.lesson-markdown .terminal-window{margin:24px 0;overflow:hidden;border:1px solid #30363d;border-radius:20px;background:#0d1117;box-shadow:0 14px 34px #0d11171f}.lesson-markdown .terminal-window-header{box-sizing:border-box;display:flex;min-height:60px;align-items:center;gap:10px;padding:18px 28px;border-bottom:1px solid #30363d;background:#161b22}.lesson-markdown .terminal-window-dots{display:flex;gap:10px;align-items:center}.lesson-markdown .terminal-window-dot{width:14px;height:14px;flex:0 0 14px;border-radius:50%}.lesson-markdown .terminal-window-dot-red{background:#ff5f56}.lesson-markdown .terminal-window-dot-yellow{background:#ffbd2e}.lesson-markdown .terminal-window-dot-green{background:#27c93f}.lesson-markdown .terminal-window-title{margin-left:8px;color:#8b949e;font-family:Inter,PingFang SC,sans-serif;font-size:.9rem;font-weight:500}.lesson-markdown .terminal-window>pre{margin:0;padding:28px 36px;overflow-x:auto;border:0;border-radius:0;background:#0d1117;box-shadow:none}.lesson-markdown .terminal-window>pre>code{display:block;min-width:max-content;padding:0;border:0;border-radius:0;background:transparent;color:#d6dde7;font-family:JetBrains Mono,SF Mono,Monaco,Consolas,monospace;font-size:.96rem;line-height:1.75}.lesson-markdown .terminal-line{display:block;min-height:1.75em}.lesson-markdown .terminal-line-prompt{display:inline-block;width:2em;color:#58a6ff;font-weight:600;-webkit-user-select:none;user-select:none}.lesson-markdown code:is(.language-powershell,.language-ps1) .terminal-line-prompt{width:3.25em}@media(max-width:640px){.lesson-markdown .terminal-window{border-radius:14px}.lesson-markdown .terminal-window-header{min-height:52px;padding:14px 18px}.lesson-markdown .terminal-window>pre{padding:22px 20px}.lesson-markdown .terminal-window>pre>code{font-size:.82rem}}.learning-space-paper{--bg: #f7f0e5;--bg-alt: #eee5d7;--surface: #fffaf1;--surface-strong: #fffdf8;--ink: #1b1916;--muted: #716c64;--faint: #a0978b;--line: #d8cebe;--line-strong: #c6b8a6;--brand: #d94d4f;--brand-light: #f6d8d1;--brand-2: #b13f43;--accent: #d94d4f;--success: #647c55;--calendar-course-bg: #f6d8d1;--calendar-course-bg-active: #efc1b7;--calendar-course-ink: #8f3036;--calendar-course-border: #c24b50;--calendar-sharing-bg: #e4eadc;--calendar-sharing-bg-active: #d3dfc7;--calendar-sharing-ink: #455c39;--calendar-sharing-border: #647c55;--calendar-live-bg: #dce8f2;--calendar-live-bg-active: #c7dceb;--calendar-live-ink: #315a78;--calendar-live-border: #507a99;--calendar-activity-bg: #f4e6c9;--calendar-activity-bg-active: #ead4a7;--calendar-activity-ink: #684810;--calendar-activity-border: #9a6f21;--shadow-sm: 0 1px 0 rgba(73, 58, 39, .05);--shadow-md: 0 12px 30px rgba(73, 58, 39, .07);--shadow: 0 18px 48px rgba(73, 58, 39, .08);--radius-xl: 18px;--radius-lg: 14px;--radius-md: 10px;--radius-sm: 6px;--max: 1240px;background:radial-gradient(circle at 12% 0%,rgba(201,84,79,.045),transparent 28rem),#f7f0e5;color:var(--ink)}.learning-space-paper .site-header.members-header{border-color:var(--line);background:#fffaf2f0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.learning-space-paper .header-row{min-height:74px;padding-block:12px}.learning-space-paper .brand-icon{border-radius:8px 2px 8px 8px;background:var(--brand);box-shadow:4px 4px #e8c7bb}.learning-space-paper .brand-meta strong{font-size:.94rem;letter-spacing:.01em}.learning-space-paper .header-nav{gap:6px;padding:4px;border:1px solid var(--line);border-radius:10px;background:#f2e9dc}.learning-space-paper .header-nav a{min-height:40px;padding:9px 13px;border-radius:7px;line-height:1.35;transition:background .18s ease,color .18s ease,transform .18s ease}.learning-space-paper .header-nav a:hover{background:#fffdf8c7}.learning-space-paper .header-nav a[aria-current=page]{background:var(--ink);color:#fffaf2}.learning-space-paper .header-nav a:active,.learning-space-paper .button:active,.learning-space-paper button:active{transform:translateY(1px)}.learning-space-paper .user-avatar,.learning-space-paper .dropdown-avatar{border-radius:9px 3px 9px 9px;background:var(--brand)}.learning-space-paper .user-avatar:hover{box-shadow:0 6px 16px #783d352e}.learning-space-paper .dropdown-menu{border-color:var(--line);border-radius:10px;background:var(--surface-strong);box-shadow:var(--shadow);max-height:calc(100dvh - 32px);overflow-x:hidden;overflow-y:auto}.learning-space-paper .members-page{padding:54px 0 78px}.learning-space-paper .members-shell .container{width:min(1120px,calc(100% - 40px))}.learning-space-paper .members-course-home{gap:38px}.learning-space-paper .members-course-hero{align-items:stretch;grid-template-columns:minmax(0,1.45fr) minmax(280px,.55fr);gap:0;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-xl);background:#f0e7da;box-shadow:var(--shadow-sm)}.learning-space-paper .members-course-heading{min-width:0;padding:34px 36px 38px}.learning-space-paper .members-course-heading h1,.learning-space-paper .members-login-copy h1,.learning-space-paper .members-lesson-header h1,.learning-space-paper .members-course-section-head h2,.learning-space-paper .members-course-roadmap-head h2,.learning-space-paper .members-chapter-knowledge-map-head h2{font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--ink)}.learning-space-paper .members-course-heading h1{margin:10px 0 12px;display:-webkit-box;overflow:hidden;max-width:24ch;font-size:clamp(1.9rem,2.7vw,2.25rem);font-weight:700;line-height:1.2;letter-spacing:-.035em;text-wrap:balance;-webkit-box-orient:vertical;-webkit-line-clamp:2}.learning-space-paper .members-breadcrumb{margin-top:0;font-size:.82rem}.learning-space-paper .members-lead{max-width:62ch;font-size:1rem;line-height:1.75;text-wrap:pretty}.learning-space-paper .members-status-row{margin-top:22px}.learning-space-paper .meta-chip{display:inline-flex;align-items:center;min-height:32px;padding:6px 10px;border:1px solid rgba(189,176,159,.72);border-radius:7px;background:#fffaf294;color:var(--muted);font-size:.76rem}.learning-space-paper .members-progress-card{align-content:center;padding:34px 30px;border:0;border-left:1px solid var(--line);border-radius:0;background:var(--surface);box-shadow:none}.learning-space-paper .members-progress-card:before{content:"学习进度";color:var(--brand);font-size:.72rem;font-weight:700;letter-spacing:.08em}.learning-space-paper .members-progress-card>strong{font-size:1.35rem;letter-spacing:-.025em}.learning-space-paper .members-progress-bar{height:7px;border-radius:2px;background:#e6ddd0}.learning-space-paper .members-progress-bar span{border-radius:inherit;background:var(--brand)}.learning-space-paper .members-course-roadmap,.learning-space-paper .members-chapter-knowledge-map,.learning-space-paper .members-course-section{border-color:var(--line);border-radius:var(--radius-xl);background:var(--surface);box-shadow:var(--shadow-sm)}.learning-space-paper [data-survey-banner]{margin-bottom:0}.learning-space-paper .survey-inline-card{padding:26px 30px;border-color:var(--line);border-radius:var(--radius-xl);background:var(--surface);box-shadow:var(--shadow-sm)}.learning-space-paper .survey-inline-badge{border:1px solid rgba(217,77,79,.28);border-radius:5px;background:var(--brand-light);color:var(--brand-2)}.learning-space-paper .survey-inline-header h3,.learning-space-paper .survey-inline-desc{color:var(--ink)}.learning-space-paper .survey-inline-desc{color:var(--muted)}.learning-space-paper .survey-inline-question select,.learning-space-paper .survey-inline-question input,.learning-space-paper .survey-inline-question textarea{border-color:var(--line);border-radius:7px;background:var(--surface-strong)}.learning-space-paper [data-survey-banner][hidden]{display:none}.learning-space-paper .survey-task{padding:0;overflow:hidden}.learning-space-paper .survey-task__summary{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:16px;align-items:center;min-height:84px;padding:18px 24px;cursor:pointer;list-style:none;transition:background .18s ease}.learning-space-paper .survey-task__summary::-webkit-details-marker{display:none}.learning-space-paper .survey-task__summary:hover{background:#fffaf1}.learning-space-paper .survey-task__summary:focus-visible{outline:2px solid var(--brand);outline-offset:-3px}.survey-task__copy{display:grid;gap:4px;min-width:0}.survey-task__copy strong{overflow:hidden;color:var(--ink);font-size:1rem;line-height:1.35;text-overflow:ellipsis;white-space:nowrap}.survey-task__copy small{color:var(--muted);font-size:.76rem}.survey-task__action{display:inline-flex;gap:9px;align-items:center;color:var(--brand-2);font-size:.8rem;font-weight:700;white-space:nowrap}.survey-task__action i,.members-course-roadmap-disclosure i{display:block;width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .18s ease}.survey-task[open] .survey-task__action i{transform:rotate(225deg) translate(-1px,-1px)}.learning-space-paper .survey-task__content{padding:22px 24px 24px;border-top:1px solid var(--line);background:#fffdf8}.learning-space-paper .members-course-roadmap,.learning-space-paper .members-chapter-knowledge-map{padding:20px}.learning-space-paper .members-course-roadmap-head,.learning-space-paper .members-chapter-knowledge-map-head{align-items:start;padding:5px 6px 20px}.learning-space-paper .members-course-roadmap-kicker,.learning-space-paper .members-chapter-knowledge-map-kicker{color:var(--brand);letter-spacing:.08em}.learning-space-paper .members-course-roadmap-head h2,.learning-space-paper .members-chapter-knowledge-map-head h2,.learning-space-paper .members-course-section-head h2{font-size:clamp(1.35rem,2vw,1.7rem);font-weight:700;line-height:1.3;letter-spacing:-.025em}.learning-space-paper .members-course-roadmap-head p,.learning-space-paper .members-chapter-knowledge-map-head p,.learning-space-paper .members-course-section-head p{max-width:68ch;line-height:1.7}.learning-space-paper .members-course-roadmap-hint,.learning-space-paper .members-chapter-knowledge-map-hint{border-color:var(--line);border-radius:6px;background:#f0e7da;color:var(--muted)}.learning-space-paper .members-course-roadmap-figure,.learning-space-paper .members-chapter-knowledge-map-figure{padding:0;border-color:var(--line);border-radius:10px;background:#fffdf8}.learning-space-paper .members-course-roadmap-figure img,.learning-space-paper .members-chapter-knowledge-map-figure img{border-radius:9px}.learning-space-paper .members-course-roadmap-summary{cursor:pointer;list-style:none}.learning-space-paper .members-course-roadmap-summary::-webkit-details-marker{display:none}.learning-space-paper .members-course-roadmap-summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}.members-course-roadmap-disclosure{display:inline-flex;gap:10px;align-items:center;flex:0 0 auto;min-height:42px;padding:9px 12px;border:1px solid var(--line);border-radius:7px;background:#f0e7da;color:var(--brand-2);font-size:.78rem;font-weight:700}.members-course-roadmap-disclosure .is-expanded,.members-course-roadmap[open] .members-course-roadmap-disclosure .is-collapsed{display:none}.members-course-roadmap[open] .members-course-roadmap-disclosure .is-expanded{display:inline}.members-course-roadmap[open] .members-course-roadmap-disclosure i{transform:rotate(225deg) translate(-1px,-1px)}.learning-space-paper .members-course-roadmap>.members-course-roadmap-hint{width:max-content;max-width:100%;margin:12px 0 0 auto}.learning-space-paper .members-course-section{padding:30px 32px 16px}.learning-space-paper .members-chapter-resources{margin-bottom:20px;padding:20px 24px;border-color:var(--line);border-radius:var(--radius-xl);background:var(--surface)}.learning-space-paper .members-chapter-resources-head h2{color:var(--brand-2)}.learning-space-paper .members-chapter-resources .ip-resource-card{border-color:var(--line);border-radius:9px;background:#f5ecdf;box-shadow:none}.learning-space-paper .members-chapter-resources .ip-resource-card:hover{border-color:var(--brand);box-shadow:var(--shadow-sm)}.learning-space-paper .members-chapter-resources .ip-resource-icon{border-radius:7px;background:var(--brand-light);color:var(--brand-2)}.learning-space-paper .members-course-section-head{margin-bottom:16px;padding-bottom:18px;border-bottom:1px solid var(--line)}.learning-space-paper .members-curriculum-row{grid-template-columns:52px minmax(0,1fr) minmax(112px,auto) 88px;min-height:94px;padding:18px 10px;border-color:var(--line);transition:background .18s ease,transform .18s ease}.learning-space-paper .members-curriculum-row[href]:hover{background:#f3eadf;transform:translate(3px)}.learning-space-paper .members-curriculum-row[href]:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}.learning-space-paper .members-curriculum-index,.learning-space-paper .members-sidebar-link-index{color:var(--brand);font-family:JetBrains Mono,ui-monospace,monospace;font-variant-numeric:tabular-nums}.learning-space-paper .members-curriculum-copy strong{margin-bottom:5px;font-size:1.04rem;line-height:1.4}.learning-space-paper .members-curriculum-copy p{max-width:68ch;line-height:1.6}.learning-space-paper .members-row-state{border:1px solid currentColor;border-radius:5px;background:transparent;font-size:.74rem}.learning-space-paper .members-row-state-incomplete{color:var(--brand)}.learning-space-paper .members-row-state-current{border-color:var(--brand);background:var(--brand);color:#fffaf1}.learning-space-paper .members-row-state-completed{background:#e4eadc;color:var(--success)}.learning-space-paper .members-row-state-locked{color:#8d857b}.learning-space-paper .members-row-link{display:block;color:var(--brand);font-size:.82rem;font-weight:700;text-align:right}.learning-space-paper .members-lesson-page{min-height:calc(100dvh - 74px);background:#f7f0e5}.learning-space-paper .members-lesson-shell{grid-template-columns:258px minmax(0,1fr);min-height:calc(100dvh - 74px)}.learning-space-paper .members-course-sidebar{top:74px;height:calc(100dvh - 74px);border-right:1px solid var(--line);background:#efe4d3}.learning-space-paper .members-course-sidebar-inner{gap:20px;padding:26px 22px 32px}.learning-space-paper .members-sidebar-breadcrumb{padding-bottom:16px;border-bottom:1px solid var(--line);font-size:.78rem}.learning-space-paper .members-breadcrumb-link:hover{color:var(--brand)}.learning-space-paper .members-sidebar-progress{font-size:.82rem}.learning-space-paper .members-sidebar-list{border-bottom:1px solid var(--line)}.learning-space-paper .members-sidebar-link{position:relative;grid-template-columns:30px minmax(0,1fr);gap:8px;min-height:58px;padding:13px 8px;border-color:var(--line);line-height:1.45;text-decoration:none;transition:background .18s ease,color .18s ease}.learning-space-paper .members-sidebar-link:hover{background:#fffaf28f;color:var(--ink)}.learning-space-paper .members-sidebar-link.is-current{background:var(--surface);color:var(--ink)}.learning-space-paper .members-sidebar-link.is-current:before{position:absolute;inset:0 auto 0 -1px;width:3px;background:var(--brand);content:""}.learning-space-paper .members-sidebar-link.is-current:after{align-self:center;color:var(--brand);content:"›";font-size:1.15rem}.learning-space-paper .members-lesson-main{background:linear-gradient(rgba(120,97,67,.025) 1px,transparent 1px),#fbf6ed;background-size:100% 28px}.learning-space-paper .members-lesson-container{max-width:1060px;padding:54px 44px 84px}.learning-space-paper .members-lesson-header,.learning-space-paper .members-lesson-outline,.learning-space-paper .members-lesson-article,.learning-space-paper [data-members-lesson-checkin],.learning-space-paper [data-members-lesson-interaction],.learning-space-paper [data-members-lesson-feedback],.learning-space-paper .members-lesson-footer-nav{width:min(760px,100%);margin-right:auto;margin-left:auto}.learning-space-paper .members-lesson-header{gap:12px;padding-bottom:28px;border-color:var(--line)}.learning-space-paper .members-lesson-topline{order:-2;padding-bottom:10px;border-bottom:1px solid var(--line);color:var(--muted);font-size:.78rem}.learning-space-paper .members-lesson-progress{order:-1;margin-bottom:14px;color:var(--muted);font-size:.78rem}.learning-space-paper .members-lesson-header .lesson-kicker{margin-top:8px;color:var(--brand);font-size:.74rem;letter-spacing:.08em}.learning-space-paper .members-lesson-header h1{margin:4px 0 6px;max-width:22ch;font-size:clamp(2rem,3.1vw,2.45rem);font-weight:700;line-height:1.22;letter-spacing:-.035em;text-wrap:balance}.learning-space-paper .members-lesson-header .lesson-summary{max-width:64ch;font-size:1rem;line-height:1.78;text-wrap:pretty}.learning-space-paper .lesson-meta{gap:8px}.learning-space-paper .members-lesson-outline{margin-top:28px;padding:20px 22px;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:8px;background:#f1e7da;box-shadow:none}.learning-space-paper .members-lesson-outline-head{margin-bottom:10px}.learning-space-paper .members-lesson-outline-head strong{font-size:1rem}.learning-space-paper .members-lesson-outline-head span{font-size:.88rem}.learning-space-paper .members-lesson-outline-list .lesson-toc-link{min-height:44px;padding:11px 0;border-color:#bdb09fb8;color:var(--muted)}.learning-space-paper .members-lesson-outline-list .lesson-toc-link:hover,.learning-space-paper .members-lesson-outline-list .lesson-toc-link.active{color:var(--brand)}.learning-space-paper .members-lesson-article{max-width:none;padding-top:42px;color:#36312b}.learning-space-paper .members-lesson-article>*{max-width:100%}.learning-space-paper .members-lesson-article h2{margin-top:62px;padding-top:10px;font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:clamp(1.45rem,2.2vw,1.8rem);font-weight:700;line-height:1.36;letter-spacing:-.025em;text-wrap:balance}.learning-space-paper .members-lesson-article h2:before{display:block;width:38px;height:3px;margin-bottom:15px;background:var(--brand);content:""}.learning-space-paper .members-lesson-article h3{margin-top:38px;font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:1.2rem;font-weight:700;line-height:1.45}.learning-space-paper .lesson-markdown p,.learning-space-paper .lesson-markdown li,.learning-space-paper .lesson-markdown td,.learning-space-paper .lesson-markdown th,.learning-space-paper .lesson-markdown blockquote{color:#4f4941;font-size:1rem;line-height:1.82}.learning-space-paper .lesson-markdown a:not(.button){color:var(--brand-2);text-decoration-color:#9b403d61;text-underline-offset:.2em}.learning-space-paper .lesson-markdown blockquote{border-color:var(--brand);border-radius:0 8px 8px 0;background:#f3e2dc}.learning-space-paper .lesson-markdown>pre,.learning-space-paper .lesson-markdown>.code-block{border-color:#302f2c;border-radius:10px;box-shadow:0 14px 34px #3930251f}.learning-space-paper .lesson-markdown table{border-color:var(--line);background:var(--surface-strong)}.learning-space-paper .lesson-markdown th,.learning-space-paper .lesson-markdown td{border-color:var(--line)}.learning-space-paper .lesson-markdown thead th{background:#eee4d6}.learning-space-paper .checkin-section,.learning-space-paper .homework-section,.learning-space-paper .lesson-interaction-section,.learning-space-paper .course-feedback-section{border-color:var(--line);border-radius:10px;background:var(--surface);box-shadow:var(--shadow-sm)}.learning-space-paper .button-primary,.learning-space-paper button.button-primary{border-color:var(--brand);border-radius:7px;background:var(--brand);color:#fff;box-shadow:none}.learning-space-paper .button-primary:hover,.learning-space-paper button.button-primary:hover{border-color:#a9433f;background:#a9433f;transform:translateY(-1px)}.learning-space-paper .button-secondary,.learning-space-paper button.button-secondary{border-color:var(--line-strong);border-radius:7px;background:var(--surface-strong);color:var(--ink)}.learning-space-paper .members-lesson-footer-nav{margin-top:46px;padding-top:26px;border-color:var(--line)}.learning-space-paper .members-footer{border-top-color:var(--line);background:#efe4d3}@media(max-width:900px){.learning-space-paper .members-course-hero{grid-template-columns:minmax(0,1fr)}.learning-space-paper .members-progress-card{border-top:1px solid var(--line);border-left:0}.learning-space-paper .members-lesson-shell{grid-template-columns:minmax(0,1fr)}.learning-space-paper .members-course-sidebar{position:static;top:auto;height:auto;overflow-y:visible;border-right:0;border-bottom:1px solid var(--line)}.learning-space-paper .members-course-sidebar-inner{gap:14px;padding:20px max(20px,calc((100vw - 760px)/2))}.learning-space-paper .members-sidebar-breadcrumb{padding-bottom:10px}.learning-space-paper .members-sidebar-list{display:flex;gap:8px;overflow-x:auto;border:0;overscroll-behavior-x:contain;scrollbar-width:thin}.learning-space-paper .members-sidebar-link{flex:0 0 min(220px,72vw);min-height:58px;padding:12px;border:1px solid var(--line);border-radius:7px;background:#fffaf26b}.learning-space-paper .members-sidebar-link.is-current:before{inset:auto 0 -1px;width:auto;height:3px}}@media(max-width:640px){.learning-space-paper .header-row{gap:10px 14px}.learning-space-paper .header-nav{width:100%;gap:2px;overflow-x:auto;flex-wrap:nowrap}.learning-space-paper .header-nav a{flex:0 0 auto;min-height:44px}.learning-space-paper .members-page{padding:32px 0 56px}.learning-space-paper .members-shell .container{width:min(100% - 28px,1120px)}.learning-space-paper .members-course-home{gap:24px}.learning-space-paper .members-course-heading,.learning-space-paper .members-progress-card{padding:26px 22px}.learning-space-paper .members-course-heading h1{font-size:clamp(1.65rem,7.2vw,1.95rem)}.learning-space-paper .members-course-roadmap,.learning-space-paper .members-chapter-knowledge-map{padding:10px}.learning-space-paper .members-course-section{padding:22px 18px 8px}.learning-space-paper .members-curriculum-row{grid-template-columns:36px minmax(0,1fr);gap:8px 12px;min-height:0;padding:17px 4px}.learning-space-paper .members-curriculum-meta,.learning-space-paper .members-row-link{grid-column:2}.learning-space-paper .members-row-link{text-align:left}.learning-space-paper .members-course-sidebar-inner{padding:18px 14px}.learning-space-paper .members-lesson-container{padding:32px 18px 58px}.learning-space-paper .members-lesson-topline,.learning-space-paper .members-lesson-progress{align-items:flex-start}.learning-space-paper .members-lesson-header h1{max-width:none;font-size:clamp(1.8rem,8vw,2.15rem)}.learning-space-paper .members-lesson-outline{padding:17px 16px}.learning-space-paper .members-lesson-article{padding-top:32px}.learning-space-paper .members-lesson-article h2{margin-top:50px;font-size:clamp(1.35rem,6vw,1.6rem)}.learning-space-paper .members-footer-nav-inner .button{width:100%}}.learning-space-paper-reader{--lesson-reading-width: 700px;--lesson-ui-width: 720px;--lesson-tool-width: 300px;--lesson-layout-gap: 32px;--muted: #56514b;--faint: #56514b;--brand: #96383b;--brand-2: #7e2f32}.learning-space-paper-reader .notif-badge{background:var(--brand)}.learning-space-paper-reader .members-lesson-container{max-width:1160px;padding:32px 32px 72px}.learning-space-paper-reader .members-lesson-header,.learning-space-paper-reader .members-lesson-outline,.learning-space-paper-reader [data-members-lesson-checkin],.learning-space-paper-reader [data-members-lesson-interaction],.learning-space-paper-reader [data-members-lesson-feedback],.learning-space-paper-reader .members-lesson-footer-nav,.learning-space-paper-reader .members-lesson-secondary-toggle{width:min(var(--lesson-ui-width),100%);margin-right:auto;margin-left:auto}.learning-space-paper-reader .members-lesson-article{width:min(var(--lesson-reading-width),100%);margin-right:auto;margin-left:auto}.learning-space-paper-reader .members-lesson-workspace{display:grid;grid-template-columns:minmax(0,var(--lesson-ui-width)) minmax(270px,var(--lesson-tool-width));gap:var(--lesson-layout-gap);align-items:start;justify-content:center}.learning-space-paper-reader .members-lesson-reading-flow,.learning-space-paper-reader .members-lesson-tool-rail{min-width:0}.learning-space-paper-reader .members-lesson-reading-flow>.members-lesson-header,.learning-space-paper-reader .members-lesson-reading-flow>.members-lesson-outline,.learning-space-paper-reader .members-lesson-reading-flow>.members-lesson-article,.learning-space-paper-reader .members-lesson-reading-flow>[data-members-lesson-checkin],.learning-space-paper-reader .members-lesson-reading-flow>[data-members-lesson-feedback],.learning-space-paper-reader .members-lesson-reading-flow>.members-lesson-secondary-toggle{width:100%;margin-right:0;margin-left:0}.learning-space-paper-reader .members-lesson-tool-rail{position:sticky;top:94px;display:flex;max-height:calc(100dvh - 116px);flex-direction:column;padding-left:24px;border-left:1px solid var(--line)}.learning-space-paper-reader .members-lesson-tool-rail[hidden]{display:none}.learning-space-paper-reader .members-lesson-tool-rail-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:2px 2px 14px;border-bottom:1px solid var(--line)}.learning-space-paper-reader .members-lesson-tool-rail-head>span{display:grid;gap:3px}.learning-space-paper-reader .members-lesson-tool-rail-head strong{font-size:.96rem}.learning-space-paper-reader .members-lesson-tool-rail-head small{color:var(--muted);font-size:.74rem;line-height:1.45}.learning-space-paper-reader .members-lesson-tool-rail-toggle{display:none;width:42px;height:42px;flex:0 0 42px;place-items:center;padding:0;border:0;background:transparent;color:var(--brand-2);cursor:pointer}.learning-space-paper-reader .members-lesson-tool-rail-toggle svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.6;transition:transform .16s ease-out}.learning-space-paper-reader .members-lesson-tool-rail.is-open .members-lesson-tool-rail-toggle svg{transform:rotate(180deg)}.learning-space-paper-reader .members-lesson-tool-rail-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.learning-space-paper-reader .members-lesson-tool-rail-body{min-height:0;overflow-y:auto;overscroll-behavior-y:contain;scrollbar-color:rgba(126,47,50,.38) transparent;scrollbar-width:thin}.learning-space-paper-reader .members-lesson-tool-rail-body::-webkit-scrollbar{width:6px}.learning-space-paper-reader .members-lesson-tool-rail-body::-webkit-scrollbar-thumb{border-radius:6px;background:#7e2f3261}.learning-space-paper-reader .members-lesson-tool-rail [data-members-lesson-interaction]{width:100%;margin:0}.learning-space-paper-reader .members-lesson-tool-rail .lesson-interaction-section{margin:0;border:0;border-radius:0;background:transparent;box-shadow:none}.learning-space-paper-reader .members-lesson-tool-rail .lesson-interaction-tabs{padding:0}.learning-space-paper-reader .members-lesson-tool-rail .lesson-interaction-tab{flex:1;min-height:48px;margin:0;padding:13px 4px}.learning-space-paper-reader .members-lesson-tool-rail .lesson-interaction-section [data-tab-panel]{padding:18px 2px 22px}.learning-space-paper-reader .members-lesson-tool-rail .lesson-notes-section{margin:0;padding:0;border:0;border-radius:0;background:transparent;box-shadow:none}.learning-space-paper-reader .members-lesson-tool-rail .lesson-notes-header{margin-bottom:10px}.learning-space-paper-reader .members-lesson-tool-rail .lesson-notes-header h3{font-size:.92rem}.learning-space-paper-reader .members-lesson-tool-rail .lesson-notes-meta,.learning-space-paper-reader .members-lesson-tool-rail .lesson-notes-visibility,.learning-space-paper-reader .members-lesson-tool-rail .lesson-notes-actions{align-items:flex-start;flex-direction:column}.learning-space-paper-reader .members-lesson-tool-rail .lesson-notes-radio{padding:7px 10px}.learning-space-paper-reader .members-lesson-tool-rail .lesson-notes-actions .button{width:100%}.learning-space-paper-reader .members-lesson-tool-rail .lesson-comment-card{gap:9px}.learning-space-paper-reader .members-lesson-tool-rail .lesson-comment-avatar{width:30px;height:30px}.learning-space-paper-reader .members-lesson-article table{display:block;max-width:100%;overflow-x:auto;overscroll-behavior-x:contain}.learning-space-paper-reader .members-lesson-article img{width:min(800px,calc(100% + 80px));max-width:calc(100vw - 322px)}.learning-space-paper-reader .members-lesson-header{gap:8px;padding-bottom:20px}.learning-space-paper-reader .members-lesson-topline{padding-bottom:8px;color:var(--muted);font-size:.8rem}.learning-space-paper-reader .members-lesson-progress{margin-bottom:4px;color:var(--muted);font-size:.8rem}.learning-space-paper-reader .members-lesson-header .lesson-kicker{margin-top:0;color:var(--brand-2);font-size:.78rem;letter-spacing:.04em}.learning-space-paper-reader .members-lesson-header h1{margin:2px 0 4px;max-width:24ch;font-size:clamp(1.85rem,2.8vw,2.15rem);line-height:1.25;letter-spacing:0}.learning-space-paper-reader .members-lesson-header .lesson-summary{max-width:58ch;line-height:1.7}.learning-space-paper-reader .lesson-meta{margin-top:4px}.learning-space-paper-reader .members-lesson-stage-meta{display:none}.learning-space-paper-reader .members-lesson-outline{margin-top:18px;padding:16px 0}.learning-space-paper-reader .members-lesson-outline-head{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:8px}.learning-space-paper-reader .members-lesson-outline-title{display:grid;gap:3px}.learning-space-paper-reader .members-lesson-outline-title>strong{color:var(--ink);font-size:1rem}.learning-space-paper-reader .members-lesson-outline-title>span{color:var(--muted);font-size:.8rem}.learning-space-paper-reader .members-lesson-outline-toggle,.learning-space-paper-reader .members-sidebar-current-toggle{display:none;font:inherit}.learning-space-paper-reader .members-lesson-outline-list .lesson-toc-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:32px}.learning-space-paper-reader .members-lesson-outline-list .lesson-toc-link{min-height:38px;padding:8px 2px;color:var(--muted);font-size:.9rem;line-height:1.45}.learning-space-paper-reader .members-lesson-article{padding-top:28px}.learning-space-paper-reader .members-lesson-article h2{margin-top:44px;margin-bottom:12px;padding-top:0;font-size:clamp(1.4rem,2vw,1.65rem);line-height:1.4;letter-spacing:0;scroll-margin-top:92px}.learning-space-paper-reader .members-lesson-article>h2:first-child{margin-top:0}.learning-space-paper-reader .members-lesson-article h2:before{width:28px;height:2px;margin-bottom:10px}.learning-space-paper-reader .members-lesson-article h3{margin-top:32px;letter-spacing:0;scroll-margin-top:92px}.learning-space-paper-reader .lesson-markdown>p{margin-bottom:18px;color:#4f4941;line-height:1.8}.learning-space-paper-reader .lesson-markdown .code-block pre code,.learning-space-paper-reader .lesson-markdown .terminal-block pre code,.learning-space-paper-reader .lesson-markdown .terminal-window>pre>code{font-size:.875rem;line-height:1.75}.learning-space-paper-reader .lesson-code-copy{min-width:48px;min-height:32px;margin-left:auto;padding:5px 10px;border:1px solid rgba(255,255,255,.18);border-radius:5px;background:transparent;color:#d7d5d1;font:600 .72rem/1 Inter,PingFang SC,sans-serif;cursor:pointer}.learning-space-paper-reader .lesson-code-copy:hover{border-color:#ffffff6b;color:#fff}.learning-space-paper-reader .lesson-code-copy:focus-visible,.learning-space-paper-reader .members-lesson-outline-toggle:focus-visible,.learning-space-paper-reader .members-sidebar-current-toggle:focus-visible,.learning-space-paper-reader .members-lesson-secondary-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:3px}.learning-space-paper-reader .lesson-code-copy:disabled{cursor:default;opacity:.72}.learning-space-paper-reader .lesson-code-scroll-hint{display:none;align-items:center;min-height:30px;padding:6px 14px;border-top:1px solid rgba(255,255,255,.1);background:#181817;color:#bdb8b0;font-size:.72rem}.learning-space-paper-reader .members-lesson-footer-nav{margin-top:24px;margin-bottom:14px;padding-top:20px}.learning-space-paper-reader .members-lesson-secondary-toggle{display:flex;min-height:68px;align-items:center;justify-content:space-between;gap:20px;margin-top:0;padding:14px 2px;border:0;border-top:1px solid var(--line);background:transparent;color:var(--ink);text-align:left;cursor:pointer}.learning-space-paper-reader .members-lesson-secondary-toggle>span{display:grid;gap:3px}.learning-space-paper-reader .members-lesson-secondary-toggle strong{font-size:.96rem}.learning-space-paper-reader .members-lesson-secondary-toggle small{color:var(--muted);font-size:.78rem}.learning-space-paper-reader .members-lesson-secondary-toggle svg,.learning-space-paper-reader .members-lesson-outline-toggle svg,.learning-space-paper-reader .members-sidebar-current-toggle svg{width:18px;height:18px;flex:0 0 18px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.6;transition:transform .16s ease-out}.learning-space-paper-reader .members-lesson-secondary-toggle.is-open svg,.learning-space-paper-reader .members-lesson-outline.is-open .members-lesson-outline-toggle svg,.learning-space-paper-reader .members-course-sidebar.is-open .members-sidebar-current-toggle svg{transform:rotate(180deg)}.learning-space-paper-reader .members-lesson-secondary-content[hidden]{display:none!important}.learning-space-paper-reader .members-lesson-secondary-content:not([hidden]){margin-top:10px;margin-bottom:18px}.learning-space-paper-reader .members-lesson-secondary-content:not([hidden]) .lesson-interaction-section,.learning-space-paper-reader .members-lesson-secondary-content:not([hidden]) .course-feedback-section{margin-top:0}@media(max-width:1359px){.learning-space-paper-reader .members-lesson-workspace{display:block;width:min(var(--lesson-ui-width),100%);margin-right:auto;margin-left:auto}.learning-space-paper-reader .members-lesson-tool-rail{position:static;width:100%;max-height:none;margin-top:28px;padding-left:0;border-top:1px solid var(--line);border-left:0}.learning-space-paper-reader .members-lesson-tool-rail-head{min-height:68px;padding:12px 2px;border-bottom:0}.learning-space-paper-reader .members-lesson-tool-rail-toggle{display:grid}.learning-space-paper-reader .members-lesson-tool-rail-body{overflow:visible}.learning-space-paper-reader .members-lesson-tool-rail-body:not([hidden]){padding-bottom:18px}.learning-space-paper-reader .members-lesson-article img{max-width:calc(100vw - 48px)}}@media(max-width:1120px){.learning-space-paper-reader .members-lesson-shell{grid-template-columns:minmax(0,1fr)}.learning-space-paper-reader .members-course-sidebar{position:static;top:auto;height:auto;overflow-y:visible;overscroll-behavior-y:auto;scrollbar-gutter:auto;border-right:0;border-bottom:1px solid var(--line)}.learning-space-paper-reader .members-course-sidebar-inner{gap:8px;padding:12px max(18px,calc((100vw - 720px)/2))}.learning-space-paper-reader .members-course-sidebar-head{display:block}.learning-space-paper-reader .members-paper-lesson-course-mark{display:none}.learning-space-paper-reader .members-sidebar-breadcrumb{padding-bottom:6px}.learning-space-paper-reader .members-sidebar-progress{display:grid;grid-template-columns:auto minmax(80px,1fr);gap:12px;align-items:center}.learning-space-paper-reader .members-sidebar-progress>strong{font-size:.76rem}.learning-space-paper-reader .members-sidebar-current-toggle{display:flex;width:100%;min-height:62px;align-items:center;justify-content:space-between;gap:16px;padding:10px 12px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--ink);text-align:left;cursor:pointer}.learning-space-paper-reader .members-sidebar-current-toggle>span{display:grid;min-width:0;gap:3px}.learning-space-paper-reader .members-sidebar-current-toggle small{color:var(--brand-2);font-size:.68rem;font-weight:700;letter-spacing:.06em}.learning-space-paper-reader .members-sidebar-current-toggle strong{overflow:hidden;font-size:.92rem;text-overflow:ellipsis;white-space:nowrap}.learning-space-paper-reader .members-sidebar-list{display:none;max-height:min(54vh,420px);overflow-y:auto;overscroll-behavior-y:contain}.learning-space-paper-reader .members-course-sidebar.is-open .members-sidebar-list{display:grid;gap:0;border-top:1px solid var(--line)}.learning-space-paper-reader .members-sidebar-link{min-height:52px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent}}@media(max-width:640px){.learning-space-paper-reader .members-lesson-container{padding:24px 18px 54px}.learning-space-paper-reader .members-lesson-header h1{font-size:clamp(1.75rem,7.8vw,1.9rem)}.learning-space-paper-reader .members-lesson-outline{margin-top:14px;padding:14px 0}.learning-space-paper-reader .members-lesson-outline-head{margin-bottom:0}.learning-space-paper-reader .members-lesson-outline-toggle{display:inline-flex;min-height:40px;align-items:center;gap:6px;padding:8px 2px 8px 12px;border:0;background:transparent;color:var(--brand-2);font-size:.8rem;font-weight:700;cursor:pointer}.learning-space-paper-reader .members-lesson-outline-list{display:none;padding-top:10px}.learning-space-paper-reader .members-lesson-outline.is-open .members-lesson-outline-list{display:block}.learning-space-paper-reader .members-lesson-outline-list .lesson-toc-nav{grid-template-columns:minmax(0,1fr)}.learning-space-paper-reader .members-lesson-article{padding-top:24px}.learning-space-paper-reader .members-lesson-article h2{margin-top:38px;font-size:clamp(1.35rem,5.8vw,1.45rem)}.learning-space-paper-reader .members-lesson-article>h2:first-child{margin-top:0}.learning-space-paper-reader .lesson-markdown .code-block pre code,.learning-space-paper-reader .lesson-markdown .terminal-block pre code,.learning-space-paper-reader .lesson-markdown .terminal-window>pre>code{font-size:.875rem}.learning-space-paper-reader .is-horizontally-scrollable>.lesson-code-scroll-hint:not([hidden]){display:flex}.learning-space-paper-reader .members-footer-nav-inner{display:grid;grid-template-columns:minmax(0,1fr)}.learning-space-paper-reader .members-footer-nav-inner .button{width:100%}.learning-space-paper-reader .members-lesson-secondary-toggle{min-height:64px}}@media(prefers-reduced-motion:reduce){.learning-space-paper *,.learning-space-paper *:before,.learning-space-paper *:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}.learning-space-paper-has-rail{padding-left:248px}.learning-paper-rail{position:fixed;inset:0 auto 0 0;z-index:30;display:flex;flex-direction:column;width:248px;padding:22px 16px 18px;border-right:1px solid var(--line);background:linear-gradient(180deg,rgba(255,250,241,.24),transparent 22%),#efe4d3}.learning-paper-rail__brand{display:flex;align-items:center;gap:11px;min-height:54px;padding:0 8px 18px;border-bottom:1px solid var(--line)}.learning-paper-rail__brand>span:first-child{display:grid;width:40px;height:40px;place-items:center;border-radius:8px 2px 8px 8px;background:var(--brand);color:#fffaf1;font-size:.82rem;font-weight:800;box-shadow:4px 4px #dfbdb1}.learning-paper-rail__brand-copy{display:grid;min-width:0;gap:2px}.learning-paper-rail__brand-copy strong,.learning-paper-rail__brand-copy small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.learning-paper-rail__brand-copy strong{color:var(--ink);font-size:.96rem;letter-spacing:.01em}.learning-paper-rail__brand-copy small{color:var(--faint);font-family:JetBrains Mono,ui-monospace,monospace;font-size:.58rem;font-weight:600;letter-spacing:.08em}.learning-paper-rail__nav{display:grid;flex:1 1 auto;min-height:0;align-content:start;gap:18px;margin-top:18px;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}.learning-paper-rail__nav-group{display:grid;align-content:start;grid-auto-rows:auto;gap:4px}.learning-paper-rail__nav-label{display:flex;align-items:end;height:25px;padding:0 11px 5px;color:var(--faint);font-size:.66rem;font-weight:700;letter-spacing:.12em}.learning-paper-rail__nav a{position:relative;display:grid;grid-template-columns:32px minmax(0,1fr);gap:11px;align-items:center;min-height:48px;padding:7px 10px;border:1px solid transparent;border-radius:10px;color:var(--muted);transition:background .17s ease,border-color .17s ease,box-shadow .17s ease,color .17s ease,transform .17s ease}.learning-paper-rail__nav a>span{display:grid;width:32px;height:32px;place-items:center;border:1px solid rgba(113,108,100,.24);border-radius:8px;background:#fffaf161;font-size:.7rem;transition:background .17s ease,border-color .17s ease,color .17s ease}.learning-paper-rail__nav a svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.7}.learning-paper-rail__nav a:hover{border-color:#c6b8a6b3;background:#fffaf1b8;color:var(--ink);transform:translate(2px)}.learning-paper-rail__nav a[aria-current=page]{border-color:var(--line);background:var(--surface);color:var(--ink);box-shadow:0 5px 14px #493a270f}.learning-paper-rail__nav a[aria-current=page]:before,.learning-paper-rail__notification[aria-current=page]:before,.learning-paper-rail__account.is-current .learning-paper-rail__account-button:before{position:absolute;inset:10px auto 10px -1px;width:3px;border-radius:0 2px 2px 0;background:var(--brand);content:""}.learning-paper-rail__nav a[aria-current=page]>span{border-color:#d94d4f47;background:var(--brand-light);color:var(--brand-2)}.learning-paper-rail__nav a strong{font-size:.87rem;font-weight:600}.learning-paper-rail__nav a:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}.learning-paper-rail__utility{display:grid;flex:0 0 auto;gap:5px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}.learning-paper-rail__notification,.learning-paper-rail__account-button{display:grid;position:relative;grid-template-columns:32px minmax(0,1fr);gap:11px;align-items:center;width:100%;min-height:48px;padding:7px 10px;border:1px solid transparent;border-radius:10px;background:transparent;color:var(--muted);text-align:left;cursor:pointer;transition:background .18s ease,color .18s ease,transform .18s ease}.learning-paper-rail__notification:hover,.learning-paper-rail__account-button:hover{border-color:#c6b8a6b3;background:#fffaf1b8;color:var(--ink)}.learning-paper-rail__notification[aria-current=page],.learning-paper-rail__account.is-current .learning-paper-rail__account-button,.learning-paper-rail__account-button[aria-expanded=true]{border-color:var(--line);background:var(--surface);color:var(--ink);box-shadow:0 5px 14px #493a270f}.learning-paper-rail__notification:focus-visible,.learning-paper-rail__account-button:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.learning-paper-rail__notification-icon{position:relative;display:grid;width:32px;height:32px;place-items:center;border:1px solid rgba(113,108,100,.24);border-radius:8px;background:#fffaf161}.learning-paper-rail__notification[aria-current=page] .learning-paper-rail__notification-icon{border-color:#d94d4f47;background:var(--brand-light);color:var(--brand-2)}.learning-paper-rail__notification>strong{color:currentColor;font-size:.87rem;font-weight:600}.learning-paper-rail__notification .notif-badge{top:-5px;right:-7px;border-color:#efe4d3}.learning-paper-rail__account{position:relative}.learning-paper-rail__account-button{grid-template-columns:40px minmax(0,1fr) 16px;min-height:64px;padding:8px 9px;color:var(--ink)}.learning-paper-rail__account-button .learning-paper-rail__avatar{display:grid;width:40px;height:40px;place-items:center;overflow:hidden;border:1px solid rgba(177,63,67,.24);border-radius:10px;background:var(--brand);color:#fffaf1;font-weight:700}.learning-paper-rail__avatar .user-avatar-image{display:block;width:100%;height:100%;border-radius:inherit;object-fit:cover;object-position:center}.learning-space-paper [data-header-avatar] .user-avatar-image[src^="data:image/svg+xml"],.learning-space-paper .profile-avatar[src^="data:image/svg+xml"]{transform:scale(1.42)}.learning-paper-rail__account-copy{display:grid;min-width:0;gap:2px}.learning-paper-rail__account-copy strong,.learning-paper-rail__account-copy small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.learning-paper-rail__account-copy strong{font-size:.86rem}.learning-paper-rail__account-copy small{display:flex;align-items:center;gap:5px;color:var(--muted);font-size:.7rem}.learning-paper-rail__account-copy small i{width:5px;height:5px;border-radius:50%;background:var(--success);box-shadow:0 0 0 2px #647c5521}.learning-paper-rail__account-chevron{width:16px;height:16px;fill:none;stroke:var(--faint);stroke-linecap:round;stroke-linejoin:round;stroke-width:1.5;transition:transform .17s ease}.learning-paper-rail__account-button[aria-expanded=true] .learning-paper-rail__account-chevron{transform:rotate(180deg)}.learning-paper-rail__account .dropdown-menu{inset:auto auto 0 calc(100% + 28px);width:272px;max-height:min(420px,calc(100dvh - 32px));overflow-x:hidden;overflow-y:auto}.learning-space-paper-has-rail .members-page{min-height:100dvh;padding:46px 0 78px}.learning-space-paper-has-rail .members-shell .container{width:min(1160px,calc(100% - 56px))}.learning-space-paper-has-rail .members-resources-page h1,.learning-space-paper-has-rail .members-faq-page h1,.learning-space-paper-has-rail .member-notifications-page h1,.learning-space-paper-has-rail .achievements-page-shell h1,.learning-space-paper-has-rail .members-profile-card-shell h1,.learning-space-paper-has-rail .members-password-card h1{font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-weight:700;letter-spacing:-.04em;text-wrap:balance}.learning-space-paper-has-rail .member-notifications-head,.learning-space-paper-has-rail .members-faq-hero,.learning-space-paper-has-rail .members-faq-section,.learning-space-paper-has-rail .member-notification-card,.learning-space-paper-has-rail .member-notification-detail-card,.learning-space-paper-has-rail .member-notification-empty,.learning-space-paper-has-rail .members-profile-card-shell,.learning-space-paper-has-rail .members-password-card,.learning-space-paper-has-rail .achievement-group,.learning-space-paper-has-rail .achievements-page-loading,.learning-space-paper-has-rail .achievements-page-error{border-color:var(--line);background:var(--surface);box-shadow:var(--shadow-sm)}.learning-space-paper-has-rail .member-notifications-head{padding:30px 32px;border:1px solid var(--line);border-radius:var(--radius-xl)}.learning-space-paper-has-rail .member-notifications-head h1{margin:10px 0 9px;font-size:clamp(2rem,4vw,3.2rem)}.learning-space-paper-has-rail .member-notifications-head>div>p:last-child{max-width:62ch;margin-bottom:0;color:var(--muted);line-height:1.7}.learning-space-paper-has-rail .member-notification-card{border-radius:var(--radius-lg);box-shadow:none}.learning-space-paper-has-rail .member-notification-card:hover{border-color:var(--line-strong);background:var(--surface-strong);box-shadow:var(--shadow-sm)}.learning-space-paper-has-rail .member-notification-type,.learning-space-paper-has-rail .member-notification-card.is-unread .member-notification-state{border-radius:5px;background:var(--brand-light);color:var(--brand-2)}.learning-space-paper-has-rail .members-faq-hero,.learning-space-paper-has-rail .members-faq-section{border-radius:var(--radius-xl)}.learning-space-paper-has-rail .members-faq-title-row h1{font-size:clamp(2rem,4vw,3.2rem)}.learning-space-paper-has-rail .members-faq-count{border:1px solid rgba(217,77,79,.24);border-radius:5px;background:var(--brand-light);color:var(--brand-2)}.learning-space-paper-has-rail .members-faq-row,.learning-space-paper-has-rail .members-resource-list{border-color:var(--line);background:var(--surface-strong)}.learning-space-paper-has-rail .members-faq-row:hover{border-color:var(--line-strong);background:#f4ebdf;box-shadow:var(--shadow-sm)}.learning-space-paper-has-rail .members-faq-row:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px}.learning-space-paper-has-rail .members-faq-copy strong,.learning-space-paper-has-rail .members-faq-copy p{overflow-wrap:anywhere}.learning-space-paper-has-rail .members-faq-meta span:last-child{display:inline-flex;align-items:center;gap:8px}.learning-space-paper-has-rail .members-faq-meta span:last-child i{display:block;width:7px;height:7px;border-top:1.5px solid currentColor;border-right:1.5px solid currentColor;transform:rotate(45deg);transition:transform .17s ease}.learning-space-paper-has-rail .members-faq-row:hover .members-faq-meta span:last-child i,.learning-space-paper-has-rail .members-faq-row:focus-visible .members-faq-meta span:last-child i{transform:translate(3px) rotate(45deg)}.learning-space-paper-has-rail .member-faq-page{display:block}.learning-space-paper-has-rail .faq-detail-page{width:min(920px,100%);max-width:none;margin:0 auto;gap:20px}.learning-space-paper-has-rail .faq-detail-header{gap:12px;padding:28px 32px 30px;border-color:var(--line);border-radius:var(--radius-xl);background:var(--surface);box-shadow:var(--shadow-sm)}.learning-space-paper-has-rail .faq-detail-header h1{max-width:28ch;color:var(--ink);font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:clamp(1.85rem,3.4vw,2.65rem);font-weight:700;line-height:1.2;letter-spacing:-.035em;overflow-wrap:anywhere;text-wrap:balance}.learning-space-paper-has-rail .faq-detail-header .members-lead{max-width:68ch;color:var(--muted);font-size:.98rem;line-height:1.75;overflow-wrap:anywhere}.learning-space-paper-has-rail .faq-back-link{margin-top:6px}.learning-space-paper-has-rail .faq-detail-body{min-width:0;padding:34px 42px 42px;border-color:var(--line);border-radius:var(--radius-xl);background:var(--surface-strong);box-shadow:var(--shadow-sm);overflow:hidden}.learning-space-paper-has-rail .faq-detail-body.lesson-markdown{color:#36312b}.learning-space-paper-has-rail .faq-detail-body.lesson-markdown h1,.learning-space-paper-has-rail .faq-detail-body.lesson-markdown h2,.learning-space-paper-has-rail .faq-detail-body.lesson-markdown h3,.learning-space-paper-has-rail .faq-detail-body.lesson-markdown h4{color:var(--ink);font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;overflow-wrap:anywhere}.learning-space-paper-has-rail .faq-detail-body.lesson-markdown h1,.learning-space-paper-has-rail .faq-detail-body.lesson-markdown h2{margin-top:42px;margin-bottom:14px;font-size:clamp(1.35rem,2.2vw,1.65rem);font-weight:700;line-height:1.35;letter-spacing:-.025em}.learning-space-paper-has-rail .faq-detail-body.lesson-markdown h3{margin-top:30px;margin-bottom:10px;font-size:1.15rem;font-weight:700;line-height:1.45}.learning-space-paper-has-rail .faq-detail-body.lesson-markdown h4{margin-top:22px;margin-bottom:8px;font-size:1rem;font-weight:700}.learning-space-paper-has-rail .faq-detail-body.lesson-markdown p,.learning-space-paper-has-rail .faq-detail-body.lesson-markdown li,.learning-space-paper-has-rail .faq-detail-body.lesson-markdown blockquote{max-width:72ch}.learning-space-paper-has-rail .faq-detail-body.lesson-markdown img{width:auto;max-width:100%;margin:24px 0;position:static;transform:none;border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 22px #493a2714}.learning-space-paper-has-rail .faq-detail-body.lesson-markdown table{display:block;max-width:100%;overflow-x:auto}@media(max-width:640px){.learning-space-paper-has-rail .faq-detail-page{width:100%}.learning-space-paper-has-rail .faq-detail-header{padding:22px 18px 24px;border-radius:var(--radius-lg)}.learning-space-paper-has-rail .faq-detail-header h1{max-width:none;font-size:clamp(1.65rem,8vw,2rem)}.learning-space-paper-has-rail .faq-detail-body{padding:24px 18px 30px;border-radius:var(--radius-lg)}}.learning-space-paper-has-rail .members-faq-index,.learning-space-paper-has-rail .members-faq-meta span:last-child{color:var(--brand-2);font-family:JetBrains Mono,ui-monospace,monospace}.learning-space-paper-has-rail .members-toolbox-item{border-color:var(--line);border-radius:8px;background:#f6eee3}.learning-space-paper-has-rail .members-toolbox-item:hover{border-color:#d94d4f6b;background:var(--brand-light)}.learning-space-paper-has-rail .achievements-hero{border:1px solid var(--line);border-radius:var(--radius-xl);background:#eadfd2;color:var(--ink);box-shadow:var(--shadow-sm)}.learning-space-paper-has-rail .achievements-hero:before,.learning-space-paper-has-rail .achievements-hero:after{border-color:#b13f431f}.learning-space-paper-has-rail .achievements-eyebrow{color:var(--brand-2)}.learning-space-paper-has-rail .achievements-hero-copy p{color:var(--muted)}.learning-space-paper-has-rail .achievement-summary{border-color:var(--line);background:#fffaf1c2}.learning-space-paper-has-rail .achievement-summary-number span,.learning-space-paper-has-rail .achievement-summary small{color:var(--muted)}.learning-space-paper-has-rail .achievement-progress{background:#dfd3c4}.learning-space-paper-has-rail .achievement-progress span{background:var(--brand)}.learning-space-paper-has-rail .achievement-group{border-radius:var(--radius-xl)}.learning-space-paper-has-rail .members-profile-card-shell{max-width:820px;padding:34px;border:1px solid var(--line);border-radius:var(--radius-xl)}.learning-space-paper-has-rail .profile-avatar-section{margin:0 0 28px;padding:24px;border:1px solid var(--line);border-radius:var(--radius-lg);background:#f3eadf}.learning-space-paper-has-rail .profile-avatar-wrapper{width:104px;height:104px;border:1px solid var(--line-strong);border-radius:18px;box-shadow:5px 5px #dfcfc1}.learning-space-paper-has-rail .profile-avatar,.learning-space-paper-has-rail .profile-avatar-overlay{border-radius:inherit}.learning-space-paper-has-rail .profile-avatar-overlay{background:#1b1916ad}.learning-space-paper-has-rail .profile-security-link:hover{background:#f3eadf;color:var(--brand-2)}.learning-space-paper-has-rail .profile-security-icon{border-radius:9px;background:var(--brand-light);color:var(--brand-2)}@media(min-width:901px){.learning-space-paper-has-rail .members-header{display:none}}.members-paper-folio{color:var(--brand);font-size:.7rem;font-weight:700;letter-spacing:.1em}.learning-space-paper-has-rail .members-shell .container{width:min(1160px,calc(100% - 48px))}.learning-space-paper .members-paper-dashboard{gap:34px}.learning-space-paper .members-paper-dashboard-hero{grid-template-columns:minmax(0,1.45fr) minmax(290px,.72fr);gap:clamp(36px,4.5vw,72px);overflow:hidden;padding:clamp(32px,3.4vw,50px);border:1px solid var(--line);border-radius:14px;background:linear-gradient(118deg,#fffaf2f5,#f5ebdee6),var(--surface);box-shadow:var(--shadow-md)}.learning-space-paper .members-paper-dashboard-hero .members-course-heading{align-self:center;padding:0}.members-dashboard-greeting{margin:10px 0 28px;color:var(--muted);font-size:.9rem;font-weight:600}.members-dashboard-focus-label{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;color:var(--brand);font-size:.72rem;font-weight:700;letter-spacing:.08em}.members-dashboard-focus-label [data-resume-index-group]{color:var(--muted);font-family:JetBrains Mono,ui-monospace,monospace;font-size:.68rem;letter-spacing:.04em}.members-dashboard-focus-label [data-resume-index-group][hidden]{display:none}.learning-space-paper .members-paper-dashboard-hero .members-course-heading h1{max-width:18ch;margin:10px 0 12px;font-size:clamp(2rem,3.2vw,2.6rem);line-height:1.16;-webkit-line-clamp:3}.learning-space-paper .members-paper-dashboard-hero .members-lead{max-width:52ch;margin:0}.members-dashboard-action-row{display:flex;min-width:0;flex-direction:column;justify-content:space-between;gap:34px;margin:0;padding-left:clamp(28px,3.5vw,52px);border-left:1px solid var(--line)}.learning-space-paper .members-paper-dashboard-hero .members-progress-card{display:grid;gap:20px;min-width:0;padding:0;border:0;background:transparent}.learning-space-paper .members-paper-dashboard-hero .members-progress-card:before{display:none}.members-paper-progress-copy{display:grid;grid-template-columns:minmax(0,1fr);gap:6px;align-items:end}.members-paper-progress-copy strong{color:var(--ink);font-size:clamp(3.1rem,5vw,4.5rem);line-height:.9;letter-spacing:-.065em}.members-paper-progress-copy span{color:var(--ink);font-size:.82rem;font-weight:700}.members-paper-progress-copy p{margin:0;font-size:.7rem;line-height:1.35}.members-paper-dashboard-hero .members-progress-card>.members-progress-bar{height:6px;margin-top:0}.members-dashboard-resume-action{width:100%;min-height:48px;padding:11px 18px;white-space:nowrap}.learning-space-paper .members-paper-course-catalog{padding:0;border:0;background:transparent;box-shadow:none}.learning-space-paper .members-paper-course-catalog .members-course-section-head{display:flex;align-items:end;justify-content:space-between;gap:32px;padding:0 0 22px}.members-paper-course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.members-paper-course-grid:not(.is-expanded) .members-paper-course-card.is-catalog-secondary{display:none}.members-course-catalog-actions{display:flex;gap:24px;align-items:center;justify-content:space-between;padding:20px 0 8px}.members-course-catalog-actions p{max-width:64ch;margin:0;color:var(--muted);font-size:.82rem;line-height:1.6}.members-course-catalog-toggle{display:inline-flex;gap:10px;align-items:center;justify-content:center;min-height:44px;padding:9px 13px;border:1px solid var(--line);border-radius:7px;background:transparent;color:var(--brand-2);cursor:pointer;font:inherit;font-size:.8rem;font-weight:700;white-space:nowrap;transition:border-color .18s ease,background .18s ease,transform .18s ease}.members-course-catalog-toggle:hover{border-color:var(--brand);background:var(--brand-light)}.members-course-catalog-toggle:active{transform:translateY(1px)}.members-course-catalog-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.learning-space-paper .members-paper-course-card{position:relative;display:grid;grid-template-columns:minmax(0,1fr);min-height:198px;overflow:hidden;padding:0;border:1px solid var(--line);border-radius:10px;background:var(--surface);box-shadow:var(--shadow-sm);transition:border-color .18s ease,background .18s ease,box-shadow .18s ease,transform .18s ease}.learning-space-paper .members-paper-course-card.is-available-course{background:var(--surface)}.learning-space-paper .members-paper-course-card.is-completed-course{border-color:#647c5561;background:var(--surface);box-shadow:inset 4px 0 0 var(--success),var(--shadow-sm)}.learning-space-paper .members-paper-course-card.is-current-course,.learning-space-paper .members-paper-course-card.is-in-progress-course{border-color:#d94d4f9e;background:var(--surface);box-shadow:inset 4px 0 0 var(--brand),var(--shadow-sm)}.learning-space-paper .members-paper-course-card.is-locked{opacity:1;border-color:#bdb2a4;border-style:dashed;background:#ece6dd;box-shadow:none;color:#665f57;cursor:not-allowed}.learning-space-paper .members-paper-course-card.is-locked .members-curriculum-index>strong,.learning-space-paper .members-paper-course-card.is-locked .members-curriculum-index small,.learning-space-paper .members-paper-course-card.is-locked .members-paper-course-card__count,.learning-space-paper .members-paper-course-card.is-locked .members-curriculum-copy p,.learning-space-paper .members-paper-course-card.is-locked .members-row-link{color:#817970}.learning-space-paper .members-paper-course-card.is-locked .members-row-state-locked{border-color:#817970;background:#ded7cd;color:#5f5850}.learning-space-paper .members-paper-course-card[href]:hover{border-color:var(--brand);background:var(--surface-strong);transform:translateY(-3px);box-shadow:var(--shadow-md)}.learning-space-paper .members-paper-course-card.is-completed-course[href]:hover{border-color:var(--success);box-shadow:inset 4px 0 0 var(--success),var(--shadow-md)}.members-paper-course-card__body{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-rows:auto 1fr auto;gap:14px 16px;min-width:0;min-height:198px;padding:17px 18px 18px}.members-paper-course-card__top{display:flex;grid-column:1 / -1;align-items:start;justify-content:space-between;gap:20px}.learning-space-paper .members-paper-course-card .members-curriculum-index{display:grid;gap:5px}.learning-space-paper .members-paper-course-card .members-curriculum-index small{color:var(--muted);font-size:.62rem;letter-spacing:.12em}.learning-space-paper .members-paper-course-card .members-curriculum-index>strong{color:var(--brand);font-size:1.8rem;line-height:1}.members-paper-course-card__count{color:var(--muted);font-size:.76rem}.learning-space-paper .members-paper-course-card .members-curriculum-copy{grid-column:1 / -1}.learning-space-paper .members-paper-course-card .members-curriculum-copy>strong{margin-bottom:10px;font-size:1.22rem;line-height:1.35;letter-spacing:-.025em}.learning-space-paper .members-paper-course-card .members-curriculum-copy p{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2}.learning-space-paper .members-paper-course-card .members-curriculum-meta{align-self:end;justify-items:start}.learning-space-paper .members-paper-course-card .members-row-link{align-self:end;color:var(--ink)}.learning-space-paper .members-paper-appendix{box-shadow:none}.learning-space-paper .members-paper-chapter-hero{grid-template-columns:minmax(0,1fr) 360px;background:#e8ddd0}.learning-space-paper .members-paper-chapter-page .members-course-heading h1{display:block;overflow:visible;max-width:22ch;font-size:clamp(2rem,3vw,2.55rem);-webkit-line-clamp:unset}.learning-space-paper .members-paper-chapter-cover{display:grid;grid-template-columns:112px minmax(0,1fr);gap:18px;align-content:center;border-left:1px solid var(--line);background:#f8efe5}.learning-space-paper .members-paper-chapter-cover:before{display:none}.members-paper-chapter-cover__number{display:grid;grid-row:1 / span 3;align-content:end;min-height:150px;padding:18px;border-radius:7px;background:var(--brand);color:#fffaf1}.members-paper-chapter-cover__number span{font-size:.62rem;letter-spacing:.12em}.members-paper-chapter-cover__number strong{font-family:JetBrains Mono,ui-monospace,monospace;font-size:2.7rem;line-height:1}.members-paper-chapter-cover__progress{display:grid;gap:8px;align-self:end}.members-paper-chapter-cover__progress strong{font-size:1.05rem}.members-paper-chapter-cover>p{align-self:start}.members-paper-chapter-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:28px;align-items:start}.learning-space-paper .members-paper-lesson-catalog{padding:28px 30px 12px}.members-paper-chapter-aside{display:grid;gap:22px}.learning-space-paper .members-paper-chapter-aside .members-chapter-resources,.learning-space-paper .members-paper-chapter-aside .members-chapter-knowledge-map{margin:0;padding:18px}.learning-space-paper .members-paper-chapter-aside .members-chapter-knowledge-map-head{display:grid;gap:8px;padding-bottom:14px}.learning-space-paper .members-paper-chapter-aside .members-chapter-knowledge-map-head h2{font-size:1.15rem}.learning-space-paper .members-paper-chapter-aside .members-chapter-knowledge-map-hint{display:none}.learning-space-paper .members-paper-chapter-aside .members-chapter-resources .ip-resource-links{grid-template-columns:1fr}.learning-space-paper .members-paper-lesson-row{grid-template-columns:42px minmax(0,1fr) 92px 60px;min-height:104px;padding-inline:4px;border-radius:0;background:transparent}.learning-space-paper .members-paper-lesson-row.is-current{margin-inline:-12px;padding-inline:12px;border-left:3px solid var(--brand);background:#f3e9dc}.learning-space-paper .members-paper-lesson-row .members-curriculum-index strong{font-size:.9rem}.learning-space-paper .members-paper-lesson-row .members-curriculum-meta{gap:8px}.members-paper-lesson-course-mark{display:grid;gap:7px;padding:4px 0 8px}.members-paper-lesson-course-mark>span{color:var(--brand);font-size:.68rem;font-weight:700;letter-spacing:.1em}.members-paper-lesson-course-mark>strong{font-size:1.12rem;line-height:1.4}.members-paper-lesson-course-mark>small{color:var(--muted)}.learning-space-paper .members-paper-lesson-heading{display:grid;gap:12px;margin-top:10px}.learning-space-paper-reader .members-lesson-outline{padding:24px 0;border-width:1px 0;border-color:var(--line);border-radius:0;background:transparent;box-shadow:none}.learning-space-paper-reader .members-lesson-outline-list .lesson-toc-link{padding-inline:2px}.learning-space-paper .members-lesson-topline a{color:var(--brand-2);text-decoration:none}.learning-space-paper .members-lesson-topline a:hover{text-decoration:underline;text-underline-offset:.18em}.learning-space-paper-reader .members-header .header-nav{display:none}.learning-space-paper-reader .members-header .brand-meta strong:after{margin-left:8px;color:var(--muted);content:"· 课节阅读";font-size:.78rem;font-weight:500}@media(max-width:1180px)and (min-width:901px){.learning-space-paper-has-rail{padding-left:88px}.learning-paper-rail{width:88px;padding-inline:14px}.learning-paper-rail__brand{justify-content:center}.learning-paper-rail__brand-copy,.learning-paper-rail__nav-label,.learning-paper-rail__nav a strong,.learning-paper-rail__notification>strong,.learning-paper-rail__account-copy,.learning-paper-rail__account-chevron{display:none}.learning-paper-rail__nav{gap:12px}.learning-paper-rail__nav a,.learning-paper-rail__notification,.learning-paper-rail__account-button{grid-template-columns:1fr;justify-items:center;padding-inline:8px}.learning-paper-rail__account-button{min-height:56px}}@media(max-width:900px){.learning-space-paper-has-rail{padding-left:0}.learning-paper-rail{display:none}.learning-space-paper-has-rail .members-header .header-nav{width:100%;gap:2px;overflow-x:auto;flex-wrap:nowrap;overscroll-behavior-x:contain;scrollbar-width:thin}.learning-space-paper-has-rail .members-header .header-nav a{flex:0 0 auto}.learning-space-paper-has-rail .members-header .header-nav a[aria-current=page]{border:1px solid var(--line);background:var(--surface);color:var(--brand-2);box-shadow:inset 0 -2px 0 var(--brand)}.learning-space-paper .members-paper-dashboard-hero,.learning-space-paper .members-paper-chapter-hero{grid-template-columns:minmax(0,1fr)}.members-dashboard-action-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:end;padding:26px 0 0;border-top:1px solid var(--line);border-left:0}.learning-space-paper .members-paper-dashboard-hero .members-progress-card{gap:14px}.members-paper-progress-copy{grid-template-columns:auto minmax(0,1fr);gap:2px 12px;align-items:center}.members-paper-progress-copy strong{grid-row:1 / span 2;font-size:2.25rem}.members-dashboard-resume-action{width:auto}.learning-space-paper .members-paper-dashboard-hero .members-progress-card{padding:0;border:0}.learning-space-paper .members-paper-chapter-cover{grid-template-columns:112px minmax(0,1fr);border-top:1px solid var(--line);border-left:0}.members-paper-chapter-layout{grid-template-columns:minmax(0,1fr)}.members-paper-chapter-aside{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:720px){.members-paper-course-grid,.members-paper-chapter-aside{grid-template-columns:minmax(0,1fr)}.learning-space-paper .members-paper-course-catalog .members-course-section-head{display:grid;gap:10px}.members-course-catalog-actions{display:grid;gap:12px}}@media(max-width:640px){.learning-space-paper .members-paper-dashboard-hero{gap:22px;padding:24px 20px 20px}.learning-space-paper .members-paper-dashboard-hero .members-course-heading{padding:0}.members-dashboard-greeting{margin-bottom:22px}.learning-space-paper .members-paper-dashboard-hero .members-course-heading h1{font-size:clamp(1.75rem,8vw,2rem)}.learning-space-paper .members-paper-dashboard-hero .members-progress-card{padding:0}.members-dashboard-action-row{grid-template-columns:minmax(0,1fr);gap:14px;padding-top:22px}.members-course-catalog-toggle{width:100%}.members-dashboard-resume-action{justify-self:start}.learning-space-paper .survey-task__summary{grid-template-columns:auto minmax(0,1fr);gap:10px 12px;padding:16px}.survey-task__action{grid-column:2;justify-self:start}.learning-space-paper .survey-task__content{padding:18px 16px 16px}.survey-task__copy strong{white-space:normal}.learning-space-paper .members-paper-course-card{grid-template-columns:minmax(0,1fr);min-height:190px;padding:0}.members-paper-course-card__body{min-height:190px;padding:16px 14px 18px}.learning-space-paper .members-paper-course-card .members-curriculum-meta,.learning-space-paper .members-paper-course-card .members-row-link{grid-column:auto}.learning-space-paper .members-paper-chapter-page .members-course-heading h1{font-size:clamp(1.75rem,8vw,2rem)}.learning-space-paper .members-paper-chapter-cover{grid-template-columns:92px minmax(0,1fr)}.members-paper-chapter-cover__number{min-height:128px;padding:14px}.members-paper-chapter-cover__number strong{font-size:2.15rem}.learning-space-paper .members-paper-lesson-catalog{padding:22px 18px 8px}.learning-space-paper .members-paper-lesson-row{grid-template-columns:30px minmax(0,1fr) auto;gap:8px 10px;min-height:0}.learning-space-paper .members-paper-lesson-row .members-curriculum-meta{grid-column:2;display:flex;flex-wrap:wrap;align-items:center;gap:8px}.learning-space-paper .members-paper-lesson-row .members-row-link{grid-column:3;grid-row:1 / span 2;align-self:center}.learning-space-paper-reader .members-header .brand-meta strong:after{display:none}}.learning-space-paper-reader .members-paper-lesson-heading{gap:8px;margin-top:2px}.learning-space-paper-reader .members-lesson-outline{padding:16px 0}.learning-space-paper .members-programming-schedule{padding-bottom:24px}.members-calendar{display:grid;gap:16px}.members-calendar-toolbar,.members-calendar-month-nav{display:flex;align-items:center}.members-calendar-toolbar{justify-content:space-between;gap:16px}.members-calendar-month-nav{gap:10px}.members-calendar-month-nav h3{min-width:128px;margin:0;color:var(--ink);font-size:1rem;letter-spacing:-.015em;text-align:center;font-variant-numeric:tabular-nums}.members-calendar-month-nav button,.members-calendar-today{min-width:42px;min-height:42px;border:1px solid var(--line);border-radius:7px;background:var(--surface-strong);color:var(--ink);cursor:pointer;transition:border-color .18s ease,background .18s ease,transform .18s ease}.members-calendar-month-nav button{font-size:1rem}.members-calendar-today{padding:8px 12px;color:var(--brand-2);font-size:.78rem;font-weight:700}.members-calendar-month-nav button:hover,.members-calendar-today:hover{border-color:var(--brand);background:var(--brand-light)}.members-calendar-month-nav button:focus-visible,.members-calendar-today:focus-visible,.members-calendar-event:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.members-calendar-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(230px,.34fr);gap:16px;align-items:start}.members-calendar-month{min-width:0;overflow:hidden;border:1px solid var(--line);border-radius:10px;background:var(--surface-strong)}.members-calendar-weekdays,.members-calendar-days{display:grid;grid-template-columns:repeat(7,minmax(0,1fr))}.members-calendar-weekdays{border-bottom:1px solid var(--line);background:#eee4d7}.members-calendar-weekdays span{padding:9px 4px;color:var(--muted);font-size:.68rem;font-weight:700;text-align:center}.members-calendar-day{position:relative;min-width:0;min-height:104px;padding:8px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:#fffdf8}.members-calendar-day:nth-child(7n){border-right:0}.members-calendar-day:nth-last-child(-n+7){border-bottom:0}.members-calendar-day.is-outside{background:#f3ecdf;color:var(--faint)}.members-calendar-day.is-today{box-shadow:inset 0 0 0 2px var(--brand)}.members-calendar-day-number{display:grid;width:25px;height:25px;place-items:center;color:var(--muted);font-family:JetBrains Mono,ui-monospace,monospace;font-size:.72rem;font-variant-numeric:tabular-nums}.members-calendar-day.is-today .members-calendar-day-number{border-radius:5px;background:var(--brand);color:#fff}.members-calendar-day-events{display:grid;gap:5px;margin-top:5px}.members-calendar-event{--calendar-type-bg: var(--calendar-course-bg);--calendar-type-bg-active: var(--calendar-course-bg-active);--calendar-type-ink: var(--calendar-course-ink);--calendar-type-border: var(--calendar-course-border);display:grid;gap:2px;min-width:0;width:100%;padding:5px 6px;overflow:hidden;border:1px solid var(--calendar-type-border);border-radius:5px;background:var(--calendar-type-bg);color:var(--calendar-type-ink);cursor:pointer;font:inherit;text-align:left;text-decoration:none;transition:border-color .18s ease,background .18s ease,transform .18s ease}.members-calendar-event:hover,.members-calendar-event.is-selected{border-color:var(--calendar-type-ink);background:var(--calendar-type-bg-active);transform:translateY(-1px)}.members-calendar-event.is-past{opacity:.72;filter:saturate(.7)}.members-calendar-event.is-closed{border-style:dashed;opacity:.56}.members-calendar-event.is-range{border-left-color:var(--calendar-type-ink)}.members-calendar-event.is-range-middle{border-style:dashed solid}.members-calendar-event.is-range-end{border-right-color:var(--calendar-type-ink)}.members-calendar .is-type-course{--calendar-type-bg: var(--calendar-course-bg);--calendar-type-bg-active: var(--calendar-course-bg-active);--calendar-type-ink: var(--calendar-course-ink);--calendar-type-border: var(--calendar-course-border)}.members-calendar .is-type-sharing{--calendar-type-bg: var(--calendar-sharing-bg);--calendar-type-bg-active: var(--calendar-sharing-bg-active);--calendar-type-ink: var(--calendar-sharing-ink);--calendar-type-border: var(--calendar-sharing-border)}.members-calendar .is-type-live{--calendar-type-bg: var(--calendar-live-bg);--calendar-type-bg-active: var(--calendar-live-bg-active);--calendar-type-ink: var(--calendar-live-ink);--calendar-type-border: var(--calendar-live-border)}.members-calendar .is-type-activity{--calendar-type-bg: var(--calendar-activity-bg);--calendar-type-bg-active: var(--calendar-activity-bg-active);--calendar-type-ink: var(--calendar-activity-ink);--calendar-type-border: var(--calendar-activity-border)}.members-calendar-event time{font-family:JetBrains Mono,ui-monospace,monospace;font-size:.6rem;font-weight:700}.members-calendar-event span{display:-webkit-box;overflow:hidden;font-size:.68rem;font-weight:700;line-height:1.35;-webkit-box-orient:vertical;-webkit-line-clamp:2}.members-calendar-more{color:var(--muted);font-size:.66rem;font-weight:700}.members-calendar-agenda{position:sticky;top:24px;display:grid;gap:14px;min-height:280px;padding:20px;border:1px solid var(--line);border-radius:10px;background:#f1e7da}.members-calendar-agenda-date{display:grid;gap:8px;padding-bottom:14px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}.members-calendar-agenda-date-point{display:grid;gap:3px}.members-calendar-agenda-date span{color:var(--brand);font-size:.7rem;font-weight:700}.members-calendar-agenda-date strong{font-size:.9rem}.members-calendar-agenda-date time{color:var(--muted);font-family:JetBrains Mono,ui-monospace,monospace;font-size:.74rem}.members-calendar-agenda-date .members-calendar-agenda-date-separator{position:relative;padding-left:18px;color:var(--muted);font-size:.64rem}.members-calendar-agenda-date .members-calendar-agenda-date-separator:before{position:absolute;left:5px;top:-7px;bottom:-7px;width:1px;background:var(--line);content:""}.members-calendar-state{justify-self:start;padding:3px 7px;border:1px solid currentColor;border-radius:5px;color:var(--muted);font-size:.68rem;font-weight:700}.members-calendar-state.is-today,.members-calendar-state.is-early,.members-calendar-state.is-future{color:var(--brand-2)}.members-calendar-state.is-past{color:var(--success)}.members-calendar-kind{display:inline-flex;justify-self:start;margin-top:-7px;padding:3px 7px;border:1px solid var(--calendar-type-border);border-radius:4px;background:var(--calendar-type-bg);color:var(--calendar-type-ink);font-size:.68rem;font-weight:700}.members-calendar-agenda h3{margin:0;color:var(--ink);font-size:1.08rem;line-height:1.42;letter-spacing:-.02em;text-wrap:balance}.members-calendar-agenda>p,.members-calendar-agenda-empty p{margin:0;color:var(--muted);font-size:.82rem;line-height:1.65;text-wrap:pretty;white-space:pre-line}.members-calendar-agenda-footer{display:grid;gap:9px;align-self:end;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font-size:.72rem}.members-calendar-agenda-footer a{color:var(--brand-2);font-size:.8rem;font-weight:700;text-decoration:none}.members-calendar-agenda-footer strong{color:var(--faint);font-size:.72rem}.members-calendar-agenda-empty{display:grid;gap:9px;align-content:center;min-height:230px;text-align:center}.members-calendar-agenda-empty>span{color:var(--brand);font-size:2rem}.members-calendar-legend{display:grid;gap:8px;color:var(--muted);font-size:.68rem}.members-calendar-legend-group{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center}.members-calendar-legend-group>strong{min-width:30px;color:var(--ink);font-size:.66rem}.members-calendar-legend span{display:inline-flex;gap:6px;align-items:center}.members-calendar-legend i{width:8px;height:8px;border:1px solid var(--calendar-type-border);border-radius:2px;background:var(--calendar-type-bg)}.members-calendar-legend i.is-type-sharing{border-radius:50%}.members-calendar-legend i.is-type-live{width:11px;height:6px;border-radius:999px}.members-calendar-legend i.is-type-activity{width:7px;height:7px;transform:rotate(45deg)}.members-calendar-legend i.is-status-open,.members-calendar-legend i.is-status-future,.members-calendar-legend i.is-status-closed{border-color:var(--ink);background:var(--ink)}.members-calendar-legend i.is-status-future{background:transparent}.members-calendar-legend i.is-status-closed{border-style:dashed;background:transparent;opacity:.55}.members-schedule-empty{display:grid;grid-template-columns:62px minmax(0,1fr);gap:16px;align-items:center;padding:26px 8px 20px}.members-schedule-empty>span{display:grid;place-items:center;width:56px;height:56px;border:1px solid var(--line);border-radius:8px 2px 8px 8px;background:#f0e7da;color:var(--brand);font-family:JetBrains Mono,ui-monospace,monospace;font-size:.72rem;font-weight:700}.members-schedule-empty strong{color:var(--ink)}.members-schedule-empty p{margin:5px 0 0;color:var(--muted);font-size:.86rem;line-height:1.6}@media(max-width:900px){.members-calendar-layout{grid-template-columns:minmax(0,1fr)}.members-calendar-day{min-height:88px;padding:6px}.members-calendar-agenda{position:static;min-height:0}}@media(max-width:640px){.learning-space-paper .members-programming-schedule{padding-inline:14px}.members-calendar-toolbar{align-items:stretch}.members-calendar-month-nav{gap:4px}.members-calendar-month-nav h3{min-width:112px;font-size:.9rem}.members-calendar-month-nav button,.members-calendar-today{min-width:44px;min-height:44px}.members-calendar-today{padding-inline:9px}.members-calendar-weekdays span{padding:8px 1px;font-size:.58rem}.members-calendar-day{min-height:52px;padding:4px}.members-calendar-day-number{width:20px;height:20px;font-size:.62rem}.members-calendar-day-events{display:flex;gap:3px;align-items:center;margin-top:3px}.members-calendar-event{display:block;width:8px;min-width:8px;height:8px;padding:0;border:0;border-radius:2px;background:var(--calendar-type-ink)}.members-calendar-event.is-range{border:0}.members-calendar-event.is-past{background:var(--calendar-type-ink);opacity:.64;filter:none}.members-calendar-event.is-closed{background:var(--calendar-type-ink);opacity:.38}.members-calendar-event.is-selected{outline:2px solid var(--calendar-type-ink);outline-offset:2px}.members-calendar-event.is-type-course{border-radius:2px}.members-calendar-event.is-type-sharing{border-radius:50%}.members-calendar-event.is-type-live{width:11px;min-width:11px;height:6px;border-radius:999px}.learning-space-paper .members-calendar-event.is-type-activity{width:7px;min-width:7px;height:7px;border-radius:1px;transform:rotate(45deg)}.members-calendar-event time,.members-calendar-event span{display:none}.members-calendar-more{font-size:.54rem}.members-calendar-agenda{min-height:260px;padding:18px}}@media(max-width:640px){.learning-space-paper-reader .members-lesson-outline{padding:14px 0}}:root{--bg: #f9f7f4;--bg-alt: #f3f0ea;--surface: #ffffff;--surface-strong: #ffffff;--ink: #1a1a1a;--muted: #6b6b6b;--faint: #9e9e9e;--line: #e8e5e0;--line-strong: #d5d0c8;--brand: #2d6a4f;--brand-light: #e8f5ee;--brand-2: #b8860b;--accent: #b8860b;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 16px rgba(0,0,0,.06);--shadow: 0 8px 32px rgba(0,0,0,.07);--radius-xl: 28px;--radius-lg: 20px;--radius-md: 12px;--radius-sm: 8px;--max: 1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}main{min-height:100vh}.container{width:min(var(--max),calc(100% - 32px));margin:0 auto}.site-header{position:sticky;top:0;z-index:20;-webkit-backdrop-filter:blur(16px) saturate(1.2);backdrop-filter:blur(16px) saturate(1.2);background:#f9f7f4c7;border-bottom:1px solid var(--line)}.members-header{background:#ffffffe0}.header-row{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}.brand-mark{display:inline-flex;align-items:center;gap:12px;font-weight:700;letter-spacing:-.02em;min-width:0}.brand-icon{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:var(--brand);color:#fff;font-weight:700}.eyebrow,.card-kicker,.section-kicker{font-size:.78rem;font-weight:700;color:var(--brand);letter-spacing:.04em}.meta-chip{font-size:.78rem;color:var(--muted)}.brand-meta{min-width:0}.brand-meta strong{display:block;font-size:.95rem;line-height:1.25}.header-nav{display:flex;align-items:center;gap:24px;color:var(--muted);font-size:.95rem;font-weight:600}.header-nav a:hover,.header-nav a[aria-current=page]{color:var(--ink)}.header-actions{display:flex;align-items:center;gap:12px}.user-dropdown{position:relative}.user-avatar{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;overflow:hidden;background:var(--brand);color:#fff;font-weight:700;font-size:1rem;border:none;outline:none;padding:0;box-sizing:border-box;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease}.user-avatar:hover{transform:translateY(-1px);box-shadow:0 4px 12px #29584340}.user-avatar:focus-visible{outline:2px solid var(--brand);outline-offset:2px}[data-header-avatar]{display:flex;align-items:center;justify-content:center;width:100%;height:100%}.avatar-initial{display:block;line-height:1}.user-avatar-image{display:block;width:100%;height:100%;border-radius:inherit;object-fit:cover;object-position:center}.dropdown-menu{position:absolute;top:calc(100% + 8px);right:0;width:240px;background:#fff;border-radius:12px;box-shadow:0 10px 40px #1f2a2426;border:1px solid var(--line);z-index:1000;display:none;overflow:hidden}.dropdown-header{display:flex;align-items:center;gap:12px;padding:16px;background:#ffffffd9;border-bottom:1px solid var(--line)}.dropdown-avatar{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;overflow:hidden;flex-shrink:0;background:var(--brand);color:#fff;font-weight:700;font-size:.9rem}.dropdown-user-info{display:flex;flex-direction:column;min-width:0;gap:2px}.dropdown-user-info strong{display:-webkit-box;overflow:hidden;font-size:.95rem;color:var(--ink);-webkit-box-orient:vertical;-webkit-line-clamp:2}.dropdown-user-info span{font-size:.85rem;color:var(--muted)}.dropdown-divider{height:1px;background:var(--line);margin:0}.dropdown-item{display:flex;align-items:center;gap:12px;padding:12px 16px;color:var(--ink);text-decoration:none;font-size:.95rem;font-weight:500;transition:background .18s ease;cursor:pointer;width:100%;border:none;background:none;text-align:left}.dropdown-item:hover{background:#1f2a240a}.dropdown-item[aria-current=page]{background:#2d6a4f14;color:var(--brand)}.dropdown-icon{width:16px;height:16px;color:var(--muted)}.dropdown-item:hover .dropdown-icon{color:var(--ink)}.dropdown-item-logout{color:#dc3545}.dropdown-item-logout:hover{background:#dc354514}.dropdown-item-logout .dropdown-icon{color:#dc3545}.button,button.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:1px solid transparent;border-radius:999px;padding:11px 20px;font-weight:600;font-size:.92rem;transition:transform .15s ease,background .15s ease,box-shadow .15s ease;cursor:pointer}.button:hover{transform:translateY(-1px)}.button-primary{background:var(--brand);color:#fff;box-shadow:0 4px 14px #2d6a4f33}.button-primary:hover{box-shadow:0 6px 20px #2d6a4f47}.header-cta{padding:9px 16px;font-size:.88rem}.button-secondary{background:var(--surface);border-color:var(--line);color:var(--ink)}.button-secondary:hover{border-color:var(--line-strong)}.hero{padding:80px 0 36px}.hero .container,.home-section .container{display:grid;justify-items:center}.hero-panel,.glass-card,.stage-card,.course-card,.quote-card,.profile-card,.cta-band,.article-panel,.sidebar-panel,.metric-card{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-sm);border-radius:var(--radius-lg)}.hero-panel{padding:36px;position:relative;overflow:hidden;max-width:760px;width:100%;text-align:center}.hero-panel:after{content:"";position:absolute;inset:auto -10% -28% 36%;height:240px;background:radial-gradient(circle,rgba(45,106,79,.1),transparent 64%);pointer-events:none}.hero h1,.page-hero h1,.section-title,.article-panel h2,.article-panel h3,.callout-title{font-family:Fraunces,"Source Han Serif SC",serif;letter-spacing:-.03em;line-height:1.18}.hero h1{font-size:clamp(1.75rem,4vw,2.25rem);font-weight:600;margin:12px 0 16px}.hero p.lead{color:var(--muted);font-size:1.05rem;max-width:54ch;margin:0 auto 24px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}.hero-note{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:center}.meta-chip{border:1px solid var(--line);border-radius:999px;padding:9px 12px}.profile-card{padding:28px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(180deg,#ffffffe0,#f7f5f1d9),linear-gradient(135deg,rgba(41,88,67,.06),transparent)}.profile-card-inline{margin-top:18px;padding:22px 24px;max-width:860px;background:linear-gradient(180deg,#ffffffe0,#f7f5f1d9),linear-gradient(135deg,rgba(41,88,67,.04),transparent);box-shadow:0 16px 40px #31332914}.profile-card-inline p{margin:10px 0 0;max-width:72ch}.profile-inline-head{display:grid;gap:6px}.profile-label{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;color:var(--brand);font-weight:700}.profile-card p{color:var(--muted)}.signature{margin-top:26px;padding-top:18px;border-top:1px solid var(--line)}.signature strong{display:block;font-size:1rem}.home-section{padding:30px 0 18px}.section-head{display:grid;gap:10px;justify-items:center;margin:0 auto 20px;text-align:center;max-width:760px}.section-title{margin:8px 0 0;font-size:clamp(1.4rem,3vw,1.75rem);font-weight:600}.section-copy{max-width:54ch;color:var(--muted);font-size:1rem}.grid-3,.grid-2,.audience-grid,.metrics-grid,.path-grid,.resource-grid{display:grid;gap:18px}.grid-3,.audience-grid,.resource-grid{grid-template-columns:repeat(3,minmax(0,1fr));width:100%;max-width:980px}.grid-2,.metrics-grid,.path-grid{grid-template-columns:repeat(2,minmax(0,1fr));width:100%;max-width:980px}.stage-card,.course-card,.quote-card,.metric-card{padding:24px;text-align:center}.stage-card h3,.course-card h3,.quote-card h3,.metric-card h3{margin:8px 0 10px;font-size:1.15rem;font-weight:600;letter-spacing:-.01em}.stage-card p,.course-card p,.quote-card p,.metric-card p,.sidebar-panel p,.article-panel p,.article-panel li{color:var(--muted)}.card-link{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-weight:700;color:var(--brand)}.metric-value{font-family:Fraunces,serif;font-size:3rem;line-height:1;margin-top:10px}.timeline-shell{position:relative;display:grid;gap:18px;max-width:920px;padding-left:24px}.timeline-shell:before{content:"";position:absolute;left:10px;top:12px;bottom:12px;width:1px;background:#1f2a241f}.timeline-step{display:grid;grid-template-columns:64px minmax(0,1fr);gap:18px;align-items:start}.timeline-marker{position:relative;z-index:1;width:22px;height:22px;border-radius:999px;display:grid;place-items:center;font-size:.65rem;font-weight:700;color:var(--brand);background:#f7f1e6;border:1px solid rgba(45,106,79,.15);margin-top:6px}.timeline-body{padding:22px 24px;border:1px solid var(--line);border-radius:var(--radius-xl);background:#ffffffd9;box-shadow:var(--shadow)}.timeline-body h3{margin:8px 0 10px;font-size:1.45rem;letter-spacing:-.03em}.timeline-body p{color:var(--muted);margin:0}.lesson-flow{display:grid;gap:26px}.lesson-overview,.task-proof{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px}.lesson-overview-item,.task-proof-item{padding:18px 18px 16px;border-radius:18px;border:1px solid var(--line);background:#ffffffd9}.lesson-overview-item span,.task-proof-item span{display:block;color:var(--muted);font-size:.86rem;margin-bottom:8px}.lesson-overview-item strong,.task-proof-item strong{display:block;font-size:1rem;line-height:1.45}.editorial-panel{max-width:920px;padding:28px 30px;border:1px solid var(--line);border-radius:var(--radius-xl);background:#ffffffd9;box-shadow:var(--shadow)}.editorial-panel p{color:var(--muted);max-width:72ch}.editorial-quotes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px}.editorial-quotes blockquote{margin:0;padding:18px 20px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(135deg,#ffffffe0,#ebe4d3e0);font-size:1.02rem}.cta-band{margin:52px 0 78px;padding:30px;display:grid;justify-items:center;gap:14px;background:var(--brand);color:#fff}.cta-band .section-kicker{color:#ffffffb3}.cta-band .section-title,.cta-band .section-copy{text-align:center}.cta-band .section-copy{margin:0 auto}.cta-band p,.cta-band .meta-chip{color:#ffffffc7}.cta-band .meta-chip{border-color:#fff3}.cta-band .button-primary{background:#fff;color:var(--brand)}.cta-band .button-secondary{background:transparent;border-color:#ffffff40;color:#fff}.site-footer{padding:24px 0 42px;color:var(--muted)}.footer-shell{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;gap:16px;align-items:center}.members-footer .footer-shell{justify-content:center;text-align:center;flex-wrap:wrap}.members-footer .footer-brand{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:center}.members-footer .footer-divider{color:#1f2a2426}.members-footer .footer-meta{font-size:.875rem;color:var(--muted)}.page-hero{padding:56px 0 22px}.page-hero-shell{padding:30px;border:1px solid var(--line);border-radius:var(--radius-xl);background:#ffffffd9;box-shadow:var(--shadow)}.page-hero h1{font-size:clamp(2.4rem,5vw,4.2rem);margin:14px 0 16px}.page-hero .summary{color:var(--muted);font-size:1.05rem;max-width:60ch}.page-layout{padding:14px 0 52px}.lesson-reader{padding:32px 0 72px}.lesson-reader-shell{display:grid;grid-template-columns:minmax(220px,260px) minmax(0,1fr);gap:32px;align-items:start}.lesson-reader-sidebar{min-width:0}.lesson-sidebar-inner{position:sticky;top:88px;padding-right:24px;border-right:1px solid var(--line)}.lesson-sidebar-kicker,.lesson-kicker{display:block;font-size:.78rem;font-weight:700;color:var(--brand);letter-spacing:.04em}.lesson-sidebar-title,.lesson-reader-header h1{font-family:Fraunces,Times New Roman,serif;letter-spacing:-.03em}.lesson-sidebar-title{margin:14px 0 10px;font-size:1.5rem;font-weight:600;line-height:1.14}.lesson-sidebar-overview{color:var(--muted);font-size:.98rem;text-decoration:underline;text-underline-offset:.16em}.lesson-sidebar-meta{display:grid;gap:8px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}.lesson-sidebar-outline{margin-top:28px}.lesson-sidebar-outline h2{margin:0 0 14px;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}.lesson-toc-nav{display:grid}.lesson-toc-link{display:block;padding:15px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.98rem;line-height:1.45;transition:color .16s ease}.lesson-toc-link:hover,.lesson-toc-link.active{color:var(--ink)}.lesson-toc-link.active{font-weight:700}.lesson-toc-depth-3{padding-left:18px;font-size:.92rem}.lesson-toc-empty{margin:0;color:var(--muted);font-size:.95rem}.lesson-reader-content{min-width:0}.lesson-reader-header{padding-top:12px}.lesson-reader-header h1{margin:12px 0 18px;font-size:clamp(1.5rem,3vw,1.85rem);line-height:1.16}.lesson-reader-rule{width:100%;height:1px;margin-bottom:22px;background:var(--line)}.lesson-summary{margin:0;max-width:64ch;color:var(--muted);font-size:1.02rem}.lesson-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.lesson-article{padding-top:42px;max-width:68ch}.page-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:22px;align-items:start}.sidebar-panel{display:none}.sidebar-panel h3{margin:0 0 14px;font-size:1rem}.sidebar-list,.outline-list,.lesson-actions,.footer-links{display:grid;gap:10px}.sidebar-list a,.outline-list a{border:1px solid transparent;border-radius:12px;padding:10px 12px;color:var(--muted);background:#ffffff8c}.sidebar-list a.active,.sidebar-list a:hover,.outline-list a:hover{color:var(--ink);border-color:var(--line);background:#ffffffd9}.article-panel{padding:30px}.article-panel h2{font-size:clamp(1.8rem,3vw,2.5rem);margin:0 0 12px}.article-panel h3{font-size:1.35rem;margin:0 0 10px}.article-panel h4{font-size:1.08rem;margin:0 0 10px}.lesson-markdown>*:first-child{margin-top:0}.lesson-markdown>*+*{margin-top:18px}.lesson-heading{scroll-margin-top:108px}.lesson-markdown h2{font-family:Fraunces,Times New Roman,serif;margin-top:52px;margin-bottom:14px;font-size:1.35rem;font-weight:600;line-height:1.22;letter-spacing:-.02em}.lesson-markdown h3{font-family:Inter,PingFang SC,sans-serif;margin-top:28px;margin-bottom:10px;font-size:1.08rem;font-weight:700;line-height:1.35;letter-spacing:-.01em}.lesson-markdown h4{font-family:Inter,PingFang SC,sans-serif;margin-top:22px;margin-bottom:8px;font-size:1rem;font-weight:700}.lesson-markdown h2+p,.lesson-markdown h3+p,.lesson-markdown h4+p{margin-top:8px}.lesson-markdown p,.lesson-markdown li,.lesson-markdown td,.lesson-markdown th,.lesson-markdown blockquote{font-size:1rem;line-height:1.72}.members-page{padding:88px 0 84px}.members-shell .container{display:block}.members-entry-card,.members-form-card,.members-login-copy,.members-panel,.members-profile-card-shell{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);border-radius:var(--radius-xl)}.members-login-copy h1,.members-form-head h2,.members-panel-title,.members-course-heading h1,.members-course-section-head h2,.members-lesson-header h1{font-family:Fraunces,"Source Han Serif SC",serif;letter-spacing:-.04em}.members-course-home{display:grid;gap:28px}.members-course-hero{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,.78fr);gap:28px;align-items:start}.members-course-heading h1,.members-login-copy h1{margin:8px 0 10px;font-size:clamp(1.35rem,3vw,1.75rem);font-weight:600;line-height:1.18}.members-lesson-header h1{margin:12px 0 14px;font-size:clamp(1.5rem,3vw,1.85rem);font-weight:600;line-height:1.16}.members-breadcrumb{margin:10px 0 0;color:var(--muted);font-size:.95rem}.members-lead,.members-form-head p,.members-panel p{margin:0;color:var(--muted)}.members-progress-card,.members-course-section,.members-upcoming-card,.members-course-sidebar,.members-lesson-outline{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);border-radius:var(--radius-xl)}.members-progress-card{padding:28px;display:grid;gap:14px}.members-progress-icon{width:54px;height:54px;display:grid;place-items:center;border-radius:18px;border:1px solid rgba(45,106,79,.12);color:var(--brand);font-size:1.4rem}.members-progress-card p{margin:0;color:var(--muted)}.members-progress-bar{width:100%;height:10px;overflow:hidden;border-radius:999px;background:#1f2a241f}.members-progress-bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#1a1a1a,#4a5a4e)}.members-course-tabs{display:flex;align-items:center;gap:0;border-bottom:1px solid rgba(31,42,36,.12)}.members-tab{border:1px solid var(--line);border-bottom:none;background:#ffffffd9;padding:12px 18px;font:inherit;font-weight:600;color:var(--muted);cursor:default}.members-tab.is-active{background:#ffffffd9;color:var(--ink)}.members-course-section{padding:24px 26px}.members-course-roadmap{min-width:0;padding:18px;border:1px solid rgba(141,108,59,.16);border-radius:var(--radius-xl);background:radial-gradient(circle at 8% 12%,rgba(222,128,54,.12),transparent 28%),radial-gradient(circle at 92% 8%,rgba(216,194,143,.2),transparent 24%),var(--surface);box-shadow:var(--shadow)}.members-course-roadmap-head{display:flex;align-items:end;justify-content:space-between;gap:24px;padding:4px 6px 16px}.members-course-roadmap-kicker{display:block;margin-bottom:4px;color:#c85a28;font-size:.75rem;font-weight:700;letter-spacing:.12em}.members-course-roadmap-head h2{margin:0;font-family:Fraunces,"Source Han Serif SC",serif;font-size:1.35rem;letter-spacing:-.03em}.members-course-roadmap-head p{max-width:760px;margin:4px 0 0;color:var(--muted)}.members-course-roadmap-hint{flex:0 0 auto;padding:7px 11px;border:1px solid rgba(200,90,40,.2);border-radius:999px;background:#ffffffd9;color:#a94820;font-size:.82rem;font-weight:700}.members-course-roadmap-hint-mobile{display:none}.members-course-roadmap-figure{width:100%;max-width:100%;margin:0;padding:6px;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:#fff}.members-course-roadmap-figure img{display:block;width:100%;height:auto;border-radius:12px;cursor:zoom-in;transition:transform .18s ease,filter .18s ease}.members-course-roadmap-figure img:hover{filter:saturate(1.03) contrast(1.01);transform:scale(1.003)}.members-course-roadmap-figure img:focus-visible{outline:3px solid rgba(200,90,40,.34);outline-offset:3px}.members-chapter-knowledge-map{padding:18px;border:1px solid var(--line);border-radius:var(--radius-xl);background:radial-gradient(circle at 92% 8%,rgba(216,194,143,.22),transparent 26%),var(--surface);box-shadow:var(--shadow)}.members-chapter-knowledge-map-head{display:flex;align-items:end;justify-content:space-between;gap:24px;padding:4px 6px 16px}.members-chapter-knowledge-map-kicker{display:block;margin-bottom:4px;color:var(--brand-2);font-size:.75rem;font-weight:700;letter-spacing:.12em}.members-chapter-knowledge-map-head h2{margin:0;font-family:Fraunces,"Source Han Serif SC",serif;font-size:1.35rem;letter-spacing:-.03em}.members-chapter-knowledge-map-head p{margin:4px 0 0;color:var(--muted)}.members-chapter-knowledge-map-hint{flex:0 0 auto;padding:7px 11px;border:1px solid rgba(141,108,59,.16);border-radius:999px;background:#ffffffd9;color:var(--brand-2);font-size:.82rem;font-weight:700}.members-chapter-knowledge-map-figure{margin:0;padding:6px;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:#fff}.members-chapter-knowledge-map-figure img{display:block;width:100%;height:auto;border-radius:12px;cursor:zoom-in;transition:transform .18s ease,filter .18s ease}.members-chapter-knowledge-map-figure img:hover{filter:saturate(1.03) contrast(1.01);transform:scale(1.003)}.members-chapter-knowledge-map-figure img:focus-visible{outline:3px solid rgba(41,88,67,.35);outline-offset:3px}.members-course-section-head{display:grid;gap:6px;margin-bottom:18px}.members-course-section-head h2,.members-lesson-outline-head strong{margin:0;font-size:1.15rem}.members-course-section-head p,.members-lesson-outline-head span{margin:0;color:var(--muted)}.members-curriculum-list,.members-upcoming-list{display:grid}.members-curriculum-row{display:grid;grid-template-columns:64px minmax(0,1fr) auto auto;gap:16px;align-items:center;padding:18px 0;border-top:1px solid rgba(31,42,36,.1);color:inherit;text-decoration:none;transition:background .16s ease,color .16s ease}.members-curriculum-row:last-child{border-bottom:1px solid rgba(31,42,36,.1)}.members-curriculum-row[href]:hover{background:#ffffffd9}.members-curriculum-row.is-current{color:var(--ink)}.members-curriculum-row.is-locked{opacity:.62}.members-curriculum-index{font-size:.9rem;font-weight:700;color:var(--muted)}.members-curriculum-copy strong{display:block;margin-bottom:4px;font-size:1.05rem}.members-curriculum-copy p{margin:0;color:var(--muted);font-size:.94rem}.members-curriculum-meta{display:grid;justify-items:end;gap:6px;color:var(--muted);font-size:.9rem}.members-row-state{padding:6px 10px;border-radius:999px;font-size:.82rem;font-weight:700}.members-row-state-incomplete{background:#dc643c1f;color:#c85a28}.members-row-state-completed{background:linear-gradient(135deg,#29584326,#2d6a4f14);color:var(--brand)}.members-row-state-locked{background:#94a3b826;color:#64748b}.members-row-link{display:none}.members-upcoming-card{padding:18px 20px;margin-top:12px}.members-upcoming-card strong{display:block;margin-bottom:6px}.members-upcoming-card p{margin:0;color:var(--muted)}[data-tab-panel][hidden]{display:none!important}.members-profile-card-shell{padding:32px}.profile-avatar-section{display:flex;flex-direction:column;align-items:center;margin-bottom:28px;padding-bottom:24px;border-bottom:1px solid var(--line)}.profile-avatar-wrapper{position:relative;width:96px;height:96px;border-radius:50%;overflow:hidden;cursor:pointer}.profile-avatar{width:100%;height:100%;object-fit:cover;transition:filter .2s}.profile-avatar-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#1f2a2499;opacity:0;transition:opacity .2s;cursor:pointer}.profile-avatar-wrapper:hover .profile-avatar-overlay{opacity:1}.profile-avatar-wrapper:hover .profile-avatar{filter:brightness(.8)}.profile-avatar-hint{color:#fff;font-size:13px;font-weight:500}.profile-avatar-overlay.uploading{opacity:1}.profile-avatar-overlay.uploading .profile-avatar-hint:after{content:"上传中..."}.profile-avatar-overlay.uploading .profile-avatar-hint{font-size:0}.profile-avatar-overlay.uploading .profile-avatar-hint:after{font-size:13px}.profile-avatar-tip{margin:12px 0 0;font-size:13px;color:var(--muted)}.profile-avatar-section .form-error{margin-top:8px}.achievements-page-shell{width:min(1120px,100%);margin:0 auto}.achievements-hero{position:relative;isolation:isolate;display:grid;grid-template-columns:minmax(0,1fr) minmax(250px,.46fr);gap:44px;align-items:end;overflow:hidden;padding:48px;border-radius:28px;background:var(--brand);color:#fff;box-shadow:0 24px 60px #0000001f}.achievements-hero:before,.achievements-hero:after{content:"";position:absolute;z-index:-1;border:1px solid rgba(255,255,255,.1);border-radius:50%}.achievements-hero:before{width:290px;height:290px;top:-165px;left:42%}.achievements-hero:after{width:430px;height:430px;right:-215px;bottom:-280px}.achievements-hero-copy,.achievement-summary{position:relative;z-index:1}.achievements-eyebrow{display:block;color:#e1bd6e;font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase}.achievements-hero h1{margin:14px 0 13px;font-family:Fraunces,"Source Han Serif SC",serif;font-size:clamp(2.5rem,5vw,4.5rem);line-height:.96;letter-spacing:-.05em}.achievements-hero-copy p{max-width:34ch;margin:0;color:#ffffffe0;font-size:1rem}.achievement-summary{padding:22px 24px;border:1px solid rgba(255,255,255,.14);border-radius:18px;background:#102a1f61;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.achievement-summary-number{display:flex;align-items:baseline;gap:7px}.achievement-summary-number strong{font-family:Fraunces,"Source Han Serif SC",serif;font-size:2.8rem;line-height:1}.achievement-summary-number span{color:#fff9;font-weight:700}.achievement-summary>span{display:block;margin-top:4px;font-size:.82rem;font-weight:600}.achievement-progress{height:5px;margin:16px 0 9px;overflow:hidden;border-radius:999px;background:#ffffff26}.achievement-progress span{display:block;height:100%;border-radius:inherit;background:#e1bd6e;transition:width .36s cubic-bezier(.22,1,.36,1)}.achievement-summary small{color:#ffffff94;font-size:.72rem}.achievements-collection-head{display:flex;align-items:end;justify-content:space-between;gap:32px;padding:48px 6px 20px}.achievements-collection-head h2{margin:8px 0 0;font-family:Fraunces,"Source Han Serif SC",serif;font-size:clamp(1.7rem,3vw,2.25rem);letter-spacing:-.035em}.achievements-collection-head p{max-width:42ch;margin:0;color:var(--muted);font-size:.86rem;line-height:1.6;text-align:right}.achievement-groups{display:grid;gap:20px}.achievement-group{overflow:hidden;border:1px solid rgba(31,42,36,.09);border-radius:22px;background:#ffffffe0;box-shadow:0 12px 34px #1f2a240f}.achievement-group-head{display:flex;align-items:baseline;justify-content:space-between;gap:24px;padding:20px 26px 17px;border-bottom:1px solid var(--line)}.achievement-group-head h3{margin:0;color:var(--ink);font-size:1rem;letter-spacing:-.01em}.achievement-group-head span{color:var(--muted);font-size:.78rem}.achievement-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.achievement-group--expression .achievement-list{grid-template-columns:repeat(2,minmax(0,1fr))}.achievement-item{position:relative;display:flex;flex-direction:column;align-items:center;min-width:0;min-height:270px;padding:25px 18px 22px;text-align:center}.achievement-item+.achievement-item{border-left:1px solid rgba(31,42,36,.07)}.achievement-icon-wrap{position:relative;flex:0 0 128px;width:116px;height:128px}.achievement-icon-wrap:after{content:"";position:absolute;right:5px;bottom:7px;left:5px;z-index:-1;height:1px;background:#1f2a241a}.achievement-badge{display:block;width:116px;height:128px;overflow:visible;transition:transform .24s cubic-bezier(.22,1,.36,1),filter .22s ease,opacity .22s ease}.achievement-count-disc text{font-family:Public Sans,sans-serif}.achievement-item.is-locked .achievement-badge{filter:grayscale(1) saturate(.08) contrast(.84) brightness(1.1);opacity:.54}.achievement-item.is-unlocked:hover .achievement-badge{transform:translateY(-4px) rotate(-1deg);filter:saturate(1.06)}.achievement-copy{min-width:0}.achievement-copy h4{margin:5px 0 0;color:var(--ink);font-size:1rem;line-height:1.3}.achievement-copy p{margin:6px 0 11px;color:var(--muted);font-size:.79rem;line-height:1.45}.achievement-state{display:inline-flex;align-items:center;gap:5px;min-height:24px;padding:4px 9px;border:1px solid var(--line);border-radius:999px;background:#1f2a2409;color:#727973;font-size:.7rem;font-weight:700}.is-unlocked .achievement-state{border-color:#2d6a4f1a;background:#2d6a4f14;color:#2d6a4f}.achievement-state-check{display:grid;place-items:center;width:14px;height:14px;border-radius:50%;background:#397158;color:#fff;font-size:.58rem}.achievements-page-loading,.achievements-page-error{display:flex;align-items:center;justify-content:center;min-height:320px;border:1px solid var(--line);border-radius:24px;background:#ffffffe0;color:var(--muted);font-size:.9rem}.achievements-page-error{flex-direction:column;gap:10px}.achievements-page-error button{padding:0;border:0;background:none;color:var(--brand);font:inherit;font-weight:700;cursor:pointer;text-decoration:underline;text-underline-offset:3px}@media(max-width:820px){.achievements-hero{grid-template-columns:1fr;gap:28px;padding:38px}.achievement-summary{max-width:340px}.achievement-list{grid-template-columns:repeat(2,minmax(0,1fr))}.achievement-item:nth-child(3){border-top:1px solid rgba(31,42,36,.07);border-left:0}}@media(max-width:580px){.achievements-hero{padding:30px 24px;border-radius:22px}.achievements-hero h1{font-size:2.65rem}.achievements-collection-head{display:block;padding-top:38px}.achievements-collection-head p{margin-top:10px;text-align:left}.achievement-group-head{display:block;padding:18px 20px 15px}.achievement-group-head span{display:block;margin-top:4px}.achievement-list,.achievement-group--expression .achievement-list{grid-template-columns:1fr}.achievement-item{min-height:0;padding:22px 18px 20px}.achievement-item+.achievement-item,.achievement-item:nth-child(3){border-top:1px solid rgba(31,42,36,.07);border-left:0}}@media(prefers-reduced-motion:reduce){.achievement-progress span,.achievement-badge{transition:none}.achievement-item.is-unlocked:hover .achievement-badge{transform:none}}.members-profile-card-shell h1{margin:12px 0 28px;font-family:Fraunces,"Source Han Serif SC",serif;font-size:clamp(2.2rem,4vw,3.2rem);line-height:1.02}.members-profile-card-shell{max-width:760px;margin:0 auto}.profile-sections{display:grid;gap:20px}.profile-section{padding-top:24px;border-top:1px solid var(--line)}.profile-section-title{margin:0 0 4px;font-size:1.08rem;font-weight:700;letter-spacing:.01em;color:var(--ink)}.profile-security-link{display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:14px;align-items:center;padding:18px 4px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);transition:color .16s ease,background .16s ease}.profile-security-link:hover{color:var(--brand);background:#29584309}.profile-security-icon{display:grid;width:42px;height:42px;place-items:center;border-radius:13px;background:#2958431a;color:var(--brand)}.profile-security-icon svg{width:22px;height:22px}.profile-security-link strong,.profile-security-link small{display:block}.profile-security-link small{margin-top:2px;color:var(--muted);font-size:.86rem}.profile-security-arrow{color:var(--muted);font-size:1.8rem;line-height:1}.members-password-card{width:min(560px,100%);margin:0 auto;padding:32px;border:1px solid var(--line);border-radius:var(--radius-xl);background:var(--surface);box-shadow:var(--shadow)}.members-password-card h1{margin:12px 0 8px;font-family:Fraunces,"Source Han Serif SC",serif;font-size:clamp(2.2rem,4vw,3.2rem);line-height:1.02}.profile-back-link{display:inline-flex;margin-bottom:28px;color:var(--muted);font-size:.92rem;font-weight:600}.profile-back-link:hover{color:var(--brand)}.profile-cohort-row{display:flex;align-items:center;gap:10px;padding:6px 0}.profile-cohort-label{font-size:.875rem;color:var(--muted);min-width:5em}.profile-cohort-value{font-size:.875rem;color:var(--text);font-weight:500}.members-dashboard-grid{display:grid;gap:22px}.members-panel{padding:28px 30px}.members-panel-highlight{background:radial-gradient(circle at top right,rgba(216,194,143,.22),transparent 28%),#ffffffd9}.members-panel-title{margin:12px 0 16px;font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.06}.members-status-row,.members-entry-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.members-course-list{display:grid;gap:16px}.members-course-card{padding:22px;border:1px solid rgba(31,42,36,.1);border-radius:var(--radius-lg);background:#ffffffe0}.members-course-card-locked{opacity:.74;background:#efe7d894}.members-course-card h3{margin:10px 0;font-size:1.28rem}.members-course-card p{margin-bottom:16px}.members-course-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted);font-size:.9rem}.members-course-status{display:inline-flex;align-items:center;justify-content:center;padding:6px 10px;border-radius:999px;background:#2d6a4f1a;color:var(--brand);font-weight:700}.members-course-status-locked{background:#59655d1f;color:var(--muted)}.members-entry-card{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(260px,.95fr);gap:24px;padding:32px}.members-entry-copy .section-title{margin:10px 0 14px}.members-entry-copy .section-copy{margin:0;max-width:60ch}.members-entry-actions{display:grid;align-content:start;gap:16px}.members-entry-state{display:grid;gap:6px;padding:18px 18px 20px;border-radius:var(--radius-lg);background:#ffffffe0;border:1px solid var(--line)}.members-entry-state span{color:var(--muted)}.members-lesson-page{min-height:calc(100vh - 80px)}.members-lesson-shell{display:grid;grid-template-columns:300px minmax(0,1fr);min-height:calc(100vh - 80px)}.members-course-sidebar{position:sticky;top:72px;height:calc(100vh - 72px);overflow-y:auto;overscroll-behavior-y:contain;scrollbar-gutter:stable;border-radius:0;border-left:none;border-top:none;border-bottom:none;box-shadow:none;background:#f0ebe1b8}.members-course-sidebar-inner{display:grid;gap:18px;padding:22px 20px 28px}.members-course-sidebar-head{display:grid;gap:8px}.members-sidebar-breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:.88rem}.members-breadcrumb-link{color:var(--muted);text-decoration:none;transition:color .15s ease}.members-breadcrumb-link:hover{color:var(--primary);text-decoration:underline;text-underline-offset:.16em}.members-breadcrumb-sep{color:var(--muted);opacity:.5}.members-sidebar-brand{font-family:Fraunces,serif;font-size:1.3rem;font-weight:700}.members-sidebar-overview{color:var(--muted);text-decoration:underline;text-underline-offset:.16em}.members-sidebar-progress{display:grid;gap:8px;color:var(--muted);font-size:.92rem}.members-sidebar-list{display:grid}.members-sidebar-link{display:grid;grid-template-columns:34px minmax(0,1fr);gap:10px;align-items:start;padding:11px 0;border-top:1px solid rgba(31,42,36,.1);color:var(--muted)}.members-sidebar-link:last-child{border-bottom:1px solid rgba(31,42,36,.1)}.members-sidebar-link.is-current{color:var(--ink);font-weight:700}.members-sidebar-link-index{font-size:.82rem;color:var(--muted)}.members-lesson-main{background:#fffcf6bd}.members-lesson-container{padding:48px 40px 72px;max-width:980px}.members-lesson-header{display:grid;gap:14px;padding-bottom:24px;border-bottom:1px solid rgba(31,42,36,.1)}.members-lesson-topline,.members-lesson-progress{display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--muted);font-size:.94rem}.members-lesson-progress .members-progress-bar{flex:1;max-width:320px;height:8px}.members-lesson-outline{margin-top:26px;padding:20px 22px}.members-lesson-outline-head{display:grid;gap:4px;margin-bottom:12px}.members-lesson-outline-list .lesson-toc-nav{gap:0}.members-lesson-outline-list .lesson-toc-link{padding:12px 0}.members-lesson-article{padding-top:34px;max-width:74ch}.members-lesson-footer-nav{margin-top:36px;padding-top:24px;border-top:1px solid rgba(31,42,36,.1)}.members-footer-nav-inner{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}.members-login-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.9fr);gap:24px;align-items:start}.members-login-copy{padding:32px}.members-login-notes{display:grid;gap:14px;margin-top:22px}.members-note{display:grid;gap:4px;padding:16px 18px;border-radius:var(--radius-md);background:#ffffffe0;border:1px solid var(--line)}.members-note span{color:var(--muted)}.members-form-card{padding:28px}.members-form-head h2{margin:12px 0 10px;font-size:2rem;line-height:1.04}.members-form{display:grid;gap:14px;margin-top:22px}.members-form label{display:grid;gap:8px;font-weight:600}.members-form input,.members-form select{width:100%;border:1px solid rgba(31,42,36,.14);border-radius:16px;padding:14px 16px;font:inherit;color:var(--ink);background:#ffffffd9}.members-form input:focus,.members-form select:focus{outline:2px solid rgba(45,106,79,.15);border-color:#29584359}.form-hint,.form-error,.form-success{margin:0;font-size:.92rem}.form-hint{color:var(--muted)}.form-error{color:#8a2a2a;font-weight:700}.form-success{color:var(--brand);font-weight:700}.lesson-markdown ul,.lesson-markdown ol{padding-left:20px}.lesson-markdown li+li{margin-top:8px}.lesson-markdown a:not(.button){color:var(--brand);text-decoration:underline;text-underline-offset:.18em}.lesson-markdown code{font-family:JetBrains Mono,SF Mono,Monaco,Consolas,monospace;font-size:.88em;background:#f3f0ea;border:1px solid #e8e4dc;padding:.14em .42em;border-radius:5px;color:var(--ink)}.code-block{margin:18px 0;border-radius:var(--radius-md);overflow:hidden;background:#1e1e1e;border:1px solid #333}.code-block-header{display:flex;align-items:center;justify-content:space-between;padding:9px 16px;background:#2a2a2a;border-bottom:1px solid #3a3a3a}.code-block-lang{font-family:Inter,PingFang SC,sans-serif;font-size:.7rem;font-weight:600;color:#999;letter-spacing:.04em;text-transform:uppercase}.code-block pre{margin:0;padding:16px 20px;overflow:auto;background:transparent;border:none;border-radius:0;box-shadow:none}.code-block pre code{display:block;padding:0;background:transparent;color:#e2e2e2;border:none;border-radius:0;line-height:1.7;font-size:.85rem}.terminal-block{margin:18px 0;border-radius:var(--radius-md);overflow:hidden;background:#0d1117;border:1px solid #30363d}.terminal-header{display:flex;align-items:center;gap:8px;padding:10px 16px;background:#161b22;border-bottom:1px solid #30363d}.terminal-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.terminal-dot-r{background:#ff5f56}.terminal-dot-y{background:#ffbd2e}.terminal-dot-g{background:#27c93f}.terminal-title{font-family:Inter,PingFang SC,sans-serif;font-size:.72rem;color:#8b949e;margin-left:4px}.terminal-block pre{margin:0;padding:16px 20px;overflow:auto;background:transparent;border:none;border-radius:0;box-shadow:none}.terminal-block pre code{display:block;padding:0;background:transparent;color:#c9d1d9;border:none;border-radius:0;line-height:1.7;font-size:.84rem;font-family:JetBrains Mono,SF Mono,Monaco,Consolas,monospace}.lesson-markdown>pre,.lesson-markdown>.code-block{margin:18px 0}.lesson-markdown blockquote{padding:16px 20px;margin:18px 0;border-left:3px solid var(--brand);border-radius:0 var(--radius-md) var(--radius-md) 0;background:var(--brand-light);color:var(--ink);font-style:italic}.lesson-markdown hr{margin:28px 0;border:0;border-top:1px solid var(--line)}.lesson-markdown table{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;background:var(--surface);box-shadow:var(--shadow-sm)}.lesson-markdown th,.lesson-markdown td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.lesson-markdown thead th{background:#f7f5f1;font-size:.85rem;font-weight:700;color:var(--muted)}.lesson-markdown tbody tr:last-child th,.lesson-markdown tbody tr:last-child td{border-bottom:0}.lesson-markdown img{display:block;width:min(860px,calc(100vw - 96px));max-width:none;height:auto;margin:28px auto;position:relative;left:50%;transform:translate(-50%);border-radius:10px;box-shadow:0 4px 20px #1f2a241a;cursor:zoom-in}.lesson-video{margin:28px 0}.lesson-video video{display:block;width:100%;max-height:min(72vh,720px);border-radius:12px;background:#101613;box-shadow:0 14px 36px #1f2a2429}.lesson-video figcaption{margin-top:10px;color:var(--muted);font-size:.875rem;line-height:1.6;text-align:center}.members-lesson-article[aria-busy=true]{min-height:240px;color:var(--muted)}.lesson-content-error{padding:20px;border:1px solid #fecaca;border-radius:12px;background:#fff7f7;color:#7f1d1d}.lesson-content-error strong,.lesson-content-error p{display:block;margin:0 0 12px}.image-lightbox{position:fixed;inset:0;z-index:1200;display:grid;place-items:center;padding:24px;background:#101613e0}.image-lightbox[hidden]{display:none}.image-lightbox-backdrop{position:absolute;inset:0}.image-lightbox-content{position:relative;z-index:1;max-width:min(1100px,calc(100vw - 48px));max-height:calc(100vh - 48px);display:grid;gap:12px;justify-items:center}.image-lightbox-content img{display:block;max-width:100%;max-height:calc(100vh - 110px);border-radius:14px;box-shadow:0 24px 80px #00000059}.image-lightbox-caption{color:#ffffffd9;font-size:.95rem;text-align:center}.image-lightbox-close{position:absolute;top:18px;right:18px;z-index:2;width:42px;height:42px;border:0;border-radius:999px;background:#fffbf424;color:#fff;font-size:1.6rem;line-height:1;cursor:pointer}.image-lightbox-close:hover{background:#ffffffb8}.faq-detail-page{max-width:820px;margin:40px auto 80px;display:grid;gap:24px}.faq-detail-header{display:grid;gap:14px;padding:28px 30px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(135deg,#ffffffd9,#f6f1e8d1),radial-gradient(circle at 90% 10%,rgba(216,194,143,.24),transparent 32%);box-shadow:0 18px 45px #31332914}.faq-detail-header .members-breadcrumb{margin:0;font-size:.88rem;color:var(--muted)}.faq-detail-header .eyebrow{margin:0}.faq-detail-header h1{margin:0;font-family:Fraunces,"Source Han Serif SC",serif;font-size:clamp(2rem,5vw,3rem);line-height:1.06;letter-spacing:-.03em}.faq-detail-header .members-lead{margin:0;font-size:1.05rem;color:var(--muted);line-height:1.6;max-width:62ch}.faq-back-link{width:fit-content;margin-top:4px}.faq-detail-body{padding:40px 44px;background:#ffffffd9;border:1px solid rgba(31,42,36,.09);border-radius:24px;box-shadow:0 14px 34px #1f2a2412}.faq-detail-body.lesson-markdown h1,.faq-detail-body.lesson-markdown h2{margin-top:40px;font-size:clamp(1.3rem,2.5vw,1.65rem);line-height:1.25;letter-spacing:-.01em}.faq-detail-body.lesson-markdown h3{font-size:1.2rem}@media(max-width:600px){.faq-detail-page{margin:22px auto 48px;gap:16px}.faq-detail-header,.faq-detail-body{padding:22px 18px;border-radius:18px}}.md-callout{margin-top:18px}.md-actions{margin-top:24px}.content-block{padding:22px 0;border-top:1px solid var(--line)}.content-block:first-child{border-top:0;padding-top:0}.content-block ul{padding-left:20px;margin:12px 0 0}.callout{margin-top:16px;border:1px solid #b8dfca;background:var(--brand-light);border-radius:var(--radius-md);padding:18px 20px}.callout-title{font-size:1rem;font-weight:700;margin:0 0 8px;color:var(--brand)}.step-kicker,.lesson-card-tag{color:var(--brand);font-size:.82rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.lesson-marker{width:52px;height:52px;font-size:1rem;color:#fff;background:linear-gradient(135deg,#2d6a4f,#2d6a4f);border:0;box-shadow:0 14px 28px #2d6a4f38}.lesson-callout-strong{border-color:#2d6a4f38;background:linear-gradient(180deg,#ebf5efe6,#fbf9f1f5)}.provider-spotlight{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);gap:18px;margin-top:18px}.provider-primary,.provider-secondary,.task-hero,.troubleshoot-strip{border:1px solid var(--line);border-radius:var(--radius-xl);background:#ffffffd9;box-shadow:var(--shadow)}.provider-primary{padding:24px;text-align:left;background:radial-gradient(circle at right top,rgba(216,194,143,.22),transparent 38%),#ffffffd9}.provider-secondary{padding:24px}.provider-secondary-title{font-weight:700;margin-bottom:14px}.provider-link-list{display:grid;gap:12px;margin-bottom:14px}.task-hero{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:22px;padding:24px;margin-top:18px;border-color:#2d6a4f33;background:radial-gradient(circle at right bottom,rgba(45,106,79,.16),transparent 34%),linear-gradient(180deg,#f4efe3db,#fdf9f1f5)}.task-hero.md-task{grid-template-columns:minmax(0,1fr);gap:0}.task-hero-copy h4{font-size:1.32rem;margin:8px 0 14px}.task-action-list{margin:0;padding-left:20px}.task-action-list li+li{margin-top:10px}.task-hero-actions{display:grid;align-content:center;gap:12px}.task-hero-actions .button{width:100%}.task-proof{margin-top:16px;grid-template-columns:repeat(2,minmax(0,1fr))}.troubleshoot-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;overflow:hidden}.troubleshoot-item{padding:18px 20px}.troubleshoot-item+.troubleshoot-item{border-left:1px solid var(--line)}.troubleshoot-item strong{display:block;margin-bottom:6px}.troubleshoot-item span{color:var(--muted)}.lesson-card-grid,.task-card-grid{margin-top:18px}.lesson-card,.task-card{text-align:left}.lesson-card h4,.task-card h4{margin-top:8px}.lesson-card .button,.task-card .button{margin-top:16px}.lesson-card-left{text-align:left}.mini-checklist{margin-top:18px}.mini-checklist li+li,.task-card li+li{margin-top:8px}.ide-definition-callout{margin-top:18px}.ide-role-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:18px}.ide-role-card{border:1px solid var(--line);border-radius:20px;padding:20px;background:linear-gradient(180deg,#ffffffd9,#f7f5f1d9),linear-gradient(135deg,rgba(41,88,67,.04),transparent);box-shadow:var(--shadow)}.ide-role-card h4{margin:0 0 8px}.comparison-intro{max-width:68ch}.tool-comparison-wrap{margin-top:18px;border:1px solid var(--line);border-radius:24px;overflow:auto;background:#ffffffd9;box-shadow:var(--shadow)}.tool-comparison-table{width:100%;min-width:680px;border-collapse:collapse}.tool-comparison-table th,.tool-comparison-table td{padding:16px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.tool-comparison-table thead th{background:#2d6a4f14;font-size:.95rem}.tool-comparison-table tbody th{width:21%;background:#d8c28f1f;font-size:.95rem}.tool-comparison-table tbody tr:last-child th,.tool-comparison-table tbody tr:last-child td{border-bottom:0}.resource-duo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:18px}.resource-guide-card{display:grid;align-content:start;gap:12px;padding:24px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(180deg,#ffffffd9,#f7f5f1d9),linear-gradient(135deg,rgba(41,88,67,.04),transparent);box-shadow:var(--shadow)}.resource-guide-card h4{margin:0;font-size:1.3rem;letter-spacing:-.03em}.resource-guide-card .button{margin-top:4px;width:fit-content}.resource-guide-card-video{background:linear-gradient(180deg,#2d6a4f14,#ffffffd9),linear-gradient(135deg,rgba(216,194,143,.18),transparent)}.video-link-note{color:var(--brand);font-size:.92rem;font-weight:700}@media(max-width:960px){.provider-spotlight,.task-hero,.lesson-overview,.task-proof,.troubleshoot-strip,.ide-role-grid,.resource-duo-grid{grid-template-columns:1fr}.lesson-markdown table{display:block;overflow-x:auto}.troubleshoot-item+.troubleshoot-item{border-left:0;border-top:1px solid var(--line)}}.lesson-actions{margin-top:28px;grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),1fr))}.lesson-actions .button{width:100%}.lesson-row .lesson-content strong{display:block;margin-bottom:4px;font-size:.95rem;color:var(--ink)}.lesson-row .lesson-content p{margin:0;font-size:.88rem;color:var(--muted)}.breadcrumb{display:flex;flex-wrap:wrap;gap:10px;color:var(--muted);font-size:.92rem}.inline-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.inline-badges span{display:inline-flex;align-items:center;min-height:28px;padding:5px 10px;border:1px solid var(--line);border-radius:999px;background:#ffffffd9;color:var(--muted);font-size:.82rem;font-weight:700}#hackathon [data-hackathon-section]{justify-self:stretch;width:100%}.hackathon-preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:28px}.hackathon-preview-card{background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden;text-decoration:none;color:inherit;transition:transform .2s ease,box-shadow .2s ease;display:block}.hackathon-preview-card:hover{transform:translateY(-4px);box-shadow:0 24px 72px #31332924}.hackathon-preview-cover{width:100%;aspect-ratio:16 / 9;background:var(--bg-alt);display:flex;align-items:center;justify-content:center;overflow:hidden}.hackathon-preview-cover img,.hackathon-preview-cover video{width:100%;height:100%}.hackathon-preview-cover img{object-fit:contain}.hackathon-preview-cover video{object-fit:cover;pointer-events:none}.hackathon-cover-placeholder{font-family:Fraunces,serif;font-size:3rem;font-weight:700;color:var(--brand);opacity:.3}.hackathon-preview-body{padding:16px 20px 20px}.hackathon-preview-body h3{font-family:Fraunces,serif;font-size:1.15rem;font-weight:600;color:var(--ink);margin:0 0 6px;line-height:1.35}.hackathon-preview-name{font-size:.85rem;color:var(--brand);font-weight:500;margin:0 0 4px}.hackathon-preview-desc{font-size:.88rem;color:var(--muted);margin:0 0 10px;line-height:1.5}.hackathon-preview-votes{font-size:.82rem;color:var(--brand-2);font-weight:500}.hackathon-preview-actions{text-align:center}.hackathon-page{padding:40px 0 80px}.hackathon-hero{text-align:center;padding:40px 0 48px}.hackathon-hero-content{max-width:640px;margin:0 auto}.hackathon-hero .eyebrow{display:inline-block;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--brand);margin-bottom:12px}.hackathon-hero h1{font-family:Fraunces,serif;font-size:2.5rem;font-weight:700;color:var(--ink);margin:0 0 12px;line-height:1.2}.hackathon-hero-lead{font-size:1.05rem;color:var(--muted);line-height:1.6;margin:0 0 20px}.hackathon-hero-stats{display:flex;gap:16px;justify-content:center;align-items:center;font-size:.9rem;color:var(--muted)}.hackathon-hero-voted{background:var(--brand);color:#fff;padding:3px 12px;border-radius:20px;font-size:.82rem;font-weight:500}.hackathon-list-section{max-width:var(--max);margin:0 auto;padding:0 16px}.hackathon-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.hackathon-card{background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease;cursor:pointer}.hackathon-card:hover{transform:translateY(-4px);box-shadow:0 24px 72px #31332924}.hackathon-card-cover{width:100%;aspect-ratio:16 / 9;background:var(--bg-alt);display:flex;align-items:center;justify-content:center;overflow:hidden;text-decoration:none}.hackathon-card-cover img,.hackathon-card-cover video{width:100%;height:100%}.hackathon-card-cover img{object-fit:contain}.hackathon-card-cover video{object-fit:cover;pointer-events:none}.hackathon-card-cover .hackathon-cover-placeholder{font-family:Fraunces,serif;font-size:3rem;font-weight:700;color:var(--brand);opacity:.3}.hackathon-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}.hackathon-card-body h3{font-family:Fraunces,serif;font-size:1.1rem;font-weight:600;margin:0 0 4px}.hackathon-card-body h3 a{color:var(--ink);text-decoration:none}.hackathon-card-body h3 a:hover{color:var(--brand)}.hackathon-card-name{font-size:.85rem;color:var(--brand);font-weight:500;margin:0 0 6px}.hackathon-card-desc{font-size:.88rem;color:var(--muted);line-height:1.5;margin:0 0 14px;flex:1}.hackathon-card-footer{display:flex;align-items:center;justify-content:space-between;gap:12px}.hackathon-card-vote{font-size:.88rem!important;padding:6px 18px!important}.hackathon-vote-panel{display:flex;align-items:center;gap:6px}.hackathon-vote-count{font-family:Fraunces,serif;font-size:1.3rem;font-weight:700;color:var(--brand-2)}.hackathon-vote-label{font-size:.82rem;color:var(--muted)}.hackathon-vote-voted-self{opacity:.7}.hackathon-detail{max-width:800px;margin:0 auto;padding:0 16px}.hackathon-detail-cover{width:100%;aspect-ratio:16 / 9;background:var(--bg-alt);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;overflow:hidden;margin-bottom:28px}.hackathon-detail-cover img,.hackathon-detail-cover video{width:100%;height:100%}.hackathon-detail-cover img{object-fit:contain}.hackathon-detail-cover video{object-fit:cover}.hackathon-detail-cover .hackathon-cover-placeholder{font-family:Fraunces,serif;font-size:5rem;font-weight:700;color:var(--brand);opacity:.2}.hackathon-detail-body{max-width:640px;margin:0 auto}.hackathon-breadcrumb{display:block;font-size:.85rem;color:var(--muted);text-decoration:none;margin-bottom:20px;transition:color .15s}.hackathon-breadcrumb:hover{color:var(--brand)}.hackathon-detail-header{margin-bottom:24px}.hackathon-detail-header .eyebrow{display:inline-block;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--brand);margin-bottom:10px}.hackathon-detail-header h1{font-family:Fraunces,serif;font-size:2rem;font-weight:700;color:var(--ink);margin:0 0 8px;line-height:1.2}.hackathon-detail-name{font-size:.95rem;color:var(--brand);font-weight:500;margin:0 0 12px}.hackathon-detail-desc{font-size:1rem;color:var(--muted);line-height:1.7;margin:0}.hackathon-detail-actions{margin-bottom:28px}.hackathon-detail-actions .hackathon-vote-panel{display:flex;align-items:center;gap:12px}.hackathon-detail-actions .hackathon-vote-count{font-size:2rem}.hackathon-detail-actions .hackathon-vote-label{font-size:.95rem}.hackathon-video{position:relative;width:100%;padding-bottom:56.25%;margin-bottom:24px;border-radius:var(--radius-md);overflow:hidden;background:#000}.hackathon-video iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}.hackathon-video-native{width:100%;margin-bottom:24px;border-radius:var(--radius-md);overflow:hidden;background:#000}.hackathon-video-native video{display:block;width:100%;height:auto;max-height:70vh}.hackathon-video-link{margin-bottom:24px}.hackathon-detail-link{margin-top:8px}.hackathon-detail-attachments{margin-top:28px;padding-top:24px;border-top:1px solid var(--border)}.hackathon-detail-attachments h3{font-size:1rem;font-weight:600;color:var(--ink);margin:0 0 14px}.hackathon-attachment-list{display:flex;flex-direction:column;gap:8px}.hackathon-attachment-item{display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--bg-alt);border-radius:var(--radius-md);text-decoration:none;color:var(--ink);font-size:.9rem;transition:background .15s,color .15s}.hackathon-attachment-item:hover{background:var(--brand);color:#fff}.hackathon-attachment-icon{flex-shrink:0;font-size:1.1rem}.hackathon-attachment-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.hackathon-attachment-size{flex-shrink:0;font-size:.8rem;opacity:.7}@media(max-width:960px){.hackathon-preview-grid,.hackathon-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.hackathon-preview-grid,.hackathon-grid{grid-template-columns:1fr}.hackathon-hero h1{font-size:2rem}.hackathon-detail-header h1{font-size:1.6rem}}.essay-layout{display:grid;gap:14px}.essay-section{padding:18px 0 8px}.essay-block{padding:28px;border:1px solid var(--line);border-radius:var(--radius-xl);background:#ffffffd9;box-shadow:var(--shadow)}.essay-block h3{margin:10px 0 12px;font-size:1.5rem;letter-spacing:-.03em}.essay-block p,.essay-block li{color:var(--muted)}.essay-block ul{margin:14px 0 0;padding-left:20px}.essay-block-wide{max-width:860px}.syllabus-shell{display:grid;gap:22px;max-width:980px}.syllabus-group{padding:20px 0 0;border-top:1px solid var(--line)}.syllabus-group:first-child{border-top:0;padding-top:0}.syllabus-label{margin-bottom:10px;color:var(--brand);font-weight:700;letter-spacing:.02em}.syllabus-row{display:grid;grid-template-columns:320px minmax(0,1fr);gap:18px;padding:14px 0;border-bottom:1px solid var(--line)}.syllabus-row:last-child{border-bottom:0}.syllabus-row span{font-weight:700}.syllabus-row small{color:var(--muted);font-size:.95rem}.curriculum-summary,.chapter-outline-grid{width:100%;max-width:980px}.curriculum-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-bottom:22px}.curriculum-metric{text-align:left}.curriculum-metric p{margin:12px 0 0}.chapter-outline-grid{display:grid;gap:18px}.chapter-outline-card{padding:28px;border-radius:var(--radius-xl);border:1px solid var(--line);box-shadow:var(--shadow)}.chapter-outline-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.chapter-outline-head h3{margin:8px 0 0;font-family:Fraunces,"Source Han Serif SC",serif;font-size:clamp(1.8rem,4vw,2.6rem);letter-spacing:-.04em;line-height:.98}.chapter-count{display:inline-flex;align-items:center;justify-content:center;min-width:72px;padding:8px 12px;border-radius:999px;border:1px solid rgba(31,42,36,.18);background:#ffffff70;font-size:.92rem;font-weight:700}.chapter-outline-copy{margin:14px 0 18px;max-width:54ch;color:#1f2a24d6}.lesson-outline,.chapter-link-row{display:grid;gap:10px}.lesson-outline-item{display:grid;grid-template-columns:52px minmax(0,1fr);gap:12px;align-items:center;padding:14px 16px;border-radius:16px;border:1px solid var(--line);background:#ffffffd9;transition:transform .18s ease,background .18s ease,border-color .18s ease}.lesson-outline-item:hover{transform:translateY(-1px);background:#ffffffd9;border-color:#1f2a242e}.lesson-index{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;border:1px solid rgba(31,42,36,.14);background:#fffaf2b3;font-size:.84rem;font-weight:700;color:var(--brand)}.chapter-link-row{margin-top:16px}.chapter-link-row .button{justify-self:start}.chapter-grid{display:grid;gap:22px;max-width:980px;width:100%}.chapter-card{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:center;min-height:240px;padding:34px 40px;border-radius:22px;border:1px solid var(--line);box-shadow:var(--shadow)}.chapter-card:hover{transform:translateY(-2px)}.chapter-mint{background:#c8d8d0}.chapter-lilac{background:#d9d5e8}.chapter-blue{background:#88a9d6}.chapter-sand{background:#e3d3b7}.chapter-copy h3{margin:0 0 14px;font-family:Fraunces,"Source Han Serif SC",serif;font-size:clamp(2rem,4vw,2.9rem);letter-spacing:-.04em;line-height:.98}.chapter-copy p{margin:0 0 20px;max-width:30ch;font-size:1.06rem;color:#1f2a24d6}.chapter-button{display:inline-flex;align-items:center;justify-content:center;min-width:108px;padding:10px 14px;border:1px solid rgba(31,42,36,.38);border-radius:10px;font-size:.92rem;background:#fffaf247}.chapter-art{position:relative;height:160px}.chapter-art span{position:absolute;display:block}.chapter-art-1 span:nth-child(1){right:34px;top:2px;width:122px;height:62px;border:4px solid rgba(24,26,24,.9);border-bottom-width:0;border-radius:2px}.chapter-art-1 span:nth-child(2){right:74px;top:22px;width:42px;height:56px;border:4px solid rgba(24,26,24,.9);border-top-width:0}.chapter-art-1 span:nth-child(3){right:36px;bottom:6px;width:120px;height:46px;background:#fffaf5e6;clip-path:polygon(30% 0,70% 0,100% 100%,0 100%)}.chapter-art-2 span:nth-child(1),.chapter-art-2 span:nth-child(2),.chapter-art-2 span:nth-child(3),.chapter-art-2 span:nth-child(4){width:62px;height:34px;border-top:4px solid rgba(24,26,24,.92);border-radius:999px 999px 0 0}.chapter-art-2 span:nth-child(1){right:88px;top:36px;transform:rotate(14deg)}.chapter-art-2 span:nth-child(2){right:26px;top:22px;transform:rotate(-28deg)}.chapter-art-2 span:nth-child(3){right:18px;bottom:28px;transform:rotate(-120deg)}.chapter-art-2 span:nth-child(4){right:102px;bottom:18px;transform:rotate(116deg)}.chapter-art-2:before,.chapter-art-2:after{content:"";position:absolute;background:#fffaf5f2}.chapter-art-2:before{right:82px;top:66px;width:72px;height:4px;transform:rotate(28deg)}.chapter-art-2:after{right:70px;top:82px;width:72px;height:4px;transform:rotate(-55deg);box-shadow:-36px 32px #fffaf5f2}.chapter-art-3 span:nth-child(1){left:20px;bottom:20px;width:2px;height:110px;background:#181a18eb}.chapter-art-3 span:nth-child(2){left:20px;bottom:20px;width:132px;height:2px;background:#181a18eb}.chapter-art-3 span:nth-child(3){left:44px;bottom:42px;width:98px;height:52px;border-bottom:4px solid rgba(255,250,245,.96);border-left:4px solid transparent;border-right:4px solid transparent;transform:skew(-28deg);box-shadow:0 -18px 0 -16px #fffaf5f5,40px -18px 0 -16px #fffaf5f5}.cta-band{width:100%;max-width:980px;text-align:center}.course-card ul{margin:14px 0 0;padding-left:20px;color:var(--muted)}@media(max-width:980px){.lesson-reader-shell,.page-grid,.grid-3,.grid-2,.audience-grid,.metrics-grid,.path-grid,.resource-grid,.curriculum-summary,.editorial-quotes,.syllabus-row,.timeline-step,.chapter-card{grid-template-columns:1fr}.timeline-shell{padding-left:0}.timeline-shell:before{display:none}.chapter-card{min-height:unset;padding:28px 26px}.chapter-art{height:120px}.chapter-outline-card{padding:24px}.lesson-sidebar-inner{position:static;padding-right:0;padding-bottom:24px;border-right:0;border-bottom:1px solid var(--line)}.lesson-article{padding-top:28px}.sidebar-panel{position:static}.header-row{flex-wrap:wrap;align-items:center;gap:14px 20px;padding:14px 0}.brand-mark{flex:1 1 220px}.header-nav{order:3;width:100%;padding-top:4px;justify-content:flex-start;gap:18px;flex-wrap:wrap}}@media(max-width:640px){.lesson-reader{padding-top:26px}.lesson-reader-header h1{margin-bottom:16px;font-size:clamp(1.5rem,7vw,1.9rem)}.lesson-sidebar-title{font-size:clamp(1.8rem,11vw,2.6rem)}.lesson-article{padding-top:24px}.lesson-toc-link{padding:12px 0;font-size:.95rem}.lesson-markdown h2{margin-top:50px;font-size:clamp(1.3rem,6vw,1.7rem)}.lesson-markdown h3{font-size:1.18rem}.hero{padding-top:56px}.hero-panel,.profile-card,.page-hero-shell,.article-panel,.sidebar-panel,.cta-band{padding:22px}.brand-icon{width:34px;height:34px;border-radius:12px}.brand-meta strong{font-size:.88rem}.header-nav{gap:12px 18px;font-size:.9rem}.header-cta{padding:9px 14px;font-size:.88rem}.lesson-actions{grid-template-columns:1fr}.tool-comparison-wrap{margin-right:-4px}.chapter-outline-head{flex-direction:column;align-items:flex-start}.lesson-outline-item{grid-template-columns:40px minmax(0,1fr);padding:12px 14px}.lesson-index{width:34px;height:34px;border-radius:10px}.footer-shell{flex-direction:column;align-items:flex-start}.members-footer .footer-shell{align-items:center}}.prompt-template{margin-top:18px;border:1px solid rgba(45,106,79,.15);border-radius:20px;background:linear-gradient(180deg,#f4efe3e6,#fdf9f1f5);overflow:hidden}.prompt-label{padding:10px 18px;border-bottom:1px solid rgba(45,106,79,.1);color:var(--brand);font-weight:700;font-size:.85rem;letter-spacing:.05em;text-transform:uppercase}.prompt-code{margin:0;padding:18px;font-family:SF Mono,Monaco,Inconsolata,Fira Code,monospace;font-size:.88rem;line-height:1.65;color:var(--ink);white-space:pre-wrap;word-break:break-word;background:transparent}.comparison-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:18px}.comparison-card{padding:20px;border:1px solid var(--line);border-radius:18px;background:#ffffffd9}.comparison-label{display:inline-block;padding:4px 12px;border-radius:999px;font-size:.8rem;font-weight:700;margin-bottom:12px}.comparison-label.before{background:#8d6c3b26;color:var(--brand-2)}.comparison-label.after{background:#29584326;color:var(--brand)}.comparison-card p{margin:0;color:var(--muted)}@media(max-width:640px){.comparison-grid{grid-template-columns:1fr}}.concept-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:20px}.concept-item{padding:18px;background:#ffffffd9;border:1px solid var(--line);border-radius:var(--radius-md)}.concept-item strong{display:block;margin-bottom:6px;color:var(--brand)}.concept-item p{margin:0;font-size:.92rem;color:var(--muted)}@media(max-width:640px){.concept-grid{grid-template-columns:1fr}}.code-example{margin:16px 0;padding:18px;background:#1e1e1e;border-radius:var(--radius-md);overflow-x:auto}.code-example code{display:block;color:#e8e4dc;font-family:SF Mono,Monaco,Inconsolata,monospace;font-size:.88rem;line-height:1.7;white-space:pre-wrap;word-break:break-word}.comparison-table{margin:20px 0;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden}.comparison-row{display:grid;grid-template-columns:1fr 1fr}.comparison-row:first-child{background:#2d6a4f14;font-weight:600}.comparison-row:not(:last-child){border-bottom:1px solid var(--line)}.comparison-cell{padding:12px 16px}.comparison-cell:first-child{border-right:1px solid var(--line)}.flow-diagram{margin:20px 0;display:flex;flex-direction:column;gap:8px}.flow-item{padding:12px 18px;background:#ffffffd9;border:1px solid var(--line);border-radius:var(--radius-sm);font-family:SF Mono,Monaco,monospace;font-size:.88rem}.flow-item.highlight{background:#2d6a4f1a;border-color:var(--brand);font-weight:600}.summary-table{margin:20px 0;overflow-x:auto}.summary-table table{width:100%;border-collapse:collapse;font-size:.92rem}.summary-table th,.summary-table td{padding:12px 14px;text-align:left;border:1px solid var(--line)}.summary-table th{background:#2d6a4f14;font-weight:600}.summary-table td:first-child{font-weight:500;color:var(--brand)}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:20px 0}.stat-item{padding:20px;background:#ffffffd9;border:1px solid var(--line);border-radius:var(--radius-md);text-align:center}.stat-number{display:block;font-size:2.2rem;font-weight:700;color:var(--brand);line-height:1.1}.stat-label{display:block;margin-top:8px;font-size:.88rem;color:var(--ink)}.stat-source{display:block;margin-top:6px;font-size:.75rem;color:var(--muted)}@media(max-width:768px){.stats-grid{grid-template-columns:1fr}}.comparison-scenarios{margin:20px 0;display:flex;flex-direction:column;gap:16px}.scenario{padding:18px;background:#ffffffd9;border:1px solid var(--line);border-radius:var(--radius-md)}.scenario-role{font-weight:700;color:var(--brand);margin-bottom:10px}.scenario-before,.scenario-after{font-size:.92rem;margin:4px 0}.scenario-before{color:var(--muted)}.scenario-after{color:var(--ink)}.mindset-comparison{margin:20px 0;display:flex;flex-direction:column;gap:12px}.mindset-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.mindset-old,.mindset-new{padding:14px 16px;border-radius:var(--radius-sm);font-size:.92rem;display:flex;align-items:flex-start;gap:10px}.mindset-old{background:#8d6c3b14;color:var(--muted);text-decoration:line-through;text-decoration-color:#8d6c3b66}.mindset-new{background:#2d6a4f14;color:var(--ink)}.mindset-icon{flex-shrink:0;font-weight:700}.mindset-old .mindset-icon{color:var(--brand-2)}.mindset-new .mindset-icon{color:var(--brand)}@media(max-width:768px){.mindset-row{grid-template-columns:1fr}}.skill-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:20px 0}.skill-card{padding:20px;background:#ffffffd9;border:1px solid var(--line);border-radius:var(--radius-md)}.skill-card h4{margin:0 0 12px;color:var(--brand);font-size:1rem}.skill-card ul{margin:0;padding-left:18px;font-size:.88rem;color:var(--muted)}.skill-card li{margin:6px 0}@media(max-width:768px){.skill-cards{grid-template-columns:1fr}}.timeline{margin:24px 0;padding-left:24px;border-left:3px solid var(--line)}.timeline-item{position:relative;padding:16px 0 16px 24px}.timeline-item:before{content:"";position:absolute;left:-30px;top:20px;width:12px;height:12px;border-radius:50%;background:var(--bg);border:3px solid var(--muted)}.timeline-item.highlight:before{border-color:var(--brand);background:var(--brand)}.timeline-year{display:inline-block;font-weight:700;color:var(--brand);margin-right:8px}.timeline-title{font-weight:600}.timeline-desc{display:block;margin-top:4px;font-size:.88rem;color:var(--muted)}.tools-comparison{margin:20px 0;overflow-x:auto}.tools-comparison table{width:100%;border-collapse:collapse;font-size:.92rem}.tools-comparison th,.tools-comparison td{padding:12px 14px;text-align:left;border:1px solid var(--line)}.tools-comparison th{background:#2d6a4f14;font-weight:600}.multi-agent-diagram{margin:24px 0;text-align:center}.agent-commander{display:inline-block;padding:14px 28px;background:#29584326;border:2px solid var(--brand);border-radius:var(--radius-md);font-weight:600;color:var(--brand);margin-bottom:16px}.agent-workers{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}.agent-worker{padding:14px 12px;background:#ffffffd9;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:.88rem}.agent-worker small{display:block;margin-top:4px;color:var(--muted);font-size:.78rem}.agent-output{display:inline-block;padding:14px 28px;background:var(--brand);color:#fff;border-radius:var(--radius-md);font-weight:600}@media(max-width:768px){.agent-workers{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.agent-workers{grid-template-columns:1fr}}.skills-shift{margin:20px 0;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden}.skills-shift-header{display:grid;grid-template-columns:1fr 1fr;background:#2d6a4f14;font-weight:600;font-size:.88rem}.skills-old-header,.skills-new-header{padding:12px 16px}.skills-old-header{border-right:1px solid var(--line);color:var(--muted)}.skills-new-header{color:var(--brand)}.skills-shift-row{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line)}.skills-old,.skills-new{padding:12px 16px;font-size:.92rem}.skills-old{border-right:1px solid var(--line);color:var(--muted);text-decoration:line-through;text-decoration-color:#8d6c3b4d}.skills-new{color:var(--ink)}.input-framework{margin:20px 0;display:flex;flex-direction:column;gap:16px}.framework-item{display:flex;gap:16px;padding:18px;background:#ffffffd9;border:1px solid var(--line);border-radius:var(--radius-md)}.framework-number{flex-shrink:0;width:32px;height:32px;display:grid;place-items:center;background:var(--brand);color:#fff;border-radius:50%;font-weight:700;font-size:.88rem}.framework-content strong{display:block;color:var(--ink);margin-bottom:4px}.framework-content p{margin:0;font-size:.92rem;color:var(--muted)}.example-comparison{margin:20px 0;display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.example-bad,.example-good{padding:18px;border-radius:var(--radius-md)}.example-bad{background:#8d6c3b14;border:1px solid rgba(141,108,59,.2)}.example-good{background:#2d6a4f14;border:1px solid rgba(41,88,67,.2)}.example-label{display:inline-block;padding:4px 10px;border-radius:999px;font-size:.75rem;font-weight:700;margin-bottom:12px}.example-bad .example-label{background:#8d6c3b33;color:var(--brand-2)}.example-good .example-label{background:#29584333;color:var(--brand)}.example-content{margin-bottom:12px}.example-content code{display:block;padding:12px;background:#1f2a240f;border-radius:var(--radius-sm);font-family:SF Mono,Monaco,monospace;font-size:.82rem;white-space:pre-wrap;word-break:break-word}.example-result{font-size:.88rem;color:var(--muted)}@media(max-width:768px){.example-comparison{grid-template-columns:1fr}}.tool-comparison{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:20px 0}.tool-type{padding:20px;background:#ffffffd9;border:1px solid var(--line);border-radius:var(--radius-md)}.tool-type h4{margin:0 0 12px;color:var(--brand)}.tool-type p{margin:6px 0;font-size:.92rem;color:var(--muted)}@media(max-width:768px){.tool-comparison{grid-template-columns:1fr}}.examples-list{margin:16px 0;padding:18px;background:#ffffffd9;border:1px solid var(--line);border-radius:var(--radius-md)}.examples-list p{margin:0 0 10px;font-weight:600}.examples-list ul{margin:0;padding-left:18px;font-size:.92rem;color:var(--muted)}.examples-list li{margin:6px 0}.capability-list{margin:20px 0;display:flex;flex-direction:column;gap:10px}.capability-item{padding:12px 16px;background:#ffffffd9;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:.92rem}.capability-item.done:before{content:"✓";display:inline-block;width:20px;height:20px;margin-right:10px;background:var(--brand);color:#fff;border-radius:50%;text-align:center;line-height:20px;font-size:.75rem;font-weight:700}.callout.highlight{background:#2d6a4f1a;border-color:var(--brand)}.callout.highlight .callout-title{color:var(--brand)}.course-hero{padding:80px 0 60px;background:radial-gradient(circle at 20% 20%,rgba(45,106,79,.1),transparent 40%),radial-gradient(circle at 80% 80%,rgba(216,194,143,.2),transparent 40%)}.course-hero-content{max-width:720px}.course-hero h1{font-family:Fraunces,serif;font-size:clamp(2.4rem,5vw,3.2rem);font-weight:700;line-height:1.15;margin:12px 0 8px;color:var(--ink)}.course-hero-subtitle{font-size:1.25rem;color:var(--brand);font-weight:600;margin:0 0 20px}.course-hero-desc{font-size:1.1rem;color:var(--muted);line-height:1.7;margin:0 0 32px}.course-hero-stats{display:flex;gap:40px}.course-stat{display:flex;flex-direction:column}.course-stat-number{font-family:Fraunces,serif;font-size:2.8rem;font-weight:700;color:var(--brand);line-height:1}.course-stat-label{font-size:.88rem;color:var(--muted);margin-top:4px}.course-section{padding:60px 0}.course-section-alt{background:var(--bg-alt)}.section-head.centered{text-align:center;max-width:600px;margin:0 auto 40px}.section-head.centered .section-copy{margin-top:12px}.course-principles{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.principle-item{display:flex;gap:14px;padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md)}.principle-icon{flex-shrink:0;width:36px;height:36px;display:grid;place-items:center;background:var(--brand);color:#fff;border-radius:50%;font-weight:700;font-size:.9rem}.principle-content strong{display:block;margin-bottom:4px;color:var(--ink)}.principle-content p{margin:0;font-size:.88rem;color:var(--muted)}@media(max-width:900px){.course-principles{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.course-principles{grid-template-columns:1fr}}.course-path{display:flex;flex-direction:column;align-items:center;gap:0}.path-stage{width:100%;max-width:560px;padding:24px 28px;background:var(--surface);border:2px solid var(--line);border-radius:var(--radius-lg);position:relative;transition:all .2s ease}.path-stage:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}.path-stage-header{display:flex;align-items:center;gap:14px;margin-bottom:8px}.path-stage-number{width:32px;height:32px;display:grid;place-items:center;background:var(--brand);color:#fff;border-radius:8px;font-weight:700;font-size:.85rem}.path-stage h3{margin:0;font-size:1.1rem;color:var(--ink)}.path-stage-desc{margin:0 0 12px;font-size:.92rem;color:var(--muted);padding-left:46px}.path-stage-lessons{display:inline-block;padding:4px 12px;background:#2958431a;color:var(--brand);border-radius:999px;font-size:.78rem;font-weight:600;margin-left:46px}.path-connector{width:2px;height:24px;background:linear-gradient(to bottom,var(--brand),var(--line))}.prep-materials{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.prep-item{display:flex;gap:14px;padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md)}.prep-icon{font-size:1.5rem;flex-shrink:0}.prep-content strong{display:block;margin-bottom:4px;font-size:.95rem}.prep-content p{margin:0;font-size:.85rem;color:var(--muted)}@media(max-width:768px){.prep-materials{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.prep-materials{grid-template-columns:1fr}}.curriculum-stage{margin-bottom:32px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}.stage-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;background:linear-gradient(135deg,#2d6a4f14,#29584308);border-bottom:1px solid var(--line)}.stage-header-1{background:linear-gradient(135deg,#2d6a4f1a,#2958430a)}.stage-header-2{background:linear-gradient(135deg,#8d6c3b1f,#8d6c3b0a)}.stage-header-3{background:linear-gradient(135deg,#3b6c8d1f,#3b6c8d0a)}.stage-header-4{background:linear-gradient(135deg,#6c3b8d1f,#6c3b8d0a)}.stage-header-5{background:linear-gradient(135deg,#8d3b6c1f,#8d3b6c0a)}.stage-header-6{background:linear-gradient(135deg,#3b8d6c1f,#3b8d6c0a)}.stage-header-7{background:linear-gradient(135deg,#d8c28f40,#d8c28f14)}.stage-header-8{background:linear-gradient(135deg,#4d65a824,#4d65a80d)}.stage-header-9{background:linear-gradient(135deg,#b3653824,#b365380d)}.stage-header-10{background:linear-gradient(135deg,#427e6e24,#427e6e0d)}.stage-header-11{background:linear-gradient(135deg,#915c3829,#915c380d)}.stage-header-12{background:linear-gradient(135deg,#54663d29,#54663d0d)}.stage-header-13{background:linear-gradient(135deg,#5e548329,#5e54830d)}.stage-header-left{display:flex;align-items:center;gap:14px}.stage-badge{padding:4px 10px;background:var(--brand);color:#fff;border-radius:6px;font-size:.75rem;font-weight:700}.stage-header h3{margin:0;font-size:1.15rem}.stage-count{font-size:.88rem;color:var(--muted);font-weight:500}.stage-lessons{padding:8px 0}.stage-summary{padding:18px 24px 0;color:var(--muted);font-size:.94rem;line-height:1.7}.lesson-row{display:flex;gap:16px;padding:16px 24px;border-bottom:1px solid var(--line);transition:background .15s ease}.lesson-row:last-child{border-bottom:none}.lesson-row:hover{background:#29584308}.lesson-row.highlight-row{background:#d8c28f26}.lesson-row.highlight-row:hover{background:#d8c28f38}.lesson-number{flex-shrink:0;width:28px;height:28px;display:grid;place-items:center;background:#2958431a;color:var(--brand);border-radius:6px;font-size:.78rem;font-weight:700}.lesson-points{margin:8px 0 0;padding-left:18px;color:var(--muted)}.lesson-points li{margin:0 0 6px;font-size:.88rem;line-height:1.6}.lesson-points li:last-child{margin-bottom:0}.stage-homework{padding:16px 24px;background:#d8c28f1f;border-top:1px solid var(--line)}.homework-title{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--brand-2);margin-bottom:6px}.stage-homework p{margin:0;font-size:.88rem;color:var(--muted)}.stage-meta-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:0 24px 24px}.stage-meta-card{padding:18px;background:#2958430a;border:1px solid var(--line);border-radius:var(--radius-md)}.stage-meta-label{margin-bottom:8px;font-size:.8rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--brand)}.stage-meta-card p{margin:0;font-size:.9rem;line-height:1.7;color:var(--muted)}.policy-block{display:grid;gap:14px;padding:24px}.policy-card{display:flex;gap:16px;padding:18px 20px;background:#5e54830d;border:1px solid var(--line);border-radius:var(--radius-md)}.policy-index{flex-shrink:0;width:32px;height:32px;display:grid;place-items:center;border-radius:8px;background:#5e548324;color:var(--ink);font-size:.82rem;font-weight:700}.policy-content strong{display:block;margin-bottom:6px;color:var(--ink)}.policy-content p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.7}.policy-example{margin:0 24px 24px;padding:18px 20px;background:#d8c28f1f;border:1px solid var(--line);border-radius:var(--radius-md)}.policy-example-title{margin-bottom:10px;color:var(--brand-2);font-size:.82rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.audience-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:1000px;margin:0 auto}.audience-card{padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);text-align:center}.audience-icon{font-size:2rem;margin-bottom:12px}.audience-card strong{display:block;margin-bottom:8px;color:var(--ink)}.audience-card p{margin:0;font-size:.88rem;color:var(--muted)}@media(max-width:900px){.audience-grid{grid-template-columns:repeat(2,1fr)}.stage-meta-grid{grid-template-columns:1fr}}@media(max-width:768px){.stage-header{flex-direction:column;align-items:flex-start;gap:10px}.stage-header-left{flex-direction:column;align-items:flex-start;gap:8px}.lesson-row{padding:16px 18px}.stage-summary{padding:18px 18px 0}.stage-meta-grid,.policy-block{padding-left:18px;padding-right:18px}.policy-example{margin-left:18px;margin-right:18px}}@media(max-width:480px){.audience-grid{grid-template-columns:1fr}.policy-card{flex-direction:column}}.course-section-cta{background:linear-gradient(135deg,#2d6a4f14,#d8c28f1f)}.course-cta-box{max-width:600px;margin:0 auto;text-align:center}.course-cta-box h2{font-family:Fraunces,serif;font-size:1.8rem;margin:0 0 12px}.course-cta-box p{color:var(--muted);margin:0 0 24px}.course-cta-actions{display:flex;gap:12px;justify-content:center}@media(max-width:480px){.course-cta-actions{flex-direction:column}.course-hero-stats{gap:24px;flex-wrap:wrap}}@media(max-width:900px){.members-entry-card,.members-login-layout,.members-course-hero,.members-lesson-shell{grid-template-columns:1fr}.members-course-sidebar{position:static;height:auto;overflow-y:visible;overscroll-behavior-y:auto;scrollbar-gutter:auto;border-right:none;border-bottom:1px solid var(--line)}}@media(max-width:640px){.members-page{padding:68px 0 64px}.members-entry-card,.members-login-copy,.members-form-card,.members-panel,.members-progress-card,.members-course-section,.members-lesson-outline{padding:22px}.members-chapter-knowledge-map,.members-course-roadmap{padding:10px}.members-course-roadmap-head{flex-direction:column;align-items:flex-start;padding:6px 6px 12px}.members-course-roadmap-head p{font-size:.92rem}.members-course-roadmap-hint{align-self:flex-start;padding:6px 9px;font-size:.76rem}.members-course-roadmap-hint-desktop{display:none}.members-course-roadmap-hint-mobile{display:inline}.members-course-roadmap-figure{overflow-x:auto;overscroll-behavior-x:contain}.members-course-roadmap-figure img{width:760px;max-width:none;touch-action:pan-x}.members-chapter-knowledge-map-head{align-items:flex-start;padding:6px 6px 12px}.members-chapter-knowledge-map-head p{font-size:.92rem}.members-chapter-knowledge-map-hint{display:none}.members-course-meta,.members-curriculum-row,.members-lesson-topline,.members-lesson-progress,.members-footer-nav-inner{grid-template-columns:1fr;flex-direction:column;align-items:flex-start}.members-curriculum-row{gap:10px;padding:16px 0}.members-curriculum-meta{flex-direction:column;align-items:flex-start;justify-items:start}.members-row-link{text-align:left}.members-lesson-container{padding:28px 18px 54px}.members-lesson-progress .members-progress-bar{max-width:none;width:100%}}.checkin-section,.homework-section{margin-top:32px;padding:24px;background:linear-gradient(180deg,#ffffffd9,#fdf9f1f2);border:1px solid rgba(45,106,79,.1);border-radius:var(--radius-xl);box-shadow:var(--shadow)}.checkin-header,.homework-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.checkin-header h3,.homework-header h3{margin:0;font-size:1.1rem;color:var(--text)}.checkin-count{font-size:.88rem;color:var(--muted)}.checkin-avatars{display:flex;align-items:center;flex-wrap:wrap;gap:6px;margin-bottom:16px}.checkin-avatar{width:36px;height:36px;border-radius:50%;border:2px solid var(--surface);object-fit:cover;transition:transform .15s ease}.checkin-avatar:hover{transform:scale(1.1);z-index:1}.checkin-empty{color:var(--muted);font-size:.9rem}.checkin-action{margin-top:16px}.checkin-button{width:100%}.checkin-done{display:flex;align-items:center;justify-content:center;gap:8px;padding:14px 20px;background:linear-gradient(135deg,#2d6a4f1a,#2958430f);border-radius:var(--radius-md);color:var(--brand);font-weight:600}.checkin-icon{display:flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background:var(--brand);color:#fff;font-size:.85rem}.checkin-loading,.checkin-error{padding:20px;text-align:center;color:var(--muted);font-size:.9rem}.checkin-error{color:#8a2a2a}.chapter-stamp{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;font-size:.75rem;margin-left:8px;vertical-align:middle}.chapter-stamp-completed{background:linear-gradient(135deg,#2d6a4f,#1f4032);color:#fff;box-shadow:0 2px 8px #2958434d}.members-row-state-completed{background:linear-gradient(135deg,#29584326,#2d6a4f14);color:var(--brand);font-weight:700}.homework-form{display:grid;gap:16px}.homework-form label{display:grid;gap:6px;font-weight:600;font-size:.9rem}.homework-form input:not([type=radio]),.homework-form textarea{width:100%;padding:12px 14px;border:1px solid rgba(31,42,36,.12);border-radius:var(--radius-md);font-size:.95rem;background:#fff;transition:border-color .15s ease}.homework-form input:not([type=radio]):focus,.homework-form textarea:focus{outline:none;border-color:var(--brand)}.homework-method-picker{min-width:0;margin:0;padding:0;border:0}.homework-method-picker legend{padding:0;font-size:.9rem;font-weight:700}.homework-method-hint{margin:4px 0 12px;color:var(--muted);font-size:.86rem}.homework-method-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.homework-form .homework-method-option{display:flex;align-items:flex-start;gap:10px;padding:14px;border:1px solid rgba(31,42,36,.14);border-radius:var(--radius-md);background:#ffffffb8;cursor:pointer;transition:border-color .15s ease,background .15s ease}.homework-form .homework-method-option:has(input:checked){border-color:var(--brand);background:#2d6a4f14}.homework-form .homework-method-option:focus-within{outline:2px solid rgba(41,88,67,.28);outline-offset:2px}.homework-method-option input{flex:0 0 auto;width:18px;height:18px;margin:2px 0 0;accent-color:var(--brand)}.homework-method-option span{display:grid;gap:3px}.homework-method-option strong{color:var(--ink);line-height:1.35}.homework-method-option small,.homework-form label>small{color:var(--muted);font-size:.82rem;font-weight:400;line-height:1.5}.homework-form>.form-actions{display:flex;align-items:center;gap:12px}.homework-form .required{color:#8a2a2a}.homework-submitted{padding:16px 0 0}.homework-submitted a{color:var(--brand);word-break:break-all}.homework-note{margin-top:12px;color:var(--muted)}.homework-time{margin-top:12px;font-size:.85rem;color:var(--muted)}.homework-status-badge{padding:4px 10px;border-radius:999px;font-size:.8rem;font-weight:600}.homework-status-submitted{background:linear-gradient(135deg,#29584326,#2d6a4f14);color:var(--brand)}.homework-status-pending{background:#8d6c3b26;color:var(--brand-2)}.homework-actions{margin-top:20px;padding-top:20px;border-top:1px solid rgba(45,106,79,.08)}.homework-resubmit-form{margin-top:20px;padding:20px;background:#fff9;border-radius:var(--radius-lg);border:1px solid rgba(41,88,67,.1)}.homework-resubmit-form h4{margin:0 0 16px;font-size:1rem;color:var(--text)}.homework-resubmit-form .form-actions{display:flex;gap:12px;margin-top:20px}.homework-resubmit-form .button-text{color:var(--muted)}.homework-resubmit-form .button-text:hover{color:var(--text);background:#2958430d}@media(max-width:768px){.checkin-section,.homework-section{padding:18px;margin-top:24px}.checkin-avatar{width:32px;height:32px;margin-left:-8px}.checkin-more{width:32px;height:32px;margin-left:-8px;font-size:.72rem}.homework-method-options{grid-template-columns:minmax(0,1fr)}.homework-form>.form-actions{align-items:stretch;flex-direction:column}}.lesson-notes-section{margin-top:32px;padding:24px;background:linear-gradient(180deg,#ffffffd9,#fdf9f1f2);border:1px solid rgba(45,106,79,.1);border-radius:var(--radius-xl);box-shadow:var(--shadow)}.lesson-notes-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}.lesson-notes-header h3{margin:0;font-size:1.1rem;color:var(--text)}.lesson-notes-edit-btn{padding:4px 12px;border:1px solid rgba(41,88,67,.3);border-radius:999px;background:transparent;color:var(--brand);font-size:.85rem;font-weight:500;cursor:pointer;transition:background .15s ease,border-color .15s ease}.lesson-notes-edit-btn:hover{background:#29584312;border-color:var(--brand)}.lesson-notes-display{padding:14px 16px;background:#ffffffb3;border:1px solid rgba(41,88,67,.1);border-radius:var(--radius-lg);margin-bottom:0}.lesson-notes-display-content{margin:0 0 10px;font-size:.95rem;color:var(--text);line-height:1.7;white-space:pre-wrap;word-break:break-word}.lesson-notes-display-meta{display:flex;align-items:center;gap:10px}.lesson-notes-visibility-tag{font-size:.78rem;padding:2px 8px;border-radius:999px;background:#2958431a;color:var(--brand);font-weight:500}.lesson-notes-hint{margin:0 0 16px;font-size:.88rem;color:var(--muted)}.lesson-notes-form{display:grid;gap:12px}.lesson-notes-form[hidden],.lesson-notes-display[hidden]{display:none}.lesson-notes-textarea{width:100%;padding:12px 14px;border:1px solid rgba(31,42,36,.12);border-radius:var(--radius-md);font-size:.95rem;font-family:inherit;background:#fff;resize:vertical;transition:border-color .15s ease;box-sizing:border-box}.lesson-notes-textarea:focus{outline:none;border-color:var(--brand)}.lesson-notes-meta{display:flex;align-items:center;justify-content:space-between;gap:8px}.lesson-notes-count{font-size:.85rem;font-weight:600;color:var(--brand)}.lesson-notes-saved{font-size:.85rem;color:var(--muted)}.lesson-notes-visibility{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.lesson-notes-visibility-label{font-size:.9rem;font-weight:600;color:var(--text)}.lesson-notes-radio{display:flex;align-items:center;gap:6px;font-size:.9rem;color:var(--text);cursor:pointer;padding:8px 16px;border:1px solid rgba(41,88,67,.2);border-radius:999px;transition:border-color .15s ease,background .15s ease}.lesson-notes-radio:has(input:checked){border-color:var(--brand);background:#29584312}.lesson-notes-radio input{accent-color:var(--brand);margin:0}.lesson-notes-actions{display:flex;align-items:center;gap:12px}.lesson-notes-error{font-size:.88rem;color:#8a2a2a}.lesson-notes-public{margin-top:24px}.lesson-notes-public-header{font-size:.95rem;font-weight:600;color:var(--text);margin-bottom:12px}.lesson-notes-public-list{display:grid;gap:12px}.lesson-note-card{padding:14px 16px;background:#ffffffb3;border:1px solid rgba(41,88,67,.1);border-radius:var(--radius-lg)}.lesson-note-card-meta{display:flex;align-items:center;gap:8px;margin-bottom:8px}.lesson-note-card-avatar{width:28px;height:28px;border-radius:50%;object-fit:cover;flex-shrink:0}.lesson-note-card-name{font-size:.9rem;font-weight:600;color:var(--text);flex:1}.lesson-note-card-time{font-size:.8rem;color:var(--muted);white-space:nowrap}.lesson-notes-show-more{width:100%;padding:10px;margin-top:4px;background:transparent;border:1px dashed rgba(41,88,67,.25);border-radius:var(--radius-lg);color:var(--brand);font-size:.88rem;cursor:pointer;transition:background .15s ease}.lesson-notes-show-more:hover{background:#2958430d}.lesson-note-card-content{margin:0;font-size:.92rem;color:var(--text);line-height:1.6;word-break:break-word}@media(max-width:768px){.lesson-notes-section{padding:18px;margin-top:24px}.lesson-notes-visibility{gap:10px}.lesson-note-card-meta{flex-direction:column;align-items:flex-start;gap:4px}}.notif-bell{position:relative;display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;color:var(--muted);transition:color .18s ease,background .18s ease;text-decoration:none;flex-shrink:0}.notif-bell:hover{color:var(--ink);background:#1f2a240f}.notif-badge{position:absolute;top:2px;right:2px;min-width:18px;height:18px;padding:0 4px;background:#e53e3e;color:#fff;font-size:.68rem;font-weight:700;line-height:18px;text-align:center;border-radius:9px;border:2px solid rgba(255,255,255,.85);pointer-events:none;box-sizing:border-box}.member-notifications-page{display:grid;gap:20px}.member-notifications-head{margin-bottom:0}.member-notification-list{display:grid;gap:12px}.member-notification-card,.member-notification-detail-card,.member-notification-empty{border:1px solid var(--line);background:#ffffffd9;box-shadow:var(--shadow)}.member-notification-card{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:16px;padding:18px 20px;border-radius:16px;transition:transform .18s ease,border-color .18s ease,background .18s ease}.member-notification-card:hover{transform:translateY(-1px);border-color:var(--line-strong);background:var(--surface-strong)}.member-notification-card.is-unread{border-left:4px solid var(--brand)}.member-notification-card-main{min-width:0}.member-notification-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:8px;color:var(--muted);font-size:.85rem}.member-notification-type,.member-notification-state{display:inline-flex;align-items:center;width:fit-content;border-radius:999px;font-size:.78rem;font-weight:700}.member-notification-type{padding:4px 10px;background:#2958431a;color:var(--brand)}.member-notification-card h2,.member-notification-detail-card h1{margin:0;line-height:1.25;letter-spacing:0}.member-notification-card h2{font-size:1.05rem}.member-notification-card p{margin:8px 0 0;color:var(--muted)}.member-notification-state{justify-content:center;min-width:48px;padding:5px 10px;background:#1f2a240f;color:var(--muted)}.member-notification-card.is-unread .member-notification-state{background:#2d6a4f1a;color:var(--brand)}.member-notification-detail-card{display:grid;gap:18px;padding:28px;border-radius:20px}.member-notification-detail-card h1{font-size:clamp(1.7rem,4vw,2.5rem)}.member-notification-content{display:grid;gap:12px;color:var(--ink)}.member-notification-content p{margin:0;white-space:normal}.member-notification-extra{display:grid;gap:14px;padding-top:4px}.member-notification-code{display:grid;gap:8px;width:fit-content;max-width:100%;padding:14px 16px;border-radius:14px;background:#d8c28f33;border:1px solid rgba(141,108,59,.24)}.member-notification-code span,.member-notification-note strong{color:var(--muted);font-size:.82rem;font-weight:700}.member-notification-code code{font-size:1.1rem;color:var(--ink);word-break:break-all}.member-notification-note{display:grid;gap:6px}.member-notification-note p{margin:0;color:var(--muted)}.member-notification-action{width:fit-content}.member-notification-detail-actions{display:flex;gap:10px;padding-top:6px}.member-notification-empty{display:grid;gap:8px;justify-items:start;padding:28px;border-radius:18px}.member-notification-empty strong{font-size:1.1rem}.member-notification-empty p{margin:0;color:var(--muted)}@media(max-width:640px){.member-notification-card{grid-template-columns:1fr;align-items:start}.member-notification-state{justify-self:start}.member-notification-detail-card,.member-notification-empty{padding:20px}}.members-resources-page .members-course-hero{margin-bottom:0}.members-faq-page{display:grid;gap:18px}.members-faq-hero{padding:clamp(22px,4vw,34px);border:1px solid var(--line);border-radius:22px;background:#ffffffd9;box-shadow:0 12px 34px #3133290f;overflow:hidden}.members-faq-hero-copy{display:grid;gap:10px;max-width:760px}.members-faq-hero-copy .members-breadcrumb,.members-faq-hero-copy .members-lead{margin:0}.members-faq-title-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px}.members-faq-title-row h1{margin:0;font-family:Fraunces,"Source Han Serif SC",serif;font-size:clamp(2rem,4.8vw,3.15rem);line-height:1.04;letter-spacing:-.03em}.members-faq-hero-copy .members-lead{max-width:64ch;color:var(--muted);font-size:1.02rem}.members-faq-count{display:inline-flex;align-items:center;min-height:30px;padding:5px 10px;border-radius:999px;background:#2958431a;color:var(--brand);font-size:.86rem;font-weight:700;white-space:nowrap}.members-faq-section{padding:clamp(18px,3vw,26px);border-radius:22px;border:1px solid var(--line);background:#ffffffd9}.members-faq-section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:12px;padding-bottom:16px;border-bottom:1px solid rgba(31,42,36,.1)}.members-faq-section-head h2{margin:0;font-size:1.18rem}.members-faq-section-head p{margin:0;max-width:34ch;color:var(--muted);text-align:right}.members-faq-list{display:grid;gap:8px}.members-faq-row{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:14px;align-items:start;padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:#ffffffd9;color:inherit;transition:transform .16s ease,border-color .16s ease,background .16s ease,box-shadow .16s ease}.members-faq-row:hover{transform:translateY(-2px);border-color:#29584338;background:#ffffffd9;box-shadow:0 14px 28px var(--line)}.members-faq-index{padding-top:2px;color:var(--muted);font-size:.86rem;font-weight:700;letter-spacing:.04em}.members-faq-copy{display:grid;gap:5px;min-width:0}.members-faq-copy strong{font-size:1.06rem;line-height:1.35}.members-faq-copy p{margin:0;color:var(--muted);font-size:.94rem;line-height:1.55}.members-faq-meta{display:grid;justify-items:end;gap:6px;color:var(--muted);font-size:.86rem;white-space:nowrap}.members-faq-meta span:last-child{color:var(--brand);font-weight:700}.members-faq-empty{background:#ffffffd9;border:1px dashed rgba(31,42,36,.16)}.members-resource-list{display:grid;gap:0;border:1px solid var(--line);border-radius:var(--radius-lg);background:#ffffffd9;overflow:hidden}.members-toolbox-category{display:grid;grid-template-columns:180px 1fr;align-items:start;gap:16px;padding:18px 22px}.members-toolbox-category+.members-toolbox-category{border-top:1px solid rgba(31,42,36,.06)}.members-toolbox-cat-header{display:flex;flex-direction:column;gap:4px}.members-toolbox-cat-header h3{margin:0;font-size:1.05rem;font-weight:700}.members-toolbox-count{font-size:.82rem;color:var(--muted)}.members-toolbox-items{display:flex;flex-wrap:wrap;gap:8px;padding-top:2px}.members-toolbox-item{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:10px;border:1px solid rgba(31,42,36,.1);background:#ffffffb3;text-decoration:none;transition:border-color .15s,background .15s}.members-toolbox-item:hover{border-color:var(--brand);background:#2958430f}.members-toolbox-item-label{font-weight:600;font-size:.95rem;color:var(--ink)}.members-toolbox-item-desc{font-size:.82rem;color:var(--muted)}@media(max-width:900px){.members-toolbox-category{grid-template-columns:1fr;gap:10px}}.member-faq-detail-card{display:grid}@media(max-width:900px){.members-faq-row{grid-template-columns:34px minmax(0,1fr)}.members-faq-meta{grid-column:2;justify-items:start;display:flex;flex-wrap:wrap;gap:8px 12px}}@media(max-width:640px){.members-faq-page{gap:16px}.members-faq-hero,.members-faq-section{border-radius:20px}.members-faq-section-head{display:grid;align-items:start}.members-faq-section-head p{max-width:none;text-align:left}.members-faq-row{padding:16px 14px;border-radius:15px}}.ip-course-section{border-top:2px solid var(--color-accent, #f59e0b);padding-top:2rem}.ip-index{font-size:.85rem;font-weight:700;letter-spacing:.03em;display:flex;align-items:center;justify-content:center}.chapter-tag-badge{display:inline-flex;align-items:center;justify-content:center;padding:3px 8px;border-radius:6px;font-size:.72rem;font-weight:700;letter-spacing:.04em;background:#5d4ad41a;color:#5d4ad4;white-space:nowrap}.ip-empty-state{color:#9ca3af;font-size:.9rem;padding:2rem 0;text-align:center}.ip-replay-date{font-size:.85rem;color:#9ca3af;margin:.5rem 0 0}.members-chapter-resources{margin:0 0 20px;padding:18px 24px;background:linear-gradient(135deg,#fef9f0,#fcf7eb);border:1px solid rgba(141,108,59,.18);border-radius:12px}.members-chapter-resources[hidden]{display:none}.members-chapter-resources-head{display:flex;align-items:center;gap:8px;margin-bottom:12px}.members-chapter-resources-icon{font-size:1.15rem}.members-chapter-resources-head h2{margin:0;font-size:.95rem;font-weight:700;color:#8d6c3b}.ip-resource-links{display:flex;gap:1rem;flex-wrap:wrap;padding:.5rem 0}.ip-resource-btn{display:flex;align-items:center;gap:.875rem;padding:1rem 1.5rem;background:#fff;border:1.5px solid #e5e7eb;border-radius:10px;text-decoration:none;color:inherit;transition:border-color .15s,box-shadow .15s;min-width:180px}.ip-resource-btn:hover{border-color:#6366f1;box-shadow:0 2px 8px #6366f11a}.ip-resource-icon{font-size:1.5rem;flex-shrink:0}.ip-resource-btn strong{display:block;font-size:.95rem}.ip-resource-btn small{font-size:.78rem;color:#9ca3af}.members-chapter-resources .ip-resource-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px;padding:8px 0 2px}.members-chapter-resources .ip-resource-card{display:flex;min-width:0;min-height:92px;overflow:hidden;background:#ffffffe6;border:1px solid rgba(141,108,59,.18);border-radius:14px;box-shadow:0 8px 24px #5b46260f;transition:border-color .18s,box-shadow .18s,transform .18s}.members-chapter-resources .ip-resource-card:hover{border-color:#29584357;box-shadow:0 12px 28px #2958431a;transform:translateY(-1px)}.members-chapter-resources .ip-resource-btn{flex:1 1 auto;min-width:0;gap:14px;padding:18px 20px;background:transparent;border:0;border-radius:0;transition:color .18s,background .18s}.members-chapter-resources .ip-resource-btn:hover{color:var(--brand);background:#29584309;box-shadow:none}.members-chapter-resources .ip-resource-icon{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:#8d6c3b1a;color:#8d6c3b;font-size:1.15rem}.members-chapter-resources .ip-resource-copy{min-width:0}.members-chapter-resources .ip-resource-btn strong{font-size:1rem;line-height:1.4}.members-chapter-resources .ip-resource-btn small{display:block;margin-top:2px;color:var(--muted)}.ip-video-password{display:grid;grid-template-columns:auto auto;align-content:center;justify-content:center;column-gap:8px;row-gap:2px;flex:0 0 auto;min-width:158px;padding:14px 18px;background:#8d6c3b0e;border:0;border-left:1px solid rgba(141,108,59,.14);cursor:pointer;color:var(--ink);text-align:left;transition:color .18s,background .18s}.ip-video-password:hover{color:var(--brand);background:#29584314}.ip-video-password-label{color:var(--muted);font-size:.78rem;flex-shrink:0}.ip-video-password-value{font-family:ui-monospace,monospace;font-size:.88rem;font-weight:700;color:inherit;background:none;padding:0}.ip-video-password-hint{grid-column:1 / -1;font-size:.72rem;color:#8d6c3b;text-align:center}@media(max-width:760px){.members-chapter-resources .ip-resource-links{grid-template-columns:1fr}}@media(max-width:480px){.members-chapter-resources{padding:16px}.members-chapter-resources .ip-resource-card-video{flex-direction:column}.members-chapter-resources .ip-resource-btn{min-height:86px;padding:16px}.ip-video-password{grid-template-columns:auto auto 1fr;justify-content:start;min-width:0;padding:10px 16px;border-left:0;border-top:1px solid rgba(141,108,59,.14)}.ip-video-password-hint{grid-column:auto;justify-self:end;text-align:right}}.lesson-interaction-section{margin-top:32px;padding:0;background:linear-gradient(180deg,#ffffffd9,#fdf9f1f2);border:1px solid rgba(45,106,79,.1);border-radius:var(--radius-xl);box-shadow:var(--shadow);overflow:hidden}.lesson-interaction-tabs{display:flex;border-bottom:1px solid rgba(41,88,67,.1);padding:0 24px}.lesson-interaction-tab{position:relative;padding:14px 4px;margin-right:24px;background:none;border:none;font-size:.95rem;font-weight:500;color:var(--muted);cursor:pointer;transition:color .15s ease;white-space:nowrap}.lesson-interaction-tab:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;background:var(--brand);border-radius:2px 2px 0 0;opacity:0;transition:opacity .15s ease}.lesson-interaction-tab.is-active{color:var(--brand)}.lesson-interaction-tab.is-active:after{opacity:1}.lesson-interaction-tab:hover:not(.is-active){color:var(--ink)}.lesson-tab-count{font-weight:400;color:var(--muted);font-size:.88rem}.lesson-interaction-section [data-tab-panel]{padding:20px 24px 24px}.lesson-comment-form{margin-bottom:20px}.lesson-comment-textarea{width:100%;padding:12px 14px;border:1px solid rgba(31,42,36,.12);border-radius:var(--radius-md);font-size:.95rem;font-family:inherit;background:#fff;resize:vertical;transition:border-color .15s ease;box-sizing:border-box;min-height:80px}.lesson-comment-textarea:focus{outline:none;border-color:var(--brand)}.lesson-comment-form-footer{display:flex;align-items:center;justify-content:space-between;margin-top:8px;gap:8px}.lesson-comment-tools{display:flex;align-items:center;gap:8px;position:relative}.lesson-comment-emoji-btn{padding:4px 8px;border:1px solid rgba(41,88,67,.2);border-radius:var(--radius-sm);background:transparent;font-size:1.1rem;cursor:pointer;line-height:1;transition:background .12s ease,border-color .12s ease}.lesson-comment-emoji-btn:hover{background:#29584312;border-color:var(--brand)}.lesson-comment-count{font-size:.82rem;color:var(--muted)}.lesson-comment-submit{flex-shrink:0}.lesson-comment-emoji-panel{display:flex;flex-wrap:wrap;gap:4px;padding:10px;background:#fff;border:1px solid rgba(41,88,67,.15);border-radius:var(--radius-md);box-shadow:0 4px 16px #0000001a;margin-top:6px;width:fit-content}.lesson-comment-emoji-panel[hidden]{display:none}.lesson-comment-emoji-item{padding:4px 6px;background:none;border:none;font-size:1.2rem;cursor:pointer;border-radius:6px;line-height:1;transition:background .1s ease}.lesson-comment-emoji-item:hover{background:#2d6a4f14}.lesson-comment-error{display:block;margin-top:6px;font-size:.85rem;color:#c0392b}.lesson-comment-error[hidden]{display:none}.lesson-comment-list{display:flex;flex-direction:column;gap:0}.lesson-comment-empty{margin:0;padding:20px 0 4px;color:var(--muted);font-size:.9rem;text-align:center}.lesson-comment-card{display:flex;gap:12px;padding:16px 0;border-top:1px solid rgba(45,106,79,.08)}.lesson-comment-card:first-child{border-top:none}.lesson-comment-avatar{width:36px;height:36px;border-radius:50%;flex-shrink:0;object-fit:cover}.lesson-comment-body{flex:1;min-width:0}.lesson-comment-meta{display:flex;align-items:center;gap:8px;margin-bottom:6px;flex-wrap:wrap}.lesson-comment-name{font-size:.9rem;font-weight:600;color:var(--ink)}.lesson-comment-time{font-size:.8rem;color:var(--muted)}.lesson-comment-delete{margin-left:auto;padding:2px 8px;background:none;border:none;font-size:.78rem;color:#c0392b;cursor:pointer;border-radius:4px;transition:background .12s ease}.lesson-comment-delete:hover{background:#c0392b14}.lesson-comment-content{margin:0;font-size:.95rem;color:var(--text, var(--ink));line-height:1.7;white-space:pre-wrap;word-break:break-word}@media(max-width:768px){.lesson-interaction-section{margin-top:24px}.lesson-interaction-tabs{padding:0 18px}.lesson-interaction-section [data-tab-panel]{padding:16px 18px 20px}.lesson-comment-meta{gap:6px}}.course-feedback-section{margin-top:28px;padding:24px;background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border, rgba(0,0,0,.06))}.course-feedback-header{display:flex;align-items:center;gap:10px;margin-bottom:18px}.course-feedback-icon{color:var(--brand-2, #8d6c3b);flex-shrink:0}.course-feedback-title{display:block;font-size:1rem;font-weight:600;color:var(--ink);font-family:var(--font-ui)}.course-feedback-subtitle{display:block;font-size:.85rem;color:var(--muted);margin-top:2px}.feedback-stars{display:flex;align-items:center;gap:4px;margin-bottom:14px}.feedback-star{background:none;border:none;padding:2px;cursor:pointer;color:#d1d5db;transition:color .15s ease,transform .15s ease;line-height:1}.feedback-star svg{display:block}.feedback-star.is-active,.feedback-star.is-hover{color:#f59e0b}.feedback-star.is-active{transform:scale(1.05)}.feedback-star-label{margin-left:8px;font-size:.85rem;color:var(--muted);min-width:48px}.feedback-comment-field{margin-bottom:14px}.feedback-comment-textarea{width:100%;box-sizing:border-box;padding:12px 14px;border:1px solid #e2e8f0;border-radius:var(--radius-md);font-family:var(--font-ui);font-size:.9rem;color:var(--ink);background:#fff;resize:vertical;min-height:72px;transition:border-color .15s ease}.feedback-comment-textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px #2d6a4f14}.feedback-comment-textarea::placeholder{color:#a0aec0}.feedback-comment-footer{display:flex;align-items:center;justify-content:space-between;margin-top:6px;font-size:.8rem;color:var(--muted)}.feedback-draft-hint{font-size:.8rem;color:var(--brand-2)}.feedback-comment-count{font-size:.8rem;color:var(--muted)}.feedback-comment-error{display:block;margin-top:6px;font-size:.85rem;color:#e53e3e}.feedback-actions{display:flex;align-items:center;gap:10px;justify-content:flex-end}.feedback-submit{min-width:100px}.course-feedback-thanks{background:#2958430a;border-radius:var(--radius-md);padding:18px 20px;margin-bottom:12px}.course-feedback-thanks-stars{display:flex;gap:2px;margin-bottom:8px}.feedback-star-static{font-size:1.3rem;color:#d1d5db}.feedback-star-static.is-active{color:#f59e0b}.course-feedback-thanks-text{font-size:.9rem;color:var(--ink);margin:0 0 10px;line-height:1.5}.course-feedback-comment-preview{display:inline;font-style:italic;color:var(--muted)}.course-feedback-edit-btn{font-size:.85rem}@media(max-width:768px){.course-feedback-section{padding:18px;margin-top:22px}.course-feedback-header{align-items:flex-start}.feedback-star svg{width:24px;height:24px}}.survey-modal-overlay{position:fixed;inset:0;z-index:2000;display:flex;align-items:center;justify-content:center;padding:24px;background:#0f172a7a;animation:survey-fade-in .2s ease}@keyframes survey-fade-in{0%{opacity:0}to{opacity:1}}@keyframes survey-slide-up{0%{opacity:0;transform:translateY(20px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.survey-modal-box{width:min(560px,100%);max-height:calc(100vh - 48px);overflow-y:auto;background:#fff;border-radius:16px;box-shadow:0 24px 70px #0f172a59;padding:28px 28px 24px;animation:survey-slide-up .25s ease}.survey-modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:8px}.survey-modal-header h3{margin:0;font-size:1.2rem;font-weight:700;color:#1e293b;line-height:1.4}.survey-modal-close-btn{background:none;border:none;font-size:22px;line-height:1;cursor:pointer;color:#94a3b8;padding:4px;border-radius:6px;transition:background .15s,color .15s;flex-shrink:0}.survey-modal-close-btn:hover{background:#f1f5f9;color:#475569}.survey-modal-desc{margin:0 0 20px;font-size:.9rem;color:#64748b;line-height:1.5}.survey-modal-form{display:grid;gap:20px}.survey-modal-question{background:#f8fafc;border-radius:10px;padding:16px}.survey-q-label{display:flex;align-items:flex-start;gap:6px;margin-bottom:10px;font-size:.95rem;font-weight:600;color:#1e293b;line-height:1.4}.survey-q-number{color:#64748b;flex-shrink:0}.survey-q-required{color:#ef4444;margin-left:2px}.survey-ms-wrapper{position:relative}.survey-ms-trigger{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;padding:10px 14px;background:#fff;border:1.5px solid #e2e8f0;border-radius:8px;font-size:.9rem;color:#1e293b;cursor:pointer;transition:border-color .15s;text-align:left}.survey-ms-trigger:hover{border-color:#7c3aed}.survey-ms-trigger:focus-visible{outline:2px solid #7c3aed;outline-offset:2px}.survey-ms-arrow{flex-shrink:0;transition:transform .2s;color:#94a3b8}.survey-ms-trigger[aria-expanded=true] .survey-ms-arrow{transform:rotate(180deg)}.survey-ms-dropdown{position:absolute;top:calc(100% + 4px);left:0;right:0;background:#fff;border:1.5px solid #e2e8f0;border-radius:8px;box-shadow:0 8px 24px #0f172a1f;z-index:10;max-height:240px;overflow-y:auto;padding:6px}.survey-ms-option{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:6px;cursor:pointer;font-size:.9rem;color:#1e293b;transition:background .1s}.survey-ms-option:hover{background:#f1f5f9}.survey-ms-option input[type=checkbox]{width:16px;height:16px;accent-color:#7c3aed;flex-shrink:0}.survey-modal-actions{display:flex;gap:12px;justify-content:flex-end;padding-top:4px}.survey-modal-actions .button{font-size:.9rem;padding:10px 20px}.survey-modal-error{font-size:.85rem;color:#ef4444;margin:0;text-align:center}@media(max-width:768px){.survey-modal-overlay{padding:12px;align-items:flex-end}.survey-modal-box{width:100%;border-radius:16px 16px 0 0;padding:24px 20px 20px;max-height:85vh}.survey-modal-actions{flex-direction:column}.survey-modal-actions .button{width:100%;text-align:center}.survey-modal-question{padding:14px}.survey-ms-dropdown{max-height:200px}}@media(max-width:480px){.survey-modal-header h3{font-size:1.05rem}.survey-modal-box{padding:20px 16px 16px}.survey-q-label{font-size:.9rem}}[data-survey-banner]{margin-bottom:32px}.survey-inline-card{background:#f8fafc;border:1px solid #e2e8f0;border-radius:16px;padding:28px 32px 24px}.survey-inline-header{display:flex;align-items:center;gap:12px;margin-bottom:8px}.survey-inline-badge{display:inline-block;padding:3px 10px;border-radius:20px;background:#eff6ff;color:#2563eb;font-size:.75rem;font-weight:600;letter-spacing:.02em;white-space:nowrap}.survey-inline-header h3{margin:0;font-size:1.15rem;font-weight:700;color:#1e293b}.survey-inline-desc{margin:0 0 20px;font-size:.9rem;color:#64748b;line-height:1.5}.survey-inline-form{display:grid;gap:20px}.survey-inline-question{display:grid;gap:10px}.survey-inline-actions{display:flex;align-items:center;gap:16px;padding-top:4px}.survey-inline-error{margin:0;font-size:.85rem;color:#ef4444}@media(max-width:640px){.survey-inline-card{padding:20px 16px 16px}.survey-inline-header{flex-wrap:wrap}.survey-inline-actions{flex-direction:column;align-items:stretch}.survey-inline-actions .button{width:100%;text-align:center}}.showcase-entry-section{margin:1.5rem 0}.showcase-entry-card{display:flex;align-items:center;gap:.75rem;padding:1rem 1.25rem;background:linear-gradient(135deg,#fef9f0,#fffcf5);border:1px solid rgba(141,108,59,.15);border-radius:.75rem;text-decoration:none;transition:box-shadow .2s,transform .15s}.showcase-entry-card:hover{box-shadow:0 4px 16px #8d6c3b1f;transform:translateY(-1px)}.showcase-entry-icon{font-size:1.75rem;line-height:1;flex-shrink:0}.showcase-entry-body h3{margin:0;font-size:1rem;font-weight:600;color:#8d6c3b}.showcase-entry-body p{margin:.2rem 0 0;font-size:.85rem;color:#a0805a}.showcase-count{font-size:.875rem;color:var(--text-secondary);margin-bottom:1rem}.showcase-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}@media(max-width:860px){.showcase-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:540px){.showcase-grid{grid-template-columns:1fr}}.showcase-card{background:var(--surface-card);border:1px solid var(--border-color);border-radius:.75rem;padding:1.25rem;display:flex;flex-direction:column;gap:.75rem;transition:box-shadow .2s,transform .15s}.showcase-card:hover{box-shadow:0 6px 20px #00000014;transform:translateY(-2px)}.showcase-card-head{display:flex;align-items:center;justify-content:space-between;gap:.5rem}.showcase-card-author{display:flex;align-items:center;gap:.5rem;min-width:0}.showcase-card-avatar{width:2rem;height:2rem;border-radius:50%;object-fit:cover;flex-shrink:0}.showcase-card-avatar.placeholder{display:flex;align-items:center;justify-content:center;background:var(--surface-accent);color:var(--text-secondary);font-size:.8rem;font-weight:600}.showcase-card-name{font-size:.875rem;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.showcase-card-stars{font-size:.875rem;color:#f59e0b;letter-spacing:.05em;flex-shrink:0}.showcase-card-note{margin:0;font-size:.875rem;color:var(--text-primary);line-height:1.5}.showcase-card-review{padding:.625rem .75rem;background:#8d6c3b0a;border-radius:.5rem;font-size:.8125rem;color:var(--text-secondary);line-height:1.45}.showcase-card-review-label{font-weight:600;color:#8d6c3b}.showcase-card-footer{margin-top:auto;padding-top:.25rem}.showcase-card-link{display:inline-flex;align-items:center;gap:.3rem;font-size:.875rem;font-weight:500;color:var(--color-primary);text-decoration:none}.showcase-card-link:hover{text-decoration:underline}.showcase-loading,.showcase-empty-state{padding:2rem;text-align:center;color:var(--text-secondary)}.showcase-error{padding:1rem;color:var(--color-error);text-align:center}