:root{
  --ink:#292821;
  --ink-2:#47443A;
  --bg:#FBFAF4;
  --bg-2:#F6F0D9;
  --surface:#FFFFFF;
  --surface-raised:#FFFDF7;
  --surface-soft:#F3E8B8;
  --yellow:#E8C95A;
  --yellow-dark:#B58C20;
  --yellow-soft:rgba(232,201,90,.20);
  --champagne:#D8B86A;
  --cream:#FFF3BF;
  --sage:#71866B;
  --sage-soft:rgba(113,134,107,.13);
  --text:#292821;
  --text-2:#615E53;
  --text-3:#918C7C;
  --line:#E6DFC9;
  --line-strong:#CFC3A0;
  --shadow:0 14px 34px rgba(93,78,39,.09);
  --shadow-strong:0 24px 60px rgba(93,78,39,.14);
  --radius:8px;
  --radius-card:18px;
  --radius-large:30px;
  --wrap:1320px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.72;overflow-x:clip;padding-bottom:0}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button,a,input,select,textarea{outline:none}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(181,140,32,.38);outline-offset:3px}
p{margin:0 0 1em;color:var(--text-2)}
h1,h2,h3{margin:0;color:var(--ink);line-height:1.17;letter-spacing:-.025em}
h1{font-size:clamp(2.35rem,5vw,5.7rem);font-weight:800}
h2{font-size:clamp(1.8rem,3vw,3.2rem);font-weight:760}
h3{font-size:1.08rem;font-weight:720}
small{color:var(--text-3)}
.wrap{width:min(calc(100% - 48px),var(--wrap));margin-inline:auto}
.section{padding:78px 0;position:relative}
.surface{background:var(--surface)}
.surface-soft{background:#f8f6ee}
.cream-band{background:linear-gradient(135deg,var(--bg-2),#fff8dc 62%,#f8f2dc)}
.safety-band{background:linear-gradient(130deg,#f4f3e8,var(--sage-soft));border-block:1px solid var(--line)}
.final-path{background:var(--bg-2);border-block:1px solid var(--line)}
.skip-link{position:fixed;z-index:1000;left:16px;top:-80px;background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px}
.skip-link:focus{top:12px}
.inspiration-strip{height:30px;display:flex;align-items:center;justify-content:center;gap:10px;background:var(--champagne);color:var(--ink);font-size:.78rem;font-weight:650;letter-spacing:.02em;white-space:nowrap;overflow:hidden}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--sage);box-shadow:0 0 0 4px rgba(113,134,107,.12)}
.strip-divider{opacity:.65}
.site-header{height:74px;position:sticky;top:0;z-index:90;background:rgba(251,250,244,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);box-shadow:0 8px 24px rgba(93,78,39,.04)}
.header-inner{height:100%;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:max-content}
.brand img{width:40px;height:40px;object-fit:cover;border-radius:12px}
.brand span{display:grid;line-height:1.05}.brand strong{font-size:1.12rem}.brand small{font-size:.68rem;margin-top:4px;letter-spacing:.04em}
.primary-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}
.primary-nav a{position:relative;padding:10px 10px;border-radius:12px;font-size:.88rem;font-weight:650;color:var(--ink-2);transition:background .2s ease,color .2s ease}
.primary-nav a:hover{background:var(--yellow-soft)}
.primary-nav a.active{background:var(--cream);color:var(--ink)}
.primary-nav a.active:after{content:"";position:absolute;left:30%;right:30%;bottom:4px;height:2px;border-radius:2px;background:var(--yellow-dark)}
.header-actions{display:flex;align-items:center;gap:11px;font-size:.8rem;font-weight:650;white-space:nowrap}
.header-actions a:hover{color:var(--yellow-dark)}
.icon-button,.menu-button,.header-actions button{border:1px solid var(--line);background:var(--surface);padding:8px 10px;border-radius:11px;cursor:pointer}
.menu-button{display:none}
.mobile-drawer,.search-layer{position:fixed;z-index:140;inset:0;background:rgba(41,40,33,.25);backdrop-filter:blur(7px);padding:24px}
.mobile-drawer{background:rgba(251,250,244,.98);overflow:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:24px}.drawer-head button{border:1px solid var(--line);background:var(--surface);padding:9px 14px;border-radius:12px;cursor:pointer}
.drawer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.drawer-grid>div{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px}.drawer-grid h2{font-size:1rem;margin-bottom:14px}.drawer-grid a{display:block;padding:8px 0;color:var(--text-2)}
.search-layer{display:flex;align-items:flex-start;justify-content:center;padding-top:11vh}
.search-panel{width:min(680px,100%);background:var(--surface-raised);border:1px solid var(--line);border-radius:24px;padding:26px;box-shadow:var(--shadow-strong)}
.search-form label{display:block;font-weight:700;margin-bottom:10px}.search-line{display:flex;gap:10px}.search-line input{flex:1;min-width:0;border:1px solid var(--line-strong);background:#fff;padding:13px 15px;border-radius:12px}.inline-form{max-width:720px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:11px 18px;border:1px solid var(--yellow-dark);border-radius:12px;background:var(--yellow);color:var(--ink);font-weight:760;cursor:pointer;box-shadow:0 8px 20px rgba(181,140,32,.12);transition:transform .2s ease,box-shadow .2s ease}
.button:hover{transform:translateY(-1px);box-shadow:0 12px 24px rgba(181,140,32,.18)}
.button-ghost{background:transparent;border-color:var(--line-strong);box-shadow:none}
.small-button,.like-button,.rail-controls button{border:1px solid var(--line-strong);background:var(--surface);padding:8px 11px;border-radius:10px;cursor:pointer;font-weight:650}
.small-button[aria-pressed="true"],.like-button[aria-pressed="true"]{background:var(--cream);border-color:var(--champagne)}
.text-link{display:inline-flex;align-items:center;gap:6px;color:#876810;font-weight:720}.text-link:after{content:"→"}.text-link:hover{text-decoration:underline;text-underline-offset:4px}
.eyebrow{display:inline-block;margin-bottom:10px;color:#8b6b13;font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.lead{font-size:clamp(1.03rem,1.8vw,1.28rem);line-height:1.75;max-width:740px;color:var(--ink-2)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}.section-head>div{max-width:820px}.section-head p{margin:.8rem 0 0;max-width:760px}.section-head.mini{margin:18px 0}.section-head.mini h2{font-size:1.5rem}
.media{margin:0}.media img{width:100%;aspect-ratio:var(--ratio,16/9);object-fit:cover;border-radius:var(--radius-card);background:var(--surface-soft);border:1px solid rgba(207,195,160,.4)}.media-caption{font-size:.76rem;color:var(--text-3);margin-top:8px;line-height:1.45}
.page-hero,.detail-hero{padding:54px 0 62px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fffdf8,var(--bg))}.compact-hero{padding-block:48px}.breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:30px;color:var(--text-3);font-size:.78rem}.breadcrumb a:hover{color:var(--yellow-dark)}
.hero-spread{padding:54px 0 66px;background:radial-gradient(circle at 72% 20%,rgba(232,201,90,.2),transparent 32%),var(--bg)}
.hero-grid{display:grid;grid-template-columns:5.4fr 4.2fr 2.4fr;gap:32px;align-items:center}.two-col-hero{grid-template-columns:7fr 5fr;align-items:start}.hero-copy{padding-block:22px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px}.author-line{display:flex;gap:12px;align-items:center;margin-top:22px}.author-line small{display:block}.avatar-mark,.avatar-large{display:grid;place-items:center;background:var(--cream);border:1px solid var(--champagne);font-weight:800}.avatar-mark{width:42px;height:42px;border-radius:50%}.avatar-large{width:56px;height:56px;border-radius:18px;margin-bottom:12px}
.hero-index{align-self:stretch;padding:24px;border:1px solid var(--line);background:rgba(255,255,255,.72);border-radius:var(--radius-card);display:flex;flex-direction:column;gap:10px}.hero-index ol{margin:6px 0 14px;padding-left:22px}.hero-index li{padding:6px 0;border-bottom:1px solid var(--line)}.hero-index>a{padding:5px 0;color:var(--text-2)}.index-stat{display:flex;align-items:baseline;gap:10px;padding:14px 0;border-top:1px solid var(--line)}.index-stat strong{font-size:2rem}.index-stat span{font-size:.78rem;color:var(--text-3)}
.stats-grid{display:grid;grid-template-columns:repeat(8,1fr);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--cream)}.stat-cell{padding:20px 14px;border-right:1px solid rgba(207,195,160,.65)}.stat-cell:last-child{border:0}.stat-cell strong{display:block;font-size:2rem;line-height:1;color:var(--ink)}.stat-cell span{font-size:.78rem;color:var(--text-2)}
.content-card{background:var(--surface-raised);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:0 8px 22px rgba(93,78,39,.04);min-width:0}.content-card .media img{border:0;border-radius:0}.content-card .media-caption{display:none}.card-body{padding:17px}.card-body h3{margin:8px 0 10px}.card-body p{font-size:.9rem;line-height:1.65}.card-foot,.meta-row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.76rem;color:var(--text-3)}.meta-row{justify-content:flex-start;flex-wrap:wrap}.badge{display:inline-flex;align-items:center;min-height:24px;padding:3px 8px;border-radius:999px;font-size:.68rem;font-weight:760}.badge-cream{background:var(--cream);color:#6f5410}.badge-sage{background:var(--sage-soft);color:#50604b}.badge-gold{background:var(--yellow-soft);color:#755a10}
.editorial-collage{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-flow:dense;gap:18px}.editorial-collage .collage-large{grid-column:span 7;grid-row:span 2}.editorial-collage>.content-card,.editorial-collage>.compact-card{grid-column:span 5}.editorial-collage .collage-large .content-card{height:100%}.editorial-collage .collage-large .media img{aspect-ratio:16/11}
.timeline-list{border-top:1px solid var(--line)}.timeline-row{display:grid;grid-template-columns:160px 1fr 150px;gap:24px;padding:20px 8px;border-bottom:1px solid var(--line);position:relative}.timeline-row.is-highlight:before{content:"";position:absolute;left:0;top:15px;bottom:15px;width:3px;background:var(--champagne);border-radius:3px}.timeline-row time,.timeline-author{font-size:.78rem;color:var(--text-3)}.timeline-row p{margin:7px 0 0}.timeline-author{text-align:right}
.topic-band,.split-feature,.reverse-split,.safety-grid,.product-split,.ai-grid,.story-layout,.timeline-layout,.privacy-drawer,.final-path-grid{display:grid;grid-template-columns:5fr 7fr;gap:46px;align-items:center}.topic-band{grid-template-columns:5fr 7fr}.topic-mini-grid{display:grid;grid-template-columns:2fr 1fr;gap:16px;align-items:end}.reverse-split{grid-template-columns:7fr 5fr}.safety-grid{grid-template-columns:5fr 7fr}.ai-grid{grid-template-columns:8fr 4fr}.story-layout{grid-template-columns:5fr 7fr}.final-path-grid{grid-template-columns:8fr 4fr}.final-path-grid>.button,.final-path-grid>.hero-actions{justify-self:end}.feature-visual img{box-shadow:var(--shadow)}
.masonry-grid{columns:4 250px;column-gap:18px}.masonry-grid .content-card{break-inside:avoid;margin-bottom:18px}.masonry-grid .content-card:nth-child(3n) .media img{aspect-ratio:4/5}.masonry-grid .content-card:nth-child(3n+1) .media img{aspect-ratio:16/10}
.rail-controls{display:flex;justify-content:flex-end;gap:8px;margin:-58px 0 16px}.film-rail,.app-screen-rail{display:flex;gap:16px;overflow-x:auto;overscroll-behavior-inline:contain;scroll-snap-type:x mandatory;padding:2px 2px 16px;scrollbar-width:thin}.film-rail>.content-card{flex:0 0 min(285px,78vw);scroll-snap-align:start}.portrait-card .media img{aspect-ratio:3/4}.static-rail{margin-top:4px}.static-rail>.content-card{flex-basis:250px}
.note-list{display:grid;gap:12px}.note-list p{padding:14px 16px;background:var(--surface);border-left:3px solid var(--champagne);margin:0}
.creator-track{display:flex;gap:16px;overflow-x:auto;padding-bottom:12px;scrollbar-width:thin}.creator-card{flex:0 0 250px;border:1px solid var(--line);background:var(--surface-raised);border-radius:var(--radius-card);padding:20px}.creator-card h3{margin-bottom:5px}.tag{display:inline-flex;align-items:center;padding:6px 10px;border:1px solid var(--line-strong);border-radius:999px;background:rgba(255,255,255,.7);font-size:.74rem;color:var(--text-2);margin:4px 5px 4px 0}.quick-tags,.tag-wall{display:flex;flex-wrap:wrap;gap:6px}.tag-wall{gap:10px}.tag-wall .tag{padding:9px 14px;font-size:.82rem;background:var(--surface)}
.series-feature{display:grid;grid-template-columns:7fr 5fr;gap:34px;align-items:center}.note-card,.cooperation-card,.history-demo,.practice-card,.parameter-panel,.compare-card,.annotation-card,.feedback-result{background:var(--surface-raised);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:0 8px 24px rgba(93,78,39,.04)}.note-card strong{display:block;margin-bottom:8px}
.course-grid,.four-grid,.three-grid,.two-grid,.annotation-grid,.response-grid,.export-grid,.notification-grid{display:grid;gap:18px}.course-grid,.four-grid{grid-template-columns:repeat(4,1fr)}.three-grid,.annotation-grid,.response-grid,.notification-grid{grid-template-columns:repeat(3,1fr)}.two-grid{grid-template-columns:repeat(2,1fr)}
.step-board{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden}.step-board article{background:var(--surface-raised);padding:26px}.step-board article>span,.number{display:inline-block;color:#a57c14;font-size:1.7rem;font-weight:850;line-height:1;margin-bottom:18px}.step-board p{margin:8px 0 0}
.workflow-mini{padding-left:22px}.workflow-mini li{padding:8px 0;border-bottom:1px solid var(--line)}.guide-layout{display:grid;grid-template-columns:4fr 8fr;gap:38px}.guide-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.guide-cards article,.annotation-grid article{padding:22px;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-card)}
.story-row{padding:18px 0;border-bottom:1px solid var(--line)}.story-row p{margin:6px 0 0}.vertical-timeline{display:grid;gap:0}.vertical-timeline article{display:grid;grid-template-columns:56px 1fr;gap:16px;position:relative;padding-bottom:22px}.vertical-timeline article>span{position:relative;z-index:1;display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:var(--cream);border:1px solid var(--champagne);font-weight:800}.vertical-timeline article:not(:last-child):after{content:"";position:absolute;left:20px;top:42px;bottom:0;width:1px;background:var(--line-strong)}.vertical-timeline h3{margin:5px 0}.vertical-timeline p{margin:5px 0}
.ranking-list{border-top:1px solid var(--line)}.rank-row{display:grid;grid-template-columns:72px 1fr 150px 120px;align-items:center;gap:20px;padding:16px 8px;border-bottom:1px solid var(--line)}.rank-row>strong{font-size:2rem;color:var(--champagne)}.rank-row p{margin:6px 0 0;font-size:.88rem}.heat-meter{display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px;font-size:.74rem}.heat-meter i{height:5px;border-radius:5px;background:linear-gradient(90deg,var(--yellow-dark) 0 var(--heat),var(--line) var(--heat) 100%)}
.calendar-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.calendar-grid article{padding:18px;border:1px solid var(--line);background:rgba(255,255,255,.7);border-radius:16px}.calendar-grid article>span{display:block;font-size:.75rem;color:var(--text-3)}.calendar-grid article>strong{font-size:1.6rem}.calendar-grid h3{margin:12px 0 8px}.dialogue-layout{display:grid;grid-template-columns:5fr 7fr;gap:42px;align-items:start}.comment-card{margin:0 0 12px;padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}.comment-card p{margin:0 0 10px;color:var(--ink-2)}.comment-card footer{display:flex;align-items:center;gap:5px;flex-wrap:wrap;font-size:.78rem;color:var(--text-3)}.comment-card .like-button{margin-left:auto}
.principle-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:18px}.principle-grid span{padding:12px;text-align:center;background:rgba(255,255,255,.68);border:1px solid var(--line);border-radius:12px;font-size:.82rem;font-weight:700}.cooperation-layout,.favorites-layout{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-item h3{font-size:1rem}.faq-item button{width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 2px;border:0;background:transparent;text-align:left;font-weight:720;cursor:pointer}.faq-answer{padding:0 0 18px;max-width:900px}.faq-answer p{margin:0}
.link-panels,.duration-grid,.category-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.link-panels a,.duration-grid a,.category-wall a,.category-wall>span{display:flex;flex-direction:column;gap:6px;padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:16px;min-height:112px}.link-panels a:hover,.duration-grid a:hover,.category-wall a:hover{border-color:var(--champagne);transform:translateY(-1px)}.link-panels span,.duration-grid span,.category-wall small{font-size:.78rem;color:var(--text-3)}
.playlist-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.playlist-grid article{padding:22px;border:1px solid var(--line);border-radius:var(--radius-card);background:rgba(255,255,255,.7)}
.classroom-layout{display:grid;grid-template-columns:2.2fr 7fr 2.8fr;gap:20px;align-items:start}.course-directory,.practice-card{position:sticky;top:118px}.course-directory{padding:20px;border:1px solid var(--line);border-radius:18px;background:var(--surface)}.course-directory h2{font-size:1.2rem;margin-bottom:12px}.course-directory a{display:block;padding:9px 0;border-bottom:1px solid var(--line);font-size:.85rem}.lecture-main h1{margin-top:20px}.practice-card p{font-size:.88rem}
.workspace-grid{display:grid;grid-template-columns:7fr 2.5fr 2.5fr;gap:18px;align-items:start}.workspace-timeline h1{margin-top:18px}.parameter-panel dl{margin:14px 0 0}.parameter-panel dt{font-size:.7rem;color:var(--text-3);margin-top:12px}.parameter-panel dd{margin:2px 0;font-weight:700}.compare-card span{display:inline-block;font-size:.68rem;font-weight:850;color:#866816;background:var(--cream);padding:4px 7px;border-radius:6px}.compare-card p{font-size:.82rem;margin:8px 0 16px}.file-map{display:grid;gap:8px}.file-map span{display:block;padding:12px 15px;background:rgba(255,255,255,.75);border:1px solid var(--line);border-radius:12px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.82rem}.timeline-editor{padding:24px;background:var(--ink);color:#f7f3e8;border-radius:var(--radius-card);box-shadow:var(--shadow-strong)}.timeline-editor p{color:#d7d1c1;font-size:.78rem}.track{display:flex;gap:4px;margin-bottom:10px}.track span{width:var(--w);padding:10px 6px;background:#e8c95a;color:#292821;border-radius:7px;font-size:.7rem;text-align:center}.track.audio span{background:#9aaa91}.export-grid{grid-template-columns:repeat(4,1fr)}.export-grid article{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:16px}
.workflow-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.workflow-cards article{padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--surface-raised)}.workflow-cards article>span{font-size:1.5rem;color:var(--champagne);font-weight:850}.workflow-cards h3{margin:12px 0 8px}.workflow-cards p{font-size:.84rem}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}.tabs button,.filter-bar button,.filter-bar a{border:1px solid var(--line-strong);background:var(--surface);padding:9px 13px;border-radius:999px;cursor:pointer;font-weight:650}.tabs button[aria-selected="true"],.filter-bar .active{background:var(--cream);border-color:var(--champagne)}.tab-panel[hidden]{display:none}
.filter-bar{display:flex;flex-wrap:wrap;gap:8px}.filter-form{display:grid;grid-template-columns:repeat(3,1fr) auto;gap:12px;align-items:end}.filter-form label{font-size:.78rem;font-weight:720}.filter-form select,.contact-form select,.contact-form input,.contact-form textarea{display:block;width:100%;margin-top:6px;border:1px solid var(--line-strong);background:#fff;padding:11px;border-radius:11px}.pagination{display:flex;flex-wrap:wrap;gap:6px}.pagination a{min-width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);background:var(--surface);border-radius:9px}.pagination a.current{background:var(--cream);border-color:var(--champagne)}.empty-state{padding:46px;border:1px dashed var(--line-strong);border-radius:var(--radius-card);text-align:center;background:var(--surface-raised)}.empty-state h3{font-size:1.35rem;margin-bottom:8px}
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.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:46px;align-items:start}.contact-form{display:grid;gap:14px;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card)}.contact-form label{font-weight:720}.feedback-result{margin-top:22px}.feedback-result p{margin:.45rem 0}.feedback-result small{display:block;margin-top:10px}
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@media(max-width:992px){
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