:root{
  --gold:#D9A21B;--gold-soft:#F1C96A;--ink:#2B261D;--bg:#FFFDF7;--bg-soft:#F7F1E3;--text:#302D28;--muted:#756F64;--accent:#E9673F;--line:#E7DEC9;--surface:#FFF9EA;--shadow:0 18px 45px rgba(63,49,20,.10);--radius:22px;--shell:min(1180px,calc(100% - 40px));
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.shell{width:var(--shell);margin-inline:auto}.narrow{max-width:860px}.section{padding:74px 0}.section-tight{padding-top:48px}.eyebrow{margin:0 0 10px;color:#9A6B00;font-weight:800;letter-spacing:.08em;font-size:.88rem;text-transform:uppercase}.lead{font-size:1.18rem;line-height:1.85;color:#514B42;max-width:820px}h1,h2,h3{color:var(--ink);line-height:1.25;margin-top:0}h1{font-size:clamp(2.2rem,5vw,4.5rem);letter-spacing:-.04em;margin-bottom:22px}h2{font-size:clamp(1.6rem,3vw,2.65rem);letter-spacing:-.025em;margin-bottom:16px}h3{font-size:1.15rem;margin-bottom:8px}p{margin-top:0}.skip-link{position:fixed;left:12px;top:12px;z-index:1000;background:var(--ink);color:#fff;padding:10px 14px;border-radius:9px;transform:translateY(-160%)}.skip-link:focus{transform:none}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,253,247,.94);border-bottom:1px solid rgba(217,162,27,.16);backdrop-filter:blur(14px)}.header-row{min-height:76px;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:11px;min-width:240px}.brand img{width:44px;height:44px;object-fit:cover;border-radius:13px;background:var(--bg-soft)}.brand span{display:grid}.brand strong{font-size:1.05rem}.brand small{font-size:.76rem;color:var(--muted)}.primary-nav{display:flex;align-items:center;gap:5px;margin-left:auto}.primary-nav a{padding:10px 12px;border-radius:11px;font-size:.92rem;color:#554E43}.primary-nav a:hover,.primary-nav a[aria-current="page"]{background:var(--bg-soft);color:var(--ink)}.search-button,.menu-button,.icon-button{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:12px;padding:10px 13px}.menu-button{display:none}.search-button:hover,.menu-button:hover{border-color:var(--gold)}.home-intro{overflow:hidden}.home-intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.intro-copy{padding:30px 0}.hero-figure{margin:0;position:relative}.hero-figure img{border-radius:32px 32px 120px 32px;box-shadow:var(--shadow);background:var(--bg-soft);aspect-ratio:19/14;object-fit:cover}.hero-figure figcaption{max-width:76%;margin:-36px 0 0 24px;position:relative;background:var(--ink);color:#fff;padding:18px 22px;border-radius:16px;font-size:.9rem}.action-row{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border-radius:13px;font-weight:800}.button-primary{background:var(--accent);color:#fff}.button-primary:hover{filter:brightness(.96)}.button-ghost{border:1px solid var(--line);background:#fff}.button-dark{background:var(--ink);color:#fff}.intro-facts{display:flex;flex-wrap:wrap;gap:22px;margin:34px 0 0}.intro-facts div{min-width:140px}.intro-facts dt{font-size:.78rem;color:var(--muted)}.intro-facts dd{margin:2px 0 0;font-weight:800}.access-strip{background:var(--bg-soft);border-block:1px solid var(--line)}.split-heading,.compact-head,.wide-section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:30px}.split-heading>div,.wide-section-head>div{max-width:720px}.split-heading>p,.compact-head>p,.wide-section-head>p{max-width:390px;color:var(--muted);margin-bottom:8px}.access-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:14px}.access-grid a{padding:26px;border:1px solid var(--line);background:#fff;border-radius:18px;display:grid;gap:7px}.access-grid a:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.access-grid strong{font-size:1.12rem}.access-grid span{color:var(--muted);font-size:.92rem}.access-grid .access-main{background:var(--ink);color:#fff;border-color:var(--ink)}.access-grid .access-main span{color:#E8E0D0}.watch-focus{padding-top:90px}.watch-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:48px;align-items:start}.watch-copy{position:sticky;top:110px}.check-list{padding:0;margin:22px 0;list-style:none}.check-list li{padding:10px 0 10px 28px;position:relative;border-bottom:1px solid var(--line)}.check-list li:before{content:"✓";position:absolute;left:0;color:#9B6E00;font-weight:900}.dense-index{border-top:1px solid var(--line)}.dense-index a{display:grid;grid-template-columns:170px 1fr;gap:22px;padding:21px 4px;border-bottom:1px solid var(--line)}.dense-index a:hover strong{color:#9B6E00}.dense-index span{color:var(--muted);font-size:.92rem}.editorial-band{background:var(--ink);color:#F8F2E6}.editorial-band h2{color:#fff}.editorial-band-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}.editorial-band figure{margin:0}.editorial-band img{border-radius:18px 80px 18px 18px;aspect-ratio:34/23;object-fit:cover}.editorial-band p:not(.eyebrow){color:#DDD4C2}.reading-picks{background:#fff}.article-rows{border-top:1px solid var(--line)}.article-row{display:grid;grid-template-columns:180px minmax(260px,.75fr) 1fr;gap:26px;padding:24px 0;border-bottom:1px solid var(--line);align-items:start}.article-row-meta{display:flex;gap:7px;flex-wrap:wrap}.article-row-meta span,.article-cards>article>span,.two-column-list article>span,.search-result-list article>span{font-size:.75rem;border:1px solid var(--line);border-radius:999px;padding:3px 8px;color:#7E650D}.article-row h3{font-size:1.18rem}.article-row h3 a:hover,.two-column-list h3 a:hover,.index-list a:hover strong{color:#9A6B00}.article-row p{color:var(--muted);font-size:.92rem;margin:0}.app-ribbon{padding:56px 0}.app-ribbon-grid{background:var(--surface);border:1px solid #EFDEAC;border-radius:28px;display:grid;grid-template-columns:1fr 410px;gap:40px;align-items:center;padding:34px 42px;overflow:hidden}.app-ribbon img{border-radius:22px;max-height:270px;width:100%;object-fit:cover}.text-link{font-weight:750;color:#8B6200}.text-link:hover{text-decoration:underline}.text-link.strong{font-weight:900}.topic-rail{background:var(--bg-soft)}.topic-rail-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;align-items:stretch}.topic-rail-copy{padding:20px 28px 20px 0}.topic-link{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden}.topic-link img{aspect-ratio:21/13;object-fit:cover}.topic-link span{display:grid;padding:18px}.topic-link small{color:var(--muted)}.closing-map-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}.closing-links{border-top:1px solid var(--line)}.closing-links a{display:grid;grid-template-columns:230px 1fr;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}.closing-links span{color:var(--muted);font-size:.92rem}.breadcrumbs{padding:20px 0 0}.breadcrumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:.83rem}.breadcrumbs li:not(:last-child):after{content:"/";margin-left:8px;color:#B3AA9A}.breadcrumbs a:hover{color:#8B6200}.two-column-hero,.watch-hero-grid,.category-hero-grid,.app-hero-grid,.ai-hero-grid,.remix-hero-grid,.guide-hero-grid,.faq-hero-grid,.about-hero-grid,.contact-hero-grid,.privacy-hero-grid,.safety-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.two-column-hero img,.watch-hero-grid img,.category-hero-grid img,.app-hero-grid img,.ai-hero-grid img,.remix-hero-grid img,.guide-hero-grid img,.faq-hero-grid img,.about-hero-grid img,.contact-hero-grid img,.privacy-hero-grid img,.safety-hero-grid img{border-radius:26px;aspect-ratio:3/2;object-fit:cover;background:var(--bg-soft)}.prose-grid{display:grid;grid-template-columns:1fr 300px;gap:60px;align-items:start}.prose{font-size:1.03rem}.prose h2{margin-top:38px;font-size:1.65rem}.prose p{color:#4F4A42}.prose a{color:#8B6200;text-decoration:underline;text-underline-offset:3px}.prose code{background:var(--bg-soft);padding:2px 6px;border-radius:6px}.side-note{position:sticky;top:110px;background:var(--bg-soft);border:1px solid var(--line);border-radius:20px;padding:24px}.side-note h2{font-size:1.2rem}.side-note a{display:block;padding:11px 0;border-bottom:1px solid var(--line);font-size:.92rem}.category-directory{background:var(--bg-soft)}.category-columns{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line)}.category-columns a{display:grid;grid-template-columns:52px 1fr;gap:15px;padding:24px 18px;border-bottom:1px solid var(--line)}.category-columns a:nth-child(odd){border-right:1px solid var(--line)}.category-index{font-weight:900;color:#A27508}.category-columns span:last-child{display:grid;gap:4px}.category-columns small{color:var(--muted)}.watch-method-grid{display:grid;grid-template-columns:1fr .85fr;gap:58px;align-items:center}.watch-method figure{margin:0}.watch-method img{border-radius:24px;aspect-ratio:3/2;object-fit:cover}.watch-method figcaption{font-size:.82rem;color:var(--muted);margin-top:8px}.two-column-list{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line)}.two-column-list article{padding:22px 26px 22px 0;border-bottom:1px solid var(--line)}.two-column-list article:nth-child(odd){border-right:1px solid var(--line);padding-right:30px}.two-column-list article:nth-child(even){padding-left:30px}.two-column-list p{color:var(--muted);font-size:.91rem}.next-step{background:var(--ink);color:#EAE2D3}.next-step h2{color:#fff}.next-step-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.next-step nav{display:grid;grid-template-columns:1fr 1fr;gap:10px}.next-step nav a{padding:14px 16px;border:1px solid #5A5041;border-radius:12px;background:#352F26;color:#fff}.index-hero{padding-bottom:36px}.index-group{border-top:1px solid var(--line);padding:54px 0}.index-group:nth-of-type(even){background:var(--bg-soft)}.index-group-grid{display:grid;grid-template-columns:320px 1fr;gap:50px;align-items:start}.index-group-intro{position:sticky;top:105px}.index-group-intro img{border-radius:18px;margin-bottom:20px;aspect-ratio:42/29;object-fit:cover}.index-list{border-top:1px solid var(--line)}.index-list a{display:grid;grid-template-columns:1fr 1.2fr;gap:20px;padding:14px 0;border-bottom:1px solid var(--line)}.index-list span{font-size:.88rem;color:var(--muted)}.signal-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:25px}.signal-tags span{padding:6px 10px;border-radius:999px;background:var(--bg-soft);border:1px solid var(--line);font-size:.83rem}.category-reading{background:var(--bg-soft)}.article-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.article-cards article{background:#fff;border:1px solid var(--line);border-radius:17px;padding:20px}.article-cards p{color:var(--muted);font-size:.9rem}.compact-cards article:nth-child(5n+1){grid-column:span 2}.category-close{padding:54px 0}.category-close .next-step-grid{background:var(--ink);color:#E8E0D1;border-radius:24px;padding:32px}.category-close h2{color:#fff}.category-close nav a{border-color:#5B5142}.number-steps{counter-reset:step;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.number-steps li{background:var(--bg-soft);border:1px solid var(--line);border-radius:20px;padding:24px}.number-steps strong{display:block;margin-bottom:8px}.number-steps p{color:var(--muted);font-size:.91rem}.app-scenarios{background:var(--bg-soft)}.app-scenarios-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.app-scenarios-grid>div{padding:30px;border-radius:22px;background:#fff;border:1px solid var(--line)}.metric-list{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line)}.metric-list article{padding:22px 18px;border-right:1px solid var(--line)}.metric-list article:last-child{border-right:0}.metric-list strong{font-size:1.8rem;color:#B17D00}.metric-list p{font-size:.9rem;color:var(--muted)}.ai-reading{background:var(--ink);color:#EAE3D7}.ai-reading h2{color:#fff}.ai-reading-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.ai-reading img{border-radius:24px}.scale-table{border-top:1px solid var(--line)}.scale-table>div{display:grid;grid-template-columns:200px 1fr;gap:30px;padding:24px 0;border-bottom:1px solid var(--line)}.remix-note{background:var(--bg-soft)}.guide-timeline{background:var(--bg-soft)}.guide-timeline ol{list-style:none;padding:0;margin:0}.guide-timeline li{display:grid;grid-template-columns:90px 1fr;gap:30px;padding:28px 0;border-bottom:1px solid var(--line)}.guide-timeline li>span{font-weight:900;font-size:1.9rem;color:#A47507}.guide-timeline h2{font-size:1.45rem}.faq-wrap{max-width:900px}.faq-item{border-bottom:1px solid var(--line)}.faq-item h2{margin:0}.faq-item button{width:100%;border:0;background:transparent;text-align:left;padding:22px 0;display:flex;justify-content:space-between;gap:20px;color:var(--ink);font-weight:850}.faq-item button span{font-size:1.4rem}.faq-answer{padding:0 50px 22px 0;color:var(--muted)}.js .faq-item [data-faq-answer][hidden]{display:none}.three-column-text{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.three-column-text article,.contact-grid article{border-top:3px solid var(--gold);background:var(--bg-soft);padding:26px;border-radius:0 0 18px 18px}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.privacy-hero,.contact-note{background:var(--bg-soft)}.safety-list{background:var(--bg-soft)}.safety-row{display:grid;grid-template-columns:90px 1fr;gap:22px;padding:28px 0;border-bottom:1px solid var(--line)}.safety-row>strong{font-size:2rem;color:#AA7600}.search-page-head{padding-bottom:35px}.search-form{display:grid;gap:8px}.search-input-row{display:grid;grid-template-columns:1fr auto;gap:8px}.search-input-row input{width:100%;border:1px solid var(--line);background:#fff;padding:13px 14px;border-radius:12px;outline:none}.search-input-row input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(217,162,27,.13)}.search-input-row button{border:0;background:var(--accent);color:#fff;border-radius:12px;padding:0 18px;font-weight:800}.search-results{padding-top:28px}.result-count{color:var(--muted)}.search-result-list article{padding:22px 0;border-bottom:1px solid var(--line)}.search-result-list h2{font-size:1.25rem;margin:8px 0}.search-result-list p{color:var(--muted)}.empty-state{background:var(--bg-soft);border:1px solid var(--line);padding:34px;border-radius:22px}.detail-header{max-width:980px}.intent-note{background:var(--bg-soft);border-left:4px solid var(--gold);padding:14px 18px;border-radius:0 12px 12px 0}.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}.detail-body{max-width:760px}.detail-image{margin:0 0 34px}.detail-image img{border-radius:24px;aspect-ratio:38/25;object-fit:cover}.detail-body section{padding:7px 0 18px}.detail-body h2{font-size:1.65rem;margin-top:20px}.detail-body p{font-size:1.02rem;color:#48433C}.detail-aside{position:sticky;top:106px;background:var(--bg-soft);border:1px solid var(--line);padding:22px;border-radius:20px;display:grid;gap:10px}.detail-aside h2{font-size:1.15rem}.detail-aside>a:not(.text-link){padding:9px 0;border-bottom:1px solid var(--line);font-size:.88rem}.detail-aside hr{border:0;border-top:1px solid var(--line);width:100%}.not-found{text-align:center;min-height:65vh;display:grid;place-items:center}.search-modal[hidden]{display:none !important}.search-modal{position:fixed;inset:0;z-index:999;display:grid;place-items:start center;padding-top:10vh}.search-backdrop{position:absolute;inset:0;background:rgba(43,38,29,.62);backdrop-filter:blur(4px)}.search-dialog{position:relative;width:min(680px,calc(100% - 30px));background:var(--bg);border-radius:22px;padding:26px;box-shadow:0 24px 80px rgba(0,0,0,.26)}.search-dialog-head{display:flex;justify-content:space-between;gap:20px;align-items:center}.search-dialog-head h2{font-size:1.4rem;margin:0}.icon-button{font-size:1.5rem;line-height:1;width:42px;height:42px}.microcopy{font-size:.82rem;color:var(--muted);margin:12px 0 0}.no-scroll{overflow:hidden}.site-footer{background:#241F18;color:#E9E1D3;padding:60px 0 18px}.site-footer h2{color:#fff;font-size:1.05rem}.site-footer p,.site-footer a{color:#C8BEAD;font-size:.88rem}.site-footer a:hover{color:#fff}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:46px}.footer-grid ul{list-style:none;padding:0;margin:0}.footer-grid li{margin:8px 0}.footer-bottom{margin-top:38px;padding-top:18px;border-top:1px solid #4C4438;display:flex;justify-content:space-between;color:#AFA493;font-size:.8rem}.back-top{position:fixed;right:18px;bottom:18px;border:1px solid var(--line);background:#fff;color:var(--ink);width:44px;height:44px;border-radius:50%;box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s}.back-top.is-visible{opacity:1;pointer-events:auto;transform:none}
@media (max-width:1024px){:root{--shell:min(94vw,980px)}.primary-nav{position:absolute;left:3vw;right:3vw;top:70px;background:var(--bg);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;padding:12px;display:none;flex-wrap:wrap}.primary-nav.is-open{display:flex}.menu-button{display:inline-flex;margin-left:auto}.search-button{margin-left:0}.home-intro-grid,.watch-layout,.editorial-band-grid,.closing-map-grid,.two-column-hero,.watch-hero-grid,.category-hero-grid,.app-hero-grid,.ai-hero-grid,.remix-hero-grid,.guide-hero-grid,.faq-hero-grid,.about-hero-grid,.contact-hero-grid,.privacy-hero-grid,.safety-hero-grid,.prose-grid,.watch-method-grid,.ai-reading-grid,.detail-layout{grid-template-columns:1fr}.watch-copy,.side-note,.index-group-intro,.detail-aside{position:static}.access-grid{grid-template-columns:1fr 1fr}.access-main{grid-column:1/-1}.topic-rail-grid{grid-template-columns:1fr 1fr}.topic-rail-copy{grid-column:1/-1}.metric-list{grid-template-columns:1fr 1fr 1fr}.metric-list article{border-bottom:1px solid var(--line)}.number-steps{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.index-group-grid{grid-template-columns:260px 1fr}.article-row{grid-template-columns:150px 1fr}.article-row p{grid-column:2}.article-cards{grid-template-columns:1fr 1fr}.compact-cards article:nth-child(5n+1){grid-column:span 1}}
@media (max-width:768px){:root{--shell:calc(100% - 28px)}.section{padding:54px 0}.header-row{min-height:68px;gap:8px}.brand{min-width:0}.brand small{display:none}.brand img{width:40px;height:40px}.search-button{font-size:.82rem;padding:9px}.menu-button{font-size:.82rem;padding:9px}.home-intro-grid{gap:24px}.hero-figure figcaption{max-width:92%;margin:-24px 0 0 14px}.split-heading,.compact-head,.wide-section-head{display:block}.access-grid,.topic-rail-grid,.app-ribbon-grid,.next-step-grid,.app-scenarios-grid,.three-column-text,.contact-grid{grid-template-columns:1fr}.app-ribbon-grid{padding:24px}.dense-index a{grid-template-columns:1fr;gap:4px}.article-row{grid-template-columns:1fr;gap:8px}.article-row p{grid-column:auto}.category-columns{grid-template-columns:1fr}.category-columns a:nth-child(odd){border-right:0}.two-column-list{grid-template-columns:1fr}.two-column-list article:nth-child(odd){border-right:0;padding-right:0}.two-column-list article:nth-child(even){padding-left:0}.closing-links a{grid-template-columns:1fr;gap:4px}.index-group-grid{grid-template-columns:1fr}.index-list a{grid-template-columns:1fr;gap:5px}.article-cards{grid-template-columns:1fr}.metric-list{grid-template-columns:1fr}.metric-list article{border-right:0}.scale-table>div{grid-template-columns:1fr;gap:6px}.number-steps{grid-template-columns:1fr}.guide-timeline li,.safety-row{grid-template-columns:58px 1fr;gap:14px}.footer-grid{grid-template-columns:1fr 1fr;gap:26px}.detail-aside{display:none}.action-row{align-items:stretch}.button{flex:1 1 180px}}
@media (max-width:600px){h1{font-size:2.2rem}.lead{font-size:1.05rem}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:grid;gap:8px}.intro-facts{display:grid;grid-template-columns:1fr 1fr}.app-ribbon img{max-height:none}.next-step nav{grid-template-columns:1fr}.search-input-row{grid-template-columns:1fr}.search-input-row button{min-height:46px}.topic-link img{width:100%}}
@media (max-width:375px){:root{--shell:calc(100% - 22px)}.brand strong{font-size:.95rem}.search-button{display:none}.section{padding:44px 0}.intro-facts{grid-template-columns:1fr}.faq-answer{padding-right:0}}