:root{--brand:#2F8F83;--accent:#F2B36F;--dark:#243331;--bg:#FAFCFA;--bg2:#EEF5F2;--text:#2E3836;--muted:#71807C;--hot:#E96B4C;--line:#D9E5E0;--shadow:0 18px 50px rgba(36,51,49,.10);--r:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7}img{max-width:100%;display:block}a{color:inherit}.shell{width:min(1180px,calc(100% - 40px));margin:auto}.skip{position:absolute;left:-9999px;top:10px;background:#fff;padding:10px 14px;z-index:100}.skip:focus{left:10px}.site-header{position:sticky;top:0;z-index:50;background:rgba(250,252,250,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,229,224,.75)}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none}.brand img{width:42px;height:42px;object-fit:contain}.brand span{display:grid}.brand strong{font-size:18px;color:var(--dark)}.brand small{color:var(--muted);font-size:12px}.site-nav{display:flex;align-items:center;gap:8px}.site-nav a{padding:10px 14px;border-radius:999px;text-decoration:none;color:#42514e}.site-nav a:hover,.site-nav a.is-active{background:var(--bg2);color:var(--brand)}.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:9px 12px}.hero{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:54px;padding-top:72px;padding-bottom:50px}.eyebrow{display:inline-flex;color:var(--brand);font-weight:750;font-size:13px;letter-spacing:.08em;text-transform:uppercase}.hero h1,.page-hero h1{font-size:clamp(38px,5vw,68px);line-height:1.08;margin:16px 0 20px;color:var(--dark);letter-spacing:-.045em}.hero p,.page-hero 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span{font-size:13px;color:var(--muted)}.poster-stack{position:relative;min-height:460px}.poster-stack>img{width:80%;height:420px;object-fit:cover;border-radius:28px;box-shadow:var(--shadow)}.poster-card{position:absolute;right:0;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 18px;box-shadow:var(--shadow);display:grid}.poster-card:nth-of-type(1){top:90px}.poster-card:nth-of-type(2){top:180px}.poster-card span{font-size:12px;color:var(--muted)}.web-callout,.next-link{display:flex;align-items:center;justify-content:space-between;gap:40px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:34px 38px}.web-callout p,.desktop-copy p,.next-link p,.app-showcase p{color:var(--muted)}.desktop-tease{display:grid;grid-template-columns:.85fr 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p{margin:0;color:var(--muted)}.clean-list{padding-left:18px}.clean-list li{margin:8px 0}.compact-list{display:grid;gap:12px}.compact-list article{display:grid;grid-template-columns:130px 1fr;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);padding:10px;border-radius:16px}.compact-list img{width:130px;height:92px;object-fit:cover;border-radius:12px}.compact-list h3{margin:0}.compact-list p{margin:4px 0;color:var(--muted)}.compact-list span{font-size:12px;color:var(--brand)}.desktop-points{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.desktop-points article{padding:28px;background:#fff;border:1px solid var(--line);border-radius:20px}.desktop-points article>span{font-weight:800;color:var(--accent);font-size:26px}.desktop-points h2{font-size:22px;color:var(--dark)}.timeline{display:grid;gap:12px;margin-top:24px}.timeline div{display:grid;grid-template-columns:140px 1fr;gap:14px;border-bottom:1px solid #cfdcd7;padding-bottom:12px}.timeline span{color:var(--muted)}.table-like{display:grid;border-top:1px solid var(--line)}.table-like>div{display:grid;grid-template-columns:56px 1fr 160px 2fr;gap:18px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}.table-like .num{color:var(--muted)}.table-like strong{color:var(--dark)}.table-like p{margin:0;color:var(--muted);font-size:14px}.app-showcase{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.mobile-stack{display:grid;gap:16px;max-width:900px}.mobile-stack article{display:grid;grid-template-columns:150px 1fr;gap:18px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px}.mobile-cover img{width:150px;height:120px;object-fit:cover;border-radius:12px}.mobile-stack h3{margin:4px 0}.mobile-stack p{margin:4px 0 10px;color:var(--muted)}.site-footer{background:var(--dark);color:#fff;margin-top:70px;padding:50px 0 24px}.footer-grid{display:grid;grid-template-columns:1fr auto;gap:40px}.footer-grid p{color:#c3d2ce;max-width:560px}.footer-grid>div:last-child{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 22px}.footer-grid a{color:#eaf3f0;text-decoration:none}.footer-bottom{margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#9fb3ad;font-size:13px}@media(max-width:980px){.show-grid{grid-template-columns:repeat(2,1fr)}.hero,.page-hero,.split,.desktop-tease,.app-showcase{grid-template-columns:1fr}.hero-note{left:18px}.poster-stack{min-height:360px}.poster-stack>img{height:340px}.desktop-points{grid-template-columns:1fr}.table-like>div{grid-template-columns:44px 1fr 120px}.table-like p{grid-column:2/-1}.footer-grid{grid-template-columns:1fr}}@media(max-width:720px){.shell{width:min(100% - 28px,1180px)}.header-inner{min-height:66px}.menu-toggle{display:block}.site-nav{position:absolute;left:14px;right:14px;top:68px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;display:none;box-shadow:var(--shadow)}.site-nav.is-open{display:grid}.site-nav a{border-radius:10px}.hero{padding-top:42px;gap:28px}.hero h1,.page-hero h1{font-size:38px}.hero p,.page-hero p{font-size:16px}.hero-note{position:static;margin-top:12px}.intro-strip{grid-template-columns:1fr;padding:8px 18px}.intro-strip div{padding:14px 4px;border-right:0;border-bottom:1px solid rgba(255,255,255,.12)}.intro-strip div:last-child{border-bottom:0}.section{padding-top:48px;padding-bottom:48px}.section-head{display:block}.show-grid{grid-template-columns:1fr}.genre-list{grid-template-columns:1fr}.poster-card{position:static;margin-top:10px}.poster-stack>img{width:100%}.web-callout,.next-link{display:grid;padding:24px}.app-mini{grid-template-columns:auto 1fr}.app-mini .btn{grid-column:1/-1}.feature-grid,.app-note-grid{grid-template-columns:1fr}.compact-list article{grid-template-columns:94px 1fr}.compact-list img{width:94px;height:76px}.table-like>div{grid-template-columns:40px 1fr}.table-like>div>span:nth-of-type(2){grid-column:2}.table-like p{grid-column:2}.mobile-stack article{grid-template-columns:92px 1fr}.mobile-cover img{width:92px;height:110px}.footer-grid>div:last-child{grid-template-columns:1fr}.site-footer{margin-top:44px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
/* Extended component system for real content variation */
.badge-row{display:flex;flex-wrap:wrap;gap:8px}.badge-row span{padding:6px 10px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:12px}.info-band{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}.info-band>div{background:#fff;padding:20px}.info-band strong{display:block;color:var(--dark)}.info-band span{font-size:13px;color:var(--muted)}.quote-block{border-left:4px solid var(--accent);padding:20px 24px;background:#fff;border-radius:0 18px 18px 0}.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.mini-grid>div{background:linear-gradient(180deg,#fff,#f7faf8);border:1px solid var(--line);padding:18px;border-radius:16px}.mini-grid h3{margin:0 0 6px;font-size:17px}.mini-grid p{margin:0;color:var(--muted);font-size:14px}.content-rail{display:flex;gap:14px;overflow:auto;padding-bottom:8px;scroll-snap-type:x proximity}.content-rail article{min-width:280px;scroll-snap-align:start;border:1px solid var(--line);background:#fff;border-radius:18px;padding:16px}.content-rail::-webkit-scrollbar{height:8px}.content-rail::-webkit-scrollbar-thumb{background:#cddbd6;border-radius:999px}.notice{padding:18px 20px;border-radius:16px;background:#fff8ef;border:1px solid #f0d8b9}.notice strong{color:#9b5f26}.stateless-tabs{display:flex;flex-wrap:wrap;gap:8px}.stateless-tabs a{padding:10px 13px;background:#fff;border:1px solid var(--line);border-radius:12px;text-decoration:none}.stateless-tabs a:hover{border-color:var(--brand);color:var(--brand)}.focus-card:focus-within{outline:3px solid rgba(47,143,131,.22);outline-offset:2px}@media(max-width:760px){.info-band{grid-template-columns:1fr 1fr}.mini-grid{grid-template-columns:1fr}}
.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.guide-grid article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}.guide-grid h3{margin:0 0 10px;color:var(--dark);font-size:21px;line-height:1.35}.guide-grid p{color:#5d6b68;margin:10px 0}.guide-grid .lead{font-weight:650;color:#394845}.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.scenario-grid article{padding:18px;border:1px solid var(--line);border-radius:16px;background:#fff}.scenario-grid strong{display:block;color:var(--dark);margin-bottom:4px}.scenario-grid span{display:block;color:var(--brand);font-size:13px}.scenario-grid p{color:var(--muted);font-size:14px;margin-bottom:0}.reading-columns{columns:2;column-gap:32px}.reading-columns p{break-inside:avoid;margin-top:0}.soft-panel{background:linear-gradient(135deg,#eef5f2,#fff9f2);border:1px solid var(--line);border-radius:24px;padding:28px}.soft-panel h2{margin-top:0;color:var(--dark)}.kicker-number{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800}.device-compare{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:20px;overflow:hidden}.device-compare article{padding:24px;background:#fff;border-right:1px solid var(--line)}.device-compare article:last-child{border-right:0}.device-compare h3{margin-top:0;color:var(--dark)}.device-compare p{color:var(--muted)}.micro-copy{font-size:12px;color:var(--muted);letter-spacing:.02em}.content-divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:28px 0}.link-cluster{display:flex;flex-wrap:wrap;gap:10px}.link-cluster a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;text-decoration:none;font-size:13px}.link-cluster a:hover{border-color:var(--brand);color:var(--brand)}.sticky-note{position:sticky;top:100px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:18px}.prose-layout{display:grid;grid-template-columns:260px 1fr;gap:36px;align-items:start}.prose-layout .prose h2{color:var(--dark);margin-top:0}.prose-layout .prose h3{color:var(--dark);margin-top:30px}.prose-layout .prose p{color:#55635f}.marker-list{display:grid;gap:10px}.marker-list div{display:grid;grid-template-columns:12px 1fr;gap:10px}.marker-list div:before{content:"";width:8px;height:8px;margin-top:9px;border-radius:50%;background:var(--accent)}.media-frame{overflow:hidden;border-radius:22px;border:1px solid var(--line);background:#fff}.media-frame img{width:100%;aspect-ratio:16/9;object-fit:cover}.media-frame figcaption{padding:12px 16px;color:var(--muted);font-size:13px}.action-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.action-row strong{color:var(--dark)}.action-row span{color:var(--muted);font-size:13px}.small-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.small-cards div{padding:14px;border-radius:14px;background:#fff;border:1px solid var(--line)}.small-cards b{display:block;color:var(--dark)}.small-cards span{font-size:12px;color:var(--muted)}.contrast-panel{background:var(--dark);color:#fff;border-radius:24px;padding:30px}.contrast-panel h2{color:#fff;margin-top:0}.contrast-panel p{color:#c8d7d3}.contrast-panel a{color:#fff}.image-missing{opacity:.25;background:var(--bg2);min-height:120px}.show-card a:focus-visible,.btn:focus-visible,.site-nav a:focus-visible,.menu-toggle:focus-visible,.text-link:focus-visible{outline:3px solid rgba(233,107,76,.35);outline-offset:3px}@media(max-width:900px){.guide-grid{grid-template-columns:1fr}.scenario-grid{grid-template-columns:1fr 1fr}.device-compare{grid-template-columns:1fr}.device-compare article{border-right:0;border-bottom:1px solid var(--line)}.prose-layout{grid-template-columns:1fr}.sticky-note{position:static}.small-cards{grid-template-columns:1fr 1fr}}@media(max-width:620px){.scenario-grid,.small-cards{grid-template-columns:1fr}.reading-columns{columns:1}.action-row{display:grid}.guide-grid article{padding:20px}}
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 18px}.faq-list summary{cursor:pointer;list-style:none;padding:18px 32px 18px 0;font-weight:750;color:var(--dark);position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:0;top:15px;width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:var(--bg2);color:var(--brand);font-size:20px}.faq-list details[open] summary:after{content:"−"}.faq-list p{margin:0;padding:0 0 18px;color:var(--muted)}.deep-guide-list{display:grid;gap:20px}.deep-guide-list article{display:grid;grid-template-columns:minmax(220px,.75fr) minmax(0,2fr);gap:28px;padding:24px 0;border-bottom:1px solid var(--line)}.deep-guide-list h3{margin:0;color:var(--dark);font-size:21px;line-height:1.4}.deep-guide-list p{margin:0;color:#56645f}.reading-metric{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}.reading-metric:before{content:"";width:34px;height:4px;border-radius:999px;background:var(--accent)}.topic-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.topic-pills span{padding:5px 9px;border-radius:999px;background:var(--bg2);color:var(--brand);font-size:12px}.faq-list details:focus-within{outline:3px solid rgba(47,143,131,.16);outline-offset:2px}@media(max-width:760px){.faq-list{grid-template-columns:1fr}.deep-guide-list article{grid-template-columns:1fr;gap:10px}}
.extra-note-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.extra-note-list article{padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:18px}.extra-note-list h3{margin:0 0 8px;color:var(--dark);font-size:18px;line-height:1.4}.extra-note-list p{margin:0;color:var(--muted);font-size:14px}.extra-note-list article:nth-child(3n){background:linear-gradient(180deg,#fff,#f4f9f6)}.extra-note-list article:nth-child(4n){border-top:3px solid var(--accent)}@media(max-width:760px){.extra-note-list{grid-template-columns:1fr}}