:root{--bg:#fff8f8;--paper:#fff;--soft:#fbe9ec;--ink:#351c23;--body:#4b3037;--muted:#76545f;--accent:#c9365b;--footer:#321c24;--line:#edd8de}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--body);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.82;font-size:16px;overflow-x:hidden}img{max-width:100%;height:auto;display:block}a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{text-decoration-thickness:2px}.shell{width:min(1160px,calc(100% - 40px));margin-inline:auto}.skip{position:absolute;left:-9999px;top:8px;background:#fff;color:var(--ink);padding:10px 14px;z-index:50}.skip:focus{left:8px}.site-header{background:var(--paper);border-bottom:1px solid var(--line)}.masthead{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}.brand-logo{width:auto;height:auto;max-width:160px;max-height:42px;object-fit:contain}.brand-mark{font-size:24px;font-weight:800;letter-spacing:.08em}.brand-en{font-size:13px;letter-spacing:.18em;color:var(--muted)}.mast-side{display:flex;gap:18px;align-items:center;color:var(--muted);font-size:14px}.browse-toggle{display:none}.main-nav{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.nav-row{display:flex;align-items:center;gap:6px;min-height:52px}.nav-row a,.all-toggle,.browse-toggle{display:inline-flex;align-items:center;min-height:44px;padding:8px 13px;border:1px solid transparent;background:transparent;color:var(--ink);font:inherit;text-decoration:none;border-radius:8px;cursor:pointer}.nav-row a[aria-current=page]{color:var(--accent);border-color:var(--line);background:var(--bg)}.all-toggle{margin-left:auto;border-color:var(--line)}.mobile-shortcuts{display:none}.all-menu{background:var(--bg);border-bottom:1px solid var(--line)}.menu-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding-block:24px 30px}.menu-grid h2{font-size:15px;margin:0 0 8px;color:var(--ink)}.menu-grid a{display:block;padding:7px 0;color:var(--body);text-decoration:none;border-bottom:1px solid var(--line)}main{min-height:55vh}.crumb-wrap{padding-top:22px}.crumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px}.crumb a{color:var(--muted)}.page-head{padding:34px 0 18px}.page-head h1,.hero h1{font-size:clamp(28px,3vw,38px);line-height:1.25;color:var(--ink);margin:0 0 14px}.lead{max-width:760px;font-size:17px;color:var(--muted)}.section{padding:46px 0;border-top:1px solid var(--line)}.section:first-of-type{border-top:0}.section h2{font-size:clamp(21px,2.2vw,27px);line-height:1.35;color:var(--ink);margin:0 0 18px}.section h3{font-size:19px;color:var(--ink);margin:28px 0 10px}.prose{max-width:760px}.prose p{margin:0 0 18px}.hero{padding:42px 0 54px}.hero-grid,.split{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:32px;align-items:center}.split.reverse{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr)}.image-frame{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:12px;display:flex;align-items:center;justify-content:center;min-width:0}.content-image{width:auto;height:auto;max-width:100%;max-height:400px;object-fit:contain;object-position:center}.banner-image{width:auto;height:auto;max-width:100%;max-height:320px;object-fit:contain;margin-inline:auto}.compact-image{width:auto;height:auto;max-width:100%;max-height:220px;object-fit:contain;margin-inline:auto}.side-image{width:auto;height:auto;max-width:100%;max-height:170px;object-fit:contain;margin-inline:auto}.app-image{width:auto;height:auto;max-width:240px;max-height:360px;object-fit:contain;margin-inline:auto}.icon-image{width:auto;height:auto;max-width:44px;max-height:44px;object-fit:contain}.caption{font-size:13px;color:var(--muted);margin-top:10px;text-align:center}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}.text-card{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:22px}.text-card h3{margin-top:0}.index-list{display:grid;gap:0;border-top:1px solid var(--line)}.index-row{display:grid;grid-template-columns:180px 1fr auto;gap:20px;align-items:start;padding:18px 0;border-bottom:1px solid var(--line)}.index-row h3{margin:0}.eyebrow{font-size:13px;color:var(--accent);letter-spacing:.08em;text-transform:uppercase}.links-line{display:flex;gap:16px;flex-wrap:wrap;margin-top:16px}.quote-note{border-left:3px solid var(--accent);padding:2px 0 2px 18px;color:var(--muted)}.site-footer{margin-top:56px;background:var(--footer);color:#f8e9ed;padding:44px 0 26px}.footer-top{display:grid;grid-template-columns:.8fr 2.2fr;gap:38px}.site-footer a{color:#fff}.footer-brand-link{color:#fff}.footer-brand p{max-width:360px;color:#e8ced5}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.footer-links h2{font-size:15px;color:#fff;margin:0 0 10px}.footer-links a{display:block;padding:5px 0;font-size:14px;text-decoration:none}.footer-note{border-top:1px solid rgba(255,255,255,.16);margin-top:28px;padding-top:18px;color:#dcbfc7;font-size:13px}button:focus-visible,a:focus-visible{outline:3px solid rgba(201,54,91,.35);outline-offset:3px}@media(max-width:900px){.hero-grid,.split,.split.reverse,.footer-top{grid-template-columns:1fr}.grid-3{grid-template-columns:1fr 1fr}.menu-grid{grid-template-columns:1fr 1fr}.mast-side{display:none}.main-nav{display:none}.browse-toggle{display:inline-flex;border-color:var(--line)}.mobile-shortcuts{display:flex;gap:10px;padding-block:8px;border-top:1px solid var(--line)}.mobile-shortcuts a{flex:1;text-align:center;padding:8px 6px;text-decoration:none;color:var(--body)}.footer-links{grid-template-columns:1fr 1fr}.index-row{grid-template-columns:140px 1fr}.index-row>a{grid-column:2}}@media(max-width:640px){.shell{width:calc(100% - 32px)}body{font-size:15.5px}.masthead{min-height:76px}.brand-logo{max-width:130px;max-height:38px}.brand-mark{font-size:21px}.brand-en{font-size:11px}.menu-grid,.grid-2,.grid-3,.footer-links{grid-template-columns:1fr}.hero{padding:30px 0 38px}.section{padding:32px 0}.index-row{grid-template-columns:1fr;gap:7px}.index-row>a{grid-column:auto}.content-image{max-height:300px}.compact-image{max-height:200px}.banner-image{max-height:220px}.app-image{max-width:200px}.text-card{padding:18px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}