:root{--primary:#6C4FF8;--primary-soft:#9B8AFB;--ink:#252331;--muted:#716E7E;--deep:#1E1B2E;--bg:#F7F6FB;--surface:#fff;--soft:#EEEAF8;--accent:#F06A8A;--line:#ded9eb;--radius:24px;--shadow:0 18px 46px rgba(35,28,74,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.72}img{display:block;max-width:100%;height:auto;border-radius:20px}a{color:inherit;text-decoration:none}a:hover{color:var(--primary)}button,input{font:inherit}.shell{width:min(1180px,calc(100% - 40px));margin-inline:auto}.narrow{width:min(820px,calc(100% - 40px))}.skip-link{position:absolute;left:-9999px;top:auto}.skip-link:focus{left:16px;top:16px;z-index:99;background:#fff;padding:10px 14px;border-radius:10px;box-shadow:var(--shadow)}
.site-header{position:sticky;top:0;z-index:40;background:rgba(247,246,251,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(222,217,235,.8)}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;gap:11px}.brand img{width:42px;height:42px;object-fit:cover;border-radius:12px}.brand span{display:grid;line-height:1.1}.brand strong{font-size:1.04rem}.brand small{margin-top:5px;color:var(--muted)}.site-nav{display:flex;align-items:center;gap:8px}.site-nav a{padding:9px 12px;border-radius:999px;color:var(--muted)}.site-nav a:hover,.site-nav a[aria-current=page]{background:var(--soft);color:var(--deep)}.menu-toggle{display:none;border:0;background:var(--deep);color:#fff;border-radius:10px;padding:9px 12px}
.hero{display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center;padding-block:76px 58px}.hero-copy h1,.article-hero h1,.page-intro h1{margin:.2em 0 .35em;color:var(--deep);font-size:clamp(2.4rem,5vw,4.7rem);line-height:1.04;letter-spacing:-.045em}.eyebrow{margin:0 0 10px;color:var(--primary);font-weight:800;letter-spacing:.08em;text-transform:uppercase;font-size:.8rem}.lead{font-size:1.16rem;color:#4f4a61;max-width:760px}.actions{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:14px;background:var(--primary);color:#fff;font-weight:750;box-shadow:0 12px 26px rgba(108,79,248,.18)}.button:hover{color:#fff;transform:translateY(-1px)}.button.secondary{background:var(--deep);box-shadow:none}.text-link{font-weight:750;color:var(--primary)}.hero-media{margin:0;padding:14px;background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow)}.hero-media img{aspect-ratio:1.45/1;object-fit:cover}.hero-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:32px 0 0}.hero-facts div{padding:15px;border-top:1px solid var(--line)}.hero-facts dt{font-size:.78rem;color:var(--muted)}.hero-facts dd{margin:4px 0 0;font-weight:700}.section{padding-block:64px}.split-primary{display:grid;grid-template-columns:1.25fr .75fr;gap:64px}.split-primary h2,.section-heading h2,.content-band h2,.topic-strip h2,.prose h2,.faq-section h2{margin:.1em 0 .55em;font-size:clamp(1.7rem,3vw,2.6rem);line-height:1.18;color:var(--deep)}.split-primary p,.prose p{font-size:1.04rem}.side-panel{background:var(--deep);color:#fff;padding:26px;border-radius:22px}.side-panel h3{margin-top:0}.compact-links{list-style:none;padding:0;margin:0;display:grid;gap:9px}.compact-links li a{display:grid;gap:2px;padding:13px;border-radius:14px;background:rgba(255,255,255,.06)}.compact-links span{font-size:.88rem;color:#c8c3d9}.inline-card{margin-top:25px;display:grid;gap:5px;padding:20px;border:1px solid var(--line);background:#fff;border-radius:18px}.inline-card span{font-size:.78rem;color:var(--accent);font-weight:800}.soft-section{background:var(--soft);padding:60px 0}.content-band{display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center}.content-band.reverse{grid-template-columns:.94fr 1.06fr}.content-band.mini{margin-block:62px;padding:34px;border-radius:28px;background:var(--soft);grid-template-columns:.86fr 1.14fr}.content-band img{width:100%;max-height:430px;object-fit:cover}.device-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.device-card{padding:26px;background:#fff;border:1px solid var(--line);border-radius:20px}.device-card h3{margin-top:0;color:var(--deep)}.device-card ul{padding-left:18px;color:var(--muted)}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:26px}.topic-strip{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;background:#fff;border:1px solid var(--line);padding:34px;border-radius:28px}.faq-list{display:grid;gap:10px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 18px}.faq-list summary{cursor:pointer;font-weight:750;padding:16px 0;color:var(--deep)}.faq-list details div{padding:0 0 16px;color:var(--muted)}
.site-footer{margin-top:72px;background:var(--deep);color:#fff}.footer-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:34px;padding-block:42px}.footer-grid p,.footer-note{color:#bdb7ca}.footer-grid nav{display:grid;gap:8px}.footer-grid nav a{color:#ddd8e8}.breadcrumb{display:flex;gap:8px;flex-wrap:wrap;padding-top:28px;color:var(--muted);font-size:.9rem}.article-layout{padding-bottom:20px}.article-hero{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;padding:44px 0 38px}.article-hero h1,.page-intro h1{font-size:clamp(2.25rem,4.5vw,4.1rem)}.article-hero img{width:100%;aspect-ratio:1.45/1;object-fit:cover}.reading-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:54px}.prose{font-size:1.02rem}.prose section{padding:18px 0 30px;border-bottom:1px solid var(--line)}.prose h3{color:var(--deep)}.prose a{color:var(--primary);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}.reading-aside{position:relative}.sticky-card{position:sticky;top:100px;background:var(--deep);color:#fff;border-radius:20px;padding:22px}.sticky-card h2{margin-top:0;font-size:1.25rem}.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.check-grid>div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.check-grid h3{margin-top:0}.page-intro{padding:46px 0 34px}.official-visual{background:var(--soft);padding-block:54px}.note-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.note-grid article{padding:24px;border:1px solid var(--line);background:#fff;border-radius:18px}.note-grid h2{font-size:1.18rem;margin-top:0}.wide{max-width:900px;margin:40px auto}.device-detail-list{display:grid;gap:18px}.device-detail{display:grid;grid-template-columns:80px 1fr;gap:18px;padding:26px;background:#fff;border:1px solid var(--line);border-radius:20px}.device-number{font-size:2rem;font-weight:900;color:var(--primary-soft)}.device-detail h2{margin-top:0}.soft-card{background:var(--soft);padding:28px;border-radius:24px}.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.path-grid a{display:grid;gap:6px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:18px}.path-grid span{color:var(--muted)}.topic-articles{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.topic-articles article{padding:25px;background:#fff;border:1px solid var(--line);border-radius:20px}.topic-articles h2{margin-top:0}.topic-articles .summary{font-weight:700;color:#4b465a}.search-page{padding-bottom:50px}.search-form{background:#fff;padding:22px;border:1px solid var(--line);border-radius:18px}.search-form label{display:block;font-weight:750;margin-bottom:8px}.search-form div{display:flex;gap:10px}.search-form input{flex:1;min-width:0;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:var(--bg)}.search-form button{border:0;border-radius:12px;background:var(--primary);color:#fff;padding:0 18px;font-weight:750}.search-results{padding-top:30px}.search-results ul{list-style:none;padding:0;display:grid;gap:12px}.search-results li a{display:grid;gap:5px;padding:19px;background:#fff;border:1px solid var(--line);border-radius:16px}.search-results span{color:var(--muted)}.empty-state,.notice-page{padding:34px;background:#fff;border:1px solid var(--line);border-radius:20px}.notice-page{margin-block:70px}.notice-page h1{font-size:clamp(2rem,5vw,4rem);margin:.2em 0}
@media (max-width:900px){.menu-toggle{display:block}.site-nav{display:none;position:absolute;top:68px;left:20px;right:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;padding:10px;flex-direction:column;align-items:stretch}.site-nav.open{display:flex}.site-nav a{padding:12px 14px}.hero,.article-hero,.split-primary,.content-band,.content-band.reverse,.content-band.mini,.topic-strip,.reading-grid{grid-template-columns:1fr}.hero{padding-top:50px}.hero-media{max-width:680px}.reading-aside{display:none}.device-row,.topic-articles,.path-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-note{grid-column:1/-1}.content-band.mini{padding:24px}.official-visual .content-band img{order:2}}
@media (max-width:620px){.shell,.narrow{width:min(100% - 28px,1180px)}.header-inner{min-height:68px}.brand small{display:none}.hero{gap:28px;padding-block:38px}.hero-copy h1{font-size:2.45rem}.hero-facts{grid-template-columns:1fr}.section{padding-block:46px}.section-heading{align-items:start;flex-direction:column}.device-row,.note-grid,.topic-articles,.path-grid,.check-grid,.footer-grid{grid-template-columns:1fr}.topic-strip{padding:24px}.article-hero{gap:24px}.device-detail{grid-template-columns:1fr}.device-number{font-size:1rem}.search-form div{flex-direction:column}.search-form button{min-height:44px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.help-columns{display:grid;gap:26px}.help-section{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px}.help-section h2{margin:0 0 14px;color:var(--deep);font-size:1.6rem}.help-section p{margin:0;padding:12px 0;border-top:1px solid #eeeaf5}.help-section p:first-of-type{border-top:0}.site-footer:before{content:"";display:block;height:1px;background:rgba(255,255,255,.08)}
.issue-index{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 34px}.issue-index a{background:#fff;border:1px solid var(--line);padding:9px 13px;border-radius:999px;font-weight:700;color:var(--muted)}.issue-group{padding:24px 0 40px;border-top:1px solid var(--line)}.issue-group>h2{font-size:clamp(1.6rem,3vw,2.4rem);color:var(--deep)}.issue-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}.issue-list article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.issue-list h3{margin:0 0 10px;color:var(--deep);font-size:1.08rem}.issue-list p{margin:0;color:#575164}@media(max-width:720px){.issue-list{grid-template-columns:1fr}}