:root{
    --brand:#C84A5A;--brand-deep:#9f3948;--copper:#D08A48;--ink:#121214;--bg:#17171A;
    --panel:#222226;--panel-soft:#29292e;--text:#F1EEEE;--muted:#A9A3A6;--accent:#E59A3A;
    --line:rgba(241,238,238,.11);--line-strong:rgba(241,238,238,.2);--shadow:0 24px 60px rgba(0,0,0,.28);
    --radius-lg:28px;--radius-md:18px;--max:1180px;--narrow:820px
}
*{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","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.72;-webkit-font-smoothing:antialiased}
body.modal-open{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{color:inherit}
p{margin:0 0 1.1em}
h1,h2,h3{margin:0;color:var(--text);line-height:1.18;letter-spacing:-.02em}
h1{font-size:clamp(2.35rem,6vw,5.3rem);font-weight:800}
h2{font-size:clamp(1.65rem,3.4vw,3rem);font-weight:750}
h3{font-size:1.16rem}
code{background:var(--panel);padding:.15em .42em;border-radius:6px;color:#ffd8a6}
main{min-height:70vh}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.skip-link{position:fixed;left:18px;top:-80px;z-index:9999;background:var(--accent);color:var(--ink);padding:10px 14px;border-radius:8px;font-weight:800}
.skip-link:focus{top:18px}
.content-narrow{max-width:var(--narrow)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;color:#efb078;font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor}
.section{width:min(var(--max),calc(100% - 56px));margin:0 auto;padding:92px 0}
.section-first{padding-top:110px}
.section-heading{max-width:770px;margin-bottom:42px}
.section-heading.compact{margin-bottom:28px}
.section-heading p{margin-top:18px;color:var(--muted);font-size:1.05rem}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 18px;border-radius:999px;font-weight:800;border:1px solid transparent;transition:.2s ease}
.button-primary{background:var(--accent);color:var(--ink)}
.button-primary:hover{transform:translateY(-2px);background:#f0aa53}
.button-secondary{background:var(--brand);color:#fff}
.button-secondary:hover{background:#d55767;transform:translateY(-2px)}
.button-ghost{border-color:var(--line-strong);background:rgba(255,255,255,.025)}
.button-ghost:hover{border-color:var(--accent);color:#ffd39a}
.text-link,.inline-arrow{color:#ffd2a0;font-weight:750}
.text-link:hover,.inline-arrow:hover{text-decoration:underline;text-underline-offset:4px}
.plain-list{padding:0;margin:0;list-style:none}
.plain-list li{position:relative;padding-left:22px;margin:10px 0;color:#d9d4d6}
.plain-list li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--copper)}
.link-cluster{display:flex;flex-wrap:wrap;gap:10px}
.link-cluster a{padding:10px 14px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.025)}
.link-cluster a:hover{border-color:var(--copper);color:#ffd4a9}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:28px;color:var(--muted);font-size:.88rem}
.breadcrumb a:hover{color:var(--text)}
.breadcrumb-sep{opacity:.6}

/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(18,18,20,.88);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.header-shell{width:min(1240px,calc(100% - 40px));height:76px;margin:0 auto;display:flex;align-items:center;gap:26px}
.brand-lockup{display:flex;align-items:center;gap:11px;min-width:max-content}
.brand-lockup img{width:42px;height:42px;object-fit:contain;border-radius:10px}
.brand-lockup span{display:flex;flex-direction:column;line-height:1.1}
.brand-lockup strong{font-size:1.08rem}
.brand-lockup small{margin-top:5px;color:var(--muted);font-size:.7rem}
.site-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.site-nav a{padding:9px 11px;border-radius:10px;color:#d6d1d3;font-size:.92rem}
.site-nav a:hover,.site-nav a[aria-current="page"]{background:var(--panel);color:#fff}
.search-open{border:1px solid var(--line);background:var(--panel);padding:9px 12px;border-radius:10px;cursor:pointer;font-weight:700}
.search-open:hover{border-color:var(--copper)}
.menu-toggle{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:10px;cursor:pointer}
.menu-toggle span:not(.sr-only){display:block;height:2px;background:var(--text);margin:5px 0}

/* Search modal */
.search-modal[hidden]{display:none!important}
.search-modal{position:fixed;inset:0;z-index:120;display:grid;place-items:start center;padding:11vh 24px 24px}
.search-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.72);backdrop-filter:blur(10px)}
.search-dialog{position:relative;width:min(680px,100%);background:var(--panel);border:1px solid var(--line-strong);border-radius:24px;padding:26px;box-shadow:var(--shadow)}
.search-dialog-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}
.search-dialog-head h2{font-size:1.45rem}
.icon-button{width:42px;height:42px;border:1px solid var(--line);border-radius:50%;background:transparent;cursor:pointer;font-size:1.5rem}
.search-form label,.inline-search label{display:block;color:var(--muted);margin-bottom:8px;font-size:.9rem}
.search-row,.inline-search>div{display:flex;gap:10px}
.search-row input,.inline-search input{flex:1;min-width:0;background:var(--ink);border:1px solid var(--line);color:var(--text);border-radius:12px;padding:12px 14px;outline:none}
.search-row input:focus,.inline-search input:focus{border-color:var(--copper);box-shadow:0 0 0 3px rgba(208,138,72,.12)}
.search-row button,.inline-search button{border:0;background:var(--accent);color:var(--ink);font-weight:800;border-radius:12px;padding:0 18px;cursor:pointer}

/* Home */
.home-hero{position:relative;min-height:690px;display:grid;align-items:end;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.82) brightness(.72)}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,18,20,.97) 5%,rgba(18,18,20,.76) 49%,rgba(18,18,20,.3)),linear-gradient(0deg,var(--bg),transparent 34%)}
.hero-copy{position:relative;z-index:2;width:min(var(--max),calc(100% - 56px));margin:0 auto;padding:116px 0 88px}
.hero-copy h1{max-width:900px}
.hero-lead{max-width:760px;margin:26px 0 30px;color:#d7d2d4;font-size:1.12rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:18px;align-items:center}
.hero-domain{position:absolute;z-index:3;right:max(28px,calc((100vw - var(--max))/2));bottom:44px;width:320px;padding:18px 20px;background:rgba(34,34,38,.84);border:1px solid var(--line-strong);border-radius:18px;backdrop-filter:blur(14px)}
.hero-domain span,.hero-domain small{display:block;color:var(--muted)}
.hero-domain strong{display:block;margin:5px 0 4px;font-size:1.12rem}
.hero-domain small{font-size:.78rem}
.section-split{display:grid;grid-template-columns:.88fr 1.12fr;gap:90px;align-items:start}
.prose-stack{font-size:1.06rem;color:#d6d0d2}
.prose-stack p{margin-bottom:18px}
.access-ledger{display:grid;grid-template-columns:1.1fr .9fr;gap:58px;align-items:center;border-top:1px solid var(--line)}
.ledger-visual img{border-radius:var(--radius-lg);box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover}
.ledger-copy h2{margin-bottom:24px}
.intent-list{margin:0}
.intent-list>div{padding:18px 0;border-top:1px solid var(--line)}
.intent-list dt{font-weight:800;color:#ffd2a0}
.intent-list dd{margin:6px 0 0;color:var(--muted)}
.verification-strip{border-top:1px solid var(--line)}
.check-columns{display:grid;grid-template-columns:repeat(3,1fr);margin-bottom:28px;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.check-item{padding:28px;min-height:310px;background:var(--panel)}
.check-item+.check-item{border-left:1px solid var(--line)}
.check-number{display:block;color:var(--copper);font-size:.8rem;letter-spacing:.1em;margin-bottom:60px}
.check-item h3{margin-bottom:13px;font-size:1.3rem}
.check-item p{color:var(--muted);margin:0}
.app-feature{display:grid;grid-template-columns:.88fr 1.12fr;gap:60px;align-items:center;background:linear-gradient(135deg,rgba(200,74,90,.09),transparent 62%);border-block:1px solid var(--line)}
.app-copy p{color:#d1cbcd;margin:20px 0 26px}
.app-visual{margin:0}
.app-visual img{border-radius:var(--radius-lg);aspect-ratio:4/3;object-fit:cover}
.app-visual figcaption{color:var(--muted);font-size:.82rem;margin-top:10px}
.mobile-notes{display:grid;grid-template-columns:.86fr 1.14fr;gap:58px;align-items:center}
.mobile-visual img{border-radius:var(--radius-md);aspect-ratio:4/3;object-fit:cover}
.mobile-copy h2{margin-bottom:18px}
.mobile-copy .plain-list{margin:12px 0 22px}
.editorial-index{border-top:1px solid var(--line)}
.editorial-list{border-top:1px solid var(--line)}
.editorial-row{display:grid;grid-template-columns:72px 120px 1.4fr 1.6fr 40px;gap:24px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
.editorial-number{color:var(--brand);font-weight:900;font-size:1.1rem;letter-spacing:.08em}
.editorial-meta{color:var(--copper);font-size:.78rem;font-weight:800}
.editorial-title{font-weight:800;font-size:1.03rem}
.editorial-summary{color:var(--muted);font-size:.92rem}
.editorial-arrow{text-align:right;font-size:1.4rem;color:var(--accent)}
.editorial-row:hover .editorial-title{color:#ffd1a0}
.name-note{display:grid;grid-template-columns:1.06fr .94fr;gap:60px;align-items:center}
.name-note img{border-radius:50% 50% 24px 24px;aspect-ratio:1.25/1;object-fit:cover}
.name-copy p{color:#d1cbcd;margin:20px 0}
.safety-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:58px;align-items:center;background:var(--panel);border-radius:var(--radius-lg);padding-inline:48px}
.safety-visual img{border-radius:18px;aspect-ratio:4/3;object-fit:cover}
.safety-copy p{color:var(--muted);margin:20px 0}
.submission-quiet{display:grid;grid-template-columns:1fr 1fr;gap:70px;border-top:1px solid var(--line)}
.submission-quiet p{color:var(--muted)}
.faq-preview{display:grid;grid-template-columns:.82fr 1.18fr;gap:58px;align-items:start}
.faq-visual img{border-radius:var(--radius-lg);aspect-ratio:4/3;object-fit:cover}
.faq-preview-list details,.faq-list details{border-top:1px solid var(--line)}
.faq-preview-list details:last-of-type{border-bottom:1px solid var(--line)}
details summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:800}
details summary::-webkit-details-marker{display:none}
details p{color:var(--muted);padding:0 0 18px;margin:0}

.faq-preview-links{border-top:1px solid var(--line);margin-bottom:20px}
.faq-preview-links a{display:flex;justify-content:space-between;gap:18px;padding:17px 0;border-bottom:1px solid var(--line);font-weight:800}
.faq-preview-links a span{color:var(--accent)}
.faq-preview-links a:hover{color:#ffd1a0}

.end-guide{display:grid;grid-template-columns:.9fr 1.1fr;gap:62px;align-items:center;border-top:1px solid var(--line)}
.end-guide-image img{border-radius:var(--radius-lg);aspect-ratio:4/3;object-fit:cover}
.end-guide-copy p{color:var(--muted);margin:20px 0}

/* Shared inner layouts */
.inner-hero{width:min(1280px,calc(100% - 56px));margin:38px auto 0;min-height:510px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:56px;border:1px solid var(--line);border-radius:32px;background:linear-gradient(145deg,var(--panel),rgba(34,34,38,.45));overflow:hidden}
.inner-hero-copy p{margin:22px 0 0;color:#d0cbcd;max-width:700px;font-size:1.04rem}
.inner-hero img{width:100%;height:100%;max-height:420px;object-fit:cover;border-radius:22px}
.domain-badge{display:inline-flex;flex-direction:column;margin-top:26px;padding:14px 18px;background:var(--ink);border-radius:14px;border:1px solid var(--line)}
.domain-badge span{color:var(--muted);font-size:.75rem}
.domain-badge strong{margin-top:4px}
.prose-layout{display:grid;grid-template-columns:280px 1fr;gap:70px;align-items:start}
.prose-aside{position:sticky;top:108px;padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:18px}
.number-list{padding-left:22px;color:#d6d0d2}
.number-list li{margin:12px 0}
.prose-article{max-width:770px}
.prose-article h2{font-size:1.75rem;margin:48px 0 16px}
.prose-article h2:first-child{margin-top:0}
.prose-article p{color:#cec8ca;font-size:1.03rem}
.access-map{border-top:1px solid var(--line)}
.access-map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.access-map-grid a{padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:18px}
.access-map-grid span{color:var(--copper);font-size:.78rem;font-weight:800}
.access-map-grid strong{display:block;margin:16px 0 12px;font-size:1.14rem}
.access-map-grid small{color:var(--muted);font-size:.86rem}
.access-map-grid a:hover{border-color:var(--copper);transform:translateY(-2px)}
.image-text-row{display:grid;grid-template-columns:1fr 1fr;gap:58px;align-items:center}
.image-text-row.reverse{direction:rtl}
.image-text-row.reverse>*{direction:ltr}
.image-text-row img{border-radius:var(--radius-lg);aspect-ratio:4/3;object-fit:cover}
.image-text-row p{color:var(--muted);margin:18px 0}
.notes-stack{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;border-top:1px solid var(--line)}
.notes-stack article{padding:24px;background:var(--panel);border-radius:18px}
.notes-stack h2{font-size:1.3rem;margin-bottom:14px}
.notes-stack p{color:var(--muted);margin:0}
.quiet-callout{display:grid;grid-template-columns:360px 1fr;gap:50px;align-items:center}
.quiet-callout img{border-radius:18px;aspect-ratio:4/3;object-fit:cover}
.quiet-callout p{color:var(--muted);margin:18px 0}

/* App */
.app-steps{border-top:1px solid var(--line)}
.steps-list{border-top:1px solid var(--line)}
.steps-list article{display:grid;grid-template-columns:90px 1fr;gap:28px;padding:28px 0;border-bottom:1px solid var(--line)}
.steps-list>article>span{color:var(--copper);font-weight:800;letter-spacing:.12em}
.steps-list h3{font-size:1.35rem;margin-bottom:8px}
.steps-list p{margin:0;color:var(--muted)}
.mobile-panel{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;background:var(--panel);border-radius:var(--radius-lg);padding-inline:48px}
.mobile-panel figure{margin:0}
.mobile-panel img{border-radius:18px}
.mobile-panel figcaption{color:var(--muted);font-size:.8rem;margin-top:9px}
.mobile-panel p{color:#d0cbcd}
.permission-matrix{border-top:1px solid var(--line)}
.matrix{display:grid;grid-template-columns:repeat(2,1fr);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.matrix>div{padding:24px;background:var(--panel)}
.matrix>div:nth-child(odd){border-right:1px solid var(--line)}
.matrix>div:nth-child(-n+2){border-bottom:1px solid var(--line)}
.matrix strong{display:block;margin-bottom:8px}
.matrix span{color:var(--muted)}
.related-section{border-top:1px solid var(--line)}
.related-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}
.related-item{display:flex;flex-direction:column;padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:18px}
.related-item .eyebrow{margin-bottom:10px}
.related-item strong{margin-bottom:10px}
.related-item>span:last-child{color:var(--muted);font-size:.9rem}
.related-item:hover{border-color:var(--copper)}

/* Submit and guide */
.submit-status{padding-top:62px}
.status-card{display:flex;gap:20px;align-items:flex-start;background:rgba(229,154,58,.08);border:1px solid rgba(229,154,58,.26);padding:26px;border-radius:18px}
.status-dot{width:12px;height:12px;margin-top:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 8px rgba(229,154,58,.12)}
.status-card h2{font-size:1.55rem;margin-bottom:9px}
.status-card p{color:#d1cbcd;margin:0}
.submission-principles{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.submission-principles article{padding:25px;border-top:3px solid var(--brand);background:var(--panel)}
.submission-principles h2{font-size:1.28rem;margin-bottom:13px}
.submission-principles p{color:var(--muted);margin:0}
.material-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.material-grid>div{padding:26px;background:var(--panel);border-radius:18px}
.material-grid h3{margin-bottom:14px}
.guide-timeline{border-top:1px solid var(--line)}
.timeline{max-width:920px}
.timeline article{display:grid;grid-template-columns:86px 1fr;gap:26px;padding:24px 0;border-bottom:1px solid var(--line)}
.timeline-index{color:var(--brand);font-weight:900;font-size:1.2rem}
.timeline h3{font-size:1.3rem;margin-bottom:8px}
.timeline p{margin:0;color:var(--muted)}
.search-guide{display:grid;grid-template-columns:1fr .8fr;gap:60px;align-items:center;background:var(--panel);border-radius:var(--radius-lg);padding-inline:48px}
.search-guide p{color:var(--muted);margin:18px 0}
.search-guide img{border-radius:18px;aspect-ratio:4/3;object-fit:cover}
.inline-search{margin-top:22px}
.route-table{border-top:1px solid var(--line)}
.route-list{border-top:1px solid var(--line)}
.route-list a{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding:19px 0;border-bottom:1px solid var(--line)}
.route-list span{color:var(--muted)}
.route-list a:hover strong{color:#ffd1a0}

/* FAQ, about, safety, privacy, contact */
.faq-full{display:grid;grid-template-columns:280px 1fr;gap:70px;align-items:start}
.faq-index{position:sticky;top:108px;padding:22px;background:var(--panel);border-radius:18px}
.faq-index p{color:var(--muted)}
.faq-index a{display:block;padding:8px 0;color:#ffd0a0}
.faq-list details{padding:0 4px}
.faq-list summary{font-size:1.08rem;display:flex;gap:16px}
.faq-list summary span{color:var(--copper);font-size:.8rem;min-width:34px;margin-top:3px}
.faq-list p{padding-left:50px;max-width:780px}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.about-grid article{min-height:300px;padding:28px;background:var(--panel);border:1px solid var(--line);border-radius:18px}
.about-grid h2{font-size:1.55rem;margin-bottom:18px}
.about-grid p{color:var(--muted);margin:0}
.about-route{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;border-top:1px solid var(--line)}
.safety-checklist{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:24px;overflow:hidden}
.safety-checklist article{display:grid;grid-template-columns:58px 1fr;gap:18px;padding:28px;background:var(--panel)}
.safety-checklist article:nth-child(odd){border-right:1px solid var(--line)}
.safety-checklist article:nth-child(-n+2){border-bottom:1px solid var(--line)}
.safety-checklist>article>span{color:var(--copper);font-weight:900}
.safety-checklist h2{font-size:1.4rem;margin-bottom:8px}
.safety-checklist p{color:var(--muted);margin:0}
.privacy-sections{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.privacy-sections article{padding:28px;background:var(--panel);border-radius:18px}
.privacy-sections article:last-child{grid-column:1/-1}
.privacy-sections h2{font-size:1.45rem;margin-bottom:13px}
.privacy-sections p{color:var(--muted);margin:0}
.contact-guidance{display:grid;grid-template-columns:1.3fr .7fr;gap:50px;align-items:start}
.contact-main h2{margin-bottom:20px}
.contact-main p{color:#d0cbcd}
.contact-guidance aside{padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:18px}
.contact-links{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;border-top:1px solid var(--line)}
.contact-links a{padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:18px}
.contact-links strong{display:block;margin-bottom:8px}
.contact-links span{color:var(--muted);font-size:.9rem}
.contact-links a:hover{border-color:var(--copper)}

/* Article */
.article-shell{width:min(1120px,calc(100% - 56px));margin:0 auto;padding:64px 0 100px}
.article-header{max-width:900px;margin:0 auto 36px}
.article-header h1{font-size:clamp(2.3rem,5vw,4.6rem)}
.article-deck{margin-top:22px;color:#d0cbcd;font-size:1.08rem;max-width:800px}
.article-cover{margin:0 0 56px}
.article-cover img{width:100%;max-height:650px;object-fit:cover;border-radius:30px}
.article-body{max-width:760px;margin:0 auto}
.article-body section{margin:0 0 48px}
.article-body h2{font-size:1.72rem;margin-bottom:16px}
.article-body p{color:#d2ccce;font-size:1.04rem}
.article-note{max-width:760px;margin:50px auto;padding:22px 24px;background:rgba(208,138,72,.08);border-left:3px solid var(--copper)}
.article-note p{margin:8px 0 0;color:var(--muted)}
.article-footer{margin-top:70px;padding-top:50px;border-top:1px solid var(--line)}

/* Search and 404 */
.search-page-head{width:min(var(--narrow),calc(100% - 56px));margin:0 auto;padding:86px 0 20px}
.search-page-head h1{font-size:clamp(2.2rem,5vw,4.2rem)}
.search-page-head p{color:var(--muted);margin:18px 0}
.search-results{padding-top:40px}
.result-count{color:var(--muted)}
.result-list{border-top:1px solid var(--line)}
.result-list a{display:grid;grid-template-columns:1fr 1.4fr .8fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--line);align-items:start}
.result-list span,.result-list small{color:var(--muted)}
.result-list small{text-align:right;word-break:break-all}
.result-list a:hover strong{color:#ffd1a0}
.empty-state{padding:34px;background:var(--panel);border-radius:18px}
.empty-state h2{font-size:1.55rem;margin-bottom:12px}
.empty-state p{color:var(--muted)}
.notfound-shell{width:min(1000px,calc(100% - 56px));margin:0 auto;min-height:66vh;display:grid;grid-template-columns:.6fr 1.4fr;gap:60px;align-items:center;padding:80px 0}
.error-code{font-size:clamp(6rem,18vw,13rem);font-weight:900;color:rgba(200,74,90,.28);line-height:.8}
.notfound-shell p{color:var(--muted);margin:18px 0 24px}

/* Footer */
.site-footer{border-top:1px solid var(--line);background:var(--ink)}
.footer-shell{width:min(var(--max),calc(100% - 56px));margin:0 auto;padding:62px 0;display:grid;grid-template-columns:1.8fr .7fr .7fr;gap:60px}
.footer-brand{font-size:1.4rem;font-weight:900}
.footer-intro p{max-width:560px;color:var(--muted);margin-top:14px}
.footer-group{display:flex;flex-direction:column;gap:9px}
.footer-group h2{font-size:.9rem;color:#e4dcdf;margin-bottom:6px}
.footer-group a{color:var(--muted);font-size:.9rem}
.footer-group a:hover{color:var(--text)}
.footer-bottom{width:min(var(--max),calc(100% - 56px));margin:0 auto;padding:18px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:#817b7e;font-size:.78rem}
.back-top{position:fixed;right:22px;bottom:22px;z-index:70;width:46px;height:46px;border-radius:50%;border:1px solid var(--line-strong);background:var(--panel);opacity:0;transform:translateY(12px);pointer-events:none;transition:.2s ease;cursor:pointer}
.back-top.is-visible{opacity:1;transform:none;pointer-events:auto}

/* Responsive */
@media(max-width:1200px){
    .hero-domain{right:28px}
    .section,.hero-copy,.footer-shell,.footer-bottom{width:min(calc(100% - 48px),var(--max))}
    .inner-hero{width:calc(100% - 48px);padding:44px}
    .editorial-row{grid-template-columns:64px 100px 1.3fr 1.5fr 30px}
}
@media(max-width:1024px){
    .site-nav{position:absolute;left:20px;right:20px;top:68px;display:none;flex-direction:column;align-items:stretch;padding:12px;background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
    .site-nav.is-open{display:flex}
    .site-nav a{padding:11px 12px}
    .menu-toggle{display:block}
    .hero-domain{display:none}
    .hero-copy{padding-top:100px}
    .section-split,.access-ledger,.app-feature,.mobile-notes,.name-note,.safety-panel,.faq-preview,.end-guide,.inner-hero,.image-text-row,.mobile-panel,.search-guide{grid-template-columns:1fr}
    .inner-hero img{max-height:360px}
    .section-split,.access-ledger,.app-feature,.mobile-notes,.name-note,.faq-preview,.end-guide{gap:38px}
    .check-columns{grid-template-columns:1fr}
    .check-item{min-height:auto}
    .check-item+.check-item{border-left:0;border-top:1px solid var(--line)}
    .check-number{margin-bottom:20px}
    .editorial-row{grid-template-columns:56px 100px 1fr 30px}
    .editorial-summary{display:none}
    .submission-quiet,.prose-layout,.faq-full,.contact-guidance{grid-template-columns:1fr}
    .prose-aside,.faq-index{position:static}
    .access-map-grid,.notes-stack,.submission-principles,.related-list,.contact-links{grid-template-columns:1fr}
    .quiet-callout{grid-template-columns:280px 1fr}
    .search-guide img{order:-1}
    .result-list a{grid-template-columns:1fr 1.4fr}
    .result-list small{grid-column:1/-1;text-align:left}
}
@media(max-width:768px){
    .header-shell{width:calc(100% - 28px);height:68px;gap:10px}
    .brand-lockup small{display:none}
    .brand-lockup img{width:38px;height:38px}
    .search-open{font-size:.82rem;padding:8px 10px}
    .section,.hero-copy,.footer-shell,.footer-bottom,.article-shell,.search-page-head,.notfound-shell{width:calc(100% - 36px)}
    .section{padding:68px 0}
    .section-first{padding-top:78px}
    .home-hero{min-height:620px}
    .hero-copy{padding-bottom:58px}
    .hero-lead{font-size:1rem}
    .inner-hero{width:calc(100% - 28px);padding:28px;margin-top:20px;min-height:auto;border-radius:24px}
    .inner-hero-copy p{font-size:.98rem}
    .access-map-grid,.matrix,.material-grid,.about-grid,.safety-checklist,.privacy-sections{grid-template-columns:1fr}
    .matrix>div,.safety-checklist article{border:0!important;border-bottom:1px solid var(--line)!important}
    .matrix>div:last-child,.safety-checklist article:last-child{border-bottom:0!important}
    .privacy-sections article:last-child{grid-column:auto}
    .editorial-row{grid-template-columns:52px 1fr 28px;gap:14px}
    .editorial-number{grid-column:1;grid-row:1/3;align-self:center}
    .editorial-meta{grid-column:2}
    .editorial-title{grid-column:2}
    .editorial-arrow{grid-column:3;grid-row:1/3}
    .safety-panel,.mobile-panel,.search-guide{padding-inline:24px}
    .quiet-callout{grid-template-columns:1fr}
    .quiet-callout img{width:100%}
    .route-list a{grid-template-columns:1fr;gap:6px}
    .about-route{grid-template-columns:1fr}
    .article-shell{padding-top:44px}
    .article-cover{margin-bottom:40px}
    .faq-list p{padding-left:0}
    .footer-shell{grid-template-columns:1fr 1fr;gap:34px}
    .footer-intro{grid-column:1/-1}
    .notfound-shell{grid-template-columns:1fr;gap:26px}
    .error-code{font-size:7rem}
}
@media(max-width:600px){
    h1{font-size:2.45rem}
    h2{font-size:1.78rem}
    .section{width:calc(100% - 28px);padding:56px 0}
    .hero-copy{width:calc(100% - 28px)}
    .hero-actions{align-items:flex-start;flex-direction:column}
    .home-hero{min-height:650px}
    .hero-media img{object-position:62% center}
    .hero-shade{background:linear-gradient(90deg,rgba(18,18,20,.97) 0%,rgba(18,18,20,.82) 70%,rgba(18,18,20,.58)),linear-gradient(0deg,var(--bg),transparent 30%)}
    .check-item{padding:22px}
    .steps-list article,.timeline article{grid-template-columns:50px 1fr;gap:16px}
    .search-row,.inline-search>div{flex-direction:column}
    .search-row button,.inline-search button{min-height:46px}
    .submission-quiet{gap:26px}
    .article-header h1{font-size:2.35rem}
    .footer-shell{grid-template-columns:1fr}
    .footer-intro{grid-column:auto}
    .footer-bottom{flex-direction:column;gap:4px}
}
@media(max-width:375px){
    .brand-lockup strong{font-size:.98rem}
    .search-open{display:none}
    .menu-toggle{margin-left:auto}
    .hero-copy{padding-top:82px}
    .button{width:100%}
    .inner-hero{padding:22px}
    .section-heading{margin-bottom:30px}
    .link-cluster{flex-direction:column}
    .link-cluster a{text-align:center}
}