:root {
    --brand: #C84A5A;
    --copper: #D08A48;
    --ink: #121214;
    --bg: #17171A;
    --panel: #222226;
    --panel-soft: #1d1d21;
    --text: #F1EEEE;
    --muted: #A9A3A6;
    --accent: #E59A3A;
    --line: rgba(241, 238, 238, .12);
    --line-strong: rgba(241, 238, 238, .2);
    --max: 1180px;
    --reading: 820px;
    --radius: 22px;
    --shadow: 0 28px 70px rgba(0, 0, 0, .28);
}

* { 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;
    -webkit-font-smoothing: antialiased;
}
body.modal-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
a:hover { color: #fff; }
img { display: block; max-width: 100%; height: auto; }
button, input { font: inherit; }
button { color: inherit; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: rgba(255,255,255,.08); padding: .15em .4em; border-radius: 6px; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 999; transform: translateY(-160%); padding: 10px 14px; background: var(--accent); color: var(--ink); border-radius: 8px; font-weight: 800; }
.skip-link:focus { transform: translateY(0); }
.shell { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.narrow-shell { width: min(calc(100% - 48px), 900px); }
.section { margin-top: 92px; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-size: .82rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.lead { font-size: clamp(1.06rem, 1.8vw, 1.28rem); line-height: 1.75; color: #d7d2d4; }
.text-link { color: #f3bd78; font-weight: 700; border-bottom: 1px solid rgba(229,154,58,.45); padding-bottom: 2px; }
.text-link:hover { color: var(--accent); border-color: var(--accent); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 18px; border-radius: 999px; font-weight: 800; transition: transform .18s ease, background .18s ease, border-color .18s ease; }
.button:hover { transform: translateY(-1px); }
.button.primary { background: var(--accent); color: var(--ink); }
.button.secondary { border: 1px solid rgba(229,154,58,.42); background: rgba(229,154,58,.08); color: #ffd59d; }
.inline-links { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 22px; }
.inline-links a { color: #e8b474; font-weight: 700; }
.inline-links a:hover { color: #fff; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(18,18,20,.92); border-bottom: 1px solid rgba(255,255,255,.07); backdrop-filter: blur(14px); }
.header-shell { min-height: 76px; width: min(calc(100% - 48px), var(--max)); margin-inline: auto; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: max-content; }
.brand img { width: 42px; height: 42px; object-fit: contain; }
.brand-copy { display: grid; line-height: 1.1; }
.brand-copy strong { font-size: 1.18rem; letter-spacing: .03em; }
.brand-copy small { margin-top: 6px; color: var(--muted); font-size: .72rem; }
.desktop-nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.desktop-nav a { padding: 9px 12px; border-radius: 9px; color: #cbc5c7; font-size: .92rem; }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"] { color: #fff; background: rgba(255,255,255,.065); }
.header-actions { display: flex; align-items: center; gap: 8px; }
.header-actions button { border: 1px solid var(--line); background: transparent; border-radius: 999px; padding: 8px 13px; cursor: pointer; }
.header-actions button:hover { border-color: rgba(229,154,58,.6); color: #ffd59d; }
.menu-toggle { display: none; }
.mobile-nav { width: min(calc(100% - 32px), var(--max)); margin: 0 auto 14px; padding: 10px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; }
.mobile-nav a { display: block; padding: 11px 12px; border-radius: 8px; color: #d8d3d5; }
.mobile-nav a[aria-current="page"] { background: rgba(200,74,90,.14); color: #fff; }

.search-modal[hidden] { display: none !important; }
.search-modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: start center; padding: 13vh 24px 24px; }
.search-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.7); backdrop-filter: blur(8px); }
.search-panel { position: relative; width: min(100%, 680px); padding: 34px; border-radius: 24px; background: #202024; border: 1px solid rgba(255,255,255,.14); box-shadow: var(--shadow); }
.search-panel h2 { margin: 0 0 8px; font-size: clamp(1.5rem, 3vw, 2.2rem); }
.search-panel > p:not(.eyebrow) { color: var(--muted); }
.search-close { position: absolute; right: 16px; top: 12px; width: 40px; height: 40px; border: 0; background: transparent; font-size: 1.9rem; color: var(--muted); cursor: pointer; }
.search-form { display: flex; gap: 10px; margin-top: 22px; }
.search-form input { min-width: 0; flex: 1; height: 48px; padding: 0 15px; color: var(--text); background: #151518; border: 1px solid var(--line-strong); border-radius: 12px; outline: none; }
.search-form input:focus { border-color: rgba(229,154,58,.65); box-shadow: 0 0 0 3px rgba(229,154,58,.08); }
.search-form button { border: 0; padding: 0 19px; border-radius: 12px; background: var(--accent); color: var(--ink); font-weight: 800; cursor: pointer; }
.search-form.large input { height: 54px; }
.search-form.large button { min-width: 92px; }

.home-intro { min-height: 690px; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .72fr); gap: 64px; align-items: center; padding-block: 72px 54px; }
.intro-copy h1 { max-width: 770px; margin: 0; font-size: clamp(2.5rem, 5vw, 5.3rem); line-height: 1.03; letter-spacing: -.055em; }
.intro-copy .lead { max-width: 760px; margin: 28px 0 0; }
.intro-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; margin-top: 30px; }
.domain-card { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 40px 0 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.domain-card div { padding: 18px 20px 18px 0; }
.domain-card div + div { padding-left: 20px; border-left: 1px solid var(--line); }
.domain-card dt { color: var(--muted); font-size: .78rem; }
.domain-card dd { margin: 5px 0 0; font-size: .96rem; font-weight: 700; word-break: break-word; }
.intro-visual { position: relative; margin: 0; }
.intro-visual img { width: 100%; max-height: 610px; object-fit: cover; border-radius: 34px 34px 8px 34px; background: var(--panel); box-shadow: var(--shadow); }
.intro-visual figcaption { margin-top: 12px; color: var(--muted); font-size: .84rem; }
.intent-strip { border-block: 1px solid var(--line); background: #141416; }
.intent-strip-inner { min-height: 76px; display: flex; align-items: center; gap: 18px 28px; flex-wrap: wrap; }
.intent-strip p { margin: 0; color: var(--muted); }
.intent-strip a { color: #eee7e9; border-bottom: 1px solid transparent; }
.intent-strip a:hover { color: var(--accent); border-color: var(--accent); }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading.compact { max-width: 870px; }
.section-heading h2, .feature-copy h2, .preview-copy h2, .image-note-copy h2, .closing-inner h2 { margin: 0; font-size: clamp(2rem, 3.6vw, 3.5rem); line-height: 1.12; letter-spacing: -.035em; }
.section-heading > p:not(.eyebrow), .feature-copy > p, .preview-copy > p, .image-note-copy > p, .closing-inner p { color: #c4bec1; }
.path-rows { border-top: 1px solid var(--line); }
.path-row { display: grid; grid-template-columns: 110px minmax(0,1fr) 220px; gap: 30px; align-items: start; padding: 28px 0; border-bottom: 1px solid var(--line); }
.step-label { color: var(--copper); font-size: .82rem; font-weight: 800; }
.path-row h3 { margin: 0 0 7px; font-size: 1.28rem; }
.path-row p { margin: 0; color: var(--muted); }
.path-row > a { justify-self: end; color: #f0bd7f; font-weight: 700; text-align: right; }
.feature-split, .app-preview, .image-note, .submission-teaser { display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
.wide-image { margin: 0; }
.wide-image img, .image-note img, .submission-teaser img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: var(--radius); background: var(--panel); }
.feature-copy p, .preview-copy p, .image-note-copy p, .submission-teaser p { font-size: 1.02rem; }
.app-preview { padding: 50px; background: var(--panel); border-radius: 30px; overflow: hidden; }
.phone-visual { margin: 0 -18px -50px 0; align-self: end; }
.phone-visual img { max-height: 560px; margin-left: auto; object-fit: contain; }
.check-list { margin: 24px 0 28px; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 9px 0 9px 27px; color: #d9d4d6; }
.check-list li::before { content: ""; position: absolute; left: 0; top: 19px; width: 10px; height: 10px; border-radius: 50%; background: var(--copper); }
.recognition-list { border-top: 1px solid var(--line); }
.recognition-list article { display: grid; grid-template-columns: 86px minmax(0,1fr); gap: 25px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.recognition-list article > span { color: rgba(241,238,238,.26); font-size: 2rem; font-weight: 900; letter-spacing: -.06em; }
.recognition-list h3 { margin: 0 0 6px; font-size: 1.32rem; }
.recognition-list p { margin: 0; color: var(--muted); }
.image-note { grid-template-columns: .86fr 1.14fr; }
.image-note img { aspect-ratio: 16/10; }
.topic-lines { border-top: 1px solid var(--line); }
.topic-lines a { display: grid; grid-template-columns: 130px minmax(0,1fr) 120px; gap: 24px; align-items: center; padding: 23px 0; border-bottom: 1px solid var(--line); }
.topic-lines span { color: var(--muted); font-size: .83rem; }
.topic-lines strong { font-size: 1.08rem; }
.topic-lines em { justify-self: end; color: var(--accent); font-style: normal; font-size: .86rem; }
.search-band { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: end; padding: 38px 42px; border: 1px solid rgba(208,138,72,.24); background: linear-gradient(120deg, rgba(200,74,90,.09), rgba(208,138,72,.06)); border-radius: var(--radius); }
.search-band h2 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.8rem); line-height: 1.14; }
.search-band p:not(.eyebrow) { margin-bottom: 0; color: var(--muted); }
.submission-teaser { grid-template-columns: .82fr 1.18fr; }
.submission-teaser figure { margin: 0; }
.submission-teaser h2 { margin: 0; font-size: clamp(2rem, 3vw, 3rem); line-height: 1.15; }
.faq-mini { display: grid; gap: 10px; margin-bottom: 24px; }
.faq-mini details { border-bottom: 1px solid var(--line); padding: 0 0 10px; }
.faq-mini summary { cursor: pointer; padding: 14px 0; font-weight: 800; font-size: 1.04rem; }
.faq-mini p { margin: 0 0 12px; color: var(--muted); }
.closing-band { background: #121214; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 58px 0; }
.closing-inner { display: grid; grid-template-columns: .8fr 1.2fr; gap: 52px; align-items: center; }
.closing-inner img { width: 100%; aspect-ratio: 16/9; object-fit: cover; border-radius: 16px; opacity: .9; }

.page-shell { padding-block: 30px 88px; }
.breadcrumbs { margin: 4px 0 40px; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 8px 12px; margin: 0; padding: 0; list-style: none; color: var(--muted); font-size: .84rem; }
.breadcrumbs li + li::before { content: "/"; margin-right: 12px; color: #69656a; }
.breadcrumbs a:hover { color: var(--accent); }
.page-hero, .guide-hero, .about-hero, .safety-hero, .contact-hero { display: grid; grid-template-columns: minmax(0,1fr) 440px; gap: 58px; align-items: center; padding-bottom: 54px; border-bottom: 1px solid var(--line); }
.page-hero h1, .guide-hero h1, .about-hero h1, .safety-hero h1, .contact-hero h1, .editorial-hero h1, .search-page-head h1 { margin: 0; font-size: clamp(2.5rem, 5vw, 4.8rem); line-height: 1.05; letter-spacing: -.05em; }
.page-hero img, .guide-hero img, .about-hero img, .safety-hero img, .contact-hero img { width: 100%; max-height: 440px; object-fit: cover; border-radius: 24px; background: var(--panel); }
.editorial-hero { max-width: 820px; padding: 28px 0 18px; }
.editorial-hero .lead { color: #c9c3c6; }
.article-layout { display: grid; grid-template-columns: minmax(0,1fr) 290px; gap: 72px; align-items: start; }
.prose-block { max-width: var(--reading); }
.prose-block + .prose-block { margin-top: 52px; }
.prose-block h2 { margin: 0 0 14px; font-size: clamp(1.55rem, 2.6vw, 2.25rem); line-height: 1.22; }
.prose-block h3 { margin: 0 0 7px; }
.prose-block p { margin: 0 0 16px; color: #c7c1c4; }
.prose-block a { color: #f0bd7f; border-bottom: 1px solid rgba(229,154,58,.38); }
.visual-prose { max-width: none; display: grid; grid-template-columns: .95fr 1.05fr; gap: 42px; align-items: center; }
.visual-prose img { width: 100%; border-radius: 18px; background: var(--panel); }
.criteria-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.criteria-grid article { padding: 20px; background: var(--panel); border: 1px solid var(--line); border-radius: 15px; }
.criteria-grid article p { margin: 0; font-size: .94rem; }
.aside-card { padding: 24px; background: var(--panel); border: 1px solid var(--line); border-radius: 18px; }
.aside-card h2 { margin: 0 0 10px; font-size: 1.3rem; }
.aside-card ul { margin: 0; padding-left: 18px; color: var(--muted); }
.aside-card li { margin: 9px 0; }
.sticky-card { position: sticky; top: 102px; }
.related-section h2 { margin: 0 0 18px; font-size: 1.65rem; }
.related-links { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; }
.related-links a { display: grid; gap: 7px; min-height: 140px; padding: 20px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.025); }
.related-links a:hover { border-color: rgba(229,154,58,.4); background: rgba(229,154,58,.04); }
.related-links strong { font-size: 1.05rem; }
.related-links span { color: var(--muted); font-size: .9rem; }

.submit-status { padding: 26px 0; border-block: 1px solid var(--line); }
.status-block { display: flex; gap: 18px; align-items: flex-start; }
.status-dot { width: 12px; height: 12px; margin-top: 12px; flex: 0 0 auto; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 7px rgba(229,154,58,.08); }
.status-block h2 { margin: 0 0 8px; font-size: 1.7rem; }
.status-block p, .fine-note { color: #c7c1c4; }
.fine-note { margin: 15px 0 0 30px; font-size: .9rem; }
.numbered-checks { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.numbered-checks li { display: grid; grid-template-columns: 54px 1fr; gap: 20px; padding: 21px 0; border-bottom: 1px solid var(--line); }
.numbered-checks span { color: var(--copper); font-weight: 900; }
.numbered-checks p { margin: 0; color: #c7c1c4; }
.submit-visual { padding: 34px; background: #1b1b1f; border-radius: 22px; }

.guide-jump { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 38px; }
.guide-jump a { padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; color: #d5d0d2; font-size: .88rem; }
.guide-jump a:hover { border-color: rgba(229,154,58,.45); color: #ffd9a6; }
.guide-sections { border-top: 1px solid var(--line); }
.guide-group { display: grid; grid-template-columns: 100px 1fr; gap: 30px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.guide-number { color: rgba(241,238,238,.22); font-size: 2.4rem; font-weight: 900; }
.guide-group h2 { margin: 0 0 14px; font-size: 1.72rem; }
.guide-group ul { margin: 0; padding-left: 19px; color: #c2bcbf; }
.guide-group li { margin: 10px 0; }
.flow-line { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.flow-line article { background: var(--bg); padding: 24px; }
.flow-line span { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: rgba(200,74,90,.14); color: #f099a5; font-weight: 800; }
.flow-line h3 { margin: 22px 0 8px; }
.flow-line p { margin: 0; color: var(--muted); font-size: .92rem; }
.search-help { padding: 34px; border: 1px solid var(--line); border-radius: 22px; }

.faq-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: grid; grid-template-columns: 52px 1fr; align-items: center; padding: 22px 0; cursor: pointer; font-weight: 800; font-size: 1.04rem; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--copper); font-size: .8rem; }
.faq-list details > div { padding: 0 0 24px 52px; color: #c2bcbf; }
.faq-list details > div p { margin: 0; }
.faq-visual { padding-top: 10px; }

.about-hero { padding-bottom: 64px; }
.principles-list { border-top: 1px solid var(--line); }
.principles-list article { display: grid; grid-template-columns: 90px 1fr; gap: 30px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.principles-list span { color: rgba(241,238,238,.22); font-size: 1.8rem; font-weight: 900; }
.principles-list h2 { margin: 0 0 7px; font-size: 1.4rem; }
.principles-list p { margin: 0; color: var(--muted); }
.about-scope { display: grid; grid-template-columns: 1.15fr .85fr; gap: 52px; }
.scope-main h2 { margin: 0 0 28px; font-size: clamp(2rem, 3vw, 3rem); }
.scope-main dl { margin: 0; }
.scope-main dl div { display: grid; grid-template-columns: 220px 1fr; gap: 28px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.scope-main dt { font-weight: 800; }
.scope-main dd { margin: 0; color: var(--muted); }
.scope-aside { align-self: start; padding: 28px; background: var(--panel); border-radius: 18px; }
.scope-aside h2 { margin: 0 0 14px; }
.scope-aside ul { margin: 0; padding-left: 19px; color: #c7c1c4; }
.scope-aside li { margin: 11px 0; }

.safety-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.safety-grid article { min-height: 190px; padding: 25px; border: 1px solid var(--line); background: var(--panel-soft); border-radius: 17px; }
.safety-grid article:last-child { grid-column: 1 / -1; min-height: 0; }
.safety-grid h2 { margin: 0 0 8px; font-size: 1.28rem; }
.safety-grid p { margin: 0; color: var(--muted); }
.danger-signs { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; padding: 42px; border: 1px solid rgba(200,74,90,.24); border-radius: 22px; background: rgba(200,74,90,.055); }
.danger-signs h2 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.8rem); }
.danger-signs ul { margin: 0; padding-left: 20px; color: #d1cbce; }
.danger-signs li { margin: 11px 0; }

.privacy-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.privacy-list article { padding: 25px 0; border-bottom: 1px solid var(--line); }
.privacy-list h2 { margin: 0 0 7px; font-size: 1.35rem; }
.privacy-list p { margin: 0; color: var(--muted); }
.privacy-callout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 46px; align-items: center; padding: 32px; background: var(--panel); border-radius: 22px; }
.privacy-callout img { width: 100%; border-radius: 15px; }
.privacy-callout h2 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.7rem); line-height: 1.16; }
.privacy-callout p:not(.eyebrow) { color: var(--muted); }

.channel-rules { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.channel-rules article { padding: 26px; border: 1px solid var(--line); border-radius: 17px; }
.channel-rules span { color: var(--copper); font-size: .8rem; font-weight: 900; }
.channel-rules h2 { margin: 12px 0 8px; font-size: 1.3rem; }
.channel-rules p { margin: 0; color: var(--muted); }
.channel-rules a { color: #f0bd7f; text-decoration: underline; text-underline-offset: 3px; }
.contact-note { display: grid; grid-template-columns: .7fr 1.3fr; gap: 54px; align-items: start; padding-top: 38px; border-top: 1px solid var(--line); }
.contact-note h2 { margin: 0; font-size: 2rem; }
.contact-note p:not(.eyebrow) { color: var(--muted); }
.contact-links { border-top: 1px solid var(--line); }
.contact-links a { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.contact-links span { color: var(--muted); }

.search-page-head { padding: 28px 0 12px; }
.search-page-head .search-form { max-width: 720px; margin-top: 30px; }
.empty-search { padding: 34px; border: 1px dashed var(--line-strong); border-radius: 18px; }
.empty-search h2 { margin: 0 0 8px; }
.empty-search p { margin: 0; color: var(--muted); }
.empty-search a { color: #f0bd7f; }
.results-meta { margin-bottom: 18px; color: var(--muted); font-size: .9rem; }
.search-results { border-top: 1px solid var(--line); }
.search-results article { padding: 24px 0; border-bottom: 1px solid var(--line); }
.search-results article > span { color: var(--copper); font-size: .76rem; font-weight: 800; }
.search-results h2 { margin: 6px 0 7px; font-size: 1.35rem; }
.search-results h2 a:hover { color: var(--accent); }
.search-results p { margin: 0; color: var(--muted); }
.search-privacy-note { padding: 26px; background: var(--panel); border-radius: 16px; }
.search-privacy-note h2 { margin: 0 0 7px; }
.search-privacy-note p { color: var(--muted); }

.not-found { min-height: 66vh; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; max-width: 860px; padding-block: 70px; }
.not-found h1 { margin: 0; font-size: clamp(3rem, 8vw, 6.5rem); line-height: .96; letter-spacing: -.06em; }
.not-found .lead { max-width: 720px; }
.not-found-links { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 16px; }
.not-found-links a:not(.button) { color: #e3af70; font-weight: 700; }

.site-footer { margin-top: 0; background: var(--ink); border-top: 1px solid var(--line); }
.footer-shell { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 42px; padding: 58px 0; }
.footer-brand { font-size: 1.5rem; font-weight: 900; }
.footer-intro p { max-width: 400px; color: var(--muted); font-size: .9rem; }
.domain-note strong { color: #d9d3d5; }
.footer-group { display: grid; align-content: start; gap: 8px; }
.footer-group h2 { margin: 0 0 6px; font-size: .9rem; color: #f2edef; }
.footer-group a { color: var(--muted); font-size: .88rem; }
.footer-group a:hover { color: var(--accent); }
.footer-bottom { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); color: #827d81; font-size: .8rem; }
.footer-bottom p { margin: 0; }
.back-top { border: 0; background: transparent; color: #b6afb2; cursor: pointer; }
.back-top:hover { color: var(--accent); }

@media (max-width: 1100px) {
    .desktop-nav { display: none; }
    .header-actions { margin-left: auto; }
    .menu-toggle { display: inline-block; }
    .home-intro { grid-template-columns: 1fr .7fr; gap: 36px; }
    .intro-copy h1 { font-size: clamp(2.5rem, 5.6vw, 4.6rem); }
    .page-hero, .guide-hero, .about-hero, .safety-hero, .contact-hero { grid-template-columns: 1fr 360px; gap: 38px; }
    .flow-line { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .article-layout { gap: 42px; }
}

@media (max-width: 900px) {
    .section { margin-top: 70px; }
    .home-intro { min-height: 0; grid-template-columns: 1fr; padding-top: 52px; }
    .intro-visual { max-width: 680px; }
    .intro-visual img { max-height: 520px; }
    .domain-card { grid-template-columns: 1fr; }
    .domain-card div, .domain-card div + div { padding: 14px 0; border-left: 0; border-top: 1px solid var(--line); }
    .domain-card div:first-child { border-top: 0; }
    .feature-split, .app-preview, .image-note, .submission-teaser, .closing-inner, .search-band, .privacy-callout { grid-template-columns: 1fr; }
    .image-note, .submission-teaser { gap: 30px; }
    .app-preview { padding: 34px; }
    .phone-visual { margin: 0 0 -34px; }
    .phone-visual img { margin: 0 auto; max-height: 430px; }
    .search-band { align-items: start; }
    .page-hero, .guide-hero, .about-hero, .safety-hero, .contact-hero { grid-template-columns: 1fr; }
    .page-hero img, .guide-hero img, .about-hero img, .safety-hero img, .contact-hero img { max-width: 680px; }
    .article-layout { grid-template-columns: 1fr; }
    .article-aside { order: -1; }
    .sticky-card { position: static; }
    .visual-prose { grid-template-columns: 1fr; }
    .related-links { grid-template-columns: 1fr; }
    .about-scope, .danger-signs, .contact-note { grid-template-columns: 1fr; }
    .footer-shell { grid-template-columns: 1.4fr 1fr 1fr; }
    .footer-group:last-child { grid-column: 2; }
}

@media (max-width: 700px) {
    .shell, .narrow-shell { width: min(calc(100% - 32px), var(--max)); }
    .header-shell { width: min(calc(100% - 32px), var(--max)); min-height: 68px; gap: 14px; }
    .brand-copy small { display: none; }
    .brand img { width: 38px; height: 38px; }
    .search-open { display: none; }
    .section { margin-top: 58px; }
    .home-intro { padding-block: 42px 34px; }
    .intro-copy h1, .page-hero h1, .guide-hero h1, .about-hero h1, .safety-hero h1, .contact-hero h1, .editorial-hero h1, .search-page-head h1 { font-size: clamp(2.2rem, 10vw, 3.7rem); }
    .intro-actions { align-items: flex-start; flex-direction: column; }
    .intent-strip-inner { padding-block: 16px; align-items: flex-start; flex-direction: column; gap: 8px; }
    .path-row { grid-template-columns: 62px 1fr; gap: 18px; }
    .path-row > a { grid-column: 2; justify-self: start; text-align: left; }
    .topic-lines a { grid-template-columns: 1fr; gap: 4px; padding: 18px 0; }
    .topic-lines em { justify-self: start; }
    .search-band { padding: 28px 22px; }
    .search-form { flex-direction: column; }
    .search-form button { min-height: 48px; }
    .app-preview { padding: 26px 22px; }
    .recognition-list article { grid-template-columns: 58px 1fr; gap: 16px; }
    .page-shell { padding-block: 22px 70px; }
    .breadcrumbs { margin-bottom: 28px; }
    .page-hero, .guide-hero, .about-hero, .safety-hero, .contact-hero { gap: 30px; padding-bottom: 40px; }
    .criteria-grid, .safety-grid, .channel-rules { grid-template-columns: 1fr; }
    .safety-grid article:last-child { grid-column: auto; }
    .guide-group { grid-template-columns: 56px 1fr; gap: 14px; }
    .flow-line { grid-template-columns: 1fr; }
    .search-help, .submit-visual, .privacy-callout { padding: 22px; }
    .faq-list summary { grid-template-columns: 42px 1fr; }
    .faq-list details > div { padding-left: 42px; }
    .scope-main dl div { grid-template-columns: 1fr; gap: 6px; }
    .contact-links a { grid-template-columns: 1fr; gap: 3px; }
    .footer-shell { width: min(calc(100% - 32px), var(--max)); grid-template-columns: 1fr 1fr; gap: 32px 24px; }
    .footer-intro { grid-column: 1 / -1; }
    .footer-group:last-child { grid-column: auto; }
    .footer-bottom { width: min(calc(100% - 32px), var(--max)); align-items: flex-start; flex-direction: column; justify-content: center; padding-block: 16px; }
}

@media (max-width: 420px) {
    .brand-copy strong { font-size: 1.04rem; }
    .header-actions button { padding: 7px 10px; }
    .button { width: 100%; }
    .path-row { grid-template-columns: 1fr; }
    .path-row > a { grid-column: 1; }
    .step-label { margin-bottom: -10px; }
    .recognition-list article { grid-template-columns: 1fr; }
    .recognition-list article > span { font-size: 1.35rem; }
    .numbered-checks li { grid-template-columns: 34px 1fr; gap: 12px; }
    .guide-group { grid-template-columns: 1fr; }
    .guide-number { font-size: 1.6rem; }
    .footer-shell { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}