:root {
    --brand: #C85C3A;
    --amber: #E6B85C;
    --ink: #2B2523;
    --paper: #FAF7F2;
    --soft: #F1EAE2;
    --text: #332E2B;
    --muted: #766C66;
    --accent: #D94A32;
    --line: #DED2C7;
    --white: #FFFEFC;
    --shadow: 0 18px 45px rgba(43, 37, 35, .08);
    --radius: 24px;
    --radius-sm: 14px;
    --shell: min(1180px, calc(100% - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--paper);
    color: var(--text);
    font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 1.78;
    text-rendering: optimizeLegibility;
}
body.modal-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-color: rgba(200, 92, 58, .42); text-underline-offset: .2em; }
a:hover { color: var(--brand); text-decoration-color: var(--brand); }
button, input { font: inherit; }
button { cursor: pointer; }
code {
    padding: .12em .4em;
    border-radius: 6px;
    background: var(--soft);
    color: var(--ink);
    font-size: .92em;
}

.skip-link {
    position: fixed;
    z-index: 999;
    top: 12px;
    left: 12px;
    transform: translateY(-150%);
    padding: 10px 14px;
    border-radius: 8px;
    background: var(--ink);
    color: var(--white);
}
.skip-link:focus { transform: translateY(0); }
.content-shell { width: var(--shell); margin-inline: auto; }
.site-main { overflow: hidden; }
.site-main > section { margin-top: 88px; }
.site-main > section:first-of-type { margin-top: 0; }
.section-kicker,
.eyebrow {
    margin: 0 0 9px;
    color: var(--brand);
    font-size: .79rem;
    font-weight: 800;
    letter-spacing: .11em;
    text-transform: uppercase;
}
.section-heading { display: grid; gap: 6px; margin-bottom: 28px; }
.section-heading h2,
.narrow-heading h2,
.page-lead h1,
.article-header h1,
.error-panel h1 {
    margin: 0;
    color: var(--ink);
    font-family: Georgia, "Songti SC", "SimSun", serif;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -.015em;
}
.section-heading h2,
.narrow-heading h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); }
.section-heading p,
.narrow-heading p { max-width: 790px; margin: 0; color: var(--muted); }
.narrow-heading { max-width: 820px; }
.lead { font-size: clamp(1.05rem, 1.7vw, 1.25rem); color: #514943; }
.primary-link,
.text-button,
.search-open,
.inline-search button,
.search-form button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 17px;
    border: 1px solid var(--brand);
    border-radius: 999px;
    background: var(--brand);
    color: var(--white);
    font-weight: 750;
    text-decoration: none;
}
.text-button {
    background: transparent;
    color: var(--brand);
}
.primary-link:hover,
.text-button:hover,
.search-open:hover,
.inline-search button:hover,
.search-form button:hover { background: var(--ink); border-color: var(--ink); color: var(--white); }
.small-link { min-height: 40px; padding: 8px 14px; }
.inline-arrow,
.section-link,
.note-read {
    display: inline-block;
    margin-top: 12px;
    color: var(--brand);
    font-weight: 800;
}
.inline-arrow::after,
.section-link::after { content: " →"; }
.inline-links { display: flex; flex-wrap: wrap; gap: 10px 16px; }
.inline-links a { color: var(--brand); font-weight: 760; }

.site-header {
    position: sticky;
    z-index: 100;
    top: 0;
    border-bottom: 1px solid rgba(222, 210, 199, .9);
    background: rgba(250, 247, 242, .94);
    backdrop-filter: blur(14px);
}
.header-inner {
    width: var(--shell);
    min-height: 74px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 28px;
}
.brand-lockup { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-lockup img { width: 42px; height: 42px; object-fit: contain; border-radius: 12px; }
.brand-lockup span { display: grid; line-height: 1.1; }
.brand-lockup strong { color: var(--ink); font-size: 1.15rem; }
.brand-lockup small { margin-top: 4px; color: var(--muted); font-size: .72rem; }
.primary-nav { display: flex; justify-content: center; align-items: center; gap: 4px; }
.primary-nav a {
    padding: 8px 12px;
    border-radius: 999px;
    color: #514943;
    font-weight: 650;
    text-decoration: none;
}
.primary-nav a:hover,
.primary-nav a[aria-current="page"] { background: var(--soft); color: var(--brand); }
.search-open { min-height: 38px; padding: 7px 13px; font-size: .9rem; }
.nav-toggle { display: none; }

.search-modal[hidden] { display: none !important; }
.search-modal { position: fixed; z-index: 300; inset: 0; display: grid; place-items: start center; padding: 10vh 20px 20px; }
.search-backdrop { position: absolute; inset: 0; background: rgba(43, 37, 35, .62); }
.search-dialog {
    position: relative;
    width: min(680px, 100%);
    padding: clamp(24px, 5vw, 44px);
    border: 1px solid #E1D3C6;
    border-radius: 28px;
    background: var(--paper);
    box-shadow: 0 35px 90px rgba(0, 0, 0, .24);
}
.search-dialog h2 { margin: 0 0 18px; font: 700 clamp(1.5rem, 4vw, 2.2rem)/1.25 Georgia, "Songti SC", serif; }
.search-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: var(--white);
    color: var(--ink);
    font-size: 1.7rem;
    line-height: 1;
}
.search-form label,
.inline-search label { display: block; margin-bottom: 8px; color: var(--ink); font-weight: 760; }
.search-row,
.inline-search > div { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.search-form input,
.inline-search input {
    width: 100%;
    min-width: 0;
    min-height: 48px;
    padding: 10px 14px;
    border: 1px solid #CEBFB3;
    border-radius: 12px;
    background: var(--white);
    color: var(--text);
    outline: none;
}
.search-form input:focus,
.inline-search input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(200, 92, 58, .12); }
.form-note { margin: 12px 0 0; color: var(--muted); font-size: .9rem; }

.home-intro {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.18fr) minmax(320px, .82fr);
    gap: clamp(34px, 6vw, 82px);
    align-items: center;
    padding-block: clamp(54px, 8vw, 112px) 52px;
}
.home-intro::before {
    content: "";
    position: absolute;
    z-index: -1;
    width: 420px;
    height: 420px;
    right: -210px;
    top: -130px;
    border-radius: 50%;
    background: rgba(230, 184, 92, .17);
}
.intro-copy h1 {
    max-width: 820px;
    margin: 0;
    color: var(--ink);
    font: 700 clamp(2.4rem, 5vw, 5.25rem)/1.05 Georgia, "Songti SC", "SimSun", serif;
    letter-spacing: -.04em;
}
.intro-copy .lead { max-width: 750px; margin: 24px 0 0; }
.intro-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.intro-visual { margin: 0; }
.intro-visual img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 44px 12px 44px 12px; box-shadow: var(--shadow); }
.intro-visual figcaption { padding: 12px 6px 0; color: var(--muted); font-size: .86rem; }

.identity-strip {
    display: grid;
    grid-template-columns: .9fr 1.25fr 1fr;
    gap: 26px;
    align-items: start;
    padding: 28px;
    border-top: 3px solid var(--brand);
    border-bottom: 1px solid var(--line);
}
.identity-strip h2 { margin: 0; color: var(--ink); font-size: 1.45rem; line-height: 1.35; }
.identity-strip > p { margin: 0; color: var(--muted); }
.identity-list { display: grid; gap: 10px; margin: 0; }
.identity-list div { display: grid; grid-template-columns: 84px 1fr; gap: 12px; }
.identity-list dt { color: var(--muted); }
.identity-list dd { margin: 0; color: var(--ink); font-weight: 750; word-break: break-word; }

.route-map { padding-block: 12px; }
.route-lines { border-top: 1px solid var(--line); }
.route-lines article {
    display: grid;
    grid-template-columns: 70px 1fr 1.35fr auto;
    gap: 22px;
    align-items: center;
    padding: 24px 0;
    border-bottom: 1px solid var(--line);
}
.route-lines article.route-primary { padding-block: 31px; }
.route-number { color: var(--brand); font-family: Georgia, serif; font-size: 1.28rem; }
.route-lines h3 { margin: 0; color: var(--ink); font-size: 1.18rem; }
.route-lines p { margin: 0; color: var(--muted); }
.route-lines a { color: var(--brand); font-weight: 760; text-align: right; }

.split-band {
    display: grid;
    grid-template-columns: minmax(300px, .88fr) minmax(0, 1.12fr);
    gap: clamp(34px, 6vw, 74px);
    align-items: center;
    padding: clamp(30px, 5vw, 58px);
    border-radius: 36px;
    background: var(--soft);
}
.split-media img { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; border-radius: 28px 8px 28px 8px; }
.split-copy h2,
.mobile-copy h2,
.two-column-reading h2,
.app-safety h2,
.privacy-boundary h2,
.index-principle h2 {
    margin: 0;
    color: var(--ink);
    font: 700 clamp(1.75rem, 3.4vw, 3rem)/1.18 Georgia, "Songti SC", serif;
}
.split-copy > p:not(.section-kicker), .mobile-copy > p { color: var(--muted); }
.check-list { display: grid; gap: 11px; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 26px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--brand); font-weight: 900; }

.editorial-columns { display: grid; grid-template-columns: minmax(280px, .78fr) minmax(0, 1.22fr); gap: 34px; }
.editorial-image { margin: 0; }
.editorial-image img { width: 100%; height: 100%; min-height: 430px; object-fit: cover; border-radius: 8px 36px 8px 36px; }
.editorial-list { border-top: 1px solid var(--line); }
.editorial-list article { padding: 22px 0; border-bottom: 1px solid var(--line); }
.editorial-list span,
.note-meta span,
.search-result-list article > span,
.related-list a > span { color: var(--brand); font-size: .78rem; font-weight: 800; letter-spacing: .06em; }
.editorial-list h3 { margin: 3px 0 6px; font-size: 1.25rem; }
.editorial-list h3 a { text-decoration: none; }
.editorial-list p { margin: 0; color: var(--muted); }

.status-guide {
    display: grid;
    grid-template-columns: minmax(250px, .75fr) minmax(0, 1.25fr);
    gap: 50px;
    padding: 42px;
    border-radius: 30px;
    background: var(--ink);
    color: #F4ECE6;
}
.status-guide .section-kicker { color: var(--amber); }
.status-intro h2 { margin: 0; color: #FFF9F3; font: 700 clamp(1.7rem, 3vw, 2.7rem)/1.18 Georgia, "Songti SC", serif; }
.status-intro p:last-child { color: #CFC3BC; }
.status-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.status-grid article { padding: 18px; border: 1px solid rgba(255,255,255,.14); border-radius: 15px; background: rgba(255,255,255,.035); }
.status-grid strong { color: var(--amber); }
.status-grid p { margin: 6px 0 0; color: #D9CDC5; }

.mobile-preview {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
    gap: clamp(30px, 6vw, 76px);
    align-items: center;
}
.mobile-media { margin: 0; }
.mobile-media img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 90px 20px 90px 20px; }
.compact-links { display: grid; gap: 10px; margin: 22px 0; }
.compact-links a { display: grid; padding: 14px 0; border-top: 1px solid var(--line); text-decoration: none; }
.compact-links a:last-child { border-bottom: 1px solid var(--line); }
.compact-links strong { color: var(--ink); }
.compact-links span { color: var(--muted); font-size: .93rem; }

.report-index { border-top: 2px solid var(--ink); }
.report-index article { display: grid; grid-template-columns: 64px 1fr; gap: 22px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.report-index > article > span { color: var(--brand); font: 700 1.15rem Georgia, serif; }
.report-index h3 { margin: 0 0 6px; color: var(--ink); font-size: 1.3rem; }
.report-index h3 a { text-decoration: none; }
.report-index p { margin: 0; color: var(--muted); }

.search-explainer {
    display: grid;
    grid-template-columns: minmax(260px, .8fr) minmax(0, 1.2fr);
    gap: 48px;
    align-items: center;
    padding-block: 34px;
    border-block: 1px solid var(--line);
}
.search-explainer figure { margin: 0; }
.search-explainer img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-radius: 28px; }
.search-explainer h2 { margin: 0; color: var(--ink); font: 700 clamp(1.7rem, 3vw, 2.65rem)/1.18 Georgia, "Songti SC", serif; }
.search-explainer p { color: var(--muted); }
.inline-search { margin-top: 22px; }

.guide-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.guide-row a { display: grid; gap: 7px; padding: 24px; background: var(--paper); text-decoration: none; }
.guide-row strong { color: var(--ink); font-size: 1.05rem; }
.guide-row span { color: var(--muted); font-size: .93rem; }

.trust-band,
.correction-band,
.contact-status,
.warning-band,
.community-boundary {
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: 48px;
    padding: 32px 0;
    border-top: 3px solid var(--brand);
    border-bottom: 1px solid var(--line);
}
.trust-band h2,
.correction-band h2,
.contact-status h2,
.warning-band h2,
.community-boundary h2 { margin: 0; color: var(--ink); font: 700 clamp(1.6rem, 2.8vw, 2.4rem)/1.22 Georgia, "Songti SC", serif; }
.trust-copy > p,
.correction-band > div:last-child > p,
.contact-status > div:last-child > p,
.warning-band > div:last-child > p,
.community-boundary > div:last-child > p { margin-top: 0; color: var(--muted); }

.closing-index { padding-bottom: 90px; }
.closing-index > header { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 24px; }
.closing-index h2 { margin: 0; color: var(--ink); font: 700 clamp(1.8rem, 3vw, 2.8rem)/1.2 Georgia, "Songti SC", serif; }
.closing-links { display: grid; grid-template-columns: repeat(5, 1fr); border-block: 1px solid var(--line); }
.closing-links a { display: grid; align-content: start; gap: 6px; min-height: 132px; padding: 20px 18px; border-right: 1px solid var(--line); text-decoration: none; }
.closing-links a:last-child { border-right: 0; }
.closing-links span { color: var(--ink); font-weight: 800; }
.closing-links small { color: var(--muted); line-height: 1.55; }

.inner-main { padding-bottom: 90px; }
.inner-main > .content-shell:first-child { margin-top: 22px; }
.breadcrumbs { margin: 0 0 18px; color: var(--muted); font-size: .85rem; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 7px; padding: 0; margin: 0; list-style: none; }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: 7px; color: #B4A69B; }
.page-lead {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
    gap: clamp(32px, 6vw, 72px);
    align-items: center;
    padding-block: 36px 48px;
}
.page-lead h1 { font-size: clamp(2.25rem, 5vw, 4.7rem); }
.page-lead .lead { margin-bottom: 0; }
.page-lead > img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 36px 10px 36px 10px; }
.text-lead { grid-template-columns: 1fr; max-width: 940px; margin-inline: auto; text-align: left; }
.text-lead > div { max-width: 850px; }

.topic-directory { padding-top: 10px; }
.directory-list { border-top: 2px solid var(--ink); }
.directory-list article { display: grid; grid-template-columns: 74px 1fr; gap: 22px; padding: 21px 0; border-bottom: 1px solid var(--line); }
.directory-no { color: var(--brand); font-family: Georgia, serif; font-size: 1.18rem; }
.directory-list h3 { margin: 0 0 5px; font-size: 1.23rem; }
.directory-list h3 a { text-decoration: none; }
.directory-list p { max-width: 780px; margin: 0; color: var(--muted); }

.two-column-reading,
.app-safety,
.privacy-boundary,
.index-principle {
    display: grid;
    grid-template-columns: minmax(280px, .85fr) minmax(0, 1.15fr);
    gap: 50px;
    align-items: center;
}
.two-column-reading figure,
.app-safety figure,
.privacy-boundary figure,
.index-principle figure { margin: 0; }
.two-column-reading img,
.app-safety img,
.privacy-boundary img,
.index-principle img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 24px; }
.two-column-reading p,
.app-safety p,
.privacy-boundary p,
.index-principle p { color: var(--muted); }
.next-paths { padding-top: 30px; border-top: 1px solid var(--line); }
.next-paths h2 { margin: 0 0 22px; color: var(--ink); font: 700 clamp(1.6rem, 2.8vw, 2.4rem)/1.2 Georgia, "Songti SC", serif; }
.next-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.next-links a { display: grid; gap: 7px; padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.26); text-decoration: none; }
.next-links strong { color: var(--ink); }
.next-links span { color: var(--muted); font-size: .9rem; }

.device-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.device-grid article { padding: 20px; border-top: 3px solid var(--amber); background: var(--soft); }
.device-grid strong { color: var(--ink); font-size: 1.05rem; }
.device-grid p { margin-bottom: 0; color: var(--muted); }
.app-mobile { padding: 38px; border-radius: 30px; background: #F3E4D8; }

.evidence-ladder ol { counter-reset: evidence; padding: 0; margin: 0; list-style: none; border-top: 2px solid var(--ink); }
.evidence-ladder li { display: grid; grid-template-columns: 34px .9fr 1.4fr; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.evidence-ladder li::before { counter-increment: evidence; content: counter(evidence, decimal-leading-zero); color: var(--brand); font: 700 1.1rem Georgia, serif; }
.evidence-ladder strong { color: var(--ink); }
.evidence-ladder p { margin: 0; color: var(--muted); }
.report-index-section > header { max-width: 760px; margin-bottom: 28px; }
.report-index-section h2 { margin: 0; color: var(--ink); font: 700 clamp(1.7rem, 3vw, 2.6rem)/1.2 Georgia, "Songti SC", serif; }
.report-index-section header > p:last-child { color: var(--muted); }

.filter-strip { display: grid; grid-template-columns: 180px 1fr; gap: 30px; align-items: start; padding: 22px 0; border-block: 1px solid var(--line); }
.filter-strip h2 { margin: 5px 0 0; color: var(--ink); font-size: 1rem; }
.filter-strip nav { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-strip a { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); text-decoration: none; }
.filter-strip a:hover,
.filter-strip a[aria-current="page"] { border-color: var(--brand); background: var(--brand); color: var(--white); }
.notes-feed-head { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 24px; }
.notes-feed-head h2 { margin: 0; color: var(--ink); font: 700 clamp(1.7rem, 3vw, 2.6rem)/1.2 Georgia, "Songti SC", serif; }
.notes-feed-head > p { max-width: 430px; margin: 0; color: var(--muted); text-align: right; }
.notes-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 36px; border-top: 2px solid var(--ink); }
.notes-list article { padding: 22px 0; border-bottom: 1px solid var(--line); }
.notes-list h3 { margin: 5px 0 8px; font-size: 1.22rem; }
.notes-list h3 a { text-decoration: none; }
.notes-list p { margin: 0; color: var(--muted); }

.article-main { padding-bottom: 92px; }
.article-shell { max-width: 1040px; }
.article-body { max-width: 780px; margin: 42px auto 0; }
.article-header { padding-bottom: 30px; border-bottom: 1px solid var(--line); }
.article-header h1 { font-size: clamp(2.2rem, 4.8vw, 4rem); }
.article-summary { margin: 20px 0 0; color: #5A504B; font-size: 1.2rem; }
.article-copy { font-size: 1.06rem; }
.article-copy p { margin: 1.35em 0; }
.article-copy h2 { margin: 2.1em 0 .5em; color: var(--ink); font: 700 clamp(1.5rem, 3vw, 2.15rem)/1.3 Georgia, "Songti SC", serif; }
.article-context { margin-top: 34px; padding: 22px 24px; border-left: 4px solid var(--brand); background: var(--soft); }
.article-context strong { color: var(--ink); }
.article-context p { color: var(--muted); }
.article-context a { color: var(--brand); font-weight: 800; }
.related-reading { margin-top: 70px; padding-top: 30px; border-top: 1px solid var(--line); }
.related-reading h2 { margin: 0 0 22px; color: var(--ink); font: 700 clamp(1.6rem, 3vw, 2.4rem)/1.2 Georgia, "Songti SC", serif; }
.related-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.related-list a { display: grid; gap: 5px; padding: 18px; border: 1px solid var(--line); border-radius: 12px; text-decoration: none; }
.related-list strong { color: var(--ink); }
.related-list small { color: var(--muted); line-height: 1.55; }

.guide-step { display: grid; grid-template-columns: 80px 1fr; gap: 30px; padding: 28px 0; border-top: 1px solid var(--line); }
.guide-step > span { color: var(--brand); font: 700 1.4rem Georgia, serif; }
.guide-step h2 { margin: 0; color: var(--ink); font: 700 clamp(1.55rem, 3vw, 2.4rem)/1.2 Georgia, "Songti SC", serif; }
.guide-step p { max-width: 820px; color: var(--muted); }
.guide-step a { color: var(--brand); font-weight: 800; }

.faq-list { max-width: 940px; }
.faq-list h2 { margin: 0 0 22px; color: var(--ink); font: 700 clamp(1.7rem, 3vw, 2.6rem)/1.2 Georgia, "Songti SC", serif; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { display: grid; grid-template-columns: 52px 1fr; align-items: center; gap: 12px; padding: 18px 0; color: var(--ink); font-weight: 800; cursor: pointer; }
.faq-list summary span { color: var(--brand); font-family: Georgia, serif; }
.faq-list details > div { padding: 0 0 18px 64px; }
.faq-list details p { max-width: 720px; margin: 0; color: var(--muted); }
.faq-next { padding-top: 32px; border-top: 3px solid var(--brand); }
.faq-next > div { margin-bottom: 22px; }
.faq-next h2 { margin: 0; color: var(--ink); font: 700 clamp(1.6rem, 3vw, 2.4rem)/1.2 Georgia, "Songti SC", serif; }
.faq-next .closing-links { grid-template-columns: repeat(3, 1fr); }

.about-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 50px; }
.about-grid h2,
.editorial-principles h2 { margin: 0; color: var(--ink); font: 700 clamp(1.7rem, 3vw, 2.6rem)/1.2 Georgia, "Songti SC", serif; }
.about-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.about-points article { padding: 20px; border: 1px solid var(--line); }
.about-points strong { color: var(--ink); }
.about-points p { margin-bottom: 0; color: var(--muted); }
.editorial-principles { padding: 36px; border-radius: 26px; background: var(--soft); }
.editorial-principles header { max-width: 700px; margin-bottom: 26px; }
.principle-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 32px; }
.principle-list p { margin: 0; color: var(--muted); }
.principle-list strong { color: var(--ink); }

.safety-checks { display: grid; grid-template-columns: .7fr 1.3fr; gap: 50px; }
.safety-checks h2 { margin: 0; color: var(--ink); font: 700 clamp(1.7rem, 3vw, 2.6rem)/1.2 Georgia, "Songti SC", serif; }
.safety-checks ol { margin: 0; padding: 0; list-style: none; border-top: 2px solid var(--ink); }
.safety-checks li { display: grid; grid-template-columns: 54px 1fr; gap: 15px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.safety-checks li > span { color: var(--brand); font-family: Georgia, serif; }
.safety-checks strong { color: var(--ink); }
.safety-checks p { margin: 4px 0 0; color: var(--muted); }

.privacy-sections { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.privacy-sections article { padding: 28px; background: var(--paper); }
.privacy-sections h2 { margin: 0; color: var(--ink); font: 700 clamp(1.45rem, 2.5vw, 2rem)/1.25 Georgia, "Songti SC", serif; }
.privacy-sections article > p:last-child { color: var(--muted); }

.feedback-guide { display: grid; grid-template-columns: .7fr 1.3fr; gap: 50px; }
.feedback-guide h2 { margin: 0; color: var(--ink); font: 700 clamp(1.7rem, 3vw, 2.6rem)/1.2 Georgia, "Songti SC", serif; }
.feedback-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.feedback-grid article { padding: 20px; border: 1px solid var(--line); border-radius: 12px; }
.feedback-grid strong { color: var(--ink); }
.feedback-grid p { margin-bottom: 0; color: var(--muted); }

.search-page-head { max-width: 940px; padding-block: 42px 10px; }
.search-page-head h1 { margin: 0; color: var(--ink); font: 700 clamp(2.2rem, 4.8vw, 4.2rem)/1.15 Georgia, "Songti SC", serif; }
.search-page-head > p { color: var(--muted); }
.search-page-form { max-width: 720px; }
.search-results { min-height: 340px; }
.search-results h2,
.search-results-head h2 { margin: 0; color: var(--ink); font: 700 clamp(1.6rem, 3vw, 2.4rem)/1.2 Georgia, "Songti SC", serif; }
.search-results-head { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 20px; }
.search-results-head p { margin: 0; color: var(--muted); }
.search-result-list { border-top: 2px solid var(--ink); }
.search-result-list article { padding: 20px 0; border-bottom: 1px solid var(--line); }
.search-result-list h3 { margin: 3px 0 5px; }
.search-result-list h3 a { text-decoration: none; }
.search-result-list p { margin: 0; color: var(--muted); }
.suggested-searches { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.suggested-searches a { padding: 9px 13px; border: 1px solid var(--line); border-radius: 999px; color: var(--brand); text-decoration: none; }

.compact-main { min-height: 64vh; display: grid; align-items: center; }
.error-panel { max-width: 860px; padding-block: 90px; }
.error-panel h1 { font-size: clamp(2.3rem, 5vw, 4.5rem); }
.error-panel > p:not(.eyebrow) { max-width: 720px; color: var(--muted); font-size: 1.12rem; }

.site-footer { margin-top: 0; padding: 58px 0 24px; background: var(--ink); color: #E7DCD4; }
.footer-grid { width: var(--shell); margin: 0 auto; display: grid; grid-template-columns: 1.35fr .8fr .8fr; gap: 50px; }
.footer-grid h2 { margin: 0 0 13px; color: #FFF9F4; font-size: 1rem; }
.footer-grid p { margin: 0; max-width: 540px; color: #C9BBB2; }
.footer-grid ul { margin: 0; padding: 0; list-style: none; }
.footer-grid li + li { margin-top: 7px; }
.footer-grid a { color: #E9DDD6; text-decoration-color: rgba(233,221,214,.3); }
.footer-grid a:hover { color: var(--amber); }
.footer-bottom { width: var(--shell); margin: 42px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.footer-bottom p { margin: 0; color: #AFA098; font-size: .85rem; }
.back-top { padding: 7px 10px; border: 1px solid rgba(255,255,255,.24); border-radius: 999px; background: transparent; color: #EEE4DE; }

@media (max-width: 1100px) {
    :root { --shell: min(100% - 36px, 1040px); }
    .header-inner { grid-template-columns: auto auto 1fr auto; gap: 12px; }
    .nav-toggle {
        display: inline-flex;
        justify-self: end;
        padding: 7px 11px;
        border: 1px solid var(--line);
        border-radius: 999px;
        background: transparent;
        color: var(--ink);
    }
    .primary-nav {
        position: absolute;
        top: calc(100% + 1px);
        right: 18px;
        left: 18px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border: 1px solid var(--line);
        border-radius: 0 0 18px 18px;
        background: var(--paper);
        box-shadow: var(--shadow);
    }
    .primary-nav.is-open { display: flex; }
    .primary-nav a { padding: 10px 12px; }
    .search-open { justify-self: end; }
    .route-lines article { grid-template-columns: 54px 1fr 1.2fr; }
    .route-lines article a { grid-column: 2 / -1; text-align: left; }
    .closing-links { grid-template-columns: repeat(3, 1fr); }
    .closing-links a:nth-child(3) { border-right: 0; }
    .closing-links a:nth-child(n+4) { border-top: 1px solid var(--line); }
    .device-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
    .site-main > section { margin-top: 68px; }
    .home-intro,
    .page-lead,
    .mobile-preview,
    .split-band,
    .search-explainer,
    .two-column-reading,
    .app-safety,
    .privacy-boundary,
    .index-principle { grid-template-columns: 1fr; }
    .home-intro { padding-top: 52px; }
    .intro-visual { max-width: 620px; }
    .intro-visual img { aspect-ratio: 16 / 10; }
    .identity-strip { grid-template-columns: 1fr 1fr; }
    .identity-strip > p { grid-column: 1 / -1; }
    .editorial-columns { grid-template-columns: 1fr; }
    .editorial-image img { min-height: 0; aspect-ratio: 16 / 9; }
    .status-guide { grid-template-columns: 1fr; gap: 28px; }
    .guide-row { grid-template-columns: 1fr; }
    .guide-row a { min-height: auto; }
    .trust-band,
    .correction-band,
    .contact-status,
    .warning-band,
    .community-boundary,
    .about-grid,
    .safety-checks,
    .feedback-guide { grid-template-columns: 1fr; gap: 24px; }
    .page-lead > img { max-width: 700px; }
    .mobile-media { max-width: 560px; }
    .mobile-media img { aspect-ratio: 16 / 10; border-radius: 40px 10px 40px 10px; }
    .privacy-sections { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; gap: 28px; }
}

@media (max-width: 720px) {
    :root { --shell: min(100% - 28px, 680px); }
    body { font-size: 15px; }
    .header-inner { min-height: 66px; grid-template-columns: auto 1fr auto; }
    .brand-lockup small { display: none; }
    .brand-lockup img { width: 38px; height: 38px; }
    .nav-toggle { grid-column: 2; }
    .search-open { grid-column: 3; font-size: .8rem; }
    .intro-copy h1 { font-size: clamp(2.25rem, 12vw, 4rem); }
    .identity-strip { padding-inline: 0; grid-template-columns: 1fr; }
    .identity-strip > p { grid-column: auto; }
    .route-lines article { grid-template-columns: 44px 1fr; gap: 12px 14px; }
    .route-lines article p,
    .route-lines article a { grid-column: 2; }
    .split-band,
    .app-mobile { padding: 24px; border-radius: 22px; }
    .status-guide { padding: 26px; border-radius: 22px; }
    .status-grid { grid-template-columns: 1fr; }
    .closing-links,
    .faq-next .closing-links { grid-template-columns: 1fr; }
    .closing-links a { border-right: 0; border-top: 1px solid var(--line); min-height: auto; }
    .closing-links a:first-child { border-top: 0; }
    .next-links,
    .notes-list,
    .related-list,
    .about-points,
    .principle-list,
    .feedback-grid { grid-template-columns: 1fr; }
    .device-grid { grid-template-columns: 1fr; }
    .evidence-ladder li { grid-template-columns: 32px 1fr; }
    .evidence-ladder li p { grid-column: 2; }
    .filter-strip { grid-template-columns: 1fr; gap: 14px; }
    .notes-feed-head,
    .search-results-head { display: grid; gap: 10px; }
    .notes-feed-head > p { text-align: left; }
    .guide-step { grid-template-columns: 46px 1fr; gap: 14px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid > section:first-child { grid-column: 1 / -1; }
    .footer-bottom { align-items: flex-start; }
}

@media (max-width: 600px) {
    :root { --shell: calc(100% - 24px); }
    .site-main > section { margin-top: 54px; }
    .header-inner { gap: 8px; }
    .brand-lockup strong { font-size: 1.03rem; }
    .search-open { padding: 6px 9px; }
    .home-intro { padding-top: 40px; }
    .intro-visual img { border-radius: 24px 8px 24px 8px; }
    .intro-actions { display: grid; grid-template-columns: 1fr; }
    .primary-link,
    .text-button { width: 100%; }
    .search-row,
    .inline-search > div { grid-template-columns: 1fr; }
    .search-form button,
    .inline-search button { width: 100%; }
    .page-lead { padding-top: 22px; }
    .page-lead h1 { font-size: clamp(2rem, 11vw, 3.2rem); }
    .directory-list article,
    .report-index article { grid-template-columns: 42px 1fr; gap: 12px; }
    .article-body { margin-top: 26px; }
    .article-summary { font-size: 1.08rem; }
    .faq-list summary { grid-template-columns: 40px 1fr; }
    .faq-list details > div { padding-left: 52px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-grid > section:first-child { grid-column: auto; }
    .footer-bottom { display: grid; }
}

@media (max-width: 420px) {
    .brand-lockup img { width: 34px; height: 34px; }
    .brand-lockup span { display: none; }
    .header-inner { grid-template-columns: auto 1fr auto; }
    .search-open { font-size: 0; width: 38px; height: 38px; padding: 0; }
    .search-open::before { content: "查"; font-size: .8rem; }
    .status-guide,
    .editorial-principles,
    .app-mobile { padding: 20px; }
}