:root {
    --page: #F3F6FB;
    --surface: #FFFFFF;
    --surface-soft: #E6EEF6;
    --title: #0B1F3A;
    --text: #1C3348;
    --muted: #4A6276;
    --assist: #7A8FA0;
    --navy: #0B3A6E;
    --blue: #1E6FBF;
    --cyan: #1396B3;
    --amber: #D97706;
    --coral: #E25B4C;
    --border: rgba(11,58,110,0.16);
    --shadow: 0 14px 34px rgba(7,20,40,0.08);
    --footer: #071428;
    --footer-text: #D5E4F4;
    --header-total: 136px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--page); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; line-height: 1.72; overflow-x: hidden; }
body.overlay-lock { overflow: hidden; }
a { color: inherit; text-decoration: none; }
a, button { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; }
.shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.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; left: 16px; top: -80px; z-index: 1000; background: #fff; color: var(--navy); padding: 10px 16px; border-radius: 999px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.site-header { position: fixed; inset: 0 0 auto 0; z-index: 100; }
.telegraph-bar { height: 30px; background: var(--navy); color: #fff; }
.telegraph-inner { height: 30px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.telegraph-brand { font-size: 13px; letter-spacing: .08em; font-weight: 800; }
.text-icon-button { min-width: 52px; height: 30px; border: 0; background: transparent; color: #fff; cursor: pointer; font-weight: 700; }
.beacon-bar { height: 62px; background: #fff; border-bottom: 1px solid var(--border); }
.beacon-inner { height: 62px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px; }
.round-menu-button { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border); background: #fff; color: var(--navy); cursor: pointer; display: grid; place-items: center; font-weight: 900; }
.beacon-logo { justify-self: center; min-height: 44px; display: flex; align-items: center; justify-content: center; }
.top-logo { max-height: 34px; width: auto; }
.brand-wordmark { color: var(--navy); font-size: 24px; font-weight: 900; letter-spacing: .08em; white-space: nowrap; }
.app-link { justify-self: end; min-height: 44px; padding: 0 16px; border-radius: 999px; display: inline-flex; align-items: center; background: linear-gradient(135deg,#1E6FBF 0%,#0B3A6E 55%,#071428 100%); color: #fff; font-size: 14px; font-weight: 800; }
.channel-bar { height: 44px; background: #fff; border-bottom: 1px solid var(--border); }
.channel-inner { height: 44px; display: flex; justify-content: center; align-items: stretch; gap: clamp(16px, 4vw, 46px); }
.channel-link { position: relative; min-width: 72px; display: inline-flex; align-items: center; justify-content: center; color: var(--muted); font-size: 14px; font-weight: 700; }
.channel-link::after { content: ""; position: absolute; left: 22%; right: 22%; bottom: -1px; height: 3px; background: transparent; border-radius: 2px 2px 0 0; }
.channel-link:hover, .channel-link.is-current { color: var(--navy); }
.channel-link.is-current::after { background: var(--navy); }
.site-main { padding-top: calc(var(--header-total) + 28px); min-height: 70vh; }
.page-section { padding: 34px 0; }
.page-section.tight { padding: 22px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 18px; }
.section-head h2, .section-head h3 { margin: 0; color: var(--title); line-height: 1.25; }
.section-head h2 { font-size: clamp(23px, 3vw, 30px); }
.section-head p { margin: 0; max-width: 650px; color: var(--muted); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-size: 13px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); }
.page-hero, .signal-cover { background: #fff; border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow); overflow: hidden; }
.page-hero-copy { padding: clamp(26px, 5vw, 58px); }
.page-hero h1, .signal-cover h1 { margin: 10px 0 14px; color: var(--title); font-size: clamp(28px, 4.3vw, 32px); line-height: 1.25; }
.page-hero .lead, .signal-cover .lead { max-width: 820px; margin: 0; font-size: 17px; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.btn { min-height: 44px; padding: 0 18px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn.primary { color: #fff; background: linear-gradient(135deg,#1E6FBF 0%,#0B3A6E 55%,#071428 100%); }
.btn.secondary { color: var(--navy); background: #fff; border: 1px solid var(--border); }
.btn:hover { transform: translateY(-1px); box-shadow: 0 9px 22px rgba(7,20,40,.12); }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(30,111,191,.35); outline-offset: 3px; }
.media-slot { margin: 0; aspect-ratio: var(--media-ratio, 16 / 9); background: var(--surface-soft); overflow: hidden; }
.media-slot img { width: 100%; height: 100%; object-fit: cover; }
.media-placeholder { width: 100%; height: 100%; display: grid; place-items: center; background: linear-gradient(135deg,#E6EEF6,#F8FAFD); border-top: 1px solid var(--border); color: rgba(11,58,110,.24); font-size: clamp(30px, 8vw, 86px); font-weight: 900; letter-spacing: .18em; }
.hero-media { max-height: 340px; }
.hero-media img { object-fit: cover; }
.home-hero { display: grid; grid-template-columns: 1.04fr .96fr; align-items: stretch; }
.home-hero .media-slot { min-height: 280px; max-height: 340px; }
.signal-tags { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.signal-tag { position: relative; min-height: 144px; background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 20px; box-shadow: 0 8px 22px rgba(7,20,40,.04); }
.signal-tag h3 { margin: 0 0 7px; color: var(--title); font-size: 18px; }
.signal-tag p { margin: 0 0 14px; color: var(--muted); font-size: 14px; }
.signal-tag a { color: var(--navy); font-weight: 800; font-size: 14px; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 7px; background: var(--navy); }
.dot.cyan { background: var(--cyan); } .dot.amber { background: var(--amber); } .dot.coral { background: var(--coral); }
.split-feature { display: grid; grid-template-columns: .9fr 1.1fr; gap: 20px; align-items: stretch; }
.split-feature.reverse { grid-template-columns: 1.1fr .9fr; }
.card, .content-panel { background: #fff; border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow); }
.content-panel { padding: clamp(22px, 4vw, 36px); }
.content-panel p { margin: 0 0 14px; }
.content-panel p:last-child { margin-bottom: 0; }
.number-list { display: grid; gap: 10px; }
.number-row { display: grid; grid-template-columns: 58px 1fr auto; align-items: center; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--border); }
.number-row:last-child { border-bottom: 0; }
.number-row .num, .board-card .big-num { color: var(--navy); font-weight: 900; font-size: 24px; line-height: 1; }
.number-row strong { display: block; color: var(--title); }
.number-row span { color: var(--muted); font-size: 14px; }
.number-row a { color: var(--blue); font-weight: 800; font-size: 14px; }
.three-cards, .two-cards, .six-grid, .topic-grid, .channel-grid, .policy-grid { display: grid; gap: 16px; }
.three-cards { grid-template-columns: repeat(3,1fr); }
.two-cards { grid-template-columns: repeat(2,1fr); }
.six-grid, .topic-grid { grid-template-columns: repeat(3,1fr); }
.channel-grid { grid-template-columns: repeat(5,1fr); }
.policy-grid { grid-template-columns: repeat(2,1fr); }
.info-card { padding: 22px; background: #fff; border: 1px solid var(--border); border-radius: 16px; }
.info-card h3 { margin: 0 0 8px; color: var(--title); font-size: 18px; }
.info-card p { margin: 0 0 12px; color: var(--muted); }
.info-card a { color: var(--navy); font-weight: 800; }
.media-card { overflow: hidden; background: #fff; border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow); }
.media-card .copy { padding: 20px; }
.media-card h3 { margin: 0 0 8px; color: var(--title); }
.media-card p { margin: 0; color: var(--muted); }
.file-list { display: grid; gap: 12px; }
.file-item { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 14px; min-height: 80px; padding: 16px 18px; border: 1px solid var(--border); border-radius: 16px; background: #fff; }
.file-icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--surface-soft); color: var(--navy); font-weight: 900; }
.file-item strong { display: block; color: var(--title); }
.file-item p { margin: 3px 0 0; color: var(--muted); font-size: 14px; }
.file-item a { min-height: 44px; display: inline-flex; align-items: center; color: var(--blue); font-weight: 800; }
.board-list { display: grid; grid-template-columns: repeat(5,1fr); gap: 12px; }
.board-card { min-height: 210px; padding: 20px; background: #fff; border: 1px solid var(--border); border-radius: 16px; }
.board-card .big-num { font-size: 40px; }
.board-card h3 { margin: 22px 0 8px; color: var(--title); }
.board-card p { margin: 0; color: var(--muted); font-size: 14px; }
.timeline { position: relative; display: grid; gap: 0; padding-left: 20px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 12px; bottom: 12px; width: 2px; background: var(--border); }
.timeline-item { position: relative; padding: 0 0 28px 30px; }
.timeline-item::before { content: ""; position: absolute; left: -18px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px #fff; }
.timeline-item h3 { margin: 0 0 7px; color: var(--title); }
.timeline-item p { margin: 0 0 8px; color: var(--muted); }
.status { display: inline-flex; min-height: 30px; align-items: center; padding: 0 10px; border-radius: 999px; background: var(--surface-soft); color: var(--navy); font-size: 12px; font-weight: 900; }
.prose { max-width: 860px; margin: 0 auto; }
.prose article, .prose-section { background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: clamp(22px, 4vw, 36px); margin-bottom: 18px; }
.prose h2 { margin: 0 0 14px; color: var(--title); font-size: 23px; }
.prose h3 { margin: 22px 0 9px; color: var(--title); }
.prose p { margin: 0 0 14px; }
.prose p:last-child { margin-bottom: 0; }
.editor-note { padding: 14px 16px; border-left: 4px solid var(--amber); background: #FFF8ED; color: var(--text); border-radius: 0 12px 12px 0; }
.step-list { counter-reset: step; display: grid; gap: 14px; }
.step-item { position: relative; padding: 22px 22px 22px 78px; background: #fff; border: 1px solid var(--border); border-radius: 16px; }
.step-item::before { counter-increment: step; content: counter(step, decimal-leading-zero); position: absolute; left: 22px; top: 22px; color: var(--navy); font-weight: 900; font-size: 24px; }
.step-item h3 { margin: 0 0 8px; color: var(--title); }
.step-item p { margin: 0; color: var(--muted); }
.app-showcase { display: grid; grid-template-columns: .9fr 1.1fr; gap: 20px; align-items: stretch; }
.app-copy { padding: clamp(24px,5vw,46px); background: #fff; border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow); }
.app-mark { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.app-mark img { width: 64px; height: 64px; border-radius: 16px; object-fit: cover; }
.icon-fallback { width: 64px; height: 64px; border-radius: 16px; display: grid; place-items: center; background: var(--navy); color: #fff; font-weight: 900; }
.faq-list { display: grid; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 20px 22px; }
.faq-item h2, .faq-item h3 { margin: 0 0 9px; color: var(--title); font-size: 18px; }
.faq-item p { margin: 0; }
.link-inline { color: var(--blue); font-weight: 800; }
.notice { padding: 18px 20px; border: 1px solid var(--border); border-radius: 16px; background: #fff; color: var(--muted); }
.site-footer { margin-top: 54px; background: var(--footer); color: var(--footer-text); padding: 46px 0 18px; }
.footer-grid { display: grid; grid-template-columns: 1.05fr 1.95fr; gap: 44px; }
.footer-brand-block p { max-width: 420px; margin: 18px 0 0; color: #AFC4D8; }
.footer-logo { display: inline-flex; align-items: center; gap: 12px; color: #fff; }
.footer-logo img { max-height: 34px; width: auto; }
.footer-logo span { display: grid; line-height: 1.1; }
.footer-logo strong { font-size: 20px; }
.footer-logo small { margin-top: 4px; letter-spacing: .16em; color: #9EC1E6; }
.footer-links { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.footer-links div { display: flex; flex-direction: column; gap: 8px; }
.footer-links strong { color: #fff; margin-bottom: 4px; }
.footer-links a { color: #BBD0E4; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 34px; padding-top: 18px; border-top: 1px solid rgba(213,228,244,.14); font-size: 13px; color: #95AEC4; }
.footer-bottom div { display: flex; gap: 16px; }
.page-overlay { position: fixed; inset: 0; z-index: 190; background: rgba(7,20,40,.48); opacity: 0; visibility: hidden; pointer-events: none; transition: .22s ease; }
.page-overlay.is-open { opacity: 1; visibility: visible; pointer-events: auto; }
.frequency-menu { position: fixed; inset: 20px 0 auto; z-index: 220; visibility: hidden; pointer-events: none; transform: translateY(-24px); opacity: 0; transition: .25s ease; }
.frequency-menu.is-open { visibility: visible; pointer-events: auto; transform: translateY(0); opacity: 1; }
.frequency-card { width: min(700px, 94%); max-height: calc(100vh - 40px); overflow: auto; margin: 0 auto; background: #fff; border-radius: 20px; box-shadow: 0 28px 72px rgba(7,20,40,.25); }
.frequency-head { position: sticky; top: 0; z-index: 2; min-height: 68px; padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; background: #fff; border-bottom: 1px solid var(--border); }
.frequency-logo { display: inline-flex; align-items: center; gap: 10px; color: var(--navy); font-weight: 900; }
.menu-logo { max-height: 30px; width: auto; }
.close-button { width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 50%; background: #fff; color: var(--navy); cursor: pointer; font-size: 26px; line-height: 1; }
.frequency-groups { display: grid; grid-template-columns: repeat(2,1fr); gap: 0; }
.frequency-group { padding: 20px; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.frequency-group:nth-child(2n) { border-right: 0; }
.frequency-group h2 { margin: 0 0 12px; color: var(--title); font-size: 16px; }
.frequency-group a { display: block; padding: 10px 0; border-top: 1px dashed var(--border); }
.frequency-group a:first-of-type { border-top: 0; }
.frequency-group strong { display: block; color: var(--title); font-size: 15px; }
.frequency-group span { display: block; margin-top: 3px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.search-panel { position: fixed; top: 102px; left: 0; right: 0; z-index: 220; visibility: hidden; pointer-events: none; opacity: 0; transform: translateY(-10px); transition: .22s ease; }
.search-panel.is-open { visibility: visible; pointer-events: auto; opacity: 1; transform: translateY(0); }
.search-card { width: min(760px, calc(100% - 32px)); margin: 0 auto; background: #fff; border-radius: 18px; box-shadow: 0 26px 72px rgba(7,20,40,.24); padding: 22px; }
.search-head { display: flex; justify-content: space-between; gap: 16px; align-items: start; }
.search-head h2 { margin: 4px 0 0; color: var(--title); font-size: 22px; }
.search-look { min-height: 50px; margin-top: 18px; padding: 0 16px; display: flex; align-items: center; gap: 10px; border-radius: 14px; background: var(--page); color: var(--muted); border: 1px solid var(--border); }
.search-presets { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.search-presets a { min-height: 44px; padding: 0 15px; display: inline-flex; align-items: center; border-radius: 999px; background: #fff; border: 1px solid var(--border); color: var(--navy); font-weight: 800; }
.mobile-bottom-nav { display: none; }
@media (max-width: 980px) {
    .signal-tags { grid-template-columns: repeat(2,1fr); }
    .board-list { grid-template-columns: repeat(3,1fr); }
    .channel-grid { grid-template-columns: repeat(3,1fr); }
    .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    :root { --header-total: 92px; }
    .shell { width: calc(100% - 32px); }
    .channel-bar { display: none; }
    .site-main { padding-top: calc(var(--header-total) + 18px); }
    .home-hero, .split-feature, .split-feature.reverse, .app-showcase { grid-template-columns: 1fr; }
    .home-hero .media-slot { min-height: 190px; }
    .three-cards, .two-cards, .six-grid, .topic-grid, .channel-grid, .policy-grid { grid-template-columns: 1fr; }
    .signal-tags { grid-template-columns: 1fr 1fr; }
    .board-list { grid-template-columns: 1fr 1fr; }
    .number-row { grid-template-columns: 48px 1fr; }
    .number-row a { grid-column: 2; }
    .file-item { grid-template-columns: auto 1fr; }
    .file-item a { grid-column: 2; }
    .frequency-menu { inset: 10px 0 auto; }
    .frequency-card { max-height: calc(100vh - 20px); }
    .frequency-groups { grid-template-columns: 1fr; }
    .frequency-group { border-right: 0; }
    .search-panel { inset: 0; top: 0; background: var(--page); overflow: auto; }
    .search-card { width: 100%; min-height: 100vh; border-radius: 0; box-shadow: none; padding: max(22px, env(safe-area-inset-top)) 18px calc(90px + env(safe-area-inset-bottom)); }
    .footer-links { grid-template-columns: repeat(2,1fr); }
    .footer-bottom { flex-direction: column; align-items: flex-start; padding-bottom: calc(64px + env(safe-area-inset-bottom)); }
    .mobile-bottom-nav { position: fixed; z-index: 150; left: 0; right: 0; bottom: 0; height: calc(50px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom); display: grid; grid-template-columns: repeat(5,1fr); background: rgba(255,255,255,.98); border-top: 1px solid var(--border); box-shadow: 0 -8px 24px rgba(7,20,40,.08); }
    .mobile-bottom-nav a { min-width: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--assist); font-size: 11px; line-height: 1.15; }
    .mobile-bottom-nav a span { font-size: 17px; margin-bottom: 2px; }
    .mobile-bottom-nav a.is-current { color: var(--navy); font-weight: 900; }
    .page-section { padding: 26px 0; }
    .section-head { align-items: flex-start; flex-direction: column; gap: 8px; }
}
@media (max-width: 480px) {
    .beacon-inner { grid-template-columns: 48px 1fr 82px; gap: 8px; }
    .app-link { padding: 0 12px; font-size: 13px; }
    .top-logo { max-width: 116px; max-height: 32px; }
    .brand-wordmark { font-size: 21px; }
    .signal-tags, .board-list { grid-template-columns: 1fr; }
    .signal-tag { min-height: auto; }
    .footer-links { grid-template-columns: 1fr 1fr; }
    .page-hero-copy { padding: 24px 20px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}