:root {
    --page-bg: #F3F6FB;
    --surface: #FFFFFF;
    --surface-soft: #E6EEF6;
    --ink: #0B1F3A;
    --text: #1C3348;
    --muted: #4A6276;
    --quiet: #7A8FA0;
    --brand: #0B3A6E;
    --blue: #1E6FBF;
    --cyan: #1396B3;
    --amber: #D97706;
    --coral: #E25B4C;
    --night: #071428;
    --border: rgba(11,58,110,0.16);
    --shadow: 0 14px 34px rgba(7,20,40,0.08);
    --radius: 18px;
    --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { margin: 0; background: var(--page-bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif; line-height: 1.75; font-size: 16px; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
a, button, input { -webkit-tap-highlight-color: transparent; }
button, input { font: inherit; }
button { cursor: pointer; }
img { display: block; max-width: 100%; height: auto; }
:focus-visible { outline: 3px solid rgba(30,111,191,.35); outline-offset: 3px; }
body.overlay-open { overflow: hidden; }
.site-header { position: fixed; inset: 0 0 auto; z-index: 1000; box-shadow: 0 5px 20px rgba(7,20,40,.06); }
.header-inner, .channel-inner { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; }
.telegraph-bar { height: 30px; background: var(--brand); color: #fff; }
.telegraph-inner { height: 30px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.mini-brand { font-size: 12px; letter-spacing: .08em; font-weight: 700; }
.plain-icon-button { min-width: 44px; min-height: 30px; border: 0; background: transparent; color: #fff; padding: 0 8px; 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; }
.menu-orb { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border); background: #fff; display: grid; place-content: center; gap: 5px; justify-self: start; }
.menu-orb span { width: 17px; height: 2px; background: var(--brand); border-radius: 2px; display: block; }
.beacon-logo { display: flex; align-items: center; justify-content: center; min-height: 44px; }
.brand-logo { max-height: 34px; width: auto; object-fit: contain; }
.brand-word { font-size: 24px; letter-spacing: .18em; font-weight: 900; color: var(--brand); }
.app-link { justify-self: end; min-height: 44px; display: inline-flex; align-items: center; color: var(--brand); font-weight: 800; padding: 0 2px; }
.channel-bar { height: 44px; background: #fff; border-bottom: 1px solid var(--border); }
.channel-inner { height: 44px; display: flex; align-items: stretch; justify-content: center; gap: clamp(18px, 4vw, 48px); }
.channel-inner a { position: relative; display: flex; align-items: center; font-weight: 700; color: var(--muted); white-space: nowrap; }
.channel-inner a:hover, .channel-inner a.is-current { color: var(--brand); }
.channel-inner a.is-current::after { content: ""; position: absolute; left: 8px; right: 8px; bottom: 0; height: 3px; background: var(--brand); border-radius: 3px 3px 0 0; }
.site-main { padding-top: 164px; min-height: 60vh; }
.page-shell { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; }
.hero, .page-hero { background: var(--surface); border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow); overflow: hidden; }
.hero-copy { padding: clamp(28px, 5vw, 58px); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); text-transform: none; letter-spacing: .08em; font-weight: 900; font-size: 13px; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); }
h1, h2, h3 { color: var(--ink); line-height: 1.28; margin-top: 0; }
h1 { font-size: clamp(28px, 4vw, 32px); margin: 12px 0 18px; letter-spacing: -.02em; }
h2 { font-size: clamp(22px, 3vw, 27px); margin-bottom: 14px; }
h3 { font-size: 18px; margin-bottom: 8px; }
p { margin: 0 0 1em; }
.lead { font-size: 17px; color: var(--muted); max-width: 780px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.button-primary, .button-secondary { min-height: 46px; padding: 10px 19px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; font-weight: 850; }
.button-primary { background: linear-gradient(135deg,#1E6FBF 0%,#0B3A6E 55%,#071428 100%); color: #fff; box-shadow: 0 8px 22px rgba(11,58,110,.18); }
.button-secondary { background: #fff; color: var(--brand); border: 1px solid var(--border); }
.button-primary:hover, .button-secondary:hover { transform: translateY(-1px); }
.hero-media, .feature-media { max-height: 340px; width: 100%; object-fit: cover; background: var(--surface-soft); }
.media-slot { min-height: 210px; width: 100%; background: linear-gradient(135deg, rgba(30,111,191,.10), rgba(19,150,179,.08) 52%, rgba(217,119,6,.08)); position: relative; overflow: hidden; }
.media-slot::after { content: ""; position: absolute; inset: 24% 12%; border: 1px dashed rgba(11,58,110,.15); border-radius: 18px; }
.hero-media.media-slot { min-height: 260px; }
.section-block { margin: 28px 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: clamp(22px, 4vw, 38px); box-shadow: var(--shadow); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.section-head p { max-width: 700px; color: var(--muted); margin: 0; }
.text-link { color: var(--brand); font-weight: 800; text-decoration: underline; text-decoration-color: rgba(11,58,110,.25); text-underline-offset: 4px; }
.signal-tags { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.signal-tag { border: 1px solid var(--border); border-radius: 16px; padding: 18px; min-height: 150px; display: flex; flex-direction: column; }
.signal-tag .dot { width: 9px; height: 9px; border-radius: 50%; margin-bottom: 18px; background: var(--brand); }
.signal-tag:nth-child(3n+2) .dot { background: var(--cyan); }
.signal-tag:nth-child(3n) .dot { background: var(--amber); }
.signal-tag p { color: var(--muted); font-size: 14px; }
.signal-tag a { margin-top: auto; color: var(--brand); font-weight: 800; }
.split-feature { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(0,.92fr); gap: 26px; align-items: center; }
.number-list { display: grid; gap: 12px; margin-top: 20px; }
.number-row { display: grid; grid-template-columns: 52px 1fr auto; gap: 14px; align-items: center; border-top: 1px solid var(--border); padding: 14px 0; }
.number-row .num { color: var(--brand); font-size: 24px; font-weight: 950; }
.number-row strong { color: var(--ink); }
.number-row a { color: var(--brand); font-weight: 800; }
.card-grid-3 { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.content-card { border: 1px solid var(--border); border-radius: 17px; overflow: hidden; background: #fff; }
.content-card .card-copy { padding: 20px; }
.content-card .media-slot { min-height: 150px; }
.content-card img { width: 100%; height: 180px; object-fit: cover; }
.content-card p { color: var(--muted); }
.directory-list { display: grid; gap: 12px; }
.directory-item { border: 1px solid var(--border); border-radius: 15px; padding: 18px; display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: start; }
.directory-item .index { width: 36px; height: 36px; border-radius: 12px; display: grid; place-items: center; background: var(--surface-soft); color: var(--brand); font-weight: 900; }
.directory-item p { color: var(--muted); margin: 4px 0 0; }
.directory-item a { color: var(--brand); font-weight: 850; }
.topic-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 14px; }
.topic-card { border: 1px solid var(--border); border-radius: 16px; padding: 19px; background: linear-gradient(180deg,#fff,rgba(230,238,246,.35)); }
.topic-card .tag { color: var(--amber); font-size: 12px; font-weight: 900; letter-spacing: .08em; }
.topic-card p { color: var(--muted); }
.pack-list { display: grid; gap: 10px; }
.pack-item { display: grid; grid-template-columns: 62px 1fr auto; gap: 16px; align-items: center; border: 1px solid var(--border); border-radius: 16px; padding: 16px 18px; }
.pack-icon { width: 50px; height: 42px; border-radius: 10px; background: var(--surface-soft); color: var(--brand); display: grid; place-items: center; font-weight: 950; }
.pack-item p { margin: 4px 0 0; color: var(--muted); }
.pack-item a { color: var(--brand); font-weight: 850; }
.big-number-list { display: grid; gap: 0; }
.big-number-item { display: grid; grid-template-columns: 90px 1fr; gap: 18px; padding: 22px 0; border-top: 1px solid var(--border); }
.big-number-item:first-child { border-top: 0; }
.big-number-item .big-num { font-size: 42px; line-height: 1; color: var(--brand); font-weight: 950; }
.timeline { position: relative; display: grid; gap: 20px; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: var(--surface-soft); }
.timeline-item { position: relative; border: 1px solid var(--border); border-radius: 15px; padding: 18px 20px; }
.timeline-item::before { content: ""; position: absolute; width: 12px; height: 12px; border-radius: 50%; background: var(--blue); left: -28px; top: 23px; box-shadow: 0 0 0 5px var(--page-bg); }
.status { display: inline-flex; border-radius: 999px; padding: 4px 10px; font-size: 12px; font-weight: 900; color: var(--brand); background: var(--surface-soft); }
.status.making { color: #8A4B04; background: #FFF4D7; }
.status.wait { color: #98403A; background: #FCE7E5; }
.app-showcase { display: grid; grid-template-columns: .82fr 1.18fr; gap: 30px; align-items: center; }
.app-art { border-radius: 20px; overflow: hidden; background: var(--surface-soft); min-height: 300px; }
.app-art img { width: 100%; max-height: 460px; object-fit: contain; }
.app-mini { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.app-mini img { width: 62px; height: 62px; border-radius: 15px; object-fit: cover; }
.app-mini .media-slot { width: 62px; min-height: 62px; border-radius: 15px; }
.notice-box { border-left: 4px solid var(--cyan); background: rgba(19,150,179,.07); padding: 16px 18px; border-radius: 0 14px 14px 0; color: var(--text); }
.article-prose { max-width: 860px; }
.article-prose p { margin-bottom: 1.15em; }
.article-prose h2 { margin-top: 1.6em; }
.article-prose h3 { margin-top: 1.35em; }
.page-hero { padding: clamp(26px, 4vw, 42px); margin-bottom: 28px; }
.page-hero .lead { margin-bottom: 0; }
.page-meta-line { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.page-meta-line span { background: var(--surface-soft); color: var(--brand); padding: 6px 11px; border-radius: 999px; font-size: 13px; font-weight: 800; }
.index-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; }
.index-card { padding: 20px; border: 1px solid var(--border); border-radius: 16px; }
.index-card p { color: var(--muted); }
.steps { counter-reset: step; display: grid; gap: 16px; }
.step-card { counter-increment: step; border: 1px solid var(--border); border-radius: 16px; padding: 20px 20px 20px 78px; position: relative; }
.step-card::before { content: counter(step, decimal-leading-zero); position: absolute; left: 20px; top: 18px; font-size: 28px; font-weight: 950; color: var(--brand); }
.faq-list details { border-top: 1px solid var(--border); padding: 17px 0; }
.faq-list details:first-child { border-top: 0; }
.faq-list summary { color: var(--ink); font-weight: 850; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; float: right; color: var(--brand); font-size: 24px; line-height: 1; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { color: var(--muted); margin: 12px 28px 0 0; }
.site-footer { background: var(--night); color: #D5E4F4; margin-top: 44px; padding: 46px 0 34px; }
.footer-inner { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; }
.footer-brand-row { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding-bottom: 28px; border-bottom: 1px solid rgba(213,228,244,.14); }
.footer-brand { display: flex; align-items: center; gap: 14px; color: #fff; }
.footer-brand .brand-logo { max-width: 110px; filter: brightness(0) invert(1); }
.footer-brand .brand-word { color: #fff; }
.footer-brand strong, .footer-brand small { display: block; }
.footer-brand small { color: #9CB6D1; letter-spacing: .12em; }
.footer-brand-row p { max-width: 560px; color: #AFC4D9; margin: 0; }
.footer-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 24px; padding: 28px 0; }
.footer-grid section { display: grid; align-content: start; gap: 8px; }
.footer-grid h2 { font-size: 14px; color: #fff; margin: 0 0 7px; letter-spacing: .08em; }
.footer-grid a { color: #C7D8E9; font-size: 14px; }
.footer-grid a:hover, .footer-bottom a:hover { color: #fff; }
.footer-notice { color: #9CB6D1; border-top: 1px solid rgba(213,228,244,.14); padding-top: 22px; font-size: 14px; }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; color: #8EA8C2; font-size: 13px; }
.screen-overlay { position: fixed; inset: 0; background: rgba(7,20,40,.54); z-index: 1190; visibility: hidden; pointer-events: none; opacity: 0; transition: opacity .2s ease, visibility .2s ease; }
.screen-overlay.is-open { visibility: visible; pointer-events: auto; opacity: 1; }
.band-directory, .search-layer { position: fixed; z-index: 1200; visibility: hidden; pointer-events: none; opacity: 0; transition: opacity .2s ease, visibility .2s ease; }
.band-directory { inset: 16px 0 auto; transform: translateY(-18px); transition: opacity .2s ease, transform .2s ease, visibility .2s ease; }
.band-directory.is-open { visibility: visible; pointer-events: auto; opacity: 1; transform: translateY(0); }
.directory-card { width: min(94%,700px); max-height: calc(100vh - 32px); overflow-y: auto; margin: 0 auto; background: #fff; border-radius: 20px; box-shadow: 0 24px 80px rgba(0,0,0,.24); padding: 22px; }
.directory-head, .search-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.directory-brand { display: flex; align-items: center; gap: 12px; color: var(--brand); font-weight: 900; }
.directory-brand .brand-logo { max-width: 110px; }
.close-button { min-height: 44px; border-radius: 999px; border: 1px solid var(--border); background: #fff; color: var(--brand); padding: 8px 15px; font-weight: 850; }
.directory-groups { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 22px; margin-top: 22px; }
.directory-groups section { display: grid; align-content: start; gap: 8px; }
.directory-groups h2 { font-size: 14px; color: var(--brand); margin: 0 0 4px; }
.directory-groups a { border: 1px solid var(--border); border-radius: 13px; padding: 12px 13px; }
.directory-groups strong, .directory-groups span { display: block; }
.directory-groups strong { color: var(--ink); }
.directory-groups span { color: var(--muted); font-size: 12px; line-height: 1.6; margin-top: 3px; }
.search-layer { top: 98px; left: 0; right: 0; }
.search-layer.is-open { visibility: visible; pointer-events: auto; opacity: 1; }
.search-card { width: min(calc(100% - 32px),760px); margin: 0 auto; background: #fff; border: 1px solid var(--border); border-radius: 20px; box-shadow: 0 22px 70px rgba(7,20,40,.20); padding: 24px; }
.search-head h2 { margin: 5px 0 0; font-size: 23px; }
.search-shell { display: flex; align-items: center; gap: 12px; border: 1px solid var(--border); border-radius: 999px; padding: 6px 8px 6px 16px; margin-top: 20px; color: var(--brand); font-weight: 800; }
.search-shell input { flex: 1; min-width: 0; height: 42px; border: 0; outline: 0; background: transparent; color: var(--text); }
.search-note { font-size: 13px; color: var(--quiet); margin: 10px 3px 14px; }
.search-presets { display: flex; flex-wrap: wrap; gap: 9px; }
.search-presets a { min-height: 44px; border-radius: 999px; background: var(--surface-soft); color: var(--brand); padding: 10px 14px; font-weight: 800; }
.mobile-bottom-nav { display: none; }
@media (max-width: 860px) {
    .signal-tags { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .card-grid-3, .topic-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .split-feature, .app-showcase { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 640px) {
    body { padding-bottom: calc(58px + env(safe-area-inset-bottom)); }
    .channel-bar { display: none; }
    .site-main { padding-top: 112px; }
    .header-inner, .page-shell, .footer-inner { width: calc(100% - 32px); }
    .mini-brand { font-size: 11px; }
    .app-link { font-size: 14px; }
    .brand-logo { max-width: 118px; max-height: 32px; }
    .brand-word { font-size: 21px; }
    .hero-copy { padding: 24px 20px; }
    .hero-media.media-slot { min-height: 200px; }
    .section-block { padding: 21px 18px; margin: 20px 0; }
    .section-head { align-items: start; flex-direction: column; }
    .signal-tags, .card-grid-3, .topic-grid, .index-grid { grid-template-columns: 1fr; }
    .signal-tag { min-height: auto; }
    .number-row { grid-template-columns: 44px 1fr; }
    .number-row a { grid-column: 2; }
    .directory-item { grid-template-columns: 38px 1fr; }
    .directory-item a { grid-column: 2; }
    .pack-item { grid-template-columns: 52px 1fr; }
    .pack-item a { grid-column: 2; }
    .big-number-item { grid-template-columns: 66px 1fr; }
    .big-number-item .big-num { font-size: 34px; }
    .footer-brand-row { align-items: flex-start; flex-direction: column; }
    .footer-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px 12px; }
    .directory-card { width: 94%; padding: 18px; }
    .directory-groups { grid-template-columns: 1fr; }
    .search-layer { inset: 0; background: var(--page-bg); }
    .search-card { width: 100%; min-height: 100vh; border: 0; border-radius: 0; box-shadow: none; padding: calc(20px + env(safe-area-inset-top)) 18px 28px; }
    .mobile-bottom-nav { position: fixed; z-index: 1100; left: 0; right: 0; bottom: 0; min-height: 50px; padding-bottom: env(safe-area-inset-bottom); background: rgba(255,255,255,.96); border-top: 1px solid var(--border); display: grid; grid-template-columns: repeat(5,1fr); backdrop-filter: blur(10px); }
    .mobile-bottom-nav a { min-height: 50px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; color: var(--muted); font-size: 11px; }
    .mobile-bottom-nav a span { font-size: 17px; line-height: 1; }
    .mobile-bottom-nav a.is-current { color: var(--brand); font-weight: 900; }
    .screen-overlay { z-index: 1190; }
}
@media (max-width: 390px) {
    .beacon-inner { grid-template-columns: 52px 1fr 68px; }
    .app-link { white-space: nowrap; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}