:root {
    --bg: #0B1220;
    --deep: #070B14;
    --panel: #141C2E;
    --panel-2: #1C2740;
    --title: #E8F0FF;
    --text: #C9D6EC;
    --muted: #8FA3C4;
    --soft: #6B7F9E;
    --brand: #7BA3E8;
    --bright: #A8C4F0;
    --space: #1A3A6E;
    --line: rgba(123,163,232,0.18);
    --line-strong: rgba(123,163,232,0.46);
    --shadow: 0 12px 28px rgba(0,0,0,0.35);
    --shell: 1120px;
}
* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
html.is-locked, body.is-locked { overflow: hidden; }
body { margin: 0; min-width: 320px; overflow-x: hidden; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; font-size: 15px; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--title); }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--bright); outline-offset: 3px; }
img { max-width: 100%; display: block; }
.shell { width: min(calc(100% - 32px), var(--shell)); margin: 0 auto; }
.starline { position: fixed; inset: 0 0 auto 0; z-index: 80; height: 22px; background: var(--deep); border-bottom: 1px solid var(--line); color: var(--title); font-size: 12px; }
.starline-inner { height: 22px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.plain-button { border: 0; background: transparent; color: var(--title); cursor: pointer; min-height: 22px; padding: 0 4px; }
.rail { position: fixed; left: 0; right: 0; top: 22px; z-index: 79; height: 60px; background: rgba(11,18,32,0.97); border-bottom: 1px solid var(--line); }
.rail-inner { height: 60px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 18px; }
.brand-link { justify-self: start; min-height: 44px; display: inline-flex; align-items: center; }
.brand-logo, .footer-logo { height: 28px; width: auto; max-width: 170px; object-fit: contain; object-position: center; }
.brand-fallback { color: var(--title); font-weight: 700; font-size: 16px; letter-spacing: .04em; }
.drawer-trigger { justify-self: center; min-width: 78px; min-height: 44px; padding: 0 18px; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--panel); color: var(--title); cursor: pointer; font-size: 14px; }
.app-link { justify-self: end; min-height: 44px; display: inline-flex; align-items: center; padding: 0 16px; border-radius: 10px; background: linear-gradient(135deg,#A8C4F0 0%,#7BA3E8 55%,#1A3A6E 100%); color: var(--deep); font-size: 14px; font-weight: 700; }
.app-link:hover { color: var(--deep); filter: brightness(1.05); }
.seatbar { position: fixed; left: 0; right: 0; top: 82px; z-index: 78; height: 40px; background: var(--space); border-bottom: 1px solid var(--line-strong); }
.seatbar-inner { height: 40px; display: flex; align-items: center; justify-content: center; gap: 8px; }
.seat-link { height: 32px; min-width: 86px; display: inline-flex; align-items: center; justify-content: center; border-radius: 8px; color: var(--title); font-size: 13px; }
.seat-link.is-active { background: var(--brand); color: var(--deep); font-weight: 700; }
.site-main { padding-top: 154px; min-height: 70vh; }
.page-hero { padding: 36px 0 26px; }
.eyebrow { margin: 0 0 8px; color: var(--bright); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; color: var(--title); }
h1 { font-size: 24px; line-height: 1.3; margin-bottom: 12px; }
h2 { font-size: 20px; line-height: 1.4; }
h3 { font-size: 16px; line-height: 1.45; }
p { margin: 0 0 1em; }
.lead { max-width: 820px; color: var(--text); font-size: 16px; }
.section { padding: 22px 0 34px; }
.section + .section { border-top: 1px solid var(--line); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.section-heading p { margin: 0; color: var(--muted); }
.mt-18 { margin-top: 18px; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.card-grid.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
.card { min-width: 0; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px; box-shadow: var(--shadow); }
.card p:last-child { margin-bottom: 0; }
.card .kicker { display: block; color: var(--bright); font-size: 12px; margin-bottom: 8px; }
.media-slot { width: 100%; background: var(--deep); border: 1px solid var(--line); border-radius: 12px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.media-slot img { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.media-slot.banner { height: 260px; }
.media-slot.feature { height: 200px; }
.media-slot.compact { height: 180px; }
.media-slot.app-shot { height: 360px; max-width: 440px; margin: 0 auto; }
.cover-copy { padding: 20px 0 0; max-width: 900px; }
.cover-copy h1 { margin-bottom: 4px; }
.cover-copy .brand-en { color: var(--muted); font-size: 13px; letter-spacing: .14em; }
.cover-copy .slogan { font-size: 20px; color: var(--title); margin: 12px 0 8px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.button { min-height: 42px; display: inline-flex; align-items: center; justify-content: center; padding: 0 18px; border-radius: 10px; border: 1px solid transparent; font-size: 14px; font-weight: 700; white-space: nowrap; }
.button.primary { background: linear-gradient(135deg,#A8C4F0 0%,#7BA3E8 55%,#1A3A6E 100%); color: var(--deep); }
.button.secondary { background: var(--deep); border-color: var(--line-strong); color: var(--title); }
.number-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; margin-bottom: 18px; }
.number-chip { background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.number-chip strong { display: block; color: var(--bright); font-size: 22px; line-height: 1; margin-bottom: 6px; }
.shelf { display: grid; gap: 12px; }
.shelf-row { display: grid; grid-template-columns: 78px 1fr auto; gap: 14px; align-items: center; min-height: 74px; padding: 14px 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; }
.shelf-row .index { color: var(--bright); font-size: 18px; font-weight: 700; }
.shelf-row p { margin: 4px 0 0; color: var(--muted); }
.shelf-row .tag { color: var(--title); font-size: 12px; border: 1px solid var(--line-strong); border-radius: 999px; padding: 4px 9px; white-space: nowrap; }
.observatory-list { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 12px; }
.observatory-item { background: var(--deep); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.observatory-item strong { display: block; color: var(--bright); font-size: 24px; margin-bottom: 6px; }
.timeline { position: relative; display: grid; gap: 14px; padding-left: 22px; }
.timeline:before { content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 1px; background: var(--line-strong); }
.timeline-item { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.timeline-item:before { content: ""; position: absolute; width: 11px; height: 11px; border-radius: 50%; background: var(--brand); left: -22px; top: 22px; box-shadow: 0 0 0 4px var(--bg); }
.status { display: inline-flex; align-items: center; min-height: 28px; padding: 0 9px; border-radius: 999px; background: var(--panel-2); color: var(--bright); font-size: 12px; border: 1px solid var(--line); }
.note-list { display: grid; gap: 14px; }
.note { background: var(--panel); border-left: 3px solid var(--brand); border-radius: 0 10px 10px 0; padding: 18px 20px; }
.note h3 { margin-bottom: 7px; }
.prose { max-width: 920px; }
.prose h2 { margin-top: 26px; margin-bottom: 10px; }
.prose h3 { margin-top: 20px; margin-bottom: 8px; }
.prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: .5em; }
.split { display: grid; grid-template-columns: 1.2fr .8fr; gap: 22px; align-items: start; }
.index-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.index-link { display: block; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.index-link strong { color: var(--title); display: block; margin-bottom: 6px; }
.index-link span { color: var(--muted); }
.faq-list { display: grid; gap: 12px; }
.faq-item { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px; }
.faq-item h2, .faq-item h3 { margin-bottom: 8px; }
.faq-item p { margin-bottom: 0; }
.callout { background: linear-gradient(180deg, rgba(123,163,232,.12), rgba(123,163,232,.04)); border: 1px solid var(--line-strong); border-radius: 12px; padding: 20px; }
.app-intro { display: grid; grid-template-columns: 1fr 420px; gap: 28px; align-items: center; }
.app-mark { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.app-mark img { width: 48px; height: 48px; object-fit: contain; object-position: center; border-radius: 12px; }
.site-footer { margin-top: 44px; padding: 34px 0 calc(28px + env(safe-area-inset-bottom)); background: var(--deep); border-top: 1px solid var(--line); color: var(--text); font-size: 13px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4,1fr); gap: 22px; }
.footer-brand { display: flex; flex-direction: column; gap: 6px; color: var(--title); }
.footer-brand-line { min-height: 28px; display: flex; align-items: center; }
.footer-title { font-size: 13px; margin-bottom: 8px; color: var(--bright); }
.footer-grid > div:not(.footer-brand) { display: flex; flex-direction: column; gap: 6px; }
.footer-grid a { color: var(--text); }
.footer-note { border-top: 1px solid var(--line); margin-top: 24px; padding-top: 18px; color: var(--muted); }
.footer-note p { margin-bottom: 7px; }
.site-overlay { position: fixed; inset: 0; z-index: 110; background: rgba(3,7,13,.66); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .22s ease, visibility .22s ease; }
.site-overlay.is-visible { opacity: 1; visibility: visible; pointer-events: auto; }
.star-drawer { position: fixed; top: 0; right: 0; bottom: 0; z-index: 120; width: min(400px, 86vw); background: var(--deep); border-left: 1px solid var(--line-strong); transform: translateX(105%); visibility: hidden; pointer-events: none; transition: transform .24s ease, visibility .24s ease; box-shadow: var(--shadow); }
.star-drawer.is-open { transform: translateX(0); visibility: visible; pointer-events: auto; }
.drawer-head { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 0 18px; border-bottom: 1px solid var(--line); }
.drawer-brand { min-width: 0; display: flex; align-items: center; gap: 10px; color: var(--title); font-weight: 700; }
.drawer-close, .search-close { min-height: 44px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: 9px; background: var(--panel); color: var(--title); cursor: pointer; }
.drawer-scroll { height: calc(100% - 72px); overflow-y: auto; padding: 16px 18px 26px; }
.drawer-group + .drawer-group { margin-top: 20px; }
.drawer-group h2 { font-size: 13px; color: var(--muted); margin-bottom: 7px; }
.drawer-group a { display: block; padding: 11px 0; border-bottom: 1px solid var(--line); }
.drawer-group strong { display: block; color: var(--title); font-size: 14px; }
.drawer-group span { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; line-height: 1.55; }
.search-layer { position: fixed; left: 0; right: 0; top: 82px; z-index: 121; display: flex; justify-content: center; padding: 14px 16px; opacity: 0; visibility: hidden; pointer-events: none; transform: translateY(-8px); transition: opacity .2s ease, transform .2s ease, visibility .2s ease; }
.search-layer.is-open { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0); }
.search-card { width: min(720px, 100%); background: var(--bg); border: 1px solid var(--line-strong); border-radius: 12px; box-shadow: var(--shadow); padding: 20px; }
.search-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--title); }
.search-card p { color: var(--muted); margin: 12px 0; }
.search-links { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.search-links a { min-height: 44px; display: flex; align-items: center; justify-content: center; background: var(--panel); border: 1px solid var(--line); border-radius: 9px; color: var(--title); }
.mobile-bottom { display: none; }
@media (max-width: 860px) {
    .site-main { padding-top: 110px; padding-bottom: calc(56px + env(safe-area-inset-bottom)); }
    .seatbar { display: none; }
    .card-grid, .card-grid.two { grid-template-columns: 1fr; }
    .number-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .observatory-list { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .split, .app-intro { grid-template-columns: 1fr; }
    .app-intro { gap: 18px; }
    .index-list { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2,1fr); }
    .footer-brand { grid-column: 1 / -1; }
    .mobile-bottom { position: fixed; left: 0; right: 0; bottom: 0; z-index: 90; height: calc(48px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom); display: grid; grid-template-columns: repeat(5,1fr); background: rgba(7,11,20,.98); border-top: 1px solid var(--line); }
    .mobile-bottom a { min-width: 0; min-height: 48px; display: flex; align-items: center; justify-content: center; color: var(--text); font-size: 12px; }
    .mobile-bottom a.is-active { background: var(--brand); color: var(--deep); font-weight: 700; }
    .star-drawer { z-index: 130; }
    .site-overlay { z-index: 125; }
    .search-layer { inset: 0; z-index: 131; top: 0; padding: 0; background: var(--deep); align-items: start; }
    .search-card { width: 100%; min-height: 100%; border: 0; border-radius: 0; padding: calc(24px + env(safe-area-inset-top)) 16px 24px; }
    .search-links { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 620px) {
    .shell { width: min(calc(100% - 32px), var(--shell)); }
    .rail-inner { grid-template-columns: minmax(0,1fr) auto minmax(0,1fr); gap: 8px; }
    .brand-logo { max-width: 120px; }
    .brand-fallback { font-size: 15px; white-space: nowrap; }
    .drawer-trigger { min-width: 68px; padding: 0 12px; }
    .app-link { padding: 0 10px; font-size: 13px; }
    .page-hero { padding-top: 24px; }
    .media-slot.banner { height: 260px; }
    .media-slot.app-shot { height: 320px; }
    .shelf-row { grid-template-columns: 50px 1fr; }
    .shelf-row .tag { grid-column: 2; justify-self: start; }
    .observatory-list { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 18px; }
}

/* MOBILE_COMPACT_FIX_20260923_BEGIN */
@media (max-width: 420px) {
  html, body { min-width: 0 !important; width: 100%; max-width: 100%; overflow-x: hidden; }
  body { font-size: 14px; line-height: 1.64; }
  .shell { width: calc(100% - 40px) !important; max-width: none; }
  .starline { font-size: 11px; }
  .starline-inner { gap: 8px; }
  .rail-inner { grid-template-columns: minmax(0,1fr) 58px 72px !important; gap: 6px !important; }
  .brand-link { min-width: 0; overflow: hidden; }
  .brand-logo { max-width: 96px !important; height: 24px; }
  .brand-fallback { font-size: 13px !important; }
  .drawer-trigger { min-width: 58px !important; min-height: 40px; padding: 0 7px !important; font-size: 12px; }
  .app-link { min-width: 72px; min-height: 40px; padding: 0 7px !important; font-size: 12px !important; justify-content: center; }
  .site-main { padding-top: 102px !important; }
  .page-hero { padding-top: 18px !important; padding-bottom: 20px; }
  h1 { font-size: 22px; }
  h2 { font-size: 18px; }
  h3 { font-size: 15px; }
  .lead { font-size: 14px; }
  .section { padding-top: 18px; padding-bottom: 28px; }
  .media-slot.banner { height: 198px !important; }
  .media-slot.feature, .media-slot.compact { height: 168px; }
  .cover-copy { padding-top: 15px; }
  .cover-copy .slogan { font-size: 18px; margin-top: 9px; }
  .actions { gap: 8px; margin-top: 14px; }
  .button { min-height: 40px; padding: 0 14px; font-size: 13px; }
  .card, .faq-item, .callout { padding: 16px; }
  .footer-grid { gap: 14px 12px !important; }
}
/* MOBILE_COMPACT_FIX_20260923_END */