:root {
    --bg: #F5FAFE;
    --bg-deep: #E7F2FA;
    --surface: #FFFFFF;
    --surface-2: #D7EAF6;
    --title: #16324A;
    --text: #2A4156;
    --muted: #4E6A80;
    --aux: #6E8899;
    --blue: #4AA3E0;
    --blue-bright: #6BB8EC;
    --blue-deep: #1B4A6E;
    --mist: #EAF5FC;
    --border: rgba(74, 163, 224, 0.16);
    --border-strong: rgba(74, 163, 224, 0.42);
    --shadow: 0 12px 28px rgba(27, 74, 110, 0.08);
    --radius: 12px;
    --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
    margin: 0;
    min-width: 0;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.7;
    padding-top: 122px;
}
body.is-locked { overflow: hidden; }
a { color: var(--blue-deep); text-decoration: none; }
a:hover { color: var(--blue); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(74, 163, 224, .35); outline-offset: 2px; }
button, input { font: inherit; }
button { cursor: pointer; }
img { max-width: 100%; display: block; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 200; background: #fff; padding: 10px 14px; border-radius: 8px; }
.skip-link:focus { top: 8px; }
.site-header { position: fixed; z-index: 80; inset: 0 0 auto 0; }
.topline { height: 22px; background: var(--blue-deep); color: #fff; font-size: 12px; }
.topline-inner, .brandbar-inner, .section-tabs-inner, .site-main, .footer-inner {
    width: min(var(--max), calc(100% - 32px)); margin: 0 auto;
}
.topline-inner { height: 22px; display: flex; align-items: center; justify-content: space-between; }
.text-button { border: 0; background: transparent; color: #fff; min-height: 22px; padding: 0 4px; }
.brandbar { height: 60px; background: #fff; border-bottom: 1px solid var(--border); }
.brandbar-inner { height: 60px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px; }
.brand-link { justify-self: start; display: inline-flex; align-items: center; min-height: 44px; }
.brand-logo, .drawer-logo, .footer-logo { height: 28px; width: auto; object-fit: contain; }
.brand-text, .drawer-brand-text, .footer-brand-text { font-weight: 800; font-size: 22px; color: var(--blue-deep); }
.drawer-button { justify-self: center; min-width: 84px; height: 44px; border-radius: 22px; border: 1px solid var(--border-strong); background: var(--mist); color: var(--blue-deep); font-size: 14px; }
.app-link { justify-self: end; min-height: 44px; display: inline-flex; align-items: center; padding: 0 16px; border-radius: 22px; background: linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%); color: #fff; font-size: 14px; }
.app-link:hover { color: #fff; filter: brightness(.98); }
.section-tabs { height: 40px; background: var(--mist); border-bottom: 1px solid var(--border); }
.section-tabs-inner { height: 40px; display: flex; justify-content: center; align-items: center; gap: 8px; }
.section-tabs a { display: inline-flex; align-items: center; min-height: 32px; padding: 0 18px; border-radius: 9px; font-size: 13px; color: var(--title); }
.section-tabs a.is-current { background: var(--blue); color: #fff; }
.site-main { padding: 34px 0 64px; }
h1, h2, h3 { color: var(--title); margin-top: 0; }
h1 { font-size: 24px; line-height: 1.3; margin-bottom: 14px; }
h2 { font-size: 20px; line-height: 1.4; margin-bottom: 12px; }
h3 { font-size: 16px; line-height: 1.45; margin-bottom: 8px; }
p { margin: 0 0 14px; }
.eyebrow { display: inline-block; color: var(--blue); font-size: 12px; letter-spacing: .08em; font-weight: 700; margin-bottom: 8px; }
.lead { font-size: 16px; color: var(--muted); max-width: 820px; }
.page-hero { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 26px; box-shadow: var(--shadow); margin-bottom: 24px; }
.page-hero.compact { padding: 22px 24px; }
.button-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.button { min-height: 42px; padding: 0 18px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; font-size: 14px; white-space: nowrap; }
.button-primary { background: linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%); color: #fff; }
.button-primary:hover { color: #fff; filter: brightness(.98); }
.button-secondary { background: #fff; border: 1px solid var(--border-strong); color: var(--blue-deep); }
.section-block { margin: 28px 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 14px; margin-bottom: 14px; }
.section-heading p { margin: 0; color: var(--muted); }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); min-width: 0; }
.card p:last-child { margin-bottom: 0; }
.card-link { display: inline-flex; min-height: 44px; align-items: center; margin-top: 8px; font-weight: 700; }
.media-slot { width: 100%; height: 180px; border-radius: 12px; background: var(--mist); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; overflow: hidden; margin-bottom: 14px; }
.media-slot img { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.media-slot.banner { height: 260px; }
.media-slot.medium { height: 200px; }
.media-slot.app-visual { height: min(360px, 70vw); }
.media-placeholder { width: 44%; height: 38%; border-radius: 18px; background: linear-gradient(145deg, var(--surface-2), var(--mist)); border: 1px solid var(--border); }
.cover-caption { text-align: center; margin-top: 18px; }
.cover-caption .brand-kicker { color: var(--blue-deep); font-weight: 800; letter-spacing: .08em; }
.cover-caption p { max-width: 760px; margin-left: auto; margin-right: auto; }
.issue-layout, .app-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: 20px; align-items: start; }
.app-brand-row { display: flex; align-items: center; gap: 12px; margin: 8px 0 14px; }
.app-icon { width: 48px; height: 48px; object-fit: contain; object-position: center; border-radius: 10px; }
.app-brand-eyebrow { margin: 0; }

.number-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.number-list li { display: grid; grid-template-columns: 42px 1fr; gap: 12px; padding: 14px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; }
.number-list .num { color: var(--blue); font-weight: 800; font-size: 18px; }
.shelf-list { display: grid; gap: 12px; }
.shelf-item { background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--blue); border-radius: 10px; padding: 16px 18px; }
.timeline { position: relative; display: grid; gap: 14px; margin-left: 8px; }
.timeline:before { content: ""; position: absolute; left: 12px; top: 8px; bottom: 8px; width: 2px; background: var(--surface-2); }
.timeline-item { position: relative; padding-left: 40px; }
.timeline-dot { position: absolute; left: 4px; top: 12px; width: 18px; height: 18px; border-radius: 50%; background: var(--blue); border: 4px solid var(--mist); }
.timeline-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; }
.status { display: inline-flex; align-items: center; min-height: 28px; padding: 0 10px; border-radius: 14px; background: var(--mist); color: var(--blue-deep); font-size: 12px; font-weight: 700; }
.article-stack { display: grid; gap: 16px; }
.article-section { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.article-section ul, .article-section ol { padding-left: 1.3em; }
.index-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.index-link { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 16px; min-height: 100%; }
.index-link strong { display: block; color: var(--title); margin-bottom: 4px; }
.note-list { display: grid; gap: 12px; }
.note-item { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.note-item .note-no { color: var(--blue); font-size: 22px; font-weight: 800; }
.faq-list { display: grid; gap: 14px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; }
.faq-item h2 { font-size: 16px; margin-bottom: 8px; }
.callout { background: var(--mist); border: 1px solid var(--border-strong); border-radius: 12px; padding: 18px; color: var(--title); }
.contact-paths { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.contact-paths .card { box-shadow: none; }
.site-footer { background: var(--blue-deep); color: var(--bg-deep); border-top: 1px solid rgba(231,242,250,.28); padding: 34px 0 calc(28px + env(safe-area-inset-bottom)); font-size: 13px; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.footer-brand > div { display: flex; flex-direction: column; }
.footer-brand strong { color: #fff; font-size: 16px; }
.footer-brand span { color: var(--bg-deep); }
.footer-brand-text { color: #fff; }
.footer-links-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; padding: 20px 0; border-top: 1px solid rgba(231,242,250,.2); border-bottom: 1px solid rgba(231,242,250,.2); }
.footer-links-grid h2 { font-size: 13px; color: #fff; margin-bottom: 8px; }
.footer-links-grid a { color: var(--bg-deep); display: block; min-height: 30px; }
.footer-links-grid a:hover { color: #fff; }
.footer-note { max-width: 820px; margin-top: 18px; color: var(--bg-deep); }
.copyright { margin-bottom: 0; color: rgba(231,242,250,.8); }
.site-overlay { position: fixed; z-index: 95; inset: 0; background: rgba(22,50,74,.38); opacity: 0; pointer-events: none; transition: opacity .2s ease; }
.site-overlay.is-active { opacity: 1; pointer-events: auto; }
.drawer-panel { position: fixed; z-index: 110; top: 0; right: 0; bottom: 0; width: min(400px, 86vw); background: #fff; box-shadow: -16px 0 34px rgba(27,74,110,.16); transform: translateX(102%); visibility: hidden; pointer-events: none; transition: transform .24s ease, visibility .24s ease; }
.drawer-panel.is-open { transform: translateX(0); visibility: visible; pointer-events: auto; }
.drawer-head { height: 68px; display: flex; align-items: center; justify-content: space-between; padding: 0 18px; border-bottom: 1px solid var(--border); }
.drawer-brand { display: flex; align-items: center; gap: 10px; color: var(--title); }
.icon-button { min-height: 44px; padding: 0 14px; border-radius: 10px; background: var(--mist); color: var(--blue-deep); border: 1px solid var(--border); }
.drawer-scroll { height: calc(100% - 68px); overflow-y: auto; padding: 16px 18px 28px; }
.drawer-group { margin-bottom: 22px; }
.drawer-group h2 { font-size: 13px; color: var(--aux); margin-bottom: 8px; }
.drawer-group a { display: block; padding: 12px 0; border-bottom: 1px solid var(--border); }
.drawer-group a strong { display: block; font-size: 15px; color: var(--title); margin-bottom: 2px; }
.drawer-group a span { display: block; font-size: 13px; color: var(--muted); }
.search-layer { position: fixed; z-index: 105; top: 82px; left: 0; right: 0; visibility: hidden; pointer-events: none; opacity: 0; transform: translateY(-8px); transition: opacity .18s ease, transform .18s ease, visibility .18s ease; }
.search-layer.is-open { visibility: visible; pointer-events: auto; opacity: 1; transform: translateY(0); }
.search-card { width: min(760px, calc(100% - 32px)); margin: 12px auto 0; background: #fff; border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow); padding: 20px; }
.search-head { display: flex; justify-content: space-between; gap: 16px; align-items: start; }
.search-head h2 { margin-bottom: 8px; }
.search-card label { display: block; color: var(--muted); margin-bottom: 6px; }
.search-input { width: 100%; min-height: 46px; border-radius: 10px; border: 1px solid var(--border-strong); padding: 0 14px; color: var(--title); background: #fff; }
.search-presets { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.search-presets a { display: inline-flex; min-height: 42px; align-items: center; padding: 0 14px; background: var(--mist); border: 1px solid var(--border); border-radius: 9px; }
.search-tip { color: var(--aux); font-size: 13px; margin-top: 14px; margin-bottom: 0; }
.mobile-bottom-nav { display: none; }
.table-wrap { overflow-x: auto; }
.simple-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 12px; overflow: hidden; }
.simple-table th, .simple-table td { border-bottom: 1px solid var(--border); padding: 12px 14px; text-align: left; vertical-align: top; }
.simple-table th { color: var(--title); background: var(--mist); }
@media (max-width: 820px) {
    body { padding-top: 82px; padding-bottom: calc(58px + env(safe-area-inset-bottom)); }
    .topline-inner, .brandbar-inner, .site-main, .footer-inner { width: calc(100% - 32px); }
    .section-tabs { display: none; }
    .brandbar-inner { grid-template-columns: 1fr auto 1fr; gap: 8px; }
    .brand-logo { max-width: 90px; }
    .drawer-button { min-width: 72px; }
    .app-link { padding: 0 12px; }
    .site-main { padding-top: 24px; padding-bottom: 44px; }
    .card-grid, .card-grid.two, .card-grid.four, .issue-layout, .app-layout, .index-grid, .contact-paths { grid-template-columns: 1fr; }
    .media-slot.banner { height: 260px; }
    .page-hero { padding: 20px; }
    .section-heading { align-items: start; flex-direction: column; }
    .footer-links-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .mobile-bottom-nav { position: fixed; z-index: 70; left: 0; right: 0; bottom: 0; display: grid; grid-template-columns: repeat(5, 1fr); min-height: calc(48px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom); background: #fff; border-top: 1px solid var(--border); }
    .mobile-bottom-nav a { min-width: 0; min-height: 48px; display: flex; align-items: center; justify-content: center; font-size: 12px; color: var(--blue-deep); }
    .mobile-bottom-nav a.is-current { background: var(--blue); color: #fff; }
    .search-layer { top: 0; bottom: 0; background: var(--blue-deep); padding: 18px 0; overflow-y: auto; }
    .search-card { margin: 0 auto; background: transparent; box-shadow: none; border: 0; color: #fff; }
    .search-card h2, .search-card label, .search-card .eyebrow, .search-tip { color: #fff; }
    .search-input { background: #fff; }
    .search-presets a { background: #fff; color: var(--blue-deep); }
    .search-head .icon-button { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.28); color: #fff; }
}
@media (max-width: 420px) {
    .app-link { font-size: 13px; padding: 0 10px; }
    .drawer-button { min-width: 66px; }
    .footer-links-grid { gap: 12px; }
}