:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #EAF7FF;
    --surface-alt: #F2FAFF;
    --primary: #1CA8F6;
    --primary-bright: #38C7FF;
    --primary-dark: #0877C9;
    --cyan: #7FE4FF;
    --ink: #223044;
    --ink-strong: #1D2A3A;
    --muted: #5F7082;
    --footer: #082A46;
    --line: rgba(28, 168, 246, .14);
    --shadow: 0 16px 40px rgba(8, 119, 201, .08);
    --shadow-strong: 0 18px 46px rgba(8, 119, 201, .13);
    --radius: 22px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
.container { width: min(1200px, calc(100% - 40px)); margin-inline: auto; }
.site-main { padding-top: 142px; }
.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    background: rgba(255,255,255,.94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 8px 24px rgba(8,119,201,.08);
}
.desktop-header { height: 78px; display: grid; grid-template-columns: 210px 1fr 110px; align-items: center; gap: 24px; }
.brand-logo, .mobile-logo, .drawer-logo, .footer-logo { display: inline-flex; align-items: center; }
.brand-logo img { width: 170px; max-height: 54px; object-fit: contain; }
.core-nav { display: flex; justify-content: center; gap: 8px; min-width: 0; }
.core-nav a { position: relative; padding: 12px 16px; border-radius: 999px; color: var(--ink-strong); font-weight: 700; white-space: nowrap; transition: .22s ease; }
.core-nav a:hover { color: var(--primary-dark); background: var(--surface-soft); }
.core-nav a.active { color: var(--primary-dark); }
.core-nav a.active::after { content: ""; position: absolute; left: 22px; right: 22px; bottom: 5px; height: 3px; border-radius: 99px; background: var(--primary); }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 24px; border-radius: 999px; color: #fff; font-weight: 800; background: linear-gradient(135deg, #38C7FF 0%, #1CA8F6 48%, #0877C9 100%); box-shadow: 0 12px 26px rgba(8,119,201,.18); border: 0; transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(8,119,201,.24); }
.header-register { justify-self: end; }
.channel-bar-wrap { border-top: 1px solid rgba(28,168,246,.08); background: rgba(234,247,255,.82); }
.channel-bar { height: 64px; display: flex; align-items: center; gap: 9px; overflow-x: auto; scrollbar-width: thin; scrollbar-color: rgba(8,119,201,.28) transparent; overscroll-behavior-inline: contain; }
.channel-bar::-webkit-scrollbar { height: 5px; }
.channel-bar::-webkit-scrollbar-thumb { background: rgba(8,119,201,.24); border-radius: 99px; }
.channel-pill { flex: 0 0 auto; padding: 7px 13px; border-radius: 999px; color: var(--muted); background: rgba(255,255,255,.88); border: 1px solid rgba(28,168,246,.1); font-size: 14px; transition: .2s ease; }
.channel-pill:hover, .channel-pill.active { color: #fff; background: var(--primary); border-color: var(--primary); }
.mobile-header { display: none; }
.menu-toggle { width: 44px; height: 44px; border: 0; background: var(--surface-soft); border-radius: 14px; padding: 11px; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; border-radius: 9px; background: var(--primary-dark); }
.mobile-logo img { width: 132px; max-height: 44px; object-fit: contain; }
.mobile-register { min-height: 40px; padding: 0 18px; }
.drawer-overlay { position: fixed; inset: 0; z-index: 1400; background: rgba(8,42,70,.42); opacity: 0; transition: opacity .22s ease; }
.drawer-overlay.show { opacity: 1; }
.mobile-drawer { position: fixed; inset: 0 auto 0 0; z-index: 1500; width: min(84vw, 320px); background: #fff; box-shadow: 24px 0 60px rgba(8,42,70,.2); transform: translateX(-104%); transition: transform .24s ease; overflow-y: auto; }
.mobile-drawer.open { transform: translateX(0); }
.drawer-head { position: sticky; top: 0; z-index: 2; height: 74px; padding: 14px 18px; display: flex; align-items: center; justify-content: space-between; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); }
.drawer-logo img { width: 145px; max-height: 46px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line); color: var(--primary-dark); background: var(--surface-soft); font-size: 28px; line-height: 1; }
.drawer-nav { padding: 12px 14px 30px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.drawer-nav a { padding: 11px 10px; border-radius: 12px; color: var(--ink); background: var(--surface-alt); border: 1px solid transparent; font-size: 14px; text-align: center; }
.drawer-nav a:hover, .drawer-nav a.active { color: var(--primary-dark); border-color: var(--line); background: var(--surface-soft); }
.service-float { position: fixed; z-index: 850; right: max(18px, calc((100vw - 1280px)/2)); top: 50%; transform: translateY(-32%); width: 112px; padding: 12px; border-radius: 18px; background: rgba(255,255,255,.94); box-shadow: var(--shadow-strong); border: 1px solid var(--line); display: grid; gap: 8px; }
.service-float a, .service-float button { min-height: 38px; display: flex; align-items: center; justify-content: center; padding: 6px 8px; border-radius: 12px; color: var(--primary-dark); background: var(--surface-alt); border: 0; font-size: 13px; font-weight: 700; }
.service-float .float-register { color: #fff; background: linear-gradient(135deg, #38C7FF, #0877C9); }
.mobile-bottom-nav { display: none; }

.section { padding: 34px 0; }
.section-tight { padding: 22px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 20px; }
.eyebrow { margin: 0 0 7px; color: var(--primary); font-weight: 800; letter-spacing: .12em; font-size: 13px; }
h1, h2, h3, .section-title { color: var(--primary-dark); line-height: 1.35; }
h1 { margin: 0 0 16px; font-size: clamp(30px, 4.5vw, 54px); }
h2 { margin: 0 0 14px; font-size: clamp(24px, 3vw, 36px); }
h3 { margin: 0 0 10px; font-size: 20px; }
p { margin: 0 0 14px; }
.lead { color: var(--muted); font-size: 18px; }
.text-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 800; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.card, .zone-card, .info-card, .review-card, .faq-card, .notice-card, .inner-panel { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: var(--radius); }
.content-img, .zone-card img, .app-section img, .banner-slider img { max-width: 100%; height: auto; object-fit: contain; }
.banner-slider { max-width: 1200px; margin: 24px auto 34px; border-radius: 22px; background: #fff; box-shadow: 0 16px 40px rgba(8,119,201,.10); overflow: hidden; position: relative; z-index: 1; aspect-ratio: 16 / 5.6; }
.slides { position: relative; width: 100%; height: 100%; }
.slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .45s ease; }
.slide.active { opacity: 1; visibility: visible; }
.slide img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.slider-arrow { position: absolute; z-index: 3; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border-radius: 50%; border: 1px solid rgba(255,255,255,.78); background: rgba(8,42,70,.46); color: #fff; font-size: 26px; line-height: 1; }
.slider-arrow:hover { background: rgba(8,119,201,.8); }
.slider-prev { left: 16px; }
.slider-next { right: 16px; }
.slider-dots { position: absolute; z-index: 3; left: 0; right: 0; bottom: 14px; display: flex; justify-content: center; gap: 9px; }
.slider-dot { width: 11px; height: 11px; padding: 0; border: 2px solid #fff; border-radius: 50%; background: rgba(8,42,70,.35); }
.slider-dot.active { width: 30px; border-radius: 99px; background: var(--primary); }
.brand-intro { display: grid; grid-template-columns: 1.35fr .65fr; gap: 26px; align-items: stretch; }
.brand-copy { padding: clamp(26px, 4vw, 48px); }
.brand-side { padding: 28px; background: linear-gradient(145deg, #EAF7FF, #fff); display: grid; align-content: center; gap: 12px; }
.brand-side strong { color: var(--primary-dark); font-size: 28px; }
.action-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.quick-categories { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.quick-category { padding: 18px; border-radius: 18px; background: #fff; border: 1px solid var(--line); box-shadow: 0 10px 28px rgba(8,119,201,.06); }
.quick-category h3 { font-size: 18px; }
.quick-category p { min-height: 50px; color: var(--muted); font-size: 14px; }
.platform-strip { padding: 24px 28px; border-radius: var(--radius); background: linear-gradient(100deg, #fff 0%, #EAF7FF 58%, #EDF8FF 100%); border: 1px solid var(--line); box-shadow: var(--shadow); }
.platform-strip p { margin: 0; }
.info-board { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.info-card { padding: 22px; }
.info-number { display: inline-flex; width: 44px; height: 44px; align-items: center; justify-content: center; border-radius: 14px; color: #fff; background: linear-gradient(135deg, var(--primary-bright), var(--primary-dark)); font-weight: 900; margin-bottom: 15px; }
.two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.three-column { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.zone-card { overflow: hidden; }
.zone-media { padding: 18px 18px 0; }
.zone-media img { width: 100%; max-height: 230px; object-fit: contain; border-radius: 16px; background: var(--surface-alt); }
.zone-body { padding: 24px; }
.zone-body ul, .inner-panel ul, .app-copy ul { margin: 12px 0 18px; padding-left: 20px; color: var(--muted); }
.zone-body li, .inner-panel li, .app-copy li { margin-bottom: 6px; }
.compact .zone-media img { max-height: 170px; }
.horizontal-zone { display: grid; grid-template-columns: .9fr 1.1fr; }
.horizontal-zone .zone-media { padding: 20px; display: flex; align-items: center; background: var(--surface-alt); }
.horizontal-zone .zone-media img { max-height: 280px; }
.news-wall { display: grid; grid-template-columns: 1.15fr .85fr; gap: 18px; }
.news-card { padding: 26px; }
.news-list { display: grid; gap: 12px; margin-top: 18px; }
.news-item { padding: 15px 16px; border-radius: 14px; background: var(--surface-alt); border: 1px solid rgba(28,168,246,.08); }
.security-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.security-card { padding: 25px; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.review-card { padding: 22px; }
.review-card p { color: var(--muted); }
.review-meta { color: var(--primary-dark); font-weight: 800; }
.faq-list { display: grid; gap: 12px; }
.faq-card { padding: 20px 22px; }
.faq-card summary { cursor: pointer; color: var(--primary-dark); font-weight: 800; }
.faq-card p { margin: 13px 0 0; color: var(--muted); }
.about-summary { display: grid; grid-template-columns: 1.3fr .7fr; gap: 20px; }
.about-summary > * { padding: 28px; }
.notice-card { padding: 24px 26px; background: linear-gradient(135deg, #fff, #EAF7FF); }
.notice-card strong { color: var(--primary-dark); }

.inner-hero { padding: 42px 0 24px; }
.inner-hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; align-items: center; }
.inner-hero-copy { padding: clamp(28px, 5vw, 54px); }
.inner-hero-media { padding: 22px; display: flex; align-items: center; justify-content: center; min-height: 320px; background: linear-gradient(145deg, #EAF7FF, #fff); }
.inner-hero-media img { width: 100%; max-height: 330px; object-fit: contain; }
.breadcrumb { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; color: var(--muted); font-size: 14px; }
.breadcrumb a { color: var(--primary); }
.service-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.point-card { padding: 22px; }
.point-card b { display: block; color: var(--primary-dark); font-size: 18px; margin-bottom: 7px; }
.content-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 18px; }
.inner-panel { padding: 28px; }
.inner-panel p:last-child { margin-bottom: 0; }
.page-review-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.app-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 24px; align-items: start; }
.app-visual { position: sticky; top: 166px; padding: 24px; }
.app-visual img { width: 100%; max-height: 500px; object-fit: contain; }
.app-copy { display: grid; gap: 18px; }
.app-copy .inner-panel { padding: 28px; }
.contact-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 20px; }
.contact-image { padding: 22px; }
.contact-image img { width: 100%; max-height: 420px; object-fit: contain; }
.contact-methods { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.contact-method { padding: 18px; border-radius: 16px; background: var(--surface-alt); border: 1px solid var(--line); }
.table-wrap { overflow-x: auto; border-radius: 18px; border: 1px solid var(--line); }
.info-table { width: 100%; border-collapse: collapse; background: #fff; min-width: 680px; }
.info-table th, .info-table td { padding: 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.info-table th { color: var(--primary-dark); background: var(--surface-soft); }
.info-table tr:last-child td { border-bottom: 0; }

.site-footer { margin-top: 44px; padding: 56px 0 24px; background: var(--footer); color: #EAF8FF; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 34px; }
.footer-logo img { width: 165px; max-height: 54px; object-fit: contain; filter: brightness(0) invert(1); }
.footer-brand p { margin-top: 18px; color: rgba(234,248,255,.76); }
.site-footer h2 { margin: 0 0 13px; color: #fff; font-size: 17px; }
.site-footer section > a:not(.footer-logo) { display: block; margin: 8px 0; color: rgba(234,248,255,.78); }
.site-footer section > a:hover { color: var(--cyan); }
.footer-notice { margin-top: 34px; padding-top: 22px; border-top: 1px solid rgba(234,248,255,.14); color: rgba(234,248,255,.68); font-size: 13px; }
.footer-notice p:last-child { margin-bottom: 0; }

@media (max-width: 1360px) {
    .service-float { display: none; }
}
@media (max-width: 980px) {
    .site-main { padding-top: 132px; }
    .desktop-header { grid-template-columns: 170px 1fr 98px; gap: 12px; }
    .brand-logo img { width: 145px; }
    .core-nav a { padding-inline: 10px; font-size: 14px; }
    .quick-categories, .three-column, .review-grid, .service-points { grid-template-columns: repeat(2, 1fr); }
    .info-board { grid-template-columns: repeat(2, 1fr); }
    .brand-intro, .about-summary, .inner-hero-grid, .app-layout, .contact-layout { grid-template-columns: 1fr; }
    .app-visual { position: static; }
    .footer-grid { grid-template-columns: 1.4fr repeat(3, 1fr); gap: 22px; }
}
@media (max-width: 760px) {
    .container { width: min(100% - 28px, 680px); }
    .site-main { padding-top: 74px; }
    .desktop-header, .channel-bar-wrap { display: none; }
    .mobile-header { height: 74px; display: grid; grid-template-columns: 50px 1fr 78px; align-items: center; gap: 10px; }
    .mobile-logo { justify-self: center; }
    .mobile-register { justify-self: end; padding: 0 15px; min-width: 72px; }
    .mobile-bottom-nav { position: fixed; z-index: 900; left: 0; right: 0; bottom: 0; padding: 7px 10px calc(7px + env(safe-area-inset-bottom)); display: grid; grid-template-columns: repeat(4, 1fr); background: rgba(255,255,255,.96); backdrop-filter: blur(12px); box-shadow: 0 -10px 30px rgba(8,119,201,.12); border-top: 1px solid var(--line); }
    .mobile-bottom-nav a { display: grid; justify-items: center; gap: 2px; color: var(--muted); font-size: 12px; }
    .mobile-bottom-nav a span { width: 28px; height: 28px; display: inline-flex; align-items: center; justify-content: center; border-radius: 9px; background: var(--surface-soft); color: var(--primary-dark); font-weight: 900; }
    .mobile-bottom-nav a.active { color: var(--primary-dark); font-weight: 800; }
    .site-footer { padding-bottom: 92px; }
    .banner-slider { margin: 16px 14px 26px; width: auto; aspect-ratio: 16 / 7; border-radius: 16px; }
    .slider-arrow { width: 38px; height: 38px; font-size: 21px; }
    .slider-prev { left: 9px; }
    .slider-next { right: 9px; }
    .section { padding: 25px 0; }
    .section-head { display: block; }
    .quick-categories, .three-column, .review-grid, .service-points, .info-board, .two-column, .security-grid, .page-review-grid, .content-grid, .news-wall, .about-summary, .footer-grid { grid-template-columns: 1fr; }
    .horizontal-zone { grid-template-columns: 1fr; }
    .horizontal-zone .zone-media img { max-height: 240px; }
    .brand-copy, .brand-side, .inner-panel, .inner-hero-copy { padding: 24px; }
    .inner-hero { padding-top: 24px; }
    .inner-hero-media { min-height: 220px; }
    .inner-hero-media img { max-height: 250px; }
    .contact-methods { grid-template-columns: 1fr; }
    .footer-grid { gap: 26px; }
    .footer-grid section:not(.footer-brand) { padding-top: 4px; }
}
@media (max-width: 440px) {
    .mobile-logo img { width: 116px; }
    .mobile-header { grid-template-columns: 46px 1fr 72px; }
    .mobile-register { min-width: 66px; padding-inline: 12px; }
    .drawer-nav { grid-template-columns: 1fr; }
    .banner-slider { aspect-ratio: 16 / 8.3; }
    h1 { font-size: 30px; }
    .lead { font-size: 16px; }
}