:root {
    --page: #EAF2FB;
    --surface: #FFFFFF;
    --soft: #F4F8FF;
    --soft-2: #EDF5FF;
    --soft-3: #E1ECF8;
    --blue: #2FA8F7;
    --cyan: #45C7FF;
    --deep: #137CD8;
    --text: #24364F;
    --muted: #5D718A;
    --line: rgba(47,168,247,.14);
    --footer: #102B46;
    --shadow: 0 18px 50px rgba(22,74,122,.10);
    --radius: 26px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { margin: 0; min-width: 320px; overflow-x: hidden; background: var(--page); color: var(--text); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; line-height: 1.75; }
body.drawer-open { overflow-y: hidden; }
a { color: inherit; text-decoration: none; touch-action: manipulation; }
button { font: inherit; touch-action: manipulation; }
img { display: block; max-width: 100%; height: auto; }
.shell { width: min(1180px, calc(100% - 36px)); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 12000; background: #fff; color: var(--deep); padding: 10px 16px; border-radius: 12px; }
.skip-link:focus { top: 12px; }
.site-header { position: fixed; inset: 0 0 auto 0; z-index: 9000; height: 76px; background: rgba(255,255,255,.92); border-bottom: 1px solid var(--line); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
.desktop-header { height: 76px; display: grid; grid-template-columns: 210px 1fr auto; align-items: center; gap: 24px; }
.brand-logo img { width: 144px; max-height: 52px; object-fit: contain; }
.core-nav { display: flex; justify-content: center; gap: 6px; white-space: nowrap; }
.core-nav a { position: relative; min-height: 44px; display: inline-flex; align-items: center; padding: 0 17px; border-radius: 13px; color: var(--muted); font-weight: 700; }
.core-nav a:hover { color: var(--deep); background: var(--soft-2); }
.core-nav a.active { color: var(--deep); }
.core-nav a.active::after { content: ""; position: absolute; left: 35%; right: 35%; bottom: 2px; height: 3px; border-radius: 99px; background: var(--blue); }
.main-btn { display: inline-flex; min-height: 44px; min-width: 88px; align-items: center; justify-content: center; padding: 0 24px; border: 0; border-radius: 999px; color: #fff; font-weight: 800; background: linear-gradient(135deg, #45C7FF 0%, #2FA8F7 48%, #137CD8 100%); box-shadow: 0 12px 26px rgba(19,124,216,.18); }
.main-btn:hover { transform: translateY(-1px); box-shadow: 0 16px 30px rgba(19,124,216,.24); }
.header-register { justify-self: end; }
.mobile-header { display: none; }
.channel-bar { position: fixed; top: 76px; left: 0; right: 0; z-index: 8800; background: rgba(244,248,255,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.channel-scroll { display: flex; gap: 8px; overflow-x: auto; overscroll-behavior-x: contain; padding-top: 10px; padding-bottom: 10px; scrollbar-width: none; }
.channel-scroll::-webkit-scrollbar { display: none; }
.channel-scroll a { flex: 0 0 auto; min-height: 34px; display: inline-flex; align-items: center; padding: 0 13px; border-radius: 999px; color: var(--muted); font-size: 14px; font-weight: 700; }
.channel-scroll a:hover, .channel-scroll a.active { color: #fff; background: var(--blue); }
main { padding-top: 130px; }
.section { padding: 44px 0; }
.section.compact { padding: 26px 0; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 22px; }
.section-head h1, .section-head h2 { margin: 0; color: var(--deep); line-height: 1.25; letter-spacing: -.02em; }
.section-head h1 { font-size: clamp(30px, 4vw, 50px); }
.section-head h2 { font-size: clamp(25px, 3vw, 36px); }
.section-head p { max-width: 700px; margin: 8px 0 0; color: var(--muted); }
.eyebrow { display: inline-flex; margin-bottom: 10px; color: var(--blue); font-size: 13px; font-weight: 900; letter-spacing: .12em; }
.text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--deep); font-weight: 800; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.hero-card, .content-card, .info-strip, .faq-item, .quote-card { background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); }
.hero-card { display: grid; grid-template-columns: 1.1fr .9fr; gap: 36px; align-items: center; padding: clamp(26px, 5vw, 58px); border-radius: 34px; overflow: hidden; }
.hero-copy h1 { margin: 0 0 16px; color: var(--deep); font-size: clamp(34px, 5vw, 58px); line-height: 1.12; }
.hero-copy p { margin: 0 0 24px; color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; }
.secondary-btn { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; padding: 0 22px; border-radius: 999px; background: var(--soft-2); color: var(--deep); font-weight: 800; border: 1px solid var(--line); }
.hero-media { display: flex; align-items: center; justify-content: center; min-height: 270px; border-radius: 26px; background: linear-gradient(145deg, var(--soft), var(--soft-3)); overflow: hidden; }
.hero-media img { width: 100%; height: 100%; max-height: 430px; object-fit: contain; }
.banner-wrap { padding: 26px 0 18px; }
.banner-slider { position: relative; z-index: 1; overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: 32px; box-shadow: var(--shadow); aspect-ratio: 16/6.4; }
.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-control { position: absolute; top: 50%; z-index: 3; width: 48px; height: 48px; margin-top: -24px; border: 1px solid rgba(255,255,255,.75); border-radius: 50%; background: rgba(16,43,70,.42); color: #fff; cursor: pointer; }
.slider-prev { left: 18px; }.slider-next { right: 18px; }
.slider-dots { position: absolute; z-index: 3; left: 50%; bottom: 16px; display: flex; gap: 9px; transform: translateX(-50%); }
.slider-dot { width: 11px; height: 11px; padding: 0; border: 2px solid #fff; border-radius: 50%; background: rgba(16,43,70,.35); cursor: pointer; }
.slider-dot.active { width: 28px; border-radius: 99px; background: var(--blue); }
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.content-card { padding: 25px; border-radius: var(--radius); }
.content-card h2, .content-card h3 { margin: 0 0 10px; color: var(--deep); line-height: 1.35; }
.content-card p { margin: 0 0 14px; color: var(--muted); }
.content-card p:last-child { margin-bottom: 0; }
.card-media { margin: -25px -25px 20px; padding: 16px; height: 220px; background: var(--soft); border-radius: 25px 25px 18px 18px; overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: contain; }
.link-card { display: flex; min-height: 185px; flex-direction: column; justify-content: space-between; transition: transform .2s ease, box-shadow .2s ease; }
.link-card:hover { transform: translateY(-4px); box-shadow: 0 24px 58px rgba(22,74,122,.14); }
.link-card .index { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 14px; background: var(--soft-2); color: var(--deep); font-weight: 900; }
.info-strip { padding: 24px 28px; border-radius: 24px; background: linear-gradient(135deg, #fff, #EDF5FF); }
.info-strip p { margin: 0; color: var(--muted); }
.feature-list { margin: 14px 0 0; padding: 0; list-style: none; }
.feature-list li { position: relative; padding: 8px 0 8px 24px; color: var(--muted); }
.feature-list li::before { content: ""; position: absolute; left: 0; top: 17px; width: 9px; height: 9px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 5px rgba(47,168,247,.12); }
.split-feature { display: grid; grid-template-columns: .95fr 1.05fr; gap: 24px; align-items: stretch; }
.split-feature.reverse { grid-template-columns: 1.05fr .95fr; }
.split-feature.reverse .feature-image { order: 2; }
.feature-image { min-height: 360px; padding: 20px; display: flex; align-items: center; justify-content: center; border-radius: 30px; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden; }
.feature-image img { width: 100%; height: 100%; max-height: 430px; object-fit: contain; }
.feature-copy { padding: clamp(26px, 4vw, 44px); border-radius: 30px; background: var(--surface); border: 1px solid var(--line); }
.feature-copy h2 { margin: 0 0 14px; color: var(--deep); font-size: clamp(25px, 3vw, 36px); }
.feature-copy p { color: var(--muted); }
.stat-board .content-card { background: linear-gradient(150deg, #fff, var(--soft)); }
.stat-board strong { display: block; margin-bottom: 7px; color: var(--deep); font-size: 20px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.tag { display: inline-flex; min-height: 34px; align-items: center; padding: 0 13px; border-radius: 999px; color: var(--deep); background: var(--soft-2); font-size: 14px; font-weight: 800; }
.quote-card { padding: 24px; border-radius: 22px; }
.quote-card p { margin: 0 0 14px; color: var(--muted); }
.quote-card strong { color: var(--deep); }
.faq-list { display: grid; gap: 14px; }
.faq-item { padding: 23px 26px; border-radius: 22px; }
.faq-item h3 { margin: 0 0 9px; color: var(--deep); font-size: 18px; }
.faq-item p { margin: 0; color: var(--muted); }
.notice { padding: 24px 28px; border-radius: 24px; color: #EAF6FF; background: linear-gradient(135deg, #137CD8, #102B46); }
.notice h2 { margin: 0 0 8px; color: #fff; }
.notice p { margin: 0; color: #EAF6FF; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; color: var(--muted); font-size: 14px; }
.breadcrumb a { color: var(--deep); }
.article-card { padding: clamp(26px, 5vw, 58px); border-radius: 32px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.article-card h2 { margin: 34px 0 10px; color: var(--deep); }
.article-card h2:first-child { margin-top: 0; }
.article-card p { color: var(--muted); }
.article-card .lead { color: var(--text); font-size: 18px; }
.floating-service { position: fixed; z-index: 8000; right: max(18px, calc((100vw - 1280px)/2)); top: 50%; width: 112px; padding: 12px; display: grid; gap: 8px; transform: translateY(-45%); border-radius: 20px; background: rgba(255,255,255,.94); border: 1px solid var(--line); box-shadow: var(--shadow); }
.floating-service a:not(.main-btn), .floating-service button { min-height: 38px; display: flex; align-items: center; justify-content: center; border: 0; border-radius: 12px; color: var(--deep); background: var(--soft); font-size: 13px; font-weight: 800; cursor: pointer; }
.floating-service .main-btn { min-width: 0; min-height: 40px; padding: 0 10px; }
.mobile-drawer { position: fixed; z-index: 10000; inset: 0 auto 0 0; width: min(86vw, 360px); padding: 18px; overflow-y: auto; background: #fff; transform: translateX(-105%); transition: transform .26s ease; visibility: hidden; }
.mobile-drawer.is-open { transform: translateX(0); visibility: visible; }
.drawer-mask { position: fixed; z-index: 9990; inset: 0; background: rgba(16,43,70,.48); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .26s ease, visibility .26s ease; }
.drawer-mask.is-visible { opacity: 1; visibility: visible; pointer-events: auto; }
.drawer-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.drawer-head img { width: 128px; max-height: 48px; object-fit: contain; }
.drawer-close { width: 44px; height: 44px; border: 0; border-radius: 14px; color: var(--deep); background: var(--soft-2); font-size: 28px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 9px; padding: 18px 0 28px; }
.drawer-nav a { min-height: 44px; display: flex; align-items: center; padding: 0 13px; border-radius: 13px; color: var(--muted); background: var(--soft); font-weight: 700; }
.drawer-nav a.active { color: #fff; background: var(--blue); }
.site-footer { margin-top: 40px; padding: 56px 0 26px; color: #EAF6FF; background: var(--footer); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 32px; }
.footer-brand img { width: 146px; max-height: 52px; object-fit: contain; filter: brightness(0) invert(1); }
.site-footer h2 { margin: 0 0 13px; color: #fff; font-size: 17px; }
.site-footer p { margin: 12px 0 0; color: rgba(234,246,255,.78); font-size: 14px; }
.site-footer a { display: block; margin: 7px 0; color: rgba(234,246,255,.82); font-size: 14px; }
.site-footer a:hover { color: #fff; }
.footer-bottom { margin-top: 34px; padding-top: 22px; display: flex; justify-content: space-between; gap: 18px; border-top: 1px solid rgba(234,246,255,.14); color: rgba(234,246,255,.66); font-size: 13px; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1320px) { .floating-service { display: none; } }
@media (max-width: 900px) {
    .desktop-header { grid-template-columns: 160px 1fr auto; gap: 10px; }
    .core-nav a { padding: 0 10px; font-size: 14px; }
    .grid-4 { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .grid-3 { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .hero-card, .split-feature, .split-feature.reverse { grid-template-columns: 1fr; }
    .split-feature.reverse .feature-image { order: initial; }
    .footer-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 700px) {
    .shell { width: min(100% - 24px, 1180px); }
    .site-header { height: 64px; }
    .desktop-header, .channel-bar { display: none; }
    .mobile-header { height: 64px; display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 8px; }
    .menu-toggle { width: 44px; height: 44px; padding: 10px; display: grid; gap: 5px; align-content: center; border: 0; border-radius: 13px; background: var(--soft-2); cursor: pointer; }
    .menu-toggle span { display: block; height: 2px; border-radius: 99px; background: var(--deep); }
    .mobile-logo { justify-self: center; }
    .mobile-logo img { width: 120px; max-height: 45px; object-fit: contain; }
    .mobile-register { z-index: 9001; min-width: 70px; min-height: 42px; padding: 0 16px; }
    main { padding-top: 64px; }
    .section { padding: 31px 0; }
    .banner-wrap { padding-top: 16px; }
    .banner-slider { border-radius: 21px; aspect-ratio: 16/8.4; }
    .slider-control { width: 42px; height: 42px; margin-top: -21px; }
    .slider-prev { left: 10px; }.slider-next { right: 10px; }
    .slider-dots { bottom: 10px; }
    .hero-card { padding: 25px; gap: 22px; border-radius: 25px; }
    .hero-copy h1 { font-size: 36px; }
    .hero-media { min-height: 220px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .section-head { align-items: start; flex-direction: column; }
    .feature-image { min-height: 260px; }
    .content-card, .quote-card, .faq-item { padding: 21px; }
    .card-media { margin: -21px -21px 18px; height: 205px; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-bottom { flex-direction: column; padding-bottom: 72px; }
    .mobile-bottom-nav { position: fixed; z-index: 8500; left: 8px; right: 8px; bottom: max(8px, env(safe-area-inset-bottom)); height: 64px; display: grid; grid-template-columns: repeat(4,1fr); padding: 7px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.96); box-shadow: 0 15px 35px rgba(16,43,70,.18); backdrop-filter: blur(16px); }
    .mobile-bottom-nav a { min-width: 44px; min-height: 48px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; border-radius: 13px; color: var(--muted); font-size: 12px; font-weight: 800; }
    .mobile-bottom-nav a:hover { color: var(--deep); background: var(--soft-2); }
    .mobile-bottom-nav span { font-size: 18px; line-height: 1; }
    .site-footer { padding-bottom: 20px; }
    .article-card { padding: 25px; border-radius: 24px; }
}
@media (max-width: 420px) {
    .mobile-logo img { width: 104px; }
    .mobile-register { min-width: 64px; padding: 0 13px; }
    .drawer-nav { grid-template-columns: 1fr; }
    .hero-copy h1 { font-size: 32px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}