:root {
    --page: #F4FBFF;
    --surface: #FFFFFF;
    --soft: #E8F7FF;
    --primary: #10AEEA;
    --primary-dark: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --line: #D5ECF8;
    --footer: #073A68;
    --footer-text: #EAF8FF;
    --shadow: 0 16px 42px rgba(21, 90, 157, .11);
    --radius: 22px;
    --radius-sm: 14px;
    --gradient: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--text);
    background: var(--page);
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.container { width: min(1180px, calc(100% - 36px)); margin-inline: auto; }
.skip-link { position: fixed; top: -60px; left: 18px; z-index: 2000; padding: 10px 16px; color: #fff; background: var(--primary-dark); border-radius: 8px; }
.skip-link:focus { top: 12px; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, .96);
    border-bottom: 1px solid rgba(213, 236, 248, .9);
    backdrop-filter: blur(16px);
}
.header-inner { min-height: 76px; display: flex; align-items: center; gap: 18px; }
.brand-logo { display: inline-flex; flex: 0 0 auto; align-items: center; }
.brand-logo img { width: 166px; height: 48px; object-fit: contain; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: 2px; min-width: 0; margin-left: auto; white-space: nowrap; }
.desktop-nav a { position: relative; padding: 10px 9px; color: #35546D; font-size: 14px; font-weight: 600; border-radius: 10px; transition: .2s ease; }
.desktop-nav a:hover, .desktop-nav a.active { color: var(--primary-dark); background: var(--soft); }
.desktop-nav a.active::after { content: ""; position: absolute; left: 50%; bottom: 2px; width: 18px; height: 2px; transform: translateX(-50%); background: var(--gradient); border-radius: 999px; }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.main-btn, .secondary-btn, .text-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 22px; border: 0; border-radius: 999px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, opacity .2s ease; }
.main-btn { color: #fff; background: var(--gradient); box-shadow: 0 10px 24px rgba(22, 136, 216, .24); }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(22, 136, 216, .3); }
.secondary-btn { color: var(--primary-dark); background: var(--soft); border: 1px solid #BFE8FA; }
.text-btn { min-height: auto; padding: 0; color: var(--primary-dark); border-radius: 0; }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.menu-toggle span { display: block; width: 100%; height: 2px; margin: 5px 0; background: var(--primary-dark); border-radius: 999px; }
.drawer-overlay { position: fixed; inset: 0; z-index: 1100; background: rgba(4, 32, 58, .42); }
.mobile-drawer { position: fixed; top: 0; right: 0; z-index: 1200; width: min(360px, 88vw); height: 100dvh; padding: 20px; background: #fff; transform: translateX(102%); transition: transform .25s ease; overflow-y: auto; box-shadow: -20px 0 50px rgba(7, 58, 104, .2); }
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; color: var(--primary-dark); background: var(--soft); font-size: 28px; line-height: 1; }
.mobile-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; padding: 18px 0; }
.mobile-nav a { padding: 11px 12px; color: #31536F; background: #F7FCFF; border: 1px solid #E1F2FA; border-radius: 12px; text-align: center; font-size: 14px; font-weight: 600; }
.drawer-register { width: 100%; }
body.drawer-open { overflow: hidden; }
.carousel { position: relative; background: #DFF5FF; overflow: hidden; }
.carousel-viewport { overflow: hidden; }
.carousel-track { display: flex; transition: transform .55s cubic-bezier(.22,.61,.36,1); will-change: transform; }
.carousel-slide { min-width: 100%; margin: 0; }
.carousel-slide img { width: 100%; aspect-ratio: 1920 / 700; object-fit: contain; background: #E9F8FF; }
.carousel-control { position: absolute; top: 50%; z-index: 5; width: 48px; height: 48px; border: 1px solid rgba(255,255,255,.75); border-radius: 50%; color: #fff; background: rgba(7, 58, 104, .45); transform: translateY(-50%); font-size: 30px; line-height: 1; backdrop-filter: blur(8px); }
.carousel-control:hover { background: rgba(7, 58, 104, .68); }
.carousel-prev { left: max(18px, calc((100vw - 1180px)/2)); }
.carousel-next { right: max(18px, calc((100vw - 1180px)/2)); }
.carousel-dots { position: absolute; left: 50%; bottom: 18px; z-index: 5; display: flex; gap: 8px; transform: translateX(-50%); }
.carousel-dot { width: 10px; height: 10px; padding: 0; border: 1px solid rgba(255,255,255,.8); border-radius: 50%; background: rgba(7,58,104,.42); }
.carousel-dot.is-active { width: 28px; border-radius: 999px; background: #fff; }
.section { padding: 82px 0; }
.section-sm { padding: 56px 0; }
.section-soft { background: var(--soft); }
.section-white { background: #fff; }
.section-heading { max-width: 760px; margin-bottom: 32px; }
.section-heading.center { margin-inline: auto; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 10px; color: var(--primary-dark); font-size: 13px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 24px; height: 3px; background: var(--gradient); border-radius: 999px; }
h1, h2, h3 { margin: 0 0 14px; color: var(--primary-dark); line-height: 1.25; }
h1 { font-size: clamp(34px, 5vw, 60px); letter-spacing: -.04em; }
h2 { font-size: clamp(28px, 3.8vw, 42px); letter-spacing: -.025em; }
h3 { font-size: 20px; }
p { margin: 0 0 16px; }
.lead { color: #38566F; font-size: clamp(17px, 2vw, 20px); line-height: 1.85; }
.muted { color: var(--muted); }
.brand-intro { display: grid; grid-template-columns: 1.05fr .95fr; gap: 42px; align-items: center; }
.media-card { min-height: 260px; display: grid; place-items: center; padding: 22px; background: linear-gradient(145deg, #E6F8FF, #FFFFFF); border: 1px solid #D5ECF8; border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.media-card img { width: 100%; max-height: 390px; object-fit: contain; }
.action-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.quick-scroll { display: flex; gap: 10px; padding: 4px 0 12px; overflow-x: auto; scrollbar-width: thin; scroll-snap-type: x proximity; }
.quick-pill { flex: 0 0 auto; display: inline-flex; align-items: center; gap: 10px; padding: 11px 16px; color: var(--primary-dark); background: #fff; border: 1px solid #CBEAF7; border-radius: 999px; font-weight: 700; scroll-snap-align: start; }
.quick-pill span { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; color: #fff; background: var(--gradient); font-size: 12px; }
.grid-2, .grid-3, .grid-4 { display: grid; gap: 22px; }
.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)); }
.info-card, .service-card, .review-card, .faq-item, .notice-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); box-shadow: 0 10px 28px rgba(21,90,157,.07); }
.info-card, .service-card, .review-card, .notice-card { padding: 24px; }
.info-card .number { display: inline-grid; place-items: center; width: 42px; height: 42px; margin-bottom: 18px; color: #fff; background: var(--gradient); border-radius: 14px; font-weight: 800; }
.info-card p, .service-card p, .review-card p { color: var(--muted); }
.feature-card { display: grid; grid-template-columns: 1.12fr .88fr; gap: 34px; align-items: center; padding: 34px; background: linear-gradient(135deg, #FFFFFF 0%, #E8F7FF 100%); border: 1px solid #CFEAF6; border-radius: 28px; box-shadow: var(--shadow); }
.feature-card.reverse { grid-template-columns: .88fr 1.12fr; }
.feature-card.reverse .feature-media { order: -1; }
.feature-media { min-width: 0; }
.feature-media img { width: 100%; max-height: 370px; object-fit: contain; border-radius: 18px; background: rgba(255,255,255,.68); }
.feature-list { display: grid; gap: 10px; margin: 20px 0 0; padding: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 24px; color: #3B5A73; }
.feature-list li::before { content: ""; position: absolute; left: 0; top: .75em; width: 10px; height: 10px; border-radius: 50%; background: var(--gradient); transform: translateY(-50%); }
.category-card { overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.category-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: contain; padding: 12px; background: #F3FBFF; }
.category-card .card-body { padding: 22px; }
.category-card .text-link { color: var(--primary-dark); font-weight: 800; }
.app-banner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: center; padding: 42px; background: linear-gradient(135deg, #0E74BC 0%, #18C9F2 100%); border-radius: 30px; overflow: hidden; box-shadow: 0 22px 50px rgba(14,116,188,.25); }
.app-banner h2, .app-banner p { color: #fff; }
.app-banner p { opacity: .9; }
.app-banner img { width: 100%; max-height: 330px; object-fit: contain; filter: drop-shadow(0 20px 22px rgba(4,44,78,.18)); }
.app-banner .secondary-btn { background: #fff; border-color: #fff; }
.security-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 34px; align-items: center; }
.security-layout img { width: 100%; max-height: 380px; object-fit: contain; }
.safety-list { display: grid; gap: 12px; }
.safety-item { padding: 18px 20px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.safety-item strong { display: block; margin-bottom: 4px; color: var(--primary-dark); }
.review-card header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.review-card .avatar { display: grid; place-items: center; width: 40px; height: 40px; color: #fff; background: var(--gradient); border-radius: 50%; font-size: 13px; font-weight: 800; }
.review-card .user { margin-right: auto; color: var(--primary-dark); font-weight: 800; }
.review-card .tag { padding: 4px 9px; color: var(--primary-dark); background: var(--soft); border-radius: 999px; font-size: 12px; }
.help-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.help-link { display: block; padding: 22px; background: #fff; border: 1px solid var(--line); border-radius: 16px; transition: transform .2s ease, box-shadow .2s ease; }
.help-link:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.help-link strong { display: block; margin-bottom: 6px; color: var(--primary-dark); }
.faq-list { display: grid; gap: 12px; }
.faq-item { overflow: hidden; }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 22px; border: 0; color: var(--primary-dark); background: #fff; text-align: left; font-weight: 800; }
.faq-question span:last-child { font-size: 22px; transition: transform .2s ease; }
.faq-item.is-open .faq-question span:last-child { transform: rotate(45deg); }
.faq-answer { display: none; padding: 0 22px 20px; color: var(--muted); }
.faq-item.is-open .faq-answer { display: block; }
.compliance-strip { padding: 28px; color: #DFF7FF; background: var(--footer); border-radius: 22px; }
.compliance-strip h2 { color: #fff; font-size: 24px; }
.compliance-strip p:last-child { margin-bottom: 0; }
.inner-hero { padding: 66px 0 52px; background: radial-gradient(circle at 85% 20%, rgba(53,215,255,.25), transparent 30%), linear-gradient(180deg, #FFFFFF, #EDF9FF); }
.inner-hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 36px; align-items: center; }
.inner-hero .hero-copy { max-width: 680px; }
.inner-hero .hero-copy p { color: #45647D; font-size: 18px; }
.inner-hero .hero-media { min-height: 280px; display: grid; place-items: center; padding: 20px; background: rgba(255,255,255,.78); border: 1px solid var(--line); border-radius: 26px; box-shadow: var(--shadow); }
.inner-hero .hero-media img { width: 100%; max-height: 360px; object-fit: contain; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 18px; color: var(--muted); font-size: 14px; }
.breadcrumb a { color: var(--primary-dark); }
.content-stack { display: grid; gap: 24px; }
.content-panel { padding: 30px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.content-panel h2 { font-size: 30px; }
.content-panel ul, .content-panel ol { margin: 0; padding-left: 22px; color: #425F77; }
.content-panel li { margin: 8px 0; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: step; }
.step-card { position: relative; padding: 26px 22px 22px; background: #fff; border: 1px solid var(--line); border-radius: 18px; }
.step-card::before { counter-increment: step; content: counter(step); display: grid; place-items: center; width: 38px; height: 38px; margin-bottom: 16px; color: #fff; background: var(--gradient); border-radius: 12px; font-weight: 800; }
.timeline { position: relative; display: grid; gap: 20px; padding-left: 26px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 9px; bottom: 9px; width: 2px; background: #BEE9F9; }
.timeline-item { position: relative; padding: 20px 22px; background: #fff; border: 1px solid var(--line); border-radius: 16px; }
.timeline-item::before { content: ""; position: absolute; left: -26px; top: 28px; width: 14px; height: 14px; border: 3px solid #fff; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 2px #BEE9F9; }
.note-box { padding: 20px 22px; color: #2F5B74; background: #EAF8FF; border-left: 4px solid var(--primary); border-radius: 12px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.info-table { width: 100%; border-collapse: collapse; min-width: 680px; }
.info-table th, .info-table td { padding: 16px 18px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.info-table th { color: var(--primary-dark); background: #F2FBFF; }
.info-table tr:last-child td { border-bottom: 0; }
.site-footer { padding: 58px 0 26px; color: var(--footer-text); background: var(--footer); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; }
.footer-logo { margin-bottom: 16px; }
.footer-brand p { max-width: 430px; color: #CBE9F7; }
.site-footer h2 { margin-bottom: 14px; color: #fff; font-size: 17px; }
.site-footer section > a:not(.brand-logo) { display: block; margin: 8px 0; color: #CBE9F7; font-size: 14px; }
.site-footer section > a:hover { color: #fff; }
.footer-notice { margin-top: 36px; padding-top: 24px; border-top: 1px solid rgba(234,248,255,.16); color: #B7D8E8; font-size: 13px; }
.footer-notice p:last-child { margin-bottom: 0; }
@media (max-width: 1180px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: block; }
    .header-inner { min-height: 70px; }
    .brand-logo img { width: 150px; }
}
@media (max-width: 920px) {
    .section { padding: 64px 0; }
    .brand-intro, .feature-card, .feature-card.reverse, .app-banner, .security-layout, .inner-hero-grid { grid-template-columns: 1fr; }
    .feature-card.reverse .feature-media { order: 0; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .help-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1.4fr repeat(3, 1fr); gap: 24px; }
    .app-banner { padding: 32px; }
    .inner-hero { padding-top: 46px; }
}
@media (max-width: 680px) {
    .container { width: min(100% - 24px, 1180px); }
    .header-inner { gap: 10px; }
    .header-actions .main-btn { min-height: 40px; padding: 0 17px; }
    .brand-logo img { width: 132px; height: 42px; }
    .carousel-slide img { aspect-ratio: 16 / 8.5; }
    .carousel-control { width: 40px; height: 40px; font-size: 24px; }
    .carousel-prev { left: 10px; }
    .carousel-next { right: 10px; }
    .carousel-dots { bottom: 10px; }
    .section { padding: 52px 0; }
    .section-sm { padding: 42px 0; }
    .grid-2, .grid-3, .grid-4, .steps { grid-template-columns: 1fr; }
    .feature-card, .content-panel { padding: 22px; }
    .app-banner { padding: 24px; border-radius: 22px; }
    .help-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .help-link { padding: 16px; }
    .inner-hero { padding: 36px 0; }
    .inner-hero .hero-media { min-height: 220px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 420px) {
    .mobile-nav { grid-template-columns: 1fr; }
    .help-grid, .footer-grid { grid-template-columns: 1fr; }
    .footer-brand { grid-column: auto; }
    .header-actions { gap: 7px; }
    .header-actions .main-btn { padding: 0 14px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}