:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #EAF7FF;
    --surface-pale: #F2FAFF;
    --primary: #1CA8F6;
    --primary-bright: #38C7FF;
    --primary-deep: #0877C9;
    --cyan: #7FE4FF;
    --ink: #223044;
    --ink-deep: #1D2A3A;
    --muted: #5F7082;
    --footer: #082A46;
    --border: rgba(28,168,246,.14);
    --shadow: 0 16px 40px rgba(8,119,201,.09);
    --radius-lg: 24px;
    --radius-md: 18px;
    --header-h: 76px;
    --channel-h: 54px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, 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%; }
button, input, textarea, select { font: inherit; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 3000; padding: 10px 16px; border-radius: 10px; background: var(--primary-deep); color: #fff; }
.skip-link:focus { top: 12px; }
.site-header {
    position: fixed;
    inset: 0 0 auto;
    height: var(--header-h);
    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);
}
.header-inner { width: min(1200px, calc(100% - 32px)); height: 100%; margin: 0 auto; display: flex; align-items: center; gap: 26px; }
.brand-logo { flex: 0 0 auto; display: flex; align-items: center; max-width: 182px; }
.brand-logo img { width: auto; max-width: 100%; max-height: 50px; object-fit: contain; }
.core-nav { display: flex; align-items: center; justify-content: center; gap: 8px; flex: 1; min-width: 0; }
.nav-link { position: relative; padding: 10px 14px; border-radius: 999px; color: var(--ink-deep); font-weight: 650; white-space: nowrap; transition: .2s ease; }
.nav-link:hover, .nav-link.is-active { color: var(--primary-deep); background: var(--surface-soft); }
.nav-link.is-active::after { content: ""; position: absolute; left: 28%; right: 28%; bottom: 3px; height: 3px; border-radius: 999px; background: var(--primary); }
.main-btn, .float-register {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #38C7FF 0%, #1CA8F6 48%, #0877C9 100%);
    color: #fff;
    border-radius: 999px;
    box-shadow: 0 12px 26px rgba(8,119,201,.18);
    font-weight: 750;
    transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn:hover, .float-register:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(8,119,201,.24); }
.header-register { flex: 0 0 auto; min-width: 86px; padding: 10px 22px; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 0; border-radius: 12px; background: var(--surface-soft); cursor: pointer; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; border-radius: 2px; background: var(--primary-deep); }
.channel-bar { position: fixed; top: var(--header-h); left: 0; right: 0; z-index: 990; height: var(--channel-h); background: rgba(234,247,255,.94); border-bottom: 1px solid var(--border); backdrop-filter: blur(10px); }
.channel-scroll { width: min(1200px, calc(100% - 32px)); height: 100%; margin: 0 auto; display: flex; align-items: center; gap: 9px; overflow-x: auto; scrollbar-width: thin; scrollbar-color: rgba(28,168,246,.35) transparent; }
.channel-scroll::-webkit-scrollbar { height: 4px; }
.channel-pill { flex: 0 0 auto; padding: 6px 12px; border: 1px solid rgba(28,168,246,.12); border-radius: 999px; background: rgba(255,255,255,.82); color: var(--muted); font-size: 14px; line-height: 1.35; transition: .2s ease; }
.channel-pill:hover, .channel-pill.is-active { background: var(--primary); color: #fff; border-color: var(--primary); }
.drawer-overlay { position: fixed; inset: 0; z-index: 2100; background: rgba(8,42,70,.38); opacity: 0; transition: opacity .22s ease; }
.drawer-overlay.is-visible { opacity: 1; }
.mobile-drawer { position: fixed; inset: 0 auto 0 0; z-index: 2200; width: min(84vw, 320px); background: #fff; box-shadow: 20px 0 50px rgba(8,42,70,.18); transform: translateX(-105%); transition: transform .24s ease; overflow-y: auto; }
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-head { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--border); }
.drawer-logo img { width: auto; max-height: 44px; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: var(--surface-soft); color: var(--primary-deep); font-size: 28px; line-height: 1; cursor: pointer; }
.drawer-nav { padding: 14px 14px 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.drawer-link { padding: 10px 12px; border-radius: 12px; background: var(--surface-pale); color: var(--ink); font-size: 14px; }
.drawer-link:hover, .drawer-link.is-active { background: var(--primary); color: #fff; }
.page-main { min-height: 65vh; padding-top: calc(var(--header-h) + var(--channel-h) + 24px); }
.container { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }
.section { padding: 34px 0; }
.section-tight { padding: 22px 0; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.section-heading h2, .section-title, h1, h2, h3 { color: var(--primary-deep); }
.section-heading h2, .section-title { margin: 0; font-size: clamp(24px, 3vw, 36px); line-height: 1.25; }
.section-heading p { max-width: 640px; margin: 0; color: var(--muted); }
.text-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 700; }
.text-link:hover { color: var(--primary-deep); }
.card, .zone-card, .info-card, .review-card, .faq-card, .legal-card {
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    border-radius: var(--radius-md);
}
.banner-slider { width: min(1200px, calc(100% - 32px)); 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; }
.slider-track { position: relative; width: 100%; aspect-ratio: 16 / 6.3; min-height: 230px; background: #fff; }
.slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .55s ease; }
.slide.is-active { opacity: 1; visibility: visible; }
.banner-slider img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.slider-arrow { position: absolute; top: 50%; z-index: 4; width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.72); border-radius: 50%; transform: translateY(-50%); background: rgba(8,42,70,.48); color: #fff; font-size: 26px; cursor: pointer; }
.slider-arrow:hover { background: rgba(8,119,201,.82); }
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.slider-dots { position: absolute; left: 50%; bottom: 14px; z-index: 4; display: flex; gap: 8px; transform: translateX(-50%); }
.slider-dot { width: 10px; height: 10px; padding: 0; border: 0; border-radius: 50%; background: rgba(255,255,255,.62); box-shadow: 0 0 0 1px rgba(8,42,70,.18); cursor: pointer; }
.slider-dot.is-active { width: 26px; border-radius: 999px; background: var(--primary); }
.brand-intro { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; padding: 28px; }
.brand-copy h1 { margin: 0 0 16px; font-size: clamp(32px, 4vw, 52px); line-height: 1.2; }
.brand-copy p { margin: 0 0 14px; }
.brand-actions { display: flex; align-items: center; gap: 18px; margin-top: 20px; }
.brand-actions .main-btn { padding: 12px 28px; }
.content-img-wrap { display: flex; align-items: center; justify-content: center; min-height: 240px; padding: 14px; border-radius: 18px; background: linear-gradient(145deg, #EAF7FF, #fff); }
.content-img { width: 100%; max-height: 360px; object-fit: contain; }
.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(--border); box-shadow: 0 10px 28px rgba(8,119,201,.06); }
.quick-category h3 { margin: 0 0 7px; font-size: 18px; }
.quick-category p { min-height: 50px; margin: 0 0 8px; color: var(--muted); font-size: 14px; }
.platform-strip { padding: 24px 28px; border-radius: var(--radius-lg); background: linear-gradient(115deg, #fff 0%, #EAF7FF 58%, #EDF8FF 100%); border: 1px solid var(--border); box-shadow: var(--shadow); }
.platform-strip p { margin: 0; font-size: 17px; }
.info-board { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.info-card { padding: 22px; }
.info-number { display: inline-flex; min-width: 38px; height: 30px; align-items: center; justify-content: center; border-radius: 999px; background: var(--surface-soft); color: var(--primary-deep); font-weight: 800; }
.info-card h3 { margin: 12px 0 8px; }
.info-card p { margin: 0; color: var(--muted); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.zone-card { overflow: hidden; }
.zone-card img { width: 100%; height: 220px; object-fit: contain; background: #F8FCFF; padding: 12px; }
.zone-card .zone-body { padding: 22px; }
.zone-card h3 { margin: 0 0 10px; font-size: 23px; }
.zone-card p { margin: 0 0 12px; color: var(--muted); }
.zone-card ul, .feature-card ul { margin: 12px 0 14px; padding-left: 20px; }
.zone-card li, .feature-card li { margin: 5px 0; }
.feature-card { padding: 24px; }
.feature-card h2, .feature-card h3 { margin-top: 0; }
.horizontal-card { display: grid; grid-template-columns: .9fr 1.1fr; gap: 22px; align-items: center; padding: 24px; }
.horizontal-card img { width: 100%; max-height: 300px; object-fit: contain; }
.notice-wall { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.notice-card { padding: 24px; }
.notice-list { display: grid; gap: 12px; margin-top: 16px; }
.notice-item { padding: 14px 16px; border-radius: 14px; background: var(--surface-pale); }
.notice-item strong { display: block; color: var(--primary-deep); }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.safety-card { padding: 26px; }
.service-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 18px; }
.service-point { padding: 15px; border-radius: 14px; background: var(--surface-soft); }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.review-card { padding: 22px; }
.review-card p { margin: 0 0 12px; }
.review-card cite { color: var(--muted); font-style: normal; font-size: 14px; }
.faq-list { display: grid; gap: 12px; }
.faq-card { padding: 18px 20px; }
.faq-card summary { cursor: pointer; color: var(--primary-deep); font-weight: 750; }
.faq-card p { margin: 12px 0 0; color: var(--muted); }
.about-summary { padding: 28px; }
.legal-card { padding: 24px; background: linear-gradient(135deg, #fff, #EAF7FF); }
.legal-card h2 { margin-top: 0; }
.page-hero { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: center; padding: 32px; border-radius: var(--radius-lg); background: linear-gradient(135deg, #fff 0%, #EAF7FF 100%); border: 1px solid var(--border); box-shadow: var(--shadow); }
.page-hero.no-image { grid-template-columns: 1fr; }
.eyebrow { margin: 0 0 8px; color: var(--primary); font-weight: 800; letter-spacing: .08em; }
.page-hero h1 { margin: 0 0 16px; font-size: clamp(32px, 4vw, 50px); line-height: 1.2; }
.page-hero p { margin: 0 0 12px; font-size: 17px; }
.page-hero img { width: 100%; max-height: 360px; object-fit: contain; }
.content-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.content-card { padding: 24px; }
.content-card h2, .content-card h3 { margin-top: 0; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; counter-reset: step; }
.step-card { position: relative; padding: 58px 20px 20px; }
.step-card::before { counter-increment: step; content: counter(step, decimal-leading-zero); position: absolute; left: 20px; top: 17px; color: var(--primary); font-size: 26px; font-weight: 850; }
.step-card h3 { margin: 0 0 8px; }
.page-review-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.long-copy { padding: 28px; }
.long-copy h2 { margin-top: 0; }
.long-copy p { margin: 0 0 16px; }
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 18px 0; }
.feature-item { padding: 18px; border-radius: 16px; background: var(--surface-soft); }
.feature-item h3 { margin: 0 0 6px; }
.contact-methods { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.contact-method { padding: 22px; }
.site-footer { margin-top: 44px; background: var(--footer); color: #EAF8FF; }
.footer-inner { width: min(1200px, calc(100% - 32px)); margin: 0 auto; padding: 48px 0 34px; display: grid; grid-template-columns: 1.8fr repeat(3, 1fr); gap: 30px; }
.footer-brand img { width: auto; max-width: 180px; max-height: 52px; margin-bottom: 16px; object-fit: contain; }
.footer-brand p { margin: 0; color: rgba(234,248,255,.78); }
.footer-links h2 { margin: 0 0 14px; color: #fff; font-size: 17px; }
.footer-links a { display: block; margin: 7px 0; color: rgba(234,248,255,.78); }
.footer-links a:hover { color: #fff; }
.footer-notice { width: min(1200px, calc(100% - 32px)); margin: 0 auto; padding: 22px 0; border-top: 1px solid rgba(234,248,255,.12); border-bottom: 1px solid rgba(234,248,255,.12); }
.footer-notice p { margin: 6px 0; color: rgba(234,248,255,.78); font-size: 14px; }
.footer-bottom { padding: 18px 16px; text-align: center; color: rgba(234,248,255,.66); font-size: 14px; }
.service-float { position: fixed; right: max(14px, calc((100vw - 1200px)/2 - 118px)); top: 50%; z-index: 800; width: 104px; padding: 10px; display: grid; gap: 8px; transform: translateY(-50%); border-radius: 18px; background: rgba(255,255,255,.96); border: 1px solid var(--border); box-shadow: var(--shadow); }
.service-float a, .service-float button { display: block; padding: 9px 8px; border: 0; border-radius: 12px; background: var(--surface-soft); color: var(--primary-deep); text-align: center; font-size: 13px; cursor: pointer; }
.service-float .float-register { background: linear-gradient(135deg, #38C7FF, #0877C9); color: #fff; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1450px) {
    .service-float { right: 10px; }
    .container, .banner-slider, .channel-scroll, .header-inner, .footer-inner, .footer-notice { width: min(1120px, calc(100% - 150px)); }
}
@media (max-width: 1120px) {
    .service-float { display: none; }
    .container, .banner-slider, .channel-scroll, .header-inner, .footer-inner, .footer-notice { width: min(960px, calc(100% - 32px)); }
    .quick-categories, .grid-3, .content-grid, .reviews-grid { grid-template-columns: repeat(2, 1fr); }
    .info-board { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1.5fr repeat(3, 1fr); }
}
@media (max-width: 820px) {
    :root { --header-h: 66px; --channel-h: 0px; }
    .site-header { height: var(--header-h); }
    .header-inner { width: calc(100% - 24px); gap: 10px; justify-content: space-between; }
    .menu-toggle { display: block; flex: 0 0 42px; }
    .brand-logo { position: absolute; left: 50%; max-width: 146px; transform: translateX(-50%); }
    .brand-logo img { max-height: 42px; }
    .core-nav, .channel-bar { display: none; }
    .header-register { min-width: 72px; padding: 9px 15px; font-size: 14px; }
    .page-main { padding-top: calc(var(--header-h) + 16px); }
    .banner-slider { width: calc(100% - 24px); margin-top: 12px; border-radius: 16px; }
    .slider-track { aspect-ratio: 16 / 8.5; min-height: 190px; }
    .slider-arrow { width: 40px; height: 40px; }
    .slider-prev { left: 10px; }
    .slider-next { right: 10px; }
    .container, .footer-inner, .footer-notice { width: calc(100% - 24px); }
    .brand-intro, .page-hero, .horizontal-card { grid-template-columns: 1fr; }
    .page-hero { padding: 24px; }
    .content-img-wrap { min-height: 190px; }
    .grid-2, .notice-wall, .safety-grid, .page-review-grid { grid-template-columns: 1fr; }
    .service-points, .contact-methods { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
    .mobile-bottom-nav { position: fixed; left: 10px; right: 10px; bottom: max(10px, env(safe-area-inset-bottom)); z-index: 900; display: grid; grid-template-columns: repeat(4, 1fr); padding: 8px; border: 1px solid var(--border); border-radius: 18px; background: rgba(255,255,255,.96); backdrop-filter: blur(12px); box-shadow: 0 14px 40px rgba(8,42,70,.18); }
    .mobile-bottom-nav a { padding: 7px 4px; border-radius: 12px; color: var(--muted); text-align: center; font-size: 13px; }
    .mobile-bottom-nav a.is-active, .mobile-bottom-nav a:hover { background: var(--surface-soft); color: var(--primary-deep); }
    .site-footer { padding-bottom: 88px; }
}
@media (max-width: 620px) {
    .section { padding: 24px 0; }
    .section-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
    .brand-intro { padding: 22px; }
    .brand-copy h1, .page-hero h1 { font-size: 32px; }
    .quick-categories, .grid-3, .content-grid, .reviews-grid, .info-board, .steps, .feature-list { grid-template-columns: 1fr; }
    .zone-card img { height: 190px; }
    .slider-track { min-height: 160px; }
    .slider-dots { bottom: 9px; }
    .footer-inner { grid-template-columns: 1fr 1fr; gap: 22px 16px; }
    .footer-brand { grid-column: 1 / -1; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}