:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #E8F7FF;
    --primary: #10AEEA;
    --primary-strong: #1688D8;
    --deep-blue: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --border: rgba(16, 174, 234, 0.18);
    --footer: #073A68;
    --shadow: 0 18px 50px rgba(21, 90, 157, 0.10);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --container: min(100% - 32px, 1240px);
    --header-h: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    color: var(--text);
    background:
        radial-gradient(circle at 8% 8%, rgba(53, 215, 255, 0.12), transparent 24rem),
        linear-gradient(180deg, #F7FCFF 0%, var(--bg) 44%, #F9FDFF 100%);
    font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }
figure { margin: 0; }

.skip-link {
    position: fixed;
    left: 16px;
    top: -80px;
    z-index: 9999;
    padding: 10px 16px;
    color: #fff;
    background: var(--deep-blue);
    border-radius: 10px;
    transition: top .2s ease;
}
.skip-link:focus { top: 12px; }

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 1000;
    height: var(--header-h);
    background: rgba(255,255,255,.94);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 30px rgba(21, 90, 157, 0.07);
    backdrop-filter: blur(16px);
}
.header-inner {
    width: min(100% - 32px, 1360px);
    height: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: clamp(12px, 1.5vw, 24px);
}
.brand-logo { flex: 0 0 auto; display: inline-flex; align-items: center; }
.brand-logo img { width: auto; height: 46px; object-fit: contain; }
.desktop-nav {
    min-width: 0;
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: clamp(8px, .85vw, 16px);
    overflow: hidden;
}
.desktop-nav a {
    flex: 0 0 auto;
    white-space: nowrap;
    color: #36566F;
    font-size: clamp(12px, .92vw, 15px);
    font-weight: 700;
    transition: color .2s ease;
}
.desktop-nav a:hover, .desktop-nav a.active { color: var(--primary-strong); }
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 24px;
    border: 0;
    border-radius: 999px;
    color: #fff;
    background: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
    box-shadow: 0 12px 24px rgba(22, 136, 216, 0.22);
    font-weight: 800;
    white-space: nowrap;
    transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(22, 136, 216, 0.28); }
.header-register { flex: 0 0 auto; min-width: 76px; }
.menu-toggle {
    display: none;
    width: 46px;
    height: 46px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--surface-soft);
    padding: 11px;
    cursor: pointer;
}
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--deep-blue); border-radius: 2px; }

.drawer-overlay { position: fixed; inset: 0; z-index: 1090; background: rgba(7,58,104,.42); }
.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1100;
    width: min(88vw, 380px);
    height: 100dvh;
    padding: 22px;
    background: #fff;
    box-shadow: -20px 0 50px rgba(7,58,104,.18);
    transform: translateX(105%);
    transition: transform .3s ease;
    overflow-y: auto;
}
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 12px; color: var(--deep-blue); background: var(--surface-soft); font-size: 28px; cursor: pointer; }
.mobile-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; padding: 22px 0; }
.mobile-nav a { padding: 11px 12px; border: 1px solid var(--border); border-radius: 12px; color: #36566F; background: #FBFEFF; font-weight: 700; text-align: center; }
.mobile-nav a.active { color: #fff; background: linear-gradient(135deg, #35D7FF, #1688D8); }
.drawer-register { width: 100%; }

main { padding-top: var(--header-h); }
.section-shell { width: var(--container); margin-inline: auto; }
.section-block { padding: clamp(64px, 7vw, 104px) 0; }
.section-block.compact { padding: clamp(48px, 5vw, 72px) 0; }
.section-soft { background: linear-gradient(180deg, rgba(232,247,255,.78), rgba(244,251,255,.42)); border-block: 1px solid var(--border); }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-strong);
    font-size: 13px;
    font-weight: 900;
    letter-spacing: .14em;
    text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 26px; height: 3px; border-radius: 999px; background: linear-gradient(90deg, #35D7FF, #1688D8); }
.section-heading { max-width: 760px; margin-bottom: 30px; }
.section-heading h2, .page-hero h1, .intro-panel h1 { margin: 10px 0 14px; color: var(--deep-blue); line-height: 1.22; letter-spacing: -.025em; }
.section-heading h2 { font-size: clamp(28px, 4vw, 46px); }
.section-heading p, .page-hero p, .intro-panel p { margin: 0; color: var(--muted); font-size: clamp(15px, 1.2vw, 18px); }

.carousel-wrap { width: min(100% - 24px, 1420px); margin: 24px auto 0; }
.carousel {
    position: relative;
    overflow: hidden;
    border-radius: clamp(18px, 2.5vw, 32px);
    background: var(--surface-soft);
    box-shadow: var(--shadow);
    aspect-ratio: 16 / 6.2;
}
.carousel-track { display: flex; height: 100%; transition: transform .55s cubic-bezier(.22,.61,.36,1); }
.carousel-slide { min-width: 100%; height: 100%; }
.carousel-slide img { width: 100%; height: 100%; object-fit: contain; background: #EAF8FF; }
.carousel-arrow {
    position: absolute;
    top: 50%;
    z-index: 2;
    width: 46px;
    height: 46px;
    border: 1px solid rgba(255,255,255,.6);
    border-radius: 50%;
    color: #fff;
    background: rgba(7,58,104,.48);
    transform: translateY(-50%);
    cursor: pointer;
    font-size: 26px;
    backdrop-filter: blur(6px);
}
.carousel-arrow.prev { left: 18px; }
.carousel-arrow.next { right: 18px; }
.carousel-dots { position: absolute; left: 50%; bottom: 16px; z-index: 2; display: flex; gap: 9px; transform: translateX(-50%); }
.carousel-dot { width: 10px; height: 10px; padding: 0; border: 0; border-radius: 50%; background: rgba(255,255,255,.65); cursor: pointer; }
.carousel-dot.active { width: 28px; border-radius: 999px; background: #fff; }

.intro-panel {
    width: var(--container);
    margin: clamp(42px, 6vw, 82px) auto;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
    gap: 32px;
    align-items: center;
    padding: clamp(28px, 4vw, 52px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,.88);
    box-shadow: var(--shadow);
}
.intro-panel h1 { font-size: clamp(32px, 5vw, 58px); }
.intro-aside { display: grid; gap: 14px; }
.metric-card { padding: 20px; border-radius: 18px; background: var(--surface-soft); border: 1px solid var(--border); }
.metric-card strong { display: block; color: var(--deep-blue); font-size: 20px; }
.metric-card span { color: var(--muted); font-size: 14px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 24px; }
.text-btn { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; padding: 0 20px; border: 1px solid var(--border); border-radius: 999px; color: var(--deep-blue); background: #fff; font-weight: 800; }

.page-hero {
    margin-top: 34px;
    padding: clamp(34px, 5vw, 66px);
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr);
    align-items: center;
    gap: clamp(28px, 5vw, 64px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(255,255,255,.96), rgba(232,247,255,.96));
    box-shadow: var(--shadow);
}
.page-hero:not(:has(.page-hero__media)) { grid-template-columns: 1fr; }
.page-hero h1 { font-size: clamp(34px, 5vw, 60px); }
.page-hero__media { overflow: hidden; border-radius: 22px; background: #fff; border: 1px solid var(--border); }
.page-hero__media img { width: 100%; max-height: 420px; object-fit: contain; }

.quick-grid, .card-grid, .review-grid, .faq-grid, .link-grid { display: grid; gap: 20px; }
.quick-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card-grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.quick-card, .content-card, .review-card, .faq-card, .info-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: rgba(255,255,255,.94);
    box-shadow: 0 12px 34px rgba(21,90,157,.07);
}
.quick-card, .content-card, .review-card, .faq-card, .info-card { padding: 24px; }
.quick-card { min-height: 228px; display: flex; flex-direction: column; }
.quick-card h3, .content-card h3, .faq-card h3, .info-card h3 { margin: 0 0 10px; color: var(--deep-blue); font-size: 21px; line-height: 1.35; }
.quick-card p, .content-card p, .review-card p, .faq-card p, .info-card p { margin: 0; color: var(--muted); }
.quick-card a { margin-top: auto; padding-top: 16px; color: var(--primary-strong); font-weight: 800; }
.content-card.media-card { padding: 0; overflow: hidden; }
.media-card img { width: 100%; aspect-ratio: 16/10; object-fit: contain; background: var(--surface-soft); }
.media-card__body { padding: 24px; }
.card-link { display: inline-flex; margin-top: 16px; color: var(--primary-strong); font-weight: 800; }

.split-layout { display: grid; grid-template-columns: minmax(280px, .92fr) minmax(0, 1.08fr); gap: clamp(26px, 5vw, 60px); align-items: center; }
.split-layout.reverse .split-media { order: 2; }
.split-media { overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow); }
.split-media img { width: 100%; max-height: 520px; object-fit: contain; }
.split-copy h2 { margin: 10px 0 14px; color: var(--deep-blue); font-size: clamp(28px, 4vw, 46px); line-height: 1.25; }
.split-copy p { color: var(--muted); }
.check-list { display: grid; gap: 12px; padding: 0; margin: 22px 0 0; list-style: none; }
.check-list li { position: relative; padding-left: 30px; color: #36566F; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 21px; height: 21px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: linear-gradient(135deg, #35D7FF, #1688D8); font-size: 12px; font-weight: 900; }

.review-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.review-card__top { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.review-avatar { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: linear-gradient(135deg, #35D7FF, #1688D8); font-weight: 900; }
.review-card strong { display: block; color: var(--deep-blue); }
.review-card small { display: block; color: var(--muted); }

.faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.faq-card { min-height: 100%; }
.faq-card h3 { font-size: 18px; }

.notice-band {
    display: grid;
    grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr);
    gap: 28px;
    align-items: center;
    padding: clamp(28px, 4vw, 46px);
    color: #fff;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #0D78BD 0%, #0EADE7 65%, #39D8F8 100%);
    box-shadow: 0 22px 52px rgba(22,136,216,.22);
}
.notice-band h2 { margin: 8px 0 0; font-size: clamp(26px, 4vw, 44px); line-height: 1.25; }
.notice-band p { margin: 0; color: rgba(255,255,255,.9); }
.notice-band .eyebrow { color: #fff; }
.notice-band .eyebrow::before { background: #fff; }

.compliance-panel {
    width: var(--container);
    margin: clamp(54px, 7vw, 90px) auto;
    padding: clamp(28px, 4vw, 46px);
    display: grid;
    grid-template-columns: minmax(240px,.72fr) minmax(0,1.28fr);
    gap: 30px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow);
}
.compliance-panel h2 { margin: 10px 0 0; color: var(--deep-blue); font-size: clamp(26px, 3.5vw, 40px); line-height: 1.3; }
.compliance-panel p { margin: 0; color: var(--muted); }
.compliance-panel p + p { margin-top: 12px; }

.contact-list { display: grid; gap: 12px; margin-top: 20px; }
.contact-list div { padding: 16px 18px; border-radius: 14px; background: var(--surface-soft); color: #36566F; }

.site-footer { margin-top: 80px; color: #EAF8FF; background: var(--footer); }
.footer-inner {
    width: var(--container);
    margin: 0 auto;
    padding: 56px 0 38px;
    display: grid;
    grid-template-columns: minmax(260px, 1.5fr) repeat(3, minmax(140px, .65fr));
    gap: 36px;
}
.footer-logo { padding: 7px 12px; border-radius: 12px; background: #FFFFFF; }
.footer-brand p { max-width: 480px; color: rgba(234,248,255,.76); }
.footer-column { display: grid; align-content: start; gap: 8px; }
.footer-column h2 { margin: 0 0 8px; color: #fff; font-size: 16px; }
.footer-column a { color: rgba(234,248,255,.76); }
.footer-column a:hover { color: #fff; }
.footer-bottom { width: var(--container); margin: 0 auto; padding: 22px 0 34px; border-top: 1px solid rgba(234,248,255,.16); display: flex; justify-content: space-between; gap: 20px; color: rgba(234,248,255,.7); font-size: 13px; }
.footer-bottom p { margin: 0; }

@media (max-width: 1179px) {
    .desktop-nav { display: none; }
    .header-inner { justify-content: space-between; }
    .header-register { margin-left: auto; }
    .menu-toggle { display: block; flex: 0 0 auto; }
}
@media (max-width: 980px) {
    .quick-grid, .card-grid.cols-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .card-grid.cols-3, .review-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .page-hero, .intro-panel, .split-layout, .compliance-panel { grid-template-columns: 1fr; }
    .split-layout.reverse .split-media { order: initial; }
    .page-hero__media img { max-height: 360px; }
    .notice-band { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 680px) {
    :root { --container: min(100% - 24px, 1240px); --header-h: 68px; }
    .header-inner { width: min(100% - 20px, 1360px); gap: 10px; }
    .brand-logo img { height: 38px; max-width: 140px; }
    .header-register { min-width: 68px; min-height: 40px; padding: 0 18px; }
    .menu-toggle { width: 42px; height: 42px; padding: 9px; }
    .carousel-wrap { width: calc(100% - 16px); margin-top: 12px; }
    .carousel { aspect-ratio: 16 / 9; border-radius: 18px; }
    .carousel-arrow { width: 38px; height: 38px; font-size: 22px; }
    .carousel-arrow.prev { left: 10px; }
    .carousel-arrow.next { right: 10px; }
    .carousel-dots { bottom: 10px; }
    .intro-panel, .page-hero { padding: 26px 20px; border-radius: 20px; }
    .intro-panel h1, .page-hero h1 { font-size: 34px; }
    .quick-grid, .card-grid.cols-2, .card-grid.cols-3, .card-grid.cols-4, .review-grid, .faq-grid { grid-template-columns: 1fr; }
    .quick-card { min-height: auto; }
    .section-block { padding: 58px 0; }
    .notice-band, .compliance-panel { padding: 26px 22px; border-radius: 20px; }
    .footer-inner { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-bottom { flex-direction: column; }
}
@media (max-width: 420px) {
    .brand-logo img { max-width: 118px; }
    .header-register { min-width: 60px; padding: 0 14px; }
    .mobile-nav { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; }
    .footer-brand { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}