:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #E8F7FF;
    --primary: #10AEEA;
    --primary-strong: #1688D8;
    --blue-deep: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --border: rgba(16, 174, 234, 0.18);
    --shadow: 0 18px 50px rgba(21, 90, 157, 0.12);
    --shadow-soft: 0 10px 28px rgba(21, 90, 157, 0.08);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --container: min(100% - 32px, 1360px);
    --gradient: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
}
* { 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% 12%, rgba(53, 215, 255, 0.13), transparent 28%),
        radial-gradient(circle at 92% 28%, rgba(22, 136, 216, 0.10), transparent 26%),
        var(--bg);
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.75;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.skip-link {
    position: fixed; left: 16px; top: -100px; z-index: 2000;
    padding: 10px 16px; border-radius: 10px; color: #fff; background: var(--primary-strong);
}
.skip-link:focus { top: 16px; }
.site-header {
    position: fixed; inset: 0 0 auto; z-index: 1000;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
    box-shadow: 0 8px 30px rgba(21, 90, 157, 0.07);
}
.header-inner {
    width: var(--container); min-height: 78px; margin: 0 auto;
    display: flex; align-items: center; gap: clamp(12px, 1.8vw, 26px);
}
.brand-logo { flex: 0 0 auto; width: clamp(118px, 10vw, 156px); }
.brand-logo img, .drawer-logo img, .footer-brand img { width: 100%; object-fit: contain; }
.desktop-nav {
    flex: 1; min-width: 0; display: flex; align-items: center; justify-content: center;
    gap: clamp(5px, 0.72vw, 12px); overflow: hidden;
}
.desktop-nav a {
    white-space: nowrap; flex: 0 0 auto; padding: 10px clamp(5px, 0.56vw, 9px);
    border-radius: 11px; color: var(--text); font-size: clamp(12px, 0.84vw, 14px); font-weight: 650;
    transition: .2s ease;
}
.desktop-nav a:hover, .desktop-nav a.active, .mobile-nav a:hover, .mobile-nav a.active {
    color: var(--primary-strong); background: var(--surface-soft);
}
.header-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
.main-btn, .text-btn {
    display: inline-flex; align-items: center; justify-content: center; min-height: 44px;
    padding: 0 24px; border: 0; border-radius: 999px; font-weight: 750; white-space: nowrap;
    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, .25); }
.main-btn:hover, .text-btn:hover { transform: translateY(-2px); }
.text-btn { color: var(--primary-strong); background: var(--surface-soft); border: 1px solid var(--border); }
.menu-toggle {
    display: none; width: 46px; height: 46px; padding: 0; border: 1px solid var(--border);
    border-radius: 14px; background: #fff; align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.menu-toggle span { width: 21px; height: 2px; border-radius: 10px; background: var(--primary-strong); }
.site-main { width: var(--container); margin: 0 auto; padding: 106px 0 72px; }
.section { margin-top: clamp(52px, 7vw, 96px); }
.section-heading { max-width: 760px; margin-bottom: 28px; }
.section-heading.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
    display: inline-flex; margin-bottom: 10px; color: var(--primary-strong); font-size: 13px;
    font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
}
h1, h2, h3 { margin: 0; color: var(--blue-deep); line-height: 1.28; }
h1 { font-size: clamp(36px, 5vw, 68px); letter-spacing: -.04em; }
h2 { font-size: clamp(28px, 3.5vw, 44px); letter-spacing: -.025em; }
h3 { font-size: clamp(19px, 2vw, 24px); }
p { margin: 0; }
.section-heading p, .page-hero-copy > p, .intro-copy > p { margin-top: 14px; color: var(--muted); font-size: clamp(15px, 1.3vw, 18px); }
.page-hero {
    min-height: 480px; padding: clamp(30px, 5vw, 68px);
    display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(340px, .94fr); align-items: center; gap: clamp(28px, 5vw, 72px);
    border: 1px solid var(--border); border-radius: var(--radius-lg); background: linear-gradient(145deg, rgba(255,255,255,.98), rgba(232,247,255,.88)); box-shadow: var(--shadow);
}
.page-hero-copy > p { max-width: 760px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.page-hero-media { min-height: 300px; display: flex; align-items: center; justify-content: center; }
.page-hero-media img { width: 100%; max-height: 430px; object-fit: contain; border-radius: 22px; }
.carousel {
    position: relative; overflow: hidden; border-radius: var(--radius-lg); background: var(--surface-soft); box-shadow: var(--shadow); border: 1px solid var(--border);
}
.carousel-track { display: flex; transition: transform .55s cubic-bezier(.22,.61,.36,1); }
.carousel-slide { min-width: 100%; background: #dff4ff; }
.carousel-slide img { width: 100%; height: clamp(260px, 45vw, 620px); object-fit: contain; }
.carousel-arrow {
    position: absolute; top: 50%; z-index: 2; width: 46px; height: 46px; transform: translateY(-50%);
    border: 1px solid rgba(255,255,255,.7); border-radius: 50%; color: #fff; background: rgba(7,58,104,.45); backdrop-filter: blur(8px);
    font-size: 26px; line-height: 1;
}
.carousel-arrow:hover { background: rgba(7,58,104,.72); }
.carousel-prev { left: 18px; }
.carousel-next { right: 18px; }
.carousel-dots { position: absolute; z-index: 2; left: 50%; bottom: 18px; transform: translateX(-50%); display: flex; gap: 9px; }
.carousel-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(7,58,104,.12); }
.carousel-dot.active { width: 28px; border-radius: 999px; background: #fff; }
.intro-panel, .content-panel, .split-panel, .compliance-card {
    border: 1px solid var(--border); border-radius: var(--radius-lg); background: rgba(255,255,255,.92); box-shadow: var(--shadow-soft);
}
.intro-panel { padding: clamp(30px, 5vw, 64px); display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; }
.intro-copy .hero-actions { margin-top: 24px; }
.intro-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.stat-card { padding: 24px; border-radius: var(--radius-md); background: var(--surface-soft); border: 1px solid var(--border); }
.stat-card strong { display: block; color: var(--primary-strong); font-size: 28px; line-height: 1.2; }
.stat-card span { color: var(--muted); font-size: 14px; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.info-card, .category-card, .review-card, .faq-item, .notice-card {
    position: relative; overflow: hidden; padding: 26px; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface); box-shadow: var(--shadow-soft);
}
.info-card::before, .category-card::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 4px; background: var(--gradient); opacity: .75; }
.info-card p, .category-card p, .review-card p, .notice-card p { margin-top: 10px; color: var(--muted); }
.card-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 16px; color: var(--primary-strong); font-weight: 750; }
.card-link::after { content: "→"; transition: transform .2s ease; }
.card-link:hover::after { transform: translateX(4px); }
.media-card { overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-soft); }
.media-card img { width: 100%; height: clamp(220px, 25vw, 350px); object-fit: contain; background: var(--surface-soft); }
.media-card-body { padding: 26px; }
.media-card-body p { margin-top: 10px; color: var(--muted); }
.feature-row { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 28px; align-items: center; }
.feature-row.reverse { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); }
.feature-row.reverse .feature-media { order: 2; }
.feature-media { border-radius: var(--radius-lg); overflow: hidden; background: var(--surface-soft); border: 1px solid var(--border); box-shadow: var(--shadow-soft); }
.feature-media img { width: 100%; height: clamp(260px, 34vw, 460px); object-fit: contain; }
.feature-copy { padding: clamp(10px, 2vw, 30px); }
.feature-copy p { margin-top: 14px; color: var(--muted); }
.feature-copy .card-link { margin-top: 20px; }
.list-check { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 11px; }
.list-check li { position: relative; padding-left: 30px; color: var(--text); }
.list-check li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 21px; height: 21px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--gradient); font-size: 12px; font-weight: 800; }
.content-panel { padding: clamp(28px, 4vw, 52px); }
.split-panel { padding: clamp(28px, 4vw, 52px); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 38px; }
.prose { max-width: 880px; }
.prose p + p { margin-top: 16px; }
.prose p { color: var(--muted); }
.timeline { display: grid; gap: 16px; counter-reset: steps; }
.timeline-item { position: relative; padding: 22px 24px 22px 74px; border-radius: var(--radius-md); background: #fff; border: 1px solid var(--border); }
.timeline-item::before { counter-increment: steps; content: counter(steps); position: absolute; left: 22px; top: 21px; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 12px; color: #fff; background: var(--gradient); font-weight: 800; }
.timeline-item p { margin-top: 6px; color: var(--muted); }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.review-mark { color: var(--primary); font-size: 54px; line-height: .7; font-weight: 900; }
.review-card strong { display: block; margin-top: 18px; color: var(--blue-deep); }
.faq-list { display: grid; gap: 14px; }
.faq-item details { display: block; }
.faq-item summary { cursor: pointer; color: var(--blue-deep); font-weight: 800; font-size: 18px; }
.faq-item p { margin-top: 14px; color: var(--muted); }
.notice-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.notice-card time { display: inline-block; margin-bottom: 8px; color: var(--primary-strong); font-size: 13px; font-weight: 800; }
.compliance-card { padding: clamp(28px, 4vw, 48px); display: grid; grid-template-columns: .75fr 1.25fr; gap: 38px; background: linear-gradient(135deg, #fff, #E8F7FF); }
.compliance-copy p + p { margin-top: 12px; }
.compliance-copy p { color: var(--muted); }
.cta-panel { padding: clamp(34px, 5vw, 64px); border-radius: var(--radius-lg); color: #fff; background: linear-gradient(135deg, #0B67A8, #10AEEA); box-shadow: var(--shadow); display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.cta-panel h2, .cta-panel p { color: #fff; }
.cta-panel p { margin-top: 10px; opacity: .86; }
.cta-panel .main-btn { color: var(--primary-strong); background: #fff; box-shadow: none; }
.site-footer { color: #EAF8FF; background: #073A68; }
.footer-inner { width: var(--container); margin: 0 auto; padding: 58px 0 42px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; }
.footer-brand img { width: 150px; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 460px; margin-top: 18px; color: rgba(234,248,255,.78); }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.footer-links h2 { color: #fff; font-size: 17px; margin-bottom: 12px; }
.footer-links a { display: block; padding: 5px 0; color: rgba(234,248,255,.78); }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(234,248,255,.14); padding: 18px max(16px, calc((100vw - 1360px)/2)); display: flex; justify-content: space-between; gap: 24px; color: rgba(234,248,255,.68); font-size: 13px; }
.mobile-drawer { position: fixed; z-index: 1300; top: 0; right: 0; width: min(88vw, 380px); height: 100dvh; padding: 22px; transform: translateX(105%); transition: transform .24s ease; background: #fff; box-shadow: -20px 0 50px rgba(7,58,104,.18); overflow-y: auto; }
.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(--border); }
.drawer-logo { width: 138px; }
.drawer-close { width: 42px; height: 42px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-soft); color: var(--primary-strong); font-size: 30px; line-height: 1; }
.mobile-nav { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px; margin: 18px 0; }
.mobile-nav a { padding: 12px 13px; border-radius: 12px; color: var(--text); font-weight: 650; white-space: nowrap; }
.drawer-register { width: 100%; }
.drawer-overlay { position: fixed; z-index: 1200; inset: 0; opacity: 0; background: rgba(7,58,104,.45); transition: opacity .22s ease; }
.drawer-overlay.is-visible { opacity: 1; }
@media (max-width: 1179px) {
    .desktop-nav { display: none; }
    .header-inner { min-height: 72px; }
    .brand-logo { width: 136px; }
    .header-actions { margin-left: auto; }
    .menu-toggle { display: flex; }
    .site-main { padding-top: 96px; }
}
@media (max-width: 920px) {
    .page-hero, .intro-panel, .feature-row, .feature-row.reverse, .split-panel, .compliance-card, .footer-inner { grid-template-columns: 1fr; }
    .page-hero { min-height: 0; }
    .page-hero-media { min-height: 220px; }
    .feature-row.reverse .feature-media { order: 0; }
    .card-grid, .card-grid.four, .review-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .cta-panel { align-items: flex-start; flex-direction: column; }
    .footer-inner { gap: 36px; }
}
@media (max-width: 640px) {
    :root { --container: min(100% - 22px, 1360px); --radius-lg: 22px; --radius-md: 17px; }
    .header-inner { width: min(100% - 22px, 1360px); min-height: 66px; gap: 8px; }
    .brand-logo { width: 116px; }
    .header-register { min-height: 40px; padding: 0 16px; }
    .menu-toggle { width: 42px; height: 42px; }
    .site-main { padding-top: 82px; padding-bottom: 54px; }
    .section { margin-top: 50px; }
    h1 { font-size: clamp(32px, 11vw, 48px); }
    h2 { font-size: clamp(26px, 8.5vw, 36px); }
    .carousel-slide img { height: clamp(210px, 58vw, 360px); }
    .carousel-arrow { width: 40px; height: 40px; font-size: 22px; }
    .carousel-prev { left: 10px; }
    .carousel-next { right: 10px; }
    .carousel-dots { bottom: 11px; }
    .page-hero, .intro-panel, .content-panel, .split-panel, .compliance-card { padding: 24px; }
    .page-hero-media img { max-height: 300px; }
    .card-grid, .card-grid.four, .review-grid, .notice-grid, .intro-stats { grid-template-columns: 1fr; }
    .info-card, .category-card, .review-card, .faq-item, .notice-card, .media-card-body { padding: 22px; }
    .footer-links { grid-template-columns: repeat(2, 1fr); }
    .footer-bottom { flex-direction: column; padding: 18px 12px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}