:root {
    --bg: #F4FBFF;
    --nav: #FFFFFF;
    --soft: #E8F7FF;
    --card: #FFFFFF;
    --primary: #10AEEA;
    --deep: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --footer: #073A68;
    --footer-text: #EAF8FF;
    --line: #CDEBF8;
    --shadow: 0 18px 48px rgba(21, 90, 157, .10);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --container: min(1200px, calc(100% - 32px));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.75;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }
.skip-link { position: fixed; top: -80px; left: 16px; z-index: 9999; padding: 10px 16px; background: #fff; color: var(--deep); border-radius: 10px; }
.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(21,90,157,.10);
    backdrop-filter: blur(14px);
}
.header-inner {
    width: var(--container);
    min-height: 74px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 20px;
}
.brand-logo, .drawer-logo { flex: 0 0 auto; }
.brand-logo img { width: 142px; height: 46px; object-fit: contain; }
.desktop-nav { margin-left: auto; display: flex; align-items: center; gap: 4px; white-space: nowrap; }
.desktop-nav a { padding: 10px 9px; border-radius: 11px; color: var(--deep); font-size: 14px; font-weight: 700; transition: .2s ease; }
.desktop-nav a:hover, .desktop-nav a.active { color: var(--primary); background: var(--soft); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.main-btn, .secondary-btn, .text-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    border-radius: 999px;
    font-weight: 800;
    transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn { padding: 0 23px; color: #fff; background: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%); box-shadow: 0 10px 22px rgba(22,136,216,.22); }
.main-btn:hover, .secondary-btn:hover { transform: translateY(-2px); }
.secondary-btn { padding: 0 21px; color: var(--deep); background: #fff; border: 1px solid var(--line); }
.text-link { min-height: auto; justify-content: flex-start; color: var(--deep); border-radius: 0; }
.text-link::after { content: "→"; color: var(--primary); }
.menu-toggle { display: none; width: 46px; height: 46px; padding: 0; border: 0; border-radius: 14px; background: var(--soft); cursor: pointer; }
.menu-toggle span { display: block; width: 22px; height: 2px; margin: 5px auto; background: var(--deep); border-radius: 2px; }
.drawer-backdrop { 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(360px, 88vw); height: 100dvh; padding: 20px; background: #fff; transform: translateX(105%); transition: transform .25s ease; box-shadow: -24px 0 60px rgba(7,58,104,.22); overflow-y: auto; }
.mobile-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.drawer-logo img { width: 138px; height: 44px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: var(--soft); color: var(--deep); font-size: 28px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 18px 0; }
.drawer-nav a { padding: 11px 12px; border-radius: 12px; color: var(--deep); background: #F8FCFF; border: 1px solid transparent; font-weight: 700; }
.drawer-nav a.active { color: var(--primary); border-color: var(--line); background: var(--soft); }
.drawer-register { width: 100%; }
main { min-height: 70vh; }
.container { width: var(--container); margin-inline: auto; }
.section { padding: 76px 0; }
.section.compact { padding: 48px 0; }
.section-soft { background: var(--soft); }
.section-deep { background: linear-gradient(140deg, #0B5A95, #073A68); color: #fff; }
.section-head { max-width: 760px; margin-bottom: 30px; }
.eyebrow { margin: 0 0 8px; color: var(--primary); font-size: 14px; font-weight: 900; letter-spacing: .12em; }
h1, h2, h3 { margin-top: 0; color: var(--deep); line-height: 1.28; }
h1 { font-size: clamp(34px, 5vw, 58px); margin-bottom: 18px; }
h2 { font-size: clamp(27px, 3vw, 40px); margin-bottom: 14px; }
h3 { font-size: 20px; margin-bottom: 9px; }
p { margin-top: 0; }
.lead { max-width: 820px; color: var(--muted); font-size: clamp(17px, 2vw, 20px); }
.page-hero { padding: 76px 0 54px; background: radial-gradient(circle at 85% 18%, rgba(53,215,255,.25), transparent 28%), linear-gradient(180deg, #fff, #F4FBFF); }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); align-items: center; gap: 42px; }
.hero-copy .button-row { margin-top: 26px; }
.hero-visual { padding: 16px; border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow); }
.hero-visual img { width: 100%; max-height: 430px; object-fit: contain; border-radius: 20px; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; }
.carousel { position: relative; width: 100%; background: #DDF4FF; overflow: hidden; }
.carousel-track { display: flex; transition: transform .55s ease; }
.carousel-slide { flex: 0 0 100%; min-width: 0; }
.carousel-slide img { width: 100%; height: clamp(260px, 43vw, 600px); object-fit: contain; background: #DDF4FF; }
.carousel-arrow { position: absolute; top: 50%; z-index: 3; width: 48px; height: 48px; transform: translateY(-50%); border: 1px solid rgba(255,255,255,.65); border-radius: 50%; color: #fff; background: rgba(7,58,104,.48); cursor: pointer; font-size: 24px; }
.carousel-arrow.prev { left: 18px; }
.carousel-arrow.next { right: 18px; }
.carousel-dots { position: absolute; left: 50%; bottom: 18px; z-index: 3; 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,.66); cursor: pointer; }
.carousel-dot.active { width: 26px; border-radius: 999px; background: #fff; }
.intro-panel { margin-top: -1px; background: #fff; }
.intro-grid, .split-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 40px; }
.media-card { padding: 14px; border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow); }
.media-card img { width: 100%; max-height: 480px; object-fit: contain; border-radius: 20px; }
.quick-scroll { display: flex; gap: 12px; padding: 4px 0 14px; overflow-x: auto; scrollbar-width: thin; }
.quick-pill { flex: 0 0 auto; padding: 11px 18px; border: 1px solid var(--line); border-radius: 999px; color: var(--deep); background: #fff; font-weight: 800; }
.quick-pill:hover { color: var(--primary); border-color: #8CDCF6; }
.dashboard-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.dashboard-card, .info-card, .review-card, .faq-item, .safety-card {
    padding: 24px;
    border: 1px solid rgba(21,90,157,.09);
    border-radius: var(--radius-md);
    background: var(--card);
    box-shadow: 0 12px 32px rgba(21,90,157,.07);
}
.dashboard-card .number { display: inline-grid; place-items: center; width: 42px; height: 42px; margin-bottom: 16px; border-radius: 14px; color: var(--deep); background: var(--soft); font-weight: 900; }
.feature-card { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); align-items: center; gap: 38px; padding: 28px; border-radius: 30px; background: #fff; box-shadow: var(--shadow); }
.feature-card.reverse .feature-copy { order: 2; }
.feature-card.reverse .feature-media { order: 1; }
.feature-media img { width: 100%; max-height: 420px; object-fit: contain; border-radius: 22px; background: #F8FCFF; }
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.category-card { overflow: hidden; border-radius: var(--radius-md); background: #fff; box-shadow: var(--shadow); }
.category-card img { width: 100%; aspect-ratio: 16/10; object-fit: contain; background: #F6FBFE; }
.category-card .content { padding: 22px; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.card-grid.two { grid-template-columns: repeat(2, 1fr); }
.app-banner { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 34px; padding: 34px; border: 1px solid #B9E9FA; border-radius: 30px; background: linear-gradient(135deg, #fff, #E8F7FF); box-shadow: var(--shadow); }
.app-banner img { width: 100%; max-height: 390px; object-fit: contain; }
.notice-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.notice-list li { position: relative; padding-left: 28px; color: var(--muted); }
.notice-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--primary); font-weight: 900; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.review-card blockquote { margin: 0 0 14px; color: var(--text); }
.review-card cite { color: var(--deep); font-style: normal; font-weight: 900; }
.faq-list { display: grid; gap: 12px; }
.faq-item summary { cursor: pointer; color: var(--deep); font-weight: 900; }
.faq-item p { margin: 14px 0 0; color: var(--muted); }
.table-wrap { overflow-x: auto; border-radius: var(--radius-md); box-shadow: var(--shadow); }
.info-table { width: 100%; min-width: 720px; border-collapse: collapse; background: #fff; }
.info-table th, .info-table td { padding: 17px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.info-table th { color: var(--deep); background: var(--soft); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: step; }
.step { padding: 24px; border-radius: var(--radius-md); background: #fff; box-shadow: var(--shadow); }
.step::before { counter-increment: step; content: counter(step, decimal-leading-zero); display: block; margin-bottom: 12px; color: var(--primary); font-size: 26px; font-weight: 900; }
.compliance-box { padding: 28px; border-radius: var(--radius-md); color: #EAF8FF; background: #073A68; }
.compliance-box h2, .compliance-box h3 { color: #fff; }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; }
.tag { padding: 8px 13px; border-radius: 999px; color: var(--deep); background: var(--soft); font-weight: 800; }
.site-footer { padding: 58px 0 20px; color: var(--footer-text); background: var(--footer); }
.footer-grid { width: var(--container); margin: 0 auto; display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 32px; }
.footer-brand img { width: 150px; height: 50px; margin-bottom: 18px; object-fit: contain; filter: brightness(0) invert(1); }
.site-footer h2 { color: #fff; font-size: 17px; }
.site-footer a { display: block; margin: 8px 0; color: #D6F2FF; }
.site-footer p { color: #C3E7F5; }
.footer-bottom { width: var(--container); margin: 34px auto 0; padding-top: 18px; border-top: 1px solid rgba(234,248,255,.18); display: flex; justify-content: space-between; gap: 20px; color: #B7DCEC; font-size: 14px; }
.empty-state { padding: 28px; border: 1px dashed #8FD9F3; border-radius: var(--radius-md); background: rgba(255,255,255,.76); }
@media (max-width: 1179px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: block; }
    .header-inner { min-height: 68px; }
    .brand-logo img { width: 132px; }
}
@media (max-width: 900px) {
    .section { padding: 58px 0; }
    .page-hero-grid, .intro-grid, .split-grid, .feature-card, .app-banner { grid-template-columns: 1fr; }
    .feature-card.reverse .feature-copy, .feature-card.reverse .feature-media { order: initial; }
    .dashboard-grid, .card-grid.four { grid-template-columns: repeat(2, 1fr); }
    .category-grid, .card-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
    :root { --container: min(100% - 24px, 1200px); }
    .header-inner { gap: 10px; }
    .main-btn { min-height: 42px; padding-inline: 18px; }
    .carousel-arrow { width: 42px; height: 42px; }
    .carousel-arrow.prev { left: 10px; }
    .carousel-arrow.next { right: 10px; }
    .page-hero { padding-top: 48px; }
    .dashboard-grid, .category-grid, .card-grid, .card-grid.two, .card-grid.four, .review-grid, .steps, .footer-grid { grid-template-columns: 1fr; }
    .feature-card, .app-banner { padding: 20px; border-radius: 22px; }
    .drawer-nav { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; }
}