:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --soft: #E8F7FF;
    --primary: #11AEEA;
    --accent: #1688D8;
    --deep: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --border: rgba(17, 174, 234, 0.18);
    --footer: #073A68;
    --footer-text: #EAF8FF;
    --shadow: 0 18px 45px rgba(21, 90, 157, 0.12);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --header-height: 78px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 0;
    overflow-x: hidden;
    padding-top: var(--header-height);
    color: var(--text);
    background: var(--bg);
    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, select { font: inherit; }
button { cursor: pointer; }
.container { width: min(100% - 32px, 1180px); margin-inline: auto; }
.section { padding: clamp(58px, 8vw, 100px) 0; }
.section-soft { background: var(--soft); }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading.center { margin-inline: auto; text-align: center; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: .08em;
}
.eyebrow::before { content: ""; width: 22px; height: 3px; border-radius: 99px; background: var(--primary); }
h1, h2, h3 { margin-top: 0; color: var(--deep); line-height: 1.28; }
h1 { margin-bottom: 18px; font-size: clamp(34px, 5vw, 62px); }
h2 { margin-bottom: 14px; font-size: clamp(27px, 3.2vw, 42px); }
h3 { margin-bottom: 10px; font-size: clamp(19px, 2vw, 24px); }
p { margin-top: 0; }
.lead { max-width: 780px; color: var(--muted); font-size: clamp(17px, 2vw, 20px); }
.text-link { color: var(--accent); font-weight: 800; }
.text-link:hover { color: var(--primary); }
.main-btn, .secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 20px;
    border: 0;
    border-radius: 999px;
    white-space: nowrap;
    font-weight: 800;
    transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn { color: #fff; background: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%); box-shadow: 0 10px 24px rgba(22, 136, 216, .24); }
.secondary-btn { color: var(--accent); background: var(--surface); border: 1px solid var(--border); }
.main-btn:hover, .secondary-btn:hover { transform: translateY(-2px); }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(255,255,255,.94);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
}
.header-inner {
    width: min(100% - 32px, 1360px);
    height: 100%;
    margin-inline: auto;
    display: flex;
    align-items: center;
    gap: clamp(12px, 2vw, 28px);
    min-width: 0;
}
.brand-logo { flex: 0 0 auto; display: flex; align-items: center; }
.brand-logo img { width: clamp(112px, 10vw, 148px); max-height: 48px; object-fit: contain; }
.desktop-nav {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(6px, .85vw, 15px);
    white-space: nowrap;
}
.desktop-nav a {
    position: relative;
    padding: 12px clamp(2px, .3vw, 5px);
    color: var(--text);
    font-size: clamp(12px, .98vw, 14px);
    font-weight: 700;
}
.desktop-nav a::after {
    content: "";
    position: absolute;
    left: 50%; right: 50%; bottom: 5px;
    height: 2px;
    border-radius: 99px;
    background: var(--primary);
    transition: left .2s ease, right .2s ease;
}
.desktop-nav a:hover, .desktop-nav a.active { color: var(--accent); }
.desktop-nav a:hover::after, .desktop-nav a.active::after { left: 8px; right: 8px; }
.header-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--soft);
}
.menu-toggle span { display: block; height: 2px; margin: 5px 0; border-radius: 99px; background: var(--deep); }
.drawer-overlay { position: fixed; inset: 0; z-index: 1090; opacity: 0; visibility: hidden; background: rgba(7, 58, 104, .45); transition: .25s ease; }
.mobile-drawer {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    z-index: 1100;
    width: min(88vw, 390px);
    padding: 20px;
    overflow-y: auto;
    transform: translateX(105%);
    background: #fff;
    box-shadow: -24px 0 60px rgba(7, 58, 104, .2);
    transition: transform .25s ease;
}
.drawer-open .drawer-overlay { opacity: 1; visibility: visible; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.drawer-logo img { width: 132px; max-height: 46px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; color: var(--deep); background: var(--soft); font-size: 28px; line-height: 1; }
.mobile-nav { display: grid; gap: 4px; padding: 18px 0; }
.mobile-nav a { padding: 11px 12px; border-radius: 12px; color: var(--text); font-weight: 700; }
.mobile-nav a:hover { color: var(--accent); background: var(--soft); }
.drawer-register { width: 100%; }

.carousel-section { padding: 22px 0 0; }
.carousel {
    position: relative;
    width: min(100% - 32px, 1360px);
    margin-inline: auto;
    overflow: hidden;
    aspect-ratio: 16 / 6.6;
    min-height: 280px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--soft);
    box-shadow: var(--shadow);
}
.carousel-track, .carousel-slide { position: absolute; inset: 0; }
.carousel-slide { opacity: 0; visibility: hidden; transition: opacity .45s ease; }
.carousel-slide.is-active { opacity: 1; visibility: visible; }
.carousel-slide img { width: 100%; height: 100%; object-fit: contain; }
.carousel-arrow {
    position: absolute;
    top: 50%;
    z-index: 2;
    width: 46px;
    height: 46px;
    border: 0;
    border-radius: 50%;
    transform: translateY(-50%);
    color: var(--deep);
    background: rgba(255,255,255,.88);
    box-shadow: 0 8px 22px rgba(21, 90, 157, .18);
    font-size: 27px;
}
.carousel-arrow.prev { left: 18px; }
.carousel-arrow.next { right: 18px; }
.carousel-dots { position: absolute; left: 50%; bottom: 17px; z-index: 2; display: flex; gap: 8px; transform: translateX(-50%); }
.carousel-dot { width: 10px; height: 10px; padding: 0; border: 0; border-radius: 99px; background: rgba(255,255,255,.7); box-shadow: 0 0 0 1px rgba(21,90,157,.18); transition: width .2s ease, background .2s ease; }
.carousel-dot.is-active { width: 28px; background: var(--primary); }

.hero { position: relative; overflow: hidden; padding: clamp(70px, 9vw, 118px) 0; background: linear-gradient(145deg, #F4FBFF 15%, #E8F7FF 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.hero::before { width: 320px; height: 320px; right: -110px; top: -120px; background: rgba(53, 215, 255, .17); }
.hero::after { width: 220px; height: 220px; left: -90px; bottom: -130px; background: rgba(22, 136, 216, .12); }
.hero .container { position: relative; z-index: 1; }
.hero-kicker { display: inline-flex; margin-bottom: 16px; padding: 7px 14px; border-radius: 999px; color: var(--accent); background: #fff; border: 1px solid var(--border); font-size: 14px; font-weight: 800; }
.hero-panel { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: clamp(28px, 5vw, 70px); align-items: center; }
.hero-media, .feature-media { overflow: hidden; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.hero-media img, .feature-media img { width: 100%; height: 100%; max-height: 480px; object-fit: contain; }

.intro-panel, .compliance-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, .8fr);
    gap: clamp(30px, 5vw, 70px);
    align-items: center;
    padding: clamp(28px, 5vw, 54px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow);
}
.quick-grid, .card-grid, .review-grid, .stat-grid, .faq-grid { display: grid; gap: 20px; }
.quick-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.card-grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid.cols-3, .review-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.quick-card, .info-card, .review-card, .faq-card, .notice-card, .stat-card {
    min-width: 0;
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: #fff;
    box-shadow: 0 14px 34px rgba(21, 90, 157, .08);
}
.quick-card { display: flex; flex-direction: column; min-height: 250px; }
.quick-card .quick-index { width: 42px; height: 42px; display: grid; place-items: center; margin-bottom: 18px; border-radius: 14px; color: #fff; background: linear-gradient(135deg, #35D7FF, #1688D8); font-weight: 800; }
.quick-card p, .info-card p, .review-card p, .faq-card p { color: var(--muted); }
.quick-card .text-link { margin-top: auto; }
.info-card.featured { background: linear-gradient(145deg, #fff, #E8F7FF); }
.card-icon { width: 48px; height: 48px; display: grid; place-items: center; margin-bottom: 18px; border-radius: 16px; color: var(--accent); background: var(--soft); font-size: 22px; font-weight: 800; }
.feature-split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(28px, 5vw, 64px); align-items: center; }
.feature-split.reverse .feature-media { order: 2; }
.feature-copy p { color: var(--muted); }
.meta-list, .check-list { margin: 22px 0 0; padding: 0; list-style: none; }
.meta-list li, .check-list li { position: relative; margin: 10px 0; padding-left: 28px; color: var(--text); }
.meta-list li::before, .check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--primary); font-weight: 900; }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.tag { padding: 7px 12px; border-radius: 999px; color: var(--deep); background: var(--soft); border: 1px solid var(--border); font-size: 14px; font-weight: 700; }
.review-card { position: relative; }
.review-mark { color: rgba(17,174,234,.32); font-family: Georgia, serif; font-size: 52px; line-height: .8; }
.review-card strong { display: inline-block; margin-top: 8px; color: var(--deep); }
.stat-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat-card strong { display: block; margin-bottom: 6px; color: var(--primary); font-size: clamp(30px, 4vw, 46px); line-height: 1; }
.stat-card span { color: var(--muted); }
.notice-card { border-left: 5px solid var(--primary); }
.faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.faq-card h3 { font-size: 20px; }
.cta-panel { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: clamp(28px, 5vw, 48px); border-radius: var(--radius-lg); color: #fff; background: linear-gradient(135deg, #11AEEA, #155A9D); box-shadow: var(--shadow); }
.cta-panel h2, .cta-panel p { color: #fff; }
.cta-panel p { margin-bottom: 0; opacity: .88; }
.cta-panel .secondary-btn { flex: 0 0 auto; }
.compliance-section { padding-top: 0; }
.compliance-panel { background: linear-gradient(145deg, #fff, #E8F7FF); }

.site-footer { padding: 62px 0 24px; color: var(--footer-text); background: var(--footer); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, minmax(130px, .65fr)); gap: 34px; }
.footer-logo { display: inline-flex; margin-bottom: 18px; padding: 9px 13px; border-radius: 14px; background: #fff; }
.footer-logo img { width: 132px; max-height: 44px; object-fit: contain; }
.footer-brand p { max-width: 440px; color: rgba(234,248,255,.78); }
.site-footer h3 { color: #fff; font-size: 18px; }
.site-footer a:not(.footer-logo) { display: block; margin: 7px 0; color: rgba(234,248,255,.8); }
.site-footer a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 42px; padding-top: 22px; border-top: 1px solid rgba(234,248,255,.16); color: rgba(234,248,255,.7); font-size: 14px; }
.footer-bottom p { margin: 0; }

@media (max-width: 1180px) {
    .desktop-nav { display: none; }
    .header-inner { justify-content: space-between; }
    .menu-toggle { display: block; }
}
@media (max-width: 980px) {
    .quick-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .card-grid.cols-4, .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .card-grid.cols-3, .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .hero-panel, .intro-panel, .compliance-panel, .feature-split { grid-template-columns: 1fr; }
    .feature-split.reverse .feature-media { order: 0; }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
    :root { --header-height: 68px; }
    .header-inner { width: min(100% - 20px, 1360px); }
    .header-actions .main-btn { min-height: 40px; padding: 0 16px; }
    .carousel-section { padding-top: 12px; }
    .carousel { width: min(100% - 20px, 1360px); min-height: 210px; aspect-ratio: 16 / 9; border-radius: 20px; }
    .carousel-arrow { width: 40px; height: 40px; font-size: 23px; }
    .carousel-arrow.prev { left: 10px; }
    .carousel-arrow.next { right: 10px; }
    .carousel-dots { bottom: 10px; }
    .section { padding: 58px 0; }
    .quick-grid, .card-grid.cols-2, .card-grid.cols-3, .card-grid.cols-4, .review-grid, .stat-grid, .faq-grid { grid-template-columns: 1fr; }
    .quick-card { min-height: 0; }
    .cta-panel { align-items: flex-start; flex-direction: column; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; }
}
@media (max-width: 420px) {
    .brand-logo img { width: 102px; }
    .header-actions { gap: 7px; }
    .header-actions .main-btn { padding: 0 13px; }
    .menu-toggle { width: 40px; height: 40px; padding: 8px; }
    .carousel { min-height: 188px; }
    .quick-card, .info-card, .review-card, .faq-card, .notice-card, .stat-card { padding: 21px; }
}