:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --soft: #E8F7FF;
    --primary: #10AEEA;
    --deep: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --footer: #073A68;
    --line: #CFEAF8;
    --shadow: 0 18px 45px rgba(20, 94, 145, .12);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --container: min(1180px, calc(100% - 32px));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; color: var(--text); background: var(--bg); line-height: 1.75; overflow-x: hidden; }
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; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 9999; padding: 10px 16px; border-radius: 10px; background: var(--footer); color: #fff; transition: top .2s; }
.skip-link:focus { top: 16px; }
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(16,174,234,.12); backdrop-filter: blur(14px); }
.header-inner { width: var(--container); min-height: 78px; margin: 0 auto; display: flex; align-items: center; gap: 22px; }
.brand-logo { flex: 0 0 auto; width: 154px; }
.brand-logo img { width: 154px; max-height: 52px; object-fit: contain; }
.desktop-nav { min-width: 0; margin-left: auto; display: flex; align-items: center; justify-content: flex-end; gap: 2px; white-space: nowrap; }
.desktop-nav a { padding: 10px 11px; border-radius: 999px; color: var(--deep); font-size: 14px; font-weight: 700; transition: .2s ease; }
.desktop-nav a:hover, .desktop-nav a.active { color: #fff; background: linear-gradient(135deg,#35D7FF 0%,#1688D8 100%); }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 24px; border-radius: 999px; color: #fff; background: linear-gradient(135deg,#35D7FF 0%,#1688D8 100%); font-weight: 800; box-shadow: 0 10px 24px rgba(22,136,216,.25); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(22,136,216,.32); }
.text-link { color: var(--deep); font-weight: 800; }
.text-link:hover { color: var(--primary); }
.menu-toggle { display: none; width: 46px; height: 46px; padding: 10px; border: 1px solid var(--line); border-radius: 14px; background: #fff; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; border-radius: 2px; background: var(--deep); }
.mobile-drawer { position: fixed; top: 0; right: 0; z-index: 1200; width: min(390px, 88vw); height: 100dvh; padding: 22px; background: #fff; transform: translateX(105%); transition: transform .28s ease; overflow-y: auto; box-shadow: -20px 0 50px rgba(7,58,104,.18); }
.mobile-drawer.open { transform: translateX(0); }
.drawer-overlay { position: fixed; inset: 0; z-index: 1100; background: rgba(7,58,104,.45); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid var(--line); color: var(--deep); }
.drawer-head strong { font-size: 22px; }
.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: 12px 13px; border-radius: 12px; background: var(--bg); color: var(--deep); font-weight: 700; }
.drawer-nav a.active { color: #fff; background: linear-gradient(135deg,#35D7FF 0%,#1688D8 100%); }
.drawer-register { width: 100%; }
main { display: block; }
.container { width: var(--container); margin: 0 auto; }
.section { padding: 78px 0; }
.section.compact { padding: 54px 0; }
.section.soft { background: var(--soft); }
.section-heading { max-width: 780px; margin-bottom: 30px; }
.eyebrow { display: inline-flex; margin-bottom: 10px; color: var(--primary); font-size: 14px; font-weight: 900; letter-spacing: .08em; }
h1, h2, h3 { margin: 0 0 14px; color: var(--deep); line-height: 1.25; }
h1 { font-size: clamp(34px, 5vw, 62px); }
h2 { font-size: clamp(28px, 3.4vw, 42px); }
h3 { font-size: 21px; }
p { margin: 0 0 16px; }
.lead { font-size: clamp(17px, 2vw, 20px); color: var(--muted); }
.hero-copy { padding: 64px 0 44px; }
.hero-copy .container { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(280px,.75fr); gap: 42px; align-items: center; }
.hero-copy.no-image .container { grid-template-columns: 1fr; }
.hero-copy .hero-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); background: #fff; }
.hero-copy .hero-image img { width: 100%; aspect-ratio: 16/10; object-fit: contain; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 22px; border-radius: 999px; border: 1px solid var(--line); color: var(--deep); background: #fff; font-weight: 800; }
.carousel { position: relative; width: 100%; overflow: hidden; background: #dff4ff; }
.carousel-track { display: flex; transition: transform .48s ease; }
.carousel-slide { flex: 0 0 100%; }
.carousel-slide img { width: 100%; height: clamp(260px, 43vw, 620px); object-fit: contain; background: #eaf9ff; }
.carousel-arrow { position: absolute; top: 50%; z-index: 5; width: 48px; height: 48px; border: 0; border-radius: 50%; background: rgba(255,255,255,.88); color: var(--deep); font-size: 26px; cursor: pointer; transform: translateY(-50%); box-shadow: 0 10px 24px rgba(7,58,104,.18); }
.carousel-arrow.prev { left: 20px; }
.carousel-arrow.next { right: 20px; }
.carousel-dots { position: absolute; left: 50%; bottom: 18px; z-index: 5; 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,.62); cursor: pointer; box-shadow: 0 0 0 1px rgba(7,58,104,.16); }
.carousel-dot.active { width: 28px; border-radius: 99px; background: #fff; }
.pill-scroll { display: flex; gap: 12px; overflow-x: auto; padding: 4px 2px 12px; scrollbar-width: thin; }
.pill-scroll a { flex: 0 0 auto; padding: 12px 18px; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: var(--deep); font-weight: 800; box-shadow: 0 8px 20px rgba(21,90,157,.07); }
.dashboard-grid, .card-grid, .review-grid, .faq-grid, .triple-grid { display: grid; gap: 22px; }
.dashboard-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
.card-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.review-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.faq-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.triple-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.info-card, .review-card, .faq-card, .notice-card { padding: 25px; border: 1px solid rgba(16,174,234,.14); border-radius: var(--radius-md); background: #fff; box-shadow: 0 12px 32px rgba(21,90,157,.08); }
.info-card p, .review-card p, .faq-card p { color: var(--muted); }
.card-index { display: inline-grid; place-items: center; width: 42px; height: 42px; margin-bottom: 18px; border-radius: 14px; color: #fff; background: linear-gradient(135deg,#35D7FF 0%,#1688D8 100%); font-weight: 900; }
.feature-panel { display: grid; grid-template-columns: minmax(0,1.05fr) minmax(320px,.95fr); align-items: center; gap: 40px; padding: 36px; border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow); }
.feature-panel.reverse .feature-media { order: -1; }
.feature-media { overflow: hidden; border-radius: var(--radius-md); background: var(--soft); }
.feature-media img { width: 100%; aspect-ratio: 16/10; object-fit: contain; }
.feature-list { display: grid; gap: 12px; padding: 0; margin: 22px 0; list-style: none; }
.feature-list li { position: relative; padding-left: 26px; color: var(--muted); }
.feature-list li::before { content: ""; position: absolute; left: 0; top: .65em; width: 10px; height: 10px; border-radius: 50%; background: linear-gradient(135deg,#35D7FF,#1688D8); }
.banner { display: grid; grid-template-columns: minmax(0,1.2fr) minmax(280px,.8fr); gap: 36px; align-items: center; padding: 42px; border-radius: var(--radius-lg); background: linear-gradient(135deg,#e8f7ff 0%,#ffffff 48%,#dff6ff 100%); border: 1px solid #cbefff; box-shadow: var(--shadow); }
.banner img { width: 100%; max-height: 360px; object-fit: contain; }
.content-image { border-radius: var(--radius-lg); overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.content-image img { width: 100%; aspect-ratio: 16/10; object-fit: contain; }
.split { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 30px; align-items: start; }
.steps { counter-reset: step; display: grid; gap: 16px; }
.step { position: relative; padding: 22px 22px 22px 72px; border-radius: var(--radius-md); background: #fff; border: 1px solid var(--line); }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 20px; top: 20px; display: grid; place-items: center; width: 36px; height: 36px; border-radius: 12px; color: #fff; background: linear-gradient(135deg,#35D7FF,#1688D8); font-weight: 900; }
.notice-card { border-left: 5px solid var(--primary); }
.notice-card strong { color: var(--deep); }
.review-card .reviewer { display: block; margin-top: 14px; color: var(--deep); font-weight: 800; }
.faq-card details summary { cursor: pointer; color: var(--deep); font-weight: 800; }
.faq-card details p { margin-top: 14px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.table-wrap { overflow-x: auto; border-radius: var(--radius-md); box-shadow: var(--shadow); }
.info-table { width: 100%; min-width: 680px; border-collapse: collapse; background: #fff; }
.info-table th, .info-table td { padding: 17px 18px; text-align: left; border-bottom: 1px solid var(--line); }
.info-table th { color: var(--deep); background: var(--soft); }
.site-footer { padding: 58px 0 22px; color: #EAF8FF; background: var(--footer); }
.footer-grid { width: var(--container); margin: 0 auto; display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 40px; }
.site-footer h2 { color: #fff; font-size: 20px; }
.site-footer p { color: #cdeaf8; }
.footer-links { display: grid; gap: 8px; }
.site-footer a:hover { color: #7ee9ff; }
.footer-bottom { width: var(--container); margin: 36px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.14); display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #b9dcea; }
.footer-bottom div { display: flex; flex-wrap: wrap; gap: 16px; }
@media (max-width: 1179px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: block; }
    .header-inner { min-height: 70px; }
    .brand-logo { width: 140px; }
    .brand-logo img { width: 140px; }
}
@media (max-width: 900px) {
    .hero-copy .container, .feature-panel, .banner, .split { grid-template-columns: 1fr; }
    .feature-panel.reverse .feature-media { order: initial; }
    .dashboard-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .card-grid, .review-grid, .triple-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    :root { --container: min(100% - 24px, 1180px); --radius-lg: 22px; }
    .header-inner { gap: 12px; }
    .brand-logo, .brand-logo img { width: 120px; }
    .header-actions .main-btn { min-height: 40px; padding: 0 18px; }
    .menu-toggle { width: 42px; height: 42px; }
    .section { padding: 58px 0; }
    .hero-copy { padding: 44px 0 32px; }
    .carousel-arrow { width: 40px; height: 40px; font-size: 22px; }
    .carousel-arrow.prev { left: 10px; }
    .carousel-arrow.next { right: 10px; }
    .dashboard-grid, .card-grid, .review-grid, .faq-grid, .triple-grid, .footer-grid { grid-template-columns: 1fr; }
    .feature-panel, .banner { padding: 24px; }
    .footer-bottom { align-items: flex-start; flex-direction: column; }
    .drawer-nav { grid-template-columns: 1fr; }
}