:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --soft: #E8F7FF;
    --primary: #10AEEA;
    --primary-strong: #1688D8;
    --deep: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --border: rgba(16,174,234,0.18);
    --footer: #073A68;
    --shadow: 0 18px 48px rgba(18, 113, 171, 0.12);
    --radius: 22px;
    --header-h: 78px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 0; padding-top: var(--header-h); overflow-x: hidden; background: var(--bg); color: var(--text); font-family: "Microsoft YaHei", "PingFang SC", 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; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 9999; padding: 10px 16px; border-radius: 10px; background: var(--deep); color: #fff; transition: top .2s ease; }
.skip-link:focus { top: 12px; }
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--header-h); background: rgba(255,255,255,.96); border-bottom: 1px solid var(--border); backdrop-filter: blur(16px); }
.header-inner { width: min(100% - 32px, 1360px); height: 100%; margin: 0 auto; display: flex; align-items: center; gap: clamp(12px, 1.4vw, 24px); }
.brand-logo { flex: 0 0 auto; display: flex; align-items: center; min-width: 112px; max-width: 158px; }
.brand-logo img { width: clamp(112px, 10vw, 158px); max-height: 50px; object-fit: contain; }
.desktop-nav { flex: 1; min-width: 0; display: flex; align-items: center; justify-content: center; gap: clamp(5px, .72vw, 13px); }
.desktop-nav a { white-space: nowrap; flex: 0 1 auto; min-width: 0; padding: 9px clamp(3px, .35vw, 8px); color: var(--text); font-size: clamp(12px, .86vw, 15px); font-weight: 700; border-radius: 999px; transition: .2s ease; }
.desktop-nav a:hover, .desktop-nav a.is-active { color: var(--primary-strong); background: var(--soft); }
.header-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
.main-btn, .outline-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 22px; border: 0; border-radius: 999px; font-weight: 800; white-space: nowrap; 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); }
.main-btn:hover, .outline-btn:hover { transform: translateY(-2px); }
.outline-btn { color: var(--primary-strong); background: #fff; border: 1px solid var(--border); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 1px solid var(--border); 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; inset: 0 0 0 auto; z-index: 1200; width: min(88vw, 380px); padding: 20px; background: #fff; transform: translateX(105%); transition: transform .28s ease; overflow-y: auto; box-shadow: -20px 0 50px rgba(8, 65, 107, .2); }
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-backdrop { position: fixed; inset: 0; z-index: 1100; background: rgba(7,58,104,.42); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 14px; border-bottom: 1px solid var(--border); color: var(--deep); font-size: 22px; }
.drawer-close { width: 40px; height: 40px; border: 0; border-radius: 50%; background: var(--soft); color: var(--deep); font-size: 28px; cursor: pointer; }
.mobile-drawer nav { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; padding: 18px 0; }
.mobile-drawer nav a { padding: 11px 12px; border-radius: 12px; background: var(--bg); color: var(--text); font-weight: 700; }
.mobile-drawer nav a.is-active { background: var(--soft); color: var(--primary-strong); }
.drawer-register { width: 100%; }
main { min-height: 60vh; }
.section-shell { width: min(100% - 32px, 1180px); margin: 0 auto; }
.content-section { padding: clamp(54px, 7vw, 96px) 0 0; }
.soft-section { width: min(100% - 32px, 1220px); margin-top: clamp(54px, 7vw, 96px); padding: clamp(32px, 5vw, 58px); border-radius: 32px; background: linear-gradient(145deg, rgba(232,247,255,.96), rgba(255,255,255,.98)); border: 1px solid var(--border); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 10px; color: var(--primary-strong); font-size: 14px; font-weight: 800; letter-spacing: .08em; }
.eyebrow::before { content: ''; width: 24px; height: 3px; border-radius: 3px; background: linear-gradient(90deg, #35D7FF, #1688D8); }
h1, h2, h3 { margin-top: 0; color: var(--deep); line-height: 1.3; }
h1 { margin-bottom: 18px; font-size: clamp(34px, 5.2vw, 64px); letter-spacing: -.03em; }
h2 { margin-bottom: 14px; font-size: clamp(28px, 3.3vw, 42px); }
h3 { margin-bottom: 10px; font-size: clamp(19px, 2vw, 24px); }
p { margin: 0 0 1em; }
.lead { max-width: 760px; color: var(--muted); font-size: clamp(17px, 1.7vw, 21px); }
.page-hero { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(320px,.92fr); gap: clamp(30px, 5vw, 72px); align-items: center; padding-top: clamp(58px, 7vw, 94px); }
.page-hero__copy { min-width: 0; }
.page-hero__media { margin: 0; border-radius: 28px; overflow: hidden; background: #fff; box-shadow: var(--shadow); border: 1px solid var(--border); }
.page-hero__media img { width: 100%; aspect-ratio: 16 / 10; object-fit: contain; background: #fff; }
.hero-actions { display: flex; align-items: center; gap: 18px; margin-top: 28px; }
.text-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary-strong); font-weight: 800; }
.text-link::after { content: '→'; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.section-heading { max-width: 760px; margin-bottom: 28px; }
.section-heading > p { color: var(--muted); font-size: 17px; }
.prose-card { padding: clamp(24px, 4vw, 42px); border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: 0 12px 36px rgba(18,113,171,.08); }
.prose-card p:last-child { margin-bottom: 0; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; }
.info-card { min-width: 0; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; overflow: hidden; box-shadow: 0 12px 34px rgba(18,113,171,.08); transition: transform .22s ease, box-shadow .22s ease; }
.info-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.card-media { margin: 0; padding: 16px 16px 0; }
.card-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: contain; border-radius: 16px; background: var(--soft); }
.card-body { padding: 22px; }
.card-body p { color: var(--muted); }
.step-list { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; margin: 0; padding: 0; list-style: none; }
.step-list li { display: flex; gap: 16px; padding: 22px; border-radius: 18px; background: rgba(255,255,255,.9); border: 1px solid var(--border); }
.step-list li > span { flex: 0 0 auto; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; background: linear-gradient(135deg, #35D7FF, #1688D8); color: #fff; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
.review-card { margin: 0; padding: 26px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: 0 12px 34px rgba(18,113,171,.08); }
.review-card p { color: var(--text); font-size: 16px; }
.review-card footer { color: var(--primary-strong); font-weight: 800; }
.notice-panel { margin-top: clamp(54px, 7vw, 96px); margin-bottom: clamp(54px, 7vw, 96px); padding: clamp(28px, 5vw, 46px); display: flex; align-items: center; justify-content: space-between; gap: 24px; border-radius: 28px; color: #fff; background: linear-gradient(135deg, #0D79BD, #073A68); box-shadow: var(--shadow); }
.notice-panel h2 { color: #fff; }
.notice-panel p { max-width: 850px; margin: 0; color: #EAF8FF; }
.notice-panel .eyebrow { color: #DFF7FF; }
.faq-list { display: grid; gap: 14px; }
.faq-list details { border: 1px solid var(--border); border-radius: 16px; background: #fff; overflow: hidden; }
.faq-list summary { padding: 20px 22px; cursor: pointer; color: var(--deep); font-weight: 800; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: '+'; float: right; color: var(--primary-strong); font-size: 24px; line-height: 1; }
.faq-list details[open] summary::after { content: '−'; }
.faq-list details p { padding: 0 22px 22px; margin: 0; color: var(--muted); }
.site-footer { margin-top: 0; padding: 60px 0 22px; background: var(--footer); color: #EAF8FF; }
.footer-inner { width: min(100% - 32px, 1180px); margin: 0 auto; display: grid; grid-template-columns: 1.1fr 1.9fr; gap: 50px; }
.footer-brand strong { display: block; margin-bottom: 14px; color: #fff; font-size: 28px; }
.footer-brand p { max-width: 460px; color: rgba(234,248,255,.78); }
.footer-links { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 28px; }
.footer-links h2 { margin-bottom: 14px; color: #fff; font-size: 17px; }
.footer-links a { display: block; padding: 5px 0; color: rgba(234,248,255,.76); }
.footer-links a:hover { color: #fff; }
.footer-notice { width: min(100% - 32px, 1180px); margin: 42px auto 0; padding-top: 20px; border-top: 1px solid rgba(234,248,255,.16); color: rgba(234,248,255,.68); font-size: 13px; }
.footer-notice p:last-child { margin-bottom: 0; }
.home-carousel-wrap { width: min(100% - 32px, 1360px); margin: clamp(24px, 3.5vw, 48px) auto 0; }
.carousel { position: relative; border-radius: 28px; overflow: hidden; background: var(--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 { flex: 0 0 100%; min-width: 0; }
.carousel-slide img { width: 100%; aspect-ratio: 21 / 8; object-fit: contain; background: var(--soft); }
.carousel-arrow { position: absolute; top: 50%; z-index: 3; transform: translateY(-50%); width: 46px; height: 46px; border: 0; border-radius: 50%; background: rgba(255,255,255,.88); color: var(--deep); font-size: 28px; cursor: pointer; box-shadow: 0 8px 22px rgba(7,58,104,.16); }
.carousel-arrow.prev { left: 18px; }
.carousel-arrow.next { right: 18px; }
.carousel-dots { position: absolute; left: 50%; bottom: 16px; z-index: 3; 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 1px 8px rgba(7,58,104,.22); cursor: pointer; }
.carousel-dot.is-active { width: 30px; border-radius: 999px; background: #fff; }
.home-intro { padding-top: clamp(48px, 6vw, 80px); }
.home-intro-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; }
.home-intro-copy, .home-entry-card { padding: clamp(28px, 4vw, 46px); border-radius: 26px; background: #fff; border: 1px solid var(--border); box-shadow: 0 12px 36px rgba(18,113,171,.08); }
.home-entry-card { background: linear-gradient(145deg, #E8F7FF, #fff); }
.quick-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.quick-card { padding: 22px; border: 1px solid var(--border); border-radius: 18px; background: #fff; }
.quick-card p { color: var(--muted); font-size: 14px; }
.split-section { display: grid; grid-template-columns: minmax(0,1fr) minmax(300px,.82fr); gap: 28px; align-items: center; padding: clamp(28px, 5vw, 48px); border-radius: 28px; background: #fff; border: 1px solid var(--border); box-shadow: 0 12px 36px rgba(18,113,171,.08); }
.split-section.reverse .split-media { order: -1; }
.split-media { margin: 0; }
.split-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: contain; border-radius: 18px; background: var(--soft); }
.feature-list { display: grid; gap: 10px; padding: 0; margin: 20px 0 0; list-style: none; }
.feature-list li { position: relative; padding-left: 24px; color: var(--muted); }
.feature-list li::before { content: '✓'; position: absolute; left: 0; color: var(--primary-strong); font-weight: 900; }
.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.stat-card { padding: 24px; border: 1px solid var(--border); border-radius: 18px; background: #fff; }
.stat-card strong { display: block; margin-bottom: 8px; color: var(--primary-strong); font-size: 25px; }
.stat-card p { margin: 0; color: var(--muted); }
@media (max-width: 1179px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: block; }
    .header-inner { justify-content: space-between; }
}
@media (max-width: 900px) {
    .page-hero, .home-intro-grid, .split-section, .footer-inner { grid-template-columns: 1fr; }
    .page-hero__media { max-width: 680px; }
    .card-grid, .review-grid, .step-list { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .quick-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
    .split-section.reverse .split-media { order: initial; }
    .footer-links { grid-template-columns: repeat(3, minmax(0,1fr)); }
}
@media (max-width: 640px) {
    :root { --header-h: 68px; }
    .header-inner, .section-shell, .home-carousel-wrap, .footer-inner, .footer-notice { width: min(100% - 24px, 1180px); }
    .brand-logo { min-width: 96px; }
    .brand-logo img { width: 105px; max-height: 42px; }
    .header-actions .main-btn { min-height: 40px; padding: 0 16px; }
    .menu-toggle { width: 40px; height: 40px; }
    .page-hero { padding-top: 42px; }
    .hero-actions { flex-wrap: wrap; }
    .card-grid, .review-grid, .step-list, .quick-grid, .stats-grid, .footer-links { grid-template-columns: 1fr; }
    .soft-section { width: min(100% - 24px, 1220px); padding: 24px; border-radius: 24px; }
    .notice-panel { flex-direction: column; align-items: flex-start; }
    .carousel { border-radius: 20px; }
    .carousel-slide img { aspect-ratio: 16 / 8.8; }
    .carousel-arrow { width: 38px; height: 38px; font-size: 23px; }
    .carousel-arrow.prev { left: 10px; }
    .carousel-arrow.next { right: 10px; }
    .carousel-dots { bottom: 10px; }
    .mobile-drawer nav { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}