: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 45px rgba(21, 90, 157, 0.10);
  --radius: 22px;
  --header-height: 78px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; 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; padding-top: var(--header-height); }
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font: inherit; }
.container { width: min(100% - 32px, 1180px); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 2000; background: #fff; color: var(--deep); padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.site-header { position: fixed; inset: 0 0 auto; z-index: 1000; height: var(--header-height); background: rgba(255,255,255,.96); border-bottom: 1px solid var(--border); backdrop-filter: blur(14px); }
.header-inner { width: min(100% - 32px, 1360px); height: 100%; margin-inline: auto; display: flex; align-items: center; gap: clamp(12px, 1.6vw, 24px); }
.brand-logo { flex: 0 0 auto; display: inline-flex; align-items: center; }
.brand-logo img { width: clamp(128px, 12vw, 176px); max-height: 52px; object-fit: contain; }
.desktop-nav { flex: 1; min-width: 0; display: flex; justify-content: center; align-items: center; gap: clamp(7px, .8vw, 15px); white-space: nowrap; }
.desktop-nav a { color: var(--deep); font-size: clamp(12px, .85vw, 14px); font-weight: 700; padding: 8px 0; position: relative; }
.desktop-nav a::after { content: ""; position: absolute; left: 50%; right: 50%; bottom: 2px; height: 2px; border-radius: 2px; background: var(--primary); transition: .2s ease; }
.desktop-nav a:hover::after, .desktop-nav a.active::after { left: 0; right: 0; }
.desktop-nav a.active { color: var(--primary-strong); }
.header-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 22px; border: 0; border-radius: 999px; color: #fff; font-weight: 800; background: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%); box-shadow: 0 10px 24px rgba(22,136,216,.22); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(22,136,216,.28); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--border); background: #fff; border-radius: 13px; padding: 10px; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--deep); border-radius: 2px; }
.drawer-overlay { position: fixed; inset: 0; z-index: 1190; background: rgba(7,58,104,.34); opacity: 0; transition: opacity .22s ease; }
.drawer-overlay.show { opacity: 1; }
.mobile-drawer { position: fixed; z-index: 1200; top: 0; right: 0; width: min(88vw, 380px); height: 100dvh; overflow-y: auto; background: #fff; box-shadow: -20px 0 50px rgba(7,58,104,.18); transform: translateX(105%); transition: transform .24s ease; padding: 22px; }
.mobile-drawer.open { 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-head img { width: 150px; max-height: 48px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 12px; 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: 8px; padding: 18px 0; }
.mobile-drawer nav a { padding: 11px 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; color: var(--deep); font-weight: 700; }
.drawer-register { width: 100%; }
.section { padding: clamp(46px, 6vw, 82px) 0; }
.soft-section { background: linear-gradient(180deg, rgba(232,247,255,.75), rgba(244,251,255,.25)); }
.section-heading { max-width: 760px; margin-bottom: 28px; }
.section-heading h2, .media-copy h2 { margin: 0 0 12px; color: var(--deep); font-size: clamp(28px, 4vw, 44px); line-height: 1.2; }
.section-heading p, .media-copy p { color: var(--muted); margin: 0 0 14px; }
.eyebrow { margin: 0 0 10px; color: var(--primary-strong); font-weight: 800; letter-spacing: .08em; }
.page-hero { padding-top: clamp(38px, 5vw, 66px); background: radial-gradient(circle at 85% 20%, rgba(53,215,255,.18), transparent 32%), linear-gradient(180deg, #fff, var(--bg)); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); align-items: center; gap: clamp(28px, 5vw, 70px); }
.hero-copy h1 { margin: 0 0 20px; color: var(--deep); font-size: clamp(38px, 6vw, 68px); line-height: 1.12; letter-spacing: -.02em; }
.hero-lead { max-width: 720px; margin: 0; color: var(--muted); font-size: clamp(17px, 2vw, 21px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.text-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 9px 20px; border: 1px solid var(--border); border-radius: 999px; color: var(--deep); font-weight: 800; background: #fff; }
.hero-media, .content-media { margin: 0; padding: 16px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.hero-media img, .content-media img { width: 100%; max-height: 470px; object-fit: contain; border-radius: calc(var(--radius) - 9px); }
.breadcrumb { width: min(100% - 32px, 1180px); margin: 20px auto 0; display: flex; gap: 8px; color: var(--muted); font-size: 14px; }
.breadcrumb a { color: var(--primary-strong); font-weight: 700; }
.home-slider-section { padding: 26px 0 18px; }
.home-slider { position: relative; min-height: 240px; overflow: hidden; border-radius: 26px; background: var(--soft); border: 1px solid var(--border); box-shadow: var(--shadow); aspect-ratio: 16 / 6.2; }
.slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .55s ease; }
.slide.active { opacity: 1; visibility: visible; }
.slide img { width: 100%; height: 100%; object-fit: contain; }
.slider-arrow { position: absolute; z-index: 5; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border: 1px solid rgba(255,255,255,.55); border-radius: 50%; background: rgba(7,58,104,.56); color: #fff; font-size: 26px; cursor: pointer; backdrop-filter: blur(8px); }
.slider-prev { left: 18px; } .slider-next { right: 18px; }
.slider-dots { position: absolute; z-index: 6; left: 50%; bottom: 16px; transform: translateX(-50%); display: flex; gap: 9px; }
.slider-dot { width: 10px; height: 10px; padding: 0; border: 1px solid rgba(255,255,255,.9); border-radius: 50%; background: rgba(7,58,104,.35); cursor: pointer; }
.slider-dot.active { width: 28px; border-radius: 99px; background: #fff; }
.home-intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: stretch; }
.intro-panel, .entry-panel, .prose-card, .compliance-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: clamp(24px, 4vw, 42px); }
.intro-panel h1 { margin: 0 0 16px; color: var(--deep); font-size: clamp(36px, 5vw, 60px); line-height: 1.15; }
.intro-panel p, .entry-panel p, .prose-card p, .compliance-card p { margin: 0 0 14px; color: var(--muted); }
.entry-panel h2 { margin: 0 0 12px; color: var(--deep); }
.quick-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.quick-card, .feature-card { min-width: 0; background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 22px; box-shadow: 0 12px 30px rgba(21,90,157,.07); transition: transform .2s ease, border-color .2s ease; }
.quick-card:hover, .feature-card:hover { transform: translateY(-4px); border-color: rgba(16,174,234,.42); }
.quick-card h3, .feature-card h3 { margin: 0 0 10px; color: var(--deep); font-size: 20px; }
.quick-card p, .feature-card p { margin: 0 0 12px; color: var(--muted); }
.card-link { color: var(--primary-strong); font-weight: 800; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.mini-tag { display: inline-flex; margin-bottom: 12px; padding: 4px 10px; border-radius: 999px; background: var(--soft); color: var(--primary-strong); font-size: 13px; font-weight: 800; }
.media-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(26px, 5vw, 64px); }
.media-grid.reverse .media-copy { order: 2; } .media-grid.reverse .content-media { order: 1; }
.media-copy h3 { color: var(--deep); }
.media-copy .main-btn { margin-top: 10px; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; counter-reset: item; }
.steps li { display: flex; gap: 16px; padding: 22px; border-radius: 18px; background: #fff; border: 1px solid var(--border); }
.steps li > span { flex: 0 0 42px; width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; background: linear-gradient(135deg, #35D7FF, #1688D8); color: #fff; font-weight: 900; }
.steps h3 { margin: 0 0 7px; color: var(--deep); } .steps p { margin: 0; color: var(--muted); }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.review-card { margin: 0; padding: 24px; background: #fff; border: 1px solid var(--border); border-radius: 18px; box-shadow: 0 12px 30px rgba(21,90,157,.07); }
.review-card p { margin: 0 0 14px; color: var(--text); }
.review-card footer { color: var(--primary-strong); font-weight: 800; }
.faq-list { display: grid; gap: 12px; }
.faq-list details { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 0 20px; }
.faq-list summary { cursor: pointer; padding: 18px 32px 18px 0; color: var(--deep); font-weight: 800; position: relative; }
.faq-list summary::after { content: "+"; position: absolute; right: 0; top: 14px; font-size: 24px; color: var(--primary-strong); }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: 0; padding: 0 0 20px; color: var(--muted); }
.compliance-card { border-left: 5px solid var(--primary); }
.compliance-card h2 { margin: 0 0 12px; color: var(--deep); }
.notice-list { margin: 0; padding-left: 20px; color: var(--muted); }
.site-footer { background: var(--footer); color: #EAF8FF; padding: 58px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 34px; }
.footer-brand img { width: 176px; max-height: 52px; object-fit: contain; margin-bottom: 16px; }
.site-footer h2 { margin: 0 0 14px; font-size: 18px; color: #fff; }
.site-footer p { color: rgba(234,248,255,.78); margin: 0 0 10px; }
.site-footer a { display: block; color: rgba(234,248,255,.86); margin: 8px 0; }
.site-footer a:hover { color: #fff; }
.footer-bottom { margin-top: 36px; padding: 20px 0; border-top: 1px solid rgba(234,248,255,.15); text-align: center; }
.footer-bottom p { margin: 0; font-size: 14px; }
@media (max-width: 1180px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
  .header-inner { justify-content: space-between; }
}
@media (max-width: 920px) {
  .hero-grid, .home-intro, .media-grid { grid-template-columns: 1fr; }
  .media-grid.reverse .media-copy, .media-grid.reverse .content-media { order: initial; }
  .quick-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .feature-grid, .review-grid, .steps { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .home-slider { aspect-ratio: 16 / 8; }
}
@media (max-width: 640px) {
  :root { --header-height: 68px; }
  .container, .header-inner { width: min(100% - 24px, 1180px); }
  .header-register { padding-inline: 16px; min-height: 40px; }
  .brand-logo img { width: 126px; }
  .menu-toggle { width: 40px; height: 40px; }
  .section { padding: 42px 0; }
  .home-slider-section { padding-top: 14px; }
  .home-slider { min-height: 210px; aspect-ratio: 4 / 3; border-radius: 18px; }
  .slider-arrow { width: 40px; height: 40px; font-size: 22px; }
  .slider-prev { left: 10px; } .slider-next { right: 10px; }
  .quick-grid, .feature-grid, .review-grid, .steps, .footer-grid { grid-template-columns: 1fr; }
  .hero-copy h1, .intro-panel h1 { font-size: clamp(34px, 11vw, 48px); }
  .hero-actions { align-items: stretch; }
  .hero-actions .main-btn, .hero-actions .text-btn { flex: 1; }
  .mobile-drawer nav { grid-template-columns: 1fr; }
  .footer-brand img { width: 150px; }
}