:root {
    --bg: #E6EBF2;
    --bg-soft: #F5F7FB;
    --surface: #FFFFFF;
    --surface-alt: #EEF2F7;
    --line: rgba(40, 156, 255, 0.16);
    --primary: #289CFF;
    --primary-deep: #167DD3;
    --text: #243447;
    --muted: #66788A;
    --footer: #243447;
    --shadow: 0 14px 36px rgba(56, 92, 138, 0.10);
    --radius: 20px;
    --header-height: 76px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
.container { width: min(1460px, calc(100% - 32px)); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 20000; background: #fff; color: var(--primary); padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    background: rgba(245,247,251,0.94);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(56,92,138,0.10);
}
.header-inner { min-height: var(--header-height); display: grid; grid-template-columns: 180px minmax(420px, 1fr) 120px; align-items: center; gap: 24px; }
.logo { justify-self: start; display: inline-flex; align-items: center; }
.logo img { max-height: 52px; width: auto; }
.nav-core { display: flex; justify-content: center; align-items: center; gap: 24px; white-space: nowrap; flex-wrap: nowrap; }
.nav-core a { color: #4E5F7A; position: relative; font-weight: 700; padding: 10px 6px; border-radius: 10px; transition: .2s ease; }
.nav-core a:hover, .nav-core a.active { color: var(--primary); background: rgba(40,156,255,0.07); }
.nav-core a.active::after { content: ""; position: absolute; left: 50%; bottom: -5px; width: 28px; height: 3px; border-radius: 999px; background: var(--primary); transform: translateX(-50%); }
.header-register, .main-btn { display: inline-flex; align-items: center; justify-content: center; background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%); color: #fff; border-radius: 999px; font-weight: 800; box-shadow: 0 10px 24px rgba(36,155,255,.24); transition: transform .2s ease, box-shadow .2s ease; }
.header-register { justify-self: end; min-width: 96px; min-height: 42px; padding: 0 24px; white-space: nowrap; }
.header-register:hover, .main-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(36,155,255,.30); }
.mobile-menu-button { display: none; width: 42px; height: 42px; padding: 10px; border: 0; border-radius: 12px; background: #fff; box-shadow: 0 8px 20px rgba(56,92,138,.10); }
.mobile-menu-button span { display: block; height: 2px; margin: 5px 0; background: var(--text); border-radius: 99px; }
.mobile-drawer { position: fixed; inset: 0 auto 0 0; width: min(84vw, 320px); z-index: 10000; background: #fff; transform: translateX(-105%); transition: transform .28s ease; box-shadow: 20px 0 50px rgba(36,52,71,.22); overflow-y: auto; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-overlay { position: fixed; inset: 0; z-index: 9999; background: rgba(19,35,52,.42); opacity: 0; visibility: hidden; transition: .25s ease; }
.drawer-open .drawer-overlay { opacity: 1; visibility: visible; }
.drawer-head { min-height: 76px; display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid #E7EDF5; }
.drawer-logo img { max-height: 44px; width: auto; }
.drawer-close { width: 40px; height: 40px; border: 0; border-radius: 50%; background: var(--surface-alt); color: var(--text); font-size: 28px; line-height: 1; }
.drawer-nav { padding: 14px; display: grid; gap: 5px; }
.drawer-nav a { padding: 11px 14px; color: var(--muted); border-radius: 12px; font-weight: 700; }
.drawer-nav a:hover, .drawer-nav a.active { color: var(--primary); background: rgba(40,156,255,.10); }
.page-frame { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 26px; padding-top: calc(var(--header-height) + 28px); padding-bottom: 48px; align-items: start; }
.side-channel { position: sticky; top: 104px; background: rgba(255,255,255,0.92); border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 14px 32px rgba(56,92,138,0.10); padding: 14px; max-height: calc(100vh - 130px); overflow-y: auto; }
.side-channel-title { font-size: 14px; color: var(--muted); font-weight: 800; padding: 4px 10px 10px; letter-spacing: .08em; }
.side-channel nav { display: grid; gap: 4px; }
.side-channel a { color: var(--muted); border-radius: 12px; padding: 9px 11px; font-size: 14px; font-weight: 700; transition: .2s ease; }
.side-channel a:hover, .side-channel a.active { color: var(--primary); background: rgba(40,156,255,0.10); }
.site-main { min-width: 0; }
.floating-service { position: fixed; right: 18px; top: 42%; transform: translateY(-50%); z-index: 60; display: grid; gap: 8px; width: 68px; }
.floating-service a, .floating-service button { min-height: 46px; display: flex; align-items: center; justify-content: center; background: #fff; color: var(--primary); border: 1px solid var(--line); box-shadow: 0 14px 30px rgba(56,92,138,0.12); border-radius: 14px; font-weight: 800; font-size: 13px; }
.floating-service a.register-link { background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%); color: #fff; border: 0; }
.floating-service button { appearance: none; }
.banner-slider { width: 100%; height: 360px; margin: 0 auto 34px; border-radius: 22px; background: #fff; box-shadow: 0 18px 40px rgba(56,92,138,0.12); overflow: hidden; position: relative; z-index: 1; }
.banner-slider .slide { display: none; width: 100%; height: 100%; }
.banner-slider .slide.active { display: block; }
.banner-slider img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.banner-caption, .banner-text, .slide-title, .slide-desc, .slide-content, .slide-card, .banner-card { display: none !important; }
.slider-arrow { position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; width: 46px; height: 46px; border: 0; border-radius: 999px; background: rgba(255,255,255,0.88); color: var(--primary); box-shadow: 0 8px 20px rgba(56,92,138,0.16); font-size: 30px; line-height: 1; }
.slider-arrow:hover { background: #fff; }
.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }
.slider-dots { position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%); display: flex; gap: 8px; z-index: 3; }
.slider-dots button { width: 10px; height: 10px; padding: 0; border-radius: 50%; border: 0; background: rgba(40,156,255,0.24); box-shadow: 0 0 0 3px rgba(255,255,255,.55); }
.slider-dots button.active { background: var(--primary); }
.section { margin: 0 0 32px; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 16px; }
.section-head p { max-width: 700px; margin: 0; color: var(--muted); }
h1, h2, h3, .section-title { color: var(--primary); line-height: 1.35; }
h1 { font-size: clamp(30px, 4vw, 48px); margin: 0 0 14px; }
h2 { font-size: clamp(23px, 3vw, 32px); margin: 0 0 10px; }
h3 { font-size: 19px; margin: 0 0 8px; }
p { margin: 0 0 14px; }
.eyebrow { display: inline-block; margin-bottom: 10px; color: var(--primary-deep); background: rgba(40,156,255,.10); border: 1px solid rgba(40,156,255,.14); padding: 6px 12px; border-radius: 999px; font-weight: 800; font-size: 13px; }
.hero-card, .card, .zone-card, .info-card, .review-card, .faq-item, .notice-card { background: rgba(255,255,255,0.92); border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: var(--radius); }
.hero-card { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr); gap: 26px; align-items: center; padding: clamp(24px, 4vw, 46px); overflow: hidden; }
.hero-card.no-image { grid-template-columns: 1fr; }
.hero-copy p { color: var(--muted); font-size: 16px; max-width: 780px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.main-btn { min-height: 46px; padding: 0 28px; }
.text-link { display: inline-flex; align-items: center; color: var(--primary-deep); font-weight: 800; }
.text-link::after { content: "→"; margin-left: 6px; }
.hero-image { height: 300px; display: flex; align-items: center; justify-content: center; background: linear-gradient(145deg, #F7FBFF, #EAF5FF); border-radius: 18px; padding: 16px; }
.hero-image img, .content-img { width: 100%; height: 100%; object-fit: contain; }
.quick-strip { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 12px; }
.quick-link { min-height: 112px; padding: 16px; background: rgba(255,255,255,.88); border: 1px solid var(--line); border-radius: 17px; box-shadow: 0 10px 26px rgba(56,92,138,.08); }
.quick-link strong { display: block; color: var(--primary); margin-bottom: 6px; }
.quick-link span { display: block; color: var(--muted); font-size: 13px; line-height: 1.55; }
.quick-link em { display: block; margin-top: 8px; color: var(--primary-deep); font-size: 13px; font-style: normal; font-weight: 800; }
.grid-2, .grid-3, .grid-4 { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.card, .info-card, .notice-card { padding: 22px; }
.card p, .info-card p, .notice-card p, .zone-card p { color: var(--muted); }
.card ul, .info-card ul { margin: 12px 0 0; padding-left: 20px; color: var(--muted); }
.card li + li, .info-card li + li { margin-top: 7px; }
.zone-card { overflow: hidden; }
.zone-card-media { height: 190px; padding: 14px; background: #F8FBFE; display: flex; align-items: center; justify-content: center; }
.zone-card img { width: 100%; height: 100%; object-fit: contain; }
.zone-card-body { padding: 20px; }
.split-feature { display: grid; grid-template-columns: minmax(280px, .9fr) minmax(0, 1.1fr); gap: 22px; align-items: stretch; }
.split-feature.reverse { grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr); }
.split-feature .media-panel { min-height: 280px; background: #F8FBFE; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); display: flex; align-items: center; justify-content: center; }
.split-feature .media-panel img { width: 100%; height: 100%; max-height: 300px; object-fit: contain; }
.split-feature .content-panel { padding: 28px; background: rgba(255,255,255,.92); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.matrix { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.matrix .card { min-height: 205px; }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.review-card { padding: 20px; }
.review-card p { color: var(--muted); }
.review-card strong { color: var(--text); }
.review-card span { display: block; margin-top: 10px; color: var(--primary-deep); font-size: 13px; font-weight: 800; }
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 20px 22px; }
.faq-item h3 { font-size: 17px; }
.faq-item p { color: var(--muted); margin-bottom: 0; }
.inline-notice { display: flex; gap: 14px; align-items: flex-start; padding: 18px 20px; border-radius: 16px; background: #FFFDF4; border: 1px solid rgba(218,170,49,.22); color: #6A5A32; }
.inline-notice strong { white-space: nowrap; }
.steps { counter-reset: steps; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.step { counter-increment: steps; padding: 22px; background: rgba(255,255,255,.92); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.step::before { content: counter(steps, decimal-leading-zero); display: inline-flex; width: 42px; height: 42px; align-items: center; justify-content: center; border-radius: 14px; background: rgba(40,156,255,.11); color: var(--primary); font-weight: 900; margin-bottom: 14px; }
.step p { color: var(--muted); }
.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; min-width: 680px; }
th, td { padding: 15px 18px; text-align: left; border-bottom: 1px solid #E8EEF5; }
th { color: var(--primary); background: #F7FAFD; }
td { color: var(--muted); }
.compliance-band { background: #DDE4EE; padding: 24px 0; }
.compliance-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.compliance-grid div { padding: 16px; background: rgba(255,255,255,.65); border-radius: 14px; }
.compliance-grid strong { display: block; color: var(--text); margin-bottom: 5px; }
.compliance-grid span { color: var(--muted); font-size: 13px; }
.site-footer { background: var(--footer); color: #EAF3FF; padding: 42px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 34px; }
.footer-brand img { max-height: 52px; width: auto; margin-bottom: 18px; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 430px; color: #BFD0E2; }
.site-footer h2 { color: #fff; font-size: 17px; }
.site-footer a { display: block; color: #C9D8E8; margin: 7px 0; }
.site-footer a:hover { color: #fff; }
.footer-bottom { margin-top: 30px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); color: #9FB2C8; font-size: 13px; }
.mobile-bottom-nav { display: none; }
.contact-panel { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.contact-item { padding: 22px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.contact-item span { color: var(--muted); }
@media (max-width: 1280px) {
    .container { width: min(1180px, calc(100% - 28px)); }
    .page-frame { grid-template-columns: 176px minmax(0,1fr); }
    .quick-strip { grid-template-columns: repeat(3, minmax(0,1fr)); }
    .floating-service { right: 8px; width: 58px; }
}
@media (max-width: 1050px) {
    .header-inner { grid-template-columns: 160px minmax(360px,1fr) 100px; gap: 14px; }
    .nav-core { gap: 14px; }
    .side-channel, .floating-service { display: none; }
    .page-frame { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .matrix { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .compliance-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 760px) {
    :root { --header-height: 64px; }
    body { padding-bottom: 70px; }
    .container { width: min(100% - 20px, 680px); }
    .site-header { background: rgba(255,255,255,.96); }
    .header-inner { min-height: 64px; display: grid; grid-template-columns: 48px 1fr 80px; gap: 8px; }
    .mobile-menu-button { display: block; }
    .logo { justify-self: center; }
    .logo img { max-height: 40px; max-width: 132px; }
    .nav-core { display: none; }
    .header-register { min-width: 76px; min-height: 38px; padding: 0 16px; font-size: 14px; }
    .page-frame { padding-top: calc(var(--header-height) + 14px); padding-bottom: 24px; }
    .banner-slider { height: 210px; margin-bottom: 22px; border-radius: 16px; }
    .slider-arrow { width: 38px; height: 38px; font-size: 24px; }
    .slider-arrow.prev { left: 8px; }
    .slider-arrow.next { right: 8px; }
    .hero-card, .hero-card.no-image { grid-template-columns: 1fr; padding: 22px; }
    .hero-image { height: 230px; }
    .quick-strip, .grid-2, .grid-3, .grid-4, .matrix, .review-grid, .steps, .contact-panel { grid-template-columns: 1fr; }
    .quick-strip { gap: 10px; }
    .quick-link { min-height: auto; }
    .split-feature, .split-feature.reverse { grid-template-columns: 1fr; }
    .split-feature.reverse .content-panel { order: 1; }
    .split-feature.reverse .media-panel { order: 2; }
    .section { margin-bottom: 24px; }
    .section-head { display: block; }
    .zone-card-media { height: 170px; }
    .compliance-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
    .footer-brand { grid-column: 1 / -1; }
    .mobile-bottom-nav { position: fixed; inset: auto 0 0 0; z-index: 900; display: grid; grid-template-columns: repeat(4, 1fr); min-height: 64px; padding-bottom: env(safe-area-inset-bottom); background: rgba(255,255,255,.96); backdrop-filter: blur(10px); box-shadow: 0 -8px 26px rgba(56,92,138,.14); border-top: 1px solid var(--line); }
    .mobile-bottom-nav a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; color: var(--muted); font-size: 12px; font-weight: 800; }
    .mobile-bottom-nav a span { font-size: 19px; line-height: 1; }
    .mobile-bottom-nav a.active { color: var(--primary); }
    .compliance-band { padding: 18px 0; }
}
@media (max-width: 460px) {
    .banner-slider { height: 185px; }
    h1 { font-size: 30px; }
    .hero-image { height: 205px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand { grid-column: auto; }
}