:root {
    --page: #E6EBF2;
    --soft: #F5F7FB;
    --white: #FFFFFF;
    --soft-blue: #EEF2F7;
    --line: #DDE4EE;
    --primary: #289CFF;
    --deep: #243447;
    --muted: #66788A;
    --shadow: 0 14px 36px rgba(56, 92, 138, 0.10);
    --radius: 20px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--page); color: var(--deep); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; line-height: 1.75; overflow-x: hidden; padding-top: 94px; }
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }
.site-header { position: fixed; inset: 0 0 auto; z-index: 900; background: rgba(245,247,251,0.94); backdrop-filter: blur(10px); box-shadow: 0 8px 24px rgba(56,92,138,0.10); }
.header-inner { max-width: 1420px; min-height: 76px; margin: 0 auto; padding: 10px 28px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { flex: 0 0 auto; }
.logo img { max-height: 52px; width: auto; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 24px; white-space: nowrap; flex-wrap: nowrap; }
.nav-core a { color: #4E5F7A; position: relative; font-weight: 700; padding: 10px 8px; border-radius: 10px; }
.nav-core a:hover { color: var(--primary); background: rgba(40,156,255,.07); }
.nav-core a.active { color: var(--primary); }
.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%); }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 24px; border-radius: 999px; background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%); color: #FFFFFF; font-weight: 800; box-shadow: 0 10px 24px rgba(36,155,255,.24); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(36,155,255,.30); }
.header-register { flex: 0 0 auto; white-space: nowrap; }
.mobile-menu-button { display: none; width: 42px; height: 42px; border: 0; border-radius: 12px; background: var(--white); box-shadow: 0 8px 20px rgba(56,92,138,.10); padding: 10px; }
.mobile-menu-button span { display: block; height: 2px; margin: 5px 0; border-radius: 999px; background: var(--primary); }
.site-shell { max-width: 1460px; margin: 0 auto; padding: 0 88px 40px 24px; display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 28px; align-items: start; }
.site-main { min-width: 0; }
.side-channel { position: sticky; top: 104px; max-height: calc(100vh - 126px); overflow-y: auto; padding: 16px; background: rgba(255,255,255,0.92); border: 1px solid rgba(40,156,255,0.14); border-radius: 18px; box-shadow: var(--shadow); }
.side-channel-title { padding: 4px 10px 12px; color: var(--deep); font-weight: 800; }
.side-channel nav { display: grid; gap: 5px; }
.side-channel a { color: var(--muted); border-radius: 12px; padding: 8px 10px; font-size: 14px; }
.side-channel a:hover, .side-channel a.active { color: var(--primary); background: rgba(40,156,255,0.10); }
.floating-service { position: fixed; right: 18px; top: 42%; z-index: 600; display: grid; gap: 8px; }
.floating-service a, .floating-service button { width: 54px; min-height: 48px; display: flex; align-items: center; justify-content: center; border-radius: 14px; border: 1px solid rgba(40,156,255,0.16); background: #FFFFFF; color: var(--primary); box-shadow: 0 14px 30px rgba(56,92,138,0.12); font-weight: 700; cursor: pointer; }
.floating-service a.register-link { background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%); color: #FFFFFF; }
.drawer-overlay { position: fixed; inset: 0; z-index: 9900; background: rgba(20,37,58,.46); opacity: 0; visibility: hidden; transition: .25s ease; }
.mobile-drawer { position: fixed; z-index: 10000; inset: 0 auto 0 0; width: 84vw; max-width: 320px; background: #FFFFFF; transform: translateX(-105%); transition: transform .28s ease; box-shadow: 16px 0 48px rgba(20,37,58,.22); overflow-y: auto; }
.mobile-drawer.open { transform: translateX(0); }
body.drawer-open .drawer-overlay { opacity: 1; visibility: visible; }
.drawer-head { min-height: 74px; padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.drawer-logo img { max-height: 44px; width: auto; }
.drawer-close { border: 0; background: var(--soft); color: var(--primary); width: 40px; height: 40px; border-radius: 12px; font-size: 26px; cursor: pointer; }
.drawer-nav { padding: 14px; display: grid; gap: 6px; }
.drawer-nav a { padding: 10px 14px; border-radius: 12px; color: var(--muted); font-weight: 600; }
.drawer-nav a:hover, .drawer-nav a.active { background: rgba(40,156,255,.10); color: var(--primary); }
.mobile-bottom-nav { display: none; }
.banner-slider { max-width: 1200px; height: 360px; margin: 28px auto 36px; border-radius: 22px; background: #FFFFFF; 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: #FFFFFF; }
.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: 44px; height: 44px; border: none; 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: 28px; cursor: pointer; }
.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: none; background: rgba(40,156,255,0.24); cursor: pointer; }
.slider-dots button.active { background: var(--primary); box-shadow: 0 0 0 4px rgba(40,156,255,.12); }
.page-hero, .section, .card, .zone-card, .info-card, .review-card, .notice-panel, .faq-item, .quick-link, .stat-card, .topic-card { background: rgba(255,255,255,0.92); border: 1px solid rgba(40,156,255,0.14); box-shadow: var(--shadow); }
.page-hero { border-radius: 24px; padding: 42px; margin: 28px 0 28px; display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 28px; align-items: center; overflow: hidden; }
.page-hero h1 { margin: 0 0 14px; color: var(--primary); font-size: clamp(30px, 4vw, 52px); line-height: 1.2; }
.page-hero p { margin: 0; color: var(--muted); font-size: 17px; max-width: 820px; }
.hero-actions { margin-top: 24px; display: flex; gap: 12px; flex-wrap: wrap; }
.text-link { display: inline-flex; align-items: center; color: var(--primary); font-weight: 700; }
.section { border-radius: var(--radius); padding: 30px; margin: 24px 0; }
.section-header { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.section-title, h1, h2, h3 { color: var(--primary); }
.section-title { margin: 0; font-size: clamp(24px, 3vw, 34px); line-height: 1.3; }
.section-lead { color: var(--muted); margin: 8px 0 0; }
.content-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.content-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.content-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card, .zone-card, .info-card, .review-card, .topic-card { border-radius: 18px; padding: 22px; }
.card h3, .zone-card h3, .info-card h3, .topic-card h3 { margin: 0 0 10px; font-size: 20px; }
.card p, .zone-card p, .info-card p, .review-card p, .topic-card p { color: var(--muted); margin: 0; }
.card .text-link, .zone-card .text-link, .topic-card .text-link { margin-top: 14px; }
.quick-scroll { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(180px, 1fr); gap: 14px; overflow-x: auto; padding: 4px 2px 12px; scrollbar-width: thin; }
.quick-link { min-height: 128px; padding: 18px; border-radius: 16px; }
.quick-link strong { display: block; color: var(--primary); font-size: 18px; margin-bottom: 7px; }
.quick-link span { color: var(--muted); font-size: 14px; display: block; }
.quick-link em { color: var(--primary); font-style: normal; font-weight: 700; display: inline-block; margin-top: 10px; }
.media-block { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); gap: 26px; align-items: center; }
.media-block.reverse { grid-template-columns: minmax(300px, .9fr) minmax(0, 1.1fr); }
.media-block.reverse .media-copy { order: 2; }
.content-img { width: 100%; max-height: 290px; object-fit: contain; border-radius: 18px; background: var(--soft); }
.product-matrix { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.product-card { border-radius: 18px; overflow: hidden; background: #FFFFFF; border: 1px solid rgba(40,156,255,.14); box-shadow: var(--shadow); }
.product-card img { width: 100%; height: 175px; object-fit: contain; background: var(--soft); }
.product-card-content { padding: 20px; }
.product-card-content h3 { margin: 0 0 8px; }
.product-card-content p { margin: 0; color: var(--muted); }
.notice-panel { border-radius: 18px; padding: 22px; background: linear-gradient(135deg, rgba(40,156,255,.10), rgba(255,255,255,.94)); }
.notice-panel h2, .notice-panel h3 { margin-top: 0; }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.review-card { position: relative; padding-top: 30px; }
.review-card::before { content: "“"; position: absolute; top: 4px; left: 18px; color: rgba(40,156,255,.30); font-size: 48px; line-height: 1; }
.review-card strong { display: block; margin-top: 14px; color: var(--deep); }
.faq-list { display: grid; gap: 12px; }
.faq-item { border-radius: 16px; overflow: hidden; }
.faq-question { width: 100%; border: 0; background: transparent; color: var(--deep); padding: 18px 20px; text-align: left; font-weight: 800; cursor: pointer; display: flex; justify-content: space-between; gap: 20px; }
.faq-question::after { content: "+"; color: var(--primary); font-size: 22px; }
.faq-item.open .faq-question::after { content: "−"; }
.faq-answer { display: none; padding: 0 20px 20px; color: var(--muted); }
.faq-item.open .faq-answer { display: block; }
.compliance-strip { margin: 26px 0; padding: 20px 24px; border-radius: 18px; background: #DDE9F5; color: #4E6073; border: 1px solid rgba(40,156,255,.14); }
.compliance-strip strong { color: var(--deep); }
.inner-image { width: 100%; max-height: 320px; object-fit: contain; border-radius: 20px; background: var(--soft); margin: 0 0 24px; box-shadow: var(--shadow); }
.page-sections { display: grid; gap: 18px; }
.page-section { background: rgba(255,255,255,.92); border: 1px solid rgba(40,156,255,.14); box-shadow: var(--shadow); border-radius: 18px; padding: 26px; }
.page-section h2 { margin: 0 0 12px; }
.page-section p { margin: 0 0 12px; color: var(--muted); }
.page-section p:last-child { margin-bottom: 0; }
.cta-panel { margin: 26px 0; padding: 30px; border-radius: 20px; text-align: center; background: linear-gradient(135deg, #FFFFFF, #E7F5FF); border: 1px solid rgba(40,156,255,.18); box-shadow: var(--shadow); }
.cta-panel h2 { margin-top: 0; }
.site-footer { background: #243447; color: #EAF3FF; margin-top: 48px; padding: 46px 24px 24px; }
.footer-grid { max-width: 1240px; margin: 0 auto; display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 32px; }
.footer-grid h2 { color: #FFFFFF; margin: 0 0 14px; font-size: 18px; }
.footer-grid a { display: block; color: #CFE4FA; margin: 8px 0; }
.footer-grid p { color: #C6D5E4; margin: 0; }
.footer-brand img { max-height: 48px; width: auto; margin-bottom: 16px; }
.footer-bottom { max-width: 1240px; margin: 32px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.13); color: #AFC5D8; font-size: 14px; }
.contact-list { display: grid; gap: 12px; }
.contact-item { padding: 16px; background: var(--soft); border-radius: 14px; color: var(--muted); }
@media (max-width: 1180px) {
    .site-shell { grid-template-columns: 1fr; max-width: 1060px; padding: 0 24px 40px; }
    .side-channel, .floating-service { display: none; }
    .content-grid.four { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 820px) {
    body { padding-top: 76px; padding-bottom: 78px; }
    .header-inner { min-height: 66px; padding: 8px 14px; display: grid; grid-template-columns: 46px minmax(0,1fr) auto; gap: 10px; }
    .mobile-menu-button { display: block; }
    .logo { justify-self: center; }
    .logo img { max-height: 42px; }
    .nav-core { display: none; }
    .header-register { min-height: 40px; padding: 8px 18px; }
    .site-shell { padding: 0 14px 28px; }
    .banner-slider { height: 220px; margin: 16px auto 24px; border-radius: 16px; }
    .slider-arrow { width: 38px; height: 38px; font-size: 24px; }
    .page-hero { padding: 28px 22px; grid-template-columns: 1fr; margin-top: 16px; }
    .section { padding: 22px 18px; }
    .content-grid, .content-grid.two, .content-grid.four, .product-matrix, .review-grid { grid-template-columns: 1fr; }
    .media-block, .media-block.reverse { grid-template-columns: 1fr; }
    .media-block.reverse .media-copy { order: initial; }
    .content-img, .inner-image { max-height: 240px; }
    .footer-grid { grid-template-columns: 1fr; gap: 22px; }
    .mobile-bottom-nav { position: fixed; z-index: 850; left: 0; right: 0; bottom: 0; display: grid; grid-template-columns: repeat(4, 1fr); min-height: 62px; padding: 7px max(8px, env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left)); background: rgba(255,255,255,.96); backdrop-filter: blur(12px); box-shadow: 0 -8px 24px rgba(56,92,138,.12); }
    .mobile-bottom-nav a { display: flex; align-items: center; justify-content: center; color: var(--muted); font-weight: 700; border-radius: 10px; }
    .mobile-bottom-nav a:hover { background: rgba(40,156,255,.09); color: var(--primary); }
}
@media (max-width: 520px) {
    .banner-slider { height: 190px; }
    .page-hero h1 { font-size: 31px; }
    .page-hero p { font-size: 15px; }
    .quick-scroll { grid-auto-columns: 78%; }
    .section-header { display: block; }
    .site-footer { padding-left: 18px; padding-right: 18px; }
}