:root {
    --bg: #E6EBF2;
    --surface: #FFFFFF;
    --surface-soft: #F5F7FB;
    --surface-muted: #EEF2F7;
    --surface-deep: #DDE4EE;
    --primary: #289CFF;
    --nav: #4E5F7A;
    --text: #243447;
    --muted: #66788A;
    --hint: #8A9AAF;
    --border: rgba(40,156,255,.16);
    --shadow: 0 14px 36px rgba(56,92,138,.12);
    --radius: 20px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    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;
    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; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: rgba(245,247,251,.96);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(56,92,138,.10);
}
.header-inner {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.logo { flex: 0 0 auto; min-width: 126px; }
.logo img { max-height: 48px; width: auto; }
.nav-wrap { flex: 1 1 auto; min-width: 0; display: flex; justify-content: center; }
.nav { display: flex; align-items: center; gap: 18px; white-space: nowrap; flex-wrap: nowrap; }
.nav-link {
    position: relative;
    border: 0;
    background: transparent;
    color: var(--nav);
    font-weight: 700;
    padding: 25px 2px 21px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 15px;
    width: 0;
    height: 3px;
    border-radius: 999px;
    background: var(--primary);
    transform: translateX(-50%);
    transition: width .2s ease;
}
.nav-link:hover, .nav-link.active { color: var(--primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.header-action { flex: 0 0 auto; display: flex; align-items: center; }
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 24px;
    border-radius: 999px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    box-shadow: 0 10px 24px rgba(36,155,255,.25);
    font-weight: 800;
    transition: transform .2s ease, filter .2s ease;
}
.main-btn:hover { filter: brightness(.97); transform: translateY(-1px); }
.dropdown { position: relative; }
.dropdown-menu {
    position: absolute;
    top: calc(100% - 8px);
    left: 50%;
    min-width: 190px;
    padding: 9px;
    background: #FFFFFF;
    border: 1px solid rgba(40,156,255,.12);
    border-radius: 14px;
    box-shadow: 0 18px 38px rgba(56,92,138,.16);
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, 10px);
    transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
}
.dropdown:hover .dropdown-menu, .dropdown:focus-within .dropdown-menu, .dropdown.open .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
}
.dropdown-menu a {
    display: block;
    padding: 10px 14px;
    color: var(--nav);
    border-radius: 10px;
    white-space: nowrap;
    font-weight: 650;
}
.dropdown-menu a:hover { color: var(--primary); background: rgba(40,156,255,.08); }
.mobile-menu-btn { display: none; border: 0; background: transparent; padding: 8px; cursor: pointer; }
.mobile-menu-btn span { display: block; width: 24px; height: 2px; margin: 5px 0; background: var(--text); border-radius: 2px; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10010; background: rgba(24,39,59,.44); }
.mobile-drawer {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(84vw, 320px);
    z-index: 10020;
    background: #FFFFFF;
    transform: translateX(-104%);
    transition: transform .28s ease;
    box-shadow: 20px 0 50px rgba(36,52,71,.18);
    overflow-y: auto;
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-head { min-height: 72px; display: flex; align-items: center; justify-content: space-between; padding: 12px 18px; border-bottom: 1px solid var(--border); }
.drawer-logo img { max-height: 44px; width: auto; }
.drawer-close { width: 40px; height: 40px; border: 0; border-radius: 12px; background: var(--surface-muted); color: var(--text); font-size: 28px; cursor: pointer; }
.drawer-nav { padding: 14px; }
.drawer-nav a { display: block; padding: 11px 14px; margin: 3px 0; border-radius: 12px; color: var(--nav); font-weight: 700; }
.drawer-nav a:hover { background: rgba(40,156,255,.08); color: var(--primary); }
main { min-height: 60vh; }
.banner-slider {
    width: min(1200px, calc(100% - 40px));
    margin: 28px auto 36px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,.12);
    overflow: hidden;
    position: relative;
    z-index: 1;
    aspect-ratio: 16 / 6.4;
}
.slider-track { position: relative; width: 100%; height: 100%; }
.slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .45s ease; }
.slide.active { opacity: 1; visibility: visible; }
.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%;
    z-index: 5;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: rgba(255,255,255,.90);
    color: var(--primary);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 8px 22px rgba(36,52,71,.15);
    transform: translateY(-50%);
}
.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }
.slider-dots { position: absolute; z-index: 5; left: 50%; bottom: 14px; display: flex; gap: 8px; transform: translateX(-50%); }
.slider-dot { width: 9px; height: 9px; border: 0; padding: 0; border-radius: 50%; background: rgba(78,95,122,.38); cursor: pointer; }
.slider-dot.active { width: 24px; border-radius: 999px; background: var(--primary); }
.section { padding: 72px 0; }
.section.compact { padding: 54px 0; }
.section-soft { background: var(--surface-soft); }
.section-muted { background: var(--surface-muted); }
.section-deep { background: var(--surface-deep); }
.section-head { max-width: 760px; margin-bottom: 30px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); font-weight: 800; letter-spacing: .08em; font-size: .92rem; }
.section-title, h1, h2, h3 { color: var(--primary); line-height: 1.28; }
h1 { margin: 0 0 18px; font-size: clamp(2rem, 4vw, 3.5rem); }
h2 { font-size: clamp(1.55rem, 2.7vw, 2.25rem); margin: 0 0 14px; }
h3 { font-size: 1.18rem; margin: 0 0 10px; }
p { margin: 0 0 14px; color: var(--muted); }
.lead { font-size: 1.08rem; color: var(--text); }
.grid { display: grid; gap: 22px; }
.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, .zone-card, .info-card, .review-card {
    background: rgba(255,255,255,.92);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 14px 36px rgba(56,92,138,.10);
}
.card { padding: 25px; }
.link-arrow { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 800; margin-top: 5px; }
.link-arrow::after { content: "→"; transition: transform .2s ease; }
.link-arrow:hover::after { transform: translateX(4px); }
.split { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); gap: 34px; align-items: center; }
.split.reverse { grid-template-columns: minmax(320px, .95fr) minmax(0, 1.05fr); }
.split.reverse .split-media { order: -1; }
.split-media { background: #FFFFFF; border: 1px solid var(--border); border-radius: 22px; padding: 14px; box-shadow: var(--shadow); }
.content-img, .zone-card img, .app-section img { width: 100%; height: auto; object-fit: contain; border-radius: 14px; background: #FFFFFF; }
.zone-card { overflow: hidden; }
.zone-card .card-body { padding: 22px; }
.icon-number { width: 38px; height: 38px; display: inline-grid; place-items: center; border-radius: 12px; background: rgba(40,156,255,.10); color: var(--primary); font-weight: 900; margin-bottom: 14px; }
.notice-list, .check-list { margin: 18px 0 0; padding: 0; list-style: none; }
.notice-list li, .check-list li { position: relative; padding: 9px 0 9px 30px; color: var(--muted); }
.notice-list li::before, .check-list li::before { content: "✓"; position: absolute; left: 0; top: 9px; width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; background: rgba(40,156,255,.12); color: var(--primary); font-weight: 900; font-size: .8rem; }
.steps { counter-reset: step; display: grid; gap: 16px; }
.step { position: relative; padding: 20px 20px 20px 66px; background: rgba(255,255,255,.92); border: 1px solid var(--border); border-radius: 18px; }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 20px; top: 20px; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 10px; background: rgba(40,156,255,.12); color: var(--primary); font-weight: 900; }
.review-card { padding: 24px; }
.review-card p { color: var(--text); }
.review-card footer { color: var(--hint); font-weight: 700; }
.faq-list { display: grid; gap: 14px; }
.faq-item { background: rgba(255,255,255,.94); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.faq-question { width: 100%; border: 0; background: transparent; padding: 19px 22px; display: flex; justify-content: space-between; gap: 20px; color: var(--text); font-weight: 800; text-align: left; cursor: pointer; }
.faq-question span:last-child { color: var(--primary); font-size: 1.3rem; }
.faq-answer { display: none; padding: 0 22px 20px; }
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-question span:last-child { transform: rotate(45deg); }
.inner-hero { padding: 62px 0 36px; }
.inner-hero-card { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); gap: 36px; align-items: center; padding: 36px; background: rgba(255,255,255,.92); border: 1px solid var(--border); border-radius: 26px; box-shadow: var(--shadow); }
.inner-hero-card.no-image { grid-template-columns: 1fr; }
.hero-media { border-radius: 20px; overflow: hidden; background: #FFFFFF; border: 1px solid var(--border); }
.hero-media img { width: 100%; height: auto; object-fit: contain; }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.tag { padding: 7px 12px; border-radius: 999px; background: rgba(40,156,255,.09); color: var(--primary); font-weight: 750; font-size: .9rem; }
.service-panel { padding: 30px; border-radius: 22px; background: #243447; box-shadow: var(--shadow); }
.service-panel h2, .service-panel h3 { color: #FFFFFF; }
.service-panel p, .service-panel li { color: #D9E6F3; }
.site-footer { background: #243447; color: #EAF3FF; padding: 56px 0 24px; }
.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; }
.footer-brand p { color: #C9D8E8; max-width: 440px; }
.footer-links { display: grid; align-content: start; gap: 9px; }
.footer-links h2 { color: #FFFFFF; font-size: 1.02rem; margin-bottom: 8px; }
.footer-links a { color: #D7E5F4; }
.footer-links a:hover { color: #FFFFFF; }
.compliance-note { margin-top: 38px; padding-top: 24px; border-top: 1px solid rgba(234,243,255,.16); display: flex; justify-content: space-between; gap: 26px; }
.compliance-note p { color: #BFD0E1; font-size: .9rem; margin: 0; }
@media (max-width: 1080px) {
    .nav { gap: 13px; }
    .nav-link { font-size: .93rem; }
    .logo { min-width: 108px; }
}
@media (max-width: 920px) {
    .container { width: min(100% - 28px, 1180px); }
    .header-inner { min-height: 64px; gap: 10px; }
    .mobile-menu-btn { display: block; flex: 0 0 auto; }
    .nav-wrap { display: none; }
    .logo { position: absolute; left: 50%; transform: translateX(-50%); min-width: 0; }
    .logo img { max-height: 42px; }
    .header-action .main-btn { min-height: 38px; padding: 0 17px; }
    .banner-slider { width: calc(100% - 28px); margin-top: 18px; aspect-ratio: 16 / 8.2; border-radius: 16px; }
    .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .split, .split.reverse, .inner-hero-card { grid-template-columns: 1fr; }
    .split.reverse .split-media { order: 0; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .compliance-note { flex-direction: column; }
}
@media (max-width: 620px) {
    .section { padding: 52px 0; }
    .section.compact { padding: 42px 0; }
    .banner-slider { aspect-ratio: 4 / 2.7; }
    .slider-arrow { width: 38px; height: 38px; font-size: 23px; }
    .slider-arrow.prev { left: 10px; }
    .slider-arrow.next { right: 10px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .inner-hero { padding-top: 32px; }
    .inner-hero-card { padding: 24px; gap: 24px; }
    .card { padding: 22px; }
    .footer-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}