* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: #E6EBF2;
    color: #243447;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.72;
    overflow-x: hidden;
    padding-top: 84px;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.container { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10050;
    background: rgba(245,247,251,0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(40,156,255,0.12);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 76px;
}
.logo { flex: 0 0 auto; display: flex; align-items: center; }
.logo img { max-height: 52px; width: auto; display: block; }
.nav-core {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 22px;
    white-space: nowrap;
    flex-wrap: nowrap;
    min-width: 0;
}
.nav-link {
    color: #4E5F7A;
    font-weight: 700;
    font-size: 15px;
    padding: 10px 6px;
    transition: color .2s ease;
}
.nav-link:hover,
.nav-link.is-active { color: #289CFF; }
.header-action {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 12px;
}
.all-menu-btn {
    border: 1px solid rgba(40,156,255,0.18);
    background: rgba(255,255,255,0.74);
    color: #289CFF;
    border-radius: 999px;
    padding: 10px 16px;
    cursor: pointer;
    font-weight: 800;
    white-space: nowrap;
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 20px;
    border-radius: 999px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    font-weight: 800;
    box-shadow: 0 12px 24px rgba(36,155,255,0.22);
    border: 0;
    white-space: nowrap;
}
.register-btn { min-width: 76px; }
.mobile-header { display: none; min-height: 70px; align-items: center; justify-content: space-between; }
.mobile-menu-btn { width: 42px; height: 42px; border: 0; background: #FFFFFF; border-radius: 12px; display: inline-flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; box-shadow: 0 8px 24px rgba(56,92,138,0.12); }
.mobile-menu-btn span { width: 20px; height: 2px; border-radius: 2px; background: #4E5F7A; }
.mobile-logo img { max-height: 48px; width: auto; }
.mobile-register { min-height: 40px; padding: 8px 16px; }
.page-mask { position: fixed; inset: 0; z-index: 9990; background: rgba(36,52,71,0.34); backdrop-filter: blur(3px); }
.mega-panel {
    position: fixed;
    top: 76px;
    left: 50%;
    transform: translateX(-50%);
    width: min(1120px, calc(100% - 32px));
    background: rgba(255,255,255,0.96);
    border: 1px solid rgba(40,156,255,0.16);
    border-radius: 24px;
    box-shadow: 0 24px 60px rgba(56,92,138,0.18);
    z-index: 10000;
    padding: 22px;
}
[hidden] { display: none !important; }
.mega-head { display: flex; align-items: center; justify-content: space-between; padding: 0 4px 16px; border-bottom: 1px solid rgba(40,156,255,0.14); }
.mega-head strong { color: #289CFF; font-size: 22px; }
.panel-close { width: 38px; height: 38px; border: 0; border-radius: 50%; background: #EEF2F7; color: #289CFF; font-size: 28px; line-height: 1; cursor: pointer; }
.mega-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; padding-top: 18px; }
.mega-group { background: #F5F7FB; border: 1px solid rgba(40,156,255,0.12); border-radius: 18px; padding: 16px; }
.mega-group h2 { margin: 0 0 12px; color: #289CFF; font-size: 17px; }
.mega-item { display: block; padding: 12px; border-radius: 14px; margin-bottom: 8px; background: rgba(255,255,255,0.72); transition: transform .18s ease, box-shadow .18s ease; }
.mega-item:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(56,92,138,0.10); }
.mega-item span { display: block; color: #243447; font-weight: 800; }
.mega-item em { display: block; color: #8A9AAF; font-style: normal; font-size: 13px; line-height: 1.5; margin-top: 3px; }
.drawer { position: fixed; top: 0; left: 0; width: min(86vw, 320px); height: 100vh; background: #FFFFFF; z-index: 10020; box-shadow: 22px 0 46px rgba(36,52,71,0.2); transform: translateX(-110%); transition: transform .22s ease; overflow-y: auto; }
.drawer.is-open { transform: translateX(0); }
.drawer-head { min-height: 74px; display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid rgba(40,156,255,0.14); }
.drawer-head img { max-height: 46px; width: auto; }
.drawer-nav { padding: 14px; display: grid; gap: 8px; }
.drawer-link { color: #4E5F7A; font-weight: 800; padding: 12px 14px; border-radius: 14px; background: #F5F7FB; }
.drawer-link.is-active { color: #289CFF; background: #EEF2F7; }
body.drawer-open { overflow: hidden; }
.site-main { min-height: 60vh; }
h1, h2, h3, .section-title { color: #289CFF; line-height: 1.25; }
p { margin: 0 0 14px; }
.lead { font-size: 18px; color: #4E5F7A; max-width: 840px; }
.muted { color: #66788A; }
.small-note { color: #8A9AAF; font-size: 14px; }
.banner-slider {
    max-width: 1200px;
    margin: 28px auto 36px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    overflow: hidden;
    position: relative;
    aspect-ratio: 16 / 6.2;
}
.slides { width: 100%; height: 100%; position: relative; }
.slide { position: absolute; inset: 0; opacity: 0; pointer-events: none; transition: opacity .45s ease; }
.slide.is-active { opacity: 1; pointer-events: auto; }
.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-btn { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; border: 0; border-radius: 50%; background: rgba(255,255,255,0.82); box-shadow: 0 10px 22px rgba(56,92,138,0.18); cursor: pointer; }
.slider-btn:before { content: ""; display: block; width: 12px; height: 12px; border-top: 3px solid #289CFF; border-left: 3px solid #289CFF; margin: 16px auto; }
.slider-btn.prev { left: 18px; }
.slider-btn.next { right: 18px; }
.slider-btn.prev:before { transform: rotate(-45deg); }
.slider-btn.next:before { transform: rotate(135deg); }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 16px; display: flex; justify-content: center; gap: 9px; }
.slider-dot { width: 10px; height: 10px; border: 0; border-radius: 999px; background: rgba(78,95,122,0.36); cursor: pointer; }
.slider-dot.is-active { width: 26px; background: #289CFF; }
.section { margin: 34px auto; }
.hero-card, .card, .zone-card, .info-card, .review-card, .faq-item, .notice-panel, .contact-box, .content-block {
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 14px 36px rgba(56,92,138,0.10);
    border-radius: 24px;
}
.hero-card { padding: 34px; display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: center; }
.hero-card h1 { margin: 0 0 18px; font-size: clamp(30px, 4vw, 52px); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.ghost-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 10px 18px; border-radius: 999px; color: #289CFF; border: 1px solid rgba(40,156,255,0.26); font-weight: 800; background: #FFFFFF; }
.section-head { margin-bottom: 18px; }
.section-head h2 { margin: 0 0 8px; font-size: clamp(24px, 2.6vw, 36px); }
.section-head p { color: #66788A; max-width: 850px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.card, .info-card, .review-card, .faq-item, .content-block { padding: 24px; }
.card h3, .info-card h3, .review-card h3 { margin-top: 0; font-size: 20px; }
.card .number { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 12px; background: #EEF2F7; color: #289CFF; font-weight: 900; margin-bottom: 12px; }
.media-row { display: grid; grid-template-columns: .9fr 1.1fr; gap: 24px; align-items: center; }
.media-row.reverse { grid-template-columns: 1.1fr .9fr; }
.content-img, .zone-card img, .app-section img, .media-card img { max-width: 100%; height: auto; object-fit: contain; border-radius: 20px; background: #FFFFFF; }
.media-card { overflow: hidden; border-radius: 24px; background: #FFFFFF; border: 1px solid rgba(40,156,255,0.16); box-shadow: 0 14px 36px rgba(56,92,138,0.10); }
.zone-card { overflow: hidden; }
.zone-card .zone-body { padding: 20px; }
.zone-card h3 { margin: 0 0 8px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.tag-list span { color: #289CFF; background: #EEF2F7; border: 1px solid rgba(40,156,255,0.16); border-radius: 999px; padding: 7px 12px; font-weight: 800; font-size: 14px; }
.notice-panel { padding: 26px; background: #DDE4EE; }
.notice-panel h2 { margin-top: 0; }
.review-card p { color: #4E5F7A; }
.review-card strong { display: block; color: #289CFF; margin-top: 12px; }
.faq-list { display: grid; gap: 14px; }
.faq-item h3 { margin: 0 0 8px; color: #289CFF; font-size: 18px; }
.page-hero { padding: 38px 0 10px; }
.page-hero .hero-card { grid-template-columns: 1fr; }
.page-hero h1 { max-width: 920px; }
.breadcrumb { color: #8A9AAF; margin-bottom: 10px; font-size: 14px; }
.table-like { display: grid; gap: 12px; }
.table-row { display: grid; grid-template-columns: 170px 1fr; gap: 16px; padding: 16px; border-radius: 16px; background: #F5F7FB; border: 1px solid rgba(40,156,255,0.12); }
.table-row strong { color: #289CFF; }
.contact-box { padding: 24px; }
.contact-line { padding: 14px 0; border-bottom: 1px solid rgba(40,156,255,0.12); }
.contact-line:last-child { border-bottom: 0; }
.site-footer { margin-top: 52px; background: #243447; color: #EAF3FF; padding: 42px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .75fr .75fr 1.1fr; gap: 28px; }
.footer-brand img { max-height: 52px; width: auto; margin-bottom: 14px; }
.site-footer h2 { color: #EAF3FF; margin: 0 0 12px; font-size: 18px; }
.site-footer p { color: #EAF3FF; opacity: .86; }
.site-footer a { display: block; color: #EAF3FF; opacity: .9; margin: 8px 0; }
.footer-bottom { border-top: 1px solid rgba(234,243,255,0.14); margin-top: 28px; padding-top: 18px; display: flex; justify-content: space-between; gap: 18px; color: rgba(234,243,255,0.78); font-size: 14px; }
@media (max-width: 980px) {
    body { padding-top: 76px; }
    .desktop-header { display: none; }
    .mobile-header { display: flex; }
    .mega-panel { display: none !important; }
    .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .hero-card, .media-row, .media-row.reverse { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
    .container { width: min(100% - 24px, 1200px); }
    .banner-slider { margin: 18px auto 26px; border-radius: 18px; aspect-ratio: 16 / 8.2; }
    .slider-btn { width: 38px; height: 38px; }
    .slider-btn.prev { left: 10px; }
    .slider-btn.next { right: 10px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .card, .info-card, .review-card, .faq-item, .content-block, .hero-card, .notice-panel, .contact-box { padding: 20px; border-radius: 20px; }
    .hero-card h1 { font-size: 30px; }
    .lead { font-size: 16px; }
    .table-row { grid-template-columns: 1fr; gap: 6px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; }
}