* { 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;
}
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;
    right: 0;
    z-index: 10020;
    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: inline-flex; align-items: center; }
.logo img { max-height: 52px; width: auto; display: block; }
.nav-core {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    gap: 22px;
    white-space: nowrap;
    flex-wrap: nowrap;
}
.nav-core a {
    color: #4E5F7A;
    font-weight: 700;
    padding: 12px 6px;
    position: relative;
}
.nav-core a.active,
.nav-core a:hover { color: #289CFF; }
.nav-core a.active::after,
.nav-core a:hover::after {
    content: "";
    position: absolute;
    left: 8px;
    right: 8px;
    bottom: 4px;
    height: 3px;
    border-radius: 999px;
    background: #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;
    font-weight: 800;
    cursor: pointer;
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 0;
    border-radius: 999px;
    padding: 12px 24px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    font-weight: 800;
    box-shadow: 0 12px 24px rgba(36,155,255,0.28);
}
.header-btn { padding: 10px 22px; white-space: nowrap; }
.mobile-menu-toggle { display: none; }
.menu-overlay,
.drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(20,38,58,0.24);
    z-index: 9990;
}
.mega-panel {
    position: fixed;
    top: 76px;
    left: 50%;
    transform: translateX(-50%) translateY(-16px);
    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;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: .2s ease;
    padding: 22px;
}
.mega-panel.is-open {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.mega-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; color: #289CFF; }
.mega-head strong { font-size: 20px; }
.mega-close,
.drawer-close {
    border: 0;
    border-radius: 50%;
    width: 38px;
    height: 38px;
    background: #EEF2F7;
    color: #289CFF;
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
}
.mega-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.mega-group {
    background: #F5F7FB;
    border: 1px solid rgba(40,156,255,0.12);
    border-radius: 18px;
    padding: 16px;
}
.mega-group h2 { margin: 0 0 10px; color: #289CFF; font-size: 17px; }
.mega-group a {
    display: block;
    padding: 11px 10px;
    border-radius: 14px;
    color: #4E5F7A;
}
.mega-group a:hover { background: #FFFFFF; color: #289CFF; }
.mega-group span { display: block; font-weight: 800; }
.mega-group small { display: block; color: #8A9AAF; font-size: 12px; margin-top: 2px; }
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: min(84vw, 320px);
    height: 100vh;
    background: #FFFFFF;
    z-index: 10030;
    transform: translateX(-105%);
    transition: .22s ease;
    box-shadow: 18px 0 48px rgba(20,38,58,0.22);
    overflow-y: auto;
}
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-open { overflow: hidden; }
.drawer-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 18px 14px;
    border-bottom: 1px solid rgba(40,156,255,0.12);
}
.drawer-logo img { max-height: 44px; width: auto; }
.drawer-nav { padding: 12px; display: grid; gap: 6px; }
.drawer-nav a {
    padding: 12px 14px;
    border-radius: 14px;
    color: #4E5F7A;
    font-weight: 800;
    background: #F5F7FB;
}
.drawer-nav a.active,
.drawer-nav a:hover { color: #289CFF; background: #EEF2F7; }
.site-main { padding-top: 76px; }
h1, h2, h3, .section-title { color: #289CFF; line-height: 1.25; }
p { margin: 0 0 14px; }
.eyebrow { color: #289CFF; font-weight: 900; letter-spacing: .06em; margin-bottom: 8px; }
.lead { font-size: 18px; color: #4E5F7A; }
.muted { color: #66788A; }
.fine { 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;
}
.banner-slider .slides,
.banner-slider .slide { width: 100%; height: 100%; }
.banner-slider .slide { position: absolute; inset: 0; opacity: 0; transition: opacity .45s ease; }
.banner-slider .slide.active { opacity: 1; position: absolute; }
.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%);
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    background: rgba(245,247,251,0.86);
    color: #289CFF;
    font-size: 30px;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(56,92,138,0.16);
}
.slider-prev { left: 16px; }
.slider-next { right: 16px; }
.slider-dots {
    position: absolute;
    bottom: 14px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}
.slider-dots button {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 0;
    background: rgba(78,95,122,0.32);
    cursor: pointer;
}
.slider-dots button.active { width: 24px; border-radius: 999px; background: #289CFF; }
.section { padding: 34px 0; }
.section-head { margin-bottom: 22px; max-width: 860px; }
.section-head h1,
.section-head h2 { margin: 0 0 12px; font-size: clamp(28px, 4vw, 46px); }
.section-head p { color: #66788A; }
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card {
    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;
}
.card { padding: 26px; }
.card h3,
.zone-card h3,
.info-card h3,
.review-card h3 { margin: 0 0 10px; color: #289CFF; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.hero-card,
.page-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(280px, .92fr);
    gap: 28px;
    align-items: center;
    padding: 34px;
    background: rgba(255,255,255,0.90);
    border: 1px solid rgba(40,156,255,0.16);
    border-radius: 30px;
    box-shadow: 0 18px 46px rgba(56,92,138,0.12);
}
.page-hero { margin-top: 28px; }
.hero-card h1,
.page-hero h1 { margin: 0 0 14px; font-size: clamp(30px, 5vw, 54px); }
.hero-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 22px; }
.content-img,
.zone-card img,
.app-section img,
.banner-slider img,
.hero-img img,
.page-hero img {
    max-width: 100%;
    height: auto;
}
.hero-img,
.content-img-wrap {
    background: #FFFFFF;
    border-radius: 24px;
    padding: 14px;
    border: 1px solid rgba(40,156,255,0.10);
}
.hero-img img,
.content-img-wrap img {
    width: 100%;
    max-height: 360px;
    object-fit: contain;
    margin: 0 auto;
}
.quick-links { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 22px; }
.quick-links a { padding: 16px; border-radius: 18px; background: #F5F7FB; color: #4E5F7A; font-weight: 800; border: 1px solid rgba(40,156,255,0.12); }
.quick-links a:hover { color: #289CFF; background: #FFFFFF; }
.zone-card { overflow: hidden; }
.zone-card img { width: 100%; max-height: 230px; object-fit: contain; background: #FFFFFF; padding: 12px; }
.zone-card .zone-body { padding: 20px; }
.product-matrix { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.product-item { padding: 22px; border-radius: 22px; background: #FFFFFF; border: 1px solid rgba(40,156,255,0.14); }
.product-item strong { display: block; color: #289CFF; font-size: 19px; margin-bottom: 8px; }
.numbered { counter-reset: item; display: grid; gap: 14px; }
.numbered li { list-style: none; position: relative; padding: 16px 18px 16px 58px; background: #FFFFFF; border: 1px solid rgba(40,156,255,0.12); border-radius: 18px; }
.numbered li::before { counter-increment: item; content: counter(item, decimal-leading-zero); position: absolute; left: 18px; top: 16px; color: #289CFF; font-weight: 900; }
.review-card { padding: 22px; }
.review-card p { margin-bottom: 10px; }
.review-card span { color: #8A9AAF; font-size: 14px; }
.faq-list { display: grid; gap: 14px; }
.faq-item { padding: 22px; }
.faq-item h3 { margin: 0 0 8px; font-size: 18px; }
.notice-card { padding: 26px; background: #DDE4EE; }
.notice-card strong { color: #289CFF; }
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0; }
.badge-row span { border-radius: 999px; background: #EEF2F7; border: 1px solid rgba(40,156,255,0.14); padding: 8px 12px; color: #289CFF; font-weight: 800; }
.info-band { background: #F5F7FB; border-radius: 28px; padding: 28px; border: 1px solid rgba(40,156,255,0.14); }
.site-footer { background: #243447; color: #EAF3FF; margin-top: 48px; padding: 44px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 28px; }
.footer-logo img { max-height: 52px; width: auto; margin-bottom: 16px; }
.footer-brand p,
.footer-note p { color: rgba(234,243,255,0.82); }
.footer-col h2 { font-size: 18px; margin: 0 0 12px; color: #EAF3FF; }
.footer-col a { display: block; color: rgba(234,243,255,0.82); padding: 5px 0; }
.footer-col a:hover { color: #FFFFFF; }
.footer-note { border-top: 1px solid rgba(234,243,255,0.14); margin-top: 28px; padding-top: 20px; }
@media (max-width: 980px) {
    .mega-grid, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .hero-card, .page-hero, .grid-2 { grid-template-columns: 1fr; }
    .grid-3, .product-matrix { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
    .site-main { padding-top: 64px; }
    .header-inner { min-height: 64px; display: grid; grid-template-columns: 42px 1fr auto; gap: 10px; }
    .mobile-menu-toggle { display: inline-flex; align-items: center; justify-content: center; flex-direction: column; gap: 5px; width: 42px; height: 42px; border: 0; background: #FFFFFF; border-radius: 14px; }
    .mobile-menu-toggle span { display: block; width: 20px; height: 2px; background: #289CFF; border-radius: 999px; }
    .logo { justify-self: center; }
    .logo img { max-height: 44px; }
    .nav-core, .all-menu-btn { display: none; }
    .header-action { justify-self: end; }
    .header-btn { padding: 9px 16px; }
    .mega-panel { display: none; }
    .banner-slider { width: calc(100% - 24px); margin: 18px auto 20px; border-radius: 18px; aspect-ratio: 16 / 8.8; }
    .slider-arrow { width: 34px; height: 34px; font-size: 24px; }
    .slider-prev { left: 10px; }
    .slider-next { right: 10px; }
    .section { padding: 22px 0; }
    .page-hero, .hero-card { padding: 22px; border-radius: 24px; }
    .quick-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-3, .grid-4, .product-matrix, .footer-grid { grid-template-columns: 1fr; }
    .card, .notice-card, .faq-item { padding: 20px; }
}
@media (max-width: 460px) {
    .container { width: min(100% - 24px, 1200px); }
    .quick-links, .grid-2 { grid-template-columns: 1fr; }
    .hero-actions { align-items: stretch; }
    .hero-actions .main-btn { width: 100%; }
}