:root {
    --main-bg: #E6EBF2;
    --soft-bg: #F5F7FB;
    --white: #FFFFFF;
    --mist: #EEF2F7;
    --line: rgba(40,156,255,0.16);
    --title: #289CFF;
    --nav: #4E5F7A;
    --text: #243447;
    --sub: #66788A;
    --hint: #8A9AAF;
    --footer: #243447;
    --footer-text: #EAF3FF;
    --shadow: 0 14px 36px rgba(56,92,138,0.10);
    --btn: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--main-bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, .section-title { color: var(--title); line-height: 1.25; margin: 0 0 16px; }
p { margin: 0 0 14px; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: rgba(245,247,251,0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(40,156,255,0.14);
}
.header-inner {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    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;
    gap: 22px;
    white-space: nowrap;
    flex-wrap: nowrap;
}
.nav-core a {
    color: var(--nav);
    font-weight: 700;
    padding: 8px 2px;
    position: relative;
}
.nav-core a:after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 2px;
    width: 0;
    height: 3px;
    border-radius: 99px;
    background: var(--title);
    transform: translateX(-50%);
    transition: .2s ease;
}
.nav-core a:hover, .nav-core a.active { color: var(--title); }
.nav-core a:hover:after, .nav-core a.active:after { width: 28px; }
.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: var(--title);
    border-radius: 999px;
    padding: 10px 16px;
    font-weight: 800;
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--btn);
    color: #FFFFFF;
    border: 0;
    border-radius: 999px;
    padding: 11px 22px;
    font-weight: 800;
    box-shadow: 0 10px 24px rgba(36,155,255,0.24);
    white-space: nowrap;
}
.main-btn:hover { transform: translateY(-1px); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; padding: 10px; }
.menu-toggle span { display: block; height: 3px; border-radius: 3px; margin: 5px 0; background: var(--title); }
.mega-mask, .drawer-mask {
    position: fixed;
    inset: 0;
    background: rgba(21,42,68,0.24);
    z-index: 9998;
    opacity: 0;
    transition: opacity .2s ease;
}
.mega-mask.show, .drawer-mask.show { opacity: 1; }
.mega-panel {
    position: fixed;
    top: 76px;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    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: 24px;
    opacity: 0;
    transition: .22s ease;
}
.mega-panel.open { opacity: 1; transform: translateX(-50%) translateY(0); }
.mega-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.mega-head strong { color: var(--title); font-size: 22px; display: block; }
.mega-head span { color: var(--sub); font-size: 14px; }
.mega-close, .drawer-close { border: 0; width: 40px; height: 40px; border-radius: 50%; background: var(--mist); color: var(--title); font-size: 26px; line-height: 1; }
.mega-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.mega-group { background: #F5F7FB; border: 1px solid rgba(40,156,255,0.12); border-radius: 18px; padding: 18px; }
.mega-group h3 { font-size: 18px; margin-bottom: 12px; }
.mega-group a { display: block; padding: 11px 0; border-top: 1px solid rgba(40,156,255,0.10); }
.mega-group a:first-of-type { border-top: 0; }
.mega-group b { color: var(--text); display: block; }
.mega-group a:hover b { color: var(--title); }
.mega-group span { color: var(--sub); font-size: 13px; display: block; line-height: 1.5; }
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: min(84vw, 320px);
    height: 100vh;
    background: #FFFFFF;
    z-index: 10001;
    transform: translateX(-105%);
    transition: transform .26s ease;
    box-shadow: 20px 0 54px rgba(36,52,71,0.18);
    overflow-y: auto;
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-open { overflow: hidden; }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px; border-bottom: 1px solid var(--line); }
.drawer-logo img { max-height: 48px; width: auto; }
.drawer-nav { padding: 12px 18px 28px; display: grid; gap: 8px; }
.drawer-nav a { padding: 12px 14px; border-radius: 14px; background: #F5F7FB; color: var(--nav); font-weight: 700; }
.drawer-nav a.active, .drawer-nav a:hover { color: var(--title); background: #EEF6FF; }
.page-main { padding-top: 1px; }
.container { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }
.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;
}
.slide { display: none; }
.slide.active { display: block; }
.banner-slider img {
    width: 100%;
    height: auto;
    max-height: 520px;
    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: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    color: #FFFFFF;
    background: rgba(36,52,71,0.38);
    font-size: 34px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.slider-prev { left: 16px; }
.slider-next { right: 16px; }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 14px; display: flex; justify-content: center; gap: 8px; }
.slider-dot { width: 10px; height: 10px; border-radius: 50%; border: 0; padding: 0; background: rgba(255,255,255,0.58); box-shadow: 0 0 0 1px rgba(36,52,71,0.08); }
.slider-dot.active { background: var(--title); }
.section { margin: 30px auto; }
.section-pad { padding: 34px; }
.card, .zone-card, .info-card, .review-card, .page-hero, .content-panel, .faq-item, .notice-box {
    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;
}
.page-hero { width: min(1200px, calc(100% - 32px)); margin: 28px auto; padding: 38px; display: grid; grid-template-columns: minmax(0,1.15fr) minmax(280px,.85fr); gap: 28px; align-items: center; }
.page-hero.no-img { display: block; }
.hero-kicker, .eyebrow { color: var(--title); font-weight: 900; letter-spacing: .03em; margin-bottom: 8px; }
.page-hero h1 { font-size: clamp(30px, 5vw, 52px); }
.hero-lead { color: var(--sub); font-size: 18px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.secondary-btn { display: inline-flex; border: 1px solid rgba(40,156,255,0.22); color: var(--title); background: #FFFFFF; border-radius: 999px; padding: 10px 20px; font-weight: 800; }
.visual-card { background: #F5F7FB; border-radius: 22px; padding: 14px; border: 1px solid rgba(40,156,255,0.12); }
.visual-card img, .content-img, .zone-card img, .app-section img, .banner-slider img { max-width: 100%; height: auto; object-fit: contain; }
.lead-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items: center; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card, .zone-card, .info-card, .review-card { padding: 24px; }
.card h3, .zone-card h3, .info-card h3, .review-card h3 { font-size: 20px; }
.card p, .zone-card p, .info-card p, .review-card p, li { color: var(--sub); }
.tag { display: inline-flex; align-items: center; min-height: 30px; padding: 4px 12px; border-radius: 999px; background: #EEF6FF; color: var(--title); font-weight: 800; margin-bottom: 12px; }
.number { color: var(--title); font-weight: 900; font-size: 24px; }
.content-panel { padding: 30px; }
.feature-list { display: grid; gap: 12px; padding: 0; margin: 0; list-style: none; }
.feature-list li { background: #F5F7FB; border: 1px solid rgba(40,156,255,0.10); padding: 14px 16px; border-radius: 16px; }
.step-list { counter-reset: step; padding: 0; margin: 0; list-style: none; display: grid; gap: 14px; }
.step-list li { counter-increment: step; position: relative; padding: 16px 16px 16px 58px; background: #F5F7FB; border: 1px solid rgba(40,156,255,0.10); border-radius: 16px; }
.step-list li:before { content: counter(step); position: absolute; left: 16px; top: 16px; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; color: #FFFFFF; background: var(--btn); font-weight: 900; }
.review-card { position: relative; }
.review-card:before { content: "“"; position: absolute; right: 22px; top: 8px; color: rgba(40,156,255,0.20); font-size: 70px; line-height: 1; }
.faq-list { display: grid; gap: 14px; }
.faq-item { padding: 20px 22px; }
.faq-item h3 { font-size: 18px; margin-bottom: 8px; }
.notice-box { padding: 24px; background: #F5F7FB; }
.notice-box strong { color: var(--title); }
.page-title-block { width: min(900px, calc(100% - 32px)); margin: 32px auto 22px; text-align: center; }
.page-title-block p { color: var(--sub); font-size: 18px; }
.pill-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.pill { display: inline-flex; padding: 8px 14px; border-radius: 999px; color: var(--title); background: #EEF6FF; font-weight: 800; }
.site-footer { background: #243447; color: #EAF3FF; margin-top: 52px; }
.footer-inner { width: min(1200px, calc(100% - 32px)); margin: 0 auto; display: grid; grid-template-columns: 1.15fr 1.85fr; gap: 38px; padding: 42px 0; }
.footer-brand img { max-height: 54px; width: auto; margin-bottom: 18px; }
.footer-brand p, .footer-note p { color: rgba(234,243,255,0.78); }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-links h3 { color: #EAF3FF; font-size: 18px; }
.footer-links a { display: block; color: rgba(234,243,255,0.78); margin: 8px 0; }
.footer-links a:hover { color: #FFFFFF; }
.footer-note { border-top: 1px solid rgba(234,243,255,0.12); padding: 18px 16px 24px; text-align: center; width: min(1200px, 100%); margin: 0 auto; }
@media (max-width: 980px) {
    .mega-grid { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .page-hero, .lead-grid, .footer-inner { grid-template-columns: 1fr; }
    .page-hero { padding: 28px; }
}
@media (max-width: 760px) {
    .site-header { position: sticky; }
    .header-inner {
        width: calc(100% - 20px);
        min-height: 68px;
        display: grid;
        grid-template-columns: 52px 1fr auto;
        gap: 8px;
    }
    .menu-toggle { display: block; grid-column: 1; }
    .logo { grid-column: 2; justify-content: center; }
    .logo img { max-height: 44px; }
    .nav-core, .all-menu-btn { display: none; }
    .header-action { grid-column: 3; }
    .register-btn { padding: 9px 16px; }
    .mega-panel { display: none !important; }
    .banner-slider { margin: 16px 10px 24px; border-radius: 16px; }
    .slider-arrow { width: 38px; height: 38px; font-size: 28px; }
    .page-hero { margin: 16px auto; padding: 22px; }
    .section-pad { padding: 22px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: 1fr; }
    .card, .zone-card, .info-card, .review-card, .content-panel { padding: 20px; }
    .page-hero h1 { font-size: 30px; }
    .hero-lead { font-size: 16px; }
}