:root {
    --bg: #E6EBF2;
    --panel: #FFFFFF;
    --panel-soft: #F5F7FB;
    --panel-mid: #EEF2F7;
    --panel-deep: #DDE4EE;
    --blue: #289CFF;
    --nav: #4E5F7A;
    --text: #243447;
    --muted: #66788A;
    --light: #8A9AAF;
    --footer: #243447;
    --footer-text: #EAF3FF;
    --line: rgba(40,156,255,0.16);
    --shadow: 0 14px 36px rgba(56,92,138,0.10);
    --radius: 20px;
    --btn: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    background: #E6EBF2;
    color: #243447;
    line-height: 1.8;
}
body.no-scroll { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; }
p { margin: 0 0 14px; }
h1, h2, h3, .section-title { color: #289CFF; line-height: 1.35; margin: 0; }
.site-header {
    background: #F5F7FB;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 8px 24px rgba(36,52,71,0.08);
    border-bottom: 1px solid rgba(40,156,255,0.10);
}
.header-inner {
    max-width: 1240px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 18px;
}
.brand-logo img { width: 132px; height: auto; }
.nav {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    white-space: nowrap;
}
.nav a {
    color: #4E5F7A;
    padding: 8px 10px;
    border-radius: 999px;
    font-size: 14px;
    transition: all .2s ease;
}
.nav a:hover, .nav a.active {
    color: #289CFF;
    background: rgba(40,156,255,0.10);
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 22px;
    border-radius: 999px;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    font-weight: 700;
    box-shadow: 0 10px 24px rgba(36,155,255,0.28);
    border: 0;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn:hover { transform: translateY(-1px); box-shadow: 0 14px 30px rgba(36,155,255,0.34); }
.header-btn { flex: 0 0 auto; }
.menu-toggle { display: none; width: 42px; height: 42px; border: 0; border-radius: 12px; background: #FFFFFF; box-shadow: 0 8px 20px rgba(56,92,138,0.12); }
.menu-toggle span { display: block; width: 20px; height: 2px; margin: 5px auto; background: #289CFF; border-radius: 2px; }
.drawer-mask { position: fixed; inset: 0; background: rgba(36,52,71,.46); z-index: 1200; display: none; }
.drawer-mask.show { display: block; }
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: min(320px, 86vw);
    height: 100vh;
    z-index: 1300;
    background: #F5F7FB;
    box-shadow: -16px 0 38px rgba(36,52,71,.18);
    transition: right .25s ease;
    padding: 18px;
    overflow-y: auto;
}
.mobile-drawer.open { right: 0; }
.drawer-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.drawer-logo img { width: 126px; height: auto; }
.drawer-close { border: 0; width: 38px; height: 38px; border-radius: 12px; background: #FFFFFF; color: #289CFF; font-size: 28px; line-height: 1; }
.drawer-links { display: grid; gap: 8px; }
.drawer-links a { padding: 12px 14px; border-radius: 14px; color: #4E5F7A; background: rgba(255,255,255,0.72); }
.drawer-links a.active { color: #289CFF; background: rgba(40,156,255,0.12); }
.drawer-btn { width: 100%; margin-top: 18px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.page-main { padding: 28px 0 58px; }
.banner-slider {
    max-width: 1200px;
    margin: 28px auto 36px;
    border-radius: 20px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    overflow: hidden;
    position: relative;
}
.slider-track { position: relative; height: clamp(280px, 42vw, 520px); }
.slide { position: absolute; inset: 0; opacity: 0; pointer-events: none; transition: opacity .5s ease; background: #FFFFFF; }
.slide.active { opacity: 1; pointer-events: auto; }
.banner-slider img { width: 100%; height: 100%; object-fit: contain; background: #FFFFFF; }
.slide-copy {
    position: absolute;
    left: clamp(18px, 4vw, 50px);
    bottom: clamp(18px, 4vw, 46px);
    max-width: 450px;
    padding: 18px 20px;
    background: rgba(245,247,251,0.90);
    border: 1px solid rgba(40,156,255,0.18);
    border-radius: 18px;
    box-shadow: 0 12px 30px rgba(36,52,71,0.12);
}
.slide-copy h1, .slide-copy h2 { font-size: clamp(24px, 4vw, 42px); margin-bottom: 8px; }
.slide-copy p { color: #4E5F7A; margin: 0; }
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    color: #FFFFFF;
    background: rgba(40,156,255,0.86);
    font-size: 28px;
    cursor: pointer;
}
.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 14px; display: flex; justify-content: center; gap: 8px; }
.slider-dots button { width: 10px; height: 10px; padding: 0; border: 0; border-radius: 999px; background: rgba(78,95,122,0.35); cursor: pointer; }
.slider-dots button.active { width: 26px; background: #289CFF; }
.section { margin: 36px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.section-title { font-size: clamp(24px, 3vw, 34px); }
.section-subtitle { max-width: 700px; color: #66788A; margin-top: 8px; }
.hero-card, .card, .zone-card, .info-card, .review-card, .faq-item, .notice-panel {
    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: 20px;
}
.hero-card { padding: clamp(22px, 4vw, 44px); display: grid; grid-template-columns: 1.1fr .9fr; gap: 30px; align-items: center; }
.hero-card h1 { font-size: clamp(30px, 4.5vw, 52px); margin-bottom: 12px; }
.hero-card .lead { font-size: 17px; color: #4E5F7A; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.text-link { color: #289CFF; font-weight: 700; display: inline-flex; align-items: center; gap: 4px; }
.text-link::after { content: '›'; font-size: 20px; line-height: 1; }
.content-img { max-width: 100%; height: auto; border-radius: 18px; box-shadow: 0 14px 32px rgba(36,52,71,0.12); background: #FFFFFF; }
.grid { display: grid; gap: 18px; }
.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, .faq-item { padding: 22px; }
.card h3, .zone-card h3, .info-card h3, .review-card h3, .faq-item h3 { font-size: 20px; margin-bottom: 10px; }
.card p, .zone-card p, .info-card p, .review-card p, .faq-item p { color: #66788A; }
.card .tag, .info-card .tag { display: inline-flex; margin-bottom: 12px; padding: 4px 10px; border-radius: 999px; color: #289CFF; background: rgba(40,156,255,0.10); font-size: 13px; font-weight: 700; }
.zone-card { overflow: hidden; padding: 0; }
.zone-card img { width: 100%; height: auto; max-width: 100%; background: #FFFFFF; }
.zone-card .zone-body { padding: 20px; }
.app-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center; }
.app-section img { max-width: 100%; height: auto; border-radius: 20px; background: #FFFFFF; box-shadow: 0 14px 32px rgba(36,52,71,0.12); }
.step-list { counter-reset: steps; display: grid; gap: 14px; }
.step { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: flex-start; padding: 18px; background: rgba(255,255,255,0.82); border: 1px solid rgba(40,156,255,.14); border-radius: 18px; }
.step::before { counter-increment: steps; content: counter(steps, decimal-leading-zero); width: 44px; height: 44px; border-radius: 50%; background: rgba(40,156,255,0.12); color: #289CFF; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.step h3 { margin: 0 0 4px; font-size: 18px; }
.step p { color: #66788A; margin: 0; }
.notice-panel { padding: 24px; background: #EEF2F7; }
.notice-panel strong { color: #289CFF; }
.page-hero { margin: 28px 0 32px; }
.page-hero .hero-card { background: linear-gradient(135deg, rgba(255,255,255,.95), rgba(245,247,251,.90)); }
.breadcrumb { color: #8A9AAF; font-size: 14px; margin-bottom: 8px; }
.inline-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.inline-list span { color: #289CFF; background: rgba(40,156,255,0.10); padding: 6px 12px; border-radius: 999px; font-weight: 700; }
.review-card { position: relative; }
.review-card::before { content: '“'; position: absolute; top: -8px; right: 18px; color: rgba(40,156,255,.18); font-size: 70px; line-height: 1; font-family: Georgia, serif; }
.review-name { color: #289CFF; font-weight: 700; margin-top: 10px; }
.faq-list { display: grid; gap: 14px; }
.faq-item h3 { color: #289CFF; }
.service-strip { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.service-strip .mini { padding: 18px; border-radius: 18px; background: rgba(255,255,255,.78); border: 1px solid rgba(40,156,255,.14); }
.service-strip .mini strong { color: #289CFF; display: block; margin-bottom: 6px; }
.site-footer { background: #243447; color: #EAF3FF; padding: 46px 0 0; }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px 34px; display: grid; grid-template-columns: 1.6fr repeat(3, .8fr); gap: 28px; }
.footer-logo img { width: 138px; height: auto; margin-bottom: 14px; }
.footer-brand p { color: rgba(234,243,255,.82); }
.footer-notice { font-size: 14px; }
.footer-col h3 { font-size: 18px; margin-bottom: 12px; }
.footer-col a { display: block; color: rgba(234,243,255,.82); margin: 8px 0; }
.footer-col a:hover { color: #FFFFFF; }
.footer-bottom { border-top: 1px solid rgba(234,243,255,.12); text-align: center; padding: 16px 20px; color: rgba(234,243,255,.76); }
.back-top { position: fixed; right: 18px; bottom: 20px; width: 42px; height: 42px; border-radius: 50%; background: #289CFF; color: #FFFFFF; display: flex; align-items: center; justify-content: center; box-shadow: 0 10px 24px rgba(36,155,255,.28); }
@media (max-width: 1120px) {
    .nav { display: none; }
    .menu-toggle { display: block; }
    .header-inner { justify-content: space-between; }
    .header-btn { margin-left: auto; }
    .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .service-strip { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 860px) {
    .page-main { padding-top: 18px; }
    .banner-slider { margin: 18px 16px 28px; border-radius: 18px; }
    .slider-track { height: clamp(240px, 58vw, 380px); }
    .slide-copy { position: static; margin: 12px; max-width: none; }
    .slider-arrow { width: 38px; height: 38px; font-size: 24px; }
    .hero-card, .app-section { grid-template-columns: 1fr; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
    .container { padding: 0 16px; }
    .header-inner { padding: 10px 14px; gap: 10px; }
    .brand-logo img { width: 112px; }
    .header-btn { padding: 8px 16px; min-height: 38px; }
    .grid-4, .service-strip { grid-template-columns: 1fr; }
    .section-head { align-items: flex-start; flex-direction: column; }
    .slider-track { height: 230px; }
    .slide-copy { padding: 14px; }
    .footer-inner { grid-template-columns: 1fr; }
    .back-top { right: 12px; bottom: 12px; }
}