:root {
    --bg: #E6EBF2;
    --soft: #F5F7FB;
    --white: #FFFFFF;
    --panel: rgba(255,255,255,0.92);
    --line: rgba(40,156,255,0.16);
    --title: #289CFF;
    --text: #243447;
    --muted: #66788A;
    --light: #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(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
    padding-top: 126px;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(245,247,251,0.94);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(56,92,138,0.10);
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 76px;
    padding: 0 22px;
}
.logo img { max-height: 52px; width: auto; }
.nav-core {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    gap: 24px;
    white-space: nowrap;
    flex-wrap: nowrap;
}
.nav-core a {
    color: #4E5F7A;
    position: relative;
    font-weight: 700;
    padding: 10px 4px;
    transition: color .2s ease;
}
.nav-core a:hover,
.nav-core a.active { color: var(--title); }
.nav-core a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -12px;
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: var(--title);
    transform: translateX(-50%);
}
.main-btn,
.register-btn,
.mobile-register {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--btn);
    color: #FFFFFF;
    border-radius: 999px;
    min-height: 42px;
    padding: 0 22px;
    font-weight: 800;
    box-shadow: 0 12px 24px rgba(36,155,255,.22);
    white-space: nowrap;
}
.channel-bar {
    background: rgba(255,255,255,0.78);
    border-top: 1px solid rgba(40,156,255,0.10);
    border-bottom: 1px solid rgba(40,156,255,0.10);
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: thin;
}
.channel-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 8px;
    padding: 10px 22px;
}
.channel-bar a {
    color: #66788A;
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 14px;
    border: 1px solid transparent;
}
.channel-bar a:hover,
.channel-bar a.active {
    color: var(--title);
    background: rgba(40,156,255,0.10);
    border-color: rgba(40,156,255,0.16);
}
.mobile-topbar { display: none; }
.mobile-drawer,
.drawer-mask { display: none; }
.floating-service {
    position: fixed;
    right: 18px;
    top: 42%;
    z-index: 60;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.floating-service a,
.floating-service button {
    min-width: 58px;
    min-height: 38px;
    padding: 0 12px;
    border-radius: 999px;
    background: #FFFFFF;
    color: var(--title);
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 14px 30px rgba(56,92,138,0.12);
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
}
.floating-service a.register-link {
    background: var(--btn);
    color: #FFFFFF;
}
.container,
.page-main,
.home-main { max-width: 1200px; margin: 0 auto; padding: 0 22px; }
.banner-slider {
    max-width: 1200px;
    height: clamp(300px, 31vw, 400px);
    margin: 28px auto 36px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    overflow: hidden;
    position: relative;
    z-index: 1;
}
.banner-slider .slide { display: none; height: 100%; }
.banner-slider .slide.active { display: block; }
.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%);
    z-index: 3;
    border: none;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    background: rgba(255,255,255,0.86);
    color: var(--title);
    box-shadow: 0 8px 20px rgba(56,92,138,0.16);
    font-size: 28px;
    line-height: 1;
}
.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }
.slider-dots {
    position: absolute;
    left: 50%;
    bottom: 14px;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
}
.slider-dots button {
    width: 9px;
    height: 9px;
    padding: 0;
    border-radius: 50%;
    border: none;
    background: rgba(40,156,255,0.24);
}
.slider-dots button.active { background: var(--title); }
h1, h2, h3, .section-title { color: var(--title); line-height: 1.28; }
h1 { font-size: clamp(30px, 5vw, 52px); margin: 12px 0 18px; }
h2 { font-size: clamp(24px, 3vw, 34px); margin: 0 0 14px; }
h3 { font-size: 20px; margin: 0 0 10px; }
p { margin: 0 0 14px; }
.section,
.page-hero,
.content-panel,
.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: 22px;
}
.section { padding: clamp(24px, 4vw, 40px); margin-bottom: 28px; }
.page-hero { padding: clamp(34px, 5vw, 58px); margin: 30px 0 28px; position: relative; overflow: hidden; }
.page-hero::after {
    content: "";
    position: absolute;
    right: -90px;
    top: -90px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(50,209,246,.28), rgba(255,255,255,0));
}
.page-hero > * { position: relative; z-index: 1; }
.eyebrow {
    display: inline-flex;
    color: var(--title);
    background: rgba(40,156,255,.10);
    border: 1px solid rgba(40,156,255,.16);
    border-radius: 999px;
    padding: 6px 14px;
    font-weight: 800;
}
.lead { font-size: 18px; color: #4E5F7A; max-width: 860px; }
.muted { color: var(--muted); }
.home-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
    gap: 24px;
    align-items: center;
}
.home-intro .content-img,
.image-text .content-img {
    width: 100%;
    max-height: 280px;
    object-fit: contain;
    background: #F5F7FB;
    border-radius: 18px;
    border: 1px solid rgba(40,156,255,0.12);
    padding: 12px;
}
.quick-grid,
.card-grid,
.product-grid,
.zone-grid,
.review-grid,
.faq-grid,
.link-grid {
    display: grid;
    gap: 18px;
}
.quick-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.zone-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.review-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.link-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card,
.zone-card,
.info-card,
.review-card,
.faq-item { padding: 22px; }
.card small,
.zone-card small,
.info-card small { color: var(--light); font-weight: 700; letter-spacing: .04em; }
.card p,
.zone-card p,
.info-card p,
.review-card p,
.faq-item p { color: var(--muted); }
.text-link { color: var(--title); font-weight: 800; }
.split,
.two-col,
.image-text {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    align-items: stretch;
}
.image-text { align-items: center; }
.content-panel { padding: 26px; }
.zone-card img,
.card img,
.content-img,
.app-section img,
.banner-slider img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}
.zone-card img,
.card img {
    width: 100%;
    height: 170px;
    object-fit: contain;
    background: #F5F7FB;
    border-radius: 16px;
    padding: 10px;
    margin-bottom: 14px;
}
.pill-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 0; padding: 0; list-style: none; }
.pill-list li { color: var(--title); background: rgba(40,156,255,.10); border: 1px solid rgba(40,156,255,.14); border-radius: 999px; padding: 8px 13px; font-weight: 700; }
.notice-panel { padding: 24px; background: #EEF2F7; }
.notice-panel strong { color: var(--title); }
.site-footer {
    margin-top: 38px;
    background: var(--footer);
    color: var(--footer-text);
    padding: 42px 0 0;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 22px 30px;
    display: grid;
    grid-template-columns: 1.4fr .8fr .8fr 1.1fr;
    gap: 26px;
}
.footer-brand img { max-height: 54px; margin-bottom: 14px; }
.footer-brand p,
.footer-notice p { color: rgba(234,243,255,.82); }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { color: rgba(234,243,255,.82); }
.footer-links a:hover { color: #FFFFFF; }
.footer-links h3,
.footer-notice h3 { color: #FFFFFF; }
.footer-bottom {
    border-top: 1px solid rgba(234,243,255,.12);
    text-align: center;
    padding: 16px 22px;
    color: rgba(234,243,255,.72);
}
.mobile-bottom-nav { display: none; }
@media (max-width: 1100px) {
    .quick-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
    .card-grid,
    .product-grid,
    .zone-grid,
    .review-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .footer-inner { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 768px) {
    body { padding-top: 68px; padding-bottom: 76px; }
    .desktop-header,
    .channel-bar,
    .floating-service { display: none; }
    .mobile-topbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 68px;
        padding: 0 14px;
        gap: 12px;
    }
    .menu-toggle {
        width: 42px;
        height: 42px;
        border: 1px solid rgba(40,156,255,.18);
        border-radius: 14px;
        background: #FFFFFF;
        color: var(--title);
        font-size: 22px;
        font-weight: 900;
    }
    .mobile-logo img { max-height: 46px; width: auto; }
    .mobile-register { min-height: 40px; padding: 0 18px; }
    .drawer-mask {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(36,52,71,.45);
        z-index: 9998;
        opacity: 0;
        pointer-events: none;
        transition: opacity .22s ease;
    }
    .mobile-drawer {
        display: block;
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: 84vw;
        max-width: 320px;
        background: #FFFFFF;
        z-index: 10000;
        transform: translateX(-105%);
        transition: transform .25s ease;
        box-shadow: 22px 0 44px rgba(36,52,71,.16);
        overflow-y: auto;
    }
    .drawer-open { overflow: hidden; }
    .drawer-open .drawer-mask { opacity: 1; pointer-events: auto; }
    .drawer-open .mobile-drawer { transform: translateX(0); }
    .drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 18px; border-bottom: 1px solid rgba(40,156,255,.12); }
    .drawer-head img { max-height: 46px; }
    .drawer-close { width: 38px; height: 38px; border: none; border-radius: 50%; background: rgba(40,156,255,.10); color: var(--title); font-size: 24px; }
    .drawer-nav { display: grid; gap: 8px; padding: 16px; }
    .drawer-nav a { padding: 12px 14px; border-radius: 14px; color: #4E5F7A; font-weight: 700; background: #F5F7FB; }
    .drawer-nav a.active,
    .drawer-nav a:hover { color: var(--title); background: rgba(40,156,255,.12); }
    .mobile-bottom-nav {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        position: fixed;
        left: 12px;
        right: 12px;
        bottom: 10px;
        z-index: 950;
        border-radius: 22px;
        background: rgba(255,255,255,.96);
        box-shadow: 0 12px 32px rgba(56,92,138,.18);
        border: 1px solid rgba(40,156,255,.14);
        overflow: hidden;
    }
    .mobile-bottom-nav a { text-align: center; padding: 10px 4px; color: #66788A; font-weight: 800; }
    .mobile-bottom-nav a.active,
    .mobile-bottom-nav a:hover { color: var(--title); background: rgba(40,156,255,.10); }
    .container,
    .page-main,
    .home-main { padding: 0 14px; }
    .banner-slider { height: clamp(170px, 50vw, 230px); margin: 18px 14px 24px; border-radius: 18px; }
    .slider-arrow { width: 34px; height: 34px; font-size: 22px; }
    .slider-arrow.prev { left: 10px; }
    .slider-arrow.next { right: 10px; }
    .home-intro,
    .split,
    .two-col,
    .image-text,
    .faq-grid { grid-template-columns: 1fr; }
    .quick-grid,
    .card-grid,
    .product-grid,
    .zone-grid,
    .review-grid,
    .link-grid { grid-template-columns: 1fr; }
    .section { padding: 22px; margin-bottom: 20px; }
    .page-hero { margin: 18px 0 20px; padding: 28px 22px; }
    .footer-inner { grid-template-columns: 1fr; }
    .zone-card img,
    .card img { height: 150px; }
}
@media (min-width: 769px) and (max-width: 1050px) {
    body { padding-top: 126px; }
    .nav-core { gap: 16px; }
    .nav-core a { font-size: 15px; }
    .header-inner { gap: 14px; }
}