@charset "UTF-8";

:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #E8F7FF;
    --primary: #10AEEA;
    --primary-deep: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --footer: #073A68;
    --footer-text: #EAF8FF;
    --border: #CBEAF7;
    --shadow: 0 18px 50px rgba(20, 112, 164, 0.12);
    --radius: 24px;
    --radius-sm: 16px;
    --gradient: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
    --container: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
body.drawer-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
.container { width: var(--container); margin-inline: auto; }
.skip-link {
    position: fixed; left: 12px; top: -100px; z-index: 9999;
    background: #fff; color: var(--primary-deep); padding: 10px 14px; border-radius: 10px;
}
.skip-link:focus { top: 12px; }

.site-header {
    position: sticky; top: 0; z-index: 900;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(203, 234, 247, 0.8);
    backdrop-filter: blur(14px);
}
.header-shell {
    width: var(--container); min-height: 76px; margin-inline: auto;
    display: flex; align-items: center; gap: 22px;
}
.brand-logo { flex: 0 0 auto; display: inline-flex; align-items: center; }
.brand-logo img { width: 152px; height: 48px; object-fit: contain; }
.desktop-nav {
    min-width: 0; flex: 1; display: flex; justify-content: center; align-items: center;
    gap: clamp(8px, 1vw, 18px); white-space: nowrap;
}
.desktop-nav a {
    position: relative; color: #35576F; font-size: 15px; font-weight: 600;
    padding: 26px 2px 22px;
}
.desktop-nav a::after {
    content: ""; position: absolute; left: 50%; bottom: 16px; width: 0; height: 3px;
    border-radius: 999px; background: var(--gradient); transform: translateX(-50%); transition: width .2s ease;
}
.desktop-nav a:hover, .desktop-nav a.is-active { color: var(--primary); }
.desktop-nav a:hover::after, .desktop-nav a.is-active::after { width: 24px; }
.header-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 12px; }
.main-btn {
    display: inline-flex; align-items: center; justify-content: center; min-height: 44px;
    padding: 0 24px; border: 0; border-radius: 999px; background: var(--gradient); color: #fff;
    font-weight: 700; box-shadow: 0 12px 28px rgba(22, 136, 216, 0.22); transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(22, 136, 216, 0.28); }
.text-link { color: var(--primary-deep); font-weight: 700; }
.text-link:hover { color: var(--primary); }
.menu-toggle {
    display: none; width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 14px;
    background: #fff; padding: 10px; align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.menu-toggle span { width: 22px; height: 2px; background: var(--primary-deep); border-radius: 99px; }
.drawer-overlay { position: fixed; inset: 0; z-index: 920; background: rgba(2, 34, 62, .45); }
.mobile-drawer {
    position: fixed; top: 0; right: 0; z-index: 930; width: min(360px, 88vw); height: 100dvh;
    background: #fff; box-shadow: -22px 0 52px rgba(7, 58, 104, .18); transform: translateX(105%); transition: transform .28s ease;
    display: flex; flex-direction: column;
}
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-head { min-height: 76px; display: flex; align-items: center; justify-content: space-between; padding: 12px 18px; border-bottom: 1px solid var(--border); }
.drawer-logo img { width: 142px; height: 46px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--border); background: var(--surface-soft); color: var(--primary-deep); font-size: 28px; line-height: 1; }
.drawer-nav { padding: 14px 18px; overflow-y: auto; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.drawer-nav a { padding: 11px 12px; border-radius: 12px; color: #35576F; background: #F7FCFF; border: 1px solid #E2F3FA; font-size: 14px; }
.drawer-nav a:hover { color: var(--primary); border-color: var(--primary); }
.drawer-register { margin: auto 18px 20px; }

main { min-height: 60vh; }
.section { padding: 72px 0; }
.section-sm { padding: 48px 0; }
.section-soft { background: var(--surface-soft); }
.section-white { background: var(--surface); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 28px; }
.eyebrow { margin: 0 0 8px; color: var(--primary); font-weight: 800; letter-spacing: .08em; font-size: 14px; }
h1, h2, h3 { margin-top: 0; color: var(--primary-deep); line-height: 1.35; }
h1 { font-size: clamp(34px, 5vw, 58px); margin-bottom: 18px; }
h2 { font-size: clamp(26px, 3.2vw, 38px); margin-bottom: 14px; }
h3 { font-size: 20px; margin-bottom: 10px; }
p { margin: 0 0 16px; }
.lead { max-width: 820px; color: #41647D; font-size: 18px; }
.muted { color: var(--muted); }

.hero-carousel { width: 100%; background: #DFF4FF; border-bottom: 1px solid var(--border); }
.carousel { position: relative; width: 100%; overflow: hidden; }
.carousel-track { display: flex; transition: transform .55s ease; }
.carousel-slide { flex: 0 0 100%; min-width: 100%; background: #DFF4FF; }
.carousel-slide img { width: 100%; height: clamp(260px, 41vw, 620px); object-fit: contain; margin: 0 auto; }
.carousel-arrow {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 2; width: 46px; height: 46px;
    border: 1px solid rgba(255,255,255,.7); border-radius: 50%; background: rgba(7,58,104,.42); color: #fff; font-size: 34px; line-height: 1;
}
.carousel-arrow:hover { background: rgba(7,58,104,.66); }
.carousel-arrow.prev { left: 22px; }
.carousel-arrow.next { right: 22px; }
.carousel-dots { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); display: flex; gap: 8px; z-index: 2; }
.carousel-dot { width: 10px; height: 10px; padding: 0; border: 0; border-radius: 50%; background: rgba(255,255,255,.68); box-shadow: 0 0 0 1px rgba(7,58,104,.16); }
.carousel-dot.is-active { width: 28px; border-radius: 999px; background: #fff; }

.intro-panel { margin-top: -1px; background: #fff; }
.intro-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; }
.intro-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.intro-note { padding: 28px; border-radius: var(--radius); background: linear-gradient(145deg, #F0FBFF, #DDF5FF); border: 1px solid var(--border); }
.intro-note ul { margin: 0; padding-left: 20px; color: #41647D; }

.quick-scroll { display: flex; gap: 12px; overflow-x: auto; padding: 4px 2px 12px; scrollbar-width: thin; }
.quick-scroll a { flex: 0 0 auto; padding: 12px 20px; border-radius: 999px; background: #fff; border: 1px solid var(--border); color: var(--primary-deep); font-weight: 700; box-shadow: 0 8px 20px rgba(21,90,157,.06); }
.quick-scroll a:hover { background: var(--gradient); color: #fff; border-color: transparent; }

.dashboard { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.dashboard-card, .card, .info-card, .review-card, .faq-card {
    background: #fff; border: 1px solid rgba(203,234,247,.9); border-radius: var(--radius-sm); box-shadow: 0 12px 34px rgba(20,112,164,.08);
}
.dashboard-card { padding: 24px; position: relative; overflow: hidden; }
.dashboard-card::before { content: ""; position: absolute; right: -28px; top: -28px; width: 92px; height: 92px; border-radius: 50%; background: rgba(53,215,255,.14); }
.dashboard-card strong { display: inline-flex; width: 34px; height: 34px; align-items: center; justify-content: center; border-radius: 11px; background: var(--surface-soft); color: var(--primary); margin-bottom: 14px; }
.dashboard-card p { color: var(--muted); margin-bottom: 0; }

.feature-card { display: grid; grid-template-columns: 1.05fr .95fr; gap: 0; background: #fff; border-radius: 30px; overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); }
.feature-media { min-height: 360px; background: #EAF8FF; display: flex; align-items: center; justify-content: center; padding: 24px; }
.feature-media img { width: 100%; height: 100%; max-height: 420px; object-fit: contain; }
.feature-copy { padding: clamp(28px, 5vw, 58px); display: flex; flex-direction: column; justify-content: center; }
.feature-copy ul { margin: 4px 0 22px; padding-left: 20px; color: #41647D; }

.alternating { display: grid; gap: 26px; }
.split-card { display: grid; grid-template-columns: 1fr 1fr; border-radius: 26px; overflow: hidden; background: #fff; border: 1px solid var(--border); }
.split-card.is-reverse .split-media { order: 2; }
.split-card.is-reverse .split-copy { order: 1; }
.split-media { min-height: 300px; display: flex; align-items: center; justify-content: center; background: #EDF9FF; padding: 22px; }
.split-media img { width: 100%; height: 100%; max-height: 360px; object-fit: contain; }
.split-copy { padding: clamp(26px, 4vw, 46px); }

.three-grid, .card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { overflow: hidden; }
.card-media { height: 220px; padding: 18px; display: flex; align-items: center; justify-content: center; background: #ECF9FF; }
.card-media img { width: 100%; height: 100%; object-fit: contain; }
.card-body { padding: 24px; }
.card-body p { color: var(--muted); }

.app-banner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: center; padding: clamp(28px, 5vw, 56px); border-radius: 32px; background: linear-gradient(135deg, #FFFFFF 0%, #DDF6FF 100%); border: 1px solid #BDE9F8; box-shadow: var(--shadow); }
.app-banner img { width: 100%; max-height: 360px; object-fit: contain; }
.pill-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0; }
.pill-list span { padding: 8px 14px; border-radius: 999px; background: #fff; color: var(--primary-deep); border: 1px solid var(--border); font-size: 14px; font-weight: 700; }

.rule-grid, .security-grid, .service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.info-card { padding: 28px; }
.info-card p:last-child { margin-bottom: 0; }
.security-media { display: grid; grid-template-columns: .9fr 1.1fr; gap: 30px; align-items: center; }
.security-media img { width: 100%; max-height: 400px; object-fit: contain; background: #fff; border-radius: var(--radius); padding: 18px; border: 1px solid var(--border); }
.alert-card { padding: 24px; border-radius: 18px; background: #FFF9E9; border: 1px solid #F2D889; color: #6B5622; }

.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.review-card { padding: 24px; }
.review-card blockquote { margin: 0 0 16px; color: #3C5B72; }
.review-card cite { font-style: normal; color: var(--primary); font-weight: 800; }

.faq-list { display: grid; gap: 12px; }
details.faq-card { padding: 0; overflow: hidden; }
details.faq-card summary { list-style: none; cursor: pointer; padding: 20px 24px; font-weight: 800; color: var(--primary-deep); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
details.faq-card summary::-webkit-details-marker { display: none; }
details.faq-card summary::after { content: "+"; color: var(--primary); font-size: 24px; }
details.faq-card[open] summary::after { content: "−"; }
details.faq-card p { padding: 0 24px 22px; margin: 0; color: var(--muted); }

.compliance-strip { background: #073A68; color: #EAF8FF; }
.compliance-inner { display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; align-items: center; }
.compliance-inner h2, .compliance-inner h3 { color: #fff; }
.compliance-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.compliance-points div { padding: 16px; border-radius: 14px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); }

.page-hero { padding: 76px 0 56px; background: linear-gradient(155deg, #FFFFFF 0%, #DDF6FF 100%); border-bottom: 1px solid var(--border); }
.page-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 38px; align-items: center; }
.page-hero-media { min-height: 300px; display: flex; align-items: center; justify-content: center; }
.page-hero-media img { width: 100%; max-height: 390px; object-fit: contain; }
.hero-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.breadcrumbs { margin-bottom: 12px; color: var(--muted); font-size: 14px; }
.breadcrumbs a { color: var(--primary-deep); }
.content-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 26px; align-items: start; }
.content-panel { padding: 30px; background: #fff; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: 0 12px 34px rgba(20,112,164,.07); }
.content-panel ul, .content-panel ol { padding-left: 22px; color: #41647D; }
.content-panel p:last-child { margin-bottom: 0; }
.sticky-panel { position: sticky; top: 98px; }
.product-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.product-item { padding: 22px; border-radius: 16px; background: #fff; border: 1px solid var(--border); }
.product-item p { color: var(--muted); margin-bottom: 0; }
.image-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.image-gallery figure { margin: 0; padding: 16px; border-radius: 20px; background: #fff; border: 1px solid var(--border); }
.image-gallery img { width: 100%; height: 240px; object-fit: contain; }
.image-gallery figcaption { margin-top: 12px; color: var(--muted); font-size: 14px; text-align: center; }
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { position: relative; padding: 20px 20px 20px 68px; background: #fff; border: 1px solid var(--border); border-radius: 16px; }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 20px; top: 20px; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: var(--gradient); font-weight: 800; }
.contact-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.contact-option { padding: 24px; background: #fff; border: 1px solid var(--border); border-radius: 18px; }

.site-footer { background: var(--footer); color: var(--footer-text); padding-top: 56px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 36px; }
.footer-brand img { width: 158px; height: 50px; object-fit: contain; filter: brightness(0) invert(1); margin-bottom: 18px; }
.footer-brand p { color: #C6E6F6; max-width: 440px; }
.site-footer h2 { color: #fff; font-size: 17px; }
.footer-links { display: grid; gap: 9px; }
.footer-links a { color: #CBEAF8; }
.footer-links a:hover { color: #fff; }
.footer-notice { margin-top: 42px; padding: 24px 0 28px; border-top: 1px solid rgba(255,255,255,.13); color: #B7DCEB; font-size: 13px; }
.footer-notice p:last-child { margin-bottom: 0; }

@media (max-width: 1180px) {
    .desktop-nav { display: none; }
    .header-shell { min-height: 68px; }
    .brand-logo img { width: 140px; height: 44px; }
    .menu-toggle { display: inline-flex; }
    .header-actions { margin-left: auto; }
}

@media (max-width: 900px) {
    :root { --container: min(100% - 28px, 760px); }
    .section { padding: 56px 0; }
    .intro-grid, .feature-card, .app-banner, .page-hero-grid, .content-grid, .security-media, .compliance-inner { grid-template-columns: 1fr; }
    .dashboard { grid-template-columns: repeat(2, 1fr); }
    .three-grid, .card-grid, .reviews { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .split-card { grid-template-columns: 1fr; }
    .split-card.is-reverse .split-media, .split-card.is-reverse .split-copy { order: initial; }
    .feature-media, .split-media { min-height: 260px; }
    .sticky-panel { position: static; }
    .contact-options { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
    :root { --container: calc(100% - 24px); --radius: 20px; }
    body { font-size: 15px; }
    .header-shell { gap: 10px; }
    .brand-logo img { width: 124px; height: 40px; }
    .header-actions { gap: 8px; }
    .header-actions .main-btn { min-height: 40px; padding-inline: 18px; }
    .menu-toggle { width: 40px; height: 40px; }
    .carousel-slide img { height: clamp(210px, 62vw, 350px); }
    .carousel-arrow { width: 38px; height: 38px; font-size: 28px; }
    .carousel-arrow.prev { left: 10px; }
    .carousel-arrow.next { right: 10px; }
    .carousel-dots { bottom: 10px; }
    .section { padding: 44px 0; }
    .section-sm { padding: 34px 0; }
    h1 { font-size: 34px; }
    h2 { font-size: 27px; }
    .lead { font-size: 16px; }
    .section-head { align-items: flex-start; flex-direction: column; margin-bottom: 22px; }
    .dashboard, .three-grid, .card-grid, .reviews, .rule-grid, .security-grid, .service-grid, .footer-grid, .product-list, .image-gallery, .compliance-points { grid-template-columns: 1fr; }
    .app-banner, .feature-copy, .content-panel { padding: 24px; }
    .feature-media { min-height: 220px; }
    .card-media { height: 200px; }
    .page-hero { padding: 50px 0 42px; }
    .page-hero-media { min-height: 220px; }
    .image-gallery img { height: 210px; }
    .footer-grid { gap: 26px; }
    .drawer-nav { grid-template-columns: 1fr 1fr; }
}