:root {
    --bg: #F5F7FF;
    --nav: rgba(12,18,40,.94);
    --title: #131A35;
    --primary: #5B6CFF;
    --deep: #16213E;
    --cyan: #00D4FF;
    --gold: #FFC857;
    --rose: #D94F70;
    --violet: #7A5CFF;
    --text: #1F2740;
    --muted: #66708A;
    --soft: #9AA4BA;
    --card: #FFFFFF;
    --border: rgba(91,108,255,.18);
    --shadow: 0 20px 46px rgba(25,43,91,.14);
    --gradient: linear-gradient(135deg,#5B6CFF 0%,#7A5CFF 48%,#00D4FF 100%);
    --radius: 24px;
    --container: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; }
img { max-width: 100%; height: auto; }
button, input, textarea { font: inherit; }
.skip-link {
    position: fixed; left: 16px; top: -80px; z-index: 12000;
    padding: 10px 16px; border-radius: 10px; background: #fff; color: var(--primary);
}
.skip-link:focus { top: 12px; }
.site-header {
    position: sticky; top: 0; width: 100%; z-index: 9999;
    background: var(--nav); backdrop-filter: blur(12px);
    box-shadow: 0 8px 26px rgba(25,43,91,.16);
}
.header-inner {
    width: min(calc(100% - 40px), var(--container)); margin: 0 auto; min-height: 74px;
    display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 26px;
}
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; white-space: nowrap; }
.site-logo img { width: auto; max-width: 48px; max-height: 44px; object-fit: contain; display: block; }
.site-logo strong { font-size: 20px; letter-spacing: .04em; }
.nav-core { display: flex; justify-content: center; align-items: center; gap: 6px; }
.nav-core a { color: #EEF2FF; text-decoration: none; border-radius: 999px; padding: 8px 12px; font-size: 15px; white-space: nowrap; }
.nav-core a:hover, .nav-core a.active { color: #fff; background: rgba(0,212,255,.16); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.main-btn, .secondary-btn {
    display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 11px 22px;
    border-radius: 999px; text-decoration: none; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn { background: var(--gradient); color: #fff; box-shadow: 0 14px 32px rgba(91,108,255,.22); }
.main-btn:hover, .secondary-btn:hover { transform: translateY(-2px); }
.secondary-btn { color: var(--primary); background: #fff; border: 1px solid var(--border); }
.menu-toggle, .drawer-close { border: 0; cursor: pointer; }
.menu-toggle { width: 44px; height: 44px; border-radius: 14px; display: inline-flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; background: rgba(255,255,255,.1); }
.menu-toggle span { width: 20px; height: 2px; background: #fff; border-radius: 5px; }
.mobile-menu-toggle { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(7,11,28,.62); backdrop-filter: blur(4px); }
.site-drawer {
    position: fixed; top: 0; right: 0; z-index: 10001; width: min(420px, 90vw); height: 100dvh; overflow-y: auto;
    transform: translateX(105%); transition: transform .28s ease; background: #fff; box-shadow: -30px 0 60px rgba(7,14,38,.2); padding: 28px;
}
.site-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.drawer-brand { display: flex; align-items: center; gap: 10px; color: var(--title); font-weight: 800; text-decoration: none; }
.drawer-brand img { width: 42px; height: 42px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border-radius: 50%; background: #EEF1FF; color: var(--title); font-size: 28px; line-height: 1; }
.drawer-intro { margin: 22px 0; padding: 18px; border-radius: 18px; background: #EFF8FF; color: var(--muted); }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.drawer-nav a { padding: 12px 14px; border-radius: 14px; text-decoration: none; background: #F7F8FF; color: var(--title); font-weight: 600; }
.drawer-nav a:hover { background: #ECEEFF; color: var(--primary); }
.drawer-support { display: flex; gap: 14px; margin-top: 24px; }
.drawer-support a { color: var(--primary); text-decoration: none; font-weight: 700; }
main { display: block; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.section { padding: 84px 0; }
.section-compact { padding: 56px 0; }
.section-alt { background: linear-gradient(180deg, rgba(234,247,255,.68), rgba(245,247,255,.2)); }
.section-dark { color: #EEF2FF; background: var(--deep); }
.section-dark h2, .section-dark h3, .section-dark .section-title { color: #fff; }
.section-head { max-width: 760px; margin-bottom: 36px; }
.section-head.centered { margin-inline: auto; text-align: center; }
.section-kicker { color: var(--violet); font-weight: 800; letter-spacing: .12em; font-size: 13px; text-transform: uppercase; }
h1, h2, h3, .section-title { margin-top: 0; color: var(--title); line-height: 1.24; }
h1 { font-size: clamp(42px, 7vw, 78px); letter-spacing: -.04em; }
h2 { font-size: clamp(30px, 4.6vw, 48px); letter-spacing: -.025em; }
h3 { font-size: 22px; }
p { margin-top: 0; }
.lead { color: var(--muted); font-size: clamp(17px, 2vw, 20px); }
.text-link { color: var(--primary); text-decoration: none; font-weight: 700; }
.text-link:hover { text-decoration: underline; }
.hero {
    position: relative; overflow: hidden; padding: 86px 0 66px;
    background: radial-gradient(circle at 12% 18%, rgba(122,92,255,.20), transparent 28%),
                radial-gradient(circle at 86% 20%, rgba(0,212,255,.18), transparent 30%),
                linear-gradient(135deg, #F5F2FF 0%, #EAF7FF 52%, #FFF1F7 100%);
}
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }
.hero::before { width: 260px; height: 260px; left: -120px; bottom: -90px; border: 1px solid rgba(91,108,255,.22); }
.hero::after { width: 140px; height: 140px; right: 8%; top: 10%; background: rgba(255,200,87,.18); filter: blur(4px); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; gap: 54px; align-items: center; }
.hero-copy .eyebrow { display: inline-flex; gap: 8px; align-items: center; margin-bottom: 18px; padding: 8px 14px; border-radius: 999px; background: rgba(255,255,255,.74); color: var(--violet); font-weight: 800; border: 1px solid var(--border); }
.hero-copy h1 { margin-bottom: 8px; }
.hero-subtitle { margin: 0 0 20px; color: var(--violet); font-size: clamp(24px, 3.4vw, 38px); font-weight: 800; line-height: 1.3; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 28px 0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 26px 0 0; list-style: none; }
.hero-points li { padding: 8px 13px; border-radius: 999px; background: rgba(255,255,255,.75); color: var(--deep); border: 1px solid var(--border); font-weight: 700; }
.hero-visual { position: relative; min-height: 520px; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; inset: 10% 8%; border-radius: 40px; transform: rotate(-4deg); background: linear-gradient(145deg, rgba(91,108,255,.15), rgba(0,212,255,.09)); }
.hero-visual img { position: relative; z-index: 1; max-height: 560px; width: 100%; object-fit: contain; filter: drop-shadow(0 30px 50px rgba(27,43,91,.18)); }
.floating-note { position: absolute; z-index: 2; padding: 13px 16px; border-radius: 16px; background: rgba(255,255,255,.9); box-shadow: var(--shadow); font-weight: 700; color: var(--title); }
.note-one { left: 1%; bottom: 12%; }
.note-two { right: 1%; top: 18%; }
.highlight-strip { position: relative; z-index: 2; margin-top: -18px; }
.highlight-grid, .feature-grid, .review-grid, .faq-grid, .triple-grid { display: grid; gap: 20px; }
.highlight-grid { grid-template-columns: repeat(4, 1fr); }
.feature-grid { grid-template-columns: repeat(4, 1fr); }
.review-grid { grid-template-columns: repeat(3, 1fr); }
.faq-grid { grid-template-columns: repeat(2, 1fr); }
.triple-grid { grid-template-columns: repeat(3, 1fr); }
.card, .zone-card, .info-card, .review-card, .faq-card {
    background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: var(--radius);
}
.info-card, .review-card, .faq-card { padding: 26px; }
.info-card h3 { margin-bottom: 9px; }
.info-card p, .review-card p, .faq-card p { color: var(--muted); margin-bottom: 0; }
.icon-badge { width: 46px; height: 46px; display: grid; place-items: center; margin-bottom: 18px; border-radius: 15px; background: linear-gradient(135deg, rgba(91,108,255,.14), rgba(0,212,255,.16)); color: var(--violet); font-size: 22px; font-weight: 900; }
.channel-nav { display: flex; flex-wrap: wrap; gap: 12px; }
.channel-pill { flex: 1 1 220px; padding: 16px 18px; border-radius: 20px; background: #fff; border: 1px solid var(--border); text-decoration: none; box-shadow: 0 10px 28px rgba(25,43,91,.08); }
.channel-pill strong { display: block; color: var(--title); margin-bottom: 4px; }
.channel-pill span { color: var(--muted); font-size: 14px; }
.channel-pill:hover { transform: translateY(-2px); border-color: rgba(91,108,255,.4); }
.media-split { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: center; }
.media-split.reverse .media-visual { order: 2; }
.media-visual { position: relative; padding: 24px; border-radius: 34px; background: linear-gradient(145deg, #EEF0FF, #EAFBFF); border: 1px solid var(--border); }
.media-visual img { width: 100%; max-height: 500px; object-fit: contain; display: block; }
.media-visual.dual-image { display: grid; grid-template-columns: 1.15fr .85fr; gap: 14px; align-items: end; }
.media-visual.dual-image img { max-height: 360px; }
.media-visual.dual-image img:last-child { border-radius: 22px; background: rgba(255,255,255,.66); padding: 8px; }
.content-list { display: grid; gap: 15px; padding: 0; margin: 24px 0 0; list-style: none; }
.content-list li { position: relative; padding-left: 28px; color: var(--muted); }
.content-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 10px; height: 10px; border-radius: 50%; background: var(--gradient); }
.dual-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.zone-card { overflow: hidden; }
.zone-card img { width: 100%; height: 300px; object-fit: contain; padding: 20px; background: linear-gradient(135deg,#F1F3FF,#EAF8FF); }
.zone-body { padding: 28px; }
.zone-body p { color: var(--muted); }
.zone-points { display: grid; gap: 10px; margin: 20px 0; }
.zone-point { padding: 12px 14px; border-radius: 14px; background: #F7F8FF; color: var(--deep); font-weight: 650; }
.triple-grid .zone-card img { height: 230px; }
.security-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.security-card { padding: 30px; border-radius: 28px; color: #EEF2FF; background: #11182F; overflow: hidden; }
.security-card.secondary { color: var(--text); background: linear-gradient(145deg,#EFF8FF,#FFF4D6); }
.security-card.secondary h3 { color: var(--title); }
.security-card img { width: 100%; height: 260px; object-fit: contain; margin-bottom: 20px; }
.security-card p { opacity: .84; }
.review-card .quote { color: var(--title); font-size: 18px; line-height: 1.7; }
.review-meta { display: flex; align-items: center; gap: 10px; margin-top: 18px; color: var(--muted); font-size: 14px; }
.review-avatar { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; background: var(--gradient); color: #fff; font-weight: 800; }
.faq-card h3 { font-size: 18px; margin-bottom: 10px; }
.notice-box { padding: 28px; border-radius: 24px; background: #FFF4D6; border: 1px solid rgba(255,200,87,.42); }
.notice-box strong { color: var(--deep); }
.about-band { display: grid; grid-template-columns: .9fr 1.1fr; gap: 34px; align-items: center; padding: 34px; border-radius: 30px; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.about-band img { width: 100%; max-height: 360px; object-fit: contain; }
.page-hero { padding: 72px 0; background: radial-gradient(circle at 10% 10%, rgba(122,92,255,.16), transparent 28%), linear-gradient(135deg,#F7F3FF,#EAF7FF); }
.page-hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 46px; }
.page-hero h1 { font-size: clamp(38px, 6vw, 64px); }
.page-hero img { width: 100%; max-height: 460px; object-fit: contain; filter: drop-shadow(0 28px 44px rgba(25,43,91,.16)); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; color: var(--muted); font-size: 14px; }
.breadcrumbs a { color: var(--primary); text-decoration: none; }
.page-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.article-grid { display: grid; grid-template-columns: 1.14fr .86fr; gap: 28px; align-items: start; }
.article-card { padding: 34px; border-radius: 28px; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.article-card p { color: var(--muted); }
.article-card p:last-child { margin-bottom: 0; }
.step-list { counter-reset: step; display: grid; gap: 14px; padding: 0; list-style: none; }
.step-list li { counter-increment: step; position: relative; padding: 16px 18px 16px 58px; border-radius: 16px; background: #F7F8FF; color: var(--muted); }
.step-list li::before { content: counter(step); position: absolute; left: 16px; top: 14px; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; background: var(--gradient); color: #fff; font-weight: 800; }
.policy-list { display: grid; gap: 14px; }
.policy-item { padding: 18px; border-radius: 18px; background: #EFF8FF; }
.policy-item strong { display: block; color: var(--title); margin-bottom: 5px; }
.policy-item span { color: var(--muted); }
details.faq-detail { padding: 20px 22px; border-radius: 18px; background: #fff; border: 1px solid var(--border); box-shadow: 0 12px 28px rgba(25,43,91,.08); }
details.faq-detail + details.faq-detail { margin-top: 14px; }
details.faq-detail summary { cursor: pointer; color: var(--title); font-weight: 800; }
details.faq-detail p { margin: 14px 0 0; color: var(--muted); }
.cta-band { padding: 38px; border-radius: 32px; background: var(--gradient); color: #fff; box-shadow: 0 24px 55px rgba(91,108,255,.25); }
.cta-band h2 { color: #fff; }
.cta-band p { max-width: 800px; opacity: .9; }
.cta-band .secondary-btn { border-color: transparent; }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 66px 0 26px; }
.footer-inner { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; display: grid; grid-template-columns: 1.8fr repeat(3, 1fr); gap: 40px; }
.footer-brand p { max-width: 430px; color: #AEB7D1; }
.footer-logo { margin-bottom: 18px; }
.footer-links { display: grid; align-content: start; gap: 8px; }
.footer-links h2 { color: #fff; font-size: 17px; margin-bottom: 8px; }
.footer-links a { color: #AEB7D1; text-decoration: none; }
.footer-links a:hover { color: #fff; }
.footer-bottom { width: min(calc(100% - 40px), var(--container)); margin: 40px auto 0; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #9EA8C4; font-size: 14px; }
.footer-bottom p { margin: 0; }
.footer-bottom div { display: flex; gap: 18px; }
.footer-bottom a { color: #C7CEE3; text-decoration: none; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1080px) {
    .nav-core a:nth-child(4), .nav-core a:nth-child(6) { display: none; }
    .highlight-grid, .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1.5fr repeat(2, 1fr); }
    .footer-links:last-child { grid-column: 2 / 4; display: flex; flex-wrap: wrap; gap: 12px 22px; }
    .footer-links:last-child h2 { width: 100%; }
}
@media (max-width: 820px) {
    body { padding-bottom: 74px; }
    .header-inner { width: min(calc(100% - 24px), var(--container)); min-height: 66px; grid-template-columns: auto 1fr auto; gap: 10px; }
    .nav-core, .desktop-menu-toggle { display: none; }
    .mobile-menu-toggle { display: inline-flex; }
    .site-logo { justify-self: center; }
    .site-logo strong { display: none; }
    .site-logo img { max-height: 40px; }
    .header-cta { min-height: 40px; padding: 9px 15px; font-size: 14px; }
    .hero, .page-hero { padding: 58px 0 48px; }
    .hero-grid, .page-hero-grid, .media-split, .article-grid, .about-band { grid-template-columns: 1fr; }
    .hero-visual { min-height: auto; }
    .hero-visual img { max-height: 460px; }
    .floating-note { position: static; display: inline-flex; margin: 8px; }
    .media-split.reverse .media-visual { order: initial; }
    .dual-grid, .security-panel { grid-template-columns: 1fr; }
    .triple-grid, .review-grid { grid-template-columns: 1fr 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / 3; }
    .footer-links:last-child { grid-column: auto; display: grid; }
    .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 9000; height: 66px; display: grid; grid-template-columns: repeat(4, 1fr); padding-bottom: env(safe-area-inset-bottom); background: rgba(255,255,255,.96); border-top: 1px solid var(--border); box-shadow: 0 -12px 30px rgba(25,43,91,.1); backdrop-filter: blur(12px); }
    .mobile-bottom-nav a { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 1px; color: var(--muted); text-decoration: none; font-size: 12px; }
    .mobile-bottom-nav span { color: var(--primary); font-size: 21px; line-height: 1; }
}
@media (max-width: 580px) {
    .container { width: min(calc(100% - 28px), var(--container)); }
    .section { padding: 62px 0; }
    .section-compact { padding: 44px 0; }
    h1 { font-size: 44px; }
    h2 { font-size: 32px; }
    .lead { font-size: 16px; }
    .highlight-grid, .feature-grid, .triple-grid, .review-grid, .faq-grid { grid-template-columns: 1fr; }
    .hero-actions, .page-actions { align-items: stretch; }
    .hero-actions a, .page-actions a { flex: 1 1 auto; }
    .hero-visual img { max-height: 360px; }
    .info-card, .review-card, .faq-card, .article-card { padding: 22px; }
    .zone-card img { height: 230px; }
    .zone-body { padding: 22px; }
    .security-card { padding: 22px; }
    .security-card img { height: 220px; }
    .about-band, .cta-band { padding: 24px; }
    .drawer-nav { grid-template-columns: 1fr; }
    .site-drawer { padding: 22px; }
    .footer-inner { grid-template-columns: 1fr; }
    .footer-brand, .footer-links:last-child { grid-column: auto; }
    .footer-bottom { align-items: flex-start; flex-direction: column; }
}