:root {
    --bg: #f5f7ff;
    --nav: rgba(12, 18, 40, .94);
    --title: #131a35;
    --brand: #5b6cff;
    --deep: #16213e;
    --cyan: #00d4ff;
    --gold: #ffc857;
    --pink: #d94f70;
    --violet: #7a5cff;
    --text: #1f2740;
    --muted: #66708a;
    --soft: #9aa4ba;
    --card: #fff;
    --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%);
    --max: 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: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.75;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; }
img { max-width: 100%; height: auto; }
button, a { -webkit-tap-highlight-color: transparent; }
.container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 9999;
    background: var(--nav);
    backdrop-filter: blur(14px);
    box-shadow: 0 8px 26px rgba(25, 43, 91, .16);
}
.header-inner {
    width: min(calc(100% - 40px), 1280px);
    min-height: 72px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; flex: 0 0 auto; }
.site-logo img { display: block; width: auto; max-width: 112px; max-height: 44px; object-fit: contain; }
.site-logo strong { font-size: 21px; letter-spacing: .05em; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 6px; margin-left: auto; }
.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; flex: 0 0 auto; }
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 22px;
    border: 0;
    border-radius: 999px;
    background: var(--gradient);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 14px 32px rgba(91, 108, 255, .22);
    transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 36px rgba(91, 108, 255, .3); }
.secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 22px; border: 1px solid rgba(91,108,255,.28); border-radius: 999px; background: #fff; color: var(--brand); text-decoration: none; font-weight: 700; }
.menu-toggle { width: 44px; height: 44px; padding: 10px; border: 1px solid rgba(255,255,255,.18); border-radius: 14px; background: rgba(255,255,255,.08); cursor: pointer; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; border-radius: 4px; background: #fff; }
.mobile-menu-toggle { display: none; }
.site-main { min-height: 60vh; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(5, 8, 22, .58); opacity: 0; transition: opacity .25s ease; }
.drawer-overlay.is-visible { opacity: 1; }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(390px, 92vw); height: 100dvh; overflow-y: auto; transform: translateX(102%); transition: transform .3s ease; background: #10172d; color: #eef2ff; box-shadow: -24px 0 60px rgba(0,0,0,.28); padding: 24px; }
.site-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.drawer-brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-size: 20px; font-weight: 800; }
.drawer-brand img { width: auto; max-width: 100px; max-height: 40px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; background: transparent; color: #fff; font-size: 27px; cursor: pointer; }
.drawer-intro { color: #aeb9d4; font-size: 14px; }
.drawer-nav { display: grid; gap: 6px; margin: 22px 0; }
.drawer-nav a { display: flex; align-items: center; justify-content: space-between; padding: 11px 14px; border-radius: 14px; color: #eef2ff; text-decoration: none; }
.drawer-nav a:hover, .drawer-nav a.active { background: linear-gradient(135deg, rgba(91,108,255,.35), rgba(217,79,112,.2)); }
.drawer-note { padding: 18px; border: 1px solid rgba(0,212,255,.22); border-radius: 18px; background: rgba(0,212,255,.06); }
.drawer-note p { margin: 6px 0 0; color: #b8c3db; font-size: 13px; }
.hero { position: relative; overflow: hidden; padding: 82px 0 70px; background: radial-gradient(circle at 14% 22%, rgba(217,79,112,.18), transparent 34%), radial-gradient(circle at 86% 26%, rgba(0,212,255,.2), transparent 32%), linear-gradient(135deg, #eef0ff 0%, #fff7fb 45%, #eafaff 100%); }
.hero::after { content: ""; position: absolute; width: 330px; height: 330px; right: -120px; bottom: -170px; border-radius: 50%; background: rgba(122,92,255,.12); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(380px, .95fr); align-items: center; gap: 56px; }
.hero-copy h1 { margin: 10px 0 4px; color: var(--title); font-size: clamp(48px, 7vw, 84px); line-height: 1.05; letter-spacing: -.04em; }
.hero-copy .subtitle { margin: 0 0 18px; color: var(--violet); font-size: clamp(23px, 3vw, 36px); font-weight: 800; line-height: 1.35; }
.hero-copy .lead { max-width: 680px; color: var(--muted); font-size: 17px; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--pink); font-size: 14px; font-weight: 800; letter-spacing: .12em; }
.section-kicker::before { content: ""; width: 34px; height: 3px; border-radius: 8px; background: linear-gradient(90deg, var(--pink), var(--cyan)); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 0; list-style: none; }
.hero-points li { padding: 8px 13px; border: 1px solid rgba(91,108,255,.16); border-radius: 999px; background: rgba(255,255,255,.78); color: var(--deep); font-size: 14px; }
.hero-visual { position: relative; min-height: 480px; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; inset: 9% 4%; border-radius: 44% 56% 64% 36% / 43% 38% 62% 57%; background: linear-gradient(145deg, rgba(91,108,255,.22), rgba(0,212,255,.14), rgba(217,79,112,.16)); filter: blur(2px); }
.hero-visual img { position: relative; z-index: 1; width: 100%; max-height: 520px; object-fit: contain; filter: drop-shadow(0 26px 34px rgba(25,43,91,.2)); }
.floating-chip { position: absolute; z-index: 2; padding: 12px 16px; border: 1px solid rgba(255,255,255,.75); border-radius: 18px; background: rgba(255,255,255,.8); backdrop-filter: blur(12px); box-shadow: var(--shadow); font-weight: 700; color: var(--deep); }
.chip-one { left: 2%; top: 18%; } .chip-two { right: 0; bottom: 17%; }
.section { padding: 82px 0; }
.section-sm { padding: 54px 0; }
.section-title-wrap { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-title-wrap h2, .section-heading { margin: 7px 0 0; color: var(--title); font-size: clamp(30px, 4vw, 48px); line-height: 1.2; letter-spacing: -.025em; }
.section-title-wrap p { max-width: 610px; margin: 0; color: var(--muted); }
.highlight-strip { position: relative; z-index: 3; margin-top: -26px; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); overflow: hidden; border: 1px solid rgba(91,108,255,.16); border-radius: 24px; background: #fff; box-shadow: var(--shadow); }
.highlight-item { padding: 24px; }
.highlight-item + .highlight-item { border-left: 1px solid rgba(91,108,255,.12); }
.highlight-item b { display: block; margin-bottom: 5px; color: var(--title); font-size: 17px; }
.highlight-item p { margin: 0; color: var(--muted); font-size: 14px; }
.pill-nav { display: flex; flex-wrap: wrap; gap: 10px; }
.pill-nav a { flex: 1 1 180px; min-height: 82px; padding: 16px 18px; border: 1px solid var(--border); border-radius: 20px; background: rgba(255,255,255,.78); text-decoration: none; box-shadow: 0 10px 28px rgba(25,43,91,.06); }
.pill-nav a:hover { transform: translateY(-2px); border-color: rgba(91,108,255,.42); }
.pill-nav strong { display: block; color: var(--title); }
.pill-nav small { display: block; margin-top: 4px; color: var(--muted); line-height: 1.55; }
.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: center; gap: 42px; }
.content-img { width: 100%; max-height: 500px; object-fit: contain; }
.media-frame { position: relative; padding: 24px; border: 1px solid var(--border); border-radius: 32px; background: linear-gradient(145deg, rgba(255,255,255,.95), rgba(234,247,255,.9)); box-shadow: var(--shadow); }
.media-frame::after { content: ""; position: absolute; width: 72px; height: 72px; right: 18px; top: 18px; border-radius: 50%; background: rgba(255,200,87,.2); }
.prose h2, .prose h3 { color: var(--title); }
.prose h2 { margin: 8px 0 18px; font-size: clamp(30px, 4vw, 46px); line-height: 1.25; }
.prose h3 { margin: 26px 0 8px; font-size: 21px; }
.prose p { color: var(--muted); }
.text-link { display: inline-flex; margin-top: 12px; color: var(--brand); text-decoration: none; font-weight: 800; }
.text-link:hover { text-decoration: underline; }
.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 24px; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.card { overflow: hidden; }
.card img, .zone-card img, .app-section img { width: 100%; height: 230px; object-fit: contain; background: linear-gradient(145deg, #f0f2ff, #f9fcff); }
.card-body { padding: 24px; }
.card-body h3 { margin: 0 0 8px; color: var(--title); font-size: 22px; }
.card-body p { margin: 0; color: var(--muted); }
.duo-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.zone-card { overflow: hidden; }
.zone-card .zone-content { padding: 28px; }
.zone-card h3 { margin: 0 0 10px; color: var(--title); font-size: 27px; }
.zone-card p { color: var(--muted); }
.service-list { display: grid; gap: 9px; padding: 0; list-style: none; }
.service-list li { position: relative; padding-left: 22px; color: var(--muted); }
.service-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 8px; border-radius: 50%; background: linear-gradient(135deg, var(--pink), var(--cyan)); }
.three-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.info-card { padding: 26px; }
.info-card .number { display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; background: linear-gradient(135deg, rgba(91,108,255,.14), rgba(0,212,255,.14)); color: var(--violet); font-weight: 900; }
.info-card h3 { margin: 16px 0 9px; color: var(--title); font-size: 22px; }
.info-card p { color: var(--muted); }
.dark-section { color: #eef2ff; background: radial-gradient(circle at 18% 20%, rgba(91,108,255,.28), transparent 32%), radial-gradient(circle at 82% 70%, rgba(0,212,255,.14), transparent 28%), #11182f; }
.dark-section .section-title-wrap h2, .dark-section .section-heading { color: #fff; }
.dark-section .section-title-wrap p, .dark-section .prose p { color: #b8c3db; }
.security-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: stretch; }
.security-copy { padding: 34px; border: 1px solid rgba(255,255,255,.12); border-radius: 28px; background: rgba(255,255,255,.06); }
.security-images { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.security-images img { width: 100%; height: 100%; min-height: 260px; object-fit: contain; border-radius: 24px; background: rgba(255,255,255,.06); }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.review-card { position: relative; padding: 26px; }
.review-card::before { content: "“"; position: absolute; right: 18px; top: 4px; color: rgba(91,108,255,.14); font-size: 66px; font-family: Georgia, serif; }
.review-card p { position: relative; margin: 0 0 16px; color: var(--muted); }
.review-card b { color: var(--title); }
.faq-list { display: grid; gap: 12px; }
.faq-list details { border: 1px solid var(--border); border-radius: 18px; background: #fff; box-shadow: 0 10px 24px rgba(25,43,91,.07); }
.faq-list summary { position: relative; padding: 20px 52px 20px 22px; cursor: pointer; color: var(--title); font-weight: 800; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 20px; top: 14px; font-size: 26px; color: var(--brand); }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { padding: 0 22px 20px; margin: 0; color: var(--muted); }
.notice-panel { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 22px; padding: 28px 32px; border: 1px solid rgba(255,200,87,.38); border-radius: 26px; background: linear-gradient(135deg, #fff9e8, #fff, #edfaff); box-shadow: var(--shadow); }
.notice-mark { display: grid; place-items: center; width: 60px; height: 60px; border-radius: 18px; background: #fff0c2; color: #9a6a00; font-size: 28px; font-weight: 900; }
.notice-panel h2 { margin: 0 0 4px; color: var(--title); font-size: 24px; }
.notice-panel p { margin: 0; color: var(--muted); }
.page-hero { padding: 72px 0 58px; overflow: hidden; background: radial-gradient(circle at 12% 28%, rgba(217,79,112,.15), transparent 30%), radial-gradient(circle at 88% 32%, rgba(0,212,255,.16), transparent 31%), linear-gradient(135deg, #f0f2ff, #fff8fb 54%, #ebfbff); }
.page-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: center; }
.page-hero h1 { margin: 10px 0 18px; color: var(--title); font-size: clamp(38px, 5vw, 62px); line-height: 1.15; }
.page-hero p { color: var(--muted); font-size: 17px; }
.page-hero img { width: 100%; max-height: 420px; object-fit: contain; filter: drop-shadow(0 22px 30px rgba(25,43,91,.17)); }
.badge-row { display: flex; flex-wrap: wrap; gap: 9px; margin: 20px 0 0; }
.badge { padding: 7px 12px; border: 1px solid rgba(91,108,255,.18); border-radius: 999px; background: rgba(255,255,255,.76); color: var(--violet); font-size: 13px; font-weight: 800; }
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 34px; align-items: start; }
.article-content { display: grid; gap: 26px; }
.article-section { padding: 30px; border: 1px solid var(--border); border-radius: 25px; background: #fff; box-shadow: 0 16px 36px rgba(25,43,91,.09); }
.article-section h2 { margin: 0 0 12px; color: var(--title); font-size: 28px; }
.article-section p { margin: 0 0 13px; color: var(--muted); }
.article-section p:last-child { margin-bottom: 0; }
.article-aside { position: sticky; top: 96px; display: grid; gap: 18px; }
.aside-card { padding: 24px; border: 1px solid var(--border); border-radius: 22px; background: #fff; box-shadow: 0 14px 32px rgba(25,43,91,.09); }
.aside-card h2 { margin: 0 0 12px; color: var(--title); font-size: 21px; }
.aside-card p, .aside-card li { color: var(--muted); font-size: 14px; }
.aside-card ul { padding-left: 20px; margin: 0; }
.step-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; counter-reset: steps; }
.step-card { position: relative; padding: 24px; border: 1px solid var(--border); border-radius: 22px; background: #fff; box-shadow: 0 12px 28px rgba(25,43,91,.07); counter-increment: steps; }
.step-card::before { content: counter(steps, decimal-leading-zero); display: block; margin-bottom: 12px; color: var(--violet); font-weight: 900; font-size: 26px; }
.step-card h3 { margin: 0 0 6px; color: var(--title); }
.step-card p { margin: 0; color: var(--muted); font-size: 14px; }
.cta-band { padding: 44px; border-radius: 30px; background: radial-gradient(circle at 85% 20%, rgba(0,212,255,.2), transparent 30%), linear-gradient(135deg, #151d3c, #252b59 55%, #182c4b); color: #eef2ff; box-shadow: var(--shadow); }
.cta-band h2 { margin: 0 0 8px; color: #fff; font-size: clamp(28px, 4vw, 42px); }
.cta-band p { max-width: 780px; color: #bdc8df; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.site-footer { padding: 66px 0 24px; background: #0b1024; color: #eef2ff; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 44px; }
.footer-grid h2 { margin: 0 0 14px; color: #fff; font-size: 17px; }
.footer-grid a:not(.main-btn):not(.site-logo) { display: block; margin: 8px 0; color: #aeb9d4; text-decoration: none; font-size: 14px; }
.footer-grid a:hover { color: #fff; }
.footer-brand p { max-width: 440px; color: #aeb9d4; }
.footer-logo { margin-bottom: 12px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 44px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); color: #8996b3; font-size: 13px; }
.footer-bottom p { margin: 0; }
.footer-bottom div { display: flex; gap: 16px; }
.footer-bottom a { color: #aeb9d4; text-decoration: none; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1080px) {
    .nav-core a { padding-inline: 8px; font-size: 14px; }
    .hero-grid { grid-template-columns: 1fr .85fr; gap: 34px; }
    .card-grid, .three-grid, .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .article-grid { grid-template-columns: 1fr 290px; }
    .step-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 900px) {
    .header-inner { width: min(calc(100% - 24px), 1280px); min-height: 66px; }
    .nav-core, .desktop-menu-toggle { display: none; }
    .mobile-menu-toggle { display: block; order: 1; }
    .site-logo { order: 2; position: absolute; left: 50%; transform: translateX(-50%); }
    .header-actions { order: 3; margin-left: auto; }
    .site-logo strong { display: none; }
    .site-logo img { max-width: 94px; max-height: 38px; }
    .header-cta { min-height: 40px; padding: 0 15px; font-size: 13px; }
    .hero { padding-top: 58px; }
    .hero-grid, .page-hero-grid, .split, .security-grid, .article-grid { grid-template-columns: 1fr; }
    .hero-copy { text-align: center; }
    .hero-copy .lead { margin-inline: auto; }
    .hero-actions, .hero-points { justify-content: center; }
    .hero-visual { min-height: 390px; }
    .highlight-grid { grid-template-columns: repeat(2, 1fr); }
    .highlight-item + .highlight-item { border-left: 0; }
    .highlight-item:nth-child(even) { border-left: 1px solid rgba(91,108,255,.12); }
    .highlight-item:nth-child(n+3) { border-top: 1px solid rgba(91,108,255,.12); }
    .section-title-wrap { align-items: start; flex-direction: column; }
    .article-aside { position: static; grid-template-columns: repeat(2, minmax(0,1fr)); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .container { width: min(calc(100% - 24px), var(--max)); }
    .section { padding: 60px 0; }
    .section-sm { padding: 42px 0; }
    .hero { padding: 48px 0 54px; }
    .hero-copy h1 { font-size: 52px; }
    .hero-copy .subtitle { font-size: 25px; }
    .hero-copy .lead { font-size: 15px; }
    .hero-visual { min-height: 330px; }
    .floating-chip { font-size: 12px; padding: 9px 12px; }
    .highlight-strip { margin-top: -14px; }
    .highlight-grid { grid-template-columns: 1fr; }
    .highlight-item, .highlight-item:nth-child(even), .highlight-item:nth-child(n+3) { border-left: 0; border-top: 1px solid rgba(91,108,255,.12); padding: 18px; }
    .highlight-item:first-child { border-top: 0; }
    .pill-nav a { flex-basis: 100%; min-height: auto; }
    .card-grid, .three-grid, .duo-grid, .review-grid, .article-aside, .step-grid, .footer-grid { grid-template-columns: 1fr; }
    .card img, .zone-card img { height: 210px; }
    .security-images { grid-template-columns: 1fr; }
    .security-images img { min-height: 220px; }
    .notice-panel { grid-template-columns: 1fr; text-align: left; padding: 24px; }
    .notice-panel .main-btn { width: 100%; }
    .page-hero { padding: 48px 0 44px; }
    .page-hero h1 { font-size: 38px; }
    .article-section { padding: 23px; }
    .cta-band { padding: 28px; }
    .footer-bottom { align-items: flex-start; flex-direction: column; }
    .site-footer { padding-bottom: 104px; }
    .mobile-bottom-nav { position: fixed; left: 10px; right: 10px; bottom: max(10px, env(safe-area-inset-bottom)); z-index: 9000; display: grid; grid-template-columns: repeat(4, 1fr); padding: 8px; border: 1px solid rgba(255,255,255,.65); border-radius: 22px; background: rgba(13,19,43,.94); backdrop-filter: blur(14px); box-shadow: 0 18px 40px rgba(10,15,35,.28); }
    .mobile-bottom-nav a { display: grid; justify-items: center; gap: 2px; color: #b9c3d9; text-decoration: none; font-size: 12px; }
    .mobile-bottom-nav span { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 10px; background: rgba(255,255,255,.08); color: #fff; font-weight: 800; }
    .mobile-bottom-nav a.active { color: #fff; }
    .mobile-bottom-nav a.active span { background: var(--gradient); }
}