:root {
    --bg: #F5F7FF;
    --nav: rgba(12,18,40,.94);
    --title: #131A35;
    --brand: #5B6CFF;
    --deep: #16213E;
    --cyan: #00D4FF;
    --gold: #FFC857;
    --rose: #D94F70;
    --lavender: #7A5CFF;
    --text: #1F2740;
    --muted: #66708A;
    --soft: #9AA4BA;
    --card: #FFFFFF;
    --dark-card: #11182F;
    --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%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif; line-height: 1.75; overflow-x: hidden; }
body.drawer-open { overflow: hidden; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--lavender); }
img { display: block; max-width: 100%; height: auto; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 12000; padding: 10px 16px; border-radius: 12px; background: #fff; color: var(--title); box-shadow: var(--shadow); }
.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 { max-width: 1280px; min-height: 72px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.site-logo, .footer-logo, .drawer-brand { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-weight: 800; letter-spacing: .04em; }
.site-logo img, .footer-logo img, .drawer-brand img { width: auto; max-height: 44px; object-fit: contain; }
.nav-core { display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.nav-core a { color: #EEF2FF; border-radius: 999px; padding: 8px 12px; font-size: 15px; }
.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 { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 24px; border-radius: 999px; background: var(--gradient); color: #fff; font-weight: 700; box-shadow: 0 14px 32px rgba(91,108,255,.22); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 18px 38px rgba(91,108,255,.28); }
.secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 22px; border-radius: 999px; background: #fff; color: var(--brand); border: 1px solid var(--border); font-weight: 700; }
.menu-trigger { width: 44px; height: 44px; border: 0; border-radius: 50%; background: rgba(255,255,255,.1); display: grid; place-content: center; gap: 4px; cursor: pointer; }
.menu-trigger span { width: 18px; height: 2px; border-radius: 999px; background: #fff; }
.mobile-menu-trigger { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(5,9,24,.52); opacity: 0; transition: opacity .22s ease; }
.drawer-overlay.show { opacity: 1; }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(390px, 92vw); height: 100vh; padding: 24px; background: #fff; box-shadow: -24px 0 60px rgba(10,20,50,.24); transform: translateX(104%); transition: transform .26s ease; overflow-y: auto; }
.site-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.drawer-brand { color: var(--title); }
.drawer-brand img { max-height: 40px; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: #EFF2FF; color: var(--title); font-size: 28px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; margin: 20px 0; }
.drawer-nav a { padding: 12px 14px; border-radius: 14px; background: #F5F7FF; color: var(--text); font-weight: 650; }
.drawer-nav a:hover, .drawer-nav a.active { background: linear-gradient(135deg, rgba(91,108,255,.13), rgba(0,212,255,.13)); color: var(--brand); }
.drawer-note { padding: 18px; border-radius: 18px; background: #FFF9E8; color: var(--muted); }
.drawer-note strong { color: var(--title); }
.drawer-note p { margin: 8px 0 0; }
.container { width: min(1200px, calc(100% - 40px)); margin: 0 auto; }
main { min-height: 60vh; }
.section { padding: 88px 0; }
.section-sm { padding: 58px 0; }
.section-head { max-width: 760px; margin-bottom: 32px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; color: #8A6500; background: #FFF4D6; border-radius: 999px; padding: 6px 12px; font-size: 14px; font-weight: 800; letter-spacing: .06em; }
h1, h2, h3, .section-title { color: var(--title); line-height: 1.26; margin-top: 0; }
h1 { font-size: clamp(42px, 7vw, 84px); letter-spacing: -.04em; }
h2 { font-size: clamp(28px, 4vw, 46px); }
h3 { font-size: 22px; }
p { margin-top: 0; }
.lead { font-size: clamp(17px, 2vw, 20px); color: var(--muted); }
.muted { color: var(--muted); }
.text-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 750; color: var(--brand); }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.hero { position: relative; padding: 86px 0 70px; background: radial-gradient(circle at 12% 15%, rgba(122,92,255,.18), transparent 32%), radial-gradient(circle at 86% 18%, rgba(0,212,255,.18), transparent 31%), linear-gradient(135deg, #F9F7FF 0%, #EEF7FF 50%, #FFF5FB 100%); overflow: hidden; }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(4px); pointer-events: none; }
.hero::before { width: 220px; height: 220px; left: -70px; bottom: -80px; background: rgba(255,200,87,.17); }
.hero::after { width: 160px; height: 160px; right: 5%; top: 10%; background: rgba(217,79,112,.10); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; gap: 54px; align-items: center; }
.hero-copy { max-width: 650px; }
.hero-copy .section-kicker { margin-bottom: 18px; }
.hero-copy h1 { margin-bottom: 10px; }
.hero-subtitle { font-size: clamp(25px, 3.5vw, 42px); color: var(--deep); font-weight: 800; margin-bottom: 20px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero-points span { padding: 8px 13px; border-radius: 999px; background: rgba(255,255,255,.72); border: 1px solid rgba(91,108,255,.14); color: var(--deep); font-weight: 700; font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual img { width: 100%; max-height: 620px; object-fit: contain; filter: drop-shadow(0 30px 45px rgba(34,44,101,.2)); }
.floating-card { position: absolute; padding: 14px 16px; border-radius: 18px; background: rgba(255,255,255,.88); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,.8); box-shadow: var(--shadow); color: var(--title); font-weight: 800; }
.floating-card.one { left: -12px; top: 14%; }
.floating-card.two { right: -10px; bottom: 12%; }
.highlight-strip { margin-top: -24px; position: relative; z-index: 2; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-radius: 24px; overflow: hidden; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.highlight-item { padding: 25px; border-right: 1px solid var(--border); }
.highlight-item:last-child { border-right: 0; }
.highlight-item h2 { font-size: 19px; margin-bottom: 8px; }
.highlight-item p { margin: 0; color: var(--muted); font-size: 14px; }
.channel-pills { display: flex; flex-wrap: wrap; gap: 12px; }
.channel-pill { flex: 1 1 210px; padding: 16px 18px; border: 1px solid var(--border); border-radius: 18px; background: rgba(255,255,255,.86); }
.channel-pill strong { display: block; color: var(--title); margin-bottom: 4px; }
.channel-pill span { display: block; color: var(--muted); font-size: 14px; min-height: 50px; }
.channel-pill a { font-weight: 750; }
.split { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 28px; align-items: stretch; }
.media-copy { display: grid; grid-template-columns: .92fr 1.08fr; gap: 38px; align-items: center; }
.media-copy.reverse { grid-template-columns: 1.08fr .92fr; }
.media-copy.reverse .media-image { order: 2; }
.media-image, .card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 22px; }
.media-image { padding: 16px; overflow: hidden; }
.media-image img { width: 100%; max-height: 520px; object-fit: contain; border-radius: 16px; }
.card, .zone-card, .info-card, .review-card { padding: 26px; }
.card img, .zone-card img, .info-card img { width: 100%; max-height: 320px; object-fit: contain; border-radius: 16px; margin-bottom: 20px; background: #F4F7FF; }
.card p:last-child, .zone-card p:last-child { margin-bottom: 0; }
.card-list { display: grid; gap: 10px; margin: 18px 0; padding: 0; list-style: none; }
.card-list li { position: relative; padding-left: 22px; color: var(--muted); }
.card-list li::before { content: ""; position: absolute; left: 0; top: .78em; width: 8px; height: 8px; border-radius: 50%; background: var(--gradient); }
.three-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 24px; }
.four-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 20px; }
.dark-band { position: relative; background: linear-gradient(135deg, #11182F, #16213E 62%, #1A2956); color: #EEF2FF; overflow: hidden; }
.dark-band h2, .dark-band h3 { color: #fff; }
.dark-band .lead, .dark-band p { color: #C9D2EB; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.safety-card { padding: 28px; border-radius: 24px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); }
.safety-card img { width: 100%; max-height: 300px; object-fit: contain; border-radius: 18px; margin-bottom: 20px; background: rgba(255,255,255,.06); }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; }
.review-card blockquote { margin: 0 0 16px; color: var(--text); }
.review-card cite { color: var(--muted); font-style: normal; font-weight: 700; }
.faq-list { display: grid; gap: 14px; }
details { border-radius: 18px; background: #fff; border: 1px solid var(--border); box-shadow: 0 10px 28px rgba(25,43,91,.08); padding: 0 20px; }
summary { cursor: pointer; list-style: none; padding: 18px 34px 18px 0; color: var(--title); font-weight: 800; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; top: 12px; font-size: 27px; color: var(--brand); }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); padding: 0 0 18px; margin: 0; }
.notice-box { padding: 28px; border-radius: 24px; background: linear-gradient(135deg, #FFF4D6, #EFF8FF); border: 1px solid rgba(255,200,87,.35); }
.notice-box h2 { font-size: 26px; }
.page-hero { padding: 72px 0 56px; background: radial-gradient(circle at 85% 10%, rgba(0,212,255,.17), transparent 28%), linear-gradient(135deg, #F9F7FF, #EEF8FF 54%, #FFF7FB); }
.page-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 42px; }
.page-hero h1 { font-size: clamp(38px, 6vw, 68px); margin-bottom: 16px; }
.page-hero img { width: 100%; max-height: 470px; object-fit: contain; filter: drop-shadow(0 26px 42px rgba(31,45,102,.18)); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.breadcrumbs a { color: var(--brand); }
.content-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(280px, .72fr); gap: 30px; align-items: start; }
.article-card { padding: 34px; background: #fff; border: 1px solid var(--border); border-radius: 24px; box-shadow: var(--shadow); }
.article-card h2 { font-size: 30px; margin-top: 34px; }
.article-card h2:first-child { margin-top: 0; }
.article-card p { color: #46516D; }
.article-card ul { padding-left: 22px; color: #46516D; }
.article-card li { margin-bottom: 8px; }
.sidebar { display: grid; gap: 20px; position: sticky; top: 98px; }
.sidebar-card { padding: 24px; border-radius: 22px; background: #fff; border: 1px solid var(--border); box-shadow: 0 15px 34px rgba(25,43,91,.1); }
.sidebar-card h2 { font-size: 22px; }
.sidebar-card a { display: block; padding: 8px 0; border-bottom: 1px dashed rgba(91,108,255,.2); font-weight: 700; }
.sidebar-card a:last-child { border-bottom: 0; }
.quote-box { margin: 26px 0; padding: 22px; border-radius: 18px; background: #EFF8FF; border-left: 4px solid var(--cyan); color: var(--deep); }
.steps { display: grid; counter-reset: step; gap: 16px; }
.step { position: relative; padding: 20px 20px 20px 72px; border-radius: 18px; background: #F8F9FF; border: 1px solid var(--border); }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 20px; top: 20px; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--gradient); color: #fff; font-weight: 900; }
.mini-reviews { display: grid; gap: 14px; }
.mini-review { padding: 18px; border-radius: 16px; background: #FFF9E8; color: var(--muted); }
.service-table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.service-table th, .service-table td { text-align: left; padding: 14px; border: 1px solid var(--border); vertical-align: top; }
.service-table th { background: #F1F4FF; color: var(--title); }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 64px 0 26px; }
.footer-grid { width: min(1200px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.5fr repeat(3,1fr); gap: 34px; }
.footer-grid h2 { color: #fff; font-size: 17px; }
.footer-grid a { display: block; color: #C8D1EC; padding: 5px 0; }
.footer-grid a:hover { color: #fff; }
.footer-brand p { color: #AEB9D7; max-width: 440px; }
.footer-bottom { width: min(1200px, calc(100% - 40px)); margin: 38px auto 0; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 24px; align-items: center; }
.footer-bottom p { margin: 0; color: #9FAAC9; font-size: 14px; }
.footer-bottom div { display: flex; gap: 16px; white-space: nowrap; }
.footer-bottom a { color: #C8D1EC; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1050px) {
    .nav-core { display: none; }
    .mobile-menu-trigger { display: grid; }
    .site-logo { margin-right: auto; }
    .hero-grid, .page-hero-grid, .media-copy, .media-copy.reverse { grid-template-columns: 1fr; }
    .media-copy.reverse .media-image { order: 0; }
    .hero-copy { max-width: none; }
    .hero-visual { max-width: 720px; margin: 0 auto; }
    .highlight-grid { grid-template-columns: repeat(2, 1fr); }
    .highlight-item:nth-child(2) { border-right: 0; }
    .highlight-item:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
    .three-grid, .review-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .four-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .footer-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 760px) {
    body { padding-bottom: 72px; }
    .header-inner { min-height: 64px; padding: 0 14px; gap: 10px; }
    .desktop-menu-trigger { display: none; }
    .mobile-menu-trigger { flex: 0 0 auto; }
    .site-logo { margin: 0; position: absolute; left: 50%; transform: translateX(-50%); }
    .site-logo span { display: none; }
    .site-logo img { max-height: 38px; }
    .header-actions { margin-left: auto; }
    .header-cta { min-height: 38px; padding: 0 15px; font-size: 13px; }
    .menu-trigger { width: 40px; height: 40px; }
    .container { width: min(100% - 28px, 1200px); }
    .hero { padding: 58px 0 52px; }
    .hero-grid { gap: 34px; }
    .hero-copy h1 { font-size: 50px; }
    .hero-subtitle { font-size: 28px; }
    .floating-card { font-size: 13px; padding: 10px 12px; }
    .highlight-strip { margin-top: 18px; }
    .highlight-grid, .split, .three-grid, .four-grid, .review-grid, .safety-grid, .content-grid { grid-template-columns: 1fr; }
    .highlight-item { border-right: 0; border-bottom: 1px solid var(--border); }
    .highlight-item:last-child { border-bottom: 0; }
    .section { padding: 62px 0; }
    .section-sm { padding: 42px 0; }
    .card, .zone-card, .info-card, .review-card, .article-card { padding: 22px; }
    .sidebar { position: static; }
    .page-hero { padding: 52px 0 42px; }
    .page-hero-grid { gap: 28px; }
    .drawer-nav { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 9998; display: grid; grid-template-columns: repeat(4,1fr); min-height: 64px; padding-bottom: env(safe-area-inset-bottom); background: rgba(11,16,36,.96); backdrop-filter: blur(12px); box-shadow: 0 -8px 24px rgba(18,28,66,.18); }
    .mobile-bottom-nav a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; color: #B8C2DE; font-size: 12px; }
    .mobile-bottom-nav a span { font-size: 20px; line-height: 1; }
    .mobile-bottom-nav a.active { color: #fff; background: rgba(91,108,255,.18); }
    .service-table { display: block; overflow-x: auto; }
}
@media (max-width: 460px) {
    .hero-copy h1 { font-size: 44px; }
    .hero-actions { display: grid; }
    .main-btn, .secondary-btn { width: 100%; }
    .header-cta { width: auto; }
    .channel-pill { flex-basis: 100%; }
}