:root {
    --bg: #F5F7FF;
    --nav: rgba(12,18,40,0.94);
    --title: #131A35;
    --primary: #5B6CFF;
    --deep: #16213E;
    --cyan: #00D4FF;
    --gold: #FFC857;
    --rose: #D94F70;
    --lavender: #7A5CFF;
    --text: #1F2740;
    --muted: #66708A;
    --soft: #9AA4BA;
    --card: #FFFFFF;
    --dark-card: #11182F;
    --border: rgba(91,108,255,0.18);
    --shadow: 0 20px 46px rgba(25,43,91,0.14);
    --gradient: linear-gradient(135deg, #5B6CFF 0%, #7A5CFF 48%, #00D4FF 100%);
    --radius: 24px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; 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; overflow-x: hidden; }
body.drawer-open { overflow: hidden; }
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font: inherit; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 20000; padding: 10px 16px; background: #fff; color: var(--title); border-radius: 12px; 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(25,43,91,0.16); }
.header-inner { width: min(1280px, calc(100% - 40px)); 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: 9px; text-decoration: none; color: #fff; min-width: 112px; }
.site-logo img { max-height: 44px; width: 44px; object-fit: contain; border-radius: 13px; }
.site-logo strong { font-size: 1.42rem; letter-spacing: .04em; }
.nav-core { display: flex; align-items: center; gap: 12px; }
.nav-core a { color: #EEF2FF; text-decoration: none; border-radius: 999px; padding: 8px 12px; white-space: nowrap; transition: .25s ease; }
.nav-core a:hover, .nav-core a.active { color: #fff; background: rgba(0,212,255,0.16); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 11px 24px; background: var(--gradient); color: #fff; border-radius: 999px; box-shadow: 0 14px 32px rgba(91,108,255,0.22); text-decoration: none; font-weight: 700; border: 0; transition: transform .25s ease, box-shadow .25s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 38px rgba(91,108,255,0.3); }
.compact-btn { min-height: 42px; padding: 8px 19px; }
.secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 10px 22px; border: 1px solid var(--border); color: var(--primary); background: #fff; border-radius: 999px; text-decoration: none; font-weight: 700; }
.menu-button { width: 44px; height: 44px; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; border-radius: 14px; border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.08); color: #fff; cursor: pointer; }
.menu-button span { width: 19px; height: 2px; border-radius: 999px; background: currentColor; }
.mobile-menu-button { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(5,8,22,.56); backdrop-filter: blur(3px); }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(390px, 90vw); height: 100dvh; padding: 24px; background: #fff; transform: translateX(105%); transition: transform .28s ease; box-shadow: -20px 0 60px rgba(11,16,36,.25); 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 { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--title); font-weight: 800; font-size: 1.3rem; }
.drawer-brand img { width: 42px; height: 42px; object-fit: contain; border-radius: 13px; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: #EFF2FF; color: var(--title); font-size: 1.7rem; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 22px 0; }
.drawer-nav a { padding: 11px 14px; text-decoration: none; color: var(--text); background: #F7F8FF; border: 1px solid transparent; border-radius: 14px; }
.drawer-nav a:hover, .drawer-nav a.active { color: var(--primary); border-color: var(--border); background: #EEF1FF; }
.drawer-note { padding: 18px; background: linear-gradient(135deg, #EFF8FF, #FFF4FB); border-radius: 18px; border: 1px solid var(--border); }
.drawer-note strong { color: var(--title); }
.drawer-note p { margin: 6px 0 0; color: var(--muted); font-size: .92rem; }
main { min-height: 60vh; }
.container { width: min(1200px, calc(100% - 40px)); margin: 0 auto; }
.narrow { width: min(880px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 88px 0; }
.section-sm { padding: 58px 0; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 12px; color: #7A5CFF; font-size: .88rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.section-kicker::before { content: ""; width: 28px; height: 3px; border-radius: 99px; background: linear-gradient(90deg, var(--gold), var(--cyan)); }
h1, h2, h3, .section-title { color: var(--title); line-height: 1.25; }
h1 { font-size: clamp(2.45rem, 6vw, 5.2rem); margin: 0 0 22px; letter-spacing: -.04em; }
h2 { font-size: clamp(1.75rem, 4vw, 2.65rem); margin: 0 0 18px; }
h3 { font-size: 1.2rem; margin: 0 0 10px; }
p { margin: 0 0 16px; }
.lead { font-size: clamp(1.06rem, 2vw, 1.25rem); color: var(--muted); }
.text-link { color: var(--primary); font-weight: 700; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.hero { position: relative; overflow: hidden; padding: 86px 0 72px; background: radial-gradient(circle at 15% 20%, rgba(122,92,255,.2), transparent 32%), radial-gradient(circle at 88% 18%, rgba(0,212,255,.16), transparent 28%), linear-gradient(135deg, #F7F4FF 0%, #EEF8FF 52%, #FFF5FB 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(4px); pointer-events: none; }
.hero::before { width: 240px; height: 240px; left: -80px; bottom: -80px; background: rgba(255,200,87,.18); }
.hero::after { width: 180px; height: 180px; right: 6%; top: 10%; background: rgba(217,79,112,.12); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 58px; }
.hero-badge { display: inline-flex; padding: 7px 13px; margin-bottom: 18px; color: var(--primary); background: rgba(91,108,255,.1); border: 1px solid var(--border); border-radius: 999px; font-weight: 700; }
.hero h1 span { display: block; margin-top: 10px; font-size: clamp(1.25rem, 3vw, 2.15rem); color: var(--deep); letter-spacing: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0 24px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-points span { padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,.78); border: 1px solid rgba(91,108,255,.12); color: var(--deep); font-size: .92rem; }
.hero-visual { position: relative; padding: 20px; }
.hero-visual img { width: 100%; max-height: 610px; object-fit: contain; filter: drop-shadow(0 28px 34px rgba(36,43,96,.2)); }
.floating-card { position: absolute; padding: 13px 16px; color: var(--title); background: rgba(255,255,255,.9); border: 1px solid rgba(255,255,255,.65); border-radius: 16px; box-shadow: var(--shadow); backdrop-filter: blur(12px); font-size: .9rem; }
.floating-card strong { display: block; }
.float-one { left: -12px; top: 20%; }
.float-two { right: 0; bottom: 12%; }
.highlight-strip { position: relative; margin-top: -28px; z-index: 3; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 26px; overflow: hidden; }
.highlight-item { padding: 24px; }
.highlight-item + .highlight-item { border-left: 1px solid var(--border); }
.highlight-item h3 { font-size: 1rem; }
.highlight-item p { color: var(--muted); font-size: .91rem; margin: 0; }
.pill-grid { display: flex; flex-wrap: wrap; gap: 12px; }
.channel-pill { flex: 1 1 205px; padding: 16px 18px; border-radius: 18px; background: #fff; border: 1px solid var(--border); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.channel-pill:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(25,43,91,.1); }
.channel-pill strong { display: block; color: var(--title); }
.channel-pill span { color: var(--muted); font-size: .9rem; }
.split { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 54px; }
.split.reverse .media { order: 2; }
.media-frame { position: relative; padding: 18px; background: linear-gradient(145deg, rgba(91,108,255,.13), rgba(0,212,255,.12)); border-radius: 30px; border: 1px solid var(--border); }
.media-frame img { width: 100%; max-height: 540px; object-fit: contain; border-radius: 20px; }
.content-list { display: grid; gap: 13px; margin: 24px 0; }
.content-list div { position: relative; padding-left: 28px; }
.content-list div::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--primary); font-weight: 900; }
.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: var(--radius); }
.card { padding: 28px; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card-grid.two { grid-template-columns: repeat(2, 1fr); }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.zone-card { overflow: hidden; }
.zone-card img { width: 100%; height: 250px; object-fit: contain; background: linear-gradient(145deg, #EFF8FF, #F8F3FF); }
.zone-card-body { padding: 26px; }
.zone-card p { color: var(--muted); }
.feature-list { margin: 17px 0 0; padding: 0; list-style: none; display: grid; gap: 9px; color: var(--muted); }
.feature-list li { padding-left: 22px; position: relative; }
.feature-list li::before { content: "•"; position: absolute; left: 3px; color: var(--cyan); font-size: 1.3rem; line-height: 1.1; }
.dark-section { background: #0E1530; color: #DCE5FF; }
.dark-section h2, .dark-section h3 { color: #fff; }
.dark-section .lead, .dark-section p { color: #AEB9D8; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.safety-card { display: grid; grid-template-columns: 150px 1fr; align-items: center; gap: 22px; padding: 24px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: 24px; }
.safety-card img { width: 150px; height: 150px; object-fit: contain; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-card { padding: 24px; }
.review-card p { color: var(--muted); }
.review-card strong { color: var(--title); }
.review-card .review-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; color: var(--soft); font-size: .88rem; }
.stars { color: var(--gold); letter-spacing: .12em; }
.faq-list { display: grid; gap: 14px; }
details { background: #fff; border: 1px solid var(--border); border-radius: 18px; 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: 13px; font-size: 1.4rem; color: var(--primary); }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); padding: 0 0 19px; }
.notice { padding: 28px; background: linear-gradient(135deg, #FFF4D6, #FFF7EF 48%, #F0F6FF); border: 1px solid rgba(255,200,87,.45); border-radius: 24px; }
.notice h2, .notice h3 { margin-top: 0; }
.about-band { background: linear-gradient(135deg, #5B6CFF, #7A5CFF 55%, #00BBD9); color: #fff; }
.about-band h2, .about-band p { color: #fff; }
.about-band .container { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.about-band .secondary-btn { border-color: rgba(255,255,255,.45); background: rgba(255,255,255,.12); color: #fff; }
.subhero { position: relative; overflow: hidden; padding: 78px 0 66px; background: radial-gradient(circle at 85% 20%, rgba(0,212,255,.16), transparent 27%), linear-gradient(135deg, #F2EEFF, #EFF8FF 58%, #FFF6F7); }
.subhero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 50px; }
.subhero h1 { font-size: clamp(2.4rem, 5vw, 4.3rem); }
.subhero img { width: 100%; max-height: 430px; object-fit: contain; filter: drop-shadow(0 24px 32px rgba(25,43,91,.18)); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; color: var(--muted); font-size: .92rem; }
.breadcrumbs a { color: var(--primary); text-decoration: none; }
.content-prose { font-size: 1.02rem; }
.content-prose p { color: #46506A; }
.info-band { padding: 30px; background: #fff; border: 1px solid var(--border); border-radius: 24px; box-shadow: var(--shadow); }
.steps { counter-reset: step; display: grid; gap: 17px; }
.step { counter-increment: step; position: relative; padding: 22px 22px 22px 74px; background: #fff; border: 1px solid var(--border); border-radius: 18px; }
.step::before { content: counter(step); position: absolute; left: 22px; top: 22px; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--gradient); color: #fff; font-weight: 900; }
.cta-box { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 34px; border-radius: 26px; color: #fff; background: linear-gradient(135deg, #16213E, #5B6CFF); }
.cta-box h2, .cta-box p { color: #fff; }
.cta-box p { opacity: .82; margin-bottom: 0; }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 58px 0 22px; }
.footer-inner { width: min(1200px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.15fr 1.85fr; gap: 58px; }
.footer-brand p { color: #AAB5D5; max-width: 480px; }
.footer-logo { margin-bottom: 18px; }
.footer-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.footer-links div { display: grid; align-content: start; gap: 9px; }
.footer-links strong { margin-bottom: 4px; color: #fff; }
.footer-links a { color: #AAB5D5; text-decoration: none; }
.footer-links a:hover { color: var(--cyan); }
.footer-bottom { width: min(1200px, calc(100% - 40px)); margin: 36px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; gap: 20px; color: #8490B2; font-size: .87rem; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1050px) {
    .nav-core { display: none; }
    .mobile-menu-button { display: inline-flex; }
    .desktop-menu-button { display: none; }
    .header-inner { gap: 12px; }
    .site-logo { min-width: auto; justify-content: center; }
    .hero-grid, .subhero-grid { grid-template-columns: 1fr; }
    .hero-copy { max-width: 760px; }
    .hero-visual, .subhero-visual { max-width: 680px; margin: 0 auto; }
    .highlight-grid { grid-template-columns: 1fr 1fr; }
    .highlight-item + .highlight-item { border-left: 0; }
    .highlight-item:nth-child(even) { border-left: 1px solid var(--border); }
    .highlight-item:nth-child(n+3) { border-top: 1px solid var(--border); }
    .card-grid, .review-grid { grid-template-columns: 1fr 1fr; }
    .card-grid.four { grid-template-columns: 1fr 1fr; }
    .footer-inner { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    body { padding-bottom: 74px; }
    .header-inner { width: min(100% - 24px, 1280px); min-height: 64px; }
    .site-logo strong { display: none; }
    .site-logo img { width: 40px; height: 40px; }
    .compact-btn { min-height: 38px; padding: 7px 14px; font-size: .88rem; }
    .menu-button { width: 40px; height: 40px; }
    .section { padding: 64px 0; }
    .section-sm { padding: 44px 0; }
    .container, .narrow { width: min(100% - 28px, 1200px); }
    .hero { padding: 58px 0 50px; }
    .hero-grid, .split, .subhero-grid { gap: 34px; }
    .split { grid-template-columns: 1fr; }
    .split.reverse .media { order: initial; }
    .hero-actions { display: grid; grid-template-columns: 1fr; }
    .main-btn, .secondary-btn { width: 100%; }
    .floating-card { position: static; display: inline-block; margin: 6px; }
    .highlight-strip { margin-top: 0; padding-top: 18px; }
    .highlight-grid { grid-template-columns: 1fr; }
    .highlight-item:nth-child(even) { border-left: 0; }
    .highlight-item + .highlight-item, .highlight-item:nth-child(n+3) { border-top: 1px solid var(--border); }
    .card-grid, .card-grid.two, .card-grid.four, .review-grid, .safety-grid { grid-template-columns: 1fr; }
    .safety-card { grid-template-columns: 100px 1fr; }
    .safety-card img { width: 100px; height: 100px; }
    .about-band .container, .cta-box { display: grid; }
    .footer-links { grid-template-columns: 1fr 1fr; }
    .footer-bottom { display: grid; }
    .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 9000; min-height: 66px; display: grid; grid-template-columns: repeat(4, 1fr); background: rgba(255,255,255,.96); border-top: 1px solid var(--border); backdrop-filter: blur(14px); padding-bottom: env(safe-area-inset-bottom); }
    .mobile-bottom-nav a { display: grid; place-items: center; align-content: center; gap: 1px; text-decoration: none; color: var(--muted); font-size: .78rem; }
    .mobile-bottom-nav a span { font-size: 1.05rem; }
    .mobile-bottom-nav a.active { color: var(--primary); font-weight: 800; }
    .drawer-nav { grid-template-columns: 1fr; }
}
@media (max-width: 420px) {
    h1 { font-size: 2.45rem; }
    .hero-points { display: grid; }
    .safety-card { grid-template-columns: 1fr; }
    .safety-card img { width: 130px; height: 130px; }
}