:root {
  --bg: #F5F7FF;
  --ink: #1F2740;
  --ink-strong: #131A35;
  --muted: #66708A;
  --subtle: #9AA4BA;
  --brand: #5B6CFF;
  --brand-2: #7A5CFF;
  --blue: #00D4FF;
  --gold: #FFC857;
  --deep: #16213E;
  --nav: rgba(12,18,40,0.94);
  --card: #FFFFFF;
  --line: rgba(91,108,255,0.18);
  --shadow: 0 20px 46px rgba(25,43,91,0.14);
  --radius: 24px;
  --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(--ink); font-family: "PingFang SC", "Microsoft YaHei", 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; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 12000; background: #fff; color: var(--ink-strong); padding: 10px 16px; border-radius: 12px; transition: top .2s ease; }
.skip-link:focus { top: 12px; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.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% - 36px)); margin: 0 auto; min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; flex: 0 0 auto; }
.site-logo img { width: auto; max-width: 148px; max-height: 44px; display: block; object-fit: contain; }
.site-logo strong { font-size: 21px; letter-spacing: .06em; white-space: nowrap; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 8px; flex: 1; }
.nav-core a { color: #EEF2FF; text-decoration: none; border-radius: 999px; padding: 8px 12px; white-space: nowrap; font-size: 15px; }
.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: 10px; flex: 0 0 auto; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 22px; border-radius: 999px; background: var(--gradient); color: #fff; text-decoration: none; font-weight: 700; border: 0; box-shadow: 0 14px 32px rgba(91,108,255,0.22); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 38px rgba(91,108,255,0.30); }
.menu-toggle, .drawer-close { border: 0; cursor: pointer; }
.menu-toggle { width: 44px; height: 44px; border-radius: 14px; background: rgba(255,255,255,.10); display: inline-grid; place-content: center; gap: 4px; }
.menu-toggle span { width: 20px; height: 2px; background: #fff; border-radius: 2px; }
.mobile-menu-toggle { display: none; }
.drawer-overlay { position: fixed; inset: 0; background: rgba(3,8,24,.62); opacity: 0; visibility: hidden; transition: .25s ease; z-index: 10000; }
.drawer-overlay.is-open { opacity: 1; visibility: visible; }
.site-drawer { position: fixed; right: 0; top: 0; width: min(390px, 92vw); height: 100dvh; background: #fff; z-index: 10001; transform: translateX(105%); transition: transform .28s ease; padding: 24px; overflow-y: auto; box-shadow: -24px 0 64px rgba(12,18,40,.24); }
.site-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid #edf0fb; }
.drawer-head strong { display: block; font-size: 21px; color: var(--ink-strong); }
.drawer-close { width: 42px; height: 42px; border-radius: 50%; background: #f0f3ff; color: var(--ink-strong); font-size: 28px; line-height: 1; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; padding: 20px 0; }
.drawer-nav a { display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; border-radius: 14px; text-decoration: none; background: #F7F8FF; color: var(--ink-strong); border: 1px solid transparent; }
.drawer-nav a:hover, .drawer-nav a.active { border-color: var(--line); background: #EEF2FF; color: var(--brand); }
.drawer-nav b { color: var(--brand); }
.drawer-note { padding: 18px; border-radius: 18px; background: #EFF8FF; border: 1px solid #D9F3FF; }
.drawer-note strong { color: var(--ink-strong); }
.drawer-note p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.hero { position: relative; overflow: hidden; padding: 76px 0 62px; background: radial-gradient(circle at 10% 12%, rgba(255,200,87,.26), transparent 28%), radial-gradient(circle at 86% 18%, rgba(0,212,255,.25), transparent 28%), linear-gradient(145deg, #F5EEFF 0%, #EAF7FF 55%, #FFF5FB 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.hero::before { width: 230px; height: 230px; right: -70px; bottom: -60px; background: rgba(122,92,255,.12); }
.hero::after { width: 150px; height: 150px; left: 42%; top: -72px; background: rgba(0,212,255,.13); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 52px; }
.hero-copy h1 { margin: 8px 0 14px; font-size: clamp(44px, 7vw, 82px); line-height: 1.05; color: var(--ink-strong); letter-spacing: .04em; }
.hero-copy .hero-subtitle { margin: 0 0 18px; font-size: clamp(22px, 3vw, 34px); color: var(--deep); font-weight: 800; }
.hero-copy p { color: #4B5672; font-size: 17px; margin: 0; max-width: 680px; }
.section-kicker { color: #AF7600; font-weight: 800; letter-spacing: .12em; font-size: 13px; text-transform: uppercase; }
.hero-actions { display: flex; align-items: center; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.text-btn { display: inline-flex; align-items: center; gap: 6px; color: var(--brand); font-weight: 700; text-decoration: none; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.hero-points span { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.76); border: 1px solid rgba(91,108,255,.15); padding: 8px 13px; border-radius: 999px; color: var(--ink-strong); font-size: 14px; box-shadow: 0 10px 24px rgba(25,43,91,.08); }
.hero-visual { position: relative; }
.hero-visual img { width: 100%; max-height: 540px; display: block; object-fit: contain; filter: drop-shadow(0 26px 38px rgba(25,43,91,.22)); }
.floating-card { position: absolute; padding: 14px 16px; border: 1px solid rgba(255,255,255,.72); border-radius: 18px; background: rgba(255,255,255,.82); backdrop-filter: blur(10px); box-shadow: var(--shadow); }
.floating-card strong { display: block; color: var(--ink-strong); }
.floating-card small { color: var(--muted); }
.floating-card.one { left: -25px; bottom: 55px; }
.floating-card.two { right: -18px; top: 52px; }
.highlight-strip { margin-top: -26px; position: relative; z-index: 3; }
.highlight-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.highlight-item { background: rgba(255,255,255,.96); border: 1px solid var(--line); border-radius: 20px; box-shadow: 0 18px 38px rgba(25,43,91,.10); padding: 19px; }
.highlight-item strong { display: block; color: var(--ink-strong); font-size: 17px; }
.highlight-item p { margin: 5px 0 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.section { padding: 78px 0; }
.section.compact { padding: 54px 0; }
.section-alt { background: linear-gradient(180deg, rgba(234,247,255,.65), rgba(245,247,255,0)); }
.section-dark { background: #11182F; color: #EEF2FF; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 30px; }
.section-head.center { display: block; text-align: center; max-width: 760px; margin: 0 auto 34px; }
.section-head h2, .section-title { margin: 5px 0 0; color: var(--ink-strong); font-size: clamp(30px, 4vw, 48px); line-height: 1.2; }
.section-head p { margin: 0; color: var(--muted); max-width: 650px; }
.section-dark .section-head h2, .section-dark .section-title { color: #fff; }
.section-dark .section-head p { color: #BCC6DF; }
.card, .zone-card, .info-card, .review-card, .faq-item, .content-panel { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: var(--radius); }
.channel-pills { display: flex; flex-wrap: wrap; gap: 13px; }
.channel-pill { flex: 1 1 210px; min-height: 104px; display: block; padding: 16px 18px; background: #fff; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; box-shadow: 0 12px 30px rgba(25,43,91,.08); }
.channel-pill strong { color: var(--ink-strong); display: block; }
.channel-pill span { color: var(--muted); font-size: 13px; }
.split-section { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: center; }
.split-section.reverse .content-media { order: -1; }
.content-media { position: relative; }
.content-media img { width: 100%; max-height: 520px; object-fit: contain; border-radius: 28px; background: linear-gradient(145deg,#EEF3FF,#FDF6FF); padding: 14px; box-shadow: var(--shadow); }
.content-copy h2 { color: var(--ink-strong); font-size: clamp(30px,4vw,48px); line-height: 1.2; margin: 8px 0 18px; }
.content-copy p { color: var(--muted); }
.feature-list { display: grid; gap: 12px; margin: 24px 0; }
.feature-list div { display: grid; grid-template-columns: 38px 1fr; gap: 11px; align-items: start; }
.feature-list i { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; background: #EEF2FF; color: var(--brand); font-style: normal; font-weight: 800; }
.feature-list strong { display: block; color: var(--ink-strong); }
.feature-list span { color: var(--muted); font-size: 14px; }
.two-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.three-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.four-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.zone-card, .info-card { overflow: hidden; }
.zone-card img, .info-card img { width: 100%; aspect-ratio: 16/10; object-fit: contain; background: #F0F4FF; padding: 12px; }
.card-body { padding: 23px; }
.card-body h3 { color: var(--ink-strong); margin: 0 0 10px; font-size: 23px; }
.card-body p { margin: 0; color: var(--muted); }
.mini-points { margin: 17px 0 12px; padding: 0; list-style: none; display: grid; gap: 8px; }
.mini-points li { color: #4F5B76; padding-left: 20px; position: relative; }
.mini-points li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--gradient); position: absolute; left: 0; top: .73em; }
.text-link { display: inline-flex; color: var(--brand); text-decoration: none; font-weight: 700; margin-top: 15px; }
.safety-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.safety-card { position: relative; overflow: hidden; min-height: 340px; padding: 28px; border-radius: 28px; color: #fff; background: linear-gradient(135deg,#182345,#5B6CFF); box-shadow: var(--shadow); }
.safety-card:nth-child(2) { background: linear-gradient(135deg,#30215C,#7A5CFF 58%,#D94F70); }
.safety-card img { width: 46%; max-height: 220px; object-fit: contain; position: absolute; right: 10px; bottom: 10px; opacity: .98; }
.safety-card .copy { position: relative; z-index: 1; width: 62%; }
.safety-card h3 { font-size: 30px; margin: 8px 0 12px; }
.safety-card p { color: #E2E8FF; }
.safety-card a { color: #fff; font-weight: 700; }
.review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.review-card { padding: 22px; }
.review-card .stars { color: #E49800; letter-spacing: .15em; }
.review-card p { color: var(--muted); }
.review-card strong { color: var(--ink-strong); }
.faq-list { display: grid; gap: 14px; }
.faq-item { padding: 0 22px; box-shadow: 0 12px 30px rgba(25,43,91,.08); }
.faq-item details { padding: 18px 0; }
.faq-item summary { cursor: pointer; color: var(--ink-strong); font-weight: 800; list-style: none; padding-right: 30px; position: relative; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 0; top: 0; color: var(--brand); font-size: 24px; }
.faq-item details[open] summary::after { content: "−"; }
.faq-item p { color: var(--muted); margin-bottom: 0; }
.notice-bar { padding: 26px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 20px; border-radius: 26px; background: linear-gradient(135deg,#FFF4D6,#EFF8FF 60%,#F3EEFF); border: 1px solid rgba(255,200,87,.46); }
.notice-icon { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 18px; background: #fff; font-size: 26px; }
.notice-bar h2 { margin: 0; color: var(--ink-strong); }
.notice-bar p { margin: 4px 0 0; color: var(--muted); }
.inner-hero { padding: 64px 0 48px; background: radial-gradient(circle at 80% 12%,rgba(0,212,255,.22),transparent 27%), linear-gradient(145deg,#F2ECFF,#EAF7FF 60%,#FFF7FB); }
.inner-hero-grid { display: grid; grid-template-columns: 1fr .78fr; align-items: center; gap: 42px; }
.inner-hero h1 { color: var(--ink-strong); font-size: clamp(38px,6vw,64px); line-height: 1.1; margin: 8px 0 18px; }
.inner-hero p { color: #4F5B76; font-size: 17px; }
.inner-hero img { width: 100%; max-height: 380px; object-fit: contain; filter: drop-shadow(0 22px 34px rgba(25,43,91,.18)); }
.breadcrumbs { display: flex; gap: 8px; flex-wrap: wrap; font-size: 14px; color: var(--muted); margin-bottom: 12px; }
.breadcrumbs a { color: var(--brand); text-decoration: none; }
.content-layout { display: grid; grid-template-columns: minmax(0,1fr) 330px; gap: 28px; align-items: start; }
.article-stack { display: grid; gap: 22px; }
.content-panel { padding: 28px; }
.content-panel h2 { margin: 0 0 14px; color: var(--ink-strong); font-size: 29px; line-height: 1.3; }
.content-panel h3 { color: var(--ink-strong); }
.content-panel p { color: var(--muted); }
.content-panel p:last-child { margin-bottom: 0; }
.content-panel ul { padding-left: 20px; color: var(--muted); }
.side-stack { position: sticky; top: 98px; display: grid; gap: 18px; }
.side-card { padding: 22px; border-radius: 22px; background: #fff; border: 1px solid var(--line); box-shadow: 0 16px 34px rgba(25,43,91,.10); }
.side-card h2 { margin: 0 0 10px; font-size: 21px; color: var(--ink-strong); }
.side-card p, .side-card li { color: var(--muted); font-size: 14px; }
.side-card ul { margin: 0; padding-left: 18px; }
.side-card img { width: 100%; max-height: 220px; object-fit: contain; background: #F2F5FF; border-radius: 16px; }
.quick-links { display: grid; gap: 9px; }
.quick-links a { display: flex; justify-content: space-between; text-decoration: none; padding: 10px 12px; border-radius: 12px; background: #F7F8FF; color: var(--brand); }
.quote-box { margin-top: 20px; padding: 20px; background: #EFF8FF; border-left: 4px solid var(--blue); border-radius: 0 16px 16px 0; color: #4F5B76; }
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { counter-increment: step; display: grid; grid-template-columns: 44px 1fr; gap: 13px; align-items: start; }
.step::before { content: counter(step); width: 44px; height: 44px; display: grid; place-items: center; border-radius: 14px; background: var(--gradient); color: #fff; font-weight: 800; }
.step strong { color: var(--ink-strong); }
.step p { margin: 3px 0 0; }
.cta-panel { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 32px; border-radius: 28px; background: linear-gradient(135deg,#16213E,#5B6CFF 55%,#00A7D1); color: #fff; }
.cta-panel h2 { margin: 0 0 8px; font-size: 30px; }
.cta-panel p { margin: 0; color: #DCE4FF; }
.cta-panel .main-btn { background: #fff; color: var(--brand); flex: 0 0 auto; }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 64px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3,1fr); gap: 36px; }
.footer-grid h2 { margin: 0 0 14px; font-size: 18px; color: #fff; }
.footer-grid > div > a:not(.site-logo):not(.main-btn) { display: block; color: #B9C4DF; text-decoration: none; margin: 8px 0; }
.footer-grid > div > a:hover { color: #fff; }
.footer-brand p { color: #B9C4DF; max-width: 420px; }
.footer-logo { width: fit-content; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.10); margin-top: 38px; padding-top: 20px; display: flex; justify-content: space-between; gap: 20px; color: #98A4C0; font-size: 14px; }
.footer-bottom div { display: flex; gap: 16px; }
.footer-bottom a { color: #B9C4DF; text-decoration: none; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1080px) {
  .nav-core { gap: 2px; }
  .nav-core a { padding-inline: 8px; font-size: 14px; }
  .hero-grid { gap: 26px; }
  .four-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1.4fr repeat(3,1fr); gap: 22px; }
}
@media (max-width: 900px) {
  .nav-core, .desktop-menu-toggle { display: none; }
  .mobile-menu-toggle { display: inline-grid; }
  .header-inner { min-height: 66px; }
  .header-actions { margin-left: auto; }
  .hero-grid, .inner-hero-grid, .split-section, .content-layout { grid-template-columns: 1fr; }
  .hero { padding-top: 54px; }
  .hero-copy { text-align: center; }
  .hero-copy p { margin-inline: auto; }
  .hero-actions, .hero-points { justify-content: center; }
  .hero-visual { max-width: 650px; margin: 0 auto; }
  .highlight-grid { grid-template-columns: repeat(2,1fr); }
  .three-grid, .review-grid { grid-template-columns: repeat(2,1fr); }
  .safety-panel { grid-template-columns: 1fr; }
  .side-stack { position: static; grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 640px) {
  body { padding-bottom: 76px; }
  .container { width: min(100% - 28px, 1180px); }
  .header-inner { width: calc(100% - 20px); gap: 8px; }
  .site-logo strong { display: none; }
  .site-logo img { max-width: 108px; max-height: 38px; }
  .header-cta { min-height: 38px; padding-inline: 14px; font-size: 13px; }
  .menu-toggle { width: 40px; height: 40px; }
  .site-drawer { right: auto; left: 0; transform: translateX(-105%); padding: 20px; }
  .site-drawer.is-open { transform: translateX(0); }
  .drawer-nav { grid-template-columns: 1fr; }
  .hero { padding: 42px 0 50px; }
  .hero-copy h1 { font-size: 49px; }
  .hero-copy .hero-subtitle { font-size: 24px; }
  .hero-copy p { font-size: 15px; }
  .floating-card { position: static; margin: 10px auto; max-width: 230px; text-align: center; }
  .highlight-strip { margin-top: -18px; }
  .highlight-grid, .two-grid, .three-grid, .four-grid, .review-grid, .side-stack { grid-template-columns: 1fr; }
  .highlight-item { padding: 16px; }
  .section { padding: 56px 0; }
  .section.compact { padding: 40px 0; }
  .section-head { display: block; }
  .section-head h2, .content-copy h2 { font-size: 32px; }
  .channel-pill { border-radius: 22px; }
  .safety-card { min-height: 420px; }
  .safety-card .copy { width: 100%; }
  .safety-card img { width: 70%; opacity: .75; }
  .notice-bar { grid-template-columns: 1fr; text-align: center; }
  .notice-icon { margin: 0 auto; }
  .inner-hero { padding: 42px 0 36px; }
  .inner-hero h1 { font-size: 42px; }
  .content-panel { padding: 22px; }
  .cta-panel { display: block; padding: 26px; }
  .cta-panel .main-btn { margin-top: 18px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { display: block; }
  .footer-bottom div { margin-top: 12px; flex-wrap: wrap; }
  .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 9000; display: grid; grid-template-columns: repeat(4,1fr); padding: 8px 8px max(8px, env(safe-area-inset-bottom)); background: rgba(11,16,36,.96); backdrop-filter: blur(12px); box-shadow: 0 -10px 28px rgba(11,16,36,.2); }
  .mobile-bottom-nav a { display: grid; place-items: center; gap: 1px; color: #C4CEE8; text-decoration: none; font-size: 12px; border-radius: 12px; padding: 5px 3px; }
  .mobile-bottom-nav a span { font-size: 18px; line-height: 1; }
  .mobile-bottom-nav a.active { color: #fff; background: rgba(91,108,255,.28); }
}