:root {
  --bg: #F5F7FF;
  --nav: rgba(12,18,40,.94);
  --heading: #131A35;
  --primary: #5B6CFF;
  --deep: #16213E;
  --cyan: #00D4FF;
  --gold: #FFC857;
  --rose: #D94F70;
  --violet: #7A5CFF;
  --text: #1F2740;
  --muted: #66708A;
  --quiet: #9AA4BA;
  --card: #FFFFFF;
  --dark-card: #11182F;
  --border: rgba(91,108,255,.18);
  --shadow: 0 20px 46px rgba(25,43,91,.14);
  --radius: 24px;
  --container: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); 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: var(--primary); text-decoration: none; }
a:hover { color: var(--violet); }
img { max-width: 100%; height: auto; display: block; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 12000; background: #fff; color: var(--heading); padding: 10px 16px; border-radius: 10px; 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; margin: 0 auto; min-height: 72px; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.site-logo, .drawer-brand, .footer-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-size: 19px; white-space: nowrap; }
.site-logo img, .drawer-brand img, .footer-logo img { width: auto; max-width: 44px; max-height: 44px; object-fit: contain; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 8px; flex: 1; }
.nav-core a { color: #EEF2FF; 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: 10px; }
.main-btn, .secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 22px; border-radius: 999px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease; }
.main-btn { color: #fff; background: linear-gradient(135deg,#5B6CFF 0%,#7A5CFF 48%,#00D4FF 100%); box-shadow: 0 14px 32px rgba(91,108,255,.22); }
.main-btn:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 18px 36px rgba(91,108,255,.3); }
.secondary-btn { color: var(--primary); background: #fff; border: 1px solid var(--border); }
.menu-toggle { width: 44px; height: 44px; padding: 0; border: 0; border-radius: 14px; background: rgba(255,255,255,.1); display: inline-flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; cursor: pointer; }
.menu-toggle span { display: block; width: 19px; height: 2px; border-radius: 2px; background: #fff; }
.mobile-menu-toggle { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(3,7,20,.58); opacity: 0; visibility: hidden; transition: .25s ease; }
.drawer-overlay.is-open { opacity: 1; visibility: visible; }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(390px,88vw); height: 100vh; padding: 22px; background: #fff; box-shadow: -24px 0 54px rgba(13,24,56,.22); transform: translateX(105%); transition: transform .28s ease; overflow-y: auto; }
.site-drawer.is-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(--heading); }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: #EEF2FF; color: var(--heading); font-size: 27px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 20px 0; }
.drawer-nav a { padding: 10px 12px; border-radius: 12px; color: var(--text); background: #F7F8FF; }
.drawer-nav a:hover { background: #EDF0FF; color: var(--primary); }
.drawer-note { padding: 18px; border-radius: 18px; background: linear-gradient(135deg,#EFF8FF,#FFF4F8); }
.drawer-note p { margin: 8px 0 0; color: var(--muted); font-size: 14px; }
.container { width: min(var(--container), 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: 10px; color: var(--primary); font-size: 14px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.section-kicker::before { content: ""; width: 28px; height: 3px; border-radius: 3px; background: linear-gradient(90deg,var(--gold),var(--cyan)); }
h1, h2, h3, .section-title { color: var(--heading); line-height: 1.25; }
h1 { margin: 0 0 22px; font-size: clamp(42px,6vw,78px); letter-spacing: -.035em; }
h2 { margin: 0 0 18px; font-size: clamp(28px,3vw,44px); }
h3 { margin: 0 0 10px; font-size: 21px; }
p { margin: 0 0 16px; }
.lead { color: var(--muted); font-size: clamp(17px,2vw,20px); }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading.center { margin-left: auto; margin-right: auto; text-align: center; }
.hero { position: relative; overflow: hidden; padding: 84px 0 66px; background: radial-gradient(circle at 20% 20%,rgba(122,92,255,.18),transparent 35%), radial-gradient(circle at 85% 35%,rgba(0,212,255,.18),transparent 32%), linear-gradient(135deg,#F8F5FF 0%,#EEF8FF 55%,#FFF5FB 100%); }
.hero::after { content: ""; position: absolute; width: 420px; height: 420px; right: -160px; bottom: -230px; border-radius: 50%; background: rgba(255,200,87,.15); filter: blur(2px); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 52px; }
.hero-copy { max-width: 650px; }
.hero-title-line { display: block; color: var(--primary); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 22px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 0; list-style: none; }
.hero-points li { padding: 8px 13px; border-radius: 999px; color: var(--deep); background: rgba(255,255,255,.72); border: 1px solid rgba(91,108,255,.14); font-size: 14px; }
.hero-visual { position: relative; padding: 26px; border-radius: 34px; background: rgba(255,255,255,.58); border: 1px solid rgba(255,255,255,.9); box-shadow: 0 30px 70px rgba(35,50,108,.18); }
.hero-visual img { width: 100%; max-height: 580px; object-fit: contain; border-radius: 26px; }
.floating-note { position: absolute; left: -24px; bottom: 26px; max-width: 220px; padding: 14px 16px; border-radius: 18px; background: #fff; box-shadow: var(--shadow); font-size: 14px; }
.highlight-strip { position: relative; margin-top: -16px; z-index: 2; }
.highlight-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.highlight-item { padding: 20px; border-radius: 20px; background: #fff; border: 1px solid var(--border); box-shadow: 0 14px 34px rgba(25,43,91,.1); }
.highlight-item strong { display: block; color: var(--heading); margin-bottom: 5px; }
.highlight-item p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.pill-grid { display: flex; flex-wrap: wrap; gap: 12px; }
.channel-pill { flex: 1 1 210px; min-height: 110px; padding: 18px; border-radius: 20px; background: #fff; border: 1px solid var(--border); }
.channel-pill strong { display: block; color: var(--heading); margin-bottom: 6px; }
.channel-pill p { color: var(--muted); font-size: 14px; margin-bottom: 8px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.split.reverse .media { order: 2; }
.split.reverse .copy { order: 1; }
.media img { width: 100%; max-height: 520px; object-fit: contain; border-radius: 28px; background: #fff; box-shadow: var(--shadow); }
.card, .zone-card, .info-card, .review-card, .faq-item { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: var(--radius); }
.card, .zone-card, .info-card { padding: 26px; }
.zone-card img, .info-card img { width: 100%; max-height: 310px; object-fit: contain; margin-bottom: 20px; border-radius: 18px; background: #F7F9FF; }
.two-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 26px; }
.three-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.card-list { display: grid; gap: 12px; margin: 18px 0 0; padding: 0; list-style: none; }
.card-list li { position: relative; padding-left: 24px; color: var(--muted); }
.card-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--primary); font-weight: 900; }
.banner-row { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; margin-top: 22px; }
.banner-row img { width: 100%; max-height: 260px; object-fit: contain; border-radius: 22px; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.soft-section { background: linear-gradient(180deg,rgba(234,247,255,.72),rgba(245,247,255,0)); }
.dark-section { background: #11182F; color: #E9EEFF; }
.dark-section h2, .dark-section h3 { color: #fff; }
.dark-section .lead, .dark-section p { color: #C9D2EC; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.safety-panel { padding: 30px; border-radius: 26px; background: #fff; border: 1px solid var(--border); }
.safety-panel img { width: 100%; max-height: 280px; object-fit: contain; border-radius: 20px; margin-bottom: 20px; }
.review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.review-card { padding: 22px; }
.review-card p { margin: 0; color: var(--muted); }
.review-card strong { display: block; margin-top: 14px; color: var(--heading); font-size: 14px; }
.faq-list { display: grid; gap: 14px; }
.faq-item { padding: 22px 24px; }
.faq-item h3 { font-size: 18px; }
.faq-item p { color: var(--muted); margin-bottom: 0; }
.notice-box { padding: 26px; border-radius: 24px; background: linear-gradient(135deg,#FFF4D6,#EFF8FF); border: 1px solid rgba(255,200,87,.38); }
.text-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; }
.text-link::after { content: "→"; }
.page-hero { padding: 76px 0 54px; background: radial-gradient(circle at 80% 10%,rgba(0,212,255,.18),transparent 32%), linear-gradient(135deg,#F8F6FF,#EEF7FF); }
.page-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 40px; }
.page-hero h1 { font-size: clamp(38px,5vw,62px); }
.page-hero img { width: 100%; max-height: 430px; object-fit: contain; border-radius: 28px; background: rgba(255,255,255,.62); box-shadow: var(--shadow); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; color: var(--muted); font-size: 14px; }
.breadcrumb a { color: var(--primary); }
.content-stack { display: grid; gap: 24px; }
.content-section { padding: 30px; border-radius: 26px; background: #fff; border: 1px solid var(--border); box-shadow: 0 16px 40px rgba(25,43,91,.09); }
.content-section p:last-child { margin-bottom: 0; }
.steps { counter-reset: steps; display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.step { counter-increment: steps; position: relative; padding: 24px; border-radius: 22px; background: #fff; border: 1px solid var(--border); }
.step::before { content: "0" counter(steps); display: inline-flex; margin-bottom: 12px; color: var(--primary); font-weight: 900; font-size: 15px; }
.cta-band { padding: 36px; border-radius: 30px; background: linear-gradient(135deg,#16213E,#2C285B 55%,#135D75); color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: #D7DEEF; margin-bottom: 0; }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 64px 0 0; }
.footer-inner { width: min(var(--container),calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.05fr 1.95fr; gap: 48px; }
.footer-brand p { color: #AEB9D3; max-width: 440px; }
.footer-links { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.footer-links h2 { color: #fff; font-size: 16px; margin-bottom: 14px; }
.footer-links a { display: block; color: #BFC9DF; margin: 8px 0; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 44px; padding: 20px; border-top: 1px solid rgba(255,255,255,.1); text-align: center; color: #9BA8C3; font-size: 13px; }
.footer-bottom p { margin: 0; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1020px) {
  .nav-core { display: none; }
  .mobile-menu-toggle { display: inline-flex; }
  .desktop-menu-toggle { display: none; }
  .hero-grid, .page-hero-grid, .split { grid-template-columns: 1fr; }
  .hero-copy { max-width: none; }
  .hero-visual { max-width: 760px; margin: 0 auto; }
  .split.reverse .media, .split.reverse .copy { order: initial; }
  .highlight-grid { grid-template-columns: repeat(2,1fr); }
  .banner-row { grid-template-columns: 1fr; }
  .three-grid, .review-grid { grid-template-columns: repeat(2,1fr); }
  .footer-inner { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  body { padding-bottom: 70px; }
  .header-inner { min-height: 64px; padding: 0 12px; gap: 9px; }
  .site-logo strong { display: none; }
  .site-logo img { max-height: 38px; max-width: 38px; }
  .header-cta { min-height: 40px; padding: 8px 14px; font-size: 13px; }
  .menu-toggle { width: 40px; height: 40px; }
  .container { width: min(100% - 28px, var(--container)); }
  .section { padding: 62px 0; }
  .section-sm { padding: 42px 0; }
  .hero { padding: 58px 0 44px; }
  h1 { font-size: clamp(40px,14vw,58px); }
  .hero-actions { align-items: stretch; }
  .hero-actions .main-btn, .hero-actions .secondary-btn { flex: 1 1 140px; }
  .floating-note { position: static; margin-top: 12px; max-width: none; }
  .highlight-grid, .two-grid, .three-grid, .safety-grid, .review-grid, .steps { grid-template-columns: 1fr; }
  .channel-pill { flex-basis: 100%; }
  .content-section, .card, .zone-card, .info-card { padding: 22px; }
  .cta-band { padding: 26px; align-items: flex-start; flex-direction: column; }
  .footer-links { grid-template-columns: repeat(2,1fr); }
  .drawer-nav { grid-template-columns: 1fr; }
  .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: 7px; border-radius: 18px; background: rgba(11,16,36,.94); backdrop-filter: blur(12px); box-shadow: 0 16px 40px rgba(10,18,43,.3); }
  .mobile-bottom-nav a { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 48px; color: #E9EEFF; font-size: 11px; }
  .mobile-bottom-nav span { font-size: 18px; line-height: 1; margin-bottom: 4px; color: var(--cyan); }
}
@media (max-width: 420px) {
  .footer-links { grid-template-columns: 1fr; }
  .header-cta { padding-inline: 12px; }
}