:root {
  --bg: #F5F7FF;
  --ink: #1F2740;
  --title: #131A35;
  --muted: #66708A;
  --soft: #9AA4BA;
  --brand: #5B6CFF;
  --brand-2: #7A5CFF;
  --blue: #00D4FF;
  --navy: #16213E;
  --gold: #FFC857;
  --rose: #D94F70;
  --card: #FFFFFF;
  --line: rgba(91,108,255,0.18);
  --shadow: 0 20px 46px rgba(25,43,91,0.14);
  --radius: 22px;
  --max: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}
body.drawer-open { overflow: hidden; }
a { color: var(--brand); }
img { max-width: 100%; height: auto; }
button, a { -webkit-tap-highlight-color: transparent; }
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 9999;
  background: rgba(12,18,40,0.94);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 26px rgba(25,43,91,0.16);
}
.header-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  min-height: 72px;
  display: grid;
  grid-template-columns: 190px 1fr 190px;
  align-items: center;
  gap: 24px;
}
.site-logo { display: inline-flex; align-items: center; width: fit-content; }
.site-logo img, .drawer-logo img { max-height: 44px; width: auto; display: block; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 10px; min-width: 0; }
.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: #FFFFFF; background: rgba(0,212,255,0.16); }
.header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 10px; }
.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  background: linear-gradient(135deg, #5B6CFF 0%, #7A5CFF 48%, #00D4FF 100%);
  color: #FFFFFF;
  border-radius: 999px;
  box-shadow: 0 14px 32px rgba(91,108,255,0.22);
  text-decoration: none;
  font-weight: 700;
  border: 0;
}
.main-btn:hover { transform: translateY(-1px); }
.secondary-btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 18px;
  border-radius: 999px; border: 1px solid var(--line); background: rgba(255,255,255,.82); color: var(--brand); text-decoration: none; font-weight: 700;
}
.menu-btn { width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.14); border-radius: 14px; background: rgba(255,255,255,.07); display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; cursor: pointer; }
.menu-btn span { width: 18px; height: 2px; border-radius: 2px; background: #fff; display: block; }
.menu-btn-mobile { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(7,11,28,.48); opacity: 0; transition: opacity .22s ease; }
.drawer-overlay.is-open { opacity: 1; }
.site-drawer {
  position: fixed; top: 0; right: 0; z-index: 10001; width: min(380px, 88vw); height: 100vh; padding: 22px; background: #fff; box-shadow: -24px 0 60px rgba(10,18,55,.22); transform: translateX(105%); transition: transform .24s ease; overflow-y: auto;
}
.site-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.drawer-close { border: 0; background: #EFF2FF; color: var(--title); border-radius: 999px; padding: 9px 14px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; }
.drawer-nav a { padding: 12px 13px; text-decoration: none; color: var(--ink); background: #F7F8FF; border: 1px solid var(--line); border-radius: 14px; }
.drawer-nav a:hover { color: var(--brand); background: #EEF1FF; }
.drawer-note { margin-top: 22px; padding: 16px; border-radius: 18px; background: #EFF8FF; }
.drawer-note strong { color: var(--title); }
.drawer-note p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
#main-content { min-height: 60vh; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.section { padding: 76px 0; }
.section-tight { padding: 46px 0; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; color: #8D6A00; background: #FFF4D6; border-radius: 999px; padding: 6px 12px; font-size: 13px; font-weight: 800; letter-spacing: .06em; }
.section-title { margin: 14px 0 12px; color: var(--title); font-size: clamp(28px, 4vw, 44px); line-height: 1.18; }
.section-lead { max-width: 760px; margin: 0; color: var(--muted); font-size: 17px; }
.text-link { color: var(--brand); font-weight: 700; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.hero {
  position: relative; overflow: hidden; padding: 84px 0 72px;
  background: radial-gradient(circle at 12% 18%, rgba(122,92,255,.20), transparent 34%), radial-gradient(circle at 84% 12%, rgba(0,212,255,.17), transparent 32%), linear-gradient(135deg,#F9F5FF 0%,#EEF8FF 48%,#FFF5FB 100%);
}
.hero::after { content:""; position:absolute; width:280px; height:280px; right:-120px; bottom:-120px; border-radius:50%; background: rgba(91,108,255,.10); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.03fr .97fr; gap: 54px; align-items: center; }
.hero h1 { margin: 12px 0 12px; font-size: clamp(48px, 7vw, 84px); line-height: .98; color: var(--title); letter-spacing: -.04em; }
.hero-subtitle { font-size: clamp(23px,3vw,34px); line-height: 1.25; color: var(--navy); font-weight: 800; margin-bottom: 20px; }
.hero-copy { color: var(--muted); font-size: 17px; max-width: 680px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 26px 0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-points span { padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,.82); border: 1px solid var(--line); color: var(--navy); font-size: 14px; }
.hero-visual { position: relative; padding: 18px; border-radius: 34px; background: rgba(255,255,255,.62); border: 1px solid rgba(255,255,255,.82); box-shadow: var(--shadow); }
.hero-visual img { width: 100%; height: auto; display: block; object-fit: contain; border-radius: 24px; }
.media-badge { position: absolute; left: -18px; bottom: 28px; padding: 12px 14px; background: #fff; border-radius: 16px; box-shadow: 0 14px 30px rgba(25,43,91,.16); color: var(--navy); font-weight: 800; }
.highlight-strip { margin-top: -22px; position: relative; z-index: 3; }
.highlight-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); overflow: hidden; }
.highlight-item { padding: 22px; }
.highlight-item + .highlight-item { border-left: 1px solid var(--line); }
.highlight-item h3 { margin: 0 0 5px; color: var(--title); font-size: 17px; }
.highlight-item p { margin: 0; color: var(--muted); font-size: 14px; }
.channel-scroll { display: flex; gap: 12px; overflow-x: auto; padding: 4px 2px 10px; scrollbar-width: thin; }
.channel-pill { min-width: 190px; padding: 14px 16px; border-radius: 18px; background: #fff; border: 1px solid var(--line); text-decoration: none; box-shadow: 0 8px 24px rgba(25,43,91,.08); }
.channel-pill strong { display: block; color: var(--title); margin-bottom: 4px; }
.channel-pill span { display: block; color: var(--muted); font-size: 13px; line-height: 1.55; }
.split-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.triple-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 22px; }
.card, .zone-card, .info-card, .review-card, .faq-card { background: #FFFFFF; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: var(--radius); }
.card { padding: 28px; }
.media-card { overflow: hidden; }
.media-card img { width: 100%; display: block; object-fit: contain; background: #EFF4FF; }
.media-card .card-body { padding: 26px; }
.card h2, .card h3, .zone-card h3, .info-card h3 { color: var(--title); margin-top: 0; }
.card p, .zone-card p, .info-card p { color: var(--muted); }
.feature-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.feature-list li { position: relative; padding-left: 22px; color: var(--ink); }
.feature-list li::before { content:""; position:absolute; left:0; top:.72em; width:8px; height:8px; border-radius:50%; background: linear-gradient(135deg,var(--brand),var(--blue)); }
.brand-band { background: #fff; }
.brand-grid { display: grid; grid-template-columns: 1fr .86fr; align-items: center; gap: 44px; }
.brand-grid img { border-radius: 26px; box-shadow: var(--shadow); width: 100%; object-fit: contain; }
.dark-zone { background: linear-gradient(135deg,#11182F,#16213E); color: #EEF2FF; }
.dark-zone .section-title, .dark-zone h2, .dark-zone h3 { color: #fff; }
.dark-zone p, .dark-zone .section-lead { color: #CCD4EE; }
.dark-zone .card { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.13); box-shadow: none; }
.dark-zone .card p, .dark-zone .feature-list li { color: #D8DFF6; }
.safety-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.safety-card { display: grid; grid-template-columns: 170px 1fr; gap: 24px; align-items: center; padding: 24px; }
.safety-card img { width: 100%; object-fit: contain; border-radius: 18px; background: #F5F7FF; }
.review-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.review-card { padding: 22px; }
.review-card p { margin: 0; color: var(--ink); }
.review-card span { display: block; margin-top: 12px; color: var(--soft); font-size: 13px; }
.faq-list { display: grid; gap: 14px; }
details.faq-card { padding: 0 20px; box-shadow: 0 10px 26px rgba(25,43,91,.08); }
details.faq-card summary { cursor: pointer; padding: 18px 0; font-weight: 800; color: var(--title); }
details.faq-card p { margin: 0; padding: 0 0 18px; color: var(--muted); }
.notice { padding: 24px; border-radius: 22px; background: linear-gradient(135deg,#FFF4D6,#EFF8FF); border: 1px solid rgba(91,108,255,.16); }
.notice h2, .notice h3 { color: var(--title); margin-top: 0; }
.notice p { color: var(--muted); margin-bottom: 0; }
.inner-hero { padding: 66px 0; background: linear-gradient(135deg,#F8F5FF 0%,#ECF8FF 52%,#FFF6FB 100%); }
.inner-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 42px; align-items: center; }
.inner-hero h1 { margin: 12px 0 16px; color: var(--title); font-size: clamp(38px,5vw,60px); line-height: 1.08; }
.inner-hero p { color: var(--muted); font-size: 17px; }
.inner-hero img { width: 100%; max-height: 430px; object-fit: contain; border-radius: 28px; background: rgba(255,255,255,.72); box-shadow: var(--shadow); }
.content-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; align-items: start; }
.prose { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; box-shadow: 0 18px 42px rgba(25,43,91,.10); }
.prose h2, .prose h3 { color: var(--title); margin: 28px 0 10px; line-height: 1.3; }
.prose h2:first-child { margin-top: 0; }
.prose p { color: var(--ink); margin: 0 0 16px; }
.side-stack { display: grid; gap: 18px; }
.info-card { padding: 24px; box-shadow: 0 12px 32px rgba(25,43,91,.09); }
.info-card img { width: 100%; object-fit: contain; border-radius: 16px; background: #F5F7FF; margin-bottom: 16px; }
.guide-steps { counter-reset: step; display: grid; gap: 14px; margin-top: 16px; }
.guide-step { counter-increment: step; position: relative; padding: 18px 18px 18px 58px; border-radius: 16px; border: 1px solid var(--line); background: #FAFBFF; }
.guide-step::before { content: counter(step); position: absolute; left: 17px; top: 17px; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg,var(--brand),var(--brand-2)); font-weight: 800; }
.guide-step strong { color: var(--title); }
.guide-step p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.cta-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 30px; border-radius: 26px; background: linear-gradient(135deg,#EDEEFF,#E9FAFF); border: 1px solid var(--line); }
.cta-band h2 { margin: 0 0 8px; color: var(--title); }
.cta-band p { margin: 0; color: var(--muted); }
.site-footer { background: #0B1024; color: #EEF2FF; margin-top: 70px; }
.footer-inner { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; padding: 54px 0 34px; display: grid; grid-template-columns: .9fr 1.4fr; gap: 50px; }
.footer-brand img { max-height: 46px; width: auto; }
.footer-brand p { color: #B7C0DA; max-width: 440px; }
.footer-links { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 24px; }
.footer-links strong { display: block; color: #fff; margin-bottom: 10px; }
.footer-links a { display: block; color: #BFC7DF; text-decoration: none; padding: 3px 0; }
.footer-links a:hover { color: #fff; }
.footer-bottom { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; padding: 20px 0 30px; border-top: 1px solid rgba(255,255,255,.10); display: flex; justify-content: space-between; gap: 28px; color: #939FBE; font-size: 13px; }
.footer-bottom p { margin: 0; }
.footer-bottom p:first-child { max-width: 880px; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1080px) {
  .header-inner { grid-template-columns: 150px 1fr 150px; gap: 14px; }
  .nav-core { gap: 2px; }
  .nav-core a { padding-inline: 9px; font-size: 14px; }
  .header-cta { padding-inline: 14px; }
  .hero-grid, .brand-grid, .inner-hero-grid { gap: 32px; }
  .review-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 860px) {
  .header-inner { width: min(100% - 24px, var(--max)); grid-template-columns: 48px 1fr auto; min-height: 64px; }
  .site-logo { justify-self: center; }
  .site-logo img { max-height: 38px; }
  .nav-core, .menu-btn-desktop { display: none; }
  .menu-btn-mobile { display: inline-flex; }
  .header-actions { justify-self: end; }
  .header-cta { min-height: 40px; padding: 8px 14px; font-size: 14px; }
  .hero { padding-top: 54px; }
  .hero-grid, .brand-grid, .inner-hero-grid, .content-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 680px; }
  .highlight-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .highlight-item:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .highlight-item:nth-child(4) { border-top: 1px solid var(--line); }
  .split-grid, .safety-grid { grid-template-columns: 1fr; }
  .triple-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}
@media (max-width: 620px) {
  .container { width: min(100% - 28px, var(--max)); }
  .section { padding: 56px 0; }
  .section-tight { padding: 36px 0; }
  .hero h1 { font-size: 52px; }
  .hero-subtitle { font-size: 25px; }
  .hero-copy, .inner-hero p { font-size: 16px; }
  .media-badge { left: 8px; bottom: 18px; font-size: 13px; }
  .highlight-strip { margin-top: -12px; }
  .highlight-grid { grid-template-columns: 1fr; }
  .highlight-item + .highlight-item { border-left: 0; border-top: 1px solid var(--line); }
  .triple-grid, .review-grid { grid-template-columns: 1fr; }
  .safety-card { grid-template-columns: 1fr; }
  .prose, .card { padding: 23px; }
  .cta-band { align-items: flex-start; flex-direction: column; }
  .footer-links { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .site-footer { margin-top: 54px; }
  .footer-inner { width: min(100% - 28px, var(--max)); padding-bottom: 24px; }
  .footer-bottom { width: min(100% - 28px, var(--max)); padding-bottom: 92px; }
  .mobile-bottom-nav { position: fixed; left: 12px; right: 12px; bottom: 10px; z-index: 9000; display: grid; grid-template-columns: repeat(4,1fr); background: rgba(11,16,36,.94); backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,.12); box-shadow: 0 14px 34px rgba(8,12,30,.28); border-radius: 18px; padding: 6px; }
  .mobile-bottom-nav a { color: #DDE4FF; text-decoration: none; text-align: center; padding: 8px 4px; border-radius: 12px; font-size: 13px; }
  .mobile-bottom-nav a:hover { background: rgba(255,255,255,.08); color: #fff; }
  .drawer-nav { grid-template-columns: 1fr; }
}