:root {
  --bg: #F5F7FF; --nav: rgba(12,18,40,.94); --title: #131A35; --brand: #5B6CFF;
  --deep: #16213E; --cyan: #00D4FF; --gold: #FFC857; --rose: #D94F70;
  --text: #1F2740; --muted: #66708A; --soft: #9AA4BA; --card: #FFFFFF;
  --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: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; line-height: 1.78; overflow-x: hidden; }
body.drawer-open { overflow: hidden; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: #3346ef; }
img { max-width: 100%; height: auto; display: block; }
button, a { -webkit-tap-highlight-color: transparent; }
.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 { display: inline-flex; align-items: center; gap: 10px; color: #fff; white-space: nowrap; }
.site-logo:hover { color: #fff; }
.site-logo img { width: 42px; height: 42px; object-fit: contain; border-radius: 12px; }
.site-logo strong { font-size: 20px; letter-spacing: .04em; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 6px; flex: 1; }
.nav-core a { color: #EEF2FF; padding: 8px 12px; border-radius: 999px; 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 { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 24px; border-radius: 999px; background: var(--gradient); color: #fff; font-weight: 700; box-shadow: 0 14px 32px rgba(91,108,255,.22); }
.main-btn:hover { color: #fff; transform: translateY(-1px); }
.main-btn.compact { min-height: 40px; padding: 0 18px; font-size: 14px; }
.secondary-btn { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 22px; border-radius: 999px; border: 1px solid rgba(91,108,255,.28); background: rgba(255,255,255,.82); font-weight: 700; }
.menu-toggle { width: 42px; height: 42px; border: 0; border-radius: 50%; background: rgba(255,255,255,.1); display: inline-grid; place-content: center; gap: 4px; cursor: pointer; }
.menu-toggle span { width: 17px; height: 2px; background: #fff; border-radius: 2px; }
.mobile-menu-toggle { display: none; }
.drawer-mask { position: fixed; inset: 0; background: rgba(5,10,29,.5); opacity: 0; visibility: hidden; z-index: 10000; transition: .25s ease; }
.site-drawer { position: fixed; top: 0; right: 0; width: min(390px, 90vw); height: 100vh; padding: 22px; background: #11182F; color: #EEF2FF; z-index: 10001; transform: translateX(105%); transition: .28s ease; overflow-y: auto; }
.drawer-open .drawer-mask { opacity: 1; visibility: visible; }
.drawer-open .site-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.drawer-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 20px; }
.drawer-brand img { width: 42px; height: 42px; object-fit: contain; border-radius: 12px; }
.drawer-close { border: 0; background: rgba(255,255,255,.1); color: #fff; width: 42px; height: 42px; border-radius: 50%; font-size: 28px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.drawer-nav a { color: #EEF2FF; border: 1px solid rgba(255,255,255,.1); background: rgba(255,255,255,.055); border-radius: 14px; padding: 12px 14px; }
.drawer-nav a:hover { background: rgba(0,212,255,.12); }
.drawer-note { margin-top: 22px; padding: 16px; border-radius: 16px; background: rgba(255,200,87,.1); color: #f7e9c2; font-size: 13px; }
main { min-height: 60vh; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.hero { position: relative; overflow: hidden; padding: 88px 0 70px; background: radial-gradient(circle at 15% 15%,rgba(122,92,255,.2),transparent 30%), radial-gradient(circle at 90% 20%,rgba(0,212,255,.18),transparent 30%), linear-gradient(145deg,#f7f3ff 0%,#edf7ff 55%,#fff8fc 100%); }
.hero::after { content: ""; position: absolute; width: 340px; height: 340px; border-radius: 50%; border: 55px solid rgba(91,108,255,.07); right: -130px; bottom: -160px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 60px; position: relative; z-index: 1; }
.hero-copy h1 { margin: 8px 0 20px; color: var(--title); font-size: clamp(46px, 7vw, 82px); line-height: 1.08; letter-spacing: -.04em; }
.hero-copy .lead { font-size: clamp(22px, 3vw, 34px); color: #394366; font-weight: 700; margin: 0 0 18px; }
.hero-copy p { color: #56617e; max-width: 720px; }
.eyebrow, .section-kicker { display: inline-flex; align-items: center; gap: 8px; color: #7A5CFF; font-weight: 800; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.hero-points span, .pill { border-radius: 999px; background: rgba(255,255,255,.82); border: 1px solid var(--border); padding: 8px 13px; color: #47516f; font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual img { width: 100%; max-height: 560px; object-fit: contain; filter: drop-shadow(0 30px 42px rgba(38,55,111,.18)); }
.floating-note { position: absolute; right: -15px; bottom: 28px; background: rgba(17,24,47,.94); color: #fff; border-radius: 18px; padding: 15px 18px; box-shadow: var(--shadow); max-width: 220px; }
.floating-note strong { display: block; color: #8cecff; }
.highlight-strip { margin-top: -22px; position: relative; z-index: 3; }
.highlight-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.highlight-item { background: rgba(255,255,255,.94); border: 1px solid var(--border); box-shadow: 0 14px 36px rgba(25,43,91,.1); border-radius: 18px; padding: 20px; }
.highlight-item h2, .highlight-item h3 { margin: 0 0 8px; font-size: 17px; color: var(--title); }
.highlight-item p { margin: 0; color: var(--muted); font-size: 14px; }
.section { padding: 78px 0; }
.section.tight { padding: 52px 0; }
.section.soft { background: #EEF5FF; }
.section.dark { background: #11182F; color: #EEF2FF; }
.section.dark h2, .section.dark h3 { color: #fff; }
.section-head { max-width: 760px; margin-bottom: 30px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-title, h2, h3 { color: var(--title); }
.section-title { font-size: clamp(30px, 4vw, 48px); line-height: 1.22; margin: 10px 0 14px; }
.section-head p { color: var(--muted); }
.channel-pills { display: flex; gap: 12px; flex-wrap: wrap; }
.channel-pill { flex: 1 1 190px; min-height: 118px; padding: 17px 18px; background: #fff; border: 1px solid var(--border); border-radius: 18px; }
.channel-pill strong { display: block; color: var(--title); margin-bottom: 5px; }
.channel-pill small { display: block; color: var(--muted); line-height: 1.55; margin-bottom: 8px; }
.channel-pill a { font-weight: 700; font-size: 13px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.split.reverse .media { order: 2; }
.media img, .content-img { width: 100%; max-height: 520px; object-fit: contain; border-radius: 26px; }
.content-panel { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 26px; padding: clamp(24px,4vw,46px); }
.content-panel h2 { font-size: clamp(28px,4vw,42px); line-height: 1.25; margin: 8px 0 15px; }
.content-panel p { color: var(--muted); }
.text-link { font-weight: 800; display: inline-flex; align-items: center; gap: 6px; }
.text-link::after { content: "→"; }
.card-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.card-grid.two { grid-template-columns: repeat(2,1fr); }
.card-grid.four { grid-template-columns: repeat(4,1fr); }
.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 22px; overflow: hidden; }
.card img, .zone-card img { width: 100%; height: 240px; object-fit: contain; background: #f6f8ff; }
.card-body { padding: 24px; }
.card-body h3 { margin: 0 0 10px; font-size: 22px; }
.card-body p { color: var(--muted); }
.service-points { display: grid; gap: 12px; margin: 22px 0; }
.service-point { display: grid; grid-template-columns: 34px 1fr; gap: 12px; align-items: start; }
.service-point span { width: 34px; height: 34px; border-radius: 11px; background: #eef0ff; color: var(--brand); display: grid; place-content: center; font-weight: 900; }
.service-point strong { display: block; color: var(--title); }
.service-point p { margin: 2px 0 0; font-size: 14px; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.safety-card { display: grid; grid-template-columns: 180px 1fr; gap: 22px; align-items: center; background: #fff; border: 1px solid var(--border); border-radius: 24px; padding: 24px; box-shadow: var(--shadow); }
.safety-card img { width: 180px; height: 180px; object-fit: contain; }
.safety-card h3 { margin-top: 0; }
.review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.review-card { padding: 24px; }
.review-card p { margin: 0 0 15px; color: #4f5973; }
.review-card span { color: var(--soft); font-size: 13px; }
.faq-list { display: grid; gap: 13px; }
details { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 0 20px; }
summary { list-style: none; cursor: pointer; padding: 18px 36px 18px 0; font-weight: 800; color: var(--title); position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 2px; top: 14px; font-size: 24px; color: var(--brand); }
details[open] summary::after { content: "−"; }
details p { margin: 0; padding: 0 0 18px; color: var(--muted); }
.notice { border-radius: 24px; padding: clamp(25px,5vw,50px); background: linear-gradient(135deg,#16213E 0%,#293a7a 60%,#5B6CFF 100%); color: #eef2ff; position: relative; overflow: hidden; }
.notice h2 { color: #fff; margin-top: 0; font-size: clamp(28px,4vw,42px); }
.notice p { max-width: 900px; color: #dbe2ff; }
.notice .main-btn { margin-top: 12px; }
.page-hero { padding: 72px 0 52px; background: radial-gradient(circle at 15% 15%,rgba(122,92,255,.19),transparent 30%), linear-gradient(145deg,#f9f6ff,#ecf7ff); }
.page-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 55px; align-items: center; }
.page-hero h1 { font-size: clamp(38px,6vw,64px); line-height: 1.18; margin: 10px 0 18px; }
.page-hero p { color: var(--muted); font-size: 17px; }
.page-hero img { max-height: 430px; width: 100%; object-fit: contain; }
.breadcrumbs { font-size: 13px; color: var(--soft); margin-bottom: 8px; }
.long-copy { display: grid; gap: 18px; }
.long-copy p { margin: 0; color: #4f5973; }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.step { position: relative; padding: 25px; background: #fff; border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow); }
.step::before { counter-increment: step; content: counter(step); width: 38px; height: 38px; display: grid; place-content: center; border-radius: 13px; background: var(--gradient); color: #fff; font-weight: 900; margin-bottom: 15px; }
.step h3 { margin: 0 0 8px; }
.info-band { padding: 25px; border-radius: 20px; background: #FFF4D6; border: 1px solid rgba(255,200,87,.4); }
.info-band strong { color: #7b5b15; }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 60px 0 24px; }
.footer-grid { width: min(1180px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.6fr repeat(3,1fr); gap: 36px; }
.footer-grid h2 { color: #fff; font-size: 16px; margin: 0 0 14px; }
.footer-grid a { display: block; color: #cfd6f4; margin: 8px 0; font-size: 14px; }
.footer-grid p { color: #aeb8dd; max-width: 380px; }
.footer-logo { margin-bottom: 14px; }
.footer-bottom { width: min(1180px, calc(100% - 40px)); margin: 35px auto 0; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); color: #9ba6cc; font-size: 12px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1040px) {
  .nav-core { display: none; }
  .hero-grid, .page-hero-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .card-grid.four { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column: 2 / 4; }
}
@media (max-width: 780px) {
  body { padding-bottom: 74px; }
  .header-inner { min-height: 64px; padding: 0 14px; gap: 10px; }
  .site-logo strong { font-size: 17px; }
  .site-logo img { width: 36px; height: 36px; }
  .desktop-menu-toggle { display: none; }
  .mobile-menu-toggle { display: inline-grid; }
  .header-actions .main-btn { min-height: 36px; padding: 0 13px; font-size: 12px; }
  .hero { padding-top: 58px; }
  .hero-grid, .page-hero-grid, .split, .safety-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 560px; margin: 0 auto; }
  .hero-copy h1 { font-size: 54px; }
  .highlight-grid, .card-grid, .card-grid.two, .review-grid, .steps { grid-template-columns: 1fr 1fr; }
  .split.reverse .media { order: 0; }
  .safety-card { grid-template-columns: 130px 1fr; }
  .safety-card img { width: 130px; height: 130px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-grid > div:last-child { grid-column: auto; }
  .mobile-bottom-nav { position: fixed; left: 10px; right: 10px; bottom: 8px; z-index: 9000; height: 60px; display: grid; grid-template-columns: repeat(4,1fr); background: rgba(11,16,36,.96); backdrop-filter: blur(12px); border-radius: 18px; box-shadow: 0 12px 30px rgba(11,16,36,.28); overflow: hidden; }
  .mobile-bottom-nav a { color: #eaf0ff; display: grid; place-content: center; text-align: center; font-size: 11px; }
  .mobile-bottom-nav span { display: block; color: #73e4ff; font-size: 19px; line-height: 1; }
}
@media (max-width: 560px) {
  .container { width: min(100% - 28px, 1180px); }
  .hero-copy h1 { font-size: 46px; }
  .hero-copy .lead { font-size: 23px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .highlight-grid, .card-grid, .card-grid.two, .card-grid.four, .review-grid, .steps { grid-template-columns: 1fr; }
  .highlight-strip { margin-top: 0; padding-top: 18px; }
  .section { padding: 58px 0; }
  .floating-note { position: static; margin-top: 12px; max-width: none; }
  .safety-card { grid-template-columns: 1fr; }
  .safety-card img { width: 100%; height: 190px; }
  .drawer-nav { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand, .footer-grid > div:last-child { grid-column: auto; }
  .footer-bottom { display: block; }
}