:root {
  --bg: #F5F7FF;
  --nav: rgba(12,18,40,0.94);
  --title: #131A35;
  --brand: #5B6CFF;
  --deep: #16213E;
  --cyan: #00D4FF;
  --gold: #FFC857;
  --rose: #D94F70;
  --violet: #7A5CFF;
  --text: #1F2740;
  --muted: #66708A;
  --soft: #9AA4BA;
  --card: #FFFFFF;
  --dark-card: #11182F;
  --light-blue: #EFF8FF;
  --light-gold: #FFF4D6;
  --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%);
  --footer: #0B1024;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.78;
  overflow-x: hidden;
}
body.drawer-open { overflow: hidden; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: none; }
img { max-width: 100%; height: auto; }
button, input, textarea { font: inherit; }
.skip-link {
  position: fixed; left: 16px; top: -60px; z-index: 12000;
  background: #fff; color: var(--title); padding: 10px 14px; border-radius: 10px;
}
.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 {
  max-width: 1280px; margin: 0 auto; min-height: 72px; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
}
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-weight: 800; letter-spacing: .03em; flex: 0 0 auto; }
.site-logo img { max-height: 44px; width: auto; display: block; object-fit: contain; }
.site-logo span { white-space: nowrap; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 6px; min-width: 0; }
.nav-core a { color: #EEF2FF; 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 24px;
  background: var(--gradient); color: #fff; border-radius: 999px; box-shadow: 0 14px 32px rgba(91,108,255,0.22);
  font-weight: 800; transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 38px rgba(91,108,255,.3); }
.compact-btn { min-height: 40px; padding: 0 18px; font-size: 14px; }
.menu-toggle, .drawer-close {
  border: 1px solid rgba(255,255,255,.22); background: rgba(255,255,255,.08); color: #fff;
  border-radius: 999px; padding: 8px 14px; cursor: pointer;
}
.mobile-menu-toggle { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10020; background: rgba(3,8,24,.55); opacity: 0; transition: opacity .22s ease; }
.drawer-overlay.is-visible { opacity: 1; }
.site-drawer {
  position: fixed; z-index: 10030; top: 0; right: 0; bottom: 0; width: min(410px, 92vw);
  background: #fff; transform: translateX(102%); transition: transform .26s ease;
  box-shadow: -22px 0 48px rgba(5,13,42,.23); padding: 24px; overflow-y: auto;
}
.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 var(--border); }
.drawer-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--title); }
.drawer-brand img { width: auto; max-height: 42px; object-fit: contain; }
.drawer-close { color: var(--title); border-color: var(--border); background: #F3F5FF; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; padding: 22px 0; }
.drawer-nav a, .drawer-support a { color: var(--text); background: #F7F8FF; border: 1px solid var(--border); border-radius: 14px; padding: 11px 13px; }
.drawer-nav a:hover, .drawer-support a:hover { color: var(--brand); border-color: rgba(91,108,255,.42); }
.drawer-support { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; padding-top: 18px; border-top: 1px solid var(--border); }

main { min-height: 62vh; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 76px 0; }
.section-sm { padding: 50px 0; }
.section-title { margin: 0 0 16px; color: var(--title); font-size: clamp(28px, 4vw, 46px); line-height: 1.2; letter-spacing: -.02em; }
.section-title.small { font-size: clamp(25px, 3vw, 36px); }
.section-kicker { margin: 0 0 10px; color: var(--brand); font-weight: 800; letter-spacing: .08em; font-size: 13px; text-transform: uppercase; }
.section-lead { max-width: 820px; margin: 0; color: var(--muted); font-size: 17px; }
.section-head { margin-bottom: 32px; }

.hero { position: relative; overflow: hidden; padding: 76px 0 64px; background: linear-gradient(135deg, #F7F3FF 0%, #ECF7FF 52%, #FFF3F9 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(4px); opacity: .48; pointer-events: none; }
.hero::before { width: 360px; height: 360px; background: rgba(122,92,255,.2); right: -90px; top: -90px; }
.hero::after { width: 280px; height: 280px; background: rgba(0,212,255,.17); left: -90px; bottom: -100px; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; gap: 54px; align-items: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(91,108,255,.09); color: var(--brand); border: 1px solid rgba(91,108,255,.17); border-radius: 999px; padding: 8px 13px; font-weight: 700; font-size: 14px; }
.hero h1 { margin: 16px 0 12px; color: var(--title); font-size: clamp(46px, 8vw, 82px); line-height: 1; letter-spacing: -.05em; }
.hero-subtitle { margin: 0 0 18px; color: var(--deep); font-size: clamp(23px, 3vw, 34px); font-weight: 800; }
.hero-copy { color: var(--muted); font-size: 16px; margin-bottom: 26px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin: 24px 0; }
.secondary-link { display: inline-flex; align-items: center; min-height: 46px; padding: 0 18px; border-radius: 999px; border: 1px solid var(--border); background: rgba(255,255,255,.76); color: var(--title); font-weight: 700; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 20px 0 0; list-style: none; }
.hero-points li { background: rgba(255,255,255,.72); border: 1px solid rgba(91,108,255,.15); border-radius: 999px; padding: 7px 12px; color: var(--text); font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual img { width: 100%; max-height: 590px; object-fit: contain; filter: drop-shadow(0 28px 36px rgba(25,43,91,.18)); }
.hero-float { position: absolute; background: rgba(255,255,255,.9); border: 1px solid rgba(91,108,255,.14); border-radius: 18px; box-shadow: var(--shadow); padding: 12px 15px; color: var(--title); font-weight: 700; font-size: 13px; }
.hero-float.one { left: -18px; top: 15%; }
.hero-float.two { right: -8px; bottom: 13%; }

.highlight-strip { margin-top: -18px; position: relative; z-index: 2; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.highlight-item { background: #fff; border: 1px solid var(--border); box-shadow: 0 14px 32px rgba(25,43,91,.09); border-radius: 20px; padding: 20px; }
.highlight-item strong { display: block; color: var(--title); margin-bottom: 6px; font-size: 17px; }
.highlight-item p { color: var(--muted); margin: 0; font-size: 14px; }

.pill-nav { display: flex; gap: 10px; flex-wrap: wrap; }
.pill-item { flex: 1 1 190px; max-width: 260px; background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 16px; }
.pill-item strong { display: block; color: var(--title); margin-bottom: 5px; }
.pill-item span { display: block; color: var(--muted); font-size: 14px; min-height: 50px; }
.pill-item a { font-weight: 700; font-size: 14px; }

.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 22px; }
.split-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; align-items: stretch; }
.triple-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.media-card { padding: 22px; overflow: hidden; }
.media-card img { width: 100%; max-height: 320px; object-fit: contain; border-radius: 17px; background: linear-gradient(145deg,#F2F4FF,#F0FBFF); }
.media-card h3 { color: var(--title); margin: 18px 0 8px; font-size: 24px; }
.media-card p { color: var(--muted); margin: 0 0 14px; }
.feature-list { display: grid; gap: 10px; padding: 0; margin: 18px 0; list-style: none; }
.feature-list li { position: relative; padding-left: 22px; color: var(--text); }
.feature-list li::before { content: ""; position: absolute; width: 9px; height: 9px; border-radius: 50%; background: var(--gradient); left: 0; top: .78em; }
.text-link { color: var(--brand); font-weight: 800; }

.brand-panel { display: grid; grid-template-columns: .95fr 1.05fr; gap: 42px; align-items: center; background: #fff; border: 1px solid var(--border); border-radius: 28px; box-shadow: var(--shadow); padding: 34px; }
.brand-panel img { max-height: 430px; width: 100%; object-fit: contain; border-radius: 22px; }
.brand-panel p { color: var(--muted); }

.security-wrap { background: linear-gradient(135deg,#11182F,#17224B); color: #EEF2FF; border-radius: 30px; padding: 34px; box-shadow: 0 26px 50px rgba(11,16,36,.22); }
.security-wrap .section-title { color: #fff; }
.security-wrap .section-lead { color: #CDD5F6; }
.security-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 26px; align-items: center; margin-top: 26px; }
.security-images { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.security-images img { width: 100%; max-height: 280px; object-fit: contain; background: rgba(255,255,255,.06); border-radius: 18px; }
.security-points { display: grid; gap: 12px; }
.security-point { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 16px; padding: 16px; }
.security-point strong { color: #fff; display: block; margin-bottom: 5px; }
.security-point span { color: #CFD6F3; font-size: 14px; }

.reviews { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.review-card { padding: 22px; }
.review-card p { margin: 0; color: var(--text); }
.review-meta { margin-top: 14px; color: var(--soft); font-size: 13px; }

.faq-list { display: grid; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 19px 22px; }
.faq-item h3 { margin: 0 0 8px; color: var(--title); font-size: 18px; }
.faq-item p { margin: 0; color: var(--muted); }
.notice { background: #FFF8E7; border: 1px solid rgba(255,200,87,.48); border-radius: 22px; padding: 24px; }
.notice h2, .notice h3 { color: var(--title); margin-top: 0; }
.notice p { margin-bottom: 0; color: #5E5870; }

.inner-hero { padding: 66px 0 50px; background: linear-gradient(135deg,#F6F2FF 0%,#EAF7FF 58%,#FFF7EC 100%); }
.inner-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 42px; align-items: center; }
.inner-hero h1 { color: var(--title); font-size: clamp(38px, 6vw, 62px); line-height: 1.12; margin: 10px 0 16px; letter-spacing: -.035em; }
.inner-hero p { color: var(--muted); font-size: 17px; }
.content-img, .zone-card img, .app-section img, .hero-visual img { max-width: 100%; height: auto; object-fit: contain; }
.inner-hero img { width: 100%; max-height: 430px; object-fit: contain; border-radius: 24px; filter: drop-shadow(0 24px 35px rgba(25,43,91,.16)); }
.rich-copy { display: grid; gap: 18px; }
.rich-copy p { margin: 0; color: var(--muted); font-size: 16px; }
.content-card { padding: 28px; }
.content-card h2, .content-card h3 { color: var(--title); margin-top: 0; }
.service-points { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; margin-top: 24px; }
.service-point { background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 19px; }
.service-point h3 { color: var(--title); margin: 0 0 7px; font-size: 18px; }
.service-point p { color: var(--muted); margin: 0; font-size: 14px; }
.info-band { background: linear-gradient(135deg,#EFF8FF,#F4F0FF); border: 1px solid var(--border); border-radius: 24px; padding: 26px; }
.info-band h2 { color: var(--title); margin-top: 0; }
.info-band p { color: var(--muted); }
.cta-band { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding: 28px; border-radius: 26px; background: linear-gradient(135deg,#11182F,#1A285B); color: #fff; }
.cta-band h2 { margin: 0 0 6px; color: #fff; }
.cta-band p { margin: 0; color: #D6DCF4; }

.site-footer { background: var(--footer); color: #EEF2FF; padding: 58px 0 0; }
.footer-inner { width: min(1180px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.15fr 1.85fr; gap: 50px; }
.footer-brand p { max-width: 470px; color: #AEB8D8; }
.footer-logo { margin-bottom: 16px; }
.footer-links { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.footer-links h3 { margin: 0 0 12px; color: #fff; font-size: 15px; }
.footer-links a { display: block; color: #B9C2DE; margin: 7px 0; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 38px; border-top: 1px solid rgba(255,255,255,.09); color: #8792B4; text-align: center; padding: 18px 20px; font-size: 13px; }
.mobile-bottom-nav { display: none; }

@media (max-width: 1080px) {
  .nav-core { gap: 2px; }
  .nav-core a { padding: 8px 9px; font-size: 14px; }
  .hero-grid, .brand-panel, .inner-hero-grid { gap: 30px; }
  .card-grid.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .header-inner { min-height: 66px; padding: 0 14px; }
  .nav-core, .desktop-menu-toggle { display: none; }
  .mobile-menu-toggle { display: inline-flex; order: 1; }
  .site-logo { order: 2; margin: 0 auto; }
  .site-logo span { display: none; }
  .header-actions { order: 3; }
  .header-actions .main-btn { min-height: 38px; padding: 0 13px; font-size: 13px; }
  .hero-grid, .inner-hero-grid, .brand-panel, .security-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 54px; }
  .hero-copy { max-width: 760px; }
  .hero-visual { max-width: 650px; margin: 0 auto; }
  .highlight-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .triple-grid, .card-grid, .reviews, .service-points { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: repeat(4, minmax(0,1fr)); }
}

@media (max-width: 640px) {
  body { padding-bottom: 68px; }
  .container { width: min(100% - 28px, 1180px); }
  .section { padding: 56px 0; }
  .section-sm { padding: 38px 0; }
  .header-inner { gap: 8px; }
  .site-logo img { max-height: 38px; max-width: 116px; }
  .menu-toggle { padding: 7px 10px; font-size: 13px; }
  .hero { padding: 44px 0 48px; }
  .hero h1 { font-size: clamp(44px, 15vw, 66px); }
  .hero-subtitle { font-size: 24px; }
  .hero-float { display: none; }
  .highlight-strip { margin-top: 0; padding-top: 16px; }
  .highlight-grid, .split-grid, .triple-grid, .card-grid, .card-grid.four, .reviews, .service-points, .security-images { grid-template-columns: 1fr; }
  .pill-item { max-width: none; flex-basis: 100%; }
  .brand-panel { padding: 22px; }
  .security-wrap { padding: 24px; border-radius: 22px; }
  .cta-band { align-items: flex-start; flex-direction: column; }
  .drawer-nav, .drawer-support { grid-template-columns: 1fr; }
  .site-drawer { left: 0; right: auto; transform: translateX(-102%); width: min(390px, 92vw); }
  .site-drawer.is-open { transform: translateX(0); }
  .footer-links { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .mobile-bottom-nav {
    display: grid; grid-template-columns: repeat(4, 1fr); position: fixed; z-index: 9990; left: 10px; right: 10px; bottom: 8px;
    background: rgba(11,16,36,.95); backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,.11); border-radius: 18px;
    box-shadow: 0 16px 34px rgba(11,16,36,.24); padding: 7px;
  }
  .mobile-bottom-nav a { color: #EEF2FF; text-align: center; padding: 7px 5px; border-radius: 12px; font-size: 13px; }
  .mobile-bottom-nav a:hover { background: rgba(91,108,255,.25); }
}