:root {
  --bg: #F6F8FB;
  --nav: rgba(12,18,32,0.92);
  --title: #111827;
  --brand: #1E4FFF;
  --deep: #0F1B3D;
  --blue: #00A8FF;
  --gold: #F5B84B;
  --red: #D94A4A;
  --light-blue: #EAF2FF;
  --light-gold: #FFF4D8;
  --text: #1F2937;
  --muted: #5B6472;
  --soft: #9AA3B2;
  --card: #FFFFFF;
  --border: rgba(30,79,255,0.14);
  --shadow: 0 18px 42px rgba(15,27,61,0.12);
  --grad: linear-gradient(135deg, #1E4FFF 0%, #00A8FF 55%, #F5B84B 100%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
}
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 9999;
  background: var(--nav);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 26px rgba(15,27,61,0.16);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  min-height: 72px;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.site-logo, .footer-logo, .drawer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: .04em;
  color: #fff;
  white-space: nowrap;
}
.site-logo img { max-height: 44px; }
.footer-logo img, .drawer-brand img { width: 42px; height: 42px; object-fit: contain; }
.nav-core { display: flex; align-items: center; gap: 10px; }
.nav-core a {
  color: #EAF0FF;
  text-decoration: none;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 15px;
  white-space: nowrap;
  transition: .2s ease;
}
.nav-core a:hover, .nav-core a.active { color: #fff; background: rgba(0,168,255,0.16); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.main-btn, .ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 999px;
  min-height: 44px;
  padding: 10px 20px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.main-btn { background: var(--grad); color: #fff; box-shadow: 0 14px 32px rgba(30,79,255,0.22); }
.ghost-btn { color: var(--brand); background: rgba(30,79,255,0.08); border: 1px solid var(--border); }
.main-btn:hover, .ghost-btn:hover { transform: translateY(-2px); box-shadow: 0 20px 36px rgba(15,27,61,0.16); }
.menu-toggle {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(234,240,255,0.22);
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
}
.menu-toggle span { width: 18px; height: 2px; background: #fff; border-radius: 99px; }
.mobile-menu { display: none; }
.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(11,16,32,0.42);
  opacity: 0;
  visibility: hidden;
  z-index: 10000;
  transition: .22s ease;
}
.site-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(390px, 86vw);
  min-height: 100vh;
  background: #fff;
  z-index: 10001;
  transform: translateX(100%);
  transition: .28s ease;
  box-shadow: -24px 0 50px rgba(15,27,61,0.18);
  padding: 22px;
}
.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: 18px; }
.drawer-brand { color: var(--title); }
.drawer-close {
  border: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--light-blue);
  color: var(--deep);
  font-size: 26px;
  cursor: pointer;
}
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.drawer-nav a {
  text-decoration: none;
  background: linear-gradient(135deg, #F0F6FF, #FFF4D8);
  color: var(--deep);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px 14px;
  font-weight: 700;
}
.site-main { min-height: 60vh; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 78px 0; }
.section.tight { padding: 46px 0; }
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 12%, rgba(0,168,255,0.22), transparent 26%),
    radial-gradient(circle at 82% 16%, rgba(245,184,75,0.28), transparent 24%),
    linear-gradient(135deg, #F7F9FF 0%, #EAF2FF 46%, #FFF7E6 100%);
  padding: 84px 0 72px;
}
.hero-grid, .two-col, .inner-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 42px; align-items: center; }
.kicker, .section-kicker, .tag, .label, .badge {
  color: var(--gold);
  font-weight: 800;
  letter-spacing: .04em;
}
.kicker { display: inline-flex; padding: 6px 12px; border-radius: 999px; background: rgba(245,184,75,0.12); margin-bottom: 14px; }
h1, h2, h3, .section-title { color: var(--title); margin: 0; line-height: 1.25; }
h1 { font-size: clamp(42px, 6vw, 76px); letter-spacing: .02em; }
h2 { font-size: clamp(28px, 3.5vw, 44px); margin-bottom: 16px; }
h3 { font-size: 22px; margin-bottom: 10px; }
p { margin: 0 0 16px; color: var(--muted); }
.lead { color: var(--text); font-size: 18px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 24px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.hero-tags span, .pill {
  border: 1px solid rgba(30,79,255,0.12);
  background: rgba(255,255,255,0.78);
  color: var(--deep);
  padding: 8px 12px;
  border-radius: 999px;
  box-shadow: 0 12px 26px rgba(15,27,61,0.06);
}
.hero-visual { position: relative; }
.hero-visual img, .content-img, .zone-card img, .app-section img, .inner-hero-img img, .feature-media img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 28px;
}
.hero-visual img { box-shadow: 0 30px 70px rgba(15,27,61,0.18); background: #fff; }
.float-card {
  position: absolute;
  right: -8px;
  bottom: 22px;
  width: min(260px, 62%);
  background: rgba(255,255,255,0.94);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 16px;
  box-shadow: var(--shadow);
}
.highlight-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: -34px;
  position: relative;
  z-index: 2;
}
.card, .zone-card, .info-card, .review-card, .faq-card, .notice-card {
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: 22px;
}
.info-card { padding: 24px; }
.card { padding: 26px; }
.channel-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.channel-pill {
  text-decoration: none;
  display: block;
  background: rgba(255,255,255,0.86);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 14px 18px;
  min-height: 104px;
  transition: .2s ease;
}
.channel-pill strong { display: block; color: var(--title); margin-bottom: 4px; }
.channel-pill span { display: block; color: var(--muted); font-size: 14px; line-height: 1.6; }
.channel-pill:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.media-card, .zone-card { overflow: hidden; }
.zone-card img, .media-card img { width: 100%; background: #fff; }
.zone-body { padding: 24px; }
.points { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.points li { color: var(--muted); padding-left: 22px; position: relative; }
.points li:before { content: ''; position: absolute; left: 0; top: .82em; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); }
.text-link { color: var(--brand); text-decoration: none; font-weight: 800; }
.text-link:hover { text-decoration: underline; }
.three-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.security-panel {
  background: linear-gradient(135deg, #0F1B3D 0%, #111827 62%, #172554 100%);
  color: #EAF0FF;
  border-radius: 30px;
  padding: 34px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
  box-shadow: var(--shadow);
}
.security-panel h2, .security-panel h3 { color: #fff; }
.security-panel p, .security-panel li { color: #D7E3FF; }
.security-images { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.security-images img { border-radius: 24px; background: #fff; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.review-card { padding: 22px; }
.review-card strong { color: var(--title); display: block; margin-bottom: 8px; }
.faq-list { display: grid; gap: 14px; }
.faq-card { padding: 22px; }
.faq-card h3 { font-size: 19px; }
.reminder {
  background: linear-gradient(135deg, #FFF4D8, #EAF2FF);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 30px;
}
.inner-hero {
  padding: 70px 0;
  background:
    radial-gradient(circle at 14% 18%, rgba(0,168,255,0.18), transparent 24%),
    radial-gradient(circle at 78% 12%, rgba(245,184,75,0.23), transparent 25%),
    linear-gradient(135deg, #F7F9FF 0%, #EAF2FF 54%, #FFF8EA 100%);
}
.inner-hero h1 { font-size: clamp(34px, 5vw, 58px); }
.inner-hero-img img { box-shadow: var(--shadow); background: #fff; }
.article { max-width: 880px; }
.article p { font-size: 17px; line-height: 1.95; color: var(--text); }
.notice-card { padding: 24px; background: #fff; }
.service-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.service-list .card h3 { display: flex; align-items: center; gap: 8px; }
.service-list .card h3:before { content: ''; width: 10px; height: 10px; border-radius: 50%; background: var(--grad); display: inline-block; }
.app-showcase { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center; }
.site-footer { background: #0B1020; color: #EAF0FF; padding: 54px 0 34px; }
.footer-inner { width: min(1180px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1fr 1.35fr; gap: 42px; }
.footer-brand p, .footer-note p { color: #BFC9E6; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.footer-links h3 { color: #fff; font-size: 18px; }
.footer-links a { display: block; color: #EAF0FF; text-decoration: none; margin: 8px 0; }
.footer-links a:hover { color: #F5B84B; }
.footer-note { width: min(1180px, calc(100% - 40px)); margin: 32px auto 0; border-top: 1px solid rgba(234,240,255,0.12); padding-top: 22px; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1040px) {
  .nav-core { gap: 4px; }
  .nav-core a { padding: 8px 9px; font-size: 14px; }
  .channel-grid { grid-template-columns: repeat(3, 1fr); }
  .highlight-strip, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .review-grid, .service-list, .three-col { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  body { padding-bottom: 68px; }
  .header-inner { min-height: 64px; padding: 0 14px; }
  .mobile-menu { display: inline-flex; order: 1; }
  .site-logo { order: 2; position: absolute; left: 50%; transform: translateX(-50%); }
  .site-logo span { display: none; }
  .site-logo img { max-height: 40px; }
  .nav-core, .desktop-menu { display: none; }
  .header-actions { order: 3; margin-left: auto; }
  .header-cta { min-height: 38px; padding: 8px 13px; font-size: 13px; }
  .hero { padding: 52px 0 44px; }
  .hero-grid, .two-col, .inner-hero-grid, .security-panel, .app-showcase, .footer-inner { grid-template-columns: 1fr; }
  .container { width: min(100% - 28px, 1180px); }
  .section { padding: 52px 0; }
  .highlight-strip { margin-top: 20px; }
  .highlight-strip, .channel-grid, .review-grid, .service-list, .three-col, .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .security-images { grid-template-columns: 1fr; }
  .float-card { position: static; margin-top: 14px; width: 100%; }
  .drawer-nav { grid-template-columns: 1fr; }
  .site-drawer { right: auto; left: 0; transform: translateX(-100%); width: min(350px, 88vw); }
  .drawer-open .site-drawer { transform: translateX(0); }
  .footer-links { grid-template-columns: 1fr; }
  .mobile-bottom-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9998;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: rgba(255,255,255,0.96);
    border-top: 1px solid var(--border);
    box-shadow: 0 -10px 28px rgba(15,27,61,0.12);
    backdrop-filter: blur(10px);
  }
  .mobile-bottom-nav a { text-align: center; text-decoration: none; color: var(--deep); font-weight: 800; padding: 11px 4px; font-size: 13px; }
}
@media (max-width: 520px) {
  h1 { font-size: 40px; }
  h2 { font-size: 28px; }
  .card, .info-card, .zone-body, .security-panel, .reminder { padding: 22px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .main-btn, .ghost-btn { width: 100%; }
  .header-cta { width: auto; }
}