html,
body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
}
* { box-sizing: border-box; }
body {
  background: #121826;
  color: #E8ECF3;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
main { position: relative; z-index: 1; }
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 9999;
  background: #121826;
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.22);
  border-bottom: 1px solid rgba(241,209,138,0.13);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  min-height: 72px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand-logo img { width: 164px; max-height: 50px; object-fit: contain; }
.site-nav { display: flex; align-items: center; justify-content: center; gap: 6px; flex: 1; }
.nav-link {
  position: relative;
  color: #F1D18A;
  font-size: 15px;
  padding: 10px 13px;
  border-radius: 999px;
  transition: background .2s ease, color .2s ease, transform .2s ease;
  white-space: nowrap;
}
.nav-link:hover,
.nav-link.active {
  background: #1C2333;
  color: #F1D18A;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 22%; right: 22%; bottom: 4px;
  height: 2px;
  border-radius: 4px;
  background: #F1D18A;
  box-shadow: 0 0 12px rgba(241,209,138,0.68);
}
.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 22px;
  border-radius: 999px;
  background: #F1D18A;
  color: #1A1F2B;
  font-weight: 700;
  letter-spacing: .02em;
  box-shadow: 0 10px 24px rgba(241,209,138,0.18);
  transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
}
.main-btn:hover { background: #E0BC6A; transform: translateY(-1px); box-shadow: 0 14px 30px rgba(241,209,138,0.22); }
.mobile-header { display: none; }
.menu-toggle, .drawer-close {
  border: 0;
  color: #F1D18A;
  background: #171E2D;
  cursor: pointer;
}
.menu-toggle {
  width: 42px; height: 42px; border-radius: 14px;
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  border: 1px solid rgba(241,209,138,0.18);
}
.menu-toggle span { width: 18px; height: 2px; border-radius: 3px; background: #F1D18A; }
.mobile-logo img { width: 132px; max-height: 42px; object-fit: contain; }
.mobile-top-btn { padding: 0 15px; min-height: 38px; font-size: 13px; }
.drawer-backdrop {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(0,0,0,.54);
  opacity: 0; pointer-events: none;
  transition: opacity .2s ease;
}
.mobile-drawer {
  position: fixed; left: 0; top: 0; bottom: 0; z-index: 10001;
  width: min(84vw, 340px);
  padding: 20px;
  background: #121826;
  border-right: 1px solid rgba(241,209,138,0.18);
  transform: translateX(-105%);
  transition: transform .25s ease;
  box-shadow: 16px 0 40px rgba(0,0,0,.34);
  overflow-y: auto;
}
body.menu-open { overflow: hidden; }
body.menu-open .drawer-backdrop { opacity: 1; pointer-events: auto; }
body.menu-open .mobile-drawer { transform: translateX(0); }
.drawer-top { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 20px; }
.drawer-logo img { width: 150px; max-height: 48px; object-fit: contain; }
.drawer-close { width: 40px; height: 40px; border-radius: 12px; font-size: 28px; line-height: 1; border: 1px solid rgba(241,209,138,0.18); }
.drawer-nav { display: grid; gap: 10px; }
.drawer-link {
  color: #F1D18A;
  background: #171E2D;
  border: 1px solid rgba(241,209,138,0.13);
  border-radius: 16px;
  padding: 12px 14px;
}
.drawer-link.active { background: #21293B; box-shadow: inset 3px 0 0 #F1D18A; }
.drawer-btn { width: 100%; margin: 18px 0 12px; }
.drawer-note { color: #AAB3C5; font-size: 13px; margin: 0; }
.section, .page-section { max-width: 1280px; margin: 0 auto; padding: 78px 24px; }
.hero-section {
  background:
    radial-gradient(circle at 18% 20%, rgba(241,209,138,0.14) 0%, rgba(241,209,138,0) 30%),
    linear-gradient(135deg, #121826 0%, #171E2D 52%, #1C2333 100%);
  border-bottom: 1px solid rgba(241,209,138,0.09);
}
.hero-inner { max-width: 1280px; margin: 0 auto; padding: 78px 24px 44px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(360px, .96fr); gap: 42px; align-items: center; }
.eyebrows { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
.eyebrows span, .gold-tag {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(241,209,138,.28);
  color: #F1D18A;
  background: rgba(241,209,138,.08);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
}
h1, h2, h3 { color: #F1D18A; line-height: 1.25; margin-top: 0; }
h1 { font-size: clamp(34px, 5vw, 62px); margin-bottom: 22px; letter-spacing: -.04em; }
h2 { font-size: clamp(26px, 3vw, 40px); margin-bottom: 18px; }
h3 { font-size: 21px; margin-bottom: 12px; }
p { color: #C7CEDD; margin-top: 0; }
.lead { color: #E8ECF3; font-size: 18px; max-width: 760px; }
.muted { color: #AAB3C5; }
.hero-actions { display: flex; align-items: center; gap: 18px; margin-top: 28px; flex-wrap: wrap; }
.text-link { color: #F1D18A; font-weight: 700; border-bottom: 1px solid rgba(241,209,138,.45); }
.text-link:hover { color: #E0BC6A; }
.hero-visual {
  position: relative;
  background: linear-gradient(145deg, #171E2D, #21293B);
  border: 1px solid rgba(241,209,138,.24);
  border-radius: 32px;
  padding: 20px;
  box-shadow: 0 24px 60px rgba(0,0,0,.35), 0 0 70px rgba(241,209,138,.10);
  overflow: hidden;
}
.hero-visual::before {
  content: "";
  position: absolute; inset: 12px;
  border-radius: 24px;
  border: 1px solid rgba(241,209,138,.14);
  pointer-events: none;
}
.hero-visual img, .content-img, .zone-card img, .app-image img, .page-visual img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}
.hero-visual img { width: 100%; max-height: 460px; margin: 0 auto; position: relative; z-index: 1; }
.hero-service-cards { margin-top: 34px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.mini-card, .card, .zone-card, .info-card, .faq-item, .service-pill, .stat-strip, .page-card {
  background: #1A2130;
  border: 1px solid rgba(241,209,138,0.14);
  box-shadow: 0 14px 36px rgba(0,0,0,0.25);
  border-radius: 24px;
}
.mini-card { padding: 18px; }
.mini-card strong { display: block; color: #F1D18A; margin-bottom: 6px; }
.mini-card p { margin: 0; font-size: 14px; color: #AAB3C5; }
.quick-cats { display: flex; flex-wrap: wrap; gap: 12px; }
.cat-pill {
  flex: 1 1 250px;
  min-height: 92px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: center;
  padding: 16px 18px;
  border-radius: 999px;
  background: rgba(26,33,48,.82);
  border: 1px solid rgba(241,209,138,.16);
  box-shadow: 0 14px 30px rgba(0,0,0,.18);
}
.cat-pill .num { color: #F1D18A; font-weight: 800; font-size: 22px; }
.cat-pill strong { display: block; color: #E8ECF3; }
.cat-pill span:last-child { color: #AAB3C5; font-size: 14px; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-head p { max-width: 740px; margin: 0; }
.stat-strip { padding: 28px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 24px; background: linear-gradient(135deg, #171E2D, #1C2333); }
.stat-strip .gold-line, .gold-line { width: 110px; height: 3px; border-radius: 4px; background: #F1D18A; box-shadow: 0 0 20px rgba(241,209,138,.45); }
.three-grid, .matrix-grid, .security-grid, .faq-grid, .page-grid, .feature-list { display: grid; gap: 20px; }
.three-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card, .info-card, .page-card { padding: 26px; }
.card .card-no { color: #F1D18A; font-size: 28px; font-weight: 800; display: block; margin-bottom: 12px; }
ul.clean-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 8px; }
ul.clean-list li { color: #C7CEDD; padding-left: 18px; position: relative; }
ul.clean-list li::before { content: ""; position: absolute; left: 0; top: .8em; width: 6px; height: 6px; border-radius: 50%; background: #F1D18A; }
.alternate-wrap { display: grid; gap: 34px; }
.alternate-item { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; padding: 24px; border-radius: 30px; background: #171E2D; border: 1px solid rgba(241,209,138,.12); }
.alternate-item.reverse .alt-text { order: 1; }
.alternate-item.reverse .alt-image { order: 2; }
.alt-image { min-height: 260px; display: flex; align-items: center; justify-content: center; border-radius: 24px; background: linear-gradient(145deg, #1A2130, #21293B); padding: 18px; }
.alt-image img { max-height: 320px; width: 100%; object-fit: contain; }
.alt-text { padding: 10px; }
.matrix-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.zone-card { overflow: hidden; display: flex; flex-direction: column; }
.zone-img { height: 184px; display: flex; align-items: center; justify-content: center; padding: 16px; background: linear-gradient(145deg, #121826, #21293B); border-bottom: 1px solid rgba(241,209,138,.1); }
.zone-img img { max-height: 152px; width: 100%; object-fit: contain; }
.zone-body { padding: 22px; flex: 1; }
.zone-body .gold-tag { margin-bottom: 12px; }
.app-section-card { display: grid; grid-template-columns: minmax(260px, .85fr) minmax(0, 1.15fr); gap: 34px; align-items: center; padding: 30px; border-radius: 34px; background: linear-gradient(135deg, #171E2D, #1C2333 55%, #21293B); border: 1px solid rgba(241,209,138,.16); box-shadow: 0 20px 50px rgba(0,0,0,.28); }
.app-image { min-height: 320px; display: flex; align-items: center; justify-content: center; border-radius: 28px; background: rgba(18,24,38,.72); padding: 18px; }
.app-image img { max-height: 360px; }
.feature-list { grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 22px 0; }
.feature-list span { padding: 12px 14px; border-radius: 16px; background: rgba(241,209,138,.08); color: #E8ECF3; border: 1px solid rgba(241,209,138,.12); }
.security-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.info-card h3 { margin-bottom: 8px; }
.info-card p, .faq-item p { margin-bottom: 0; }
.faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.faq-item { padding: 24px; }
.notice-box { padding: 30px; border-radius: 30px; background: linear-gradient(135deg, #1A2130, #21293B); border: 1px solid rgba(241,209,138,.18); }
.notice-box ul { margin: 0; }
.page-hero { background: linear-gradient(135deg, #121826, #171E2D 52%, #1C2333); border-bottom: 1px solid rgba(241,209,138,.1); }
.page-hero-inner { max-width: 1280px; margin: 0 auto; padding: 76px 24px; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr); gap: 38px; align-items: center; }
.page-hero.no-image .page-hero-inner { display: block; max-width: 980px; }
.page-visual { min-height: 300px; display: flex; align-items: center; justify-content: center; padding: 20px; border-radius: 30px; background: #1A2130; border: 1px solid rgba(241,209,138,.16); box-shadow: 0 18px 44px rgba(0,0,0,.25); }
.page-visual img { max-height: 360px; }
.page-grid { grid-template-columns: 1.1fr .9fr; align-items: start; }
.content-panel { padding: 30px; border-radius: 30px; background: #171E2D; border: 1px solid rgba(241,209,138,.12); }
.content-panel p { margin-bottom: 18px; }
.content-panel p:last-child { margin-bottom: 0; }
.side-panel { display: grid; gap: 18px; }
.service-pill { padding: 18px 20px; }
.service-pill strong { display: block; color: #F1D18A; margin-bottom: 4px; }
.service-pill span { color: #AAB3C5; }
.long-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.qa-list { display: grid; gap: 18px; }
.qa-item { padding: 24px; border-radius: 24px; background: #1A2130; border: 1px solid rgba(241,209,138,.14); }
.qa-item h2 { font-size: 22px; margin-bottom: 10px; }
.contact-card { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.site-footer { background: #0E1420; color: #D6DCEC; border-top: 1px solid rgba(241,209,138,.12); }
.footer-inner { max-width: 1280px; margin: 0 auto; padding: 54px 24px; display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 30px; }
.footer-logo img { width: 168px; max-height: 52px; object-fit: contain; margin-bottom: 16px; }
.footer-brand p { color: #D6DCEC; margin: 0; max-width: 420px; }
.footer-col h2 { font-size: 18px; margin-bottom: 14px; }
.footer-col a { display: block; color: #D6DCEC; margin: 9px 0; }
.footer-col a:hover { color: #F1D18A; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.06); max-width: 1280px; margin: 0 auto; padding: 18px 24px 24px; }
.footer-bottom p { margin: 0; color: #AAB3C5; font-size: 14px; }
@media (max-width: 1080px) {
  .desktop-header { display: none; }
  .mobile-header { display: flex; }
  .header-inner { min-height: 66px; padding: 0 16px; gap: 12px; }
  .hero-grid, .page-hero-inner, .page-grid, .app-section-card { grid-template-columns: 1fr; }
  .hero-inner { padding-top: 54px; }
  .hero-visual img { max-height: 380px; }
  .three-grid, .matrix-grid, .security-grid, .footer-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .alternate-item, .alternate-item.reverse { grid-template-columns: 1fr; }
  .alternate-item.reverse .alt-text, .alternate-item.reverse .alt-image { order: initial; }
}
@media (max-width: 720px) {
  h1 { font-size: 34px; }
  h2 { font-size: 26px; }
  .section, .page-section { padding: 54px 16px; }
  .hero-inner, .page-hero-inner { padding: 48px 16px 34px; }
  .hero-service-cards, .three-grid, .matrix-grid, .security-grid, .faq-grid, .feature-list, .footer-inner, .long-grid, .contact-card { grid-template-columns: 1fr; }
  .section-head { display: block; }
  .stat-strip { grid-template-columns: 1fr; }
  .cat-pill { flex-basis: 100%; border-radius: 24px; }
  .alternate-item, .app-section-card, .notice-box, .content-panel { padding: 20px; border-radius: 24px; }
  .alt-image, .app-image, .page-visual { min-height: 220px; }
  .zone-img { height: 160px; }
  .mobile-logo img { width: 118px; }
  .mobile-top-btn { padding: 0 12px; font-size: 12px; }
}