* { box-sizing: border-box; }
:root {
  --primary: rgb(89, 126, 247);
  --primary-hex: #597EF7;
  --primary-dark: #1D2B5F;
  --text: #222222;
  --muted: #5B647A;
  --soft: #ECF0FF;
  --page: #F6F8FF;
  --sky: #EAF7FF;
  --white: #FFFFFF;
  --line: rgba(89, 126, 247, 0.16);
  --shadow: 0 16px 40px rgba(89, 126, 247, 0.10);
}
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: #F6F8FF;
  color: var(--text);
  line-height: 1.72;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 9999;
  background: linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 52%, #EAF7FF 100%);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(89, 126, 247, 0.10);
  border-bottom: 1px solid rgba(89, 126, 247, 0.12);
}
.site-header.is-scrolled { box-shadow: 0 14px 36px rgba(89, 126, 247, 0.16); }
.header-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 26px;
}
.brand img { width: 132px; height: auto; object-fit: contain; }
.main-nav { flex: 1; display: flex; justify-content: center; gap: 6px; align-items: center; }
.main-nav a {
  padding: 10px 12px;
  border-radius: 999px;
  color: #1D2B5F;
  font-size: 15px;
  font-weight: 700;
  transition: .25s ease;
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.is-active {
  color: rgb(89, 126, 247);
  background: rgba(255,255,255,0.72);
  box-shadow: inset 0 0 0 1px rgba(89,126,247,0.14);
}
.main-btn {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  background: linear-gradient(135deg, #7580EE 0%, #597EF7 48%, #7AC4F5 100%);
  color: #FFFFFF;
  border-radius: 999px;
  border: 0;
  font-weight: 800;
  letter-spacing: .02em;
  box-shadow: 0 10px 24px rgba(89, 126, 247, 0.28);
  transition: transform .25s ease, box-shadow .25s ease;
}
.main-btn::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,.85) 35%, transparent 70%);
  transform: translateX(-120%);
  animation: btnShine 2.4s infinite;
  z-index: -1;
}
.main-btn::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  border: 1px solid rgba(255,255,255,.65);
  box-shadow:
    0 0 8px rgba(122,196,245,.55),
    0 0 18px rgba(89,126,247,.35);
  pointer-events: none;
}
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(89, 126, 247, 0.34); }
@keyframes btnShine {
  0% { transform: translateX(-120%); }
  55% { transform: translateX(120%); }
  100% { transform: translateX(120%); }
}
.mobile-header { display: none; }
.drawer-mask, .mobile-drawer { display: none; }
main { min-height: 68vh; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.section { padding: 76px 0; }
.section.compact { padding: 46px 0; }
.section-head { max-width: 780px; margin-bottom: 28px; }
.section-eyebrow, .tag, .number-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(89,126,247,0.10);
  color: rgb(89, 126, 247);
  font-size: 13px;
  font-weight: 800;
}
h1, h2, h3 { margin: 0; color: #1D2B5F; line-height: 1.22; }
h1 { font-size: clamp(34px, 5.2vw, 62px); letter-spacing: -0.04em; }
h2 { font-size: clamp(26px, 3.2vw, 40px); margin-top: 12px; }
h3 { font-size: 21px; }
p { margin: 0; color: #3F4A66; }
.lead { font-size: 18px; color: #3F4A66; }
.text-link {
  display: inline-flex;
  align-items: center;
  color: rgb(89, 126, 247);
  font-weight: 800;
  margin-top: 16px;
}
.text-link::after { content: "›"; padding-left: 7px; font-size: 20px; line-height: 1; }
.card, .zone-card, .info-card, .plain-card {
  background: rgba(255,255,255,0.86);
  border: 1px solid rgba(89,126,247,0.16);
  box-shadow: 0 16px 40px rgba(89,126,247,0.10);
  border-radius: 26px;
}
.hero-section {
  background:
    radial-gradient(circle at 18% 20%, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0) 32%),
    linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 52%, #EAF7FF 100%);
  padding: 78px 0 64px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  gap: 42px;
  align-items: center;
}
.hero-copy .hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; }
.hero-copy h1 { color: rgb(89, 126, 247); margin-bottom: 20px; }
.hero-copy p { max-width: 640px; color: #3F4A66; font-size: 18px; }
.hero-actions { margin: 28px 0 22px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero-service-tags { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-service-tags span {
  padding: 8px 13px;
  border-radius: 999px;
  color: #1D2B5F;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(89,126,247,0.15);
  font-weight: 800;
}
.hero-visual {
  padding: 22px;
  border-radius: 34px;
  background: rgba(255,255,255,0.60);
  border: 1px solid rgba(255,255,255,0.78);
  box-shadow: 0 24px 70px rgba(89, 126, 247, 0.18);
  backdrop-filter: blur(14px);
}
.hero-visual img {
  width: 100%;
  max-height: 405px;
  object-fit: contain;
  border-radius: 24px;
  margin: 0 auto;
}
.hero-mini-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.hero-mini-cards div {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255,255,255,0.78);
  border: 1px solid rgba(89,126,247,0.14);
}
.hero-mini-cards strong { display: block; color: #1D2B5F; font-size: 15px; }
.hero-mini-cards span { display: block; color: #5B647A; font-size: 12px; margin-top: 4px; }
.quick-nav-wrap { margin-top: -24px; position: relative; z-index: 3; }
.quick-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.quick-item { padding: 18px; border-radius: 22px; background: rgba(255,255,255,0.88); border: 1px solid rgba(89,126,247,0.16); box-shadow: 0 12px 30px rgba(89,126,247,0.08); }
.quick-item strong { display: block; color: #1D2B5F; margin: 8px 0 4px; font-size: 18px; }
.quick-item p { color: #5B647A; font-size: 14px; }
.overview-strip { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.overview-card { padding: 22px; background: linear-gradient(135deg, rgba(255,255,255,0.92), rgba(236,240,255,0.72)); }
.overview-card h3 { margin: 10px 0 8px; }
.feature-stack { display: grid; gap: 28px; }
.feature-row { display: grid; grid-template-columns: .95fr 1.05fr; gap: 30px; align-items: center; padding: 28px; }
.feature-row.reverse { grid-template-columns: 1.05fr .95fr; }
.feature-media { border-radius: 24px; background: linear-gradient(135deg, rgba(236,240,255,0.72), rgba(234,247,255,0.88)); border: 1px solid rgba(89,126,247,0.14); padding: 18px; }
.content-img, .zone-card img, .app-section img, .hero-visual img, .page-visual img, .feature-media img, .image-card img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}
.feature-media img { width: 100%; max-height: 330px; margin: 0 auto; border-radius: 18px; }
.feature-content p { margin: 16px 0; }
.point-list { display: grid; gap: 10px; margin: 18px 0 0; padding: 0; list-style: none; }
.point-list li { position: relative; padding-left: 22px; color: #3F4A66; }
.point-list li::before { content: ""; position: absolute; left: 0; top: .76em; width: 8px; height: 8px; border-radius: 50%; background: rgb(89,126,247); box-shadow: 0 0 0 4px rgba(89,126,247,0.12); }
.zones { background: linear-gradient(180deg, #F6F8FF 0%, #ECF0FF 100%); }
.zone-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.zone-card { overflow: hidden; min-height: 100%; padding: 18px; display: flex; flex-direction: column; }
.zone-card.wide { grid-column: span 2; }
.zone-card img { width: 100%; max-height: 170px; margin: 0 auto 16px; border-radius: 18px; background: #F6F8FF; }
.zone-card h3 { margin: 10px 0; }
.zone-card p { font-size: 15px; }
.zone-card .text-link { margin-top: auto; padding-top: 12px; }
.app-section { background: linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 55%, #EAF7FF 100%); border-radius: 34px; padding: 34px; display: grid; grid-template-columns: .8fr 1.2fr; gap: 30px; align-items: center; border: 1px solid rgba(89,126,247,0.15); box-shadow: var(--shadow); }
.app-section img { max-height: 430px; margin: 0 auto; }
.feature-list-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; margin-top: 22px; }
.feature-pill { padding: 13px 15px; border-radius: 18px; background: rgba(255,255,255,0.74); border: 1px solid rgba(89,126,247,0.14); color: #1D2B5F; font-weight: 800; }
.support-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 28px; align-items: start; }
.support-panel { padding: 28px; background: linear-gradient(135deg, rgba(255,255,255,.92), rgba(234,247,255,.82)); }
.security-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.security-card { padding: 18px; background: rgba(255,255,255,.88); border: 1px solid rgba(89,126,247,.16); border-radius: 22px; box-shadow: 0 10px 24px rgba(89,126,247,.08); }
.security-card h3 { font-size: 18px; margin: 8px 0; }
.faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.faq-item { padding: 22px; }
.faq-item h3 { margin-bottom: 10px; font-size: 20px; }
.notice-box { padding: 24px; border-radius: 26px; background: linear-gradient(135deg, rgba(29,43,95,0.96), rgba(43,43,43,0.96)); color: #fff; box-shadow: 0 18px 44px rgba(29,43,95,0.16); }
.notice-box h2, .notice-box h3 { color: #fff; }
.notice-box p, .notice-box li { color: rgba(255,255,255,0.84); }
.notice-list { margin: 16px 0 0; padding-left: 20px; }
.page-hero { padding: 62px 0; background: radial-gradient(circle at 18% 20%, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0) 32%), linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 52%, #EAF7FF 100%); }
.page-hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 36px; align-items: center; }
.page-hero h1 { color: rgb(89,126,247); margin: 16px 0 18px; }
.page-hero p { font-size: 18px; }
.page-visual { padding: 20px; border-radius: 30px; background: rgba(255,255,255,0.66); border: 1px solid rgba(89,126,247,0.15); box-shadow: var(--shadow); }
.page-visual img { max-height: 360px; margin: 0 auto; border-radius: 22px; }
.page-section { padding: 62px 0; }
.content-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; align-items: start; }
.article-card { padding: 28px; }
.article-card p + p { margin-top: 16px; }
.side-card { padding: 24px; position: sticky; top: 100px; }
.side-card ul { margin: 14px 0 0; padding-left: 20px; color: #3F4A66; }
.tile-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; margin-top: 24px; }
.tile { padding: 22px; }
.tile h3 { margin: 8px 0; }
.steps { counter-reset: step; display: grid; gap: 14px; margin-top: 22px; }
.step { counter-increment: step; padding: 20px; border-radius: 22px; background: rgba(255,255,255,.88); border: 1px solid rgba(89,126,247,.16); }
.step::before { content: counter(step, decimal-leading-zero); display: inline-flex; margin-bottom: 8px; color: rgb(89,126,247); font-weight: 900; }
.image-card { padding: 18px; }
.image-card img { max-height: 340px; margin: 0 auto; border-radius: 20px; }
.site-footer { background: linear-gradient(135deg, #1F1F1F 0%, #2B2B2B 100%); color: #fff; padding-top: 54px; }
.footer-inner { width: min(1180px, calc(100% - 32px)); margin: 0 auto; display: grid; grid-template-columns: 1.4fr .7fr .7fr; gap: 34px; }
.footer-brand img { width: 138px; margin-bottom: 18px; }
.footer-brand p, .footer-links a, .footer-bottom span { color: rgba(255,255,255,0.76); }
.footer-warning { margin-top: 14px; }
.footer-links h3 { color: #fff; margin-bottom: 12px; font-size: 18px; }
.footer-links a { display: block; padding: 6px 0; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.10); margin-top: 40px; padding: 18px calc((100% - min(1180px, calc(100% - 32px))) / 2); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
@media (max-width: 1080px) {
  .main-nav a { padding: 9px 8px; font-size: 14px; }
  .header-inner { gap: 14px; }
  .zone-grid { grid-template-columns: repeat(3, 1fr); }
  .quick-nav, .overview-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .desktop-header { display: none; }
  .mobile-header {
    width: 100%;
    min-height: 64px;
    display: grid;
    grid-template-columns: 64px 1fr auto;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
    background: linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 52%, #EAF7FF 100%);
  }
  .menu-toggle { width: 46px; height: 46px; border: 0; border-radius: 14px; background: rgba(255,255,255,.76); display: inline-flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; box-shadow: inset 0 0 0 1px rgba(89,126,247,.14); }
  .menu-toggle span { width: 21px; height: 2px; background: #1D2B5F; border-radius: 2px; }
  .mobile-brand { justify-self: center; }
  .mobile-brand img { width: 112px; object-fit: contain; }
  .mobile-entry { min-height: 38px; padding: 0 13px; font-size: 13px; }
  .drawer-mask { display: block; position: fixed; inset: 0; background: rgba(0,0,0,.40); opacity: 0; pointer-events: none; transition: opacity .25s ease; z-index: 10000; }
  .mobile-drawer { display: block; position: fixed; left: 0; top: 0; width: min(84vw, 320px); height: 100vh; background: linear-gradient(135deg, #FFFFFF 0%, #ECF0FF 100%); transform: translateX(-105%); transition: transform .28s ease; z-index: 10001; padding: 18px; box-shadow: 20px 0 48px rgba(29,43,95,.18); overflow-y: auto; }
  .drawer-open { overflow: hidden; }
  .drawer-open .drawer-mask { opacity: 1; pointer-events: auto; }
  .drawer-open .mobile-drawer { transform: translateX(0); }
  .drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid rgba(89,126,247,.12); }
  .drawer-head img { width: 122px; }
  .drawer-close { width: 38px; height: 38px; border: 0; border-radius: 12px; background: rgba(89,126,247,.10); color: #1D2B5F; font-size: 26px; line-height: 1; }
  .drawer-nav { display: grid; gap: 10px; padding-top: 16px; }
  .drawer-nav a { padding: 13px 14px; border-radius: 16px; background: rgba(255,255,255,.72); border: 1px solid rgba(89,126,247,.12); color: #1D2B5F; font-weight: 800; }
  .drawer-nav a.is-active { color: rgb(89,126,247); background: rgba(89,126,247,.10); }
  .hero-grid, .page-hero-grid, .app-section, .support-grid, .content-grid { grid-template-columns: 1fr; }
  .hero-section { padding: 54px 0 48px; }
  .hero-copy { order: 1; }
  .hero-visual { order: 2; }
  .hero-actions { justify-content: flex-start; }
  .feature-row, .feature-row.reverse { grid-template-columns: 1fr; }
  .feature-row.reverse .feature-content { order: 1; }
  .feature-row.reverse .feature-media { order: 2; }
  .faq-grid, .security-cards, .tile-grid { grid-template-columns: 1fr; }
  .side-card { position: static; }
  .footer-inner { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 24px, 1180px); }
  .section, .page-section { padding: 48px 0; }
  .hero-section { padding-top: 42px; }
  h1 { font-size: 34px; }
  h2 { font-size: 27px; }
  .hero-copy p, .page-hero p, .lead { font-size: 16px; }
  .quick-nav { display: flex; overflow-x: auto; padding-bottom: 10px; scroll-snap-type: x mandatory; }
  .quick-item { min-width: 72%; scroll-snap-align: start; }
  .overview-strip, .zone-grid, .feature-list-grid { grid-template-columns: 1fr; }
  .zone-card.wide { grid-column: auto; }
  .hero-mini-cards { grid-template-columns: 1fr; }
  .feature-row, .app-section, .support-panel, .article-card { padding: 22px; border-radius: 24px; }
  .app-section { padding: 22px; }
  .footer-bottom { padding-left: 12px; padding-right: 12px; }
}