:root {
  --brand: #597EF7;
  --brand-dark: #1D2B5F;
  --text: #222222;
  --muted: #5B647A;
  --soft: #F6F8FF;
  --soft-2: #ECF0FF;
  --soft-3: #EAF7FF;
  --card: rgba(255,255,255,0.86);
  --line: rgba(89,126,247,0.16);
  --shadow: 0 16px 40px rgba(29,43,95,0.09);
  --radius: 22px;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 14% 8%, rgba(122,196,245,0.22), transparent 26%),
    radial-gradient(circle at 90% 18%, rgba(89,126,247,0.17), transparent 28%),
    linear-gradient(180deg, #F6F8FF 0%, #ECF0FF 48%, #EAF7FF 100%);
  line-height: 1.75;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  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);
}
.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;
}
.brand, .drawer-logo, .footer-logo { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { width: 146px; height: auto; }
.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex: 1;
  min-width: 0;
}
.desktop-nav a {
  text-decoration: none;
  color: #3F4A66;
  font-weight: 700;
  font-size: 14px;
  padding: 9px 10px;
  border-radius: 999px;
  white-space: nowrap;
  transition: all .22s ease;
}
.desktop-nav a:hover,
.desktop-nav a.active {
  color: #597EF7;
  background: rgba(89,126,247,0.10);
}
.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, #7580EE 0%, #597EF7 48%, #7AC4F5 100%);
  color: #FFFFFF;
  font-weight: 700;
  text-decoration: none;
  border: 0;
  box-shadow:
    0 0 10px rgba(89,126,247,0.28),
    0 0 22px rgba(122,196,245,0.20),
    0 10px 24px rgba(89,126,247,0.20);
  transition: all 0.25s ease;
  white-space: nowrap;
}
.main-btn:hover {
  transform: translateY(-1px);
  box-shadow:
    0 0 14px rgba(89,126,247,0.36),
    0 0 28px rgba(122,196,245,0.26),
    0 14px 28px rgba(89,126,247,0.24);
}
.menu-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,0.84);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}
.menu-toggle span {
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: #1D2B5F;
}
.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(10,18,38,0.42);
  opacity: 0;
  visibility: hidden;
  z-index: 10000;
  transition: all .25s ease;
}
.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: min(320px, 86vw);
  height: 100vh;
  z-index: 10001;
  background: linear-gradient(180deg, #FFFFFF 0%, #F6F8FF 100%);
  transform: translateX(-104%);
  transition: transform .28s ease;
  box-shadow: 18px 0 40px rgba(29,43,95,0.18);
  padding: 18px;
  overflow-y: auto;
}
.drawer-open .drawer-mask { opacity: 1; visibility: visible; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.drawer-logo img { width: 132px; }
.drawer-close {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: #1D2B5F;
  font-size: 24px;
  cursor: pointer;
}
.drawer-nav { display: grid; gap: 8px; }
.drawer-nav a {
  text-decoration: none;
  padding: 12px 14px;
  border-radius: 14px;
  color: #3F4A66;
  font-weight: 700;
  background: rgba(89,126,247,0.06);
}
.drawer-nav a.active,
.drawer-nav a:hover { color: #597EF7; background: rgba(89,126,247,0.13); }
.drawer-btn { width: 100%; margin-top: 20px; }
main { width: 100%; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 68px 0; }
.section.compact { padding: 42px 0; }
.section-head { margin-bottom: 26px; max-width: 820px; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #597EF7;
  font-weight: 800;
  letter-spacing: .02em;
  margin-bottom: 10px;
}
.kicker::before {
  content: "";
  width: 28px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(135deg, #597EF7, #7AC4F5);
}
h1, h2, h3 { color: var(--brand-dark); line-height: 1.28; margin: 0 0 14px; }
h1 { font-size: clamp(32px, 4.2vw, 54px); letter-spacing: -0.03em; }
h2 { font-size: clamp(26px, 3vw, 40px); }
h3 { font-size: 21px; }
p { margin: 0 0 14px; color: #3F4A66; }
.lead { font-size: 18px; color: #3F4A66; max-width: 850px; }
.small { font-size: 14px; color: #5B647A; }
.hero-page {
  padding: 74px 0 42px;
  position: relative;
}
.hero-card {
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(255,255,255,0.92), rgba(255,255,255,0.72));
  border-radius: 30px;
  box-shadow: var(--shadow);
  padding: clamp(28px, 5vw, 56px);
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 34px;
  align-items: center;
  overflow: hidden;
}
.hero-card.no-image { grid-template-columns: 1fr; }
.hero-media {
  border-radius: 24px;
  border: 1px solid var(--line);
  background: #fff;
  min-height: 280px;
  overflow: hidden;
  box-shadow: 0 18px 42px rgba(89,126,247,0.14);
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 24px; }
.text-link {
  color: #597EF7;
  font-weight: 800;
  text-decoration: none;
}
.text-link:hover { text-decoration: underline; }
.banner-slider {
  max-width: 1200px;
  margin: 28px auto 36px;
  border-radius: 20px;
  background: #101827;
  box-shadow: 0 22px 48px rgba(16,24,39,0.20);
  overflow: hidden;
  position: relative;
  height: 410px;
}
.banner-track, .banner-slide { height: 100%; }
.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .45s ease;
}
.banner-slide.active { opacity: 1; z-index: 1; }
.banner-slide img { width: 100%; height: 100%; object-fit: contain; background: #101827; }
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,0.42);
  border-radius: 999px;
  background: rgba(255,255,255,0.18);
  color: #fff;
  font-size: 30px;
  cursor: pointer;
  backdrop-filter: blur(10px);
}
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.banner-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.banner-dot {
  width: 10px;
  height: 10px;
  border: 0;
  border-radius: 999px;
  background: rgba(255,255,255,0.62);
  cursor: pointer;
  transition: all .2s ease;
}
.banner-dot.active {
  width: 28px;
  background: linear-gradient(135deg, #597EF7, #7AC4F5);
}
.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.quick-card, .info-card, .content-card, .faq-item, .notice-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}
.quick-card {
  padding: 18px;
  text-decoration: none;
  transition: all .24s ease;
}
.quick-card:hover { transform: translateY(-3px); border-color: rgba(89,126,247,0.35); }
.quick-card .num, .info-card .num {
  display: inline-flex;
  width: 38px;
  height: 38px;
  border-radius: 14px;
  align-items: center;
  justify-content: center;
  color: #597EF7;
  font-weight: 900;
  background: rgba(89,126,247,0.10);
  margin-bottom: 12px;
}
.quick-card strong { display: block; color: #1D2B5F; font-size: 18px; margin-bottom: 4px; }
.quick-card span { color: #5B647A; font-size: 14px; }
.intro-strip {
  border: 1px solid var(--line);
  border-radius: 26px;
  background: linear-gradient(135deg, rgba(255,255,255,0.92), rgba(234,247,255,0.76));
  box-shadow: var(--shadow);
  padding: 28px 32px;
}
.info-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.info-card { padding: 24px; }
.info-card ul, .check-list { margin: 14px 0 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.info-card li, .check-list li {
  position: relative;
  padding-left: 20px;
  color: #5B647A;
}
.info-card li::before, .check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .76em;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, #597EF7, #7AC4F5);
}
.feature-stack { display: grid; gap: 22px; }
.feature-row {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 26px;
  align-items: center;
  background: rgba(255,255,255,0.76);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 22px;
}
.feature-row:nth-child(even) .feature-img { order: 2; }
.feature-img { border-radius: 24px; overflow: hidden; border: 1px solid var(--line); background: #fff; }
.feature-img img { width: 100%; height: 300px; object-fit: cover; }
.feature-copy { padding: 10px 12px; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.content-card { overflow: hidden; }
.content-card img { width: 100%; height: 190px; object-fit: cover; }
.content-card-body { padding: 20px; }
.tag {
  display: inline-flex;
  padding: 5px 11px;
  border-radius: 999px;
  color: #597EF7;
  background: rgba(89,126,247,0.10);
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 10px;
}
.app-panel, .support-panel {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 28px;
  align-items: center;
  background: linear-gradient(135deg, rgba(255,255,255,0.92), rgba(234,247,255,0.82));
  border: 1px solid var(--line);
  border-radius: 30px;
  box-shadow: var(--shadow);
  padding: 28px;
}
.app-panel img, .support-panel img { width: 100%; border-radius: 24px; border: 1px solid var(--line); object-fit: cover; }
.pill-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; margin: 18px 0 8px; }
.pill {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.72);
  color: #3F4A66;
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 700;
}
.security-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.notice-card { padding: 22px; }
.notice-card strong { color: #1D2B5F; display: block; font-size: 18px; margin-bottom: 8px; }
.faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.faq-item { padding: 22px; }
.faq-item h3 { font-size: 18px; }
.responsible-box {
  border-radius: 28px;
  padding: 34px;
  border: 1px solid rgba(89,126,247,0.18);
  background: linear-gradient(135deg, rgba(29,43,95,0.96), rgba(89,126,247,0.92));
  color: #fff;
  box-shadow: 0 22px 44px rgba(29,43,95,0.16);
}
.responsible-box h2, .responsible-box p, .responsible-box li { color: #fff; }
.responsible-box .check-list li::before { background: #fff; }
.page-layout { display: grid; grid-template-columns: 1fr 340px; gap: 26px; align-items: start; }
.article-card {
  background: rgba(255,255,255,0.84);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: clamp(24px, 4vw, 42px);
}
.article-card h2 { margin-top: 28px; }
.article-card h2:first-child { margin-top: 0; }
.article-card img { border-radius: 24px; border: 1px solid var(--line); margin: 22px 0; width: 100%; max-height: 420px; object-fit: cover; }
.sidebar-card {
  position: sticky;
  top: 96px;
  background: rgba(255,255,255,0.78);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 22px;
}
.sidebar-card a { display: block; color: #597EF7; text-decoration: none; font-weight: 800; margin-top: 10px; }
.stat-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; margin-top: 20px; }
.stat-box {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(89,126,247,0.07);
}
.stat-box strong { display: block; color: #1D2B5F; font-size: 24px; }
.contact-list { display: grid; gap: 14px; margin-top: 20px; }
.contact-item { padding: 18px; border-radius: 18px; border: 1px solid var(--line); background: rgba(255,255,255,0.72); }
.site-footer {
  background: linear-gradient(135deg, #1F1F1F 0%, #2B2B2B 100%);
  color: #E8ECF5;
  margin-top: 70px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 50px 24px 34px;
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 30px;
}
.footer-logo img { width: 150px; margin-bottom: 16px; }
.site-footer p, .site-footer a, .site-footer span { color: #E8ECF5; }
.footer-note { opacity: .8; font-size: 14px; }
.footer-links h3 { color: #FFFFFF; font-size: 18px; }
.footer-links a { display: block; text-decoration: none; margin: 8px 0; opacity: .88; }
.footer-links a:hover { color: #7AC4F5; opacity: 1; }
.footer-bottom {
  border-top: 1px solid rgba(232,236,245,0.12);
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 24px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
  opacity: .84;
}
@media (max-width: 1120px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .brand { position: absolute; left: 50%; transform: translateX(-50%); }
  .header-inner { min-height: 68px; }
  .quick-grid, .info-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-layout { grid-template-columns: 1fr; }
  .sidebar-card { position: static; }
}
@media (max-width: 820px) {
  .header-inner { padding: 0 14px; }
  .brand img { width: 118px; }
  .header-btn { padding: 10px 16px; font-size: 14px; }
  .container { padding: 0 16px; }
  .section { padding: 48px 0; }
  .hero-page { padding: 44px 0 22px; }
  .hero-card, .app-panel, .support-panel, .feature-row { grid-template-columns: 1fr; }
  .hero-media { min-height: 220px; }
  .banner-slider { height: 240px; margin: 18px 16px 28px; }
  .feature-row:nth-child(even) .feature-img { order: 0; }
  .feature-img img { height: 230px; }
  .card-grid, .security-grid, .faq-grid, .footer-inner { grid-template-columns: 1fr; }
  .quick-grid { display: flex; overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x mandatory; }
  .quick-card { min-width: 210px; scroll-snap-align: start; }
  .info-grid, .pill-grid, .stat-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .slider-btn { width: 38px; height: 38px; font-size: 24px; }
}
@media (max-width: 460px) {
  .header-btn { padding: 9px 12px; }
  .menu-toggle { width: 38px; height: 38px; }
  .banner-slider { height: 190px; border-radius: 16px; }
  .hero-card, .article-card, .intro-strip, .responsible-box { border-radius: 22px; padding: 22px; }
}