:root {
  --page-bg: #E6EBF2;
  --nav-bg: #F5F7FB;
  --surface: #FFFFFF;
  --surface-soft: #EEF2F7;
  --surface-deep: #DDE4EE;
  --blue: #289CFF;
  --blue-dark: #1E90F0;
  --nav-text: #4E5F7A;
  --text: #243447;
  --muted: #66788A;
  --note: #8A9AAF;
  --footer: #243447;
  --footer-text: #EAF3FF;
  --border: rgba(40, 156, 255, 0.16);
  --shadow: 0 14px 36px rgba(56, 92, 138, 0.12);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --shell: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--page-bg);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
body.drawer-open { overflow: hidden; }
img { max-width: 100%; height: auto; vertical-align: middle; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
.shell { width: min(calc(100% - 40px), var(--shell)); margin-inline: auto; }
.site-main { min-height: 70vh; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 9999;
  background: rgba(245, 247, 251, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 8px 24px rgba(56, 92, 138, 0.10);
}
.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.logo, .header-action { flex: 0 0 auto; }
.logo { display: inline-flex; align-items: center; min-width: 118px; }
.logo img { display: block; width: auto; max-width: 150px; max-height: 52px; object-fit: contain; }
.nav-wrap { flex: 1 1 auto; min-width: 0; display: flex; justify-content: center; }
.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(11px, 1.25vw, 20px);
  white-space: nowrap;
  flex-wrap: nowrap;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 72px;
  border: 0;
  background: transparent;
  color: var(--nav-text);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  padding: 0 2px;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--blue);
  transform: scaleX(0);
  transition: transform .2s ease;
}
.nav-link:hover, .nav-link:focus-visible, .nav-link.active,
.dropdown.active > .nav-link { color: var(--blue); }
.nav-link:hover::after, .nav-link:focus-visible::after, .nav-link.active::after,
.dropdown.active > .nav-link::after { transform: scaleX(1); }
.dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  top: calc(100% - 5px);
  left: 50%;
  min-width: 190px;
  padding: 9px;
  background: #FFFFFF;
  border: 1px solid rgba(40, 156, 255, 0.12);
  border-radius: 14px;
  box-shadow: 0 18px 38px rgba(56, 92, 138, 0.16);
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 10px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.dropdown-menu-right { left: auto; right: 0; transform: translate(0, 10px); }
.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu,
.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.dropdown:hover .dropdown-menu-right,
.dropdown:focus-within .dropdown-menu-right,
.dropdown.open .dropdown-menu-right { transform: translate(0, 0); }
.dropdown-menu a {
  display: block;
  padding: 10px 14px;
  color: var(--nav-text);
  white-space: nowrap;
  border-radius: 9px;
  font-weight: 600;
}
.dropdown-menu a:hover, .dropdown-menu a:focus-visible {
  color: var(--blue);
  background: rgba(40, 156, 255, 0.08);
}
.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 26px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
  color: #FFFFFF;
  box-shadow: 0 10px 24px rgba(36, 155, 255, 0.25);
  font-weight: 800;
  letter-spacing: .06em;
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}
.main-btn:hover, .main-btn:focus-visible {
  background: linear-gradient(180deg, #48D9F7 0%, #1E90F0 100%);
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(36, 155, 255, 0.30);
}
.compact-btn { min-width: 88px; padding-inline: 22px; }
.menu-toggle { display: none; }

.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 10010;
  background: rgba(25, 45, 70, .48);
  opacity: 0;
  transition: opacity .25s ease;
}
.drawer-overlay.visible { opacity: 1; }
.mobile-drawer {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 10020;
  width: min(84vw, 320px);
  overflow-y: auto;
  background: #FFFFFF;
  box-shadow: 18px 0 42px rgba(35, 60, 92, .22);
  transform: translateX(-105%);
  transition: transform .28s ease;
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-head {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--nav-bg);
}
.drawer-logo img { max-width: 140px; max-height: 48px; object-fit: contain; }
.drawer-close {
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: var(--surface-soft);
  color: var(--nav-text);
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
}
.drawer-nav { padding: 13px 14px 28px; }
.drawer-nav a {
  display: flex;
  align-items: center;
  min-height: 46px;
  padding: 8px 13px;
  border-radius: 11px;
  color: var(--nav-text);
  font-weight: 700;
}
.drawer-nav a:hover, .drawer-nav a:focus-visible { color: var(--blue); background: rgba(40, 156, 255, .08); }

.banner-slider {
  width: min(calc(100% - 40px), var(--shell));
  aspect-ratio: 1920 / 650;
  margin: 28px auto 38px;
  overflow: hidden;
  position: relative;
  border-radius: 22px;
  background: #FFFFFF;
  box-shadow: 0 18px 40px rgba(56, 92, 138, 0.12);
}
.banner-track, .banner-slide { position: absolute; inset: 0; }
.banner-slide {
  opacity: 0;
  visibility: hidden;
  transition: opacity .55s ease, visibility .55s ease;
}
.banner-slide.active { opacity: 1; visibility: visible; }
.banner-slide img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  background: #FFFFFF;
}
.banner-caption, .banner-text, .slide-title, .slide-desc, .slide-content, .slide-card, .banner-card { display: none !important; }
.slider-arrow {
  position: absolute;
  z-index: 5;
  top: 50%;
  transform: translateY(-50%);
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255,255,255,.7);
  border-radius: 50%;
  background: rgba(36, 52, 71, .38);
  color: #FFFFFF;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(4px);
}
.slider-arrow:hover, .slider-arrow:focus-visible { background: rgba(36, 155, 255, .84); }
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.slider-dots {
  position: absolute;
  z-index: 5;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
}
.slider-dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 1px solid rgba(255,255,255,.85);
  border-radius: 50%;
  background: rgba(36, 52, 71, .38);
  cursor: pointer;
}
.slider-dot.active { width: 26px; border-radius: 999px; background: #FFFFFF; }

.page-hero { padding: 58px 0 32px; }
.hero-card {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, .88fr);
  align-items: center;
  gap: clamp(28px, 5vw, 64px);
  min-height: 390px;
  padding: clamp(30px, 5vw, 62px);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(255,255,255,.96), rgba(238,242,247,.92));
  box-shadow: var(--shadow);
}
.hero-card.no-image { grid-template-columns: 1fr; min-height: 310px; }
.hero-card::before {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  right: -90px;
  top: -110px;
  border-radius: 50%;
  background: rgba(40, 156, 255, .10);
}
.hero-copy { position: relative; z-index: 1; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .08em;
}
.eyebrow::before { content: ""; width: 24px; height: 3px; border-radius: 3px; background: var(--blue); }
h1, h2, h3, .section-title { color: var(--blue); line-height: 1.28; }
h1 { margin: 0 0 18px; font-size: clamp(34px, 5vw, 58px); letter-spacing: -.03em; }
h2 { margin: 0 0 16px; font-size: clamp(26px, 3.4vw, 38px); }
h3 { margin: 0 0 10px; font-size: 21px; }
p { margin: 0 0 14px; }
.lead { max-width: 760px; color: var(--muted); font-size: clamp(17px, 2vw, 20px); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; margin-top: 25px; }
.text-link { color: var(--blue); font-weight: 800; }
.text-link:hover, .text-link:focus-visible { text-decoration: underline; text-underline-offset: 4px; }
.hero-image { position: relative; z-index: 1; }
.hero-image img {
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  border-radius: 18px;
  background: #FFFFFF;
  box-shadow: 0 14px 32px rgba(56, 92, 138, .13);
}

.section { padding: 34px 0 50px; }
.section.alt { background: rgba(245,247,251,.58); }
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}
.section-head p { max-width: 720px; color: var(--muted); }
.section-tag { display: block; margin-bottom: 8px; color: var(--blue); font-weight: 800; font-size: 14px; }
.card-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.card-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card, .zone-card, .info-card, .review-card {
  background: rgba(255,255,255,.92);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 14px 36px rgba(56,92,138,.10);
}
.card, .info-card, .review-card { padding: 25px; }
.card {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 18px 40px rgba(56,92,138,.14); }
.card p, .info-card p, .review-card p { color: var(--muted); }
.card .text-link { margin-top: auto; padding-top: 10px; }
.number-badge {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 15px;
  border-radius: 12px;
  background: rgba(40,156,255,.10);
  color: var(--blue);
  font-weight: 900;
}
.zone-card { overflow: hidden; }
.zone-media { background: var(--surface-soft); }
.zone-media img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: contain; }
.zone-body { padding: 24px; }
.zone-body p { color: var(--muted); }
.content-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .92fr);
  align-items: center;
  gap: clamp(28px, 5vw, 66px);
}
.content-split.reverse { grid-template-columns: minmax(300px, .92fr) minmax(0, 1fr); }
.content-split.reverse .split-media { order: -1; }
.split-copy { padding: 6px 0; }
.split-copy p { color: var(--muted); }
.split-media img, .content-img {
  width: 100%;
  max-height: 430px;
  object-fit: contain;
  border-radius: var(--radius-xl);
  background: #FFFFFF;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.feature-list { display: grid; gap: 14px; margin: 22px 0 0; padding: 0; list-style: none; }
.feature-list li {
  position: relative;
  padding: 14px 16px 14px 46px;
  border-radius: 13px;
  background: rgba(255,255,255,.76);
  border: 1px solid var(--border);
  color: var(--muted);
}
.feature-list li::before {
  content: "✓";
  position: absolute;
  left: 16px;
  top: 13px;
  color: var(--blue);
  font-weight: 900;
}
.steps { counter-reset: step; display: grid; gap: 16px; }
.step-item {
  counter-increment: step;
  position: relative;
  padding: 22px 22px 22px 76px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.92);
  border: 1px solid var(--border);
  box-shadow: 0 10px 28px rgba(56,92,138,.08);
}
.step-item::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 20px;
  top: 20px;
  color: var(--blue);
  font-weight: 900;
  font-size: 20px;
}
.step-item h3 { margin-bottom: 6px; }
.step-item p { color: var(--muted); margin: 0; }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.review-card { position: relative; padding-top: 54px; }
.review-card::before {
  content: "“";
  position: absolute;
  left: 23px;
  top: 4px;
  color: rgba(40,156,255,.28);
  font-size: 68px;
  line-height: 1;
  font-family: Georgia, serif;
}
.review-card strong { display: block; margin-top: 14px; color: var(--nav-text); }
.notice-box {
  padding: 26px 28px;
  border: 1px solid rgba(40,156,255,.20);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(255,255,255,.94), rgba(221,228,238,.85));
  box-shadow: var(--shadow);
}
.notice-box h2, .notice-box h3 { margin-bottom: 10px; }
.notice-box p { color: var(--muted); }
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 13px;
  border-radius: 999px;
  background: rgba(40,156,255,.09);
  color: var(--blue);
  font-weight: 800;
  font-size: 14px;
}

.faq-list { display: grid; gap: 14px; }
.faq-item {
  overflow: hidden;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.92);
  border: 1px solid var(--border);
  box-shadow: 0 10px 28px rgba(56,92,138,.08);
}
.faq-question {
  width: 100%;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 20px;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  font-weight: 800;
  cursor: pointer;
}
.faq-question span:last-child { color: var(--blue); font-size: 24px; transition: transform .2s ease; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .28s ease; }
.faq-answer-inner { padding: 0 20px 20px; color: var(--muted); }
.faq-item.open .faq-question { color: var(--blue); }
.faq-item.open .faq-question span:last-child { transform: rotate(45deg); }

.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.info-table { width: 100%; min-width: 680px; border-collapse: collapse; background: #FFFFFF; }
.info-table th, .info-table td { padding: 16px 18px; border-bottom: 1px solid var(--border); text-align: left; }
.info-table th { background: var(--surface-soft); color: var(--blue); }
.info-table td { color: var(--muted); }
.contact-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.contact-item { padding: 24px; border-radius: var(--radius-lg); background: #FFFFFF; border: 1px solid var(--border); box-shadow: var(--shadow); }
.contact-item strong { display: block; color: var(--blue); font-size: 18px; margin-bottom: 8px; }
.contact-item p { color: var(--muted); }

.site-footer { margin-top: 54px; background: var(--footer); color: var(--footer-text); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 42px; padding: 56px 0 34px; }
.footer-logo { display: inline-block; margin-bottom: 16px; }
.footer-logo img { max-width: 150px; max-height: 50px; object-fit: contain; filter: drop-shadow(0 4px 12px rgba(0,0,0,.12)); }
.footer-brand p { max-width: 460px; color: rgba(234,243,255,.76); }
.site-footer h2 { margin: 0 0 14px; color: #FFFFFF; font-size: 17px; }
.site-footer a { display: block; width: fit-content; margin: 8px 0; color: rgba(234,243,255,.76); }
.site-footer a:hover, .site-footer a:focus-visible { color: #FFFFFF; }
.compliance-note { padding: 22px 0; border-top: 1px solid rgba(234,243,255,.13); border-bottom: 1px solid rgba(234,243,255,.13); }
.compliance-note p { margin: 0; color: rgba(234,243,255,.72); font-size: 14px; }
.footer-bottom { padding: 18px 20px; text-align: center; color: rgba(234,243,255,.60); font-size: 14px; }

@media (max-width: 1160px) {
  .desktop-nav { gap: 11px; }
  .nav-link { font-size: 14px; }
  .logo { min-width: 105px; }
  .logo img { max-width: 130px; }
  .compact-btn { min-width: 80px; padding-inline: 18px; }
}

@media (max-width: 1023px) {
  .shell { width: min(calc(100% - 28px), var(--shell)); }
  .header-inner { min-height: 66px; gap: 12px; }
  .nav-wrap { display: none; }
  .menu-toggle {
    flex: 0 0 auto;
    width: 42px;
    height: 42px;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border: 0;
    border-radius: 12px;
    background: rgba(40,156,255,.09);
    cursor: pointer;
  }
  .menu-toggle span { width: 21px; height: 2px; border-radius: 2px; background: var(--nav-text); }
  .logo { min-width: 0; position: absolute; left: 50%; transform: translateX(-50%); }
  .logo img { max-width: 125px; max-height: 44px; }
  .compact-btn { min-width: 76px; min-height: 40px; padding-inline: 17px; font-size: 14px; }
  .banner-slider { width: min(calc(100% - 28px), var(--shell)); margin-top: 20px; border-radius: 16px; }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card-grid.three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-card, .content-split, .content-split.reverse { grid-template-columns: 1fr; }
  .content-split.reverse .split-media { order: 0; }
  .hero-image { max-width: 700px; }
  .footer-grid { grid-template-columns: 1.5fr repeat(2, 1fr); }
  .footer-grid > :last-child { grid-column: 2 / 4; }
}

@media (max-width: 680px) {
  body { line-height: 1.68; }
  .shell { width: min(calc(100% - 24px), var(--shell)); }
  .banner-slider { width: calc(100% - 24px); aspect-ratio: 16 / 7; margin: 14px auto 26px; border-radius: 13px; }
  .slider-arrow { width: 38px; height: 38px; font-size: 23px; }
  .slider-prev { left: 9px; }
  .slider-next { right: 9px; }
  .slider-dots { bottom: 10px; }
  .slider-dot { width: 8px; height: 8px; }
  .slider-dot.active { width: 21px; }
  .page-hero { padding: 30px 0 18px; }
  .hero-card { min-height: 0; padding: 27px 22px; border-radius: 18px; gap: 26px; }
  .hero-card.no-image { min-height: 0; }
  h1 { font-size: clamp(31px, 11vw, 44px); }
  h2 { font-size: 27px; }
  h3 { font-size: 20px; }
  .lead { font-size: 17px; }
  .section { padding: 26px 0 36px; }
  .section-head { align-items: flex-start; flex-direction: column; gap: 5px; margin-bottom: 18px; }
  .card-grid, .card-grid.three, .card-grid.two, .review-grid, .contact-panel { grid-template-columns: 1fr; }
  .card, .info-card, .review-card, .zone-body { padding: 21px; }
  .notice-box { padding: 22px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .main-btn { width: 100%; }
  .text-link { width: fit-content; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px 20px; padding-top: 42px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-grid > :last-child { grid-column: auto; }
}

@media (max-width: 420px) {
  .header-inner { min-height: 62px; }
  .menu-toggle { width: 39px; height: 39px; }
  .logo img { max-width: 108px; max-height: 40px; }
  .compact-btn { min-width: 68px; min-height: 38px; padding-inline: 14px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > :last-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}