* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #E6EBF2;
  color: #243447;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}

a {
  color: #289CFF;
  text-decoration: none;
}

a:hover {
  color: #1E90F0;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 9999;
  background: #F5F7FB;
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 24px rgba(56,92,138,0.10);
}

.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  min-height: 76px;
  padding: 0 22px;
  display: flex;
  align-items: center;
  gap: 22px;
}

.brand-logo img {
  width: 148px;
  height: auto;
}

.nav {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.nav a {
  position: relative;
  color: #4E5F7A;
  font-size: 14px;
  font-weight: 700;
  padding: 24px 9px 20px;
  white-space: nowrap;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 14px;
  height: 3px;
  border-radius: 99px;
  background: transparent;
}

.nav a.active,
.nav a:hover {
  color: #289CFF;
}

.nav a.active::after {
  background: #289CFF;
  box-shadow: 0 4px 12px rgba(40,156,255,0.28);
}

.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 24px;
  border-radius: 999px;
  background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
  color: #FFFFFF !important;
  border: 0;
  box-shadow: 0 10px 24px rgba(36,155,255,0.25);
  font-weight: 800;
  line-height: 1;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  cursor: pointer;
  white-space: nowrap;
}

.main-btn:hover {
  background: linear-gradient(180deg, #48D9F7 0%, #1E90F0 100%);
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(36,155,255,0.30);
}

.small-btn {
  min-height: 36px;
  padding: 0 18px;
  font-size: 14px;
}

.mobile-topbar {
  display: none;
  min-height: 64px;
  padding: 0 14px;
  align-items: center;
  justify-content: space-between;
  background: #F5F7FB;
}

.menu-toggle {
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 12px;
  background: #FFFFFF;
  box-shadow: 0 8px 20px rgba(56,92,138,0.10);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}

.menu-toggle span {
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: #4E5F7A;
}

.mobile-logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.mobile-logo img {
  width: 132px;
  height: auto;
}

.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.42);
  opacity: 0;
  visibility: hidden;
  z-index: 10000;
  transition: opacity .25s ease, visibility .25s ease;
}

.drawer-mask.show {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 84vw;
  max-width: 320px;
  height: 100vh;
  background: #FFFFFF;
  z-index: 10001;
  transform: translateX(-105%);
  transition: transform .28s ease;
  box-shadow: 18px 0 40px rgba(36,52,71,0.18);
  overflow-y: auto;
}

.mobile-drawer.open {
  transform: translateX(0);
}

.drawer-open {
  overflow: hidden;
}

.drawer-head {
  min-height: 74px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #F5F7FB;
  border-bottom: 1px solid rgba(40,156,255,0.12);
}

.drawer-logo img {
  width: 142px;
}

.drawer-close {
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 12px;
  background: #EEF2F7;
  color: #4E5F7A;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

.drawer-nav {
  padding: 14px;
  display: grid;
  gap: 8px;
}

.drawer-nav a {
  padding: 12px 14px;
  color: #4E5F7A;
  font-weight: 800;
  border-radius: 12px;
  background: #F5F7FB;
}

.drawer-nav a.active,
.drawer-nav a:hover {
  color: #289CFF;
  background: #EEF2F7;
}

.page-shell,
.home-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 20px 58px;
}

.banner-slider {
  max-width: 1200px;
  margin: 28px auto 36px;
  border-radius: 20px;
  background: #FFFFFF;
  box-shadow: 0 18px 40px rgba(56,92,138,0.12);
  overflow: hidden;
  position: relative;
  aspect-ratio: 16 / 6.2;
}

.slides {
  width: 100%;
  height: 100%;
  position: relative;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .45s ease;
  background: #FFFFFF;
}

.slide.active {
  opacity: 1;
  z-index: 1;
}

.banner-slider img {
  width: 100%;
  height: 100%;
  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;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 0;
  background: rgba(245,247,251,0.86);
  color: #289CFF;
  font-size: 30px;
  line-height: 1;
  box-shadow: 0 10px 24px rgba(56,92,138,0.15);
  cursor: pointer;
}

.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }

.slider-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 14px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
}

.slider-dots button {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 0;
  background: rgba(78,95,122,0.36);
  cursor: pointer;
  padding: 0;
}

.slider-dots button.active {
  width: 26px;
  border-radius: 99px;
  background: #289CFF;
}

.hero-card,
.card,
.zone-card,
.info-card,
.review-card,
.faq-card,
.notice-card,
.step-card {
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(40,156,255,0.16);
  box-shadow: 0 14px 36px rgba(56,92,138,0.10);
  border-radius: 20px;
}

.hero-card {
  padding: 34px;
  display: grid;
  grid-template-columns: 1.16fr .84fr;
  gap: 28px;
  align-items: center;
}

.hero-card p,
.section-head p,
.card p,
.zone-card p,
.info-card p,
.review-card p,
.faq-card p,
.notice-card p,
.step-card p,
.feature-list li,
.timeline li,
.page-article p {
  color: #66788A;
}

.hero-card .lead,
.page-lead {
  color: #243447;
  font-size: 17px;
}

h1,
h2,
h3,
.section-title {
  color: #289CFF;
  line-height: 1.25;
  margin-top: 0;
}

h1 {
  font-size: clamp(30px, 4vw, 48px);
  margin-bottom: 18px;
}

h2,
.section-title {
  font-size: clamp(24px, 3vw, 34px);
  margin-bottom: 14px;
}

h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.section {
  margin-top: 34px;
}

.section-head {
  max-width: 840px;
  margin-bottom: 18px;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card,
.zone-card,
.info-card,
.review-card,
.faq-card,
.notice-card,
.step-card {
  padding: 24px;
}

.card .tag,
.zone-card .tag,
.info-card .tag,
.number-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: #EEF2F7;
  color: #289CFF;
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 12px;
}

.text-link {
  display: inline-flex;
  margin-top: 8px;
  color: #289CFF;
  font-weight: 800;
}

.media-card {
  border-radius: 20px;
  background: #FFFFFF;
  border: 1px solid rgba(40,156,255,0.16);
  box-shadow: 0 14px 36px rgba(56,92,138,0.10);
  overflow: hidden;
}

.content-img,
.zone-card img,
.app-section img,
.media-card img,
.banner-slider img {
  max-width: 100%;
  height: auto;
}

.media-card img,
.content-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: #FFFFFF;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
}

.panel {
  background: #F5F7FB;
  border: 1px solid rgba(40,156,255,0.14);
  border-radius: 20px;
  padding: 26px;
}

.feature-list,
.timeline {
  margin: 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.feature-list li,
.timeline li {
  padding-left: 22px;
  position: relative;
}

.feature-list li::before,
.timeline li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #289CFF;
  position: absolute;
  left: 0;
  top: 12px;
}

.page-hero {
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(40,156,255,0.16);
  box-shadow: 0 14px 36px rgba(56,92,138,0.10);
  border-radius: 22px;
  padding: 34px;
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  gap: 28px;
  align-items: center;
}

.page-hero.no-image {
  grid-template-columns: 1fr;
}

.page-hero .meta {
  color: #8A9AAF;
  font-weight: 700;
  letter-spacing: .08em;
}

.page-article {
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(40,156,255,0.16);
  box-shadow: 0 14px 36px rgba(56,92,138,0.10);
  border-radius: 20px;
  padding: 28px;
}

.faq-card details {
  border-bottom: 1px solid rgba(40,156,255,0.14);
  padding: 16px 0;
}

.faq-card details:last-child {
  border-bottom: 0;
}

.faq-card summary {
  cursor: pointer;
  color: #243447;
  font-weight: 800;
}

.faq-card summary::marker {
  color: #289CFF;
}

.reminder-strip {
  margin-top: 34px;
  padding: 24px;
  border-radius: 20px;
  background: #DDE4EE;
  color: #243447;
  border: 1px solid rgba(40,156,255,0.16);
}

.reminder-strip strong {
  color: #289CFF;
}

.site-footer {
  background: #243447;
  color: #EAF3FF;
  padding: 42px 20px 0;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1.2fr;
  gap: 26px;
}

.footer-brand img {
  width: 148px;
  margin-bottom: 16px;
}

.footer-brand p,
.footer-note p,
.footer-bottom {
  color: #EAF3FF;
  opacity: .9;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links h2,
.footer-note h2 {
  color: #EAF3FF;
  font-size: 18px;
}

.footer-links a {
  color: #EAF3FF;
  opacity: .92;
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  max-width: 1200px;
  margin: 28px auto 0;
  border-top: 1px solid rgba(234,243,255,0.14);
  padding: 16px 0;
  font-size: 14px;
}

@media (max-width: 1080px) {
  .header-inner {
    display: none;
  }
  .mobile-topbar {
    display: flex;
  }
  .page-shell,
  .home-shell {
    padding-top: 22px;
  }
  .banner-slider {
    margin: 20px 16px 28px;
    aspect-ratio: 16 / 8.4;
  }
  .hero-card,
  .page-hero,
  .split,
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .grid.cols-4,
  .grid.cols-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  body {
    line-height: 1.68;
  }
  .page-shell,
  .home-shell {
    padding: 16px 14px 44px;
  }
  .banner-slider {
    border-radius: 16px;
    aspect-ratio: 16 / 10;
    margin: 16px 14px 24px;
  }
  .slider-arrow {
    width: 36px;
    height: 36px;
    font-size: 26px;
  }
  .hero-card,
  .page-hero,
  .page-article,
  .card,
  .zone-card,
  .info-card,
  .review-card,
  .faq-card,
  .notice-card,
  .step-card,
  .panel {
    padding: 20px;
    border-radius: 18px;
  }
  .grid.cols-4,
  .grid.cols-3,
  .grid.cols-2 {
    grid-template-columns: 1fr;
  }
  .mobile-logo img {
    width: 116px;
  }
  .small-btn {
    padding: 0 14px;
  }
}