* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #0E1730;
  color: #EAF0FF;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background: #121C3D;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 12px 28px rgba(0,0,0,0.28);
}

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 0 20px;
}

.site-logo {
  color: #FFFFFF;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 1px;
  white-space: nowrap;
}

.nav-core {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  white-space: nowrap;
  flex-wrap: nowrap;
  flex: 1;
}

.nav-core a {
  color: #FFFFFF;
  position: relative;
  font-size: 15px;
  padding: 8px 2px;
  transition: color .2s ease;
}

.nav-core a:hover,
.nav-core a.active {
  color: #FFFFFF;
}

.nav-core a:hover {
  color: #89A5FF;
}

.nav-core a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -12px;
  width: 28px;
  height: 3px;
  border-radius: 999px;
  background: #6B8DFF;
  transform: translateX(-50%);
}

.register-btn,
.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 24px;
  border-radius: 999px;
  background: linear-gradient(135deg, #5C7CFA 0%, #6B8DFF 52%, #89A5FF 100%);
  color: #FFFFFF;
  font-weight: 700;
  border: 0;
  box-shadow: 0 10px 24px rgba(92,124,250,0.24);
  white-space: nowrap;
}

.register-btn:hover,
.main-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(92,124,250,0.30);
}

.channel-bar {
  background: #162447;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.channel-scroll {
  max-width: 1180px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.channel-bar a {
  display: inline-flex;
  align-items: center;
  color: #B7C3E0;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  white-space: nowrap;
}

.channel-bar a:hover,
.channel-bar a.active {
  color: #FFFFFF;
  background: rgba(107,141,255,0.18);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(107,141,255,0.25);
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
  color: #FFFFFF;
  padding: 9px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: #FFFFFF;
  border-radius: 999px;
  margin: 5px 0;
}

.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.58);
  z-index: 1200;
  opacity: 0;
  pointer-events: none;
  transition: opacity .24s ease;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 84vw;
  max-width: 320px;
  height: 100vh;
  background: #121C3D;
  color: #FFFFFF;
  z-index: 1300;
  transform: translateX(-105%);
  transition: transform .24s ease;
  overflow-y: auto;
  box-shadow: 20px 0 42px rgba(0,0,0,0.35);
}

.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;
  min-height: 66px;
  padding: 0 18px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.drawer-head strong {
  font-size: 24px;
}

.drawer-close {
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 12px;
  background: rgba(255,255,255,0.08);
  color: #FFFFFF;
  font-size: 26px;
  line-height: 1;
}

.drawer-nav {
  padding: 14px;
}

.drawer-nav a {
  display: block;
  padding: 13px 14px;
  border-radius: 12px;
  color: #EAF0FF;
  margin-bottom: 4px;
}

.drawer-nav a.active,
.drawer-nav a:hover {
  background: rgba(107,141,255,0.18);
  color: #FFFFFF;
}

.site-main {
  padding-top: 126px;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.banner-slider {
  max-width: 1180px;
  margin: 24px auto 34px;
  border-radius: 22px;
  background: #162447;
  box-shadow: 0 14px 32px rgba(0,0,0,0.28);
  overflow: hidden;
  position: relative;
  height: clamp(260px, 30vw, 360px);
  border: 1px solid rgba(107,141,255,0.18);
}

.banner-slider .slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .45s ease;
  background: #162447;
}

.banner-slider .slide.active {
  opacity: 1;
  z-index: 2;
}

.banner-slider img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #162447;
}

.banner-caption,
.banner-text,
.slide-title,
.slide-desc,
.slide-content,
.slide-card,
.banner-card {
  display: none !important;
}

.slider-prev,
.slider-next {
  position: absolute;
  top: 50%;
  z-index: 5;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 999px;
  transform: translateY(-50%);
  background: rgba(18,28,61,0.72);
  color: #FFFFFF;
  font-size: 28px;
  cursor: pointer;
}

.slider-prev {
  left: 16px;
}

.slider-next {
  right: 16px;
}

.slider-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 14px;
  z-index: 5;
  display: flex;
  justify-content: center;
  gap: 8px;
}

.slider-dot {
  width: 9px;
  height: 9px;
  border: 0;
  border-radius: 999px;
  background: rgba(255,255,255,0.42);
  padding: 0;
  cursor: pointer;
}

.slider-dot.active {
  width: 24px;
  background: #6B8DFF;
}

.section {
  margin: 34px 0;
}

.hero-section,
.page-hero {
  background: radial-gradient(circle at 20% 20%, rgba(107,141,255,0.18), transparent 32%), #111D3D;
  border: 1px solid rgba(107,141,255,0.18);
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 14px 32px rgba(0,0,0,0.28);
}

.hero-grid,
.page-hero-grid,
.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 28px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  color: #89A5FF;
  background: rgba(107,141,255,0.14);
  border: 1px solid rgba(107,141,255,0.22);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 13px;
  margin-bottom: 14px;
}

h1,
h2,
h3,
.section-title {
  color: #FFFFFF;
  line-height: 1.28;
  margin-top: 0;
}

h1 {
  font-size: clamp(30px, 4vw, 50px);
  margin-bottom: 18px;
}

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

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

p {
  color: #B7C3E0;
  margin: 0 0 14px;
}

.lead {
  color: #EAF0FF;
  font-size: 17px;
}

.muted {
  color: #8FA1C7;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 22px;
}

.text-link {
  color: #89A5FF;
  font-weight: 700;
}

.visual-card {
  padding: 12px;
  border-radius: 22px;
  background: #162447;
  border: 1px solid rgba(107,141,255,0.18);
}

.visual-card img,
.content-img {
  width: 100%;
  max-height: 280px;
  object-fit: contain;
  background: #162447;
  border-radius: 16px;
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card,
.stat-card,
.product-card {
  background: #1A2954;
  border: 1px solid rgba(107,141,255,0.18);
  box-shadow: 0 14px 32px rgba(0,0,0,0.28);
  border-radius: 18px;
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card,
.stat-card {
  padding: 22px;
}

.product-card {
  overflow: hidden;
}

.product-card .card-body {
  padding: 18px;
}

.product-card img {
  width: 100%;
  height: 160px;
  object-fit: contain;
  background: #162447;
  padding: 8px;
}

.zone-card img,
.info-card img {
  width: 100%;
  height: 170px;
  object-fit: contain;
  background: #162447;
  border-radius: 14px;
  margin-bottom: 16px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 20px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 18px;
}

.news-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 16px;
}

.news-item {
  padding: 18px;
  background: #1A2954;
  border: 1px solid rgba(107,141,255,0.18);
  border-radius: 16px;
}

.news-item span,
.card-kicker {
  display: inline-flex;
  margin-bottom: 8px;
  color: #89A5FF;
  font-size: 13px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  margin-bottom: 20px;
}

.section-head p {
  max-width: 680px;
}

.list-check {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
}

.list-check li {
  position: relative;
  padding-left: 22px;
  margin: 8px 0;
  color: #B7C3E0;
}

.list-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #6B8DFF;
}

.review-card p {
  color: #EAF0FF;
}

.review-card strong {
  color: #89A5FF;
  display: block;
  margin-top: 12px;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item h3 {
  font-size: 18px;
}

.notice-card {
  background: linear-gradient(135deg, rgba(107,141,255,0.12), rgba(26,41,84,0.94));
}

.page-hero {
  margin-top: 24px;
}

.page-hero .visual-card img {
  max-height: 300px;
}

.table-card {
  width: 100%;
  overflow-x: auto;
}

.service-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

.service-table th,
.service-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: #B7C3E0;
}

.service-table th {
  color: #FFFFFF;
  background: rgba(107,141,255,0.08);
}

.site-footer {
  margin-top: 56px;
  background: #0A1024;
  color: #C8D4F3;
  padding: 46px 20px 28px;
}

.footer-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr .8fr .8fr 1fr;
  gap: 28px;
}

.footer-logo {
  color: #FFFFFF;
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
}

.site-footer h3 {
  font-size: 17px;
  margin-bottom: 12px;
}

.site-footer a {
  display: block;
  color: #C8D4F3;
  margin: 7px 0;
}

.site-footer a:hover {
  color: #89A5FF;
}

.footer-bottom {
  max-width: 1180px;
  margin: 30px auto 0;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: #8FA1C7;
  font-size: 14px;
}

.mobile-bottom-nav {
  display: none;
}

@media (max-width: 980px) {
  .site-main {
    padding-top: 72px;
    padding-bottom: 74px;
  }

  .header-inner {
    min-height: 72px;
    gap: 12px;
    padding: 0 14px;
  }

  .menu-toggle {
    display: block;
  }

  .site-logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 24px;
  }

  .nav-core,
  .channel-bar {
    display: none;
  }

  .register-btn {
    padding: 0 18px;
    min-height: 38px;
    margin-left: auto;
  }

  .container {
    width: min(100% - 26px, 1180px);
  }

  .banner-slider {
    margin: 16px auto 26px;
    border-radius: 16px;
    height: clamp(150px, 43vw, 210px);
  }

  .slider-prev,
  .slider-next {
    width: 34px;
    height: 34px;
    font-size: 22px;
  }

  .hero-section,
  .page-hero {
    padding: 22px;
    border-radius: 18px;
  }

  .hero-grid,
  .page-hero-grid,
  .split-grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .news-strip,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section-head {
    display: block;
  }

  .product-card img,
  .zone-card img,
  .info-card img {
    height: 150px;
  }

  .mobile-bottom-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: rgba(10,16,36,0.96);
    border-top: 1px solid rgba(255,255,255,0.10);
    backdrop-filter: blur(10px);
  }

  .mobile-bottom-nav a {
    color: #B7C3E0;
    text-align: center;
    padding: 8px 0 7px;
    font-size: 12px;
  }

  .mobile-bottom-nav a span {
    display: block;
    font-size: 15px;
    line-height: 1.1;
  }

  .mobile-bottom-nav a.active {
    color: #89A5FF;
  }

  .footer-bottom {
    display: block;
  }

  .footer-bottom span {
    display: block;
    margin-top: 6px;
  }
}

@media (max-width: 560px) {
  h1 {
    font-size: 28px;
  }

  .card,
  .zone-card,
  .info-card,
  .review-card,
  .faq-item,
  .notice-card,
  .stat-card {
    padding: 18px;
  }

  .hero-actions {
    align-items: stretch;
  }

  .main-btn {
    width: 100%;
  }
}