* {
  box-sizing: border-box;
}

:root {
  --page-bg: #0E1730;
  --bg-soft: #111D3D;
  --bg-panel: #162447;
  --card-bg: #1A2954;
  --blue-soft: #1F315F;
  --nav-bg: #121C3D;
  --active-blue: #6B8DFF;
  --text: #EAF0FF;
  --muted: #B7C3E0;
  --weak: #8FA1C7;
  --line: rgba(255,255,255,0.08);
  --border: rgba(107,141,255,0.18);
  --shadow: 0 14px 32px rgba(0,0,0,0.28);
  --btn: linear-gradient(135deg, #5C7CFA 0%, #6B8DFF 52%, #89A5FF 100%);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: radial-gradient(circle at top left, rgba(107,141,255,0.16), transparent 32%), var(--page-bg);
  color: var(--text);
  font-family: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}

body.drawer-open {
  overflow: hidden;
}

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

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

.container {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 12px 28px rgba(0,0,0,0.22);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.site-logo,
.mobile-logo,
.footer-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;
  min-width: 0;
}

.nav-core a {
  color: #FFFFFF;
  position: relative;
  font-size: 15px;
  padding: 4px 0;
  transition: color .2s ease;
}

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

.nav-core a:hover::after,
.nav-core a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -14px;
  width: 28px;
  height: 3px;
  border-radius: 999px;
  background: var(--active-blue);
  transform: translateX(-50%);
}

.register-btn,
.mobile-register,
.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 24px;
  border-radius: 999px;
  background: var(--btn);
  color: #FFFFFF;
  font-weight: 700;
  box-shadow: 0 10px 22px rgba(107,141,255,0.25);
  border: 0;
  white-space: nowrap;
}

.channel-bar {
  background: var(--bg-panel);
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.channel-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 0;
  scrollbar-width: thin;
}

.channel-bar a {
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  padding: 7px 14px;
  border-radius: 999px;
  white-space: nowrap;
  font-size: 14px;
  transition: background .2s ease, color .2s ease;
}

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

.mobile-header {
  display: none;
}

.site-main {
  padding-top: 132px;
  min-height: 70vh;
}

.page-hero,
.section,
.banner-slider,
.notice-band {
  width: min(1180px, calc(100% - 36px));
  margin-left: auto;
  margin-right: auto;
}

.page-hero {
  margin-top: 28px;
  margin-bottom: 26px;
  padding: 42px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(31,49,95,0.9), rgba(17,29,61,0.96));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.page-hero.has-image {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
  gap: 34px;
  align-items: center;
}

.eyebrow {
  color: #AFC0FF;
  font-size: 14px;
  letter-spacing: .12em;
  margin: 0 0 8px;
}

h1,
h2,
h3,
.section-title {
  color: #FFFFFF;
  line-height: 1.3;
  margin: 0;
}

h1 {
  font-size: clamp(30px, 4vw, 52px);
  margin-bottom: 18px;
}

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

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

p {
  margin: 0 0 14px;
  color: var(--muted);
}

.lead {
  font-size: 17px;
  color: var(--text);
  max-width: 760px;
}

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

.hero-img,
.content-img {
  width: 100%;
  border-radius: 20px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  object-fit: contain;
  box-shadow: var(--shadow);
}

.hero-img {
  max-height: 300px;
  padding: 10px;
}

.banner-slider {
  margin-top: 24px;
  margin-bottom: 34px;
  border-radius: 22px;
  background: var(--bg-panel);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
  height: clamp(260px, 28vw, 360px);
  border: 1px solid var(--border);
}

.banner-slider .slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity .45s ease;
}

.banner-slider .slide.active {
  opacity: 1;
  pointer-events: auto;
}

.banner-slider img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--bg-panel);
}

.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%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.22);
  background: rgba(10,16,36,0.48);
  cursor: pointer;
  z-index: 3;
}

.slider-arrow::before {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
  top: 15px;
}

.slider-prev {
  left: 16px;
}

.slider-prev::before {
  left: 17px;
  transform: rotate(-135deg);
}

.slider-next {
  right: 16px;
}

.slider-next::before {
  right: 17px;
  transform: rotate(45deg);
}

.slider-dots {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  display: flex;
  gap: 9px;
  z-index: 4;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 0;
  background: rgba(255,255,255,0.42);
  cursor: pointer;
  padding: 0;
}

.slider-dot.active {
  width: 26px;
  border-radius: 999px;
  background: #FFFFFF;
}

.section {
  margin-top: 28px;
  margin-bottom: 28px;
}

.section-head {
  margin-bottom: 22px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-end;
}

.section-head p {
  max-width: 700px;
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 20px;
}

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

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

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

.card,
.zone-card,
.info-card,
.review-card,
.faq-card,
.news-card,
.notice-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: 18px;
  padding: 22px;
}

.info-card,
.news-card {
  position: relative;
  overflow: hidden;
}

.info-card::after,
.news-card::after {
  content: "";
  position: absolute;
  right: -28px;
  top: -28px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(107,141,255,0.12);
}

.zone-card {
  padding: 16px;
}

.zone-card img,
.info-card img,
.content-img,
.product-card img {
  width: 100%;
  object-fit: contain;
  background: var(--bg-panel);
  border-radius: 15px;
  border: 1px solid rgba(255,255,255,0.06);
}

.zone-card img,
.product-card img {
  height: 160px;
  margin-bottom: 16px;
}

.content-img {
  max-height: 280px;
  padding: 10px;
}

.product-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 14px 14px 20px;
  box-shadow: var(--shadow);
}

.feature-split {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  gap: 28px;
  align-items: center;
  padding: 28px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(26,41,84,0.96), rgba(17,29,61,0.92));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px;
  border-radius: 16px;
  background: rgba(31,49,95,0.58);
  border: 1px solid rgba(255,255,255,0.06);
}

.timeline-item strong {
  color: #FFFFFF;
}

.badge-list,
.notice-list {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.badge-list span,
.notice-list span {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(107,141,255,0.14);
  color: #DCE5FF;
  border: 1px solid rgba(107,141,255,0.18);
  font-size: 13px;
}

.review-card p {
  color: #D8E2FF;
}

.review-card strong {
  color: #FFFFFF;
}

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

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

.notice-band {
  margin-top: 28px;
  margin-bottom: 28px;
  padding: 22px 26px;
  border-radius: 20px;
  background: rgba(10,16,36,0.75);
  border: 1px solid var(--line);
}

.notice-band p {
  margin-bottom: 0;
  color: #C8D4F3;
}

.table-like {
  display: grid;
  gap: 12px;
}

.table-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 16px;
  padding: 16px;
  border-radius: 14px;
  background: rgba(31,49,95,0.48);
  border: 1px solid rgba(255,255,255,0.06);
}

.table-row strong {
  color: #FFFFFF;
}

.site-footer {
  margin-top: 48px;
  background: #0A1024;
  color: #C8D4F3;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 30px;
  padding: 42px 0 28px;
}

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

.site-footer a:not(.footer-logo) {
  display: block;
  color: #C8D4F3;
  margin: 7px 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 18px 0 24px;
}

.footer-bottom p {
  margin: 0;
  color: #9FB0D8;
  font-size: 14px;
}

.drawer-mask,
.mobile-drawer,
.mobile-bottom-nav {
  display: none;
}

@media (max-width: 980px) {
  .desktop-header {
    display: none;
  }

  .mobile-header {
    display: grid;
    grid-template-columns: 64px 1fr auto;
    align-items: center;
    min-height: 64px;
    padding: 0 16px;
    background: var(--nav-bg);
  }

  .mobile-logo {
    text-align: center;
    font-size: 24px;
  }

  .menu-open {
    width: 44px;
    height: 44px;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: transparent;
    border: 0;
    padding: 0;
  }

  .menu-open span {
    width: 24px;
    height: 2px;
    background: #fff;
    border-radius: 4px;
    display: block;
  }

  .mobile-register {
    min-height: 36px;
    padding: 0 16px;
  }

  .site-main {
    padding-top: 116px;
    padding-bottom: 76px;
  }

  .page-hero,
  .page-hero.has-image,
  .feature-split {
    grid-template-columns: 1fr;
  }

  .page-hero {
    padding: 28px 22px;
  }

  .banner-slider {
    height: clamp(150px, 45vw, 210px);
    margin-top: 18px;
    border-radius: 16px;
  }

  .grid-4,
  .grid-3,
  .grid-2,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section-head {
    display: block;
  }

  .drawer-mask {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.52);
    z-index: 1200;
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s ease, visibility .2s ease;
  }

  .mobile-drawer {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: min(84vw, 320px);
    height: 100vh;
    background: #121C3D;
    z-index: 1300;
    transform: translateX(-102%);
    transition: transform .25s ease;
    box-shadow: 18px 0 34px rgba(0,0,0,0.34);
    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;
    padding: 20px 18px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }

  .drawer-head strong {
    color: #FFFFFF;
    font-size: 22px;
  }

  .menu-close {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.18);
    background: transparent;
    color: #fff;
    font-size: 24px;
    line-height: 1;
  }

  .drawer-nav {
    padding: 12px;
  }

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

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

  .mobile-bottom-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1100;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: rgba(18,28,61,0.96);
    border-top: 1px solid rgba(255,255,255,0.14);
    backdrop-filter: blur(10px);
  }

  .mobile-bottom-nav a {
    min-height: 58px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #B7C3E0;
    font-size: 12px;
  }

  .mobile-bottom-nav span {
    font-size: 17px;
    line-height: 1.2;
  }

  .mobile-bottom-nav a.active {
    color: #FFFFFF;
    background: rgba(107,141,255,0.16);
  }

  .timeline-item,
  .table-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .container,
  .page-hero,
  .section,
  .banner-slider,
  .notice-band {
    width: min(100% - 24px, 1180px);
  }

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

  .feature-split {
    padding: 18px;
  }

  .slider-arrow {
    width: 34px;
    height: 34px;
  }

  .slider-arrow::before {
    top: 12px;
  }

  .slider-prev::before {
    left: 14px;
  }

  .slider-next::before {
    right: 14px;
  }
}