* {
  box-sizing: border-box;
}

:root {
  --brand: rgb(89, 126, 247);
  --brand-hex: #597EF7;
  --brand-deep: #1D2B5F;
  --text: #222222;
  --muted: #5B647A;
  --soft: #ECF0FF;
  --soft-2: #F6F8FF;
  --soft-3: #EAF7FF;
  --line: rgba(89, 126, 247, 0.16);
  --shadow: 0 16px 40px rgba(89, 126, 247, 0.10);
  --radius: 26px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background: #F6F8FF;
  line-height: 1.75;
  overflow-x: hidden;
}

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

img {
  display: block;
}

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  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);
}

.desktop-header {
  min-height: 76px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
}

.brand img,
.mobile-brand img,
.drawer-head img,
.footer-brand img {
  width: auto;
  height: 42px;
  object-fit: contain;
}

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

.main-nav a {
  color: #1D2B5F;
  font-weight: 700;
  font-size: 14px;
  padding: 9px 12px;
  border-radius: 999px;
  transition: 0.2s ease;
}

.main-nav a:hover,
.main-nav a.is-active,
.drawer-nav a.is-active {
  color: var(--brand-hex);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: inset 0 0 0 1px rgba(89, 126, 247, 0.16);
}

.main-btn {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #7580EE 0%, #597EF7 48%, #7AC4F5 100%);
  color: #fff;
  border-radius: 999px;
  padding: 11px 22px;
  font-weight: 800;
  border: 0;
  box-shadow: 0 10px 24px rgba(89, 126, 247, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
}

.main-btn::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,.85) 35%, transparent 70%);
  transform: translateX(-120%);
  animation: btnShine 2.4s infinite;
  z-index: -1;
}

.main-btn::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  border: 1px solid rgba(255,255,255,.65);
  box-shadow:
    0 0 8px rgba(122,196,245,.55),
    0 0 18px rgba(89,126,247,.35);
  pointer-events: none;
}

.main-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(89, 126, 247, 0.35);
}

@keyframes btnShine {
  0% { transform: translateX(-120%); }
  55% { transform: translateX(120%); }
  100% { transform: translateX(120%); }
}

.mobile-header {
  display: none;
  min-height: 66px;
  align-items: center;
  grid-template-columns: 48px 1fr auto;
  gap: 8px;
  padding: 0 14px;
  background: linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 52%, #EAF7FF 100%);
}

.menu-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(89, 126, 247, 0.18);
  background: rgba(255, 255, 255, 0.72);
  border-radius: 14px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: 0;
}

.menu-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: #1D2B5F;
}

.mobile-brand {
  justify-self: center;
}

.mobile-brand img {
  height: 38px;
  max-width: 142px;
}

.mobile-reg {
  padding: 9px 13px;
  font-size: 13px;
}

.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.42);
  opacity: 0;
  pointer-events: none;
  transition: 0.25s ease;
}

.mobile-drawer {
  position: fixed;
  left: 0;
  top: 0;
  width: min(84vw, 320px);
  height: 100vh;
  transform: translateX(-105%);
  transition: transform 0.28s ease;
  background: linear-gradient(135deg, #FFFFFF 0%, #F7F9FF 52%, #ECF0FF 100%);
  box-shadow: 18px 0 42px rgba(29, 43, 95, 0.18);
  padding: 18px;
  z-index: 10000;
}

.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;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(89, 126, 247, 0.14);
}

.drawer-close {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  color: #1D2B5F;
  background: rgba(89, 126, 247, 0.10);
  font-size: 22px;
  line-height: 1;
}

.drawer-nav {
  display: grid;
  gap: 8px;
  padding-top: 18px;
}

.drawer-nav a {
  color: #1D2B5F;
  font-weight: 800;
  padding: 13px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(89, 126, 247, 0.12);
}

.hero-section {
  background:
    radial-gradient(circle at 18% 20%, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0) 32%),
    linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 52%, #EAF7FF 100%);
  padding: 76px 0 58px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, 0.95fr);
  align-items: center;
  gap: 42px;
}

.eyebrow,
.badge,
.card-label {
  display: inline-flex;
  align-items: center;
  color: var(--brand-hex);
  background: rgba(89, 126, 247, 0.10);
  border: 1px solid rgba(89, 126, 247, 0.18);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 800;
}

.hero-title,
.section-title,
.inner-title,
.content-panel h2,
.faq-item h3 {
  color: #1D2B5F;
  line-height: 1.16;
  margin: 0;
}

.hero-title {
  margin-top: 18px;
  font-size: clamp(34px, 5vw, 60px);
  letter-spacing: -1.6px;
}

.hero-copy {
  color: #3F4A66;
  font-size: 17px;
  margin: 22px 0 26px;
  max-width: 680px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-tags,
.mini-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.hero-tags span,
.mini-tags span {
  color: #1D2B5F;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(89, 126, 247, 0.18);
  border-radius: 999px;
  padding: 7px 13px;
  font-weight: 800;
  font-size: 13px;
}

.hero-visual {
  border-radius: 34px;
  padding: 18px;
  background: rgba(255,255,255,0.54);
  border: 1px solid rgba(89,126,247,0.16);
  box-shadow: 0 24px 60px rgba(89,126,247,0.16);
  backdrop-filter: blur(14px);
}

.hero-visual img {
  width: 100%;
  max-height: 390px;
  object-fit: contain;
  border-radius: 24px;
}

.hero-stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 14px;
}

.hero-stat-row div {
  padding: 13px;
  border-radius: 18px;
  background: rgba(255,255,255,0.82);
  border: 1px solid rgba(89,126,247,0.14);
}

.hero-stat-row strong {
  display: block;
  color: var(--brand-hex);
  font-size: 18px;
}

.hero-stat-row span {
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 74px 0;
}

.section.alt {
  background: #ECF0FF;
}

.section.light {
  background: #FFFFFF;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  align-items: end;
  margin-bottom: 28px;
}

.section-title {
  font-size: clamp(26px, 4vw, 42px);
}

.section-desc {
  color: var(--muted);
  max-width: 650px;
  margin: 12px 0 0;
}

.text-link {
  color: var(--brand-hex);
  font-weight: 900;
}

.text-link::after {
  content: " 〉";
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.quick-card,
.info-card,
.card,
.zone-card,
.faq-item,
.security-card,
.content-panel,
.inner-card {
  background: rgba(255,255,255,0.86);
  border: 1px solid rgba(89,126,247,0.16);
  box-shadow: 0 16px 40px rgba(89,126,247,0.10);
  border-radius: var(--radius);
}

.quick-card {
  padding: 18px;
  min-height: 132px;
}

.quick-card .num,
.info-card .num,
.security-card .num {
  color: var(--brand-hex);
  font-weight: 950;
  letter-spacing: 0.04em;
}

.quick-card h3,
.info-card h3,
.zone-card h3,
.security-card h3,
.inner-card h3 {
  margin: 7px 0 6px;
  color: #1D2B5F;
  line-height: 1.3;
}

.quick-card p,
.info-card p,
.zone-card p,
.security-card p,
.inner-card p {
  color: var(--muted);
  margin: 0;
  font-size: 14px;
}

.overview-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.info-card {
  padding: 22px;
}

.feature-stack {
  display: grid;
  gap: 30px;
}

.feature-row {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 30px;
  align-items: center;
}

.feature-row.reverse {
  grid-template-columns: 1.05fr 0.95fr;
}

.image-panel {
  border-radius: 30px;
  padding: 16px;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(255,255,255,0.92), rgba(236,240,255,0.74));
  border: 1px solid rgba(89,126,247,0.16);
  box-shadow: var(--shadow);
}

.content-img,
.zone-card img,
.app-section img,
.hero-visual img,
.inner-hero img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.content-img {
  max-height: 330px;
}

.content-panel {
  padding: clamp(24px, 4vw, 42px);
}

.content-panel h2 {
  font-size: clamp(24px, 3vw, 36px);
}

.content-panel p {
  color: #3F4A66;
  margin: 16px 0;
}

.point-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 18px 0 16px;
  list-style: none;
}

.point-list li {
  position: relative;
  padding-left: 20px;
  color: #3F4A66;
}

.point-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand-hex);
  box-shadow: 0 0 0 5px rgba(89,126,247,0.10);
}

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

.zone-card {
  overflow: hidden;
  min-height: 100%;
}

.zone-card.wide {
  grid-column: span 2;
}

.zone-card .zone-body {
  padding: 20px;
}

.zone-card img {
  width: 100%;
  max-height: 185px;
  margin: 12px auto 0;
  padding: 0 14px;
}

.zone-card.text-only {
  background: linear-gradient(135deg, rgba(255,255,255,0.92), rgba(234,247,255,0.76));
}

.app-section {
  background: linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 55%, #EAF7FF 100%);
  border-top: 1px solid rgba(89,126,247,0.12);
  border-bottom: 1px solid rgba(89,126,247,0.12);
}

.app-banner {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 34px;
  align-items: center;
}

.app-visual {
  border-radius: 32px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(89,126,247,0.16);
  box-shadow: var(--shadow);
  padding: 20px;
  display: flex;
  justify-content: center;
}

.app-visual img {
  max-height: 390px;
}

.feature-list-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 20px 0;
}

.feature-list-grid span {
  color: #1D2B5F;
  font-weight: 850;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255,255,255,0.78);
  border: 1px solid rgba(89,126,247,0.14);
}

.support-grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 28px;
  align-items: start;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.security-card {
  padding: 18px;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.faq-item {
  padding: 22px;
}

.faq-item p {
  color: var(--muted);
  margin: 10px 0 0;
}

.notice-box {
  border-radius: 30px;
  padding: 30px;
  background: linear-gradient(135deg, rgba(29,43,95,0.94), rgba(43,43,43,0.96));
  color: #fff;
}

.notice-box h2,
.notice-box h3 {
  margin: 0 0 10px;
  color: #FFFFFF;
}

.notice-box p {
  color: rgba(255,255,255,0.78);
  margin: 0;
}

.inner-hero {
  padding: 62px 0 44px;
  background:
    radial-gradient(circle at 18% 20%, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0) 32%),
    linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 52%, #EAF7FF 100%);
}

.inner-hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 34px;
  align-items: center;
}

.inner-title {
  font-size: clamp(32px, 4.8vw, 54px);
  margin-top: 16px;
}

.inner-copy {
  color: #3F4A66;
  font-size: 17px;
  margin: 18px 0 0;
}

.inner-visual {
  border-radius: 30px;
  padding: 18px;
  background: rgba(255,255,255,0.66);
  border: 1px solid rgba(89,126,247,0.16);
  box-shadow: var(--shadow);
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.inner-visual img {
  max-height: 330px;
}

.prose-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: start;
}

.article-body p {
  color: #3F4A66;
  margin: 0 0 16px;
}

.inner-card-grid {
  display: grid;
  gap: 14px;
}

.inner-card {
  padding: 20px;
}

.inner-wide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.check-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.check-list li {
  color: #3F4A66;
  background: rgba(236,240,255,0.62);
  border-radius: 16px;
  padding: 12px 14px;
  border: 1px solid rgba(89,126,247,0.12);
}

.site-footer {
  background: #1F1F1F;
  color: #FFFFFF;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 30px;
  padding: 54px 0;
}

.footer-brand p,
.footer-col a,
.footer-bottom {
  color: rgba(255,255,255,0.72);
}

.footer-brand img {
  height: 44px;
  margin-bottom: 16px;
}

.footer-note {
  color: rgba(255,255,255,0.9) !important;
}

.footer-col {
  display: grid;
  align-content: start;
  gap: 8px;
}

.footer-col h3 {
  margin: 0 0 6px;
  color: #FFFFFF;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.10);
  background: #2B2B2B;
  padding: 16px 0;
  font-size: 14px;
}

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

  .mobile-header {
    display: grid;
  }

  .hero-section {
    padding: 46px 0 38px;
  }

  .hero-grid,
  .inner-hero-grid,
  .app-banner,
  .support-grid,
  .prose-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 26px;
  }

  .quick-grid,
  .overview-row,
  .zone-grid,
  .inner-wide-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-row,
  .feature-row.reverse {
    grid-template-columns: 1fr;
  }

  .feature-row.reverse .content-panel {
    order: 2;
  }

  .feature-row.reverse .image-panel {
    order: 1;
  }

  .zone-card.wide {
    grid-column: span 1;
  }

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

@media (max-width: 640px) {
  .container {
    width: min(100% - 24px, 1180px);
  }

  .mobile-reg {
    padding: 8px 10px;
    font-size: 12px;
  }

  .hero-title,
  .inner-title {
    letter-spacing: -0.8px;
  }

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

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

  .quick-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 6px;
  }

  .quick-card {
    min-width: 78%;
    scroll-snap-align: start;
  }

  .overview-row,
  .zone-grid,
  .feature-list-grid,
  .security-grid,
  .faq-grid,
  .inner-wide-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 52px 0;
  }

  .section-head {
    display: block;
  }

  .hero-stat-row {
    grid-template-columns: 1fr;
  }

  .content-panel,
  .notice-box {
    padding: 22px;
  }

  .image-panel,
  .inner-visual {
    min-height: 180px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    padding: 42px 0;
  }
}