* {
  box-sizing: border-box;
}

:root {
  --bg: #E6EBF2;
  --nav-bg: #F5F7FB;
  --panel: #FFFFFF;
  --soft: #EEF2F7;
  --soft-deep: #DDE4EE;
  --title: #289CFF;
  --nav-text: #4E5F7A;
  --text: #243447;
  --muted: #66788A;
  --light: #8A9AAF;
  --footer: #243447;
  --footer-text: #EAF3FF;
  --border: rgba(40,156,255,0.16);
  --shadow: 0 14px 36px rgba(56,92,138,0.12);
  --btn: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.75;
  padding-top: 86px;
  overflow-x: hidden;
}

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--nav-bg);
  border-bottom: 1px solid rgba(40,156,255,0.12);
  box-shadow: 0 10px 28px rgba(56,92,138,0.08);
  z-index: 9999;
}

.header-inner {
  width: min(1200px, calc(100% - 36px));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  flex: 0 0 auto;
}

.logo img {
  max-height: 52px;
  width: auto;
}

.nav-wrap {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  justify-content: center;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.45vw, 22px);
  white-space: nowrap;
  flex-wrap: nowrap;
}

.nav > a,
.dropdown-toggle {
  color: var(--nav-text);
  font-size: 15px;
  font-weight: 650;
  padding: 24px 0 22px;
  line-height: 1;
  position: relative;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
}

.nav > a::after,
.dropdown-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 13px;
  width: 0;
  height: 3px;
  border-radius: 20px;
  background: var(--title);
  transform: translateX(-50%);
  transition: width .22s ease;
}

.nav > a:hover,
.nav > a.active,
.dropdown:hover .dropdown-toggle,
.dropdown.open .dropdown-toggle,
.dropdown.active .dropdown-toggle {
  color: var(--title);
}

.nav > a:hover::after,
.nav > a.active::after,
.dropdown:hover .dropdown-toggle::after,
.dropdown.open .dropdown-toggle::after,
.dropdown.active .dropdown-toggle::after {
  width: 22px;
}

.header-action {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
}

.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 11px 24px;
  border-radius: 999px;
  background: var(--btn);
  color: #FFFFFF;
  font-weight: 750;
  letter-spacing: .02em;
  border: none;
  box-shadow: 0 12px 24px rgba(36,155,255,0.22);
  transition: transform .2s ease, box-shadow .2s ease;
}

.main-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(36,155,255,0.28);
}

.text-link {
  color: var(--title);
  font-weight: 750;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.text-link::after {
  content: "›";
  font-size: 18px;
  line-height: 1;
}

.dropdown,
.more-dropdown {
  position: relative;
}

.dropdown-menu,
.more-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  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;
  transform: translateY(10px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
  padding: 8px;
}

.more-menu {
  right: 0;
  left: auto;
}

.dropdown:hover .dropdown-menu,
.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a,
.more-menu a {
  display: block;
  padding: 10px 13px;
  color: var(--nav-text);
  white-space: nowrap;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 650;
}

.dropdown-menu a:hover,
.more-menu a:hover {
  color: var(--title);
  background: rgba(40,156,255,0.08);
}

.mobile-menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  background: #FFFFFF;
  border-radius: 13px;
  box-shadow: 0 10px 24px rgba(56,92,138,0.10);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.mobile-menu-btn span {
  width: 20px;
  height: 2px;
  border-radius: 4px;
  background: var(--nav-text);
}

.site-main {
  min-height: 60vh;
}

.section,
.page-section {
  width: min(1200px, calc(100% - 36px));
  margin: 0 auto 36px;
}

.section-head {
  max-width: 820px;
  margin-bottom: 22px;
}

.eyebrow,
.tag,
.number {
  color: var(--title);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
}

h1,
h2,
h3,
.section-title {
  color: var(--title);
  line-height: 1.25;
  margin: 0 0 14px;
}

h1 {
  font-size: clamp(32px, 5vw, 58px);
}

h2,
.section-title {
  font-size: clamp(24px, 3.2vw, 36px);
}

h3 {
  font-size: 20px;
}

p {
  margin: 0 0 14px;
}

.lead {
  font-size: 18px;
  color: var(--muted);
}

.muted {
  color: var(--muted);
}

.note {
  color: var(--light);
  font-size: 14px;
}

.hero-section {
  width: min(1200px, calc(100% - 36px));
  margin: 28px auto 36px;
  border-radius: 22px;
  background: #FFFFFF;
  box-shadow: 0 18px 40px rgba(56,92,138,0.12);
  overflow: hidden;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, .9fr);
  gap: 32px;
  align-items: center;
  padding: clamp(28px, 5vw, 58px);
}

.hero-copy p {
  max-width: 680px;
}

.hero-tags,
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0;
}

.hero-tags span,
.tag-row span {
  padding: 8px 13px;
  border-radius: 999px;
  background: #EEF2F7;
  color: var(--title);
  font-weight: 750;
  font-size: 14px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-top: 24px;
}

.hero-image,
.image-frame {
  border-radius: 20px;
  background: #EEF2F7;
  border: 1px solid var(--border);
  padding: 12px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.65);
}

.hero-section img,
.content-img,
.zone-card img,
.app-section img,
.image-frame img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 15px;
}

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

.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,
.step-card,
.notice-card,
.profile-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: 18px;
  padding: 22px;
}

.card:hover,
.zone-card:hover,
.review-card:hover,
.step-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(56,92,138,0.14);
}

.card,
.zone-card,
.review-card,
.step-card {
  transition: transform .2s ease, box-shadow .2s ease;
}

.card h3,
.zone-card h3,
.info-card h3,
.review-card h3,
.faq-card h3,
.step-card h3 {
  margin-bottom: 9px;
}

.card p,
.zone-card p,
.info-card p,
.review-card p,
.faq-card p,
.step-card p,
.notice-card p,
.profile-card p {
  color: var(--muted);
}

.icon-number {
  width: 38px;
  height: 38px;
  border-radius: 13px;
  background: rgba(40,156,255,0.10);
  color: var(--title);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 850;
  margin-bottom: 12px;
}

.split-panel {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  gap: 24px;
  align-items: center;
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: clamp(22px, 4vw, 38px);
  box-shadow: var(--shadow);
}

.feature-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.feature-list li,
.check-list li {
  list-style: none;
  position: relative;
  padding-left: 28px;
  color: var(--muted);
}

.feature-list li::before,
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--title);
  font-weight: 900;
}

.check-list {
  padding: 0;
  margin: 16px 0 0;
}

.steps {
  counter-reset: step;
}

.step-card {
  position: relative;
}

.step-card .number {
  font-size: 14px;
  display: inline-block;
  margin-bottom: 8px;
}

.review-card strong {
  display: block;
  color: var(--text);
  margin-top: 14px;
}

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

.faq-card {
  padding: 20px 22px;
}

.page-hero {
  width: min(1200px, calc(100% - 36px));
  margin: 28px auto 28px;
  border-radius: 22px;
  background: #FFFFFF;
  box-shadow: var(--shadow);
  padding: clamp(28px, 4vw, 52px);
  overflow: hidden;
}

.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, .95fr);
  gap: 30px;
  align-items: center;
}

.page-hero p {
  max-width: 760px;
}

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

.pill-list span {
  background: #EEF2F7;
  color: var(--title);
  border: 1px solid rgba(40,156,255,0.14);
  padding: 8px 13px;
  border-radius: 999px;
  font-weight: 750;
  font-size: 14px;
}

.notice-card {
  background: #DDE4EE;
  border-color: rgba(40,156,255,0.18);
}

.legal-reminder {
  width: min(1200px, calc(100% - 36px));
  margin: 0 auto 42px;
  background: #243447;
  color: #EAF3FF;
  border-radius: 22px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.legal-reminder h2 {
  color: #EAF3FF;
}

.legal-reminder p {
  color: #D9E9FF;
}

.site-footer {
  background: var(--footer);
  color: var(--footer-text);
  margin-top: 50px;
}

.footer-inner {
  width: min(1200px, calc(100% - 36px));
  margin: 0 auto;
  padding: 42px 0 28px;
  display: grid;
  grid-template-columns: minmax(260px, .9fr) minmax(0, 1.4fr);
  gap: 40px;
}

.footer-logo img {
  max-height: 52px;
  width: auto;
  margin-bottom: 18px;
}

.footer-brand p,
.footer-alert,
.footer-bottom {
  color: #D7E7FA;
}

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

.footer-links h3 {
  color: #EAF3FF;
  font-size: 16px;
}

.footer-links a {
  display: block;
  color: #D7E7FA;
  margin: 8px 0;
  font-size: 14px;
}

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

.footer-alert,
.footer-bottom {
  width: min(1200px, calc(100% - 36px));
  margin: 0 auto;
  border-top: 1px solid rgba(234,243,255,0.14);
}

.footer-alert {
  padding: 18px 0;
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0 24px;
  font-size: 14px;
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(36,52,71,0.42);
  z-index: 10000;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: min(84vw, 320px);
  height: 100vh;
  background: #FFFFFF;
  z-index: 10001;
  transform: translateX(-105%);
  transition: transform .26s ease;
  box-shadow: 20px 0 38px rgba(36,52,71,0.18);
  display: flex;
  flex-direction: column;
}

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

.drawer-open {
  overflow: hidden;
}

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

.drawer-logo img {
  max-height: 46px;
  width: auto;
}

.drawer-close {
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 12px;
  background: #FFFFFF;
  color: var(--nav-text);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

.drawer-nav {
  display: grid;
  gap: 4px;
  padding: 14px;
  overflow-y: auto;
}

.drawer-nav a {
  padding: 12px 14px;
  border-radius: 12px;
  color: var(--nav-text);
  font-weight: 700;
}

.drawer-nav a:hover,
.drawer-nav a.active {
  color: var(--title);
  background: rgba(40,156,255,0.08);
}

.drawer-note {
  margin: auto 14px 16px;
  padding: 14px;
  border-radius: 14px;
  background: #EEF2F7;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 1100px) {
  .header-inner {
    gap: 18px;
  }
  .nav {
    gap: 14px;
  }
  .nav > a,
  .dropdown-toggle {
    font-size: 14px;
  }
  .header-btn {
    padding-inline: 18px;
  }
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  body {
    padding-top: 76px;
  }
  .header-inner {
    width: min(100% - 24px, 1200px);
    min-height: 66px;
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr) auto;
    gap: 10px;
  }
  .mobile-menu-btn {
    display: inline-flex;
  }
  .nav-wrap {
    display: none;
  }
  .logo {
    justify-self: center;
  }
  .logo img {
    max-height: 46px;
  }
  .main-btn {
    min-height: 38px;
    padding: 9px 16px;
  }
  .hero-grid,
  .page-hero-grid,
  .split-panel,
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .footer-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .section,
  .page-section,
  .hero-section,
  .page-hero,
  .legal-reminder {
    width: min(100% - 24px, 1200px);
  }
  .hero-grid,
  .page-hero,
  .page-hero-grid,
  .split-panel {
    padding: 22px;
  }
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .footer-links {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
  }
  h1 {
    font-size: 31px;
  }
  h2,
  .section-title {
    font-size: 24px;
  }
  .hero-actions {
    align-items: stretch;
  }
  .hero-actions .main-btn,
  .hero-actions .text-link {
    width: 100%;
    justify-content: center;
  }
}