* {
  box-sizing: border-box;
}

:root {
  --page-bg: #F3F7FC;
  --white: #FFFFFF;
  --soft-1: #EEF4FB;
  --soft-2: #E7F0FA;
  --deep-blue: #163B66;
  --nav-text: #32506E;
  --bright-blue: #169BFF;
  --orange: #FF9F1A;
  --body-text: #243447;
  --sub-text: #607388;
  --note-text: #8A9AAF;
  --card-border: rgba(22,59,102,0.10);
  --shadow: 0 14px 36px rgba(35,70,110,0.10);
  --btn: linear-gradient(180deg, #31C4FF 0%, #189DFF 100%);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  background: var(--page-bg);
  color: var(--body-text);
  line-height: 1.75;
}

body.drawer-open {
  overflow: hidden;
}

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #FFFFFF;
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 24px rgba(35,70,110,0.08);
}

.header-inner {
  width: min(1180px, calc(100% - 32px));
  min-height: 74px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 22px;
}

.text-logo,
.footer-logo {
  font-size: 28px;
  font-weight: 800;
  color: #163B66;
  letter-spacing: 1px;
  white-space: nowrap;
}

.text-logo span,
.footer-logo span {
  color: #169BFF;
}

.desktop-nav {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 0;
}

.nav a,
.drop-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 11px;
  border: 0;
  background: transparent;
  color: #32506E;
  font: inherit;
  font-size: 15px;
  font-weight: 650;
  cursor: pointer;
  white-space: nowrap;
}

.nav a::after,
.drop-btn::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 3px;
  border-radius: 999px;
  background: #169BFF;
  transform: scaleX(0);
  transition: transform .2s ease;
}

.nav a:hover,
.drop-btn:hover,
.nav a.active,
.drop-btn.active {
  color: #169BFF;
}

.nav a:hover::after,
.drop-btn:hover::after,
.nav a.active::after,
.drop-btn.active::after {
  transform: scaleX(1);
}

.nav-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 172px;
  padding: 10px;
  border: 1px solid rgba(22,59,102,0.08);
  border-radius: 16px;
  background: #FFFFFF;
  box-shadow: 0 18px 48px rgba(35,70,110,0.16);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
  z-index: 1200;
}

.dropdown-right {
  left: auto;
  right: 0;
}

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

.dropdown-menu a {
  display: flex;
  width: 100%;
  min-height: 38px;
  justify-content: flex-start;
  padding: 8px 10px;
  border-radius: 10px;
  color: #32506E;
}

.dropdown-menu a::after {
  display: none;
}

.dropdown-menu a:hover,
.dropdown-menu a.active {
  background: #EEF4FB;
  color: #169BFF;
}

.main-btn,
.outline-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  white-space: nowrap;
}

.main-btn {
  background: linear-gradient(180deg, #31C4FF 0%, #189DFF 100%);
  color: #FFFFFF;
  box-shadow: 0 12px 26px rgba(22,155,255,0.25);
}

.outline-btn {
  border: 1px solid rgba(22,155,255,0.28);
  color: #169BFF;
  background: #FFFFFF;
}

.header-register {
  flex: 0 0 auto;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(22,59,102,0.12);
  border-radius: 14px;
  background: #FFFFFF;
  cursor: pointer;
  padding: 10px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: #163B66;
  border-radius: 999px;
}

.site-main {
  padding-top: 74px;
}

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

.hero {
  padding: 70px 0 44px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
  gap: 36px;
  align-items: center;
}

.hero-copy,
.hero-card,
.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-box,
.panel,
.feature-band {
  background: rgba(255,255,255,0.96);
  border: 1px solid rgba(22,59,102,0.10);
  box-shadow: 0 14px 36px rgba(35,70,110,0.10);
}

.hero-copy {
  border-radius: 30px;
  padding: 44px;
}

.eyebrow,
.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #FF9F1A;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .5px;
}

h1,
h2,
h3,
.section-title {
  color: #163B66;
  line-height: 1.28;
  margin: 0;
}

h1 {
  font-size: clamp(34px, 5vw, 56px);
  margin-top: 12px;
}

h2,
.section-title {
  font-size: clamp(26px, 3vw, 38px);
}

h3 {
  font-size: 21px;
}

p {
  margin: 0;
  color: #243447;
}

.lead {
  margin-top: 18px;
  color: #607388;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 30px;
}

.hero-points span {
  display: block;
  padding: 12px;
  border-radius: 16px;
  background: #EEF4FB;
  color: #32506E;
  font-weight: 700;
  text-align: center;
}

.hero-card {
  border-radius: 30px;
  padding: 18px;
  background: linear-gradient(180deg, #FFFFFF 0%, #EEF4FB 100%);
}

.image-panel {
  overflow: hidden;
  border-radius: 24px;
  background: #E7F0FA;
}

.image-panel img {
  width: 100%;
  height: auto;
}

.hero-card .image-panel {
  margin-bottom: 16px;
}

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

.stat-item {
  padding: 14px;
  border-radius: 16px;
  background: #FFFFFF;
  text-align: center;
}

.stat-item strong {
  display: block;
  color: #169BFF;
  font-size: 22px;
}

.stat-item span {
  color: #607388;
  font-size: 13px;
}

.section {
  padding: 42px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  margin-bottom: 24px;
}

.section-head p {
  max-width: 680px;
  color: #607388;
}

.grid-4,
.grid-3,
.grid-2,
.grid-6 {
  display: grid;
  gap: 18px;
}

.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-6 { grid-template-columns: repeat(3, 1fr); }

.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-box,
.panel {
  border-radius: 24px;
  padding: 24px;
}

.card h3,
.zone-card h3,
.info-card h3,
.review-card h3,
.faq-item h3,
.panel h3 {
  margin-bottom: 10px;
}

.card p,
.zone-card p,
.info-card p,
.review-card p,
.faq-item p,
.panel p,
.service-list li,
.steps li {
  color: #607388;
}

.card .text-link,
.text-link {
  display: inline-flex;
  margin-top: 16px;
  color: #169BFF;
  font-weight: 800;
}

.media-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
}

.feature-band {
  border-radius: 30px;
  padding: 30px;
  background: linear-gradient(120deg, #FFFFFF 0%, #EEF4FB 100%);
}

.service-list,
.steps,
.clean-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.service-list li,
.steps li,
.clean-list li {
  position: relative;
  padding-left: 28px;
  margin: 12px 0;
}

.service-list li::before,
.steps li::before,
.clean-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #169BFF;
  box-shadow: 0 0 0 5px rgba(22,155,255,0.12);
}

.number-badge {
  display: inline-flex;
  width: 30px;
  height: 30px;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  border-radius: 50%;
  background: rgba(255,159,26,0.12);
  color: #FF9F1A;
  font-weight: 900;
}

.reviews {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.review-card strong {
  display: block;
  margin-top: 16px;
  color: #163B66;
}

.faq-list {
  display: grid;
  gap: 16px;
}

.notice-box {
  background: #E7F0FA;
}

.notice-box strong,
.highlight {
  color: #169BFF;
}

.page-hero {
  padding: 58px 0 28px;
}

.page-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr);
  gap: 30px;
  align-items: center;
}

.page-hero-copy {
  padding: 36px;
  border-radius: 30px;
  background: #FFFFFF;
  border: 1px solid rgba(22,59,102,0.10);
  box-shadow: 0 14px 36px rgba(35,70,110,0.10);
}

.page-hero-copy h1 {
  font-size: clamp(32px, 4vw, 48px);
}

.page-hero-copy .lead {
  font-size: 17px;
}

.breadcrumb {
  color: #8A9AAF;
  font-size: 14px;
  margin-bottom: 12px;
}

.breadcrumb a {
  color: #169BFF;
  font-weight: 800;
}

.cta-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 28px;
  border-radius: 26px;
  background: #163B66;
  color: #EAF4FF;
}

.cta-strip h2,
.cta-strip p {
  color: #EAF4FF;
}

.footer-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: .9fr 1.4fr;
  gap: 40px;
  padding: 52px 0 30px;
}

.site-footer {
  margin-top: 60px;
  background: #163B66;
  color: #EAF4FF;
}

.site-footer p,
.site-footer a {
  color: #EAF4FF;
  opacity: .9;
}

.footer-logo {
  color: #EAF4FF;
  margin-bottom: 16px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.footer-links h3 {
  color: #FFFFFF;
  font-size: 18px;
  margin-bottom: 12px;
}

.footer-links a {
  display: block;
  margin: 8px 0;
}

.footer-notice {
  border-top: 1px solid rgba(234,244,255,0.16);
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 24px;
}

.mobile-drawer,
.drawer-overlay {
  display: none;
}

@media (max-width: 1080px) {
  .desktop-nav {
    gap: 0;
  }
  .nav a,
  .drop-btn {
    padding: 0 8px;
    font-size: 14px;
  }
  .header-inner {
    gap: 14px;
  }
}

@media (max-width: 920px) {
  .header-inner {
    position: relative;
    min-height: 66px;
    justify-content: space-between;
  }
  .desktop-nav {
    display: none;
  }
  .menu-toggle {
    display: inline-block;
    flex: 0 0 auto;
  }
  .header-inner > .text-logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 24px;
  }
  .header-register {
    min-height: 40px;
    padding: 0 16px;
    font-size: 14px;
  }
  .site-main {
    padding-top: 66px;
  }
  .mobile-drawer {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 84vw;
    max-width: 320px;
    height: 100vh;
    background: #FFFFFF;
    box-shadow: 18px 0 50px rgba(18,39,68,0.18);
    z-index: 1500;
    transform: translateX(-105%);
    transition: transform .28s ease;
    overflow-y: auto;
  }
  .drawer-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.42);
    z-index: 1450;
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s ease, visibility .25s ease;
  }
  .drawer-open .mobile-drawer {
    transform: translateX(0);
  }
  .drawer-open .drawer-overlay {
    opacity: 1;
    visibility: visible;
  }
  .drawer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 18px 12px;
    border-bottom: 1px solid rgba(22,59,102,0.10);
  }
  .drawer-logo {
    font-size: 24px;
  }
  .drawer-close {
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 50%;
    background: #EEF4FB;
    color: #163B66;
    font-size: 26px;
    line-height: 1;
  }
  .drawer-nav {
    padding: 14px;
  }
  .drawer-nav a {
    display: block;
    padding: 12px 14px;
    margin: 4px 0;
    border-radius: 14px;
    color: #32506E;
    font-weight: 750;
  }
  .drawer-nav a.active,
  .drawer-nav a:hover {
    background: #EEF4FB;
    color: #169BFF;
  }
  .hero,
  .page-hero {
    padding-top: 36px;
  }
  .hero-grid,
  .page-hero-inner,
  .media-card,
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .grid-4,
  .grid-3,
  .grid-6,
  .reviews {
    grid-template-columns: repeat(2, 1fr);
  }
  .section-head {
    display: block;
  }
  .section-head p {
    margin-top: 10px;
  }
}

@media (max-width: 640px) {
  .container,
  .header-inner,
  .footer-inner,
  .footer-notice {
    width: min(100% - 24px, 1180px);
  }
  .hero-copy,
  .page-hero-copy,
  .feature-band,
  .cta-strip {
    padding: 24px;
    border-radius: 24px;
  }
  .hero-points,
  .stat-row,
  .grid-4,
  .grid-3,
  .grid-2,
  .grid-6,
  .reviews,
  .footer-links {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 30px 0;
  }
  .cta-strip {
    display: block;
  }
  .cta-strip .main-btn {
    margin-top: 18px;
  }
  h1 {
    font-size: 34px;
  }
  .lead {
    font-size: 16px;
  }
}