* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: #222222;
  background: radial-gradient(circle at 12% 0%, #EAF7FF 0, rgba(234, 247, 255, 0) 28%), linear-gradient(180deg, #F6F8FF 0%, #ECF0FF 42%, #F6F8FF 100%);
  line-height: 1.72;
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  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);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  min-height: 72px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand,
.drawer-logo,
.footer-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand img {
  width: 154px;
  max-height: 50px;
  object-fit: contain;
}

.desktop-nav {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  overflow: hidden;
}

.desktop-nav a,
.drawer-nav a {
  text-decoration: none;
  color: #3F4A66;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: all 0.22s ease;
}

.desktop-nav a {
  padding: 10px 11px;
  border-radius: 999px;
  font-size: 14px;
  white-space: nowrap;
}

.desktop-nav a:hover,
.desktop-nav a.active,
.drawer-nav a:hover,
.drawer-nav a.active {
  color: #597EF7;
  background: rgba(89, 126, 247, 0.10);
}

.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, #7580EE 0%, #597EF7 48%, #7AC4F5 100%);
  color: #FFFFFF;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 0 10px rgba(89, 126, 247, 0.28), 0 0 22px rgba(122, 196, 245, 0.20), 0 10px 24px rgba(89, 126, 247, 0.20);
  transition: all 0.25s ease;
  border: 0;
  white-space: nowrap;
}

.main-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 14px rgba(89, 126, 247, 0.36), 0 0 28px rgba(122, 196, 245, 0.26), 0 14px 28px rgba(89, 126, 247, 0.24);
}

.header-btn {
  padding: 10px 22px;
  font-size: 14px;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 14px;
  background: rgba(89, 126, 247, 0.11);
  cursor: pointer;
  padding: 10px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: #1D2B5F;
  border-radius: 99px;
  margin: 5px 0;
}

.drawer-mask {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(20, 30, 60, 0.42);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10001;
  width: min(82vw, 330px);
  height: 100vh;
  background: linear-gradient(180deg, rgba(255,255,255,0.97), rgba(236,240,255,0.96));
  box-shadow: 20px 0 40px rgba(29, 43, 95, 0.18);
  transform: translateX(-104%);
  transition: transform 0.28s ease;
  display: flex;
  flex-direction: column;
}

.drawer-open .drawer-mask {
  opacity: 1;
  pointer-events: auto;
}

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

.drawer-head {
  height: 76px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(89, 126, 247, 0.16);
}

.drawer-logo img {
  width: 142px;
  max-height: 48px;
  object-fit: contain;
}

.drawer-close {
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 50%;
  background: rgba(89, 126, 247, 0.10);
  color: #1D2B5F;
  font-size: 26px;
  cursor: pointer;
}

.drawer-nav {
  padding: 18px;
  display: grid;
  gap: 8px;
  overflow-y: auto;
}

.drawer-nav a {
  padding: 12px 14px;
  border-radius: 14px;
  color: #1D2B5F;
}

main {
  min-height: 56vh;
}

.container {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.banner-slider {
  max-width: 1200px;
  height: 400px;
  margin: 28px auto 36px;
  border-radius: 20px;
  background: #101827;
  box-shadow: 0 22px 48px rgba(16, 24, 39, 0.20);
  overflow: hidden;
  position: relative;
}

.banner-track,
.banner-slide {
  width: 100%;
  height: 100%;
}

.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.55s ease;
}

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

.banner-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #101827;
}

.banner-copy {
  position: absolute;
  left: 42px;
  bottom: 42px;
  width: min(520px, calc(100% - 84px));
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.28);
  border-radius: 20px;
  color: #FFFFFF;
  background: linear-gradient(135deg, rgba(29,43,95,0.82), rgba(89,126,247,0.58));
  backdrop-filter: blur(10px);
  box-shadow: 0 14px 32px rgba(16, 24, 39, 0.24);
}

.banner-copy h1,
.banner-copy h2 {
  margin: 0 0 10px;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.18;
  color: #FFFFFF;
}

.banner-copy p {
  margin: 0 0 18px;
  color: rgba(255,255,255,0.88);
}

.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,0.38);
  border-radius: 50%;
  background: rgba(255,255,255,0.18);
  color: #FFFFFF;
  font-size: 28px;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: all 0.22s ease;
}

.slider-arrow:hover {
  background: rgba(89,126,247,0.72);
}

.slider-prev { left: 18px; }
.slider-next { right: 18px; }

.slider-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  display: flex;
  justify-content: center;
  gap: 9px;
}

.slider-dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255,255,255,0.62);
  cursor: pointer;
  transition: all 0.22s ease;
}

.slider-dot.active {
  width: 28px;
  background: linear-gradient(135deg, #597EF7, #7AC4F5);
}

.section {
  padding: 64px 0;
}

.section.compact {
  padding: 40px 0;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 32px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  color: #597EF7;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before,
.eyebrow::after {
  content: "";
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, #597EF7, #7AC4F5);
  border-radius: 99px;
}

.section h1,
.section h2,
.page-hero h1,
.card h2,
.card h3,
.info-card h3,
.feature-text h2,
.footer-inner h2 {
  color: #1D2B5F;
  line-height: 1.28;
}

.section-head h2,
.page-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(28px, 4vw, 42px);
}

.section-head p,
.page-hero p,
.card p,
.info-card p,
.feature-text p,
.list-text,
.faq-item p {
  color: #5B647A;
}

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

.quick-card,
.card,
.info-card,
.faq-item,
.notice-box,
.policy-box,
.contact-box {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(89, 126, 247, 0.16);
  border-radius: 22px;
  box-shadow: 0 16px 36px rgba(89, 126, 247, 0.10);
}

.quick-card {
  padding: 20px;
  text-decoration: none;
  transition: all 0.22s ease;
}

.quick-card:hover,
.card:hover,
.info-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 42px rgba(89, 126, 247, 0.15);
}

.num {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(89, 126, 247, 0.12);
  color: #597EF7;
  font-weight: 900;
}

.quick-card h2,
.quick-card h3,
.info-card h3 {
  margin: 14px 0 8px;
  font-size: 19px;
}

.quick-card p,
.info-card p {
  margin: 0;
}

.intro-strip {
  padding: 28px 34px;
  border-radius: 26px;
  background: linear-gradient(135deg, rgba(89,126,247,0.12), rgba(122,196,245,0.13));
  border: 1px solid rgba(89,126,247,0.16);
  color: #3F4A66;
  font-size: 18px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.9);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.info-card {
  padding: 26px;
}

.check-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  margin: 8px 0;
  padding-left: 24px;
  position: relative;
  color: #3F4A66;
}

.check-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #597EF7;
  box-shadow: 0 0 0 4px rgba(89,126,247,0.12);
  position: absolute;
  left: 1px;
  top: 12px;
}

.feature-stack {
  display: grid;
  gap: 28px;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  align-items: center;
  padding: 28px;
  border-radius: 30px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(89,126,247,0.16);
  box-shadow: 0 18px 42px rgba(89,126,247,0.10);
}

.feature-row.reverse .feature-image {
  order: 2;
}

.feature-image {
  border-radius: 24px;
  overflow: hidden;
  background: #ECF0FF;
}

.feature-image img,
.card-image img,
.app-image img,
.support-image img,
.page-visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: linear-gradient(135deg, #F7F9FF, #EAF7FF);
}

.feature-image img {
  min-height: 270px;
}

.feature-text h2 {
  margin: 0 0 12px;
  font-size: 30px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 16px;
  color: #597EF7;
  font-weight: 800;
  text-decoration: none;
}

.text-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.text-link:hover::after {
  transform: translateX(4px);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  overflow: hidden;
  transition: all 0.22s ease;
}

.card-image {
  height: 190px;
  background: #ECF0FF;
}

.card-body {
  padding: 22px;
}

.tag {
  display: inline-flex;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(89,126,247,0.12);
  color: #597EF7;
  font-size: 13px;
  font-weight: 800;
}

.card h2,
.card h3 {
  margin: 12px 0 8px;
  font-size: 22px;
}

.app-panel,
.support-panel,
.page-panel {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 34px;
  align-items: center;
  padding: 30px;
  border-radius: 32px;
  background: rgba(255,255,255,0.80);
  border: 1px solid rgba(89,126,247,0.16);
  box-shadow: 0 20px 44px rgba(89,126,247,0.12);
}

.app-image,
.support-image,
.page-visual {
  min-height: 310px;
  overflow: hidden;
  border-radius: 26px;
  background: #ECF0FF;
}

.point-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 22px 0 0;
}

.point {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(89,126,247,0.08);
  color: #3F4A66;
  font-weight: 700;
}

.support-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 22px;
}

.support-cards article {
  padding: 18px;
  border-radius: 18px;
  background: rgba(89,126,247,0.08);
}

.support-cards h3 {
  margin: 0 0 8px;
  color: #1D2B5F;
}

.support-cards p {
  margin: 0;
  color: #5B647A;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.faq-item {
  padding: 24px;
}

.faq-item h2,
.faq-item h3 {
  margin: 0 0 10px;
  color: #1D2B5F;
  font-size: 20px;
}

.faq-item p {
  margin: 0;
}

.policy-box {
  padding: 30px;
  background: linear-gradient(135deg, rgba(255,255,255,0.88), rgba(234,247,255,0.86));
}

.policy-box ul,
.page-panel ul {
  margin: 16px 0 0;
  padding-left: 20px;
  color: #3F4A66;
}

.page-hero {
  padding: 72px 0 44px;
  background: linear-gradient(135deg, rgba(247,249,255,0.92), rgba(234,247,255,0.82));
}

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

.page-hero.no-image .container {
  display: block;
  max-width: 920px;
  text-align: center;
}

.page-hero p {
  font-size: 18px;
  margin: 0;
}

.breadcrumb {
  margin-bottom: 10px;
  color: #597EF7;
  font-weight: 800;
}

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

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

.content-card {
  padding: 26px;
  background: #FFFFFF;
  border: 1px solid rgba(89,126,247,0.16);
  border-radius: 24px;
  box-shadow: 0 16px 34px rgba(89,126,247,0.10);
}

.content-card h2,
.content-card h3 {
  margin: 0 0 12px;
  color: #1D2B5F;
}

.content-card p,
.content-card li {
  color: #5B647A;
}

.content-card ul {
  padding-left: 20px;
  margin: 14px 0 0;
}

.article-block {
  padding: 34px;
  border-radius: 28px;
  background: rgba(255,255,255,0.84);
  border: 1px solid rgba(89,126,247,0.16);
  box-shadow: 0 16px 36px rgba(89,126,247,0.10);
}

.article-block + .article-block {
  margin-top: 22px;
}

.article-block h2 {
  margin: 0 0 14px;
  color: #1D2B5F;
}

.article-block p {
  color: #3F4A66;
}

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

.contact-box {
  padding: 24px;
}

.contact-box h2,
.contact-box h3 {
  margin: 0 0 10px;
  color: #1D2B5F;
}

.contact-box p {
  margin: 0;
  color: #5B647A;
}

.site-footer {
  background: linear-gradient(135deg, #1F1F1F, #2B2B2B);
  color: #E8ECF5;
  margin-top: 40px;
}

.footer-inner {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  padding: 54px 0 34px;
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr 1.15fr;
  gap: 30px;
}

.footer-logo img {
  width: 150px;
  max-height: 50px;
  object-fit: contain;
}

.footer-brand p,
.footer-note p {
  color: rgba(232,236,245,0.78);
}

.footer-inner h2 {
  color: #FFFFFF;
  margin: 0 0 14px;
  font-size: 19px;
}

.footer-links div {
  display: grid;
  gap: 9px;
}

.footer-links a {
  color: rgba(232,236,245,0.80);
  text-decoration: none;
}

.footer-links a:hover {
  color: #7AC4F5;
}

.footer-btn {
  margin-top: 8px;
  padding: 10px 22px;
}

.copyright {
  border-top: 1px solid rgba(232,236,245,0.12);
  text-align: center;
  color: rgba(232,236,245,0.68);
  padding: 18px 20px 24px;
}

@media (max-width: 1100px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: inline-block; }
  .header-inner { display: grid; grid-template-columns: 48px 1fr auto; }
  .brand { justify-content: center; }
  .banner-slider { height: 330px; width: calc(100% - 40px); }
  .quick-grid,
  .info-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid,
  .content-grid,
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .header-inner { padding: 0 14px; min-height: 66px; gap: 10px; }
  .brand img { width: 128px; }
  .header-btn { padding: 9px 15px; font-size: 13px; }
  .container { width: min(100% - 28px, 1200px); }
  .banner-slider { height: 220px; width: calc(100% - 28px); margin: 18px auto 24px; border-radius: 16px; }
  .banner-copy { display: none; }
  .slider-arrow { width: 36px; height: 36px; font-size: 22px; }
  .slider-prev { left: 10px; }
  .slider-next { right: 10px; }
  .section { padding: 42px 0; }
  .quick-grid { display: flex; overflow-x: auto; gap: 12px; padding-bottom: 8px; scroll-snap-type: x mandatory; }
  .quick-card { min-width: 225px; scroll-snap-align: start; }
  .intro-strip { padding: 22px; font-size: 16px; }
  .info-grid,
  .card-grid,
  .faq-grid,
  .content-grid,
  .content-grid.two,
  .contact-grid,
  .support-cards,
  .point-grid { grid-template-columns: 1fr; }
  .feature-row,
  .feature-row.reverse,
  .app-panel,
  .support-panel,
  .page-panel,
  .page-hero .container { grid-template-columns: 1fr; padding: 22px; }
  .feature-row.reverse .feature-image { order: 0; }
  .feature-image img { min-height: 220px; }
  .app-image,
  .support-image,
  .page-visual { min-height: 220px; }
  .page-hero { padding: 42px 0 24px; }
  .footer-inner { grid-template-columns: 1fr; padding: 42px 0 28px; }
}