:root {
  --primary: #4a86fe;
  --primary-soft: #eaf1ff;
  --primary-deep: #3766d9;
  --ink: #1f1e3c;
  --ink-soft: #2f3650;
  --muted: #737c89;
  --border: #eef1f6;
  --surface: #ffffff;
  --surface-alt: #f7f8fb;
  --shadow-card: 0 2px 8px rgba(15, 23, 42, 0.04), 0 12px 32px rgba(15, 23, 42, 0.05);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  min-height: 100%;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--surface);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

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

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

.hero-bg {
  position: absolute;
  inset: 0 0 auto 0;
  height: 720px;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}
.hero-bg::before,
.hero-bg::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
}
.hero-bg::before {
  width: 560px;
  height: 560px;
  background: rgba(74, 134, 254, 0.28);
  top: -200px;
  right: -160px;
}
.hero-bg::after {
  width: 440px;
  height: 440px;
  background: rgba(240, 128, 64, 0.18);
  top: 120px;
  left: -140px;
}

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
  padding-top: env(safe-area-inset-top);
}
.site-nav .nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}
.site-nav .brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.site-nav .brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  box-shadow: 0 6px 16px rgba(74, 134, 254, 0.28);
}
.site-nav .brand-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.site-nav .nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.site-nav .nav-links::-webkit-scrollbar {
  display: none;
}
.site-nav .nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
  border-radius: 8px;
  transition: color 0.15s ease, background 0.15s ease;
}
.site-nav .nav-links a:hover {
  color: var(--ink);
  background: var(--surface-alt);
}
.site-nav .nav-links a.active {
  color: var(--primary);
}
.site-nav .nav-links a.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -1px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

main {
  flex: 1;
  position: relative;
  z-index: 1;
}

.hero {
  padding: 96px 24px 72px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.hero .brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
}
.hero .brand-mark img {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(74, 134, 254, 0.36);
}
.hero .brand-mark span {
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
}
.hero h1 {
  font-size: 52px;
  line-height: 1.18;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--ink);
  margin: 0 auto 20px;
  max-width: 720px;
}
.hero h1 .accent {
  color: var(--primary);
}
.hero .lede {
  font-size: 17px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto 32px;
}
.hero .cta-row {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
}
.pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.4);
  }
}
@media (prefers-reduced-motion: reduce) {
  .pill .dot {
    animation: none;
  }
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  transition: transform 0.12s ease, background 0.15s ease, color 0.15s ease;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-deep);
  transform: translateY(-1px);
}
.btn-ghost {
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  color: var(--primary);
  border-color: rgba(74, 134, 254, 0.4);
}

.page-header {
  padding: 88px 24px 40px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.page-header .eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.page-header h1 {
  font-size: 40px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.page-header .subtitle {
  font-size: 16.5px;
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto;
}
.page-header .subtitle .subtitle-meta {
  display: inline-block;
  margin: 0 8px;
  white-space: nowrap;
}

.section {
  padding: 72px 24px;
  position: relative;
  z-index: 1;
}
.section + .section {
  padding-top: 32px;
}
.section-alt {
  background: var(--surface-alt);
}
.section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.section-lede {
  font-size: 16px;
  color: var(--muted);
  max-width: 720px;
  margin-bottom: 40px;
  line-height: 1.8;
}
.prose h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  margin: 32px 0 12px;
}
.prose h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin: 24px 0 10px;
}
.prose p {
  font-size: 15.5px;
  color: var(--ink-soft);
  margin-bottom: 14px;
  line-height: 1.85;
}
.prose ul {
  list-style: none;
  padding: 0;
  margin: 8px 0 18px;
}
.prose ul li {
  position: relative;
  padding-left: 20px;
  color: var(--ink-soft);
  font-size: 15.5px;
  line-height: 1.85;
  margin-bottom: 6px;
}
.prose ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}
.prose strong {
  color: var(--ink);
  font-weight: 600;
}
.prose ol {
  padding-left: 24px;
  margin: 8px 0 18px;
}
.prose ol li {
  color: var(--ink-soft);
  font-size: 15.5px;
  line-height: 1.85;
  margin-bottom: 6px;
}

.card-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.card-grid-wide {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.link-accent {
  color: var(--primary);
  font-weight: 600;
}
.card {
  padding: 28px 24px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow-card);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06), 0 18px 40px rgba(15, 23, 42, 0.08);
}
.card .card-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 17px;
  margin-bottom: 16px;
}
.card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.card p {
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.75;
}

.feature-list {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}
.feature-block {
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--surface);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
}
.feature-block .feature-tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.feature-block h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 14px;
}
.feature-block p {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.85;
  margin-bottom: 10px;
}
.feature-block ul {
  margin-top: 8px;
}
.feature-block ul li {
  color: var(--ink-soft);
  font-size: 14.5px;
}

.info-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--surface);
}
.info-table th,
.info-table td {
  padding: 14px 20px;
  font-size: 15px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.info-table tr:last-child th,
.info-table tr:last-child td {
  border-bottom: none;
}
.info-table th {
  width: 32%;
  font-weight: 600;
  color: var(--ink);
  background: var(--surface-alt);
}
.info-table td {
  color: var(--ink-soft);
}
.table-wrap {
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.prose .table-wrap {
  margin: 8px 0 22px;
}

.info-table-cols {
  min-width: 720px;
}
.info-table-cols thead th {
  width: auto;
  padding: 12px 16px;
  font-size: 14px;
  white-space: nowrap;
  background: var(--surface-alt);
  color: var(--ink);
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}
.info-table-cols tbody th {
  width: auto;
  white-space: nowrap;
  font-weight: 600;
  color: var(--ink);
  background: var(--surface-alt);
}
.info-table-cols tbody td {
  min-width: 140px;
}

.toc {
  padding: 20px 24px;
  margin-bottom: 40px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 14px;
}
.toc .toc-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 12px;
  letter-spacing: 0.02em;
}
.toc ol {

  columns: 2;
  column-gap: 32px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.toc ol li {
  break-inside: avoid;
  margin: 0 0 4px;
  padding: 0;
  font-size: 14.5px;
  line-height: 1.6;
}
.toc ol li::before {
  display: none;
}
.toc ol li a {
  color: var(--ink-soft);
  transition: color 0.15s ease;
  display: inline-block;
  padding: 2px 0;
}
.toc ol li a:hover {
  color: var(--primary);
}

html {
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}
:target {
  scroll-margin-top: 88px;
}

.site-nav.site-nav-minimal {
  position: static;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: none;

  padding-top: calc(env(safe-area-inset-top) + 24px);
}
.site-nav.site-nav-minimal .nav-inner {
  height: 72px;
  justify-content: center;
}
.site-nav.site-nav-minimal .brand {
  gap: 12px;
}
.site-nav.site-nav-minimal .brand-logo {
  width: 48px;
  height: 48px;
  border-radius: 14px;
}
.site-nav.site-nav-minimal .brand-name {
  font-size: 20px;
}
.page-legal :target {
  scroll-margin-top: 16px;
}

.value-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.value-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.value-item {
  padding: 20px 22px;
  border-left: 3px solid var(--primary);
  background: var(--surface-alt);
  border-radius: 0 12px 12px 0;
}
.value-item h4 {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}
.value-item p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.page-header .pill {
  margin-top: 14px;
}

.store-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(272px, 1fr));
}
.store-btn {
  appearance: none;
  -webkit-appearance: none;
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow-card);
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.store-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06), 0 18px 40px rgba(15, 23, 42, 0.08);
}
.store-btn:disabled {
  background: var(--surface-alt);
  box-shadow: none;
  cursor: not-allowed;
}
.store-btn:disabled .store-icon {
  background: #e9ecf2;
  color: #8b94a3;
}
.store-btn:disabled .store-name {
  color: #5f6775;
}
.store-btn:disabled .store-sub {
  color: var(--muted);
}
.store-btn .store-icon {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  background: var(--primary-soft);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13.5px;
}
.store-btn .store-text {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.store-btn .store-name {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
}
.store-btn .store-sub {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}
.store-btn .store-flag {
  flex: none;
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--border);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.qr-block {
  display: flex;
  align-items: center;
  gap: 28px;
  max-width: 620px;
  margin: 0 auto;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow-card);
}
.qr-block .qr-code {
  flex: none;
  width: 176px;
  height: 176px;
  border-radius: 14px;
}
.qr-block .qr-text h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.qr-block .qr-text p {
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.75;
}

.callout {
  border: 1px solid var(--border);
  background: linear-gradient(135deg, #eaf1ff 0%, #fbfbfd 100%);
  border-radius: 20px;
  padding: 32px 28px;
  text-align: center;
}
.callout h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.callout p {
  font-size: 15px;
  color: var(--ink-soft);
  margin-bottom: 20px;
  line-height: 1.75;
}

.site-footer {
  padding: 40px 24px calc(32px + env(safe-area-inset-bottom));
  text-align: center;
  font-size: 13.5px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
  background: var(--surface);
}
.site-footer .footer-brand {
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 8px;
}
.site-footer .footer-meta {
  margin-bottom: 4px;
  line-height: 1.75;
}
.site-footer .footer-meta a {
  color: var(--muted);
}
.site-footer .footer-links {
  margin-bottom: 16px;
  font-size: 14.5px;
  font-weight: 600;
}
.site-footer .footer-links a {
  color: var(--ink-soft);
}
.site-footer .footer-meta a:hover {
  color: var(--primary);
}
.site-footer .divider {
  display: inline-block;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--border);
  margin: 0 10px;
  vertical-align: middle;
}
.site-footer .beian {
  display: inline-block;
  margin-top: 6px;
  transition: color 0.15s ease;
}
.site-footer .beian:hover {
  color: var(--primary);
}

@media (max-width: 720px) {
  .hero {
    padding: 72px 20px 56px;
  }
  .hero h1 {
    font-size: 34px;
  }
  .hero .brand-mark img {
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }
  .hero .brand-mark span {
    font-size: 22px;
  }
  .hero .lede {
    font-size: 15.5px;
  }

  .page-header {
    padding: 64px 20px 32px;
  }
  .page-header h1 {
    font-size: 30px;
  }
  .page-header .subtitle .subtitle-meta {
    display: block;
    margin: 2px 0;
  }

  .section {

    padding: 56px 0;
  }
  .section-title {
    font-size: 24px;
  }

  .site-nav .nav-inner {
    height: 56px;
    gap: 12px;
  }
  .site-nav .brand-name {
    font-size: 16px;
  }
  .site-nav .brand-logo {
    width: 30px;
    height: 30px;
    border-radius: 9px;
  }
  .site-nav .nav-links a {
    padding: 0 10px;
    font-size: 14px;
    height: 36px;
  }
  .site-nav .nav-links a.active::after {
    left: 10px;
    right: 10px;
  }

  .info-table th,
  .info-table td {
    padding: 12px 14px;
    font-size: 14px;
  }
  .info-table th {
    width: 38%;
  }

  .info-table-cols {
    min-width: 0;
  }
  .info-table-cols thead {
    display: none;
  }
  .info-table-cols tbody tr {
    display: block;
    padding: 18px 18px;
    border-bottom: 1px solid var(--border);
  }
  .info-table-cols tbody tr:last-child {
    border-bottom: none;
  }
  .info-table-cols tbody th,
  .info-table-cols tbody td {
    display: block;
    padding: 6px 0;
    border: none;
    background: transparent;
    width: auto;
    font-size: 14.5px;
    line-height: 1.7;
    white-space: normal;
  }
  .info-table-cols tbody th {
    font-size: 15.5px;
    font-weight: 700;
    color: var(--ink);
    padding-bottom: 10px;
    margin-bottom: 8px;
    border-bottom: 1px dashed var(--border);
  }
  .info-table-cols tbody td {
    color: var(--ink-soft);
    min-width: 0;
  }
  .info-table-cols tbody td::before {
    content: attr(data-label) "：";
    font-weight: 600;
    color: var(--ink);
    margin-right: 2px;
  }

  .toc {
    padding: 16px 16px;
    margin-bottom: 28px;
  }
  .toc ol {
    columns: 1;
  }
  .toc ol li {
    margin-bottom: 2px;
  }

  .feature-block {
    padding: 24px 20px;
  }
  .value-grid-3 {
    grid-template-columns: 1fr;
  }
  .callout {
    padding: 26px 20px;
  }

  .store-btn {
    padding: 16px 16px;
    gap: 12px;
  }
  .store-btn .store-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    font-size: 13px;
  }
  .qr-block {
    flex-direction: column;
    gap: 20px;
    padding: 24px 20px;
    text-align: center;
  }
}

@media print {
  * {
    box-shadow: none !important;
  }
  html,
  body {
    background: #fff !important;
    color: #000 !important;
  }
  .hero-bg,
  .site-nav,
  .site-footer .beian {
    display: none !important;
  }
  main {
    padding: 0;
  }
  .container {
    max-width: 100%;
    padding: 0;
  }
  .section,
  .section + .section {
    padding: 12px 0;
  }
  .section-alt {
    background: transparent;
  }
  .page-header {
    padding: 0 0 12px;
    text-align: left;
  }
  .page-header .eyebrow {
    display: none;
  }
  .page-header h1 {
    font-size: 22pt;
  }
  .page-header .subtitle {
    color: #333;
    font-size: 11pt;
  }
  .page-header .subtitle .subtitle-meta {
    display: inline-block;
    margin: 0 8px;
  }
  .prose h3 {
    font-size: 13pt;
    margin: 18px 0 8px;
    page-break-after: avoid;
    break-after: avoid;
  }
  .prose p,
  .prose li {
    font-size: 10.5pt;
    color: #000;
    line-height: 1.65;
  }
  .prose ol,
  .prose ul {
    page-break-inside: avoid;
    break-inside: avoid;
  }
  .toc {
    background: transparent;
    border: 1px solid #999;
    padding: 12px 16px;
    margin-bottom: 20px;
    page-break-after: always;
    break-after: page;
  }
  .toc ol {
    columns: 2;
    column-gap: 20px;
  }
  .toc ol li a {
    color: #000;
    text-decoration: none;
  }
  .table-wrap {
    overflow: visible;
    border: none;
    border-radius: 0;
  }
  .info-table,
  .info-table-cols {
    min-width: 0;
    page-break-inside: avoid;
    break-inside: avoid;
    border: 1px solid #999;
  }
  .info-table th,
  .info-table td,
  .info-table-cols thead th,
  .info-table-cols tbody th,
  .info-table-cols tbody td {
    border: 1px solid #999 !important;
    padding: 6px 8px;
    font-size: 10pt;
    color: #000;
    background: transparent;
    white-space: normal;
  }
  .info-table-cols thead th {
    background: #f0f0f0 !important;
    font-weight: 700;
  }
  a {
    color: #000;
    text-decoration: underline;
  }
  .site-footer {
    border-top: 1px solid #999;
    padding: 12px 0;
    text-align: left;
    font-size: 9pt;
  }
}