:root {
  color-scheme: light;
  font-family:
    "Segoe UI",
    "PingFang SC",
    "Microsoft YaHei",
    system-ui,
    sans-serif;
  line-height: 1.5;
  color: #1f2937;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #f3f4f6;
}

a {
  color: inherit;
}

.site-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-container {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.site-brand-logo {
  display: block;
  width: 150px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.site-nav-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 18px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 15px;
  color: #374151;
  transition: background 0.15s ease, color 0.15s ease;
}

.site-nav-item:hover {
  color: #2563eb;
}

.site-nav-item.active {
  background: #2563eb;
  color: #fff;
}

.site-nav-member {
  color: #dc2626;
  font-weight: 600;
}

.site-nav-member:hover {
  color: #b91c1c;
}

.site-main {
  flex: 1;
}

.site-footer {
  margin-top: auto;
  background: #fff;
  border-top: 1px solid #e5e7eb;
}

.site-footer-inner {
  padding: 18px 0;
  text-align: center;
  color: #9ca3af;
  font-size: 13px;
}

.site-footer-inner p {
  margin: 0;
}

.site-footer-links {
  margin-top: 8px !important;
  font-size: 13px;
}

.site-footer-links a {
  color: #6b7280;
  text-decoration: none;
}

.site-footer-links a:hover {
  color: #2563eb;
  text-decoration: underline;
}

.site-about-block {
  margin-bottom: 28px;
}

.site-about-block h2 {
  margin: 0 0 12px;
  font-size: 18px;
  color: #111827;
}

.site-about-block p,
.site-about-block li {
  margin: 0;
  color: #4b5563;
  line-height: 1.9;
  font-size: 15px;
}

.site-about-block ul,
.site-about-block ol {
  margin: 8px 0 0;
  padding-left: 20px;
}

.site-about-block a {
  color: #2563eb;
}

.site-about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 8px 0 0;
}

.site-btn-inline {
  min-width: 120px;
}

.site-btn-outline-dark {
  background: #fff;
  color: #2563eb;
  border: 2px solid #2563eb;
}

.site-article-lead {
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.9;
  color: #374151;
}

.site-compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.site-compare-table th,
.site-compare-table td {
  border: 1px solid #e5e7eb;
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

.site-compare-table th {
  background: #f8fafc;
  color: #111827;
  font-weight: 600;
}

.site-compare-table td {
  color: #4b5563;
  line-height: 1.7;
}

.site-about-block code {
  font-size: 0.92em;
  background: #f3f4f6;
  padding: 2px 6px;
  border-radius: 4px;
}

.site-article-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 20px;
}

.site-article-links a {
  color: #2563eb;
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
}

.site-article-links a:hover {
  text-decoration: underline;
}

.site-hero {
  background: linear-gradient(135deg, #2563eb 0%, #0ea5e9 55%, #14b8a6 100%);
  color: #fff;
  padding: 48px 0 56px;
}

.site-hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
}

.site-hero-shot {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.25);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.site-hero-shot img {
  display: block;
  width: 100%;
  height: auto;
}

.site-hero-copy h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
  font-weight: 800;
}

.site-hero-copy p {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.92);
}

.site-hero-meta {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
}

.site-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 140px;
  padding: 12px 24px;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.site-btn:hover {
  transform: translateY(-1px);
}

.site-btn-primary {
  background: #fff;
  color: #2563eb;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.15);
}

.site-btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.85);
}

.site-notice {
  background: #fff;
  border-bottom: 1px solid #fecaca;
  padding: 12px 0;
}

.site-notice p {
  margin: 0;
  font-size: 14px;
  color: #dc2626;
  text-align: center;
}

.site-section {
  padding: 48px 0;
}

.site-section-title {
  margin: 0 0 28px;
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  color: #111827;
}

.site-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.site-feature-card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 28px 24px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

.site-feature-card h3 {
  margin: 0 0 16px;
  font-size: 20px;
  color: #2563eb;
}

.site-feature-card ol {
  margin: 0;
  padding-left: 20px;
  color: #4b5563;
  line-height: 1.8;
}

.site-intro {
  background: #fff;
}

.site-intro p {
  margin: 0;
  max-width: 920px;
  margin-inline: auto;
  text-align: center;
  font-size: 16px;
  line-height: 1.9;
  color: #4b5563;
}

.site-updates {
  background: #fff;
  border-top: 1px solid #e5e7eb;
}

.site-updates ul {
  max-width: 760px;
  margin: 0 auto;
  padding-left: 20px;
  color: #4b5563;
  line-height: 1.9;
}

.site-contact {
  text-align: center;
  color: #6b7280;
  font-size: 14px;
}

.site-contact p {
  margin: 6px 0;
}

.site-panel {
  padding: 32px 0 48px;
}

.site-panel-card {
  background: #fff;
  border: 1px solid #dbeafe;
  border-top: 4px solid #2563eb;
  border-radius: 8px;
  padding: 28px 32px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.site-panel-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 24px;
  font-size: 22px;
  font-weight: 700;
  color: #1e40af;
}

.site-panel-title-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #2563eb;
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 700;
}

.site-features-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.site-features-sidebar {
  position: sticky;
  top: 16px;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
}

.site-features-sidebar a {
  display: block;
  padding: 12px 16px;
  text-decoration: none;
  color: #374151;
  border-bottom: 1px solid #f3f4f6;
  font-size: 14px;
}

.site-features-sidebar a:hover {
  background: #eff6ff;
  color: #2563eb;
}

.site-feature-block {
  scroll-margin-top: 88px;
  padding-bottom: 28px;
  margin-bottom: 28px;
  border-bottom: 1px dashed #e5e7eb;
}

.site-feature-block:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.site-feature-block h3 {
  margin: 0 0 12px;
  font-size: 18px;
  color: #111827;
}

.site-feature-block p,
.site-feature-block li {
  margin: 0;
  color: #4b5563;
  line-height: 1.8;
  font-size: 15px;
}

.site-feature-block ul {
  margin: 8px 0 0;
  padding-left: 20px;
}

.site-faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 28px;
}

.site-faq-link {
  color: #374151;
  text-decoration: none;
  font-size: 15px;
  line-height: 1.7;
}

.site-faq-link:hover {
  color: #2563eb;
}

.site-faq-link.hot {
  color: #dc2626;
  font-weight: 600;
}

.site-faq-detail {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid #e5e7eb;
}

.site-faq-item {
  scroll-margin-top: 88px;
  padding: 20px 0;
  border-bottom: 1px solid #f3f4f6;
}

.site-faq-item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: #111827;
}

.site-faq-item p {
  margin: 0;
  color: #4b5563;
  line-height: 1.8;
  font-size: 15px;
}

@media (max-width: 960px) {
  .site-header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 0;
  }

  .site-hero-inner {
    grid-template-columns: 1fr;
  }

  .site-feature-grid,
  .site-faq-grid,
  .site-features-layout {
    grid-template-columns: 1fr;
  }

  .site-features-sidebar {
    position: static;
  }
}