/* ===== CSS Variables ===== */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --primary-50: #eff6ff;
  --secondary: #0ea5e9;
  --accent: #f59e0b;
  --accent-light: #fef3c7;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-light: #94a3b8;
  --bg: #ffffff;
  --bg-light: #f8fafc;
  --bg-gray: #f1f5f9;
  --border: #e2e8f0;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --max-w: 1200px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: all var(--transition);
}

a:hover {
  color: var(--primary-dark);
}

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

ul,
ol {
  list-style: none;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.5px;
}

.logo svg {
  width: 32px;
  height: 32px;
}

.logo span {
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2.5px;
  background: var(--primary);
  border-radius: 2px;
}

.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff !important;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
  transition: all var(--transition);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
  color: #fff !important;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text);
}

/* ===== Hero ===== */
.hero {
  padding: 80px 0 60px;
  background: linear-gradient(165deg, #eff6ff 0%, #dbeafe 40%, #e0f2fe 70%, #f0f9ff 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.06) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 48px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text);
  letter-spacing: -1px;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 12px;
  font-weight: 400;
}

.hero .tagline {
  font-size: 16px;
  color: var(--text-light);
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
  color: #fff;
}

.btn-outline {
  background: #fff;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary-50);
  border-color: var(--primary-dark);
}

/* Stats Bar */
.stats-bar {
  display: flex;
  gap: 0;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-width: 800px;
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: 24px 16px;
  border-right: 1px solid var(--border);
  transition: background var(--transition);
}

.stat-item:last-child {
  border-right: none;
}

.stat-item:hover {
  background: var(--primary-50);
}

.stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 4px;
}

/* ===== Section ===== */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--bg-light);
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.section-title em {
  font-style: normal;
  color: var(--primary);
}

.section-desc {
  text-align: center;
  color: var(--text-secondary);
  font-size: 17px;
  max-width: 640px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

/* ===== Feature Cards ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
  border-color: var(--primary-light);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary-light), #e0f2fe);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.feature-icon svg {
  width: 26px;
  height: 26px;
  color: var(--primary);
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
}

.feature-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.feature-link:hover {
  gap: 8px;
  color: var(--primary-dark);
}

.feature-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}

.feature-card:hover .feature-link svg {
  transform: translateX(2px);
}

/* ===== Solution Cards ===== */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.solution-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.solution-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
  border-color: var(--primary-light);
}

.solution-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 28px;
}

.solution-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.solution-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.solution-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
}

.solution-link:hover {
  gap: 10px;
  color: var(--primary-dark);
}

/* ===== Why Section ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.why-item {
  text-align: center;
  padding: 24px;
}

.why-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  background: linear-gradient(135deg, var(--primary-50), #e0f2fe);
}

.why-item h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.why-item p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 40%, #2563eb 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cta-section h2 {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section .btn {
  background: #fff;
  color: var(--primary);
  padding: 16px 40px;
  font-size: 18px;
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.cta-section .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* ===== Footer ===== */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 60px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-col p {
  font-size: 14px;
  line-height: 1.8;
}

.footer-col a {
  display: block;
  color: #94a3b8;
  font-size: 14px;
  padding: 5px 0;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: #64748b;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    gap: 16px;
  }

  .nav-links.show {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .hero {
    padding: 48px 0 40px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero .subtitle {
    font-size: 17px;
  }

  .stats-bar {
    flex-wrap: wrap;
  }

  .stat-item {
    flex: 1 1 50%;
    border-bottom: 1px solid var(--border);
  }

  .section-title {
    font-size: 26px;
  }

  .feature-grid,
  .solution-grid,
  .why-grid {
    grid-template-columns: 1fr;
  }

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

  .cta-section h2 {
    font-size: 28px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 26px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .stats-bar {
    flex-direction: column;
  }

  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.feature-hero {
  padding: 60px 0 50px;
  background: linear-gradient(165deg, #eff6ff 0%, #dbeafe 40%, #e0f2fe 70%, #f0f9ff 100%);
  position: relative;
  overflow: hidden;
}

.feature-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.feature-hero .container {
  position: relative;
  z-index: 1;
}

.feature-hero h1 {
  font-size: 40px;
  font-weight: 900;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.feature-hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-hero p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 650px;
  margin-bottom: 24px;
}

.breadcrumb {
  padding: 16px 0;
  font-size: 14px;
  color: var(--text-light);
}

.breadcrumb a {
  color: var(--text-light);
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb span {
  margin: 0 8px;
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-q {
  padding: 18px 24px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-light);
}

.faq-q::after {
  content: '+';
  font-size: 22px;
  color: var(--primary);
  transition: transform var(--transition);
}

.faq-item.open .faq-q::after {
  transform: rotate(45deg);
}

.faq-a {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
  color: var(--text-secondary);
  font-size: 15px;
}

.faq-item.open .faq-a {
  padding: 18px 24px;
  max-height: 300px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 15px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  transition: all var(--transition);
  background: #fff;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-light);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}

.pricing-card {
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  position: relative;
  transition: all var(--transition);
  background: #fff;
}

.pricing-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: var(--primary);
  transform: scale(1.03);
}

.pricing-card.featured::before {
  content: '推荐';
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  padding: 4px 20px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
}

.pricing-name {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 4px;
}

.pricing-price {
  font-size: 36px;
  font-weight: 900;
  color: var(--primary);
  margin: 16px 0 8px;
}

.pricing-price span {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-light);
}

.pricing-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.pricing-features {
  text-align: left;
  margin-bottom: 28px;
}

.pricing-features li {
  padding: 8px 0;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-features li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}

.pricing-features li.disabled {
  color: var(--text-light);
}

.pricing-features li.disabled::before {
  content: '—';
  color: #cbd5e1;
}

.cta-banner {
  background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 40%, #2563eb 100%);
  color: #fff;
  text-align: center;
  padding: 56px 32px;
  border-radius: var(--radius-lg);
  margin: 40px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-banner h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  opacity: 0.9;
  margin-bottom: 24px;
  font-size: 17px;
  position: relative;
  z-index: 1;
}

.cta-banner .btn {
  background: #fff;
  color: var(--primary);
  position: relative;
  z-index: 1;
}

@media (max-width: 768px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card.featured {
    transform: none;
  }
}


/* ========== 导航栏 ========== */
.main-nav {
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 22px;
  font-weight: bold;
  color: #1a73e8;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  color: #555;
  text-decoration: none;
  font-size: 15px;
  padding: 8px 16px;
  border-radius: 6px;
  transition: all 0.2s;
  position: relative;
}

.nav-links a:hover {
  color: #1a73e8;
  background: #f0f7ff;
}

/* 当前页面高亮 + 下划线 */
.nav-links a.active {
  color: #1a73e8;
  font-weight: 500;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: #1a73e8;
  border-radius: 1px;
}

/* 手机端汉堡菜单按钮 */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #333;
  padding: 4px 8px;
}

/* ========== 手机端响应式 ========== */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 12px 0;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 12px 20px;
    border-radius: 0;
    width: 100%;
  }

  .nav-links a.active::after {
    left: 20px;
    right: auto;
    width: 24px;
    bottom: 8px;
  }
}



/* ========== 页脚 ========== */
.site-footer {
  background: #1a1a2e;
  color: #ccc;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding: 60px 20px 40px;
}

.footer-section h3 {
  color: #fff;
  font-size: 20px;
  margin-bottom: 12px;
}

.footer-section h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
}

.footer-section a {
  display: block;
  color: #aaa;
  text-decoration: none;
  margin-bottom: 10px;
  font-size: 14px;
  transition: color 0.2s;
}

.footer-section a:hover {
  color: #fff;
}

.footer-section p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 6px;
}

.footer-brand p {
  line-height: 1.8;
  opacity: 0.8;
}

.footer-bottom {
  border-top: 1px solid #333;
  padding: 20px 0;
}

.footer-bottom .container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer-bottom p {
  font-size: 14px;
  color: #888;
}

.footer-bottom-links {
  font-size: 14px;
}

.footer-bottom-links a {
  color: #2563eb;
  text-decoration: none;
}

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

.footer-bottom-links span {
  margin: 0 8px;
  color: #555;
}

/* ========== 公共容器 ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  /* 手机端隐藏，后续可加汉堡菜单 */

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 40px 20px 20px;
  }

  .footer-bottom .container {
    flex-direction: column;
    gap: 10px;
  }
}