/* ============================================================
   全球认证服务页面 — 完全独立自包含样式表
   文件: _page-global.css
   前缀: global-
   特性:
   - 不依赖任何外部CSS变量/文件
   - 内置完整CSS变量回退定义（前20行起）
   - 国际化专业视觉风格
   - 4大区域地图色彩语义（北美红/欧盟蓝/亚太绿/其他橙）
   - 响应式断点: 992px / 640px
   ============================================================ */

/* ==================== CSS变量回退定义 ==================== */
:root {
  /* 基础色彩 */
  --global-primary: #1a56db;
  --global-primary-dark: #1e429f;
  --global-primary-light: #e1effe;
  --global-secondary: #047857;
  --global-accent: #d97706;
  --global-danger: #dc2626;
  --global-danger-light: #fef2f2;
  --global-white: #ffffff;
  --global-black: #111827;
  /* 文字 */
  --global-text-primary: #111827;
  --global-text-secondary: #374151;
  --global-text-tertiary: #6b7280;
  --global-text-muted: #9ca3af;
  /* 背景 */
  --global-bg-body: #f8fafc;
  --global-bg-card: #ffffff;
  --global-bg-dark: #0f172a;
  --global-bg-dark-card: rgba(255,255,255,0.06);
  /* 边框 */
  --global-border: #e5e7eb;
  --global-border-light: #f3f4f6;
  --global-border-dark: rgba(255,255,255,0.1);
  /* 圆角与阴影 */
  --global-radius: 12px;
  --global-radius-sm: 8px;
  --global-shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --global-shadow: 0 4px 12px rgba(0,0,0,0.08);
  --global-shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
  /* 间距 */
  --global-gap: 24px;
  --global-gap-sm: 16px;
  --global-section-pad: 80px;
  /* 区域色彩 — 地图语义 */
  --region-na: #dc2626;
  --region-na-light: #fef2f2;
  --region-na-grad-start: #dc2626;
  --region-na-grad-end: #f87171;
  --region-eu: #2563eb;
  --region-eu-light: #eff6ff;
  --region-eu-grad-start: #2563eb;
  --region-eu-grad-end: #60a5fa;
  --region-ap: #059669;
  --region-ap-light: #ecfdf5;
  --region-ap-grad-start: #059669;
  --region-ap-grad-end: #34d399;
  --region-ot: #d97706;
  --region-ot-light: #fffbeb;
  --region-ot-grad-start: #d97706;
  --region-ot-grad-end: #fbbf24;
}

/* ==================== 基础布局属性 ==================== */
.global-section {
  padding: var(--global-section-pad) 0;
  background: var(--global-bg-body);
}

.global-section-dark {
  background: var(--global-bg-dark);
  color: var(--global-white);
}

.global-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--global-gap);
  box-sizing: border-box;
}

.global-section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--global-text-primary);
  text-align: center;
  margin: 0 0 16px;
  line-height: 1.3;
}

.global-section-subtitle {
  font-size: 16px;
  color: var(--global-text-tertiary);
  text-align: center;
  margin: 0 0 48px;
  line-height: 1.6;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.global-section-dark .global-section-title {
  color: var(--global-white);
}

.global-section-dark .global-section-subtitle {
  color: rgba(255,255,255,0.7);
}

/* ==================== 1. global-domain-grid / global-domain-grid-3col ==================== */
.global-domain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--global-gap);
  margin: 40px 0;
}

.global-domain-grid-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--global-gap);
  margin: 40px 0;
}

/* ==================== 2. global-domain-card ==================== */
.global-domain-card {
  position: relative;
  padding: 32px 28px;
  border-radius: var(--global-radius);
  background: var(--global-bg-card);
  border: 1px solid var(--global-border);
  box-shadow: var(--global-shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

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

.global-domain-card strong {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--global-text-primary);
  margin-bottom: 10px;
}

.global-domain-card p {
  font-size: 14px;
  color: var(--global-text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ==================== 3. global-cert-grid / global-cert-card ==================== */
.global-cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--global-gap);
  margin: 40px 0;
}

.global-cert-card {
  position: relative;
  padding: 32px 28px;
  border-radius: var(--global-radius);
  background: var(--global-bg-card);
  border: 1px solid var(--global-border);
  box-shadow: var(--global-shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}

.global-cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--global-shadow-lg);
}

.global-cert-card .global-cert-region {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.global-cert-card.america .global-cert-region {
  background: var(--region-na-light);
  color: var(--region-na);
}

.global-cert-card.europe .global-cert-region {
  background: var(--region-eu-light);
  color: var(--region-eu);
}

.global-cert-card.asia .global-cert-region {
  background: var(--region-ap-light);
  color: var(--region-ap);
}

.global-cert-card.other .global-cert-region {
  background: var(--region-ot-light);
  color: var(--region-ot);
}

.global-cert-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--global-text-primary);
  margin: 0 0 10px;
  line-height: 1.35;
}

.global-cert-card p {
  font-size: 14px;
  color: var(--global-text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ==================== 4. global-table-wrap / global-std-table ==================== */
.global-table-wrap {
  overflow-x: auto;
  margin: 40px 0;
  border-radius: var(--global-radius);
  border: 1px solid var(--global-border);
  box-shadow: var(--global-shadow-sm);
}

.global-std-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--global-bg-card);
  font-size: 14px;
}

.global-std-table thead th {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  color: var(--global-text-primary);
  font-weight: 700;
  text-align: left;
  padding: 14px 16px;
  border-bottom: 2px solid var(--global-border);
  white-space: nowrap;
}

.global-std-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--global-border-light);
  color: var(--global-text-secondary);
  vertical-align: middle;
}

.global-std-table tbody tr:last-child td {
  border-bottom: none;
}

.global-std-table tbody tr:nth-child(even) {
  background: #fafbfc;
}

.global-std-table tbody tr:hover {
  background: #f0f7ff;
}

/* ==================== 5. global-card-grid / global-service-card ==================== */
.global-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--global-gap);
  margin: 40px 0;
}

.global-service-card {
  position: relative;
  padding: 36px 28px;
  border-radius: var(--global-radius);
  background: var(--global-bg-dark-card);
  border: 1px solid var(--global-border-dark);
  backdrop-filter: blur(4px);
  transition: transform .25s ease, box-shadow .25s ease;
}

.global-service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
}

.global-service-card .global-icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  font-size: 24px;
  border-radius: var(--global-radius-sm);
  background: rgba(255,255,255,0.08);
  margin-bottom: 18px;
}

.global-service-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--global-white);
  margin: 0 0 12px;
  line-height: 1.35;
}

.global-service-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin: 0;
}

/* ==================== 6. global-capability-list / global-capability-item ==================== */
.global-capability-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--global-gap);
  margin: 40px 0;
}

.global-capability-item {
  position: relative;
  padding: 28px;
  border-radius: var(--global-radius);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--global-border-dark);
  backdrop-filter: blur(4px);
  transition: transform .25s ease, background .25s ease;
}

.global-capability-item:hover {
  transform: translateY(-3px);
  background: rgba(255,255,255,0.1);
}

.global-capability-item strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--global-white);
  margin-bottom: 10px;
}

.global-capability-item span {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
}

/* ==================== 7. global-process / global-process-step ==================== */
.global-process {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin: 48px 0;
  position: relative;
}

.global-process::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 60px;
  right: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--region-na), var(--region-eu), var(--region-ap), var(--region-ot));
  border-radius: 2px;
  z-index: 0;
}

.global-process-step {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
  max-width: 160px;
}

.global-process-step::before {
  content: attr(data-step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--global-primary) 0%, #3b82f6 100%);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 4px 16px rgba(26,86,219,0.35);
  margin-bottom: 14px;
  flex-shrink: 0;
}

.global-process-step {
  font-size: 14px;
  font-weight: 600;
  color: var(--global-text-primary);
  line-height: 1.45;
}

/* ==================== Section 1: 北美市场 — 横向标签页 ==================== */
.global-tabs {
  margin: 40px 0;
  border-radius: var(--global-radius);
  background: var(--global-bg-card);
  border: 1px solid var(--global-border);
  box-shadow: var(--global-shadow);
  overflow: hidden;
}

.global-tab-nav {
  display: flex;
  border-bottom: 1px solid var(--global-border);
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.global-tab-btn {
  flex: 1;
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--global-text-tertiary);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  transition: all .2s ease;
  position: relative;
}

.global-tab-btn:hover {
  color: var(--global-text-primary);
  background: rgba(255,255,255,0.5);
}

.global-tab-btn.active {
  color: var(--region-na);
  border-bottom-color: var(--region-na);
  background: #fff;
}

.global-tab-panels {
  padding: 36px 40px;
}

.global-tab-panel {
  display: none;
}

.global-tab-panel.active {
  display: block;
  animation: globalFadeIn .3s ease;
}

@keyframes globalFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.global-tab-content {
  display: flex;
  align-items: flex-start;
  gap: 40px;
}

.global-tab-text {
  flex: 1;
}

.global-tab-text h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--global-text-primary);
  margin: 0 0 14px;
}

.global-tab-text p {
  font-size: 15px;
  color: var(--global-text-secondary);
  line-height: 1.7;
  margin: 0 0 18px;
}

.global-tab-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.global-tab-list li {
  font-size: 14px;
  color: var(--global-text-secondary);
  padding: 8px 0 8px 24px;
  position: relative;
  border-bottom: 1px dashed var(--global-border-light);
}

.global-tab-list li:last-child {
  border-bottom: none;
}

.global-tab-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--region-na);
}

.global-tab-badge {
  flex-shrink: 0;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--region-na-grad-start), var(--region-na-grad-end));
  box-shadow: 0 8px 24px rgba(220,38,38,0.25);
}

/* ==================== Section 2: 欧洲市场 — 左右分栏 ==================== */
.global-split {
  display: flex;
  gap: 32px;
  margin: 40px 0;
  min-height: 420px;
}

.global-split-list {
  width: 320px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.global-split-item {
  padding: 18px 20px;
  border-radius: var(--global-radius-sm);
  background: var(--global-bg-card);
  border: 1px solid var(--global-border);
  cursor: pointer;
  transition: all .2s ease;
  position: relative;
}

.global-split-item:hover {
  border-color: var(--region-eu);
  box-shadow: var(--global-shadow-sm);
}

.global-split-item.active {
  border-color: var(--region-eu);
  background: var(--region-eu-light);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.global-split-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 60%;
  background: var(--region-eu);
  border-radius: 0 4px 4px 0;
}

.global-split-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 6px;
}

.global-split-tag.eu {
  background: var(--region-eu-light);
  color: var(--region-eu);
}

.global-split-item h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--global-text-primary);
  margin: 0 0 4px;
}

.global-split-item p {
  font-size: 13px;
  color: var(--global-text-tertiary);
  margin: 0;
}

.global-split-detail {
  flex: 1;
  border-radius: var(--global-radius);
  background: var(--global-bg-card);
  border: 1px solid var(--global-border);
  padding: 36px 40px;
  box-shadow: var(--global-shadow-sm);
}

.global-split-panel {
  display: none;
}

.global-split-panel.active {
  display: block;
  animation: globalFadeIn .3s ease;
}

.global-split-panel h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--global-text-primary);
  margin: 0 0 16px;
}

.global-split-panel > p {
  font-size: 15px;
  color: var(--global-text-secondary);
  line-height: 1.75;
  margin: 0 0 24px;
}

.global-split-meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 20px;
  border-top: 1px solid var(--global-border-light);
}

.global-split-meta span {
  font-size: 14px;
  color: var(--global-text-secondary);
}

.global-split-meta strong {
  color: var(--region-eu);
  font-weight: 600;
}

/* ==================== Section 3: 亚太 — 地图式双列 ==================== */
.global-region-map {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 24px;
  margin: 40px 0;
  align-items: stretch;
}

.global-region-col {
  display: contents;
}

.global-region-card {
  position: relative;
  padding: 32px 28px;
  border-radius: var(--global-radius);
  background: rgba(255,255,255,0.95);
  border: 1px solid var(--global-border);
  box-shadow: var(--global-shadow);
  transition: transform .25s ease, box-shadow .25s ease;
  overflow: hidden;
}

.global-region-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--global-shadow-lg);
}

.global-region-card .global-region-flag {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--region-ap-grad-start), var(--region-ap-grad-end));
  box-shadow: 0 4px 12px rgba(5,150,105,0.3);
}

.global-region-card.other .global-region-flag {
  background: linear-gradient(135deg, var(--region-ot-grad-start), var(--region-ot-grad-end));
  box-shadow: 0 4px 12px rgba(217,119,6,0.3);
}

.global-region-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--global-text-primary);
  margin: 0 0 10px;
  padding-right: 60px;
}

.global-region-card p {
  font-size: 14px;
  color: var(--global-text-secondary);
  line-height: 1.7;
  margin: 0;
}

.global-region-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--region-ap-grad-start), var(--region-ap-grad-end));
  border-radius: 0 0 var(--global-radius) var(--global-radius);
}

.global-region-card.other .global-region-bar {
  background: linear-gradient(90deg, var(--region-ot-grad-start), var(--region-ot-grad-end));
}

/* ==================== Section 5: 策略 — 三列对比 ==================== */
.global-strategy-compare {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 40px 0;
}

.global-strategy-card {
  border-radius: var(--global-radius);
  background: var(--global-bg-dark-card);
  border: 1px solid var(--global-border-dark);
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
}

.global-strategy-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0,0,0,0.3);
}

.global-strategy-header {
  padding: 28px 24px 20px;
  position: relative;
}

.global-strategy-num {
  display: block;
  font-size: 36px;
  font-weight: 800;
  color: rgba(255,255,255,0.08);
  line-height: 1;
  margin-bottom: 8px;
}

.global-strategy-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--global-white);
  margin: 0;
}

.global-strategy-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--region-na), var(--region-na-grad-end));
  color: #fff;
}

.global-strategy-body {
  padding: 0 24px 20px;
}

.global-strategy-body p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  margin: 0 0 16px;
}

.global-strategy-body ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.global-strategy-body li {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  padding: 6px 0 6px 18px;
  position: relative;
}

.global-strategy-body li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--global-primary);
}

.global-strategy-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--global-border-dark);
}

.global-strategy-footer span {
  font-size: 12px;
  color: rgba(255,255,255,0.45);
}

/* ==================== Section 6: 技巧 — 3x3 图标网格 ==================== */
.global-tip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 40px 0;
}

.global-tip-card {
  padding: 28px 24px;
  border-radius: var(--global-radius);
  background: var(--global-bg-card);
  border: 1px solid var(--global-border);
  text-align: center;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

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

.global-tip-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--global-primary-light), #dbeafe);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 22px;
  color: var(--global-primary);
}

.global-tip-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--global-text-primary);
  margin: 0 0 8px;
}

.global-tip-card p {
  font-size: 13px;
  color: var(--global-text-secondary);
  line-height: 1.65;
  margin: 0;
}

/* ==================== Section 7: 法规动态 — 时间线 ==================== */
.global-timeline {
  position: relative;
  margin: 40px 0;
  padding-left: 40px;
}

.global-timeline-track {
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--region-na), var(--region-eu), var(--region-ap), var(--region-ot));
  border-radius: 2px;
}

.global-timeline-item {
  position: relative;
  padding: 0 0 32px 32px;
}

.global-timeline-item:last-child {
  padding-bottom: 0;
}

.global-timeline-dot {
  position: absolute;
  left: -34px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 3px solid var(--global-bg-dark);
  box-shadow: 0 0 0 3px currentColor;
}

.global-timeline-dot.na { background: var(--region-na); color: var(--region-na); }
.global-timeline-dot.eu { background: var(--region-eu); color: var(--region-eu); }
.global-timeline-dot.uk { background: #6366f1; color: #6366f1; }
.global-timeline-dot.jp { background: #ec4899; color: #ec4899; }
.global-timeline-dot.cn { background: #f59e0b; color: #f59e0b; }
.global-timeline-dot.global { background: #10b981; color: #10b981; }

.global-timeline-card {
  border-radius: var(--global-radius);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--global-border-dark);
  padding: 24px 28px;
  backdrop-filter: blur(4px);
  transition: transform .2s ease, background .2s ease;
}

.global-timeline-card:hover {
  transform: translateX(4px);
  background: rgba(255,255,255,0.1);
}

.global-timeline-region {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  margin-bottom: 8px;
  letter-spacing: .05em;
}

.global-timeline-card h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--global-white);
  margin: 0 0 10px;
}

.global-timeline-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  margin: 0;
}

/* ==================== 响应式 ==================== */
@media (max-width: 992px) {
  .global-domain-grid-3col {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .global-process {
    flex-wrap: wrap;
    justify-content: center;
    gap: 28px 16px;
  }

  .global-process::before {
    display: none;
  }

  .global-process-step {
    max-width: 140px;
  }

  /* Section 1: tabs */
  .global-tab-content {
    flex-direction: column;
    gap: 24px;
  }
  .global-tab-badge {
    width: 80px;
    height: 80px;
    font-size: 24px;
  }

  /* Section 2: split */
  .global-split {
    flex-direction: column;
    min-height: auto;
  }
  .global-split-list {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .global-split-item {
    flex: 1;
    min-width: 140px;
  }
  .global-split-item.active::before {
    display: none;
  }

  /* Section 3: region map */
  .global-region-map {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  /* Section 5: strategy */
  .global-strategy-compare {
    grid-template-columns: 1fr;
  }

  /* Section 6: tips */
  .global-tip-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Section 7: timeline */
  .global-timeline {
    padding-left: 32px;
  }
}

@media (max-width: 640px) {
  .global-domain-grid,
  .global-domain-grid-3col,
  .global-cert-grid,
  .global-card-grid,
  .global-capability-list {
    grid-template-columns: 1fr;
  }

  .global-process {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    align-items: center;
    gap: 24px;
  }

  .global-process-step {
    max-width: 100%;
    width: 100%;
    flex-direction: row;
    text-align: left;
    gap: 16px;
  }

  .global-process-step::before {
    margin-bottom: 0;
  }

  /* Section 1: tabs mobile */
  .global-tab-nav {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    flex-direction: column;
  }
  .global-tab-btn {
    text-align: left;
    border-bottom: none;
    border-left: 3px solid transparent;
  }
  .global-tab-btn.active {
    border-bottom-color: transparent;
    border-left-color: var(--region-na);
  }
  .global-tab-panels {
    padding: 24px;
  }

  /* Section 2: split mobile */
.global-split-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    flex-direction: column;
  }
  .global-split-item {
    min-width: auto;
  }
  .global-split-detail {
    padding: 24px;
  }

  /* Section 6: tips mobile */
  .global-tip-grid {
    grid-template-columns: 1fr;
  }

  /* Section 7: timeline mobile */
  .global-timeline {
    padding-left: 0;
  }
  .global-timeline-track {
    display: none;
  }
  .global-timeline-item {
    padding-left: 0;
  }
  .global-timeline-dot {
    display: none;
  }
  .global-timeline-card {
    padding: 18px 20px;
    margin: 0 auto;
  }
}