/* ============================================
   页面专属样式 - 首页/各栏目
   ============================================ */

/* ===== Hero 区 ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  padding-bottom: var(--space-3xl);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 12s ease-in-out infinite;
}

.hero-orb-1 {
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.5) 0%, transparent 70%);
  top: -120px; right: -120px;
  animation-delay: 0s;
}

.hero-orb-2 {
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.4) 0%, transparent 70%);
  bottom: -80px; left: -80px;
  animation-delay: -4s;
}

.hero-orb-3 {
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.35) 0%, transparent 70%);
  top: 40%; left: 50%;
  animation-delay: -8s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.1); }
  66% { transform: translate(-20px, 30px) scale(0.9); }
}

.hero-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  backdrop-filter: blur(12px);
}

.hero-badge-dot {
  width: 6px; height: 6px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 12px #10b981;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: var(--space-lg);
}

.hero-title .highlight {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  position: relative;
}

.hero-desc {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  max-width: 540px;
}

.hero-stat-value {
  font-size: clamp(1.5rem, 2vw, 2rem);
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.hero-stat-label {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  margin-top: 0.25rem;
}

/* Hero 右侧可视化 */
.hero-visual {
  position: relative;
  height: 480px;
}

.hero-card {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  padding: 1.25rem;
  backdrop-filter: blur(20px) saturate(180%);
  box-shadow: var(--shadow-lg);
  animation: float-card 6s ease-in-out infinite;
}

.hero-card-1 {
  top: 5%;
  right: 0;
  width: 280px;
  animation-delay: 0s;
}

.hero-card-2 {
  top: 35%;
  left: 0;
  width: 260px;
  animation-delay: -2s;
}

.hero-card-3 {
  bottom: 5%;
  right: 10%;
  width: 290px;
  animation-delay: -4s;
}

@keyframes float-card {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.hero-card-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
}

.hero-card-title {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.hero-card-meta {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

.hero-card-content {
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  line-height: 1.5;
}

.hero-card-tag {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  background: rgba(16, 185, 129, 0.16);
  color: #10b981;
  border-radius: var(--r-full);
  font-size: 0.625rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

.hero-card-tag.purple {
  background: rgba(139, 92, 246, 0.16);
  color: #c4b5fd;
}

.hero-card-tag.cyan {
  background: rgba(6, 182, 212, 0.16);
  color: #67e8f9;
}

/* AI 搜索框装饰 */
.hero-search-fake {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 320px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  padding: 1rem;
  box-shadow: var(--shadow-lg);
  z-index: 2;
}

.hero-search-fake-input {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 0.875rem;
  background: var(--bg-glass);
  border-radius: var(--r-md);
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  margin-bottom: 0.75rem;
}

.hero-search-fake-answer {
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  line-height: 1.5;
  padding: 0.5rem;
  background: rgba(99, 102, 241, 0.08);
  border-radius: var(--r-sm);
  border-left: 2px solid var(--brand-primary);
}

.hero-search-fake-source {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.625rem;
  color: var(--brand-primary);
  font-weight: 600;
}

@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-visual { height: 380px; margin-top: var(--space-xl); }
  .hero-card-1, .hero-card-2, .hero-card-3 { width: 220px; }
}

@media (max-width: 640px) {
  .hero-visual { display: none; }
}

/* ===== 服务/特性卡片 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  backdrop-filter: blur(20px);
  transition: all 0.4s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
}

.feature-card:hover::before { transform: scaleX(1); }

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
}

.feature-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.feature-desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 900px) {
  .features-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
}

/* ===== 数据指标 ===== */
.stats-section {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border-subtle);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.stat-card {
  text-align: center;
  padding: var(--space-lg);
  border-right: 1px solid var(--border-subtle);
}

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

.stat-value {
  font-size: clamp(2rem, 3vw, 3rem);
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.stat-value-suffix {
  font-size: 0.6em;
  font-weight: 600;
  color: var(--brand-tertiary);
}

.stat-label {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
  .stat-card { border-right: none; border-bottom: 1px solid var(--border-subtle); padding: var(--space-md); }
}

/* ===== 流程步骤 ===== */
.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  position: relative;
}

.process-list::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

.process-step {
  text-align: center;
  position: relative;
}

.process-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  font-weight: 700;
  font-size: var(--fs-md);
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
  background-image: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.process-step:nth-child(odd) .process-num {
  background: var(--bg-elevated);
  color: var(--brand-primary);
}

.process-num::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: var(--gradient-primary);
  z-index: -1;
  opacity: 0.3;
  filter: blur(10px);
}

.process-title {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.process-desc {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .process-list { grid-template-columns: 1fr 1fr; }
  .process-list::before { display: none; }
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 880px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: all 0.3s var(--ease-out);
}

.faq-item:hover {
  border-color: var(--border-strong);
}

.faq-item[open] {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.2), var(--shadow-md);
}

.faq-question {
  list-style: none;
  cursor: pointer;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 600;
  font-size: var(--fs-md);
  user-select: none;
}

.faq-question::-webkit-details-marker { display: none; }

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s var(--ease-out);
  font-size: 1rem;
  font-weight: 300;
  color: var(--brand-primary);
}

.faq-item[open] .faq-icon { transform: rotate(45deg); }

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: var(--fs-base);
}

.faq-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: var(--space-xl);
}

.faq-category {
  padding: 0.5rem 1rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-full);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
}

.faq-category:hover, .faq-category.active {
  background: var(--brand-primary);
  color: #fff;
  border-color: var(--brand-primary);
}

/* ===== 案例展示 ===== */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  overflow: hidden;
  backdrop-filter: blur(20px);
  transition: all 0.4s var(--ease-out);
}

.case-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
}

.case-thumb {
  height: 200px;
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 24px 24px;
}

.case-thumb-content {
  position: relative;
  z-index: 1;
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  text-align: center;
}

.case-thumb-content small {
  display: block;
  font-size: 0.875rem;
  font-weight: 400;
  opacity: 0.85;
  margin-top: 0.5rem;
  letter-spacing: 0.05em;
}

.case-body { padding: var(--space-lg); }

.case-tag {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.case-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.case-desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.case-metrics {
  display: flex;
  gap: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
}

.case-metric {
  flex: 1;
}

.case-metric-value {
  font-size: var(--fs-lg);
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.case-metric-label {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

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

/* ===== 反馈/评价 ===== */
.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--space-xl);
  backdrop-filter: blur(20px);
  position: relative;
  transition: all 0.3s var(--ease-out);
}

.review-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
}

.review-quote {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  font-size: 4rem;
  font-family: serif;
  color: var(--brand-primary);
  opacity: 0.16;
  line-height: 1;
}

.review-stars {
  display: flex;
  gap: 0.125rem;
  margin-bottom: var(--space-md);
  color: var(--brand-accent);
  font-size: 0.875rem;
}

.review-content {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: var(--fs-sm);
}

.review-info {
  display: flex;
  flex-direction: column;
}

.review-name {
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--text-primary);
}

.review-role {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

@media (max-width: 900px) {
  .review-grid { grid-template-columns: 1fr; }
}

/* ===== 模板展示 ===== */
.template-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.template-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  overflow: hidden;
  backdrop-filter: blur(20px);
  transition: all 0.4s var(--ease-out);
  position: relative;
}

.template-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
}

.template-preview {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4338ca 100%);
  position: relative;
  overflow: hidden;
}

.template-preview.style-1 {
  background: linear-gradient(135deg, #0c4a6e 0%, #0369a1 50%, #0ea5e9 100%);
}

.template-preview.style-2 {
  background: linear-gradient(135deg, #4c1d95 0%, #7c3aed 50%, #a855f7 100%);
}

.template-preview.style-3 {
  background: linear-gradient(135deg, #064e3b 0%, #047857 50%, #10b981 100%);
}

.template-preview.style-4 {
  background: linear-gradient(135deg, #7c2d12 0%, #c2410c 50%, #f97316 100%);
}

.template-preview.style-5 {
  background: linear-gradient(135deg, #831843 0%, #be185d 50%, #ec4899 100%);
}

.template-preview-mock {
  position: absolute;
  inset: 12% 8%;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 4px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.template-preview-bar {
  height: 6px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

.template-preview-bar:nth-child(1) { width: 60%; background: rgba(99, 102, 241, 0.3); }
.template-preview-bar:nth-child(2) { width: 80%; }
.template-preview-bar:nth-child(3) { width: 50%; }
.template-preview-bar:nth-child(4) { width: 90%; height: 12px; background: rgba(99, 102, 241, 0.1); }
.template-preview-bar:nth-child(5) { width: 70%; height: 12px; background: rgba(99, 102, 241, 0.1); }

.template-body { padding: var(--space-lg); }

.template-title {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.template-desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.5;
}

.template-tags {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
}

.template-tag {
  padding: 0.125rem 0.5rem;
  background: var(--bg-glass);
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

.template-tag.featured {
  background: rgba(99, 102, 241, 0.16);
  color: var(--brand-primary);
}

@media (max-width: 900px) {
  .template-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .template-grid { grid-template-columns: 1fr; }
}

/* ===== 内容/文章 ===== */
.article-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-2xl);
}

.article-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.article-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  overflow: hidden;
  backdrop-filter: blur(20px);
  transition: all 0.3s var(--ease-out);
}

.article-card:hover {
  border-color: var(--border-strong);
  transform: translateX(4px);
}

/* 卡片内包 <a> 链接时，让链接层不参与网格布局，保持与普通卡片一致的两列结构 */
.article-card > a {
  display: contents;
}

.article-thumb {
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
}

.article-thumb.style-1 { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.article-thumb.style-2 { background: linear-gradient(135deg, #06b6d4, #3b82f6); }
.article-thumb.style-3 { background: linear-gradient(135deg, #ec4899, #8b5cf6); }
.article-thumb.style-4 { background: linear-gradient(135deg, #f59e0b, #ef4444); }

.article-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255,255,255,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 20px 20px;
}

.article-thumb-content {
  position: relative;
  z-index: 1;
  font-size: 2.5rem;
  color: rgba(255, 255, 255, 0.4);
}

.article-body {
  padding: var(--space-lg) var(--space-lg) var(--space-lg) 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.article-meta {
  display: flex;
  gap: 0.75rem;
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  margin-bottom: 0.5rem;
}

.article-meta span {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.article-meta .article-cat {
  color: var(--brand-primary);
  font-weight: 600;
}

.article-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.article-card:hover .article-title { color: var(--brand-primary); }

.article-excerpt {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

/* 侧边栏 */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  backdrop-filter: blur(20px);
}

.sidebar-title {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: var(--space-md);
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.sidebar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.sidebar-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  padding: 0.5rem 0.75rem;
  border-radius: var(--r-sm);
  transition: all 0.2s var(--ease-out);
}

.sidebar-list a:hover {
  background: var(--bg-glass);
  color: var(--text-primary);
  transform: translateX(4px);
}

.sidebar-list .num {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  font-weight: 700;
  background: var(--bg-glass);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-cloud a {
  padding: 0.375rem 0.75rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  transition: all 0.2s var(--ease-out);
}

.tag-cloud a:hover {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-card { grid-template-columns: 1fr; }
  .article-body { padding: var(--space-lg); }
  .article-thumb { min-height: 160px; }
}

/* ===== 联系 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.contact-info {
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  backdrop-filter: blur(20px);
}

.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--r-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--brand-primary);
}

.contact-item-content h5 {
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.contact-item-content p, .contact-item-content a {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.5;
}

.contact-item-content a:hover { color: var(--brand-primary); }

.contact-form {
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  backdrop-filter: blur(20px);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--fs-sm);
  transition: all 0.2s var(--ease-out);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--brand-primary);
  background: rgba(99, 102, 241, 0.04);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

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

/* ===== CTA 区 ===== */
.cta-section {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(139, 92, 246, 0.08));
  border-block: 1px solid var(--border-subtle);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 50%, rgba(99, 102, 241, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 70% 50%, rgba(6, 182, 212, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(1.875rem, 3.5vw, 2.75rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.cta-desc {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

/* ===== 地图占位 ===== */
.map-placeholder {
  height: 320px;
  border-radius: var(--r-lg);
  background:
    linear-gradient(rgba(99, 102, 241, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.04) 1px, transparent 1px),
    radial-gradient(ellipse at center, rgba(99, 102, 241, 0.12) 0%, transparent 60%),
    linear-gradient(135deg, #0d1126 0%, #1a1f3a 100%);
  background-size: 32px 32px, 32px 32px, 100% 100%, 100% 100%;
  border: 1px solid var(--border-subtle);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.map-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.25) 0%, transparent 40%);
  pointer-events: none;
}

.location-pin {
  position: relative;
  z-index: 1;
  text-align: center;
  animation: pin-bounce 2s ease-in-out infinite;
}

.location-pin svg {
  width: 48px;
  height: 48px;
  margin: 0 auto 0.5rem;
  filter: drop-shadow(0 4px 12px rgba(99, 102, 241, 0.5));
}

.location-pin-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 2rem;
  margin: 0 auto 0.75rem;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

@keyframes pin-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.map-label {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-full);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 0.5rem;
}

/* 4 列特性（联系页） */
.features-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

@media (max-width: 900px) {
  .features-grid-4 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .features-grid-4 { grid-template-columns: 1fr; }
}

/* ===== 时间线（优势页） ===== */
.timeline {
  position: relative;
  padding-left: var(--space-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--brand-primary), var(--brand-secondary), var(--brand-tertiary));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-xl) + 6px);
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-base);
  border: 2px solid var(--brand-primary);
  box-shadow: 0 0 12px var(--brand-primary);
}

.timeline-year {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--brand-primary);
  margin-bottom: 0.5rem;
}

.timeline-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.timeline-desc {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== 对比表 ===== */
.compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  overflow: hidden;
  backdrop-filter: blur(20px);
}

.compare-table th,
.compare-table td {
  padding: 1.25rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
  font-size: var(--fs-sm);
}

.compare-table th {
  background: var(--bg-glass);
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--fs-sm);
  letter-spacing: 0.02em;
}

.compare-table tr:last-child td { border-bottom: none; }

.compare-table tr:hover td { background: var(--bg-glass); }

.compare-check {
  color: #10b981;
  font-weight: 700;
}

.compare-cross {
  color: rgba(239, 68, 68, 0.5);
}

@media (max-width: 768px) {
  .compare-table { font-size: var(--fs-xs); }
  .compare-table th, .compare-table td { padding: 0.75rem; }
}

/* ===== 团队/联系区块 ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.team-card {
  text-align: center;
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  backdrop-filter: blur(20px);
}

.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.5rem;
  margin: 0 auto var(--space-md);
}

.team-name {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.team-role {
  font-size: var(--fs-sm);
  color: var(--brand-primary);
  margin-bottom: var(--space-md);
}

.team-desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

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

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--space-lg);
  padding-top: 100px;
}

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

.breadcrumb-sep { color: var(--text-muted); }

/* ===== Page Hero (内页) ===== */
.page-hero {
  padding-top: 100px;
  padding-bottom: var(--space-2xl);
  text-align: center;
  position: relative;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: var(--gradient-glow);
  opacity: 0.4;
  filter: blur(80px);
  pointer-events: none;
}

.page-hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.page-hero-title {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.page-hero-desc {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}