/* ==========================================================================
   WgetCloud 官方推广落地页 - 柔和淡紫渐变与浅灰壁纸 (Gradient Light Purple & Light Grey Wallpaper)
   设计理念：无霓虹高饱和度色彩，浅灰壁纸底色，淡雅紫色渐变，高端商务与极致阅读体验
   ========================================================================== */

/* 1. 全局变量与 CSS Reset */
:root {
  --bg-primary: #f3f4f6;       /* 浅灰壁纸背景 (Light Grey Wallpaper) */
  --bg-secondary: #e5e7eb;     /* 次级浅灰 */
  --bg-card: #ffffff;          /* 纯白卡片 */
  --bg-card-hover: #fafafa;
  --border-color: #e2e8f0;     /* 柔和灰边框 */
  --border-highlight: #c084fc; /* 淡紫高亮边框 */
  
  --text-main: #0f172a;        /* 高对比度深色文本 */
  --text-muted: #475569;       /* 优雅灰次级文本 */
  --text-dim: #64748b;         /* 辅助说明文本 */
  
  --accent-purple: #a855f7;
  --accent-purple-light: #c084fc;
  --accent-purple-dark: #7e22ce;
  --accent-gradient: linear-gradient(135deg, #a855f7 0%, #7e22ce 100%); /* 优雅淡紫渐变 (Gradient Light Purple) */
  --accent-gradient-hover: linear-gradient(135deg, #9333ea 0%, #6b21a8 100%);
  --accent-glow: 0 6px 20px rgba(168, 85, 247, 0.2);

  --font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --container-width: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-family: var(--font-base);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  background-color: var(--bg-primary);
}

/* 浅灰壁纸淡紫微光渐变效果 */
body::before {
  content: "";
  position: fixed;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 550px;
  background: radial-gradient(ellipse at center, rgba(192, 132, 252, 0.15) 0%, rgba(216, 180, 254, 0.05) 50%, rgba(243, 244, 246, 0) 75%);
  pointer-events: none;
  z-index: 0;
}

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

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  position: relative;
  z-index: 1;
}

/* 2. 通用按钮与 Badge */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(168, 85, 247, 0.3);
}

.btn-primary:hover {
  background: var(--accent-gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(168, 85, 247, 0.45);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.04);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  transform: translateY(-2px);
}

.btn-large {
  padding: 0.875rem 2rem;
  font-size: 1.025rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  background: rgba(168, 85, 247, 0.08);
  border: 1px solid rgba(168, 85, 247, 0.2);
  color: var(--accent-purple-dark);
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-purple);
  box-shadow: 0 0 8px var(--accent-purple-light);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { opacity: 0.6; transform: scale(0.95); }
  50% { opacity: 1; transform: scale(1.25); }
  100% { opacity: 0.6; transform: scale(0.95); }
}

/* 3. 头部导航 (Header & Nav) */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(243, 244, 246, 0.88);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.nav-menu {
  display: none;
}

@media (min-width: 860px) {
  .nav-menu {
    display: flex;
    align-items: center;
    gap: 1.75rem;
  }
  .nav-link {
    color: var(--text-muted);
    font-size: 0.925rem;
    font-weight: 600;
    transition: color var(--transition-fast);
  }
  .nav-link:hover {
    color: var(--accent-purple-dark);
  }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* 4. 主视觉区 (Hero Section) - 左右分布与动态淡紫图卡 */
.hero {
  padding: 3rem 0 4rem;
}

@media (min-width: 992px) {
  .hero {
    padding: 5rem 0 6rem;
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
  }
}

.hero-content {
  text-align: center;
}

@media (min-width: 992px) {
  .hero-content {
    text-align: left;
  }
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: var(--text-main);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.25rem;
  }
}

.text-gradient {
  background: linear-gradient(135deg, #7e22ce 0%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

@media (min-width: 992px) {
  .hero-subtitle {
    max-width: 580px;
    font-size: 1.15rem;
  }
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  margin-bottom: 2.5rem;
}

@media (min-width: 480px) {
  .hero-cta {
    flex-direction: row;
  }
}

@media (min-width: 992px) {
  .hero-cta {
    justify-content: flex-start;
  }
}

.hero-stats-mini {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.stat-mini-item {
  text-align: center;
}

@media (min-width: 992px) {
  .stat-mini-item {
    text-align: left;
  }
}

.stat-mini-num {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
}

.stat-mini-label {
  font-size: 0.775rem;
  color: var(--text-muted);
}

/* 右侧商务淡紫动态图卡面板 */
.hero-visual-panel {
  position: relative;
  width: 100%;
}

.visual-card {
  background: var(--bg-card);
  border: 1px solid #e9d5ff;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: 0 10px 30px rgba(168, 85, 247, 0.08), 0 2px 10px rgba(0, 0, 0, 0.03);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
  overflow: hidden;
}

/* 顶部状态头栏 */
.card-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.775rem;
  color: var(--accent-purple-dark);
  background: rgba(168, 85, 247, 0.1);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-weight: 600;
}

/* 动态传输波形动画 */
.visual-wave-box {
  height: 90px;
  background: #f8fafc;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.wave-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  z-index: 2;
  font-weight: 500;
}

.wave-speed {
  font-weight: 700;
  color: var(--accent-purple-dark);
}

.wave-bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 45px;
  z-index: 2;
}

.wave-bar {
  flex: 1;
  background: var(--accent-gradient);
  border-radius: 2px;
  animation: wave-anim 1.8s infinite ease-in-out alternate;
}

.wave-bar:nth-child(1) { height: 40%; animation-delay: 0.1s; }
.wave-bar:nth-child(2) { height: 65%; animation-delay: 0.3s; }
.wave-bar:nth-child(3) { height: 85%; animation-delay: 0.2s; }
.wave-bar:nth-child(4) { height: 50%; animation-delay: 0.5s; }
.wave-bar:nth-child(5) { height: 95%; animation-delay: 0.15s; }
.wave-bar:nth-child(6) { height: 75%; animation-delay: 0.4s; }
.wave-bar:nth-child(7) { height: 60%; animation-delay: 0.25s; }
.wave-bar:nth-child(8) { height: 90%; animation-delay: 0.35s; }
.wave-bar:nth-child(9) { height: 70%; animation-delay: 0.05s; }
.wave-bar:nth-child(10) { height: 80%; animation-delay: 0.45s; }
.wave-bar:nth-child(11) { height: 55%; animation-delay: 0.2s; }
.wave-bar:nth-child(12) { height: 100%; animation-delay: 0.3s; }

@keyframes wave-anim {
  0% { transform: scaleY(0.3); opacity: 0.6; }
  100% { transform: scaleY(1); opacity: 1; }
}

/* 动态节点列表 */
.nodes-status-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.node-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f8fafc;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
  border: 1px solid var(--border-color);
}

.node-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--text-main);
}

.node-flag {
  font-size: 0.95rem;
}

.node-ping {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 700;
  font-size: 0.775rem;
  color: var(--accent-purple-dark);
}

.ping-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-purple);
}

/* 5. 章节通用样式 */
.section {
  padding: 4rem 0;
  border-top: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3rem;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.85rem;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
}

/* 6. 产品核心优势 (3个图文卡片) */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: #d8b4fe;
  box-shadow: 0 12px 25px rgba(168, 85, 247, 0.12);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(168, 85, 247, 0.1);
  color: var(--accent-purple-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-main);
}

.feature-text {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 7. 流媒体与 AI 支持图卡 */
.unlock-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .unlock-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.unlock-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.unlock-category {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text-main);
}

.unlock-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.unlock-tag {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.unlock-tag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dot-netflix { background-color: #e50914; }
.dot-disney { background-color: #113ccf; }
.dot-youtube { background-color: #ff0000; }
.dot-hbo { background-color: #9933ff; }
.dot-openai { background-color: #10a37f; }
.dot-claude { background-color: #d97706; }
.dot-midjourney { background-color: #a855f7; }
.dot-gemini { background-color: #7e22ce; }

/* 8. 真实价格对比表 */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

@media (min-width: 992px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.price-card.popular {
  border-color: var(--accent-purple);
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(168, 85, 247, 0.15);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-gradient);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.price-header {
  text-align: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--text-main);
}

.plan-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.price-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
  margin: 1rem 0 0.5rem;
}

.currency {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-muted);
}

.number {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.03em;
}

.period {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.price-subtext {
  font-size: 0.775rem;
  color: var(--accent-purple-dark);
  font-weight: 600;
}

.price-features {
  margin-bottom: 2rem;
  flex-grow: 1;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-main);
  margin-bottom: 0.85rem;
}

.check-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(168, 85, 247, 0.15);
  color: var(--accent-purple-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  font-weight: 700;
}

/* 9. SEO 文章资讯板块 (Blog / Articles) */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: #d8b4fe;
  box-shadow: 0 10px 25px rgba(168, 85, 247, 0.1);
}

.blog-category-tag {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-purple-dark);
  background: rgba(168, 85, 247, 0.1);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.blog-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.blog-card-title a {
  transition: color var(--transition-fast);
}

.blog-card-title a:hover {
  color: var(--accent-purple);
}

.blog-card-excerpt {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.blog-read-more {
  color: var(--accent-purple-dark);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap var(--transition-fast);
}

.blog-card:hover .blog-read-more {
  gap: 0.5rem;
}

/* 10. 用户评价 */
.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .reviews-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.review-stars {
  color: #f59e0b;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

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

.avatar-placeholder {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #ffffff;
  font-size: 0.9rem;
}

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

.user-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
}

.user-role {
  font-size: 0.775rem;
  color: var(--text-dim);
}

/* 11. FAQ 手风琴 */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.faq-item summary {
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  color: var(--text-main);
}

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

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--text-muted);
}

.faq-item[open] summary::after {
  content: "−";
  color: var(--accent-purple-dark);
}

.faq-content {
  padding: 0 1.5rem 1.25rem;
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.6;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

/* 12. 页脚 (Footer) - 浅灰壁纸底色与高亮友链 */
.footer {
  background: #e5e7eb;
  border-top: 1px solid #d1d5db;
  padding: 3rem 0 2.5rem;
  margin-top: auto;
  color: var(--text-muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 2rem 3rem;
  margin-bottom: 2rem;
}

.footer-link {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  transition: color var(--transition-fast);
  padding: 0.5rem 0;
}

.footer-link:hover {
  color: var(--accent-purple-dark);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #cbd5e1;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer-friends-links a {
  color: var(--accent-purple-dark) !important;
}

/* 13. 独立文章详情页专属样式 */
.article-container {
  max-width: 860px;
  margin: 0 auto;
}

.article-header {
  padding: 4rem 0 2.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.5);
}

.article-meta-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 1rem;
}

.article-body {
  padding: 3.5rem 0 5rem;
}

.article-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  line-height: 1.8;
  font-size: 1rem;
  color: #334155;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
}

.article-content h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.article-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 2.25rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.article-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-purple-dark);
  margin: 1.5rem 0 0.75rem;
}

.article-content p {
  margin-bottom: 1.25rem;
}

.article-content ul, .article-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content strong {
  color: var(--text-main);
}

.article-content a {
  color: var(--accent-purple-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

.article-content a:hover {
  color: var(--accent-purple);
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.08) 0%, rgba(192, 132, 252, 0.12) 100%);
  border: 1px solid #e9d5ff;
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  margin: 2.5rem 0;
}

.article-cta-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.article-cta-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}