/* ============================================
   AI 哨所 · Raycast 风格设计系统 v2.0
   核心领域：AI 工具测评 / Prompt 提示词 / AI 效率工作流 / AIGC 商业应用
   增强版：专业图标 + 精致光效 + 深度视觉层次
   ============================================ */

/* === 字体引入 === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
@import url('https://unpkg.com/@phosphor-icons/web@2.1.1/src/regular/style.css');

/* === CSS 变量系统 === */
:root {
  /* 背景层次 */
  --bg-void: #07080a;
  --bg-surface: #0d0f12;
  --bg-card: #101316;
  --bg-card-hover: #14171c;
  --bg-elevated: #1a1d24;
  --bg-input: #0a0c0e;

  /* 主色调 */
  --primary: #00d9ff;
  --primary-dim: rgba(0, 217, 255, 0.12);
  --primary-glow: rgba(0, 217, 255, 0.25);
  --primary-deep: #0099cc;

  /* 品牌紫（AI 主题）*/
  --brand-purple: #a78bfa;
  --brand-purple-dim: rgba(167, 139, 250, 0.12);
  --brand-purple-glow: rgba(167, 139, 250, 0.25);

  /* 警示红 */
  --accent-red: #ff6363;
  --accent-red-dim: rgba(255, 99, 99, 0.12);

  /* 成功绿 */
  --accent-green: #5fc992;
  --accent-green-dim: rgba(95, 201, 146, 0.12);

  /* 渐变配色 */
  --gradient-primary: linear-gradient(135deg, #00d9ff, #00a8cc);
  --gradient-brand: linear-gradient(135deg, #a78bfa, #8b5cf6);
  --gradient-mixed: linear-gradient(135deg, #00d9ff, #a78bfa);
  --gradient-fire: linear-gradient(135deg, #ff6b35, #ff8c42);
  --gradient-sunset: linear-gradient(135deg, #ff6363, #a78bfa);

  /* 文字层次 */
  --text-primary: #f0f0f5;
  --text-secondary: #c4c4d4;
  --text-tertiary: #7a7a8c;
  --text-muted: #4a4a5a;

  /* 边框 */
  --border: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.14);
  --border-accent: rgba(0, 217, 255, 0.3);

  /* 字体 */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;

  /* 间距 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* 圆角 */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-pill: 9999px;

  /* 阴影 */
  --shadow-card: 0 0 0 1px var(--border), 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-card-hover: 0 0 0 1px var(--border-hover), 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow-cyan: 0 0 30px rgba(0, 217, 255, 0.2), 0 0 60px rgba(0, 217, 255, 0.1);
  --shadow-glow-purple: 0 0 30px rgba(167, 139, 250, 0.2);
  --shadow-icon-glow: 0 0 20px rgba(0, 217, 255, 0.3);
  --shadow-icon-hover: 0 0 30px rgba(0, 217, 255, 0.4);

  /* 过渡 */
  --transition-fast: 150ms ease;
  --transition: 250ms ease;
  --transition-slow: 400ms ease;

  /* 容器宽度 */
  --container: 1200px;
  --container-narrow: 860px;
}

/* === 基础重置 === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-void);
  color: var(--text-primary);
  line-height: 1.6;
  letter-spacing: 0.01em;
  min-height: 100vh;
}

/* === 滚动条美化 === */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: var(--radius-pill); }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* === 容器 === */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* === 网格背景效果 === */
.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 217, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 217, 255, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
}

/* === 导航栏 === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(7, 8, 10, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.navbar__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.3px;
  flex-shrink: 0;
}

.navbar__logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-mixed);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--bg-void);
  font-weight: 800;
  box-shadow: var(--shadow-glow-cyan);
  position: relative;
  overflow: hidden;
}

.navbar__logo-icon::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.3), transparent 50%);
  border-radius: inherit;
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.navbar__link {
  padding: var(--space-2) var(--space-3);
  color: var(--text-tertiary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius);
  transition: var(--transition-fast);
  white-space: nowrap;
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.navbar__link.active {
  color: var(--primary);
}

.navbar__cta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 16px;
  background: var(--gradient-mixed);
  color: var(--bg-void);
  border: none;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-fast);
  flex-shrink: 0;
  box-shadow: var(--shadow-glow-cyan);
}

.navbar__cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-icon-hover);
}

.navbar__mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--space-2);
  font-size: 20px;
}

/* === Hero 区域 === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero__glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 700px;
  background: radial-gradient(ellipse, rgba(0, 217, 255, 0.12) 0%, rgba(167, 139, 250, 0.08) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  filter: blur(40px);
}

.hero__glow-secondary {
  position: absolute;
  top: 30%;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(167, 139, 250, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  filter: blur(60px);
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 16px;
  background: var(--primary-dim);
  border: 1px solid rgba(0, 217, 255, 0.25);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease forwards;
  position: relative;
  overflow: hidden;
}

.hero__badge::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(0, 217, 255, 0.1), transparent);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.hero__badge-icon {
  font-size: 14px;
  animation: pulse 2s ease infinite;
}

.hero__title {
  font-size: clamp(42px, 7vw, 80px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero__title .gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--brand-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.hero__subtitle {
  font-size: clamp(16px, 2.5vw, 20px);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto var(--space-10);
  font-weight: 400;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.3s both;
}

.hero__stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-10);
  margin-top: var(--space-16);
  padding-top: var(--space-10);
  border-top: 1px solid var(--border);
  animation: fadeInUp 0.6s ease 0.4s both;
}

.hero__stat {
  text-align: center;
}

.hero__stat-value {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.hero__stat-label {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 4px;
  font-weight: 500;
}

/* === 按钮系统 === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition-fast);
  font-family: var(--font-sans);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--gradient-mixed);
  color: var(--bg-void);
  box-shadow: var(--shadow-glow-cyan);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-icon-hover);
}

.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn--primary:hover::before {
  opacity: 1;
}

.btn--secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn--secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 10px 16px;
}

.btn--ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.btn--icon {
  padding: 10px;
  border-radius: var(--radius);
}

.btn--sm {
  padding: 8px 16px;
  font-size: 13px;
}

.btn--lg {
  padding: 16px 32px;
  font-size: 17px;
}

/* === 图标系统 === */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: inherit;
  line-height: 1;
}

.icon--xs { font-size: 12px; }
.icon--sm { font-size: 16px; }
.icon--md { font-size: 20px; }
.icon--lg { font-size: 24px; }
.icon--xl { font-size: 32px; }
.icon--2xl { font-size: 40px; }
.icon--3xl { font-size: 48px; }

/* 图标容器 - 渐变背景 */
.icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}

.icon-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.05), transparent 50%);
  border-radius: inherit;
}

.icon-box--primary {
  background: var(--primary-dim);
  border: 1px solid rgba(0, 217, 255, 0.2);
}

.icon-box--primary .icon {
  color: var(--primary);
}

.icon-box--purple {
  background: var(--brand-purple-dim);
  border: 1px solid rgba(167, 139, 250, 0.2);
}

.icon-box--purple .icon {
  color: var(--brand-purple);
}

.icon-box--red {
  background: var(--accent-red-dim);
  border: 1px solid rgba(255, 99, 99, 0.2);
}

.icon-box--red .icon {
  color: var(--accent-red);
}

.icon-box--green {
  background: var(--accent-green-dim);
  border: 1px solid rgba(95, 201, 146, 0.2);
}

.icon-box--green .icon {
  color: var(--accent-green);
}

.icon-box--gradient {
  background: var(--gradient-mixed);
  border: none;
  box-shadow: var(--shadow-glow-cyan);
}

.icon-box--gradient .icon {
  color: var(--bg-void);
}

/* 分类标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  transition: var(--transition-fast);
  cursor: pointer;
}

.tag--blue {
  background: var(--primary-dim);
  color: var(--primary);
  border: 1px solid rgba(0, 217, 255, 0.15);
}

.tag--purple {
  background: var(--brand-purple-dim);
  color: var(--brand-purple);
  border: 1px solid rgba(167, 139, 250, 0.15);
}

.tag--red {
  background: var(--accent-red-dim);
  color: var(--accent-red);
  border: 1px solid rgba(255, 99, 99, 0.15);
}

.tag--green {
  background: var(--accent-green-dim);
  color: var(--accent-green);
  border: 1px solid rgba(95, 201, 146, 0.15);
}

.tag--neutral {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.tag--neutral:hover,
.tag--neutral.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.tag--lg {
  padding: 7px 16px;
  font-size: 13px;
}

/* === 文章卡片 === */
.article-card {
  display: block;
  text-decoration: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.article-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.article-card__image {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--bg-elevated), var(--bg-surface));
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-card__image-bg {
  position: absolute;
  inset: 0;
  opacity: 0.8;
  transition: transform 0.5s ease;
}

.article-card:hover .article-card__image-bg {
  transform: scale(1.05);
}

.article-card__image-icon {
  position: relative;
  z-index: 1;
  font-size: 48px;
  opacity: 0.6;
  transition: all 0.3s ease;
}

.article-card:hover .article-card__image-icon {
  transform: scale(1.1);
  opacity: 0.8;
}

.article-card__image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(7, 8, 10, 0.8));
  z-index: 2;
}

.article-card__category {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 3;
}

.article-card__body {
  padding: var(--space-5) var(--space-6);
}

.article-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.article-card__date {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.article-card__reading-time {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.article-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
  transition: color var(--transition-fast);
}

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

.article-card__excerpt {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border);
  margin-top: var(--space-4);
}

.article-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.article-card__author-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gradient-mixed);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: white;
  font-weight: 700;
}

.article-card__views {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* === 文章卡片 - 横向布局 === */
.article-card--horizontal {
  display: flex;
  flex-direction: row;
  align-items: stretch;
}

.article-card--horizontal .article-card__image {
  width: 240px;
  flex-shrink: 0;
  aspect-ratio: auto;
}

.article-card--horizontal .article-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.article-card--horizontal .article-card__title {
  font-size: 20px;
}

.article-card--horizontal .article-card__excerpt {
  -webkit-line-clamp: 3;
}

/* === 文章卡片 - 特色/大卡片 === */
.article-card--featured {
  background: transparent;
  border: none;
}

.article-card--featured .article-card__image {
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  aspect-ratio: 16 / 10;
}

.article-card--featured .article-card__body {
  padding: var(--space-4) 0 0;
}

/* === 网格布局 === */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* === 区块标题 === */
.section {
  padding: var(--space-20) 0;
  position: relative;
}

.section--alt {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
  flex-wrap: wrap;
}

.section__title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.15;
}

.section__subtitle {
  font-size: 16px;
  color: var(--text-tertiary);
  margin-top: var(--space-2);
  line-height: 1.5;
}

.section__action {
  flex-shrink: 0;
}

/* === 分类导航 === */
.category-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.category-nav::-webkit-scrollbar { display: none; }

.category-nav__item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-tertiary);
  text-decoration: none;
  white-space: nowrap;
  transition: var(--transition-fast);
  border: none;
  background: none;
  cursor: pointer;
  font-family: var(--font-sans);
}

.category-nav__item:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.category-nav__item.active {
  color: var(--primary);
  background: var(--primary-dim);
}

/* === 工具卡片 === */
.tool-card {
  display: block;
  text-decoration: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-mixed);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.tool-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover), var(--shadow-glow-cyan);
}

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

.tool-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: var(--space-4);
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

.tool-card:hover .tool-card__icon {
  transform: scale(1.05);
  border-color: rgba(0, 217, 255, 0.3);
  box-shadow: var(--shadow-icon-glow);
}

.tool-card__icon::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent 50%);
}

.tool-card__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}

.tool-card__desc {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.5;
  margin-bottom: var(--space-4);
}

.tool-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.tool-card__rating {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

.tool-card__stars {
  display: flex;
  gap: 2px;
  font-size: 14px;
}

.tool-card__stars .star { color: #fbbf24; }
.tool-card__stars .star-empty { color: var(--text-muted); opacity: 0.3; }

.tool-card__rating-text {
  font-size: 13px;
  color: var(--text-secondary);
  margin-left: var(--space-1);
}

/* === 资源卡片 === */
.resource-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.resource-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-mixed);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.resource-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateX(4px);
}

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

.resource-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: var(--primary-dim);
  border: 1px solid rgba(0, 217, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
  transition: all var(--transition);
}

.resource-card:hover .resource-card__icon {
  transform: scale(1.05);
  box-shadow: var(--shadow-icon-glow);
}

.resource-card__info {
  flex: 1;
  min-width: 0;
}

.resource-card__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.resource-card__meta {
  font-size: 13px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.resource-card__arrow {
  color: var(--text-muted);
  font-size: 18px;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.resource-card:hover .resource-card__arrow {
  color: var(--primary);
  transform: translateX(4px);
}

/* === 关于页面 - 团队卡片 === */
.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.team-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top, var(--primary-dim), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.team-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

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

.team-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-mixed);
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 800;
  color: var(--bg-void);
  position: relative;
  box-shadow: var(--shadow-glow-cyan);
}

.team-card__avatar::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--gradient-mixed);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition);
  filter: blur(10px);
}

.team-card:hover .team-card__avatar::after {
  opacity: 0.5;
}

.team-card__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.team-card__role {
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: var(--space-3);
}

.team-card__bio {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.5;
}

/* === 统计数字墙 === */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

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

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
}

.stat-card__glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top, var(--primary-dim), transparent 70%);
  pointer-events: none;
}

.stat-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-3);
  font-size: 24px;
}

.stat-card__value {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  position: relative;
}

.stat-card__value .accent { color: var(--primary); }

.stat-card__label {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: var(--space-1);
  font-weight: 500;
}

/* === 时间线 === */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--primary), var(--brand-purple), transparent);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-8);
}

.timeline__item:last-child { padding-bottom: 0; }

.timeline__dot {
  position: absolute;
  left: calc(-1 * var(--space-8) + 8px);
  top: 4px;
  width: 14px;
  height: 14px;
  background: var(--bg-void);
  border: 2px solid var(--primary);
  border-radius: 50%;
  z-index: 1;
}

.timeline__year {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-1);
}

.timeline__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.timeline__desc {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.5;
}

/* === 分页 === */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-12);
}

.pagination__btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-tertiary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  font-family: var(--font-sans);
}

.pagination__btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.pagination__btn.active {
  background: var(--gradient-mixed);
  color: var(--bg-void);
  border-color: transparent;
  box-shadow: var(--shadow-glow-cyan);
}

.pagination__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* === 文章详情页布局 === */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-12);
  align-items: start;
  padding-top: 100px;
  padding-bottom: var(--space-20);
}

@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
}

.article-content {
  min-width: 0;
}

.article-sidebar {
  position: sticky;
  top: 84px;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
}

.sidebar-widget__title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.sidebar-toc {
  list-style: none;
}

.sidebar-toc__item {
  margin-bottom: var(--space-2);
}

.sidebar-toc__link {
  display: block;
  padding: 6px 0;
  font-size: 13px;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: var(--transition-fast);
  border-left: 2px solid transparent;
  padding-left: var(--space-3);
  line-height: 1.4;
}

.sidebar-toc__link:hover,
.sidebar-toc__link.active {
  color: var(--primary);
  border-left-color: var(--primary);
}

.sidebar-toc__link--h3 {
  padding-left: calc(var(--space-3) + 12px);
  font-size: 12px;
}

/* === 文章正文样式 === */
.prose {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.prose h1 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  line-height: 1.2;
}

.prose h2 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}

.prose h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.prose p {
  margin-bottom: var(--space-5);
}

.prose a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 217, 255, 0.3);
  transition: border-color var(--transition-fast);
}

.prose a:hover {
  border-bottom-color: var(--primary);
}

.prose strong {
  color: var(--text-primary);
  font-weight: 600;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  color: var(--primary);
}

.prose pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  overflow-x: auto;
  margin: var(--space-6) 0;
}

.prose pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

.prose blockquote {
  border-left: 3px solid var(--primary);
  padding-left: var(--space-5);
  margin: var(--space-6) 0;
  color: var(--text-tertiary);
  font-style: italic;
  font-size: 18px;
}

.prose ul, .prose ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-5);
}

.prose li {
  margin-bottom: var(--space-2);
}

.prose img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  margin: var(--space-6) 0;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-10) 0;
}

/* === 提示框 === */
.callout {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
  font-size: 15px;
}

.callout--info {
  background: var(--primary-dim);
  border: 1px solid rgba(0, 217, 255, 0.2);
  color: var(--primary);
}

.callout--warning {
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.2);
  color: #fbbf24;
}

.callout--tip {
  background: var(--accent-green-dim);
  border: 1px solid rgba(95, 201, 146, 0.2);
  color: var(--accent-green);
}

.callout__icon { font-size: 20px; flex-shrink: 0; margin-top: 2px; }

.callout__content { flex: 1; line-height: 1.6; }
.callout__title { font-weight: 700; margin-bottom: var(--space-1); font-size: 15px; }

/* === 页脚 === */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

@media (max-width: 768px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
}

@media (max-width: 480px) {
  .footer__grid { grid-template-columns: 1fr; }
}

.footer__brand-desc {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.6;
  margin-top: var(--space-3);
  max-width: 280px;
}

.footer__col-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__link {
  font-size: 14px;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer__link:hover { color: var(--text-primary); }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__copyright {
  font-size: 13px;
  color: var(--text-muted);
}

.footer__social {
  display: flex;
  gap: var(--space-2);
}

.footer__social-link {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  text-decoration: none;
  font-size: 16px;
  transition: var(--transition-fast);
}

.footer__social-link:hover {
  color: var(--primary);
  border-color: rgba(0, 217, 255, 0.3);
  background: var(--primary-dim);
}

/* === 搜索框 === */
.search-box {
  position: relative;
  width: 100%;
}

.search-box__input {
  width: 100%;
  padding: 12px 16px 12px 44px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: 15px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  transition: var(--transition-fast);
  outline: none;
}

.search-box__input::placeholder { color: var(--text-muted); }

.search-box__input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}

.search-box__icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 16px;
  pointer-events: none;
}

/* === 悬浮下载按钮 === */
.floating-cta {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 90;
}

.floating-cta__btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 14px 24px;
  background: var(--gradient-mixed);
  color: var(--bg-void);
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 24px rgba(0, 217, 255, 0.35);
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.floating-cta__btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.floating-cta__btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0, 217, 255, 0.5);
}

.floating-cta__btn:hover::before {
  opacity: 1;
}

/* === 空状态 === */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-6);
}

.empty-state__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  background: var(--primary-dim);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}

.empty-state__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.empty-state__desc {
  font-size: 15px;
  color: var(--text-tertiary);
  max-width: 400px;
  margin: 0 auto;
}

/* === 页面头部 === */
.page-header {
  padding: 120px 0 var(--space-12);
  position: relative;
  overflow: hidden;
}

.page-header__glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(167, 139, 250, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.page-header__content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.page-header__title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.page-header__subtitle {
  font-size: 17px;
  color: var(--text-tertiary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.6;
}

/* === 筛选栏 === */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.filter-bar__left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.filter-bar__right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.filter-bar__count {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

/* === 平台下载卡片 === */
.platform-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  transition: var(--transition);
  text-decoration: none;
  display: block;
  position: relative;
  overflow: hidden;
}

.platform-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top, var(--primary-dim), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.platform-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

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

.platform-card__icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-4);
  background: var(--bg-elevated);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  position: relative;
}

.platform-card__name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.platform-card__desc {
  font-size: 14px;
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
}

.platform-card__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px 20px;
  background: var(--gradient-mixed);
  color: var(--bg-void);
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition-fast);
}

.platform-card__btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* === 动画 === */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(0, 217, 255, 0.2); }
  50% { box-shadow: 0 0 40px rgba(0, 217, 255, 0.4); }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.animate-in:nth-child(1) { animation-delay: 0s; }
.animate-in:nth-child(2) { animation-delay: 0.1s; }
.animate-in:nth-child(3) { animation-delay: 0.2s; }
.animate-in:nth-child(4) { animation-delay: 0.3s; }
.animate-in:nth-child(5) { animation-delay: 0.4s; }
.animate-in:nth-child(6) { animation-delay: 0.5s; }
.animate-in:nth-child(7) { animation-delay: 0.6s; }
.animate-in:nth-child(8) { animation-delay: 0.7s; }

/* === 懒加载样式 === */
.lazy-image {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.lazy-image.loaded {
  opacity: 1;
}

.lazy-bg {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.lazy-bg.loaded {
  opacity: 1;
}

.lazy-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.lazy-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === 搜索状态提示 === */
.search-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  margin-bottom: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.search-status i {
  color: var(--primary);
}

/* === 空状态样式 === */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-state__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border-radius: 20px;
}

.empty-state__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.empty-state__desc {
  font-size: 14px;
  color: var(--text-muted);
}

/* === 响应式 === */
@media (max-width: 1024px) {
  .navbar__links { display: none; }
  .navbar__mobile-toggle { display: flex; }
  .hero { padding-top: 100px; }
  .hero__stats { gap: var(--space-6); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hero__title { letter-spacing: -0.03em; }
  .hero__stats { flex-wrap: wrap; gap: var(--space-5); }
  .section__header { flex-direction: column; align-items: flex-start; }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .container { padding: 0 var(--space-4); }
  .hero { padding: 100px 0 60px; min-height: auto; }
  .hero__subtitle { margin-bottom: var(--space-8); }
  .hero__actions { flex-direction: column; width: 100%; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .hero__stats { flex-direction: column; gap: var(--space-4); }
  .section { padding: var(--space-12) 0; }
  .page-header { padding: 100px 0 var(--space-8); }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .floating-cta { bottom: var(--space-4); right: var(--space-4); }
  .floating-cta__btn { padding: 12px 20px; font-size: 14px; }
  .article-card--horizontal { flex-direction: column; }
  .article-card--horizontal .article-card__image { width: 100%; }
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
}

/* === 移动端导航抽屉 === */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
}

.mobile-menu.active { display: flex; }

.mobile-menu__panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  background: var(--bg-surface);
  border-left: 1px solid var(--border);
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--transition);
}

.mobile-menu.active .mobile-menu__panel {
  transform: translateX(0);
}

.mobile-menu__close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
  padding: var(--space-2);
  margin-bottom: var(--space-6);
}

.mobile-menu__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-menu__link {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius);
  transition: var(--transition-fast);
}

.mobile-menu__link:hover,
.mobile-menu__link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

/* === 特色文章大卡片内图标 === */
.featured-icon {
  width: 100px;
  height: 100px;
  background: var(--gradient-mixed);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  box-shadow: var(--shadow-glow-cyan);
  position: relative;
  animation: float 6s ease-in-out infinite;
}

.featured-icon::before {
  content: '';
  position: absolute;
  inset: -10px;
  background: var(--gradient-mixed);
  border-radius: var(--radius-xl);
  opacity: 0.2;
  filter: blur(20px);
  z-index: -1;
}

/* === 统计数字卡片发光边框 === */
.stat-card--highlighted {
  border-color: rgba(0, 217, 255, 0.3);
  box-shadow: var(--shadow-glow-cyan);
}

.stat-card--highlighted .stat-card__glow {
  opacity: 1;
}

/* === 渐变文字效果 === */
.gradient-text-animated {
  background: linear-gradient(90deg, var(--primary), var(--brand-purple), var(--primary));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientFlow 3s ease infinite;
}

@keyframes gradientFlow {
  0% { background-position: 0% center; }
  50% { background-position: 100% center; }
  100% { background-position: 0% center; }
}