/* ===== 休息一会小屋 - 全局样式 ===== */

/* --- CSS 变量（设计令牌） --- */
:root {
  --bg-primary: #0A1628;
  --bg-secondary: #1E3A5F;
  --bg-card: rgba(30, 58, 95, 0.5);
  --accent: #4A9EFF;
  --accent-secondary: #00D4AA;
  --text-primary: #E8EDF2;
  --text-secondary: #8892A0;
  --text-heading: #FFFFFF;
  --border-color: rgba(74, 158, 255, 0.15);
  --border-hover: rgba(74, 158, 255, 0.4);
  --glass-bg: rgba(30, 58, 95, 0.35);
  --glass-border: rgba(255, 255, 255, 0.08);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 12px 40px rgba(74, 158, 255, 0.15);
  --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 600ms cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --max-width: 1200px;
  --header-height: 64px;
}

/* --- 浅色主题覆盖 --- */
[data-theme="light"] {
  --bg-primary: #F0F2F5;
  --bg-secondary: #FFFFFF;
  --bg-card: rgba(255, 255, 255, 0.8);
  --accent: #2D7DD2;
  --accent-secondary: #00B894;
  --text-primary: #1A1A2E;
  --text-secondary: #555;
  --text-heading: #0A1628;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(45, 125, 210, 0.3);
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(0, 0, 0, 0.06);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 12px 40px rgba(45, 125, 210, 0.12);
}

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

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

body {
  font-family: 'Inter', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-secondary);
}

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

ul, ol {
  list-style: none;
}

/* --- 布局工具类 --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 12px;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
  border-radius: 2px;
  margin-top: 12px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 40px;
}

/* --- Header / 导航 --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 1000;
  transition: all var(--transition-fast);
}

.nav-wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-heading);
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.5px;
}

.logo .logo-icon {
  color: var(--accent);
  font-family: 'Fira Code', 'JetBrains Mono', monospace;
  font-size: 1.1rem;
}

.nav-menu {
  display: flex;
  gap: 8px;
}

.nav-link {
  color: var(--text-primary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent);
  background: rgba(74, 158, 255, 0.08);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: scale(1.05);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero 区 --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #0A1628 0%, #1E3A5F 50%, #2D5A7B 100%);
  position: relative;
  overflow: hidden;
  padding-top: var(--header-height);
}

[data-theme="light"] .hero {
  background: linear-gradient(135deg, #E8EDF2 0%, #D6E4F0 50%, #C3D9ED 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(74, 158, 255, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(0, 212, 170, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: 0 24px;
  animation: heroFadeIn 1s ease-out;
}

@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 16px;
  letter-spacing: 2px;
  line-height: 1.2;
}

[data-theme="light"] .hero h1 {
  color: #0A1628;
}

.hero .hero-tagline {
  font-size: 1.15rem;
  color: rgba(232, 237, 242, 0.8);
  margin-bottom: 36px;
}

[data-theme="light"] .hero .hero-tagline {
  color: rgba(26, 26, 46, 0.7);
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: var(--accent);
  color: #FFFFFF;
}

.btn-primary:hover {
  background: #3A8AEF;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(74, 158, 255, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-hover);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn:active {
  transform: scale(0.98);
}

/* --- Glassmorphism 卡片 --- */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

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

/* --- 技能标签区 --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 16px;
}

.skill-tag {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 12px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  cursor: default;
  transition: all var(--transition-fast);
  text-align: center;
}

.skill-tag:hover {
  border-color: var(--accent);
  background: rgba(74, 158, 255, 0.1);
  transform: translateY(-3px);
}

.skill-tag .skill-icon {
  font-size: 2rem;
  color: var(--accent);
}

.skill-tag .skill-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-heading);
}

.skill-tag .skill-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* --- 文章卡片 --- */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
}

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

.article-card .card-body {
  padding: 24px;
}

.article-card .card-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(74, 158, 255, 0.12);
  color: var(--accent);
  margin-bottom: 12px;
}

.article-card .card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 8px;
  line-height: 1.4;
  transition: color var(--transition-fast);
}

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

.article-card .card-summary {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card .card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* --- 项目卡片 --- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
}

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

.project-card .project-thumb {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--accent);
  position: relative;
  overflow: hidden;
}

.project-card .project-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.3) 100%);
}

.project-card .card-body {
  padding: 24px;
}

.project-card .card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 8px;
}

.project-card .card-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tech-badge {
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(0, 212, 170, 0.1);
  color: var(--accent-secondary);
  border: 1px solid rgba(0, 212, 170, 0.2);
}

/* --- 文章详情 --- */
.article-detail {
  max-width: 800px;
  margin: 0 auto;
  padding: calc(var(--header-height) + 60px) 24px 80px;
}

.article-detail .article-header {
  margin-bottom: 40px;
  text-align: center;
}

.article-detail .article-title {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 16px;
  line-height: 1.3;
}

.article-detail .article-meta {
  display: flex;
  justify-content: center;
  gap: 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-primary);
}

.article-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-heading);
  margin: 36px 0 16px;
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-heading);
  margin: 28px 0 12px;
}

.article-content p {
  margin-bottom: 18px;
}

.article-content ul, .article-content ol {
  margin-bottom: 18px;
  padding-left: 24px;
}

.article-content ul li {
  list-style: disc;
  margin-bottom: 8px;
}

.article-content ol li {
  list-style: decimal;
  margin-bottom: 8px;
}

.article-content blockquote {
  border-left: 4px solid var(--accent);
  padding: 12px 20px;
  margin: 24px 0;
  background: rgba(74, 158, 255, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
}

.article-content pre {
  background: #0D1117;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 20px;
  overflow-x: auto;
  margin: 24px 0;
  font-size: 0.9rem;
}

[data-theme="light"] .article-content pre {
  background: #1A1A2E;
}

.article-content code {
  font-family: 'Fira Code', 'JetBrains Mono', 'Courier New', monospace;
}

.article-content :not(pre) > code {
  background: rgba(74, 158, 255, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--accent);
}

/* 代码高亮 */
.token.comment, .token.prolog, .token.doctype, .token.cdata { color: #8B949E; }
.token.punctuation { color: #C9D1D9; }
.token.property, .token.tag, .token.boolean, .token.number, .token.constant, .token.symbol { color: #79C0FF; }
.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin, .token.inserted { color: #A5D6FF; }
.token.operator, .token.entity, .token.url, .language-css .token.string, .style .token.string { color: #FFA657; }
.token.atrule, .token.attr-value, .token.keyword { color: #FF7B72; }
.token.function, .token.class-name { color: #D2A8FF; }
.token.regex, .token.important, .token.variable { color: #FFA657; }

/* --- 项目详情 --- */
.project-detail {
  padding-top: calc(var(--header-height) + 60px);
}

.project-hero-img {
  width: 100%;
  height: 400px;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--accent);
  margin-bottom: 40px;
}

.detail-section {
  margin-bottom: 48px;
}

.detail-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 16px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.feature-item {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.feature-item h4 {
  color: var(--accent);
  margin-bottom: 8px;
  font-size: 1rem;
}

.feature-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* --- 关于我 --- */
.about-section {
  padding-top: calc(var(--header-height) + 60px);
}

.about-hero {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.about-avatar {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: #FFFFFF;
  flex-shrink: 0;
}

.about-intro h1 {
  font-size: 2rem;
  color: var(--text-heading);
  margin-bottom: 8px;
}

.about-intro .about-role {
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.about-intro .about-bio {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 600px;
}

.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-secondary));
}

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

.timeline-item::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-primary);
}

.timeline-item .timeline-date {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-item .timeline-title {
  font-size: 1.1rem;
  color: var(--text-heading);
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-item .timeline-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.skill-bars {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.skill-bar {
  margin-bottom: 8px;
}

.skill-bar .skill-bar-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

.skill-bar .skill-bar-name {
  font-weight: 600;
  color: var(--text-heading);
  font-size: 0.9rem;
}

.skill-bar .skill-bar-percent {
  color: var(--accent);
  font-size: 0.85rem;
}

.skill-bar .skill-bar-track {
  width: 100%;
  height: 8px;
  background: rgba(74, 158, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.skill-bar .skill-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
  border-radius: 4px;
  transition: width 1s ease-out;
}

/* --- 联系页 --- */
.contact-section {
  padding-top: calc(var(--header-height) + 60px);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  margin-top: 40px;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  transition: all var(--transition-fast);
}

.contact-info-item:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
}

.contact-info-item .contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(74, 158, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-info-item .contact-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.contact-info-item .contact-value {
  font-weight: 600;
  color: var(--text-heading);
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-heading);
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.12);
}

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

.form-error {
  display: none;
  color: #FF6B6B;
  font-size: 0.8rem;
  margin-top: 6px;
}

.form-group.error input,
.form-group.error textarea {
  border-color: #FF6B6B;
}

.form-group.error .form-error {
  display: block;
}

.form-success {
  display: none;
  padding: 16px 20px;
  background: rgba(0, 212, 170, 0.1);
  border: 1px solid var(--accent-secondary);
  border-radius: var(--radius-sm);
  color: var(--accent-secondary);
  margin-bottom: 24px;
  font-size: 0.9rem;
}

.form-success.show {
  display: block;
}

/* --- 文章列表页工具栏 --- */
.article-toolbar {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
  align-items: center;
}

.search-box {
  flex: 1;
  min-width: 240px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 10px 16px 10px 42px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent);
}

.search-box .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

.filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.filter-tab:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.filter-tab.active {
  background: var(--accent);
  color: #FFFFFF;
  border-color: var(--accent);
}

/* --- 分页 --- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

.pagination button {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.pagination button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.pagination button.active {
  background: var(--accent);
  color: #FFFFFF;
  border-color: var(--accent);
}

/* --- Footer --- */
.site-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 320px;
}

.footer-col h4 {
  color: var(--text-heading);
  font-size: 1rem;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer-bottom .icp a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

.footer-bottom .icp a:hover {
  color: var(--accent);
}

/* --- 滚动淡入动画 --- */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- 面包屑 --- */
.breadcrumb {
  padding-top: calc(var(--header-height) + 24px);
  padding-bottom: 0;
}

.breadcrumb ul {
  display: flex;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.breadcrumb ul li::after {
  content: '/';
  margin-left: 8px;
  color: var(--text-secondary);
}

.breadcrumb ul li:last-child::after {
  content: '';
}

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

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

/* --- 响应式 --- */
@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    background: var(--bg-primary);
    padding: 24px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: 999;
    overflow-y: auto;
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .nav-link {
    padding: 16px;
    font-size: 1.1rem;
    border-radius: var(--radius-sm);
  }

  .hamburger {
    display: flex;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero .hero-tagline {
    font-size: 0.95rem;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .article-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .article-detail .article-title {
    font-size: 1.6rem;
  }

  .article-detail .article-meta {
    flex-wrap: wrap;
    gap: 8px;
  }

  .about-hero {
    flex-direction: column;
    text-align: center;
    gap: 24px;
  }

  .about-avatar {
    margin: 0 auto;
  }

  .project-hero-img {
    height: 240px;
    font-size: 3rem;
  }

  .contact-form {
    padding: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* --- 滚动条美化 --- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-secondary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* --- 选中文字颜色 --- */
::selection {
  background: rgba(74, 158, 255, 0.3);
  color: #FFFFFF;
}

/* --- 相关文章推荐 --- */
.related-articles {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
}

.related-articles h3 {
  font-size: 1.3rem;
  color: var(--text-heading);
  margin-bottom: 24px;
}

/* --- 文末CTA --- */
.article-cta {
  margin-top: 48px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-align: center;
}

.article-cta h3 {
  color: var(--text-heading);
  margin-bottom: 8px;
}

.article-cta p {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

/* --- 项目详情按钮组 --- */
.detail-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 32px;
}