/* ========================================================
   jiedianku.online - 核心设计系统与样式表
   极致现代感、科技暗色调、排版精细、高响应度
   ======================================================== */

:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(31, 41, 55, 0.85);
  --bg-input: #1e293b;
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-light: rgba(59, 130, 246, 0.15);
  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(59, 130, 246, 0.4);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 25px rgba(59, 130, 246, 0.25);
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

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

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 85%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
  background-attachment: fixed;
}

/* 链接基础样式 */
a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: #60a5fa;
}

/* 容器定义 */
.container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========================================================
   头部导航栏 Header & Nav
   ======================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 15, 25, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 0;
  transition: var(--transition);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: -0.5px;
  flex-shrink: 0;
  white-space: nowrap;
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  color: #fff;
  border-radius: 10px;
  font-size: 1.15rem;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.logo span.domain {
  background: linear-gradient(90deg, #60a5fa, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(2px, 0.85vw, 10px);
  list-style: none;
  flex-wrap: nowrap;
}

.nav-links li {
  flex-shrink: 0;
}

.nav-links li a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.88rem;
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 4px;
  position: relative;
  white-space: nowrap;
  word-break: keep-all;
}

.nav-links li a:hover,
.nav-links li a.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.nav-links li a.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 8px;
  right: 8px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent-purple));
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #2563eb);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
  transform: translateY(-1px);
  color: #fff;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.82rem;
  border-radius: var(--radius-sm);
}

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
}
.btn-success:hover {
  background: linear-gradient(135deg, #059669, #047857);
  color: #fff;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ========================================================
   Notice Bar 顶部广播条
   ======================================================== */
.announcement-bar {
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.15));
  border-bottom: 1px solid rgba(59, 130, 246, 0.2);
  padding: 8px 0;
  font-size: 0.85rem;
  color: #cbd5e1;
}
.announcement-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.announcement-badge {
  background: var(--primary);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}
.announcement-link {
  color: #93c5fd;
  text-decoration: underline;
  margin-left: 6px;
}

/* ========================================================
   Hero Section 首页大横幅
   ======================================================== */
.hero-section {
  padding: 65px 0 45px 0;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: #93c5fd;
  margin-bottom: 22px;
}

.hero-pill .dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: 2.8rem;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 18px;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #60a5fa 10%, #a78bfa 50%, #38bdf8 90%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  max-width: 680px;
  margin: 0 auto 30px auto;
  font-size: 1.1rem;
  color: var(--text-muted);
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

/* 核心指标统计条 Stats Strip */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 20px;
  box-shadow: var(--shadow-sm);
}

.stat-item {
  text-align: center;
  padding: 8px;
  border-right: 1px solid var(--border-color);
}
.stat-item:last-child {
  border-right: none;
}
.stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 4px;
  background: linear-gradient(90deg, #60a5fa, #e2e8f0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ========================================================
   Section 通用板块布局
   ======================================================== */
.section-py {
  padding: 50px 0;
}

.section-header {
  margin-bottom: 32px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 16px;
}

.section-header-centered {
  text-align: center;
  justify-content: center;
  margin-bottom: 36px;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 6px;
}

/* ========================================================
   节点展示卡片与表格 Node Cards & Lists
   ======================================================== */
.nodes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 20px;
}

.node-card {
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.node-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.node-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent-purple));
  opacity: 0;
  transition: var(--transition);
}

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

.node-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}

.node-region {
  display: flex;
  align-items: center;
  gap: 10px;
}

.region-flag {
  font-size: 1.6rem;
  line-height: 1;
}

.region-info h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
}

.region-info span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.node-protocol-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  background: rgba(59, 130, 246, 0.15);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.tag-vless { background: rgba(59, 130, 246, 0.15); color: #93c5fd; }
.tag-vmess { background: rgba(139, 92, 246, 0.15); color: #c4b5fd; }
.tag-trojan { background: rgba(245, 158, 11, 0.15); color: #fcd34d; }
.tag-clash { background: rgba(16, 185, 129, 0.15); color: #6ee7b7; }
.tag-singbox { background: rgba(244, 63, 94, 0.15); color: #fda4af; }

.node-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  background: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-sm);
  padding: 10px;
  margin-bottom: 16px;
  font-size: 0.8rem;
}

.spec-item {
  text-align: center;
}
.spec-item .label {
  color: var(--text-dim);
  display: block;
  font-size: 0.72rem;
  margin-bottom: 2px;
}
.spec-item .value {
  color: var(--text-main);
  font-weight: 600;
}
.spec-item .value.online { color: var(--accent-emerald); }
.spec-item .value.fast { color: #60a5fa; }

.node-actions {
  display: flex;
  gap: 10px;
}

.node-actions .btn {
  flex: 1;
}

/* 订阅源通用大卡片 Subscription Hero Box */
.sub-box {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.95));
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 35px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.sub-box-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sub-input-group {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 6px 8px 6px 16px;
  margin: 16px 0;
}

.sub-input-group input {
  flex: 1;
  background: transparent;
  border: none;
  color: #93c5fd;
  font-family: monospace;
  font-size: 0.95rem;
  outline: none;
}

/* ========================================================
   客户端与教程卡片 Client & Tutorial Cards
   ======================================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 18px;
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
}

.feature-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
  flex-grow: 1;
}

.client-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
  margin-top: auto;
}

/* 教程文章列表卡片 Tutorial Cards */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.article-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

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

.article-tag {
  background: rgba(59, 130, 246, 0.12);
  color: #93c5fd;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.article-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  line-height: 1.4;
}

.article-excerpt {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 20px;
  flex: 1;
}

/* ========================================================
   文章内页布局 (如教程详情)
   ======================================================== */
.post-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 36px;
  padding: 30px 0 60px 0;
}

.post-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.post-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 28px;
}

.post-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  color: #fff;
}

.post-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin: 32px 0 16px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  border-left: 4px solid var(--primary);
  padding-left: 12px;
}

.post-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #e2e8f0;
  margin: 24px 0 12px 0;
}

.post-content p {
  margin-bottom: 16px;
  color: #d1d5db;
  font-size: 1.02rem;
  line-height: 1.75;
}

.post-content ul, .post-content ol {
  margin: 16px 0 20px 24px;
  color: #d1d5db;
}

.post-content li {
  margin-bottom: 8px;
}

.callout {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin: 20px 0;
  border-left: 4px solid;
}
.callout-info {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--primary);
  color: #bfdbfe;
}
.callout-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--accent-amber);
  color: #fde68a;
}
.callout-success {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--accent-emerald);
  color: #a7f3d0;
}

/* 代码与配置高亮区域 */
pre.code-block {
  background: #090d16;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
  overflow-x: auto;
  font-family: Consolas, Monaco, "Courier New", monospace;
  font-size: 0.9rem;
  color: #e2e8f0;
  margin: 20px 0;
  position: relative;
}

/* 侧边栏 Widget */
.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
}

.widget-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.widget-links {
  list-style: none;
}
.widget-links li {
  margin-bottom: 10px;
}
.widget-links a {
  color: var(--text-muted);
  display: block;
  font-size: 0.9rem;
}
.widget-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

/* 面包屑 Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 20px;
}
.breadcrumb a {
  color: var(--text-muted);
}
.breadcrumb a:hover {
  color: var(--primary);
}

/* ========================================================
   常见问答 FAQ
   ======================================================== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  padding: 18px 22px;
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-question:hover {
  color: #93c5fd;
}

.faq-answer {
  padding: 0 22px 18px 22px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ========================================================
   底部页脚 Footer
   ======================================================== */
.site-footer {
  margin-top: auto;
  background: #080b12;
  border-top: 1px solid var(--border-color);
  padding: 55px 0 25px 0;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 45px;
}

.footer-col h5 {
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  color: var(--text-muted);
  font-size: 0.9rem;
}
.footer-col ul li a:hover {
  color: #fff;
  padding-left: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tech-badge {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ========================================================
   Toast 通知组件
   ======================================================== */
#toast {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: #1e293b;
  color: #fff;
  border: 1px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 12px 22px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: all 0.3s ease;
  font-size: 0.95rem;
}
#toast.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* ========================================================
   移动端与响应式适配 Responsive
   ======================================================== */
@media (max-width: 992px) {
  .post-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stats-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item:nth-child(2) {
    border-right: none;
  }
}

@media (max-width: 1140px) {
  .mobile-toggle {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background: #0f172a;
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 20px;
    gap: 10px;
    display: none;
    box-shadow: var(--shadow-md);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .stats-strip {
    grid-template-columns: 1fr;
  }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
  }
  .stat-item:last-child {
    border-bottom: none;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

/* ========================================================
   机场推荐与评测模块专用样式 Airport Cards & Review Styles
   ======================================================== */
.airport-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 26px;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}
.airport-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}
.airport-badge-rank {
  position: absolute;
  top: 18px;
  right: 18px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.4);
}
.airport-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.airport-avatar {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(139, 92, 246, 0.2));
  border: 1px solid var(--border-color);
}
.airport-title-group h3 {
  font-size: 1.25rem;
  color: #fff;
  margin-bottom: 2px;
}
.airport-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.airport-tag {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: #94a3b8;
  border: 1px solid var(--border-color);
}
.airport-tag.highlight {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  border-color: rgba(16, 185, 129, 0.3);
}
.airport-pricing {
  margin: 14px 0;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.price-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: #60a5fa;
}
.price-period {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.coupon-box {
  background: rgba(245, 158, 11, 0.08);
  border: 1px dashed rgba(245, 158, 11, 0.4);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  font-size: 0.85rem;
  color: #fde68a;
}
.coupon-code {
  font-weight: 700;
  font-family: monospace;
  color: #fbbf24;
}
.review-score-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(59, 130, 246, 0.08);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 20px;
}
.score-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}