/* ==========================================================================
   歪兔 (Waitu.cfd) - 高端极光暗黑风 & 兔子元素落地页设计系统 (v3 性能与双列优化版)
   ========================================================================== */

:root {
  --bg-dark: #090a10;
  --bg-card: rgba(18, 20, 32, 0.85);
  --bg-card-hover: rgba(28, 31, 50, 0.95);
  --primary-pink: #ff2a85;
  --primary-purple: #9d4edd;
  --accent-cyan: #00f2fe;
  --accent-blue: #4facfe;
  --text-main: #f1f5f9;
  --text-sub: #94a3b8;
  --text-muted: #64748b;
  --border-glow: rgba(255, 42, 133, 0.25);
  --border-cyan-glow: rgba(0, 242, 254, 0.25);
  --glass-bg: rgba(15, 17, 26, 0.75);
  --glass-border: rgba(255, 255, 255, 0.08);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --shadow-neon: 0 0 25px rgba(255, 42, 133, 0.35);
  --shadow-cyan: 0 0 25px rgba(0, 242, 254, 0.3);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-family);
  overflow-x: hidden;
}

/* 图4修改：背景保持高清晰、高对比度暗黑风格，无混乱阴影模糊，加载秒开 */
body {
  position: relative;
  min-height: 100vh;
  line-height: 1.6;
  background-color: #08090f;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(255, 42, 133, 0.05) 0%, transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(0, 242, 254, 0.05) 0%, transparent 45%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80' opacity='0.035'><path d='M40 12 C36 4, 30 12, 36 28 L44 32 Z' fill='%23ff2a85'/><path d='M56 12 C60 4, 66 12, 60 28 L52 32 Z' fill='%239d4edd'/><circle cx='48' cy='40' r='12' fill='%2300f2fe'/></svg>");
  background-repeat: repeat;
}

/* 鼠标尾翼 Canvas */
#cursor-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 99999;
}

::selection {
  background: var(--primary-pink);
  color: #fff;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-normal);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 霓虹发光按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-pink), var(--primary-purple));
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(255, 42, 133, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 42, 133, 0.6);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-cyan {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #050b14;
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.4);
}

.btn-cyan:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 242, 254, 0.6);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

.badge-rabbit {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 1rem;
  border-radius: 30px;
  background: rgba(255, 42, 133, 0.12);
  border: 1px solid rgba(255, 42, 133, 0.3);
  color: var(--primary-pink);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
  box-shadow: 0 0 15px rgba(255, 42, 133, 0.2);
}

/* Header & Navbar */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition-normal);
  backdrop-filter: blur(15px);
  background: rgba(9, 10, 16, 0.85);
  border-bottom: 1px solid var(--glass-border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, #ffffff 30%, var(--primary-pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-rabbit-icon {
  width: 38px;
  height: 38px;
  filter: drop-shadow(0 0 8px rgba(255, 42, 133, 0.6));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  color: var(--text-sub);
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--accent-cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 9rem 0 5rem 0;
  overflow: hidden;
  text-align: center;
}

.hero-bg-glow {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(255, 42, 133, 0.22) 0%, rgba(157, 78, 221, 0.18) 40%, rgba(9, 10, 16, 0) 70%);
  pointer-events: none;
  z-index: 0;
  filter: blur(50px);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff 20%, #e2e8f0 50%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title span {
  background: linear-gradient(135deg, var(--primary-pink), var(--primary-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.2rem;
  color: var(--text-sub);
  margin-bottom: 2.5rem;
  max-width: 750px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 1.8rem;
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

.stat-val {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-cyan);
  margin-bottom: 0.2rem;
}

.stat-lbl {
  font-size: 0.85rem;
  color: var(--text-sub);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3.5rem auto;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 0.8rem;
  background: linear-gradient(135deg, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

/* 一排式价格 */
.pricing-section {
  padding: 6rem 0;
  position: relative;
}

.search-bar-wrapper {
  max-width: 600px;
  margin: 0 auto 2.5rem auto;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 1rem 1.5rem 1rem 3.2rem;
  border-radius: 50px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-main);
  font-size: 1rem;
  outline: none;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

.search-input:focus {
  border-color: var(--primary-pink);
  box-shadow: 0 0 20px rgba(255, 42, 133, 0.3);
}

.search-icon {
  position: absolute;
  left: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.pricing-row-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-normal);
  position: relative;
  backdrop-filter: blur(15px);
}

.pricing-card.featured {
  border-color: var(--primary-pink);
  background: linear-gradient(180deg, rgba(255, 42, 133, 0.15) 0%, rgba(18, 20, 32, 0.9) 100%);
  box-shadow: var(--shadow-neon);
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-cyan);
}

.card-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: linear-gradient(135deg, var(--primary-pink), var(--primary-purple));
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.8rem;
  border-radius: 20px;
  text-transform: uppercase;
}

.plan-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}

.plan-price {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent-cyan);
  margin-bottom: 0.2rem;
}

.plan-price span {
  font-size: 0.9rem;
  color: var(--text-sub);
  font-weight: 400;
}

.plan-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.plan-features {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.plan-features li {
  font-size: 0.88rem;
  color: var(--text-sub);
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.plan-features li svg {
  color: var(--primary-pink);
  flex-shrink: 0;
}

/* ==========================================================================
   图1修改：推荐机场也放 2 个一排，且里面标签换丰富缤纷色彩 (Colorful Badges)
   ========================================================================== */
.airports-section {
  padding: 6rem 0;
  background: rgba(12, 14, 23, 0.7);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

/* 改为放 2 个一排格式 (repeat(2, 1fr)) */
.airports-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.airport-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(10px);
}

.airport-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0, 242, 254, 0.2);
}

.airport-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

.airport-name {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
}

/* 丰富的缤纷色彩标签 (Vibrant Color Tags) */
.airport-tag {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  letter-spacing: 0.3px;
}

.tag-cyan {
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.35);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
}

.tag-pink {
  background: rgba(255, 42, 133, 0.15);
  color: var(--primary-pink);
  border: 1px solid rgba(255, 42, 133, 0.35);
  box-shadow: 0 0 12px rgba(255, 42, 133, 0.2);
}

.tag-green {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.35);
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.2);
}

.tag-purple {
  background: rgba(157, 78, 221, 0.15);
  color: var(--primary-purple);
  border: 1px solid rgba(157, 78, 221, 0.35);
  box-shadow: 0 0 12px rgba(157, 78, 221, 0.2);
}

.tag-amber {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.35);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.2);
}

.tag-blue {
  background: rgba(79, 172, 254, 0.15);
  color: #4facfe;
  border: 1px solid rgba(79, 172, 254, 0.35);
  box-shadow: 0 0 12px rgba(79, 172, 254, 0.2);
}

.airport-info-list {
  list-style: none;
  font-size: 0.9rem;
  color: var(--text-sub);
  margin-bottom: 1.5rem;
}

.airport-info-list li {
  display: flex;
  justify-content: space-between;
  padding: 0.45rem 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
}

.airport-info-list li span:last-child {
  color: var(--text-main);
  font-weight: 600;
}

/* SEO 文章库 (2列放一排) */
.articles-section {
  padding: 6rem 0;
}

.keywords-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.keyword-tag {
  font-size: 0.85rem;
  color: var(--text-sub);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  padding: 0.35rem 0.9rem;
  border-radius: 20px;
  transition: var(--transition-normal);
}

.keyword-tag:hover {
  background: rgba(255, 42, 133, 0.15);
  color: var(--primary-pink);
  border-color: var(--primary-pink);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-pink);
  box-shadow: 0 12px 30px rgba(255, 42, 133, 0.25);
}

.article-thumb-wrapper {
  width: 100%;
  height: 190px;
  position: relative;
  overflow: hidden;
  background: #0f1322;
}

.article-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-card:hover .article-thumb-img {
  transform: scale(1.06);
}

.article-category-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(9, 10, 16, 0.85);
  backdrop-filter: blur(8px);
  color: var(--accent-cyan);
  border: 1px solid var(--border-cyan-glow);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.article-content-wrapper {
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: space-between;
}

.article-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.8rem;
  line-height: 1.45;
}

.article-excerpt {
  font-size: 0.9rem;
  color: var(--text-sub);
  margin-bottom: 1.2rem;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 1rem;
}

.article-read-more {
  color: var(--primary-pink);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.article-read-more:hover {
  color: var(--accent-cyan);
}

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(5, 7, 12, 0.88);
  backdrop-filter: blur(15px);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.modal-backdrop.active {
  display: flex;
}

.modal-content {
  background: var(--bg-dark);
  border: 1px solid var(--primary-pink);
  border-radius: var(--radius-md);
  max-width: 900px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: var(--shadow-neon);
}

.modal-close {
  position: absolute;
  top: 1.2rem;
  right: 1.5rem;
  font-size: 1.5rem;
  color: var(--text-sub);
  cursor: pointer;
  transition: var(--transition-normal);
}

.modal-close:hover {
  color: var(--primary-pink);
}

.article-body-rendered h2 {
  color: var(--accent-cyan);
  margin: 1.5rem 0 1rem 0;
  font-size: 1.4rem;
}

.article-body-rendered p {
  color: #cbd5e1;
  margin-bottom: 1rem;
  font-size: 0.95rem;
  line-height: 1.8;
}

/* 用户评价 */
.testimonials-section {
  padding: 6rem 0;
  background: rgba(12, 14, 23, 0.7);
  border-top: 1px solid var(--glass-border);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.8rem;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.user-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-pink), var(--primary-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 0 10px rgba(255, 42, 133, 0.4);
}

.user-name {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

.user-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.stars {
  color: #ffc107;
  margin-bottom: 0.8rem;
}

.comment-text {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.6;
}

/* FAQ 常见问题 */
.faq-section {
  padding: 6rem 0;
}

.faq-wrapper {
  max-width: 850px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: var(--transition-normal);
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.faq-question {
  padding: 1.3rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  color: #fff;
  font-size: 1.05rem;
}

.faq-toggle-icon {
  transition: transform 0.3s ease;
  color: var(--accent-cyan);
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 1.5rem;
  color: var(--text-sub);
  font-size: 0.92rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.5rem 1.5rem;
}

/* Footer & PBN 外链管道 */
.site-footer {
  background: #05060a;
  border-top: 1px solid var(--glass-border);
  padding: 4rem 0 2.5rem 0;
  text-align: center;
  position: relative;
}

.footer-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
}

.footer-links-nav {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  font-size: 0.9rem;
  color: var(--text-sub);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links-nav a:hover {
  color: var(--primary-pink);
}

/* PBN 友情链接区 - 包含 rel="noopener" 安全保护与 target="_blank" 纯 dofollow 传输 */
.pbn-links-area {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.pbn-title {
  font-weight: 500;
}

.pbn-item-link {
  color: #94a3b8;
  font-weight: 600;
  transition: var(--transition-normal);
}

.pbn-item-link:hover {
  color: var(--accent-cyan);
  text-decoration: underline;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 1.5rem;
}

/* 响应式适配 */
@media (max-width: 1024px) {
  .pricing-row-container {
    grid-template-columns: repeat(2, 1fr);
  }
  .airports-grid, .articles-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .pricing-row-container {
    grid-template-columns: 1fr;
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 1rem;
  }
  .pricing-card {
    min-width: 280px;
    scroll-snap-align: center;
  }
  .airports-grid, .articles-grid {
    grid-template-columns: 1fr;
  }
}