/* 好鸭云 (haoyayun.cfd) 独家专属全套 CSS 样式库 - 2026 高级极客版 */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@500;700;800;900&display=swap');

:root {
  --bg-main: #fffdf5;
  --bg-secondary: #fefce8;
  --bg-card: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --accent-yellow: #facc15;
  --accent-yellow-dark: #eab308;
  --accent-orange: #f97316;
  --accent-blue: #0284c7;
  --accent-emerald: #059669;
  --accent-purple: #7c3aed;
  
  --border-color: #cbd5e1;
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 12px 30px -8px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 20px 40px -12px rgba(234, 179, 8, 0.3);
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶部 Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 253, 245, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 2px solid #fef08a;
  padding: 16px 0;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  font-size: 1.45rem;
  letter-spacing: -0.6px;
  color: var(--text-primary);
}

.brand-logo img {
  height: 42px;
  width: 42px;
  object-fit: contain;
  border-radius: 10px;
  border: 2px solid #000;
  box-shadow: 2px 2px 0px #000;
}

.brand-logo .brand-highlight {
  color: #ca8a04;
  background: #fef08a;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.nav-links a:hover {
  color: #0f172a;
}

.btn-register-nav {
  background-color: var(--accent-yellow);
  color: #000000;
  padding: 10px 26px;
  border-radius: 50px;
  font-weight: 800;
  font-size: 0.92rem;
  border: 2px solid #000000;
  box-shadow: 3px 3px 0px #000000;
}

.btn-register-nav:hover {
  background-color: var(--accent-yellow-dark);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0px #000000;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 75px 0 55px;
  text-align: center;
  background: radial-gradient(circle at 50% 30%, #fef9c3 0%, #fffdf5 75%);
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fef08a;
  color: #854d0e;
  padding: 8px 22px;
  border-radius: 50px;
  font-size: 0.92rem;
  font-weight: 800;
  margin-bottom: 24px;
  border: 2px solid #000;
  box-shadow: 3px 3px 0px #000;
}

.hero-badge .dot {
  width: 10px;
  height: 10px;
  background-color: #eab308;
  border-radius: 50%;
  box-shadow: 0 0 8px #ca8a04;
}

.hero-title {
  font-size: 3.3rem;
  font-weight: 900;
  letter-spacing: -1.2px;
  margin-bottom: 22px;
  color: #0f172a;
  line-height: 1.18;
}

.hero-subtitle {
  font-size: 1.18rem;
  color: var(--text-secondary);
  margin-bottom: 38px;
  line-height: 1.75;
  font-weight: 500;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 55px;
  flex-wrap: wrap;
}

/* 首页核心跳转按钮：机场推荐 (指向 jichangreview.net) */
.btn-hero-primary {
  background-color: var(--accent-yellow);
  color: #000000;
  padding: 15px 36px;
  border-radius: 50px;
  font-weight: 900;
  font-size: 1.08rem;
  border: 2.5px solid #000000;
  box-shadow: 4px 4px 0px #000000;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-hero-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px #000000;
  background-color: var(--accent-yellow-dark);
}

.btn-hero-register {
  background-color: #0f172a;
  color: var(--accent-yellow);
  padding: 15px 36px;
  border-radius: 50px;
  font-weight: 900;
  font-size: 1.08rem;
  border: 2.5px solid #000000;
  box-shadow: 4px 4px 0px #000000;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-hero-register:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px #000000;
  background-color: #1e293b;
}

.btn-hero-secondary {
  background-color: #ffffff;
  color: var(--text-primary);
  padding: 15px 32px;
  border-radius: 50px;
  font-weight: 800;
  font-size: 1.02rem;
  border: 2px solid #0f172a;
  box-shadow: 3px 3px 0px #000;
}

.btn-hero-secondary:hover {
  background-color: #f8fafc;
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0px #000;
}

/* Hero Stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 840px;
  margin: 0 auto;
  padding: 32px 24px;
  background: #ffffff;
  border-radius: 24px;
  border: 2.5px solid #000000;
  box-shadow: 6px 6px 0px #000000;
}

.stat-item h3 {
  font-size: 2.4rem;
  font-weight: 900;
  color: #000000;
  margin-bottom: 4px;
}

.stat-item p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  font-weight: 700;
}

/* Section 基础样式 */
.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  font-size: 2.4rem;
  font-weight: 900;
  margin-bottom: 14px;
  color: #0f172a;
  letter-spacing: -0.5px;
}

.section-subtitle {
  text-align: center;
  font-size: 1.08rem;
  color: var(--text-secondary);
  margin-bottom: 52px;
  font-weight: 500;
}

/* 服务优势：独具特色不同风格卡片设计 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--bg-card);
  padding: 36px 30px;
  border-radius: 24px;
  border: 2.5px solid #000000;
  box-shadow: 5px 5px 0px #000000;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: var(--accent-yellow);
}

.feature-card:nth-child(2)::before { background: #38bdf8; }
.feature-card:nth-child(3)::before { background: #a855f7; }
.feature-card:nth-child(4)::before { background: #34d399; }
.feature-card:nth-child(5)::before { background: #f43f5e; }
.feature-card:nth-child(6)::before { background: #fb923c; }

.feature-card:hover {
  transform: translate(-3px, -5px);
  box-shadow: 8px 8px 0px #000000;
}

.feature-icon-badge {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: #fef08a;
  border: 2px solid #000000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 20px;
  box-shadow: 3px 3px 0px #000000;
}

.feature-card:nth-child(2) .feature-icon-badge { background: #e0f2fe; }
.feature-card:nth-child(3) .feature-icon-badge { background: #f3e8ff; }
.feature-card:nth-child(4) .feature-icon-badge { background: #d1fae5; }
.feature-card:nth-child(5) .feature-icon-badge { background: #ffe4e6; }
.feature-card:nth-child(6) .feature-icon-badge { background: #ffedd5; }

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 900;
  margin-bottom: 12px;
  color: #0f172a;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.68;
}

/* 套餐价格 Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 26px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border-radius: 24px;
  padding: 38px 28px;
  border: 2.5px solid #000000;
  box-shadow: 5px 5px 0px #000000;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: all 0.3s ease;
}

.pricing-card.popular {
  background: #fffdf0;
  box-shadow: 8px 8px 0px #000000;
}

.pricing-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0px #000000;
}

.popular-badge {
  position: absolute;
  top: -14px;
  right: 24px;
  background: var(--accent-yellow);
  color: #000000;
  font-weight: 900;
  font-size: 0.82rem;
  padding: 4px 16px;
  border-radius: 50px;
  border: 2px solid #000000;
  box-shadow: 2px 2px 0px #000;
}

.pricing-header h3 {
  font-size: 1.4rem;
  font-weight: 900;
  margin-bottom: 12px;
}

.pricing-price {
  font-size: 2.9rem;
  font-weight: 900;
  color: #000000;
  margin-bottom: 24px;
}

.pricing-price span {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
}

.pricing-features li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.pricing-features li::before {
  content: "✓";
  background: #22c55e;
  color: #ffffff;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 900;
}

.btn-pricing {
  display: block;
  text-align: center;
  background-color: #0f172a;
  color: #ffffff;
  padding: 13px 20px;
  border-radius: 50px;
  font-weight: 800;
  font-size: 0.98rem;
  border: 2px solid #000000;
}

.pricing-card.popular .btn-pricing {
  background-color: var(--accent-yellow);
  color: #000000;
  border: 2px solid #000000;
  box-shadow: 3px 3px 0px #000000;
}

.btn-pricing:hover {
  opacity: 0.95;
  transform: translateY(-2px);
}

/* 推荐文章矩阵 - 彩色不同分类 Style */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 30px;
}

.article-card {
  background: var(--bg-card);
  border-radius: 24px;
  padding: 32px 28px;
  border: 2.5px solid #000000;
  box-shadow: 5px 5px 0px #000000;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s ease;
}

.article-card:hover {
  transform: translate(-3px, -5px);
  box-shadow: 8px 8px 0px #000000;
}

/* 文章分类 Tag 差异化色彩设计 */
.article-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 800;
  border: 1.5px solid #000000;
  margin-bottom: 16px;
  box-shadow: 2px 2px 0px #000;
}

.article-card:nth-child(1) .article-tag { background: #fef08a; color: #854d0e; }
.article-card:nth-child(2) .article-tag { background: #bae6fd; color: #0369a1; }
.article-card:nth-child(3) .article-tag { background: #fbcfe8; color: #be185d; }
.article-card:nth-child(4) .article-tag { background: #bbf7d0; color: #15803d; }
.article-card:nth-child(5) .article-tag { background: #ddd6fe; color: #6d28d9; }
.article-card:nth-child(6) .article-tag { background: #fed7aa; color: #c2410c; }

.article-card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 14px;
  line-height: 1.45;
  color: #0f172a;
}

.article-card h3 a:hover {
  color: var(--accent-orange);
}

.article-excerpt {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 22px;
  line-height: 1.65;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.88rem;
  color: var(--text-muted);
  border-top: 2px dashed #e2e8f0;
  padding-top: 16px;
  font-weight: 600;
}

.article-read-link {
  color: #000000;
  font-weight: 900;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.article-read-link:hover {
  color: var(--accent-orange);
  transform: translateX(3px);
}

/* 用户评价 Reviews */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 26px;
}

.review-card {
  background: var(--bg-card);
  border-radius: 24px;
  padding: 32px 28px;
  border: 2.5px solid #000000;
  box-shadow: 5px 5px 0px #000000;
}

.review-stars {
  color: #f59e0b;
  font-size: 1.2rem;
  margin-bottom: 16px;
}

.review-text {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.68;
  margin-bottom: 22px;
  font-weight: 500;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.avatar {
  width: 48px;
  height: 48px;
  background-color: var(--accent-yellow);
  color: #000000;
  font-weight: 900;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  border: 2px solid #000000;
  box-shadow: 2px 2px 0px #000;
}

.author-info h4 {
  font-size: 1rem;
  font-weight: 800;
}

.author-info p {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* FAQ Accordion */
.faq-accordion {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.faq-item {
  background: var(--bg-card);
  border-radius: 20px;
  border: 2.5px solid #000000;
  box-shadow: 4px 4px 0px #000000;
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 22px 28px;
  text-align: left;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-icon {
  font-size: 0.9rem;
  transition: transform 0.3s ease;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 28px;
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.68;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

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

.faq-item.active .faq-answer {
  max-height: 350px;
  padding: 0 28px 24px;
}

/* 文章详情页 Layout */
.article-page {
  padding: 45px 0 85px;
}

.breadcrumb {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  font-weight: 600;
}

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

.breadcrumb a:hover {
  color: #000000;
}

.article-header {
  margin-bottom: 36px;
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 28px;
}

.article-header h1 {
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 18px;
  color: #0f172a;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
}

.article-body-wrapper {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 45px;
}

.article-content {
  font-size: 1.08rem;
  line-height: 1.85;
  color: #1e293b;
}

.article-content h2 {
  font-size: 1.65rem;
  font-weight: 900;
  margin: 40px 0 18px;
  color: #0f172a;
  border-left: 5px solid var(--accent-yellow-dark);
  padding-left: 14px;
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin: 28px 0 14px;
  color: #0f172a;
}

.article-content p {
  margin-bottom: 20px;
}

.article-content ul, .article-content ol {
  margin: 0 0 24px 28px;
}

.article-content li {
  margin-bottom: 10px;
}

.cta-box {
  background: #fefce8;
  border: 2.5px solid #000000;
  box-shadow: 5px 5px 0px #000000;
  border-radius: 20px;
  padding: 28px;
  margin: 40px 0;
  text-align: center;
}

.cta-box h3 {
  font-size: 1.35rem;
  font-weight: 900;
  margin-bottom: 10px;
}

.cta-box p {
  font-size: 0.98rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.btn-cta-box {
  display: inline-block;
  background-color: var(--accent-yellow);
  color: #000000;
  font-weight: 900;
  padding: 13px 32px;
  border-radius: 50px;
  border: 2.5px solid #000000;
  box-shadow: 4px 4px 0px #000000;
}

.btn-cta-box:hover {
  background-color: var(--accent-yellow-dark);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px #000000;
}

.sidebar-widget {
  background: var(--bg-card);
  border-radius: 24px;
  padding: 28px;
  border: 2.5px solid #000000;
  box-shadow: 5px 5px 0px #000000;
  margin-bottom: 28px;
}

.widget-title {
  font-size: 1.15rem;
  font-weight: 900;
  margin-bottom: 18px;
  border-bottom: 3px solid var(--accent-yellow);
  padding-bottom: 10px;
}

.related-list {
  list-style: none;
}

.related-list li {
  margin-bottom: 14px;
  font-size: 0.92rem;
  line-height: 1.48;
}

.related-list a {
  color: var(--text-secondary);
  font-weight: 600;
}

.related-list a:hover {
  color: #000000;
  font-weight: 800;
}

/* PBN 权重管道页脚 */
footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 52px 0 36px;
  text-align: center;
  border-top: 3px solid #000000;
}

.footer-content {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 900;
  color: #ffffff;
}

.footer-brand img {
  height: 36px;
  width: 36px;
  object-fit: contain;
}

.footer-content p {
  font-size: 0.92rem;
  color: #64748b;
  font-weight: 500;
}

.pbn-links-wrapper {
  margin-top: 14px;
  font-size: 0.85rem;
  color: #64748b;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.pbn-links-list {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  list-style: none;
}

.pbn-links-list a {
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 700;
  transition: color 0.2s ease;
}

.pbn-links-list a:hover {
  color: var(--accent-yellow);
}

/* 响应式断点 */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero-title { font-size: 2.3rem; }
  .hero-subtitle { font-size: 1.02rem; }
  .hero-actions { flex-direction: column; }
  .hero-stats { grid-template-columns: 1fr; gap: 18px; }
  .article-body-wrapper { grid-template-columns: 1fr; }
}