/* ==========================================================================
   泰山机场 (taishanjc.cfd) - 视觉设计系统 V5 (深海冰晶科技风 Deep Ocean Glacier)
   主打深海夜蓝基底、冰晶青蓝光束与沉稳干练的高高级流光质感
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

:root {
  /* 深海冰晶色彩体系 */
  --bg-primary: #030814;
  --bg-secondary: #081226;
  --bg-card: rgba(12, 24, 46, 0.75);
  --bg-glass: rgba(8, 18, 38, 0.88);
  
  --color-ice-cyan: #00f2fe;
  --color-glacier-blue: #38bdf8;
  --color-ocean-blue: #0284c7;
  --color-ice-white: #e0f2fe;
  
  --color-glacier-gradient: linear-gradient(135deg, #e0f2fe 0%, #38bdf8 50%, #0284c7 100%);
  --color-cyan-gradient: linear-gradient(135deg, #00f2fe 0%, #38bdf8 100%);
  
  --text-main: #ffffff;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glacier: rgba(56, 189, 248, 0.25);
  --border-glacier-bright: rgba(0, 242, 254, 0.6);

  --font-family: 'Noto Sans SC', 'Inter', system-ui, -apple-system, sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  --box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.9);
  --box-shadow-glacier: 0 10px 40px -10px rgba(56, 189, 248, 0.3);
  --glass-border: 1px solid rgba(56, 189, 248, 0.18);
}

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

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

body {
  background-color: var(--bg-primary);
  /* 深海冰晶基底：深海夜蓝 + 顶部璀璨冰晶光斑 + 沉稳高透脉冲 */
  background-image: 
    radial-gradient(ellipse at 50% -10%, rgba(56, 189, 248, 0.25) 0%, transparent 60%),
    radial-gradient(circle at 10% 45%, rgba(0, 242, 254, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 90% 80%, rgba(2, 132, 199, 0.15) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* 自定义尾翼 Canvas 粒子画板 */
#cursor-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 999999;
}

/* 容器定义 */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 渐变冰晶文本 */
.gradient-text-gold {
  background: var(--color-glacier-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 30px rgba(56, 189, 248, 0.35);
}

.gradient-text-cyan {
  background: var(--color-cyan-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 30px rgba(0, 242, 254, 0.35);
}

/* 按钮规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-glacier-gradient);
  color: #030814;
  box-shadow: 0 4px 25px rgba(56, 189, 248, 0.45);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 35px rgba(0, 242, 254, 0.65);
}

.btn-cyan {
  background: var(--color-cyan-gradient);
  color: #030814;
  box-shadow: 0 4px 25px rgba(0, 242, 254, 0.45);
}

.btn-cyan:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 35px rgba(0, 242, 254, 0.65);
}

.btn-outline {
  background: rgba(56, 189, 248, 0.08);
  color: var(--color-ice-white);
  border: 1px solid var(--border-glacier);
  backdrop-filter: blur(12px);
}

.btn-outline:hover {
  background: rgba(56, 189, 248, 0.18);
  border-color: var(--color-ice-cyan);
  color: #fff;
  transform: translateY(-2px);
}

/* Header & 导航栏 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: rgba(3, 8, 20, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glacier);
  padding: 0.8rem 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.4rem;
}

.logo-badge {
  background: var(--color-cyan-gradient);
  color: #030814;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Hero 顶部深海流光区 */
.hero {
  position: relative;
  padding: 11rem 0 6rem 0;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 920px;
  margin: 0 auto;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.25rem;
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid var(--border-glacier-bright);
  border-radius: var(--radius-full);
  color: var(--color-ice-cyan);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.75rem;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.2);
}

.hero-title {
  font-size: 3.75rem;
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  font-weight: 400;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

/* 核心特性指标 Grid */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  background: rgba(12, 24, 46, 0.85);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glacier);
  padding: 2.25rem 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--box-shadow);
}

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

.stat-num {
  font-size: 2.3rem;
  font-weight: 900;
  color: var(--color-ice-cyan);
  text-shadow: 0 0 20px rgba(0, 242, 254, 0.4);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* 核心优势板块 */
.features-section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 4rem auto;
}

.section-subtitle {
  color: var(--color-glacier-blue);
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-cyan-gradient);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glacier-bright);
  box-shadow: 0 20px 45px rgba(0, 242, 254, 0.25);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  color: var(--color-ice-cyan);
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 价格卡片 - 强制一排 */
.pricing-section {
  padding: 6rem 0;
  position: relative;
}

.pricing-row-wrapper {
  width: 100%;
  overflow-x: auto;
  padding-bottom: 1rem;
  -webkit-overflow-scrolling: touch;
}

.pricing-row-wrapper::-webkit-scrollbar {
  height: 6px;
}

.pricing-row-wrapper::-webkit-scrollbar-thumb {
  background: rgba(0, 242, 254, 0.4);
  border-radius: 10px;
}

.pricing-row {
  display: flex;
  gap: 1.5rem;
  justify-content: space-between;
  align-items: stretch;
  min-width: 1050px;
}

.price-card {
  flex: 1;
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  padding: 2.25rem 1.75rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
  backdrop-filter: blur(12px);
}

.price-card.featured {
  background: linear-gradient(180deg, rgba(0, 242, 254, 0.18) 0%, rgba(12, 24, 46, 0.95) 100%);
  border: 1.5px solid var(--color-ice-cyan);
  box-shadow: 0 12px 45px rgba(0, 242, 254, 0.3);
  transform: scale(1.02);
}

.popular-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--color-cyan-gradient);
  color: #030814;
  font-size: 0.75rem;
  font-weight: 900;
  padding: 0.2rem 0.8rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.price-header {
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.price-name {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.price-val {
  display: flex;
  align-items: baseline;
  gap: 0.2rem;
}

.price-currency {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-ice-cyan);
}

.price-amount {
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1;
  color: var(--text-main);
}

.price-period {
  font-size: 0.875rem;
  color: var(--text-muted);
}

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

.price-features li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.85rem;
  font-size: 0.925rem;
  color: var(--text-muted);
}

.price-features li.active {
  color: var(--text-main);
}

.price-features li i {
  color: var(--color-ice-cyan);
  font-size: 1.1rem;
}

.price-cta {
  width: 100%;
}

/* SEO 文章专区 - 强制单排 */
.articles-section {
  padding: 6rem 0;
}

.articles-row-wrapper {
  width: 100%;
  overflow-x: auto;
  padding-bottom: 1.25rem;
  -webkit-overflow-scrolling: touch;
}

.articles-row-wrapper::-webkit-scrollbar {
  height: 8px;
}

.articles-row-wrapper::-webkit-scrollbar-thumb {
  background: var(--color-cyan-gradient);
  border-radius: 10px;
}

.articles-row {
  display: flex;
  gap: 1.75rem;
  min-width: 1600px;
  align-items: stretch;
}

.article-card {
  flex: 1;
  min-width: 260px;
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  text-decoration: none;
  color: inherit;
  backdrop-filter: blur(12px);
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glacier-bright);
  box-shadow: 0 20px 45px rgba(0, 242, 254, 0.25);
}

.article-body {
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-tag {
  align-self: flex-start;
  background: rgba(0, 242, 254, 0.15);
  color: var(--color-ice-cyan);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  border: 1px solid rgba(0, 242, 254, 0.3);
}

.article-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.45;
  color: var(--text-main);
}

.article-card-excerpt {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

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

/* 用户真实评价模块 - 深海冰晶发光主题 */
.testimonials-section {
  padding: 6rem 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.testimonial-card {
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  position: relative;
  backdrop-filter: blur(16px);
  transition: all var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-6px);
}

/* 卡片 1 冰晶青脉 */
.testimonial-card.theme-cyan-purple {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.18) 0%, rgba(2, 132, 199, 0.15) 100%);
  border: 1px solid rgba(0, 242, 254, 0.4);
  box-shadow: 0 10px 35px rgba(0, 242, 254, 0.2);
}

.testimonial-card.theme-cyan-purple .stars {
  color: #00f2fe;
  text-shadow: 0 0 12px rgba(0, 242, 254, 0.6);
}

.testimonial-card.theme-cyan-purple .user-avatar {
  background: var(--color-cyan-gradient);
  color: #030814;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.4);
}

.testimonial-card.theme-cyan-purple .user-name {
  color: #e0f2fe;
}

.testimonial-card.theme-cyan-purple .user-role {
  color: #38bdf8;
  font-weight: 600;
}

/* 卡片 2 冰蓝霜致 */
.testimonial-card.theme-emerald-teal {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.18) 0%, rgba(12, 24, 46, 0.85) 100%);
  border: 1px solid rgba(56, 189, 248, 0.4);
  box-shadow: 0 10px 35px rgba(56, 189, 248, 0.2);
}

.testimonial-card.theme-emerald-teal .stars {
  color: #38bdf8;
  text-shadow: 0 0 12px rgba(56, 189, 248, 0.6);
}

.testimonial-card.theme-emerald-teal .user-avatar {
  background: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
  color: #fff;
  box-shadow: 0 4px 15px rgba(56, 189, 248, 0.4);
}

.testimonial-card.theme-emerald-teal .user-name {
  color: #e0f2fe;
}

.testimonial-card.theme-emerald-teal .user-role {
  color: #38bdf8;
  font-weight: 600;
}

/* 卡片 3 炫流晶光 */
.testimonial-card.theme-gold-amber {
  background: linear-gradient(135deg, rgba(224, 242, 254, 0.15) 0%, rgba(2, 132, 199, 0.18) 100%);
  border: 1px solid rgba(224, 242, 254, 0.4);
  box-shadow: 0 10px 35px rgba(224, 242, 254, 0.2);
}

.testimonial-card.theme-gold-amber .stars {
  color: #e0f2fe;
  text-shadow: 0 0 15px rgba(224, 242, 254, 0.8);
}

.testimonial-card.theme-gold-amber .user-avatar {
  background: linear-gradient(135deg, #e0f2fe 0%, #38bdf8 100%);
  color: #030814;
  box-shadow: 0 4px 15px rgba(224, 242, 254, 0.4);
}

.testimonial-card.theme-gold-amber .user-name {
  color: #e0f2fe;
}

.testimonial-card.theme-gold-amber .user-role {
  color: #38bdf8;
  font-weight: 600;
}

.stars {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  letter-spacing: 3px;
}

.testimonial-text {
  color: #e2e8f0;
  font-size: 0.98rem;
  line-height: 1.75;
  margin-bottom: 1.75rem;
  flex-grow: 1;
  font-style: italic;
}

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

.user-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
}

.user-name {
  font-weight: 800;
  font-size: 1.05rem;
}

.user-role {
  font-size: 0.825rem;
}

/* FAQ 问答手风琴 */
.faq-section {
  padding: 6rem 0;
}

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

.faq-item {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  overflow: hidden;
  transition: border-color var(--transition-fast);
  backdrop-filter: blur(12px);
}

.faq-question {
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
}

.faq-toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 242, 254, 0.1);
  color: var(--color-ice-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-toggle {
  transform: rotate(180deg);
  background: var(--color-ice-cyan);
  color: #030814;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 2rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 2rem 1.5rem 2rem;
}

/* 文章详情页专用排版规范 */
.article-page {
  padding: 9rem 0 6rem 0;
}

.article-header {
  text-align: center;
  max-width: 850px;
  margin: 0 auto 3.5rem auto;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
}

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

.article-title-main {
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 1.5rem;
}

.article-content-body {
  max-width: 850px;
  margin: 0 auto;
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  font-size: 1.05rem;
  line-height: 1.85;
  backdrop-filter: blur(16px);
}

.article-content-body h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin: 2.5rem 0 1.25rem 0;
  color: var(--color-ice-cyan);
  border-left: 4px solid var(--color-glacier-blue);
  padding-left: 1rem;
}

.article-content-body h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 2rem 0 1rem 0;
  color: var(--text-main);
}

.article-content-body p {
  margin-bottom: 1.5rem;
  color: #cbd5e1;
}

.article-content-body ul, .article-content-body ol {
  margin: 0 0 1.5rem 1.5rem;
  color: #cbd5e1;
}

.article-content-body li {
  margin-bottom: 0.5rem;
}

.article-content-body a {
  color: var(--color-ice-cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.article-content-body a:hover {
  color: var(--color-glacier-blue);
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.15) 0%, rgba(2, 132, 199, 0.15) 100%);
  border: 1px solid rgba(0, 242, 254, 0.35);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  text-align: center;
  margin: 3rem 0;
}

/* 页脚 Footer */
.footer {
  background: #01040a;
  border-top: 1px solid var(--border-glacier);
  padding: 4.5rem 0 2.5rem 0;
  color: var(--text-muted);
  position: relative;
  z-index: 10;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.9rem;
  margin-top: 1rem;
  max-width: 320px;
  color: var(--text-dim);
}

.footer-title {
  color: var(--text-main);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-ice-cyan);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* PBN 超级输血友情链接区域 */
.pbn-links-wrapper {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.pbn-links-wrapper a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.pbn-links-wrapper a:hover {
  color: var(--color-ice-cyan);
  text-decoration: underline;
}

/* 响应式适配 Responsive */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.75rem;
  }
  .features-grid, .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtitle {
    font-size: 1rem;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  .features-grid, .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .article-content-body {
    padding: 1.75rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}