/* 
   闪跃 (FlashLeap) 极速网络加速器 - 新潮酷炫浅色漫画风 (Trendy Light Comic Style)
   纯原生 CSS 样式表 | 明亮对比度 | 漫画粗黑描边与阴影 | 浅色网点印花与极佳可读性
*/

:root {
  /* 浅色漫画风主配色方案 */
  --bg-dark: #f3f5fa;
  --bg-card: #ffffff;
  --bg-card-alt: #e9eeed;
  --bg-header: rgba(255, 255, 255, 0.93);
  
  --manga-black: #000000;
  --manga-white: #ffffff;
  --manga-cyan: #00d2ee;
  --manga-pink: #ff0055;
  --manga-yellow: #ffe600;
  --manga-purple: #8b00ff;
  --manga-green: #00c853;
  --manga-blue: #2563eb;
  
  --text-main: #0f172a;
  --text-muted: #334155;
  --text-dim: #64748b;
  
  /* 漫画标志性黑描边与硬阴影 */
  --border-thick: 3px solid var(--manga-black);
  
  --shadow-comic-black: 5px 5px 0px var(--manga-black);
  --shadow-comic-pink: 5px 5px 0px var(--manga-pink);
  --shadow-comic-cyan: 5px 5px 0px var(--manga-cyan);
  --shadow-comic-yellow: 5px 5px 0px var(--manga-yellow);
  --shadow-comic-purple: 5px 5px 0px var(--manga-purple);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --max-width: 1200px;
  --transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* 全局基础设置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Impact", "Arial Black", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  /* 浅色漫画复古网点背景 (Light Pop-Art Halftone) */
  background-image: 
    radial-gradient(rgba(0, 0, 0, 0.08) 1.5px, transparent 1.5px),
    radial-gradient(rgba(255, 0, 85, 0.05) 1.5px, var(--bg-dark) 1.5px);
  background-size: 26px 26px;
  background-position: 0 0, 13px 13px;
  background-attachment: fixed;
}

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

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
  position: relative;
}

.section-title-wrap {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 64px;
  position: relative;
}

/* 浅色漫画贴纸/斜角 Badge */
.section-badge {
  display: inline-block;
  padding: 6px 18px;
  background: var(--manga-yellow);
  color: var(--manga-black);
  border: var(--border-thick);
  box-shadow: 4px 4px 0px var(--manga-black);
  font-size: 0.95rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  transform: rotate(-2deg);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.75rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
  text-transform: uppercase;
  color: var(--text-main);
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* 浅色高显眼文字 */
.text-cyan {
  color: #0088aa;
}

.text-pink {
  color: var(--manga-pink);
}

.text-yellow {
  color: #d97706;
}

/* 浅色漫画按钮 (Comic Neo-Brutalist Buttons) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 1.1rem;
  font-weight: 900;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: var(--border-thick);
  min-height: 54px;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  position: relative;
  user-select: none;
}

.btn-primary {
  background: var(--manga-cyan);
  color: var(--manga-black);
  box-shadow: var(--shadow-comic-black);
}

.btn-primary:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0px var(--manga-black);
  background: var(--manga-yellow);
}

.btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0px var(--manga-black);
}

.btn-pink {
  background: var(--manga-pink);
  color: #ffffff;
  box-shadow: var(--shadow-comic-black);
}

.btn-pink:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0px var(--manga-black);
  background: var(--manga-purple);
}

.btn-secondary {
  background: #ffffff;
  color: var(--manga-black);
  box-shadow: var(--shadow-comic-black);
}

.btn-secondary:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0px var(--manga-pink);
  background: var(--manga-yellow);
}

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1.25rem;
  border-radius: var(--radius-md);
}

/* 顶部导航栏 (Light Comic Nav) */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--bg-header);
  backdrop-filter: blur(12px);
  border-bottom: var(--border-thick);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--manga-black);
  text-transform: uppercase;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: var(--manga-yellow);
  border: var(--border-thick);
  box-shadow: 3px 3px 0px var(--manga-black);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--manga-black);
  transform: rotate(-4deg);
  font-size: 1.25rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--manga-black);
  position: relative;
}

.nav-link:hover {
  color: var(--manga-pink);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--manga-pink);
  transition: width 0.2s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* 主视觉 / Hero 区域 */
.hero {
  padding-top: 180px;
  padding-bottom: 96px;
  text-align: center;
  position: relative;
}

.hero-badge {
  transform: rotate(-1.5deg);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.75rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  text-transform: uppercase;
  color: var(--manga-black);
}

.comic-burst {
  display: inline-block;
  background: var(--manga-pink);
  color: #ffffff;
  padding: 0 16px;
  border: var(--border-thick);
  box-shadow: 4px 4px 0px var(--manga-black);
  transform: rotate(2deg);
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 48px;
  line-height: 1.7;
  font-weight: 600;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--bg-card);
  border: var(--border-thick);
  box-shadow: var(--shadow-comic-black);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.stat-item {
  text-align: center;
  border-right: 2px dashed rgba(0, 0, 0, 0.15);
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--manga-pink);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-muted);
}

/* 核心优势区域 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: var(--border-thick);
  box-shadow: var(--shadow-comic-black);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
}

.feature-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 9px 9px 0px var(--manga-cyan);
  background: #ffffff;
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--manga-yellow);
  border: var(--border-thick);
  box-shadow: 3px 3px 0px var(--manga-black);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--manga-black);
  font-size: 1.6rem;
  margin-bottom: 24px;
  transform: rotate(-3deg);
}

.feature-title {
  font-size: 1.35rem;
  font-weight: 900;
  margin-bottom: 12px;
  color: var(--manga-black);
}

.feature-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.65;
  font-weight: 600;
}

/* 流媒体与 AI 支持专区 */
.media-ai-box {
  background: var(--bg-card);
  border: var(--border-thick);
  box-shadow: var(--shadow-comic-black);
  border-radius: var(--radius-lg);
  padding: 48px;
}

.media-ai-subgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.media-column-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.4rem;
  font-weight: 900;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px dashed rgba(0, 0, 0, 0.15);
  color: var(--manga-black);
}

.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-dark);
  color: var(--manga-black);
  border: var(--border-thick);
  box-shadow: 3px 3px 0px var(--manga-black);
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-size: 0.95rem;
  font-weight: 800;
  transition: var(--transition);
}

.tag-pill:hover {
  background: var(--manga-yellow);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0px var(--manga-black);
}

.unlock-banner {
  margin-top: 40px;
  background: #fef08a;
  color: var(--manga-black);
  border: var(--border-thick);
  box-shadow: var(--shadow-comic-black);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.03em;
}

/* 套餐价格对比区域 (Light Comic Pricing Panels) */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: var(--border-thick);
  box-shadow: var(--shadow-comic-black);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.pricing-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 9px 9px 0px var(--manga-pink);
}

.pricing-card.popular {
  border-color: var(--manga-black);
  background: #fffdf0;
  box-shadow: 8px 8px 0px var(--manga-black);
}

.badge-popular {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%) rotate(-2deg);
  background: var(--manga-pink);
  color: #ffffff;
  border: var(--border-thick);
  box-shadow: 3px 3px 0px var(--manga-black);
  padding: 6px 20px;
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.plan-name {
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: 8px;
  color: var(--manga-black);
}

.plan-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  font-weight: 600;
}

.plan-price {
  margin-bottom: 32px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-currency {
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--manga-pink);
}

.price-number {
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--manga-black);
  letter-spacing: -0.03em;
}

.price-period {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 800;
}

.plan-features {
  margin-bottom: 36px;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 14px;
  font-weight: 700;
}

.check-icon {
  color: var(--manga-green);
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* 用户评价区域 (Light Comic Cards) */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.review-card {
  background: var(--bg-card);
  border: var(--border-thick);
  box-shadow: var(--shadow-comic-black);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.review-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0px var(--manga-cyan);
}

.review-stars {
  color: #f59e0b;
  font-size: 1.2rem;
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}

.review-text {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
  font-weight: 600;
}

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

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--manga-yellow);
  border: var(--border-thick);
  box-shadow: 2px 2px 0px var(--manga-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: var(--manga-black);
  font-size: 1.2rem;
}

.author-info h4 {
  font-size: 1rem;
  font-weight: 900;
  color: var(--manga-black);
}

.author-info p {
  font-size: 0.85rem;
  color: #0284c7;
  font-weight: 700;
}

/* 常见问题解答 (FAQ Light Accordion) */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.faq-item {
  background: var(--bg-card);
  border: var(--border-thick);
  box-shadow: var(--shadow-comic-black);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  box-shadow: 7px 7px 0px var(--manga-black);
}

.faq-question {
  padding: 24px;
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--manga-black);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-arrow {
  transition: transform 0.3s ease;
  color: var(--manga-black);
  font-weight: 900;
}

.faq-item[open] .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px 24px 24px;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
  font-weight: 600;
  border-top: 2px dashed rgba(0, 0, 0, 0.1);
  padding-top: 16px;
}

/* 页脚：浅色绝美漫画规范 */
.footer {
  background-color: #e2e8f0;
  border-top: var(--border-thick);
  padding: 48px 0;
  text-align: center;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.footer-link {
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--manga-black);
  padding: 8px 20px;
  background: #ffffff;
  border: var(--border-thick);
  box-shadow: 3px 3px 0px var(--manga-black);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.footer-link:hover {
  background: var(--manga-yellow);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0px var(--manga-pink);
}

.footer-copyright {
  font-size: 0.9rem;
  color: var(--text-dim);
  font-weight: 700;
}

/* -------------------------------------------------------------
   浅色次级页面通用漫画规范
   ------------------------------------------------------------- */
.subpage-header {
  padding: 150px 0 50px;
  text-align: center;
  border-bottom: var(--border-thick);
  background: radial-gradient(circle at 50% 30%, rgba(0, 210, 238, 0.15) 0%, transparent 70%);
}

.subpage-title {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 16px;
  text-transform: uppercase;
  color: var(--manga-black);
}

.subpage-subtitle {
  color: var(--text-muted);
  font-size: 1.15rem;
  font-weight: 600;
}

.content-box {
  background: var(--bg-card);
  border: var(--border-thick);
  box-shadow: var(--shadow-comic-black);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin: 48px auto 96px;
  max-width: 940px;
}

.content-box h2 {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--manga-black);
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px dashed rgba(0, 0, 0, 0.15);
}

.content-box h2:first-child {
  margin-top: 0;
}

.content-box p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 16px;
  font-weight: 600;
}

.content-box ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 24px;
  color: var(--text-muted);
}

.content-box li {
  margin-bottom: 8px;
  line-height: 1.7;
  font-weight: 600;
}

.highlight-banner {
  background: #ffe4e6;
  border: var(--border-thick);
  box-shadow: 4px 4px 0px var(--manga-black);
  padding: 18px 24px;
  border-radius: var(--radius-sm);
  margin: 24px 0;
  color: #9f1239;
  font-size: 1rem;
  font-weight: 900;
}

.green-banner {
  background: #dcfce7;
  border: var(--border-thick);
  box-shadow: 4px 4px 0px var(--manga-black);
  padding: 18px 24px;
  border-radius: var(--radius-sm);
  margin: 24px 0;
  color: #14532d;
  font-size: 1rem;
  font-weight: 900;
}

.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.sitemap-card {
  background: var(--bg-dark);
  border: var(--border-thick);
  box-shadow: 4px 4px 0px var(--manga-black);
  border-radius: var(--radius-md);
  padding: 24px;
}

.sitemap-card h3 {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--manga-black);
  margin-bottom: 16px;
}

.sitemap-links-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sitemap-links-list a {
  color: var(--text-main);
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.sitemap-links-list a:hover {
  color: var(--manga-pink);
  transform: translateX(6px);
}

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

  .hero-title {
    font-size: 3rem;
  }
}

@media (max-width: 768px) {
  .header {
    height: 72px;
  }

  .nav-container {
    height: 72px;
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding-top: 130px;
    padding-bottom: 64px;
  }

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

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 20px;
  }

  .stat-item {
    border-right: none;
    border-bottom: 2px dashed rgba(0, 0, 0, 0.15);
    padding-bottom: 12px;
  }

  .stat-item:last-child {
    border-bottom: none;
  }

  .stat-number {
    font-size: 2rem;
  }

  .features-grid,
  .pricing-grid,
  .reviews-grid,
  .media-ai-subgrid,
  .sitemap-grid {
    grid-template-columns: 1fr;
  }

  .media-ai-box,
  .content-box {
    padding: 24px 20px;
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 2rem;
  }

  .btn {
    width: 100%;
    padding: 16px 24px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }

  .footer-link {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.85rem;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }
}