/* ========================================
   禁漫天堂网-17.c在线 - 主样式表
   漫画社区互动平台 | 9vdpz.cn
   ======================================== */

/* CSS Variables */
:root {
  --primary: #6C5CE7;
  --primary-dark: #5A4BD1;
  --secondary: #00CEC9;
  --accent: #FD79A8;
  --bg-dark: #0F0F1A;
  --bg-card: #1A1A2E;
  --bg-section: #12121F;
  --text-primary: #EAEAEA;
  --text-secondary: #A0A0B8;
  --text-muted: #6C6C80;
  --border-color: #2A2A40;
  --gradient-primary: linear-gradient(135deg, #6C5CE7, #A29BFE);
  --gradient-accent: linear-gradient(135deg, #FD79A8, #FDCB6E);
  --gradient-hero: linear-gradient(135deg, #0F0F1A 0%, #1A1A2E 50%, #16213E 100%);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.3);
  --shadow-hover: 0 8px 32px rgba(108,92,231,0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section-padding { padding: 60px 0; }

/* ========== Header & Navigation ========== */
.site-header {
  background: rgba(15,15,26,0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: 1200px;
  margin: 0 auto;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { height: 42px; width: auto; }
.logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  color: #fff;
  background: rgba(108,92,231,0.2);
}
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Search Bar */
.search-bar {
  background: var(--bg-section);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
}
.search-bar .container { display: flex; justify-content: center; }
.search-form {
  display: flex;
  max-width: 600px;
  width: 100%;
  background: var(--bg-card);
  border-radius: 50px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}
.search-form:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(108,92,231,0.2); }
.search-form input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 12px 20px;
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
}
.search-form input::placeholder { color: var(--text-muted); }
.search-form button {
  background: var(--gradient-primary);
  border: none;
  color: #fff;
  padding: 12px 24px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}
.search-form button:hover { opacity: 0.9; }

/* ========== Hero Banner ========== */
.hero-banner {
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding: 80px 0;
}
.hero-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(108,92,231,0.15), transparent 70%);
  border-radius: 50%;
}
.hero-content {
  display: flex;
  align-items: center;
  gap: 40px;
  position: relative;
  z-index: 1;
}
.hero-text { flex: 1; }
.hero-text h1 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-text p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 500px;
}
.hero-image { flex: 0 0 400px; }
.hero-image img { border-radius: var(--radius); box-shadow: var(--shadow-card); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.hero-tag {
  background: rgba(108,92,231,0.15);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  border: 1px solid rgba(108,92,231,0.3);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 15px rgba(108,92,231,0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(108,92,231,0.5); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; }

/* ========== Section Titles ========== */
.section-title {
  text-align: center;
  margin-bottom: 40px;
}
.section-title h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.section-title h2 span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-title p { color: var(--text-secondary); font-size: 1rem; }
.section-divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  margin: 12px auto;
  border-radius: 3px;
}

/* ========== Video Cards ========== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.video-thumb {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
}
.video-thumb img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  background: rgba(108,92,231,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  z-index: 2;
}
.play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
  margin-left: 3px;
}
.video-card:hover .play-btn { opacity: 1; }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.8);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  z-index: 2;
}
.video-info { padding: 14px; }
.video-info h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}
.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.8rem;
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.video-tag {
  background: rgba(108,92,231,0.1);
  color: var(--primary);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
}

/* ========== Expert Cards ========== */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: var(--transition);
}
.expert-card:hover { border-color: var(--primary); box-shadow: var(--shadow-hover); }
.expert-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--primary);
}
.expert-card h3 { font-size: 1.1rem; margin-bottom: 4px; }
.expert-card .title { color: var(--primary); font-size: 0.85rem; margin-bottom: 10px; }
.expert-card .bio { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 14px; line-height: 1.6; }
.expert-actions { display: flex; gap: 10px; justify-content: center; }
.expert-actions .btn { padding: 8px 18px; font-size: 0.8rem; }

/* ========== FAQ Section ========== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary); }
.faq-question {
  padding: 16px 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 0.95rem;
}
.faq-question::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--primary);
  transition: var(--transition);
}
.faq-item.active .faq-question::after { content: '-'; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-answer-inner {
  padding: 0 20px 16px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ========== Reviews ========== */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  transition: var(--transition);
}
.review-card:hover { border-color: var(--primary); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
}
.review-name { font-weight: 600; font-size: 0.9rem; }
.review-date { color: var(--text-muted); font-size: 0.75rem; }
.review-stars { color: #FDCB6E; font-size: 0.85rem; margin-bottom: 8px; }
.review-text { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.7; }

/* ========== Partner Logos ========== */
.partner-section { background: var(--bg-section); }
.partner-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 30px;
}
.partner-logos img {
  height: 50px;
  opacity: 0.6;
  filter: grayscale(100%);
  transition: var(--transition);
}
.partner-logos img:hover { opacity: 1; filter: grayscale(0%); }

/* ========== How-To Guide ========== */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 24px;
}
.howto-step {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}
.howto-step:hover { border-color: var(--primary); transform: translateY(-3px); }
.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  margin: 0 auto 14px;
}
.howto-step h4 { margin-bottom: 8px; font-size: 1rem; }
.howto-step p { color: var(--text-secondary); font-size: 0.85rem; }

/* ========== Contact Section ========== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 24px;
}
.contact-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  border: 1px solid var(--border-color);
}
.contact-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.contact-card h4 { margin-bottom: 8px; color: var(--text-primary); }
.contact-card p { color: var(--text-secondary); font-size: 0.85rem; }

/* ========== Social Share ========== */
.social-share { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  color: #fff;
  transition: var(--transition);
}
.share-btn:hover { transform: translateY(-2px); color: #fff; }
.share-wechat { background: #07C160; }
.share-weibo { background: #E6162D; }
.share-douyin { background: #161823; border: 1px solid #333; }
.share-bilibili { background: #FB7299; }

/* ========== Breadcrumb ========== */
.breadcrumb {
  padding: 12px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-section);
  border-top: 1px solid var(--border-color);
  padding: 40px 0 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}
.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 14px;
  color: var(--text-primary);
}
.footer-col p, .footer-col a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 2;
  display: block;
}
.footer-col a:hover { color: var(--primary); }
.footer-qr { display: flex; gap: 20px; margin-top: 10px; }
.footer-qr img { width: 100px; height: 100px; border-radius: var(--radius-sm); }
.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ========== Lazy Load ========== */
.lazy { opacity: 0; transition: opacity 0.5s ease; }
.lazy.loaded { opacity: 1; }

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .hero-content { flex-direction: column; text-align: center; }
  .hero-image { flex: 0 0 auto; width: 100%; max-width: 300px; }
  .hero-text h1 { font-size: 1.8rem; }
  .hero-tags { justify-content: center; }
  .main-nav { display: none; }
  .main-nav.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border-color);
    padding: 10px;
  }
  .mobile-menu-btn { display: block; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .section-padding { padding: 40px 0; }
  .hero-banner { padding: 40px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
}

/* ========== Animations ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* ========== Channel Page Styles ========== */
.channel-hero {
  background: var(--gradient-hero);
  padding: 40px 0;
  text-align: center;
}
.channel-hero h1 {
  font-size: 2rem;
  margin-bottom: 10px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.channel-hero p { color: var(--text-secondary); max-width: 600px; margin: 0 auto; }
.channel-stats {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-top: 20px;
}
.stat-item { text-align: center; }
.stat-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); }