/* ============================================
   肉丝足交影视传媒 - 原创样式表
   品牌：肉丝足交 | 域名：06677.com.cn
   配色：深紫黑 + 活力橙 + 电光紫
   ============================================ */

/* === CSS Variables === */
:root {
  --primary-dark: #1A0A2E;
  --accent-orange: #FF6B35;
  --accent-purple: #7B2FF7;
  --bg-deep: #0D0D1A;
  --text-light: #E8E6F0;
  --mint-green: #2DD4BF;
  --gradient-main: linear-gradient(135deg, #7B2FF7, #FF6B35);
  --gradient-dark: linear-gradient(180deg, #1A0A2E, #0D0D1A);
  --gradient-card: linear-gradient(145deg, #1e1235, #150d28);
  --shadow-purple: 0 4px 24px rgba(123, 47, 247, 0.15);
  --shadow-orange: 0 4px 24px rgba(255, 107, 53, 0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --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: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-deep);
  color: var(--text-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--mint-green); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-orange); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
}

/* === Container === */
.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }
.container-wide { max-width: 1440px; margin: 0 auto; padding: 0 20px; }

/* === Header & Navigation === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(13, 13, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(123, 47, 247, 0.2);
  transition: var(--transition);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: 1440px;
  margin: 0 auto;
}
.site-logo { display: flex; align-items: center; gap: 10px; }
.site-logo img { height: 42px; width: auto; }
.site-logo span {
  font-size: 1.4rem;
  font-weight: 800;
  background: var(--gradient-main);
  -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-light);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}
.main-nav a:hover, .main-nav a.active {
  color: #fff;
  background: rgba(123, 47, 247, 0.15);
}
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--gradient-main);
  border-radius: 2px;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-light);
  border-radius: 2px;
  transition: var(--transition);
}

/* === Search Bar === */
.search-bar-wrap {
  background: rgba(26, 10, 46, 0.6);
  padding: 14px 0;
  border-bottom: 1px solid rgba(123, 47, 247, 0.1);
  margin-top: 66px;
}
.search-bar {
  display: flex;
  max-width: 680px;
  margin: 0 auto;
  position: relative;
}
.search-bar input {
  flex: 1;
  padding: 12px 20px;
  border: 2px solid rgba(123, 47, 247, 0.3);
  border-radius: 50px 0 0 50px;
  background: rgba(13, 13, 26, 0.8);
  color: var(--text-light);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}
.search-bar input:focus { border-color: var(--accent-purple); }
.search-bar input::placeholder { color: rgba(232, 230, 240, 0.4); }
.search-bar button {
  padding: 12px 28px;
  background: var(--gradient-main);
  border: none;
  border-radius: 0 50px 50px 0;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.search-bar button:hover { opacity: 0.9; transform: scale(1.02); }

/* === Hero Section === */
.hero-section {
  position: relative;
  min-height: 75vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background-size: cover;
  background-position: center;
  filter: brightness(0.4);
}
.hero-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(180deg, rgba(13,13,26,0.3) 0%, rgba(13,13,26,0.85) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 60px 20px;
}
.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 16px;
  line-height: 1.2;
}
.hero-content h1 .brand-highlight {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content p {
  font-size: 1.15rem;
  color: rgba(232, 230, 240, 0.85);
  margin-bottom: 30px;
  max-width: 560px;
}
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.hero-tags span {
  padding: 6px 16px;
  background: rgba(123, 47, 247, 0.2);
  border: 1px solid rgba(123, 47, 247, 0.3);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--text-light);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--gradient-main);
  color: #fff;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-purple);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(123, 47, 247, 0.3);
  color: #fff;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: transparent;
  color: var(--text-light);
  border: 2px solid rgba(123, 47, 247, 0.5);
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-secondary:hover {
  background: rgba(123, 47, 247, 0.15);
  border-color: var(--accent-purple);
  color: #fff;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

/* === Section Common === */
.section {
  padding: 80px 0;
  position: relative;
}
.section-header {
  text-align: center;
  margin-bottom: 50px;
}
.section-header h2 {
  font-size: 2.2rem;
  margin-bottom: 12px;
}
.section-header .subtitle {
  color: rgba(232, 230, 240, 0.6);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}
.section-divider {
  width: 60px;
  height: 4px;
  background: var(--gradient-main);
  border-radius: 2px;
  margin: 16px auto 0;
}
.section-alt { background: rgba(26, 10, 46, 0.3); }

/* === Video Card Grid === */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(123, 47, 247, 0.12);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-purple);
  border-color: rgba(123, 47, 247, 0.3);
}
.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: var(--transition);
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.video-play-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 60px; height: 60px;
  background: rgba(123, 47, 247, 0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  z-index: 3;
}
.video-play-btn::after {
  content: '';
  width: 0; height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
  margin-left: 4px;
}
.video-card:hover .video-play-btn { opacity: 1; }
.video-duration {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
}
.video-info { padding: 16px; }
.video-info h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.82rem;
  color: rgba(232, 230, 240, 0.5);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(123, 47, 247, 0.15);
  border-radius: 50px;
  font-size: 0.75rem;
  color: var(--accent-purple);
  margin-top: 8px;
}

/* === Expert Cards === */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 30px;
  text-align: center;
  border: 1px solid rgba(123, 47, 247, 0.12);
  transition: var(--transition);
}
.expert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-purple);
}
.expert-avatar {
  width: 100px; height: 100px;
  border-radius: 50%;
  margin: 0 auto 16px;
  overflow: hidden;
  border: 3px solid rgba(123, 47, 247, 0.3);
}
.expert-avatar img { width: 100%; height: 100%; object-fit: cover; }
.expert-card h4 { font-size: 1.15rem; margin-bottom: 4px; }
.expert-role {
  color: var(--accent-orange);
  font-size: 0.9rem;
  margin-bottom: 12px;
}
.expert-desc {
  font-size: 0.88rem;
  color: rgba(232, 230, 240, 0.6);
  margin-bottom: 16px;
  line-height: 1.6;
}
.expert-btns { display: flex; gap: 10px; justify-content: center; }
.expert-btns a {
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 500;
}
.btn-sm-primary {
  background: var(--gradient-main);
  color: #fff;
}
.btn-sm-outline {
  border: 1px solid rgba(123, 47, 247, 0.4);
  color: var(--text-light);
}
.btn-sm-outline:hover { background: rgba(123, 47, 247, 0.15); color: #fff; }

/* === FAQ Section === */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1px solid rgba(123, 47, 247, 0.12);
  overflow: hidden;
}
.faq-question {
  padding: 18px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
}
.faq-question:hover { background: rgba(123, 47, 247, 0.08); }
.faq-arrow {
  width: 20px; height: 20px;
  transition: var(--transition);
  flex-shrink: 0;
  margin-left: 12px;
}
.faq-arrow::before {
  content: '+';
  font-size: 1.4rem;
  color: var(--accent-purple);
}
.faq-item.active .faq-arrow::before { content: '-'; }
.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  color: rgba(232, 230, 240, 0.7);
  font-size: 0.95rem;
  line-height: 1.7;
}
.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 24px 18px;
}

/* === Reviews === */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid rgba(123, 47, 247, 0.12);
}
.review-stars { color: var(--accent-orange); font-size: 1rem; margin-bottom: 12px; letter-spacing: 2px; }
.review-text {
  font-size: 0.95rem;
  color: rgba(232, 230, 240, 0.75);
  margin-bottom: 16px;
  line-height: 1.7;
  font-style: italic;
}
.review-author { display: flex; align-items: center; gap: 12px; }
.review-author-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
}
.review-author-info h5 { font-size: 0.9rem; margin-bottom: 2px; }
.review-author-info span { font-size: 0.8rem; color: rgba(232, 230, 240, 0.5); }

/* === Partner Logos === */
.partner-wall {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  align-items: center;
}
.partner-logo {
  padding: 16px 28px;
  background: rgba(26, 10, 46, 0.5);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(123, 47, 247, 0.1);
  font-size: 1.1rem;
  font-weight: 600;
  color: rgba(232, 230, 240, 0.5);
  transition: var(--transition);
}
.partner-logo:hover {
  color: var(--text-light);
  border-color: rgba(123, 47, 247, 0.3);
}

/* === How-To Guide === */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 24px;
  counter-reset: step;
}
.howto-step {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 30px;
  border: 1px solid rgba(123, 47, 247, 0.12);
  position: relative;
  counter-increment: step;
}
.howto-step::before {
  content: counter(step);
  position: absolute;
  top: -12px; left: 24px;
  width: 36px; height: 36px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
}
.howto-step h4 { margin-bottom: 10px; font-size: 1.05rem; }
.howto-step p { font-size: 0.9rem; color: rgba(232, 230, 240, 0.65); }

/* === Contact Section === */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.contact-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid rgba(123, 47, 247, 0.12);
  text-align: center;
}
.contact-card h4 { margin-bottom: 12px; font-size: 1.05rem; }
.contact-card p {
  font-size: 0.9rem;
  color: rgba(232, 230, 240, 0.65);
  line-height: 1.7;
}
.contact-card img { max-width: 160px; margin: 12px auto; border-radius: var(--radius-sm); }

/* === Social Share === */
.share-bar {
  display: flex;
  justify-content: center;
  gap: 16px;
  padding: 20px 0;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 0.88rem;
  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: #00A1D6; }

/* === Footer === */
.site-footer {
  background: var(--primary-dark);
  border-top: 1px solid rgba(123, 47, 247, 0.15);
  padding: 50px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p {
  font-size: 0.9rem;
  color: rgba(232, 230, 240, 0.55);
  margin-top: 12px;
  line-height: 1.7;
}
.footer-col h5 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: #fff;
}
.footer-col a {
  display: block;
  padding: 4px 0;
  font-size: 0.88rem;
  color: rgba(232, 230, 240, 0.55);
}
.footer-col a:hover { color: var(--accent-orange); }
.footer-qr {
  display: flex;
  gap: 20px;
  margin-top: 16px;
}
.footer-qr-item { text-align: center; }
.footer-qr-item img { width: 100px; border-radius: var(--radius-sm); margin-bottom: 6px; }
.footer-qr-item span { font-size: 0.78rem; color: rgba(232, 230, 240, 0.5); }
.footer-bottom {
  border-top: 1px solid rgba(123, 47, 247, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(232, 230, 240, 0.4);
}

/* === Breadcrumb === */
nav.breadcrumb {
  background: rgba(26, 10, 46, 0.5);
  border-bottom: 1px solid rgba(123, 47, 247, 0.1);
  margin-top: 80px;
}
nav.breadcrumb .container {
  padding: 14px 20px;
  font-size: 0.88rem;
  color: rgba(232, 230, 240, 0.5);
}
.breadcrumb {
  padding: 16px 0;
  font-size: 0.88rem;
  color: rgba(232, 230, 240, 0.5);
}
.breadcrumb a { color: rgba(232, 230, 240, 0.6); transition: var(--transition); }
.breadcrumb a:hover { color: var(--accent-orange); }
.breadcrumb span { margin: 0 6px; }

/* === Category Modules === */
.category-section { padding: 40px 0; }
.category-section h3 {
  font-size: 1.5rem;
  margin-bottom: 20px;
  padding-left: 16px;
  border-left: 4px solid var(--accent-purple);
}

/* === Content Article === */
.article-content {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px;
}
.article-content h2 { font-size: 1.8rem; margin-bottom: 20px; }
.article-content p {
  margin-bottom: 16px;
  font-size: 1rem;
  color: rgba(232, 230, 240, 0.8);
  line-height: 1.8;
}

/* === Stats Bar === */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 40px 0;
}
.stat-item {
  text-align: center;
  padding: 24px;
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  border: 1px solid rgba(123, 47, 247, 0.12);
}
.stat-num {
  font-size: 2.4rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 0.9rem;
  color: rgba(232, 230, 240, 0.55);
  margin-top: 4px;
}

/* === Lazy Load Placeholder === */
.lazy-img {
  background: rgba(26, 10, 46, 0.5);
  transition: opacity 0.5s ease;
}
.lazy-img[data-src] { opacity: 0.5; }
.lazy-img.loaded { opacity: 1; }

/* === Responsive === */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(13, 13, 26, 0.98);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid rgba(123, 47, 247, 0.2);
  }
  .main-nav.active { display: flex; }
  .main-nav a { padding: 12px 16px; width: 100%; }
  .hero-content h1 { font-size: 2rem; }
  .hero-content p { font-size: 1rem; }
  .section-header h2 { font-size: 1.7rem; }
  .video-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .hero-btns { flex-direction: column; }
  .share-bar { flex-wrap: wrap; }
  .search-bar { margin: 0 16px; }
  .howto-steps { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.6rem; }
  .stats-bar { grid-template-columns: 1fr; }
  .section { padding: 50px 0; }
}

/* === Animations === */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* === MCP Service Frontend (Placeholder) === */
.mcp-service {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid rgba(123, 47, 247, 0.12);
  text-align: center;
  margin-top: 20px;
}
.mcp-service h5 { margin-bottom: 10px; }
.mcp-service .mcp-status {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(45, 212, 191, 0.15);
  color: var(--mint-green);
  border-radius: 50px;
  font-size: 0.82rem;
}