/* ============================================
   黑料 - 原创品牌样式表
   影视传媒公司 + 视频社区
   yixuefang.cn
   ============================================ */

/* CSS Variables */
:root {
  --primary: #C41E3A;
  --primary-dark: #9B1730;
  --gold: #D4AF37;
  --gold-light: #F0D060;
  --dark: #1A1A2E;
  --dark-secondary: #16213E;
  --text-primary: #E8E8E8;
  --text-secondary: #B0B0B0;
  --bg-card: #1E2A3A;
  --bg-card-hover: #253545;
  --bg-body: #0F0F1A;
  --border-color: #2A3A4A;
  --shadow: 0 4px 20px rgba(0,0,0,0.3);
  --radius: 12px;
  --transition: all 0.3s ease;
}

/* 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-body);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--gold); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--gold-light); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; }

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 0 20px; }

/* ============ Header & Navigation ============ */
.site-header {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-secondary) 100%);
  border-bottom: 2px solid var(--primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(196,30,58,0.2);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  max-width: 1400px;
  margin: 0 auto;
}
.site-logo { display: flex; align-items: center; gap: 10px; }
.site-logo img { height: 48px; width: auto; }
.site-logo span {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 1px;
}
.main-nav { display: flex; align-items: center; gap: 0; }
.main-nav a {
  color: var(--text-primary);
  padding: 10px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 6px;
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  color: var(--gold);
  background: rgba(212,175,55,0.1);
}
.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(--dark-secondary);
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}
.search-bar .container { display: flex; align-items: center; gap: 12px; }
.search-bar .breadcrumb {
  font-size: 0.85rem;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.search-bar .breadcrumb a { color: var(--gold); }
.search-input-wrap {
  flex: 1;
  max-width: 500px;
  margin-left: auto;
  position: relative;
}
.search-input-wrap input {
  width: 100%;
  padding: 10px 44px 10px 16px;
  border: 1px solid var(--border-color);
  border-radius: 24px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}
.search-input-wrap input:focus { border-color: var(--gold); }
.search-input-wrap button {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 34px;
  height: 34px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: var(--transition);
}
.search-input-wrap button:hover { background: var(--primary-dark); }

/* ============ Hero Banner ============ */
.hero-section {
  position: relative;
  height: 520px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-section .ivn4l3 {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.6);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 20px;
}
.hero-content h1 {
  font-size: 3rem;
  color: #fff;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
  margin-bottom: 16px;
}
.hero-content h1 span { color: var(--gold); }
.hero-content p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.9);
  max-width: 700px;
  margin: 0 auto 24px;
  text-shadow: 0 1px 10px rgba(0,0,0,0.5);
}
.hero-tags { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.hero-tags span {
  background: rgba(196,30,58,0.7);
  color: #fff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  backdrop-filter: blur(4px);
}

/* ============ Section Styles ============ */
.section { padding: 60px 0; }
.section-alt { background: var(--dark-secondary); }
.section-title {
  text-align: center;
  margin-bottom: 40px;
}
.section-title h2 {
  font-size: 2rem;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.section-title h2 span { color: var(--primary); }
.section-title p {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}
.section-title .line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--gold));
  margin: 12px auto 0;
  border-radius: 2px;
}

/* ============ Video Cards Grid ============ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.video-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border-color);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(196,30,58,0.2);
  border-color: var(--primary);
}
.video-card .n0p47oi {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}
.video-card .n0p47oi img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .n0p47oi img { transform: scale(1.08); }
.video-card .play-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 56px; height: 56px;
  background: rgba(196,30,58,0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .play-btn { opacity: 1; }
.play-btn::after {
  content: '';
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
  margin-left: 3px;
}
.video-card .up4hqyb {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
}
.video-card .sd34e65z { padding: 14px; }
.video-card .sd34e65z h3 {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-card .57b73vn {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.video-card .57b73vn span { display: flex; align-items: center; gap: 4px; }
.video-card .jd7dvm { margin-top: 8px; display: flex; gap: 6px; flex-wrap: wrap; }
.video-card .jd7dvm span {
  background: rgba(212,175,55,0.15);
  color: var(--gold);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
}

/* ============ Feature Modules ============ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 30px 24px;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}
.feature-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.feature-card .91ske {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--gold));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.6rem;
}
.feature-card h3 { font-size: 1.1rem; margin-bottom: 10px; color: var(--text-primary); }
.feature-card p { font-size: 0.9rem; color: var(--text-secondary); }

/* ============ Expert Cards ============ */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.expert-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}
.expert-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}
.expert-card .xogyuk5 {
  width: 80px; height: 80px;
  border-radius: 50%;
  margin: 0 auto 12px;
  background: linear-gradient(135deg, var(--primary), var(--gold));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: #fff;
}
.expert-card h4 { font-size: 1rem; color: var(--text-primary); margin-bottom: 4px; }
.expert-card .ov7g6q { font-size: 0.8rem; color: var(--gold); margin-bottom: 8px; }
.expert-card p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 12px; }
.expert-card .btn-group { display: flex; gap: 8px; justify-content: center; }
.btn-sm {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.8rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--gold);
}
.btn-outline:hover { background: rgba(212,175,55,0.1); }

/* ============ 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);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-question {
  padding: 18px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--text-primary);
  transition: var(--transition);
}
.faq-question:hover { color: var(--gold); }
.faq-question .26zqsfk {
  transition: transform 0.3s;
  font-size: 0.8rem;
  color: var(--gold);
}
.faq-item.active .faq-question .26zqsfk { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 18px;
}

/* ============ Reviews ============ */
.review-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
}
.review-card .bwo4r { color: var(--gold); margin-bottom: 10px; font-size: 1rem; }
.review-card .duu45 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
  line-height: 1.7;
  font-style: italic;
}
.review-card .0d0u6 {
  display: flex;
  align-items: center;
  gap: 10px;
}
.review-card .79o2w {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
}
.review-card .ybuaj .707vhw { font-size: 0.9rem; color: var(--text-primary); font-weight: 600; }
.review-card .ybuaj .nbmdn24 { font-size: 0.75rem; color: var(--text-secondary); }

/* ============ Partner Logos ============ */
.partner-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  align-items: center;
}
.partner-wall .gkb2az {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px 28px;
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 600;
  transition: var(--transition);
}
.partner-wall .gkb2az:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ============ Contact Section ============ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}
.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 30px;
}
.contact-info-card h3 {
  font-size: 1.2rem;
  color: var(--gold);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}
.contact-info-card .6lbwzl {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.contact-info-card .6lbwzl strong { color: var(--text-primary); min-width: 70px; }
.qrcode-wrap {
  display: flex;
  gap: 30px;
  justify-content: center;
  margin-top: 20px;
}
.qrcode-item { text-align: center; }
.qrcode-item img { width: 160px; height: 160px; border-radius: 8px; margin-bottom: 8px; }
.qrcode-item p { font-size: 0.85rem; color: var(--text-secondary); }

/* ============ Social Share ============ */
.share-bar {
  display: flex;
  gap: 12px;
  justify-content: center;
  padding: 20px 0;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 24px;
  font-size: 0.85rem;
  color: #fff;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}
.share-btn:hover { transform: translateY(-2px); opacity: 0.9; }
.share-wechat { background: #07C160; }
.share-weibo { background: #E6162D; }
.share-douyin { background: #161823; border: 1px solid #FE2C55; }
.share-bilibili { background: #00A1D6; }

/* ============ Footer ============ */
.site-footer {
  background: linear-gradient(135deg, var(--dark) 0%, #0A0A14 100%);
  border-top: 2px solid var(--primary);
  padding: 50px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
}
.footer-brand p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.7; }
.footer-col h4 {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}
.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 4px 0;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--gold); padding-left: 6px; }
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 20px 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.footer-bottom a { color: var(--gold); }

/* ============ How-To Guide ============ */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.howto-step {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  position: relative;
  counter-increment: step;
}
.howto-step::before {
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  margin: 0 auto 12px;
}
.howto-step h4 { font-size: 1rem; color: var(--text-primary); margin-bottom: 8px; }
.howto-step p { font-size: 0.85rem; color: var(--text-secondary); }

/* ============ Video Detail Page ============ */
.video-player-wrap {
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 24px;
  aspect-ratio: 16/9;
}
.video-player-wrap video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.video-detail-info { padding: 20px 0; }
.video-detail-info h1 { font-size: 1.6rem; margin-bottom: 12px; }
.isal94f9 {
  display: flex;
  gap: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.isal94f9 span { display: flex; align-items: center; gap: 6px; }
.video-description {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 24px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.related-videos h3 { font-size: 1.2rem; margin-bottom: 16px; color: var(--text-primary); }

/* ============ Inner Page Layout ============ */
.page-banner {
  height: 300px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.page-banner img {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.5);
}
.page-banner .au8zj {
  position: relative;
  z-index: 2;
  text-align: center;
}
.page-banner h1 { font-size: 2.4rem; color: #fff; margin-bottom: 8px; }
.page-banner p { color: rgba(255,255,255,0.8); font-size: 1.1rem; }
.page-content { padding: 50px 0; }
.page-content p { margin-bottom: 16px; color: var(--text-secondary); line-height: 1.8; }

/* ============ Danmaku Simulation ============ */
.danmaku-container {
  position: relative;
  overflow: hidden;
  height: 40px;
  background: rgba(0,0,0,0.3);
  border-radius: 8px;
  margin: 16px 0;
}
.danmaku-item {
  position: absolute;
  white-space: nowrap;
  color: #fff;
  font-size: 0.85rem;
  animation: danmaku-scroll 12s linear infinite;
  top: 50%;
  transform: translateY(-50%);
}
@keyframes danmaku-scroll {
  0% { left: 100%; }
  100% { left: -100%; }
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(3, 1fr); }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .howto-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--dark);
    padding: 16px;
    border-bottom: 2px solid var(--primary);
    z-index: 999;
  }
  .mobile-menu-btn { display: block; }
  .video-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .feature-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-section { height: 380px; }
  .hero-content h1 { font-size: 2rem; }
  .section { padding: 40px 0; }
  .section-title h2 { font-size: 1.5rem; }
  .expert-grid { grid-template-columns: 1fr; }
  .howto-steps { grid-template-columns: 1fr; }
  .share-bar { flex-wrap: wrap; }
  .qrcode-wrap { flex-direction: column; align-items: center; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .hero-section { height: 300px; }
  .hero-content h1 { font-size: 1.6rem; }
  .header-inner { padding: 8px 12px; }
  .site-logo span { font-size: 1.1rem; }
}

/* ============ Lazy Load ============ */
img[loading="lazy"] { opacity: 0; transition: opacity 0.3s; }
img[loading="lazy"].loaded, img[loading="lazy"][src] { opacity: 1; }

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


/* ============ EEAT Author Info ============ */
.video-eeat-info {
  background: rgba(196, 30, 58, 0.1);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 16px 20px;
  margin: 16px 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.8;
}
.video-eeat-info p { margin-bottom: 4px; }
.video-eeat-info strong { color: var(--text-primary); }

/* ============ Video Description Headings ============ */
.video-description h3 {
  font-size: 1.1rem;
  color: var(--gold);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}
.video-detail-info h3 {
  font-size: 1.4rem;
  color: var(--text-primary);
  margin-bottom: 12px;
}

/* ============ Video Tags in Cards ============ */
.video-card .jd7dvm {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.video-card .jd7dvm span {
  background: rgba(196, 30, 58, 0.2);
  color: var(--primary);
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 10px;
  border: 1px solid rgba(196, 30, 58, 0.3);
}

/* ============ Button Styles ============ */
.btn-sm {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  transition: var(--transition);
  text-align: center;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
}
.btn-outline {
  border: 1px solid var(--gold);
  color: var(--gold);
  background: transparent;
}
.btn-outline:hover {
  background: var(--gold);
  color: var(--dark);
}
.btn-group {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}