/* ============================================
   在线看片 - 游戏解说视频社区 原创样式表
   域名: dvkdo37.cn
   主题: 电竞蓝金暗色系
   ============================================ */

/* === 基础重置与变量 === */
:root {
  --primary: #1a8cff;
  --primary-dark: #0d6ecc;
  --accent: #f0b429;
  --accent-light: #ffd666;
  --bg-dark: #0b0e17;
  --bg-card: #131829;
  --bg-section: #0f1322;
  --bg-hover: #1a2040;
  --text-main: #e0e6f0;
  --text-muted: #8892a8;
  --text-bright: #ffffff;
  --border-color: #1e2a4a;
  --gradient-blue: linear-gradient(135deg, #1a8cff 0%, #6c5ce7 100%);
  --gradient-gold: linear-gradient(135deg, #f0b429 0%, #ff6b35 100%);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 20px rgba(26,140,255,0.3);
  --radius: 10px;
  --radius-lg: 16px;
  --transition: all 0.3s ease;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--accent);
}

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

ul, ol {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* === 顶部导航栏 === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(11,14,23,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(11,14,23,0.98);
  box-shadow: 0 2px 30px rgba(0,0,0,0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-logo img {
  height: 42px;
  width: auto;
}

.site-logo span {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: 1px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a {
  padding: 8px 14px;
  font-size: 0.92rem;
  color: var(--text-muted);
  border-radius: 6px;
  transition: var(--transition);
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-bright);
  background: var(--bg-hover);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* === Hero Banner === */
.hero-banner {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 68px;
  overflow: hidden;
}

.hero-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,14,23,0.3) 0%, rgba(11,14,23,0.85) 100%);
  z-index: 1;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 60px 20px;
  max-width: 800px;
}

.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--text-bright);
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
  line-height: 1.3;
}

.hero-content h1 em {
  font-style: normal;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content .hero-desc {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 30px;
  line-height: 1.8;
}

.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  background: var(--gradient-blue);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(26,140,255,0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(26,140,255,0.6);
  color: #fff;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  background: transparent;
  color: var(--accent);
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  border: 2px solid var(--accent);
  cursor: pointer;
  transition: var(--transition);
}

.btn-outline:hover {
  background: var(--accent);
  color: var(--bg-dark);
  transform: translateY(-2px);
}

/* === 通用区块标题 === */
.section-title {
  text-align: center;
  margin-bottom: 45px;
}

.section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 12px;
}

.section-title h2 span {
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto;
}

/* === 视频卡片网格 === */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.video-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
  border-color: var(--primary);
}

.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.video-card:hover .video-thumb img {
  transform: scale(1.08);
}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 60px;
  height: 60px;
  background: rgba(26,140,255,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  box-shadow: 0 0 30px rgba(26,140,255,0.5);
}

.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;
  transform: translate(-50%, -50%) scale(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;
}

.video-info {
  padding: 16px;
}

.video-info h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.video-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* === 内容区块 === */
.section-block {
  padding: 70px 0;
}

.section-block:nth-child(even) {
  background: var(--bg-section);
}

/* === 特色模块网格 === */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  text-align: center;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  background: var(--gradient-blue);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* === 专家展示 === */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.expert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}

.expert-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  margin: 0 auto 14px;
  overflow: hidden;
  border: 3px solid var(--primary);
}

.expert-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.expert-card h4 {
  font-size: 1.05rem;
  color: var(--text-bright);
  margin-bottom: 6px;
}

.expert-card .expert-role {
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 8px;
}

.expert-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* === FAQ手风琴 === */
.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;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-bright);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--bg-hover);
}

.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary);
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  content: '−';
  color: var(--accent);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-inner {
  padding: 0 24px 18px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

/* === 用户评价 === */
.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
}

.review-card:hover {
  border-color: var(--accent);
}

.review-stars {
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.review-card blockquote {
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.7;
  margin-bottom: 14px;
  font-style: italic;
}

.review-author {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* === 社区模块 === */
.community-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.community-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: var(--transition);
}

.community-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
}

.cc-icon {
  width: 52px;
  height: 52px;
  min-width: 52px;
  background: var(--gradient-gold);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.community-card h4 {
  font-size: 1.1rem;
  color: var(--text-bright);
  margin-bottom: 8px;
}

.community-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* === 面包屑导航 === */
.breadcrumb {
  padding: 90px 0 20px;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.breadcrumb-list a {
  color: var(--text-muted);
}

.breadcrumb-list a:hover {
  color: var(--primary);
}

.breadcrumb-list .sep {
  color: var(--border-color);
}

.breadcrumb-list .current {
  color: var(--text-bright);
}

/* === 内页标题 === */
.page-hero {
  background: var(--bg-section);
  padding: 40px 0 50px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.page-hero h1 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* === 文章内容 === */
.content-area {
  padding: 50px 0;
}

.content-area h2 {
  font-size: 1.6rem;
  color: var(--text-bright);
  margin: 35px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border-color);
}

.content-area h3 {
  font-size: 1.3rem;
  color: var(--text-bright);
  margin: 25px 0 12px;
}

.content-area h4 {
  font-size: 1.1rem;
  color: var(--accent);
  margin: 20px 0 10px;
}

.content-area p {
  margin-bottom: 16px;
  color: var(--text-main);
  line-height: 1.8;
}

.content-area ul,
.content-area ol {
  margin: 12px 0 20px 24px;
}

.content-area li {
  margin-bottom: 8px;
  color: var(--text-main);
  list-style: disc;
}

.content-area ol li {
  list-style: decimal;
}

/* === 联系表单 === */
.contact-form {
  max-width: 640px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.95rem;
  color: var(--text-bright);
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-main);
  font-size: 0.95rem;
  transition: var(--transition);
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,140,255,0.15);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-submit {
  text-align: center;
}

/* === 页脚 === */
.site-footer {
  background: var(--bg-section);
  border-top: 1px solid var(--border-color);
  padding: 50px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 14px;
}

.footer-col h4 {
  font-size: 1rem;
  color: var(--text-bright);
  margin-bottom: 16px;
  font-weight: 600;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 4px 0;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-qr {
  display: flex;
  gap: 16px;
  margin-top: 10px;
}

.footer-qr img {
  width: 90px;
  height: 90px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 18px 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--text-muted);
}

.footer-bottom a:hover {
  color: var(--primary);
}

/* === 回到顶部 === */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--gradient-blue);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(26,140,255,0.4);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
}

/* === 标签 === */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--bg-hover);
  color: var(--text-muted);
  border-radius: 20px;
  font-size: 0.82rem;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.tag:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* === 统计数字 === */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 40px 0;
}

.stat-item {
  text-align: center;
  padding: 28px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* === 内页两栏布局 === */
.two-col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-widget h4 {
  font-size: 1.05rem;
  color: var(--text-bright);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-widget a {
  display: block;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(30,42,74,0.5);
}

.sidebar-widget a:hover {
  color: var(--primary);
}

/* === 干扰标签隐藏 === */
.noise-wrap {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* === 响应式 === */
@media (max-width: 1024px) {
  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .expert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .two-col {
    grid-template-columns: 1fr;
  }
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: var(--bg-dark);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    gap: 4px;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-content h1 {
    font-size: 1.8rem;
  }

  .hero-banner {
    min-height: 400px;
  }

  .video-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .expert-grid {
    grid-template-columns: 1fr;
  }

  .community-grid {
    grid-template-columns: 1fr;
  }

  .review-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .section-title h2 {
    font-size: 1.5rem;
  }

  .section-block {
    padding: 45px 0;
  }

  .hero-btns {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .header-inner {
    height: 56px;
  }

  .hero-banner {
    margin-top: 56px;
    min-height: 340px;
  }

  .hero-content h1 {
    font-size: 1.5rem;
  }

  .site-logo img {
    height: 32px;
  }

  .site-logo span {
    font-size: 1.1rem;
  }
}