/* ==========================================
   草榴 - 原创设计样式表
   主题：影视传媒+视频社区
   颜色：粉紫色系 + 深灰色
   ========================================== */

:root {
  --primary-pink: #FF1493;
  --secondary-purple: #9370DB;
  --accent-light: #FFB6D9;
  --dark-bg: #1a1a2e;
  --light-bg: #f8f9fa;
  --text-dark: #2c2c2c;
  --text-light: #666;
  --border-color: #e0e0e0;
  --shadow: 0 4px 12px rgba(255, 20, 147, 0.15);
  --shadow-hover: 0 8px 24px rgba(147, 112, 219, 0.25);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
  background-color: #fff;
  color: var(--text-dark);
  line-height: 1.6;
}

/* ==================== 头部导航 ==================== */
header {
  background: linear-gradient(135deg, var(--dark-bg) 0%, #2d1b4e 100%);
  color: white;
  padding: 15px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: bold;
  text-decoration: none;
  color: white;
  transition: transform 0.3s;
}

.logo:hover {
  transform: scale(1.05);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-pink), var(--secondary-purple));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 30px;
  align-items: center;
  flex-wrap: wrap;
}

nav a {
  color: white;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s;
  position: relative;
}

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

nav a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-pink);
  transition: width 0.3s;
}

nav a:hover::after {
  width: 100%;
}

.search-box {
  position: relative;
  width: 220px;
}

.search-box input {
  width: 100%;
  padding: 10px 15px;
  border: none;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-dark);
  font-size: 13px;
  transition: all 0.3s;
}

.search-box input:focus {
  outline: none;
  background: white;
  box-shadow: 0 0 10px rgba(255, 20, 147, 0.3);
}

.search-box input::placeholder {
  color: #999;
}

/* ==================== Banner区域 ==================== */
.banner {
  background: linear-gradient(135deg, var(--primary-pink) 0%, var(--secondary-purple) 100%);
  color: white;
  padding: 80px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><pattern id="dots" x="0" y="0" width="50" height="50" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="2" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="1200" height="600" fill="url(%23dots)"/></svg>');
  opacity: 0.5;
}

.banner-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.banner h1 {
  font-size: 48px;
  margin-bottom: 20px;
  font-weight: 700;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.banner p {
  font-size: 18px;
  margin-bottom: 30px;
  opacity: 0.95;
}

.banner-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 30px;
  border: none;
  border-radius: 25px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: white;
  color: var(--primary-pink);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background: white;
  color: var(--primary-pink);
}

/* ==================== 内容区域 ==================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 60px 20px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 40px;
  text-align: center;
  color: var(--text-dark);
  position: relative;
  display: inline-block;
  width: 100%;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-pink), var(--secondary-purple));
}

/* ==================== 视频卡片 ==================== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
  margin-top: 40px;
}

.video-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s;
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.video-thumbnail {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: linear-gradient(135deg, var(--accent-light), var(--secondary-purple));
  overflow: hidden;
}

.video-thumbnail img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(255, 20, 147, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.3s;
  cursor: pointer;
}

.play-button::after {
  content: '▶';
  color: white;
  font-size: 24px;
  margin-left: 4px;
}

.video-card:hover .play-button {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.1);
}

.video-info {
  padding: 15px;
}

.video-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-dark);
  line-height: 1.4;
}

.video-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-light);
  margin-bottom: 10px;
}

.video-stats {
  display: flex;
  gap: 15px;
  font-size: 12px;
  color: var(--text-light);
}

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

/* ==================== 模块区域 ==================== */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.module-card {
  background: linear-gradient(135deg, var(--light-bg), white);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  transition: all 0.3s;
  border: 1px solid var(--border-color);
}

.module-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: var(--primary-pink);
}

.module-icon {
  font-size: 40px;
  margin-bottom: 15px;
}

.module-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--text-dark);
}

.module-card p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.5;
}

/* ==================== FAQ区域 ==================== */
.faq-container {
  max-width: 800px;
  margin: 40px auto;
}

.faq-item {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  transition: all 0.3s;
}

.faq-item:hover {
  border-color: var(--primary-pink);
  box-shadow: var(--shadow);
}

.faq-question {
  padding: 20px;
  background: var(--light-bg);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--text-dark);
  transition: all 0.3s;
}

.faq-question:hover {
  background: #f0f0f0;
}

.faq-toggle {
  font-size: 20px;
  transition: transform 0.3s;
}

.faq-item.active .faq-toggle {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s;
  color: var(--text-light);
}

.faq-item.active .faq-answer {
  padding: 20px;
  max-height: 500px;
}

/* ==================== 评论区域 ==================== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.review-card {
  background: white;
  padding: 25px;
  border-radius: 12px;
  border-left: 4px solid var(--primary-pink);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: all 0.3s;
}

.review-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 15px;
}

.review-avatar {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-pink), var(--secondary-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 18px;
}

.review-user {
  flex: 1;
}

.review-name {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 2px;
}

.review-time {
  font-size: 12px;
  color: var(--text-light);
}

.review-rating {
  color: #FFD700;
  margin-bottom: 10px;
  font-size: 14px;
}

.review-text {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.6;
}

/* ==================== 页脚 ==================== */
footer {
  background: var(--dark-bg);
  color: white;
  padding: 50px 20px 20px;
  margin-top: 60px;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h3 {
  margin-bottom: 20px;
  color: var(--accent-light);
  font-size: 16px;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 12px;
}

.footer-section a {
  color: #ccc;
  text-decoration: none;
  font-size: 13px;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: var(--accent-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 12px;
  color: #999;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: 15px;
  }

  nav ul {
    gap: 15px;
    width: 100%;
    justify-content: center;
  }

  .search-box {
    width: 100%;
  }

  .banner h1 {
    font-size: 32px;
  }

  .banner p {
    font-size: 16px;
  }

  .section-title {
    font-size: 24px;
  }

  .video-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
  }

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

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 480px) {
  .logo {
    font-size: 18px;
  }

  nav ul {
    gap: 10px;
  }

  nav a {
    font-size: 12px;
  }

  .banner {
    padding: 50px 15px;
    min-height: 350px;
  }

  .banner h1 {
    font-size: 24px;
  }

  .banner p {
    font-size: 14px;
  }

  .banner-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

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

  section {
    padding: 40px 15px;
  }
}

/* ==================== 动画 ==================== */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-down {
  animation: fadeInDown 0.6s ease-out;
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}