/* style.css - 七七影院免费观看 */
:root {
  --primary: #e50914;
  --primary-dark: #b20710;
  --bg: #0f0f0f;
  --card-bg: rgba(255,255,255,0.06);
  --glass: rgba(255,255,255,0.08);
  --text: #fff;
  --text2: #aaa;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --transition: 0.3s ease;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #ff6b6b;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

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

/* 毛玻璃效果 */
.glass {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
}

/* 头部 */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15,15,15,0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 0 20px;
  transition: background var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, #e50914, #ff6b6b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav a {
  font-size: 0.95rem;
  color: var(--text2);
  padding: 6px 0;
  position: relative;
  transition: color 0.2s;
}

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

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

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

.menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 4px;
}

/* 首页横幅 - 渐变背景 */
#home {
  padding-top: 80px;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(ellipse at 30% 20%, rgba(229,9,20,0.12) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 80%, rgba(255,107,107,0.08) 0%, transparent 60%);
}

.banner-content {
  max-width: 700px;
  padding: 40px 20px;
}

.banner-content h1 {
  font-size: 2.8rem;
  font-weight: 900;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff, #e50914);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.banner-content p {
  font-size: 1.15rem;
  color: var(--text2);
  margin-bottom: 32px;
  line-height: 1.8;
}

.search-box {
  display: flex;
  max-width: 520px;
  margin: 0 auto;
  gap: 0;
  border-radius: 50px;
  overflow: hidden;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
}

.search-box input {
  flex: 1;
  padding: 14px 22px;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1rem;
  outline: none;
}

.search-box input::placeholder {
  color: var(--text2);
}

.search-box button {
  padding: 14px 28px;
  background: var(--primary);
  border: none;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.search-box button:hover {
  background: var(--primary-dark);
}

/* 通用板块 */
.section {
  padding: 64px 0;
}

.section-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-title span {
  background: var(--primary);
  width: 4px;
  height: 28px;
  border-radius: 4px;
  display: inline-block;
}

/* 网格卡片 */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.04);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.card-img {
  position: relative;
  aspect-ratio: 2 / 3;
  overflow: hidden;
  background: #1a1a1a;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.card:hover .card-img img {
  transform: scale(1.05);
}

.card-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
}

.card-body {
  padding: 14px 16px 18px;
}

.card-body h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-body p {
  font-size: 0.85rem;
  color: var(--text2);
}

/* 排行榜 */
.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ranking-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  background: var(--card-bg);
  border-radius: 12px;
  transition: background 0.2s;
}

.ranking-item:hover {
  background: rgba(255,255,255,0.1);
}

.rank-num {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: 800;
  font-size: 1.1rem;
  background: var(--primary);
  color: #fff;
  flex-shrink: 0;
}

.rank-num.gold {
  background: linear-gradient(135deg, #f5af19, #f12711);
}

.rank-num.silver {
  background: linear-gradient(135deg, #bdc3c7, #2c3e50);
}

.rank-num.bronze {
  background: linear-gradient(135deg, #cd7f32, #8b4513);
}

.rank-info {
  flex: 1;
}

.rank-info h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.rank-info p {
  font-size: 0.85rem;
  color: var(--text2);
}

.rank-score {
  font-weight: 700;
  color: var(--primary);
  font-size: 1.05rem;
}

/* 分类标签 */
.category-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.category-tag {
  padding: 10px 24px;
  background: var(--card-bg);
  border-radius: 50px;
  font-size: 0.95rem;
  color: var(--text2);
  border: 1px solid rgba(255,255,255,0.06);
  transition: all 0.2s;
  cursor: pointer;
}

.category-tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* FAQ 手风琴 */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 20px 24px;
  cursor: pointer;
  transition: background 0.2s;
}

.faq-item:hover {
  background: rgba(255,255,255,0.08);
}

.faq-question {
  font-weight: 600;
  font-size: 1.05rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding-top: 12px;
  color: var(--text2);
  display: none;
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  display: block;
}

/* 标签云 */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  padding: 20px 0;
}

.tag-cloud a {
  padding: 6px 16px;
  background: var(--card-bg);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--text2);
  transition: all 0.2s;
}

.tag-cloud a:hover {
  background: var(--primary);
  color: #fff;
}

/* 友情链接 */
.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  padding: 20px 0;
}

.friend-links a {
  color: var(--text2);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.friend-links a:hover {
  color: var(--primary);
}

/* 面包屑 */
.breadcrumb {
  padding: 12px 0;
  font-size: 0.9rem;
  color: var(--text2);
}

.breadcrumb a {
  color: var(--text2);
}

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

.breadcrumb span {
  margin: 0 6px;
  color: #555;
}

/* 页脚 */
.footer {
  background: rgba(0,0,0,0.4);
  padding: 48px 0 32px;
  margin-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}

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

.footer-col a {
  display: block;
  padding: 4px 0;
  color: var(--text2);
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  color: var(--text2);
  font-size: 0.85rem;
}

/* 返回顶部按钮 */
.back-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(229,9,20,0.3);
  transition: transform 0.2s, opacity 0.2s;
  opacity: 0;
  pointer-events: none;
  z-index: 999;
}

.back-top.show {
  opacity: 1;
  pointer-events: auto;
}

.back-top:hover {
  transform: scale(1.1);
}

/* 暗色模式切换按钮 */
.dark-mode-toggle {
  position: fixed;
  bottom: 30px;
  left: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--glass);
  backdrop-filter: blur(12px);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.1);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: background 0.2s;
}

.dark-mode-toggle:hover {
  background: rgba(255,255,255,0.15);
}

/* 介绍文字 */
.intro-text {
  max-width: 860px;
  margin: 0 auto;
  color: var(--text2);
  font-size: 1rem;
  line-height: 2;
  padding: 20px 0;
}

.intro-text p {
  margin-bottom: 16px;
}

.intro-text strong {
  color: var(--text);
}

/* 响应式 - 平板及以下 */
@media (max-width: 768px) {
  .nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(15,15,15,0.98);
    backdrop-filter: blur(24px);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }

  .nav.open {
    display: flex;
  }

  .menu-btn {
    display: block;
  }

  .banner-content h1 {
    font-size: 2rem;
  }

  .grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .back-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }

  .dark-mode-toggle {
    bottom: 20px;
    left: 20px;
    width: 40px;
    height: 40px;
  }
}

/* 响应式 - 手机 */
@media (max-width: 480px) {
  .banner-content h1 {
    font-size: 1.6rem;
  }

  .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .card-body {
    padding: 10px 12px 14px;
  }

  .search-box input {
    padding: 12px 16px;
  }

  .search-box button {
    padding: 12px 18px;
  }
}