/* ============================================
   乐玩小游戏 - 前台主样式
   现代化设计系统 / 专业高级风格
   ============================================ */

:root {
  /* 主色调 */
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --primary-bg: #eef2ff;
  --secondary: #ec4899;
  --secondary-dark: #db2777;

  /* 功能色 */
  --success: #10b981;
  --success-bg: #d1fae5;
  --warning: #f59e0b;
  --warning-bg: #fef3c7;
  --danger: #ef4444;
  --danger-bg: #fee2e2;
  --info: #3b82f6;
  --info-bg: #dbeafe;

  /* 中性色 */
  --bg: #f8fafc;
  --bg-alt: #f1f5f9;
  --card: #ffffff;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --text: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --text-white: #ffffff;

  /* 阴影 */
  --shadow-xs: 0 1px 2px rgba(0,0,0,.05);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.08), 0 2px 4px -1px rgba(0,0,0,.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.08), 0 4px 6px -2px rgba(0,0,0,.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1), 0 10px 10px -5px rgba(0,0,0,.04);
  --shadow-glow: 0 0 20px rgba(99,102,241,.3);

  /* 圆角 */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* 过渡 */
  --transition: all .25s cubic-bezier(.4,0,.2,1);
  --transition-fast: all .15s cubic-bezier(.4,0,.2,1);

  /* 间距 */
  --header-height: 64px;
  --max-width: 1280px;
}

/* ============================================
   基础重置
   ============================================ */

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

html { font-size: 16px; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul,ol { list-style: none; }

button { cursor: pointer; border: none; font-family: inherit; }
input,textarea,select { font-family: inherit; font-size: inherit; outline: none; }

/* ============================================
   通用容器
   ============================================ */

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

.section { padding: 28px 0; }

.section-title {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 18px;
}
.section-title h2 {
  font-size: 1.3rem; font-weight: 700; color: var(--text);
  display: flex; align-items: center; gap: 8px;
}
.section-title h2::before {
  content: ''; width: 4px; height: 22px; border-radius: 2px;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
}
.section-title .more { font-size: .875rem; color: var(--text-muted); }
.section-title .more:hover { color: var(--primary); }

/* ============================================
   头部导航
   ============================================ */

.site-header {
  position: sticky; top: 0; z-index: 1000;
  height: var(--header-height);
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--max-width); height: 100%; margin: 0 auto;
  padding: 0 16px;
  display: flex; align-items: center; gap: 12px;
}

.logo { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.logo-icon {
  width: 38px; height: 38px; border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.3rem; font-weight: 800;
  box-shadow: var(--shadow-glow);
}
.logo-text { font-size: 1.25rem; font-weight: 800; color: var(--text); }
.logo-text span { color: var(--primary); }

.nav-menu { display: flex; align-items: center; gap: 2px; flex: 1; flex-wrap: nowrap; overflow: hidden; }
.nav-item { flex-shrink: 0; }
.nav-item a {
  padding: 6px 8px; border-radius: var(--radius-sm);
  font-size: .82rem; font-weight: 500; color: var(--text-secondary);
  transition: var(--transition-fast); white-space: nowrap;
}
.nav-item a:hover, .nav-item a.active {
  color: var(--primary); background: var(--primary-bg);
}

.header-search {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-alt); border: 1px solid var(--border);
  border-radius: var(--radius-full); padding: 4px 4px 4px 16px;
  width: 260px; transition: var(--transition);
}
.header-search:focus-within {
  border-color: var(--primary-light); box-shadow: 0 0 0 3px var(--primary-bg);
}
.header-search input {
  border: none; background: none; flex: 1; font-size: .875rem;
  color: var(--text);
}
.header-search button {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem; transition: var(--transition-fast);
}
.header-search button:hover { background: var(--primary-dark); }

.header-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 18px; border-radius: var(--radius-sm);
  font-size: .875rem; font-weight: 600;
  transition: var(--transition-fast); white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; box-shadow: var(--shadow-sm);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-bg); }
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: var(--bg-alt); color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: .8rem; }
.btn-lg { padding: 12px 28px; font-size: 1rem; }
.btn-block { width: 100%; }

/* 头像 */
.avatar-img {
  width: 36px; height: 36px; border-radius: 50%;
  object-fit: cover; border: 2px solid var(--border);
}
.avatar-sm { width: 28px; height: 28px; }
.avatar-lg { width: 80px; height: 80px; }
.avatar-xl { width: 120px; height: 120px; }

.user-dropdown { position: relative; }
.user-dropdown-trigger {
  display: flex; align-items: center; gap: 6px;
  padding: 4px 12px 4px 4px; border-radius: var(--radius-full);
  cursor: pointer; transition: var(--transition-fast);
}
.user-dropdown-trigger:hover { background: var(--bg-alt); }
.user-dropdown-trigger .username { font-size: .875rem; font-weight: 500; color: var(--text); }
.user-dropdown-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 180px; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 8px 0;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: var(--transition);
}
.user-dropdown:hover .user-dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.user-dropdown-menu a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px; font-size: .875rem; color: var(--text);
  border-left: 3px solid transparent;
}
.user-dropdown-menu a:hover { background: var(--primary-bg); color: var(--primary); border-color: var(--primary); }
.user-dropdown-menu .divider { height: 1px; background: var(--border); margin: 4px 0; }

/* ============================================
   轮播图
   ============================================ */

.banner-container {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-md); margin-bottom: 28px;
}
.banner-track { display: flex; transition: transform .5s cubic-bezier(.4,0,.2,1); }
.banner-slide {
  flex: 0 0 100%; height: 360px; position: relative;
  display: flex; align-items: center; justify-content: center;
}
.banner-slide:nth-child(1) { background: linear-gradient(135deg, #667eea, #764ba2); }
.banner-slide:nth-child(2) { background: linear-gradient(135deg, #f093fb, #f5576c); }
.banner-slide:nth-child(3) { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.banner-slide:nth-child(4) { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.banner-slide-content {
  text-align: center; color: #fff; padding: 0 20px;
}
.banner-slide-content h2 { font-size: 2.5rem; font-weight: 800; margin-bottom: 12px; text-shadow: 0 2px 8px rgba(0,0,0,.2); }
.banner-slide-content p { font-size: 1.1rem; opacity: .9; margin-bottom: 20px; }
.banner-dots { position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; }
.banner-dots span {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,.5); cursor: pointer; transition: var(--transition);
}
.banner-dots span.active { background: #fff; width: 30px; border-radius: 5px; }
.banner-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,.2); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.2rem; cursor: pointer;
  transition: var(--transition); opacity: .7;
}
.banner-arrow:hover { background: rgba(255,255,255,.35); opacity: 1; }
.banner-arrow.prev { left: 16px; }
.banner-arrow.next { right: 16px; }

/* ============================================
   分类导航
   ============================================ */

.category-nav {
  display: flex; gap: 12px; padding: 16px 0; overflow-x: auto;
  margin-bottom: 8px;
}
.category-nav::-webkit-scrollbar { height: 4px; }
.category-nav::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.category-item {
  flex-shrink: 0; display: flex; flex-direction: column;
  align-items: center; gap: 8px; padding: 14px 20px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); transition: var(--transition);
  min-width: 90px; text-align: center;
}
.category-item:hover {
  transform: translateY(-3px); border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
}
.category-item .cat-icon {
  width: 42px; height: 42px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; color: #fff;
}
.category-item:nth-child(1) .cat-icon { background: linear-gradient(135deg, #667eea, #764ba2); }
.category-item:nth-child(2) .cat-icon { background: linear-gradient(135deg, #f093fb, #f5576c); }
.category-item:nth-child(3) .cat-icon { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.category-item:nth-child(4) .cat-icon { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.category-item:nth-child(5) .cat-icon { background: linear-gradient(135deg, #fa709a, #fee140); }
.category-item:nth-child(6) .cat-icon { background: linear-gradient(135deg, #30cfd0, #330867); }
.category-item:nth-child(7) .cat-icon { background: linear-gradient(135deg, #a8edea, #fed6e3); }
.category-item:nth-child(8) .cat-icon { background: linear-gradient(135deg, #ff9a9e, #fecfef); }
.category-item:nth-child(9) .cat-icon { background: linear-gradient(135deg, #ffecd2, #fcb69f); }
.category-item:nth-child(10) .cat-icon { background: linear-gradient(135deg, #84fab0, #8fd3f4); }
.category-item .cat-name { font-size: .8rem; font-weight: 500; color: var(--text); }

/* ============================================
   游戏卡片
   ============================================ */

.game-grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}
.game-grid.cols-5 { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }

.game-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: var(--transition); position: relative;
}
.game-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}
.game-card-cover {
  position: relative; aspect-ratio: 4/3; overflow: hidden;
  background: var(--bg-alt);
}
.game-card-cover img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s cubic-bezier(.4,0,.2,1);
}
.game-card:hover .game-card-cover img { transform: scale(1.08); }
.game-card-badges {
  position: absolute; top: 8px; left: 8px;
  display: flex; gap: 4px;
}
.badge {
  padding: 2px 8px; border-radius: var(--radius-full);
  font-size: .7rem; font-weight: 700;
}
.badge-hot { background: var(--danger); color: #fff; }
.badge-new { background: var(--success); color: #fff; }
.badge-rec { background: var(--primary); color: #fff; }

.game-card-info { padding: 12px; }
.game-card-title {
  font-size: .9rem; font-weight: 600; color: var(--text);
  margin-bottom: 4px; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
}
.game-card-meta {
  display: flex; align-items: center; justify-content: space-between;
  font-size: .75rem; color: var(--text-muted);
}
.game-card-meta .plays { display: flex; align-items: center; gap: 4px; }

.game-card-overlay {
  position: absolute; inset: 0; background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: var(--transition);
}
.game-card:hover .game-card-overlay { opacity: 1; }
.game-play-btn {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--primary); color: #fff; font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg); transition: var(--transition);
}
.game-play-btn:hover { transform: scale(1.1); background: var(--primary-dark); }

/* ============================================
   侧边栏
   ============================================ */

.layout { display: flex; gap: 24px; }
.layout-main { flex: 1; min-width: 0; }
.layout-side { width: 300px; flex-shrink: 0; }

.side-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px; margin-bottom: 20px;
}
.side-card-title {
  font-size: 1rem; font-weight: 700; margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
  color: var(--text);
}
.side-card-title::before {
  content: ''; width: 4px; height: 18px; border-radius: 2px;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
}

.rank-list { display: flex; flex-direction: column; gap: 2px; }
.rank-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 4px; border-radius: var(--radius-sm);
  transition: var(--transition-fast); cursor: pointer;
}
.rank-item:hover { background: var(--bg-alt); }
.rank-num {
  width: 24px; height: 24px; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem; font-weight: 700; flex-shrink: 0;
}
.rank-num.top-1 { background: #fef2f2; color: #ef4444; }
.rank-num.top-2 { background: #fff7ed; color: #f97316; }
.rank-num.top-3 { background: #fefce8; color: #eab308; }
.rank-num.other { background: var(--bg-alt); color: var(--text-muted); }
.rank-item .rank-thumb {
  width: 50px; height: 38px; border-radius: 6px; object-fit: cover;
  flex-shrink: 0; background: var(--bg-alt);
}
.rank-item .rank-info { flex: 1; min-width: 0; }
.rank-item .rank-title {
  font-size: .8rem; font-weight: 500; color: var(--text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.rank-item .rank-plays { font-size: .7rem; color: var(--text-muted); }

/* ============================================
   游戏详情页
   ============================================ */

.game-detail-header {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px; margin-bottom: 24px;
  display: flex; gap: 24px;
}
.game-detail-cover {
  width: 220px; height: 165px; border-radius: var(--radius);
  overflow: hidden; flex-shrink: 0; background: var(--bg-alt);
}
.game-detail-cover img { width: 100%; height: 100%; object-fit: cover; }
.game-detail-info { flex: 1; }
.game-detail-info h1 { font-size: 1.6rem; font-weight: 800; margin-bottom: 8px; }
.game-detail-meta {
  display: flex; gap: 16px; margin-bottom: 12px;
  font-size: .85rem; color: var(--text-muted);
}
.game-detail-tags { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.tag {
  padding: 3px 10px; background: var(--bg-alt);
  border-radius: var(--radius-full); font-size: .75rem;
  color: var(--text-secondary);
}
.tag:hover { background: var(--primary-bg); color: var(--primary); }
.game-detail-desc { font-size: .875rem; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.8; }
.game-detail-actions { display: flex; gap: 10px; }

.game-player {
  background: #000; border-radius: var(--radius-lg);
  overflow: hidden; aspect-ratio: 16/10; margin-bottom: 24px;
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.game-player iframe { width: 100%; height: 100%; border: none; }
.game-player-placeholder {
  color: #fff; text-align: center; padding: 40px;
}
.game-player-placeholder .play-icon {
  font-size: 3rem; margin-bottom: 16px; color: var(--primary-light);
}

.game-info-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }

.screenshot-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px; margin-bottom: 24px;
}
.screenshot-grid img {
  aspect-ratio: 16/10; object-fit: cover; border-radius: var(--radius);
  border: 1px solid var(--border); cursor: pointer; transition: var(--transition);
}
.screenshot-grid img:hover { border-color: var(--primary); }

/* ============================================
   评论区
   ============================================ */

.comment-section {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px;
}
.comment-input {
  display: flex; gap: 12px; margin-bottom: 24px;
}
.comment-input .avatar-img { flex-shrink: 0; }
.comment-input textarea {
  flex: 1; padding: 12px 16px; border: 1px solid var(--border);
  border-radius: var(--radius); resize: vertical; min-height: 80px;
  font-size: .875rem; color: var(--text); transition: var(--transition-fast);
}
.comment-input textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-bg); }
.comment-input .input-actions { display: flex; flex-direction: column; justify-content: flex-end; }

.comment-list { display: flex; flex-direction: column; gap: 16px; }
.comment-item {
  display: flex; gap: 12px; padding-bottom: 16px;
  border-bottom: 1px solid var(--border-light);
}
.comment-item:last-child { border-bottom: none; padding-bottom: 0; }
.comment-body { flex: 1; }
.comment-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.comment-author { font-size: .85rem; font-weight: 600; color: var(--text); }
.comment-time { font-size: .75rem; color: var(--text-muted); }
.comment-content { font-size: .875rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 8px; }
.comment-actions { display: flex; gap: 16px; font-size: .75rem; }
.comment-actions a { color: var(--text-muted); display: flex; align-items: center; gap: 4px; }
.comment-actions a:hover { color: var(--primary); }
.comment-reply { margin-top: 12px; padding-left: 48px; }

/* ============================================
   星级评分
   ============================================ */

.star-rating { display: inline-flex; gap: 2px; }
.star { font-size: 1.2rem; color: #d1d5db; cursor: pointer; transition: var(--transition-fast); }
.star.active, .star:hover { color: #fbbf24; }
.star-rating.read-only .star { cursor: default; }

.rating-display {
  display: flex; align-items: center; gap: 8px;
}
.rating-display .score { font-size: 1.1rem; font-weight: 700; color: var(--warning); }

/* ============================================
   分页
   ============================================ */

.pagination {
  display: flex; justify-content: center; gap: 6px;
  padding: 28px 0;
}
.page-btn {
  min-width: 36px; height: 36px; padding: 0 12px;
  border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--card); color: var(--text-secondary);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: .85rem; transition: var(--transition-fast);
}
.page-btn:hover { border-color: var(--primary); color: var(--primary); }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ============================================
   表单
   ============================================ */

.form-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px;
  max-width: 460px; margin: 40px auto;
  box-shadow: var(--shadow-md);
}
.form-card .form-title {
  text-align: center; font-size: 1.4rem; font-weight: 800;
  margin-bottom: 6px; color: var(--text);
}
.form-card .form-subtitle {
  text-align: center; font-size: .85rem; color: var(--text-muted);
  margin-bottom: 28px;
}
.form-group { margin-bottom: 18px; }
.form-label {
  display: block; font-size: .85rem; font-weight: 600;
  margin-bottom: 6px; color: var(--text);
}
.form-label .required { color: var(--danger); }
.form-control {
  width: 100%; padding: 10px 14px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: .875rem; color: var(--text); background: var(--card);
  transition: var(--transition-fast);
}
.form-control:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-bg);
}
textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { cursor: pointer; }
.form-hint { font-size: .75rem; color: var(--text-muted); margin-top: 4px; }
.form-error { font-size: .75rem; color: var(--danger); margin-top: 4px; }

.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }

/* ============================================
   签到
   ============================================ */

.signin-card {
  background: linear-gradient(135deg, #667eea, #764ba2);
  border-radius: var(--radius-lg); padding: 32px;
  color: #fff; text-align: center; margin-bottom: 24px;
}
.signin-card h2 { font-size: 1.5rem; margin-bottom: 8px; }
.signin-card p { opacity: .85; margin-bottom: 20px; }
.signin-calendar { display: flex; gap: 8px; margin-bottom: 20px; }
.signin-day {
  flex: 1; padding: 12px 4px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,.15); text-align: center;
  font-size: .75rem; transition: var(--transition);
}
.signin-day.signed { background: rgba(255,255,255,.3); }
.signin-day .day-num { font-size: 1.1rem; font-weight: 700; }
.signin-day .day-points { font-size: .7rem; opacity: .8; }

/* ============================================
   提示框
   ============================================ */

.alert {
  padding: 12px 16px; border-radius: var(--radius-sm);
  font-size: .85rem; margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.alert-success { background: var(--success-bg); color: #065f46; border: 1px solid #6ee7b7; }
.alert-danger { background: var(--danger-bg); color: #991b1b; border: 1px solid #fca5a5; }
.alert-warning { background: var(--warning-bg); color: #92400e; border: 1px solid #fcd34d; }
.alert-info { background: var(--info-bg); color: #1e40af; border: 1px solid #93c5fd; }

/* ============================================
   空状态
   ============================================ */

.empty-state {
  text-align: center; padding: 60px 20px; color: var(--text-muted);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 12px; opacity: .5; }
.empty-state p { font-size: .9rem; }

/* ============================================
   标签云
   ============================================ */

.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a {
  padding: 6px 14px; background: var(--bg-alt);
  border-radius: var(--radius-full); font-size: .8rem;
  color: var(--text-secondary); transition: var(--transition-fast);
}
.tag-cloud a:hover { background: var(--primary); color: #fff; }
.tag-cloud a.large { font-size: .95rem; font-weight: 600; }
.tag-cloud a.medium { font-size: .875rem; }

/* ============================================
   资讯
   ============================================ */

.news-item {
  display: flex; gap: 16px; padding: 16px 0;
  border-bottom: 1px solid var(--border-light);
}
.news-item:last-child { border-bottom: none; }
.news-item .news-cover {
  width: 160px; height: 100px; border-radius: var(--radius);
  object-fit: cover; flex-shrink: 0; background: var(--bg-alt);
}
.news-item .news-info { flex: 1; }
.news-item .news-title {
  font-size: 1rem; font-weight: 600; margin-bottom: 6px;
  color: var(--text);
}
.news-item .news-title:hover { color: var(--primary); }
.news-item .news-summary { font-size: .8rem; color: var(--text-muted); line-height: 1.6; }
.news-item .news-date { font-size: .75rem; color: var(--text-muted); margin-top: 6px; }

/* ============================================
   Footer
   ============================================ */

.site-footer {
  background: #1e293b; color: #94a3b8;
  padding: 40px 0 20px; margin-top: 40px;
}
.footer-inner { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px; padding-bottom: 24px;
  border-bottom: 1px solid #334155;
}
.footer-brand .logo { margin-bottom: 12px; }
.footer-brand p { font-size: .85rem; line-height: 1.8; }
.footer-col h4 { color: #fff; font-size: .9rem; margin-bottom: 12px; }
.footer-col a { display: block; color: #94a3b8; font-size: .85rem; padding: 4px 0; }
.footer-col a:hover { color: var(--primary-light); }
.footer-bottom {
  padding-top: 20px; text-align: center;
  font-size: .8rem; color: #64748b;
}
.footer-links { display: flex; gap: 16px; justify-content: center; margin-bottom: 8px; }
.footer-links a { color: #64748b; }
.footer-links a:hover { color: var(--primary-light); }

/* ============================================
   响应式
   ============================================ */

@media (max-width: 1024px) {
  .layout { flex-direction: column; }
  .layout-side { width: 100%; }
  .nav-menu { display: none; }
}
@media (max-width: 768px) {
  .header-search { display: none; }
  .game-detail-header { flex-direction: column; }
  .game-detail-cover { width: 100%; height: 200px; }
  .game-info-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .game-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .banner-slide { height: 240px; }
  .banner-slide-content h2 { font-size: 1.5rem; }
}
@media (max-width: 480px) {
  .container { padding: 0 12px; }
  .game-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; }
}

/* ============================================
   工具类
   ============================================ */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-primary { color: var(--primary); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-sm { font-size: .8rem; }
.text-lg { font-size: 1.1rem; }
.font-bold { font-weight: 700; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.hidden { display: none; }
.rounded { border-radius: var(--radius); }
.shadow { box-shadow: var(--shadow-md); }

/* ============================================
   扩展功能样式
   ============================================ */

/* --- 弹幕系统 --- */
.danmaku-container {
  position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 10;
}
.danmaku-track {
  position: absolute; white-space: nowrap; font-size: 1.1rem; font-weight: 700;
  text-shadow: 0 0 4px rgba(0,0,0,.8); animation: dm-scroll 8s linear forwards;
}
@keyframes dm-scroll { from { transform: translateX(100%); } to { transform: translateX(-100%); } }
.danmaku-track.top { top: 8px; animation: dm-show 4s linear forwards; }
.danmaku-track.bottom { bottom: 8px; animation: dm-show 4s linear forwards; }
@keyframes dm-show { 0%,80% { opacity: 1; } 100% { opacity: 0; } }
.danmaku-input-bar {
  position: absolute; bottom: 12px; left: 12px; right: 12px;
  display: flex; gap: 8px; background: rgba(0,0,0,.6); border-radius: 20px; padding: 6px 12px; z-index: 20;
}
.danmaku-input-bar input {
  flex: 1; border: none; background: transparent; color: #fff; font-size: .85rem; padding: 6px;
}
.danmaku-input-bar button {
  padding: 4px 14px; border-radius: 14px; background: var(--primary); color: #fff; font-size: .8rem;
}
.danmaku-toggle {
  position: absolute; top: 12px; right: 12px; z-index: 20;
  background: rgba(0,0,0,.5); border-radius: 8px; padding: 4px 10px; color: #fff; font-size: .8rem; cursor: pointer;
}

/* --- 成就墙 --- */
.achievement-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; }
.achievement-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 20px; text-align: center; transition: var(--transition); position: relative;
}
.achievement-card.unlocked { border-color: var(--success); background: linear-gradient(135deg, #d1fae5, #ffffff); }
.achievement-card.locked { opacity: .6; filter: grayscale(.6); }
.achievement-icon {
  width: 56px; height: 56px; margin: 0 auto 12px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 1.8rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #fff;
}
.achievement-card.unlocked .achievement-icon { background: linear-gradient(135deg, #f59e0b, #ec4899); }
.achievement-name { font-size: .9rem; font-weight: 700; margin-bottom: 4px; }
.achievement-desc { font-size: .75rem; color: var(--text-muted); }

/* --- 攻略/评测 --- */
.guide-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; transition: var(--transition);
}
.guide-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.guide-cover { width: 100%; aspect-ratio: 16/9; object-fit: cover; background: var(--bg-alt); }
.guide-info { padding: 16px; }
.guide-title { font-size: 1rem; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.guide-summary { font-size: .82rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 10px; }
.guide-meta { display: flex; align-items: center; gap: 12px; font-size: .75rem; color: var(--text-muted); }
.guide-author { display: flex; align-items: center; gap: 6px; }
.guide-content { font-size: .9rem; line-height: 1.9; color: var(--text-secondary); }
.guide-content h2 { font-size: 1.2rem; font-weight: 700; margin: 20px 0 10px; color: var(--text); }
.guide-content h3 { font-size: 1.05rem; font-weight: 700; margin: 16px 0 8px; color: var(--text); }
.guide-content p { margin-bottom: 12px; }
.guide-content img { border-radius: var(--radius); margin: 12px 0; }

/* --- 每日任务 --- */
.task-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 20px; margin-bottom: 12px; display: flex; align-items: center; gap: 16px;
  transition: var(--transition);
}
.task-card.completed { border-color: var(--success); background: linear-gradient(90deg, #d1fae5, #ffffff); }
.task-icon {
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 1.2rem; color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}
.task-info { flex: 1; }
.task-name { font-size: .95rem; font-weight: 600; margin-bottom: 4px; }
.task-desc { font-size: .78rem; color: var(--text-muted); }
.task-progress-bar {
  height: 6px; background: var(--bg-alt); border-radius: 3px; margin-top: 8px; overflow: hidden;
}
.task-progress-fill {
  height: 100%; background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 3px; transition: width .3s;
}
.task-reward { font-size: .85rem; font-weight: 700; color: var(--warning); flex-shrink: 0; }

/* --- 赛事/活动 --- */
.event-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; transition: var(--transition); position: relative;
}
.event-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.event-cover { width: 100%; aspect-ratio: 21/9; object-fit: cover; background: linear-gradient(135deg, #667eea, #764ba2); }
.event-badge {
  position: absolute; top: 12px; right: 12px; padding: 4px 12px; border-radius: 9999px;
  font-size: .72rem; font-weight: 700; color: #fff;
}
.event-badge.live { background: var(--danger); }
.event-badge.upcoming { background: var(--info); }
.event-badge.ended { background: var(--text-muted); }
.event-info { padding: 16px; }
.event-title { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.event-desc { font-size: .82rem; color: var(--text-muted); margin-bottom: 10px; }
.event-meta { display: flex; gap: 16px; font-size: .75rem; color: var(--text-muted); }

/* --- 个人主页 --- */
.space-header {
  background: linear-gradient(135deg, #667eea, #764ba2); border-radius: var(--radius-lg);
  padding: 32px; color: #fff; margin-bottom: 24px; display: flex; gap: 24px; align-items: center;
}
.space-avatar { width: 100px; height: 100px; border-radius: 50%; border: 4px solid rgba(255,255,255,.3); object-fit: cover; }
.space-info h2 { font-size: 1.5rem; margin-bottom: 8px; }
.space-info .space-bio { font-size: .85rem; opacity: .85; }
.space-stats { display: flex; gap: 24px; margin-top: 12px; }
.space-stat { text-align: center; }
.space-stat .num { font-size: 1.3rem; font-weight: 800; }
.space-stat .label { font-size: .75rem; opacity: .7; }

/* --- 游戏编辑器 --- */
.editor-layout { display: flex; gap: 16px; height: 600px; }
.editor-sidebar {
  width: 240px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; overflow-y: auto; flex-shrink: 0;
}
.editor-canvas {
  flex: 1; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  position: relative; overflow: hidden;
}
.editor-props {
  width: 240px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; overflow-y: auto; flex-shrink: 0;
}
.editor-tool {
  display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-radius: var(--radius-sm);
  cursor: pointer; transition: var(--transition-fast); font-size: .85rem;
}
.editor-tool:hover { background: var(--primary-bg); }
.template-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; cursor: pointer; transition: var(--transition);
}
.template-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.template-preview {
  width: 100%; aspect-ratio: 4/3; background: linear-gradient(135deg, #4facfe, #00f2fe);
  display: flex; align-items: center; justify-content: center; font-size: 2rem; color: #fff;
}
.template-info { padding: 12px; }
.template-name { font-size: .9rem; font-weight: 600; margin-bottom: 4px; }
.template-desc { font-size: .75rem; color: var(--text-muted); }

/* --- 邀请页面 --- */
.invite-card {
  background: linear-gradient(135deg, #667eea, #764ba2); border-radius: var(--radius-lg);
  padding: 32px; color: #fff; text-align: center; margin-bottom: 24px;
}
.invite-code {
  font-size: 2rem; font-weight: 800; letter-spacing: .1em; padding: 12px 24px;
  background: rgba(255,255,255,.2); border-radius: var(--radius); display: inline-block; margin: 16px 0;
}

/* --- 对战房间 --- */
.battle-room-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 20px; transition: var(--transition); cursor: pointer;
}
.battle-room-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); }
.battle-room-code { font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.battle-players { display: flex; gap: 8px; margin-top: 12px; }
.battle-player-slot {
  width: 40px; height: 40px; border-radius: 50%; border: 2px dashed var(--border);
  display: flex; align-items: center; justify-content: center; color: var(--text-muted); font-size: .8rem;
}
.battle-player-slot.filled { border-style: solid; border-color: var(--success); }

/* --- 游戏投稿 --- */
.upload-step {
  display: flex; align-items: center; gap: 8px; padding: 12px 16px;
  background: var(--primary-bg); border-radius: var(--radius); margin-bottom: 16px;
}
.upload-step-num {
  width: 28px; height: 28px; border-radius: 50%; background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: .8rem; font-weight: 700;
}