/* ============================================
   WCL 数据中心 — 统一设计 Token v3.0
   ============================================ */

/* --- 设计 Token (CSS 变量) --- */
:root {
  /* 主色调 */
  --gold:        #d4a843;
  --gold-light:  #e6c45a;
  --gold-dim:    #aa8a30;

  /* 功能色 */
  --green:       #3fb950;
  --red:         #f85149;
  --orange:      #f0883e;
  --blue:        #58a6ff;
  --purple:      #bc8cff;

  /* 中性色 */
  --gray:        #8b949e;
  --gray-dark:   #484f58;
  --border:      #21262d;
  --border-light:#30363d;

  /* 背景色 */
  --bg-body:     #0a0e14;
  --bg-card:     #161b22;
  --bg-card-alt: #1c2333;
  --bg-input:    #0d1117;
  --bg-hero:     linear-gradient(135deg, #1a1f2e 0%, #0d1117 50%, #1a1f2e 100%);

  /* 文字 */
  --text-primary: #c9d1d9;
  --text-muted:   #8b949e;
  --text-dim:     #484f58;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;

  /* 间距 */
  --gap-xs: 4px;
  --gap-sm: 8px;
  --gap-md: 16px;
  --gap-lg: 24px;
}


/* ============================================
   全局重置
   ============================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }


/* ============================================
   Hero 区域
   ============================================ */
.hero {
  background: var(--bg-hero);
  border-bottom: 2px solid var(--gold);
  padding: 40px 0 30px;
  text-align: center;
}
.hero h1 {
  font-size: 2.4em;
  color: var(--gold);
  letter-spacing: 4px;
  font-weight: 700;
}
.hero .sub {
  color: var(--text-muted);
  font-size: 1.1em;
  margin-top: 8px;
}
.hero .ts {
  color: var(--text-dim);
  font-size: 0.85em;
  margin-top: 6px;
}


/* ============================================
   一级导航（横向 Tab）
   ============================================ */
.nav {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.nav .container {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;          /* Firefox */
  -ms-overflow-style: none;       /* IE */
}
.nav .container::-webkit-scrollbar { display: none; }  /* Chrome */

.nav a {
  color: var(--text-muted);
  padding: 14px 20px;
  font-size: 0.95em;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
  user-select: none;
  flex-shrink: 0;
}
.nav a:hover {
  color: var(--gold);
  background: rgba(212,168,67,0.05);
}
.nav a.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
  background: rgba(212,168,67,0.08);
  font-weight: 600;
}


/* ============================================
   赛季切换栏
   ============================================ */
.season-bar {
  background: var(--bg-card);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.season-tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.season-tab {
  padding: 6px 16px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-input);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9em;
  transition: all 0.2s;
  white-space: nowrap;
}
.season-tab:hover { border-color: var(--gold); color: var(--gold); }
.season-tab.active {
  background: var(--gold);
  color: var(--bg-body);
  border-color: var(--gold);
  font-weight: 700;
}


/* ============================================
   二级子导航（Tab 下方标签栏）
   ============================================ */
.sub-nav {
  display: flex;
  gap: var(--gap-xs);
  margin-bottom: var(--gap-md);
  flex-wrap: wrap;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.sub-nav a {
  color: var(--text-muted);
  padding: 8px 18px;
  font-size: 0.9em;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all 0.2s;
  white-space: nowrap;
  user-select: none;
}
.sub-nav a:hover {
  color: var(--gold);
  border-color: var(--gold);
  background: var(--bg-card-alt);
}
.sub-nav a.active {
  color: var(--gold);
  border-color: var(--gold);
  background: var(--bg-card-alt);
  font-weight: 600;
}

.sub-content { display: none; }
.sub-content.active { display: block; animation: fadeIn 0.2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ============================================
   高光时刻标签（由 JS 动态添加）
   ============================================ */
.highlight-tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85em;
  color: var(--gold-light);
  cursor: pointer;
  margin: 2px;
}
.intensity-hot  { background: rgba(63,185,80,0.12);  border: 1px solid rgba(63,185,80,0.3); }
.intensity-warm { background: rgba(212,168,67,0.12); border: 1px solid rgba(212,168,67,0.3); }
.intensity-mid  { background: var(--bg-card-alt);      border: 1px solid var(--border); }

/* 新晋标签 */
.tag-new {
  display: inline-block;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.75em;
  background: rgba(212,168,67,0.15);
  color: var(--gold);
  margin-left: 4px;
  font-weight: 600;
}

.container { max-width: 1400px; margin: 0 auto; padding: 0 20px; }
.section { padding: 30px 0; }
.section-title {
  font-size: 1.5em;
  color: var(--gold);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}


/* ============================================
   统计卡片（Overview 顶部 KPI）
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--gap-md);
  margin-bottom: 30px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  transition: transform 0.15s, box-shadow 0.15s;
}
.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.stat-card .label { color: var(--text-muted); font-size: 0.85em; margin-bottom: 6px; }
.stat-card .value { font-size: 2em; font-weight: 700; color: var(--gold); }
.stat-card .unit { color: var(--text-dim); font-size: 0.8em; }


/* ============================================
   通用表格
   ============================================ */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 30px;
  min-width: 900px;                    /* 防止过窄 */
}
.data-table th {
  background: var(--bg-card-alt);
  color: var(--gold);
  padding: 12px 14px;
  text-align: left;
  font-size: 0.85em;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  position: relative;
}
.data-table th:hover { color: var(--gold-light); }
.data-table td {
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  font-size: 0.9em;
}
.data-table tr:hover { background: var(--bg-card-alt); }

/* 排名前三颜色 */
.rank-1 { color: var(--gold); font-weight: 700; }
.rank-2 { color: #c0c0c0; font-weight: 700; }
.rank-3 { color: #cd7f32; font-weight: 700; }

/* 排序箭头 */
.sort-asc::after { content: " ↑"; font-size: 0.85em; }
.sort-desc::after { content: " ↓"; font-size: 0.85em; }


/* ============================================
   搜索框
   ============================================ */
.search-box {
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  color: var(--text-primary);
  font-size: 0.9em;
  width: 100%;
  max-width: 300px;
  margin-bottom: var(--gap-md);
  transition: border-color 0.2s;
}
.search-box:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(212,168,67,0.15);
}


/* ============================================
   主内容 Tab 切换
   ============================================ */
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.2s ease; }


/* ============================================
   今日热点 Banner
   ============================================ */
.hotspot-banner {
  background: linear-gradient(135deg, #1a1f2e 0%, #1c1a1a 100%);
  border: 1px solid var(--gold);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 24px;
}
.hotspot-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.3em;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.hotspot-date { color: var(--text-dim); font-size: 0.65em; font-weight: 400; margin-left: auto; }
.hotspot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--gap-md);
}
.hotspot-card {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
}
.hotspot-card-title {
  color: var(--gold-light);
  font-size: 0.95em;
  font-weight: 700;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.hotspot-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--bg-card);
  font-size: 0.9em;
  color: var(--text-primary);
  line-height: 1.5;
}
.hotspot-item:last-child { border-bottom: none; }
.hotspot-rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--bg-body);
  font-size: 0.75em;
  font-weight: 700;
  flex-shrink: 0;
}
.meme-name { color: var(--blue); font-weight: 700; white-space: nowrap; }
.meme-desc { color: var(--text-muted); font-size: 0.85em; }
.discuss-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 22px;
  border-radius: var(--radius-sm);
  background: rgba(88,166,255,0.1);
  color: var(--blue);
  font-size: 0.75em;
  font-weight: 700;
  flex-shrink: 0;
}


/* ============================================
   日报/周报 卡片
   ============================================ */
.report-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  transition: transform 0.15s;
}
.report-card:hover { transform: translateY(-1px); }
.report-card h3 { color: var(--gold); margin-bottom: 4px; cursor: pointer; }
.report-card h3:hover { color: var(--gold-light); }
.report-card .rd { color: var(--text-dim); font-size: 0.85em; margin-bottom: 16px; }
.report-card .tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75em;
  margin-left: 8px;
  font-weight: 600;
}
.tag-daily   { background: rgba(63,185,80,0.1);  color: var(--green); }
.tag-weekly  { background: rgba(88,166,255,0.1); color: var(--blue);  }

/* 日报正文 Markdown 样式 */
.report-body h2 { color: var(--gold); font-size: 1.2em; margin: 16px 0 8px; }
.report-body h3 { color: var(--gold-light); font-size: 1.05em; margin: 14px 0 6px; }
.report-body h4 { color: var(--text-primary); font-size: 0.95em; margin: 10px 0 4px; }
.report-body strong { color: var(--gold-light); }
.report-body a { color: var(--blue); }
.report-body hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }
.report-body li { margin-left: 20px; color: var(--text-muted); }
.report-body p { margin: 6px 0; }
.md-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.9em;
}
.md-table th {
  background: var(--bg-card-alt);
  color: var(--gold);
  padding: 8px 12px;
  text-align: left;
  border: 1px solid var(--border);
}
.md-table td { padding: 6px 12px; border: 1px solid var(--border); }


/* ============================================
   坦克标签
   ============================================ */
.tank-tag {
  display: inline-block;
  background: var(--bg-card-alt);
  color: var(--text-muted);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  margin: 1px 2px;
  font-size: 0.85em;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s;
}
.tank-tag:hover { color: var(--gold); border-color: var(--gold); }


/* ============================================
   地图热力图
   ============================================ */
.heatmap-legend {
  display: flex; gap: 12px; flex-wrap: wrap; align-items: center;
  margin-bottom: 16px; padding: 12px 16px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); font-size: 0.85em;
}
.heatmap-legend .legend-label { color: var(--text-muted); margin-right: 4px; }
.heatmap-legend .legend-swatch {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: var(--radius-sm); font-weight: 600;
}
.legend-hot  { background: rgba(63,185,80,0.15);  color: var(--green);  border: 1px solid rgba(63,185,80,0.3); }
.legend-warm { background: rgba(212,168,67,0.15); color: var(--gold);   border: 1px solid rgba(212,168,67,0.3); }
.legend-mid  { background: rgba(240,136,62,0.12); color: var(--orange); border: 1px solid rgba(240,136,62,0.25); }
.legend-cold { background: rgba(248,81,73,0.12);  color: var(--red);    border: 1px solid rgba(248,81,73,0.25); }
.legend-na   { background: var(--bg-card-alt);     color: var(--text-dim); border: 1px solid var(--border); }

.heatmap-table {
  width: 100%; border-collapse: collapse;
  background: var(--bg-card); border-radius: var(--radius-lg); overflow: hidden;
}
.heatmap-table th {
  background: var(--bg-card-alt); color: var(--gold);
  padding: 10px 10px; text-align: center; font-size: 0.82em;
  font-weight: 600; white-space: nowrap; border-bottom: 2px solid var(--border);
  position: sticky; top: 0; z-index: 3;
}
.heatmap-table th.map-col-header { 
  writing-mode: vertical-lr; text-orientation: mixed;
  min-width: 34px; max-width: 36px; padding: 8px 4px;
  letter-spacing: 1px; font-size: 0.78em;
}
.heatmap-table th.team-col-header {
  text-align: left; min-width: 100px; position: sticky; left: 0; z-index: 4;
  background: var(--bg-card-alt); border-right: 2px solid var(--border);
}
.heatmap-table td {
  padding: 6px 8px; text-align: center; font-size: 0.85em;
  border-top: 1px solid var(--border); transition: background 0.15s;
}
.heatmap-table td.team-name-cell {
  text-align: left; font-weight: 700; white-space: nowrap;
  position: sticky; left: 0; background: var(--bg-card); z-index: 2;
  border-right: 2px solid var(--border); padding: 8px 12px;
}
.heatmap-table tr:hover td { background: var(--bg-card-alt); }
.heatmap-table tr:hover td.team-name-cell { background: var(--bg-card-alt); }

.ht-hot  { background: rgba(63,185,80,0.18) !important; color: var(--green);  font-weight: 700; }
.ht-warm { background: rgba(212,168,67,0.14) !important; color: var(--gold);   font-weight: 700; }
.ht-mid  { background: rgba(240,136,62,0.10) !important; color: var(--orange); }
.ht-cold { background: rgba(248,81,73,0.14)  !important; color: var(--red);    font-weight: 700; }
.ht-na   { color: var(--border-light); background: rgba(13,17,23,0.3); }


/* ============================================
   坦克/战队地图组
   ============================================ */
.tank-map-group {
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.tank-map-name {
  background: var(--bg-card-alt);
  color: var(--gold);
  padding: 8px 14px;
  font-weight: 700;
  font-size: 0.95em;
}


/* ============================================
   选手链接 & 弹窗
   ============================================ */
.player-link { color: var(--blue); cursor: pointer; }
.player-link:hover { color: var(--gold); text-decoration: underline; }

.player-modal-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.8);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  overflow-y: auto;
  padding: 40px 20px;
}
.player-modal {
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 900px;
  padding: 0;
  animation: modalIn 0.2s ease;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: none; } }

.player-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.player-modal-header h2 { color: var(--gold); font-size: 1.4em; margin: 0; }
.player-modal-close {
  color: var(--text-muted);
  font-size: 1.4em;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}
.player-modal-close:hover { color: var(--red); background: var(--bg-card-alt); }
.player-modal-season {
  color: var(--text-dim);
  font-size: 0.9em;
  padding: 8px 24px;
  border-bottom: 1px solid var(--border);
}
.player-radar-wrap { display: flex; justify-content: center; padding: 20px; }
.player-section { padding: 16px 24px; }
.player-section h3 { color: var(--gold); margin-bottom: 12px; font-size: 1.1em; }
.player-section h4 { color: var(--gold-light); margin-bottom: 8px; font-size: 0.95em; }
.player-tank-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--gap-md);
}
.player-tank-col {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px;
}
.player-tank-col .md-table { font-size: 0.82em; }
.player-tank-col .md-table th,
.player-tank-col .md-table td { padding: 4px 8px; }


/* ============================================
   选手对比模块
   ============================================ */
.cmp-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 8px;
}
.cmp-name-a { color: var(--gold); font-size: 1.3em; font-weight: 700; }
.cmp-name-b { color: var(--blue); font-size: 1.3em; font-weight: 700; }
.cmp-vs      { color: var(--text-dim); font-size: 1em; }
.cmp-subtitle { text-align: center; color: var(--text-dim); font-size: 0.85em; margin-bottom: 20px; }

.cmp-section { margin-bottom: 24px; }
.cmp-section h4 { color: var(--gold-light); margin-bottom: 12px; font-size: 1em; }
.cmp-row { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.cmp-label {
  width: 80px;
  color: var(--text-muted);
  font-size: 0.85em;
  text-align: right;
  flex-shrink: 0;
}
.cmp-bar-wrap {
  flex: 1;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  height: 22px;
  overflow: hidden;
  position: relative;
}
.cmp-bar-a {
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  height: 100%;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  padding-left: 8px;
  font-size: 0.75em;
  color: var(--bg-body);
  font-weight: 700;
  min-width: 40px;
  transition: width 0.4s ease;
}
.cmp-bar-b {
  background: linear-gradient(90deg, var(--blue), #79c0ff);
  height: 100%;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  padding-left: 8px;
  font-size: 0.75em;
  color: var(--bg-body);
  font-weight: 700;
  min-width: 40px;
  transition: width 0.4s ease;
}
.cmp-win  { box-shadow: 0 0 8px rgba(212,168,67,0.4); }
.cmp-win.cmp-bar-b { box-shadow: 0 0 8px rgba(88,166,255,0.4); }


/* ============================================
   Tips 折叠
   ============================================ */
.tips-collapsed .report-card:nth-child(n+4) { display: none; }
.tips-expand-btn {
  display: block;
  margin: 16px auto 0;
  padding: 8px 24px;
  background: var(--bg-card-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--gold);
  font-size: 0.9em;
  cursor: pointer;
  transition: all 0.2s;
}
.tips-expand-btn:hover { border-color: var(--gold); background: var(--bg-card); }


/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85em;
  margin-top: 40px;
}


/* ============================================
   移动端适配
   ============================================ */
@media (max-width: 768px) {
  .hero h1 { font-size: 1.6em; letter-spacing: 2px; }
  .hero .sub { font-size: 0.95em; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hotspot-grid { grid-template-columns: 1fr; }
  .nav a { padding: 12px 14px; font-size: 0.88em; }
  .sub-nav a { padding: 6px 12px; font-size: 0.85em; }
  .section-title { font-size: 1.2em; }
  .data-table { font-size: 0.82em; }
  .data-table th, .data-table td { padding: 8px 10px; }
  .player-modal { margin: 10px; }
  .player-tank-grid { grid-template-columns: 1fr; }
  .cmp-header { flex-direction: column; gap: 8px; }
  .cmp-row { flex-wrap: wrap; }
  .cmp-label { width: 60px; font-size: 0.8em; }
}

@media (max-width: 480px) {
  .container { padding: 0 12px; }
  .hero { padding: 24px 0 20px; }
  .hero h1 { font-size: 1.3em; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .stat-card { padding: 14px; }
  .stat-card .value { font-size: 1.5em; }
  .nav a { padding: 10px 10px; font-size: 0.82em; }
}

/* ============================================
   语义工具类（颜色/字号）
   ============================================ */
.t-green  { color: var(--green) !important; font-weight: 700; }
.t-red    { color: var(--red) !important;   font-weight: 700; }
.t-orange { color: var(--orange) !important; font-weight: 700; }
.t-gold   { color: var(--gold) !important; }
.t-dim    { color: var(--text-dim); }
.t-gray   { color: var(--text-muted); }

/* Tips 折叠 */
.tips-collapsed .report-card:nth-child(n+4) { display: none; }
.tips-expand-btn {
  display: block; margin: 16px auto 0; padding: 8px 24px;
  background: var(--bg-card-alt); border: 1px solid var(--border-light);
  border-radius: var(--radius-md); color: var(--gold); font-size: 0.9em; cursor: pointer; transition: all 0.2s;
}
.tips-expand-btn:hover { border-color: var(--gold); background: var(--bg-card); }