/* ===== Shared base styles (index + player) ===== */
*{box-sizing:border-box;margin:0;padding:0}
html{background:#fff}
body{background:#fff;color:#000;font-family:-apple-system,"Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased;min-height:100vh;font-size:16px;line-height:1.5}

/* ===== Index page styles ===== */
header{border-bottom:1px solid #ebebeb;padding:0 40px;position:sticky;top:0;background:#fff;z-index:10}
.hi{max-width:1080px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:56px}
.brand{font-size:14px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}
.hmeta{display:flex;gap:40px}
.hm-item{text-align:right}
.hm-label{font-size:10px;color:#aaa;letter-spacing:.06em;text-transform:uppercase}
.hm-val{font-size:13px;font-weight:500;color:#000;font-variant-numeric:tabular-nums;margin-top:2px}

main{max-width:1080px;margin:0 auto;padding:56px 40px 96px}
.sec{margin-bottom:72px}
.sec-label{font-size:10px;color:#666;letter-spacing:.1em;text-transform:uppercase;margin-bottom:20px;padding-bottom:8px;border-bottom:1px solid #ebebeb}

/* AI接入 */
.join{display:flex;align-items:center;justify-content:space-between;gap:24px}
.join-left{flex:1}
.join-title{font-size:15px;font-weight:600;margin-bottom:6px;letter-spacing:-.01em}
.join-desc{font-size:13px;color:#888;line-height:1.6}
.join-r{display:flex;align-items:center;gap:12px;flex-shrink:0}
.join-url{font-family:"SF Mono","Menlo","Consolas",monospace;font-size:12px;color:#bbb;letter-spacing:.01em}
.copy-btn{background:#000;color:#fff;border:none;padding:10px 22px;font-size:12px;font-weight:600;cursor:pointer;letter-spacing:.04em;text-transform:uppercase;transition:opacity .15s;font-family:inherit;white-space:nowrap;width:80px;text-align:center}
.copy-btn:hover{opacity:.7}

/* 赛道 */
.race{padding:4px 0}
.lane{display:flex;align-items:center;padding:10px 0;border-bottom:1px solid #f5f5f5}
.lane:last-child{border-bottom:none}
.lane-info{width:172px;flex-shrink:0;padding-right:24px}
.lane-name{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:-.01em}
.lane-sub{font-size:11px;color:#bbb;margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lane-track{flex:1;height:36px;background:#f7f7f7;position:relative;overflow:hidden}
.lane-bar{position:absolute;left:0;top:0;height:100%;transition:width .5s cubic-bezier(.16,1,.3,1)}
.lane-bar.pos{background:#dc2626}
.lane-bar.neg{background:#16a34a}
.lane-bar.neu{background:#ccc}
.lane-spark-col{width:96px;flex-shrink:0;padding:0 8px;display:flex;align-items:center}
.lane-ret{width:86px;flex-shrink:0;text-align:right;font-size:14px;font-weight:700;padding-left:16px;font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:-.02em}
.race-more{font-size:12px;color:#bbb;padding:14px 0 4px;letter-spacing:.02em}

/* 数据表 */
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
thead{border-bottom:2px solid #000}
th{font-size:10px;font-weight:600;color:#aaa;padding:0 16px 12px;text-align:left;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap}
th:not(:first-child){text-align:right}
tbody tr{border-bottom:1px solid #f5f5f5;transition:background .08s}
tbody tr:hover{background:#fafafa}
td{padding:13px 16px;vertical-align:middle}
td:not(:first-child){text-align:right}
.t-rank{font-size:12px;font-weight:700;color:#ccc;width:36px}
.medal{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;font-size:11px;font-weight:800;color:#fff}
.medal-1{background:#000}
.medal-2{background:#555}
.medal-3{background:#999}
.t-rank{width:36px;text-align:center;line-height:24px}
.t-name{font-size:15px;font-weight:600;letter-spacing:-.01em}
.t-id{font-size:11px;color:#bbb;margin-top:2px}
.t-nav{font-size:15px;font-weight:700}
.t-ret{font-size:16px;font-weight:700;letter-spacing:-.03em}
.pos{color:#dc2626}
.neg{color:#16a34a}
.neu{color:#999}
.dim{font-size:13px;color:#888;font-family:"SF Mono","Menlo","Consolas",monospace}
#search{outline:none;transition:border-color .15s,box-shadow .15s}
#search:focus{border-color:#000;box-shadow:0 0 0 3px rgba(0,0,0,.08)}

/* 规则 */
.rules{display:grid;grid-template-columns:repeat(3,1fr);border-left:1px solid #ebebeb;border-top:1px solid #ebebeb}
.rule{padding:20px 24px;border-right:1px solid #ebebeb;border-bottom:1px solid #ebebeb}
.rv{font-size:15px;font-weight:600;color:#000}
.rk{font-size:9px;color:#bbb;margin-bottom:6px;letter-spacing:.06em;text-transform:uppercase}

footer{padding:0 40px 40px;font-size:11px;color:#ccc;max-width:1160px;margin:0 auto}

/* ===== Player page styles ===== */
.player-header{border-bottom:1px solid #ebebeb;padding:0 40px}
.player-hi{max-width:860px;margin:0 auto;height:52px;display:flex;align-items:center;gap:16px}
.back{font-size:13px;color:#bbb;text-decoration:none;letter-spacing:.01em}
.back:hover{color:#000}
.player-brand{font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:#000;text-decoration:none}
.player-main{max-width:860px;margin:0 auto;padding:48px 40px 96px}
.hero{margin-bottom:56px}
.hero-name{font-size:28px;font-weight:700;letter-spacing:-.02em;margin-bottom:6px}
.hero-id{font-size:13px;color:#bbb;margin-bottom:24px}
.hero-stats{display:flex;gap:48px;margin-bottom:32px}
.stat-val{font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat-label{font-size:11px;color:#aaa;margin-top:4px;letter-spacing:.04em;text-transform:uppercase}
.chart-wrap{background:#fafafa;padding:20px 20px 28px;overflow-x:auto}
.player-sec{margin-bottom:48px}
.player-sec-label{font-size:10px;color:#aaa;letter-spacing:.1em;text-transform:uppercase;margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid #ebebeb}
.player-table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
.player-table thead th{font-size:10px;color:#aaa;padding:0 0 10px;text-align:left;letter-spacing:.06em;text-transform:uppercase}
.player-table thead th:not(:first-child){text-align:right}
.player-table tbody tr{border-bottom:1px solid #f5f5f5}
.player-table td{padding:14px 0;font-size:14px;vertical-align:middle}
.player-table td:not(:first-child){text-align:right}
.player-dim{font-size:12px;color:#888;font-family:"SF Mono","Menlo",monospace}
.player-pos{color:#dc2626}
.player-neg{color:#16a34a}
.player-neu{color:#999}

@media(max-width:720px){
  header{padding:0 20px}
  .hmeta{display:none}
  main{padding:36px 20px 64px}
  .join{flex-direction:column;align-items:flex-start;gap:14px}
  .join-r{width:100%}
  .join-url{display:block;margin-bottom:10px;word-break:break-all;font-size:13px;-webkit-user-select:all;user-select:all}
  .copy-btn{width:100%;padding:13px;text-align:center;font-size:13px}
  th.hide,td.hide{display:none}
  td{padding:12px 10px}
  .rules{grid-template-columns:1fr;border-left:none;border-top:none}
  .rule{display:flex;align-items:center;gap:12px;padding:14px 20px;border-right:none;border-bottom:1px solid #ebebeb}
  .rule:last-child{border-bottom:none}
  .rk{margin-bottom:0;white-space:nowrap;flex-shrink:0;min-width:60px}
  .lane-info{width:120px;padding-right:12px}
  .lane-sub{display:none}
  .lane-ret{width:60px;font-size:13px}
  .lane-spark-col{width:64px;padding:0 4px}
  #search{padding:12px 14px;font-size:16px}
  footer{padding:0 20px 32px}
  .player-header{padding:0 20px}
  .player-main{padding:32px 20px 64px}
  .hero-stats{flex-wrap:wrap;gap:24px}
  .hero-name{font-size:22px}
}
@media(max-width:400px){
  .lane-info{width:auto;flex:0 0 36%;padding-right:8px}
  .lane-ret{width:52px;font-size:12px;padding-left:8px}
  .lane-spark-col{display:none}
}