*{margin:0;padding:0;box-sizing:border-box}
:root{--red:#e23b3b;--blue:#2f6fed;--green:#1faa53;--ink:#1a1a1a;--mut:#888;--bg:#f6f7f9;--card:#fff;--line:#e8eaed}
body{font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);-webkit-text-size-adjust:100%}
.wrap{max-width:720px;margin:0 auto;padding:0 14px}

/* 顶栏 */
.topbar{background:#b71c1c;color:#fff;position:sticky;top:0;z-index:10}
.topbar-in{display:flex;align-items:center;justify-content:space-between;height:56px}
.brand{font-size:19px;font-weight:700;display:flex;align-items:center;gap:8px}
.brand-ball{display:inline-flex;width:30px;height:30px;border-radius:50%;background:#fff;color:#b71c1c;align-items:center;justify-content:center;font-size:18px;font-weight:800}
.tabs{display:flex;gap:6px}
.tab{border:1px solid rgba(255,255,255,.55);background:transparent;color:#fff;border-radius:20px;padding:7px 14px;font-size:14px;cursor:pointer}
.tab.active{background:#fff;color:#b71c1c;font-weight:700}

/* 最新开奖 */
.hero{background:var(--card);border-radius:14px;margin:14px 0;padding:20px 16px;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.hero-head{display:flex;justify-content:space-between;align-items:flex-start}
.hero h1{font-size:21px}
.draw-meta{color:var(--mut);font-size:13px;margin-top:4px}
.refresh{border:1px solid var(--line);background:#fff;border-radius:20px;padding:7px 14px;font-size:14px;cursor:pointer;color:#333}
.refresh:active{transform:rotate(40deg)}
.balls{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 6px;align-items:center}
.ball{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;font-weight:800;box-shadow:inset -3px -4px 6px rgba(0,0,0,.25)}
.ball.red{background:radial-gradient(circle at 35% 30%,#ff7b7b,var(--red))}
.ball.blue{background:radial-gradient(circle at 35% 30%,#7ba2ff,var(--blue))}
.ball.green{background:radial-gradient(circle at 35% 30%,#6fe3a0,var(--green))}
.ball.special{outline:3px dashed #f5a623;outline-offset:3px}
.plus{font-size:22px;color:var(--mut);font-weight:700}
.hero-note{font-size:13px;color:var(--mut);display:flex;align-items:center;gap:6px;margin-top:8px}
.live-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;display:inline-block;animation:blink 1.6s infinite}
@keyframes blink{50%{opacity:.35}}
.countdown{font-size:13px;color:#b71c1c;margin-top:6px;font-weight:600}

/* 广告位 */
.ad-slot{margin:14px 0;min-height:0}
.ad-slot:empty{display:none}
.ad-img{display:block;width:100%;border-radius:10px;overflow:hidden;background:#fff}
.ad-img img{width:100%;display:block}

/* 历史记录 */
.history{background:var(--card);border-radius:14px;padding:18px 14px;margin:14px 0;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.history h2,.about h2{font-size:17px;margin-bottom:12px}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:9px 6px;border-bottom:1px solid var(--line);text-align:center;white-space:nowrap}
th{background:#fafbfc;color:#555;font-weight:600}
td.nums{white-space:normal;text-align:left}
.mini-ball{display:inline-flex;width:26px;height:26px;border-radius:50%;color:#fff;font-size:12px;font-weight:700;align-items:center;justify-content:center;margin:1px}
.mini-ball.red{background:var(--red)}.mini-ball.blue{background:var(--blue)}.mini-ball.green{background:var(--green)}
.mini-ball.special{outline:2px dashed #f5a623;outline-offset:1px}
.empty{text-align:center;color:var(--mut);padding:20px}

/* 说明 */
.about{background:var(--card);border-radius:14px;padding:18px 14px;margin:14px 0;box-shadow:0 1px 4px rgba(0,0,0,.06);font-size:14px;line-height:1.8;color:#444}

footer{background:#222;color:#999;font-size:12px;padding:22px 0;margin-top:18px;text-align:center;line-height:2}
footer a{color:#bbb}

/* 管理后台 */
.admin-card{background:#fff;border-radius:14px;padding:18px 14px;margin:14px 0;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.admin-card h2{font-size:17px;margin-bottom:12px}
.field{margin-bottom:12px}
.field label{display:block;font-size:13px;color:#555;margin-bottom:5px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px;font-size:15px;font-family:inherit}
.field textarea{min-height:90px;resize:vertical}
.btn{display:inline-block;border:none;border-radius:8px;padding:11px 20px;font-size:15px;cursor:pointer;background:#b71c1c;color:#fff;font-weight:600}
.btn.ghost{background:#f0f0f0;color:#333}
.btn.small{padding:7px 12px;font-size:13px}
.ad-item{border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:10px;font-size:14px}
.ad-item .row{display:flex;justify-content:space-between;align-items:center;gap:8px}
.badge{font-size:12px;padding:2px 8px;border-radius:10px;background:#e8f5e9;color:#2e7d32}
.badge.off{background:#f5f5f5;color:#999}
.status{font-size:13px;color:var(--mut);background:#fff;border-radius:10px;padding:12px;margin:14px 0}

@media(min-width:721px){
  .ball{width:60px;height:60px;font-size:23px}
  .hero{padding:26px 24px}
}