/* 区块链竞赛训练平台 · 共用样式 */
:root{
  --bg:#f5f7fb; --card:#ffffff; --ink:#1c2333; --sub:#5a6478; --line:#e4e8f0;
  --blue:#5b8def; --teal:#0ea5a4; --amber:#f59e0b; --purple:#8b5cf6; --pink:#ec4899; --red:#ef4444;
  --green:#22c55e; --radius:14px;
  --shadow:0 1px 3px rgba(28,35,51,.06),0 8px 24px rgba(28,35,51,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
button{font-family:inherit}

/* ---------- 通用 ---------- */
.wrap{max-width:1080px;margin:0 auto;padding:20px 16px 80px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 20px;margin-bottom:16px}
.h-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
h1{font-size:22px}h2{font-size:17px}h3{font-size:15px}
.sub{color:var(--sub);font-size:13px}
.tag{display:inline-block;font-size:12px;padding:1px 10px;border-radius:999px;border:1px solid var(--line);color:var(--sub);background:#fff}
.btn{display:inline-block;border:none;cursor:pointer;border-radius:10px;padding:9px 18px;font-size:14px;background:var(--blue);color:#fff;transition:.15s}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn.small{padding:5px 12px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.input,select,textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:14px;font-family:inherit;background:#fff;color:var(--ink)}
textarea{min-height:70px;resize:vertical}
input:focus,textarea:focus{outline:2px solid rgba(91,141,239,.3)}
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.topbar .in{max-width:1080px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:14px}
.topbar .logo{font-weight:700;font-size:16px;display:flex;align-items:center;gap:8px}
.topbar nav{display:flex;gap:4px;flex-wrap:wrap}
.topbar nav a{padding:6px 12px;border-radius:9px;font-size:14px;color:var(--sub)}
.topbar nav a.on{background:var(--ink);color:#fff}
.topbar .sp{flex:1}
.avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--purple));display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;cursor:pointer}

/* 进度环 */
.ring{position:relative;width:110px;height:110px;flex:none}
.ring svg{transform:rotate(-90deg)}
.ring .num{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring .num b{font-size:24px}
.ring .num span{font-size:11px;color:var(--sub)}

/* 里程碑条 */
.miles{display:flex;gap:6px;flex-wrap:wrap}
.mile{flex:1;min-width:60px;text-align:center;padding:8px 4px;border-radius:10px;background:#f2f5fa;font-size:12px;color:var(--sub);border:1px solid transparent}
.mile.done{background:#e8f8ef;color:#15803d;border-color:#bbf0cf}
.mile.cur{background:var(--ink);color:#fff}
.mile b{display:block;font-size:15px}

/* 统计块 */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center}
.stat b{font-size:26px;display:block}
.stat span{font-size:12px;color:var(--sub)}
.stat.fire b{color:var(--red)}
.stat.clock b{color:var(--blue)}
.stat.medal b{color:var(--amber)}

/* 阶段卡 */
.stage{border-left:5px solid var(--blue);position:relative}
.stage .s-head{display:flex;gap:12px;align-items:center;cursor:pointer}
.stage .s-ic{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;flex:none}
.stage .s-meta{flex:1;min-width:200px}
.stage .s-prog{margin-top:4px;height:6px;background:#eef1f6;border-radius:99px;overflow:hidden;max-width:420px}
.stage .s-prog i{display:block;height:100%;border-radius:99px;transition:width .4s}
.pct{font-size:13px;font-weight:600}

/* 周块 */
.week{margin-top:14px;border-top:1px dashed var(--line);padding-top:12px}
.week .w-head{display:flex;justify-content:space-between;align-items:center;cursor:pointer}
.week .w-days{margin-top:10px;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px}
.day{border:1px solid var(--line);border-radius:12px;padding:12px;background:#fbfcfe;cursor:pointer;transition:.15s;position:relative}
.day:hover{border-color:var(--blue);transform:translateY(-1px)}
.day.did{border-color:#bbe7c8;background:#f2fbf5}
.day.did::after{content:"✓";position:absolute;top:8px;right:10px;color:#22c55e;font-weight:700}
.day .d-t{font-size:13.5px;font-weight:600;padding-right:16px}
.day .d-m{font-size:12px;color:var(--sub);margin-top:4px}
.day .t-t{font-size:11px;padding:1px 8px;border-radius:99px;position:absolute;bottom:8px;right:10px}

/* 任务详情抽屉 */
.mask{position:fixed;inset:0;background:rgba(20,24,36,.45);z-index:90;display:none}
.mask.on{display:block}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(480px,94vw);background:#fff;z-index:99;overflow:auto;box-shadow:-12px 0 40px rgba(0,0,0,.12);transform:translateX(100%);transition:.25s}
.drawer.on{transform:none}
.drawer .d-in{padding:22px}
.drawer h3{font-size:17px;margin-bottom:6px}
.drawer ol{margin:14px 0 0 20px}
.drawer ol li{margin-bottom:10px;font-size:14.5px}
.drawer .links a{display:block;margin-top:8px;font-size:14px}
.check-area{margin-top:18px;border-top:1px solid var(--line);padding-top:14px}
.done-badge{display:inline-block;background:#e8f8ef;color:#15803d;border-radius:99px;padding:2px 12px;font-size:12px}

/* 测试 */
.quizlist{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.quizcard{border:1px solid var(--line);border-radius:12px;padding:16px;background:#fff;cursor:pointer;transition:.15s}
.quizcard:hover{border-color:var(--purple);transform:translateY(-1px)}
.quizcard h3{margin:8px 0}
.qwrap{max-width:720px;margin:0 auto}
.qitem{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:14px}
.qopt{display:block;border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin-top:8px;cursor:pointer;font-size:14.5px;transition:.12s}
.qopt:hover{border-color:var(--blue)}
.qopt.sel{border-color:var(--blue);background:#f0f5ff}
.qopt.right{border-color:var(--green);background:#f0fbf4}
.qopt.wrong{border-color:var(--red);background:#fdf1f1}
.exp{margin-top:10px;background:#f8f9fc;border-radius:10px;padding:10px 12px;font-size:13.5px;color:var(--sub);display:none}
.exp.on{display:block}
.scorebig{text-align:center;padding:20px}
.scorebig b{font-size:46px;display:block}
.qnav{display:flex;justify-content:space-between;align-items:center;margin-top:6px}
.qdots{display:flex;gap:5px;flex-wrap:wrap}
.qdots i{width:10px;height:10px;border-radius:50%;background:#dfe4ec;cursor:pointer}
.qdots i.done{background:var(--blue)}
.qdots i.cur{outline:2px solid var(--blue);outline-offset:2px}

/* 图表 */
.bars{display:flex;align-items:flex-end;gap:6px;height:120px;padding:8px 4px 0}
.bars .bar{flex:1;background:linear-gradient(180deg,var(--blue),#8fb5f7);border-radius:6px 6px 0 0;min-height:3px;position:relative}
.bars .bar em{position:absolute;bottom:-20px;left:0;right:0;text-align:center;font-size:10px;color:var(--sub);font-style:normal}
.bars .bar:hover::after{content:attr(data-v);position:absolute;top:-22px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;font-size:11px;border-radius:6px;padding:2px 8px;white-space:nowrap}

/* 记录表 */
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left}
th{color:var(--sub);font-weight:500;font-size:12.5px}
tr:hover td{background:#f8fafd}

/* 登录 */
.loginbox{max-width:360px;margin:12vh auto 0;text-align:center}
.loginbox .ic{width:64px;height:64px;border-radius:18px;margin:0 auto 14px;background:linear-gradient(135deg,var(--blue),var(--purple));display:flex;align-items:center;justify-content:center}

/* toast */
#toast{position:fixed;left:50%;bottom:36px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 22px;border-radius:99px;font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:200;max-width:80vw}
#toast.on{opacity:.96}

.hidden{display:none!important}
@media (max-width:760px){
  .wrap{padding:14px 12px 90px}
  .card{padding:14px}
  h1{font-size:19px}
  .ring{width:92px;height:92px}
  .topbar nav{overflow-x:auto}
  table{font-size:12.5px}
  th,td{padding:6px 6px}
}