:root{
  --persimmon:#f0642a;      /* 柿子橙 */
  --persimmon-deep:#d84a15;
  --gold:#f5b53d;
  --cream:#fff7ee;
  --paper:#fffdfa;
  --ink:#3a2a1e;
  --ink-soft:#7a6656;
  --leaf:#4f7a3a;
  --line:#f0dcc6;
  --shadow:0 10px 40px rgba(216,74,21,.10);
  --radius:20px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1200px 500px at 80% -10%, #ffe9d6 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 20%, #ffeede 0%, transparent 55%),
    var(--cream);
  min-height:100vh;
  line-height:1.6;
}
a{color:var(--persimmon-deep)}
.wrap{max-width:920px;margin:0 auto;padding:0 20px}

/* 顶栏 */
.nav{display:flex;align-items:center;justify-content:space-between;padding:22px 0}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--ink);text-decoration:none}
.brand .logo{font-size:26px}
.nav .dot{color:var(--ink-soft);font-weight:500;font-size:13px}

/* Hero */
.hero{text-align:center;padding:26px 0 10px}
.hero h1{font-size:clamp(30px,6vw,52px);margin:.2em 0;letter-spacing:-1px;line-height:1.1}
.hero h1 .hl{color:var(--persimmon)}
.hero p.sub{font-size:clamp(15px,2.5vw,19px);color:var(--ink-soft);max-width:600px;margin:10px auto 0}
.pill{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--persimmon-deep);
  padding:5px 14px;border-radius:999px;font-size:13px;font-weight:700;box-shadow:var(--shadow)}

/* 卡片 */
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:26px}
.card + .card{margin-top:20px}

/* 上传区 */
.drop{display:block;width:100%;border:2.5px dashed #f0b48c;border-radius:var(--radius);background:#fffaf4;
  padding:44px 20px;text-align:center;cursor:pointer;transition:.18s;position:relative}
.drop:hover,.drop.drag{border-color:var(--persimmon);background:#fff2e6}
.drop .big{font-size:52px;line-height:1}
.drop h3{margin:14px 0 4px;font-size:20px}
.drop small{color:var(--ink-soft)}
#file{display:none}
.preview{margin-top:4px;text-align:center;display:none}
.preview img{max-width:100%;max-height:420px;border-radius:14px;box-shadow:var(--shadow);cursor:pointer}
.preview .rehint{color:var(--ink-soft);font-size:13px;margin-top:8px}
.actions{display:flex;gap:12px;justify-content:center;margin-top:18px;flex-wrap:wrap}

.btn{border:0;border-radius:999px;padding:14px 30px;font-size:16px;font-weight:800;cursor:pointer;
  transition:.15s;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,var(--persimmon),var(--persimmon-deep));color:#fff;
  box-shadow:0 8px 22px rgba(216,74,21,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(216,74,21,.38)}
.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--cream)}

/* 加载态 */
.loading{display:none;text-align:center;padding:30px}
.loading.on{display:block}
.spinner{width:54px;height:54px;margin:0 auto 16px;border-radius:50%;
  border:5px solid #ffe0c8;border-top-color:var(--persimmon);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.loading p{color:var(--ink-soft);font-weight:600}

/* 说明步骤 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;text-align:center}
.step .n{font-size:28px}
.step b{display:block;margin-top:6px}
.step small{color:var(--ink-soft)}
@media(max-width:640px){.steps{grid-template-columns:1fr}}

/* ---------- 结果页 ---------- */
.stage{position:relative;display:inline-block;max-width:100%;border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow);background:#000}
.stage img{display:block;max-width:100%;height:auto}
.box{position:absolute;border:3px solid rgba(255,255,255,.9);border-radius:8px;
  box-shadow:0 0 0 2px rgba(0,0,0,.25);pointer-events:none}
.box .tag{position:absolute;left:-3px;top:-27px;background:var(--ink);color:#fff;font-size:12px;
  font-weight:800;padding:3px 8px;border-radius:7px;white-space:nowrap}
/* 冠亚季用不同颜色区分 */
.box.r1{border-color:#f5b53d;box-shadow:0 0 0 3px rgba(245,181,61,.45),0 0 18px rgba(245,181,61,.5)}
.box.r1 .tag{background:#f5b53d;color:#3a2a1e}
.box.r2{border-color:#16b8a6;box-shadow:0 0 0 3px rgba(22,184,166,.4),0 0 18px rgba(22,184,166,.45)}
.box.r2 .tag{background:#16b8a6;color:#fff}
.box.r3{border-color:#e8559b;box-shadow:0 0 0 3px rgba(232,85,155,.4),0 0 18px rgba(232,85,155,.45)}
.box.r3 .tag{background:#e8559b;color:#fff}

.stage-wrap{text-align:center}

/* 三杰展示 */
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:8px}
.trio .champ{background:linear-gradient(160deg,#fff7e6,#fff);border:2px solid var(--gold);
  border-radius:18px;padding:16px;text-align:center;position:relative}
.trio .champ .medal{font-size:34px}
.trio .champ .name{font-weight:800;margin:6px 0 2px}
.trio .champ .score{font-size:30px;font-weight:900;color:var(--persimmon-deep)}
.trio .champ .why{font-size:13px;color:var(--ink-soft);margin-top:6px}
@media(max-width:640px){.trio{grid-template-columns:1fr}}

/* 排行榜 */
.row{display:flex;align-items:center;gap:14px;padding:14px 0;border-top:1px solid var(--line)}
.row:first-child{border-top:0}
.row .idx{font-weight:900;color:var(--ink-soft);width:26px;text-align:center;font-size:16px}
.row .info{flex:1;min-width:0}
.row .info .top{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.row .info .lbl{font-weight:800}
.badge{font-size:11px;font-weight:800;padding:2px 8px;border-radius:999px}
.badge.person{background:#e8f0ff;color:#2f5bd0}
.badge.animal{background:#eafbe8;color:var(--leaf)}
.badge.jie{background:var(--gold);color:#3a2a1e}
.row .reason{color:var(--ink-soft);font-size:14px;margin-top:2px}
.meter{height:12px;border-radius:999px;background:#f2e6d8;overflow:hidden;margin-top:8px}
.meter > span{display:block;height:100%;border-radius:999px;
  background:linear-gradient(90deg,#7cc36a,var(--gold),var(--persimmon))}
.scoretag{font-weight:900;font-size:20px;min-width:52px;text-align:right;color:var(--persimmon-deep)}

.overall{background:linear-gradient(160deg,#fff2e6,#fff);border-left:5px solid var(--persimmon);
  border-radius:14px;padding:16px 18px;margin-top:6px;font-size:16px}
.overall b{color:var(--persimmon-deep)}

/* 通行码 */
.codebox{margin-top:16px;text-align:center}
.codebox input{width:100%;max-width:360px;padding:12px 16px;border:1px solid var(--line);
  border-radius:12px;font-size:15px;font-family:inherit;background:#fffaf4;text-align:center}
.codebox input:focus{outline:none;border-color:var(--persimmon);background:#fff}
.codebox small{display:block;color:var(--ink-soft);font-size:12px;margin-top:6px}
.ratehint{display:none;margin-top:14px;text-align:center;color:#b23b28;font-weight:700;
  background:#fff0ee;border:1px solid #f3c4bc;border-radius:12px;padding:12px 14px}

/* 分享卡片 */
.sharecard{text-align:center;margin-top:6px}
.sharecard img{max-width:100%;border-radius:16px;box-shadow:var(--shadow);border:1px solid var(--line)}
.sharecard .hint{color:var(--ink-soft);font-size:13px;margin-top:10px}
.sharetext{background:#fffaf4;border:1px dashed #f0b48c;border-radius:12px;padding:14px;
  color:var(--ink);font-size:14px;margin-top:12px;text-align:left;line-height:1.7}

.foot{text-align:center;color:var(--ink-soft);font-size:13px;padding:34px 0}
.err{background:#fff0ee;border:1px solid #f3c4bc;color:#b23b28;border-radius:14px;padding:16px}
.section-title{font-size:22px;font-weight:800;margin:26px 0 12px;display:flex;align-items:center;gap:8px}

/* ---------- 移动端优化（大部分用户手机打开）---------- */
@media(max-width:640px){
  .wrap{padding:0 14px}
  .nav{padding:16px 0}
  .brand{font-size:18px}
  .nav .dot{display:none}
  .card{padding:18px;border-radius:16px}
  .drop{padding:32px 14px}
  .drop .big{font-size:44px}
  .drop h3{font-size:18px}
  .hero{padding:14px 0 6px}
  .btn{width:100%;padding:15px 20px;font-size:16px}
  .actions{flex-direction:column}
  .box .tag{font-size:10px;padding:2px 6px;top:-22px}
  .box{border-width:2px}
  .crown{font-size:18px;top:-20px}
  .row .scoretag{font-size:18px;min-width:40px}
  .trio .champ .score{font-size:26px}
  .section-title{font-size:19px;margin:22px 0 10px}
  .hero h1{font-size:30px;letter-spacing:-.5px}
  .hero p.sub{font-size:15px;margin-top:8px}
  .pill{font-size:12px;padding:4px 12px}
  .drop{padding:28px 14px}
  .drop h3{font-size:17px;margin:10px 0 4px}
  .card + .card{margin-top:14px}
}
/* 触摸目标与文字缩放 */
@media(max-width:400px){
  .hero h1{font-size:27px}
  .box .tag{font-size:9px}
}