:root{
  --bg:#0a2a20;--line:rgba(255,255,255,.12);
  --gold:#ffd36e;--ink:#eaf5ee;--muted:#9dbbab;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}
html,body{height:100%}
body{font-family:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;color:var(--ink);
  background:radial-gradient(900px 480px at 50% -8%,#1c6b4d,transparent 60%),linear-gradient(160deg,#0a2a20,#0c3326 60%,#072019);
  min-height:100vh;display:flex;justify-content:center}
.app{width:100%;max-width:780px;padding:12px;display:flex;flex-direction:column;gap:10px}
.topbar{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px}
.logo{font-size:26px;filter:drop-shadow(0 3px 8px rgba(0,0,0,.4))}
.brand-txt b{font-size:20px;letter-spacing:2px}
.brand-txt small{display:block;font-size:11px;color:var(--muted);letter-spacing:1px}
.tool{background:rgba(255,255,255,.08);border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:8px 12px;font-size:13px;cursor:pointer}
.tool:hover{background:rgba(255,255,255,.16)}
.score{text-align:center;font-size:14px;color:var(--gold);background:rgba(0,0,0,.25);border-radius:10px;padding:6px}

.table{position:relative;background:radial-gradient(120% 120% at 50% 40%,#13663f,#0c4229);
  border-radius:18px;box-shadow:inset 0 0 0 6px rgba(0,0,0,.25),0 14px 34px rgba(0,0,0,.4);
  padding:14px;display:grid;grid-template-columns:110px 1fr 110px;grid-template-rows:auto 1fr auto;gap:8px;min-height:560px}
.seat{display:flex;flex-direction:column;align-items:center;gap:6px}
.seat-top{grid-column:2;grid-row:1}
.seat-left{grid-column:1;grid-row:2;justify-content:center}
.seat-right{grid-column:3;grid-row:2;justify-content:center}
.seat-me{grid-column:1 / span 3;grid-row:3}
.seat-name{font-size:12px;color:var(--gold)}
.backs{display:flex;flex-wrap:wrap;gap:2px;justify-content:center;max-width:220px}
.back{width:15px;height:21px;border-radius:3px;background:linear-gradient(160deg,#1f6f4a,#134a31);border:1px solid rgba(0,0,0,.3)}

.center{grid-column:2;grid-row:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px}
.turn-tag{font-size:13px;color:var(--gold);min-height:18px}
.trick{position:relative;width:230px;height:150px}
.slot{position:absolute;display:flex;gap:2px;flex-wrap:wrap;justify-content:center;align-items:center;min-height:34px}
.slot-top{top:0;left:50%;transform:translateX(-50%)}
.slot-left{left:0;top:50%;transform:translateY(-50%);flex-direction:column}
.slot-right{right:0;top:50%;transform:translateY(-50%);flex-direction:column}
.slot-me{bottom:0;left:50%;transform:translateX(-50%)}
.msg{font-size:12px;color:var(--muted);min-height:16px;text-align:center}

.hand{display:flex;gap:5px;flex-wrap:wrap;justify-content:center;min-height:56px}
.actions{display:flex;gap:8px;justify-content:center;min-height:42px}
.act{background:linear-gradient(180deg,#ffe08a,#ffc24d);color:#0a2a20;font-weight:800;border:none;border-radius:10px;padding:9px 16px;font-size:14px;cursor:pointer}
.act.ghost{background:rgba(255,255,255,.1);color:var(--ink);border:1px solid var(--line)}
.act:disabled{opacity:.4;cursor:default}

.card{position:relative;width:32px;height:44px;border-radius:5px;background:linear-gradient(160deg,#fff,#f2f0e6);
  border:1px solid #cfccbd;box-shadow:0 2px 4px rgba(0,0,0,.35);display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;line-height:1;user-select:none}
.card .st{font-size:12px}
.card.red{color:#c62828}.card.black{color:#1a1a1a}
.card.joker{font-size:11px;width:32px}
.card.small{width:26px;height:36px;font-size:12px}
.card.me{transition:.12s;cursor:pointer}
.card.me:hover{transform:translateY(-6px)}
.card.me.selected{transform:translateY(-10px);outline:2px solid var(--gold)}
.card.win{outline:2px solid #e23b3b}
.card.empty{background:rgba(255,255,255,.06);border:1px dashed var(--line);box-shadow:none}

.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;z-index:30;padding:20px}
.modal[hidden]{display:none}
.modal-card{background:linear-gradient(160deg,#114a37,#0c3326);border:1px solid var(--line);border-radius:18px;padding:26px 22px;max-width:380px;width:100%;text-align:center;box-shadow:0 20px 50px rgba(0,0,0,.5)}
.modal-card h2{font-size:22px;margin-bottom:6px}
.modal-card .sub{color:var(--muted);font-size:13px;margin-bottom:14px}
.suit-pick{display:flex;gap:10px;justify-content:center;margin-top:14px}
.suit-pick button{width:56px;height:56px;font-size:26px;font-weight:800;border-radius:12px;border:1px solid var(--line);cursor:pointer;background:rgba(255,255,255,.1);color:var(--ink)}
.suit-pick button.red{color:#ff8a80}
.suit-pick button.black{color:#b3e5fc}
.modal-btns{display:flex;gap:10px;justify-content:center;margin-top:18px}
@media(max-width:520px){.table{min-height:500px;grid-template-columns:84px 1fr 84px}.card{width:28px;height:40px;font-size:13px}}