/* ============ 游戏站共享设计系统（浅色 / 深色双主题） ============ */
/* 主题由 <html data-theme="light|dark"> 控制，默认深色；切换见 theme.js */

/* ---------------- 深色（默认） ---------------- */
:root{
  --bg:#0a0e17;
  --bg-2:#0d1424;
  --glow-1:rgba(86,124,246,.18);
  --glow-2:rgba(40,200,222,.10);
  --glow-3:rgba(124,108,246,.10);

  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.085);
  --panel-solid:#131b2d;
  --elevated:#161f33;

  --border:rgba(255,255,255,.085);
  --border-strong:rgba(255,255,255,.17);
  --hairline:rgba(255,255,255,.06);

  --text:#e9eef9;
  --muted:#95a2bd;
  --faint:#68748f;

  --primary:#5b82f6;
  --primary-2:#7a66f2;
  --primary-ink:#ffffff;
  --cyan:#33cddd;
  --green:#34d399;
  --amber:#f6b73f;
  --red:#f2627e;

  --input-bg:rgba(0,0,0,.28);
  --topbar-bg:rgba(10,14,23,.72);
  --modal-bg:#151d30;
  --toast-bg:rgba(19,26,42,.96);
  --code-bg:rgba(0,0,0,.30);
  --overlay-bg:rgba(7,10,18,.74);
  --board-bg:rgba(255,255,255,.035);
  --cell:rgba(255,255,255,.06);
  --cell-2:rgba(255,255,255,.11);
  --stone-b:#0c111d;
  --stone-w:#f3f6fc;

  --shadow:0 24px 60px -24px rgba(0,0,0,.72);
  --shadow-sm:0 8px 22px -12px rgba(0,0,0,.62);
  --ring:rgba(91,130,246,.35);
  --selection:rgba(91,130,246,.38);
  --avatar-grad:linear-gradient(135deg,#5b82f6,#33cddd);
  --radius:18px;
  --radius-sm:12px;
  --safe-b:env(safe-area-inset-bottom,0px);
  color-scheme:dark;
}

/* ---------------- 浅色 ---------------- */
[data-theme="light"]{
  --bg:#edf0f6;
  --bg-2:#e3e8f2;
  --glow-1:rgba(80,118,240,.14);
  --glow-2:rgba(20,170,190,.10);
  --glow-3:rgba(120,100,240,.08);

  --panel:#ffffff;
  --panel-2:#f3f6fb;
  --panel-solid:#ffffff;
  --elevated:#ffffff;

  --border:#e3e8f2;
  --border-strong:#ccd6e6;
  --hairline:#eef1f7;

  --text:#1a2336;
  --muted:#5b6985;
  --faint:#8b97af;

  --primary:#3f6ef0;
  --primary-2:#6a5cf0;
  --primary-ink:#ffffff;
  --cyan:#0a8fa6;
  --green:#0f9f6e;
  --amber:#c8860c;
  --red:#e03d63;

  --input-bg:#f0f3f9;
  --topbar-bg:rgba(255,255,255,.80);
  --modal-bg:#ffffff;
  --toast-bg:rgba(255,255,255,.98);
  --code-bg:#f0f3f9;
  --overlay-bg:rgba(32,42,66,.34);
  --board-bg:#f6f8fc;
  --cell:#eef2f9;
  --cell-2:#e1e8f4;
  --stone-b:#222a3c;
  --stone-w:#ffffff;

  --shadow:0 26px 60px -28px rgba(42,62,104,.40);
  --shadow-sm:0 10px 24px -14px rgba(42,62,104,.30);
  --ring:rgba(63,110,240,.30);
  --selection:rgba(63,110,240,.30);
  --avatar-grad:linear-gradient(135deg,#3f6ef0,#1fb6c9);
  color-scheme:light;
}

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:
    radial-gradient(1150px 540px at 10% -10%,var(--glow-1),transparent 60%),
    radial-gradient(950px 500px at 100% 0%,var(--glow-2),transparent 55%),
    radial-gradient(850px 620px at 50% 122%,var(--glow-3),transparent 60%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%);
  background-attachment:fixed;
  min-height:100vh;
  line-height:1.5;
  letter-spacing:.1px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* 主题切换时仅过渡颜色，不动 transform，避免与交互动效冲突 */
body,.panel,.mode-card,.gcard,.btn,.input,.select,.topbar,.stat,.game-stage,.conn,
.player-pill,.toast,.overlay .modal,.seg button,.room-code-box,.icon-btn,.chip{
  transition:background-color .28s ease,border-color .28s ease,color .28s ease,box-shadow .28s ease;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select{font-family:inherit}
a{color:inherit;text-decoration:none}
canvas{display:block;touch-action:none}
::selection{background:var(--selection)}
.ic{display:inline-block;vertical-align:-.18em;flex:none}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:99px;border:3px solid transparent;background-clip:content-box}
::-webkit-scrollbar-track{background:transparent}

/* ---------------- 顶部栏 / 站点头部 ---------------- */
.topbar{
  position:sticky;top:0;z-index:40;
  display:flex;align-items:center;gap:11px;
  padding:11px 14px;
  background:var(--topbar-bg);
  backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);
  border-bottom:1px solid var(--border);
}
.topbar .back{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;color:var(--muted);
  padding:8px 13px 8px 11px;border-radius:999px;border:1px solid var(--border);
  background:var(--panel);transition:.2s;white-space:nowrap;
}
.topbar .back .ic{width:16px;height:16px}
.topbar .back:hover{color:var(--text);border-color:var(--border-strong);background:var(--panel-2);transform:translateX(-1px)}
.topbar .gtitle{font-weight:700;font-size:16px;display:flex;align-items:center;gap:9px;min-width:0}
.topbar .gtitle .tt-icon{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;color:#fff;flex:none;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28),0 4px 12px -4px rgba(0,0,0,.5)}
.topbar .gtitle .tt-icon .ic{width:18px;height:18px}
.topbar .spacer{flex:1}

.icon-btn{
  width:38px;height:38px;border-radius:11px;display:inline-grid;place-items:center;
  color:var(--muted);background:var(--panel);border:1px solid var(--border);
  transition:.18s;flex:none;
}
.icon-btn .ic{width:19px;height:19px}
.icon-btn:hover{color:var(--text);background:var(--panel-2);border-color:var(--border-strong);transform:translateY(-1px)}
.icon-btn:active{transform:scale(.93)}
.top-actions{display:flex;align-items:center;gap:8px}

.conn{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:600;color:var(--muted);
  padding:7px 12px;border-radius:999px;border:1px solid var(--border);
  background:var(--panel);white-space:nowrap;
}
.conn .dot{width:8px;height:8px;border-radius:50%;background:var(--faint);box-shadow:0 0 0 3px color-mix(in srgb,var(--faint) 20%,transparent)}
.conn.online{color:var(--green);border-color:color-mix(in srgb,var(--green) 38%,transparent)}
.conn.online .dot{background:var(--green);box-shadow:0 0 0 3px color-mix(in srgb,var(--green) 22%,transparent);animation:pulse 1.9s infinite}
.conn.waiting{color:var(--muted)}
.conn.waiting .dot{background:var(--amber)!important}
.conn.host{color:var(--amber);border-color:color-mix(in srgb,var(--amber) 38%,transparent)}
.conn.host .dot{background:var(--amber);box-shadow:0 0 0 3px color-mix(in srgb,var(--amber) 22%,transparent);animation:pulse 1.9s infinite}
@keyframes pulse{50%{opacity:.45}}

/* 首页站点头 */
.site-header{
  position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:12px;
  padding:11px 16px;margin:0 calc(-1 * var(--side-pad,0px));
  background:var(--topbar-bg);backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);
  border-bottom:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.3px;min-width:0}
.brand .logo{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;color:#fff;flex:none;
  background:linear-gradient(140deg,var(--primary),var(--cyan));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 8px 20px -8px var(--ring)}
.brand .logo .ic{width:21px;height:21px}
.brand small{display:block;font-size:11px;font-weight:600;color:var(--muted);letter-spacing:1.5px;text-transform:uppercase}

/* ---------------- 页面容器 ---------------- */
.wrap{max-width:1120px;margin:0 auto;padding:22px 16px 64px}
.wrap.narrow{max-width:780px}
.center-narrow{max-width:620px;margin:0 auto}

/* ---------------- 英雄区 ---------------- */
.hero{position:relative;border-radius:24px;padding:38px 30px;margin-bottom:26px;overflow:hidden;
  background:
    radial-gradient(600px 260px at 92% -30%,color-mix(in srgb,var(--cyan) 20%,transparent),transparent 60%),
    linear-gradient(140deg,color-mix(in srgb,var(--primary) 20%,var(--panel)),var(--panel));
  border:1px solid var(--border-strong);box-shadow:var(--shadow)}
[data-theme="light"] .hero{background:
    radial-gradient(600px 260px at 92% -30%,color-mix(in srgb,var(--cyan) 14%,transparent),transparent 60%),
    linear-gradient(140deg,#fff,#f4f7fc);}
.hero::after{content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,color-mix(in srgb,var(--primary) 26%,transparent),transparent 68%);pointer-events:none}
.hero h1{font-size:clamp(26px,5vw,40px);font-weight:900;letter-spacing:.6px;display:flex;align-items:center;gap:13px}
.hero h1 .hero-ic{width:clamp(34px,6vw,46px);height:clamp(34px,6vw,46px);border-radius:14px;display:grid;place-items:center;color:#fff;
  background:linear-gradient(140deg,var(--primary),var(--cyan));box-shadow:0 12px 26px -10px var(--ring)}
.hero p{color:var(--muted);margin-top:10px;font-size:15px;max-width:580px}
.hero .search{margin-top:20px;display:flex;max-width:480px}
.hero .search input{flex:1;border-radius:13px 0 0 13px}
.hero .search button{border-radius:0 13px 13px 0;border:1px solid var(--border-strong);padding:0 20px;font-weight:700;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));color:var(--primary-ink);display:inline-flex;align-items:center;gap:7px;transition:.18s}
.hero .search button:hover{filter:brightness(1.07)}
.hero .search button:active{transform:scale(.98)}

.game-hero{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.big-icon,.game-hero .big-emoji{
  width:66px;height:66px;border-radius:19px;display:grid;place-items:center;flex:none;color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28),var(--shadow-sm)}
.big-icon .ic,.game-hero .big-emoji .ic{width:36px;height:36px}
.game-hero h1{font-size:25px;font-weight:850;letter-spacing:.4px}
.game-hero p{color:var(--muted);font-size:14px;margin-top:3px}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 18px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:650;color:var(--text);
  background:var(--panel-2);border:1px solid var(--border-strong);
  transition:transform .12s cubic-bezier(.2,.8,.3,1),background .2s,border-color .2s,box-shadow .2s,filter .2s;
  user-select:none;
}
.btn .ic{width:18px;height:18px}
.btn:hover{background:color-mix(in srgb,var(--text) 9%,transparent)}
.btn:active{transform:scale(.965)}
.btn:disabled{opacity:.42;cursor:not-allowed;transform:none}
.btn.primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  border-color:transparent;color:var(--primary-ink);
  box-shadow:0 12px 28px -12px var(--ring);
}
.btn.primary:hover{box-shadow:0 16px 34px -12px var(--ring);filter:brightness(1.07);background:linear-gradient(135deg,var(--primary),var(--primary-2))}
.btn.cyan{background:linear-gradient(135deg,#0a93ad,var(--cyan));border-color:transparent;color:#032029}
[data-theme="light"] .btn.cyan{color:#fff}
.btn.green{background:linear-gradient(135deg,#0a9a6a,var(--green));border-color:transparent;color:#032018}
[data-theme="light"] .btn.green{color:#fff}
.btn.danger{background:linear-gradient(135deg,#d83257,var(--red));border-color:transparent;color:#fff}
.btn.ghost{background:transparent;border-color:transparent}
.btn.ghost:hover{background:var(--panel-2)}
.btn.block{width:100%}
.btn.sm{padding:8px 13px;font-size:13.5px;border-radius:10px}
.btn.sm .ic{width:16px;height:16px}
.btn.lg{padding:15px 22px;font-size:16.5px;border-radius:14px}

/* ---------------- 面板/卡片 ---------------- */
.panel{
  background:var(--panel);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;
  box-shadow:var(--shadow-sm);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
[data-theme="light"] .panel{backdrop-filter:none;-webkit-backdrop-filter:none}
.panel + .panel{margin-top:16px}
.panel h2{font-size:16.5px;font-weight:750;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.panel h2 .ic{width:19px;height:19px;color:var(--primary)}
.panel h3{font-size:13px;font-weight:700;color:var(--muted);margin:16px 0 8px;text-transform:uppercase;letter-spacing:.8px}
.muted{color:var(--muted)}
.small{font-size:13px}
.tac{text-align:center}
.row{display:flex;gap:10px;align-items:center}
.row.wrap{flex-wrap:wrap}
.col{display:flex;flex-direction:column;gap:10px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.grid2{grid-template-columns:1fr}}
.spread{display:flex;align-items:center;justify-content:space-between;gap:10px}
.mt8{margin-top:8px}.mt16{margin-top:16px}.mt24{margin-top:24px}
.gap8{gap:8px}

/* ---------------- 模式选择卡 ---------------- */
.mode-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(224px,1fr));gap:14px}
.mode-card{
  text-align:left;padding:18px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--border);
  transition:transform .2s cubic-bezier(.2,.8,.3,1),border-color .2s,background .2s,box-shadow .2s;
  position:relative;overflow:hidden;
}
.mode-card:hover{transform:translateY(-4px);border-color:var(--border-strong);background:var(--panel-2);box-shadow:var(--shadow-sm)}
.mode-card:active{transform:translateY(-1px) scale(.99)}
.mode-card .mc-icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;margin-bottom:12px;color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28)}
.mode-card .mc-icon .ic{width:25px;height:25px}
.mode-card .mc-emoji{display:none}
.mode-card .mc-title{font-weight:750;font-size:16px;margin-bottom:4px;display:flex;align-items:center;gap:7px}
.mode-card .mc-desc{font-size:13px;color:var(--muted);line-height:1.45}
.mode-card .glow{position:absolute;right:-34px;top:-34px;width:120px;height:120px;border-radius:50%;filter:blur(34px);opacity:.28;pointer-events:none}
.mode-card .mc-arrow{position:absolute;right:16px;bottom:16px;color:var(--faint);opacity:0;transform:translateX(-6px);transition:.2s}
.mode-card:hover .mc-arrow{opacity:1;transform:translateX(0)}
.mode-card .mc-arrow .ic{width:18px;height:18px}

/* ---------------- 表单 ---------------- */
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:13px}
.field label{font-size:13px;color:var(--muted);font-weight:650}
.input,.select{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  background:var(--input-bg);border:1px solid var(--border-strong);
  color:var(--text);font-size:15px;outline:none;transition:.18s;
}
.input:focus,.select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--ring)}
.input::placeholder{color:var(--faint)}
.select option{background:var(--modal-bg);color:var(--text)}
.seg{display:flex;gap:7px;flex-wrap:wrap}
.seg button{
  flex:1;min-width:64px;padding:10px 8px;border-radius:11px;font-size:13.5px;font-weight:650;
  background:var(--input-bg);border:1px solid var(--border);color:var(--muted);transition:.16s;
}
.seg button:hover{color:var(--text);border-color:var(--border-strong)}
.seg button.on{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:var(--primary-ink);border-color:transparent;
  box-shadow:0 8px 20px -10px var(--ring)}

/* ---------------- 房间大厅 ---------------- */
.room-code-box{
  display:flex;align-items:center;justify-content:center;gap:10px;
  padding:20px;border-radius:var(--radius-sm);
  background:var(--code-bg);border:1px dashed var(--border-strong);margin-bottom:14px;
}
.room-code-box .code{font-size:35px;font-weight:850;letter-spacing:10px;text-indent:10px;font-variant-numeric:tabular-nums;
  background:linear-gradient(135deg,var(--primary),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.players{display:flex;flex-direction:column;gap:8px;margin:12px 0}
.player-pill{
  display:flex;align-items:center;gap:11px;padding:10px 13px;border-radius:12px;
  background:var(--panel-2);border:1px solid var(--border);
}
.player-pill .avatar{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;font-size:13.5px;font-weight:800;color:#fff;flex:none;
  background:var(--avatar-grad);letter-spacing:.2px}
.player-pill .pname{font-weight:650;font-size:14.5px}
.player-pill .ptag{margin-left:auto;font-size:12px;color:var(--muted);font-weight:600}
.player-pill.you{border-color:color-mix(in srgb,var(--primary) 55%,transparent);box-shadow:0 0 0 1px color-mix(in srgb,var(--primary) 35%,transparent) inset}
.player-pill.empty{opacity:.6;border-style:dashed}
.player-pill.empty .avatar{background:var(--cell);color:var(--faint)}
.wait-dots::after{content:'';animation:dots 1.4s steps(4,end) infinite}
@keyframes dots{0%{content:''}25%{content:'.'}50%{content:'..'}75%{content:'...'}}
.lobby-tip{margin:12px 0 0;padding:10px 12px;border-radius:10px;font-size:12.5px;line-height:1.6;color:var(--muted);
  background:var(--panel-2);border:1px solid var(--border)}
.lobby-tip b{color:var(--primary)}

/* ---------------- 弹层 ---------------- */
.overlay{
  position:fixed;inset:0;z-index:80;display:none;
  align-items:center;justify-content:center;padding:20px;
  background:var(--overlay-bg);backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px);
}
.overlay.show{display:flex;animation:fade .22s ease}
.overlay .modal{
  width:100%;max-width:436px;background:var(--modal-bg);
  border:1px solid var(--border-strong);border-radius:20px;padding:23px;
  box-shadow:var(--shadow);animation:pop .26s cubic-bezier(.2,.9,.3,1.32);
}
.overlay .modal h2{font-size:18.5px;font-weight:800;margin-bottom:7px;display:flex;align-items:center;gap:9px}
.overlay .modal h2 .ic{width:20px;height:20px;color:var(--primary)}
.overlay .modal .mdesc{color:var(--muted);font-size:14px;margin-bottom:16px}
@keyframes fade{from{opacity:0}}
@keyframes pop{from{transform:scale(.92) translateY(8px);opacity:0}}

/* ---------------- Toast ---------------- */
.toast-wrap{position:fixed;left:50%;bottom:calc(22px + var(--safe-b));transform:translateX(-50%);z-index:120;
  display:flex;flex-direction:column;gap:9px;align-items:center;width:max-content;max-width:92vw}
.toast{
  padding:11px 18px;border-radius:999px;font-size:14px;font-weight:650;
  background:var(--toast-bg);border:1px solid var(--border-strong);color:var(--text);
  box-shadow:var(--shadow);animation:toastIn .26s cubic-bezier(.2,.9,.3,1.2);display:flex;align-items:center;gap:8px;
}
.toast .ic{width:17px;height:17px}
.toast.ok{border-color:color-mix(in srgb,var(--green) 55%,transparent);color:var(--green)}
.toast.err{border-color:color-mix(in srgb,var(--red) 60%,transparent);color:var(--red)}
.toast.info{border-color:color-mix(in srgb,var(--cyan) 50%,transparent)}
@keyframes toastIn{from{transform:translateY(16px);opacity:0}}
.toast.out{animation:toastOut .25s forwards}
@keyframes toastOut{to{transform:translateY(12px);opacity:0}}

/* ---------------- 徽标/标签 ---------------- */
.badge{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:750;padding:3px 9px;border-radius:999px;letter-spacing:.4px}
.badge.net{background:color-mix(in srgb,var(--green) 15%,transparent);color:var(--green);border:1px solid color-mix(in srgb,var(--green) 32%,transparent)}
.badge.hot{background:color-mix(in srgb,var(--red) 15%,transparent);color:var(--red);border:1px solid color-mix(in srgb,var(--red) 32%,transparent)}
.badge.new{background:color-mix(in srgb,var(--cyan) 15%,transparent);color:var(--cyan);border:1px solid color-mix(in srgb,var(--cyan) 32%,transparent)}
.badge.pve{background:color-mix(in srgb,var(--amber) 16%,transparent);color:var(--amber);border:1px solid color-mix(in srgb,var(--amber) 32%,transparent)}

/* ---------------- 首页筛选 chips / 卡片 ---------------- */
.chips{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:20px}
.chip,.chips button{padding:9px 16px;border-radius:999px;font-size:13.5px;font-weight:650;color:var(--muted);
  background:var(--panel);border:1px solid var(--border);transition:.18s;display:inline-flex;align-items:center;gap:7px}
.chip .ic,.chips button .ic{width:16px;height:16px}
.chip:hover,.chips button:hover{color:var(--text);border-color:var(--border-strong);transform:translateY(-1px)}
.chips button.on{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));border-color:transparent;box-shadow:0 8px 20px -10px var(--ring)}
.sec-title{font-size:19px;font-weight:850;margin:28px 4px 15px;display:flex;align-items:center;gap:10px;letter-spacing:.3px}
.sec-title .ic{width:21px;height:21px;color:var(--primary)}
.sec-title .cnt{font-size:12px;color:var(--muted);font-weight:650;background:var(--panel);border:1px solid var(--border);padding:2px 9px;border-radius:999px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(252px,1fr));gap:14px}
.gcard{display:flex;gap:13px;align-items:center;padding:14px;border-radius:17px;
  background:var(--panel);border:1px solid var(--border);
  transition:transform .22s cubic-bezier(.2,.8,.3,1),border-color .2s,background .2s,box-shadow .22s;
  position:relative;overflow:hidden}
.gcard:hover{transform:translateY(-4px);border-color:var(--border-strong);background:var(--panel-2);box-shadow:var(--shadow-sm)}
.gcard:active{transform:translateY(-1px)}
.gicon{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;flex:none;color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28),0 10px 22px -12px rgba(0,0,0,.6)}
.gicon .ic{width:30px;height:30px}
.gbody{min-width:0;flex:1}
.gtitle{font-weight:750;font-size:16px;display:flex;align-items:center;gap:7px}
.gdesc{font-size:12.5px;color:var(--muted);margin-top:3px;line-height:1.42}
.gbadges{display:flex;gap:5px;margin-top:7px;flex-wrap:wrap;align-items:center}
.ext-tag{font-size:11px;color:var(--faint);display:inline-flex;align-items:center;gap:3px;font-weight:600}
.ext-tag .ic{width:12px;height:12px}
.gcard .g-arrow{color:var(--faint);opacity:0;transform:translateX(-6px);transition:.2s;flex:none}
.gcard:hover .g-arrow{opacity:1;transform:translateX(0)}
.gcard .g-arrow .ic{width:18px;height:18px}
/* 外链精品卡：竖向、更大、带专属视觉 */
.ext-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.ext-card{display:flex;flex-direction:column;gap:0;padding:0;border-radius:19px;overflow:hidden;
  background:var(--panel);border:1px solid var(--border);
  transition:transform .24s cubic-bezier(.2,.8,.3,1),border-color .2s,box-shadow .24s;position:relative}
.ext-card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.ext-card .ec-banner{height:92px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;position:relative;overflow:hidden}
.ext-card .ec-banner::after{content:"";position:absolute;inset:0;
  background:radial-gradient(220px 120px at 88% -40%,rgba(255,255,255,.35),transparent 60%)}
.ext-card .ec-banner .ec-ic{width:52px;height:52px;border-radius:15px;background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.28);display:grid;place-items:center;color:#fff;backdrop-filter:blur(4px)}
.ext-card .ec-banner .ec-ic .ic{width:28px;height:28px}
.ext-card .ec-banner .ec-go{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.3);
  display:grid;place-items:center;color:#fff;transition:.22s}
.ext-card:hover .ec-go{transform:translate(2px,-2px) scale(1.06);background:rgba(255,255,255,.3)}
.ext-card .ec-body{padding:14px 16px 16px}
.ext-card .ec-title{font-weight:800;font-size:16.5px;letter-spacing:.3px}
.ext-card .ec-desc{font-size:12.5px;color:var(--muted);margin-top:4px;display:flex;align-items:center;gap:6px}
.ext-card .ec-desc .ic{width:13px;height:13px}
.foot-links{display:flex;gap:18px;flex-wrap:wrap;margin-top:38px;padding-top:22px;border-top:1px solid var(--border);
  color:var(--muted);font-size:13.5px;align-items:center}
.foot-links a{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border:1px solid var(--border);border-radius:999px;background:var(--panel);transition:.18s}
.foot-links a .ic{width:15px;height:15px}
.foot-links a:hover{color:var(--text);border-color:var(--border-strong);transform:translateY(-1px)}
.card-enter{animation:cardIn .45s cubic-bezier(.2,.8,.3,1) both}
@keyframes cardIn{from{opacity:0;transform:translateY(14px)}}

/* ---------------- 游戏内 HUD ---------------- */
.hud{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.stat{
  background:var(--panel);border:1px solid var(--border);border-radius:13px;
  padding:9px 15px;min-width:76px;text-align:center;position:relative;overflow:hidden;
}
.stat .k{font-size:10.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.7px;font-weight:700;display:flex;align-items:center;gap:4px;justify-content:center}
.stat .k .ic{width:12px;height:12px}
.stat .v{font-size:20px;font-weight:850;font-variant-numeric:tabular-nums;line-height:1.25}
.stat.pop .v{animation:statPop .32s cubic-bezier(.2,.9,.3,1.4)}
@keyframes statPop{0%{transform:scale(1)}45%{transform:scale(1.22);color:var(--primary)}100%{transform:scale(1)}}
.game-stage{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow-sm);min-height:120px;
}
.game-stage .stage-inner{display:flex;justify-content:center;align-items:center;flex-direction:column;gap:14px}

/* 覆盖层（游戏结束等） */
.game-overlay{
  position:absolute;inset:0;display:none;align-items:center;justify-content:center;flex-direction:column;gap:13px;
  background:var(--overlay-bg);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border-radius:var(--radius);z-index:5;text-align:center;padding:20px;
}
.game-overlay.show{display:flex;animation:fade .25s ease}
.game-overlay .go-title{font-size:27px;font-weight:900;letter-spacing:.5px;animation:pop .3s cubic-bezier(.2,.9,.3,1.3)}
.game-overlay .go-ic{width:64px;height:64px;border-radius:18px;display:grid;place-items:center;color:#fff;background:linear-gradient(140deg,var(--primary),var(--cyan));
  box-shadow:var(--shadow);animation:pop .34s cubic-bezier(.2,.9,.3,1.3)}
.game-overlay .go-ic .ic{width:34px;height:34px}
.pos-rel{position:relative}

/* 移动端操作提示 */
.touch-hint{font-size:12.5px;color:var(--muted);text-align:center;margin-top:12px;line-height:1.6}
.kbd{font-size:11.5px;padding:2px 7px;border-radius:6px;background:var(--cell-2);border:1px solid var(--border-strong);font-family:ui-monospace,monospace}

/* 全屏：根元素铺满 */
:fullscreen{background:var(--bg)}
:-webkit-full-screen{background:var(--bg)}
body.is-fullscreen .topbar,.fullscreen-hide{display:none}

@media(max-width:560px){
  .wrap{padding:16px 12px 50px}
  .hero{padding:28px 20px}
  .big-icon,.game-hero .big-emoji{width:56px;height:56px;border-radius:16px}
  .big-icon .ic,.game-hero .big-emoji .ic{width:30px;height:30px}
  .game-hero h1{font-size:20.5px}
  .room-code-box .code{font-size:28px;letter-spacing:7px;text-indent:7px}
  .conn .conn-label{display:none}
  .topbar .back span{display:none}
  .topbar .back{padding:0 10px}
  .topbar .gtitle{gap:8px;min-width:0}
  .topbar .gtitle .tt-icon{width:28px;height:28px;border-radius:9px}
  .topbar .gtitle>span:last-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

/* ============================================================
   联机大厅增强（在线玩家 / 邀请 / 掉线接管 / 观战 / 暂停横幅）
   ============================================================ */
.online-list{display:flex;flex-direction:column;gap:8px;margin:10px 0 4px}
.online-row{
  display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:12px;
  background:var(--panel-2);border:1px solid var(--border);min-width:0;
}
.online-row .avatar{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  font-size:13px;font-weight:800;color:#fff;background:var(--avatar-grad);flex:none}
.online-row .oname{font-weight:650;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.online-row .ometa{margin-left:auto;font-size:12px;color:var(--faint);white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;max-width:44%}
.online-row .ometa.busy{color:var(--amber)}
.online-row .on-invite{flex:none;padding:6px 12px;font-size:12.5px}
.online-empty{font-size:13px;color:var(--faint);text-align:center;padding:14px 0;border:1px dashed var(--border);border-radius:12px}

/* 掉线座位：保留 45 秒等待重连，可被他人接管 */
.player-pill.offline{opacity:.72;border-style:dashed}
.player-pill.offline .avatar{background:var(--cell);color:var(--faint)}
.player-pill .offline-tag{display:inline-flex;align-items:center;gap:4px;color:var(--amber);font-size:12px;font-weight:700}
.player-pill .offline-tag .ic{width:13px;height:13px;animation:pulse 1.6s infinite}
.player-pill .takeover{flex:none;margin-left:4px;padding:5px 11px;font-size:12px;border-radius:9px;
  background:color-mix(in srgb,var(--cyan) 16%,transparent);border:1px solid color-mix(in srgb,var(--cyan) 40%,transparent);
  color:var(--cyan);font-weight:700;transition:.16s}
.player-pill .takeover:hover{filter:brightness(1.12)}
.player-pill.spectator .avatar{background:var(--cell);color:var(--cyan)}

/* 观战者加入复选框 */
.spectator-opt{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:13.5px;
  color:var(--muted);cursor:pointer;user-select:none}
.spectator-opt input{width:16px;height:16px;accent-color:var(--primary);flex:none}

/* 房主暂停按钮强调 */
.btn.warn{background:color-mix(in srgb,var(--amber) 16%,transparent);
  border-color:color-mix(in srgb,var(--amber) 45%,transparent);color:var(--amber);font-weight:700}

/* 全局暂停横幅（全员可见，房主可继续） */
.pause-banner{
  position:fixed;top:58px;left:50%;transform:translateX(-50%);z-index:70;
  display:flex;align-items:center;gap:10px;max-width:92vw;
  padding:9px 14px;border-radius:999px;font-size:13.5px;font-weight:700;color:var(--amber);
  background:color-mix(in srgb,var(--modal-bg) 96%,transparent);
  border:1px solid color-mix(in srgb,var(--amber) 45%,transparent);
  box-shadow:var(--shadow-sm);animation:fade .2s ease;white-space:nowrap;
}
.pause-banner .pb-bar{width:14px;height:14px;flex:none;border-radius:3px;position:relative;overflow:hidden}
.pause-banner .pb-bar::before{content:"";position:absolute;left:2px;top:2px;bottom:2px;width:3px;
  background:var(--amber);border-radius:1px;box-shadow:5px 0 0 var(--amber)}
.pause-banner .pb-go{padding:4px 12px;font-size:12.5px;border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));color:var(--primary-ink);font-weight:700}
@media(max-width:560px){
  .pause-banner{top:52px;font-size:12.5px;padding:7px 12px}
  .online-row .ometa{max-width:34%}
  .player-pill{gap:8px;padding:9px 10px}
  .player-pill .pname{font-size:13.5px}
}

/* ============================================================
   头像图片 / 全屏游戏 / 邀请（新增）
   ============================================================ */
.player-pill .avatar,.online-row .avatar{position:relative;overflow:hidden}
.player-pill .avatar .av-fb,.online-row .avatar .av-fb{position:absolute;inset:0;display:grid;place-items:center;font-size:12px;font-weight:800}
.player-pill .avatar img,.online-row .avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1}
.player-pill .avatar .ic,.online-row .avatar .ic{position:relative;z-index:0}

body.is-fullscreen{overflow:hidden;padding-bottom:0!important}
body.is-fullscreen .topbar,body.is-fullscreen .site-header,body.is-fullscreen .app-dock,
body.is-fullscreen .play-float,body.is-fullscreen .play-badge,body.is-fullscreen .site-header,
body.is-fullscreen .game-hero{display:none!important}
body.is-fullscreen .wrap{padding:0!important;max-width:none!important;width:100%!important}
body.is-fullscreen [data-screen="game"]{position:fixed;inset:0;z-index:900;background:var(--bg);display:flex!important;flex-direction:column;align-items:center;justify-content:center;padding:10px;overflow:auto}
body.is-fullscreen [data-screen="game"] .turn-banner{margin-bottom:6px}
body.is-fullscreen [data-screen="game"] .board-box{width:min(92vh,94vw);max-width:none;margin:0 auto}
body.is-fullscreen [data-screen="game"] .board-box canvas{width:100%!important;max-width:none}
body.is-fullscreen [data-screen="game"] .g-controls{margin-top:6px}
body.is-fullscreen .game-stage{width:min(96vw,1200px);min-height:auto}
body.is-fullscreen .game-stage .stage-inner{min-height:calc(100vh - 40px)}
body.is-fullscreen .pause-banner{top:10px}
.fs-exit{position:fixed;top:calc(12px + env(safe-area-inset-top,0px));right:12px;z-index:1200;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;color:var(--text);background:color-mix(in srgb,var(--panel-solid) 86%,transparent);border:1px solid var(--border-strong);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.fs-exit:hover{background:var(--panel-2)}
.fs-exit .ic{width:19px;height:19px}
:fullscreen .topbar,:fullscreen .site-header,:fullscreen .app-dock,:fullscreen .play-float,:fullscreen .play-badge{display:none!important}
:-webkit-full-screen .topbar,:-webkit-full-screen .site-header,:-webkit-full-screen .app-dock,:-webkit-full-screen .play-float,:-webkit-full-screen .play-badge{display:none!important}

.play-badge{display:inline-flex;align-items:center;gap:5px;padding:5px 10px;border-radius:999px;font-size:11px;font-weight:700;color:var(--muted);background:var(--panel);border:1px solid var(--border);white-space:nowrap}
.play-badge .ic{width:13px;height:13px;color:var(--primary)}
.play-float{position:fixed;right:14px;bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:45;box-shadow:var(--shadow-sm)}

/* 通用头像（游戏大厅 / 邀请弹窗） */
.avatar{position:relative;display:inline-grid;place-items:center;width:32px;height:32px;border-radius:10px;flex:none;
  color:#fff;font-size:13px;font-weight:800;background:var(--avatar-grad);box-shadow:inset 0 1px 0 rgba(255,255,255,.3);overflow:hidden;letter-spacing:.2px}
.avatar .av-fb{position:absolute;inset:0;display:grid;place-items:center}
.avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1}
.avatar.xs{width:26px;height:26px;font-size:11px;border-radius:8px}
.avatar.sm{width:34px;height:34px;font-size:13px;border-radius:10px}
.avatar.md{width:44px;height:44px;font-size:16px;border-radius:13px}
.avatar.lg{width:64px;height:64px;font-size:22px;border-radius:18px}
.avatar.ring{box-shadow:0 0 0 3px var(--panel-solid),0 0 0 5px var(--ring)}

/* 全屏：台球 / 通用舞台铺满 */
body.is-fullscreen .table-box{width:min(96vw,1400px)!important;max-width:none!important}
body.is-fullscreen .table-box canvas{width:100%!important}
body.is-fullscreen .stage{width:min(96vw,1400px)!important;max-width:none!important}
:fullscreen .table-box,:fullscreen .stage{max-width:none!important;width:100vw!important}
:-webkit-full-screen .table-box,:-webkit-full-screen .stage{max-width:none!important;width:100vw!important}

/* 游戏页顶栏品牌：与主页/App 顶栏统一 */
.topbar .brand-mini{display:inline-grid;place-items:center;flex:none;text-decoration:none}
.topbar .brand-mini .logo{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;color:#fff;
  background:linear-gradient(140deg,var(--primary),var(--primary-2));box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 8px 18px -10px var(--ring)}
.topbar .brand-mini .logo .ic{width:18px;height:18px}
.topbar .brand-mini:hover{transform:translateY(-1px)}
@media(max-width:560px){.topbar .brand-mini .logo{width:30px;height:30px;border-radius:9px}}
@media(max-width:560px){.topbar .brand-mini{display:none}.topbar .conn{font-size:11px;padding:6px 8px}.topbar .conn [data-conn-text]{max-width:54px;overflow:hidden;text-overflow:ellipsis}}