/* ===== 益智小游戏乐园 · 共享样式 ===== */
:root{
  --bg1:#FFF1F8; --bg2:#E8F4FF; --bg3:#F3ECFF;
  --card:#FFFFFF; --ink:#3A3357; --muted:#8B85A6;
  --pink:#FF8FB8; --pink-d:#F56A9E;
  --blue:#6DB8FF; --blue-d:#3E97F5;
  --green:#5FD6A6; --green-d:#2FB985;
  --yellow:#FFD166; --yellow-d:#F2B33D;
  --purple:#B79BFF; --purple-d:#9A78F0;
  --shadow:0 10px 30px rgba(120,110,170,.18);
  --radius:22px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,sans-serif;
  color:var(--ink);
  background:linear-gradient(135deg,var(--bg1),var(--bg2) 45%,var(--bg3));
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
}
a{color:inherit;text-decoration:none}

/* 顶栏 */
.topnav{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;
  background:rgba(255,255,255,.78);
  backdrop-filter:blur(10px);
  box-shadow:0 4px 18px rgba(120,110,170,.10);
}
.topnav .back{
  display:inline-flex;align-items:center;gap:6px;
  background:#fff;border:none;border-radius:999px;
  padding:9px 16px;font-size:15px;font-weight:700;color:var(--ink);
  box-shadow:var(--shadow);cursor:pointer;
}
.topnav .title{font-size:19px;font-weight:800}
.topnav .title small{display:block;font-size:12px;font-weight:500;color:var(--muted)}

.wrap{max-width:760px;margin:0 auto;padding:18px 16px 40px}

/* 大厅卡片网格 */
.hub-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:18px;
}
.hub-card{
  position:relative;overflow:hidden;
  background:var(--card);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:18px 16px 16px;
  display:flex;flex-direction:column;gap:8px;
  transition:transform .15s ease;
}
.hub-card:active{transform:scale(.97)}
.hub-card .emo{font-size:42px;line-height:1}
.hub-card .nm{font-size:18px;font-weight:800}
.hub-card .ds{font-size:13px;color:var(--muted);line-height:1.5;min-height:38px}
.hub-card .tag{
  align-self:flex-start;font-size:12px;font-weight:700;color:#fff;
  padding:4px 12px;border-radius:999px;
}
.hub-card.c1 .tag{background:var(--pink-d)}
.hub-card.c2 .tag{background:var(--blue-d)}
.hub-card.c3 .tag{background:var(--green-d)}
.hub-card.c4 .tag{background:var(--yellow-d)}
.hub-card.c5 .tag{background:var(--purple-d)}
.hub-card.c6 .tag{background:#FF9F6B}
.hub-card.c7 .tag{background:#54C7C9}
.hub-card.c8 .tag{background:#F2A65A}
.hub-card.c9 .tag{background:#7C6CF0}
/* 大厅卡片第一名展示 */
.lb-top{
  margin-top:10px;padding:6px 10px;border-radius:10px;
  background:rgba(255,255,255,.65);font-size:12px;font-weight:800;
  color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* 通用面板 */
.panel{
  background:var(--card);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:18px;margin-top:16px;
}
.lead{font-size:14px;color:var(--muted);line-height:1.7;margin:0 0 4px}

/* 按钮 */
.btn{
  border:none;border-radius:999px;cursor:pointer;
  font-size:16px;font-weight:800;color:#fff;
  padding:13px 20px;box-shadow:var(--shadow);
  transition:transform .12s ease,filter .12s ease;
}
.btn:active{transform:scale(.95)}
.btn.primary{background:linear-gradient(135deg,var(--pink),var(--pink-d))}
.btn.blue{background:linear-gradient(135deg,var(--blue),var(--blue-d))}
.btn.green{background:linear-gradient(135deg,var(--green),var(--green-d))}
.btn.ghost{background:#fff;color:var(--ink);border:2px solid #ECE8F7}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.btn-row .btn{flex:1;min-width:120px}

/* 状态条 */
.statusbar{
  display:flex;justify-content:space-around;gap:10px;
  background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);
  padding:12px;margin-top:16px;
}
.statusbar .st{text-align:center;flex:1}
.statusbar .st b{display:block;font-size:22px;font-weight:900}
.statusbar .st span{font-size:12px;color:var(--muted)}

/* 难度选择 */
.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg button{
  border:2px solid #ECE8F7;background:#fff;border-radius:999px;
  padding:9px 16px;font-size:14px;font-weight:700;color:var(--muted);cursor:pointer;
}
.seg button.on{background:linear-gradient(135deg,var(--blue),var(--blue-d));color:#fff;border-color:transparent}
.seg button.locked{opacity:.45;cursor:not-allowed;filter:grayscale(.5)}

/* 弹层提示 */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translateX(-50%) translateY(20px);
  background:rgba(58,51,87,.94);color:#fff;padding:12px 22px;border-radius:999px;
  font-size:15px;font-weight:700;opacity:0;pointer-events:none;transition:.25s;z-index:50;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

.win-banner{
  position:fixed;inset:0;display:none;align-items:center;justify-content:center;
  background:rgba(58,51,87,.45);z-index:60;padding:24px;
}
.win-banner.show{display:flex}
.win-box{
  background:#fff;border-radius:26px;padding:28px 26px;text-align:center;
  box-shadow:var(--shadow);max-width:320px;width:100%;animation:pop .3s ease;
}
@keyframes pop{from{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}
.win-box .big{font-size:54px}
.win-box h2{margin:8px 0 4px;font-size:24px}
.win-box p{margin:0 0 16px;color:var(--muted)}

.note{
  margin-top:18px;font-size:13px;color:var(--muted);line-height:1.7;
  background:rgba(255,255,255,.6);border-radius:16px;padding:14px 16px;
}
.note b{color:var(--ink)}
/* ===== 用户顶栏（登录后显示）===== */
.smx-nav{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;gap:10px;
  padding:12px 18px;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(10px);
  box-shadow:0 4px 18px rgba(120,110,170,.10);
}
.smx-nav .smx-home{
  font-size:14px;font-weight:800;background:#fff;
  border-radius:999px;padding:8px 14px;box-shadow:var(--shadow);
}
.smx-nav .smx-user{flex:1;text-align:right;font-size:14px;font-weight:800;color:var(--ink)}
.smx-nav .smx-logout{
  font-size:14px;font-weight:700;color:#fff;background:var(--pink-d);
  border-radius:999px;padding:8px 14px;box-shadow:var(--shadow);
}

/* ===== 登录 / 注册页 ===== */
.auth-wrap{
  min-height:100vh;
  min-height:100dvh; /* iOS Safari 地址栏高度修正 */
  display:flex;
  overflow-y:auto;
  padding:24px 16px;
  padding-top:calc(24px + env(safe-area-inset-top));
  padding-bottom:calc(24px + env(safe-area-inset-bottom));
}
.auth-card{
  /* margin:auto 代替 align-items:center，避免内容超高时顶部被裁掉（iPhone 经典 Bug） */
  margin:auto;
  width:100%;max-width:400px;background:var(--card);
  border-radius:26px;box-shadow:var(--shadow);padding:26px 24px;
}
.auth-logo{font-size:24px;font-weight:900;text-align:center}
.auth-sub{font-size:13px;color:var(--muted);text-align:center;line-height:1.6;margin:8px 0 16px}
.auth-tabs{
  display:flex;background:#F3EFFA;border-radius:999px;padding:5px;margin-bottom:18px;
}
.auth-tab{
  flex:1;border:none;background:transparent;border-radius:999px;
  padding:10px 0;font-size:15px;font-weight:800;color:var(--muted);cursor:pointer;
}
.auth-tab.active{background:#fff;color:var(--ink);box-shadow:var(--shadow)}
.auth-form{display:flex;flex-direction:column;gap:12px}
.auth-form.hidden{display:none}
.auth-input{
  border:2px solid #ECE8F7;border-radius:14px;padding:13px 16px;
  /* 16px 以上避免 iOS 聚焦输入框时页面自动放大 */
  font-size:16px;color:var(--ink);background:#FDFCFF;outline:none;
  width:100%;-webkit-appearance:none;appearance:none;
}
.auth-input:focus{border-color:var(--pink)}
.auth-remember{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.auth-remember input{width:18px;height:18px;accent-color:var(--pink-d)}
.auth-btn{
  border:none;border-radius:999px;cursor:pointer;font-size:16px;font-weight:800;color:#fff;
  padding:14px 0;background:linear-gradient(135deg,var(--pink),var(--pink-d));box-shadow:var(--shadow);
  transition:transform .12s ease;width:100%;
}
.auth-btn:active{transform:scale(.96)}
.auth-msg{font-size:13px;color:#E5484D;min-height:18px;text-align:center}
.auth-msg.ok{color:#2FB985}
.auth-foot{margin-top:16px;font-size:12px;color:var(--muted);line-height:1.6;text-align:center}

/* ===== 排行榜面板 ===== */
.lb-panel{
  margin-top:18px;background:var(--card);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:16px 18px;
}
.lb-panel h3{margin:0 0 12px;font-size:17px;font-weight:900}
.lb-loading,.lb-empty{font-size:13px;color:var(--muted);margin:6px 0}
.lb-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.lb-item{
  display:flex;align-items:center;gap:10px;
  background:#FAF8FF;border-radius:14px;padding:10px 12px;
  font-size:14px;
}
.lb-rank{width:30px;text-align:center;font-weight:900;color:var(--muted);flex-shrink:0}
.lb-name{font-weight:800;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lb-score{font-weight:900;color:var(--pink-d);flex-shrink:0}
.lb-detail{font-size:12px;color:var(--muted);flex-shrink:0}
.lb-date{font-size:11px;color:var(--muted);flex-shrink:0}
/* 排行榜行（难度优先排序后的列表） */
.lb-row{
  display:flex;align-items:center;gap:10px;
  background:#FAF8FF;border-radius:14px;padding:10px 12px;font-size:14px;
}
.lb-row.lb-first{background:linear-gradient(135deg,#FFF3E0,#FFE3F0);box-shadow:0 2px 8px rgba(229,72,77,.08)}
.lb-row .lb-lvl{
  font-size:11px;font-weight:800;color:var(--purple-d);
  background:#F1ECFB;border-radius:8px;padding:2px 8px;flex-shrink:0;
}

@media (max-width:420px){.hub-grid{gap:12px}.hub-card .nm{font-size:16px}}
/* 小屏手机（iPhone SE / 折叠屏等）：收紧登录卡内边距，避免内容溢出 */
@media (max-width:360px){
  .auth-card{padding:20px 16px}
  .auth-logo{font-size:21px}
  .auth-tab{padding:9px 0;font-size:14px}
  .auth-sub{font-size:12px}
}