/* ===== 基础布局与组件 ===== */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { opacity: .85; }
h1, h2, h3 { margin: 0 0 .6em; }
.hidden { display: none !important; }
.muted { color: var(--fg-muted); }
.small { font-size: .82em; }
.inline { display: inline; }

.container { max-width: 1100px; margin: 0 auto; padding: 20px; }
.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
}

/* 顶栏 */
.topbar { background: var(--bg-2); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20; }
.topbar-inner { max-width: 1100px; margin: 0 auto; padding: 10px 20px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 1.05em; color: var(--fg); }
.nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav-link { padding: 6px 10px; border-radius: 6px; color: var(--fg); }
.nav-link:hover { background: var(--bg-3); }
.nav-admin { color: var(--danger); }
.topbar-right { display: flex; align-items: center; gap: 10px; }
.theme-select { background: var(--bg-3); color: var(--fg); border: 1px solid var(--border); border-radius: 6px; padding: 6px; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 16px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg-3); color: var(--fg); cursor: pointer; font-size: .95em;
  transition: transform .05s, opacity .15s;
}
.btn:hover { opacity: .9; }
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--accent); color: var(--accent-fg); border-color: transparent; }
.btn-danger { background: var(--danger); color: #fff; border-color: transparent; }
.btn-ghost { background: transparent; }
.btn-oauth { background: #1677ff; color: #fff; border-color: transparent; }
.btn-block { width: 100%; }
.btn-sm { padding: 5px 10px; font-size: .85em; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.btn-row.tight { gap: 4px; }

/* 表单 */
.form { display: flex; flex-direction: column; gap: 12px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: .95em; }
input[type=text], input[type=email], input[type=password], input[type=number], textarea, select {
  background: var(--bg-3); color: var(--fg); border: 1px solid var(--border);
  border-radius: 8px; padding: 9px 12px; font-size: .95em; width: 100%; font-family: inherit;
}
textarea { resize: vertical; }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); }
.form-inline { display: flex; gap: 8px; margin-bottom: 12px; }
.form-inline input { max-width: 280px; }

/* 提示 */
.flashes { max-width: 1100px; margin: 10px auto 0; padding: 0 20px; }
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 8px; border: 1px solid var(--border); }
.flash-success { background: color-mix(in srgb, var(--ok) 15%, transparent); border-color: var(--ok); }
.flash-error { background: color-mix(in srgb, var(--danger) 15%, transparent); border-color: var(--danger); }

/* 认证页 */
.auth-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.auth-wrap { width: 100%; max-width: 400px; }
.auth-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.auth-logo { text-align: center; font-weight: 700; font-size: 1.1em; margin-bottom: 16px; }
.auth-form { display: flex; flex-direction: column; gap: 12px; }
.auth-form label { display: flex; flex-direction: column; gap: 6px; font-size: .9em; }
.auth-tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.auth-tabs .tab { flex: 1; padding: 9px; background: transparent; border: none; color: var(--fg-muted); cursor: pointer; font-size: .95em; border-bottom: 2px solid transparent; }
.auth-tabs .tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
.captcha-row { display: flex; gap: 10px; align-items: flex-end; }
.captcha-row label { flex: 1; }
.captcha-img { height: 40px; border-radius: 6px; cursor: pointer; border: 1px solid var(--border); }
.code-row { display: flex; gap: 10px; align-items: flex-end; }
.code-row label { flex: 1; }
.oauth-divider { text-align: center; color: var(--fg-muted); margin: 12px 0; }
.auth-switch { text-align: center; margin-top: 14px; font-size: .9em; }
.oauth-error { text-align: center; }
.error-title { font-size: 1.05em; margin-bottom: 14px; }
.maintenance-msg { text-align: center; color: var(--fg-muted); margin: 16px 0; }

/* 首页 */
.home-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 720px) { .home-grid { grid-template-columns: 1fr; } }
.conn-status { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--fg-muted); }
.dot.on { background: var(--ok); box-shadow: 0 0 6px var(--ok); }
.qr-wrap { text-align: center; margin-top: 12px; }
.qr-wrap img, .qr-wrap canvas { max-width: 200px; }
.device-info { margin-top: 12px; font-size: .9em; }
.range-labels { display: flex; justify-content: space-between; color: var(--fg-muted); font-size: .8em; }

/* 游戏 */
.games-card { margin-top: 4px; }
.game-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.chip, .game-tab {
  padding: 6px 12px; border-radius: 20px; border: 1px solid var(--border);
  background: var(--bg-3); color: var(--fg); cursor: pointer; font-size: .88em;
}
.chip.active, .game-tab.active { background: var(--accent); color: var(--accent-fg); border-color: transparent; }
.game-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.game-card {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; cursor: pointer; text-align: center; transition: transform .08s, border-color .15s;
}
.game-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.game-icon { font-size: 2em; margin-bottom: 8px; }
.game-name { font-weight: 600; font-size: .95em; }

/* 弹窗 */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.5); display: none; align-items: center; justify-content: center; z-index: 50; padding: 20px; }
.modal.open { display: flex; }
.modal-box { background: var(--bg-2); border-radius: var(--radius); max-width: 640px; width: 100%; max-height: 85vh; overflow: auto; }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--border); font-weight: 600; }
.modal-close { background: none; border: none; color: var(--fg); font-size: 1.5em; cursor: pointer; }
.modal-body { padding: 18px; }

/* 社区 */
.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.filter-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.post-list, .wave-list { display: flex; flex-direction: column; gap: 10px; }
.post-item, .wave-item { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; color: var(--fg); display: block; }
.post-item-title { font-weight: 600; margin-bottom: 6px; }
.post-item-meta { display: flex; gap: 10px; flex-wrap: wrap; font-size: .82em; color: var(--fg-muted); }
.tag { background: var(--bg-3); padding: 1px 8px; border-radius: 4px; }
.post-content { margin: 14px 0; white-space: pre-wrap; word-break: break-word; }
.post-images { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0; }
.post-images img { max-width: 140px; max-height: 140px; border-radius: 8px; border: 1px solid var(--border); }
.post-actions { display: flex; gap: 8px; margin-top: 12px; }
.comment-list { display: flex; flex-direction: column; gap: 12px; margin-top: 14px; }
.comment { border-top: 1px solid var(--border); padding-top: 10px; }
.comment-meta { display: flex; gap: 10px; align-items: center; font-size: .85em; margin-bottom: 4px; }
.comment-body { white-space: pre-wrap; word-break: break-word; }
.link-btn { background: none; border: none; color: var(--fg-muted); cursor: pointer; font-size: .82em; }
.code-block { background: var(--bg-3); border-radius: 8px; padding: 12px; overflow: auto; font-size: .82em; white-space: pre-wrap; word-break: break-all; }
.wave-frames { margin: 12px 0; }

/* 后台 */
.admin-layout { display: flex; gap: 16px; }
.admin-side { width: 170px; flex-shrink: 0; display: flex; flex-direction: column; gap: 2px; }
.admin-side a { padding: 8px 12px; border-radius: 6px; color: var(--fg); font-size: .92em; }
.admin-side a.active, .admin-side a:hover { background: var(--bg-3); }
.admin-main { flex: 1; min-width: 0; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.stat { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; text-align: center; }
.stat strong { font-size: 1.6em; display: block; }
.stat span { color: var(--fg-muted); font-size: .88em; }
.stat-warn { border-color: var(--warn); }

.table { width: 100%; border-collapse: collapse; font-size: .88em; }
.table th, .table td { border-bottom: 1px solid var(--border); padding: 8px; text-align: left; vertical-align: top; }
.table th { color: var(--fg-muted); font-weight: 600; white-space: nowrap; }
.table .wrap { max-width: 260px; word-break: break-word; }
.badge { background: var(--bg-3); padding: 2px 8px; border-radius: 4px; font-size: .82em; }
.badge-ok { background: color-mix(in srgb, var(--ok) 20%, transparent); color: var(--ok); }
.badge-danger { background: color-mix(in srgb, var(--danger) 20%, transparent); color: var(--danger); }
.badge-warn { background: color-mix(in srgb, var(--warn) 20%, transparent); color: var(--warn); }
.badge-admin { background: color-mix(in srgb, var(--accent) 25%, transparent); color: var(--accent); }
.mini { width: auto; padding: 4px; font-size: .82em; }

/* 分页 */
.pagination { display: flex; gap: 6px; margin-top: 14px; flex-wrap: wrap; }
.page-btn { padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border); color: var(--fg); }
.page-btn.active { background: var(--accent); color: var(--accent-fg); border-color: transparent; }

/* 最近游玩 */
.recent-list { display: flex; gap: 8px; flex-wrap: wrap; }
.recent-item { background: var(--bg-3); border-radius: 8px; padding: 6px 12px; cursor: pointer; font-size: .9em; }
.recent-item em { color: var(--fg-muted); font-style: normal; margin-left: 6px; font-size: .8em; }

.empty-state { text-align: center; color: var(--fg-muted); padding: 40px 0; }
.footer { text-align: center; color: var(--fg-muted); padding: 24px; font-size: .85em; margin-top: 30px; }

/* ===== 游戏组件 ===== */
.game-status { margin: 10px 0; font-weight: 600; font-size: .95em; }
.game-tip { color: var(--fg-muted); font-size: .9em; margin: 4px 0 10px; }
.game-msg { margin: 8px 0; padding: 6px 10px; border-radius: 6px; font-size: .88em; }
.game-msg.bad { background: color-mix(in srgb, var(--danger) 18%, transparent); color: var(--danger); }
.game-msg.good { background: color-mix(in srgb, var(--ok) 18%, transparent); color: var(--ok); }
.game-msg.ok { background: var(--bg-3); }

.gomoku-board { display: grid; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; max-width: 440px; margin: 0 auto; }
.gomoku-cell { aspect-ratio: 1; background: var(--bg-2); cursor: pointer; display: flex; align-items: center; justify-content: center; }
.gomoku-cell.black::after, .gomoku-cell.white::after { content: ''; width: 70%; height: 70%; border-radius: 50%; }
.gomoku-cell.black::after { background: #111; }
.gomoku-cell.white::after { background: #f5f5f5; border: 1px solid #ccc; }

.ttt-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; max-width: 300px; margin: 0 auto; }
.ttt-cell { aspect-ratio: 1; display: flex; align-items: center; justify-content: center; font-size: 2em; font-weight: 700; background: var(--bg-3); border: 1px solid var(--border); border-radius: 10px; cursor: pointer; user-select: none; }
.ttt-cell.flip { font-size: 1.6em; }
.ttt-cell.good { background: color-mix(in srgb, var(--ok) 25%, transparent); }
.ttt-cell.bad { background: color-mix(in srgb, var(--danger) 25%, transparent); }
.ttt-cell.ok { background: var(--bg-3); }

.dice-area { display: flex; gap: 30px; justify-content: center; margin: 14px 0; }
.dice { width: 70px; height: 70px; display: flex; align-items: center; justify-content: center; font-size: 2.4em; border-radius: 12px; border: 2px solid var(--border); background: var(--bg-3); }
.dice.ai { border-color: var(--danger); }

.wheel-wrap { position: relative; width: 260px; height: 260px; margin: 14px auto; }
.wheel-pointer { position: absolute; top: -6px; left: 50%; transform: translateX(-50%); font-size: 1.7em; color: var(--danger); z-index: 2; pointer-events: none; text-shadow: 0 1px 2px rgba(0,0,0,.3); }
.wheel-canvas { display: block; }

.snake-track { display: grid; grid-template-columns: repeat(8, 1fr); gap: 4px; margin: 10px 0; }
.snake-cell { aspect-ratio: 1; display: flex; align-items: center; justify-content: center; font-size: .75em; border-radius: 4px; background: var(--bg-3); border: 1px solid var(--border); }
.snake-cell.snake { border-color: var(--danger); color: var(--danger); }
.snake-cell.boost { border-color: var(--ok); }
.snake-cell.you { background: var(--accent); color: var(--accent-fg); }
.snake-cell.ai { background: color-mix(in srgb, var(--danger) 50%, transparent); color: #fff; }

.whack-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; max-width: 300px; margin: 10px auto; }
.whack-hole { aspect-ratio: 1; background: var(--bg-3); border: 1px solid var(--border); border-radius: 50%; cursor: pointer; }
.whack-hole.mole { background: color-mix(in srgb, var(--accent) 70%, transparent); }

.react-zone { height: 180px; display: flex; align-items: center; justify-content: center; border-radius: 12px; border: 2px solid var(--border); background: var(--bg-3); font-size: 1.3em; cursor: pointer; user-select: none; margin: 10px 0; transition: background .1s; }
.react-zone.go { background: color-mix(in srgb, var(--accent) 60%, transparent); color: var(--accent-fg); }

.hold-btn { width: 100%; padding: 30px; font-size: 1.2em; user-select: none; }
.tap-btn { width: 100%; padding: 34px; font-size: 1.4em; user-select: none; }

.memory-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; max-width: 320px; margin: 10px auto; }
.mem-cell { aspect-ratio: 1; display: flex; align-items: center; justify-content: center; font-size: 1.6em; background: var(--bg-3); border: 1px solid var(--border); border-radius: 8px; cursor: pointer; }

.catch-zone { position: relative; height: 280px; border: 2px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--bg-3); }
.catch-basket { position: absolute; bottom: 8px; width: 70px; height: 24px; background: var(--accent); border-radius: 6px; left: 45%; }
.coin { position: absolute; top: -20px; width: 16px; height: 16px; border-radius: 50%; background: var(--warn); }

.bj-cards { display: flex; gap: 6px; min-height: 40px; margin: 6px 0; }
.bj-card { width: 30px; height: 42px; display: inline-flex; align-items: center; justify-content: center; background: var(--bg-2); border: 1px solid var(--border); border-radius: 5px; font-weight: 700; }

.prompt { background: var(--bg-3); border-radius: 10px; padding: 16px; margin: 10px 0; font-size: 1.05em; }
.guess-input { width: 120px !important; }
.bottle-zone { display: flex; justify-content: center; padding: 20px 0; }
.bottle { font-size: 4em; transition: transform .8s cubic-bezier(.2,.8,.2,1); display: inline-block; }

/* 头像 */
.avatar { width: 30px; height: 30px; border-radius: 50%; object-fit: cover; border: 1px solid var(--border); display: inline-block; vertical-align: middle; flex-shrink: 0; }
.avatar-lg { width: 80px; height: 80px; border-radius: 50%; object-fit: cover; border: 2px solid var(--border); display: inline-block; flex-shrink: 0; }
.avatar-default { display: inline-flex; align-items: center; justify-content: center; background: var(--accent); color: var(--accent-fg); font-weight: 700; }
.nav-user { display: inline-flex; align-items: center; gap: 6px; }
.avatar-row { display: flex; align-items: center; gap: 16px; margin-bottom: 12px; }
.avatar-upload { flex: 1; }

/* 支付宝唤起页 */
.alipay-launch { text-align: center; }
.launch-tip { font-size: 1.05em; color: var(--fg-muted); margin-bottom: 16px; }