/* 账号 / 会员 / 名师 / 站长后台 —— 只用 styles.css 里的变量，换调色板自动跟随 */

/* ── 角色可见性：多用户模式下普通用户看不到模型设置；学生自带接口（body.llm-byok）时 AI 面板的齿轮保留，开的是「我的模型接口」 ── */
body.role-user #btn-settings, body.role-user:not(.llm-byok) #btn-ai-settings, body.role-user #ai-model { display: none !important; }
body.llm-byok #btn-ai-settings { display: inline-flex; }   /* styles.css 默认只在窄屏显示它；自带接口的学生没有顶栏「设置」，这里常驻 */

/* ── 我的模型接口（学生自带 key） ── */
.llm-presets { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.llm-presets:empty { display: none; }
.llm-preset { cursor: pointer; }
.llm-preset.on { border-color: var(--accent); color: var(--accent-h); background: var(--accent-soft); font-weight: 600; }
#llm-base-help a { color: var(--accent-h); text-decoration: none; margin-left: 4px; }
#llm-base-help a:hover { text-decoration: underline; }
#llm-base-help a .ico { width: 12px; height: 12px; vertical-align: -2px; margin-left: 2px; }
#llm-remove { margin-top: 0; }
.msg-who .who-own { display: inline-flex; align-items: center; gap: 3px; color: var(--ink-3); }
.msg-who .who-own .ico { width: 12px; height: 12px; }

/* ── 顶栏用户入口 ── */
.user-entry { position: relative; display: flex; align-items: center; }
.user-login .ico { width: 16px; height: 16px; }
.user-chip {
  display: inline-flex; align-items: center; gap: 8px; height: 36px; padding: 0 10px 0 4px; border: 0; border-radius: var(--pill);
  background: transparent; color: var(--ink-2); font-size: 13.5px; white-space: nowrap; cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.user-chip:hover, .user-chip[aria-expanded="true"] { background: var(--accent-soft); color: var(--ink-1); }
.user-chip .caret { width: 14px; height: 14px; color: var(--ink-4); margin-left: -3px; }
.user-avatar {
  width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: var(--on-accent); display: grid; place-items: center;
  font-size: 13px; font-weight: 600; flex: none; line-height: 1;
}
.user-avatar.vip { box-shadow: 0 0 0 2px var(--bg), 0 0 0 3.5px var(--fav); }
.user-avatar .ico { width: 15px; height: 15px; }
.user-name { font-weight: 600; max-width: 110px; overflow: hidden; text-overflow: ellipsis; }
.user-badge {
  display: inline-flex; align-items: center; gap: 4px; height: 22px; padding: 0 8px; border-radius: var(--pill); font-size: 12px; font-weight: 600;
  background: var(--panel-2); color: var(--ink-3); font-variant-numeric: tabular-nums;
}
.user-badge .ico { width: 12px; height: 12px; }
.user-badge.vip { background: var(--fav-soft); color: var(--fav-text); }
.user-badge.admin { background: var(--accent-soft); color: var(--ink-1); }
.user-badge.credits { background: var(--panel-2); color: var(--ink-2); }

.user-menu {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 230px; background: var(--bg); border-radius: var(--r); box-shadow: var(--shadow-lg), 0 2px 10px rgba(0, 0, 0, .08);
  border: 1px solid var(--border); padding: 6px; z-index: var(--z-topbar); animation: dlg-in var(--dur) var(--ease);
}
.user-menu-head { padding: 8px 10px 10px; border-bottom: 1px solid var(--border); margin-bottom: 6px; }
.user-menu-name { font-weight: 600; color: var(--ink-1); font-size: 14px; }
.user-menu-sub { font-size: 12px; color: var(--ink-3); margin-top: 3px; line-height: 1.5; }
.user-menu-item {
  display: flex; align-items: center; gap: 10px; width: 100%; height: 36px; padding: 0 10px; border: 0; background: transparent; border-radius: var(--r-sm);
  color: var(--ink-2); font-size: 13.5px; text-align: left; cursor: pointer; transition: background var(--dur-fast) var(--ease);
}
.user-menu-item .ico { width: 16px; height: 16px; color: var(--ink-3); }
.user-menu-item:hover, .user-menu-item:focus-visible { background: var(--accent-soft); color: var(--ink-1); outline: 0; }
.user-menu-item.danger { color: var(--bad); }
.user-menu-item.danger .ico { color: var(--bad); }
.user-menu-item.danger:hover { background: var(--bad-soft); }

/* 顶栏变窄：先收用户名，再收徽标；「登录 / 注册」是访客唯一的入口，文字始终保留 */
@container (max-width: 940px) {
  .user-name { display: none; }
  .user-chip { padding-right: 6px; }
  #user-entry .user-login .tb-label { display: inline; }
}
@container (max-width: 760px) { .user-badge { display: none; } }

/* ── 对话框补充 ── */
.dlg.dlg-sm { width: 420px; }
.dlg.dlg-wide { width: 720px; }
.dlg .dlg-body > label { display: block; font-size: 13px; color: var(--ink-3); margin: 14px 0 0; }
.dlg .dlg-body > label .input { margin-top: 6px; width: 100%; }
.form-error { color: var(--bad); font-size: 13px; min-height: 18px; margin-top: 10px; line-height: 1.5; }
.form-error:empty { display: none; }
.form-status { font-size: 12.5px; color: var(--ink-2); margin-top: 8px; min-height: 16px; }
.dlg .set-note.block.warn { background: var(--bad-soft); color: var(--ink-1); }
.dlg .set-note.block.warn .ico { color: var(--bad); }
.dlg .dlg-body > .set-note.block { margin-top: 14px; }
.auth-tabs { display: flex; gap: 4px; background: var(--panel-2); border-radius: var(--r-sm); padding: 4px; margin-top: 14px; }
.auth-tab { flex: 1; height: 34px; border: 0; border-radius: 8px; background: transparent; color: var(--ink-3); font-size: 14px; cursor: pointer; transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease); }
.auth-tab.on { background: var(--bg); color: var(--ink-1); font-weight: 600; box-shadow: var(--shadow); }
.input.mono { font-family: var(--mono); letter-spacing: .04em; }
.set-site-actions { margin: 4px 0 8px; gap: 8px; }
.set-site-actions .btn { margin-top: 0; }
.warn-text { color: var(--bad); }

/* 钱包 */
.wallet-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 16px 0 4px; }
.wallet-cell { background: var(--panel-2); border-radius: var(--r-sm); padding: 12px 14px; min-width: 0; }
.wallet-label { font-size: 12px; color: var(--ink-3); }
.wallet-value { font-size: 15px; font-weight: 600; color: var(--ink-1); margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wallet-value.num { font-size: 22px; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.wallet-value small { font-size: 12px; color: var(--ink-3); font-weight: 400; margin-left: 4px; }
.wallet-vip { font-size: 13.5px; color: var(--ink-3); font-weight: 500; }
.wallet-vip.on { color: var(--fav-text); }
.redeem-row .input { flex: 1; }
.redeem-row .btn { margin-top: 0; flex: none; }
.plan-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.plan-card { position: relative; border: 1px solid var(--border-2); border-radius: var(--r); padding: 14px 14px 12px; display: flex; flex-direction: column; gap: 4px; background: var(--bg); min-width: 0; }
.plan-card.tagged { border-color: var(--accent); }
.plan-tag { position: absolute; top: -9px; right: 12px; background: var(--accent); color: var(--on-accent); font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: var(--pill); }
.plan-name { font-weight: 600; color: var(--ink-1); font-size: 14px; }
.plan-what { font-size: 12.5px; color: var(--ink-3); }
.plan-price { color: var(--ink-1); font-size: 13px; margin-top: 4px; }
.plan-price b { font-size: 22px; font-weight: 700; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.plan-desc { font-size: 12px; color: var(--ink-3); line-height: 1.5; flex: 1; min-height: 18px; }
.plan-card .btn { margin-top: 8px; justify-content: center; }
.plan-nourl { margin-top: 8px; font-size: 12.5px; color: var(--ink-3); text-align: center; padding: 6px 0; border: 1px dashed var(--border-2); border-radius: var(--r-sm); }
.wallet-ledger td.ts { white-space: nowrap; color: var(--ink-3); font-size: 12.5px; }
.wallet-ledger b.plus { color: var(--ok); font-weight: 600; }
.wallet-ledger b.minus { color: var(--bad); font-weight: 600; }
.mono { font-family: var(--mono); font-size: 12px; }
#wallet-more { margin-top: 8px; }

/* ── AI 面板：名师条 ── */
.ai-teacher { position: relative; border-bottom: 1px solid var(--border); background: var(--bg); flex: none; }
.teacher-cur {
  display: flex; align-items: center; gap: 10px; width: 100%; padding: 9px 14px 9px 18px; border: 0; background: transparent; text-align: left; cursor: pointer;
  color: var(--ink-2); transition: background var(--dur-fast) var(--ease);
}
.teacher-cur:hover:not(:disabled), .teacher-cur[aria-expanded="true"] { background: var(--panel-2); }
.teacher-cur:disabled { cursor: default; }
.teacher-cur .caret { width: 15px; height: 15px; color: var(--ink-4); flex: none; }
.tavatar { width: 30px; height: 30px; border-radius: 50%; flex: none; display: grid; place-items: center; background: var(--panel-2); font-size: 17px; line-height: 1; overflow: hidden; }
.tavatar.img { object-fit: cover; }
.tavatar.ico-wrap { background: var(--accent); color: var(--on-accent); }
.tavatar.ico-wrap .ico { width: 15px; height: 15px; }
.msg .avatar .tavatar { width: 27px; height: 27px; font-size: 15px; background: transparent; }
.msg .avatar .tavatar.ico-wrap { background: transparent; color: var(--ink-2); }
.msg .avatar .tavatar.ico-wrap .ico { width: 14px; height: 14px; }
.msg .avatar:has(.tavatar.img), .msg .avatar:has(.tavatar.emoji) { background: var(--panel-2); }
.teacher-text { min-width: 0; flex: 1; display: flex; flex-direction: column; gap: 1px; }
.teacher-name { font-size: 13.5px; font-weight: 600; color: var(--ink-1); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.teacher-title { font-weight: 400; color: var(--ink-3); font-size: 12px; margin-left: 7px; }
.teacher-tag { font-size: 12px; color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.teacher-tag:empty { display: none; }
.tprice { flex: none; font-size: 11.5px; font-weight: 600; padding: 2px 8px; border-radius: var(--pill); background: var(--panel-2); color: var(--ink-3); white-space: nowrap; }
.tprice.vip { background: var(--fav-soft); color: var(--fav-text); }
.tprice.cost { background: var(--accent-soft); color: var(--ink-1); }
.teacher-pop {
  position: absolute; left: 10px; right: 10px; top: calc(100% + 4px); z-index: var(--z-topbar); background: var(--bg); border: 1px solid var(--border); border-radius: var(--r);
  box-shadow: var(--shadow-lg), 0 2px 10px rgba(0, 0, 0, .08); padding: 6px; max-height: 60vh; overflow-y: auto; animation: dlg-in var(--dur) var(--ease);
}
.teacher-opt { display: flex; align-items: center; gap: 10px; width: 100%; padding: 8px 10px; border: 0; border-radius: var(--r-sm); background: transparent; text-align: left; cursor: pointer; color: var(--ink-2); }
.teacher-opt:hover, .teacher-opt:focus-visible { background: var(--accent-soft); outline: 0; }
.teacher-opt.on { background: var(--panel-2); }
.teacher-opt.on .teacher-name::after { content: "✓"; margin-left: 6px; color: var(--ok); font-weight: 700; }
.teacher-foot { font-size: 11.5px; color: var(--ink-3); padding: 8px 10px 4px; border-top: 1px solid var(--border); margin-top: 4px; }
.msg-who { font-size: 11.5px; color: var(--ink-3); margin: 0 0 4px 2px; }
.msg-who b { color: var(--ink-1); font-weight: 600; }
.ai-empty .btn { display: inline-flex; }

/* ── 站长后台 ── */
.admin { max-width: 1040px; margin: 0 auto; }
.admin-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.admin-head h1 { margin: 0; font-size: 22px; font-weight: 700; color: var(--ink-1); letter-spacing: -.02em; display: flex; align-items: center; gap: 10px; }
.admin-head h1 .ico { width: 22px; height: 22px; color: var(--ink-3); }
.admin-tabs { display: flex; gap: 4px; background: var(--panel-2); border-radius: var(--pill); padding: 4px; flex-wrap: wrap; }
.admin-tab { height: 32px; padding: 0 14px; border: 0; border-radius: var(--pill); background: transparent; color: var(--ink-3); font-size: 13.5px; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; text-decoration: none; transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease); }
.bar-row .ellip { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.admin-tab .ico { width: 15px; height: 15px; }
.admin-tab.on { background: var(--bg); color: var(--ink-1); font-weight: 600; box-shadow: var(--shadow); }
.admin-tab:hover:not(.on) { color: var(--ink-1); }
.admin-toolbar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.admin-toolbar .input { height: 34px; }
.admin-toolbar .search { width: 240px; }
.admin-toolbar .spacer { flex: 1; }
.kpis { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { background: var(--bg); border-radius: var(--r); padding: 16px 18px; box-shadow: var(--shadow); }
.kpi-num { font-size: 24px; font-weight: 700; color: var(--ink-1); letter-spacing: -.02em; font-variant-numeric: tabular-nums; line-height: 1.1; }
.kpi-label { font-size: 12.5px; color: var(--ink-3); margin-top: 5px; }
.kpi-sub { font-size: 12px; color: var(--ink-3); margin-top: 2px; }
.admin .card { overflow-x: auto; }
.admin .table { min-width: 560px; }
.admin .table td .link-btn { font-size: 12.5px; padding: 2px 7px; }
.admin .table td.ops { white-space: nowrap; text-align: right; }
.admin .table td.ops .link-btn.danger { color: var(--bad); }
.admin .table td.ops .link-btn.danger:hover { background: var(--bad-soft); }
.admin .table .status-banned { color: var(--bad); font-weight: 600; }
.admin .table .role-admin { color: var(--ink-1); font-weight: 600; }
.admin .table tr.dim td { color: var(--ink-4); }
.tag-chip { display: inline-flex; align-items: center; gap: 4px; height: 22px; padding: 0 8px; border-radius: var(--pill); font-size: 12px; background: var(--panel-2); color: var(--ink-2); white-space: nowrap; }
.tag-chip.ok { background: var(--ok-soft); color: var(--ok); }
.tag-chip.bad { background: var(--bad-soft); color: var(--bad); }
.tag-chip.vip { background: var(--fav-soft); color: var(--fav-text); }
.codes-out { width: 100%; min-height: 140px; font-family: var(--mono); font-size: 12.5px; line-height: 1.7; margin-top: 8px; }
.admin-grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.bar-list { display: grid; gap: 6px; }
.bar-row { display: grid; grid-template-columns: 92px minmax(0, 1fr) 62px; align-items: center; gap: 10px; font-size: 12.5px; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.bar-row .bar { height: 8px; border-radius: 4px; background: var(--panel-3); position: relative; overflow: hidden; }
.bar-row .bar::after { content: ""; position: absolute; inset: 0 auto 0 0; width: var(--w); background: var(--accent); border-radius: 4px; }
.bar-row .n { text-align: right; color: var(--ink-3); }
.teacher-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.tcard { background: var(--bg); border-radius: var(--r); padding: 16px 18px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 8px; }
.tcard.off { opacity: .6; }
.tcard-head { display: flex; align-items: center; gap: 10px; }
.tcard-head .tavatar { width: 38px; height: 38px; font-size: 21px; }
.tcard-name { font-weight: 600; color: var(--ink-1); font-size: 15px; }
.tcard-title { font-size: 12.5px; color: var(--ink-3); }
.tcard-line { font-size: 12.5px; color: var(--ink-3); line-height: 1.6; }
.tcard-line b { color: var(--ink-1); font-weight: 600; }
.tcard-foot { display: flex; gap: 6px; align-items: center; margin-top: auto; flex-wrap: wrap; }
.tcard-foot .spacer { flex: 1; }
.dlg .frow { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px 12px; }
.dlg .frow > label { margin-bottom: 0; }
.dlg textarea.input { min-height: 80px; resize: vertical; font-family: inherit; line-height: 1.6; }
.dlg textarea.input.tall { min-height: 200px; }
.dlg textarea.input.mono { font-family: var(--mono); font-size: 12.5px; }
.dlg .check.inline { display: inline-flex; margin-right: 8px; }
.plan-edit { border: 1px solid var(--border-2); border-radius: var(--r); padding: 14px 16px 12px; margin-bottom: 12px; background: var(--bg); }
.plan-edit.off { opacity: .7; border-style: dashed; }
.plan-edit-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px 12px; }
.plan-edit-grid label { display: flex; flex-direction: column; gap: 5px; font-size: 12px; color: var(--ink-3); min-width: 0; }
.plan-edit-grid label.span-2 { grid-column: span 2; }
.plan-edit-grid .input, .plan-edit-grid .select { height: 34px; font-size: 13.5px; width: 100%; }
.plan-edit-foot { display: flex; align-items: center; gap: 12px; margin-top: 10px; flex-wrap: wrap; }
.plan-edit-foot .check { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-2); cursor: pointer; }
.plan-edit-foot .check input { accent-color: var(--accent); width: 15px; height: 15px; }
.plan-edit-foot .spacer { flex: 1; }
.admin-empty { color: var(--ink-3); padding: 24px; text-align: center; }
@media (max-width: 767px) {
  .wallet-summary, .admin-grid-2 { grid-template-columns: 1fr; }
  .dlg.dlg-wide, .dlg.dlg-sm { width: 95vw; }
}