/* ===== AIW 管理后台 · 世界级换肤层（覆盖在原有样式之上） ===== */
/* 目标：不改任何 JS 逻辑，仅通过本 CSS 让全后台视觉升至 Stripe/Linear 级 */

:root{
  --c-bg:#f5f6f8;
  --c-surface:#ffffff;
  --c-surface-2:#f6f7f9;
  --c-border:#ececf1;
  --c-border-light:#f1f2f6;
  --c-text:#0b0d12;
  --c-text-secondary:#5b616e;
  --c-text-tertiary:#9aa0ad;
  --c-primary:#2f6bff;
  --c-primary-light:#5b8bff;
  --c-primary-dark:#2058e0;
  --c-primary-bg:#eef3ff;
  --c-success:#0ea66b;
  --c-success-bg:#e6f7f0;
  --c-warning:#e8930c;
  --c-warning-bg:#fdf4e3;
  --c-danger:#e5484d;
  --c-danger-bg:#fdecec;
  --c-sidebar-bg:#0d1117;
  --c-sidebar-hover:rgba(255,255,255,.06);
  --c-sidebar-active:#2f6bff;
  --c-sidebar-text:#c3c9d4;
  --c-sidebar-text-active:#ffffff;
  --c-sidebar-text-muted:#5b616e;
  --radius-sm:9px;
  --radius:13px;
  --radius-lg:17px;
  --radius-xl:20px;
}
body{background:var(--c-bg);font-family:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased;letter-spacing:-.005em}

/* ========== 侧边导航 ========== */
.sidebar{background:var(--c-sidebar-bg);width:240px;box-shadow:none;border-right:none}
.sidebar-header{padding:18px 18px 14px;border-bottom:1px solid rgba(255,255,255,.06)}
.sidebar-brand{gap:11px}
.sidebar-brand svg{width:30px;height:30px;border-radius:9px;box-shadow:0 4px 12px rgba(47,107,255,.4)}
.sidebar-brand svg rect{fill:var(--c-primary)}
.sidebar-brand span{font-size:16px;font-weight:800;letter-spacing:-.02em;color:#fff}
.sidebar-user{margin:14px 12px 4px;padding:10px 12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.07);border-radius:12px;gap:11px}
.sidebar-user .avatar{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,#2f6bff,#7c5cff);font-size:14px;font-weight:800;box-shadow:0 3px 10px rgba(47,107,255,.35)}
.sidebar-user .info .name{font-size:13.5px;font-weight:700;color:#fff}
.sidebar-user .info .domain{font-size:11px;color:var(--c-sidebar-text-muted)}
.sidebar-nav{padding:12px 10px}
.sidebar-nav .nav-item{display:flex;align-items:center;gap:11px;padding:9px 12px;border-radius:10px;color:var(--c-sidebar-text);font-size:13.5px;font-weight:500;margin-bottom:2px;transition:all .15s;cursor:pointer}
.sidebar-nav .nav-item svg{width:18px;height:18px;opacity:.85;flex-shrink:0}
.sidebar-nav .nav-item:hover{background:var(--c-sidebar-hover);color:#fff}
.sidebar-nav .nav-item.active{background:var(--c-sidebar-active);color:#fff;font-weight:600;box-shadow:0 4px 14px rgba(47,107,255,.4)}
.sidebar-nav .nav-item .badge{margin-left:auto;background:var(--c-danger);color:#fff;font-size:10px;font-weight:800;padding:2px 7px;border-radius:99px;min-width:20px;text-align:center}
.sidebar-nav .nav-item.active .badge{background:rgba(255,255,255,.25)}
.nav-divider{height:1px;background:rgba(255,255,255,.07);margin:10px 12px;border:none}
.sidebar-footer{padding:12px 10px;border-top:1px solid rgba(255,255,255,.06)}
.sidebar-footer .nav-item{color:var(--c-sidebar-text-muted)}
.sidebar-footer .nav-item:hover{color:#fff}

/* ========== 顶栏 ========== */
.topbar{height:60px;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--c-border);padding:0 26px;box-shadow:none}
.topbar-title{font-size:15px;font-weight:700;letter-spacing:-.01em;color:var(--c-text)}
.topbar-search{background:var(--c-surface-2);border:1px solid var(--c-border);border-radius:10px;padding:7px 14px;box-shadow:none}
.topbar-search input{font-size:13px;color:var(--c-text)}
.topbar-icon-btn{width:37px;height:37px;border-radius:10px;color:var(--c-text-secondary);transition:all .15s}
.topbar-icon-btn:hover{background:var(--c-surface-2);color:var(--c-text)}
.topbar-icon-btn .dot{border:1.5px solid #fff}

/* ========== 内容区 ========== */
.content{padding:28px;max-width:1280px}
.view{animation:viewIn .3s cubic-bezier(.2,.7,.3,1)}
@keyframes viewIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ========== 卡片（统计卡/面板） ========== */
.stat-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);padding:20px;box-shadow:none;transition:all .2s cubic-bezier(.2,.7,.3,1)}
.stat-card:hover{box-shadow:0 10px 30px rgba(15,18,30,.07);border-color:var(--c-border-light);transform:translateY(-2px)}
.stat-card .stat-label{font-size:12.5px;font-weight:600;color:var(--c-text-secondary)}
.stat-card .stat-icon{width:34px;height:34px;border-radius:10px}
.stat-card .stat-value{font-size:27px;font-weight:800;letter-spacing:-.03em;color:var(--c-text)}
.stat-card .stat-trend{font-size:12px;font-weight:700;display:inline-flex;align-items:center;padding:3px 9px;border-radius:99px}
.stat-card .stat-trend.trend-up{background:var(--c-success-bg);color:var(--c-success)}
.stat-card .stat-trend.trend-dn{background:var(--c-danger-bg);color:var(--c-danger)}
.stat-card .stat-trend.trend-flat{background:var(--c-surface-2);color:var(--c-text-tertiary)}
.dash-panel,.card,.panel{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);box-shadow:none}
.dash-panel-title{font-size:15px;font-weight:700;letter-spacing:-.01em;color:var(--c-text)}
.quick-action{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);transition:all .18s}
.quick-action:hover{box-shadow:0 8px 24px rgba(15,18,30,.07);transform:translateY(-2px);border-color:var(--c-border-light)}
.quick-action .qa-icon{border-radius:10px}

/* ========== 表格 ========== */
.data-table{font-size:13.5px}
.data-table thead th{font-size:11.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--c-text-tertiary);border-bottom:1px solid var(--c-border);padding:10px 14px}
.data-table tbody td{padding:13px 14px;border-bottom:1px solid var(--c-border-light)}
.data-table tbody tr{transition:background .12s}
.data-table tbody tr:hover{background:var(--c-surface-2)}

/* ========== 按钮 ========== */
.btn-primary,.btn-pri{background:var(--c-primary);border-radius:10px;font-weight:600;box-shadow:0 4px 14px rgba(47,107,255,.3);transition:all .15s;border:none}
.btn-primary:hover,.btn-pri:hover{background:var(--c-primary-dark);box-shadow:0 6px 20px rgba(47,107,255,.4);transform:translateY(-1px)}
.btn{border-radius:10px;font-weight:600;transition:all .15s}
.badge, .status-badge{border-radius:99px;font-weight:700;font-size:11px}

/* ========== 空状态/表单/其他 ========== */
.empty-state .es-icon{opacity:.5}
input,select,textarea{border-radius:10px;border:1px solid var(--c-border);transition:border .15s, box-shadow .15s}
input:focus,select:focus,textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(47,107,255,.12);outline:none}
.drawer{box-shadow:-16px 0 48px rgba(15,18,30,.12);border-left:1px solid var(--c-border)}
.modal-content,.modal{border-radius:var(--radius-lg);border:1px solid var(--c-border);box-shadow:0 24px 64px rgba(15,18,30,.18)}
.settings-tab.active{border-color:var(--c-primary);color:var(--c-primary)}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:#d3d6dd;border-radius:99px;border:2px solid var(--c-bg)}
::-webkit-scrollbar-thumb:hover{background:#b6bcc7}

/* ========== 主题页精修 ========== */
.theme-categories{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.theme-categories .cat-chip{padding:7px 15px;border-radius:99px;font-size:12.5px;font-weight:600;background:var(--c-surface);border:1px solid var(--c-border);color:var(--c-text-secondary);cursor:pointer;transition:all .15s}
.theme-categories .cat-chip:hover{border-color:var(--c-text-tertiary)}
.theme-categories .cat-chip.active{background:var(--c-text);color:#fff;border-color:var(--c-text)}
.theme-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.theme-card,.theme-item{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);overflow:hidden;cursor:pointer;transition:all .2s cubic-bezier(.2,.7,.3,1)}
.theme-card:hover,.theme-item:hover{box-shadow:0 12px 32px rgba(15,18,30,.1);transform:translateY(-3px);border-color:var(--c-border-light)}
.theme-preview{height:110px;display:flex;align-items:center;justify-content:center;font-size:38px;border-bottom:1px solid var(--c-border-light)}
.theme-info{padding:13px 15px}
.theme-info .name{font-size:14px;font-weight:700;letter-spacing:-.01em;display:flex;align-items:center;gap:7px}
.theme-info .desc{font-size:12px;color:var(--c-text-tertiary);margin-top:3px}
.theme-card.active,.theme-item.active{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(47,107,255,.14)}
.theme-customizer{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);padding:24px}
.theme-customizer h3{font-size:16px;font-weight:800;letter-spacing:-.02em;display:flex;align-items:center;gap:9px;margin-bottom:18px}
.color-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.color-picker-group label{font-size:12.5px;font-weight:600;color:var(--c-text-secondary);display:block;margin-bottom:6px}
.color-picker-group input[type=color]{width:100%;height:42px;border:1px solid var(--c-border);border-radius:10px;cursor:pointer;background:none;padding:2px}

/* ========== AI 助手页精修 ========== */
.view-agent{background:linear-gradient(180deg,#f5f6f8 0%,#eef1f6 100%)}
.agent-container{max-width:760px;margin:0 auto;display:flex;flex-direction:column;height:calc(100vh - 130px)}
.agent-header{display:flex;align-items:center;gap:13px;padding:16px 20px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);box-shadow:0 4px 16px rgba(15,18,30,.05)}
.agent-avatar{width:44px;height:44px;border-radius:13px;background:linear-gradient(135deg,#2f6bff,#7c5cff);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;box-shadow:0 4px 14px rgba(47,107,255,.4);position:relative}
.agent-avatar::after{content:'';position:absolute;bottom:-1px;right:-1px;width:11px;height:11px;border-radius:50%;background:#22c55e;border:2px solid #fff}
.agent-info .name{font-size:15.5px;font-weight:800;letter-spacing:-.01em}
.agent-info .status{font-size:12px;color:var(--c-success);font-weight:600;display:flex;align-items:center;gap:5px}
.agent-chat{flex:1;overflow-y:auto;padding:22px 6px}
.agent-msg{display:flex;gap:12px;margin-bottom:18px;animation:msgIn .3s cubic-bezier(.2,.7,.3,1)}
@keyframes msgIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.agent-msg.user{flex-direction:row-reverse}
.msg-avatar{width:36px;height:36px;border-radius:11px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;flex-shrink:0}
.agent-msg.bot .msg-avatar{background:linear-gradient(135deg,#2f6bff,#7c5cff);color:#fff}
.agent-msg.user .msg-avatar{background:var(--c-text);color:#fff}
.msg-bubble{max-width:520px;padding:13px 16px;border-radius:16px;font-size:14px;line-height:1.6;box-shadow:0 2px 8px rgba(15,18,30,.05)}
.agent-msg.bot .msg-bubble{background:var(--c-surface);border:1px solid var(--c-border);border-top-left-radius:5px}
.agent-msg.user .msg-bubble{background:var(--c-primary);color:#fff;border-top-right-radius:5px}
.msg-time{font-size:11px;color:var(--c-text-tertiary);margin-top:5px}
.agent-suggestions{display:flex;gap:8px;flex-wrap:wrap;padding:0 0 14px 48px}
.agent-chip{padding:8px 15px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:99px;font-size:12.5px;font-weight:600;color:var(--c-text-secondary);cursor:pointer;transition:all .15s}
.agent-chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-bg)}
.agent-capabilities{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding:0 0 16px 48px}
.agent-cap{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:14px;display:flex;flex-direction:column;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--c-text-secondary);cursor:pointer;transition:all .18s;text-align:center}
.agent-cap svg{width:22px;height:22px;color:var(--c-primary)}
.agent-cap:hover{box-shadow:0 8px 22px rgba(15,18,30,.08);transform:translateY(-2px);color:var(--c-text)}
.agent-input-area{display:flex;gap:10px;padding:14px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);box-shadow:0 8px 28px rgba(15,18,30,.08)}
.agent-input-area input{flex:1;border:none;outline:none;font-size:14px;font-family:inherit;background:none;padding:6px 4px}
.agent-send{width:44px;height:44px;border-radius:12px;background:var(--c-primary);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(47,107,255,.35);transition:all .15s}
.agent-send:hover{background:var(--c-primary-dark);transform:scale(1.05)}

/* ========== 设置页精修 ========== */
.settings-tabs{display:flex;gap:4px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:5px;margin-bottom:22px;width:fit-content}
.settings-tab{padding:9px 18px;border-radius:10px;font-size:13.5px;font-weight:600;color:var(--c-text-secondary);cursor:pointer;transition:all .15s}
.settings-tab:hover{color:var(--c-text)}
.settings-tab.active{background:var(--c-text);color:#fff;border-color:var(--c-text)}
.settings-panel{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);padding:26px;max-width:720px}
.form-section{margin-bottom:26px;padding-bottom:26px;border-bottom:1px solid var(--c-border-light)}
.form-section:last-child{margin-bottom:0;padding-bottom:0;border-bottom:none}
.form-section-title{font-size:15px;font-weight:800;letter-spacing:-.01em;display:flex;align-items:center;gap:9px;margin-bottom:6px}
.form-section-title svg{width:19px;height:19px;color:var(--c-primary)}
.form-section-desc{font-size:13px;color:var(--c-text-tertiary);margin-bottom:16px;line-height:1.5}
.form-group label{font-size:13px;font-weight:600;color:var(--c-text-secondary);display:block;margin-bottom:7px}
.form-row,.form-row-3{display:grid;gap:14px}