:root{--bg:#0b1020;--card:#141b2d;--border:#243049;--text:#e8edf7;--muted:#8b9bb4;--primary:#6366f1;--primary-hover:#818cf8;--success:#22c55e;--danger:#ef4444;--sidebar-w:220px}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* ========== 侧边栏布局系统 ========== */
.app-layout{display:flex;min-height:100vh}
.sidebar{
  width:var(--sidebar-w);min-width:var(--sidebar-w);
  background:#0a0f1a;border-right:1px solid var(--border);
  display:flex;flex-direction:column;
  position:fixed;top:0;left:0;bottom:0;z-index:100;
  overflow-y:auto;
}
.sidebar-brand{
  padding:20px 20px 16px;
  font-weight:700;font-size:1.05rem;color:var(--text);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:10px;
  text-decoration:none;
}
.sidebar-brand svg{flex-shrink:0;color:var(--primary)}
.sidebar-nav{flex:1;padding:12px 10px;display:flex;flex-direction:column;gap:3px}
.sidebar-item{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:8px;
  color:var(--muted);text-decoration:none;font-size:.88rem;
  cursor:pointer;transition:all .15s;border:none;background:none;
  width:100%;text-align:left;font-family:inherit;
}
.sidebar-item:hover{background:rgba(99,102,241,.1);color:var(--text)}
.sidebar-item.active{background:rgba(99,102,241,.18);color:var(--primary);font-weight:600}
.sidebar-item svg{flex-shrink:0;width:20px;height:20px}
.sidebar-footer{padding:12px 16px;border-top:1px solid var(--border)}
.sidebar-footer .btn{width:100%;justify-content:center}
.sidebar-badge{font-size:.68rem;padding:2px 8px;border-radius:999px;margin-left:auto;font-weight:400}
.sidebar-badge.danger{background:rgba(239,68,68,.15);color:var(--danger)}

.main-content{
  margin-left:var(--sidebar-w);flex:1;min-width:0;
  padding:24px 28px 40px;
}
.tab-pane{display:none}
.tab-pane.active{display:block}
.page-title{font-size:1.4rem;font-weight:700;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.page-title svg{color:var(--primary)}

/* 移动端侧边栏切换 */
.sidebar-toggle{
  display:none;position:fixed;top:12px;left:12px;z-index:110;
  background:var(--card);border:1px solid var(--border);border-radius:8px;
  padding:8px 10px;color:var(--text);cursor:pointer;
}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:99}
@media(max-width:768px){
  .sidebar{transform:translateX(-100%);transition:transform .25s}
  .sidebar.open{transform:translateX(0)}
  .sidebar-toggle{display:flex;align-items:center;gap:6px;font-size:.85rem}
  .sidebar-overlay.open{display:block}
  .main-content{margin-left:0;padding:60px 16px 40px}
  .connect-fields{grid-template-columns:1fr}
  .admin-grid{grid-template-columns:1fr}
}

/* ========== 旧导航栏 (首页保留) ========== */
.navbar{background:rgba(11,16,32,.9);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;backdrop-filter:blur(8px)}
.nav-inner{display:flex;justify-content:space-between;align-items:center;height:64px}
.logo{font-weight:700;color:var(--text);text-decoration:none;font-size:1.1rem}
.nav-links{display:flex;gap:12px;align-items:center}
.nav-links a{color:var(--muted);text-decoration:none}

/* ========== 按钮 ========== */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border-radius:8px;border:1px solid transparent;cursor:pointer;font-size:.9rem;text-decoration:none;font-family:inherit}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover)}
.btn-outline{border-color:var(--border);color:var(--text);background:transparent}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-lg{padding:12px 24px;font-size:1rem}
.btn-sm{padding:6px 12px;font-size:.8rem}
.btn-xs{padding:3px 8px;font-size:.72rem;border-radius:6px}
.select-model-btn{transition:all .15s}
.select-model-btn.selected{background:rgba(34,197,94,.15);border-color:var(--success);color:var(--success)}
.btn-block{width:100%;margin-top:8px}
.btn-danger{border-color:rgba(239,68,68,.4);color:var(--danger);background:transparent}
.btn-danger:hover{background:rgba(239,68,68,.12);border-color:var(--danger)}

/* ========== 首页 ========== */
.hero{padding:80px 0 60px;text-align:center;background:radial-gradient(circle at 50% 0%,#1e1b4b 0%,transparent 50%)}
.badge{display:inline-block;padding:4px 12px;border-radius:999px;background:rgba(99,102,241,.2);color:var(--primary-hover);font-size:.85rem;margin-bottom:16px}
.hero h1{font-size:2.5rem;margin-bottom:16px}
.subtitle{color:var(--muted);max-width:600px;margin:0 auto 32px;font-size:1.1rem}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.section{padding:60px 0}
.section-dark{background:var(--card)}
.section h2{text-align:center;margin-bottom:8px}
.section-desc{text-align:center;color:var(--muted);margin-bottom:32px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px}
.feature .icon{font-size:2rem;margin-bottom:12px}
.code-block{background:#0a0e1a;border:1px solid var(--border);border-radius:8px;padding:16px;overflow-x:auto;margin-bottom:16px;font-size:.85rem}
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.price-card h4{margin-bottom:8px}
.price{color:var(--primary-hover);font-size:.9rem}
.footer{padding:32px 0;text-align:center;color:var(--muted);border-top:1px solid var(--border)}
.beian-link{color:var(--muted);text-decoration:none;font-size:.82rem;transition:color .2s}
.beian-link:hover{color:var(--text)}
.footer-br{display:none}
@media(max-width:480px){.footer-br{display:block;margin-bottom:4px}}
.page{padding:32px 0 60px}

/* ========== 认证 ========== */
.auth-card{max-width:420px;margin:40px auto}
.auth-card h2{text-align:center;margin-bottom:20px}
.auth-card label{display:block;margin-top:12px;margin-bottom:4px;color:var(--muted);font-size:.85rem}
.auth-card input{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:#0a0e1a;color:var(--text)}
.tabs{display:flex;gap:8px;margin-bottom:16px}
.tab{flex:1;padding:8px;border:1px solid var(--border);background:transparent;color:var(--muted);border-radius:8px;cursor:pointer}
.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.msg{margin-top:12px;font-size:.85rem;color:var(--danger)}

/* ========== 通用组件 ========== */
.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}
.stat-label{display:block;color:var(--muted);font-size:.8rem}
.stat-value{display:block;font-size:1.4rem;font-weight:700;margin-top:4px}
.section-card{margin-bottom:24px}
.section-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:16px;gap:16px}
.section-desc{color:var(--muted);font-size:.85rem;margin-top:4px}
.guide-card{background:linear-gradient(135deg,rgba(99,102,241,.08),rgba(20,27,45,1));border-color:rgba(99,102,241,.3)}
.guide-steps{margin:12px 0 0 20px;color:var(--text)}
.guide-steps li{margin-bottom:8px}
.guide-note{color:var(--primary-hover);font-size:.9rem;margin-top:12px;padding:10px 12px;background:rgba(99,102,241,.1);border-radius:8px}
.stat-hint{display:block;font-size:.75rem;color:var(--muted);margin-top:4px}
.stat-email{font-size:1rem;word-break:break-all}
.stat-warning{border-color:var(--danger)}
.stat-warning .stat-value{color:var(--danger)}
.key-item{display:flex;justify-content:space-between;align-items:center;padding:12px;background:#0a0e1a;border-radius:8px;margin-bottom:8px;gap:12px}
.key-name{display:block;color:var(--muted);font-size:.75rem;margin-bottom:4px}
.key-value{font-family:monospace;font-size:.85rem;word-break:break-all}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.85rem}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border)}
th{color:var(--muted);font-weight:500}
.channel-item,.pricing-item{padding:12px;border:1px solid var(--border);border-radius:8px;margin-bottom:8px;font-size:.85rem}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;z-index:200}
.modal-content{width:90%;max-width:480px}
.modal-content label{display:block;margin-top:10px;margin-bottom:4px;color:var(--muted);font-size:.85rem}
.modal-content input,.modal-content textarea,.modal-content select{width:100%;padding:8px 10px;border-radius:8px;border:1px solid var(--border);background:#0a0e1a;color:var(--text)}
.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:16px}
.muted-text{color:var(--muted);font-size:.85rem}
.recharge-card{border-color:rgba(99,102,241,.3);background:linear-gradient(135deg,rgba(99,102,241,.06),var(--card))}
.redeem-row{display:flex;gap:12px;align-items:center}
.admin-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:24px;margin-bottom:24px}

/* 接入配置卡片 */
.connect-info-card{border-color:rgba(34,197,94,.3);background:linear-gradient(135deg,rgba(34,197,94,.06),var(--card))}
.connect-fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.connect-field{background:rgba(255,255,255,.03);border:1px solid var(--border);border-radius:10px;padding:14px 16px}
.field-label{font-weight:600;font-size:.85rem;color:var(--muted);letter-spacing:.05em;text-transform:uppercase;display:block;margin-bottom:8px}
.field-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.field-value{background:rgba(0,0,0,.3);border:1px solid var(--border);border-radius:6px;padding:7px 12px;font-family:monospace;font-size:.82rem;color:var(--primary-hover);word-break:break-all;flex:1}
.field-hint{font-size:.78rem;color:var(--muted);margin-top:6px}

/* 扫码充值 - 固定金额按钮 */
.amount-btn{padding:12px 8px;border-radius:10px;border:1px solid var(--border);background:rgba(255,255,255,.03);color:var(--text);cursor:pointer;font-size:.95rem;font-weight:600;transition:all .2s}
.amount-btn:hover{border-color:var(--primary);background:rgba(99,102,241,.1)}
.amount-btn.selected{border-color:var(--primary);background:var(--primary);color:#fff;box-shadow:0 0 12px rgba(99,102,241,.3)}
.amount-btn:disabled{opacity:.4;cursor:not-allowed}

/* 工具接入教程 */
.tool-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px}
.tool-tab{padding:7px 14px;border-radius:8px;border:1px solid var(--border);background:transparent;color:var(--muted);cursor:pointer;font-size:.85rem;transition:all .2s}
.tool-tab:hover{border-color:var(--primary);color:var(--primary)}
.tool-tab.active{background:var(--primary);border-color:var(--primary);color:#fff}
.guide-steps-visual{display:flex;flex-direction:column;gap:12px}
.step-item{display:flex;gap:14px;align-items:flex-start;padding:14px;background:rgba(255,255,255,.03);border:1px solid var(--border);border-radius:10px}
.step-num{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem}
.step-body{flex:1}
.step-body strong{display:block;margin-bottom:4px;color:var(--text)}
.step-body p{font-size:.88rem;color:var(--muted);margin:0}
.step-body code{background:rgba(99,102,241,.15);color:var(--primary-hover);padding:1px 6px;border-radius:4px;font-size:.85em}
.step-body kbd{background:#1e2a42;border:1px solid var(--border);padding:1px 6px;border-radius:4px;font-size:.8em}

/* 扫码支付弹窗 */
.payment-modal{position:fixed;inset:0;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;z-index:1000}
.payment-content{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px;width:90%;max-width:380px}
.qr-placeholder{background:rgba(255,255,255,.04);border:2px dashed var(--border);border-radius:12px;padding:32px 24px;text-align:center;min-height:200px;display:flex;align-items:center;justify-content:center}
.qr-inner{text-align:center}
.quick-amounts{display:flex;gap:8px;flex-wrap:wrap}
.recharge-panel{margin-bottom:0}

/* 协议勾选框 */
.checkbox-label{display:flex;align-items:flex-start;gap:6px;margin-top:12px;cursor:pointer}
.checkbox-label input[type="checkbox"]{width:auto;margin-top:3px;accent-color:var(--primary);flex-shrink:0}
.checkbox-label span{font-size:.82rem;color:var(--muted);line-height:1.5}
.checkbox-label a{color:var(--primary);text-decoration:underline;font-size:.82rem}
.checkbox-label a:hover{color:var(--primary-hover)}

/* ========== 消息通知铃铛 ========== */
.notify-bell-wrap{position:relative;display:inline-block}
.notify-bell{
  display:flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--border);background:transparent;
  color:var(--muted);cursor:pointer;transition:all .2s;
  position:relative;
}
.notify-bell:hover{background:rgba(99,102,241,.1);color:var(--text)}
.notify-bell svg{width:18px;height:18px}
.notify-badge{
  position:absolute;top:-4px;right:-4px;
  min-width:18px;height:18px;padding:0 4px;
  border-radius:999px;background:var(--danger);
  color:#fff;font-size:.65rem;font-weight:700;
  display:none;align-items:center;justify-content:center;
  line-height:1;
}
.notify-badge.show{display:flex}

/* ========== 浮动铃铛（右上角可拖拽） ========== */
.floating-bell{
  display:none;
  position:fixed;top:24px;right:24px;
  z-index:600;
  cursor:grab;
  user-select:none;
  transition:transform .15s;
}
.floating-bell:active{cursor:grabbing}
.floating-bell .notify-bell{
  width:44px;height:44px;
  background:var(--card);
  border:1.5px solid var(--border);
  border-radius:50%;
  box-shadow:0 4px 16px rgba(0,0,0,.35);
  transition:all .2s;
}
.floating-bell .notify-bell:hover{
  background:var(--card);
  border-color:var(--primary);
  color:var(--primary);
  box-shadow:0 4px 20px rgba(99,102,241,.35);
  transform:scale(1.05);
}
.floating-bell .notify-bell svg{width:20px;height:20px}
.floating-bell .notify-badge{
  top:-6px;right:-6px;
  min-width:20px;height:20px;
  font-size:.7rem;
}

/* ========== 浮动消息面板（可拖拽） ========== */
.notify-float{
  display:none;
  position:fixed;top:80px;right:24px;
  width:340px;max-height:420px;
  background:var(--card);border:1px solid var(--border);
  border-radius:14px;box-shadow:0 12px 40px rgba(0,0,0,.45);
  z-index:500;
  flex-direction:column;
  overflow:hidden;
  transition:opacity .2s,transform .2s;
  opacity:0;transform:translateY(-8px) scale(.97);
}
.notify-float.open{
  display:flex;
  opacity:1;transform:translateY(0) scale(1);
}
.notify-float-header{
  display:flex;justify-content:space-between;align-items:center;
  padding:12px 16px;
  border-bottom:1px solid var(--border);
  background:var(--card);
  cursor:grab;
  user-select:none;
  border-radius:14px 14px 0 0;
  flex-shrink:0;
}
.notify-float-header:active{cursor:grabbing}
.notify-float-title{
  font-weight:600;font-size:.9rem;
  display:flex;align-items:center;gap:6px;
}
.notify-float-title::before{
  content:'⠿';font-size:1rem;color:var(--muted);letter-spacing:2px;
}
.notify-float-close{
  display:flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:6px;
  border:none;background:transparent;
  color:var(--muted);cursor:pointer;
  transition:all .15s;
}
.notify-float-close:hover{background:rgba(239,68,68,.12);color:#ef4444}
.notify-float-body{
  overflow-y:auto;max-height:340px;
  scrollbar-width:thin;
}
.notify-empty{padding:40px 16px;text-align:center;color:var(--muted);font-size:.85rem}
.notify-item{
  padding:10px 16px;border-bottom:1px solid var(--border);
  cursor:pointer;transition:background .15s;
  font-size:.82rem;display:flex;flex-direction:column;gap:2px;
}
.notify-item:hover{background:rgba(99,102,241,.06)}
.notify-item.unread{background:rgba(99,102,241,.08);border-left:3px solid var(--primary)}
.notify-item .n-title{font-weight:500;color:var(--text)}
.notify-item .n-msg{color:var(--muted);font-size:.78rem}
.notify-item .n-time{color:var(--muted);font-size:.7rem;margin-top:2px}

/* sidebar-footer 中退出按钮布局 */
.sidebar-footer-content{
  display:flex;align-items:center;
}
.sidebar-footer-content .btn{flex:1}

/* ========== 浮空客服按钮 ========== */
.cs-float{
  position:fixed;bottom:40px;right:28px;z-index:500;
  display:flex;align-items:center;gap:8px;
  padding:12px 18px;border-radius:24px;
  border:none;background:var(--primary);color:#fff;
  cursor:pointer;font-family:inherit;font-size:.9rem;font-weight:500;
  box-shadow:0 4px 20px rgba(99,102,241,.4);
  transition:transform .2s,box-shadow .2s;
}
.cs-float:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(99,102,241,.5)}
.cs-float svg{flex-shrink:0}
.cs-float-label{white-space:nowrap}
.cs-popup{
  position:fixed;bottom:96px;right:28px;z-index:500;
  width:280px;background:var(--card);border:1px solid var(--border);
  border-radius:14px;box-shadow:0 8px 32px rgba(0,0,0,.4);
  display:none;flex-direction:column;overflow:hidden;
}
.cs-popup.open{display:flex}
.cs-popup-header{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 16px;border-bottom:1px solid var(--border);
  font-weight:600;font-size:.92rem;
}
.cs-popup-close{
  display:flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:6px;
  border:none;background:transparent;color:var(--muted);
  cursor:pointer;font-size:1.2rem;transition:all .15s;
}
.cs-popup-close:hover{background:rgba(239,68,68,.12);color:#ef4444}
.cs-popup-body{padding:18px 16px;display:flex;flex-direction:column;gap:14px}
.cs-popup-desc{color:var(--muted);font-size:.85rem;margin:0}
.cs-qq{
  display:flex;align-items:center;gap:10px;
  background:rgba(99,102,241,.08);border:1px solid rgba(99,102,241,.2);
  border-radius:10px;padding:12px 14px;
  cursor:pointer;transition:all .2s;
}
.cs-qq:hover{background:rgba(99,102,241,.14);border-color:var(--primary)}
.cs-qq-icon{
  background:var(--primary);color:#fff;font-size:.72rem;
  padding:3px 8px;border-radius:5px;font-weight:700;
}
.cs-qq-num{font-family:monospace;font-size:.95rem;color:var(--text);flex:1}
.cs-qq-copy{font-size:.75rem;color:var(--muted)}
@media(max-width:480px){
  .cs-float{padding:10px 14px;font-size:.82rem;right:16px;bottom:24px}
  .cs-float-label{display:none}
  .cs-popup{right:12px;bottom:80px;width:260px}
}