/* ============================================================
   凯酷防洪 · Modern Tech 2025 设计系统
   深色模式 · 毛玻璃 · Bento Grid · 电光青/微光紫
   ============================================================ */

:root{
  --bg-0:#070b16;            /* 最底 */
  --bg-1:#0a0f1e;            /* 主背景 */
  --bg-2:#0e1530;            /* 卡片底 */
  --glass:rgba(18,26,48,.55);
  --glass-2:rgba(24,34,60,.65);
  --border:rgba(120,180,255,.14);
  --border-strong:rgba(120,180,255,.28);
  --cyan:#22d3ee;            /* 电光青 */
  --violet:#a78bfa;          /* 微光紫 */
  --grad:linear-gradient(100deg,#22d3ee 0%,#7cc7ff 45%,#a78bfa 100%);
  --grad-soft:linear-gradient(135deg,rgba(34,211,238,.18),rgba(167,139,250,.18));
  --text:#e6f0ff;
  --text-dim:#9fb3d1;
  --text-mute:#6b7a99;
  --ok:#34d399;
  --warn:#fbbf24;
  --err:#f87171;
  --radius:16px;
  --shadow:0 18px 50px -20px rgba(0,0,0,.7);
  --glow:0 0 24px rgba(34,211,238,.35);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  background:var(--bg-1);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  position:relative;
}

/* 动态粒子/线框背景层 */
#bg-canvas{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.55}
.bg-grid{position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(120,180,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,180,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 70%);
}
.bg-blob{position:fixed;border-radius:50%;filter:blur(90px);z-index:0;pointer-events:none;opacity:.5}
.bg-blob.a{width:520px;height:520px;top:-180px;right:-120px;background:radial-gradient(circle,rgba(34,211,238,.4),transparent 70%)}
.bg-blob.b{width:560px;height:560px;bottom:-220px;left:-160px;background:radial-gradient(circle,rgba(167,139,250,.35),transparent 70%)}

a{color:inherit;text-decoration:none}
::selection{background:rgba(34,211,238,.3);color:#fff}

/* 滚动条 */
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(120,180,255,.2);border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:rgba(120,180,255,.35)}

/* ============ 布局容器 ============ */
.app{position:relative;z-index:1;min-height:100vh;display:flex}
.layout{display:flex;width:100%;min-height:100vh}

/* ============ 侧边栏 ============ */
.sidebar{
  width:248px;flex-shrink:0;padding:26px 18px;
  background:var(--glass);backdrop-filter:blur(24px);
  border-right:1px solid var(--border);
  position:sticky;top:0;height:100vh;overflow-y:auto;
  display:flex;flex-direction:column;
}
.brand{display:flex;align-items:center;gap:11px;padding:0 8px 26px;border-bottom:1px solid var(--border);margin-bottom:18px}
.brand-logo{width:38px;height:38px;border-radius:11px;background:var(--grad);display:grid;place-items:center;
  box-shadow:var(--glow);flex-shrink:0}
.brand-logo svg{width:20px;height:20px}
.brand-name{font-size:16px;font-weight:700;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.brand-sub{font-size:10px;color:var(--text-mute);letter-spacing:1px}

.nav-section{font-size:10px;color:var(--text-mute);text-transform:uppercase;letter-spacing:1.5px;padding:14px 12px 6px}
.nav-item{display:flex;align-items:center;gap:11px;padding:11px 13px;border-radius:11px;color:var(--text-dim);
  font-size:14px;margin-bottom:3px;transition:.2s;cursor:pointer;border:1px solid transparent}
.nav-item:hover{background:rgba(120,180,255,.06);color:var(--text)}
.nav-item.active{background:var(--grad-soft);color:#fff;border-color:var(--border-strong)}
.nav-item svg{width:18px;height:18px;flex-shrink:0;opacity:.85}
.nav-item.active svg{opacity:1}
.nav-badge{margin-left:auto;font-size:11px;background:var(--grad);color:#06121a;font-weight:700;padding:1px 8px;border-radius:8px}

.sidebar-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--border)}
.user-chip{display:flex;align-items:center;gap:10px;padding:10px;border-radius:12px;background:rgba(120,180,255,.05);border:1px solid var(--border)}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--grad);display:grid;place-items:center;font-weight:700;color:#06121a;flex-shrink:0}
.user-meta{min-width:0;flex:1}
.user-meta b{font-size:13px;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.user-meta span{font-size:11px;color:var(--text-mute)}

/* ============ 主区 ============ */
.main{flex:1;min-width:0;padding:28px 38px 60px}
.topbar{display:flex;align-items:center;gap:18px;margin-bottom:30px}
.topbar h1{font-size:24px;font-weight:700}
.topbar .crumb{font-size:13px;color:var(--text-mute)}
.topbar-actions{margin-left:auto;display:flex;gap:10px;align-items:center}
.btn-icon{width:40px;height:40px;border-radius:11px;background:var(--glass);border:1px solid var(--border);display:grid;place-items:center;cursor:pointer;color:var(--text-dim);transition:.2s}
.btn-icon:hover{border-color:var(--border-strong);color:var(--cyan)}
.btn-icon svg{width:18px;height:18px}

/* ============ 卡片 / Glass ============ */
.card{background:var(--glass);backdrop-filter:blur(24px);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card-h{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.card-h h3{font-size:15px;font-weight:600}
.card-h .tag{margin-left:auto;font-size:11px;color:var(--cyan);background:rgba(34,211,238,.1);padding:3px 10px;border-radius:8px;border:1px solid rgba(34,211,238,.25)}

/* ============ Bento Grid ============ */
.bento{display:grid;gap:18px;grid-template-columns:repeat(12,1fr)}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}
@media(max-width:1100px){.col-3,.col-4,.col-5,.col-6{grid-column:span 6}.col-7,.col-8,.col-9{grid-column:span 12}}
@media(max-width:720px){.col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9{grid-column:span 12}}

/* ============ 统计卡 ============ */
.stat{position:relative;overflow:hidden}
.stat::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);opacity:.8}
.stat .label{font-size:12px;color:var(--text-mute);display:flex;align-items:center;gap:6px}
.stat .num{font-size:30px;font-weight:700;margin:8px 0 4px;font-variant-numeric:tabular-nums}
.stat .num .unit{font-size:14px;color:var(--text-dim);font-weight:400;margin-left:4px}
.stat .trend{font-size:12px;display:flex;align-items:center;gap:4px}
.stat .trend.up{color:var(--ok)}
.stat .trend.down{color:var(--err)}
.stat .ico{position:absolute;right:18px;top:18px;width:42px;height:42px;border-radius:12px;background:var(--grad-soft);display:grid;place-items:center;color:var(--cyan)}
.stat .ico svg{width:22px;height:22px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:10px 18px;border-radius:11px;font-size:14px;font-weight:600;cursor:pointer;border:1px solid var(--border);background:var(--glass-2);color:var(--text);transition:.2s;white-space:nowrap}
.btn:hover{border-color:var(--border-strong);transform:translateY(-1px)}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--grad);color:#06121a;border:none;box-shadow:0 8px 24px -8px rgba(34,211,238,.5)}
.btn-primary:hover{box-shadow:0 12px 28px -8px rgba(34,211,238,.7)}
.btn-ghost{background:transparent}
.btn-sm{padding:6px 12px;font-size:12px;border-radius:9px}
.btn-danger{color:#fca5a5;border-color:rgba(248,113,113,.3)}
.btn-danger:hover{background:rgba(248,113,113,.12)}
.btn-block{width:100%}

/* ============ 表单 ============ */
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;color:var(--text-dim);margin-bottom:7px}
.input,.select,.textarea{width:100%;padding:11px 14px;background:rgba(8,12,26,.55);border:1px solid var(--border);border-radius:11px;color:var(--text);font-size:14px;outline:none;transition:.2s;font-family:inherit}
.input:focus,.select:focus,.textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
.textarea{min-height:90px;resize:vertical}
.input-group{display:flex;align-items:stretch}
.input-group .input{border-radius:11px 0 0 11px}
.input-group .addon{padding:0 16px;display:grid;place-items:center;background:rgba(120,180,255,.06);border:1px solid var(--border);border-left:0;border-radius:0 11px 11px 0;font-size:13px;color:var(--text-dim)}
.hint{font-size:12px;color:var(--text-mute);margin-top:5px}

/* 选项卡选择 (防红方式 / 周期) */
.choice-grid{display:grid;gap:12px}
.choice-grid.cols-2{grid-template-columns:repeat(2,1fr)}
.choice-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.choice{position:relative;padding:16px;border-radius:13px;background:rgba(8,12,26,.4);border:1px solid var(--border);cursor:pointer;transition:.2s}
.choice:hover{border-color:var(--border-strong)}
.choice input{position:absolute;opacity:0}
.choice .ct{font-size:15px;font-weight:600;margin-bottom:4px}
.choice .cd{font-size:12px;color:var(--text-mute)}
.choice .price{font-size:18px;font-weight:700;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-top:6px}
.choice .price small{font-size:11px;color:var(--text-mute);-webkit-text-fill-color:var(--text-mute);text-decoration:line-through;margin-left:6px;font-weight:400}
.choice.active{border-color:var(--cyan);background:var(--grad-soft);box-shadow:0 0 0 3px rgba(34,211,238,.1)}
.choice.active::after{content:'';position:absolute;top:12px;right:12px;width:18px;height:18px;border-radius:50%;background:var(--grad);box-shadow:var(--glow)}

/* ============ 表格 ============ */
.table-wrap{overflow-x:auto;border-radius:13px;border:1px solid var(--border)}
table.tbl{width:100%;border-collapse:collapse;font-size:13px}
table.tbl th{padding:13px 16px;text-align:left;font-weight:600;color:var(--text-dim);font-size:12px;text-transform:uppercase;letter-spacing:.5px;background:rgba(120,180,255,.04);border-bottom:1px solid var(--border);white-space:nowrap}
table.tbl td{padding:14px 16px;border-bottom:1px solid rgba(120,180,255,.07);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:0}
table.tbl tr:hover td{background:rgba(120,180,255,.03)}
.mono{font-family:'SF Mono',Consolas,monospace;font-size:12px}
.link-cell{display:flex;align-items:center;gap:8px}
.link-cell .copy{cursor:pointer;color:var(--text-mute);transition:.2s}
.link-cell .copy:hover{color:var(--cyan)}

/* 状态徽章 */
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:8px;font-size:11px;font-weight:600}
.badge::before{content:'';width:6px;height:6px;border-radius:50%}
.badge.ok{background:rgba(52,211,153,.12);color:#6ee7b7}.badge.ok::before{background:#34d399;box-shadow:0 0 8px #34d399}
.badge.warn{background:rgba(251,191,36,.12);color:#fcd34d}.badge.warn::before{background:#fbbf24}
.badge.err{background:rgba(248,113,113,.12);color:#fca5a5}.badge.err::before{background:#f87171}
.badge.info{background:rgba(34,211,238,.12);color:#7ee8f5}.badge.info::before{background:#22d3ee}
.badge.mute{background:rgba(120,180,255,.08);color:var(--text-dim)}.badge.mute::before{background:var(--text-mute)}

/* ============ 图表 ============ */
.chart-box{position:relative;height:220px}
.donut{position:relative;width:160px;height:160px;margin:0 auto}
.donut svg{transform:rotate(-90deg)}
.donut .center{position:absolute;inset:0;display:grid;place-items:center;text-align:center}
.donut .center b{font-size:26px;display:block}
.donut .center span{font-size:11px;color:var(--text-mute)}

/* ============ 登录/注册 ============ */
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;position:relative;z-index:1}
.auth-card{width:100%;max-width:420px;background:var(--glass);backdrop-filter:blur(28px);border:1px solid var(--border-strong);border-radius:22px;padding:40px;box-shadow:var(--shadow)}
.auth-logo{width:54px;height:54px;border-radius:15px;background:var(--grad);display:grid;place-items:center;margin:0 auto 18px;box-shadow:var(--glow)}
.auth-logo svg{width:28px;height:28px}
.auth-card h2{text-align:center;font-size:22px;margin-bottom:6px}
.auth-card .sub{text-align:center;color:var(--text-mute);font-size:13px;margin-bottom:28px}
.auth-foot{text-align:center;margin-top:20px;font-size:13px;color:var(--text-mute)}
.auth-foot a{color:var(--cyan)}

/* ============ Toast ============ */
#toast-wrap{position:fixed;top:24px;right:24px;z-index:9999;display:flex;flex-direction:column;gap:10px}
.toast{min-width:260px;max-width:360px;padding:14px 16px;border-radius:13px;background:var(--glass-2);backdrop-filter:blur(24px);border:1px solid var(--border-strong);display:flex;align-items:center;gap:11px;font-size:14px;animation:slideIn .3s ease;box-shadow:var(--shadow)}
.toast.ok{border-color:rgba(52,211,153,.4)}
.toast.err{border-color:rgba(248,113,113,.4)}
.toast svg{width:18px;height:18px;flex-shrink:0}
@keyframes slideIn{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}

/* ============ Modal ============ */
.mask{position:fixed;inset:0;background:rgba(5,8,16,.7);backdrop-filter:blur(6px);z-index:1000;display:none;align-items:center;justify-content:center;padding:24px}
.mask.show{display:flex}
.modal{width:100%;max-width:520px;background:var(--glass-2);backdrop-filter:blur(28px);border:1px solid var(--border-strong);border-radius:18px;padding:28px;animation:pop .25s ease;max-height:90vh;overflow-y:auto}
@keyframes pop{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}
.modal h3{font-size:17px;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.modal .close{margin-left:auto;cursor:pointer;color:var(--text-mute)}
.modal .close:hover{color:var(--err)}

/* ============ 二维码支付 ============ */
.pay-qr{text-align:center}
.pay-qr img{width:200px;height:200px;border-radius:14px;border:1px solid var(--border);background:#fff;padding:8px}
.pay-qr .amount{font-size:30px;font-weight:700;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:14px 0 4px}
.pay-qr .tip{font-size:12px;color:var(--text-mute)}

/* 分页 */
.pager{display:flex;gap:6px;justify-content:center;margin-top:22px;flex-wrap:wrap}
.pager a,.pager span{min-width:36px;height:36px;padding:0 10px;display:grid;place-items:center;border-radius:9px;border:1px solid var(--border);font-size:13px;color:var(--text-dim)}
.pager a:hover{border-color:var(--border-strong);color:var(--text)}
.pager .cur{background:var(--grad);color:#06121a;border:none;font-weight:600}

/* 空状态 */
.empty{text-align:center;padding:50px 20px;color:var(--text-mute)}
.empty svg{width:48px;height:48px;margin:0 auto 14px;opacity:.4}

/* 跳转页/直开页 公共 */
.bridge{position:fixed;inset:0;z-index:10;display:flex;align-items:center;justify-content:center;background:var(--bg-1);text-align:center;padding:24px}
.bridge-card{max-width:380px;width:100%}
.bridge-logo{width:60px;height:60px;border-radius:18px;background:var(--grad);display:grid;place-items:center;margin:0 auto 22px;box-shadow:var(--glow);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 24px rgba(34,211,238,.35)}50%{box-shadow:0 0 40px rgba(167,139,250,.5)}}
.bridge h2{font-size:21px;margin-bottom:10px}
.bridge p{color:var(--text-dim);font-size:14px;margin-bottom:22px}
.bridge .arrow{font-size:40px;animation:bounce 1.4s infinite;color:var(--cyan)}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.bridge .btn{margin-top:8px}

.iframe-full{position:fixed;inset:0;border:0;width:100%;height:100%;z-index:5}
.loader-bar{position:fixed;top:0;left:0;height:3px;width:30%;background:var(--grad);z-index:20;animation:load 1.2s ease-in-out infinite;box-shadow:var(--glow)}
@keyframes load{0%{left:-30%}100%{left:100%}}

/* 工具类 */
.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:8px}.gap-3{gap:12px}
.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mt-6{margin-top:24px}
.text-cyan{color:var(--cyan)}.text-violet{color:var(--violet)}.text-dim{color:var(--text-dim)}.text-mute{color:var(--text-mute)}
.text-ok{color:var(--ok)}.text-err{color:var(--err)}
.fw-7{font-weight:700}.grad-text{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.right{text-align:right}
.divider{height:1px;background:var(--border);margin:18px 0}
.chip{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:9px;font-size:12px;background:rgba(120,180,255,.07);border:1px solid var(--border);color:var(--text-dim)}

/* ============ 汉堡菜单按钮 (移动端) ============ */
.menu-toggle{display:none;width:42px;height:42px;border-radius:11px;background:var(--glass);border:1px solid var(--border);place-items:center;cursor:pointer;color:var(--text-dim);transition:.2s;flex-shrink:0}
.menu-toggle:hover{border-color:var(--border-strong);color:var(--cyan)}
.menu-toggle svg{width:20px;height:20px}
.menu-toggle .icon-close{display:none}
.menu-toggle.open .icon-menu{display:none}
.menu-toggle.open .icon-close{display:block}

/* 侧边栏遮罩层 (移动端) */
.sidebar-mask{display:none;position:fixed;inset:0;background:rgba(5,8,16,.6);backdrop-filter:blur(4px);z-index:40;opacity:0;transition:opacity .25s;pointer-events:none}
.sidebar-mask.show{display:block;opacity:1;pointer-events:auto}

/* ============ 移动端响应式 ============ */
@media (max-width:900px){
  /* 隐藏侧边栏, 改为抽屉式 */
  .sidebar{
    position:fixed;top:0;left:0;height:100vh;z-index:50;
    transform:translateX(-100%);transition:transform .28s cubic-bezier(.4,0,.2,1);
    width:280px;box-shadow:0 0 50px rgba(0,0,0,.5);
  }
  .sidebar.open{transform:translateX(0)}
  /* 显示汉堡按钮 */
  .menu-toggle{display:grid}
  /* 主区适配 */
  .main{padding:20px 16px 50px}
  .topbar{gap:12px;margin-bottom:22px;flex-wrap:wrap}
  .topbar h1{font-size:20px}
  .topbar-actions{margin-left:auto}
  .topbar-actions .btn span{display:none}
  .topbar-actions .btn{padding:10px 12px}
}

@media (max-width:560px){
  .main{padding:16px 12px 40px}
  .topbar h1{font-size:18px}
  .card{padding:16px}
  .stat .num{font-size:24px}
  .stat .ico{width:36px;height:36px;top:14px;right:14px}
  .stat .ico svg{width:18px;height:18px}
  /* 登录/注册卡 */
  .auth-card{padding:28px 22px}
  /* 表格紧凑 */
  table.tbl th,table.tbl td{padding:10px 12px}
  /* 按钮与工具栏换行 */
  .card-h{flex-wrap:wrap;gap:8px}
  .card-h .tag{font-size:10px}
  /* 模态框 */
  .modal{padding:20px}
  .flex.gap-3{flex-wrap:wrap;gap:8px!important}
}