/* ============================================================
   意克 · 巨量开放平台管理台 —— 样式
   ============================================================ */
:root{
  --brand:#2b6cff; --brand-2:#00d1b2;
  --ink:#0f172a; --muted:#64748b; --line:#e6eaf2;
  --bg:#f4f6fb; --panel:#ffffff;
  --side:#0d1a3a; --side-2:#0a1226;
  --ok:#12a150; --warn:#d97706; --danger:#dc2626;
  --radius:14px;
}
*{box-sizing:border-box;}
body{margin:0;font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;}

/* ---------- 布局 ---------- */
.app{display:flex;min-height:100vh;}
.side{
  width:236px;flex:0 0 236px;background:linear-gradient(180deg,var(--side),var(--side-2));
  color:#c3cfe6;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;
}
.side__brand{display:flex;align-items:center;gap:11px;padding:20px 20px 18px;border-bottom:1px solid rgba(255,255,255,.08);}
.side__mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;flex:0 0 36px;}
.side__mark svg{width:20px;height:20px;}
.side__brand b{display:block;color:#fff;font-size:14.5px;letter-spacing:.2px;}
.side__brand span{font-size:11px;color:#7b8bab;letter-spacing:.08em;}
.side__nav{padding:14px 12px;flex:1;overflow:auto;}
.side__group{font-size:11px;color:#63739a;letter-spacing:.14em;padding:12px 10px 6px;text-transform:uppercase;}
.side__nav a{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;font-size:14px;color:#bcc8e0;margin-bottom:2px;transition:.18s;}
.side__nav a svg{width:18px;height:18px;flex:0 0 18px;opacity:.85;}
.side__nav a:hover{background:rgba(255,255,255,.06);color:#fff;}
.side__nav a.active{background:linear-gradient(135deg,rgba(43,108,255,.9),rgba(0,209,178,.75));color:#fff;box-shadow:0 8px 20px rgba(43,108,255,.28);}
.side__foot{padding:14px 16px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:#6b7ba0;}
.side__foot a{color:#9fb0d0;}
.side__foot a:hover{color:#4ff0d4;}

.main{flex:1;min-width:0;display:flex;flex-direction:column;}
.topbar{
  height:62px;background:#fff;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;padding:0 26px;position:sticky;top:0;z-index:20;
}
.topbar h1{font-size:17px;}
.topbar__user{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);}
.avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:700;}
.content{padding:26px;flex:1;}

/* ---------- 通用 ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);}
.card__head{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;}
.card__head h3{font-size:15px;}
.card__body{padding:20px;}

.btn{display:inline-flex;align-items:center;gap:7px;border:1px solid transparent;border-radius:9px;
  padding:9px 16px;font-size:13.5px;font-weight:600;cursor:pointer;transition:.18s;background:#fff;color:var(--ink);}
.btn--primary{background:linear-gradient(135deg,var(--brand),#1a56d6);color:#fff;box-shadow:0 6px 16px rgba(43,108,255,.26);}
.btn--primary:hover{filter:brightness(1.06);}
.btn--line{border-color:var(--line);color:var(--ink);}
.btn--line:hover{border-color:var(--brand);color:var(--brand);}
.btn--danger{color:var(--danger);border-color:#f3c6c6;background:#fff;}
.btn--danger:hover{background:#fef2f2;}
.btn--sm{padding:6px 12px;font-size:12.5px;}
.btn--block{width:100%;justify-content:center;}

.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;}
.badge--ok{color:var(--ok);background:rgba(18,161,80,.1);}
.badge--warn{color:var(--warn);background:rgba(217,119,6,.1);}
.badge--danger{color:var(--danger);background:rgba(220,38,38,.09);}
.badge--muted{color:var(--muted);background:#eef1f7;}

/* ---------- 统计卡 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px;}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;position:relative;overflow:hidden;}
.stat::after{content:"";position:absolute;right:-18px;top:-18px;width:70px;height:70px;border-radius:50%;background:linear-gradient(135deg,rgba(43,108,255,.10),rgba(0,209,178,.12));}
.stat__label{font-size:12.5px;color:var(--muted);margin-bottom:8px;}
.stat__value{font-size:26px;font-weight:800;letter-spacing:-.02em;}
.stat__hint{font-size:12px;color:var(--muted);margin-top:6px;}
.stat--accent .stat__value{background:linear-gradient(120deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent;}

.grid-2{display:grid;grid-template-columns:1.3fr 1fr;gap:20px;}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:13.5px;}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;}
th{font-size:12px;color:var(--muted);font-weight:600;background:#fafbfe;position:sticky;top:0;}
tbody tr:hover{background:#fafbff;}
td.actions{text-align:right;}
.empty{padding:48px 20px;text-align:center;color:var(--muted);}
.empty svg{width:44px;height:44px;opacity:.35;margin-bottom:12px;}

.toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap;}
.search{display:flex;gap:8px;}
.search input{min-width:260px;}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px 18px;}
.field{display:flex;flex-direction:column;gap:6px;}
.col-4{grid-column:span 4;} .col-6{grid-column:span 6;} .col-12{grid-column:span 12;}
label{font-size:13px;font-weight:600;color:#334155;}
label .req{color:var(--danger);margin-left:3px;}
input,select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px;font-family:inherit;
  background:#fff;color:var(--ink);transition:.16s;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,108,255,.12);}
textarea{min-height:84px;resize:vertical;}
.hint{font-size:12px;color:var(--muted);}
.form-actions{display:flex;gap:10px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line);}

/* ---------- 提示 ---------- */
.alert{display:flex;align-items:flex-start;gap:10px;padding:12px 16px;border-radius:10px;font-size:13.5px;margin-bottom:18px;}
.alert--success{background:rgba(18,161,80,.09);color:#0f7a3d;border:1px solid rgba(18,161,80,.2);}
.alert--error{background:rgba(220,38,38,.07);color:#b91c1c;border:1px solid rgba(220,38,38,.18);}
.alert--warn{background:rgba(217,119,6,.08);color:#92400e;border:1px solid rgba(217,119,6,.2);}
.alert svg{width:16px;height:16px;flex:0 0 16px;margin-top:3px;}

/* ---------- 登录页 ---------- */
.login{min-height:100vh;display:grid;place-items:center;padding:24px;
  background:radial-gradient(900px 520px at 78% -10%,rgba(0,209,178,.18),transparent 60%),
             radial-gradient(760px 460px at 10% 8%,rgba(43,108,255,.26),transparent 62%),
             linear-gradient(160deg,#0a1226,#0d1a3a 60%,#0a1226);}
.login__card{width:100%;max-width:400px;background:#fff;border-radius:18px;padding:34px 32px;box-shadow:0 30px 70px rgba(3,10,28,.35);}
.login__brand{display:flex;align-items:center;gap:12px;margin-bottom:22px;}
.login__brand .side__mark{width:42px;height:42px;flex:0 0 42px;border-radius:12px;}
.login__brand b{display:block;font-size:16px;}
.login__brand span{font-size:12px;color:var(--muted);letter-spacing:.06em;}
.login h2{font-size:20px;margin-bottom:6px;}
.login p.sub{color:var(--muted);font-size:13.5px;margin-bottom:22px;}
.login .field{margin-bottom:16px;}
.login__foot{margin-top:20px;font-size:12px;color:var(--muted);text-align:center;}

/* ---------- 空状态 / 占位 ---------- */
.placeholder{border:1px dashed #cbd5e1;border-radius:var(--radius);padding:30px;text-align:center;color:var(--muted);background:#fafbff;}
.placeholder h4{color:var(--ink);font-size:15px;margin-bottom:8px;}
.plan{margin-top:18px;text-align:left;max-width:640px;margin-left:auto;margin-right:auto;}
.plan li{display:flex;gap:10px;padding:8px 0;font-size:13.5px;color:#475569;}
.plan li svg{width:16px;height:16px;flex:0 0 16px;margin-top:3px;color:var(--brand);}

/* ---------- 分页 ---------- */
.pager{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.pager__links{display:flex;gap:8px;}

@media (max-width:1080px){.stats{grid-template-columns:repeat(2,1fr);}.grid-2{grid-template-columns:1fr;}}
@media (max-width:760px){
  .side{position:fixed;left:0;top:0;z-index:60;transform:translateX(-100%);transition:.25s;}
  .side.is-open{transform:none;}
  .col-4,.col-6{grid-column:span 12;}
  .content{padding:18px;}
  .stats{grid-template-columns:1fr;}
}