/* 后台管理系统专用样式 */
:root {
  --admin-bg: #f0f2f5;
  --admin-sidebar: #1a1208;
  --admin-sidebar-hover: rgba(212,168,85,0.12);
  --admin-sidebar-active: rgba(212,168,85,0.2);
  --admin-gold: #d4a855;
  --admin-white: #ffffff;
  --admin-text: #333;
  --admin-text-light: #666;
  --admin-border: #e5e7eb;
  --admin-shadow: 0 2px 12px rgba(0,0,0,0.08);
  --admin-radius: 10px;
  --sidebar-width: 240px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'PingFang SC','Microsoft YaHei',sans-serif;background:var(--admin-bg);color:var(--admin-text);min-height:100vh;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}

/* ── 登录页 ── */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1a1208 0%,#5c4a2a 50%,#8B6914 100%);}
.login-card{background:#fff;border-radius:16px;padding:48px 40px;width:100%;max-width:420px;box-shadow:0 20px 60px rgba(0,0,0,0.3);}
.login-logo{text-align:center;margin-bottom:32px;}
.login-logo img{height:56px;margin:0 auto 12px;}
.login-logo h1{font-size:1.4rem;color:#1a1208;font-weight:700;}
.login-logo p{font-size:0.85rem;color:#888;margin-top:4px;}
.login-form-group{margin-bottom:20px;}
.login-label{display:block;font-size:0.88rem;font-weight:600;color:#444;margin-bottom:8px;}
.login-input{width:100%;padding:12px 16px;border:1.5px solid #e0e0e0;border-radius:8px;font-size:0.95rem;outline:none;transition:all .25s;}
.login-input:focus{border-color:#d4a855;box-shadow:0 0 0 3px rgba(212,168,85,0.15);}
.login-btn{width:100%;padding:14px;background:linear-gradient(135deg,#b8860b,#d4a855);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .25s;letter-spacing:.05em;}
.login-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(184,134,11,0.4);}
.login-error{color:#e74c3c;font-size:0.85rem;margin-top:12px;text-align:center;}

/* ── 整体布局 ── */
.admin-layout{display:flex;min-height:100vh;}

/* ── 侧边栏 ── */
.admin-sidebar{
  width:var(--sidebar-width);
  background:var(--admin-sidebar);
  color:#fff;
  position:fixed;
  top:0;left:0;bottom:0;
  overflow-y:auto;
  z-index:100;
  display:flex;flex-direction:column;
  transition:transform .3s ease;
}
.sidebar-brand{
  padding:20px 20px 16px;
  border-bottom:1px solid rgba(255,255,255,0.08);
  display:flex;align-items:center;gap:12px;
}
.sidebar-brand img{height:36px;filter:brightness(1.3);}
.sidebar-brand span{font-size:1rem;font-weight:700;color:#fff;}
.sidebar-nav{flex:1;padding:16px 0;}
.sidebar-section{font-size:0.7rem;font-weight:600;letter-spacing:.15em;color:rgba(255,255,255,0.35);padding:12px 20px 6px;text-transform:uppercase;}
.sidebar-link{
  display:flex;align-items:center;gap:12px;
  padding:11px 20px;
  font-size:0.9rem;color:rgba(255,255,255,0.7);
  transition:all .2s;
  cursor:pointer;
  border-left:3px solid transparent;
}
.sidebar-link:hover{background:var(--admin-sidebar-hover);color:#fff;}
.sidebar-link.active{background:var(--admin-sidebar-active);color:var(--admin-gold);border-left-color:var(--admin-gold);}
.sidebar-link .icon{width:20px;text-align:center;font-style:normal;font-size:1rem;}
.sidebar-footer{padding:16px 20px;border-top:1px solid rgba(255,255,255,0.08);}
.sidebar-user{display:flex;align-items:center;gap:10px;font-size:0.85rem;color:rgba(255,255,255,0.65);}
.sidebar-user strong{color:#fff;display:block;font-size:0.9rem;}

/* ── 主内容区 ── */
.admin-main{margin-left:var(--sidebar-width);flex:1;display:flex;flex-direction:column;min-height:100vh;}
.admin-topbar{
  height:60px;background:#fff;
  border-bottom:1px solid var(--admin-border);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;
  position:sticky;top:0;z-index:50;
  box-shadow:var(--admin-shadow);
}
.topbar-title{font-size:1rem;font-weight:600;color:var(--admin-text);}
.topbar-actions{display:flex;align-items:center;gap:12px;}
.topbar-btn{
  padding:7px 16px;border-radius:6px;font-size:0.85rem;
  cursor:pointer;border:none;transition:all .2s;
}
.btn-go-front{background:#f0f9f0;color:#27ae60;border:1px solid #c3e6cb;}
.btn-logout{background:#fef2f2;color:#e74c3c;border:1px solid #fecaca;}
.topbar-btn:hover{opacity:.8;transform:translateY(-1px);}

.admin-content{flex:1;padding:24px;}
.page-header{margin-bottom:24px;display:flex;align-items:center;justify-content:space-between;}
.page-header h2{font-size:1.3rem;font-weight:700;color:var(--admin-text);}

/* ── 卡片 ── */
.card{background:#fff;border-radius:var(--admin-radius);box-shadow:var(--admin-shadow);overflow:hidden;}
.card-header{padding:16px 20px;border-bottom:1px solid var(--admin-border);display:flex;align-items:center;justify-content:space-between;}
.card-title{font-size:0.95rem;font-weight:600;}
.card-body{padding:20px;}

/* ── 统计卡片 ── */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px;}
.stat-card{
  background:#fff;border-radius:var(--admin-radius);
  padding:20px 24px;
  box-shadow:var(--admin-shadow);
  display:flex;align-items:center;gap:16px;
  border-left:4px solid var(--admin-gold);
  transition:transform .2s;
}
.stat-card:hover{transform:translateY(-2px);}
.stat-icon{width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;}
.stat-info strong{font-size:1.8rem;font-weight:800;color:var(--admin-text);display:block;line-height:1;}
.stat-info span{font-size:0.82rem;color:var(--admin-text-light);margin-top:4px;display:block;}

/* ── 按钮组 ── */
.btn-admin{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:6px;font-size:0.85rem;font-weight:600;cursor:pointer;border:none;transition:all .2s;}
.btn-admin:hover{opacity:.85;transform:translateY(-1px);}
.btn-admin-primary{background:var(--admin-gold);color:#fff;}
.btn-admin-secondary{background:#f3f4f6;color:var(--admin-text);border:1px solid var(--admin-border);}
.btn-admin-danger{background:#fee2e2;color:#dc2626;border:1px solid #fecaca;}
.btn-admin-success{background:#dcfce7;color:#16a34a;border:1px solid #bbf7d0;}
.btn-admin-sm{padding:5px 10px;font-size:0.8rem;}

/* ── 表格 ── */
.table-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:0.88rem;}
th{background:#f9fafb;padding:10px 14px;text-align:left;font-weight:600;color:var(--admin-text-light);border-bottom:2px solid var(--admin-border);white-space:nowrap;}
td{padding:12px 14px;border-bottom:1px solid #f3f4f6;vertical-align:middle;}
tr:hover td{background:#fafafa;}
.td-actions{display:flex;gap:6px;align-items:center;}

/* ── 状态徽章 ── */
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;font-size:0.78rem;font-weight:600;}
.badge-success{background:#dcfce7;color:#16a34a;}
.badge-warning{background:#fef9c3;color:#a16207;}
.badge-danger{background:#fee2e2;color:#dc2626;}
.badge-info{background:#dbeafe;color:#1d4ed8;}
.badge-gray{background:#f3f4f6;color:#6b7280;}

/* ── 表单 ── */
.form-group-admin{margin-bottom:18px;}
.form-label-admin{display:block;font-size:0.85rem;font-weight:600;color:#444;margin-bottom:6px;}
.form-control{width:100%;padding:9px 12px;border:1.5px solid #e0e0e0;border-radius:6px;font-size:0.9rem;outline:none;transition:all .25s;font-family:inherit;}
.form-control:focus{border-color:var(--admin-gold);box-shadow:0 0 0 3px rgba(212,168,85,0.15);}
textarea.form-control{resize:vertical;min-height:100px;}
.form-row-admin{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-hint{font-size:0.78rem;color:#9ca3af;margin-top:4px;}

/* ── 搜索过滤栏 ── */
.filter-bar{display:flex;gap:12px;align-items:center;margin-bottom:16px;flex-wrap:wrap;}
.filter-input{padding:8px 12px;border:1.5px solid #e0e0e0;border-radius:6px;font-size:0.88rem;outline:none;min-width:200px;}
.filter-input:focus{border-color:var(--admin-gold);}
.filter-select{padding:8px 12px;border:1.5px solid #e0e0e0;border-radius:6px;font-size:0.88rem;outline:none;background:#fff;}

/* ── 模态框 ── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px;}
.modal{background:#fff;border-radius:var(--admin-radius);width:100%;max-width:600px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,0.3);}
.modal-header{padding:16px 20px;border-bottom:1px solid var(--admin-border);display:flex;align-items:center;justify-content:space-between;}
.modal-title{font-size:1rem;font-weight:700;}
.modal-close{background:none;border:none;font-size:1.3rem;cursor:pointer;color:#666;transition:color .2s;line-height:1;}
.modal-close:hover{color:#e74c3c;}
.modal-body{padding:20px;}
.modal-footer{padding:16px 20px;border-top:1px solid var(--admin-border);display:flex;gap:8px;justify-content:flex-end;}
.hidden{display:none!important;}

/* ── 分页 ── */
.pagination{display:flex;gap:6px;align-items:center;justify-content:center;margin-top:20px;}
.page-btn{padding:6px 12px;border:1.5px solid var(--admin-border);border-radius:6px;background:#fff;cursor:pointer;font-size:0.85rem;transition:all .2s;}
.page-btn:hover,.page-btn.active{background:var(--admin-gold);color:#fff;border-color:var(--admin-gold);}
.page-info{font-size:0.85rem;color:var(--admin-text-light);}

/* ── 图片预览 ── */
.img-preview{width:56px;height:40px;object-fit:cover;border-radius:4px;border:1px solid var(--admin-border);}
.upload-area{border:2px dashed #d1d5db;border-radius:8px;padding:24px;text-align:center;cursor:pointer;transition:all .2s;}
.upload-area:hover{border-color:var(--admin-gold);background:#fffbf0;}
.upload-area p{font-size:0.88rem;color:#9ca3af;margin-top:8px;}

/* ── Toast ── */
.admin-toast{position:fixed;top:80px;right:24px;z-index:9999;padding:12px 20px;border-radius:8px;color:#fff;font-size:0.9rem;font-weight:500;box-shadow:0 4px 20px rgba(0,0,0,0.2);transform:translateX(120%);transition:transform .3s cubic-bezier(.34,1.56,.64,1);max-width:360px;}
.admin-toast.show{transform:translateX(0);}
.admin-toast.success{background:#16a34a;}
.admin-toast.error{background:#dc2626;}
.admin-toast.info{background:var(--admin-gold);}

/* 空状态 */
.empty-state{text-align:center;padding:60px 20px;color:#9ca3af;}
.empty-state .empty-icon{font-size:3rem;margin-bottom:12px;}
.empty-state p{font-size:0.95rem;}

/* 响应式 */
@media(max-width:768px){
  .admin-sidebar{transform:translateX(-100%);}
  .admin-sidebar.open{transform:translateX(0);}
  .admin-main{margin-left:0;}
  .stats-row{grid-template-columns:1fr 1fr;}
  .form-row-admin{grid-template-columns:1fr;}
}