:root{
  --blue:#2563eb; --blue-d:#1d4ed8; --blue-l:#eff6ff; --ink:#0f172a;
  --gray:#64748b; --line:#e2e8f0; --bg:#f8fafc; --green:#16a34a; --red:#dc2626; --amber:#d97706;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.6;-webkit-text-size-adjust:100%}
a{color:var(--blue);text-decoration:none}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
.wrap-wide{max-width:1040px;margin:0 auto;padding:0 16px}

/* 顶栏 */
.topbar{background:linear-gradient(135deg,#2563eb,#1e40af);color:#fff;position:sticky;top:0;z-index:50}
.topbar .wrap{display:flex;align-items:center;gap:18px;height:56px}
.topbar .logo{font-weight:700;font-size:19px;color:#fff;display:flex;align-items:center;gap:8px}
.topbar .nav{display:flex;gap:6px;flex:1}
.topbar .nav a{color:#dbeafe;padding:6px 12px;border-radius:8px;font-size:14px}
.topbar .nav a.active,.topbar .nav a:hover{background:rgba(255,255,255,.18);color:#fff}
.topbar .user{display:flex;align-items:center;gap:10px;font-size:14px}
.topbar .user a{color:#fff;background:rgba(255,255,255,.16);padding:6px 12px;border-radius:8px}
.topbar .user a:hover{background:rgba(255,255,255,.28)}
.cart-badge{display:inline-block;background:#f43f5e;color:#fff;font-size:11px;min-width:16px;height:16px;line-height:16px;text-align:center;border-radius:999px;margin-left:2px;padding:0 4px}

/* 通用 */
.btn{display:inline-block;background:var(--blue);color:#fff;border:none;padding:10px 18px;border-radius:10px;
  font-size:15px;cursor:pointer;font-weight:600;transition:.15s}
.btn:hover{background:var(--blue-d)}
.btn.ghost{background:#fff;color:var(--blue);border:1px solid var(--blue)}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.15s}
.card:hover{box-shadow:0 6px 20px rgba(37,99,235,.12);transform:translateY(-2px)}
.tag{display:inline-block;font-size:12px;padding:2px 9px;border-radius:999px;font-weight:600}
.tag.ticket{background:#eef2ff;color:#4338ca}
.tag.goods{background:#ecfdf5;color:#047857}
.tag.on{background:#dcfce7;color:#16a34a}
.tag.off{background:#f1f5f9;color:#94a3b8}
.empty{text-align:center;color:var(--gray);padding:60px 0}

/* 商品网格 */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:22px 0}
.card .cover{height:170px;background:var(--blue-l);display:flex;align-items:center;justify-content:center;font-size:46px;color:var(--blue)}
.card .body{padding:14px 16px}
.card .body h3{font-size:16px;margin-bottom:4px}
.card .body .sub{color:var(--gray);font-size:13px;min-height:20px}
.card .body .price{color:var(--red);font-weight:700;font-size:18px;margin-top:8px}
.card .body .price small{color:var(--gray);font-weight:400;font-size:12px}

/* 筛选 */
.filters{display:flex;gap:8px;flex-wrap:wrap;padding-top:18px}
.chip{background:#fff;border:1px solid var(--line);padding:7px 16px;border-radius:999px;font-size:14px;cursor:pointer;color:var(--gray)}
.chip.active{background:var(--blue);color:#fff;border-color:var(--blue)}

/* 详情 */
.detail{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding:26px 0}
.detail .gallery{background:var(--blue-l);border-radius:14px;height:320px;display:flex;align-items:center;justify-content:center;font-size:80px;color:var(--blue)}
.detail h1{font-size:24px;margin-bottom:8px}
.detail .price{color:var(--red);font-size:26px;font-weight:700;margin:14px 0}
.detail .meta{color:var(--gray);font-size:14px;margin:6px 0}
.detail .desc{margin:16px 0;color:#334155;white-space:pre-wrap}
.qty{display:flex;align-items:center;gap:10px;margin:18px 0}
.qty button{width:34px;height:34px;border:1px solid var(--line);background:#fff;border-radius:8px;font-size:18px;cursor:pointer}
.qty input{width:56px;text-align:center;height:34px;border:1px solid var(--line);border-radius:8px}

/* 表单 */
.form{max-width:460px;margin:30px auto;background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px}
.form h2{margin-bottom:18px;font-size:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--gray);margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit}
.field textarea{resize:vertical;min-height:80px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.notice{background:#fffbeb;border:1px solid #fde68a;color:#92400e;padding:10px 14px;border-radius:10px;font-size:13px;margin-bottom:16px}

/* 订单 */
.order{border:1px solid var(--line);background:#fff;border-radius:14px;padding:16px;margin-bottom:14px}
.order .hd{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:10px}
.order .hd .no{font-weight:700;font-size:14px}
.order .item{display:flex;justify-content:space-between;font-size:14px;padding:4px 0;color:#334155}
.order .tickets{margin-top:10px;border-top:1px dashed var(--line);padding-top:10px}
.tk{display:flex;align-items:center;gap:10px;padding:6px 0;font-size:13px}
.tk .code{font-family:monospace;font-weight:700;letter-spacing:1px}
.tk .st{margin-left:auto;font-size:12px}
.tk img.qr{width:80px;height:80px;border:1px solid var(--line);border-radius:8px}
.st.used{color:var(--gray)}
.st.unused{color:var(--green)}

/* 弹层 */
.modal{position:fixed;inset:0;background:rgba(15,23,42,.55);display:none;align-items:center;justify-content:center;z-index:100;padding:16px}
.modal.show{display:flex}
.modal .box{background:#fff;border-radius:16px;max-width:420px;width:100%;padding:24px;max-height:88vh;overflow:auto}
.modal .box h3{margin-bottom:14px}

/* 后台 */
.admin-layout{display:grid;grid-template-columns:200px 1fr;min-height:100vh}
.sidebar{background:#0f172a;color:#cbd5e1;padding:18px 0}
.sidebar .brand{padding:0 20px 18px;color:#fff;font-weight:700;font-size:17px;border-bottom:1px solid #1e293b;margin-bottom:10px}
.sidebar a{display:block;padding:11px 20px;color:#cbd5e1;font-size:14px}
.sidebar a:hover,.sidebar a.active{background:#1e293b;color:#fff}
.admin-main{padding:24px 28px;overflow:auto}
.admin-main h1{font-size:22px;margin-bottom:18px}
.stat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:24px}
.stat-cards .sc{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}
.stat-cards .sc .n{font-size:26px;font-weight:700;color:var(--blue)}
.stat-cards .sc .l{color:var(--gray);font-size:13px;margin-top:4px}
.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.table th,.table td{padding:11px 12px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
.table th{background:#f1f5f9;font-weight:600;color:#475569}
.table tr:hover td{background:#f8fafc}

/* 核销 */
.verify-box{text-align:center;max-width:420px;margin:40px auto;background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px}
.verify-box .big{font-size:22px;font-weight:700;margin:14px 0}
.verify-box .ok{color:var(--green)}
.verify-box .err{color:var(--red)}

@media(max-width:820px){
  .grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .detail{grid-template-columns:1fr}
  .stat-cards{grid-template-columns:repeat(2,1fr)}
  .admin-layout{grid-template-columns:1fr}
  .sidebar{display:none}
  .row2{grid-template-columns:1fr}
}

/* 搜索 + banner + 分类 */
.search-bar{display:flex;gap:8px;margin:18px 0 14px}
.search-bar input{flex:1;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px}
.banner{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-bottom:16px}
.banner-item{display:flex;background:linear-gradient(135deg,#3b82f6,#1e40af);color:#fff;border-radius:14px;height:120px;align-items:center;justify-content:center;font-size:18px;font-weight:700;overflow:hidden;position:relative}
.banner-item img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.banner-item span{position:relative;z-index:1;text-shadow:0 2px 8px rgba(0,0,0,.3)}
.cat-row{display:flex;gap:10px;margin-bottom:14px}
.cat{flex:1;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center;font-size:15px;font-weight:600}
.foot{text-align:center;color:#94a3b8;font-size:13px;padding:30px 0;border-top:1px solid var(--line);margin-top:20px}

/* 购物车页 */
.cart-item{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:12px}
.cart-item .ci-cover{width:72px;height:72px;background:var(--blue-l);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:30px;color:var(--blue);flex-shrink:0}
.cart-item .ci-main{flex:1}
.cart-item .ci-main h3{font-size:16px}
.cart-item .ci-price{color:var(--red);font-weight:700}
.qty-ctrl{display:flex;align-items:center;gap:8px}
.qty-ctrl button{width:30px;height:30px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;font-size:16px}
.coupon-row{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.coupon{border:1px dashed var(--blue);color:var(--blue);border-radius:8px;padding:6px 12px;font-size:13px;cursor:pointer}
.coupon.sel{background:var(--blue);color:#fff}

/* 用户中心 */
.uc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:20px 0}
.uc-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;text-align:center}
.uc-card .n{font-size:24px;font-weight:700;color:var(--blue)}
.uc-card .l{color:var(--gray);font-size:13px;margin-top:4px}

/* 订单时间线 */
.order-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.timeline{margin-top:12px;border-top:1px dashed var(--line);padding-top:10px}
.tl{display:flex;align-items:center;gap:10px;font-size:13px;color:#475569;padding:4px 0;flex-wrap:wrap}
.tl .dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.tl small{color:#94a3b8;width:100%;margin-left:18px}