/* ==========================================================
   轻卡发卡系统 · 前台样式（响应式：手机 / 平板 / 电脑）
   ========================================================== */

:root{
    --primary:#4f46e5;
    --primary-dark:#4338ca;
    --primary-soft:#eef2ff;
    --bg:#f5f7fb;
    --card:#ffffff;
    --text:#1f2937;
    --muted:#6b7280;
    --border:#e5e7eb;
    --success:#16a34a;
    --danger:#dc2626;
    --warn:#f59e0b;
    --radius:14px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
    background:var(--bg);
    color:var(--text);
    font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
    -webkit-font-smoothing:antialiased;
    min-height:100vh;
    display:flex;
    flex-direction:column;
}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:none}
img{max-width:100%}

.wrap{max-width:1120px;margin:0 auto;padding:0 16px;width:100%}
.main{flex:1 1 auto;padding:20px 16px 40px}

/* ---------- 顶部导航 ---------- */
.topbar{
    background:linear-gradient(135deg,#4f46e5,#6366f1);
    color:#fff;
    box-shadow:0 2px 12px rgba(79,70,229,.25);
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:56px}
.logo{display:flex;align-items:center;gap:6px;color:#fff;font-size:18px;font-weight:700}
.logo-icon{font-size:20px}
.logo-text{max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav{display:flex;gap:4px}
.nav-item{
    color:#e0e7ff;padding:7px 14px;border-radius:20px;font-size:14px;transition:.2s;
}
.nav-item:hover,.nav-item.active{background:rgba(255,255,255,.18);color:#fff}

/* ---------- 公告条 ---------- */
.notice-bar{background:#fffbeb;border-bottom:1px solid #fde68a;color:#92400e}
.notice-bar .wrap{padding-top:8px;padding-bottom:8px;font-size:13px}

/* ---------- 通用卡片 ---------- */
.card{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:20px;
    box-shadow:0 2px 10px rgba(15,23,42,.04);
}
.card + .card{margin-top:16px}
.card-title{font-size:17px;font-weight:700;margin:0 0 14px}

/* ---------- 首页 Banner ---------- */
.hero{
    background:linear-gradient(135deg,#6366f1,#8b5cf6);
    border-radius:var(--radius);
    padding:28px 24px;
    color:#fff;
    margin-bottom:18px;
    box-shadow:0 10px 24px rgba(99,102,241,.25);
}
.hero h1{margin:0 0 8px;font-size:24px;font-weight:800}
.hero p{margin:0;opacity:.9;font-size:14px}
.hero-tips{display:flex;gap:16px;margin-top:14px;flex-wrap:wrap;font-size:13px;opacity:.95}
.hero-tips span{display:flex;align-items:center;gap:4px}

/* ---------- 分类导航 ---------- */
.cat-tabs{
    display:flex;gap:8px;overflow-x:auto;padding:4px 0 12px;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
}
.cat-tabs::-webkit-scrollbar{display:none}
.cat-tab{
    flex:none;padding:7px 16px;border-radius:20px;background:#fff;border:1px solid var(--border);
    color:var(--text);font-size:14px;cursor:pointer;transition:.2s;user-select:none;
}
.cat-tab:hover{border-color:var(--primary);color:var(--primary)}
.cat-tab.active{background:var(--primary);border-color:var(--primary);color:#fff}

/* ---------- 商品网格 ---------- */
.product-grid{
    display:grid;
    grid-template-columns:repeat(auto-fill,minmax(180px,1fr));
    gap:14px;
}
.product-card{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:16px;
    display:flex;flex-direction:column;
    transition:.2s;
    position:relative;
}
.product-card:hover{transform:translateY(-3px);box-shadow:0 10px 22px rgba(15,23,42,.08);border-color:#c7d2fe}
.pc-media{
    height:88px;display:flex;align-items:center;justify-content:center;
    font-size:44px;background:var(--primary-soft);border-radius:10px;margin-bottom:12px;overflow:hidden;
}
.pc-media img{width:100%;height:100%;object-fit:cover}
.pc-name{font-weight:700;font-size:15px;margin-bottom:4px;line-height:1.4;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pc-sub{color:var(--muted);font-size:12.5px;margin-bottom:10px;min-height:20px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pc-meta{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:10px}
.pc-price{color:var(--danger);font-size:19px;font-weight:800}
.pc-price small{font-size:12px;font-weight:600}
.pc-stock{font-size:12px;color:var(--muted)}
.pc-stock.out{color:var(--danger)}
.pc-buy{margin-top:auto}
.badge-out{
    position:absolute;top:8px;right:8px;background:var(--danger);color:#fff;
    font-size:11px;padding:2px 8px;border-radius:10px;
}

/* ---------- 按钮 ---------- */
.btn{
    display:inline-block;padding:10px 18px;border-radius:9px;border:1px solid var(--border);
    background:#fff;color:var(--text);font-size:14px;cursor:pointer;text-align:center;
    transition:.15s;line-height:1.4;
}
.btn:hover{opacity:.9}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-success{background:var(--success);border-color:var(--success);color:#fff}
.btn-danger{background:#fff;border-color:var(--danger);color:var(--danger)}
.btn-block{display:block;width:100%}
.btn-lg{padding:13px 22px;font-size:15px}
.btn:disabled,.btn.disabled{background:#f3f4f6;color:#9ca3af;border-color:var(--border);cursor:not-allowed}

/* ---------- 表单 ---------- */
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.form-row .tip{color:var(--muted);font-size:12px;margin-top:5px}
input[type=text],input[type=email],input[type=number],input[type=password],select,textarea{
    width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:9px;
    font-size:14px;background:#fff;color:var(--text);outline:none;transition:.15s;
}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
textarea{min-height:110px;resize:vertical;font-family:ui-monospace,Consolas,monospace}

/* ---------- 商品详情 ---------- */
.detail-grid{display:grid;grid-template-columns:1fr 380px;gap:16px;align-items:start}
.detail-media{
    font-size:64px;background:var(--primary-soft);border-radius:12px;
    height:180px;display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.detail-media img{width:100%;height:100%;object-fit:cover}
.detail-name{font-size:20px;font-weight:800;margin:0 0 8px}
.detail-sub{color:var(--muted);margin:0 0 16px}
.detail-price{color:var(--danger);font-size:30px;font-weight:800;margin:0 0 4px}
.detail-price small{font-size:16px}
.pay-methods{display:flex;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.pay-method{
    flex:1;min-width:120px;border:1px solid var(--border);border-radius:10px;padding:12px;
    cursor:pointer;text-align:center;transition:.15s;background:#fff;
}
.pay-method:hover{border-color:var(--primary)}
.pay-method.active{border-color:var(--primary);background:var(--primary-soft);box-shadow:0 0 0 2px rgba(79,70,229,.15)}
.pay-method .pm-ico{font-size:22px;display:block}
.pay-method .pm-name{font-size:13px;margin-top:2px;display:block}
.qty-box{display:flex;align-items:center;gap:8px}
.qty-box input{width:80px;text-align:center}

/* ---------- 收银台 ---------- */
.pay-box{max-width:520px;margin:0 auto}
.order-info{list-style:none;padding:0;margin:0 0 16px;font-size:14px}
.order-info li{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed var(--border)}
.order-info li:last-child{border-bottom:none}
.order-info .k{color:var(--muted)}
.order-info .v{font-weight:600}
.amount{font-size:32px;color:var(--danger);font-weight:800;text-align:center;margin:10px 0}
.qr-box{text-align:center;padding:16px}
.qr-box canvas,.qr-box img{margin:0 auto}
.qr-tip{color:var(--muted);font-size:13px;margin-top:10px}
.countdown{text-align:center;color:var(--warn);font-size:13px;margin-top:8px}

/* ---------- 卡密展示 ---------- */
.card-item{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    background:#f8fafc;border:1px solid var(--border);border-radius:10px;padding:12px 14px;margin-bottom:10px;
}
.card-item .ct{
    font-family:ui-monospace,Consolas,monospace;font-size:15px;word-break:break-all;flex:1;
    letter-spacing:.3px;
}
.card-item .i{color:var(--muted);font-size:12px}
.copy-all{margin-top:6px}

/* ---------- 提示页 ---------- */
.center-box{max-width:520px;margin:20px auto;text-align:center;padding:32px 24px}
.msg-title{margin:0 0 10px;font-size:19px}
.msg-content{color:var(--muted);margin:0 0 18px;word-break:break-all}
.icon-lg{font-size:52px;margin-bottom:10px}

/* ---------- 空状态 ---------- */
.empty{text-align:center;color:var(--muted);padding:50px 20px}
.empty .icon{font-size:44px;display:block;margin-bottom:10px}

/* ---------- 页脚 ---------- */
.footer{background:#0f172a;color:#94a3b8;padding:22px 0;font-size:13px;margin-top:auto}
.footer p{margin:2px 0}
.footer .icp{opacity:.7}

/* ---------- 移动端适配 ---------- */
@media (max-width:860px){
    .detail-grid{grid-template-columns:1fr}
}
@media (max-width:600px){
    .wrap{padding:0 12px}
    .main{padding:14px 12px 30px}
    .hero{padding:20px 16px}
    .hero h1{font-size:20px}
    .product-grid{grid-template-columns:repeat(2,1fr);gap:10px}
    .product-card{padding:12px}
    .pc-media{height:66px;font-size:34px}
    .pc-name{font-size:14px}
    .pc-price{font-size:17px}
    .topbar-inner{height:52px}
    .logo-text{font-size:16px}
    .nav-item{padding:6px 10px;font-size:13px}
    .detail-price{font-size:26px}
    .card{padding:16px}
}