/* ===== 达州PG数码 全站样式 ===== */
:root{
  --bg:#0b0f1a; --bg2:#111827; --card:#ffffff; --ink:#1f2937; --ink2:#6b7280;
  --gold:#c9a35c; --gold2:#e6c888; --blue:#2563eb; --green:#16a34a; --red:#dc2626; --orange:#ea580c;
  --line:#e5e7eb; --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:#f3f5f9;color:var(--ink);line-height:1.6}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}

/* 顶部导航 */
.site-header{background:linear-gradient(135deg,#0b0f1a 0%,#1a2332 60%,#24304a 100%);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 16px rgba(0,0,0,.25)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-size:22px;font-weight:700;letter-spacing:1px}
.logo em{color:var(--gold2);font-style:normal}
.logo small{font-size:11px;color:#9ca3af;display:block;letter-spacing:2px;font-weight:400}
.nav a{color:#d1d5db;margin-left:26px;font-size:15px;transition:.2s}
.nav a:hover{color:var(--gold2)}

/* 首屏横幅 */
.hero{background:linear-gradient(135deg,#0b0f1a 0%,#16203a 55%,#2b3a5e 100%);color:#fff;padding:72px 0 80px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(201,163,92,.28),transparent 70%)}
.hero h1{font-size:40px;font-weight:800;letter-spacing:1px}
.hero h1 span{color:var(--gold2)}
.hero p{margin:14px 0 26px;color:#b8c2d6;font-size:16px;max-width:640px}
.hero-badges{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.hero-badges div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);padding:8px 16px;border-radius:99px;font-size:13px;color:#e5e7eb}

/* 按钮 */
.btn{display:inline-block;padding:12px 30px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;border:none;transition:.2s}
.btn-gold{background:linear-gradient(135deg,#d4af6a,#b8924a);color:#1a1a1a}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(201,163,92,.4)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{opacity:.9}
.btn-gray{background:#e5e7eb;color:#374151}
.btn-sm{padding:6px 14px;font-size:13px;border-radius:8px}
.btn-green{background:var(--green);color:#fff}
.btn-red{background:var(--red);color:#fff}

/* 区块标题 */
.sec{padding:46px 0 10px}
.sec-title{font-size:26px;font-weight:700;display:flex;align-items:center;gap:12px}
.sec-title::before{content:"";width:5px;height:24px;background:linear-gradient(180deg,var(--gold2),var(--gold));border-radius:3px}
.sec-sub{color:var(--ink2);font-size:14px;margin:6px 0 24px}

/* 商品卡片 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(262px,1fr));gap:22px;padding-bottom:50px}
.card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 10px rgba(16,24,40,.06);transition:.25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(16,24,40,.14)}
.card .thumb{height:210px;background:linear-gradient(135deg,#1f2937,#374151);display:flex;align-items:center;justify-content:center;color:#9ca3af;font-size:15px;position:relative;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .thumb .cond-tag{position:absolute;top:12px;left:12px;background:linear-gradient(135deg,#d4af6a,#b8924a);color:#1a1a1a;font-size:12px;font-weight:700;padding:3px 12px;border-radius:99px}
.card .body{padding:16px 18px 18px;flex:1;display:flex;flex-direction:column}
.card .name{font-size:16px;font-weight:700;margin-bottom:4px}
.card .spec{font-size:13px;color:var(--ink2);margin-bottom:12px}
.card .price-row{margin-top:auto;display:flex;align-items:baseline;gap:8px}
.price{color:var(--red);font-size:22px;font-weight:800}
.price::before{content:"¥";font-size:14px;margin-right:1px}
.orig-price{color:#9ca3af;font-size:13px;text-decoration:line-through}
.stock-tag{margin-left:auto;font-size:12px;color:var(--ink2)}

/* 详情页 */
.detail{display:grid;grid-template-columns:460px 1fr;gap:40px;background:#fff;border-radius:var(--radius);padding:34px;margin:40px 0;box-shadow:0 2px 12px rgba(16,24,40,.06)}
.detail .pic{height:420px;border-radius:12px;background:linear-gradient(135deg,#1f2937,#374151);display:flex;align-items:center;justify-content:center;color:#9ca3af;overflow:hidden}
.detail .pic img{width:100%;height:100%;object-fit:cover}
.detail h1{font-size:28px;margin-bottom:8px}
.spec-table{width:100%;border-collapse:collapse;margin:18px 0}
.spec-table td{padding:9px 4px;border-bottom:1px solid var(--line);font-size:14px}
.spec-table td:first-child{color:var(--ink2);width:90px}
.buy-box{background:#faf7f0;border:1px solid #eadfc8;border-radius:12px;padding:20px;margin-top:10px}

/* 表单 */
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.input,select.input,textarea.input{width:100%;padding:11px 14px;border:1px solid #d1d5db;border-radius:10px;font-size:15px;font-family:inherit;background:#fff;transition:.2s}
.input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,163,92,.18)}
textarea.input{resize:vertical;min-height:90px}
.form-card{background:#fff;border-radius:var(--radius);padding:34px;max-width:640px;margin:36px auto;box-shadow:0 2px 12px rgba(16,24,40,.07)}

/* 支付二维码 */
.pay-methods{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:14px 0 20px}
.pay-methods label{border:2px solid var(--line);border-radius:12px;padding:16px 10px;text-align:center;cursor:pointer;font-weight:600;font-size:15px;transition:.2s;display:block}
.pay-methods input{display:none}
.pay-methods label:has(input:checked){border-color:var(--gold);background:#fbf6ea}
.qr-box{display:flex;gap:26px;flex-wrap:wrap;margin-top:16px}
.qr-item{text-align:center}
.qr-item img,.qr-item .qr-ph{width:190px;height:190px;border-radius:12px;border:1px solid var(--line);object-fit:cover}
.qr-item .qr-ph{display:flex;align-items:center;justify-content:center;background:#f9fafb;color:#9ca3af;font-size:13px;padding:14px}
.qr-item p{margin-top:8px;font-size:14px;font-weight:600}

/* 徽标 */
.badge{display:inline-block;padding:3px 12px;border-radius:99px;font-size:12px;font-weight:700}
.b-pending{background:#fef3c7;color:#b45309}
.b-paid{background:#dbeafe;color:#1d4ed8}
.b-shipped{background:#ede9fe;color:#6d28d9}
.b-completed{background:#dcfce7;color:#15803d}
.b-cancelled{background:#f3f4f6;color:#6b7280}

/* 页脚 */
.site-footer{background:var(--bg);color:#9ca3af;padding:44px 0 30px;margin-top:30px;font-size:14px}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:34px;margin-bottom:26px}
.site-footer h4{color:#e5e7eb;font-size:15px;margin-bottom:12px}
.site-footer .bottom{border-top:1px solid #1f2937;padding-top:18px;text-align:center;font-size:13px;color:#6b7280}

/* 后台 */
.admin-body{background:#0f1420;min-height:100vh}
.admin-top{background:#0b0f1a;color:#fff;padding:0 26px;height:58px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #1f2937}
.admin-top .logo{font-size:18px}
.admin-top a{color:#9ca3af;font-size:14px;margin-left:20px}
.admin-top a:hover{color:var(--gold2)}
.admin-main{display:flex;min-height:calc(100vh - 58px)}
.admin-side{width:210px;background:#111827;padding:20px 0;flex-shrink:0}
.admin-side a{display:block;color:#9ca3af;padding:12px 24px;font-size:14px;border-left:3px solid transparent;transition:.2s}
.admin-side a:hover{color:#fff;background:#1f2937}
.admin-side a.on{color:var(--gold2);border-left-color:var(--gold);background:#1a2332}
.admin-content{flex:1;padding:28px;background:#f3f5f9}
.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;margin-bottom:26px}
.stat{background:#fff;border-radius:12px;padding:22px;box-shadow:0 1px 6px rgba(16,24,40,.06)}
.stat .num{font-size:30px;font-weight:800;margin-top:4px}
.stat .lbl{font-size:13px;color:var(--ink2)}
.panel{background:#fff;border-radius:12px;padding:24px;box-shadow:0 1px 6px rgba(16,24,40,.06);margin-bottom:22px}
.panel h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between}
table.tb{width:100%;border-collapse:collapse;font-size:14px}
table.tb th{background:#f9fafb;text-align:left;padding:11px 12px;color:#374151;font-weight:600;border-bottom:1px solid var(--line);white-space:nowrap}
table.tb td{padding:11px 12px;border-bottom:1px solid #f0f1f4;vertical-align:middle}
table.tb tr:hover td{background:#fafbfc}
.tb-img{width:52px;height:52px;border-radius:8px;object-fit:cover;background:#e5e7eb}
.flash{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46;padding:12px 18px;border-radius:10px;margin-bottom:18px;font-size:14px}
.flash.err{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.inline-form{display:inline}
.login-box{background:#fff;border-radius:16px;padding:44px;max-width:400px;margin:80px auto;box-shadow:0 10px 40px rgba(0,0,0,.3)}

/* 响应式 */
@media(max-width:860px){
  .hero h1{font-size:28px}
  .detail{grid-template-columns:1fr;padding:22px}
  .detail .pic{height:300px}
  .site-footer .cols{grid-template-columns:1fr}
  .pay-methods{grid-template-columns:1fr}
  .admin-side{width:64px}
  .admin-side a{padding:12px 8px;font-size:12px;text-align:center}
  .nav a{margin-left:12px;font-size:13px}
}