/* 歌瞬竞生活馆 - 全局样式 */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --primary: #ff5722;
  --primary-dark: #e64a19;
  --accent: #ff9800;
  --text: #333;
  --text-2: #777;
  --bg: #f6f6f8;
  --card: #fff;
  --border: #eee;
  --green: #16a34a;
  --radius: 12px;
  --shadow: 0 2px 10px rgba(0,0,0,.06);
  --shadow-hover: 0 8px 24px rgba(0,0,0,.12);
}
body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; color: var(--text); background: var(--bg); }
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
button { font-family: inherit; cursor: pointer; }

/* ---------- 头部 ---------- */
.topbar { background: #333; color: #ccc; font-size: 12px; }
.topbar-inner { display: flex; justify-content: space-between; padding: 7px 16px; }
.site-header { background: #fff; box-shadow: var(--shadow); position: sticky; top: 0; z-index: 50; }
.header-main { display: flex; align-items: center; gap: 28px; padding: 16px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark { width: 46px; height: 46px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-size: 24px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.logo-text { font-size: 22px; font-weight: 700; line-height: 1.15; }
.logo-text small { display: block; font-size: 10px; color: var(--text-2); font-weight: 400; }
.search-box { flex: 1; display: flex; max-width: 520px; border: 2px solid var(--primary); border-radius: 24px; overflow: hidden; }
.search-box input { flex: 1; border: none; outline: none; padding: 10px 18px; font-size: 14px; }
.search-box button { border: none; background: var(--primary); color: #fff; padding: 0 26px; font-size: 15px; transition: .2s; }
.search-box button:hover { background: var(--primary-dark); }
.cart-entry { position: relative; flex-shrink: 0; padding: 10px 18px; border: 1px solid var(--border); border-radius: 24px; font-size: 14px; transition: .2s; }
.cart-entry:hover { border-color: var(--primary); color: var(--primary); }
.cart-badge { position: absolute; top: -6px; right: -4px; min-width: 20px; height: 20px; padding: 0 5px; border-radius: 10px; background: var(--primary); color: #fff; font-size: 12px; display: none; align-items: center; justify-content: center; }
.main-nav { border-top: 1px solid var(--border); }
.nav-inner { display: flex; gap: 6px; }
.nav-inner a { padding: 13px 22px; font-size: 15px; position: relative; transition: .2s; }
.nav-inner a:hover { color: var(--primary); }
.nav-inner a.on { color: var(--primary); font-weight: 600; }
.nav-inner a.on::after { content: ''; position: absolute; left: 22px; right: 22px; bottom: 0; height: 3px; border-radius: 2px; background: var(--primary); }

/* ---------- 轮播 ---------- */
.banner { position: relative; margin: 20px auto; border-radius: var(--radius); overflow: hidden; height: 340px; box-shadow: var(--shadow); }
.banner-track { display: flex; height: 100%; transition: transform .6s ease; }
.banner-slide { min-width: 100%; height: 100%; position: relative; }
.banner-slide img { width: 100%; height: 100%; object-fit: cover; }
.banner-text { position: absolute; left: 48px; top: 50%; transform: translateY(-50%); color: #fff; text-shadow: 0 2px 12px rgba(0,0,0,.4); }
.banner-text h2 { font-size: 36px; margin-bottom: 10px; }
.banner-text p { font-size: 16px; margin-bottom: 20px; }
.banner-dots { position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; }
.banner-dots i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.5); cursor: pointer; transition: .2s; }
.banner-dots i.on { background: #fff; width: 24px; border-radius: 5px; }

/* ---------- 通用按钮 ---------- */
.btn { display: inline-block; border: none; border-radius: 24px; padding: 11px 30px; font-size: 15px; transition: .2s; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(255,87,34,.35); }
.btn-outline { background: #fff; border: 1px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-block { display: block; width: 100%; }
.btn-lg { padding: 14px 34px; font-size: 16px; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none !important; }

/* ---------- 板块标题 ---------- */
.section { margin: 34px 0; }
.section-title { display: flex; align-items: baseline; gap: 12px; margin-bottom: 18px; }
.section-title h2 { font-size: 24px; }
.section-title span { color: var(--text-2); font-size: 14px; }
.section-title .more { margin-left: auto; font-size: 14px; color: var(--text-2); }
.section-title .more:hover { color: var(--primary); }

/* ---------- 分类卡片 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cat-card { background: var(--card); border-radius: var(--radius); padding: 26px 20px; text-align: center; box-shadow: var(--shadow); transition: .25s; }
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.cat-card .ico { font-size: 40px; margin-bottom: 10px; }
.cat-card h3 { font-size: 17px; margin-bottom: 4px; }
.cat-card p { font-size: 12px; color: var(--text-2); }

/* ---------- 商品卡片 ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.prod-card { background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: .25s; display: flex; flex-direction: column; }
.prod-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.prod-card .p-img { aspect-ratio: 1; overflow: hidden; }
.prod-card .p-img img { width: 100%; height: 100%; object-fit: cover; transition: .4s; }
.prod-card:hover .p-img img { transform: scale(1.06); }
.prod-card .p-body { padding: 12px 14px 16px; display: flex; flex-direction: column; flex: 1; }
.prod-card .p-name { font-size: 14px; line-height: 1.4; height: 2.8em; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.prod-card .p-tags { margin: 6px 0; display: flex; gap: 4px; flex-wrap: wrap; min-height: 18px; }
.prod-card .p-tags i { font-style: normal; font-size: 11px; color: var(--primary); border: 1px solid var(--primary); border-radius: 3px; padding: 0 4px; }
.prod-card .p-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; }
.price { color: var(--primary); font-weight: 700; font-size: 18px; }
.price small { font-size: 12px; font-weight: 400; }
.price del { color: #bbb; font-size: 12px; font-weight: 400; margin-left: 4px; }
.p-sales { font-size: 12px; color: var(--text-2); }
.add-cart-btn { border: none; background: none; font-size: 20px; transition: .2s; }
.add-cart-btn:hover { transform: scale(1.2); }

/* ---------- 列表页 ---------- */
.layout { display: flex; gap: 20px; margin: 24px 0 40px; align-items: flex-start; }
.sidebar { width: 210px; flex-shrink: 0; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 8px 0; position: sticky; top: 158px; }
.sidebar h3 { padding: 12px 18px; font-size: 15px; border-bottom: 1px solid var(--border); }
.sidebar a { display: block; padding: 12px 18px; font-size: 14px; color: var(--text-2); transition: .15s; border-left: 3px solid transparent; }
.sidebar a:hover { color: var(--primary); background: #fff7f4; }
.sidebar a.on { color: var(--primary); font-weight: 600; border-left-color: var(--primary); background: #fff7f4; }
.list-main { flex: 1; }
.list-bar { display: flex; align-items: center; gap: 8px; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 10px 16px; margin-bottom: 16px; font-size: 13px; flex-wrap: wrap; }
.list-bar .sort-btn { border: 1px solid var(--border); background: #fff; border-radius: 16px; padding: 5px 14px; font-size: 13px; transition: .15s; }
.list-bar .sort-btn.on, .list-bar .sort-btn:hover { border-color: var(--primary); color: var(--primary); }
.list-bar .count { margin-left: auto; color: var(--text-2); }
.empty { text-align: center; padding: 80px 0; color: var(--text-2); }
.empty .big { font-size: 52px; margin-bottom: 12px; }

/* ---------- 详情页 ---------- */
.crumb { font-size: 13px; color: var(--text-2); margin: 18px 0; }
.crumb a:hover { color: var(--primary); }
.detail-card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; display: flex; gap: 36px; margin-bottom: 24px; }
.detail-img { width: 440px; height: 440px; border-radius: var(--radius); overflow: hidden; flex-shrink: 0; }
.detail-img img { width: 100%; height: 100%; object-fit: cover; }
.detail-info { flex: 1; display: flex; flex-direction: column; }
.detail-info h1 { font-size: 22px; line-height: 1.4; margin-bottom: 10px; }
.detail-info .d-tags { display: flex; gap: 6px; margin-bottom: 16px; }
.detail-info .d-tags i { font-style: normal; font-size: 12px; color: var(--primary); border: 1px solid var(--primary); border-radius: 4px; padding: 1px 8px; }
.price-panel { background: #fff7f4; border-radius: 10px; padding: 16px 20px; margin-bottom: 16px; }
.price-panel .now { font-size: 30px; color: var(--primary); font-weight: 700; }
.price-panel del { color: #bbb; margin-left: 10px; }
.price-panel .sale { margin-left: 10px; background: var(--primary); color: #fff; font-size: 12px; border-radius: 4px; padding: 2px 8px; }
.meta-line { font-size: 14px; color: var(--text-2); padding: 8px 0; border-bottom: 1px dashed var(--border); }
.meta-line b { color: var(--text); font-weight: 600; }
.qty-row { display: flex; align-items: center; gap: 12px; margin: 18px 0; }
.qty-ctrl { display: flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.qty-ctrl button { width: 36px; height: 38px; border: none; background: #fafafa; font-size: 18px; }
.qty-ctrl button:hover { background: #f0f0f0; }
.qty-ctrl input { width: 56px; text-align: center; border: none; outline: none; border-left: 1px solid var(--border); border-right: 1px solid var(--border); font-size: 15px; }
.detail-actions { display: flex; gap: 12px; margin-top: auto; }
.spec-card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; margin-bottom: 40px; }
.spec-card h2 { font-size: 18px; margin-bottom: 14px; padding-left: 10px; border-left: 4px solid var(--primary); }
.spec-card p.desc { line-height: 1.9; color: #555; margin-bottom: 18px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.spec-table td { border: 1px solid var(--border); padding: 10px 16px; }
.spec-table td:first-child { width: 140px; background: #fafafa; color: var(--text-2); }

/* ---------- 购物车 ---------- */
.cart-card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); margin: 24px 0 40px; overflow: hidden; }
.cart-head, .cart-row { display: grid; grid-template-columns: 40px 2.6fr 1fr 1.2fr 1fr 0.8fr; align-items: center; gap: 10px; padding: 14px 20px; }
.cart-head { background: #fafafa; font-size: 13px; color: var(--text-2); border-bottom: 1px solid var(--border); }
.cart-row { border-bottom: 1px solid var(--border); }
.cart-row .c-prod { display: flex; align-items: center; gap: 12px; }
.cart-row .c-prod img { width: 64px; height: 64px; border-radius: 8px; object-fit: cover; }
.cart-row .c-prod .n { font-size: 14px; line-height: 1.35; }
.cart-row .c-prod .n:hover { color: var(--primary); }
.cart-row .qty-ctrl { transform: scale(.9); transform-origin: left center; }
.cart-row .subtotal { color: var(--primary); font-weight: 600; }
.cart-row .del { color: var(--text-2); background: none; border: none; font-size: 13px; }
.cart-row .del:hover { color: var(--primary); }
.cart-foot { display: flex; align-items: center; gap: 18px; padding: 16px 20px; background: #fff; }
.cart-foot .total { margin-left: auto; font-size: 15px; }
.cart-foot .total b { color: var(--primary); font-size: 24px; }
.checkbox { width: 18px; height: 18px; accent-color: var(--primary); cursor: pointer; }

/* ---------- 结算页 ---------- */
.checkout-grid { display: flex; gap: 20px; margin: 24px 0 40px; align-items: flex-start; }
.checkout-main { flex: 1; display: flex; flex-direction: column; gap: 20px; }
.panel { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
.panel h2 { font-size: 17px; margin-bottom: 16px; padding-left: 10px; border-left: 4px solid var(--primary); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.field input, .field textarea { width: 100%; border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; font-size: 14px; outline: none; font-family: inherit; transition: .15s; }
.field input:focus, .field textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(255,87,34,.1); }
.field input.err { border-color: #e11d48; }
.pay-opts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.pay-opt { border: 2px solid var(--border); border-radius: 10px; padding: 16px; display: flex; align-items: center; gap: 12px; cursor: pointer; transition: .15s; }
.pay-opt:hover { border-color: #ffd2c2; }
.pay-opt.on { border-color: var(--primary); background: #fff7f4; }
.pay-opt .ico { width: 42px; height: 42px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 22px; color: #fff; }
.pay-opt.wx .ico { background: #09bb07; }
.pay-opt.ali .ico { background: #1677ff; }
.pay-opt h4 { font-size: 15px; }
.pay-opt p { font-size: 12px; color: var(--text-2); }
.order-sum { width: 340px; flex-shrink: 0; position: sticky; top: 158px; }
.sum-items { max-height: 260px; overflow: auto; margin-bottom: 12px; }
.sum-item { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 13px; }
.sum-item img { width: 44px; height: 44px; border-radius: 6px; object-fit: cover; }
.sum-item .n { flex: 1; }
.sum-item .q { color: var(--text-2); }
.sum-row { display: flex; justify-content: space-between; font-size: 14px; padding: 6px 0; color: var(--text-2); }
.sum-row.total { border-top: 1px solid var(--border); margin-top: 8px; padding-top: 12px; color: var(--text); font-size: 15px; }
.sum-row.total b { color: var(--primary); font-size: 24px; }

/* ---------- 支付弹窗 ---------- */
.modal-mask { position: fixed; inset: 0; background: rgba(0,0,0,.5); display: none; align-items: center; justify-content: center; z-index: 100; }
.modal-mask.show { display: flex; }
.modal { background: #fff; border-radius: 16px; width: 380px; padding: 28px; text-align: center; animation: pop .25s ease; }
@keyframes pop { from { transform: scale(.9); opacity: 0; } }
.modal h3 { margin-bottom: 6px; }
.modal .m-amt { color: var(--primary); font-size: 26px; font-weight: 700; margin-bottom: 16px; }
.qr-box { width: 190px; height: 190px; margin: 0 auto 14px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 60px; }
.qr-box.wx { background: #e8f9e6; }
.qr-box.ali { background: #e6f1ff; }
.modal .m-tip { font-size: 13px; color: var(--text-2); margin-bottom: 18px; }
.modal .m-btns { display: flex; gap: 10px; }
.spinner { width: 18px; height: 18px; border: 2px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; display: inline-block; animation: spin .8s linear infinite; vertical-align: -3px; margin-right: 6px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 成功页 ---------- */
.success-card { max-width: 620px; margin: 60px auto; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 48px 40px; text-align: center; }
.success-ico { width: 80px; height: 80px; margin: 0 auto 18px; border-radius: 50%; background: var(--green); color: #fff; font-size: 42px; display: flex; align-items: center; justify-content: center; }
.success-card h1 { font-size: 24px; margin-bottom: 8px; }
.success-card .order-no { color: var(--text-2); margin-bottom: 24px; font-size: 14px; }
.success-card .order-no b { color: var(--text); }
.success-btns { display: flex; gap: 12px; justify-content: center; }

/* ---------- 页脚 ---------- */
.site-footer { background: #2b2b2f; color: #aaa; margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 40px 16px; }
.footer-grid h4 { color: #fff; font-size: 15px; margin-bottom: 12px; }
.footer-grid a, .footer-grid p { display: block; font-size: 13px; margin-bottom: 8px; line-height: 1.6; }
.footer-grid a:hover { color: var(--accent); }
.footer-copy { border-top: 1px solid #3d3d42; text-align: center; font-size: 12px; padding: 16px; color: #888; }

/* ---------- Toast ---------- */
.toast { position: fixed; left: 50%; top: 90px; transform: translateX(-50%) translateY(-12px); background: rgba(0,0,0,.78); color: #fff; padding: 10px 22px; border-radius: 24px; font-size: 14px; opacity: 0; pointer-events: none; transition: .25s; z-index: 200; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-card { flex-direction: column; }
  .detail-img { width: 100%; height: auto; aspect-ratio: 1; }
  .checkout-grid { flex-direction: column; }
  .order-sum { width: 100%; position: static; }
}
@media (max-width: 720px) {
  .header-main { flex-wrap: wrap; gap: 12px; }
  .search-box { order: 3; max-width: none; width: 100%; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .layout { flex-direction: column; }
  .sidebar { width: 100%; position: static; }
  .cart-head { display: none; }
  .cart-row { grid-template-columns: 30px 1fr; grid-auto-rows: auto; }
  .banner { height: 200px; }
  .banner-text h2 { font-size: 22px; }
  .form-grid, .pay-opts { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}