/* ============================================================
   购物车页样式（勾选结算 / 数量步进 / 红色删除）
   ============================================================ */
.cart-table-wrap { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); overflow-x: auto; }
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th, .cart-table td { padding: 18px 16px; text-align: center; border-bottom: 1px solid var(--border); vertical-align: middle; }
.cart-table thead th { background: var(--bg); font-size: 12.5px; font-weight: 600; color: var(--text-light); text-transform: uppercase; letter-spacing: .8px; white-space: nowrap; }
.cart-table tbody tr:last-child td { border-bottom: none; }
.cart-table tbody tr { transition: background .2s; }
.cart-table tbody tr:hover { background: rgba(17, 24, 39, .025); }

/* 勾选框（自定义样式，隐藏原生） */
.cart-check { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; vertical-align: middle; }
.cart-check input { position: absolute; opacity: 0; width: 0; height: 0; }
.cart-check i { width: 18px; height: 18px; flex-shrink: 0; border: 1.5px solid #cbd2dc; border-radius: 6px; background: #fff; position: relative; transition: background .2s, border-color .2s, transform .15s; }
.cart-check:hover i { border-color: var(--primary-dark); }
.cart-check:active i { transform: scale(.9); }
.cart-check input:checked + i { background: var(--primary-dark); border-color: var(--primary-dark); }
.cart-check input:checked + i::after { content: ''; position: absolute; left: 5px; top: 2px; width: 4px; height: 8px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.cart-check span { font-size: 13px; color: var(--text-light); }
.col-check { width: 64px; }

/* 商品列 */
.cart-product { display: flex; align-items: center; gap: 14px; text-align: left; min-width: 280px; }
.cart-img { width: 76px; height: 76px; object-fit: cover; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg); transition: box-shadow .25s, transform .25s; }
.cart-row:hover .cart-img { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.cart-product-info { min-width: 0; }
.cart-product-name { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; font-size: 14.5px; font-weight: 500; color: var(--text); line-height: 1.45; max-width: 340px; transition: color .2s; }
.cart-product-name:hover { color: var(--primary-dark); }
.cart-variants { display: inline-block; font-size: 12px; color: var(--text-light); margin-top: 5px; padding: 2px 8px; background: var(--bg); border-radius: 4px; }

/* 价格列：未勾选的行整体淡出 */
.cart-price { color: var(--text-light); white-space: nowrap; }
.cart-subtotal { font-family: var(--font-display); font-weight: 600; color: var(--primary-dark); white-space: nowrap; }
.cart-row:not(.selected) .cart-product-name,
.cart-row:not(.selected) .cart-price,
.cart-row:not(.selected) .cart-subtotal,
.cart-row:not(.selected) .cart-variants { opacity: .45; transition: opacity .25s; }
.cart-row.selected .cart-product-name,
.cart-row.selected .cart-price,
.cart-row.selected .cart-subtotal,
.cart-row.selected .cart-variants { opacity: 1; transition: opacity .25s; }

/* 删除：红色 */
.cart-delete { display: inline-flex; align-items: center; gap: 5px; color: var(--danger); font-size: 13px; font-weight: 500; padding: 6px 10px; border-radius: var(--radius-sm); transition: background .2s, color .2s; white-space: nowrap; }
.cart-delete:hover { color: #b02a2a; background: rgba(214, 69, 69, .09); }
.cart-delete svg { flex-shrink: 0; }
.col-actions { width: 90px; }

/* 底部结算条 */
.cart-summary { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 20px; padding: 16px 20px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.cart-summary-info { margin-left: auto; display: flex; align-items: baseline; gap: 4px; font-size: 14px; color: var(--text-light); white-space: nowrap; }
.cart-summary-info b { color: var(--text); font-weight: 600; }
.cart-amount { font-family: var(--font-display); font-size: 24px; font-weight: 700; color: var(--danger); }

/* 去结算按钮：红色主操作 + 扫光（同详情页"立即购买"风格） */
.cart-checkout-btn {
    position: relative; overflow: hidden;
    min-width: 170px; text-align: center;
    background: var(--accent);
    border: 1px solid var(--accent);
    color: #fff;
    box-shadow: 0 4px 16px rgba(224,86,47,.25);
    transition: all .25s cubic-bezier(.23, 1, .32, 1);
}
.cart-checkout-btn::before {
    content: ''; position: absolute; top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .45), transparent);
    transition: left .5s ease;
}
.cart-checkout-btn:hover {
    background: #c9481f;
    border-color: #c9481f;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(224, 86, 47, .35);
}
.cart-checkout-btn:hover::before { left: 100%; }
.cart-checkout-btn.disabled { opacity: .45; pointer-events: none; }

/* 空购物车状态 */
.cart-empty { display: flex; justify-content: center; padding: 40px 0 90px; }
.cart-empty-card { text-align: center; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 52px 44px 44px; width: 100%; max-width: 460px; animation: cartEmptyIn .4s cubic-bezier(.23,1,.32,1); }
@keyframes cartEmptyIn { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.cart-empty-icon { position: relative; width: 120px; height: 120px; margin: 0 auto 22px; border-radius: 50%; background: radial-gradient(circle at 34% 28%, rgba(17,24,39,.06), rgba(17,24,39,.02) 60%, transparent 75%); display: flex; align-items: center; justify-content: center; }
.cart-empty-icon img { width: 72px; height: 72px; object-fit: contain; opacity: .82; animation: cartFloat 2.6s ease-in-out infinite; }
@keyframes cartFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
.cart-empty-badge { position: absolute; top: 24px; right: 26px; width: 12px; height: 12px; border-radius: 50%; background: var(--danger); box-shadow: 0 0 0 4px rgba(224,36,36,.12); }
.cart-empty-title { font-family: var(--font-title); font-size: 23px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.cart-empty-desc { font-size: 13.5px; color: var(--text-light); margin-bottom: 26px; }
.cart-empty-btn { background: var(--price); border-color: var(--price); color: #fff; min-width: 180px; }
.cart-empty-btn:hover { background: #c51d1d; border-color: #c51d1d; color: #fff; box-shadow: 0 8px 22px rgba(224,36,36,.3); }
@media (max-width: 600px) { .cart-empty-card { padding: 38px 22px 32px; } }

@media (max-width: 768px) {
    /* 表格转卡片：每行一张卡（勾选+商品 / 单价+数量 / 小计+删除 三段） */
    .cart-table-wrap { overflow-x: visible; background: transparent; border: none; box-shadow: none; }
    .cart-table { min-width: 0; }
    .cart-table thead { display: none; }
    .cart-table, .cart-table tbody { display: block; width: 100%; }
    .cart-row {
        display: grid;
        grid-template-columns: auto 1fr auto;
        grid-template-areas:
            "check product product"
            "price  qty     qty"
            "sub    sub     actions";
        align-items: center; gap: 2px 10px;
        background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
        padding: 12px 14px; margin-bottom: 12px; box-shadow: var(--shadow-sm);
    }
    .cart-row td { border-bottom: none; padding: 6px 0; }
    .cart-row .col-check { grid-area: check; }
    .cart-row .cart-product { grid-area: product; min-width: 0; gap: 10px; }
    .cart-row .cart-product-name { max-width: none; }
    .cart-row .cart-price { grid-area: price; text-align: left; }
    .cart-row .cart-price::before { content: '单价 '; font-size: 12px; color: var(--text-light); }
    .cart-row .col-qty { grid-area: qty; justify-self: end; }
    .cart-row .cart-price, .cart-row .col-qty { border-top: 1px dashed var(--border); margin-top: 6px; padding-top: 10px; }
    .cart-row .cart-subtotal { grid-area: sub; text-align: left; }
    .cart-row .cart-subtotal::before { content: '小计 '; font-size: 12px; color: var(--text-light); font-weight: 400; }
    .cart-row .col-actions { grid-area: actions; }
    .cart-row .cart-subtotal, .cart-row .col-actions { border-top: 1px dashed var(--border); margin-top: 6px; padding-top: 10px; }
    .cart-summary { padding: 14px 16px; gap: 12px; }
    .cart-summary-info { margin-left: 0; width: 100%; justify-content: space-between; }
    .cart-checkout-btn { flex: 1; min-width: 0; }
    .cart-amount { font-size: 20px; }
}