/* ============================================================
   lingshi 灵石商城 · 前台样式
   ============================================================ */
:root {
    --ls-primary: #ff5000;
    --ls-primary-dark: #e64600;
    --ls-danger: #ef4444;
    --ls-price: #ff5000;
    --ls-text: #1f2937;
    --ls-text-light: #6b7280;
    --ls-border: #eceef3;
    --ls-bg: #f4f4f4;
    --ls-radius: 12px;
    --ls-shadow: 0 6px 22px rgba(15, 23, 42, .07);
    --ls-max: 1200px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--ls-text);
    background: var(--ls-bg);
}
a { color: inherit; text-decoration: none; transition: color .2s; }
a:hover { color: var(--ls-primary); }
img { max-width: 100%; display: block; border: 0; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 600; }
p { margin: 0 0 10px; }
input, textarea, select, button { font-family: inherit; font-size: 14px; color: inherit; }
table { border-collapse: collapse; width: 100%; }

/* 布局 */
.ls-wrap { max-width: var(--ls-max); margin: 0 auto; padding: 0 16px; }
.ls-main { margin: 18px auto 34px; }
.ls-row { display: flex; flex-wrap: wrap; gap: 16px; }
.ls-col { flex: 1 1 0; min-width: 0; }
.ls-card { background: #fff; border-radius: var(--ls-radius); box-shadow: var(--ls-shadow); padding: 18px 20px; margin-bottom: 16px; }

/* 顶部条 */
.ls-topbar { background: #1f2430; color: #cbd5e1; font-size: 12.5px; }
.ls-topbar .ls-wrap { display: flex; align-items: center; justify-content: space-between; height: 36px; }
.ls-topbar a { color: #cbd5e1; }
.ls-topbar a:hover { color: #fff; }
.ls-topbar .sep { color: #475569; margin: 0 9px; }

/* 头部 */
.ls-header { background: #fff; }
.ls-header .ls-wrap { display: flex; align-items: center; gap: 26px; padding: 20px 16px; }
.ls-logo { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.ls-logo b { font-size: 24px; letter-spacing: 1px; color: var(--ls-primary); }
.ls-logo i { width: 34px; height: 34px; border-radius: 10px; background: linear-gradient(135deg, #4f46e5, #9333ea); color: #fff; display: flex; align-items: center; justify-content: center; font-style: normal; font-weight: 700; }
.ls-logo small { display: block; font-size: 11.5px; color: var(--ls-text-light); letter-spacing: 2px; }
.ls-search { flex: 1 1 auto; display: flex; max-width: 560px; }
.ls-search input { flex: 1; height: 42px; border: 2px solid var(--ls-primary); border-right: 0; border-radius: 10px 0 0 10px; padding: 0 14px; outline: none; }
.ls-search button { width: 92px; border: 0; background: var(--ls-primary); color: #fff; border-radius: 0 10px 10px 0; cursor: pointer; }
.ls-search button:hover { background: var(--ls-primary-dark); }
.ls-header-cart { flex: 0 0 auto; position: relative; display: flex; align-items: center; gap: 8px; padding: 9px 18px; border-radius: 10px; background: #f3f4ff; color: var(--ls-primary); font-weight: 600; }
.ls-header-cart:hover { background: #e8e9ff; }
.ls-badge { position: absolute; top: -6px; right: -4px; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px; background: var(--ls-price); color: #fff; font-size: 11px; line-height: 18px; text-align: center; }

/* 导航 */
.ls-nav { background: #fff; border-top: 1px solid var(--ls-border); box-shadow: 0 2px 10px rgba(15, 23, 42, .04); position: relative; z-index: 20; }
.ls-nav > .ls-wrap { display: flex; align-items: center; gap: 6px; min-height: 46px; }
.ls-nav a { padding: 8px 14px; border-radius: 8px; font-size: 14.5px; }
.ls-nav a:hover, .ls-nav a.on { background: #eef2ff; color: var(--ls-primary); }
.ls-nav .more-menu { position: relative; }
.ls-nav .sub { display: none; position: absolute; left: 0; top: 100%; width: 220px; background: #fff; border-radius: 0 0 12px 12px; box-shadow: var(--ls-shadow); padding: 8px 0; }
.ls-nav .sub a { display: block; border-radius: 0; padding: 8px 18px; font-size: 13.5px; }
.ls-nav .more-menu:hover .sub { display: block; }

/* 面包屑 */
.ls-crumb { font-size: 13px; color: var(--ls-text-light); margin: 14px 0 0; }
.ls-crumb a { color: var(--ls-text-light); }
.ls-crumb span { margin: 0 6px; color: #cbd5e1; }

/* 区块标题 */
.ls-title { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 14px; }
.ls-title h2 { font-size: 19px; }
.ls-title h2 em { font-style: normal; color: var(--ls-primary); margin-right: 8px; }
.ls-title .more { font-size: 13px; color: var(--ls-text-light); }

/* 商品网格 */
.ls-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 16px; }
.ls-goods { background: #fff; border-radius: var(--ls-radius); overflow: hidden; box-shadow: var(--ls-shadow); transition: transform .18s, box-shadow .18s; display: flex; flex-direction: column; }
.ls-goods:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(15, 23, 42, .12); }
.ls-goods .pic { position: relative; display: block; padding-top: 100%; background: #f8fafc; }
.ls-goods .pic img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ls-goods .flag { position: absolute; left: 8px; top: 8px; background: var(--ls-price); color: #fff; font-size: 11px; padding: 2px 8px; border-radius: 999px; }
.ls-goods .info { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.ls-goods .name { font-size: 14.5px; line-height: 1.45; height: 2.9em; overflow: hidden; }
.ls-goods .sub { font-size: 12.5px; color: var(--ls-text-light); height: 1.5em; overflow: hidden; }
.ls-goods .price { display: flex; align-items: baseline; gap: 8px; margin-top: auto; }
.ls-goods .price b { color: var(--ls-price); font-size: 18px; }
.ls-goods .price s { color: #b6bcc7; font-size: 12.5px; }
.ls-goods .meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--ls-text-light); }

/* 首页结构 */
.ls-home { display: grid; grid-template-columns: 216px 1fr; gap: 16px; align-items: start; }
.ls-side-cat { background: #fff; border-radius: var(--ls-radius); box-shadow: var(--ls-shadow); overflow: hidden; }
.ls-side-cat .hd { padding: 12px 16px; font-weight: 600; background: linear-gradient(120deg, #4f46e5, #7c3aed); color: #fff; }
.ls-side-cat .item { padding: 9px 16px; border-bottom: 1px solid var(--ls-border); }
.ls-side-cat .item a { font-weight: 600; }
.ls-side-cat .item p { margin: 2px 0 0; font-size: 12.5px; color: var(--ls-text-light); }
.ls-side-cat .item p a { color: var(--ls-text-light); margin-right: 8px; }
.ls-banner { position: relative; border-radius: var(--ls-radius); overflow: hidden; box-shadow: var(--ls-shadow); background: #fff; }
.ls-banner .slide { display: none; }
.ls-banner .slide.on { display: block; }
.ls-banner a { display: block; position: relative; }
.ls-banner .txt { position: absolute; left: 34px; bottom: 34px; color: #fff; text-shadow: 0 2px 12px rgba(0, 0, 0, .35); }
.ls-banner .txt h3 { font-size: 26px; margin-bottom: 6px; }
.ls-banner .dots { position: absolute; right: 20px; bottom: 20px; display: flex; gap: 7px; }
.ls-banner .dots i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255, 255, 255, .5); cursor: pointer; }
.ls-banner .dots i.on { background: #fff; }
.ls-service { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.ls-service div { background: #fff; border-radius: var(--ls-radius); box-shadow: var(--ls-shadow); padding: 14px 16px; font-size: 13px; color: var(--ls-text-light); }
.ls-service div b { display: block; color: var(--ls-text); font-size: 15px; margin-bottom: 2px; }

/* 筛选条 */
.ls-filter { background: #fff; border-radius: var(--ls-radius); box-shadow: var(--ls-shadow); padding: 12px 16px; margin-bottom: 16px; }
.ls-filter .line { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; padding: 5px 0; font-size: 13.5px; }
.ls-filter .line > label { color: var(--ls-text-light); flex: 0 0 68px; }
.ls-filter a { padding: 4px 12px; border-radius: 8px; color: var(--ls-text); }
.ls-filter a.on { background: var(--ls-primary); color: #fff; }
.ls-filter .ipt { width: 62px; height: 28px; border: 1px solid var(--ls-border); border-radius: 7px; padding: 0 8px; }
.ls-filter .mini { padding: 5px 14px; border-radius: 7px; background: #f3f4f6; border: 0; cursor: pointer; }

/* 商品详情 */
.ls-detail { display: grid; gap: 16px; }
.ls-detail-main { display: grid; grid-template-columns: 420px 1fr; gap: 26px; background: #fff; border-radius: var(--ls-radius); box-shadow: var(--ls-shadow); padding: 22px; }
.ls-gallery .big { border-radius: 10px; overflow: hidden; background: #f8fafc; }
.ls-gallery .thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.ls-gallery .thumbs img { width: 62px; height: 62px; object-fit: cover; border-radius: 8px; border: 2px solid transparent; cursor: pointer; }
.ls-gallery .thumbs img.on { border-color: var(--ls-primary); }
.ls-buy-title h1 { font-size: 22px; line-height: 1.4; }
.ls-buy-title .sub { color: var(--ls-text-light); font-size: 13.5px; margin: 6px 0 12px; }
.ls-price-box { background: linear-gradient(120deg, #fff5f2, #ffece6); border-radius: 10px; padding: 16px 18px; margin-bottom: 16px; }
.ls-price-box .now { font-size: 30px; color: var(--ls-price); font-weight: 700; }
.ls-price-box .old { color: #9aa3b0; text-decoration: line-through; margin-left: 10px; font-size: 14px; }
.ls-price-box .tips { font-size: 12.5px; color: var(--ls-text-light); margin-top: 6px; }
.ls-props { margin-bottom: 12px; }
.ls-props .row { display: flex; gap: 12px; padding: 8px 0; align-items: flex-start; }
.ls-props .row > span { flex: 0 0 74px; color: var(--ls-text-light); }
.ls-spec { display: inline-flex; align-items: center; gap: 6px; padding: 7px 16px; border: 1px solid var(--ls-border); border-radius: 9px; cursor: pointer; background: #fff; font-size: 13.5px; }
.ls-spec.on { border-color: var(--ls-primary); color: var(--ls-primary); background: #f5f6ff; }
.ls-qty { display: inline-flex; align-items: center; border: 1px solid var(--ls-border); border-radius: 9px; overflow: hidden; }
.ls-qty button { width: 34px; height: 34px; border: 0; background: #f8fafc; cursor: pointer; font-size: 16px; }
.ls-qty input { width: 58px; height: 34px; border: 0; border-left: 1px solid var(--ls-border); border-right: 1px solid var(--ls-border); text-align: center; outline: none; }
.ls-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 42px; padding: 0 26px; border-radius: 10px; border: 0; cursor: pointer; font-size: 15px; background: #f3f4f6; color: var(--ls-text); }
.ls-btn.primary { background: var(--ls-primary); color: #fff; }
.ls-btn.primary:hover { background: var(--ls-primary-dark); color: #fff; }
.ls-btn.warn { background: var(--ls-price); color: #fff; }
.ls-btn.warn:hover { background: #e04800; color: #fff; }
.ls-btn.ghost { background: #fff; border: 1px solid var(--ls-border); }
.ls-btn.sm { height: 30px; padding: 0 14px; font-size: 13px; border-radius: 7px; }
.ls-btn[disabled] { opacity: .55; cursor: not-allowed; }
.ls-actions { display: flex; gap: 12px; margin-top: 18px; }
.ls-stock { font-size: 13px; color: var(--ls-text-light); margin-top: 12px; }
.ls-addon-notice { margin-top: 16px; padding: 10px 14px; border-radius: 10px; background: #eef2ff; color: #3730a3; font-size: 13px; }
.ls-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--ls-border); margin-bottom: 16px; }
.ls-tabs a, .ls-tabs button { padding: 10px 18px; border: 0; background: none; cursor: pointer; font-size: 15px; color: var(--ls-text-light); border-bottom: 2px solid transparent; }
.ls-tabs .on { color: var(--ls-primary); border-bottom-color: var(--ls-primary); font-weight: 600; }
.ls-desc { font-size: 14.5px; line-height: 1.9; color: #374151; }
.ls-desc img { margin: 10px 0; border-radius: 8px; }
.ls-comment-item { padding: 14px 0; border-bottom: 1px dashed var(--ls-border); }
.ls-comment-item .hd { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ls-text-light); }
.ls-comment-item .hd b { color: var(--ls-text); }
.ls-stars { color: #f59e0b; letter-spacing: 2px; }
.ls-article-text { white-space: pre-wrap; }

/* 购物车 / 结算 */
.ls-table { background: #fff; border-radius: var(--ls-radius); box-shadow: var(--ls-shadow); overflow: hidden; }
.ls-table table { width: 100%; }
.ls-table th { background: #f8fafc; color: var(--ls-text-light); font-weight: 600; font-size: 13px; text-align: left; }
.ls-table th, .ls-table td { padding: 14px 16px; border-bottom: 1px solid var(--ls-border); vertical-align: middle; }
.ls-table tr:last-child td { border-bottom: 0; }
.ls-table .goods-cell { display: flex; gap: 12px; align-items: center; }
.ls-table .goods-cell img { width: 74px; height: 74px; border-radius: 9px; object-fit: cover; flex: 0 0 74px; background: #f1f5f9; }
.ls-table .goods-cell .name { font-size: 14px; line-height: 1.4; }
.ls-table .goods-cell .spec { font-size: 12.5px; color: var(--ls-text-light); }
.ls-table .del { color: var(--ls-text-light); cursor: pointer; font-size: 13px; }
.ls-table .del:hover { color: var(--ls-danger); }
.ls-invalid { color: #b6bcc7; }
.ls-price-num { color: var(--ls-price); font-weight: 600; }
.ls-bar { position: sticky; bottom: 0; background: #fff; border-radius: var(--ls-radius); box-shadow: 0 -6px 22px rgba(15, 23, 42, .08); padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 16px; }
.ls-bar .sum { display: flex; align-items: baseline; gap: 18px; }
.ls-bar .sum .total { font-size: 22px; color: var(--ls-price); font-weight: 700; }
.ls-bar .sum .freight { font-size: 12.5px; color: var(--ls-text-light); }

/* 订单 */
.ls-order-card { background: #fff; border-radius: var(--ls-radius); box-shadow: var(--ls-shadow); margin-bottom: 14px; overflow: hidden; }
.ls-order-hd { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; padding: 11px 18px; background: #f8fafc; font-size: 13px; color: var(--ls-text-light); border-bottom: 1px solid var(--ls-border); }
.ls-order-hd .no { color: var(--ls-text); font-weight: 600; }
.ls-order-hd .st { margin-left: auto; color: var(--ls-primary); font-weight: 600; }
.ls-order-bd { padding: 6px 18px; }
.ls-order-ft { padding: 12px 18px; display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; border-top: 1px solid var(--ls-border); }
.ls-order-ft .ops { display: flex; gap: 9px; margin-left: auto; }
.ls-steps { display: flex; gap: 0; margin: 0 0 18px; background: #fff; border-radius: var(--ls-radius); box-shadow: var(--ls-shadow); padding: 18px 22px; }
.ls-steps div { flex: 1; text-align: center; position: relative; font-size: 13.5px; color: var(--ls-text-light); }
.ls-steps div i { display: block; width: 26px; height: 26px; line-height: 26px; margin: 0 auto 6px; border-radius: 50%; background: #eef1f6; color: #94a3b8; font-style: normal; font-weight: 600; }
.ls-steps div.on { color: var(--ls-primary); }
.ls-steps div.on i { background: var(--ls-primary); color: #fff; }
.ls-steps div::after { content: ""; position: absolute; top: 13px; left: 50%; width: 100%; height: 1px; background: var(--ls-border); z-index: -1; }
.ls-steps div:last-child::after { display: none; }
.ls-pay-methods { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; }
.ls-pay-methods label { display: flex; align-items: center; gap: 10px; padding: 16px; border: 1px solid var(--ls-border); border-radius: 10px; cursor: pointer; background: #fff; }
.ls-pay-methods label.on { border-color: var(--ls-primary); background: #f5f6ff; }
.ls-pay-methods .ico { width: 30px; height: 30px; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 15px; }

/* 会员 */
.ls-auth { max-width: 400px; margin: 46px auto; background: #fff; border-radius: 16px; box-shadow: var(--ls-shadow); padding: 30px 32px 34px; }
.ls-auth h1 { font-size: 21px; margin-bottom: 4px; }
.ls-auth .sub { color: var(--ls-text-light); font-size: 13px; margin-bottom: 20px; }
.ls-form .item { margin-bottom: 16px; }
.ls-form label { display: block; font-size: 13px; color: var(--ls-text-light); margin-bottom: 6px; }
.ls-form input[type=text], .ls-form input[type=password], .ls-form input[type=number], .ls-form input[type=email], .ls-form textarea, .ls-form select {
    width: 100%; height: 42px; padding: 0 13px; border: 1px solid #dfe3ea; border-radius: 10px; outline: none; background: #fff;
}
.ls-form textarea { height: auto; padding: 11px 13px; resize: vertical; line-height: 1.7; }
.ls-form input:focus, .ls-form textarea:focus, .ls-form select:focus { border-color: var(--ls-primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, .1); }
.ls-form .check { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--ls-text); }
.ls-form .err { background: #fef2f2; border: 1px solid #fecaca; color: #b91c1c; padding: 10px 13px; border-radius: 9px; font-size: 13px; margin-bottom: 16px; }
.ls-form .full { width: 100%; justify-content: center; }
.ls-user-side { background: #fff; border-radius: var(--ls-radius); box-shadow: var(--ls-shadow); padding: 20px; width: 200px; flex: 0 0 200px; }
.ls-user-side .ava { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.ls-user-side .ava img { width: 46px; height: 46px; border-radius: 50%; object-fit: cover; }
.ls-user-side a { display: block; padding: 9px 12px; border-radius: 9px; font-size: 14px; }
.ls-user-side a.on, .ls-user-side a:hover { background: #eef2ff; color: var(--ls-primary); }
.ls-user-main { flex: 1; min-width: 0; }
.ls-stat { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.ls-stat a { background: #fff; border-radius: var(--ls-radius); box-shadow: var(--ls-shadow); padding: 16px; text-align: center; }
.ls-stat a b { display: block; font-size: 22px; color: var(--ls-primary); }
.ls-stat a span { font-size: 12.5px; color: var(--ls-text-light); }
.ls-addr-item { border: 1px solid var(--ls-border); border-radius: 12px; padding: 16px 18px; margin-bottom: 12px; background: #fff; display: flex; align-items: center; gap: 14px; }
.ls-addr-item.on { border-color: var(--ls-primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, .1); }
.ls-addr-item .tag { display: inline-block; font-size: 11.5px; padding: 1px 8px; border-radius: 999px; background: #eef2ff; color: var(--ls-primary); margin-left: 6px; }
.ls-addr-item .ops { margin-left: auto; display: flex; gap: 12px; font-size: 13px; color: var(--ls-text-light); }

/* 分页 */
.ls-pager { display: flex; justify-content: center; align-items: center; gap: 6px; margin: 22px 0 4px; flex-wrap: wrap; }
.ls-pager a, .ls-pager span { min-width: 34px; height: 34px; line-height: 32px; text-align: center; border: 1px solid var(--ls-border); border-radius: 8px; background: #fff; padding: 0 10px; font-size: 13.5px; }
.ls-pager .on { background: var(--ls-primary); border-color: var(--ls-primary); color: #fff; }
.ls-pager .dis { color: #cbd5e1; }

/* 空状态 */
.ls-empty { background: #fff; border-radius: var(--ls-radius); box-shadow: var(--ls-shadow); text-align: center; padding: 54px 20px; color: var(--ls-text-light); }
.ls-empty b { display: block; font-size: 34px; margin-bottom: 8px; color: #d7dbe4; }

/* 页脚 */
.ls-footer { background: #1f2430; color: #94a3b8; margin-top: 40px; }
.ls-footer a { color: #cbd5e1; }
.ls-footer .top { display: flex; flex-wrap: wrap; gap: 26px; justify-content: space-between; padding: 26px 0; border-bottom: 1px solid #2b3242; font-size: 13px; }
.ls-footer .links { display: flex; gap: 22px; flex-wrap: wrap; }
.ls-footer .bottom { padding: 18px 0 26px; font-size: 12.5px; line-height: 1.9; }
.ls-footer .bottom b { color: #e2e8f0; font-weight: 500; }

/* 提示条 */
.ls-notice { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; border-radius: 10px; padding: 10px 14px; font-size: 13px; margin-bottom: 14px; }
.ls-notice.error { background: #fef2f2; border-color: #fecaca; color: #b91c1c; }
.ls-notice.ok { background: #ecfdf5; border-color: #a7f3d0; color: #047857; }

/* 表单行 */
.ls-form-inline { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.ls-help { font-size: 12.5px; color: var(--ls-text-light); }

/* 移动端 */
@media (max-width: 900px) {
    .ls-home { grid-template-columns: 1fr; }
    .ls-side-cat { order: 2; }
    .ls-detail-main { grid-template-columns: 1fr; }
    .ls-service { grid-template-columns: repeat(2, 1fr); }
    .ls-header .ls-wrap { flex-wrap: wrap; gap: 12px; }
    .ls-search { order: 3; max-width: none; flex-basis: 100%; }
    .ls-stat { grid-template-columns: repeat(3, 1fr); }
    .ls-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
    .ls-table th.hide-sm, .ls-table td.hide-sm { display: none; }
    .ls-user-side { width: 100%; flex-basis: 100%; }
}
@media (max-width: 560px) {
    .ls-topbar .ls-wrap { display: none; }
    .ls-nav > .ls-wrap { overflow-x: auto; }
    .ls-steps { flex-wrap: wrap; }
    .ls-bar { flex-direction: column; align-items: stretch; }
}

/* 轻提示（lingshi.js 使用，前台后台共用） */
.ls-toast {
    position: fixed; left: 50%; top: 18%; transform: translateX(-50%) translateY(-10px);
    z-index: 1000; max-width: 80vw; padding: 12px 22px; border-radius: 10px;
    background: #1f2430; color: #fff; font-size: 14px; line-height: 1.6;
    box-shadow: 0 12px 30px rgba(15, 23, 42, .25); opacity: 0;
    transition: opacity .18s, transform .18s;
}
.ls-toast-show { opacity: 1; transform: translateX(-50%) translateY(0); }
.ls-toast-ok { background: #047857; }
.ls-toast-error { background: #b91c1c; }
.ls-toast-info { background: #1f2430; }
.ls-toast-out { opacity: 0; transform: translateX(-50%) translateY(-10px); }



/* ============================================================
   v2 购物平台风格（橙色主题 + 移动端底部导航）
   ============================================================ */
:root { --ls-primary-soft: #fff3ec; --ls-radius: 10px; --ls-shadow: 0 1px 6px rgba(0,0,0,.05); }
a:hover { color: var(--ls-primary); }
.ls-topbar { background: #f5f5f5; color: #666; border-bottom: 1px solid #ececec; }
.ls-topbar a { color: #666; } .ls-topbar a:hover { color: var(--ls-primary); } .ls-topbar .sep { color: #ccc; }
.ls-logo i { background: linear-gradient(135deg, #ff7a00, #ff2e4d); border-radius: 12px; width: 40px; height: 40px; font-size: 20px; }
.ls-logo b { color: #ff5000; }
.ls-search input { border-color: var(--ls-primary); border-radius: 22px 0 0 22px; padding-left: 18px; }
.ls-search button { background: linear-gradient(90deg, #ff7a00, #ff5000); border-radius: 0 22px 22px 0; font-size: 15px; }
.ls-header-cart { background: var(--ls-primary-soft); color: var(--ls-primary); border-radius: 22px; }
.ls-header-cart:hover { background: #ffe6d9; }
.ls-nav a:hover, .ls-nav a.on { background: none; color: var(--ls-primary); font-weight: 600; }
.ls-title h2 { font-size: 18px; } .ls-title h2 em { color: #ff2e4d; }
.ls-side-cat .hd { background: linear-gradient(90deg, #ff7a00, #ff5000); }
.ls-side-cat .item:hover { background: var(--ls-primary-soft); }
/* 商品卡片 */
.ls-grid { gap: 12px; }
.ls-goods { border-radius: 10px; box-shadow: none; border: 1px solid #f0f0f0; }
.ls-goods:hover { transform: none; box-shadow: 0 6px 18px rgba(0,0,0,.08); border-color: #ffd6c2; }
.ls-goods .pic { background: #fff; }
.ls-goods .pic img { object-fit: contain; padding: 6px; }
.ls-goods .flag { left: 0; top: 0; border-radius: 0 0 10px 0; background: linear-gradient(90deg, #ff2e4d, #ff5000); padding: 2px 9px; }
.ls-goods .info { padding: 8px 10px 12px; gap: 4px; }
.ls-goods .name { font-size: 14px; color: #222; }
.ls-goods .sub { color: #ff5000; font-size: 12px; }
.ls-goods .price b { color: #ff2e4d; font-size: 19px; font-weight: 700; }
.ls-goods .price b::first-letter { font-size: 13px; }
.ls-goods .meta { color: #999; }
/* 轮播 */
.ls-banner { box-shadow: none; }
.ls-banner a { display: flex; align-items: center; justify-content: space-between; aspect-ratio: 24/9; padding: 0 6% 0 7%; overflow: hidden; }
.ls-banner .slide.bg0 a { background: linear-gradient(120deg, #ff9a3d, #ff3d3d); }
.ls-banner .slide.bg1 a { background: linear-gradient(120deg, #6a7cff, #b05cff); }
.ls-banner .slide.bg2 a { background: linear-gradient(120deg, #19c39a, #12a0d8); }
.ls-banner .slide.bg3 a { background: linear-gradient(120deg, #ffb703, #fb5607); }
.ls-banner .slide.bg4 a { background: linear-gradient(120deg, #ff5e8a, #ff8f5e); }
.ls-banner .txt { position: static; color: #fff; max-width: 55%; text-shadow: none; }
.ls-banner .txt .tag { display: inline-block; font-size: 12px; background: rgba(255,255,255,.25); padding: 2px 10px; border-radius: 99px; margin-bottom: 10px; }
.ls-banner .txt h3 { font-size: 30px; line-height: 1.25; margin-bottom: 8px; }
.ls-banner .txt .sub { font-size: 15px; opacity: .92; margin-bottom: 16px; }
.ls-banner .txt .go { display: inline-block; background: #fff; color: #ff3d3d; font-weight: 600; padding: 7px 20px; border-radius: 99px; font-size: 14px; }
.ls-banner img { width: 38%; height: 86%; object-fit: contain; background: #fff; border-radius: 14px; padding: 10px; box-shadow: 0 10px 30px rgba(0,0,0,.15); }
/* 快捷入口：仅手机显示 */
.ls-quick { display: none; }
.ls-service div b { color: #ff5000; }
.ls-price-box { background: linear-gradient(90deg, #ff5000, #ff2e4d); color: #fff; }
.ls-price-box .now { color: #fff; } .ls-price-box .old, .ls-price-box .tips { color: rgba(255,255,255,.85); }
.ls-spec.on { background: var(--ls-primary-soft); }
.ls-btn.primary { background: linear-gradient(90deg, #ffb000, #ff8a00); }
.ls-btn.warn { background: linear-gradient(90deg, #ff5000, #ff2e4d); }
.ls-pay-methods label.on, .ls-addr-item.on { background: var(--ls-primary-soft); }
.ls-user-side a.on, .ls-user-side a:hover, .ls-addr-item .tag { background: var(--ls-primary-soft); }
.ls-stat a b { color: #ff5000; }
.ls-form input:focus, .ls-form textarea:focus, .ls-form select:focus { box-shadow: 0 0 0 3px rgba(255,80,0,.12); }
.ls-footer { background: #fff; color: #888; border-top: 1px solid #eee; }
.ls-footer a { color: #555; } .ls-footer .top { border-bottom-color: #f0f0f0; } .ls-footer .bottom b { color: #333; }
.ls-tabbar { display: none; }

@media (max-width: 768px) {
    body { padding-bottom: calc(56px + env(safe-area-inset-bottom)); font-size: 13px; }
    .ls-topbar { display: none; }
    .ls-header { position: sticky; top: 0; z-index: 50; background: linear-gradient(90deg, #ff7a00, #ff5000); }
    .ls-header .ls-wrap { flex-wrap: nowrap; gap: 10px; padding: 9px 12px; }
    .ls-logo span { display: none; }
    .ls-logo i { width: 34px; height: 34px; font-size: 17px; background: rgba(255,255,255,.22); }
    .ls-search { order: 0; flex: 1 1 auto; max-width: none; flex-basis: auto; }
    .ls-search input { height: 36px; border: 0; font-size: 13px; }
    .ls-search button { width: 58px; height: 36px; background: #fff; color: #ff5000; font-weight: 600; border-left: 1px solid #ffe0d0; }
    .ls-header-cart { display: none; }
    .ls-nav { position: sticky; top: 54px; z-index: 40; box-shadow: none; border-bottom: 1px solid #f0f0f0; }
    .ls-nav > .ls-wrap { overflow-x: auto; flex-wrap: nowrap; scrollbar-width: none; min-height: 40px; gap: 0; }
    .ls-nav > .ls-wrap::-webkit-scrollbar { display: none; }
    .ls-nav a { white-space: nowrap; padding: 6px 11px; font-size: 14px; }
    .ls-main { margin: 10px auto 16px; }
    .ls-wrap { padding: 0 10px; }
    .ls-home { display: block; }
    .ls-side-cat { display: none; }
    .ls-banner a { aspect-ratio: 2/1; padding: 0 5%; }
    .ls-banner .txt { max-width: 58%; }
    .ls-banner .txt h3 { font-size: 18px; }
    .ls-banner .txt .sub { font-size: 12px; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .ls-banner .txt .go { padding: 4px 12px; font-size: 12px; }
    .ls-banner .txt .tag { margin-bottom: 6px; font-size: 11px; }
    .ls-banner img { width: 38%; height: 76%; border-radius: 10px; padding: 4px; }
    .ls-banner .dots { right: 50%; transform: translateX(50%); bottom: 8px; }
    .ls-quick { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px 4px; background: #fff; border-radius: 12px; padding: 14px 6px; margin-top: 10px; }
    .ls-quick a { display: flex; flex-direction: column; align-items: center; gap: 5px; font-size: 12px; color: #333; }
    .ls-quick i { width: 42px; height: 42px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-style: normal; color: #fff; font-size: 17px; font-weight: 700; }
    .ls-quick .q0 { background: linear-gradient(135deg, #4facfe, #2b7bff); } .ls-quick .q1 { background: linear-gradient(135deg, #43e97b, #18b96b); }
    .ls-quick .q2 { background: linear-gradient(135deg, #ff9a9e, #ff5e7e); } .ls-quick .q3 { background: linear-gradient(135deg, #f6d365, #fda085); }
    .ls-quick .q4 { background: linear-gradient(135deg, #a18cd1, #8e6bff); } .ls-quick .q5 { background: linear-gradient(135deg, #30cfd0, #2a8bd8); }
    .ls-quick .q6 { background: linear-gradient(135deg, #ffb347, #ff7a00); } .ls-quick .q7 { background: linear-gradient(135deg, #ff6a88, #ff2e4d); }
    .ls-quick .q8 { background: linear-gradient(135deg, #ff5000, #ff2e4d); } .ls-quick .q9 { background: linear-gradient(135deg, #00c6a7, #1e9e6a); }
    .ls-service { display: none !important; }
    .ls-title { margin-bottom: 8px; } .ls-title h2 { font-size: 16px; }
    .ls-main > .ls-title { margin-top: 16px !important; }
    .ls-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .ls-goods { border: 0; }
    .ls-goods .name { font-size: 13.5px; }
    .ls-goods .meta span + span { display: none; }
    .ls-row { flex-direction: column; gap: 0; }
    .ls-detail-main { padding: 0; gap: 0; border-radius: 0; margin: -10px -10px 0; }
    .ls-detail-main > *:not(.ls-gallery) { padding: 14px; }
    .ls-gallery .big { border-radius: 0; }
    .ls-gallery .thumbs { padding: 0 12px; }
    .ls-buy-title h1 { font-size: 17px; }
    .ls-price-box { border-radius: 10px; }
    .ls-actions { position: fixed; left: 0; right: 0; bottom: calc(56px + env(safe-area-inset-bottom)); z-index: 60; margin: 0; padding: 8px 12px; background: #fff; box-shadow: 0 -2px 10px rgba(0,0,0,.06); }
    .ls-actions .ls-btn { flex: 1; border-radius: 22px; height: 42px; padding: 0 10px; }
    .ls-footer { display: none; }
    .ls-auth { margin: 20px auto; padding: 24px 20px; }
    .ls-tabbar { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 70; background: #fff; border-top: 1px solid #eee; padding-bottom: env(safe-area-inset-bottom); }
    .ls-tabbar a { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; height: 56px; font-size: 11px; color: #666; position: relative; gap: 2px; }
    .ls-tabbar a.on { color: #ff5000; }
    .ls-tabbar svg { width: 23px; height: 23px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linejoin: round; stroke-linecap: round; }
    .ls-tabbar a.on svg path:first-child { fill: currentColor; fill-opacity: .15; }
    .ls-tabbar .ls-badge { top: 4px; right: calc(50% - 22px); }
    .ls-bar { bottom: calc(56px + env(safe-area-inset-bottom)); border-radius: 0; margin: 12px -10px 0; }
}