* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            background-color: #f0f2f5;
            color: #2c333a;
            line-height: 1.55;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 16px;
        }

        /* ========== 顶部头部栏 ========== */
        .site-header-top {
            background-color: #2c333a;
            color: #e4e7eb;
            padding:12px 0;
        }
        .header-top-inner {
            display:flex;
            justify-content: space-between;
            align-items:center;
        }
        .city-switch {
            display:flex;
            align-items:center;
            gap:6px;
            font-size:14px;
        }
        .header-top-right {
            display:flex;
            gap:24px;
            font-size:14px;
        }
        .header-top-right a:hover {
            color:#73a2d8;
        }

        /* ========== 搜索头部 ========== */
        .site-search-bar {
            background:#ffffff;
            padding:22px 0;
            border-bottom:1px solid #d8dce1;
        }
        .search-inner {
            display:flex;
            align-items:center;
            gap:24px;
        }
        .logo {
            font-size:26px;
            font-weight:700;
            color:#2c333a;
            min-width:140px;
        }
        .search-wrap {
            flex:1;
            display:flex;
        }
        .search-wrap input {
            flex:1;
            height:44px;
            padding:0 16px;
            border:1px solid #b8bec7;
            font-size:15px;
        }
        .search-wrap button {
            width:110px;
            height:44px;
            background:#37414e;
            color:#fff;
            border:none;
            cursor:pointer;
            font-size:15px;
        }
        .btn-publish {
            background:#2b548c;
            color:#fff;
            padding:12px 24px;
            font-size:15px;
            font-weight:500;
        }

        /* ========== 主导航 + 二级下拉菜单 ========== */
        .main-nav-wrap {
            background:#37414e;
        }
        .main-nav {
            display:flex;
        }
        .nav-item {
            position:relative;
        }
        .nav-item > a {
            display:block;
            color:#e4e7eb;
            padding:14px 22px;
            font-size:15px;
        }
        .nav-item > a:hover {
            background:#4a5666;
            color:#ffffff;
        }
        .nav-item.active > a {
            background:#546478;
            color:#ffffff;
        }
        .sub-nav {
            position:absolute;
            top:100%;
            left:0;
            background:#ffffff;
            min-width:180px;
            box-shadow:0 3px 12px rgba(0,0,0,0.12);
            z-index:99;
            display:none;
        }
        .sub-nav a {
            display:block;
            padding:11px 20px;
            font-size:14px;
            color:#2c333a;
        }
        .sub-nav a:hover {
            background:#e9edf2;
            color:#2b548c;
        }
        .nav-item:hover .sub-nav {
            display:block;
        }

        /* ========== 首页快捷标签区 ========== */
        .quick-tag-area {
            background:#ffffff;
            padding:18px 0;
            border-bottom:1px solid #dde1e7;
        }
        .quick-tag-list {
            display:flex;
            gap:14px;
        }
        .quick-tag-list a {
            padding:7px 16px;
            background:#edf1f6;
            font-size:14px;
        }
        .quick-tag-list a:hover {
            background:#d8e1ec;
        }

        /* ========== 通用区块标题 ========== */
        .block-title {
            font-size:20px;
            font-weight:600;
            margin:36px 0 20px;
            padding-left:8px;
            border-left:4px solid #2b548c;
        }

        /* ========== 1.腕戴设备：横向大图 + 右侧信息列表 ========== */
        .layout-wrist {
            display:grid;
            grid-template-columns: 1fr 1.1fr;
            gap:24px;
        }
        .layout-wrist .big-poster {
            background:#c9d1db;
            min-height:300px;
        }
        .layout-wrist-right-item {
            padding:14px 16px;
            background:#ffffff;
            border-bottom:1px solid #e4e7eb;
        }
        .layout-wrist-right-item:last-child {
            border-bottom:none;
        }
        .item-meta-row {
            display:flex;
            gap:16px;
            margin-top:8px;
            font-size:13px;
            color:#606b78;
        }
        .item-title {
            font-size:16px;
            font-weight:500;
        }
        .price-text {
            color:#c23838;
            font-weight:600;
        }

        /* ========== 2.耳戴设备：4列网格卡片 ========== */
        .layout-ear-grid {
            display:grid;
            grid-template-columns: repeat(4, 1fr);
            gap:18px;
        }
        .info-card {
            background:#ffffff;
            overflow:hidden;
        }
        .info-card .card-img {
            height:160px;
            background:#d3d9e1;
        }
        .info-card .card-body {
            padding:14px;
        }
        .info-card .card-title {
            font-size:15px;
            margin-bottom:8px;
        }
        .info-card .card-meta {
            font-size:13px;
            color:#606b78;
            display:flex;
            flex-wrap:wrap;
            gap:10px;
        }

        /* ==========3.眼镜与头戴：左侧大海报 + 右侧两列小卡片 ========== */
        .layout-glasses {
            display:grid;
            grid-template-columns: 1fr 1fr;
            gap:24px;
        }
        .glasses-left-poster {
            background:#c9d1db;
        }
        .glasses-right-wrap {
            display:grid;
            grid-template-columns:1fr 1fr;
            gap:14px;
        }
        .mini-card {
            background:#ffffff;
            padding:12px;
        }
        .mini-card .mini-img {
            height:100px;
            background:#d3d9e1;
            margin-bottom:8px;
        }
        .mini-card .mini-title {
            font-size:14px;
        }
        .mini-card .mini-meta {
            font-size:12px;
            color:#606b78;
            margin-top:6px;
        }

        /* ==========4.戒指与饰品：横向滚动卡片 ========== */
        .layout-ring-scroll-wrap {
            overflow-x:auto;
            padding-bottom:10px;
        }
        .layout-ring-scroll-row {
            display:flex;
            gap:16px;
            min-width:max-content;
        }
        .scroll-card {
            width:220px;
            background:#ffffff;
        }
        .scroll-card .scroll-img {
            height:140px;
            background:#d3d9e1;
        }
        .scroll-card .scroll-body {
            padding:12px;
        }

        /* ==========5.服饰鞋类：左右图文交替布局 ========== */
        .layout-clothes-item {
            display:grid;
            grid-template-columns: 260px 1fr;
            gap:20px;
            background:#ffffff;
            margin-bottom:16px;
        }
        .layout-clothes-item.reverse {
            grid-template-columns:1fr 260px;
        }
        .clothes-img {
            background:#c9d1db;
        }
        .clothes-body {
            padding:18px;
        }
        .clothes-body h4 {
            font-size:17px;
            margin-bottom:10px;
        }

        /* ========== 辅助区块：最新发布、附近、求购 ========== */
        .assist-area {
            display:grid;
            grid-template-columns: repeat(3,1fr);
            gap:22px;
            margin:40px 0;
        }
        .assist-block {
            background:#ffffff;
            padding:20px;
        }
        .assist-block h3 {
            font-size:17px;
            margin-bottom:16px;
            padding-bottom:8px;
            border-bottom:1px solid #e4e7eb;
        }
        .assist-list-item {
            padding:10px 0;
            border-bottom:1px solid #f0f2f5;
        }
        .assist-list-item:last-child {
            border-bottom:none;
        }
        .assist-item-title {
            font-size:14px;
        }
        .assist-item-meta {
            font-size:12px;
            color:#606b78;
            margin-top:4px;
        }

        /* ========== 页脚 ========== */
        footer {
            background:#2c333a;
            color:#b8bec7;
            padding:40px 0 26px;
            margin-top:60px;
        }
        .footer-grid {
            display:grid;
            grid-template-columns: repeat(4,1fr);
            gap:30px;
        }
        .footer-col h4 {
            color:#e4e7eb;
            margin-bottom:16px;
            font-size:16px;
        }
        .footer-col a {
            display:block;
            font-size:14px;
            margin-bottom:9px;
        }
        .footer-col a:hover {
            color:#73a2d8;
        }
        .copyright-text {
            text-align:center;
            margin-top:40px;
            padding-top:20px;
            border-top:1px solid #444c58;
            font-size:13px;
        }

        /* ========== 响应式适配 ========== */
        @media(max-width: 992px){
            .search-inner {
                flex-wrap:wrap;
            }
            .layout-wrist {
                grid-template-columns:1fr;
            }
            .layout-ear-grid {
                grid-template-columns: repeat(2,1fr);
            }
            .layout-glasses {
                grid-template-columns:1fr;
            }
            .glasses-right-wrap {
                grid-template-columns: repeat(2,1fr);
            }
            .layout-clothes-item, .layout-clothes-item.reverse {
                grid-template-columns:1fr;
            }
            .assist-area {
                grid-template-columns:1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2,1fr);
            }
            .main-nav {
                flex-wrap:wrap;
            }
        }

li{
        list-style: none;
}