/* 全局重置与基础样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", sans-serif;
        }
        :root {
            --primary: #E7662E;    /* 主色-橙色 */
            --secondary: #1398FD;  /* 辅助色-蓝色 */
            --gray: #f5f5f5;       /* 浅灰背景 */
            --dark: #333;          /* 深色文字 */
            --light-gray: #999;    /* 浅灰文字 */
            --border: #eee;        /* 边框色 */
            --white: #fff;         /* 白色 */
            --card-gap: 25px;      /* 统一卡片间距变量 */
            --section-padding-x: 20px; /* 板块左右内边距变量 */
        }
        body {
            background-color: #f8f8f8;
            color: var(--dark);
            /* 给底部浮窗预留空间，避免页面内容被遮挡 */
            /* padding-bottom: 150px; */
        }
		body.float-closed {
		        padding-bottom: 0;
		    }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s;
        }
        .container {
            width: 1200px;
            margin: 0 auto;
        }
        button {
            border: none;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        select, input {
            font-family: inherit;
            outline: none;
            border: 1px solid var(--border);
            transition: border-color 0.3s;
        }
        select:focus, input:focus {
            border-color: var(--secondary);
        }

        /* 顶部导航 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: var(--white);
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            z-index: 999;
            height: 80px;
        }
        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            font-size: 24px;
            font-weight: bold;
            color: var(--primary);
        }
        .logo i {
            font-size: 30px;
            margin-right: 10px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .nav-list a {
            font-size: 16px;
            color: var(--dark);
        }
        .nav-list a:hover {
            color: var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .nav-btn {
            font-size: 16px;
            position: relative;
            cursor: pointer;
        }
        .qrcode-popup {
            position: absolute;
            top: 35px;
            right: 0;
            width: 120px;
            height: 120px;
            background: var(--white);
            padding: 10px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
            border-radius: 4px;
            display: none;
            z-index: 1000;
        }
        .nav-btn:hover .qrcode-popup {
            display: block;
        }
        .qrcode-popup img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 搜索区 */
        .search-section {
            margin-top: 80px;
            height: 400px;
            background: url("../img/top-beijing2@1.5x.jpg") center/cover no-repeat;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .search-box {
            width: 100%;
            max-width: 1200px;
            background: var(--white);
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 3px 20px rgba(0,0,0,0.1);
        }
        .search-filters {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 25px;
        }
        .filter-item label {
            display: block;
            font-size: 14px;
            color: var(--light-gray);
            margin-bottom: 8px;
        }
        .filter-select {
            width: 100%;
            padding: 10px 12px;
            border-radius: 4px;
            font-size: 16px;
        }
        .search-input {
            width: 100%;
            padding: 15px 20px;
            border-radius: 4px;
            font-size: 16px;
            margin-bottom: 20px;
        }
        .search-btn {
            width: 100%;
            padding: 15px;
            background: var(--primary);
            color: var(--white);
            border-radius: 4px;
            font-size: 18px;
            font-weight: bold;
        }
        .search-btn:hover {
            background: #d65a23;
        }

        /* 通用板块样式 - 核心修改：上下内边距改为20px */
        .section {
            padding: 20px var(--section-padding-x); /* 上下20px，左右与卡片间距匹配的内边距 */
            background: var(--white);
            margin-top: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border);
        }
        .section-title {
            font-size: 24px;
            font-weight: bold;
            color: var(--dark);
        }
        .more-link {
            color: var(--secondary);
            font-size: 16px;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .more-link:hover {
            color: #0f86e0;
        }

        /* 新增：广告图样式 */
        .ad-banner {
            width: 1200px;
            height: 120px;
            margin: 20px auto; /* 上下20px间距，水平居中 */
            border-radius: 8px;
            overflow: hidden;
			display: block;
        }
        .ad-banner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            cursor: pointer;
            transition: opacity 0.3s;
        }
        .ad-banner img:hover {
            opacity: 0.9;
        }

        /* 房源列表 - 使用统一间距变量 */
        .house-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap); /* 统一卡片间距 */
        }
        .house-card {
            border: 1px solid var(--border);
            border-radius: 8px;
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s;
            background: var(--white);
        }
        .house-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .house-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .house-info {
            padding: 15px;
        }
        .house-name {
            font-size: 18px;
            font-weight: bold;
            margin-bottom: 10px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .house-params {
            font-size: 14px;
            color: var(--light-gray);
            margin-bottom: 10px;
        }
        .house-price {
            font-size: 20px;
            font-weight: bold;
            color: var(--primary);
            margin-bottom: 10px;
        }
		.house-price span{font-size: 14px;font-weight: 400;}
        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .tag {
            font-size: 12px;
            padding: 3px 8px;
            border-radius: 12px;
        }
        .tag-blue {
            background: #e8f4ff;
            color: var(--secondary);
        }
        .tag-orange {
            background: #fee8e0;
            color: var(--primary);
        }

        /* 二手房板块（浅灰背景） */
        .second-hand-section {
            background: var(--gray);
			padding: 20px 0;
        }
        .second-hand-section .section {
            background: var(--white);
            max-width: 1200px;
            margin: 0px auto; /* 居中显示 */
        }

        /* 底部 */
        .footer {
            background: var(--dark);
            color: var(--white);
            padding: 50px 0 20px;
        }
        .footer-wrapper {
            display: flex;
            justify-content: space-between;
            margin-bottom: 30px;
            padding-bottom: 30px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .footer-qrcodes {
            display: flex;
            gap: 30px;
        }
        .footer-qrcode {
            width: 100px;
            height: 100px;
        }
		.footer-qrcode p{
			font-size: 12px;
			display: block;
			padding: 5px 0px 0px 0px;
			margin: 0px;
			text-align: center;
			color: #999;
		}
        .footer-qrcode img {
            width: 100%;
            height: 100%;
            border-radius: 8px;
        }
        .footer-contact {
            text-align: right;
        }
        .footer-contact h3 {
            font-size: 18px;
            margin-bottom: 15px;
        }
        .contact-info {
            font-size: 14px;
            margin-bottom: 10px;
            line-height: 1.6;
        }
        .copyright {
            text-align: center;
            font-size: 12px;
            color: var(--light-gray);
        }

        /* 底部可关闭浮窗样式 */
        .bottom-float {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 150px;
            background-color: var(--white);
            box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
            z-index: 998; /* 低于导航栏，高于页面内容 */
            padding: 20px;
            transition: all 0.3s ease;
        }
        .bottom-float.hide {
            transform: translateY(100%); /* 关闭时滑出屏幕 */
        }
        .float-close {
            position: absolute;
            top: 10px;
            right: 20px;
            font-size: 20px;
            color: var(--light-gray);
            cursor: pointer;
            transition: color 0.3s;
        }
        .float-close:hover {
            color: var(--primary);
        }
        .float-content {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100%;
            flex-direction: column;
            text-align: center;
        }
        .float-title {
            font-size: 18px;
            font-weight: bold;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .float-desc {
            font-size: 14px;
            color: var(--dark);
            margin-bottom: 15px;
        }
        .float-btn {
            padding: 8px 20px;
            background-color: var(--primary);
            color: var(--white);
            border-radius: 4px;
            font-size: 14px;
        }
        .float-btn:hover {
            background-color: #d65a23;
        }

        /* 响应式适配 - 同步调整间距 */
        @media (max-width: 1200px) {
            .container {
                width: 95%;
            }
            /* 响应式适配广告图 */
            .ad-banner {
                width: 95%;
                height: auto; /* 大屏缩小后自动适配高度 */
                min-height: 60px;
            }
            .house-list {
                grid-template-columns: repeat(3, 1fr);
                gap: calc(var(--card-gap) - 5px); /* 响应式缩小间距 */
            }
            .section {
                padding: 20px calc(var(--section-padding-x) - 5px); /* 同步缩小左右内边距，上下保持20px */
            }
        }
        @media (max-width: 992px) {
            .nav-list {
                display: none;
            }
            .search-filters {
                grid-template-columns: repeat(2, 1fr);
            }
            .house-list {
                grid-template-columns: repeat(2, 1fr);
                gap: calc(var(--card-gap) - 10px);
            }
            .section {
                padding: 20px calc(var(--section-padding-x) - 0px); /* 同步缩小左右内边距，上下保持20px */
            }
        }
        @media (max-width: 768px) {
            body {
                padding-bottom: 150px; /* 移动端保持预留空间 */
            }
            .header {
                height: 70px;
            }
            .search-section {
                height: 350px;
            }
            .search-box {
                padding: 20px;
            }
            /* 移动端广告图适配 */
            .ad-banner {
                width: 95%;
                height: auto;
                min-height: 50px;
            }
            .house-list {
                grid-template-columns: 1fr;
                gap: 20px; /* 移动端单独调整为20px */
            }
            .house-img {
                height: 220px;
            }
            .section {
                padding: 20px 15px; /* 移动端上下20px，左右15px */
            }
            .footer-wrapper {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .footer-contact {
                text-align: center;
                margin-top: 20px;
            }
            /* 移动端浮窗适配 */
            .bottom-float {
                height: 120px;
                padding: 15px;
            }
            .float-title {
                font-size: 16px;
            }
            .float-desc {
                font-size: 12px;
            }
        }