/* 全局字体设置 */
        body {
            font-family: 'Alibaba PuHuiTi', Arial, sans-serif;
        }

        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(0, 30, 60, 0.9);
            z-index: 1000;
        }

        .header-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 14rem;
            width: 100%;
            height: 0.8rem;
            margin: 0 auto;
            padding: 0 0.2rem;
            box-sizing: border-box;
        }

        .logo {
            display: flex;
            align-items: center;
            color: white;
            font-size: 0.18rem;
            font-weight: bold;
        }

        .logo img {
            margin-right: 0.12rem;
        }

        .logo span {
            font-size: 0.18rem;
            /* font-weight: 500; */
            line-height: normal;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li {
            margin: 0 0.25rem;
        }

        .nav-menu a {
            color: white;
            text-decoration: none;
            font-size: 0.2rem;
            /* font-weight: 600; */
            line-height: normal;
            letter-spacing: 0em;
            transition: color 0.3s;
        }

        .nav-menu a:hover {
            color: #ff6600;
        }

        .header-right {
            display: flex;
            align-items: center;
        }

        .tel {
            color: white;
            margin-right: 0.18rem;
            font-size: 0.22rem;
            font-weight: bold;
            line-height: normal;
            letter-spacing: 0em;
            display: flex;
            align-items: center;
        }

        .tel img {
            margin-right: 0.085rem;
            width: 0.19rem;
            height: 0.19rem;
            vertical-align: middle;
        }

        .btn {
            background-color: #ff3300;
            color: white;
            padding: 0.08rem 0.2rem;
            border: none;
            border-radius: 0.04rem;
            font-size: 0.16rem;
            font-weight: 500;
            line-height: normal;
            letter-spacing: 0em;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: 
                transform 0.3s ease,
                box-shadow 0.3s ease,
                background-color 0.3s ease,
                color 0.3s ease,
                filter 0.3s ease;
            display: flex;
            align-items: center;
        }

        .btn::after {
            content: "";
            position: absolute;
            top: 0;
            left: -42%;
            width: 36%;
            height: 100%;
            background: linear-gradient(
                90deg,
                rgba(255, 255, 255, 0) 0%,
                rgba(255, 255, 255, 0.3) 50%,
                rgba(255, 255, 255, 0) 100%
            );
            transform: skewX(-20deg);
            transition: left 0.42s ease;
        }

        .btn img {
            margin-right: 0.1rem;
            width: 0.13rem;
            height: 0.13rem;
            vertical-align: middle;
        }

        .btn:hover {
            background-color: #ff6600;
            transform: translateY(-0.04rem) scale(1.02);
            box-shadow:
                0 0.16rem 0.32rem rgba(255, 51, 0, 0.28),
                inset 0 1px 0 rgba(255, 255, 255, 0.35);
            filter: brightness(1.04);
        }

        .btn:hover::after {
            left: 118%;
        }

        .btn:active {
            transform: translateY(-1px) scale(0.99);
        }

        .container {
            margin-top: 0.8rem;
            /* 为固定头部留出空间 */
        }