.product-hero {
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        padding: 100px 0;
        position: relative;
    }

    .product-hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
    }

    .product-hero .container {
        position: relative;
        z-index: 1;
    }

    .product-hero h1 {
        margin-top: 150px;
        font-size: 3rem;
        font-weight: 700;
        color: #fff;
        width: 600px;
    }

    .product-hero p {
        font-size: 1.1rem;
        color: rgba(255, 255, 255, 0.9);
        max-width: 600px;
        margin-top: 20px;
        position: relative;
    }

    .breadcrumb {
        font-size: 14px;
        color: #fff;
        margin-bottom: 20px;
        margin-top: 20px;
        position: absolute;
        top: 110px;
    }

    .breadcrumb a {
        color: #fff;
        text-decoration: none;
    }

    .product-page {
        background-color: #fff;
    }

    .news-detail-layout {
        display: flex;
        padding: 60px 0;
        gap: 80px;
        align-items: flex-start;
    }

    .news-detail-left {
        flex: 1;
        background: #fff;
        padding: 40px 5px;
        box-sizing: border-box;
    }

    .title-bar {
        margin-bottom: 30px;
        border-bottom: 1px solid #c5c4c4;
        padding-bottom: 15px;
        box-sizing: border-box;
    }

    .news-title {
        font-size: 36px;
        color: #0066cc;
        margin-bottom: 10px;
        line-height: 1.4;
        font-weight: 600;
    }

    .title-bar p {
        font-size: 15px;
        color: #aaa;
    }

    .news-detail-right {
        width: 400px;
        flex-shrink: 0;
        margin-top: 45px;
        position: sticky;
        top: 120px;
        z-index: 10;
    }

    .hot-news {
        background: #fff;
        border-radius: 8px;
        padding: 20px;
        border: 1px solid #eee;
        position: relative;
        z-index: 10;
    }

    .hot-news h3 {
        font-size: 18px;
        margin-bottom: 20px;
        padding-bottom: 10px;
        border-bottom: 1px solid #eee;
    }

    .form-row-two {
        display: flex;
        gap: 24px;
    }

    .form-item {
        margin-bottom: 24px;
        position: relative;
        z-index: 20;
    }

    .form-row-two .form-item {
        flex: 1;
        margin-bottom: 24px;
    }

    .form-item input {
        width: 100%;
        border: none;
        border-bottom: 1px solid #ccc;
        background: transparent;
        padding: 12px 0;
        font-size: 16px;
        outline: none;
        transition: border-color 0.2s;
    }

    .form-item input:focus {
        border-color: #2478e6;
    }

    .form-item input::placeholder {
        color: #aaa;
    }

    .custom-select-origin {
        display: none;
    }

    .custom-select-trigger {
        width: 100%;
        border: none;
        border-bottom: 1px solid #ccc;
        background: transparent;
        padding: 12px 0;
        padding-right: 24px;
        font-size: 16px;
        outline: none;
        transition: border-color 0.2s;
        cursor: pointer;
        background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3e%3cpath fill='%23999' d='M10.293 0.293L6 4.586 1.707 0.293A1 1 0 000.293 1.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3e%3c/svg%3e");
        background-repeat: no-repeat;
        background-position: right 0 top 50%;
        background-size: 12px auto;
        box-sizing: border-box;
    }

    .custom-select-trigger.active {
        border-color: #2478e6;
    }

    .custom-select-trigger.placeholder-text {
        color: #aaa;
    }

    .custom-select-dropdown {
        position: absolute;
        left: 0;
        right: 0;
        top: 100%;
        margin-top: 8px;
        background: #ffffff;
        border-radius: 10px;
        box-shadow: 0 6px 20px rgba(36, 120, 230, 0.15);
        z-index: 9999;
        max-height: 260px;
        overflow-y: auto;
        display: none;
    }

    .custom-select-option {
        padding: 11px 14px;
        font-size: 15px;
        color: #333333;
        cursor: pointer;
        transition: background-color .18s ease;
    }

    .custom-select-option:hover {
        background-color: #eef4fd;
    }

    .custom-select-option.selected {
        background-color: #dce9fc;
        color: #2478e6;
        font-weight: 500;
    }

    .send-btn {
        width: 100%;
        padding: 18px 30px;
        background: #2478e6;
        border: none;
        font-size: 16px;
        color: #fff;
        cursor: pointer;
        transition: all 0.3s;
        border-radius: 10px;
        font-weight: 500;
    }

    .send-btn:hover {
        background: #68a4f1;
    }

    @media (max-width: 992px) {
        .news-detail-layout {
            flex-direction: column;
            gap: 40px;
            padding: 40px 16px;
        }

        .news-detail-right {
            width: 100%;
            position: static;
        }
    }

    @media (max-width: 768px) {
        .news-detail-left {
            padding: 24px 16px;
        }

        .news-title {
            font-size: 22px;
        }

        .form-row-two {
            flex-direction: column;
            gap: 0;
        }

        .product-hero h1 {
            font-size: 2rem;
            width: 100%;
        }

        .breadcrumb {
            position: relative !important;
            top: auto !important;
            margin-bottom: 12px;
        }

        .product-hero h1 {
            margin-top: 60px;
        }
    }