.hero {

    height: 100vh;

    background: url('./images/BG38.jpg') center/cover no-repeat;

    display: flex;

    align-items: end;

    justify-content: start;

    position: relative;

    color: black;

    text-align: center;

    padding-bottom: 120px;

    padding-left: 120px;

}



.hero-text {

    z-index: 2;

}



.hero h1 {

    font-size: 3rem;

    margin-bottom: 1rem;

}



.hero button {

    margin-top: 2rem;

    padding: 0.8rem 2rem;

    font-weight: 600;

    background: rgba(255, 255, 255, 0.15);

    color: black;

    border: 1px solid black;

    border-radius: 40px;

    cursor: pointer;

    backdrop-filter: blur(4px);

    transition: all 0.3s ease;

}



.hero button:hover {

    background-color: rgba(255, 255, 255, 0.25);

    transform: translateY(-2px);

}



.head-font {

    text-align: left;

    margin: 0 auto;

    max-width: 1000px;

    margin-bottom: 3rem;

}

.head-font h1 {

    font-size: 2.5rem;

    margin: 1rem 0;

}



.highlight-text {

    max-width: 1000px;

    line-height: 1.8;

    margin: 0 auto;

}



.project-menu {

    display: flex;

    flex-wrap: wrap;

    justify-content: center;

    gap: 2rem;

    padding: 4rem 2rem;

    background: #f9f9f9;

}



.project-card {

    position: relative;

    width: 140px;

    height: 140px;

    border-radius: 50%;

    overflow: hidden;

    cursor: pointer;

    transition: transform 0.3s ease;

}



.project-item {

    display: flex;

    flex-direction: column;

    align-items: center;

}



.project-card img {

    width: 100%;

    height: 100%;

    object-fit: cover;

    transition: filter 0.3s;

}

/* 专门针对 proj7 图片布局的优化 */

/* #proj7 .detail-images {

    flex-direction: row;

    flex-wrap: wrap;

    justify-content: center;

    gap: 1rem;

}



#proj7 .detail-images img {

    width: 45%;

    height: auto;

    object-fit: cover;

}

.project-card:hover img {

    filter: grayscale(0%);

} */



.project-card .overlay {

    position: absolute;

    inset: 0;

    background: linear-gradient(135deg, #004080, #0066cc);

    display: flex;

    justify-content: center;

    align-items: center;

    opacity: 0;

    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);

    transition: transform 0.3s ease, box-shadow 0.3s ease;

}



.project-card:hover .overlay {

    opacity: 0.7;

}



.project-card:hover {

    transform: translateY(-4px);

    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.3);

}

.project-card.active {

    box-shadow: 0 0 15px 4px rgba(0, 102, 255, 0.6);

    transform: scale(1.05);

}

.project-title {

    text-align: center;

    margin-top: 0.8rem;

    font-size: 1.2rem;

    font-weight: 600;

    color: black;

}



.overlay button {

    padding: 0.4rem 1rem;

    background: #fff;

    color: #0077ff;

    border: none;

    border-radius: 20px;

    font-weight: 600;

}



.project-detail,

.project-detail-dg {

    padding: 4rem 2rem;

    background: #ffffff;

    max-width: 1200px;

    margin: 0 auto;

    transition: all 0.4s ease;

}



.back-btn {

    background: none;

    border: none;

    font-size: 1rem;

    color: #0077cc;

    margin-bottom: 2rem;

    cursor: pointer;

}



.detail-wrapper {

    display: flex;

    flex-wrap: wrap;

    gap: 2rem;

}



.detail-images {

    flex: 1 1 40%;

    display: flex;

    flex-direction: column;

    gap: 1rem;

}



.detail-images img {

    width: 80%;

    height: 50%;

    border-radius: 12px;

    object-fit: cover;

    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);

}



.detail-text {

    flex: 1 1 55%;

    font-size: 1rem;

    color: #333;

    line-height: 1.7;

    border-left: 4px solid #0077cc;

    animation: fadeIn 0.4s ease;

    border-radius: 12px;

    padding: 1rem 2rem;

}



.detail-text h2 {

    margin-top: 0;

    font-size: 2rem;

    color: #004080;

    white-space: nowrap;

}



@keyframes fadeIn {

    from {

        opacity: 0;

        transform: translateY(20px);

    }



    to {

        opacity: 1;

        transform: translateY(0);

    }

}



.get-in-touch-section {

    margin-top: 4rem;

    text-align: center;

    margin-bottom: 10px;

}



#get-in-touch,

.scrollToContact {

    display: inline-block;

    background: linear-gradient(135deg, #004080, #0066cc);

    color: white;

    text-decoration: none;

    border-radius: 30px;

    padding: 0.8rem 2rem;

    font-size: 1.2rem;

    font-weight: 600;

    cursor: pointer;

    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);

    transition: all 0.3s ease;

    user-select: none;

}



#get-in-touch:hover,

.scrollToContact:hover {

    transform: translateY(-2px);

    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);

}



#get-in-touch .arrow,

.scrollToContact .arrow {

    display: inline-block;

    margin-left: 0.4rem;

    transition: transform 0.3s ease;

}



#get-in-touch:hover .arrow,

.scrollToContact:hover .arrow {

    transform: translateX(5px);

}