/* ===== 经典案例页面专用样式 ===== */

/* 顶部背景图区域 - 使用网络图片 */
.cases-banner {
    position: relative;
    height: 75vh;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}

/* 隐藏视频元素，只显示背景图 */
.cases-banner video {
    display: none;
}

/* 经典案例页面横幅内容 */
.cases-banner .banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 5;
    width: 100%;
}

.cases-banner .banner-title {
    font-size: 4em;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
}

.cases-banner .banner-subtitle {
    font-size: 1.8em;
    font-weight: 300;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    opacity: 0.9;
}

/* 经典案例页面导航栏初始样式 - 与首页相同，透明背景，白色按钮和logo */
.cases-banner .nav-bar {
    background-color: transparent;
    box-shadow: none;
}

.cases-banner .menu-button {
    color: white;
}

.cases-banner .logo-white {
    display: block;
}

.cases-banner .logo-black {
    display: none;
}

/* 经典案例页面导航栏滚动样式 - 与首页相同 */
.cases-banner .nav-bar.scrolled {
    position: fixed;
    background-color: white;
    align-items: center;
    opacity: 1;
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.cases-banner .nav-bar.scrolled .menu-button {
    color: black;
}

.cases-banner .nav-bar.scrolled .logo-white {
    display: none;
}

.cases-banner .nav-bar.scrolled .logo-black {
    display: block;
}

/* 经典案例内容容器 */
.cases-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px;
    background-color: white;
}

.cases-content {
    display: flex;
    flex-direction: column;
    gap: 100px;
}

/* 单个案例文章样式 */
.case-article {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 60px;
    margin-bottom: 0;
    padding-bottom: 100px;
    border-bottom: 1px solid #eee;
}

.case-article:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

/* 案例图片容器 */
.case-image-container {
    flex: 0 0 45%;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.case-image {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.case-image:hover {
    transform: scale(1.05);
}

/* 案例文字内容 */
.case-text {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-title {
    font-size: 2.5em;
    font-weight: bold;
    margin-bottom: 15px;
    color: #333;
    text-align: left;
}

.case-subtitle {
    font-size: 1.6em;
    font-weight: normal;
    margin-bottom: 25px;
    color: #666;
    line-height: 1.4;
    text-align: left;
}

.case-description {
    font-size: 1.2em;
    line-height: 1.8;
    color: #333;
    font-weight: 300;
    opacity: 0.9;
    text-align: justify;
    margin: 0;
}

/* 偶数案例反转布局 */
.case-article:nth-child(even) {
    flex-direction: row-reverse;
}

/* 去掉所有绿色线条和背景块 */
.case-article::before,
.case-title::before,
.case-title::after,
.case-subtitle::before,
.case-subtitle::after {
    display: none !important;
}

.case-article,
.case-title,
.case-subtitle {
    background-color: transparent !important;
    border: none !important;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .cases-container {
        padding: 60px 20px;
    }

    .cases-content {
        gap: 70px;
    }

    .case-article {
        gap: 40px;
        padding-bottom: 70px;
    }

    .case-title {
        font-size: 2em;
    }

    .case-subtitle {
        font-size: 1.4em;
    }

    .case-description {
        font-size: 1.1em;
    }
}

@media (max-width: 768px) {
    .cases-banner {
        height: 60vh;
    }

    .cases-banner .banner-title {
        font-size: 2.5em;
        margin-bottom: 15px;
    }

    .cases-banner .banner-subtitle {
        font-size: 1.2em;
    }

    .cases-container {
        padding: 50px 15px;
    }

    .cases-content {
        gap: 60px;
    }

    .case-article {
        flex-direction: column !important; /* 移动端统一垂直布局 */
        gap: 30px;
        padding-bottom: 60px;
    }

    .case-image-container {
        flex: 0 0 auto;
        width: 100%;
    }

    .case-title {
        font-size: 1.8em;
    }

    .case-subtitle {
        font-size: 1.3em;
    }

    .case-description {
        font-size: 1.1em;
    }
}

@media (max-width: 480px) {
    .cases-banner {
        height: 50vh;
    }

    .cases-banner .banner-title {
        font-size: 2em;
    }

    .cases-banner .banner-subtitle {
        font-size: 1em;
    }

    .cases-container {
        padding: 40px 10px;
    }

    .cases-content {
        gap: 50px;
    }

    .case-article {
        padding-bottom: 50px;
    }

    .case-title {
        font-size: 1.6em;
    }

    .case-subtitle {
        font-size: 1.2em;
    }

    .case-description {
        font-size: 1em;
    }
}