/* 人像摄影页面样式 */
body.portrait-page {
    /* Apply the desired gradient directly to the body */
    background: linear-gradient(to bottom, #efefef, #555555) !important; 
    color: #ffffff; /* Keep text color */
    min-height: 100vh; /* Ensure body covers full viewport height */
}

.portrait-page {
    /* Ensure the wrapper div has no background of its own */
    background: none !important;
    color: #ffffff;
}

/* --- Unified Navigation Styles --- */
.nav-toggle {
    position: fixed !important;
    top: 20px !important;
    right: 20px !important;
    z-index: 1001 !important;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    padding: 10px 5px;
    background-color: transparent;
    appearance: none;
    -webkit-appearance: none;
    border: none;
    background: none;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: grey; /* Set icon color to grey */
    transition: all 0.3s;
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateY(-100%); /* Ensure initial transform */
    visibility: hidden;
    /* Specify transitions for visibility delay */
    transition: transform 0.4s cubic-bezier(0.645, 0.045, 0.355, 1), visibility 0s linear 0.4s;
    /* REMOVING performance optimizations for testing */
    /* transform: translateZ(0); */
    /* -webkit-transform: translateZ(0); */
    /* backface-visibility: hidden; */
    /* -webkit-backface-visibility: hidden; */
}

.nav-menu.active {
    transform: translateY(0); /* Ensure active transform */
    visibility: visible;
    /* Ensure visibility transition is immediate when opening */
    transition: transform 0.4s cubic-bezier(0.645, 0.045, 0.355, 1), visibility 0s linear 0s;
}

.nav-menu a {
    color: white;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.4rem;
    font-weight: 400 !important;
    text-decoration: none;
    padding: 15px 30px;
    margin: 5px 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    transition: transform 0.3s ease;
}

.nav-menu a:first-child {
    font-size: 1.4rem !important;
    margin-top: -30px;
    font-weight: 500 !important;
}

.nav-menu a:hover {
    transform: translateY(-3px);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 10px;
    left: 30px;
    background-color: white;
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: calc(100% - 60px);
}
/* --- End Unified Navigation Styles --- */

/* 标题背景区域 (来自 automotive.css) */
.title-background {
    width: 100%;
    height: 35vh;
    background: transparent;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding-left: 100px;
    margin-top: 0;
}

/* 标题文本样式 (来自 automotive.css, 修改选择器) */
.portrait-page .title-text {
    font-family: 'Montserrat', sans-serif;
    font-size: 3em;
    font-weight: 700;
    text-transform: uppercase;
    line-height: 1.1;
    letter-spacing: 4px;
    margin: 0;
    position: relative;
    background: linear-gradient(
        90deg,
        #444444 0%,
        #444444 20%,
        #999999 30%,
        #ffffff 40%,
        #999999 50%,
        #444444 60%,
        #444444 100%
    );
    background-size: 400% auto;
    color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
    animation: wave 12s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    text-shadow: 0 0 1px rgba(255, 255, 255, 0.1);
}

/* 流光动画 (来自 automotive.css) */
@keyframes wave {
    0% {
        background-position: 0% center;
    }
    15% {
        background-position: 50% center;
    }
    35% {
        background-position: 150% center;
    }
    65% {
        background-position: 250% center;
    }
    85% {
        background-position: 350% center;
    }
    100% {
        background-position: 400% center;
    }
}

/* 修正汉堡菜单颜色 (来自 automotive.css, 修改选择器) */
.portrait-page .menu-toggle span {
    /* 人像页面菜单颜色可能不同，这里可以调整或移除 */
    /* background-color: #374151; */ 
    background-color: white; /* 假设人像页面用白色 */
}

/* 展示区域容器 (来自 automotive.css) */
.showcase-wrapper {
    width: 100%;
    padding-top: 0;
    margin-top: -50vh; /* 与 automotive 保持一致 */
    position: relative;
}

/* 展示区域 (来自 automotive.css) */
.showcase-section {
    width: 100%;
    margin: 0 0 200px 0; /* 与 automotive 保持一致 */
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 画廊容器 (来自 automotive.css) */
.car-gallery-container { /* 使用 automotive 的类名 */
    position: relative;
    background-color: #242424;
    padding: 0;
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.5),
        0 18px 35px rgba(0, 0, 0, 0.4),
        0 12px 20px rgba(0, 0, 0, 0.3);
    border-radius: 0;
    margin: 0;
    overflow: hidden;
}

/* 背景画布容器 (来自 automotive.css) */
.gallery-background {
    width: 100%;
    position: relative;
    padding-bottom: 120px;
    margin-bottom: 120px;
}

.gallery-background::after {
    content: '';
    position: absolute;
    height: 1px;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 
        0 0 20px 3px rgba(255, 255, 255, 0.7),
        0 0 15px 2px rgba(255, 255, 255, 0.5),
        0 0 10px 1px rgba(255, 255, 255, 0.3);
    filter: blur(0.2px);
    width: 1300px;
}

.gallery-background::before {
    content: '';
    position: absolute;
    height: 1px;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(to right, 
        transparent, 
        rgba(255,255,255,0.3),
        transparent
    );
    width: 900px;
}

/* 画廊基础样式 (来自 automotive.css) */
.showcase-container {
    position: relative;
    margin: 0 auto;
    width: 1200px;
    max-width: 1200px;
}

.car-gallery { /* 使用 automotive 的类名 */
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 0;
    padding: 0;
    margin: 0 auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
    cursor: grab;
}

.car-gallery::-webkit-scrollbar {
    display: none;
}

.car-gallery > img { /* 使用 automotive 的类名 */
    display: block;
    flex-shrink: 0;
    object-fit: cover;
    border-radius: 0;
}

/* 响应式布局 - 平板 (来自 automotive.css, 修改标题选择器) */
@media (min-width: 768px) and (max-width: 1199px) {
    .title-background {
        /* padding-left: 60px; */ /* 移除左内边距 */
        padding-left: 0; /* 确保无左内边距 */
        align-items: center !important; /* 强制居中 */
        margin-top: 0;
        height: 30vh;
    }
    
    /* 使用 .portrait-page 确保特异性 */
    .portrait-page .title-text {
        text-align: center !important; /* 强制文本居中 */
        width: 100%; /* 确保标题元素占满宽度 */
        font-size: 2.5em; /* 保持平板字体大小 */
        letter-spacing: 3px; /* 保持平板字母间距 */
        /* 移除 !important 如果基础样式没有冲突 */
        /* font-weight: 700; 继承基础样式 */
    }
    
    .showcase-wrapper {
        margin-top: -40vh;
    }

    .showcase-container {
        width: 600px;
        max-width: 600px;
    }
    
    .car-gallery {
        width: 600px;
    }
    
    .car-gallery > img {
        width: 300px;
        height: 375px;
        flex: 0 0 300px;
    }

    .gallery-background::after {
        width: 720px;
        bottom: 55px;
        background: rgba(255, 255, 255, 0.9);
        box-shadow: 
            0 0 20px 3px rgba(255, 255, 255, 0.7),
            0 0 15px 2px rgba(255, 255, 255, 0.5),
            0 0 10px 1px rgba(255, 255, 255, 0.3);
    }

    .gallery-background::before {
        width: 580px;
        bottom: 25px;
        background: linear-gradient(to right, 
            transparent, 
            rgba(255,255,255,0.3),
            transparent
        );
    }

    .gallery-background {
        padding-bottom: 100px;
        margin-bottom: 80px;
    }
}

/* 响应式布局 - 手机 (来自 automotive.css, 修改标题选择器) */
@media (max-width: 767px) {
    /* Mobile Navigation Styles */
    .nav-menu a {
        font-size: 1.2rem !important;
    }
    .nav-menu a:first-child {
        font-size: 1.2rem !important; /* 将1.8rem改为1.2rem，和其他移动端菜单项保持一致 */
    }
    .nav-toggle {
        width: 40px !important;
        height: 40px !important;
        top: 20px !important;
        right: 20px !important;
    }

    .portrait-page .title-background {
        padding-left: 0;
        align-items: center !important; /* 强制居中 */
        padding-top: 60px;
        margin-top: 20px;
        height: 25vh;
    }
    
    .portrait-page .title-text {
        text-align: center !important; /* 强制文本居中 */
        width: 100%; /* 确保标题元素占满宽度 */
        font-size: 1.8em !important;
        letter-spacing: 1.5px !important;
        font-weight: 600 !important;
    }
    
    .showcase-wrapper {
        margin-top: -20vh;
    }

    .showcase-container {
        width: 280px;
        max-width: 280px;
    }
    
    .car-gallery {
        width: 280px;
    }
    
    .car-gallery > img {
        width: 280px;
        height: 350px;
    }

    .gallery-background::after {
        width: 340px;
        bottom: 65px;
        background: rgba(255, 255, 255, 0.9);
        box-shadow: 
            0 0 20px 3px rgba(255, 255, 255, 0.7),
            0 0 15px 2px rgba(255, 255, 255, 0.5),
            0 0 10px 1px rgba(255, 255, 255, 0.3);
    }

    .gallery-background::before {
        width: 280px;
        bottom: 35px;
        background: linear-gradient(to right, 
            transparent, 
            rgba(255,255,255,0.3),
            transparent
        );
    }

    .gallery-background {
        padding-bottom: 80px;
        margin-bottom: 80px;
    }

    .showcase-section:last-child {
        margin-bottom: 60px;
    }
}

/* 响应式布局 - 小屏幕 (来自 automotive.css, 修改标题选择器) */
@media (max-width: 480px) {
    .gallery-background::after {
        width: 320px;
        bottom: 60px;
    }

    .gallery-background::before {
        width: 260px;
        bottom: 30px;
    }

    .gallery-background {
        padding-bottom: 70px;
        margin-bottom: 70px;
    }

    .portrait-page .title-text {
        /* 继承 767px 的 text-align 和 width */
        font-size: 1.6em !important;
        letter-spacing: 1.2px !important;
    }

    .portrait-page .title-background {
        padding-left: 0;
        align-items: center !important; /* 强制居中 */
        padding-top: 50px;
        margin-top: 15px;
    }
}

/* 桌面端画廊尺寸 (来自 automotive.css) */
@media (min-width: 1200px) {
    .car-gallery {
        width: 1200px;
    }
    
    .car-gallery > img {
        width: 400px;
        height: 500px;
    }
}

/* 最后一个画廊的底部间距调整 (来自 automotive.css) */
.showcase-section:last-child {
    margin-bottom: 100px;
}