/* Variables & Brand Colors */
:root {
    --primary-color: #f97106; /* Assuming a strong orange */
    --secondary-color: #242424; /* Dark grey/black for contrast */
    --accent-color: #ffce2f; /* Yellow/Gold accent */
    --text-dark: #333333;
    --text-light: #FFFFFF;
    --text-muted: #666666;
    --bg-light: #F5F5F5;
    --bg-dark: #1A1A1A;
    --font-main: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --transition: all 0.3s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--text-light);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1440px; /* 增加整体宽度 */
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--secondary-color);
    text-transform: uppercase;
    font-weight: 700;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
    box-shadow: 0 4px 6px rgba(249, 113, 6, 0.2); /* 增加符合品牌色的初始柔和阴影 */
}

.btn-primary:hover {
    background-color: #e56505; /* 微调为更平滑的变暗橙色，而不是跨度太大的暗红色 */
    transform: translateY(-3px); /* 加大上浮距离，增强悬停互动感 */
    box-shadow: 0 8px 15px rgba(249, 113, 6, 0.3); /* 悬停时增强品牌色阴影，营造发光感 */
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-light);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
    background-color: #000000;
    transform: translateY(-3px); /* 同样增加悬停浮动 */
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(249, 113, 6, 0.2);
}

.btn-large {
    padding: 12px 32px;
    font-size: 1.05rem;
}

/* Header & Navigation */
header {
    background-color: var(--secondary-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color 0.3s ease; /* 防止 header 本身发生高度跳变 */
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: height 0.3s ease; /* 导航栏高度过渡动画 */
    will-change: height; /* 提示浏览器优化性能 */
}

header.shrink .container {
    height: 60px; /* 下滑时导航栏缩小的高度 */
}

.logo {
    display: flex;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
}

.logo img {
    height: 50px;
    width: auto;
    display: block;
    transition: height 0.3s ease; /* Logo缩小过渡动画 */
}

header.shrink .logo img {
    height: 38px; /* 下滑时Logo缩小的高度 */
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.95rem;
    color: var(--text-light);
    padding: 10px 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--accent-color);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a.active::after {
    width: 100%;
    background-color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background-color: var(--text-light);
    transition: var(--transition);
}

/* Hero Slider */
.hero-slider {
    position: relative;
    height: 600px;
    overflow: hidden;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* 将背景图相关的样式移到专门的背景层 */
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    display: flex;
    align-items: center;
}

/* 专门用于承载背景图并实现细微位移动画的层 */
.slide-bg {
    position: absolute;
    top: 0;
    left: -4%; /* 回退一部分预留空间 */
    width: 108%; /* 回退一部分宽度 */
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -1;
    transform: translate3d(0, 0, 0); /* 使用 translate3d 开启硬件加速，解决卡顿问题 */
    transition: transform 10s linear; 
    will-change: transform; /* 提示浏览器提前优化 */
}

.slide.active {
    opacity: 1;
    z-index: 1;
}

/* 激活时，所有图片统一向右平移 */
.slide.active .slide-bg {
    transform: translate3d(3.5%, 0, 0); /* 将平移距离调整为之前的 2% 和 5% 的中间值，并保持硬件加速 */
}

.slide-content {
    color: var(--text-light);
    max-width: 600px;
}

.slide-content h2 {
    color: var(--accent-color);
    font-size: 1.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.slide-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.slide-content p {
    font-size: 1.4rem;
    font-weight: 500;
    margin-bottom: 30px;
}

.slider-controls-container {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 5px;
    z-index: 2;
}

.slider-controls-container button {
    background-color: transparent;
    border: none;
    width: 14px;
    height: 14px;
    padding: 0;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.5; /* 未点击时灰色/半透明 */
    margin: 0 5px; /* 和圆点之间拉开一点距离 */
}

.slider-controls-container button img {
    width: 100%;
    height: 100%;
    /* 将黑色图标转为白色以便着色，并添加 SVG stroke 加粗效果（通过 drop-shadow 模拟或直接加粗线条） */
    filter: invert(1) drop-shadow(0 0 2px white) drop-shadow(0 0 1px white); 
    transition: var(--transition);
}

/* 电脑端悬停变为橙色，并且去除 :active 状态可能导致的点击后驻留问题 */
@media (hover: hover) {
    .slider-controls-container button:hover {
        opacity: 1;
        transform: scale(1.2);
    }

    .slider-controls-container button:hover img {
        /* 将白色转为主题橙色 (#f97106) 的滤镜效果，同时保持加粗阴影 */
        filter: invert(51%) sepia(85%) saturate(2335%) hue-rotate(352deg) brightness(101%) contrast(97%) drop-shadow(0 0 2px #f97106) drop-shadow(0 0 1px #f97106);
    }
}

/* 无论电脑还是手机，按下时变成橙色 */
.slider-controls-container button:active,
.slider-controls-container button.is-clicked {
    opacity: 1 !important;
    transform: scale(1.3) !important; /* 点击时明显放大，提供更强的视觉反馈 */
}

/* 重点修复：在触摸设备上，使用 :active 或者额外的 JavaScript class 强制覆盖颜色 */
.slider-controls-container button:active img,
.slider-controls-container button.is-clicked img {
    filter: invert(51%) sepia(85%) saturate(2335%) hue-rotate(352deg) brightness(101%) contrast(97%) drop-shadow(0 0 2px #f97106) drop-shadow(0 0 1px #f97106) !important;
    transition: filter 0.1s ease !important; /* 让变色更干脆 */
}

.slider-dots {
    display: flex;
    gap: 10px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.5); /* 未点击时灰色/半透明 */
    cursor: pointer;
    transition: var(--transition);
}

.dot.active,
.dot:hover {
    background-color: var(--primary-color);
    transform: scale(1.2);
}

/* Featured Products Showcase (Homepage) */
.featured-showcase {
    width: 100%;
}

.showcase-block {
    padding: 80px 0;
}

.showcase-block.bg-light {
    background-color: var(--bg-light); /* 浅灰底色区隔 */
}

.showcase-container {
    display: flex;
    align-items: flex-end; /* 修改为下对齐 */
    gap: 80px; /* 图文间距 */
}

.showcase-block.reverse .showcase-container {
    flex-direction: row-reverse;
}

.showcase-text {
    flex: 0.9; /* 减小文字占比 */
    padding-bottom: 20px; /* 下对齐时稍微留出一点底部边距，不要完全贴底 */
}

.showcase-badge {
    display: inline-block;
    color: var(--primary-color);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.showcase-text h2 {
    font-size: 2.5rem; /* 标题字号调小 */
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 20px; /* 间距微调 */
    line-height: 1.15;
    text-transform: uppercase;
}

.showcase-text p {
    font-size: 1.15rem; /* 正文也微微调小以匹配标题比例 */
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 30px;
    max-width: 600px;
}

.showcase-actions {
    display: flex;
    gap: 15px;
}

.showcase-actions .btn {
    border-radius: 4px; /* 匹配全站硬朗的微圆角风格 */
}

.showcase-image {
    flex: 1.2; /* 增大图片占比，让画幅变大 */
    position: relative;
}

.showcase-image-inner {
    display: block; /* 使 a 标签能够撑满容器 */
    width: 100%;
    aspect-ratio: 16/11; /* 类似参考图的长方形比例 */
    background-color: #e5e5e5;
    border-radius: 6px; /* 将圆角从 12px 改小为 6px */
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0,0,0,0.05); /* 稍微减弱一点阴影 */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* 如果是链接，增加悬停效果 */
a.showcase-image-inner:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.showcase-image-inner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    /* 去掉了 scale 放大动效过渡 */
}

/* Auto-slider specific styles */
.showcase-mini-slider {
    position: relative;
}

.showcase-mini-slider img {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.showcase-mini-slider img.active {
    opacity: 1;
}

/* 去掉 hover 放大的特效 */
.showcase-block:hover .showcase-image-inner img {
    /* transform: scale(1.03); */
}

/* 响应式调整 */
@media (max-width: 992px) {
    .showcase-block {
        padding: 60px 0;
    }
    /* 强制移动端图片在文字上方 */
    .showcase-container,
    .showcase-block.reverse .showcase-container {
        flex-direction: column-reverse; /* 因为在HTML里文字在前面，所以用 column-reverse 把图片顶上去 */
        gap: 30px;
    }
    
    .showcase-image {
        width: 100%; /* 确保图片占满容器 */
    }
    
    .showcase-text {
        text-align: left; /* 手机端文字左对齐 */
        padding-bottom: 0; /* 清除电脑端的下对齐边距 */
    }
    .showcase-text h2 {
        font-size: 2rem; /* 手机端标题再稍微缩小点，避免太拥挤 */
    }
    .showcase-text p {
        margin-left: 0;
        margin-right: 0;
    }
    .showcase-actions {
        justify-content: flex-start; /* 按钮靠左 */
    }
    .showcase-actions .btn {
        padding-left: 40px; /* 增加按钮左右内边距，方便手指点击 */
        padding-right: 40px;
    }
}

/* About Intro */
.about-intro {
    text-align: center;
    padding: 100px 0;
    /* 尝试：将底色改为品牌橙色 */
    background-color: var(--primary-color);
}

.about-text h2 {
    font-size: 1.42rem;
    font-weight: 700;
    /* 尝试：在橙色底上，原先的橙色小标题改为纯白 */
    color: var(--text-light); 
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.about-text .lead {
    font-size: 2.3rem;
    /* 尝试：巨型副标题在橙色底上使用深黑色依然有很好的对比度，保留 */
    color: var(--secondary-color); 
    font-weight: 800;
    margin-bottom: 25px;
    line-height: 1.3;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.about-text p:not(.lead) {
    font-size: 1.15rem;
    /* 尝试：正文在橙色底上需要更高的亮度，改用纯白或极浅灰 */
    color: rgba(255, 255, 255, 0.9); 
    max-width: 900px;
    margin: 0 auto 40px auto;
    line-height: 1.6;
}

/* 尝试：在橙色底上，改为白色底色、橙色文字的按钮，悬停变黄 */
.about-intro .btn-secondary {
    background-color: var(--text-light); /* 白底 */
    color: var(--primary-color); /* 橙字 */
    box-shadow: 0 4px 10px rgba(0,0,0,0.1); /* 增加一点微弱的阴影让白色按钮浮起来 */
}

.about-intro .btn-secondary:hover {
    background-color: var(--accent-color); /* 悬停变为品牌黄 (#ffce2f) */
    color: var(--secondary-color); /* 悬停时字变成深黑色，保证在黄底上的对比度 */
    box-shadow: 0 8px 15px rgba(0,0,0,0.15);
}

@media (max-width: 768px) {
    .about-intro {
        padding: 60px 0;
    }
    .about-text h2 {
        font-size: 1.1rem; /* 手机端标题也对应缩小点 */
    }
    .about-text .lead {
        font-size: 1.8rem; /* 手机端副标题对应缩小 */
    }
}

/* About Page Styles */
.about-story {
    position: relative;
    overflow: hidden;
}

.about-story::after {
    content: 'V';
    position: absolute;
    bottom: -14%; /* 往下移动，使其底部与下方灰色区域完美连接 */
    right: -2%;
    font-size: 45vw;
    /* 使用几何无衬线字体，确保 V 的左右笔画粗细完全一致 */
    font-family: 'Century Gothic', 'Futura', 'Tw Cen MT', 'Montserrat', sans-serif;
    font-weight: 900; /* 将字重加到最大 */
    -webkit-text-stroke: 1.5vw var(--bg-light); /* 与下方 Heritage 版块的浅灰色相同 */
    font-style: normal;
    color: var(--bg-light); /* 与下方 Heritage 版块的浅灰色相同 */
    opacity: 1; /* 取消透明度，形成高级的负空间镂空效果 */
    line-height: 0.8;
    z-index: 0;
    pointer-events: none;
    user-select: none;
}

@media (max-width: 768px) {
    .about-story::after {
        font-size: 80vw;
        bottom: -5%; /* 手机端同样下移连接底部 */
        right: -10%;
        -webkit-text-stroke: 2.5vw var(--bg-light);
        opacity: 1;
    }
}

.about-story .container {
    position: relative;
    z-index: 1;
}

.story-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

@media (min-width: 992px) {
    .story-grid {
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }
}

.story-content p {
    color: var(--text-muted);
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
    line-height: 1.7;
}

.story-content .lead {
    font-size: 1.4rem;
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.highlight-text {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* Accent Line Paragraphs */
.accent-paragraph {
    border-left: 3px solid var(--primary-color);
    padding-left: 20px;
    margin: 25px 0;
    position: relative;
}

.accent-paragraph p:last-child {
    margin-bottom: 0;
}

.brand-quote {
    margin-top: 40px;
    padding: 30px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    text-align: center;
}

.brand-quote p {
    font-size: 1.5rem;
    font-style: italic;
    color: var(--primary-color);
    font-weight: 600;
    margin: 0;
    line-height: 1.4;
}

.story-image img {
    width: 100%;
    /* 移除圆角和悬浮动效，保持最简单大气的直角边框 */
}

.about-heritage {
    position: relative;
    overflow: hidden;
}

.about-heritage::after {
    content: 'T';
    position: absolute;
    bottom: -18%; /* 稍微下移，以适应更大的字体 */
    left: -5%; /* 稍微左移，以适应更大的字体 */
    font-size: 75vw; /* 将 T 放大，使其更具视觉冲击力 */
    font-family: 'Century Gothic', 'Futura', 'Tw Cen MT', 'Montserrat', sans-serif;
    font-weight: 900;
    -webkit-text-stroke: 1.5vw var(--text-light); /* 与上方 Story 版块的白色相同 */
    font-style: normal;
    color: var(--text-light); /* 与上方 Story 版块的白色相同 */
    opacity: 1; /* 取消透明度，形成高级的负空间镂空效果 */
    line-height: 0.8;
    z-index: 0;
    pointer-events: none;
    user-select: none;
}

@media (max-width: 768px) {
    .about-heritage::after {
        font-size: 110vw; /* 手机端同步放大 */
        bottom: -8%;
        left: -12%;
        -webkit-text-stroke: 2.5vw var(--text-light);
        opacity: 1;
    }
}

.about-heritage .container {
    position: relative;
    z-index: 1;
}

/* Heritage Block Styles (Minimalist alternating layout) */
.heritage-block {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-bottom: 80px;
    align-items: center;
}

.heritage-block:last-child {
    margin-bottom: 0;
}

@media (min-width: 992px) {
    .heritage-block {
        flex-direction: row;
        gap: 80px;
    }
    
    .heritage-block:nth-child(even) {
        flex-direction: row-reverse;
    }
    
    .heritage-image, .heritage-text {
        flex: 1;
    }
}

.heritage-text h3 {
    font-size: 2.2rem;
    color: var(--secondary-color);
    margin-bottom: 25px;
    font-weight: 700;
}

.heritage-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.heritage-text p:last-child {
    margin-bottom: 0;
}

.heritage-image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background-color: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 1.2rem;
    position: relative;
    overflow: hidden;
}

/* Skeleton Loading Animation */
.heritage-image-placeholder::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
    background-image: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0,
        rgba(255, 255, 255, 0.4) 20%,
        rgba(255, 255, 255, 0.6) 60%,
        rgba(255, 255, 255, 0)
    );
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    100% {
        transform: translateX(100%);
    }
}

/* 在这里预设未来真实图片的样式，保证没有圆角和动效 */
.heritage-image img {
    width: 100%;
    display: block;
}

.heritage-today {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-top: 100px;
    padding-top: 60px;
    border-top: 1px solid #e0e0e0;
}

@media (min-width: 992px) {
    .heritage-today {
        flex-direction: row;
        gap: 80px;
        align-items: flex-start;
    }
    
    .heritage-today-title {
        flex: 1;
    }
    
    .heritage-today-content {
        flex: 2;
    }
}

.heritage-today-title h3 {
    font-size: 2.2rem;
    color: var(--secondary-color);
    margin-bottom: 0;
    font-weight: 700;
}

.heritage-today-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.heritage-today-content p:last-child {
    margin-bottom: 0;
}

/* Scroll Reveal Animation */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.165, 0.84, 0.44, 1), transform 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
    will-change: opacity, transform;
}

.reveal-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Product Categories Grid */
.bg-light {
    background-color: var(--bg-light);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px; /* 减小卡片之间的间距 */
}

@media (min-width: 1200px) {
    .categories-grid {
        grid-template-columns: repeat(5, 1fr); /* 调整为 5 列 */
        gap: 20px; /* 电脑端也保持较小的间距 */
    }
}

@media (max-width: 768px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr); /* 手机端显示两列 */
        gap: 15px; /* 减小间距 */
    }
    
    .card-img {
        height: 120px; /* 手机端缩小图片高度 */
    }
    
    .card-content {
        padding: 15px 10px;
    }
    
    .card-content h3 {
        font-size: 0.95rem; /* 手机端进一步缩小字号 */
    }
}

.category-card {
    background-color: var(--text-light);
    border-radius: 12px; /* 略微增加圆角，更现代 */
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.04); /* 降低初始阴影的生硬度 */
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.4s ease; /* 使用更高级的弹性曲线动画 */
    display: flex;
    flex-direction: column;
    height: 100%;
}

.category-card:hover {
    transform: translateY(-8px); /* 悬浮高度稍微收敛，避免过度夸张 */
    box-shadow: 0 15px 35px rgba(0,0,0,0.12); /* 加深悬停时的长投影效果 */
}

.card-img {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.card-content {
    padding: 25px 15px; /* 缩小左右边距以适应更窄的卡片 */
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center; /* 居中标题 */
    flex-grow: 1;
}

.card-content h3 {
    color: var(--secondary-color);
    margin-bottom: 0; /* 移除底部间距，因为没有描述和按钮了 */
    font-size: 1.15rem; /* 稍微缩小字号以适应 5 列 */
    font-weight: 700;
}

/* Pagination Styles */
.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 60px;
    padding-top: 30px;
}

.page-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    border: 1px solid var(--secondary-color); /* 默认黑框 */
    border-radius: 0; /* 直角设计 */
    background-color: transparent;
    color: var(--secondary-color);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.page-btn:hover:not(:disabled):not(.page-btn-nav) {
    background-color: rgba(0, 0, 0, 0.05); /* 悬停时仅微弱背景变化 */
}

.page-btn.active {
    background-color: var(--primary-color); /* 品牌橙色 */
    border-color: var(--primary-color);
    color: #fff; /* 白色数字 */
}

/* 左右箭头按钮特殊处理：无边框，仅图标 */
.page-btn-nav {
    border: none;
    background: none;
    font-size: 1.3rem; /* 箭头稍微大一点 */
    padding: 0 10px;
}

.page-btn-nav:hover:not(:disabled) {
    color: var(--primary-color);
    background: none;
    transform: scale(1.1); /* 悬停稍微放大 */
}

.page-btn-nav:disabled {
    opacity: 0.2;
    cursor: not-allowed;
    background: none;
}

/* Page Header (Subpages) */
.page-header {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: 100px 0;
    text-align: center;
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 300px; /* 电脑端最小高度保证 */
}

.page-header h1 {
    font-size: 3rem;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.2rem;
    color: #f8f8f8; /* 提亮副标题颜色，从 #ccc 变更为更亮的近白色 */
    font-weight: 500; /* 稍微增加字重，提升在深色背景图上的可读性 */
    max-width: 800px;
    margin: 0 auto;
}

/* CTA Section */
.cta-section {
    background-color: var(--bg-dark);
    color: var(--text-light);
    text-align: center;
    padding: 40px 0; /* 覆盖默认的 80px section padding，显著降低高度 */
}

.cta-section h2 {
    font-size: 2rem; /* 从 2.5rem 调小 */
    text-transform: uppercase;
    margin-bottom: 10px; /* 从 15px 调小 */
}

.cta-section p {
    font-size: 1.1rem; /* 从 1.2rem 调小 */
    margin-bottom: 20px; /* 从 30px 调小 */
    color: #CCCCCC;
}

/* Footer */
footer {
    background-color: #111111;
    color: #999999;
    padding: 40px 0 20px; 
}

.footer-grid {
    display: grid;
    /* 
      采用 Flex 思想结合 Grid：
      左侧占尽剩余空间，右侧两列自动适应自身宽度。
    */
    grid-template-columns: 1fr auto auto;
    gap: 40px; 
    margin-bottom: 30px; 
    /* 移除左右内边距，让 .container 自带的边距控制对齐 */
}

.footer-links, .footer-contact {
    transform: none; /* 彻底移除平移，这会引发超框和滚动条问题 */
}

.footer-brand {
    margin-left: 20px; /* 原来是右移50px，现在往左回退30px，即净右移20px */
}

.footer-logo {
    height: 34px; /* 从 40px 缩小为目前的 6/7 */
    margin-bottom: 15px; 
    display: block; /* 避免行内元素的底部基线间隙 */
}

.footer-logo img {
    height: 100%;
    width: auto;
    display: block;
}

.footer-brand p {
    max-width: 420px; /* 增加宽度，防止长句子尴尬断行 */
    line-height: 1.5; /* 稍微增加行高提升可读性 */
    margin-bottom: 0;
    color: #cccccc; /* 提亮颜色，与右侧 Quick Links 的文字颜色保持一致 */
}

footer h3 {
    color: var(--text-light);
    margin-bottom: 15px; 
    font-size: 1.2rem;
    text-transform: uppercase;
}

.footer-links ul li {
    margin-bottom: 0; /* 彻底移除下边距 */
    line-height: 1.4; /* 和左边文案保持完全一致的行高 */
    padding-bottom: 5px; /* 用一点内边距微调间隙 */
}

.footer-links ul li a:hover {
    color: var(--primary-color);
}

.footer-contact {
    position: relative;
    z-index: 10;
}

.footer-contact p {
    margin-bottom: 0;
    line-height: 1.4; 
    padding-bottom: 5px;
    white-space: nowrap; /* 强制内容不换行 */
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    position: relative;
    z-index: 10;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #333333;
    border-radius: 50%;
    color: var(--text-light);
    transition: var(--transition);
    z-index: 10;
    position: relative;
}

.social-icon img {
    width: 24px; /* Increase default size to match visually smaller SVGs */
    height: 24px;
    /* Invert black SVGs to white */
    filter: invert(1);
    transition: var(--transition);
}

/* Specific sizing to balance visual weights of different SVG viewboxes */
.social-icon[title="X"] img,
.social-icon[title="TikTok"] img {
    width: 18px; /* Slightly smaller for SVGs that take up their full viewbox */
    height: 18px;
}

.social-icon:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.social-icon:hover img {
    /* Keep it white when hovering over the orange background */
    filter: invert(1);
}

.footer-bottom {
    border-top: 1px solid #333333;
    padding-top: 20px;
    text-align: center;
    font-size: 0.9rem;
}

/* Resource Center (Support Page) */
.resource-header {
    text-align: center;
    margin-bottom: 40px; /* 将底部间距调大，让搜索框稍微下移一点 */
}

.resource-header .section-title {
    margin-bottom: 10px; /* 覆盖全局 section-title 默认的 40px margin-bottom */
}

.resource-header p {
    margin-bottom: 0; /* 移除 p 标签默认的底部间距 */
}

.resource-search {
    max-width: 1000px; /* 进一步加宽，几乎贯穿主体内容区 */
    margin: 0 auto 50px; /* 调整搜索框下方的间距 */
    position: relative;
}

.resource-search input {
    width: 100%;
    padding: 15px 30px 15px 55px; /* 恢复原来的高度内边距，保持修长感 */
    font-size: 1.1rem; /* 恢复原来的字体大小 */
    border: 2px solid #e0e0e0;
    border-radius: 4px; /* 改为很小的方形圆角 */
    outline: none;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0,0,0,0.03); /* 保留高级阴影 */
}

.resource-search input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(249, 113, 6, 0.15); /* 保留高级聚焦阴影 */
}

.resource-search svg {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}

.resource-tabs {
    display: flex; /* 改回 flex，利用外层容器居中 */
    justify-content: center;
    background-color: #f1f1f1; /* 浅灰色胶囊底座 */
    padding: 6px; /* 内部留白 */
    border-radius: 4px; /* 改为方形圆角底座 */
    margin: 0 auto 50px;
    width: max-content; /* 强制宽度为内部内容的最大宽度，避免被拉伸 */
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.05); /* 内阴影增加凹陷感 */
}

.tab-btn {
    padding: 12px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-muted);
    background: transparent;
    border: none;
    border-radius: 4px; /* 内部按钮改为方形圆角 */
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}

.tab-btn:hover {
    color: var(--secondary-color);
}

.tab-btn.active {
    color: var(--primary-color);
    background-color: #ffffff; /* 激活时变为白色浮块 */
    box-shadow: 0 4px 15px rgba(0,0,0,0.08); /* 激活时增加投影，产生“凸起”效果 */
}

@media (max-width: 768px) {
    .resource-tabs {
        width: 100%;
        max-width: 100%;
        flex-direction: row;
        border-radius: 4px;
        box-sizing: border-box;
    }
    .tab-btn {
        flex: 1;
        padding: 10px 5px;
        font-size: 0.85rem;
        border-radius: 4px;
        white-space: normal; /* 允许文字换行，防止撑爆 */
        text-align: center;
        line-height: 1.2;
    }
}

.resource-grid {
    display: none;
    animation: fadeIn 0.4s ease;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.resource-grid.active {
    display: block; /* 改为块级显示，用于列表布局 */
}

/* 列表头部标题栏 (类似表格表头) */
.resource-list-header {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr; /* 四列比例 */
    padding: 15px 20px;
    background-color: #242424; /* 使用品牌主题黑242424 */
    color: var(--text-light);
    font-weight: 700;
    font-size: 1.05rem;
    border-radius: 4px 4px 0 0;
    margin-bottom: 0;
}

/* 全局搜索模式下的表头容器限制，使其和下方内容宽度一致 */
#global-search-header {
    max-width: 1200px;
    margin: 0 auto;
}

/* 列表行样式 (类似表格行) */
.resource-card {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr; /* 与表头比例一致 */
    align-items: start; /* 改为顶部对齐，保证所有文本和第一行SKU对齐 */
    padding: 20px;
    background: #fff;
    border-bottom: 1px solid #e0e0e0;
    transition: background-color 0.2s ease;
}

/* 移除原有的卡片阴影、圆角和浮动特效，保持极简直列 */
.resource-card:hover {
    background-color: #f9f9f9;
}

/* 最后一个列表项的底部边框处理 */
.resource-card:last-child {
    border-bottom: 2px solid #e0e0e0;
}

/* 彻底隐藏原来的大图标和视频缩略图包装器 */
.resource-icon-wrapper {
    display: none;
}

/* 重构资源内容区，不再垂直排列，而是网格化 */
.resource-content {
    display: contents; /* 让内部元素直接参与外层的 grid 布局 */
}

/* 列 1：产品/部件名称 (SKU/Model) */
.resource-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0;
    font-weight: 500;
    padding-right: 20px;
}

.resource-card h3 a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.2s ease;
}

.resource-card h3 a:hover {
    color: var(--primary-color);
}

/* 列 2 & 列 3：副标题或描述（被拆分为两列模拟 Serial / Date）*/
/* 这里我们用 p 标签或 sku-list 容器来模拟中间的数据列 */
.resource-card p,
.resource-card .sku-list {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 0;
}

.resource-card .sku-list {
    display: flex;
    flex-direction: column;
    gap: 4px; /* 上下多行SKU的间距，使其紧凑但可读 */
}

/* 列 4：操作按钮区 */
.resource-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-start;
    align-items: center; /* 垂直居中对齐图标和文字 */
}

/* 将按钮改为极简的文字链接风格，带图标，类似专业文档链接 */
.resource-actions .btn {
    display: inline-flex;
    align-items: center;
    gap: 6px; /* 图标与文字间距 */
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    font-size: 0.95rem;
    font-weight: 500;
    text-transform: none;
    position: relative; /* 为了下划线动画 */
}

.resource-actions .btn svg {
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
}

.resource-actions .btn:hover svg {
    transform: translateY(-2px); /* 悬停时小图标有一个活泼的上浮 */
}

/* 区分层级：主按钮 (Download / Watch Video) 使用品牌色，更显眼 */
.resource-actions .btn-primary {
    color: var(--primary-color);
}
.resource-actions .btn-primary:hover {
    color: #e06000; /* 悬停时加深品牌色 */
    background: transparent;
    transform: none;
    box-shadow: none;
    text-decoration: underline; /* 明确的可点击暗示 */
}

/* 区分层级：次按钮 (View PDF) 使用深灰色，弱化但清晰 */
.resource-actions .btn-outline {
    color: var(--text-dark);
}
.resource-actions .btn-outline:hover {
    color: var(--primary-color); /* 悬停时变成品牌色，产生互动感 */
    background: transparent;
    transform: none;
    box-shadow: none;
    text-decoration: underline;
}

/* 底部搜索提示框重构 - 极简文字版 */
.search-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 40px auto 20px;
    padding: 10px 0;
    max-width: 1200px; /* 恢复最大宽度，让文字自然居中 */
    background: transparent; /* 去除白底 */
    border: none; /* 去除边框 */
    box-shadow: none; /* 去除阴影 */
    color: #888; /* 使用更柔和的浅灰色 */
    font-size: 0.95rem;
    position: relative;
}

/* 去除侧边的竖线 */
.search-hint::before {
    display: none;
}

.search-hint strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    /* 手机端 Support 列表响应式重构 (卡片流布局) */
    .resource-list-header {
        display: none; /* 隐藏电脑端的黑色大表头 */
    }
    
    #global-search-header {
        display: none !important; /* 隐藏全局搜索时的黑色大表头 */
    }

    .resource-card {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 20px 15px;
        border: 1px solid #eee; /* 增加边框 */
        border-radius: 8px; /* 增加圆角 */
        margin-bottom: 15px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    }
    
    .resource-card:last-child {
        border-bottom: 1px solid #eee;
    }

    /* 列1: 标题重新排版 */
    .resource-card h3 {
        padding-right: 0;
        font-size: 1.15rem;
        font-weight: 600;
        border-bottom: 1px dashed #eee;
        padding-bottom: 10px;
    }

    /* 列2 & 列3: SKU 和 Type 增加前缀标识并并排显示 */
    .resource-card p,
    .resource-card .sku-list {
        font-size: 0.9rem;
    }
    
    /* 使用 nth-child 精准定位 SKU 和 Type，避免互相干扰 */
    .resource-card > *:nth-child(2)::before {
        content: 'SKU: ';
        font-weight: 600;
        color: var(--text-dark);
        margin-bottom: 2px;
    }
    
    .resource-card > *:nth-child(3)::before {
        content: 'Type: ';
        font-weight: 600;
        color: var(--text-dark);
    }

    /* 列4: 按钮区铺满底部 */
    .resource-actions {
        margin-top: 10px;
        padding-top: 15px;
        border-top: 1px dashed #eee;
        justify-content: space-between; /* 按钮分散对齐 */
        width: 100%;
    }
    
    .resource-actions .btn {
        font-size: 0.9rem;
    }

    header .container {
        height: 60px; /* 减小手机端导航栏高度 */
    }

    header.shrink .container {
        height: 50px; /* 手机端下滑时进一步缩小 */
    }

    .logo img {
        height: 40px;
    }

    header.shrink .logo img {
        height: 32px; /* 手机端下滑时Logo相应缩小 */
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 60px; /* 调整为与导航栏等高 */
        left: 0;
        width: 100%;
        background-color: var(--secondary-color);
        flex-direction: column;
        padding: 20px 0;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
        text-align: center;
        gap: 15px;
        transition: top 0.3s ease; /* 让下拉菜单的位置也能平滑跟随导航栏变化 */
    }

    header.shrink .nav-links {
        top: 50px; /* 导航栏缩小时，下拉菜单顶部位置相应上移 */
    }
    
    .nav-links.active {
        display: flex;
    }

    nav {
        gap: 0; /* 去掉间距，让搜索框靠右 */
        flex-grow: 1; /* 让 nav 占据中间的所有可用空间 */
        justify-content: flex-end; /* 让内容靠右 */
    }

    /* 移动端搜索框下拉方案 */
    .nav-search {
        position: static; 
        margin-left: 0;
        margin-right: 15px; /* 与汉堡菜单图标留出一点间距 */
    }

    .nav-search form {
        position: static;
        border-bottom: none;
    }
    
    .nav-search form.is-open,
    .nav-search form:focus-within {
        border-bottom: none;
    }

    /* 手机端搜索框包裹层（抽屉背景） */
    .nav-search form::after {
        content: '';
        position: fixed; /* 使用 fixed 定位，脱离相对定位干扰 */
        top: 60px; /* 跟随手机端导航栏新高度 */
        left: 0;
        width: 100vw; /* 强制占据 100% 视口宽度 */
        height: 0;
        background-color: var(--secondary-color); /* 与导航栏相同的黑色 */
        border-bottom: 3px solid var(--accent-color);
        box-shadow: 0 10px 10px rgba(0,0,0,0.2);
        z-index: 997;
        opacity: 0;
        transition: height 0.3s ease, opacity 0.3s ease, top 0.3s ease;
    }

    header.shrink .nav-search form::after {
        top: 50px;
    }

    .nav-search form.is-open::after,
    .nav-search form:focus-within::after,
    .search-input:focus ~ *,
    .search-input:not(:placeholder-shown) ~ * {
        height: 60px; /* 抽屉的高度 = 上间距10 + 框高40 + 下间距10 */
        opacity: 1;
    }

    /* 手机端搜索框输入框隐藏时的处理 */
    .search-input {
        position: fixed; /* 使用 fixed 定位，完全脱离任何父元素的限制 */
        top: 70px; /* 抽屉内容与导航栏留10px间隙 (60 + 10) */
        left: 10px; 
        right: 10px;
        width: auto !important; /* 强制覆盖可能在别处设置的 width */
        max-width: none !important; /* 强制覆盖 max-width */
        padding: 0 15px;
        height: 0; 
        background-color: #3a3a3a; 
        border: none;
        border-radius: 4px;
        transform: none; 
        z-index: 998;
        opacity: 0; 
        overflow: hidden;
        transition: height 0.3s ease, opacity 0.3s ease, top 0.3s ease;
        box-sizing: border-box;
    }

    header.shrink .search-input {
        top: 60px;
    }

    /* 搜索框下拉显示 */
    .nav-search form.is-open .search-input,
    .nav-search form:focus-within .search-input,
    .search-input:focus,
    .search-input:not(:placeholder-shown) {
        position: fixed; /* 同样使用 fixed */
        top: 70px; 
        left: 10px;
        right: 10px; 
        width: auto !important; 
        max-width: none !important; 
        height: 40px; 
        padding: 0 15px;
        background-color: #3a3a3a;
        border: 1px solid #555; 
        border-bottom: none;
        box-shadow: none;
        opacity: 1; 
        z-index: 998; 
        box-sizing: border-box;
    }

    header.shrink .nav-search form.is-open .search-input,
    header.shrink .nav-search form:focus-within .search-input,
    header.shrink .search-input:focus,
    header.shrink .search-input:not(:placeholder-shown) {
        top: 60px;
    }
    
    .mobile-menu-btn {
        display: flex;
        margin-left: 15px;
    }
    
    .hero-slider {
        height: 65vh; /* 从 80vh 缩短，避免占满整个屏幕 */
        min-height: 400px; /* 同步缩短保底高度 */
    }

    /* 手机端替换为竖版背景图，并为竖图单独调整漂浮参数解决卡顿 */
    .slide:nth-child(1) .slide-bg {
        background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/banner_car_mobile.webp') !important;
    }
    .slide:nth-child(2) .slide-bg {
        background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('../images/banner_moto_mobile.webp') !important;
    }
    .slide:nth-child(3) .slide-bg {
        background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/banner_rv_mobile.webp') !important;
    }
    .slide:nth-child(4) .slide-bg {
        background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('../images/banner_truck_mobile.webp') !important;
    }

    /* 手机端覆盖全局的 transform 参数 */
    .slide-bg {
        /* 在手机端调整平移比例和时间 */
        /* 增加位移量让效果更明显，同时保持 10s 避免过于缓慢 */
        transition: transform 10s linear; 
    }
    
    .slide.active .slide-bg {
        transform: translate3d(4%, 0, 0); /* 提升平移幅度到 4% */
    }

    .slide-content {
        padding: 0 20px; /* 防止文字贴边 */
    }

    .slide-content h2 {
        font-size: 1.2rem;
    }

    .slide-content h1 {
        font-size: 2rem;
    }

    .slide-content p {
        font-size: 1.1rem;
    }

    /* 手机端 Banner 按钮下调 */
    .slider-controls-container {
        bottom: 10px;
    }

    /* 手机端专用子页面背景图加载 */
    #products-header {
        background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/header_products_mobile.webp') !important;
    }
    
    #support-header {
        background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/header_support_mobile.webp') !important;
    }
    
    #contact-header {
        background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/header_contact_mobile.webp') !important;
    }
    
    #about-header {
        background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/header_about_mobile.webp') !important;
    }

    .page-header {
        padding: 50px 20px;
        min-height: 240px; /* 增加固定最小高度，使Banner更加高挑、有呼吸感 */
        height: 240px; /* 强制统一高度，从180px提升至240px */
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .page-header .container {
        /* 在高度固定的情况下，若文字较多可适度隐藏或紧凑排列，但优先保证居中 */
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .page-header h1 {
        font-size: 2.2rem;
        margin-bottom: 10px;
    }

    .page-header p {
        font-size: 0.95rem; /* 稍微缩小字号防止多行时溢出 */
        line-height: 1.4;
        display: -webkit-box;
        -webkit-line-clamp: 3; /* 最多显示3行，超出省略，防止撑爆banner */
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    footer {
        padding: 30px 0 15px; 
    }

    .footer-grid {
        grid-template-columns: 1fr;
        padding-right: 0;
        gap: 25px;
        margin-bottom: 20px;
    }

    .footer-brand {
        margin-left: 0; /* 手机端取消向右移动，恢复默认对齐 */
    }

    .footer-logo {
        height: 26px; /* 手机端按 6/7 比例同步缩小（原30px） */
        margin-bottom: 10px;
    }

    footer h3 {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }

    .footer-brand p, 
    .footer-links ul li, 
    .footer-contact p {
        font-size: 0.9rem;
    }

    .social-links {
        margin-top: 15px;
    }

    .social-icon {
        width: 32px;
        height: 32px;
    }

    .social-icon img {
        width: 18px;
        height: 18px;
    }
    
    /* 手机端同步缩放比例偏大的 X 和 TikTok 图标 */
    .social-icon[title="X"] img,
    .social-icon[title="TikTok"] img {
        width: 14px;
        height: 14px;
    }
    
    .footer-links, .footer-contact {
        transform: none; /* 手机端取消平移 */
    }
}

/* Search Box Styles (Milwaukee Tool style) */
nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-search {
    margin-left: 10px;
}

.nav-search form {
    display: flex;
    align-items: center;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.nav-search form.is-open,
.nav-search form:focus-within {
    border-bottom-color: var(--accent-color);
}

.search-input {
    width: 0;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text-light);
    transition: width 0.4s ease, padding 0.4s ease, background-color 0.4s ease;
    outline: none;
    font-size: 0.95rem;
    font-family: inherit;
    border-radius: 4px;
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

/* Expand the input when input is focused or when active class is added via JS */
.nav-search form.is-open .search-input,
.nav-search form:focus-within .search-input,
.search-input:focus,
.search-input:not(:placeholder-shown) {
    width: 180px;
    padding: 5px 10px;
    background-color: #3a3a3a; /* 稍微浅一点的灰色 */
}

.search-btn {
    background: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.search-btn:hover {
    color: var(--primary-color);
}

/* --- Shop Layout (Products Page Preview) --- */
.shop-section {
    padding-top: 40px;
    padding-bottom: 80px;
}

.shop-container {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

/* Sidebar */
.shop-sidebar {
    width: 250px;
    flex-shrink: 0;
    padding-left: 20px; /* 增加左侧内边距，让整个侧边栏往右推，避免贴着边缘 */
}

.sidebar-widget {
    margin-bottom: 40px;
}

.widget-title {
    font-size: 1.1rem; /* 略大于下面的分类项 (0.95rem) */
    font-weight: 700; /* 加粗以增强标题感 */
    text-transform: uppercase;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.category-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-list li {
    margin-bottom: 12px;
}

.category-list a {
    color: var(--text-muted);
    font-size: 0.95rem;
    text-transform: uppercase;
    transition: var(--transition);
    font-weight: 500;
}

.category-list a:hover, .category-list a.active {
    color: var(--text-dark);
    text-decoration: underline;
}

.filter-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.filter-list li {
    margin-bottom: 12px;
}

.filter-list label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--text-muted);
    cursor: pointer;
}

.filter-list input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

/* Sidebar Overlay and Close Button (Hidden on Desktop) */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.sidebar-close-btn {
    display: none;
    position: absolute;
    top: 15px;
    right: 20px;
    background: transparent;
    border: none;
    font-size: 2rem;
    color: var(--text-dark);
    cursor: pointer;
    z-index: 2001;
    padding: 0;
    line-height: 1;
}

.mobile-filter-btn {
    display: none;
    align-items: center;
    gap: 8px;
    background: #fff;
    border: 1px solid #ddd;
    padding: 8px 15px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-dark);
    border-radius: 4px;
    cursor: pointer;
    text-transform: uppercase;
    transition: var(--transition);
}

.mobile-filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Main Content */
.shop-main {
    flex-grow: 1;
    min-width: 0;
}

.shop-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.toolbar-left .breadcrumbs {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: block;
}

.toolbar-left .shop-title {
    font-size: 2.2rem;
    font-weight: 700;
    font-style: normal; /* 去掉斜体 */
    color: var(--text-dark);
    margin: 0;
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: 30px;
}

.toolbar-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

.toolbar-control label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-dark);
    text-transform: uppercase;
}

.toolbar-control select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--text-dark);
    outline: none;
    background-color: #fff;
    cursor: pointer;
}

.shop-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 默认每行显示 4 个产品 */
    gap: 20px; /* 间距稍微调小以适应更多产品 */
}

.shop-card {
    position: relative;
    border: 1px solid #eee;
    border-radius: 0;
    background: #fff;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.shop-card:hover {
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.shop-card-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: #ffce2f; /* 使用品牌黄色 */
    color: #ffffff; /* 白色文字 */
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 0; /* 正常矩形，无圆角 */
    z-index: 2;
}

.shop-card-img {
    width: 100%;
    padding-top: 100%; /* 1:1 正方形 */
    background-size: cover;
    background-position: center;
    border-bottom: 1px solid #eee;
}

.shop-card-info {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.shop-card-brand {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 5px;
}

.shop-card-title {
    font-size: 0.95rem; /* 字号略微调小，因为一行放5个 */
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 600;
    line-height: 1.4;
    flex-grow: 1;
}

.shop-card-btn {
    width: 100%;
    text-align: center;
    background-color: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
    padding: 10px;
    border-radius: 4px; /* 使用与首页按钮统一的圆角 */
    transition: var(--transition);
    text-transform: uppercase;
}

.shop-card-btn:hover {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    transform: translateY(-2px); /* 悬停时轻微上浮，与首页一致 */
    box-shadow: 0 4px 12px rgba(249, 113, 6, 0.2); /* 增加品牌色阴影 */
}

.mobile-sort-widget {
    display: none; /* Hide on desktop by default */
}

@media (max-width: 992px) {
    .shop-container {
        flex-direction: column;
    }
    
    /* Mobile Off-Canvas Sidebar */
    .sidebar-overlay {
        display: block;
    }
    .sidebar-overlay.is-active {
        opacity: 1;
        visibility: visible;
    }
    .shop-sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        background-color: #fff;
        z-index: 2000;
        padding: 60px 30px 30px;
        overflow-y: auto;
        transition: left 0.3s ease;
        display: block;
        box-shadow: 2px 0 15px rgba(0,0,0,0.15);
    }
    .shop-sidebar.is-open {
        left: 0;
    }
    .sidebar-close-btn {
        display: block;
    }
    .mobile-filter-btn {
        display: flex;
    }
    .sidebar-widget {
        margin-bottom: 30px;
    }
    
    .mobile-sort-widget {
        display: block; /* Show the sort widget in the sidebar on mobile */
        border-top: 1px solid #eee;
        padding-top: 30px;
    }
    
    .items-per-page-control {
        display: none; /* Hide Items Per Page on mobile */
    }
    
    .desktop-sort-control {
        display: none; /* Hide original Sort By on mobile */
    }
    
    .shop-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .shop-toolbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    .toolbar-right {
        width: 100%;
        justify-content: space-between; /* 在移动端让 Filter 按钮和排序选项分开 */
        flex-wrap: wrap;
    }
}

@media (max-width: 576px) {
    /* 手机版默认产品排布：2列，而不是1列 */
    .shop-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px; /* 间距稍微减小以适应手机双列 */
    }
    
    .shop-card-info {
        padding: 15px;
    }
    
    .shop-card-title {
        font-size: 0.9rem;
        margin-bottom: 10px;
    }
    
    .shop-card-btn {
        padding: 8px;
        font-size: 0.85rem;
    }
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.product-card {
    background-color: var(--text-light);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}
.product-img {
    height: 200px;
    background-size: cover;
    background-position: center;
}
.product-info {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}
.product-info h3 {
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-size: 1.2rem;
}
.product-info p {
    color: var(--text-muted);
    margin-bottom: 20px;
    font-size: 0.95rem;
    flex-grow: 1;
}
.product-info .btn {
    align-self: flex-start;
}

/* --- Coming Soon Page --- */
.coming-soon-main {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
    background-color: var(--bg-light);
    padding: 60px 20px;
    background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.9), rgba(245, 245, 245, 1)), url('../images/banner_car.webp');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.coming-soon-content {
    background-color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
    padding: 80px 60px;
    text-align: center;
    border-radius: 0;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    border-top: 5px solid var(--primary-color);
}

.coming-soon-icon {
    margin-bottom: 30px;
}

.coming-soon-icon svg {
    width: 64px;
    height: 64px;
    animation: rotate-slow 15s linear infinite;
}

@keyframes rotate-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.coming-soon-title {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.coming-soon-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 30px;
}

.coming-soon-divider {
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 0 auto 30px;
}

.coming-soon-sub {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 40px;
    font-weight: 500;
}

.coming-soon-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.coming-soon-actions .btn {
    min-width: 200px;
    border-radius: 0;
    padding: 15px 30px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

@media (max-width: 768px) {
    .coming-soon-content {
        padding: 50px 30px;
    }
    
    .coming-soon-title {
        font-size: 2rem;
    }
    
    .coming-soon-actions {
        flex-direction: column;
        gap: 15px;
    }
    
    .coming-soon-actions .btn {
        width: 100%;
    }
}