/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "Segoe UI", Tahoma, Arial, sans-serif;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 全局变量 - 贴合Logo：绿色/金黄色主题 */
:root {
    --primary-color: #00885A;
    --secondary-color: #FFB800;
    --accent-color: #FF7A00;
    --text-dark: #1a1a1a;
    --text-gray: #4a4a4a;
    --text-light: #888888;
    --bg-light: #F8FBF9;
    --bg-white: #FFFFFF;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --header-height: 75px;
    --container-width: 1200px;
}

/* 纹理背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.02;
    pointer-events: none;
    z-index: -1;
}
/* 全局通用样式 */
html {
    scroll-behavior: smooth;
}

body {
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

ul, li {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 按钮通用样式 - 绿色/金黄色主题 */
.btn-primary {
    display: inline-block;
    padding: 12px 28px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 3px;
    font-weight: 500;
    font-size: 14px;
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

    .btn-primary:hover {
        background-color: #006B47;
        transform: translateY(-1px);
    }

    .btn-primary:active {
        transform: scale(0.98);
    }

.btn-accent {
    display: inline-block;
    padding: 12px 28px;
    background-color: var(--accent-color);
    color: var(--white);
    border-radius: 3px;
    font-weight: 500;
    font-size: 14px;
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

    .btn-accent:hover {
        background-color: #E56A00;
        transform: translateY(-1px);
    }

    .btn-accent:active {
        transform: scale(0.98);
    }

.btn-outline {
    display: inline-block;
    padding: 11px 28px;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 3px;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.25s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

    .btn-outline:hover {
        background-color: var(--primary-color);
        color: var(--white);
    }

    .btn-outline:active {
        transform: scale(0.98);
    }

/* 标题通用样式 - 增加变化 */
.section-title {
    text-align: left;
    margin-bottom: 50px;
    padding-left: 15px;
    border-left: 4px solid var(--primary-color);
}

    .section-title h2 {
        font-size: 32px;
        color: var(--text-dark);
        margin-bottom: 12px;
        font-weight: 700;
        letter-spacing: -0.5px;
    }

    .section-title p {
        font-size: 15px;
        color: var(--text-gray);
        max-width: 650px;
        line-height: 1.6;
    }

/* 头部导航栏 - 简化设计 */
.header {
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255,255,255,0.98);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    backdrop-filter: blur(10px);
}

    .header .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: 100%;
    }

.header-left {
    display: flex;
    align-items: center;
    gap: 30px;
}

.logo {
    font-size: 22px;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 0.5px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* 搜索按钮样式 */
.search-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s ease;
    color: var(--text-dark);
}

.search-toggle:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
}

.search-toggle svg {
    width: 20px;
    height: 20px;
}

/* 搜索弹窗 */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ffffff;
    z-index: 9999;
    display: none;
    overflow-y: auto;
}

.search-overlay.active {
    display: block;
}

.search-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 40px 40px;
}

.search-close {
    position: absolute;
    top: 30px;
    right: 40px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5f5f5;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: #666;
    font-size: 24px;
    transition: all 0.3s ease;
}

.search-close:hover {
    background: #e0e0e0;
    color: #333;
}

.search-input-wrapper {
    position: relative;
    margin-bottom: 30px;
}

.search-input-wrapper svg {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    color: #999;
}

.search-input {
    width: 100%;
    padding: 20px 20px 20px 60px;
    background-color: #f8f8f8;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-size: 20px;
    color: #333;
    outline: none;
    transition: all 0.3s ease;
}

.search-input::placeholder {
    color: #999;
}

.search-input:focus {
    border-color: var(--primary-color);
    background-color: #fff;
    box-shadow: 0 0 0 4px rgba(0, 136, 90, 0.1);
}

/* Search Results Header */
.search-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.search-results-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.search-results-header span {
    font-size: 14px;
    color: #999;
}

/* Search Results */
.search-results {
    margin-top: 0;
}

.search-results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.search-result-item {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.search-result-item:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    transform: translateY(-3px);
}

.search-result-img {
    width: 100%;
    position: relative;
    overflow: hidden;
    background: transparent;
}

.search-result-img::before {
    content: '';
    display: block;
    padding-top: 75%;
}

.search-result-img > * {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.search-result-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.search-result-info {
    padding: 16px;
}

.search-result-info h4 {
    color: #333;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.search-result-info p {
    color: #666;
    font-size: 13px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 12px;
}

.search-result-info .view-details {
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.search-result-info .view-details:hover {
    text-decoration: underline;
}

.search-no-results {
    text-align: center;
    padding: 40px 20px;
    color: #999;
}

.search-no-results svg {
    width: 48px;
    height: 48px;
    margin-bottom: 15px;
    color: #ccc;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 40px;
}

    .nav-list li a {
        font-size: 16px;
        font-weight: 500;
        color: var(--text-dark);
        position: relative;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }

        .nav-list li a:hover,
        .nav-list li a.active {
            color: var(--primary-color);
        }

            .nav-list li a.active::after,
            .nav-list li a:hover::after {
                content: '';
                position: absolute;
                bottom: -8px;
                left: 0;
                width: 100%;
                height: 2px;
                background-color: var(--primary-color);
            }

        .nav-list li a:active {
            opacity: 0.7;
            transition: opacity 0.1s;
        }

/* 全新简约Banner区 - 打破对称 */
.banner {
    margin-top: var(--header-height);
    width: 100%;
    padding: 60px 0 50px;
    background: url('/images/banner.png') 70% center/cover no-repeat;
    color: white;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.2) 100%);
    z-index: 1;
}

.banner > .container {
    position: relative;
    z-index: 2;
}

    .banner .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 50px;
        position: relative;
        z-index: 1;
    }

.banner-content {
    max-width: 480px;
    padding-left: 15px;
}

    .banner-content h1 {
        font-size: 32px;
        line-height: 1.2;
        margin-bottom: 18px;
        font-weight: 700;
        color: #ffffff;
        letter-spacing: -0.5px;
        opacity: 0;
        transform: translateX(-50px);
        animation: slideInLeft 0.8s ease forwards;
    }

    .banner-content p {
        font-size: 14px;
        margin-bottom: 25px;
        color: rgba(255, 255, 255, 0.85);
        line-height: 1.7;
        opacity: 0;
        transform: translateX(-50px);
        animation: slideInLeft 0.8s ease forwards 0.2s;
    }

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.banner-btn-group {
    display: flex;
    gap: 12px;
    opacity: 0;
    transform: translateY(30px);
    animation: slideInUp 0.8s ease forwards 0.4s;
}

@keyframes slideInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 调整Banner里的按钮 - 绿色主题 */
.banner .btn-primary {
    background-color: #FFB800;
    color: #1a1a1a;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 8px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

    .banner .btn-primary::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
        transition: left 0.6s ease;
    }

    .banner .btn-primary:hover {
        background-color: #ffc933;
        transform: translateY(-3px);
        box-shadow: 0 10px 30px rgba(255, 184, 0, 0.4);
    }

    .banner .btn-primary:hover::before {
        left: 100%;
    }

.banner .btn-accent {
    background-color: transparent;
    color: #FFB800;
    border: 2px solid #FFB800;
    padding: 12px 28px;
    border-radius: 8px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

    .banner .btn-accent::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 0;
        height: 100%;
        background: #FFB800;
        transition: width 0.4s ease;
        z-index: -1;
    }

    .banner .btn-accent:hover {
        color: #1a1a1a;
        border-color: #FFB800;
        transform: translateY(-3px);
        box-shadow: 0 10px 30px rgba(255, 184, 0, 0.3);
    }

    .banner .btn-accent:hover::before {
        width: 100%;
    }

.banner-img {
    flex-shrink: 0;
    margin-left: 60px;
    opacity: 0;
    transform: translateX(50px) scale(0.95);
    animation: slideInRight 0.8s ease forwards 0.3s;
}

@keyframes slideInRight {
    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

.banner-img video {
    max-height: 280px;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 20px 60px rgba(0, 136, 90, 0.4), 0 0 40px rgba(255, 184, 0, 0.2);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid rgba(255, 184, 0, 0.3);
}

.banner-img video:hover {
    transform: scale(1.03);
    box-shadow: 0 30px 80px rgba(0, 136, 90, 0.5), 0 0 60px rgba(255, 184, 0, 0.3);
    border-color: rgba(255, 184, 0, 0.5);
}

/* 公司核心数据区 - 打破均匀布局 */
.company-data {
    padding: 40px 0;
    background-color: var(--bg-light);
    background-image: url('/images/bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
}

.company-data::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(0, 136, 90, 0.08) 0%, 
        rgba(255, 255, 255, 0.85) 30%, 
        rgba(255, 255, 255, 0.85) 70%, 
        rgba(0, 136, 90, 0.08) 100%);
    z-index: 0;
}

.company-data::after {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 136, 90, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(255, 184, 0, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(0, 136, 90, 0.05) 0%, transparent 60%);
    animation: float-bg 20s ease-in-out infinite;
    z-index: 0;
}

@keyframes float-bg {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(2%, 2%) rotate(1deg); }
    50% { transform: translate(0, 4%) rotate(0deg); }
    75% { transform: translate(-2%, 2%) rotate(-1deg); }
}

.company-data .container {
    position: relative;
    z-index: 1;
}

.data-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    perspective: 1000px;
}

.data-item {
    text-align: center;
    padding: 20px 15px;
    background: linear-gradient(180deg, 
        rgba(255, 255, 255, 0.92) 0%, 
        rgba(255, 255, 255, 0.82) 100%);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 12px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: visible;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 
        0 10px 25px rgba(0, 136, 90, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    transform-style: preserve-3d;
    opacity: 0;
    transform: translateY(30px) rotateX(6deg);
    animation: slideIn 0.6s ease forwards;
}

.data-item:nth-child(1) { animation-delay: 0.1s; }
.data-item:nth-child(2) { animation-delay: 0.2s; }
.data-item:nth-child(3) { animation-delay: 0.3s; }
.data-item:nth-child(4) { animation-delay: 0.4s; }

@keyframes slideIn {
    to {
        opacity: 1;
        transform: translateY(0) rotateX(0);
    }
}

.data-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        var(--primary-color) 0%,
        #006B47 50%,
        var(--primary-color) 100%);
    background-size: 200% 200%;
    border-radius: 12px;
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.data-item::after {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(90deg,
        var(--primary-color),
        var(--secondary-color),
        var(--primary-color));
    background-size: 300% 100%;
    border-radius: 15px;
    z-index: -2;
    opacity: 0;
    animation: shimmer 4s linear infinite;
    filter: blur(8px);
}

@keyframes shimmer {
    0% { background-position: 0% 50%; }
    100% { background-position: 300% 50%; }
}

.data-item:hover {
    transform: translateY(-15px) scale(1.05);
    box-shadow: 
        0 35px 70px rgba(0, 136, 90, 0.25),
        inset 0 2px 0 rgba(255, 255, 255, 0.9);
}

.data-item:hover::before {
    opacity: 1;
    animation: gradient-shift 3s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.data-item:hover::after {
    opacity: 0.3;
}

.data-item:hover .value,
.data-item:hover .title {
    color: #fff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.data-item:hover .desc {
    color: rgba(255, 255, 255, 0.9);
}

.data-item:hover .title::after {
    width: 50px;
    background: rgba(255, 255, 255, 0.8);
}

.data-item .value {
    font-size: 42px;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 10px;
    letter-spacing: -2px;
    text-shadow: 
        0 2px 4px rgba(0, 136, 90, 0.2),
        0 4px 8px rgba(0, 136, 90, 0.1);
    position: relative;
    display: inline-block;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 4px 8px rgba(0, 136, 90, 0.15));
}

.data-item .value::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, 
        var(--primary-color), 
        var(--secondary-color), 
        var(--primary-color));
    background-size: 200% 100%;
    border-radius: 2px;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    animation: line-glow 2s ease-in-out infinite;
}

@keyframes line-glow {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

.data-item:hover .value::after {
    width: 80px;
}

.data-item .title {
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 8px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding-bottom: 10px;
}

.data-item .title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent, 
        var(--secondary-color), 
        transparent);
    transition: all 0.4s ease;
}

.data-item .desc {
    font-size: 12px;
    color: var(--text-light);
    line-height: 1.5;
    transition: all 0.6s ease;
    font-style: italic;
    opacity: 0.8;
    margin-top: 5px;
}

/* Floating particles effect */
.data-item .particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--secondary-color);
    border-radius: 50%;
    opacity: 0;
    animation: particle-float 4s ease-in-out infinite;
}

.data-item .particle:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; }
.data-item .particle:nth-child(2) { top: 40%; right: 15%; animation-delay: 1s; }
.data-item .particle:nth-child(3) { bottom: 30%; left: 20%; animation-delay: 2s; }

@keyframes particle-float {
    0%, 100% { opacity: 0; transform: translateY(0) scale(0); }
    50% { opacity: 0.6; transform: translateY(-20px) scale(1); }
}


@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* 通用板块间距 - 增加变化 */
.section {
    padding: 90px 0;
}

.section:nth-child(even) {
    padding: 80px 0;
}

/* 产品列表样式 - 差异化 */
.product-tabs {
    display: flex;
    justify-content: flex-start;
    gap: 12px;
    margin-bottom: 45px;
    flex-wrap: wrap;
    padding-left: 15px;
}

.tab-item {
    padding: 10px 22px;
    border-radius: 25px;
    background-color: transparent;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 14px;
    color: var(--text-gray);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

    .tab-item.active,
    .tab-item:hover {
        background-color: var(--text-dark);
        color: var(--white);
        border-color: var(--text-dark);
    }

    .tab-item:active {
        transform: scale(0.96);
    }

.product-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.product-item {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.3s ease;
    background-color: var(--white);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.product-item:nth-child(3n+2) {
    transform: translateY(15px);
}

.product-item:hover {
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    border-color: transparent;
}

.product-item:active {
    transform: scale(0.99);
}

.product-img {
    width: 100%;
    position: relative;
    overflow: hidden;
    background-color: transparent;
}

.product-img::before {
    content: '';
    display: block;
    padding-top: 66.67%;
}

.product-img > * {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.product-img:hover img {
    transform: scale(1.05);
}

.product-img .product-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-img:hover .product-overlay {
    opacity: 1;
}

.product-img:hover img {
    transform: scale(1.03);
}

.product-info {
    padding: 25px 22px;
}

.product-tag {
    display: inline-block;
    padding: 4px 10px;
    background-color: var(--bg-light);
    color: var(--text-gray);
    border-radius: 3px;
    font-size: 12px;
    margin-bottom: 12px;
    font-weight: 500;
}

.product-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-dark);
    line-height: 1.3;
}

.product-desc {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 15px;
    line-height: 1.6;
}

.product-params {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 15px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.product-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-pdf {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background-color: var(--secondary-color);
    color: var(--white);
    border-radius: 4px;
    font-weight: 500;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-pdf:hover {
    background-color: #0055AA;
    transform: translateY(-2px);
}

.btn-pdf:active {
    transform: scale(0.98);
    transition: transform 0.1s;
}

@media (max-width: 768px) {
    .product-actions {
        flex-direction: column;
        align-items: center;
    }

    .product-actions a {
        width: 100%;
        max-width: 280px;
        justify-content: center;
        text-align: center;
    }
}

/* 解决方案样式 - 自然融入 */
.solution-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.solution-item {
    padding: 35px 30px;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.solution-item:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.05);
    border-color: var(--primary-color);
}

    .solution-item h3 {
        font-size: 20px;
        color: var(--primary-color);
        margin-bottom: 12px;
        font-weight: 600;
    }

    .solution-item p {
        font-size: 14px;
        color: var(--text-gray);
        line-height: 1.7;
    }

/* ========================================
   瀑布流视频布局 - 高端科技感设计
   ======================================== */

/* 页面背景 - 激光光束渐变底纹 */
.cases-page-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -1;
    background: 
        radial-gradient(ellipse 80% 50% at 20% 40%, rgba(255,107,0,0.03) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(255,107,0,0.02) 0%, transparent 50%),
        linear-gradient(180deg, #fafbfc 0%, #f5f7fa 100%);
}

/* Cases 页面容器 */
.cases-section {
    padding: 0;
    background: #ffffff;
}

/* Pinterest 瀑布流容器 */
.case-container {
    width: 100%;
    min-height: calc(100vh - var(--header-height));
    padding: 20px;
    box-sizing: border-box;
    column-count: 3;
    column-gap: 16px;
}

/* 瀑布流骨架屏 */
.case-skeleton {
    column-count: 3;
    column-gap: 16px;
}

.case-skeleton .skeleton-card {
    break-inside: avoid;
    margin-bottom: 16px;
    border-radius: 16px;
    background: linear-gradient(180deg, #f0f0f0 0%, #e0e0e0 100%);
    animation: skeleton-shimmer 2s ease-in-out infinite;
    min-height: 300px;
}

/* 瀑布流卡片 - Pinterest 风格 */
.case-item {
    break-inside: avoid;
    margin-bottom: 16px;
    display: inline-block;
    width: 100%;
    cursor: pointer;
}

/* 卡片通用样式 - 点击弹出视频 */
.case-card {
    position: relative;
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    background: #1a1a2e;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

/* 媒体容器 */
.case-card-media {
    position: relative;
    width: 100%;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.case-card-poster {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.case-card-video-poster {
    background: #1a1a1a;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-card-video-poster.loaded {
    opacity: 1;
}

/* 文字嵌入视频区域 - 底部渐变 */
.case-card-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 60px 16px 16px;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.6) 50%, transparent 100%);
}

.case-card-tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(100, 180, 255, 0.25);
    color: rgba(100, 180, 255, 1);
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.case-card-title {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.3;
    margin-bottom: 6px;
}

.case-card-desc {
    font-size: 12px;
    color: rgba(255,255,255,0.8);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 动画 */
@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 关于我们页面样式 */
.about-banner {
    margin-top: var(--header-height);
    padding: 100px 0;
    background-image: url('/images/aboutbg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #ffffff;
    text-align: center;
    position: relative;
}

.about-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 77, 51, 0.4);
    z-index: 1;
}

.about-banner .container {
    position: relative;
    z-index: 2;
}

.about-banner h1 {
    font-size: 36px;
    margin-bottom: 15px;
    color: #ffffff;
    font-weight: 700;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.1s;
}

.about-banner p {
    font-size: 16px;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.95);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.3s;
}

/* Products 页面样式 */
.products-banner {
    margin-top: var(--header-height);
    padding: 100px 0;
    background-image: url('/images/productbg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #ffffff;
    text-align: center;
    position: relative;
}

.products-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 77, 51, 0.4);
    z-index: 1;
}

.products-banner .container {
    position: relative;
    z-index: 2;
}

.products-banner h1 {
    font-size: 36px;
    margin-bottom: 15px;
    color: #ffffff;
    font-weight: 700;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.1s;
}

.products-banner p {
    font-size: 16px;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.95);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.3s;
}

/* Contact 页面样式 */
.contact-banner {
    margin-top: var(--header-height);
    padding: 100px 0;
    background-image: url('/images/contactbg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #ffffff;
    text-align: center;
    position: relative;
}

.contact-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 77, 51, 0.4);
    z-index: 1;
}

.contact-banner .container {
    position: relative;
    z-index: 2;
}

.contact-banner h1 {
    font-size: 36px;
    margin-bottom: 15px;
    color: #ffffff;
    font-weight: 700;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.1s;
}

.contact-banner p {
    font-size: 16px;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.95);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.3s;
}

/* Solutions 页面样式 */
.solution-banner {
    margin-top: var(--header-height);
    padding: 100px 0;
    background-image: url('/images/solution.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #ffffff;
    text-align: center;
    position: relative;
}

.solution-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 77, 51, 0.4);
    z-index: 1;
}

.solution-banner .container {
    position: relative;
    z-index: 2;
}

.solution-banner h1 {
    font-size: 36px;
    margin-bottom: 15px;
    color: #ffffff;
    font-weight: 700;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.1s;
}

.solution-banner p {
    font-size: 16px;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.95);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.3s;
}

/* Cases 页面样式 */
.case-banner {
    margin-top: var(--header-height);
    padding: 100px 0;
    background-image: url('/images/casebg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #ffffff;
    text-align: center;
    position: relative;
}

.case-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 77, 51, 0.4);
    z-index: 1;
}

.case-banner .container {
    position: relative;
    z-index: 2;
}

.case-banner h1 {
    font-size: 36px;
    margin-bottom: 15px;
    color: #ffffff;
    font-weight: 700;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.1s;
}

.case-banner p {
    font-size: 16px;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.95);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.3s;
}

.about-content {
    padding: 100px 0;
}

.about-text h2 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.about-text p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 15px;
}

.about-advantage {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.advantage-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-item {
    padding: 35px 30px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

    .advantage-item h3 {
        font-size: 22px;
        color: var(--primary-color);
        margin-bottom: 15px;
    }

    .advantage-item p {
        font-size: 15px;
        color: var(--text-gray);
        line-height: 1.8;
    }

/* 联系我们页面样式 */
.contact-wrap {
    padding: 100px 0;
    margin-top: var(--header-height);
}

.contact-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 30px;
}

.contact-item {
    margin-bottom: 30px;
}

    .contact-item h3 {
        font-size: 18px;
        margin-bottom: 10px;
        color: var(--text-dark);
    }

    .contact-item p {
        font-size: 16px;
        color: var(--text-gray);
        line-height: 1.8;
    }

.contact-form {
    padding: 40px 35px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

    .contact-form h3 {
        font-size: 24px;
        margin-bottom: 30px;
        color: var(--primary-color);
    }

.form-group {
    margin-bottom: 20px;
}

    .form-group label {
        display: block;
        margin-bottom: 8px;
        font-weight: 500;
        color: var(--text-dark);
    }
    
    .form-group label .required {
        color: #e53935;
        margin-left: 2px;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        width: 100%;
        padding: 12px 15px;
        border: 1px solid var(--border-color);
        border-radius: 4px;
        font-size: 15px;
        transition: all 0.3s ease;
    }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary-color);
        }

    .form-group textarea {
        resize: vertical;
        min-height: 120px;
    }

.submit-btn {
    width: 100%;
    padding: 14px;
    font-size: 16px;
}

/* 滚动加载动画 */
.scroll-animate {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-animate-visible {
    opacity: 1;
    transform: translateY(0);
}

.section.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
}

.section.scroll-animate-visible {
    opacity: 1;
    transform: translateY(0);
}

.company-data.scroll-animate {
    opacity: 0;
    transform: scale(0.95);
}

.company-data.scroll-animate-visible {
    opacity: 1;
    transform: scale(1);
}

.product-card.scroll-animate,
.solution-card.scroll-animate,
.case-item.scroll-animate,
.download-card.scroll-animate {
    opacity: 0;
    transform: translateY(30px) scale(0.98);
}

.product-card.scroll-animate-visible,
.solution-card.scroll-animate-visible,
.case-item.scroll-animate-visible,
.download-card.scroll-animate-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Loading skeleton for scroll animation */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.scroll-animate::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: translateX(-100%);
    animation: shimmer 1.5s ease-in-out infinite;
    pointer-events: none;
}

.scroll-animate-visible::before {
    animation: shimmer 0.5s ease-out forwards;
}

/* 页脚样式 - TED风格黑色主题 */
.footer {
    background-color: #000000;
    color: rgba(255,255,255,0.8);
    padding: 60px 0 30px;
}

.footer-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col {
    position: relative;
}

.footer-col::before {
    content: '';
    position: absolute;
    top: -60px;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
}

.footer-col:first-child::before {
    display: none;
}

.footer-col h3,
.footer-title {
    color: #ffffff;
    font-size: 14px;
    margin-bottom: 20px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.footer-col p {
    line-height: 1.6;
    margin-bottom: 15px;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col ul li {
    margin-bottom: 0;
}

.footer-col ul li a {
    color: rgba(255,255,255,0.7);
    font-size: 13px;
    transition: all 0.2s ease;
    display: inline-block;
}

.footer-col ul li a:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.footer-col ul li a:active {
    opacity: 0.7;
}

.footer-social {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.7);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.copyright {
    font-size: 12px;
    color: rgba(255,255,255,0.5);
    margin: 0;
}

.company-info {
    font-size: 11px;
    color: rgba(255,255,255,0.4);
    margin: 5px 0 0 0;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    font-size: 12px;
    color: rgba(255,255,255,0.5);
    transition: color 0.2s ease;
}

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

/* ---------------------- 移动端菜单 ---------------------- */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
    z-index: 1001;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-btn:active span {
    opacity: 0.7;
    transition: opacity 0.1s;
}

.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    max-width: 80%;
    height: 100%;
    background-color: var(--white);
    z-index: 1999;
    transition: right 0.3s ease;
    overflow-y: auto;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-close {
    font-size: 32px;
    cursor: pointer;
    color: var(--text-gray);
    transition: color 0.3s ease;
}

.mobile-nav-close:hover {
    color: var(--primary-color);
}

.mobile-nav-list {
    padding: 0;
}

.mobile-nav-list li {
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-list li a {
    display: block;
    padding: 15px 20px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-dark);
    transition: all 0.3s ease;
    -webkit-tap-highlight-color: transparent;
}

.mobile-nav-list li a:hover,
.mobile-nav-list li a.active {
    background-color: var(--bg-light);
    color: var(--primary-color);
    padding-left: 25px;
}

.mobile-nav-list li a:active {
    background-color: var(--bg-light);
    opacity: 0.8;
}

.mobile-nav-contact {
    padding: 20px;
    background-color: var(--bg-light);
    margin-top: 20px;
}

.mobile-nav-contact p {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 10px;
}

/* Body scroll lock when menu is open */
body.menu-open {
    overflow: hidden;
}

/* 响应式适配 */
@media (max-width: 992px) {
    .nav-list {
        gap: 20px;
    }

    .banner {
        height: auto;
        padding: 50px 0;
    }

        .banner .container {
            flex-direction: column;
            text-align: center;
        }

    .banner-content {
        max-width: 100%;
        margin-bottom: 30px;
        padding-left: 0;
    }

        .banner-content h1 {
            font-size: 28px;
            animation-delay: 0.1s;
        }

        .banner-content p {
            animation-delay: 0.2s;
        }

    .banner-btn-group {
        justify-content: center;
        animation-delay: 0.3s;
    }

    .banner-img {
        animation-delay: 0.2s;
    }

        .banner-img video {
            max-height: 220px;
        }

    .data-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .product-list {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Pinterest 瀑布流平板响应式 */
    .case-container {
        padding: 20px 15px;
        column-count: 2 !important;
    }

    .case-skeleton {
        column-count: 2 !important;
    }

    .case-card-info {
        padding: 50px 14px 14px;
    }

    .case-card-tag {
        font-size: 10px;
        padding: 3px 9px;
        margin-bottom: 6px;
    }

    .case-card-title {
        font-size: 15px;
        -webkit-line-clamp: 1;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .case-card-desc {
        font-size: 11px;
        -webkit-line-clamp: 2;
    }

    .case-card-media {
        aspect-ratio: 16/10;
    }

    .case-name {
        font-size: 16px;
    }

    .case-desc {
        font-size: 12px;
    }

    .solution-list {
        grid-template-columns: 1fr;
    }

    .footer-row {
        grid-template-columns: 1fr 1fr;
    }

    .contact-row {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    .nav-list {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .banner {
        padding: 35px 0;
    }

    .banner-content h1 {
        font-size: 24px;
    }

    .banner-content p {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .banner-btn-group {
        flex-direction: column;
        gap: 10px;
    }

        .banner-btn-group a {
            padding: 10px 24px;
            font-size: 14px;
        }

    .banner-img video {
        max-height: 180px;
    }

    .section-title h2 {
        font-size: 28px;
    }

    .section-title p {
        font-size: 14px;
    }

    .section {
        padding: 60px 0;
    }

    .data-list,
    .product-list {
        grid-template-columns: 1fr;
    }

    /* Pinterest 瀑布流响应式 */
    .case-container {
        padding: 15px 10px;
        column-count: 2 !important;
    }

    .case-skeleton {
        column-count: 2 !important;
    }

    .cases-section {
        padding: 0;
    }

    .case-name {
        font-size: 15px;
    }

    .advantage-list {
        grid-template-columns: 1fr;
    }

    .footer-row {
        grid-template-columns: 1fr;
    }

    .banner-btn-group {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .banner-btn-group a {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

    .company-data {
        padding: 50px 0;
    }

    .data-item {
        padding: 20px 15px;
    }

    .data-item .value {
        font-size: 32px;
    }

    .product-tabs {
        gap: 10px;
    }

    .tab-item {
        padding: 8px 16px;
        font-size: 14px;
    }

    .product-item,
    .case-item {
        margin-bottom: 20px;
    }

    .solution-list {
        gap: 20px;
    }

    .solution-item {
        padding: 25px 20px;
    }

    .solution-item h3 {
        font-size: 20px;
    }

    .contact-wrap {
        padding: 60px 0;
    }

    .contact-row {
        gap: 30px;
    }

    .contact-info h2 {
        font-size: 24px;
    }

    .contact-form {
        padding: 25px 20px;
    }

    .footer {
        padding: 40px 0 15px;
    }

    .footer-col {
        margin-bottom: 25px;
    }

    .footer-col h3,
    .footer-title {
        font-size: 18px;
        margin-bottom: 15px;
    }

    .about-banner,
    .products-banner,
    .contact-banner,
    .solution-banner,
    .case-banner {
        padding: 70px 0;
    }

    .about-banner h1,
    .products-banner h1,
    .contact-banner h1,
    .solution-banner h1,
    .case-banner h1 {
        font-size: 30px;
        animation-delay: 0.05s;
    }

    .about-banner p,
    .products-banner p,
    .contact-banner p,
    .solution-banner p,
    .case-banner p {
        font-size: 15px;
        animation-delay: 0.15s;
    }

    .about-content {
        padding: 60px 0;
    }

    .about-text h2 {
        font-size: 24px;
    }

    .about-text p {
        font-size: 15px;
    }

    .advantage-item {
        padding: 25px 20px;
    }

    .advantage-item h3 {
        font-size: 18px;
    }

    .advantage-item p {
        font-size: 14px;
    }

    .catalog-grid {
        display: grid !important;
        grid-template-columns: repeat(4, 1fr) !important;
        gap: 30px;
        margin-top: 40px;
        max-width: 1200px;
        margin-left: auto;
        margin-right: auto;
    }

    .catalog-item {
        background-color: var(--white);
        padding: 30px 25px;
        border-radius: 12px;
        text-align: center;
        box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        transition: all 0.3s ease;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .catalog-item:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    }

    .catalog-icon {
        font-size: 48px;
        margin-bottom: 20px;
    }

    .catalog-item h3 {
        font-size: 20px;
        color: var(--primary-color);
        margin-bottom: 10px;
        font-weight: 600;
    }

    .catalog-item p {
        font-size: 14px;
        color: var(--text-gray);
        margin-bottom: 20px;
        line-height: 1.6;
    }

    .catalog-item .btn-primary {
        width: 100%;
        max-width: 200px;
        text-align: center;
    }

    @media (max-width: 1200px) {
        .catalog-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 768px) {
        .catalog-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .catalog-item {
            padding: 20px 15px;
        }

        .catalog-icon {
            font-size: 36px;
            margin-bottom: 15px;
        }

        .catalog-item h3 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .catalog-item p {
            font-size: 12px;
            margin-bottom: 15px;
        }

        .catalog-item .btn-primary {
            padding: 10px 20px;
            font-size: 14px;
        }
    }

    @media (max-width: 480px) {
        .catalog-grid {
            grid-template-columns: 1fr;
        }
        
        /* 移动端案例卡片优化 - 只显示标题 */
        .case-item {
            margin-bottom: 12px;
        }
        
        .case-card-info {
            padding: 50px 12px 12px;
        }
        
        .case-card-tag {
            font-size: 9px;
            padding: 3px 8px;
            margin-bottom: 6px;
        }
        
        .case-card-title {
            font-size: 14px;
            margin-bottom: 0;
            -webkit-line-clamp: 1;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        
        .case-card-desc {
            display: none;
        }
        
        .case-card-media {
            aspect-ratio: 16/9;
        }
    }
}

@media (max-width: 480px) {
    .catalog-grid {
        grid-template-columns: 1fr;
    }

    .about-banner,
    .products-banner,
    .contact-banner,
    .solution-banner,
    .case-banner {
        padding: 50px 0;
    }

    .about-banner h1,
    .products-banner h1,
    .contact-banner h1,
    .solution-banner h1,
    .case-banner h1 {
        font-size: 26px;
        animation-delay: 0.05s;
    }

    .about-banner p,
    .products-banner p,
    .contact-banner p,
    .solution-banner p,
    .case-banner p {
        font-size: 14px;
        animation-delay: 0.15s;
    }
}

/* ---------------------- 全局字体颜色优化 ---------------------- */
body {
    color: var(--text-gray);
}

/* 所有标题统一用深灰绿，更柔和 */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-dark);
}

/* 优化导航栏文字 */
.nav-list li a {
    color: var(--text-gray);
}

    .nav-list li a:hover,
    .nav-list li a.active {
        color: var(--primary-color);
    }

/* 优化按钮文字 */
.btn-primary, .btn-accent {
    color: var(--white);
}

/* 优化卡片背景，更简约 */
.data-item, .product-item, .solution-item, .case-item, .contact-form {
    background-color: var(--bg-white);
    border-color: var(--border-color);
}

/* 优化页脚，用浅绿深灰，替代原来的纯黑 */
.footer {
    background-color: #0A2019; /* 深绿灰，比纯黑柔和 */
    color: rgba(255,255,255,0.75);
}

.footer-col h3,
.footer-title {
    color: var(--white);
}

/* ==================== 骨架屏 & 懒加载样式 ==================== */

/* 骨架屏动画 */
@keyframes skeleton-pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

.skeleton-line,
.skeleton-image,
.skeleton-text,
.skeleton-card {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
    border-radius: 4px;
}

/* 骨架屏行 */
.skeleton-row td {
    padding: 15px 10px;
}

.skeleton-line {
    height: 16px;
    width: 80%;
}

.skeleton-image {
    height: 60px;
    width: 60px;
    border-radius: 8px;
}

.skeleton-text {
    height: 14px;
    margin: 8px 0;
}

.skeleton-text.short {
    width: 40%;
}

.skeleton-text.medium {
    width: 60%;
}

/* 骨架屏卡片 */
.skeleton-card {
    padding: 20px;
    margin: 10px;
    border-radius: 8px;
    min-height: 200px;
}

.skeleton-card .skeleton-image {
    height: 120px;
    width: 100%;
    margin-bottom: 15px;
}

/* 骨架屏淡出 */
.fade-out {
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* 懒加载图片 */
img[data-src] {
    opacity: 0;
    transition: opacity 0.3s ease;
}

img.loaded {
    opacity: 1;
}

/* 内容淡入动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.5s ease forwards;
}

/* 交错动画延迟 - 数据多时启用 */
.stagger-item:nth-child(1) { animation-delay: 0ms; }
.stagger-item:nth-child(2) { animation-delay: 50ms; }
.stagger-item:nth-child(3) { animation-delay: 100ms; }
.stagger-item:nth-child(4) { animation-delay: 150ms; }
.stagger-item:nth-child(5) { animation-delay: 200ms; }
.stagger-item:nth-child(6) { animation-delay: 250ms; }
.stagger-item:nth-child(7) { animation-delay: 300ms; }
.stagger-item:nth-child(8) { animation-delay: 350ms; }
.stagger-item:nth-child(9) { animation-delay: 400ms; }
.stagger-item:nth-child(10) { animation-delay: 450ms; }

/* 产品网格骨架屏 */
.products-skeleton {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    padding: 20px 0;
}

.products-skeleton .skeleton-card {
    min-height: 320px;
}

/* 案例网格骨架屏 */
.cases-skeleton {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
    padding: 20px 0;
}

/* 放射状布局骨架屏 */
.case-skeleton {
    position: relative;
    width: 100%;
    min-height: 800px;
}

.case-skeleton .skeleton-card {
    border-radius: 20px;
    background: linear-gradient(180deg, #f5f7fa 0%, #ffffff 100%);
    animation: skeleton-shimmer 2s ease-in-out infinite;
}

@keyframes skeleton-shimmer {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

/* 解决方案骨架屏 */
.solutions-skeleton {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 136, 90, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 占位内容 */
.content-placeholder {
    opacity: 0;
    pointer-events: none;
}

.content-placeholder.visible {
    opacity: 1;
    pointer-events: auto;
}

/* Downloads Section 美化样式 */
.downloads-section {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.download-card {
    background: var(--white);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.download-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.download-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 136, 90, 0.15);
    border-color: var(--primary-color);
}

.download-card:hover::before {
    transform: scaleX(1);
}

.download-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(0, 136, 90, 0.1) 0%, rgba(255, 184, 0, 0.1) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
}

.download-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.download-desc {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 20px;
    line-height: 1.5;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.25s ease;
}

.download-btn:hover {
    background: #006B47;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 136, 90, 0.3);
}

.download-btn svg {
    width: 18px;
    height: 18px;
}

.download-card.loading {
    pointer-events: none;
    opacity: 0.6;
}

@media (max-width: 768px) {
    .downloads-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 16px;
    }

    .download-card {
        padding: 24px 16px;
    }

    .download-icon {
        width: 60px;
        height: 60px;
        font-size: 28px;
    }
}

/* 视频弹出窗口 */
.video-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.video-modal.active {
    display: flex;
}

.video-modal-content {
    position: relative;
    width: 90%;
    max-width: 1000px;
    background: #1a1a2e;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.video-modal-content video,
.modal-video-container video {
    width: 100%;
    display: block;
    background: #000;
}

.modal-video-container {
    position: relative;
    width: 100%;
    background: #000;
}

/* HEVC Loading Overlay */
.hevc-player-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.hevc-loading {
    text-align: center;
    color: #fff;
}

.hevc-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: hevc-spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes hevc-spin {
    to { transform: rotate(360deg); }
}

.video-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.6);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
    z-index: 10;
}

.video-modal-close:hover {
    background: rgba(0, 0, 0, 0.8);
}

.video-modal-info {
    padding: 20px;
    background: #1a1a2e;
}

.video-modal-category {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(100, 180, 255, 0.2);
    color: rgba(100, 180, 255, 1);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.video-modal-title {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin: 0 0 8px 0;
}

.video-modal-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    line-height: 1.5;
}

.product-faq-section {
    display: none;
}

.trust-section {
    display: none;
}