/* Banner 样式 */
        .banner {
            width: 100%;
            height: 50vh;
            /* background-image 由PHP动态设置 */
            background-size: cover;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.3);
        }

        .banner h1 {
            position: relative;
            font-size: 48px;
            color: #333;
            text-transform: uppercase;
            font-weight: 900;
            letter-spacing: 2px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
            transform: rotate(-3deg);
        }

        /* 面包屑导航 */
        .mbx {
            font-size: 1rem;
            color: #4d4d4d;
            font-family: Arial, sans-serif;
            background: #eee;
            padding: 1.5rem 0;
            margin-bottom: 2rem;
        }

        .mbx span {
            color: var(--primary-orange);
            font-weight: bold;
        }

        /* --- 2. 顶部导航 (Header) --- */
        .top-bar {
            background: #111;
            color: #ccc;
            font-size: 13px;
            padding: 10px 0;
            border-bottom: 1px solid #222;
        }

        .top-bar .container {
            display: flex;
            justify-content: space-between;
            width: 100%;
        }

        :root {
            --primary-orange: #ff6600;
            --primary-hover: #e65c00;
            --text-dark: #1a1a1a;
            --text-gray: #666;
            --bg-light: #f8f9fa;
            --container-width: 1470px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }


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

        ul {
            list-style: none;
        }

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

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


        header {
            background: #fff;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .logo {
            font-size: 28px;
            font-weight: 800;
            font-family: 'Poppins', sans-serif;
            display: flex;
            align-items: center;
            color: #000;
            letter-spacing: -1px;
        }

        .logo i {
            color: var(--primary-orange);
            margin-right: 10px;
            font-size: 32px;
        }

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

        nav a {
            font-weight: 600;
            font-size: 15px;
            text-transform: uppercase;
            color: #333;
            position: relative;
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-orange);
            transition: 0.3s;
        }

        nav a:hover::after,
        nav a.active::after {
            width: 100%;
        }

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

        /* 定义自定义颜色 */


        /* Tailwind 自定义扩展 */
        .bg-dilon-orange {
            background-color: var(--dilon-orange);
        }

        .text-dilon-orange {
            color: var(--dilon-orange);
        }

        .border-dilon-orange {
            border-color: var(--dilon-orange);
        }

        .bg-dilon-dark {
            background-color: var(--dilon-dark);
        }


        /* 用于占位符图片的灰色背景 */
        .placeholder-img {
            background-color: #ddd;
            display: flex;
            justify-content: center;
            align-items: center;
            color: #999;
            font-size: 12px;
        }

        /* 自定义样式还原 */
        :root {
            --dilon-orange: #F36F21;
        }

        /* 证书图片容器比例 */
        .cert-img-container {
            height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            padding: 20px;
        }

        /* 底部文字区域的基础样式 */
        .cert-footer {
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s ease;
            background-color: #fff;
            color: #333;
        }

        /* 悬浮时的橙色切换效果 */
        .cert-card:hover .cert-footer {
            background-color: var(--dilon-orange);
            color: #fff;
        }

        /* 轮播容器隐藏滚动条 */
        .slider-container {
            overflow: hidden;
            position: relative;
        }

        .slider-track {
            display: flex;
            transition: transform 0.5s ease-in-out;
        }

        .slide {
            flex: 0 0 25%;
            /* 默认一行4个 */
            padding: 10px;
        }

        @media (max-width: 1024px) {
            .slide {
                flex: 0 0 50%;
            }
        }

        @media (max-width: 640px) {
            .slide {
                flex: 0 0 100%;
            }
        }

        .btn {
            display: inline-block;
            padding: 12px 30px;
            background: var(--primary-orange);
            color: #fff;
            font-weight: 600;
            border-radius: 4px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            font-size: 14px;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
            transition: var(--transition);
        }

        /* Read More 垂直线 */
        .read-more-line {
            border-left: 2px solid #EBD5B3;
            height: 40px;
            margin-left: 20px;
            padding-left: 20px;
        }

        /* --- 9. Map & Callback --- */
        .map-section {
            position: relative;
            height: 550px;
            background: url('/img/map.jpg') center/cover;
        }

        .contact-form-wrapper {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: rgba(255, 255, 255, 0.95);
            padding: 50px;
            width: 450px;
            border-radius: 10px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
            text-align: center;
            backdrop-filter: blur(5px);
        }

        .contact-form-wrapper h3 {
            margin-bottom: 25px;
            font-size: 24px;
        }

        .form-group {
            margin-bottom: 15px;
        }

        .form-input {
            width: 100%;
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            background: #f9f9f9;
            font-family: inherit;
            font-size: 14px;
            outline: none;
            transition: 0.3s;
        }

        .form-input:focus {
            border-color: var(--primary-orange);
            background: #fff;
        }

        .submit-btn {
            background: #111;
            color: #fff;
            width: 100%;
            padding: 15px;
            border: none;
            cursor: pointer;
            font-weight: 700;
            text-transform: uppercase;
            border-radius: 5px;
            transition: 0.3s;
        }

        .submit-btn:hover {
            background: var(--primary-orange);
        }

        /* --- 10. Footer --- */
        footer {
            background: #111;
            color: #fff;
            padding: 80px 0 30px;
            font-size: 14px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 100px;
            padding-bottom: 50px;
            /* border-bottom: 1px solid #333; */
        }

        .footer-col h4 {
            color: #fff;
            margin-bottom: 25px;
            font-size: 18px;
            position: relative;
            display: inline-block;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 30px;
            height: 2px;
            background: var(--primary-orange);
        }
        .footer-col:last-child {
            text-align: left;
            margin-left: auto;
            max-width: 500px;
            padding-left: 250px;
        }

        .footer-col:last-child h4 {
            display: inline-block;
        }

        .footer-col:last-child .footer-info-item {
            justify-content: flex-start;
            align-items: flex-start;
        }

        .footer-col:last-child .footer-info-item span {
            word-wrap: break-word;
            word-break: break-word;
            white-space: normal;
        }

        .footer-info-item {
            display: flex;
            margin-bottom: 15px;
            gap: 15px;
            color: #aaa;
        }

        .footer-info-item i {
            color: var(--primary-orange);
            margin-top: 4px;
        }

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

        .social-icons a {
            width: 36px;
            height: 36px;
            background: #333;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: 0.3s;
            color: #fff;
        }

        .btn:hover {
            background: var(--primary-hover);
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 102, 0, 0.4);
            color: #fff;
            border: none;
        }

        .social-icons a:hover {
            background: var(--primary-orange);
            transform: rotate(360deg);
        }

        .copyright {
            text-align: center;
            padding-top: 30px;
            color: #666;
            font-size: 13px;
        }
        
        /* 下拉菜单样式 */
        .dropdown {
            position: relative;
        }

        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            background: #fff;
            min-width: 180px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            border-radius: 4px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all 0.3s ease;
            z-index: 1000;
            border-top: 3px solid var(--primary-orange);
        }

        .dropdown:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-menu a {
            display: block;
            padding: 12px 20px;
            color: #333;
            font-size: 14px;
            font-weight: 500;
            text-transform: none;
            border-bottom: 1px solid #f0f0f0;
            transition: all 0.3s ease;
        }

        .dropdown-menu a:last-child {
            border-bottom: none;
        }

        .dropdown-menu a:hover {
            background: #f8f9fa;
            color: var(--primary-orange);
            padding-left: 25px;
        }

        .dropdown-menu a::after {
            display: none;
        }
    


/* 悬浮侧边栏 */
.float-sidebar {
    position: fixed;
    right: 0;
    top: 40%;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.float-btn {
    width: 45px;
    height: 45px;
    background-color: #ff6600;
    color: #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    margin-right: 10px;
    transition: transform 0.3s ease;
}

.float-btn:hover {
    transform: scale(1.1);
}

/* Footer social media icon hover effect */
footer a:hover {
    color: #ff6600 !important;
}

/* About1 页面特定样式 */
body {
    background: #fff;
    font-family: 'Open Sans', sans-serif;
    color: #4a5568;
}

/* 主内容区域 */
section {
    padding: 4rem 0;
}

section .container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1rem;
}

/* 两列布局 */
.about-two-col {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    align-items: flex-start;
}

@media (min-width: 1024px) {
    .about-two-col {
        flex-direction: row;
    }
    
    .about-col-left,
    .about-col-right {
        flex: 1;
    }
}

.about-col-left {
    position: relative;
}

.about-img-wrapper {
    padding: 0.75rem;
    background: #fff;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
    border: 1px solid #f0f0f0;
}

.about-img-wrapper img {
    width: 100%;
    height: auto;
}

.about-col-right h4 {
    color: #F36F21;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.about-col-right h2 {
    font-size: 1.875rem;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 2rem;
}

.about-col-right p {
    color: #718096;
    font-size: 0.875rem;
    line-height: 1.8;
    text-align: justify;
}

/* 公司荣誉区域 */
.company-honor-section {
    background: #f8f8f8;
    padding: 4rem 0;
}

.honor-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

@media (min-width: 1024px) {
    .honor-container {
        flex-direction: row;
    }
}

.honor-left {
    flex: 0 0 33.333%;
    border-left: 3px solid var(--primary-orange);
    padding-left: 1.5rem;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.honor-left span {
    color: var(--primary-orange);
    font-weight: 700;
    font-size: 0.875rem;
}

.honor-left h3 {
    font-size: 1.875rem;
    font-weight: 700;
    color: #1a202c;
    margin-top: 0.5rem;
    margin-bottom: 1rem;
}

.honor-left p {
    color: #a0aec0;
    font-size: 0.75rem;
    line-height: 1.5;
}

.honor-right {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem 2rem;
}

@media (min-width: 768px) {
    .honor-right {
        grid-template-columns: repeat(2, 1fr);
    }
}

.honor-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.honor-item i {
    color: var(--primary-orange);
    margin-top: 0.25rem;
}

.honor-item p {
    font-size: 0.875rem;
    color: #4a5568;
    line-height: 1.5;
}

/* CTA 区域 */
.cta-section {
    background: var(--primary-orange);
    padding: 3.5rem 1rem;
    text-align: center;
    color: #fff;
}

.cta-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.4;
    color: #fff;
}

@media (min-width: 768px) {
    .cta-section h2 {
        font-size: 1.625rem;
    }
}

.cta-section p {
    font-size: 0.75rem;
    opacity: 0.8;
    margin-bottom: 2rem;
}

.cta-btn {
    background: #fff;
    color: var(--primary-orange);
    font-size: 0.875rem;
    font-weight: 700;
    padding: 0.75rem 2.5rem;
    border-radius: 0.125rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.cta-btn:hover {
    background: #f7fafc;
}

/* 证书轮播区域 */
.cert-section {
    padding: 5rem 1rem;
    max-width: 1280px;
    margin: 0 auto;
}

.cert-header {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 3rem;
}

@media (min-width: 768px) {
    .cert-header {
        flex-direction: row;
        align-items: flex-end;
    }
}

.cert-header-left {
    max-width: 48rem;
}

.cert-header-left h4 {
    color: #F36F21;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.cert-header-left h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.cert-header-left p {
    color: #a0aec0;
    font-size: 0.875rem;
    line-height: 1.5;
}

.cert-header-right {
    display: none;
}

@media (min-width: 768px) {
    .cert-header-right {
        display: flex;
        align-items: center;
    }
}

.cert-header-right a {
    color: #F36F21;
    font-weight: 700;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
}

.cert-header-right a span {
    margin-left: 0.5rem;
    transition: transform 0.3s;
}

.cert-header-right a:hover span {
    transform: translateX(0.25rem);
}

.slider-container {
    overflow: hidden;
    position: relative;
}

.slider-track {
    display: flex;
    transition: transform 0.5s ease;
}

.slide {
    flex: 0 0 25%;
    padding: 0 0.5rem;
}

@media (max-width: 1024px) {
    .slide {
        flex: 0 0 50%;
    }
}

@media (max-width: 640px) {
    .slide {
        flex: 0 0 100%;
    }
}

.cert-card {
    border: 1px solid #f0f0f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    background: #fff;
    cursor: pointer;
    transition: box-shadow 0.3s;
}

.cert-card:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.cert-img-container {
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: #fafafa;
}

.cert-img-container img {
    max-height: 100%;
    object-fit: contain;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.cert-footer {
    padding: 1rem;
    text-align: center;
    font-size: 0.875rem;
    color: #4a5568;
    border-top: 1px solid #f0f0f0;
}

/* 轮播小圆点 */
.cert-dots {
    display: flex;
    justify-content: center;
    margin-top: 2.5rem;
    gap: 0.5rem;
}

.cert-dot {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s;
    background: #d1d5db;
}

.cert-dot.active {
    background: #F36F21;
}

/* 视频模态框 */
#videoModal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.9);
    transition: opacity 0.3s;
}

#videoModal.show {
    display: flex;
}

#videoModal button {
    position: absolute;
    top: 2.5rem;
    right: 2.5rem;
    color: #fff;
    font-size: 2.25rem;
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.3s;
}

#videoModal button:hover {
    color: #F36F21;
}

.video-wrapper {
    width: 100%;
    max-width: 56rem;
    padding: 0 1rem;
}

.video-container {
    position: relative;
    padding-top: 56.25%;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}