@charset "utf-8";
/**
* [XIAOHEI] Copyright (c) 2010-2066
* dz-CSS-qq:290948585
*/
*{box-sizing:border-box;}
p{padding:0;margin:0}
/* 为内容添加顶部padding，避免被固定导航栏遮挡 */
        .content-wrapper {

        }

        /* ========== 可持续发展页面原有样式 ========== */
        /* 头部样式 - 改为全屏显示 */
        .sustainability-header {
            background: linear-gradient(135deg, var(--eco-green) 0%, var(--dark-green) 100%);
            color: white;
            padding: 3rem 0;
            text-align: center;
            border-radius: 0;
            margin-bottom: 2rem;
            position: relative;
            overflow: hidden;
            /* 改为全屏宽度 */
            width: 100%;
            /* margin-left: calc(-50vw + 50%); */
        }

        .sustainability-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.1);
            z-index: 1;
        }

        .sustainability-header .container {
            position: relative;
            z-index: 2;
        }

        .page-title {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: white;
        }

        .page-subtitle {
            font-size: 1.2rem;
            opacity: 0.95;
            max-width: 800px;
            margin: 0 auto;
            color: white;
        }

        a.back-home {
            display: inline-block;
            margin-top: 2rem;
            color: white;
            text-decoration: none;
            padding: 0.8rem 1.5rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-radius: 25px;
            transition: all 0.3s ease;
            background: rgba(255, 255, 255, 0.1);
        }

        .back-home:hover {
            background-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        /* 图片容器 - 直角ESC样式 */
        .image-grid-container {
            height: 500px;
            overflow: hidden;
            position: relative;
            margin-bottom: 4rem;
            /* border-radius: 8px; */
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
        }

        @media (max-width: 991px) {
            .image-grid-container {
                height: 450px;
            }
        }

        @media (max-width: 767px) {
            .image-grid-container {
                height: 350px;
            }
        }

        /* 三张大图容器 */
        .full-images-container {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }

        /* 单张大图 */
        .full-image {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0;
            transition: opacity 0.5s ease;
        }

        .full-image.active {
            opacity: 1;
        }

        /* 三张不同的整图 - 使用可持续发展主题图片 */
        .full-image-1 {
            background-image: url('develop/photo-1473341304170-971dccb5ac1e.avif');
        }

        .full-image-2 {
            background-image: url('develop/photo-1418065460487-3e41a6c84dc5.avif');
        }

        .full-image-3 {
            background-image: url('develop/photo-1490730141103-6cac27aaab94.avif');
        }

        /* 在整图上划分三个垂直选择区域 */
        .image-selector-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 20;
            pointer-events: none;
            display: flex;
        }

        .image-section {
            flex: 1;
            position: relative;
            /* cursor: pointer; */
            pointer-events: auto;
            border-left: 1px solid rgba(255, 255, 255, 0.3);
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .image-section:first-child {
            border-left: none;
        }

        @media (max-width: 767px) {
            .image-section {
                flex: none;
                height: 33.33%;
                border-left: none;
                border-top: 1px solid rgba(255, 255, 255, 0.3);
            }
            
            .image-section:first-child {
                border-top: none;
            }
        }

        /* 蓝色遮罩层 - 使用 #178ac3 颜色 */
        .blue-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(23, 138, 195, 0.85) 0%, rgba(23, 138, 195, 0.9) 100%);
            opacity: 0;
            transition: opacity 0.4s ease;
            z-index: 1;
        }

        .image-section:hover .blue-overlay {
            opacity: 1;
        }

        /* 区域内容容器 - 优化文字显示，确保不超出边框 */
        .section-content {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) translateY(30px);
            width: 85%; /* 增加宽度限制 */
            max-width: 380px; /* 增加最大宽度限制 */
            max-height: 85%; /* 限制最大高度 */
            padding: 15px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.4s ease;
            z-index: 2;
            pointer-events: none;
            text-align: center;
            overflow: hidden; /* 防止内容溢出 */
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .image-section:hover .section-content {
            opacity: 1;
            visibility: visible;
            transform: translate(-50%, -50%) translateY(0);
        }

        /* 内容图标 - 白色背景圆形 */
        .content-icon {
            width: 70px; /* 减小尺寸 */
            height: 70px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px; /* 减小下边距 */
            font-size: 28px; /* 减小图标大小 */
            color: #178ac3;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
            z-index: 3;
            position: relative;
            flex-shrink: 0; /* 防止图标被压缩 */
        }

        /* 内容标题 - 纯白色文字，无背景 */
        .content-title {
            font-size: 28px; /* 减小字体大小 */
            font-weight: 700;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 10px; /* 减小下边距 */
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
            letter-spacing: 0.5px;
            position: relative;
            z-index: 3;
        }

        @media (max-width: 991px) {
            .content-title {
                font-size: 24px; /* 进一步减小字体大小 */
            }
            
            .content-icon {
                width: 60px;
                height: 60px;
                font-size: 24px;
                margin-bottom: 12px;
            }
        }

        /* 内容副标题 - 纯白色文字，无背景 */
        .content-subtitle {
            font-size: 16px; /* 减小字体大小 */
            color: #fff;
            font-weight: 500;
            margin-bottom: 15px; /* 减小下边距 */
            opacity: 0.95;
            letter-spacing: 0.5px;
            position: relative;
            z-index: 3;
        }

        /* 内容文字 - 纯白色文字，无任何背景 */
        .content-text {
            font-size: 14px; /* 减小字体大小 */
            line-height: 1.6; /* 调整行高 */
            color: #fff;
            margin-bottom: 15px;
            opacity: 0.95;
            position: relative;
            z-index: 3;
            text-align: left;
            overflow: hidden; /* 防止溢出 */
        }

        .content-text p {
            margin-bottom: 8px; /* 减小段落下边距 */
        }

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

        /* 核心举措样式 - 优化文字颜色 */
        .content-actions {
            background-color: rgba(255, 255, 255, 0.2); /* 增加背景透明度以提高对比度 */
            border-radius: 8px;
            padding: 12px; /* 减小内边距 */
            margin-bottom: 15px; /* 减小下边距 */
            text-align: left;
            overflow: hidden; /* 防止内容溢出 */
            border: 1px solid rgba(255, 255, 255, 0.3); /* 添加边框增强可读性 */
        }

        /* 环境(E)核心举措标题 - 使用更亮的绿色 */
        .content-actions.e-env h4 {
            color: #2ecc71 !important; /* 使用更亮的绿色 */
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        }

        /* 社会(S)核心举措标题 - 使用更亮的蓝色 */
        .content-actions.s-soc h4 {
            color: #3498db !important; /* 使用更亮的蓝色 */
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        }

        /* 治理(G)核心举措标题 - 使用更亮的紫色 */
        .content-actions.g-gov h4 {
            color: #9b59b6 !important; /* 使用更亮的紫色 */
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        }

        .content-actions h4 {
            color: #fff;
            margin-bottom: 0.6rem; /* 减小下边距 */
            font-size: 16px; /* 减小字体大小 */
            font-weight: 600;
        }

        .content-actions ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        /* 优化核心举措列表项颜色 */
        .content-actions li {
            color: rgba(255, 255, 255, 0.95); /* 提高文字透明度，增加可读性 */
            margin-bottom: 0.4rem; /* 减小列表项下边距 */
            font-size: 13px; /* 减小字体大小 */
            padding-left: 1.2rem; /* 减小左内边距 */
            position: relative;
            line-height: 1.4; /* 调整行高 */
            font-weight: 500; /* 增加字体重量 */
        }

        .content-actions li:before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #fff; /* 保持对勾为白色 */
            font-weight: bold;
            font-size: 12px; /* 减小对勾大小 */
        }

        /* 底部标签 - 默认显示 */
        .section-label {
            position: absolute;
            bottom: 15px; /* 减小底部距离 */
            left: 50%;
            transform: translateX(-50%);
            color: white;
            font-size: 18px; /* 减小字体大小 */
            font-weight: 500;
            text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 8px; /* 减小间隙 */
            white-space: nowrap;
            opacity: 0.9;
            transition: all 0.4s ease;
            pointer-events: none;
        }

        /* 只在悬停时隐藏标签，而不是在激活状态时 */
        .image-section:hover .section-label {
            opacity: 0;
            visibility: hidden;
            transform: translateX(-50%) translateY(30px);
        }

        /* ESG框架标题样式 */
        .esg-title {
            text-align: center;
            margin-bottom: 3rem;
        }

        .esg-title h2 {
            font-size: 2rem;
            color: var(--dark-green);
            margin-bottom: 0.5rem;
        }

        .esg-title p {
            color: var(--medium-gray);
            font-size: 1.1rem;
        }

        /* 再生塑料平台模块 - 直角外部框架，增高 */
        .recycle-platform-module {
            background: linear-gradient(135deg, rgba(15, 118, 110, 0.95) 0%, rgba(19, 78, 74, 0.95) 100%);
            /* 外部框架直角 */
            border-radius: 0;
            padding: 70px 50px; /* 上下padding增大，使框架增高 */
            position: relative;
            overflow: hidden;
            /* border-radius: 8px; */
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
            margin: 3rem 0;
            min-height: 550px; /* 增高整体高度 */
            display: flex;
            align-items: center;
            border: none;
        }

        .recycle-platform-module::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('https://images.unsplash.com/photo-1542601906990-b4d3fb778b09?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') no-repeat center center;
            background-size: cover;
            opacity: 0.2;
            z-index: 1;
            filter: brightness(0.8);
        }

        .recycle-platform-module::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, 
                rgba(15, 118, 110, 0.95) 0%, 
                rgba(19, 78, 74, 0.92) 50%, 
                rgba(15, 118, 110, 0.90) 100%);
            z-index: 2;
        }

        .module-content {
            position: relative;
            z-index: 3;
            width: 100%;
            color: white;
        }

        /* 标题区域 - 调整文字大小和间距 */
        .module-header {
            display: flex;
            align-items: flex-start;
            gap: 22px;
            margin-bottom: 45px; /* 增大标题与数据之间的间距 */
        }

        .module-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--eco-green), #00A896);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 24px;
            flex-shrink: 0;
            box-shadow: var(--shadow-sm);
            margin-top: 5px;
        }

        .module-title h2 {
            font-size: 2.3rem; /* 标题稍增大 */
            font-weight: 800;
            margin-bottom: 15px;
            color: white;
            text-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
            line-height: 1.2;
        }

        .module-description {
            font-size: 1.1rem; /* 描述稍增大 */
            color: rgba(255, 255, 255, 0.95);
            line-height: 1.7;
            max-width: 850px;
        }

        /* 数据徽章网格 - 内部标签变小但保持比例 */
        .data-badges {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); /* 标签宽度减小 */
            gap: 25px;
            margin-top: 40px;
        }

        .data-badge {
            display: flex;
            flex-direction: column;
            align-items: center;
            background: rgba(255, 255, 255, 0.1);
            padding: 20px 16px; /* 内边距减小，标签变小 */
            /* 内部标签保持圆角 */
            border-radius: var(--radius-md);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition-base);
            text-align: center;
            min-height: 170px; /* 高度减小 */
            justify-content: center;
        }

        .data-badge:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
            border-color: rgba(255, 255, 255, 0.3);
        }

        .badge-icon {
            font-size: 1.7rem; /* 图标减小 */
            margin-bottom: 10px;
            color: var(--eco-green);
            transition: var(--transition);
        }

        .data-badge:hover .badge-icon {
            transform: scale(1.1);
        }

        .badge-number {
            font-size: 1.8rem; /* 数字减小 */
            font-weight: 800;
            color: white;
            line-height: 1;
            margin-bottom: 3px;
        }

        .badge-unit {
            font-size: 1.0rem; /* 单位减小 */
            font-weight: 600;
            color: rgba(255, 255, 255, 0.9);
            margin-left: 2px;
        }

        .badge-label {
            font-size: 0.92rem; /* 标签减小 */
            color: rgba(255, 255, 255, 0.95);
            margin-top: 8px;
            font-weight: 600;
            line-height: 1.3;
        }

        .badge-detail {
            font-size: 0.78rem; /* 详情减小 */
            color: rgba(255, 255, 255, 0.75);
            margin-top: 6px;
            line-height: 1.4;
            max-width: 160px;
        }

        /* 可持续发展装饰图标 - 调整位置和大小 */
        .decoration-icon {
            position: absolute;
            z-index: 2;
            color: rgba(255, 255, 255, 0.08);
            font-size: 8rem;
            pointer-events: none;
        }

        .decoration-icon.leaf {
            top: 25px;
            left: 25px;
            transform: rotate(-15deg);
        }

        .decoration-icon.recycle {
            bottom: 25px;
            right: 25px;
            transform: rotate(15deg);
        }

        /* 碳减排目标图片容器 - 直角 */
        .carbon-image-grid-container {
            height: 500px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            /* border-radius: 8px; */
            overflow: hidden;
            position: relative;
            margin-bottom: 30px;
        }

        @media (max-width: 991px) {
            .carbon-image-grid-container {
                height: 450px;
            }
        }

        @media (max-width: 767px) {
            .carbon-image-grid-container {
                height: 400px;
            }
        }

        /* 四张大图容器 */
        .carbon-full-images-container {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }

        /* 碳减排单张大图 */
        .carbon-full-image {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0;
            transition: opacity 0.5s ease;
        }

        .carbon-full-image.active {
            opacity: 1;
        }

        /* 四张不同的整图 - 环保主题图片 */
        .carbon-full-image-1 {
            background-image: url('develop/photo-1542601906990-b4d3fb778b09.avif?ixlib=rb-4.0.3&auto=format&fit=crop&w=1800&q=80');
        }

        .carbon-full-image-2 {
            background-image: url('develop/photo-1509316785289-025f5b846b35.avif?ixlib=rb-4.0.3&auto=format&fit=crop&w=1800&q=80');
        }

        .carbon-full-image-3 {
            background-image: url('develop/photo-1536939459926-301728717817.avif?ixlib=rb-4.0.3&auto=format&fit=crop&w=1800&q=80');
        }
        
        .carbon-full-image-4 {
            background-image: url('develop/photo-1542831371-d531d36971e6.avif?ixlib=rb-4.0.3&auto=format&fit=crop&w=1800&q=80');
        }

        /* 在整图上划分四个垂直选择区域 */
        .carbon-image-selector-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 20;
            pointer-events: none;
            display: flex;
        }

        .carbon-image-section {
            flex: 1;
            position: relative;
            /* cursor: pointer; */
            pointer-events: auto;
            border-left: 1px solid rgba(255, 255, 255, 0.3);
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .carbon-image-section:first-child {
            border-left: none;
        }

        @media (max-width: 767px) {
            .carbon-image-section {
                flex: none;
                height: 25%;
                border-left: none;
                border-top: 1px solid rgba(255, 255, 255, 0.3);
            }
            
            .carbon-image-section:first-child {
                border-top: none;
            }
        }

        /* 绿色遮罩层 - 使用可持续发展主题颜色 */
        .carbon-green-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.85) 0%, rgba(4, 120, 87, 0.9) 100%);
            opacity: 0;
            transition: opacity 0.4s ease;
            z-index: 1;
        }

        .carbon-image-section:hover .carbon-green-overlay {
            opacity: 1;
        }

        /* 区域内容容器 - 修改为居中 */
        .carbon-section-content {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) translateY(30px);
            width: 80%;
            max-width: 300px;
            padding: 0;
            opacity: 0;
            visibility: hidden;
            transition: all 0.4s ease;
            z-index: 2;
            pointer-events: none;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .carbon-image-section:hover .carbon-section-content {
            opacity: 1;
            visibility: visible;
            transform: translate(-50%, -50%) translateY(0);
        }

        /* 内容图标 - 白色背景圆形 */
        .carbon-content-icon {
            width: 70px;
            height: 70px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 28px;
            color: var(--dark-green);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
            z-index: 3;
            position: relative;
        }

        /* 内容标题 - 纯白色文字 */
        .carbon-content-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 8px;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
            letter-spacing: 0.5px;
            position: relative;
            z-index: 3;
            text-align: center;
        }
        
        /* 时间段标签 */
        .carbon-time-period {
            font-size: 14px;
            color: #fff;
            background-color: rgba(255, 255, 255, 0.2);
            padding: 4px 12px;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 15px;
            font-weight: 600;
            text-align: center;
        }

        /* 目标进度 - 修改为居中 */
        .carbon-goal-progress {
            background-color: rgba(255, 255, 255, 0.15);
            padding: 12px;
            border-radius: 8px;
            margin-bottom: 15px;
            text-align: center;
            width: 100%;
            max-width: 200px;
        }
        
        .carbon-goal-progress .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 5px;
            display: block;
            text-align: center;
        }
        
        .carbon-goal-progress .value {
            font-size: 24px; /* 增大字体使其更突出 */
            font-weight: 800;
            color: #fff;
            text-align: center;
            display: block;
        }

        /* 内容文字 - 纯白色文字，修改为居中 */
        .carbon-content-text {
            font-size: 14px;
            line-height: 1.6;
            color: #fff;
            margin-bottom: 20px;
            opacity: 0.95;
            position: relative;
            z-index: 3;
            text-align: center;
            width: 100%;
        }

        .carbon-content-text p {
            margin-bottom: 10px;
        }

        .carbon-content-text p:last-child {
            margin-bottom: 0;
        }
        
        /* 底部标签 - 默认显示 */
        .carbon-section-label {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            color: white;
            font-size: 18px;
            font-weight: 500;
            text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            white-space: nowrap;
            opacity: 0.9;
            transition: all 0.4s ease;
            pointer-events: none;
            width: 100%;
            text-align: center;
        }

        /* 修改：悬停时所有标签都显示，不隐藏 */
        .carbon-image-section:hover .carbon-section-label,
        .carbon-image-section.active .carbon-section-label {
            opacity: 0.9; /* 保持显示 */
            visibility: visible;
            transform: translateX(-50%); /* 不移位 */
        }
        
        /* 减排模型说明区域 */
        .carbon-reduction-model {
            background-color: white;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
            margin-top: 30px;
            border-left: 5px solid var(--eco-green);
        }
        
        .carbon-reduction-model h3 {
            color: var(--dark-green);
            margin-bottom: 15px;
            font-size: 22px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .carbon-reduction-model h3 i {
            color: var(--eco-green);
        }
        
        .carbon-model-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }
        
        .carbon-model-item {
            background-color: #f8fafc;
            padding: 15px;
            border-radius: 6px;
            border-left: 4px solid var(--eco-green);
        }
        
        .carbon-model-item h4 {
            color: var(--dark-green);
            margin-bottom: 8px;
            font-size: 16px;
        }
        
        .carbon-model-item p {
            color: var(--medium-gray);
            font-size: 14px;
        }

        /* ============= 替换的数据安全与平台治理样式 ============= */
        /* 数据安全 - 新样式：卡片轮动框架 */
        .data-security-section {
            margin: 4rem 0;
        }

        .security-title {
            text-align: center;
            margin-bottom: 3rem;
        }

        .security-title h2 {
            font-size: 2rem;
            color: var(--dark-gray);
            margin-bottom: 0.5rem;
        }

        /* 2mm间隔布局 - 根据研发平台框架修改 */
        .security-cards-container {
            display: flex;
            justify-content: center;
            align-items: flex-start;
            gap: 2mm;
            width: 100%;
            overflow: visible;
            margin: 40px auto 20px;
            padding: 0 0;
            box-sizing: border-box;
            max-width: 1400px;
            min-height: 115mm;
        }

        /* 通用卡片基础 - 圆角设计 */
        .security-card {
            position: relative;
            height: 125mm;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid rgba(0,0,0,0.1);
            /* cursor: pointer; */
            flex-shrink: 0;
            transition: all 0.45s cubic-bezier(0.4, 0, 0.2, 1);
            z-index: 10;
        }

        /* 默认状态：小长方形 */
        .security-card {
            width: 30mm;
            box-shadow: var(--shadow-sm);
        }

        /* 激活状态：大长方形 */
        .security-card.sc-active {
            width: 190mm;
            box-shadow: var(--shadow-md);
            border-color: rgba(0,0,0,0.2);
            z-index: 100;
        }

        /* 非激活状态悬停效果 */
        .security-card:not(.sc-active):hover {
            box-shadow: 0 6px 18px rgba(0,0,0,0.15);
            border-color: rgba(0,0,0,0.15);
            transform: translateY(-3px);
            z-index: 50;
        }

        /* === 封面区域 === */
        .sc-cover {
            position: relative;
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2;
            box-sizing: border-box;
            border-radius: 12px;
            overflow: hidden;
        }

        /* 预览图片 - 使用深色渐变背景 */
        .sc-preview-img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            z-index: 1;
            transition: opacity 0.3s ease;
        }

        .security-card:hover .sc-preview-img {
            opacity: 0.9;
        }

        .security-card.sc-active .sc-preview-img {
            opacity: 0.4;
        }

        /* === 竖排文字容器 === */
        .sc-vertical-container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            height: 100%;
            width: 100%;
            padding-top: 30px;
            cursor: pointer;
        }

        .sc-text-wrapper {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            height: auto;
            width: 100%;
        }

        /* 标题竖排样式 - 白色文字 */
        .sc-title {
            font-size: 22px;
            font-weight: 700;
            text-align: center;
            color: white;
            text-shadow: 
                0 2px 4px rgba(0,0,0,0.8),
                0 0 10px rgba(0,0,0,0.5),
                0 0 20px rgba(0,0,0,0.3);
            writing-mode: vertical-rl;
            text-orientation: mixed;
            line-height: 1.6;
            letter-spacing: 4px;
            text-transform: uppercase;
            padding: 10px 0;
            min-height: 80px;
            margin-bottom: 35px;
            position: relative;
            top: 0;
            flex-shrink: 0;
            background: none !important;
            border-radius: 0 !important;
            border: none !important;
        }

        /* 数字样式 - 放在底部 */
        .sc-number {
            font-size: 20px;
            font-weight: 800;
            color: white;
            text-shadow: 0 2px 4px rgba(0,0,0,0.5);
            background: rgba(16, 185, 129, 0.9);
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 3px solid rgba(255,255,255,0.4);
            position: absolute;
            bottom: 25px;
            left: 50%;
            transform: translateX(-50%);
            box-shadow: 0 4px 8px rgba(0,0,0,0.3);
        }

        /* 展开状态下隐藏竖排文字 */
        .security-card.sc-active .sc-vertical-container {
            display: none;
        }

        /* === 内容区域 === */
        .sc-content {
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            box-sizing: border-box;
            transition: all 0.45s ease;
            border-radius: 12px;
            opacity: 0;
            visibility: hidden;
        }

        /* 激活状态显示内容 */
        .security-card.sc-active .sc-content {
            opacity: 1;
            visibility: visible;
        }

        /* 完整背景区域 */
        .sc-full-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
            z-index: 1;
            cursor: pointer;
        }

        /* 文字内容区域 */
        .sc-content-text {
            position: absolute;
            top: 0;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 35px 40px;
            background: linear-gradient(transparent, rgba(0,0,0,0.95));
            color: white;
            z-index: 2;
        }

        .sc-header {
            margin-bottom: 18px;
            padding-bottom: 18px;
            border-bottom: 2px solid rgba(255,255,255,0.3);
        }

        .sc-main {
            font-size: 28px;
            color: #fff;
            margin: 0 0 10px 0;
            font-weight: 700;
            line-height: 1.3;
            text-shadow: 0 2px 6px rgba(0,0,0,0.7);
        }

        .sc-sub {
            font-size: 16px;
            color: rgba(255,255,255,0.9);
            font-weight: 500;
            letter-spacing: 1px;
        }

        .sc-body {
            color: rgba(255,255,255,0.95);
            line-height: 1.8;
            font-size: 15px;
            max-width: 100%; /* 确保内容不超出 */
        }

        .sc-body p {
            margin: 0 0 16px 0;
            font-size: 14px;
        }

        .sc-principles {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-top: 20px;
        }

        .sc-principle-item {
            background: rgba(255, 255, 255, 0.1);
            padding: 12px 15px;
            border-radius: 6px;
            border-left: 3px solid var(--eco-green);
        }

        /* 链接按钮样式 */
        a.sc-link-button {
            display: inline-block;
            background: var(--eco-green);
            color: white;
            padding: 10px 20px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            margin-top: 15px;
            transition: var(--transition);
            border: 2px solid rgba(255, 255, 255, 0.2);
        }

        .sc-link-button:hover {
            background: var(--dark-green);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        /* 紧凑布局优化 */
        .security-card.sc-active {
            margin: 0 -1mm;
        }

        /* ========== 从关于我们初稿件复制的页脚样式 ========== */
        .footer {
            background-color: #2C3E50;
            color: white;
            padding: 60px 0 30px;
            margin-top: 0; /* 移除顶部间距 */
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            font-size: 18px;
            margin-bottom: 20px;
            font-weight: 700;
        }
        
        .footer-links {
            list-style-type: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: #BDC3C7;
            text-decoration: none;
            transition: color 0.2s;
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #34495E;
            color: #BDC3C7;
            font-size: 14px;
        }

        /* ========== 响应式设计 ========== */
        @media (max-width: 1200px) {
            /* 调整顶部栏和导航栏的内边距 */
            .top-bar .container,
            .nav-container {
                padding: 0 30px;
            }
        }

        @media (max-width: 992px) {
            /* 导航栏响应式 */
            .nav-main {
                display: none;
                position: fixed;
                top: 125px; /* 调整顶部位置 */
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                height: auto;
                padding: 20px 0;
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            
            .nav-main.active {
                display: flex;
            }
            
            .nav-items {
                flex-direction: column;
                width: 100%;
                height: auto;
            }
            
            .nav-item {
                width: 100%;
                height: auto;
            }
            
            .nav-link {
                padding: 18px 32px;
                border-bottom: 1px solid var(--border-light);
                justify-content: center;
            }
            
            .nav-link::after, .nav-link::before {
                display: none;
            }
            
            .dropdown-content {
                position: static;
                box-shadow: none;
                border: none;
                width: 100%;
                min-width: auto;
                display: none;
                animation: none;
            }
            
            .dropdown.active .dropdown-content {
                display: block;
            }
            
            .dropdown-content a {
                padding-left: 60px;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .platform-dropdown {
                width: 320px;
                right: 0;
            }
            
            /* 移动端调整固定导航栏 */
            .main-header {
                position: fixed;
                height: 70px;
                top: 45px;
            }
            
            .main-header.scrolled {
                height: 60px;
                top: 0;
            }
            
            .content-wrapper {
                padding-top: 115px;
            }
            
            /* 调整内边距 */
            .top-bar .container,
            .nav-container {
                padding: 0 20px;
            }
            
            /* 搜索框响应式 */
            .search-box {
                width: 220px;
            }
            
            .search-input:focus {
                width: 280px;
            }
        }

        @media (max-width: 768px) {
            .platform-dropdown {
                width: 300px;
                right: -20px;
            }
            
            .platform-grid {
                grid-template-columns: 1fr;
            }
            
            /* 调整内边距 */
            .top-bar .container,
            .nav-container {
                padding: 0 15px;
            }
            
            /* 搜索框响应式 */
            .search-box {
                width: 200px;
            }
            
            .search-input:focus {
                width: 260px;
            }
        }

        @media (max-width: 576px) {
            /* 导航栏响应式 */
            .top-bar {
                font-size: 12px;
                padding: 10px 0;
            }
            
            .top-bar-left, .top-bar-right {
                gap: 12px;
            }
            
            .stock-badge {
                padding: 4px 12px;
                font-size: 12px;
            }
            
            .logo-text .main {
                font-size: 20px;
            }
            
            .logo-text .sub {
                font-size: 11px;
            }
            
            /* 调整内边距 */
            .top-bar .container,
            .nav-container {
                padding: 0 10px;
            }
            
            /* 搜索框响应式 */
            .search-box {
                display: none; /* 小屏幕隐藏搜索框 */
            }
            
            /* 小屏幕调整导航栏 */
            .main-header {
                height: 65px;
                top: 45px;
            }
            
            .main-header.scrolled {
                height: 55px;
                top: 0;
            }
            
            .content-wrapper {
                padding-top: 110px;
            }
        }