/* 容器样式 */
.ai-ad-hero-section {
    padding: 60px 20px;
    text-align: center;
    background: #ffffff; /* 如果背景有渐变，可以在这里修改 */
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* 主标题样式 */
.ai-ad-title {
    font-size: 48px;
    font-weight: 800;
    color: #000000;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

/* 绿色渐变文字效果 */
.ai-ad-title .highlight {
    background: linear-gradient(to right, #0c8bff, #0f628c);
	-webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 副标题样式 */
.ai-ad-subtitle {
    font-size: 18px;
    color: #333333;
    max-width: 1000px;
    margin: 0 auto;
    line-height: 1.6;
    word-break: break-all;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .ai-ad-title {
        font-size: 28px;
    }
    .ai-ad-subtitle {
        font-size: 14px;
        padding: 0 10px;
    }
}

.ad-text-box {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}



/* --- 右侧悬浮工具栏容器 --- */
        .side-bar {
            position: fixed;
            right: 30px;
            bottom: 60px;
            display: flex;
            flex-direction: column;
            gap: 15px; /* 按钮之间的间距 */
            z-index: 9999;
        }

        /* --- 通用按钮样式 --- */
        .bar-item {
            width: 60px;
            height: 60px;
            background-color: #ffffff;
            border-radius: 16px;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
            cursor: pointer;
            position: relative;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .bar-item:hover {
            background-color: #fafafa;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
        }

        /* --- 微信二维码面板 --- */
        .qr-card {
            position: absolute;
            right: 80px; /* 距离右侧按钮的距离 */
            bottom: -20px;
            width: 200px;
            background: #ffffff;
            border-radius: 24px;
            padding: 25px;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
            text-align: center;
            
            /* 初始状态：隐藏 */
            visibility: hidden;
            opacity: 0;
            transform: translateX(30px) scale(0.9);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
            pointer-events: none; /* 防止误触 */
        }

        /* 鼠标悬停显示面板 */
        .wechat-box:hover .qr-card {
            visibility: visible;
            opacity: 1;
            transform: translateX(0) scale(1);
        }

        .qr-card img {
            width: 100%;
            height: auto;
            margin-bottom: 15px;
        }

        .qr-card p {
            margin: 0;
            color: #1c2438;
            font-size: 16px;
            font-weight: 600;
            line-height: 1.4;
        }

        /* --- 返回顶部按钮专属样式 --- */
        #btnBackTop {
            /* 初始隐藏 */
            opacity: 0;
            visibility: hidden;
            transform: translateY(30px); 
            transition: all 0.4s ease;
        }

        /* 滚动后激活显示的类 */
        #btnBackTop.is-visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        /* 图标颜色与大小 */
        .icon-wechat { width: 34px; height: 34px; fill: #07C160; }
        .icon-top { width: 26px; height: 26px; stroke: #8e94a3; stroke-width: 2.5; fill: none; }

        /* 平滑滚动 */
        html {
            scroll-behavior: smooth;
        }


        footer {
            background-color: #ffffff;
            color: #333;
            padding: 60px 5% 20px; /* 适当缩小侧边距适应小屏 */
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            border-top: 1px solid #eee;
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        /* 桌面端：横向排列 */
        .footer-columns {
            display: flex;
            justify-content: space-between;
            margin-bottom: 50px;
        }

        .column {
            flex: 1;
        }

        .column h4 {
            font-size: 16px;
            margin-bottom: 20px;
            color: #000;
        }

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

        .column ul li {
            margin-bottom: 12px;
        }

        /* 链接样式与过渡 */
        .footer-link {
            text-decoration: none;
            font-size: 14px;
            color: #666;
            transition: color 0.3s ease, transform 0.3s ease;
            display: inline-block; /* 配合 transform 动画 */
        }

        .footer-link:hover {
            color: #1890ff;
            transform: translateX(5px); /* 悬停右移 */
        }

        /* 品牌展示条 */
        .brand-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 25px 0;
            border-top: 1px solid #f5f5f5;
        }

        .logo-area {
            font-weight: bold;
            font-size: 22px;
            color: #00bfa5;
            text-decoration: none;
        }

        .slogan {
            font-size: 13px;
            color: #999;
        }

        /* 底部版权 */
        .sub-footer {
            display: flex;
            justify-content: space-between;
            padding-top: 20px;
            font-size: 12px;
            color: #999;
        }

        /* === 关键修改：手机端一行两排布局 === */
        @media (max-width: 768px) {
            .footer-columns {
                display: flex;
                flex-wrap: wrap; /* 允许换行 */
                gap: 20px 0;    /* 设置行间距 */
            }

            .column {
                flex: 0 0 50%; /* 核心：每个栏目占据 50% 的宽度 */
                box-sizing: border-box;
            }

            .brand-bar {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }

            .sub-footer {
                flex-direction: column;
                align-items: center;
                gap: 15px;
                text-align: center;
            }
        }
	
	/* 友情链接容器 */
.footer-friend-links {
    display: flex;
    align-items: center;
    flex-wrap: wrap; /* 手机端自动换行 */
    padding: 20px 0;
    border-top: 1px solid #f5f5f5; /* 与上方菜单分割 */
    margin-top: 20px;
}

/* 标题样式 */
.friend-links-title {
    font-size: 13px;
    color: #999;
    margin-right: 15px;
    white-space: nowrap;
}

/* 列表去掉默认样式并横向排列 */
.friend-links-list {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
}

.friend-links-list li {
    margin-right: 20px;
}

/* 链接基础样式 */
.friend-links-list li a {
    text-decoration: none;
    font-size: 13px;
    color: #999; /* 初始颜色较浅，不抢戏 */
    transition: color 0.3s ease;
}

/* 鼠标悬停样式 */
.friend-links-list li a:hover {
    color: #00bfa5; /* 变成品牌色 */
    text-decoration: none;
}

/* 手机端适配：一行排不下时微调间距 */
@media (max-width: 768px) {
    .footer-friend-links {
        padding: 15px 0;
    }
    .friend-links-list li {
        margin-right: 15px;
        margin-bottom: 5px;
    }
}
img.foot_logo {
    height: 30px;
}