486 lines
9.9 KiB
CSS
486 lines
9.9 KiB
CSS
/* General Styles */
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* {
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box-sizing: border-box;
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}
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body {
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font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
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line-height: 1.6;
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margin: 0;
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padding: 0;
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background-color: #fff;
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color: #333;
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}
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.container {
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width: 90%;
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max-width: 1200px;
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margin: auto;
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overflow: hidden;
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padding: 0 20px;
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}
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/* --- Sticky Navigation Bar --- */
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.sticky-nav-wrapper {
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position: fixed;
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top: 0;
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left: 0;
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width: 100%;
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background-color: #E1F2FA; /* 保持截图中的粉色背景 */
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z-index: 1000;
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box-shadow: 0 2px 5px rgba(0,0,0,0.1);
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transition: background-color 0.3s ease; /* 新增：平滑过渡效果 */
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}
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/* .sticky-nav-wrapper .container 的 padding: 0 20px; 会保持内容居中 */
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/* 新增：导航栏滚动后的样式 */
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.sticky-nav-wrapper.scrolled-nav {
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background-color: rgba(55, 218, 221, 0.85); /* 半透明粉色，可调整透明度 (0.85) */
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}
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.header-top-bar-content {
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display: flex;
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justify-content: space-between;
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align-items: center;
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padding: 15px 0; /* 导航栏的垂直内边距 */
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}
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.logo a {
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font-size: 24px;
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font-weight: bold;
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color: #333;
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text-decoration: none;
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text-transform: uppercase;
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}
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.main-nav ul {
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list-style: none;
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padding: 0;
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margin: 0;
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display: flex;
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}
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.main-nav li {
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margin-left: 25px;
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}
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.main-nav a {
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text-decoration: none;
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color: #333;
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font-weight: 500;
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font-size: 16px;
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}
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.main-nav a:hover {
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color: #007bff;
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}
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/* --- Hero Area --- */
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.site-hero-area {
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background-color: #FADADD; /* 粉色背景，现在只用于英雄图片区域 */
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/* padding-top 将由 JS 设置，以避免被固定导航栏遮挡 */
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}
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.hero-image-placeholder {
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background-color: #FEC5D6; /* 英雄图占位符的备用背景色 */
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display: flex;
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align-items: flex-start;
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justify-content: center;
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color: #864659; /* 英雄图上文字颜色 */
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font-size: 2em;
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font-weight: bold;
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text-align: center;
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background-image: url('placeholder-hero.jpg'); /* 替换为您的英雄图片URL */
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background-size: cover;
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background-position: center;
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}
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.hero-image-placeholder .hero-text {
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background-color: rgba(250, 218, 221, 0.6); /* 文字背景，增加可读性 */
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padding: 10px 20px;
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border-radius: 5px;
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}
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.hero-img {
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width: 100%;
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height: 750px;
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object-fit: cover; /* 保持铺满 */
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object-position: top; /* ✅ 强制优先显示顶部内容，底部裁剪 */
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display: block;
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border-radius: 8px;
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}
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/* --- Main Content Area --- */
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.main-content-area { /* 用于包裹博客主要内容，方便整体控制 */
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/* 如果需要，可以在这里添加额外的上边距，但目前由 .site-hero-area 的 padding-top 控制 */
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}
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.blog-main-title {
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text-align: center;
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font-size: 28px;
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color: #333;
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margin: 40px 0 20px 0;
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font-weight: 600;
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}
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.filter-buttons {
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text-align: center;
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margin-bottom: 30px;
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}
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.filter-button {
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background-color: #007bff;
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color: white;
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border: none;
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padding: 10px 20px;
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margin: 0 5px;
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border-radius: 5px;
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cursor: pointer;
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font-size: 16px;
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font-weight: 500;
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}
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.filter-button:hover {
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background-color: #0056b3;
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}
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.posts-grid {
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display: grid;
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grid-template-columns: repeat(2, 1fr); /* 每行两个等宽 */
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gap: 40px;
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}
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.post-card {
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max-width: 100%;
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width: 100%;
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}
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/* --- Post Card Styles (Corrected and Improved) --- */
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.post-card {
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background: #fff;
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border-radius: 8px;
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box-shadow: 0 4px 12px rgba(0,0,0,0.1);
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overflow: hidden;
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display: flex;
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flex-direction: column;
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}
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.post-card-image {
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position: relative;
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overflow: hidden;
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}
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.post-card-img {
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width: 100%;
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height: auto;
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display: block;
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}
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.post-card-image .play-icon {
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background-color: rgba(0, 0, 0, 0.5);
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border-radius: 50%;
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width: 60px;
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height: 60px;
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display: flex;
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align-items: center;
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justify-content: center;
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cursor: pointer;
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box-shadow: 0 2px 4px rgba(0,0,0,0.2);
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transition: background-color 0.2s ease-in-out;
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font-size: 0; /* 隐藏原始的 "►" 字符 */
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border: none; /* 确保没有额外的边框 */
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}
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.post-card-image .play-icon::before {
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content: "";
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width: 0;
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height: 0;
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border-style: solid;
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border-width: 10px 0 10px 15px; /* TopHeight RightWidth BottomHeight LeftWidth */
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border-color: transparent transparent transparent rgba(255, 255, 255, 0.95); /* 三角形颜色 */
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display: block;
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margin-left: 3px; /* 根据实际效果微调此值以使三角形视觉居中 */
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}
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.post-card-image .play-icon:hover {
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background-color: rgba(0, 0, 0, 0.7); /* 悬停时背景变暗 */
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}
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.post-card-image .image-title-overlay {
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position: absolute;
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top: 15px;
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left: 50%;
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transform: translateX(-50%);
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color: white;
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background-color: rgba(0,0,0,0.6);
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padding: 5px 15px;
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border-radius: 3px;
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font-size: 1em;
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font-weight: bold;
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text-align: center;
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white-space: nowrap;
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}
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.post-card-image .image-subtitle-overlay {
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position: absolute;
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top: 48px; /* 示例值，请根据 image-title-overlay 的实际高度和间距调整 */
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left: 50%;
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transform: translateX(-50%);
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color: #eee;
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background-color: rgba(0,0,0,0.5);
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padding: 2px 8px;
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border-radius: 3px;
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font-size: 0.8em;
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white-space: nowrap;
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}
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.polytopia-watermark {
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position: absolute;
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bottom: 10px;
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left: 10px;
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color: rgba(255, 255, 255, 0.6);
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background-color: rgba(0,0,0,0.4);
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padding: 2px 5px;
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border-radius: 2px;
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font-size: 0.7em;
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text-transform: uppercase;
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}
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.post-card-content {
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padding: 20px;
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flex-grow: 1;
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display: flex;
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flex-direction: column;
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}
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.post-card-content h2 {
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margin-top: 0;
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margin-bottom: 5px;
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font-size: 1.3em;
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color: #222;
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font-weight: 600;
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}
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.post-card-content .date {
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font-size: 0.85em;
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color: #666;
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margin-bottom: 15px;
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display: block;
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}
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.post-card-content p {
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font-size: 0.95em;
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color: #444;
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margin-bottom: 15px;
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flex-grow: 1;
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}
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.post-card-content .go-there-link {
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color: #007bff;
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text-decoration: none;
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font-weight: 500;
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font-size: 0.95em;
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align-self: flex-start;
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}
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.post-card-content .go-there-link:hover {
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text-decoration: underline;
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}
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/* --- Footer Styles --- */
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footer {
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background: #222;
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color: #ccc;
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text-align: center;
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padding: 40px 20px 20px 20px;
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margin-top: 40px;
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}
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.footer-top-social {
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margin-bottom: 30px;
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display: flex;
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justify-content: center;
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align-items: center;
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}
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.footer-top-social a {
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color: #fff;
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text-decoration: none;
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font-size: 1.3em;
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margin: 0 12px;
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}
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.footer-top-social a:hover {
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color: #00A2FF;
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}
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footer .footer-columns {
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display: flex;
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flex-wrap: wrap;
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justify-content: space-around;
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margin-bottom: 30px;
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max-width: 1200px;
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margin-left: auto;
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margin-right: auto;
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}
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footer .footer-column {
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flex: 1;
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min-width: 200px;
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margin: 10px 20px;
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text-align: left;
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}
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footer .footer-column h4 {
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color: #fff;
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border-bottom: none;
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padding-bottom: 5px;
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margin-bottom: 15px;
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font-size: 1.1em;
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font-weight: 600;
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}
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footer .footer-column ul {
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list-style: none;
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padding: 0;
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}
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footer .footer-column ul li {
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margin-bottom: 10px;
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}
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footer .footer-column ul li a {
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color: #bbb;
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font-size: 0.95em;
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}
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footer .footer-column ul li a:hover {
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color: #fff;
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}
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.community-channels-title {
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font-size: 1.4em;
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color: #fff;
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margin-top: 40px;
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margin-bottom: 20px;
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font-weight: 600;
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}
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.footer-bottom-social {
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display: flex;
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justify-content: center;
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align-items: center;
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flex-wrap: wrap;
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margin-bottom: 30px;
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}
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.footer-bottom-social a {
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background-color: #333;
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color: #fff;
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text-decoration: none;
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width: 40px;
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height: 40px;
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border-radius: 50%;
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display: flex;
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justify-content: center;
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align-items: center;
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font-size: 1.2em;
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margin: 20px 20px;
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transition: background-color 0.3s ease;
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}
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.footer-bottom-social a:hover {
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background-color: #007bff;
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}
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footer .copyright {
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font-size: 0.9em;
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color: #888;
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margin-top: 20px;
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}
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.blog-main-subtitle {
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text-align: center;
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font-size: 18px;
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color: #555;
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margin-top: 0;
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margin-bottom: 30px;
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}
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/* --- Responsive Adjustments --- */
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@media (max-width: 768px) {
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.header-top-bar-content { /* 调整固定导航栏在小屏幕上的表现 */
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flex-direction: column;
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padding: 10px 0; /* 减少垂直内边距 */
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}
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.logo {
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margin-bottom: 10px;
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}
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.main-nav ul {
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justify-content: center;
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flex-wrap: wrap;
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}
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.main-nav li {
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margin: 5px 10px;
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}
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.posts-grid {
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grid-template-columns: 1fr;
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}
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.site-hero-area {
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/* padding-top will be dynamically adjusted by JS */
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padding-top: 0 !important;
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margin-top: 0;
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}
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.hero-image-placeholder {
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height: 200px; /* 减小英雄图高度 */
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font-size: 1.5em;
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}
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.blog-main-title {
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font-size: 24px;
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}
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.filter-button {
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padding: 8px 15px;
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font-size: 14px;
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}
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.posts-grid {
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grid-template-columns: 1fr; /* 单列博文 */
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}
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.container { /* 全局 container 调整 */
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width: 95%;
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padding: 0 10px;
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}
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/* 固定导航栏内的 .container 也继承此处的 padding */
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footer .footer-columns {
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flex-direction: column;
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align-items: center;
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}
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footer .footer-column {
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text-align: center;
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margin-bottom: 25px;
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width: 100%;
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}
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footer .footer-column h4 {
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text-align: center;
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}
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.footer-top-social {
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margin-bottom: 20px;
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}
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.community-channels-title {
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margin-top: 20px;
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font-size: 1.2em;
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}
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.footer-bottom-social a {
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width: 36px;
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height: 36px;
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font-size: 1.1em;
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margin: 5px;
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}
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}
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