* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #fff;
            color: #222;
            line-height: 1.5;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
                /* 缩短友情链接与列表的间距（保持不变） */
        footer {
            margin-top: 15px !important;
        }
        /* 让友情链接区域的标题和链接在同一行，且链接不换行 */
        .friend-links {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .friend-links h3 {
            margin: 0;
            font-size: 14px;
            color: #4b6a8b;
            font-weight: 500;
            white-space: nowrap;
        }
        .friend-links-container {
            display: flex;
            flex-wrap: nowrap;
            gap: 20px;
            align-items: center;
        }
        /* 保持原有链接样式不变 */
        .friend-link a {
            color: #6c86a3;
            text-decoration: none;
            font-size: 13px;
            white-space: nowrap;
        }
        .friend-link a:hover {
            color: #2c7da0;
        }
        /* 移动端适配：如果屏幕过窄允许换行，但依然保持同行布局优先 */
        @media (max-width: 550px) {
            .friend-links {
                flex-direction: column;
                gap: 6px;
            }
            .friend-links-container {
                flex-wrap: wrap;
                justify-content: center;
            }
        }
        /* 顶部栏 */
        .top-bar {
            display: flex;
            justify-content: flex-end;
            align-items: center;
            padding: 16px 24px;
            background: #fff;
        }
        .upload-link {
            background: #f0f2f5;
            border-radius: 22px;
            padding: 8px 18px;
            font-size: 14px;
            color: #1e6f3f;
            text-decoration: none;
            transition: background 0.2s;
            font-weight: 500;
        }
        .upload-link i {
            margin-right: 6px;
        }
        .upload-link:hover {
            background: #e4e8ec;
        }
        /* 百度风格主区域 */
        .baidu-main {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 20px 20px 40px;
        }
        /* logo + 品牌语 */
        .brand-area {
            text-align: center;
            margin-bottom: 28px;
            margin-top: 10px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: baseline;
            font-size: 48px;
            font-weight: 600;
            color: #2c7da0;
            letter-spacing: 1px;
        }
        .brand-logo i {
            font-size: 52px;
            margin-right: 12px;
            color: #2c7da0;
        }
        .brand-logo span {
            color: #ff6b35;
            font-weight: 700;
        }
        .brand-slogan {
            font-size: 15px;
            color: #666;
            margin-top: 10px;
            letter-spacing: 1px;
        }
        /* 搜索框 */
        .search-wrapper {
            width: 100%;
            max-width: 680px;
            margin: 0 auto 32px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid #dfe1e5;
            border-radius: 28px;
            box-shadow: 0 1px 6px rgba(32,33,36,0.08);
            transition: box-shadow 0.2s, border-color 0.2s;
            padding: 5px 8px 5px 18px;
        }
        .search-box:hover,
        .search-box:focus-within {
            box-shadow: 0 1px 8px rgba(32,33,36,0.16);
            border-color: rgba(223,225,229,0);
        }
        .search-box i.fa-search {
            color: #9aa0a6;
            font-size: 18px;
            margin-right: 12px;
        }
        .search-box input {
            flex: 1;
            border: none;
            outline: none;
            font-size: 16px;
            padding: 12px 0;
            background: transparent;
            font-weight: 400;
        }
        .search-box button {
            background: #f8f9fa;
            border: none;
            border-radius: 24px;
            padding: 8px 20px;
            margin-left: 8px;
            font-size: 14px;
            cursor: pointer;
            color: #3c4043;
            font-weight: 500;
            transition: background 0.2s;
        }
        .search-box button:hover {
            background: #e9ecef;
            box-shadow: 0 1px 2px rgba(0,0,0,0.05);
        }
        /* 导航分类快捷入口 */
        .nav-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 28px;
            margin: 10px auto 30px;
            max-width: 900px;
            background: #fff;
            border-radius: 48px;
            padding: 6px 0;
        }
        .nav-links a {
            text-decoration: none;
            color: #2c3e50;
            font-size: 15px;
            font-weight: 500;
            padding: 6px 0;
            transition: color 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links a i {
            font-size: 15px;
            color: #5f7f9e;
        }
        .nav-links a:hover {
            color: #2c7da0;
        }
        /* 最新20条标准区块 - 两列布局 */
        .latest-section {
            width: 100%;
            max-width: 1000px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 20px;
            padding: 12px 0 16px;
            box-shadow: 0 1px 2px rgba(0,0,0,0.03);
        }
        .latest-header {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            border-bottom: 1px solid #f0f0f0;
            padding: 8px 20px 12px;
            margin-bottom: 8px;
        }
        .latest-header h3 {
            font-size: 18px;
            font-weight: 600;
            color: #1e4663;
        }
        .latest-header h3 i {
            color: #f5a623;
            margin-right: 8px;
        }
        .more-tip {
            font-size: 13px;
            color: #8e9eae;
        }
        /* 两列网格核心样式 */
        .standard-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .standard-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 20px;
            border-bottom: 1px solid #f0f2f5;
            transition: background 0.15s;
            background-color: #fff;
        }
        /* 左侧列项目右边框（视觉分割） */
        .standard-item:nth-child(odd) {
            border-right: 1px solid #f0f2f5;
        }
        /* 右侧列项目无右边框 */
        .standard-item:nth-child(even) {
            border-right: none;
        }
        /* 对于最后一行不足两列的情况，移除底部边框或保持统一，但为了美观，可让最后一行的项目底边框不影响，这里不做特殊处理 */
        .standard-item:hover {
            background: #fafbfc;
        }
        .standard-info {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            flex: 1;
            min-width: 0; /* 防止溢出 */
        }
        .standard-icon {
            width: 32px;
            text-align: center;
            color: #e65c2e;
            font-size: 20px;
            flex-shrink: 0;
        }
        .standard-title {
            font-size: 14.5px;
            font-weight: 500;
            color: #1a2c3e;
            text-decoration: none;
            word-break: break-word;
            flex: 1;
            line-height: 1.4;
        }
        .standard-title:hover {
            color: #2c7da0;
            text-decoration: underline;
        }
        .standard-date {
            font-size: 12px;
            color: #9aa6b5;
            background: #f8f9fa;
            padding: 3px 10px;
            border-radius: 20px;
            white-space: nowrap;
            margin-left: 8px;
            flex-shrink: 0;
        }
        /* 响应式：移动端改为单列 */
        @media (max-width: 760px) {
            .standard-list {
                grid-template-columns: 1fr;
            }
            .standard-item:nth-child(odd) {
                border-right: none;
            }
            .standard-item {
                padding: 12px 16px;
            }
            .latest-header {
                padding: 8px 16px 12px;
            }
        }
        /* 底部 */
        footer {
            background: #f8f9fa;
            margin-top: 60px;
            padding: 28px 0 20px;
            border-top: 1px solid #eef2f5;
        }
        .friend-links {
            text-align: center;
            margin-bottom: 20px;
        }
        .friend-links h3 {
            font-size: 14px;
            color: #4b6a8b;
            font-weight: 500;
            margin-bottom: 12px;
        }
        .friend-links-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }
        .friend-link a {
            color: #6c86a3;
            text-decoration: none;
            font-size: 13px;
        }
        .friend-link a:hover {
            color: #2c7da0;
        }
        .copyright {
            text-align: center;
            font-size: 12px;
            color: #8c9cb0;
            line-height: 1.6;
            margin-top: 20px;
        }
        @media (max-width: 680px) {
            .brand-logo {
                font-size: 32px;
            }
            .brand-logo i {
                font-size: 36px;
            }
            .search-wrapper {
                max-width: 94%;
            }
            .search-box {
                padding: 3px 8px 3px 14px;
            }
            .search-box input {
                font-size: 14px;
                padding: 10px 0;
            }
            .search-box button {
                padding: 6px 14px;
            }
            .nav-links {
                gap: 16px;
                margin: 10px 0 20px;
            }
            .nav-links a {
                font-size: 13px;
            }
        }