* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    }

    .container {
        margin: auto;
        /* max-width: 880px; */
        width: 80%;
        margin-top: 50px;
    }

    /* 标题区域 */
    header {
        text-align: center;
        margin-bottom: 2.5rem;
    }

    header h1 {
        font-size: 2.2rem;
        font-weight: 700;
        color: #0b1f3b;
        margin-bottom: 0.5rem;
    }

    header p {
        font-size: 1.1rem;
        color: #6a7f9e;
        font-weight: 400;
    }

    /* 搜索区域 */
    .search-box {
        display: flex;
        flex-wrap: wrap;
        gap: 0.8rem;
        margin: 0 0 1.5rem 0;
        align-items: center;
    }
    
    .search-box input {
        flex: 1 1 280px;
        display: flex;
        background: #dddddd;
        border-radius: 3rem;
        border: 1px solid #d0dbe9;
        transition: box-shadow 0.2s, border-color 0.2s;
        box-shadow: 0 2px 8px rgb(68 87 107 / 2%);
        padding: 1rem 1.8rem;
        border: none;
        font-size: 1.1rem;
        outline: none;
        color: #1a2636;
    }
    
    .search-box input:focus {
        border-color: #1e5a8a;
        box-shadow: 0 4px 12px rgba(30, 90, 138, 0.12);
    }
    
    .search-box input::placeholder {
        color: #9aabca;
        font-weight: 400;
        opacity: 0.8;
    }
    
    /* 搜索按钮 */
    .search-box button {
        background: #1e5a8a;
        border: none;
        color: white;
        font-size: 1.1rem;
        font-weight: 500;
        padding: 1rem 2.2rem;
        border-radius: 3rem;
        cursor: pointer;
        transition: all 0.2s;
        box-shadow: 0 10px 20px -8px rgba(30, 90, 138, 0.7);
        border: 1px solid rgba(255,255,255,0.2);
        white-space: nowrap;
        line-height: 1;
    }
    
    .search-box button:hover {
        background: #2a6ba0;
        transform: scale(1.02);
        box-shadow: 0 15px 25px -10px #1e4a73;
    }
    
    /* 智能搜索按钮特殊样式 */
    #AIsearch-btn {
        background: #4a6fa5;
    }
    
    #AIsearch-btn:hover {
        background: #5a7fb5;
    }

    /* 结果统计 */
    .results-container h2 {
        font-size: 1.4rem;
        font-weight: 600;
        color: #0b1f3b;
        margin-bottom: 1rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }
    
    .results-count {
        background: #eef3fc;
        padding: 0.2rem 0.8rem;
        border-radius: 2rem;
        font-size: 1rem;
        font-weight: 500;
        color: #1e5a8a;
    }

    /* 结果列表 */
    .results-list {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        max-height: 480px;
        overflow-y: auto;
        padding-right: 0.3rem;
        margin-top: 0.5rem;
    }
    
    .results-list::-webkit-scrollbar {
        width: 6px;
    }
    
    .results-list::-webkit-scrollbar-track {
        background: #d9e2ef;
        border-radius: 20px;
    }
    
    .results-list::-webkit-scrollbar-thumb {
        background: #a0b8d6;
        border-radius: 20px;
    }

    /* 单个结果卡片 */
    .search-list-item {
        background: #ffffff;
        border-radius: 1.5rem;
        border: 1px solid #e2eaf3;
        box-shadow: 0 4px 12px rgba(0, 10, 30, 0.03);
        transition: all 0.2s ease;
        overflow: hidden;
    }
    
    .search-list-item:hover {
        background: #f5faff;
        border-color: #7a9bcb;
        box-shadow: 0 12px 24px -8px rgba(30, 90, 138, 0.2);
        transform: translateY(-2px);
    }
    
    .search-list-item a {
        display: block;
        text-decoration: none;
        color: inherit;
        padding: 1.3rem 1.5rem;
    }
    
    .search-list-item h3 {
        font-size: 1.25rem;
        font-weight: 600;
        margin-bottom: 0.8rem;
        color: #0b1f3b;
        line-height: 1.4;
    }
    
    .search-list-item .content p {
        font-size: 1rem;
        line-height: 1.5;
        color: #2f405b;
        margin-bottom: 0.8rem;
    }
    
    .search-list-item .date {
        display: flex;
        gap: 1rem;
        color: #6a7f9e;
        font-size: 0.9rem;
    }
    
    .search-list-item .date span {
        display: flex;
        align-items: center;
        gap: 0.3rem;
    }
    
    .search-list-item .date span:first-child {
        background: #edf3fb;
        padding: 0.2rem 0.8rem;
        border-radius: 1rem;
    }

    /* 空状态 */
    .empty-state {
        text-align: center;
        padding: 3rem 1rem;
        color: #6f88aa;
        font-size: 1.2rem;
        background: #f8fcff;
        border-radius: 2rem;
        border: 1px dashed #bacde2;
    }

    /* 分页控件 */
    .pagination {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 1rem;
        margin-top: 2rem;
        padding: 0.5rem 0;
    }
    
    .page-btn {
        background: white;
        border: 1px solid #cbd5e1;
        color: #1e293b;
        font-size: 1rem;
        font-weight: 500;
        padding: 0.6rem 1.5rem;
        border-radius: 2.5rem;
        cursor: pointer;
        transition: all 0.2s;
        box-shadow: 0 2px 6px rgba(0,0,0,0.02);
        display: inline-flex;
        align-items: center;
        gap: 0.3rem;
    }
    
    .page-btn:hover:not(:disabled) {
        background: #f0f4fe;
        border-color: #1e5a8a;
        color: #1e5a8a;
        box-shadow: 0 8px 16px -8px #1e5a8a;
        transform: translateY(-1px);
    }
    
    .page-btn:disabled {
        opacity: 0.4;
        cursor: not-allowed;
        background: #e9eef4;
        border-color: #ccd8e6;
    }
    
    .page-info {
        font-size: 1rem;
        color: #4b5b73;
        background: #ecf1f8;
        padding: 0.4rem 1.2rem;
        border-radius: 2rem;
        font-weight: 500;
    }
    
    .page-info span {
        font-weight: 700;
        color: #1e5a8a;
        margin: 0 0.2rem;
    }

    /* 移动端优化 */
    @media (max-width: 550px) {
        .search-box { flex-direction: column; }
        .search-box input { width: 100%; }
        .search-box button { width: 100%; justify-content: center; }
        .results-container h2 { flex-direction: column; align-items: flex-start; }
        .search-list-item .date { flex-direction: column; gap: 0.5rem; }
        .pagination { flex-wrap: wrap; }
    }