a:link {
			color:grey;
			text-decoration:none;
		}
		a:visited {
			color:grey;
			text-decoration:none;
		}
		a:hover {
			color:aqua;
			text-decoration:none;
		}

h1{
    font: 48px ;
    margin:50px auto;
	font-weight: 100;
	background:-webkit-linear-gradient(top, #DCDCDC, #A9A9A9);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	-webkit-animation:bounce 2s infinite;
		}
@-webkit-keyframes bounce{
	0%,100%,20%,50%,80%{
	-webkit-transform:translateY(0);
	    }
	40%{
	    -webkit-transform:translateY(-30px);
		}
	60%{
	    -webkit-transform:translateY(-15px);
		}
	}

body {

  background-image: url('../images/notice_img.png');

  background-position: center center;

  background-repeat: no-repeat;

  background-attachment: fixed;

  background-size: cover;

  background-color: #464646;

}

a {
            color: black;
            text-decoration: none;
            color: olive;
        }

        .card-container {
            width: 48em;
            margin: 64px auto;
        }

        .card {
            opacity: 0.87;
            padding: 24px 32px;
            box-shadow: 0 2px 2px 0 rgba(0, 0, 0, .14), 0 3px 1px -2px rgba(0, 0, 0, .2), 0 1px 5px 0 rgba(0, 0, 0, .12);
            border-radius: 2px;
            background: white;
            margin-bottom: 8px;
            position: relative;
        }

        .node {
            position: absolute;
            top: 16px;
            right: 24px;
            opacity: 0.68;
            font-size: 48px;
            font-weight: 400;
        }
/* 文件列表样式 */
        .file-list {
            list-style: none;
            padding: 0;
            margin: 20px 0;
        }
        .file-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px;
            margin: 10px 0;
            background: rgba(255, 255, 255,0.5);
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255,0.5);
            transition: all 0.3s ease;
        }
        .file-item:hover {
            background: rgba(233, 233, 233,0.5);
            transform: translateX(5px);
        }
        .file-info {
            flex-grow: 1;
        }
        .file-name {
            font-weight: bold;
            color: #fff;
            margin-bottom: 5px;
        }
        .file-details {
            font-size: 12px;
            color: #ffffff;
        }
        .download-btn {
            background: linear-gradient(45deg, #ffffff, #eaeaea);
            color: white;
            padding: 8px 16px;
            border: none;
            border-radius: 6px;
            text-decoration: none;
            font-size: 14px;
            transition: all 0.3s ease;
        }
        .download-btn:hover {
            background: linear-gradient(45deg, #e9e9e9, #dadada);
            transform: scale(1.05);
        }
        .empty-state {
            text-align: center;
            padding: 40px;
            color: #ffffff;
            font-style: italic;
        }