/* 基础样式 */
body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

header {
    background: #35424a;
    color: #ffffff;
    padding-top: 30px;
    min-height: 70px;
    border-bottom: #e8491d 3px solid;
}

header a {
    color: #ffffff;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 16px;
}

header ul {
    padding: 0;
    margin: 0;
    list-style: none;
    overflow: hidden;
}

header li {
    float: left;
    display: inline;
    padding: 0 20px 0 20px;
}

header #branding {
    float: left;
}

header #branding h1 {
    margin: 0;
}

header nav {
    float: right;
    margin-top: 10px;
}

header .highlight, header .current a {
    color: #e8491d;
    font-weight: bold;
}

header a:hover {
    color: #cccccc;
    font-weight: bold;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

table, th, td {
    border: 1px solid #ddd;
}

th, td {
    padding: 12px;
    text-align: left;
}

th {
    background-color: #35424a;
    color: white;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

/* 表单样式 */
form {
    background: #ffffff;
    padding: 20px;
    margin: 20px 0;
    border-radius: 5px;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"],
select,
textarea {
    width: 100%;
    padding: 10px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

input[type="submit"] {
    width: 100%;
    background-color: #4CAF50;
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

input[type="submit"]:hover {
    background-color: #45a049;
}

/* 仪表板卡片 */
.dashboard-card {
    background: #fff;
    border-radius: 5px;
    padding: 20px;
    margin: 10px;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2);
    text-align: center;
}

.dashboard-card h3 {
    color: #35424a;
}

.dashboard-card .amount {
    font-size: 24px;
    font-weight: bold;
    color: #e8491d;
}