【新增】首页样式封装

src/main/resources/static/assets/css/main.css

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+:root {
+    --primary-color: #5B5FDE;
+    --secondary-color: #0EA5E9;
+    --accent-color: #FF6B6B;
+    --error-color: #F43F5E;
+    --success-color: #10B981;
+    --warning-color: #F59E0B;
+    --info-color: #3B82F6;
+}
+
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+body {
+    background-color: #F3F4F6;
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+}
+
+/* 侧边栏样式 */
+.sidebar {
+    min-height: 100vh;
+    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
+    color: white;
+    padding: 0;
+    position: fixed;
+    left: 0;
+    top: 0;
+    width: 180px;
+    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
+}
+
+.sidebar-header {
+    padding: 18px 12px;
+    text-align: center;
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.sidebar-header h4 {
+    font-size: 16px;
+    font-weight: 700;
+    margin: 0;
+}
+
+.sidebar-header i {
+    margin-right: 5px;
+    font-size: 16px;
+}
+
+.sidebar-menu {
+    padding: 12px 8px;
+}
+
+.sidebar .nav-link {
+    color: rgba(255, 255, 255, 0.85);
+    padding: 9px 10px;
+    border-radius: 8px;
+    margin: 3px 0;
+    transition: all 0.3s;
+    font-weight: 500;
+    font-size: 13px;
+    display: flex;
+    align-items: center;
+}
+
+.sidebar .nav-link i {
+    width: 18px;
+    font-size: 15px;
+}
+
+.sidebar .nav-link:hover {
+    background-color: rgba(255, 255, 255, 0.15);
+    color: white;
+    transform: translateX(5px);
+}
+
+.sidebar .nav-link.active {
+    background-color: rgba(255, 255, 255, 0.25);
+    color: white;
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+}
+
+.sidebar-footer {
+    position: absolute;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    padding: 12px 8px;
+}
+
+.btn-logout {
+    width: 100%;
+    padding: 9px;
+    background: rgba(255, 255, 255, 0.15);
+    border: 1px solid rgba(255, 255, 255, 0.3);
+    color: white;
+    border-radius: 8px;
+    font-weight: 600;
+    font-size: 13px;
+    transition: all 0.3s;
+}
+
+.btn-logout:hover {
+    background: rgba(255, 255, 255, 0.25);
+    transform: translateY(-2px);
+}
+
+/* 顶部导航栏 */
+.navbar {
+    background-color: white;
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
+    padding: 12px 25px;
+}
+
+.navbar-brand {
+    font-size: 18px;
+    font-weight: 700;
+    color: #1F2937;
+}
+
+.user-info {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    color: #4B5563;
+    font-weight: 500;
+    font-size: 14px;
+}
+
+.user-info i {
+    font-size: 20px;
+    color: var(--primary-color);
+}
+
+/* 主内容区 */
+.main-content {
+    margin-left: 180px;
+}
+
+/* 内容区域 */
+.content-wrapper {
+    padding: 25px;
+}
+
+/* 欢迎卡片 */
+.welcome-card {
+    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
+    color: white;
+    border-radius: 16px;
+    padding: 35px;
+    margin-bottom: 25px;
+    box-shadow: 0 10px 30px rgba(91, 95, 222, 0.2);
+    position: relative;
+    overflow: hidden;
+}
+
+.welcome-card::before {
+    content: '';
+    position: absolute;
+    width: 250px;
+    height: 250px;
+    background: rgba(255, 255, 255, 0.1);
+    border-radius: 50%;
+    top: -80px;
+    right: -80px;
+}
+
+.welcome-card h2 {
+    font-size: 26px;
+    font-weight: 700;
+    margin-bottom: 10px;
+    position: relative;
+    z-index: 1;
+}
+
+.welcome-card p {
+    font-size: 15px;
+    opacity: 0.95;
+    position: relative;
+    z-index: 1;
+}
+
+/* 统计卡片 */
+.stat-card {
+    background: white;
+    border-radius: 12px;
+    padding: 25px;
+    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
+    transition: all 0.3s;
+    border: 1px solid #E5E7EB;
+}
+
+.stat-card:hover {
+    transform: translateY(-5px);
+    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
+}
+
+.stat-card i {
+    font-size: 40px;
+    opacity: 0.9;
+    margin-bottom: 12px;
+}
+
+.stat-card h3 {
+    font-size: 30px;
+    font-weight: 700;
+    margin: 12px 0 6px;
+    color: #1F2937;
+}
+
+.stat-card p {
+    color: #6B7280;
+    font-size: 13px;
+    margin: 0;
+}
+
+.stat-card.primary i {
+    color: var(--primary-color);
+}
+
+.stat-card.success i {
+    color: var(--success-color);
+}
+
+.stat-card.warning i {
+    color: var(--warning-color);
+}
+
+.stat-card.info i {
+    color: var(--info-color);
+}
+
+/* 页面标题 */
+.page-title {
+    font-size: 24px;
+    font-weight: 700;
+    color: #1F2937;
+    margin-bottom: 20px;
+}
+
+/* 卡片容器 */
+.card {
+    background: white;
+    border-radius: 12px;
+    border: 1px solid #E5E7EB;
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
+}
+
+.card-body {
+    padding: 25px;
+}
+
+/* 响应式 */
+@media (max-width: 768px) {
+    .sidebar {
+        width: 100%;
+        position: relative;
+        min-height: auto;
+    }
+
+    .main-content {
+        margin-left: 0;
+    }
+
+    .sidebar-footer {
+        position: static;
+        margin-top: 15px;
+    }
+
+    .welcome-card {
+        padding: 25px;
+    }
+
+    .welcome-card h2 {
+        font-size: 20px;
+    }
+
+    .content-wrapper {
+        padding: 20px;
+    }
+}