/**
 * FastPoster Design System
 * 统一使用 Element UI 风格
 * 主色调: #409eff (Element Blue)
 * 背景色: #f5f7fa / #ffffff
 * 文字色: #303133 / #606266 / #909399
 */

/* ==================== 基础变量 ==================== */
:root {
    /* Element UI 主色调 */
    --el-color-primary: #409eff;
    --el-color-primary-light-3: #79bbff;
    --el-color-primary-light-5: #a0cfff;
    --el-color-primary-light-7: #c6e2ff;
    --el-color-primary-light-8: #d9ecff;
    --el-color-primary-light-9: #ecf5ff;
    --el-color-primary-dark-2: #337ecc;

    /* 功能色 */
    --el-color-success: #67c23a;
    --el-color-warning: #e6a23c;
    --el-color-danger: #f56c6c;
    --el-color-info: #909399;

    /* 文字色 */
    --el-text-color-primary: #303133;
    --el-text-color-regular: #606266;
    --el-text-color-secondary: #909399;
    --el-text-color-placeholder: #a8abb2;
    --el-text-color-disabled: #c0c4cc;

    /* 边框色 */
    --el-border-color: #dcdfe6;
    --el-border-color-light: #e4e7ed;
    --el-border-color-lighter: #ebeef5;
    --el-border-color-extra-light: #f2f6fc;

    /* 填充色 */
    --el-fill-color: #f0f2f5;
    --el-fill-color-light: #f5f7fa;
    --el-fill-color-lighter: #fafafa;
    --el-fill-color-extra-light: #fafcff;
    --el-fill-color-dark: #ebedf0;
    --el-fill-color-darker: #e6e8eb;
    --el-fill-color-blank: #ffffff;

    /* 背景色 */
    --el-bg-color: #ffffff;
    --el-bg-color-page: #f2f3f5;
    --el-bg-color-overlay: #ffffff;

    /* 圆角 */
    --el-border-radius-base: 4px;
    --el-border-radius-small: 2px;
    --el-border-radius-round: 20px;
    --el-border-radius-circle: 100%;

    /* 字体 */
    --el-font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
    --el-font-size-extra-large: 20px;
    --el-font-size-large: 18px;
    --el-font-size-medium: 16px;
    --el-font-size-base: 14px;
    --el-font-size-small: 13px;
    --el-font-size-extra-small: 12px;

    /* 阴影 */
    --el-box-shadow: 0px 12px 32px 4px rgba(0, 0, 0, .04), 0px 8px 20px rgba(0, 0, 0, .08);
    --el-box-shadow-light: 0px 0px 12px rgba(0, 0, 0, .12);
    --el-box-shadow-lighter: 0px 0px 6px rgba(0, 0, 0, .12);
    --el-box-shadow-dark: 0px 16px 48px 16px rgba(0, 0, 0, .08), 0px 12px 32px rgba(0, 0, 0, .12), 0px 8px 16px -8px rgba(0, 0, 0, .16);
}

/* ==================== 基础重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: var(--el-font-family);
    font-size: var(--el-font-size-base);
    color: var(--el-text-color-regular);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--el-fill-color-light);
}

a {
    color: var(--el-color-primary);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: var(--el-color-primary-light-3);
}

/* ==================== 导航栏 ==================== */
.fp-navbar {
    background: var(--el-bg-color);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 60px;
}

.fp-navbar .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.fp-brand {
    font-size: 20px;
    font-weight: 600;
    color: var(--el-text-color-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.fp-brand:hover {
    color: var(--el-color-primary);
}

.fp-nav-menu {
    display: flex;
    gap: 8px;
}

.fp-nav-link {
    padding: 8px 16px;
    border-radius: var(--el-border-radius-base);
    font-size: var(--el-font-size-base);
    color: var(--el-text-color-regular);
    text-decoration: none;
    transition: all 0.3s;
}

.fp-nav-link:hover {
    color: var(--el-color-primary);
    background: var(--el-color-primary-light-9);
}

.fp-nav-link.active {
    color: var(--el-color-primary);
    background: var(--el-color-primary-light-9);
    font-weight: 500;
}

.fp-nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ==================== 按钮 ==================== */
.fp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    font-size: var(--el-font-size-base);
    font-weight: 500;
    line-height: 1;
    border-radius: var(--el-border-radius-base);
    cursor: pointer;
    transition: all 0.3s;
    border: 1px solid transparent;
    outline: none;
    gap: 6px;
}

.fp-btn-primary {
    background: var(--el-color-primary);
    border-color: var(--el-color-primary);
    color: #fff;
}

.fp-btn-primary:hover {
    background: var(--el-color-primary-light-3);
    border-color: var(--el-color-primary-light-3);
    color: #fff;
}

.fp-btn-default {
    background: var(--el-fill-color-blank);
    border-color: var(--el-border-color);
    color: var(--el-text-color-regular);
}

.fp-btn-default:hover {
    border-color: var(--el-color-primary);
    color: var(--el-color-primary);
}

.fp-btn-text {
    background: transparent;
    border-color: transparent;
    color: var(--el-color-primary);
    padding: 8px 12px;
}

.fp-btn-text:hover {
    background: var(--el-color-primary-light-9);
}

.fp-btn-large {
    padding: 12px 24px;
    font-size: var(--el-font-size-medium);
}

.fp-btn-small {
    padding: 6px 12px;
    font-size: var(--el-font-size-small);
}

.fp-btn-round {
    border-radius: var(--el-border-radius-round);
}

/* ==================== 输入框 ==================== */
.fp-input {
    width: 100%;
    padding: 8px 12px;
    font-size: var(--el-font-size-base);
    line-height: 1.5;
    color: var(--el-text-color-regular);
    background: var(--el-fill-color-blank);
    border: 1px solid var(--el-border-color);
    border-radius: var(--el-border-radius-base);
    transition: border-color 0.3s;
    outline: none;
}

.fp-input:focus {
    border-color: var(--el-color-primary);
}

.fp-input::placeholder {
    color: var(--el-text-color-placeholder);
}

.fp-input-group {
    display: flex;
    align-items: center;
}

.fp-input-group .fp-input {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.fp-input-group .fp-btn {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

/* ==================== 卡片 ==================== */
.fp-card {
    background: var(--el-bg-color);
    border-radius: var(--el-border-radius-base);
    border: 1px solid var(--el-border-color-lighter);
    overflow: hidden;
    transition: all 0.3s;
}

.fp-card:hover {
    box-shadow: var(--el-box-shadow-light);
}

.fp-card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--el-border-color-lighter);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.fp-card-title {
    font-size: var(--el-font-size-medium);
    font-weight: 600;
    color: var(--el-text-color-primary);
}

.fp-card-body {
    padding: 20px;
}

/* ==================== 标签 ==================== */
.fp-tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: var(--el-font-size-small);
    border-radius: var(--el-border-radius-base);
    background: var(--el-fill-color);
    color: var(--el-text-color-regular);
    border: 1px solid var(--el-border-color-light);
    cursor: pointer;
    transition: all 0.3s;
}

.fp-tag:hover {
    border-color: var(--el-color-primary);
    color: var(--el-color-primary);
}

.fp-tag.active {
    background: var(--el-color-primary);
    border-color: var(--el-color-primary);
    color: #fff;
}

.fp-tag-primary {
    background: var(--el-color-primary-light-9);
    border-color: var(--el-color-primary-light-5);
    color: var(--el-color-primary);
}

.fp-tag-success {
    background: #f0f9eb;
    border-color: #b3e19d;
    color: var(--el-color-success);
}

.fp-tag-warning {
    background: #fdf6ec;
    border-color: #f3d19e;
    color: var(--el-color-warning);
}

.fp-tag-danger {
    background: #fef0f0;
    border-color: #fab6b6;
    color: var(--el-color-danger);
}

/* ==================== 侧边栏 ==================== */
.fp-sidebar {
    background: var(--el-bg-color);
    border-radius: var(--el-border-radius-base);
    border: 1px solid var(--el-border-color-lighter);
    overflow: hidden;
}

.fp-sidebar-title {
    padding: 16px 20px;
    font-size: var(--el-font-size-base);
    font-weight: 600;
    color: var(--el-text-color-primary);
    border-bottom: 1px solid var(--el-border-color-lighter);
}

.fp-sidebar-menu {
    list-style: none;
    padding: 8px 0;
}

.fp-sidebar-item {
    margin: 4px 0;
}

.fp-sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    color: var(--el-text-color-regular);
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
}

.fp-sidebar-link:hover {
    background: var(--el-fill-color-light);
    color: var(--el-color-primary);
}

.fp-sidebar-link.active {
    background: var(--el-color-primary-light-9);
    color: var(--el-color-primary);
    border-right: 3px solid var(--el-color-primary);
}

.fp-sidebar-link i {
    width: 18px;
    text-align: center;
}

/* ==================== 页面布局 ==================== */
.fp-page {
    padding-top: 60px;
    min-height: 100vh;
}

.fp-page-header {
    background: var(--el-bg-color);
    padding: 20px 0;
    border-bottom: 1px solid var(--el-border-color-lighter);
    margin-bottom: 20px;
}

.fp-page-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--el-text-color-primary);
    margin: 0;
}

.fp-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.fp-main {
    display: flex;
    gap: 20px;
    padding: 20px 0;
}

.fp-content {
    flex: 1;
    min-width: 0;
}

.fp-aside {
    width: 260px;
    flex-shrink: 0;
}

/* ==================== 搜索栏 ==================== */
.fp-search-bar {
    background: linear-gradient(135deg, var(--el-color-primary) 0%, var(--el-color-primary-dark-2) 100%);
    padding: 40px 20px;
    text-align: center;
}

.fp-search-title {
    font-size: 28px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
}

.fp-search-box {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.fp-search-input {
    width: 100%;
    padding: 14px 50px 14px 20px;
    border: none;
    border-radius: var(--el-border-radius-round);
    font-size: var(--el-font-size-base);
    background: rgba(255, 255, 255, 0.95);
    outline: none;
}

.fp-search-input:focus {
    background: #fff;
}

.fp-search-btn {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 38px;
    height: 38px;
    background: var(--el-color-primary);
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s;
}

.fp-search-btn:hover {
    background: var(--el-color-primary-light-3);
}

/* ==================== 瀑布流 ==================== */
.fp-waterfall {
    column-count: 3;
    column-gap: 20px;
}

@media (max-width: 1200px) {
    .fp-waterfall {
        column-count: 2;
    }
}

@media (max-width: 768px) {
    .fp-waterfall {
        column-count: 1;
    }
}

.fp-waterfall-item {
    break-inside: avoid;
    margin-bottom: 16px;
}

/* ==================== 模板卡片 ==================== */
.fp-template-card {
    background: var(--el-bg-color);
    border-radius: var(--el-border-radius-base);
    overflow: hidden;
    border: 1px solid var(--el-border-color-lighter);
    transition: all 0.3s;
    cursor: pointer;
}

.fp-template-card:hover {
    box-shadow: var(--el-box-shadow-light);
    transform: translateY(-4px);
}

.fp-template-image {
    width: 100%;
    display: block;
    background: var(--el-fill-color);
}

.fp-template-info {
    padding: 12px;
}

.fp-template-title {
    font-size: var(--el-font-size-base);
    color: var(--el-text-color-primary);
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.fp-template-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--el-font-size-small);
    color: var(--el-text-color-secondary);
}

/* ==================== 筛选栏 ==================== */
.fp-filter-bar {
    background: var(--el-bg-color);
    border-radius: var(--el-border-radius-base);
    padding: 16px 20px;
    margin-bottom: 16px;
    border: 1px solid var(--el-border-color-lighter);
}

.fp-filter-section {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.fp-filter-section:last-child {
    margin-bottom: 0;
}

.fp-filter-label {
    font-size: var(--el-font-size-small);
    color: var(--el-text-color-secondary);
    white-space: nowrap;
}

.fp-filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* ==================== 空状态 ==================== */
.fp-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--el-text-color-secondary);
}

.fp-empty-icon {
    font-size: 64px;
    color: var(--el-border-color);
    margin-bottom: 16px;
}

.fp-empty-title {
    font-size: var(--el-font-size-medium);
    color: var(--el-text-color-primary);
    margin-bottom: 8px;
}

.fp-empty-desc {
    font-size: var(--el-font-size-base);
    color: var(--el-text-color-secondary);
}

/* ==================== 加载更多 ==================== */
.fp-load-more {
    text-align: center;
    padding: 40px;
}

/* ==================== 页脚 ==================== */
.fp-footer {
    background: var(--el-text-color-primary);
    padding: 30px 0;
    text-align: center;
    margin-top: 40px;
}

.fp-footer p {
    font-size: var(--el-font-size-small);
    color: var(--el-text-color-placeholder);
    margin: 0;
}

/* ==================== 用户下拉菜单 ==================== */
.fp-user-dropdown {
    position: relative;
}

.fp-user-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: var(--el-border-radius-round);
    background: var(--el-fill-color-light);
    cursor: pointer;
    transition: all 0.3s;
}

.fp-user-trigger:hover {
    background: var(--el-fill-color);
}

.fp-user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
}

.fp-user-name {
    font-size: var(--el-font-size-small);
    color: var(--el-text-color-regular);
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.fp-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--el-bg-color);
    border-radius: var(--el-border-radius-base);
    box-shadow: var(--el-box-shadow-light);
    border: 1px solid var(--el-border-color-lighter);
    padding: 8px 0;
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s;
    z-index: 2000;
}

.fp-user-dropdown:hover .fp-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.fp-dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    font-size: var(--el-font-size-base);
    color: var(--el-text-color-regular);
    text-decoration: none;
    transition: all 0.3s;
}

.fp-dropdown-item:hover {
    background: var(--el-fill-color-light);
    color: var(--el-color-primary);
}

.fp-dropdown-divider {
    height: 1px;
    background: var(--el-border-color-lighter);
    margin: 8px 0;
}

/* ==================== 模态框 ==================== */
.fp-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}

.fp-modal-overlay.active {
    display: flex;
}

.fp-modal {
    background: var(--el-bg-color);
    border-radius: var(--el-border-radius-base);
    width: 90%;
    max-width: 480px;
    box-shadow: var(--el-box-shadow);
    overflow: hidden;
}

.fp-modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--el-border-color-lighter);
}

.fp-modal-title {
    font-size: var(--el-font-size-medium);
    font-weight: 600;
    color: var(--el-text-color-primary);
    margin: 0;
}

.fp-modal-body {
    padding: 20px;
}

.fp-modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--el-border-color-lighter);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ==================== 表单 ==================== */
.fp-form-group {
    margin-bottom: 20px;
}

.fp-form-label {
    display: block;
    font-size: var(--el-font-size-small);
    color: var(--el-text-color-regular);
    margin-bottom: 8px;
}

.fp-form-label.required::after {
    content: '*';
    color: var(--el-color-danger);
    margin-left: 4px;
}

.fp-form-error {
    font-size: var(--el-font-size-small);
    color: var(--el-color-danger);
    margin-top: 4px;
}

/* ==================== 统计卡片 ==================== */
.fp-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

@media (max-width: 992px) {
    .fp-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .fp-stats-grid {
        grid-template-columns: 1fr;
    }
}

.fp-stat-card {
    background: var(--el-bg-color);
    border-radius: var(--el-border-radius-base);
    padding: 20px;
    border: 1px solid var(--el-border-color-lighter);
}

.fp-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--el-border-radius-base);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    font-size: 20px;
}

.fp-stat-icon.blue {
    background: var(--el-color-primary-light-9);
    color: var(--el-color-primary);
}

.fp-stat-icon.green {
    background: #f0f9eb;
    color: var(--el-color-success);
}

.fp-stat-icon.orange {
    background: #fdf6ec;
    color: var(--el-color-warning);
}

.fp-stat-icon.red {
    background: #fef0f0;
    color: var(--el-color-danger);
}

.fp-stat-value {
    font-size: 28px;
    font-weight: 600;
    color: var(--el-text-color-primary);
    margin-bottom: 4px;
}

.fp-stat-label {
    font-size: var(--el-font-size-small);
    color: var(--el-text-color-secondary);
}

/* ==================== 快捷入口 ==================== */
.fp-quick-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

@media (max-width: 992px) {
    .fp-quick-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.fp-quick-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px;
    border-radius: var(--el-border-radius-base);
    background: var(--el-fill-color-light);
    text-decoration: none;
    transition: all 0.3s;
}

.fp-quick-item:hover {
    background: var(--el-color-primary);
}

.fp-quick-item:hover .fp-quick-icon,
.fp-quick-item:hover .fp-quick-label {
    color: #fff;
}

.fp-quick-icon {
    font-size: 28px;
    color: var(--el-color-primary);
    margin-bottom: 8px;
    transition: color 0.3s;
}

.fp-quick-label {
    font-size: var(--el-font-size-small);
    color: var(--el-text-color-regular);
    transition: color 0.3s;
}

/* ==================== 登录页面 ==================== */
.fp-login-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--el-fill-color-light);
}

.fp-login-header {
    background: var(--el-bg-color);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
    padding: 0 40px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.fp-login-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.fp-login-box {
    background: var(--el-bg-color);
    border-radius: var(--el-border-radius-base);
    box-shadow: var(--el-box-shadow);
    width: 100%;
    max-width: 420px;
    padding: 40px;
}

.fp-login-header-text {
    text-align: center;
    margin-bottom: 32px;
}

.fp-login-header-text h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--el-text-color-primary);
    margin-bottom: 8px;
}

.fp-login-header-text p {
    font-size: var(--el-font-size-base);
    color: var(--el-text-color-secondary);
}

.fp-login-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    background: var(--el-fill-color-light);
    padding: 4px;
    border-radius: var(--el-border-radius-base);
}

.fp-login-tab {
    flex: 1;
    padding: 10px;
    text-align: center;
    border-radius: var(--el-border-radius-small);
    font-size: var(--el-font-size-base);
    color: var(--el-text-color-secondary);
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    background: transparent;
}

.fp-login-tab.active {
    background: var(--el-bg-color);
    color: var(--el-color-primary);
    font-weight: 500;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}

/* ==================== 工具类 ==================== */
.fp-text-primary { color: var(--el-color-primary); }
.fp-text-success { color: var(--el-color-success); }
.fp-text-warning { color: var(--el-color-warning); }
.fp-text-danger { color: var(--el-color-danger); }
.fp-text-info { color: var(--el-color-info); }

.fp-bg-primary { background: var(--el-color-primary); }
.fp-bg-success { background: var(--el-color-success); }
.fp-bg-warning { background: var(--el-color-warning); }
.fp-bg-danger { background: var(--el-color-danger); }

.fp-mb-0 { margin-bottom: 0; }
.fp-mb-1 { margin-bottom: 8px; }
.fp-mb-2 { margin-bottom: 16px; }
.fp-mb-3 { margin-bottom: 24px; }

.fp-mt-0 { margin-top: 0; }
.fp-mt-1 { margin-top: 8px; }
.fp-mt-2 { margin-top: 16px; }
.fp-mt-3 { margin-top: 24px; }

.fp-ml-auto { margin-left: auto; }
.fp-mr-auto { margin-right: auto; }

.fp-flex { display: flex; }
.fp-flex-between { justify-content: space-between; }
.fp-flex-center { align-items: center; }
.fp-flex-wrap { flex-wrap: wrap; }
.fp-gap-1 { gap: 8px; }
.fp-gap-2 { gap: 16px; }

.fp-text-center { text-align: center; }
.fp-text-right { text-align: right; }

.fp-w-full { width: 100%; }