/* common.css - 公共样式文件 */

/* CSS变量定义 */
:root {
    /* 颜色变量 */
    --color-primary: #8B4513;
    --color-secondary: #CD853F;
    --color-accent: #D2691E;
    --color-light: #FAF0E6;
    --color-dark: #5D4037;
    --color-success: #4CAF50;
    --color-warning: #FF9800;
    --color-error: #F44336;
    
    /* 布局变量 */
    --container-width: 1200px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* 字体变量 */
    --font-family-base: 'Noto Serif SC', 'Microsoft YaHei', serif;
    --font-family-heading: 'Noto Serif SC', Georgia, serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* 阴影变量 */
    --shadow-sm: 0 2px 4px rgba(93, 64, 55, 0.1);
    --shadow-md: 0 4px 8px rgba(93, 64, 55, 0.1);
    --shadow-lg: 0 8px 16px rgba(93, 64, 55, 0.1);
    --shadow-xl: 0 12px 24px rgba(93, 64, 55, 0.15);
    
    /* 圆角变量 */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* 过渡变量 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}
/* 安全相关样式 */
.hide-sensitive {
    filter: blur(5px);
    transition: filter 0.3s ease;
}

.hide-sensitive:hover {
    filter: none;
}

/* 防止文本选择 */
.no-selection {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* 防止拖拽 */
.no-drag {
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    user-drag: none;
}
/* 图片优化 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

.lazy-image {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lazy-image.loaded {
    opacity: 1;
}

/* 响应式图片 */
.responsive-image {
    width: 100%;
    height: auto;
}

/* 背景图片懒加载 */
.lazy-bg {
    background-image: none !important;
    background-color: #f0f0f0;
}

.lazy-bg.loaded {
    background-image: inherit !important;
}
/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-base);
    font-size: 1rem;
    line-height: var(--line-height-base);
    color: var(--color-dark);
    background-color: var(--color-light);
    min-height: 100vh;
}

/* 容器类 */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    width: 100%;
}

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.1rem; }

/* 段落和文本 */
p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent);
}

.text-muted {
    color: #888;
    font-size: 0.9rem;
}

/* 按钮基础样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid transparent;
    border-radius: var(--border-radius-md);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    gap: var(--spacing-sm);
    min-height: 44px;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: white;
    border-color: var(--color-secondary);
}

.btn-secondary:hover {
    background-color: #b3712e;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: var(--spacing-sm);
    border-radius: 50%;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.9rem;
    min-height: 36px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
    min-height: 52px;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* 卡片基础样式 */
.card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(139, 69, 19, 0.1);
    transition: all var(--transition-normal);
    margin-bottom: var(--spacing-lg);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-header {
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(139, 69, 19, 0.1);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.card-body {
    margin-bottom: var(--spacing-md);
}

.card-footer {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(139, 69, 19, 0.1);
    margin-top: var(--spacing-md);
}

/* 表单基础样式 */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
    font-weight: 500;
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid rgba(139, 69, 19, 0.2);
    border-radius: var(--border-radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-fast);
    background-color: white;
    color: var(--color-dark);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(210, 105, 30, 0.1);
}

.form-control::placeholder {
    color: #aaa;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235D4037' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    background-size: 16px;
    padding-right: calc(var(--spacing-md) * 2 + 16px);
}

/* 工具类 */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.align-end { align-items: flex-end; }

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }
.gap-5 { gap: var(--spacing-xl); }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.rounded { border-radius: var(--border-radius-md); }
.rounded-lg { border-radius: var(--border-radius-lg); }
.rounded-circle { border-radius: 50%; }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.bg-light { background-color: var(--color-light); }
.bg-white { background-color: white; }
.bg-primary { background-color: var(--color-primary); color: white; }
.bg-secondary { background-color: var(--color-secondary); color: white; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }
.text-light { color: var(--color-light); }
.text-dark { color: var(--color-dark); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }

.font-sm { font-size: 0.9rem; }
.font-lg { font-size: 1.1rem; }
.font-xl { font-size: 1.25rem; }

.fw-normal { font-weight: 400; }
.fw-medium { font-weight: 500; }
.fw-bold { font-weight: 600; }

/* 通知样式 */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--color-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    max-width: 400px;
    z-index: 9999;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.notification-success { border-left-color: var(--color-success); }
.notification-warning { border-left-color: var(--color-warning); }
.notification-error { border-left-color: var(--color-error); }
.notification-info { border-left-color: var(--color-secondary); }

.notification-icon {
    font-size: 1.2rem;
}

.notification-content {
    flex: 1;
}

.notification-close {
    background: none;
    border: none;
    color: #aaa;
    cursor: pointer;
    padding: var(--spacing-xs);
    font-size: 1rem;
}

.notification-close:hover {
    color: var(--color-dark);
}

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid rgba(139, 69, 19, 0.1);
    border-radius: 50%;
    border-top-color: var(--color-primary);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(250, 240, 230, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
}

/* 导航样式 */
.navbar {
    background-color: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-item {
    position: relative;
}

.nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-dark);
    text-decoration: none;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

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

.nav-link.active {
    background-color: var(--color-primary);
    color: white;
}

/* 响应式工具 */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .d-mobile-none { display: none; }
    .d-mobile-block { display: block; }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        bottom: 0;
        width: 80%;
        max-width: 300px;
        background: white;
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        padding: var(--spacing-xl) var(--spacing-lg);
        transition: right var(--transition-normal);
        z-index: 999;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .mobile-menu-toggle {
        display: block;
        background: none;
        border: none;
        font-size: 1.5rem;
        color: var(--color-dark);
        cursor: pointer;
        padding: var(--spacing-xs);
    }
}

@media (min-width: 769px) {
    .d-desktop-none { display: none; }
    .d-desktop-block { display: block; }
    
    .mobile-menu-toggle {
        display: none;
    }
}

/* 网格系统 */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
    .grid-4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 576px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* 禅意设计元素 */
.lotus-icon {
    width: 24px;
    height: 24px;
    background: radial-gradient(circle at 30% 30%, var(--color-primary), var(--color-accent));
    border-radius: 50%;
    position: relative;
}

.lotus-icon::before,
.lotus-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    opacity: 0.3;
}

.lotus-icon::before {
    transform: scale(1.5);
}

.lotus-icon::after {
    transform: scale(2);
}

/* 分割线 */
.divider {
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(139, 69, 19, 0.2), transparent);
    margin: var(--spacing-xl) 0;
}

/* 页脚样式 */
.footer {
    background-color: var(--color-dark);
    color: white;
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xl);
}

.footer a {
    color: var(--color-light);
}

.footer a:hover {
    color: white;
}

/* 浮动管理按钮 */
.admin-float-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: white;
    border: none;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    z-index: 100;
    transition: all var(--transition-normal);
}

.admin-float-btn:hover {
    background-color: var(--color-accent);
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}