/* 存存的主页 - 主样式文件 */

/* CSS变量定义 */
:root {
    --primary-color: #FFB6C1;      /* 樱花粉 */
    --secondary-color: #FFF9FB;    /* 奶油白 */
    --accent-color: #E6E6FA;       /* 淡紫 */
    --text-color: #333333;         /* 文字颜色 */
    --bg-color: #FAFAFA;           /* 背景色 */
    --shadow-color: rgba(255, 182, 193, 0.3);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    
    /* 字体 */
    --font-main: 'Noto Sans JP', 'Yu Gothic', '游ゴシック', sans-serif;
    --font-title: 'Noto Sans JP', 'しねきゃぷしょん', cursive;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--text-color);
    background: var(--bg-color);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* 背景轮播 */
.background-slideshow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.background-slideshow .slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 2s ease-in-out;
}

.background-slideshow .slide.active {
    opacity: 0.8;
}

.background-slideshow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(255, 182, 193, 0.1) 0%,
        rgba(230, 230, 250, 0.1) 50%,
        rgba(255, 249, 251, 0.2) 100%
    );
    z-index: 1;
}

/* 樱花容器 */
.sakura-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

/* 主容器 */
.main-container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    padding: var(--spacing-lg);
    backdrop-filter: blur(1px);
}

/* 网站标题 */
.site-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
}

.site-title {
    font-family: var(--font-title);
    margin-bottom: var(--spacing-sm);
}

.title-main {
    display: block;
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 
        0 0 10px rgba(255, 182, 193, 0.5),
        0 0 20px rgba(255, 182, 193, 0.3),
        0 0 30px rgba(255, 182, 193, 0.1);
    margin-bottom: var(--spacing-xs);
}

.title-sub {
    display: block;
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--accent-color);
    letter-spacing: 2px;
}

.site-description {
    font-size: 1.1rem;
    color: var(--text-color);
    opacity: 0.8;
    font-weight: 300;
}

/* 3D卡片效果 */
.card-3d {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 
        0 8px 32px rgba(255, 182, 193, 0.1),
        0 4px 16px rgba(255, 182, 193, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transform: perspective(1000px) rotateX(0deg) rotateY(0deg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.card-3d::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.5s;
}

.card-3d:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(-2deg) translateY(-5px);
    box-shadow: 
        0 16px 64px rgba(255, 182, 193, 0.2),
        0 8px 32px rgba(255, 182, 193, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.card-3d:hover::before {
    left: 100%;
}

/* 欢迎卡片 */
.welcome-card {
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.welcome-card h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.welcome-card p {
    color: var(--text-color);
    opacity: 0.9;
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
}

/* 内容区域 */
.content-area {
    max-width: 1200px;
    margin: 0 auto;
}

.content-section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
    text-shadow: 0 2px 4px rgba(255, 182, 193, 0.3);
}

/* 内容网格 */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
}

/* 悬浮导航 */
.floating-nav {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1000;
}

.nav-bubble {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-sm);
    box-shadow: 
        0 8px 32px rgba(255, 182, 193, 0.2),
        0 4px 16px rgba(255, 182, 193, 0.1);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-item {
    background: transparent;
    border: none;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-color);
    font-family: var(--font-main);
    min-width: 120px;
}

.nav-item:hover {
    background: rgba(255, 182, 193, 0.2);
    transform: translateX(-5px);
}

.nav-item.active {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 12px rgba(255, 182, 193, 0.4);
}

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

.nav-label {
    font-size: 0.9rem;
    font-weight: 400;
}

/* 天气小部件 */
.weather-widget {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    box-shadow: 0 4px 16px rgba(255, 182, 193, 0.1);
    z-index: 999;
}

.weather-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.weather-icon {
    font-size: 1.5rem;
}

.weather-info {
    font-size: 0.8rem;
    line-height: 1.2;
}

.weather-temp {
    font-weight: 500;
    color: var(--primary-color);
}

.weather-desc {
    color: var(--text-color);
    opacity: 0.7;
}

/* 访问统计 */
.visit-stats {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
    color: var(--text-color);
    opacity: 0.8;
    display: flex;
    gap: var(--spacing-sm);
    z-index: 999;
}

/* 管理员入口 */
.admin-entrance {
    position: fixed;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
    z-index: 999;
}

.admin-link {
    display: block;
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    text-decoration: none;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(255, 182, 193, 0.1);
}

.admin-link:hover {
    background: var(--primary-color);
    transform: scale(1.1);
    box-shadow: 0 4px 16px rgba(255, 182, 193, 0.3);
}

/* 网址卡片样式 */
.website-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.website-card .card-content {
    padding: var(--spacing-md);
}

.website-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-sm);
}

.website-icon img {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.website-title {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.website-description {
    color: var(--text-color);
    opacity: 0.8;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

.website-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-size: 0.8rem;
}

.website-category {
    background: var(--accent-color);
    color: var(--text-color);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.website-date {
    color: var(--text-color);
    opacity: 0.6;
}

.website-tags, .software-tags, .note-tags, .portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.tag {
    background: rgba(255, 182, 193, 0.2);
    color: var(--primary-color);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 500;
}

.visit-btn, .download-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
    text-align: center;
}

.visit-btn:hover, .download-btn:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 182, 193, 0.3);
}

/* 软件卡片样式 */
.software-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.software-cover {
    width: 100%;
    height: 120px;
    margin-bottom: var(--spacing-sm);
}

.software-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.software-name {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.software-description {
    color: var(--text-color);
    opacity: 0.8;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

.software-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.8rem;
}

.software-version, .software-size {
    background: var(--accent-color);
    color: var(--text-color);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.software-platforms {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.platform {
    background: rgba(230, 230, 250, 0.3);
    color: var(--accent-color);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 500;
}

/* 笔记时间轴样式 */
.notes-timeline {
    position: relative;
    padding-left: var(--spacing-lg);
}

.notes-timeline::before {
    content: '';
    position: absolute;
    left: var(--spacing-sm);
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-color), var(--accent-color));
}

.note-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.note-item::before {
    content: '';
    position: absolute;
    left: -22px;
    top: var(--spacing-sm);
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--secondary-color);
}

.note-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.note-title {
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 500;
}

.note-meta {
    display: flex;
    gap: var(--spacing-xs);
    font-size: 0.8rem;
    opacity: 0.8;
}

.note-content {
    color: var(--text-color);
    opacity: 0.9;
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

/* 作品集画廊样式 */
.portfolio-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
}

.portfolio-item {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
}

.portfolio-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.view-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
}

.portfolio-info {
    padding: var(--spacing-md);
}

.portfolio-title {
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.portfolio-description {
    color: var(--text-color);
    opacity: 0.8;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

.portfolio-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
    font-size: 0.8rem;
}

.portfolio-type {
    background: var(--accent-color);
    color: var(--text-color);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.portfolio-date {
    color: var(--text-color);
    opacity: 0.6;
}

.portfolio-tools {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.tool {
    background: rgba(230, 230, 250, 0.3);
    color: var(--accent-color);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 500;
}

/* 模态框样式 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal.closing {
    opacity: 0;
    visibility: hidden;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    max-width: 90vw;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 500;
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-color);
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: rgba(255, 182, 193, 0.2);
    color: var(--primary-color);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: calc(90vh - 120px);
}

/* 笔记详情样式 */
.note-detail .modal-content {
    width: 600px;
}

.note-meta-detail {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm);
    background: rgba(255, 182, 193, 0.1);
    border-radius: var(--radius-sm);
}

.note-content-full {
    color: var(--text-color);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    font-size: 1rem;
}

/* 作品集详情样式 */
.portfolio-detail .modal-content {
    width: 800px;
}

.portfolio-image-full {
    width: 100%;
    margin-bottom: var(--spacing-lg);
}

.portfolio-image-full img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.portfolio-description-full {
    color: var(--text-color);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    font-size: 1rem;
}

.portfolio-meta-detail {
    background: rgba(255, 182, 193, 0.1);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-lg);
}

.meta-item {
    margin-bottom: var(--spacing-xs);
    color: var(--text-color);
}

.meta-item strong {
    color: var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-container {
        padding: var(--spacing-md);
    }

    .title-main {
        font-size: 2.5rem;
    }

    .floating-nav {
        bottom: var(--spacing-sm);
        right: var(--spacing-sm);
    }

    .nav-bubble {
        flex-direction: row;
        padding: var(--spacing-xs);
    }

    .nav-item {
        min-width: auto;
        padding: var(--spacing-xs);
    }

    .nav-label {
        display: none;
    }

    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-sm);
    }

    .portfolio-gallery {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-sm);
    }

    .weather-widget {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        font-size: 0.8rem;
    }

    .visit-stats {
        bottom: var(--spacing-sm);
        left: var(--spacing-sm);
        font-size: 0.7rem;
    }

    .admin-entrance {
        top: var(--spacing-sm);
        left: var(--spacing-sm);
    }

    .modal-content {
        width: 95vw !important;
        margin: var(--spacing-sm);
    }

    .modal-body {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .title-main {
        font-size: 2rem;
    }

    .site-description {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .notes-timeline {
        padding-left: var(--spacing-md);
    }

    .note-item::before {
        left: -18px;
        width: 8px;
        height: 8px;
    }
}

/* 性能优化 */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 预加载关键资源 */
.preload {
    position: absolute;
    left: -9999px;
    top: -9999px;
    visibility: hidden;
}

/* 懒加载图片 */
img[data-src] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[data-src].loaded {
    opacity: 1;
}

/* 减少重绘 */
.card-3d,
.nav-item,
.website-card,
.software-card,
.note-item,
.portfolio-item {
    will-change: transform;
    transform: translateZ(0);
}

/* 优化滚动性能 */
.admin-main,
.modal-body {
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
}

/* 打印样式 */
@media print {
    .floating-nav,
    .weather-widget,
    .visit-stats,
    .admin-entrance,
    .sakura-container,
    .background-slideshow {
        display: none !important;
    }

    .main-container {
        background: white !important;
        color: black !important;
    }

    .card-3d {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #FF1493;
        --secondary-color: #FFFFFF;
        --accent-color: #8A2BE2;
        --text-color: #000000;
        --bg-color: #FFFFFF;
    }

    .card-3d {
        border: 2px solid var(--primary-color) !important;
        background: var(--secondary-color) !important;
    }
}

/* 无障碍优化 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 焦点指示器 */
button:focus,
input:focus,
a:focus,
.nav-item:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 跳转链接 */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 10000;
}

.skip-link:focus {
    top: 6px;
}

/* 浏览器兼容性 */
@supports not (backdrop-filter: blur(20px)) {
    .card-3d,
    .nav-bubble,
    .weather-widget,
    .visit-stats,
    .admin-link {
        background: rgba(255, 255, 255, 0.95);
    }
}

@supports not (display: grid) {
    .content-grid {
        display: flex;
        flex-wrap: wrap;
    }

    .content-grid > * {
        flex: 1 1 300px;
        margin: var(--spacing-sm);
    }
}

/* 旧版浏览器回退 */
.no-js .sakura-container,
.no-js .background-slideshow {
    display: none;
}

.no-js .main-container {
    background: linear-gradient(135deg, #FFB6C1, #E6E6FA);
}

/* 加载状态 */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* 错误状态 */
.error {
    color: #d32f2f;
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid rgba(255, 0, 0, 0.2);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    text-align: center;
}

/* 成功状态 */
.success {
    color: #2e7d32;
    background: rgba(0, 255, 0, 0.1);
    border: 1px solid rgba(0, 255, 0, 0.2);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    text-align: center;
}

/* 工具提示 */
.tooltip {
    position: relative;
    cursor: help;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 10000;
}

.tooltip:hover::before {
    opacity: 1;
}