/* 全局样式设置 */
:root {
    /* 设置网站主要配色方案 */
    --color-primary: #ff4081; /* 鲜亮的粉红色 */
    --color-secondary: #3f51b5; /* 深蓝色 */
    --color-accent: #ffeb3b; /* 黄色 */
    --color-text: #212121; /* 主要文本颜色 */
    --color-text-light: #ffffff; /* 浅色文本颜色 */
    --color-background: #ffffff; /* 背景色 */
    --color-background-alt: #f5f5f5; /* 次要背景色 */
    --color-gradient-1: #ff4081; /* 渐变色1 */
    --color-gradient-2: #3f51b5; /* 渐变色2 */
    --color-gradient-3: #00bcd4; /* 渐变色3 */

    /* 字体设置 */
    --font-primary: 'Montserrat', sans-serif; /* 主要字体 */
    --font-accent: 'Playfair Display', serif; /* 强调字体 */
}

/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* HTML和Body基础样式 */
html, body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* 容器样式 */
.container {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 通用链接样式 */
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

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

/* 语言切换栏样式 */
.language-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 10px 20px;
    backdrop-filter: blur(10px);
}

.language-switcher ul {
    display: flex;
    list-style: none;
    gap: 10px;
}

.language-switcher .lang-btn {
    background: none;
    border: none;
    padding: 5px 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.language-switcher .lang-btn:hover {
    background-color: #f0f0f0;
}

.language-switcher .lang-btn.active {
    background-color: var(--color-primary);
    color: white;
}

/* 隐藏非活动语言内容 */
.lang-content.hidden {
    display: none;
}

/* 1. LOVART介绍部分样式 */
#intro {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    padding: 20px;
    background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2), var(--color-gradient-3));
    background-size: 300% 300%;
    animation: gradientAnimation 15s ease infinite;
}

@keyframes gradientAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.artistic-title {
    font-size: 20rem; /* 20rem大号字体 */
    font-family: var(--font-accent);
    font-weight: 800;
    letter-spacing: -5px;
    margin-bottom: 30px;
    background: linear-gradient(90deg, #ff4081, #3f51b5, #00bcd4, #ffeb3b);
    background-size: 300% auto;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: textGradient 10s ease infinite;
    text-shadow: 0px 10px 20px rgba(0, 0, 0, 0.2);
    transform: skew(-5deg);
    line-height: 0.9;
}

@keyframes textGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.intro-content {
    max-width: 800px;
    font-size: 1.5rem;
    color: var(--color-text-light);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* 2. EXPLORE CASES部分样式 */
#explore-cases {
    padding: 100px 20px;
    background-color: var(--color-background);
}

.section-title {
    font-size: 4rem;
    text-align: center;
    margin-bottom: 60px;
    font-family: var(--font-accent);
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 700;
}

/* 不规则网格布局 */
.irregular-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: auto;
    gap: 30px;
    margin-bottom: 50px;
}

.case-item {
    background-color: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
    position: relative;
}

.case-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* 不规则布局定位 */
.item1 {
    grid-column: 1 / span 7;
    grid-row: 1;
}

.item2 {
    grid-column: 8 / span 5;
    grid-row: 1 / span 2;
}

.item3 {
    grid-column: 1 / span 5;
    grid-row: 2;
}

.item4 {
    grid-column: 6 / span 6;
    grid-row: 3;
}

.case-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.case-item:hover .case-image img {
    transform: scale(1.05);
}

.case-content {
    padding: 25px;
}

.case-content h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--color-text);
}

.case-content p {
    color: #606060;
    line-height: 1.6;
}

/* 3. FEATURES部分样式 */
#features {
    padding: 100px 20px;
    background-color: var(--color-background-alt);
}

.video-container {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.video-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.video-item video {
    width: 100%;
    display: block;
}

.video-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: white;
}

.video-caption h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

/* 4. MORE STYLE部分样式 */
#more-style {
    padding: 100px 20px;
    background-color: var(--color-background);
}

.style-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: minmax(200px, auto);
    gap: 20px;
    margin-top: 50px;
}

.style-item {
    overflow: hidden;
    border-radius: 20px;
    position: relative;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.style-item:hover {
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    transform: scale(1.02);
}

.style-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

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

/* 不规则排版布局 */
.style1 {
    grid-column: 1 / span 5;
    grid-row: 1 / span 2;
}

.style2 {
    grid-column: 6 / span 7;
    grid-row: 1;
}

.style3 {
    grid-column: 6 / span 3;
    grid-row: 2;
}

.style4 {
    grid-column: 9 / span 4;
    grid-row: 2;
}

/* 5. INFO部分样式 */
#info {
    padding: 100px 20px;
    background-color: var(--color-background-alt);
}

.info-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.info-box {
    padding: 30px;
    background-color: white;
    border-radius: 20px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.info-box h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    color: var(--color-primary);
}

.info-box h2:after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 50px;
    height: 4px;
    background-color: var(--color-accent);
}

.info-box p {
    margin-bottom: 20px;
    line-height: 1.7;
}

.faq-item {
    margin-bottom: 30px;
}

.faq-item h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--color-secondary);
}

/* 页脚样式 */
footer {
    background-color: #212121;
    color: white;
    padding: 50px 20px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.copyright {
    margin-top: 20px;
    font-size: 0.9rem;
    opacity: 0.7;
}

.copyright p {
    margin: 5px 0;
}

.copyright a {
    color: var(--color-accent);
}

/* 媒体查询 - 平板设备 */
@media (max-width: 1024px) {
    .artistic-title {
        font-size: 12rem;
    }
    
    .irregular-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    
    .item1 {
        grid-column: 1 / span 6;
        grid-row: auto;
    }
    
    .item2 {
        grid-column: 1 / span 6;
        grid-row: auto;
    }
    
    .item3 {
        grid-column: 1 / span 6;
        grid-row: auto;
    }
    
    .item4 {
        grid-column: 1 / span 6;
        grid-row: auto;
    }
    
    .style-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    
    .style1 {
        grid-column: 1 / span 6;
        grid-row: auto;
    }
    
    .style2 {
        grid-column: 1 / span 6;
        grid-row: auto;
    }
    
    .style3 {
        grid-column: 1 / span 3;
        grid-row: auto;
    }
    
    .style4 {
        grid-column: 4 / span 3;
        grid-row: auto;
    }
}

/* 媒体查询 - 移动设备 */
@media (max-width: 768px) {
    .artistic-title {
        font-size: 5rem;
        letter-spacing: -2px;
    }
    
    .intro-content {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2.5rem;
        margin-bottom: 40px;
    }
    
    .style-grid {
        grid-template-columns: 1fr;
    }
    
    .style1, .style2, .style3, .style4 {
        grid-column: 1;
        grid-row: auto;
        height: 300px;
    }
    
    .language-switcher {
        top: 10px;
        right: 10px;
        padding: 8px 15px;
    }
    
    .language-switcher .lang-btn {
        padding: 3px 8px;
        font-size: 12px;
    }
    
    .case-content h3 {
        font-size: 1.4rem;
    }
    
    .info-box h2 {
        font-size: 1.8rem;
    }
}