/* 
 * 全局样式表 - 风尚视界
 * 遵循极简主义与现代美学原则
 * 纯CSS3实现，无外部框架依赖
 */

:root {
    /* 色彩系统 */
    --color-bg: #ffffff;
    --color-bg-alt: #f9f9f9;
    --color-text-primary: #333333;
    --color-text-secondary: #666666;
    --color-text-light: #999999;
    --color-border: #e5e5e5;
    --color-accent: #d4d4d4;
    
    /* 字体系统 */
    --font-primary: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    
    /* 间距系统 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* 动画与过渡 */
    --transition-base: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: all 0.8s ease-out;
}

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

html {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg);
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

img {
    display: block;
    max-width: 100%;
    height: auto;
    object-fit: cover;
}

ul {
    list-style: none;
}

/* 导航栏 */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.nav-container {
    width: 90%;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-text-primary);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding: 5px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text-primary);
    transition: var(--transition-base);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* 移动端菜单按钮（默认隐藏，小屏显示） */
.menu-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
}

/* 主容器 */
main {
    padding-top: 80px; /* 避开固定导航 */
    min-height: 100vh;
}

section {
    padding: var(--spacing-lg) 0;
    overflow: hidden;
}

.container {
    width: 90%;
    max-width: 1400px;
    margin: 0 auto;
}

/* 通用排版 */
.section-title {
    font-size: 2rem;
    font-weight: 300;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    letter-spacing: 3px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background: var(--color-text-primary);
    margin: var(--spacing-sm) auto 0;
}

.text-center { text-align: center; }
.text-light { color: var(--color-text-secondary); }
.text-xs { font-size: 0.8rem; letter-spacing: 1px; text-transform: uppercase; }

/* 首页：全屏轮播 */
.hero-slider {
    height: calc(100vh - 80px);
    position: relative;
    overflow: hidden;
    padding: 0;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s ease;
    z-index: 1;
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%; /* 聚焦人物 */
}

.slide-content {
    position: absolute;
    bottom: 15%;
    left: 10%;
    z-index: 3;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    transform: translateY(20px);
    opacity: 0;
    transition: all 1s ease 0.5s;
}

.slide.active .slide-content {
    transform: translateY(0);
    opacity: 1;
}

.slide-title {
    font-size: 3rem;
    font-weight: 300;
    letter-spacing: 5px;
    margin-bottom: var(--spacing-xs);
}

.slide-desc {
    font-size: 1.1rem;
    letter-spacing: 2px;
    font-weight: 300;
}

.slider-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 10;
}

.indicator {
    width: 40px;
    height: 2px;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition-base);
}

.indicator.active {
    background: #fff;
}

/* 首页：季节精选 */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.collection-item {
    position: relative;
    overflow: hidden;
}

.img-wrapper {
    overflow: hidden;
    width: 100%;
    aspect-ratio: 3/4;
    margin-bottom: var(--spacing-sm);
    background-color: #f0f0f0; /* 图片加载占位 */
}

.img-wrapper img {
    width: 100%;
    height: 100%;
    transition: transform 0.8s ease;
}

.collection-item:hover .img-wrapper img {
    transform: scale(1.05);
}

.collection-info h3 {
    font-size: 1.2rem;
    font-weight: 400;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.collection-info p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* 首页：过渡区域 */
.transition-area {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-xl) 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.quote-text {
    font-size: 1.5rem;
    font-weight: 300;
    max-width: 600px;
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-style: italic;
    color: var(--color-text-primary);
}

.btn-explore {
    display: inline-block;
    padding: 12px 30px;
    border: 1px solid var(--color-text-primary);
    color: var(--color-text-primary);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 2px;
    transition: var(--transition-base);
    background: transparent;
}

.btn-explore:hover {
    background: var(--color-text-primary);
    color: #fff;
}

/* 风格档案页面 */
.style-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.style-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.style-row:nth-child(even) {
    direction: rtl; /* 交错布局 */
}

.style-row:nth-child(even) .style-content {
    direction: ltr; /* 文字方向还原 */
}

.style-images {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.style-images img:first-child {
    grid-column: span 2;
    aspect-ratio: 16/9;
}

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

.style-content h2 {
    font-size: 1.8rem;
    font-weight: 300;
    margin-bottom: var(--spacing-sm);
}

.style-content p {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* 风格档案：细节网格 */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.detail-item {
    aspect-ratio: 1;
    overflow: hidden;
    position: relative;
}

.detail-item img {
    width: 100%;
    height: 100%;
    transition: transform 0.6s ease;
}

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

/* 设计哲学页面 */
.magazine-layout {
    margin-bottom: var(--spacing-xl);
}

.visual-story {
    display: flex;
    min-height: 80vh;
}

.story-img {
    flex: 1;
    position: relative;
}

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

.story-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-lg);
    background: #fff;
}

.story-text h2 {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: var(--spacing-md);
}

.story-text p {
    font-size: 1.1rem;
    max-width: 400px;
    color: var(--color-text-secondary);
}

/* 色彩故事板块 */
.color-palette-section {
    padding: var(--spacing-lg) 0;
    background: var(--color-bg-alt);
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.color-card {
    background: #fff;
    padding: var(--spacing-sm);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.color-preview {
    aspect-ratio: 4/5;
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.color-strip {
    height: 40px;
    width: 100%;
    margin-bottom: var(--spacing-xs);
    display: flex;
}

.swatch {
    flex: 1;
    height: 100%;
}

.color-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    text-align: center;
    margin-top: var(--spacing-sm);
}

/* 页脚 */
footer {
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-xl);
    text-align: center;
}

.footer-content {
    font-size: 0.8rem;
    color: var(--color-text-light);
    letter-spacing: 2px;
}

/* 动画工具类 */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式媒体查询 */
@media (max-width: 1024px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 5rem;
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .slide-title {
        font-size: 2.5rem;
    }
    
    .visual-story {
        flex-direction: column;
    }
    
    .story-img, .story-text {
        flex: auto;
        min-height: 50vh;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* 移动端暂简化为隐藏，实际可做汉堡菜单 */
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .style-row, .style-row:nth-child(even) {
        grid-template-columns: 1fr;
        direction: ltr;
    }
    
    .detail-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .slide-title {
        font-size: 2rem;
    }
    
    .slide-content {
        left: 5%;
        right: 5%;
        text-align: center;
    }
}

/* 动态槽位占位符 (隐藏) */
.slot-placeholder {
    display: none;
}