/* ============================================
   AURAGI - 首页样式文件
   设计风格：极简、高端、安静、克制
   参考：Alo Yoga × 现代武术 × 设计工作室
   ============================================ */

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

:root {
    /* 颜色系统 - 温暖、克制、安静 */
    --color-bg: #faf9f7;           /* 温暖的象牙白背景 */
    --color-bg-pure: #ffffff;      /* 纯白 */
    --color-text: #2c2c2c;         /* 炭黑色文字（非纯黑） */
    --color-text-light: #6b6b6b;   /* 浅灰色文字 */
    --color-accent: #8b8b8b;       /* 中性灰 */
    --color-border: #e8e8e8;       /* 极浅边框 */
    
    /* 字体 - 使用系统字体，无需网络访问 */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* 间距系统 - 大量留白 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-xxl: 8rem;
    
    /* 过渡动画 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-regular);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== 容器 ========== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ========== 桌面端 HEADER 导航栏 ========== */
/* 移动端导航栏样式在 mobile.css 中 */
/* 只对桌面端header应用样式，移动端header由mobile.css控制 */
.header:not(.mobile-header) {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(250, 249, 247, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
}

/* 移动端隐藏桌面导航，桌面端隐藏移动导航 */
@media (max-width: 767px) {
    .header:not(.mobile-header),
    .desktop-header {
        display: none;
    }
}

@media (min-width: 768px) {
    .mobile-header {
        display: none;
    }
}

/* 桌面端nav-container样式，移动端由mobile.css控制 */
.header:not(.mobile-header) .nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-sm) 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* 桌面端logo样式，移动端由mobile.css控制 */
.header:not(.mobile-header) .logo {
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.05em;
    color: var(--color-text);
}

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

.nav-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: var(--font-weight-regular);
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover {
    color: var(--color-text-light);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text);
    transition: var(--transition);
}

.nav-menu a:hover::after {
    width: 100%;
}

/* 桌面端nav-icons和nav-icon样式，移动端由mobile.css控制 */
.header:not(.mobile-header) .nav-icons {
    display: flex;
    gap: 16px;
    align-items: center;
}

.header:not(.mobile-header) .nav-icon {
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.header:not(.mobile-header) .nav-icon:hover {
    color: var(--color-text-light);
    transform: translateY(-2px);
}

.header:not(.mobile-header) .nav-icon svg {
    width: 20px;
    height: 20px;
}

/* ========== HERO 首屏 ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4; /* 降低图片亮度，营造安静感 */
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    max-width: 800px;
}

.hero-headline {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: var(--font-weight-light);
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-subheadline {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: var(--font-weight-regular);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.hero-supporting {
    font-size: clamp(1rem, 2vw, 1.3rem);
    font-weight: 350;
    margin-bottom: var(--spacing-xs);
    color: black;
}

.hero-tagline {
    font-size: clamp(0.9rem, 1.5vw, 1.1rem);
    font-weight: 350;
    color: black;
    margin-bottom: var(--spacing-lg);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== 按钮样式 ========== */
.btn {
    display: inline-block;
    padding: 12px 2.5rem;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.05em;
    transition: var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-text);
    color: var(--color-bg-pure);
    border-color: var(--color-text);
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    background-color: #333;
    border-color: var(--color-text-light);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: var(--color-text);
    color: var(--color-bg-pure);
    transform: translateY(-2px);
}

/* ========== SECTION 通用样式 ========== */
.section {
    padding: var(--spacing-xxl) 0;
    position: relative;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 300; /* PC版默认300 */
    letter-spacing: 0.02em;
    margin-bottom: 8px;
    line-height: 1.2;
    text-align: center;
}

/* 移动端 section-title 字体粗细 */
@media (max-width: 767px) {
    .section-title {
        font-weight: 400;
    }
}

.section-title-large {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: var(--font-weight-light);
    letter-spacing: 0.02em;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
    text-align: center;
}

/* ========== SECTION 1: 品牌价值 - 大图展示 ========== */
.section-philosophy {
    background-color: var(--color-bg-pure);
    text-align: center;
    padding: 0;
}

.philosophy-image-wrapper {
    width: 100%;
    height: 70vh;
    min-height: 500px;
    overflow: hidden;
    background-color: var(--color-border);
}

.philosophy-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.88;
}

.section-philosophy .container {
    padding: var(--spacing-xl) 1rem;
}

.philosophy-content {
    max-width: 700px;
    margin: var(--spacing-md) auto 0;
    text-align: center;
}

.philosophy-text {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: var(--font-weight-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

/* ========== SECTION 2: 核心优势 - 图片网格 ========== */
.section-features {
    background-color: var(--color-bg);
}

.features-grid-image {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
    margin-top: 58px;
}

.feature-image-card {
    text-align: center;
    transition: var(--transition);
}

.feature-image-card:hover {
    transform: translateY(-4px);
}

.feature-image {
    width: 100%;
    height: 400px;
    overflow: hidden;
    background-color: var(--color-border);
    margin-bottom: 21px;
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.feature-image-card:hover .feature-image img {
    transform: scale(1.05);
}

.feature-title-simple {
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--color-text);
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.feature-description {
    font-size: 0.9rem;
    line-height: 1.6;
    color:#333;
    font-weight: var(--font-weight-light);
    padding: 0 var(--spacing-sm);
    letter-spacing: 0.5px;
}

/* ========== SECTION 3: 产品线 - 大图展示 ========== */
.section-products {
    background-color: var(--color-bg-pure);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1rem;
    margin-top: 58px;
}

.product-card-large {
    text-align: center;
    transition: var(--transition);
}

.product-card-large:hover {
    transform: translateY(-4px);
}

.product-image-large {
    width: 100%;
    height: 500px;
    overflow: hidden;
    background-color: var(--color-border);
    margin-bottom: var(--spacing-md);
}

.product-image-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card-large:hover .product-image-large img {
    transform: scale(1.05);
}

.product-title-large {
    font-size: 1.4rem;
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    letter-spacing: 0.05em;
}

.product-description-large {
    font-size: 0.95rem;
    color: #333;
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-light);
    letter-spacing: 0.5px;
}

.product-cta-simple {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.1em;
    transition: var(--transition);
    display: inline-block;
    text-transform: uppercase;
}

.product-cta-simple:hover {
    color: var(--color-text-light);
    transform: translateX(4px);
}

/* ========== SECTION 3.5: 精选产品网格 ========== */
.section-featured-products {
    background-color: var(--color-bg);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 48px;
}

.section-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.05em;
    transition: var(--transition);
}

.section-link:hover {
    color: var(--color-text-light);
    transform: translateX(4px);
}

.products-grid-featured {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 0.75rem;
}

.product-card-featured {
    background-color: var(--color-bg-pure);
    transition: var(--transition);
    overflow: hidden;
}

.product-card-featured:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.product-image-featured {
    width: 100%;
    height: 400px;
    overflow: hidden;
    background-color: var(--color-border);
}

.product-image-featured img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card-featured:hover .product-image-featured img {
    transform: scale(1.05);
}

.product-info {
    padding: 18px;
}

.product-name {
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    letter-spacing: 0.02em;
}

.product-type {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 5px;
    font-weight: var(--font-weight-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.product-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.1em;
    transition: var(--transition);
    display: inline-block;
    text-transform: uppercase;
}

.product-link:hover {
    color: var(--color-text-light);
    transform: translateX(4px);
}

/* ========== SECTION 3.6: 设计展示网格 ========== */
.section-display-products {
    background-color: var(--color-bg-pure);
}

.products-grid-display {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 0.75rem;
    margin-top: var(--spacing-xl);
}

.product-card-display {
    transition: var(--transition);
    overflow: hidden;
}

.product-card-display:hover {
    transform: translateY(-4px);
}

.product-image-display {
    width: 100%;
    height: 450px;
    overflow: hidden;
    background-color: var(--color-border);
}

.product-image-display img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card-display:hover .product-image-display img {
    transform: scale(1.03);
}

/* ========== SECTION 4: 定制哲学 - 大图+简洁文字 ========== */
.section-customization {
    background-color: var(--color-bg);
    text-align: center;
    padding: 0;
}

.customization-image-wrapper {
    width: 100%;
    height: 70vh;
    min-height: 500px;
    overflow: hidden;
    background-color: var(--color-border);
}

.customization-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.88;
}

.customization-content {
    max-width: 800px;
    margin: 0 auto;
}

.section-customization .container {
    padding: var(--spacing-xl) 1rem;
}

.customization-content {
    max-width: 800px;
    margin: var(--spacing-md) auto var(--spacing-lg);
    text-align: center;
}

.customization-text {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: var(--font-weight-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    letter-spacing: 1px;
}

.customization-content .btn {
    margin-top: var(--spacing-md);
}

/* ========== SECTION 5: 面料与工艺 - 全宽图片 ========== */
.section-materials {
    background-color: var(--color-bg-pure);
    padding: 0;
}

.materials-image-full {
    width: 100%;
    height: 60vh;
    min-height: 400px;
    overflow: hidden;
    background-color: var(--color-border);
}

.materials-image-full img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.7;
}

.section-materials .container {
    padding: var(--spacing-xl) 1rem;
}

.materials-content {
    max-width: 700px;
    margin: var(--spacing-md) auto 0;
    text-align: center;
}

.materials-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-light);
}

/* ========== SECTION 6: 精神与气质 - 全宽图片 ========== */
.section-spirit {
    background-color: var(--color-bg);
    padding: 0;
}

.spirit-image-full {
    width: 100%;
    height: 70vh;
    min-height: 500px;
    overflow: hidden;
    background-color: var(--color-border);
}

.spirit-image-full img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.88;
}

.section-spirit .container {
    padding: var(--spacing-xl) 1rem;
}

.spirit-content {
    max-width: 700px;
    margin: var(--spacing-md) auto 0;
    text-align: center;
}

.spirit-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-light);
}

/* ========== SECTION 7: 结尾 CTA ========== */
.section-final-cta {
    background-color: var(--color-bg-pure);
    text-align: center;
    padding: var(--spacing-xxl) 0;
}

.final-cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

/* ========== FOOTER ========== */
.footer {
    background-color: var(--color-text);
    color: var(--color-bg-pure);
    padding: 58px 0 15px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    font-size: 1.2rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: var(--font-weight-light);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    font-size: 0.95rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.05em;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: var(--font-weight-light);
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--color-bg-pure);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    .nav-menu {
        gap: var(--spacing-md);
        font-size: 0.85rem;
    }
    
    .hero-content {
        padding: var(--spacing-lg) 1rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .philosophy-image-wrapper,
    .customization-image-wrapper,
    .spirit-image-full {
        height: 50vh;
        min-height: 300px;
    }
    
    .features-grid-image {
        grid-template-columns: 1fr;
    }
    
    .feature-image {
        height: 300px;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-image-large {
        height: 400px;
    }
    
    .products-grid-featured {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 0.5rem;
    }
    
    .product-image-featured {
        height: 198px;
    }
    
    .products-grid-display {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .product-image-display {
        height: 350px;
    }
    
    .materials-image-full {
        height: 40vh;
        min-height: 250px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .hero-cta,
    .final-cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
}

/* ========== 平滑滚动 ========== */
html {
    scroll-behavior: smooth;
}

/* ========== 动画效果 ========== */
/* 初始状态：元素在视口外时透明 */
.fade-in-up-init {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

/* 动画类：当元素进入视口时触发 */
.fade-in-up {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* ============================================
   服务暂未开通提示模态框样式
   ============================================ */
.service-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

.service-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.service-modal-content {
    position: relative;
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    max-width: 480px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    z-index: 10001;
}

.service-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2rem;
    color: #6b6b6b;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s;
}

.service-modal-close:hover {
    background-color: #f5f5f5;
    color: #2c2c2c;
}

.service-modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c2c2c;
    margin-bottom: 1rem;
    text-align: center;
}

.service-modal-text {
    font-size: 1rem;
    color: #6b6b6b;
    margin-bottom: 2rem;
    text-align: center;
    line-height: 1.6;
}

.service-modal-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.service-modal-form input {
    padding: 0.875rem 1rem;
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-family);
    color: #2c2c2c;
    background: white;
    transition: border-color 0.2s;
}

.service-modal-form input:focus {
    outline: none;
    border-color: #2c2c2c;
}

.service-modal-form input::placeholder {
    color: #9b9b9b;
}

.service-modal-form .btn {
    margin-top: 0.5rem;
}

@media (max-width: 768px) {
    .service-modal-content {
        padding: 2rem 1.5rem;
        max-width: 90%;
    }
    
    .service-modal-title {
        font-size: 1.25rem;
    }
    
    .service-modal-text {
        font-size: 0.9rem;
    }
}