/* 艾凯伦珠宝官网 - 奢侈品风格优化 */

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

:root {
    /* 奢侈品配色 - 参考Cartier、Tiffany */
    --primary-color: #0a0a0a;
    --secondary-color: #c9a962;
    --accent-color: #d4af37;
    --text-color: #1a1a1a;
    --text-light: #666;
    --text-muted: #999;
    --bg-color: #ffffff;
    --bg-cream: #faf9f7;
    --bg-light: #f5f5f5;
    --border-color: #e8e8e8;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --font-serif: 'Playfair Display', 'Noto Serif SC', Georgia, serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
    font-family: var(--font-sans);
    line-height: 1.8;
    color: var(--text-color);
    background-color: var(--bg-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 导航 - 奢侈品风格 */
.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    height: 80px;
}

.logo h1 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    color: var(--primary-color);
    letter-spacing: 8px;
    text-transform: uppercase;
}

.logo .tagline {
    font-size: 9px;
    color: var(--text-muted);
    letter-spacing: 4px;
    display: block;
    margin-top: -2px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--secondary-color);
    transition: var(--transition);
    transform: translateX(-50%);
}

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

/* Hero区域 - 全屏沉浸式设计 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #faf9f7 0%, #ffffff 50%, #f8f7f5 100%);
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="%23c9a962" stroke-width="0.5" opacity="0.1"/></svg>');
    background-size: 300px;
    opacity: 0.5;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    padding: 60px 40px;
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-family: var(--font-serif);
    color: var(--secondary-color);
    font-size: 14px;
    letter-spacing: 6px;
    margin-bottom: 30px;
    text-transform: uppercase;
    font-weight: 400;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 64px;
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: 40px;
    color: var(--primary-color);
    letter-spacing: 2px;
}

.hero-title .highlight {
    color: var(--secondary-color);
    font-style: italic;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 50px;
    line-height: 2;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 30px;
    justify-content: center;
}

/* 按钮样式 - 奢侈品风格 */
.btn-primary, .btn-secondary, .btn-outline {
    padding: 18px 50px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 3px;
    text-decoration: none;
    text-transform: uppercase;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

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

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--secondary-color);
    transition: var(--transition);
    z-index: -1;
}

.btn-primary:hover::before {
    left: 0;
}

.btn-primary:hover {
    color: #fff;
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

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

.btn-outline {
    background: transparent;
    color: var(--secondary-color);
    border: 1px solid var(--secondary-color);
}

.btn-outline:hover {
    background: var(--secondary-color);
    color: #fff;
}

/* 区块标题 - 优雅排版 */
.section-header {
    text-align: center;
    margin-bottom: 80px;
    padding: 0 20px;
}

.section-tag {
    font-family: var(--font-serif);
    display: inline-block;
    color: var(--secondary-color);
    font-size: 14px;
    letter-spacing: 6px;
    margin-bottom: 25px;
    text-transform: uppercase;
    font-weight: 400;
}

.section-header h2 {
    font-family: var(--font-serif);
    font-size: 52px;
    font-weight: 400;
    color: var(--primary-color);
    margin-bottom: 25px;
    line-height: 1.2;
    letter-spacing: 2px;
}

.section-desc {
    color: var(--text-light);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* 关于Karen - 左右布局 */
.about {
    padding: 120px 0;
    background: var(--bg-cream);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 30px;
    right: -30px;
    bottom: -30px;
    border: 1px solid var(--secondary-color);
    z-index: 0;
}

.about-img {
    width: 100%;
    height: 600px;
    object-fit: cover;
    position: relative;
    z-index: 1;
}

.about-text {
    padding: 40px;
}

.about-text .lead {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    color: var(--primary-color);
    margin-bottom: 30px;
    line-height: 1.5;
    font-style: italic;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 1.9;
    font-size: 15px;
}

.about-roles {
    display: flex;
    gap: 40px;
    margin: 40px 0;
    padding: 30px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.role {
    display: flex;
    align-items: center;
    gap: 12px;
}

.role-icon {
    font-size: 24px;
    color: var(--secondary-color);
}

.role-text {
    font-size: 13px;
    color: var(--text-color);
    letter-spacing: 1px;
}

.about-text blockquote {
    border-left: 2px solid var(--secondary-color);
    padding-left: 30px;
    margin-top: 40px;
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--text-light);
    font-size: 18px;
    line-height: 1.8;
}

/* 行业内幕 - 卡片设计 */
.insights {
    padding: 120px 0;
    background: var(--bg-color);
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.insight-card {
    background: var(--bg-color);
    padding: 0;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.insight-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--secondary-color);
    transform: scaleX(0);
    transition: var(--transition);
}

.insight-card:hover::before {
    transform: scaleX(1);
}

.insight-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
}

.insight-content {
    padding: 40px;
}

.insight-category {
    font-family: var(--font-serif);
    display: inline-block;
    color: var(--secondary-color);
    font-size: 10px;
    letter-spacing: 3px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.insight-card h3 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 20px;
    color: var(--primary-color);
    line-height: 1.4;
}

.insight-card p {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 25px;
    line-height: 1.8;
}

.read-more {
    color: var(--secondary-color);
    text-decoration: none;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    position: relative;
    display: inline-block;
}

.read-more::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--secondary-color);
    transition: var(--transition);
}

.read-more:hover::after {
    width: 100%;
}

.text-center {
    text-align: center;
}

/* FAQ区域 */
.faq {
    padding: 120px 0;
    background: var(--bg-cream);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-color);
    margin-bottom: 20px;
    padding: 35px 45px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--secondary-color);
    box-shadow: 0 10px 40px rgba(0,0,0,0.05);
}

.faq-question {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 400;
    color: var(--primary-color);
    margin-bottom: 15px;
    line-height: 1.5;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.9;
    font-size: 15px;
}

/* 联系区域 */
.contact {
    padding: 120px 0;
    background: var(--bg-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
}

.contact-form {
    background: var(--bg-cream);
    padding: 60px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-size: 11px;
    color: var(--text-color);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid var(--border-color);
    font-size: 14px;
    transition: var(--transition);
    background: var(--bg-color);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.contact-info {
    padding: 60px 40px;
}

.contact-info h3 {
    font-family: var(--font-serif);
    font-size: 28px;
    margin-bottom: 40px;
    color: var(--primary-color);
    font-weight: 400;
}

.contact-info p {
    margin-bottom: 20px;
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.8;
}

.contact-note {
    margin-top: 40px;
    padding: 25px;
    background: #fff8e6;
    border-left: 3px solid var(--secondary-color);
}

.contact-note p {
    margin: 0;
    color: var(--text-color);
    font-size: 14px;
}

/* 页脚 */
.footer {
    background: var(--primary-color);
    color: #fff;
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-brand h3 {
    font-family: var(--font-serif);
    font-size: 28px;
    margin-bottom: 20px;
    font-weight: 400;
    letter-spacing: 4px;
}

.footer-brand p {
    color: #999;
    font-size: 14px;
    line-height: 1.8;
    max-width: 300px;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 12px;
    margin-bottom: 25px;
    color: #fff;
    letter-spacing: 3px;
    text-transform: uppercase;
    font-weight: 500;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #999;
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-contact p {
    color: #999;
    font-size: 14px;
    margin-bottom: 12px;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 40px;
    text-align: center;
}

.footer-bottom p {
    color: #666;
    font-size: 12px;
    margin-bottom: 5px;
    letter-spacing: 1px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .insights-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-desc {
        font-size: 16px;
    }
    
    .insights-grid {
        grid-template-columns: 1fr;
    }
    
    .about-roles {
        flex-direction: column;
        gap: 20px;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
}

/* 图片样式 */
.hero-image {
    width: 100%;
    max-width: 700px;
    height: auto;
    border-radius: 0;
    box-shadow: 0 40px 80px rgba(0,0,0,0.15);
}

.product-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: var(--transition);
}

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

/* 文章页面样式 */
.article-page {
    padding: 160px 0 80px;
    background: var(--bg-color);
}

.article-header {
    text-align: center;
    margin-bottom: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.article-category {
    font-family: var(--font-serif);
    display: inline-block;
    color: var(--secondary-color);
    font-size: 11px;
    letter-spacing: 4px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.article-header h1 {
    font-family: var(--font-serif);
    font-size: 42px;
    font-weight: 400;
    color: var(--primary-color);
    margin-bottom: 20px;
    line-height: 1.3;
}

.article-meta {
    color: var(--text-muted);
    font-size: 13px;
    letter-spacing: 1px;
}

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

.article-content .lead {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    color: var(--primary-color);
    margin-bottom: 40px;
    line-height: 1.6;
    font-style: italic;
    text-align: center;
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.article-content h2 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    color: var(--primary-color);
    margin: 50px 0 25px;
    line-height: 1.4;
}

.article-content h3 {
    font-size: 20px;
    font-weight: 500;
    color: var(--primary-color);
    margin: 35px 0 20px;
}

.article-content p {
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 20px;
    font-size: 16px;
}

.article-content ul,
.article-content ol {
    margin-bottom: 25px;
    padding-left: 30px;
}

.article-content li {
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 12px;
    font-size: 15px;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 40px 0;
    font-size: 14px;
}

.comparison-table th,
.comparison-table td {
    padding: 18px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--bg-cream);
    font-weight: 500;
    color: var(--primary-color);
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.comparison-table td {
    color: var(--text-light);
}

.article-cta {
    text-align: center;
    margin-top: 60px;
    padding: 50px;
    background: var(--bg-cream);
    border: 1px solid var(--border-color);
}

.article-cta p {
    font-family: var(--font-serif);
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 25px;
    font-style: italic;
}

/* 添加Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600&family=Playfair+Display:ital,wght@0,400;0,500;1,400&display=swap');