/* ============================================
   JORGE TRADE INC - 主样式文件
   富有科技感、诗意色彩搭配
   ============================================ */

/* ===== 基础重置与变量定义 ===== */
:root {
    /* 诗意科技感配色方案 */
    --primary-color: #1a1a2e;      /* 深空蓝 - 主背景 */
    --secondary-color: #16213e;    /* 午夜蓝 - 次要背景 */
    --accent-color: #0ea5e9;       /* 科技蓝 - 强调色 */
    --accent-secondary: #8b5cf6;   /* 紫水晶 - 次要强调 */
    --text-primary: #f1f5f9;       /* 主文字色 */
    --text-secondary: #cbd5e1;     /* 次要文字 */
    --text-muted: #94a3b8;         /* 弱化文字 */
    --card-bg: rgba(30, 41, 59, 0.7);  /* 卡片背景 */
    --card-border: rgba(148, 163, 184, 0.2); /* 卡片边框 */
    --hover-glow: rgba(14, 165, 233, 0.3); /* 悬停光效 */
    --shadow-color: rgba(0, 0, 0, 0.5); /* 阴影颜色 */
    
    /* 字体 */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Poppins', sans-serif;
    --font-special: 'Raleway', sans-serif;
    
    /* 过渡效果 */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-slow: 0.8s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* ===== 背景层 ===== */
.background-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: 
        radial-gradient(circle at 20% 50%, rgba(56, 189, 248, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(14, 165, 233, 0.05) 0%, transparent 50%),
        linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    opacity: 0.9;
}

/* 背景网格效果 */
.background-layer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
}

/* ===== 容器 ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== 顶部导航栏 ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(26, 26, 46, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-medium);
}

.header.scrolled {
    padding: 15px 0;
    background: rgba(26, 26, 46, 0.95);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: baseline;
    text-decoration: none;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.8rem;
    transition: var(--transition-fast);
}

.logo-text {
    color: var(--accent-color);
    text-shadow: 0 0 10px rgba(14, 165, 233, 0.5);
}

.logo-subtext {
    font-size: 1.2rem;
    color: var(--accent-secondary);
    margin-left: 5px;
    text-shadow: 0 0 5px rgba(139, 92, 246, 0.5);
}

.logo a:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1rem;
    padding: 8px 0;
    position: relative;
    transition: var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
    transition: var(--transition-fast);
}

.nav-links a:hover {
    color: var(--accent-color);
}

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

.language-switcher {
    display: flex;
    gap: 10px;
    margin-left: 20px;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.lang-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.lang-btn:hover:not(.active) {
    background: rgba(255, 255, 255, 0.2);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
}

/* ===== 英雄区域 ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 600px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-top: 40px;
}

.btn {
    padding: 14px 32px;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    color: white;
    box-shadow: 0 5px 15px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
    transform: translateY(-3px);
}

/* ===== 特色卡片 ===== */
.features {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.section-title p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition-medium);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(139, 92, 246, 0.1));
    opacity: 0;
    transition: var(--transition-medium);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(14, 165, 233, 0.3);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 25px;
    display: inline-block;
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== 页脚 ===== */
.footer {
    background: rgba(15, 23, 42, 0.9);
    padding: 60px 0 30px;
    margin-top: 100px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-info p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.7;
}

.footer-links h3,
.footer-contact h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

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

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-contact p {
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--accent-color);
    width: 20px;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== 页面内容通用样式 ===== */
.page-content {
    padding: 140px 0 80px;
    min-height: calc(100vh - 200px);
}

.page-title {
    text-align: center;
    margin-bottom: 50px;
}

.page-title h1 {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.page-title p {
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* ===== 关于页面样式 ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 10px;
    border: 1px solid var(--card-border);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 5px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== 服务页面样式 ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 40px 30px;
    transition: var(--transition-medium);
    backdrop-filter: blur(10px);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(14, 165, 233, 0.3);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    display: inline-block;
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-features {
    list-style: none;
    margin-top: 20px;
}

.service-features li {
    color: var(--text-secondary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-features li i {
    color: var(--accent-color);
    font-size: 0.8rem;
}

/* ===== 案例展示页面样式 ===== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.case-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition-medium);
    backdrop-filter: blur(10px);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(14, 165, 233, 0.3);
}

.case-image {
    height: 220px;
    overflow: hidden;
}

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

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

.case-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.case-content h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.case-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    flex-grow: 1;
    line-height: 1.6;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.case-tag {
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid rgba(14, 165, 233, 0.3);
}

.case-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
    margin-top: auto;
}

.case-link:hover {
    gap: 12px;
    color: var(--accent-secondary);
}

/* ===== 联系页面样式 ===== */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.8;
}

.contact-details {
    margin-top: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 25px;
}

.contact-icon {
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent-color);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-text h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.contact-text p {
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

.contact-form {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 40px;
    backdrop-filter: blur(10px);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.08);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* ===== 详细案例页面样式 ===== */
.case-detail-header {
    margin-bottom: 50px;
    text-align: center;
}

.case-detail-header h1 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.case-meta {
    display: flex;
    justify-content: center;
    gap: 20px;
    color: var(--text-secondary);
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.case-detail-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
}

.case-gallery {
    margin-bottom: 40px;
}

.main-image {
    height: 400px;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 20px;
}

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

.image-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.image-grid img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.case-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.case-description p {
    margin-bottom: 20px;
}

.case-features {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
}

.case-features h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.case-features ul {
    list-style: none;
}

.case-features li {
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
}

.case-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    margin-top: 40px;
    transition: var(--transition-fast);
}

.back-link:hover {
    gap: 15px;
    color: var(--accent-secondary);
}
/* 使用图片作为背景 */
.background-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background-image: url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.8;
}

/* 保留网格效果（可选） */
.background-layer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    pointer-events: none;
}
/* 首页背景 - 使用图片 */
.index-page .background-layer {
    background-image: url('../images/home-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.9;
}

/* 关于页面背景 - 使用图片 */
.about-page .background-layer {
    background-image: url('../images/about-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.8;
}

/* 服务页面背景 - 使用图片 */
.services-page .background-layer {
    background-image: url('../images/services-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.8;
}

/* 案例展示页面背景 - 使用图片 */
.case-studies-page .background-layer {
    background-image: url('../images/cases-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.8;
}

/* 案例详情页面背景 - 使用图片 */
.case-detail-page .background-layer {
    background-image: url('../images/case-detail-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.8;
}

/* 联系页面背景 - 使用图片 */
.contact-page .background-layer {
    background-image: url('../images/contact-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.8;
}