/* 全新设计 - 弘道华阳 */

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 根变量 - 全新配色方案 */
:root {
    /* 主色调 - 深邃蓝紫色系 */
    --primary-dark: #0a0f1b;
    --primary: #1a2332;
    --primary-light: #2a3445;
    
    /* 辅助色 - 渐变金色 */
    --accent-start: #d4af37;
    --accent-end: #f0c14b;
    
    /* 强调色 */
    --highlight: #6366f1;
    --highlight-light: #818cf8;
    
    /* 文本颜色 */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* 背景颜色 */
    --bg-primary: #0a0f1b;
    --bg-secondary: #1e293b;
    --bg-card: #1a2332;
    
    /* 边框和阴影 */
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    
    /* 间距 */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 5rem;
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 50%;
    
    /* 过渡 */
    --transition: all 0.3s ease;
    --transition-slow: all 0.6s ease;
    
    /* 字体 */
    --font-primary: 'Playfair Display', serif;
    --font-secondary: 'Inter', sans-serif;
}

/* 基础样式 */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-secondary);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

/* 布局容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* 导航栏 - 全新设计 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 15, 27, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
    padding: 1rem 0;
}

.navbar.scrolled {
    padding: 0.75rem 0;
    background: rgba(10, 15, 27, 0.98);
    box-shadow: var(--shadow-md);
}

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

.logo a {
    font-family: var(--font-primary);
    font-size: 2rem;
    font-weight: 900;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.logo a:hover {
    transform: translateY(-2px);
}

.logo a span {
    background: linear-gradient(45deg, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
    margin-right: var(--space-md);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
    transition: var(--transition);
    border-radius: 1px;
}

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

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

/* 语言切换器 */
.language-switch {
    position: relative;
    display: inline-block;
}

.language-switch select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding: 0.6rem 2.5rem 0.6rem 1rem;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease-in-out;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path fill='%2394a3b8' d='M6 9L1 4h10z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 0.8rem center;
    background-size: 12px;
}

.language-switch select:hover {
    border-color: var(--accent-start);
    background-color: var(--primary-light);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.language-switch select:focus {
    outline: none;
    border-color: var(--accent-end);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
    background-color: var(--primary-light);
}

.language-switch select option {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: var(--radius-md);
}

/* 移动端语言切换优化 */
@media (max-width: 768px) {
    .language-switch {
        margin-top: 1rem;
        width: 100%;
        max-width: 300px;
    }
    
    .language-switch select {
        width: 100%;
        padding: 0.8rem 2.5rem 0.8rem 1rem;
        font-size: 0.9rem;
    }
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.hamburger:hover {
    background: rgba(255, 255, 255, 0.05);
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translateY(7px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-7px);
}

/* 英雄区 - 全新设计 */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="transparent"/><circle cx="50" cy="50" r="45" fill="transparent" stroke="rgba(255,255,255,0.03)" stroke-width="1"/><circle cx="50" cy="50" r="35" fill="transparent" stroke="rgba(255,255,255,0.02)" stroke-width="1"/><circle cx="50" cy="50" r="25" fill="transparent" stroke="rgba(255,255,255,0.03)" stroke-width="1"/><circle cx="50" cy="50" r="15" fill="transparent" stroke="rgba(255,255,255,0.01)" stroke-width="1"/></svg>');
    opacity: 0.5;
    animation: rotate 60s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-content {
    text-align: center;
    max-width: 1000px;
    padding: var(--space-md);
    position: relative;
    z-index: 2;
    animation: fadeInUp 1.5s ease forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-family: var(--font-primary);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
    line-height: 1.6;
}

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

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-full);
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    gap: 0.5rem;
    border: none;
    cursor: pointer;
    font-family: var(--font-secondary);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
    color: var(--bg-primary);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* 通用区块样式 */
section {
    padding: var(--space-xl) 0;
    background: var(--bg-primary);
    position: relative;
}

/* 价值锚点区 - 全新设计 */
.values-section {
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
    position: relative;
}

.section-title {
    font-family: var(--font-primary);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 价值卡片 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.value-card {
    background: var(--bg-card);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
    transform: scaleX(0);
    transition: var(--transition-slow);
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 255, 255, 0.15);
}

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

.value-icon {
    font-size: 4rem;
    margin-bottom: var(--space-md);
    background: linear-gradient(45deg, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--transition-slow);
}

.value-card:hover .value-icon {
    transform: scale(1.1) rotate(5deg);
}

.value-card h3 {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    font-weight: 800;
}

.value-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .nav-links {
        gap: var(--space-md);
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-lg);
        transition: var(--transition-slow);
        z-index: 999;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-links {
        flex-direction: column;
        gap: var(--space-md);
        margin-right: 0;
    }
    
    .nav-links a {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
}