/* =====================================================
   遂宁市易府商贸酒业有限公司 - 企业官网样式表
   设计理念：新中式轻奢风格
   高级感配色：酒红色 + 香槟金
   ===================================================== */

/* CSS 变量定义 - 便于统一管理和后期调整 */
:root {
    /* 主色调 - 勃艮第酒红 */
    --primary-color: #68181F;
    --primary-light: #8B2635;
    --primary-dark: #4A0F15;
    
    /* 辅助色 - 香槟金 */
    --accent-color: #D4AF37;
    --accent-light: #E5C158;
    --accent-dark: #B8932A;
    
    /* 中性色 */
    --text-primary: #1A1A1A;
    --text-secondary: #555555;
    --text-light: #888888;
    --text-muted: #AAAAAA;
    
    /* 背景色 */
    --bg-primary: #FFFFFF;
    --bg-secondary: #FAFAFA;
    --bg-tertiary: #F5F5F5;
    --bg-dark: #1A1A1A;
    
    /* 渐变效果 */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    --gradient-gold: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    --gradient-dark: linear-gradient(180deg, rgba(26, 26, 26, 0.9) 0%, rgba(26, 26, 26, 0.95) 100%);
    --gradient-overlay: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
    
    /* 阴影系统 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    --shadow-gold: 0 8px 25px rgba(212, 175, 55, 0.3);
    
    /* 字体系统 */
    --font-heading: 'Noto Serif SC', 'Playfair Display', serif;
    --font-body: 'Noto Sans SC', 'Inter', sans-serif;
    
    /* 过渡效果 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
}

/* =====================================================
   全局样式重置
   ===================================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

/* 选中文本样式 */
::selection {
    background-color: var(--primary-color);
    color: #FFFFFF;
}

/* 容器 */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 30px;
}

/* 间距系统 */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

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

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-gold);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-top: 25px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* =====================================================
   导航栏 - 高级感设计
   ===================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent;
    transition: all var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header.scrolled .nav-logo,
.header.scrolled .nav-link {
    color: var(--text-primary);
}

.header.scrolled .nav-link::after {
    background-color: var(--primary-color);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
    transition: height var(--transition-normal);
}

.header.scrolled .nav {
    height: 70px;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: #FFFFFF;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: color var(--transition-normal);
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--accent-color);
    transition: transform var(--transition-normal);
}

.nav-logo:hover .logo-icon {
    transform: rotate(15deg);
}

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

.nav-list {
    display: flex;
    list-style: none;
    gap: 50px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    position: relative;
    padding: 8px 0;
    transition: all var(--transition-normal);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
    color: #FFFFFF;
}

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

/* 导航栏按钮 */
.nav-cta {
    margin-left: 30px;
    padding: 12px 28px;
    background: var(--gradient-gold);
    color: var(--bg-dark);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

/* 移动端菜单按钮 */
.nav-close,
.nav-toggle {
    display: none;
    color: #FFFFFF;
    cursor: pointer;
    background: none;
    border: none;
    padding: 5px;
    transition: transform var(--transition-normal);
}

.nav-toggle:hover {
    transform: scale(1.1);
}

.nav-close span,
.nav-toggle span {
    font-size: 1.8rem;
}

/* =====================================================
   首屏区域 (Hero Section) - 高级动态效果
   ===================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    overflow: hidden;
}

/* 动态背景效果 */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(212, 175, 55, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 0, 0, 0.1) 0%, transparent 70%);
    animation: gradientPulse 8s ease-in-out infinite;
}

@keyframes gradientPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* 装饰性光点 */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 25%),
        radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.08) 0%, transparent 25%);
    background-size: 60px 60px;
    animation: floatParticles 20s linear infinite;
}

@keyframes floatParticles {
    0% { transform: translateY(0) translateX(0); }
    100% { transform: translateY(-60px) translateX(60px); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #FFFFFF;
    max-width: 900px;
    padding: 20px;
}

/* 主标题动画 */
.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 25px;
    letter-spacing: 3px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.3rem;
    font-weight: 300;
    color: var(--accent-color);
    margin-bottom: 20px;
    letter-spacing: 8px;
    text-transform: uppercase;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-description {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 50px;
    line-height: 2;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 25px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

/* 按钮样式 - 高级感 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 40px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--bg-dark);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(212, 175, 55, 0.4);
}

.btn-outline {
    background: transparent;
    color: #FFFFFF;
    border: 2px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #FFFFFF;
    transform: translateY(-3px);
}

/* 滚动提示动画 */
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce 2s infinite;
}

.scroll-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color var(--transition-normal);
}

.scroll-link:hover {
    color: var(--accent-color);
}

.scroll-icon {
    width: 26px;
    height: 44px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 13px;
    margin-bottom: 10px;
    position: relative;
    transition: border-color var(--transition-normal);
}

.scroll-link:hover .scroll-icon {
    border-color: var(--accent-color);
}

.scroll-icon::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: var(--accent-color);
    border-radius: 2px;
    animation: scrollDown 1.5s infinite;
}

/* =====================================================
   关于我们 - 卡片式设计
   ===================================================== */
.about {
    background-color: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

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

.about-text {
    display: flex;
    flex-direction: column;
    gap: 35px;
    position: relative;
    z-index: 1;
}

.about-card {
    background-color: var(--bg-primary);
    padding: 35px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border-left: 4px solid var(--primary-color);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, transparent 50%, rgba(212, 175, 55, 0.05) 50%);
    transition: all var(--transition-normal);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.about-card:hover::before {
    width: 150px;
    height: 150px;
}

.about-card .card-icon {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 18px;
    display: block;
}

.about-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.about-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

/* 图片区域 */
.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.image-placeholder {
    width: 100%;
    max-width: 450px;
    aspect-ratio: 1;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 70%
    );
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: rotate(45deg) translateY(0); }
    100% { transform: rotate(45deg) translateY(200px); }
}

.placeholder-content {
    text-align: center;
    color: #FFFFFF;
    position: relative;
    z-index: 1;
}

.placeholder-icon {
    font-size: 5rem;
    color: var(--accent-color);
    display: block;
    margin-bottom: 25px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.placeholder-content p {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.placeholder-en {
    font-size: 1rem !important;
    font-weight: 300 !important;
    letter-spacing: 5px;
    opacity: 0.9;
    text-transform: uppercase;
}

/* =====================================================
   合规经营 - 网格布局卡片
   ===================================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background-color: var(--bg-primary);
    padding: 45px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    border-top: 3px solid transparent;
}

.feature-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-gold);
    transition: width var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--primary-color);
}

.feature-card:hover::after {
    width: 100%;
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 25px;
    display: block;
    transition: transform var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    color: var(--accent-color);
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 18px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 统计区域 */
.statistics {
    background: var(--bg-tertiary);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.statistics::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

.statistics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    line-height: 1;
}

.stat-number::after {
    content: '+';
    font-size: 2rem;
    color: var(--accent-color);
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 合规声明区域 */
.compliance {
    background: var(--gradient-primary);
    color: #FFFFFF;
    position: relative;
    overflow: hidden;
}

.compliance::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 30% 50%, rgba(212, 175, 55, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
}

.compliance-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.compliance-icon {
    font-size: 3.5rem;
    color: var(--accent-color);
    margin-bottom: 25px;
    display: block;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.compliance-content h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 25px;
}

.compliance-content p {
    font-size: 1.05rem;
    line-height: 2;
    color: rgba(255, 255, 255, 0.9);
}

/* =====================================================
   联系我们 - 双栏布局
   ===================================================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 70px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 25px;
    padding: 30px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.contact-card:hover {
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-md);
    border-color: rgba(212, 175, 55, 0.2);
    transform: translateX(10px);
}

.contact-icon {
    font-size: 1.8rem;
    color: var(--primary-color);
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.contact-card:hover .contact-icon {
    background: var(--gradient-gold);
    color: var(--bg-dark);
    transform: scale(1.1);
}

.contact-details h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.contact-details p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 地图容器 */
.contact-map {
    width: 100%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.contact-map iframe {
    display: block;
    width: 100%;
    height: 550px;
    border: none;
    transition: transform var(--transition-normal);
}

.contact-map:hover iframe {
    transform: scale(1.02);
}

/* =====================================================
   页脚 - 高级设计
   ===================================================== */
.footer {
    background-color: var(--bg-dark);
    color: #FFFFFF;
    padding: 80px 0 40px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 50px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: #FFFFFF;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    transition: color var(--transition-normal);
}

.footer-logo:hover {
    color: var(--accent-color);
}

.footer-description {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
}

.footer-links h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 25px;
    color: #FFFFFF;
    position: relative;
    display: inline-block;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent-color);
}

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

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-links a::before {
    content: '→';
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-normal);
    color: var(--accent-color);
}

.footer-links a:hover {
    color: #FFFFFF;
    padding-left: 5px;
}

.footer-links a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

/* 页脚底部 */
.footer-bottom {
    text-align: center;
    padding-top: 30px;
}

.footer-bottom p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 10px;
}

.compliance-note {
    font-size: 0.85rem !important;
    color: rgba(255, 255, 255, 0.3) !important;
}

/* =====================================================
   动画关键帧
   ===================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-15px);
    }
    60% {
        transform: translateX(-50%) translateY(-7px);
    }
}

@keyframes scrollDown {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(12px);
    }
}

/* 滚动显示动画类 */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease;
}

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

/* =====================================================
   响应式设计 - 多设备适配
   ===================================================== */

/* 大屏幕 (> 1280px) */
@media screen and (min-width: 1281px) {
    .container {
        max-width: 1300px;
    }
}

/* 平板和小型桌面 (1024px - 1280px) */
@media screen and (max-width: 1280px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content,
    .contact-content {
        gap: 50px;
    }
}

/* 平板设备 (768px - 1024px) */
@media screen and (max-width: 1024px) {
    .section {
        padding: 80px 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        letter-spacing: 5px;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .feature-card {
        padding: 35px 20px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .about-image {
        order: -1;
    }
    
    .image-placeholder {
        max-width: 350px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .contact-map iframe {
        height: 450px;
    }
}

/* 移动设备 (< 768px) */
@media screen and (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    
    .container {
        padding: 0 20px;
    }
    
    /* 导航栏 */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 350px;
        height: 100vh;
        background: linear-gradient(180deg, var(--primary-dark) 0%, var(--bg-dark) 100%);
        flex-direction: column;
        justify-content: center;
        transition: right 0.4s ease;
        padding: 40px;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
    }
    
    .nav-menu.show {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 35px;
        text-align: center;
    }
    
    .nav-link {
        font-size: 1.1rem;
    }
    
    .nav-cta {
        margin: 30px 0 0;
        width: 100%;
    }
    
    .nav-close {
        display: block;
        position: absolute;
        top: 25px;
        right: 25px;
        color: #FFFFFF;
    }
    
    .nav-toggle {
        display: block;
    }
    
    /* 首屏 */
    .hero {
        min-height: 600px;
    }
    
    .hero-title {
        font-size: 2rem;
        letter-spacing: 2px;
        margin-bottom: 20px;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        letter-spacing: 4px;
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: 35px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        padding: 14px 30px;
    }
    
    .hero-scroll {
        bottom: 25px;
    }
    
    /* 章节标题 */
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
    }
    
    /* 关于我们 */
    .about-card {
        padding: 25px;
    }
    
    .about-card h3 {
        font-size: 1.15rem;
    }
    
    .image-placeholder {
        max-width: 280px;
    }
    
    .placeholder-icon {
        font-size: 3.5rem;
    }
    
    .placeholder-content p {
        font-size: 1.2rem;
    }
    
    /* 合规经营 */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature-card {
        padding: 30px 25px;
    }
    
    .feature-icon {
        font-size: 2.5rem;
    }
    
    .compliance-content h3 {
        font-size: 1.4rem;
    }
    
    /* 联系我们 */
    .contact-card {
        padding: 20px;
        gap: 15px;
    }
    
    .contact-icon {
        width: 45px;
        height: 45px;
        font-size: 1.4rem;
    }
    
    .contact-map iframe {
        height: 400px;
        border-radius: var(--radius-md);
    }
    
    /* 页脚 */
    .footer {
        padding: 60px 0 30px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-links {
        width: 100%;
    }
    
    .footer-links h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-links ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px 30px;
    }
    
    .footer-links li {
        margin-bottom: 0;
    }
}

/* 统计区域响应式 */
@media screen and (max-width: 1024px) {
    .statistics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

@media screen and (max-width: 768px) {
    .statistics {
        padding: 60px 0;
    }
    
    .statistics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .stat-item {
        padding: 25px 15px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-label {
        font-size: 0.9rem;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
}

@media screen and (max-width: 480px) {
    .statistics-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-item {
        padding: 20px;
    }
    
    .stat-number {
        font-size: 2.2rem;
    }
}

/* 小屏手机 (< 480px) */
@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 1.6rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
        letter-spacing: 3px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .section-header {
        margin-bottom: 50px;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .about-card,
    .contact-card {
        padding: 20px;
    }
    
    .contact-map iframe {
        height: 350px;
    }
    
    .footer-links ul {
        flex-direction: column;
        align-items: center;
    }
}

/* =====================================================
   返回顶部按钮
   ===================================================== */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-gold);
    color: var(--bg-dark);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    text-decoration: none;
    box-shadow: var(--shadow-gold);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 15px 35px rgba(212, 175, 55, 0.4);
}

.back-to-top i {
    transition: transform var(--transition-fast);
}

.back-to-top:hover i {
    transform: translateY(-3px);
}

/* =====================================================
   扫光动画效果 - 从左到右一闪而过
   ===================================================== */

/* 导航栏Logo扫光效果 */
.logo-shine {
    position: relative;
    display: inline-block;
    background: linear-gradient(
        120deg,
        transparent 0%,
        rgba(255, 255, 255, 0.4) 50%,
        transparent 100%
    );
    background-size: 200% 100%;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-position: 100% 0;
    animation: logoShine 4s ease-in-out infinite;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo-shine::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.5),
        transparent
    );
    transform: skewX(-20deg);
    animation: logoSweep 3s ease-in-out infinite;
    pointer-events: none;
}

@keyframes logoShine {
    0%, 100% {
        background-position: 100% 0;
    }
    50% {
        background-position: -100% 0;
    }
}

@keyframes logoSweep {
    0% {
        left: -100%;
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        left: 200%;
        opacity: 0;
    }
}

/* 悬停时增强扫光效果 */
.nav-logo:hover .logo-shine {
    animation: logoShineFast 2s ease-in-out infinite;
}

.nav-logo:hover .logo-shine::before {
    animation: logoSweepFast 1.5s ease-in-out infinite;
}

@keyframes logoShineFast {
    0%, 100% {
        background-position: 100% 0;
    }
    50% {
        background-position: -100% 0;
    }
}

@keyframes logoSweepFast {
    0% {
        left: -100%;
        opacity: 0;
    }
    30% {
        opacity: 1;
    }
    100% {
        left: 200%;
        opacity: 0;
    }
}

/* =====================================================
   页脚品牌Logo扫光效果 - 符合主题色
   ===================================================== */
.brand-shine {
    position: relative;
    display: inline-block;
    background: linear-gradient(
        90deg,
        var(--accent-color) 0%,
        #FFFFFF 30%,
        var(--accent-color) 60%,
        #FFFFFF 100%
    );
    background-size: 200% 100%;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-position: 100% 0;
    animation: brandShine 3s ease-in-out infinite;
    font-weight: 700;
    letter-spacing: 2px;
}

.brand-shine::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 40%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.8),
        rgba(255, 255, 255, 0.4),
        transparent
    );
    transform: skewX(-25deg);
    animation: brandSweep 2.5s ease-in-out infinite;
    pointer-events: none;
}

@keyframes brandShine {
    0% {
        background-position: 100% 0;
        filter: brightness(1);
    }
    50% {
        background-position: -100% 0;
        filter: brightness(1.3);
    }
    100% {
        background-position: 100% 0;
        filter: brightness(1);
    }
}

@keyframes brandSweep {
    0% {
        left: -100%;
        opacity: 0;
    }
    20% {
        opacity: 1;
    }
    60% {
        opacity: 1;
    }
    100% {
        left: 200%;
        opacity: 0;
    }
}

/* 悬停时增强页脚Logo扫光 */
.footer-logo:hover .brand-shine {
    animation: brandShineFast 1.5s ease-in-out infinite;
}

.footer-logo:hover .brand-shine::before {
    animation: brandSweepFast 1s ease-in-out infinite;
}

@keyframes brandShineFast {
    0% {
        background-position: 100% 0;
    }
    100% {
        background-position: -100% 0;
    }
}

@keyframes brandSweepFast {
    0% {
        left: -100%;
        opacity: 0;
    }
    30% {
        opacity: 1;
    }
    70% {
        opacity: 1;
    }
    100% {
        left: 250%;
        opacity: 0;
    }
}

/* 多层扫光效果 - 增强版 */
.logo-shine-multilayer {
    position: relative;
    background: linear-gradient(
        90deg,
        var(--accent-color) 0%,
        #FFFFFF 50%,
        var(--accent-color) 100%
    );
    background-size: 200% 100%;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-position: 100% 0;
    animation: multilayerShine 3s linear infinite;
}

.logo-shine-multilayer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 30%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.8),
        transparent
    );
    transform: skewX(-25deg);
    animation: multilayerSweep 2s ease-in-out infinite;
}

@keyframes multilayerShine {
    0% {
        background-position: 100% 0;
    }
    100% {
        background-position: -100% 0;
    }
}

@keyframes multilayerSweep {
    0% {
        left: -100%;
        opacity: 0;
    }
    20% {
        opacity: 1;
    }
    80% {
        opacity: 1;
    }
    100% {
        left: 300%;
        opacity: 0;
    }
}

/* 脉冲扫光效果 - 柔和版 */
.pulse-shine {
    position: relative;
    display: inline-block;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(212, 175, 55, 0.6) 50%,
        transparent 100%
    );
    background-size: 150% 100%;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-position: 100% 0;
    animation: pulseShine 4s ease-in-out infinite;
}

.pulse-shine::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 40%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transform: skewX(-20deg);
    animation: pulseSweep 4s ease-in-out infinite;
    animation-delay: 0.5s;
}

@keyframes pulseShine {
    0%, 100% {
        background-position: 100% 0;
        filter: brightness(1);
    }
    50% {
        background-position: -50% 0;
        filter: brightness(1.3);
    }
}

@keyframes pulseSweep {
    0% {
        left: -100%;
        opacity: 0;
    }
    30% {
        opacity: 0.6;
    }
    70% {
        opacity: 0.6;
    }
    100% {
        left: 200%;
        opacity: 0;
    }
}

/* 滚动时触发的扫光效果类 */
.shine-trigger {
    position: relative;
    overflow: hidden;
}

.shine-trigger::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transform: skewX(-25deg);
    animation: triggerSweep 1.5s ease-out forwards;
}

.shine-trigger.active::after {
    animation: triggerSweep 1s ease-out forwards;
}

@keyframes triggerSweep {
    0% {
        left: -100%;
        opacity: 1;
    }
    100% {
        left: 200%;
        opacity: 0;
    }
}

/* 响应式扫光效果 */
@media screen and (max-width: 768px) {
    .logo-shine {
        animation: logoShineMobile 5s ease-in-out infinite;
    }

    .logo-shine::before {
        animation: logoSweepMobile 4s ease-in-out infinite;
    }
}

@keyframes logoShineMobile {
    0%, 100% {
        background-position: 100% 0;
    }
    50% {
        background-position: -100% 0;
    }
}

@keyframes logoSweepMobile {
    0% {
        left: -100%;
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        left: 200%;
        opacity: 0;
    }
}

/* =====================================================
   打印样式
   ===================================================== */
@media print {
    .header,
    .hero-scroll,
    .btn {
        display: none;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .footer {
        background: #FFFFFF;
        color: #000;
    }
}