:root {
    --primary-color: #0a192f;
    --secondary-color: #112240;
    --accent-color: #cda45e;
    --accent-hover: #d4af37;
    --text-color: #ccd6f6;
    --text-muted: #8892b0;
    --white: #ffffff;
    --bg-light: #f8f9fa;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--primary-color);
    background-color: var(--white);
}

h1, h2, h3, h4, .logo-text {
    font-family: 'Noto Serif SC', serif;
    font-weight: 700;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-gold {
    background-color: var(--accent-color);
    color: var(--white);
}

.btn-gold:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 5px 15px rgba(205, 164, 94, 0.4);
}

.btn-outline {
    border: 2px solid var(--white);
    color: var(--white);
}

.btn-outline:hover {
    background-color: var(--white);
    color: var(--primary-color);
}

.btn-block {
    width: 100%;
}

/* 导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    transition: var(--transition);
}

.header.scrolled {
    padding: 10px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

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

.logo-text {
    font-size: 24px;
    color: var(--accent-color);
    letter-spacing: 1px;
}

.nav ul {
    display: flex;
    list-style: none;
}

.nav ul li {
    margin-left: 30px;
}

.nav ul li a {
    color: var(--white);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

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

/* 首屏 */
.hero {
    height: 100vh;
    background: url('../images/hero.png') no-repeat center center/cover;
    display: flex;
    align-items: center;
    position: relative;
    color: var(--white);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(10, 25, 47, 0.8), rgba(10, 25, 47, 0.4));
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 700px;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: var(--text-color);
}

.hero-btns .btn {
    margin-right: 20px;
}

/* 核心优势 */
.features {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.feature-card {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card .icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* 关于我们 */
.about {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 20px 20px 0 var(--accent-color);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
}

.text-center.section-title::after {
    left: 50%;
    transform: translateX(-50%);
}

.about-text p {
    margin-bottom: 20px;
    color: #555;
}

.stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

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

.stat-item .number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
}

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

/* 服务项目 */
.services {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.section-subtitle {
    margin-bottom: 60px;
    color: var(--text-muted);
}

.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
}

.service-card:hover {
    border-bottom-color: var(--accent-color);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.service-icon {
    font-size: 30px;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.service-card h3 {
    margin-bottom: 15px;
}

/* 联系我们 */
.contact {
    padding: 100px 0;
}

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

.contact-list {
    list-style: none;
    margin-top: 40px;
}

.contact-list li {
    display: flex;
    margin-bottom: 30px;
}

.contact-list li .icon {
    font-size: 24px;
    margin-right: 20px;
    color: var(--accent-color);
}

.contact-list li strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.contact-form-wrapper {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input, 
.form-group select, 
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    transition: var(--transition);
}

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

/* 页脚 */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo h3 {
    color: var(--accent-color);
    font-size: 24px;
    margin-bottom: 20px;
}

.footer-logo p {
    color: var(--text-muted);
}

.footer-links h4, .footer-qrcode h4 {
    margin-bottom: 25px;
    font-size: 1.2rem;
}

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

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

.footer-links ul li a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

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

.qrcode-placeholder {
    width: 120px;
    height: 120px;
    background: #1d2d44;
    display: flex;
    align-items: center;
    text-align: center;
    padding: 10px;
    font-size: 0.8rem;
    color: var(--text-muted);
    border: 1px dashed var(--accent-color);
}

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

.footer-bottom a {
    color: var(--text-muted);
    text-decoration: none;
}

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

/* 动画 */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

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

/* 响应式 */
@media (max-width: 992px) {
    .hero h1 { font-size: 2.5rem; }
    .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-content { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav, .header-contact { display: none; }
    .menu-toggle { display: block; }
    .footer-content { grid-template-columns: 1fr; }
}