/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background-color: #fff;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.15);
}

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

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
}

.logo:hover {
    color: #f8b400;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #f8b400;
}

.mobile-menu {
    display: none;
    cursor: pointer;
}

.mobile-menu span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* 英雄区域 */
.hero {
    padding: 120px 0 80px;
    background-color: #f5f5f5;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f8b400 0%, #f9d423 100%);
    opacity: 0.1;
    z-index: 0;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #333;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: 18px;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #f8b400;
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    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:hover {
    background-color: #e0a000;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(248, 180, 0, 0.3);
}

.primary-btn {
    background-color: #f8b400;
    color: #fff;
}

.secondary-btn {
    background-color: transparent;
    color: #333;
    border: 2px solid #333;
}

.secondary-btn:hover {
    background-color: #333;
    color: #fff;
    border-color: #333;
}

.hero-image {
    flex: 1;
}

.image-container {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.image-container:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.image-container img {
    width: 100%;
    display: block;
    transition: all 0.3s ease;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(248, 180, 0, 0.2), rgba(249, 212, 35, 0.1));
    transition: all 0.3s ease;
}

.image-container:hover .image-overlay {
    background: linear-gradient(135deg, rgba(248, 180, 0, 0.3), rgba(249, 212, 35, 0.2));
}

/* 通用部分样式 */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #333;
}

.section-title p {
    font-size: 16px;
    color: #666;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background-color: #fff;
    position: relative;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-image {
    flex: 1;
}

.image-wrapper {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.image-wrapper:hover {
    transform: translateY(-10px);
}

.image-wrapper img {
    width: 100%;
    display: block;
    transition: all 0.3s ease;
}

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

.image-border {
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border: 2px solid #f8b400;
    border-radius: 10px;
    z-index: -1;
    transition: all 0.3s ease;
}

.image-wrapper:hover .image-border {
    top: 15px;
    left: 15px;
    right: -15px;
    bottom: -15px;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
    position: relative;
    padding-bottom: 15px;
}

.about-text h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: #f8b400;
}

.about-text p {
    margin-bottom: 20px;
    color: #666;
    line-height: 1.6;
}

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

.stat {
    text-align: center;
    flex: 1;
    min-width: 120px;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.stat:hover {
    transform: translateY(-5px);
    background-color: #f8b400;
    color: #fff;
}

.stat:hover h4,
.stat:hover p {
    color: #fff;
}

.stat-icon {
    width: 50px;
    height: 50px;
    background-color: #f8b400;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    transition: all 0.3s ease;
}

.stat:hover .stat-icon {
    background-color: #fff;
    color: #f8b400;
}

.stat h4 {
    font-size: 32px;
    font-weight: 700;
    color: #f8b400;
    margin-bottom: 5px;
    transition: all 0.3s ease;
}

.stat p {
    font-size: 14px;
    color: #666;
    margin: 0;
    transition: all 0.3s ease;
}

/* 服务 */
.services {
    padding: 100px 0;
    background-color: #f9f9f9;
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="%23f8b400" opacity="0.1"/></svg>');
    background-size: 100px 100px;
    z-index: 0;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: #fff;
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #f8b400, #f9d423);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background-color: #f8b400;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.service-icon::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: -10px;
    bottom: -10px;
    background-color: rgba(248, 180, 0, 0.1);
    border-radius: 50%;
    z-index: -1;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background-color: #333;
    transform: scale(1.1);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
    transition: all 0.3s ease;
}

.service-card:hover h3 {
    color: #f8b400;
}

.service-card p {
    color: #666;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.service-card:hover p {
    color: #333;
}

.service-link {
    display: inline-block;
    color: #f8b400;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
}

.service-link span {
    transition: margin-left 0.3s ease;
}

.service-link:hover {
    color: #333;
}

.service-link:hover span {
    margin-left: 5px;
}

/* 作品展示 */
.portfolio {
    padding: 100px 0;
    background-color: #fff;
}

.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    background-color: #f9f9f9;
    border: 1px solid #e0e0e0;
    border-radius: 50px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    background-color: #f8b400;
    color: #fff;
    border-color: #f8b400;
}

.filter-btn.active {
    background-color: #f8b400;
    color: #fff;
    border-color: #f8b400;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.portfolio-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.portfolio-item:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: all 0.3s ease;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.6), transparent);
    color: #fff;
    transition: all 0.3s ease;
    transform: translateY(20px);
    opacity: 0;
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-overlay h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 5px;
    transform: translateY(20px);
    transition: all 0.3s ease 0.1s;
}

.portfolio-overlay p {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 15px;
    transform: translateY(20px);
    transition: all 0.3s ease 0.2s;
}

.portfolio-link {
    display: inline-block;
    padding: 8px 16px;
    background-color: #f8b400;
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    transform: translateY(20px);
    transition: all 0.3s ease 0.3s;
}

.portfolio-item:hover .portfolio-overlay h3,
.portfolio-item:hover .portfolio-overlay p,
.portfolio-item:hover .portfolio-overlay .portfolio-link {
    transform: translateY(0);
}

.portfolio-link:hover {
    background-color: #fff;
    color: #f8b400;
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background-color: #f9f9f9;
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="%23f8b400" opacity="0.1"/></svg>');
    background-size: 100px 100px;
    z-index: 0;
}

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

.contact-content {
    display: flex;
    gap: 60px;
}

.contact-info {
    flex: 1;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: #f8b400;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.contact-item:hover .contact-icon {
    background-color: #333;
    transform: scale(1.1);
}

.contact-text h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 5px;
    color: #333;
    transition: all 0.3s ease;
}

.contact-item:hover .contact-text h4 {
    color: #f8b400;
}

.contact-text p {
    color: #666;
    margin: 0;
    transition: all 0.3s ease;
}

.contact-item:hover .contact-text p {
    color: #333;
}

.contact-form {
    flex: 1;
    background-color: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.contact-form:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    flex: 1;
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    font-size: 14px;
    transition: all 0.3s ease;
    font-family: 'Poppins', sans-serif;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #f8b400;
    box-shadow: 0 0 0 3px rgba(248, 180, 0, 0.1);
    transform: translateY(-2px);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    width: 100%;
    padding: 15px;
    font-size: 16px;
}

@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
    }
}

/* 页脚 */
.footer {
    background-color: #333;
    color: #fff;
    padding: 60px 0 30px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #f8b400, #f9d423);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo .logo {
    color: #fff;
    font-size: 24px;
    margin-bottom: 10px;
    display: block;
    transition: color 0.3s ease;
}

.footer-logo .logo:hover {
    color: #f8b400;
}

.footer-logo p {
    color: #ccc;
    font-size: 14px;
    margin-bottom: 15px;
}

.footer-description p {
    color: #999;
    font-size: 14px;
    line-height: 1.6;
}

.footer-links h4,
.footer-services h4,
.footer-social h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after,
.footer-services h4::after,
.footer-social h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: #f8b400;
}

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

.footer-links ul li,
.footer-services ul li {
    margin-bottom: 10px;
}

.footer-links ul li a,
.footer-services ul li a {
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 15px;
}

.footer-links ul li a::before,
.footer-services ul li a::before {
    content: '→';
    position: absolute;
    left: 0;
    top: 0;
    color: #f8b400;
    transition: all 0.3s ease;
}

.footer-links ul li a:hover,
.footer-services ul li a:hover {
    color: #f8b400;
    padding-left: 20px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icon {
    width: 45px;
    height: 45px;
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.social-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: rotate(45deg);
    transition: all 0.5s ease;
}

.social-icon:hover::before {
    animation: shine 1s ease;
}

@keyframes shine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

.social-icon:hover {
    background-color: #f8b400;
    transform: translateY(-3px) scale(1.1);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #ccc;
    font-size: 14px;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-bottom-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom-links a:hover {
    color: #f8b400;
}

@media (max-width: 768px) {
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container,
    .about-content,
    .contact-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-content,
    .about-text,
    .contact-info,
    .contact-form {
        order: 1;
    }

    .hero-image,
    .about-image {
        order: 2;
    }

    .hero h1 {
        font-size: 36px;
    }

    .about-stats {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: #fff;
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .mobile-menu {
        display: block;
    }

    .mobile-menu.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .mobile-menu.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero h1 {
        font-size: 28px;
    }

    .section-title h2 {
        font-size: 28px;
    }

    .services-grid,
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 30px;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 100px 0 60px;
    }

    .about,
    .services,
    .portfolio,
    .contact {
        padding: 60px 0;
    }

    .about-stats {
        flex-direction: column;
        gap: 20px;
    }

    .contact-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #f8b400;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #e0a000;
}