/* 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: #f8f9fa;
    overflow-x: hidden;
}

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

/* 部分标题 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 15px;
    color: #333;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    border-radius: 2px;
}

.section-header p {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

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

.navbar.scrolled {
    background-color: white;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

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

.logo h1 {
    font-size: 28px;
    font-weight: 800;
    color: #ff6b6b;
    margin: 0;
}

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

.nav-links li {
    margin-left: 40px;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #ff6b6b;
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: #ff6b6b;
}

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

.burger {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 5px;
    transition: all 0.3s ease;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4, #45b7d1);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: white;
    padding: 200px 0 150px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

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

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 60px;
    font-weight: 800;
    margin-bottom: 25px;
    line-height: 1.1;
    animation: fadeInUp 1s ease forwards, textGlow 2s ease-in-out infinite alternate;
    background: linear-gradient(135deg, #ffffff, #ffeb3b, #4ecdc4);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5), 0 0 40px rgba(255, 255, 255, 0.3);
    position: relative;
    display: inline-block;
}

.hero-content h1::before {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #4ecdc4, #ff6b6b, #ffffff);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    z-index: -1;
    opacity: 0.7;
    animation: textShine 3s ease-in-out infinite;
}

@keyframes textGlow {
    0% {
        text-shadow: 0 0 20px rgba(255, 255, 255, 0.5), 0 0 40px rgba(255, 255, 255, 0.3);
    }
    100% {
        text-shadow: 0 0 30px rgba(255, 255, 255, 0.8), 0 0 60px rgba(255, 255, 255, 0.6), 0 0 80px rgba(255, 255, 255, 0.4);
    }
}

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

.hero-content p {
    font-size: 20px;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease 0.2s forwards;
    opacity: 0;
}

.hero-buttons {
    animation: fadeInUp 1s ease 0.4s forwards;
    opacity: 0;
}

.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    margin: 0 10px;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: white;
    color: #ff6b6b;
}

.btn-primary:hover {
    background-color: #f8f9fa;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

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

.btn-secondary:hover {
    background-color: white;
    color: #ff6b6b;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background-color: white;
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background-color: white;
    bottom: -50px;
    left: -50px;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background-color: white;
    top: 50%;
    left: 10%;
    animation-delay: 4s;
}

@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
    100% {
        transform: translateY(0px) rotate(360deg);
    }
}

/* 服务区域 */
.services {
    padding: 120px 0;
    background-color: white;
}

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

.service-card {
    background-color: #f8f9fa;
    padding: 50px 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.4s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 107, 107, 0.1), transparent);
    transition: left 0.5s ease;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
    border-color: #ff6b6b;
}

.service-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    font-size: 40px;
    color: white;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(10deg);
}

.service-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #333;
}

.service-card p {
    color: #666;
    margin-bottom: 30px;
    line-height: 1.8;
}

.service-link {
    display: inline-flex;
    align-items: center;
    color: #ff6b6b;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.service-link i {
    margin-left: 10px;
    transition: transform 0.3s ease;
}

.service-card:hover .service-link i {
    transform: translateX(5px);
}

/* 统计数据 */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, #333, #555);
    color: white;
    text-align: center;
}

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

.stats-item {
    position: relative;
}

.stats-number {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats-label {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 作品展示 */
.portfolio {
    padding: 120px 0;
    background-color: #f8f9fa;
}

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

.filter-btn {
    background-color: white;
    border: none;
    padding: 10px 25px;
    margin: 0 10px 10px 0;
    border-radius: 50px;
    font-weight: 600;
    color: #333;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.filter-btn.active,
.filter-btn:hover {
    background-color: #ff6b6b;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.portfolio-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.2);
}

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

.portfolio-image img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.15);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.8));
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

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

.portfolio-overlay h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 5px;
}

.portfolio-overlay p {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 20px;
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: rgba(255, 107, 107, 0.9);
    border-radius: 50%;
    color: white;
    transition: all 0.3s ease;
}

.portfolio-link:hover {
    background-color: white;
    color: #ff6b6b;
    transform: scale(1.1);
}

/* 关于我们 */
.about {
    padding: 120px 0;
    background-color: white;
}

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

.about-image {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

.about-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.3), rgba(78, 205, 196, 0.3));
    transition: all 0.3s ease;
}

.about-image:hover .about-image-overlay {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.5), rgba(78, 205, 196, 0.5));
}

.about-text .section-header {
    text-align: left;
    margin-bottom: 30px;
}

.about-text .section-header h2::after {
    left: 0;
    transform: none;
}

.about-text p {
    margin-bottom: 25px;
    color: #666;
    line-height: 1.8;
}

.about-text .btn {
    margin: 0;
}

/* 客户评价 */
.testimonials {
    padding: 120px 0;
    background-color: #f8f9fa;
}

.testimonials-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonial-item {
    text-align: center;
    padding: 0 20px;
    transition: all 0.5s ease;
}

.testimonial-content {
    background-color: white;
    padding: 50px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    position: relative;
}

.testimonial-content::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 80px;
    color: #ff6b6b;
    font-family: Georgia, serif;
}

.testimonial-content p {
    font-size: 18px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 30px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.testimonial-author img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #ff6b6b;
}

.author-info h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 5px;
    color: #333;
}

.author-info p {
    font-size: 14px;
    color: #666;
    margin: 0;
    font-style: normal;
}

/* 联系我们 */
.contact {
    padding: 120px 0;
    background-color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    background-color: #f8f9fa;
    padding: 50px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    margin-right: 20px;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 5px;
    color: #333;
}

.contact-details p {
    color: #666;
    margin: 0;
}

.contact-form {
    background-color: #f8f9fa;
    padding: 50px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 18px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    font-family: 'Poppins', sans-serif;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #ff6b6b;
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 180px;
}

.contact-form .btn {
    margin: 0;
    width: 100%;
    text-align: center;
}

/* 页脚 */
.footer {
    background-color: #333;
    color: white;
    padding: 100px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 20px;
    color: #ff6b6b;
}

.footer-logo p {
    color: #ccc;
    margin-bottom: 30px;
}

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

.footer-social a {
    width: 45px;
    height: 45px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: #ff6b6b;
    transform: translateY(-5px) scale(1.1);
}

.footer-links h4,
.footer-services h4,
.footer-newsletter h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 25px;
    color: white;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after,
.footer-services h4::after,
.footer-newsletter h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: #ff6b6b;
}

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

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

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

.footer-links a::before,
.footer-services a::before {
    content: '→';
    position: absolute;
    left: 0;
    transition: transform 0.3s ease;
}

.footer-links a:hover,
.footer-services a:hover {
    color: #ff6b6b;
}

.footer-links a:hover::before,
.footer-services a:hover::before {
    transform: translateX(5px);
}

.footer-newsletter p {
    color: #ccc;
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
    gap: 10px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 50px;
    font-size: 14px;
    outline: none;
}

.newsletter-form button {
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    border: none;
    border-radius: 50px;
    padding: 0 20px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.newsletter-form button:hover {
    transform: scale(1.1);
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-bottom p {
    color: #ccc;
    margin: 0;
}

.footer-bottom-links {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    justify-content: center;
}

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

.footer-bottom-links a:hover {
    color: #ff6b6b;
}

/* 响应式设计 */
@media screen and (max-width: 992px) {
    .hero-content h1 {
        font-size: 48px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 0;
        height: 100vh;
        width: 80%;
        background-color: white;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: right 0.3s ease;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        z-index: 1000;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        margin: 20px 0;
    }

    .burger {
        display: block;
    }

    .burger.active .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .burger.active .line2 {
        opacity: 0;
    }

    .burger.active .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    .hero {
        padding: 150px 0 100px;
    }

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

    .hero-content p {
        font-size: 18px;
    }

    .btn {
        display: block;
        margin: 15px auto;
        width: 80%;
        text-align: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .services,
    .portfolio,
    .about,
    .testimonials,
    .contact,
    .footer {
        padding: 80px 0;
    }
}

@media screen and (max-width: 480px) {
    .hero-content h1 {
        font-size: 28px;
    }

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

    .service-card,
    .contact-info,
    .contact-form {
        padding: 30px;
    }

    .testimonial-content {
        padding: 30px;
    }

    .stats-number {
        font-size: 36px;
    }
}

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

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

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

/* 加载动画 */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 6px solid #f3f3f3;
    border-top: 6px solid #ff6b6b;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #ff5252, #26a69a);
}