/* 全局样式 */
:root {
    --primary-color: #1a1a1a;
    --secondary-color: #ff3366;
    --accent-color: #00c6ff;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --dark-bg: #0a0a0a;
    --white: #ffffff;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --gradient: linear-gradient(135deg, #ff3366 0%, #ff6b6b 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a1a 0%, #333 100%);
    --gradient-light: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --font-primary: 'Montserrat', sans-serif;
}

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
    background-color: var(--white);
    opacity: 1;
    transition: opacity 0.5s ease;
}

body.loaded {
    opacity: 1;
}

.section-title {
    text-align: center;
    font-size: 3.5rem;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient);
}

/* 导航栏样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.header.scroll-down {
    transform: translateY(-100%);
}

.header.scroll-up {
    transform: translateY(0);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -1px;
}

.logo span {
    color: var(--secondary-color);
}

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

.nav-links a {
    color: var(--primary-color);
    text-decoration: none;
    margin-left: 2.5rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    font-size: 1.1rem;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s ease;
}

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

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* 英雄区域样式 */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
    background: var(--gradient-light);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 600px;
    z-index: 2;
}

.hero-content h2 {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    line-height: 1.2;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease 0.2s forwards;
    color: var(--primary-color);
}

.cta-button {
    padding: 1.2rem 2.5rem;
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
    background: var(--gradient);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease 0.4s forwards;
    box-shadow: 0 10px 20px rgba(255, 51, 102, 0.3);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.cta-button:hover::before {
    transform: translateX(0);
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(255, 51, 102, 0.4);
}

.hero-video-placeholder {
    flex: 1;
    max-width: 50%;
    height: 100%;
    position: relative;
}

.video-container {
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.5s ease;
}

.video-container:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.2) 0%, rgba(0, 198, 255, 0.2) 100%);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--primary-color);
    opacity: 0.7;
    transition: var(--transition);
    cursor: pointer;
}

.scroll-indicator:hover {
    opacity: 1;
}

.scroll-indicator span {
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.scroll-indicator i {
    font-size: 1.2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* 服务区域样式 */
.services-section {
    padding: 10rem 2rem;
    background: white;
    position: relative;
}

.services-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 198, 255, 0.05) 0%, rgba(255, 51, 102, 0.05) 100%);
    z-index: 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.service-card {
    padding: 3rem 2rem;
    text-align: center;
    background: white;
    border-radius: 15px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    transform: translateY(0);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

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

.service-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 51, 102, 0.1);
    border-radius: 50%;
    transition: var(--transition);
    position: relative;
}

.service-icon::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 50%;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.service-card:hover .service-icon::before {
    opacity: 0.2;
}

.service-card:hover .service-icon {
    transform: rotateY(180deg);
}

.service-card:hover .service-icon i {
    color: var(--secondary-color);
    transform: rotateY(180deg);
}

.service-card i {
    font-size: 2.8rem;
    color: var(--secondary-color);
    transition: var(--transition);
}

.service-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-weight: 600;
}

.service-card p {
    color: #666;
    font-size: 1.1rem;
}

/* 作品集样式 */
.portfolio-section {
    padding: 8rem 0;
    background: var(--dark-bg);
    position: relative;
    overflow: hidden;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.portfolio-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    aspect-ratio: 16/9;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
    padding: 2rem;
    text-align: center;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

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

.portfolio-overlay h3 {
    color: white;
    font-size: 1.8rem;
    margin-bottom: 0.8rem;
    transform: translateY(20px);
    transition: transform 0.3s ease 0.1s;
    font-weight: 600;
}

.portfolio-overlay p {
    color: rgba(255, 255, 255, 0.8);
    transform: translateY(20px);
    transition: transform 0.3s ease 0.2s;
    font-size: 1.1rem;
}

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

/* 关于我们样式 */
.about-section {
    padding: 10rem 2rem;
    background: white;
    position: relative;
}

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

.about-content p {
    font-size: 1.2rem;
    margin-bottom: 4rem;
    color: #666;
    line-height: 1.8;
}

.stats {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    position: relative;
}

.stat-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-item:hover::after {
    opacity: 1;
}

.stat-item h3 {
    font-size: 3.5rem;
    color: var(--secondary-color);
    margin-bottom: 0.8rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.stat-item p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 0;
}

/* 联系我们样式 */
.contact-section {
    padding: 10rem 2rem;
    background: var(--gradient-light);
    position: relative;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 198, 255, 0.05) 0%, rgba(255, 51, 102, 0.05) 100%);
    z-index: 0;
}

.contact-container {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
    padding: 2rem;
}

.contact-form {
    background: rgba(255, 255, 255, 0.1);
    padding: 3rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--white);
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form textarea {
    grid-column: 1 / -1;
    min-height: 150px;
    resize: vertical;
}

.contact-form button {
    grid-column: 1 / -1;
    padding: 1rem 2rem;
    background: var(--gradient);
    border: none;
    border-radius: 10px;
    color: var(--white);
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    max-width: 200px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .contact-container {
        padding: 1rem;
    }
    
    .contact-form {
        padding: 2rem;
        gap: 1.5rem;
        max-width: 100%;
    }
    
    .contact-form input,
    .contact-form textarea {
        padding: 0.8rem;
        font-size: 0.9rem;
    }
    
    .contact-form textarea {
        min-height: 120px;
    }
    
    .contact-form button {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
        max-width: 180px;
    }
    
    .contact-info {
        margin-top: 2rem;
    }
    
    .contact-info-item {
        margin-bottom: 1.5rem;
    }
    
    .contact-info-item i {
        font-size: 1.2rem;
        margin-right: 0.8rem;
    }
    
    .contact-info-item p {
        font-size: 0.9rem;
    }
}

/* 页脚样式 */
.footer {
    background: var(--dark-bg);
    color: white;
    padding: 5rem 2rem 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1.8rem;
    position: relative;
    padding-bottom: 0.8rem;
    font-size: 1.8rem;
}

.footer-section h3::after,
.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--gradient);
}

.footer-section span {
    color: var(--secondary-color);
}

.footer-section p {
    margin-bottom: 0.8rem;
    opacity: 0.8;
    font-size: 1.1rem;
}

.social-links {
    display: flex;
    gap: 1.2rem;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    transition: var(--transition);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.social-links a:hover {
    color: var(--secondary-color);
    background: white;
    transform: translateY(-5px);
}

.footer-bottom {
    text-align: center;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: 1rem;
}

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

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-content h2 {
        font-size: 3.5rem;
    }
    
    .services-grid,
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        transition: transform 0.3s ease, opacity 0.3s ease;
        pointer-events: none;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-links a {
        margin: 1rem 0;
    }

    .menu-toggle {
        display: block;
    }

    .menu-toggle.active i::before {
        content: "\f00d";
    }

    .hero-section {
        flex-direction: column;
        text-align: center;
        padding-top: 100px;
    }

    .hero-content {
        margin-bottom: 2rem;
    }

    .hero-content h2 {
        font-size: 2.8rem;
    }

    .hero-video-placeholder {
        max-width: 100%;
        height: 300px;
    }

    .services-grid,
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .service-card {
        padding: 2rem 1.5rem;
    }
    
    .service-card h3 {
        font-size: 1.4rem;
    }
    
    .service-card p {
        font-size: 0.9rem;
    }
    
    .service-icon {
        width: 70px;
        height: 70px;
        margin-bottom: 1.5rem;
    }
    
    .service-icon i {
        font-size: 2rem;
    }

    .stats {
        flex-direction: column;
        gap: 2rem;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .about-content {
        padding: 0 1rem;
        width: 100%;
        max-width: 100%;
    }
    
    .about-content p {
        font-size: 0.9rem;
        line-height: 1.5;
        margin-bottom: 1.5rem;
        padding: 0 0.5rem;
    }
    
    .about-content h2 {
        font-size: 1.8rem;
        margin-bottom: 1.2rem;
        padding: 0 0.5rem;
    }
    
    .about-content .cta-button {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .stats {
        gap: 1.2rem;
        padding: 0 0.5rem;
    }
    
    .stat-item {
        padding: 1rem;
    }
    
    .stat-item h3 {
        font-size: 2rem;
    }
    
    .stat-item p {
        font-size: 0.8rem;
    }
    
    .about-section {
        padding: 4rem 0;
    }
}

/* 动画效果 */
.animate-text {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

.animate-text-delay {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease 0.2s forwards;
}

/* 漂浮动画参数组 */
@keyframes float1 {
    0% { transform: translateY(0px) rotate(-5deg); }
    50% { transform: translateY(-15px) rotate(-3deg); }
    100% { transform: translateY(0px) rotate(-5deg); }
}

@keyframes float2 {
    0% { transform: translateY(0px) rotate(3deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
    100% { transform: translateY(0px) rotate(3deg); }
}

@keyframes float3 {
    0% { transform: translateY(0px) rotate(-2deg); }
    50% { transform: translateY(-10px) rotate(0deg); }
    100% { transform: translateY(0px) rotate(-2deg); }
}

@keyframes float4 {
    0% { transform: translateY(0px) rotate(4deg); }
    50% { transform: translateY(-18px) rotate(6deg); }
    100% { transform: translateY(0px) rotate(4deg); }
}

@keyframes float5 {
    0% { transform: translateY(0px) rotate(3deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
    100% { transform: translateY(0px) rotate(3deg); }
}

@keyframes float6 {
    0% { transform: translateY(0px) rotate(-2deg); }
    50% { transform: translateY(10px) rotate(0deg); }
    100% { transform: translateY(0px) rotate(-2deg); }
}

@keyframes float7 {
    0% { transform: translateY(0px) rotate(4deg); }
    50% { transform: translateY(-18px) rotate(6deg); }
    100% { transform: translateY(0px) rotate(4deg); }
}

@keyframes float8 {
    0% { transform: translateY(0px) rotate(-5deg); }
    50% { transform: translateY(-15px) rotate(-3deg); }
    100% { transform: translateY(0px) rotate(-5deg); }
}

@keyframes float9 {
    0% { transform: translateY(0px) rotate(5deg); }
    50% { transform: translateY(15px) rotate(3deg); }
    100% { transform: translateY(0px) rotate(5deg); }
}

@keyframes float10 {
    0% { transform: translateY(0px) rotate(4deg); }
    50% { transform: translateY(-15px) rotate(6deg); }
    100% { transform: translateY(0px) rotate(4deg); }
}

@keyframes float11 {
    0% { transform: translateY(0px) rotate(-5deg); }
    50% { transform: translateY(-5px) rotate(-3deg); }
    100% { transform: translateY(0px) rotate(-5deg); }
}

@keyframes float12 {
    0% { transform: translateY(0px) rotate(5deg); }
    50% { transform: translateY(-15px) rotate(3deg); }
    100% { transform: translateY(0px) rotate(5deg); }
}

@keyframes float13 {
    0% { transform: translateY(0px) rotate(-3deg); }
    50% { transform: translateY(-12px) rotate(-1deg); }
    100% { transform: translateY(0px) rotate(-3deg); }
}

@keyframes float14 {
    0% { transform: translateY(0px) rotate(4deg); }
    50% { transform: translateY(10px) rotate(2deg); }
    100% { transform: translateY(0px) rotate(4deg); }
}

@keyframes float15 {
    0% { transform: translateY(0px) rotate(-2deg); }
    50% { transform: translateY(-15px) rotate(0deg); }
    100% { transform: translateY(0px) rotate(-2deg); }
}

@keyframes float16 {
    0% { transform: translateY(0px) rotate(3deg); }
    50% { transform: translateY(12px) rotate(1deg); }
    100% { transform: translateY(0px) rotate(3deg); }
}

/* 应用漂浮动画到所有作品项 */
.portfolio-item {
    animation-duration: 6s;
    animation-timing-function: ease-in-out;
    animation-iteration-count: infinite;
}

.portfolio-item:nth-child(16n+1) { animation-name: float1; }
.portfolio-item:nth-child(16n+2) { animation-name: float2; }
.portfolio-item:nth-child(16n+3) { animation-name: float3; }
.portfolio-item:nth-child(16n+4) { animation-name: float4; }
.portfolio-item:nth-child(16n+5) { animation-name: float5; }
.portfolio-item:nth-child(16n+6) { animation-name: float6; }
.portfolio-item:nth-child(16n+7) { animation-name: float7; }
.portfolio-item:nth-child(16n+8) { animation-name: float8; }
.portfolio-item:nth-child(16n+9) { animation-name: float9; }
.portfolio-item:nth-child(16n+10) { animation-name: float10; }
.portfolio-item:nth-child(16n+11) { animation-name: float11; }
.portfolio-item:nth-child(16n+12) { animation-name: float12; }
.portfolio-item:nth-child(16n+13) { animation-name: float13; }
.portfolio-item:nth-child(16n+14) { animation-name: float14; }
.portfolio-item:nth-child(16n+15) { animation-name: float15; }
.portfolio-item:nth-child(16n+16) { animation-name: float16; }

/* 为每个作品项添加初始旋转角度 */
.portfolio-item:nth-child(16n+1) { transform: rotate(-5deg); }
.portfolio-item:nth-child(16n+2) { transform: rotate(3deg); }
.portfolio-item:nth-child(16n+3) { transform: rotate(-2deg); }
.portfolio-item:nth-child(16n+4) { transform: rotate(4deg); }
.portfolio-item:nth-child(16n+5) { transform: rotate(3deg); }
.portfolio-item:nth-child(16n+6) { transform: rotate(-2deg); }
.portfolio-item:nth-child(16n+7) { transform: rotate(4deg); }
.portfolio-item:nth-child(16n+8) { transform: rotate(-5deg); }
.portfolio-item:nth-child(16n+9) { transform: rotate(5deg); }
.portfolio-item:nth-child(16n+10) { transform: rotate(4deg); }
.portfolio-item:nth-child(16n+11) { transform: rotate(-5deg); }
.portfolio-item:nth-child(16n+12) { transform: rotate(5deg); }
.portfolio-item:nth-child(16n+13) { transform: rotate(-3deg); }
.portfolio-item:nth-child(16n+14) { transform: rotate(4deg); }
.portfolio-item:nth-child(16n+15) { transform: rotate(-2deg); }
.portfolio-item:nth-child(16n+16) { transform: rotate(3deg); }

/* 鼠标悬停效果 */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 全屏动效 */
.fullscreen-section {
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transform: scale(1.1);
    transition: transform 0.5s ease;
}

.parallax-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 2rem;
}

.parallax-content h2 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.parallax-content p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

.parallax-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.7) 100%);
}

/* 滚动进度条 */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient);
    z-index: 1001;
    transition: width 0.3s ease;
}

/* 返回顶部按钮 */
.scroll-top-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

.scroll-top-button.show {
    opacity: 1;
    transform: translateY(0);
}

.scroll-top-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

/* 鼠标跟随效果 */
.cursor {
    position: fixed;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #d8d8d8;
    pointer-events: none;
    z-index: 9999;
    animation: cursorFade 0.5s ease forwards;
    opacity: 0.4;
}

@keyframes cursorFade {
    0% {
        opacity: 0.4;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(1.5);
    }
}

/* 页面加载动画 */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.preloader.fade-out {
    opacity: 0;
}

.preloader::after {
    content: '';
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--secondary-color);
    animation: spin 1s ease-in-out infinite;
}

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

/* 全屏滚动效果 */
html {
    scroll-behavior: smooth;
}

/* 3D卡片效果 */
.card-3d {
    transform-style: preserve-3d;
    transition: transform 0.5s ease;
}

.card-3d:hover {
    transform: rotateY(10deg) rotateX(5deg);
}

/* 视差滚动效果 */
.parallax-scroll {
    transform: translateY(0);
    transition: transform 0.1s ease-out;
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: white;
    opacity: 0.7;
    transition: var(--transition);
    cursor: pointer;
}

.scroll-indicator span {
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.scroll-indicator i {
    font-size: 1.2rem;
    animation: bounce 2s infinite;
}

/* 全屏背景视频 */
.fullscreen-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

/* 滚动触发动画 */
.scroll-trigger {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-trigger.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 全屏分割布局 */
.split-layout {
    display: flex;
    height: 100vh;
}

.split-half {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.split-half.left {
    background: var(--gradient-dark);
    color: white;
}

.split-half.right {
    background: var(--gradient-light);
}

.split-content {
    max-width: 500px;
    z-index: 2;
}

.split-content h2 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.split-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* 全屏滚动部分 */
.fullscreen-section {
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* 滚动进度指示器 */
.scroll-progress-indicator {
    position: fixed;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}

.progress-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid var(--secondary-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.progress-dot.active {
    background: var(--secondary-color);
    transform: scale(1.2);
}

/* 全屏滚动部分 */
.fullscreen-section {
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* 滚动进度指示器 */
.scroll-progress-indicator {
    position: fixed;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}

.progress-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid var(--secondary-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.progress-dot.active {
    background: var(--secondary-color);
    transform: scale(1.2);
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        padding: 1rem;
    }
    
    .portfolio-item {
        aspect-ratio: 4/3;
    }
}

/* 视频播放弹窗样式 */
.video-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-modal.active {
    display: flex;
    opacity: 1;
}

.video-modal-content {
    position: relative;
    width: 90%;
    max-width: 1200px;
    height: 90vh;
    margin: auto;
    background: var(--dark-bg);
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-modal-content video {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.close-video {
    position: absolute;
    top: 10px;
    right: 20px;
    color: var(--white);
    font-size: 2rem;
    cursor: pointer;
    z-index: 1001;
    transition: var(--transition);
}

.close-video:hover {
    transform: scale(1.2);
    color: var(--secondary-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .video-modal-content {
        width: 95%;
        height: 95vh;
    }
    
    .close-video {
        top: 5px;
        right: 15px;
        font-size: 1.5rem;
    }
}

/* 合作伙伴部分样式 */
.partners-section {
    padding: 6rem 0;
    background: var(--dark-bg);
    position: relative;
    overflow: hidden;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.partner-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.partner-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
}

.partner-item img {
    max-width: 100%;
    height: auto;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
}

.partner-item:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

@media (max-width: 768px) {
    .partners-section {
        padding: 4rem 0;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        padding: 1rem;
    }
    
    .partner-item {
        padding: 1.5rem;
    }
}

/* 语言选择器样式 */
.language-selector {
    position: relative;
    margin-left: 20px;
}

.current-lang {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #cb2e51;
    cursor: pointer;
    padding: 5px 15px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.current-lang:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.current-lang::after {
    content: '▼';
    font-size: 10px;
    margin-left: 5px;
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    min-width: 120px;
    z-index: 1000;
    margin-top: 5px;
}

.lang-dropdown.show {
    display: block;
}

.lang-dropdown a {
    display: block;
    padding: 8px 15px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.3s;
}

.lang-dropdown a:hover {
    background-color: #f5f5f5;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .language-selector {
        margin: 10px 0;
    }
    
    .current-lang {
        border-color: rgba(255, 255, 255, 0.2);
    }
    
    .lang-dropdown {
        position: static;
        box-shadow: none;
        background: transparent;
    }
    
    .lang-dropdown a {
        color: #fff;
        padding: 10px 0;
    }
    
    .lang-dropdown a:hover {
        background-color: rgba(255,255,255,0.1);
    }
}

/* 查看更多按钮样式 */
.view-more-container {
    text-align: center;
    margin-top: 40px;
}

.view-more-button {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.view-more-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 作品类型标签 */
.portfolio-type {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 12px;
}

/* 图片模态框样式 */
.image-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
}

.image-modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-modal-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
}

.close-image {
    position: absolute;
    top: 10px;
    right: 20px;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    z-index: 1001;
}

.image-gallery {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.gallery-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    padding: 15px 10px;
    cursor: pointer;
    font-size: 20px;
    z-index: 1001;
    transition: background 0.3s;
}

.gallery-nav:hover {
    background: rgba(0, 0, 0, 0.8);
}

.prev-btn {
    left: 10px;
}

.next-btn {
    right: 10px;
}

.gallery-counter {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    background: rgba(0, 0, 0, 0.5);
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 14px;
}

/* 为第13个及以后的作品添加动画效果 */
@keyframes float13 {
    0% {
        transform: translateY(0px) rotate(-3deg);
    }
    50% {
        transform: translateY(-12px) rotate(-1deg);
    }
    100% {
        transform: translateY(0px) rotate(-3deg);
    }
}

@keyframes float14 {
    0% {
        transform: translateY(0px) rotate(4deg);
    }
    50% {
        transform: translateY(10px) rotate(2deg);
    }
    100% {
        transform: translateY(0px) rotate(4deg);
    }
}

@keyframes float15 {
    0% {
        transform: translateY(0px) rotate(-2deg);
    }
    50% {
        transform: translateY(-15px) rotate(0deg);
    }
    100% {
        transform: translateY(0px) rotate(-2deg);
    }
}

.portfolio-item:nth-child(13) {
    animation: float13 7s ease-in-out infinite;
    transform: rotate(-3deg);
}

.portfolio-item:nth-child(14) {
    animation: float14 6s ease-in-out infinite;
    transform: rotate(4deg);
}

.portfolio-item:nth-child(15) {
    animation: float15 8s ease-in-out infinite;
    transform: rotate(-2deg);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .view-more-button {
        padding: 10px 25px;
        font-size: 14px;
    }
} 

@media (max-width: 768px) {
  .container {
    display: block !important;
  }
  .portfolio-grid {
    display: block !important;
  }
  .mobile-moved-title {
    display: block !important;
    width: 100% !important;
    margin-top: 32px !important;
    margin-bottom: 32px !important;
    background: #ffeaea !important;
    border: 2px solid red !important;
    font-size: 1.5em !important;
    text-align: center !important;
  }
}