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

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* 导航栏 */
.navbar {
    background-color: #1a1a1a;
    color: #fff;
    padding: 1rem 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.logo p {
    font-size: 0.8rem;
    color: #ccc;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: #ffd700;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #ffd700;
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #fff;
    margin: 3px 0;
    transition: all 0.3s ease;
}

/* 英雄区域 */
.hero {
    background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="1200" height="600"><rect width="100%" height="100%" fill="%231a1a1a"/><text x="50%" y="50%" font-family="Arial" font-size="48" fill="%23333" text-anchor="middle" dy=".3em">YUANCHI PICTURES</text></svg>');
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
}

.hero h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #ccc;
}

.hero-tags {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-tags span {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 页面标题 */
.page-header {
    background-color: #1a1a1a;
    color: #fff;
    padding: 100px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-header p {
    color: #ccc;
    font-size: 1.1rem;
}

/* 章节标题 */
.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.section-title .line {
    width: 80px;
    height: 3px;
    background-color: #ffd700;
    margin: 0 auto;
}

/* 公司简介 */
.company-intro {
    padding: 80px 0;
    background-color: #fff;
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
}

.intro-content p {
    margin-bottom: 1.5rem;
    color: #666;
}

/* 核心业务 */
.core-business {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.business-item {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.business-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.business-item h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.business-item p {
    color: #666;
    line-height: 1.6;
}

/* 团队预览 */
.team-preview {
    padding: 80px 0;
    background-color: #fff;
}

.team-intro {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
    color: #666;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.team-member {
    background-color: #f9f9f9;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.member-info h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.member-info p {
    color: #666;
    font-size: 0.95rem;
}

.btn-more {
    display: inline-block;
    background-color: #1a1a1a;
    color: #fff;
    padding: 1rem 2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    text-align: center;
    margin: 0 auto;
    display: table;
}

.btn-more:hover {
    background-color: #ffd700;
    color: #1a1a1a;
}

/* 页脚 */
.footer {
    background-color: #1a1a1a;
    color: #fff;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-logo h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    color: #ccc;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

.footer-links a:hover {
    color: #ffd700;
}

.footer-contact p {
    color: #ccc;
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #666;
    font-size: 0.9rem;
}

/* 关于我们页面 */
.about-company {
    padding: 80px 0;
    background-color: #fff;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
}

.about-content p {
    margin-bottom: 1.5rem;
}

.team {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.team-section {
    margin-bottom: 4rem;
}

.team-section h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 2rem;
    text-align: center;
    color: #1a1a1a;
}

.team-member-with-avatar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.team-member-detail {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 0;
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-member-detail:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.member-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.member-info h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.member-info > p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #666;
}

.member-works h5 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.member-works ul {
    list-style: none;
    padding-left: 0;
}

.member-works li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
    color: #666;
}

.member-works li::before {
    content: '•';
    color: #ffd700;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 业务范围页面 */
.core-business-system {
    padding: 80px 0;
    background-color: #fff;
}

.system-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
    color: #666;
    font-style: italic;
}

.business-system-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.business-system-item {
    text-align: center;
    position: relative;
}

.item-number {
    font-size: 4rem;
    font-weight: 700;
    color: rgba(255, 215, 0, 0.1);
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 0;
}

.business-system-item h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
    position: relative;
    z-index: 1;
}

.business-system-item > p {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    font-style: italic;
    position: relative;
    z-index: 1;
}

.item-content {
    background-color: #f9f9f9;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.item-content p {
    color: #666;
    line-height: 1.6;
}

.business-process {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.process-step {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: #1a1a1a;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    border: 3px solid #ffd700;
}

.process-step h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.process-step > p {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.step-details {
    list-style: none;
    padding-left: 0;
}

.step-details li {
    margin-bottom: 0.8rem;
    color: #666;
    font-size: 0.95rem;
}

.business-types {
    padding: 80px 0;
    background-color: #fff;
}

.business-types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.business-type-item {
    background-color: #f9f9f9;
    padding: 2.5rem 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 215, 0, 0.2);
}

.business-type-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #ffd700;
}

.business-type-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: #1a1a1a;
}

.business-type-item p {
    color: #666;
    font-size: 1rem;
}

/* 作品展示页面 */
.works {
    padding: 80px 0;
    background-color: #fff;
}

.works-category {
    margin-bottom: 5rem;
}

.works-category h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 2rem;
    text-align: center;
    color: #1a1a1a;
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.work-item {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.work-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.work-thumbnail {
    height: 200px;
    overflow: hidden;
    background-color: #f0f0f0;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #1a1a1a;
    color: #ffd700;
    font-size: 1.5rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.work-info {
    padding: 1.5rem;
}

.work-info h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.work-info p {
    color: #666;
    font-size: 0.95rem;
}

/* 出品与制作项目 */
.production-projects {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-item {
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.project-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-item:hover img {
    transform: scale(1.05);
}

/* 联系我们页面 */
.contact {
    padding: 80px 0;
    background-color: #fff;
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.6;
    color: #666;
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.info-icon {
    font-size: 1.8rem;
    margin-top: 0.3rem;
}

.info-text h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.info-text p {
    color: #666;
    margin-bottom: 0;
}

.contact-form {
    background-color: #f9f9f9;
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    font-family: 'Noto Sans SC', sans-serif;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #ffd700;
    box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.2);
}

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

.btn-submit {
    background-color: #1a1a1a;
    color: #fff;
    padding: 1rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-submit:hover {
    background-color: #ffd700;
    color: #1a1a1a;
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 导航栏 */
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: #1a1a1a;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

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

    .nav-links li {
        margin: 1.5rem 0;
    }

    .hamburger {
        display: flex;
    }

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

    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* 英雄区域 */
    .hero {
        padding-top: 100px;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    /* 页面标题 */
    .page-header {
        padding: 80px 0 40px;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    /* 章节标题 */
    .section-title h2 {
        font-size: 1.8rem;
    }

    /* 业务流程 */
    .process-steps {
        grid-template-columns: 1fr;
    }

    /* 作品展示 */
    .works-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    /* 联系我们 */
    .contact-content {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    /* 团队成员 */
    .team-member-detail {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .member-avatar {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 480px) {
    /* 英雄区域 */
    .hero h2 {
        font-size: 1.8rem;
    }

    /* 业务系统 */
    .business-system-grid {
        grid-template-columns: 1fr;
    }

    /* 作品展示 */
    .works-grid {
        grid-template-columns: 1fr;
    }

    /* 联系我们 */
    .info-item {
        flex-direction: column;
        align-items: flex-start;
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

/* 滚动效果 */
.navbar.scrolled {
    background-color: rgba(26, 26, 26, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}