/* 深色主题基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background-color: #121212;
}

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

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

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    color: #ffffff;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: #c8a97e;
    margin: 15px auto 0;
}

/* 深色导航栏样式 */
header {
    background: rgba(18, 18, 18, 0.95);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
}

.logo h1 {
    color: #c8a97e;
    font-size: 1.8rem;
    text-shadow: 0 0 10px rgba(200, 169, 126, 0.3);
}

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

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

.nav-menu a {
    text-decoration: none;
    color: #e0e0e0;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

.nav-menu a:hover, .nav-menu a.active {
    color: #c8a97e;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #c8a97e;
    transition: width 0.3s;
}

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

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

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: #e0e0e0;
    margin: 3px 0;
    transition: 0.3s;
}

/* ========== 内页通用样式 ========== */

/* 页面横幅 */
.page-main {
    margin-top: 70px;
}

.page-hero {
    background-size: cover;
    background-position: center;
    color: white;
    padding: 100px 0;
    text-align: center;
    position: relative;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(200, 169, 126, 0.1), transparent);
}

.page-hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    position: relative;
}

.page-hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    position: relative;
}

/* ========== 首页专用样式 ========== */

/* 深色轮播图样式 */
.hero-slider {
    position: relative;
    height: 80vh;
    margin-top: 70px;
    overflow: hidden;
}

.slider-container {
    position: relative;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide.active {
    opacity: 1;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
}

.slide::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(200, 169, 126, 0.1), transparent);
}

.slide-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 20px;
}

.slide-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.slider-nav {
    position: absolute;
    bottom: 30px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    z-index: 2;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    margin: 0 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.slider-dot.active {
    background: #c8a97e;
    box-shadow: 0 0 10px rgba(200, 169, 126, 0.5);
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 2;
    transition: all 0.3s;
    backdrop-filter: blur(5px);
}

.slider-arrow:hover {
    background: rgba(200, 169, 126, 0.8);
    color: #121212;
}

.prev {
    left: 20px;
}

.next {
    right: 20px;
}

/* 深色服务概览样式 */
.services-preview {
    padding: 80px 0;
    background: #1a1a1a;
}

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

.service-item {
    background: #1e1e1e;
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    border: 1px solid #2a2a2a;
    position: relative;
    overflow: hidden;
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #c8a97e, #b8945f);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

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

.service-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 5px rgba(200, 169, 126, 0.3));
}

.service-item h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #ffffff;
}

.service-item p {
    color: #b0b0b0;
    line-height: 1.6;
}

/* 深色精选案例样式 */
.featured-cases {
    padding: 80px 0;
    background: #121212;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.case-card {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    border: 1px solid #2a2a2a;
    background: #1e1e1e;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.case-image {
    height: 250px;
    background-color: #2a2a2a;
    background-size: cover;
    background-position: center;
    position: relative;
}

.case-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.5) 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.case-card:hover .case-image::after {
    opacity: 1;
}

.case-card:nth-child(1) .case-image {
    background-image: url('https://images.unsplash.com/photo-1586023492125-27b2c045efd7?ixlib=rb-1.2.1&auto=format&fit=crop&w=800&q=80');
}

.case-card:nth-child(2) .case-image {
    background-image: url('https://images.unsplash.com/photo-1497366754035-f200968a6e72?ixlib=rb-1.2.1&auto=format&fit=crop&w=800&q=80');
}

.case-card:nth-child(3) .case-image {
    background-image: url('https://images.unsplash.com/photo-1564078516393-cf04bd966897?ixlib=rb-1.2.1&auto=format&fit=crop&w=800&q=80');
}

.case-info {
    padding: 20px;
    background: #1e1e1e;
}

.case-info h3 {
    margin-bottom: 10px;
    color: #ffffff;
}

.case-info p {
    color: #b0b0b0;
}

.view-more-btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #c8a97e, #b8945f);
    color: #121212;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 500;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(200, 169, 126, 0.3);
}

.view-more-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(200, 169, 126, 0.5);
    background: linear-gradient(135deg, #b8945f, #c8a97e);
}

/* 深色公司优势样式 */
.advantages {
    padding: 80px 0;
    background: #1a1a1a;
}

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

.advantage-item {
    background: #1e1e1e;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    border: 1px solid #2a2a2a;
    position: relative;
    overflow: hidden;
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #c8a97e, #b8945f);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.advantage-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.advantage-item:hover::before {
    transform: scaleX(1);
}

.advantage-item h3 {
    color: #c8a97e;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.advantage-item p {
    color: #b0b0b0;
    line-height: 1.6;
}

/* ========== 关于我们页面专用样式 ========== */

.about-content {
    padding: 80px 0;
    background: #121212;
}

.about-intro {
    margin-bottom: 80px;
    text-align: center;
}

.about-intro h2 {
    font-size: 2.2rem;
    margin-bottom: 30px;
    color: #ffffff;
    position: relative;
    display: inline-block;
}

.about-intro h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: #c8a97e;
    margin: 15px auto 0;
}

.about-intro p {
    font-size: 1.1rem;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 20px;
    color: #b0b0b0;
}

/* 设计团队 - 新样式 */
.team-section {
    margin-bottom: 80px;
}

.team-section h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: #ffffff;
    position: relative;
}

.team-section h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: #c8a97e;
    margin: 15px auto 0;
}

.team-container {
    position: relative;
}

.team-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 15px;
}

.team-tab {
    padding: 12px 25px;
    background: #1e1e1e;
    border: 2px solid #2a2a2a;
    border-radius: 30px;
    color: #b0b0b0;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.team-tab:hover {
    border-color: #c8a97e;
    color: #c8a97e;
    background: rgba(200, 169, 126, 0.1);
}

.team-tab.active {
    background: linear-gradient(135deg, #c8a97e, #b8945f);
    border-color: #c8a97e;
    color: #121212;
    box-shadow: 0 5px 15px rgba(200, 169, 126, 0.3);
}

/* 团队成员列表布局 */
.team-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.team-member-list {
    display: flex;
    align-items: center;
    background: #1e1e1e;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    border: 1px solid #2a2a2a;
    position: relative;
    overflow: hidden;
}

.team-member-list::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #c8a97e, #b8945f);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.team-member-list:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.team-member-list:hover::before {
    transform: scaleX(1);
}

.member-photo-list {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 30px;
    flex-shrink: 0;
    border: 3px solid #2a2a2a;
    transition: all 0.3s;
}

.team-member-list:hover .member-photo-list {
    border-color: #c8a97e;
    box-shadow: 0 0 20px rgba(200, 169, 126, 0.3);
}

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

.member-info-list {
    flex: 1;
}

.member-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 15px;
}

.member-header h3 {
    font-size: 1.5rem;
    color: #ffffff;
    margin: 0;
}

.member-position-list {
    background: rgba(200, 169, 126, 0.1);
    color: #c8a97e;
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.9rem;
    border: 1px solid rgba(200, 169, 126, 0.3);
}

.member-desc-list {
    color: #b0b0b0;
    line-height: 1.6;
    margin-bottom: 15px;
    font-size: 1rem;
}

.member-expertise-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.expertise-tag-list {
    background: rgba(200, 169, 126, 0.1);
    color: #c8a97e;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid rgba(200, 169, 126, 0.3);
}

/* 原有团队网格布局 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.team-member {
    background: #1e1e1e;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    text-align: center;
    transition: all 0.3s;
    border: 1px solid #2a2a2a;
}

.team-member:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.member-photo {
    height: 250px;
    background-color: #2a2a2a;
    background-size: cover;
    background-position: center;
    position: relative;
}

.member-photo::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.5) 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.team-member:hover .member-photo::after {
    opacity: 1;
}

.team-member:nth-child(1) .member-photo {
    background-image: url('../images/menber-1.jpg');
}

.team-member:nth-child(2) .member-photo {
    background-image: url('../images/menber-2.jpg');
}

.team-member:nth-child(3) .member-photo {
    background-image: url('../images/menber-3.jpg');
}

.team-member h3 {
    font-size: 1.5rem;
    margin: 20px 0 5px;
    color: #ffffff;
}

.team-member p {
    color: #b0b0b0;
    margin-bottom: 10px;
    padding: 0 20px;
}

.team-member p:last-child {
    margin-bottom: 25px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.company-values {
    margin-bottom: 80px;
}

.company-values h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: #ffffff;
    position: relative;
}

.company-values h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: #c8a97e;
    margin: 15px auto 0;
}

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

.value-item {
    background: #1e1e1e;
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    border: 1px solid #2a2a2a;
    position: relative;
    overflow: hidden;
}

.value-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #c8a97e, #b8945f);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.value-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.value-item:hover::before {
    transform: scaleX(1);
}

.value-item h3 {
    color: #c8a97e;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.value-item p {
    color: #b0b0b0;
    line-height: 1.6;
}

.development-history h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: #ffffff;
    position: relative;
}

.development-history h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: #c8a97e;
    margin: 15px auto 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: linear-gradient(to bottom, #c8a97e, #b8945f);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-year {
    background: linear-gradient(135deg, #c8a97e, #b8945f);
    color: #121212;
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: bold;
    z-index: 1;
    position: relative;
    width: 100px;
    text-align: center;
    margin: 0 30px;
    box-shadow: 0 5px 15px rgba(200, 169, 126, 0.3);
}

.timeline-content {
    background: #1e1e1e;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    width: calc(50% - 100px);
    border: 1px solid #2a2a2a;
    transition: all 0.3s;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.timeline-content h3 {
    color: #ffffff;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.timeline-content p {
    color: #b0b0b0;
    line-height: 1.6;
}

/* ========== 服务项目页面专用样式 ========== */

.services-detail {
    padding: 80px 0;
    background: #121212;
}

.service-category {
    margin-bottom: 80px;
}

.service-category h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: #ffffff;
    position: relative;
}

.service-category h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: #c8a97e;
    margin: 15px auto 0;
}

.service-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-detail-item {
    background: #1e1e1e;
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    border: 1px solid #2a2a2a;
}

.service-detail-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #c8a97e, #b8945f);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.service-detail-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

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

.service-detail-item h3 {
    color: #ffffff;
    font-size: 1.5rem;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 10px;
}

.service-detail-item h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: #c8a97e;
}

.service-detail-item p {
    color: #b0b0b0;
    line-height: 1.6;
    margin-bottom: 20px;
}

.service-detail-item ul {
    list-style: none;
    padding: 0;
}

.service-detail-item li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 8px;
    color: #b0b0b0;
    line-height: 1.5;
}

.service-detail-item li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #c8a97e;
    font-weight: bold;
}

/* 专业服务流程布局 - 一行3个，共2行 */
.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.process-step {
    background: #1e1e1e;
    padding: 40px 25px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    position: relative;
    border: 1px solid #2a2a2a;
}

.process-step:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #c8a97e, #b8945f);
    color: #121212;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 20px;
    position: relative;
    z-index: 1;
    box-shadow: 0 5px 15px rgba(200, 169, 126, 0.3);
}

.process-step h3 {
    color: #ffffff;
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.process-step p {
    color: #b0b0b0;
    line-height: 1.6;
    font-size: 0.95rem;
}

.service-cta {
    background: linear-gradient(rgba(18, 18, 18, 0.9), rgba(18, 18, 18, 0.9)), 
                url('https://images.unsplash.com/photo-1586023492125-27b2c045efd7?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    padding: 80px 0;
    text-align: center;
    color: white;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.service-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(200, 169, 126, 0.1), transparent);
}

.service-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    position: relative;
}

.service-cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    position: relative;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, #c8a97e, #b8945f);
    color: #121212;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(200, 169, 126, 0.3);
    position: relative;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(200, 169, 126, 0.5);
    background: linear-gradient(135deg, #b8945f, #c8a97e);
}

/* ========== 案例展示页面专用样式 ========== */

.cases-filter {
    background: #1a1a1a;
    padding: 40px 0;
    border-bottom: 1px solid #2a2a2a;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-btn {
    padding: 10px 25px;
    background: #1e1e1e;
    border: 2px solid #2a2a2a;
    border-radius: 30px;
    color: #b0b0b0;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn:hover {
    border-color: #c8a97e;
    color: #c8a97e;
    background: rgba(200, 169, 126, 0.1);
}

.filter-btn.active {
    background: linear-gradient(135deg, #c8a97e, #b8945f);
    border-color: #c8a97e;
    color: #121212;
    box-shadow: 0 5px 15px rgba(200, 169, 126, 0.3);
}

.cases-gallery {
    padding: 80px 0;
    background: #121212;
}

/* 减少案例展示容器的内边距 */
.cases-gallery .container {
    max-width: 1400px; /* 增加最大宽度 */
    padding: 0 10px; /* 减少左右内边距 */
}

/* 案例展示网格布局 - 修改为更多列 */
.cases-gallery .cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

/* 在大屏幕上显示更多列 */
@media (min-width: 1200px) {
    .cases-gallery .cases-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1400px) {
    .cases-gallery .cases-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}



.case-item {
    background: #1e1e1e;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    opacity: 1;
    transform: translateY(0);
    border: 1px solid #2a2a2a;
    position: relative;
}

.case-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #c8a97e, #b8945f);
    transform: scaleX(0);
    transition: transform 0.3s;
    z-index: 2;
}

.case-item.hidden {
    display: none;
}

.case-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.case-item:hover::before {
    transform: scaleX(1);
}

.case-image {
    height: 180px;
    background-color: #2a2a2a;
    background-size: cover;
    background-position: center;
    position: relative;
}

.case-info {
    padding: 15px;
    background: #1e1e1e;
}

.case-info h3 {
    color: #ffffff;
    font-size: 1.3rem;
    margin-bottom: 10px;
    line-height: 1.3;
}

.case-type {
    color: #c8a97e;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.case-area {
    color: #b0b0b0;
    margin-bottom: 12px;
    font-size: 0.85rem;
}

.case-desc {
    color: #b0b0b0;
    line-height: 1.5;
    font-size: 0.9rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-statistics {
    background: #1a1a1a;
    padding: 80px 0;
    text-align: center;
    position: relative;
}

.case-statistics::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(200, 169, 126, 0.05), transparent);
}

.case-statistics h2 {
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: #ffffff;
    position: relative;
    display: inline-block;
}

.case-statistics h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: #c8a97e;
    margin: 15px auto 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.stat-item {
    background: #1e1e1e;
    padding: 40px 20px;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    border: 1px solid #2a2a2a;
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #c8a97e, #b8945f);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.stat-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.stat-item:hover::before {
    transform: scaleX(1);
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: #c8a97e;
    margin-bottom: 10px;
    text-shadow: 0 0 10px rgba(200, 169, 126, 0.3);
}

.stat-label {
    color: #b0b0b0;
    font-size: 1.1rem;
    font-weight: 500;
}

/* ========== 联系我们页面专用样式 ========== */

.contact-content {
    padding: 80px 0;
    background: #121212;
}

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

.contact-info h2,
.contact-form h2 {
    font-size: 2.2rem;
    margin-bottom: 40px;
    color: #ffffff;
    position: relative;
}

.contact-info h2::after,
.contact-form h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: #c8a97e;
    margin-top: 15px;
}

.contact-item {
    background: #1e1e1e;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    margin-bottom: 25px;
    transition: all 0.3s;
    border: 1px solid #2a2a2a;
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #c8a97e, #b8945f);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.contact-item:hover::before {
    transform: scaleX(1);
}

.contact-item h3 {
    color: #c8a97e;
    font-size: 1.3rem;
    margin-bottom: 15px;
    position: relative;
    padding-left: 25px;
}

.contact-item h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 15px;
    height: 15px;
    background: #c8a97e;
    border-radius: 2px;
}

.contact-item p {
    color: #b0b0b0;
    line-height: 1.6;
    margin-bottom: 5px;
}

.contact-form {
    background: #1e1e1e;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    border: 1px solid #2a2a2a;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #e0e0e0;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #2a2a2a;
    border-radius: 5px;
    font-size: 1rem;
    transition: all 0.3s;
    background: #2a2a2a;
    color: #e0e0e0;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #c8a97e;
    background: #1e1e1e;
    box-shadow: 0 0 0 2px rgba(200, 169, 126, 0.1);
}

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

.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #c8a97e, #b8945f);
    color: #121212;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(200, 169, 126, 0.3);
}

.submit-btn:hover {
    background: linear-gradient(135deg, #b8945f, #c8a97e);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(200, 169, 126, 0.5);
}

.map-section {
    padding: 80px 0;
    background: #1a1a1a;
    position: relative;
}

.map-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(200, 169, 126, 0.05), transparent);
}

.map-section h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: #ffffff;
    position: relative;
}

.map-section h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: #c8a97e;
    margin: 15px auto 0;
}

.map-placeholder {
    background: #1e1e1e;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    height: 400px;
    position: relative;
    background-image: url('https://images.unsplash.com/photo-1569336415961-5d49d1e3047a?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    border: 1px solid #2a2a2a;
}

.map-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.map-info {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #1e1e1e;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid #2a2a2a;
}

.map-info h3 {
    color: #ffffff;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.map-info p {
    color: #b0b0b0;
    margin-bottom: 10px;
    line-height: 1.6;
}

.faq-section {
    padding: 80px 0;
    background: #121212;
}

.faq-section h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: #ffffff;
    position: relative;
}

.faq-section h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: #c8a97e;
    margin: 15px auto 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: #1e1e1e;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    margin-bottom: 25px;
    transition: all 0.3s;
    border: 1px solid #2a2a2a;
    position: relative;
    overflow: hidden;
}

.faq-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #c8a97e, #b8945f);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.faq-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.faq-item:hover::before {
    transform: scaleX(1);
}

.faq-item h3 {
    color: #ffffff;
    font-size: 1.3rem;
    margin-bottom: 15px;
    position: relative;
    padding-left: 25px;
}

.faq-item h3::before {
    content: '?';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    background: #c8a97e;
    color: #121212;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: bold;
}

.faq-item p {
    color: #b0b0b0;
    line-height: 1.6;
}

/* ========== 通用页脚样式 ========== */

footer {
    background: #0a0a0a;
    color: #b0b0b0;
    padding: 60px 0 20px;
    border-top: 1px solid #2a2a2a;
}

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

.footer-section h3 {
    color: #ffffff;
    margin-bottom: 20px;
    font-size: 1.3rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: #c8a97e;
}

.footer-section p {
    margin-bottom: 10px;
    line-height: 1.6;
}

.footer-section a {
    display: block;
    color: #b0b0b0;
    text-decoration: none;
    margin-bottom: 10px;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #c8a97e;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #2a2a2a;
    color: #888;
}

/* ========== 响应式设计 ========== */

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(18, 18, 18, 0.98);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 50px;
        transition: left 0.3s;
        backdrop-filter: blur(10px);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 0;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    /* 首页响应式 */
    .hero-slider {
        height: 60vh;
    }
    
    .slide-content h2 {
        font-size: 2rem;
    }
    
    .slide-content p {
        font-size: 1rem;
    }
    
    .slider-arrow {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .services-preview,
    .featured-cases,
    .advantages {
        padding: 60px 0;
    }
    
    .service-item,
    .case-card,
    .advantage-item {
        padding: 30px 20px;
    }
    
    .cases-grid,
    .services-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .case-image {
        height: 200px;
    }
    
    /* 内页响应式 */
    .page-hero {
        padding: 80px 0;
    }
    
    .page-hero h1 {
        font-size: 2.2rem;
    }
    
    .page-hero p {
        font-size: 1rem;
    }
    
    .about-content,
    .services-detail,
    .contact-content {
        padding: 60px 0;
    }
    
    .about-intro, .company-values, .team-section, .development-history,
    .service-category {
        margin-bottom: 60px;
    }
    
    .about-intro h2, .company-values h2, .team-section h2, .development-history h2,
    .service-category h2, .contact-info h2, .contact-form h2 {
        font-size: 1.8rem;
    }
    
    .values-grid,
    .service-items {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .service-detail-item {
        padding: 30px 20px;
    }
    
    /* 专业服务流程响应式 - 改为2列 */
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .process-step {
        padding: 30px 20px;
    }
    
    .service-cta {
        padding: 60px 0;
    }
    
    .service-cta h2 {
        font-size: 2rem;
    }
    
    .service-cta p {
        font-size: 1rem;
    }
    
    .cta-button {
        padding: 12px 30px;
        font-size: 1rem;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        flex-direction: row !important;
        margin-left: 60px;
    }
    
    .timeline-year {
        position: absolute;
        left: -90px;
        margin: 0;
        width: 70px;
    }
    
    .timeline-content {
        width: 100%;
    }
    
    /* 设计团队新样式响应式 */
    .team-member-list {
        flex-direction: column;
        text-align: center;
        padding: 25px;
    }
    
    .member-photo-list {
        margin-right: 0;
        margin-bottom: 20px;
    }
    
    .member-header {
        justify-content: center;
    }
    
    /* 案例展示页响应式 */
    .cases-filter {
        padding: 30px 0;
    }
    
    .filter-buttons {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 8px 20px;
        font-size: 0.9rem;
    }
    
    .cases-gallery {
        padding: 60px 0;
    }
    
    .cases-gallery .cases-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }
    
    .case-image {
        height: 180px;
    }
    
    .case-info {
        padding: 15px;
    }
    
    .case-info h3 {
        font-size: 1.2rem;
    }
    
    .case-statistics {
        padding: 60px 0;
    }
    
    .case-statistics h2 {
        font-size: 1.8rem;
        margin-bottom: 40px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .stat-item {
        padding: 30px 15px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    /* 联系我们页响应式 */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-info h2,
    .contact-form h2 {
        font-size: 1.8rem;
        margin-bottom: 30px;
    }
    
    .contact-item {
        padding: 25px;
        margin-bottom: 20px;
    }
    
    .contact-form {
        padding: 30px;
    }
    
    .form-group {
        margin-bottom: 20px;
    }
    
    .map-section {
        padding: 60px 0;
    }
    
    .map-section h2 {
        font-size: 1.8rem;
        margin-bottom: 40px;
    }
    
    .map-placeholder {
        height: 300px;
    }
    
    .map-info {
        padding: 20px;
    }
    
    .faq-section {
        padding: 60px 0;
    }
    
    .faq-section h2 {
        font-size: 1.8rem;
        margin-bottom: 40px;
    }
    
    .faq-item {
        padding: 25px;
        margin-bottom: 20px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 200px;
    }
    
    .team-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .team-tab {
        width: 200px;
    }
    
    .cases-gallery .cases-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    /* 专业服务流程响应式 - 改为1列 */
    .process-steps {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-item,
    .contact-form,
    .faq-item {
        padding: 20px;
    }
    
    .map-info {
        width: 95%;
        padding: 15px;
    }
    
    .map-info h3 {
        font-size: 1.3rem;
    }
}

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

::-webkit-scrollbar-track {
    background: #1e1e1e;
}

::-webkit-scrollbar-thumb {
    background: #c8a97e;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #b8945f;
}

/* 案例筛选动画效果 */
.case-item {
    transition: all 0.5s ease;
}

.case-item.hidden {
    opacity: 0;
    transform: scale(0.9);
    position: absolute;
    pointer-events: none;
}

.cases-grid {
    position: relative;
    transition: all 0.5s ease;
}