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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    overflow-x: hidden;
}

.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
}

.bg-particle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float 20s infinite;
}

.bg-particle:nth-child(1) {
    left: 10%;
    animation-delay: 0s;
    animation-duration: 25s;
}

.bg-particle:nth-child(2) {
    left: 20%;
    animation-delay: 2s;
    animation-duration: 20s;
    width: 15px;
    height: 15px;
}

.bg-particle:nth-child(3) {
    left: 30%;
    animation-delay: 4s;
    animation-duration: 30s;
}

.bg-particle:nth-child(4) {
    left: 40%;
    animation-delay: 1s;
    animation-duration: 22s;
    width: 20px;
    height: 20px;
}

.bg-particle:nth-child(5) {
    left: 50%;
    animation-delay: 3s;
    animation-duration: 28s;
}

.bg-particle:nth-child(6) {
    left: 60%;
    animation-delay: 5s;
    animation-duration: 24s;
    width: 12px;
    height: 12px;
}

.bg-particle:nth-child(7) {
    left: 70%;
    animation-delay: 2.5s;
    animation-duration: 26s;
}

.bg-particle:nth-child(8) {
    left: 80%;
    animation-delay: 1.5s;
    animation-duration: 21s;
    width: 18px;
    height: 18px;
}

.bg-particle:nth-child(9) {
    left: 90%;
    animation-delay: 3.5s;
    animation-duration: 27s;
}

.bg-particle:nth-child(10) {
    left: 95%;
    animation-delay: 0.5s;
    animation-duration: 23s;
    width: 14px;
    height: 14px;
}

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

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

.header {
    background: #1370c7;
    backdrop-filter: blur(10px);
    color: white;
    padding: 12px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    min-height: 56px;
}

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

.logo h1 {
    font-size: 18px;
    font-weight: 600;
    white-space: nowrap;
}

.logo a {
    color: white;
    text-decoration: none;
}

/* LOGO旋转动画 */
.logo img {
    animation: rotateLogo 10s linear infinite;
    transform-origin: center center;
}

@keyframes rotateLogo {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 20px;
    flex-shrink: 0;
}

.nav-list a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    padding: 5px 8px;
    border-radius: 5px;
    font-size: 14px;
    white-space: nowrap;
}

.nav-list a:hover,
.nav-list a.active {
    background: rgba(255, 255, 255, 0.2);
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* Banner轮播样式 */
.banner-carousel {
    position: relative;
    width: 100%;
    height: calc(100vh - 60px);
    min-height: 500px;
    max-height: 900px;
    overflow: hidden;
    margin-top: 55px;
    box-sizing: border-box;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: calc(100vh - 60px);
    min-height: 500px;
    max-height: 900px;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0f68bb 0%, #326cad 100%);
    box-sizing: border-box;
}

.banner-slide.active {
    opacity: 1;
}

.banner-content {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.banner-text {
    flex: 1;
    color: white;
    padding-right: 50px;
}

.banner-text h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.banner-text p {
    font-size: 20px;
    line-height: 1.8;
    opacity: 0.95;
    max-width: 500px;
}

.banner-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.banner-image img {
    max-width: 100%;
    height: auto;
    max-height: 50vh;
    width: auto;
}

/* 全屏轮播图片样式 */
.banner-full-image {
    position: relative;
    left: 50%;
    top: 30%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.banner-full-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* 轮播箭头 */
.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    z-index: 10;
}

.carousel-arrow:hover {
    background: rgba(255, 255, 255, 0.4);
}

.carousel-arrow svg {
    width: 24px;
    height: 24px;
    fill: white;
}

.carousel-arrow.prev {
    left: 30px;
}

.carousel-arrow.next {
    right: 30px;
}

/* 轮播指示器 */
.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.carousel-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s;
}

.carousel-indicator.active {
    background: white;
    width: 30px;
    border-radius: 6px;
}

/* 波浪分隔线 - 独立层，不随轮播切换 */
.wave-separator {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 300px;
    overflow: hidden;
    pointer-events: none;
    z-index: 10;
}

.wave-separator svg {
    position: absolute;
    bottom: 0;
    width: 200%;
    height: 100%;
    animation: wave 15s linear infinite;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.wave-separator svg:nth-child(2) {
    animation-duration: 20s;
    animation-delay: -5s;
    opacity: 0.7;
}

.wave-separator svg:nth-child(3) {
    animation-duration: 25s;
    animation-delay: -10s;
    opacity: 0.5;
}

@keyframes wave {
    0% {
        transform: translateX(0) translateZ(0);
    }
    100% {
        transform: translateX(-50%) translateZ(0);
    }
}

/* 原有hero样式保留用于其他页面 */
.hero {
    background: linear-gradient(135deg, #0f68bb 0%, #326cad 100% ) !important;
    color: white;
    padding: 150px 0 100px;
    text-align: center;
    margin-top: 55px;
    position: relative;
    z-index: 1;
}

.hero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary {
    background: white;
    color: #667eea;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

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

.section-title p {
    color: #667eea;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 2px;
}

.section-subtitle {
    color: #666 !important;
    font-size: 16px !important;
    margin-top: 15px;
}

.services {
    padding: 100px 0;
    background: white;
}

/* 定制服务标题样式 */
.services .section-title h2 {
    font-size: 36px;
    color: #333;
    margin-bottom: 10px;
}

.services .section-title p {
    color: #1abc9c;
    font-size: 14px;
    letter-spacing: 3px;
    position: relative;
    display: inline-block;
}

.services .section-title p::after {
    content: '';
    display: block;
    width: 40px;
    height: 3px;
    background: #1abc9c;
    margin: 15px auto 0;
    border-radius: 2px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px 30px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 第二行居中显示3个 */
.services-grid::after {
    content: '';
    grid-column: 1;
}

.service-card {
    background: white;
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
}

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

.service-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: transparent;
    border: 2px solid #1abc9c;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    transition: all 0.3s;
}

.service-icon img {
    width: 100%;
    height: 100%;
    filter: invert(55%) sepia(85%) saturate(403%) hue-rotate(128deg) brightness(95%) contrast(89%);
}

.service-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
    font-weight: 500;
}

/* 短横线装饰 */
.service-card h3::after {
    content: '';
    display: block;
    width: 30px;
    height: 2px;
    background: #1abc9c;
    margin: 10px auto 0;
    transition: all 0.3s ease;
}

/* 鼠标移入时横线变宽并变色 */
.service-card:hover h3::after {
    width: 120px !important;
    background: #e74c3c !important;
}

.service-card p {
    color: #999;
    line-height: 1.6;
    font-size: 14px;
    margin-top: 15px;
}

/* 响应式布局 */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px 20px;
    }
    
    .services-grid::after {
        display: none;
    }
}

@media (max-width: 640px) {
    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.advantages {
    padding: 80px 0;
    background: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.advantage-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

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

/* 企业优势 - 新布局样式 */
.advantages {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 60px 0;
}

.advantages-layout {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 5vw;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.advantages-left,
.advantages-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5vh;
}

.advantages-left {
    align-items: flex-start;
    text-align: left;
}

.advantages-right {
    align-items: flex-start;
    text-align: left;
}

.advantages-center {
    flex: 0 0 25vw;
    max-width: 380px;
    min-width: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

/* 装饰性菱形边框 */
.advantages-center::before {
    content: '';
    position: absolute;
    width: 30vw;
    height: 30vw;
    max-width: 450px;
    max-height: 450px;
    min-width: 340px;
    min-height: 340px;
    border: 1px solid rgba(100, 181, 246, 0.3);
    transform: rotate(45deg);
    pointer-events: none;
}

.advantages-center::after {
    content: '';
    position: absolute;
    width: 26vw;
    height: 26vw;
    max-width: 400px;
    max-height: 400px;
    min-width: 300px;
    min-height: 300px;
    border: 1px solid rgba(100, 181, 246, 0.2);
    transform: rotate(45deg);
    pointer-events: none;
}

.center-circle {
    width: 22vw;
    height: 22vw;
    max-width: 340px;
    max-height: 340px;
    min-width: 260px;
    min-height: 260px;
    border-radius: 50%;
    background: linear-gradient(135deg, #5ba3e8 0%, #8ec5fc 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 15px 50px rgba(91, 163, 232, 0.35);
    position: relative;
    z-index: 1;
}

.center-circle img {
    width: 18vw;
    height: 18vw;
    max-width: 280px;
    max-height: 280px;
    min-width: 210px;
    min-height: 210px;
    object-fit: contain;
}

.advantage-item {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 1.2vw;
    background: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
}

.advantage-item .advantage-icon {
    width: 3.5vw;
    height: 3.5vw;
    min-width: 45px;
    min-height: 45px;
    max-width: 55px;
    max-height: 55px;
    background: transparent;
    border: 1.5px solid #5ba3e8;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.8vw;
}

.advantage-item .advantage-icon img {
    width: 100%;
    height: 100%;
    filter: none;
    opacity: 0.9;
}

.advantage-text {
    flex: 1;
}

.advantage-text h3 {
    font-size: clamp(15px, 1.3vw, 18px);
    margin-bottom: 0.5vh;
    color: #333;
    font-weight: 500;
}

.advantage-text p {
    color: #999;
    line-height: 1.7;
    font-size: clamp(12px, 1vw, 14px);
}

/* 响应式适配 */
@media (max-width: 1200px) {
    .advantages-layout {
        gap: 4vw;
    }
    
    .advantages-left,
    .advantages-right {
        gap: 4vh;
    }
}

@media (max-width: 992px) {
    .advantages {
        min-height: auto;
        padding: 60px 0;
    }
    
    .advantages-layout {
        flex-direction: column;
        gap: 40px;
    }

    .advantages-center {
        order: -1;
        flex: none;
        width: 280px;
        height: 280px;
    }

    .center-circle {
        width: 260px;
        height: 260px;
        min-width: 260px;
        min-height: 260px;
    }

    .center-circle img {
        width: 210px;
        height: 210px;
        min-width: 210px;
        min-height: 210px;
    }
    
    .advantages-center::before {
        width: 340px;
        height: 340px;
        min-width: 340px;
        min-height: 340px;
    }
    
    .advantages-center::after {
        width: 300px;
        height: 300px;
        min-width: 300px;
        min-height: 300px;
    }

    .advantages-left,
    .advantages-right {
        width: 100%;
        flex: none;
        align-items: center;
        gap: 25px;
    }
    
    .advantages-left .advantage-item,
    .advantages-right .advantage-item {
        max-width: 450px;
    }
    
    .advantage-item .advantage-icon {
        width: 50px;
        height: 50px;
    }
}

/* 服务流程 - 参考页面样式 */
.procedure {
    padding: 10px 0;
    background: #f8fbff;
}

.procedure-wrapper {
    display: flex;
    align-items: center;
    gap: 60px;
}

/* 左侧标题区域 */
.procedure-header {
    flex: 0 0 280px;
    text-align: left;
}

.procedure-header h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 500;
}

.procedure-subtitle {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.procedure-header .procedure-en {
    font-size: 14px;
    color: #666;
    letter-spacing: 2px;
}

.procedure-line {
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, #00a7ff 0%, transparent 100%);
    max-width: 80px;
}

.procedure-header .procedure-desc {
    font-size: 14px;
    color: #999;
    line-height: 1.8;
}

/* 右侧流程内容区域 */
.procedure-content {
    flex: 1;
}

.procedure-tree {
    position: relative;
    width: 100%;
    max-width: 690px;
}

.procedure-tree > img {
    width: 100%;
    height: auto;
    display: block;
}

/* 流程步骤定位 */
.procedure-steps {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.step-item {
    position: absolute;
    width: 220px;
}

.step-item h4 {
    font-size: 16px;
    color: #00a7ff;
    margin-bottom: 8px;
    font-weight: 500;
}

.step-item p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

/* 步骤位置 - 根据树状图调整 */
.step-1 {
    top: 8%;
    left: 8%;
    width: 32%;
}

.step-2 {
    top: 20%;
    right: 8%;
    width: 32%;
}

.step-3 {
    top: 32%;
    left: 8%;
    width: 32%;
}

.step-4 {
    top: 43%;
    right: 8%;
    width: 32%;
}

.step-5 {
    top: 55%;
    left: 8%;
    width: 32%;
}

.step-6 {
    top: 69%;
    right: 8%;
    width: 32%;
}

.step-7 {
    top: 79%;
    left: 8%;
    width: 32%;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .procedure-flow {
        padding: 0 20px 0 60px;
    }
    
    .procedure-flow::before {
        left: 30px;
    }
    
    .flow-item {
        width: 100%;
        padding: 0 !important;
    }
    
    .flow-item.left,
    .flow-item.right {
        margin-left: 0;
        margin-right: 0;
    }
    
    .flow-item[data-step]::before {
        left: -45px !important;
        right: auto !important;
        top: 25px;
        transform: none;
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    
    .flow-content::after {
        left: -42px !important;
        right: auto !important;
        width: 30px !important;
    }
}

/* 交付文档 - 参考图片样式 */
.documents {
    padding: 80px 0;
    background: linear-gradient(135deg, #1370c7 0%, #1370c7 50%,#1370c7  100%);
    position: relative;
}

.documents::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/documents-bg.jpg') center/cover;
    opacity: 0.1;
}

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

/* 标题区域 */
.documents-header {
    text-align: center;
    margin-bottom: 50px;
}

.documents-header h2 {
    font-size: 32px;
    color: #fff;
    margin-bottom: 10px;
    font-weight: 500;
}

.documents-subtitle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.documents-subtitle span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 3px;
}

.documents-line {
    width: 60px;
    height: 1px;
    background: rgba(255, 255, 255, 0.5);
}

/* 文档网格 */
.documents-grid {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
}

.documents-grid-second {
    margin-bottom: 0;
    gap: 70px;
}

.document-card {
    text-align: center;
    transition: all 0.3s;
}

.document-card:hover {
    transform: translateY(-5px);
}

.document-card:hover .document-icon {
    background: rgba(255, 255, 255, 0.25);
}

/* 图标容器 */
.document-icon {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    transition: all 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.document-icon img {
    width: 50px;
    height: 50px;
    filter: brightness(0) invert(1);
}

.document-card h3 {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
}

.products {
    padding: 80px 0;
    background: white;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.product-image {
    height: 200px;
    background: linear-gradient(135deg, #60aceb 0%, #054f8b 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 50px;
}

.product-image img {
    width: 100px;
    height: 100px;
    filter: brightness(0) invert(1);
    opacity: 0.9;
}

.product-info {
    padding: 25px;
}

.product-info h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #333;
}

.product-info p {
    color: #666;
    line-height: 1.8;
}

.footer {
    background: linear-gradient(135deg, #1370c7 0%, #1370c7 50%, #1370c7 100%);
    color: white !important;
    padding: 60px 0 30px;
}

/* 确保所有footer内容都是白色 */
.footer * {
    color: white !important;
}

.footer-section h3 {
    color: white !important;
}

.footer-section p {
    color: white !important;
}

.footer-section ul a {
    color: white !important;
}

.footer-bottom p {
    color: white !important;
}

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

.footer-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #FFFFFF;
}

.footer-section p {
    margin-bottom: 10px;
    line-height: 1.8;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    fill: white !important;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul a:hover {
    color: #667eea;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin-bottom: 5px;
    color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        padding: 20px;
    }

    .nav.active {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        gap: 15px;
    }

    .hero-content h2 {
        font-size: 32px;
    }

    .hero-content p {
        font-size: 16px;
    }

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

    .services-grid,
    .advantages-grid,
    .procedure-timeline,
    .documents-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }

    /* 服务流程响应式 */
    .procedure-wrapper {
        flex-direction: column;
        gap: 40px;
    }

    .procedure-header {
        flex: none;
        text-align: center;
    }

    .procedure-subtitle {
        justify-content: center;
    }

    .procedure-line {
        max-width: 60px;
    }

    .procedure-content {
        width: 100%;
    }

    .procedure-tree {
        max-width: 100%;
    }

    .step-item {
        position: relative;
        width: 100%;
        margin-bottom: 20px;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        transform: none !important;
        text-align: left !important;
        background: white;
        padding: 15px 20px;
        border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    }

    .procedure-steps {
        position: relative;
        padding: 20px;
    }

    .procedure-tree > img {
        display: none;
    }

    /* 交付文档响应式 */
    .documents-grid,
    .documents-grid-second {
        flex-wrap: wrap;
        gap: 30px;
    }

    .document-card {
        width: calc(50% - 15px);
    }

    .document-icon {
        width: 60px;
        height: 60px;
    }

    .document-icon img {
        width: 28px;
        height: 28px;
    }
}

.about-intro {
    padding: 80px 0;
    background: white;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

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

.about-text p {
    font-size: 16px;
    line-height: 2;
    color: #666;
    margin-bottom: 20px;
}

.culture {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.culture-card {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s;
}

.culture-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.culture-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.culture-icon img {
    width: 36px;
    height: 36px;
    filter: brightness(0) invert(1);
}

.culture-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.culture-card p {
    color: #666;
    line-height: 1.8;
}

.team {
    padding: 80px 0;
    background: white;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
}

.team-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    color: white;
    transition: all 0.3s;
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.3);
}

.team-number {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
}

.team-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.team-card p {
    opacity: 0.9;
}

.service-detail {
    padding: 80px 0;
    background: white;
}

.service-item {
    display: flex;
    gap: 40px;
    margin-bottom: 60px;
    padding: 40px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s;
}

.service-item:hover {
    background: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.service-icon-large {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 30px;
}

.service-icon-large img {
    width: 100%;
    height: 100%;
    filter: brightness(0) invert(1);
}

.service-info h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #333;
}

.service-info p {
    color: #666;
    margin-bottom: 15px;
}

.service-info ul {
    list-style: none;
    padding-left: 0;
}

.service-info ul li {
    padding: 8px 0;
    color: #666;
    position: relative;
    padding-left: 25px;
}

.service-info ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.products-showcase {
    padding: 80px 0;
    background: white;
}

.product-features {
    list-style: none;
    padding: 0;
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.product-features li {
    background: #f8f9fa;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    color: #667eea;
}

.contact-section {
    padding: 80px 0;
    background: white;
}

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

.contact-info h3,
.contact-form-wrapper h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #333;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon img {
    width: 24px;
    height: 24px;
    filter: brightness(0) invert(1);
}

.contact-detail h4 {
    font-size: 16px;
    margin-bottom: 5px;
    color: #333;
}

.contact-detail p {
    color: #666;
}

.contact-form {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.form-group textarea {
    resize: vertical;
}

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

.map-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.map-wrapper {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    height: 400px;
}

.map-placeholder {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #999;
}

.map-placeholder i {
    font-size: 80px;
    margin-bottom: 20px;
    color: #667eea;
}

.map-placeholder p {
    font-size: 18px;
    margin-bottom: 5px;
}

@media (max-width: 768px) {
    .banner-carousel {
        height: calc(100vh - 60px);
        min-height: 400px;
    }

    .banner-content {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        padding: 40px 20px;
    }

    .banner-text {
        padding-right: 0;
        margin-bottom: 30px;
    }

    .banner-text h2 {
        font-size: 32px;
    }

    .banner-text p {
        font-size: 16px;
    }

    .banner-image img {
        max-height: 30vh;
    }

    .carousel-arrow {
        width: 40px;
        height: 40px;
    }

    .carousel-arrow.prev {
        left: 10px;
    }

    .carousel-arrow.next {
        right: 10px;
    }

    .service-item {
        flex-direction: column;
        gap: 20px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .service-icon-large {
        width: 80px;
        height: 80px;
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 18px;
    }

    .hero {
        padding: 120px 0 80px;
    }

    .hero-content h2 {
        font-size: 28px;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .contact-form {
        padding: 20px;
    }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #1370c7;
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    z-index: 999;
    display: none;
}

.back-to-top:hover {
    background: #0f68bb;
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}