/* 全局样式 */
:root {
    --primary-color: #00BCD4;
    --secondary-color: #3F51B5;
    --accent-color: #FF4081;
    --text-color: #333333;
    --light-text: #ffffff;
    --background-color: #ffffff;
    --light-gray: #f5f5f5;
    --medium-gray: #e0e0e0;
    --dark-gray: #757575;
    --shadow: 0 0 4px 2px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--background-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn.primary {
    background-color: var(--primary-color);
    color: var(--light-text);
}

.btn.primary:hover {
    background-color: #00ACC1;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn.secondary {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn.secondary:hover {
    background-color: var(--primary-color);
    color: var(--light-text);
    transform: translateY(-2px);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
    color: var(--dark-gray);
}

/* 头部样式 */
header {
    background-color: var(--background-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

.logo h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    font-weight: 700;
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    font-weight: 500;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a:hover::after {
    width: 100%;
}

/* 英雄区域样式 */
.hero {
    padding: 150px 0 100px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background-color: rgba(0, 188, 212, 0.1);
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background-color: rgba(63, 81, 181, 0.1);
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--dark-gray);
}

.cta-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    max-width: 500px;
}

/* 产品介绍样式 */
.product-intro {
    padding: 100px 0;
    background-color: var(--light-gray);
}

.product-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 0;
}

.product-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.timeline-icon {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--light-text);
    font-size: 1.5rem;
    z-index: 2;
    box-shadow: var(--shadow);
}

.timeline-icon img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.timeline-content {
    width: 45%;
    padding: 30px;
    background-color: var(--background-color);
    border-radius: 10px;
    box-shadow: var(--shadow);
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 55%;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 55%;
}

.timeline-content h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.timeline-content p {
    color: var(--dark-gray);
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 30px;
    width: 20px;
    height: 20px;
    background-color: var(--background-color);
    transform: rotate(45deg);
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: -10px;
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: -10px;
}

.timeline-time {
    background: #4a90e2;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 1rem;
    margin-right: 10px; /* Even closer */
    min-width: 60px;
    text-align: center;
    position: absolute;
    top: 50%;
    left: calc(50% + 80px);
    transform: translate(-50%, -50%);
}

.timeline-item:nth-child(even) .timeline-time {
    left: calc(50% - 80px);
    transform: translate(-50%, -50%);
}

.product-features {
    text-align: center;
    margin-top: 50px;
}

.feature-intro {
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: var(--background-color);
    border-radius: 10px;
    box-shadow: var(--shadow);
    color: var(--secondary-color);
    font-weight: 500;
}

/* 使命与愿景样式 */
.mission-vision {
    padding: 100px 0;
    background-color: var(--background-color);
}

.mission-cards {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 50px;
}

.mission-card {
    flex: 1;
    padding: 30px;
    background-color: var(--light-gray);
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.mission-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.card-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-color: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
    color: var(--light-text);
}

.card-icon img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    font-size: 1.8rem;
}

.mission-card h3 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

/* 主内容容器 - 强制左右排列 */
    .main-content {
      display: flex;
      align-items: center;
      width: 100%;
      gap: 60px;
    }

    /* 金字塔容器样式 */
    .pyramid-section {
      flex: 0 0 35%;
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 20px;
    }

    /* 金字塔图表样式 */
    .pyramid {
      width: 280px;
      height: 450px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      position: relative;
      padding: 20px 0;
    }

    .pyramid::before {
      content: '';
      position: absolute;
      top: 10px;
      left: 50%;
      transform: translateX(-50%);
      width: 1px;
      /* height: calc(100% - 20px); */
      background-color: rgba(226, 232, 240, 0.5);
      z-index: 1;
    }

    .pyramid-level {
      width: 100%;
      text-align: center;
      color: #fff;
      border-radius: 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 15px;
      position: relative;
      z-index: 2;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
      transition: all 0.3s ease;
      cursor: pointer;
    }

    .pyramid-level:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 15px rgba(0, 0, 0, 0.15);
    }

    .level-1 {
      background: linear-gradient(135deg, #2c5282, #4299e1);
      width: 45%;
      height: 22%;
      animation: fadeIn 0.6s ease-out 0.2s forwards;
      opacity: 0;
    }

    .level-2 {
      background: linear-gradient(135deg, #2a9d8f, #38b2ac);
      width: 65%;
      height: 28%;
      animation: fadeIn 0.6s ease-out 0.4s forwards;
      opacity: 0;
    }

    .level-3 {
      background: linear-gradient(135deg, #e9c46a, #f4a261);
      width: 85%;
      height: 40%;
      animation: fadeIn 0.6s ease-out 0.6s forwards;
      opacity: 0;
    }

    .level-number {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 8px;
      opacity: 0.9;
    }

    .level-title {
      font-size: 1.1rem;
      font-weight: 600;
      text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    }

    /* 连接线样式 */
    .connector {
      width: 2px;
      height: 15px;
      background-color: rgba(226, 232, 240, 0.8);
      z-index: 1;
    }

    /* 文本内容容器样式 */
    .text-section {
      flex: 0 0 65%;
      display: flex;
      align-items: center;
      padding: 20px;
    }

    .text-content {
      display: flex;
      flex-direction: column;
      gap: 40px;
      width: 100%;
    }

    .text-item {
      display: flex;
      gap: 20px;
      padding: 25px;
      border-radius: 8px;
      background-color: #f8fafc;
      border-left: 4px solid transparent;
      transition: all 0.3s ease;
      opacity: 0;
      transform: translateY(20px);
    }

    .text-item.item-1 {
      border-left-color: #4299e1;
      animation: slideUp 0.6s ease-out 0.8s forwards;
    }

    .text-item.item-2 {
      border-left-color: #38b2ac;
      animation: slideUp 0.6s ease-out 1s forwards;
    }

    .text-item.item-3 {
      border-left-color: #f4a261;
      animation: slideUp 0.6s ease-out 1.2s forwards;
    }

    .text-item:hover {
      transform: translateY(-3px);
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    }

    .text-icon {
      min-width: 50px;
      height: 50px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-size: 1.2rem;
      flex-shrink: 0;
    }

    .text-icon.icon-1 {
      background-color: #4299e1;
    }

    .text-icon.icon-2 {
      background-color: #38b2ac;
    }

    .text-icon.icon-3 {
      background-color: #f4a261;
    }

    .text-info h3 {
      font-size: 1.3rem;
      color: #102a43;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
    }

    .text-info h3 span {
      font-size: 0.9rem;
      margin-left: 10px;
      color: #64748b;
      font-weight: normal;
    }

    .text-info p {
      color: #64748b;
      line-height: 1.7;
    }

    /* 动画效果 */
    @keyframes fadeIn {
      from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
      }
      to {
        opacity: 1;
        transform: scale(1) translateY(0);
      }
    }

    @keyframes slideUp {
      from {
        opacity: 0;
        transform: translateY(20px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* 响应式设计 - 保持左右排列但调整比例 */
    @media (max-width: 1200px) {
      .main-content {
        gap: 40px;
      }
      
      .pyramid-section {
        flex: 0 0 40%;
      }
      
      .text-section {
        flex: 0 0 60%;
      }
      
      .pyramid {
        width: 240px;
        height: 400px;
      }
    }

    @media (max-width: 992px) {
      .page-container {
        padding: 30px;
      }
      
      .main-content {
        flex-wrap: wrap;
      }
      
      .pyramid-section, .text-section {
        flex: 0 0 100%;
      }
      
      .pyramid {
        margin: 0 auto 30px;
      }
    }

    @media (max-width: 576px) {
      .page-title {
        font-size: 1.8rem;
        margin-bottom: 40px;
      }
      
      .pyramid {
        width: 200px;
        height: 350px;
      }
      
      .text-item {
        padding: 15px;
        flex-direction: column;
        align-items: center;
        text-align: center;
      }
      
      .text-info h3 {
        justify-content: center;
      }
    }

.card-content {
    margin-bottom: 20px;
}

.card-content h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.card-content p {
    color: var(--dark-gray);
}

/* 成果展示样式 */
.achievements {
    padding: 100px 0;
    background-color: var(--light-gray);
}

.achievement-highlights {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-bottom: 50px;
}

.highlight-item {
    text-align: center;
    padding: 30px;
    background-color: var(--background-color);
    border-radius: 10px;
    box-shadow: var(--shadow);
    width: 300px;
}

.highlight-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.highlight-item p {
    font-size: 1.2rem;
    color: var(--dark-gray);
}

/* 案例展示样式 */
.case {
    padding: 100px 0;
    background-color: var(--background-color);
}

.case-highlights {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-bottom: 50px;
}

.case-highlight-item { 
    font-size: 1.5rem;
    color: var(--primary-color);
}

.case-highlight-item img {
    width: 400px;
    object-fit: contain;
}

.case-zuowen-item {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.testimonials {
    margin-bottom: 50px;
}

.testimonial {
    padding: 20px;
    margin-bottom: 20px;
    background-color: var(--background-color);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.testimonial-content {
    position: relative;
    padding-left: 30px;
}

.testimonial-content i {
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.testimonial-content p {
    color: var(--dark-gray);
}

.awards {
    margin-top: 50px;
}

.award-item {
    display: flex;
    align-items: center;
    gap: 30px;
    padding: 30px;
    background-color: var(--background-color);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.award-item img {
    width: 100px;
    height: 100px;
    object-fit: contain;
}

.award-info h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.award-info p {
    color: var(--dark-gray);
    margin-bottom: 10px;
}

/* 联系我们样式 */
.contact {
    padding: 100px 0;
    background-color: var(--light-gray);
}

.contact-info {
    display: flex;
    gap: 50px;
}

.contact-form {
    flex: 1;
    padding: 30px;
    background-color: var(--light-gray);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--medium-gray);
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 188, 212, 0.2);
}

.contact-details {
    flex: 1;
    padding: 30px;
    background-color: var(--light-gray);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-details h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-item i {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--light-text);
    margin-right: 15px;
}

.qr-code-list {
    display: flex;
    gap: 15px;
}

.qr-code {
    margin-top: 10px;
    text-align: center;
}

.qr-code img {
    width: 100px;
    height: 100px;
}

/* 页脚样式 */
footer {
    background-color: #2c3e50;
    color: var(--light-text);
    padding: 70px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 50px;
}

.footer-logo {
    max-width: 250px;
}

.footer-logo img {
    height: 50px;
    margin-bottom: 15px;
}

.footer-logo h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.footer-logo p {
    color: var(--medium-gray);
}

.footer-links {
    display: flex;
    gap: 50px;
}

.link-group h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.link-group h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
}

.link-group ul li {
    margin-bottom: 10px;
}

.link-group ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.icp {
    color: #94a3b8;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .mission-cards {
        flex-direction: column;
    }
    
    .contact-info {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }
    
    nav ul {
        margin-top: 15px;
    }
    
    nav ul li {
        margin-left: 15px;
    }
    
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        margin-bottom: 40px;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .product-timeline::before {
        left: 30px;
    }
    
    .timeline-icon {
        left: 30px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        width: calc(100% - 80px);
        margin-left: 80px;
        margin-right: 0;
    }
    
    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -10px;
        right: auto;
    }
    
    .achievement-highlights {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 2rem;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .award-item {
        flex-direction: column;
        text-align: center;
    }
}

/* QR Code Popup Styles */
.btn.secondary {
    position: relative;
}

.qr-popup {
    position: absolute;
    top: 50%;
    left: 110%;
    transform: translateY(-50%);
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: none;
    z-index: 100;
    text-align: center;
    width: 180px;
}

.qr-popup img {
    width: 150px;
    height: 150px;
    margin-bottom: 10px;
}

.qr-popup p {
    margin: 0;
    font-size: 14px;
    color: #333;
}

.qr-popup::before {
    content: '';
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 8px solid transparent;
    border-right-color: white;
}

/* Show QR code on hover */
.btn.secondary:hover .qr-popup {
    display: block;
}

/* Enhanced Professional Styling */

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #0f172a;
    --accent-color: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --white: #ffffff;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Header & Navigation */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo h1 {
    font-weight: 700;
    color: var(--secondary-color);
}

nav ul li a {
    color: var(--text-primary);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

nav ul li a:hover {
    color: var(--primary-color);
}

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

nav ul li a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 80px 0;
}

.hero-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--secondary-color);
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 600px;
}

.btn {
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.btn.primary {
    background: var(--primary-color);
    color: var(--white);
    border: 2px solid var(--primary-color);
}

.btn.primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn.secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    position: relative;
}

.btn.secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* QR Popup Enhancement */
.qr-popup {
    position: absolute;
    top: 50%;
    left: 110%;
    transform: translateY(-50%);
    background: var(--white);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    display: none;
    z-index: 100;
    text-align: center;
    width: 200px;
    border: 1px solid #e2e8f0;
}

.qr-popup img {
    width: 160px;
    height: 160px;
    margin-bottom: 15px;
    border-radius: 8px;
}

.qr-popup p {
    margin: 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.qr-popup::before {
    content: '';
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 10px solid transparent;
    border-right-color: var(--white);
}

.btn.secondary:hover .qr-popup {
    display: block;
    animation: fadeIn1 0.3s ease;
}

@keyframes fadeIn1 {
    from { opacity: 0; transform: translateY(-50%) scale(0.95); }
    to { opacity: 1; transform: translateY(-50%) scale(1); }
}

/* Section Titles */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin: 10px auto;
    border-radius: 2px;
}

.section-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Product Timeline */
/* .timeline-item {
    background: var(--white);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #f1f5f9;
}

.timeline-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
} */

.timeline-content h3 {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Mission Cards */
.mission-card {
    background: var(--white);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
}

.mission-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-content h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

/* Achievements */
.achievement-highlights {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
}

.highlight-number {
    background: var(--primary-color);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    margin: 0 auto 15px;
}

.highlight-item p {
    text-align: center;
    font-weight: 500;
    color: var(--text-primary);
}

/* Testimonials */
.testimonial {
    background: var(--accent-color);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
}

.testimonial-content p {
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.6;
}

/* Case Studies */
.case-highlights {
    display: flex;
    justify-content: space-around;
    gap: 30px;
    margin-bottom: 40px;
}

.case-highlight-item {
    text-align: center;
    flex: 1;
}

.case-highlight-item img {
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
    width: 100%;
    height: auto;
}

.case-highlight-item img:hover {
    transform: scale(1.03);
}

/* Contact Section */
.contact {
    background: var(--accent-color);
}

.contact-form {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    padding: 12px 15px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Footer */
footer {
    background: var(--secondary-color);
    color: var(--white);
}

.footer-logo h3 {
    color: var(--white);
    font-weight: 700;
}

.footer-links h4 {
    color: var(--white);
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links ul li a {
    color: #cbd5e1;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #94a3b8;
}

/* Typography Improvements */
h1, h2, h3, h4 {
    font-family: 'Segoe UI', system-ui, sans-serif;
    line-height: 1.3;
}

p {
    font-family: 'Segoe UI', system-ui, sans-serif;
    line-height: 1.6;
}

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

/* Refined Professional Background Colors */

/* Global background settings */
body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background-color: #f8fafc; /* Softer, more professional light background */
}

/* Header - keep as is since it's already professional */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%); /* More subtle blue gradient */
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before,
.hero::after {
    /* Keep the existing decorative elements but make them more subtle */
    opacity: 0.15;
}

/* Product Introduction */
.product-intro {
    background-color: #f1f5f9; /* Softer gray background */
    padding: 100px 0;
}

.product-timeline::before {
    background-color: #93c5fd; /* Softer timeline color */
}

.timeline-icon {
    background-color: var(--primary-color); /* Keep as is */
}

.timeline-content {
    background-color: #ffffff; /* Pure white for content cards */
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    border: 1px solid #e2e8f0;
}

.product-features {
    margin-top: 50px;
}

.feature-intro {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    border: 1px solid #e2e8f0;
    color: var(--secondary-color);
    font-weight: 500;
}

/* Mission & Vision */
.mission-vision {
    background-color: #ffffff; /* Clean white background */
    padding: 100px 0;
}

.mission-card {
    background-color: #f8fafc; /* Very light blue-gray background */
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.mission-card:hover {
    background-color: #ffffff; /* White on hover */
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.07), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
}

/* Achievements */
.achievements {
    background-color: #f1f5f9; /* Consistent light gray background */
    padding: 100px 0;
}

.highlight-item {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    border: 1px solid #e2e8f0;
}

.testimonial {
    background: #f1f5f9; /* Match section background */
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.03), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
}

.award-item {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    border: 1px solid #e2e8f0;
}

/* Case Studies */
.case {
    background-color: #ffffff; /* Clean white background */
    padding: 100px 0;
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%); /* Subtle gradient */
    padding: 100px 0;
}

.contact-form,
.contact-details {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    border: 1px solid #e2e8f0;
}

/* Footer */
footer {
    background-color: #0f172a; /* Darker, more professional footer */
    color: #cbd5e1;
    padding: 70px 0 20px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: #94a3b8;
}

/* Form Elements */
.form-group input,
.form-group textarea {
    background-color: #f8fafc; /* Light background for form fields */
    border: 1px solid #cbd5e1;
}

.form-group input:focus,
.form-group textarea:focus {
    background-color: #ffffff; /* White when focused */
}