body {
     padding-top: 58px;
 }

 .container-main {
     max-width: 1180px;
     margin: 0 auto;
     overflow-x: hidden;
 }

 .section {
     padding: 20px;
     margin-bottom: 20px;
 }

 @media screen and (max-width: 768px) {
     .section {
         margin-bottom: 0 !important;
     }
 }

 .project-bg {
     background-color: #f2f2f3;
     min-height: 335px;
     display: flex;
     flex-direction: column;
     align-items: center;
     justify-content: center;
     text-align: center;
     padding: 30px 20px;
 }

 .project-bg .content {
     max-width: 400px;
     margin-bottom: 20px;
 }

 .project-bg h2 {
     font-size: 22px;
     color: #303030;
     margin-bottom: 20px;
     line-height: 1.3;
 }

 .project-bg p {
     font-size: 16px;
     line-height: 30px;
     color: #303030;
 }

 .project-bg img {
     max-width: 100%;
     height: auto;
     border-radius: 8px;
 }

 .challenges {
     background-color: #3f3f3f;
     min-height: 480px;
     display: flex;
     flex-direction: column;
     align-items: center;
     justify-content: center;
     text-align: center;
     padding: 30px 20px;
 }

 .challenges .content {
     max-width: 550px;
     margin-bottom: 20px;
 }

 .challenges h2 {
     font-size: 22px;
     color: #fff;
     margin-bottom: 20px;
 }

 .challenges p {
     font-size: 16px;
     line-height: 35px;
     color: #fff;
 }

 .challenges img {
     max-width: 100%;
     height: auto;
     border-radius: 8px;
 }

 .solutions-header {
     background-color: #3f3f3f;
     padding: 15px 20px;
     margin: 30px 0;
 }

 .solutions-header h2 {
     font-size: 22px;
     color: #ffffff;
     font-weight: bold;
 }

 .solutions-content {
     padding: 30px 20px;
     display: flex;
     flex-direction: column;
     align-items: center;
 }

 .solutions-content .content {
     max-width: 500px;
 }

 .solutions-content h3 {
     font-size: 18px;
     color: #303030;
     margin-bottom: 15px;
 }

 .solutions-content p {
     font-size: 16px;
     line-height: 35px;
     color: #303030;
     margin-bottom: 20px;
 }

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

 .schedule {
     padding: 30px 20px;
 }

 .schedule h3 {
     font-size: 18px;
     color: #303030;
     margin-bottom: 20px;
     text-align: center;
 }

 .schedule-table {
     width: 100%;
     margin: 0 auto;
     border-collapse: collapse;
     overflow: hidden;
 }

 .schedule-table tr:nth-child(even) {
     background-color: #f2f3f4;
 }

 .schedule-table tr:nth-child(odd) {
     background-color: #d6d9dc;
 }

 .schedule-table td {
     padding: 15px 20px;
     font-size: 14px;
 }

 .schedule-table td:first-child {
     font-weight: 500;
 }

 .schedule-table td:last-child {
     text-align: right;
     font-weight: bold;
 }

 .benefits {
     background-color: #3f3f3f;
     min-height: 420px;
     display: flex;
     flex-direction: column;
     align-items: center;
     justify-content: center;
     text-align: center;
     padding: 30px 20px;
 }

 .benefits .content {
     max-width: 600px;
     margin-bottom: 20px;
     text-align: left;
 }

 .benefits h2 {
     font-size: 22px;
     color: #fff;
     margin-bottom: 20px;
 }

 .benefits p {
     font-size: 16px;
     line-height: 35px;
     color: #fff;
 }

 .benefits img {
     max-width: 80%;
     height: auto;
     border-radius: 8px;
 }

 .testimonials {
     padding-bottom: 0 !important;
 }

 .testimonials h2 {
     font-size: 22px;
     color: #303030;
     margin-bottom: 20px;
 }

 .testimonials p {
     font-size: 16px;
     line-height: 30px;
     color: #3f3f3f;
     margin: 0 auto 20px;
     text-align: left;
 }

 .testimonials .author {
     font-size: 14px;
     color: #666;
     margin-bottom: 30px;
 }

 .tags {
     padding: 20px;
 }

 .tags strong {
     color: #303030;
 }

 .tags a {
     color: #0782c1;
     text-decoration: none;
     margin: 0 10px;
 }

 .tags a:hover {
     background-color: #f0f0f0;
 }

 /* 移动端优化 */
 @media (max-width: 768px) {
     .container-main {
         padding: 0 10px;
     }

     .section {
         padding: 15px;
     }

     .project-bg,
     .challenges,
     .benefits {
         min-height: auto;
         padding: 20px 15px;
     }

     .project-bg h2,
     .challenges h2,
     .benefits h2,
     .solutions-header h2 {
         font-size: 20px;
     }

     .project-bg p,
     .challenges p,
     .benefits p,
     .solutions-content p {
         font-size: 14px;
         line-height: 1.6;
         text-align: left;
     }

     .solutions-content h3,
     .schedule h3 {
         font-size: 16px;
         text-align: left;
     }

     .schedule-table {
         font-size: 12px;
     }

     .schedule-table td {
         padding: 10px 15px;
     }

     .testimonials h2 {
         font-size: 20px;
     }

     .testimonials p {
         font-size: 14px;
     }

     .tags a {
         display: inline-block;
         margin: 5px;
         font-size: 12px;
     }
 }

 @media (max-width: 480px) {

     .project-bg h2,
     .challenges h2,
     .benefits h2,
     .solutions-header h2 {
         font-size: 18px;
     }

     .project-bg p,
     .challenges p,
     .benefits p,
     .solutions-content p {
         font-size: 14px;
         text-align: left;
     }

     .schedule-table {
         font-size: 12px;
     }

     .schedule-table td {
         padding: 8px 10px;
     }

     .tags a {
         font-size: 14px;
     }
 }

 /* 平板端优化 */
 @media (min-width: 769px) and (max-width: 1024px) {
     .container-main {
         max-width: 100%;
         padding: 0 20px;
     }

     .project-bg,
     .challenges,
     .benefits {
         flex-direction: row;
         justify-content: space-between;
         align-items: center;
         text-align: left;
     }

     .project-bg .content,
     .challenges .content,
     .benefits .content {
         flex: 1;
         margin-bottom: 0;
         margin-right: 20px;
     }

     .project-bg img,
     .challenges img,
     .benefits img {
         flex: 0 0 40%;
         max-width: 40%;
     }
 }

 /* 桌面端优化 */
 @media (min-width: 1025px) {

     .project-bg,
     .challenges,
     .benefits {
         flex-direction: row;
         justify-content: space-between;
         align-items: center;
         text-align: left;
         padding: 30px 50px;
     }

     .project-bg .content,
     .challenges .content,
     .benefits .content {
         flex: 1;
         margin-bottom: 0;
         margin-right: 30px;
     }

     .project-bg img,
     .challenges img,
     .benefits img {
         max-width: 45%;
     }

     .solutions-content {
         flex-direction: row;
         justify-content: space-between;
         align-items: flex-start;
         text-align: left;
     }

     .solutions-content .content {
         flex: 1;
         margin-bottom: 0;
         margin-right: 30px;
     }

     .solutions-content img {
         flex: 0 0 40%;
         max-width: 40%;
     }
 }

 .hero-section {
     position: relative;
     width: 100%;
     margin-bottom: 2rem;
     overflow: hidden;
 }

 .hero-image {
     width: 100%;
     height: auto;
     display: block;
     object-fit: cover;
 }

 .hero-content {
     position: absolute;
     top: 50%;
     left: 50%;
     color: white;
     z-index: 2;
     width: 100%;
     max-width: 1180px;
     margin: 0 auto;
     transform: translate(-50%, -50%);
     text-align: center;
 }

 .common {
     font-family: 'Poppins', sans-serif;
     line-height: 1.2;
     font-weight: 600;
     font-size: 5rem;
 }

 .hero-title span {
     font-weight: normal;
     font-size: 4rem;
 }

 .hero-title {
     color: #0d478a;
 }

 .hero-subtitle {
     color: #000000;
 }

 /* Responsive design */
 @media screen and (max-width: 1200px) {
     .hero-content {
         max-width: 90%;
     }
 }

 @media screen and (max-width: 768px) {
     .hero-image {
         height: 120px;
         object-fit: cover;
     }

     .hero-content {
         padding: 1.5rem;
     }

     .hero-title {
         font-size: 2rem;
         margin-bottom: 0.25rem;
         line-height: 1.3;
     }

     .hero-title span {
         font-size: 2rem;
         line-height: 1.3;
     }

     .hero-subtitle {
         font-size: 2rem;
         line-height: 1.3;
     }
 }

 @media (prefers-reduced-motion: reduce) {
     * {
         animation-duration: 0.01ms !important;
         animation-iteration-count: 1 !important;
         transition-duration: 0.01ms !important;
     }
 }

 @media (prefers-contrast: high) {

     .hero-title,
     .hero-subtitle {
         text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
     }
 }