/* Hero Section */
.hero-section {
    background: url('https://static.yapingtech.com/seo/images/bg_join.png') center/cover no-repeat;
    padding: 120px 0;
    color: #333;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-top: -20px;
}

.hero-title {
    font-size: 3.5em;
    margin-bottom: 30px;
    font-weight: bold;
    color: #1e88e5;
}

.hero-subtitle {
    font-size: 1.4em;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
    color: #4B9EF9;
}

.hero-features {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-feature {
    font-size: 1em;
    font-weight: bold;
    color: #fff;
    background-color: rgba(0, 128, 241, 0.45);
    padding: 6px 16px;
    border-radius: 20px;
    backdrop-filter: blur(4px);
}

/* Benefits Section */
.benefits-section {
    padding: 60px 0;
    background: #fff;
    position: relative;
    text-align: center;
}

.section-title {
    color: #333;
    font-weight: bold;
    margin-bottom: 40px;
    position: relative;
    text-align: center;
    font-size: 2em;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.benefit-item {
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
}

.benefit-icon {
    margin-bottom: 20px;
    position: relative;
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
}

.benefit-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.benefit-item h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
    font-weight: bold;
}

.benefit-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

/* Process Section */
.process-section {
    padding: 80px 0;
    background: #fff;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin-bottom: 50px;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.process-item {
    text-align: center;
    padding: 30px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.process-item:hover {
    transform: translateY(-5px);
}

.process-number {
    font-size: 24px;
    font-weight: bold;
    color: #0080F1;
    margin-bottom: 15px;
}

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

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

/* Advantages Section */
.advantages-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fbff 0%, #f0f5ff 100%);
    position: relative;
    overflow: hidden;
}

.advantages-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(30, 136, 229, 0.2), transparent);
}

.advantages-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.advantages-header h2 {
    font-size: 2.4em;
    color: #333;
    margin-bottom: 15px;
    font-weight: bold;
    position: relative;
    display: inline-block;
}

.advantages-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #1e88e5;
    border-radius: 2px;
}

.advantages-header p {
    font-size: 1.2em;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.advantage-item {
    text-align: center;
    padding: 40px 30px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(30, 136, 229, 0.1);
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(30, 136, 229, 0.1);
    border-color: rgba(30, 136, 229, 0.2);
}

.advantage-icon {
    margin-bottom: 25px;
    position: relative;
}

.advantage-icon img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.advantage-item:hover .advantage-icon img {
    transform: scale(1.1);
}

.advantage-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
    font-weight: 600;
}

.advantage-item p {
    color: #666;
    line-height: 1.8;
    font-size: 15px;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(90deg, rgba(0, 128, 241, 0.85) 0%, rgba(30, 136, 229, 0.85) 100%), url('https://static.yapingtech.com/seo/images/bg_join.png') center/cover no-repeat;
    padding: 60px 0;
    text-align: center;
    color: white;
    position: relative;
}

.cta-section h2 {
    font-size: 2.2em;
    margin-bottom: 20px;
    font-weight: bold;
}

.cta-section p {
    font-size: 1.2em;
    margin-bottom: 40px;
}

.cta-button {
    display: inline-block;
    padding: 12px 40px;
    background: white;
    color: #0080F1;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: all 0.3s ease;
}

.cta-button:hover {
    transform: scale(1.02);
    background: #f5f5f5;
}

/* Platform Section */
.platform-section {
    padding: 60px 0;
    background: #fff;
    position: relative;
    text-align: center;
}

.platform-section .section-title {
    color: #333;
    font-size: 2em;
    font-weight: bold;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
}

.platform-section .section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #1e88e5;
    border-radius: 2px;
}

.platform-content {
    background: url('https://static.yapingtech.com/seo/images/three.png') center/cover no-repeat;
    max-width: 1200px;
    height: 400px;
    margin: 0 auto;
}

/* Authorization/Honor Section */
.auth-section {
    padding: 80px 0;
    background: linear-gradient(180deg, #EBF3FF 0%, #FFFFFF 100%);
    position: relative;
}

.auth-section .section-title {
    font-size: 32px;
    color: #333;
    text-align: center;
    margin-bottom: 50px;
    font-weight: bold;
}

.honor-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    gap: 40px;
}

.honor-text-list {
    flex: 0 0 35%;
    display: flex;
    flex-direction: column;
    gap: 25px;
    padding: 100px 0;
}

.honor-text-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 16px;
    color: #333;
    line-height: 1.6;
}

.honor-dot {
    width: 8px;
    height: 8px;
    background: #1e88e5;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.honor-images {
    flex: 0 0 65%;
    position: relative;
}

.honor-image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    padding: 20px;
}

.honor-image-grid img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    background: #fff;
    padding: 12px;
    object-fit: contain;
}

/* 前四张图片 */
.honor-image-grid img:nth-child(1),
.honor-image-grid img:nth-child(2),
.honor-image-grid img:nth-child(3),
.honor-image-grid img:nth-child(4) {
    aspect-ratio: 16/9;
}

/* 等保证书 - 横版 */
.honor-image-grid img:nth-child(5) {
    aspect-ratio: 16/9;
    grid-column: 1 / 3;
}

/* 安全证书 - 竖版 */
.honor-image-grid img:nth-child(6) {
    aspect-ratio: 3/4;
    grid-column: 1 / 2;
    justify-self: center;
    width: 70%;
}

.honor-image-grid img:hover {
    transform: translateY(-5px);
    z-index: 10;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* Responsive styles */
@media (max-width: 1024px) {
    .honor-container {
        flex-direction: column;
        gap: 30px;
    }

    .honor-text-list {
        flex: none;
        width: 100%;
    }

    .honor-image-grid {
        gap: 15px;
        padding: 15px;
    }
}

@media (max-width: 768px) {
    .honor-image-grid {
        grid-template-columns: 1fr;
    }

    .honor-image-grid img:nth-child(5) {
        grid-column: 1 / 2;
    }

    .honor-image-grid img:nth-child(6) {
        width: 60%;
    }

    .auth-section {
        padding: 40px 0;
    }

    .auth-section .section-title {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .honor-text-item {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .honor-container {
        padding: 0 15px;
    }

    .honor-text-list {
        gap: 15px;
    }

    .honor-image-grid {
        padding: 10px;
        gap: 15px;
    }

    .honor-image-grid img:nth-child(6) {
        width: 80%;
    }
}

/* Benefits Section Responsive */
@media (max-width: 1024px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .benefits-section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 1.8em;
        margin-bottom: 30px;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .benefit-item {
        padding: 20px 15px;
    }

    .benefit-icon {
        width: 50px;
        height: 50px;
        margin-bottom: 15px;
    }

    .benefit-item h3 {
        font-size: 16px;
    }

    .benefit-item p {
        font-size: 13px;
    }
}

@media (max-width: 1024px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        padding: 0 15px;
    }

    .advantages-header h2 {
        font-size: 2em;
    }

    .advantages-header p {
        font-size: 1.1em;
    }
}

@media (max-width: 768px) {
    .advantages-section {
        padding: 40px 0;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .advantage-item {
        padding: 30px 20px;
    }

    .advantages-header {
        margin-bottom: 30px;
    }

    .advantages-header h2 {
        font-size: 1.8em;
    }

    .advantage-icon img {
        width: 48px;
        height: 48px;
    }

    .advantage-item h3 {
        font-size: 18px;
        margin-bottom: 8px;
    }

    .advantage-item p {
        font-size: 14px;
    }
}