/* 入会邀请样式 */
.membership-invitation {
    padding: 2rem 0;
    background: linear-gradient(135deg, #f8f9ff 0%, #e8f4fd 100%);
}

.membership-invitation h2 {
    text-align: center;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 2.5rem;
    font-weight: 700;
}

.invitation-intro {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.membership-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.membership-type {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.membership-type:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.type-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.type-icon i {
    font-size: 2rem;
    color: var(--white);
}

.membership-type h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.membership-type > p {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.membership-type ul {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.membership-type ul li {
    padding: 0.5rem 0;
    color: var(--text-color);
    position: relative;
    padding-left: 1.5rem;
}

.membership-type ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.enterprise-benefits {
    margin-top: 2rem;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: #f8f9ff;
    border-radius: 10px;
    border-left: 4px solid var(--secondary-color);
    text-align: center;
}

.benefit-item i {
    font-size: 1.5rem;
    color: var(--secondary-color);
    flex-shrink: 0;
    height: 100%;
    line-height: 50px;
}

.benefit-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.benefit-item p {
    color: var(--text-color);
    margin: 0;
    line-height: 1.5;
    font-size: 0.95rem;
}

.membership-requirements {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 3rem;
}

.membership-requirements h3 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 1.8rem;
    font-weight: 600;
}

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

.requirement-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: #f8f9ff;
    border-radius: 10px;
    transition: background-color 0.3s ease;
}

.requirement-item:hover {
    background: #e8f4fd;
}

.requirement-item i {
    color: var(--secondary-color);
    margin-right: 1rem;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.requirement-item span {
    color: var(--text-color);
    line-height: 1.5;
}

.contact-info {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-info h3 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 1.8rem;
    font-weight: 600;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    padding: 1.5rem;
    background: #f8f9ff;
    border-radius: 10px;
    text-align: center;
    flex-direction: column;
}

.contact-item i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.contact-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contact-item p {
    color: var(--text-color);
    margin-bottom: 1rem;
}

.qr-code {
    width: 120px;
    height: 120px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 合作医院页面样式 */
.hospitals-intro {
    padding: 2rem 0;
    background: var(--white);
}

.intro-content h2 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.intro-content > p {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.intro-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.intro-features .feature {
    text-align: center;
    padding: 2rem;
    background: #f8f9ff;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.intro-features .feature:hover {
    transform: translateY(-5px);
}

.intro-features .feature i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.intro-features .feature h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.hospitals-list {
    padding: 2rem 0;
    background: linear-gradient(135deg, #f8f9ff 0%, #e8f4fd 100%);
}

.hospitals-list h2 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 3rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.hospitals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.hospital-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.hospital-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.hospital-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.hospital-icon i {
    font-size: 2rem;
    color: var(--white);
}

.hospital-card h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.hospital-info {
    margin-bottom: 1.5rem;
}

.hospital-info .info-item {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.hospital-info .info-item i {
    margin-right: 0.5rem;
    color: var(--secondary-color);
}

.hospital-services {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.service-tag {
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.medical-process {
    padding: 2rem 0;
    background: var(--white);
}

.medical-process h2 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 3rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    padding: 2rem 1rem;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.step h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.step p {
    color: var(--text-color);
    line-height: 1.6;
    margin-bottom: 30px;
}

.partnership-application {
    padding: 2rem 0;
    background: linear-gradient(135deg, #f8f9ff 0%, #e8f4fd 100%);
}

.application-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.application-text h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 2.2rem;
    font-weight: 700;
}

.application-text > p {
    color: var(--text-color);
    margin-bottom: 2rem;
    line-height: 1.6;
    font-size: 1.1rem;
}

.partnership-benefits {
    display: grid;
    gap: 1rem;
}

.partnership-benefits .benefit {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.partnership-benefits .benefit i {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-right: 1rem;
}

.application-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.application-form h3 {
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 1.8rem;
    font-weight: 600;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* 知识库模态框样式 */
.knowledge-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 12px;
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    animation: slideIn 0.3s ease;
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-close {
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s ease;
    line-height: 1;
}

.modal-close:hover {
    transform: scale(1.1);
}

.modal-body {
    padding: 2rem;
    max-height: 60vh;
    overflow-y: auto;
    line-height: 1.6;
}

.modal-body h4 {
    color: var(--primary-color);
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.modal-body h4:first-child {
    margin-top: 0;
}

.modal-body p {
    margin-bottom: 1rem;
    color: #333;
}

.modal-body ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.modal-body li {
    margin-bottom: 0.5rem;
    color: #555;
}

.modal-body strong {
    color: var(--secondary-color);
    font-weight: 600;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 移动端优化核心改进 */
@media (max-width: 768px) {
    /* 会员邀请部分 */
    .membership-invitation {
        padding: 30px 15px;
    }
    
    .membership-invitation h2 {
        font-size: 1.8rem;
        text-align: center;
        margin-bottom: 15px;
        word-break: break-word;
    }
    
    .invitation-intro {
        font-size: 1rem;
        margin-bottom: 20px;
        text-align: center;
    }
    
    .membership-types {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .membership-type {
        padding: 20px 15px;
        height: auto;
    }
    
    .type-icon {
        width: 50px;
        height: 50px;
    }
    
    .type-icon i {
        font-size: 1.3rem;
    }
    
    .membership-type h3 {
        font-size: 1.3rem;
        margin-bottom: 10px;
    }
    
    .membership-type > p {
        font-size: 0.9rem;
        margin-bottom: 15px;
    }
    
    .membership-type ul {
        padding-left: 15px;
    }
    
    .membership-type ul li {
        font-size: 0.9rem;
        margin-bottom: 8px;
    }
    
    .enterprise-benefits {
        margin-top: 15px;
        gap: 15px;
    }
    
    .benefit-item {
        padding: 12px;
        flex-direction: column;
        text-align: center;
    }
    
    .benefit-item i {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
        margin-bottom: 10px;
        margin-right: 0;
    }
    
    .benefit-item h4 {
        font-size: 1.1rem;
        margin-bottom: 5px;
    }
    
    .benefit-item p {
        font-size: 0.9rem;
    }
    
    .membership-requirements {
        margin-top: 30px;
        padding: 20px 15px;
    }
    
    .membership-requirements h3 {
        font-size: 1.3rem;
        margin-bottom: 15px;
        text-align: center;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .requirement-item {
        padding: 10px;
    }
    
    .requirement-item i {
        font-size: 1rem;
        margin-right: 8px;
    }
    
    .requirement-item span {
        font-size: 0.9rem;
    }
    
    /* 医院页面 */
    .hospitals-intro {
        padding: 30px 15px;
    }
    
    .intro-content h2 {
        font-size: 1.8rem;
        margin-bottom: 15px;
        text-align: center;
    }
    
    .intro-content > p {
        font-size: 1rem;
        margin-bottom: 20px;
        text-align: center;
    }
    
    .intro-features {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .intro-features .feature {
        padding: 15px;
    }
    
    .intro-features .feature i {
        font-size: 1.5rem;
        margin-bottom: 10px;
    }
    
    .intro-features .feature h3 {
        font-size: 1.2rem;
        margin-bottom: 8px;
    }
    
    .hospitals-list {
        padding: 30px 15px;
    }
    
    .hospitals-list h2 {
        font-size: 1.8rem;
        margin-bottom: 20px;
        text-align: center;
    }
    
    .hospitals-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .hospital-card {
        padding: 20px 15px;
    }
    
    .hospital-icon {
        width: 50px;
        height: 50px;
    }
    
    .hospital-icon i {
        font-size: 1.3rem;
    }
    
    .hospital-card h3 {
        font-size: 1.3rem;
        margin-bottom: 10px;
    }
    
    .hospital-info {
        margin-bottom: 15px;
    }
    
    .hospital-info .info-item {
        margin-bottom: 8px;
    }
    
    .hospital-info .info-item i {
        font-size: 0.9rem;
    }
    
    .hospital-services {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .service-tag {
        margin: 0 5px 5px 0;
        font-size: 0.8rem;
        padding: 4px 8px;
    }
    
    .medical-process {
        padding: 30px 15px;
    }
    
    .medical-process h2 {
        font-size: 1.8rem;
        margin-bottom: 20px;
        text-align: center;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .step {
        padding: 15px;
    }
    
    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1.3rem;
        margin-bottom: 10px;
    }
    
    .step h3 {
        font-size: 1.2rem;
        margin-bottom: 8px;
    }
    
    .step p {
        font-size: 0.9rem;
    }
    
    /* 合作申请部分 */
    .partnership-application-apple {
        padding: 30px 15px;
    }
    
    .application-content-apple {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .application-card {
        padding: 20px 15px;
    }
    
    .card-title {
        font-size: 1.5rem;
        margin-bottom: 10px;
    }
    
    .card-subtitle {
        font-size: 1rem;
        margin-bottom: 15px;
    }
    
    .partnership-benefits-apple {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .benefit-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .benefit-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
        margin-bottom: 10px;
        margin-right: 0;
    }
    
    .benefit-text h5 {
        font-size: 1.1rem;
        margin-bottom: 5px;
    }
    
    .benefit-text span {
        font-size: 0.9rem;
    }
    
    .apple-form {
        margin-top: 20px;
    }
    
    .form-group-apple {
        margin-bottom: 15px;
    }
    
    .form-group-apple label {
        font-size: 0.9rem;
        margin-bottom: 5px;
    }
    
    .form-group-apple input,
    .form-group-apple textarea {
        padding: 10px;
        font-size: 0.9rem;
    }
    
    .submit-btn-apple {
        padding: 12px 20px;
        font-size: 1rem;
    }
    
    .submit-btn-apple i {
        margin-right: 8px;
    }
}

/* 极小屏幕额外优化 (小于400px的设备) */
/* 针对小屏幕手机的优化 (400px 以下) */
@media (max-width: 400px) {
    /* 会员邀请部分 */
    .membership-invitation h2 {
        font-size: 1.5rem;
    }
    
    .invitation-intro {
        font-size: 0.9rem;
    }
    
    .membership-type {
        padding: 15px 12px;
    }
    
    .membership-type h3 {
        font-size: 1.2rem;
    }
    
    .type-icon {
        width: 40px;
        height: 40px;
    }
    
    .type-icon i {
        font-size: 1.1rem;
    }
    
    /* 医院页面 */
    .intro-content h2,
    .hospitals-list h2,
    .medical-process h2 {
        font-size: 1.5rem;
    }
    
    .hospital-card {
        padding: 15px 12px;
    }
    
    .hospital-icon {
        width: 40px;
        height: 40px;
    }
    
    .hospital-icon i {
        font-size: 1.1rem;
    }
    
    .hospital-card h3 {
        font-size: 1.2rem;
    }
    
    /* 表单元素 */
    .form-group-apple input,
    .form-group-apple textarea {
        padding: 8px;
        font-size: 0.85rem;
    }
    
    .submit-btn-apple {
        padding: 10px 15px;
        font-size: 0.9rem;
        width: 100%;
    }
    
    /* 步骤元素 */
    .step {
        padding: 12px;
    }
    
    .step-number {
        width: 35px;
        height: 35px;
        font-size: 1.2rem;
    }
    
    .step h3 {
        font-size: 1.1rem;
    }
    
    /* 合作申请部分 */
    .card-title {
        font-size: 1.3rem;
    }
    
    .card-subtitle {
        font-size: 0.9rem;
    }
    
    .benefit-icon {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .benefit-text h5 {
        font-size: 1rem;
    }
    
    .benefit-text span {
        font-size: 0.8rem;
    }
    
    /* 服务标签 */
    .service-tag {
        font-size: 0.75rem;
        padding: 3px 6px;
        margin: 0 4px 4px 0;
    }
    
    /* 布局调整 */
    .membership-types,
    .requirements-grid,
    .enterprise-benefits,
    .partnership-benefits-apple,
    .intro-features,
    .hospitals-grid,
    .process-steps {
        gap: 10px;
    }
    
    /* 内容容器紧凑化 */
    .membership-invitation,
    .membership-requirements,
    .hospitals-intro,
    .hospitals-list,
    .medical-process,
    .partnership-application-apple {
        padding: 20px 10px;
    }
    
    /* 行距调整 */
    .membership-type > p,
    .benefit-item p,
    .requirement-item span,
    .intro-content > p,
    .hospital-info .info-item,
    .step p {
        line-height: 1.4;
    }
    
    /* 触摸区域优化 */
    .requirement-item,
    .hospital-info .info-item,
    .service-tag,
    .social-icons a {
        min-height: 32px;
    }
}

/* 特别针对超小屏幕的优化 (320px以下) */
@media (max-width: 320px) {
    /* 进一步紧凑化 */
    .membership-invitation h2,
    .intro-content h2,
    .hospitals-list h2,
    .medical-process h2 {
        font-size: 1.4rem;
    }
    
    .membership-type h3,
    .hospital-card h3,
    .step h3,
    .benefit-text h5,
    .card-title {
        font-size: 1.1rem;
    }
    
    .invitation-intro,
    .intro-content > p,
    .card-subtitle,
    .membership-type > p,
    .step p,
    .benefit-text span {
        font-size: 0.85rem;
    }
    
    /* 更小的图标 */
    .type-icon,
    .hospital-icon,
    .step-number,
    .benefit-icon {
        width: 32px;
        height: 32px;
    }
    
    .type-icon i,
    .hospital-icon i,
    .benefit-icon i {
        font-size: 1rem;
    }
    
    /* 更紧凑的内边距 */
    .membership-type,
    .hospital-card,
    .application-card,
    .step,
    .benefit-item {
        padding: 10px 8px;
    }
    
    /* 按钮进一步缩小 */
    .submit-btn-apple {
        padding: 8px 12px;
        font-size: 0.85rem;
    }
}