/* 实习页面样式优化 */
.internship1_one h3 {
    font-size: 22px;
    color: #2c3e50;
    margin-bottom: 25px;
    font-weight: 700;
    position: relative;
    padding-left: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.internship1_one h3:before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 25px;
    background: linear-gradient(135deg, #4a90e2, #357abd);
    border-radius: 3px;
}

/* Emoji图标样式 */
.internship1_one h3 .emoji-icon {
    font-size: 24px;
    margin-right: 8px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

/* 内容列表样式优化 */
.internship1_con {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.internship1_con p {
    font-size: 15px;
    color: #4a5568;
    margin-bottom: 0;
    padding-left: 25px;
    position: relative;
    line-height: 1.7;
    font-weight: 500;
    transition: all 0.3s ease;
}

.internship1_con p:before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: #4a90e2;
    font-weight: bold;
    font-size: 16px;
    background: linear-gradient(135deg, #4a90e2, #357abd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.internship1_con p:hover {
    color: #2c3e50;
    transform: translateX(3px);
}

/* 左侧导航样式优化 */
.internship1_lf a {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 70px;
    font-size: 16px;
    color: #2c3e50;
    text-align: center;
    border-bottom: 1px solid #e8f2ff;
    transition: all 0.3s ease;
    font-weight: 600;
    position: relative;
    padding: 0 20px;
}

.internship1_lf a.cur {
    color: #fff;
    background: linear-gradient(135deg, #4a90e2, #357abd);
    font-weight: 700;
    transform: scale(1.02);
    z-index: 2;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

.internship1_lf a.cur:before {
    content: "";
    position: absolute;
    right: -1px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(135deg, #4a90e2, #357abd);
}

.internship1_lf a:hover:not(.cur) {
    background: linear-gradient(135deg, #f0f7ff, #e3f2fd);
    color: #4a90e2;
    transform: translateX(3px);
}

/* 卡片容器样式优化 */
.internship1_ul {
    display: flex;
    align-items: stretch;
    background: #fff;
    border-radius: 15px;
    border: 1px solid #e8f2ff;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.12);
    min-height: 320px;
    transition: all 0.3s ease;
    position: relative;
}

.internship1_ul:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(74, 144, 226, 0.2);
    border-color: #4a90e2;
}

.internship1_ul::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4a90e2, #357abd);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.internship1_ul:hover::before {
    opacity: 1;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .internship1_one h3 {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .internship1_con p {
        font-size: 14px;
        padding-left: 20px;
    }
    
    .internship1_ul {
        min-height: 280px;
    }
}

@media (max-width: 768px) {
    .internship1_flex {
        flex-direction: column;
    }
    
    .internship1_lf {
        width: 100%;
        flex-direction: row;
        border-right: none;
        border-bottom: 1px solid #e8f2ff;
    }
    
    .internship1_lf a {
        flex: 1;
        height: 60px;
        font-size: 14px;
    }
    
    .internship1_ul {
        flex-direction: column;
        min-height: auto;
    }
    
    .internship1_one {
        padding: 25px 20px;
    }
    
    .internship1_img {
        width: 100%;
        height: 200px;
        border-radius: 0 0 8px 8px;
    }
    
    .internship1_one h3 {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    .internship1_con p {
        font-size: 13px;
        padding-left: 18px;
    }
}

@media (max-width: 480px) {
    .internship1 {
        padding: 80px 0;
    }
    
    .internship1_lf a {
        font-size: 13px;
        height: 50px;
        padding: 0 10px;
    }
    
    .internship1_one {
        padding: 20px 15px;
    }
    
    .internship1_one h3 {
        font-size: 16px;
        margin-bottom: 12px;
    }
    
    .internship1_con p {
        font-size: 12px;
        padding-left: 15px;
        margin-bottom: 8px;
    }
    
    .internship1_img {
        height: 150px;
    }
}

/* 专业领域实习项目样式 */
.professional-internship-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.professional-internship-card {
    background: white;
    border-radius: 20px;
    padding: 30px 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border-left: 4px solid #4a90e2;
    display: flex;
    flex-direction: column;
    min-height: 280px;
}

.professional-internship-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.03), rgba(53, 122, 189, 0.03));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.professional-internship-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(74, 144, 226, 0.15);
    border-left-color: #357abd;
}

.professional-internship-card:hover::before {
    opacity: 1;
}

.professional-internship-header {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
}

.professional-internship-icon {
    font-size: 32px;
    margin-right: 15px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.professional-internship-card:hover .professional-internship-icon {
    background: linear-gradient(135deg, #4a90e2, #357abd);
    transform: scale(1.1);
}

.professional-internship-header h4 {
    font-size: 20px;
    font-weight: 700;
    color: #2c3e50;
    margin: 0;
    line-height: 1.3;
}

.professional-internship-content {
    flex: 1;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.professional-internship-content p {
    font-size: 15px;
    color: #4a5568;
    margin: 0;
    padding-left: 20px;
    position: relative;
    line-height: 1.6;
    font-weight: 500;
    transition: all 0.3s ease;
}

.professional-internship-content p:before {
    content: "•";
    position: absolute;
    left: 0;
    top: 0;
    color: #4a90e2;
    font-weight: bold;
    font-size: 18px;
}

.professional-internship-content p:hover {
    color: #2c3e50;
    transform: translateX(3px);
}

/* 专业领域实习项目响应式设计 */
@media (max-width: 1200px) {
    .professional-internship-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
        padding: 30px 20px;
    }
    
    .professional-internship-card {
        padding: 25px 20px;
        min-height: 260px;
    }
    
    .professional-internship-icon {
        width: 45px;
        height: 45px;
        font-size: 28px;
    }
    
    .professional-internship-header h4 {
        font-size: 18px;
    }
    
    .professional-internship-content p {
        font-size: 14px;
    }
}

@media (max-width: 768px) {
    .professional-internship-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        padding: 20px 15px;
    }
    
    .professional-internship-card {
        padding: 20px 18px;
        min-height: 240px;
    }
    
    .professional-internship-icon {
        width: 40px;
        height: 40px;
        font-size: 24px;
        margin-right: 12px;
    }
    
    .professional-internship-header h4 {
        font-size: 17px;
    }
    
    .professional-internship-content p {
        font-size: 13px;
        padding-left: 18px;
    }
}

@media (max-width: 480px) {
    .professional-internship-grid {
        gap: 15px;
        padding: 15px 10px;
    }
    
    .professional-internship-card {
        padding: 18px 15px;
        min-height: auto;
    }
    
    .professional-internship-icon {
        width: 35px;
        height: 35px;
        font-size: 20px;
        margin-right: 10px;
    }
    
    .professional-internship-header h4 {
        font-size: 16px;
    }
    
    .professional-internship-content p {
        font-size: 12px;
        padding-left: 15px;
    }
}