/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #555; /* 深灰色作为主色调 */
    --secondary-color: #147efb; /* 蓝色作为强调色 */
    --accent-color: #27ae60; /* 绿色作为点缀 */
    --dark-color: #2d2e32; /* 近黑色 */
    --light-color: #f9f9f9; /* 浅灰色背景 */
    --gradient-bg: linear-gradient(135deg, #0078ff, #1e3a8a); /* 蓝色渐变 */
    --transition: all 300ms ease;
}

body {
    font-family: 'Poppins', 'Segoe UI', sans-serif;
    background-color: var(--light-color);
    color: var(--dark-color);
    line-height: 1.7;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航和语言切换 */
.language-switch {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    border-radius: 30px;
    padding: 8px 15px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    display: flex;
    gap: 10px;
}

.lang-btn {
    padding: 5px 10px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
}

.lang-btn.active {
    background: var(--primary-color);
    color: white;
    font-weight: bold;
}

.lang-btn:not(.active):hover {
    background: #f0f0f0;
}

/* 头部样式 */
header {
    background-color: white;
    height: 100vh;
    padding-top: 7rem;
    overflow: hidden;
    text-align: center;
}

header::before, header::after {
    display: none;
}

.profile-container {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.profile-pic {
    width: 300px;
    height: 300px;
    border-radius: 2rem;
    overflow: hidden;
    border: 1px solid #ddd;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
}

.profile-text {
    text-align: left;
    max-width: 500px;
}

.hello-text {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.job-title {
    font-size: 1.5rem;
    color: var(--dark-color);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1.2rem;
    justify-content: flex-start;
    margin-bottom: 2rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    cursor: pointer;
    border: 1px solid var(--secondary-color);
    transition: var(--transition);
    font-weight: 500;
    text-decoration: none;
}

.btn-primary {
    background: var(--secondary-color);
    color: white;
}

.btn-primary:hover {
    background: transparent;
    color: var(--secondary-color);
}

.btn-secondary {
    color: var(--dark-color);
    background: transparent;
    border-color: var(--dark-color);
}

.btn-secondary:hover {
    background: var(--dark-color);
    color: white;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    justify-content: flex-start;
    margin-top: 1rem;
}

.social-link {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.social-link:hover {
    color: var(--accent-color);
}

/* 联系信息样式 */
.contact-info {
    text-align: center;
    margin: 15px 0 30px;
    padding: 10px;
    font-size: 0.9em;
    color: #7f8c8d;
}

.contact-info span {
    margin: 0 10px;
    white-space: nowrap;
}

/* 部分标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h5 {
    color: var(--secondary-color);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.section-title h2 {
    color: var(--dark-color);
    font-size: 2.5rem;
    border-bottom: none;
    padding-bottom: 0;
}

.section-title h2::after {
    content: "";
    display: block;
    width: 80px;
    height: 4px;
    background: var(--accent-color);
    margin: 0.8rem auto 0;
}

/* 关于部分 */
#about {
    padding: 5rem 0;
}

.about-container {
    display: grid;
    grid-template-columns: 35% 50%;
    gap: 15%;
}

.about-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.about-card {
    background: white;
    border: 1px solid transparent;
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

.about-card:hover {
    background: transparent;
    border-color: var(--primary-color);
    cursor: default;
}

.about-icon {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.about-card h5 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.about-card small {
    font-size: 0.8rem;
    color: #7f8c8d;
}

.about-content p {
    margin-bottom: 1.5rem;
    color: #555;
}

/* 经验部分 */
#experience {
    padding: 5rem 0;
    background: #f9f9f9;
}

.experience-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.experience-frontend, .experience-backend {
    background: white;
    padding: 2.4rem 3rem;
    border-radius: 2rem;
    border: 1px solid transparent;
    transition: var(--transition);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

.experience-frontend:hover, .experience-backend:hover {
    background: transparent;
    border-color: var(--primary-color);
    cursor: default;
}

.experience-frontend h3, .experience-backend h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.experience-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    row-gap: 2rem;
}

.experience-details {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.experience-details-icon {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* 项目部分 */
#projects {
    padding: 5rem 0;
    background-color: white;
}

.projects-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.project-item {
    background: var(--light-color);
    border-radius: 2rem;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.project-item:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.project-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.company-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    margin-right: 1rem;
}

.dual-logo {
    display: flex;
    align-items: center;
    margin-right: 1rem;
}

.dual-logo .company-logo {
    margin-right: 0.5rem;
}

.dual-logo .company-logo:last-child {
    margin-left: 0.5rem;
}

.project-item h3 {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin: 0;
}

.project-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.project-details ul {
    list-style-type: none;
}

.project-details li {
    margin-bottom: 1rem;
    position: relative;
    padding-left: 1.5rem;
}

.project-details li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.project-details strong {
    color: var(--dark-color);
    font-weight: 600;
}

/* 经验部分样式 */
article {
    margin-bottom: 25px;
    padding: 15px;
    border-radius: 1rem;
    transition: var(--transition);
    background: white;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid transparent;
}

article:hover {
    background-color: transparent;
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

article h3 {
    color: var(--primary-color);
    font-size: 1.2em;
    margin: 15px 0 5px;
}

article ul {
    margin: 10px 0;
    padding-left: 20px;
    list-style-type: none;
}

article li {
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

article li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.subtitle {
    font-style: italic;
    color: #7f8c8d;
    margin: 5px 0;
}

/* 日期和位置样式 */
.date, .location-date {
    color: #7f8c8d;
    font-size: 0.9em;
    font-family: 'Consolas', monospace;
}

/* 技能使用总结样式 */
.skills-used {
    margin-top: 10px;
    font-family: 'Consolas', monospace;
    font-size: 0.9em;
    color: #7f8c8d;
    padding: 5px 10px;
    background-color: rgba(0, 120, 255, 0.1); /* 使用主色调的透明版本 */
    border-radius: 0.4rem;
}

/* 联系部分 */
#contact {
    padding: 5rem 0;
    background: #f8f9fa;
}

.contact-container {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-options {
    display: flex;
    flex-direction: row;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.contact-option {
    background: white;
    padding: 1.2rem;
    border-radius: 1.2rem;
    text-align: center;
    border: 1px solid #ddd;
    transition: var(--transition);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    flex: 1;
    min-width: 200px;
    max-width: 300px;
}

.contact-option:hover {
    background: transparent;
    border-color: var(--primary-color);
}

.contact-option-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.contact-option a {
    margin-top: 0.7rem;
    display: inline-block;
    font-size: 0.8rem;
    color: var(--primary-color);
}

/* 页脚 */
footer {
    background: var(--dark-color);
    padding: 3rem 0;
    text-align: center;
    font-size: 0.9rem;
    margin-top: 7rem;
    color: white;
}

footer a {
    color: white;
    text-decoration: none;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 2rem;
    display: inline-block;
}

.permalinks {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin: 0 auto 3rem;
}

.footer-socials {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 4rem;
}

.footer-social {
    background: white;
    color: var(--dark-color);
    padding: 0.8rem;
    border-radius: 0.7rem;
    display: flex;
    border: 1px solid transparent;
    transition: var(--transition);
}

.footer-social:hover {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.footer-copyright {
    margin-bottom: 4rem;
    color: white;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .about-container {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .about-cards {
        grid-template-columns: 1fr 1fr;
        margin-bottom: 2rem;
    }

    .experience-container {
        grid-template-columns: 1fr;
    }

    .projects-container {
        grid-template-columns: 1fr 1fr;
        gap: 1.2rem;
    }

    .contact-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    header {
        height: auto;
        padding-top: 4rem;
    }

    .about-cards {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .experience-content {
        grid-template-columns: 1fr;
    }

    .projects-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .permalinks {
        flex-direction: column;
        gap: 1.5rem;
    }

    body {
        padding: 20px;
    }

    main {
        padding: 20px;
    }

    .contact-info span {
        display: block;
        margin: 5px 0;
    }

    .contact-options {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-option {
        width: 100%;
        max-width: 100%;
    }

    .profile-pic {
        width: 250px;
        height: 250px;
    }

    .project-item {
        padding: 1.5rem;
    }
    
    .project-details li {
        padding-left: 1.2rem;
    }
}

/* 添加深蓝色背景的部分 */
#skills {
    background-color: var(--light-color);
    color: var(--dark-color);
    padding: 5rem 0;
    margin-top: 0;
}

#skills .section-title h2 {
    color: var(--primary-color);
}

#skills .section-title h5 {
    color: var(--accent-color);
}

#skills .section-title h2::after {
    background: var(--accent-color);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%; /* 向上移动图片焦点，显示更多头部 */
}

/* 技能部分样式 */
.skills-container {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

.skills-card {
    background: white;
    border-radius: 2rem;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    flex: 1;
    min-width: 300px;
    max-width: 600px;
}

.skills-card h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--dark-color);
    font-size: 1.8rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.skill-category {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.skill-icon {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.skill-category h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.skill-category p {
    font-size: 0.9rem;
    color: #555;
    line-height: 1.6;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .profile-container {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .profile-text {
        text-align: center;
    }
    
    .cta-buttons, .social-links {
        justify-content: center;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .profile-pic {
        width: 250px;
        height: 250px;
    }
    
    .skills-card {
        min-width: 100%;
    }
}

/* 添加绿色下划线，类似截图中的样式 */
#contact .section-title h2:after {
    background: var(--accent-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .contact-options {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-option {
        width: 100%;
        max-width: 100%;
    }
}

/* 教育部分样式 */
.education-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.education-item {
    background: var(--light-color);
    border-radius: 2rem;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.education-item:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.education-item h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.education-item .subtitle {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.education-item .location-date {
    color: var(--accent-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}