/* 基础样式 - 农业主题色彩 */
:root {
    --primary-green: #2d5a27;
    --secondary-green: #4a7c59;
    --light-green: #8fcb9b;
    --earth-brown: #8d6b4f;
    --sand: #d4b896;
    --cream: #f5f1e6;
    --dark-text: #333333;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: var(--cream);
    color: var(--dark-text);
    line-height: 1.6;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 5% 15%, rgba(141, 107, 79, 0.05) 0%, transparent 25%),
        radial-gradient(circle at 95% 85%, rgba(77, 124, 89, 0.05) 0%, transparent 25%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

section {
    margin-bottom: 4rem;
}

h1, h2, h3 {
    color: var(--primary-green);
}

/* 头部样式 */
header {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
    color: white;
    padding: 3rem 0;
    text-align: center;
    border-bottom: 5px solid var(--earth-brown);
    position: relative;
    overflow: hidden;
}

header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%234a7c59' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.1;
}

.header-content {
    position: relative;
    z-index: 1;
}

.profile-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 5px solid var(--cream);
    margin: 0 auto 1rem;
    background-color: var(--light-green);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.profile-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.default-avatar {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary-green);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.tagline {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.contact-item {
    margin: 0 1rem;
    display: flex;
    align-items: center;
}

.contact-item i {
    margin-right: 0.5rem;
}

/* 导航样式 */
nav {
    background: var(--earth-brown);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: center;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1.5rem;
    margin: 0 0.5rem;
    border-radius: 4px;
    transition: background 0.3s;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* 卡片样式 */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.card {
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
    border-top: 4px solid var(--secondary-green);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.card h2 {
    color: var(--primary-green);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.card h2 i {
    margin-right: 10px;
    font-size: 1.5rem;
}

.card ul {
    list-style-type: none;
    padding-left: 0;
}

.card li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
}

.card li::before {
    content: "🌱";
    position: absolute;
    left: 0;
}

/* 专业技能进度条 */
.skill {
    margin-bottom: 1.5rem;
}

.skill-name {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.skill-bar {
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background: var(--secondary-green);
    border-radius: 4px;
}

/* 工作经历时间线 */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 2rem auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--secondary-green);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-content {
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.timeline-date {
    font-weight: bold;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: white;
    border: 4px solid var(--secondary-green);
    border-radius: 50%;
    top: 15px;
    z-index: 1;
}

.timeline-item:nth-child(odd)::after {
    right: -10px;
}

.timeline-item:nth-child(even)::after {
    left: -10px;
}

/* 数据可视化展示区 */
.data-visualization {
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 2rem;
    margin: 3rem 0;
}

.viz-title {
    color: var(--primary-green);
    margin-bottom: 1.5rem;
    text-align: center;
}

.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.chart {
    background: var(--cream);
    border-radius: 8px;
    padding: 1.5rem;
    height: 250px;
    position: relative;
}

.chart-title {
    font-size: 1rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
    text-align: center;
}

/* 联系表单 */
.contact-form {
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 2rem;
    margin: 3rem 0;
}

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

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

.form-control {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-control:focus {
    border-color: var(--secondary-green);
    outline: none;
    box-shadow: 0 0 0 2px rgba(77, 124, 89, 0.2);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

.btn {
    background: var(--primary-green);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.3s;
}

.btn:hover {
    background: var(--secondary-green);
}

/* 页脚 */
footer {
    background: var(--primary-green);
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.social-links {
    display: flex;
    justify-content: center;
    margin: 1rem 0;
}

.social-link {
    color: white;
    margin: 0 1rem;
    font-size: 1.5rem;
    transition: color 0.3s;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .cards {
        grid-template-columns: 1fr;
    }
    
    .charts-container {
        grid-template-columns: 1fr;
    }
    
    .nav-container {
        flex-wrap: wrap;
    }
    
    .nav-link {
        margin: 0.25rem;
        padding: 0.5rem 1rem;
    }
    
    .timeline::after {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    .timeline-item::after {
        left: 21px;
    }
    
    .contact-info {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-item {
        margin: 0.5rem 0;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* 叶子飘落效果 */
.leaf {
    position: absolute;
    top: -50px;
    font-size: 1.5rem;
    opacity: 0.7;
    z-index: -1;
    user-select: none;
}

@keyframes fall {
    0% { transform: translateY(0) rotate(0deg); }
    100% { transform: translateY(100vh) rotate(360deg); }
}

/* 个人理念部分 */
.philosophy {
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 2rem;
    margin: 2rem 0;
    text-align: center;
}

.philosophy blockquote {
    font-style: italic;
    color: var(--primary-green);
    font-size: 1.2rem;
    margin: 1.5rem 0;
    padding: 0 2rem;
}

.philosophy .author {
    font-weight: bold;
    color: var(--earth-brown);
}

/* 项目展示区 */
.project-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.project-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.project-image {
    height: 200px;
    background-color: var(--light-green);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-green);
    font-size: 3rem;
}

.project-content {
    padding: 1.5rem;
}

.project-title {
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    margin: 1rem 0;
}

.project-tag {
    background: var(--light-green);
    color: var(--primary-green);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

/* 统计数据部分 */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--earth-brown);
    font-size: 0.9rem;
}

/* 博客文章部分 */
.blog-posts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.blog-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.blog-card:hover {
    transform: translateY(-5px);
}

.blog-image {
    height: 180px;
    background-color: var(--light-green);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-green);
    font-size: 2rem;
}

.blog-content {
    padding: 1.5rem;
}

.blog-title {
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.blog-date {
    color: var(--earth-brown);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.blog-excerpt {
    margin-bottom: 1rem;
}

.read-more {
    color: var(--secondary-green);
    text-decoration: none;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
}

.read-more i {
    margin-left: 5px;
    transition: transform 0.3s;
}

.read-more:hover i {
    transform: translateX(5px);
}

/* 服务部分 */
.services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.service-card {
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.service-title {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

/* 关注领域标签 */
.focus-areas {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin: 1rem 0;
}

.focus-area {
    margin: 0.5rem 1rem;
    padding: 0.5rem 1rem;
    background: var(--light-green);
    border-radius: 20px;
    color: var(--primary-green);
    font-weight: 500;
}