/* 全局样式 */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --text-color: #333;
    --light-text: #f8f9fa;
    --background-color: #ffffff;
    --light-bg: #f5f7fa;
    --dark-bg: #222831;
    --border-radius: 8px;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', 'PingFang SC', '微软雅黑', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--background-color);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--accent-color);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 50px;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: "";
    position: absolute;
    width: 70px;
    height: 4px;
    background-color: var(--primary-color);
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.highlight {
    color: var(--primary-color);
    font-weight: 600;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.btn:hover {
    background-color: var(--secondary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 头部导航 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 15px 0;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
}

nav ul li a::after {
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    bottom: -5px;
    left: 0;
    transition: width 0.3s;
}

nav ul li a:hover::after {
    width: 100%;
}

/* 英雄区 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4eafc 100%);
    overflow: hidden;
    position: relative;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
}

.profile-image {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    overflow: hidden;
    border: 8px solid white;
    box-shadow: var(--box-shadow);
    margin-right: 60px;
    flex-shrink: 0;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

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

.hero-text {
    max-width: 600px;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.tagline {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 30px;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: white;
    border-radius: 50%;
    font-size: 22px;
    color: var(--primary-color);
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.social-links a:hover {
    transform: translateY(-5px);
    color: white;
    background-color: var(--primary-color);
}

/* 关于我 */
.about {
    background-color: var(--light-bg);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-text {
    font-size: 1.1rem;
}

.about-text p {
    margin-bottom: 20px;
}

/* 项目展示 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
}

.project-card {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.project-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.project-card h3 {
    font-size: 1.5rem;
    margin: 20px 20px 10px;
}

.project-card p {
    padding: 0 20px;
    margin-bottom: 20px;
    color: #666;
}

.project-card .btn {
    margin: 0 20px 20px;
}

/* 生活照片 */
.gallery {
    background-color: var(--light-bg);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.gallery-item {
    height: 300px;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: scale(1.02);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

/* 联系方式 */
.contact-intro {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 50px;
}

.contact-methods {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 60px;
}

.contact-method {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--box-shadow);
    width: 300px;
    transition: var(--transition);
}

.contact-method:hover {
    transform: translateY(-10px);
}

.contact-method i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.contact-method h3 {
    margin-bottom: 10px;
}

.motto {
    text-align: center;
    font-size: 1.5rem;
    font-style: italic;
    margin-top: 50px;
    color: var(--secondary-color);
}

.motto p {
    position: relative;
    display: inline-block;
}

.motto p::before,
.motto p::after {
    content: '"';
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.3;
}

/* 页脚 */
footer {
    background-color: var(--dark-bg);
    color: var(--light-text);
    padding: 40px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

footer .social-links a {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--light-text);
}

footer .social-links a:hover {
    background-color: var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        padding-top: 100px;
    }

    .profile-image {
        margin-right: 0;
        margin-bottom: 40px;
    }

    .social-links {
        justify-content: center;
    }

    .about-content {
        flex-direction: column;
        text-align: center;
    }

    .section-container {
        padding: 60px 20px;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
    }

    nav ul {
        margin-top: 20px;
    }

    nav ul li {
        margin: 0 10px;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .tagline {
        font-size: 1.2rem;
    }

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

    .contact-methods {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 576px) {
    .section-title {
        font-size: 2rem;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .projects-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}