:root {
    --bg-color: #f8f9fa;
    --text-color: #333333;
    --accent-color: #4a90e2;
    --dark-bg: #2d3436;
    --light-gray: #e9ecef;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 10px 0;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

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

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: var(--transition);
    background-color: var(--text-color);
}

/* 英雄区域样式 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    position: relative;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards 0.5s;
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards 0.8s;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator a {
    color: var(--text-color);
    font-size: 1.5rem;
    transition: var(--transition);
}

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

/* 照片轮播区域样式 */
.portfolio {
    padding: 80px 0;
}

.slider {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.slide.active {
    opacity: 1;
}

.slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.slide:hover .slide-content {
    opacity: 1;
}

.slide-caption {
    color: var(--white);
    font-size: 1.2rem;
    margin: 0;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.5);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
}

.slider-btn:hover {
    background-color: var(--white);
    color: var(--accent-color);
}

.prev {
    left: 20px;
}

.next {
    right: 20px;
}

.slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: var(--white);
}

/* 关于我区域样式 */
.about {
    padding: 80px 0;
    background-color: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-img img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 30px;
}

.skill {
    background-color: var(--light-gray);
    color: var(--text-color);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.skill:hover {
    background-color: var(--accent-color);
    color: var(--white);
}

/* 底部区域样式 */
.footer {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 40px 0;
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

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

.social-link:hover {
    color: var(--accent-color);
    transform: scale(1.1);
}

.copyright {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 动画效果 */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-20px) translateX(-50%);
    }
    60% {
        transform: translateY(-10px) translateX(-50%);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 3rem;
    }

    .slider {
        height: 500px;
    }

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
    }

    .nav-links.active {
        left: 0;
    }

    .hamburger {
        display: block;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

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

    .hero p {
        font-size: 1.2rem;
    }

    .slider {
        height: 400px;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 2rem;
    }

    .slider {
        height: 300px;
    }

    .about-text h2 {
        font-size: 2rem;
    }
}

/* 保护的联系方式样式 */
.protected-contact {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f5f5f5;
    border-radius: 4px;
}

.protected {
    color: #0066cc;
    cursor: pointer;
    text-decoration: underline;
}

.protected:hover {
    color: #004080;
}

/* 高级保护的联系方式样式 */
.protected-contact.advanced-protection {
    position: relative;
    overflow: hidden;
}

.captcha-container {
    margin: 20px 0;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #f9f9f9;
}

.btn-verify {
    margin-top: 15px;
    padding: 10px 20px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-verify:hover {
    background-color: #2980b9;
}

.success-message {
    display: none;
    background-color: #4CAF50;
    color: white;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.protected {
    color: #777;
    font-style: italic;
}

/* 联系方式样式 */
.protected-contact a {
    color: #3498db;
    text-decoration: none;
}

.protected-contact a:hover {
    text-decoration: underline;
}

.captcha-image {
    margin: 15px 0;
    display: flex;
    justify-content: center;
}

.captcha-image canvas {
    border: 1px solid #ddd;
    border-radius: 4px;
}

#captcha-input {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.btn-verify, .btn-refresh {
    padding: 8px 15px;
    margin-right: 10px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-verify:hover, .btn-refresh:hover {
    background-color: #3a7bc8;
}

.btn-refresh {
    background-color: #6c757d;
}

.btn-refresh:hover {
    background-color: #5a6268;
}

/* 弹窗样式 */
.modal {
    display: none; /* 默认隐藏 */
    position: fixed;
    z-index: 2000; /* 确保在导航栏上方 */
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* 半透明黑色背景 */
    transition: opacity 0.3s ease;
}

.modal-content {
    background-color: var(--white);
    margin: 15% auto;
    padding: 20px;
    border-radius: 10px;
    width: 80%;
    max-width: 500px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    position: relative;
    animation: modalFadeIn 0.4s;
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: var(--text-color);
    transition: var(--transition);
}

.close-btn:hover {
    color: var(--accent-color);
}

/* 弹窗动画 */
@keyframes modalFadeIn {
    from {opacity: 0; transform: translateY(-50px);}
    to {opacity: 1; transform: translateY(0);}
}
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-submit:hover {
    background-color: #2980b9;
}

.captcha-group {
    margin-bottom: 20px;
}

.success-message {
    margin-top: 20px;
}