/* 全局变量 - 灰度调色板 */
:root {
    /* 浅色模式 */
    --bg-primary: #f0f0f3;
    --bg-secondary: #e6e6e9;
    --text-primary: #333333;
    --text-secondary: #666666;
    --shadow-light: rgba(255, 255, 255, 0.8);
    --shadow-dark: rgba(0, 0, 0, 0.1);
    --accent: #888888;
    --border-radius: 20px;
    --transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

/* 深色模式 */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2a2a2a;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --shadow-light: rgba(255, 255, 255, 0.05);
    --shadow-dark: rgba(0, 0, 0, 0.3);
    --accent: #999999;
}

/* 基本重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

/* 新拟态基础样式 */
.neumorphic-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: 
        8px 8px 16px var(--shadow-dark),
        -8px -8px 16px var(--shadow-light);
    transition: var(--transition);
}

/* 新拟态按钮基础样式 */
.neumorphic-btn {
    background: var(--bg-primary);
    border: none;
    border-radius: var(--border-radius);
    padding: 15px 30px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    box-shadow: 
        5px 5px 10px var(--shadow-dark),
        -5px -5px 10px var(--shadow-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    z-index: 1000;
    background: rgba(240, 240, 243, 0.8);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

[data-theme="dark"] .navbar {
    background: rgba(26, 26, 26, 0.8);
}

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

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-image {
    height: 40px;
    width: auto;
    transition: var(--transition);
    cursor: pointer;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu li a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.nav-menu li a:hover::after {
    width: 100%;
}

/* 深色/浅色模式切换按钮 */
.mode-toggle {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: var(--bg-primary);
    box-shadow: 
        5px 5px 10px var(--shadow-dark),
        -5px -5px 10px var(--shadow-light);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mode-toggle:hover {
    transform: scale(1.1);
}

.mode-toggle:active {
    box-shadow: 
        inset 5px 5px 10px var(--shadow-dark),
        inset -5px -5px 10px var(--shadow-light);
    transform: scale(0.95);
}

.toggle-icon {
    width: 20px;
    height: 20px;
    background: var(--accent);
    border-radius: 50%;
    position: relative;
    transition: var(--transition);
}

.toggle-icon::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    opacity: 0.5;
    transition: var(--transition);
}

[data-theme="dark"] .toggle-icon {
    background: var(--accent);
}

[data-theme="dark"] .toggle-icon::before {
    border-color: var(--accent);
    opacity: 0.7;
}

/* 英雄区域样式 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
    position: relative;
    overflow: hidden;
}

.hero-parallax-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    background-size: cover;
    background-position: center;
    pointer-events: none;
    will-change: transform;
    opacity: 0.2;
    z-index: 0;
}

.hero-content {
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    transition: var(--transition);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    transition: var(--transition);
}

/* 按钮悬停和点击效果 */
.btn:hover {
    transform: translateY(-3px);
    box-shadow: 
        8px 8px 16px var(--shadow-dark),
        -8px -8px 16px var(--shadow-light);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 
        inset 8px 8px 16px var(--shadow-dark),
        inset -8px -8px 16px var(--shadow-light);
}

/* 区域标题样式 */
.section-title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    transition: var(--transition);
    position: relative;
    padding-bottom: 20px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
}

/* 照片画廊样式 */
.gallery {
    padding: 100px 20px;
    position: relative;
}

.gallery-grid {
    column-count: 3;
    column-gap: 15px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

@media (min-width: 768px) {
    .gallery-grid {
        column-count: 4;
    }
}

@media (min-width: 1024px) {
    .gallery-grid {
        column-count: 5;
    }
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all 0.4s ease;
    margin-bottom: 15px;
    break-inside: avoid;
    display: block;
    width: 100%;
    z-index: 1;
}

.gallery-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: var(--border-radius);
    transition: all 0.4s ease;
    cursor: pointer;
    position: relative;
    display: block;
    transform: scale(1);
    filter: blur(0px) brightness(100%);
}

/* 景深效果：只有当有图片被hover时，其他图片才会模糊 */
.gallery-grid.blur-active .gallery-item:not(:hover) {
    opacity: 0.5;
    filter: blur(2px) brightness(70%);
    z-index: 0;
}

.gallery-grid.blur-active .gallery-item:not(:hover) .gallery-image {
    transform: scale(0.95);
}

.gallery-item:hover {
    z-index: 10;
}

.gallery-item:hover .gallery-image {
    transform: scale(1.05);
    box-shadow: 
        15px 15px 30px var(--shadow-dark),
        -15px -15px 30px var(--shadow-light),
        0 0 30px rgba(136, 136, 136, 0.4);
}

/* 移除重复的悬停效果，保留通过.gallery-item:hover .gallery-image实现的效果 */


.gallery-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(0, 0, 0, 0.1) 100%);
    opacity: 0;
    transition: var(--transition);
    z-index: 1;
}

.gallery-image:hover::before {
    opacity: 1;
}

/* 关于部分样式 */
.about {
    padding: 100px 20px;
    background: var(--bg-secondary);
    transition: var(--transition);
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    width: 100%;
    height: 500px;
    background-size: cover;
    background-position: center;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.about-image:hover {
    transform: scale(1.02);
    box-shadow: 
        15px 15px 30px var(--shadow-dark),
        -15px -15px 30px var(--shadow-light);
}

.about-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

/* 页脚样式 */
.footer {
    padding: 50px 20px;
    background: var(--bg-secondary);
    text-align: center;
    transition: var(--transition);
}

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

.footer p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-primary);
        flex-direction: column;
        gap: 0;
        padding: 20px 0;
        box-shadow: 0 10px 20px var(--shadow-dark);
        border-radius: 0 0 var(--border-radius) var(--border-radius);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
        text-align: center;
    }
    
    .nav-menu li a {
        display: block;
        padding: 15px;
        width: 100%;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .gallery-image {
        height: 300px;
    }
    
    .about-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image {
        height: 300px;
    }
    
    .contact-form {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .gallery {
        padding: 60px 15px;
    }
    
    .about {
        padding: 60px 15px;
    }
    
    .contact {
        padding: 60px 15px;
    }
}