/* 全局样式 */
:root {
    --primary-color: #b38d54;
    --secondary-color: #fff;
    --dark-bg: #0a1a1f;
    --text-color: #333;
    --light-text: #fff;
    --section-padding: 80px 0;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

p {
    margin-bottom: 15px;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #8e6f43;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-color);
    color: var(--secondary-color);
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn:hover {
    background-color: #8e6f43;
    color: var(--secondary-color);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

.section {
    padding: var(--section-padding);
}

.section-title {
    font-size: 36px;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}

.section-dark {
    background-color: var(--dark-bg);
    color: var(--light-text);
}

.section-dark .section-title::after {
    background-color: var(--primary-color);
}

.section-number {
    font-size: 48px;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 10px;
    display: block;
}

/* 主内容区样式 */
.main-content-full {
    width: 100%;
}

/* 页脚样式 */
footer {
    background-color: var(--dark-bg);
    color: var(--light-text);
    padding: 30px 0;
    text-align: center;
}

/* 点阵图案背景 */
.dot-pattern {
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background-image: radial-gradient(var(--primary-color) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.2;
    z-index: -1;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .section-title {
        font-size: 32px;
    }
    
    .section-number {
        font-size: 40px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 60px;
    }
    
    .main-content {
        margin-left: 60px;
        width: calc(100% - 60px);
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-number {
        font-size: 36px;
    }
}

@media (max-width: 576px) {
    .sidebar {
        width: 100%;
        height: 60px;
        flex-direction: row;
        padding: 0 20px;
        justify-content: flex-start;
    }
    
    .sidebar-logo {
        margin-bottom: 0;
    }
    
    .sidebar-logo img {
        width: 40px;
        transform: rotate(0);
    }
    
    .sidebar-logo img:hover {
        transform: scale(1.1);
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
        margin-top: 60px;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .section-number {
        font-size: 32px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
}