/* ========== 全局样式 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #C4956A;
    --primary-light: #F5EBE0;
    --cream: #FFFCF7;
    --white: #FFFFFF;
    --gray-light: #F8F5F2;
    --gray: #E8E4E0;
    --text-dark: #3D3229;
    --text-gray: #6B5E52;
    --text-light: #9A8D82;
    --shadow: 0 2px 12px rgba(60, 50, 40, 0.08);
    --shadow-hover: 0 8px 24px rgba(60, 50, 40, 0.12);
    --radius: 16px;
    --accent: #E8C4A0;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background-color: var(--cream);
    color: var(--text-dark);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ========== 导航栏 ========== */
.navbar {
    background: var(--white);
    padding: 15px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(60, 50, 40, 0.06);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    gap: 6px;
}

.nav-menu a {
    color: var(--text-gray);
    font-size: 0.95rem;
    padding: 10px 18px;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: var(--primary);
    color: var(--white);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 22px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ========== 通用组件 ========== */
.section {
    padding: 70px 5%;
}

.section-title {
    text-align: center;
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 45px;
    font-weight: 500;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    margin: 14px auto 0;
    border-radius: 2px;
}

.btn {
    display: inline-block;
    padding: 11px 26px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 25px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    background: #B5865B;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(196, 149, 106, 0.3);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--primary);
    color: var(--primary);
}

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

/* ========== 页面头部 ========== */
.page-header {
    background: linear-gradient(135deg, var(--primary-light), var(--cream));
    padding: 55px 5%;
    text-align: center;
}

.page-header h1 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 500;
}

.page-header p {
    color: var(--text-gray);
    font-size: 1rem;
}

/* ========== 页脚 ========== */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 40px 5%;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-bottom: 18px;
}

.footer-links a {
    color: var(--gray);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

.footer-text {
    color: var(--text-light);
    font-size: 0.85rem;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 5px;
        box-shadow: var(--shadow);
        display: none;
    }
    
    .nav-menu.show {
        display: flex;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .section {
        padding: 45px 5%;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .page-header h1 {
        font-size: 1.6rem;
    }
}