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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    background: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

/* ==========================================
   导航栏
   ========================================== */
.navbar {
    background: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: #6366f1;
    text-decoration: none;
    transition: color 0.3s;
}

.logo:hover {
    color: #5558e3;
}

.logo svg {
    width: 32px;
    height: 32px;
    margin-right: 8px;
}

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

.nav-links a {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #666;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #6366f1;
}

.nav-links a svg {
    width: 18px;
    height: 18px;
}

/* ==========================================
   主容器
   ========================================== */
.container {
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

.main-container {
    max-width: 920px;
    margin: 0 auto;
    padding: 60px 20px;
}

/* ==========================================
   页脚
   ========================================== */
.footer {
    background: white;
    border-top: 1px solid #e5e7eb;
    padding: 40px 20px;
    margin-top: 60px;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    color: #6b7280;
    font-size: 0.9rem;
}

/* ==========================================
   响应式
   ========================================== */
@media (max-width: 768px) {
    .nav-links {
        gap: 20px;
    }

    .nav-links a {
        font-size: 0.9rem;
    }

    .nav-links a svg {
        width: 16px;
        height: 16px;
    }
}

@media (max-width: 576px) {
    .nav-links a span {
        display: none;
    }

    .nav-links {
        gap: 15px;
    }
}