/* 全局字体样式增强 */
body {
    font-size: 16px;
}

/* 导航栏样式增强 */
.navbar {
    padding: 12px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}
.navbar-brand {
    display: flex;
    align-items: center;
    font-size: 1.4rem;
    font-weight: 600;
    color: #3a66ff;
    letter-spacing: -0.5px;
}
.navbar-brand .brand-text {
    color: #333333;
    margin-left: 4px;
    font-size: 1.5rem;
}
.navbar-brand img {
    height: 36px;
    margin-right: 10px;
    transition: transform 0.3s ease;
}
.navbar-brand:hover img {
    transform: scale(1.05);
}
.navbar-nav {
    gap: 8px;
}
.navbar-nav .nav-link {
    font-size: 1.05rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.2s ease;
    color: #4a5568;
}
.navbar-nav .nav-link:hover {
    color: #3a66ff;
    background-color: rgba(58, 102, 255, 0.05);
}
.navbar-nav .nav-link.active {
    color: #3a66ff;
    background-color: rgba(58, 102, 255, 0.08);
    font-weight: 600;
}
.dropdown-menu {
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border: 1px solid rgba(0,0,0,0.08);
    padding: 8px 0;
}
.dropdown-item {
    padding: 8px 16px;
    font-weight: 500;
    transition: all 0.2s ease;
}
.dropdown-item:hover {
    background-color: rgba(58, 102, 255, 0.05);
    color: #3a66ff;
}
.theme-toggle {
    color: #4a5568;
    transition: all 0.2s ease;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.theme-toggle:hover {
    color: #3a66ff;
    background-color: rgba(58, 102, 255, 0.05);
}

/* 深色模式导航栏样式 */
[data-bs-theme="dark"] .navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
[data-bs-theme="dark"] .navbar-brand {
    color: #60a5fa;
}
[data-bs-theme="dark"] .navbar-brand .brand-text {
    color: #ffffff;
}
[data-bs-theme="dark"] .navbar-nav .nav-link {
    color: #e2e8f0;
}
[data-bs-theme="dark"] .navbar-nav .nav-link:hover {
    color: #60a5fa;
    background-color: rgba(96, 165, 250, 0.1);
}
[data-bs-theme="dark"] .navbar-nav .nav-link.active {
    color: #60a5fa;
    background-color: rgba(96, 165, 250, 0.15);
}
[data-bs-theme="dark"] .theme-toggle {
    color: #e2e8f0;
}
[data-bs-theme="dark"] .theme-toggle:hover {
    color: #60a5fa;
    background-color: rgba(96, 165, 250, 0.1);
}

h1, .h1 { font-size: 2.8rem; }
h2, .h2 { font-size: 2.2rem; }
h3, .h3 { font-size: 1.8rem; }
h4, .h4 { font-size: 1.4rem; }
p { font-size: 1.1rem; }
.btn { font-size: 1.05rem; font-weight: 500; }
.btn-lg { font-size: 1.2rem; }
.form-label { font-size: 1.1rem; font-weight: 500; }
.form-control, .form-select { font-size: 1.05rem; }