/* DeepInnov 全局样式 */

/* 颜色变量 */
:root {
    --primary-color: #165DFF;
    --primary-gradient: linear-gradient(135deg, #1D6AFF 0%, #0043CC 100%);
    --primary-gradient-hover: linear-gradient(135deg, #0043CC 0%, #003AAD 100%);
    --secondary-color: #00B42A;
    --accent-color: #FF7D00;
    --dark-color: #1D2129;
    --medium-color: #4E5969;
    --light-color: #C9CDD4;
    --white-color: #FFFFFF;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s ease;
}

/* 基础样式 */
body {
    font-family: 'Inter', 'Roboto', sans-serif;
    color: var(--dark-color);
    line-height: 1.6;
    background-color: #F7F8FA;
}

/* Logo样式 */
.navbar-brand {
    padding: 0.5rem 0;
}

.navbar-brand .logo-img {
    transition: var(--transition-fast);
    max-height: 35px;
    max-width: 200px;
    width: auto;
    height: auto;
    object-fit: contain;
    /* 如果logo是深色的，在蓝色背景上使用白色滤镜 */
    filter: brightness(0) invert(1);
}

.navbar-brand:hover .logo-img {
    transform: scale(1.02);
}

/* 如果logo本身就是白色或浅色，可以移除滤镜 */
.navbar-brand .logo-img.no-filter {
    filter: none;
}

/* 导航栏布局优化 */
.navbar-nav {
    align-items: center;
}

.navbar-collapse {
    flex-grow: 1;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: #0046cc;
    text-decoration: none;
}

/* 按钮样式 */
.btn {
    font-weight: 500;
    border-radius: 6px;
    padding: 0.5rem 1.25rem;
    transition: var(--transition-normal);
}

.btn-primary {
    background: var(--primary-gradient);
    border-color: var(--primary-color);
    box-shadow: 0 4px 6px rgba(22, 93, 255, 0.25);
}

.btn-primary:hover {
    background: var(--primary-gradient-hover);
    border-color: #0046cc;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(22, 93, 255, 0.3);
}

.btn-outline-light {
    border-width: 2px;
    font-weight: 500;
    transition: var(--transition-normal);
}

.btn-outline-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(255, 255, 255, 0.2);
}

.btn-success {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    box-shadow: 0 4px 6px rgba(0, 180, 42, 0.25);
}

.btn-success:hover {
    background-color: #009422;
    border-color: #009422;
    transform: translateY(-2px);
}

.btn-warning {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 4px 6px rgba(255, 125, 0, 0.25);
}

.btn-warning:hover {
    background-color: #e67100;
    border-color: #e67100;
    transform: translateY(-2px);
}

/* 导航栏样式 */
.navbar-dark.bg-primary {
    background: var(--primary-gradient) !important;
    box-shadow: var(--shadow-md);
    padding: 0.75rem 0;
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: 0.5px;
    font-size: 1.4rem;
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    transform: translateY(-2px);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 3px;
    background-color: var(--white-color);
    border-radius: 3px 3px 0 0;
}

.dropdown-menu {
    border: none;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.dropdown-item {
    padding: 0.6rem 1.25rem;
    transition: var(--transition-fast);
}

.dropdown-item:hover {
    background-color: #f1f5ff;
}

.dropdown-item i {
    color: var(--primary-color);
}

/* 首页横幅样式 */
.hero-banner {
    background: var(--primary-gradient);
    position: relative;
    overflow: hidden;
    padding: 3rem 0;
    box-shadow: var(--shadow-lg);
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.8;
}

.hero-banner h1 {
    font-weight: 800;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
    margin-bottom: 1.5rem;
    letter-spacing: -0.5px;
    font-size: 3.2rem;
}

.hero-banner p {
    font-weight: 400;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    margin: 0 auto 2rem;
    font-size: 1.15rem;
    opacity: 0.9;
}

.hero-banner .btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
}

.hero-banner .btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: 12px;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.card-header {
    background-color: rgba(22, 93, 255, 0.05);
    border-bottom: 1px solid rgba(22, 93, 255, 0.1);
    font-weight: 600;
}

.card-title {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

/* 表单样式 */
.form-control {
    border-radius: 6px;
    padding: 0.6rem 1rem;
    border: 1px solid #e0e3e9;
    transition: var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(22, 93, 255, 0.25);
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* 页脚样式 */
footer {
    background-color: var(--dark-color);
}

footer a {
    transition: var(--transition-fast);
}

footer a:hover {
    color: var(--primary-color) !important;
    transform: translateX(3px);
}

footer h5 {
    font-weight: 600;
    margin-bottom: 1.25rem;
}

/* 动画效果 */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* 自定义组件样式 */
.section-title {
    position: relative;
    margin-bottom: 2.5rem;
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 50px;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.section-title.text-center::after {
    left: 50%;
    transform: translateX(-50%);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: var(--primary-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
}

/* 警告提示框样式 */
.alert {
    border: none;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.alert-info {
    background-color: #E8F3FF;
    color: #0057D9;
}

/* 响应式调整 */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .hero-banner {
        padding: 3rem 0;
    }
    
    .hero-banner h1 {
        font-size: 2.5rem;
    }
}