:root {
    --primary-color: #0a3d62;
    --secondary-color: #2c3e50;
    --accent-color: #3498db;
    --light-color: #ecf0f1;
    --text-color: #333;
    --header-height: 136px;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f9f9f9;
    color: var(--text-color);
    line-height: 1.6;
}

.text-three-overflow {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    min-height: calc(1em * 3 * 1.6);
}

/* 重置button的外轮廓效果 */
.btn:focus,
.btn:active,
.btn.active:focus,
.btn.active:active,
.btn:focus-visible,
.btn:focus:not(:focus-visible),
.btn-check:focus + .btn,
.btn-check:checked + .btn,
.btn-check:active + .btn,
.btn-check:focus:not(:focus-visible) + .btn,
.btn-outline-primary:focus,
.btn-outline-primary:active,
.btn-outline-primary.active:focus,
.btn-outline-primary.active:active,
.btn-outline-secondary:focus,
.btn-outline-secondary:active,
.btn-outline-secondary.active:focus,
.btn-outline-secondary.active:active,
.btn-outline-success:focus,
.btn-outline-success:active,
.btn-outline-success.active:focus,
.btn-outline-success.active:active,
.btn-outline-danger:focus,
.btn-outline-danger:active,
.btn-outline-danger.active:focus,
.btn-outline-danger.active:active,
.btn-outline-warning:focus,
.btn-outline-warning:active,
.btn-outline-warning.active:focus,
.btn-outline-warning.active:active,
.btn-outline-info:focus,
.btn-outline-info:active,
.btn-outline-info.active:focus,
.btn-outline-info.active:active,
.btn-outline-light:focus,
.btn-outline-light:active,
.btn-outline-light.active:focus,
.btn-outline-light.active:active,
.btn-outline-dark:focus,
.btn-outline-dark:active,
.btn-outline-dark.active:focus,
.btn-outline-dark.active:active,
.btn-primary:focus,
.btn-primary:active,
.btn-primary.active:focus,
.btn-primary.active:active,
.btn-secondary:focus,
.btn-secondary:active,
.btn-secondary.active:focus,
.btn-secondary.active:active,
.btn-success:focus,
.btn-success:active,
.btn-success.active:focus,
.btn-success.active:active,
.btn-danger:focus,
.btn-danger:active,
.btn-danger.active:focus,
.btn-danger.active:active,
.btn-warning:focus,
.btn-warning:active,
.btn-warning.active:focus,
.btn-warning.active:active,
.btn-info:focus,
.btn-info:active,
.btn-info.active:focus,
.btn-info.active:active,
.btn-light:focus,
.btn-light:active,
.btn-light.active:focus,
.btn-light.active:active,
.btn-dark:focus,
.btn-dark:active,
.btn-dark.active:focus,
.btn-dark.active:active,
.btn-link:focus,
.btn-link:active,
.btn-link.active:focus,
.btn-link.active:active,
.accordion-button:focus,
.accordion-button:active,
.accordion-button:not(.collapsed),
.accordion-button:focus:not(:focus-visible),
.accordion-button:focus-visible,
.accordion-button:active:focus,
.accordion-button:active:not(:focus-visible),
.accordion-button:active:focus-visible,
.accordion-button:not(.collapsed):focus,
.accordion-button:not(.collapsed):active,
.accordion-button:not(.collapsed):focus:not(:focus-visible),
.accordion-button:not(.collapsed):focus-visible,
.accordion-button:not(.collapsed):active:focus,
.accordion-button:not(.collapsed):active:not(:focus-visible),
.accordion-button:not(.collapsed):active:focus-visible {
    box-shadow: none !important;
    outline: none !important;
}


.cover-image-wrap {
    position: relative;
    padding-top: 135.71%;
    object-fit: cover;
    border-radius: 10px;
    transition: all 0.3s ease;
    background-color: #f8f9fa;
}

.cover-image {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.hero-banner {
    background: linear-gradient(rgba(10, 61, 98, 0.8), rgba(10, 61, 98, 0.8)), 
                url('assets/images/hero-banner.jpg') no-repeat center center/cover;
    padding: 120px 0;
}

.section-title {
    font-size: 28px;
    color: var(--primary-color);
    position: relative;
    margin-bottom: 40px;
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 10px auto 0;
}

.navbar-nav .nav-link:hover {
    color: var(--accent-color) !important;
}

.navbar-nav .nav-link.active {
    color: var(--accent-color) !important;
}

.service-card:hover {
    transform: translateY(-5px);
    transition: transform 0.3s;
}

.stat-card {
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.text-primary {
    color: var(--primary-color) !important;
}

.text-info {
    color: var(--accent-color) !important;
}

.text-left-right-center {
    text-align: justify;
    hyphens: auto;
    word-spacing: normal;
}

/* Improve text visibility on card overlays */
.card-overlay-text {
    background: rgba(0, 0, 0, 0.7);
    color: white !important;
    padding: 8px 12px;
    border-radius: 4px;
}

.card-title-overlay {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.3));
    color: white !important;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.bg-light {
    background-color: var(--light-color) !important;
}

@media (max-width: 768px) {
    .hero-banner {
        padding: 80px 0;
    }
    
    .hero-banner h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 24px;
    }
}