:root {
    --bh-primary: #f26522;
    --bh-primary-hover: #d95110;
    --bh-primary-light: #fff5f0;
    --bh-primary-border: #fcd3c1;
    --bh-dark: #1b212d;
    --bh-dark-surface: #263040;
    --bh-body-bg: #f5f7fa;
    --bh-card-bg: #ffffff;
    --bh-text-main: #2c3e50;
    --bh-text-muted: #64748b;
    --bh-border-color: #e2e8f0;
    --bh-radius: 12px;
    --bh-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --bh-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
    --bh-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.header-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.header-content {
    max-width: 720px;
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    background-color: var(--bh-primary);
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.4rem 0.9rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.header-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.header-subtitle {
    font-size: 1.1rem;
    color: #94a3b8;
    font-weight: 400;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.25);
    background: transparent;
    padding: 0.8rem 1.6rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--bh-transition);
    white-space: nowrap;
}

.btn-outline:hover {
    background: #ffffff;
    color: var(--bh-dark);
    border-color: #ffffff;
    transform: translateY(-2px);
}

.main-container {
    margin: 3rem 0;
    padding: 0;overflow:hidden;
}

.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background-color: var(--bh-card-bg);
    border: 1px solid var(--bh-border-color);
    border-radius: var(--bh-radius);
    box-shadow: var(--bh-shadow-sm);
    overflow: hidden;
    transition: var(--bh-transition);
}

.faq-item:hover {
    box-shadow: var(--bh-shadow-md);
    border-color: #cbd5e1;
}

.faq-item.active {
    border-color: var(--bh-primary-border);
    box-shadow: var(--bh-shadow-md);
}

.faq-button {
    width: 100%;
    background: none;
    border: none;
    outline: none;
    padding: 1.35rem 1.6rem;
    text-align: left;
    font-family: inherit;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--bh-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: var(--bh-transition);
}

.faq-item.active .faq-button {
    color: var(--bh-primary);
    background-color: var(--bh-primary-light);
}

.faq-icon {
    width: 28px;
    height: 28px;
    min-width: 28px;
    border-radius: 50%;
    background-color: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: var(--bh-transition);
}

.faq-item.active .faq-icon {
    background-color: var(--bh-primary);
    color: #ffffff;
    transform: rotate(180deg);
}

.faq-icon::before,
.faq-icon::after {
    content: '';
    position: absolute;
    background-color: currentColor;
    border-radius: 2px;
    transition: var(--bh-transition);
}

.faq-icon::before {
    width: 12px;
    height: 2px;
}

.faq-icon::after {
    width: 2px;
    height: 12px;
}

.faq-item.active .faq-icon::after {
    opacity: 0;
}

.faq-panel {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: #ffffff;
}

.faq-panel-inner {
    overflow: hidden;
}

.faq-content {
    padding: 1.5rem 1.6rem;
    font-size: 1rem;
    color: var(--bh-text-main);
    border-top: 1px solid var(--bh-border-color);
}

.faq-item.active .faq-panel {
    grid-template-rows: 1fr;
}

.faq-content p {
    margin-bottom: 1rem;
}

.faq-content p:last-child {
    margin-bottom: 0;
}

.info-box {
    background-color: var(--bh-body-bg);
    border: 1px solid var(--bh-border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
    font-size: 0.92rem;
    color: var(--bh-text-muted);
}

.grid-2col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.card-mini {
    background-color: #f8fafc;
    border: 1px solid var(--bh-border-color);
    border-radius: 8px;
    padding: 1rem;
}

.card-mini h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--bh-dark);
    margin-bottom: 0.4rem;
}

.card-mini p {
    font-size: 0.88rem;
    color: var(--bh-text-muted);
    margin: 0;
}

.tech-table-wrapper {
    width: 100%;
    overflow-x: auto;
    margin: 1rem 0;
    border-radius: 8px;
    border: 1px solid var(--bh-border-color);
}

.tech-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
    text-align: left;
}

.tech-table th, 
.tech-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--bh-border-color);
}

.tech-table th {
    background-color: #f1f5f9;
    font-weight: 700;
    color: var(--bh-dark);
}

.tech-table tr:last-child td {
    border-bottom: none;
}

.tech-table tr:nth-child(even) {
    background-color: #f8fafc;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.tag {
    background-color: #f1f5f9;
    color: var(--bh-dark);
    border: 1px solid var(--bh-border-color);
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.custom-list {
    list-style: none;
    margin: 1rem 0;
}

.custom-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
}

.custom-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--bh-primary);
    font-weight: bold;
}

.contact-banner {
    background: linear-gradient(135deg, #ffffff 0%, var(--bh-primary-light) 100%);
    border: 1px solid var(--bh-primary-border);
    border-radius: var(--bh-radius);
    padding: 2.5rem;
    margin-top: 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    box-shadow: var(--bh-shadow-sm);
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--bh-dark);
    margin-bottom: 0.5rem;
}

.contact-info p {
    color: var(--bh-text-muted);
    font-size: 0.98rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bh-primary);
    color: #ffffff;
    padding: 0.9rem 1.8rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: var(--bh-transition);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(242, 101, 34, 0.25);
}

.btn-primary:hover {
    background-color: var(--bh-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(242, 101, 34, 0.35);
}

@media (max-width: 768px) {
    .header {
        padding: 2.5rem 1rem;
    }

    .main-container {
        margin: 2rem auto;
        padding: 0 1rem;
    }

    .contact-banner {
        padding: 1.8rem 1.2rem;
        flex-direction: column;
        text-align: center;
    }

    .btn-primary, .btn-outline {
        width: 100%;
        justify-content: center;
    }

    .faq-button {
        padding: 1.1rem 1.2rem;
        font-size: 1rem;
    }

    .faq-content {
        padding: 1.2rem 1.2rem;
    }
}