:root {
    --bg: #f4f8ff;
    --panel: #ffffff;
    --card: #ffffff;
    --text: #071225;
    --muted: #4b5c76;
    --primary: #0f8fff;
    --primary-strong: #0b6ed1;
    --success: #1ac389;
    --border: #d9e4f4;
    --shadow: 0 14px 34px rgba(10, 32, 68, 0.16);
    --radius: 14px;
    --radius-sm: 10px;
    --radius-lg: 18px;
    --maxw: 1180px;
}

.ofh-root,
.ofh-root *,
.ofh-root *::before,
.ofh-root *::after {
    box-sizing: border-box;
}

.ofh-root {
    margin: 0;
    font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: radial-gradient(circle at 14% 18%, rgba(15, 143, 255, 0.14), transparent 32%),
                radial-gradient(circle at 78% 8%, rgba(26, 195, 137, 0.14), transparent 26%),
                var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

.ofh-root a {
    color: inherit;
    text-decoration: none;
}

.ofh-root .container {
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 20px;
}

.ofh-root .topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.ofh-root .topbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 14px 20px;
}

.ofh-root .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.ofh-root .brand a {
    font-size: 18px;
}

.ofh-root .badge {
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(14, 127, 209, 0.12);
    color: var(--primary);
    font-size: 12px;
}

.ofh-root .nav {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 14px;
}

.ofh-root .nav-link {
    padding: 8px 10px;
    color: var(--muted);
    transition: color 0.2s, transform 0.2s;
}

.ofh-root .nav-link:hover {
    color: var(--primary);
    transform: translateY(-1px);
}

.ofh-root .cta {
    padding: 10px 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    color: #fdfefe;
    border-radius: 999px;
    font-weight: 600;
    box-shadow: var(--shadow);
}

.ofh-root .section {
    padding: 80px 0;
}

.ofh-root .section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.ofh-root .hero {
    padding-top: 60px;
}

.ofh-root .hero-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
    align-items: center;
}

.ofh-root .hero-copy h1 {
    font-size: 34px;
    margin: 10px 0 12px;
    line-height: 1.25;
}

.ofh-root .eyebrow {
    text-transform: uppercase;
    color: var(--primary);
    letter-spacing: 1px;
    font-size: 12px;
    margin: 0;
}

.ofh-root .lede {
    color: var(--muted);
    margin: 0 0 16px;
    max-width: 520px;
}

.ofh-root .hero-actions {
    display: flex;
    gap: 12px;
    margin: 16px 0 22px;
}

.ofh-root .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s, background 0.15s, border 0.15s;
    color: var(--text);
    background: transparent;
}

.ofh-root .btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    color: #04121b;
    box-shadow: var(--shadow);
}

.ofh-root .btn.ghost {
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.02);
}

.ofh-root .btn.full {
    width: 100%;
}

.ofh-root .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.ofh-root .hero-metrics {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.ofh-root .metric {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    min-width: 120px;
}

.ofh-root .metric-number {
    font-size: 22px;
    font-weight: 700;
}

.ofh-root .metric-label {
    display: block;
    color: var(--muted);
    font-size: 13px;
}

.ofh-root .hero-card {
    background: linear-gradient(145deg, #ffffff, #eaf4ff);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: var(--shadow);
}

.ofh-root .hero-card-head {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.ofh-root .hero-card-title {
    margin: 0;
    font-weight: 700;
}

.ofh-root .hero-card-sub {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.ofh-root .hero-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}

.ofh-root .hero-form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--muted);
}

.ofh-root .hero-form input,
.ofh-root .hero-form select {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    color: var(--text);
    font-size: 14px;
}

.ofh-root .routes {
    background: #f1f5fb;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.ofh-root .routes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.ofh-root .route-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: var(--shadow);
}

.ofh-root .route-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.ofh-root .route-line {
    font-weight: 700;
    font-size: 16px;
}

.ofh-root .route-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    color: var(--muted);
    font-size: 13px;
}

.ofh-root .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.ofh-root .tag {
    padding: 4px 8px;
    border-radius: 999px;
    background: rgba(14, 127, 209, 0.12);
    color: var(--primary);
    font-size: 12px;
}

.ofh-root .route-bottom {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 10px;
}

.ofh-root .price {
    font-weight: 700;
    font-size: 18px;
}

.ofh-root .score {
    color: var(--success);
    font-weight: 600;
}

.ofh-root .quick-filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.ofh-root .chip {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 8px 12px;
    color: var(--text);
    cursor: pointer;
    transition: border 0.15s, transform 0.15s, box-shadow 0.15s;
}

.ofh-root .chip:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.ofh-root .status-grid,
.ofh-root .solution-grid,
.ofh-root .faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 14px;
}

.ofh-root .card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
}

.ofh-root .card h3 {
    margin: 0 0 8px;
}

.ofh-root .card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.ofh-root .bullet-list {
    margin: 10px 0 0;
    padding-left: 18px;
    color: var(--muted);
}

.ofh-root .faq-item + .faq-item {
    border-top: 1px solid var(--border);
    padding-top: 10px;
}

.ofh-root .contact-card {
    margin-top: 24px;
    padding: 24px 28px;
    border-radius: var(--radius-lg);
    border: none;
    background: linear-gradient(135deg, rgba(15, 143, 255, 0.12), rgba(26, 195, 137, 0.18));
    box-shadow: var(--shadow);
}

.ofh-root .contact-card--highlight {
    display: flex;
    justify-content: center;
    text-align: center;
}

.ofh-root .contact-card-main {
    max-width: 520px;
}

.ofh-root .contact-card-cta {
    margin-top: 16px;
    padding-inline: 32px;
}

.ofh-root .footer {
    border-top: 1px solid var(--border);
    background: #f8fafc;
    padding: 28px 0;
}

.ofh-root .footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 18px;
    flex-wrap: wrap;
}

.ofh-root .footer-brand {
    font-weight: 700;
    margin: 0 0 6px;
}

.ofh-root .footer-desc {
    margin: 0;
    color: var(--muted);
    max-width: 420px;
}

.ofh-root .footer-links {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    color: var(--muted);
}

.ofh-root .footer-links a:hover {
    color: var(--primary);
}

.ofh-root .footer-meta {
    color: var(--muted);
    font-size: 13px;
    text-align: right;
}

@media (max-width: 768px) {
    .ofh-root .topbar .container {
        flex-wrap: wrap;
    }
    .ofh-root .nav {
        width: 100%;
        justify-content: space-between;
    }
    .ofh-root .section {
        padding: 60px 0;
    }
    .ofh-root .section-header {
        align-items: flex-start;
    }
}