:root {
    --truck-bg: #f8fbff;
    --truck-bg-soft: #eef6ff;
    --truck-text: #0f172a;
    --truck-muted: #64748b;
    --truck-primary: #2563eb;
    --truck-primary-soft: #eff6ff;
    --truck-cyan: #0ea5e9;
    --truck-border: rgba(59, 130, 246, 0.16);
    --truck-shadow: 0 18px 50px rgba(37, 99, 235, 0.12);
}

body.huoche-tech-page,
body.huoche-tech-shell {
    min-height: 100vh;
    padding-top: 72px;
    background:
        radial-gradient(circle at 88% 8%, rgba(56, 189, 248, 0.22), transparent 32%),
        radial-gradient(circle at 8% 92%, rgba(37, 99, 235, 0.10), transparent 30%),
        linear-gradient(135deg, var(--truck-bg), var(--truck-bg-soft) 48%, #ffffff);
    color: var(--truck-text);
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

.huoche-tech-navbar {
    margin: 0 auto;
    width: 100%;
    border: 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: 0;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
    backdrop-filter: blur(14px);
}

.huoche-tech-navbar.navbar {
    min-height: 50px;
}

.huoche-tech-navbar .container {
    width: 100%;
    max-width: 1180px;
}

.huoche-tech-navbar .navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 50px;
    color: var(--truck-text);
    font-size: 20px;
    font-weight: 900;
}

.huoche-logo-mark {
    position: relative;
    display: inline-block;
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--truck-cyan), var(--truck-primary));
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.30);
}

.huoche-logo-mark:after {
    content: "";
    position: absolute;
    left: 8px;
    right: 8px;
    top: 15px;
    height: 4px;
    border-radius: 999px;
    background: #fff;
    box-shadow: 9px -6px 0 -1px rgba(255, 255, 255, 0.78);
}

.huoche-tech-navbar .navbar-nav > li > a {
    color: #475569;
    font-weight: 700;
    padding-top: 15px;
    padding-bottom: 15px;
}

.huoche-tech-navbar .navbar-nav > li > a:hover,
.huoche-tech-navbar .navbar-nav > .active > a,
.huoche-tech-navbar .navbar-nav > .active > a:hover,
.huoche-tech-navbar .navbar-nav > .active > a:focus {
    color: var(--truck-primary);
    background: transparent;
}

.huoche-version-btn {
    margin-top: 8px;
    border: 0;
    border-radius: 999px;
    background: var(--truck-primary-soft);
    color: var(--truck-primary);
    font-weight: 800;
    box-shadow: none;
}

.huoche-version-btn:hover,
.huoche-version-btn:focus {
    color: #fff;
    background: linear-gradient(135deg, var(--truck-cyan), var(--truck-primary));
}

.huoche-tech-navbar .navbar-toggle {
    margin-top: 8px;
    border-color: #bfdbfe;
    border-radius: 12px;
}

.huoche-tech-navbar .navbar-toggle .icon-bar {
    background-color: var(--truck-primary);
}

.huoche-page {
    position: relative;
    padding-bottom: 34px;
}

.huoche-hero {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 30px;
    align-items: center;
    min-height: 560px;
}

.huoche-hero-title {
    margin: 0;
    color: var(--truck-text);
    font-size: 42px;
    font-weight: 900;
    letter-spacing: -1px;
    line-height: 1.18;
}

.huoche-hero-desc {
    margin-top: 18px;
    color: var(--truck-muted);
    font-size: 16px;
    line-height: 1.9;
}

.huoche-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.huoche-badge {
    padding: 8px 12px;
    border: 1px solid #dbeafe;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.82);
    color: var(--truck-primary);
    font-size: 13px;
    font-weight: 800;
}

.huoche-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 28px;
}

.huoche-stats-five {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.huoche-stat {
    padding: 15px;
    border: 1px solid #dbeafe;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.82);
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.05);
}

.huoche-stat strong {
    display: block;
    color: var(--truck-text);
    font-size: 22px;
    line-height: 1.2;
}

.huoche-stat span {
    display: block;
    margin-top: 6px;
    color: var(--truck-muted);
    font-size: 12px;
}

.huoche-panel {
    border: 1px solid var(--truck-border);
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: var(--truck-shadow);
    padding: 28px;
    backdrop-filter: blur(14px);
}

.huoche-panel-title {
    margin: 0 0 14px;
    color: var(--truck-text);
    font-size: 24px;
    font-weight: 900;
}

.huoche-notice {
    display: flex;
    gap: 10px;
    margin-bottom: 18px;
    padding: 14px;
    border: 1px solid #fed7aa;
    border-radius: 18px;
    background: #fff7ed;
    color: #9a3412;
    line-height: 1.6;
}

.huoche-notice span {
    flex: 1;
}

.huoche-notice strong {
    color: #c2410c;
    white-space: nowrap;
}

.huoche-input-row {
    display: flex;
    gap: 12px;
}

.huoche-plate-input {
    flex: 1;
    height: 48px;
    border: 1px solid #bfdbfe;
    border-radius: 16px;
    padding: 0 16px;
    color: var(--truck-text);
    font-size: 16px;
    font-weight: 800;
    box-shadow: none;
}

.huoche-primary-btn,
.huoche-action-card.huoche-hot {
    background: linear-gradient(135deg, var(--truck-cyan), var(--truck-primary));
    color: #fff;
    box-shadow: 0 18px 34px rgba(37, 99, 235, 0.24);
}

.huoche-primary-btn {
    min-width: 124px;
    height: 48px;
    border: 0;
    border-radius: 16px;
    padding: 0 22px;
    font-weight: 900;
    white-space: nowrap;
}

.huoche-action-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 18px;
}

.huoche-action-card {
    display: block;
    min-height: 88px;
    border: 1px solid #dbeafe;
    border-radius: 20px;
    background: #fff;
    color: var(--truck-text);
    padding: 16px;
    text-align: left;
    text-decoration: none;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
    transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.huoche-action-card:hover,
.huoche-action-card:focus {
    color: var(--truck-text);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(37, 99, 235, 0.14);
}

.huoche-action-card.huoche-hot:hover,
.huoche-action-card.huoche-hot:focus {
    color: #fff;
}

.huoche-action-card strong {
    display: block;
    font-size: 16px;
}

.huoche-action-card span {
    display: block;
    margin-top: 8px;
    color: var(--truck-muted);
    font-size: 12px;
    line-height: 1.5;
}

.huoche-action-card.huoche-hot span {
    color: #dbeafe;
}

.huoche-action-card.huoche-wide {
    grid-column: 1 / -1;
}

.huoche-footer {
    margin: 30px auto 0;
    padding: 18px 22px;
    border: 1px solid rgba(148, 163, 184, 0.20);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.82);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.huoche-footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    color: var(--truck-muted);
}

.huoche-footer strong {
    color: var(--truck-text);
}

.huoche-footer a {
    color: var(--truck-primary);
    font-weight: 800;
}

@media (max-width: 991px) {
    body.huoche-tech-page,
    body.huoche-tech-shell {
        padding-top: 66px;
    }

    .huoche-tech-navbar {
        width: 100%;
        margin-top: 0;
    }

    .huoche-tech-navbar .navbar-nav > li > a {
        padding-top: 12px;
        padding-bottom: 12px;
    }

    .huoche-version-btn {
        margin: 10px 0 14px 15px;
    }

    .huoche-hero {
        grid-template-columns: 1fr;
        min-height: auto;
        padding-top: 26px;
    }

    .huoche-hero-title {
        font-size: 32px;
    }

    .huoche-stats-five {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    body.huoche-tech-page,
    body.huoche-tech-shell {
        padding-top: 64px;
    }

    .huoche-page {
        padding-left: 8px;
        padding-right: 8px;
    }

    .huoche-hero-title {
        font-size: 28px;
    }

    .huoche-hero-desc {
        font-size: 14px;
    }

    .huoche-stats,
    .huoche-action-grid {
        grid-template-columns: 1fr;
    }

    .huoche-input-row {
        flex-direction: column;
    }

    .huoche-panel {
        padding: 20px;
    }

    .huoche-footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }
}