:root {
    --contact-ink: #132238;
    --contact-muted: #526275;
    --contact-line: #dce5f0;
    --contact-paper: #ffffff;
    --contact-soft: #f5f8fc;
    --contact-accent: #1557c0;
    --contact-warm: #b48612;
}

.contact-page {
    color: var(--contact-ink);
    background: #f7f9fc;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

.contact-shell {
    padding: 72px 0 88px;
}

.contact-intro {
    max-width: 720px;
    margin-bottom: 42px;
}

.contact-kicker {
    margin: 0 0 12px;
    color: var(--contact-warm);
    font-size: 14px;
    font-weight: 700;
}

.contact-intro h1 {
    margin: 0 0 16px;
    font-size: 44px;
    line-height: 1.2;
    letter-spacing: 0;
}

.contact-intro > p:last-child {
    margin: 0;
    color: var(--contact-muted);
    font-size: 17px;
    line-height: 1.8;
}

.contact-layout {
    display: grid;
    grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1.6fr);
    gap: 48px;
    align-items: start;
}

.contact-details {
    padding: 28px 0;
    border-top: 3px solid var(--contact-accent);
}

.contact-details h2,
.contact-form-section h2 {
    margin: 0 0 24px;
    font-size: 24px;
    line-height: 1.35;
    letter-spacing: 0;
}

.contact-details dl,
.contact-details dd {
    margin: 0;
}

.contact-details dl > div {
    padding: 18px 0;
    border-bottom: 1px solid var(--contact-line);
}

.contact-details dt {
    margin-bottom: 6px;
    color: var(--contact-muted);
    font-size: 13px;
}

.contact-details dd {
    overflow-wrap: anywhere;
    font-size: 16px;
    line-height: 1.65;
}

.contact-details dd a {
    color: var(--contact-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.contact-demo {
    padding: 12px 14px;
    color: #70401f;
    background: #fff3e8;
    border-left: 3px solid var(--contact-warm);
    font-size: 13px;
    line-height: 1.6;
}

.contact-details-description {
    margin: 0 0 8px;
    color: var(--contact-muted);
    line-height: 1.7;
}

.contact-form-section {
    padding: 30px;
    background: var(--contact-paper);
    border: 1px solid var(--contact-line);
    border-radius: 2px;
    box-shadow: 0 16px 36px rgba(19, 34, 56, .08);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.contact-form-section label {
    display: grid;
    gap: 8px;
    min-width: 0;
    color: #303b34;
    font-size: 14px;
}

.contact-form-section label span b {
    color: #b3261e;
}

.contact-form-section input,
.contact-form-section select,
.contact-form-section textarea {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    color: var(--contact-ink);
    background: #fff;
    border: 1px solid #b8c9dc;
    border-radius: 2px;
    font: inherit;
}

.contact-form-section textarea {
    min-height: 136px;
    resize: vertical;
    line-height: 1.65;
}

.contact-form-section input:focus,
.contact-form-section select:focus,
.contact-form-section textarea:focus {
    outline: 3px solid rgba(21, 87, 192, 0.16);
    border-color: var(--contact-accent);
}

.contact-message {
    margin-top: 20px;
}

.contact-consent {
    grid-template-columns: 20px minmax(0, 1fr);
    align-items: start;
    gap: 10px;
    margin-top: 20px;
    color: var(--contact-muted);
    line-height: 1.6;
}

.contact-consent input {
    min-height: 0;
    margin: 3px 0 0;
}

.contact-form-status {
    margin: 0 0 20px;
    padding: 11px 13px;
    border-left: 3px solid var(--contact-accent);
    color: var(--contact-accent);
    background: #eef5ff;
    line-height: 1.6;
}

.contact-form-status[data-state="error"] {
    border-left-color: #a12620;
    color: #8b211b;
    background: #fff2f0;
}

.contact-actions {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: 24px;
}

.contact-actions button {
    min-width: 128px;
    min-height: 44px;
    padding: 10px 22px;
    color: #fff;
    background: var(--contact-accent);
    border: 0;
    border-radius: 4px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.contact-actions button:hover {
    background: var(--brand-blue-dark);
}

.contact-actions button:disabled {
    cursor: wait;
    opacity: 0.65;
}

#inquiry-result {
    margin: 0;
    min-height: 24px;
    color: var(--contact-muted);
    line-height: 1.6;
}

#inquiry-result[data-state="success"] {
    color: var(--contact-accent);
}

#inquiry-result[data-state="error"] {
    color: #a12620;
}

.contact-honeypot {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

@media (max-width: 820px) {
    .contact-shell {
        padding: 46px 0 64px;
    }

    .contact-intro h1 {
        font-size: 36px;
    }

    .contact-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .contact-details {
        padding-bottom: 8px;
    }
}

@media (max-width: 560px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-form-section {
        padding: 22px 18px;
    }

    .contact-actions {
        align-items: stretch;
        flex-direction: column;
    }
}