/* ===== 联系页 · 通讯录式专用版式 ===== */
.page-contact {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 80px;
    background: var(--c-bg);
}

/* ---------- 页面头 ---------- */
.page-contact .contact-lead {
    position: relative;
    padding: 48px 0 36px;
    border-bottom: 1px solid var(--c-line);
    margin-bottom: 56px;
}

.page-contact .contact-lead::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 68px;
    height: 5px;
    background: var(--c-red);
}

.page-contact .contact-lead::after {
    content: "";
    position: absolute;
    right: 0;
    top: 56px;
    width: 132px;
    height: 132px;
    background: repeating-linear-gradient(
        -45deg,
        var(--c-green-deep) 0 5px,
        var(--c-bg) 5px 12px
    );
    opacity: 0.07;
    pointer-events: none;
}

.page-contact .contact-lead .kicker {
    margin-top: 30px;
}

.page-contact .contact-lead h1 {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(2.375rem, 5vw, 3.875rem);
    line-height: 1.05;
    margin: 12px 0 16px;
    letter-spacing: 0.01em;
}

.page-contact .contact-lead .lead {
    max-width: 46em;
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--c-ink);
}

/* ---------- 联系方式卡片 ---------- */
.page-contact .contact-directory {
    margin-bottom: 72px;
}

.page-contact .directory-grid {
    display: grid;
    gap: 16px;
    margin-top: 28px;
}

.page-contact .contact-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    padding: 26px 22px 24px;
    text-decoration: none;
    color: var(--c-ink);
    overflow: hidden;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-visible {
    border-color: var(--c-line-strong);
    box-shadow: 6px 6px 0 rgba(31, 138, 76, 0.08);
}

.page-contact .contact-card::after {
    content: "";
    position: absolute;
    right: 0;
    top: 0;
    width: 5px;
    height: 100%;
    background: var(--c-green);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.18s ease;
}

.page-contact .contact-card:hover::after,
.page-contact .contact-card:focus-visible::after {
    transform: scaleY(1);
}

.page-contact .card-index {
    font-family: var(--font-num);
    font-size: 0.8125rem;
    color: var(--c-muted);
    letter-spacing: 0.08em;
}

.page-contact .card-label {
    display: block;
    margin-top: 18px;
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--c-muted);
}

.page-contact .card-value {
    display: block;
    margin-top: 10px;
    font-size: 1.375rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--c-ink);
    word-break: break-word;
}

.page-contact .card-hint {
    display: block;
    margin-top: auto;
    padding-top: 18px;
    font-size: 0.8125rem;
    color: var(--c-muted);
}

.page-contact .contact-card-phone .card-value {
    font-family: var(--font-num);
    font-size: clamp(2rem, 8vw, 3.5rem);
    line-height: 1;
    letter-spacing: 0.01em;
    white-space: nowrap;
    color: var(--c-green);
}

.page-contact .contact-card-mail .card-value {
    font-family: var(--font-body);
    font-size: clamp(1.125rem, 3.5vw, 1.5rem);
    word-break: break-all;
    color: var(--c-blue);
}

.page-contact .contact-card-address .card-value {
    font-size: 1.25rem;
    line-height: 1.5;
    word-break: break-word;
}

/* ---------- 沟通边界 ---------- */
.page-contact .contact-boundary {
    margin-bottom: 72px;
}

.page-contact .boundary-layout {
    display: grid;
    gap: 28px;
    margin-top: 28px;
    align-items: start;
}

.page-contact .boundary-media {
    border-left: 5px solid var(--c-green);
}

.page-contact .boundary-copy .lead {
    font-size: 1rem;
    line-height: 1.75;
    margin: 0 0 8px;
}

.page-contact .support-link {
    color: var(--c-blue);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.page-contact .boundary-list {
    list-style: none;
    margin: 24px 0 0;
    padding: 0;
    border-top: 1px solid var(--c-line);
}

.page-contact .boundary-list li {
    padding: 18px 0;
    border-bottom: 1px solid var(--c-line);
}

.page-contact .boundary-list strong {
    display: block;
    margin-bottom: 6px;
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--c-green-deep);
}

.page-contact .boundary-list div {
    font-size: 0.9375rem;
    line-height: 1.65;
    color: var(--c-ink);
}

/* ---------- 常见反馈流程 ---------- */
.page-contact .contact-flow {
    margin-bottom: 72px;
}

.page-contact .flow-layout {
    display: grid;
    gap: 32px;
    margin-top: 28px;
    align-items: start;
}

.page-contact .flow-steps {
    list-style: none;
    padding: 0;
    margin: 0;
}

.page-contact .flow-step {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 14px;
    padding: 20px 0;
    border-bottom: 1px solid var(--c-line);
}

.page-contact .step-num {
    font-family: var(--font-num);
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
    color: var(--c-red);
}

.page-contact .step-body h3 {
    margin: 0 0 6px;
    font-family: var(--font-display);
    font-size: 1.0625rem;
    line-height: 1.3;
}

.page-contact .step-body p {
    margin: 0;
    font-size: 0.9375rem;
    line-height: 1.65;
    color: var(--c-muted);
}

.page-contact .flow-media {
    padding: 12px;
    border: 1px solid var(--c-line);
    background: var(--c-surface);
}

/* ---------- 交通指引 ---------- */
.page-contact .contact-transport {
    margin-bottom: 72px;
}

.page-contact .transport-grid {
    display: grid;
    gap: 14px;
    margin-top: 28px;
}

.page-contact .transport-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    border: 1px solid var(--c-line);
    background: var(--c-surface);
    padding: 20px;
}

.page-contact .transport-tag {
    flex: 0 0 auto;
    font-family: var(--font-num);
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--c-green-deep);
    border: 1px solid var(--c-green);
    padding: 4px 10px;
    letter-spacing: 0.06em;
}

.page-contact .transport-item p {
    margin: 0;
    font-size: 0.9375rem;
    line-height: 1.65;
}

/* ---------- 相关入口 ---------- */
.page-contact .contact-related {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    border-top: 1px solid var(--c-line-strong);
    padding-top: 26px;
}

.page-contact .related-label {
    font-size: 0.8125rem;
    letter-spacing: 0.12em;
    color: var(--c-muted);
    margin-right: 6px;
}

.page-contact .contact-related a {
    display: inline-block;
    border: 1px solid var(--c-line-strong);
    background: var(--c-surface);
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--c-ink);
    text-decoration: none;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.page-contact .contact-related a:hover,
.page-contact .contact-related a:focus-visible {
    background: var(--c-green-deep);
    border-color: var(--c-green-deep);
    color: var(--c-white);
}

/* ---------- 桌面端栅格 ---------- */
@media (min-width: 720px) {
    .page-contact {
        padding: 0 32px 100px;
    }

    .page-contact .directory-grid {
        grid-template-areas:
            "phone mail"
            "phone address";
        grid-template-columns: 1.35fr 1fr;
        grid-auto-rows: 1fr;
        gap: 18px;
    }

    .page-contact .contact-card-phone {
        grid-area: phone;
        justify-content: center;
    }

    .page-contact .contact-card-mail {
        grid-area: mail;
    }

    .page-contact .contact-card-address {
        grid-area: address;
    }

    .page-contact .boundary-list li {
        display: grid;
        grid-template-columns: 7em 1fr;
        gap: 20px;
    }

    .page-contact .boundary-list strong {
        margin-bottom: 0;
    }
}

@media (min-width: 960px) {
    .page-contact {
        padding: 0 40px 120px;
    }

    .page-contact .boundary-layout {
        grid-template-columns: 1.05fr 1fr;
        gap: 40px;
    }

    .page-contact .flow-layout {
        grid-template-columns: 1.1fr 0.9fr;
        gap: 40px;
    }

    .page-contact .transport-grid {
        grid-template-columns: 1fr 1fr;
    }
}