.page-contact {
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-contact .breadcrumbs {
  padding-top: clamp(14px, 2vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  border-bottom: 1px solid var(--line);
  padding: clamp(24px, 4vw, 44px) 0 clamp(32px, 5vw, 64px);
}

.page-contact .contact-hero__signal {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .55;
  pointer-events: none;
}

.page-contact .contact-hero__signal img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(102deg, var(--ink) 8%, rgba(6, 19, 14, .92) 42%, rgba(6, 19, 14, .58) 74%, rgba(6, 19, 14, .26) 100%);
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
}

.page-contact .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-contact .contact-hero__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 62px);
  line-height: 1.04;
  letter-spacing: .01em;
  color: var(--paper);
  max-width: 16ch;
}

.page-contact .contact-hero__lede {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .contact-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-contact .contact-hero__panel {
  background: rgba(13, 36, 26, .84);
  border: 1px solid var(--line);
  border-left: 2px solid var(--mint);
  padding: clamp(14px, 2vw, 22px);
}

.page-contact .quick-row {
  padding: 12px 0;
  border-top: 1px solid rgba(30, 91, 68, .65);
}

.page-contact .quick-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .quick-row:last-child {
  padding-bottom: 0;
}

.page-contact .quick-row__key {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mute);
}

.page-contact .quick-row__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.5vw, 17px);
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .quick-row__note {
  margin: 5px 0 0;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--mute);
}

/* ---------- 章节骨架 ---------- */
.page-contact .section {
  padding: clamp(32px, 5vw, 64px) 0;
  border-top: 1px solid rgba(30, 91, 68, .5);
}

.page-contact .section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-contact .section-num {
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.4vw, 15px);
  letter-spacing: .08em;
  color: var(--orange);
  flex: 0 0 auto;
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(20px, 3vw, 32px);
  line-height: 1.15;
  color: var(--paper);
}

/* ---------- 01 渠道 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: rgba(30, 91, 68, .5);
  border: 1px solid rgba(30, 91, 68, .5);
}

.page-contact .channel-card {
  background: var(--ink);
  padding: clamp(18px, 2.4vw, 26px);
  border-left: 2px solid transparent;
  transition: border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-left-color: var(--mint);
  background: var(--panel);
}

.page-contact .channel-card__tag {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mute);
}

.page-contact .channel-card__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  color: var(--paper);
}

.page-contact .channel-card__value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--mint);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__desc {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .channel-card__label {
  margin: 0;
  padding-top: 11px;
  border-top: 1px solid rgba(30, 91, 68, .6);
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--mute);
}

/* ---------- 02 服务时间 ---------- */
.page-contact .timing__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .timing__clock {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(46px, 11vw, 104px);
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--mint);
}

.page-contact .timing__dash {
  color: var(--orange);
  padding: 0 .04em;
}

.page-contact .timing__caption {
  margin: 10px 0 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mute);
}

.page-contact .timing__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .timing__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .timing__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 8px;
  height: 2px;
  background: var(--orange);
}

.page-contact .timing__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .timing__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ---------- 03 问题类型 ---------- */
.page-contact .case-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .case-card {
  position: relative;
  background: var(--panel);
  border: 1px solid rgba(30, 91, 68, .7);
  padding: clamp(16px, 2vw, 22px) clamp(16px, 2vw, 22px) clamp(16px, 2vw, 22px) clamp(40px, 5vw, 52px);
  transition: border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-contact .case-card:hover {
  border-color: var(--mint);
  background: var(--panel-2);
}

.page-contact .case-card__num {
  position: absolute;
  left: clamp(12px, 1.6vw, 18px);
  top: clamp(15px, 2vw, 21px);
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--orange);
}

.page-contact .case-card__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .case-card p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .case-card .case-card__to {
  color: var(--mute);
  font-size: 13.5px;
  margin-bottom: 8px;
}

.page-contact .case-card__link {
  display: inline-block;
  font-size: 13px;
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 245, 181, .45);
  padding-bottom: 1px;
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

.page-contact .case-card__link:hover,
.page-contact .case-card__link:focus-visible {
  border-bottom-color: var(--mint);
  color: var(--paper);
}

/* ---------- 04 邮件模板 ---------- */
.page-contact .templates__lede {
  margin: 0 0 20px;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .mail-tpl {
  background: var(--ink-2);
  border: 1px solid rgba(30, 91, 68, .7);
  border-left: 2px solid var(--mint);
  margin-bottom: 12px;
}

.page-contact .mail-tpl__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  transition: background-color .16s var(--ease);
}

.page-contact .mail-tpl__summary::-webkit-details-marker {
  display: none;
}

.page-contact .mail-tpl__summary:hover {
  background: var(--panel);
}

.page-contact .mail-tpl__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--orange);
  flex: 0 0 auto;
}

.page-contact .mail-tpl__name {
  flex: 1 1 auto;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  color: var(--paper);
}

.page-contact .mail-tpl__chev {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--mint);
  border-bottom: 2px solid var(--mint);
  transform: rotate(45deg);
  transition: transform .18s var(--ease);
}

.page-contact .mail-tpl[open] .mail-tpl__chev {
  transform: rotate(-135deg);
}

.page-contact .mail-tpl__body {
  padding: 0 16px 16px;
}

.page-contact .mail-tpl__code {
  margin: 0;
  padding: 16px;
  background: var(--ink);
  border: 1px solid rgba(30, 91, 68, .6);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.85;
  color: var(--text);
  white-space: pre-wrap;
  overflow-x: auto;
}

/* ---------- 05 地址与备案 ---------- */
.page-contact .where-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: rgba(30, 91, 68, .5);
  border: 1px solid rgba(30, 91, 68, .5);
  margin-bottom: 18px;
}

.page-contact .where-item {
  background: var(--ink);
  padding: 16px clamp(14px, 2vw, 20px);
  transition: background-color .16s var(--ease);
}

.page-contact .where-item:hover {
  background: var(--panel);
}

.page-contact .where-item__key {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mute);
}

.page-contact .where-item__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .where__note {
  margin: 0 0 10px;
  padding-left: 12px;
  border-left: 2px solid rgba(30, 91, 68, .9);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mute);
}

.page-contact .where__link {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 245, 181, .45);
}

.page-contact .where__link:hover,
.page-contact .where__link:focus-visible {
  border-bottom-color: var(--mint);
  color: var(--paper);
}

/* ---------- 收尾 ---------- */
.page-contact .cta {
  border-top: 1px solid rgba(30, 91, 68, .5);
}

.page-contact .cta__inner {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  background: linear-gradient(100deg, rgba(13, 36, 26, .96), rgba(6, 19, 14, .92));
}

.page-contact .cta__inner::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--mint), var(--orange));
}

.page-contact .cta__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.2;
  color: var(--paper);
}

.page-contact .cta__text {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .where-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
    align-items: start;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .timing__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(240px, .75fr);
    align-items: start;
  }

  .page-contact .where-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-hero__title {
    font-size: clamp(44px, 4.6vw, 62px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .case-card,
  .page-contact .where-item,
  .page-contact .mail-tpl__summary,
  .page-contact .mail-tpl__chev,
  .page-contact .case-card__link,
  .page-contact .where__link {
    transition: none;
  }
}