/* ===== 联系我们 / contact ===== */
.page-contact {
  --cc-ink-soft: #4A6472;
  --cc-hair: rgba(28, 93, 122, 0.34);
  background-color: var(--deep);
  color: var(--ice);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* --- 封面 --- */
.page-contact .contact-cover {
  position: relative;
  padding: calc(var(--header-h) + clamp(30px, 5vw, 62px)) 0 clamp(38px, 6vw, 72px);
  border-bottom: 1px solid var(--line-soft);
  background-image:
    repeating-linear-gradient(90deg, var(--line-faint) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, var(--line-faint) 0 1px, transparent 1px 96px),
    radial-gradient(120% 100% at 88% 0%, rgba(255, 107, 26, 0.18), transparent 60%),
    linear-gradient(180deg, var(--deep-2), var(--deep));
}

.page-contact .contact-cover::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(360px, 62%);
  height: 3px;
  background: linear-gradient(90deg, var(--accent) 0 58%, var(--caution) 58% 82%, transparent 82%);
}

.page-contact .contact-cover .breadcrumb {
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-contact .contact-cover__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-contact .contact-cover__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(34px, 8vw, 68px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--white);
  text-wrap: balance;
}

.page-contact .contact-cover__title em {
  font-style: normal;
  color: var(--accent);
}

.page-contact .contact-cover__lede {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.75;
  color: var(--steel);
}

/* --- 侧边速览面板 --- */
.page-contact .contact-dock {
  padding: 22px 20px 20px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--accent);
}

.page-contact .contact-dock__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--caution);
}

.page-contact .contact-dock__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .contact-dock__item a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 12px;
  text-decoration: none;
  color: var(--ice);
  border-left: 2px solid transparent;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .contact-dock__item a:hover,
.page-contact .contact-dock__item a:focus-visible {
  border-left-color: var(--accent);
  background: var(--accent-soft);
  color: var(--white);
}

.page-contact .contact-dock__key {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
}

.page-contact .contact-dock__val {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
}

.page-contact .contact-dock__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  font-size: 13px;
  line-height: 1.68;
  color: var(--steel);
}

/* --- 通用章节标题 --- */
.page-contact .contact-h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(25px, 4.4vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-contact .contact-lede {
  margin: 16px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--steel);
}

/* --- 联系渠道 --- */
.page-contact .channel-grid {
  margin-top: clamp(26px, 4vw, 44px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .channel-stack {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(158deg, var(--panel) 0%, var(--deep-2) 100%);
  border: 1px solid var(--line-soft);
}

.page-contact .channel-card::before,
.page-contact .channel-card::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 24px;
  pointer-events: none;
}

.page-contact .channel-card::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--line);
  border-left: 2px solid var(--line);
}

.page-contact .channel-card::after {
  right: -1px;
  bottom: -1px;
  border-right: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}

.page-contact .channel-card--lead::before,
.page-contact .channel-card--lead::after {
  border-color: var(--accent);
}

.page-contact .channel-card__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.page-contact .channel-card__label {
  margin: 0;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(18px, 2.4vw, 25px);
  line-height: 1.36;
  color: var(--white);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .channel-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .channel-card__text--strong {
  color: var(--ice);
}

.page-contact .channel-card__figure {
  margin: 8px 0 0;
  border: 1px solid var(--line-faint);
}

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

/* --- 浅色阅读分区 --- */
.page-contact .contact-paper {
  background: var(--paper);
  color: var(--ink);
}

.page-contact .contact-paper .contact-h2 {
  color: var(--ink);
}

.page-contact .contact-paper .contact-lede {
  color: var(--cc-ink-soft);
}

.page-contact .contact-paper .eyebrow {
  color: var(--accent);
}

.page-contact .fb-check {
  margin-top: clamp(24px, 3.5vw, 38px);
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-contact .fb-check__item {
  padding: 16px 18px;
  background: var(--white);
  border-left: 3px solid var(--pitch);
}

.page-contact .fb-check__item:nth-child(even) {
  border-left-color: var(--accent);
}

.page-contact .fb-check__key {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .fb-check__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--cc-ink-soft);
}

.page-contact .fb-steps {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .fb-step {
  display: grid;
  grid-template-columns: 82px 1fr;
  align-items: start;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid rgba(10, 34, 51, 0.14);
}

.page-contact .fb-step:last-child {
  border-bottom: 1px solid rgba(10, 34, 51, 0.14);
}

.page-contact .fb-step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  padding-top: 4px;
}

.page-contact .fb-step__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink);
}

/* --- 合作咨询 --- */
.page-contact .coop-grid {
  margin-top: clamp(26px, 4vw, 44px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .coop-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 24px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--accent);
}

.page-contact .coop-card:nth-child(2) {
  border-top-color: var(--caution);
}

.page-contact .coop-card:nth-child(3) {
  border-top-color: var(--pitch);
}

.page-contact .coop-card__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-contact .coop-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--white);
}

.page-contact .coop-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel);
}

.page-contact .coop-card__meta {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--pitch);
}

/* --- 办公地址 --- */
.page-contact .addr-grid {
  margin-top: clamp(26px, 4vw, 44px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
}

.page-contact .addr-figure {
  margin: 0;
  border: 1px solid var(--line-soft);
}

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

.page-contact .addr-panel {
  padding: 24px 22px;
  background: var(--deep-2);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--caution);
}

.page-contact .addr-panel__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--caution);
}

.page-contact .addr-panel__value {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(17px, 2.1vw, 21px);
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.page-contact .addr-panel__text {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .addr-panel__meta {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line-soft);
  display: grid;
  gap: 12px;
}

.page-contact .addr-panel__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.page-contact .addr-panel__meta dd {
  margin: 5px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ice);
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* --- 常见问题 --- */
.page-contact .qa-grid {
  margin-top: clamp(26px, 4vw, 44px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .qa-item {
  padding: 20px 20px 22px;
  background: var(--panel);
  border: 1px solid var(--line-faint);
  border-left: 2px solid var(--caution);
}

.page-contact .qa-item__q {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.page-contact .qa-item__a {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel);
}

/* --- 下一步 --- */
.page-contact .next-links {
  margin: clamp(24px, 3.5vw, 38px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .next-link {
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
  padding: 18px 18px 20px;
  background: rgba(11, 46, 74, 0.62);
  border: 1px solid var(--line-faint);
  text-decoration: none;
  color: var(--ice);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-contact .next-link:hover,
.page-contact .next-link:focus-visible {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.page-contact .next-link__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.page-contact .next-link__label {
  font-family: var(--font-head);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
}

/* --- 响应式 --- */
@media (min-width: 700px) {
  .page-contact .fb-check {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .qa-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-cover__grid {
    grid-template-columns: minmax(0, 7fr) minmax(280px, 5fr);
    align-items: end;
  }

  .page-contact .channel-grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 20px;
    align-items: start;
  }

  .page-contact .channel-stack {
    gap: 20px;
  }

  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .addr-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(26px, 4vw, 52px);
  }
}

@media (min-width: 1180px) {
  .page-contact .next-links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .fb-step {
    grid-template-columns: 110px 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-dock__item a,
  .page-contact .next-link {
    transition: none;
  }

  .page-contact .next-link:hover,
  .page-contact .next-link:focus-visible {
    transform: none;
  }
}