.page-contact {
  color: var(--ob-text);
  overflow-x: hidden;
}

.page-contact .fc-crumb-wrap {
  padding-top: 24px;
}

/* ---------- 首屏 ---------- */
.page-contact .fc-hero {
  display: grid;
  gap: 28px;
  padding-block: 24px 40px;
  border-bottom: 1px solid var(--ob-line);
}

.page-contact .fc-hero__main {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.page-contact .fc-hero__main .ob-eyebrow {
  margin: 0;
}

.page-contact .fc-lead {
  margin: 0;
  max-width: 58ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--ob-text-2);
}

.page-contact .fc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.page-contact .fc-hero__aside {
  border: 1px solid var(--ob-line);
  background: var(--ob-panel);
  padding: 18px 18px 20px;
  box-shadow: 6px 6px 0 0 var(--ob-deep);
  min-width: 0;
}

.page-contact .fc-aside__cap {
  margin: 0 0 4px;
  font-family: var(--ob-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ob-amber);
}

.page-contact .fc-ledger__row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 0;
  border-top: 1px solid var(--ob-line-soft);
}

.page-contact .fc-ledger__row:first-child {
  border-top: 0;
  padding-top: 8px;
}

.page-contact .fc-ledger__key {
  font-family: var(--ob-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ob-muted);
}

.page-contact .fc-ledger__line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.page-contact .fc-ledger__val {
  font-family: var(--ob-mono);
  font-weight: 700;
  font-size: clamp(15px, 4vw, 17px);
  letter-spacing: 0.01em;
  color: var(--ob-accent);
  word-break: break-all;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--ob-t), color var(--ob-t);
}

.page-contact a.fc-ledger__val:hover {
  border-bottom-color: var(--ob-accent);
}

.page-contact .fc-ledger__val--plain {
  color: var(--ob-amber-soft);
}

.page-contact .ob-copy {
  align-self: flex-start;
  background: transparent;
  border: 1px solid var(--ob-line);
  border-radius: var(--ob-radius);
  color: var(--ob-accent-soft);
  font-family: var(--ob-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 6px 12px;
  cursor: pointer;
  transition: background-color var(--ob-t), border-color var(--ob-t), color var(--ob-t);
}

.page-contact .ob-copy:hover,
.page-contact .ob-copy:focus-visible {
  background: var(--ob-accent);
  border-color: var(--ob-accent);
  color: var(--ob-deep);
}

/* ---------- 横幅 ---------- */
.page-contact .fc-banner {
  margin: 0;
}

.page-contact .ob-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .fc-banner img {
  aspect-ratio: 16 / 6;
}

.page-contact .fc-figure img {
  aspect-ratio: 3 / 2;
}

.page-contact .ob-media__cap {
  font-family: var(--ob-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ob-muted);
  padding-top: 8px;
}

/* ---------- 通用章节 ---------- */
.page-contact .fc-section {
  padding-block: 48px;
  border-top: 1px solid var(--ob-line-soft);
  min-width: 0;
}

.page-contact .fc-sec__head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.page-contact .fc-sec__num {
  font-family: var(--ob-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ob-amber);
}

.page-contact .fc-sec__head .ob-title-l,
.page-contact .fc-sec__head .ob-title-m {
  margin: 0;
}

.page-contact .fc-sec__sub {
  margin: 0;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ob-text-2);
}

/* ---------- 三条通道 ---------- */
.page-contact .fc-channel {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-top: 1px solid var(--ob-line);
}

.page-contact .fc-channel:first-child {
  border-top-color: var(--ob-accent);
}

.page-contact .fc-channel__index {
  font-family: var(--ob-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ob-amber);
}

.page-contact .fc-channel__main {
  min-width: 0;
}

.page-contact .fc-channel__title {
  margin: 0 0 6px;
  font-family: var(--ob-display);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.35;
  color: var(--ob-text);
}

.page-contact .fc-channel__body {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ob-text-2);
}

.page-contact .fc-channel__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 邮件五要素 ---------- */
.page-contact .fc-split {
  display: grid;
  gap: 28px;
  min-width: 0;
}

.page-contact .fc-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
}

.page-contact .fc-step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--ob-line-soft);
}

.page-contact .fc-step:first-child {
  border-top: 1px solid var(--ob-line);
}

.page-contact .fc-step__num {
  font-family: var(--ob-mono);
  font-size: 15px;
  font-weight: 700;
  text-align: right;
  color: var(--ob-amber);
  line-height: 1.9;
}

.page-contact .fc-step__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ob-text-2);
}

.page-contact .fc-step__text strong {
  color: var(--ob-text);
  font-weight: 600;
}

.page-contact .fc-figure {
  margin: 0;
}

/* ---------- 值守时段 ---------- */
.page-contact .fc-hours {
  border: 1px solid var(--ob-line);
  background: var(--ob-panel);
  padding: 20px;
}

.page-contact .fc-hours__track {
  position: relative;
  height: 12px;
  background: var(--ob-deep);
  border: 1px solid var(--ob-line);
  overflow: hidden;
}

.page-contact .fc-hours__fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 50%;
  background: linear-gradient(90deg, var(--ob-accent), var(--ob-amber));
}

.page-contact .fc-hours__ticks {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-family: var(--ob-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ob-muted);
}

.page-contact .fc-hours__note {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ob-text-2);
}

.page-contact .fc-hours__list {
  display: grid;
  gap: 0;
  margin-top: 24px;
}

.page-contact .fc-hours__item {
  padding: 18px 0;
  border-top: 1px solid var(--ob-line-soft);
}

.page-contact .fc-hours__title {
  margin: 0 0 6px;
  font-family: var(--ob-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ob-accent-soft);
}

.page-contact .fc-hours__item p {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ob-text-2);
}

/* ---------- 站点信息 ---------- */
.page-contact .fc-site {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ob-line);
  background: var(--ob-panel-2);
  padding: 22px 20px;
}

.page-contact .fc-site::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(43, 245, 192, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 245, 192, 0.06) 1px, transparent 1px);
  background-size: 32px 32px;
}

.page-contact .fc-site__list {
  position: relative;
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .fc-site__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ob-line-soft);
}

.page-contact .fc-site__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .fc-site__row dt {
  font-family: var(--ob-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ob-muted);
}

.page-contact .fc-site__row dd {
  margin: 0;
  font-family: var(--ob-mono);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ob-text);
  word-break: break-word;
}

.page-contact .fc-site__row dd a {
  color: var(--ob-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--ob-t);
}

.page-contact .fc-site__row dd a:hover,
.page-contact .fc-site__row dd a:focus-visible {
  border-bottom-color: var(--ob-accent);
}

/* ---------- 表单 ---------- */
.page-contact .fc-form {
  display: grid;
  gap: 18px;
  border: 1px solid var(--ob-line);
  background: var(--ob-panel);
  padding: 20px 18px 24px;
}

.page-contact .fc-field {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.page-contact .fc-field label {
  font-family: var(--ob-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ob-muted);
}

.page-contact .fc-field__req {
  color: var(--ob-amber);
}

.page-contact .fc-field input,
.page-contact .fc-field select,
.page-contact .fc-field textarea {
  width: 100%;
  min-height: 46px;
  padding: 11px 13px;
  background: var(--ob-deep);
  border: 1px solid var(--ob-line);
  border-radius: var(--ob-radius);
  color: var(--ob-text);
  font-family: var(--ob-body);
  font-size: 16px;
  line-height: 1.6;
  transition: border-color var(--ob-t), box-shadow var(--ob-t);
}

.page-contact .fc-field textarea {
  min-height: 132px;
  resize: vertical;
}

.page-contact .fc-field select option {
  background: var(--ob-panel);
  color: var(--ob-text);
}

.page-contact .fc-field input::placeholder,
.page-contact .fc-field textarea::placeholder {
  color: var(--ob-muted);
}

.page-contact .fc-field input:focus,
.page-contact .fc-field select:focus,
.page-contact .fc-field textarea:focus {
  outline: none;
  border-color: var(--ob-accent);
  box-shadow: 0 0 0 2px rgba(43, 245, 192, 0.28);
}

.page-contact .fc-field input:invalid:not(:placeholder-shown),
.page-contact .fc-field textarea:invalid:not(:placeholder-shown) {
  border-color: var(--ob-alert);
}

.page-contact .fc-form__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-top: 6px;
  border-top: 1px solid var(--ob-line-soft);
}

.page-contact .fc-form__note {
  flex: 1 1 100%;
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ob-muted);
}

/* ---------- 延伸入口 ---------- */
.page-contact .fc-links {
  padding-bottom: 64px;
}

.page-contact .fc-links .ob-title-m {
  margin: 0 0 16px;
}

.page-contact .fc-links__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ob-line);
}

.page-contact .fc-links__list li {
  border-bottom: 1px solid var(--ob-line-soft);
}

.page-contact .fc-links__list a {
  display: block;
  padding: 14px 0 14px 20px;
  position: relative;
  color: var(--ob-text-2);
  text-decoration: none;
  font-size: 16px;
  transition: color var(--ob-t), padding-left var(--ob-t);
}

.page-contact .fc-links__list a::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--ob-accent);
  font-family: var(--ob-mono);
  font-size: 13px;
}

.page-contact .fc-links__list a:hover,
.page-contact .fc-links__list a:focus-visible {
  color: var(--ob-accent);
  padding-left: 26px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-contact .fc-channel {
    grid-template-columns: 64px 1fr 190px;
    align-items: start;
    gap: 24px;
  }

  .page-contact .fc-channel__meta {
    justify-content: flex-end;
  }

  .page-contact .fc-site__row {
    grid-template-columns: 140px 1fr;
    align-items: baseline;
    gap: 20px;
  }

  .page-contact .fc-form {
    grid-template-columns: 1fr 1fr;
    padding: 26px 26px 30px;
    gap: 20px;
  }

  .page-contact .fc-field--full {
    grid-column: 1 / -1;
  }

  .page-contact .fc-hours__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-contact .fc-hours__item {
    border-top: 1px solid var(--ob-line);
    padding-top: 16px;
  }

  .page-contact .fc-links__list {
    grid-template-columns: repeat(2, 1fr);
    column-gap: 40px;
  }
}

@media (min-width: 960px) {
  .page-contact .fc-hero {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
    align-items: start;
    padding-block: 36px 64px;
  }

  .page-contact .fc-hero__aside {
    order: -1;
  }

  .page-contact .fc-split {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: start;
  }

  .page-contact .fc-section {
    padding-block: 64px;
  }

  .page-contact .fc-sec__head {
    margin-bottom: 32px;
  }

  .page-contact .fc-site {
    padding: 28px 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 0.01ms !important;
  }

  .page-contact .fc-links__list a:hover,
  .page-contact .fc-links__list a:focus-visible {
    padding-left: 20px;
  }
}