.page-contact {
  --fc-gap: clamp(20px, 3.2vw, 44px);
  --fc-pad: clamp(18px, 2.6vw, 30px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 面包屑 ---------- */
.page-contact .z9-breadcrumb {
  padding-top: clamp(14px, 2.2vw, 24px);
}

/* ---------- 封面层 ---------- */
.page-contact .fc-cover {
  padding-top: clamp(14px, 2vw, 26px);
}

.page-contact .fc-cover__inner {
  display: grid;
  padding-bottom: clamp(26px, 4vw, 48px);
  border-bottom: 1px solid var(--z9-line);
}

.page-contact .fc-title {
  margin: clamp(12px, 1.6vw, 20px) 0 0;
  margin-left: -0.02em;
  max-width: 19ch;
  font-family: var(--z9-narrow);
  font-size: clamp(31px, 6.2vw, 68px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--z9-cream);
}

.page-contact .fc-lede {
  max-width: 62ch;
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  font-size: clamp(14.5px, 1.5vw, 17.5px);
  line-height: 1.9;
  color: var(--z9-mist);
}

/* ---------- 引导图 ---------- */
.page-contact .fc-channel-media {
  margin: clamp(24px, 4vw, 48px) 0 0;
}

/* ---------- 三条通道 ---------- */
.page-contact .fc-channels-section {
  margin-top: clamp(22px, 3.4vw, 38px);
}

.page-contact .fc-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--z9-line);
  border: 1px solid var(--z9-line);
}

.page-contact .fc-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 100%;
  padding: var(--fc-pad);
  background: var(--z9-panel);
  color: var(--z9-cream);
  text-decoration: none;
  transition: background 0.22s var(--z9-ease), transform 0.22s var(--z9-ease);
}

.page-contact .fc-channel::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--z9-cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.28s var(--z9-ease);
}

.page-contact .fc-channel:hover,
.page-contact .fc-channel:focus-visible {
  background: #10304A;
}

.page-contact .fc-channel:hover::before,
.page-contact .fc-channel:focus-visible::before {
  transform: scaleY(1);
}

.page-contact .fc-channel__idx {
  font-family: var(--z9-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--z9-cyan);
}

.page-contact .fc-channel__title {
  font-family: var(--z9-narrow);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.page-contact .fc-channel__desc {
  flex: 1 1 auto;
  font-size: 14px;
  line-height: 1.85;
  color: var(--z9-mist);
}

.page-contact .fc-channel__cta {
  font-family: var(--z9-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--z9-gold);
}

/* ---------- 章节骨架 ---------- */
.page-contact .fc-block {
  margin-top: clamp(44px, 7vw, 96px);
  scroll-margin-top: calc(var(--z9-header-h) + 24px);
  border-left: 2px solid transparent;
  transition: border-color 0.3s var(--z9-ease), padding-left 0.3s var(--z9-ease);
}

.page-contact .fc-block:target {
  border-left-color: var(--z9-cyan);
  padding-left: clamp(12px, 2vw, 24px);
}

.page-contact .fc-block__head {
  display: grid;
  gap: 10px;
  padding-bottom: clamp(16px, 2.4vw, 22px);
  border-bottom: 1px solid var(--z9-line);
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .fc-block__title {
  max-width: 24ch;
  margin: 0;
  font-family: var(--z9-narrow);
  font-size: clamp(22px, 3.3vw, 37px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: 0.005em;
  color: var(--z9-cream);
}

.page-contact .fc-block__sub {
  max-width: 70ch;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--z9-mist);
}

.page-contact .fc-inline-link {
  color: var(--z9-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 232, 210, 0.4);
}

.page-contact .fc-inline-link:hover,
.page-contact .fc-inline-link:focus-visible {
  border-bottom-color: var(--z9-cyan);
}

/* ---------- 两栏：清单 / 流程 ---------- */
.page-contact .fc-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--fc-gap);
}

/* ---------- 勘误材料清单 ---------- */
.page-contact .fc-checklist {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--z9-line);
  border: 1px solid var(--z9-line);
}

.page-contact .fc-check {
  padding: 15px 16px 17px;
  background: var(--z9-deep);
}

.page-contact .fc-check--tip {
  background: linear-gradient(160deg, #0C2438, #061726);
}

.page-contact .fc-check__k {
  display: block;
  margin-bottom: 8px;
  font-family: var(--z9-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--z9-cyan);
}

.page-contact .fc-check--tip .fc-check__k {
  color: var(--z9-orange);
}

.page-contact .fc-check__v {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--z9-cream);
}

/* ---------- 流程线 ---------- */
.page-contact .fc-flow {
  border-top: 1px solid var(--z9-line);
}

.page-contact .fc-flow__heading {
  margin: 0;
  padding: 14px 0 12px;
  font-family: var(--z9-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--z9-mist);
}

.page-contact .fc-flow__step {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  padding: 15px 0 16px;
  border-top: 1px solid var(--z9-line);
}

.page-contact .fc-flow__no {
  padding-top: 3px;
  font-family: var(--z9-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--z9-orange);
}

.page-contact .fc-flow__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--z9-mist);
}

.page-contact .fc-flow__text strong {
  display: block;
  margin-bottom: 3px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--z9-cream);
}

/* ---------- 记录同步清单 ---------- */
.page-contact .fc-sync {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--z9-line);
  border: 1px solid var(--z9-line);
}

.page-contact .fc-sync__cell {
  padding: 16px 17px 18px;
  background: var(--z9-panel);
}

.page-contact .fc-sync__cell--accent {
  background: linear-gradient(150deg, rgba(61, 232, 210, 0.12), var(--z9-panel) 70%);
}

.page-contact .fc-sync__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--z9-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--z9-gold);
}

.page-contact .fc-sync__cell--accent .fc-sync__label {
  color: var(--z9-cyan);
}

.page-contact .fc-sync__val {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.8;
  color: var(--z9-cream);
}

/* ---------- 合作形式 ---------- */
.page-contact .fc-coop {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-contact .fc-coop__item {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: clamp(14px, 2vw, 26px);
  padding: clamp(18px, 2.6vw, 28px) 0;
  border-top: 1px solid var(--z9-line);
}

.page-contact .fc-coop__item:last-child {
  border-bottom: 1px solid var(--z9-line);
}

.page-contact .fc-coop__no {
  font-family: var(--z9-mono);
  font-size: 20px;
  line-height: 1.1;
  color: var(--z9-gold);
}

.page-contact .fc-coop__title {
  margin: 0 0 8px;
  font-family: var(--z9-narrow);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--z9-cream);
}

.page-contact .fc-coop__text {
  margin: 0;
  max-width: 74ch;
  font-size: 14.2px;
  line-height: 1.85;
  color: var(--z9-mist);
}

/* ---------- 联系方式面板 ---------- */
.page-contact .fc-contact {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-top: clamp(44px, 7vw, 96px);
  padding: clamp(26px, 4.6vw, 62px);
  border: 1px solid var(--z9-line);
  background: linear-gradient(155deg, #0E2A42 0%, #061726 64%);
}

.page-contact .fc-contact::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--z9-gold), rgba(216, 179, 114, 0) 62%);
}

.page-contact .fc-contact__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
  filter: saturate(0.6);
}

.page-contact .fc-contact__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 46px);
}

.page-contact .fc-contact__title {
  margin: 12px 0 clamp(20px, 3vw, 34px);
  max-width: 18ch;
  font-family: var(--z9-narrow);
  font-size: clamp(24px, 3.6vw, 40px);
  font-weight: 800;
  line-height: 1.14;
  color: var(--z9-cream);
}

.page-contact .fc-contact__rows {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
}

.page-contact .fc-contact__row {
  display: grid;
  gap: 6px;
  padding-bottom: clamp(14px, 2vw, 20px);
  border-bottom: 1px solid rgba(216, 179, 114, 0.24);
}

.page-contact .fc-contact__label {
  font-family: var(--z9-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--z9-gold);
}

.page-contact .fc-line {
  display: block;
  font-family: var(--z9-mono);
  font-size: clamp(15px, 2.9vw, 30px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .fc-line--mail {
  color: var(--z9-cyan);
}

.page-contact .fc-line--tel {
  color: var(--z9-cream);
}

.page-contact .fc-contact__addr {
  display: block;
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.8;
  color: var(--z9-cream);
}

.page-contact .fc-contact__aside {
  display: grid;
  align-content: start;
  gap: 14px;
  padding-top: clamp(6px, 1.4vw, 14px);
  border-top: 1px solid rgba(216, 179, 114, 0.24);
}

.page-contact .fc-contact__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--z9-cream);
}

.page-contact .fc-contact__meta {
  margin: 0;
  font-family: var(--z9-mono);
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: var(--z9-mist);
}

/* ---------- 常用入口 ---------- */
.page-contact .fc-also {
  margin-top: clamp(34px, 5vw, 64px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--z9-line);
}

.page-contact .fc-also__title {
  margin: 0;
  font-family: var(--z9-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--z9-mist);
}

.page-contact .fc-also__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.page-contact .fc-also__list a {
  display: inline-block;
  padding-bottom: 3px;
  font-size: 14.5px;
  color: var(--z9-cream);
  text-decoration: none;
  border-bottom: 1px solid var(--z9-line);
  transition: color 0.2s var(--z9-ease), border-color 0.2s var(--z9-ease);
}

.page-contact .fc-also__list a:hover,
.page-contact .fc-also__list a:focus-visible {
  color: var(--z9-cyan);
  border-bottom-color: var(--z9-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .fc-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-contact .fc-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .fc-channel:nth-child(2) {
    transform: translateY(12px);
  }

  .page-contact .fc-channel:nth-child(2):hover,
  .page-contact .fc-channel:nth-child(2):focus-visible {
    transform: translateY(6px);
  }
}

@media (min-width: 900px) {
  .page-contact .fc-split {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }

  .page-contact .fc-contact__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
  }

  .page-contact .fc-contact__aside {
    padding-top: 0;
    padding-left: clamp(18px, 2.4vw, 32px);
    border-top: none;
    border-left: 1px solid rgba(216, 179, 114, 0.24);
  }
}

@media (min-width: 1100px) {
  .page-contact .fc-coop__item {
    grid-template-columns: 56px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fc-channel,
  .page-contact .fc-channel::before,
  .page-contact .fc-block,
  .page-contact .fc-also__list a {
    transition: none;
  }

  .page-contact .fc-channel:nth-child(2) {
    transform: none;
  }
}