.page-contact {
  background: var(--mist);
  color: var(--navy);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  background: var(--navy);
  color: var(--mist);
  border-bottom: var(--edge) solid var(--navy-deep);
  overflow: hidden;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  right: -22%;
  bottom: -58%;
  width: min(560px, 78vw);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: repeating-conic-gradient(from 0deg, var(--brass) 0deg 0.5deg, transparent 0.5deg 6deg);
  -webkit-mask: radial-gradient(circle, transparent 61%, #000 62% 79%, transparent 80%);
  mask: radial-gradient(circle, transparent 61%, #000 62% 79%, transparent 80%);
  opacity: 0.42;
  pointer-events: none;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.7;
}

.page-contact .ct-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  padding-block: clamp(34px, 6vw, 76px) clamp(40px, 7vw, 88px);
}

.page-contact .ct-hero .breadcrumb {
  color: var(--steel);
  font-size: 13px;
  letter-spacing: 0.04em;
  margin-bottom: 20px;
}

.page-contact .ct-hero .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .ct-hero .breadcrumb a:hover,
.page-contact .ct-hero .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .ct-hero .breadcrumb__sep {
  margin: 0 8px;
  color: var(--steel);
}

.page-contact .ct-hero__eyebrow {
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-contact .ct-hero__title {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: clamp(38px, 8.4vw, 76px);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: 0.02em;
  margin: 0 0 20px;
  max-width: 15ch;
}

.page-contact .ct-hero__lead {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(245, 247, 249, 0.82);
  margin: 0 0 26px;
  max-width: 46ch;
}

.page-contact .ct-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  border-top: 1px solid rgba(138, 148, 160, 0.38);
  padding-top: 20px;
}

.page-contact .ct-hero__facts li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
}

.page-contact .ct-hero__fact-num {
  color: var(--orange);
  font-size: 14px;
}

.page-contact .ct-hero__fact-text {
  color: rgba(245, 247, 249, 0.72);
}

.page-contact .ct-hero__figure {
  margin: 0;
}

.page-contact .ct-hero__figure .figure__frame {
  border-color: var(--steel);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.45);
}

.page-contact .ct-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

/* ---------- 章节通用 ---------- */
.page-contact .section {
  padding-block: clamp(46px, 6.5vw, 88px);
}

.page-contact .section__num {
  color: transparent;
  -webkit-text-stroke: 1px var(--steel);
  letter-spacing: 0.1em;
}

.page-contact .section__lead {
  color: var(--ink-soft);
  max-width: 62ch;
  margin-top: 14px;
}

/* ---------- 01 三条联系路径 ---------- */
.page-contact .ct-spread {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(26px, 4vw, 44px);
}

.page-contact .ct-spread__left {
  background: var(--navy);
  color: var(--mist);
  border-top: 6px solid var(--orange);
  box-shadow: var(--shadow-hard);
  padding: clamp(24px, 4vw, 40px) clamp(20px, 3.6vw, 36px);
}

.page-contact .ct-spread__kicker {
  margin: 0 0 20px;
  color: var(--brass);
  letter-spacing: 0.14em;
  font-size: 12px;
}

.page-contact .ct-lines {
  margin: 0;
}

.page-contact .ct-lines__row {
  padding: 18px 0 20px;
  border-bottom: 1px solid rgba(138, 148, 160, 0.32);
}

.page-contact .ct-lines__row:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-contact .ct-lines__key {
  display: block;
  color: var(--steel);
  font-size: 12px;
  letter-spacing: 0.12em;
  margin-bottom: 10px;
}

.page-contact .ct-lines__val {
  margin: 0;
  line-height: 1.4;
}

.page-contact .ct-lines__val--mail {
  font-size: clamp(14px, 3vw, 19px);
}

.page-contact .ct-lines__val--tel {
  font-size: clamp(26px, 7.4vw, 40px);
}

.page-contact .ct-lines__val--addr {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.8vw, 18px);
  font-weight: 700;
  color: var(--mist);
}

.page-contact .ct-copy {
  appearance: none;
  -webkit-appearance: none;
  display: inline;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  padding: 0 0 2px;
  margin: 0;
  font: inherit;
  text-align: left;
  color: var(--cyan);
  word-break: break-all;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-copy:hover,
.page-contact .ct-copy:focus-visible {
  color: var(--white);
  border-bottom-color: var(--cyan);
  outline: none;
}

.page-contact .ct-copy--num {
  color: var(--orange);
  letter-spacing: 0.02em;
}

.page-contact .ct-copy--num:hover,
.page-contact .ct-copy--num:focus-visible {
  color: var(--white);
  border-bottom-color: var(--orange);
}

.page-contact .ct-spread__hint {
  margin: 22px 0 0;
  color: var(--steel);
  font-size: 12px;
}

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

.page-contact .ct-card {
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .ct-card:hover,
.page-contact .ct-card:focus-within {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-card .board__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--ink-soft);
}

.page-contact .ct-card .board__body p:last-child {
  margin-bottom: 0;
}

.page-contact .ct-card__link a {
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--cyan);
  font-weight: 700;
}

.page-contact .ct-card__link a:hover,
.page-contact .ct-card__link a:focus-visible {
  color: var(--navy);
  border-bottom-color: var(--navy);
}

/* ---------- 02 问题分类 ---------- */
.page-contact .ct-router__wrap {
  position: relative;
  margin-top: clamp(26px, 4vw, 44px);
}

.page-contact .ct-router__input {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-contact .ct-router__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.page-contact .ct-router__tabs label {
  cursor: pointer;
  display: inline-block;
  padding: 11px 18px;
  border: 2px solid var(--line-steel-strong);
  background: var(--white);
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 700;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-router__tabs label:hover {
  border-color: var(--cyan-deep);
  color: var(--navy);
}

.page-contact #ct-topic-a:checked ~ .ct-router__tabs label[for="ct-topic-a"],
.page-contact #ct-topic-b:checked ~ .ct-router__tabs label[for="ct-topic-b"],
.page-contact #ct-topic-c:checked ~ .ct-router__tabs label[for="ct-topic-c"] {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--mist);
}

.page-contact .ct-router__input:focus-visible ~ .ct-router__tabs label[for="ct-topic-a"],
.page-contact .ct-router__input:focus-visible ~ .ct-router__tabs label[for="ct-topic-b"],
.page-contact .ct-router__input:focus-visible ~ .ct-router__tabs label[for="ct-topic-c"] {
  outline: 2px dashed var(--cyan-deep);
  outline-offset: 2px;
}

.page-contact .ct-router__lanes {
  display: grid;
  gap: 16px;
}

.page-contact .ct-lane {
  border: var(--edge) solid var(--navy);
  border-top: 6px solid var(--steel);
  background: var(--white);
  padding: 22px 20px 24px;
  opacity: 0.62;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease), border-top-color var(--dur) var(--ease);
}

.page-contact .ct-lane__badge {
  display: inline-block;
  margin: 0 0 14px;
  padding: 3px 10px;
  background: var(--cyan);
  color: var(--navy);
  font-size: 11px;
  letter-spacing: 0.1em;
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.page-contact .ct-lane__title {
  font-family: var(--font-body);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 10px;
  color: var(--navy);
}

.page-contact .ct-lane__desc {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--ink-soft);
}

.page-contact .ct-lane__link {
  margin: 0;
}

.page-contact .ct-lane__link a {
  color: var(--cyan-deep);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--cyan);
}

.page-contact .ct-lane__link a:hover,
.page-contact .ct-lane__link a:focus-visible {
  color: var(--navy);
  border-bottom-color: var(--navy);
}

.page-contact #ct-topic-a:checked ~ .ct-router__lanes .ct-lane[data-lane="notice"],
.page-contact #ct-topic-b:checked ~ .ct-router__lanes .ct-lane[data-lane="mail"],
.page-contact #ct-topic-c:checked ~ .ct-router__lanes .ct-lane[data-lane="coop"] {
  opacity: 1;
  border-top-color: var(--cyan);
  box-shadow: var(--shadow-hard);
  transform: translateY(-4px);
}

.page-contact #ct-topic-a:checked ~ .ct-router__lanes .ct-lane[data-lane="notice"] .ct-lane__badge,
.page-contact #ct-topic-b:checked ~ .ct-router__lanes .ct-lane[data-lane="mail"] .ct-lane__badge,
.page-contact #ct-topic-c:checked ~ .ct-router__lanes .ct-lane[data-lane="coop"] .ct-lane__badge {
  opacity: 1;
}

/* ---------- 03 处理流程 ---------- */
.page-contact .ct-steps {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .ct-step {
  position: relative;
  padding: 2px 0 30px 28px;
  border-left: 1px solid var(--line-steel-strong);
}

.page-contact .ct-step::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--mist);
  border: 2px solid var(--steel);
}

.page-contact .ct-step__num {
  display: block;
  color: var(--orange);
  font-size: 13px;
  letter-spacing: 0.14em;
  margin-bottom: 6px;
}

.page-contact .ct-step__title {
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--navy);
}

.page-contact .ct-step__desc {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.74;
  color: var(--ink-soft);
}

.page-contact .ct-step__tip {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13px;
  color: var(--cyan-deep);
  border-left: 2px solid var(--cyan);
  padding-left: 10px;
  transition: max-height 200ms var(--ease), opacity 200ms var(--ease), margin 200ms var(--ease);
}

.page-contact .ct-step:hover .ct-step__tip,
.page-contact .ct-step:focus-within .ct-step__tip {
  max-height: 80px;
  opacity: 1;
  margin-top: 4px;
}

.page-contact .ct-flow__figure {
  margin: clamp(30px, 4.5vw, 52px) 0 0;
}

.page-contact .ct-flow__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.page-contact .ct-flow__figure .figure__caption {
  color: var(--ink-soft);
  font-size: 13px;
}

.page-contact .ct-flow__figure .figure__caption a {
  color: var(--cyan-deep);
  border-bottom: 1px solid var(--cyan);
  text-decoration: none;
}

/* ---------- 04 合作 ---------- */
.page-contact .ct-coop__grid {
  margin-top: clamp(26px, 4vw, 44px);
}

.page-contact .ct-coop__card .board__body {
  padding-top: 4px;
}

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

.page-contact .ct-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-contact .ct-list li:last-child {
  margin-bottom: 0;
}

.page-contact .ct-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

.page-contact .ct-coop__note {
  margin-top: 26px;
  border: var(--edge) solid var(--navy);
  border-left: 8px solid var(--orange);
  background: var(--white);
  padding: clamp(20px, 3vw, 30px);
  box-shadow: 6px 6px 0 rgba(7, 23, 38, 0.14);
}

.page-contact .ct-coop__note-title {
  margin: 0 0 14px;
  color: var(--navy);
  letter-spacing: 0.08em;
  font-size: 13px;
}

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

.page-contact .ct-coop__note-list li {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--navy);
  background: var(--mist);
  border: 1px solid var(--line-steel-strong);
  padding: 7px 13px;
}

.page-contact .ct-coop__note-link {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-contact .ct-coop__note-link a {
  color: var(--cyan-deep);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--cyan);
}

.page-contact .ct-coop__note-link a:hover,
.page-contact .ct-coop__note-link a:focus-visible {
  color: var(--navy);
  border-bottom-color: var(--navy);
}

/* ---------- 05 到访与公告 ---------- */
.page-contact .ct-visit {
  background: var(--indigo);
  color: var(--mist);
  border-top: var(--edge) solid var(--navy-deep);
  border-bottom: var(--edge) solid var(--navy-deep);
}

.page-contact .ct-visit .section__title {
  color: var(--mist);
}

.page-contact .ct-visit .section__num {
  -webkit-text-stroke: 1px rgba(138, 148, 160, 0.8);
}

.page-contact .ct-visit__grid {
  margin-top: clamp(24px, 4vw, 40px);
}

.page-contact .ct-visit__block {
  border-top: 3px solid var(--steel);
  padding-top: 22px;
}

.page-contact .ct-visit__block--addr {
  border-top-color: var(--cyan);
}

.page-contact .ct-visit__block--notice {
  border-top-color: var(--orange);
}

.page-contact .ct-visit__head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 14px;
  color: var(--mist);
}

.page-contact .ct-compass {
  position: relative;
  display: inline-block;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1.5px solid var(--brass);
  flex: none;
}

.page-contact .ct-compass::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 8px;
  margin: -7px 0 0 -1px;
  background: var(--orange);
  transform-origin: 50% 100%;
  transform: rotate(38deg);
}

.page-contact .ct-visit__block p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(245, 247, 249, 0.82);
}

.page-contact .ct-visit__meta {
  color: var(--steel);
  margin: 0;
}

.page-contact .ct-visit__links {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.page-contact .ct-visit__links a {
  color: var(--cyan);
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .ct-visit__links a:hover,
.page-contact .ct-visit__links a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--cyan);
}

/* ---------- 页尾曲线 ---------- */
.page-contact .ct-water {
  background: var(--mist);
  padding-block: clamp(30px, 5vw, 64px) clamp(26px, 4vw, 54px);
}

.page-contact .ct-water__svg {
  display: block;
  width: 100%;
  height: clamp(70px, 10vw, 140px);
}

.page-contact .ct-water__river {
  fill: none;
  stroke: var(--brass);
  stroke-width: 1.5;
  opacity: 0.75;
}

.page-contact .ct-water__river--thin {
  stroke: var(--steel);
  stroke-width: 1;
  opacity: 0.55;
}

.page-contact .ct-water__bridge {
  fill: none;
  stroke: var(--brass);
  stroke-width: 1.5;
  opacity: 0.85;
}

.page-contact .ct-water__deck {
  fill: none;
  stroke: var(--steel);
  stroke-width: 1;
  opacity: 0.7;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .ct-router__lanes {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .ct-spread__right {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__inner {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }

  .page-contact .ct-spread {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .page-contact .ct-spread__right {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .page-contact .ct-steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }

  .page-contact .ct-step {
    padding: 34px 24px 0 0;
    border-left: 0;
    border-top: 2px solid var(--line-steel-strong);
  }

  .page-contact .ct-step::before {
    left: 0;
    top: -7px;
    background: var(--cyan);
    border-color: var(--navy);
  }

  .page-contact .ct-step:last-child {
    padding-right: 0;
  }
}

@media (min-width: 1080px) {
  .page-contact .ct-spread__right {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-lane,
  .page-contact .ct-copy,
  .page-contact .ct-step__tip,
  .page-contact .ct-router__tabs label {
    transition: none;
  }

  .page-contact .ct-card:hover,
  .page-contact .ct-card:focus-within,
  .page-contact #ct-topic-a:checked ~ .ct-router__lanes .ct-lane[data-lane="notice"],
  .page-contact #ct-topic-b:checked ~ .ct-router__lanes .ct-lane[data-lane="mail"],
  .page-contact #ct-topic-c:checked ~ .ct-router__lanes .ct-lane[data-lane="coop"] {
    transform: none;
  }
}