.page-contact {
  --ct-ink: #0B1B33;
  --ct-hair: rgba(11, 27, 51, .16);
  --ct-hair-dark: rgba(244, 246, 249, .18);
  --ct-angle: 26px;
  background: var(--c-cool);
  color: var(--ct-ink);
}

/* ---------- 面包屑与首屏头带 ---------- */
.page-contact .tb-crumbs,
.page-contact .tb-crumbs .tb-crumbs__item {
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  color: rgba(244, 246, 249, .62);
  text-decoration: none;
}
.page-contact .tb-crumbs .tb-crumbs__item:hover {
  color: var(--c-cyan);
}
.page-contact .ct-crumbs__sep {
  margin: 0 10px;
  color: rgba(244, 246, 249, .35);
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
}

.page-contact .ct-head {
  position: relative;
  overflow: hidden;
  background: var(--c-navy);
  color: var(--c-white);
  padding: calc(var(--h-bar) + 40px) 0 clamp(88px, 12vw, 150px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 68px), 0 100%);
}
.page-contact .ct-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(244, 246, 249, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 246, 249, .055) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}
.page-contact .ct-head::after {
  content: "";
  position: absolute;
  top: -28%;
  right: -8%;
  width: 210px;
  height: 150%;
  background: var(--c-red);
  opacity: .16;
  transform: rotate(15deg);
  pointer-events: none;
}
.page-contact .ct-head > .tb-wrap {
  position: relative;
  z-index: 1;
}
.page-contact .ct-head__title {
  margin: 16px 0 22px;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(38px, 7.6vw, 84px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--c-white);
  max-width: 15ch;
}
.page-contact .ct-head__title br {
  display: none;
}
@media (min-width: 720px) {
  .page-contact .ct-head__title br { display: inline; }
}
.page-contact .ct-head .tb-lead {
  max-width: 640px;
  color: rgba(244, 246, 249, .82);
}
.page-contact .ct-head__quick {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: 30px 0 0;
  padding: 0;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  letter-spacing: .05em;
  color: rgba(244, 246, 249, .66);
}
.page-contact .ct-head__quick li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.page-contact .ct-head__quick li::before {
  content: "";
  flex: none;
  width: 18px;
  height: 3px;
  background: var(--c-red);
}
.page-contact .ct-head__quick .tb-mono {
  color: var(--c-cyan);
}

/* ---------- 分流区 ---------- */
.page-contact .ct-lanes {
  padding: clamp(40px, 6vw, 76px) 0 clamp(40px, 6vw, 76px);
}
.page-contact .ct-lanes__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}
.page-contact .ct-lanes__intro {
  margin: 14px 0 30px;
  max-width: 46ch;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--c-steel);
}

.page-contact .ct-card-list {
  display: grid;
  gap: 16px;
}
.page-contact .ct-card {
  position: relative;
  padding: 26px 24px 22px;
  background: var(--c-white);
  border: 2px solid var(--ct-ink);
  transition: transform var(--dur) var(--ease);
  isolation: isolate;
}
.page-contact .ct-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(135deg, var(--c-red) 0%, var(--c-red-deep) 100%);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.page-contact .ct-card::after {
  content: "";
  position: absolute;
  top: -2px;
  right: -2px;
  width: var(--ct-angle);
  height: var(--ct-angle);
  background: var(--ct-ink);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  transition: background var(--dur) var(--ease);
}
.page-contact .ct-card:hover {
  transform: translate(-2px, -2px);
}
.page-contact .ct-card:hover::before {
  opacity: 1;
}
.page-contact .ct-card:hover::after {
  background: var(--c-navy);
}
.page-contact .ct-card:hover .ct-card__title,
.page-contact .ct-card:hover .ct-card__who,
.page-contact .ct-card:hover .ct-card__how {
  color: var(--c-white);
}
.page-contact .ct-card:hover .ct-card__key {
  color: var(--c-cyan);
}
.page-contact .ct-card:hover .ct-card__num {
  color: rgba(255, 255, 255, .72);
}
.page-contact .ct-card:hover .ct-card__link {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-contact .ct-card__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
  padding-right: 24px;
}
.page-contact .ct-card__num {
  font-size: var(--fs-md);
  font-weight: 700;
  line-height: 1;
  color: var(--c-red);
  letter-spacing: -.02em;
  transition: color var(--dur) var(--ease);
}
.page-contact .ct-card__title {
  margin: 0;
  color: var(--ct-ink);
  transition: color var(--dur) var(--ease);
}
.page-contact .ct-card__who {
  margin: 0 0 12px;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--ct-ink);
  transition: color var(--dur) var(--ease);
}
.page-contact .ct-card__how {
  margin: 0 0 8px;
  font-size: var(--fs-xs);
  line-height: 1.75;
  color: var(--c-steel);
  transition: color var(--dur) var(--ease);
}
.page-contact .ct-card__key {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--f-mono);
  letter-spacing: .08em;
  color: var(--c-red);
  transition: color var(--dur) var(--ease);
}
.page-contact .ct-card__link {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  letter-spacing: .06em;
  color: var(--c-red);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .ct-card__link:hover {
  color: var(--c-red-deep);
}

/* ---------- 图片容器 ---------- */
.page-contact .ct-shot {
  position: relative;
  margin: 0;
  background: var(--c-navy-2);
  border: 2px solid var(--ct-ink);
  overflow: hidden;
}
.page-contact .ct-shot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .ct-shot__cap {
  margin: 0;
  padding: 12px 16px;
  font-size: var(--fs-xs);
  line-height: 1.7;
  color: rgba(244, 246, 249, .72);
  background: var(--c-navy-2);
  border-top: 2px solid var(--c-red);
}
.page-contact .ct-lanes__fig {
  margin-top: 34px;
}

/* ---------- 联系方式面板 ---------- */
.page-contact .ct-panel {
  position: relative;
  padding: 34px 26px 30px;
  background: var(--c-navy);
  color: var(--c-white);
  border: 2px solid var(--c-navy);
  overflow: hidden;
}
.page-contact .ct-panel__checker {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 12px;
  background-image: var(--checker);
  background-size: var(--checker-size);
}
.page-contact .ct-panel__kicker {
  margin: 8px 0 8px;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-cyan);
}
.page-contact .ct-panel__title {
  margin: 0 0 8px;
  font-size: clamp(26px, 5vw, 34px);
  color: var(--c-white);
}
.page-contact .ct-panel__item {
  display: grid;
  gap: 7px;
  padding: 20px 0;
  border-bottom: 1px solid var(--ct-hair-dark);
}
.page-contact .ct-panel__label {
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  color: var(--c-steel);
}
.page-contact .ct-panel__value {
  font-size: clamp(15px, 4.2vw, 20px);
  font-weight: 500;
  color: var(--c-white);
  word-break: break-all;
  font-variant-numeric: tabular-nums;
}
.page-contact .ct-panel__addr {
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--c-white);
}
.page-contact .ct-copy {
  justify-self: start;
  margin-top: 6px;
  padding: 7px 16px;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  letter-spacing: .08em;
  color: var(--c-white);
  background: transparent;
  border: 2px solid var(--c-cyan);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-contact .ct-copy:hover {
  background: var(--c-cyan);
  color: var(--c-navy);
}
.page-contact .ct-copy__done {
  display: none;
}
.page-contact .ct-copy[data-copied="true"] {
  background: var(--c-cyan);
  color: var(--c-navy);
}
.page-contact .ct-copy[data-copied="true"] .ct-copy__idle {
  display: none;
}
.page-contact .ct-copy[data-copied="true"] .ct-copy__done {
  display: inline;
}
.page-contact .ct-panel__note {
  margin: 20px 0 0;
  font-size: var(--fs-xs);
  line-height: 1.8;
  color: rgba(244, 246, 249, .68);
}
.page-contact .ct-panel__jump {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  letter-spacing: .08em;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
}
.page-contact .ct-panel__jump::after {
  content: "→";
}
.page-contact .ct-panel__jump:hover {
  color: var(--c-white);
}

/* ---------- 纠错流程 ---------- */
.page-contact .ct-flow {
  position: relative;
  background: var(--c-white);
  border-top: 2px solid var(--ct-ink);
  padding: clamp(48px, 7vw, 88px) 0;
}
.page-contact .ct-flow__head {
  max-width: 760px;
}
.page-contact .ct-flow__head .tb-lead {
  color: var(--c-steel);
}
.page-contact .ct-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-red);
}
.page-contact .ct-kicker::before {
  content: "";
  width: 22px;
  height: 3px;
  background: var(--c-red);
}
.page-contact .ct-steps {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}
.page-contact .ct-step {
  position: relative;
  padding-top: 22px;
}
.page-contact .ct-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--ct-ink) 0 58%, var(--c-red) 58% 100%);
}
.page-contact .ct-step__num {
  display: inline-block;
  font-size: var(--fs-lg);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--c-red);
}
.page-contact .ct-step__title {
  margin: 10px 0 10px;
  color: var(--ct-ink);
}
.page-contact .ct-step__text {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--c-steel);
}
.page-contact .ct-flow__tail {
  margin: 40px 0 0;
  padding-top: 22px;
  border-top: 2px solid var(--ct-ink);
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--ct-ink);
}
.page-contact .ct-flow__tail a {
  color: var(--c-red);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}
.page-contact .ct-flow__tail a:hover {
  color: var(--c-red-deep);
}

/* ---------- 可展开内容组 ---------- */
.page-contact .tb-acc {
  margin-top: 16px;
  border-top: 1px solid var(--ct-hair);
}
.page-contact .tb-acc__title {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 0;
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  letter-spacing: .08em;
  color: var(--c-red);
  cursor: pointer;
  list-style: none;
}
.page-contact .tb-acc__title::-webkit-details-marker {
  display: none;
}
.page-contact .tb-acc__title::before {
  content: "+";
  flex: none;
  width: 14px;
  font-size: 15px;
  line-height: 1;
}
.page-contact .tb-acc[open] > .tb-acc__title::before {
  content: "–";
}
.page-contact .tb-acc__body {
  padding: 0 0 14px 23px;
  font-size: var(--fs-xs);
  line-height: 1.8;
  color: var(--c-steel);
}
.page-contact .tb-acc__body p {
  margin: 0;
}

/* ---------- 合作方向 ---------- */
.page-contact .ct-coop {
  background: var(--c-cool);
  border-top: 2px solid var(--ct-ink);
  padding: clamp(48px, 7vw, 88px) 0;
}
.page-contact .ct-coop__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}
.page-contact .ct-coop__lead {
  margin: 16px 0 0;
  max-width: 44ch;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--c-steel);
}
.page-contact .ct-coop__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .ct-coop__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 18px;
  padding: 22px 0;
  border-top: 2px solid var(--ct-ink);
}
.page-contact .ct-coop__item:last-child {
  border-bottom: 2px solid var(--ct-ink);
}
.page-contact .ct-coop__idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--c-white);
  background: var(--c-red);
}
.page-contact .ct-coop__body h3 {
  margin: 4px 0 10px;
  color: var(--ct-ink);
}
.page-contact .ct-coop__body p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--c-steel);
  max-width: 62ch;
}

/* ---------- 到访与邮寄 ---------- */
.page-contact .ct-visit {
  padding: clamp(48px, 7vw, 88px) 0;
  background: var(--c-white);
  border-top: 2px solid var(--ct-ink);
}
.page-contact .ct-visit__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
}
.page-contact .ct-addr {
  display: grid;
  gap: 8px;
  margin: 22px 0 20px;
  padding: 20px 22px;
  background: var(--c-cool);
  border-left: 6px solid var(--c-red);
  font-style: normal;
}
.page-contact .ct-addr__label {
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  color: var(--c-steel);
}
.page-contact .ct-addr__value {
  font-size: var(--fs-md);
  line-height: 1.6;
  font-weight: 600;
  color: var(--ct-ink);
}
.page-contact .ct-visit__p {
  margin: 0;
  max-width: 60ch;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--c-steel);
}
.page-contact .ct-visit__acc {
  max-width: 62ch;
}

/* ---------- 响应与跟进 ---------- */
.page-contact .ct-follow {
  position: relative;
  overflow: hidden;
  background: var(--c-navy);
  color: var(--c-white);
  padding: clamp(56px, 8vw, 96px) 0;
}
.page-contact .ct-follow::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 14px;
  background-image: var(--checker);
  background-size: var(--checker-size);
}
.page-contact .ct-follow::after {
  content: "";
  position: absolute;
  bottom: -30%;
  right: -6%;
  width: 190px;
  height: 140%;
  background: var(--c-navy-2);
  transform: rotate(13deg);
  pointer-events: none;
}
.page-contact .ct-follow__inner {
  position: relative;
  z-index: 1;
}
.page-contact .ct-follow__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-top: 36px;
}
.page-contact .ct-follow__col {
  padding-top: 18px;
  border-top: 3px solid var(--c-red);
}
.page-contact .ct-follow__col h3 {
  margin: 0 0 10px;
}
.page-contact .ct-follow__col p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: rgba(244, 246, 249, .74);
}
.page-contact .ct-follow__col a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}
.page-contact .ct-follow__col a:hover {
  color: var(--c-white);
}
.page-contact .ct-follow__tip {
  margin: 40px 0 0;
  padding: 20px 22px;
  font-size: var(--fs-xs);
  line-height: 1.85;
  color: rgba(244, 246, 249, .78);
  background: var(--c-navy-2);
  border-left: 6px solid var(--c-cyan);
}

/* ---------- 焦点可见性 ---------- */
.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-card {
    padding: 28px 30px 24px;
  }
  .page-contact .ct-visit__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: center;
  }
  .page-contact .ct-coop__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }
  .page-contact .ct-follow__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
  }
}

@media (min-width: 1020px) {
  .page-contact .ct-lanes__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(36px, 4.5vw, 72px);
    align-items: start;
  }
  .page-contact .ct-panel {
    position: sticky;
    top: calc(var(--h-bar) + 24px);
  }
  .page-contact .ct-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
  }
  .page-contact .ct-step {
    padding-top: 24px;
  }
}

@media (min-width: 1280px) {
  .page-contact .ct-panel {
    padding: 40px 34px 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-card::before,
  .page-contact .ct-card::after,
  .page-contact .ct-copy {
    transition: none;
  }
}
<<<END>>>