.page-contact {
  --ct-cut: 18px;
}

.page-contact [id] {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-contact .breadcrumbs {
  margin-bottom: clamp(20px, 3vw, 32px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding: clamp(24px, 4vw, 40px) 0 clamp(44px, 7vw, 88px);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: end;
}

.page-contact .ct-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(34px, 6vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-wrap: balance;
}

.page-contact .ct-hero__lede {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--text);
}

.page-contact .ct-hero__actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.page-contact .ct-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - var(--ct-cut)) 0, 100% var(--ct-cut), 100% 100%, var(--ct-cut) 100%, 0 calc(100% - var(--ct-cut)));
}

.page-contact .ct-hero__figure figcaption {
  margin-top: 12px;
  padding-left: 14px;
  border-left: 3px solid var(--orange);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--text);
  opacity: .78;
}

/* ---------- 通用区块头 ---------- */
.page-contact .ct-head {
  max-width: 62ch;
}

.page-contact .ct-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 3.8vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .ct-head p:not(.eyebrow) {
  margin: 14px 0 0;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 三类合作 ---------- */
.page-contact .ct-coop {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
  margin-top: clamp(26px, 4vw, 44px);
}

.page-contact .ct-coop__tabs ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-tab {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 14px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, .6);
  border-left: 4px solid transparent;
  text-decoration: none;
  color: var(--ink);
  transition: background .2s var(--ease), border-left-color .2s var(--ease);
}

.page-contact .ct-tab:hover,
.page-contact .ct-tab:focus-visible {
  background: #fff;
  border-left-color: var(--orange);
}

.page-contact .ct-coop:has(#ct-data:target) .ct-tab[href="#ct-data"],
.page-contact .ct-coop:has(#ct-venue:target) .ct-tab[href="#ct-venue"],
.page-contact .ct-coop:has(#ct-column:target) .ct-tab[href="#ct-column"] {
  background: #fff;
  border-left-color: var(--orange);
}

.page-contact .ct-tab__no {
  grid-row: span 2;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange-ink);
}

.page-contact .ct-tab__name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.page-contact .ct-tab__hint {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text);
  opacity: .74;
}

.page-contact .ct-coop__panels:has(:target) .ct-panel:not(:target) {
  display: none;
}

.page-contact .ct-panel {
  background: #fff;
  padding: clamp(20px, 3vw, 34px);
  clip-path: polygon(0 0, calc(100% - var(--ct-cut)) 0, 100% var(--ct-cut), 100% 100%, var(--ct-cut) 100%, 0 calc(100% - var(--ct-cut)));
}

.page-contact .ct-panel h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(21px, 2.6vw, 27px);
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .ct-panel__lede {
  margin: 12px 0 0;
  line-height: 1.8;
  color: var(--text);
}

.page-contact .ct-facts {
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-facts > div {
  display: grid;
  gap: 2px 16px;
  grid-template-columns: minmax(0, 1fr);
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .ct-facts dt {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--jade-700);
}

.page-contact .ct-facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .ct-steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
}

.page-contact .ct-steps li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 12px 14px;
  background: var(--ink);
  color: #D9E7E2;
  font-size: 13.5px;
  line-height: 1.6;
}

.page-contact .ct-steps__no {
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--orange);
}

.page-contact .ct-panel__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  padding-bottom: 2px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 15px;
  color: var(--orange-ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

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

/* ---------- 评审材料 ---------- */
.page-contact .ct-materials {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-contact .ct-material {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 18px 20px;
  background: var(--mist);
  border-top: 3px solid var(--jade-600);
}

.page-contact .ct-material__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange-ink);
}

.page-contact .ct-material h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .ct-material p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .ct-materials__note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--jade-300);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

/* ---------- 联系渠道（深墨蓝区） ---------- */
.page-contact .ct-channels {
  position: relative;
  overflow: hidden;
  padding: clamp(40px, 6vw, 80px) 0;
  background: var(--ink);
  color: #E7F0EC;
}

.page-contact .ct-channels::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--orange) 0 18%, var(--jade-600) 18% 100%);
}

.page-contact .ct-channels__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}

.page-contact .ct-channels h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: #fff;
}

.page-contact .ct-channels__lede {
  margin: 14px 0 0;
  max-width: 52ch;
  line-height: 1.8;
  color: rgba(231, 240, 236, .82);
}

.page-contact .ct-channel-list {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
}

.page-contact .ct-channel-list > li {
  padding: 18px 0;
  border-top: 1px solid rgba(127, 191, 169, .26);
}

.page-contact .ct-channel-list > li:last-child {
  border-bottom: 1px solid rgba(127, 191, 169, .26);
}

.page-contact .ct-channel__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--jade-300);
}

.page-contact .ct-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(17px, 2.3vw, 22px);
  letter-spacing: .01em;
  color: #fff;
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__value--text {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.6;
}

.page-contact .ct-channel__desc {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(231, 240, 236, .72);
}

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

.page-contact .ct-channels__figure img {
  display: block;
  width: 100%;
  height: auto;
  opacity: .94;
  clip-path: polygon(0 0, calc(100% - var(--ct-cut)) 0, 100% var(--ct-cut), 100% 100%, var(--ct-cut) 100%, 0 calc(100% - var(--ct-cut)));
}

/* ---------- 回复节奏 ---------- */
.page-contact .ct-reply {
  padding-top: clamp(36px, 5vw, 64px);
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-contact .ct-reply__band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  padding: 1px;
  background: linear-gradient(90deg, var(--jade-600), var(--orange));
}

.page-contact .ct-reply__cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 20px 24px;
  background: var(--ink);
}

.page-contact .ct-reply__num {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: #fff;
}

.page-contact .ct-reply__num span {
  margin-left: 6px;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--jade-300);
}

.page-contact .ct-reply__label {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(234, 243, 239, .82);
}

.page-contact .ct-reply__urgent {
  margin-top: clamp(26px, 4vw, 40px);
  padding: clamp(20px, 3vw, 32px);
  max-width: 78ch;
  background: var(--mist);
  border-left: 4px solid var(--orange);
}

.page-contact .ct-reply__urgent h2 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 25px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .ct-reply__urgent p {
  margin: 0 0 18px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 寄送与到访 ---------- */
.page-contact .ct-visit__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-contact .ct-visit__intro h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .ct-visit__intro p {
  margin: 14px 0 0;
  line-height: 1.8;
  color: var(--text);
}

.page-contact .ct-fold {
  background: #fff;
  border-left: 3px solid var(--line);
  transition: border-left-color .2s var(--ease);
}

.page-contact .ct-fold + .ct-fold {
  margin-top: 10px;
}

.page-contact .ct-fold[open] {
  border-left-color: var(--orange);
}

.page-contact .ct-fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 16px;
  color: var(--ink);
}

.page-contact .ct-fold summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-fold summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--orange-ink);
}

.page-contact .ct-fold[open] summary::after {
  content: "−";
}

.page-contact .ct-fold p {
  margin: 0;
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .ct-facts > div {
    grid-template-columns: 88px minmax(0, 1fr);
  }
}

@media (min-width: 640px) {
  .page-contact .ct-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-contact .ct-materials {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-contact .ct-reply__band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .ct-coop {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-contact .ct-coop__tabs {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-contact .ct-visit__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 940px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 1080px) {
  .page-contact .ct-materials {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-contact .ct-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-tab,
  .page-contact .ct-fold {
    transition: none;
  }
}
<<<END>>>