.page-contact {
  --guest-gap: clamp(20px, 3vw, 44px);
  --lane-rule: rgba(21, 19, 17, .18);
  --gilt-rule: rgba(201, 162, 74, .45);
  padding-bottom: 0;
}

/* ---------- 首屏会客 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(18px, 3.4vw, 36px);
}

.page-contact .hero-grid {
  display: grid;
  gap: var(--guest-gap);
  align-items: start;
}

.page-contact .hero-copy .display-title {
  margin: 14px 0 20px;
  line-height: 1.24;
}

.page-contact .hero-copy .lede {
  max-width: 46ch;
  margin: 0;
}

.page-contact .hero-tags {
  margin-top: 24px;
  gap: 10px;
}

.page-contact .hero-plate {
  position: relative;
  background: var(--ink-deep);
  color: var(--paper);
  border: var(--edge-gilt);
  border-radius: var(--radius-m);
  padding: 26px 24px 24px;
  box-shadow: 0 20px 40px -30px rgba(21, 19, 17, .8), inset 0 0 0 1px rgba(231, 201, 122, .12);
}

.page-contact .hero-plate::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(201, 162, 74, .22);
  border-radius: 6px;
  pointer-events: none;
}

.page-contact .plate-seal {
  display: inline-block;
  background: var(--cinnabar);
  color: var(--cream);
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: .28em;
  padding: 5px 8px 5px 11px;
  border-radius: 2px;
}

.page-contact .plate-title {
  margin: 16px 0 14px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--gilt-light);
  letter-spacing: .02em;
}

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

.page-contact .plate-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(247, 241, 227, .9);
}

.page-contact .plate-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--celadon-mist);
}

.page-contact .plate-actions {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .plate-actions .btn {
  flex: 1 1 auto;
  text-align: center;
}

/* ---------- 区块小标题组 ---------- */
.page-contact .coop-head {
  display: grid;
  gap: 16px;
}

.page-contact .coop-head__intro {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-deep);
}

/* ---------- 合作方向错落卡 ---------- */
.page-contact .lane-grid {
  display: grid;
  gap: clamp(26px, 3.6vw, 40px);
  margin-top: clamp(26px, 4vw, 44px);
}

.page-contact .lane {
  border-top: 3px solid var(--ink);
  padding-top: 18px;
  transition: border-color .18s ease, transform .18s ease;
}

.page-contact .lane:hover {
  border-top-color: var(--gilt);
}

.page-contact .lane--warm {
  background: var(--paper-warm);
  border-top-color: var(--cinnabar);
  border-radius: 0 0 var(--radius-s) var(--radius-s);
  padding: 20px 20px 22px;
}

.page-contact .lane__num {
  margin: 0;
  font-family: var(--font-num);
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--cinnabar);
}

.page-contact .lane__title {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.2vw, 25px);
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-contact .lane__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-deep);
}

.page-contact .lane__tags {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 联系渠道 （深色） ---------- */
.page-contact .eyebrow--onink {
  color: var(--gilt-light);
}

.page-contact .section-title--onink {
  color: var(--paper);
}

.page-contact .channel-grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 48px);
  align-items: center;
}

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

.page-contact .channel-figure .frame {
  border: 1px solid var(--gilt-rule);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink);
}

.page-contact .channel-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .channel-figure .figure-caption {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(232, 223, 204, .72);
}

.page-contact .channel-lead {
  margin: 14px 0 26px;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(247, 241, 227, .86);
}

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

.page-contact .chan-item {
  display: grid;
  gap: 6px;
  padding: 16px 0 18px;
  border-top: 1px solid rgba(201, 162, 74, .28);
}

.page-contact .chan-item:last-child {
  border-bottom: 1px solid rgba(201, 162, 74, .28);
}

.page-contact .chan-label {
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--gilt);
}

.page-contact .chan-value {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-all;
  text-decoration-color: rgba(201, 162, 74, .55);
  text-underline-offset: 5px;
}

.page-contact a.chan-value:hover {
  color: var(--gilt-light);
}

.page-contact .chan-value--plain {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  color: rgba(247, 241, 227, .94);
}

.page-contact .chan-note {
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(232, 223, 204, .7);
}

.page-contact .chan-item .copy-btn {
  justify-self: start;
  margin-top: 4px;
  background: transparent;
  border-color: rgba(201, 162, 74, .55);
  color: var(--gilt-light);
}

.page-contact .chan-item .copy-btn:hover {
  background: rgba(201, 162, 74, .14);
  border-color: var(--gilt-light);
}

.page-contact .chan-item .copy-status {
  justify-self: start;
  font-size: 12.5px;
  color: var(--celadon-mist);
}

/* ---------- 合作流程 ---------- */
.page-contact .flow-layout {
  margin-top: clamp(26px, 4vw, 44px);
  display: grid;
  gap: clamp(26px, 3.4vw, 42px);
  align-items: start;
}

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

.page-contact .flow-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
}

.page-contact .flow-node {
  position: relative;
  display: flex;
  justify-content: center;
  padding-top: 4px;
}

.page-contact .flow-node span {
  position: relative;
  z-index: 1;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 2px solid var(--gilt);
  background: var(--paper);
  font-family: var(--font-num);
  font-size: 17px;
  color: var(--cinnabar-dark);
}

.page-contact .flow-node::after {
  content: "";
  position: absolute;
  top: 46px;
  bottom: -4px;
  left: 50%;
  width: 1.5px;
  transform: translateX(-50%);
  background: linear-gradient(to bottom, var(--gilt), var(--celadon-mist));
}

.page-contact .flow-item:last-child .flow-node::after {
  display: none;
}

.page-contact .flow-body {
  padding-bottom: 22px;
}

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

.page-contact .flow-figure .frame {
  border: 1px solid var(--lane-rule);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--paper-warm);
}

.page-contact .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .flow-figure .figure-caption {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--neutral);
}

/* ---------- 折叠结构共用 ---------- */
.page-contact .fold {
  border-bottom: 1px solid var(--lane-rule);
  padding: 4px 0 12px;
}

.page-contact .fold summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  cursor: pointer;
  list-style: none;
  padding: 6px 0;
}

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

.page-contact .fold__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.1vw, 23px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-contact .fold summary::after {
  content: "＋";
  flex: none;
  font-size: 17px;
  color: var(--celadon);
  transition: color .18s ease;
}

.page-contact .fold[open] summary::after {
  content: "－";
  color: var(--cinnabar);
}

.page-contact .fold:hover summary::after {
  color: var(--gilt);
}

.page-contact .fold p {
  margin: 10px 0 2px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-deep);
}

.page-contact .fold p a {
  color: var(--cinnabar-dark);
}

/* ---------- 适合对象 ---------- */
.page-contact .aud-lead {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-deep);
}

.page-contact .aud-list {
  margin-top: clamp(24px, 3.4vw, 38px);
  display: grid;
}

.page-contact .aud-item {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-top: 1px solid rgba(21, 19, 17, .2);
}

.page-contact .aud-item:last-child {
  border-bottom: 1px solid rgba(21, 19, 17, .2);
}

.page-contact .aud-name {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 22px);
  font-weight: 800;
  color: var(--ink);
}

.page-contact .aud-name::before {
  content: "";
  flex: none;
  width: 10px;
  height: 10px;
  background: var(--cinnabar);
  border-radius: 1px;
}

.page-contact .aud-text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-deep);
}

/* ---------- 问答 ---------- */
.page-contact .qa-grid {
  margin-top: clamp(24px, 3.4vw, 38px);
  display: grid;
  gap: 0;
}

/* ---------- 邮件入口 ---------- */
.page-contact .reach-wrap {
  display: flex;
  justify-content: center;
}

.page-contact .reach-card {
  width: 100%;
  max-width: 760px;
  background: var(--paper);
  border: 1px solid rgba(21, 19, 17, .2);
  border-radius: var(--radius-m);
  padding: clamp(24px, 4vw, 44px);
  box-shadow: 9px 9px 0 rgba(201, 162, 74, .3), var(--shadow-paper);
}

.page-contact .reach-text {
  margin: 14px 0 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-deep);
}

.page-contact .reach-mail {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(19px, 3.2vw, 30px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--cinnabar-dark);
  word-break: break-all;
  text-decoration-color: rgba(200, 52, 43, .45);
  text-underline-offset: 6px;
}

.page-contact .reach-mail:hover {
  color: var(--cinnabar);
}

.page-contact .reach-actions {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-contact .reach-actions .btn--primary {
  min-width: 148px;
  text-align: center;
}

.page-contact .reach-actions .copy-btn {
  border-color: rgba(21, 19, 17, .3);
  color: var(--ink);
}

.page-contact .reach-actions .copy-btn:hover {
  border-color: var(--gilt);
  background: rgba(201, 162, 74, .12);
}

.page-contact .reach-actions .copy-status {
  font-size: 12.5px;
  color: var(--celadon);
}

.page-contact .reach-note {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--neutral);
}

.page-contact .reach-note a {
  color: var(--cinnabar-dark);
  text-decoration-color: rgba(200, 52, 43, .4);
  text-underline-offset: 4px;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-contact .qa-grid {
    grid-template-columns: 1fr 1fr;
    column-gap: var(--gap);
  }
}

@media (min-width: 860px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(28px, 3.6vw, 52px);
  }

  .page-contact .coop-head {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: end;
    gap: clamp(20px, 3vw, 46px);
  }

  .page-contact .lane-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gap);
    row-gap: clamp(32px, 4vw, 56px);
  }

  .page-contact .lane {
    grid-column: span 6;
  }

  .page-contact .lane:nth-child(1) {
    grid-column: 1 / 7;
  }

  .page-contact .lane:nth-child(2) {
    grid-column: 8 / 13;
    margin-top: 46px;
  }

  .page-contact .lane:nth-child(3) {
    grid-column: 2 / 7;
  }

  .page-contact .lane:nth-child(4) {
    grid-column: 8 / 13;
    margin-top: 34px;
  }

  .page-contact .channel-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .page-contact .aud-item {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
    align-items: baseline;
    gap: 24px;
  }
}

@media (min-width: 1000px) {
  .page-contact .flow-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-contact .flow-figure {
    position: sticky;
    top: 104px;
  }

  .page-contact .chan-item {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 16px;
  }

  .page-contact .chan-label {
    grid-column: 1 / -1;
  }

  .page-contact .chan-note {
    grid-column: 1 / -1;
  }
}

@media (max-width: 779px) {
  .page-contact {
    padding-bottom: 84px;
  }

  .page-contact .lane--warm {
    padding: 18px 16px 20px;
  }

  .page-contact .reach-card {
    box-shadow: 6px 6px 0 rgba(201, 162, 74, .3), var(--shadow-paper);
  }

  .page-contact .flow-item {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 10px;
  }

  .page-contact .flow-node span {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }

  .page-contact .flow-node::after {
    top: 40px;
  }
}
<<<END>>>