.page-contact {
  --contact-band-pad: clamp(52px, 8vw, 92px);
  --contact-line: 1px solid var(--grid);
  background: var(--jade-white);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-contact a {
  color: var(--red-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
}

.page-contact a:hover {
  color: var(--red);
}

.page-contact .breadcrumb-list {
  font-size: var(--step--2);
  color: var(--gold-deep);
}

/* 首屏 */
.page-contact .contact-hero {
  padding-top: calc(var(--header-h) + clamp(20px, 5vw, 52px));
  padding-bottom: clamp(40px, 6vw, 72px);
  background: linear-gradient(180deg, var(--paper) 0%, var(--jade-white) 100%);
  border-bottom: var(--contact-line);
}

.page-contact .hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(20px, 4vw, 36px);
}

.page-contact h1 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(30px, 6vw, 60px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  max-width: 18em;
}

.page-contact .hero-lead {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  color: var(--brown);
}

.page-contact .eyebrow {
  color: var(--gold-deep);
  font-size: var(--step--2);
  letter-spacing: 0.12em;
  margin: 0 0 12px;
  display: inline-block;
  padding-left: 26px;
  position: relative;
}

.page-contact .eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 18px;
  height: 1px;
  background: var(--gold);
}

.page-contact .quick-grid {
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
  margin-top: clamp(22px, 4vw, 30px);
}

.page-contact .quick-cell {
  background: var(--paper);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  border-left: 2px solid var(--gold-light);
}

.page-contact .quick-label {
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  color: var(--gold-deep);
}

.page-contact .quick-val {
  font-family: var(--mono);
  font-size: clamp(14px, 2.4vw, 19px);
  letter-spacing: 0.01em;
  color: var(--ink);
  word-break: break-all;
}

.page-contact .copy-btn {
  font-family: var(--sans);
  font-size: var(--step--2);
  line-height: 1;
  padding: 7px 14px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink);
  border-radius: 2px;
  cursor: pointer;
  transition: background 180ms ease-out, color 180ms ease-out, border-color 180ms ease-out;
}

.page-contact .copy-btn:hover {
  background: var(--ink);
  color: var(--jade-white);
}

.page-contact .copy-btn[data-copied="true"] {
  color: var(--jade-white);
  background: var(--jade);
  border-color: var(--jade);
}

.page-contact .hero-figure {
  align-self: end;
}

.page-contact .media-frame {
  margin: 0;
  border: 1px solid var(--ink);
  background: var(--paper);
}

.page-contact .media-frame-inner {
  overflow: hidden;
}

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

/* 卷轴带 */
.page-contact .band {
  padding-block: var(--contact-band-pad);
  border-top: 1px solid var(--gold);
}

.page-contact .band-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: start;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact .band-num {
  font-family: var(--mono);
  font-size: clamp(30px, 6.5vw, 64px);
  line-height: 0.86;
  letter-spacing: 0.02em;
  color: var(--gold-deep);
  grid-row: 1;
}

.page-contact .band-head h2 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(23px, 4vw, 36px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}

.page-contact .band-desc {
  margin: 0;
  max-width: 46em;
  font-size: 14px;
  color: var(--brown);
}

/* 渠道卡 */
.page-contact .channel-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-contact .channel-card {
  background: var(--paper);
  padding: clamp(20px, 3vw, 26px) clamp(18px, 2.6vw, 24px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  transition: background 200ms ease-out;
}

.page-contact .channel-card:hover {
  background: var(--jade-white);
}

.page-contact .channel-card--primary {
  border-top: 3px solid var(--red);
}

.page-contact .channel-rank {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
  border: 1px solid var(--gold);
  padding: 3px 8px;
  border-radius: 2px;
}

.page-contact .channel-card--primary .channel-rank {
  color: var(--jade-white);
  background: var(--red);
  border-color: var(--red);
}

.page-contact .channel-card h3 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 21px;
  margin: 0;
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 13.5px;
  color: var(--brown);
}

.page-contact .channel-addr {
  font-family: var(--mono);
  font-size: clamp(13px, 2.1vw, 16px);
  line-height: 1.6;
  color: var(--ink);
  margin: 0;
  word-break: break-all;
}

.page-contact .channel-fit {
  list-style: none;
  margin: 4px 0 0;
  padding: 12px 0 0;
  border-top: 1px dashed var(--grid);
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: var(--brown);
}

.page-contact .channel-fit li::before {
  content: "▸";
  color: var(--gold-deep);
  margin-right: 7px;
}

/* 材料清单 */
.page-contact .prepare-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-contact .material-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--contact-line);
}

.page-contact .material-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 2px 12px;
  padding: 16px 0;
  border-bottom: var(--contact-line);
}

.page-contact .material-num {
  font-family: var(--mono);
  font-size: var(--step--2);
  letter-spacing: 0.08em;
  color: var(--gold-deep);
  padding-top: 4px;
}

.page-contact .material-item h3 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 16px;
  margin: 0;
}

.page-contact .material-item p {
  grid-column: 2;
  margin: 4px 0 0;
  font-size: 13.5px;
  color: var(--brown);
}

.page-contact .prepare-warn {
  margin: 22px 0 0;
  padding: 12px 16px;
  background: var(--paper);
  border-left: 3px solid var(--red);
  font-size: 13.5px;
  color: var(--brown);
}

/* 邮件模板 */
.page-contact .mail-panel {
  background: var(--brown);
  color: var(--jade-white);
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--ink);
  align-self: start;
}

.page-contact .mail-panel h3 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 19px;
  margin: 0 0 6px;
  color: var(--gold-light);
}

.page-contact .mail-panel p {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--jade-white);
  opacity: 0.82;
}

.page-contact .mail-template {
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.9;
  margin: 0 0 16px;
  padding: 14px;
  border: 1px solid var(--gold-deep);
  background: rgba(22, 18, 15, 0.5);
  color: var(--jade-white);
  white-space: pre-wrap;
  word-break: break-word;
}

.page-contact .copy-btn--onDark {
  color: var(--gold-light);
  border-color: var(--gold);
}

.page-contact .copy-btn--onDark:hover {
  background: var(--gold-light);
  color: var(--ink);
  border-color: var(--gold-light);
}

/* 响应时间 */
.page-contact .timeline-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .timeline-track {
  position: relative;
  height: 18px;
  border: 1px solid var(--ink);
  background: linear-gradient(
    to right,
    var(--grid) 0 37.5%,
    var(--gold) 37.5% 75%,
    var(--grid) 75% 100%
  );
}

.page-contact .timeline-fill {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    135deg,
    rgba(201, 162, 39, 0) 0 6px,
    rgba(122, 18, 32, 0.18) 6px 12px
  );
  pointer-events: none;
}

.page-contact .timeline-scale {
  position: relative;
  height: 20px;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--gold-deep);
}

.page-contact .timeline-scale span {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
}

.page-contact .timeline-scale span:nth-child(1) {
  left: 0;
  transform: none;
}

.page-contact .timeline-scale span:nth-child(2) {
  left: 37.5%;
}

.page-contact .timeline-scale span:nth-child(3) {
  left: 75%;
}

.page-contact .timeline-scale span:nth-child(4) {
  left: 100%;
  transform: translateX(-100%);
}

.page-contact .timeline-caption {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--brown);
  max-width: 40em;
}

.page-contact .ledger {
  margin: 22px 0 0;
  padding: 0;
  border-top: var(--contact-line);
}

.page-contact .ledger-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
  gap: 12px;
  padding: 11px 0;
  border-bottom: var(--contact-line);
}

.page-contact .ledger-key {
  font-size: 13px;
  color: var(--gold-deep);
}

.page-contact .ledger-val {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  text-align: left;
  word-break: break-word;
}

/* 办公地点 */
.page-contact .seal-block {
  border: 1px solid var(--ink);
  padding: 6px;
  background: var(--paper);
}

.page-contact .seal-inner {
  border: 1px solid var(--ink);
  padding: clamp(20px, 4vw, 40px);
}

.page-contact .seal-label {
  margin: 0 0 12px;
  font-size: var(--step--2);
  letter-spacing: 0.14em;
  color: var(--gold-deep);
}

.page-contact .seal-address {
  margin: 0 0 22px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(20px, 3.4vw, 30px);
  line-height: 1.5;
  letter-spacing: -0.01em;
}

.page-contact .seal-meta {
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
  margin-bottom: 18px;
}

.page-contact .seal-meta > div {
  background: var(--jade-white);
  padding: 11px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: baseline;
}

.page-contact .seal-meta-key {
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  color: var(--gold-deep);
  min-width: 5em;
}

.page-contact .seal-meta-val {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  word-break: break-all;
}

.page-contact .seal-note {
  margin: 0;
  font-size: 13px;
  color: var(--brown);
  max-width: 44em;
}

/* 合作 */
.page-contact .coop-grid {
  display: grid;
  gap: clamp(20px, 3.5vw, 36px);
}

.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--contact-line);
}

.page-contact .coop-list li {
  padding: 16px 0;
  border-bottom: var(--contact-line);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-contact .coop-tag {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--jade-white);
  background: var(--red);
  padding: 3px 9px;
  border-radius: 2px;
  line-height: 1.6;
  white-space: nowrap;
}

.page-contact .coop-list p {
  margin: 0;
  font-size: 13.5px;
  color: var(--brown);
}

.page-contact .coop-tail {
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid var(--gold);
  font-size: 13.5px;
  color: var(--brown);
  align-self: start;
}

/* 相关入口 */
.page-contact .band-links {
  padding-block: clamp(44px, 6vw, 72px);
  border-top: 1px solid var(--gold);
  background: var(--paper);
}

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

.page-contact .link-list li {
  border-bottom: var(--contact-line);
}

.page-contact .link-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 0;
  color: var(--ink);
  font-size: 14px;
  transition: color 180ms ease-out, padding-left 200ms ease-out;
}

.page-contact .link-list a::after {
  content: "→";
  font-family: var(--mono);
  color: var(--gold-deep);
  flex: 0 0 auto;
}

.page-contact .link-list a:hover {
  color: var(--red);
  padding-left: 8px;
}

.page-contact .link-list a:hover::after {
  color: var(--red);
}

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

  .page-contact .ledger-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
  }

  .page-contact .ledger-val {
    text-align: right;
  }

  .page-contact .seal-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .seal-meta > div {
    flex-direction: column;
    gap: 6px;
  }
}

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

  .page-contact .channel-row {
    grid-template-columns: 5fr 4fr 3fr;
  }

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

  .page-contact .timeline-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }

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