.page-contact {
  --contact-surface: #0B1F31;
  --contact-hair: #28485E;
  --contact-warm: #B96B4B;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  padding-top: calc(var(--header-h) + 16px);
  overflow-x: hidden;
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 0;
}

.page-contact h2 {
  font-size: clamp(28px, 5.4vw, 46px);
  line-height: 1.08;
}

.page-contact h3 {
  font-size: 20px;
  line-height: 1.2;
  color: var(--paper);
}

.page-contact p {
  margin: 0;
  line-height: 1.75;
}

.page-contact a {
  color: var(--cyan);
  text-decoration: none;
}

.page-contact a:hover,
.page-contact a:focus-visible {
  color: var(--orange);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: 8px 0 64px;
  overflow: hidden;
}

.page-contact .contact-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .32;
}

.page-contact .contact-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-contact .contact-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 19, 31, .35) 0%, rgba(6, 19, 31, .92) 72%, var(--ink) 100%),
    linear-gradient(90deg, var(--ink) 0%, rgba(6, 19, 31, .1) 70%);
}

.page-contact .contact-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-top: 36px;
}

.page-contact .hero-copy h1 {
  font-size: clamp(38px, 8.6vw, 74px);
  line-height: 1.02;
  max-width: 14em;
}

.page-contact .hero-lead {
  margin-top: 22px;
  font-size: 16px;
  color: var(--haze);
  max-width: 34em;
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-contact .hero-facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 34px;
  margin: 36px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-contact .fact-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 30px;
  color: var(--paper);
  line-height: 1;
}

.page-contact .fact-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--haze);
}

/* ---------- 联系卡 ---------- */

.page-contact .contact-card {
  background: var(--contact-surface);
  border-left: 3px solid var(--cyan);
  padding: 28px 24px;
  margin: 0;
}

.page-contact .hero-card {
  align-self: start;
}

.page-contact .card-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ochre);
  margin-bottom: 16px;
}

.page-contact .card-value {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--paper);
  letter-spacing: .02em;
  word-break: break-word;
}

.page-contact .card-value--mail {
  color: var(--cyan);
  margin-bottom: 10px;
}

.page-contact .card-note {
  margin-top: 18px;
  font-size: 13px;
  color: var(--haze);
  line-height: 1.7;
}

.page-contact .card-jump {
  display: inline-block;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
  border-bottom: 1px solid rgba(255, 106, 61, .5);
  padding-bottom: 3px;
}

/* ---------- 合作方向 ---------- */

.page-contact .contact-paths {
  padding: 64px 0 56px;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .section-head {
  max-width: 40em;
  margin-bottom: 34px;
}

.page-contact .section-lead {
  margin-top: 16px;
  font-size: 15px;
  color: var(--haze);
  max-width: 36em;
}

.page-contact .path-list {
  border-top: 1px solid var(--contact-hair);
}

.page-contact .path-item {
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .path-item summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  grid-template-areas:
    "index name"
    "index for";
  align-items: center;
  gap: 4px 12px;
  padding: 22px 32px 22px 0;
  position: relative;
  transition: background-color .18s var(--ease);
}

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

.page-contact .path-item summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 24px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
}

.page-contact .path-item[open] summary::after {
  content: "–";
  color: var(--orange);
}

.page-contact .path-item summary:hover {
  background: rgba(23, 59, 82, .32);
}

.page-contact .path-index {
  grid-area: index;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--contact-warm);
  letter-spacing: .1em;
}

.page-contact .path-name {
  grid-area: name;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  line-height: 1.15;
  color: var(--paper);
}

.page-contact .path-for {
  grid-area: for;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--haze);
}

.page-contact .path-item[open] .path-name {
  color: var(--cyan);
}

.page-contact .path-body {
  padding: 0 0 26px 56px;
  max-width: 48em;
}

.page-contact .path-body p {
  font-size: 15px;
  color: var(--haze);
}

.page-contact .path-meta {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  color: var(--ochre);
  letter-spacing: .01em;
}

/* ---------- 反馈流程 ---------- */

.page-contact .contact-flow {
  padding: 64px 0;
  background: linear-gradient(170deg, var(--ink) 0%, var(--contact-surface) 55%, var(--ink) 100%);
  border-top: 1px solid var(--contact-hair);
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .flow-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.page-contact .flow-steps {
  list-style: none;
  counter-reset: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin: 30px 0 0;
  padding: 0;
}

.page-contact .flow-steps li {
  position: relative;
  padding-left: 20px;
  border-left: 2px solid var(--contact-warm);
}

.page-contact .flow-steps li:nth-child(2) {
  border-left-color: var(--cyan);
}

.page-contact .flow-steps li:nth-child(3) {
  border-left-color: var(--orange);
}

.page-contact .step-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--haze);
  margin-bottom: 8px;
}

.page-contact .flow-steps h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.page-contact .flow-steps p {
  font-size: 14.5px;
  color: var(--haze);
}

.page-contact .flow-tail {
  margin-top: 28px;
  font-size: 14.5px;
  color: var(--haze);
}

.page-contact .flow-tail a {
  border-bottom: 1px solid rgba(34, 224, 207, .45);
}

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

.page-contact .flow-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-left: 2px solid var(--cyan);
}

.page-contact .flow-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--haze);
}

/* ---------- 提交前清单 ---------- */

.page-contact .contact-checklist {
  padding: 64px 0;
}

.page-contact .checklist-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-contact .checklist-list {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-contact .checklist-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .checklist-row:last-child {
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .checklist-row dt {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-contact .checklist-row dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--haze);
}

/* ---------- 服务时间与响应 ---------- */

.page-contact .contact-hours {
  padding: 0 0 64px;
}

.page-contact .hours-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--contact-hair);
  border-top: 1px solid var(--contact-hair);
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .hour-block {
  background: var(--ink);
  padding: 26px 22px 30px;
}

.page-contact .hour-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 6vw, 38px);
  line-height: 1;
  color: var(--cyan);
  margin-bottom: 14px;
}

.page-contact .hour-block:nth-child(2) .hour-num {
  color: var(--orange);
}

.page-contact .hour-block:nth-child(3) .hour-num {
  color: var(--haze);
}

.page-contact .hour-block h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.page-contact .hour-block p {
  font-size: 14px;
  color: var(--haze);
}

.page-contact .hours-note {
  margin-top: 26px;
  max-width: 52em;
  font-size: 14.5px;
  color: var(--haze);
  padding-left: 18px;
  border-left: 2px solid var(--contact-warm);
}

/* ---------- 联系方式 ---------- */

.page-contact .contact-direct {
  padding: 0 0 72px;
}

.page-contact .direct-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  padding-top: 44px;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .direct-copy > p {
  margin-top: 18px;
  font-size: 15px;
  color: var(--haze);
  max-width: 36em;
}

.page-contact .direct-links {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-contact .direct-links li {
  border-top: 1px solid var(--contact-hair);
}

.page-contact .direct-links li:last-child {
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .direct-links a {
  display: block;
  padding: 12px 0;
  font-size: 14px;
  color: var(--haze);
}

.page-contact .direct-links a:hover,
.page-contact .direct-links a:focus-visible {
  color: var(--cyan);
}

.page-contact .back-top {
  display: inline-block;
  margin-top: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-contact .direct-card {
  border-left-color: var(--orange);
  padding: 8px 24px;
}

.page-contact .card-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(40, 72, 94, .6);
}

.page-contact .card-row:last-child {
  border-bottom: 0;
}

.page-contact .card-row dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ochre);
}

.page-contact .card-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--paper);
  word-break: break-word;
}

/* ---------- 等高线收束 ---------- */

.page-contact .contact-contour {
  height: 180px;
  background:
    repeating-radial-gradient(circle at 18% 130%, transparent 0 22px, rgba(185, 107, 75, .22) 22px 23px),
    repeating-radial-gradient(circle at 86% 150%, transparent 0 30px, rgba(34, 224, 207, .12) 30px 31px),
    var(--ink);
  border-top: 1px solid var(--contact-hair);
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 760px) {
  .page-contact {
    padding-top: calc(var(--header-h) + 24px);
  }

  .page-contact .contact-hero {
    padding-bottom: 88px;
  }

  .page-contact .hero-lead {
    font-size: 17px;
  }

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

  .page-contact .flow-steps li {
    padding: 0 20px 0 18px;
  }

  .page-contact .flow-steps li:first-child {
    padding-left: 0;
  }

  .page-contact .checklist-row {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }

  .page-contact .card-row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-hero-inner {
    grid-template-columns: 1.2fr .8fr;
    align-items: end;
    gap: 64px;
    padding-top: 64px;
  }

  .page-contact .flow-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .checklist-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 56px;
  }

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

  .page-contact .hour-block {
    padding: 34px 30px 40px;
  }

  .page-contact .direct-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 64px;
  }

  .page-contact .contact-paths {
    padding: 88px 0 72px;
  }

  .page-contact .contact-flow,
  .page-contact .contact-checklist {
    padding: 88px 0;
  }

  .page-contact .path-item summary {
    grid-template-columns: 64px minmax(0, 1fr) 240px;
    grid-template-areas: "index name for";
    padding: 26px 40px 26px 0;
  }

  .page-contact .path-name {
    font-size: 26px;
  }

  .page-contact .path-for {
    text-align: right;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .path-item summary {
    transition: none;
  }
}