.page-contact {
  --contact-gap: clamp(48px, 8vw, 96px);
  --contact-corner: 22px;
  background: var(--bg);
  color: var(--bone);
  overflow-x: clip;
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* 面包屑 */
.page-contact .contact-crumbs {
  padding-top: clamp(20px, 4vw, 32px);
}

.page-contact .breadcrumb-current {
  font-family: var(--font-serif);
  font-size: 0.82rem;
  color: var(--mist);
  letter-spacing: 0.04em;
}

/* 服务台首屏 */
.page-contact .contact-desk {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 var(--contact-gap);
  isolation: isolate;
}

.page-contact .contact-desk::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.16;
  -webkit-mask-image: linear-gradient(125deg, #000 10%, transparent 72%);
  mask-image: linear-gradient(125deg, #000 10%, transparent 72%);
  pointer-events: none;
}

.page-contact .contact-desk-grid {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}

.page-contact .eyebrow {
  color: var(--accent);
  letter-spacing: 0.14em;
}

.page-contact h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.3rem, 7.5vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0.32em 0 0.36em;
  max-width: 14ch;
}

.page-contact .lede {
  color: var(--mist);
  font-size: 1rem;
  line-height: 1.85;
  max-width: 44ch;
  margin: 0 0 clamp(26px, 4vw, 38px);
}

.page-contact .desk-channels {
  display: grid;
  gap: 20px;
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line);
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-contact .channel-label {
  font-family: var(--font-serif);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--dim);
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(0.92rem, 2.7vw, 1.24rem);
  color: var(--bone);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 6px;
  overflow-wrap: anywhere;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .channel-value:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.page-contact .channel-note {
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--dim);
}

.page-contact .desk-hours {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: clamp(24px, 4vw, 32px) 0 0;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .desk-visual {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .desk-visual .media {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--contact-corner)), calc(100% - var(--contact-corner)) 100%, 0 100%);
}

.page-contact .desk-visual .media img,
.page-contact .tpl-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .media-caption {
  padding: 10px 2px 0;
  font-family: var(--font-serif);
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--dim);
}

.page-contact .desk-signals {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.page-contact .desk-signals a {
  display: block;
  padding: 11px 12px;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--mist);
  text-decoration: none;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .desk-signals a:hover {
  color: var(--bg);
  border-color: var(--accent);
  background: var(--accent);
}

/* 问题描述模板 */
.page-contact .contact-templates {
  padding: var(--contact-gap) 0;
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-templates h2,
.page-contact .contact-partner h2,
.page-contact .contact-response h2,
.page-contact .contact-registry h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 4.2vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0.4em 0 0.5em;
}

.page-contact .tpl-lede {
  max-width: 52ch;
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .tpl-board {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: clamp(24px, 4vw, 40px) 0 clamp(28px, 4vw, 44px);
}

.page-contact .tpl-card {
  background: var(--panel);
  padding: clamp(20px, 3.2vw, 30px);
  scroll-margin-top: 96px;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .tpl-card:target {
  background: var(--bg);
  box-shadow: inset 0 0 0 2px var(--accent);
}

.page-contact .tpl-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  line-height: 1.32;
  margin: 14px 0 0;
  color: var(--bone);
}

.page-contact .tpl-steps {
  list-style: none;
  counter-reset: tpl-step;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 0.85rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .tpl-steps li {
  counter-increment: tpl-step;
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 8px;
}

.page-contact .tpl-steps li::before {
  content: counter(tpl-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.74rem;
  line-height: 1.95;
  color: var(--accent);
}

.page-contact .tpl-hint {
  margin: 18px 0 0;
  font-size: 0.8rem;
}

.page-contact .tpl-hint a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease);
}

.page-contact .tpl-hint a:hover {
  border-color: var(--accent);
}

.page-contact .tpl-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg);
}

.page-contact .tpl-figure .media-caption {
  padding: 12px 16px 14px;
}

/* 合作与内容反馈 */
.page-contact .contact-partner {
  padding: var(--contact-gap) 0;
}

.page-contact .partner-grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-contact .partner-text {
  max-width: 50ch;
  margin: 0 0 20px;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .partner-list {
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 32px);
  padding: 0;
  display: grid;
  gap: 11px;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--bone);
}

.page-contact .partner-list li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: baseline;
}

.page-contact .partner-list li::before {
  content: "";
  display: block;
  height: 2px;
  width: 18px;
  background: var(--accent);
  transform: translateY(-0.4em);
}

.page-contact .partner-note {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(20px, 3.4vw, 30px);
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--contact-corner) 100%, 0 calc(100% - var(--contact-corner)));
}

.page-contact .partner-note p:not(.plate) {
  margin: 14px 0 0;
  font-size: 0.87rem;
  line-height: 1.85;
  color: var(--mist);
}

/* 响应说明 */
.page-contact .contact-response {
  padding: var(--contact-gap) 0;
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
}

.page-contact .resp-head {
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-contact .resp-grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
}

.page-contact .resp-col {
  border-left: 2px solid var(--line);
  padding-left: clamp(16px, 2.6vw, 26px);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .resp-col:hover {
  border-color: var(--accent);
}

.page-contact .resp-col h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.4vw, 1.28rem);
  line-height: 1.34;
  margin: 0 0 12px;
}

.page-contact .resp-col p {
  margin: 0 0 16px;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .resp-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--bone);
}

.page-contact .resp-points li {
  position: relative;
  padding-left: 16px;
}

.page-contact .resp-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: var(--amber);
}

/* 地址与备案 */
.page-contact .contact-registry {
  padding: var(--contact-gap) 0;
}

.page-contact .reg-band {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 42px);
  clip-path: polygon(0 0, 100% 0, 100% 100%, calc(var(--contact-corner) + 8px) 100%, 0 calc(100% - var(--contact-corner) - 8px));
}

.page-contact .reg-list {
  display: grid;
  gap: 20px;
  margin: clamp(20px, 3vw, 28px) 0 0;
}

.page-contact .reg-list dt {
  font-family: var(--font-serif);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--dim);
  margin-bottom: 7px;
}

.page-contact .reg-list dd {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.65;
  color: var(--bone);
  overflow-wrap: anywhere;
}

.page-contact .reg-list dd.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

.page-contact .reg-note {
  margin: clamp(22px, 3.4vw, 30px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .reg-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 14px 0 0;
  font-size: 0.82rem;
}

.page-contact .reg-links a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-contact .reg-links a:hover {
  border-color: var(--accent);
}

/* 断点 */
@media (min-width: 620px) {
  .page-contact .desk-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 860px) {
  .page-contact .tpl-board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .resp-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .reg-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 32px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-desk-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-contact .partner-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-contact .reg-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-value,
  .page-contact .desk-signals a,
  .page-contact .tpl-card,
  .page-contact .resp-col,
  .page-contact .reg-links a {
    transition: none;
  }
}
<<<END>>>