.page-contact {
  --pc-gap: clamp(20px, 3vw, 34px);
  --pc-side: 336px;
  padding-bottom: 72px;
}

.page-contact .breadcrumb {
  margin: 18px 0 8px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: 6px 0 clamp(28px, 4vw, 48px);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: var(--pc-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .contact-hero__copy h1 {
  margin: 10px 0 16px;
  font-size: clamp(32px, 5.6vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--mist);
}

.page-contact .contact-hero__lede {
  max-width: 54ch;
  margin: 0 0 20px;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--gray-cyan);
}

.page-contact .contact-hero__media {
  margin: 0;
  overflow: hidden;
  height: 220px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  box-shadow: var(--shadow-panel);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
  .page-contact .contact-hero__media {
    height: clamp(230px, 24vw, 300px);
  }
}

/* ---------- 主栏 + 粘性联系卡 ---------- */
.page-contact .contact-layout {
  display: grid;
  gap: var(--pc-gap);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 980px) {
  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 1fr) var(--pc-side);
    align-items: start;
  }
  .page-contact .contact-card {
    position: sticky;
    top: 92px;
  }
}

.page-contact .csection {
  padding: clamp(24px, 3.6vw, 38px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .csection:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .csection .section-title {
  margin: 6px 0 14px;
  font-size: clamp(23px, 3vw, 32px);
  line-height: 1.24;
  color: var(--mist);
}

.page-contact .csection .prose {
  max-width: 60ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--gray-cyan);
}

/* ---------- 反馈类型折叠组 ---------- */
.page-contact .feedback-types {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.page-contact .ft {
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--ink-800);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .ft[data-open] {
  border-color: var(--cyan);
  background: var(--ink-700);
}

.page-contact .ft__trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 15px 22px;
  border: 0;
  background: none;
  color: var(--mist);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-contact .ft__trigger:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: -4px;
}

.page-contact .ft__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-contact .ft__name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .ft__dot {
  width: 9px;
  height: 9px;
  margin-left: auto;
  flex: 0 0 auto;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ft[data-open] .ft__dot {
  background: var(--amber);
  border-color: var(--amber);
}

.page-contact .ft .disclosure__inner {
  padding: 0 22px 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray-cyan);
}

.page-contact .ft .disclosure__inner p {
  margin: 0;
}

/* ---------- 提交材料清单 ---------- */
.page-contact .check-list {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
}

.page-contact .check-list > li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 18px;
  border-left: 2px solid var(--line);
  border-radius: 0 12px 12px 0;
  background: linear-gradient(90deg, rgba(56, 240, 208, 0.07), rgba(56, 240, 208, 0) 72%);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .check-list > li:hover {
  border-left-color: var(--cyan);
}

.page-contact .check-list__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-contact .check-list h3 {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 700;
  color: var(--mist);
}

.page-contact .check-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--gray-cyan);
}

/* ---------- 三步流程 ---------- */
.page-contact .steps {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-contact .step {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-contact .step__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-contact .step h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--mist);
}

.page-contact .step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--gray-cyan);
}

.page-contact .step-arrow {
  display: none;
  color: var(--cyan);
}

@media (min-width: 880px) {
  .page-contact .steps {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: start;
    gap: 10px;
  }
  .page-contact .step-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 42px;
  }
}

.page-contact .process-figure {
  margin: 24px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
}

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

.page-contact .process-note {
  margin-top: 16px;
  font-size: 14px;
  color: var(--gray-cyan);
}

/* ---------- 自助路径 ---------- */
.page-contact .route-list {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.page-contact .route-item {
  display: grid;
  gap: 7px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  text-decoration: none;
  color: inherit;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .route-item:hover,
.page-contact .route-item:focus-visible {
  transform: translateX(4px);
  border-color: var(--cyan);
  background: var(--ink-700);
  outline: none;
}

.page-contact .route-item__tag {
  justify-self: start;
}

.page-contact .route-item h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--mist);
}

.page-contact .route-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--gray-cyan);
}

.page-contact .route-item__cta {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 协作 ---------- */
.page-contact .coop-grid {
  display: grid;
  gap: 18px;
  margin-top: 18px;
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 860px) {
  .page-contact .coop-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-contact .coop-copy p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--gray-cyan);
}

.page-contact .coop-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
}

.page-contact .coop-card h3 {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-contact .coop-card ul {
  list-style: none;
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
}

.page-contact .coop-card li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--gray-cyan);
}

.page-contact .coop-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 联系方式面板 ---------- */
.page-contact .reach-panel {
  display: grid;
  gap: 18px;
  margin-top: 22px;
  padding: clamp(20px, 3vw, 30px);
  border-radius: var(--radius);
  background: var(--mist);
  color: var(--ink-800);
  grid-template-columns: minmax(0, 1fr);
}

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

.page-contact .reach-item__k {
  display: block;
  margin-bottom: 5px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-700);
}

.page-contact .reach-item__v {
  display: block;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-800);
  overflow-wrap: anywhere;
}

.page-contact .reach-item__v--mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-contact .reach-note {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid rgba(7, 18, 15, 0.16);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ink-700);
}

/* ---------- 粘性联系卡 ---------- */
.page-contact .contact-side {
  min-width: 0;
}

.page-contact .contact-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(165deg, var(--ink-800), var(--ink-900));
  box-shadow: var(--shadow-panel);
}

.page-contact .contact-card__status {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-contact .contact-card__dot {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(56, 240, 208, 0.16);
  animation: pc-pulse 2.4s ease-in-out infinite;
}

@keyframes pc-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(56, 240, 208, 0.16); }
  50% { box-shadow: 0 0 0 9px rgba(56, 240, 208, 0.04); }
}

.page-contact .contact-card__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--gray-cyan);
}

.page-contact .contact-card__list {
  display: grid;
  gap: 14px;
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-card__list dt {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gray-cyan);
}

.page-contact .contact-card__list dd {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 14.5px;
  letter-spacing: 0.02em;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-contact .contact-card__btn {
  display: flex;
  width: 100%;
  margin-top: 18px;
  justify-content: center;
  text-align: center;
}

.page-contact .contact-card__foot {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--gray-cyan);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card__dot {
    animation: none;
  }
  .page-contact .route-item,
  .page-contact .ft,
  .page-contact .ft__dot,
  .page-contact .check-list > li {
    transition: none;
  }
  .page-contact .route-item:hover,
  .page-contact .route-item:focus-visible {
    transform: none;
  }
}
<<<END>>>