.page-contact {
  --c-gap: clamp(16px, 3vw, 30px);
  --c-pad: clamp(18px, 3.2vw, 34px);
  --c-border: 2px solid var(--line);
  padding-bottom: clamp(40px, 7vw, 90px);
  overflow-x: clip;
}

.page-contact .breadcrumb {
  margin-top: clamp(10px, 2vw, 18px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(16px, 3vw, 34px) clamp(30px, 5.5vw, 66px);
  border-top: 1px solid var(--line);
  margin-top: clamp(10px, 2vw, 20px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: clamp(90px, 24vw, 260px);
  height: 3px;
  background: linear-gradient(90deg, var(--lime), var(--orange));
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 46px);
}

.page-contact .contact-hero__eyebrow {
  color: var(--lime);
}

.page-contact .contact-hero__copy h1 {
  font-family: var(--font-title);
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.03;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--mist);
  margin: 12px 0 0;
  max-width: 15em;
}

.page-contact .contact-hero__copy h1::after {
  content: "";
  display: block;
  width: clamp(64px, 12vw, 128px);
  height: 6px;
  margin-top: 18px;
  background: linear-gradient(90deg, var(--lime), var(--orange));
}

.page-contact .contact-hero__copy .lead {
  margin-top: 20px;
  max-width: 48ch;
  color: var(--sage);
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.78;
}

.page-contact .contact-hero__actions {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .contact-hero__media {
  margin: 0;
  border: var(--c-border);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 联系渠道 ---------- */
.page-contact .contact-channels__grid {
  display: grid;
  gap: var(--c-gap);
}

.page-contact .contact-card {
  position: relative;
  background: var(--ink-2);
  border: var(--c-border);
  box-shadow: var(--shadow-hard);
  padding: var(--c-pad);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: linear-gradient(90deg, var(--lime) 0 34%, var(--orange) 34% 46%, transparent 46%);
}

.page-contact .contact-card h2 {
  font-family: var(--font-title);
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.15;
  color: var(--mist);
  margin: 14px 0 0;
}

.page-contact .contact-list {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-item {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

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

.page-contact .contact-item dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sage);
  margin-bottom: 7px;
}

.page-contact .contact-item dd {
  margin: 0;
}

.page-contact .contact-value {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(14px, 1.9vw, 16px);
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}

.page-contact .contact-value--mail {
  color: var(--lime);
  font-size: clamp(13px, 1.8vw, 15px);
}

.page-contact .contact-value--time {
  color: var(--orange);
}

.page-contact .copy-btn {
  margin-top: 12px;
  padding: 8px 16px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lime);
  background: transparent;
  border: 1px solid var(--lime);
  border-radius: var(--radius-card);
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--lime);
  color: var(--on-lime);
  box-shadow: var(--shadow-soft);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-contact .copy-status {
  display: block;
  min-height: 1.1em;
  margin-top: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--orange);
}

/* ---------- 对号入座 ---------- */
.page-contact .contact-routes__title {
  font-family: var(--font-title);
  font-size: clamp(20px, 3vw, 27px);
  line-height: 1.2;
  color: var(--mist);
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  padding-left: 14px;
  border-left: 4px solid var(--lime);
}

.page-contact .route-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .route {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 16px;
  background: linear-gradient(90deg, rgba(200, 255, 61, 0.07), rgba(200, 255, 61, 0) 65%);
  border-left: 2px solid var(--line);
  transition: border-color 0.2s var(--ease);
}

.page-contact .route:hover {
  border-left-color: var(--lime);
}

.page-contact .route__num {
  font-family: var(--font-data);
  font-size: 18px;
  line-height: 1.3;
  color: var(--lime);
}

.page-contact .route__body h3 {
  font-family: var(--font-title);
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.3;
  color: var(--mist);
  margin: 0 0 6px;
}

.page-contact .route__body p {
  margin: 0;
  color: var(--sage);
  font-size: 14px;
  line-height: 1.72;
}

.page-contact .route__link {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--lime-dim);
  padding-bottom: 2px;
}

.page-contact .route__link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 合作类型 ---------- */
.page-contact .contact-types__head {
  max-width: 62ch;
}

.page-contact .contact-types__head .lead {
  color: var(--sage);
  margin-top: 12px;
}

.page-contact .type-grid {
  display: grid;
  gap: var(--c-gap);
  margin-top: clamp(22px, 3vw, 38px);
}

.page-contact .type-card {
  background: var(--ink-3);
  border: var(--c-border);
  padding: var(--c-pad);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .type-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-soft);
  border-color: var(--lime-dim);
}

.page-contact .type-card h3 {
  font-family: var(--font-title);
  font-size: clamp(19px, 2.6vw, 23px);
  line-height: 1.25;
  color: var(--mist);
  margin: 14px 0 4px;
}

.page-contact .type-card__who {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
  margin: 0 0 12px;
}

.page-contact .type-card p:last-child {
  margin: 0;
  color: var(--sage);
  font-size: 14.5px;
  line-height: 1.78;
}

/* ---------- 沟通流程 ---------- */
.page-contact .contact-process__grid {
  display: grid;
  gap: clamp(22px, 4vw, 46px);
}

.page-contact .contact-process__media {
  margin: 0;
  border: var(--c-border);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-contact .contact-process__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.page-contact .contact-process__media .media-frame__caption {
  display: block;
  padding: 12px 16px;
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--sage);
  border-top: 1px solid var(--line);
}

.page-contact .contact-process__steps h2 {
  font-family: var(--font-title);
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.16;
  color: var(--mist);
  margin: 10px 0 clamp(18px, 2.6vw, 26px);
}

.page-contact .accordion {
  display: grid;
  gap: 10px;
}

.page-contact .accordion__item h3 {
  margin: 0;
  font-size: inherit;
  font-weight: 400;
}

.page-contact .accordion__trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  text-align: left;
  padding: 15px 16px;
  background: var(--ink-2);
  color: var(--mist);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime-dim);
  border-radius: var(--radius-card);
  font-family: var(--font-title);
  font-size: clamp(16px, 2.2vw, 19px);
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .accordion__trigger:hover {
  border-left-color: var(--lime);
  background: var(--ink-3);
}

.page-contact .accordion__trigger:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-contact .step-num {
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--orange);
  flex: 0 0 auto;
}

.page-contact .step-name {
  flex: 1 1 auto;
}

.page-contact .accordion__item[data-open] .accordion__trigger {
  background: var(--lime);
  color: var(--on-lime);
  border-color: var(--lime);
}

.page-contact .accordion__item[data-open] .step-num {
  color: var(--on-lime);
}

.page-contact .accordion__panel {
  border: 1px solid var(--line);
  border-top: 0;
  background: var(--ink-3);
}

.page-contact .accordion__body {
  padding: 16px;
}

.page-contact .accordion__body p {
  margin: 0;
  color: var(--sage);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- 结尾反馈 ---------- */
.page-contact .contact-tail__grid {
  display: grid;
  gap: var(--c-gap);
}

.page-contact .tail-card {
  background: var(--ink-2);
  border: var(--c-border);
  padding: var(--c-pad);
  box-shadow: var(--shadow-hard);
}

.page-contact .tail-card--reach {
  background: linear-gradient(155deg, var(--ink-3), var(--ink-2) 70%);
  border-color: var(--lime-dim);
}

.page-contact .tail-card h2 {
  font-family: var(--font-title);
  font-size: clamp(21px, 3.2vw, 29px);
  line-height: 1.2;
  color: var(--mist);
  margin: 14px 0 12px;
}

.page-contact .tail-card > p {
  margin: 0 0 16px;
  color: var(--sage);
  font-size: 14.5px;
  line-height: 1.78;
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .prep-list li {
  display: grid;
  gap: 5px;
  padding-left: 14px;
  border-left: 2px solid var(--orange);
}

.page-contact .prep-list strong {
  font-family: var(--font-title);
  font-size: 15.5px;
  color: var(--mist);
}

.page-contact .prep-list span {
  color: var(--sage);
  font-size: 14px;
  line-height: 1.72;
}

.page-contact .tail-links {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--sage);
}

.page-contact .tail-card a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--lime-dim);
}

.page-contact .tail-card a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-contact .tail-note {
  margin: 18px 0 0;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.8;
  color: var(--sage);
}

.page-contact .tail-card--reach .btn-row {
  margin: 0 0 4px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .prep-list li {
    grid-template-columns: 118px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 760px) {
  .page-contact .type-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-tail__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-process__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .type-card,
  .page-contact .route,
  .page-contact .accordion__trigger,
  .page-contact .copy-btn {
    transition: none;
  }

  .page-contact .type-card:hover {
    transform: none;
  }
}