.page-contact {
  display: block;
  padding-bottom: var(--s9);
  background:
    radial-gradient(900px 520px at 10% -6%, rgba(23, 69, 58, .5), transparent 70%),
    radial-gradient(680px 420px at 94% 2%, rgba(28, 68, 56, .38), transparent 72%);
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s2);
  padding-top: var(--s5);
  margin-bottom: var(--s5);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-contact .breadcrumbs__link {
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s ease, border-color .16s ease;
}

.page-contact .breadcrumbs__link:hover,
.page-contact .breadcrumbs__link:focus-visible {
  color: var(--acid);
  border-bottom-color: var(--acid);
}

.page-contact .breadcrumbs__item {
  color: var(--gray);
}

.page-contact .breadcrumbs__item[aria-current="page"] {
  color: var(--white);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  display: grid;
  gap: var(--s3);
  padding-bottom: var(--s7);
  border-bottom: 1px solid var(--line-soft);
  position: relative;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 96px;
  height: 2px;
  border-radius: var(--r-pill);
  background: var(--grad-acid);
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(30px, 5.8vw, 62px);
  line-height: 1.04;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray);
}

.page-contact .contact-hero__chips {
  margin-top: var(--s2);
}

.page-contact .chip {
  font-size: 12px;
  letter-spacing: .06em;
}

/* ---------- 通用章节标题 ---------- */

.page-contact .section-head {
  display: grid;
  gap: var(--s2);
  max-width: 70ch;
  margin-bottom: var(--s5);
}

.page-contact .section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .section-head__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 主联系面板 ---------- */

.page-contact .contact-main {
  padding-top: var(--s7);
}

.page-contact .contact-main__panel {
  border-radius: var(--r-xl);
}

.page-contact .panel__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .contact-grid {
  display: grid;
  gap: var(--s6);
}

.page-contact .contact-grid__left {
  display: grid;
  gap: var(--s4);
  align-content: start;
}

.page-contact .contact-grid__right {
  display: grid;
  gap: var(--s4);
  align-content: start;
}

.page-contact .channel-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: var(--s5);
  background: linear-gradient(160deg, rgba(23, 69, 58, .6), rgba(15, 39, 33, .92));
  overflow: hidden;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--acid);
}

.page-contact .channel-card--alt::before {
  background: var(--fit);
}

.page-contact .channel-card .label {
  display: block;
  color: var(--gray);
  margin-bottom: var(--s2);
}

.page-contact .channel-card__value {
  margin: 0 0 var(--s3);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(19px, 3.1vw, 30px);
  line-height: 1.25;
  letter-spacing: .01em;
  color: var(--acid);
  overflow-wrap: anywhere;
}

.page-contact .channel-card--alt .channel-card__value {
  color: var(--fit);
}

.page-contact .channel-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
}

.page-contact .contact-help {
  margin: 0;
  padding: var(--s4) var(--s5);
  border: 1px dashed var(--line);
  border-radius: var(--r-md);
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
  background: rgba(18, 46, 39, .5);
}

.page-contact .contact-help a {
  color: var(--acid);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 255, 61, .45);
}

.page-contact .contact-help a:hover,
.page-contact .contact-help a:focus-visible {
  border-bottom-color: var(--acid);
}

.page-contact .contact-help--wide {
  margin-top: var(--s5);
}

.page-contact .contact-grid__media {
  margin: 0;
}

.page-contact .media {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--panel-2);
}

.page-contact .media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.72) contrast(1.02);
  opacity: .92;
}

.page-contact .contact-grid__media img {
  aspect-ratio: 1000 / 700;
}

.page-contact .media__caption {
  display: block;
  padding: var(--s3) var(--s4);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--gray);
  border-top: 1px solid var(--line);
  background: var(--panel-2);
}

/* ---------- 反馈类型清单 ---------- */

.page-contact .contact-sub {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .feedback-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--s3);
}

.page-contact .feedback-item {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel-2);
  padding: var(--s4) var(--s4) var(--s4) var(--s6);
  transition: border-color .18s ease, background .18s ease, transform .18s ease;
}

.page-contact .feedback-item::before {
  content: "";
  position: absolute;
  left: var(--s4);
  top: 24px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid var(--line);
  background: transparent;
  transition: border-color .18s ease, background .18s ease;
}

.page-contact .feedback-item:hover,
.page-contact .feedback-item:focus-within {
  border-color: var(--acid);
  background: rgba(23, 69, 58, .55);
  transform: translateY(-2px);
}

.page-contact .feedback-item:hover::before,
.page-contact .feedback-item:focus-within::before {
  border-color: var(--acid);
  background: var(--acid);
}

.page-contact .feedback-item__title {
  margin: 0 0 var(--s2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .feedback-item__desc {
  margin: 0 0 var(--s3);
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
}

.page-contact .feedback-item__need {
  margin: 0;
  padding-top: var(--s3);
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(242, 251, 246, .8);
}

.page-contact .feedback-item__need a {
  color: var(--acid);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 255, 61, .45);
}

.page-contact .feedback-item__need-label {
  display: inline-block;
  margin-right: var(--s2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--acid);
}

.page-contact .contact-grid__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
}

.page-contact .contact-grid__note a {
  color: var(--acid);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 255, 61, .45);
}

/* ---------- 处理流程 ---------- */

.page-contact .contact-flow {
  padding-top: var(--s8);
}

.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--s4);
}

.page-contact .flow__item {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(170deg, rgba(23, 69, 58, .45), rgba(18, 46, 39, .92));
  padding: var(--s5) var(--s4) var(--s4);
  transition: border-color .24s ease, transform .24s ease;
}

.page-contact .flow__item:hover,
.page-contact .flow__item:focus-within {
  border-color: var(--acid);
  transform: translateY(-4px);
}

.page-contact .flow__node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: var(--s3);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--acid);
}

.page-contact .flow__title {
  margin: 0 0 var(--s2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .flow__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
}

.page-contact .flow__extra {
  margin-top: var(--s3);
  padding-top: var(--s3);
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(242, 251, 246, .78);
}

/* ---------- 商务与合作 ---------- */

.page-contact .contact-partners {
  padding-top: var(--s8);
}

.page-contact .partner-cards {
  align-items: stretch;
}

.page-contact .partner-card {
  display: grid;
  gap: var(--s3);
  align-content: start;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: var(--s5);
  background: linear-gradient(165deg, rgba(23, 69, 58, .5), rgba(18, 46, 39, .95));
  transition: border-color .24s ease, transform .24s ease;
}

.page-contact .partner-card:hover {
  border-color: var(--acid);
  transform: translateY(-4px);
}

.page-contact .partner-card .label {
  color: var(--gray);
}

.page-contact .partner-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.3;
  color: var(--white);
}

.page-contact .partner-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
}

.page-contact .partner-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--s2);
}

.page-contact .partner-card__list li {
  position: relative;
  padding-left: var(--s5);
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(242, 251, 246, .85);
}

.page-contact .partner-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 2px;
  border-radius: var(--r-pill);
  background: var(--grad-acid);
}

/* ---------- 上海办公 ---------- */

.page-contact .contact-shanghai {
  padding-top: var(--s8);
}

.page-contact .contact-shanghai__panel {
  border-radius: var(--r-xl);
}

.page-contact .contact-shanghai__grid {
  display: grid;
  gap: var(--s6);
}

.page-contact .contact-shanghai__text {
  display: grid;
  gap: var(--s4);
  align-content: start;
}

.page-contact .contact-shanghai__text h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .contact-shanghai__para {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

.page-contact .office {
  display: grid;
  gap: var(--s2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: var(--s4) var(--s5);
  background: linear-gradient(150deg, rgba(23, 69, 58, .55), rgba(15, 39, 33, .92));
}

.page-contact .office .label {
  color: var(--gray);
}

.page-contact .office__value {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
}

.page-contact .contact-shanghai__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
}

.page-contact .contact-shanghai__media {
  margin: 0;
  align-self: start;
}

.page-contact .contact-shanghai__media img {
  aspect-ratio: 900 / 600;
}

/* ---------- 响应式 ---------- */

@media (min-width: 860px) {
  .page-contact .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--s5);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    grid-template-areas:
      "eyebrow eyebrow"
      "title   lead"
      "title   chips";
    column-gap: var(--s7);
    row-gap: var(--s4);
    align-items: start;
  }

  .page-contact .contact-hero .eyebrow {
    grid-area: eyebrow;
  }

  .page-contact .contact-hero h1 {
    grid-area: title;
  }

  .page-contact .contact-hero__lead {
    grid-area: lead;
  }

  .page-contact .contact-hero__chips {
    grid-area: chips;
    margin-top: 0;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--s7);
  }

  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .flow__item:not(:last-child)::after {
    content: "";
    position: absolute;
    right: calc(-1 * var(--s5));
    top: calc(var(--s5) + 21px);
    width: var(--s5);
    height: 1px;
    background: linear-gradient(90deg, var(--line), var(--acid));
    opacity: .65;
  }

  .page-contact .flow__extra {
    max-height: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    overflow: hidden;
    opacity: 0;
    transition: max-height .28s ease, opacity .28s ease, margin-top .28s ease,
      padding-top .28s ease, border-color .28s ease;
  }

  .page-contact .flow__item:hover .flow__extra,
  .page-contact .flow__item:focus-within .flow__extra {
    max-height: 220px;
    margin-top: var(--s3);
    padding-top: var(--s3);
    border-top-color: var(--line);
    opacity: 1;
  }
}

@media (min-width: 1040px) {
  .page-contact .contact-shanghai__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: var(--s7);
    align-items: center;
  }
}

@media (max-width: 480px) {
  .page-contact .channel-card,
  .page-contact .partner-card,
  .page-contact .flow__item {
    padding: var(--s4);
  }

  .page-contact .feedback-item {
    padding-left: var(--s5);
  }

  .page-contact .feedback-item::before {
    left: var(--s3);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .feedback-item,
  .page-contact .flow__item,
  .page-contact .partner-card {
    transition: none;
  }

  .page-contact .flow__item:hover,
  .page-contact .flow__item:focus-within,
  .page-contact .partner-card:hover,
  .page-contact .feedback-item:hover {
    transform: none;
  }
}