.page-contact {
  --pc-pad: clamp(18px, 3.2vw, 40px);
  --pc-flow-delay: 0s;
  color: var(--text);
  overflow-x: hidden;
}

.page-contact .container {
  width: 100%;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding: clamp(14px, 2.4vw, 26px) 0 0;
}
.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.page-contact .breadcrumbs__link {
  color: var(--mist);
  text-decoration: none;
}
.page-contact .breadcrumbs__link:hover,
.page-contact .breadcrumbs__link:focus-visible {
  color: var(--cyan);
}
.page-contact .breadcrumbs__sep {
  color: var(--slate);
}

/* ---------- 首屏框景 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(18px, 2.6vw, 34px);
}
.page-contact .contact-hero__frame {
  position: relative;
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  padding: clamp(22px, 3.4vw, 48px);
  background:
    radial-gradient(130% 100% at 100% 0%, rgba(53, 224, 208, 0.1), transparent 58%),
    linear-gradient(155deg, var(--ink) 0%, var(--ink-deep) 62%, var(--obsidian) 100%);
  border: 1px solid var(--line-gold);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}
.page-contact .contact-hero__frame::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(48%, 300px);
  height: 1px;
  background: linear-gradient(90deg, var(--gold), rgba(212, 166, 74, 0));
  transform: rotate(-4deg);
  transform-origin: left bottom;
  pointer-events: none;
}
.page-contact .contact-hero__copy {
  min-width: 0;
}
.page-contact .contact-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 7.6vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text);
}
.page-contact .contact-hero__lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 38ch;
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.78;
  color: var(--mist);
}
.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.8vw, 30px);
}
.page-contact .contact-hero__metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 16px 20px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.page-contact .contact-hero__metrics dt {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}
.page-contact .contact-hero__metrics dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.4vw, 24px);
  color: var(--gold-soft);
  letter-spacing: 0.02em;
}
.page-contact .contact-hero__media {
  margin: 0;
  min-width: 0;
}
.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
  border: 1px solid var(--line-gold);
}
.page-contact .contact-hero__media .media__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 四类合作方向 ---------- */
.page-contact .contact-dirs {
  padding-top: clamp(44px, 7vw, 88px);
}
.page-contact .contact-dirs__grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 42px);
  margin-top: clamp(22px, 3vw, 36px);
}
.page-contact .contact-dirs__index ol {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .contact-dirs__index a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  min-height: 44px;
  padding: 13px 12px;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.page-contact .contact-dirs__index a:hover,
.page-contact .contact-dirs__index a:focus-visible {
  color: var(--gold-soft);
  background: rgba(21, 64, 53, 0.72);
}
.page-contact .contact-dirs__num {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold);
}
.page-contact .contact-dirs__hint {
  margin: 16px 0 0;
  padding-left: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  border-left: 1px solid var(--line-gold);
}
.page-contact .dir-block {
  padding: clamp(20px, 2.8vw, 30px) 0;
  border-top: 1px solid var(--line-gold);
}
.page-contact .dir-block:first-child {
  padding-top: 0;
  border-top: 0;
}
.page-contact .dir-block__title {
  margin: 10px 0 12px;
  font-size: clamp(20px, 2.6vw, 27px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--text);
}
.page-contact .dir-block__text {
  margin: 0 0 18px;
  max-width: 40ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}
.page-contact .dir-block__grid {
  display: grid;
  gap: 18px;
}
.page-contact .dir-block__sub {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}
.page-contact .dir-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.page-contact .dir-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}
.page-contact .dir-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 1px;
  background: var(--gold);
}

/* ---------- 合作流程 ---------- */
.page-contact .contact-flow {
  padding-top: clamp(44px, 7vw, 88px);
}
.page-contact .flow__list {
  display: grid;
  gap: 14px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .flow__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px;
  background: linear-gradient(150deg, var(--ink) 0%, var(--ink-deep) 100%);
  border: 1px solid var(--line);
  border-left: 2px solid rgba(212, 166, 74, 0.5);
}
.page-contact .flow__num {
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1;
  color: var(--gold);
}
.page-contact .flow__detail {
  min-width: 0;
}
.page-contact .flow__detail summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  min-height: 44px;
  cursor: pointer;
  list-style: none;
}
.page-contact .flow__detail summary::-webkit-details-marker {
  display: none;
}
.page-contact .flow__detail summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 10px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
}
.page-contact .flow__detail[open] summary::after {
  content: "\2212";
}
.page-contact .flow__detail summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}
.page-contact .flow__title {
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}
.page-contact .flow__dur {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold-soft);
}
.page-contact .flow__body {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}
.page-contact .flow__body p {
  margin: 0 0 10px;
}
.page-contact .flow__body p:last-child {
  margin-bottom: 0;
}
.page-contact .flow__deliver {
  font-size: 13px;
  color: var(--text);
}
.page-contact .flow__deliver-tag {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 8px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--obsidian);
  background: var(--cyan);
}
.page-contact .flow__total {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
  border-left: 2px solid var(--coral);
}

/* ---------- 响应时效 ---------- */
.page-contact .contact-sla {
  margin-top: clamp(44px, 7vw, 88px);
  padding-top: clamp(36px, 5vw, 64px);
  padding-bottom: clamp(40px, 6vw, 72px);
}
.page-contact .contact-sla__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 2.8vw, 32px);
}
.page-contact .sla-card {
  padding: 20px 20px 22px;
  background: linear-gradient(160deg, rgba(21, 64, 53, 0.92) 0%, rgba(10, 15, 13, 0.96) 100%);
  border: 1px solid var(--line);
  border-top: 1px solid var(--line-gold);
}
.page-contact .sla-card__num {
  margin: 0;
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: 0.02em;
  color: var(--cyan);
}
.page-contact .sla-card__title {
  margin: 10px 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--gold-soft);
}
.page-contact .sla-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 联系方式（暖纸区） ---------- */
.page-contact .contact-desk {
  padding-top: clamp(40px, 6vw, 76px);
  padding-bottom: clamp(44px, 6vw, 80px);
  color: var(--ink);
}
.page-contact .contact-desk__intro {
  max-width: 46ch;
}
.page-contact .contact-desk__label {
  margin: 0;
  color: #8a6a1f;
}
.page-contact .contact-desk__title {
  margin: 12px 0 0;
  font-size: clamp(26px, 5vw, 42px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.page-contact .contact-desk__lede {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: #3c4a45;
}
.page-contact .contact-desk__media {
  margin: clamp(22px, 3vw, 34px) 0 0;
}
.page-contact .contact-desk__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid rgba(15, 42, 34, 0.22);
}
.page-contact .contact-desk__media .media__caption {
  margin-top: 10px;
  font-size: 12px;
  color: #5b6a64;
}
.page-contact .desk-card {
  display: grid;
  gap: 0;
  margin-top: clamp(24px, 3.4vw, 40px);
  background: #FBF5E9;
  border: 1px solid rgba(15, 42, 34, 0.35);
  box-shadow: 8px 8px 0 rgba(212, 166, 74, 0.32);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}
.page-contact .desk-card__row {
  padding: 20px;
  border-top: 1px dashed rgba(15, 42, 34, 0.28);
}
.page-contact .desk-card__row:first-child {
  border-top: 0;
}
.page-contact .desk-card__key {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: #8a6a1f;
}
.page-contact .desk-card__value {
  margin: 0 0 10px;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ink);
  overflow-wrap: anywhere;
}
.page-contact .desk-card__value a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid rgba(212, 166, 74, 0.8);
}
.page-contact .desk-card__value a:hover,
.page-contact .desk-card__value a:focus-visible {
  color: #0b5c50;
  border-bottom-color: #0b5c50;
}
.page-contact .desk-card__use {
  margin: 0;
  max-width: 42ch;
  font-size: 14px;
  line-height: 1.78;
  color: #45534d;
}

/* ---------- 常见问题 ---------- */
.page-contact .contact-faq {
  padding-top: clamp(44px, 7vw, 88px);
}
.page-contact .faq {
  margin-top: clamp(20px, 2.8vw, 32px);
  border-top: 1px solid var(--line-gold);
}
.page-contact .faq__item {
  border-bottom: 1px solid var(--line);
}
.page-contact .faq__item summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  min-height: 48px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  color: var(--text);
  transition: color var(--dur) var(--ease);
}
.page-contact .faq__item summary::-webkit-details-marker {
  display: none;
}
.page-contact .faq__item summary::before {
  content: "Q";
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
}
.page-contact .faq__item summary:hover,
.page-contact .faq__item summary:focus-visible {
  color: var(--cyan);
}
.page-contact .faq__item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.page-contact .faq__q {
  font-size: clamp(15px, 1.9vw, 17px);
  font-weight: 700;
  line-height: 1.6;
}
.page-contact .faq__a {
  padding: 0 0 20px 26px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}
.page-contact .faq__a p {
  margin: 0;
  max-width: 62ch;
}

/* ---------- 相关页面 ---------- */
.page-contact .contact-links {
  margin-top: clamp(36px, 5vw, 62px);
  padding-top: clamp(20px, 2.8vw, 30px);
  border-top: 1px solid var(--line-gold);
}
.page-contact .contact-links__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}
.page-contact .contact-links__list {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .contact-links__list a {
  display: block;
  min-height: 44px;
  padding: 11px 0;
  font-size: 15px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--dur) var(--ease);
}
.page-contact .contact-links__list a:hover,
.page-contact .contact-links__list a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--line-gold);
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-contact .dir-block__grid {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
  }
  .page-contact .contact-sla__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .desk-card {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .desk-card__row {
    border-top: 1px dashed rgba(15, 42, 34, 0.28);
  }
  .page-contact .desk-card__row:nth-child(-n + 2) {
    border-top: 0;
  }
  .page-contact .desk-card__row:nth-child(odd) {
    border-right: 1px dashed rgba(15, 42, 34, 0.28);
  }
  .page-contact .desk-card__row--wide {
    grid-column: 1 / -1;
    border-right: 0;
  }
  .page-contact .contact-links__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 28px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-contact .contact-hero__frame {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: stretch;
    gap: clamp(32px, 4vw, 60px);
  }
  .page-contact .contact-hero__media img {
    height: 100%;
    aspect-ratio: auto;
    min-height: 340px;
  }
  .page-contact .contact-dirs__grid {
    grid-template-columns: minmax(220px, 288px) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
  }
  .page-contact .contact-dirs__index {
    position: sticky;
    top: 96px;
    align-self: start;
    padding-right: 24px;
  }
  .page-contact .flow__list {
    gap: 16px;
  }
  .page-contact .flow__item:nth-child(2) {
    transform: translateX(28px);
  }
  .page-contact .flow__item:nth-child(3) {
    transform: translateX(14px);
  }
  .page-contact .flow__item:nth-child(4) {
    transform: translateX(42px);
  }
  .page-contact .contact-sla__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .contact-desk__intro {
    max-width: 52ch;
  }
  .page-contact .contact-desk__media {
    max-width: 620px;
  }
  .page-contact .contact-desk__media img {
    aspect-ratio: 16 / 9;
  }
  .page-contact .contact-links__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-dirs__index a,
  .page-contact .faq__item summary,
  .page-contact .contact-links__list a {
    transition: none;
  }
  .page-contact .flow__item {
    transform: none;
  }
}