.page-contact {
  --pc-radius: 4px;
  --pc-gap: clamp(16px, 2.4vw, 28px);
}

/* ---------- 首屏 ---------- */

.page-contact .c-hero {
  padding-top: clamp(24px, 4vw, 48px);
}

.page-contact .c-hero-grid {
  display: grid;
  gap: clamp(30px, 5vw, 64px);
  align-items: center;
}

.page-contact .c-hero-copy h1 {
  margin: clamp(14px, 2vw, 22px) 0 0;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 60px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 14em;
}

.page-contact .c-hero-copy .lead {
  margin-top: clamp(16px, 2.4vw, 24px);
  max-width: 34em;
  color: var(--mist);
}

.page-contact .c-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .c-hero-figure {
  margin: 0;
  position: relative;
}

.page-contact .c-hero-figure::after {
  content: "";
  position: absolute;
  inset: -14% -10% auto auto;
  width: 58%;
  height: 58%;
  background: radial-gradient(circle at 70% 30%, rgba(27, 224, 212, .16), transparent 68%);
  pointer-events: none;
}

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

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

/* ---------- 三条联系路径 ---------- */

.page-contact .c-path-grid {
  display: grid;
  gap: var(--pc-gap);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-contact .c-path {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.8vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  background:
    linear-gradient(158deg, rgba(17, 26, 43, .94) 0%, rgba(10, 15, 26, .94) 100%);
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}

.page-contact .c-path::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  border-radius: var(--pc-radius) 0 0 var(--pc-radius);
  background: linear-gradient(180deg, var(--cyan), var(--cyan-deep));
  opacity: .5;
  transition: opacity .3s var(--ease);
}

.page-contact .c-path:hover {
  border-color: rgba(27, 224, 212, .6);
  transform: translateY(-4px);
  box-shadow: 0 22px 44px -32px rgba(27, 224, 212, .75);
}

.page-contact .c-path:hover::before {
  opacity: 1;
}

.page-contact .c-path-no {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-contact .c-path-title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(20px, 2.3vw, 26px);
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .c-path-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .c-path-meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .c-path-value {
  margin: 0;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .01em;
  color: var(--cyan);
  word-break: break-word;
}

.page-contact .c-path-c .c-path-value {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 14px;
  color: var(--paper);
}

@media (min-width: 880px) {
  .page-contact .c-path-grid {
    grid-template-columns: minmax(0, 0.96fr) minmax(0, 1.14fr) minmax(0, 0.9fr);
    align-items: stretch;
  }
  .page-contact .c-path-b {
    padding-block: clamp(28px, 3.4vw, 44px);
  }
}

/* ---------- 提交前请准备 ---------- */

.page-contact .c-prep-grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-contact .c-prep-head .section-title {
  max-width: 16em;
}

.page-contact .c-prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
  counter-reset: none;
}

.page-contact .c-prep-item {
  display: flex;
  gap: clamp(14px, 2vw, 22px);
  padding-bottom: clamp(16px, 2.4vw, 24px);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .c-prep-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .c-prep-no {
  flex: none;
  font-family: var(--mono);
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 500;
  line-height: 1;
  color: var(--brick);
  padding-top: 2px;
}

.page-contact .c-prep-item h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(17px, 1.9vw, 20px);
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .c-prep-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 40em;
}

@media (min-width: 900px) {
  .page-contact .c-prep-grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

/* ---------- 处理流程 ---------- */

.page-contact .c-flow-figure {
  margin: clamp(26px, 3.6vw, 42px) 0 0;
}

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

.page-contact .c-timeline {
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
  margin-top: clamp(28px, 4vw, 46px);
}

.page-contact .c-step {
  position: relative;
  padding-top: 20px;
}

.page-contact .c-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--brick), var(--orange));
  opacity: .8;
}

.page-contact .c-step::after {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 138, 61, .14);
}

.page-contact .c-step-head {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

.page-contact .c-step-no {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-contact .c-step-name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(16px, 1.8vw, 19px);
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .c-step-arrow {
  flex: none;
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--mist);
  border-bottom: 2px solid var(--mist);
  transform: rotate(45deg);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.page-contact .c-step[data-open] .c-step-arrow {
  transform: rotate(225deg);
  border-color: var(--cyan);
}

.page-contact .c-step[data-open] .c-step-name {
  color: var(--cyan);
}

.page-contact .c-step .fold-content p {
  margin: 0;
  padding-top: 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 34em;
}

@media (min-width: 900px) {
  .page-contact .c-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: 0;
  }
  .page-contact .c-step {
    padding-inline: 20px;
    padding-top: 24px;
  }
  .page-contact .c-step:first-child {
    padding-left: 0;
  }
  .page-contact .c-step:last-child {
    padding-right: 0;
  }
}

/* ---------- 合作与资料互认 ---------- */

.page-contact .c-coop-grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-contact .c-coop-copy .prose {
  margin-top: clamp(14px, 2vw, 20px);
  color: var(--mist);
}

.page-contact .c-coop-note {
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--cyan-deep);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 36em;
}

.page-contact .c-coop-side {
  padding: clamp(22px, 2.8vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  background: var(--glass);
}

.page-contact .c-coop-side-title {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--paper);
}

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

.page-contact .c-coop-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .c-coop-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 2px;
  background: var(--orange);
}

@media (min-width: 900px) {
  .page-contact .c-coop-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(40px, 5vw, 76px);
  }
}

/* ---------- 联系与备案信息 ---------- */

.page-contact .c-card {
  padding: clamp(24px, 3.4vw, 48px);
  border-radius: var(--pc-radius);
}

.page-contact .c-card-head .section-title {
  margin-top: 12px;
}

.page-contact .c-card-head .section-desc {
  max-width: 38em;
}

.page-contact .c-card-list {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .c-card-row {
  display: grid;
  gap: 6px;
  padding: clamp(14px, 2vw, 20px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .c-card-row dt {
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--mist);
  font-family: var(--mono);
}

.page-contact .c-card-row dd {
  margin: 0;
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .c-card-mono {
  font-family: var(--mono);
  font-weight: 500;
  letter-spacing: .01em;
  color: var(--cyan);
}

.page-contact .c-card-legal {
  margin: clamp(22px, 3vw, 30px) 0 0;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--mist);
}

@media (min-width: 760px) {
  .page-contact .c-card-row {
    grid-template-columns: minmax(140px, 0.3fr) minmax(0, 1fr);
    align-items: baseline;
    gap: clamp(18px, 3vw, 40px);
  }
}

/* ---------- 尾部提示 ---------- */

.page-contact .c-tail-hint {
  margin: clamp(26px, 3.6vw, 40px) 0 0;
  padding: clamp(16px, 2.2vw, 22px) clamp(18px, 2.4vw, 26px);
  border-left: 2px solid var(--orange);
  background: rgba(255, 138, 61, .05);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 62em;
}

.page-contact .c-tail-hint a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .c-tail-hint a:hover {
  color: var(--paper);
}
<<<END>>>