.page-contact {
  background-color: var(--c-ink);
  color: var(--c-white);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: clamp(31rem, 72vh, 46rem);
  padding: clamp(4.5rem, 11vw, 8rem) 0 clamp(2.5rem, 5vw, 4rem);
  overflow: hidden;
  isolation: isolate;
}

.page-contact .hero-bg {
  position: absolute;
  inset: 0;
}

.page-contact .hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 28% 58%;
  opacity: 0.5;
}

.page-contact .hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to left, rgba(10, 16, 32, 0.97) 0%, rgba(10, 16, 32, 0.88) 38%, rgba(10, 16, 32, 0.42) 100%),
    linear-gradient(to top, rgba(10, 16, 32, 1) 0%, rgba(10, 16, 32, 0) 58%);
}

.page-contact .hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  width: 100%;
  max-width: 48rem;
}

.page-contact .hero-inner h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 5.6vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--c-white);
}

.page-contact .hero-lead {
  margin: 0;
  max-width: 40rem;
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.8;
  color: #D5DCE8;
}

.page-contact .hero-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 2.25rem;
  width: 100%;
  margin-top: 0.85rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--c-line);
}

.page-contact .quick-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.page-contact .quick-key {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}

.page-contact .quick-val {
  font-size: clamp(0.875rem, 2.6vw, 1.0625rem);
  font-weight: 700;
  color: var(--c-white);
  overflow-wrap: anywhere;
}

.page-contact .hero-quick .quick-item:last-child .quick-val {
  color: var(--c-yellow);
}

/* ---------- 需求分流 ---------- */

.page-contact .contact-router {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  background-color: var(--c-ink);
}

.page-contact .router-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.page-contact .router-lead {
  margin: 0.9rem 0 0;
  max-width: 34rem;
  color: var(--c-muted);
  line-height: 1.8;
}

.page-contact .router-cards {
  display: grid;
  gap: 0.875rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .router-card {
  position: relative;
  padding: 1.5rem 1.6rem 1.6rem;
  background-color: var(--c-panel);
  box-shadow: inset 0 0 0 1px var(--c-line);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  transition: box-shadow var(--dur-2) var(--ease), background-color var(--dur-2) var(--ease);
}

.page-contact .router-card:hover,
.page-contact .router-card:focus-within {
  background-color: #162034;
  box-shadow: inset 0 0 0 1.5px var(--c-orange);
}

.page-contact .router-idx {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--c-orange);
}

.page-contact .router-card h3 {
  margin: 0.6rem 0 0.55rem;
  font-family: var(--font-head);
  font-size: clamp(1.0625rem, 2.4vw, 1.25rem);
  font-weight: 900;
  line-height: 1.35;
  color: var(--c-white);
}

.page-contact .router-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: #B6C0D2;
}

.page-contact .router-req-label {
  margin-top: 1.05rem !important;
  font-size: 0.6875rem !important;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-muted) !important;
}

.page-contact .router-req {
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.35rem;
}

.page-contact .router-req li {
  position: relative;
  padding-left: 1.05rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: #D5DCE8;
}

.page-contact .router-req li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background-color: var(--c-green);
  transform: rotate(45deg);
}

.page-contact .router-side {
  min-width: 0;
}

.page-contact .side-panel {
  padding: 1.75rem 1.6rem 1.6rem;
  background-color: var(--c-panel);
  box-shadow: inset 0 0 0 1px var(--c-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-contact .side-label {
  margin: 0;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-orange);
}

.page-contact .contact-list {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.1rem;
}

.page-contact .contact-line {
  display: grid;
  gap: 0.3rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .contact-line:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.page-contact .contact-key {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}

.page-contact .contact-value {
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-white);
  overflow-wrap: anywhere;
}

.page-contact .contact-line:nth-child(2) .contact-value {
  color: var(--c-yellow);
}

.page-contact .side-note {
  margin: 1.4rem 0 1.5rem;
  font-size: 0.875rem;
  line-height: 1.8;
  color: #B6C0D2;
}

.page-contact .side-panel .btn {
  width: 100%;
  justify-content: center;
  text-align: center;
}

/* ---------- 处理流程 ---------- */

.page-contact .contact-flow {
  position: relative;
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  background-color: var(--c-panel);
}

.page-contact .contact-flow::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--c-orange) 0%, var(--c-orange) 22%, var(--c-line) 22%, var(--c-line) 100%);
}

.page-contact .flow-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .flow-lead {
  margin: 0.9rem 0 0;
  max-width: 34rem;
  color: var(--c-muted);
  line-height: 1.8;
}

.page-contact .contact-flow-media {
  margin: 0;
}

.page-contact .contact-flow-media .media-frame {
  aspect-ratio: 4 / 3;
}

.page-contact .contact-flow-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .flow-band {
  position: relative;
}

.page-contact .flow-curve {
  display: none;
  width: 100%;
  height: 90px;
  opacity: 0.75;
}

.page-contact .flow-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.5rem;
}

.page-contact .flow-step {
  position: relative;
  padding-top: 1.6rem;
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--c-yellow);
  box-shadow: 0 0 0 4px rgba(237, 255, 74, 0.14);
}

.page-contact .flow-step h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 900;
  line-height: 1.4;
  color: var(--c-white);
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: #B6C0D2;
}

/* ---------- 合作方向 ---------- */

.page-contact .contact-collab {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  background-color: var(--c-ink);
}

.page-contact .collab-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2.25rem;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .collab-card {
  display: flex;
  flex-direction: column;
  padding: 1.75rem 1.6rem 1.7rem;
  background-color: var(--c-panel);
  box-shadow: inset 0 0 0 1px var(--c-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  transition: box-shadow var(--dur-2) var(--ease), transform var(--dur-2) var(--ease);
}

.page-contact .collab-card:hover {
  box-shadow: inset 0 0 0 1.5px var(--c-green);
  transform: translateY(-3px);
}

.page-contact .collab-card .tag {
  align-self: flex-start;
}

.page-contact .collab-card h3 {
  margin: 1rem 0 0.6rem;
  font-family: var(--font-head);
  font-size: clamp(1.0625rem, 2.4vw, 1.25rem);
  font-weight: 900;
  line-height: 1.35;
  color: var(--c-white);
}

.page-contact .collab-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: #B6C0D2;
}

.page-contact .collab-fit {
  margin-top: auto !important;
  padding-top: 1.15rem;
  font-size: 0.8125rem !important;
  color: var(--c-muted) !important;
}

/* ---------- 邮寄信息 ---------- */

.page-contact .contact-visit {
  padding: 0 0 clamp(3.5rem, 8vw, 6rem);
  background-color: var(--c-ink);
}

.page-contact .visit-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1fr);
  padding-top: clamp(2.5rem, 5vw, 3.5rem);
  border-top: 1px solid var(--c-line);
}

.page-contact .visit-lead {
  margin: 0.9rem 0 0;
  max-width: 36rem;
  color: var(--c-muted);
  line-height: 1.8;
}

.page-contact .visit-address {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.5rem 1.6rem;
  font-style: normal;
  background-color: var(--c-paper);
  color: var(--c-ink);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-contact .visit-address-label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: #5A6779;
}

.page-contact .visit-address-value {
  font-size: clamp(1.0625rem, 2.8vw, 1.375rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-ink);
}

.page-contact .visit-address-note {
  font-size: 0.875rem;
  line-height: 1.6;
  color: #5A6779;
}

.page-contact .visit-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .hero-inner {
    margin-left: auto;
  }

  .page-contact .visit-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .visit-strip {
    grid-column: 1 / -1;
  }
}

@media (min-width: 768px) {
  .page-contact .flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem 1.5rem;
  }

  .page-contact .collab-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-contact .router-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 24rem);
    gap: clamp(2.5rem, 5vw, 4rem);
  }

  .page-contact .router-side {
    position: sticky;
    top: 6.5rem;
  }

  .page-contact .flow-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    column-gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-contact .flow-head {
    grid-column: 1;
  }

  .page-contact .contact-flow-media {
    grid-column: 2;
  }

  .page-contact .flow-band {
    grid-column: 1 / -1;
    padding-top: 1rem;
  }

  .page-contact .flow-curve {
    display: block;
  }

  .page-contact .flow-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
    margin-top: -1.5rem;
  }

  .page-contact .collab-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .router-card,
  .page-contact .collab-card {
    transition: none;
  }

  .page-contact .collab-card:hover {
    transform: none;
  }
}
<<<END>>>