.page-contact {
  background: var(--ink);
  color: var(--on-dark);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 95% at 88% 6%, rgba(15, 29, 49, .95) 0%, rgba(10, 31, 26, 0) 58%),
    var(--ink);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(195, 203, 198, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(195, 203, 198, .07) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.page-contact .hero-inner {
  position: relative;
  display: grid;
  gap: clamp(30px, 4.5vw, 56px);
  align-items: center;
}

.page-contact .hero-copy {
  min-width: 0;
}

.page-contact .hero-title {
  margin: 14px 0 18px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(36px, 6vw, 74px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--on-dark);
}

.page-contact .hero-lead {
  max-width: 62ch;
}

.page-contact .hero-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 40px;
  margin: 34px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-contact .hero-meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--stone);
  margin-bottom: 6px;
}

.page-contact .hero-meta dd {
  margin: 0;
  font-size: 15px;
  color: var(--on-dark);
}

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

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

@media (min-width: 900px) {
  .page-contact .hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

/* ---------- 区块标题 ---------- */
.page-contact .blk-head {
  max-width: 68ch;
  margin-bottom: clamp(26px, 3.6vw, 46px);
}

.page-contact .blk-title {
  margin: 12px 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -.01em;
}

/* ---------- 通道一览 ---------- */
.page-contact .contact-channels {
  background: var(--night);
}

.page-contact .pick {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
}

.page-contact .pick a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--on-dark);
  text-decoration: none;
  background: rgba(29, 58, 49, .72);
  border: 1px solid var(--line-2);
  clip-path: polygon(10px 0, 100% 0, 100% 100%, 0 100%, 0 10px);
  transition: background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .pick a:hover,
.page-contact .pick a:focus-visible {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.page-contact .gates {
  display: grid;
  gap: var(--gap);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-contact .gate {
  position: relative;
  padding: 34px 26px 30px;
  background: var(--moss);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--chamfer)), calc(100% - var(--chamfer)) 100%, 0 100%);
  transition: background .28s var(--ease), transform .28s var(--ease);
}

.page-contact .gate::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 56px;
  height: 3px;
  background: var(--lime);
  transition: width .34s var(--ease);
}

.page-contact .gate:hover,
.page-contact .gate:focus-within {
  background: var(--turf);
}

.page-contact .gate:hover::before,
.page-contact .gate:focus-within::before {
  width: 100%;
}

.page-contact .gate__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--lime);
}

.page-contact .gate__title {
  margin: 12px 0 16px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 2.5vw, 27px);
  letter-spacing: .01em;
  color: var(--on-dark);
}

.page-contact .gate__value {
  margin: 0 0 16px;
  padding: 11px 14px;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--on-dark);
  background: rgba(10, 31, 26, .6);
  border-left: 2px solid var(--amber);
  overflow-wrap: anywhere;
}

.page-contact .gate__use {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .gate__detail {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--steel);
  transition: max-height .3s var(--ease), opacity .3s var(--ease), margin-top .3s var(--ease);
}

.page-contact .gate:hover .gate__detail,
.page-contact .gate:focus-within .gate__detail {
  max-height: 18em;
  opacity: 1;
  margin-top: 14px;
}

@media (hover: none) {
  .page-contact .gate__detail {
    max-height: none;
    opacity: 1;
    margin-top: 14px;
  }
}

@media (min-width: 760px) {
  .page-contact .gates {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding-bottom: 48px;
  }
  .page-contact .gate:nth-child(2) {
    margin-top: 26px;
  }
  .page-contact .gate:nth-child(3) {
    margin-top: 52px;
  }
}

/* ---------- 米白阅读区 ---------- */
.page-contact .contact-guide {
  color: var(--on-light);
}

.page-contact .guide-grid {
  display: grid;
  gap: clamp(34px, 4.5vw, 60px);
  grid-template-columns: 1fr;
}

.page-contact .guide-col {
  min-width: 0;
}

.page-contact .guide-title {
  margin: 12px 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--on-light);
}

.page-contact .guide-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(18, 33, 28, .78);
}

.page-contact .guide-tail {
  margin: 24px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(18, 33, 28, .16);
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(18, 33, 28, .7);
}

.page-contact .band--bone .sec-label {
  color: rgba(18, 33, 28, .62);
}

.page-contact .band--bone .sec-label__no {
  color: var(--clay);
}

.page-contact .tick-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .tick-list li {
  position: relative;
  padding-left: 24px;
  font-size: 15.5px;
  line-height: 1.75;
}

.page-contact .tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 12px;
  height: 2px;
  background: var(--lime);
}

.page-contact .band--bone .tick-list li::before {
  background: var(--clay);
}

.page-contact .tick-list strong {
  font-weight: 700;
}

.page-contact .prep-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .prep-list li {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid rgba(18, 33, 28, .14);
}

.page-contact .prep-list li:last-child {
  border-bottom: 1px solid rgba(18, 33, 28, .14);
}

.page-contact .prep-list__k {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--clay);
}

.page-contact .prep-list__v {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(18, 33, 28, .8);
}

.page-contact .band--bone .note {
  margin-top: 26px;
  background: rgba(180, 96, 60, .1);
  color: var(--on-light);
}

@media (min-width: 900px) {
  .page-contact .guide-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(44px, 5vw, 76px);
  }
}

/* ---------- 合作对接 ---------- */
.page-contact .contact-partner {
  background:
    linear-gradient(180deg, var(--ink) 0%, #0C241D 100%);
}

.page-contact .partner-grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: 1fr;
}

.page-contact .partner {
  padding: 30px 26px 32px;
  background: var(--turf);
  border: 1px solid var(--line);
  clip-path: polygon(var(--chamfer) 0, 100% 0, 100% 100%, 0 100%, 0 var(--chamfer));
}

.page-contact .partner__title {
  margin: 16px 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(19px, 2.3vw, 25px);
  color: var(--on-dark);
}

.page-contact .partner__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .partner-cta {
  margin: clamp(28px, 3.4vw, 42px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .partner-cta .num {
  color: var(--on-dark);
  font-family: var(--font-mono);
}

@media (min-width: 820px) {
  .page-contact .partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 处理流程 ---------- */
.page-contact .contact-flow {
  background: var(--night);
}

.page-contact .flow-layout {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  grid-template-columns: 1fr;
}

.page-contact .flow-index ol {
  list-style: none;
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-contact .flow-index ol::-webkit-scrollbar {
  display: none;
}

.page-contact .flow-index a {
  display: block;
  white-space: nowrap;
  padding: 8px 13px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--steel);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-contact .flow-index a:hover,
.page-contact .flow-index a.is-active,
.page-contact .flow-index a[aria-current="true"] {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
}

.page-contact .flow-steps {
  min-width: 0;
  display: grid;
  gap: 0;
}

.page-contact .step {
  position: relative;
  padding: 24px 0 26px 58px;
  border-top: 1px solid var(--line);
  transition: border-color .24s var(--ease);
}

.page-contact .step:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .step.is-active {
  border-top-color: var(--lime);
}

.page-contact .step__no {
  position: absolute;
  left: 0;
  top: 24px;
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: -.02em;
  color: var(--lime);
}

.page-contact .step__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(18px, 2.1vw, 23px);
  color: var(--on-dark);
}

.page-contact .step p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--steel);
  max-width: 60ch;
}

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

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

@media (min-width: 960px) {
  .page-contact .flow-layout {
    grid-template-columns: 150px minmax(0, 1fr) minmax(0, 300px);
    align-items: start;
  }
  .page-contact .flow-index {
    position: sticky;
    top: 120px;
  }
  .page-contact .flow-index ol {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
  }
  .page-contact .flow-index li {
    border-top: 1px solid var(--line);
  }
  .page-contact .flow-index li:last-child {
    border-bottom: 1px solid var(--line);
  }
  .page-contact .flow-index a {
    border: 0;
    padding: 13px 0;
  }
  .page-contact .flow-index a:hover {
    background: transparent;
    color: var(--lime);
  }
  .page-contact .flow-index a.is-active,
  .page-contact .flow-index a[aria-current="true"] {
    background: transparent;
    color: var(--lime);
  }
  .page-contact .flow-media {
    position: sticky;
    top: 120px;
  }
}

@media (max-width: 420px) {
  .page-contact .gate {
    padding: 30px 20px 26px;
  }
  .page-contact .partner {
    padding: 26px 20px 28px;
  }
  .page-contact .step {
    padding-left: 46px;
  }
  .page-contact .step__no {
    font-size: 19px;
  }
}
<<<END>>>