.page-contact {
  --pc-gap: 16px;
  --pc-block-rot: 0deg;
  background-color: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--aqua);
  outline-offset: 3px;
}

.page-contact .pc-p {
  margin: 0;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.78;
  color: var(--paper-70);
}

.page-contact .pc-lead {
  margin: 0;
  max-width: 32em;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper-70);
}

.page-contact .pc-h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5.4vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .pc-head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(26px, 5vw, 48px);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding: clamp(24px, 5vw, 56px) 0 clamp(44px, 8vw, 104px);
  background:
    radial-gradient(78% 62% at 94% -12%, rgba(51, 224, 208, 0.16), transparent 68%),
    radial-gradient(52% 44% at -6% 104%, rgba(255, 138, 61, 0.1), transparent 72%),
    var(--ink);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: clamp(24px, 5vw, 44px);
  margin-top: clamp(20px, 4vw, 40px);
}

.page-contact .pc-hero__title {
  margin: 10px 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 9.6vw, 92px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .pc-hero__em {
  display: inline-block;
  color: var(--lime);
  transform: rotate(-1.2deg);
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .pc-signal {
  position: relative;
  padding: clamp(20px, 4vw, 30px);
  background: linear-gradient(158deg, var(--ink-3), var(--ink-2) 62%);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  border-radius: var(--radius);
  transform: rotate(1.2deg);
}

.page-contact .pc-signal__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .pc-signal__mail {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 4.2vw, 21px);
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--lime);
  overflow-wrap: anywhere;
}

.page-contact .pc-signal__meta {
  display: grid;
  gap: 0;
  margin: 18px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .pc-signal__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
}

.page-contact .pc-signal__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .pc-signal__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper);
}

.page-contact .pc-signal__note {
  margin: 16px 0 0;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper-50);
}

/* ---------- 01 合作方向 ---------- */
.page-contact .pc-directions {
  padding: clamp(44px, 8vw, 104px) 0 clamp(36px, 6vw, 72px);
  background: var(--ink);
}

.page-contact .pc-blocks {
  display: grid;
  gap: var(--pc-gap);
  padding: 4px 2px 16px;
}

.page-contact .pc-block {
  --pc-block-rot: 0deg;
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(20px, 4vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  transform: rotate(var(--pc-block-rot));
  transition: transform var(--step) var(--ease), border-color var(--step) var(--ease), background-color var(--step) var(--ease);
}

.page-contact .pc-block::before {
  content: "";
  display: block;
  width: 42px;
  height: 3px;
  background: var(--lime);
  margin-bottom: 4px;
}

.page-contact .pc-block:hover,
.page-contact .pc-block:focus-within {
  transform: rotate(var(--pc-block-rot)) translateY(-4px);
  border-color: var(--line-strong);
}

.page-contact .pc-block--a {
  background: linear-gradient(162deg, var(--ink-3), var(--ink-2) 78%);
}

.page-contact .pc-block--b {
  background: rgba(124, 255, 178, 0.08);
  border-color: rgba(124, 255, 178, 0.32);
}

.page-contact .pc-block--b::before {
  background: var(--aqua);
}

.page-contact .pc-block--c {
  background: var(--ink-2);
  border-color: rgba(51, 224, 208, 0.3);
}

.page-contact .pc-block--c::before {
  background: var(--aqua);
}

.page-contact .pc-block--d {
  background: rgba(255, 138, 61, 0.1);
  border-color: rgba(255, 138, 61, 0.34);
}

.page-contact .pc-block--d::before {
  background: var(--orange);
}

.page-contact .pc-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 4.6vw, 26px);
  line-height: 1.22;
  color: var(--paper);
}

.page-contact .pc-block__text {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-70);
}

.page-contact .pc-block__fit {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .pc-blocks__note {
  margin: clamp(20px, 4vw, 36px) 0 0;
  padding: 16px 0 0 18px;
  border-top: 1px solid var(--line-soft);
  border-left: 2px solid var(--amber);
  max-width: 44em;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-70);
}

/* ---------- 02 官方联络通道 ---------- */
.page-contact .pc-channels {
  padding: clamp(44px, 8vw, 104px) 0;
  background: var(--ink-2);
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-channels__grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
}

.page-contact .pc-mailboard {
  position: relative;
  margin: 0 0 clamp(22px, 4vw, 32px);
  padding: clamp(18px, 3.4vw, 26px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(124, 255, 178, 0.06);
}

.page-contact .pc-mailboard::after {
  content: "";
  position: absolute;
  right: -6px;
  bottom: -6px;
  width: 26px;
  height: 26px;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.page-contact .pc-mailboard__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .pc-mailboard__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 4.4vw, 26px);
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .pc-channels__media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-3);
  clip-path: polygon(0 0, 100% 3%, 100% 100%, 0 97%);
}

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

.page-contact .pc-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .pc-facts__item {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-facts__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .pc-facts__value {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .pc-facts__value--mono {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.01em;
  color: var(--lime);
  overflow-wrap: anywhere;
}

.page-contact .pc-facts__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  color: var(--paper-50);
}

/* ---------- 03 邮件写法 ---------- */
.page-contact .pc-subject {
  padding: clamp(44px, 8vw, 104px) 0;
  background: var(--ink);
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-subject__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .pc-head .pc-p + .pc-p {
  margin-top: 12px;
}

.page-contact .pc-templates {
  display: grid;
  gap: 14px;
}

.page-contact .pc-template {
  display: grid;
  gap: 8px;
  padding: 18px 18px 20px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  transition: border-color var(--step) var(--ease), transform var(--step) var(--ease);
}

.page-contact .pc-template:hover,
.page-contact .pc-template:focus-within {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-contact .pc-template--key {
  border-style: solid;
  border-color: rgba(255, 138, 61, 0.5);
  background: rgba(255, 138, 61, 0.08);
}

.page-contact .pc-template__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-contact .pc-template__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--lime);
  overflow-wrap: anywhere;
}

.page-contact .pc-template--key .pc-template__title {
  color: var(--orange);
}

.page-contact .pc-template__text {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-70);
}

/* ---------- 04 合作流程 ---------- */
.page-contact .pc-path {
  padding: clamp(44px, 8vw, 104px) 0;
  background: linear-gradient(180deg, var(--ink-2), var(--ink) 88%);
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-path__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .pc-path__steps {
  position: relative;
}

.page-contact .pc-path__line {
  display: none;
  color: var(--aqua);
}

.page-contact .pc-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .pc-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(7, 26, 21, 0.55);
  transition: transform var(--step) var(--ease), border-color var(--step) var(--ease), background-color var(--step) var(--ease);
}

.page-contact .pc-step:hover,
.page-contact .pc-step:focus-within {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  background: var(--ink-3);
}

.page-contact .pc-step__num {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.1;
  color: var(--lime);
}

.page-contact .pc-step__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .pc-step__text {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-70);
}

.page-contact .pc-path__media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-3);
}

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

/* ---------- 05 服务范围 ---------- */
.page-contact .pc-region {
  padding: clamp(44px, 8vw, 104px) 0 clamp(36px, 6vw, 72px);
  background: var(--ink-2);
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-region__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .pc-region__aside {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: clamp(20px, 3.6vw, 30px);
  border: 1px solid var(--line);
  border-top: 3px solid var(--orange);
  border-radius: var(--radius);
  background: var(--ink-3);
}

.page-contact .pc-region__aside .bs-btn {
  justify-self: start;
  margin-top: 6px;
}

.page-contact .pc-region__aside-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .pc-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: clamp(26px, 5vw, 48px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .pc-strip__item {
  overflow-wrap: anywhere;
}

/* ---------- 延伸阅读 ---------- */
.page-contact .pc-more {
  padding: clamp(40px, 7vw, 88px) 0 clamp(52px, 9vw, 108px);
  background: var(--ink);
}

.page-contact .pc-more .pc-h2 {
  margin-bottom: clamp(22px, 4vw, 36px);
}

.page-contact .pc-more__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .pc-more__link {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--aqua);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color var(--step) var(--ease), background-color var(--step) var(--ease), transform var(--step) var(--ease);
}

.page-contact .pc-more__link:hover,
.page-contact .pc-more__link:focus-visible {
  border-color: var(--line-strong);
  border-left-color: var(--lime);
  background: var(--ink-2);
  transform: translateY(-2px);
}

.page-contact .pc-more__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.01em;
  color: var(--lime);
}

.page-contact .pc-more__desc {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-70);
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-contact {
    --pc-gap: 20px;
  }

  .page-contact .pc-lead {
    font-size: 17px;
  }

  .page-contact .pc-blocks {
    grid-template-columns: repeat(12, 1fr);
    gap: clamp(16px, 2.4vw, 26px);
    padding: 18px 0 34px;
  }

  .page-contact .pc-block--a {
    grid-column: span 7;
    --pc-block-rot: -1.4deg;
  }

  .page-contact .pc-block--b {
    grid-column: span 5;
    --pc-block-rot: 1.6deg;
    margin-top: 26px;
  }

  .page-contact .pc-block--c {
    grid-column: span 5;
    --pc-block-rot: 1.1deg;
    margin-top: 6px;
  }

  .page-contact .pc-block--d {
    grid-column: span 7;
    --pc-block-rot: -1.8deg;
    margin-top: -6px;
  }

  .page-contact .pc-templates {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .pc-template--key {
    grid-column: span 2;
  }

  .page-contact .pc-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .pc-more__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .pc-more__grid .pc-more__item:last-child {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }

  .page-contact .pc-channels__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-contact .pc-subject__grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .page-contact .pc-path__grid {
    grid-template-columns: 6fr 6fr;
    align-items: start;
  }

  .page-contact .pc-path__steps {
    padding-left: 42px;
  }

  .page-contact .pc-path__line {
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: 34px;
    height: 100%;
  }

  .page-contact .pc-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .pc-path__media {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-contact .pc-region__grid {
    grid-template-columns: 6fr 6fr;
    align-items: start;
  }

  .page-contact .pc-more__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-more__grid .pc-more__item:last-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-block,
  .page-contact .pc-step,
  .page-contact .pc-template,
  .page-contact .pc-more__link {
    transition: none;
  }

  .page-contact .pc-block:hover,
  .page-contact .pc-block:focus-within,
  .page-contact .pc-step:hover,
  .page-contact .pc-step:focus-within,
  .page-contact .pc-template:hover,
  .page-contact .pc-more__link:hover {
    transform: none;
  }
}
<<<END>>>