.page-contact {
  --pc-rule: 1px solid var(--ink-600);
  --pc-rule-soft: 1px solid rgba(42, 62, 112, 0.62);
  --pc-panel: var(--ink-700);
  --pc-slab: var(--ink-800);
  display: block;
  background: var(--ink-900);
  color: var(--ink-050);
}

.page-contact .mono {
  font-family: var(--font-mono);
}

.page-contact .pc-kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ---------- 首屏 ---------- */

.page-contact .pc-hero {
  position: relative;
  padding-block: clamp(22px, 4vw, 40px) clamp(40px, 6vw, 76px);
  overflow: hidden;
  isolation: isolate;
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(93, 112, 149, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(93, 112, 149, 0.09) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  z-index: 0;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  top: -25%;
  right: -12%;
  width: 58%;
  height: 150%;
  background: linear-gradient(158deg, rgba(14, 27, 60, 0.95), rgba(7, 14, 34, 0) 72%);
  transform: skewX(-8deg);
  pointer-events: none;
  z-index: 0;
}

.page-contact .pc-hero__wrap {
  position: relative;
  z-index: 1;
}

.page-contact .pc-hero__crumb {
  margin-bottom: clamp(14px, 2.5vw, 24px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-500);
}

.page-contact .pc-hero__crumb a {
  color: var(--ink-300);
  text-decoration: none;
}

.page-contact .pc-hero__crumb a:hover {
  color: var(--accent);
}

.page-contact .pc-hero__frame {
  position: relative;
  border: var(--pc-rule);
  background: linear-gradient(180deg, rgba(14, 27, 60, 0.78), rgba(7, 14, 34, 0.28));
  padding: clamp(20px, 4vw, 52px);
}

.page-contact .pc-hero__corner {
  position: absolute;
  width: 16px;
  height: 16px;
  pointer-events: none;
}

.page-contact .pc-hero__corner--tl {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
}

.page-contact .pc-hero__corner--tr {
  top: -1px;
  right: -1px;
  border-top: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
}

.page-contact .pc-hero__corner--bl {
  bottom: -1px;
  left: -1px;
  border-bottom: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
}

.page-contact .pc-hero__corner--br {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .pc-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--ink-050);
}

.page-contact .pc-hero__lede {
  margin: 0 0 22px;
  max-width: 44ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--ink-300);
}

.page-contact .pc-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--ink-300);
}

.page-contact .pc-hero__facts li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-contact .pc-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 255, 61, 0.18);
}

.page-contact .pc-hero__figure {
  margin: 0;
  border: var(--pc-rule);
  background: var(--pc-panel);
  overflow: hidden;
}

.page-contact .pc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .pc-hero__figure .media-frame__caption {
  padding: 10px 14px 12px;
  border-top: var(--pc-rule-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-500);
}

/* ---------- 章节通用头 ---------- */

.page-contact .pc-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(22px, 3.5vw, 38px);
}

.page-contact .pc-head .section__note,
.page-contact .pc-head__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-300);
}

/* ---------- 三条通道 ---------- */

.page-contact .pc-channels {
  padding-block: clamp(40px, 6vw, 80px);
}

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

.page-contact .pc-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 20px 22px;
  border: var(--pc-rule);
  background: var(--pc-panel);
  transition: border-color 220ms ease;
}

.page-contact .pc-channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), rgba(200, 255, 61, 0));
}

.page-contact .pc-channel:nth-child(2)::before {
  background: linear-gradient(90deg, var(--violet), rgba(138, 92, 255, 0));
}

.page-contact .pc-channel:nth-child(3)::before {
  background: linear-gradient(90deg, var(--warn), rgba(255, 122, 47, 0));
}

.page-contact .pc-channel:hover {
  border-color: var(--ink-600);
}

.page-contact .pc-channel__num {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-500);
}

.page-contact .pc-channel__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-050);
}

.page-contact .pc-channel__value {
  margin: 0;
  font-size: clamp(16px, 1.7vw, 19px);
  font-weight: 500;
  line-height: 1.45;
  color: var(--accent);
  word-break: break-word;
}

.page-contact .pc-channel__value--text {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.62;
  color: var(--ink-050);
}

.page-contact .pc-channel__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-300);
}

.page-contact .pc-channel__meta {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: var(--pc-rule-soft);
  display: grid;
  gap: 8px;
}

.page-contact .pc-channel__meta .data-list__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  font-size: 12.5px;
  line-height: 1.6;
}

.page-contact .pc-channel__meta .data-list__key {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--ink-500);
}

.page-contact .pc-channel__meta .data-list__val {
  margin: 0;
  text-align: right;
  color: var(--ink-300);
}

/* ---------- 四类来意 ---------- */

.page-contact .pc-triage {
  position: relative;
  padding-block: clamp(40px, 6vw, 76px);
  background: var(--pc-slab);
  overflow: hidden;
}

.page-contact .pc-triage::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(118deg, rgba(138, 92, 255, 0.12), rgba(138, 92, 255, 0) 48%);
  pointer-events: none;
}

.page-contact .pc-triage .wrap {
  position: relative;
}

.page-contact .pc-triage__rows {
  display: grid;
  gap: 0;
  border-top: var(--pc-rule);
}

.page-contact .pc-triage__row {
  display: grid;
  gap: 14px;
  padding: clamp(20px, 3vw, 30px) 0;
  border-bottom: var(--pc-rule-soft);
}

.page-contact .pc-triage__type {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.page-contact .pc-triage__type h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 700;
  line-height: 1.36;
  letter-spacing: -0.01em;
  color: var(--ink-050);
}

.page-contact .pc-triage__body p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-300);
}

.page-contact .pc-triage__path {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--accent-dim);
  font-size: 12px;
  line-height: 1.75;
  letter-spacing: 0.05em;
  color: var(--ink-500);
}

.page-contact .pc-triage__path span {
  margin-right: 8px;
  color: var(--accent-dim);
}

/* ---------- 准备清单 ---------- */

.page-contact .pc-prep {
  padding-block: clamp(40px, 6vw, 76px);
}

.page-contact .pc-prep__wrap {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .pc-prep__lede {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-300);
}

.page-contact .pc-prep__link {
  font-size: 14px;
  color: var(--accent);
}

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

.page-contact .pc-prep__item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 14px 16px;
  border: var(--pc-rule-soft);
  background: var(--pc-slab);
  align-items: start;
  transition: border-color 200ms ease;
}

.page-contact .pc-prep__item:hover {
  border-color: var(--accent-dim);
}

.page-contact .pc-prep__box {
  grid-row: span 2;
  width: 15px;
  height: 15px;
  margin-top: 4px;
  border: 1.5px solid var(--ink-500);
  position: relative;
}

.page-contact .pc-prep__item:hover .pc-prep__box {
  border-color: var(--accent-dim);
}

.page-contact .pc-prep__label {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink-050);
}

.page-contact .pc-prep__hint {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-500);
}

/* ---------- 响应时段 ---------- */

.page-contact .pc-window {
  position: relative;
  padding-block: clamp(40px, 6vw, 76px);
  background: var(--pc-slab);
}

.page-contact .pc-window__grid {
  align-items: center;
}

.page-contact .pc-window__lede {
  margin: 0;
  max-width: 48ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-300);
}

.page-contact .pc-window__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: var(--pc-rule-soft);
}

.page-contact .pc-window__list li {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 14px;
  padding: 15px 0;
  border-bottom: var(--pc-rule-soft);
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--ink-300);
}

.page-contact .pc-window__list li > .mono {
  padding-top: 2px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--accent-dim);
}

.page-contact .pc-window__figure {
  margin: 0;
  border: var(--pc-rule);
  background: var(--pc-panel);
  overflow: hidden;
}

.page-contact .pc-window__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

.page-contact .pc-window__figure .media-frame__caption {
  padding: 10px 14px 12px;
  border-top: var(--pc-rule-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-500);
}

/* ---------- 合作 ---------- */

.page-contact .pc-coop {
  position: relative;
  padding-block: clamp(44px, 6vw, 84px);
  overflow: hidden;
}

.page-contact .pc-coop__directions {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
  margin-bottom: clamp(30px, 4vw, 52px);
}

.page-contact .pc-coop__dir {
  padding: 20px 18px;
  border: var(--pc-rule-soft);
  background: rgba(22, 38, 79, 0.6);
}

.page-contact .pc-coop__dir h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-050);
}

.page-contact .pc-coop__dir p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--ink-300);
}

.page-contact .pc-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .pc-steps__item {
  position: relative;
  padding: 22px 18px 26px;
  border: var(--pc-rule);
  background: var(--pc-panel);
}

.page-contact .pc-steps__item::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 44px;
  height: 3px;
  background: var(--accent);
  transform: skewX(-30deg);
}

.page-contact .pc-steps__num {
  display: block;
  margin-bottom: 12px;
  font-size: 26px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--accent-dim);
}

.page-contact .pc-steps__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-050);
}

.page-contact .pc-steps__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--ink-300);
}

/* ---------- 直达 ---------- */

.page-contact .pc-direct {
  padding-block: clamp(40px, 6vw, 72px);
  background: var(--pc-slab);
}

.page-contact .pc-direct__list {
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .pc-direct__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border: var(--pc-rule-soft);
  background: var(--ink-700);
  color: var(--ink-050);
  font-size: 15px;
  line-height: 1.6;
  text-decoration: none;
  transition: border-color 200ms ease, background 200ms ease;
}

.page-contact .pc-direct__item:hover,
.page-contact .pc-direct__item:focus-visible {
  border-color: var(--accent-dim);
  background: var(--ink-800);
}

.page-contact .pc-direct__arrow {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  color: var(--accent);
  transition: transform 200ms ease;
}

.page-contact .pc-direct__item:hover .pc-direct__arrow {
  transform: translateX(4px);
}

/* ---------- 收尾 ---------- */

.page-contact .pc-cta {
  padding-block: clamp(36px, 5vw, 76px) clamp(56px, 8vw, 108px);
}

.page-contact .pc-cta__inner {
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  padding: clamp(24px, 4vw, 46px);
  border: var(--pc-rule);
  background: linear-gradient(135deg, var(--ink-800), var(--ink-700));
  position: relative;
  overflow: hidden;
}

.page-contact .pc-cta__inner::after {
  content: "";
  position: absolute;
  top: -60%;
  right: -20%;
  width: 46%;
  height: 220%;
  background: linear-gradient(150deg, rgba(200, 255, 61, 0.1), rgba(200, 255, 61, 0) 70%);
  transform: skewX(-8deg);
  pointer-events: none;
}

.page-contact .pc-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 36px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink-050);
}

.page-contact .pc-cta__lede {
  margin: 0;
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-300);
}

.page-contact .pc-cta__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  position: relative;
  z-index: 1;
}

/* ---------- 断点 ---------- */

@media (min-width: 760px) {
  .page-contact .pc-channels__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 820px) {
  .page-contact .pc-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 40ch);
    align-items: end;
    justify-content: space-between;
    gap: 24px;
  }

  .page-contact .pc-head__note {
    text-align: right;
  }

  .page-contact .pc-triage__row {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: start;
  }

  .page-contact .pc-window__list li {
    grid-template-columns: 92px minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-contact .pc-prep__wrap {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

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

@media (min-width: 860px) {
  .page-contact .pc-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    padding-bottom: 40px;
  }

  .page-contact .pc-steps__item {
    border-right: 0;
  }

  .page-contact .pc-steps__item:last-child {
    border-right: var(--pc-rule);
  }

  .page-contact .pc-steps__item:nth-child(2) {
    margin-top: -14px;
  }

  .page-contact .pc-steps__item:nth-child(3) {
    margin-top: -28px;
  }

  .page-contact .pc-steps__item:nth-child(4) {
    margin-top: -42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-channel,
  .page-contact .pc-prep__item,
  .page-contact .pc-direct__item,
  .page-contact .pc-direct__arrow {
    transition: none;
  }

  .page-contact .pc-direct__item:hover .pc-direct__arrow {
    transform: none;
  }

  .page-contact .pc-steps__item:nth-child(2),
  .page-contact .pc-steps__item:nth-child(3),
  .page-contact .pc-steps__item:nth-child(4) {
    margin-top: 0;
  }
}
<<<END>>>