.page-contact {
  --c-gap: clamp(16px, 3vw, 28px);
  --c-soft: rgba(110, 166, 184, 0.12);
  --c-tint: rgba(14, 42, 53, 0.72);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-contact .contact-top {
  padding-top: clamp(104px, 13vw, 148px);
}

.page-contact .section + .section {
  margin-top: clamp(52px, 7vw, 92px);
}

.page-contact a {
  color: var(--blue);
  text-decoration: none;
}

.page-contact a:hover,
.page-contact a:focus-visible {
  color: var(--signal);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-contact .contact-hero__body h1 {
  margin: 14px 0 0;
  max-width: 640px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .contact-hero__lede {
  margin: 18px 0 0;
  max-width: 620px;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.78;
}

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

.page-contact .contact-hero__actions .btn {
  flex: 1 1 200px;
  text-align: center;
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: 30px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 18px;
}

.page-contact .contact-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 14px;
  border-left: 2px solid var(--c-soft);
}

.page-contact .contact-hero__num {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-contact .contact-hero__cap {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-contact .contact-hero__board {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  background-color: var(--panel);
  background-image:
    linear-gradient(var(--c-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-soft) 1px, transparent 1px);
  background-size: 32px 32px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--signal);
}

.page-contact .contact-hero__board-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper);
}

.page-contact .contact-hero__board-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .contact-hero__board-list a {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  grid-template-areas:
    "code name"
    "code go";
  gap: 2px 10px;
  padding: 12px 14px;
  background: var(--ink-800);
  transition: background var(--dur-1) var(--ease);
}

.page-contact .contact-hero__board-list a:hover,
.page-contact .contact-hero__board-list a:focus-visible {
  background: var(--ink-700);
}

.page-contact .contact-hero__code {
  grid-area: code;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--signal);
}

.page-contact .contact-hero__name {
  grid-area: name;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
}

.page-contact .contact-hero__go {
  grid-area: go;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--paper);
}

.page-contact .contact-hero__board-foot {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 通道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: var(--c-gap);
  margin-top: clamp(24px, 4vw, 36px);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3vw, 28px);
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: rgba(255, 122, 61, 0.5);
  background: var(--ink-700);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 38px;
  height: 2px;
  background: var(--signal);
}

.page-contact .channel-card__code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--signal);
}

.page-contact .channel-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.35;
  font-weight: 650;
  color: var(--text);
}

.page-contact .channel-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .channel-card__action {
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.page-contact .channel-card__action a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-contact .channel-card__action a::after {
  content: " →";
}

/* ---------- 路由图 ---------- */
.page-contact .route-figure {
  margin: clamp(28px, 4vw, 42px) 0 0;
  border: 1px solid var(--line);
  background: var(--ink-900);
}

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

.page-contact .route-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--paper);
}

/* ---------- 联系信息账本 ---------- */
.page-contact .ledger {
  display: grid;
  gap: 1px;
  margin-top: clamp(22px, 3vw, 34px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ledger__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--panel);
}

.page-contact .ledger__cell--accent {
  background: var(--ink-900);
  box-shadow: inset 2px 0 0 var(--signal);
}

.page-contact .ledger__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper);
}

.page-contact .ledger__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--text);
  word-break: break-word;
}

.page-contact .ledger__value--text {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
}

.page-contact .ledger__value a {
  color: var(--text);
  border-bottom: 1px solid rgba(110, 166, 184, 0.5);
}

.page-contact .ledger__value a:hover,
.page-contact .ledger__value a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-contact .ledger__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-dim);
}

/* ---------- 到访 ---------- */
.page-contact .visit-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-contact .visit-media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-900);
}

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

.page-contact .visit-body > p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .visit-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .visit-list li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 16px;
  background: var(--panel);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-contact .visit-list__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 2px;
}

.page-contact .visit-note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--teal);
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 合作 ---------- */
.page-contact .partner-grid {
  display: grid;
  gap: var(--c-gap);
  margin-top: clamp(24px, 4vw, 36px);
}

.page-contact .partner-card {
  padding: clamp(20px, 3vw, 28px);
  background: var(--panel);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .partner-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 650;
  line-height: 1.4;
  color: var(--text);
}

.page-contact .partner-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-contact .partner-card__more {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

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

.page-contact .partner-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--signal);
}

.page-contact .partner-card--timeline {
  background: var(--ink-900);
}

.page-contact .stage-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .stage-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  background: var(--ink-700);
  font-size: 14px;
  color: var(--text);
}

.page-contact .stage-list__n {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-contact .partner-card__foot {
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 响应 ---------- */
.page-contact .response-head {
  max-width: 720px;
}

.page-contact .response-lede {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .response-track {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-contact .response-step {
  position: relative;
  padding: 18px 20px 18px 24px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-contact .response-step::before {
  content: "";
  position: absolute;
  top: 22px;
  left: -5px;
  width: 9px;
  height: 9px;
  border-radius: var(--radius-pill);
  background: var(--signal);
}

.page-contact .response-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--signal);
  margin-bottom: 6px;
}

.page-contact .response-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 650;
  line-height: 1.4;
  color: var(--text);
}

.page-contact .response-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .response-foot {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
  margin-top: clamp(24px, 3vw, 34px);
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-contact .response-foot p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .contact-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .contact-hero__actions .btn {
    flex: 0 0 auto;
  }
}

@media (min-width: 720px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .ledger {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .partner-card--timeline {
    grid-column: 1 / -1;
  }
  .page-contact .stage-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .response-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
  }
  .page-contact .response-step {
    border: 0;
    padding: 22px 20px;
  }
  .page-contact .response-step::before {
    top: 0;
    left: 20px;
    width: 24px;
    height: 2px;
    border-radius: 0;
  }
  .page-contact .response-foot {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .page-contact .response-foot p {
    max-width: 60ch;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: clamp(28px, 4vw, 56px);
  }
  .page-contact .visit-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }
  .page-contact .visit-media {
    position: sticky;
    top: 100px;
  }
  .page-contact .ledger {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .partner-card--timeline {
    grid-column: auto;
  }
  .page-contact .stage-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
<<<END>>>