.page-contact {
  --ct-pad: clamp(48px, 7vw, 104px);
  --ct-gap: clamp(18px, 3vw, 34px);
  --ct-radius: 2px;
  background: var(--ink-3);
}

.page-contact section {
  position: relative;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-contact h2 {
  font-size: clamp(1.55rem, 4.4vw, 2.7rem);
  line-height: 1.02;
}

.page-contact h3 {
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  line-height: 1.15;
}

.page-contact p {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(0.94rem, 1.9vw, 1.02rem);
  line-height: 1.75;
  color: var(--paper-70);
}

.page-contact .shell {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-contact .ct-hero {
  overflow: hidden;
  padding: clamp(96px, 15vw, 168px) 0 clamp(40px, 6vw, 76px);
  background:
    radial-gradient(115% 85% at 92% -12%, rgba(34, 211, 197, 0.16), transparent 62%),
    radial-gradient(90% 70% at 4% 110%, rgba(245, 158, 91, 0.1), transparent 66%),
    linear-gradient(158deg, var(--ink-2) 0%, var(--ink) 52%, var(--ink-3) 100%);
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: auto -12% -46% 48%;
  height: 68%;
  background: linear-gradient(120deg, transparent 32%, rgba(34, 211, 197, 0.09) 32.4%, rgba(34, 211, 197, 0.09) 100%);
  transform: skewX(-14deg);
  pointer-events: none;
}

.page-contact .ct-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: clamp(20px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--paper-50);
}

.page-contact .breadcrumb a {
  color: var(--paper-70);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .breadcrumb a:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-hero__title {
  font-size: clamp(2.1rem, 8vw, 4.5rem);
  line-height: 0.94;
  color: var(--paper);
}

.page-contact .lede {
  max-width: 44ch;
  margin-top: clamp(18px, 3vw, 26px);
  color: var(--paper-70);
  font-size: clamp(0.96rem, 2.1vw, 1.08rem);
}

.page-contact .ct-hero__figure {
  margin: 0;
  min-width: 0;
}

.page-contact .media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--hair-strong);
  background: var(--ink-2);
  box-shadow: var(--shadow-soft);
}

.page-contact .media--slant {
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
}

.page-contact .media__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}

.page-contact .media__tag {
  position: absolute;
  left: 12px;
  bottom: 18px;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: var(--yellow);
}

.page-contact .ct-direct {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: clamp(14px, 3vw, 26px);
  border-top: 1px solid var(--hair-strong);
}

.page-contact .ct-direct__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding: clamp(14px, 2.6vw, 22px) 0;
  border-bottom: 1px solid var(--hair);
}

.page-contact .ct-direct__label {
  flex: 0 0 auto;
  min-width: 68px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--paper-50);
}

.page-contact .ct-direct__mail,
.page-contact .ct-direct__tel {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .ct-direct__mail {
  font-size: clamp(1rem, 3.1vw, 2rem);
  color: var(--cyan);
}

.page-contact .ct-direct__tel {
  font-size: clamp(1.15rem, 3.6vw, 2.3rem);
  color: var(--orange);
}

.page-contact .ct-direct__mail:hover,
.page-contact .ct-direct__tel:hover {
  border-bottom-color: currentColor;
}

.page-contact .ct-direct__copy {
  flex: 0 0 auto;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--paper-70);
  background: transparent;
  border: 1px solid var(--hair-strong);
  border-radius: var(--ct-radius);
  cursor: pointer;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-contact .ct-direct__copy:hover,
.page-contact .ct-direct__copy:focus-visible {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .ct-direct__status {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--paper-35);
}

/* 联络通道 */
.page-contact .ct-channels {
  padding: var(--ct-pad) 0;
  background: var(--ink);
}

.page-contact .ct-channels__head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-contact .ct-channels__head p {
  margin-top: 16px;
}

.page-contact .ct-route {
  margin: 0 0 clamp(24px, 4vw, 40px);
}

.page-contact .ct-route__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .ct-route__line {
  stroke: var(--hair-strong);
  stroke-width: 1;
  stroke-dasharray: 3 6;
}

.page-contact .ct-route__node {
  fill: var(--ink);
  stroke: var(--cyan);
  stroke-width: 1.6;
}

.page-contact .ct-route__node--accent {
  fill: var(--orange);
  stroke: var(--orange);
}

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

.page-contact .ct-channel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3.4vw, 34px);
  background: var(--ink);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-contact .ct-channel:hover {
  background: var(--ink-2);
  box-shadow: inset 0 0 0 1px var(--cyan-soft);
}

.page-contact .ct-channel__no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-contact .ct-channel__desc {
  flex: 1 1 auto;
}

.page-contact .ct-channel__meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--paper-35);
}

.page-contact .ct-channel__link {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 158, 91, 0.4);
  overflow-wrap: anywhere;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-contact .ct-channel__link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* 应答时段 */
.page-contact .ct-window {
  padding: var(--ct-pad) 0;
  background: var(--paper);
}

.page-contact .ct-window h2 {
  color: var(--ink);
}

.page-contact .ct-window p {
  color: rgba(11, 43, 38, 0.78);
}

.page-contact .ct-window__grid {
  display: grid;
  gap: clamp(28px, 5vw, 64px);
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .ct-window__eyebrow {
  color: var(--teal);
  letter-spacing: 0.24em;
}

.page-contact .ct-window__lead p:not(.eyebrow) {
  margin-top: 18px;
  max-width: 46ch;
}

.page-contact .ct-link {
  display: inline-block;
  margin-top: 24px;
  padding-bottom: 4px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid var(--teal);
  transition: color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-contact .ct-link:hover {
  color: var(--ink);
  transform: translateX(4px);
}

.page-contact .ct-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: rgba(11, 43, 38, 0.16);
  border-top: 1px solid rgba(11, 43, 38, 0.16);
  border-bottom: 1px solid rgba(11, 43, 38, 0.16);
}

.page-contact .ct-steps__item {
  display: flex;
  gap: clamp(14px, 2.6vw, 22px);
  padding: clamp(16px, 2.4vw, 22px) clamp(10px, 2vw, 18px);
  background: var(--paper);
  transition: background 0.3s var(--ease);
}

.page-contact .ct-steps__item:hover {
  background: #fffaf0;
}

.page-contact .ct-steps__no {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--paper);
  background: var(--ink);
  border-radius: 50%;
}

.page-contact .ct-steps__body h3 {
  color: var(--ink);
  font-size: clamp(1rem, 2.2vw, 1.18rem);
}

.page-contact .ct-steps__body p {
  margin-top: 8px;
  font-size: clamp(0.9rem, 1.8vw, 0.98rem);
  color: rgba(11, 43, 38, 0.74);
}

/* 合作 */
.page-contact .ct-coop {
  padding: var(--ct-pad) 0;
  background:
    linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
}

.page-contact .ct-coop__head {
  max-width: 66ch;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-contact .ct-coop__head p {
  margin-top: 16px;
}

.page-contact .ct-coop__body {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .coop {
  position: relative;
  min-width: 0;
}

.page-contact .coop__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .coop__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-contact .coop__tab {
  padding: 9px 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--paper-70);
  border: 1px solid var(--hair-strong);
  border-radius: var(--ct-radius);
  cursor: pointer;
  transition: color 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .coop__tab:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .coop__input:checked ~ .coop__tabs .coop__tab {
  color: var(--paper);
  border-color: var(--hair);
}

.page-contact #coop-data:checked ~ .coop__tabs label[for="coop-data"],
.page-contact #coop-media:checked ~ .coop__tabs label[for="coop-media"],
.page-contact #coop-expert:checked ~ .coop__tabs label[for="coop-expert"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .coop__panel {
  display: none;
  padding: clamp(20px, 3.2vw, 32px);
  background: rgba(7, 26, 23, 0.62);
  border: 1px solid var(--hair-strong);
  border-left: 3px solid var(--cyan);
  border-radius: var(--ct-radius);
}

.page-contact #coop-data:checked ~ .coop__panels [data-panel="data"],
.page-contact #coop-media:checked ~ .coop__panels [data-panel="media"],
.page-contact #coop-expert:checked ~ .coop__panels [data-panel="expert"] {
  display: block;
}

.page-contact .coop__title {
  color: var(--paper);
}

.page-contact .coop__intro {
  margin-top: 12px;
}

.page-contact .coop__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .coop__list li {
  position: relative;
  padding-left: 20px;
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 1.8vw, 0.98rem);
  line-height: 1.65;
  color: var(--paper-70);
}

.page-contact .coop__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--orange);
}

.page-contact .coop__how {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--hair);
  font-size: 0.9rem;
  color: var(--paper-50);
}

.page-contact .ct-coop__figure {
  margin: 0;
  min-width: 0;
}

.page-contact .ct-coop__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--hair-strong);
  box-shadow: var(--shadow-soft);
}

.page-contact .ct-coop__figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--paper-35);
}

/* 地址与备案 */
.page-contact .ct-office {
  padding: var(--ct-pad) 0;
  background: var(--ink-3);
}

.page-contact .ct-office h2 {
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-contact .ct-office__grid {
  display: grid;
  gap: 1px;
  grid-template-columns: minmax(0, 1fr);
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-contact .ct-archive {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3.4vw, 34px);
  background: var(--paper);
  transition: background 0.3s var(--ease);
}

.page-contact .ct-archive:hover {
  background: #fffaef;
}

.page-contact .ct-archive__stamp {
  align-self: flex-start;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--paper);
  background: var(--teal);
}

.page-contact .ct-archive__big {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.1rem, 2.6vw, 1.5rem);
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .ct-archive__mono {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.4vw, 1.28rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .ct-archive__note {
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(11, 43, 38, 0.68);
}

/* 联系前准备 */
.page-contact .ct-prep {
  padding: var(--ct-pad) 0;
  background: var(--ink);
}

.page-contact .ct-prep__head {
  max-width: 60ch;
  margin-bottom: clamp(24px, 3.6vw, 38px);
}

.page-contact .ct-prep__head p {
  margin-top: 14px;
}

.page-contact .ct-prep__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  grid-template-columns: minmax(0, 1fr);
  background: var(--hair);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}

.page-contact .ct-prep__item {
  display: flex;
  gap: clamp(14px, 2.4vw, 20px);
  padding: clamp(16px, 2.6vw, 24px) 0;
  background: var(--ink);
  border-top: 1px solid transparent;
  transition: border-color 0.3s var(--ease), padding-left 0.3s var(--ease);
}

.page-contact .ct-prep__item:hover {
  border-top-color: var(--cyan-soft);
  padding-left: 10px;
}

.page-contact .ct-prep__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--orange);
  padding-top: 4px;
}

.page-contact .ct-prep__item h3 {
  font-size: clamp(0.98rem, 2.1vw, 1.12rem);
}

.page-contact .ct-prep__item p {
  margin-top: 6px;
  font-size: 0.9rem;
  line-height: 1.7;
}

/* 收束 */
.page-contact .ct-outro {
  padding: var(--ct-pad) 0 calc(var(--ct-pad) + 28px);
  background: linear-gradient(180deg, var(--ink-2) 0%, var(--ink-3) 100%);
  border-top: 1px solid var(--hair);
}

.page-contact .ct-outro__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .ct-outro__text p {
  margin-top: 14px;
  max-width: 48ch;
}

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

.page-contact .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  border-radius: var(--ct-radius);
  transition: transform 0.2s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .btn:active {
  transform: translateY(2px);
}

.page-contact .btn--accent {
  color: var(--ink);
  background: var(--orange);
  border: 1px solid var(--orange);
}

.page-contact .btn--accent:hover {
  background: var(--yellow);
  border-color: var(--yellow);
}

.page-contact .btn--line {
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--hair-strong);
}

.page-contact .btn--line:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .ct-outro__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  align-content: start;
  background: var(--hair);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}

.page-contact .ct-outro__links li {
  background: var(--ink-2);
}

.page-contact .ct-outro__links .footer-link {
  display: block;
  padding: 15px 18px;
  font-size: 0.92rem;
  color: var(--paper-70);
  text-decoration: none;
  transition: color 0.25s var(--ease), background 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.page-contact .ct-outro__links .footer-link:hover {
  color: var(--cyan);
  background: rgba(34, 211, 197, 0.08);
  padding-left: 24px;
}

@media (min-width: 700px) {
  .page-contact .ct-prep__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(22px, 4vw, 48px);
    row-gap: 0;
  }

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

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 1fr);
    grid-template-areas:
      "text figure"
      "direct figure";
    align-items: start;
    column-gap: clamp(30px, 4.5vw, 72px);
  }

  .page-contact .ct-hero__text {
    grid-area: text;
  }

  .page-contact .ct-hero__figure {
    grid-area: figure;
    align-self: center;
  }

  .page-contact .ct-direct {
    grid-area: direct;
  }

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

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

  .page-contact .ct-coop__body {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .ct-coop__figure {
    position: sticky;
    top: 110px;
  }

  .page-contact .ct-outro__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
}
<<<END>>>