.page-contact {
  --pc-cut: 16px;
  --pc-gap: clamp(1.25rem, 3vw, 2rem);
}

.page-contact img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-contact .pc-hero {
  padding-top: clamp(1.25rem, 3vw, 2rem);
}

.page-contact .pc-hero__grid,
.page-contact .pc-contact-grid {
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.page-contact .pc-hero__lead .lede {
  max-width: 34em;
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.5rem;
}

.page-contact .pc-hero__media {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel-2);
  box-shadow: var(--shadow-panel);
}

.page-contact .pc-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 14 / 9;
}

/* 章节头 */
.page-contact .pc-head {
  margin-bottom: clamp(1.25rem, 3vw, 1.75rem);
  max-width: 46rem;
}

.page-contact .pc-head--tight {
  margin-bottom: 1rem;
}

.page-contact .pc-head h2 {
  margin: .35rem 0 0;
}

.page-contact .pc-head p:not(.eyebrow) {
  margin: .65rem 0 0;
  color: var(--fog);
  font-size: var(--fs-sm);
}

/* 通道筛选与面板 */
.page-contact .pc-filters {
  margin: 0 0 1.35rem;
  flex-wrap: wrap;
  gap: .5rem;
}

.page-contact .pc-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .pc-channel {
  position: relative;
  padding: 1.5rem 1.35rem 1.6rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: inset 0 0 0 8px rgba(11, 20, 16, .35), 0 20px 44px -34px #000;
  transition: border-color 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
}

.page-contact .pc-channel:hover {
  border-color: #3f6350;
  box-shadow: inset 0 0 0 8px rgba(11, 20, 16, .2), 0 24px 48px -32px #000;
}

.page-contact .pc-channel::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 22px;
  height: 22px;
  background: linear-gradient(135deg, transparent 50%, rgba(198, 241, 53, .18) 50%);
  border-bottom-right-radius: var(--radius);
  transition: width 200ms var(--ease-out), height 200ms var(--ease-out);
}

.page-contact .pc-channel:hover::after {
  width: 28px;
  height: 28px;
}

.page-contact .pc-channel__top {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: 1.05rem;
}

.page-contact .pc-channel__dot {
  width: .5rem;
  height: .5rem;
  flex: none;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px var(--lime-soft);
}

.page-contact .pc-channel--fix .pc-channel__dot {
  background: var(--orange);
  box-shadow: 0 0 0 4px var(--orange-soft);
}

.page-contact .pc-channel--acct .pc-channel__dot {
  background: var(--electric);
  box-shadow: 0 0 0 4px var(--electric-soft);
}

.page-contact .pc-channel__hours {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--fog);
  letter-spacing: .02em;
}

.page-contact .pc-channel h3 {
  margin: 0 0 .55rem;
  font-size: 1.25rem;
  color: var(--paper);
}

.page-contact .pc-channel p {
  margin: 0 0 1rem;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--fog);
}

.page-contact .pc-channel__list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: .45rem;
}

.page-contact .pc-channel__list li {
  position: relative;
  padding-left: 1.05rem;
  font-size: var(--fs-sm);
  color: var(--paper);
}

.page-contact .pc-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 1px;
  background: var(--line);
}

.page-contact .pc-channel__link {
  display: inline-block;
  font-size: var(--fs-sm);
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 214, 245, .35);
  padding-bottom: 1px;
  transition: border-color 200ms var(--ease-out), color 200ms var(--ease-out);
}

.page-contact .pc-channel__link:hover {
  color: var(--paper);
  border-color: var(--paper);
}

/* 联系方式卡 */
.page-contact .pc-contact-card {
  padding: clamp(1.35rem, 3.5vw, 2.25rem);
}

.page-contact .pc-contact-row {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-contact-key {
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  color: var(--clay);
}

.page-contact .pc-contact-val {
  font-size: 1rem;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .pc-contact-val--mail {
  font-family: var(--font-mono);
  font-size: clamp(.85rem, 2.6vw, 1rem);
  color: var(--electric);
  text-decoration: none;
  word-break: break-all;
}

.page-contact .pc-contact-val--mail:hover {
  text-decoration: underline;
}

.page-contact .pc-contact-tel {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 5vw, 1.75rem);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  color: var(--orange);
}

.page-contact .pc-contact-note {
  margin: 1.1rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
  font-size: var(--fs-xs);
  line-height: 1.9;
  color: var(--fog);
}

/* 准备清单 */
.page-contact .pc-checklist {
  padding: clamp(1.25rem, 3.5vw, 1.85rem);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(23, 58, 43, .7), rgba(16, 37, 28, .95));
}

.page-contact .pc-checklist h3 {
  margin: 0 0 .5rem;
  font-size: 1.05rem;
  color: var(--paper);
}

.page-contact .pc-checklist__intro {
  margin: 0 0 1.15rem;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--fog);
}

.page-contact .pc-checklist ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: pc-check;
}

.page-contact .pc-checklist li {
  counter-increment: pc-check;
  position: relative;
  padding-left: 2.15rem;
  padding-bottom: .95rem;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--fog);
}

.page-contact .pc-checklist li:last-child {
  padding-bottom: 0;
}

.page-contact .pc-checklist li::before {
  content: counter(pc-check, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .1em;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--lime);
}

.page-contact .pc-checklist li strong {
  display: block;
  margin-bottom: .1rem;
  font-weight: 500;
  color: var(--paper);
}

/* 合作流程 */
.page-contact .pc-flow {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 2.75rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow-panel);
}

.page-contact .pc-flow__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .16;
  pointer-events: none;
}

.page-contact .pc-flow__head {
  position: relative;
  z-index: 1;
  max-width: 42rem;
}

.page-contact .pc-flow__head h2 {
  margin: .35rem 0 .5rem;
}

.page-contact .pc-flow__head p:not(.eyebrow) {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--fog);
}

.page-contact .pc-flow__track {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

.page-contact .pc-step {
  position: relative;
  padding-top: 1.6rem;
}

.page-contact .pc-step::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--line);
}

.page-contact .pc-step::after {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(198, 241, 53, .14);
}

.page-contact .pc-step:last-child::after {
  background: var(--orange);
  box-shadow: 0 0 0 4px var(--orange-soft);
}

.page-contact .pc-step__no {
  display: block;
  margin-bottom: .45rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  color: var(--orange);
}

.page-contact .pc-step h3 {
  margin: 0 0 .35rem;
  font-size: 1rem;
  color: var(--paper);
}

.page-contact .pc-step p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--fog);
}

/* 响应节奏 */
.page-contact .pc-response {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
}

.page-contact .pc-response__block {
  padding-left: 1.1rem;
  border-left: 2px solid var(--line);
}

.page-contact .pc-response__block:nth-child(2) {
  border-left-color: var(--clay);
}

.page-contact .pc-response__block h3 {
  margin: 0 0 .4rem;
  font-size: 1rem;
  color: var(--paper);
}

.page-contact .pc-response__block p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--fog);
}

/* 纠错入口 */
.page-contact .pc-fix {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background:
    linear-gradient(135deg, rgba(255, 138, 61, .1), transparent 62%),
    var(--panel);
  border-color: var(--line);
}

.page-contact .pc-fix__main h2 {
  margin: .35rem 0 .6rem;
}

.page-contact .pc-fix__main > p:not(.eyebrow) {
  margin: 0 0 1.25rem;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--fog);
  max-width: 38em;
}

.page-contact .pc-fix__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
  align-content: start;
}

.page-contact .pc-fix__list li {
  position: relative;
  padding: .7rem .9rem .7rem 1.75rem;
  font-size: var(--fs-sm);
  color: var(--paper);
  background: rgba(11, 20, 16, .45);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.page-contact .pc-fix__list li::before {
  content: "";
  position: absolute;
  left: .85rem;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--orange);
}

/* 页尾斜切带 */
.page-contact .pc-strip {
  position: relative;
  margin-top: clamp(2rem, 5vw, 3.5rem);
  padding: clamp(2rem, 5vw, 3rem) 0 clamp(4rem, 9vw, 6rem);
  background: linear-gradient(120deg, #132a20, var(--ink));
  border-top: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 72%);
}

.page-contact .pc-strip__inner {
  display: flex;
  flex-direction: column;
  gap: .55rem;
}

.page-contact .pc-strip__label {
  margin: 0;
  font-size: var(--fs-xs);
  letter-spacing: .16em;
  color: var(--fog);
}

.page-contact .pc-strip__email {
  align-self: flex-start;
  max-width: 100%;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3.6vw, 1.85rem);
  letter-spacing: .01em;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 241, 53, .4);
  padding-bottom: 2px;
  word-break: break-all;
  transition: color 200ms var(--ease-out), border-color 200ms var(--ease-out);
}

.page-contact .pc-strip__email:hover {
  color: var(--paper);
  border-color: var(--paper);
}

.page-contact .pc-strip__note {
  margin: .35rem 0 0;
  font-size: var(--fs-xs);
  line-height: 1.9;
  color: var(--fog);
  max-width: 40em;
}

.page-contact .pc-strip__link {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 214, 245, .35);
}

.page-contact .pc-strip__link:hover {
  color: var(--paper);
  border-color: var(--paper);
}

@media (min-width: 720px) {
  .page-contact .pc-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-channel--fix {
    margin-top: 1.85rem;
  }

  .page-contact .pc-channel--acct {
    margin-top: .9rem;
  }

  .page-contact .pc-flow__track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .pc-step {
    padding-right: 1.1rem;
  }

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

  .page-contact .pc-fix {
    grid-template-columns: 1.45fr 1fr;
    align-items: center;
    gap: 2rem;
  }
}

@media (min-width: 960px) {
  .page-contact .pc-hero__media img {
    aspect-ratio: 14 / 9;
  }

  .page-contact .pc-contact-card {
    min-height: 100%;
  }
}
<<<END>>>