.page-contact {
  --pc-gap: clamp(18px, 3vw, 34px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-contact [id="pc-checklist"],
.page-contact [id="pc-correction"] {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  padding-block: clamp(24px, 3.6vw, 44px) clamp(34px, 5vw, 64px);
}

.page-contact .pc-hero-main > .eyebrow {
  margin: 0;
  color: var(--sea);
}

.page-contact .pc-hero-main h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 4.6vw, 50px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 14px 0 0;
  max-width: 15em;
}

.page-contact .pc-lede {
  margin: 18px 0 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--graphite);
  max-width: 40em;
}

.page-contact .pc-contact-card {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(22px, 3vw, 32px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-contact .pc-contact-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ice), var(--lime));
}

.page-contact .pc-contact-eyebrow {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ice);
}

.page-contact .pc-phone {
  margin: 12px 0 4px;
  font-family: var(--font-mono);
  font-size: clamp(24px, 4.2vw, 34px);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .pc-contact-sub {
  margin: 0;
  font-size: 13px;
  color: var(--on-deep);
}

.page-contact .pc-contact-mail {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(185, 194, 198, 0.28);
  display: grid;
  gap: 6px;
}

.page-contact .pc-contact-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--silver);
}

.page-contact .pc-contact-value {
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .pc-contact-note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--on-deep);
}

/* ---------- 通用章节头 ---------- */
.page-contact .pc-types-section,
.page-contact .pc-checklist,
.page-contact .pc-channels,
.page-contact .pc-correction,
.page-contact .pc-partner {
  padding-block: clamp(30px, 5vw, 58px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-types-section > .pc-section-head > .eyebrow,
.page-contact .pc-check-body > .eyebrow,
.page-contact .pc-channels-copy > .eyebrow,
.page-contact .pc-correction > .eyebrow,
.page-contact .pc-partner .eyebrow {
  margin: 0;
  color: var(--sea);
}

.page-contact .pc-h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(23px, 3.1vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .pc-section-lede {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--graphite);
  max-width: 42em;
}

/* ---------- 反馈类型 ---------- */
.page-contact .pc-typelist {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 26px;
}

.page-contact .pc-type {
  display: grid;
  gap: 6px;
  align-content: start;
  padding: 18px 20px 22px;
  text-align: left;
  font-family: inherit;
  border: 0;
  cursor: pointer;
  background: rgba(27, 74, 107, 0.055);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line-soft);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
  transition: background 0.22s var(--ease), color 0.22s var(--ease),
    box-shadow 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-contact .pc-type:hover {
  background: rgba(27, 74, 107, 0.12);
}

.page-contact .pc-type:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--maple);
}

.page-contact .pc-type[aria-selected="true"] {
  background: var(--sea);
  color: var(--paper);
  box-shadow: inset 0 0 0 1px transparent;
}

.page-contact .pc-type-num {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--moss);
}

.page-contact .pc-type[aria-selected="true"] .pc-type-num {
  color: var(--lime);
}

.page-contact .pc-type-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.35;
}

.page-contact .pc-type-hint {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--graphite);
}

.page-contact .pc-type[aria-selected="true"] .pc-type-hint {
  color: var(--on-deep);
}

.page-contact .pc-panels {
  margin-top: 20px;
  padding-left: clamp(16px, 2.4vw, 26px);
  border-left: 3px solid var(--ice);
}

.page-contact .pc-panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .pc-panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--graphite);
  max-width: 46em;
}

.page-contact .pc-panel-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .pc-panel-list li {
  position: relative;
  padding-left: 20px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-contact .pc-panel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 10px;
  height: 1px;
  background: var(--sea);
}

.page-contact .pc-panel-more {
  margin: 16px 0 0;
}

/* ---------- 信息清单 ---------- */
.page-contact .pc-check-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.4vw, 40px);
  align-items: start;
}

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

.page-contact .pc-check-media figcaption,
.page-contact .pc-channels-media figcaption {
  margin-top: 10px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

.page-contact .pc-checks {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-contact .pc-check {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 2px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .pc-check:first-child {
  border-top: 1px dashed var(--line-soft);
}

.page-contact .pc-check input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  background: var(--paper);
  border: 1.5px solid var(--silver);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 5px), calc(100% - 5px) 100%, 0 100%);
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-contact .pc-check input:checked {
  background: var(--maple);
  border-color: var(--maple);
}

.page-contact .pc-check input:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--paper);
  border-bottom: 2px solid var(--paper);
  transform: rotate(42deg);
}

.page-contact .pc-check input:focus-visible {
  outline: 2px solid var(--sea);
  outline-offset: 2px;
}

.page-contact .pc-check label {
  display: grid;
  gap: 3px;
  cursor: pointer;
}

.page-contact .pc-check strong {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .pc-check span {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- 渠道 ---------- */
.page-contact .pc-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.6vw, 44px);
  align-items: center;
}

.page-contact .pc-channel-list {
  margin: 24px 0 0;
  display: grid;
  gap: 0;
}

.page-contact .pc-channel {
  padding: 15px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .pc-channel:first-child {
  border-top: 1px dashed var(--line-soft);
}

.page-contact .pc-channel dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--moss);
}

.page-contact .pc-channel dd {
  margin: 6px 0 0;
}

.page-contact .pc-channel-value {
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel-note {
  font-family: var(--font-body);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-contact .pc-channel-time {
  margin: 22px 0 0;
  padding: 14px 16px;
  background: rgba(27, 74, 107, 0.06);
  border-left: 3px solid var(--maple);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--graphite);
}

/* ---------- 纠错流程 ---------- */
.page-contact .pc-steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .pc-steps li {
  border-left: 2px solid var(--ice);
  padding-left: 18px;
}

.page-contact .pc-step-num {
  display: inline-block;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--maple);
  background: rgba(200, 69, 43, 0.09);
  padding: 3px 8px;
}

.page-contact .pc-steps h3 {
  margin: 10px 0 6px;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink);
}

.page-contact .pc-steps p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--graphite);
}

/* ---------- 合作 ---------- */
.page-contact .pc-partner-panel {
  background: var(--sea);
  color: var(--paper);
  padding: clamp(24px, 3.6vw, 44px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-contact .pc-partner-copy .eyebrow {
  color: var(--ice) !important;
}

.page-contact .pc-partner-panel .pc-h2 {
  color: var(--paper);
}

.page-contact .pc-partner-copy p {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--on-deep);
  max-width: 40em;
}

.page-contact .pc-partner-tags {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .pc-partner-tags li {
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 5px 12px;
  border: 1px solid rgba(244, 241, 234, 0.34);
  color: var(--paper);
}

.page-contact .pc-partner-hint {
  margin: 0 0 18px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--on-deep);
}

.page-contact .pc-partner-actions {
  align-self: center;
}

/* ---------- 尾注 ---------- */
.page-contact .pc-tail {
  margin-top: clamp(28px, 4vw, 46px);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--graphite);
}

.page-contact .pc-tail a {
  color: var(--sea);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .pc-tail a:hover {
  color: var(--maple);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .pc-typelist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

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

  .page-contact .pc-channels {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .pc-partner-panel {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 820px) {
  .page-contact .pc-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .pc-steps li {
    border-left: 0;
    border-top: 2px solid var(--ice);
    padding: 20px 22px 0 0;
  }

  .page-contact .pc-steps li + li {
    border-left: 1px dashed var(--line);
    padding-left: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-type,
  .page-contact .pc-check input {
    transition: none;
  }
}
<<<END>>>