/* ============================================================
   page-contact · 联系我们
   作用域：.page-contact
   ============================================================ */

.page-contact {
  --cc-accent: var(--signal);
  --cc-pad: clamp(48px, 7vw, 88px);
  display: block;
  background: var(--paper-050);
  color: var(--ink-900);
}

.page-contact .breadcrumb {
  padding-top: clamp(16px, 2.4vw, 30px);
  font-size: 13px;
}

.page-contact h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.6vw, 2.7rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  color: var(--ink-900);
}

.page-contact h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .index-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--cc-accent);
  margin: 0 0 12px;
}

.page-contact .index-label--ondark {
  color: var(--sand);
}

.page-contact .section {
  padding-block: var(--cc-pad);
}

.page-contact .section-head {
  max-width: 62ch;
  margin-bottom: clamp(26px, 3.6vw, 44px);
}

.page-contact .section-lede {
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-700);
}

/* ---------- 页面头部 ---------- */
.page-contact .contact-head {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
  padding-top: clamp(22px, 3.2vw, 40px);
  margin-bottom: clamp(40px, 6vw, 76px);
}

.page-contact .page-head__title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5.4vw, 4rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}

.page-contact .page-head__lede {
  margin: 0;
  max-width: 60ch;
  font-size: 1rem;
  line-height: 1.82;
  color: var(--ink-700);
}

.page-contact .contact-head__status {
  display: grid;
  gap: 2px;
  padding: 22px 24px 24px;
  background: var(--ink-900);
  border-left: 3px solid var(--cc-accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.page-contact .contact-head__status-label {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(245, 247, 249, 0.58);
}

.page-contact .contact-head__status-label:first-child {
  margin-top: 0;
}

.page-contact .contact-head__status-value {
  margin: 0;
  font-size: 1rem;
  color: var(--paper-050);
}

.page-contact .contact-head__status-value--season {
  display: flex;
  align-items: center;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .contact-head__status-value--season::before {
  content: "";
  width: 9px;
  height: 9px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--cc-accent);
  flex: 0 0 auto;
}

.page-contact .contact-head__status-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-dark);
  font-size: 13px;
  color: var(--mint);
}

/* ---------- 渠道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .channel-card {
  position: relative;
  padding: 26px 22px 28px;
  background: var(--paper-050);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}

.page-contact .channel-card:hover {
  border-color: var(--cc-accent);
}

.page-contact .channel-card__kind {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--slate);
}

.page-contact .channel-card__title {
  margin: 0 0 10px;
  font-size: 1.3rem;
}

.page-contact .channel-card__value {
  margin: 0 0 14px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
  font-size: 0.94rem;
  color: var(--ink-700);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__desc {
  margin: 0 0 16px;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--ink-700);
}

.page-contact .channel-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-contact .channel-card__list li {
  position: relative;
  padding-left: 15px;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--slate);
}

.page-contact .channel-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 1px;
  background: var(--cc-accent);
}

.page-contact .channel-visual {
  margin: clamp(34px, 5vw, 60px) 0 0;
  border: 1px solid var(--line);
  background: var(--paper-100);
}

.page-contact .channel-visual img,
.page-contact .prep-visual img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 工作台：清单 + 提交结构 ---------- */
.page-contact .contact-workbench {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(34px, 5vw, 60px);
}

.page-contact .prep__lede,
.page-contact .submit-guide__lede {
  margin: 0 0 clamp(20px, 2.6vw, 30px);
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--ink-700);
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-contact .prep-list > li {
  border-bottom: 1px solid var(--line);
}

.page-contact .prep-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 2px;
  font-size: 0.93rem;
  line-height: 1.65;
  color: var(--ink-700);
  cursor: pointer;
}

.page-contact .prep-item input {
  -webkit-appearance: none;
  appearance: none;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  position: relative;
  background: var(--paper-050);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-contact .prep-item input:hover {
  border-color: var(--ink-500);
}

.page-contact .prep-item input:checked {
  background: var(--mint-050);
  border-color: var(--mint);
}

.page-contact .prep-item input:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--mint);
  border-bottom: 2px solid var(--mint);
  transform: rotate(42deg);
}

.page-contact .prep-item input:focus-visible {
  outline: 2px solid var(--cc-accent);
  outline-offset: 2px;
}

.page-contact .prep-item span {
  transition: color 180ms var(--ease);
}

.page-contact .prep-item input:checked + span {
  color: var(--slate);
}

.page-contact .prep-visual {
  margin: clamp(26px, 3.4vw, 38px) 0 0;
  border: 1px solid var(--line);
  background: var(--paper-050);
}

/* 四段式提交结构 */
.page-contact .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-contact .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .step__no {
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cc-accent);
}

.page-contact .step__title {
  margin: 0 0 5px;
  font-size: 1.05rem;
}

.page-contact .step__body p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--ink-700);
}

.page-contact .feedback-panel {
  margin-top: clamp(26px, 3.4vw, 40px);
  padding: 24px 22px 26px;
  background: var(--paper-050);
  border-left: 3px solid var(--mint);
  border-radius: var(--radius);
}

.page-contact .feedback-panel__title {
  margin: 0 0 16px;
  font-size: 1.05rem;
}

.page-contact .feedback-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .feedback-list li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--ink-700);
}

.page-contact .feedback-list .mono {
  font-size: 0.78rem;
  color: var(--ink-900);
  padding-top: 4px;
}

.page-contact .feedback-panel__more {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-contact .feedback-panel__more a {
  color: var(--ink-700);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--cc-accent);
  text-decoration-thickness: 2px;
}

/* ---------- 深色分区 ---------- */
.page-contact .contact-dark {
  background: var(--ink-900);
  color: var(--paper-050);
  padding-block: var(--cc-pad);
}

.page-contact .dark-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(38px, 5vw, 64px);
}

.page-contact .contact-dark h2 {
  color: var(--paper-050);
}

.page-contact .dark-col > p {
  margin: 0 0 20px;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(245, 247, 249, 0.76);
}

.page-contact .dark-col a {
  color: var(--signal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .dark-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-contact .dark-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.93rem;
  line-height: 1.74;
  color: rgba(245, 247, 249, 0.82);
}

.page-contact .dark-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 1px;
  background: var(--signal);
}

.page-contact .dark-note {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-dark);
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(245, 247, 249, 0.66);
}

.page-contact .coop-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  border-top: 1px solid var(--line-dark);
}

.page-contact .coop-list li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: 0.93rem;
  line-height: 1.72;
  color: rgba(245, 247, 249, 0.86);
}

.page-contact .coop-list .mono {
  padding-top: 4px;
  font-size: 0.78rem;
  color: var(--sand);
}

/* ---------- 主体信息 ---------- */
.page-contact .subject-info {
  border-top: 1px solid var(--line-strong);
}

.page-contact .subject-info__lede {
  margin: 0 0 26px;
  max-width: 58ch;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--ink-700);
}

.page-contact .subject-info .ticks {
  margin-bottom: 6px;
}

.page-contact .subject-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .subject-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .subject-item dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-contact .subject-item dd {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--ink-900);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

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

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

  .page-contact .subject-item {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .dark-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-contact .dark-col + .dark-col {
    padding-left: clamp(28px, 4vw, 52px);
    border-left: 1px solid var(--line-dark);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-contact .contact-workbench {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }
}

@media (max-width: 420px) {
  .page-contact .feedback-list li {
    grid-template-columns: minmax(0, 1fr);
    gap: 3px;
  }

  .page-contact .coop-list li {
    grid-template-columns: 34px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .prep-item input,
  .page-contact .prep-item span {
    transition: none;
  }
}
<<<END>>>