.page-contact {
  --pc-gap: clamp(14px, 2.4vw, 22px);
  background: var(--void);
  color: var(--white-hot);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(24px, 5vw, 42px) 0 clamp(34px, 6vw, 62px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -220px;
  left: -14%;
  width: 640px;
  height: 640px;
  background: radial-gradient(circle, rgba(255, 107, 26, 0.2), transparent 68%);
  pointer-events: none;
}

.page-contact .contact-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .eyebrow {
  margin-top: clamp(20px, 3vw, 34px);
  color: var(--sand);
}

.page-contact h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.07;
  letter-spacing: -0.02em;
  color: var(--white-hot);
  text-shadow: 0 0 22px rgba(255, 107, 26, 0.28);
}

.page-contact .contact-hero__lead {
  max-width: 44ch;
  margin: 16px 0 0;
  font-size: 16.5px;
  line-height: 1.78;
  color: #C9C4BC;
}

/* ---------- 来意分岔选择器 ---------- */
.page-contact .fork {
  margin-top: clamp(28px, 4.5vw, 44px);
}

.page-contact .fork__list {
  position: relative;
  display: grid;
  gap: var(--pc-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .fork__item {
  display: flex;
}

.page-contact .fork__link {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 7px;
  width: 100%;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease),
    box-shadow 0.2s var(--ease);
}

.page-contact .fork__link:hover,
.page-contact .fork__link:focus-visible {
  border-color: var(--line-warm);
  transform: translateY(-3px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.46);
  outline: none;
}

.page-contact .fork__link:focus-visible {
  box-shadow: 0 0 0 2px var(--spark);
}

.page-contact .fork__num {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--spark);
}

.page-contact .fork__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18.5px;
  line-height: 1.35;
  color: var(--white-hot);
}

.page-contact .fork__note {
  font-size: 14px;
  line-height: 1.62;
  color: var(--gray-mid);
}

/* ---------- 通用区块 ---------- */
.page-contact .section {
  padding: clamp(40px, 7vw, 76px) 0;
}

.page-contact .section--panel {
  background: var(--panel);
}

.page-contact .section--dark {
  background: var(--void);
}

.page-contact .section--paper {
  background: var(--paper);
  color: #16181C;
}

.page-contact h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.8vw, 36px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--white-hot);
}

.page-contact .section--paper h2 {
  color: #16181C;
}

.page-contact .section--paper .section-label {
  color: var(--ember-deep);
}

.page-contact .section-intro {
  max-width: 46ch;
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--gray-mid);
}

.page-contact .section--paper .section-intro {
  color: #4A4E55;
}

.page-contact .media-frame {
  margin: 0;
}

.page-contact .contact-visual {
  margin-top: clamp(24px, 4vw, 36px);
}

.page-contact .media-frame__cap {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--gray-mid);
}

.page-contact .media-frame__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
  object-fit: cover;
}

/* ---------- 官方联系渠道 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: var(--pc-gap);
  margin-top: clamp(24px, 4vw, 36px);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--void);
}

.page-contact .channel-card--accent {
  border-color: var(--line-warm);
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.16), rgba(184, 52, 31, 0.05));
}

.page-contact .channel-card__label {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--sand);
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--spark);
  word-break: break-word;
  user-select: all;
}

.page-contact .channel-card__value--text {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 400;
  color: var(--white-hot);
  user-select: text;
}

.page-contact .channel-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-mid);
}

/* ---------- 商务合作 ---------- */
.page-contact .coop-grid {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
  margin-top: clamp(24px, 4vw, 34px);
}

.page-contact .panel-box {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line-warm);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(184, 52, 31, 0.14), rgba(26, 29, 35, 0.92));
}

.page-contact .panel-box__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--white-hot);
}

.page-contact .checklist {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .checklist li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.72;
  color: #CFCAC2;
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ember);
}

.page-contact .checklist strong {
  color: var(--white-hot);
  font-weight: 600;
}

.page-contact .panel-box__foot {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.72;
  color: var(--gray-mid);
}

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

.page-contact .dir-list li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
}

.page-contact .dir-list__num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--spark);
  padding-top: 2px;
}

.page-contact .dir-list h3 {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 600;
  color: var(--white-hot);
}

.page-contact .dir-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--gray-mid);
}

/* ---------- 数据纠错 ---------- */
.page-contact .submit-list {
  display: grid;
  gap: 14px;
  margin: clamp(24px, 4vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .submit-list li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 14px;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: #FFFDFA;
  box-shadow: 0 1px 3px rgba(20, 22, 26, 0.08);
}

.page-contact .submit-list__num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--ember-deep);
  padding-top: 1px;
}

.page-contact .submit-list h3 {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 600;
  color: #16181C;
}

.page-contact .submit-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: #5A5E66;
}

.page-contact .paper-foot {
  margin: clamp(22px, 3.5vw, 30px) 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--ember);
  font-size: 15px;
  line-height: 1.75;
  color: #3D4148;
}

/* ---------- 处理时效 ---------- */
.page-contact .timing-grid {
  display: grid;
  gap: var(--pc-gap);
  margin-top: clamp(24px, 4vw, 34px);
}

.page-contact .timing-card {
  position: relative;
  padding: 22px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
}

.page-contact .timing-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  width: 42px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--ember), var(--copper));
}

.page-contact .timing-card__head {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--white-hot);
}

.page-contact .timing-card__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--gray-mid);
}

/* ---------- 运营主体与备案 ---------- */
.page-contact .op-grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-contact .op-meta {
  display: grid;
  gap: 12px;
  margin: clamp(22px, 3.5vw, 30px) 0 0;
}

.page-contact .op-meta > div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-contact .op-meta dt {
  font-size: 14px;
  color: var(--gray-mid);
}

.page-contact .op-meta dd {
  margin: 0;
  font-size: 14.5px;
  text-align: right;
  color: var(--white-hot);
}

.page-contact .op-meta dd:last-child {
  font-family: var(--font-mono);
  color: var(--spark);
}

.page-contact .op-note {
  margin: 22px 0 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--gray-mid);
}

.page-contact .legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-contact .op-grid__figure {
  order: -1;
}

/* ---------- 常见问题 ---------- */
.page-contact .faq {
  margin-top: clamp(22px, 3.5vw, 32px);
  border-top: 1px solid var(--line);
}

.page-contact .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-contact .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white-hot);
  cursor: pointer;
  list-style: none;
}

.page-contact .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-contact .faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--ember);
  transition: transform 0.2s var(--ease);
}

.page-contact .faq-item[open] summary::after {
  content: "–";
  color: var(--spark);
}

.page-contact .faq-item summary:focus-visible {
  outline: 2px solid var(--spark);
  outline-offset: 3px;
}

.page-contact .faq-item p {
  max-width: 62ch;
  margin: 0;
  padding: 0 0 20px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--gray-mid);
}

.page-contact .faq-foot {
  margin: clamp(24px, 4vw, 34px) 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray-mid);
}

.page-contact .faq-foot a {
  color: var(--spark);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cool);
}

.page-contact .faq-foot a:hover,
.page-contact .faq-foot a:focus-visible {
  color: var(--ember);
  border-bottom-color: var(--ember);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .fork__list {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .submit-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 720px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .timing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .coop-grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: start;
  }

  .page-contact .op-grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
  }

  .page-contact .op-grid__figure {
    order: 0;
  }
}

@media (min-width: 1040px) {
  .page-contact .fork__list {
    grid-template-columns: repeat(4, 1fr);
    padding-top: 26px;
  }

  .page-contact .fork__list::before {
    content: "";
    position: absolute;
    top: 0;
    left: 4%;
    right: 4%;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--copper), var(--ember) 52%, var(--spark));
  }

  .page-contact .fork__link::before {
    content: "";
    position: absolute;
    top: -26px;
    left: 50%;
    width: 2px;
    height: 26px;
    background: var(--ember);
    transform: translateX(-50%);
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .timing-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fork__link,
  .page-contact .faq-item summary::after {
    transition: none;
  }

  .page-contact .fork__link:hover,
  .page-contact .fork__link:focus-visible {
    transform: none;
  }
}