.page-contact {
  display: block;
  padding-bottom: 24px;
}

/* ---------- 页面头部 ---------- */
.page-contact .contact-head {
  padding-top: 24px;
  padding-bottom: 8px;
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--c-mute);
}

.page-contact .breadcrumb__list li + li {
  position: relative;
  padding-left: 16px;
}

.page-contact .breadcrumb__list li + li::before {
  content: "›";
  position: absolute;
  left: 4px;
  top: -1px;
  color: var(--c-green);
}

.page-contact .breadcrumb__link {
  color: var(--c-mute);
  text-decoration: none;
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--c-cyan);
}

.page-contact .breadcrumb__current {
  color: var(--c-ivory);
  font-weight: 700;
}

.page-contact .contact-head__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
}

.page-contact .contact-head__mono {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-amber);
}

.page-contact .page-head__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 10vw, 62px);
  line-height: 1;
  letter-spacing: -0.012em;
  color: var(--c-ivory);
}

.page-contact .page-head__lede {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--c-text);
}

/* ---------- 章节公共 ---------- */
.page-contact .section {
  padding: 44px 0;
}

.page-contact .section__index {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--c-amber);
}

.page-contact .section__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 6.4vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.012em;
  color: var(--c-ivory);
}

.page-contact .section__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text);
}

/* ---------- 01 联络通道 ---------- */
.page-contact .contact-channels {
  padding-top: 32px;
}

.page-contact .channels {
  display: grid;
  gap: 22px;
}

.page-contact .channel-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .channel {
  position: relative;
  padding: 18px 18px 16px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  background: linear-gradient(155deg, rgba(20, 70, 58, 0.62), rgba(7, 26, 18, 0.86));
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--c-cyan);
}

.page-contact .channel--tel::before {
  background: var(--c-amber);
}

.page-contact .channel--visit::before {
  background: var(--c-clay);
}

.page-contact .channel__label {
  margin: 0 0 7px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--c-mute);
}

.page-contact .channel__value {
  margin: 0 0 9px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 4.1vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.005em;
  color: var(--c-ivory);
  overflow-wrap: anywhere;
}

.page-contact .channel__value a {
  color: var(--c-ivory);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 227, 193, 0.42);
  transition: color 140ms ease, border-color 140ms ease;
}

.page-contact .channel__value a:hover,
.page-contact .channel__value a:focus-visible {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-contact .channel__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-text);
}

.page-contact .channel__note {
  margin: 11px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--c-amber);
}

.page-contact .channels__visual {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, var(--c-pitch), var(--c-bg));
}

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

.page-contact .channels__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 26, 18, 0.04) 38%, rgba(7, 26, 18, 0.78));
  pointer-events: none;
}

.page-contact .channels__caption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 14px;
  margin: 0;
  z-index: 1;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: rgba(243, 240, 230, 0.84);
}

/* ---------- 02 反馈处理流程 ---------- */
.page-contact .flow-grid {
  display: grid;
  gap: 26px;
}

.page-contact .contact-pin {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--c-rock);
  padding: 20px 18px;
}

.page-contact .contact-pin__title {
  margin: 0 0 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

.page-contact .contact-pin__list {
  margin: 0;
  display: grid;
  gap: 15px;
}

.page-contact .contact-pin__row {
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .contact-pin__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .contact-pin__row dt {
  margin: 0 0 5px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-mute);
}

.page-contact .contact-pin__row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-ivory);
  overflow-wrap: anywhere;
}

.page-contact .contact-pin__row dd a {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 227, 193, 0.32);
}

.page-contact .contact-pin__row dd a:hover,
.page-contact .contact-pin__row dd a:focus-visible {
  border-bottom-color: var(--c-cyan);
}

.page-contact .flow-steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: flow;
}

.page-contact .flow-step {
  position: relative;
  padding: 16px 18px 16px 74px;
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  background: rgba(15, 44, 30, 0.72);
  transition: border-color 160ms ease, transform 160ms ease;
}

.page-contact .flow-step:hover,
.page-contact .flow-step:focus-within {
  border-color: rgba(79, 227, 193, 0.42);
  transform: translateX(3px);
}

.page-contact .flow-step__no {
  position: absolute;
  left: 18px;
  top: 17px;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  line-height: 1;
  color: var(--c-amber);
}

.page-contact .flow-step__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--c-ivory);
}

.page-contact .flow-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-text);
}

.page-contact .flow-step__more {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.68;
  color: var(--c-mute);
  transition: max-height 220ms ease, opacity 220ms ease, margin-top 220ms ease;
}

.page-contact .flow-step:hover .flow-step__more,
.page-contact .flow-step:focus-within .flow-step__more {
  max-height: 140px;
  opacity: 1;
  margin-top: 10px;
}

.page-contact .flow-figure {
  margin: 26px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--c-pitch);
}

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

/* ---------- 03 纠错与建议 ---------- */
.page-contact .report-tabs {
  margin-top: 24px;
}

.page-contact .report-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .report-tabs .tabs__btn {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--line);
  background: rgba(15, 44, 30, 0.78);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 700;
  padding: 9px 15px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}

.page-contact .report-tabs .tabs__btn:hover {
  color: var(--c-ivory);
  border-color: rgba(79, 227, 193, 0.5);
}

.page-contact .report-tabs .tabs__btn[aria-selected="true"] {
  background: var(--c-green);
  border-color: var(--c-green);
  color: var(--c-ivory);
}

.page-contact .report-tabs .tabs__panel {
  display: block;
  margin-top: 14px;
  padding: 20px 18px 18px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--c-clay);
  border-radius: var(--radius);
  background: var(--c-rock);
}

.page-contact .report-tabs .tabs__panel[hidden] {
  display: none;
}

.page-contact .report-panel__title {
  margin: 0 0 9px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--c-ivory);
}

.page-contact .report-panel__text {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-text);
}

.page-contact .report-need {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .report-need li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--c-ivory);
}

.page-contact .report-need li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 9px;
  height: 2px;
  background: var(--c-cyan);
}

/* ---------- 04 合作与内容沟通 ---------- */
.page-contact .partner-grid {
  margin-top: 24px;
  gap: 14px;
}

.page-contact .partner-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  background: var(--c-rock);
}

.page-contact .partner-card__tag {
  align-self: flex-start;
  margin: 0;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--c-cyan);
  color: var(--c-bg);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.page-contact .partner-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  letter-spacing: -0.01em;
  color: var(--c-ivory);
}

.page-contact .partner-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-text);
}

.page-contact .partner-card__list {
  list-style: none;
  margin: 2px 0 0;
  padding: 13px 0 0;
  border-top: 1px dashed var(--line-soft);
  display: grid;
  gap: 7px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-mute);
}

.page-contact .partner-card__list li {
  position: relative;
  padding-left: 15px;
}

.page-contact .partner-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-green);
}

/* ---------- 05 到访与路线 ---------- */
.page-contact .contact-visit {
  padding-top: 52px;
  padding-bottom: 50px;
}

.page-contact .visit-card {
  margin-top: 26px;
  padding: 24px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(30, 122, 71, 0.26), rgba(7, 26, 18, 0.92));
}

.page-contact .visit-card__label {
  margin: 0 0 9px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--c-cyan);
}

.page-contact .visit-card__addr {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 4.4vw, 19px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-ivory);
}

.page-contact .visit-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-text);
}

.page-contact .visit-panels {
  margin-top: 20px;
  display: grid;
  gap: 10px;
}

.page-contact .visit-panel {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: rgba(46, 59, 52, 0.45);
  overflow: hidden;
}

.page-contact .visit-panel .panel__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--c-ivory);
}

.page-contact .visit-panel .panel__summary::-webkit-details-marker {
  display: none;
}

.page-contact .visit-panel .panel__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-cyan);
  transition: transform 160ms ease;
}

.page-contact .visit-panel[open] .panel__summary::after {
  transform: rotate(45deg);
}

.page-contact .visit-panel .panel__body {
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text);
}

.page-contact .visit-panel .panel__body p {
  margin: 0;
}

/* ---------- 06 来信前可以先看 ---------- */
.page-contact .self-grid {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

.page-contact .self-link {
  display: block;
  padding: 20px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  background: rgba(15, 44, 30, 0.72);
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.page-contact .self-link:hover,
.page-contact .self-link:focus-visible {
  border-color: rgba(79, 227, 193, 0.55);
  background: rgba(20, 70, 58, 0.85);
  transform: translateY(-3px);
}

.page-contact .self-link__idx {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--c-amber);
}

.page-contact .self-link__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--c-ivory);
}

.page-contact .self-link__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-text);
}

/* ---------- 769px 起宽屏节奏 ---------- */
@media (min-width: 720px) {
  .page-contact .self-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .channel-list {
    gap: 14px;
  }

  .page-contact .visit-card {
    padding: 28px 26px;
  }

  .page-contact .visit-panel .panel__summary {
    padding: 16px 22px;
  }

  .page-contact .visit-panel .panel__body {
    padding: 0 22px 20px;
  }
}

/* ---------- 900px 起桌面双栏 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-head {
    padding-top: 34px;
  }

  .page-contact .section {
    padding: 62px 0;
  }

  .page-contact .contact-channels {
    padding-top: 44px;
  }

  .page-contact .channels {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: 40px;
    align-items: stretch;
  }

  .page-contact .channels__visual {
    height: 100%;
    min-height: 400px;
  }

  .page-contact .channels__visual img {
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .page-contact .flow-grid {
    grid-template-columns: 272px minmax(0, 1fr);
    align-items: start;
    gap: 42px;
  }

  .page-contact .contact-pin {
    position: sticky;
    top: 92px;
    padding: 24px 22px;
  }

  .page-contact .flow-step {
    padding: 18px 22px 18px 84px;
  }

  .page-contact .flow-step__no {
    left: 24px;
    top: 19px;
    font-size: 24px;
  }

  .page-contact .report-tabs .tabs__panel {
    padding: 26px 28px 24px;
  }

  .page-contact .partner-grid {
    gap: 18px;
  }

  .page-contact .partner-card {
    padding: 24px 22px;
  }

  .page-contact .contact-visit {
    padding-top: 78px;
    padding-bottom: 76px;
  }

  .page-contact .self-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }
}

/* ---------- 触屏：流程说明常显 ---------- */
@media (hover: none) {
  .page-contact .flow-step__more {
    max-height: none;
    opacity: 1;
    margin-top: 10px;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .flow-step,
  .page-contact .flow-step__more,
  .page-contact .self-link,
  .page-contact .channel__value a,
  .page-contact .visit-panel .panel__summary::after {
    transition: none;
  }

  .page-contact .flow-step:hover,
  .page-contact .flow-step:focus-within,
  .page-contact .self-link:hover,
  .page-contact .self-link:focus-visible {
    transform: none;
  }
}