.page-contact {
  --contact-rail-w: 320px;
  --contact-lead: rgba(242, 235, 221, 0.8);
  --contact-soft: rgba(242, 235, 221, 0.66);
  --contact-hair: rgba(44, 74, 64, 0.9);
  background: var(--ink-900);
  color: var(--sand);
  padding: clamp(20px, 3vw, 34px) 0 clamp(48px, 6vw, 84px);
}

.page-contact .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "intro"
    "rail"
    "body";
  gap: clamp(22px, 3.4vw, 32px);
  align-items: start;
}

.page-contact .page-contact__intro { grid-area: intro; min-width: 0; }
.page-contact .page-contact__rail { grid-area: rail; min-width: 0; }
.page-contact .page-contact__body { grid-area: body; min-width: 0; }

/* ---------- 首屏 ---------- */

.page-contact .page-contact__kicker {
  margin: 18px 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .page-contact__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 5.6vw, 56px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: var(--sand);
}

.page-contact .page-contact__lede {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.75;
  color: var(--contact-lead);
}

.page-contact .page-contact__hero-media {
  margin: clamp(20px, 3vw, 28px) 0 0;
  aspect-ratio: 24 / 10;
  overflow: hidden;
  background: var(--ink-800);
  position: relative;
}

.page-contact .page-contact__hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 26, 20, 0) 34%, rgba(6, 26, 20, 0.6));
  pointer-events: none;
}

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

/* ---------- 联系卡 ---------- */

.page-contact .contact-card {
  position: relative;
  background: var(--sand);
  color: var(--ink-900);
  padding: clamp(22px, 3vw, 30px);
  box-shadow: 0 18px 40px -28px rgba(0, 0, 0, 0.8);
}

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

.page-contact .contact-card__eyebrow {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #4a5c50;
}

.page-contact .contact-card__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 24px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-contact .contact-card__list {
  margin: 0;
  display: grid;
  gap: 16px;
}

.page-contact .contact-card__list > div {
  display: grid;
  gap: 4px;
}

.page-contact .contact-card__list dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: #4a5c50;
}

.page-contact .contact-card__list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-900);
  word-break: break-word;
}

.page-contact .contact-card__tel,
.page-contact .contact-card__mail {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--ink-900);
  text-decoration: none;
  display: inline-block;
  border-bottom: 1px solid rgba(6, 26, 20, 0.42);
  padding-bottom: 1px;
  word-break: break-word;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .contact-card__tel { font-size: clamp(19px, 2.2vw, 22px); letter-spacing: 0.01em; }
.page-contact .contact-card__mail { font-size: clamp(14px, 1.7vw, 15.5px); }

.page-contact .contact-card__tel:hover,
.page-contact .contact-card__mail:hover {
  color: var(--ink-700);
  border-color: var(--ink-700);
}

.page-contact .contact-card__tel:focus-visible,
.page-contact .contact-card__mail:focus-visible {
  outline: 2px solid var(--ink-800);
  outline-offset: 3px;
}

.page-contact .contact-card__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(6, 26, 20, 0.16);
  font-size: 13px;
  line-height: 1.62;
  color: #3a4a3f;
}

/* ---------- 内容区 ---------- */

.page-contact .page-contact__body {
  display: flex;
  flex-direction: column;
  gap: clamp(36px, 5.5vw, 64px);
}

.page-contact .contact-section {
  min-width: 0;
}

.page-contact .page-contact__body > .contact-section + .contact-section {
  border-top: 1px solid var(--contact-hair);
  padding-top: clamp(32px, 5vw, 56px);
}

.page-contact .contact-section__head {
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-contact .page-contact__index {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-section__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.3vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.012em;
  color: var(--sand);
}

.page-contact .contact-section__lede {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.4vw, 16.5px);
  line-height: 1.74;
  color: var(--contact-lead);
}

.page-contact .contact-section__foot {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--contact-soft);
}

.page-contact .contact-section__foot .text-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(92, 242, 208, 0.42);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .contact-section__foot .text-link:hover {
  color: var(--sand);
  border-color: var(--sand);
}

/* ---------- 媒体 ---------- */

.page-contact .contact-section__media {
  margin: 0 0 clamp(18px, 2.6vw, 24px);
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--ink-800);
  position: relative;
}

.page-contact .contact-section__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(92, 242, 208, 0.1) 0%, rgba(6, 26, 20, 0) 55%);
  pointer-events: none;
}

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

/* ---------- 标签页 ---------- */

.page-contact .page-contact__tabs {
  margin: 0;
}

.page-contact .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0 0 4px;
  padding: 0;
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .tabs__tab {
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.4;
  padding: 11px 14px;
  cursor: pointer;
  border-radius: var(--radius) var(--radius) 0 0;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .tabs__tab:hover {
  color: var(--sand);
  background: rgba(92, 242, 208, 0.07);
}

.page-contact .tabs__tab[aria-selected="true"] {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-contact .tabs__tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .tabs__panel {
  padding: clamp(16px, 2.4vw, 24px) 0 0;
  font-size: 15.5px;
  line-height: 1.74;
  color: var(--contact-lead);
}

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

.page-contact .tabs__panel:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

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

.page-contact .contact-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.62;
  color: var(--sand);
}

.page-contact .contact-points li::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--cyan);
}

/* ---------- 步骤 ---------- */

.page-contact .process-steps {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  border-left: 1px solid var(--contact-hair);
  display: flex;
  flex-direction: column;
}

.page-contact .process-step {
  position: relative;
  padding-bottom: 26px;
}

.page-contact .process-step:last-child {
  padding-bottom: 0;
}

.page-contact .process-step::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 180, 84, 0.16);
}

.page-contact .process-step__num {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-contact .process-step__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--sand);
}

.page-contact .process-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--contact-lead);
}

/* ---------- 覆盖数据 ---------- */

.page-contact .coverage-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  border: 1px solid var(--contact-hair);
  background: var(--contact-hair);
}

.page-contact .coverage-stats__item {
  background: var(--ink-900);
  padding: clamp(16px, 2.4vw, 22px);
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-contact .coverage-stats__value {
  font-family: var(--font-mono);
  font-size: clamp(28px, 3.8vw, 36px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--amber);
}

.page-contact .coverage-stats__suffix {
  font-size: 0.58em;
  margin-left: 2px;
  color: var(--amber);
}

.page-contact .coverage-stats__label {
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--sand);
}

.page-contact .coverage-stats__note {
  font-size: 12px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 准备清单 ---------- */

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

.page-contact .prep-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--contact-hair);
  cursor: pointer;
  transition: background-color var(--dur) var(--ease);
}

.page-contact .prep-item:hover {
  background: rgba(92, 242, 208, 0.05);
}

.page-contact .prep-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  border: 1px solid var(--mist);
  border-radius: 2px;
  background: transparent;
  position: relative;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .prep-item input[type="checkbox"]:checked {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .prep-item input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid var(--ink-900);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.page-contact .prep-item input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .prep-item span {
  font-size: 15px;
  line-height: 1.62;
  color: var(--sand);
}

/* ---------- 站点信息 ---------- */

.page-contact .site-facts {
  margin: 0;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .site-facts > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .site-facts dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .site-facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--sand);
  word-break: break-word;
}

.page-contact .site-facts dd a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(92, 242, 208, 0.42);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .site-facts dd a:hover {
  color: var(--sand);
  border-color: var(--sand);
}

/* ---------- 响应式 ---------- */

@media (min-width: 560px) {
  .page-contact .site-facts > div {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 14px;
  }
}

@media (min-width: 720px) {
  .page-contact .coverage-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-contact .process-steps {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px 28px;
    padding-left: 0;
    border-left: 0;
  }

  .page-contact .process-step {
    padding-bottom: 0;
    padding-top: 22px;
    border-top: 1px solid var(--contact-hair);
  }

  .page-contact .process-step::before {
    left: 0;
    top: -1px;
    width: 32px;
    height: 2px;
    border-radius: 0;
    box-shadow: none;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-layout {
    grid-template-columns: var(--contact-rail-w) minmax(0, 1fr);
    grid-template-areas:
      "rail intro"
      "rail body";
    gap: 36px clamp(28px, 4vw, 48px);
  }

  .page-contact .page-contact__rail {
    align-self: start;
    position: sticky;
    top: 24px;
  }

  .page-contact .page-contact__kicker {
    margin-top: 0;
  }
}

@media (min-width: 1080px) {
  .page-contact .process-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 28px 24px;
  }

  .page-contact .page-contact__title {
    max-width: 16ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .tabs__tab,
  .page-contact .prep-item,
  .page-contact .contact-card__tel,
  .page-contact .contact-card__mail,
  .page-contact .site-facts dd a {
    transition-duration: 0.01ms;
  }
}