.page-contact {
  --pc-rule: rgba(16, 22, 28, 0.12);
  --pc-body: #2f3944;
  --pc-sticky-top: calc(var(--header-h) + 28px);
  background: var(--paper);
}

.page-contact .breadcrumb {
  padding-block: 18px 4px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(16px, 3vw, 30px) 0 clamp(38px, 6vw, 76px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  right: -10%;
  top: 4%;
  width: min(52vw, 520px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle at 42% 42%, rgba(255, 107, 61, 0.18), rgba(255, 107, 61, 0) 68%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

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

.page-contact .contact-hero__code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: rgba(16, 22, 28, 0.42);
}

.page-contact .contact-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7vw, 72px);
  line-height: 1.06;
  letter-spacing: 0.02em;
  color: var(--ink);
  max-width: 15em;
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--pc-body);
}

.page-contact .contact-hero__steps {
  list-style: none;
  margin: clamp(10px, 2vw, 18px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .step-cue {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 22px 22px;
  background: var(--blue-deep);
  color: var(--paper);
  border-radius: var(--radius);
}

.page-contact .step-cue::after {
  content: "";
  position: absolute;
  right: -26px;
  bottom: -46px;
  width: 124px;
  height: 124px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 61, 0.34), rgba(255, 107, 61, 0) 70%);
  pointer-events: none;
}

.page-contact .step-cue__num {
  font-family: var(--font-mono);
  font-weight: 200;
  font-size: 34px;
  line-height: 1;
  color: var(--coral);
  letter-spacing: 0.04em;
}

.page-contact .step-cue__label {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-contact .step-cue__hint {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(247, 243, 236, 0.7);
}

/* ---------- 栏目抬头 ---------- */
.page-contact .section-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact .section-head__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--coral);
}

.page-contact .section-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-contact .section-head__note {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.72;
  color: #4a5460;
}

.page-contact .section-head--light .section-head__title {
  color: var(--paper);
}

.page-contact .section-head--light .section-head__note {
  color: rgba(247, 243, 236, 0.72);
}

/* ---------- 三步表单 + 侧栏 ---------- */
.page-contact .contact-flow__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-contact .contact-flow__aside {
  order: -1;
}

.page-contact .step-flow,
.page-contact .contact-flow__main {
  display: grid;
  gap: 14px;
}

.page-contact .step {
  background: var(--sand);
  border: 1px solid rgba(16, 22, 28, 0.08);
  border-left: 3px solid transparent;
  border-radius: var(--radius);
  transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-contact .step[open] {
  background: #fffdf9;
  border-left-color: var(--coral);
  box-shadow: 0 22px 38px -34px rgba(16, 22, 28, 0.6);
}

.page-contact .step__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 64px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
}

.page-contact .step__summary::-webkit-details-marker {
  display: none;
}

.page-contact .step__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--blue-deep);
  transition: transform 0.2s ease;
}

.page-contact .step[open] .step__summary::after {
  content: "–";
  color: var(--coral);
}

.page-contact .step__num {
  flex: none;
  padding: 4px 8px;
  background: var(--blue-deep);
  color: var(--coral);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.2;
  border-radius: 1px;
}

.page-contact .step__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.page-contact .step__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(16, 22, 28, 0.42);
}

.page-contact .step__body {
  display: grid;
  gap: 10px;
  padding: 0 18px 20px 18px;
}

.page-contact .step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--pc-body);
  max-width: 46ch;
}

.page-contact .flow-foot {
  margin-top: 8px;
  padding: 18px 20px;
  display: grid;
  gap: 14px;
  border-left: 1px solid var(--pc-rule);
}

.page-contact .flow-foot__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--pc-body);
  max-width: 44ch;
}

.page-contact .flow-foot .btn {
  justify-self: start;
}

/* 侧栏联络卡 */
.page-contact .reach-card {
  position: relative;
  padding: 24px 22px;
  background: var(--blue-deep);
  color: var(--paper);
  border-radius: var(--radius);
  box-shadow: -20px 24px 44px -38px rgba(16, 22, 28, 0.95);
}

.page-contact .reach-card__label {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--coral);
}

.page-contact .reach-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .reach-item {
  display: grid;
  gap: 4px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(247, 243, 236, 0.16);
}

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

.page-contact .reach-item__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(247, 243, 236, 0.6);
}

.page-contact .reach-item__value {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .reach-item__hint {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(247, 243, 236, 0.68);
}

.page-contact .reach-card__hours {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(247, 243, 236, 0.16);
  font-size: 13px;
  line-height: 1.6;
  color: rgba(247, 243, 236, 0.82);
}

.page-contact .reach-card__hours span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--coral);
}

.page-contact .reach-card__jump {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--coral-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 143, 107, 0.5);
}

.page-contact .reach-card__jump:hover {
  color: var(--paper);
}

/* ---------- 材料清单 ---------- */
.page-contact .materials {
  background: var(--mist-blue);
}

.page-contact .materials__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .material-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(16, 22, 28, 0.18);
}

.page-contact .material-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(16, 22, 28, 0.14);
}

.page-contact .material-list__num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--blue-deep);
  letter-spacing: 0.08em;
}

.page-contact .material-list__name {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-contact .material-list__desc {
  grid-column: 2;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--pc-body);
}

.page-contact .materials__figure {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-contact .media-frame__caption {
  font-size: 13px;
  line-height: 1.7;
  color: #4a5460;
}

/* ---------- 提交之后 ---------- */
.page-contact .after-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .after-node {
  position: relative;
  padding: 0 0 28px 26px;
  border-left: 1px solid var(--pc-rule);
}

.page-contact .after-node:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-contact .after-node::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--coral);
}

.page-contact .after-node__tag {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--coral);
}

.page-contact .after-node__title {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-contact .after-node__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--pc-body);
}

/* ---------- 联络渠道 ---------- */
.page-contact .channels {
  color: var(--paper);
}

.page-contact .channels__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

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

.page-contact .channel {
  padding: 20px 0;
  border-bottom: 1px solid var(--line-paper);
}

.page-contact .channel__label {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 8px;
  border: 1px solid rgba(255, 107, 61, 0.45);
  border-radius: 1px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--coral);
}

.page-contact .channel__value {
  margin: 0 0 6px;
  font-size: clamp(16px, 2.2vw, 20px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .channel__desc {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(247, 243, 236, 0.78);
}

.page-contact .channels__figure {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-contact .channels__figure .media-frame__caption {
  color: rgba(247, 243, 236, 0.68);
}

.page-contact .channels__note {
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-paper);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(247, 243, 236, 0.68);
  max-width: 58ch;
}

/* ---------- 收尾 ---------- */
.page-contact .contact-next__inner {
  display: grid;
  gap: 14px;
  padding-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--pc-rule);
}

.page-contact .contact-next__title {
  margin: 0;
  font-size: clamp(21px, 3vw, 30px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-contact .contact-next__lead {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pc-body);
}

.page-contact .contact-next__lead a {
  color: var(--blue-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--coral);
}

.page-contact .contact-next__links {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .step-cue:nth-child(2) {
    transform: translateY(16px);
  }

  .page-contact .step-cue:nth-child(3) {
    transform: translateY(32px);
  }

  .page-contact .contact-hero__steps {
    padding-bottom: 32px;
  }

  .page-contact .materials__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-contact .step__meta {
    margin-left: 4px;
  }
}

@media (min-width: 900px) {
  .page-contact .channels__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 56px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-flow__grid {
    grid-template-columns: minmax(0, 1fr) 332px;
    gap: clamp(36px, 5vw, 64px);
  }

  .page-contact .contact-flow__aside {
    order: 0;
    position: sticky;
    top: var(--pc-sticky-top);
  }

  .page-contact .reach-card::before {
    content: "";
    position: absolute;
    top: 42px;
    left: -18px;
    width: 14px;
    height: 1px;
    background: var(--coral);
  }

  .page-contact .reach-card::after {
    content: "";
    position: absolute;
    top: 39px;
    left: -24px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--coral);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .step,
  .page-contact .step__summary::after {
    transition: none;
  }

  .page-contact .step-cue:nth-child(2),
  .page-contact .step-cue:nth-child(3) {
    transform: none;
  }
}