.page-contact {
  --form-bg: #FBF7F0;
  --form-line: #B6A587;
  --sub-text: #A9BDB5;
}

.page-contact .breadcrumb {
  padding-block: 18px 0;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  margin-top: 18px;
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
  background: var(--ink-800);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: 28px;
  padding-block: clamp(26px, 5vw, 54px);
}

.page-contact .contact-hero__main {
  border-left: 4px solid var(--mint);
  padding-left: clamp(16px, 3vw, 26px);
}

.page-contact .contact-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(30px, 6vw, 54px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--frost);
}

.page-contact .contact-hero__lede {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--sub-text);
}

.page-contact .contact-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--frost);
}

.page-contact .contact-hero__facts .mono {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--mint);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .hero-index {
  border: 2px solid var(--line);
  background: var(--ink-950);
  box-shadow: var(--shadow-hard);
}

.page-contact .hero-index__title {
  margin: 0;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.page-contact .hero-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .hero-index__item + .hero-index__item {
  border-top: 1px solid var(--line);
}

.page-contact .hero-index__link {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  text-decoration: none;
  color: var(--frost);
  transition: background-color 180ms var(--ease), color 180ms var(--ease);
}

.page-contact .hero-index__link:hover,
.page-contact .hero-index__link:focus-visible {
  background: var(--ink-800);
  color: var(--mint);
}

.page-contact .hero-index__num {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mint-deep);
}

.page-contact .hero-index__label {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-contact .hero-index__note {
  margin: 0;
  padding: 14px 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .hero-index__note .mono {
  color: var(--frost);
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-section {
  padding-block: clamp(42px, 7vw, 84px);
}

.page-contact .contact-section--band {
  background: var(--ink-800);
  border-block: 1px solid var(--line);
}

.page-contact .contact-section--tight {
  padding-block: clamp(32px, 5vw, 56px);
}

.page-contact .section-head {
  margin-bottom: clamp(22px, 4vw, 36px);
}

.page-contact .section-head__title {
  max-width: 30ch;
}

/* ---------- 合作类型 ---------- */
.page-contact .type-list {
  display: grid;
  gap: 18px;
}

.page-contact .type-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 20px 22px;
  border: 2px solid var(--line);
  background: var(--ink-950);
  overflow: hidden;
}

.page-contact .type-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: var(--mint);
}

.page-contact .type-card--amber::before {
  background: var(--amber);
}

.page-contact .type-card--deep::before {
  background: var(--mint-deep);
}

.page-contact .type-card--paper::before {
  background: var(--paper);
}

.page-contact .type-card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .type-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--frost);
}

.page-contact .type-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--sub-text);
}

.page-contact .type-card__fit {
  margin: 4px 0 16px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .type-card .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 咨询表单 ---------- */
.page-contact .inquiry {
  padding: clamp(18px, 4vw, 34px);
}

.page-contact .inquiry__grid {
  display: grid;
  gap: 26px;
}

.page-contact .inquiry__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-contact .inquiry__intro {
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.7;
  color: #5A4F3E;
}

.page-contact .req {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber-deep);
  border: 1px solid var(--amber-deep);
  padding: 0 4px;
  vertical-align: 2px;
}

.page-contact .field-grid {
  display: grid;
  gap: 16px;
}

.page-contact .field {
  margin: 0 0 16px;
  border: 0;
  padding: 0;
}

.page-contact .field--choice {
  border-top: 1px dashed var(--form-line);
  padding-top: 16px;
}

.page-contact .field__label {
  display: block;
  margin-bottom: 7px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-900);
  padding: 0;
}

.page-contact .field__input {
  width: 100%;
  min-height: 48px;
  padding: 11px 13px;
  background: var(--form-bg);
  border: 2px solid var(--form-line);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-900);
}

.page-contact .field__input::placeholder {
  color: #8C7F69;
}

.page-contact .field__input--area {
  min-height: 120px;
  resize: vertical;
}

.page-contact .field__input:focus-visible {
  outline: 2px solid var(--mint-deep);
  outline-offset: 2px;
  border-color: var(--mint-deep);
}

.page-contact .field__hint {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: #6B5F4C;
}

.page-contact .choice-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .choice {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 2px solid var(--form-line);
  background: var(--form-bg);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-contact .choice:hover {
  border-color: var(--mint-deep);
}

.page-contact .choice__input {
  width: 16px;
  height: 16px;
  accent-color: var(--mint-deep);
  margin: 0;
}

.page-contact .choice__label {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-900);
}

.page-contact .choice__input:checked + .choice__label {
  color: var(--mint-deep);
}

.page-contact .inquiry__actions {
  display: grid;
  gap: 12px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 2px solid var(--form-line);
}

.page-contact .inquiry__submit {
  justify-self: start;
}

.page-contact .inquiry__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: #6B5F4C;
}

.page-contact .inquiry-aside {
  padding: 22px 20px;
  border: 2px solid var(--ink-900);
  background: var(--ink-900);
  box-shadow: var(--shadow-amber);
  color: var(--frost);
}

.page-contact .inquiry-aside .eyebrow {
  margin: 0 0 14px;
  color: var(--amber);
}

.page-contact .inquiry-aside__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .inquiry-aside__list li {
  padding: 10px 0 10px 18px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--frost);
  position: relative;
}

.page-contact .inquiry-aside__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--amber);
}

.page-contact .inquiry-aside__note {
  margin: 16px 0 18px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 联系渠道 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: 16px;
}

.page-contact .channel {
  padding: 22px 20px;
  border: 2px solid var(--line);
  background: var(--ink-950);
  border-left: 4px solid var(--amber);
}

.page-contact .channel__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .channel__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.4vw, 27px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--frost);
  text-decoration: none;
  word-break: break-word;
}

.page-contact .channel__value--mail {
  font-size: clamp(15px, 2.4vw, 20px);
}

.page-contact .channel__value--addr {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.65;
  letter-spacing: 0;
}

.page-contact .channel__value:hover,
.page-contact .channel__value:focus-visible {
  color: var(--mint);
}

.page-contact .channel__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .mail-format {
  margin-top: 20px;
  padding: 18px 20px;
  border: 1px dashed var(--line);
  background: var(--ink-900);
}

.page-contact .mail-format__title {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 800;
  color: var(--amber);
}

.page-contact .mail-format__line {
  margin: 0 0 6px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sub-text);
}

.page-contact .mail-format__line:last-child {
  margin-bottom: 0;
}

.page-contact .mail-format__line .mono {
  color: var(--frost);
}

/* ---------- 合作流程 ---------- */
.page-contact .flow__figure {
  margin: 0 0 22px;
  border: 2px solid var(--line);
}

.page-contact .flow {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .flow-step {
  display: grid;
  gap: 6px;
  align-content: start;
  padding: 18px 16px;
  background: var(--ink-900);
  transition: background-color 180ms var(--ease);
}

.page-contact .flow-step:hover,
.page-contact .flow-step:focus-within {
  background: var(--ink-950);
}

.page-contact .flow-step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .flow-step--start .flow-step__num {
  color: var(--amber);
}

.page-contact .flow-step--start {
  box-shadow: inset 0 -3px 0 0 var(--amber);
}

.page-contact .flow-step__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  color: var(--frost);
}

.page-contact .flow-step:hover .flow-step__title {
  color: var(--amber);
}

.page-contact .flow-step__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 服务覆盖 ---------- */
.page-contact .coverage {
  display: grid;
  gap: 26px;
}

.page-contact .coverage__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}

.page-contact .stat {
  padding-top: 12px;
  border-top: 2px solid var(--mint);
}

.page-contact .stat__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 5vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--frost);
}

.page-contact .stat__plus {
  color: var(--amber);
}

.page-contact .stat__label {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.page-contact .coverage__text {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--sub-text);
}

.page-contact .coverage__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-contact .coverage__figure {
  margin: 0;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}

/* ---------- 页末链接 ---------- */
.page-contact .contact-links {
  display: grid;
  gap: 14px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-links__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-links__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-links__link {
  font-size: 14px;
  color: var(--frost);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .contact-links__link:hover,
.page-contact .contact-links__link:focus-visible {
  color: var(--mint);
  border-color: var(--mint);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .field-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .channel--wide {
    grid-column: 1 / -1;
  }

  .page-contact .contact-links {
    grid-template-columns: auto 1fr;
    align-items: baseline;
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
    gap: 46px;
    align-items: start;
  }

  .page-contact .type-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .inquiry__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    gap: 30px;
    align-items: start;
  }

  .page-contact .flow {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-contact .coverage {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 44px;
    align-items: center;
  }
}