.page-contact {
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

/* ── 首屏联络区 ───────────────────────────── */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(40px, 7vw, 92px) 0 clamp(44px, 6vw, 86px);
}

.page-contact .contact-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: -2;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(112% 92% at 6% 0%, rgba(168, 69, 44, 0.42), transparent 62%),
    linear-gradient(180deg, rgba(7, 19, 15, 0.6) 0%, rgba(7, 19, 15, 0.9) 56%, var(--ink) 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
}

.page-contact .breadcrumbs {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--moss);
}

.page-contact .breadcrumb-list a {
  color: rgba(242, 245, 238, 0.72);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-contact .breadcrumb-list a:hover,
.page-contact .breadcrumb-list a:focus-visible {
  color: var(--lime);
}

.page-contact .breadcrumb-sep {
  color: rgba(107, 143, 127, 0.7);
}

.page-contact .contact-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lime);
  margin: 0;
}

.page-contact h1 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 5.6vw, 60px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 16px 0 20px;
  max-width: 17ch;
  text-wrap: balance;
}

.page-contact .contact-hero .lead {
  max-width: 54ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.78;
  color: rgba(242, 245, 238, 0.78);
  margin: 0;
}

.page-contact .hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
}

.page-contact .hero-tags .tag {
  font-size: 12.5px;
  padding: 7px 15px;
}

/* ── 通用区块节奏 ─────────────────────────── */
.page-contact .section {
  position: relative;
  padding: clamp(46px, 6.4vw, 88px) 0;
}

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

.page-contact .section-head {
  max-width: 64ch;
  margin-bottom: clamp(26px, 3.6vw, 44px);
}

.page-contact .section-head .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--moss);
  margin: 0 0 10px;
}

.page-contact .section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.22;
  margin: 0 0 14px;
  text-wrap: balance;
}

.page-contact .section-head .lead {
  font-size: 16.5px;
  line-height: 1.78;
  color: rgba(242, 245, 238, 0.74);
  margin: 0;
}

/* ── 联络卡片 ─────────────────────────────── */
.page-contact .desk {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 900px) {
  .page-contact .desk {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: stretch;
  }
}

.page-contact .desk-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(22px, 3vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, rgba(20, 50, 42, 0.92), rgba(14, 33, 25, 0.94));
  overflow: hidden;
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-contact .desk-card:hover,
.page-contact .desk-card:focus-within {
  border-color: rgba(200, 241, 53, 0.55);
  transform: translateY(-4px);
  box-shadow: 0 22px 50px -28px rgba(0, 0, 0, 0.9);
}

.page-contact .desk-card--mail {
  border-color: rgba(255, 106, 31, 0.44);
  background:
    radial-gradient(128% 120% at 100% 0%, rgba(255, 106, 31, 0.2), transparent 58%),
    linear-gradient(160deg, rgba(20, 50, 42, 0.95), rgba(14, 33, 25, 0.95));
}

.page-contact .desk-card--mail::before {
  content: "";
  position: absolute;
  left: 0;
  top: 42px;
  bottom: 42px;
  width: 4px;
  border-radius: var(--pill);
  background: linear-gradient(180deg, var(--orange), rgba(255, 106, 31, 0));
}

.page-contact .desk-card--mail:hover,
.page-contact .desk-card--mail:focus-within {
  border-color: rgba(255, 106, 31, 0.85);
}

.page-contact .desk-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .desk-card__head .tag {
  font-size: 12px;
  padding: 6px 13px;
}

.page-contact .desk-card__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: rgba(107, 143, 127, 0.9);
}

.page-contact .desk-card h3 {
  font-family: var(--font-serif);
  font-size: clamp(21px, 2.6vw, 29px);
  line-height: 1.25;
  letter-spacing: 0.01em;
  margin: 4px 0 0;
}

.page-contact .desk-card p {
  margin: 0;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(242, 245, 238, 0.78);
}

.page-contact .desk-card .desk-value {
  margin-top: auto;
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.4vw, 23px);
  line-height: 1.32;
  letter-spacing: -0.004em;
  color: var(--orange);
  word-break: break-all;
  max-width: none;
}

.page-contact .desk-card .desk-value--phone {
  font-size: clamp(30px, 6.4vw, 48px);
  letter-spacing: 0.02em;
  color: var(--lime);
  word-break: normal;
}

.page-contact .desk-card .desk-note {
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(107, 143, 127, 1);
  max-width: 46ch;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

/* ── 信函与联络地址 ───────────────────────── */
.page-contact .contact-post {
  overflow: hidden;
}

.page-contact .contact-post::before {
  content: "";
  position: absolute;
  right: -18%;
  bottom: -44%;
  width: min(62vw, 700px);
  height: min(62vw, 700px);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(168, 69, 44, 0.32), transparent 66%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-post .container {
  position: relative;
  z-index: 1;
}

.page-contact .post-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

@media (min-width: 880px) {
  .page-contact .post-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

.page-contact .post-copy .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--moss);
  margin: 0 0 10px;
}

.page-contact .post-copy h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.22;
  margin: 0 0 16px;
}

.page-contact .post-copy > p {
  max-width: 50ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: rgba(242, 245, 238, 0.76);
  margin: 0 0 20px;
}

.page-contact .post-address {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 6px 0 6px 20px;
  border-left: 3px solid var(--clay);
  margin: 0 0 20px;
}

.page-contact .post-address__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-contact .post-address__value {
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.62;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .post-copy .desk-note {
  max-width: 50ch;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(107, 143, 127, 1);
  margin: 0;
}

.page-contact .post-figure {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(14, 33, 25, 0.7);
}

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

.page-contact .post-figure .media-frame__caption {
  font-size: 13px;
  line-height: 1.65;
  color: rgba(107, 143, 127, 1);
  padding: 12px 18px 16px;
}

/* ── 咨询前准备清单 ───────────────────────── */
.page-contact .contact-prep {
  position: relative;
  overflow: hidden;
}

.page-contact .contact-prep::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(242, 245, 238, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 245, 238, 0.05) 1px, transparent 1px);
  background-size: 62px 62px;
  -webkit-mask-image: radial-gradient(78% 68% at 50% 42%, #000 0%, transparent 78%);
  mask-image: radial-gradient(78% 68% at 50% 42%, #000 0%, transparent 78%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-prep .container {
  position: relative;
  z-index: 1;
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

@media (min-width: 720px) {
  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .prep-item {
  position: relative;
  display: flex;
}

.page-contact .prep-item input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .prep-label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  height: 100%;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(14, 33, 25, 0.72);
  cursor: pointer;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-contact .prep-label:hover {
  border-color: rgba(200, 241, 53, 0.45);
  transform: translateY(-2px);
}

.page-contact .prep-item input:focus-visible + .prep-label {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-contact .prep-item input:checked + .prep-label {
  border-color: rgba(200, 241, 53, 0.68);
  background: rgba(200, 241, 53, 0.1);
}

.page-contact .prep-box {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border-radius: 8px;
  border: 1px solid rgba(107, 143, 127, 0.85);
  background: rgba(7, 19, 15, 0.75);
  display: grid;
  place-items: center;
  transition: background 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .prep-box::after {
  content: "";
  width: 11px;
  height: 6px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(-45deg) translate(0, -1px) scale(0);
  transition: transform 0.22s var(--ease);
}

.page-contact .prep-item input:checked + .prep-label .prep-box {
  background: var(--lime);
  border-color: var(--lime);
}

.page-contact .prep-item input:checked + .prep-label .prep-box::after {
  transform: rotate(-45deg) translate(0, -1px) scale(1);
}

.page-contact .prep-text {
  font-size: 15.5px;
  line-height: 1.68;
  color: rgba(242, 245, 238, 0.8);
}

.page-contact .prep-text strong {
  display: block;
  margin-bottom: 3px;
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .prep-item input:checked + .prep-label .prep-text {
  color: rgba(242, 245, 238, 0.62);
}

.page-contact .prep-item input:checked + .prep-label .prep-text strong {
  color: var(--lime);
}

/* ── 常见对接问题 ─────────────────────────── */
.page-contact .contact-faq .accordion {
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-contact .contact-next {
  max-width: 70ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 245, 238, 0.7);
}

.page-contact .contact-next a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 241, 53, 0.4);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .contact-next a:hover,
.page-contact .contact-next a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--lime);
}

/* ── 站点身份与备案 ───────────────────────── */
.page-contact .id-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(126% 140% at 100% 0%, rgba(47, 209, 197, 0.13), transparent 58%),
    rgba(14, 33, 25, 0.82);
}

@media (min-width: 760px) {
  .page-contact .id-band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

.page-contact .id-band .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--moss);
  margin: 0 0 8px;
}

.page-contact .id-site {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.6vw, 27px);
  line-height: 1.3;
  margin: 0 0 6px;
}

.page-contact .id-domain {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--moss);
  margin: 0;
  word-break: break-all;
}

.page-contact .id-filing {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

@media (min-width: 760px) {
  .page-contact .id-filing {
    padding-left: 30px;
    border-left: 1px solid var(--line);
    text-align: right;
    align-items: flex-end;
  }
}

.page-contact .id-filing__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-contact .id-filing__value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 20px);
  letter-spacing: 0.02em;
  color: var(--lime);
}

/* ── 减少动效 ─────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .page-contact .desk-card,
  .page-contact .prep-label,
  .page-contact .prep-box,
  .page-contact .prep-box::after {
    transition: none;
  }

  .page-contact .desk-card:hover,
  .page-contact .desk-card:focus-within,
  .page-contact .prep-label:hover {
    transform: none;
  }
}