.page-contact {
  --contact-gap: clamp(16px, 2.4vw, 28px);
  --contact-hair: rgba(61, 242, 208, 0.28);
  --contact-rule: rgba(42, 33, 25, 0.16);
  background: var(--cream-paper);
  color: var(--ink-brown);
}

.page-contact .contact-crumb {
  background: var(--cream-paper);
  padding: 14px 0 4px;
}

.page-contact .section {
  padding-block: clamp(40px, 7vw, 88px);
}

.page-contact .section--paper {
  background: var(--warm-white);
  color: var(--ink-brown);
}

.page-contact .section--dark {
  background: var(--night-pitch);
  color: var(--warm-white);
}

.page-contact h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.12;
  letter-spacing: 0.04em;
  margin: 0.3em 0 0.5em;
}

.page-contact h3 {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.6vw, 23px);
  line-height: 1.25;
  letter-spacing: 0.03em;
  margin: 0 0 0.5em;
}

.page-contact .eyebrow--ink {
  color: var(--signal-red);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--night-pitch);
  color: var(--warm-white);
  padding: clamp(26px, 5vw, 56px) 0 clamp(38px, 6vw, 76px);
}

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

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(61, 242, 208, 0.16), transparent 58%),
    linear-gradient(180deg, rgba(6, 26, 21, 0.35) 0%, rgba(6, 26, 21, 0.93) 80%);
}

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

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 7.2vw, 62px);
  line-height: 1.04;
  letter-spacing: 0.05em;
  margin: 0.28em 0 0.45em;
  max-width: 18ch;
}

.page-contact .contact-hero__lede {
  max-width: 48ch;
  color: var(--warm-white);
  opacity: 0.86;
  font-size: clamp(15px, 2.2vw, 18px);
  line-height: 1.8;
}

/* 主要渠道 */
.page-contact .contact-direct {
  display: grid;
  gap: var(--contact-gap);
  margin-top: clamp(26px, 4vw, 46px);
}

.page-contact .contact-direct__main {
  display: grid;
  gap: var(--contact-gap);
}

.page-contact .channel {
  padding: clamp(18px, 3vw, 30px);
  background: rgba(12, 44, 35, 0.74);
  border: 1px solid var(--table-line);
  border-radius: var(--radius-organic);
  box-shadow: var(--shadow-panel);
}

.page-contact .channel--phone {
  background: rgba(23, 71, 58, 0.55);
  border-color: var(--contact-hair);
}

.page-contact .channel__label {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber-rank);
  margin: 0 0 10px;
}

.page-contact .channel__value {
  display: inline-block;
  font-family: var(--font-mono);
  color: var(--fluoro-cyan);
  text-decoration: none;
  line-height: 1.3;
  overflow-wrap: anywhere;
  border-bottom: 1px solid rgba(61, 242, 208, 0.4);
  padding-bottom: 4px;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.page-contact .channel__value--mail {
  font-size: clamp(17px, 4.4vw, 33px);
}

.page-contact .channel__value--phone {
  font-size: clamp(26px, 6vw, 44px);
  letter-spacing: 0.02em;
}

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

.page-contact .channel__hint {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted-sage);
  max-width: 42ch;
}

.page-contact .channel__cta {
  display: inline-flex;
  align-items: center;
  margin-top: 16px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-decoration: none;
  background: var(--fluoro-cyan);
  color: var(--night-pitch);
  border: 1px solid var(--fluoro-cyan);
  transition: background 0.25s ease, color 0.25s ease;
}

.page-contact .channel--phone .channel__cta {
  background: transparent;
  color: var(--fluoro-cyan);
}

.page-contact .channel__cta:hover,
.page-contact .channel__cta:focus-visible {
  background: var(--focus-glow);
  color: var(--night-pitch);
}

/* 侧栏事实 */
.page-contact .contact-direct__side {
  display: grid;
  gap: 4px;
  align-content: start;
}

.page-contact .fact {
  padding: 16px 0 18px;
  border-top: 1px solid var(--table-line);
}

.page-contact .fact__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber-rank);
}

.page-contact .fact__value {
  margin: 8px 0 0;
  font-size: clamp(16px, 2.3vw, 19px);
  line-height: 1.6;
  color: var(--warm-white);
}

.page-contact .fact__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted-sage);
}

.page-contact .coord-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.page-contact .coord-row span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  padding: 5px 11px;
  border: 1px solid var(--pitch-grid);
  border-radius: var(--radius-pill);
  color: var(--fluoro-cyan);
  background: rgba(23, 71, 58, 0.5);
}

.page-contact .quick-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--table-line);
}

.page-contact .quick-links a {
  color: var(--fluoro-cyan);
  font-size: 14px;
  line-height: 1.6;
  text-decoration: none;
  padding: 3px 0;
  border-bottom: 1px solid transparent;
  width: fit-content;
}

.page-contact .quick-links a:hover,
.page-contact .quick-links a:focus-visible {
  border-bottom-color: var(--contact-hair);
}

/* ---------- 邮件标题 ---------- */
.page-contact .subject-layout {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .subject-layout__note {
  font-size: 15px;
  line-height: 1.85;
  max-width: 40ch;
}

.page-contact .subject-layout__list {
  display: grid;
  gap: var(--contact-gap);
}

.page-contact .subject-item {
  padding: 18px 20px 20px;
  background: var(--cream-paper);
  border-left: 3px solid var(--pitch-grid);
  border-radius: 4px var(--radius-organic);
}

.page-contact .subject-item__tag {
  margin: 0 0 10px;
}

.page-contact .subject-item__demo {
  margin: 0 0 8px;
  font-size: clamp(13px, 1.9vw, 15px);
  line-height: 1.6;
  color: var(--deep-forest);
  background: rgba(23, 71, 58, 0.08);
  padding: 8px 10px;
  border-radius: 4px;
  overflow-wrap: anywhere;
}

.page-contact .subject-item__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(42, 33, 25, 0.78);
}

/* ---------- 咨询分类 ---------- */
.page-contact .routes-head {
  max-width: 52ch;
}

.page-contact .routes-head__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted-sage);
}

.page-contact .topic-grid {
  display: grid;
  gap: var(--contact-gap);
  margin-top: clamp(22px, 3.4vw, 38px);
}

.page-contact .topic-card {
  display: flex;
  flex-direction: column;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--deep-forest);
  border: 1px solid var(--table-line);
  border-radius: var(--radius-organic);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-contact .topic-card--amber {
  background: linear-gradient(160deg, rgba(244, 184, 74, 0.12), rgba(12, 44, 35, 0.9) 62%);
  border-color: rgba(244, 184, 74, 0.32);
}

.page-contact .topic-card:hover {
  border-color: var(--contact-hair);
  transform: translateY(-3px);
}

.page-contact .topic-card__idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--amber-rank);
  margin-bottom: 10px;
}

.page-contact .topic-card h3 {
  color: var(--warm-white);
  margin-bottom: 8px;
}

.page-contact .topic-card p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-sage);
}

.page-contact .topic-card__link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--fluoro-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--contact-hair);
  padding-bottom: 3px;
}

.page-contact .topic-card__link:hover,
.page-contact .topic-card__link:focus-visible {
  color: var(--focus-glow);
  border-bottom-color: var(--focus-glow);
}

/* ---------- 合作流程 ---------- */
.page-contact .flow__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  max-width: 52ch;
}

.page-contact .flow__steps {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: var(--contact-gap);
}

.page-contact .flow-step {
  padding-top: 18px;
  border-top: 2px solid var(--deep-forest);
}

.page-contact .flow-step__num {
  display: block;
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--signal-red);
  margin-bottom: 10px;
}

.page-contact .flow-step h3 {
  font-size: clamp(16px, 2.2vw, 19px);
  margin-bottom: 6px;
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(42, 33, 25, 0.78);
}

/* ---------- 到访与邮寄 ---------- */
.page-contact .visit {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .visit__text p {
  font-size: 15px;
  line-height: 1.9;
  margin: 0 0 14px;
  max-width: 46ch;
}

.page-contact .visit__cta {
  margin-top: 8px;
}

.page-contact .visit__map {
  margin: 0;
  border-radius: var(--radius-organic);
  overflow: hidden;
  border: 1px solid rgba(23, 71, 58, 0.24);
  background: var(--deep-forest);
}

.page-contact .visit__map .media-frame__image {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .visit__map .media-frame__caption {
  padding: 10px 14px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted-sage);
  background: var(--night-pitch);
}

/* ---------- 常见问题 ---------- */
.page-contact .qa-layout {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
}

.page-contact .qa-layout__note {
  font-size: 14px;
  line-height: 1.85;
  max-width: 34ch;
  color: rgba(42, 33, 25, 0.78);
}

.page-contact .qa-layout__cta {
  margin-top: 14px;
}

.page-contact .qa {
  border-top: 1px solid var(--contact-rule);
  padding: 16px 0 18px;
}

.page-contact .qa:last-child {
  border-bottom: 1px solid var(--contact-rule);
}

.page-contact .qa summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  font-size: clamp(15px, 2vw, 17px);
  font-weight: 600;
  line-height: 1.6;
}

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

.page-contact .qa summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--signal-red);
}

.page-contact .qa[open] summary::after {
  content: "−";
}

.page-contact .qa summary:focus-visible {
  outline: 2px solid var(--signal-red);
  outline-offset: 4px;
}

.page-contact .qa__body {
  padding-top: 10px;
}

.page-contact .qa__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(42, 33, 25, 0.8);
  max-width: 58ch;
}

.page-contact .qa__body a {
  color: var(--deep-forest);
  border-bottom: 1px solid var(--signal-red);
  text-decoration: none;
}

/* ---------- 底部联系条 ---------- */
.page-contact .contact-strip {
  background: var(--deep-forest);
  border-top: 1px solid var(--table-line);
  padding-block: clamp(26px, 4vw, 40px);
}

.page-contact .contact-strip__inner {
  display: grid;
  gap: 14px;
}

.page-contact .contact-strip__lead {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.2vw, 28px);
  letter-spacing: 0.06em;
  color: var(--warm-white);
}

.page-contact .contact-strip__items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.page-contact .contact-strip__item {
  font-size: clamp(14px, 2.4vw, 19px);
  color: var(--fluoro-cyan);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px solid transparent;
}

.page-contact .contact-strip__item--tel {
  color: var(--amber-rank);
}

.page-contact .contact-strip__item:hover,
.page-contact .contact-strip__item:focus-visible {
  border-bottom-color: currentColor;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .subject-item {
    padding: 20px 24px 22px;
  }
}

@media (min-width: 768px) {
  .page-contact .contact-strip__inner {
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 32px;
  }

  .page-contact .contact-strip__items {
    justify-content: flex-end;
  }

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

@media (min-width: 900px) {
  .page-contact .contact-direct {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(24px, 3.6vw, 52px);
    align-items: start;
  }

  .page-contact .subject-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .visit {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: center;
  }

  .page-contact .qa-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .qa-layout__side {
    position: sticky;
    top: 96px;
  }

  .page-contact .flow__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(18px, 2.2vw, 28px);
  }
}

@media (min-width: 1080px) {
  .page-contact .topic-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .topic-card:nth-child(2) {
    margin-top: 26px;
  }

  .page-contact .topic-card:nth-child(3) {
    margin-top: 12px;
  }

  .page-contact .topic-card:nth-child(5) {
    margin-top: -14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel__value,
  .page-contact .channel__cta,
  .page-contact .topic-card,
  .page-contact .topic-card__link {
    transition: none;
  }

  .page-contact .topic-card:hover {
    transform: none;
  }
}
<<<END>>>