.page-contact {
  --c-line: #2A4664;
  --c-panel: #16283F;
  --c-panel-soft: rgba(22, 40, 63, 0.62);
  --c-glow: rgba(62, 242, 224, 0.14);
  --c-warm-line: rgba(26, 21, 18, 0.16);
  background: var(--ink);
  color: var(--fg);
  overflow-x: hidden;
}

.page-contact .breadcrumbs {
  padding-top: 1.1rem;
  font-size: 0.74rem;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(1.6rem, 4vw, 3.2rem) clamp(2.2rem, 5vw, 4rem);
  border-bottom: 1px solid var(--c-line);
  background:
    radial-gradient(60% 90% at 92% 0%, rgba(62, 242, 224, 0.09), transparent 64%),
    linear-gradient(118deg, rgba(13, 27, 46, 0.94) 0%, rgba(7, 17, 31, 0.35) 52%, rgba(13, 27, 46, 0.86) 100%);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: min(52%, 620px);
  background: linear-gradient(158deg, rgba(255, 138, 76, 0.16), rgba(62, 242, 224, 0.07) 58%, transparent 100%);
  clip-path: polygon(0 0, 100% 0, 74% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.6rem, 4vw, 2.8rem);
  align-items: end;
}

.page-contact .contact-hero__lead {
  max-width: 42rem;
}

.page-contact h1 {
  margin: 0.7rem 0 0;
  font-size: clamp(1.85rem, 4.6vw, 3.4rem);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-contact .contact-hero__lede {
  margin: 1rem 0 0;
  max-width: 36rem;
  font-size: clamp(0.94rem, 1.6vw, 1.05rem);
  line-height: 1.85;
  color: var(--fg-muted);
}

.page-contact .hero-panel {
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: clamp(1rem, 2.6vw, 1.6rem);
  background: linear-gradient(180deg, rgba(22, 40, 63, 0.92), rgba(7, 17, 31, 0.92));
  box-shadow: 0 18px 46px -32px rgba(0, 0, 0, 0.95);
}

.page-contact .hero-panel__kicker {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .hero-panel__row {
  display: grid;
  grid-template-columns: 5.2rem minmax(0, 1fr);
  gap: 0.6rem;
  padding-block: 0.62rem;
  border-top: 1px solid rgba(42, 70, 100, 0.55);
}

.page-contact .hero-panel__k {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
}

.page-contact .hero-panel__v {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--fg);
  overflow-wrap: anywhere;
}

.page-contact .hero-panel__note {
  margin: 0.9rem 0 0;
  padding-left: 0.75rem;
  border-left: 2px solid var(--orange);
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--fg-muted);
}

/* ---------- 通用区块 ---------- */
.page-contact .section {
  padding-block: clamp(2.4rem, 6vw, 4.4rem);
}

.page-contact .section__head {
  max-width: 44rem;
  margin-bottom: clamp(1.4rem, 3.4vw, 2.4rem);
}

.page-contact h2 {
  margin: 0.55rem 0 0;
  font-size: clamp(1.4rem, 2.9vw, 2.15rem);
  line-height: 1.24;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.page-contact h3 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .section__intro {
  margin: 0.85rem 0 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--fg-muted);
}

/* ---------- 三通道 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: clamp(1.05rem, 2.6vw, 1.7rem);
  background: linear-gradient(180deg, rgba(13, 27, 46, 0.96), rgba(7, 17, 31, 0.98));
}

.page-contact .channel:first-child {
  background: linear-gradient(180deg, rgba(22, 40, 63, 0.96), rgba(9, 21, 37, 0.98));
}

.page-contact .channel__no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-contact .channel__title {
  color: var(--fg);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .channel__text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--fg-muted);
}

.page-contact .channel__meta {
  margin: auto 0 0;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(42, 70, 100, 0.6);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .channel-figure {
  margin: clamp(1.4rem, 3.4vw, 2.4rem) 0 0;
}

.page-contact .channel-figure img,
.page-contact .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--c-panel);
}

.page-contact .channel-figure figcaption,
.page-contact .flow-figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 分栏：流程 + 表单 ---------- */
.page-contact .pane-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.6rem, 4vw, 3rem);
  align-items: start;
}

.page-contact .flow {
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: rgba(42, 70, 100, 0.55);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .flow__step {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.95rem 1rem;
  background: rgba(7, 17, 31, 0.92);
}

.page-contact .flow__no {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .flow__step h3 {
  font-size: 0.95rem;
}

.page-contact .flow__step p {
  margin: 0.35rem 0 0;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--fg-muted);
}

.page-contact .steps-toggle {
  margin-top: 1.1rem;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: rgba(22, 40, 63, 0.5);
}

.page-contact .steps-toggle summary {
  cursor: pointer;
  padding: 0.8rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--cyan);
  list-style-position: inside;
}

.page-contact .steps-toggle summary::marker {
  color: var(--orange);
}

.page-contact .steps-toggle__body {
  padding: 0 1rem 1rem;
  border-top: 1px solid rgba(42, 70, 100, 0.6);
}

.page-contact .steps-toggle__body p {
  margin: 0.8rem 0 0;
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--fg-muted);
}

.page-contact .flow-figure {
  margin: 1.4rem 0 0;
}

/* ---------- 表单 ---------- */
.page-contact .form-shell {
  position: relative;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: clamp(1.15rem, 3vw, 2rem);
  background:
    linear-gradient(158deg, rgba(62, 242, 224, 0.1) 0, transparent 38%),
    linear-gradient(170deg, rgba(22, 40, 63, 0.9), rgba(9, 21, 37, 0.96));
  box-shadow: 0 26px 60px -44px rgba(0, 0, 0, 1);
}

.page-contact .form-shell__kicker {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-contact .form-shell__intro {
  margin: 0.8rem 0 1.4rem;
  font-size: 0.87rem;
  line-height: 1.8;
  color: var(--fg-muted);
}

.page-contact .form-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.9rem;
}

.page-contact .field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.page-contact .field label {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
}

.page-contact .field input,
.page-contact .field select,
.page-contact .field textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--fg);
  background: rgba(7, 17, 31, 0.86);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 0.68rem 0.78rem;
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.page-contact .field textarea {
  resize: vertical;
  min-height: 7rem;
}

.page-contact .field input::placeholder,
.page-contact .field textarea::placeholder {
  color: rgba(168, 183, 198, 0.68);
}

.page-contact .field input:focus,
.page-contact .field select:focus,
.page-contact .field textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--c-glow);
}

.page-contact .field input:focus-visible,
.page-contact .field select:focus-visible,
.page-contact .field textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .form-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.8rem;
  margin-top: 1.3rem;
  padding-left: clamp(0rem, 2vw, 1.2rem);
}

.page-contact .form-actions .btn {
  min-width: 9.5rem;
}

.page-contact .form-hint {
  margin: 0;
  max-width: 24rem;
  padding-left: 0.7rem;
  border-left: 2px solid var(--orange);
  font-size: 0.76rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 合作 ---------- */
.page-contact .collab {
  background: var(--sand);
  color: var(--umber);
  border-top: 1px solid var(--c-warm-line);
  border-bottom: 1px solid var(--c-warm-line);
}

.page-contact .collab__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.6rem, 4vw, 3rem);
  align-items: start;
}

.page-contact .eyebrow--umber {
  color: #8a4a1d;
}

.page-contact .eyebrow--umber::before {
  background: #8a4a1d;
}

.page-contact .collab h2 {
  color: var(--umber);
}

.page-contact .collab__text p {
  margin: 0.9rem 0 0;
  font-size: 0.92rem;
  line-height: 1.9;
  color: rgba(26, 21, 18, 0.82);
}

.page-contact .collab__list {
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.page-contact .collab__list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(26, 21, 18, 0.86);
}

.page-contact .collab__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.55rem;
  height: 2px;
  background: #c2521f;
}

.page-contact .collab__contact {
  padding: 0.7rem 0.9rem;
  border-left: 3px solid #c2521f;
  background: rgba(244, 235, 217, 0.72);
  font-family: var(--font-mono);
  font-size: 0.8rem !important;
  overflow-wrap: anywhere;
}

.page-contact .collab__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.3rem;
}

.page-contact .collab__links .btn--ghost {
  color: var(--umber);
  border-color: rgba(26, 21, 18, 0.45);
}

.page-contact .collab__links .btn--ghost:hover,
.page-contact .collab__links .btn--ghost:focus-visible {
  background: var(--umber);
  color: var(--sand);
  border-color: var(--umber);
}

.page-contact .collab__aside {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.4rem 1rem;
  padding-top: 0.4rem;
  border-top: 1px solid rgba(26, 21, 18, 0.28);
}

.page-contact .collab__num {
  margin: 0.9rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 4.4vw, 2.7rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: #b8410f;
}

.page-contact .collab__num span {
  font-size: 0.8rem;
  margin-left: 0.2rem;
  color: rgba(26, 21, 18, 0.7);
}

.page-contact .collab__num-label {
  margin: 0.2rem 0 0;
  font-size: 0.78rem;
  line-height: 1.7;
  color: rgba(26, 21, 18, 0.78);
}

/* ---------- 服务信息 ---------- */
.page-contact .info-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .info-item {
  padding: 1rem 1.1rem;
  background: rgba(13, 27, 46, 0.9);
}

.page-contact .info-item__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .info-item__value {
  margin: 0.45rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .info-item__note {
  margin: 0.45rem 0 0;
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--fg-muted);
}

.page-contact .legal-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.8rem;
  margin-top: clamp(1.4rem, 3.4vw, 2rem);
}

.page-contact .legal-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: rgba(22, 40, 63, 0.45);
  text-decoration: none;
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.page-contact .legal-card__title {
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--fg);
}

.page-contact .legal-card__text {
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--fg-muted);
}

.page-contact .legal-card:hover,
.page-contact .legal-card:focus-visible {
  border-color: var(--cyan);
  background: rgba(62, 242, 224, 0.08);
  transform: translateY(-2px);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .form-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-contact .field--full {
    grid-column: 1 / -1;
  }

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

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

@media (min-width: 860px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
  }

  .page-contact .channel-grid {
    grid-template-columns: 1.15fr 1fr 0.85fr;
  }

  .page-contact .pane-grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }

  .page-contact .pane--form {
    position: sticky;
    top: 6rem;
  }

  .page-contact .collab__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
  }

  .page-contact .legal-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-contact .info-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .form-actions {
    flex-direction: row;
    align-items: center;
    gap: 1.1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .legal-card {
    transition: border-color 1ms, background 1ms;
  }

  .page-contact .legal-card:hover,
  .page-contact .legal-card:focus-visible {
    transform: none;
  }
}

已在上方完整输出。