.page-contact {
  --pc-cut: 14px;
  --pc-line: 1px solid var(--steel-600);
  position: relative;
  padding-block: var(--sp-6) var(--sp-9);
  color: var(--mist-200);
  background:
    radial-gradient(120% 60% at 100% 0%, rgba(42, 53, 80, 0.38) 0%, rgba(5, 7, 14, 0) 60%),
    var(--midnight-950);
}

.page-contact .breadcrumb {
  padding-top: var(--sp-3);
}

.page-contact .section {
  padding-top: var(--sp-8);
}

.page-contact .section-head {
  max-width: 62ch;
  margin-bottom: var(--sp-6);
}

.page-contact .section-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin: 0 0 var(--sp-3);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--volt-500);
  text-transform: uppercase;
}

.page-contact .section-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--volt-500);
}

.page-contact .section-title {
  margin: 0 0 var(--sp-3);
  font-family: var(--font-display);
  font-size: clamp(24px, 4.6vw, 38px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ice-050);
}

.page-contact .section-note {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate-400);
}

/* ---------- 首屏 ---------- */

.page-contact .hero {
  padding-top: var(--sp-5);
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-5);
}

.page-contact .hero-main {
  padding: var(--sp-6) var(--sp-5) var(--sp-7);
  background: linear-gradient(158deg, var(--panel-800) 0%, var(--deep-900) 62%, var(--midnight-950) 100%);
  border: var(--pc-line);
  clip-path: polygon(var(--pc-cut) 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%, 0 var(--pc-cut));
}

.page-contact .hero-label {
  display: inline-block;
  margin: 0 0 var(--sp-4);
  padding: 3px 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--midnight-950);
  background: var(--volt-500);
}

.page-contact h1 {
  margin: 0 0 var(--sp-4);
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 56px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--ice-050);
}

.page-contact .hero-lede {
  max-width: 54ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-200);
}

.page-contact .contact-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
  margin-top: var(--sp-7);
  padding-top: var(--sp-5);
  border-top: 1px dashed var(--steel-600);
}

.page-contact .contact-item {
  display: grid;
  gap: 6px;
  padding-left: var(--sp-4);
  border-left: 2px solid var(--steel-600);
}

.page-contact .contact-item__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate-400);
}

.page-contact .contact-item__value {
  font-size: clamp(15px, 2.4vw, 20px);
  font-weight: 600;
  color: var(--ice-050);
  overflow-wrap: anywhere;
}

.page-contact .contact-item__value--text {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
}

.page-contact .contact-item__hint {
  font-size: 13px;
  line-height: 1.55;
  color: var(--slate-400);
}

.page-contact .hero-side {
  padding: var(--sp-5);
  background: var(--deep-900);
  border: var(--pc-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%);
}

.page-contact .side-title {
  margin: 0 0 var(--sp-4);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--mist-200);
}

.page-contact .side-list {
  display: grid;
  gap: var(--sp-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .side-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  min-height: 44px;
  padding: var(--sp-2) var(--sp-4);
  border: var(--pc-line);
  background: rgba(18, 26, 43, 0.5);
  color: var(--mist-200);
  text-decoration: none;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease), color 180ms var(--ease);
}

.page-contact .side-item__idx {
  font-size: 12px;
  color: var(--volt-700);
}

.page-contact .side-item__label {
  font-size: 14px;
}

.page-contact .side-item:hover,
.page-contact .side-item:focus-visible {
  border-color: var(--volt-500);
  background: var(--panel-800);
  color: var(--ice-050);
}

.page-contact .side-item:hover .side-item__idx,
.page-contact .side-item:focus-visible .side-item__idx {
  color: var(--volt-500);
}

.page-contact .side-foot {
  margin: var(--sp-5) 0 0;
  padding-top: var(--sp-4);
  border-top: 1px dashed var(--steel-600);
  font-size: 13px;
  color: var(--slate-400);
}

/* ---------- 需求分流 ---------- */

.page-contact .routes {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
}

.page-contact .route-card {
  position: relative;
  padding: var(--sp-5);
  background: linear-gradient(180deg, rgba(18, 26, 43, 0.85), rgba(10, 15, 28, 0.9));
  border: var(--pc-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: transform 220ms var(--ease), border-color 220ms var(--ease);
}

.page-contact .route-card:hover {
  transform: translateY(-3px);
  border-color: var(--volt-700);
}

.page-contact .route-card__idx {
  display: block;
  margin-bottom: var(--sp-3);
  font-size: clamp(26px, 5vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--volt-500);
  opacity: 0.55;
}

.page-contact .route-card__title {
  margin: 0 0 var(--sp-3);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--ice-050);
}

.page-contact .route-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist-200);
}

.page-contact .route-card__need {
  margin: var(--sp-4) 0 0;
  padding-top: var(--sp-3);
  border-top: 1px dashed var(--steel-600);
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate-400);
}

.page-contact .route-card__need strong {
  display: inline-block;
  margin-right: 6px;
  color: var(--volt-700);
  font-weight: 700;
}

.page-contact .route-figure {
  margin: var(--sp-6) 0 0;
  border: var(--pc-line);
  background: var(--deep-900);
}

/* ---------- 写邮件 ---------- */

.page-contact .mail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-5);
}

.page-contact .mail-example {
  padding: var(--sp-6) var(--sp-5);
  background: var(--deep-900);
  border: var(--pc-line);
  clip-path: polygon(var(--pc-cut) 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%, 0 var(--pc-cut));
}

.page-contact .mail-example__label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate-400);
}

.page-contact .mail-title-example {
  margin: var(--sp-4) 0 0;
  padding: var(--sp-4) var(--sp-5);
  border: 1px dashed var(--volt-700);
  background: rgba(182, 255, 60, 0.06);
  font-size: clamp(17px, 2.6vw, 24px);
  font-weight: 600;
  color: var(--ice-050);
  overflow-wrap: anywhere;
}

.page-contact .mail-example__hint {
  margin: var(--sp-4) 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-400);
}

.page-contact .mail-list-title {
  margin: 0 0 var(--sp-4);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--ice-050);
}

.page-contact .mail-list {
  display: grid;
  gap: var(--sp-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .mail-list li {
  position: relative;
  padding-left: var(--sp-5);
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist-200);
}

.page-contact .mail-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--volt-500);
}

/* ---------- 响应节奏 ---------- */

.page-contact .track {
  padding: var(--sp-5);
  background: var(--deep-900);
  border: var(--pc-line);
}

.page-contact .track__bar {
  position: relative;
  height: 12px;
  background: var(--panel-800);
  border: 1px solid var(--steel-600);
  overflow: hidden;
}

.page-contact .track__fill {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--volt-700), var(--volt-500));
  transform-origin: left center;
  animation: pc-track-in 900ms var(--ease) both;
}

@keyframes pc-track-in {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.page-contact .track__marks {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-3);
  margin: var(--sp-5) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .track__marks li {
  font-size: 12px;
  line-height: 1.5;
  color: var(--slate-400);
}

.page-contact .track__time {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ice-050);
}

.page-contact .timing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-5);
  margin-top: var(--sp-5);
}

.page-contact .timing-notes {
  display: grid;
  gap: var(--sp-3);
}

.page-contact .timing-note {
  padding: var(--sp-4) var(--sp-5);
  border-left: 2px solid var(--steel-600);
  background: rgba(18, 26, 43, 0.42);
}

.page-contact .timing-note__title {
  margin: 0 0 var(--sp-2);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--ice-050);
}

.page-contact .timing-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist-200);
}

.page-contact .timing-figure {
  margin: 0;
  border: var(--pc-line);
  background: var(--deep-900);
}

/* ---------- 合作流程 ---------- */

.page-contact .steps {
  display: grid;
  gap: var(--sp-4);
}

.page-contact .step {
  width: 100%;
  border: var(--pc-line);
  background: linear-gradient(120deg, rgba(18, 26, 43, 0.92), rgba(10, 15, 28, 0.92));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.page-contact .step__head {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  min-height: 60px;
  padding: var(--sp-4) var(--sp-5);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .step__head:focus-visible {
  outline: 2px solid var(--volt-500);
  outline-offset: -2px;
}

.page-contact .step__num {
  flex: none;
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--steel-600);
  transition: color 200ms var(--ease);
}

.page-contact .step__title {
  flex: 1;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--ice-050);
}

.page-contact .step__toggle {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
}

.page-contact .step__toggle::before,
.page-contact .step__toggle::after {
  content: "";
  position: absolute;
  background: var(--volt-500);
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

.page-contact .step__toggle::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.page-contact .step__toggle::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

.page-contact .step[open] .step__toggle::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-contact .step[open] .step__num {
  color: var(--volt-500);
}

.page-contact .step__body {
  padding: 0 var(--sp-5) var(--sp-5);
  border-top: 1px dashed var(--steel-600);
  margin-top: 2px;
  padding-top: var(--sp-4);
}

.page-contact .step__body p {
  margin: 0 0 var(--sp-4);
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-200);
}

.page-contact .step__list {
  display: grid;
  gap: var(--sp-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .step__list li {
  position: relative;
  padding-left: var(--sp-5);
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate-400);
}

.page-contact .step__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 10px;
  height: 1px;
  background: var(--volt-700);
}

/* ---------- 服务范围 ---------- */

.page-contact .scope-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--steel-600);
  border: var(--pc-line);
}

.page-contact .scope-stat {
  display: grid;
  gap: var(--sp-2);
  padding: var(--sp-5) var(--sp-4);
  background: var(--midnight-950);
}

.page-contact .scope-stat__num {
  font-size: clamp(28px, 6vw, 46px);
  font-weight: 700;
  line-height: 1;
  color: var(--ice-050);
}

.page-contact .scope-stat__unit {
  margin-left: 2px;
  font-size: 0.42em;
  color: var(--slate-400);
}

.page-contact .scope-stat--accent .scope-stat__num {
  color: var(--volt-500);
}

.page-contact .scope-stat__label {
  font-size: 13px;
  line-height: 1.55;
  color: var(--slate-400);
}

.page-contact .scope-notes {
  display: grid;
  gap: var(--sp-4);
  margin-top: var(--sp-6);
  max-width: 68ch;
}

.page-contact .scope-notes p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-200);
}

.page-contact .scope-notes a {
  color: var(--volt-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(182, 255, 60, 0.4);
}

.page-contact .scope-notes a:hover,
.page-contact .scope-notes a:focus-visible {
  border-bottom-color: var(--volt-500);
}

/* ---------- 收尾 ---------- */

.page-contact .closing-panel {
  display: grid;
  gap: var(--sp-6);
  padding: var(--sp-6) var(--sp-5);
  background: linear-gradient(100deg, var(--panel-800) 0%, var(--deep-900) 70%);
  border: var(--pc-line);
  clip-path: polygon(var(--pc-cut) 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%, 0 var(--pc-cut));
}

.page-contact .closing-copy h2 {
  margin: 0 0 var(--sp-3);
  font-family: var(--font-display);
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ice-050);
}

.page-contact .closing-copy p {
  max-width: 58ch;
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-200);
}

.page-contact .closing-copy a {
  color: var(--volt-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(182, 255, 60, 0.4);
}

.page-contact .closing-contacts {
  display: grid;
  gap: var(--sp-3);
  align-content: start;
}

.page-contact .closing-contact {
  display: grid;
  gap: 6px;
  min-height: 44px;
  padding: var(--sp-4) var(--sp-5);
  border: var(--pc-line);
  background: rgba(5, 7, 14, 0.6);
  text-decoration: none;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-contact .closing-contact:hover,
.page-contact .closing-contact:focus-visible {
  border-color: var(--volt-500);
  background: rgba(182, 255, 60, 0.06);
}

.page-contact .closing-contact__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate-400);
}

.page-contact .closing-contact__value {
  font-size: clamp(14px, 2.2vw, 18px);
  font-weight: 600;
  color: var(--ice-050);
  overflow-wrap: anywhere;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-contact .contact-card {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--sp-6);
  }

  .page-contact .track__marks {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .routes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .mail-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--sp-7);
  }

  .page-contact .timing-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-contact .step:nth-child(1) { width: 100%; }
  .page-contact .step:nth-child(2) { width: 88%; }
  .page-contact .step:nth-child(3) { width: 76%; }
  .page-contact .step:nth-child(4) { width: 64%; }

  .page-contact .step__head {
    min-height: 72px;
  }
}

@media (min-width: 1000px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.9fr);
    align-items: start;
  }

  .page-contact .hero-side {
    position: sticky;
    top: calc(var(--header-h) + var(--sp-5));
  }

  .page-contact .closing-panel {
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.8fr);
    align-items: center;
    padding: var(--sp-7) var(--sp-6);
  }
}

@media (min-width: 1200px) {
  .page-contact .routes {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .track__fill {
    animation: none;
  }

  .page-contact .route-card,
  .page-contact .side-item,
  .page-contact .step__num,
  .page-contact .closing-contact {
    transition: none;
  }
}
</PAGE_CSS>>>