.page-contact {
  display: block;
  background: var(--ink-950);
  color: var(--mist-200);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(18px, 3vw, 34px) 0 clamp(48px, 7vw, 104px);
  background: linear-gradient(158deg, #062019 0%, #062019 44%, var(--ink-900) 100%);
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 32%;
  opacity: 0.26;
  filter: saturate(0.85) contrast(1.06);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(6, 32, 25, 0.74) 0%, rgba(6, 32, 25, 0.42) 40%, rgba(6, 32, 25, 0.96) 100%),
    radial-gradient(86% 68% at 88% 4%, rgba(217, 246, 63, 0.2), transparent 62%);
}

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

.page-contact .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(203, 217, 207, 0.72);
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-contact .breadcrumb a {
  color: rgba(203, 217, 207, 0.72);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover {
  color: var(--lime-500);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 46px);
  align-items: center;
}

.page-contact h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(32px, 6.4vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper-50);
}

.page-contact .contact-hero__lead {
  max-width: 54ch;
  margin: 0 0 24px;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--mist-200);
}

.page-contact .contact-hero__quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.page-contact .contact-hero__quick a {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-pill);
  font-size: 14px;
  line-height: 1;
  color: var(--lime-300);
  text-decoration: none;
  transition: border-color 0.22s var(--ease), background-color 0.22s var(--ease), color 0.22s var(--ease);
}

.page-contact .contact-hero__quick a:hover,
.page-contact .contact-hero__quick a:focus-visible {
  border-color: var(--lime-500);
  background: rgba(217, 246, 63, 0.12);
  color: var(--lime-500);
}

/* ---------- 联系方式卡 ---------- */

.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3vw, 34px) clamp(20px, 3vw, 30px) clamp(20px, 3vw, 28px);
  background: var(--paper-50);
  color: var(--char-900);
  border-radius: var(--radius-lg);
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.5);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 140px;
  height: 7px;
  background: linear-gradient(90deg, var(--lime-500), var(--amber-500));
}

.page-contact .contact-card__tag {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #7a6f5d;
}

.page-contact .contact-card__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(22px, 2.6vw, 27px);
  letter-spacing: -0.01em;
  color: var(--char-900);
}

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

.page-contact .contact-card__row {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(22, 18, 12, 0.14);
}

.page-contact .contact-card__row:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-contact .contact-card__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: #7a6f5d;
}

.page-contact .contact-card__val {
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--char-900);
  text-decoration: none;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact a.contact-card__val {
  display: inline-block;
  border-bottom: 2px solid var(--lime-500);
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact a.contact-card__val:hover,
.page-contact a.contact-card__val:focus-visible {
  background: var(--lime-500);
}

.page-contact .contact-card__foot {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px dashed rgba(22, 18, 12, 0.24);
  font-size: 13.5px;
  line-height: 1.72;
  color: #5d5446;
}

/* ---------- 三件事 ---------- */

.page-contact .channel-band {
  padding: var(--section-y) 0;
  background: var(--ink-900);
  border-top: 1px solid var(--ink-700);
  border-bottom: 1px solid var(--ink-700);
}

.page-contact .channel-band__grid {
  display: grid;
  gap: clamp(26px, 4vw, 54px);
}

.page-contact .channel-band__head h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--paper-50);
}

.page-contact .channel-band__lead {
  margin: 0;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist-200);
}

.page-contact .channel-band__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .channel-band__list > li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 6px;
  padding: 18px 0;
  border-top: 1px solid rgba(18, 96, 74, 0.62);
}

.page-contact .channel-band__list > li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .channel-band__num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  color: var(--lime-500);
}

.page-contact .channel-band__list h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper-50);
}

.page-contact .channel-band__list p {
  grid-column: 2;
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--mist-200);
}

/* ---------- 来意指引 ---------- */

.page-contact .intent-section {
  padding: var(--section-y) 0;
}

.page-contact .intent-section__head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-contact .intent-section__head h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--paper-50);
}

.page-contact .intent-section__head p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist-200);
}

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

.page-contact .intent__radio {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .intent__tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-contact .intent__tab {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 16px 14px;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-md);
  background: rgba(11, 51, 42, 0.55);
  cursor: pointer;
  transition: border-color 0.22s var(--ease), background-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-contact .intent__tab:hover {
  border-color: var(--lime-300);
  transform: translateY(-2px);
}

.page-contact .intent__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums;
  color: var(--amber-300);
}

.page-contact .intent__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--paper-50);
}

.page-contact #intent-consult:checked ~ .intent__tabs .intent__tab[for="intent-consult"],
.page-contact #intent-coop:checked ~ .intent__tabs .intent__tab[for="intent-coop"],
.page-contact #intent-fix:checked ~ .intent__tabs .intent__tab[for="intent-fix"],
.page-contact #intent-license:checked ~ .intent__tabs .intent__tab[for="intent-license"] {
  border-color: var(--lime-500);
  background: rgba(217, 246, 63, 0.14);
  box-shadow: inset 0 -3px 0 var(--lime-500);
}

.page-contact .intent__radio:focus-visible ~ .intent__tabs {
  outline: 2px dashed var(--lime-500);
  outline-offset: 6px;
}

.page-contact .intent__panel {
  display: none;
  max-width: 68ch;
  padding-left: clamp(16px, 2vw, 24px);
  border-left: 3px solid var(--lime-500);
}

.page-contact #intent-consult:checked ~ .intent__panels #intent-panel-consult,
.page-contact #intent-coop:checked ~ .intent__panels #intent-panel-coop,
.page-contact #intent-fix:checked ~ .intent__panels #intent-panel-fix,
.page-contact #intent-license:checked ~ .intent__panels #intent-panel-license {
  display: block;
  animation: contact-panel-in 0.28s var(--ease) both;
}

@keyframes contact-panel-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-contact .intent__panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(19px, 2.2vw, 24px);
  letter-spacing: -0.01em;
  color: var(--lime-300);
}

.page-contact .intent__panel p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist-200);
}

.page-contact .intent__need {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .intent__need li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper-50);
}

.page-contact .intent__need li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 12px;
  height: 2px;
  background: var(--amber-500);
}

.page-contact .intent__link {
  margin: 20px 0 0;
}

.page-contact .intent__link a {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--lime-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 246, 63, 0.4);
  padding-bottom: 2px;
}

.page-contact .intent__link a:hover {
  color: var(--lime-300);
  border-bottom-color: var(--lime-300);
}

/* ---------- 回复节奏 ---------- */

.page-contact .shift-section {
  padding: var(--section-y) 0;
}

.page-contact .shift-section__head {
  max-width: 58ch;
  margin-bottom: clamp(24px, 3.4vw, 38px);
}

.page-contact .shift-section__head h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--paper-50);
}

.page-contact .shift-section__head p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist-200);
}

.page-contact .shift {
  padding: clamp(22px, 3.2vw, 40px);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(11, 51, 42, 0.86), rgba(6, 32, 25, 0.5));
}

.page-contact .shift__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.page-contact .shift__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist-200);
}

.page-contact .shift__range {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.6vw, 36px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  color: var(--lime-500);
}

.page-contact .shift__track {
  height: 10px;
  margin: 24px 0 8px;
  border-radius: var(--radius-pill);
  background: rgba(203, 217, 207, 0.1);
  overflow: hidden;
}

.page-contact .shift__fill {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--lime-500), var(--amber-500));
}

.page-contact .shift__scale {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  color: rgba(203, 217, 207, 0.62);
}

.page-contact .shift__legend {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .shift__legend li {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 4px;
}

.page-contact .shift__dot {
  grid-row: 1 / span 2;
  margin-top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lime-500);
}

.page-contact .shift__legend li:nth-child(2) .shift__dot {
  background: var(--amber-500);
}

.page-contact .shift__legend strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--paper-50);
}

.page-contact .shift__legend span:last-child {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist-200);
}

.page-contact .shift__note {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px dashed rgba(18, 96, 74, 0.72);
  font-size: 14px;
  line-height: 1.76;
  color: rgba(203, 217, 207, 0.82);
}

/* ---------- 协作方向 ---------- */

.page-contact .collab-section {
  padding: var(--section-y) 0;
  background: var(--ink-900);
  border-top: 1px solid var(--ink-700);
}

.page-contact .collab-section__grid {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
  align-items: center;
}

.page-contact .collab-section__figure {
  margin: 0;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(140deg, var(--ink-900), var(--ink-950));
}

.page-contact .collab-section__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  opacity: 0.92;
}

.page-contact .collab-section__figure figcaption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: rgba(203, 217, 207, 0.68);
}

.page-contact .collab-section__body h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--paper-50);
}

.page-contact .collab-section__body > p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist-200);
}

.page-contact .collab-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .collab-list li {
  padding-left: 16px;
  border-left: 2px solid var(--ink-700);
}

.page-contact .collab-list h3 {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 700;
  color: var(--lime-300);
}

.page-contact .collab-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist-200);
}

.page-contact .collab-section__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 0;
}

.page-contact .collab-section__cta .btn {
  text-decoration: none;
}

/* ---------- 备案信息 ---------- */

.page-contact .contact-legal {
  padding: clamp(40px, 5.5vw, 76px) 0 clamp(64px, 9vw, 140px);
  background: var(--ink-950);
}

.page-contact .contact-legal__inner {
  display: grid;
  gap: 10px;
  padding-top: clamp(24px, 3vw, 34px);
  border-top: 1px solid var(--ink-700);
}

.page-contact .contact-legal__title {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(203, 217, 207, 0.6);
}

.page-contact .contact-legal__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin: 0;
}

.page-contact .contact-legal__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(203, 217, 207, 0.6);
}

.page-contact .contact-legal__val {
  font-family: var(--font-mono);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--mist-200);
}

.page-contact .contact-legal__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(203, 217, 207, 0.72);
}

.page-contact .contact-legal__links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin: 8px 0 0;
}

.page-contact .contact-legal__links a {
  font-size: 14px;
  color: var(--lime-300);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 246, 63, 0.36);
  padding-bottom: 1px;
}

.page-contact .contact-legal__links a:hover {
  color: var(--lime-500);
  border-bottom-color: var(--lime-500);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-contact .channel-band__list > li {
    grid-template-columns: 68px minmax(0, 1fr);
    column-gap: 20px;
  }

  .page-contact .channel-band__num {
    font-size: 32px;
  }

  .page-contact .shift__legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }
}

@media (min-width: 900px) {
  .page-contact .channel-band__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-contact .intent__tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
    gap: clamp(38px, 5vw, 64px);
  }

  .page-contact .contact-card {
    transform: translateY(-6px);
  }
}

@media (min-width: 980px) {
  .page-contact .collab-section__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(34px, 4.6vw, 62px);
  }
}

@media (min-width: 1200px) {
  .page-contact .channel-band__list > li {
    grid-template-columns: 84px minmax(0, 1fr);
  }

  .page-contact .channel-band__num {
    font-size: 38px;
  }
}

@media (max-width: 420px) {
  .page-contact .contact-hero__quick {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .page-contact .collab-section__cta {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .intent__panel,
  .page-contact #intent-consult:checked ~ .intent__panels #intent-panel-consult,
  .page-contact #intent-coop:checked ~ .intent__panels #intent-panel-coop,
  .page-contact #intent-fix:checked ~ .intent__panels #intent-panel-fix,
  .page-contact #intent-license:checked ~ .intent__panels #intent-panel-license {
    animation: none;
  }

  .page-contact .intent__tab,
  .page-contact .contact-hero__quick a,
  .page-contact a.contact-card__val {
    transition: none;
  }

  .page-contact .intent__tab:hover {
    transform: none;
  }
}