.page-contact {
  --contact-pad: clamp(1.25rem, 2.5vw, 2rem);
  --contact-gap: clamp(1.75rem, 4vw, 3rem);
  color: var(--c-ink);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(2rem, 5vw, 4rem)) 0 clamp(3rem, 6vw, 5rem);
  background:
    radial-gradient(130% 100% at 84% -14%, rgba(27, 76, 126, .95) 0%, rgba(14, 42, 71, 0) 60%),
    linear-gradient(168deg, var(--c-deep) 0%, #0b2138 58%, var(--c-ink) 100%);
  color: var(--c-cream);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(217, 222, 228, .065) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217, 222, 228, .065) 1px, transparent 1px);
  background-size: 76px 76px;
  -webkit-mask-image: radial-gradient(82% 74% at 28% 18%, #000 0%, transparent 78%);
  mask-image: radial-gradient(82% 74% at 28% 18%, #000 0%, transparent 78%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: -16%;
  right: -8%;
  width: min(46vw, 560px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 222, 228, .16) 0%, rgba(217, 222, 228, 0) 68%);
  pointer-events: none;
}

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

.page-contact .contact-hero .breadcrumb {
  color: rgba(246, 242, 233, .6);
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.page-contact .contact-hero .breadcrumb a {
  color: rgba(246, 242, 233, .88);
  text-decoration: none;
  border-bottom: 1px solid rgba(246, 242, 233, .28);
  padding-bottom: 1px;
}

.page-contact .contact-hero .breadcrumb a:hover {
  border-bottom-color: var(--c-signal);
  color: #fff;
}

.page-contact .contact-hero .breadcrumb-sep {
  margin: 0 .5rem;
  color: rgba(246, 242, 233, .38);
}

.page-contact .contact-hero .eyebrow {
  color: var(--c-signal);
  letter-spacing: .18em;
}

.page-contact .contact-hero .display {
  color: var(--c-cream);
  max-width: 20ch;
  margin: .9rem 0 0;
}

.page-contact .contact-hero .lede {
  color: rgba(246, 242, 233, .76);
  max-width: 48ch;
  margin-top: 1.35rem;
}

.page-contact .hero-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: end;
}

.page-contact .hero-split__aside {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.page-contact .calibration-badge {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .5rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 106, 43, .48);
  background: rgba(255, 106, 43, .1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  font-size: .78rem;
  letter-spacing: .05em;
  color: rgba(246, 242, 233, .94);
  white-space: nowrap;
}

.page-contact .calibration-badge__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-signal);
  box-shadow: 0 0 0 4px rgba(255, 106, 43, .18);
  flex: none;
}

.page-contact .calibration-badge__label {
  color: rgba(246, 242, 233, .6);
}

.page-contact .calibration-badge__value {
  font-weight: 700;
}

.page-contact .hero-facts {
  width: 100%;
  margin: 0;
  display: grid;
  gap: .7rem;
  padding: 1.2rem 1.35rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(217, 222, 228, .16);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.page-contact .hero-facts > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.25rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid rgba(217, 222, 228, .12);
}

.page-contact .hero-facts > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .hero-facts dt {
  font-size: .82rem;
  letter-spacing: .05em;
  color: rgba(246, 242, 233, .58);
  white-space: nowrap;
}

.page-contact .hero-facts dd {
  margin: 0;
  font-size: .92rem;
  color: var(--c-cream);
  text-align: right;
}

.page-contact .hero-facts .num {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  font-feature-settings: "tnum" 1;
  margin-right: .15rem;
}

.page-contact .hero-media {
  margin-top: clamp(2rem, 4.5vw, 3.5rem);
  border-radius: var(--radius-lg);
}

.page-contact .hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 42, 71, 0) 46%, rgba(14, 42, 71, .6) 100%);
  pointer-events: none;
}

.page-contact .hero-media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .hero-media .media-caption {
  color: rgba(246, 242, 233, .7);
  z-index: 1;
}

/* ---------- 通用区块头 ---------- */
.page-contact .block-head {
  max-width: 62ch;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.page-contact .block-head--tight {
  margin-bottom: .75rem;
}

.page-contact .block-head .eyebrow {
  color: var(--c-star);
  letter-spacing: .18em;
}

.page-contact .block-head__note {
  margin: .9rem 0 0;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .block-head__note a,
.page-contact .roster-tail a,
.page-contact .after-step p a {
  color: var(--c-star);
  text-decoration: none;
  border-bottom: 1px solid rgba(27, 76, 126, .35);
}

.page-contact .block-head__note a:hover,
.page-contact .roster-tail a:hover,
.page-contact .after-step p a:hover {
  border-bottom-color: var(--c-signal);
  color: var(--c-deep);
}

/* ---------- 三种洽谈路径 ---------- */
.page-contact .path-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 2.2vw, 1.5rem);
}

.page-contact .path-card {
  display: flex;
  flex-direction: column;
  gap: .8rem;
  padding: var(--contact-pad);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow-card);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}

.page-contact .path-card:hover {
  transform: translateY(-4px);
  border-color: rgba(27, 76, 126, .3);
}

.page-contact .path-card--primary {
  background: linear-gradient(164deg, var(--c-star) 0%, var(--c-deep) 82%);
  border-color: transparent;
  box-shadow: 0 30px 60px -40px rgba(14, 42, 71, .9);
}

.page-contact .path-card--primary:hover {
  border-color: transparent;
}

.page-contact .path-card__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--c-signal);
}

.page-contact .path-card .h3 {
  margin: 0;
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  line-height: 1.35;
}

.page-contact .path-card__who {
  margin: 0;
  padding-left: .85rem;
  border-left: 3px solid var(--c-signal);
  font-size: .89rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .path-card__body {
  margin: 0;
  font-size: .93rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .path-card .btn {
  margin-top: auto;
  align-self: flex-start;
}

.page-contact .path-card--primary .h3 {
  color: var(--c-cream);
}

.page-contact .path-card--primary .path-card__who {
  color: rgba(246, 242, 233, .82);
  border-left-color: var(--c-signal);
}

.page-contact .path-card--primary .path-card__body {
  color: rgba(246, 242, 233, .7);
}

/* ---------- 名录与准备清单 ---------- */
.page-contact .coop-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  align-items: start;
}

.page-contact .coop-layout__roster {
  min-width: 0;
}

.page-contact .coop-layout__prep {
  min-width: 0;
}

.page-contact .roster {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0 0 0 1.5rem;
  border-left: 1px solid rgba(16, 28, 41, .13);
}

.page-contact .roster-item {
  display: grid;
  grid-template-columns: 3.6rem minmax(0, 1fr);
  gap: 0 1rem;
  align-items: baseline;
  padding: .95rem 0;
  border-bottom: 1px solid rgba(16, 28, 41, .09);
  transition: background-color .28s var(--ease);
}

.page-contact .roster-item:last-child {
  border-bottom: 0;
}

.page-contact .roster-item:hover {
  background: rgba(255, 106, 43, .045);
}

.page-contact .roster-year {
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--c-deep);
  font-feature-settings: "tnum" 1;
  transition: color .28s var(--ease);
}

.page-contact .roster-item:hover .roster-year {
  color: var(--c-signal);
}

.page-contact .roster-body {
  min-width: 0;
}

.page-contact .roster-name {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-ink);
}

.page-contact .roster-meta {
  margin: .3rem 0 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--c-rock);
}

.page-contact .roster-tail {
  margin: 1.5rem 0 0;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .prep-list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 1.9rem minmax(0, 1fr);
  gap: .9rem;
  align-items: start;
  padding: .95rem 1.05rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(16, 28, 41, .1);
  background: rgba(255, 255, 255, .66);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-plaque);
  transition: border-color .28s var(--ease), background-color .28s var(--ease);
}

.page-contact .prep-item:hover {
  border-color: rgba(255, 106, 43, .55);
  background: rgba(255, 255, 255, .9);
}

.page-contact .prep-item__idx {
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--c-star);
  padding-top: .12rem;
}

.page-contact .prep-item__label {
  margin: 0;
  font-size: .95rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-ink);
}

.page-contact .prep-item__hint {
  margin: .3rem 0 0;
  font-size: .85rem;
  line-height: 1.7;
  color: var(--ink-faint);
}

.page-contact .prep-media {
  margin: 1.5rem 0 0;
  border-radius: var(--radius-md);
}

.page-contact .prep-media img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 表单字段说明 ---------- */
.page-contact .field-groups {
  display: grid;
  gap: 0;
}

.page-contact .field-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: .85rem;
  padding: clamp(1.35rem, 2.6vw, 2.1rem) 0;
  border-top: 1px solid rgba(16, 28, 41, .13);
}

.page-contact .field-group:last-child {
  border-bottom: 1px solid rgba(16, 28, 41, .13);
}

.page-contact .field-group__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--c-deep);
  position: relative;
  padding-left: 1rem;
}

.page-contact .field-group__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: .35em;
  width: 3px;
  height: 1em;
  border-radius: 2px;
  background: var(--c-signal);
}

.page-contact .field-list {
  margin: 0;
  display: grid;
  gap: .9rem;
}

.page-contact .field-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: .2rem .95rem;
  padding-bottom: .85rem;
  border-bottom: 1px dashed rgba(16, 28, 41, .12);
}

.page-contact .field-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .field-name {
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .035em;
  line-height: 1.6;
  color: var(--c-star);
}

.page-contact .field-why {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .field-why a {
  color: var(--c-star);
  text-decoration: none;
  border-bottom: 1px solid rgba(27, 76, 126, .35);
}

/* ---------- 洽谈之后 ---------- */
.page-contact .contact-after {
  background: linear-gradient(158deg, var(--c-ink) 0%, #0a1a2b 100%);
  color: var(--c-cream);
  position: relative;
  overflow: hidden;
}

.page-contact .contact-after::before {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: min(52vw, 620px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 140, 134, .15) 0%, rgba(46, 140, 134, 0) 68%);
  pointer-events: none;
}

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

.page-contact .contact-after .eyebrow {
  color: var(--c-signal);
  letter-spacing: .18em;
}

.page-contact .contact-after .h2 {
  color: var(--c-cream);
}

.page-contact .contact-after .block-head__note {
  color: rgba(246, 242, 233, .66);
}

.page-contact .after-steps {
  list-style: none;
  margin: clamp(1.5rem, 3vw, 2.5rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(217, 222, 228, .16);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-contact .after-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: var(--contact-pad) var(--contact-pad) calc(var(--contact-pad) + .35rem);
  background: var(--c-deep);
  transition: background-color .28s var(--ease);
}

.page-contact .after-step:hover {
  background: var(--c-star);
}

.page-contact .after-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: var(--c-signal);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .32s var(--ease);
}

.page-contact .after-step:hover::before {
  transform: scaleX(1);
}

.page-contact .after-step__no {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--c-signal);
}

.page-contact .after-step .h3 {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.45;
  color: var(--c-cream);
}

.page-contact .after-step p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.8;
  color: rgba(246, 242, 233, .7);
}

.page-contact .after-step p a {
  color: #fff;
  border-bottom-color: rgba(255, 106, 43, .6);
}

/* ---------- 服务渠道 ---------- */
.page-contact .channel-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 2.2vw, 1.5rem);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: var(--contact-pad);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(16, 28, 41, .13);
  background: #fff;
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: rgba(27, 76, 126, .3);
}

.page-contact .channel-card--signal {
  border: 2px solid var(--c-signal);
  background: linear-gradient(172deg, rgba(255, 106, 43, .09) 0%, #fff 62%);
}

.page-contact .channel-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--c-rock);
}

.page-contact .channel-card__value {
  margin: 0;
  font-size: clamp(1rem, 1.7vw, 1.16rem);
  font-weight: 700;
  line-height: 1.55;
  color: var(--c-deep);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-card__note {
  margin: 0;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 常见问题 ---------- */
.page-contact .faq-list {
  display: grid;
  gap: .7rem;
  max-width: 68rem;
}

.page-contact .fold {
  border: 1px solid rgba(16, 28, 41, .13);
  border-radius: var(--radius-md);
  background: #fff;
  overflow: hidden;
  transition: border-color .28s var(--ease);
}

.page-contact .fold:hover {
  border-color: rgba(27, 76, 126, .3);
}

.page-contact .fold summary {
  cursor: pointer;
  list-style: none;
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: .98rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-deep);
}

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

.page-contact .fold summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: -4px;
  border-right: 2px solid var(--c-rock);
  border-bottom: 2px solid var(--c-rock);
  transform: rotate(45deg);
  transition: transform .28s var(--ease), border-color .28s var(--ease), margin-top .28s var(--ease);
}

.page-contact .fold[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 4px;
  border-color: var(--c-signal);
}

.page-contact .fold-body {
  padding: 0 1.25rem 1.2rem;
  font-size: .93rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .fold-body p {
  margin: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .field-row {
    grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .roster-item {
    grid-template-columns: 4.5rem minmax(0, 1fr);
    gap: 0 1.35rem;
  }
}

@media (min-width: 768px) {
  .page-contact .path-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 960px) {
  .page-contact .hero-split {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, .7fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-contact .hero-split__aside {
    align-items: stretch;
  }

  .page-contact .field-group {
    grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
    gap: 0 2.5rem;
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-contact .coop-layout {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-contact .path-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, .95fr);
    align-items: stretch;
  }

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

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

@media (max-width: 420px) {
  .page-contact .hero-facts > div {
    flex-direction: column;
    align-items: flex-start;
    gap: .25rem;
  }

  .page-contact .hero-facts dd {
    text-align: left;
  }

  .page-contact .roster-item {
    grid-template-columns: 3rem minmax(0, 1fr);
    gap: 0 .75rem;
  }
}