.page-contact {
  overflow-x: clip;
}

/* ---------- 面包屑与首屏 ---------- */
.page-contact .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .35rem;
  margin: 0 0 clamp(22px, 4vw, 40px);
  padding: 0;
  list-style: none;
  font-size: var(--step--1);
  color: var(--mist);
}

.page-contact .crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.page-contact .crumbs li + li::before {
  content: "/";
  margin-right: .35rem;
  color: var(--rock);
}

.page-contact .crumbs [aria-current="page"] {
  color: var(--cream);
}

.page-contact .contact-hero {
  position: relative;
  padding: clamp(28px, 6vw, 64px) 0 clamp(36px, 7vw, 80px);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: 12%;
  right: -14%;
  width: clamp(180px, 34vw, 460px);
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at 30% 30%, rgba(53, 224, 200, .28), transparent 62%),
    radial-gradient(circle at 72% 68%, rgba(255, 138, 61, .22), transparent 60%);
  filter: blur(6px);
  pointer-events: none;
}

.page-contact .hero-grid {
  display: grid;
  gap: clamp(26px, 5vw, 52px);
}

.page-contact .contact-hero h1 {
  margin: .35rem 0 .7rem;
  font-size: var(--step-5);
  line-height: 1.04;
  letter-spacing: -.02em;
  font-weight: 800;
}

.page-contact .contact-hero .lede {
  max-width: 42ch;
}

.page-contact .hero-facts {
  align-self: end;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-l);
  overflow: hidden;
}

.page-contact .fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 16px 20px;
  background: var(--ink-2);
}

.page-contact .fact__key {
  font-size: var(--step--1);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .fact__value {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  font-weight: 700;
  color: var(--teal);
}

.page-contact .fact__note {
  margin: 0;
  padding: 16px 20px;
  background: var(--ink-2);
  font-size: var(--step--1);
  color: var(--mist);
  line-height: 1.7;
}

/* ---------- 三条通道 ---------- */
.page-contact .channels-band {
  padding-block: clamp(44px, 8vw, 88px);
}

.page-contact .channels {
  display: grid;
  gap: 16px;
  margin-top: clamp(22px, 4vw, 36px);
}

.page-contact .channel {
  position: relative;
  padding: clamp(20px, 3.4vw, 30px) clamp(20px, 3.4vw, 30px) clamp(22px, 3.4vw, 30px) calc(clamp(20px, 3.4vw, 30px) + 10px);
  background: var(--ink-2);
  border: 1px solid var(--line-faint);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: var(--ch-accent, var(--teal));
}

.page-contact .channel--mail { --ch-accent: var(--teal); }
.page-contact .channel--phone { --ch-accent: var(--amber); }
.page-contact .channel--addr { --ch-accent: var(--moss); }

.page-contact .channel__label {
  margin: 0 0 .8rem;
  font-size: var(--step--1);
  letter-spacing: .22em;
  color: var(--ch-accent, var(--teal));
}

.page-contact .channel__name {
  margin: 0 0 .6rem;
  font-size: var(--step-1);
  font-weight: 700;
}

.page-contact .channel__value {
  margin: 0 0 .9rem;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  font-weight: 700;
  color: var(--cream);
  overflow-wrap: anywhere;
}

.page-contact .channel__fit {
  margin: 0;
  font-size: var(--step--1);
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 响应时效 ---------- */
.page-contact .response-band {
  padding-block: clamp(44px, 8vw, 92px);
}

.page-contact .response-grid {
  display: grid;
  gap: clamp(26px, 5vw, 56px);
}

.page-contact .response-copy h2 {
  margin: .3rem 0 .9rem;
  font-size: var(--step-3);
  line-height: 1.16;
}

.page-contact .response-copy p {
  margin: 0 0 1rem;
  color: var(--mist);
  line-height: 1.8;
}

.page-contact .response-points {
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .response-points li {
  position: relative;
  padding-left: 22px;
  font-size: var(--step--1);
  line-height: 1.75;
  color: var(--cream);
}

.page-contact .response-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 10px;
  height: 2px;
  background: var(--amber);
}

.page-contact .contact-figure {
  margin: 0;
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-l);
  background: var(--ink-2);
}

.page-contact .contact-figure--info img {
  aspect-ratio: 12 / 7;
}

.page-contact .contact-figure--terrain img {
  aspect-ratio: 2 / 1;
  opacity: .9;
}

.page-contact .contact-figure figcaption {
  margin-top: .8rem;
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 提交清单 ---------- */
.page-contact .checklist-band {
  padding-block: clamp(44px, 8vw, 88px);
}

.page-contact .checklist {
  display: grid;
  gap: 12px;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .checklist li {
  display: flex;
  gap: .85rem;
  align-items: flex-start;
  padding: 16px 18px;
  background: rgba(11, 27, 58, .06);
  border: 1px solid rgba(51, 60, 74, .35);
  border-radius: var(--radius);
  color: var(--ink);
  line-height: 1.75;
}

.page-contact .check-box {
  flex: 0 0 auto;
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: .3em;
  border: 2px solid var(--teal);
  border-radius: 6px;
  background: rgba(53, 224, 200, .12);
}

.page-contact .check-box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--teal);
  border-bottom: 2px solid var(--teal);
  transform: rotate(40deg);
}

.page-contact .checklist strong {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 处理流程 ---------- */
.page-contact .flow-band {
  padding-block: clamp(44px, 8vw, 92px);
}

.page-contact .flow {
  display: grid;
  gap: 0;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .flow li {
  position: relative;
  padding: 0 0 30px 56px;
}

.page-contact .flow li::after {
  content: "";
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: 4px;
  width: 1px;
  background: var(--line-soft);
}

.page-contact .flow li:last-child {
  padding-bottom: 0;
}

.page-contact .flow li:last-child::after {
  display: none;
}

.page-contact .flow__num {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line-soft);
  border-radius: 50%;
  font-size: var(--step--1);
  letter-spacing: .06em;
  color: var(--teal);
  background: var(--ink);
}

.page-contact .flow__name {
  margin: .35rem 0 .4rem;
  font-size: var(--step-1);
  font-weight: 700;
}

.page-contact .flow li p {
  margin: 0;
  font-size: var(--step--1);
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 内容协作 ---------- */
.page-contact .partner-band {
  padding-block: clamp(44px, 8vw, 92px);
}

.page-contact .partner-grid {
  display: grid;
  gap: clamp(26px, 5vw, 56px);
}

.page-contact .partner-copy h2 {
  margin: .3rem 0 .9rem;
  font-size: var(--step-3);
  line-height: 1.16;
}

.page-contact .partner-copy > p {
  margin: 0 0 1.1rem;
  color: var(--mist);
  line-height: 1.8;
}

.page-contact .partner-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line-faint);
  padding-top: 16px;
}

.page-contact .partner-list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--step--1);
  line-height: 1.75;
  color: var(--cream);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .65em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--magenta);
}

.page-contact .partner-list strong {
  color: var(--cream);
  font-weight: 700;
}

.page-contact .partner-note {
  margin: 1.2rem 0 0;
  padding: 14px 18px;
  border-left: 2px solid var(--amber);
  background: rgba(255, 138, 61, .08);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  font-size: var(--step--1);
  line-height: 1.8;
  color: var(--cream);
}

/* ---------- 相关入口 ---------- */
.page-contact .next-band {
  padding-block: clamp(40px, 7vw, 80px);
}

.page-contact .next-grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-contact .next-grid h2 {
  margin: .3rem 0 .7rem;
  font-size: var(--step-2);
  line-height: 1.2;
}

.page-contact .next-grid p {
  margin: 0;
  max-width: 46ch;
  color: var(--mist);
  line-height: 1.8;
}

.page-contact .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    background: var(--line-faint);
    border: 1px solid var(--line-faint);
    border-radius: var(--radius-l);
    overflow: hidden;
  }

  .page-contact .channel {
    border: 0;
    border-radius: 0;
  }

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

  .page-contact .next-grid {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-contact .next-links {
    justify-content: flex-end;
    max-width: 30rem;
  }
}

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .9fr);
    align-items: end;
  }

  .page-contact .response-grid,
  .page-contact .partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
  }

  .page-contact .partner-grid .partner-copy {
    order: 2;
  }

  .page-contact .partner-grid .contact-figure {
    order: 1;
  }

  .page-contact .flow {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .flow li {
    padding: 62px 0 0;
  }

  .page-contact .flow li::after {
    left: 48px;
    right: -22px;
    top: 19px;
    bottom: auto;
    width: auto;
    height: 1px;
  }

  .page-contact .flow li:last-child::after {
    display: none;
  }

  .page-contact .flow__num {
    width: 40px;
    height: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .crumbs a {
    transition: none;
  }
}