.page-contact {
  background: var(--bone-050);
  color: var(--ink-900);
}

/* 面包屑 */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 18px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rock-500);
}
.page-contact .breadcrumb a {
  color: var(--deep-700);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease);
}
.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  border-bottom-color: var(--cyber-400);
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  margin-top: 18px;
  padding-block: clamp(36px, 7vw, 88px);
  background: var(--deep-900);
  color: var(--bone-050);
  overflow: hidden;
}
.page-contact .hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.page-contact .hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  filter: saturate(0.65) contrast(1.05);
}
.page-contact .hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, rgba(11, 30, 45, 0.94) 0%, rgba(11, 30, 45, 0.7) 48%, rgba(18, 50, 71, 0.93) 100%);
}
.page-contact .hero-grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}
.page-contact .hero-title {
  margin: 12px 0 18px;
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.06;
  font-weight: 300;
  letter-spacing: -0.015em;
  font-style: italic;
  font-stretch: condensed;
}
.page-contact .hero-lead {
  max-width: 34em;
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-dim);
}
.page-contact .hero-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-contact .hero-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--bone-050);
}
.page-contact .hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 12px;
  height: 2px;
  background: var(--coral-500);
}

.page-contact .hero-card {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-l);
  background: rgba(18, 50, 71, 0.58);
  backdrop-filter: blur(10px);
  box-shadow: 0 20px 44px rgba(11, 30, 45, 0.45);
}
.page-contact .hero-card__label {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyber-400);
}
.page-contact .hero-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.4vw, 26px);
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--bone-050);
  word-break: break-word;
}
.page-contact .hero-card__value--sm {
  font-size: clamp(16px, 2.6vw, 19px);
  color: var(--paper-100);
}
.page-contact .hero-card__rule {
  height: 1px;
  margin: 16px 0;
  background: var(--line);
}
.page-contact .hero-card__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-mute);
}
.page-contact .hero-card__note a {
  color: var(--cyber-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 230, 214, 0.45);
}

/* 通用章节 */
.page-contact .section {
  padding-block: clamp(44px, 7vw, 80px);
}
.page-contact .section__head {
  margin-bottom: clamp(22px, 4vw, 36px);
}
.page-contact .h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.2;
  font-weight: 400;
  letter-spacing: -0.01em;
}

/* 联系渠道 */
.page-contact .channels {
  background: var(--bone-050);
}
.page-contact .channels__intro {
  max-width: 46em;
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--deep-700);
}
.page-contact .channels__grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}
.page-contact .channel {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: var(--paper-100);
}
.page-contact .channel--mail {
  background: var(--deep-900);
  border-color: transparent;
  color: var(--bone-050);
}
.page-contact .channel--phone {
  background: var(--paper-100);
  border-left: 3px solid var(--coral-500);
}
.page-contact .channel--addr {
  background: transparent;
  border: 1px dashed var(--moss-600);
}
.page-contact .channel__title {
  margin: 14px 0 8px;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.page-contact .channel__value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.8vw, 20px);
  line-height: 1.45;
  letter-spacing: 0.01em;
  word-break: break-word;
}
.page-contact .channel--mail .channel__value {
  font-size: clamp(17px, 3.2vw, 23px);
  color: var(--cyber-400);
}
.page-contact .channel--phone .channel__value--xl {
  font-size: clamp(26px, 6vw, 40px);
  color: var(--deep-900);
  letter-spacing: 0.02em;
}
.page-contact .channel__text {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--deep-700);
}
.page-contact .channel--mail .channel__text {
  color: var(--text-dim);
}
.page-contact .channel__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rock-500);
}
.page-contact .channel--mail .channel__meta {
  color: var(--cyber-400);
}

/* 服务时间 */
.page-contact .service {
  background: var(--paper-100);
  border-block: 1px solid rgba(107, 124, 133, 0.2);
}
.page-contact .service__grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}
.page-contact .service__big {
  margin: 16px 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 5.6vw, 44px);
  line-height: 1.15;
  color: var(--deep-700);
}
.page-contact .service__big .num {
  color: var(--coral-500);
}
.page-contact .service__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-900);
}
.page-contact .service__scope-title {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--deep-900);
}
.page-contact .scope-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}
.page-contact .scope-list li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid rgba(107, 124, 133, 0.28);
}
.page-contact .scope-list li:last-child {
  border-bottom: 1px solid rgba(107, 124, 133, 0.28);
}
.page-contact .scope-list__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss-600);
}
.page-contact .scope-list__desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-900);
}
.page-contact .service__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 20px 0 0;
}
.page-contact .text-link {
  font-size: 13.5px;
  color: var(--deep-700);
  text-decoration: none;
  border-bottom: 1px solid var(--cyber-400);
  padding-bottom: 2px;
}
.page-contact .text-link:hover,
.page-contact .text-link:focus-visible {
  color: var(--coral-500);
  border-bottom-color: var(--coral-500);
}

/* 反馈流程 */
.page-contact .flow {
  background: var(--deep-900);
  color: var(--bone-050);
}
.page-contact .flow__head {
  max-width: 48em;
  margin-bottom: clamp(20px, 3vw, 30px);
}
.page-contact .flow__title {
  color: var(--bone-050);
}
.page-contact .flow__lead {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}
.page-contact .flow__figure {
  margin: 0 0 clamp(28px, 5vw, 46px);
}
.page-contact .flow__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-m);
  filter: saturate(0.7);
  opacity: 0.9;
}
.page-contact .flow__figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-mute);
}
.page-contact .flow__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 28px;
}
.page-contact .flow__step {
  position: relative;
  padding-top: 52px;
}
.page-contact .flow__step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 18px;
  top: 46px;
  bottom: -28px;
  width: 0;
  border-left: 1px dashed rgba(46, 230, 214, 0.32);
}
.page-contact .flow__num {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--deep-700);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cyber-400);
}
.page-contact .flow__step-title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 500;
  color: var(--bone-050);
}
.page-contact .flow__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}
.page-contact .flow__details {
  display: grid;
  gap: 12px;
  margin-top: clamp(30px, 5vw, 48px);
}
.page-contact .flow__detail {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(18, 50, 71, 0.55);
  padding: 16px 18px;
}
.page-contact .flow__detail summary {
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  color: var(--cyber-400);
  list-style: none;
}
.page-contact .flow__detail summary::-webkit-details-marker {
  display: none;
}
.page-contact .flow__detail summary::before {
  content: "+";
  display: inline-block;
  width: 1.2em;
  font-family: var(--font-mono);
  color: var(--coral-500);
}
.page-contact .flow__detail[open] summary::before {
  content: "–";
}
.page-contact .flow__detail ul {
  margin: 12px 0 0;
  padding-left: 1.2em;
  display: grid;
  gap: 8px;
}
.page-contact .flow__detail li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* 合作 */
.page-contact .coop {
  background: var(--bone-050);
}
.page-contact .coop__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}
.page-contact .coop__text p {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--deep-700);
}
.page-contact .coop__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.page-contact .coop__list li {
  padding: 18px 20px;
  border-radius: var(--radius-m);
  border: 1px solid rgba(78, 110, 93, 0.42);
  background: rgba(231, 227, 214, 0.55);
}
.page-contact .coop__list h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 500;
  color: var(--moss-600);
}
.page-contact .coop__list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-900);
}

/* 快捷入口 */
.page-contact .shortcuts {
  background: var(--deep-700);
  color: var(--bone-050);
}
.page-contact .shortcuts__head {
  margin-bottom: clamp(20px, 3vw, 28px);
}
.page-contact .shortcuts .h2 {
  color: var(--bone-050);
}
.page-contact .shortcuts__grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}
.page-contact .shortcut {
  display: grid;
  gap: 6px;
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(11, 30, 45, 0.42);
  text-decoration: none;
  color: var(--bone-050);
  transition: border-color 200ms var(--ease), transform 200ms var(--ease);
}
.page-contact .shortcut:hover,
.page-contact .shortcut:focus-visible {
  border-color: var(--cyber-400);
  transform: translateY(-2px);
}
.page-contact .shortcut__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--coral-500);
}
.page-contact .shortcut__name {
  font-size: 17px;
  font-weight: 500;
}
.page-contact .shortcut__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-mute);
}
.page-contact .shortcuts__foot {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--text-mute);
}

/* 响应式 */
@media (min-width: 720px) {
  .page-contact .channels__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-contact .channel--addr {
    grid-column: span 2;
  }
  .page-contact .flow__details {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-contact .shortcuts__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-contact .channels__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }
  .page-contact .channel--addr {
    grid-column: span 2;
    display: grid;
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
    gap: 6px 28px;
    align-items: start;
  }
  .page-contact .channel--addr .tag {
    grid-column: 1;
  }
  .page-contact .channel--addr .channel__title {
    grid-column: 1;
    margin-top: 0;
  }
  .page-contact .channel--addr .channel__value {
    grid-column: 1;
  }
  .page-contact .channel--addr .channel__text {
    grid-column: 2;
    grid-row: 1 / span 3;
    margin: 0;
  }
  .page-contact .service__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
  .page-contact .flow__steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }
  .page-contact .flow__step:not(:last-child)::after {
    left: 56px;
    right: -32px;
    top: 18px;
    bottom: auto;
    width: auto;
    height: 0;
    border-left: 0;
    border-top: 1px dashed rgba(46, 230, 214, 0.32);
  }
  .page-contact .coop__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-contact .shortcuts__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1200px) {
  .page-contact .flow__figure {
    max-width: 880px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .shortcut,
  .page-contact .breadcrumb a {
    transition: none;
  }
  .page-contact .shortcut:hover,
  .page-contact .shortcut:focus-visible {
    transform: none;
  }
}