.page-contact {
  --contact-line: var(--grid);
  --contact-soft: rgba(12, 23, 32, 0.62);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
}

.page-contact .contact-crumb {
  padding-top: 26px;
  padding-bottom: 10px;
  font-size: 13px;
}

/* ---------- 首屏框架 ---------- */
.page-contact .contact-hero__inner {
  position: relative;
  display: grid;
  gap: 34px;
  padding: 32px 20px 44px;
  border: 1px solid var(--contact-line);
  background-image: linear-gradient(to bottom, rgba(198, 204, 199, 0.18) 1px, transparent 1px);
  background-size: 100% 46px;
  background-color: var(--paper);
}

.page-contact .contact-hero__inner::before,
.page-contact .contact-hero__inner::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--whistle);
}

.page-contact .contact-hero__inner::before {
  top: -1px;
  left: -1px;
}

.page-contact .contact-hero__inner::after {
  bottom: -1px;
  right: -1px;
}

.page-contact .contact-hero__main h1 {
  margin: 14px 0 20px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(34px, 8vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.page-contact .contact-hero__lede {
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__facts {
  display: grid;
  gap: 0;
  border-top: 2px solid var(--green);
}

.page-contact .contact-hero__facts > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .contact-hero__facts dt {
  font-size: 13px;
  color: var(--contact-soft);
}

.page-contact .contact-hero__facts dd {
  font-size: 13px;
  font-weight: 600;
  color: var(--green-deep);
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-sec {
  padding-block: 48px;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .contact-sec__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px 16px;
  align-items: start;
  margin-bottom: 30px;
}

.page-contact .contact-sec__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 34px;
  padding: 0 6px;
  border: 1px solid var(--ink);
  background: transparent;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.04em;
}

.page-contact .contact-sec__num--dark {
  border-color: var(--whistle);
  color: var(--whistle);
}

.page-contact .contact-sec__head h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(24px, 5.2vw, 34px);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.page-contact .contact-sec__head p {
  margin-top: 12px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 渠道卡 ---------- */
.page-contact .contact-channels {
  display: grid;
  gap: 26px;
}

.page-contact .contact-channels__cards {
  display: grid;
  gap: 18px;
}

.page-contact .channel-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--contact-line);
  border-top: 3px solid var(--green);
  padding: 20px 18px 22px;
  transition: transform 180ms ease-out, border-color 180ms ease-out;
}

.page-contact .channel-card--b {
  border-top-color: var(--ink);
}

.page-contact .channel-card--c {
  border-top-color: var(--amber);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateX(8px);
  border-color: var(--green);
}

.page-contact .channel-card__tag {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--green);
}

.page-contact .channel-card--b .channel-card__tag {
  color: var(--ink);
}

.page-contact .channel-card--c .channel-card__tag {
  color: var(--amber);
}

.page-contact .channel-card h3 {
  margin: 10px 0 12px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.4;
}

.page-contact .channel-card p {
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink-2);
}

.page-contact .channel-card__list {
  margin: 16px 0 18px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--contact-line);
}

.page-contact .channel-card__list li {
  padding: 9px 0;
  border-bottom: 1px solid var(--contact-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--contact-soft);
}

.page-contact .channel-card__link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--green-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--green);
  padding-bottom: 2px;
}

.page-contact .channel-card__link:hover {
  border-bottom-color: var(--whistle);
}

.page-contact .contact-channels__media {
  position: relative;
  border: 1px solid var(--contact-line);
  background: var(--card);
  overflow: hidden;
}

.page-contact .contact-channels__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 4;
}

.page-contact .contact-channels__media figcaption {
  padding: 10px 12px;
  font-size: 12px;
  color: var(--contact-soft);
  border-top: 1px solid var(--contact-line);
  background: var(--paper);
}

/* ---------- 五步流程 ---------- */
.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .flow__step {
  position: relative;
  padding: 4px 0 24px 26px;
  border-left: 1px solid var(--contact-line);
}

.page-contact .flow__step:last-child {
  padding-bottom: 6px;
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 8px;
  width: 7px;
  height: 7px;
  background: var(--green);
}

.page-contact .flow__step--end {
  border-left-color: var(--whistle);
}

.page-contact .flow__step--end::before {
  background: var(--whistle);
  width: 9px;
  height: 9px;
  left: -5px;
}

.page-contact .flow__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--green);
}

.page-contact .flow__step h3 {
  margin: 6px 0 8px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 19px;
}

.page-contact .flow__step p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
  max-width: 30em;
}

.page-contact .flow__note {
  margin-top: 26px;
  padding: 14px 16px;
  background: var(--card);
  border-left: 3px solid var(--whistle);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- 联系信息卡 ---------- */
.page-contact .contact-sec--reach {
  border-bottom: none;
}

.page-contact .contact-reach__card {
  position: relative;
  overflow: hidden;
  background: var(--green-deep);
  color: var(--on-dark);
}

.page-contact .contact-reach__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
}

.page-contact .contact-reach__card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(7, 58, 37, 0.94) 0%, rgba(7, 58, 37, 0.78) 100%);
}

.page-contact .contact-reach__body {
  position: relative;
  z-index: 1;
  padding: 30px 20px 34px;
}

.page-contact .contact-reach__body h2 {
  margin: 14px 0 12px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(24px, 5.4vw, 36px);
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-reach__lede {
  max-width: 32em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--on-dark);
}

.page-contact .contact-reach__list {
  display: grid;
  gap: 0;
  margin-top: 24px;
  border-top: 1px solid rgba(245, 242, 234, 0.28);
}

.page-contact .contact-reach__list > div {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(245, 242, 234, 0.22);
}

.page-contact .contact-reach__list dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--on-dark-dim);
}

.page-contact .contact-reach__list dd {
  font-size: 15px;
  font-weight: 600;
  color: var(--whistle);
  word-break: break-all;
}

.page-contact .contact-reach__tip {
  margin-top: 20px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--on-dark-dim);
  max-width: 34em;
}

/* ---------- 准备清单 ---------- */
.page-contact .prep {
  display: grid;
  gap: 0;
}

.page-contact .prep__set {
  padding: 18px 0 6px;
  border-top: 2px solid var(--ink);
}

.page-contact .prep__set:nth-child(2) {
  border-top-color: var(--green);
}

.page-contact .prep__set:nth-child(3) {
  border-top-color: var(--amber);
}

.page-contact .prep__set h3 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 10px;
}

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

.page-contact .prep__set li {
  display: flex;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--contact-line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-contact .prep__set li::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  margin-top: 9px;
  background: var(--green);
}

.page-contact .prep__subject {
  margin-top: 30px;
  padding: 18px 16px 20px;
  background: var(--card);
  border: 1px solid var(--contact-line);
}

.page-contact .prep__subject-title {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--green);
  margin-bottom: 12px;
}

.page-contact .prep__subject-list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .prep__subject-list li {
  font-size: 13px;
  line-height: 1.7;
  word-break: break-all;
}

.page-contact .prep__subject-list code {
  display: block;
  padding: 8px 10px;
  background: var(--paper);
  border-left: 2px solid var(--grid);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12.5px;
}

.page-contact .prep__subject-note {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--contact-soft);
}

.page-contact .prep__subject-note a {
  color: var(--green-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--green);
}

/* ---------- 合作与媒体 ---------- */
.page-contact .partner-grid {
  display: grid;
  gap: 18px;
}

.page-contact .partner-card {
  background: var(--card);
  border: 1px solid var(--contact-line);
  padding: 20px 18px 22px;
}

.page-contact .partner-card__kicker {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--green);
}

.page-contact .partner-card h3 {
  margin: 10px 0 12px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
}

.page-contact .partner-card p {
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink-2);
}

.page-contact .partner-card__link {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  color: var(--green-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--whistle);
  padding-bottom: 2px;
}

.page-contact .partner-card__link:hover {
  border-bottom-color: var(--green);
}

/* ---------- 备案 ---------- */
.page-contact .contact-record {
  padding-block: 40px 56px;
  background: var(--paper);
}

.page-contact .contact-record__inner {
  display: grid;
  gap: 18px;
  padding: 20px 18px;
  border: 1px solid var(--ink);
}

.page-contact .contact-record__text h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 20px;
  margin-bottom: 8px;
}

.page-contact .contact-record__text p {
  font-size: 14px;
  line-height: 1.82;
  color: var(--ink-2);
  max-width: 34em;
}

.page-contact .contact-record__icp {
  align-self: center;
  justify-self: start;
  padding: 8px 12px;
  border: 1px solid var(--grid);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  background: var(--card);
  white-space: nowrap;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-crumb {
    padding-top: 32px;
  }

  .page-contact .contact-hero__inner {
    padding: 40px 32px 52px;
  }

  .page-contact .contact-reach__body {
    padding: 44px 36px 48px;
  }

  .page-contact .contact-reach__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
  }

  .page-contact .prep {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 24px;
  }

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

  .page-contact .partner-card:nth-child(2) {
    margin-top: 26px;
  }

  .page-contact .partner-card:nth-child(3) {
    margin-top: 12px;
  }

  .page-contact .contact-record__inner {
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 24px 26px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-contact .contact-sec {
    padding-block: 64px;
  }

  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 48px;
    padding: 52px 44px 62px;
  }

  .page-contact .contact-hero__side {
    border-left: 1px solid var(--contact-line);
    padding-left: 28px;
  }

  .page-contact .contact-sec__head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 22px;
    margin-bottom: 38px;
  }

  .page-contact .contact-channels {
    grid-template-columns: minmax(0, 1fr) 236px;
    gap: 22px;
    align-items: start;
  }

  .page-contact .contact-channels__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
  }

  .page-contact .channel-card--b {
    margin-top: 40px;
  }

  .page-contact .channel-card--c {
    margin-top: 20px;
  }

  .page-contact .contact-channels__media {
    position: sticky;
    top: 84px;
  }

  .page-contact .contact-channels__media img {
    aspect-ratio: 3 / 4;
    height: auto;
  }

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

  .page-contact .flow__step {
    padding: 22px 20px 0 0;
    border-left: none;
    border-top: 1px solid var(--contact-line);
  }

  .page-contact .flow__step--end {
    border-top-color: var(--whistle);
    border-top-width: 2px;
  }

  .page-contact .flow__step::before {
    left: 0;
    top: -4px;
  }

  .page-contact .flow__step--end::before {
    left: -1px;
    top: -5px;
  }

  .page-contact .flow__step p {
    font-size: 13.5px;
  }

  .page-contact .flow__note {
    margin-top: 32px;
    padding: 16px 20px;
    max-width: none;
  }

  .page-contact .prep__set {
    padding-top: 22px;
  }

  .page-contact .prep__subject {
    padding: 22px 24px 24px;
  }

  .page-contact .prep__subject-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-channels {
    grid-template-columns: minmax(0, 1fr) 268px;
  }

  .page-contact .channel-card {
    padding: 24px 20px 26px;
  }
}

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

  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within {
    transform: none;
  }
}