.page-contact {
  --pc-gap: clamp(16px, 2.4vw, 26px);
  --pc-pad: clamp(18px, 2.6vw, 30px);
  --pc-radius: 2px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(26px, 4.5vw, 60px) clamp(22px, 3.5vw, 44px);
}

.page-contact .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5em;
  margin-bottom: clamp(18px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-contact .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.page-contact .contact-hero__grid {
  display: grid;
  gap: var(--pc-gap);
  align-items: center;
}

.page-contact .contact-hero .meta-line {
  margin: 0;
}

.page-contact .contact-hero h1 {
  margin: 0.35em 0 0.55em;
  font-size: clamp(30px, 5.4vw, 52px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 20ch;
}

.page-contact .contact-hero .lede {
  max-width: 46ch;
  color: var(--muted);
  margin: 0 0 clamp(20px, 3vw, 30px);
}

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

.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  background:
    radial-gradient(120% 90% at 78% 12%, rgba(87, 217, 163, 0.16), transparent 62%),
    radial-gradient(100% 80% at 12% 92%, rgba(142, 123, 239, 0.18), transparent 60%),
    var(--panel);
  box-shadow: inset 0 0 0 1px rgba(232, 238, 244, 0.03);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  mix-blend-mode: screen;
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-section {
  padding-block: clamp(30px, 4.6vw, 62px);
}

.page-contact .contact-section .section-title {
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.24;
  color: var(--text);
}

.page-contact .contact-section .section-lede {
  max-width: 62ch;
  color: var(--muted);
}

/* ---------- 01 三条通道 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 0.6em;
  padding: var(--pc-pad);
  border-top-width: 3px;
  border-top-style: solid;
  border-radius: var(--pc-radius);
  border-top-color: var(--amber);
}

.page-contact .channel-card:nth-child(2) {
  border-top-color: var(--lime);
}

.page-contact .channel-card:nth-child(3) {
  border-top-color: var(--violet);
}

.page-contact .channel-card__no {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted-dim);
}

.page-contact .channel-card__name {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .channel-card__value {
  margin: 0;
  font-size: clamp(13px, 3.5vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--amber);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-card:nth-child(2) .channel-card__value {
  color: var(--lime);
}

.page-contact .channel-card__value--text {
  font-family: var(--font-sans);
  font-size: clamp(15px, 3.8vw, 18px);
  font-weight: 700;
  letter-spacing: 0;
  color: var(--text);
  word-break: normal;
}

.page-contact .channel-card__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  flex: 1 1 auto;
}

.page-contact .channel-card__meta {
  margin: 0;
  padding-top: 0.85em;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.65;
}

/* ---------- 02 信息清单 ---------- */
.page-contact .checklist-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .checklist-figure {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  background: linear-gradient(160deg, rgba(87, 217, 163, 0.14), rgba(11, 27, 43, 0) 58%), var(--panel);
}

.page-contact .checklist-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.page-contact .checklist__label {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: var(--pc-radius);
  background: var(--panel);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-contact .checklist__label:hover {
  border-left-color: var(--lime);
}

.page-contact .checklist__label:has(.checklist__box:checked) {
  border-color: var(--lime);
  background: var(--panel-soft);
}

.page-contact .checklist__box {
  width: 18px;
  height: 18px;
  margin: 4px 0 0;
  accent-color: var(--lime);
  flex: none;
}

.page-contact .checklist__no {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted-dim);
  padding-top: 4px;
}

.page-contact .checklist__body {
  display: block;
  min-width: 0;
}

.page-contact .checklist__title {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.3em;
}

.page-contact .checklist__text {
  display: block;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 03 回复节奏 ---------- */
.page-contact .rhythm-bar {
  display: grid;
  grid-template-columns: 1fr 1.25fr 1fr;
  margin-top: clamp(20px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  overflow: hidden;
}

.page-contact .rhythm-bar__seg {
  padding: 13px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  text-align: center;
  color: var(--muted-dim);
  background: var(--panel);
  border-right: 1px solid var(--line);
  line-height: 1.4;
}

.page-contact .rhythm-bar__seg:last-child {
  border-right: 0;
}

.page-contact .rhythm-bar__seg--live {
  color: var(--lime);
  font-weight: 700;
  background: linear-gradient(180deg, rgba(87, 217, 163, 0.22), rgba(87, 217, 163, 0.06));
  box-shadow: inset 0 -3px 0 var(--lime);
}

.page-contact .rhythm-flow {
  list-style: none;
  margin: var(--pc-gap) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .rhythm-step {
  padding: var(--pc-pad);
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  background: var(--panel-soft);
}

.page-contact .rhythm-step__no {
  display: block;
  font-size: 20px;
  color: var(--violet);
  letter-spacing: 0.08em;
  margin-bottom: 0.4em;
}

.page-contact .rhythm-step__title {
  margin: 0 0 0.4em;
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
}

.page-contact .rhythm-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .rhythm-step__text a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 193, 78, 0.45);
  transition: border-color 0.2s var(--ease);
}

.page-contact .rhythm-step__text a:hover,
.page-contact .rhythm-step__text a:focus-visible {
  border-bottom-color: currentColor;
}

/* ---------- 04 合作咨询 ---------- */
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .coop-card {
  padding: var(--pc-pad);
  border-radius: var(--pc-radius);
  border-left: 3px solid var(--amber);
}

.page-contact .coop-card__title {
  margin: 0 0 0.5em;
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
}

.page-contact .coop-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 05 自助入口 ---------- */
.page-contact .serve-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .serve-link {
  display: flex;
  flex-direction: column;
  gap: 0.55em;
  padding: var(--pc-pad);
  text-decoration: none;
  color: inherit;
  border-radius: var(--pc-radius);
  border-left: 3px solid var(--lime);
}

.page-contact .serve-link__tag {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-contact .serve-link__title {
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .serve-link__text {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
  flex: 1 1 auto;
}

.page-contact .serve-link__go {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--amber);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .checklist {
    gap: 12px;
  }

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

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

  .page-contact .rhythm-step:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(24px, 4vw, 56px);
  }

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

  .page-contact .checklist-block {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: clamp(22px, 3.4vw, 44px);
    align-items: start;
  }

  .page-contact .checklist-figure {
    position: sticky;
    top: calc(var(--rail-pad-x) + 16px);
  }

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

  .page-contact .rhythm-step:last-child:nth-child(odd) {
    grid-column: auto;
  }
}

@media (max-width: 419px) {
  .page-contact .checklist__label {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 10px;
  }

  .page-contact .checklist__no {
    display: none;
  }

  .page-contact .rhythm-bar__seg {
    font-size: 10px;
    padding: 11px 5px;
  }
}
<<<END>>>