.page-contact {
  --pc-accent: var(--lime);
  --pc-rail: 200px;
  background: var(--night);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: clamp(24px, 4vw, 48px) 0 clamp(38px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--night) 0%, var(--night) 78%, var(--pitch) 100%);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--lime) 0%,
    var(--lime) 34%,
    var(--cyan) 34%,
    var(--cyan) 52%,
    var(--line) 52%,
    var(--line) 100%
  );
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

@media (min-width: 920px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: stretch;
  }
}

.page-contact .contact-hero__intro {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.page-contact .contact-hero .crumbs {
  margin-bottom: 2px;
}

.page-contact h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 5.4vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0;
}

.page-contact .contact-hero__eyebrow {
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0;
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.page-contact .contact-hero__media {
  margin: 0;
  min-width: 0;
  border: 1px solid var(--line);
  background: var(--carbon);
  position: relative;
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 44px;
  height: 100%;
  background: var(--lime);
  opacity: 0.1;
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

/* ---------- 主体骨架 ---------- */

.page-contact .contact-body {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  padding-top: clamp(28px, 4vw, 52px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

@media (min-width: 1000px) {
  .page-contact .contact-body {
    grid-template-columns: var(--pc-rail) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }
}

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

@media (min-width: 1000px) {
  .page-contact .contact-rail {
    display: block;
    position: sticky;
    top: clamp(84px, 12vh, 118px);
    align-self: start;
  }
}

.page-contact .contact-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .contact-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-contact .contact-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0 8px 14px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  color: var(--steel);
  font-size: 14px;
  line-height: 1.45;
  text-decoration: none;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.page-contact .contact-rail__link:hover {
  color: var(--ink);
}

.page-contact .contact-rail__link.is-current {
  color: var(--lime);
  border-left-color: var(--lime);
  background: var(--lime-soft);
}

.page-contact .contact-rail__link .mono {
  font-size: 11px;
  color: var(--steel);
}

.page-contact .contact-rail__link.is-current .mono {
  color: var(--lime);
}

.page-contact .contact-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

/* ---------- 章节通用 ---------- */

.page-contact .contact-section {
  position: relative;
  padding: clamp(26px, 4.2vw, 50px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-main > .contact-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .contact-section::after {
  content: "";
  position: absolute;
  top: -1px;
  right: 0;
  width: clamp(52px, 15vw, 168px);
  height: 3px;
  background: var(--pc-accent);
  transform: skewX(-24deg);
  transform-origin: right top;
  opacity: 0.9;
  pointer-events: none;
}

.page-contact .contact-section--lime { --pc-accent: var(--lime); }
.page-contact .contact-section--cyan { --pc-accent: var(--cyan); }
.page-contact .contact-section--steel { --pc-accent: var(--steel); }

.page-contact .section-head {
  display: flex;
  gap: clamp(14px, 2.5vw, 28px);
  align-items: flex-start;
  margin-bottom: clamp(16px, 2.4vw, 28px);
}

.page-contact .section-index {
  margin: 0;
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 5.6vw, 62px);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--line);
  font-variant-numeric: tabular-nums;
  transition: color var(--t-mid);
}

.page-contact .contact-section.is-current .section-index {
  color: var(--pc-accent);
}

.page-contact .section-head__body {
  min-width: 0;
  padding-top: 4px;
}

.page-contact .section-head__body h2 {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.1vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.02em;
}

.page-contact .contact-lede {
  margin: 0 0 clamp(18px, 2.6vw, 30px);
  max-width: 66ch;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .contact-footnote {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 70ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--steel);
  padding-left: 14px;
  border-left: 2px solid var(--line);
}

.page-contact .contact-footnote .link-arrow {
  color: var(--cyan);
}

/* ---------- 三条通道 ---------- */

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 760px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: clamp(20px, 3vw, 30px);
  background: var(--pitch);
  transition: background var(--t-fast);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--pc-ch, var(--lime));
}

.page-contact .channel:hover {
  background: #102F27;
}

.page-contact .channel--mail { --pc-ch: var(--lime); }
.page-contact .channel--phone { --pc-ch: var(--cyan); }
.page-contact .channel--post { --pc-ch: var(--steel); }

.page-contact .channel__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pc-ch, var(--lime));
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.5vw, 18px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.page-contact .channel__value--addr {
  font-size: 14px;
  font-weight: 400;
  color: var(--steel);
  letter-spacing: 0.02em;
}

.page-contact .channel__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel);
}

.page-contact .channel__list {
  list-style: none;
  margin: auto 0 0;
  padding: 12px 0 0;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.page-contact .channel__item {
  display: flex;
  gap: 8px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
}

.page-contact .channel__item::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: 7px;
  background: var(--pc-ch, var(--lime));
}

/* ---------- 材料清单 ---------- */

.page-contact .materials-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

@media (min-width: 820px) {
  .page-contact .materials-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .checklist__item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  background: var(--night);
}

.page-contact .checklist__mark {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  color: var(--lime);
}

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

.page-contact .checklist__title {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .checklist__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--steel);
}

.page-contact .materials-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--carbon);
}

.page-contact .materials-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

/* ---------- 写法参考 ---------- */

.page-contact .tpl-block {
  margin-top: clamp(24px, 3.5vw, 42px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--line);
}

.page-contact .tpl-block__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 24px);
  letter-spacing: -0.01em;
}

.page-contact .tpl-block__hint {
  margin: 0 0 16px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel);
}

.page-contact .tpl-block .chip-row {
  margin-bottom: 16px;
}

.page-contact .tpl-panels {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 760px) {
  .page-contact .tpl-panels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .tpl {
  background: var(--carbon);
  padding: 18px 20px;
  min-width: 0;
}

.page-contact .tpl__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .tpl__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink);
  overflow-wrap: anywhere;
}

/* ---------- 处理流程 ---------- */

.page-contact .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 860px) {
  .page-contact .timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-contact .timeline__step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  background: var(--pitch);
  min-width: 0;
}

.page-contact .timeline__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--lime);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--t-mid);
}

.page-contact .timeline__step:hover::before,
.page-contact .timeline__step:focus-within::before {
  transform: scaleY(1);
}

.page-contact .timeline__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.page-contact .timeline__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  font-family: var(--font-sans);
}

.page-contact .timeline__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--steel);
}

/* ---------- 内容协作 ---------- */

.page-contact .collab-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

@media (min-width: 880px) {
  .page-contact .collab-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }
}

.page-contact .collab-copy p {
  margin: 0 0 14px;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink);
}

.page-contact .collab-copy p:last-child {
  margin-bottom: 0;
  color: var(--steel);
}

.page-contact .collab-cite {
  position: relative;
  padding: 22px 20px 20px;
  background: var(--ivory);
  color: var(--night);
  border-left: 3px solid var(--lime);
  min-width: 0;
}

.page-contact .collab-cite__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #4A5A3A;
}

.page-contact .collab-cite__text {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.7;
  font-weight: 600;
  color: var(--night);
}

.page-contact .collab-cite__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: #48505A;
}

/* ---------- 球队负责人 ---------- */

.page-contact .team-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

@media (min-width: 820px) {
  .page-contact .team-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 32px;
  }
}

.page-contact .team-step {
  position: relative;
  padding-left: 28px;
  min-width: 0;
}

.page-contact .team-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 9px;
  height: 9px;
  background: var(--lime);
  transform: rotate(45deg);
}

.page-contact .team-step::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 22px;
  bottom: -18px;
  width: 1px;
  background: var(--line);
}

@media (min-width: 820px) {
  .page-contact .team-step::after {
    display: none;
  }
}

.page-contact .team-step:last-child::after {
  display: none;
}

.page-contact .team-step__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  font-family: var(--font-sans);
  line-height: 1.4;
}

.page-contact .team-step__text {
  margin: 0;
  max-width: 54ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 服务地区 ---------- */

.page-contact .coverage-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(146px, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: clamp(4px, 1vw, 10px);
}

.page-contact .coverage-strip__cell {
  background: var(--carbon);
  padding: 18px 18px 16px;
  min-width: 146px;
}

.page-contact .coverage-strip__value {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.page-contact .coverage-strip__label {
  display: block;
  margin-top: 9px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--steel);
}

/* ---------- 窄屏收尾 ---------- */

@media (max-width: 640px) {
  .page-contact .section-head {
    flex-direction: column;
    gap: 6px;
  }

  .page-contact .section-index {
    font-size: 34px;
  }

  .page-contact .contact-hero__media::after {
    display: none;
  }

  .page-contact .contact-hero__actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .timeline__step::before,
  .page-contact .contact-rail__link,
  .page-contact .section-index,
  .page-contact .channel {
    transition: none;
  }
}