.page-contact {
  --ct-gap: clamp(14px, 2vw, 20px);
  --ct-section: clamp(44px, 7vw, 88px);
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-contact .mono {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.08em;
}

/* ---------- 首屏 ---------- */

.page-contact .hero-c {
  position: relative;
  padding-top: clamp(20px, 3.4vw, 40px);
  padding-bottom: clamp(30px, 5vw, 62px);
}

.page-contact .hero-c::after {
  content: "";
  display: block;
  margin-top: clamp(28px, 4vw, 46px);
  height: 1px;
  background: linear-gradient(90deg, var(--moss) 0%, rgba(46, 125, 107, 0) 72%);
}

.page-contact .hero-c__title {
  margin: 14px 0 0;
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 72px);
  line-height: 1.08;
  max-width: 22ch;
}

.page-contact .hero-c__title span {
  display: block;
  color: var(--moss-lit);
}

.page-contact .hero-c__foot {
  margin-top: clamp(22px, 3.4vw, 38px);
  display: grid;
  gap: clamp(18px, 2.6vw, 32px);
}

.page-contact .hero-c__lede {
  margin: 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
}

.page-contact .hero-c__meta {
  list-style: none;
  margin: 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.page-contact .hero-c__meta li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.page-contact .hero-c__meta b {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(14px, 1.6vw, 18px);
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-contact .hero-c__meta span {
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.03em;
  color: var(--stone);
}

.page-contact .hero-c__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

/* ---------- 章节基座 ---------- */

.page-contact .sec {
  padding-top: var(--ct-section);
  padding-bottom: var(--ct-section);
}

.page-contact .sec--end {
  padding-bottom: clamp(54px, 8vw, 96px);
}

.page-contact .sec__head {
  max-width: 64ch;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-contact .sec__head h2 {
  margin: 10px 0 0;
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.2;
}

.page-contact .sec__note {
  margin: 12px 0 0;
  color: var(--stone);
  font-size: 15px;
  line-height: 1.8;
}

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

/* ---------- 三条渠道 ---------- */

.page-contact .chan-figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
  border: 1px solid var(--line-soft);
}

.page-contact .chans {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .chan {
  position: relative;
  margin: 0;
  padding: clamp(20px, 2.6vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
  transition: transform var(--speed) ease, background-color var(--speed) ease;
}

.page-contact .chan::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  transform: scaleX(0.18);
  transform-origin: left center;
  background: var(--stone);
  transition: transform var(--speed) ease;
}

.page-contact .chan:hover {
  transform: translateY(-2px);
  background: var(--lift);
}

.page-contact .chan:hover::after {
  transform: scaleX(1);
}

.page-contact .chan--mail::after { background: var(--moss-lit); }
.page-contact .chan--phone::after { background: var(--signal); }
.page-contact .chan--addr::after { background: var(--clay); }

.page-contact .chan__val {
  margin: 0;
  font-size: clamp(16px, 1.9vw, 21px);
  color: var(--bone);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .chan__val--addr {
  font-family: var(--font-body);
  font-weight: 400;
  letter-spacing: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
}

.page-contact .chan__desc {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .chan__when {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--moss-lit);
}

/* ---------- 联系前准备 ---------- */

.page-contact .prep {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
}

.page-contact .prep__lede {
  margin: 14px 0 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
  max-width: 48ch;
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: ck;
  border-top: 1px solid var(--line);
}

.page-contact .checklist li {
  counter-increment: ck;
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 6px 8px;
  padding: clamp(16px, 2vw, 22px) 0 clamp(16px, 2vw, 22px) 14px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .checklist li::after {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(16px, 2vw, 22px);
  bottom: clamp(16px, 2vw, 22px);
  width: 2px;
  background: var(--clay);
  opacity: 0.55;
}

.page-contact .checklist li::before {
  content: "0" counter(ck);
  grid-column: 1;
  grid-row: 1 / span 2;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--moss-lit);
}

.page-contact .checklist h3 {
  grid-column: 2;
  margin: 0;
  font-weight: 700;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.4;
}

.page-contact .checklist p {
  grid-column: 2;
  margin: 6px 0 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 按地区与设备转接 ---------- */

.page-contact .route-c {
  display: grid;
  gap: clamp(22px, 3.6vw, 46px);
  align-items: center;
}

.page-contact .route-c__fig {
  margin: 0;
  border: 1px solid var(--line-soft);
}

.page-contact .route-c__body h2 {
  margin: 10px 0 0;
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.2;
}

.page-contact .route-c__body > p {
  margin: 14px 0 0;
  max-width: 56ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

.page-contact .route-list {
  list-style: none;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 0;
}

.page-contact .route-list li {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--line-soft);
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
}

.page-contact .route-list .mono {
  color: var(--amber);
  font-size: 13px;
  padding-top: 3px;
}

/* ---------- 常见咨询 ---------- */

.page-contact .qa-list {
  display: grid;
  gap: clamp(12px, 1.6vw, 16px);
}

.page-contact .qa {
  overflow: hidden;
}

.page-contact .qa summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
  padding: clamp(18px, 2.4vw, 24px);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 24px);
  letter-spacing: -0.01em;
  color: var(--bone);
  transition: color var(--speed) ease;
}

.page-contact .qa summary::-webkit-details-marker { display: none; }
.page-contact .qa summary::marker { content: ""; }
.page-contact .qa summary:hover { color: var(--moss-lit); }

.page-contact .qa__time {
  font-size: 12px;
  color: var(--amber);
}

.page-contact .qa__body {
  padding: 16px clamp(18px, 2.4vw, 24px) clamp(20px, 2.4vw, 26px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .qa__body p {
  margin: 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

.page-contact .qa__metric {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-contact .bar {
  flex: 0 0 96px;
  height: 3px;
  position: relative;
  overflow: hidden;
  background: var(--line-soft);
}

.page-contact .bar::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  background: linear-gradient(90deg, var(--moss), var(--moss-lit));
}

.page-contact .bar--3m::after { width: 24%; }
.page-contact .bar--10m::after { width: 52%; }
.page-contact .bar--2r::after { width: 72%; }

/* ---------- 来信说明 ---------- */

.page-contact .letter {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-contact .letter__intro h2 {
  margin: 10px 0 0;
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.2;
}

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

.page-contact .letter__list li {
  position: relative;
  padding: 15px 0 15px 26px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .letter__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  top: 15px;
  font-family: var(--font-mono);
  color: var(--moss-lit);
}

.page-contact .letter__body > p {
  margin: 20px 0 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

.page-contact .letter__body a {
  color: var(--moss-lit);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(79, 179, 155, 0.4);
  transition: color var(--speed) ease;
}

.page-contact .letter__body a:hover { color: var(--signal); }

/* ---------- 底部状态条 ---------- */

.page-contact .statusbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-contact .statusbar p { margin: 0; }

.page-contact .statusbar__now {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--moss-lit);
}

.page-contact .lamp {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--moss-lit);
  box-shadow: 0 0 0 4px rgba(79, 179, 155, 0.16);
}

.page-contact .end-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 响应式 ---------- */

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

@media (min-width: 900px) {
  .page-contact .hero-c__foot {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-contact .prep {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-contact .route-c {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }

  .page-contact .letter {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: start;
  }
}

@media (max-width: 560px) {
  .page-contact .hero-c__meta {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .page-contact .checklist li {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 4px 8px;
  }

  .page-contact .route-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-contact .route-list .mono {
    padding-top: 0;
  }
}