/* ============================================================
   联系我们 · page-contact
   ============================================================ */

.page-contact {
  --contact-cut: 18px;
  --contact-ink-text: #23262B;
  background: var(--ink);
  color: var(--silver);
  overflow-x: clip;
}

.page-contact .band-ink {
  background: var(--ink);
  color: var(--silver);
}

.page-contact .band-sand {
  background: var(--sand);
  color: var(--contact-ink-text);
}

/* ---------- 面包屑 ---------- */

.page-contact .contact-crumb {
  background: var(--ink);
  padding: 26px 0 0;
}

.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}

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

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--gold-hi);
  border-bottom-color: var(--gold-hi);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-lede {
  padding: 48px 0 76px;
  position: relative;
}

.page-contact .contact-lede::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 42%;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), rgba(201, 162, 75, 0));
}

.page-contact .contact-lede__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.page-contact .contact-lede__text h1 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--sand);
  margin: 14px 0 20px;
}

.page-contact .contact-lede__lead {
  font-size: 17px;
  line-height: 1.9;
  color: rgba(185, 190, 198, .84);
  max-width: 56ch;
}

.page-contact .contact-lede__meta {
  list-style: none;
  margin: 30px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 22px 40px;
}

.page-contact .contact-lede__meta li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

.page-contact .contact-lede__num {
  font-size: 20px;
  color: var(--gold);
  letter-spacing: .02em;
}

.page-contact .contact-lede__media {
  aspect-ratio: 7 / 5;
  border: 1px solid var(--line-gold);
}

/* ---------- 通用区块标题 ---------- */

.page-contact .section-head {
  margin-bottom: 44px;
  max-width: 62ch;
}

.page-contact .section-head h2 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 38px);
  line-height: 1.3;
  letter-spacing: -.005em;
  margin: 12px 0 14px;
}

.page-contact .section-head__sub {
  font-size: 16px;
  line-height: 1.9;
}

.page-contact .band-ink .section-head h2 {
  color: var(--sand);
}

.page-contact .band-ink .section-head__sub {
  color: rgba(185, 190, 198, .8);
}

.page-contact .band-sand .section-head h2 {
  color: #14161A;
}

.page-contact .band-sand .section-head__sub {
  color: rgba(35, 38, 43, .76);
}

/* ---------- 三条渠道 ---------- */

.page-contact .contact-channels {
  padding: 72px 0 64px;
}

.page-contact .channel-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .channel {
  position: relative;
  background: #FBF8F2;
  border: 1px solid rgba(11, 12, 14, .08);
  border-top: 3px solid var(--crimson);
  padding: 30px 26px 32px;
  outline: none;
  transition: transform var(--dur) ease, box-shadow var(--dur) ease, border-top-color var(--dur) ease;
}

.page-contact .channel:focus-visible {
  box-shadow: 0 0 0 2px var(--gold-hi);
}

.page-contact .channel:hover {
  transform: translateY(-4px);
  border-top-color: var(--gold);
  box-shadow: 0 18px 34px -24px rgba(11, 12, 14, .5);
}

.page-contact .channel__kicker {
  font-size: 11px;
  letter-spacing: .22em;
  color: rgba(110, 31, 38, .78);
  margin-bottom: 14px;
}

.page-contact .channel__title {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 22px;
  color: #14161A;
  margin-bottom: 12px;
}

.page-contact .channel__value {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: #14161A;
  padding: 12px 0 14px;
  border-bottom: 1px solid rgba(11, 12, 14, .12);
  word-break: break-word;
}

.page-contact .channel__for {
  margin-top: 18px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--crimson);
}

.page-contact .channel__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-contact .channel__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(35, 38, 43, .8);
  margin-bottom: 8px;
}

.page-contact .channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 7px;
  background: var(--gold);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.page-contact .contact-note {
  margin-top: 34px;
  padding: 18px 22px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(35, 38, 43, .78);
  background: rgba(217, 212, 203, .55);
  border-left: 3px solid var(--slate);
}

.page-contact .contact-note a {
  color: var(--crimson);
  text-decoration: none;
  border-bottom: 1px solid rgba(110, 31, 38, .4);
  transition: color var(--dur) ease, border-color var(--dur) ease;
}

.page-contact .contact-note a:hover,
.page-contact .contact-note a:focus-visible {
  color: #14161A;
  border-bottom-color: var(--gold);
}

/* ---------- 服务时段与响应节奏 ---------- */

.page-contact .contact-rhythm {
  padding: 78px 0 82px;
}

.page-contact .contact-rhythm__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-contact .contact-rhythm__aside h2 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 36px);
  line-height: 1.3;
  color: var(--sand);
  margin-top: 12px;
  max-width: 16ch;
}

.page-contact .contact-rhythm__body {
  display: grid;
  gap: 30px;
}

.page-contact .rhythm-block {
  position: relative;
  padding-left: 22px;
}

.page-contact .rhythm-block__bar {
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: linear-gradient(180deg, var(--gold), rgba(201, 162, 75, .08));
}

.page-contact .rhythm-block__bar--crimson {
  background: linear-gradient(180deg, var(--crimson), rgba(110, 31, 38, .1));
}

.page-contact .rhythm-block h3 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 18px;
  color: var(--gold-hi);
  margin-bottom: 8px;
}

.page-contact .rhythm-block p {
  font-size: 15px;
  line-height: 1.95;
  color: rgba(185, 190, 198, .78);
  max-width: 60ch;
}

/* ---------- 来函信息 ---------- */

.page-contact .contact-brief {
  padding: 76px 0;
}

.page-contact .contact-brief__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}

.page-contact .contact-brief__sub {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(35, 38, 43, .78);
  margin-bottom: 32px;
  max-width: 52ch;
}

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

.page-contact .brief-list li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid rgba(11, 12, 14, .12);
}

.page-contact .brief-list li:last-child {
  border-bottom: 1px solid rgba(11, 12, 14, .12);
}

.page-contact .brief-list__no {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--crimson);
  padding-top: 3px;
}

.page-contact .brief-list h3 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 16px;
  color: #14161A;
  margin-bottom: 6px;
}

.page-contact .brief-list p {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(35, 38, 43, .76);
}

.page-contact .contact-brief__media {
  aspect-ratio: 3 / 2;
  border: 1px solid rgba(11, 12, 14, .14);
}

/* ---------- 四步流程 ---------- */

.page-contact .contact-flow {
  padding: 78px 0 70px;
}

.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-contact .flow-step {
  position: relative;
  padding: 30px 0 28px 0;
  border-bottom: 1px solid var(--line);
  transition: background var(--dur) ease;
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 0;
  height: 2px;
  background: var(--gold-hi);
  transition: width var(--dur) ease;
}

.page-contact .flow-step:hover::before {
  width: 56px;
}

.page-contact .flow-step__no {
  display: block;
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--gold);
  margin-bottom: 12px;
}

.page-contact .flow-step--key .flow-step__no {
  color: var(--gold-hi);
}

.page-contact .flow-step h3 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 21px;
  color: var(--sand);
  margin-bottom: 10px;
}

.page-contact .flow-step p {
  font-size: 15px;
  line-height: 1.9;
  color: rgba(185, 190, 198, .78);
  max-width: 46ch;
}

.page-contact .flow-step__eta {
  display: inline-block;
  margin-top: 14px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--silver);
  border: 1px solid var(--line-gold);
  transition: color var(--dur) ease, border-color var(--dur) ease, background var(--dur) ease;
}

.page-contact .flow-step:hover .flow-step__eta {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--gold);
}

.page-contact .flow-step--key {
  background: linear-gradient(180deg, rgba(110, 31, 38, .16), rgba(110, 31, 38, 0));
}

.page-contact .contact-flow__tail {
  margin-top: 38px;
  font-size: 15px;
  line-height: 1.95;
  color: rgba(185, 190, 198, .76);
  max-width: 72ch;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-flow__tail a {
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 200, 118, .38);
  transition: color var(--dur) ease, border-color var(--dur) ease;
}

.page-contact .contact-flow__tail a:hover,
.page-contact .contact-flow__tail a:focus-visible {
  color: var(--sand);
  border-bottom-color: var(--gold-hi);
}

/* ---------- 备案条 ---------- */

.page-contact .contact-legal {
  padding: 0 0 84px;
}

.page-contact .contact-legal__title {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--muted);
  margin-bottom: 16px;
}

.page-contact .contact-legal__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  padding: 20px 24px;
  border: 1px solid var(--line-gold);
  font-size: 13px;
  color: var(--silver);
  background: var(--ink-2);
}

.page-contact .contact-legal__bar .mono {
  color: var(--gold);
  letter-spacing: .06em;
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-contact .contact-channels {
    padding: 88px 0 76px;
  }

  .page-contact .channel-row {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .page-contact .contact-rhythm__body {
    grid-template-columns: repeat(2, 1fr);
    gap: 34px 40px;
  }

  .page-contact .flow {
    grid-template-columns: repeat(2, 1fr);
    gap: 0 40px;
  }

  .page-contact .flow-step {
    padding: 30px 0;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-lede {
    padding: 60px 0 96px;
  }

  .page-contact .contact-lede__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 64px;
  }

  .page-contact .contact-lede__media {
    margin-top: 24px;
  }

  .page-contact .contact-brief__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 60px;
    align-items: center;
  }

  .page-contact .contact-rhythm__grid {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .flow {
    grid-template-columns: repeat(4, 1fr);
    gap: 0 28px;
  }

  .page-contact .flow-step {
    padding: 34px 0 34px;
    border-bottom: none;
    border-top: 1px solid transparent;
  }

  .page-contact .flow-step::before {
    top: 0;
  }

  .page-contact .flow-step h3 {
    font-size: 19px;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-lede__grid {
    gap: 84px;
  }

  .page-contact .footer-legal-line {
    word-break: break-word;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .flow-step,
  .page-contact .flow-step::before,
  .page-contact .flow-step__eta {
    transition: none;
  }

  .page-contact .channel:hover {
    transform: none;
  }
}