.page-contact {
  --c-gap: clamp(14px, 1.8vw, 22px);
  --c-hair: rgba(18, 58, 46, .16);
  --c-hair-soft: rgba(18, 58, 46, .09);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 46px) 0 clamp(44px, 6vw, 80px);
  background: linear-gradient(180deg, var(--moss) 0%, var(--paper) 74%);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: -150px;
  right: -130px;
  width: 440px;
  height: 440px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(47, 122, 92, .20), transparent 72%);
  pointer-events: none;
}

.page-contact .hero-head {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin-top: clamp(18px, 3vw, 34px);
}

.page-contact .hero-head .eyebrow {
  margin: 0 0 12px;
  font-family: var(--sans);
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--gold-ink);
}

.page-contact h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(1.9rem, 5vw, 3.4rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .hero-head .lead {
  margin: clamp(14px, 2vw, 22px) 0 0;
  max-width: 700px;
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  line-height: 1.9;
  color: rgba(11, 31, 25, .80);
}

/* ---------- 三条渠道卡 ---------- */
.page-contact .channel-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
  margin-top: clamp(26px, 4.4vw, 48px);
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.4vw, 28px);
  background: var(--paper);
  border: 1px solid var(--c-hair-soft);
  border-radius: var(--radius-organic);
  box-shadow: var(--shadow-card);
  transition: box-shadow .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  box-shadow: var(--shadow-card-hi);
  border-color: rgba(196, 100, 60, .55);
}

.page-contact .channel--primary {
  border: 2px solid var(--clay);
  padding-top: clamp(24px, 3vw, 34px);
}

.page-contact .channel__tag {
  align-self: flex-start;
  margin: 0;
  padding: 4px 11px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .12em;
  background: rgba(18, 58, 46, .07);
  color: var(--green);
}

.page-contact .channel--primary .channel__tag {
  background: var(--clay);
  color: #FFFFFF;
}

.page-contact .channel__title {
  margin: 4px 0 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.24rem;
  color: var(--ink);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--mono);
  font-size: .9rem;
  line-height: 1.65;
  word-break: break-word;
  color: var(--clay-deep);
}

.page-contact .channel__value a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(196, 100, 60, .45);
  transition: border-color .18s var(--ease);
}

.page-contact .channel__value a:hover,
.page-contact .channel__value a:focus-visible {
  border-bottom-color: var(--clay-deep);
}

.page-contact .channel__use {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(11, 31, 25, .76);
}

.page-contact .channel__more {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed rgba(18, 58, 46, .18);
}

.page-contact .channel__more summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-size: .87rem;
  font-weight: 500;
  color: var(--green);
}

.page-contact .channel__more summary::-webkit-details-marker {
  display: none;
}

.page-contact .channel__more summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: .95rem;
  color: var(--gold-ink);
}

.page-contact .channel__more[open] summary::after {
  content: "−";
}

.page-contact .channel__list {
  margin: 10px 0 0;
  padding-left: 1.1em;
  font-size: .87rem;
  line-height: 1.8;
  color: rgba(11, 31, 25, .72);
}

.page-contact .channel__list li + li {
  margin-top: 5px;
}

/* ---------- 首屏横幅图 ---------- */
.page-contact .hero-banner {
  position: relative;
  z-index: 1;
  margin: clamp(30px, 5vw, 58px) 0 0;
  padding: 10px;
  background: var(--paper);
  border: 1px solid rgba(201, 169, 106, .55);
  border-radius: var(--radius-organic);
  box-shadow: var(--shadow-card);
}

.page-contact .hero-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 10px 34px 10px 34px;
}

/* ---------- 锚点标签条 ---------- */
.page-contact .ledger {
  padding-bottom: clamp(46px, 7vw, 96px);
}

.page-contact .anchor-bar {
  margin-bottom: clamp(8px, 1.4vw, 18px);
}

.page-contact .anchor-bar__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-contact .anchor-bar__list::-webkit-scrollbar {
  display: none;
}

.page-contact .anchor-bar__list a {
  display: inline-block;
  white-space: nowrap;
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--c-hair);
  background: var(--paper);
  color: var(--green);
  font-size: .86rem;
  text-decoration: none;
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .anchor-bar__list a:hover,
.page-contact .anchor-bar__list a:focus-visible {
  background: var(--green);
  border-color: var(--green);
  color: var(--paper);
}

/* ---------- 纵向刻度段落 ---------- */
.page-contact .ledger__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: clamp(30px, 4.6vw, 56px) 0;
  border-top: 1px solid var(--c-hair);
}

.page-contact .ledger__item::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 64px;
  height: 2px;
  background: var(--gold);
}

.page-contact .ledger__num {
  margin: 0;
  font-family: var(--mono);
  font-size: .8rem;
  letter-spacing: .16em;
  color: var(--gold-ink);
}

.page-contact .ledger__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(1.45rem, 2.6vw, 2.05rem);
  line-height: 1.3;
  color: var(--ink);
}

.page-contact .ledger__lead {
  margin: 12px 0 0;
  max-width: 740px;
  font-size: 1.01rem;
  line-height: 1.9;
  color: rgba(11, 31, 25, .78);
}

.page-contact .ledger__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 36px);
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-contact .ledger__prose h3 {
  margin: 22px 0 8px;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 500;
  color: var(--clay-deep);
}

.page-contact .ledger__prose h3:first-child {
  margin-top: 0;
}

.page-contact .ledger__prose p {
  margin: 0 0 14px;
  font-size: .97rem;
  line-height: 1.9;
  color: rgba(11, 31, 25, .82);
}

.page-contact .ledger__prose p:last-child {
  margin-bottom: 0;
}

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

.page-contact .ledger__list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: .97rem;
  line-height: 1.85;
  color: rgba(11, 31, 25, .82);
}

.page-contact .ledger__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 9px;
  height: 2px;
  background: var(--vein);
}

.page-contact .ledger__figure {
  margin: 0;
  padding: 8px;
  background: var(--moss);
  border-radius: 14px 40px 14px 40px;
}

.page-contact .ledger__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 10px 32px 10px 32px;
}

.page-contact .ledger__figure figcaption {
  margin-top: 10px;
  padding: 0 8px 6px;
  font-size: .84rem;
  line-height: 1.75;
  color: rgba(11, 31, 25, .62);
}

/* ---------- 响应刻度条 ---------- */
.page-contact .gauge {
  list-style: none;
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 0;
}

.page-contact .gauge__step {
  position: relative;
  padding: 0 0 24px 26px;
  border-left: 1px solid var(--c-hair);
}

.page-contact .gauge__step:last-child {
  padding-bottom: 0;
}

.page-contact .gauge__step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--vein);
  transition: background-color .2s var(--ease);
}

.page-contact .gauge__num {
  display: block;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--gold-ink);
}

.page-contact .gauge__title {
  margin: 6px 0 7px;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
  transition: color .2s var(--ease);
}

.page-contact .gauge__note {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(11, 31, 25, .72);
  opacity: .82;
  transition: opacity .2s var(--ease);
}

.page-contact .gauge__step:hover .gauge__note,
.page-contact .gauge__step:focus-within .gauge__note {
  opacity: 1;
}

/* ---------- 站点信息面板 ---------- */
.page-contact .sitecard {
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: clamp(22px, 3vw, 36px);
  background: var(--deep);
  border-radius: 14px 44px 14px 44px;
  box-shadow: var(--shadow-card);
}

.page-contact .sitecard__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 15px 0;
  border-top: 1px solid rgba(244, 241, 233, .16);
}

.page-contact .sitecard__row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .sitecard__row:last-child {
  padding-bottom: 0;
}

.page-contact .sitecard dt {
  font-family: var(--mono);
  font-size: .77rem;
  letter-spacing: .13em;
  color: var(--gold);
}

.page-contact .sitecard dd {
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  word-break: break-word;
  color: rgba(244, 241, 233, .92);
}

.page-contact .sitecard dd a {
  color: rgba(244, 241, 233, .95);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 169, 106, .6);
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-contact .sitecard dd a:hover,
.page-contact .sitecard dd a:focus-visible {
  color: #FFFFFF;
  border-bottom-color: var(--gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .sitecard__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 0 22px;
    align-items: baseline;
  }
}

@media (min-width: 820px) {
  .page-contact .gauge {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 22px;
  }

  .page-contact .gauge__step {
    padding: 22px 0 0;
    border-left: 0;
    border-top: 2px solid var(--c-hair);
    transition: border-color .2s var(--ease);
  }

  .page-contact .gauge__step::before {
    left: 0;
    top: -7px;
    width: 12px;
    height: 12px;
    box-shadow: 0 0 0 4px var(--paper);
  }

  .page-contact .gauge__step:first-child::before {
    background: var(--clay);
  }

  .page-contact .gauge__step:hover {
    border-top-color: var(--clay);
  }

  .page-contact .gauge__step:hover .gauge__title {
    color: var(--clay-deep);
  }
}

@media (min-width: 880px) {
  .page-contact .channel-grid {
    grid-template-columns: 1.1fr .9fr 1fr;
    align-items: start;
  }

  .page-contact .channel:nth-child(2) {
    transform: translateY(20px);
  }

  .page-contact .channel:nth-child(3) {
    transform: translateY(9px);
  }

  .page-contact .ledger__split {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .ledger__item {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 0 32px;
    align-items: start;
    padding: clamp(36px, 4.6vw, 62px) 0;
  }

  .page-contact .ledger__num {
    padding-top: .55em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel__value a,
  .page-contact .anchor-bar__list a,
  .page-contact .gauge__step,
  .page-contact .gauge__step::before,
  .page-contact .gauge__title,
  .page-contact .gauge__note,
  .page-contact .sitecard dd a {
    transition: none;
  }
}