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

.page-contact {
  --cc-panel: rgba(6, 18, 15, .40);
  --cc-line: rgba(201, 162, 39, .26);
  --cc-line-soft: rgba(143, 163, 176, .20);
  display: block;
  background: var(--green-900);
  color: var(--text);
}

/* ---------- 首屏分屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: clamp(104px, 13vh, 152px) 0 clamp(46px, 6vw, 86px);
  background:
    radial-gradient(1100px 620px at 92% -12%, rgba(201, 162, 39, .12), transparent 68%),
    radial-gradient(760px 480px at -6% 108%, rgba(47, 211, 176, .07), transparent 70%),
    linear-gradient(180deg, var(--green-900) 0%, var(--green-800) 62%, var(--green-900) 100%);
  overflow: hidden;
}

.page-contact .contact-hero__shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(34px, 6vw, 60px);
  align-items: start;
}

@media (min-width: 960px) {
  .page-contact .contact-hero__shell {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6.4fr);
    gap: clamp(40px, 5vw, 78px);
  }
}

.page-contact .contact-hero__lead > .breadcrumb {
  margin-bottom: 24px;
}

.page-contact .contact-hero__lead .eyebrow {
  margin: 0;
}

.page-contact .contact-hero__lead h1 {
  margin: 14px 0 0;
  font-family: var(--serif);
  font-size: clamp(30px, 4.6vw, 48px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .contact-hero__lead .lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.82;
  color: var(--text-dim);
}

/* ---------- 三条渠道卡 ---------- */

.page-contact .channel-stack {
  display: grid;
  gap: 14px;
  margin-top: 32px;
}

.page-contact .channel-card {
  position: relative;
  padding: 20px 22px 22px 26px;
  border: 1px solid var(--cc-line-soft);
  border-left: 3px solid var(--gold);
  border-radius: 4px var(--r-md) var(--r-md) 4px;
  background: var(--cc-panel);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 28px;
  height: 28px;
  background: linear-gradient(225deg, rgba(201, 162, 39, .20) 0 50%, transparent 50%);
  pointer-events: none;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  background: rgba(6, 18, 15, .66);
  transform: translateY(-2px);
}

.page-contact .channel-card--phone {
  border-left-color: var(--mint);
}

.page-contact .channel-card--addr {
  border-left-color: var(--blue);
}

.page-contact .channel-card__label {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--gold-soft);
}

.page-contact .channel-card__name {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .channel-card__value {
  margin: 12px 0 0;
  font-family: var(--mono);
  font-size: clamp(15px, 1.55vw, 18px);
  line-height: 1.5;
  letter-spacing: .005em;
  color: var(--gold);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__fit {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .channel-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

/* ---------- 右栏：时段与处理顺序 ---------- */

.page-contact .contact-route {
  display: grid;
  gap: clamp(18px, 2.4vw, 24px);
  align-content: start;
}

.page-contact .route-block {
  position: relative;
  padding: clamp(20px, 2.4vw, 28px);
  border: 1px solid var(--cc-line-soft);
  border-radius: var(--r-md);
  background: rgba(6, 18, 15, .34);
  box-shadow: 0 22px 48px -34px rgba(0, 0, 0, .9);
}

.page-contact .route-block::before {
  content: "";
  position: absolute;
  top: -1px;
  left: clamp(20px, 2.4vw, 28px);
  width: 54px;
  height: 2px;
  background: var(--gold);
}

.page-contact .route-block__eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--gold-soft);
}

.page-contact .route-block__title {
  margin: 10px 0 0;
  font-family: var(--serif);
  font-size: clamp(19px, 2vw, 23px);
  font-weight: 600;
  line-height: 1.42;
  color: var(--paper);
}

.page-contact .route-block__note,
.page-contact .route-block__hint {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-contact .route-block__hint {
  padding-left: 14px;
  border-left: 2px solid var(--red);
  color: rgba(222, 229, 221, .78);
}

/* 时间刻度条 */

.page-contact .clock-bar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  margin-top: 20px;
  height: 54px;
  padding: 0 12px;
  border: 1px solid var(--cc-line);
  border-radius: var(--r-sm);
  background: linear-gradient(90deg,
    rgba(47, 211, 176, .08) 0%,
    rgba(201, 162, 39, .14) 55%,
    rgba(122, 31, 43, .18) 100%);
  overflow: hidden;
}

.page-contact .clock-bar__peak {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 22.2%;
  width: 22.2%;
  background: repeating-linear-gradient(45deg,
    rgba(122, 31, 43, .32) 0 5px,
    transparent 5px 11px);
  border-left: 1px dashed rgba(122, 31, 43, .55);
  border-right: 1px dashed rgba(122, 31, 43, .55);
  pointer-events: none;
}

.page-contact .clock-bar__mark {
  position: relative;
  z-index: 1;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .02em;
  color: var(--gold-soft);
  white-space: nowrap;
}

.page-contact .route-block__media {
  margin: 20px 0 0;
  border: 1px solid var(--cc-line-soft);
  border-radius: var(--r-sm);
  overflow: hidden;
  background: var(--green-800);
}

.page-contact .route-block__media img {
  display: block;
  width: 100%;
  height: clamp(134px, 16vw, 180px);
  object-fit: cover;
  filter: saturate(.7) brightness(.82) contrast(1.06);
}

/* 编号步骤 */

.page-contact .route-steps {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .route-step {
  position: relative;
  padding-left: 48px;
}

.page-contact .route-step::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 42px;
  bottom: 0;
  width: 1px;
  background: repeating-linear-gradient(180deg,
    rgba(143, 163, 176, .45) 0 4px,
    transparent 4px 9px);
}

.page-contact .route-step:last-child::before {
  display: none;
}

.page-contact .route-step__no {
  position: absolute;
  left: 0;
  top: 8px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid var(--cc-line);
  border-radius: var(--r-pill);
  background: var(--green-900);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--gold);
}

.page-contact .route-step__panel {
  border-bottom: 1px solid rgba(143, 163, 176, .14);
}

.page-contact .route-step__panel summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 0 15px;
  cursor: pointer;
  list-style: none;
  font-family: var(--sans);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
  transition: color var(--dur) var(--ease);
}

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

.page-contact .route-step__panel summary::after {
  content: "+";
  flex: none;
  font-family: var(--mono);
  font-size: 17px;
  line-height: 1;
  color: var(--gold-soft);
}

.page-contact .route-step__panel[open] summary::after {
  content: "–";
}

.page-contact .route-step__panel summary:hover,
.page-contact .route-step__panel[open] summary {
  color: var(--gold-soft);
}

.page-contact .route-step__body {
  padding: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .route-step__body p {
  margin: 0;
}

.page-contact .route-step__body a {
  color: var(--gold-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 咨询前请准备 ---------- */

.page-contact .contact-prep {
  padding: clamp(48px, 7vw, 96px) 0;
  background: linear-gradient(180deg, var(--green-900) 0%, var(--green-800) 130%);
}

.page-contact .prep-head {
  max-width: 62ch;
}

.page-contact .prep-head .eyebrow {
  margin: 0;
}

.page-contact .prep-head h2 {
  margin: 12px 0 0;
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .prep-head p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .prep-list {
  display: grid;
  gap: 18px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 780px) {
  .page-contact .prep-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

.page-contact .prep-item {
  padding: 26px 24px 28px;
  border-radius: var(--r-md);
  background: var(--paper);
  box-shadow: 6px 6px 0 0 rgba(201, 162, 39, .16), var(--shadow-paper);
}

.page-contact .prep-item__no {
  display: block;
  font-family: var(--mono);
  font-size: 32px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -.03em;
  color: rgba(122, 31, 43, .55);
}

.page-contact .prep-item__name {
  margin: 16px 0 0;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .prep-item__desc {
  margin: 11px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(6, 18, 15, .74);
}

/* ---------- 覆盖区域 ---------- */

.page-contact .contact-coverage {
  padding: clamp(44px, 6vw, 84px) 0;
  background: var(--green-900);
}

.page-contact .coverage-shell {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: center;
}

@media (min-width: 900px) {
  .page-contact .coverage-shell {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

.page-contact .coverage-copy .eyebrow {
  margin: 0;
}

.page-contact .coverage-copy h2 {
  margin: 12px 0 0;
  font-family: var(--serif);
  font-size: clamp(22px, 2.7vw, 32px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--paper);
}

.page-contact .coverage-copy p {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--text-dim);
}

.page-contact .coverage-board {
  padding: 24px 22px 20px;
  border: 1px solid var(--cc-line-soft);
  border-radius: var(--r-md);
  background: rgba(6, 18, 15, .38);
}

.page-contact .coverage-dots {
  display: grid;
  grid-template-columns: repeat(13, minmax(0, 1fr));
  gap: 12px 10px;
}

@media (max-width: 520px) {
  .page-contact .coverage-dots {
    grid-template-columns: repeat(9, minmax(0, 1fr));
    gap: 10px 8px;
  }
}

.page-contact .coverage-dot {
  justify-self: start;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: rgba(143, 163, 176, .42);
}

.page-contact .coverage-dot.is-local {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, .18);
}

.page-contact .coverage-board__foot {
  margin: 22px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(143, 163, 176, .18);
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--gold-soft);
}

/* ---------- 信函与资料往来 ---------- */

.page-contact .contact-letter {
  padding: clamp(46px, 6vw, 88px) 0 clamp(40px, 5vw, 72px);
  background: linear-gradient(180deg, var(--green-900) 0%, var(--green-800) 130%);
}

.page-contact .letter-shell {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-contact .letter-shell {
    grid-template-columns: minmax(0, 5.6fr) minmax(0, 5.4fr);
    gap: clamp(36px, 4.4vw, 72px);
  }
}

.page-contact .letter-media {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--cc-line);
  border-radius: var(--r-md);
  background: var(--green-800);
  overflow: hidden;
}

.page-contact .letter-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
  object-fit: cover;
  filter: saturate(.72) brightness(.84) contrast(1.05);
}

.page-contact .letter-body .eyebrow {
  margin: 0;
}

.page-contact .letter-body h2 {
  margin: 12px 0 0;
  font-family: var(--serif);
  font-size: clamp(23px, 2.9vw, 33px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--paper);
}

.page-contact .letter-body > p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--text-dim);
}

.page-contact .letter-req {
  margin: 28px 0 0;
  border-top: 1px solid var(--cc-line-soft);
}

.page-contact .letter-req__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(143, 163, 176, .14);
}

@media (min-width: 520px) {
  .page-contact .letter-req__row {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

.page-contact .letter-req dt {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold-soft);
}

.page-contact .letter-req dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text);
  overflow-wrap: anywhere;
}

/* ---------- 返回顶部 ---------- */

.page-contact .contact-back {
  padding: 0 0 clamp(64px, 8vw, 104px);
  text-align: center;
  background: var(--green-800);
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .route-step__panel summary,
  .page-contact .route-step__panel summary::after {
    transition-duration: .01ms;
  }

  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within {
    transform: none;
  }
}