.page-contact {
  --pc-rail: 320px;
  --pc-gap: 64px;
  position: relative;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
}

.page-contact a:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 2px;
}

/* ---------- 面包屑 ---------- */
.page-contact .kit-breadcrumb {
  padding-top: 22px;
  font-size: 14px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: 26px 0 6px;
}

.page-contact .contact-hero__inner {
  max-width: 780px;
}

.page-contact .contact-hero__kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--brass);
}

.page-contact .contact-hero__title {
  margin: 0 0 22px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(34px, 8.4vw, 64px);
  line-height: 1.16;
  letter-spacing: .04em;
  color: var(--teal-900);
}

.page-contact .contact-hero__lede {
  margin: 0 0 14px;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-contact .contact-hero__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--teal-700);
}

/* ---------- 首屏横幅 ---------- */
.page-contact .contact-banner {
  margin: 34px 0 0;
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

.page-contact .contact-banner img {
  object-fit: cover;
}

/* ---------- 双栏主体 ---------- */
.page-contact .contact-body {
  padding: 58px 0 0;
}

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

.page-contact .contact-body__grid::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg,
    var(--flag-yellow) 0%,
    var(--flag-green) 32%,
    var(--flag-red) 64%,
    var(--brass) 100%);
  opacity: .34;
}

/* ---------- 左侧联系方式卡 ---------- */
.page-contact .contact-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: .06em;
  color: var(--teal-900);
}

.page-contact .contact-rail__lead {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .contact-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-contact .contact-card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 18px 18px 20px;
  box-shadow: 4px 4px 0 -1px var(--parchment), 4px 4px 0 0 var(--line);
  transition: transform .22s ease-out, box-shadow .22s ease-out;
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  transform: translate(-2px, -3px);
  box-shadow: 7px 8px 0 -1px var(--parchment), 7px 8px 0 0 var(--brass);
}

.page-contact .contact-card__label {
  display: inline-block;
  margin: 0 0 12px;
  padding: 3px 13px 3px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--paper);
  background: var(--teal-700);
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-contact .contact-card__value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.55;
  letter-spacing: .01em;
  color: var(--teal-900);
  overflow-wrap: anywhere;
}

.page-contact .contact-card__value--addr {
  font-family: var(--font-sans);
  font-size: 16px;
  letter-spacing: .02em;
  line-height: 1.7;
  overflow-wrap: break-word;
}

.page-contact .contact-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .contact-rail__tip {
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .contact-rail__tip a {
  color: var(--teal-700);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-rail__tip a:hover {
  color: var(--brass);
}

/* ---------- 右侧叙述栏 ---------- */
.page-contact .contact-main {
  display: grid;
  gap: 50px;
  margin-top: 46px;
}

.page-contact .contact-block__title {
  margin: 0 0 18px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 23px;
  line-height: 1.45;
  letter-spacing: .05em;
  color: var(--teal-900);
}

.page-contact .contact-block > p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.88;
  color: var(--ink);
}

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

.page-contact .contact-block a {
  color: var(--teal-700);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-block a:hover {
  color: var(--brass);
}

/* 标题样例 */
.page-contact .title-samples {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .title-samples li {
  padding: 9px 14px;
  background: var(--parchment);
  border-left: 3px solid var(--brass);
  font-size: 14px;
  line-height: 1.6;
  color: var(--teal-900);
}

/* ---------- 三步流程 ---------- */
.page-contact .flow-chart {
  display: block;
  width: 100%;
  height: auto;
  max-width: 620px;
  margin: 6px 0 26px;
}

.page-contact .flow-chart text {
  font-family: var(--font-mono);
  font-weight: 600;
}

.page-contact .center-steps {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}

.page-contact .center-step {
  position: relative;
  padding: 0 0 20px 24px;
  border-left: 2px solid var(--line);
}

.page-contact .center-step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .center-step::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--teal-700);
}

.page-contact .center-step--focus::before {
  background: var(--brass);
  border-color: var(--brass);
  box-shadow: 0 0 0 5px rgba(192, 138, 46, .18);
}

.page-contact .center-step__title {
  margin: 0 0 5px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: .04em;
  color: var(--teal-900);
}

.page-contact .center-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink-soft);
}

/* ---------- 时效 ---------- */
.page-contact .timing-grid {
  display: grid;
  gap: 14px;
  margin: 0 0 20px;
}

.page-contact .timing-item {
  padding: 15px 16px 17px;
  background: var(--parchment);
  border-top: 3px solid var(--brass);
}

.page-contact .timing-item:nth-child(2) {
  border-top-color: var(--flag-green);
}

.page-contact .timing-item:nth-child(3) {
  border-top-color: var(--flag-red);
}

.page-contact .timing-item__num {
  margin: 0 0 7px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--teal-900);
}

.page-contact .timing-item__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink-soft);
}

/* ---------- 来信类型 ---------- */
.page-contact .letter-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 3px;
}

.page-contact .letter-type {
  padding: 14px 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--teal-300);
  transition: border-left-color .22s ease-out, background-color .22s ease-out;
}

.page-contact .letter-type:hover,
.page-contact .letter-type:focus-within {
  border-left-color: var(--brass);
  background: var(--parchment);
}

.page-contact .letter-type__name {
  display: block;
  font-size: 15.5px;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--teal-900);
}

.page-contact .letter-type__hint {
  display: block;
  margin-top: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--teal-700);
  transition: max-height .24s ease-out, opacity .2s ease-out, margin-top .24s ease-out;
}

.page-contact .letter-type:hover .letter-type__hint,
.page-contact .letter-type:focus-within .letter-type__hint {
  max-height: 5em;
  opacity: 1;
  margin-top: 8px;
}

@media (hover: none) {
  .page-contact .letter-type__hint {
    max-height: 5em;
    opacity: 1;
    margin-top: 8px;
  }
}

/* ---------- 延伸阅读条 ---------- */
.page-contact .contact-next {
  margin-top: 62px;
  padding: 42px 0 46px;
  background: var(--parchment);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-next__title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: .05em;
  color: var(--teal-900);
}

.page-contact .contact-next p {
  margin: 0 0 20px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .next-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .next-links a {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--teal-700);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease-out, border-color .2s ease-out;
}

.page-contact .next-links a::before {
  content: "→";
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--brass);
}

.page-contact .next-links a:hover,
.page-contact .next-links a:focus-visible {
  color: var(--teal-900);
  border-bottom-color: var(--brass);
}

/* ---------- 底部深色区 ---------- */
.page-contact .contact-seal {
  position: relative;
  overflow: hidden;
  padding: 54px 0 62px;
  background: linear-gradient(155deg, var(--teal-900) 0%, var(--teal-700) 58%, #0b2c3d 100%);
  color: var(--paper);
}

.page-contact .contact-seal::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg,
    var(--flag-yellow) 0%,
    var(--flag-green) 25%,
    var(--flag-red) 50%,
    var(--paper) 75%,
    var(--teal-300) 100%);
  opacity: .9;
}

.page-contact .contact-seal::after {
  content: "";
  position: absolute;
  right: -90px;
  top: -90px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(192, 138, 46, .24), transparent 68%);
  pointer-events: none;
}

.page-contact .contact-seal__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
}

.page-contact .contact-seal__media {
  margin: 0;
}

.page-contact .contact-seal__text h2 {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 26px;
  letter-spacing: .06em;
  color: var(--paper);
}

.page-contact .contact-seal__text p {
  margin: 0 0 16px;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(245, 241, 232, .84);
}

.page-contact .seal-facts {
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .seal-fact {
  padding-top: 11px;
  border-top: 1px solid rgba(245, 241, 232, .22);
}

.page-contact .seal-fact dt {
  margin-bottom: 5px;
  font-size: 13px;
  letter-spacing: .16em;
  color: rgba(245, 241, 232, .62);
}

.page-contact .seal-fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: .04em;
  color: var(--brass);
  overflow-wrap: anywhere;
}

.page-contact .contact-back {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px dashed rgba(245, 241, 232, .26);
}

.page-contact .contact-back a {
  color: var(--flag-yellow);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid rgba(224, 178, 60, .45);
}

.page-contact .contact-back a:hover {
  border-bottom-color: var(--flag-yellow);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-body {
    padding-top: 76px;
  }

  .page-contact .contact-body__grid {
    display: grid;
    grid-template-columns: var(--pc-rail) minmax(0, 1fr);
    gap: 0 var(--pc-gap);
    padding-left: 0;
  }

  .page-contact .contact-body__grid::before {
    left: calc(var(--pc-rail) + var(--pc-gap) / 2);
    width: 2px;
    top: 6px;
    bottom: 6px;
  }

  .page-contact .contact-main {
    margin-top: 8px;
  }

  .page-contact .contact-seal__grid {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-contact .contact-seal__media img {
    aspect-ratio: 1 / 1;
    object-fit: cover;
  }
}

@media (min-width: 1080px) {
  .page-contact .timing-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .letter-type,
  .page-contact .letter-type__hint,
  .page-contact .next-links a {
    transition: none;
  }

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