.page-contact {
  background:
    radial-gradient(1000px 560px at 85% -6%, rgba(56, 232, 200, 0.11), transparent 60%),
    radial-gradient(720px 480px at -8% 44%, rgba(255, 138, 61, 0.06), transparent 62%),
    var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

.page-contact .crumbs {
  padding-top: 22px;
}

.page-contact .crumbs a {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding: 18px 0 34px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 16px;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(28px, 6.6vw, 50px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 0;
  max-width: 20ch;
}

.page-contact .contact-hero .lede {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .hero-hours {
  margin: 24px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.page-contact .hero-hours span {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--cyan-soft);
}

.page-contact .hero-hours span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(56, 232, 200, 0.85);
  flex: none;
}

/* ---------- 主体两栏 ---------- */

.page-contact .contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  padding: 34px 0 56px;
  min-width: 0;
}

.page-contact .contact-rail {
  display: grid;
  gap: 18px;
  min-width: 0;
}

/* ---------- 联系卡 ---------- */

.page-contact .contact-card {
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius);
  padding: 22px 20px 20px;
  background: linear-gradient(180deg, rgba(56, 232, 200, 0.11) 0%, rgba(7, 22, 20, 0.58) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.34);
}

.page-contact .contact-card__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--orange);
  margin: 0 0 10px;
}

.page-contact .contact-card__title {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  color: var(--paper);
}

.page-contact .contact-card__status {
  display: inline-flex;
  align-items: center;
  margin: 0 0 18px;
  padding: 5px 12px;
  border: 1px solid rgba(245, 194, 74, 0.36);
  border-radius: var(--radius-pill);
  background: rgba(245, 194, 74, 0.08);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--amber);
}

.page-contact .channel {
  padding: 15px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .channel:first-of-type {
  border-top: 0;
  padding-top: 4px;
}

.page-contact .channel__label {
  margin: 0 0 7px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: -0.005em;
  color: var(--cyan-soft);
  overflow-wrap: anywhere;
  word-break: break-all;
}

.page-contact .channel__value--tel {
  font-size: 25px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .channel__value--addr {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.8;
  letter-spacing: 0;
  color: var(--paper);
  word-break: normal;
  overflow-wrap: break-word;
}

.page-contact .channel__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-card__hint {
  margin: 18px 0 0;
  padding-top: 15px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 页内索引 ---------- */

.page-contact .contact-index {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 16px 6px;
  background: rgba(18, 48, 40, 0.42);
}

.page-contact .contact-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

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

.page-contact .contact-index a {
  position: relative;
  display: block;
  padding: 9px 0 9px 17px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-contact .contact-index li:first-child a {
  border-top: 0;
}

.page-contact .contact-index a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(159, 179, 174, 0.45);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .contact-index a:hover,
.page-contact .contact-index a:focus-visible {
  color: var(--cyan-soft);
}

.page-contact .contact-index a.is-active {
  color: var(--cyan);
}

.page-contact .contact-index a.is-active::before {
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(56, 232, 200, 0.9);
}

/* ---------- 右侧内容 ---------- */

.page-contact .contact-body {
  display: grid;
  gap: 50px;
  min-width: 0;
}

.page-contact .c-section {
  min-width: 0;
  scroll-margin-top: 96px;
}

.page-contact .c-section__head {
  margin-bottom: 20px;
}

.page-contact .c-section__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-contact .c-section h2 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(21px, 4.2vw, 30px);
  font-weight: 700;
  line-height: 1.26;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-contact .c-section__intro {
  margin: 13px 0 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--muted);
}

/* 问题分类 */

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

.page-contact .topic {
  padding: 19px 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 8px;
}

.page-contact .topic:first-child {
  border-top: 1px solid var(--line-cyan);
}

.page-contact .topic__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-contact .topic__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-contact .topic__desc {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.88;
  color: var(--muted);
}

/* ---------- 准备清单 ---------- */

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

.page-contact .checklist__item {
  border-top: 1px solid var(--line-soft);
}

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

.page-contact .checklist__label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 2px;
  cursor: pointer;
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  position: relative;
  border: 1px solid var(--line-cyan);
  border-radius: 5px;
  background: rgba(56, 232, 200, 0.06);
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .checklist__box:checked {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .checklist__box:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 11px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(42deg);
}

.page-contact .checklist__box:focus-visible {
  outline: 2px solid var(--cyan-soft);
  outline-offset: 2px;
}

.page-contact .checklist__text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
  transition: opacity var(--dur) var(--ease);
}

.page-contact .checklist__text em {
  display: block;
  margin-top: 3px;
  font-style: normal;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .checklist__label:has(.checklist__box:checked) .checklist__text {
  opacity: 0.44;
}

/* ---------- 配图 ---------- */

.page-contact .section-figure {
  margin: 26px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--muted);
}

/* ---------- 来信节奏 ---------- */

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

.page-contact .hours-item {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 16px 0 16px 20px;
  border-left: 1px solid var(--line);
}

.page-contact .hours-item::before {
  content: "";
  position: absolute;
  left: -3px;
  top: 23px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 0 0 1px var(--line-cyan);
}

.page-contact .hours-item__time {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-contact .hours-item__text {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.88;
  color: var(--muted);
}

/* ---------- 折叠块 ---------- */

.page-contact .fold {
  margin: 24px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(18, 48, 40, 0.5);
  overflow: hidden;
}

.page-contact .fold summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  color: var(--cyan-soft);
}

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

.page-contact .fold summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
}

.page-contact .fold[open] summary::before {
  content: "—";
}

.page-contact .fold__body {
  padding: 0 18px 16px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .fold__body p {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 反馈条目 ---------- */

.page-contact .report-list {
  margin: 0;
  padding: 0;
}

.page-contact .report-item {
  display: grid;
  gap: 7px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-contact .report-item:first-child {
  border-top: 1px solid var(--line-cyan);
}

.page-contact .report-item dt {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .report-item dd {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.88;
  color: var(--muted);
}

/* ---------- 底部快捷带 ---------- */

.page-contact .quick-strip {
  padding: 0 0 60px;
}

.page-contact .quick-strip__rule {
  display: block;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(56, 232, 200, 0.06) 92%);
}

.page-contact .quick-strip__title {
  margin: 26px 0 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .quick-strip__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .quick-strip__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(56, 232, 200, 0.05);
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .quick-strip__link:hover,
.page-contact .quick-strip__link:focus-visible {
  border-color: var(--line-cyan);
  background: rgba(56, 232, 200, 0.13);
  color: var(--cyan-soft);
}

.page-contact .quick-strip__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ---------- 断点 ---------- */

@media (max-width: 420px) {
  .page-contact .channel__value {
    font-size: 14px;
  }
  .page-contact .channel__value--tel {
    font-size: 21px;
  }
}

@media (min-width: 700px) {
  .page-contact .contact-hero {
    padding: 26px 0 44px;
  }
  .page-contact .contact-hero .lede {
    font-size: 17px;
  }
  .page-contact .contact-layout {
    padding: 44px 0 68px;
  }
  .page-contact .contact-body {
    gap: 58px;
  }
  .page-contact .report-item {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 26px;
    align-items: baseline;
  }
}

@media (min-width: 1040px) {
  .page-contact .contact-layout {
    grid-template-columns: 340px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
  .page-contact .contact-rail {
    position: sticky;
    top: 96px;
  }
  .page-contact .contact-card {
    padding: 26px 24px 22px;
  }
  .page-contact .quick-strip {
    padding-bottom: 78px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}