.page-contact {
  background: var(--c-paper);
}

/* ---------- breadcrumbs 内边距 ---------- */
.page-contact .breadcrumbs {
  padding-top: 84px;
  padding-bottom: 8px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 7vw, 80px);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: -18%;
  top: -46%;
  width: 62%;
  height: 190%;
  transform: rotate(8deg);
  background: linear-gradient(140deg, rgba(47, 125, 92, .16), rgba(47, 183, 196, .12) 58%, rgba(255, 106, 43, .07));
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-contact .contact-hero__text {
  min-width: 0;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--c-ink);
  margin: 14px 0 0;
  max-width: 20ch;
}

.page-contact .contact-hero .lede {
  margin: 20px 0 0;
  max-width: 56ch;
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--c-muted);
}

.page-contact .contact-hero__panel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-items: center;
  gap: 2px 14px;
  align-self: start;
  padding: 18px 22px;
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-orange);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, .7);
  box-shadow: var(--shadow-soft);
}

.page-contact .contact-hero__panel-num {
  grid-row: 1 / 3;
  font-family: var(--font-mono);
  font-size: clamp(42px, 6vw, 66px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--c-ink);
}

.page-contact .contact-hero__panel-unit {
  font-family: var(--font-heading);
  font-size: 15px;
  line-height: 1.35;
  font-weight: 600;
  color: var(--c-green-deep);
}

.page-contact .contact-hero__panel-note {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--c-muted);
}

/* ---------- 主体两栏 ---------- */
.page-contact .contact-main {
  padding-top: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(36px, 6vw, 72px);
}

.page-contact .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
}

/* ---------- 左侧联系卡 ---------- */
.page-contact .contact-card {
  min-width: 0;
  padding: clamp(22px, 3.4vw, 32px);
  background: var(--c-sand);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
}

.page-contact .contact-card__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--c-green-deep);
}

.page-contact .contact-card__note {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-contact .channel-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .channel {
  padding: 16px 0;
  border-top: 1px solid rgba(14, 31, 51, .12);
}

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

.page-contact .channel__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--c-green-deep);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.8vw, 15.5px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--c-ink);
  word-break: break-all;
}

.page-contact .channel__value--addr {
  font-family: var(--font-body);
  font-weight: 600;
  word-break: break-word;
}

.page-contact .channel__use {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-contact .copy-hint {
  margin-top: 10px;
}

.page-contact .copy-hint summary {
  display: inline-block;
  list-style: none;
  cursor: pointer;
  padding: 4px 12px;
  font-family: var(--font-heading);
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-green-deep);
  background: rgba(255, 255, 255, .68);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  transition: border-color .18s ease, color .18s ease;
}

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

.page-contact .copy-hint summary:hover {
  color: var(--c-orange);
  border-color: var(--c-orange);
}

.page-contact .copy-hint__value {
  margin: 8px 0 0;
  padding: 9px 11px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-ink);
  background: rgba(255, 255, 255, .8);
  border: 1px dashed var(--c-line);
  border-radius: 8px;
  word-break: break-all;
  user-select: all;
}

/* ---------- 右侧内容流 ---------- */
.page-contact .contact-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.page-contact .contact-block {
  padding: clamp(26px, 4vw, 42px) 0;
  border-top: 1px solid var(--c-line);
}

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

.page-contact .contact-block__index {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .18em;
  color: var(--c-orange);
}

.page-contact .contact-block__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}

.page-contact .body-text {
  margin: 0 0 16px;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-muted);
}

.page-contact .body-text:last-child {
  margin-bottom: 0;
}

.page-contact .body-text strong {
  color: var(--c-ink);
  font-weight: 600;
}

.page-contact .body-text a {
  color: var(--c-green-deep);
  text-decoration: underline;
  text-decoration-color: rgba(47, 125, 92, .45);
  text-underline-offset: 3px;
  transition: color .18s ease, text-decoration-color .18s ease;
}

.page-contact .body-text a:hover {
  color: var(--c-orange);
  text-decoration-color: var(--c-orange);
}

/* ---------- 纠错自查清单 ---------- */
.page-contact .checklist {
  list-style: none;
  margin: 4px 0 20px;
  padding: 0;
  display: grid;
  gap: 2px;
}

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

.page-contact .checklist__label {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 11px 12px 11px 10px;
  border-radius: 10px;
  cursor: pointer;
  transition: background-color .18s ease;
}

.page-contact .checklist__label:hover {
  background: rgba(47, 125, 92, .08);
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  border: 1.5px solid var(--c-green);
  border-radius: 4px;
  background: var(--c-paper);
  cursor: pointer;
  flex: none;
  transition: background-color .16s ease, border-color .16s ease;
}

.page-contact .checklist__box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--c-paper);
  border-bottom: 2px solid var(--c-paper);
  transform: rotate(42deg) scale(.2);
  opacity: 0;
  transition: opacity .16s ease, transform .16s ease;
}

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

.page-contact .checklist__box:checked::after {
  opacity: 1;
  transform: rotate(42deg) scale(1);
}

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

.page-contact .checklist__text {
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--c-muted);
}

.page-contact .checklist__text strong {
  color: var(--c-ink);
  font-weight: 600;
}

/* ---------- 图 ---------- */
.page-contact .block-figure {
  margin: 0 0 20px;
}

.page-contact .block-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--c-line);
  border-radius: 12px;
  background: var(--c-sand);
}

.page-contact .block-figure figcaption {
  margin-top: 10px;
  padding-left: 10px;
  border-left: 2px solid var(--c-cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  color: var(--c-muted);
}

/* ---------- 菱点列表 ---------- */
.page-contact .plain-list {
  list-style: none;
  margin: 4px 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .plain-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--c-muted);
}

.page-contact .plain-list li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 10px;
  width: 7px;
  height: 7px;
  border: 1.5px solid var(--c-green);
  transform: rotate(45deg);
}

.page-contact .plain-list li strong {
  color: var(--c-ink);
  font-weight: 600;
}

/* ---------- 回复节奏 ---------- */
.page-contact .rhythm {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 4px 0 20px;
  padding: clamp(18px, 3vw, 26px);
  background: var(--c-green-pale);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
}

.page-contact .rhythm__item {
  min-width: 0;
  padding-left: 16px;
  border-left: 2px solid var(--c-green);
}

.page-contact .rhythm__value {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-contact .rhythm__num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--c-ink);
}

.page-contact .rhythm__unit {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-green-deep);
}

.page-contact .rhythm__desc {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* ---------- 通栏图 ---------- */
.page-contact .contact-wide {
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-contact .contact-wide figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
  background: var(--c-sand);
}

.page-contact .contact-wide img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 14 / 9;
}

.page-contact .contact-wide__caption {
  position: relative;
  margin: 0;
  padding: 12px clamp(14px, 3vw, 22px);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-muted);
  background: var(--c-sand);
  border-top: 1px solid var(--c-line);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .rhythm {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 880px) {
  .page-contact .breadcrumbs {
    padding-top: 104px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(228px, .72fr);
    align-items: center;
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-layout {
    grid-template-columns: minmax(280px, 358px) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
    align-items: start;
  }

  .page-contact .contact-card {
    position: sticky;
    top: 104px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .checklist__box::after,
  .page-contact .checklist__label,
  .page-contact .copy-hint summary,
  .page-contact .body-text a {
    transition: none;
  }
}