.page-contact {
  --contact-ink: rgba(14, 43, 36, .74);
  --contact-ink-soft: rgba(14, 43, 36, .5);
  --contact-fg-soft: rgba(241, 235, 224, .74);
  --contact-rail: 340px;
  position: relative;
  padding-bottom: clamp(48px, 8vw, 104px);
  background:
    radial-gradient(120% 70% at 100% 0%, rgba(200, 242, 78, .07), transparent 58%),
    linear-gradient(180deg, var(--c-stand) 0%, var(--c-well) 100%);
  color: var(--fg);
  overflow-x: clip;
}

.page-contact .contact-intro {
  padding-top: clamp(28px, 5vw, 56px);
  max-width: 940px;
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 34px);
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--fg-dim);
}

.page-contact .breadcrumb__list li + li::before {
  content: "／";
  margin-right: 8px;
  color: var(--c-orange);
}

.page-contact .breadcrumb__list a {
  color: var(--c-lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 242, 78, .4);
}

.page-contact .breadcrumb__list a:hover {
  border-bottom-color: var(--c-lime);
}

.page-contact .contact-intro__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-orange);
}

.page-contact .contact-intro__title {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6.6vw, 68px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--c-cream);
  text-wrap: balance;
}

.page-contact .contact-intro__lead {
  margin: 0;
  max-width: 66ch;
  font-size: clamp(15.5px, 1.5vw, 17.5px);
  line-height: 1.85;
  color: var(--contact-fg-soft);
}

/* ---------- 左右分置：固定联络卡 + 右侧下沉内容 ---------- */

.page-contact .contact-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4.5vw, 64px);
  margin-top: clamp(32px, 5vw, 64px);
  align-items: start;
}

.page-contact .contact-card {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  background: var(--c-cream);
  color: var(--c-stand);
  border-radius: var(--r-organic-a);
  border-top: 4px solid var(--c-orange);
  box-shadow: var(--shadow-panel);
}

.page-contact .contact-card__tag {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--c-orange-deep);
}

.page-contact .contact-card__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 2.4vw, 26px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--c-stand);
}

.page-contact .contact-item {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-top: 1px solid rgba(14, 43, 36, .16);
}

.page-contact .contact-item:first-of-type {
  margin-top: 16px;
}

.page-contact .contact-item__key {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--c-orange-deep);
}

.page-contact .contact-item__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.65;
  letter-spacing: .01em;
  color: var(--c-stand);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .contact-item__val--addr {
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--contact-ink);
}

.page-contact .contact-item__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.page-contact .contact-card__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(14, 43, 36, .16);
  font-size: 13px;
  line-height: 1.8;
  color: var(--contact-ink-soft);
}

/* ---------- 右侧内容流 ---------- */

.page-contact .contact-flow {
  display: grid;
  gap: clamp(40px, 5.5vw, 72px);
  min-width: 0;
}

.page-contact .section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(16px, 2.2vw, 24px);
}

.page-contact .section-head__idx {
  flex: none;
  margin: 0;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-orange);
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 30px);
  letter-spacing: -.01em;
  color: var(--c-cream);
}

.page-contact .section-title__rule {
  display: inline-block;
  width: 48px;
  height: 2px;
  margin-left: 14px;
  vertical-align: middle;
  background: var(--c-orange);
}

.page-contact .section-lead {
  max-width: 62ch;
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--contact-fg-soft);
}

/* ---------- 01 先选一件事 ---------- */

.page-contact .task-list {
  list-style: none;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
}

.page-contact .task {
  display: grid;
  gap: 9px;
  align-content: start;
  padding: 22px 22px 20px;
  background: var(--veil);
  border: 1px solid var(--hair);
  border-radius: var(--r-organic-c);
  transition: background .22s ease, transform .22s ease, border-color .22s ease;
}

.page-contact .task:hover {
  background: var(--veil-hover);
  border-color: rgba(200, 242, 78, .28);
  transform: translateY(-2px);
}

.page-contact .task__num {
  margin: 0;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-lime);
}

.page-contact .task__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -.005em;
  color: var(--c-cream);
}

.page-contact .task__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--contact-fg-soft);
}

.page-contact .task__link {
  justify-self: start;
  margin-top: 2px;
  font-size: 14px;
}

/* ---------- 02 邮件怎么写更快 ---------- */

.page-contact .mail-split {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
  margin-bottom: clamp(22px, 3vw, 30px);
}

.page-contact .mail-split__text .section-lead {
  margin-bottom: 6px;
}

.page-contact .mail-split__figure {
  margin: 0;
}

.page-contact .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-organic-b);
}

.page-contact .media-frame__caption {
  display: block;
  margin-top: 10px;
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--fg-dim);
}

.page-contact .need-list {
  list-style: none;
  display: grid;
  gap: 11px;
  margin: 16px 0 0;
  padding: 0;
}

.page-contact .need-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--contact-fg-soft);
}

.page-contact .need-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 11px;
  height: 2px;
  background: var(--c-orange);
}

.page-contact .mail-template {
  background: var(--c-night);
  border: 1px solid var(--hair);
  border-radius: var(--r-soft);
  overflow: hidden;
}

.page-contact .mail-template__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(241, 235, 224, .04);
  border-bottom: 1px solid var(--hair);
}

.page-contact .mail-template__label {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--c-lime);
}

.page-contact .mail-template__body {
  margin: 0;
  padding: 18px 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.95;
  letter-spacing: .02em;
  color: var(--c-lime-mist);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* ---------- 03 服务范围与时段 ---------- */

.page-contact .chan-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
}

.page-contact .filter-btn {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--hair-2);
  background: transparent;
  color: var(--c-cream);
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-contact .filter-btn:hover {
  background: var(--veil-hover);
}

.page-contact .filter-btn[aria-pressed="true"] {
  background: var(--c-lime-mist);
  border-color: var(--c-lime-mist);
  color: var(--c-well);
  font-weight: 700;
}

.page-contact .filter-btn:focus-visible {
  outline: 2px solid var(--c-lime);
  outline-offset: 3px;
}

.page-contact .filter-status {
  margin: 0 0 18px;
  min-height: 1.2em;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-lime);
}

.page-contact .chan-grid {
  display: grid;
  gap: 16px;
}

.page-contact .chan {
  display: grid;
  gap: 13px;
  align-content: start;
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--r-organic-a);
  border: 1px solid rgba(200, 242, 78, .2);
  background: linear-gradient(158deg, var(--c-mid) 0%, rgba(27, 74, 59, .32) 100%);
}

.page-contact .chan[hidden] {
  display: none;
}

.page-contact .chan__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -.01em;
  color: var(--c-cream);
}

.page-contact .chan__list {
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.page-contact .chan__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(241, 235, 224, .8);
}

.page-contact .chan__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-lime);
}

.page-contact .chan .link-lime {
  justify-self: start;
  font-size: 14px;
}

.page-contact .scope-note {
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--c-lime);
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-cream);
}

/* ---------- 04 常见的一步到位 ---------- */

.page-contact .summary-grid {
  display: grid;
  gap: 14px;
}

.page-contact .summary-card {
  background: var(--veil);
  border: 1px solid var(--hair);
  border-radius: var(--r-organic-c);
  overflow: hidden;
  transition: border-color .22s ease, background .22s ease;
}

.page-contact .summary-card[data-open] {
  background: var(--veil-hover);
  border-color: rgba(255, 138, 61, .34);
}

.page-contact .summary-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 18px;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-contact .summary-card__head:focus-visible {
  outline: 2px solid var(--c-lime);
  outline-offset: -3px;
}

.page-contact .summary-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--c-cream);
}

.page-contact .summary-card__meta {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-orange);
}

.page-contact .summary-card__body {
  display: none;
}

.page-contact .summary-card[data-open] .summary-card__body {
  display: block;
}

.page-contact .summary-card__inner {
  display: grid;
  gap: 8px;
  padding: 0 18px 18px;
  border-top: 1px solid var(--hair);
  padding-top: 14px;
}

.page-contact .summary-card__text {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--fg-dim);
}

.page-contact .summary-card__code {
  margin: 0 0 6px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--c-night);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--c-lime-mist);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* ---------- 05 站点与备案信息 ---------- */

.page-contact .site-banner {
  position: relative;
  margin: 0 0 clamp(22px, 3vw, 30px);
  border-radius: var(--r-organic-b);
  border: 1px solid var(--hair);
  overflow: hidden;
}

.page-contact .site-banner__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: .46;
  filter: saturate(.55) contrast(1.06);
}

.page-contact .site-meta {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--hair);
  border: 1px solid var(--hair);
  border-radius: var(--r-soft);
  overflow: hidden;
}

.page-contact .site-meta > div {
  display: grid;
  gap: 6px;
  padding: 15px 16px;
  background: var(--c-night);
}

.page-contact .site-meta dt {
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--c-orange);
}

.page-contact .site-meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-cream);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .site-info__note {
  max-width: 64ch;
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--contact-fg-soft);
}

.page-contact .site-info__strip {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--hair);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--fg-dim);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .task-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-contact .chan-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .site-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .mail-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
  }

  .page-contact .summary-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-contact .contact-shell {
    grid-template-columns: minmax(0, var(--contact-rail)) minmax(0, 1fr);
  }

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

  .page-contact .task-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 719px) {
  .page-contact .task,
  .page-contact .chan,
  .page-contact .summary-card {
    border-radius: 16px;
  }

  .page-contact .section-title__rule {
    width: 30px;
    margin-left: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .task,
  .page-contact .summary-card,
  .page-contact .filter-btn {
    transition: none;
  }

  .page-contact .task:hover {
    transform: none;
  }
}