.page-contact {
  --contact-cut: 14px;
  padding-bottom: clamp(40px, 6vw, 88px);
  background:
    radial-gradient(900px 420px at 84% -6%, rgba(245, 160, 60, .10), transparent 70%),
    radial-gradient(760px 400px at 4% 10%, rgba(79, 179, 160, .08), transparent 72%);
}

.page-contact .contact-crumb {
  padding-top: clamp(18px, 2.6vw, 30px);
}

/* ---------- Hero ---------- */
.page-contact .contact-hero {
  padding-block: clamp(20px, 3vw, 40px) clamp(16px, 2.2vw, 28px);
}

.page-contact .contact-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
}

.page-contact .contact-hero-main h1 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 4.6vw, 62px);
  line-height: 1.05;
  letter-spacing: .01em;
  color: var(--fg);
}

.page-contact .contact-hero-main .lead {
  max-width: 46ch;
  color: var(--fg-dim);
}

.page-contact .contact-hero-actions {
  margin-top: clamp(18px, 2.4vw, 28px);
}

.page-contact .contact-stats {
  display: grid;
  gap: 12px;
  margin: 0;
}

.page-contact .contact-stat {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  padding: 13px 18px;
  background: rgba(37, 51, 92, .72);
  border-left: 3px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.page-contact .contact-stat--amber { border-left-color: var(--amber); }
.page-contact .contact-stat--celadon { border-left-color: var(--celadon); }
.page-contact .contact-stat--line { border-left-color: rgba(88, 112, 170, .7); }

.page-contact .contact-stat-num {
  font-family: var(--font-mono);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 500;
  color: var(--mark);
}

.page-contact .contact-stat-label {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--fg-dim);
}

/* ---------- 锚点条 ---------- */
.page-contact .contact-anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(24px, 3.2vw, 42px);
  padding-block: 14px;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .anchor-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--fg-dim);
  text-decoration: none;
  background: var(--mist);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: color .32s var(--ease), background-color .32s var(--ease);
}

.page-contact .anchor-chip .mono {
  color: var(--amber);
  font-size: 12px;
}

.page-contact .anchor-chip:hover,
.page-contact .anchor-chip:focus-visible {
  color: var(--fg);
  background: var(--panel);
}

/* ---------- 章节头 ---------- */
.page-contact .contact-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(18px, 2.4vw, 30px);
}

.page-contact .contact-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.2vw, 32px);
  line-height: 1.2;
  color: var(--fg);
}

/* ---------- 通用分栏 ---------- */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 2.8vw, 34px);
}

/* ---------- 联系卡片 ---------- */
.page-contact .contact-card {
  padding: clamp(18px, 2.6vw, 30px);
  background: linear-gradient(158deg, rgba(37, 51, 92, .96) 0%, rgba(27, 39, 72, .96) 100%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--cut-lg)) 0, 100% var(--cut-lg), 100% 100%, var(--cut-lg) 100%, 0 calc(100% - var(--cut-lg)));
}

.page-contact .channel + .channel {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px dashed var(--line-soft);
}

.page-contact .channel-kicker {
  margin-top: 12px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--fg-dim);
}

.page-contact .channel-value {
  margin: 8px 0 14px;
  font-size: clamp(16px, 2vw, 23px);
  font-weight: 500;
  letter-spacing: .01em;
  color: var(--mark);
  word-break: break-all;
}

.page-contact .copy-btn {
  transition: color .32s var(--ease), border-color .32s var(--ease);
}

.page-contact .copy-btn[data-copied="true"] {
  color: var(--celadon);
  border-color: var(--celadon);
}

.page-contact .channel-note {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-dim);
}

/* ---------- 渠道右侧 ---------- */
.page-contact .contact-side {
  display: grid;
  gap: clamp(18px, 2.4vw, 26px);
  align-content: start;
}

.page-contact .figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - var(--contact-cut)) 0, 100% var(--contact-cut), 100% 100%, var(--contact-cut) 100%, 0 calc(100% - var(--contact-cut)));
  background: var(--mist);
}

.page-contact .figure-caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--fg-dim);
}

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

.page-contact .channel-scenes li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-dim);
  background: rgba(27, 39, 72, .7);
  border-left: 2px solid rgba(245, 160, 60, .55);
}

.page-contact .scene-num {
  color: var(--amber);
  font-size: 12px;
  line-height: 1.9;
}

/* ---------- 时间带 ---------- */
.page-contact .contact-timeline {
  margin: 4px 0 26px;
}

.page-contact .tl-bar {
  position: relative;
  height: 46px;
  border: 1px solid var(--line-soft);
  background:
    repeating-linear-gradient(90deg, rgba(166, 178, 204, .16) 0 1px, transparent 1px 4.1667%),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 0 37.5%, rgba(79, 179, 160, .26) 37.5% 75%, rgba(255, 255, 255, .05) 75% 100%);
  clip-path: polygon(0 0, calc(100% - var(--contact-cut)) 0, 100% var(--contact-cut), 100% 100%, var(--contact-cut) 100%, 0 calc(100% - var(--contact-cut)));
}

.page-contact .tl-window {
  position: absolute;
  left: 37.5%;
  top: 0;
  width: 37.5%;
  height: 4px;
  background: var(--amber);
}

.page-contact .tl-window::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--celadon);
}

.page-contact .tl-labels {
  position: relative;
  height: 18px;
  margin-top: 10px;
  font-size: 12px;
  color: var(--fg-dim);
}

.page-contact .tl-label {
  position: absolute;
  transform: translateX(-50%);
  white-space: nowrap;
}

.page-contact .tl-label--start { left: 37.5%; color: var(--celadon); }
.page-contact .tl-label--end { left: 75%; color: var(--amber); }

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

.page-contact .rhythm-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-contact .rhythm-mark {
  font-size: 12px;
  color: var(--mark);
  padding: 4px 8px;
  background: rgba(255, 217, 160, .10);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%);
  white-space: nowrap;
}

.page-contact .rhythm-text {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--fg-dim);
}

/* ---------- 到访地址 ---------- */
.page-contact .visit-panel {
  display: grid;
  gap: clamp(20px, 2.6vw, 32px);
  padding: clamp(20px, 3vw, 34px);
  background: linear-gradient(120deg, rgba(37, 51, 92, .92) 0%, rgba(27, 39, 72, .92) 100%);
  border: 1px solid var(--line);
  border-left: 4px solid var(--celadon);
  clip-path: polygon(0 0, calc(100% - var(--cut-lg)) 0, 100% var(--cut-lg), 100% 100%, calc(var(--cut-md)) 100%, 0 calc(100% - var(--cut-md)));
}

.page-contact .visit-address {
  margin: 12px 0 16px;
  font-size: clamp(18px, 2.2vw, 25px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--fg);
}

.page-contact .visit-notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-contact .visit-notes li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-dim);
}

.page-contact .visit-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 2px;
  background: var(--amber);
}

/* ---------- 自查清单 ---------- */
.page-contact .contact-checklist {
  padding: clamp(18px, 2.6vw, 30px);
  background: rgba(16, 28, 61, .55);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - var(--cut-lg)) 0, 100% var(--cut-lg), 100% 100%, var(--cut-lg) 100%, 0 calc(100% - var(--cut-lg)));
}

.page-contact .contact-meter {
  display: flex;
  gap: 6px;
}

.page-contact .contact-meter-seg {
  flex: 1;
  height: 6px;
  background: var(--mist);
  transition: background-color .32s var(--ease);
}

.page-contact .contact-checklist:has(#chk-search:checked) .contact-meter-seg:nth-child(1),
.page-contact .contact-checklist:has(#chk-version:checked) .contact-meter-seg:nth-child(2),
.page-contact .contact-checklist:has(#chk-export:checked) .contact-meter-seg:nth-child(3),
.page-contact .contact-checklist:has(#chk-device:checked) .contact-meter-seg:nth-child(4) {
  background: var(--celadon);
}

.page-contact .contact-meter-hint {
  margin-top: 10px;
  font-size: 13px;
  color: var(--fg-dim);
}

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

.page-contact .contact-check {
  position: relative;
}

.page-contact .check-input {
  position: absolute;
  left: 0;
  top: 18px;
  width: 22px;
  height: 22px;
  margin: 0;
  opacity: 0;
}

.page-contact .check-label {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 4px;
  border-bottom: 1px dashed var(--line-soft);
  cursor: pointer;
}

.page-contact .check-input:focus-visible + .check-label {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-contact .check-box {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  background: rgba(10, 18, 41, .7);
  border: 1px solid rgba(88, 112, 170, .72);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%);
  transition: background-color .32s var(--ease), border-color .32s var(--ease);
}

.page-contact .check-input:checked + .check-label .check-box {
  background: var(--celadon);
  border-color: var(--celadon);
}

.page-contact .check-input:checked + .check-label .check-box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 3px;
  width: 6px;
  height: 11px;
  border-right: 2px solid #0A1229;
  border-bottom: 2px solid #0A1229;
  transform: rotate(40deg);
}

.page-contact .check-text {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--fg-dim);
  transition: color .32s var(--ease);
}

.page-contact .check-text strong {
  display: block;
  margin-bottom: 2px;
  font-weight: 600;
  color: var(--fg);
}

.page-contact .check-input:checked + .check-label .check-text {
  color: rgba(166, 178, 204, .72);
}

/* ---------- 站点信息 ---------- */
.page-contact .contact-identity {
  border-top: 1px solid var(--line-soft);
}

.page-contact .identity-item {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  margin: 0;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .identity-k {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--fg-dim);
}

.page-contact .identity-v {
  font-size: 15px;
  line-height: 1.7;
  color: var(--fg);
  word-break: break-word;
}

.page-contact .identity-v.mono {
  color: var(--mark);
}

.page-contact .identity-note {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--fg-dim);
  max-width: 62ch;
}

.page-contact .inline-link {
  color: var(--celadon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .inline-link:hover {
  color: var(--amber);
}

/* ---------- 下一步 ---------- */
.page-contact .contact-next {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  padding: clamp(22px, 3.4vw, 42px);
  background: linear-gradient(132deg, rgba(37, 51, 92, .95) 0%, rgba(27, 39, 72, .95) 58%, rgba(10, 18, 41, .95) 100%);
  border: 1px solid var(--line);
  border-left: 4px solid var(--amber);
  clip-path: polygon(0 0, calc(100% - var(--cut-lg)) 0, 100% var(--cut-lg), 100% 100%, 0 100%);
}

.page-contact .contact-next-main h2 {
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.4vw, 34px);
  line-height: 1.18;
  color: var(--fg);
}

.page-contact .contact-next-main p {
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--fg-dim);
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 720px) {
  .page-contact .identity-item {
    grid-template-columns: 120px minmax(0, 1fr);
  }
}

@media (min-width: 880px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-contact .contact-split--reverse .contact-side {
    order: 2;
  }

  .page-contact .visit-panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-next {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: end;
  }
}

@media (max-width: 560px) {
  .page-contact .contact-stat {
    padding: 12px 14px;
  }

  .page-contact .anchor-chip {
    padding: 7px 11px;
    font-size: 12px;
  }

  .page-contact .check-label {
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 11px;
  }

  .page-contact .channel-value {
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .anchor-chip,
  .page-contact .copy-btn,
  .page-contact .contact-meter-seg,
  .page-contact .check-box,
  .page-contact .check-text {
    transition: none;
  }
}