.page-contact {
  --pc-gap: clamp(20px, 3vw, 40px);
  --pc-section: clamp(44px, 7vw, 88px);
  --pc-shadow: 8px 8px 0 rgba(0, 0, 0, .38);
  background: var(--ink);
  color: var(--bone);
  padding-bottom: clamp(40px, 6vw, 72px);
  overflow-x: clip;
}

.page-contact .contact-wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rock);
}

.page-contact .breadcrumb a {
  color: var(--rock);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .breadcrumb a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 焦点态 ---------- */
.page-contact :focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: var(--pc-gap);
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(34px, 5vw, 64px);
  border-bottom: 2px solid var(--line-strong);
}

.page-contact .hero-lead .eyebrow {
  margin: 0 0 14px;
}

.page-contact h1 {
  margin: 0 0 18px;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.18;
  letter-spacing: -.5px;
  color: var(--bone);
}

.page-contact .hero-intro {
  margin: 0 0 clamp(22px, 3vw, 34px);
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--rock);
}

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

.page-contact .channel {
  position: relative;
  padding: 18px 20px 20px;
  background: var(--slate-deep);
  border: 2px solid var(--line-strong);
  border-left-width: 6px;
  box-shadow: var(--pc-shadow);
}

.page-contact .channel--mail {
  border-left-color: var(--cyan);
}

.page-contact .channel--tel {
  border-left-color: var(--clay);
}

.page-contact .channel-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--rock);
}

.page-contact .channel-value {
  margin: 0 0 12px;
  font-size: clamp(19px, 3.6vw, 30px);
  line-height: 1.25;
  color: var(--bone);
  word-break: break-word;
}

.page-contact .copy-btn {
  display: inline-block;
  padding: 7px 14px;
  background: transparent;
  color: var(--bone);
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  cursor: pointer;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn[data-copied] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-contact .channel-hint {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--rock);
}

/* ---------- 首屏右侧：时间环 ---------- */
.page-contact .hero-aside {
  display: grid;
  gap: 20px;
}

.page-contact .hours-card {
  padding: 20px;
  background: var(--moss);
  border: 2px solid var(--line-strong);
  box-shadow: var(--pc-shadow);
}

.page-contact .hours-card__kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .hours-ring {
  display: block;
  width: 100%;
  max-width: 300px;
  margin: 0 auto;
  height: auto;
}

.page-contact .ring-track {
  fill: none;
  stroke: rgba(119, 133, 126, .25);
  stroke-width: 12;
}

.page-contact .ring-base,
.page-contact .ring-ext {
  fill: none;
  stroke-width: 14;
  transition: stroke-width .25s var(--ease);
}

.page-contact .ring-base {
  stroke: var(--cyan);
}

.page-contact .ring-ext {
  stroke: var(--orange);
}

.page-contact .ring-base:hover,
.page-contact .ring-ext:hover {
  stroke-width: 19;
}

.page-contact .ring-label {
  fill: var(--bone);
  font-family: var(--font-mono);
  font-size: 17px;
  letter-spacing: -.4px;
}

.page-contact .ring-sub {
  fill: var(--rock);
  font-family: var(--font-body);
  font-size: 11px;
}

.page-contact .hours-legend {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 13.5px;
  color: var(--rock);
}

.page-contact .hours-legend li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .dot {
  width: 12px;
  height: 12px;
  flex: none;
  display: inline-block;
}

.page-contact .dot--base {
  background: var(--cyan);
}

.page-contact .dot--ext {
  background: var(--orange);
}

.page-contact .hero-media {
  border: 2px solid var(--line-strong);
}

/* ---------- 通用媒体框 ---------- */
.page-contact .media-frame {
  overflow: hidden;
  background: var(--coal);
}

.page-contact .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .media-frame--wide img {
  aspect-ratio: 16 / 10;
}

.page-contact .figure-caption {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--rock);
}

/* ---------- 章节入口 ---------- */
.page-contact .section-band {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 16px;
  margin-bottom: clamp(20px, 3vw, 30px);
  border-bottom: 2px solid var(--line-strong);
}

.page-contact .section-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--clay);
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.3;
  color: var(--bone);
}

/* ---------- 在线时间 ---------- */
.page-contact .hours-section {
  margin-top: var(--pc-section);
}

.page-contact .hours-grid {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .hours-copy p {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--bone);
}

.page-contact .hours-note {
  color: var(--rock) !important;
  font-size: 14.5px !important;
  border-left: 3px solid var(--cyan);
  padding-left: 14px;
}

.page-contact .hours-dl {
  margin: 0 0 20px;
  border-top: 1px solid var(--line);
}

.page-contact .hours-dl__row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  justify-content: space-between;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .hours-dl dt {
  font-size: 14px;
  color: var(--rock);
  letter-spacing: .04em;
}

.page-contact .hours-dl dd {
  margin: 0;
  font-size: 15px;
  color: var(--cyan);
}

.page-contact .hours-media {
  margin: 0;
}

.page-contact .hours-media .media-frame {
  border: 2px solid var(--line-strong);
  box-shadow: var(--pc-shadow);
}

/* ---------- 地址信息带 ---------- */
.page-contact .address-band {
  margin-top: var(--pc-section);
  padding: clamp(26px, 4vw, 46px) var(--pad-x);
  background: var(--moss);
  border-top: 3px solid var(--clay);
  border-bottom: 3px solid var(--clay);
}

.page-contact .address-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.page-contact .eyebrow--on-moss {
  margin: 0 0 12px;
}

.page-contact .address-title {
  margin: 0;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(20px, 3.4vw, 30px);
  line-height: 1.4;
  letter-spacing: -.3px;
  color: var(--bone);
}

.page-contact .address-right p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.75;
  color: rgba(242, 239, 230, .86);
}

.page-contact .address-meta {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--cyan);
}

/* ---------- 纠错与合作 ---------- */
.page-contact .assist-section {
  margin-top: var(--pc-section);
}

.page-contact .assist-grid {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .assist-card {
  padding: clamp(20px, 3vw, 28px);
  background: var(--slate-deep);
  border: 2px solid var(--line-strong);
  border-top: 6px solid var(--cyan);
  box-shadow: var(--pc-shadow);
}

.page-contact .assist-card--alt {
  border-top-color: var(--clay);
}

.page-contact .assist-tag {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--rock);
}

.page-contact .assist-title {
  margin: 0 0 14px;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(19px, 2.6vw, 24px);
  line-height: 1.45;
  color: var(--bone);
}

.page-contact .assist-card p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.75;
  color: rgba(242, 239, 230, .86);
}

.page-contact .assist-card a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 225, 198, .45);
}

.page-contact .assist-card a:hover {
  border-bottom-color: var(--cyan);
}

.page-contact .note-details {
  margin-top: 18px;
  background: rgba(10, 31, 27, .55);
  border: 1px solid var(--line);
}

.page-contact .note-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--cyan);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .note-details summary::after {
  content: "＋";
  font-family: var(--font-mono);
  color: var(--clay);
}

.page-contact .note-details[open] summary::after {
  content: "－";
}

.page-contact .detail-list {
  margin: 0;
  padding: 4px 18px 18px 18px;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .detail-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(242, 239, 230, .86);
}

.page-contact .detail-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 2px;
  background: var(--clay);
}

/* ---------- 提交前准备 ---------- */
.page-contact .prep-section {
  margin-top: var(--pc-section);
  padding-bottom: clamp(20px, 3vw, 36px);
}

.page-contact .prep-lead {
  margin: 0 0 26px;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--rock);
}

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

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.page-contact .prep-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .prep-num {
  font-size: 20px;
  line-height: 1.3;
  color: var(--clay);
}

.page-contact .prep-title {
  margin: 0 0 8px;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(17px, 2.4vw, 21px);
  color: var(--bone);
}

.page-contact .prep-text {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.75;
  color: rgba(242, 239, 230, .86);
}

.page-contact .prep-check {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--rock);
  cursor: pointer;
}

.page-contact .prep-check input {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin: 0;
  flex: none;
  position: relative;
  background: transparent;
  border: 1px solid var(--line-strong);
  cursor: pointer;
}

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

.page-contact .prep-check input:checked::after {
  content: "✓";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 13px;
  line-height: 1;
  color: var(--ink);
}

.page-contact .prep-foot {
  margin: 28px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--rock);
}

.page-contact .prep-foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 225, 198, .45);
}

.page-contact .prep-foot a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 窄屏 ---------- */
@media (max-width: 560px) {
  .page-contact .channel-value {
    font-size: 17px;
  }

  .page-contact .prep-item {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 12px;
  }

  .page-contact .hours-dl__row {
    flex-direction: column;
    gap: 2px;
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .hours-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-contact .address-inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
    gap: clamp(24px, 4vw, 56px);
  }

  .page-contact .assist-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

@media (min-width: 1120px) {
  .page-contact .channel-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}