.page-contact {
  --rail-width: 312px;
  --desk-gap: clamp(20px, 3.4vw, 46px);
  --card-pad: clamp(16px, 3vw, 22px);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  margin-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(24px, 5vw, 52px) clamp(22px, 4vw, 40px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -20%;
  width: min(620px, 84vw);
  height: clamp(250px, 42vw, 400px);
  background: linear-gradient(118deg, rgba(61, 240, 196, 0.13), rgba(255, 122, 47, 0.1) 62%, transparent 80%);
  clip-path: polygon(16% 0, 100% 10%, 86% 100%, 0 82%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero .container {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero h1 {
  margin: 10px 0 16px;
  max-width: 13em;
  font-family: var(--font-display);
  font-size: clamp(32px, 6.6vw, 56px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--chalk);
}

.page-contact .contact-lede {
  max-width: 62ch;
  color: var(--text-soft);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 渠道工作台 ---------- */
.page-contact .contact-desk {
  display: grid;
  gap: var(--desk-gap);
}

.page-contact .contact-rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .channel-card {
  position: relative;
  overflow: hidden;
  padding: var(--card-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  opacity: 0.55;
}

.page-contact .channel-card--mail::after {
  background: linear-gradient(90deg, var(--cyan), transparent 78%);
}

.page-contact .channel-card--phone {
  background: var(--ink-800);
  border-color: var(--line-strong);
}

.page-contact .channel-card--phone::after {
  background: linear-gradient(90deg, var(--orange), transparent 78%);
}

@media (hover: hover) {
  .page-contact .channel-card:hover {
    transform: translateY(-2px);
    border-color: var(--line-strong);
  }
}

.page-contact .channel-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  color: var(--cyan);
  background: rgba(61, 240, 196, 0.1);
  border: 1px solid rgba(61, 240, 196, 0.26);
}

.page-contact .channel-card--phone .channel-icon {
  color: var(--orange);
  background: rgba(255, 122, 47, 0.1);
  border-color: rgba(255, 122, 47, 0.28);
}

.page-contact .channel-label {
  margin: 14px 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gray);
}

.page-contact .channel-value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(14px, 3.6vw, 17px);
  line-height: 1.45;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .channel-card--phone .channel-value {
  color: var(--orange);
}

.page-contact .channel-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-mid);
}

/* 响应时段刻度 */
.page-contact .response-meter {
  margin-top: 6px;
  padding: 18px 16px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: rgba(15, 42, 35, 0.62);
}

.page-contact .meter-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gray);
}

.page-contact .meter-track {
  position: relative;
  height: 30px;
  border-radius: 6px;
  background-color: rgba(124, 139, 135, 0.1);
  background-image: repeating-linear-gradient(90deg, rgba(124, 139, 135, 0.3) 0 1px, transparent 1px 4.1667%);
}

.page-contact .meter-fill {
  position: absolute;
  left: 37.5%;
  width: 37.5%;
  top: 0;
  bottom: 0;
  border-radius: 6px;
  background: linear-gradient(90deg, rgba(61, 240, 196, 0.34), rgba(61, 240, 196, 0.14));
  border-left: 2px solid var(--cyan);
  border-right: 2px solid var(--cyan);
  outline: none;
  transition: box-shadow 0.18s ease;
}

.page-contact .meter-fill:hover,
.page-contact .meter-fill:focus-visible {
  box-shadow: 0 0 0 3px rgba(61, 240, 196, 0.22);
}

.page-contact .meter-fill::after {
  content: attr(data-hint);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 12px);
  transform: translate(-50%, 6px);
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: var(--glass-strong);
  color: var(--chalk);
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.page-contact .meter-fill:hover::after,
.page-contact .meter-fill:focus-visible::after {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 560px) {
  .page-contact .meter-fill::after {
    display: none;
  }
}

.page-contact .meter-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray);
}

.page-contact .meter-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-mid);
}

/* ---------- 右栏正文 ---------- */
.page-contact .contact-main {
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-width: 0;
}

.page-contact .contact-main-copy h2 {
  margin: 0 0 14px;
}

.page-contact .contact-main-copy p {
  margin: 0 0 14px;
  max-width: 62ch;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-contact .contact-inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 4px;
}

.page-contact .link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 240, 196, 0.35);
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-contact .link-arrow::after {
  content: "→";
}

.page-contact .link-arrow:hover,
.page-contact .link-arrow:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

.page-contact figure {
  margin: 0;
}

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

/* ---------- 横向切片：反馈格式 ---------- */
.page-contact .slice-frame {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: linear-gradient(158deg, rgba(15, 42, 35, 0.92), rgba(8, 24, 20, 0.68));
}

.page-contact .slice-frame::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), transparent 74%);
}

.page-contact .slice-head {
  max-width: 62ch;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-contact .slice-head .section-title {
  margin: 8px 0 10px;
}

.page-contact .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-contact .tab {
  appearance: none;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-mid);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-contact .tab:hover {
  color: var(--chalk);
  border-color: var(--cyan);
}

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

.page-contact .tab[aria-selected="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
  font-weight: 600;
}

.page-contact .tab-panel {
  padding: var(--card-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: rgba(8, 24, 20, 0.55);
}

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

.page-contact .panel-title {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--chalk);
}

.page-contact .tab-panel p {
  margin: 0 0 14px;
  max-width: 62ch;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-contact .sample-line {
  margin: 0;
  padding: 10px 14px;
  border-left: 2px solid var(--cyan);
  border-radius: 0 8px 8px 0;
  background: rgba(61, 240, 196, 0.07);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

/* ---------- 处理节奏 ---------- */
.page-contact .section-head {
  max-width: 66ch;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-contact .section-head .section-title {
  margin: 8px 0 10px;
}

.page-contact .rhythm-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .rhythm-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  transition: transform 0.18s ease;
}

@media (hover: hover) {
  .page-contact .rhythm-item:hover {
    transform: translateX(4px);
  }
}

.page-contact .rhythm-index {
  min-width: 30px;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .rhythm-body h3 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 600;
  color: var(--chalk);
}

.page-contact .rhythm-body p {
  margin: 0;
  max-width: 64ch;
  line-height: 1.85;
  color: var(--text-soft);
}

/* ---------- 协作折叠项 ---------- */
.page-contact .collab-list {
  display: grid;
  gap: 12px;
}

.page-contact .collab-item {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--glass);
}

.page-contact .collab-item > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px var(--card-pad);
  list-style: none;
  cursor: pointer;
  font-size: 17px;
  font-weight: 600;
  color: var(--chalk);
  transition: background-color 0.18s ease;
}

.page-contact .collab-item > summary::-webkit-details-marker {
  display: none;
}

.page-contact .collab-item > summary:hover {
  background: rgba(61, 240, 196, 0.06);
}

.page-contact .collab-item > summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}

.page-contact .collab-sign {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
}

.page-contact .collab-sign::before,
.page-contact .collab-sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-contact .collab-sign::before {
  left: 0;
  right: 0;
  top: 7px;
  height: 2px;
}

.page-contact .collab-sign::after {
  top: 0;
  bottom: 0;
  left: 7px;
  width: 2px;
}

.page-contact .collab-item[open] .collab-sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-contact .collab-body {
  padding: 16px var(--card-pad) 22px;
  border-top: 1px solid var(--line);
}

.page-contact .collab-body p {
  margin: 0 0 12px;
  max-width: 64ch;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-contact .collab-ask {
  margin: 0 0 12px;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-mid);
}

.page-contact .collab-ask li {
  margin-bottom: 6px;
}

/* ---------- 地区与地址 ---------- */
.page-contact .region-block {
  border-top: 1px solid var(--line);
}

.page-contact .region-grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-contact .region-copy .section-title {
  margin: 8px 0 14px;
}

.page-contact .region-copy p {
  margin: 0 0 16px;
  max-width: 58ch;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-contact .region-copy .link-arrow {
  font-size: 13px;
}

.page-contact .region-address {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin-top: 22px;
  padding: 14px 16px;
  font-style: normal;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  background: rgba(15, 42, 35, 0.55);
}

.page-contact .addr-label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gray);
}

.page-contact .addr-text {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--chalk);
  overflow-wrap: anywhere;
}

.page-contact .region-media {
  border-radius: var(--radius-card);
}

/* ---------- 桌面分栏 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-desk {
    grid-template-columns: minmax(264px, var(--rail-width)) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 860px) {
  .page-contact .region-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
  }
}
<<<END>>>