.page-contact {
  position: relative;
  overflow-x: clip;
}

/* ---------- 左侧章节轨 ---------- */
.page-contact .contact-rail {
  display: none;
}

@media (min-width: 1460px) {
  .page-contact .contact-rail {
    display: block;
    position: fixed;
    left: 22px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 20;
    width: 40px;
  }
  .page-contact .contact-rail .index-rail-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
  }
  .page-contact .contact-rail .index-rail-list::before {
    content: "";
    position: absolute;
    left: 50%;
    top: -10px;
    bottom: -10px;
    width: 1px;
    background: var(--line-soft);
    transform: translateX(-50%);
  }
  .page-contact .contact-rail .index-rail-link {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 18px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.06em;
    color: var(--grey);
    text-decoration: none;
    background: var(--ink);
    transition: color 180ms ease;
  }
  .page-contact .contact-rail .index-rail-link:hover {
    color: var(--cyan);
  }
  .page-contact .contact-rail .index-rail-link[data-active="true"] {
    color: var(--cyan);
  }
  .page-contact .contact-rail .index-rail-link[data-active="true"]::after {
    content: "";
    position: absolute;
    right: -8px;
    top: 50%;
    width: 16px;
    height: 2px;
    background: var(--cyan);
    transform: translateY(-50%);
  }
  .page-contact .rail-text {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }
}

/* ---------- 通用节奏 ---------- */
.page-contact .section {
  padding: clamp(40px, 6.5vw, 80px) 0;
}

.page-contact .contact-head {
  margin-bottom: clamp(22px, 3.2vw, 38px);
}

.page-contact .section-kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-head .section-title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--warm);
}

.page-contact .section-note {
  margin: 0;
  max-width: 48em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--grey);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(24px, 4vw, 46px);
  padding-bottom: clamp(16px, 2.5vw, 28px);
}

.page-contact .contact-hero .breadcrumb {
  margin-bottom: clamp(22px, 3.5vw, 40px);
}

.page-contact .contact-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}

@media (min-width: 900px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }
}

.page-contact h1 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.022em;
  color: var(--warm);
  transform: skewX(-1.5deg);
  transform-origin: left bottom;
  padding-right: 0.08em;
}

.page-contact .lede {
  margin: 0 0 20px;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.82;
  color: var(--warm);
  opacity: 0.82;
}

.page-contact .contact-hero-copy .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.page-contact .contact-converge-wrap {
  position: relative;
  padding: 6px 0;
}

.page-contact .contact-converge {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.page-contact .converge-line {
  fill: none;
  stroke: var(--stroke);
  stroke-width: 2;
  transition: stroke 420ms ease;
}

.page-contact .converge-halo {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 1;
  opacity: 0;
  transition: opacity 420ms ease;
}

.page-contact .converge-node {
  fill: var(--stroke);
  transition: fill 420ms ease;
}

.page-contact .converge-label {
  fill: var(--grey);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.14em;
  transition: fill 420ms ease;
}

.page-contact .contact-hero[data-visible="true"] .converge-line {
  stroke: var(--cyan);
}

.page-contact .contact-hero[data-visible="true"] .converge-halo {
  opacity: 0.32;
}

.page-contact .contact-hero[data-visible="true"] .converge-node {
  fill: var(--cyan);
}

.page-contact .contact-hero[data-visible="true"] .converge-label {
  fill: var(--cyan);
}

.page-contact .contact-banner {
  position: relative;
  margin: clamp(22px, 3.5vw, 44px) 0 0;
  line-height: 0;
}

.page-contact .contact-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 23, 20, 0.2) 0%, rgba(8, 23, 20, 0.88) 100%);
  pointer-events: none;
}

.page-contact .contact-banner img {
  display: block;
  width: 100%;
  height: clamp(170px, 26vw, 330px);
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(0.68) contrast(1.04);
}

/* ---------- 三张渠道卡 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

@media (min-width: 880px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-contact .channel-card {
  padding: 9px;
  border: 1px solid var(--stroke);
  border-radius: 3px;
  background: var(--glass);
  transition: border-color 200ms ease;
}

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

.page-contact .channel-card-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100%;
  padding: 20px 18px 18px;
  border-radius: 2px;
  background: var(--warm);
  color: var(--ink-text);
}

.page-contact .channel-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-contact .channel-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--stroke);
}

.page-contact .channel-card .tag {
  padding: 3px 9px;
  border: 1px solid currentColor;
  border-radius: 999px;
  background: transparent;
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-contact .channel-card .tag-cyan {
  color: #0E6B58;
}

.page-contact .channel-card .tag-orange {
  color: #A8460D;
}

.page-contact .channel-card .tag-amber {
  color: #8A6412;
}

.page-contact .channel-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.26;
  letter-spacing: -0.012em;
  color: var(--ink-text);
}

.page-contact .channel-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--ink-text);
  opacity: 0.82;
}

.page-contact .channel-list {
  margin: 0;
  padding: 12px 0 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid rgba(43, 43, 40, 0.14);
  font-size: 13px;
  line-height: 1.62;
  color: var(--ink-text);
}

.page-contact .channel-list li {
  position: relative;
  padding-left: 14px;
}

.page-contact .channel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 1px;
  background: var(--stroke);
}

.page-contact .channel-link {
  align-self: flex-start;
  margin-top: auto;
  padding-bottom: 2px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--stroke);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 107, 88, 0.4);
}

.page-contact .channel-link:hover {
  color: var(--ink-text);
  border-bottom-color: var(--ink-text);
}

/* ---------- 服务时段板 ---------- */
.page-contact .timing-board {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.page-contact .timing-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 940px) {
  .page-contact .timing-row {
    grid-template-columns: minmax(190px, 1.1fr) 176px 172px minmax(0, 1.7fr);
    align-items: baseline;
    gap: 20px;
    padding: 20px 0;
  }
}

.page-contact .timing-key {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}

.page-contact .timing-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .timing-name {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.012em;
  color: var(--warm);
}

.page-contact .timing-window {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--amber);
}

.page-contact .timing-owner {
  margin: 0;
  font-size: 13.5px;
  color: var(--grey);
}

.page-contact .timing-expect {
  margin: 0;
  font-size: 14px;
  line-height: 1.64;
  color: var(--warm);
  opacity: 0.78;
}

/* ---------- 合作方向 ---------- */
.page-contact .partner-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .partner-item {
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--stroke);
  border-radius: 2px;
  background: linear-gradient(118deg, rgba(18, 58, 51, 0.58) 0%, rgba(8, 23, 20, 0.12) 72%);
}

.page-contact .partner-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}

.page-contact .partner-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-contact .partner-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.012em;
  color: var(--warm);
}

.page-contact .partner-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

@media (min-width: 780px) {
  .page-contact .partner-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }
}

.page-contact .partner-col-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--grey);
}

.page-contact .partner-col-own .partner-col-label {
  color: var(--cyan);
}

.page-contact .partner-col-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 14px;
  line-height: 1.66;
  color: var(--warm);
  opacity: 0.86;
}

.page-contact .partner-col-list li {
  position: relative;
  padding-left: 15px;
}

.page-contact .partner-col-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 7px;
  height: 1px;
  background: var(--grey);
}

.page-contact .partner-col-own .partner-col-list li::before {
  background: var(--cyan);
}

/* ---------- 准备清单 ---------- */
.page-contact .checklist-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 4vw, 48px);
}

@media (min-width: 880px) {
  .page-contact .checklist-shell {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

.page-contact .checklist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.72;
  color: var(--warm);
}

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

.page-contact .checklist-box {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 6px;
  border: 1px solid var(--stroke);
}

.page-contact .checklist-box::after {
  content: "";
  position: absolute;
  left: 3px;
  top: 3px;
  width: 8px;
  height: 8px;
  background: var(--cyan);
  opacity: 0;
  transition: opacity 200ms ease;
}

.page-contact .checklist-item:hover .checklist-box::after {
  opacity: 1;
}

.page-contact .checklist-text strong {
  font-weight: 700;
  color: var(--cyan);
}

/* ---------- 办公与备案 ---------- */
.page-contact .office-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 46px);
  align-items: center;
}

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

.page-contact .office-facts {
  margin: 22px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .office-fact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 560px) {
  .page-contact .office-fact {
    grid-template-columns: 110px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

.page-contact .office-fact dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--grey);
}

.page-contact .office-fact dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--warm);
  overflow-wrap: anywhere;
}

.page-contact .office-note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--grey);
}

.page-contact .office-note a,
.page-contact .reach-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 240, 196, 0.35);
}

.page-contact .office-figure {
  margin: 0;
}

.page-contact .office-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(0.72) brightness(0.92);
}

.page-contact .office-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--grey);
}

/* ---------- 帮助前置提示 ---------- */
.page-contact .contact-triage {
  padding-top: clamp(8px, 2vw, 20px);
  padding-bottom: clamp(8px, 2vw, 20px);
}

.page-contact .triage-card {
  padding: clamp(22px, 3.6vw, 36px);
  border: 1px solid var(--stroke);
  border-left: 3px solid var(--cyan);
  border-radius: 2px;
  background: linear-gradient(132deg, rgba(43, 240, 196, 0.09) 0%, rgba(18, 58, 51, 0.5) 62%);
}

.page-contact .triage-card .callout-title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(20px, 3vw, 27px);
  font-weight: 700;
  letter-spacing: -0.014em;
  color: var(--warm);
}

.page-contact .triage-text {
  margin: 0 0 20px;
  max-width: 62em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--warm);
  opacity: 0.84;
}

/* ---------- 联系卡片 ---------- */
.page-contact .reach-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 780px) {
  .page-contact .reach-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .reach-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  border-radius: 2px;
  background: var(--charcoal);
}

.page-contact .reach-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--grey);
}

.page-contact .reach-value {
  margin: 0;
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.55;
  color: var(--warm);
  overflow-wrap: anywhere;
}

.page-contact .reach-card .copy-btn {
  margin-top: auto;
  padding: 7px 15px;
  border: 1px solid var(--stroke);
  border-radius: 999px;
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.page-contact .reach-card .copy-btn:hover {
  border-color: var(--cyan);
  background: rgba(43, 240, 196, 0.12);
}

.page-contact .reach-card .copy-btn[data-copied="true"] {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--ink);
}

.page-contact .reach-note {
  margin: 22px 0 0;
  max-width: 62em;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--grey);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .converge-line,
  .page-contact .converge-halo,
  .page-contact .converge-node,
  .page-contact .converge-label,
  .page-contact .channel-card,
  .page-contact .checklist-box::after,
  .page-contact .reach-card .copy-btn {
    transition: none;
  }
}
<<<END>>>