.page-contact {
  --contact-gap: clamp(20px, 3vw, 36px);
  display: block;
  background: var(--bg);
  color: var(--ink);
}

.page-contact [id] {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-contact .channel-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 242, 224, .45);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 44px) 0 clamp(38px, 6vw, 84px);
  background:
    radial-gradient(120% 92% at 88% 4%, rgba(91, 63, 209, .34), transparent 58%),
    radial-gradient(76% 58% at 2% 94%, rgba(61, 242, 224, .10), transparent 62%),
    var(--bg);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--line);
}

.page-contact .contact-hero-grid {
  display: grid;
  gap: var(--contact-gap);
  align-items: start;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 56px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-contact .contact-hero .lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-family: var(--font-body);
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.8;
  color: var(--ink-dim);
}

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

.page-contact .contact-hero-strip {
  margin-top: 30px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-contact .contact-hero-strip .data-item {
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-hero-figure {
  margin: 0;
  overflow: hidden;
  clip-path: var(--cut-lg);
  background: linear-gradient(150deg, var(--panel-deep), var(--bg-band) 58%, rgba(91, 63, 209, .55));
}

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

/* ---------- 双栏主体 ---------- */
.page-contact .contact-body {
  padding: clamp(32px, 5vw, 64px) 0 clamp(40px, 6vw, 80px);
  background: var(--bg);
}

.page-contact .contact-body-grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
  align-items: start;
}

.page-contact .contact-card {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  background: linear-gradient(162deg, rgba(22, 34, 74, .96), rgba(16, 26, 61, .92));
  clip-path: var(--cut-lg);
  box-shadow: inset 0 1px 0 rgba(169, 182, 217, .2);
}

.page-contact .contact-card-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: rgba(123, 228, 149, .1);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--green);
}

.page-contact .contact-card-status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(123, 228, 149, .18);
}

.page-contact .contact-card-title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .contact-card-list {
  margin: 20px 0 0;
  display: grid;
  gap: 0;
}

.page-contact .contact-card-list > div {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-card-list dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--ink-dim);
}

.page-contact .contact-card-list dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
  user-select: all;
}

.page-contact .contact-card-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-strong);
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .contact-block + .contact-block {
  margin-top: clamp(32px, 4vw, 52px);
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-contact .contact-block h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.6vw, 33px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-contact .contact-block p {
  margin: 14px 0 0;
  max-width: 38em;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* 客服通道信息表 */
.page-contact .channel-list {
  margin: 24px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .channel-row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-key {
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--ink-dim);
}

.page-contact .channel-value {
  font-family: var(--font-data);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
  user-select: all;
}

.page-contact .channel-used {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .contact-hint {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--cyan);
  background: rgba(61, 242, 224, .07);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* 合作分段 */
.page-contact .coop-tabs {
  margin-top: 26px;
}

.page-contact .coop-tabs .segmented-list {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-contact .coop-tabs .segmented-btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

.page-contact .coop-tabs .segmented-panel {
  margin-top: 20px;
}

.page-contact .coop-meta {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-contact .coop-meta > div {
  display: grid;
  gap: 5px;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
}

.page-contact .coop-meta dt {
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-contact .coop-meta dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-dim);
}

.page-contact .coop-figure {
  margin: 28px 0 0;
  overflow: hidden;
  clip-path: var(--cut-lg);
  background: var(--panel-deep);
}

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

/* ---------- 斜切色带：来信准备与回复节奏 ---------- */
.page-contact .contact-band {
  position: relative;
  margin-top: clamp(20px, 3vw, 40px);
  padding: clamp(78px, 9vw, 116px) 0 clamp(46px, 6vw, 76px);
  background:
    linear-gradient(180deg, rgba(91, 63, 209, .18), rgba(14, 23, 56, 0) 44%),
    var(--bg-band);
  clip-path: polygon(0 0, 100% 56px, 100% 100%, 0 100%);
}

.page-contact .band-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .contact-band h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.2;
  letter-spacing: -.012em;
  color: var(--ink);
}

.page-contact .prep-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}

.page-contact .prep-num {
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-contact .prep-body strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .prep-body span {
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .band-note {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-contact .rhythm-card {
  padding: clamp(20px, 3vw, 30px);
  background: rgba(22, 34, 74, .72);
  clip-path: var(--cut-lg);
  box-shadow: inset 0 1px 0 rgba(169, 182, 217, .18);
}

.page-contact .rhythm-clock {
  margin: 20px 0 0;
  font-family: var(--font-data);
  font-size: clamp(26px, 4.4vw, 38px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-contact .rhythm-dash {
  padding: 0 .12em;
  color: var(--ink-dim);
}

.page-contact .rhythm-card p {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 常见联系场景 ---------- */
.page-contact .contact-scenes {
  padding: clamp(46px, 7vw, 88px) 0;
  background: var(--bg);
}

.page-contact .contact-scenes h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.6vw, 33px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-contact .scene-list {
  margin: 26px 0 0;
  display: grid;
  gap: 10px;
}

.page-contact .scene {
  background: rgba(22, 34, 74, .55);
  clip-path: var(--cut-sm);
}

.page-contact .scene summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.45;
  color: var(--ink);
}

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

.page-contact .scene-num {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-contact .scene summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  transition: transform .25s var(--ease);
}

.page-contact .scene[open] summary::after {
  transform: rotate(45deg);
}

.page-contact .scene-body {
  padding: 0 18px 18px 18px;
}

.page-contact .scene-body p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 地址与备案 ---------- */
.page-contact .contact-address {
  position: relative;
  padding: clamp(42px, 6vw, 76px) 0;
  background:
    radial-gradient(92% 130% at 10% 0%, rgba(91, 63, 209, .28), transparent 62%),
    var(--panel-deep);
  border-top: 1px solid var(--line);
}

.page-contact .contact-address-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-contact .contact-address h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 3.4vw, 31px);
  line-height: 1.25;
  letter-spacing: -.012em;
  color: var(--ink);
}

.page-contact .address-copy p {
  margin: 14px 0 0;
  max-width: 30em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-contact .address-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-contact .address-list > div {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .address-list dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink-dim);
}

.page-contact .address-list dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
  user-select: all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .contact-hero-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-hero-strip .data-item {
    padding: 12px 14px 12px 0;
  }
}

@media (min-width: 640px) {
  .page-contact .coop-meta > div {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
    padding-left: 16px;
  }

  .page-contact .prep-item {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 16px;
  }
}

@media (min-width: 700px) {
  .page-contact .channel-row {
    grid-template-columns: 108px minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 22px;
    align-items: baseline;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-address-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }
}

@media (min-width: 900px) {
  .page-contact .band-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

@media (min-width: 940px) {
  .page-contact .contact-body-grid {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  }

  .page-contact .contact-card {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-link,
  .page-contact .scene summary::after {
    transition: none;
  }

  .page-contact .scene[open] summary::after {
    transform: none;
  }
}

.page-contact {
  --contact-gap: clamp(20px, 3vw, 36px);
  display: block;
  background: var(--bg);
  color: var(--ink);
}

.page-contact [id] {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-contact .channel-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 242, 224, .45);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 44px) 0 clamp(38px, 6vw, 84px);
  background:
    radial-gradient(120% 92% at 88% 4%, rgba(91, 63, 209, .34), transparent 58%),
    radial-gradient(76% 58% at 2% 94%, rgba(61, 242, 224, .10), transparent 62%),
    var(--bg);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--line);
}

.page-contact .contact-hero-grid {
  display: grid;
  gap: var(--contact-gap);
  align-items: start;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 56px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-contact .contact-hero .lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-family: var(--font-body);
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.8;
  color: var(--ink-dim);
}

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

.page-contact .contact-hero-strip {
  margin-top: 30px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-contact .contact-hero-strip .data-item {
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-hero-figure {
  margin: 0;
  overflow: hidden;
  clip-path: var(--cut-lg);
  background: linear-gradient(150deg, var(--panel-deep), var(--bg-band) 58%, rgba(91, 63, 209, .55));
}

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

/* ---------- 双栏主体 ---------- */
.page-contact .contact-body {
  padding: clamp(32px, 5vw, 64px) 0 clamp(40px, 6vw, 80px);
  background: var(--bg);
}

.page-contact .contact-body-grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
  align-items: start;
}

.page-contact .contact-card {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  background: linear-gradient(162deg, rgba(22, 34, 74, .96), rgba(16, 26, 61, .92));
  clip-path: var(--cut-lg);
  box-shadow: inset 0 1px 0 rgba(169, 182, 217, .2);
}

.page-contact .contact-card-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: rgba(123, 228, 149, .1);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--green);
}

.page-contact .contact-card-status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(123, 228, 149, .18);
}

.page-contact .contact-card-title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .contact-card-list {
  margin: 20px 0 0;
  display: grid;
  gap: 0;
}

.page-contact .contact-card-list > div {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-card-list dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--ink-dim);
}

.page-contact .contact-card-list dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
  user-select: all;
}

.page-contact .contact-card-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-strong);
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .contact-block + .contact-block {
  margin-top: clamp(32px, 4vw, 52px);
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-contact .contact-block h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.6vw, 33px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-contact .contact-block p {
  margin: 14px 0 0;
  max-width: 38em;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* 客服通道信息表 */
.page-contact .channel-list {
  margin: 24px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .channel-row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-key {
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--ink-dim);
}

.page-contact .channel-value {
  font-family: var(--font-data);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
  user-select: all;
}

.page-contact .channel-used {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .contact-hint {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--cyan);
  background: rgba(61, 242, 224, .07);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* 合作分段 */
.page-contact .coop-tabs {
  margin-top: 26px;
}

.page-contact .coop-tabs .segmented-list {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-contact .coop-tabs .segmented-btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

.page-contact .coop-tabs .segmented-panel {
  margin-top: 20px;
}

.page-contact .coop-meta {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-contact .coop-meta > div {
  display: grid;
  gap: 5px;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
}

.page-contact .coop-meta dt {
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-contact .coop-meta dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-dim);
}

.page-contact .coop-figure {
  margin: 28px 0 0;
  overflow: hidden;
  clip-path: var(--cut-lg);
  background: var(--panel-deep);
}

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

/* ---------- 斜切色带：来信准备与回复节奏 ---------- */
.page-contact .contact-band {
  position: relative;
  margin-top: clamp(20px, 3vw, 40px);
  padding: clamp(78px, 9vw, 116px) 0 clamp(46px, 6vw, 76px);
  background:
    linear-gradient(180deg, rgba(91, 63, 209, .18), rgba(14, 23, 56, 0) 44%),
    var(--bg-band);
  clip-path: polygon(0 0, 100% 56px, 100% 100%, 0 100%);
}

.page-contact .band-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .contact-band h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.2;
  letter-spacing: -.012em;
  color: var(--ink);
}

.page-contact .prep-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}

.page-contact .prep-num {
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-contact .prep-body strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .prep-body span {
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .band-note {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-contact .rhythm-card {
  padding: clamp(20px, 3vw, 30px);
  background: rgba(22, 34, 74, .72);
  clip-path: var(--cut-lg);
  box-shadow: inset 0 1px 0 rgba(169, 182, 217, .18);
}

.page-contact .rhythm-clock {
  margin: 20px 0 0;
  font-family: var(--font-data);
  font-size: clamp(26px, 4.4vw, 38px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-contact .rhythm-dash {
  padding: 0 .12em;
  color: var(--ink-dim);
}

.page-contact .rhythm-card p {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 常见联系场景 ---------- */
.page-contact .contact-scenes {
  padding: clamp(46px, 7vw, 88px) 0;
  background: var(--bg);
}

.page-contact .contact-scenes h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.6vw, 33px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-contact .scene-list {
  margin: 26px 0 0;
  display: grid;
  gap: 10px;
}

.page-contact .scene {
  background: rgba(22, 34, 74, .55);
  clip-path: var(--cut-sm);
}

.page-contact .scene summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.45;
  color: var(--ink);
}

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

.page-contact .scene-num {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-contact .scene summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  transition: transform .25s var(--ease);
}

.page-contact .scene[open] summary::after {
  transform: rotate(45deg);
}

.page-contact .scene-body {
  padding: 0 18px 18px 18px;
}

.page-contact .scene-body p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 地址与备案 ---------- */
.page-contact .contact-address {
  position: relative;
  padding: clamp(42px, 6vw, 76px) 0;
  background:
    radial-gradient(92% 130% at 10% 0%, rgba(91, 63, 209, .28), transparent 62%),
    var(--panel-deep);
  border-top: 1px solid var(--line);
}

.page-contact .contact-address-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-contact .contact-address h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 3.4vw, 31px);
  line-height: 1.25;
  letter-spacing: -.012em;
  color: var(--ink);
}

.page-contact .address-copy p {
  margin: 14px 0 0;
  max-width: 30em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-contact .address-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-contact .address-list > div {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .address-list dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink-dim);
}

.page-contact .address-list dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
  user-select: all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .contact-hero-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-hero-strip .data-item {
    padding: 12px 14px 12px 0;
  }
}

@media (min-width: 640px) {
  .page-contact .coop-meta > div {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
    padding-left: 16px;
  }

  .page-contact .prep-item {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 16px;
  }
}

@media (min-width: 700px) {
  .page-contact .channel-row {
    grid-template-columns: 108px minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 22px;
    align-items: baseline;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-address-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }
}

@media (min-width: 900px) {
  .page-contact .band-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

@media (min-width: 940px) {
  .page-contact .contact-body-grid {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  }

  .page-contact .contact-card {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-link,
  .page-contact .scene summary::after {
    transition: none;
  }

  .page-contact .scene[open] summary::after {
    transform: none;
  }
}

.page-contact {
  --contact-gap: clamp(20px, 3vw, 36px);
  display: block;
  background: var(--bg);
  color: var(--ink);
}

.page-contact [id] {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-contact .channel-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 242, 224, .45);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 44px) 0 clamp(38px, 6vw, 84px);
  background:
    radial-gradient(120% 92% at 88% 4%, rgba(91, 63, 209, .34), transparent 58%),
    radial-gradient(76% 58% at 2% 94%, rgba(61, 242, 224, .10), transparent 62%),
    var(--bg);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--line);
}

.page-contact .contact-hero-grid {
  display: grid;
  gap: var(--contact-gap);
  align-items: start;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 56px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-contact .contact-hero .lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-family: var(--font-body);
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.8;
  color: var(--ink-dim);
}

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

.page-contact .contact-hero-strip {
  margin-top: 30px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-contact .contact-hero-strip .data-item {
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-hero-figure {
  margin: 0;
  overflow: hidden;
  clip-path: var(--cut-lg);
  background: linear-gradient(150deg, var(--panel-deep), var(--bg-band) 58%, rgba(91, 63, 209, .55));
}

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

/* ---------- 双栏主体 ---------- */
.page-contact .contact-body {
  padding: clamp(32px, 5vw, 64px) 0 clamp(40px, 6vw, 80px);
  background: var(--bg);
}

.page-contact .contact-body-grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
  align-items: start;
}

.page-contact .contact-card {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  background: linear-gradient(162deg, rgba(22, 34, 74, .96), rgba(16, 26, 61, .92));
  clip-path: var(--cut-lg);
  box-shadow: inset 0 1px 0 rgba(169, 182, 217, .2);
}

.page-contact .contact-card-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: rgba(123, 228, 149, .1);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--green);
}

.page-contact .contact-card-status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(123, 228, 149, .18);
}

.page-contact .contact-card-title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .contact-card-list {
  margin: 20px 0 0;
  display: grid;
  gap: 0;
}

.page-contact .contact-card-list > div {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-card-list dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--ink-dim);
}

.page-contact .contact-card-list dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
  user-select: all;
}

.page-contact .contact-card-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-strong);
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .contact-block + .contact-block {
  margin-top: clamp(32px, 4vw, 52px);
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-contact .contact-block h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.6vw, 33px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-contact .contact-block p {
  margin: 14px 0 0;
  max-width: 38em;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* 客服通道信息表 */
.page-contact .channel-list {
  margin: 24px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .channel-row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-key {
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--ink-dim);
}

.page-contact .channel-value {
  font-family: var(--font-data);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
  user-select: all;
}

.page-contact .channel-used {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .contact-hint {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--cyan);
  background: rgba(61, 242, 224, .07);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* 合作分段 */
.page-contact .coop-tabs {
  margin-top: 26px;
}

.page-contact .coop-tabs .segmented-list {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-contact .coop-tabs .segmented-btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

.page-contact .coop-tabs .segmented-panel {
  margin-top: 20px;
}

.page-contact .coop-meta {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-contact .coop-meta > div {
  display: grid;
  gap: 5px;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
}

.page-contact .coop-meta dt {
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-contact .coop-meta dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-dim);
}

.page-contact .coop-figure {
  margin: 28px 0 0;
  overflow: hidden;
  clip-path: var(--cut-lg);
  background: var(--panel-deep);
}

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

/* ---------- 斜切色带：来信准备与回复节奏 ---------- */
.page-contact .contact-band {
  position: relative;
  margin-top: clamp(20px, 3vw, 40px);
  padding: clamp(78px, 9vw, 116px) 0 clamp(46px, 6vw, 76px);
  background:
    linear-gradient(180deg, rgba(91, 63, 209, .18), rgba(14, 23, 56, 0) 44%),
    var(--bg-band);
  clip-path: polygon(0 0, 100% 56px, 100% 100%, 0 100%);
}

.page-contact .band-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .contact-band h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.2;
  letter-spacing: -.012em;
  color: var(--ink);
}

.page-contact .prep-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}

.page-contact .prep-num {
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-contact .prep-body strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .prep-body span {
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .band-note {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-contact .rhythm-card {
  padding: clamp(20px, 3vw, 30px);
  background: rgba(22, 34, 74, .72);
  clip-path: var(--cut-lg);
  box-shadow: inset 0 1px 0 rgba(169, 182, 217, .18);
}

.page-contact .rhythm-clock {
  margin: 20px 0 0;
  font-family: var(--font-data);
  font-size: clamp(26px, 4.4vw, 38px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-contact .rhythm-dash {
  padding: 0 .12em;
  color: var(--ink-dim);
}

.page-contact .rhythm-card p {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 常见联系场景 ---------- */
.page-contact .contact-scenes {
  padding: clamp(46px, 7vw, 88px) 0;
  background: var(--bg);
}

.page-contact .contact-scenes h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.6vw, 33px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-contact .scene-list {
  margin: 26px 0 0;
  display: grid;
  gap: 10px;
}

.page-contact .scene {
  background: rgba(22, 34, 74, .55);
  clip-path: var(--cut-sm);
}

.page-contact .scene summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.45;
  color: var(--ink);
}

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

.page-contact .scene-num {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-contact .scene summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  transition: transform .25s var(--ease);
}

.page-contact .scene[open] summary::after {
  transform: rotate(45deg);
}

.page-contact .scene-body {
  padding: 0 18px 18px 18px;
}

.page-contact .scene-body p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 地址与备案 ---------- */
.page-contact .contact-address {
  position: relative;
  padding: clamp(42px, 6vw, 76px) 0;
  background:
    radial-gradient(92% 130% at 10% 0%, rgba(91, 63, 209, .28), transparent 62%),
    var(--panel-deep);
  border-top: 1px solid var(--line);
}

.page-contact .contact-address-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-contact .contact-address h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 3.4vw, 31px);
  line-height: 1.25;
  letter-spacing: -.012em;
  color: var(--ink);
}

.page-contact .address-copy p {
  margin: 14px 0 0;
  max-width: 30em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-contact .address-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-contact .address-list > div {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .address-list dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink-dim);
}

.page-contact .address-list dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
  user-select: all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .contact-hero-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-hero-strip .data-item {
    padding: 12px 14px 12px 0;
  }
}

@media (min-width: 640px) {
  .page-contact .coop-meta > div {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
    padding-left: 16px;
  }

  .page-contact .prep-item {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 16px;
  }
}

@media (min-width: 700px) {
  .page-contact .channel-row {
    grid-template-columns: 108px minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 22px;
    align-items: baseline;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-address-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }
}

@media (min-width: 900px) {
  .page-contact .band-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

@media (min-width: 940px) {
  .page-contact .contact-body-grid {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  }

  .page-contact .contact-card {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-link,
  .page-contact .scene summary::after {
    transition: none;
  }

  .page-contact .scene[open] summary::after {
    transform: none;
  }
}