.page-contact {
  --pc-card: #14313D;
  --pc-card-2: #0B3B3A;
  --pc-hover-line: rgba(34, 224, 214, 0.55);
  --pc-soft-line: rgba(159, 195, 200, 0.18);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(22px, 4vw, 44px) 0 clamp(38px, 6vw, 76px);
  background:
    radial-gradient(115% 85% at 88% 2%, rgba(34, 224, 214, 0.16), transparent 58%),
    radial-gradient(85% 70% at 2% 100%, rgba(255, 106, 43, 0.12), transparent 62%),
    linear-gradient(158deg, #061726 0%, #0E2F4A 56%, #0B3B3A 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan) 22%, var(--orange) 68%, transparent);
  opacity: .5;
}

/* 面包屑 */
.page-contact .crumbs {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .crumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .crumbs-item + .crumbs-item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(159, 195, 200, 0.4);
}

.page-contact .crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}

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

/* 首屏分屏 */
.page-contact .hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: center;
}

@media (min-width: 880px) {
  .page-contact .hero-split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(34px, 5vw, 68px);
  }
}

.page-contact .hero-copy {
  min-width: 0;
}

.page-contact .hero-title {
  margin: 14px 0 18px;
  font-size: clamp(2rem, 5.6vw, 3.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .hero-title br {
  display: none;
}

@media (min-width: 640px) {
  .page-contact .hero-title br {
    display: inline;
  }
}

.page-contact .hero-lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(0.98rem, 1.6vw, 1.06rem);
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-contact .hero-media {
  border-radius: var(--r-l);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  margin: 0;
  background: var(--ink-deep);
}

.page-contact .hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .9;
}

/* ---------- 通用章节 ---------- */
.page-contact .section {
  padding: clamp(44px, 7vw, 88px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .section-head {
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-contact .section-head h2 {
  margin: 12px 0 14px;
  font-size: clamp(1.4rem, 3vw, 2.05rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .section-head .lead {
  margin: 0;
  color: var(--mist);
}

/* ---------- 渠道 ---------- */
.page-contact .channels-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

@media (min-width: 940px) {
  .page-contact .channels-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(28px, 4vw, 52px);
  }
}

.page-contact .channel-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .channel-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 18px;
  padding: clamp(20px, 2.6vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background:
    linear-gradient(142deg, rgba(20, 49, 61, 0.94), rgba(11, 59, 58, 0.66));
  transition: border-color .35s var(--ease), transform .35s var(--ease), box-shadow .35s var(--ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--pc-hover-line);
  transform: translateY(-2px);
  box-shadow: 0 20px 38px -28px rgba(34, 224, 214, 0.7);
}

.page-contact .channel-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(6, 23, 38, 0.6);
  color: var(--cyan);
}

.page-contact .channel-body {
  flex: 1 1 190px;
  min-width: 0;
}

.page-contact .channel-label {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.98rem, 2vw, 1.18rem);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--white);
  word-break: break-word;
}

.page-contact .copy-btn {
  flex: 0 0 auto;
  padding: 7px 14px;
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(34, 224, 214, 0.35);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}

.page-contact .copy-btn:hover {
  background: rgba(34, 224, 214, 0.14);
  border-color: var(--cyan);
}

.page-contact .channel-use {
  flex: 1 0 100%;
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--pc-soft-line);
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .channel-notes {
  padding: clamp(22px, 3vw, 32px);
  border-radius: var(--r-l);
  background: var(--paper);
  border-left: 4px solid var(--orange);
  color: var(--ink);
}

.page-contact .notes-title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #8a5a1f;
}

.page-contact .channel-notes p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: #14313D;
}

.page-contact .notes-line {
  padding-top: 14px;
  border-top: 1px solid var(--line-paper);
  color: #38505c !important;
  font-size: 14px !important;
}

.page-contact .channel-notes .btn {
  margin-top: 6px;
}

/* ---------- 反馈路径 ---------- */
.page-contact .path-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
  margin-bottom: clamp(34px, 5vw, 60px);
}

@media (min-width: 960px) {
  .page-contact .path-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }
}

.page-contact .path-steps {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

@media (min-width: 760px) {
  .page-contact .path-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
    padding-top: 22px;
  }

  .page-contact .path-steps::before {
    content: "";
    position: absolute;
    top: 7px;
    left: 6px;
    right: 12%;
    height: 1px;
    background: linear-gradient(90deg, var(--cyan) 0%, rgba(34, 224, 214, 0.35) 55%, rgba(34, 224, 214, 0) 100%);
  }
}

.page-contact .path-step {
  position: relative;
  min-width: 0;
  padding-left: 26px;
}

@media (min-width: 760px) {
  .page-contact .path-step {
    padding-left: 0;
  }
}

.page-contact .step-dot {
  position: absolute;
  top: 3px;
  left: 0;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  background: var(--ink);
  box-shadow: 0 0 0 4px rgba(34, 224, 214, 0.1);
}

@media (min-width: 760px) {
  .page-contact .step-dot {
    top: -22px;
    left: -6px;
  }
}

.page-contact .step-idx {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-contact .path-step h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--white);
}

.page-contact .path-step p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .path-media {
  margin: 0;
  border-radius: var(--r-l);
  border: 1px solid var(--line);
  background: var(--ink-deep);
  overflow: hidden;
}

.page-contact .path-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: .92;
}

.page-contact .path-media .media-cap {
  padding: 14px 18px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

/* ---------- 填写要点 ---------- */
.page-contact .tip-block {
  padding-top: clamp(24px, 3.4vw, 40px);
  border-top: 1px solid var(--line);
}

.page-contact .tip-heading {
  margin: 0 0 20px;
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  font-weight: 800;
  color: var(--white);
}

.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.page-contact .filter-btn {
  padding: 8px 16px;
  font-family: inherit;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
  background: rgba(6, 23, 38, 0.5);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  transition: color .3s var(--ease), border-color .3s var(--ease), background-color .3s var(--ease);
}

.page-contact .filter-btn:hover {
  color: var(--white);
  border-color: rgba(34, 224, 214, 0.45);
}

.page-contact .filter-btn[aria-pressed="true"] {
  color: var(--ink);
  background: var(--orange);
  border-color: var(--orange);
}

.page-contact .tip-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

@media (min-width: 720px) {
  .page-contact .tip-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-contact .tip-card {
  display: flex;
  flex-direction: column;
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: linear-gradient(160deg, rgba(20, 49, 61, 0.7), rgba(6, 23, 38, 0.9));
  transition: border-color .3s var(--ease), opacity .3s var(--ease), transform .3s var(--ease);
}

.page-contact .tip-card[data-hidden="true"] {
  display: none;
}

.page-contact .tip-card:hover {
  border-color: var(--pc-hover-line);
  transform: translateY(-2px);
}

.page-contact .tip-tag {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-contact .tip-card h4 {
  margin: 0 0 14px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.page-contact .tip-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .tip-points li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--mist);
}

.page-contact .tip-points li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  opacity: .8;
}

/* ---------- 回复节奏（暖纸分区） ---------- */
.page-contact .reply-rhythm.on-paper {
  background: linear-gradient(158deg, #F2EBDF 0%, #e9e0d0 100%);
  border-bottom: 1px solid var(--line-paper);
}

.page-contact .reply-rhythm .eyebrow {
  color: #8a5a1f;
}

.page-contact .reply-rhythm .section-head h2 {
  color: var(--ink);
}

.page-contact .reply-rhythm .section-head .lead {
  color: #3c5460;
}

.page-contact .rhythm-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
  border-top: 1px solid var(--line-paper);
}

.page-contact .rhythm-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-paper);
}

@media (min-width: 760px) {
  .page-contact .rhythm-row {
    grid-template-columns: minmax(0, 2fr) minmax(0, 3fr) minmax(0, 5fr);
    gap: 24px;
    align-items: baseline;
  }
}

.page-contact .rhythm-key {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #7a5a35;
}

.page-contact .rhythm-val {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2vw, 1.16rem);
  font-weight: 600;
  color: #0E2F4A;
}

.page-contact .rhythm-note {
  font-size: 14px;
  line-height: 1.7;
  color: #3c5460;
}

.page-contact .rhythm-foot {
  margin: 26px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--orange);
  font-size: 14px;
  line-height: 1.75;
  color: #3c5460;
}

/* ---------- 合作 ---------- */
.page-contact .partners-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

@media (min-width: 940px) {
  .page-contact .partners-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }
}

.page-contact .partners-main h2 {
  margin: 12px 0 20px;
  font-size: clamp(1.35rem, 2.8vw, 1.95rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--white);
}

.page-contact .partners-main p {
  margin: 0 0 18px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .partners-side {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-contact .plaque {
  padding: clamp(20px, 2.6vw, 26px) clamp(20px, 2.6vw, 26px) clamp(20px, 2.6vw, 26px) clamp(22px, 2.8vw, 30px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  border-radius: var(--r-m);
  background: rgba(6, 23, 38, 0.62);
}

.page-contact .plaque-title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .plaque-body {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 11px;
}

.page-contact .plaque-body li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--mist);
}

.page-contact .plaque-body li::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 0;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .partners-side .btn {
  justify-self: start;
}

/* ---------- 站点信息 ---------- */
.page-contact .site-meta {
  padding-top: clamp(34px, 5vw, 56px);
  padding-bottom: clamp(40px, 6vw, 72px);
  border-bottom: none;
  background: linear-gradient(180deg, rgba(6, 23, 38, 0) 0%, rgba(4, 18, 28, 0.65) 100%);
}

.page-contact .meta-title {
  margin: 0 0 22px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
  color: rgba(159, 195, 200, 0.7);
}

.page-contact .meta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px 32px;
  margin: 0;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 700px) {
  .page-contact .meta-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 40px;
  }
}

.page-contact .meta-item {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: baseline;
  min-width: 0;
}

.page-contact .meta-item dt {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(159, 195, 200, 0.62);
}

.page-contact .meta-item dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(232, 241, 244, 0.82);
}

.page-contact .meta-foot {
  margin: 20px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(159, 195, 200, 0.78);
}

.page-contact .meta-foot a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(159, 195, 200, 0.35);
  transition: color .3s var(--ease), border-color .3s var(--ease);
}

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

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 480px) {
  .page-contact .channel-card {
    gap: 12px 14px;
    padding: 18px;
  }

  .page-contact .channel-icon {
    width: 40px;
    height: 40px;
  }

  .page-contact .copy-btn {
    padding: 6px 12px;
  }

  .page-contact .hero-chips .tag {
    font-size: 11px;
  }
}
<<<END>>>