.page-contact {
  --contact-gap: clamp(18px, 3vw, 34px);
  --contact-line-soft: rgba(143, 163, 156, .22);
  --contact-text: rgba(242, 245, 241, .82);
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(48px, 7vw, 96px);
}

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

.page-contact h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.15rem);
  line-height: 1.15;
  letter-spacing: -.01em;
  margin: 10px 0 0;
  color: var(--paper);
}

.page-contact .bvt-kicker {
  color: var(--cyan);
  font-family: var(--font-mono);
  letter-spacing: .14em;
}

.contact-topbar {
  padding-top: clamp(14px, 2.4vw, 26px);
}

/* ---------- 首屏 ---------- */
.contact-hero {
  position: relative;
  padding: clamp(26px, 4.6vw, 54px) 0 clamp(32px, 5vw, 62px);
  background:
    linear-gradient(158deg, rgba(18, 80, 68, .60) 0%, rgba(7, 17, 14, 0) 64%),
    repeating-linear-gradient(90deg, rgba(46, 242, 194, .05) 0 1px, transparent 1px 88px);
  border-bottom: 1px solid var(--contact-line-soft);
}

.contact-hero__grid {
  display: grid;
  gap: clamp(24px, 3.6vw, 42px);
}

.contact-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5.6vw, 3.5rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  margin: 14px 0 0;
  color: var(--paper);
  max-width: 18ch;
}

.contact-hero__lead {
  margin: 18px 0 0;
  max-width: 56ch;
  color: var(--contact-text);
  font-size: clamp(.95rem, 1.6vw, 1.05rem);
  line-height: 1.72;
}

.contact-hero__tags {
  margin-top: 22px;
}

.contact-hero__anchors {
  display: grid;
  gap: 12px;
  align-content: start;
}

.contact-anchor {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 14px;
  padding: 16px 16px 16px 20px;
  background: linear-gradient(120deg, rgba(11, 43, 36, .98), rgba(27, 31, 59, .92));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--panel-shadow);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.contact-anchor::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--cyan);
}

.contact-anchor--phone::before {
  background: var(--amber);
}

.contact-anchor:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--panel-shadow-raised);
}

.contact-anchor__label {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}

.contact-anchor__value {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: clamp(.98rem, 2.5vw, 1.3rem);
  letter-spacing: .02em;
  color: var(--cyan);
  word-break: break-all;
}

.contact-anchor--phone .contact-anchor__value {
  color: var(--amber);
}

.copy-btn {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  min-height: 40px;
  padding: 9px 10px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--paper);
  background: rgba(46, 242, 194, .08);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}

.copy-btn:hover {
  background: var(--cyan);
  color: var(--ink);
  border-color: var(--cyan);
}

.contact-hero__hint {
  margin: 4px 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 反馈分类 ---------- */
.contact-desk {
  padding: clamp(40px, 6vw, 76px) 0;
}

.contact-desk__intro,
.contact-response__intro {
  margin: 12px 0 0;
  max-width: 64ch;
  color: var(--contact-text);
  line-height: 1.72;
}

.contact-desk__layout {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(24px, 4vw, 40px);
}

.contact-desk__cards {
  display: grid;
  gap: 14px;
}

.contact-desk__media {
  display: block;
  width: 100%;
  height: auto;
  max-height: 230px;
  object-fit: cover;
  border: 1px solid var(--contact-line-soft);
  border-radius: var(--radius);
  filter: saturate(.85) contrast(1.05);
}

.cat-card {
  position: relative;
  padding: clamp(16px, 2.4vw, 22px);
  background: var(--deep);
  border: 1px solid var(--contact-line-soft);
  border-left: 2px solid var(--mid);
  border-radius: var(--radius);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.cat-card:hover,
.cat-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  border-left-color: var(--cyan);
  background: #0d342c;
  box-shadow: var(--panel-shadow);
}

.cat-card__top {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.cat-card__no {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--amber);
}

.cat-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.14rem;
  letter-spacing: .01em;
  color: var(--paper);
}

.cat-card__desc {
  margin: 10px 0 0;
  color: var(--contact-text);
  font-size: .94rem;
  line-height: 1.68;
}

.cat-card__detail {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--contact-line-soft);
}

.cat-card__detail summary {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--pale);
}

.cat-card__detail summary::-webkit-details-marker {
  display: none;
}

.cat-card__detail summary::after {
  content: "+";
  color: var(--cyan);
  font-size: 1rem;
  line-height: 1;
}

.cat-card__detail[open] summary::after {
  content: "−";
}

.cat-card__detail ul {
  margin: 10px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  color: var(--contact-text);
  font-size: .9rem;
  line-height: 1.62;
}

.cat-card__detail li::marker {
  color: var(--amber);
}

/* ---------- 侧栏 ---------- */
.contact-desk__side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.side-panel {
  padding: clamp(16px, 2.4vw, 22px);
  background: var(--deep);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--panel-shadow);
}

.side-panel--contact {
  background: linear-gradient(160deg, #0B2B24 0%, #1B1F3B 100%);
}

.side-panel--check {
  background: linear-gradient(160deg, #125044 0%, #0B2B24 100%);
}

.side-panel__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--pale);
}

.contact-rows {
  display: grid;
}

.contact-row {
  display: grid;
  gap: 4px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--contact-line-soft);
}

.contact-row:first-child {
  padding-top: 0;
}

.contact-row__label {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--mist);
}

.contact-row__value {
  font-size: .95rem;
  line-height: 1.55;
  color: var(--paper);
  word-break: break-word;
}

.contact-row__value--mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
  color: var(--cyan);
}

.contact-row__value--amber {
  color: var(--amber);
}

.side-panel__foot {
  margin: 14px 0 0;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--mist);
}

.side-panel__foot a {
  color: var(--pale);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.check-list li {
  position: relative;
  padding-left: 22px;
  font-size: .92rem;
  line-height: 1.6;
  color: rgba(242, 245, 241, .88);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .5em;
  width: 9px;
  height: 9px;
  border: 1px solid var(--amber);
  background: rgba(245, 165, 36, .18);
}

.check-list li:last-child::before {
  background: var(--amber);
}

/* ---------- 渠道与响应 ---------- */
.contact-response {
  padding: clamp(40px, 6vw, 76px) 0;
  border-top: 1px solid var(--contact-line-soft);
  border-bottom: 1px solid var(--contact-line-soft);
  background: linear-gradient(180deg, rgba(27, 31, 59, .55) 0%, rgba(7, 17, 14, 0) 78%);
}

.contact-response__grid {
  display: grid;
  gap: clamp(24px, 3.6vw, 42px);
}

.channel-list {
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.channel-item {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  background: rgba(7, 17, 14, .55);
  border: 1px solid var(--contact-line-soft);
  border-radius: var(--radius);
  transition: border-color .2s ease, background .2s ease;
}

.channel-item:hover {
  border-color: var(--line-strong);
  background: rgba(11, 43, 36, .7);
}

.channel-item__name {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--cyan);
}

.channel-item--amber .channel-item__name {
  color: var(--amber);
}

.channel-item__text {
  font-size: .94rem;
  line-height: 1.68;
  color: var(--contact-text);
}

.contact-response__aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.contact-response__media {
  display: block;
  width: 100%;
  height: auto;
  max-height: 260px;
  object-fit: cover;
  border: 1px solid var(--contact-line-soft);
  border-radius: var(--radius);
  filter: saturate(.9);
}

.contact-band {
  display: grid;
  gap: 12px;
}

.contact-stat {
  padding: 14px 16px;
  background: var(--deep);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.contact-stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.24rem, 3.2vw, 1.62rem);
  letter-spacing: .04em;
  color: var(--cyan);
}

.contact-stat--amber .contact-stat__value {
  color: var(--amber);
}

.contact-stat__label {
  display: block;
  margin-top: 6px;
  font-size: .82rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 合作 ---------- */
.contact-partner {
  padding: clamp(40px, 6vw, 76px) 0 0;
}

.contact-partner__grid {
  display: grid;
  gap: clamp(22px, 3.2vw, 38px);
}

.contact-partner__text {
  margin: 14px 0 0;
  max-width: 60ch;
  color: var(--contact-text);
  line-height: 1.74;
}

.partner-brief {
  padding: clamp(18px, 2.6vw, 26px);
  background: linear-gradient(150deg, rgba(74, 31, 43, .62) 0%, rgba(11, 43, 36, .94) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--panel-shadow-raised);
}

.partner-brief__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--amber);
}

.partner-brief__list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 9px;
  font-size: .93rem;
  line-height: 1.64;
  color: rgba(242, 245, 241, .88);
}

.partner-brief__list li::marker {
  color: var(--cyan);
}

.partner-brief__foot {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--contact-line-soft);
  font-size: .82rem;
  line-height: 1.68;
  color: var(--mist);
}

.contact-next {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3.4vw, 32px);
}

.contact-note {
  margin: 18px 0 0;
  font-size: .84rem;
  line-height: 1.72;
  color: var(--mist);
}

.contact-note a {
  color: var(--pale);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .contact-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-stat:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .contact-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: end;
  }

  .contact-anchor {
    padding: 18px 18px 18px 22px;
  }

  .contact-anchor__value {
    font-size: 1.24rem;
  }

  .contact-response__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
  }

  .contact-partner__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }

  .contact-response__media {
    max-height: 300px;
  }
}

@media (min-width: 1024px) {
  .contact-desk__layout {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .85fr);
    align-items: start;
  }

  .contact-desk__side {
    position: sticky;
    top: 24px;
  }

  .contact-desk__media {
    max-height: 260px;
  }

  .contact-band {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-stat:last-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-anchor,
  .page-contact .cat-card,
  .page-contact .channel-item,
  .page-contact .copy-btn {
    transition: none;
  }

  .page-contact .contact-anchor:hover,
  .page-contact .cat-card:hover,
  .page-contact .cat-card:focus-within {
    transform: none;
  }
}
<<<END>>>