.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(2.2rem, 5vw, 3.6rem) clamp(1.6rem, 3vw, 2.4rem);
  overflow: hidden;
}

.page-contact .hero-track {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: auto;
  max-height: 140px;
  color: var(--c-orange);
  opacity: 0.45;
  pointer-events: none;
}

.page-contact .hero-kicker {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 0.9rem;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--c-mist);
}

.page-contact .hero-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--c-orange);
}

.page-contact .contact-hero h1 {
  max-width: 18ch;
  margin-block: 0 0.9rem;
}

.page-contact .contact-hero .lead {
  max-width: 40ch;
  color: var(--c-ink);
  opacity: 0.86;
}

/* ---------- 分屏主体 ---------- */
.page-contact .contact-main {
  display: grid;
  gap: var(--gap);
  padding-bottom: clamp(2.4rem, 5vw, 3.6rem);
}

.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 3vw, 2.3rem);
  border-radius: var(--r-xl);
  background: linear-gradient(168deg, var(--c-deep) 0%, var(--c-night) 100%);
  color: var(--c-white);
  box-shadow: var(--shadow-2);
}

.page-contact .card-flags {
  position: absolute;
  inset-inline: 0;
  top: 0;
  display: flex;
  height: 5px;
}

.page-contact .card-flags i {
  flex: 1;
}

.page-contact .card-flags i:nth-child(1) { background: var(--c-blue); }
.page-contact .card-flags i:nth-child(2) { background: var(--c-white); }
.page-contact .card-flags i:nth-child(3) { background: var(--c-red); }
.page-contact .card-flags i:nth-child(4) { background: var(--c-green); }
.page-contact .card-flags i:nth-child(5) { background: var(--c-yellow); }

.page-contact .card-title {
  margin: 0.7rem 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-yellow);
  letter-spacing: 0.01em;
}

.page-contact .card-note {
  margin: 0 0 1rem;
  font-size: 0.86rem;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.68);
}

.page-contact .mail-line {
  display: block;
  width: 100%;
  padding: 0.95rem 1.05rem;
  text-align: left;
  background: rgba(245, 247, 250, 0.07);
  border: 1px solid rgba(245, 247, 250, 0.2);
  border-radius: var(--r-lg);
  color: inherit;
  cursor: pointer;
  transition: background 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .mail-line:hover,
.page-contact .mail-line:focus-visible {
  background: rgba(245, 247, 250, 0.14);
  border-color: var(--c-orange);
}

.page-contact .mail-value {
  display: block;
  font-size: clamp(1rem, 2.1vw, 1.35rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--c-white);
  word-break: break-all;
}

.page-contact .mail-line .copy-hint {
  display: inline-block;
  margin-top: 0.45rem;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--c-orange);
}

.page-contact .card-facts {
  display: grid;
  gap: 0.6rem;
  margin: 1.3rem 0 0;
}

.page-contact .card-facts > div {
  padding-top: 0.7rem;
  border-top: 1px solid rgba(245, 247, 250, 0.16);
}

.page-contact .card-facts dt {
  margin-bottom: 0.25rem;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: rgba(245, 247, 250, 0.58);
}

.page-contact .card-facts dd {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.6;
}

.page-contact .phone-line {
  padding: 0;
  border: 0;
  background: none;
  color: var(--c-yellow);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border-bottom: 1px dashed rgba(232, 194, 74, 0.55);
  transition: color 0.2s var(--ease);
}

.page-contact .phone-line:hover,
.page-contact .phone-line:focus-visible {
  color: var(--c-orange);
}

.page-contact .card-addr {
  color: rgba(245, 247, 250, 0.9);
}

.page-contact .card-art {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 1.4rem;
  border-radius: var(--r-lg);
  object-fit: cover;
  opacity: 0.92;
}

/* ---------- 右侧来信面板 ---------- */
.page-contact .mail-panel {
  padding: clamp(1.4rem, 2.6vw, 2.1rem);
  border-radius: var(--r-xl);
  background: var(--c-paper);
  box-shadow: var(--shadow-1);
}

.page-contact .panel-lead {
  margin: 0.6rem 0 1.1rem;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--c-ink);
}

.page-contact .panel-art {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 1.2rem;
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-contact .checklist {
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-contact .checklist li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--c-ink);
}

.page-contact .checklist li strong {
  font-weight: 700;
}

.page-contact .check-dot {
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--c-orange);
  box-shadow: 0 0 0 3px rgba(242, 140, 40, 0.18);
}

.page-contact .checklist li:nth-child(1) .check-dot { background: var(--c-blue); box-shadow: 0 0 0 3px rgba(46, 125, 178, 0.18); }
.page-contact .checklist li:nth-child(2) .check-dot { background: var(--c-green); box-shadow: 0 0 0 3px rgba(31, 143, 107, 0.18); }
.page-contact .checklist li:nth-child(3) .check-dot { background: var(--c-yellow); box-shadow: 0 0 0 3px rgba(232, 194, 74, 0.22); }
.page-contact .checklist li:nth-child(4) .check-dot { background: var(--c-red); box-shadow: 0 0 0 3px rgba(198, 71, 58, 0.16); }

.page-contact .template {
  padding: 1rem 1.05rem 1.15rem;
  border: 1px dashed rgba(11, 60, 93, 0.28);
  border-radius: var(--r-lg);
  background: var(--c-white);
}

.page-contact .template-label {
  margin: 0 0 0.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--c-mist);
}

.page-contact .template-body {
  margin: 0 0 1rem;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.9;
  letter-spacing: 0.02em;
  color: var(--c-ink);
  white-space: pre-wrap;
  word-break: break-word;
  background: none;
  border: 0;
}

/* ---------- 渠道分工 ---------- */
.page-contact .channels {
  padding-bottom: clamp(2.2rem, 4vw, 3.2rem);
}

.page-contact .channel-grid {
  display: grid;
  gap: var(--gap);
  margin-top: 1.2rem;
}

.page-contact .channel {
  padding: 1.25rem 1.2rem 1.35rem;
  border-top: 3px solid transparent;
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-contact .channel:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
}

.page-contact .channel:nth-child(1) { border-top-color: var(--c-blue); }
.page-contact .channel:nth-child(2) { border-top-color: var(--c-green); }
.page-contact .channel:nth-child(3) { border-top-color: var(--c-orange); }

.page-contact .channel-tag {
  margin: 0 0 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--c-mist);
}

.page-contact .channel h3 {
  margin: 0 0 0.55rem;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--c-deep);
}

.page-contact .channel p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c-ink);
}

/* ---------- 回复时段 ---------- */
.page-contact .reply {
  position: relative;
  overflow: hidden;
  margin-bottom: clamp(2.2rem, 4vw, 3.2rem);
  padding: clamp(1.5rem, 3vw, 2.4rem);
  border-radius: var(--r-xl);
  background: var(--c-night);
  color: var(--c-white);
}

.page-contact .reply::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -120px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 1px solid rgba(46, 125, 178, 0.35);
  pointer-events: none;
}

.page-contact .reply .section-no {
  color: var(--c-yellow);
}

.page-contact .reply .section-title {
  color: var(--c-white);
}

.page-contact .reply-grid {
  display: grid;
  gap: 1.2rem;
  margin-top: 1rem;
}

.page-contact .reply-big {
  margin: 0 0 0.8rem;
  font-size: clamp(1.15rem, 2.6vw, 1.65rem);
  font-weight: 700;
  line-height: 1.55;
  color: var(--c-white);
}

.page-contact .reply-big .mono {
  color: var(--c-yellow);
}

.page-contact .reply-main p:last-child {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(245, 247, 250, 0.78);
}

.page-contact .reply-note {
  margin: 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--c-orange);
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(245, 247, 250, 0.72);
}

.page-contact .reply-note .mono {
  color: var(--c-white);
}

/* ---------- 合作与纠错 ---------- */
.page-contact .coop {
  padding-bottom: clamp(2.2rem, 4vw, 3.2rem);
}

.page-contact .coop-inner {
  display: grid;
  gap: 1.4rem;
  margin-top: 1.1rem;
}

.page-contact .coop-text p {
  margin: 0 0 0.9rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--c-ink);
}

.page-contact .coop-side {
  display: grid;
  gap: 0.8rem;
  align-content: start;
}

.page-contact .coop-step {
  display: flex;
  gap: 0.8rem;
  padding: 0.9rem 1rem;
  border-radius: var(--r-md);
  background: var(--c-paper);
  border-left: 3px solid var(--c-deep);
}

.page-contact .step-no {
  flex: 0 0 auto;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-orange);
  line-height: 1.6;
}

.page-contact .coop-step p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--c-ink);
}

.page-contact .coop-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.3rem;
}

/* ---------- 站点信息 ---------- */
.page-contact .siteinfo {
  padding-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.page-contact .info-grid {
  display: grid;
  gap: 0.9rem 1.4rem;
  margin: 1.1rem 0 1.3rem;
}

.page-contact .info-grid > div {
  padding-left: 0.9rem;
  border-left: 2px solid rgba(11, 60, 93, 0.18);
}

.page-contact .info-grid dt {
  margin-bottom: 0.25rem;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--c-mist);
}

.page-contact .info-grid dd {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--c-ink);
  word-break: break-word;
}

.page-contact .info-note {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-contact .info-note a {
  color: var(--c-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--c-orange);
}

.page-contact .info-note a:hover {
  color: var(--c-orange);
}

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

@media (min-width: 760px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .reply-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
    gap: 2rem;
  }

  .page-contact .coop-inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 2rem;
    align-items: start;
  }

  .page-contact .coop-text p {
    font-size: 1rem;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-main {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
    gap: clamp(1.6rem, 3vw, 2.6rem);
  }

  .page-contact .contact-hero h1 {
    max-width: 22ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .mail-line,
  .page-contact .phone-line {
    transition: none;
  }

  .page-contact .channel:hover {
    transform: none;
  }
}
<<<END>>>