.page-contact {
  --pc-pad: clamp(56px, 8vw, 104px);
  --pc-muted: #4A5273;
  display: block;
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(44px, 6vw, 80px) 0 clamp(52px, 8vw, 96px);
  background:
    radial-gradient(110% 80% at 86% 4%, rgba(255, 122, 26, 0.48), rgba(255, 122, 26, 0) 58%),
    radial-gradient(72% 56% at 4% 98%, rgba(0, 229, 208, 0.16), rgba(0, 229, 208, 0) 64%),
    linear-gradient(168deg, var(--deep-2), var(--deep) 64%);
  color: var(--paper);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(42, 51, 80, 0.6) 1px, transparent 1px);
  background-size: 92px 100%;
  opacity: 0.6;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-contact .contact-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.75rem, 6vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  max-width: 22ch;
  color: var(--paper);
}

.page-contact .contact-hero .lead {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: clamp(0.95rem, 2.2vw, 1.08rem);
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .hero-channels {
  display: grid;
  gap: 1px;
  margin-top: clamp(28px, 4vw, 44px);
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3vw, 32px);
  background: rgba(11, 18, 48, 0.74);
}

.page-contact .channel-card--mail {
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-contact .channel-key {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(0.95rem, 3.4vw, 1.6rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-note {
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .hero-meta {
  margin: 22px 0 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .hero-meta a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 208, 0.55);
}

/* ---------- 章节通用 ---------- */
.page-contact .canvas {
  padding: var(--pc-pad) 0;
  position: relative;
}

.page-contact .chapter-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(24px, 4vw, 40px);
  padding-bottom: 16px;
  border-bottom: var(--line);
}

.page-contact .chapter-num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 4vw, 2.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--sun);
}

.page-contact .chapter-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.25rem, 3.4vw, 1.85rem);
  letter-spacing: -0.01em;
  color: var(--ink);
}

/* ---------- 通用图片容器 ---------- */
.page-contact .media-frame {
  display: flex;
  flex-direction: column;
  margin: 0;
  position: relative;
  overflow: hidden;
  background: var(--deep);
  border: 1px solid var(--grid);
}

.page-contact .media-frame img {
  display: block;
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .media-frame--tall {
  aspect-ratio: 5 / 4;
}

.page-contact .media-frame--wide {
  aspect-ratio: 3 / 2;
}

.page-contact .media-caption {
  flex: 0 0 auto;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.65;
  color: var(--mist);
  background: var(--deep);
  border-top: 1px solid rgba(42, 51, 80, 0.85);
}

/* ---------- 02 联系渠道 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .channel-intro {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--pc-muted);
  max-width: 58ch;
}

.page-contact .addr-block {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(42, 51, 80, 0.28);
}

.page-contact .addr-key {
  display: block;
  margin-bottom: 9px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--sun);
}

.page-contact .addr-value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(0.92rem, 2.4vw, 1.1rem);
  line-height: 1.65;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .channel-tip {
  margin: 26px 0 0;
  padding: 15px 18px;
  background: rgba(255, 179, 0, 0.13);
  border-left: 3px solid var(--gold);
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 03 时间与优先事项 ---------- */
.page-contact .signal-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(42, 51, 80, 0.3);
  border: 1px solid rgba(42, 51, 80, 0.3);
}

.page-contact .signal-item {
  display: flex;
  gap: 16px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--paper);
}

.page-contact .signal-item--hot {
  background: linear-gradient(180deg, rgba(255, 122, 26, 0.16), rgba(255, 122, 26, 0.03));
  box-shadow: inset 0 3px 0 var(--sun);
}

.page-contact .signal-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1;
  color: var(--sun);
}

.page-contact .signal-body h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  color: var(--ink);
}

.page-contact .signal-body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--pc-muted);
}

/* ---------- 04 服务地区与备案 ---------- */
.page-contact .region-sec {
  background: var(--deep);
  color: var(--paper);
  overflow: hidden;
}

.page-contact .region-sec::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -12%;
  width: min(620px, 72%);
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle, rgba(255, 179, 0, 0.24), rgba(255, 179, 0, 0) 62%);
  pointer-events: none;
}

.page-contact .region-sec .chapter-head {
  position: relative;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.page-contact .region-sec .chapter-title {
  color: var(--paper);
}

.page-contact .region-grid {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .data-list {
  margin: 0;
  display: grid;
  gap: 1px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.page-contact .data-row {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: rgba(11, 18, 48, 0.88);
}

.page-contact .data-row dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-contact .data-row dd {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .region-note {
  margin: 18px 0 0;
  font-size: 0.88rem;
  line-height: 1.78;
  color: var(--mist);
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
}

/* ---------- 05 联系前准备 ---------- */
.page-contact .prep-lead {
  margin: 0 0 clamp(22px, 3vw, 32px);
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--pc-muted);
}

.page-contact .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .check-list li {
  display: flex;
  gap: 14px;
  padding: 20px 20px 20px 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.5));
  border: 1px solid rgba(42, 51, 80, 0.22);
  border-left: 3px solid var(--sun);
}

.page-contact .check-num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--sun);
}

.page-contact .check-body h3 {
  margin: 0 0 7px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  color: var(--ink);
}

.page-contact .check-body p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--pc-muted);
}

.page-contact .prep-foot {
  margin: clamp(24px, 3vw, 34px) 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--pc-muted);
}

.page-contact .prep-foot a {
  color: var(--crimson);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(142, 27, 44, 0.45);
}

/* ---------- 06 合作与厂商对接 ---------- */
.page-contact .coop-sec {
  background: var(--ink);
  color: var(--paper);
}

.page-contact .coop-sec .chapter-head {
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.page-contact .coop-sec .chapter-title {
  color: var(--paper);
}

.page-contact .coop-lead {
  margin: 0 0 clamp(24px, 3vw, 34px);
  max-width: 62ch;
  font-size: 0.98rem;
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .coop-grid {
  display: grid;
  gap: 1px;
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.13);
}

.page-contact .coop-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3vw, 32px);
  background: var(--ink);
}

.page-contact .coop-card .mono-tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  padding: 4px 10px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--gold);
}

.page-contact .coop-card .mono-tag--cyan {
  color: var(--cyan);
  border-color: rgba(0, 229, 208, 0.5);
}

.page-contact .coop-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .coop-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .coop-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 4vw, 38px);
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-contact .data-row {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-contact .hero-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .signal-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .check-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 20px;
  }
}

@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
    align-items: start;
  }

  .page-contact .region-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-hero h1 {
    max-width: 24ch;
  }
}