.page-contact {
  --contact-rule: rgba(244, 247, 245, .12);
  --contact-tick: rgba(198, 255, 61, .3);
  --contact-soft: rgba(198, 255, 61, .08);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-block: clamp(14px, 2vw, 22px) 0;
}
.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-contact .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin: 0 10px;
  color: var(--contact-tick);
}
.page-contact .breadcrumb-link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.page-contact .breadcrumb-link:hover,
.page-contact .breadcrumb-link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--contact-tick);
}

/* ---------- 首屏框景 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(18px, 3vw, 30px) clamp(30px, 5vw, 56px);
}
.page-contact .contact-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--contact-rule);
  background: var(--ink);
  isolation: isolate;
}
.page-contact .contact-frame::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid var(--contact-tick);
  pointer-events: none;
  z-index: 2;
}
.page-contact .contact-frame-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.75) brightness(.5);
}
.page-contact .contact-frame-overlay {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 12px;
  padding: clamp(20px, 4vw, 52px);
  background: linear-gradient(180deg, rgba(20, 24, 27, .18) 0%, rgba(14, 59, 42, .66) 50%, rgba(20, 24, 27, .97) 100%);
}
.page-contact .contact-frame-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--lime);
}
.page-contact .contact-frame-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 5.6vw, 70px);
  line-height: .98;
  letter-spacing: .01em;
  color: var(--paper);
  max-width: 20ch;
}
.page-contact .contact-frame-lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(14px, 1.5vw, 17px);
  line-height: 1.75;
  color: rgba(244, 247, 245, .82);
}
.page-contact .contact-frame-board {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 44px;
  margin-top: 12px;
  padding-top: 16px;
  border-top: 1px solid rgba(244, 247, 245, .18);
}
.page-contact .contact-frame-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.page-contact .contact-frame-key {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-contact .contact-frame-val {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.6vw, 19px);
  letter-spacing: .01em;
  color: var(--lime);
  word-break: break-all;
}

/* ---------- 主体：固定侧栏 + 连续画布 ---------- */
.page-contact .contact-main {
  padding-block: 0 clamp(56px, 8vw, 96px);
}
.page-contact .contact-main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}
.page-contact .contact-aside {
  display: grid;
  gap: 20px;
  align-content: start;
  min-width: 0;
}
.page-contact .contact-canvas {
  display: grid;
  gap: clamp(40px, 6vw, 76px);
  min-width: 0;
}

/* ---------- 受理时间 ---------- */
.page-contact .hours-list {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.page-contact .hours-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--contact-rule);
  font-size: 14px;
}
.page-contact .hours-day {
  color: var(--muted);
}
.page-contact .hours-time {
  font-family: var(--font-mono);
  color: var(--paper);
  white-space: nowrap;
}
.page-contact .contact-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 联系方式行 ---------- */
.page-contact .contact-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--contact-rule);
}
.page-contact .contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-contact .contact-value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.5vw, 17px);
  letter-spacing: .01em;
  color: var(--paper);
  word-break: break-all;
}
.page-contact .copy-btn {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: 5px 11px;
  border: 1px solid var(--contact-tick);
  background: transparent;
  color: var(--lime);
  cursor: pointer;
  transition: background .18s var(--ease), color .18s var(--ease);
}
.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--contact-soft);
}
.page-contact .copy-btn.is-copied {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

/* ---------- 反馈步骤 ---------- */
.page-contact .steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
}
.page-contact .step {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--contact-rule);
}
.page-contact .step:first-child {
  padding-top: 0;
}
.page-contact .step:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-contact .step-index {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--contact-tick);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
}
.page-contact .step-main {
  min-width: 0;
}
.page-contact .step-title {
  margin: 0 0 4px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--paper);
}
.page-contact .step-body {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}
.page-contact .step-check {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: 5px 10px;
  border: 1px solid var(--contact-rule);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.page-contact .step-check:hover,
.page-contact .step-check:focus-visible {
  border-color: var(--contact-tick);
  color: var(--lime);
}
.page-contact .step-check[data-done] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

/* ---------- 渠道列表 ---------- */
.page-contact .channel-list {
  display: grid;
}
.page-contact .channel {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 18px;
  padding: 26px 0;
  border-top: 1px solid var(--contact-rule);
}
.page-contact .channel:last-child {
  border-bottom: 1px solid var(--contact-rule);
}
.page-contact .channel-no {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 30px;
  line-height: 1;
  color: var(--lime);
  opacity: .85;
}
.page-contact .channel-body {
  min-width: 0;
}
.page-contact .channel-name {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}
.page-contact .channel-desc {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 247, 245, .76);
}
.page-contact .channel-body .link-more {
  display: inline-block;
  margin-top: 12px;
}

/* ---------- 到访与邮寄 ---------- */
.page-contact .visit-block {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--contact-rule);
  border-left: 3px solid var(--green);
  background: linear-gradient(135deg, rgba(31, 111, 74, .18), rgba(42, 49, 54, .42));
}
.page-contact .visit-kv {
  margin: 0;
}
.page-contact .kv-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-contact .kv-value {
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}

/* ---------- 运营地与备案 ---------- */
.page-contact .ops-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}
.page-contact .ops-media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--contact-rule);
}
.page-contact .ops-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.6) brightness(.62);
}
.page-contact .ops-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(198, 255, 61, .08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(198, 255, 61, .08) 1px, transparent 1px);
  background-size: 48px 48px;
}
.page-contact .ops-info {
  min-width: 0;
}
.page-contact .ops-info .kv {
  margin: 0;
}

/* ---------- 商务合作 ---------- */
.page-contact .biz-block {
  display: grid;
  gap: 16px;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--contact-rule);
  background: var(--panel);
}
.page-contact .biz-block .contact-note {
  margin: 0;
}
.page-contact .biz-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 20px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--contact-rule);
}
.page-contact .biz-item:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-contact .biz-label {
  min-width: 84px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-contact .biz-value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.5vw, 16px);
  color: var(--paper);
  word-break: break-all;
}

/* ---------- 窄屏：框景转为纵向堆叠 ---------- */
@media (max-width: 719px) {
  .page-contact .contact-frame {
    display: flex;
    flex-direction: column;
  }
  .page-contact .contact-frame::after {
    display: none;
  }
  .page-contact .contact-frame-img {
    aspect-ratio: 16 / 8;
  }
  .page-contact .contact-frame-overlay {
    position: static;
    inset: auto;
    gap: 10px;
    background: linear-gradient(180deg, rgba(14, 59, 42, .6), rgba(20, 24, 27, .99));
  }
  .page-contact .contact-frame-title {
    max-width: none;
  }
  .page-contact .contact-frame-board {
    gap: 12px 28px;
  }
  .page-contact .channel-no {
    font-size: 24px;
  }
  .page-contact .biz-label {
    min-width: 0;
  }
}

/* ---------- 宽屏：左栏吸顶 + 双栏画布 ---------- */
@media (min-width: 980px) {
  .page-contact .contact-main-grid {
    grid-template-columns: minmax(260px, 312px) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
  .page-contact .contact-aside {
    position: sticky;
    top: 132px;
  }
}

@media (min-width: 760px) {
  .page-contact .ops-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 40px;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .copy-btn,
  .page-contact .step-check,
  .page-contact .breadcrumb-link {
    transition: none;
  }
}