.page-contact {
  --pc-cut: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  --pc-cut-sm: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  --pc-line: rgba(20, 64, 107, 0.9);
  padding-top: clamp(20px, 4vw, 40px);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-contact .breadcrumb__item {
  display: inline-flex;
  align-items: center;
}

.page-contact .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--track);
}

.page-contact .breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .breadcrumb__link:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-contact .breadcrumb__current {
  color: var(--text);
}

/* ---------- 首屏声明 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-bottom: clamp(24px, 4vw, 40px);
  border-bottom: 1px solid var(--track);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  background: linear-gradient(90deg,
    var(--lime) 0%,
    var(--lime) 16%,
    var(--amber) 16%,
    var(--amber) 21%,
    var(--track) 21%,
    var(--track) 100%);
}

.page-contact h1 {
  margin: 0 0 18px;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.012em;
  color: var(--text);
}

.page-contact .lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13.5px;
  color: var(--muted);
}

.page-contact .hero-facts li {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding-left: 15px;
}

.page-contact .hero-facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 7px;
  height: 3px;
  background: var(--lime);
  transform: skewX(-20deg);
}

.page-contact .hero-facts .mono {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.14em;
  letter-spacing: 0.02em;
  color: var(--text);
}

/* ---------- 控制台双栏 ---------- */
.page-contact .console {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  padding-top: clamp(28px, 5vw, 52px);
}

@media (min-width: 1120px) {
  .page-contact .console {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: clamp(24px, 3vw, 36px);
  }
}

.page-contact .console-block {
  min-width: 0;
  padding: clamp(18px, 2.6vw, 28px);
  background: linear-gradient(158deg, var(--panel) 0%, var(--panel-deep) 100%);
  border: 1px solid var(--track);
  clip-path: var(--pc-cut);
}

.page-contact .console-block--channels {
  border-top: 3px solid var(--lime);
}

.page-contact .console-block--brief {
  border-top: 3px solid var(--signal, var(--track));
}

.page-contact .block-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--track);
}

.page-contact .block-head h2 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 22px);
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-contact .status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--lime);
  background: rgba(182, 255, 59, 0.08);
  border: 1px solid rgba(182, 255, 59, 0.35);
  clip-path: var(--pc-cut-sm);
  white-space: nowrap;
}

.page-contact .status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  animation: pc-pulse 2s ease-in-out infinite;
}

@keyframes pc-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

/* ---------- 通道列表 ---------- */
.page-contact .channel-list {
  display: grid;
  gap: 1px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  background: var(--track);
  border: 1px solid var(--track);
}

.page-contact .channel {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  padding: 16px;
  background: var(--panel-deep);
  transition: background var(--ease);
}

.page-contact .channel:hover {
  background: #102d4a;
}

.page-contact .channel__icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  color: var(--lime);
  background: rgba(182, 255, 59, 0.07);
  border: 1px solid rgba(182, 255, 59, 0.3);
  clip-path: var(--pc-cut-sm);
}

.page-contact .channel__icon svg {
  display: block;
  width: 17px;
  height: 17px;
}

.page-contact .channel__body {
  min-width: 0;
}

.page-contact .channel__label {
  margin: 0 0 5px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .channel__value {
  margin: 0 0 7px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(15px, 2.4vw, 19px);
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .channel__value--sm {
  font-weight: 500;
  font-size: clamp(14px, 1.9vw, 16px);
  line-height: 1.62;
}

.page-contact .channel__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .contact-media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--panel-deep);
}

.page-contact .contact-media .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(6, 21, 39, 0) 42%, rgba(6, 21, 39, 0.78) 100%);
}

.page-contact .contact-media .media__caption {
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
}

/* ---------- 反馈类型 ---------- */
.page-contact .brief-intro {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .tabs {
  min-width: 0;
}

.page-contact .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-contact .tabs__tab {
  appearance: none;
  padding: 9px 15px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 13.5px;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--track);
  cursor: pointer;
  clip-path: var(--pc-cut-sm);
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.page-contact .tabs__tab:hover {
  color: var(--text);
  border-color: var(--lime);
}

.page-contact .tabs__tab[aria-selected="true"] {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
}

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

.page-contact .tabs__panel {
  animation: pc-fade 120ms ease-out;
}

.page-contact .tabs__panel[hidden] {
  display: none;
}

.page-contact .tabs__panel:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

@keyframes pc-fade {
  from { opacity: 0; transform: translateX(6px); }
  to { opacity: 1; transform: translateX(0); }
}

.page-contact .brief-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: pc-brief;
}

.page-contact .brief-list li {
  position: relative;
  counter-increment: pc-brief;
  padding: 14px 16px 14px 54px;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--text);
  background: rgba(20, 64, 107, 0.34);
  border-left: 3px solid var(--lime);
}

.page-contact .brief-list li::before {
  content: counter(pc-brief, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--lime);
}

.page-contact .brief-tip {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--track);
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--muted);
}

/* ---------- 响应节奏 ---------- */
.page-contact .lane-block {
  margin-top: clamp(40px, 6vw, 76px);
}

.page-contact .lane-head {
  max-width: 62ch;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--track);
}

.page-contact .eyebrow {
  display: block;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-contact .lane-head h2,
.page-contact .coop-head h2,
.page-contact .selfcheck-head h2,
.page-contact .outro-copy h2 {
  margin: 0 0 12px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.26;
  letter-spacing: -0.005em;
  color: var(--text);
}

.page-contact .lane-sub,
.page-contact .coop-sub,
.page-contact .selfcheck-sub {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .lane-metrics {
  display: grid;
  gap: 1px;
  margin: clamp(22px, 3vw, 32px) 0;
  background: var(--track);
  border: 1px solid var(--track);
}

@media (min-width: 768px) {
  .page-contact .lane-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .metric {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0 8px;
  padding: 20px 18px;
  background: var(--panel-deep);
}

.page-contact .metric__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--lime);
}

.page-contact .metric__unit {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
}

.page-contact .metric__label {
  flex: 1 1 100%;
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-contact .lane-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .lane-item {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--track);
  clip-path: var(--pc-cut-sm);
  transition: border-color var(--ease);
}

.page-contact .lane-item:hover {
  border-color: var(--lime);
}

.page-contact .lane-item--hot {
  background: linear-gradient(120deg, rgba(255, 122, 41, 0.1) 0%, var(--panel) 58%);
  border-color: rgba(255, 122, 41, 0.4);
}

.page-contact .lane-item__idx {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--track);
  padding-top: 2px;
}

.page-contact .lane-item--hot .lane-item__idx {
  color: var(--amber);
}

.page-contact .lane-item__body {
  min-width: 0;
}

.page-contact .lane-item__body h3 {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-contact .lane-item__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--muted);
}

.page-contact .lane-item .tag {
  grid-column: 2;
  justify-self: start;
  margin-top: 12px;
}

/* ---------- 合作 ---------- */
.page-contact .coop-block {
  margin-top: clamp(40px, 6vw, 76px);
}

.page-contact .coop-head {
  max-width: 64ch;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--track);
}

.page-contact .coop-grid {
  display: grid;
  gap: 14px;
  margin: clamp(22px, 3vw, 32px) 0 0;
}

@media (min-width: 768px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .coop-card {
  display: flex;
  flex-direction: column;
  padding: 22px 20px 24px;
  background: var(--panel-deep);
  border: 1px solid var(--track);
  clip-path: var(--pc-cut);
  transition: border-color var(--ease), transform var(--ease);
}

.page-contact .coop-card:hover {
  border-color: var(--lime);
  transform: translateY(-2px);
}

.page-contact .coop-card__idx {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .coop-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 18px;
  color: var(--text);
}

.page-contact .coop-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .coop-brief {
  margin-top: 16px;
  padding: clamp(20px, 3vw, 28px);
  background: rgba(20, 64, 107, 0.28);
  border-left: 3px solid var(--lime);
}

.page-contact .coop-brief h3 {
  margin: 0 0 14px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--text);
}

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

@media (min-width: 768px) {
  .page-contact .coop-brief__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 24px;
  }
}

.page-contact .coop-brief__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .coop-brief__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 8px;
  height: 2px;
  background: var(--lime);
  transform: skewX(-22deg);
}

.page-contact .coop-brief__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--muted);
}

.page-contact .coop-brief__note .mono {
  font-family: var(--font-mono);
  color: var(--text);
  overflow-wrap: anywhere;
}

/* ---------- 自助排查 ---------- */
.page-contact .selfcheck {
  margin-top: clamp(40px, 6vw, 76px);
}

.page-contact .selfcheck-head {
  max-width: 60ch;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--track);
}

.page-contact .check-list {
  display: grid;
  gap: 1px;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--track);
  border: 1px solid var(--track);
}

@media (min-width: 768px) {
  .page-contact .check-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .check-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px;
  background: var(--panel-deep);
}

.page-contact .check-item__link {
  align-self: flex-start;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 16px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 2px solid var(--track);
  padding-bottom: 3px;
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .check-item__link:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-contact .check-item__link:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-contact .check-item__desc {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .selfcheck-more {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .selfcheck-more a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--track);
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .selfcheck-more a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 收尾 ---------- */
.page-contact .contact-outro {
  display: grid;
  gap: 0;
  margin-top: clamp(40px, 6vw, 76px);
  background: var(--panel-deep);
  border-top: 3px solid var(--lime);
  border-bottom: 1px solid var(--track);
  clip-path: var(--pc-cut);
}

@media (min-width: 900px) {
  .page-contact .contact-outro {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: stretch;
  }
}

.page-contact .contact-outro__media {
  position: relative;
  margin: 0;
  order: 2;
  aspect-ratio: 2 / 1;
  overflow: hidden;
}

@media (min-width: 900px) {
  .page-contact .contact-outro__media {
    order: 0;
    aspect-ratio: auto;
    height: 100%;
    min-height: 100%;
  }
}

.page-contact .contact-outro__media .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-outro__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(140deg, rgba(6, 21, 39, 0.1) 0%, rgba(6, 21, 39, 0.62) 100%);
}

.page-contact .outro-copy {
  padding: clamp(24px, 4vw, 40px);
}

.page-contact .outro-copy p {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.page-contact .outro-copy p .mono {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text);
}

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

.page-contact .outro-key li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .outro-key li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 2px;
  background: var(--lime);
  transform: skewX(-22deg);
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 479px) {
  .page-contact .channel {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 12px;
    padding: 15px 14px;
  }

  .page-contact .channel__icon {
    width: 30px;
    height: 30px;
  }

  .page-contact .channel__icon svg {
    width: 15px;
    height: 15px;
  }

  .page-contact .lane-item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 12px;
    padding: 16px 14px;
  }

  .page-contact .brief-list li {
    padding: 13px 14px 13px 48px;
  }

  .page-contact .brief-list li::before {
    left: 14px;
  }

  .page-contact .tabs__tab {
    flex: 1 1 auto;
    text-align: center;
    padding: 10px 10px;
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .status-dot {
    animation: none;
  }

  .page-contact .tabs__panel {
    animation: none;
  }

  .page-contact .coop-card:hover {
    transform: none;
  }
}

.page-contact {
  --signal: currentColor;
}