.page-contact {
  --ct-line: rgba(30, 58, 90, 0.62);
  --ct-line-soft: rgba(30, 58, 90, 0.4);
  --ct-ink: rgba(13, 36, 64, 0.78);
  --ct-ink-soft: rgba(10, 29, 51, 0.58);
  --ct-glow: rgba(22, 224, 212, 0.14);
  display: block;
  padding-bottom: clamp(32px, 5vw, 72px);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 4.8vw, 62px) 0 clamp(22px, 3.4vw, 44px);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -10% -4% auto -4%;
  height: 130%;
  background-image:
    linear-gradient(var(--ct-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--ct-line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.2;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(circle at 80% 12%, #000 0%, transparent 66%);
  mask-image: radial-gradient(circle at 80% 12%, #000 0%, transparent 66%);
}

.page-contact .contact-hero > .container {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(18px, 2.6vw, 32px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--c-steel);
}

.page-contact .breadcrumb a {
  color: var(--c-steel);
  text-decoration: none;
  transition: color 200ms var(--ease-out);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--c-cyan);
}

.page-contact .breadcrumb .sep {
  color: var(--ct-line);
}

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--c-cyan);
}

.page-contact .hero-inner {
  max-width: 940px;
}

.page-contact .contact-h1 {
  margin: 12px 0 clamp(14px, 2vw, 22px);
  font-family: var(--font-head);
  font-size: clamp(27px, 5.1vw, 50px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--c-white);
  max-width: 780px;
}

.page-contact .contact-lede {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  font-size: clamp(15px, 1.55vw, 17.5px);
  line-height: 1.8;
  color: var(--c-mist);
  max-width: 680px;
}

.page-contact .hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ---------- 通道面板 ---------- */

.page-contact .contact-panel {
  padding: clamp(28px, 4.4vw, 56px) 0;
  border-top: 1px solid var(--ct-line-soft);
}

.page-contact .panel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
}

.page-contact .channel-stack {
  display: grid;
  gap: 12px;
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-contact .channel-card {
  position: relative;
  display: grid;
  grid-template-columns: 4px minmax(0, 1fr);
  gap: 14px;
  padding: clamp(16px, 2vw, 22px) clamp(16px, 2vw, 24px);
  background: linear-gradient(180deg, rgba(13, 36, 64, 0.94), rgba(10, 29, 51, 0.94));
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
  transition: border-color 240ms var(--ease-out), transform 240ms var(--ease-out), box-shadow 240ms var(--ease-out);
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: linear-gradient(90deg, var(--c-cyan), rgba(22, 224, 212, 0) 74%);
  opacity: 0.55;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: rgba(22, 224, 212, 0.55);
  transform: translateY(-2px);
  box-shadow: 0 14px 32px -22px rgba(22, 224, 212, 0.8);
}

.page-contact .channel-rail {
  width: 4px;
  align-self: stretch;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--c-cyan) 0%, rgba(22, 224, 212, 0.06) 100%);
}

.page-contact .channel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-contact .channel-name {
  margin: 0;
  font-size: clamp(16.5px, 1.5vw, 19px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-contact .channel-value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(14.5px, 1.45vw, 17px);
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--c-cyan);
  overflow-wrap: anywhere;
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 14.4px;
  line-height: 1.76;
  color: var(--c-steel);
}

.page-contact .panel-right .media-frame {
  margin-bottom: 10px;
}

.page-contact .panel-note {
  margin-top: clamp(16px, 2.2vw, 24px);
  padding: 16px 18px;
  border: 1px solid var(--ct-line);
  border-left: 2px solid var(--c-cyan);
  border-radius: 0 10px 10px 0;
  background: var(--ct-ink-soft);
}

.page-contact .panel-note p {
  margin: 0;
  font-size: 14.4px;
  line-height: 1.78;
  color: var(--c-mist);
}

/* ---------- 媒体容器 ---------- */

.page-contact .media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
  background: var(--c-ink-2, #0A1D33);
}

.page-contact .media-frame--3x2 {
  aspect-ratio: 3 / 2;
}

.page-contact .media-frame--16x9 {
  aspect-ratio: 16 / 9;
}

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

.page-contact .media-caption {
  margin: 10px 0 0;
  font-size: 12.8px;
  line-height: 1.68;
  color: var(--c-steel);
}

/* ---------- 受理范围 ---------- */

.page-contact .contact-scope {
  padding: clamp(28px, 4.4vw, 56px) 0;
  border-top: 1px solid var(--ct-line-soft);
  background: linear-gradient(180deg, rgba(6, 21, 39, 0) 0%, rgba(13, 36, 64, 0.42) 50%, rgba(6, 21, 39, 0) 100%);
}

.page-contact .scope-lede {
  margin: 12px 0 0;
  max-width: 620px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-steel);
}

.page-contact .scope-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(20px, 2.8vw, 32px);
}

.page-contact .scope-item {
  position: relative;
  padding: clamp(18px, 2.2vw, 26px);
  padding-left: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
  background: var(--ct-ink-soft);
  overflow: hidden;
  transition: border-color 240ms var(--ease-out), background 240ms var(--ease-out);
}

.page-contact .scope-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 2px;
  background: var(--scope-accent, var(--c-cyan));
}

.page-contact .scope-item:hover {
  border-color: rgba(22, 224, 212, 0.42);
  background: rgba(13, 36, 64, 0.7);
}

.page-contact .scope-item--login {
  --scope-accent: var(--c-cyan);
}

.page-contact .scope-item--member {
  --scope-accent: var(--c-green);
}

.page-contact .scope-item--search {
  --scope-accent: var(--c-orange);
}

.page-contact .scope-index {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--scope-accent, var(--c-cyan));
}

.page-contact .scope-name {
  margin: 0 0 10px;
  font-size: clamp(16.5px, 1.5vw, 20px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-contact .scope-item p {
  margin: 0;
  font-size: 14.4px;
  line-height: 1.78;
  color: var(--c-steel);
}

/* ---------- 材料清单 + 回复节奏 ---------- */

.page-contact .contact-prep {
  padding: clamp(28px, 4.4vw, 56px) 0;
  border-top: 1px solid var(--ct-line-soft);
}

.page-contact .prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3.6vw, 46px);
}

.page-contact .check-list {
  display: grid;
  gap: 10px;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .check-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  border: 1px solid var(--ct-line);
  border-radius: 10px;
  background: var(--ct-ink-soft);
  transition: border-color 220ms var(--ease-out), background 220ms var(--ease-out);
}

.page-contact .check-item:hover {
  border-color: rgba(22, 224, 212, 0.46);
  background: rgba(13, 36, 64, 0.72);
}

.page-contact .check-index {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid rgba(22, 224, 212, 0.42);
  border-radius: 8px;
  background: rgba(22, 224, 212, 0.08);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-cyan);
}

.page-contact .check-name {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-mist);
}

.page-contact .check-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-steel);
}

.page-contact .rhythm-list {
  display: grid;
  gap: 12px;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: rhythm;
}

.page-contact .rhythm-item {
  display: grid;
  grid-template-columns: 6px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--ct-line);
  border-radius: 10px;
  background: rgba(10, 29, 51, 0.55);
}

.page-contact .rhythm-bar {
  width: 6px;
  align-self: stretch;
  border-radius: 999px;
}

.page-contact .rhythm-bar--green {
  background: linear-gradient(180deg, var(--c-green) 0%, rgba(125, 240, 106, 0.06) 100%);
}

.page-contact .rhythm-bar--cyan {
  background: linear-gradient(180deg, var(--c-cyan) 0%, rgba(22, 224, 212, 0.06) 100%);
}

.page-contact .rhythm-bar--orange {
  background: linear-gradient(180deg, var(--c-orange) 0%, rgba(255, 138, 60, 0.06) 100%);
}

.page-contact .rhythm-name {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-mist);
}

.page-contact .rhythm-time {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--c-cyan);
}

.page-contact .rhythm-desc {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.72;
  color: var(--c-steel);
}

.page-contact .rhythm-foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--ct-line);
  font-size: 13.4px;
  line-height: 1.74;
  color: var(--c-steel);
}

/* ---------- 合作与反馈 ---------- */

.page-contact .contact-partners {
  padding: clamp(28px, 4.4vw, 56px) 0;
  border-top: 1px solid var(--ct-line-soft);
}

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(20px, 2.8vw, 32px);
}

.page-contact .partner-card {
  position: relative;
  padding: clamp(20px, 2.4vw, 28px) clamp(18px, 2.2vw, 24px);
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
  background: var(--ct-ink-soft);
  transition: border-color 240ms var(--ease-out), transform 240ms var(--ease-out);
}

.page-contact .partner-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(18px, 2.2vw, 24px);
  right: clamp(18px, 2.2vw, 24px);
  height: 2px;
  background: linear-gradient(90deg, var(--c-cyan), rgba(90, 99, 255, 0.7) 58%, rgba(90, 99, 255, 0) 100%);
}

.page-contact .partner-card:hover {
  border-color: rgba(22, 224, 212, 0.5);
  transform: translateY(-2px);
}

.page-contact .partner-name {
  margin: 0 0 10px;
  font-size: clamp(16px, 1.4vw, 17.5px);
  font-weight: 700;
  color: var(--c-white);
}

.page-contact .partner-card p {
  margin: 0;
  font-size: 14.2px;
  line-height: 1.78;
  color: var(--c-steel);
}

.page-contact .partner-card a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 224, 212, 0.34);
  transition: border-color 200ms var(--ease-out), color 200ms var(--ease-out);
}

.page-contact .partner-card a:hover,
.page-contact .partner-card a:focus-visible {
  color: var(--c-white);
  border-bottom-color: var(--c-cyan);
}

/* ---------- 备案与服务地区 ---------- */

.page-contact .contact-filing {
  padding: clamp(28px, 4.4vw, 56px) 0 clamp(8px, 1.6vw, 20px);
  border-top: 1px solid var(--ct-line-soft);
}

.page-contact .filing-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 38px);
  padding: clamp(20px, 2.8vw, 34px);
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(13, 36, 64, 0.86), rgba(6, 21, 39, 0.88));
}

.page-contact .filing-list {
  margin: clamp(16px, 2vw, 22px) 0 0;
}

.page-contact .filing-row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--ct-line);
}

.page-contact .filing-row:last-child {
  border-bottom: 0;
}

.page-contact .filing-row dt {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-steel);
}

.page-contact .filing-row dd {
  margin: 0;
  font-size: 14.6px;
  line-height: 1.62;
  color: var(--c-mist);
  overflow-wrap: anywhere;
}

.page-contact .filing-note {
  margin: clamp(16px, 2vw, 22px) 0 0;
  font-size: 13.4px;
  line-height: 1.74;
  color: var(--c-steel);
}

.page-contact .filing-note a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 224, 212, 0.32);
}

.page-contact .filing-note a:hover,
.page-contact .filing-note a:focus-visible {
  border-bottom-color: var(--c-cyan);
  color: var(--c-white);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .scope-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .panel-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-contact .filing-band {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
  }
}

@media (max-width: 480px) {
  .page-contact .filing-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-contact .check-item {
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 11px;
    padding: 12px 13px;
  }

  .page-contact .check-index {
    width: 26px;
    height: 26px;
    font-size: 11px;
  }

  .page-contact .channel-card {
    padding: 15px 15px 15px 13px;
    gap: 12px;
  }
}