/* ===== 联系入口 / 页面专属样式 ===== */
.page-contact {
  --pc-radius-chip: 10px;
  padding-bottom: clamp(40px, 7vw, 88px);
}

/* ---- 面包屑 ---- */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 22px 0 2px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-contact .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

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

/* ---- 首屏 ---- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(22px, 4.5vw, 52px) 0 clamp(34px, 5.5vw, 68px);
  overflow: hidden;
  isolation: isolate;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -16%;
  width: min(72vw, 620px);
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at 34% 32%, rgba(53, 242, 224, .22), rgba(53, 242, 224, 0) 64%);
  clip-path: polygon(20% 0, 100% 0, 100% 80%, 0 100%);
  pointer-events: none;
  z-index: -1;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 6%;
  width: min(44vw, 360px);
  height: 3px;
  background: linear-gradient(90deg, var(--amber), rgba(255, 179, 60, 0));
  pointer-events: none;
  z-index: -1;
}

.page-contact .hero-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 5vw, 48px);
  align-items: start;
}

.page-contact .hero-copy {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-contact .hero-copy .eyebrow,
.page-contact .hero-copy .lede {
  margin: 0;
}

.page-contact .hero-copy h1 {
  margin: 0;
  max-width: 17ch;
  font-family: var(--font-display);
  font-size: clamp(33px, 6.4vw, 72px);
  font-weight: 300;
  line-height: 1.07;
  letter-spacing: .012em;
  color: var(--white);
}

.page-contact .hero-copy h1 strong {
  font-weight: 700;
  color: var(--cyan);
}

.page-contact .hero-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 48ch;
}

.page-contact .hero-points li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 8px;
  background: rgba(53, 242, 224, .16);
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-contact .hero-panel {
  position: relative;
  display: grid;
  gap: 14px;
  padding: clamp(20px, 3vw, 28px);
  background: linear-gradient(158deg, rgba(14, 19, 26, .97) 10%, rgba(14, 19, 26, .6));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .hero-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 96px;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--amber));
}

.page-contact .panel-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--amber-soft);
}

.page-contact .panel-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

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

.page-contact .panel-key {
  font-size: 14px;
  color: var(--mist);
}

.page-contact .panel-value {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--white);
  text-align: right;
}

/* ---- 章节头 ---- */
.page-contact .section-head {
  display: grid;
  gap: 12px;
  max-width: 64ch;
  margin-bottom: clamp(22px, 3.6vw, 38px);
}

.page-contact .section-head .eyebrow,
.page-contact .section-head .section-title,
.page-contact .section-head .muted {
  margin: 0;
}

/* ---- 流程信息图 ---- */
.page-contact .flow-figure {
  margin: 0 0 clamp(24px, 4vw, 40px);
  border-radius: var(--radius);
  box-shadow: inset 0 0 0 1px rgba(53, 242, 224, .12);
}

.page-contact .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---- 两栏布局 ---- */
.page-contact .switch-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .column-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: .2em;
  color: var(--mist);
}

/* ---- 步骤轨道 ---- */
.page-contact .step-list {
  position: relative;
  padding-left: 32px;
  display: grid;
  gap: 12px;
}

.page-contact .step-list::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--line) 58%, rgba(27, 37, 48, 0) 100%);
}

.page-contact .step-item {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .step-item:hover {
  transform: translateY(-2px);
  border-color: rgba(53, 242, 224, .34);
}

.page-contact .step-item[open] {
  border-color: rgba(53, 242, 224, .45);
  box-shadow: 0 0 0 1px rgba(53, 242, 224, .12), 0 20px 42px -32px rgba(53, 242, 224, .9);
}

.page-contact .step-item::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 21px;
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--amber);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  z-index: 1;
}

.page-contact .step-item[open]::before {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 242, 224, .16);
}

.page-contact .step-item > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
}

.page-contact .step-item > summary::-webkit-details-marker {
  display: none;
}

.page-contact .step-item > summary::marker {
  content: "";
}

.page-contact .step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--amber);
}

.page-contact .step-title {
  font-size: clamp(15px, 2vw, 17px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--white);
}

.page-contact .step-mark {
  position: relative;
  width: 14px;
  height: 14px;
}

.page-contact .step-mark::before,
.page-contact .step-mark::after {
  content: "";
  position: absolute;
  background: var(--mist);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .step-mark::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 1.5px;
}

.page-contact .step-mark::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 1.5px;
}

.page-contact .step-item[open] .step-mark::before {
  background: var(--cyan);
}

.page-contact .step-item[open] .step-mark::after {
  transform: scaleY(0);
}

.page-contact .step-body {
  padding: 0 18px 18px;
  display: grid;
  gap: 10px;
}

.page-contact .step-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .step-body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- 客服通道 ---- */
.page-contact .channel-column {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .channel-figure {
  margin: 0;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius);
}

.page-contact .channel-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .channel-stack {
  display: grid;
  gap: 12px;
}

.page-contact .channel-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 18px 20px 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--cyan);
}

.page-contact .channel-card--mail::before {
  background: var(--cyan-deep);
}

.page-contact .channel-card--phone::before {
  background: var(--amber);
}

.page-contact .channel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(53, 242, 224, .34);
  box-shadow: 0 0 0 1px rgba(53, 242, 224, .14), 0 24px 46px -34px rgba(53, 242, 224, .9);
}

.page-contact .channel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-contact .channel-name {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .channel-fit {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .channel-tip {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(147, 163, 174, .82);
}

.page-contact .copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--pc-radius-chip);
  background: rgba(7, 9, 13, .62);
}

.page-contact .mono-value {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .03em;
  color: var(--white);
  overflow-wrap: anywhere;
}

/* ---- 地址与备案 ---- */
.page-contact .info-block {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 20px;
  padding: clamp(22px, 3.4vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
}

.page-contact .info-block::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(27, 37, 48, .8) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 37, 48, .8) 1px, transparent 1px);
  background-size: 46px 46px;
  opacity: .55;
  pointer-events: none;
}

.page-contact .info-block > * {
  position: relative;
  z-index: 1;
}

.page-contact .address-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-contact .geo-dot {
  width: 11px;
  height: 11px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 6px rgba(255, 179, 60, .16);
}

.page-contact .address-line {
  margin: 0 0 8px;
  font-size: clamp(17px, 2.5vw, 21px);
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .address-row .muted {
  margin: 0;
  max-width: 60ch;
}

.page-contact .filing-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
}

.page-contact .filing-key {
  color: var(--mist);
}

.page-contact .filing-val {
  color: var(--amber-soft);
}

/* ---- 处理节奏 ---- */
.page-contact .beat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 28px);
  margin-top: clamp(26px, 4vw, 42px);
}

.page-contact .beat-item {
  display: grid;
  gap: 8px;
  padding-top: 16px;
  border-top: 2px solid var(--line);
}

.page-contact .beat-item:nth-child(1) {
  border-top-color: var(--cyan);
}

.page-contact .beat-item:nth-child(2) {
  border-top-color: var(--cyan-deep);
}

.page-contact .beat-item:nth-child(3) {
  border-top-color: var(--amber);
}

.page-contact .beat-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-contact .beat-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--white);
}

.page-contact .beat-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---- 联络场景 ---- */
.page-contact .scene-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .scene-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(165deg, rgba(14, 19, 26, .96), rgba(14, 19, 26, .58));
  text-decoration: none;
  color: inherit;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .scene-card:hover,
.page-contact .scene-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(255, 179, 60, .5);
  box-shadow: 0 0 0 1px rgba(255, 179, 60, .16), 0 26px 48px -36px rgba(255, 179, 60, .95);
}

.page-contact .scene-tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--amber-soft);
}

.page-contact .scene-name {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--white);
}

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

.page-contact .scene-go {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--cyan);
  transition: transform var(--dur) var(--ease);
}

.page-contact .scene-card:hover .scene-go,
.page-contact .scene-card:focus-visible .scene-go {
  transform: translateX(4px);
}

/* ---- 响应式 ---- */
@media (min-width: 680px) {
  .page-contact .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-contact .beat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .hero-shell {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (min-width: 1000px) {
  .page-contact .switch-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4vw, 56px);
  }
}

@media (min-width: 1080px) {
  .page-contact .scene-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .page-contact .step-list {
    padding-left: 26px;
  }

  .page-contact .step-item::before {
    left: -23px;
  }

  .page-contact .step-item > summary {
    padding: 14px 15px;
    gap: 10px;
  }

  .page-contact .step-body {
    padding: 0 15px 15px;
  }

  .page-contact .channel-card {
    padding: 16px 16px 16px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .step-item,
  .page-contact .channel-card,
  .page-contact .scene-card,
  .page-contact .scene-go {
    transition: none;
  }

  .page-contact .step-item:hover,
  .page-contact .channel-card:hover,
  .page-contact .scene-card:hover {
    transform: none;
  }
}