/* ============ 联系页专属 CSS ============ */
.page-contact {
  position: relative;
  overflow: hidden;
  width: 100%;
  background-color: var(--yb-navy);
  background-image:
    linear-gradient(rgba(200, 214, 229, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 214, 229, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
  padding-top: 96px;
  color: var(--yb-cream);
}

.page-contact a {
  transition: color var(--yb-speed) var(--yb-ease), border-color var(--yb-speed) var(--yb-ease), background-color var(--yb-speed) var(--yb-ease);
}

.page-contact a:focus-visible {
  outline: 2px solid var(--yb-green);
  outline-offset: 4px;
}

.page-contact img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-contact-topbar,
.page-contact-hero,
.page-contact-channels,
.page-contact-business,
.page-contact-hours,
.page-contact-index,
.page-contact-flow__inner {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--yb-space-3);
}

/* 顶部状态栏 */
.page-contact-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--yb-space-3);
  padding-bottom: var(--yb-space-3);
  border-bottom: 1px solid var(--yb-border);
}

.page-contact-topbar__signal {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--yb-font-display);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--yb-fog);
}

.page-contact-topbar__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--yb-green);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.6);
}

/* 首屏封面 */
.page-contact-hero {
  position: relative;
  display: grid;
  gap: var(--yb-space-3);
  margin-block: var(--yb-space-5) var(--yb-space-7);
  border-left: 4px solid var(--yb-green);
  padding-left: var(--yb-space-4);
}

.page-contact-hero::after {
  content: "";
  position: absolute;
  right: -24px;
  top: 16px;
  width: 44%;
  height: 1px;
  background: linear-gradient(90deg, var(--yb-green), rgba(57, 255, 20, 0.1));
  transform: skewX(-30deg);
  pointer-events: none;
}

.page-contact-hero__kicker {
  display: flex;
  align-items: center;
  gap: var(--yb-space-3);
}

.page-contact-hero__code {
  font-family: var(--yb-font-display);
  font-size: 18px;
  letter-spacing: 0.12em;
  color: var(--yb-fog);
}

.page-contact-hero h1 {
  margin: 0;
  font-family: var(--yb-font-display);
  font-size: clamp(3rem, 9vw, 6.4rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--yb-cream);
}

.page-contact-hero__lead {
  max-width: 540px;
  margin: 0;
  font-family: var(--yb-font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-fog);
}

.page-contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--yb-space-4);
  margin-top: var(--yb-space-4);
  padding-top: var(--yb-space-4);
  border-top: 1px dashed var(--yb-border);
}

.page-contact-hero__metric span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--yb-fog);
}

.page-contact-hero__metric strong {
  display: block;
  margin-top: 4px;
  font-family: var(--yb-font-display);
  font-size: 2.6rem;
  line-height: 1;
  font-weight: 700;
  color: var(--yb-green);
}

/* 区块标题 */
.page-contact-section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: var(--yb-space-3);
  row-gap: var(--yb-space-1);
  margin-bottom: var(--yb-space-5);
  align-items: center;
}

.page-contact-section-head__no {
  grid-row: span 2;
  padding-right: var(--yb-space-3);
  border-right: 1px solid var(--yb-border);
  font-family: var(--yb-font-display);
  font-size: 2.2rem;
  line-height: 1;
  color: var(--yb-green);
}

.page-contact-section-head h2 {
  align-self: end;
  margin: 0;
  font-family: var(--yb-font-display);
  font-size: 2rem;
  line-height: 1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--yb-cream);
}

.page-contact-section-head p {
  align-self: start;
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--yb-fog);
}

/* 联系渠道 */
.page-contact-channels {
  margin-bottom: var(--yb-space-7);
}

.page-contact-channels__grid {
  display: grid;
  gap: var(--yb-space-4);
}

.page-contact-card {
  --_card-accent: var(--yb-green);
  position: relative;
  overflow: hidden;
  padding: var(--yb-space-4);
  border: 1px solid var(--yb-border);
  border-top: 1px solid rgba(57, 255, 20, 0.35);
  background: var(--yb-glass);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  transition: background-color var(--yb-speed) var(--yb-ease), border-color var(--yb-speed) var(--yb-ease);
}

.page-contact-card--alert {
  --_card-accent: var(--yb-orange);
  border-top-color: rgba(255, 77, 0, 0.4);
}

.page-contact-card::before {
  content: "";
  position: absolute;
  left: var(--yb-space-2);
  right: var(--yb-space-2);
  bottom: 0;
  height: 3px;
  background: var(--_card-accent);
  opacity: 0.8;
}

.page-contact-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(90deg, transparent 0 14px, rgba(255, 255, 255, 0.02) 14px 16px, transparent 16px 32px);
}

.page-contact-card:hover {
  background: rgba(255, 255, 255, 0.12);
}

.page-contact-card__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--yb-space-3);
}

.page-contact-card__index {
  font-family: var(--yb-font-display);
  font-size: 26px;
  letter-spacing: 0.14em;
  color: var(--_card-accent);
}

.page-contact-card__type {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--yb-fog);
}

.page-contact-card h3 {
  margin: var(--yb-space-4) 0 var(--yb-space-2);
  font-family: var(--yb-font-body);
  font-size: 16px;
  font-weight: 700;
  color: var(--yb-cream);
}

.page-contact-card__value {
  display: inline-block;
  margin-bottom: var(--yb-space-3);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--_card-accent);
  font-family: var(--yb-font-display);
  font-size: clamp(1.15rem, 4.5vw, 1.8rem);
  color: var(--yb-cream);
  text-decoration: none;
  user-select: all;
  word-break: break-all;
}

.page-contact-card__value:hover {
  color: var(--_card-accent);
  text-shadow: 0 0 12px rgba(255, 255, 255, 0.2);
}

.page-contact-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--yb-fog);
}

.page-contact-card__action {
  margin-top: var(--yb-space-3);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--_card-accent);
}

/* 地址区块 */
.page-contact-address {
  display: grid;
  gap: var(--yb-space-4);
  margin-top: var(--yb-space-5);
  padding: var(--yb-space-3);
  border: 1px solid var(--yb-border);
  background: var(--yb-glass);
}

.page-contact-address__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 8 / 5;
  overflow: hidden;
  border: 1px solid var(--yb-border);
  background: var(--yb-navy-deep);
}

.page-contact-address__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.85) contrast(1.15);
}

.page-contact-address__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(160deg, rgba(255, 77, 0, 0.18) 0%, transparent 30%, rgba(10, 25, 47, 0.35) 100%);
}

.page-contact-address__pin {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  transform: translate(-50%, -68%);
  color: var(--yb-orange);
  opacity: 0.92;
}

.page-contact-address__info {
  padding: var(--yb-space-2) 0;
}

.page-contact-address__info h3 {
  margin: var(--yb-space-2) 0 var(--yb-space-1);
  font-family: var(--yb-font-display);
  font-size: 2rem;
  line-height: 1;
  letter-spacing: 0.05em;
  color: var(--yb-cream);
}

.page-contact-address__text {
  margin: var(--yb-space-2) 0;
  font-family: var(--yb-font-body);
  font-size: 18px;
  line-height: 1.6;
  color: var(--yb-cream);
}

.page-contact-address__note {
  margin: var(--yb-space-2) 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--yb-fog);
}

/* 反馈流程 */
.page-contact-flow {
  background-color: var(--yb-cream);
  background-image:
    linear-gradient(rgba(16, 24, 32, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 24, 32, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  padding-block: var(--yb-space-6);
}

.page-contact-flow .page-contact-section-head h2 {
  color: var(--yb-ink);
}

.page-contact-flow .page-contact-section-head p {
  color: rgba(16, 24, 32, 0.68);
}

.page-contact-flow .page-contact-section-head__no {
  color: var(--yb-orange);
  border-right-color: rgba(16, 24, 32, 0.2);
}

.page-contact-flow__list {
  display: grid;
  gap: var(--yb-space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact-flow__item {
  position: relative;
  padding: var(--yb-space-4);
  border: 1px solid rgba(16, 24, 32, 0.18);
  background: rgba(255, 255, 255, 0.6);
}

.page-contact-flow__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 4px;
  background: var(--yb-green);
}

.page-contact-flow__index {
  display: block;
  font-family: var(--yb-font-display);
  font-size: 2.4rem;
  line-height: 1;
  letter-spacing: 0.1em;
  color: var(--yb-orange);
}

.page-contact-flow__item h3 {
  margin: var(--yb-space-2) 0 var(--yb-space-1);
  font-family: var(--yb-font-body);
  font-size: 16px;
  font-weight: 700;
  color: var(--yb-ink);
}

.page-contact-flow__item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(16, 24, 32, 0.72);
}

.page-contact-flow__trailer {
  margin-top: var(--yb-space-5);
  padding: var(--yb-space-3) var(--yb-space-4);
  border-left: 4px solid var(--yb-green);
  background: rgba(255, 255, 255, 0.6);
}

.page-contact-flow__trailer p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--yb-ink);
}

/* 商务合作 */
.page-contact-business {
  padding-block: var(--yb-space-6) var(--yb-space-5);
}

.page-contact-business__grid {
  display: grid;
  gap: var(--yb-space-4);
}

.page-contact-business__item {
  position: relative;
  padding: var(--yb-space-4);
  border: 1px solid var(--yb-border);
  border-left: 3px solid var(--yb-green);
  background: var(--yb-glass);
}

.page-contact-business__item--hot {
  border-left-color: var(--yb-orange);
}

.page-contact-business__code {
  font-family: var(--yb-font-display);
  font-size: 1rem;
  letter-spacing: 0.16em;
  color: var(--yb-green);
}

.page-contact-business__item--hot .page-contact-business__code {
  color: var(--yb-orange);
}

.page-contact-business__item h3 {
  margin: var(--yb-space-2) 0 var(--yb-space-2);
  font-family: var(--yb-font-body);
  font-size: 16px;
  font-weight: 700;
  color: var(--yb-cream);
}

.page-contact-business__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--yb-fog);
}

.page-contact-business__trailer {
  margin-top: var(--yb-space-4);
  padding: var(--yb-space-3);
  border: 1px dashed var(--yb-border);
  font-size: 13px;
  line-height: 1.7;
  color: var(--yb-fog);
}

/* 工作时间 */
.page-contact-hours {
  display: grid;
  gap: var(--yb-space-5);
  padding-block: var(--yb-space-6) var(--yb-space-5);
}

.page-contact-hours__list {
  margin: 0;
}

.page-contact-hours__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--yb-space-4);
  padding-block: var(--yb-space-3);
  border-bottom: 1px solid var(--yb-border);
}

.page-contact-hours__row:first-child {
  border-top: 1px solid var(--yb-border);
}

.page-contact-hours__row dt {
  font-size: 14px;
  color: var(--yb-fog);
}

.page-contact-hours__row dd {
  margin: 0;
  font-family: var(--yb-font-display);
  font-size: 1.5rem;
  color: var(--yb-cream);
}

.page-contact-hours__row--key dd {
  color: var(--yb-green);
}

.page-contact-hours__figure {
  margin: 0;
  padding: var(--yb-space-3);
  border: 1px solid var(--yb-border);
  background: var(--yb-glass);
}

.page-contact-hours__figure img {
  width: 100%;
  height: auto;
}

.page-contact-hours__figure figcaption {
  margin-top: var(--yb-space-2);
  font-size: 13px;
  line-height: 1.7;
  color: var(--yb-fog);
}

/* 相关页面索引 */
.page-contact-index {
  padding-block: var(--yb-space-5) var(--yb-space-7);
  border-top: 1px solid var(--yb-border);
}

.page-contact-index h2 {
  margin: 0 0 var(--yb-space-3);
  font-family: var(--yb-font-display);
  font-size: 1.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--yb-fog);
}

.page-contact-index__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--yb-space-3);
}

.page-contact-index__links a {
  position: relative;
  padding: 10px 18px 10px 14px;
  border: 1px solid var(--yb-border);
  color: var(--yb-cream);
  text-decoration: none;
  font-size: 14px;
  transition: border-color var(--yb-speed) var(--yb-ease), color var(--yb-speed) var(--yb-ease), background-color var(--yb-speed) var(--yb-ease);
}

.page-contact-index__links a::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 10px;
  background: var(--yb-green);
  transform: skewX(-30deg);
}

.page-contact-index__links a:hover {
  border-color: var(--yb-green);
  color: var(--yb-green);
}

/* 响应式：平板 */
@media (min-width: 700px) {
  .page-contact-topbar,
  .page-contact-hero,
  .page-contact-channels,
  .page-contact-business,
  .page-contact-hours,
  .page-contact-index,
  .page-contact-flow__inner {
    padding-inline: var(--yb-space-4);
  }

  .page-contact-channels__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--yb-space-4);
  }

  .page-contact-address {
    grid-template-columns: 5fr 4fr;
    align-items: center;
    gap: var(--yb-space-5);
    padding: var(--yb-space-4);
  }

  .page-contact-business__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--yb-space-4);
  }

  .page-contact-hours {
    grid-template-columns: 1fr 0.9fr;
    align-items: center;
    gap: var(--yb-space-5);
  }

  .page-contact-flow__list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 响应式：桌面 */
@media (min-width: 1024px) {
  .page-contact {
    padding-top: 112px;
  }

  .page-contact-hero h1 {
    font-size: clamp(4.8rem, 7vw, 7.2rem);
  }

  .page-contact-hero__lead {
    max-width: 560px;
    font-size: 16px;
  }

  .page-contact-card {
    padding: var(--yb-space-5) var(--yb-space-4);
  }

  .page-contact-flow__list {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact-flow__item:not(:last-child)::after {
    content: "";
    position: absolute;
    right: -14px;
    top: 50%;
    z-index: 2;
    width: 10px;
    height: 10px;
    border-top: 2px solid var(--yb-green);
    border-right: 2px solid var(--yb-green);
    background: var(--yb-cream);
    transform: translateY(-50%) rotate(45deg);
  }

  .page-contact-business__item {
    padding: var(--yb-space-5) var(--yb-space-4);
  }
}

/* 无障碍：减少动态 */
@media (prefers-reduced-motion: reduce) {
  .page-contact,
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    animation: none !important;
    transition: none !important;
  }
}