.page-contact {
  --clip-corner: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  background: var(--color-obsidian);
  color: var(--color-off-white);
}

/* ===== 面包屑 ===== */
.page-contact .contact-breadcrumb {
  padding-top: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  font: 500 13px var(--font-mono);
  color: var(--color-muted-gray);
}
.page-contact .contact-breadcrumb a {
  color: var(--color-muted-gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s, color .2s;
}
.page-contact .contact-breadcrumb a:hover,
.page-contact .contact-breadcrumb a:focus-visible {
  color: var(--color-gold-bright);
  border-bottom-color: var(--color-gold);
}
.page-contact .contact-breadcrumb__sep {
  color: var(--color-gold);
}

/* ===== 首屏 Hero ===== */
.page-contact .contact-hero {
  padding-top: 36px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}
.page-contact .contact-hero__content {
  position: relative;
}
.page-contact .contact-hero .section-label {
  margin-bottom: 14px;
}
.page-contact .contact-hero h1 {
  font-size: 34px;
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.page-contact .contact-hero__lead {
  color: var(--color-muted-gray);
  line-height: 1.9;
  max-width: 48ch;
  margin: 0 0 22px;
}
.page-contact .contact-hero__content::after {
  content: "";
  display: block;
  width: 72px;
  height: 3px;
  margin-top: 4px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-electric-blue));
  clip-path: polygon(0 0, 100% 0, 78% 100%, 0 100%);
}
.page-contact .contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 18px;
}
.page-contact .contact-hero__worktime {
  font: 13px var(--font-mono);
  color: var(--color-muted-gray);
  background: var(--color-carbon);
  border: 1px solid var(--color-graphite);
  padding: 6px 12px;
  clip-path: var(--clip-corner);
}
.page-contact .contact-hero__figure {
  margin: 0;
  position: relative;
  background: var(--color-carbon);
  border: 1px solid var(--color-graphite);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}
.page-contact .contact-hero__figure::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 70%, rgba(212, 168, 67, 0.14) 100%);
  pointer-events: none;
  z-index: 1;
}
.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .contact-hero__figure figcaption {
  font: 12px var(--font-mono);
  color: var(--color-muted-gray);
  padding: 10px 14px;
  border-top: 1px solid var(--color-graphite);
  position: relative;
  z-index: 2;
}

/* ===== 客服通道 ===== */
.page-contact .contact-channel {
  padding-top: 56px;
  scroll-margin-top: 88px;
}
.page-contact .contact-channel__head {
  margin-bottom: 28px;
}
.page-contact .contact-channel__head h2,
.page-contact .contact-hours__text h2,
.page-contact .contact-boundary__main h2,
.page-contact .contact-legal h2,
.page-contact .contact-handoff h2 {
  font-size: 28px;
  font-weight: 900;
  line-height: 1.25;
  margin: 6px 0 10px;
  letter-spacing: -0.01em;
}
.page-contact .contact-channel__head p:last-child {
  color: var(--color-muted-gray);
  line-height: 1.8;
  max-width: 62ch;
  margin: 0;
}

.page-contact .contact-channel__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .contact-card {
  position: relative;
  background: var(--color-carbon);
  border: 1px solid var(--color-graphite);
  clip-path: var(--clip-corner);
  padding: 30px 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color .2s, background-color .2s;
}
.page-contact .contact-card:hover {
  border-color: #3a3a4c;
  background: #191923;
}
.page-contact .contact-card__icon {
  width: 38px;
  height: 38px;
  color: var(--color-electric-blue);
  margin-bottom: 4px;
}
.page-contact .contact-card--phone .contact-card__icon {
  color: var(--color-gold);
}
.page-contact .contact-card--address .contact-card__icon {
  color: var(--color-electric-blue);
}
.page-contact .contact-card__label {
  font: 600 13px var(--font-mono);
  color: var(--color-muted-gray);
  letter-spacing: 0.08em;
}
.page-contact .contact-card__value {
  font: 700 18px var(--font-mono);
  color: var(--color-off-white);
  text-decoration: none;
  word-break: break-all;
  line-height: 1.4;
}
.page-contact .contact-card address.contact-card__value {
  font-style: normal;
}
.page-contact .contact-card__value:hover,
.page-contact .contact-card__value:focus-visible {
  color: var(--color-gold-bright);
}
.page-contact .contact-card__note {
  color: var(--color-muted-gray);
  font-size: 14px;
  line-height: 1.7;
  margin: 4px 0 0;
}
.page-contact .contact-card__hint {
  color: #6e6e7a;
  font-size: 13px;
  line-height: 1.6;
  margin: 2px 0 0;
}

/* 邮箱下划线滑动 */
.page-contact .contact-card--email .contact-card__value {
  background-image: linear-gradient(var(--color-gold-bright), var(--color-gold-bright));
  background-repeat: no-repeat;
  background-size: 0% 2px;
  background-position: left 100%;
  transition: background-size .3s cubic-bezier(.2, .6, .2, 1), color .2s;
}
.page-contact .contact-card--email .contact-card__value:hover,
.page-contact .contact-card--email .contact-card__value:focus-visible {
  background-size: 100% 2px;
}

/* 电话提示徽章 */
.page-contact .contact-card__tip {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  font: 12px var(--font-mono);
  color: var(--color-obsidian);
  background: var(--color-gold);
  padding: 4px 10px;
  clip-path: var(--clip-corner);
  pointer-events: none;
}
@media (hover: hover) {
  .page-contact .contact-card__tip {
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity .2s step-end, transform .2s steps(2, end);
  }
  .page-contact .contact-card--phone:hover .contact-card__tip,
  .page-contact .contact-card--phone:focus-within .contact-card__tip {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 电话信号波纹 */
.page-contact .contact-card--phone::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(212, 168, 67, 0);
  clip-path: var(--clip-corner);
  pointer-events: none;
}
@media (hover: hover) {
  .page-contact .contact-card--phone:hover::after {
    animation: contact-ripple .9s steps(4, end) infinite;
  }
}
@keyframes contact-ripple {
  0% {
    inset: 14px;
    border-color: rgba(212, 168, 67, 0.7);
  }
  100% {
    inset: -6px;
    border-color: rgba(212, 168, 67, 0);
  }
}

/* 地址卡片 */
.page-contact .contact-card--address {
  background: #101018;
  border-color: var(--color-tech-blue);
}

/* ===== 工作时间轴 ===== */
.page-contact .contact-hours {
  padding-top: 56px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-contact .contact-hours__text p:last-child {
  color: var(--color-muted-gray);
  line-height: 1.8;
  max-width: 62ch;
  margin: 0;
}
.page-contact .contact-hours__scale {
  position: relative;
  display: flex;
  align-items: stretch;
  height: 28px;
  margin: 22px 0 30px;
  background: var(--color-carbon);
  border: 1px solid var(--color-graphite);
  clip-path: var(--clip-corner);
}
.page-contact .contact-hours__off {
  background:
    repeating-linear-gradient(-45deg, rgba(154, 154, 165, 0.12) 0, rgba(154, 154, 165, 0.12) 1px, transparent 1px, transparent 6px),
    var(--color-obsidian);
}
.page-contact .contact-hours__off--left {
  flex: 3 1 0;
  border-right: 1px dashed var(--color-graphite);
}
.page-contact .contact-hours__on {
  flex: 4 1 0;
  background: linear-gradient(90deg, var(--color-tech-blue), var(--color-gold));
  border-right: 1px dashed var(--color-graphite);
}
.page-contact .contact-hours__off--right {
  flex: 1 1 0;
}
.page-contact .contact-hours__tick {
  position: absolute;
  top: 100%;
  margin-top: 6px;
  font: 11px var(--font-mono);
  color: var(--color-muted-gray);
  font-weight: 400;
}
.page-contact .contact-hours__tick--start {
  left: 37.5%;
  transform: translateX(-50%);
}
.page-contact .contact-hours__tick--end {
  left: 87.5%;
  transform: translateX(-50%);
}
.page-contact .contact-hours__desc {
  color: var(--color-muted-gray);
  line-height: 1.8;
  margin: 0;
}
.page-contact .contact-hours__figure {
  margin: 6px 0 0;
  background: var(--color-carbon);
  border: 1px solid var(--color-graphite);
  clip-path: var(--clip-corner);
}
.page-contact .contact-hours__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .contact-hours__figure figcaption {
  font: 12px var(--font-mono);
  color: var(--color-muted-gray);
  padding: 10px 14px;
  border-top: 1px solid var(--color-graphite);
}

/* ===== 服务边界 ===== */
.page-contact .contact-boundary {
  padding-top: 56px;
}
.page-contact .contact-boundary__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.page-contact .contact-boundary__main p {
  color: var(--color-muted-gray);
  line-height: 1.9;
  max-width: 62ch;
}
.page-contact .contact-boundary__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-contact .contact-boundary__list li {
  position: relative;
  padding-left: 24px;
  color: #c5c5cc;
  line-height: 1.7;
}
.page-contact .contact-boundary__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 12px;
  height: 2px;
  background: var(--color-gold);
  clip-path: polygon(0 0, 100% 0, 80% 100%, 0 100%);
}

/* ===== 地址与备案 ===== */
.page-contact .contact-legal {
  position: relative;
  border: 1px solid var(--color-tech-blue);
  background: linear-gradient(135deg, var(--color-obsidian) 0%, var(--color-carbon) 100%);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  padding: 28px 24px;
}
.page-contact .contact-legal__cert {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 14px;
  padding: 14px 18px;
  background: var(--color-obsidian);
  border: 1px solid var(--color-gold);
  clip-path: var(--clip-corner);
  cursor: default;
  transition: border-color .2s, box-shadow .2s;
}
.page-contact .contact-legal__cert:hover,
.page-contact .contact-legal__cert:focus-visible {
  border-color: var(--color-gold-bright);
  box-shadow: inset 0 0 0 2px rgba(212, 168, 67, 0.2);
}
.page-contact .contact-legal__icp {
  font: 800 16px var(--font-mono);
  color: var(--color-gold-bright);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.page-contact .contact-legal__state {
  font: 12px var(--font-mono);
  color: var(--color-muted-gray);
}
.page-contact .contact-legal__cert::after {
  content: "ICP 备案已公示";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  margin-top: 8px;
  z-index: 3;
  padding: 6px 10px;
  background: var(--color-graphite);
  border: 1px solid var(--color-gold);
  color: var(--color-gold-bright);
  font: 12px var(--font-mono);
  text-align: center;
  clip-path: var(--clip-corner);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity .2s step-end, transform .2s steps(2, end);
  pointer-events: none;
}
.page-contact .contact-legal__cert:hover::after,
.page-contact .contact-legal__cert:focus-visible::after {
  opacity: 1;
  transform: translateY(0);
}
.page-contact .contact-legal__address {
  font: 600 17px var(--font-mono);
  color: var(--color-off-white);
  margin: 20px 0 8px;
}
.page-contact .contact-legal__note {
  color: var(--color-muted-gray);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
  max-width: 48ch;
}

/* ===== 支持中心入口 ===== */
.page-contact .contact-handoff {
  position: relative;
  margin-top: 56px;
  padding-top: 40px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
}
.page-contact .contact-handoff::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-tech-blue) 55%, transparent 100%);
  clip-path: polygon(0 0, 100% 0, 96% 100%, 0 100%);
}
.page-contact .contact-handoff p {
  color: var(--color-muted-gray);
  line-height: 1.8;
  margin: 0;
  max-width: 60ch;
}
.page-contact .contact-handoff__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ===== 桌面断点 ===== */
@media (min-width: 768px) {
  .page-contact .contact-hero {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
  }
  .page-contact .contact-hero h1 {
    font-size: 44px;
  }
  .page-contact .contact-hero__lead {
    font-size: 17px;
  }

  .page-contact .contact-channel__grid {
    grid-template-columns: repeat(12, 1fr);
  }
  .page-contact .contact-card--email {
    grid-column: span 7;
  }
  .page-contact .contact-card--phone {
    grid-column: span 5;
  }
  .page-contact .contact-card--address {
    grid-column: 1 / -1;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
    padding: 24px 28px;
  }
  .page-contact .contact-card--address .contact-card__icon {
    margin: 0;
  }
  .page-contact .contact-card--address .contact-card__label {
    flex: 0 0 auto;
  }
  .page-contact .contact-card--address .contact-card__value {
    flex: 1 1 auto;
    min-width: 300px;
  }
  .page-contact .contact-card--address .contact-card__note,
  .page-contact .contact-card--address .contact-card__hint {
    flex: 1 1 100%;
  }

  .page-contact .contact-hours {
    grid-template-columns: 1fr 1fr;
    column-gap: 36px;
  }
  .page-contact .contact-hours__text {
    grid-column: 1 / -1;
  }
  .page-contact .contact-hours__scale {
    grid-column: 1 / -1;
  }
  .page-contact .contact-hours__desc {
    grid-column: 1;
    align-self: center;
  }
  .page-contact .contact-hours__figure {
    grid-column: 2;
    grid-row: 3;
    margin: 0;
  }

  .page-contact .contact-boundary__inner {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
  }
  .page-contact .contact-legal {
    padding: 32px 30px;
  }
  .page-contact .contact-legal__cert::after {
    left: auto;
    right: -110px;
    top: auto;
    bottom: calc(100% + 8px);
    width: 132px;
    margin: 0;
  }

  .page-contact .contact-handoff {
    grid-template-columns: 1fr auto;
    gap: 40px;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-hero {
    gap: 56px;
  }
  .page-contact .contact-hero h1 {
    font-size: 50px;
  }
  .page-contact .contact-channel {
    padding-top: 72px;
  }
  .page-contact .contact-card {
    padding: 36px 32px 28px;
  }
  .page-contact .contact-card__value {
    font-size: 21px;
  }
  .page-contact .contact-hours,
  .page-contact .contact-boundary {
    padding-top: 72px;
  }
  .page-contact .contact-boundary__inner {
    gap: 72px;
  }
  .page-contact .contact-handoff {
    margin-top: 72px;
    padding-top: 48px;
  }
}