.page-contact {
  --pc-card: linear-gradient(180deg, rgba(19, 30, 61, .92), rgba(12, 20, 48, .92));
  --pc-hair: rgba(38, 50, 79, .9);
  overflow-x: hidden;
}

/* ============ 首屏 ============ */
.page-contact .contact-hero {
  position: relative;
  padding: 20px 0 0;
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto;
  height: 150%;
  background-image:
    linear-gradient(rgba(38, 50, 79, .5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(38, 50, 79, .5) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(ellipse 72% 62% at 66% 8%, #000 0%, transparent 72%);
  mask-image: radial-gradient(ellipse 72% 62% at 66% 8%, #000 0%, transparent 72%);
  pointer-events: none;
  z-index: 0;
}

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

.page-contact .contact-hero .crumb {
  margin-bottom: 26px;
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: 32px;
  padding-bottom: 8px;
}

.page-contact .contact-hero__copy {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-contact .contact-hero .display-title {
  margin: 0;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.07;
}

.page-contact .contact-hero .lede {
  margin: 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: clamp(15px, 2.3vw, 17px);
  line-height: 1.8;
}

.page-contact .contact-hero__meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-contact .contact-hero__figure {
  position: relative;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.page-contact .contact-hero__figure::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--orange) 58%, transparent);
  z-index: 2;
}

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

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: center;
    gap: 44px;
  }
}

/* ============ 问题分类切换 ============ */
.page-contact .contact-router__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 22px;
}

.page-contact .contact-router__hint {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.page-contact .contact-tabs {
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius);
  background: var(--pc-card);
  padding: 20px;
  box-shadow: var(--shadow);
}

.page-contact .tabs__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-contact .tab {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1;
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: color .24s var(--ease), background .24s var(--ease), border-color .24s var(--ease);
}

.page-contact .tab:hover {
  color: var(--white);
  border-color: var(--cyan);
}

.page-contact .tab[aria-selected="true"] {
  color: var(--ink-0);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 600;
}

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

.page-contact .contact-tabs__panel[data-open] {
  display: block;
  animation: contact-fade .32s var(--ease) both;
}

@keyframes contact-fade {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.page-contact .contact-tabs__pick {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--muted);
}

.page-contact .contact-tabs__pick strong {
  color: var(--cyan);
  font-size: 16px;
  letter-spacing: .01em;
}

.page-contact .contact-tabs__body {
  margin: 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--white);
}

/* ============ 主体双栏 ============ */
.page-contact .contact-grid {
  display: grid;
  gap: 44px;
}

.page-contact .contact-col {
  display: flex;
  flex-direction: column;
  gap: 28px;
  min-width: 0;
}

.page-contact .contact-channels {
  display: grid;
  gap: 18px;
}

.page-contact .contact-channels__lede {
  margin: -8px 0 0;
  color: var(--muted);
  font-size: 15px;
}

/* ---- 联系通道卡片 ---- */
.page-contact .contact-channel {
  position: relative;
  display: block;
  padding: 22px 22px 24px 24px;
  border: 1px solid var(--pc-hair);
  border-left-width: 2px;
  border-radius: var(--radius);
  background: var(--pc-card);
  box-shadow: var(--shadow);
}

.page-contact .contact-channel--mail { border-left-color: var(--cyan); }
.page-contact .contact-channel--phone { border-left-color: var(--orange); }
.page-contact .contact-channel--addr { border-left-color: var(--gold); }

.page-contact .contact-channel__head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
}

.page-contact .contact-channel .card__title {
  margin: 0;
  font-size: clamp(17px, 2.6vw, 20px);
  line-height: 1.4;
}

.page-contact .contact-channel__body {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

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

.page-contact .contact-channel__addr {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-all;
}

/* ---- 复制组件 ---- */
.page-contact .copy-chip {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin: 0;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(6, 11, 28, .72);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition: border-color .24s var(--ease), background .24s var(--ease);
}

.page-contact .copy-chip:hover {
  border-color: var(--cyan);
  background: rgba(35, 229, 213, .08);
}

.page-contact .copy-chip .mono {
  font-size: 15px;
  letter-spacing: .02em;
  word-break: break-all;
}

.page-contact .copy-chip__flag {
  margin-left: auto;
  flex: none;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan);
  opacity: 0;
  transition: opacity .2s var(--ease);
}

.page-contact .copy-chip[data-copied] .copy-chip__flag {
  opacity: 1;
}

/* ---- 响应节奏 ---- */
.page-contact .contact-sla {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: rgba(12, 20, 48, .55);
}

.page-contact .contact-sla .h3 {
  margin: 0 0 16px;
  font-size: clamp(18px, 2.6vw, 22px);
}

.page-contact .contact-sla__list {
  display: grid;
  gap: 16px;
  margin: 0;
}

.page-contact .contact-sla__row {
  display: grid;
  gap: 6px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.page-contact .contact-sla__row dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-contact .contact-sla__row dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---- 专属顾问 ---- */
.page-contact .contact-advisor {
  display: block;
  padding: 24px;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(35, 229, 213, .14), transparent 62%),
    var(--pc-card);
  box-shadow: var(--shadow);
}

.page-contact .contact-advisor .card__title {
  margin: 8px 0 12px;
  font-size: clamp(19px, 2.8vw, 24px);
  line-height: 1.35;
}

.page-contact .contact-advisor__body {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-advisor__note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

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

/* ---- 列表 ---- */
.page-contact .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .contact-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-contact .contact-list--orange li::before {
  background: var(--orange);
}

/* ---- 本地运营 ---- */
.page-contact .contact-local {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .contact-local__figure {
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

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

.page-contact .contact-local .h3 {
  margin: 4px 0 0;
  font-size: clamp(18px, 2.8vw, 23px);
}

.page-contact .contact-local p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---- 合作 ---- */
.page-contact .contact-partner {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(12, 20, 48, .8), rgba(6, 11, 28, .8));
}

.page-contact .contact-partner .h3 {
  margin: 0;
  font-size: clamp(18px, 2.8vw, 23px);
}

.page-contact .contact-partner p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-partner__cta {
  margin-top: 4px;
}

/* ---- 桌面栅格 ---- */
@media (min-width: 1024px) {
  .page-contact .contact-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .contact-col--side {
    padding-top: 58px;
  }

  .page-contact .contact-channel--phone {
    margin-left: 20px;
  }

  .page-contact .contact-channel--addr {
    margin-left: 40px;
  }

  .page-contact .contact-sla__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 22px;
  }
}

/* ============ 收束渐变带 ============ */
.page-contact .contact-band {
  margin-top: 68px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 150% at 10% 0%, rgba(35, 229, 213, .2), transparent 58%),
    radial-gradient(100% 130% at 90% 100%, rgba(255, 107, 44, .2), transparent 60%),
    linear-gradient(180deg, var(--ink-1), var(--ink-0));
}

.page-contact .contact-band__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 40px;
  padding-bottom: 40px;
  align-items: flex-start;
}

.page-contact .contact-band__line {
  margin: 0;
  max-width: 46ch;
  font-family: var(--font-display);
  font-size: clamp(19px, 3.4vw, 28px);
  line-height: 1.35;
  transform: rotate(-1.5deg);
  transform-origin: left center;
  color: var(--white);
}

@media (min-width: 860px) {
  .page-contact .contact-band__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    padding-top: 52px;
    padding-bottom: 52px;
  }
}

/* ============ 无障碍与降级 ============ */
.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact .tab:focus-visible,
.page-contact .copy-chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-tabs__panel[data-open] {
    animation: none;
  }

  .page-contact .contact-band__line {
    transform: none;
  }

  .page-contact .tab,
  .page-contact .copy-chip {
    transition: none;
  }
}