.page-contact {
  --pc-gap: clamp(20px, 2.6vw, 34px);
  --pc-shadow: 0 2px 8px rgba(11, 27, 58, 0.07), 0 26px 50px -30px rgba(11, 27, 58, 0.45);
  background: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(24px, 3.5vw, 44px);
  color: var(--oninverse);
  background:
    radial-gradient(120% 90% at 90% -10%, rgba(46, 123, 255, 0.32) 0%, rgba(46, 123, 255, 0) 56%),
    radial-gradient(90% 70% at 0% 100%, rgba(242, 193, 78, 0.12) 0%, rgba(242, 193, 78, 0) 60%),
    linear-gradient(158deg, var(--ink-navy) 0%, var(--ink-navy-deep) 54%, var(--deep-indigo) 100%);
}

.page-contact .contact-hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 6px;
  align-items: center;
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 46px);
  padding: 0;
  font-size: var(--step-12);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-contact .contact-hero .breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-contact .contact-hero .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: rgba(237, 240, 250, 0.36);
}

.page-contact .contact-hero .breadcrumb__link,
.page-contact .contact-hero .breadcrumb__item span {
  color: var(--oninverse-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-contact .contact-hero .breadcrumb__item span {
  color: var(--gold);
}

.page-contact .contact-hero .breadcrumb__link:hover,
.page-contact .contact-hero .breadcrumb__link:focus-visible {
  color: var(--surface);
  border-bottom-color: var(--electric);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: end;
  padding-bottom: clamp(34px, 5vw, 62px);
}

.page-contact .contact-hero .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-contact .contact-hero__title {
  margin: 0 0 clamp(16px, 2vw, 24px);
  font-size: clamp(38px, 7.2vw, 84px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--surface);
}

.page-contact .contact-hero__lead {
  max-width: 60ch;
  margin: 0;
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.8;
  color: var(--oninverse);
}

.page-contact .contact-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-hero__chips .chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.04em;
  border: 1px solid transparent;
}

.page-contact .contact-hero__chips .chip--gold {
  background: var(--gold);
  color: var(--ink-navy);
}

.page-contact .contact-hero__chips .chip--blue {
  background: var(--electric);
  color: var(--surface);
}

.page-contact .contact-hero__chips .chip--teal {
  background: rgba(237, 240, 250, 0.1);
  border-color: rgba(237, 240, 250, 0.34);
  color: var(--oninverse);
}

.page-contact .contact-hero__aside {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: clamp(18px, 2.4vw, 26px);
  border-radius: var(--r-lg);
  border: 1px solid rgba(237, 240, 250, 0.18);
  background: rgba(8, 21, 44, 0.42);
}

.page-contact .contact-hero__aside-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-contact .contact-hero__aside-link {
  padding: 11px 0;
  font-size: var(--step-17);
  color: var(--oninverse);
  text-decoration: none;
  border-bottom: 1px solid rgba(237, 240, 250, 0.14);
  transition: color 0.24s var(--ease), padding-left 0.24s var(--ease);
}

.page-contact .contact-hero__aside-link:last-child {
  border-bottom: 0;
}

.page-contact .contact-hero__aside-link:hover,
.page-contact .contact-hero__aside-link:focus-visible {
  color: var(--gold);
  padding-left: 6px;
}

.page-contact .contact-hero__figure {
  margin: 0;
  padding-inline: clamp(20px, 4vw, 56px);
  max-width: 1320px;
  margin-inline: auto;
}

.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 700;
  object-fit: cover;
  border-radius: var(--r-xl) var(--r-xl) 0 0;
}

/* ---------- 章节标题补丁 ---------- */
.page-contact .section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 6px 16px;
  margin-bottom: clamp(30px, 4.4vw, 56px);
}

.page-contact .section-head__no {
  font-family: var(--font-mono);
  font-size: var(--step-14);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-contact .section-head__title {
  margin: 0;
  font-size: clamp(26px, 3.6vw, 46px);
  font-weight: 800;
  line-height: 1.16;
  color: var(--text-strong);
}

.page-contact .section-head__note {
  grid-column: 2;
  margin: 0;
  font-size: var(--step-14);
  color: var(--text-muted);
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4.6vw, 64px);
}

.page-contact .contact-line {
  padding-block: clamp(20px, 2.6vw, 30px);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-line:first-child {
  padding-top: 0;
}

.page-contact .contact-line--last {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .contact-line__label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.16em;
  color: var(--text-muted);
}

.page-contact .contact-line__value {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
}

.page-contact .contact-line__text {
  font-family: var(--font-mono);
  font-size: clamp(16px, 4.4vw, 34px);
  font-weight: 700;
  line-height: 1.24;
  color: var(--text-strong);
  overflow-wrap: anywhere;
}

.page-contact .contact-line__plain {
  margin: 0;
  font-size: var(--step-17);
  line-height: 1.75;
  color: var(--text-strong);
}

.page-contact .contact-line__hint {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--text-muted);
}

.page-contact .copy-btn {
  flex: 0 0 auto;
  padding: 7px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--surface);
  color: var(--electric-ink);
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  border-color: var(--electric);
  background: rgba(46, 123, 255, 0.08);
}

.page-contact .copy-btn[data-copied="true"] {
  border-color: var(--gold);
  background: var(--gold);
  color: var(--ink-navy);
}

.page-contact .contact-reach__aside {
  padding: clamp(24px, 3vw, 34px);
  border-radius: var(--r-xl);
  background: linear-gradient(180deg, var(--surface) 0%, var(--paper) 100%);
  border: 1px solid var(--line);
  box-shadow: var(--pc-shadow);
}

.page-contact .contact-reach__aside-title {
  margin: 0 0 clamp(22px, 2.6vw, 30px);
  font-size: var(--step-21);
  font-weight: 800;
  color: var(--text-strong);
}

.page-contact .flow {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .flow__item {
  position: relative;
  padding-left: 56px;
  padding-bottom: 26px;
}

.page-contact .flow__item:last-child {
  padding-bottom: 0;
}

.page-contact .flow__item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 18px;
  top: 42px;
  bottom: 6px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--line), rgba(215, 222, 234, 0.3));
}

.page-contact .flow__no {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  font-weight: 700;
  color: var(--ink-navy);
  background: var(--gold);
  box-shadow: 0 0 0 6px rgba(242, 193, 78, 0.16);
}

.page-contact .flow__title {
  margin: 6px 0 6px;
  font-size: var(--step-17);
  font-weight: 800;
  color: var(--text-strong);
}

.page-contact .flow__text {
  margin: 0;
  font-size: var(--step-14);
  line-height: 1.78;
  color: var(--text-muted);
}

/* ---------- 反馈建议 ---------- */
.page-contact .contact-brief__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4.4vw, 58px);
  align-items: start;
}

.page-contact .contact-brief__list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-contact .brief-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: clamp(18px, 2.2vw, 24px) 0;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.2s var(--ease);
}

.page-contact .brief-item__key {
  font-family: var(--font-mono);
  font-size: var(--step-14);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--electric-ink);
}

.page-contact .brief-item__text {
  margin: 0;
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--text-muted);
}

.page-contact .contact-brief__figure {
  margin: 0;
  padding: clamp(14px, 1.6vw, 20px);
  border-radius: var(--r-xl);
  background: var(--paper);
  border: 1px solid var(--line);
}

.page-contact .contact-brief__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 800;
  object-fit: cover;
  border-radius: var(--r-lg);
}

.page-contact .contact-brief__figure .frame__caption {
  display: block;
  margin-top: 14px;
  font-size: var(--step-12);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

/* ---------- 合作洽谈 ---------- */
.page-contact .contact-coop {
  color: var(--oninverse);
}

.page-contact .section-head--onDark .section-head__title {
  color: var(--surface);
}

.page-contact .section-head--onDark .section-head__note {
  color: var(--oninverse-muted);
}

.page-contact .contact-coop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4.4vw, 58px);
  align-items: start;
}

.page-contact .contact-coop__text {
  margin: 0 0 18px;
  max-width: 58ch;
  font-size: var(--step-17);
  line-height: 1.85;
  color: var(--oninverse);
}

.page-contact .contact-coop__text .num--accent {
  color: var(--gold);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 1px;
}

.page-contact .contact-coop__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 34px);
}

.page-contact .contact-coop__panel {
  padding: clamp(24px, 3vw, 36px);
  border-radius: var(--r-xl);
  background: rgba(8, 21, 44, 0.34);
  border: 1px solid rgba(233, 245, 241, 0.22);
}

.page-contact .contact-coop__panel-title {
  margin: 0 0 20px;
  font-size: var(--step-21);
  font-weight: 800;
  color: var(--gold);
}

.page-contact .coop-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-contact .coop-list__item {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 12px;
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--oninverse);
}

.page-contact .coop-list__item strong {
  color: var(--surface);
  font-weight: 700;
}

.page-contact .coop-list__dot {
  width: 8px;
  height: 8px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--electric);
  box-shadow: 0 0 0 4px rgba(46, 123, 255, 0.18);
}

.page-contact .coop-list__item--last .coop-list__dot {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(242, 193, 78, 0.18);
}

.page-contact .contact-coop__panel-foot {
  margin: 24px 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(233, 245, 241, 0.2);
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--oninverse-muted);
}

.page-contact .link--onDark {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 193, 78, 0.5);
  transition: border-color 0.24s var(--ease), color 0.24s var(--ease);
}

.page-contact .link--onDark:hover,
.page-contact .link--onDark:focus-visible {
  color: var(--surface);
  border-bottom-color: var(--surface);
}

/* ---------- 办公地点 ---------- */
.page-contact .contact-place__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-contact .contact-place__card {
  padding: clamp(24px, 3vw, 36px);
  border-radius: var(--r-xl);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--pc-shadow);
  border-left: 6px solid var(--gold);
}

.page-contact .contact-place__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.16em;
  color: var(--text-muted);
}

.page-contact .contact-place__addr {
  margin: 0 0 20px;
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 800;
  line-height: 1.5;
  color: var(--text-strong);
}

.page-contact .contact-place__text {
  margin: 0 0 22px;
  max-width: 60ch;
  font-size: var(--step-14);
  line-height: 1.85;
  color: var(--text-muted);
}

.page-contact .contact-place__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.page-contact .contact-place__meta .chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.04em;
}

.page-contact .contact-place__meta .chip--blue {
  background: rgba(46, 123, 255, 0.12);
  color: var(--electric-ink);
  border: 1px solid rgba(46, 123, 255, 0.28);
}

.page-contact .contact-place__meta .chip--wine {
  background: var(--wine);
  color: var(--surface);
}

.page-contact .contact-place__foot {
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--text-muted);
}

.page-contact .contact-place__foot .link {
  color: var(--electric-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(27, 95, 217, 0.4);
  transition: border-color 0.24s var(--ease), color 0.24s var(--ease);
}

.page-contact .contact-place__foot .link:hover,
.page-contact .contact-place__foot .link:focus-visible {
  color: var(--ink-navy);
  border-bottom-color: var(--ink-navy);
}

.page-contact .place-map {
  display: block;
  width: 100%;
  height: auto;
  color: var(--electric);
  border-radius: var(--r-xl);
  background: linear-gradient(160deg, var(--ink-navy) 0%, var(--deep-indigo) 100%);
}

.page-contact .place-map__grid {
  fill: none;
  stroke: rgba(237, 240, 250, 0.1);
  stroke-width: 1;
}

.page-contact .place-map__route {
  fill: none;
  stroke: var(--gold);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 10 8;
  opacity: 0.75;
}

.page-contact .place-map__route--alt {
  stroke: var(--electric);
  opacity: 0.6;
  stroke-dasharray: 4 9;
}

.page-contact .place-map__pulse {
  fill: rgba(242, 193, 78, 0.16);
  stroke: rgba(242, 193, 78, 0.5);
  stroke-width: 1;
}

.page-contact .place-map__dot {
  fill: var(--gold);
}

.page-contact .place-map__dot--sm {
  fill: var(--electric);
}

.page-contact .place-map__label {
  fill: var(--surface);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.1em;
}

.page-contact .place-map__caption {
  margin: 16px 0 0;
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--text-muted);
}

/* ---------- 滚动点亮的步骤编号（渐进增强） ---------- */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .page-contact .flow__no {
      animation: pc-flow-lit linear both;
      animation-timeline: view();
      animation-range: entry 10% cover 42%;
    }

    @keyframes pc-flow-lit {
      from {
        background: var(--surface);
        color: var(--text-muted);
        box-shadow: 0 0 0 0 rgba(242, 193, 78, 0);
      }
      to {
        background: var(--gold);
        color: var(--ink-navy);
        box-shadow: 0 0 0 6px rgba(242, 193, 78, 0.16);
      }
    }
  }
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .brief-item {
    grid-template-columns: 160px 1fr;
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .contact-reach__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .contact-brief__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .contact-coop__grid {
    grid-template-columns: 6fr 6fr;
  }

  .page-contact .contact-place__grid {
    grid-template-columns: 7fr 5fr;
  }
}

@media (min-width: 1240px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 8fr 4fr;
  }

  .page-contact .contact-coop__grid {
    grid-template-columns: 5fr 6fr;
  }

  .page-contact .contact-place__grid {
    grid-template-columns: 8fr 4fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-hero__aside-link,
  .page-contact .copy-btn,
  .page-contact .brief-item,
  .page-contact .link--onDark,
  .page-contact .contact-place__foot .link {
    transition: none;
  }
}