.page-contact {
  --contact-card-bg: linear-gradient(155deg, var(--ink-800) 0%, var(--ink-750) 100%);
  --contact-gap: clamp(16px, 2.4vw, 26px);
}

.page-contact .page-contact__crumbs {
  padding-top: clamp(18px, 2.6vw, 32px);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(26px, 4vw, 54px) clamp(44px, 6vw, 86px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -28%;
  right: -16%;
  width: min(720px, 74vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(61, 245, 200, .18), rgba(61, 245, 200, 0) 66%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: 0;
  bottom: 0;
  width: min(560px, 64%);
  height: 60%;
  background: linear-gradient(135deg, rgba(255, 138, 61, .16), rgba(92, 200, 255, .05));
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}

.page-contact .contact-hero__copy h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.12;
  letter-spacing: -.02em;
}

.page-contact .contact-hero__copy .lead {
  margin: 18px 0 0;
  max-width: 56ch;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .hero-metrics {
  list-style: none;
  margin: clamp(26px, 3.6vw, 42px) 0 0;
  padding: clamp(18px, 2.4vw, 24px) 0 0;
  border-top: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 16px 22px;
}

.page-contact .hero-metrics li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}

.page-contact .hero-metrics .mono {
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -.03em;
}

.page-contact .hero-metrics__label {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--mist);
}

.page-contact .contact-hero__media {
  --media-ratio: 2 / 1;
  margin: 0;
}

/* ---------- 章节标题 ---------- */

.page-contact .section-head {
  max-width: 740px;
}

.page-contact .section-head h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.2;
  letter-spacing: -.015em;
}

.page-contact .section-head__lead {
  margin: 16px 0 0;
}

/* ---------- 合作方向 ---------- */

.page-contact .directions {
  margin-top: clamp(28px, 4vw, 46px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
}

.page-contact .direction-card {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 2.8vw, 30px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: var(--contact-card-bg);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .direction-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--stripe-accent, var(--cyan));
}

.page-contact .direction-card:nth-child(1) { --stripe-accent: var(--cyan); }
.page-contact .direction-card:nth-child(2) { --stripe-accent: var(--blue); }
.page-contact .direction-card:nth-child(3) { --stripe-accent: var(--orange); }
.page-contact .direction-card:nth-child(4) { --stripe-accent: var(--red); }

.page-contact .direction-card:hover {
  border-color: rgba(61, 245, 200, .42);
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.page-contact .direction-card__index {
  display: block;
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--stripe-accent, var(--cyan));
  margin-bottom: 14px;
}

.page-contact .direction-card__title {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.32;
}

.page-contact .direction-card p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--paper);
  opacity: .88;
}

.page-contact .direction-card__points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .direction-card__points li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .direction-card__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .64em;
  width: 7px;
  height: 2px;
  background: var(--stripe-accent, var(--cyan));
}

/* ---------- 流程 + 联系卡双栏 ---------- */

.page-contact .workbench {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 46px);
}

.page-contact .workbench__main,
.page-contact .workbench__aside {
  min-width: 0;
}

.page-contact .workbench__aside {
  display: grid;
  align-content: start;
  gap: clamp(16px, 2vw, 22px);
}

.page-contact .flow {
  list-style: none;
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .flow__step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2vw, 24px);
  align-items: start;
  padding: clamp(18px, 2.4vw, 26px) clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--flow-accent, var(--cyan));
  border-radius: var(--r-md);
  background: rgba(18, 56, 46, .38);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .flow__step:nth-child(2) { --flow-accent: var(--blue); }
.page-contact .flow__step:nth-child(3) { --flow-accent: var(--cyan); }
.page-contact .flow__step:nth-child(4) { --flow-accent: var(--orange); }
.page-contact .flow__step:nth-child(5) { --flow-accent: var(--red); }

.page-contact .flow__step:hover {
  background: rgba(18, 56, 46, .64);
  transform: translateX(3px);
}

.page-contact .flow__num {
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--flow-accent, var(--cyan));
}

.page-contact .flow__title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.35;
}

.page-contact .flow__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper);
  opacity: .84;
}

.page-contact .workbench__footnote {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .workbench__footnote a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 245, 200, .38);
}

.page-contact .workbench__footnote a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 联系卡 ---------- */

.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--contact-card-bg);
  box-shadow: var(--shadow-soft);
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  top: -34px;
  right: -34px;
  width: 132px;
  height: 132px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61, 245, 200, .22), transparent 68%);
  pointer-events: none;
}

.page-contact .contact-card > * {
  position: relative;
}

.page-contact .contact-card__title {
  margin: 10px 0 0;
  font-size: clamp(21px, 2.6vw, 26px);
  line-height: 1.25;
}

.page-contact .contact-list {
  margin: clamp(18px, 2.4vw, 24px) 0 0;
  padding: 0;
  display: grid;
}

.page-contact .contact-list__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line-soft);
}

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

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

.page-contact .contact-list dt {
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-contact .contact-list dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.62;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .contact-list dd.mono {
  font-size: 15px;
  letter-spacing: -.01em;
  color: var(--cyan);
}

.page-contact .contact-card__note {
  margin: clamp(18px, 2.2vw, 22px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .contact-card__more {
  margin: 12px 0 0;
  font-size: 13.5px;
}

.page-contact .contact-card__more a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(92, 200, 255, .35);
}

.page-contact .contact-card__more a:hover {
  border-bottom-color: var(--blue);
}

.page-contact .workbench__media {
  --media-ratio: 5 / 4;
  margin: 0;
}

/* ---------- 反馈与纠错 ---------- */

.page-contact .feedback {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 44px);
  padding: clamp(26px, 3.6vw, 44px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, rgba(18, 56, 46, .74), rgba(8, 28, 23, .82));
}

.page-contact .feedback__intro h2 {
  margin: 10px 0 0;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.22;
}

.page-contact .feedback__intro p {
  margin: 16px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--paper);
  opacity: .86;
}

.page-contact .feedback__intro .btn {
  margin-top: 22px;
}

.page-contact .feedback__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  align-content: start;
  gap: 14px;
}

.page-contact .feedback__item {
  display: grid;
  gap: 10px;
  padding: clamp(16px, 2vw, 20px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(8, 28, 23, .58);
}

.page-contact .feedback__item .tag {
  justify-self: start;
}

.page-contact .feedback__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper);
  opacity: .88;
}

/* ---------- 服务地区与备案 ---------- */

.page-contact .region-panel {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.4vw, 44px);
  padding: clamp(26px, 3.6vw, 46px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(circle at 88% 6%, rgba(61, 245, 200, .14), transparent 58%),
    var(--ink-800);
}

.page-contact .region-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(118deg, rgba(233, 242, 238, .05) 0 1px, transparent 1px 20px);
  pointer-events: none;
}

.page-contact .region-panel__copy,
.page-contact .region-panel__meta {
  position: relative;
}

.page-contact .region-panel__copy h2 {
  margin: 10px 0 0;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.22;
}

.page-contact .region-panel__copy p {
  margin: 16px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--paper);
  opacity: .88;
}

.page-contact .region-panel__copy p.muted {
  font-size: 14.5px;
}

.page-contact .region-panel__meta {
  margin: 0;
  display: grid;
  align-content: start;
  border-top: 1px solid var(--line-soft);
}

.page-contact .region-panel__meta > div {
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .region-panel__meta > div:last-child {
  border-bottom: 0;
}

.page-contact .region-panel__meta dt {
  margin-bottom: 5px;
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-contact .region-panel__meta dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .region-panel__meta dd.mono {
  color: var(--cyan);
  letter-spacing: -.01em;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .directions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: clamp(36px, 5vw, 68px);
  }

  .page-contact .feedback {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }

  .page-contact .region-panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .9fr);
    align-items: start;
  }

  .page-contact .region-panel__meta {
    border-top: 0;
    border-left: 1px solid var(--line-soft);
    padding-left: clamp(20px, 2.6vw, 32px);
  }
}

@media (min-width: 1000px) {
  .page-contact .workbench {
    grid-template-columns: minmax(0, 1.6fr) minmax(290px, .9fr);
    align-items: start;
  }
}

@media (min-width: 1000px) and (min-height: 860px) {
  .page-contact .workbench__aside {
    position: sticky;
    top: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .direction-card,
  .page-contact .flow__step {
    transition: none;
  }

  .page-contact .direction-card:hover,
  .page-contact .flow__step:hover {
    transform: none;
  }
}