.page-contact {
  position: relative;
  background: var(--ink-900);
  color: var(--mist);
  overflow-x: hidden;
}

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

.page-contact .section {
  position: relative;
  padding: 56px 0;
}

@media (min-width: 900px) {
  .page-contact .section {
    padding: 84px 0;
  }
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: 32px 0 52px;
  overflow: hidden;
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 46px 0 84px;
  }
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -130px;
  right: -150px;
  width: min(620px, 78vw);
  height: 520px;
  background: linear-gradient(140deg, rgba(42, 245, 214, 0.18), rgba(42, 245, 214, 0) 70%);
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 72%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--line), rgba(36, 64, 110, 0));
}

.page-contact .contact-hero__crumbs {
  position: relative;
  margin-bottom: 30px;
}

.page-contact .contact-hero__crumbs .crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--steel);
}

.page-contact .contact-hero__crumbs .crumb {
  color: var(--steel);
  text-decoration: none;
}

.page-contact .contact-hero__crumbs .crumb:hover {
  color: var(--cyan);
}

.page-contact .contact-hero__crumbs .crumb--current {
  color: var(--mist);
}

.page-contact .contact-hero__inner {
  position: relative;
  display: grid;
  gap: 32px;
}

@media (min-width: 960px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 48px;
    align-items: end;
  }
}

.page-contact .contact-hero__lead h1 {
  margin: 12px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(34px, 7vw, 62px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-contact .contact-hero__lead .lede {
  max-width: 62ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .contact-hero__board {
  position: relative;
  padding: 22px 20px;
  background: rgba(22, 48, 92, 0.55);
  clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
}

.page-contact .contact-hero__board-title {
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

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

.page-contact .contact-hero__facts li {
  display: grid;
  gap: 5px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-hero__facts li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .contact-hero__key {
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-contact .contact-hero__val {
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 通道 ---------- */

.page-contact .contact-channels__intro {
  max-width: 68ch;
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .channels {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

@media (min-width: 880px) {
  .page-contact .channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

.page-contact .channel {
  --accent: var(--cyan);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 24px;
  background: linear-gradient(155deg, rgba(22, 48, 92, 0.92), rgba(14, 17, 22, 0.96));
  clip-path: polygon(22px 0, 100% 0, 100% 100%, 0 100%, 0 22px);
  outline: none;
  transition: transform 0.26s var(--ease), background 0.26s var(--ease);
}

.page-contact .channel--phone {
  --accent: var(--amber);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--line);
  clip-path: inherit;
  pointer-events: none;
  transition: border-color 0.26s var(--ease), box-shadow 0.26s var(--ease);
}

.page-contact .channel:hover,
.page-contact .channel:focus-visible {
  transform: translateY(-3px);
}

.page-contact .channel:hover::before,
.page-contact .channel:focus-visible::before {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent), inset 0 0 30px rgba(42, 245, 214, 0.1);
}

.page-contact .channel__bar {
  width: 42px;
  height: 3px;
  background: var(--accent);
}

.page-contact .channel__kind {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-contact .channel__title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(18px, 4.4vw, 23px);
  letter-spacing: 0.01em;
  color: var(--accent);
  word-break: break-all;
}

.page-contact .channel__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .channel__list {
  list-style: none;
  margin: 2px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .channel__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 1px;
  background: var(--accent);
}

.page-contact .channel__copy {
  align-self: flex-start;
  margin-top: auto;
}

.page-contact .contact-channels__figure {
  margin: 34px 0 0;
}

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

/* ---------- 差异反馈与合作 ---------- */

.page-contact .contact-fix__intro {
  max-width: 70ch;
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .fix-grid {
  display: grid;
  gap: 30px;
  margin-top: 34px;
}

@media (min-width: 980px) {
  .page-contact .fix-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
}

.page-contact .steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .steps__item {
  position: relative;
  padding: 0 0 26px 58px;
}

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

.page-contact .steps__item::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 32px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--line), rgba(36, 64, 110, 0.12));
}

.page-contact .steps__item:last-child::before {
  display: none;
}

.page-contact .steps__num {
  position: absolute;
  left: 0;
  top: 2px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 26px;
  font-size: 12px;
  color: var(--cyan);
  border: 1px solid var(--line);
  background: rgba(42, 245, 214, 0.07);
  clip-path: polygon(8px 0, 100% 0, 100% 100%, 0 100%, 0 8px);
}

.page-contact .steps__title {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--mist);
}

.page-contact .steps__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .fix-coop__kind {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-contact .fix-coop .panel__body p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .fix-coop__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .fix-coop__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .fix-coop__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 1px;
  background: var(--orange);
}

.page-contact .fix-coop .fix-coop__note {
  margin-bottom: 18px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--dim);
}

/* ---------- 地址 ---------- */

.page-contact .visit-grid {
  display: grid;
  gap: 28px;
}

@media (min-width: 960px) {
  .page-contact .visit-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 46px;
    align-items: center;
  }
}

.page-contact .visit-figure {
  margin: 0;
}

.page-contact .visit-info {
  position: relative;
}

.page-contact .visit-info h2 {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.005em;
  color: var(--mist);
}

.page-contact .visit-info .prose {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .visit-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.page-contact .visit-list .contact-list__item {
  display: grid;
  gap: 5px;
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .visit-list .contact-list__item:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .visit-list .contact-list__key {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-contact .visit-list .contact-list__value {
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
  word-break: break-word;
}

.page-contact .visit-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--dim);
}

/* ---------- 留言说明 ---------- */

.page-contact .contact-message__intro {
  max-width: 68ch;
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .message-grid {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

@media (min-width: 820px) {
  .page-contact .message-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

.page-contact .message-card {
  padding: 24px 22px;
  background: rgba(22, 48, 92, 0.42);
  border-left: 2px solid var(--cyan);
}

.page-contact .message-card--flow {
  border-left-color: var(--amber);
  background: rgba(255, 194, 75, 0.06);
}

.page-contact .message-card__title {
  margin: 0 0 16px;
  font-size: 16px;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-contact .message-card__list,
.page-contact .message-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .message-card__list li,
.page-contact .message-flow li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .message-card__list .mono {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-contact .message-flow .mono {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-contact .message-note {
  max-width: 78ch;
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--steel);
}

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

/* ---------- 收束 ---------- */

.page-contact .tail-band {
  display: grid;
  gap: 20px;
  padding: 28px 22px;
  background: linear-gradient(120deg, rgba(255, 138, 61, 0.14), rgba(11, 30, 58, 0.92) 64%);
  border-top: 2px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

@media (min-width: 860px) {
  .page-contact .tail-band {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 36px;
    align-items: center;
    padding: 38px 36px;
  }
}

.page-contact .tail-band__text h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 4.4vw, 30px);
  line-height: 1.24;
  color: var(--mist);
}

.page-contact .tail-band__text p {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--steel);
}

.page-contact .tail-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 860px) {
  .page-contact .tail-band__actions {
    justify-content: flex-end;
  }
}

/* ---------- 焦点与动效降级 ---------- */

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel::before {
    transition: none;
  }

  .page-contact .channel:hover,
  .page-contact .channel:focus-visible {
    transform: none;
  }
}