.page-contact {
  --rail-w: 232px;
  --rail-top: calc(var(--header-h-solid) + 32px);
  --ink-soft: #33475c;

  background: var(--warm);
  color: var(--night);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding-bottom: var(--sp-6);
  background:
    radial-gradient(120% 88% at 80% 6%, rgba(55, 224, 200, 0.16), transparent 62%),
    linear-gradient(168deg, var(--night) 0%, var(--deep) 100%);
  color: var(--warm);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(201, 210, 218, 0.1) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(201, 210, 218, 0.1) 0 1px, transparent 1px 96px);
  pointer-events: none;
}

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

.page-contact .contact-hero .breadcrumb__link {
  color: var(--frost);
}

.page-contact .contact-hero .breadcrumb__current {
  color: rgba(246, 244, 239, 0.66);
}

.page-contact .contact-hero__text {
  max-width: 940px;
  margin-top: var(--sp-4);
}

.page-contact .contact-hero .eyebrow {
  color: var(--frost);
}

.page-contact .contact-hero h1 {
  margin: var(--sp-3) 0;
  font-size: clamp(2rem, 5.4vw, 3.7rem);
  line-height: 1.14;
  letter-spacing: 0.04em;
  font-weight: 800;
  max-width: 22ch;
}

.page-contact .contact-hero .lede {
  max-width: 64ch;
  margin: 0;
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  line-height: 1.85;
  color: rgba(246, 244, 239, 0.84);
}

.page-contact .lane-list {
  list-style: none;
  margin: var(--sp-4) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.page-contact .lane__link {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 12px 20px;
  border: 2px solid rgba(201, 210, 218, 0.38);
  border-radius: var(--radius);
  color: var(--warm);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .lane__link:hover,
.page-contact .lane__link:focus-visible {
  border-color: var(--aurora);
  background: rgba(55, 224, 200, 0.12);
}

.page-contact .lane__no {
  color: var(--aurora);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.14em;
  font-size: 0.85rem;
}

/* ---------- 主栅格 ---------- */

.page-contact .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-4);
  padding-block: var(--sp-5);
}

/* ---------- 左侧坐标栏 ---------- */

.page-contact .coord-rail {
  align-self: start;
  border: var(--line);
  border-radius: var(--radius);
  background: var(--warm);
  box-shadow: 4px 4px 0 var(--polar);
  padding: var(--sp-2);
}

.page-contact .coord-rail__head {
  margin: 0 0 var(--sp-2);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  font-variant-numeric: tabular-nums;
  color: var(--night);
  font-weight: 700;
}

.page-contact .coord-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--sp-1);
  overflow-x: auto;
}

.page-contact .coord-list li {
  flex: 0 0 auto;
}

.page-contact .coord-list__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 10px;
  border-bottom: 3px solid transparent;
  color: var(--night);
  text-decoration: none;
  font-size: 0.92rem;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .coord-list__link:hover,
.page-contact .coord-list__link:focus-visible {
  border-bottom-color: var(--aurora);
  background: rgba(55, 224, 200, 0.14);
}

.page-contact .coord-list__no {
  color: var(--mist);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums;
}

.page-contact .rail-path {
  display: none;
  margin: var(--sp-3) 0 0;
  padding-top: var(--sp-2);
  border-top: var(--line-soft);
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--mist);
}

@media (min-width: 960px) {
  .page-contact .contact-layout {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: var(--sp-5);
  }

  .page-contact .coord-rail {
    position: sticky;
    top: var(--rail-top);
    padding: var(--sp-3);
    box-shadow: var(--shadow-hard);
  }

  .page-contact .coord-list {
    display: grid;
    gap: 2px;
    overflow: visible;
  }

  .page-contact .coord-list__link {
    border-bottom: 0;
    border-left: 3px solid transparent;
    padding: 9px 8px;
    white-space: normal;
  }

  .page-contact .coord-list__link:hover,
  .page-contact .coord-list__link:focus-visible {
    border-left-color: var(--aurora);
  }

  .page-contact .rail-path {
    display: block;
  }
}

/* ---------- 内容区块 ---------- */

.page-contact .c-block {
  padding-block: var(--sp-5);
  border-top: var(--line);
}

.page-contact .c-block:first-child {
  border-top: 0;
  padding-top: 0;
}

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

.page-contact .c-lede {
  max-width: 62ch;
  margin: var(--sp-3) 0 0;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .c-subtitle {
  margin: var(--sp-4) 0 0;
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.page-contact .c-block .section-title {
  margin-top: var(--sp-2);
}

/* ---------- 反馈通道 ---------- */

.page-contact .feedback-grid {
  display: grid;
  gap: var(--sp-4);
  margin-top: var(--sp-4);
}

.page-contact .mini-steps {
  list-style: none;
  counter-reset: ms;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--sp-3);
}

.page-contact .mini-steps > li {
  position: relative;
  padding-left: 54px;
}

.page-contact .mini-steps > li::before {
  counter-increment: ms;
  content: "0" counter(ms);
  position: absolute;
  left: 0;
  top: 0;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  background: var(--night);
  color: var(--aurora);
  font-size: 0.86rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  border-radius: var(--radius);
}

.page-contact .mini-steps__title {
  margin: 0 0 4px;
  font-size: 1rem;
  letter-spacing: 0.06em;
}

.page-contact .mini-steps__text {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .prep-list {
  list-style: none;
  margin: var(--sp-2) 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .prep-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-contact .prep-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  background: var(--aurora);
  border: 2px solid var(--night);
}

.page-contact .media__frame img {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .feedback-media {
  margin: 0;
}

.page-contact .feedback-media .media__frame {
  border: var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-hard);
}

.page-contact .media__caption {
  margin-top: var(--sp-2);
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--mist);
}

@media (min-width: 900px) {
  .page-contact .feedback-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: var(--sp-5);
    align-items: start;
  }
}

/* ---------- 联系方式 ---------- */

.page-contact .c-block--channels {
  padding-inline: var(--sp-3);
  background: var(--night);
  color: var(--warm);
  border-top: 6px solid var(--aurora);
  border-radius: var(--radius);
}

.page-contact .c-block--channels .eyebrow,
.page-contact .c-block--channels .section-title {
  color: var(--warm);
}

.page-contact .c-lede--on-dark {
  color: rgba(246, 244, 239, 0.78);
}

.page-contact .channels-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-3);
  border: var(--line);
  border-radius: var(--radius);
  background: var(--warm);
  box-shadow: var(--shadow-hard);
}

.page-contact .channel-card__title {
  margin: 0;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
}

.page-contact .channel-card__value {
  margin: 0;
  padding-left: 10px;
  border-left: 3px solid var(--aurora);
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.02em;
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}

.page-contact .channel-card__note {
  margin: 0 0 auto;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-contact .channel-card .copy-btn {
  align-self: flex-start;
  margin-top: var(--sp-2);
}

.page-contact .channels-visual {
  margin: var(--sp-4) 0 0;
}

.page-contact .channels-visual .media__frame {
  height: 200px;
  border: 2px solid rgba(201, 210, 218, 0.36);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .channels-visual .media__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .c-block--channels .media__caption {
  color: var(--mist);
}

@media (min-width: 700px) {
  .page-contact .channels-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .channels-visual .media__frame {
    height: 260px;
  }
}

/* ---------- 处理流程 ---------- */

.page-contact .flow {
  list-style: none;
  margin: var(--sp-4) 0 0;
  padding: 0;
  display: grid;
  gap: var(--sp-4);
}

.page-contact .flow__step {
  position: relative;
  padding-top: 60px;
}

.page-contact .flow__step::after {
  content: "";
  position: absolute;
  top: 23px;
  left: 56px;
  right: 0;
  border-top: 2px dashed var(--silver);
}

.page-contact .flow__step:last-child::after {
  display: none;
}

.page-contact .flow__no {
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 2px solid var(--night);
  border-radius: var(--radius);
  background: var(--aurora);
  color: var(--polar);
  font-weight: 800;
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .flow__step:hover .flow__no {
  background: var(--night);
  color: var(--aurora);
}

.page-contact .flow__title {
  margin: 0 0 6px;
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.page-contact .flow__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .flow__foot {
  margin: var(--sp-4) 0 0;
  padding: var(--sp-2) var(--sp-3);
  border-left: 4px solid var(--glacier);
  background: rgba(127, 182, 224, 0.14);
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--night);
}

@media (min-width: 760px) {
  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--sp-3);
  }

  .page-contact .flow__step {
    padding-right: var(--sp-3);
  }
}

/* ---------- 商务对接 ---------- */

.page-contact .biz-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}

.page-contact .biz-item {
  padding-top: var(--sp-2);
  border-top: 2px solid var(--night);
}

.page-contact .biz-item__title {
  margin: 0 0 8px;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}

.page-contact .biz-item__text {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-contact .biz-link {
  color: var(--night);
  text-decoration: none;
  border-bottom: 2px solid var(--aurora);
  transition: background-color var(--dur) var(--ease);
}

.page-contact .biz-link:hover,
.page-contact .biz-link:focus-visible {
  background: var(--frost);
}

@media (min-width: 760px) {
  .page-contact .biz-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-4);
  }
}

/* ---------- 提交提示 ---------- */

.page-contact .tips-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-4);
}

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

.page-contact .checklist__item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  border: var(--line);
  border-radius: var(--radius);
  background: var(--warm);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .checklist__item:hover {
  border-color: var(--aurora);
  box-shadow: var(--shadow-hard);
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  border: 2px solid var(--night);
  border-radius: 0;
  background: #ffffff;
  display: grid;
  place-items: center;
  cursor: pointer;
}

.page-contact .checklist__box:checked {
  background: var(--aurora);
}

.page-contact .checklist__box:checked::after {
  content: "✓";
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  color: var(--polar);
}

.page-contact .checklist__text {
  font-size: 0.95rem;
  line-height: 1.6;
  transition: color var(--dur) var(--ease);
}

.page-contact .checklist__box:checked + .checklist__text {
  color: var(--mist);
}

.page-contact .tips-note {
  padding: var(--sp-3);
  border: 2px solid var(--silver);
  border-left: 6px solid var(--glacier);
  border-radius: var(--radius);
  background: var(--frost);
}

.page-contact .tips-note p {
  margin: 0 0 var(--sp-2);
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--deep);
}

.page-contact .tips-note p:last-child {
  margin-bottom: 0;
}

.page-contact .inline-link {
  color: var(--night);
  text-decoration: none;
  border-bottom: 2px solid var(--aurora);
  transition: background-color var(--dur) var(--ease);
}

.page-contact .inline-link:hover,
.page-contact .inline-link:focus-visible {
  background: rgba(55, 224, 200, 0.22);
}

@media (min-width: 820px) {
  .page-contact .tips-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: var(--sp-5);
  }
}

/* ---------- 收束提示带 ---------- */

.page-contact .notice-band {
  position: relative;
  padding-block: var(--sp-5);
  background: var(--night);
  border-top: 6px solid var(--maple);
  color: var(--warm);
  overflow: hidden;
}

.page-contact .notice-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(201, 210, 218, 0.09) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(201, 210, 218, 0.09) 0 1px, transparent 1px 72px);
  pointer-events: none;
}

.page-contact .notice-band__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.page-contact .notice-band .eyebrow {
  color: var(--frost);
}

.page-contact .notice-band__title {
  margin: var(--sp-2) 0 var(--sp-2);
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: 0.06em;
}

.page-contact .notice-band__text {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.85;
  color: rgba(246, 244, 239, 0.82);
}

.page-contact .notice-band__link {
  display: inline-flex;
  align-items: center;
  margin-top: var(--sp-3);
  padding: 10px 20px;
  border: 2px solid var(--aurora);
  border-radius: var(--radius);
  color: var(--aurora);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .notice-band__link:hover,
.page-contact .notice-band__link:focus-visible {
  background: var(--aurora);
  color: var(--polar);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .lane__link,
  .page-contact .coord-list__link,
  .page-contact .flow__no,
  .page-contact .checklist__item,
  .page-contact .checklist__text,
  .page-contact .biz-link,
  .page-contact .inline-link,
  .page-contact .notice-band__link {
    transition: none;
  }
}