.page-contact {
  --co-line-dark: rgba(244, 247, 250, 0.14);
  --co-line-light: rgba(18, 26, 36, 0.12);
  --co-dim: rgba(244, 247, 250, 0.72);
  background: var(--abyss-950);
}

.page-contact .panel--abyss,
.page-contact .panel--graphite,
.page-contact .panel--route {
  color: var(--board-050);
}

.page-contact .panel--board {
  color: var(--ink-800);
}

/* ---------- 通用区块标题 ---------- */
.page-contact .co-head {
  display: grid;
  gap: 12px;
  max-width: 62ch;
  margin-bottom: clamp(30px, 4vw, 52px);
}

.page-contact .co-head--tight {
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-contact .co-head__no {
  margin: 0;
  font-size: 13px;
  line-height: 1;
  letter-spacing: 0.2em;
  color: var(--signal-500);
}

.page-contact .co-head__title {
  margin: 0;
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-contact .co-head__sub {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  max-width: 46ch;
  color: var(--haze-400);
}

.page-contact .panel--board .co-head__sub {
  color: var(--steel-600);
}

.page-contact .panel--route .co-head__no {
  color: var(--electron-400);
}

.page-contact .panel--route .co-head__sub {
  color: var(--co-dim);
}

/* ---------- 首屏 ---------- */
.page-contact .co-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(64px, 9vw, 128px) clamp(52px, 7vw, 96px);
}

.page-contact .co-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(114deg, transparent 0 58%, rgba(34, 211, 208, 0.07) 58% 58.25%, transparent 58.25%),
    linear-gradient(114deg, transparent 0 72%, rgba(255, 90, 31, 0.08) 72% 72.22%, transparent 72.22%),
    radial-gradient(90% 70% at 88% 12%, rgba(27, 58, 107, 0.5), transparent 70%);
}

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

.page-contact .co-hero .breadcrumb {
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-contact .co-hero__grid {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
  grid-template-columns: 1fr;
}

.page-contact .co-hero__title {
  margin: 0 0 20px;
  font-size: clamp(36px, 7vw, 88px);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--board-050);
}

.page-contact .co-hero__title br {
  display: none;
}

@media (min-width: 700px) {
  .page-contact .co-hero__title br {
    display: block;
  }
}

.page-contact .co-hero__lede {
  margin: 0 0 28px;
  max-width: 36em;
  font-size: clamp(16px, 1.3vw, 18px);
  line-height: 1.85;
  color: var(--haze-400);
}

.page-contact .co-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .co-hero__aside {
  align-self: end;
  padding: clamp(22px, 2.6vw, 32px);
  border-radius: var(--radius);
  border: 1px solid var(--glass-line);
  backdrop-filter: blur(8px);
  box-shadow: inset 0 1px 0 rgba(244, 247, 250, 0.1);
}

.page-contact .co-hero__aside-title {
  margin: 0 0 18px;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--electron-400);
}

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

.page-contact .co-quick li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  font-size: 15px;
  line-height: 1.75;
  color: var(--board-050);
}

.page-contact .co-quick .mono {
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.1em;
  color: var(--signal-500);
}

.page-contact .co-hero__aside-foot {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--glass-line);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--haze-400);
}

@media (min-width: 900px) {
  .page-contact .co-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
}

/* ---------- 三步流程 ---------- */
.page-contact .co-start {
  padding-block: clamp(56px, 7vw, 96px);
}

.page-contact .co-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--steel-600);
  border: 1px solid var(--steel-600);
}

.page-contact .co-step {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: clamp(24px, 3vw, 38px);
  background: var(--graphite-900);
  transition: background var(--t-base) var(--ease);
}

.page-contact .co-step:hover,
.page-contact .co-step:focus-within {
  background: var(--route-700);
}

.page-contact .co-step__no {
  font-size: clamp(38px, 5vw, 62px);
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--signal-500);
}

.page-contact .co-step__title {
  margin: 0;
  font-size: clamp(19px, 2vw, 23px);
  line-height: 1.35;
  font-weight: 700;
  color: var(--board-050);
}

.page-contact .co-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--haze-400);
}

.page-contact .co-step__meta {
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--electron-400);
}

@media (min-width: 860px) {
  .page-contact .co-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 需求信息清单 ---------- */
.page-contact .co-brief {
  padding-block: clamp(56px, 7vw, 96px);
}

.page-contact .co-brief__grid {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
  grid-template-columns: 1fr;
}

.page-contact .co-brief__list {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--co-line-light);
}

.page-contact .co-brief__item {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--co-line-light);
}

.page-contact .co-brief__item dt {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink-800);
}

.page-contact .co-brief__item dt::before {
  content: "";
  flex: none;
  width: 16px;
  height: 2px;
  margin-top: 11px;
  background: var(--signal-500);
}

.page-contact .co-brief__item dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel-600);
}

@media (min-width: 640px) {
  .page-contact .co-brief__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 3vw, 48px);
  }
}

@media (min-width: 980px) {
  .page-contact .co-brief__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-contact .co-brief__grid .co-head {
    margin-bottom: 0;
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }
}

/* ---------- 渠道 ---------- */
.page-contact .co-channels {
  padding-block: clamp(56px, 7vw, 96px);
}

.page-contact .co-channels__figure {
  margin: 0 0 clamp(26px, 3.5vw, 44px);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .co-channels__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-contact .co-channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2vw, 22px);
}

.page-contact .co-channel {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: clamp(22px, 2.6vw, 30px);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background: var(--glass-100);
  transition: transform var(--t-base) var(--ease),
    border-color var(--t-base) var(--ease),
    background var(--t-base) var(--ease);
}

.page-contact .co-channel:hover,
.page-contact .co-channel:focus-within {
  transform: translateY(-2px);
  border-color: var(--electron-400);
  background: rgba(244, 247, 250, 0.12);
}

.page-contact .co-channel__icon {
  width: 34px;
  height: 34px;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.4;
}

.page-contact .co-channel:nth-child(1) .co-channel__icon {
  stroke: var(--electron-400);
}

.page-contact .co-channel:nth-child(2) .co-channel__icon {
  stroke: var(--signal-500);
}

.page-contact .co-channel:nth-child(3) .co-channel__icon {
  stroke: var(--haze-400);
}

.page-contact .co-channel__title {
  margin: 0;
  font-size: 20px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--board-050);
}

.page-contact .co-channel__use {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--haze-400);
}

.page-contact .co-channel__value {
  margin: 4px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--signal-500);
  font-size: 14px;
  line-height: 1.6;
  color: var(--board-050);
  word-break: break-all;
}

.page-contact .co-channel__copy,
.page-contact .co-channel__link {
  justify-self: start;
  margin-top: 4px;
}

.page-contact .co-channel__copy {
  font-size: 13px;
  padding: 8px 14px;
}

.page-contact .co-channel__meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--electron-400);
}

@media (min-width: 800px) {
  .page-contact .co-channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 服务区域 ---------- */
.page-contact .co-region {
  padding-block: clamp(56px, 7vw, 96px);
}

.page-contact .co-region__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .co-region__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 32px);
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-contact .co-stat {
  display: grid;
  gap: 8px;
  padding-top: 16px;
  border-top: 2px solid var(--electron-400);
}

.page-contact .co-stat__num {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--board-050);
}

.page-contact .co-stat__label {
  font-size: 14px;
  line-height: 1.7;
  color: var(--co-dim);
}

.page-contact .co-region__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(244, 247, 250, 0.18);
  border-top: 1px solid rgba(244, 247, 250, 0.18);
  border-bottom: 1px solid rgba(244, 247, 250, 0.18);
}

.page-contact .co-region__list li {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  background: var(--route-700);
}

.page-contact .co-region__list h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--board-050);
}

.page-contact .co-region__list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--co-dim);
}

@media (min-width: 960px) {
  .page-contact .co-region__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .co-region__grid .co-head {
    margin-bottom: 0;
  }
}

/* ---------- 合作场景 ---------- */
.page-contact .co-scenes {
  padding-block: clamp(56px, 7vw, 96px);
}

.page-contact .co-scene-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--co-line-light);
  border: 1px solid var(--co-line-light);
}

.page-contact .co-scene {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(22px, 2.6vw, 30px);
  background: var(--board-050);
  transition: background var(--t-base) var(--ease);
}

.page-contact .co-scene:hover,
.page-contact .co-scene:focus-within {
  background: #ffffff;
}

.page-contact .co-scene h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.45;
  font-weight: 700;
  color: var(--ink-800);
}

.page-contact .co-scene p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel-600);
}

.page-contact .co-scene a {
  justify-self: start;
  margin-top: 4px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--route-700);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-contact .co-scene a:hover,
.page-contact .co-scene a:focus-visible {
  color: var(--signal-600);
  border-bottom-color: var(--signal-600);
}

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

@media (min-width: 1120px) {
  .page-contact .co-scene-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 联系方式 ---------- */
.page-contact .co-contact {
  padding-block: clamp(56px, 7vw, 96px);
}

.page-contact .co-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
}

.page-contact .co-contact__lede {
  margin: 18px 0 26px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--haze-400);
}

.page-contact .co-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--co-line-dark);
}

.page-contact .co-contact__list li {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--co-line-dark);
}

.page-contact .co-contact__label {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--haze-400);
}

.page-contact .co-contact__value {
  font-size: 15px;
  line-height: 1.7;
  color: var(--board-050);
  word-break: break-all;
}

.page-contact .co-contact__list .copy-btn {
  justify-self: start;
  font-size: 13px;
  padding: 8px 14px;
}

.page-contact .co-contact__note {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--haze-400);
}

.page-contact .co-contact__figure {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-contact .co-contact__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
}

.page-contact .co-contact__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(160deg, rgba(5, 11, 24, 0.06), rgba(27, 58, 107, 0.48));
}

.page-contact .co-contact__frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

@media (min-width: 640px) {
  .page-contact .co-contact__list li {
    grid-template-columns: 108px minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px;
  }
}

@media (min-width: 940px) {
  .page-contact .co-contact__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

/* ---------- 移动端固定入口 ---------- */
.page-contact .co-sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  display: flex;
  justify-content: center;
  padding: 12px var(--gutter);
  background: rgba(14, 19, 25, 0.94);
  border-top: 1px solid var(--glass-line);
  backdrop-filter: blur(10px);
}

.page-contact .co-sticky-cta .btn {
  width: 100%;
  max-width: 420px;
}

@media (max-width: 899px) {
  .page-contact {
    padding-bottom: 78px;
  }
}

@media (min-width: 900px) {
  .page-contact .co-sticky-cta {
    display: none;
  }
}

/* ---------- 图片与媒体兜底 ---------- */
.page-contact img {
  max-width: 100%;
  height: auto;
}

.page-contact .media-caption {
  font-size: 13px;
  line-height: 1.7;
  color: var(--haze-400);
}

.page-contact .panel--board .media-caption {
  color: var(--steel-600);
}