.page-contact {
  --pc-line: rgba(168, 179, 189, 0.26);
  color: var(--ice);
  padding-bottom: clamp(46px, 7vw, 96px);
  overflow-x: clip;
}

.page-contact .breadcrumb {
  margin-block: 18px 0;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-intro {
  position: relative;
  margin-top: 14px;
  padding-block: clamp(26px, 5vw, 54px);
  background: linear-gradient(155deg, var(--ink-2) 0%, var(--ink) 58%, var(--ink-deep) 100%);
  border-block: var(--bw) solid var(--graphite);
  overflow: hidden;
}

.page-contact .pc-intro::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(103deg, rgba(234, 240, 243, 0.045) 0 2px, transparent 2px 10px);
  pointer-events: none;
}

.page-contact .pc-intro__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(18px, 3vw, 30px);
}

.page-contact .pc-intro__text {
  min-width: 0;
}

.page-contact .pc-intro h1 {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(28px, 6vw, 54px);
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--ice);
}

.page-contact .pc-intro__lede {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: #c9d4dc;
}

.page-contact .pc-intro__note {
  align-self: start;
  padding: 18px 20px;
  background: rgba(16, 42, 67, 0.78);
  border: var(--bw) solid var(--archive);
  border-left-width: 8px;
  box-shadow: 6px 6px 0 rgba(7, 19, 32, 0.65);
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .pc-intro__note p {
  margin: 0;
}

.page-contact .pc-intro__note-kicker {
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-contact .pc-intro__note-time {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--green);
}

/* ---------- 联系渠道 + 流程 ---------- */
.page-contact .pc-channels {
  padding-block: clamp(30px, 5vw, 62px);
}

.page-contact .pc-channels__grid {
  display: grid;
  gap: clamp(20px, 3.4vw, 34px);
  align-items: start;
}

.page-contact .channel-board {
  min-width: 0;
  padding: clamp(20px, 3vw, 34px);
  background: var(--ink-2);
  border: var(--bw) solid var(--graphite);
  box-shadow: var(--shadow-hard);
}

.page-contact .channel-board__title {
  margin: 0 0 clamp(16px, 2vw, 22px);
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.6vw, 26px);
  color: var(--ice);
}

.page-contact .channel-board__item {
  display: grid;
  justify-items: start;
  gap: 9px;
  min-width: 0;
}

.page-contact .channel-board__item + .channel-board__item {
  margin-top: clamp(18px, 2.4vw, 26px);
  padding-top: clamp(18px, 2.4vw, 26px);
  border-top: 2px dashed var(--pc-line);
}

.page-contact .channel-board__label {
  margin: 0;
  font-family: var(--font-cond);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-contact .channel-board__value {
  min-width: 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 3.8vw, 27px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--green);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 2px dashed rgba(46, 230, 166, 0.42);
  padding-bottom: 3px;
  transition: color 180ms ease, border-color 180ms ease;
}

.page-contact .channel-board__value:hover,
.page-contact .channel-board__value:focus-visible {
  color: var(--mint);
  border-color: var(--mint);
}

.page-contact .channel-board__value--tel {
  color: var(--orange);
  border-bottom-color: rgba(255, 122, 26, 0.45);
}

.page-contact .channel-board__value--tel:hover,
.page-contact .channel-board__value--tel:focus-visible {
  color: #ffa25c;
  border-color: #ffa25c;
}

.page-contact .channel-board__hint {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .pc-copy {
  min-height: 34px;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ice);
  background: transparent;
  border: 2px solid var(--graphite);
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.page-contact .pc-copy:hover,
.page-contact .pc-copy:focus-visible {
  background: var(--green);
  border-color: var(--green);
  color: var(--ink-deep);
}

/* 流程树 */
.page-contact .flow {
  min-width: 0;
  padding: clamp(18px, 3vw, 28px);
  background: rgba(16, 42, 67, 0.55);
  border: var(--bw) solid var(--graphite);
}

.page-contact .flow__title {
  margin: 0 0 clamp(16px, 2vw, 22px);
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.6vw, 26px);
  color: var(--ice);
}

.page-contact .flow__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-contact .flow__step {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-contact .flow__step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 44px;
  bottom: -18px;
  width: 2px;
  background: linear-gradient(180deg, var(--archive), rgba(31, 78, 121, 0.1));
}

.page-contact .flow__num {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--orange);
  background: var(--ink-deep);
  border: 2px solid var(--graphite);
}

.page-contact .flow__body {
  min-width: 0;
  padding-top: 4px;
}

.page-contact .flow__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ice);
}

.page-contact .flow__body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--silver);
}

/* 图片容器 */
.page-contact .pc-figure {
  margin: 0;
  min-width: 0;
  border: var(--bw) solid var(--graphite);
  box-shadow: var(--shadow-hard);
  background: var(--ink-2);
  overflow: hidden;
}

.page-contact .pc-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .pc-figure--flow {
  margin-top: clamp(20px, 2.6vw, 26px);
}

/* ---------- 时段与响应 ---------- */
.page-contact .pc-response {
  padding-block: clamp(30px, 5vw, 62px);
  border-top: var(--bw) dashed var(--graphite);
  border-bottom: var(--bw) dashed var(--graphite);
  background: linear-gradient(180deg, rgba(16, 42, 67, 0.42), transparent 70%);
}

.page-contact .pc-response__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  align-items: center;
}

.page-contact .pc-response__text {
  min-width: 0;
}

.page-contact .pc-response h2 {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.25;
  color: var(--ice);
}

.page-contact .pc-response__lede {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: #c2cdd5;
}

.page-contact .pc-response__facts {
  margin: clamp(18px, 2.4vw, 24px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .pc-response__facts li {
  padding-left: 14px;
  border-left: 3px solid var(--green);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ice);
}

.page-contact .pc-response__facts li:nth-child(2) {
  border-left-color: var(--orange);
}

.page-contact .pc-response__facts li:nth-child(3) {
  border-left-color: var(--archive);
}

.page-contact .pc-timebar {
  margin-top: clamp(18px, 2.6vw, 26px);
  display: grid;
  gap: 8px;
}

.page-contact .pc-timebar__track {
  position: relative;
  height: 12px;
  background: rgba(47, 62, 78, 0.55);
  border: 2px solid var(--graphite);
}

.page-contact .pc-timebar__fill {
  position: absolute;
  inset: 0 24% 0 0;
  background: linear-gradient(90deg, var(--archive), var(--green));
}

.page-contact .pc-timebar__scale {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--silver);
}

/* ---------- 咨询范围 ---------- */
.page-contact .pc-scope {
  padding-block: clamp(30px, 5vw, 62px);
}

.page-contact .pc-scope__head {
  max-width: 68ch;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-contact .pc-scope__head h2 {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.28;
  color: var(--ice);
}

.page-contact .pc-scope__lede {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .pc-scope__grid {
  display: grid;
  gap: 14px;
}

.page-contact .req-item {
  background: var(--ink-2);
  border: var(--bw) solid var(--graphite);
  box-shadow: 5px 5px 0 rgba(7, 19, 32, 0.7);
  min-width: 0;
}

.page-contact .req-item[open] {
  border-color: var(--archive);
}

.page-contact .req-item__head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

.page-contact .req-item__head::-webkit-details-marker {
  display: none;
}

.page-contact .req-item__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-contact .req-item__title {
  flex: 1 1 auto;
  min-width: 0;
  display: grid;
  gap: 4px;
}

.page-contact .req-item__name {
  font-family: var(--font-sans);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ice);
}

.page-contact .req-item__hint {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--silver);
}

.page-contact .req-item__plus {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
}

.page-contact .req-item__plus::before,
.page-contact .req-item__plus::after {
  content: "";
  position: absolute;
  background: var(--green);
  transition: transform 200ms ease, opacity 200ms ease;
}

.page-contact .req-item__plus::before {
  left: 0;
  top: 8px;
  width: 18px;
  height: 2px;
}

.page-contact .req-item__plus::after {
  left: 8px;
  top: 0;
  width: 2px;
  height: 18px;
}

.page-contact .req-item[open] .req-item__plus::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-contact .req-item__body {
  padding: 0 18px 18px;
  border-top: 2px dashed var(--pc-line);
  margin-top: 2px;
  padding-top: 14px;
}

.page-contact .req-item__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: #c2cdd5;
}

.page-contact .req-item__body p + p {
  margin-top: 9px;
}

/* ---------- 合作 ---------- */
.page-contact .pc-coop {
  padding-block: clamp(30px, 5vw, 62px);
  background: linear-gradient(200deg, rgba(31, 78, 121, 0.28), transparent 62%);
  border-top: var(--bw) solid var(--graphite);
}

.page-contact .pc-coop__head {
  max-width: 66ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-contact .pc-coop__head h2 {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.28;
  color: var(--ice);
}

.page-contact .pc-coop__lede {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .pc-coop__grid {
  display: grid;
  gap: 16px;
}

.page-contact .coop-card {
  min-width: 0;
  padding: clamp(18px, 2.6vw, 26px);
  display: grid;
  gap: 10px;
  align-content: start;
  background: var(--ink-2);
  border: 3px solid var(--graphite);
  border-top-width: 8px;
  box-shadow: 6px 6px 0 rgba(7, 19, 32, 0.72);
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.page-contact .coop-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 9px 9px 0 rgba(7, 19, 32, 0.8);
}

.page-contact .coop-card:nth-child(1) {
  border-top-color: var(--green);
}

.page-contact .coop-card:nth-child(2) {
  border-top-color: var(--archive);
}

.page-contact .coop-card:nth-child(3) {
  border-top-color: var(--orange);
}

.page-contact .coop-card__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-contact .coop-card h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.3vw, 22px);
  line-height: 1.4;
  color: var(--ice);
}

.page-contact .coop-card > p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .coop-card__list {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
  border-top: 2px dashed var(--pc-line);
  padding-top: 12px;
}

.page-contact .coop-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ice);
}

.page-contact .coop-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--mint);
}

/* ---------- 地址与延伸入口 ---------- */
.page-contact .pc-address {
  padding-block: clamp(30px, 5vw, 62px) 0;
}

.page-contact .pc-address__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

.page-contact .pc-address__card {
  min-width: 0;
  padding: clamp(20px, 3vw, 32px);
  background: linear-gradient(180deg, rgba(31, 78, 121, 0.38), rgba(10, 27, 42, 0.92));
  border: var(--bw) solid var(--graphite);
  box-shadow: var(--shadow-hard);
}

.page-contact .pc-address__card h2 {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(21px, 3vw, 28px);
  color: var(--ice);
}

.page-contact .pc-address__line {
  margin: 14px 0 0;
  padding: 12px 14px;
  background: rgba(7, 19, 32, 0.6);
  border-left: 4px solid var(--orange);
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ice);
  overflow-wrap: anywhere;
}

.page-contact .pc-address__meta {
  margin: clamp(16px, 2.2vw, 22px) 0 0;
  display: grid;
  gap: 10px;
}

.page-contact .pc-address__meta > div {
  display: grid;
  gap: 3px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--pc-line);
}

.page-contact .pc-address__meta dt {
  font-family: var(--font-cond);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-contact .pc-address__meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--mint);
  overflow-wrap: anywhere;
}

.page-contact .pc-address__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .pc-links {
  min-width: 0;
  padding: clamp(18px, 2.6vw, 26px);
  border: var(--bw) solid var(--graphite);
  background: rgba(16, 42, 67, 0.5);
}

.page-contact .pc-links__title {
  margin: 0 0 14px;
  font-family: var(--font-cond);
  font-size: 14px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver);
}

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

.page-contact .pc-links__list a {
  display: grid;
  gap: 3px;
  padding: 11px 0 11px 18px;
  position: relative;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px dashed var(--pc-line);
  transition: color 180ms ease, border-color 180ms ease;
}

.page-contact .pc-links__list a::before {
  content: "›";
  position: absolute;
  left: 2px;
  top: 10px;
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-contact .pc-links__list a span {
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--silver);
}

.page-contact .pc-links__list a:hover,
.page-contact .pc-links__list a:focus-visible {
  color: var(--green);
  border-color: rgba(46, 230, 166, 0.5);
}

/* ---------- 桌面版 ---------- */
@media (min-width: 860px) {
  .page-contact .pc-intro__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(260px, 1fr);
    align-items: end;
  }

  .page-contact .pc-channels__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: clamp(26px, 3.6vw, 46px);
  }

  .page-contact .pc-response__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  }

  .page-contact .pc-scope__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .pc-coop__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
  }

  .page-contact .coop-card--b {
    transform: translateY(22px);
  }

  .page-contact .coop-card--b:hover {
    transform: translate(-2px, 20px);
  }

  .page-contact .coop-card--c {
    transform: translateY(-10px);
  }

  .page-contact .coop-card--c:hover {
    transform: translate(-2px, -12px);
  }

  .page-contact .pc-address__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 1fr);
    gap: clamp(24px, 3.4vw, 42px);
  }
}

@media (min-width: 1180px) {
  .page-contact .pc-scope__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 24px;
  }

  .page-contact .req-item:nth-child(even) {
    transform: translateY(16px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-card,
  .page-contact .coop-card:hover,
  .page-contact .req-item:nth-child(even),
  .page-contact .coop-card--b,
  .page-contact .coop-card--c,
  .page-contact .channel-board__value,
  .page-contact .pc-copy,
  .page-contact .pc-links__list a,
  .page-contact .req-item__plus::before,
  .page-contact .req-item__plus::after {
    transition: none;
    transform: none;
  }
}</main>