/* ===== 合作洽谈 /contact ===== */

.page-contact {
  --ct-line: rgba(59, 74, 87, .6);
  --ct-cream-line: rgba(15, 15, 15, .14);
  --ct-cream-body: #4B535C;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: var(--sp-5) 0 var(--sp-5);
  border-bottom: 1px solid var(--ct-line);
  background: linear-gradient(180deg, rgba(42, 42, 42, .6), rgba(30, 30, 30, 0) 78%);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: var(--sp-4);
  align-items: start;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(29px, 7vw, 52px);
  line-height: 1.12;
  letter-spacing: .005em;
  color: var(--c-silver);
  margin: var(--sp-2) 0 var(--sp-3);
  max-width: 17ch;
}

.page-contact .contact-hero__hl {
  display: block;
  color: var(--c-amber);
}

.page-contact .contact-hero__lede {
  max-width: 42ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--c-muted);
  margin: 0 0 var(--sp-4);
}

.page-contact .contact-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px var(--sp-4);
  list-style: none;
  margin: 0;
  padding: var(--sp-2) 0 0;
  border-top: 1px solid var(--ct-line);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--c-muted);
}

.page-contact .contact-hero__facts .mono {
  color: var(--c-amber);
  font-weight: 700;
  font-size: 15px;
}

.page-contact .contact-hero__figure {
  margin: 0;
}

@media (min-width: 940px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    gap: var(--sp-5);
    align-items: center;
  }
}

/* ---------- 区块通用 ---------- */

.page-contact .section__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.22;
  letter-spacing: .01em;
  color: var(--c-silver);
  margin: var(--sp-1) 0 var(--sp-2);
  max-width: 22ch;
}

.page-contact .section .lede {
  max-width: 52ch;
}

.page-contact .sub-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--c-silver);
  margin: var(--sp-5) 0 var(--sp-2);
}

.page-contact .section-foot {
  margin: var(--sp-3) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-contact .section-foot a,
.page-contact .panel-foot a {
  color: var(--c-amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 0, .5);
}

.page-contact .section-foot a:hover,
.page-contact .panel-foot a:hover {
  border-bottom-color: var(--c-amber-hi);
  color: var(--c-amber-hi);
}

.page-contact .section--cream .section__title {
  color: var(--c-ink);
}

.page-contact .section--cream .eyebrow {
  color: #A34E00;
}

.page-contact .section--cream .lede,
.page-contact .section--cream .section-foot {
  color: var(--ct-cream-body);
}

.page-contact .section--cream .section-foot a {
  color: #A34E00;
  border-bottom-color: rgba(163, 78, 0, .45);
}

.page-contact .section--cream .section-foot a:hover {
  color: var(--c-amber);
  border-bottom-color: var(--c-amber);
}

/* ---------- 沟通路径切换台 ---------- */

.page-contact .switchboard {
  position: relative;
  display: grid;
  margin-top: var(--sp-4);
  border: 1px solid var(--ct-line);
  background: rgba(42, 42, 42, .55);
}

.page-contact .switchboard__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .switchboard__rail {
  display: flex;
  flex-direction: row;
  overflow-x: auto;
  border-bottom: 1px solid var(--ct-line);
  -webkit-overflow-scrolling: touch;
}

.page-contact .path-tab {
  position: relative;
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 186px;
  padding: 16px 18px 16px 22px;
  border-right: 1px solid var(--ct-line);
  color: var(--c-muted);
  cursor: pointer;
  transition: color .18s ease, background-color .18s ease;
}

.page-contact .path-tab::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background-color .18s ease;
}

.page-contact .path-tab__num {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-grid);
  transition: color .18s ease;
}

.page-contact .path-tab__title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.page-contact .path-tab__hint {
  font-size: 12px;
  line-height: 1.5;
  opacity: .82;
}

.page-contact .path-tab:hover {
  color: var(--c-silver);
  background: rgba(59, 74, 87, .22);
}

.page-contact #path-spec:checked ~ .switchboard__rail [for="path-spec"],
.page-contact #path-bulk:checked ~ .switchboard__rail [for="path-bulk"],
.page-contact #path-partner:checked ~ .switchboard__rail [for="path-partner"],
.page-contact #path-after:checked ~ .switchboard__rail [for="path-after"] {
  color: var(--c-silver);
  background: rgba(255, 122, 0, .09);
}

.page-contact #path-spec:checked ~ .switchboard__rail [for="path-spec"]::before,
.page-contact #path-bulk:checked ~ .switchboard__rail [for="path-bulk"]::before,
.page-contact #path-partner:checked ~ .switchboard__rail [for="path-partner"]::before,
.page-contact #path-after:checked ~ .switchboard__rail [for="path-after"]::before {
  background: var(--c-amber);
}

.page-contact #path-spec:checked ~ .switchboard__rail [for="path-spec"] .path-tab__num,
.page-contact #path-bulk:checked ~ .switchboard__rail [for="path-bulk"] .path-tab__num,
.page-contact #path-partner:checked ~ .switchboard__rail [for="path-partner"] .path-tab__num,
.page-contact #path-after:checked ~ .switchboard__rail [for="path-after"] .path-tab__num {
  color: var(--c-amber);
}

.page-contact .switchboard__panel {
  display: none;
  padding: var(--sp-4) var(--sp-3);
}

.page-contact #path-spec:checked ~ .switchboard__panel[data-panel="spec"],
.page-contact #path-bulk:checked ~ .switchboard__panel[data-panel="bulk"],
.page-contact #path-partner:checked ~ .switchboard__panel[data-panel="partner"],
.page-contact #path-after:checked ~ .switchboard__panel[data-panel="after"] {
  display: block;
}

.page-contact .panel-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--c-silver);
  margin: 0 0 var(--sp-1);
}

.page-contact .panel-lede {
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.82;
  color: var(--c-muted);
  margin: 0 0 var(--sp-3);
  max-width: 46ch;
}

.page-contact .checklist {
  list-style: none;
  margin: 0 0 var(--sp-3);
  padding: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .checklist li {
  position: relative;
  padding: 11px 0 11px 22px;
  border-bottom: 1px solid var(--ct-line);
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--c-silver);
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 10px;
  height: 2px;
  background: var(--c-amber);
}

.page-contact .panel-foot {
  margin: 0;
  padding-top: var(--sp-2);
  border-top: 1px dashed var(--ct-line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-muted);
}

@media (min-width: 880px) {
  .page-contact .switchboard {
    grid-template-columns: 268px minmax(0, 1fr);
  }

  .page-contact .switchboard__rail {
    flex-direction: column;
    overflow: visible;
    border-bottom: 0;
    border-right: 1px solid var(--ct-line);
  }

  .page-contact .path-tab {
    min-width: 0;
    border-right: 0;
    border-bottom: 1px solid var(--ct-line);
    padding: 20px 18px 20px 24px;
  }

  .page-contact .path-tab:last-child {
    border-bottom: 0;
  }

  .page-contact .switchboard__panel {
    padding: var(--sp-4) var(--sp-4);
  }
}

/* ---------- 准备材料清单 ---------- */

.page-contact .prep-list {
  list-style: none;
  margin: var(--sp-4) 0 0;
  padding: 0;
  border-top: 1px solid var(--ct-cream-line);
}

.page-contact .prep-item {
  position: relative;
  border-bottom: 1px solid var(--ct-cream-line);
}

.page-contact .prep-item__box {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .prep-item__label {
  display: grid;
  grid-template-columns: 18px 30px minmax(0, 1fr);
  gap: 0 12px;
  align-items: start;
  padding: 16px 2px;
  cursor: pointer;
}

.page-contact .prep-item__tick {
  position: relative;
  display: block;
  width: 16px;
  height: 16px;
  margin-top: 3px;
  border: 1px solid rgba(15, 15, 15, .38);
  background: transparent;
  transition: background-color .15s ease, border-color .15s ease;
}

.page-contact .prep-item__box:checked ~ .prep-item__label .prep-item__tick {
  background: var(--c-amber);
  border-color: var(--c-amber);
}

.page-contact .prep-item__box:checked ~ .prep-item__label .prep-item__tick::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border-right: 2px solid #1E1E1E;
  border-bottom: 2px solid #1E1E1E;
  transform: rotate(40deg);
}

.page-contact .prep-item__box:focus-visible ~ .prep-item__label .prep-item__tick {
  outline: 2px solid var(--c-amber);
  outline-offset: 2px;
}

.page-contact .prep-item__num {
  font-size: 12px;
  letter-spacing: .12em;
  color: #A34E00;
  padding-top: 4px;
}

.page-contact .prep-item__text {
  display: block;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ct-cream-body);
}

.page-contact .prep-item__text b {
  display: block;
  margin-bottom: 3px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-contact .prep-item__label:hover .prep-item__text b {
  color: #A34E00;
}

@media (min-width: 720px) {
  .page-contact .prep-item__label {
    grid-template-columns: 18px 40px minmax(0, 1fr);
    gap: 0 16px;
    padding: 18px 2px;
  }

  .page-contact .prep-item__text {
    display: grid;
    grid-template-columns: minmax(0, 210px) minmax(0, 1fr);
    gap: 0 20px;
    align-items: baseline;
  }

  .page-contact .prep-item__text b {
    margin-bottom: 0;
  }
}

/* ---------- 供货分档表 ---------- */

.page-contact .table-scroll {
  margin-top: var(--sp-4);
  overflow-x: auto;
  border: 1px solid var(--ct-line);
  -webkit-overflow-scrolling: touch;
}

.page-contact .data-table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-contact .data-table th {
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-amber);
  background: rgba(255, 122, 0, .07);
  border-bottom: 1px solid var(--ct-line);
  white-space: nowrap;
}

.page-contact .data-table td {
  padding: 14px;
  color: var(--c-silver);
  border-bottom: 1px solid var(--ct-line);
  vertical-align: middle;
  line-height: 1.6;
}

.page-contact .data-table tbody tr:nth-child(even) td {
  background: rgba(59, 74, 87, .13);
}

.page-contact .data-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-contact .data-table td.mono {
  color: var(--c-amber-hi);
  font-size: 13.5px;
  white-space: nowrap;
}

.page-contact .data-table .dot {
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
}

.page-contact .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .step-list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 0;
  border-bottom: 1px solid var(--ct-line);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-silver);
}

.page-contact .step-list__num {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-amber);
  padding-top: 4px;
}

/* ---------- 区域合作 ---------- */

.page-contact .split-2 {
  display: grid;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}

.page-contact .split-col {
  padding: var(--sp-3);
  border: 1px solid var(--ct-line);
  border-top: 3px solid var(--c-amber);
  background: rgba(30, 30, 30, .45);
}

.page-contact .split-col__title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--c-amber);
  margin: 0 0 var(--sp-2);
}

.page-contact .tick-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .tick-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-silver);
}

.page-contact .tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 11px;
  height: 1px;
  background: var(--c-amber);
}

.page-contact .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--ct-line);
}

.page-contact .flow-node {
  position: relative;
  display: grid;
  gap: 3px;
  padding: 14px 0 14px 24px;
}

.page-contact .flow-node::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 21px;
  width: 10px;
  height: 10px;
  background: var(--c-graphite);
  border: 2px solid var(--c-amber);
  transform: rotate(45deg);
}

.page-contact .flow-node__num {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-amber);
}

.page-contact .flow-node__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-silver);
}

.page-contact .flow-node__desc {
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--c-muted);
  max-width: 48ch;
}

@media (min-width: 760px) {
  .page-contact .split-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-4);
  }

  .page-contact .flow-list {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 var(--sp-3);
    border-left: 0;
    border-top: 2px solid var(--ct-line);
    padding-top: var(--sp-2);
  }

  .page-contact .flow-node {
    padding: 16px 0 0 0;
  }

  .page-contact .flow-node::before {
    left: 0;
    top: -7px;
  }
}

/* ---------- 售后与保修 ---------- */

.page-contact .as-grid {
  display: grid;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}

.page-contact .as-card {
  padding: var(--sp-3);
  border: 1px solid var(--ct-cream-line);
  border-left: 3px solid var(--c-amber);
  background: #FFFFFF;
}

.page-contact .as-card__title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--c-ink);
  margin: 0 0 8px;
}

.page-contact .as-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ct-cream-body);
}

@media (min-width: 780px) {
  .page-contact .as-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 联系信息带 ---------- */

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

.page-contact .reach-band {
  display: grid;
  margin-top: var(--sp-3);
}

.page-contact .reach-cell {
  padding: 15px 0 15px 14px;
  border-bottom: 1px solid var(--ct-line);
  border-left: 2px solid rgba(255, 122, 0, .55);
}

.page-contact .reach-cell__label {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-muted);
}

.page-contact .reach-cell__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(16px, 4.4vw, 26px);
  line-height: 1.3;
  color: var(--c-amber);
  word-break: break-word;
}

.page-contact .reach-cell__value--addr {
  font-family: var(--font-body);
  font-size: clamp(14px, 3.2vw, 18px);
  font-weight: 500;
  color: var(--c-silver);
  line-height: 1.6;
  letter-spacing: .01em;
}

.page-contact .reach-note {
  margin: var(--sp-3) 0 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-muted);
}

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

@media (min-width: 760px) {
  .page-contact .reach-band {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 0 var(--sp-3);
  }

  .page-contact .reach-cell {
    padding: 2px 0 2px 18px;
    border-bottom: 0;
  }
}

@media (min-width: 960px) {
  .page-contact .reach-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: var(--sp-5);
    align-items: start;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-contact .path-tab,
  .page-contact .path-tab::before,
  .page-contact .path-tab__num,
  .page-contact .prep-item__tick {
    transition: none;
  }
}