.page-contact {
  --pc-tick: rgba(166, 179, 201, 0.14);
  --pc-panel-bg: linear-gradient(165deg, rgba(42, 51, 70, 0.94), rgba(27, 31, 42, 0.96));
  position: relative;
  padding-bottom: 80px;
}

.page-contact::before {
  content: "";
  display: block;
  height: 6px;
  background-image: repeating-linear-gradient(90deg, var(--huohu-orange) 0 3px, rgba(255, 106, 26, 0) 3px 24px);
  -webkit-mask-image: linear-gradient(90deg, #000 0%, #000 58%, transparent 100%);
  mask-image: linear-gradient(90deg, #000 0%, #000 58%, transparent 100%);
}

/* ---------- 首屏 ---------- */

.page-contact .coop-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink-bg-2);
  border-bottom: 1px solid var(--line);
}

.page-contact .coop-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(80% 120% at 88% 4%, rgba(255, 138, 61, 0.22), transparent 62%),
    radial-gradient(60% 90% at 4% 100%, rgba(47, 191, 155, 0.10), transparent 70%);
}

.page-contact .coop-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
  padding-top: 34px;
  padding-bottom: 44px;
}

.page-contact .coop-hero .breadcrumb {
  margin-bottom: 16px;
}

.page-contact .coop-hero h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 7.6vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 10px 0 18px;
  max-width: 14ch;
}

.page-contact .coop-hero .lead {
  max-width: 42ch;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 24px;
}

.page-contact .coop-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  list-style: none;
  margin: 30px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .coop-hero__facts li {
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-contact .coop-hero__facts .mono {
  color: var(--huohu-orange);
  font-size: 18px;
  margin-right: 6px;
}

.page-contact .coop-hero__media {
  margin: 0;
  border-radius: var(--radius-l);
  border: 1px solid var(--line-strong);
  overflow: hidden;
  background: var(--slate);
}

.page-contact .coop-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .coop-hero__media .media__caption {
  display: block;
  padding: 10px 16px 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
  background: rgba(16, 18, 24, 0.72);
}

/* ---------- 主副分栏 ---------- */

.page-contact .coop-split {
  display: grid;
  gap: 44px;
  padding-top: 56px;
}

.page-contact .coop-main {
  display: grid;
  gap: 56px;
  min-width: 0;
}

.page-contact .coop-aside {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.page-contact .coop-head {
  display: block;
  margin-bottom: 24px;
}

.page-contact .coop-h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(24px, 4.6vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 8px 0 12px;
  max-width: 22ch;
}

.page-contact .coop-sub {
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
  max-width: 58ch;
  margin: 0;
}

.page-contact .coop-sub a {
  color: var(--huohu-orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 合作类型切换 ---------- */

.page-contact .coop-switch {
  position: relative;
}

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

.page-contact .coop-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-contact .coop-chips .chip {
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--mist);
  background: rgba(42, 51, 70, 0.5);
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  -webkit-user-select: none;
  user-select: none;
}

.page-contact .coop-chips .chip:hover {
  color: var(--ink);
  border-color: var(--huohu-orange);
}

.page-contact #ct-1:checked ~ .coop-chips label[for="ct-1"],
.page-contact #ct-2:checked ~ .coop-chips label[for="ct-2"],
.page-contact #ct-3:checked ~ .coop-chips label[for="ct-3"],
.page-contact #ct-4:checked ~ .coop-chips label[for="ct-4"] {
  background: var(--huohu-orange);
  border-color: var(--huohu-orange);
  color: var(--ink-bg);
  font-weight: 600;
}

.page-contact #ct-1:focus-visible ~ .coop-chips label[for="ct-1"],
.page-contact #ct-2:focus-visible ~ .coop-chips label[for="ct-2"],
.page-contact #ct-3:focus-visible ~ .coop-chips label[for="ct-3"],
.page-contact #ct-4:focus-visible ~ .coop-chips label[for="ct-4"] {
  outline: 2px solid var(--huohu-orange);
  outline-offset: 3px;
}

.page-contact .coop-pane {
  display: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--pc-panel-bg);
  padding: 22px 18px 24px;
}

.page-contact #ct-1:checked ~ .coop-panes > .coop-pane:nth-child(1),
.page-contact #ct-2:checked ~ .coop-panes > .coop-pane:nth-child(2),
.page-contact #ct-3:checked ~ .coop-panes > .coop-pane:nth-child(3),
.page-contact #ct-4:checked ~ .coop-panes > .coop-pane:nth-child(4) {
  display: block;
}

.page-contact .coop-pane__fit {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--huohu-orange);
  border: 1px solid rgba(255, 106, 26, 0.4);
  border-radius: 999px;
  padding: 6px 13px;
  margin: 0 0 16px;
}

.page-contact .coop-pane > p {
  color: var(--ink);
  font-size: 15.5px;
  line-height: 1.85;
  margin: 0 0 14px;
}

.page-contact .coop-pane > p a {
  color: var(--huohu-orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .coop-pane__label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist) !important;
  margin: 20px 0 10px !important;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

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

.page-contact .coop-pane__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .coop-pane__list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--huohu-orange);
}

/* ---------- 四步流程 ---------- */

.page-contact .coop-flow__banner {
  margin: 0 0 30px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--slate);
}

.page-contact .coop-flow__banner img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-contact .flow-list {
  position: relative;
  display: grid;
  gap: 12px;
}

.page-contact .flow-list::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 26px;
  bottom: 26px;
  width: 1px;
  display: none;
  background: linear-gradient(180deg, var(--huohu-orange), rgba(166, 179, 201, 0.22));
}

.page-contact .flow-step {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(27, 31, 42, 0.55);
  overflow: hidden;
}

.page-contact .flow-step[open] {
  border-color: var(--line-strong);
  background: rgba(27, 31, 42, 0.82);
}

.page-contact .flow-step__dot {
  position: absolute;
  left: -41px;
  top: 21px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink-bg);
  border: 2px solid var(--huohu-orange);
  display: none;
}

.page-contact .flow-step--start .flow-step__dot {
  animation: pc-pulse 2.4s ease-in-out infinite;
}

@keyframes pc-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 106, 26, 0.5); }
  50% { box-shadow: 0 0 0 8px rgba(255, 106, 26, 0); }
}

.page-contact .flow-step__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-contact .flow-step__summary::-webkit-details-marker {
  display: none;
}

.page-contact .flow-step__num {
  font-size: 17px;
  color: var(--huohu-orange);
  letter-spacing: 0.04em;
  flex: 0 0 auto;
}

.page-contact .flow-step__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  color: var(--ink);
  flex: 1 1 auto;
}

.page-contact .flow-step__meta {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
  white-space: nowrap;
}

.page-contact .flow-step__body {
  padding: 0 18px 20px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .flow-step__body > p {
  margin: 0;
}

.page-contact .flow-step__detail {
  display: grid;
  gap: 14px;
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.page-contact .flow-step__detail dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--archive-teal);
  margin-bottom: 5px;
}

.page-contact .flow-step__detail dd {
  margin: 0;
  color: var(--ink);
  font-size: 14.5px;
  line-height: 1.75;
}

/* ---------- 右侧联系面板 ---------- */

.page-contact .contact-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-l);
  background: linear-gradient(165deg, rgba(42, 51, 70, 0.95), rgba(16, 18, 24, 0.98));
  padding: 24px 20px 26px;
}

.page-contact .contact-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--huohu-orange), var(--huohu-amber), transparent);
}

.page-contact .contact-panel__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.3;
  color: var(--ink);
  margin: 6px 0 14px;
}

.page-contact .contact-panel .contact-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-panel .contact-line__label {
  flex: 0 0 100%;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .contact-panel .contact-line__value {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--ink);
  word-break: break-all;
}

.page-contact .contact-panel .contact-line__value--addr {
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.75;
  word-break: normal;
}

.page-contact .contact-panel .code-chip {
  flex: 0 0 auto;
  margin-left: auto;
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-contact .contact-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 值守时段 ---------- */

.page-contact .duty-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(27, 31, 42, 0.72);
  padding: 20px 20px 22px;
}

.page-contact .duty-panel__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.35;
  color: var(--ink);
  margin: 6px 0 20px;
}

.page-contact .duty-bar {
  margin-bottom: 18px;
}

.page-contact .duty-bar__track {
  position: relative;
  height: 12px;
  border-radius: 999px;
  background: var(--pc-tick);
  background-color: var(--slate);
  overflow: hidden;
}

.page-contact .duty-bar__fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--huohu-orange), var(--huohu-amber));
  box-shadow: 0 0 16px rgba(255, 106, 26, 0.45);
}

.page-contact .duty-bar__scale {
  position: relative;
  height: 18px;
  margin-top: 8px;
}

.page-contact .duty-bar__tick {
  position: absolute;
  top: 0;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--mist);
  transform: translateX(-50%);
  white-space: nowrap;
}

.page-contact .duty-bar__tick--start {
  left: 0;
  transform: none;
}

.page-contact .duty-bar__tick--open {
  left: 37.5%;
  color: var(--huohu-orange);
}

.page-contact .duty-bar__tick--close {
  left: 75%;
  color: var(--huohu-orange);
}

.page-contact .duty-bar__tick--end {
  left: auto;
  right: 0;
  transform: none;
}

.page-contact .duty-panel__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 常见问答 ---------- */

.page-contact .coop-faq {
  margin-top: 70px;
  padding-top: 56px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(27, 31, 42, 0.6), transparent 62%);
}

.page-contact .coop-faq__grid {
  display: grid;
  gap: 12px;
}

.page-contact .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(16, 18, 24, 0.6);
  overflow: hidden;
}

.page-contact .faq-item[open] {
  border-color: rgba(255, 106, 26, 0.4);
}

.page-contact .faq-item > summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
}

.page-contact .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-contact .faq-item > summary::after {
  content: "＋";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--huohu-orange);
}

.page-contact .faq-item[open] > summary::after {
  content: "－";
}

.page-contact .faq-item > p {
  margin: 0;
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .faq-item > p a {
  color: var(--huohu-orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .flow-list {
    padding-left: 48px;
  }

  .page-contact .flow-list::before {
    display: block;
  }

  .page-contact .flow-step__dot {
    display: block;
  }

  .page-contact .coop-pane {
    padding: 26px 26px 28px;
  }

  .page-contact .contact-panel {
    padding: 28px 26px 30px;
  }

  .page-contact .duty-panel {
    padding: 24px 26px 26px;
  }
}

@media (min-width: 860px) {
  .page-contact .coop-faq__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 20px;
  }
}

@media (min-width: 900px) {
  .page-contact .coop-hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
    gap: 52px;
    padding-top: 60px;
    padding-bottom: 72px;
  }
}

@media (min-width: 1040px) {
  .page-contact .coop-split {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    padding-top: 68px;
  }

  .page-contact .coop-aside {
    position: sticky;
    top: 104px;
  }

  .page-contact .coop-main {
    gap: 68px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .flow-step--start .flow-step__dot {
    animation: none;
  }

  .page-contact .coop-chips .chip,
  .page-contact .coop-pane,
  .page-contact .flow-step {
    transition: none;
  }
}