.page-contact {
  --pc-cut: 14px;
  --pc-cut-s: 10px;
  padding-top: 8px;
}

.page-contact .breadcrumbs {
  padding-top: 12px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(18px, 3vw, 32px);
  padding-bottom: clamp(40px, 6vw, 72px);
  align-items: end;
}

.page-contact .contact-hero__text .eyebrow {
  margin: 0;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(40px, 8.4vw, 88px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  margin: 14px 0 20px;
  color: var(--c-white);
}

.page-contact .contact-hero .lead {
  max-width: 46ch;
  color: var(--c-gray);
  font-size: 16px;
  line-height: 1.8;
  margin: 0;
}

.page-contact .hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .hero-badges li {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-gray);
  border: 1px solid var(--c-line);
  background: var(--c-bg-1);
  padding: 7px 12px;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}

.page-contact .hero-badges .num {
  color: var(--c-lime);
  font-size: 13px;
  margin-right: 4px;
}

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

.page-contact .contact-hero__media {
  position: relative;
  overflow: hidden;
  background: linear-gradient(150deg, var(--c-bg-2), var(--c-bg));
  border: 1px solid var(--c-line);
  clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-contact .contact-caption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-gray);
  border-left: 2px solid var(--c-amber);
  padding-left: 10px;
}

/* ---------- 区块头 ---------- */
.page-contact .sec-head {
  max-width: 60ch;
  margin-bottom: clamp(22px, 3vw, 38px);
}

.page-contact .sec-head .h2 {
  margin: 8px 0 12px;
}

.page-contact .sec-head__sub {
  margin: 0;
  color: var(--c-gray);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 合作类型选择器 ---------- */
.page-contact .coop-tabs {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.page-contact .coop-tab {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 16px;
  text-decoration: none;
  color: var(--c-white);
  background: var(--c-bg-1);
  border: 1px solid var(--c-line);
  clip-path: polygon(var(--pc-cut-s) 0, 100% 0, 100% calc(100% - var(--pc-cut-s)), calc(100% - var(--pc-cut-s)) 100%, 0 100%, 0 var(--pc-cut-s));
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.page-contact .coop-tab:hover,
.page-contact .coop-tab:focus-visible {
  background: var(--c-bg-2);
  border-color: var(--c-teal);
  outline: none;
}

.page-contact .coop-tab__no {
  font-size: 12px;
  color: var(--c-amber);
  letter-spacing: 0.1em;
}

.page-contact .coop-tab__name {
  font-size: 14px;
  line-height: 1.4;
}

.page-contact .coop-picker:not(:has(.coop-panel:target)) .coop-tab:first-child,
.page-contact .coop-picker:has(#coop-supply:target) .coop-tab[href="#coop-supply"],
.page-contact .coop-picker:has(#coop-media:target) .coop-tab[href="#coop-media"],
.page-contact .coop-picker:has(#coop-api:target) .coop-tab[href="#coop-api"],
.page-contact .coop-picker:has(#coop-content:target) .coop-tab[href="#coop-content"] {
  background: var(--c-lime);
  border-color: var(--c-lime);
  color: var(--c-bg);
}

.page-contact .coop-picker:not(:has(.coop-panel:target)) .coop-tab:first-child .coop-tab__no,
.page-contact .coop-picker:has(#coop-supply:target) .coop-tab[href="#coop-supply"] .coop-tab__no,
.page-contact .coop-picker:has(#coop-media:target) .coop-tab[href="#coop-media"] .coop-tab__no,
.page-contact .coop-picker:has(#coop-api:target) .coop-tab[href="#coop-api"] .coop-tab__no,
.page-contact .coop-picker:has(#coop-content:target) .coop-tab[href="#coop-content"] .coop-tab__no {
  color: var(--c-teal);
}

.page-contact .coop-panel {
  display: none;
  scroll-margin-top: 150px;
  background: var(--c-bg-1);
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-lime);
  padding: clamp(20px, 3vw, 34px);
  clip-path: polygon(var(--pc-cut) 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%, 0 var(--pc-cut));
}

.page-contact .coop-panels > .coop-panel:first-child {
  display: block;
}

.page-contact .coop-panel:target {
  display: block;
}

.page-contact .coop-panels:has(> .coop-panel:target) > .coop-panel:first-child:not(:target) {
  display: none;
}

.page-contact .coop-panel__title {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.35;
  color: var(--c-white);
}

.page-contact .coop-panel__lead {
  margin: 0 0 24px;
  color: var(--c-gray);
  font-size: 15px;
  line-height: 1.75;
  max-width: 52ch;
}

.page-contact .coop-facts {
  display: grid;
  gap: 20px;
  margin: 0;
  padding-top: 22px;
  border-top: 1px solid var(--c-line);
}

.page-contact .coop-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-amber);
  margin-bottom: 8px;
}

.page-contact .coop-facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-white);
}

/* ---------- 流程 ---------- */
.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .flow__step {
  position: relative;
  background: var(--c-bg-2);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-teal);
  padding: 22px 20px 20px;
  clip-path: polygon(var(--pc-cut-s) 0, 100% 0, 100% calc(100% - var(--pc-cut-s)), calc(100% - var(--pc-cut-s)) 100%, 0 100%, 0 var(--pc-cut-s));
}

.page-contact .flow__no {
  display: block;
  font-size: 26px;
  line-height: 1;
  color: var(--c-lime);
  letter-spacing: 0.02em;
}

.page-contact .flow__title {
  margin: 14px 0 8px;
  font-size: 17px;
  color: var(--c-white);
}

.page-contact .flow__text {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-gray);
}

.page-contact .flow__time {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-amber);
  border: 1px solid var(--c-line);
  padding: 5px 9px;
}

/* ---------- 联系渠道 ---------- */
.page-contact .reach {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
}

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

.page-contact .reach__media {
  overflow: hidden;
  background: linear-gradient(200deg, var(--c-bg-2), var(--c-bg));
  border: 1px solid var(--c-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

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

.page-contact .reach__list {
  display: grid;
  gap: 4px;
  align-content: start;
}

.page-contact .reach__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .reach__row::before {
  content: "";
  flex: none;
  width: 26px;
  height: 2px;
  background: var(--c-amber);
  transform: translateY(-4px);
}

.page-contact .reach__label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-gray);
  width: 100%;
  padding-left: 44px;
}

.page-contact .reach__value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.4vw, 24px);
  line-height: 1.4;
  color: var(--c-white);
  overflow-wrap: anywhere;
  padding-left: 44px;
}

.page-contact .reach__value--addr {
  font-family: var(--font-body);
  font-size: clamp(14px, 1.5vw, 17px);
  line-height: 1.7;
  color: var(--c-white);
}

.page-contact .reach__note {
  margin: 20px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-gray);
  border-left: 2px solid var(--c-orange);
  padding-left: 12px;
}

/* ---------- 反馈材料清单 ---------- */
.page-contact .fb-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .fb-item {
  background: var(--c-bg-2);
  border: 1px solid var(--c-line);
  clip-path: polygon(var(--pc-cut-s) 0, 100% 0, 100% calc(100% - var(--pc-cut-s)), calc(100% - var(--pc-cut-s)) 100%, 0 100%, 0 var(--pc-cut-s));
  transition: border-color 160ms ease, background-color 160ms ease;
}

.page-contact .fb-item:has(.fb-item__input:checked) {
  border-color: var(--c-lime);
  background: var(--c-bg-1);
}

.page-contact .fb-item__label {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  cursor: pointer;
}

.page-contact .fb-item__input {
  position: absolute;
  top: 20px;
  left: 18px;
  width: 20px;
  height: 20px;
  margin: 0;
  opacity: 0;
}

.page-contact .fb-item__box {
  flex: none;
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 1px solid var(--c-line);
  background: var(--c-bg);
  transition: background-color 160ms ease, border-color 160ms ease;
}

.page-contact .fb-item__input:checked + .fb-item__box {
  background: var(--c-lime);
  border-color: var(--c-lime);
}

.page-contact .fb-item__input:checked + .fb-item__box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--c-bg);
  border-bottom: 2px solid var(--c-bg);
  transform: rotate(45deg);
}

.page-contact .fb-item__input:focus-visible + .fb-item__box {
  outline: 2px solid var(--c-lime);
  outline-offset: 3px;
}

.page-contact .fb-item__body {
  display: block;
}

.page-contact .fb-item__title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-white);
}

.page-contact .fb-item__desc {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-gray);
}

.page-contact .fb-ready {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-gray);
}

.page-contact .fb-ready__done {
  display: none;
  color: var(--c-lime);
}

.page-contact .fb-wrap:has(#fb-round:checked):has(#fb-match:checked):has(#fb-shot:checked):has(#fb-metric:checked):has(#fb-time:checked) .fb-ready__idle {
  display: none;
}

.page-contact .fb-wrap:has(#fb-round:checked):has(#fb-match:checked):has(#fb-shot:checked):has(#fb-metric:checked):has(#fb-time:checked) .fb-ready__done {
  display: inline;
}

.page-contact .fb-note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-gray);
}

/* ---------- 常见问题 ---------- */
.page-contact .qa-list {
  display: grid;
  gap: 10px;
}

.page-contact .qa {
  background: var(--c-bg-1);
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-teal);
  padding: 0 clamp(16px, 2vw, 22px);
}

.page-contact .qa[open] {
  border-left-color: var(--c-lime);
}

.page-contact .qa__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
  cursor: pointer;
  padding: 18px 0;
  font-size: 16px;
  line-height: 1.55;
  color: var(--c-white);
}

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

.page-contact .qa__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--c-lime);
}

.page-contact .qa[open] .qa__q::after {
  content: "–";
}

.page-contact .qa__q:focus-visible {
  outline: 2px solid var(--c-lime);
  outline-offset: 2px;
}

.page-contact .qa__a {
  padding: 0 0 20px;
  border-top: 1px solid var(--c-line);
  padding-top: 16px;
}

.page-contact .qa__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-gray);
  max-width: 68ch;
}

/* ---------- 相关页面 ---------- */
.page-contact .next-links {
  display: grid;
  gap: 10px;
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--c-line);
}

.page-contact .next-links a {
  display: block;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 14px;
  color: var(--c-white);
  background: var(--c-bg-1);
  border: 1px solid var(--c-line);
  transition: border-color 160ms ease, color 160ms ease, background-color 160ms ease;
}

.page-contact .next-links a:hover,
.page-contact .next-links a:focus-visible {
  border-color: var(--c-lime);
  color: var(--c-lime);
  background: var(--c-bg-2);
  outline: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .coop-tabs,
  .page-contact .fb-grid,
  .page-contact .next-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .reach {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .reach__label {
    width: auto;
    padding-left: 0;
  }

  .page-contact .reach__value {
    padding-left: 0;
  }

  .page-contact .reach__row::before {
    margin-right: -4px;
  }

  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .flow__step::after {
    content: "";
    position: absolute;
    top: 34px;
    right: -18px;
    width: 18px;
    height: 1px;
    background: linear-gradient(90deg, var(--c-teal), var(--c-lime));
  }

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

  .page-contact .coop-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .coop-tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .coop-tab {
    flex-direction: column;
    gap: 8px;
    padding: 18px 16px 20px;
  }
}

@media (min-width: 1100px) {
  .page-contact .next-links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-tab,
  .page-contact .fb-item,
  .page-contact .fb-item__box,
  .page-contact .next-links a {
    transition: none;
  }
}