.page-contact {
  --coop-cut: 16px;
  --coop-pad: clamp(40px, 6vw, 88px);
  background: var(--ink);
  color: var(--paper);
}

/* ---------- 面包屑 ---------- */
.page-contact .coop-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(16px, 3vw, 28px);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}
.page-contact .coop-crumbs__item,
.page-contact .coop-crumbs a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}
.page-contact .coop-crumbs a:hover,
.page-contact .coop-crumbs a:focus-visible {
  color: var(--cyan-soft);
}
.page-contact .coop-crumbs [aria-current="page"] {
  color: var(--paper);
}
.page-contact .s33-crumbs__sep {
  color: var(--line);
}

/* ---------- 首屏 ---------- */
.page-contact .coop-hero {
  padding: clamp(24px, 4vw, 44px) 0 clamp(48px, 7vw, 88px);
}
.page-contact .coop-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: end;
}
.page-contact .coop-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--cyan);
}
.page-contact .coop-eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}
.page-contact .coop-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: clamp(34px, 7.2vw, 62px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-contact .coop-hero__title em {
  font-style: normal;
  color: var(--cyan);
}
.page-contact .coop-hero__lede {
  max-width: 36em;
  margin: 0 0 28px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--steel);
}
.page-contact .coop-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}
.page-contact .coop-hero__meta {
  display: grid;
  gap: 16px;
  margin: 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.page-contact .coop-hero__meta dt {
  margin-bottom: 6px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
}
.page-contact .coop-hero__meta dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--paper);
}

.page-contact .coop-hero__figure {
  position: relative;
  margin: 0;
}
.page-contact .coop-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
  clip-path: polygon(0 0, calc(100% - var(--coop-cut)) 0, 100% var(--coop-cut), 100% 100%, 0 100%);
}
.page-contact .coop-hero__tag {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 6px 14px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--ink);
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}

/* ---------- 区块标题 ---------- */
.page-contact .coop-sectionhead {
  margin-bottom: clamp(24px, 4vw, 44px);
}
.page-contact .coop-sectionhead .s33-eyebrow {
  display: block;
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}
.page-contact .coop-sectionhead h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(25px, 4.4vw, 40px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
}
.page-contact .coop-sectionhead p {
  max-width: 40em;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 合作类型 ---------- */
.page-contact .coop-types {
  padding: clamp(16px, 3vw, 32px) 0 var(--coop-pad);
}
.page-contact .coop-layout {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}
.page-contact .coop-list {
  display: grid;
}
.page-contact .coop-item {
  position: relative;
  padding: clamp(20px, 3vw, 28px) 0 clamp(20px, 3vw, 28px) clamp(16px, 2vw, 24px);
  border-top: 1px solid var(--line);
  transition: background var(--t) var(--ease);
}
.page-contact .coop-item:last-child {
  border-bottom: 1px solid var(--line);
}
.page-contact .coop-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--t) var(--ease);
}
.page-contact .coop-item:hover::before,
.page-contact .coop-item:focus-within::before,
.page-contact .coop-item:target::before {
  transform: scaleY(1);
}
.page-contact .coop-item__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
}
.page-contact .coop-item__num {
  font-family: var(--font-num);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cyan);
}
.page-contact .coop-item h3 {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-contact .coop-item > p {
  max-width: 38em;
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}
.page-contact .coop-item__facts {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .coop-item__facts li {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}
.page-contact .coop-item__facts span {
  padding-top: 2px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--cyan-soft);
}

/* ---------- 联系面板 ---------- */
.page-contact .coop-panelwrap {
  position: relative;
}
.page-contact .coop-panelwrap::before {
  content: "";
  position: absolute;
  top: 9px;
  right: -9px;
  bottom: -9px;
  left: 9px;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(31, 224, 207, 0.12), transparent 62%);
  clip-path: polygon(0 0, calc(100% - var(--coop-cut)) 0, 100% var(--coop-cut), 100% 100%, 0 100%);
  pointer-events: none;
}
.page-contact .coop-panel {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--coop-cut)) 0, 100% var(--coop-cut), 100% 100%, 0 100%);
}
.page-contact .coop-panel__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}
.page-contact .coop-panel h2 {
  margin: 0 0 20px;
  font-size: clamp(19px, 2.6vw, 23px);
  font-weight: 800;
  line-height: 1.38;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-contact .coop-panel__rows {
  display: grid;
  gap: 14px;
  margin: 0;
}
.page-contact .coop-panel__row {
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line);
}
.page-contact .coop-panel__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.page-contact .coop-panel__row dt {
  margin-bottom: 5px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}
.page-contact .coop-panel__row dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}
.page-contact .coop-panel__note {
  margin: 18px 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}
.page-contact .coop-panel__btn {
  display: block;
  text-align: center;
}

/* ---------- 推进流程 ---------- */
.page-contact .coop-flow {
  padding: clamp(24px, 4vw, 48px) 0 var(--coop-pad);
}
.page-contact .coop-steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .coop-step {
  padding: 22px 20px 24px;
  background: var(--ink-2);
  border-top: 3px solid var(--cyan);
  clip-path: polygon(0 0, calc(100% - var(--coop-cut)) 0, 100% var(--coop-cut), 100% 100%, 0 100%);
}
.page-contact .coop-step:nth-child(3),
.page-contact .coop-step:nth-child(4) {
  border-top-color: var(--flame);
  background: linear-gradient(180deg, rgba(255, 90, 43, 0.09), rgba(15, 21, 29, 1) 68%);
}
.page-contact .coop-step:nth-child(1),
.page-contact .coop-step:nth-child(2) {
  background: linear-gradient(180deg, rgba(31, 224, 207, 0.09), rgba(15, 21, 29, 1) 68%);
}
.page-contact .coop-step__num {
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}
.page-contact .coop-step:nth-child(3) .coop-step__num,
.page-contact .coop-step:nth-child(4) .coop-step__num {
  color: var(--flame);
}
.page-contact .coop-step h3 {
  margin: 10px 0 8px;
  font-size: 18px;
  font-weight: 800;
  color: var(--paper);
}
.page-contact .coop-step p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}
.page-contact .coop-step__time {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-soft);
}

/* ---------- 联系渠道 ---------- */
.page-contact .coop-direct {
  padding: var(--coop-pad) 0;
  border-top: 1px solid var(--line);
}
.page-contact .coop-channels {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-contact .coop-channel {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(18px, 3vw, 26px);
  background: var(--ink);
}
.page-contact .coop-channel__k {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}
.page-contact .coop-channel__v {
  margin: 0;
  font-family: var(--font-num);
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}
.page-contact .coop-channel__m {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}
.page-contact .coop-channel__m b {
  font-weight: 600;
  color: var(--steel);
}
.page-contact .coop-direct__note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}
.page-contact .coop-direct__dot {
  flex: none;
  width: 7px;
  height: 7px;
  margin-top: 8px;
  background: var(--flame);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* ---------- 来访 ---------- */
.page-contact .coop-visit {
  padding: var(--coop-pad) 0;
  border-top: 1px solid var(--line);
}
.page-contact .coop-visit__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}
.page-contact .coop-visit__figure {
  margin: 0;
}
.page-contact .coop-visit__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.8) brightness(0.92);
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--coop-cut) 100%, 0 calc(100% - var(--coop-cut)));
}
.page-contact .coop-visit__figure figcaption {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.page-contact .coop-visit__body .s33-eyebrow {
  display: block;
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}
.page-contact .coop-visit__body h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(25px, 4.4vw, 38px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
}
.page-contact .coop-visit__body p {
  max-width: 36em;
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}
.page-contact .coop-visit__list {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .coop-visit__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}
.page-contact .coop-visit__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 常见问题 ---------- */
.page-contact .coop-faq {
  padding: var(--coop-pad) 0;
  border-top: 1px solid var(--line);
}
.page-contact .coop-faq__list {
  max-width: 62em;
}
.page-contact .coop-faq details {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.page-contact .coop-faq details:last-child {
  border-bottom: 1px solid var(--line);
}
.page-contact .coop-faq summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--paper);
  transition: color var(--t) var(--ease);
}
.page-contact .coop-faq summary::-webkit-details-marker {
  display: none;
}
.page-contact .coop-faq summary:hover {
  color: var(--cyan-soft);
}
.page-contact .coop-faq summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
}
.page-contact .coop-faq details[open] summary::after {
  content: "–";
  color: var(--flame);
}
.page-contact .coop-faq details p {
  max-width: 44em;
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--steel);
}
.page-contact .coop-faq details a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 224, 207, 0.4);
}
.page-contact .coop-faq details a:hover,
.page-contact .coop-faq details a:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 尾段入口 ---------- */
.page-contact .coop-next {
  padding: 0 0 clamp(48px, 7vw, 88px);
}
.page-contact .coop-next__inner {
  display: grid;
  gap: 20px;
  padding: clamp(24px, 4vw, 40px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--coop-cut)) 0, 100% var(--coop-cut), 100% 100%, 0 100%);
}
.page-contact .coop-next__inner h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 28px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.02em;
}
.page-contact .coop-next__inner p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}
.page-contact .coop-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-contact .coop-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
  .page-contact .coop-item__facts li {
    grid-template-columns: 84px minmax(0, 1fr);
  }
}

@media (min-width: 640px) {
  .page-contact .coop-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 820px) {
  .page-contact .coop-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .coop-next__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-contact .coop-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-contact .coop-visit__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }
}

@media (min-width: 960px) {
  .page-contact .coop-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(36px, 5vw, 76px);
  }
  .page-contact .coop-panelwrap {
    position: sticky;
    top: 104px;
  }
}

@media (min-width: 1000px) {
  .page-contact .coop-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-item::before,
  .page-contact .coop-item,
  .page-contact .coop-crumbs a,
  .page-contact .coop-faq summary {
    transition: none;
  }
}