/* ===== 商务合作页 · page-contact ===== */

.page-contact {
  --coop-side-w: 372px;
}

/* --- 首屏 --- */
.page-contact .coop-hero {
  display: grid;
  gap: 30px;
  margin: 22px 0 46px;
}

.page-contact .coop-hero__lead h1 {
  font-family: var(--font-head);
  font-size: clamp(32px, 7vw, 56px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 14px 0 0;
}

.page-contact .coop-hero__intro {
  max-width: 34em;
  margin: 20px 0 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .coop-hero__points {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .coop-hero__points li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--dim);
}

.page-contact .coop-hero__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .coop-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .coop-hero__facts {
  padding: 24px 22px 22px;
  border: 3px solid var(--edge-strong);
  background: var(--panel);
  box-shadow: 9px 9px 0 rgba(0, 231, 210, 0.1);
}

.page-contact .coop-facts {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-contact .coop-facts li {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-top: 2px solid var(--edge);
}

.page-contact .coop-facts li:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-contact .coop-facts__num {
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-contact .coop-facts__plus {
  font-size: 22px;
  color: var(--dim);
  margin-left: 2px;
}

.page-contact .coop-facts__txt {
  font-size: 13px;
  line-height: 1.6;
  color: var(--dim);
}

/* --- 主体分栏 --- */
.page-contact .coop-layout {
  display: grid;
  gap: 44px;
  padding-bottom: 84px;
}

.page-contact .coop-main {
  min-width: 0;
}

/* --- 图片 --- */
.page-contact .coop-figure {
  margin: 0 0 42px;
}

.page-contact .coop-media {
  position: relative;
  overflow: hidden;
  border: 3px solid var(--edge);
  background: var(--steel);
  aspect-ratio: 4 / 3;
}

.page-contact .coop-media img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.06);
}

.page-contact .coop-media--tall {
  aspect-ratio: 16 / 9;
}

.page-contact .coop-figure figcaption,
.page-contact .coop-side__figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--dim);
}

/* --- 章节通用 --- */
.page-contact .coop-section {
  margin-top: 52px;
  padding-top: 26px;
  border-top: 3px solid var(--edge);
}

.page-contact .coop-main > .coop-section:first-of-type {
  margin-top: 0;
}

.page-contact .coop-section h2 {
  font-family: var(--font-head);
  font-size: clamp(23px, 3.2vw, 32px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text);
  margin: 10px 0 0;
}

.page-contact .coop-section__desc {
  max-width: 40em;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--dim);
}

.page-contact .coop-section__more {
  margin: 22px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--dim);
}

.page-contact .coop-section__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 231, 210, 0.45);
}

.page-contact .coop-section__more a:hover {
  border-bottom-color: var(--cyan);
}

/* --- 合作类型 --- */
.page-contact .coop-types {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .coop-type {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 18px;
  padding: 20px 16px 22px;
  border-bottom: 2px solid var(--edge);
  border-left: 3px solid transparent;
  transition: background var(--dur) var(--ease), border-left-color var(--dur) var(--ease);
}

.page-contact .coop-type:first-child {
  border-top: 2px solid var(--edge);
}

.page-contact .coop-type:hover {
  background: var(--steel);
  border-left-color: var(--orange);
}

.page-contact .coop-type__no {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-contact .coop-type__body h3 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
}

.page-contact .coop-type__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--dim);
}

.page-contact .coop-type__body p.coop-type__for {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--text);
  opacity: 0.72;
}

/* --- 合作流程 --- */
.page-contact .coop-flow {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 26px;
}

.page-contact .coop-flow__step::before {
  content: "";
  display: block;
  height: 3px;
  margin-bottom: 16px;
  background: var(--edge);
}

.page-contact .coop-flow__step:nth-child(1)::before {
  background: linear-gradient(90deg, var(--cyan) 0 100%, var(--edge) 100%);
}

.page-contact .coop-flow__step:nth-child(2)::before {
  background: linear-gradient(90deg, var(--cyan) 0 38%, var(--edge) 38%);
}

.page-contact .coop-flow__step:nth-child(3)::before {
  background: linear-gradient(90deg, var(--cyan) 0 62%, var(--edge) 62%);
}

.page-contact .coop-flow__step:nth-child(4)::before {
  background: linear-gradient(90deg, var(--cyan) 0 86%, var(--edge) 86%);
}

.page-contact .coop-flow__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--orange);
  margin-bottom: 8px;
}

.page-contact .coop-flow__step h3 {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
}

.page-contact .coop-flow__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--dim);
}

/* --- 授权级别对照 --- */
.page-contact .lic-scroll {
  margin-top: 26px;
  overflow-x: auto;
  border: 3px solid var(--edge);
  background: var(--panel);
}

.page-contact .lic-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-contact .lic-caption {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-contact .lic-table th,
.page-contact .lic-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  border-bottom: 2px solid var(--edge);
  border-left: 2px solid var(--edge);
}

.page-contact .lic-table thead th {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  background: var(--steel);
  white-space: nowrap;
}

.page-contact .lic-table thead th:first-child,
.page-contact .lic-table tbody th {
  border-left: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--dim);
  background: var(--steel);
  white-space: nowrap;
}

.page-contact .lic-table td {
  color: var(--text);
}

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

.page-contact .lic-table tbody tr:hover td,
.page-contact .lic-table tbody tr:hover th {
  background: rgba(21, 28, 44, 0.75);
}

.page-contact .lic-table tr.lic-row--diff > th,
.page-contact .lic-table tr.lic-row--diff > td {
  box-shadow: inset 0 0 0 2px var(--orange);
}

.page-contact .lic-note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--orange);
  font-size: 13px;
  line-height: 1.7;
  color: var(--dim);
}

/* --- 响应与支持 --- */
.page-contact .coop-resp {
  margin: 26px 0 0;
  display: grid;
  gap: 0;
}

.page-contact .coop-resp__row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 2px solid var(--edge);
}

.page-contact .coop-resp__row:first-child {
  border-top: 2px solid var(--edge);
}

.page-contact .coop-resp dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-contact .coop-resp dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--dim);
}

.page-contact .coop-resp dd a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--edge-strong);
}

.page-contact .coop-resp dd a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* --- 侧栏 --- */
.page-contact .coop-side {
  min-width: 0;
}

.page-contact .coop-side__sticky {
  display: grid;
  gap: 26px;
}

.page-contact .coop-contact {
  padding: 24px 22px 26px;
  border: 3px solid var(--edge-strong);
  background: var(--panel);
  box-shadow: 9px 9px 0 rgba(0, 231, 210, 0.12);
}

.page-contact .coop-contact h2 {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  margin: 10px 0 18px;
}

.page-contact .coop-contact__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--dim);
}

.page-contact .coop-contact__mail {
  margin: 6px 0 8px;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .coop-contact__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--dim);
}

.page-contact .coop-contact__list {
  margin: 20px 0 0;
}

.page-contact .coop-contact__list > div {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-top: 2px solid var(--edge);
}

.page-contact .coop-contact__list dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--dim);
}

.page-contact .coop-contact__list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
}

.page-contact .coop-contact__checklist {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 2px dashed var(--edge-strong);
}

.page-contact .coop-contact__checklist ul {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .coop-contact__checklist li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--dim);
}

.page-contact .coop-contact__checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--orange);
}

.page-contact .coop-side__figure {
  margin: 0;
}

.page-contact .coop-side__links ul {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-contact .coop-side__links li {
  border-bottom: 2px solid var(--edge);
}

.page-contact .coop-side__links li:first-child {
  border-top: 2px solid var(--edge);
}

.page-contact .coop-side__links a {
  display: block;
  padding: 12px 0;
  font-size: 14px;
  color: var(--text);
  text-decoration: none;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-contact .coop-side__links a:hover {
  color: var(--cyan);
  padding-left: 8px;
}

/* --- 焦点可见性 --- */
.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* --- 断点 --- */
@media (max-width: 419px) {
  .page-contact .coop-type {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }
}

@media (min-width: 720px) {
  .page-contact .coop-media--wide {
    aspect-ratio: 14 / 9;
  }

  .page-contact .coop-resp__row {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

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

  .page-contact .coop-flow__step {
    padding: 0 18px;
    border-left: 2px solid var(--edge);
  }

  .page-contact .coop-flow__step:first-child {
    padding-left: 0;
    border-left: 0;
  }
}

@media (min-width: 900px) {
  .page-contact .coop-hero {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
    margin: 34px 0 62px;
  }
}

@media (min-width: 980px) {
  .page-contact .coop-layout {
    grid-template-columns: minmax(0, 1fr) var(--coop-side-w);
    gap: 56px;
    align-items: start;
  }

  .page-contact .coop-side__sticky {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
    max-height: calc(100vh - var(--bar-h) - 48px);
    overflow-y: auto;
    padding-right: 6px;
  }

  .page-contact .coop-media--tall {
    aspect-ratio: 3 / 2;
  }

  .page-contact .coop-contact__mail {
    font-size: 20px;
  }
}

/* --- 降低动效偏好 --- */
@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}