/* ============================================================
   合作联系页（page-contact）
   ============================================================ */
.page-contact {
  --pc-rule: rgba(36, 48, 43, .9);
  --pc-cyan-rule: rgba(79, 209, 224, .42);
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
}

.page-contact h2 {
  margin: 0;
  font-family: var(--font-condensed);
  font-size: clamp(24px, 3.4vw, 40px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.15;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding-bottom: clamp(32px, 5vw, 72px);
  background:
    radial-gradient(70% 62% at 14% -12%, rgba(255, 177, 59, .11), rgba(255, 177, 59, 0) 68%),
    linear-gradient(180deg, var(--ink) 0%, var(--deep) 100%);
  border-bottom: 1px solid var(--pc-rule);
}

.page-contact .pc-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .pc-hero__head {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

@media (min-width: 900px) {
  .page-contact .pc-hero__head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    column-gap: clamp(28px, 4vw, 72px);
  }
}

.page-contact .pc-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-condensed);
  font-size: clamp(34px, 7.2vw, 84px);
  font-weight: 700;
  letter-spacing: -.035em;
  line-height: 1.05;
  color: var(--text);
}

.page-contact .pc-hero__title em {
  display: inline-block;
  font-style: normal;
  color: var(--amber);
  padding-bottom: .04em;
  border-bottom: 3px solid var(--amber-24);
}

.page-contact .pc-hero__lede {
  margin-top: clamp(16px, 2vw, 24px);
  max-width: 42ch;
}

.page-contact .pc-hero__facts {
  margin: 0;
  border-top: 1px solid var(--pc-rule);
}

.page-contact .pc-fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid var(--pc-rule);
}

.page-contact .pc-fact dt {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-contact .pc-fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.3vw, 27px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text);
}

.page-contact .pc-fact dd small {
  margin-left: 5px;
  font-size: .52em;
  font-weight: 400;
  color: var(--muted);
}

.page-contact .pc-hero__media {
  margin: clamp(28px, 4vw, 58px) 0 0;
  padding: 0;
}

.page-contact .pc-hero__media .figure__img {
  display: block;
  width: 100%;
  height: clamp(170px, 26vw, 370px);
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(.62) contrast(1.06);
  opacity: .92;
}

/* ---------- 联系渠道 ---------- */
.page-contact .pc-channels {
  padding: clamp(46px, 6vw, 100px) 0;
  background: var(--ink);
}

.page-contact .pc-channels__grid {
  display: grid;
  gap: clamp(30px, 4vw, 58px);
}

@media (min-width: 980px) {
  .page-contact .pc-channels__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    column-gap: clamp(34px, 5vw, 92px);
    align-items: start;
  }
}

.page-contact .pc-channels__aside {
  max-width: 460px;
}

.page-contact .pc-vnote {
  margin: 0 0 16px;
  writing-mode: vertical-rl;
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--amber);
}

.page-contact .pc-channels__intro {
  margin: 16px 0 0;
  max-width: 34ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .pc-channels__index {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-rule);
}

.page-contact .pc-channels__row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  column-gap: 12px;
  padding: 14px 0 14px 12px;
  border-bottom: 1px solid var(--pc-rule);
  border-left: 2px solid transparent;
  outline-offset: 3px;
  transition: border-color var(--base) var(--ease), background-color var(--base) var(--ease);
}

.page-contact .pc-channels__row:hover,
.page-contact .pc-channels__row:focus-visible {
  border-left-color: var(--amber);
  background: var(--amber-12);
}

.page-contact .pc-channels__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber);
  padding-top: 3px;
}

.page-contact .pc-channels__name {
  font-family: var(--font-condensed);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -.01em;
}

.page-contact .pc-channels__hint {
  grid-column: 2;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 980px) {
  .page-contact .pc-channels__hint {
    visibility: hidden;
    opacity: 0;
    transition: opacity var(--fast) var(--ease);
  }

  .page-contact .pc-channels__row:hover .pc-channels__hint,
  .page-contact .pc-channels__row:focus-visible .pc-channels__hint {
    visibility: visible;
    opacity: 1;
  }
}

.page-contact .pc-channel {
  padding: clamp(20px, 2.8vw, 32px) 0;
  border-top: 1px solid var(--pc-rule);
}

.page-contact .pc-channel:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .pc-channel__label {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-contact .pc-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: .01em;
  line-height: 1.15;
}

.page-contact .pc-channel__value a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 2px solid var(--amber-24);
  transition: color var(--base) var(--ease), border-color var(--base) var(--ease);
}

.page-contact .pc-channel__value a:hover,
.page-contact .pc-channel__value a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-contact .pc-channel__value--mail {
  font-size: clamp(15px, 3.3vw, 30px);
}

.page-contact .pc-channel__value--mail a {
  word-break: break-all;
}

.page-contact .pc-channel__value--tel {
  font-size: clamp(30px, 6.2vw, 68px);
}

.page-contact .pc-channel__use {
  margin: 12px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .pc-address {
  margin-top: clamp(22px, 3vw, 38px);
  padding: clamp(22px, 3vw, 38px) clamp(22px, 3vw, 42px) clamp(30px, 4.6vw, 60px) clamp(20px, 2.6vw, 34px);
  background: var(--panel);
  border: 1px solid var(--pc-rule);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

@media (min-width: 980px) {
  .page-contact .pc-address {
    margin-left: clamp(0px, 5vw, 84px);
  }
}

.page-contact .pc-address__label {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-contact .pc-address__value {
  margin: 0;
  font-family: var(--font-condensed);
  font-size: clamp(19px, 2.6vw, 30px);
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1.45;
}

.page-contact .pc-address__note {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .pc-channels__main .source-line {
  margin-top: clamp(16px, 2vw, 26px);
}

/* ---------- 渠道边界 ---------- */
.page-contact .pc-boundary {
  padding: clamp(46px, 6vw, 96px) 0;
  background: var(--deep);
  border-top: 1px solid var(--pc-rule);
}

.page-contact .pc-boundary__lede {
  margin-top: 16px;
}

.page-contact .pc-boundary .accordion {
  margin-top: clamp(24px, 3.6vw, 46px);
  border-top: 1px solid var(--pc-rule);
}

.page-contact .accordion__item {
  border-bottom: 1px solid var(--pc-rule);
}

.page-contact .pc-acc-h {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-contact .accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: clamp(16px, 2.2vw, 24px) 4px;
  background: none;
  border: 0;
  color: var(--text);
  font-family: var(--font-condensed);
  font-size: clamp(17px, 2.1vw, 23px);
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1.4;
  text-align: left;
  cursor: pointer;
  transition: color var(--base) var(--ease), background-color var(--base) var(--ease);
}

.page-contact .accordion__trigger:hover {
  background: var(--amber-12);
  color: var(--amber);
}

.page-contact .accordion__sign {
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--amber);
}

.page-contact .accordion__panel {
  padding: 0 4px clamp(18px, 2.4vw, 30px);
}

.page-contact .accordion__panel p {
  margin: 0 0 12px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .accordion__panel p:last-child {
  margin-bottom: 0;
}

/* 斜切分缝 */
.page-contact .pc-seam {
  height: 2px;
  background: var(--pc-cyan-rule);
  transform: skewY(-.7deg);
  transform-origin: 0 0;
}

/* ---------- 纠错字段 ---------- */
.page-contact .pc-corrections {
  padding: clamp(46px, 6vw, 100px) 0;
  background: var(--ink);
}

.page-contact .pc-corrections__grid {
  display: grid;
  gap: clamp(30px, 4vw, 58px);
}

@media (min-width: 980px) {
  .page-contact .pc-corrections__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(34px, 5vw, 84px);
    align-items: start;
  }
}

.page-contact .pc-corrections__lede {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .pc-fields {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-rule);
}

.page-contact .pc-fields__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 5px;
  padding: 14px 0 14px 12px;
  border-bottom: 1px solid var(--pc-rule);
  transition: background-color var(--base) var(--ease);
}

.page-contact .pc-fields__item:hover {
  background: var(--amber-12);
}

.page-contact .pc-fields__no {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber);
  padding-top: 3px;
}

.page-contact .pc-fields__name {
  font-family: var(--font-condensed);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -.01em;
}

.page-contact .pc-fields__desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .pc-corrections__note {
  margin-top: clamp(18px, 2.4vw, 28px);
  max-width: 60ch;
}

.page-contact .pc-corrections__figure {
  margin: 0;
}

.page-contact .pc-corrections__figure .figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.6) contrast(1.05);
}

.page-contact .pc-corrections__figure .figure__cap {
  margin-top: 0;
  padding-top: 12px;
  border-top: 1px solid var(--pc-cyan-rule);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 口径咨询 ---------- */
.page-contact .pc-scope {
  padding: clamp(42px, 5.4vw, 92px) 0;
  background: var(--deep);
  border-top: 1px solid var(--pc-rule);
}

.page-contact .pc-scope__lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .pc-scope__list {
  list-style: none;
  margin: clamp(24px, 3.2vw, 42px) 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-rule);
}

.page-contact .pc-scope__item {
  display: grid;
  gap: 8px;
  padding: clamp(16px, 2.4vw, 26px) 0 clamp(16px, 2.4vw, 26px) clamp(14px, 2vw, 26px);
  border-bottom: 1px solid var(--pc-rule);
  border-left: 2px solid var(--cyan);
  transition: background-color var(--base) var(--ease);
}

.page-contact .pc-scope__item:hover {
  background: var(--cyan-12);
}

@media (min-width: 900px) {
  .page-contact .pc-scope__item {
    grid-template-columns: minmax(0, 2fr) minmax(0, 6fr) minmax(0, 3fr);
    align-items: baseline;
    column-gap: clamp(20px, 3vw, 46px);
  }
}

.page-contact .pc-scope__name {
  margin: 0;
  font-family: var(--font-condensed);
  font-size: clamp(19px, 2.2vw, 26px);
  font-weight: 600;
  letter-spacing: -.01em;
}

.page-contact .pc-scope__def {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .pc-scope__link {
  margin: 0;
  font-size: 13px;
}

/* ---------- 引用与转载 ---------- */
.page-contact .pc-license {
  padding: clamp(46px, 6vw, 100px) 0;
  background: var(--ink);
}

.page-contact .pc-license__grid {
  display: grid;
  gap: clamp(26px, 3.6vw, 50px);
  margin-top: clamp(22px, 3vw, 38px);
}

@media (min-width: 900px) {
  .page-contact .pc-license__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    column-gap: clamp(34px, 5vw, 84px);
  }
}

.page-contact .pc-license__col {
  padding-top: 18px;
  border-top: 2px solid var(--amber);
}

.page-contact .pc-license__col + .pc-license__col {
  border-top-color: var(--cyan);
}

.page-contact .pc-license__k {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-contact .pc-license__col + .pc-license__col .pc-license__k {
  color: var(--cyan);
}

.page-contact .pc-license__text {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .pc-license__sample {
  margin: 18px 0 0;
  padding: 13px 18px;
  background: var(--panel);
  border-left: 2px solid var(--amber);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--text);
}

.page-contact .pc-license__action {
  margin: 20px 0 0;
}

/* ---------- 合作类型 ---------- */
.page-contact .pc-coop {
  padding: clamp(46px, 6vw, 100px) 0;
  background: var(--deep);
  border-top: 1px solid var(--pc-rule);
}

.page-contact .pc-coop__grid {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
  margin-top: clamp(24px, 3.2vw, 40px);
}

@media (min-width: 900px) {
  .page-contact .pc-coop__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: clamp(30px, 4vw, 68px);
  }

  .page-contact .pc-coop__col + .pc-coop__col {
    border-left: 1px solid var(--pc-cyan-rule);
    padding-left: clamp(30px, 4vw, 68px);
  }
}

.page-contact .pc-coop__col {
  padding-top: 20px;
  border-top: 1px solid var(--pc-rule);
}

.page-contact .pc-coop__tag {
  margin: 0;
}

.page-contact .pc-coop__col h3 {
  margin: 14px 0 12px;
  font-family: var(--font-condensed);
  font-size: clamp(20px, 2.5vw, 29px);
  font-weight: 600;
  letter-spacing: -.015em;
  line-height: 1.25;
}

.page-contact .pc-coop__col > p {
  margin: 0 0 14px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

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

.page-contact .pc-coop__list li {
  position: relative;
  padding: 9px 0 9px 24px;
  font-size: 14.5px;
  line-height: 1.75;
  border-bottom: 1px solid var(--pc-rule);
}

.page-contact .pc-coop__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 18px;
  width: 9px;
  height: 1.5px;
  background: var(--amber);
}

.page-contact .pc-coop__ref {
  margin: 0;
  max-width: 48ch;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 收束 ---------- */
.page-contact .pc-closing {
  padding: clamp(40px, 5.2vw, 84px) 0 clamp(30px, 4vw, 60px);
  background: var(--ink);
  border-top: 1px solid var(--pc-rule);
}

.page-contact .pc-closing__h {
  font-size: clamp(20px, 2.4vw, 30px);
}

.page-contact .pc-closing__line {
  margin: 16px 0 24px;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .pc-closing__links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 0 0 28px;
  padding: 0;
}

.page-contact .pc-closing__links a {
  font-family: var(--font-condensed);
  font-size: 15.5px;
  letter-spacing: .01em;
  color: var(--text);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--grid-line);
  transition: color var(--base) var(--ease), border-color var(--base) var(--ease);
}

.page-contact .pc-closing__links a:hover,
.page-contact .pc-closing__links a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* 页内链接统一状态 */
.page-contact .pc-scope__link a,
.page-contact .pc-coop__ref a,
.page-contact .pc-closing__line a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-cyan-rule);
  transition: color var(--base) var(--ease), border-color var(--base) var(--ease);
}

.page-contact .pc-scope__link a:hover,
.page-contact .pc-coop__ref a:hover,
.page-contact .pc-closing__line a:hover,
.page-contact .pc-scope__link a:focus-visible,
.page-contact .pc-coop__ref a:focus-visible,
.page-contact .pc-closing__line a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-contact .pc-closing .source-line {
  margin: 0;
}

/* ---------- 窄屏收紧 ---------- */
@media (max-width: 560px) {
  .page-contact .pc-hero__title {
    font-size: clamp(30px, 10vw, 44px);
  }

  .page-contact .pc-channel__value--tel {
    font-size: clamp(26px, 9vw, 40px);
  }

  .page-contact .pc-vnote {
    writing-mode: horizontal-tb;
    letter-spacing: .24em;
  }

  .page-contact .pc-address {
    clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  }

  .page-contact .pc-coop__col + .pc-coop__col {
    border-top: 1px solid var(--pc-cyan-rule);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before {
    transition-duration: .001ms !important;
  }

  .page-contact .pc-seam {
    transform: none;
  }
}