.page-contact {
  --pc-r: 26px;
  --pc-edge: clamp(16px, 3.6vw, 34px);
  --pc-line: rgba(199, 219, 192, .6);
  --pc-line-dark: rgba(199, 219, 192, .2);
  background: var(--kg-paper);
  color: var(--kg-ink);
  font-family: var(--kg-font-body);
  overflow-x: hidden;
}

.page-contact .kg-shell {
  width: 100%;
  max-width: var(--kg-shell);
  margin: 0 auto;
  padding-left: var(--kg-gutter);
  padding-right: var(--kg-gutter);
}

/* ---------- hero ---------- */
.page-contact .pc-hero {
  position: relative;
  padding: calc(var(--kg-h) + clamp(38px, 7vw, 92px)) 0 clamp(38px, 6vw, 74px);
  background:
    radial-gradient(115% 85% at 92% 4%, rgba(204, 255, 0, .24), transparent 58%),
    radial-gradient(95% 75% at 4% 100%, rgba(139, 195, 74, .2), transparent 62%),
    var(--kg-paper);
  overflow: hidden;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(112deg, rgba(109, 76, 65, .065) 0 1px, transparent 1px 30px);
  pointer-events: none;
}

.page-contact .pc-hero__in {
  position: relative;
  z-index: 1;
}

.page-contact .pc-hero__kicker {
  margin-top: 22px;
  color: var(--kg-skin);
  letter-spacing: .2em;
}

.page-contact .pc-hero__title {
  font-family: var(--kg-font-display);
  font-size: clamp(38px, 8.6vw, 102px);
  line-height: .94;
  letter-spacing: -.012em;
  transform: skewX(-5deg);
  transform-origin: left top;
  margin: 14px 0 0;
  max-width: 16ch;
  color: var(--kg-ink);
}

.page-contact .pc-hero__lede {
  margin: 26px 0 0;
  max-width: 62ch;
  color: var(--kg-muted);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
}

.page-contact .pc-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-contact .pc-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 36px;
  margin: 42px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--kg-hair);
  list-style: none;
}

.page-contact .pc-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 9px;
}

.page-contact .pc-hero__factnum {
  font-family: var(--kg-font-mono);
  font-size: clamp(24px, 3.4vw, 32px);
  letter-spacing: -.02em;
  color: var(--kg-skin);
}

.page-contact .pc-hero__facttxt {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--kg-muted);
}

/* ---------- shared section rhythm ---------- */
.page-contact .pc-sec {
  padding: clamp(52px, 8vw, 104px) 0;
}

.page-contact .pc-sec--night {
  background: var(--kg-night);
  color: var(--kg-paper);
}

.page-contact .pc-sec--ink {
  background: var(--kg-ink);
  color: var(--kg-paper);
}

.page-contact .kg-title {
  font-family: var(--kg-font-display);
  font-size: clamp(27px, 4.3vw, 46px);
  line-height: 1.1;
  letter-spacing: -.008em;
  transform: skewX(-3deg);
  transform-origin: left center;
  margin: 14px 0 0;
  color: var(--kg-ink);
}

.page-contact .kg-kicker {
  color: var(--kg-skin);
  letter-spacing: .2em;
}

.page-contact .pc-sec--night .kg-title,
.page-contact .pc-sec--ink .kg-title {
  color: var(--kg-paper);
}

.page-contact .pc-sec--night .kg-kicker,
.page-contact .pc-sec--ink .kg-kicker {
  color: var(--kg-lime);
}

.page-contact .pc-lede-narrow {
  max-width: 66ch;
  margin: 18px 0 0;
  color: var(--kg-muted);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
}

.page-contact .pc-sec--night .pc-lede-narrow,
.page-contact .pc-sec--ink .pc-lede-narrow {
  color: rgba(244, 247, 242, .72);
}

/* ---------- 三类合作方向 ---------- */
.page-contact .pc-dirs {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  grid-template-columns: 1fr;
  margin-top: clamp(26px, 4vw, 46px);
}

.page-contact .pc-dir {
  position: relative;
  padding: 28px 24px 26px;
  background: #fff;
  border: 1px solid var(--kg-hair);
  border-radius: 4px 4px var(--pc-r) 4px;
  box-shadow: 0 22px 44px -40px rgba(11, 23, 16, .85);
  transition: transform .32s var(--kg-ease), border-color .32s var(--kg-ease), box-shadow .32s var(--kg-ease);
}

.page-contact .pc-dir::before {
  content: "";
  position: absolute;
  left: 0;
  top: 30px;
  width: 3px;
  height: 34px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--kg-grad-a), var(--kg-grad-b));
}

.page-contact .pc-dir:hover,
.page-contact .pc-dir:focus-within {
  transform: translateY(-6px);
  border-color: rgba(139, 195, 74, .8);
  box-shadow: 0 28px 54px -38px rgba(11, 23, 16, .95);
}

.page-contact .pc-dir__no {
  display: block;
  font-family: var(--kg-font-mono);
  font-size: 12.5px;
  letter-spacing: .18em;
  color: var(--kg-skin);
}

.page-contact .pc-dir__title {
  margin: 10px 0 0;
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 800;
  line-height: 1.28;
  color: var(--kg-ink);
}

.page-contact .pc-dir__desc {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--kg-muted);
}

.page-contact .pc-dir__meta {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--kg-hair);
  display: grid;
  gap: 12px;
}

.page-contact .pc-dir__meta dt {
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--kg-skin);
}

.page-contact .pc-dir__meta dd {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.64;
  color: var(--kg-ink);
}

/* ---------- 合作推进：步骤树 + 侧栏 ---------- */
.page-contact .pc-split {
  display: grid;
  gap: clamp(30px, 5vw, 54px);
  grid-template-columns: 1fr;
  margin-top: clamp(30px, 4vw, 50px);
}

.page-contact .pc-steps {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .pc-steps::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: linear-gradient(180deg, var(--kg-lime) 0%, rgba(204, 255, 0, .3) 55%, rgba(204, 255, 0, .05) 100%);
}

.page-contact .pc-step {
  position: relative;
  padding: 0 0 26px 62px;
}

.page-contact .pc-step:last-child {
  padding-bottom: 0;
}

.page-contact .pc-step__dot {
  position: absolute;
  left: 0;
  top: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--kg-font-mono);
  font-size: 13.5px;
  letter-spacing: .02em;
  color: var(--kg-lime);
  background: rgba(204, 255, 0, .07);
  border: 1px solid rgba(204, 255, 0, .45);
}

.page-contact .pc-step:first-child .pc-step__dot {
  background: var(--kg-lime);
  color: var(--kg-ink);
  border-color: var(--kg-lime);
  box-shadow: 0 0 0 7px rgba(204, 255, 0, .1);
}

.page-contact .pc-step__box {
  border: 0;
}

.page-contact .pc-step__sum {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding: 9px 0 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .pc-step__sum::after {
  content: "▾";
  margin-left: auto;
  font-size: 11px;
  color: var(--kg-lime);
  transition: transform .22s var(--kg-ease);
}

.page-contact .pc-step__box[open] .pc-step__sum::after {
  transform: rotate(180deg);
}

.page-contact .pc-step__name {
  font-size: clamp(16.5px, 2vw, 19px);
  font-weight: 700;
  color: var(--kg-paper);
}

.page-contact .pc-step__time {
  font-family: var(--kg-font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  padding: 3px 10px;
  border: 1px solid rgba(204, 255, 0, .38);
  border-radius: 999px;
  color: var(--kg-lime);
}

.page-contact .pc-step__txt {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(244, 247, 242, .72);
}

.page-contact .pc-step__roles {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(244, 247, 242, .48);
}

.page-contact .pc-media {
  margin: 0;
  border: 1px solid var(--pc-line-dark);
  border-radius: 4px 4px 34px 4px;
  background: rgba(244, 247, 242, .04);
  overflow: hidden;
}

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

.page-contact .pc-media__cap {
  padding: 12px 16px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(244, 247, 242, .54);
}

.page-contact .pc-need {
  margin-top: 20px;
  padding: 24px 22px;
  border: 1px solid rgba(204, 255, 0, .26);
  border-radius: 26px 4px 4px 4px;
  background: rgba(204, 255, 0, .06);
}

.page-contact .pc-need__title {
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--kg-lime);
}

.page-contact .pc-need__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .pc-need__list li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.68;
  color: rgba(244, 247, 242, .78);
}

.page-contact .pc-need__list .kg-num {
  font-family: var(--kg-font-mono);
  font-size: 13px;
  color: var(--kg-lime);
}

/* ---------- 交付能力与周期 ---------- */
.page-contact .pc-bands {
  display: grid;
  gap: clamp(16px, 2.6vw, 24px);
  grid-template-columns: 1fr;
  margin-top: clamp(28px, 4vw, 46px);
}

.page-contact .pc-band {
  position: relative;
  padding: 26px 22px 28px;
  border: 1px solid var(--kg-hair);
  border-radius: 4px 4px var(--pc-r) 4px;
  background: linear-gradient(180deg, #ffffff 0%, rgba(244, 247, 242, .7) 100%);
  overflow: hidden;
}

.page-contact .pc-band::after {
  content: "";
  position: absolute;
  right: -34px;
  bottom: -34px;
  width: 104px;
  height: 104px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(155, 225, 93, .38), transparent 68%);
  pointer-events: none;
}

.page-contact .pc-band__idx {
  display: block;
  font-family: var(--kg-font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--kg-skin);
}

.page-contact .pc-band__title {
  margin: 12px 0 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.34;
  color: var(--kg-ink);
}

.page-contact .pc-band__txt {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--kg-muted);
}

.page-contact .pc-keep {
  margin-top: clamp(30px, 4vw, 52px);
  padding-top: 28px;
  border-top: 1px solid var(--kg-hair);
}

.page-contact .pc-keep__title {
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--kg-ink);
}

.page-contact .pc-keep__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .pc-keep__list li {
  padding: 9px 16px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--kg-muted);
  background: #fff;
  border: 1px solid var(--kg-hair);
  border-radius: 999px;
}

/* ---------- 联系方式 ---------- */
.page-contact .pc-contact {
  position: relative;
  overflow: hidden;
}

.page-contact .pc-contact__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .17;
  pointer-events: none;
}

.page-contact .pc-contact__in {
  position: relative;
  z-index: 1;
}

.page-contact .pc-contact__grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  grid-template-columns: 1fr;
  margin-top: clamp(28px, 4vw, 46px);
}

.page-contact .pc-channels {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .pc-copy {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 5px 16px;
  align-items: center;
  width: 100%;
  padding: 18px 20px;
  text-align: left;
  font: inherit;
  color: var(--kg-paper);
  background: rgba(244, 247, 242, .05);
  border: 1px solid var(--pc-line-dark);
  border-radius: 4px 4px 24px 4px;
  cursor: pointer;
  transition: border-color .28s var(--kg-ease), background .28s var(--kg-ease), transform .28s var(--kg-ease);
}

.page-contact .pc-copy:hover {
  background: rgba(204, 255, 0, .07);
  border-color: var(--kg-lime);
  transform: translateY(-2px);
}

.page-contact .pc-copy:focus-visible {
  outline: 2px solid var(--kg-lime);
  outline-offset: 3px;
}

.page-contact .pc-copy__key {
  grid-column: 1;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: rgba(244, 247, 242, .55);
}

.page-contact .pc-copy__val {
  grid-column: 1;
  font-family: var(--kg-font-mono);
  font-size: clamp(15px, 2.2vw, 20px);
  letter-spacing: -.01em;
  color: var(--kg-lime);
  overflow-wrap: anywhere;
}

.page-contact .pc-copy__hint {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  font-size: 11.5px;
  color: rgba(244, 247, 242, .45);
}

.page-contact .pc-addr {
  padding: 18px 20px;
  border: 1px solid var(--pc-line-dark);
  border-radius: 24px 4px 4px 4px;
  background: rgba(244, 247, 242, .03);
}

.page-contact .pc-addr__key {
  display: block;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: rgba(244, 247, 242, .55);
}

.page-contact .pc-addr__val {
  display: block;
  margin-top: 7px;
  font-size: 15.5px;
  line-height: 1.62;
  color: var(--kg-paper);
}

.page-contact .pc-hours {
  padding: 24px 22px;
  border-left: 2px solid var(--kg-lime);
  background: linear-gradient(90deg, rgba(204, 255, 0, .07), transparent 74%);
}

.page-contact .pc-hours__title {
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--kg-lime);
}

.page-contact .pc-hours__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-contact .pc-hours__list li {
  display: grid;
  gap: 6px;
}

.page-contact .pc-hours__time {
  font-family: var(--kg-font-mono);
  font-size: clamp(15px, 2vw, 17px);
  letter-spacing: -.01em;
  color: var(--kg-paper);
}

.page-contact .pc-hours__list li > span:last-child {
  font-size: 13.5px;
  line-height: 1.66;
  color: rgba(244, 247, 242, .66);
}

.page-contact .pc-hours__note {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--pc-line-dark);
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(244, 247, 242, .6);
}

.page-contact .pc-legal {
  margin: clamp(30px, 4vw, 48px) 0 0;
  font-family: var(--kg-font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: rgba(244, 247, 242, .4);
}

/* ---------- 合作常见问题 ---------- */
.page-contact .pc-faqs {
  margin-top: clamp(28px, 4vw, 46px);
  display: grid;
  gap: 12px;
  max-width: 940px;
}

.page-contact .pc-faq {
  padding: 0 22px;
  background: #fff;
  border: 1px solid var(--kg-hair);
  border-radius: 4px 4px 22px 4px;
  transition: border-color .28s var(--kg-ease);
}

.page-contact .pc-faq[open] {
  border-color: rgba(139, 195, 74, .75);
}

.page-contact .pc-faq__q {
  position: relative;
  padding: 20px 36px 20px 0;
  font-size: clamp(15.5px, 1.9vw, 16.5px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--kg-ink);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .pc-faq__q::after {
  content: "";
  position: absolute;
  right: 2px;
  top: 50%;
  width: 11px;
  height: 11px;
  margin-top: -7px;
  border-right: 2px solid var(--kg-flesh);
  border-bottom: 2px solid var(--kg-flesh);
  transform: rotate(45deg);
  transition: transform .24s var(--kg-ease), margin-top .24s var(--kg-ease);
}

.page-contact .pc-faq[open] .pc-faq__q::after {
  margin-top: -2px;
  transform: rotate(-135deg);
}

.page-contact .pc-faq__a {
  margin: 0;
  padding: 0 0 22px;
  max-width: 74ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--kg-muted);
}

.page-contact .pc-faq__a a {
  color: var(--kg-skin);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 延伸入口 ---------- */
.page-contact .pc-more {
  padding-bottom: clamp(56px, 8vw, 110px);
}

.page-contact .pc-more__grid {
  margin-top: clamp(24px, 3.4vw, 38px);
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-contact .pc-more__item {
  display: grid;
  gap: 9px;
  padding: 22px 20px;
  text-decoration: none;
  color: var(--kg-ink);
  background: #fff;
  border: 1px solid var(--kg-hair);
  border-radius: 4px 4px 22px 4px;
  transition: transform .28s var(--kg-ease), border-color .28s var(--kg-ease);
}

.page-contact .pc-more__item:hover {
  transform: translateY(-4px);
  border-color: var(--kg-flesh);
}

.page-contact .pc-more__item:focus-visible {
  outline: 2px solid var(--kg-flesh);
  outline-offset: 3px;
}

.page-contact .pc-more__item .kg-index {
  font-family: var(--kg-font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--kg-skin);
}

.page-contact .pc-more__item strong {
  font-size: 16px;
  font-weight: 800;
  line-height: 1.4;
}

.page-contact .pc-more__item span:last-child {
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--kg-muted);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 780px) {
  .page-contact .pc-bands {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 880px) {
  .page-contact .pc-dirs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .pc-dir:nth-child(2) {
    margin-top: 52px;
  }

  .page-contact .pc-dir:nth-child(3) {
    margin-top: 20px;
  }

  .page-contact .pc-contact__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 920px) {
  .page-contact .pc-split {
    grid-template-columns: minmax(0, 1.24fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-contact .pc-more__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-dir,
  .page-contact .pc-copy,
  .page-contact .pc-more__item,
  .page-contact .pc-faq,
  .page-contact .pc-step__sum::after,
  .page-contact .pc-faq__q::after {
    transition: none;
  }

  .page-contact .pc-dir:hover,
  .page-contact .pc-copy:hover,
  .page-contact .pc-more__item:hover {
    transform: none;
  }
}
</main>