/* ===== 联系与支持 · page-contact ===== */

.page-contact {
  --pc-card-bg: linear-gradient(180deg, rgba(17, 29, 51, .92), rgba(10, 19, 36, .72));
  color: var(--snow);
}

/* ---------- 首屏 ---------- */

.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  padding: clamp(38px, 6.5vw, 92px) 0 clamp(30px, 4.5vw, 56px);
  background:
    radial-gradient(760px 380px at 88% -8%, rgba(47, 227, 196, .12), transparent 62%),
    radial-gradient(620px 340px at 4% 4%, rgba(182, 255, 59, .09), transparent 60%);
}

.page-contact .yk-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(22px, 3.6vw, 44px);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--dim);
}

.page-contact .yk-crumbs a {
  color: var(--dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-contact .yk-crumbs a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-contact .yk-crumbs [aria-current="page"] {
  color: var(--snow);
}

.page-contact .yk-crumbs__sep {
  color: var(--line);
}

.page-contact .pc-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

@media (min-width: 900px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--gap);
    align-items: end;
  }
}

.page-contact .pc-hero__title {
  margin: 16px 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.6vw, 66px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--snow);
}

.page-contact .pc-hero__desc {
  margin: 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--dim);
}

/* 快速联系面板 */

.page-contact .pc-quick {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--pc-card-bg);
  box-shadow: 0 20px 44px rgba(0, 0, 0, .32);
}

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

.page-contact .pc-quick__row:first-child {
  padding-top: 4px;
  border-top: 0;
}

.page-contact .pc-quick__k {
  display: block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--dim);
  text-transform: uppercase;
}

.page-contact .pc-quick__v {
  display: block;
  margin-top: 8px;
  font-family: var(--font-data);
  font-size: clamp(15px, 3.4vw, 18px);
  line-height: 1.45;
  letter-spacing: .02em;
  color: var(--snow);
  word-break: break-all;
}

.page-contact .pc-quick__v--lime {
  color: var(--lime);
}

.page-contact .pc-quick__foot {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 通道视觉条 ---------- */

.page-contact .pc-visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .pc-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(10, 19, 36, .58), rgba(10, 19, 36, .16) 42%, rgba(10, 19, 36, .88));
}

.page-contact .pc-visual__img {
  display: block;
  width: 100%;
  height: clamp(170px, 30vw, 310px);
  object-fit: cover;
  object-position: center;
}

/* ---------- 通用分段 ---------- */

.page-contact .pc-sec {
  padding: clamp(48px, 7vw, 84px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-sec--last {
  border-bottom: 0;
}

.page-contact .pc-sec__head {
  display: grid;
  gap: 12px;
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-contact .pc-sec__head > .yk-h2 {
  margin: 0;
}

.page-contact .pc-sec__head > .yk-body {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--dim);
}

.page-contact .pc-sec__idx {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

/* ---------- 三条通道 ---------- */

.page-contact .pc-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 900px) {
  .page-contact .pc-channels__grid {
    grid-template-columns: 2.1fr 1.3fr 1fr;
    align-items: stretch;
  }
}

.page-contact .pc-chan {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding: 26px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--panel);
  transition: border-color var(--t-fast), transform var(--t-fast), background var(--t-fast);
}

.page-contact .pc-chan:hover {
  border-color: var(--lime);
  transform: translateY(-3px);
}

.page-contact .pc-chan--mail {
  border-color: rgba(182, 255, 59, .55);
  background: linear-gradient(158deg, rgba(182, 255, 59, .10), rgba(17, 29, 51, .96) 46%);
  box-shadow: 0 22px 46px rgba(0, 0, 0, .34), inset 0 0 0 1px rgba(182, 255, 59, .10);
}

.page-contact .pc-chan--mail::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 22px;
  width: 68px;
  height: 3px;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  background: var(--lime);
}

.page-contact .pc-chan--phone {
  border-color: rgba(255, 156, 43, .38);
}

.page-contact .pc-chan__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--snow);
}

.page-contact .pc-chan__value {
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(15px, 3.4vw, 19px);
  line-height: 1.4;
  letter-spacing: .02em;
  color: var(--lime);
  word-break: break-all;
}

.page-contact .pc-chan__value--plain {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  letter-spacing: .01em;
  color: var(--snow);
  word-break: break-word;
}

.page-contact .pc-chan__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--dim);
}

.page-contact .pc-chan__meta {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
}

/* ---------- 分流指引 ---------- */

.page-contact .pc-routes__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .pc-routes__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  transition: background var(--t-fast);
}

@media (min-width: 800px) {
  .page-contact .pc-routes__item {
    grid-template-columns: 152px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
    padding: 24px 12px;
  }

  .page-contact .pc-routes__item:hover {
    background: rgba(17, 29, 51, .62);
  }
}

.page-contact .pc-routes__item .yk-chip {
  justify-self: start;
}

.page-contact .pc-routes__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--snow);
}

.page-contact .pc-routes__item p {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--dim);
}

.page-contact .pc-inline {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 196, .42);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-contact .pc-inline:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 来信准备 ---------- */

.page-contact .pc-prep {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 700px) {
  .page-contact .pc-prep {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-contact .pc-prep {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .pc-prep__item {
  position: relative;
  padding: 20px 20px 20px 50px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(17, 29, 51, .55);
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-contact .pc-prep__item::before {
  content: "";
  position: absolute;
  top: 24px;
  left: 19px;
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--lime);
  border-bottom: 2px solid var(--lime);
  transform: rotate(-45deg);
}

.page-contact .pc-prep__item:hover {
  border-color: rgba(182, 255, 59, .5);
  background: rgba(17, 29, 51, .88);
}

.page-contact .pc-prep__item h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--snow);
}

.page-contact .pc-prep__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--dim);
}

/* ---------- 响应节奏 ---------- */

.page-contact .pc-resp {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

@media (min-width: 960px) {
  .page-contact .pc-resp {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--gap);
    align-items: start;
  }
}

.page-contact .pc-tl {
  position: relative;
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .pc-tl__step {
  position: relative;
  padding: 0 0 0 30px;
}

.page-contact .pc-tl__step::before {
  content: "";
  position: absolute;
  top: 5px;
  left: 0;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 0 5px rgba(47, 227, 196, .09);
}

@media (max-width: 759px) {
  .page-contact .pc-tl::after {
    content: "";
    position: absolute;
    top: 12px;
    bottom: 8px;
    left: 6px;
    width: 1px;
    background: linear-gradient(180deg, var(--cyan), rgba(47, 227, 196, .06));
  }
}

@media (min-width: 760px) {
  .page-contact .pc-tl {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .pc-tl::before {
    content: "";
    position: absolute;
    top: 6px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--cyan), rgba(47, 227, 196, .08));
  }

  .page-contact .pc-tl__step {
    padding: 34px 0 0;
  }

  .page-contact .pc-tl__step::before {
    top: 0;
  }
}

.page-contact .pc-tl__time {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-contact .pc-tl__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--snow);
}

.page-contact .pc-tl__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--dim);
}

.page-contact .pc-resp__note {
  margin: 0;
  padding: 18px 20px;
  border-left: 2px solid var(--amber);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: var(--amber-soft);
  font-size: 14px;
  line-height: 1.85;
  color: var(--dim);
}

.page-contact .pc-resp__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--panel);
}

.page-contact .pc-resp__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: .88;
}

/* ---------- 合作与建议 ---------- */

.page-contact .pc-collab {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

@media (min-width: 960px) {
  .page-contact .pc-collab {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
    gap: var(--gap);
    align-items: start;
  }
}

.page-contact .pc-collab__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 700px) {
  .page-contact .pc-collab__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .pc-collab__item {
  position: relative;
  padding: 26px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--pc-card-bg);
  transition: border-color var(--t-fast), transform var(--t-fast);
}

.page-contact .pc-collab__item:hover {
  border-color: var(--lime);
  transform: translateY(-3px);
}

.page-contact .pc-collab__no {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-contact .pc-collab__item h3 {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 700;
  color: var(--snow);
}

.page-contact .pc-collab__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--dim);
}

.page-contact .pc-collab__aside {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--lime);
  border-radius: var(--r-sm);
  background: rgba(17, 29, 51, .52);
}

.page-contact .pc-collab__quote {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--snow);
}

.page-contact .pc-collab__aside .yk-body {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--dim);
}

/* ---------- 尾部引导 ---------- */

.page-contact .pc-cta {
  padding: clamp(36px, 5.5vw, 64px) 0;
  border-top: 1px solid var(--line);
  background:
    linear-gradient(118deg, rgba(182, 255, 59, .09), rgba(10, 19, 36, 0) 54%),
    var(--panel);
}

.page-contact .pc-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: center;
}

@media (min-width: 860px) {
  .page-contact .pc-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
  }
}

.page-contact .pc-cta__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--snow);
}

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

.page-contact .pc-cta .yk-btn {
  justify-self: start;
}