.page-contact {
  --pc-cut: 16px;
  --pc-panel-a: #1B2748;
  --pc-panel-b: #101830;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-head {
  position: relative;
  overflow: hidden;
  padding-top: 48px;
}

.page-contact .pc-head .scanline {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(53, 230, 210, 0.26), transparent);
}

.page-contact .pc-head__grid {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

@media (min-width: 900px) {
  .page-contact .pc-head__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
  }
}

.page-contact .pc-head h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 4.2vw, 52px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: 0.02em;
  max-width: 20ch;
}

.page-contact .pc-head__lede {
  margin: 0;
  max-width: 56ch;
  font-size: var(--fs-body);
  line-height: 1.78;
  color: var(--c-text-2);
}

.page-contact .pc-head__stamp {
  margin: 18px 0 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
  padding-left: 14px;
  border-left: 2px solid var(--c-cyan);
}

/* ---------- 三条通道 ---------- */
.page-contact .pc-channels__head {
  max-width: 640px;
}

.page-contact .pc-channels__head h2 {
  margin: 14px 0 0;
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.page-contact .pc-channels__head::after {
  content: "";
  display: block;
  width: 76px;
  height: 2px;
  margin-top: 22px;
  background: var(--c-cyan);
  transform: rotate(-8deg);
  transform-origin: left center;
}

.page-contact .pc-channels__sub {
  margin: 18px 0 0;
  color: var(--c-text-2);
  line-height: 1.78;
}

.page-contact .pc-channels__figure {
  margin: 38px 0 0;
}

.page-contact .channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 38px;
}

.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 32px 24px 30px;
  background: linear-gradient(180deg, var(--pc-panel-a) 0%, var(--pc-panel-b) 100%);
  clip-path: polygon(
    0 0,
    calc(100% - var(--pc-cut)) 0,
    100% var(--pc-cut),
    100% 100%,
    var(--pc-cut) 100%,
    0 calc(100% - var(--pc-cut))
  );
  transition: background var(--t-hover) var(--ease);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  width: 52px;
  height: 3px;
  background: var(--c-cyan);
}

.page-contact .channel:hover {
  background: linear-gradient(180deg, #22305A 0%, #141D38 100%);
}

.page-contact .channel:focus-within {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-contact .channel__idx {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-text-2);
}

.page-contact .channel__title {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.4;
}

.page-contact .channel__desc {
  margin: 0;
  color: var(--c-text-2);
  font-size: 15.5px;
  line-height: 1.75;
}

.page-contact .channel__for {
  margin: 0;
  color: var(--c-text-2);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-contact .channel__key {
  display: inline-block;
  min-width: 3.6em;
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-cyan);
}

.page-contact .channel__act {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px dashed var(--c-line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-contact .channel__val {
  font-size: 14px;
  color: var(--c-text);
  overflow-wrap: anywhere;
  word-break: break-all;
}

.page-contact .channel .copy-btn {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

@media (min-width: 940px) {
  .page-contact .channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    align-items: start;
    margin-top: 56px;
  }

  .page-contact .channel:nth-child(2) {
    transform: translateY(-30px);
    padding-top: 46px;
    padding-bottom: 42px;
  }

  .page-contact .channel:nth-child(3) {
    margin-top: 18px;
  }
}

/* ---------- 提交前准备 ---------- */
.page-contact .split__aside h2 {
  margin: 14px 0 0;
  font-size: clamp(22px, 2.2vw, 28px);
  font-weight: 800;
  line-height: 1.36;
  letter-spacing: 0.02em;
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  padding: 22px 24px;
  background: var(--c-panel);
}

.page-contact .prep-item__n {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

.page-contact .prep-item__t {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}

.page-contact .prep-item__d {
  grid-column: 2;
  margin: 0;
  color: var(--c-text-2);
  font-size: 15px;
  line-height: 1.72;
}

.page-contact .prep-tail {
  margin: 22px 0 0;
  color: var(--c-text-2);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-contact .prep-tail a,
.page-contact .flow__text a,
.page-contact .fix-tail a,
.page-contact .record__note a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 找回步骤 ---------- */
.page-contact .pc-narrow__lede {
  margin: 16px 0 0;
  color: var(--c-text-2);
  line-height: 1.78;
}

.page-contact .pc-flow__figure {
  margin: 34px 0 42px;
}

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

.page-contact .flow {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 30px;
}

.page-contact .flow::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: repeating-linear-gradient(
    180deg,
    var(--c-line) 0 5px,
    transparent 5px 11px
  );
}

.page-contact .flow__step {
  position: relative;
  padding-bottom: 36px;
}

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

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 5px;
  width: 15px;
  height: 15px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--c-bg);
  border: 2px solid var(--c-cyan);
}

.page-contact .flow__idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-text-2);
}

.page-contact .flow__title {
  margin: 8px 0 0;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
}

.page-contact .flow__text {
  margin: 10px 0 0;
  color: var(--c-text-2);
  font-size: 15.5px;
  line-height: 1.78;
}

.page-contact .flow__need {
  margin: 14px 0 0;
  padding: 12px 16px;
  background: var(--c-bg-2);
  border-left: 2px solid var(--c-line);
  color: var(--c-text-2);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-contact .flow__need b {
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--c-text);
}

/* ---------- 纠错与建议 ---------- */
.page-contact .pc-fix__lede {
  margin: 16px 0 0;
  max-width: 68ch;
  color: var(--c-text-2);
  line-height: 1.78;
}

.page-contact .fix-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 38px;
}

.page-contact .fix {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 24px 28px;
  background: var(--c-panel);
  border-top: 1px solid var(--c-line);
  transition: border-color var(--t-hover) var(--ease);
}

.page-contact .fix:hover {
  border-top-color: var(--c-cyan);
}

.page-contact .fix .label-tag {
  align-self: flex-start;
}

.page-contact .fix__title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
}

.page-contact .fix__text {
  margin: 0;
  color: var(--c-text-2);
  font-size: 15px;
  line-height: 1.75;
}

.page-contact .fix__meta {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--c-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-mint);
}

.page-contact .fix-tail {
  margin: 26px 0 0;
  color: var(--c-text-2);
  font-size: 14.5px;
  line-height: 1.75;
}

@media (min-width: 880px) {
  .page-contact .fix-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

/* ---------- 备案与联系地址 ---------- */
.page-contact .record {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: 30px 24px;
  background: var(--c-bg-2);
  border-left: 3px solid var(--c-cyan);
}

.page-contact .record__icp {
  margin: 14px 0 0;
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--c-text);
}

.page-contact .record__line {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-text);
  overflow-wrap: anywhere;
}

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

.page-contact .record__key {
  display: inline-block;
  min-width: 5em;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-text-2);
}

.page-contact .record__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text-2);
}

@media (min-width: 880px) {
  .page-contact .record {
    grid-template-columns: minmax(0, 3fr) minmax(0, 5fr) minmax(0, 4fr);
    gap: 40px;
    padding: 34px 36px;
  }
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 560px) {
  .page-contact .pc-head h1 {
    max-width: none;
  }

  .page-contact .channel {
    padding: 28px 20px 26px;
  }

  .page-contact .prep-item {
    padding: 20px 18px;
  }

  .page-contact .record {
    padding: 26px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .fix {
    transition: none;
  }

  .page-contact .channel:nth-child(2) {
    transform: none;
  }

  .page-contact .pc-head .scanline {
    display: none;
  }
}