.page-contact {
  padding-top: clamp(1rem, 3.5vw, 2rem);
  padding-bottom: clamp(3rem, 8vw, 5.5rem);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  isolation: isolate;
  margin-top: clamp(.75rem, 2.5vw, 1.5rem);
  padding: clamp(2rem, 6vw, 3.75rem) 0 clamp(2.25rem, 6vw, 4rem);
  overflow: hidden;
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  z-index: -2;
  inset: -35% -18% 0 -18%;
  background:
    radial-gradient(58% 78% at 10% 0%, rgba(47, 125, 255, .30), transparent 66%),
    radial-gradient(52% 68% at 94% 6%, rgba(53, 240, 160, .15), transparent 72%);
  pointer-events: none;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image: repeating-linear-gradient(to right, var(--grid) 0 1px, transparent 1px 8.3333%);
  opacity: .38;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  pointer-events: none;
}

.page-contact .pc-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

@media (min-width: 880px) {
  .page-contact .pc-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }
}

.page-contact .pc-kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin: 0 0 1.1rem;
  padding: .32rem .85rem .32rem .55rem;
  border: 1px solid var(--grid);
  border-radius: var(--radius-pill);
  background: rgba(19, 26, 36, .72);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--ice);
}

.page-contact .pc-kicker .num {
  color: var(--neon);
  font-weight: 700;
  letter-spacing: .18em;
}

.page-contact h1 {
  margin: 0 0 1.15rem;
  font-size: clamp(2.05rem, 5.8vw, 3.35rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.022em;
  color: var(--text);
}

.page-contact .pc-hero-lead {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(.975rem, 1.4vw, 1.075rem);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .pc-hero-side {
  padding: 1.25rem 1.4rem;
  border: 1px solid var(--grid);
  border-left: 2px solid var(--neon);
  border-radius: var(--radius-md);
  background: linear-gradient(158deg, rgba(19, 26, 36, .94), rgba(13, 19, 28, .74));
}

.page-contact .pc-hero-side-title {
  margin: 0 0 .8rem;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--ice);
}

.page-contact .pc-hero-side ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .6rem;
}

.page-contact .pc-hero-side li {
  position: relative;
  padding-left: 1.2rem;
  font-size: .89rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .pc-hero-side li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: .55rem;
  height: 1px;
  background: var(--blue);
}

/* ---------- 章节骨架 ---------- */
.page-contact .pc-section {
  padding-block: clamp(2.5rem, 6vw, 4.25rem);
}

.page-contact .pc-section + .pc-section {
  border-top: 1px solid var(--grid);
}

.page-contact .pc-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: .6rem 2rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

@media (min-width: 820px) {
  .page-contact .pc-head {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
  }
}

.page-contact .pc-index {
  position: relative;
  display: inline-block;
  padding-left: .9rem;
  font-family: var(--mono);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .05em;
  color: var(--blue);
}

.page-contact .pc-index::before {
  content: "";
  position: absolute;
  left: 0;
  top: .1em;
  bottom: .06em;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--blue), var(--neon));
}

.page-contact .pc-head h2 {
  margin: 0 0 .7rem;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  font-weight: 750;
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--text);
}

.page-contact .pc-head p {
  margin: 0;
  max-width: 64ch;
  font-size: .965rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 联系通道 ---------- */
.page-contact .pc-channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

@media (min-width: 960px) {
  .page-contact .pc-channel-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .85fr);
    align-items: start;
  }
}

.page-contact .pc-channels {
  border-top: 1px solid var(--grid);
}

.page-contact .pc-channel {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  padding: clamp(1rem, 2.4vw, 1.5rem) clamp(.4rem, 1.4vw, 1rem);
  border-bottom: 1px solid var(--grid);
  border-left: 2px solid transparent;
  transition: border-left-color .18s var(--ease), background-color .18s var(--ease);
}

.page-contact .pc-channel:hover,
.page-contact .pc-channel:focus-within {
  border-left-color: var(--neon);
  background: linear-gradient(90deg, rgba(53, 240, 160, .07), transparent 74%);
}

.page-contact .pc-channel-label {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-contact .pc-channel-value {
  position: relative;
  align-self: flex-start;
  font-family: var(--mono);
  font-size: clamp(1.02rem, 2.3vw, 1.45rem);
  font-weight: 700;
  letter-spacing: .01em;
  line-height: 1.35;
  color: var(--text);
  word-break: break-word;
}

.page-contact .pc-channel-value::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -.12em;
  width: 100%;
  height: 1px;
  background: var(--neon);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .18s var(--ease);
}

.page-contact .pc-channel:hover .pc-channel-value::after,
.page-contact .pc-channel:focus-within .pc-channel-value::after {
  transform: scaleX(1);
}

.page-contact .pc-channel-note {
  max-width: 48ch;
  font-size: .875rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .pc-channel-aside {
  display: grid;
  gap: 1rem;
}

.page-contact .pc-channel-aside .figure {
  margin: 0;
}

.page-contact .pc-channel-aside .figure-media {
  border: 1px solid var(--grid);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--panel-deep);
}

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

.page-contact .pc-channel-aside .figure-caption {
  margin-top: .6rem;
  font-size: .78rem;
  letter-spacing: .02em;
  color: var(--muted);
}

.page-contact .pc-aside-note {
  padding: 1rem 1.15rem;
  border: 1px dashed var(--grid);
  border-radius: var(--radius-md);
  background: rgba(19, 26, 36, .6);
}

.page-contact .pc-aside-note-title {
  margin: 0 0 .45rem;
  font-family: var(--mono);
  font-size: .73rem;
  letter-spacing: .14em;
  color: var(--neon);
}

.page-contact .pc-aside-note p:last-child {
  margin: 0;
  font-size: .875rem;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 数据纠错 ---------- */
.page-contact .pc-correction-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

@media (min-width: 900px) {
  .page-contact .pc-correction-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

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

.page-contact .pc-correction-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .3rem 1.15rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .pc-correction-num {
  padding-top: .3em;
  font-family: var(--mono);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-contact .pc-correction-list h3 {
  margin: 0 0 .3rem;
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: .01em;
  color: var(--text);
}

.page-contact .pc-correction-list p {
  margin: 0;
  font-size: .895rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .pc-correction-send {
  position: relative;
  padding: clamp(1.25rem, 3vw, 1.8rem);
  border: 1px solid var(--grid);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(47, 125, 255, .15), transparent 62%),
    var(--panel);
  overflow: hidden;
}

.page-contact .pc-correction-send::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.3rem;
  bottom: 1.3rem;
  width: 2px;
  background: linear-gradient(180deg, var(--neon), rgba(53, 240, 160, 0));
}

.page-contact .pc-send-label {
  margin: 0 0 .55rem;
  font-family: var(--mono);
  font-size: .71rem;
  letter-spacing: .16em;
  color: var(--ice);
}

.page-contact .pc-send-value {
  margin: 0 0 .9rem;
  font-family: var(--mono);
  font-size: clamp(.93rem, 2.1vw, 1.2rem);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--neon);
  word-break: break-all;
}

.page-contact .pc-send-note {
  margin: 0 0 .9rem;
  font-size: .875rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .pc-send-links {
  margin: 0;
  padding-top: .9rem;
  border-top: 1px solid var(--grid);
  font-size: .86rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 通用内联链接 ---------- */
.page-contact .pc-link {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(168, 212, 255, .35);
  transition: color .18s var(--ease), border-bottom-color .18s var(--ease);
}

.page-contact .pc-link:hover,
.page-contact .pc-link:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* ---------- 合作 ---------- */
.page-contact .pc-coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 2.5vw, 1.5rem);
}

@media (min-width: 840px) {
  .page-contact .pc-coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .pc-coop {
  position: relative;
  padding: clamp(1.4rem, 3vw, 2.1rem);
  border: 1px solid var(--grid);
  border-radius: var(--radius-lg);
  background: linear-gradient(158deg, var(--panel) 0%, var(--panel-deep) 100%);
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}

.page-contact .pc-coop::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(1.4rem, 3vw, 2.1rem);
  width: 3px;
  height: 2.2rem;
  border-radius: 0 2px 2px 0;
}

.page-contact .pc-coop--data::before {
  background: var(--blue);
}

.page-contact .pc-coop--media::before {
  background: var(--amber);
}

.page-contact .pc-coop:hover {
  border-color: var(--neon);
  transform: translateY(-2px);
}

.page-contact .pc-coop h3 {
  margin: 0 0 .75rem;
  font-size: 1.14rem;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--text);
}

.page-contact .pc-coop > p {
  margin: 0 0 1.1rem;
  font-size: .92rem;
  line-height: 1.82;
  color: var(--muted);
}

.page-contact .pc-coop ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .55rem;
}

.page-contact .pc-coop li {
  position: relative;
  padding-left: 1.2rem;
  font-size: .87rem;
  line-height: 1.72;
  color: var(--ice);
}

.page-contact .pc-coop li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: .55rem;
  height: 1px;
  background: currentColor;
  opacity: .6;
}

.page-contact .pc-coop-foot {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding-top: 1.15rem;
  border-top: 1px solid var(--grid);
  font-size: .9rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .pc-coop-foot .num {
  color: var(--ice);
  font-weight: 700;
}

/* ---------- 处理节奏 ---------- */
.page-contact .pc-process-figure {
  margin: 0 0 clamp(1.6rem, 4vw, 2.4rem);
}

.page-contact .pc-process-figure .figure-media {
  border: 1px solid var(--grid);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--panel-deep);
}

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

.page-contact .pc-process {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3vw, 2rem);
}

.page-contact .pc-process li {
  position: relative;
  padding-top: 1.7rem;
}

.page-contact .pc-process-node {
  position: absolute;
  left: 0;
  top: 0;
  width: .85rem;
  height: .85rem;
  border-radius: 50%;
  border: 2px solid var(--blue);
  background: var(--ink);
}

.page-contact .pc-process li:nth-child(2) .pc-process-node {
  border-color: var(--neon);
}

.page-contact .pc-process li:nth-child(3) .pc-process-node {
  border-color: var(--amber);
}

.page-contact .pc-process h3 {
  margin: 0 0 .45rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.page-contact .pc-process p {
  margin: 0;
  font-size: .89rem;
  line-height: 1.8;
  color: var(--muted);
}

@media (min-width: 780px) {
  .page-contact .pc-process {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(1.5rem, 3vw, 2.5rem);
  }

  .page-contact .pc-process::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: .42rem;
    height: 1px;
    background: linear-gradient(90deg, var(--blue) 0%, var(--neon) 58%, rgba(53, 240, 160, .12) 100%);
  }
}

/* ---------- 收尾 ---------- */
.page-contact .pc-outro {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding-top: clamp(2rem, 5vw, 3rem);
  border-top: 1px solid var(--grid);
}

.page-contact .pc-outro-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
  align-items: center;
  padding: clamp(1.5rem, 4vw, 2.4rem);
  border: 1px solid var(--grid);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(95% 130% at 0% 0%, rgba(47, 125, 255, .18), transparent 64%),
    var(--panel);
}

.page-contact .pc-outro h2 {
  margin: 0 0 .65rem;
  font-size: clamp(1.3rem, 2.8vw, 1.75rem);
  font-weight: 750;
  letter-spacing: -.012em;
  color: var(--text);
}

.page-contact .pc-outro p {
  margin: 0;
  max-width: 60ch;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .pc-outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

@media (min-width: 840px) {
  .page-contact .pc-outro-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2.25rem;
  }

  .page-contact .pc-outro-actions {
    flex-wrap: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-channel,
  .page-contact .pc-channel-value::after,
  .page-contact .pc-coop,
  .page-contact .pc-link {
    transition: none;
  }

  .page-contact .pc-coop:hover {
    transform: none;
  }
}