/* ===== 反馈通道 · 页面专属样式 ===== */
.page-contact {
  --pc-panel-top: rgba(19, 26, 58, .98);
  --pc-panel-bot: rgba(11, 16, 36, .96);
  --pc-hair: rgba(232, 236, 255, .05);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding: clamp(22px, 4vw, 44px) 0 clamp(38px, 5vw, 72px);
  overflow: hidden;
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  top: -110px;
  right: -14%;
  width: min(700px, 82vw);
  height: 470px;
  background:
    radial-gradient(58% 62% at 62% 42%, rgba(108, 77, 246, .34), rgba(34, 211, 238, .09) 58%, transparent 76%);
  transform: rotate(-9deg);
  pointer-events: none;
  z-index: 0;
}

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

.page-contact .pc-hero__grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 46px);
  align-items: center;
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .pc-hero__intro .lead {
  max-width: 42ch;
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.6vw, 30px);
}

.page-contact .pc-hero__media {
  position: relative;
  aspect-ratio: 16 / 8;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.page-contact .pc-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(142deg, rgba(34, 211, 238, .16), transparent 48%, rgba(108, 77, 246, .24));
  pointer-events: none;
}

/* ---------- 联系信息板 ---------- */
.page-contact .pc-board {
  position: relative;
  margin-top: clamp(26px, 3.6vw, 48px);
  padding: clamp(22px, 3vw, 34px);
  display: grid;
  gap: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background: linear-gradient(158deg, var(--pc-panel-top) 0%, var(--pc-panel-bot) 62%, rgba(5, 7, 15, .98) 100%);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-contact .pc-board::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--violet), var(--cyan));
  z-index: 0;
}

.page-contact .pc-board::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, var(--pc-hair) 0 1px, transparent 1px 15px);
  pointer-events: none;
  z-index: 0;
}

.page-contact .pc-board__cell {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-contact .pc-board__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--ink-dim);
}

.page-contact .pc-board__val {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.5vw, 19px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: .02em;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .pc-board__val--cyan {
  color: var(--cyan);
}

.page-contact .pc-board__val--gold {
  color: var(--gold);
}

.page-contact .pc-board__use {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .pc-board__note {
  margin: clamp(14px, 1.8vw, 20px) 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--ink-dim);
}

/* ---------- 通用区块 ---------- */
.page-contact .pc-section {
  position: relative;
  padding: clamp(44px, 6vw, 88px) 0;
}

.page-contact .pc-section--band {
  background: linear-gradient(180deg, var(--deep) 0%, var(--void) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-head {
  max-width: 720px;
}

.page-contact .pc-head__note {
  margin: 14px 0 0;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-dim);
}

/* ---------- 问题分类 ---------- */
.page-contact .pc-ask {
  margin-top: clamp(24px, 3vw, 38px);
  display: grid;
  gap: 12px;
}

.page-contact .pc-ask__item {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--panel);
  overflow: hidden;
  transition: border-color .22s var(--ease), background .22s var(--ease);
}

.page-contact .pc-ask__item[open] {
  border-color: rgba(108, 77, 246, .62);
  background: linear-gradient(152deg, var(--pc-panel-top) 0%, var(--pc-panel-bot) 100%);
}

.page-contact .pc-ask__sum {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 4px 8px;
  padding: clamp(16px, 2vw, 22px) clamp(44px, 4.4vw, 62px) clamp(16px, 2vw, 22px) clamp(18px, 2.4vw, 26px);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .pc-ask__sum::after {
  content: "";
  position: absolute;
  right: clamp(20px, 2.6vw, 30px);
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -7px;
  border-right: 2px solid var(--violet-soft);
  border-bottom: 2px solid var(--violet-soft);
  transform: rotate(45deg);
  transition: transform .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .pc-ask__item[open] .pc-ask__sum::after {
  transform: rotate(-135deg);
  border-color: var(--cyan);
}

.page-contact .pc-ask__idx {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--gold);
  padding-top: 4px;
}

.page-contact .pc-ask__name {
  grid-column: 2;
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-contact .pc-ask__brief {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-dim);
}

.page-contact .pc-ask__body {
  padding: 18px clamp(18px, 2.4vw, 26px) clamp(20px, 2.6vw, 26px);
  border-top: 1px dashed var(--line);
}

.page-contact .pc-ask__lead {
  margin: 0 0 16px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

.page-contact .pc-clue li {
  padding: 12px 14px 12px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid rgba(108, 77, 246, .6);
  border-radius: var(--r-sm);
  background: rgba(5, 7, 15, .5);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-dim);
}

.page-contact .pc-clue__k {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--violet-soft);
}

/* ---------- 提交前准备 ---------- */
.page-contact .pc-brief {
  margin-top: clamp(24px, 3vw, 38px);
  display: grid;
  gap: 14px;
}

.page-contact .pc-brief__item {
  position: relative;
  padding: clamp(18px, 2vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(19, 26, 58, .9), rgba(11, 16, 36, .82));
  overflow: hidden;
}

.page-contact .pc-brief__item::after {
  content: "";
  position: absolute;
  right: -34px;
  top: -34px;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, .16), transparent 70%);
  pointer-events: none;
}

.page-contact .pc-brief__num {
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

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

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

/* ---------- 处理节奏 ---------- */
.page-contact .pc-rhythm {
  display: grid;
  gap: clamp(26px, 3.4vw, 46px);
  margin-top: clamp(24px, 3vw, 38px);
}

.page-contact .pc-rhythm__list {
  min-width: 0;
}

.page-contact .pc-stat {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line);
}

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

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

.page-contact .pc-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--cyan);
  word-break: break-word;
}

.page-contact .pc-stat__label {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .pc-rhythm__media {
  position: relative;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow);
}

/* ---------- 来访说明 ---------- */
.page-contact .pc-visit {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  margin-top: clamp(24px, 3vw, 36px);
}

.page-contact .pc-visit__card {
  position: relative;
  padding: clamp(22px, 2.8vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, rgba(19, 26, 58, .95), rgba(11, 16, 36, .9));
}

.page-contact .pc-visit__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(22px, 2.8vw, 32px);
  width: 3px;
  height: 46%;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--violet), rgba(34, 211, 238, .2));
}

.page-contact .pc-visit__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--ink-dim);
}

.page-contact .pc-visit__addr {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 1.7vw, 22px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--ink);
}

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

.page-contact .pc-visit__title {
  margin: 0 0 14px;
  font-size: clamp(19px, 1.8vw, 23px);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-contact .pc-visit__text p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .pc-visit__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 18px;
}

/* ---------- 相关入口 ---------- */
.page-contact .pc-cross {
  padding-bottom: clamp(40px, 5vw, 76px);
}

.page-contact .pc-cross__grid {
  display: grid;
  gap: 12px;
}

.page-contact .pc-cross__link {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(19, 26, 58, .55);
  text-decoration: none;
  transition: border-color .2s var(--ease), transform .2s var(--ease), background .2s var(--ease);
}

.page-contact .pc-cross__link:hover,
.page-contact .pc-cross__link:focus-visible {
  border-color: var(--violet);
  background: rgba(19, 26, 58, .9);
  transform: translateY(-3px);
}

.page-contact .pc-cross__k {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-contact .pc-cross__t {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
}

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

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

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

@media (min-width: 860px) {
  .page-contact .pc-board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-board__cell + .pc-board__cell {
    padding-left: clamp(18px, 2.2vw, 30px);
    border-left: 1px solid var(--line);
  }

  .page-contact .pc-stat {
    grid-template-columns: minmax(150px, auto) minmax(0, 1fr);
    align-items: baseline;
    gap: 8px 22px;
    padding: 17px 0;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(30px, 4vw, 60px);
  }

  .page-contact .pc-rhythm {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(34px, 5vw, 78px);
  }

  .page-contact .pc-visit {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

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

  .page-contact .pc-cross__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-ask__item,
  .page-contact .pc-ask__sum::after,
  .page-contact .pc-cross__link {
    transition: none;
  }

  .page-contact .pc-cross__link:hover,
  .page-contact .pc-cross__link:focus-visible {
    transform: none;
  }
}
<<<END>>>