/* ===== 反馈通道 · 页面专属样式 · 作用域 .page-contact ===== */
.page-contact {
  --pc-panel: rgba(18, 30, 26, .78);
  --pc-line: rgba(44, 71, 64, .6);
  --pc-line-strong: rgba(44, 71, 64, .95);
  background-image:
    linear-gradient(to right, rgba(44, 71, 64, .16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(44, 71, 64, .16) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
}

.page-contact .breadcrumbs {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  padding-block: clamp(26px, 4.5vw, 52px) clamp(34px, 6vw, 70px);
}

.page-contact .pc-hero h1 {
  margin: 16px 0 0;
  max-width: 20ch;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--warm);
}

.page-contact .pc-hero .prose__lede {
  margin-top: 18px;
  max-width: 46ch;
}

/* 锚点快速跳转 */
.page-contact .contact-jump {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .contact-jump a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--soft);
  text-decoration: none;
  background: rgba(18, 30, 26, .72);
  border: 1px solid var(--line);
  clip-path: var(--cut-path-sm);
  transition: color .16s var(--ease), border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-contact .contact-jump a::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  background: var(--lime);
  transform: rotate(45deg);
}

.page-contact .contact-jump a:hover,
.page-contact .contact-jump a:focus-visible {
  color: var(--warm);
  border-color: var(--lime);
  background: rgba(18, 30, 26, .95);
}

/* ---------- 通用章节标题 ---------- */
.page-contact .section__title {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.15;
  letter-spacing: -.015em;
  font-weight: 800;
  color: var(--warm);
}

.page-contact .pc-lead {
  margin: 12px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--soft);
}

/* ---------- 02 联系渠道 ---------- */
.page-contact .pc-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
}

.page-contact .channel-list {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-contact .channel-card {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 20px 20px 16px;
  background: var(--pc-panel);
  border: 1px solid var(--pc-line);
  clip-path: var(--cut-path-sm);
  transition: border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--lime);
  background: rgba(18, 30, 26, .95);
}

.page-contact .channel-tag {
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--soft);
  border-left: 2px solid var(--purple);
  padding-left: 9px;
  line-height: 1;
}

.page-contact .channel-name {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--warm);
}

.page-contact .channel-val {
  margin: 0 0 9px;
  max-width: 100%;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.62;
  color: var(--warm);
  overflow-wrap: anywhere;
}

.page-contact .channel-val--mail {
  display: inline-block;
  color: var(--lime);
  border-bottom: 1px dashed rgba(199, 255, 60, .5);
  padding-bottom: 3px;
}

.page-contact .channel-use {
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--soft);
}

.page-contact .pc-split__aside {
  margin: 0;
}

/* ---------- 03 提交前 ---------- */
.page-contact .prep-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-line-strong);
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--pc-line-strong);
}

.page-contact .prep-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--lime);
  padding-top: 4px;
}

.page-contact .prep-copy h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--warm);
}

.page-contact .prep-copy p {
  margin: 0;
  max-width: 54ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--soft);
}

.page-contact .prep-foot {
  margin: 24px 0 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--soft);
}

.page-contact .prep-foot a,
.page-contact .path-note a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(199, 255, 60, .4);
  transition: border-color .16s var(--ease);
}

.page-contact .prep-foot a:hover,
.page-contact .path-note a:hover,
.page-contact .prep-foot a:focus-visible,
.page-contact .path-note a:focus-visible {
  border-bottom-color: var(--lime);
}

/* ---------- 04 处理路径 ---------- */
.page-contact .pc-flow {
  margin: clamp(22px, 3.5vw, 34px) 0 0;
}

.page-contact .path-list {
  display: grid;
  gap: 12px;
  margin-top: clamp(22px, 3.5vw, 32px);
}

.page-contact .path-head {
  margin: 0;
}

.page-contact .path-item {
  background: var(--pc-panel);
  border: 1px solid var(--pc-line);
  clip-path: var(--cut-path-sm);
  transition: border-color .16s var(--ease);
}

.page-contact .path-item:hover {
  border-color: rgba(199, 255, 60, .5);
}

.page-contact .path-item:has(.path-trigger[aria-expanded="true"]) {
  border-color: rgba(199, 255, 60, .65);
}

.page-contact .path-trigger {
  width: 100%;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: transparent;
  border: 0;
  font: inherit;
  text-align: left;
  color: var(--warm);
  cursor: pointer;
}

.page-contact .path-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: .1em;
  color: var(--purple);
  border: 1px solid rgba(124, 92, 255, .45);
  padding: 4px 7px;
}

.page-contact .path-name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .01em;
}

.page-contact .path-mark {
  position: relative;
  width: 12px;
  height: 12px;
}

.page-contact .path-mark::before,
.page-contact .path-mark::after {
  content: "";
  position: absolute;
  background: var(--lime);
  transition: transform .16s var(--ease), opacity .16s var(--ease);
}

.page-contact .path-mark::before {
  left: 0;
  top: 5px;
  width: 12px;
  height: 2px;
}

.page-contact .path-mark::after {
  left: 5px;
  top: 0;
  width: 2px;
  height: 12px;
}

.page-contact .path-trigger[aria-expanded="true"] .path-mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-contact .disclosure__panel {
  margin: 0 20px;
  padding: 16px 0 22px;
  border-top: 1px dashed rgba(44, 71, 64, .8);
}

.page-contact .path-steps {
  list-style: none;
  counter-reset: pc-step;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .path-steps li {
  position: relative;
  padding-left: 28px;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--soft);
}

.page-contact .path-steps li::before {
  counter-increment: pc-step;
  content: counter(pc-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mint);
}

.page-contact .path-note {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--soft);
}

/* ---------- 05 在线时段 ---------- */
.page-contact .hours-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .hours-card {
  padding: clamp(24px, 3vw, 34px);
  background: var(--pc-panel);
  border: 1px solid var(--pc-line);
  clip-path: var(--cut-path);
}

.page-contact .hours-card--urgent {
  background: rgba(255, 179, 71, .07);
  border-color: rgba(255, 179, 71, .38);
}

.page-contact .hours-num {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.1;
  letter-spacing: .01em;
  color: var(--lime);
}

.page-contact .hours-title {
  margin: 14px 0 0;
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--warm);
}

.page-contact .hours-copy {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--soft);
}

.page-contact .hours-mail {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .01em;
  color: var(--soft);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 860px) {
  .page-contact .hours-grid {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-split {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-contact .pc-split__aside {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-contact .prep-item {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 22px;
  }
}

@media (max-width: 560px) {
  .page-contact .channel-card {
    grid-template-columns: 1fr;
  }

  .page-contact .channel-tag {
    writing-mode: horizontal-tb;
    text-orientation: mixed;
    border-left: 0;
    border-bottom: 1px solid var(--purple);
    padding: 0 0 6px;
    letter-spacing: .24em;
  }
}