/* ==========================================================
   反馈通道 / page-contact
   移动优先，900px 与 960px 处扩展为分栏
   ========================================================== */

.page-contact {
  background: var(--ink-900);
  color: var(--paper-050);
  overflow-x: hidden;
}

/* ---------- 面包屑带 ---------- */
.page-contact .pc-crumb {
  background: var(--ink-900);
  padding: calc(var(--step) * 1.5) 0 0;
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
}

.page-contact .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 10px;
  color: var(--gray-500);
}

.page-contact .breadcrumb__link {
  color: var(--gray-200);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .12s var(--ease), border-color .12s var(--ease);
}

.page-contact .breadcrumb__link:hover {
  color: var(--paper-050);
  border-bottom-color: var(--orange-500);
}

.page-contact .breadcrumb__link[aria-current="page"] {
  color: var(--orange-300);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  background: var(--ink-900);
  padding: calc(var(--step) * 1.75) 0 calc(var(--step) * 3);
}

.page-contact .pc-hero::before {
  content: "36";
  position: absolute;
  right: -2%;
  top: 4%;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(160px, 40vw, 380px);
  line-height: .78;
  letter-spacing: -.04em;
  color: rgba(241, 227, 195, .045);
  pointer-events: none;
  user-select: none;
}

.page-contact .pc-hero > .container {
  position: relative;
  z-index: 1;
}

.page-contact .pc-hero__eyebrow {
  margin: 0 0 14px;
  color: var(--orange-300);
}

.page-contact .pc-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(38px, 8.4vw, 78px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--paper-050);
}

.page-contact .pc-hero__lede {
  max-width: 34em;
  margin: 0 0 28px;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--gray-200);
}

.page-contact .pc-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .pc-hero__jump a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: var(--fs-14);
  color: var(--gray-200);
  text-decoration: none;
  transition: border-color .12s var(--ease), color .12s var(--ease), background-color .12s var(--ease);
}

.page-contact .pc-hero__jump a:hover,
.page-contact .pc-hero__jump a:focus-visible {
  border-color: var(--orange-500);
  background: var(--glass);
  color: var(--paper-050);
}

.page-contact .pc-hero__figure {
  position: relative;
  z-index: 1;
  margin-top: calc(var(--step) * 2);
}

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

.page-contact .pc-hero__caption {
  margin: 12px 0 0;
  color: var(--gray-500);
}

/* ---------- 通用分带 ---------- */
.page-contact .pc-band {
  position: relative;
  padding: calc(var(--step) * 3) 0;
}

.page-contact .pc-band--ink {
  background: var(--ink-900);
  color: var(--paper-050);
}

.page-contact .pc-band--paper {
  background-color: var(--paper-100);
  background-image: repeating-linear-gradient(90deg,
      rgba(10, 26, 43, .035) 0 1px,
      transparent 1px 48px);
  color: var(--ink-900);
}

/* ---------- 章节标题 ---------- */
.page-contact .pc-head {
  max-width: 46em;
  margin-bottom: calc(var(--step) * 1.75);
}

.page-contact .pc-head .eyebrow {
  margin: 0 0 12px;
}

.page-contact .pc-head__title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.22;
  letter-spacing: -.02em;
}

.page-contact .pc-head__sub {
  margin: 0;
  opacity: .78;
  font-size: var(--fs-17);
  line-height: 1.75;
  max-width: 40em;
}

/* ---------- 01 三张错位卡片 ---------- */
.page-contact .pc-deck {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--step);
}

.page-contact .pc-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: calc(var(--step) * 1.25);
  background: var(--paper-050);
  border: 1px solid rgba(10, 26, 43, .12);
  border-radius: 2px;
  transition: transform .18s var(--ease), border-color .12s var(--ease), box-shadow .18s var(--ease);
}

.page-contact .pc-card:hover,
.page-contact .pc-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--orange-500);
  box-shadow: 0 20px 38px -24px rgba(10, 26, 43, .6);
}

.page-contact .pc-card__no {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--orange-500);
}

.page-contact .pc-card__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: var(--fs-22);
  line-height: 1.3;
  color: var(--ink-900);
}

.page-contact .pc-card__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-800);
}

.page-contact .pc-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: rgba(10, 26, 43, .06);
  border-left: 3px solid var(--orange-500);
}

.page-contact .pc-contact__value {
  flex: 1 1 60%;
  font-size: var(--fs-14);
  font-weight: 600;
  color: var(--ink-900);
  overflow-wrap: anywhere;
}

.page-contact .pc-card__note {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.65;
  color: var(--gray-500);
}

/* ---------- 复制按钮 ---------- */
.page-contact .pc-copy {
  flex: 0 0 auto;
  margin-left: auto;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--ink-900);
  background: transparent;
  border: 1px solid rgba(10, 26, 43, .3);
  border-radius: 2px;
  cursor: pointer;
  transition: background-color .12s var(--ease), border-color .12s var(--ease), color .12s var(--ease);
}

.page-contact .pc-copy:hover {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: #fff;
}

.page-contact .pc-copy.is-copied {
  background: var(--green-600);
  border-color: var(--green-600);
  color: #fff;
}

.page-contact .pc-copy--paper {
  margin-left: 0;
  margin-top: 16px;
  border-color: rgba(10, 26, 43, .34);
}

/* ---------- 02 提交前准备清单 ---------- */
.page-contact .pc-prepare {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--step) * 1.75);
}

.page-contact .pc-prepare__lead .eyebrow {
  margin: 0 0 12px;
}

.page-contact .pc-prepare__tip {
  margin: 18px 0 0;
  padding: 14px 16px;
  background: var(--glass);
  border-left: 3px solid var(--orange-500);
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray-200);
}

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

.page-contact .pc-checklist__item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  transition: background-color .12s var(--ease), padding-left .18s var(--ease);
}

.page-contact .pc-checklist__item:hover {
  background: var(--glass);
  padding-left: 10px;
}

.page-contact .pc-checklist__no {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: var(--fs-14);
  letter-spacing: .08em;
  color: var(--orange-500);
}

.page-contact .pc-checklist__text h3 {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: var(--fs-17);
  line-height: 1.45;
  color: var(--paper-050);
}

.page-contact .pc-checklist__text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray-200);
}

/* ---------- 03 响应时段 ---------- */
.page-contact .pc-window {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--step) * 1.75);
}

.page-contact .pc-window__intro {
  margin: 0 0 16px;
  font-size: var(--fs-17);
  line-height: 1.78;
  color: var(--ink-800);
}

.page-contact .pc-window__list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(10, 26, 43, .16);
}

.page-contact .pc-window__list li {
  position: relative;
  padding: 12px 0 12px 24px;
  border-bottom: 1px solid rgba(10, 26, 43, .16);
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-900);
}

.page-contact .pc-window__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 23px;
  width: 12px;
  height: 2px;
  background: var(--orange-500);
}

.page-contact .pc-window__link {
  margin: 0;
  font-size: var(--fs-14);
  color: var(--gray-500);
}

.page-contact .pc-window__link a {
  color: var(--orange-500);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  transition: color .12s var(--ease);
}

.page-contact .pc-window__link a:hover {
  color: var(--ink-900);
}

.page-contact .pc-figure--small img {
  border-radius: 2px;
}

/* 时间带 */
.page-contact .pc-timeband {
  display: flex;
  overflow: hidden;
  margin-top: calc(var(--step) * 1.75);
  border: 1px solid rgba(10, 26, 43, .18);
  border-radius: 2px;
}

.page-contact .pc-timeband__seg {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 8px 6px;
  font-size: 11px;
  letter-spacing: .06em;
  line-height: 1.3;
  text-align: center;
}

.page-contact .pc-timeband__seg--night {
  flex: 3 1 0;
  min-width: 36px;
  background-image: repeating-linear-gradient(135deg,
      rgba(10, 26, 43, .07) 0 6px,
      rgba(10, 26, 43, .13) 6px 12px);
  color: var(--gray-500);
}

.page-contact .pc-timeband__seg--live {
  flex: 3 1 0;
  background-image: linear-gradient(90deg, var(--orange-500), var(--orange-300));
  color: #fff;
  font-weight: 700;
}

/* ---------- 04 常见反馈类型 ---------- */
.page-contact .pc-types {
  border-top: 1px solid var(--line);
}

.page-contact .pc-type {
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-type__sum {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  transition: background-color .12s var(--ease), padding-left .18s var(--ease);
}

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

.page-contact .pc-type__sum:hover {
  background: var(--glass);
  padding-left: 10px;
}

.page-contact .pc-type__no {
  flex: 0 0 auto;
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--orange-500);
}

.page-contact .pc-type__name {
  flex: 1 1 auto;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(18px, 3.8vw, 22px);
  line-height: 1.4;
  color: var(--paper-050);
}

.page-contact .pc-type__more {
  flex: 0 0 auto;
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--gray-500);
  transition: color .12s var(--ease);
}

.page-contact .pc-type[open] .pc-type__more {
  color: var(--orange-500);
}

.page-contact .pc-type__body {
  padding: 0 0 22px 32px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--gray-200);
}

.page-contact .pc-type__body p {
  margin: 0 0 10px;
}

.page-contact .pc-type__body p:last-child {
  margin-bottom: 0;
}

.page-contact .pc-type__body a {
  color: var(--orange-300);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-contact .pc-type__body a:hover {
  color: var(--paper-050);
}

/* ---------- 05 区域服务 ---------- */
.page-contact .pc-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  margin-bottom: calc(var(--step) * 1.75);
  background: rgba(10, 26, 43, .14);
  border: 1px solid rgba(10, 26, 43, .14);
}

.page-contact .pc-stat {
  padding: 20px 18px;
  background: var(--paper-050);
}

.page-contact .pc-stat__num {
  display: block;
  margin-bottom: 6px;
  font-size: var(--fs-32);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--orange-500);
}

.page-contact .pc-stat__label {
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--ink-800);
}

.page-contact .pc-region {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--step) * 1.5);
}

.page-contact .pc-region__body p {
  margin: 0 0 16px;
  font-size: var(--fs-17);
  line-height: 1.78;
  color: var(--ink-800);
}

.page-contact .pc-region__body p:last-child {
  margin-bottom: 0;
}

.page-contact .pc-region__aside {
  padding: calc(var(--step) * 1.25);
  background: var(--ink-900);
  border-left: 5px solid var(--orange-500);
  border-radius: 2px;
  color: var(--paper-100);
}

.page-contact .pc-region__aside-title {
  margin: 0 0 10px;
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--orange-300);
}

.page-contact .pc-region__aside p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
}

/* ---------- 06 到访说明 ---------- */
.page-contact .pc-visit {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--step) * 1.75);
}

.page-contact .pc-visit__text .eyebrow {
  margin: 0 0 12px;
}

.page-contact .pc-visit__lede {
  margin: 0 0 20px;
  font-size: var(--fs-17);
  line-height: 1.78;
  color: var(--gray-200);
  max-width: 34em;
}

.page-contact .pc-visit__list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .pc-visit__list li {
  position: relative;
  padding: 12px 0 12px 24px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.72;
  color: var(--gray-200);
}

.page-contact .pc-visit__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 23px;
  width: 12px;
  height: 2px;
  background: var(--orange-300);
}

.page-contact .pc-visit__link {
  margin: 0;
  font-size: var(--fs-14);
  color: var(--gray-500);
}

.page-contact .pc-visit__link a {
  color: var(--orange-300);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-contact .pc-visit__link a:hover {
  color: var(--paper-050);
}

.page-contact .pc-visit__card {
  padding: calc(var(--step) * 1.25);
  background: var(--paper-100);
  border-left: 5px solid var(--orange-500);
  border-radius: 2px;
  color: var(--ink-900);
}

.page-contact .pc-visit__label {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--gray-500);
}

.page-contact .pc-visit__addr {
  margin: 10px 0 18px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: var(--fs-22);
  line-height: 1.5;
}

.page-contact .pc-visit__meta {
  margin: 0 0 6px;
  font-size: var(--fs-14);
  color: var(--ink-800);
}

.page-contact .pc-visit__meta.mono {
  letter-spacing: .06em;
  color: var(--gray-500);
}

/* ---------- 底部相关入口 ---------- */
.page-contact .pc-next {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  margin-top: calc(var(--step) * 2);
  padding-top: calc(var(--step) * 1.25);
  border-top: 1px solid var(--line);
}

.page-contact .pc-next a {
  font-size: var(--fs-14);
  color: var(--paper-050);
  text-decoration: none;
  border-bottom: 1px solid var(--orange-500);
  padding-bottom: 2px;
  transition: color .12s var(--ease), border-color .12s var(--ease);
}

.page-contact .pc-next a:hover {
  color: var(--orange-300);
  border-bottom-color: var(--orange-300);
}

/* ==========================================================
   响应式
   ========================================================== */

@media (max-width: 720px) {
  .page-contact .pc-timeband__seg--night span {
    display: none;
  }

  .page-contact .pc-type__body {
    padding-left: 0;
  }
}

@media (min-width: 720px) {
  .page-contact .pc-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .pc-stat__num {
    font-size: var(--fs-52);
  }
}

@media (min-width: 900px) {
  .page-contact .pc-band {
    padding: calc(var(--step) * 4) 0;
  }

  .page-contact .pc-deck {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
    gap: calc(var(--step) * 1.5);
  }

  .page-contact .pc-card--b {
    margin-top: 40px;
  }

  .page-contact .pc-card--c {
    margin-top: 80px;
  }

  .page-contact .pc-prepare {
    grid-template-columns: 5fr 7fr;
    gap: calc(var(--step) * 2.5);
  }

  .page-contact .pc-window {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: calc(var(--step) * 2);
  }

  .page-contact .pc-region {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: calc(var(--step) * 2);
  }

  .page-contact .pc-visit {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: calc(var(--step) * 2);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-card,
  .page-contact .pc-checklist__item,
  .page-contact .pc-type__sum,
  .page-contact .pc-copy,
  .page-contact .pc-next a,
  .page-contact .pc-hero__jump a {
    transition: none;
  }

  .page-contact .pc-card:hover,
  .page-contact .pc-card:focus-within {
    transform: none;
  }
}