/* ================= 反馈通道 · 页面专属样式 ================= */

.page-contact {
  display: block;
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-top: 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-contact .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .breadcrumb a:hover {
  color: var(--gold-bright);
  border-bottom-color: var(--line-gold);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 4vw, 48px) 0 clamp(34px, 5vw, 62px);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 6vw, 60px);
  line-height: 1.12;
  font-weight: 300;
  letter-spacing: -.012em;
  color: var(--ivory);
}

.page-contact .contact-hero h1 .brush {
  color: var(--gold);
  font-weight: 700;
  padding: 0 2px;
}

.page-contact .contact-hero__lede {
  margin: 20px 0 0;
  max-width: 44em;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-contact .contact-hero__aside {
  border-left: 1px solid var(--line-gold);
  padding: 4px 0 4px 18px;
}

.page-contact .contact-hero__aside-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--gold-bright);
}

.page-contact .contact-hero__aside p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .contact-hero__aside .btn {
  margin-top: 16px;
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }

  .page-contact .contact-hero__aside {
    transform: translateY(22px);
  }
}

/* ---------- 章节通用 ---------- */
.page-contact .section {
  padding: clamp(38px, 6vw, 74px) 0 0;
}

.page-contact .head-split {
  display: block;
}

.page-contact .section__title {
  margin: 8px 0 0;
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 300;
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--ivory);
}

.page-contact .section__lede {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

@media (min-width: 880px) {
  .page-contact .head-split {
    display: grid;
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: end;
  }

  .page-contact .section__lede {
    margin: 0;
  }
}

/* ---------- 01 问题分类 ---------- */
.page-contact .topic-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-contact .topic-card {
  position: relative;
  overflow: hidden;
  padding: 22px 20px 24px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-contact .topic-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gold);
}

.page-contact .topic-card--red::before {
  background: var(--red);
}

.page-contact .topic-card--jade::before {
  background: var(--jade);
}

.page-contact .topic-card--violet::before {
  background: var(--violet);
}

.page-contact .topic-card__kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--mist);
}

.page-contact .topic-card h3 {
  margin: 10px 0 0;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--ivory);
}

.page-contact .topic-card p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .topic-card__need {
  padding-top: 12px;
  margin-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .topic-card__need strong {
  color: var(--gold);
  font-weight: 600;
}

@media (hover: hover) {
  .page-contact .topic-card:hover {
    transform: translateY(-4px);
    border-color: var(--line-gold);
    box-shadow: var(--shadow-sm);
  }
}

@media (min-width: 700px) {
  .page-contact .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-contact .topic-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .topic-card:nth-child(1) { grid-column: span 2; }
  .page-contact .topic-card:nth-child(2) { grid-column: span 4; }
  .page-contact .topic-card:nth-child(3) { grid-column: span 4; }
  .page-contact .topic-card:nth-child(4) { grid-column: span 2; }
}

/* ---------- 02 渠道与联系方式 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-contact .channel-figure {
  margin: 0 0 16px;
}

.page-contact .channel-stack {
  display: grid;
  gap: 12px;
}

.page-contact .channel-card {
  position: relative;
  padding: 16px 18px 18px;
  background-color: var(--ink-2);
  background-image: linear-gradient(148deg, rgba(226, 167, 46, .09), rgba(13, 10, 18, 0) 64%);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  transition: transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}

@media (hover: hover) {
  .page-contact .channel-card:hover {
    transform: translateY(-4px);
    border-color: var(--gold);
    box-shadow: var(--shadow-sm);
  }
}

.page-contact .channel-card--phone {
  background-image: linear-gradient(148deg, rgba(18, 185, 129, .1), rgba(13, 10, 18, 0) 66%);
}

.page-contact .channel-card--addr {
  background-image: linear-gradient(148deg, rgba(139, 92, 246, .12), rgba(13, 10, 18, 0) 66%);
  border-color: var(--line);
}

.page-contact .channel-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .channel-card__value {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.1vw, 23px);
  font-weight: 500;
  letter-spacing: .02em;
  line-height: 1.35;
  color: var(--gold-bright);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px solid transparent;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .channel-card__value:hover {
  color: var(--gold);
  border-bottom-color: var(--line-gold);
}

.page-contact .channel-card__value--addr {
  font-size: clamp(15px, 1.7vw, 18px);
  color: var(--ivory);
  line-height: 1.6;
}

.page-contact .channel-card__note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .route-panel {
  padding: 18px 18px 20px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-contact .route-panel + .route-panel {
  margin-top: 12px;
}

.page-contact .route-panel--call {
  border-color: rgba(18, 185, 129, .3);
}

.page-contact .route-panel__title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ivory);
}

.page-contact .route-list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .route-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--mist);
}

.page-contact .route-list li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: .62em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

.page-contact .route-panel--call .route-list li::before {
  border-color: var(--jade);
}

.page-contact .route-note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 1px solid var(--line-gold);
  font-size: 14px;
  line-height: 1.76;
  color: var(--mist);
}

@media (min-width: 940px) {
  .page-contact .channel-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }
}

/* ---------- 03 处理流程 ---------- */
.page-contact .flow-grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-contact .steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .steps__item {
  position: relative;
  margin-left: 15px;
  padding: 0 0 26px 46px;
  border-left: 1px solid var(--line);
}

.page-contact .steps__item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .steps__num {
  position: absolute;
  left: -16px;
  top: -2px;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--line-gold);
  color: var(--gold);
  font-size: 13px;
  letter-spacing: .04em;
}

.page-contact .steps__title {
  margin: 2px 0 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ivory);
}

.page-contact .steps__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .flow-hint {
  display: block;
  margin-top: 22px;
  padding: 13px 16px;
  border: 1px dashed var(--line-gold);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  text-decoration: none;
  transition: border-color .24s var(--ease), color .24s var(--ease);
}

.page-contact .flow-hint:hover {
  border-color: var(--gold);
  color: var(--ivory);
}

.page-contact .flow-aside .media-frame {
  margin: 0 0 16px;
}

.page-contact .eta-panel {
  padding: 18px 18px 20px;
  background: var(--ink-2);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
}

.page-contact .eta-panel__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-contact .eta-list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .eta-list li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 14px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.72;
}

.page-contact .eta-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .eta-list__key {
  color: var(--ivory);
}

.page-contact .eta-list__val {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--gold-bright);
}

@media (min-width: 940px) {
  .page-contact .flow-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

/* ---------- 04 投稿与合作 ---------- */
.page-contact .contrib-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-contact .contrib-sub {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--ivory);
}

.page-contact .checklist {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .checklist li {
  position: relative;
  padding-left: 30px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .52em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

.page-contact .contrib-note {
  margin: 20px 0 0;
  padding-left: 16px;
  border-left: 1px solid var(--line-gold);
  font-size: 15px;
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .contrib-note a {
  color: var(--gold-bright);
}

.page-contact .contrib-aside {
  padding: 20px 18px 22px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-contact .contrib-aside__title {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--ivory);
}

.page-contact .coop-list {
  display: grid;
  gap: 14px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .coop-list li {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.76;
  color: var(--mist);
}

.page-contact .coop-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .coop-list strong {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
  color: var(--ivory);
}

.page-contact .contrib-aside__foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contrib-aside__foot a {
  color: var(--gold-bright);
}

@media (min-width: 940px) {
  .page-contact .contrib-grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: start;
  }
}

/* ---------- 05 常见疑问 ---------- */
.page-contact .faq-grid {
  display: grid;
  margin-top: clamp(24px, 4vw, 40px);
  border-top: 1px solid var(--line);
}

.page-contact .faq-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .faq-item h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--ivory);
}

.page-contact .faq-item h3 .mono {
  margin-right: 8px;
  color: var(--gold);
  font-size: 13px;
  letter-spacing: .1em;
}

.page-contact .faq-item p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--mist);
}

@media (min-width: 860px) {
  .page-contact .faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 48px);
  }
}

/* ---------- 底部信息带 ---------- */
.page-contact .contact-band {
  margin-top: clamp(46px, 6vw, 86px);
  padding: 20px 0 18px;
  background: var(--ink-2);
  border-top: 1px solid var(--line-gold);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-band__track {
  display: flex;
  gap: clamp(22px, 4vw, 56px);
  overflow-x: auto;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.page-contact .contact-band__item {
  flex: 0 0 auto;
  min-width: 196px;
}

.page-contact .contact-band__item--wide {
  min-width: 260px;
}

.page-contact .contact-band__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-contact .contact-band__value {
  display: block;
  margin-top: 7px;
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: .02em;
  line-height: 1.55;
  color: var(--gold-bright);
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color .22s var(--ease);
}

.page-contact .contact-band__value:hover {
  color: var(--gold);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .topic-card,
  .page-contact .channel-card,
  .page-contact .flow-hint,
  .page-contact .channel-card__value,
  .page-contact .breadcrumb a {
    transition: none;
  }

  .page-contact .topic-card:hover,
  .page-contact .channel-card:hover {
    transform: none;
  }

  .page-contact .contact-hero__aside {
    transform: none;
  }
}