/* =========================================================
   page-contact · 反馈与联系
   作用域全部限定在 .page-contact 内
   ========================================================= */

.page-contact {
  background: var(--porcelain);
  color: var(--text-body);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(22px, 4.6vw, 48px) clamp(20px, 4vw, 38px);
  border-bottom: 1px solid var(--line);
  position: relative;
}
.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--cinnabar) 0, var(--gold) 42%, transparent 100%);
  opacity: .75;
}
.page-contact .contact-hero__head {
  max-width: 760px;
  margin-top: clamp(22px, 4vw, 44px);
}
.page-contact .contact-hero__head h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(27px, 5.2vw, 46px);
  line-height: 1.3;
  letter-spacing: -.012em;
  color: var(--ink);
  margin: 14px 0 20px;
}
.page-contact .hero-text {
  font-size: clamp(15px, 1.55vw, 17px);
  line-height: 1.88;
  color: var(--text-body);
  max-width: 60ch;
  margin: 0;
}

/* ---------- 主栅格 ---------- */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  padding-block: clamp(32px, 5vw, 58px) clamp(48px, 7vw, 92px);
}

@media (min-width: 900px) {
  .page-contact .contact-grid {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: 62px;
    align-items: start;
  }
}

/* ---------- 左侧栏 ---------- */
.page-contact .contact-rail {
  min-width: 0;
}
.page-contact .contact-rail__inner {
  display: grid;
  gap: 24px;
}
@media (min-width: 900px) {
  .page-contact .contact-rail__inner {
    position: sticky;
    top: 104px;
  }
}

/* 入口位置示意（纯 CSS 绘制的页面轮廓） */
.page-contact .contact-sketch {
  display: grid;
  gap: 10px;
}
.page-contact .contact-sketch__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--slate);
}
.page-contact .contact-sketch__frame {
  border: 1px solid var(--line-strong);
  background: var(--porcelain);
  padding: 12px 12px 10px;
  display: grid;
  gap: 8px;
  box-shadow: 6px 6px 0 -1px var(--paper), 7px 7px 0 -1px var(--line);
}
.page-contact .contact-sketch__top {
  height: 14px;
  background: linear-gradient(90deg, var(--slate) -20%, var(--paper) 78%);
  opacity: .55;
}
.page-contact .contact-sketch__mid {
  display: grid;
  gap: 6px;
}
.page-contact .contact-sketch__mid i {
  display: block;
  height: 6px;
  background: var(--paper);
}
.page-contact .contact-sketch__mid i:nth-child(2) {
  width: 82%;
}
.page-contact .contact-sketch__mid i:nth-child(3) {
  width: 64%;
}
.page-contact .contact-sketch__base {
  margin-top: 4px;
  border: 1px solid var(--cinnabar);
  background: linear-gradient(180deg, rgba(200, 64, 47, .16), rgba(200, 64, 47, .05));
  color: var(--cinnabar-deep);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-align: center;
  padding: 7px 0;
}
.page-contact .contact-sketch__caption {
  margin: 4px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* 关键数据速览 */
.page-contact .rail-facts {
  margin: 0;
  border-top: 1px solid var(--line);
}
.page-contact .rail-facts__row {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .rail-facts dt {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--text-muted);
}
.page-contact .rail-facts dd {
  margin: 0;
  text-align: right;
  font-size: 13px;
  color: var(--ink);
}

/* 目录 */
.page-contact .rail-nav {
  border-top: 2px solid var(--ink);
  padding-top: 12px;
}
.page-contact .rail-nav ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-contact .rail-nav a {
  display: block;
  position: relative;
  padding: 7px 0 7px 24px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-body);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.page-contact .rail-nav a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 13px;
  height: 1px;
  background: var(--line-strong);
  transition: background-color .2s var(--ease);
}
.page-contact .rail-nav a:hover {
  color: var(--cinnabar-deep);
}
.page-contact .rail-nav a:hover::before {
  background: var(--cinnabar);
}
.page-contact .rail-nav a:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}

@media (max-width: 899px) {
  .page-contact .rail-nav ol {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
  }
  .page-contact .rail-nav a {
    white-space: nowrap;
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }
  .page-contact .rail-nav a::before {
    display: none;
  }
}

/* ---------- 右侧内容流 ---------- */
.page-contact .contact-stream {
  display: grid;
  gap: clamp(42px, 6vw, 76px);
  min-width: 0;
}

.page-contact .contact-chapter {
  min-width: 0;
}
.page-contact .contact-chapter__head {
  border-top: 2px solid var(--ink);
  padding-top: 15px;
  margin-bottom: 22px;
}
.page-contact .contact-chapter__head .eyebrow {
  margin: 0;
}
.page-contact .contact-chapter__head h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(21px, 2.6vw, 28px);
  letter-spacing: -.006em;
  color: var(--ink);
  margin: 6px 0 0;
}
.page-contact .chapter-lede {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-body);
  max-width: 44em;
  margin: 0 0 22px;
}

/* 正文段落 */
.page-contact .prose p {
  margin: 0 0 15px;
  font-size: 15px;
  line-height: 1.85;
  max-width: 38em;
}
.page-contact .prose p:last-child {
  margin-bottom: 0;
}
.page-contact .prose a {
  color: var(--cinnabar-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-contact .prose a:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}

/* ---------- 其一 · 入口位置 ---------- */
.page-contact .entry-block {
  display: grid;
  gap: 24px;
}
@media (min-width: 760px) {
  .page-contact .entry-block {
    grid-template-columns: minmax(0, 1fr) minmax(0, 296px);
    gap: 34px;
    align-items: start;
  }
}
.page-contact .entry-block__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--porcelain);
  padding: 8px;
}
.page-contact .entry-block__figure .media-frame {
  display: block;
}
.page-contact .entry-block__figure .media-frame__caption {
  padding: 8px 4px 2px;
}

/* ---------- 其二 · 两类反馈 ---------- */
.page-contact .types-grid {
  margin-top: 4px;
}
.page-contact .type-card {
  padding: 24px 22px 22px;
  display: grid;
  gap: 12px;
  align-content: start;
}
.page-contact .type-card h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.45;
  color: var(--ink);
  margin: 0;
}
.page-contact .tick-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-contact .tick-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.74;
  color: var(--text-body);
}
.page-contact .tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 1px;
  background: var(--gold);
}

/* ---------- 其三 · 有效反馈所需信息 ---------- */
.page-contact .info-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.page-contact .info-list > li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .info-list__no {
  font-size: 13px;
  color: var(--gold);
  padding-top: 3px;
  letter-spacing: .06em;
}
.page-contact .info-list h3 {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 5px;
}
.page-contact .info-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--text-body);
  max-width: 40em;
}

/* ---------- 其四 · 处理流程（深色分区） ---------- */
.page-contact .contact-process {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--on-dark);
  padding: clamp(26px, 4vw, 42px) clamp(20px, 3.6vw, 42px);
}
.page-contact .contact-process::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(91, 107, 124, .16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 107, 124, .16) 1px, transparent 1px);
  background-size: 46px 46px;
  pointer-events: none;
}
.page-contact .contact-process > * {
  position: relative;
  z-index: 1;
}
.page-contact .contact-process .contact-chapter__head {
  border-top: 1px solid var(--gold);
}
.page-contact .contact-process .contact-chapter__head h2 {
  color: var(--porcelain);
}
.page-contact .contact-process .eyebrow {
  color: var(--gold-light);
}

.page-contact .process-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .process-list > li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid rgba(91, 107, 124, .42);
}
.page-contact .process-list > li:last-child {
  border-bottom: 1px solid rgba(91, 107, 124, .42);
}
.page-contact .process-list__no {
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--gold);
  padding-top: 2px;
}
.page-contact .process-list h3 {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--porcelain);
  margin: 0 0 6px;
}
.page-contact .process-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--on-dark);
  max-width: 40em;
}
.page-contact .process-note {
  margin: 22px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-size: 13px;
  line-height: 1.72;
  color: var(--gold-light);
}

/* ---------- 其五 · 其他联系途径 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: 28px;
}
@media (min-width: 760px) {
  .page-contact .channel-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 268px);
    gap: 38px;
    align-items: start;
  }
}
.page-contact .channel-list {
  margin: 0;
  border-top: 1px solid var(--line);
}
.page-contact .channel-list__item {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .channel-list dt {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--slate);
  margin-bottom: 6px;
}
.page-contact .channel-list dd {
  margin: 0;
}
.page-contact .channel-list__value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
  margin-bottom: 6px;
}
.page-contact .channel-list__note {
  font-size: 13px;
  line-height: 1.74;
  color: var(--text-muted);
  max-width: 40em;
}
.page-contact .channel-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--porcelain);
  padding: 8px;
}
.page-contact .channel-figure .media-frame__caption {
  padding: 8px 4px 2px;
}

/* ---------- 其六 · 对局相关问题 ---------- */
.page-contact .match-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 560px) {
  .page-contact .contact-hero__head h1 {
    font-size: 26px;
  }
  .page-contact .info-list > li {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
  }
  .page-contact .process-list > li {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 12px;
  }
  .page-contact .entry-block__figure,
  .page-contact .channel-figure {
    padding: 6px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .rail-nav a,
  .page-contact .rail-nav a::before {
    transition: none;
  }
}
</main>