/* 徒步装备指南 — 页面布局（首页 / 分类页 / 详情页共用，变量见 tokens.css，公共组件见 components.css） */

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 390px;
  background: #dfe4e2 url("../images/hero-trail.jpg") center / cover no-repeat;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(247, 248, 245, .55) 0%, rgba(247, 248, 245, .38) 30%, rgba(247, 248, 245, .08) 50%, rgba(247, 248, 245, 0) 62%);
}

.hero-inner {
  position: relative;
  padding-block: 40px 26px;
}

.hero h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 60px;
  line-height: 1.12;
  letter-spacing: .5px;
  color: #17241d;
  max-width: 660px;
}

.hero p {
  margin: 14px 0 0;
  max-width: 432px;
  font-size: 15.5px;
  line-height: 1.72;
  color: #2c3730;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 24px;
}

/* ---------- category grid ---------- */
.categories {
  background: var(--bg);
  padding: 56px 0 32px;
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.cat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  min-height: 142px;
  padding: 14px 20px 16px;
  border-radius: var(--radius);
  overflow: hidden;
  color: #fff;
  background: #4a5a4c;
}

.cat-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.cat-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(102deg, rgba(14, 26, 20, .38) 0%, rgba(14, 26, 20, .24) 40%, rgba(14, 26, 20, .04) 72%),
              linear-gradient(180deg, rgba(14, 26, 20, 0) 58%, rgba(14, 26, 20, .18) 100%);
}

.cat-card .icon {
  position: relative;
  z-index: 2;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  opacity: 1;
}

.cat-card h3 {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 20px;
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 1px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, .4);
}

.cat-card p {
  position: relative;
  z-index: 2;
  margin: 0;
  max-width: 336px;
  font-size: 13.5px;
  line-height: 1.62;
  color: rgba(255, 255, 255, .95);
  text-shadow: 0 1px 2px rgba(0, 0, 0, .3);
}

.cat-card:hover h3 { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- latest + picks ---------- */
.latest-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.045fr);
  gap: 12px;
  padding: 10px 0 14px;
}

.latest-list {
  list-style: none;
  margin-top: 2px;
  margin: 0;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.latest-list li + li { border-top: 1px solid var(--line); }

.latest-list a {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 3px 16px;
}

.latest-list a:hover .latest-title { color: var(--accent); }

.latest-thumb {
  width: 70px;
  height: 52px;
  border-radius: 2px;
  object-fit: cover;
  background: #d9ded6;
}

.latest-title {
  font-size: 14px;
  line-height: 1.45;
  color: var(--ink);
}

.latest-date {
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}
.more-link::after { content: "→"; }

.more-link:hover { text-decoration: underline; text-underline-offset: 3px; }

.picks {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow-card);
}

.pick-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.34fr) minmax(0, 1fr);
  grid-template-rows: auto 1fr;
  gap: 10px 16px;
}

.pick-cover {
  grid-column: 1;
  grid-row: 1;
  width: 100%;
  aspect-ratio: 2.55 / 1;
  object-fit: cover;
  border-radius: 2px;
  background: #d9ded6;
}

.pick-main { grid-column: 1; grid-row: 2; }

.pick-main h4 {
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.45;
}

.pick-main p {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.pick-list {
  grid-column: 2;
  grid-row: 1 / span 2;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
}

.pick-list li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.55;
}

.pick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.pick-list a:hover { color: var(--accent); }

/* ---------- checklist + difficulty ---------- */
.prep-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
  padding: 10px 0 18px;
}

.checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 18px;
  margin: 0;
  padding: 10px 16px;
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.checklist li {
  position: relative;
  padding: 2.5px 0 2.5px 22px;
  font-size: 13px;
  line-height: 1.45;
}

.checklist input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  margin: 0;
}

.checklist label { position: relative; cursor: pointer; }

.checklist label::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 4px;
  width: 13px;
  height: 13px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: var(--surface);
}

.checklist label::after {
  content: "";
  position: absolute;
  left: -18px;
  top: 7px;
  width: 6px;
  height: 3px;
  border-left: 1.5px solid #fff;
  border-bottom: 1.5px solid #fff;
  transform: rotate(-45deg);
  opacity: 0;
}

.checklist input:checked + label::before {
  background: var(--accent);
  border-color: var(--accent);
}

.checklist input:checked + label::after { opacity: 1; }

.checklist input:focus-visible + label::before {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.checklist li.done label { color: var(--muted); text-decoration: line-through; }

.check-progress {
  margin: 10px 0 0;
  font-size: 12.5px;
  color: var(--muted);
}

.difficulty-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  background: var(--surface);
  border: 1px solid var(--line);
}

.difficulty-table caption {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.difficulty-table th,
.difficulty-table td {
  padding: 4px 10px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.difficulty-table thead th {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  letter-spacing: .5px;
}

.difficulty-table tbody tr:nth-child(even) { background: #eae5dd; }

.difficulty-table tbody th { font-weight: 700; color: var(--accent-dark); }

/* ---------- safety + editorial ---------- */
.notes-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.06fr);
  gap: 36px;
  padding: 10px 0 28px;
}

.rules {
  list-style: none;
  counter-reset: rule;
  margin: 0;
  padding: 0;
}

.rules li {
  counter-increment: rule;
  position: relative;
  padding: 5px 0 5px 34px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink-soft);
}

.rules li::before {
  content: counter(rule);
  position: absolute;
  left: 0;
  top: 10px;
  width: 22px;
  height: 22px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  line-height: 20px;
  text-align: center;
}

.editorial p {
  margin: 0 0 6px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.editorial-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 140px;
  gap: 18px;
  align-items: start;
}

.editorial-body img {
  width: 140px;
  aspect-ratio: 1 / 1.05;
  object-fit: cover;
  border-radius: var(--radius);
}

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .nav { gap: 18px; }
  .nav a { font-size: 12.5px; }
  .hero h1 { font-size: 48px; }
  .cat-card h3 { font-size: 20px; }
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    z-index: 40;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 6px 24px 12px;
    max-height: calc(100vh - 72px);
    overflow: auto;
  }
  .nav[data-open="true"] { display: flex; }
  .nav a { padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
  .nav a[aria-current="page"]::after { bottom: 6px; left: 0; right: auto; width: 22px; }
  .hero { min-height: 0; background-position: 72% center; }
  .hero::before {
    background: linear-gradient(180deg, rgba(248, 249, 246, .96) 0%, rgba(248, 249, 246, .9) 58%, rgba(248, 249, 246, .55) 100%);
  }
  .hero-inner { padding-block: 34px 38px; }
  .hero h1 { font-size: 38px; }
  .hero p { font-size: 14.5px; line-height: 1.85; }
  .cat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .latest-block,
  .prep-block,
  .notes-block { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-about { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  :root { --gutter: 16px; }
  .header-inner { height: 62px; }
  .nav { top: 62px; }
  .brand { font-size: 18px; }
  .brand svg { width: 22px; height: 20px; }
  .hero h1 { font-size: 30px; line-height: 1.25; }
  .hero p { font-size: 14px; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 14px; }
  .cat-grid { grid-template-columns: minmax(0, 1fr); }
  .cat-card { min-height: 124px; }
  .cat-card h3 { font-size: 21px; }
  .cat-card p { max-width: none; }
  .section-title { font-size: 22px; }
  .latest-list a { grid-template-columns: 60px minmax(0, 1fr); row-gap: 2px; padding: 10px 12px; }
  .latest-thumb { width: 60px; height: 46px; }
  .latest-date { grid-column: 2; }
  .pick-grid { grid-template-columns: minmax(0, 1fr); }
  .pick-cover { grid-column: 1; grid-row: 1; }
  .pick-main { grid-column: 1; grid-row: 2; }
  .pick-list { grid-column: 1; grid-row: 3; }
  .checklist { grid-template-columns: minmax(0, 1fr); }
  .difficulty-table { font-size: 12px; }
  .difficulty-table th,
  .difficulty-table td { padding: 8px 8px; }
  .editorial-body { grid-template-columns: minmax(0, 1fr); }
  .editorial-body img { width: 100%; aspect-ratio: 2.4 / 1; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-brand { font-size: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* ---------- 分类页：页头 ---------- */
.page-hero {
  background: var(--bg);
  padding: 20px 0 8px;
}

.page-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 40px;
  align-items: end;
  margin-top: 18px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 44px;
  line-height: 1.2;
  letter-spacing: 1px;
}

.page-hero p {
  margin: 0;
  font-size: var(--fs-6);
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 640px;
}

.list-block { padding-top: 24px; padding-bottom: 40px; }

.list-head { margin-bottom: 12px; }

.post-grid { margin-top: 20px; }

.empty-note {
  margin: 24px 0 0;
  padding: 24px;
  text-align: center;
  color: var(--muted);
  background: var(--surface);
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-2);
}

.list-description {
  margin-top: 36px;
  padding: 26px 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
}

.list-description p {
  margin: 10px 0 0;
  font-size: var(--fs-6);
  line-height: 1.95;
  color: var(--ink-soft);
}

/* ---------- 详情页 ---------- */
.article-page { padding-top: 20px; padding-bottom: 48px; }

.article-head {
  margin: 20px 0 26px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
  max-width: 860px;
}

.article-head h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 40px;
  line-height: 1.3;
  letter-spacing: .5px;
}

.article-lead {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 720px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 14px;
  font-size: var(--fs-2);
  color: var(--muted);
}

.article-meta a { color: var(--accent); }
.article-meta a:hover { text-decoration: underline; text-underline-offset: 3px; }

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 48px;
  align-items: start;
}

.article-main { max-width: 760px; }

.article-aside { position: sticky; top: 20px; }

.toc-toggle {
  display: none;
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-1);
  background: var(--surface);
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;
  font-size: var(--fs-3);
  color: var(--ink);
  cursor: pointer;
}

.toc {
  border-left: 1px solid var(--line);
  padding: 4px 0 4px 16px;
}

.toc-title {
  margin: 0 0 8px;
  font-size: var(--fs-2);
  letter-spacing: 1px;
  color: var(--muted);
}

.toc ul { list-style: none; margin: 0; padding: 0; }

.toc a {
  display: block;
  padding: 5px 0;
  font-size: var(--fs-3);
  line-height: 1.55;
  color: var(--ink-soft);
  border-left: 2px solid transparent;
  margin-left: -18px;
  padding-left: 16px;
}

.toc a:hover { color: var(--accent); }
.toc a.is-active { color: var(--accent); border-color: var(--accent); font-weight: 600; }

.prev-next {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 36px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.prev-next-link {
  display: block;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
}

.prev-next-link:hover { border-color: var(--accent); }

.prev-next-label {
  display: block;
  font-size: var(--fs-1);
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 4px;
}

.prev-next-title {
  display: block;
  font-size: var(--fs-4);
  line-height: 1.55;
}

.prev-next-link.next { text-align: right; }

.related { margin-top: 36px; }

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.related-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  overflow: hidden;
  padding-bottom: 12px;
}

.related-card:hover { border-color: var(--accent); }

.related-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  margin-bottom: 10px;
}

.related-card h3 {
  margin: 0 10px 6px;
  font-size: var(--fs-4);
  line-height: 1.5;
  font-family: var(--font-serif);
}

.related-card span { margin: 0 10px; font-size: var(--fs-1); color: var(--muted); }

/* ---------- 内页响应式 ---------- */
@media (max-width: 1080px) {
  .article-layout { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .article-aside { position: static; }
  .toc-toggle { display: inline-flex; align-items: center; justify-content: space-between; }
  .toc { display: none; border: 1px solid var(--line); border-radius: var(--r-1); margin-top: 8px; padding: 12px 16px; background: var(--surface); }
  .toc[data-open="true"] { display: block; }
  .toc a { margin-left: 0; padding-left: 0; border-left: 0; }
  .post-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-hero-inner { grid-template-columns: minmax(0, 1fr); gap: 14px; align-items: start; }
}

@media (max-width: 640px) {
  .page-hero h1 { font-size: 32px; }
  .article-head h1 { font-size: 27px; }
  .article { font-size: 16px; }
  .article h2 { font-size: 21px; margin-top: 30px; }
  .post-grid { grid-template-columns: minmax(0, 1fr); }
  .related-grid { grid-template-columns: minmax(0, 1fr); }
  .prev-next { grid-template-columns: minmax(0, 1fr); }
  .prev-next-link.next { text-align: left; }
  .toolbar { gap: 6px; }
  .toolbar-right { margin-left: 0; width: 100%; justify-content: space-between; }
  .list-description { padding: 20px 16px; }
}

/* ---------- 数据对接补充 ---------- */
.chip { display: inline-flex; align-items: center; justify-content: center; line-height: 1; text-decoration: none; }
.chip.is-active, .chip[aria-pressed="true"] { background: #234735; border-color: #234735; color: #fff; }
.pagination { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 36px 0 12px; }
.page-num { display: inline-flex; align-items: center; justify-content: center; min-width: 38px; height: 38px; padding: 0 12px; border: 1px solid rgba(35,71,53,.24); border-radius: 4px; color: #234735; font-size: 13px; text-decoration: none; }
.page-num:hover, .page-num:focus-visible { border-color: #234735; }
.page-num.is-active { background: #234735; border-color: #234735; color: #fff; }
.page-gap { display: inline-flex; align-items: center; padding: 0 4px; color: #6b756c; }
.empty-state { padding: 48px 0; text-align: center; color: #6b756c; }
.section-figure { margin: 18px 0; }
.section-figure img, .article img { max-width: 100%; height: auto; border-radius: 4px; }


/* ---------- 相关阅读列表项内边距 ---------- */
.related-card {
  padding: 16px 16px 16px;
}
.related-card strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-serif);
  font-size: var(--fs-4);
  line-height: 1.5;
}
.related-card span { display: block; margin: 0; }
.latest-side .latest-list { margin-top: 0; }

/* 最近更新：独立模块，占满内容宽度 */
.latest-module .latest-list { margin-top: 18px; }