/* ============================================================
   inner.css —— 内页版式系统
   沿用 base.css 的 Claude 暖色令牌；首页之外的 35 个页面共用
   ============================================================ */

/* ---------- 页头 ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  padding-top: var(--header-h); /* 导航为 fixed，给面包屑留出空间 */
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(700px 380px at 82% 8%, rgba(217, 119, 87, .10), transparent 65%),
    linear-gradient(180deg, var(--ivory) 0%, var(--parchment) 100%);
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--sand) 1px, transparent 1px), linear-gradient(90deg, var(--sand) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: .32;
  -webkit-mask-image: linear-gradient(90deg, transparent 12%, #000 100%);
  mask-image: linear-gradient(90deg, transparent 12%, #000 100%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  align-items: center;
  gap: 56px;
  padding: 34px 0 68px;
}
.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  color: var(--stone);
  margin-bottom: 24px;
}
.crumb a:hover { color: var(--clay); }
.crumb i { font-style: normal; color: var(--sand-deep); }
.crumb span { color: var(--muted); }
.page-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--clay-dark);
  background: var(--clay-wash);
  border: 1px solid var(--clay-soft);
  border-radius: 99px;
  padding: 5px 14px;
  margin-bottom: 20px;
}
.page-hero h1 {
  font-size: clamp(32px, 3.5vw, 50px);
  line-height: 1.24;
  letter-spacing: -.02em;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 18px;
}
.page-hero h1 em { font-style: normal; color: var(--clay-dark); }
.page-hero .lead {
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 640px;
  margin-bottom: 26px;
}
.page-hero .actions { display: flex; flex-wrap: wrap; gap: 12px; }
.page-hero .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--sand);
  font-size: 13px;
  color: var(--stone);
}
.page-hero .hero-meta b { color: var(--ink); font-weight: 600; }

/* 页头右侧抽象数据卡（与首页同一套视觉语言） */
.hero-art {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--oat);
  border: 1px solid var(--sand);
  padding: 18px;
  box-shadow: var(--shadow-soft);
}
.hero-art__top { display: flex; align-items: center; gap: 6px; padding: 2px 2px 14px; }
.hero-art__top i { width: 8px; height: 8px; border-radius: 50%; background: var(--sand-deep); }
.hero-art__top i:first-child { background: var(--clay-soft); }
.hero-art__top span { margin-left: auto; font-size: 11px; color: var(--stone); }
.hero-art__card { background: var(--ivory); border: 1px solid var(--border); border-radius: 10px; padding: 16px; }
.hero-art__card h4 { font-size: 13px; color: var(--ink); margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.hero-art__card h4 svg { width: 16px; height: 16px; color: var(--clay); }
.hero-art__metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 14px; }
.hero-art__metric { background: var(--oat); border-radius: 7px; padding: 10px; }
.hero-art__metric small { display: block; font-size: 10px; color: var(--stone); }
.hero-art__metric b { font-size: 16px; color: var(--ink); }
.hero-art__bars { display: flex; align-items: flex-end; gap: 7px; height: 76px; padding: 10px 10px 0; border: 1px solid var(--border); border-radius: 7px; }
.hero-art__bars i { flex: 1; background: var(--clay-soft); border-radius: 3px 3px 0 0; }
.hero-art__bars i:nth-child(3n) { background: var(--clay); }
.hero-art__rows { margin-top: 12px; display: grid; gap: 8px; }
.hero-art__rows span { display: block; height: 7px; border-radius: 99px; background: var(--sand); }
.hero-art__rows span:nth-child(2) { width: 78%; }
.hero-art__rows span:nth-child(3) { width: 56%; }
.hero-art__float {
  position: absolute;
  right: -18px;
  bottom: -18px;
  background: var(--ink);
  color: var(--ivory);
  border-radius: 9px;
  padding: 10px 14px;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-soft);
}
.hero-art__float svg { width: 15px; height: 15px; color: var(--clay-soft); }

/* ---------- 主体骨架 ---------- */
.inner-shell {
  display: grid;
  grid-template-columns: 218px minmax(0, 1fr);
  gap: 52px;
  padding: 56px 0 88px;
  align-items: start;
}
.inner-aside { position: sticky; top: calc(var(--header-h) + 24px); }
.aside-box { border: 1px solid var(--border); border-radius: var(--radius); background: var(--ivory); padding: 20px 18px; margin-bottom: 16px; }
.aside-box h4 { font-size: 12px; letter-spacing: .1em; color: var(--stone); text-transform: uppercase; margin-bottom: 14px; }
.aside-toc { display: grid; gap: 2px; }
.aside-toc a {
  font-size: 13px;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 6px;
  border-left: 2px solid transparent;
  line-height: 1.5;
  transition: background .2s, color .2s;
}
.aside-toc a:hover { background: var(--oat); color: var(--ink); }
.aside-toc a.is-active { background: var(--clay-wash); color: var(--clay-dark); border-left-color: var(--clay); font-weight: 600; }
.aside-links { display: grid; gap: 8px; }
.aside-links a { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.aside-links a:hover { color: var(--clay-dark); }
.aside-links a::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--clay-soft); }
.aside-contact { background: var(--ink); border-color: var(--ink); color: var(--silver); }
.aside-contact h4 { color: var(--silver); }
.aside-contact strong { display: block; color: var(--ivory); font-size: 20px; letter-spacing: .01em; margin-bottom: 6px; }
.aside-contact p { font-size: 12px; line-height: 1.7; margin-bottom: 14px; }
.aside-contact .btn { width: 100%; justify-content: center; }

.inner-content { min-width: 0; }
.inner-content > .sec:first-child { margin-top: 0; }

/* ---------- 区块 ---------- */
.sec { margin: 0 0 60px; scroll-margin-top: calc(var(--header-h) + 20px); }
.sec--box {
  background: var(--parchment);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 38px 36px;
  margin-left: -2px;
  margin-right: -2px;
}
.sec-head { margin-bottom: 26px; }
.sec-head .kicker {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--clay-dark);
  margin-bottom: 10px;
}
.sec-head h2 {
  font-size: clamp(23px, 2.2vw, 30px);
  line-height: 1.38;
  letter-spacing: -.01em;
  color: var(--ink);
  font-weight: 700;
  padding-left: 16px;
  border-left: 3px solid var(--clay);
}
.sec-head p { margin-top: 12px; padding-left: 19px; color: var(--muted); font-size: 15px; line-height: 1.85; max-width: 780px; }
.sec-head h3 { font-size: 18px; color: var(--ink); margin-bottom: 8px; }
.sec-intro {
  font-size: 15px;
  line-height: 1.95;
  color: var(--muted);
  max-width: 820px;
  margin: -6px 0 22px;
  padding-left: 18px;
  border-left: 2px solid var(--clay-soft);
}

/* ---------- 卡片 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.card-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.icard {
  background: var(--ivory);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  transition: box-shadow .22s, transform .22s, border-color .22s;
}
.icard:hover { box-shadow: var(--ring-hover); transform: translateY(-3px); border-color: var(--sand-deep); }
.icard__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: var(--clay-wash);
  color: var(--clay-dark);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 14px;
}
.icard h3 { font-size: 16px; color: var(--ink); line-height: 1.5; margin-bottom: 8px; }
.icard p { font-size: 13.5px; color: var(--muted); line-height: 1.8; }
.icard .icard__tag { display: inline-block; margin-top: 12px; font-size: 11px; color: var(--clay-dark); background: var(--clay-wash); border-radius: 99px; padding: 3px 10px; }

/* 纯短句列表 */
.chip-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.chip {
  border: 1px solid var(--border);
  background: var(--ivory);
  border-radius: 7px;
  padding: 13px 14px;
  font-size: 13.5px;
  color: var(--body);
  text-align: center;
  transition: border-color .2s, background .2s;
}
.chip:hover { border-color: var(--clay-soft); background: var(--clay-wash); }

/* 要点列表 */
.point-list { display: grid; gap: 12px; }
.point-list__item {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  background: var(--ivory);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.point-list__item > svg { width: 18px; height: 18px; flex: none; color: var(--clay); margin-top: 4px; }
.point-list__item strong { display: block; font-size: 15px; color: var(--ink); margin-bottom: 3px; }
.point-list__item span { font-size: 13.5px; color: var(--muted); line-height: 1.8; }

/* 段落 */
.prose { max-width: 820px; }
.prose p { font-size: 15px; line-height: 2; color: var(--body); margin-bottom: 16px; }
.prose p.prose--lead { font-size: 16.5px; color: var(--ink); }
.prose h3 { font-size: 19px; color: var(--ink); margin: 32px 0 14px; padding-left: 14px; border-left: 3px solid var(--clay-soft); }
.prose h4 { font-size: 16px; color: var(--ink); margin: 24px 0 10px; }
.prose .prose-note { background: var(--oat); border-left: 3px solid var(--clay); border-radius: 0 7px 7px 0; padding: 16px 20px; color: var(--muted); font-size: 14px; }

/* 分栏 */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.split__panel { border: 1px solid var(--border); border-radius: var(--radius); background: var(--ivory); padding: 24px; }
.split__panel h3 { font-size: 17px; color: var(--ink); margin-bottom: 14px; display: flex; align-items: center; gap: 9px; }
.split__panel h3 svg { width: 18px; height: 18px; color: var(--clay); }
.split__panel ul { display: grid; gap: 9px; }
.split__panel li { font-size: 13.5px; color: var(--muted); line-height: 1.8; padding-left: 16px; position: relative; }
.split__panel li::before { content: ""; position: absolute; left: 0; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: var(--clay-soft); }

/* 时间轴 */
.timeline { border-left: 2px solid var(--sand); padding-left: 22px; display: grid; gap: 18px; }
.timeline__item { position: relative; }
.timeline__item::before { content: ""; position: absolute; left: -29px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--ivory); border: 2px solid var(--clay); }
.timeline__item b { color: var(--clay-dark); font-size: 14px; margin-right: 10px; }
.timeline__item span { font-size: 14px; color: var(--body); }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--border); padding: 18px 0; }
.faq-item:first-of-type { border-top: 1px solid var(--border); }
.faq-item h3 { font-size: 15.5px; color: var(--ink); margin-bottom: 8px; }
.faq-item p { font-size: 14px; color: var(--muted); line-height: 1.9; }

/* 价格表 */
.price-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.price-card { border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--ivory); padding: 26px 22px; display: flex; flex-direction: column; }
.price-card--featured { border-color: var(--clay); box-shadow: 0 0 0 1px var(--clay-soft); }
.price-card h3 { font-size: 20px; color: var(--ink); margin-bottom: 6px; }
.price-card .pc-sub { font-size: 13px; color: var(--muted); line-height: 1.8; min-height: 70px; }
.price-card ul { display: grid; gap: 9px; margin: 18px 0 22px; flex: 1; }
.price-card li { font-size: 13px; color: var(--body); padding-left: 17px; position: relative; line-height: 1.7; }
.price-card li::before { content: ""; position: absolute; left: 0; top: 9px; width: 5px; height: 5px; border-radius: 50%; background: var(--clay-soft); }
.price-card .btn { justify-content: center; width: 100%; }

.ftable { width: 100%; font-size: 13.5px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.ftable th, .ftable td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.ftable thead th { background: var(--oat); color: var(--ink); font-weight: 600; }
.ftable tbody tr:nth-child(even) { background: var(--parchment); }
.ftable td { color: var(--muted); }
.ftable td:first-child { color: var(--ink); font-weight: 500; }

/* 新闻列表 */
.news-list { display: grid; gap: 0; border-top: 1px solid var(--border); }
.news-list__item {
  display: grid;
  grid-template-columns: 108px 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 20px 6px;
  border-bottom: 1px solid var(--border);
  transition: background .2s;
}
.news-list__item:hover { background: var(--parchment); }
.news-list__item time { font-size: 13px; color: var(--stone); font-variant-numeric: tabular-nums; }
.news-list__item h3 { font-size: 16px; color: var(--ink); line-height: 1.6; font-weight: 500; }
.news-list__item:hover h3 { color: var(--clay-dark); }
.news-list__item svg { width: 18px; height: 18px; color: var(--clay); }
.news-list__item .nl-cat { display: inline-block; font-size: 11px; color: var(--clay-dark); background: var(--clay-wash); border-radius: 99px; padding: 2px 10px; margin-bottom: 6px; }
.news-list__item .nl-sum { font-size: 13px; color: var(--muted); line-height: 1.7; margin-top: 7px; }
.news-list__item:hover .nl-sum { color: var(--ink); }
.pager { display: flex; justify-content: center; gap: 8px; margin-top: 26px; }
.pager span, .pager a { min-width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; color: var(--muted); }
.pager .is-current { background: var(--clay); color: #fff; border-color: var(--clay); }
.pager a:hover { border-color: var(--clay); color: var(--clay-dark); }

/* 相关文章 / 上下篇 */
.page-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 40px; }
.page-nav a { border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; background: var(--ivory); }
.page-nav a:hover { border-color: var(--clay-soft); }
.page-nav small { display: block; font-size: 12px; color: var(--stone); margin-bottom: 6px; }
.page-nav strong { font-size: 14px; color: var(--ink); font-weight: 500; line-height: 1.6; }

/* 相关页面 */
.related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.related-grid a { border: 1px solid var(--border); border-radius: var(--radius); background: var(--ivory); padding: 16px 18px; font-size: 14px; color: var(--ink); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.related-grid a:hover { border-color: var(--clay-soft); color: var(--clay-dark); }
.related-grid svg { width: 15px; height: 15px; color: var(--clay); flex: none; }

/* 内页底部 CTA */
.inner-cta {
  background: var(--ink);
  color: var(--silver);
  padding: 58px 0;
  position: relative;
  overflow: hidden;
}
.inner-cta::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -120px;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(239, 194, 176, .16);
  border-radius: 50%;
  box-shadow: 0 0 0 60px rgba(239, 194, 176, .04), 0 0 0 120px rgba(239, 194, 176, .03);
  pointer-events: none;
}
.inner-cta .container { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.inner-cta h2 { font-size: clamp(24px, 2.4vw, 32px); color: var(--ivory); line-height: 1.45; margin-bottom: 10px; }
.inner-cta p { font-size: 14px; color: var(--silver); }
.inner-cta .cta-actions { display: flex; gap: 12px; flex: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .page-hero-inner { grid-template-columns: minmax(0, 1fr) 300px; gap: 32px; }
  .inner-shell { gap: 32px; grid-template-columns: 190px minmax(0, 1fr); }
  .card-grid, .price-grid, .related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chip-grid, .card-grid--4 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .page-hero-inner { grid-template-columns: 1fr; padding: 44px 0 52px; }
  .hero-art { display: none; }
  .inner-shell { grid-template-columns: 1fr; padding: 40px 0 64px; }
  .inner-aside { display: none; }
  .sec--box { padding: 28px 22px; }
}
@media (max-width: 640px) {
  .page-hero h1 { font-size: 30px; }
  .page-hero .lead { font-size: 14.5px; }
  .card-grid, .card-grid--2, .card-grid--4, .chip-grid, .price-grid, .split, .related-grid, .page-nav { grid-template-columns: 1fr; }
  .sec { margin-bottom: 42px; }
  .sec-head h2 { font-size: 22px; }
  .news-list__item { grid-template-columns: 1fr auto; gap: 8px; }
  .news-list__item time { grid-column: 1 / -1; }
  .inner-cta .container { flex-direction: column; align-items: flex-start; }
  .ftable { display: block; overflow-x: auto; white-space: nowrap; }
}