/* ========================================================
   案例详情页共享样式 — 与首页编辑式排版保持同源
   ======================================================== */

:root {
  --ink:        #0B1E3F;
  --ink-2:      #1B2D4D;
  --ink-soft:   #4A5A75;
  --ink-mute:   #8A95A8;
  --paper:      #FFFFFF;
  --paper-2:    #F7F7F5;
  --paper-3:    #EFEFEC;
  --line:       #E4E4E0;
  --line-soft:  #EDEDEA;
  --accent:     #FF5722;
  --accent-2:   #E04A18;
  --gold:       #B8956A;
  --green:      #2F7D4F;

  --serif:  "Fraunces", "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
  --sans:   "Manrope", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --mono:   "JetBrains Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
}
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 1000;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' seed='7'/><feColorMatrix values='0 0 0 0 0.04  0 0 0 0 0.12  0 0 0 0 0.25  0 0 0 0.55 0'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.55'/></svg>");
  opacity: 0.06;
  mix-blend-mode: multiply;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
::selection { background: var(--ink); color: var(--paper); }

h1, h2, h3, h4 {
  word-break: keep-all;
  overflow-wrap: break-word;
  line-break: strict;
}

.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.nav {
  height: 64px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
}
.logo { display: flex; align-items: center; gap: 14px; }
.logo-img { height: 32px; width: auto; object-fit: contain; }
.logo-text {
  display: flex; align-items: center; line-height: 1.1;
  padding-left: 14px; border-left: 1px solid var(--line);
}
.logo-tag {
  font-family: var(--mono); font-size: 10px;
  color: var(--ink-mute); letter-spacing: 0.14em; text-transform: uppercase;
}
.nav-menu { display: flex; gap: 36px; justify-content: center; }
.nav-menu a {
  font-size: 14px; color: var(--ink-soft); font-weight: 500;
  position: relative; padding: 6px 0; transition: color .25s;
}
.nav-menu a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -2px;
  height: 1px; background: var(--ink);
  transition: right .35s cubic-bezier(.7,.1,.2,1);
}
.nav-menu a:hover { color: var(--ink); }
.nav-menu a:hover::after { right: 0; }

.btn {
  font-family: var(--sans); font-size: 13px; font-weight: 500;
  letter-spacing: 0.04em; padding: 10px 20px;
  transition: all .3s cubic-bezier(.7,.1,.2,1);
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid transparent; cursor: pointer;
  position: relative; overflow: hidden;
}
.btn-primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); }
.btn .arrow { display: inline-block; transition: transform .3s; }
.btn:hover .arrow { transform: translateX(4px); }

/* ===== Crumb ===== */
.crumb {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-mute); padding: 28px 0 0;
}
.crumb a { color: var(--ink-soft); transition: color .25s; }
.crumb a:hover { color: var(--ink); border-bottom: 1px solid var(--ink); }
.crumb .sep { margin: 0 12px; color: var(--line); }

/* ===== Hero ===== */
.case-hero { padding: 36px 0 64px; position: relative; }
.case-hero .meta-row {
  display: flex; gap: 14px; align-items: center;
  margin-bottom: 26px; flex-wrap: wrap;
}
.case-hero .pill {
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  padding: 6px 12px; border: 1px solid var(--ink); color: var(--ink);
}
.case-hero .pill.accent { background: var(--ink); color: var(--paper); }
.case-hero .industry-tag {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-soft);
}
.case-hero h1 {
  font-family: var(--serif); font-weight: 500;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(40px, 6.2vw, 78px);
  line-height: 1.04; letter-spacing: -0.02em;
  color: var(--ink); max-width: 920px; margin-bottom: 28px;
}
.case-hero h1 .it { font-style: italic; font-variation-settings: "opsz" 144, "SOFT" 80; }
.case-hero h1 .accent { color: var(--accent); }
.case-hero .lead {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  font-size: clamp(18px, 1.6vw, 22px); line-height: 1.6;
  color: var(--ink-soft); max-width: 760px; margin-bottom: 40px;
}
.case-hero .lead em { color: var(--ink); font-style: italic; }

.case-hero-img {
  width: 100%; aspect-ratio: 16/9;
  background-size: cover; background-position: center;
  background-color: var(--paper-3);
  border: 1px solid var(--line);
  filter: contrast(1.04);
}

/* ===== Quick stats strip ===== */
.case-stats-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink);
  margin: 56px 0 0;
}
.case-stats-strip > div {
  padding: 28px 24px; border-right: 1px solid var(--line);
}
.case-stats-strip > div:last-child { border-right: 0; }
.case-stats-strip .num {
  font-family: var(--serif); font-weight: 500;
  font-variation-settings: "opsz" 144; letter-spacing: -0.03em;
  font-size: 44px; line-height: 1; color: var(--ink); margin-bottom: 8px;
}
.case-stats-strip .num .unit {
  font-size: 18px; color: var(--ink-soft); margin-left: 4px; letter-spacing: 0;
}
.case-stats-strip .lbl {
  font-family: var(--mono); font-size: 11px;
  color: var(--ink-soft); letter-spacing: 0.14em; text-transform: uppercase;
}

/* ===== Sections ===== */
.section { padding: 96px 0; position: relative; }
.section.alt { background: var(--paper-2); }
.section.dark { background: var(--ink); color: var(--paper); }
.section.dark .num-tag { color: rgba(255,255,255,0.65); }
.section.dark .sec-title { color: var(--paper); }
.section.dark .sec-lead { color: rgba(255,255,255,0.75); }

.num-tag {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-soft); margin-bottom: 18px;
  display: inline-flex; align-items: center; gap: 10px;
}
.num-tag::before {
  content: ""; width: 22px; height: 1px; background: currentColor;
}
.sec-head {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 64px;
  align-items: end; margin-bottom: 56px;
}
.sec-title {
  font-family: var(--serif); font-weight: 500;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.06; letter-spacing: -0.02em; color: var(--ink);
}
.sec-title .it { font-style: italic; font-variation-settings: "opsz" 144, "SOFT" 80; }
.sec-lead {
  font-family: var(--serif); font-style: italic;
  font-size: 18px; color: var(--ink-soft); line-height: 1.6;
}

/* 章节插图 ／ section illustration */
.section-illus {
  width: 100%; aspect-ratio: 16/9;
  background-size: cover; background-position: center;
  background-color: var(--paper-3);
  border: 1px solid var(--line);
  margin: 0 0 56px;
  filter: contrast(1.02);
}
.section-illus.compact { aspect-ratio: 21/9; }

/* prose ／ 文章排版 */
.prose { max-width: 880px; }
.prose p {
  font-size: 16.5px; line-height: 1.85;
  color: var(--ink-2); margin-bottom: 22px;
}
.prose p strong { color: var(--ink); font-weight: 600; }
.prose .pull {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  font-size: 22px; line-height: 1.55; color: var(--ink);
  border-left: 2px solid var(--accent); padding: 6px 0 6px 24px;
  margin: 32px 0;
}

/* 痛点 / pain points 列表 */
.pain-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); margin-top: 8px;
}
.pain-item {
  background: var(--paper); padding: 26px 28px;
  display: grid; grid-template-columns: 60px 1fr; gap: 18px;
  align-items: start; transition: background .3s;
}
.pain-item:hover { background: var(--paper-2); }
.pain-item .pidx {
  font-family: var(--serif); font-variation-settings: "opsz" 144;
  font-style: italic; font-size: 26px; color: var(--accent);
  line-height: 1;
}
.pain-item h4 {
  font-family: var(--sans); font-size: 15px; font-weight: 600;
  color: var(--ink); margin-bottom: 6px; letter-spacing: 0.01em;
}
.pain-item p { font-size: 14px; line-height: 1.7; color: var(--ink-soft); }

/* 方案模块 */
.module-list { display: grid; grid-template-columns: 1fr; gap: 0; }
.module-item {
  display: grid; grid-template-columns: 240px 1fr; gap: 56px;
  padding: 36px 0; border-top: 1px solid var(--line);
  align-items: start;
}
.module-item:last-child { border-bottom: 1px solid var(--line); }
.module-item .mnum {
  font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.18em; color: var(--ink-mute);
  margin-bottom: 10px;
}
.module-item h3 {
  font-family: var(--serif); font-weight: 500;
  font-variation-settings: "opsz" 96, "SOFT" 30;
  font-size: 24px; line-height: 1.25; color: var(--ink);
  letter-spacing: -0.01em;
}
.module-item .mdesc {
  font-size: 15.5px; line-height: 1.85; color: var(--ink-2);
}
.module-item .mdesc strong { color: var(--ink); }

/* 落地成效 — 数字 + 条目 */
.outcome-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
}
.outcome-card {
  background: var(--paper); padding: 36px 32px;
  display: flex; flex-direction: column; gap: 14px;
}
.outcome-card .otag {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent);
}
.outcome-card h4 {
  font-family: var(--serif); font-weight: 500;
  font-variation-settings: "opsz" 96, "SOFT" 30;
  font-size: 22px; line-height: 1.3; color: var(--ink);
}
.outcome-card p {
  font-size: 14.5px; line-height: 1.8; color: var(--ink-soft);
}

/* CTA */
.case-cta {
  background: var(--ink); color: var(--paper);
  padding: 88px 0; position: relative; overflow: hidden;
}
.case-cta::before {
  content: ""; position: absolute; top: -160px; right: -160px;
  width: 460px; height: 460px;
  background: radial-gradient(circle at 50% 50%, rgba(255,87,34,0.18), transparent 65%);
  border-radius: 50%; pointer-events: none;
}
.case-cta .container { position: relative; z-index: 2; }
.case-cta h2 {
  font-family: var(--serif); font-weight: 500;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(32px, 4vw, 52px); line-height: 1.08;
  letter-spacing: -0.02em; margin-bottom: 24px; max-width: 800px;
}
.case-cta h2 .it { font-style: italic; font-variation-settings: "opsz" 144, "SOFT" 80; }
.case-cta p {
  font-family: var(--serif); font-style: italic; font-size: 19px;
  color: rgba(255,255,255,0.75); max-width: 640px; margin-bottom: 36px;
}
.case-cta .btn-primary { background: var(--accent); border-color: var(--accent); }
.case-cta .btn-primary:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.case-cta .btn-outline { color: var(--paper); border-color: rgba(255,255,255,0.4); }
.case-cta .btn-outline:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }

/* 相关案例 / next-prev */
.related {
  border-top: 1px solid var(--line);
  padding: 80px 0;
}
.related-title {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-soft); margin-bottom: 32px;
}
.related-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line);
}
.related-card {
  background: var(--paper); padding: 36px 32px;
  display: grid; grid-template-columns: 1fr auto;
  gap: 24px; align-items: center; transition: background .25s;
}
.related-card:hover { background: var(--paper-2); }
.related-card .rdir {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-mute); margin-bottom: 8px;
}
.related-card h3 {
  font-family: var(--serif); font-weight: 500;
  font-variation-settings: "opsz" 96, "SOFT" 30;
  font-size: 22px; line-height: 1.25; color: var(--ink);
}
.related-card .arrow {
  font-family: var(--serif); font-size: 32px;
  color: var(--ink-mute); transition: all .3s;
}
.related-card:hover .arrow { color: var(--accent); transform: translateX(6px); }

/* ===== Footer ===== */
footer {
  background: var(--ink); color: var(--paper);
  padding: 72px 0 28px; font-size: 14px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: 48px; padding-bottom: 56px;
}
.footer-brand img { height: 36px; filter: invert(1) brightness(2); margin-bottom: 18px; }
.footer-desc { color: rgba(255,255,255,0.65); font-size: 13.5px; line-height: 1.75; max-width: 280px; }
.footer-col h4 {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: rgba(255,255,255,0.5); margin-bottom: 18px;
}
.footer-col ul { list-style: none; }
.footer-col li { padding: 4px 0; }
.footer-col a { color: rgba(255,255,255,0.8); transition: color .25s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.5); font-size: 13px;
}
.footer-bottom-right { display: flex; gap: 28px; }
.footer-bottom a:hover { color: var(--paper); }

/* ===== 列表页 · CASE INDEX ===== */
.list-hero {
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--line);
  position: relative; overflow: hidden;
}
.list-hero::before {
  content: ""; position: absolute;
  top: 40px; right: -160px;
  width: 380px; height: 380px;
  background: radial-gradient(circle at 50% 50%, rgba(255,87,34,0.08), transparent 65%);
  border-radius: 50%; pointer-events: none;
}
.list-hero .container { position: relative; z-index: 2; }
.list-hero .meta-row {
  display: flex; gap: 14px; align-items: center;
  margin-bottom: 22px; flex-wrap: wrap;
}
.list-hero .vol {
  font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent);
  display: inline-flex; align-items: center; gap: 12px;
}
.list-hero .vol::before {
  content: ""; width: 28px; height: 1px; background: currentColor;
}
.list-hero h1 {
  font-family: var(--serif); font-weight: 500;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(46px, 7vw, 88px);
  line-height: 1.02; letter-spacing: -0.025em;
  color: var(--ink); margin-bottom: 24px; max-width: 940px;
}
.list-hero h1 .it { font-style: italic; font-variation-settings: "opsz" 144, "SOFT" 80; }
.list-hero h1 .accent { color: var(--accent); }
.list-hero .lead {
  font-family: var(--serif); font-style: italic;
  font-size: clamp(18px, 1.6vw, 22px); line-height: 1.6;
  color: var(--ink-soft); max-width: 760px;
}

/* 筛选 chips */
.filter-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 32px 0; flex-wrap: wrap;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  margin-bottom: 0;
}
.filter-bar .label {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-mute); margin-right: 18px;
}
.filter-chip {
  font-family: var(--sans); font-size: 13px; font-weight: 500;
  color: var(--ink-soft); padding: 8px 16px;
  border: 1px solid var(--line); background: var(--paper);
  cursor: pointer; transition: all .25s cubic-bezier(.7,.1,.2,1);
  display: inline-flex; align-items: center; gap: 8px;
}
.filter-chip .count {
  font-family: var(--mono); font-size: 10px;
  color: var(--ink-mute); padding: 2px 6px;
  background: var(--paper-2); border-radius: 999px;
}
.filter-chip:hover { border-color: var(--ink); color: var(--ink); }
.filter-chip.active {
  background: var(--ink); color: var(--paper); border-color: var(--ink);
}
.filter-chip.active .count { background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.85); }

/* 列表网格 */
.list-section { padding: 64px 0 96px; background: var(--paper); }
.list-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.list-card {
  background: var(--paper); display: block;
  transition: background .25s, transform .35s, box-shadow .25s, border-color .25s;
  position: relative;
  border: 1px solid var(--line);
}
.list-card:hover { box-shadow: 0 8px 28px rgba(11,30,63,.08); border-color: var(--ink-soft); }
.list-card:hover { background: var(--paper-2); }
.list-card.hidden { display: none !important; }
.list-card-img {
  aspect-ratio: 16/9;
  background-size: cover; background-position: center;
  filter: grayscale(0.5) contrast(1.04);
  transition: filter .5s, transform .6s;
  border-bottom: 1px solid var(--line);
}
.list-card:hover .list-card-img { filter: grayscale(0) contrast(1.05); transform: scale(1.02); }
.list-card-body { padding: 32px 32px 36px; }
.list-card-meta {
  display: flex; gap: 14px; align-items: center;
  margin-bottom: 16px; flex-wrap: wrap;
}
.list-card-tag {
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  padding: 4px 10px; border: 1px solid var(--ink); color: var(--ink);
}
.list-card-tag.accent { background: var(--ink); color: var(--paper); }
.list-card-industry {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent);
}
.list-card h3 {
  font-family: var(--serif); font-weight: 500;
  font-variation-settings: "opsz" 96, "SOFT" 30;
  font-size: 28px; line-height: 1.22; letter-spacing: -0.015em;
  color: var(--ink); margin-bottom: 14px; transition: color .25s;
}
.list-card:hover h3 { color: var(--accent); }
.list-card p {
  font-size: 15px; line-height: 1.75; color: var(--ink-soft);
  margin-bottom: 22px;
}
.list-card-stats {
  display: flex; gap: 28px;
  padding-top: 20px; border-top: 1px solid var(--line);
  margin-bottom: 22px;
}
.list-card-stat .num {
  font-family: var(--serif); font-weight: 500;
  font-variation-settings: "opsz" 96; letter-spacing: -0.03em;
  font-size: 30px; line-height: 1; color: var(--ink); margin-bottom: 4px;
}
.list-card-stat .num .unit { font-size: 14px; color: var(--ink-soft); margin-left: 3px; letter-spacing: 0; }
.list-card-stat .lbl {
  font-family: var(--mono); font-size: 10px;
  color: var(--ink-mute); letter-spacing: 0.14em; text-transform: uppercase;
}
.list-card-cta {
  font-family: var(--mono); font-size: 11.5px; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink); display: inline-flex; align-items: center; gap: 8px;
}
.list-card:hover .list-card-cta { color: var(--accent); }
.list-card-cta .arr { transition: transform .3s; }
.list-card:hover .list-card-cta .arr { transform: translateX(6px); }

/* 空态 */
.list-empty {
  padding: 80px 0; text-align: center;
  color: var(--ink-mute); font-family: var(--serif); font-style: italic;
  font-size: 18px; grid-column: 1 / -1; background: var(--paper);
}

@media (max-width: 900px) {
  .list-grid { grid-template-columns: 1fr; gap: 20px; }
}

/* ===== Reveal ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: all .9s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 1080px) {
  .sec-head { grid-template-columns: 1fr; gap: 24px; }
  .module-item { grid-template-columns: 1fr; gap: 16px; }
  .case-stats-strip { grid-template-columns: repeat(2, 1fr); }
  .case-stats-strip > div:nth-child(2) { border-right: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-menu { display: none; }
}
@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .section { padding: 64px 0; }
  .pain-grid { grid-template-columns: 1fr; }
  .outcome-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .case-stats-strip { grid-template-columns: 1fr; }
  .case-stats-strip > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .case-stats-strip > div:last-child { border-bottom: 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .case-hero h1 { font-size: 38px; }
  .case-hero { padding: 24px 0 48px; }
  .case-hero .lead { font-size: 16px; margin-bottom: 28px; }
  .case-hero .meta-row { gap: 8px; margin-bottom: 20px; }
  .nav { gap: 16px; height: 56px; }
  .logo-text { display: none; }
  .logo-img { height: 28px; }
  .nav .btn { padding: 8px 14px; font-size: 12px; letter-spacing: 0.02em; }
  .crumb { padding: 18px 0 0; font-size: 10px; letter-spacing: 0.14em; }
  .crumb .sep { margin: 0 6px; }
  .related-card { grid-template-columns: 1fr; gap: 12px; padding: 24px 22px; }
  .related-card .arrow { font-size: 24px; }
  .case-cta { padding: 56px 0; }
  .case-cta h2 { font-size: 30px; }
  .case-cta p { font-size: 16px; margin-bottom: 24px; }
  .module-item { padding: 24px 0; }
  .module-item h3 { font-size: 21px; }
  .module-item .mdesc { font-size: 14.5px; line-height: 1.75; }
  .prose p { font-size: 15px; line-height: 1.75; margin-bottom: 18px; }
  .prose .pull { font-size: 18px; padding-left: 18px; margin: 24px 0; }
  .pain-item { grid-template-columns: 44px 1fr; gap: 12px; padding: 20px 22px; }
  .pain-item .pidx { font-size: 22px; }
  .outcome-card { padding: 28px 24px; }
  .outcome-card h4 { font-size: 19px; }
  .section-illus, .section-illus.compact { margin-bottom: 36px; }
  .list-hero { padding: 40px 0 36px; }
  .list-hero h1 { font-size: 42px; }
  .filter-bar { padding: 20px 0; gap: 8px; }
  .filter-bar .label { margin-right: 8px; width: 100%; margin-bottom: 4px; }
  .filter-chip { font-size: 12px; padding: 6px 12px; }
  .list-section { padding: 40px 0 64px; }
  .list-grid { gap: 16px; }
  .list-card-body { padding: 24px 22px 28px; }
  .list-card h3 { font-size: 22px; }
  .list-card-stats { gap: 18px; padding-top: 16px; margin-bottom: 18px; }
  .list-card-stat .num { font-size: 24px; }
  footer { padding: 56px 0 24px; }
  .footer-grid { padding-bottom: 40px; }
  .footer-bottom { flex-direction: column; gap: 14px; align-items: flex-start; }
}
@media (max-width: 420px) {
  .container { padding: 0 16px; }
  .case-hero h1 { font-size: 32px; }
  .case-cta h2 { font-size: 26px; }
  .nav .btn { padding: 7px 12px; font-size: 11.5px; }
  .list-hero h1 { font-size: 34px; }
}