:root {
  --case-shell-width: calc(100vw - 32px);
  --case-reading-width: 1040px;
  --case-wide-width: 1320px;

  --case-bg: #f4f7fb;
  --case-bg-soft: #f8faff;
  --case-bg-blue: #eef4ff;
  --case-surface: #ffffff;

  --case-text: var(--color-text-primary, #182033);
  --case-text-secondary: var(--color-text-secondary, #5f6b7c);
  --case-text-tertiary: var(--color-text-tertiary, #8691a3);
  --case-primary: var(--color-primary, #2454ff);

  --case-border: rgba(31, 51, 87, 0.10);
  --case-border-primary: rgba(36, 84, 255, 0.20);

  --case-radius-sm: 12px;
  --case-radius-md: 16px;
  --case-radius-lg: 20px;

  --case-shadow-sm: 0 8px 26px rgba(24, 50, 96, 0.045);
  --case-shadow-md: 0 16px 42px rgba(24, 50, 96, 0.085);
}

#caseHeader.SiteHeader {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border-default, rgba(31, 51, 87, 0.08));
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
}

.case-outer {
  width: var(--case-shell-width);
  max-width: var(--case-wide-width);
  margin-inline: auto;
}

.case-inner {
  width: 100%;
  max-width: var(--case-reading-width);
  margin-inline: auto;
}

.case-section {
  width: 100%;
  padding-block: 72px;
}

.case-section--alt {
  background: var(--case-bg);
}

.case-section h2 {
  margin: 0 0 18px;
  color: var(--case-text);
  font-size: clamp(30px, 2.1vw, 38px);
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.case-section h3 {
  margin: 0 0 12px;
  color: var(--case-text);
  font-size: clamp(20px, 1.25vw, 24px);
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.4;
}

.case-section h4 {
  margin: 0 0 10px;
  color: var(--case-text);
  font-size: 19px;
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.45;
}

.case-section p,
.case-rich {
  color: var(--case-text-secondary);
  font-size: 17px;
  line-height: 1.82;
}

.case-section .lead {
  max-width: 880px;
  margin: 0 0 28px;
  color: var(--case-text-secondary);
  font-size: 17px;
  line-height: 1.8;
}

.case-hero {
  position: relative;
  min-height: 430px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  padding-top: 148px; 
  background: #0a3478;
}

.case-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(circle at 82% 12%, rgba(0, 212, 255, 0.24), transparent 28%),
    radial-gradient(circle at 12% 10%, rgba(104, 88, 255, 0.22), transparent 30%),
    linear-gradient(135deg, #1836ca 0%, #176cf2 44%, #0a8ac6 70%, #102d63 100%);
}

.case-hero__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background-image:
    linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
}

.case-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 54% 40% at 18% 28%, rgba(255,255,255,.11), transparent 66%),
    radial-gradient(ellipse 36% 34% at 84% 58%, rgba(255,255,255,.07), transparent 68%);
}

.case-hero__overlay {
  position: absolute;
  inset: auto 0 0;
  z-index: 1;
  height: 70%;
  pointer-events: none;
  background: linear-gradient(to top, rgba(7,25,62,.84), rgba(7,25,62,.18) 66%, transparent);
}

.case-hero__content {
  position: relative;
  z-index: 2;
  width: var(--case-shell-width);
  max-width: var(--case-wide-width);
  margin-inline: auto;
  padding: 0 0 60px;
  color: #fff;
}

.case-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 30px;
  padding: 5px 13px;
  margin-bottom: 18px;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  color: #fff;
  font-size: 14px;
  font-weight: var(--font-weight-medium, 500);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.case-hero__badge-dot {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #37e1ff;
}

.case-hero__title {
  max-width: 1100px;
  margin: 0 0 14px;
  color: #fff;
  font-size: clamp(38px, 3vw, 54px);
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.16;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.case-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  color: rgba(255,255,255,.86);
  font-size: 15px;
  line-height: 1.7;
}

.case-breadcrumb,
.breadcrumb,
.page-crumbs {
  width: 100%;
  max-width: none;
  margin-inline: auto;
}

.page-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  padding: 22px 0 18px;
  color: var(--case-text-tertiary);
  font-size: 14px;
  line-height: 1.6;
}

.page-crumbs a {
  color: var(--case-text-secondary);
  text-decoration: none;
}

.page-crumbs a:hover {
  color: var(--case-primary);
}

.page-crumbs__sep {
  color: rgba(95,107,124,.48);
}

.page-crumbs__current {
  min-width: 0;
  color: var(--case-text-tertiary);
}

.results-banner {
  position: relative;
  z-index: 3;
  width: var(--case-shell-width);
  max-width: var(--case-wide-width);
  margin: 0 auto;
  padding: 34px 40px;
  border: 1px solid rgba(36,84,255,.12);
  border-radius: var(--case-radius-lg);
  background:
    radial-gradient(circle at 92% 10%, rgba(36,84,255,.07), transparent 28%),
    #fff;
  box-shadow: var(--case-shadow-md);
}

.results-banner__headline {
  max-width: 980px;
  margin: 0 0 10px;
  color: var(--case-primary);
  font-size: clamp(30px, 2.1vw, 42px);
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.results-banner__sub {
  max-width: 980px;
  margin: 0;
  color: var(--case-text-secondary);
  font-size: 16px;
  line-height: 1.76;
}

.results-banner__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid var(--case-border);
}

.results-banner__stat-value {
  color: var(--case-text);
  font-size: 26px;
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.2;
}

.results-banner__stat-label {
  margin-top: 5px;
  color: var(--case-text-tertiary);
  font-size: 14px;
}

#resultStats:empty,
.results-banner__grid:empty {
  display: none !important;
}

.related-caps {
  width: 100%;
  padding: 68px 0 30px;
  background: var(--case-bg);
}

.related-caps .case-inner {
  max-width: var(--case-wide-width);
}

.related-caps__title {
  margin: 0 0 22px;
  color: var(--case-text);
  font-size: clamp(26px, 1.8vw, 32px);
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.3;
}

.related-caps__tags {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.related-caps__tag {
  display: grid;
  grid-template-columns: 10px 1fr;
  align-content: start;
  gap: 8px 10px;
  min-height: 108px;
  padding: 20px;
  border: 1px solid var(--case-border);
  border-radius: var(--case-radius-md);
  background: linear-gradient(145deg, #fff, #f8fbff);
  color: var(--case-text);
  font-size: 16px;
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.55;
  text-decoration: none;
  box-shadow: var(--case-shadow-sm);
  transition:
    transform .2s ease,
    box-shadow .2s ease,
    border-color .2s ease;
}

.related-caps__tag::after {
  content: none !important;
  display: none !important;
}

.related-caps__tag:hover {
  transform: translateY(-3px);
  border-color: var(--case-border-primary);
  box-shadow: var(--case-shadow-md);
  color: var(--case-text);
}

.related-caps__tag:focus-visible {
  outline: 2px solid var(--case-primary);
  outline-offset: 3px;
}

.related-caps__tag-dot {
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--case-primary);
  box-shadow: 0 0 0 5px rgba(36,84,255,.07);
}

#caseSections {
  width: 100%;
  background: var(--case-bg);
}

#caseSections > .case-section {
  background: #fff;
  border-top: 1px solid rgba(31,51,87,.035);
}

/* 区块背景节奏：按稳定语义标识 data-case-section 交替，不再用 :nth-of-type(even) 猜业务区块 */
#caseSections > .case-section[data-case-section="background"] {
  background: #fff;
}

#caseSections > .case-section[data-case-section="challenges"],
#caseSections > .case-section[data-case-section="approach"] {
  background: linear-gradient(180deg, #f3f7fd 0%, #eef4fb 100%);
}

#caseSections > .case-section[data-case-section="architecture"],
#caseSections > .case-section[data-case-section="results"] {
  background: #fff;
}

#caseSections > .case-section > .case-outer > .case-inner {
  width: 100%;
  max-width: var(--case-wide-width);
  margin-inline: auto;
}

#caseSections > .case-section > .case-outer > .case-inner > p:not(.lead) {
  max-width: var(--case-reading-width);
}

#caseSections > .case-section[data-case-section="background"] > .case-outer > .case-inner {
  padding: 38px 42px;
  border: 1px solid var(--case-border);
  border-radius: var(--case-radius-lg);
  background:
    radial-gradient(circle at 92% 10%, rgba(36,84,255,.055), transparent 28%),
    #fff;
  box-shadow: var(--case-shadow-sm);
}

#caseSections > .case-section[data-case-section="background"] > .case-outer > .case-inner::before {
  content: "";
  display: block;
  width: 54px;
  height: 3px;
  margin-bottom: 24px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--case-primary), #6c5cff);
}

/* 业务挑战卡片 */
.challenge-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 16px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.challenge-card {
  display: flex;
  gap: 16px;
  min-width: 0;
  min-height: 0;
  padding: 24px;
  border: 1px solid var(--case-border);
  border-radius: var(--case-radius-md);
  background: #fff;
  box-shadow: var(--case-shadow-sm);
}

.challenge-card__icon {
  flex: none;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: var(--color-primary-light, #eef3ff);
  color: var(--case-primary);
}

.challenge-card__title {
  margin: 0 0 8px;
  color: var(--case-text);
  font-size: 18px;
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.4;
}

.challenge-card__text {
  margin: 0;
  color: var(--case-text-secondary);
  font-size: 15px;
  line-height: 1.72;
}

.solution-card {
  padding: 26px;
  margin-bottom: 16px;
  border: 1px solid var(--case-border);
  border-radius: var(--case-radius-md);
  background: #fff;
  box-shadow: var(--case-shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.solution-card:hover {
  transform: translateY(-3px);
  border-color: var(--case-border-primary);
  box-shadow: var(--case-shadow-md);
}

.solution-card__icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 13px;
  background: var(--color-primary-light, #eef3ff);
  color: var(--case-primary);
}

/* 建设思路流程 */
#caseSections .build-flow {
  position: relative;
  display: grid;
  width: 100%;
  max-width: none;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  align-items: stretch;
}

#caseSections .build-flow::before {
  content: "";
  position: absolute;
  top: 29px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(
    90deg,
    rgba(36,84,255,.06),
    rgba(36,84,255,.42),
    rgba(36,84,255,.06)
  );
}

#caseSections .build-step {
  position: relative;
  z-index: 1;
  min-width: 0;
  min-height: 224px;
  padding: 28px 24px 24px;
  border: 1px solid var(--case-border);
  border-radius: var(--case-radius-md);
  background: #fff;
  box-shadow: var(--case-shadow-sm);
  writing-mode: horizontal-tb;
  word-break: normal;
  overflow-wrap: break-word;
}

#caseSections .build-step::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 24px;
  width: 12px;
  height: 12px;
  border: 3px solid var(--case-bg-blue);
  border-radius: 50%;
  background: var(--case-primary);
}

#caseSections .build-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 28px;
  padding-inline: 10px;
  margin-bottom: 14px;
  border-radius: 999px;
  background: rgba(36,84,255,.08);
  color: var(--case-primary);
  font-size: 13px;
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1;
  letter-spacing: .06em;
}

#caseSections .build-step__icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  border-radius: 13px;
  background: var(--color-primary-light, #eef3ff);
  color: var(--case-primary);
}

#caseSections .build-step__title {
  margin: 0 0 10px;
  color: var(--case-text);
  font-size: 20px;
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.35;
  writing-mode: horizontal-tb;
  word-break: keep-all;
}

#caseSections .build-step__text {
  margin: 0;
  color: var(--case-text-secondary);
  font-size: 15px;
  line-height: 1.72;
  writing-mode: horizontal-tb;
  word-break: normal;
  overflow-wrap: break-word;
}

.delivery-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 16px;
  margin: 28px 0 0;
}

.delivery-stat {
  padding: 28px 18px;
  border: 1px solid var(--case-border);
  border-radius: var(--case-radius-md);
  background: #fff;
  text-align: center;
  box-shadow: var(--case-shadow-sm);
}

.delivery-stat__value {
  color: var(--case-primary);
  font-size: 40px;
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.1;
}

.delivery-stat__label {
  margin-top: 8px;
  color: var(--case-text-tertiary);
  font-size: 14px;
}

/* 流程结果 */
.outcome-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 16px;
  margin: 28px 0 0;
}

.outcome-card {
  min-width: 0;
  min-height: 0;
  padding: 26px 24px;
  border: 1px solid var(--case-border);
  border-radius: var(--case-radius-md);
  background: #fff;
  box-shadow: var(--case-shadow-sm);
}

.outcome-card__icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 13px;
  background: var(--color-primary-light, #eef3ff);
  color: var(--case-primary);
}

.outcome-card__title {
  margin: 0 0 10px;
  color: var(--case-text);
  font-size: 19px;
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.4;
}

.outcome-card__text {
  margin: 0;
  color: var(--case-text-secondary);
  font-size: 15px;
  line-height: 1.72;
}

/* 场景背景 */
.scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.scene-grid__chain {
  display: flex;
  justify-content: flex-end;
}

.scene-chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.scene-chain__item {
  padding: 12px 18px;
  border: 1px solid var(--case-border-primary);
  border-radius: 999px;
  background: var(--color-primary-light, #eef3ff);
  color: var(--case-primary);
  font-size: 15px;
  font-weight: var(--font-weight-medium, 500);
  white-space: nowrap;
}

.scene-chain__arrow {
  display: grid;
  place-items: center;
  color: var(--case-primary);
}

.scene-chain__arrow svg {
  width: 20px;
  height: 20px;
  display: block;
}

/* 解决方案架构 */
.arch {
  margin-top: 10px;
}

.arch-chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding: 22px 24px;
  border: 1px solid var(--case-border);
  border-radius: var(--case-radius-lg);
  background: linear-gradient(135deg, #ffffff, #f5f9ff);
}

.arch-node {
  padding: 10px 20px;
  border: 1px solid var(--case-border);
  border-radius: 999px;
  background: #fff;
  color: var(--case-text);
  font-size: 15px;
  font-weight: var(--font-weight-medium, 500);
  white-space: nowrap;
  box-shadow: var(--case-shadow-sm);
}

.arch-chain__arrow {
  display: grid;
  place-items: center;
  color: var(--case-primary);
}

.arch-chain__arrow svg {
  width: 22px;
  height: 22px;
  display: block;
}

.arch-layers {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.arch-layer {
  display: grid;
  grid-template-columns: 136px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 20px;
  border: 1px solid var(--case-border);
  border-radius: var(--case-radius-md);
  background: #fff;
  box-shadow: var(--case-shadow-sm);
}

.arch-layer__label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding-inline: 14px;
  border-radius: 10px;
  background: rgba(36, 84, 255, 0.08);
  color: var(--case-primary);
  font-size: 15px;
  font-weight: var(--font-weight-semibold, 600);
  white-space: nowrap;
}

.arch-layer__items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}

.arch-layer__item {
  padding: 8px 14px;
  border: 1px solid var(--case-border);
  border-radius: 999px;
  background: var(--case-bg, #f4f7fb);
  color: var(--case-text-secondary);
  font-size: 14px;
  line-height: 1.5;
}

#relatedWrap {
  padding-block: 76px;
  background: linear-gradient(180deg, #f5f8fc, #edf3f9);
}

#relatedWrap .case-inner {
  max-width: var(--case-wide-width);
}

.related-cases {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 18px;
  margin: 30px 0 0;
}

.related-case {
  display: block;
  min-height: 260px;
  padding: 26px;
  border: 1px solid var(--case-border);
  border-radius: var(--case-radius-md);
  background: #fff;
  color: inherit;
  text-decoration: none;
  box-shadow: var(--case-shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.related-case:hover {
  transform: translateY(-4px);
  border-color: var(--case-border-primary);
  box-shadow: var(--case-shadow-md);
}

.related-case__tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 11px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: var(--color-primary-light, #eef3ff);
  color: var(--case-primary);
  font-size: 14px;
  font-weight: var(--font-weight-medium, 500);
}

.related-case h4 {
  margin: 0 0 12px;
  color: var(--case-text);
  font-size: 20px;
  line-height: 1.45;
}

.related-case p {
  display: -webkit-box;
  overflow: hidden;
  margin: 0;
  color: var(--case-text-secondary);
  font-size: 15px;
  line-height: 1.72;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
}

#cta {
  padding: 72px 0 50px;
  background: var(--case-bg);
}

#cta .case-inner {
  max-width: var(--case-wide-width);
}

.consult-cta {
  position: relative;
  overflow: hidden;
  margin: 0;
  padding: 48px 40px;
  border-radius: 22px;
  background:
    radial-gradient(circle at 88% 10%, rgba(255,255,255,.16), transparent 24%),
    linear-gradient(135deg, #1545f7 0%, #3459ff 48%, #6f58ff 100%);
  color: #fff;
  text-align: center;
  box-shadow: 0 18px 48px rgba(36,84,255,.18);
}

.consult-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .12;
  background-image:
    linear-gradient(rgba(255,255,255,.20) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.20) 1px, transparent 1px);
  background-size: 42px 42px;
}

.consult-cta > * {
  position: relative;
  z-index: 1;
}

.consult-cta h3 {
  margin: 0 0 10px;
  color: #fff;
  font-size: clamp(26px, 2vw, 34px);
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.3;
}

.consult-cta p {
  max-width: 780px;
  margin: 0 auto 26px;
  color: rgba(255,255,255,.84);
  font-size: 16px;
  line-height: 1.75;
}

.btn--cta-white {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 132px;
  height: 48px;
  padding: 0 26px;
  border: 0;
  border-radius: var(--radius-sm, 10px);
  background: #fff;
  color: var(--case-primary);
  font-size: var(--text-btn, 15px);
  font-weight: var(--font-weight-medium, 500);
  text-decoration: none;
  box-shadow: 0 8px 18px rgba(15,33,86,.12);
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease;
}

.btn--cta-white:hover {
  transform: translateY(-2px);
  background: #f8fbff;
  color: var(--case-primary);
  box-shadow: 0 12px 24px rgba(15,33,86,.18);
}

.xlx-u-73 {
  width: var(--case-shell-width);
  max-width: var(--case-wide-width);
  margin: 0 auto;
  padding: 6px 0 38px;
  text-align: center;
}

.xlx-u-62 {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding-inline: 16px;
  border-radius: 999px;
  color: var(--case-text-secondary);
  font-size: 14px;
  text-decoration: none;
  transition: color .2s ease, background-color .2s ease;
}

.xlx-u-62:hover {
  background: rgba(36,84,255,.06);
  color: var(--case-primary);
}

.faq-block.faq-slot {
  width: min(var(--case-shell-width), 1180px);
  margin-inline: auto;
  padding: 36px 0 76px;
}

.FaqRelated__title {
  margin: 0 0 20px;
  color: var(--case-text);
  font-size: clamp(26px, 1.8vw, 32px);
  font-weight: var(--font-weight-semibold, 600);
  line-height: 1.3;
}

.FaqRelated__list {
  display: grid;
  gap: 12px;
}

.FaqItem {
  overflow: hidden;
  border: 1px solid var(--case-border);
  border-radius: 14px;
  background: #fff;
}

.FaqItem__q {
  margin: 0;
}

.FaqItem__toggle {
  width: 100%;
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  border: 0;
  background: transparent;
  color: var(--case-text);
  font: inherit;
  font-size: 16px;
  font-weight: var(--font-weight-medium, 500);
  text-align: left;
  cursor: pointer;
}

.FaqItem__icon {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  color: var(--case-text-tertiary);
}

.FaqItem__icon svg {
  width: 100%;
  height: 100%;
}

.FaqItem__aInner {
  padding: 0 18px 20px;
}

.FaqItem__aInner p {
  margin: 0 0 10px;
  color: var(--case-text-secondary);
  font-size: 15px;
  line-height: 1.78;
}

.FaqItem__aInner p:last-child {
  margin-bottom: 0;
}

.FaqRelated__more {
  margin-top: 16px;
  font-size: 14px;
}

.FaqRelated__more a {
  color: var(--case-primary);
  text-decoration: none;
}

.case-rich {
  margin-top: 6px;
}

.case-rich p {
  margin: 0 0 14px;
}

.case-rich h3,
.case-rich h4 {
  margin: 24px 0 10px;
}

.case-rich ul,
.case-rich ol {
  margin: 0 0 16px;
  padding-left: 22px;
}

.case-rich li {
  margin-bottom: 7px;
}

.case-rich a {
  color: var(--case-primary);
}

.case-rich blockquote {
  margin: 18px 0;
  padding: 12px 18px;
  border-left: 3px solid var(--case-primary);
  background: var(--case-bg-soft);
  color: var(--case-text-secondary);
}

.case-body-empty {
  padding: 40px 28px;
  border: 1px dashed var(--case-border-primary);
  border-radius: var(--case-radius-md);
  background: #fff;
  color: var(--case-text-secondary);
  font-size: 16px;
  line-height: 1.8;
  text-align: center;
}

.case-body-empty a {
  color: var(--case-primary);
}

.bottom-bar {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: var(--z-overlay, 80);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px max(10px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--color-border-default, var(--case-border));
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.bottom-bar__icon {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--color-border-default, var(--case-border));
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
}

.bottom-bar__cta {
  flex: 1;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm, 10px);
  background: var(--btn-primary-gradient, var(--case-primary));
  color: #fff;
  font-size: var(--text-btn, 15px);
  font-weight: var(--font-weight-medium, 500);
  text-decoration: none;
}

.back-to-top {
  position: fixed;
  right: 16px;
  bottom: 96px;
  z-index: 70;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--color-border-default, var(--case-border));
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--case-shadow-sm);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity .2s ease, transform .2s ease;
}

.back-to-top--visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.wechat-share-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  flex-direction: column;
  align-items: flex-end;
  padding: 20px;
  background: rgba(0,0,0,.84);
}

.wechat-share-overlay.show {
  display: flex;
}

.wechat-share-arrow {
  width: 60px;
  margin: 10px 20px 0 0;
}

.wechat-share-text {
  margin: 8px 20px 0 0;
  color: #fff;
  font-size: 14px;
  line-height: 1.6;
  text-align: right;
}

.save-toast {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 9998;
  display: none;
  padding: 14px 26px;
  border-radius: 10px;
  background: rgba(0,0,0,.82);
  color: #fff;
  font-size: 15px;
  white-space: nowrap;
  transform: translate(-50%,-50%);
}

.save-toast.show {
  display: block;
}

.bottom-spacer {
  height: 112px;
}

body.save-mode #caseHeader,
body.save-mode .bottom-bar,
body.save-mode .back-to-top,
body.save-mode .wechat-share-overlay,
body.save-mode .save-toast {
  display: none !important;
}

@media (min-width: 768px) {
  :root {
    --case-shell-width: calc(100vw - 56px);
  }

  .bottom-bar,
  .back-to-top {
    display: none;
  }

  .bottom-spacer {
    height: 0;
  }
}

@media (min-width: 1024px) {
  :root {
    --case-shell-width: calc(100vw - 88px);
  }
}

@media (min-width: 1280px) {
  :root {
    --case-shell-width: calc(100vw - 120px);
  }
}

@media (min-width: 1440px) {
  :root {
    --case-shell-width: calc(100vw - 160px);
  }
}

@media (min-width: 1600px) {
  :root {
    --case-shell-width: calc(100vw - 240px);
  }
}

@media (min-width: 1920px) {
  :root {
    --case-shell-width: calc(100vw - 360px);
  }
}

@media (max-width: 1199px) {
  .related-caps__tags {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }

  #caseSections .build-flow {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }

  #caseSections .build-flow::before {
    display: none;
  }

  .outcome-grid {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }

  .delivery-stats {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }

  .related-cases {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
}

@media (max-width: 767px) {
  :root {
    --case-shell-width: calc(100vw - 28px);
  }

  #caseHeader.SiteHeader {

    background: rgba(255,255,255,.97);
  }

  .case-hero {
    min-height: 340px;
    padding-top: 116px; 
  }

  .case-hero__content {
    padding-bottom: 40px;
  }

  .case-hero__title {
    max-width: none;
    font-size: clamp(30px, 8vw, 36px);
    line-height: 1.2;
  }

  .case-hero__meta {
    font-size: 14px;
  }

  .results-banner {
    margin-top: 0;
    padding: 24px 20px;
    border-radius: 17px;
  }

  .results-banner__headline {
    font-size: 27px;
  }

  .results-banner__grid {
    grid-template-columns: 1fr;
  }

  .related-caps {
    padding: 48px 0 18px;
  }

  .related-caps__tags {
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 10px;
  }

  .related-caps__tag {
    min-height: 96px;
    padding: 16px;
    font-size: 15px;
  }

  .case-section {
    padding-block: 50px;
  }

  .case-section h2 {
    font-size: 28px;
  }

  .case-section p,
  .case-rich {
    font-size: 16px;
    line-height: 1.78;
  }

  #caseSections > .case-section[data-case-section="background"] > .case-outer > .case-inner {
    padding: 26px 20px;
    border-radius: 16px;
  }

  .challenge-cards {
    grid-template-columns: 1fr;
  }

  .challenge-card {
    padding: 20px;
  }

  #caseSections .build-flow {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  #caseSections .build-step {
    min-height: 0;
  }

  #caseSections .build-step::before {
    display: none;
  }

  .outcome-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .outcome-card {
    padding: 24px 20px;
  }

  .scene-grid {
    grid-template-columns: 1fr;
  }

  .scene-grid__chain,
  .scene-chain {
    justify-content: flex-start;
  }

  .arch-chain {
    gap: 10px;
    padding: 16px;
  }

  .arch-node {
    padding: 8px 16px;
    font-size: 14px;
  }

  .arch-layer {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .arch-layer__label {
    justify-self: start;
  }

  .delivery-stats {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }

  #relatedWrap {
    padding-block: 54px;
  }

  .related-cases {
    grid-template-columns: 1fr;
  }

  .related-case {
    min-height: 0;
    padding: 22px;
  }

  #cta {
    padding: 52px 0 34px;
  }

  .consult-cta {
    padding: 36px 20px;
    border-radius: 18px;
  }

  .consult-cta h3 {
    font-size: 26px;
  }

  .faq-block.faq-slot {
    padding: 32px 0 60px;
  }

  .FaqItem__toggle {
    min-height: 56px;
    padding: 15px 16px;
    font-size: 15px;
  }

  .FaqItem__aInner {
    padding: 0 16px 18px;
  }
}

@media (max-width: 430px) {
  :root {
    --case-shell-width: calc(100vw - 24px);
  }

  .related-caps__tags {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 390px) {
  .case-hero__title {
    font-size: 30px;
  }

  .case-section h2 {
    font-size: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .related-caps__tag,
  .related-case,
  .solution-card,
  .btn--cta-white,
  .back-to-top {
    transition: none;
  }

  .related-caps__tag:hover,
  .related-case:hover,
  .solution-card:hover,
  .btn--cta-white:hover {
    transform: none;
  }
}