:root {
  --ink: #181916;
  --ink-2: #24251f;
  --paper: #f7f7f4;
  --white: #fff;
  --muted: #656961;
  --line: #d4d6cd;
  --cyan: #176b5c;
  --coral: #c74a34;
  --yellow: #d8b44d;
  --max: 1200px;
  --pad: clamp(20px, 4vw, 48px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.72;
  letter-spacing: 0;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }
.skip-link { position: absolute; top: -80px; left: 20px; z-index: 200; padding: 10px 14px; background: var(--yellow); color: var(--ink); }
.skip-link:focus { top: 16px; }
.container { width: min(var(--max), calc(100% - var(--pad) * 2)); margin-inline: auto; }
.section { padding: 92px 0; }
.section-dark { background: var(--ink); color: var(--white); }
.section-white { background: var(--white); }
.eyebrow { display: none; }
.eyebrow.cyan { color: var(--cyan); }
.title-xl, .title-lg, .title-md, h1, h2, h3 { margin-top: 0; letter-spacing: 0; font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif; }
.title-xl { font-size: 56px; line-height: 1.13; font-weight: 700; }
.title-lg { font-size: 42px; line-height: 1.2; font-weight: 700; }
.title-md { font-size: 30px; line-height: 1.25; font-weight: 700; }
.lede { max-width: 720px; font-size: 20px; color: #d3d8d7; }
.muted { color: var(--muted); }
.accent { color: var(--cyan); }
.hero .accent, .section-dark .accent { color: #8fc6ba; }
.coral { color: var(--coral); }
.media-badge { display: none; }
.media-badge::before { content: ""; width: 6px; height: 6px; background: var(--coral); }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 11px 20px; border: 1px solid currentColor; font-size: 14px; font-weight: 750; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { border-color: var(--ink); background: var(--ink); color: var(--white); }
.button-cyan { border-color: var(--cyan); background: var(--cyan); color: var(--ink); }
.button-dark { border-color: var(--ink); background: var(--ink); color: var(--white); }
.button-ghost { color: var(--white); background: rgba(13,16,17,.2); }
.icon-arrow { font-size: 18px; line-height: 1; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.98); color: var(--ink); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 250px; }
.brand-mark { position: relative; width: 33px; height: 33px; flex: 0 0 auto; transform: rotate(-4deg); }
.brand-mark::before { content: ""; position: absolute; inset: 0 9px 0 0; background: #3da38f; clip-path: polygon(0 0,100% 0,64% 44%,100% 44%,100% 63%,52% 63%,20% 100%,0 100%); }
.brand-mark::after { content: ""; position: absolute; width: 8px; height: 8px; right: 0; top: 0; background: var(--coral); }
.brand-cn { display: block; font-size: 15px; font-weight: 800; line-height: 1.2; }
.brand-en { display: block; margin-top: 3px; color: #747971; font-size: 9px; line-height: 1; letter-spacing: 0; }
.nav-links { display: flex; align-items: center; gap: 19px; font-size: 13px; }
.nav-links a { position: relative; padding: 8px 0; }
.nav-links a[aria-current="page"], .nav-links a:hover { color: var(--cyan); }
.nav-cta { padding: 10px 15px !important; background: var(--ink); color: var(--white) !important; font-weight: 750; }
.menu-button { display: none; width: 44px; height: 44px; border: 0; background: transparent; color: var(--ink); font-size: 0; }
.menu-button::before, .menu-button::after { content: ""; display: block; width: 23px; height: 2px; margin: 7px auto; background: currentColor; transition: transform .2s ease; }

.hero { position: relative; min-height: 620px; display: grid; align-items: end; overflow: hidden; background: var(--ink); color: var(--white); }
.hero-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .68; filter: saturate(.68) contrast(1.04); }
.hero-overlay { position: absolute; inset: 0; background: rgba(10,11,9,.62); }
.hero-content { position: relative; padding-top: 100px; padding-bottom: 82px; }
.hero-copy { max-width: 850px; }
.hero-note { position: absolute; right: 0; bottom: 82px; width: 270px; padding-left: 24px; border-left: 1px solid rgba(255,255,255,.35); }
.hero-note strong { display: block; color: var(--yellow); font-size: 48px; font-weight: 500; line-height: 1; }
.hero-note span { display: block; margin-top: 10px; font-weight: 700; }
.hero-note small { display: block; margin-top: 6px; color: #aeb4b3; }
.hero .media-badge { position: absolute; top: 24px; right: 0; }
.service-hero { min-height: 610px; }
.service-hero .hero-copy { max-width: 900px; }
.service-hero .title-xl { max-width: 950px; }
.definition-bar { background: #e9eee8; color: var(--ink); border-bottom: 1px solid var(--line); }
.definition-inner { display: grid; grid-template-columns: 210px 1fr; gap: 44px; align-items: start; padding: 32px 0; }
.definition-inner strong { font-size: 13px; letter-spacing: 0; text-transform: uppercase; }
.definition-inner p { margin: 0; max-width: 870px; font-size: 18px; font-weight: 650; }

.ticker { overflow: hidden; background: var(--cyan); color: var(--ink); }
.ticker-track { min-height: 48px; display: flex; align-items: center; justify-content: center; gap: 32px; white-space: nowrap; font-size: 12px; font-weight: 850; }
.ticker-track b { font-size: 18px; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin-bottom: 48px; }
.section-head > :first-child { max-width: 750px; }
.section-head > p { max-width: 430px; margin: 0; color: var(--muted); }
.section-dark .section-head > p { color: #aab1b0; }

.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.service-item { position: relative; min-height: 290px; padding: 32px 30px; border-right: 1px solid var(--line); }
.service-item:last-child { border-right: 0; }
.service-item .number { display: none; }
.service-icon { display: none; }
.service-item:nth-child(2) .service-icon, .service-item:nth-child(3) .service-icon { background: transparent; color: var(--ink); }
.service-item h3 { margin: 24px 0 12px; font-size: 23px; }
.service-item p { margin: 0; color: var(--muted); font-size: 14px; }
.service-item .link-arrow { position: absolute; top: 32px; right: 30px; font-size: 24px; }

.work-grid { display: grid; grid-template-columns: 1.35fr .65fr; grid-template-rows: 250px 250px; gap: 14px; }
.work-card { position: relative; overflow: hidden; background: var(--ink); color: var(--white); }
.work-card:first-child { grid-row: 1 / span 2; }
.work-card img { width: 100%; height: 100%; object-fit: cover; opacity: .66; filter: saturate(.82); transition: transform .5s ease; }
.work-card:hover img { transform: scale(1.025); }
.work-card-content { position: absolute; inset: auto 25px 24px; display: flex; align-items: end; justify-content: space-between; gap: 20px; }
.work-card .tag { color: #9ad0c5; font-size: 10px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
.work-card h3 { margin: 6px 0 0; font-size: 22px; line-height: 1.25; }
.work-card:first-child h3 { font-size: 30px; }
.square-arrow { width: 38px; height: 38px; flex: 0 0 auto; display: grid; place-items: center; background: var(--white); color: var(--ink); font-size: 20px; }
.chart-art { height: 100%; display: grid; grid-template-columns: repeat(8,1fr); align-items: end; gap: 7px; padding: 42px 35px 68px; background: #171b1c; }
.chart-art i { display: block; background: var(--cyan); }
.chart-art i:nth-child(1) { height: 20%; }.chart-art i:nth-child(2) { height: 44%; }.chart-art i:nth-child(3) { height: 33%; }.chart-art i:nth-child(4) { height: 59%; background: var(--yellow); }.chart-art i:nth-child(5) { height: 49%; }.chart-art i:nth-child(6) { height: 76%; background: var(--coral); }.chart-art i:nth-child(7) { height: 68%; }.chart-art i:nth-child(8) { height: 91%; }

.geo-feature { position: relative; overflow: hidden; }
.geo-feature::before { content: none; }
.split { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(50px, 8vw, 110px); align-items: center; }
.feature-list { margin-top: 34px; border-top: 1px solid rgba(255,255,255,.17); }
.feature-list > div { display: grid; grid-template-columns: 42px 1fr; gap: 12px; align-items: center; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.17); }
.feature-list b { color: var(--cyan); font-size: 11px; }
.feature-list small { display: none; }
.answer-preview { position: relative; padding: 28px; background: #f1f2ed; color: var(--ink); border: 1px solid var(--line); box-shadow: none; }
.answer-meta { display: flex; gap: 9px; align-items: center; padding-bottom: 18px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.answer-meta i { width: 7px; height: 7px; background: var(--coral); border-radius: 50%; }
.answer-preview h3 { margin: 24px 0 18px; font-size: 18px; }
.answer-box { padding: 18px; background: var(--white); border-left: 3px solid var(--cyan); color: var(--muted); font-size: 13px; }
.answer-box strong { color: var(--ink); }
.source-chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 15px; }
.source-chips span { padding: 5px 9px; background: #e1e4de; color: #5d6564; font-size: 10px; }

.facts { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.fact { padding: 25px 24px 0 0; position: relative; }
.fact::before { content: ""; position: absolute; top: -6px; width: 10px; height: 10px; background: var(--coral); }
.fact:nth-child(2)::before { background: var(--yellow); }.fact:nth-child(3)::before { background: var(--cyan); }.fact:nth-child(4)::before { background: var(--ink); }
.fact small { color: var(--muted); font-size: 10px; }
.fact h3 { margin: 8px 0 7px; font-size: 18px; }
.fact p { margin: 0; color: var(--muted); font-size: 13px; }

.content-grid { display: grid; grid-template-columns: minmax(0,1.5fr) minmax(250px,.5fr); gap: clamp(40px, 7vw, 90px); align-items: start; }
.prose h2 { margin: 70px 0 18px; font-size: 38px; line-height: 1.18; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin: 32px 0 10px; font-size: 20px; }
.prose p, .prose li { color: #4f5756; }
.prose ul { padding-left: 20px; }
.quick-facts { position: sticky; top: 108px; padding-left: 24px; border-left: 3px solid var(--cyan); }
.quick-facts h2 { font-size: 18px; }
.quick-facts dl { margin: 0; }
.quick-facts div { padding: 16px 0; border-bottom: 1px solid var(--line); }
.quick-facts dt { color: var(--muted); font-size: 11px; }
.quick-facts dd { margin: 4px 0 0; font-weight: 700; }
.deliverables { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.deliverable { min-height: 170px; padding: 25px; background: var(--paper); }
.deliverable strong { display: block; font-size: 18px; }
.deliverable p { margin-bottom: 0; font-size: 13px; }
.workflow { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: rgba(255,255,255,.15); }
.workflow-step { min-height: 210px; padding: 26px; background: var(--ink-2); }
.workflow-step b { display: none; }
.workflow-step h3 { margin: 0 0 10px; font-size: 20px; }
.workflow-step p { margin: 0; color: #aab0af; font-size: 13px; }
.audience-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.audience-item { padding: 25px 0; border-top: 2px solid var(--ink); }
.audience-item h3 { font-size: 19px; }
.audience-item p { margin: 0; color: var(--muted); font-size: 13px; }

.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 30px; padding: 24px 0; font-size: 18px; font-weight: 750; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; flex: 0 0 auto; font-size: 25px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 850px; margin: -5px 0 25px; color: var(--muted); }

.case-hero { padding: 100px 0 64px; background: var(--ink); color: var(--white); }
.case-meta { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 38px; color: #abb1b0; font-size: 12px; }
.case-cover { position: relative; height: min(65vw, 700px); overflow: hidden; background: var(--ink); }
.case-cover img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.78); }
.case-cover .media-badge { position: absolute; top: 22px; right: 22px; }
.results { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.result { padding: 28px; background: var(--white); }
.result strong { display: block; font-size: 28px; color: var(--coral); }
.result span { color: var(--muted); font-size: 12px; }
.evidence-note { padding: 18px 20px; border: 1px solid #d4b835; background: #fff8ce; color: #584c00; font-size: 13px; }

/* Simple case detail template: fixed fields, no flexible page builder required. */
.case-detail-head { padding: 62px 0 48px; background: var(--paper); border-bottom: 1px solid var(--line); }
.case-detail-head .title-xl { max-width: 820px; margin-bottom: 20px; font-size: 44px; line-height: 1.22; }
.case-summary { max-width: 760px; margin: 0; color: var(--muted); font-size: 18px; }
.case-info { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); margin: 32px 0 0; border-top: 1px solid var(--line); }
.case-info div { min-width: 0; display: flex; gap: 10px; padding: 13px 18px 13px 0; border-bottom: 1px solid var(--line); }
.case-info dt { flex: 0 0 auto; color: var(--muted); font-size: 12px; }
.case-info dd { min-width: 0; margin: 0; font-size: 12px; font-weight: 700; overflow-wrap: anywhere; }
.case-detail-cover { width: min(var(--max),calc(100% - var(--pad) * 2)); margin: 34px auto 0; background: var(--white); }
.case-detail-cover img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; filter: saturate(.78); }
.case-detail-cover figcaption { padding: 10px 0; color: var(--muted); font-size: 11px; }
.case-detail-body { padding: 60px 0 72px; background: var(--white); }
.case-detail-article { width: min(760px,calc(100% - var(--pad) * 2)); margin-inline: auto; }
.case-detail-section { padding: 0 0 34px; margin: 0 0 34px; border-bottom: 1px solid var(--line); }
.case-detail-section:last-of-type { margin-bottom: 0; }
.case-detail-section h2 { margin: 0 0 18px; font-size: 30px; line-height: 1.3; }
.case-detail-section h3 { margin: 28px 0 8px; font-family: inherit; font-size: 18px; }
.case-detail-section p, .case-detail-section li { color: #484d46; }
.case-detail-section ul { padding-left: 20px; }
.case-detail-section li { margin: 8px 0; }
.case-detail-update { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 34px; color: var(--muted); font-size: 11px; }
.case-detail-actions { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 30px; font-size: 13px; font-weight: 700; }
.case-related { padding: 44px 0; background: var(--paper); border-top: 1px solid var(--line); }
.case-related-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.case-related h2 { margin: 0; font-size: 22px; }
.case-related-links { display: flex; flex-wrap: wrap; gap: 18px; font-size: 13px; font-weight: 700; }

.trust-strip { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.trust-item { padding: 20px; background: var(--white); }
.trust-item small { display: block; color: var(--muted); }
.trust-item strong { display: block; margin-top: 6px; }
.cta { padding: 68px 0; background: #31564b; color: var(--white); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.cta h2 { margin-bottom: 8px; font-size: 42px; }
.cta p { margin: 0; color: rgba(255,255,255,.8); }

.site-footer { padding: 58px 0 28px; background: #080a0b; color: var(--white); }
.footer-grid { display: grid; grid-template-columns: 1.45fr .65fr .65fr 1fr; gap: 42px; padding-bottom: 42px; }
.footer-grid .brand { min-width: 0; }
.footer-grid p, .footer-grid li { color: #808887; font-size: 12px; }
.footer-grid p { max-width: 300px; }
.footer-grid h2 { margin: 0 0 14px; font-size: 13px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin: 7px 0; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 20px; border-top: 1px solid #242829; color: #5f6766; font-size: 10px; }
.notice { display: none; }

/* Editorial content system */
.page-hero { padding: 68px 0 48px; background: var(--paper); border-bottom: 1px solid var(--line); }
.page-hero .title-xl { max-width: 880px; }
.page-intro { max-width: 720px; margin: 22px 0 0; color: var(--muted); font-size: 19px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px; color: var(--muted); font-size: 12px; }
.breadcrumb span::after, .breadcrumb a::after { content: "/"; margin-left: 8px; color: #a4a79f; }
.breadcrumb span:last-child::after { content: none; }
.section-compact { padding: 58px 0; }
.editorial-label { color: var(--cyan); font-size: 11px; font-weight: 750; }
.featured-story { display: grid; grid-template-columns: minmax(0,1.45fr) minmax(320px,.75fr); min-height: 480px; background: var(--ink); color: var(--white); }
.featured-story-media { min-height: 480px; overflow: hidden; }
.featured-story-media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.72); }
.featured-story-copy { display: flex; flex-direction: column; justify-content: space-between; padding: 44px; }
.featured-story-copy h2 { margin: 16px 0; font-size: 32px; line-height: 1.28; }
.featured-story-copy p { color: #b9bdb7; }
.story-meta { display: flex; flex-wrap: wrap; gap: 14px; color: #8e948d; font-size: 11px; }
.story-link { display: inline-flex; align-items: center; gap: 9px; margin-top: 28px; font-weight: 750; }
.content-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 28px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.content-toolbar h2 { margin: 0; font-size: 28px; }
.filter-list { display: flex; flex-wrap: wrap; gap: 9px; }
.filter-list a { padding: 6px 10px; border: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.filter-list a[aria-current="true"] { background: var(--ink); color: var(--white); border-color: var(--ink); }
.content-list { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 34px 22px; }
.content-card { min-width: 0; display: flex; flex-direction: column; }
.content-card-media { display: block; width: 100%; flex: 0 0 auto; aspect-ratio: 16 / 10; overflow: hidden; background: #dadbd4; }
.content-card-media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.72); transition: transform .35s ease; }
.content-card:hover .content-card-media img { transform: scale(1.02); }
.content-card-body { padding-top: 18px; }
.content-card h3 { margin: 9px 0; font-size: 21px; line-height: 1.38; }
.content-card p { margin: 0; color: var(--muted); font-size: 14px; }
.content-card .story-meta { margin-top: 14px; color: #7a7f77; }
.content-card-text { padding-top: 0; border-top: 2px solid var(--ink); }
.content-card-text .content-card-body { padding-top: 20px; }
.case-index-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 34px 22px; align-items: start; }
.case-index-grid .content-card { grid-column: auto; }
.page-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 28px; color: var(--muted); font-size: 12px; }
.article-layout { display: grid; grid-template-columns: minmax(0,1fr) 280px; gap: 80px; align-items: start; }
.article-body { max-width: 760px; }
.article-body .lede { color: #444942; font-size: 21px; }
.article-body h2 { margin: 58px 0 16px; font-size: 32px; line-height: 1.25; }
.article-body h3 { margin: 34px 0 10px; font-size: 22px; }
.article-body p, .article-body li { color: #494e47; }
.article-body blockquote { margin: 34px 0; padding: 22px 24px; border-left: 3px solid var(--coral); background: #ecece5; color: #393d37; }
.article-aside { position: sticky; top: 108px; border-top: 2px solid var(--ink); }
.article-aside section { padding: 20px 0; border-bottom: 1px solid var(--line); }
.article-aside h2 { margin-bottom: 10px; font-size: 14px; }
.article-aside p, .article-aside li { color: var(--muted); font-size: 12px; }
.article-aside ul { margin: 0; padding-left: 18px; }
.byline { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; margin-top: 36px; border: 1px solid var(--line); background: var(--line); }
.byline > div { padding: 18px; background: var(--white); }
.byline small { display: block; color: var(--muted); font-size: 11px; }
.byline strong { display: block; margin-top: 5px; }
.source-list { padding: 22px 0 0 20px; border-top: 1px solid var(--line); }
.source-list li { margin: 8px 0; }
.pagination { display: flex; gap: 8px; margin-top: 42px; }
.pagination a, .pagination span { min-width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line); font-size: 12px; }
.pagination [aria-current="page"] { background: var(--ink); color: var(--white); }
.publishing-note { display: grid; grid-template-columns: 190px 1fr; gap: 32px; padding: 28px; border: 1px solid var(--line); background: var(--white); }
.publishing-note h2 { margin: 0; font-size: 18px; }
.publishing-note p { margin: 0; color: var(--muted); }

@media (max-width: 900px) {
  .nav-links { display: none; position: absolute; top: 76px; left: 0; right: 0; padding: 22px var(--pad) 28px; background: var(--white); border-top: 1px solid var(--line); box-shadow: 0 16px 24px rgba(24,25,22,.08); }
  .nav-links.is-open { display: grid; gap: 9px; }
  .nav-cta { width: fit-content; }
  .menu-button { display: block; }
  .hero-note { display: none; }
  .hero-copy { max-width: 780px; }
  .section-head { display: block; }
  .section-head > p { margin-top: 22px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-item { min-height: 250px; border-right: 0; border-bottom: 1px solid var(--line); }
  .service-item:last-child { border-bottom: 0; }
  .service-icon { margin: 34px 0 22px; }
  .split { grid-template-columns: 1fr; }
  .content-grid { grid-template-columns: 1fr; }
  .quick-facts { position: static; order: -1; }
  .workflow { grid-template-columns: repeat(2,1fr); }
  .facts, .trust-strip { grid-template-columns: repeat(2,1fr); row-gap: 34px; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-grid > :last-child { grid-column: 1 / -1; }
  .featured-story { grid-template-columns: 1fr; }
  .featured-story-media { min-height: 360px; }
  .content-list { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .case-index-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .article-layout { grid-template-columns: 1fr; gap: 48px; }
  .article-aside { position: static; }
  .case-info { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 640px) {
  .brand-cn { font-size: 13px; }
  .brand-en { font-size: 8px; }
  .title-xl { font-size: 36px; line-height: 1.08; }
  .title-lg { font-size: 34px; }
  .title-md { font-size: 28px; }
  .hero { min-height: 640px; align-items: center; }
  .hero-content { padding-top: 110px; padding-bottom: 70px; }
  .hero-overlay { background: rgba(5,8,9,.67); }
  .hero .media-badge { top: 20px; left: 0; right: auto; }
  .button-row { align-items: stretch; }
  .button-row .button { flex: 1 1 180px; }
  .definition-inner { grid-template-columns: 1fr; gap: 8px; }
  .ticker-track { justify-content: flex-start; transform: translateX(-80px); }
  .work-grid { grid-template-columns: 1fr; grid-template-rows: repeat(3,260px); }
  .work-card:first-child { grid-row: auto; }
  .work-card:first-child h3 { font-size: 23px; }
  .feature-list > div { grid-template-columns: 32px 1fr; }
  .feature-list small { display: none; }
  .answer-preview { box-shadow: none; }
  .facts, .workflow, .audience-grid, .deliverables, .results, .trust-strip { grid-template-columns: 1fr; }
  .fact { padding-bottom: 22px; }
  .workflow-step { min-height: 180px; }
  .workflow-step h3 { margin-top: 28px; }
  .cta-inner { display: block; }
  .cta .button { margin-top: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child, .footer-grid > :last-child { grid-column: 1 / -1; }
  .footer-bottom { display: block; }
  .case-cover { height: 75vw; }
  .page-hero { padding: 58px 0 42px; }
  .page-intro { font-size: 17px; }
  .featured-story-media { min-height: 250px; }
  .featured-story-copy { padding: 28px 22px; }
  .featured-story-copy h2 { font-size: 28px; }
  .content-toolbar { display: block; }
  .filter-list { margin-top: 18px; }
  .content-list { grid-template-columns: 1fr; }
  .case-index-grid { grid-template-columns: 1fr; }
  .article-body h2 { font-size: 28px; }
  .prose h2 { font-size: 28px; }
  .cta h2 { font-size: 34px; }
  .byline { grid-template-columns: 1fr; }
  .publishing-note { grid-template-columns: 1fr; }
  .case-detail-head { padding: 42px 0 32px; }
  .case-detail-head .title-xl { font-size: 31px; line-height: 1.28; }
  .case-summary { font-size: 16px; }
  .case-info { grid-template-columns: 1fr; }
  .case-info div { padding-right: 0; }
  .case-detail-cover { margin-top: 22px; }
  .case-detail-cover img { aspect-ratio: 4 / 3; }
  .case-detail-body { padding: 54px 0 70px; }
  .case-detail-section { padding-bottom: 32px; margin-bottom: 32px; }
  .case-detail-section h2 { font-size: 26px; }
  .case-related-inner { display: block; }
  .case-related-links { margin-top: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}