/* Editorial research identity & Hero Architecture Card. High-contrast academic typography. */
.research-home { background: #faf8f3; color: #0b1520; }
.research-home .site-header { background: rgba(250, 248, 243, .96); border-color: #b8c4ca; }
.research-home .header-inner, .research-hero.container { width: min(1440px, calc(100% - 88px)); }
.research-home .header-inner { height: 82px; }
.research-home .wordmark { color: #0b1520; font-family: Georgia, 'Times New Roman', serif; font-size: 32px; font-weight: 600; gap: 7px; letter-spacing: -.9px; }
.research-home .wordmark-ai { font-weight: 400; color: #124563; }
.research-home .brand-dot { order: -1; width: 15px; height: 15px; align-self: center; margin: 0 4px 0 0; background: #c87312; }
.research-home .site-nav { gap: 28px; margin-right: 28px; color: #0b1520; font-family: var(--sans); font-size: 15px; font-weight: 500; }
.research-home .nav-contact { border-left: 1px solid #b8c4ca; padding-left: 24px; font-weight: 600; color: #124563; }
.research-home .nav-contact span { margin-left: 5px; }
.research-home .lang-switch { background: #eaeef0; border: 1px solid #96a8b2; border-radius: 999px; padding: 3px; }
.research-home .lang-sep { display: none; }
.research-home .lang-btn { min-height: 32px; padding: 5px 12px; border-radius: 999px; color: #263644; font-size: 13px; font-weight: 600; }
.research-home .lang-btn.is-active, .research-home .lang-btn[aria-pressed="true"] { background: #0b1520; color: #ffffff; text-decoration: none; box-shadow: 0 1px 3px rgba(11, 21, 32, .2); }
.research-hero { color: #0b1520; padding-top: 0; }
.research-stage { display: grid; grid-template-columns: 42% 58%; gap: 36px; align-items: start; padding-block: 38px 34px; position: relative; }
.research-copy { min-width: 0; padding-block: 8px 12px; position: relative; z-index: 1; }
.research-eyebrow { font-size: 12.5px; font-weight: 700; letter-spacing: 1.3px; text-transform: uppercase; line-height: 1.5; margin-bottom: 18px; color: #124563; }
.research-home .research-title { font-family: Georgia, 'Times New Roman', serif; font-weight: 400; font-size: clamp(38px, 3.6vw, 54px); line-height: 1.08; letter-spacing: -1.8px; color: #0b1520; margin-bottom: 20px; }
.research-title > span { display: block; }
.research-tagline { font-family: Georgia, 'Songti SC', 'STSong', 'Times New Roman', serif; font-size: clamp(20px, 1.8vw, 27px); line-height: 1.48; letter-spacing: -.35px; color: #0b1520; font-weight: 600; margin-bottom: 18px; }
.research-description { font-size: 15.5px; color: #1f2e3b; line-height: 1.72; max-width: 540px; margin-bottom: 18px; }
.hero-premise-box { background: #ffffff; border: 1px solid #96a8b2; border-left: 4px solid #c87312; border-radius: 6px; padding: 14px 16px; font-size: 14px; line-height: 1.68; color: #0b1520; margin-bottom: 22px; max-width: 540px; box-shadow: 0 4px 14px rgba(11, 21, 32, .04); }
.hero-premise-box strong { color: #124563; font-weight: 700; }
.research-link { display: inline-flex; align-items: center; gap: 14px; border-bottom: 2px solid #c87312; min-height: 42px; padding-block: 4px; font-family: Georgia, 'Songti SC', 'STSong', serif; font-size: 17.5px; font-weight: 600; color: #0b1520; transition: color .18s, border-color .18s; }
.research-link:hover { color: #124563; border-color: #124563; }
.research-link > span { font-family: var(--sans); font-size: 18px; color: #124563; transition: transform .2s; }
.research-link:hover > span { transform: translate(3px, -2px); }
.research-note { color: #394a58; font-family: var(--sans); font-size: 12.5px; font-weight: 600; letter-spacing: .2px; line-height: 1.6; margin: 20px 0 0; }

/* Hero Architecture Card */
.research-plate.hero-arch-card { position: relative; width: 100%; margin: 0; background: #ffffff; border: 1.5px solid #7c93a0; border-radius: 10px; box-shadow: 0 16px 40px rgba(11, 21, 32, .08); overflow: hidden; }
.arch-card-content { padding: 22px 24px 18px; }
.arch-card-top { border-bottom: 1px solid #cbd5dc; padding-bottom: 14px; margin-bottom: 16px; }
.arch-badge { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 1.1px; text-transform: uppercase; color: #6e3b00; background: #fef7ea; border: 1px solid #d4a55d; border-radius: 999px; padding: 3px 10px; margin-bottom: 8px; }
.research-home .arch-card-title, html[lang^="zh"] .research-home .arch-card-title { font: 600 21px/1.3 Georgia, 'Songti SC', 'STSong', serif; color: #0b1520; margin: 0 0 4px; letter-spacing: -.2px; }
.arch-card-sub { font-size: 13px; font-weight: 600; color: #124563; margin: 0; }
.arch-section { margin-bottom: 16px; }
.arch-section:last-child { margin-bottom: 0; }
.arch-section-label { font-size: 11.5px; font-weight: 700; letter-spacing: .7px; text-transform: uppercase; color: #124563; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.arch-section-label::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: #c87312; flex-shrink: 0; }
.arch-layers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.arch-layer-item { background: #f3f7f9; border: 1px solid #9fb2bd; border-top: 3px solid #124563; border-radius: 6px; padding: 11px 12px; }
.arch-layer-meta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 4px; margin-bottom: 6px; }
.arch-layer-meta code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; font-weight: 700; color: #0b1520; background: #e1ebf0; padding: 2px 6px; border-radius: 4px; }
.arch-layer-meta span { font-size: 11px; font-weight: 700; color: #6e3b00; }
.arch-layer-item strong { display: block; font-size: 13.5px; font-weight: 700; color: #0b1520; margin-bottom: 4px; line-height: 1.35; }
.arch-layer-item p { font-size: 12px; line-height: 1.55; color: #1f2e3b; margin: 0; }

.arch-pillars { display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px; }
.arch-pillar-item { background: #fcfbf8; border: 1px solid #b8c4ca; border-radius: 6px; padding: 10px 12px; }
.arch-pillar-head { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.arch-pillar-num { font-size: 11px; font-weight: 700; color: #ffffff; background: #124563; border-radius: 4px; padding: 1px 6px; font-variant-numeric: tabular-nums; }
.arch-pillar-head strong { font-size: 13px; font-weight: 700; color: #0b1520; line-height: 1.3; }
.arch-pillar-pain { font-size: 11.5px; line-height: 1.48; color: #445563; margin: 0 0 3px; }
.arch-pillar-solve { font-size: 12px; line-height: 1.5; color: #0b1520; font-weight: 600; margin: 0; border-left: 2.5px solid #c87312; padding-left: 7px; }

.arch-plate-strip { position: relative; min-height: 62px; background: #f2efe6; border-top: 1px solid #cbd5dc; overflow: hidden; display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 16px; }
.arch-plate-strip img { position: absolute; inset: -140px 0 auto 0; width: 100%; height: auto; opacity: .28; pointer-events: none; }
.plate-label { position: relative; z-index: 1; font-size: 10.5px; font-weight: 700; letter-spacing: .4px; text-transform: uppercase; color: #0b1520; background: rgba(255, 255, 255, .94); border: 1px solid #8ea3af; border-radius: 4px; padding: 4px 8px; box-shadow: 0 2px 6px rgba(11, 21, 32, .05); text-align: center; }

.research-themes { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1.5px solid #8ea3af; border-bottom: 1px solid #b8c4ca; background: rgba(255, 255, 255, .65); padding: 18px 0; }
.research-themes > div { min-height: 34px; display: flex; align-items: center; justify-content: center; gap: 14px; padding: 4px 16px; border-right: 1px solid #b8c4ca; font-family: Georgia, 'Songti SC', 'STSong', serif; font-size: 15.5px; font-weight: 600; color: #0b1520; text-align: center; }
.research-themes > div:last-child { border-right: 0; }
.research-themes i { position: relative; width: 28px; height: 1.5px; display: block; background: #7c93a0; flex-shrink: 0; }
.research-themes i::before { position: absolute; content: ''; left: -7px; top: -3px; width: 7px; height: 7px; border: 1.5px solid #c87312; border-radius: 50%; background: #ffffff; }

html[lang^="zh"] .research-eyebrow { letter-spacing: 1px; font-size: 13px; }
html[lang^="zh"] .research-home .research-title { font-size: clamp(36px, 3.45vw, 52px); font-weight: 600; letter-spacing: -1px; line-height: 1.14; }
html[lang^="zh"] .research-tagline { font-size: clamp(21px, 1.9vw, 28px); line-height: 1.5; letter-spacing: -.2px; font-weight: 600; }
html[lang^="zh"] .research-description { font-size: 15.5px; line-height: 1.78; }
html[lang^="zh"] .plate-label { font-size: 11px; letter-spacing: .3px; }

@media (max-width: 1200px) {
  .research-home .header-inner, .research-hero.container { width: calc(100% - 56px); }
  .research-home .site-nav { gap: 18px; margin-right: 18px; font-size: 14px; }
  .research-stage { grid-template-columns: 1fr; gap: 28px; }
  .research-description, .hero-premise-box { max-width: 100%; }
  .research-themes > div { font-size: 14px; gap: 10px; }
  .research-themes i { display: none; }
}
@media (max-width: 820px) {
  .arch-layers { grid-template-columns: 1fr; }
  .arch-pillars { grid-template-columns: 1fr; }
  .arch-plate-strip { height: auto; padding: 12px 14px; flex-wrap: wrap; gap: 8px; }
}
@media (max-width: 600px) {
  .research-home .header-inner, .research-hero.container { width: calc(100% - 32px); }
  .research-home .header-inner { height: 72px; }
  .research-home .site-nav { top: 71px; margin-right: 0; background: #ffffff; font-family: var(--sans); }
  .research-home .site-nav a { padding-block: 14px; font-size: 16px; }
  .research-home .wordmark { font-size: 26px; }
  .research-home .brand-dot { width: 12px; height: 12px; margin-right: 2px; }
  .research-home .header-tools { gap: 10px; flex-shrink: 0; }
  .research-home .lang-btn { padding: 5px 10px; min-height: 30px; font-size: 12.5px; white-space: nowrap; }
  .research-stage { padding-block: 24px 20px; }
  .research-home .research-title { font-size: clamp(32px, 8.6vw, 46px); letter-spacing: -1.2px; }
  .research-tagline { font-size: 20px; }
  .arch-card-content { padding: 16px 14px; }
  .arch-card-title { font-size: 19px; }
  .research-themes { grid-template-columns: 1fr; padding-block: 10px; }
  .research-themes > div { border-right: 0; border-bottom: 1px solid #d5dfe4; padding-block: 8px; font-size: 13.5px; }
  .research-themes > div:last-child { border-bottom: 0; }
}
@media (prefers-reduced-motion: reduce) { .research-link > span { transition: none; } }