:root {
    --kh-ink: #121316;
    --kh-muted: #646a73;
    --kh-canvas: #fbfcfd;
    --kh-surface: #fff;
    --kh-line: rgba(18, 22, 29, .105);
    --kh-mint: #08a88d;
    --kh-mint-strong: #008f79;
    --kh-mint-soft: #eaf8f5;
    --kh-blue: #3867f3;
    --kh-blue-soft: #eff2ff;
    --kh-violet: #7a61ed;
    --kh-violet-soft: #f3f0ff;
    --kh-coral: #ed755f;
    --kh-coral-soft: #fff1ee;
    --kh-shadow: 0 22px 65px rgba(42, 50, 63, .075), 0 3px 12px rgba(42, 50, 63, .035);
}

.knowledge-main {
    min-height: 100vh;
    overflow: clip;
    background: radial-gradient(circle at 8% 11%, rgba(8,168,141,.065), transparent 24rem), radial-gradient(circle at 92% 18%, rgba(122,97,237,.065), transparent 28rem), var(--kh-canvas);
}
.knowledge-shell { width: min(100% - 48px, 1216px); margin-inline: auto; }
.knowledge-hero { padding: clamp(132px,14vw,174px) 0 clamp(82px,9vw,118px); }
.knowledge-hero-grid { display: grid; grid-template-columns: minmax(0,.92fr) minmax(460px,1.08fr); align-items: center; gap: clamp(44px,7vw,92px); }
.knowledge-eyebrow, .knowledge-section-kicker, .whitepaper-form-kicker { display: inline-flex; align-items: center; gap: 8px; margin: 0; color: #066e5d; font-size: 12px; font-weight: 760; letter-spacing: .105em; text-transform: uppercase; }
.knowledge-eyebrow::before, .knowledge-section-kicker::before { width: 22px; height: 3px; border-radius: 999px; background: linear-gradient(90deg,var(--kh-mint),var(--kh-blue)); content: ""; }
.knowledge-hero h1, .whitepaper-detail-copy h1 { margin: 20px 0 22px; color: var(--kh-ink); font-size: clamp(52px,6.6vw,92px); font-weight: 510; letter-spacing: -.067em; line-height: .96; }
.knowledge-title-accent { color: var(--kh-violet); }
.knowledge-hero-lead, .whitepaper-detail-subtitle { max-width: 690px; margin: 0; color: var(--kh-muted); font-size: clamp(18px,1.9vw,23px); line-height: 1.55; }
.knowledge-hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.knowledge-hero-actions .apv2-button { min-height: 52px; }
.knowledge-hero-proof { display: flex; flex-wrap: wrap; gap: 12px 22px; margin: 27px 0 0; padding: 0; color: var(--kh-muted); font-size: 13px; list-style: none; }
.knowledge-hero-proof li { display: inline-flex; align-items: center; gap: 8px; }
.knowledge-hero-proof svg { width: 17px; height: 17px; color: var(--kh-mint-strong); }
.knowledge-hero-visual { position: relative; margin: 0; padding: 12px; border: 1px solid rgba(18,22,29,.08); border-radius: 34px; background: rgba(255,255,255,.85); box-shadow: var(--kh-shadow); }
.knowledge-hero-visual::before { position: absolute; inset: -20px; z-index: -1; border-radius: 44px; background: linear-gradient(135deg,rgba(8,168,141,.12),rgba(56,103,243,.06) 42%,rgba(122,97,237,.12)); filter: blur(30px); content: ""; }
.knowledge-hero-visual img { width: 100%; height: auto; aspect-ratio: 1586/992; border-radius: 25px; object-fit: contain; background: #fff; }

.knowledge-trust-strip { margin-top: -34px; padding-bottom: 86px; }
.knowledge-trust-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); overflow: hidden; border: 1px solid var(--kh-line); border-radius: 24px; background: rgba(255,255,255,.88); box-shadow: 0 14px 40px rgba(42,50,63,.04); }
.knowledge-trust-item { min-width: 0; padding: 23px 25px 24px; }
.knowledge-trust-item + .knowledge-trust-item { border-left: 1px solid var(--kh-line); }
.knowledge-trust-item strong { display: block; margin-bottom: 4px; color: var(--kh-ink); font-size: 22px; font-weight: 680; letter-spacing: -.03em; }
.knowledge-trust-item span { display: block; color: var(--kh-muted); font-size: 13px; line-height: 1.45; }

.knowledge-section { padding: clamp(78px,9vw,116px) 0; }
.knowledge-section.is-soft { border-block: 1px solid rgba(18,22,29,.065); background: rgba(244,246,247,.68); }
.knowledge-section-head { display: flex; align-items: end; justify-content: space-between; gap: 48px; margin-bottom: 42px; }
.knowledge-section-head > div { max-width: 780px; }
.knowledge-section-head h2, .knowledge-method-copy h2, .whitepaper-section-head h2 { margin: 15px 0 0; color: var(--kh-ink); font-size: clamp(38px,5.2vw,68px); font-weight: 510; letter-spacing: -.058em; line-height: 1.01; }
.knowledge-section-head > p, .whitepaper-section-head > p, .knowledge-method-copy > p { max-width: 620px; margin: 16px 0 0; color: var(--kh-muted); font-size: 17px; line-height: 1.65; }
.knowledge-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 30px; }
.knowledge-filter { min-height: 42px; padding: 0 15px; border: 1px solid var(--kh-line); border-radius: 999px; color: var(--kh-muted); background: rgba(255,255,255,.78); font-size: 13px; font-weight: 650; cursor: pointer; transition: color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease; }
.knowledge-filter:hover { border-color: rgba(18,22,29,.18); color: var(--kh-ink); transform: translateY(-1px); }
.knowledge-filter[aria-pressed="true"] { border-color: var(--kh-ink); color: #fff; background: var(--kh-ink); }

.knowledge-grid, .whitepaper-related-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.knowledge-card { display: flex; min-width: 0; overflow: hidden; flex-direction: column; border: 1px solid var(--kh-line); border-radius: 28px; background: rgba(255,255,255,.93); box-shadow: 0 10px 32px rgba(42,50,63,.035); transition: transform .24s ease,box-shadow .24s ease,border-color .24s ease; }
.knowledge-card:hover { border-color: rgba(18,22,29,.16); box-shadow: 0 24px 60px rgba(42,50,63,.09); transform: translateY(-5px); }
.knowledge-card[hidden] { display: none; }
.knowledge-card-cover { position: relative; display: grid; min-height: 370px; padding: 34px 28px 0; place-items: end center; overflow: hidden; text-decoration: none; }
.knowledge-accent--mint .knowledge-card-cover { background: linear-gradient(145deg,#f1fbf8,#eaf8f5 55%,#f8fcfc); }
.knowledge-accent--blue .knowledge-card-cover { background: linear-gradient(145deg,#f5f7ff,#eff2ff 55%,#fbfcff); }
.knowledge-accent--violet .knowledge-card-cover { background: linear-gradient(145deg,#faf9ff,#f3f0ff 55%,#fbfaff); }
.knowledge-accent--coral .knowledge-card-cover { background: linear-gradient(145deg,#fff8f6,#fff1ee 55%,#fffafa); }
.knowledge-card-cover img { width: auto; max-width: 84%; height: 320px; object-fit: contain; object-position: center bottom; border: 1px solid rgba(18,22,29,.08); border-radius: 8px 8px 0 0; background: #fff; box-shadow: 0 18px 40px rgba(42,50,63,.15); transition: transform .28s ease; }
.knowledge-card:hover .knowledge-card-cover img { transform: translateY(-4px); }
.knowledge-card-issue { position: absolute; top: 18px; left: 20px; z-index: 1; padding: 7px 10px; border: 1px solid rgba(255,255,255,.85); border-radius: 999px; color: #4d535c; background: rgba(255,255,255,.82); box-shadow: 0 8px 24px rgba(42,50,63,.07); font-size: 10px; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; backdrop-filter: blur(12px); }
.knowledge-card-body { display: flex; flex: 1; padding: 26px 27px 28px; flex-direction: column; }
.knowledge-card-meta { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 15px; color: var(--kh-muted); font-size: 11px; font-weight: 720; letter-spacing: .055em; text-transform: uppercase; }
.knowledge-card h3 { margin: 0; font-size: clamp(24px,2.2vw,31px); font-weight: 570; letter-spacing: -.042em; line-height: 1.08; }
.knowledge-card h3 a { text-decoration: none; }
.knowledge-card-body > p { margin: 15px 0 24px; color: var(--kh-muted); font-size: 14px; line-height: 1.62; }
.knowledge-text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: auto; color: var(--kh-ink); font-size: 13px; font-weight: 700; text-decoration: none; }
.knowledge-text-link svg { width: 17px; height: 17px; transition: transform .18s ease; }
.knowledge-text-link:hover svg { transform: translateX(4px); }

.knowledge-method-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(420px,.9fr); align-items: center; gap: clamp(48px,8vw,100px); }
.knowledge-method-points { display: grid; gap: 12px; margin-top: 28px; }
.knowledge-method-point { display: grid; grid-template-columns: 42px minmax(0,1fr); gap: 15px; padding: 18px; border: 1px solid var(--kh-line); border-radius: 18px; background: rgba(255,255,255,.74); }
.knowledge-method-point > span { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 13px; color: #066e5d; background: var(--kh-mint-soft); }
.knowledge-method-point svg { width: 20px; height: 20px; }
.knowledge-method-point strong { display: block; margin-bottom: 3px; font-size: 15px; }
.knowledge-method-point p { margin: 0; color: var(--kh-muted); font-size: 13px; line-height: 1.5; }
.knowledge-method-visual { margin: 0; padding: 12px; border: 1px solid var(--kh-line); border-radius: 30px; background: #fff; box-shadow: var(--kh-shadow); }
.knowledge-method-visual img { width: 100%; height: auto; border-radius: 21px; object-fit: contain; }
.knowledge-cta { padding: 0 0 clamp(88px,10vw,132px); }
.knowledge-cta-inner { position: relative; display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 40px; overflow: hidden; padding: clamp(34px,5vw,58px); border: 1px solid rgba(122,97,237,.13); border-radius: 32px; background: linear-gradient(135deg,#fff,#f3f0ff 58%,#eff2ff); }
.knowledge-cta-inner::after { position: absolute; right: -80px; bottom: -110px; width: 310px; height: 310px; border-radius: 50%; background: radial-gradient(circle,rgba(8,168,141,.18),transparent 68%); content: ""; }
.knowledge-cta h2 { max-width: 760px; margin: 0; font-size: clamp(34px,4.6vw,58px); font-weight: 510; letter-spacing: -.055em; line-height: 1.03; }
.knowledge-cta p { max-width: 700px; margin: 15px 0 0; color: var(--kh-muted); line-height: 1.6; }
.knowledge-cta .apv2-button { position: relative; z-index: 1; white-space: nowrap; }

/* Detail pages */
.whitepaper-detail-hero { padding: clamp(122px,12vw,154px) 0 78px; }
.whitepaper-breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; margin-bottom: 30px; color: var(--kh-muted); font-size: 12px; }
.whitepaper-breadcrumb a { text-decoration: none; }
.whitepaper-breadcrumb a:hover { color: var(--kh-ink); }
.whitepaper-detail-grid { display: grid; grid-template-columns: minmax(0,1.32fr) minmax(350px,.68fr); align-items: start; gap: clamp(42px,6vw,78px); }
.whitepaper-detail-copy h1 { max-width: 890px; font-size: clamp(48px,6.3vw,82px); }
.whitepaper-detail-meta { display: flex; flex-wrap: wrap; gap: 9px; margin: 0 0 25px; }
.whitepaper-detail-meta span { padding: 7px 11px; border: 1px solid var(--kh-line); border-radius: 999px; color: var(--kh-muted); background: rgba(255,255,255,.75); font-size: 11px; font-weight: 700; letter-spacing: .045em; text-transform: uppercase; }
.whitepaper-detail-promise { margin: 25px 0 0; padding: 23px 25px; border: 1px solid rgba(8,168,141,.15); border-radius: 20px; color: #235e54; background: var(--kh-mint-soft); font-size: 15px; line-height: 1.62; }
.whitepaper-detail-promise strong { color: #075f50; }
.whitepaper-preview-stage { display: grid; grid-template-columns: minmax(0,.72fr) minmax(0,1fr); align-items: stretch; gap: 18px; margin-top: 36px; }
.whitepaper-cover-preview, .whitepaper-scene-preview { display: grid; min-width: 0; min-height: 350px; margin: 0; padding: 18px; place-items: center; overflow: hidden; border: 1px solid var(--kh-line); border-radius: 27px; background: #fff; }
.whitepaper-cover-preview { background: linear-gradient(145deg,#f8fafb,#eef3f5); }
.whitepaper-cover-preview img { width: auto; max-width: 100%; height: 420px; object-fit: contain; border: 1px solid rgba(18,22,29,.08); border-radius: 7px; background: #fff; box-shadow: 0 20px 48px rgba(42,50,63,.15); }
.whitepaper-scene-preview { padding: 10px; }
.whitepaper-scene-preview img { width: 100%; height: 100%; min-height: 330px; border-radius: 19px; object-fit: contain; background: #fff; }
.whitepaper-form-panel { position: sticky; top: calc(var(--apv2-header-height) + 24px); }

.whitepaper-form { position: relative; overflow: hidden; padding: 30px; border: 1px solid var(--kh-line); border-radius: 28px; background: rgba(255,255,255,.95); box-shadow: var(--kh-shadow); }
.whitepaper-form::before { position: absolute; inset: 0 0 auto; height: 5px; background: linear-gradient(90deg,var(--kh-mint),var(--kh-blue),var(--kh-violet)); content: ""; }
.whitepaper-form-heading h2 { margin: 10px 0 9px; font-size: 28px; font-weight: 570; letter-spacing: -.043em; line-height: 1.1; }
.whitepaper-form-heading > p:last-child { margin: 0 0 23px; color: var(--kh-muted); font-size: 13px; line-height: 1.55; }
.whitepaper-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.whitepaper-field { display: grid; min-width: 0; gap: 7px; color: var(--kh-ink); font-size: 12px; font-weight: 680; }
.whitepaper-field.is-wide { grid-column: 1/-1; }
.whitepaper-field > span { display: flex; justify-content: space-between; gap: 8px; }
.whitepaper-field > span small { color: var(--kh-muted); font-size: 10px; font-weight: 560; }
.whitepaper-field input { width: 100%; min-height: 48px; padding: 0 13px; border: 1px solid rgba(18,22,29,.13); border-radius: 13px; color: var(--kh-ink); background: #fff; outline: none; transition: border-color .18s ease,box-shadow .18s ease; }
.whitepaper-field input:focus { border-color: rgba(56,103,243,.55); box-shadow: 0 0 0 4px rgba(56,103,243,.1); }
.whitepaper-field input[aria-invalid="true"] { border-color: rgba(237,117,95,.72); }
.whitepaper-field-error { min-height: 0; color: #b74431; font-size: 11px; font-weight: 580; line-height: 1.35; }
.whitepaper-field-error:empty { display: none; }
.whitepaper-field-error.is-checkbox { display: block; margin: -8px 0 10px 28px; }
.whitepaper-field-error.is-checkbox:empty { display: none; }
.whitepaper-honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.whitepaper-check { display: grid; grid-template-columns: 18px minmax(0,1fr); align-items: start; gap: 10px; margin-top: 16px; color: #4e545c; font-size: 11px; font-weight: 520; line-height: 1.5; }
.whitepaper-check.is-optional { margin-top: 11px; }
.whitepaper-check input { width: 17px; height: 17px; margin: 1px 0 0; accent-color: var(--kh-mint-strong); }
.whitepaper-check a { color: var(--kh-ink); font-weight: 650; }
.whitepaper-check strong { color: #075f50; font-size: 10px; font-weight: 720; text-transform: uppercase; }
.whitepaper-submit { display: flex; width: 100%; min-height: 52px; align-items: center; justify-content: center; gap: 9px; margin-top: 20px; padding: 0 17px; border: 0; border-radius: 14px; color: #fff; background: var(--kh-ink); font-size: 13px; font-weight: 720; cursor: pointer; transition: transform .18s ease,box-shadow .18s ease,opacity .18s ease; }
.whitepaper-submit:hover { box-shadow: 0 12px 28px rgba(18,22,29,.16); transform: translateY(-1px); }
.whitepaper-submit:disabled { cursor: wait; opacity: .65; transform: none; }
.whitepaper-submit svg { width: 17px; height: 17px; }
.whitepaper-form-note { display: flex; align-items: flex-start; gap: 8px; margin: 14px 0 0; color: var(--kh-muted); font-size: 10.5px; line-height: 1.45; }
.whitepaper-form-note svg { flex: 0 0 15px; width: 15px; height: 15px; margin-top: 1px; color: var(--kh-mint-strong); }
.whitepaper-form-status { display: none; margin-top: 16px; padding: 13px 14px; border-radius: 13px; font-size: 12px; font-weight: 590; line-height: 1.45; }
.whitepaper-form-status.is-visible { display: block; }
.whitepaper-form-status.is-success { color: #075f50; background: var(--kh-mint-soft); }
.whitepaper-form-status.is-error { color: #963723; background: var(--kh-coral-soft); }

.whitepaper-stat-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; margin-top: 38px; }
.whitepaper-stat { min-width: 0; padding: 27px 28px 25px; border: 1px solid var(--kh-line); border-radius: 23px; background: #fff; }
.whitepaper-stat strong { display: block; margin-bottom: 12px; color: var(--kh-mint-strong); font-size: clamp(38px,4.5vw,58px); font-weight: 510; letter-spacing: -.055em; line-height: 1; }
.whitepaper-stat:nth-child(2) strong { color: var(--kh-blue); }
.whitepaper-stat:nth-child(3) strong { color: var(--kh-violet); }
.whitepaper-stat p { margin: 0; color: #34383f; font-size: 14px; line-height: 1.55; }
.whitepaper-stat small { display: block; margin-top: 13px; color: var(--kh-muted); font-size: 10px; line-height: 1.4; }
.whitepaper-section-head { max-width: 850px; margin-bottom: 38px; }
.whitepaper-outcomes { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; margin: 0; padding: 0; list-style: none; }
.whitepaper-outcomes li { display: grid; grid-template-columns: 44px minmax(0,1fr); align-items: center; gap: 16px; min-height: 112px; padding: 22px 23px; border: 1px solid var(--kh-line); border-radius: 21px; background: #fff; font-size: 15px; font-weight: 600; line-height: 1.45; }
.whitepaper-outcomes li > span { display: grid; width: 44px; height: 44px; place-items: center; border-radius: 14px; color: #075f50; background: var(--kh-mint-soft); }
.whitepaper-outcomes svg { width: 21px; height: 21px; }
.whitepaper-chapters { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 34px; margin: 0; padding: 0; counter-reset: chapter; list-style: none; }
.whitepaper-chapters li { display: grid; grid-template-columns: 46px minmax(0,1fr); align-items: start; gap: 14px; min-height: 83px; padding: 19px 0; border-bottom: 1px solid var(--kh-line); color: #34383f; font-size: 15px; font-weight: 590; line-height: 1.45; counter-increment: chapter; }
.whitepaper-chapters li::before { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 12px; color: var(--kh-violet); background: var(--kh-violet-soft); content: counter(chapter,decimal-leading-zero); font-size: 11px; font-weight: 760; }

.whitepaper-inside-layout { display: grid; grid-template-columns: minmax(360px,.8fr) minmax(0,1.2fr); align-items: center; gap: clamp(44px,7vw,90px); }
.whitepaper-inside-preview { display: grid; min-height: 590px; margin: 0; padding: 28px; place-items: center; border: 1px solid var(--kh-line); border-radius: 28px; background: linear-gradient(145deg,#eef2f3,#f8fafb); }
.whitepaper-inside-preview img { width: auto; max-width: 100%; height: 530px; object-fit: contain; border: 1px solid rgba(18,22,29,.08); border-radius: 7px; background: #fff; box-shadow: 0 20px 48px rgba(42,50,63,.14); }
.whitepaper-source-list { display: grid; gap: 12px; margin-top: 27px; }
.whitepaper-source { display: grid; grid-template-columns: minmax(0,1fr) 22px; align-items: center; gap: 18px; padding: 18px 19px; border: 1px solid var(--kh-line); border-radius: 17px; background: rgba(255,255,255,.78); text-decoration: none; transition: border-color .18s ease,background-color .18s ease,transform .18s ease; }
.whitepaper-source:hover { border-color: rgba(18,22,29,.18); background: #fff; transform: translateY(-1px); }
.whitepaper-source small { display: block; margin-bottom: 4px; color: var(--kh-mint-strong); font-size: 10px; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; }
.whitepaper-source strong { display: block; font-size: 14px; font-weight: 630; line-height: 1.4; }
.whitepaper-source svg { width: 20px; height: 20px; color: var(--kh-muted); }
.whitepaper-method-note { margin-top: 20px; padding: 18px 20px; border: 1px solid rgba(56,103,243,.12); border-radius: 17px; color: #455174; background: var(--kh-blue-soft); font-size: 12px; line-height: 1.6; }
.whitepaper-product-bridge { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 34px; padding: clamp(32px,5vw,54px); border: 1px solid rgba(8,168,141,.13); border-radius: 30px; background: linear-gradient(135deg,#fff,var(--kh-mint-soft)); }
.whitepaper-product-bridge h2 { max-width: 790px; margin: 0; font-size: clamp(34px,4.4vw,54px); font-weight: 510; letter-spacing: -.052em; line-height: 1.04; }
.whitepaper-product-bridge p { max-width: 710px; margin: 13px 0 0; color: var(--kh-muted); line-height: 1.6; }
.whitepaper-product-bridge .apv2-button { white-space: nowrap; }

@media (max-width:1080px) {
    .knowledge-hero-grid { grid-template-columns: minmax(0,1fr) minmax(400px,.92fr); gap: 42px; }
    .knowledge-grid, .whitepaper-related-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .whitepaper-detail-grid { grid-template-columns: minmax(0,1fr) minmax(330px,.7fr); gap: 42px; }
    .whitepaper-cover-preview img { height: 360px; }
}
@media (max-width:900px) {
    .knowledge-hero-grid, .knowledge-method-grid, .whitepaper-detail-grid, .whitepaper-inside-layout { grid-template-columns: 1fr; }
    .knowledge-hero-visual { max-width: 720px; }
    .knowledge-trust-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .knowledge-trust-item:nth-child(3) { border-left: 0; border-top: 1px solid var(--kh-line); }
    .knowledge-trust-item:nth-child(4) { border-top: 1px solid var(--kh-line); }
    .whitepaper-form-panel { position: static; }
    .whitepaper-form { max-width: 700px; }
    .whitepaper-inside-preview { min-height: 0; }
    .knowledge-method-visual { max-width: 700px; order: -1; }
}
@media (max-width:700px) {
    .knowledge-shell { width: calc(100% - 32px); }
    .knowledge-hero { padding: 112px 0 78px; }
    .knowledge-hero-grid { gap: 34px; }
    .knowledge-hero h1, .whitepaper-detail-copy h1 { margin-top: 16px; font-size: clamp(44px,13.8vw,66px); letter-spacing: -.062em; }
    .knowledge-hero-lead, .whitepaper-detail-subtitle { font-size: 18px; }
    .knowledge-hero-actions { display: grid; grid-template-columns: 1fr; }
    .knowledge-hero-actions .apv2-button { width: 100%; }
    .knowledge-hero-visual { padding: 8px; border-radius: 24px; }
    .knowledge-hero-visual img { border-radius: 17px; }
    .knowledge-trust-strip { margin-top: -22px; padding-bottom: 60px; }
    .knowledge-trust-item { padding: 19px 18px 20px; }
    .knowledge-trust-item strong { font-size: 19px; }
    .knowledge-section { padding: 72px 0; }
    .knowledge-section-head { align-items: start; flex-direction: column; gap: 16px; margin-bottom: 30px; }
    .knowledge-section-head h2, .knowledge-method-copy h2, .whitepaper-section-head h2 { font-size: clamp(35px,10.5vw,48px); }
    .knowledge-grid, .whitepaper-related-grid, .whitepaper-stat-grid, .whitepaper-outcomes, .whitepaper-chapters { grid-template-columns: 1fr; }
    .knowledge-card-cover { min-height: 340px; }
    .knowledge-card-cover img { height: 292px; }
    .knowledge-method-grid { gap: 38px; }
    .knowledge-cta-inner, .whitepaper-product-bridge { grid-template-columns: 1fr; gap: 25px; padding: 30px 24px; }
    .knowledge-cta .apv2-button, .whitepaper-product-bridge .apv2-button { width: 100%; }
    .whitepaper-detail-hero { padding: 108px 0 62px; }
    .whitepaper-detail-grid { gap: 34px; }
    .whitepaper-preview-stage { grid-template-columns: 1fr; }
    .whitepaper-cover-preview, .whitepaper-scene-preview { min-height: 0; }
    .whitepaper-cover-preview img { height: auto; max-height: 510px; }
    .whitepaper-scene-preview img { min-height: 0; height: auto; }
    .whitepaper-form { padding: 27px 22px; border-radius: 23px; }
    .whitepaper-form-grid { grid-template-columns: 1fr; }
    .whitepaper-field.is-wide { grid-column: auto; }
    .whitepaper-stat { padding: 24px; }
    .whitepaper-stat strong { font-size: 48px; }
    .whitepaper-outcomes li { min-height: 0; }
    .whitepaper-inside-preview { min-height: 0; padding: 18px; }
    .whitepaper-inside-preview img { width: 100%; height: auto; max-height: none; }
}
@media (max-width:430px) {
    .knowledge-trust-grid { grid-template-columns: 1fr; }
    .knowledge-trust-item + .knowledge-trust-item, .knowledge-trust-item:nth-child(3), .knowledge-trust-item:nth-child(4) { border-top: 1px solid var(--kh-line); border-left: 0; }
    .knowledge-card-body { padding: 23px 21px 25px; }
    .knowledge-card-cover { min-height: 310px; padding-inline: 20px; }
    .knowledge-card-cover img { height: 265px; }
    .whitepaper-form-heading h2 { font-size: 25px; }
}
@media (prefers-reduced-motion:reduce) { .knowledge-card,.knowledge-card-cover img,.knowledge-filter,.whitepaper-submit,.whitepaper-source { transition: none; } }