/* 兰塞 AI editorial templates v2 */
.ai-v2-shell{max-width:1380px;margin:0 auto;padding:28px 18px 48px;color:var(--ai-text)}
.ai-v2-shell *{box-sizing:border-box}.ai-v2-shell a{text-decoration:none}.ai-v2-masthead{border-bottom:1px solid var(--ai-border);padding:24px 4px 28px;margin-bottom:22px}.ai-v2-eyebrow{color:var(--ai-teal);font-size:13px;font-weight:700;letter-spacing:.1em}.ai-v2-masthead h1{font-size:clamp(32px,4vw,52px);line-height:1.15;letter-spacing:-.04em;margin:10px 0 14px;max-width:980px}.ai-v2-masthead>p{color:#334250;font-size:16px;line-height:1.9;max-width:860px;margin:0}.ai-v2-masthead__meta{display:flex;flex-wrap:wrap;gap:8px 22px;color:var(--ai-muted);font-size:12px;margin-top:18px}.ai-v2-masthead__meta span:before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--ai-teal);margin-right:8px;vertical-align:1px}
.ai-v2-signature{display:grid;gap:12px;margin:0 0 24px}.ai-v2-signature a{background:#fff;border:1px solid var(--ai-border);border-radius:10px;color:var(--ai-text);display:flex;flex-direction:column;min-height:148px;padding:18px;transition:border-color .18s,transform .18s}.ai-v2-signature a:hover{border-color:#87aebb;transform:translateY(-2px)}.ai-v2-signature small{color:var(--ai-teal);font-size:12px;font-weight:700;margin-bottom:12px}.ai-v2-signature strong{font-size:16px;line-height:1.55}.ai-v2-signature span{color:var(--ai-link);font-size:12px;font-weight:700;margin-top:auto;padding-top:15px}.ai-v2-signature--directory{grid-template-columns:repeat(5,1fr)}.ai-v2-signature--learning,.ai-v2-signature--reference,.ai-v2-signature--timeline,.ai-v2-signature--industry{grid-template-columns:repeat(3,1fr)}.ai-v2-signature--workflow,.ai-v2-signature--glossary,.ai-v2-signature--qa,.ai-v2-signature--resource{grid-template-columns:repeat(4,1fr)}
.ai-v2-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}.ai-v2-main{min-width:0}.ai-v2-sidebar{background:#fff;border:1px solid var(--ai-border);border-radius:10px;padding:18px;position:sticky;top:94px}.ai-v2-sidebar h2{font-size:17px;margin:0 0 10px}.ai-v2-sidebar p,.ai-v2-sidebar li{color:var(--ai-muted);font-size:13px;line-height:1.75}.ai-v2-sidebar ul{padding-left:18px;margin:0}.ai-v2-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.ai-v2-card{background:#fff;border:1px solid var(--ai-border);border-radius:10px;display:flex;overflow:hidden;min-width:0}.ai-v2-card__media{flex:0 0 38%;background:var(--ai-brand-soft)}.ai-v2-card__media img{display:block;width:100%;height:100%;min-height:190px;object-fit:cover}.ai-v2-card__body{display:flex;flex:1;flex-direction:column;padding:17px;min-width:0}.ai-v2-card__meta{display:flex;gap:10px;justify-content:space-between;color:var(--ai-muted);font-size:11px}.ai-v2-card__meta span{color:var(--ai-teal);font-weight:700}.ai-v2-card h2{font-size:18px;line-height:1.45;margin:10px 0 7px}.ai-v2-card h2 a{color:var(--ai-text)}.ai-v2-card p{color:var(--ai-muted);font-size:13px;line-height:1.75;margin:0 0 12px}.ai-v2-card__link{font-size:12px;font-weight:700;margin-top:auto}.ai-v2-pagination{margin-top:28px}.ai-v2-pagination ul{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0}.ai-v2-pagination a,.ai-v2-pagination span{background:#fff;border:1px solid var(--ai-border);border-radius:6px;display:flex;min-width:38px;min-height:38px;align-items:center;justify-content:center;padding:0 10px}.ai-v2-pagination .current{background:var(--ai-brand-600);color:#fff}
.ai-v2-article{display:grid;grid-template-columns:minmax(0,860px) 280px;gap:34px;justify-content:center}.ai-v2-article__main{background:#fff;border:1px solid var(--ai-border);border-radius:10px;overflow:hidden}.ai-v2-article__header{padding:30px 36px 24px}.ai-v2-article__header h1{font-size:clamp(30px,4vw,46px);line-height:1.25;letter-spacing:-.03em;margin:10px 0 15px}.ai-v2-article__summary{color:#334250;font-size:17px;line-height:1.85}.ai-v2-article__meta{display:flex;flex-wrap:wrap;gap:8px 18px;color:var(--ai-muted);font-size:12px}.ai-v2-article__content{padding:12px 36px 38px;font-size:16px;line-height:1.9}.ai-v2-article__content h2{font-size:26px;line-height:1.4;margin:38px 0 14px}.ai-v2-article__content h3{font-size:20px;margin:28px 0 10px}.ai-v2-article__content img{height:auto;max-width:100%}.ai-v2-article__content table{border-collapse:collapse;display:block;max-width:100%;overflow:auto}.ai-v2-article__content th,.ai-v2-article__content td{border:1px solid var(--ai-border);padding:10px 12px}.ai-v2-article__content pre{max-width:100%;overflow:auto;border-radius:8px}.ai-v2-article__rail{min-width:0}.ai-v2-rail-card{background:#fff;border:1px solid var(--ai-border);border-radius:10px;margin-bottom:14px;padding:18px}.ai-v2-rail-card h2{font-size:16px;margin:0 0 10px}.ai-v2-rail-card p,.ai-v2-rail-card li{color:var(--ai-muted);font-size:12px;line-height:1.7}.ai-v2-rail-card ul{margin:0;padding-left:18px}
.ai-v2-page{background:#fff;border:1px solid var(--ai-border);border-radius:10px;margin:0 auto;max-width:980px;padding:34px 42px}.ai-v2-page__content{font-size:16px;line-height:1.9}.ai-v2-page__content h2{font-size:25px;margin-top:36px}.ai-v2-empty{background:#fff;border:1px dashed #aebdc5;border-radius:10px;padding:32px;text-align:center}.ai-v2-empty h2{font-size:21px;margin-top:0}.ai-v2-empty p{color:var(--ai-muted)}
@media(max-width:1100px){.ai-v2-layout{grid-template-columns:1fr}.ai-v2-sidebar{position:static}.ai-v2-signature--directory{grid-template-columns:repeat(3,1fr)}.ai-v2-article{grid-template-columns:minmax(0,1fr);max-width:900px;margin:auto}.ai-v2-article__rail{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.ai-v2-rail-card{margin:0}}
@media(max-width:767px){.ai-v2-shell{padding:16px 12px 32px;overflow:hidden}.ai-v2-masthead{padding:16px 4px 22px}.ai-v2-masthead h1{font-size:30px;overflow-wrap:anywhere}.ai-v2-masthead>p{font-size:15px;line-height:1.75}.ai-v2-signature,.ai-v2-signature--directory,.ai-v2-signature--learning,.ai-v2-signature--reference,.ai-v2-signature--timeline,.ai-v2-signature--industry,.ai-v2-signature--workflow,.ai-v2-signature--glossary,.ai-v2-signature--qa,.ai-v2-signature--resource{display:flex;gap:10px;overflow:auto;padding-bottom:5px;scroll-snap-type:x mandatory}.ai-v2-signature a{flex:0 0 78%;min-height:130px;scroll-snap-align:start}.ai-v2-grid{grid-template-columns:1fr}.ai-v2-card{display:grid;grid-template-columns:112px minmax(0,1fr)}.ai-v2-card__media{width:112px}.ai-v2-card__media img{aspect-ratio:16/9;min-height:0;height:100%;object-fit:cover}.ai-v2-card__body{padding:13px}.ai-v2-card p{display:none}.ai-v2-card h2{font-size:15px;margin:8px 0}.ai-v2-card__meta{display:block}.ai-v2-card__meta time{display:block;margin-top:3px}.ai-v2-article__main{border-left:0;border-radius:0;border-right:0}.ai-v2-article__header{padding:22px 18px}.ai-v2-article__header h1{font-size:30px}.ai-v2-article__summary{font-size:15px}.ai-v2-article__content{padding:8px 18px 30px;font-size:16px;overflow-wrap:anywhere}.ai-v2-article__content h2{font-size:23px}.ai-v2-article__rail{display:block}.ai-v2-rail-card{margin-bottom:12px}.ai-v2-page{border-left:0;border-radius:0;border-right:0;padding:24px 18px}.ai-v2-page__content{overflow-wrap:anywhere}}
.ai-v2-article__lead{background:var(--ai-brand-soft);margin:0;overflow:hidden}.ai-v2-article__lead img{display:block;height:auto;width:100%}.ai-v2-article__content a{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}

/* Keep archive thumbnails at the editorial 16:9 ratio on every viewport. */
@media(min-width:768px){.ai-v2-card{flex-direction:column}.ai-v2-card__media{aspect-ratio:16/9;display:block;flex:none;width:100%}.ai-v2-card__media img{aspect-ratio:16/9;height:auto;min-height:0;width:100%}}
@media(max-width:767px){.ai-v2-card__media{align-self:start;aspect-ratio:16/9}.ai-v2-card__media img{height:auto}}

/* Human-readable trust footer shared by the legacy and v2 templates. */
.ai-trust-footer{border-top:1px solid rgba(255,255,255,.16);color:#d5e2e7;padding:28px 0 30px}.ai-trust-footer__nav{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:center;margin-bottom:16px}.ai-trust-footer__nav a{color:#fff;font-size:14px;font-weight:600}.ai-trust-footer__nav a:hover{text-decoration:underline}.ai-trust-footer__note{color:#b8ccd4;font-size:13px;line-height:1.75;margin:0 auto 14px;max-width:900px;text-align:center}.ai-trust-footer .copyright{color:#a9bec7;font-size:12px;line-height:1.75;margin:0;text-align:center}.ai-trust-footer .copyright a{color:#d5e2e7}.ai-trust-footer .friendlink{color:#b8ccd4;margin:0 auto 18px;max-width:900px;padding:0;text-align:center}.ai-trust-footer .friendlink a{color:#d5e2e7;margin-left:10px}
@media(max-width:767px){.ai-trust-footer{padding:24px 16px}.ai-trust-footer__nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 18px;justify-items:start}.ai-trust-footer__note,.ai-trust-footer .copyright{text-align:left}}
.ai-v2-rail-card li{margin-bottom:6px}.ai-v2-rail-card li a{display:inline-block;line-height:1.7;min-height:24px}