:root{--at-blue:#1769e8;--at-deep:#10264e;--at-text:#29364a;--at-muted:#627087;--at-line:#dce4ef;--at-soft:#f5f8fc}
.at-page{font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--at-text);background:#fff}.at-page *{box-sizing:border-box}.at-wrap{width:min(1180px,calc(100% - 40px));margin:0 auto}.at-hero{padding:92px 0 76px;background:linear-gradient(180deg,#eef5ff 0,#fff 88%)}.at-hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(340px,.75fr);gap:70px;align-items:center}.at-eyebrow,.at-heading>p{color:var(--at-blue);font-size:14px;font-weight:700;letter-spacing:1px;margin:0 0 12px}.at-hero h1{font-size:50px;line-height:1.2;color:var(--at-deep);margin:0 0 14px}.at-hero h2{font-size:27px;line-height:1.55;color:#274a78;margin:0 0 20px}.at-hero-copy{font-size:17px;line-height:1.9;color:#536177;margin:0}.at-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.at-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 23px;border:1px solid #a9bfdc;color:#25568f!important;text-decoration:none!important;border-radius:4px;background:#fff;font-weight:700}.at-btn.primary{background:var(--at-blue);border-color:var(--at-blue);color:#fff!important}.at-connect-map{border:1px solid #cddcef;background:#fff;padding:30px;border-radius:10px;text-align:center;box-shadow:0 18px 45px rgba(35,78,135,.1)}.at-map-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.at-map-row span{padding:12px 5px;background:#f3f7fc;border:1px solid #e0e8f2;border-radius:4px;font-size:14px}.at-connect-map>strong{display:block;background:var(--at-blue);color:#fff;padding:18px;border-radius:5px;font-size:25px}.at-connect-map>small{display:block;color:#5d6d83;margin-top:8px}.at-map-arrow{color:#66809f;padding:11px;font-size:13px}.at-section{padding:82px 0}.at-section.muted{background:var(--at-soft)}.at-heading{text-align:center;max-width:850px;margin:0 auto 42px}.at-heading h2{font-size:36px;line-height:1.35;color:var(--at-deep);margin:0 0 14px}.at-heading h3{font-size:17px;line-height:1.8;font-weight:400;color:var(--at-muted);margin:0}.at-grid{display:grid;gap:20px}.at-grid.three{grid-template-columns:repeat(3,1fr)}.at-grid.four{grid-template-columns:repeat(4,1fr)}.at-use-card{border:1px solid var(--at-line);padding:28px;background:#fff}.at-use-card i{font-style:normal;color:var(--at-blue);font-weight:800}.at-use-card h3{font-size:23px;color:var(--at-deep);margin:12px 0}.at-use-card>strong,.at-cap-grid article>strong{display:block;line-height:1.65;color:#314a6b}.at-use-card p,.at-cap-grid p,.at-roles p,.at-models p{line-height:1.75;color:var(--at-muted)}.at-use-card ul{padding-left:20px;display:grid;grid-template-columns:1fr 1fr;gap:5px 14px;color:#52647c}.at-cap-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}.at-cap-grid article{grid-column:span 2;background:#fff;border:1px solid var(--at-line);padding:27px}.at-cap-grid article:nth-child(1),.at-cap-grid article:nth-child(2){grid-column:span 3}.at-cap-grid article>span{color:var(--at-blue);font-weight:800}.at-cap-grid h3{color:var(--at-deep);font-size:22px;margin:11px 0}.at-cap-grid small{display:block;border-top:1px solid var(--at-line);padding-top:14px;color:#55708f}.at-statement,.at-note{max-width:940px;margin:30px auto 0;padding:18px 22px;border-left:4px solid var(--at-blue);background:#edf4ff;line-height:1.75;font-size:16px}.at-flow{display:flex;align-items:stretch;gap:8px}.at-flow div{flex:1;min-width:0;border:1px solid var(--at-line);padding:20px 12px;text-align:center;background:#fff}.at-flow b{display:block;margin:0 auto 11px;width:28px;height:28px;line-height:28px;border-radius:50%;background:#eaf2ff;color:var(--at-blue)}.at-flow strong,.at-flow span{display:block}.at-flow strong{color:var(--at-deep);line-height:1.45}.at-flow span{font-size:13px;color:#718097;margin-top:8px;line-height:1.5}.at-flow em{font-style:normal;display:flex;align-items:center;color:#7891af}.at-duty-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}.at-duty-row div{padding:18px;background:#f6f8fb;border-top:3px solid #8da1b8}.at-duty-row div.active{border-color:var(--at-blue);background:#edf4ff}.at-duty-row b,.at-duty-row span{display:block}.at-duty-row span{font-size:14px;color:#65758a;margin-top:5px}.at-section.dark{background:#10264e;color:#fff}.dark .at-heading h2,.dark .at-heading>p{color:#fff}.dark .at-heading h3{color:#c8d5e8}.at-roles article{padding:27px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.05)}.at-roles article.active{background:#fff;color:var(--at-text)}.at-roles h3{font-size:22px;margin:0 0 14px}.at-roles article:not(.active) p{color:#c7d3e4}.at-dark-statement{text-align:center;font-size:20px;margin:35px 0 0;color:#fff}.at-models{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--at-line)}.at-models article{padding:26px;border-right:1px solid var(--at-line)}.at-models article:last-child{border:0}.at-models b{color:var(--at-blue)}.at-models h3{color:var(--at-deep);font-size:20px}.at-subtitle{font-size:25px;color:var(--at-deep);margin:0 0 18px}.at-subtitle.spaced{margin-top:58px}.at-subcopy{color:var(--at-muted);margin-top:-7px}.at-proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.at-proof-grid a{background:#fff;border:1px solid var(--at-line);padding:20px;text-decoration:none!important}.at-proof-grid b,.at-proof-grid span{display:block}.at-proof-grid b{color:#245997;font-size:18px}.at-proof-grid span{color:#69788e;line-height:1.6;margin-top:7px;font-size:14px}.at-apps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.at-apps article{background:#fff;border:1px solid var(--at-line);overflow:hidden}.at-apps img{width:100%;height:150px;object-fit:cover;object-position:top}.at-apps div{padding:17px}.at-apps b,.at-apps span{display:block}.at-apps b{color:var(--at-deep);font-size:18px}.at-apps span{font-size:14px;color:#68778b;line-height:1.6;margin-top:6px}.at-articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.at-article-card{display:block;background:#fff;border:1px solid var(--at-line);padding:22px;text-decoration:none!important}.at-article-card span{font-size:13px;color:var(--at-blue);font-weight:700}.at-article-card h3{font-size:17px;line-height:1.65;color:#243a59;margin:11px 0 16px}.at-article-card b{font-size:14px;color:#2365b7}.at-all{margin-top:22px;background:#fff;border:1px solid var(--at-line)}.at-all summary{cursor:pointer;padding:16px 20px;color:#245d9f;font-weight:700}.at-all ol{columns:2;margin:0;padding:0 35px 22px 55px}.at-all li{break-inside:avoid;padding:6px 0;line-height:1.6}.at-all a{color:#365b88;text-decoration:none}.at-final{padding:68px 0;text-align:center;background:#eaf2ff}.at-final h2{font-size:34px;color:var(--at-deep);margin:0 0 14px}.at-final p{max-width:880px;margin:auto;color:#53667e;line-height:1.8}.at-final .at-actions{justify-content:center}
.ai-article-page{font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--at-text);background:#fff}.ai-wrap{width:min(1180px,calc(100% - 40px));margin:0 auto}.ai-article-top{background:#f3f7fc;padding:48px 0;border-bottom:1px solid var(--at-line)}.ai-article-top a{color:#2766b1}.ai-article-top h1{font-size:38px;line-height:1.35;color:var(--at-deep);margin:16px 0 10px}.ai-article-top p{color:#5c6b80;line-height:1.8;max-width:900px}.ai-article-layout{display:grid;grid-template-columns:minmax(0,800px) 290px;gap:38px;padding:55px 0}.ai-prose{font-size:17px;line-height:1.9}.ai-prose h2{font-size:29px;color:var(--at-deep);margin:1.8em 0 .65em;border-bottom:1px solid var(--at-line);padding-bottom:8px}.ai-prose h3{font-size:22px;color:#244f83}.ai-prose blockquote{margin:1.5em 0;padding:17px 22px;background:#f3f7fc;border-left:4px solid var(--at-blue)}.ai-prose table{width:100%;border-collapse:collapse}.ai-prose th,.ai-prose td{border:1px solid var(--at-line);padding:11px}.ai-sidebar{position:sticky;top:90px;height:max-content}.ai-sidebar-box{border:1px solid var(--at-line);padding:20px;margin-bottom:16px}.ai-sidebar-box a{display:block;padding:6px 0;color:#2963a8;text-decoration:none;line-height:1.5}.ai-evidence-loop{margin:50px 0;padding:30px;background:#f3f7fc;border-left:4px solid var(--at-blue)}.ai-evidence-loop h2{font-size:24px;margin-top:0}.ai-evidence-loop a{color:#2766b1;font-weight:700}
@media(max-width:950px){.at-hero-grid{grid-template-columns:1fr}.at-grid.three,.at-grid.four,.at-models{grid-template-columns:1fr 1fr}.at-cap-grid{grid-template-columns:1fr 1fr}.at-cap-grid article,.at-cap-grid article:nth-child(1),.at-cap-grid article:nth-child(2){grid-column:auto}.at-flow{display:grid;grid-template-columns:1fr 1fr}.at-flow em{display:none}.at-proof-grid,.at-apps,.at-articles{grid-template-columns:1fr 1fr}.ai-article-layout{grid-template-columns:1fr}.ai-sidebar{position:static}}
@media(max-width:600px){.at-wrap,.ai-wrap{width:calc(100% - 28px)}.at-hero{padding:58px 0}.at-hero h1{font-size:36px}.at-hero h2{font-size:22px}.at-hero-copy{font-size:16px}.at-section{padding:58px 0}.at-heading h2{font-size:29px}.at-grid.three,.at-grid.four,.at-cap-grid,.at-models,.at-proof-grid,.at-apps,.at-articles,.at-duty-row,.at-flow{grid-template-columns:1fr}.at-models article{border-right:0;border-bottom:1px solid var(--at-line)}.at-all ol{columns:1;padding-left:42px}.at-apps img{height:auto}.ai-article-top h1{font-size:29px}.ai-prose{font-size:16px}}

/* GEO semantic anchors: complete paragraphs supporting the existing visual modules. */
.at-semantic{font-size:16px;line-height:1.9;color:#46566d}.at-semantic-box{max-width:1000px;margin:30px auto 0;padding:18px 22px;background:#f6f8fb;border-left:4px solid var(--at-blue)}.at-proof-anchor{max-width:980px;margin:-4px 0 22px}.dark .at-semantic{color:#e1e9f4}.at-dark-statement.at-semantic{max-width:990px;margin:34px auto 0;text-align:left;font-size:16px;line-height:1.9;padding:20px 24px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06)}
@media(max-width:600px){.at-semantic{font-size:15px}.at-semantic-box,.at-dark-statement.at-semantic{padding:16px 18px}}

/* Semantic visual rhythm refinement */
.at-cap-lead{max-width:1000px;margin:-6px auto 28px;padding:20px 24px;background:#fff;border-top:3px solid var(--at-blue);box-shadow:0 8px 24px rgba(40,75,120,.07);color:#34465f}.at-model-note{max-width:1040px;margin:28px auto 0;padding-top:22px;border-top:1px solid var(--at-line);color:#53647b}.at-proof-anchor{font-size:15px;line-height:1.8;color:#67768a}.at-hero-copy.at-semantic{padding:0;background:none;border:0}.at-note.at-semantic{font-size:16px}.at-subcopy{max-width:850px;line-height:1.75}
@media(max-width:600px){.at-cap-lead{padding:17px 18px;margin-top:0}.at-model-note{padding-top:18px}}

/* AI topic page visual polish — keep the original content and module order. */
.at-page{
  --at-blue:#176cf5;
  --at-cyan:#20b9e8;
  --at-deep:#102448;
  --at-text:#263650;
  --at-muted:#607088;
  --at-line:#dfe8f5;
  --at-soft:#f5f9ff;
  overflow:hidden;
  background:#fff;
}
.at-page .at-wrap{width:min(1200px,calc(100% - 48px))}
.at-page .at-hero{
  position:relative;
  isolation:isolate;
  padding:120px 0 80px;
  background:
    radial-gradient(circle at 82% 12%,rgba(32,185,232,.18),transparent 28%),
    radial-gradient(circle at 6% 88%,rgba(23,108,245,.12),transparent 31%),
    linear-gradient(135deg,#f2f7ff 0%,#fbfdff 55%,#eef9ff 100%);
}
.at-page .at-hero:before,.at-page .at-hero:after{content:"";position:absolute;z-index:-1;border-radius:50%;filter:blur(2px)}
.at-page .at-hero:before{width:360px;height:360px;right:-155px;top:-165px;border:1px solid rgba(23,108,245,.12);box-shadow:0 0 0 58px rgba(23,108,245,.025),0 0 0 116px rgba(32,185,232,.025)}
.at-page .at-hero:after{width:170px;height:170px;left:-88px;bottom:-92px;background:linear-gradient(135deg,rgba(23,108,245,.12),rgba(32,185,232,.02))}
.at-page .at-hero-grid{grid-template-columns:minmax(0,1.18fr) minmax(390px,.82fr);gap:72px}
.at-page .at-eyebrow,.at-page .at-heading>p{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 13px;
  border-radius:999px;
  background:#eaf2ff;
  color:var(--at-blue);
  font-size:13px;
  letter-spacing:.08em;
}
.at-page .at-eyebrow:before,.at-page .at-heading>p:before{content:"";width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,var(--at-blue),var(--at-cyan));box-shadow:0 0 0 4px rgba(23,108,245,.1)}
.at-page .at-hero h1{font-size:54px;line-height:1.16;letter-spacing:-1.8px;margin:17px 0 16px;color:var(--at-deep)}
.at-page .at-hero h2{max-width:720px;font-size:28px;line-height:1.5;font-weight:600;color:#2b568e;margin-bottom:22px}
.at-page .at-hero-copy{max-width:730px;font-size:17px;line-height:1.95;color:#52647e}
.at-page .at-actions{gap:14px;margin-top:32px}
.at-page .at-btn{min-height:50px;padding:0 27px;border-radius:10px;border-color:#c7d5e8;background:rgba(255,255,255,.78);box-shadow:0 7px 20px rgba(33,75,128,.06);transition:.22s ease}
.at-page .at-btn:hover{transform:translateY(-2px);border-color:#8eb3e8;box-shadow:0 12px 28px rgba(33,75,128,.12)}
.at-page .at-btn.primary{background:linear-gradient(135deg,#176cf5,#2388f4);box-shadow:0 12px 24px rgba(23,108,245,.22)}
.at-page .at-connect-map{
  position:relative;
  padding:34px;
  border:1px solid rgba(166,195,230,.55);
  border-radius:24px;
  background:rgba(255,255,255,.82);
  box-shadow:0 26px 70px rgba(38,83,143,.15);
  backdrop-filter:blur(10px);
}
.at-page .at-connect-map:before{content:"AI 连接中枢";display:inline-block;margin-bottom:18px;color:#7990ad;font-size:12px;letter-spacing:.12em}
.at-page .at-map-row{gap:10px}
.at-page .at-map-row span{padding:13px 6px;border:1px solid #e1eaf6;border-radius:10px;background:#f7faff;color:#40516a;font-weight:600}
.at-page .at-connect-map>strong{padding:20px;border-radius:12px;background:linear-gradient(135deg,#176cf5,#20a3ee);box-shadow:0 12px 26px rgba(23,108,245,.23);font-size:26px}
.at-page .at-connect-map>small{margin-top:10px;color:#657995}
.at-page .at-map-arrow{position:relative;padding:13px;color:#7188a5;font-size:12px}
.at-page .at-map-arrow:before,.at-page .at-map-arrow:after{content:"";display:inline-block;width:38px;height:1px;margin:0 10px 4px;background:#cbd9ea}

.at-page .at-section{padding:70px 0}
.at-page .at-section.muted{background:linear-gradient(180deg,#f6f9fe 0%,#f2f7fd 100%)}
.at-page .at-heading{max-width:900px;margin-bottom:48px}
.at-page .at-heading h2{font-size:39px;letter-spacing:-.7px;margin-top:17px;margin-bottom:15px}
.at-page .at-heading h3{font-size:17px;line-height:1.85}
.at-page .at-grid{gap:22px}
.at-page .at-use-card{
  position:relative;
  min-height:340px;
  padding:32px 30px 29px;
  border:1px solid #e2eaf5;
  border-radius:18px;
  background:linear-gradient(180deg,#fff 0%,#fbfdff 100%);
  box-shadow:0 12px 36px rgba(39,76,125,.07);
  overflow:hidden;
  transition:.25s ease;
}
.at-page .at-use-card:before{content:"";position:absolute;inset:0 0 auto;height:4px;background:linear-gradient(90deg,var(--at-blue),var(--at-cyan));opacity:.8}
.at-page .at-use-card:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(39,76,125,.12)}
.at-page .at-use-card i{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:12px;background:#eaf2ff;font-size:14px}
.at-page .at-use-card h3{font-size:24px;margin:18px 0 12px}
.at-page .at-use-card>strong{min-height:54px}
.at-page .at-use-card p{margin:15px 0 18px}
.at-page .at-use-card ul{margin:0;padding:15px 0 0;list-style:none;border-top:1px solid #e7edf6;gap:8px 15px}
.at-page .at-use-card li{position:relative;padding-left:14px}
.at-page .at-use-card li:before{content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;border-radius:50%;background:var(--at-blue)}
.at-page .at-semantic-box{max-width:1040px;margin-top:34px;padding:23px 27px;border:1px solid #deE8f6;border-left:4px solid var(--at-blue);border-radius:0 14px 14px 0;background:#f7faff;box-shadow:0 9px 26px rgba(39,76,125,.05)}

.at-page .at-cap-lead{max-width:1040px;margin:-8px auto 34px;padding:24px 28px;border:1px solid #e2eaf5;border-top:4px solid var(--at-blue);border-radius:14px;box-shadow:0 13px 34px rgba(40,75,120,.08)}
.at-page .at-cap-grid{gap:20px}
.at-page .at-cap-grid article{
  position:relative;
  min-height:250px;
  padding:31px 29px 27px;
  border:1px solid #e1e9f4;
  border-radius:17px;
  box-shadow:0 10px 30px rgba(39,76,125,.065);
  overflow:hidden;
  transition:.22s ease;
}
.at-page .at-cap-grid article:after{content:"";position:absolute;width:110px;height:110px;right:-48px;top:-52px;border-radius:50%;background:linear-gradient(135deg,rgba(23,108,245,.11),rgba(32,185,232,.03))}
.at-page .at-cap-grid article:hover{transform:translateY(-4px);border-color:#b9d2f2;box-shadow:0 17px 38px rgba(39,76,125,.11)}
.at-page .at-cap-grid article>span{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;background:#edf4ff}
.at-page .at-cap-grid h3{font-size:23px;margin:17px 0 12px}
.at-page .at-cap-grid small{margin-top:18px;color:#4f6d92}

.at-page .at-flow{gap:10px;align-items:center}
.at-page .at-flow div{min-height:150px;padding:24px 15px;border:1px solid #dfe7f2;border-radius:15px;box-shadow:0 8px 24px rgba(39,76,125,.055)}
.at-page .at-flow b{width:34px;height:34px;line-height:34px;background:linear-gradient(135deg,#e6f0ff,#edfaff);box-shadow:inset 0 0 0 1px #d6e6fb}
.at-page .at-flow em{justify-content:center;width:26px;height:26px;border-radius:50%;background:#edf4ff;color:var(--at-blue);font-weight:800}
.at-page .at-duty-row{gap:14px;margin-top:32px}
.at-page .at-duty-row div{padding:21px 20px;border:1px solid #e0e8f3;border-top:4px solid #91a5bd;border-radius:13px;background:#fff}
.at-page .at-duty-row div.active{border-color:#bdd4f3;border-top-color:var(--at-blue);background:#edf5ff}
.at-page .at-note{margin-top:32px;border-radius:0 14px 14px 0;padding:22px 26px}

.at-page .at-section.dark{position:relative;background:linear-gradient(135deg,#0e2349 0%,#153b72 62%,#11558a 100%)}
.at-page .at-section.dark:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 84% 18%,rgba(54,190,235,.15),transparent 28%);pointer-events:none}
.at-page .dark>.at-wrap{position:relative;z-index:1}
.at-page .dark .at-heading>p{background:rgba(255,255,255,.12)}
.at-page .at-roles article{min-height:218px;padding:28px 25px;border-radius:16px;background:rgba(255,255,255,.07);backdrop-filter:blur(5px)}
.at-page .at-roles article.active{border-color:#fff;background:#fff;box-shadow:0 20px 45px rgba(0,0,0,.18)}
.at-page .at-dark-statement.at-semantic{border-radius:14px;padding:23px 27px;background:rgba(255,255,255,.08)}

.at-page .at-models{border:1px solid #e0e8f3;border-radius:18px;background:#fff;box-shadow:0 14px 38px rgba(39,76,125,.07);overflow:hidden}
.at-page .at-models article{position:relative;min-height:210px;padding:30px 27px;border-color:#e5ebf4}
.at-page .at-models b{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;background:#edf4ff}
.at-page .at-models h3{font-size:21px;margin:18px 0 10px}
.at-page .at-model-note{max-width:1060px;margin-top:32px;padding:24px 26px;border:1px solid #e1e9f4;border-radius:14px;background:#f8fbff}

.at-page .at-proof{background:linear-gradient(180deg,#f5f9ff,#eef5fd)}
.at-page .at-subtitle{position:relative;padding-left:16px;font-size:26px}
.at-page .at-subtitle:before{content:"";position:absolute;left:0;top:.18em;width:4px;height:1em;border-radius:4px;background:linear-gradient(var(--at-blue),var(--at-cyan))}
.at-page .at-proof-anchor{margin:0 0 25px;padding:20px 23px;border-radius:13px;background:rgba(255,255,255,.72)}
@media(min-width:601px){.at-page .at-apps{grid-template-columns:repeat(2,minmax(0,1fr))}}
.at-page .at-proof-grid,.at-page .at-apps,.at-page .at-articles{gap:18px}
.at-page .at-proof-grid a,.at-page .at-article-card{border:1px solid #dfe8f4;border-radius:14px;box-shadow:0 8px 24px rgba(39,76,125,.055);transition:.22s ease}
.at-page .at-proof-grid a{position:relative;padding:23px 24px}
.at-page .at-proof-grid a:after{content:"→";position:absolute;right:20px;top:20px;color:#8fb2de;transition:.22s ease}
.at-page .at-proof-grid a:hover,.at-page .at-article-card:hover{transform:translateY(-3px);border-color:#bdd4f2;box-shadow:0 14px 32px rgba(39,76,125,.10)}
.at-page .at-proof-grid a:hover:after{right:16px;color:var(--at-blue)}
.at-page .at-apps article{border:1px solid #dfe8f4;border-radius:15px;box-shadow:0 10px 28px rgba(39,76,125,.07);transition:.22s ease}
.at-page .at-apps article:hover{transform:translateY(-4px);box-shadow:0 17px 36px rgba(39,76,125,.12)}
.at-page .at-apps img{height:auto;aspect-ratio:862/517;object-fit:cover;background:#eef4fb}
.at-page .at-apps div{padding:19px 20px 20px}
.at-page .at-article-card{min-height:195px;padding:25px 24px;background:#fff}
.at-page .at-article-card span{display:inline-block;padding:5px 9px;border-radius:6px;background:#eaf2ff}
.at-page .at-article-card b{display:inline-flex;align-items:center;gap:5px}
.at-page .at-article-card b:after{content:"→"}
.at-page .at-all{border:1px solid #dfe8f4;border-radius:13px;overflow:hidden;box-shadow:0 8px 24px rgba(39,76,125,.045)}
.at-page .at-all summary{padding:18px 22px;background:#fff}

.at-page .at-final{position:relative;padding:80px 0;background:linear-gradient(135deg,#e7f1ff,#eefaff);overflow:hidden}
.at-page .at-final:before{content:"";position:absolute;width:360px;height:360px;left:-170px;top:-190px;border-radius:50%;background:rgba(23,108,245,.08)}
.at-page .at-final h2{font-size:37px;letter-spacing:-.5px}
.at-page .at-final p{font-size:16px}

@media(max-width:950px){
  .at-page .at-hero{padding:86px 0 82px}
  .at-page .at-hero-grid{grid-template-columns:1fr;gap:48px}
  .at-page .at-connect-map{max-width:640px;width:100%;margin:auto}
  .at-page .at-use-card{min-height:0}
  .at-page .at-use-card>strong{min-height:0}
  .at-page .at-cap-grid article{min-height:0}
}
@media(max-width:600px){
  .at-page .at-wrap{width:calc(100% - 30px)}
  .at-page .at-hero{padding:64px 0 66px}
  .at-page .at-hero h1{font-size:37px;letter-spacing:-1px}
  .at-page .at-hero h2{font-size:22px}
  .at-page .at-connect-map{padding:22px 18px;border-radius:18px}
  .at-page .at-map-row{gap:6px}
  .at-page .at-map-row span{font-size:12px;padding:11px 3px}
  .at-page .at-map-arrow:before,.at-page .at-map-arrow:after{width:20px;margin:0 6px 4px}
  .at-page .at-section{padding:66px 0}
  .at-page .at-heading{margin-bottom:34px}
  .at-page .at-heading h2{font-size:30px;letter-spacing:-.3px}
  .at-page .at-use-card,.at-page .at-cap-grid article{padding:27px 23px;border-radius:15px}
  .at-page .at-flow div{min-height:0}
  .at-page .at-models{border-radius:15px}
  .at-page .at-models article{min-height:0}
  .at-page .at-proof-grid a,.at-page .at-article-card{border-radius:12px}
  .at-page .at-final{padding:64px 0}
  .at-page .at-final h2{font-size:30px}
}

/* AI topic content modules synced from the revised content page. */
.at-page .at-product-stage{position:relative;margin:0;min-width:0}
.at-page .at-product-window{position:relative;padding:13px;border:1px solid rgba(149,181,220,.7);border-radius:22px;background:rgba(255,255,255,.9);box-shadow:0 28px 70px rgba(26,70,132,.2);transform:perspective(1200px) rotateY(-3deg) rotateX(1deg)}
.at-page .at-product-window:before{content:"";display:block;height:26px;margin:-2px -2px 10px;border-radius:12px 12px 5px 5px;background:radial-gradient(circle at 12px 13px,#ff7d74 0 3px,transparent 4px),radial-gradient(circle at 25px 13px,#ffc55f 0 3px,transparent 4px),radial-gradient(circle at 38px 13px,#57cf78 0 3px,transparent 4px),linear-gradient(90deg,#edf3fb,#f8fbff)}
.at-page .at-product-window img{display:block;width:100%;height:auto;border:1px solid #e4ebf4;border-radius:9px;background:#f7faff}
.at-page .at-window-label{position:absolute;z-index:2;right:25px;top:19px;color:#5e7390;font-size:12px;font-weight:700;letter-spacing:.08em}
.at-page .at-product-stage figcaption{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:18px}
.at-page .at-product-stage figcaption span{padding:7px 12px;border:1px solid #d7e3f2;border-radius:999px;background:rgba(255,255,255,.82);color:#4b6484;font-size:13px;font-weight:600}

.at-page .at-mes-product{display:grid;grid-template-columns:minmax(280px,.72fr) minmax(0,1.28fr);gap:38px;align-items:center;margin:38px 0 0;padding:34px;border-radius:22px;background:linear-gradient(135deg,#102b58,#1763a4);box-shadow:0 22px 55px rgba(21,65,122,.16);overflow:hidden}
.at-page .at-mes-product>div{color:#fff}
.at-page .at-mes-product>div>span{display:inline-block;margin-bottom:13px;color:#9fdcf4;font-size:13px;font-weight:700;letter-spacing:.08em}
.at-page .at-mes-product h3{margin:0 0 15px;color:#fff;font-size:25px;line-height:1.45}
.at-page .at-mes-product p{margin:0;color:#d4e3f3;line-height:1.85}
.at-page .at-mes-product img{display:block;width:100%;height:auto;border:8px solid rgba(255,255,255,.94);border-radius:14px;background:#fff;box-shadow:0 20px 45px rgba(0,0,0,.2)}
.at-page .at-models article:after{content:"";position:absolute;left:27px;right:27px;bottom:0;height:3px;background:linear-gradient(90deg,var(--at-blue),var(--at-cyan));transform:scaleX(0);transform-origin:left;transition:.22s ease}
.at-page .at-models article:hover:after{transform:scaleX(1)}

.at-page .at-topic-index{border-bottom:1px solid #e2eaf4;background:#fff}
.at-page .at-topic-index .at-wrap{display:flex;align-items:center;gap:10px 22px;padding:18px 0;flex-wrap:wrap}
.at-page .at-topic-index strong{color:#102a50;font-size:14px}
.at-page .at-topic-index a{color:#506984;font-size:14px;text-decoration:none;transition:.18s ease}
.at-page .at-topic-index a:hover{color:var(--at-blue)}
.at-page section[id]{scroll-margin-top:24px}
.at-page .at-deep-links{display:flex;align-items:center;gap:10px 18px;margin-top:25px;padding-top:21px;border-top:1px solid #dce6f2;flex-wrap:wrap}
.at-page .at-deep-links span{font-size:13px;font-weight:800;color:#244667}
.at-page .at-deep-links a{position:relative;padding-right:15px;color:#245f9f;font-size:14px;line-height:1.6;text-decoration:none}
.at-page .at-deep-links a:after{content:"→";position:absolute;right:0;transition:.18s ease}
.at-page .at-deep-links a:hover{color:var(--at-blue);text-decoration:underline}
.at-page .at-deep-links a:hover:after{right:-3px}
.at-page .at-deep-links.on-dark{border-top-color:rgba(255,255,255,.18)}
.at-page .at-deep-links.on-dark span{color:#dceaff}
.at-page .at-deep-links.on-dark a{color:#c5dcff}

.at-page #ai-data{background:#fff}
.at-page .at-data-lead{max-width:1050px;margin:0 auto 32px;color:#415873;font-size:16px;line-height:1.9;text-align:center}
.at-page .at-data-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid #dfe7f2;border-bottom:1px solid #dfe7f2}
.at-page .at-data-grid a{display:flex;min-height:170px;padding:28px 25px;flex-direction:column;color:#1a304d;text-decoration:none;background:#fff;transition:.2s ease}
.at-page .at-data-grid a+a{border-left:1px solid #dfe7f2}
.at-page .at-data-grid a:hover{background:#f4f8fe}
.at-page .at-data-grid b{margin-bottom:13px;color:#102a50;font-size:19px;line-height:1.45}
.at-page .at-data-grid span{color:#60738a;font-size:14px;line-height:1.75}

.at-page .at-cluster{margin-top:72px;padding-top:4px}
.at-page .at-cluster-intro{max-width:970px;margin:0 0 30px;color:#455d78;line-height:1.9}
.at-page .at-cluster-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid #d9e4f1;border-left:1px solid #d9e4f1;background:rgba(255,255,255,.45)}
.at-page .at-cluster-group{padding:30px 30px 28px;border-right:1px solid #d9e4f1;border-bottom:1px solid #d9e4f1}
.at-page .at-cluster-group h4{margin:0 0 9px;color:#102a50;font-size:21px}
.at-page .at-cluster-group>p{min-height:48px;margin:0 0 18px;color:#667a91;font-size:14px;line-height:1.7}
.at-page .at-cluster-group ul{margin:0;padding:0;list-style:none}
.at-page .at-cluster-group li{position:relative;padding:10px 0 10px 17px;border-top:1px solid rgba(207,220,235,.72)}
.at-page .at-cluster-group li:before{content:"";position:absolute;left:1px;top:20px;width:5px;height:5px;border-radius:50%;background:#4e92df}
.at-page .at-cluster-group a{color:#244e7d;font-size:14px;line-height:1.65;text-decoration:none}
.at-page .at-cluster-group a:hover{color:var(--at-blue);text-decoration:underline}

.at-page .at-answer-section{padding-top:76px;background:linear-gradient(180deg,#f7faff 0%,#fff 100%)}
.at-page .at-quick-answers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin:0;border-top:1px solid #dbe5f1;border-left:1px solid #dbe5f1}
.at-page .at-quick-answers>div{padding:25px 27px;border-right:1px solid #dbe5f1;border-bottom:1px solid #dbe5f1;background:rgba(255,255,255,.8)}
.at-page .at-quick-answers dt{margin:0 0 11px;color:#102a50;font-size:18px;font-weight:800;line-height:1.5}
.at-page .at-quick-answers dd{margin:0;color:#526a84;font-size:15px;line-height:1.85}
.at-page .at-boundary-answer{margin-top:34px;padding:28px 30px;border-left:4px solid var(--at-blue);background:#fff;box-shadow:0 8px 28px rgba(39,76,125,.06)}
.at-page .at-boundary-answer h3,.at-page .at-permission-answer h3{margin:0 0 13px;color:#102a50;font-size:21px;line-height:1.5}
.at-page .at-boundary-answer p,.at-page .at-permission-answer p{margin:8px 0 0;color:#4d637c;font-size:15px;line-height:1.85}
.at-page .at-permission-answer{max-width:1050px;margin:0 auto 32px;padding:25px 28px;border:1px solid #dce6f2;background:#f7faff}

.at-page .at-apps article figure{height:100%;margin:0}
.at-page .at-apps figcaption{padding:19px 20px 22px}
.at-page .at-apps figcaption b{display:block;margin-bottom:8px;color:#102a50;font-size:18px}
.at-page .at-apps figcaption span{display:block;color:#5b7088;font-size:14px;line-height:1.8}
.at-page .at-apps .at-app-text-card{grid-column:1/-1}
.at-page .at-apps .at-text-only{display:flex;min-height:190px;align-items:center;background:linear-gradient(135deg,#fff,#f3f8ff)}
.at-page .at-apps .at-text-only figcaption{max-width:900px}

@media(max-width:950px){
  .at-page .at-product-window{transform:none}
  .at-page .at-mes-product{grid-template-columns:1fr}
  .at-page .at-data-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .at-page .at-data-grid a:nth-child(3){border-left:0;border-top:1px solid #dfe7f2}
  .at-page .at-data-grid a:nth-child(4){border-top:1px solid #dfe7f2}
}
@media(max-width:700px){
  .at-page .at-quick-answers{grid-template-columns:1fr}
  .at-page .at-answer-section{padding-top:62px}
  .at-page .at-boundary-answer,.at-page .at-permission-answer{padding:23px 21px}
}
@media(max-width:600px){
  .at-page .at-product-window{padding:8px;border-radius:14px}
  .at-page .at-window-label{display:none}
  .at-page .at-mes-product{padding:24px 20px;gap:24px;border-radius:16px}
  .at-page .at-mes-product h3{font-size:21px}
  .at-page .at-topic-index .at-wrap{gap:8px 14px;padding:15px 0}
  .at-page .at-topic-index strong{width:100%}
  .at-page .at-deep-links{align-items:flex-start;flex-direction:column;gap:8px}
  .at-page .at-data-lead{text-align:left}
  .at-page .at-data-grid,.at-page .at-cluster-groups{grid-template-columns:1fr}
  .at-page .at-data-grid a{min-height:0;padding:24px 22px;border-left:0!important;border-top:1px solid #dfe7f2}
  .at-page .at-data-grid a:first-child{border-top:0}
  .at-page .at-cluster{margin-top:58px}
  .at-page .at-cluster-group{padding:25px 21px}
  .at-page .at-cluster-group>p{min-height:0}
}

/* AI topic visual refinement: softer navigation, title scale and light-blue feature panels. */
.at-page .at-hero h1{max-width:620px;font-size:40px;line-height:1.22;letter-spacing:-.8px}
.at-page .at-hero h2{font-size:24px;line-height:1.55}

.at-page .at-topic-index{padding:16px 0 20px;border:0;background:linear-gradient(180deg,#f4f8fe 0%,#f8fbff 100%)}
.at-page .at-topic-index .at-wrap{gap:10px 8px;padding:12px 14px;border:1px solid #dbe7f5;border-radius:14px;background:rgba(255,255,255,.8);box-shadow:0 8px 24px rgba(51,91,143,.06)}
.at-page .at-topic-index strong{padding:7px 11px;color:#174f91;font-size:13px}
.at-page .at-topic-index a{padding:7px 11px;border-radius:8px;color:#4d6480;font-size:13px;line-height:1.4}
.at-page .at-topic-index a:hover{background:#e8f2ff;color:var(--at-blue)}

.at-page .at-mes-product{border:1px solid #e0e8f2;background:linear-gradient(180deg,#f6f9fe 0%,#f2f7fd 100%);box-shadow:0 14px 36px rgba(54,79,112,.07)}
.at-page .at-mes-product>div{color:#18375d}
.at-page .at-mes-product>div>span{color:#2773c8}
.at-page .at-mes-product h3{color:#14345c}
.at-page .at-mes-product p{color:#516b88}
.at-page .at-mes-product img{border-color:rgba(255,255,255,.95);box-shadow:0 14px 34px rgba(52,91,139,.13)}

.at-page .at-section.dark{color:#243b59;background:linear-gradient(180deg,#f6f9fe 0%,#f2f7fd 100%)}
.at-page .at-section.dark:after{background:radial-gradient(circle at 84% 18%,rgba(54,190,235,.13),transparent 30%)}
.at-page .dark .at-heading>p{color:#176cf5;background:#dcecff}
.at-page .dark .at-heading h2{color:#102448}
.at-page .dark .at-heading h3{color:#5b7089}
.at-page .at-roles article{border-color:#cbdcef;background:rgba(255,255,255,.55);box-shadow:0 8px 24px rgba(39,76,125,.05)}
.at-page .at-roles article.active{border-color:#a9c9ee;background:#fff;box-shadow:0 12px 30px rgba(39,76,125,.1)}
.at-page .at-roles article:not(.active) p{color:#5d7088}
.at-page .dark .at-semantic{color:#405b79}
.at-page .at-dark-statement.at-semantic{border-color:#c8dbee;background:rgba(255,255,255,.55);color:#405b79}
.at-page .at-deep-links.on-dark{border-top-color:#c7d9ec}
.at-page .at-deep-links.on-dark span{color:#315777}
.at-page .at-deep-links.on-dark a{color:#2867aa}

@media(max-width:950px){
  .at-page .at-hero h1{font-size:38px}
}
@media(max-width:600px){
  .at-page .at-hero h1{font-size:32px;letter-spacing:-.4px}
  .at-page .at-hero h2{font-size:20px}
  .at-page .at-topic-index{padding:12px 0 16px}
  .at-page .at-topic-index .at-wrap{gap:7px;padding:11px}
  .at-page .at-topic-index strong{width:100%;padding:5px 8px}
  .at-page .at-topic-index a{padding:6px 8px}
}

/* Product screenshot cleanup and application-grid balance. */
@media(min-width:951px){
  .at-page .at-hero{padding:120px 0 80px}
  .at-page .at-hero .at-wrap{width:min(1280px,calc(100% - 48px))}
  .at-page .at-hero-grid{grid-template-columns:minmax(0,620px) minmax(0,620px);gap:40px}
  .at-page .at-hero h1{max-width:620px;margin:16px 0 14px;font-size:38px;line-height:1.24;letter-spacing:-.6px}
  .at-page .at-hero h2{max-width:620px;margin-bottom:17px;font-size:21px;line-height:1.5}
  .at-page .at-hero-copy{max-width:620px;font-size:15px;line-height:1.82}
  .at-page .at-actions{margin-top:23px}
}
.at-page .at-semantic-box,
.at-page .at-cap-lead,
.at-page .at-note,
.at-page .at-dark-statement.at-semantic,
.at-page .at-model-note{width:100%;max-width:none;margin-left:0;margin-right:0}
.at-page .at-product-window{padding:0;border:0;border-radius:14px;background:transparent;box-shadow:0 18px 42px rgba(38,83,143,.13);transform:none;overflow:hidden}
.at-page .at-product-window:before,.at-page .at-window-label,.at-page .at-product-stage>figcaption{display:none}
.at-page .at-product-window img{border:0;border-radius:14px}
.at-page .at-mes-product img{border:0}

@media(min-width:701px){
  .at-page .at-apps article:first-child{grid-column:1/-1;background:linear-gradient(135deg,#fff,#f5f9ff)}
  .at-page .at-apps article:first-child figure{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(280px,.55fr);align-items:stretch}
  .at-page .at-apps article:first-child .at-app-image-crop{min-width:0;padding:0!important;overflow:hidden}
  .at-page .at-apps article:first-child img{display:block;width:calc(100% + 4px);max-width:none;height:calc(100% + 4px);margin:-2px;aspect-ratio:auto;border:0;object-fit:cover;object-position:top}
  .at-page .at-apps article:first-child figcaption{display:flex;justify-content:center;flex-direction:column;padding:30px}
  .at-page .at-apps article:first-child figcaption b{font-size:24px}
}
@media(max-width:700px){
  .at-page .at-apps article:first-child{grid-column:auto}
  .at-page .at-apps article:first-child figure{display:block}
  .at-page .at-apps article:first-child .at-app-image-crop{padding:0!important;overflow:hidden}
  .at-page .at-apps article:first-child img{display:block;width:calc(100% + 4px);max-width:none;height:auto;margin:-2px;border:0}
}