:root{--bg:#fff;--bg-soft:#f5f8fc;--panel:#fff;--panel-2:#f8fbfe;--line:#e3ecf6;--line-strong:#ccdcee;--text:#17233a;--muted:#5a6a85;--faint:#8b98ae;--accent:#2e7cd6;--accent-light:#5ea3ec;--accent-soft:#2e7cd614;--teal:#0d9488;--teal-soft:#0d948814;--glow:#2e7cd629;--radius:18px;--radius-sm:12px;--shadow-card:0 2px 6px #1e50960d, 0 14px 34px #1e509612;--shadow-lift:0 4px 10px #1e50960f, 0 22px 48px #1e50961f;--font-sans:"PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;--font-mono:ui-monospace, "Cascadia Mono", Consolas, monospace;--header-h:64px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 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14px;font-size:14px;transition:color .18s,background .18s}.site-nav a:hover{color:var(--accent);background:var(--accent-soft)}.nav-cta{color:#fff;background:linear-gradient(135deg, var(--accent-light), var(--accent));border-radius:10px;flex-shrink:0;padding:8px 18px;font-size:14px;font-weight:600;transition:transform .18s,box-shadow .18s;box-shadow:0 4px 16px #2e7cd652}.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 22px #2e7cd673}.menu-button{border:1px solid var(--line-strong);width:40px;height:40px;color:var(--text);background:#fff;border-radius:10px;justify-content:center;align-items:center;display:none}.hero{padding:calc(var(--header-h) + 84px) 0 96px;background:linear-gradient(180deg, #f3f8fe 0%, var(--bg) 78%);position:relative;overflow:hidden}.hero-grid-bg{pointer-events:none;background-image:linear-gradient(#2e7cd60f 1px,#0000 1px),linear-gradient(90deg,#2e7cd60f 1px,#0000 1px);background-size:56px 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var(--line);border-radius:var(--radius-sm);background:var(--panel-2);margin:16px 18px 0;padding:14px 16px}.message-meta{color:var(--faint);letter-spacing:.08em;margin-bottom:6px;font-size:11.5px;display:block}.message-text{word-break:break-all;min-height:1.7em;font-size:15px}.caret{vertical-align:-.15em;background:var(--accent);width:8px;height:1.05em;margin-left:2px;animation:.85s steps(2,end) infinite blink;display:inline-block}@keyframes blink{50%{opacity:0}}.console-pipeline{align-items:center;gap:10px;padding:18px 18px 4px;display:flex}.pipeline-step{border:1px solid var(--line);color:var(--faint);white-space:nowrap;background:#fff;border-radius:999px;align-items:center;gap:7px;padding:5px 13px;font-size:12.5px;transition:all .3s;display:inline-flex}.pipeline-step .step-dot{background:currentColor;border-radius:50%;width:7px;height:7px}.pipeline-step.active{color:var(--accent);background:var(--accent-soft);border-color:#2e7cd680}.pipeline-step.active .step-dot{animation:1s 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h3{margin-bottom:9px;font-size:18px;font-weight:700}.feature-card p{color:var(--muted);max-width:34em;font-size:14.5px}.feature-demo{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--panel-2);color:var(--muted);align-items:center;gap:14px;margin-top:22px;padding:13px 16px;font-size:14px;display:flex}.demo-line{text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:8px;min-width:0;display:inline-flex;overflow:hidden}.feature-demo>svg{color:var(--faint);flex-shrink:0}.demo-answer{font-family:var(--font-mono);letter-spacing:.12em;color:var(--teal);flex-shrink:0;font-size:17px}.feature-logs{flex-direction:column;gap:9px;margin-top:22px;display:flex}.feature-logs span{border:1px solid var(--line);background:var(--panel-2);color:var(--muted);border-radius:10px;align-items:center;gap:10px;padding:10px 14px;font-size:13.5px;display:inline-flex}.feature-logs i{border-radius:50%;flex-shrink:0;width:8px;height:8px}.feature-logs i.ok{background:#14b8a6;box-shadow:0 0 6px #14b8a680}.feature-logs i.wait{background:#f5a623;box-shadow:0 0 6px #f5a62373}.recognition-layout{grid-template-columns:1fr 1.05fr;align-items:center;gap:64px;display:grid}.tab-list{flex-wrap:wrap;gap:9px;margin-bottom:26px;display:flex}.tab-list button{border:1px solid var(--line-strong);color:var(--muted);background:#fff;border-radius:11px;align-items:center;gap:7px;padding:9px 18px;font-size:14px;transition:all .2s;display:inline-flex}.tab-list button:hover{color:var(--accent);border-color:var(--accent)}.tab-list button.active{color:#fff;background:linear-gradient(135deg, var(--accent-light), var(--accent));border-color:#0000;font-weight:600;box-shadow:0 6px 18px #2e7cd659}.recognition-detail{animation:.4s fade-in}.recognition-detail h3{margin-bottom:8px;font-size:20px;font-weight:700}.recognition-detail p{color:var(--muted);max-width:30em;font-size:15px}@keyframes 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strong{font-family:var(--font-mono);letter-spacing:.1em;color:var(--teal);font-size:17px}.sample-answer em{color:var(--teal);opacity:.85;align-items:center;gap:4px;font-size:12px;font-style:normal;display:inline-flex}.steps{grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:22px;display:grid;position:relative}.steps:before{content:"";background:linear-gradient(90deg, transparent, var(--line-strong) 20%, var(--line-strong) 80%, transparent);pointer-events:none;height:1px;position:absolute;top:58px;left:6%;right:6%}.step-cell{min-width:0}.step-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);height:100%;box-shadow:var(--shadow-card);padding:26px 24px;transition:border-color .25s,transform .25s,box-shadow 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var(--accent-light), #14b8a6);border-radius:12px;justify-content:center;align-items:center;width:44px;height:44px;font-size:18px;font-weight:700;display:inline-flex;box-shadow:0 6px 16px #2e7cd64d}.group-id strong{font-size:16px;display:block}.group-id small{color:var(--faint);font-size:12.5px}.group-live{color:var(--teal);background:var(--teal-soft);white-space:nowrap;border:1px solid #0d948847;border-radius:999px;align-items:center;gap:7px;padding:6px 14px;font-size:12.5px;display:inline-flex}.group-live i{background:var(--teal);border-radius:50%;width:7px;height:7px;animation:2.2s ease-in-out infinite pulse;box-shadow:0 0 6px #0d948880}.group-modes{grid-template-columns:repeat(4,1fr);display:grid}.mode-row{border-right:1px solid var(--line);flex-direction:column;align-items:flex-start;gap:12px;padding:22px 26px;display:flex}.mode-row:last-child{border-right:none}.mode-name{align-items:center;gap:9px;font-size:14.5px;font-weight:600;display:inline-flex}.mode-name 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