:root{--ink:#14213d;--text:#43506a;--muted:#728099;--paper:#f4f1e8;--card:#fffdf8;--line:#dcd7ca;--teal:#0c766e;--teal2:#15a89b;--orange:#d66b38;--navy:#183153;--gold:#b78931;--red:#b42318;--shadow:0 22px 55px rgba(20,33,61,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,#f8f6f0 0,#f1f5f4 45%,#f4f1e8 100%);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}button{font:inherit}.rd-topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px max(22px,calc((100vw - 1200px)/2));border-bottom:1px solid rgba(220,215,202,.85);background:rgba(255,253,248,.92);backdrop-filter:blur(15px)}.rd-brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}.rd-brand img{width:38px;height:38px;object-fit:contain}.rd-brand span{font-weight:950;letter-spacing:.06em}.rd-brand small{border-left:1px solid var(--line);padding-left:10px;color:var(--muted);font-size:11px}.rd-topbar nav{display:flex;gap:7px}.rd-topbar nav a{border:1px solid var(--line);border-radius:999px;padding:7px 11px;color:var(--text);text-decoration:none;font-size:12px;font-weight:800;background:#fff}.rd-topbar nav a:hover{border-color:var(--teal);color:var(--teal)}main{max-width:1200px;margin:auto}.rd-hero{display:grid;grid-template-columns:1.25fr .75fr;gap:34px;align-items:center;padding:74px 24px 54px}.rd-eyebrow,.rd-section-head span{display:block;color:var(--teal);font-size:11px;font-weight:950;letter-spacing:.12em;text-transform:uppercase}.rd-hero h1{margin:12px 0 16px;color:var(--ink);font-family:Georgia,"Songti SC",serif;font-size:clamp(42px,6vw,74px);line-height:1.08;letter-spacing:-.035em}.rd-hero h1 em{color:var(--teal);font-style:normal}.rd-hero-copy>p{max-width:700px;margin:0;font-size:16px;line-height:1.85}.rd-actions{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0 14px}.rd-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;border:1px solid #bdc6ca;border-radius:10px;background:#fff;color:var(--navy);padding:9px 17px;font-size:13px;font-weight:900;cursor:pointer;transition:.2s}.rd-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px rgba(20,33,61,.12)}.rd-btn.primary{border-color:var(--teal);background:var(--teal);color:#fff}.rd-btn.ghost{background:transparent}.rd-btn:disabled{opacity:.42;cursor:not-allowed}.rd-source-note{font-size:12px!important;color:#8c642a}.rd-value-card{border:1px solid rgba(12,118,110,.18);border-radius:24px;background:linear-gradient(145deg,#fffdf8,#e8f5f1);box-shadow:var(--shadow);padding:22px}.rd-value-card>span{color:var(--teal);font-size:12px;font-weight:950}.rd-value-card>div{display:grid;grid-template-columns:42px 1fr;gap:12px;padding:15px 0;border-top:1px solid rgba(12,118,110,.12)}.rd-value-card>div:first-of-type{margin-top:10px}.rd-value-card b{color:var(--orange);font:900 24px Georgia,serif}.rd-value-card p{margin:0;font-size:13px;line-height:1.65}.rd-value-card strong{color:var(--ink)}.rd-demo,.rd-template,.rd-acceptance{margin:0 20px 34px;border:1px solid var(--line);border-radius:24px;background:rgba(255,253,248,.86);box-shadow:var(--shadow);padding:26px}.rd-section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}.rd-section-head h2{margin:4px 0 0;color:var(--ink);font-size:28px}.rd-section-head>p{max-width:460px;margin:0;color:var(--muted);font-size:12.5px;text-align:right;line-height:1.6}.rd-status{border-radius:999px;background:#edf8f5;color:var(--teal);padding:7px 12px;font-size:11.5px;font-weight:900}.rd-status.error{background:#fef2f2;color:var(--red)}.rd-progress{height:5px;border-radius:999px;background:#e5e7eb;overflow:hidden}.rd-progress i{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--teal),var(--orange));transition:width .35s}.rd-steps{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin:15px 0}.rd-steps button{display:grid;grid-template-columns:30px 1fr;gap:1px 8px;align-items:center;border:1px solid var(--line);border-radius:12px;background:#fff;padding:10px;text-align:left;cursor:pointer}.rd-steps span{grid-row:1/3;display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:9px;background:#eef3f2;color:var(--teal);font-size:11px;font-weight:950}.rd-steps b{color:var(--ink);font-size:11.5px}.rd-steps small{color:var(--muted);font-size:9.5px}.rd-steps button.active{border-color:var(--teal);background:#edf8f5;box-shadow:0 6px 18px rgba(12,118,110,.12)}.rd-steps button.done span{background:var(--teal);color:#fff}.rd-stage{min-height:570px;border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}.rd-empty{min-height:570px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;padding:30px;text-align:center}.rd-empty b{color:var(--ink);font-size:22px}.rd-empty span{max-width:560px;color:var(--muted);font-size:13px;line-height:1.7}.rd-stage-actions{display:flex;align-items:center;justify-content:space-between;margin-top:14px}.rd-stage-actions span{color:var(--muted);font-size:12px;font-weight:900}.rd-slide{animation:rd-in .32s ease both}.rd-slide-head{display:flex;justify-content:space-between;gap:20px;padding:22px 24px;border-bottom:1px solid var(--line);background:linear-gradient(90deg,#f8faf9,#fffaf2)}.rd-slide-head span{color:var(--teal);font-size:11px;font-weight:950}.rd-slide-head h3{margin:4px 0 0;color:var(--ink);font-size:25px}.rd-slide-head p{max-width:480px;margin:0;color:var(--muted);font-size:12px;line-height:1.65;text-align:right}.rd-slide-body{padding:24px}.rd-split{display:grid;grid-template-columns:1fr 1fr;gap:18px}.rd-panel{border:1px solid var(--line);border-radius:16px;background:var(--card);padding:18px}.rd-panel.accent{border-color:rgba(12,118,110,.25);background:#edf8f5}.rd-panel h4{margin:0 0 11px;color:var(--ink);font-size:15px}.rd-panel p{font-size:13px;line-height:1.7}.rd-role{display:inline-flex;border-radius:999px;background:#fff1e8;color:#a64d25;padding:5px 9px;font-size:11px;font-weight:900}.rd-chip-row{display:flex;flex-wrap:wrap;gap:7px}.rd-chip{border:1px solid #c9ded9;border-radius:999px;background:#fff;color:var(--teal);padding:5px 9px;font-size:10.5px;font-weight:850}.rd-list{display:grid;gap:8px;margin:0;padding:0;list-style:none}.rd-list li{position:relative;padding-left:19px;font-size:12.5px;line-height:1.6}.rd-list li:before{content:"";position:absolute;left:2px;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--orange)}.rd-principle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.rd-principle{border:1px solid var(--line);border-radius:15px;background:#fff;padding:17px}.rd-principle b{color:var(--teal);font-size:15px}.rd-principle p{margin:7px 0;color:var(--text);font-size:12.5px;line-height:1.65}.rd-principle small{color:var(--muted);font-size:10.5px}.rd-upload{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.rd-art{position:relative;border:1px solid var(--line);border-radius:16px;background:#f6f3eb;overflow:hidden}.rd-art img{display:block;width:100%;height:410px;object-fit:contain}.rd-art-label{position:absolute;left:12px;top:12px;border-radius:999px;background:rgba(20,33,61,.86);color:#fff;padding:5px 10px;font-size:10.5px;font-weight:900}.rd-level{display:flex;align-items:center;justify-content:space-between;border-radius:14px;background:var(--navy);color:#fff;padding:14px}.rd-level b{font:900 34px Georgia,serif}.rd-level span{font-size:11px}.rd-evidence{display:grid;gap:8px;margin-top:12px}.rd-evidence div{border-left:3px solid var(--orange);background:#fff7ed;padding:9px 11px;font-size:12px;line-height:1.55}.rd-chain{border-radius:14px;background:#fff3e8;color:#8c431f;padding:14px;font-weight:850;line-height:1.7}.rd-task{border:2px solid var(--teal);border-radius:16px;background:#edf8f5;padding:16px}.rd-task>span{color:var(--teal);font-size:10.5px;font-weight:950}.rd-task h4{margin:5px 0 9px;color:var(--ink);font-size:18px}.rd-task p{margin:6px 0}.rd-metric-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin-bottom:16px}.rd-metric{border:1px solid var(--line);border-radius:13px;background:#fff;padding:13px}.rd-metric b{display:block;color:var(--teal);font-size:23px}.rd-metric span{color:var(--muted);font-size:10.5px}.rd-table-wrap{max-height:300px;overflow:auto;border:1px solid var(--line);border-radius:13px}.rd-table{width:100%;border-collapse:collapse}.rd-table th,.rd-table td{padding:9px 10px;border-bottom:1px solid #edf0ec;text-align:left;font-size:11.5px}.rd-table th{position:sticky;top:0;background:#f7f8f5;color:var(--muted);font-size:10px}.rd-table tr.focus td{background:#fff4ea;color:#8c431f;font-weight:850}.rd-teacher-advice{display:grid;gap:9px}.rd-teacher-advice div{border-left:3px solid var(--teal);padding:8px 12px;background:#f6faf9;font-size:12px;line-height:1.6}.rd-compare{display:grid;grid-template-columns:1fr 1fr;gap:2px;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--line)}.rd-compare figure{position:relative;margin:0;background:#f6f3eb}.rd-compare img{display:block;width:100%;height:330px;object-fit:contain}.rd-compare figcaption{position:absolute;left:10px;top:10px;border-radius:999px;background:rgba(20,33,61,.86);color:#fff;padding:5px 9px;font-size:10px;font-weight:900}.rd-growth{display:grid;gap:8px}.rd-growth-row{display:grid;grid-template-columns:74px 1fr 34px;gap:8px;align-items:center;font-size:11px}.rd-growth-track{height:9px;border-radius:999px;background:#e4e8e5;overflow:hidden}.rd-growth-track i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--teal),var(--orange))}.rd-growth-row b{color:var(--teal);text-align:right}.rd-template-flow{display:grid;grid-template-columns:1.2fr auto .8fr auto .9fr;gap:12px;align-items:center;margin-bottom:18px}.rd-kernel,.rd-assets-label,.rd-output{border-radius:15px;padding:15px;background:var(--navy);color:#fff}.rd-assets-label{background:var(--teal)}.rd-output{background:var(--orange)}.rd-template-flow small{display:block;margin-bottom:4px;opacity:.7;font-size:10px}.rd-template-flow b{font-size:12px;line-height:1.6}.rd-arrow{color:var(--gold);font-size:27px;font-weight:950}.rd-asset-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:11px}.rd-asset{border:1px solid var(--line);border-radius:14px;background:#fff;padding:14px}.rd-asset span{color:var(--orange);font:900 12px Georgia,serif}.rd-asset h3{margin:4px 0;color:var(--ink);font-size:14px}.rd-asset p{margin:5px 0;color:var(--text);font-size:11.5px;line-height:1.55}.rd-asset code{color:var(--teal);font-size:9.5px;word-break:break-all}.rd-targets{display:flex;align-items:center;gap:12px;margin-top:15px;padding:14px;border-radius:14px;background:#f3f7f5}.rd-targets>b{color:var(--ink);white-space:nowrap}.rd-targets>div{display:flex;gap:7px;flex-wrap:wrap}.rd-targets span{border-radius:999px;background:#fff;color:var(--teal);padding:6px 10px;font-size:11px;font-weight:850}.rd-doc-link{text-align:right}.rd-doc-link a{color:var(--teal);font-size:12px;font-weight:900}.rd-score-summary{display:flex;align-items:center;justify-content:space-between;border-radius:17px;background:var(--navy);color:#fff;padding:17px 20px;margin-bottom:14px}.rd-score-summary b{font:900 37px Georgia,serif}.rd-score-summary span{font-size:12px;opacity:.8}.rd-score-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.rd-score-group{border:1px solid var(--line);border-radius:14px;background:#fff;padding:13px}.rd-score-group h3{display:flex;justify-content:space-between;gap:5px;margin:0 0 8px;color:var(--ink);font-size:12px}.rd-score-group h3 b{color:var(--teal)}.rd-score-group ul{display:grid;gap:5px;margin:0;padding:0;list-style:none}.rd-score-group li{display:grid;grid-template-columns:1fr auto;gap:5px;color:var(--text);font-size:9.8px;line-height:1.35}.rd-score-group li span:last-child{color:var(--orange);font-weight:900}footer{padding:30px 20px 44px;text-align:center;color:#8d98a8;font-size:11px}@keyframes rd-in{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}@media(max-width:960px){.rd-hero{grid-template-columns:1fr}.rd-steps{grid-template-columns:repeat(3,1fr)}.rd-split,.rd-upload{grid-template-columns:1fr}.rd-principle-grid,.rd-asset-grid{grid-template-columns:1fr 1fr}.rd-score-grid{grid-template-columns:1fr 1fr}.rd-template-flow{grid-template-columns:1fr}.rd-arrow{text-align:center;transform:rotate(90deg)}.rd-metric-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:620px){.rd-topbar{align-items:flex-start}.rd-topbar nav{display:none}.rd-brand small{display:none}.rd-hero{padding:44px 18px 36px}.rd-demo,.rd-template,.rd-acceptance{margin:0 10px 22px;padding:15px}.rd-section-head,.rd-slide-head{align-items:flex-start;flex-direction:column}.rd-section-head>p,.rd-slide-head p{text-align:left}.rd-steps{grid-template-columns:1fr 1fr}.rd-stage{min-height:500px}.rd-slide-body{padding:15px}.rd-principle-grid,.rd-asset-grid,.rd-score-grid{grid-template-columns:1fr}.rd-metric-grid{grid-template-columns:1fr 1fr}.rd-compare{grid-template-columns:1fr}.rd-art img{height:280px}.rd-compare img{height:240px}.rd-targets{align-items:flex-start;flex-direction:column}}