:root{color-scheme:light;--ink:#542637;--gold:#be8e49;--line:#ddc7a7;font-family:system-ui,-apple-system,sans-serif;color:#483e3b;background:#faf0df}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,transparent,#fff7e9b3 85%),url('/knowledge/assets/nine-background-v98.webp?v=9f8c315056007ae8') center top/100% auto no-repeat;font-size:18px;line-height:1.8}a{color:#743b52}header{max-width:1120px;margin:auto;display:flex;justify-content:space-between;gap:20px;padding:24px 34px;font-family:Georgia,serif;color:var(--ink)}header a{text-decoration:none;font-size:15px}.nine-page{max-width:1060px;padding:0 34px 32px;margin:auto}.nine-hero{min-height:360px;padding:38px 0 70px;width:58%;text-shadow:0 2px 15px #fff8ed}h1,h2,h3{font-family:KaiTi,'STKaiti','Noto Serif SC',serif;color:var(--ink);line-height:1.35}h1{font-size:clamp(38px,5.6vw,66px);letter-spacing:.08em;margin:20px 0}h2{font-size:29px;margin:26px 0 20px}h3{font-size:23px}p{margin:12px 0}.eyebrow{font-size:13px;letter-spacing:.14em}.nine-hero .subtitle{font-family:serif;font-weight:700;font-size:23px}.nine-hero p:last-child{font-size:16px}.reading-card,.math-card,.story,.year-wrap{background:#fffaf2ee;border:1px solid var(--line);box-shadow:0 7px 22px #9d603c08;border-radius:18px}.reading-card{padding:26px;margin:28px 0}.math-grid,.story-grid,.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.math-card{padding:20px}.math-card h3{font-size:19px;margin:0 0 16px}.math-card p{font-size:16px}.math-card input{max-width:100%}.math-card output{display:block;font-size:16px;min-height:90px;padding-top:12px}.math-note{font-size:15px;color:#7b6964;text-align:center;margin:15px 0}.search-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:24px}.birth-fields{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:12px}label{display:block;font-size:16px}input,select,textarea{font:inherit;color:#4d3d3e;background:#fffdf8;border:1px solid #d3b997;padding:10px 12px;border-radius:8px;width:100%}button,.button{font:inherit;line-height:1.4;border:1px solid #d2b686;background:#fff7e9;border-radius:30px;color:#673846;padding:11px 20px;cursor:pointer;display:inline-block;text-decoration:none}.primary{background:linear-gradient(#f9d98d,#e9b75c);color:#4e301b;font-weight:700;border-color:#e7bd75}.wide{width:100%;margin-top:18px}.age-result{background:#fff8ecee;border:1px solid #e5d3b9;border-radius:14px;padding:20px;display:grid;align-content:center}.age-result strong{color:var(--ink);font-size:32px;font-family:serif}.tag{display:inline-block;border-radius:20px;padding:1px 13px;font-size:14px;background:#f4dca4;color:#603b27}.tag.an{background:#e2d3e9;color:#603b70}.filters{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0}.filters button{padding:7px 23px}.filters [aria-pressed=true]{background:#75435c;color:#fff}.year-wrap{overflow:hidden}.table-scroll{overflow:auto}table{width:100%;border-collapse:collapse;font-size:16px}th,td{text-align:left;padding:15px 20px;border-bottom:1px solid #e9ddce}th{font-weight:500;background:#f5eee5}td small{display:block;font-size:12px;color:#796c62}.year-current{background:#fff1c8}.actions{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;margin:16px 0}.quiet{font-size:14px;color:#796d67}.classics p{display:flex;justify-content:space-between;gap:14px;border-bottom:1px solid #eadcc9;padding:12px 0}.classics cite{font-size:14px;font-style:normal;color:#877260;white-space:nowrap}.story{padding:24px}.story .monogram{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:#ebe0ce;color:#74584c;font-family:serif;font-size:24px}.story h3{margin:12px 0 8px}.story p{font-size:16px}.product-panel{display:grid;grid-template-columns:1.5fr 1fr;gap:24px;align-items:center;background:linear-gradient(135deg,#fff8ebef,#ecd9e9ee);border:1px solid #d9b88a;border-radius:24px;padding:28px;margin:34px 0}.product-panel img{width:100%;max-height:390px;object-fit:contain;border-radius:14px;background:#fff}.product-panel h2{margin-top:0}.product-panel p{font-size:17px}.tool-grid button{width:100%}details{margin:28px 0}summary{cursor:pointer;color:#78536a}details li{margin:9px 0;font-size:15px}footer{text-align:center;font-size:13px;color:#8b7369;padding:30px}dialog{max-width:680px;width:calc(100% - 32px);max-height:88vh;overflow:auto;border:1px solid #d1b897;border-radius:20px;background:#fffaf2;padding:26px}dialog::backdrop{background:#45253680}.error{color:#9b253d;font-size:16px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #9b6081;outline-offset:3px}[hidden]{display:none!important}textarea{min-height:130px}.family-row{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}.family-form{display:grid;gap:10px}.fine-print{font-size:14px}.inline-copy{margin:14px;width:calc(100% - 28px)}@media(min-width:1500px){body{background-size:1500px auto}}@media(max-width:760px){header{padding:20px}.nine-page{padding:0 20px 24px}.nine-hero{min-height:310px;width:62%;padding:18px 0 40px}.nine-hero .subtitle{font-size:18px}.nine-hero p:last-child{font-size:14px}.math-grid,.story-grid{grid-template-columns:1fr}.math-card{display:grid;grid-template-columns:1fr 1fr;gap:10px}.math-card h3,.math-card output{grid-column:1/-1}.math-card output{min-height:0}.search-grid{grid-template-columns:1fr}.age-result{grid-template-columns:1fr 1fr;gap:12px}.reading-card{padding:20px}h2{font-size:25px}th,td{padding:12px 10px}.classics p{display:block}.classics cite{display:block;text-align:right}.product-panel{padding:22px;grid-template-columns:1fr}.product-panel img{max-height:310px;order:-1}.tool-grid{gap:8px}.tool-grid button{font-size:14px;padding:10px 6px}.story-grid{gap:12px}.story{padding:18px}.quiet{font-size:13px}.birth-fields{gap:8px}.birth-fields select{padding:10px 6px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

/* Nine Content R1: scoped additions; existing controls retained. */
.nine-section-nav{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 24px}.nine-section-nav a{border:1px solid var(--line);border-radius:30px;padding:8px 16px;background:#fffaf2;text-decoration:none;font-size:16px}.nine-two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.nine-process{list-style:none;counter-reset:step;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding:0}.nine-process li{counter-increment:step;border:1px solid var(--line);border-radius:14px;padding:20px;background:#fffdf8}.nine-process li:before{content:counter(step,decimal-leading-zero);color:var(--gold);font-size:26px;font-family:Georgia,serif}.nine-process h3{font-size:21px;margin:8px 0}.nine-process p{font-size:16px}.nine-hook{border-left:3px solid var(--gold);padding:12px 16px;background:#fff3db;border-radius:0 10px 10px 0}#nine-faq details{margin:0;border-top:1px solid var(--line);padding:16px 0}#nine-faq summary{font-size:18px}#nine-faq p{font-size:16px}.nine-page section[id]{scroll-margin-top:24px}.nine-page caption{text-align:left;font-size:15px;padding:12px 0}.nine-page .table-scroll{max-width:100%}@media(max-width:1100px){.nine-process{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:600px){.nine-two,.nine-process{grid-template-columns:1fr}.nine-section-nav{display:grid;grid-template-columns:1fr 1fr}.nine-section-nav a{text-align:center;padding:10px 6px}.nine-section-nav a:last-child{grid-column:1/-1}.nine-process li{padding:18px}.nine-page h2{overflow-wrap:anywhere}}
