*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:75px}body{margin:0;background:#f4f1eb;color:#253630;font:16px/1.85 -apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif}a{color:inherit}header{background:#fffdf9;border-bottom:1px solid #ddd9d0;position:sticky;top:0;z-index:2}.nav{max-width:1020px;margin:auto;padding:14px 28px;display:flex;justify-content:space-between;align-items:center;gap:16px}.nav a{font-size:14px}main{max-width:1020px;margin:auto;padding:0 28px}.hero{padding:66px 0 42px}.eyebrow{font-size:13px;letter-spacing:3px;color:#69796e}h1{font-size:clamp(36px,7vw,64px);line-height:1.2;letter-spacing:-1px;margin:20px 0 12px}.subtitle{font-size:20px;margin:0 0 28px}.meta{color:#66746d;font-size:14px}.vision{font-size:21px;border-left:3px solid #a63b31;padding:10px 20px;margin:30px 0 0}section{padding:36px 0;border-top:1px solid #d8dcd3}h2{font-size:27px;line-height:1.5;margin:0 0 24px}h3{font-size:18px;margin:26px 0 10px}p{margin:12px 0}strong{font-weight:650}.key{color:#a12823;font-weight:650;text-decoration:underline;text-decoration-color:#cba39b;text-underline-offset:5px;text-decoration-thickness:1px}.callout{border-left:3px solid #a63b31;background:#fffaf3;padding:16px 20px;margin:20px 0}.table-wrap{overflow-x:auto;margin:20px 0;border:1px solid #dddcd3;border-radius:10px}table{border-collapse:collapse;width:100%;min-width:560px;background:#fffdf9;text-align:left;font-size:14px}th,td{padding:14px 18px;border-bottom:1px solid #e9e5dc;vertical-align:top}th{background:#e8ece3;color:#294338;font-weight:650}tr:last-child td{border-bottom:0}.toc{display:flex;flex-wrap:wrap;gap:8px 18px;margin:28px 0;font-size:14px}.toc a{text-decoration:none;border-bottom:1px solid #9ca99d}fieldset{padding:24px;border:1px solid #d8dfd3;border-radius:12px;margin:22px 0;background:#fffdf9;min-width:0}legend{font-weight:650;padding:0 6px;font-size:17px}.choices{display:flex;gap:12px 24px;flex-wrap:wrap}.choice{display:flex;align-items:center;gap:8px;min-height:44px;cursor:pointer}.choice input{width:19px;height:19px;margin:0;accent-color:#315744}.hint{font-size:13px;color:#6d786f}input[type=text],input[type=password],textarea{font:inherit;width:100%;border:1px solid #a9b8a9;border-radius:7px;padding:11px;background:white}textarea{min-height:130px;resize:vertical}button,.btn{font:inherit;border:0;border-radius:7px;background:#315744;color:white;padding:11px 22px;cursor:pointer}button:disabled{opacity:.5}.secondary{background:#e6eadf;color:#315744}.other-row{display:flex;gap:8px;margin:10px 0}.other-row button{white-space:nowrap;padding:8px 12px}.form-footer{margin:20px 0}footer{max-width:1020px;margin:auto;padding:32px 28px;color:#6a766d;font-size:13px}#status{min-height:30px}article.response{background:#fffdf9;border:1px solid #d8dfd3;border-radius:12px;padding:24px;margin:18px 0;overflow-wrap:anywhere}.response h3{margin:0 0 12px}.response dt{font-weight:650;margin-top:16px}.response dd{margin:4px 0;white-space:pre-wrap}label.block{display:block;margin:16px 0 6px}[hidden]{display:none!important}@media(max-width:600px){main{padding:0 20px}.nav{padding:12px 20px}.hero{padding:38px 0 30px}section{padding:28px 0}h2{font-size:23px}fieldset{padding:16px}.choices{gap:6px 18px}.vision{font-size:18px;padding-left:14px}th,td{padding:12px}.subtitle{font-size:18px}}
/* Project identity and document hierarchy */
body{background:#f5f3ee;color:#293a35}header{background:#fcfbf7}.hero{position:relative;padding:56px 0 34px}.title-lockup{display:flex;align-items:baseline;flex-wrap:wrap;gap:12px 26px;margin:20px 0 24px}.title-lockup h1{font-family:"Songti SC","STSong","Noto Serif CJK SC",serif;font-size:clamp(48px,7.5vw,76px);font-weight:800;letter-spacing:2px;line-height:1.2;color:#234f45;margin:0}.document-title{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;font-size:clamp(21px,3vw,30px);font-weight:400;letter-spacing:4px;color:#8a6554;border-left:1px solid #c9bba9;padding-left:26px}.product-definition{font-size:clamp(19px,2.3vw,24px);line-height:1.75;max-width:770px;margin:0 0 18px;color:#344b42}.product-definition strong{font-weight:650;text-decoration:underline;text-decoration-color:#c3a480;text-underline-offset:7px}.subtitle{font-size:14px;letter-spacing:1px;color:#7c8275;margin:0 0 22px}.meta{font-size:13px}.toc{margin:28px 0 0;padding-top:22px;border-top:1px solid #dddcd1;gap:10px}.toc a{font-size:13px;border:1px solid #d8ded2;border-radius:6px;padding:7px 12px;background:#fcfbf7}.toc a:hover{background:#e7ede4;border-color:#91a58e}section{padding:40px 0}h2{font-size:25px;font-weight:650;letter-spacing:.5px;border-left:3px solid #8ba18b;padding-left:15px}h3{color:#375b4b}section>p{max-width:860px}section#feedback{border-top:2px solid #a8b79e}.key{color:#a3362c;text-decoration-color:#d5a79e}th{background:#e6ece3}@media(min-width:900px){main{max-width:1060px}section{padding:40px 12px}.hero{padding-left:12px;padding-right:12px}}@media(max-width:600px){.hero{padding:34px 0 28px}.title-lockup{gap:10px 16px;margin:18px 0 22px}.title-lockup h1{font-size:48px}.document-title{font-size:21px;letter-spacing:2px;padding-left:16px}.product-definition{font-size:19px}.subtitle{font-size:12px;letter-spacing:0}.meta{font-size:12px}.toc a{padding:6px 10px}h2{font-size:23px;padding-left:12px}section{padding:30px 0}}@media(max-width:350px){.title-lockup{display:block}.document-title{display:block;border-left:0;padding:12px 0 0}.title-lockup h1{font-size:44px}}

/* Keep question legends in the card flow, clear of its border. */
#survey legend{float:left;width:100%;padding:0;margin:0 0 12px;line-height:1.65}
#survey legend+*{clear:both}
#survey fieldset>.hint{margin:0 0 12px}
@media(max-width:600px){#survey legend{font-size:16px}}

.chapter-nav{margin-top:26px;border:1px solid #d8ded2;border-radius:8px;background:#fcfbf7}.chapter-nav summary{padding:12px 16px;font-weight:600;cursor:pointer;min-height:46px}.chapter-nav summary span{font-size:12px;color:#748074;font-weight:400;margin-left:12px}.chapter-nav nav{padding:4px 16px 16px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px 16px}.chapter-nav nav a{display:block;padding:9px 0;border-bottom:1px solid #e5e7de;text-decoration:none;font-size:14px;line-height:1.6}.chapter-nav nav a:hover{color:#a3362c}.chapter-nav[open] summary{border-bottom:1px solid #e5e7de;margin-bottom:8px}@media(max-width:600px){.chapter-nav nav{grid-template-columns:1fr 1fr;gap:2px 14px}.chapter-nav nav a{font-size:13px}.chapter-nav summary{padding:10px 14px}}@media(max-width:350px){.chapter-nav summary span{margin-left:6px;font-size:11px}}

.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:22px 0}.feature-grid article{padding:22px;border:1px solid #d8ded2;border-radius:10px;background:#fcfbf7}.feature-grid h3{margin:0 0 10px}.feature-grid p{margin:0}.compact{grid-template-columns:repeat(3,minmax(0,1fr))}.workflow{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}.workflow span{padding:10px 14px;border-radius:6px;background:#e6ece3;font-size:14px}.workflow span:not(:last-child)::after{content:" →";color:#768778;margin-left:8px}a:focus-visible,summary:focus-visible{outline:2px solid #315744;outline-offset:4px}@media(max-width:600px){.feature-grid,.compact{grid-template-columns:1fr;gap:12px}.feature-grid article{padding:18px}.title-lockup .document-title{font-size:20px;letter-spacing:1px}.workflow{display:grid;grid-template-columns:1fr 1fr}.workflow span{padding:10px;font-size:13px}.chapter-nav nav{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.title-lockup{display:block}.title-lockup .document-title{display:block;border-left:0;padding-left:0;margin-top:10px;font-size:22px}}
