.guide-shell{width:min(1080px,calc(100% - 64px));margin:auto}.guide-hero{background:#e9eee4;border-bottom:1px solid #d8e2d6;padding:35px 0 72px}.crumb{font-size:12px;color:#6c7f70;margin-bottom:56px}.crumb a{text-decoration:underline;text-underline-offset:3px}.crumb span{padding:0 8px;color:#9bab9b}.guide-hero h1{font-size:clamp(42px,6vw,72px);margin:0 0 24px}.guide-hero h1 em{color:#526f58}.guide-lede{font-size:18px;line-height:1.6;max-width:680px;color:#53675a;margin:0}.guide-meta{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:12px;color:#65776a;margin-top:27px}.guide-layout{display:grid;grid-template-columns:minmax(0,760px) 225px;gap:75px;align-items:start;padding:70px 0 100px}.guide-article{min-width:0}.guide-article section{margin-top:64px}.guide-article h2{font-size:clamp(29px,3.4vw,40px)}.guide-article h3{font-size:19px;margin:0 0 8px}.guide-article p,.guide-article li{font-size:16px;line-height:1.75;color:#4e6155}.guide-article a:not(.button){color:#234e38;text-decoration:underline;text-underline-offset:3px}.guide-article li{padding-left:4px;margin:0 0 15px}.guide-article strong{color:#183a2a}.guide-article ol,.guide-article ul{padding-left:24px}.key-point{background:#eaf0de;border:1px solid #dce6d6;border-radius:14px;padding:28px}.key-point p:last-child{color:#2c4534;font-size:17px;line-height:1.7;margin:0}.table-scroll{overflow-x:auto;border:1px solid #dbe2d8;border-radius:12px;background:white;margin:24px 0 14px}table{width:100%;border-collapse:collapse;min-width:620px;font-size:13px;line-height:1.55;text-align:left}th,td{vertical-align:top;padding:17px;border-bottom:1px solid #e6ebe4}thead th{background:#f4f6f0;color:#607465;font-size:11px;letter-spacing:.05em;text-transform:uppercase}tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}tbody th{color:#183a2a;min-width:130px}tbody th span{font-weight:400;color:#718074}.guide-article .citation{font-size:12px;color:#718074}.math-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:22px 0}.math-cards>div{background:#fff;border:1px solid #dce4da;border-radius:12px;padding:22px}.math-cards span{display:block;font-size:10px;letter-spacing:.09em;color:#758a79;font-weight:700}.math-cards strong{display:block;font:38px/1.3 var(--serif);margin-top:8px}.math-cards p{font-size:12px;margin:6px 0 0}.example-cta{display:flex;justify-content:space-between;gap:24px;padding:27px;background:#e8efdd;border-radius:14px;margin-top:28px}.example-cta p{font-size:14px;margin-bottom:16px}.example-cta-icon{width:42px;height:42px;display:grid;place-items:center;border:1px solid #b9cbb1;border-radius:50%;flex:none}.example-status{color:#913b2f!important;font-size:12px!important;margin:10px 0 0!important}.editorial-note{border-top:1px solid #dce4da;padding-top:35px}.editorial-note p{font-size:14px}.guide-aside{position:sticky;top:26px}.aside-card{background:#fff;border:1px solid #e0e7dd;border-radius:14px;padding:22px}.aside-card a{display:block;padding:10px 0;color:#586c5e;font-size:13px}.aside-card a:hover{text-decoration:underline}.aside-card .aside-bottom{border-top:1px solid #e4ebe2;margin-top:10px;padding-top:18px;color:#224d36;font-weight:700}.aside-note{font-size:12px;color:#7b8b7e;padding:0 10px}.preset-note{margin:15px 0 0;padding:12px 16px;border-left:3px solid #8ca969;background:#eef3e5;color:#405c45;font-size:13px}.study{margin-top:16px;background:#fff;border:1px solid #dce3d9;border-radius:14px;padding:22px 26px}.study summary{list-style:none;display:flex;justify-content:space-between;cursor:pointer;font-size:18px;font-weight:700}.study summary::-webkit-details-marker{display:none}.study summary small{display:block;font-size:10px;letter-spacing:.1em;color:#819183;margin-bottom:4px}.study-body{max-width:580px}.study-body p{font-size:13px;color:#65746a}.study-body label:not(.consent){display:block;font-size:13px;font-weight:650;margin:16px 0 6px}.study-body select{width:100%;border:1px solid #cdd9ce;border-radius:9px;background:#fff;padding:12px;min-height:48px}.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;line-height:1.55;margin-top:18px}.consent input{margin-top:4px;flex:none}.study-body button{margin-top:18px}.study-status{min-height:1.5em}.study[hidden],.preset-note[hidden]{display:none}@media(max-width:800px){.guide-shell{width:min(100% - 36px,700px)}.guide-layout{grid-template-columns:1fr;gap:20px;padding:45px 0 70px}.guide-aside{position:static;grid-row:1}.aside-card{display:flex;gap:12px;align-items:center;overflow-x:auto;white-space:nowrap}.aside-card .eyebrow{display:none}.aside-card a{font-size:12px}.aside-card .aside-bottom{margin:0;border:0;padding:10px 0}.aside-note{display:none}.guide-hero{padding-bottom:50px}.crumb{margin-bottom:36px}.guide-article section{margin-top:50px}}@media(max-width:500px){.guide-hero h1{font-size:41px}.guide-lede{font-size:16px}.guide-meta{display:grid;gap:7px}.key-point{padding:20px}.key-point p:last-child{font-size:15px}.math-cards{grid-template-columns:1fr}.example-cta{padding:21px}.example-cta .button{font-size:12px;gap:12px}.study{padding:20px}.guide-article p,.guide-article li{font-size:15px}}
/* Contain horizontally scrollable plan table and contents on narrow screens. */
.guide-layout > *{min-width:0}.guide-aside,.aside-card,.table-scroll{max-width:100%;min-width:0}
@media(max-width:800px){.guide-layout{grid-template-columns:minmax(0,1fr)}}

/* Article shares the same quiet hierarchy and source-first comparison. */
.guide-shell{width:min(1190px,calc(100% - 64px))}.guide-hero{background:#f1efea;border-color:#e3dfd8;padding:38px 0 76px}.crumb{font-size:13px;color:#77716a}.crumb span{color:#aaa49b}.guide-hero h1 em{color:inherit}.guide-lede{color:#55524d;font-size:19px}.guide-meta{color:#746e67;font-size:13px}.guide-layout{grid-template-columns:minmax(0,800px) 225px;gap:80px}.guide-article p,.guide-article li{color:#514e48}.guide-article a:not(.button){color:#292824}.guide-article strong{color:#292824}.key-point{background:#f0eee9;border-color:#e4e0d9;border-radius:10px}.key-point p:last-child{color:#36332e}.table-scroll{border-color:#dedad3;border-radius:8px}thead th{background:#f3f1ec;color:#615d56;font-size:12px}th,td{border-color:#e5e1db;font-size:14px}tbody th{color:#292824}.guide-article .citation{font-size:13px;color:#6e6962}.math-cards>div{border-color:#dedad3;border-radius:8px}.math-cards span{font-size:12px;color:#726c64}.math-cards strong{font:450 38px/1.2 var(--sans);font-variant-numeric:tabular-nums}.math-cards p{font-size:14px}.example-cta{background:#f0eee9;border-radius:10px}.example-cta p{font-size:15px}.example-cta-icon{border-color:#c8c2b8}.editorial-note{border-color:#dedad3}.aside-card{border-color:#e1ddd7;border-radius:10px}.aside-card a{color:#5e5952;font-size:14px}.aside-card .aside-bottom{border-color:#e1ddd7;color:#292824}.aside-note{color:#716d67;font-size:13px}.preset-note{border-color:#b0854d;background:#f5f0e8;color:#51483d}
@media(max-width:800px){.guide-shell{width:calc(100% - 40px)}.guide-layout{grid-template-columns:minmax(0,1fr);gap:24px}.aside-card a{font-size:13px}.guide-hero{padding-bottom:55px}}
@media(max-width:500px){.guide-shell{width:calc(100% - 32px)}.guide-hero h1{font-size:41px}.guide-lede{font-size:17px}.guide-meta{font-size:13px}.math-cards{grid-template-columns:1fr}.example-cta .button{font-size:14px}}