:root{--paper:#f8f7f3;--ink:#20201e;--muted:#6d6b64;--line:#d7d3ca;--soft:#eeece6;--sage:#e2e8df;--lavender:#e5e4eb;--accent:#d26543;--dark:#202a25;--rounded:ui-rounded,"SF Pro Rounded","Avenir Next","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#e8e6e1;color:var(--ink);font-family:var(--rounded);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a,button{-webkit-tap-highlight-color:transparent}.progress{position:fixed;z-index:50;left:0;top:0;height:3px;background:var(--accent);transition:width .12s linear}.newsletter{width:min(100%,1080px);margin:0 auto;overflow:hidden;background:var(--paper)}.masthead,.reading-plan,.section,footer{padding-left:clamp(26px,7vw,76px);padding-right:clamp(26px,7vw,76px)}.masthead{padding-top:44px}.brand-row{display:flex;justify-content:space-between;gap:20px}.brand,.brand-row{align-items:center}.brand{display:inline-flex;gap:11px;color:var(--ink);font-size:16px;font-weight:700;text-decoration:none}.brand-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:11px;background:var(--accent);color:white;font-size:12px;font-weight:800}.issue{color:var(--muted);font-size:12.5px;letter-spacing:.04em}.card-kicker,.eyebrow,.mini-label,.section-label{color:var(--accent);font-size:12.5px;line-height:1.45;font-weight:750;letter-spacing:.08em;text-transform:uppercase}.hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(260px,.62fr);gap:66px;align-items:center;padding:76px 0 54px}.hero-copy h1{max-width:580px;margin:18px 0 24px;font-size:clamp(40px,5.2vw,52px);line-height:1.15;letter-spacing:-.03em;font-weight:670}.dek{max-width:560px;margin:0;color:#41413d;font-size:clamp(19px,2.1vw,22px);line-height:1.65;font-weight:550}.book-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}.book-meta span{padding:9px 13px;border-radius:999px;background:var(--soft);color:var(--muted);font-size:13px}.cover-card{width:100%;margin:0}.cover-backdrop{position:relative;display:grid;place-items:center;padding:22px;border:1px solid #cfcbc1;border-radius:24px;background:#edeae2;box-shadow:12px 14px 0 #ddd9cf}.cover-backdrop:before{content:"";position:absolute;inset:10px;border:1px solid rgba(32,32,30,.08);border-radius:17px;pointer-events:none}.cover-mat{position:relative;z-index:1;width:100%;padding:9px;background:#fff;border:1px solid #c9c5bb;box-shadow:0 14px 34px rgba(36,34,29,.17)}.cover-mat img{width:100%;height:auto;display:block}.cover-card figcaption{margin-top:17px;color:var(--muted);text-align:center;font-size:12px}.cover-card a{color:inherit;text-underline-offset:3px}.hero-summary{display:grid;grid-template-columns:170px 1fr;gap:28px;align-items:center;padding:27px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.hero-summary span{color:var(--accent);font-size:13px;font-weight:750}.hero-summary p{margin:0;font-size:19px;line-height:1.55;font-weight:630}.contents{position:sticky;z-index:20;top:0;display:flex;align-items:center;gap:24px;padding:15px clamp(26px,7vw,76px);overflow-x:auto;border-bottom:1px solid var(--line);background:rgba(248,247,243,.94);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);white-space:nowrap}.contents span{margin-right:auto;color:var(--accent);font-size:12px;font-weight:750}.contents a{color:var(--ink);font-size:12.5px;text-decoration:none}.contents a:hover{color:var(--accent)}.section{padding-top:86px;padding-bottom:86px;border-bottom:1px solid var(--line)}.section-label{margin-bottom:26px}.section-heading{margin-bottom:42px}.split-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(270px,.72fr);gap:58px;align-items:start}h2{max-width:660px;margin:0;font-size:clamp(30px,3.7vw,38px);line-height:1.3;letter-spacing:-.025em;font-weight:660}.split-heading>p{max-width:440px;margin:5px 0 0;color:var(--muted);font-size:16.5px;line-height:1.8}h3{letter-spacing:-.012em}.plan-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.plan-stats div{padding:22px 24px;border-radius:20px;background:var(--soft)}.plan-stats strong{display:block;font-size:36px;line-height:1}.plan-stats span{display:block;margin-top:10px;color:var(--muted);font-size:14px}.discipline-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.discipline-row>span{display:inline-flex;gap:9px;align-items:center;padding:9px 13px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:13px}.discipline-row small{min-width:21px;height:21px;display:grid;place-items:center;border-radius:50%;background:var(--soft);font-size:11px}.discipline-row .active{border-color:var(--dark);background:var(--dark);color:white}.discipline-row .active small{background:rgba(255,255,255,.15)}.reason-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px}.reason-grid>div{min-height:250px;display:flex;flex-direction:column;justify-content:space-between;padding:26px;border-radius:24px;background:var(--sage)}.reason-grid>div:nth-child(2){background:var(--lavender)}.reason-grid>div:nth-child(3){background:#eadfd8}.reason-grid>div>span{color:var(--muted);font-size:13px}.reason-grid h3{margin:0 0 10px;font-size:20px;line-height:1.35}.reason-grid p{margin:0;color:#4d4c47;font-size:15px;line-height:1.75}.context-section{background:#f5f3ee}.influence-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:18px;align-items:stretch}.book-facts{display:flex;flex-direction:column;padding:30px;border:1px solid var(--line);border-radius:24px;background:var(--paper)}.book-facts h3{margin:20px 0 14px;font-size:24px;line-height:1.42}.book-facts>p{margin:0;color:var(--muted);font-size:15px;line-height:1.75}.book-facts dl{display:grid;gap:0;margin:auto 0 0;padding-top:26px}.book-facts dl div{display:flex;justify-content:space-between;gap:18px;padding:12px 0;border-top:1px solid var(--line)}.book-facts dt{color:var(--muted);font-size:13px}.book-facts dd{margin:0;font-size:14px;font-weight:700;text-align:right}.influence-copy{display:grid;gap:14px}.influence-copy>div{padding:27px;border-radius:22px;background:var(--sage)}.influence-copy>div:nth-child(2){background:var(--lavender)}.influence-copy h3{margin:16px 0 10px;font-size:19px;line-height:1.45}.influence-copy p{margin:0;color:#51504b;font-size:15px;line-height:1.75}.endorsement-block{margin-top:18px;padding:30px;border:1px solid var(--line);border-radius:24px;background:var(--paper)}.endorsement-heading{display:grid;grid-template-columns:.55fr 1fr;gap:34px;align-items:end;padding-bottom:24px;border-bottom:1px solid var(--line)}.endorsement-heading h3{margin:0;font-size:22px;line-height:1.45}.endorsement-list{display:grid;grid-template-columns:repeat(3,1fr);gap:0}.endorsement-list>div{padding:24px 22px 12px 0}.endorsement-list>div+div{padding-left:22px;border-left:1px solid var(--line)}.endorsement-list strong{font-size:15px}.endorsement-list p{margin:9px 0 0;font-size:14px}.endorsement-list p,.source-note{color:var(--muted);line-height:1.7}.source-note{margin:18px 0 0;padding-top:18px;border-top:1px solid var(--line);font-size:12px}.source-note a{color:inherit;text-underline-offset:3px}.definition-card{margin-top:44px;padding:34px 36px;border-radius:26px;background:var(--dark);color:white}.quote-label{display:flex;justify-content:space-between;gap:20px;color:#b8cab9;font-size:12px;font-weight:700;letter-spacing:.06em}.quote-label small{color:#99a69e;letter-spacing:0;font-weight:500}.definition-card blockquote{margin:27px 0 20px}.definition-card blockquote p{margin:0}.definition-card blockquote p:first-child{max-width:800px;font-size:clamp(24px,3vw,30px);line-height:1.55;font-weight:630}.definition-card blockquote p+p{margin-top:18px;color:#d5ddd7;font-family:Georgia,Times New Roman,serif;font-size:clamp(18px,2.2vw,22px);line-height:1.6}.definition-card>small{display:block;max-width:760px;padding-top:18px;border-top:1px solid rgba(255,255,255,.16);color:#bfc8c1;font-size:14px;line-height:1.75}.overview{background:#eeece6}.part-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.part-grid>div{min-height:260px;display:flex;flex-direction:column;justify-content:space-between;padding:26px;border:1px solid var(--line);border-radius:22px;background:var(--paper)}.part-grid span{color:var(--accent);font-size:12px;font-weight:700}.part-grid h3{margin:0 0 12px;font-size:19px;line-height:1.45}.part-grid p{margin:0;color:var(--muted);font-size:15px;line-height:1.75}.chapter-intro{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-top:48px;padding-bottom:16px}.chapter-intro h3{margin:0;font-size:23px}.chapter-intro p{margin:0;color:var(--muted);font-size:13px}.chapter-list{border-top:1px solid var(--ink)}.chapter-list details{border-bottom:1px solid var(--line)}.chapter-list summary{list-style:none;display:grid;grid-template-columns:58px 1fr 28px;align-items:center;padding:21px 0;cursor:pointer}.chapter-list summary::-webkit-details-marker{display:none}.chapter-list summary span{color:var(--accent);font-size:13px}.chapter-list summary strong{font-size:18px;font-weight:650}.chapter-list summary em{color:var(--muted);font-size:20px;font-style:normal;transition:transform .2s}.chapter-list details[open] summary em{transform:rotate(45deg)}.chapter-body{margin:-2px 0 25px 58px;padding-right:60px}.chapter-body p{max-width:760px;margin:0;color:#55534e;font-size:15.5px;line-height:1.85}.chapter-body small{display:inline-block;margin-top:14px;padding:8px 11px;border-radius:8px;background:var(--paper);color:var(--accent);font-size:12px;line-height:1.45}.concept-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.concept-card{min-height:410px;display:flex;flex-direction:column;padding:28px;border:1px solid transparent;border-radius:24px;background:var(--soft)}.concept-card:nth-child(2),.concept-card:nth-child(3){background:var(--sage)}.concept-top{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;letter-spacing:.04em}.concept-top i{font-style:normal}.concept-main{margin-top:38px}.concept-card h3{margin:0 0 13px;font-size:25px}.concept-main>strong{display:block;font-size:16px;line-height:1.55}.concept-main>p{margin:13px 0 0;color:#51504b;font-size:15px;line-height:1.78}.concept-lens{display:grid;grid-template-columns:68px 1fr;gap:10px;margin-top:auto;padding-top:20px;border-top:1px solid rgba(28,28,26,.12)}.concept-lens b{color:var(--accent);font-size:12px}.concept-lens span{color:#43423e;font-size:14px;line-height:1.65}.system-map-section{background:#f4f2ed}.toolkit-heading{display:grid;grid-template-columns:.5fr 1fr;gap:32px;align-items:end;margin-bottom:20px;padding-bottom:17px;border-bottom:1px solid var(--ink)}.toolkit-heading h3{margin:0;font-size:22px;line-height:1.45}.toolkit-heading-spaced{margin-top:54px}.strength-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.strength-grid article{min-height:310px;display:flex;flex-direction:column;padding:26px;border-radius:23px;background:var(--sage)}.strength-grid article:nth-child(2){background:var(--lavender)}.strength-grid article:nth-child(3){background:#eadfd8}.strength-grid article>span{color:var(--accent);font-size:13px;font-weight:700}.strength-grid h3{margin:34px 0 12px;font-size:22px}.strength-grid p{margin:0;color:#4c4b46;font-size:15px;line-height:1.75}.strength-grid small{display:block;margin-top:auto;padding-top:18px;border-top:1px solid rgba(28,28,26,.13);color:#54534e;font-size:13px;line-height:1.65}.trap-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.trap-grid article{min-height:220px;display:flex;flex-direction:column;padding:24px;border:1px solid var(--line);border-radius:20px;background:var(--paper)}.trap-grid article>div{display:flex;align-items:baseline;gap:16px}.trap-grid article>div span{color:var(--accent);font-size:12px;font-weight:700}.trap-grid h3{margin:0;font-size:19px}.trap-grid p{margin:28px 0 0;color:#4d4c47;font-size:15px;line-height:1.7}.trap-grid small{display:grid;grid-template-columns:40px 1fr;gap:9px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:13px;line-height:1.6}.trap-grid small b{color:var(--accent)}.leverage-stack{display:grid;gap:10px}.leverage-stack article{display:grid;grid-template-columns:150px 1.2fr 1fr;gap:24px;align-items:center;padding:24px;border-radius:20px;background:var(--paper);border:1px solid var(--line)}.leverage-level span{color:var(--accent);font-size:12px;font-weight:750}.leverage-level h3{margin:7px 0 0;font-size:17px}.leverage-items{display:flex;flex-wrap:wrap;gap:7px}.leverage-items span{padding:7px 9px;border-radius:8px;background:var(--soft);color:#4c4b46;font-size:12px}.leverage-stack p{margin:0;line-height:1.65}.leverage-stack p,.toolkit-note{color:var(--muted);font-size:13px}.toolkit-note{margin:16px 0 0;line-height:1.7}.dance-section{background:var(--lavender)}.dance-quote{margin:0 0 18px;padding:31px 34px;border-radius:24px;background:var(--dark);color:white}.dance-quote span{color:#b8cab9;font-size:12px;font-weight:700;letter-spacing:.06em}.dance-quote p{max-width:780px;margin:18px 0 0;font-size:clamp(24px,3vw,30px);line-height:1.55;font-weight:620}.dance-intro{display:grid;grid-template-columns:.55fr 1fr;gap:32px;align-items:start;padding:27px 30px;border-radius:22px;background:rgba(248,247,243,.72)}.dance-intro h3{margin:0;font-size:20px}.dance-intro p{margin:0;color:#4e4d48;font-size:15px;line-height:1.8}.dance-list{margin-top:32px;border-top:1px solid var(--ink)}.dance-list details{border-bottom:1px solid rgba(28,28,26,.2)}.dance-list summary{list-style:none;display:grid;grid-template-columns:58px 1fr 28px;align-items:center;padding:21px 0;cursor:pointer}.dance-list summary::-webkit-details-marker{display:none}.dance-list summary span{color:var(--accent);font-size:13px;font-weight:700}.dance-list summary strong{font-size:17px;font-weight:650}.dance-list summary em{color:var(--muted);font-size:20px;font-style:normal;transition:transform .2s}.dance-list details[open] summary em{transform:rotate(45deg)}.dance-body{margin:-1px 0 25px 58px;padding-right:70px}.dance-body p{max-width:760px;margin:0;color:#4d4c47;font-size:15px;line-height:1.8}.dance-body small{display:grid;grid-template-columns:62px 1fr;gap:10px;max-width:760px;margin-top:14px;padding:15px 17px;border-radius:13px;background:var(--paper);color:#55534e;font-size:13px;line-height:1.65}.dance-body small b{color:var(--accent)}.case-section{background:#f4f2ed}.inventory-definition{display:grid;grid-template-columns:165px 1fr;gap:28px;align-items:start;margin-bottom:18px;padding:28px;border:1px solid var(--line);border-radius:22px;background:var(--paper)}.inventory-definition p{margin:0;color:#474640;font-size:16px;line-height:1.8}.loop-card{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr auto 1fr;gap:9px;align-items:center;padding:28px;border-radius:24px;background:var(--lavender);overflow-x:auto}.loop-step{min-width:125px;min-height:125px;display:flex;flex-direction:column;justify-content:center;padding:17px;border-radius:18px;background:var(--paper);text-align:center}.loop-step span{color:var(--muted);font-size:11px}.loop-step strong{margin-top:9px;font-size:14px;line-height:1.35}.loop-step small{margin-top:6px;color:var(--muted);font-size:12px;line-height:1.4}.loop-step.delay{background:var(--accent);color:white}.loop-step.delay small,.loop-step.delay span{color:white}.arrow{color:var(--accent);font-size:18px}.delay-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}.delay-grid>div{padding:22px;border-radius:19px;background:var(--soft)}.delay-grid span{color:var(--accent);font-size:12px}.delay-grid strong{display:block;margin-top:24px;font-size:15px}.delay-grid p{margin:8px 0 0;color:var(--muted);font-size:13.5px;line-height:1.65}.case-conclusion{display:grid;grid-template-columns:145px 1fr;gap:26px;align-items:start;margin-top:14px;padding:27px;border-radius:22px;background:var(--dark);color:white}.case-conclusion span{color:#b8cab9;font-size:12px;font-weight:700;letter-spacing:.05em}.case-conclusion p{margin:-2px 0 0;font-size:16px;line-height:1.7;font-weight:560}.analogy-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}.analogy-grid article{padding:28px;border:1px solid var(--line);border-radius:22px;background:var(--paper)}.analogy-grid h3{margin:24px 0 10px;font-size:18px;line-height:1.45}.analogy-grid p{margin:0;color:var(--muted);font-size:15px;line-height:1.75}.management{background:var(--dark);color:white}.management .section-label{color:#b8cab9}.management-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.7fr);gap:58px;align-items:end;margin-bottom:42px}.management-heading p{margin:0 0 3px;color:#c9cec9;font-size:16px;line-height:1.8}.management-list{border-top:1px solid rgba(255,255,255,.3)}.management-list article{display:grid;grid-template-columns:58px 1fr;gap:24px;padding:29px 0;border-bottom:1px solid rgba(255,255,255,.18)}.management-list article>b{color:#b8cab9;font-size:13px}.management-list h3{margin:0 0 9px;font-size:19px}.management-list p{max-width:760px;margin:0;color:#c9cec9;font-size:15px;line-height:1.75}.management-list small{display:block;margin-top:11px;color:#9fafa5;font-size:13px;line-height:1.65}.reflection-lead{display:grid;grid-template-columns:150px 1fr;gap:28px;align-items:start;padding:30px;border-radius:24px;background:var(--lavender)}.reflection-lead span{color:var(--accent);font-size:12px;font-weight:750;letter-spacing:.06em}.reflection-lead p{max-width:710px;margin:-4px 0 0;font-size:16px;line-height:1.8;font-weight:570}.reflection-list{margin-top:18px;border-top:1px solid var(--ink)}.reflection-list article{display:grid;grid-template-columns:58px 1fr;gap:24px;padding:24px 0;border-bottom:1px solid var(--line)}.reflection-list article>b{color:var(--accent);font-size:13px}.reflection-list span{display:block;font-size:18px;font-weight:650}.reflection-list p{margin:8px 0 0;color:var(--muted);font-size:15px;line-height:1.75}.practice-card{margin-top:18px;padding:30px;border-radius:24px;background:var(--sage)}.practice-card>span{color:var(--muted);font-size:12px;font-weight:700;letter-spacing:.06em}.practice-card ol{margin:20px 0 0;padding-left:22px}.practice-card li{padding:7px 0 7px 8px;font-size:15px;line-height:1.75}.reading-plan{padding-top:44px;padding-bottom:44px;border-bottom:1px solid var(--line)}.reading-plan summary{list-style:none;display:flex;justify-content:space-between;gap:20px;cursor:pointer}.reading-plan summary::-webkit-details-marker{display:none}.reading-plan summary span{font-size:16px;font-weight:650}.reading-plan summary em{color:var(--muted);font-size:13px;font-style:normal}.track-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px 44px;margin-top:38px;padding-top:32px;border-top:1px solid var(--line)}.track-grid>div>span{color:var(--accent);font-size:12px;font-weight:700}.track-grid ul{margin:13px 0 0;padding:0;list-style:none}.track-grid li{padding:5px 0;color:var(--muted);font-size:14px;line-height:1.5}footer{display:grid;grid-template-columns:1fr 1fr auto;gap:24px;align-items:center;padding-top:38px;padding-bottom:42px}footer p{color:var(--muted);font-size:13px}footer>a:last-child{color:var(--ink);font-size:12px;font-weight:650;text-decoration:none}.footer-brand{font-size:14px}.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px;font-size:10px}@media (max-width:760px){.masthead{padding-top:30px}.issue{display:none}.hero-grid{grid-template-columns:1fr;gap:42px;padding:62px 0 44px}.hero-copy h1{font-size:clamp(38px,11vw,48px)}.cover-card{max-width:310px}.cover-backdrop{box-shadow:8px 10px 0 #ddd9cf}.hero-summary{grid-template-columns:1fr;gap:8px}.contents span{display:none}.contents{gap:20px}.section{padding-top:66px;padding-bottom:66px}.management-heading,.split-heading{grid-template-columns:1fr;gap:18px}.plan-stats{gap:8px}.plan-stats div{padding:17px}.plan-stats strong{font-size:29px}.delay-grid,.part-grid,.reason-grid,.strength-grid,.trap-grid{grid-template-columns:1fr}.reason-grid>div{min-height:210px}.influence-grid{grid-template-columns:1fr}.book-facts dl{margin-top:24px}.endorsement-heading{gap:12px}.endorsement-heading,.endorsement-list{grid-template-columns:1fr}.endorsement-list>div{padding:20px 0}.endorsement-list>div+div{padding-left:0;border-top:1px solid var(--line);border-left:0}.quote-label{flex-direction:column;gap:8px}.definition-card{padding:28px}.part-grid>div{min-height:235px}.chapter-intro{align-items:start;flex-direction:column;gap:8px}.chapter-body{margin-left:0;padding-right:0}.analogy-grid,.concept-grid{grid-template-columns:1fr}.concept-card{min-height:390px}.dance-intro,.toolkit-heading{grid-template-columns:1fr;gap:10px}.strength-grid article{min-height:280px}.leverage-stack article{grid-template-columns:1fr;gap:16px}.dance-quote{padding:27px}.dance-body{margin-left:0;padding-right:0}.case-conclusion,.inventory-definition,.reflection-lead{grid-template-columns:1fr;gap:12px}.loop-card{grid-template-columns:repeat(9,max-content)}.track-grid,footer{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}