:root{--ink:#342b29;--muted:#655a53;--paper:#fcfaf6;--soft:#efe8df;--red:#943e30;--line:#d8cabe;--serif:'Yu Mincho','Hiragino Mincho ProN','Noto Serif JP',serif;--sans:'Hiragino Kaku Gothic ProN','Yu Gothic',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.9 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:5px}a,summary{touch-action:manipulation}a:focus-visible,summary:focus-visible{outline:3px solid var(--red);outline-offset:5px}img{display:block;max-width:100%;height:auto}p{margin:0 0 1.3rem}h1,h2,h3{margin:0;font-weight:500}h1,h2{font-family:var(--serif)}h2{font-size:clamp(30px,3.5vw,48px);line-height:1.65;letter-spacing:.07em;margin:0 0 26px}h3{font-size:19px;line-height:1.65}section[id],details[id]{scroll-margin-top:100px}.header{height:96px;padding:0 5.5%;display:flex;align-items:center;justify-content:space-between;background:var(--paper);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:24px;text-decoration:none}.brand-mark{font-family:var(--serif);font-size:35px;letter-spacing:.04em;white-space:nowrap}.brand-mark span{font-family:Georgia,serif;color:var(--red);margin-left:3px}.brand-sub{font-size:12px;line-height:1.7;letter-spacing:.1em;border-left:1px solid var(--line);padding-left:23px}.header nav{display:flex;gap:30px;align-items:center;font-size:14px}.header nav a{text-decoration:none}.nav-cta{border-bottom:1px solid var(--red);padding:8px 0}.nav-cta span{margin-left:18px}.hero{display:grid;grid-template-columns:48% 52%;min-height:650px;max-width:1680px;margin:auto;overflow:hidden}.hero-copy{padding:70px 4% 55px 11.5%;position:relative;z-index:1}.eyebrow{font-size:13px;letter-spacing:.18em;font-weight:600;color:var(--red);margin-bottom:24px}.hero h1{font-size:clamp(42px,4.5vw,70px);line-height:1.55;letter-spacing:.08em;margin-bottom:25px;white-space:nowrap}.accent{color:var(--red)}.hero-lead{line-height:2.2;color:var(--muted);margin-bottom:32px}.hero-art{position:relative;min-width:0;background:#eee4d2}.hero-art>img{width:100%;height:100%;object-fit:cover;object-position:65% center;position:absolute}.hero-art:before{content:'';position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(252,250,246,.32),transparent 18%)}.vertical-note{position:absolute;right:35px;top:40px;writing-mode:vertical-rl;letter-spacing:.3em;font-family:var(--serif);font-size:18px;z-index:2}.hero-seal{position:absolute;bottom:60px;left:-46px;border:1px solid var(--red);background:var(--paper);width:135px;height:135px;border-radius:50%;display:flex;align-items:center;justify-content:center;gap:10px;color:var(--red);z-index:2}.hero-seal strong{font:70px/1 Georgia,serif}.hero-seal span{font-size:13px;line-height:1.7}.art-caption{position:absolute;right:25px;bottom:10px;font-size:11px;letter-spacing:.13em;margin:0}.button{min-height:58px;display:inline-flex;align-items:center;justify-content:space-between;gap:22px;padding:16px 25px;text-decoration:none;font-size:15px;line-height:1.6;transition:background .2s,transform .2s}.button:hover{transform:translateY(-2px)}.primary{color:white;background:var(--red)}.primary:hover{background:#713024}.micro{font-size:12px;line-height:1.9;color:var(--muted);margin-top:14px;margin-bottom:0}.principles{background:var(--ink);color:var(--paper);display:flex;justify-content:center;gap:8%;padding:21px 5%;font-size:14px;letter-spacing:.07em}.principles b{font:italic 19px Georgia,serif;color:#d4b89e;margin-right:14px}.section{padding:95px max(6%,calc((100vw - 1240px)/2));}.intro{text-align:center;padding-top:86px;padding-bottom:85px}.intro p:last-child{color:var(--muted)}.practice{background:var(--soft);display:grid;grid-template-columns:36% 1fr;gap:7%}.practice-heading{align-self:start;position:sticky;top:30px}.practice-heading>p{color:var(--muted)}.practice-heading .eyebrow{color:var(--red)}.eight{display:flex;align-items:center;gap:25px;margin:25px 0}.eight>span{font:100px/1.1 Georgia,serif;color:var(--red)}.eight p{font-size:14px;margin:0}.preparation{padding-top:24px;border-top:1px solid var(--line)}.preparation h3{font-size:16px;margin-bottom:12px}.preparation p{font-size:14px;color:var(--muted)}.exercise{border-top:1px solid #c5b8ab}.exercise:last-child{border-bottom:1px solid #c5b8ab}.exercise summary{list-style:none;display:grid;grid-template-columns:42px 1fr 24px;gap:17px;align-items:center;cursor:pointer;padding:24px 0}.exercise summary::-webkit-details-marker,.research-note summary::-webkit-details-marker{display:none}.exercise-number{font:28px Georgia,serif;color:var(--red)}.exercise summary small{display:block;font-size:12px;letter-spacing:.06em;color:var(--muted);margin-bottom:4px}.exercise summary h3{font-family:var(--serif);font-size:23px}.toggle{font-size:25px;font-weight:300;line-height:1}.exercise[open] .toggle{transform:rotate(45deg)}.exercise-body{padding:0 0 28px 59px}.exercise figure{margin:0 0 22px}.exercise figure img{width:100%;border:1px solid #e7ddd4}.exercise figcaption{font-size:12px;color:var(--muted);margin-top:8px;line-height:1.8}.exercise .dose{color:var(--red);font-size:14px;display:inline-block;margin:0 0 15px;font-weight:600}.exercise ol{margin:0 0 22px;padding-left:1.4em}.exercise li{padding-left:5px;margin-bottom:8px}.tip{padding:17px 20px;background:var(--paper);font-size:14px;margin:0}.tip strong{display:block;font-size:13px;letter-spacing:.08em;margin-bottom:5px;color:var(--red)}.exercise .avoid{font-size:13px;color:var(--muted);margin:14px 0 0}.exercise .retest{font-size:14px;margin:14px 0 0}.recheck{text-align:center;background:#ded3c6}.small-label{font-size:13px;letter-spacing:.18em;display:block;margin-bottom:20px;color:var(--red)}.recheck .micro{max-width:620px;margin:20px auto 0}.section-heading{display:grid;grid-template-columns:1fr 1fr;column-gap:60px}.section-heading .eyebrow{grid-column:1/-1}.section-heading>p:last-child{align-self:end;color:var(--muted);padding-bottom:25px}.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;margin:25px 0 40px}.evidence-grid article{border-top:1px solid var(--line);padding-top:25px}.evidence-num{font:italic 25px Georgia,serif;color:var(--red)}.evidence-grid h3{margin:15px 0 20px}.evidence-grid p{font-size:15px;color:var(--muted)}.evidence-grid a{font-size:13px}.research-note{border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:14px}.research-note summary{list-style:none;display:flex;justify-content:space-between;gap:16px;padding:22px 0;cursor:pointer}.research-note>div{max-width:900px;padding:10px 0 25px;color:var(--muted)}.complete{background:var(--ink);color:var(--paper);display:grid;grid-template-columns:1fr 1fr;gap:10%}.complete .eyebrow{color:#d7b296}.complete h2 span{color:#e1c2a8}.complete .micro{color:#d3c6bb}.complete-intro>p:not(.eyebrow):not(.micro){color:#e2d8d0}.light{background:var(--paper);color:var(--ink);margin-top:13px}.complete-details{border:1px solid #736158;padding:30px 35px}.course-name{font:48px var(--serif);text-align:center;border-bottom:1px solid #736158;padding-bottom:25px}.course-name>span{font-family:Georgia,serif;color:#d7b296}.course-name small{font:13px var(--sans);display:block;margin-top:8px;letter-spacing:.08em}.complete dl{margin:20px 0 0}.complete dl>div{display:grid;grid-template-columns:135px 1fr;gap:16px;padding:14px 0}.complete dt{font-size:14px;white-space:nowrap}.complete dt b{font:36px Georgia,serif;margin-right:8px;color:#e1c2a8}.complete dd{margin:0;font-size:14px;line-height:1.8;color:#e2d8d0}.future{text-align:center}.future>p{color:var(--muted)}.future .eyebrow{color:var(--red)}.future-topics{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin:30px 0 35px}.future-topics span{border:1px solid var(--line);padding:10px 20px;font-size:14px}.text-link{display:inline-block;font-size:16px;color:var(--red)}footer{border-top:1px solid var(--line);margin:0 6%;padding:35px 0;display:flex;align-items:center;gap:35px;font-size:13px}footer p{margin:0}footer small{font-size:11px;color:var(--muted)}footer>a:last-child{margin-left:auto}.mobile-only,.mobile-bar{display:none}.skip{position:absolute;top:-100px;left:20px;z-index:100;background:white;padding:15px}.skip:focus{top:10px}
@media(min-width:1680px){.hero-copy{padding-left:85px}}@media(max-width:1000px){.header{padding:0 4%;height:80px}.header nav{gap:18px}.brand-sub{display:none}.hero{min-height:590px}.hero-copy{padding:55px 6% 45px 8%}.hero h1{font-size:clamp(35px,4.5vw,50px)}.hero .button{font-size:13px;padding:15px}.hero-seal{width:110px;height:110px;left:-30px;bottom:30px}.hero-seal strong{font-size:58px}.section{padding:70px 5%}.practice{gap:5%;grid-template-columns:33% 1fr}.exercise-body{padding-left:0}.evidence-grid{gap:24px}.complete{gap:6%}.complete-details{padding:25px 20px}.complete dl>div{grid-template-columns:110px 1fr;gap:8px}.principles{gap:4%;font-size:12px}}
@media(max-width:700px){html{scroll-padding-top:20px}.header{height:72px;padding:0 6%}.brand-mark{font-size:28px}.header nav>a:not(.nav-cta){display:none}.header nav{font-size:13px}.hero{display:flex;flex-direction:column;min-height:0}.hero-copy{padding:36px 7% 32px}.hero .eyebrow{font-size:12px;margin-bottom:15px}.hero h1{font-size:clamp(37px,9.3vw,58px);margin-bottom:18px;line-height:1.55}.hero-lead{font-size:14px;margin-bottom:24px;line-height:2}.hero .button{font-size:14px;padding:16px 20px;min-width:270px;max-width:100%}.hero .micro{font-size:11px}.hero-art{height:330px;margin-left:7%;width:93%}.hero-art>img{object-position:65% 38%}.hero-art:before{display:none}.hero-seal{width:98px;height:98px;top:-40px;right:20px;left:auto;bottom:auto}.hero-seal strong{font-size:53px}.hero-seal span{font-size:11px}.vertical-note{right:auto;left:22px;top:35px;font-size:15px}.art-caption{font-size:9px;right:15px}.principles{justify-content:space-between;gap:10px;padding:20px 6%}.principles span{font-size:11px;line-height:1.8;flex:1}.principles b{display:block;font-size:17px;margin-bottom:5px}.section{padding:60px 7%}h2{font-size:30px;letter-spacing:.05em;line-height:1.65;margin-bottom:23px}.intro p{font-size:14px}.intro p br{display:none}.mobile-only{display:block}.eyebrow{font-size:12px}.practice{display:block}.practice-heading{position:static}.practice-heading>p{font-size:14px}.practice-heading h2 br{display:none}.eight{display:none}.preparation{padding-top:18px;margin-top:25px}.preparation p{font-size:13px}.practice-heading .micro{font-size:11px;margin-bottom:30px}.exercise summary{grid-template-columns:32px 1fr 20px;gap:11px;padding:21px 0}.exercise-number{font-size:24px}.exercise summary h3{font-size:20px}.exercise summary small{font-size:11px}.exercise ol{font-size:15px}.exercise figure{margin-top:3px}.exercise .tip{padding:15px}.exercise .avoid{font-size:12px}.exercise .retest{font-size:13px}.recheck>p{font-size:14px}.recheck .micro{font-size:12px}.section-heading{display:block}.section-heading>p:last-child{font-size:14px;padding:0}.evidence-grid{display:block;margin-top:32px}.evidence-grid article{padding:22px 0}.evidence-num{float:left;margin-right:16px;font-size:22px}.evidence-grid h3{font-size:18px;margin:0 0 17px}.evidence-grid p{font-size:14px}.evidence-grid a{font-size:12px}.research-note{font-size:13px}.research-note summary{font-size:14px}.complete{display:block}.complete-intro>p{font-size:14px}.complete .button{font-size:13px;width:100%;padding:16px}.complete .micro{font-size:11px}.complete-details{margin-top:40px;padding:28px 24px}.complete dl>div{grid-template-columns:105px 1fr}.complete dd{font-size:13px}.complete dt{font-size:13px}.future>p{font-size:14px}.future-topics{gap:8px}.future-topics span{font-size:13px;padding:9px 14px}.text-link{font-size:14px;line-height:2}.future .micro{font-size:11px}footer{margin:0 7%;gap:16px;flex-wrap:wrap;padding-bottom:108px}footer>a:last-child{font-size:12px}.mobile-bar{display:flex;position:fixed;bottom:0;left:0;right:0;background:rgba(252,250,246,.97);border-top:1px solid var(--line);padding:12px 6% max(12px,env(safe-area-inset-bottom));justify-content:space-between;gap:15px;align-items:center;z-index:10}.mobile-bar>span{font:21px var(--serif);white-space:nowrap}.mobile-bar small{display:block;font:10px var(--sans);color:var(--muted);margin-top:3px}.mobile-bar a{background:var(--red);color:white;font-size:13px;padding:12px 20px;text-decoration:none}.research-note ul{padding-left:1.3em}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}@media print{.header nav,.mobile-bar,.button{display:none}.hero-art{height:300px}.section{padding:25px}.practice,.complete{display:block}.practice-heading{position:static}details::details-content{display:block}.exercise{break-inside:avoid}body{font-size:12pt}}

/* Japanese editorial rhythm: explicit heading lines, natural body wrapping. */
body{line-break:strict;word-break:normal;overflow-wrap:break-word}h1,h2,h3,p,li,dd{font-kerning:normal}p,li,dd{letter-spacing:.015em;text-wrap:pretty}.heading-line,.copy-line{display:block}.heading-line{white-space:nowrap}.hero h1{font-size:clamp(36px,4.1vw,64px);letter-spacing:.04em}.hero-eyebrow{display:flex;flex-wrap:wrap;gap:4px 15px}.hero-eyebrow span{white-space:nowrap}.hero-eyebrow span+span{border-left:1px solid var(--line);padding-left:15px}.hero-lead{margin-bottom:20px}.hero-origin{display:flex;align-items:center;flex-wrap:wrap;gap:2px 8px;font-size:12px;line-height:1.9;color:var(--red);margin:0 0 25px;max-width:36em}.hero-origin span{white-space:nowrap}.hero-origin i{font-style:normal;color:var(--muted)}.hero-note{display:flex;flex-wrap:wrap;gap:2px 15px}.hero-note span{white-space:nowrap}.button{gap:16px;max-width:100%;text-align:left}.button-label{min-width:0;text-wrap:balance}.button>span[aria-hidden]{flex-shrink:0}.editorial-copy{max-width:36em;margin-inline:auto;color:var(--muted)}.editorial-copy p{margin-bottom:18px}.editorial-copy p:last-child{margin-bottom:0}.intro{padding-block:65px;border-top:1px solid var(--line)}.intro h2{font-size:clamp(29px,3vw,42px)}.origins{padding-bottom:70px}.origins-heading{text-align:center;max-width:850px;margin:0 auto 44px}.origins-lead{color:var(--muted);font-size:17px;line-height:2.1}.origin-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}.origin-grid article{padding:10px 32px 12px;border-left:1px solid var(--line)}.origin-grid article:first-child{border-left:0;padding-left:0}.origin-grid article:last-child{padding-right:0}.origin-label{display:block;color:var(--red);font-size:13px;letter-spacing:.08em;margin-bottom:16px}.origin-grid h3{font:25px/1.8 var(--serif);letter-spacing:.03em;margin:0 0 20px}.origin-grid p{font-size:15px;line-height:2.1;color:var(--muted);margin:0;max-width:25em}.origin-summary{border-top:1px solid var(--line);margin-top:40px;padding-top:30px;text-align:center}.origin-summary p{font-family:var(--serif);font-size:19px;line-height:2.1;margin-bottom:18px}.origin-summary a{font-size:14px;color:var(--red)}.practice-heading,.exercise-list,.complete-intro,.complete-details,.section-heading>*{min-width:0}.practice h2{font-size:clamp(30px,3.2vw,44px)}.practice-intro{line-height:2.1}.exercise-title{min-width:0}.exercise-title strong{display:block;font:500 23px/1.6 var(--serif)}.title-phrase{display:inline-block;white-space:nowrap}.exercise summary{gap:14px}.exercise .dose{display:flex;align-items:flex-start;gap:8px 13px;flex-wrap:wrap;line-height:1.8;margin-bottom:23px}.duration{white-space:nowrap;padding:2px 10px;background:var(--paper);border:1px solid var(--line);font-size:13px}.cadence{font-size:14px;padding-top:3px;flex:1 1 180px}.exercise figcaption{max-width:46em}.exercise li{margin-bottom:14px;line-height:2}.recheck-quote{font-family:var(--serif);font-size:20px;color:var(--ink);margin-bottom:24px!important}.complete-copy{color:#e2d8d0;max-width:29em}.complete-copy p{margin-bottom:16px}.complete h2>.heading-line:first-child{color:var(--paper)}.complete dl>div{align-items:start}.course-name small{line-height:1.9}.text-link>span{display:inline-block}.text-link>span+span{margin-left:12px}.future .eyebrow{line-height:2}.future .editorial-copy{max-width:34em}footer{flex-wrap:wrap;gap:24px 30px}footer>a{white-space:nowrap}footer>a:nth-last-child(2){margin-left:auto}footer>a:last-child{margin-left:0}
@media(min-width:701px) and (max-width:1100px){.hero-copy{padding-top:42px}.hero .button{font-size:13px;padding-inline:16px}.hero-origin{font-size:11px;gap:3px 5px}.practice h2{font-size:30px}.origin-grid article{padding-inline:22px}.origin-grid h3{font-size:22px}.complete h2{font-size:34px}.complete dl>div{grid-template-columns:105px 1fr}.complete dt{font-size:13px}.complete dt b{font-size:30px}.complete .button{font-size:13px;padding-inline:16px}}
@media(max-width:700px){.hero h1{font-size:clamp(30px,8.3vw,48px);letter-spacing:.04em}.hero-copy{padding:34px 7% 42px}.hero-eyebrow{gap:2px 11px;letter-spacing:.08em}.hero-eyebrow span+span{padding-left:11px}.hero-origin{font-size:11px;gap:3px 6px;max-width:30em;margin-bottom:23px}.hero .button{min-width:0;width:100%;font-size:14px;min-height:58px;padding-inline:18px}.hero-note{font-size:12px!important;gap:3px 12px}.hero-art{height:310px}.hero-seal{width:88px;height:88px;top:-28px;right:18px}.hero-seal strong{font-size:47px}.hero-seal span{font-size:11px}.section h2,.intro h2,.practice h2{font-size:clamp(25px,6.6vw,32px);letter-spacing:.035em;line-height:1.7}.eyebrow{letter-spacing:.1em;margin-bottom:18px}.origins{padding-top:56px;padding-bottom:44px}.origins-heading{margin-bottom:30px}.origins-lead{font-size:15px;line-height:2}.origins-lead .copy-line{display:inline}.origin-grid{display:block}.origin-grid article,.origin-grid article:first-child,.origin-grid article:last-child{border-left:0;border-top:1px solid var(--line);padding:27px 0}.origin-label{font-size:12px;margin-bottom:10px}.origin-grid h3{font-size:23px;line-height:1.75;margin-bottom:15px}.origin-grid p{font-size:15px;max-width:none;line-height:2}.origin-summary{margin-top:4px;padding-top:25px;text-align:left}.origin-summary p{font-size:16px;line-height:2.1}.origin-summary .copy-line{display:inline}.origin-summary a{font-size:13px}.intro{padding-block:45px}.intro .editorial-copy,.editorial-copy{font-size:15px;line-height:2.05;text-align:left}.intro .editorial-copy{max-width:24em}.desktop-break{display:none}.practice-intro{font-size:15px!important}.exercise-title strong{font-size:clamp(18px,4.9vw,21px);line-height:1.7}.exercise summary{grid-template-columns:28px 1fr 20px;gap:10px}.exercise summary small{font-size:12px;line-height:1.8}.exercise figcaption{font-size:12px;line-height:1.85}.exercise .dose{gap:8px 11px}.cadence{font-size:14px;flex-basis:190px}.exercise li{font-size:16px;line-height:1.95;margin-bottom:17px}.exercise .tip,.exercise .avoid,.exercise .retest{font-size:14px;line-height:1.95}.preparation p{font-size:14px}.recheck .editorial-copy{text-align:center}.recheck-quote{font-size:clamp(16px,4.35vw,19px);letter-spacing:0;white-space:nowrap}.complete-copy{font-size:15px;line-height:2}.complete-details{padding-inline:20px}.complete .button{font-size:14px;line-height:1.8}.complete dl>div{grid-template-columns:100px 1fr;gap:12px;padding-block:16px}.complete dd{font-size:14px;line-height:1.85}.complete dt{font-size:13px}.complete dt b{font-size:31px;margin-right:6px}.course-name small{font-size:12px;letter-spacing:.02em}.evidence-grid p{font-size:15px;line-height:2}.future .editorial-copy{text-align:center;font-size:15px}.future .editorial-copy .copy-line{display:inline}.future .text-link{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:14px;line-height:1.8}.text-link>span+span{margin-left:0}.future .micro,.complete .micro{font-size:12px}footer{display:grid;grid-template-columns:auto 1fr;column-gap:20px;row-gap:20px;font-size:13px}footer>a:nth-last-child(2),footer>a:last-child{margin:0}footer>a:nth-last-child(2){grid-column:1/-1}footer>a:last-child{grid-column:1/-1}.mobile-bar{gap:12px}.mobile-bar a{font-size:13px;padding-inline:15px;white-space:nowrap}}
@media(max-width:360px){.hero-eyebrow{display:block}.hero-eyebrow span{display:block}.hero-eyebrow span+span{border:0;padding:0}.complete dl>div{grid-template-columns:90px 1fr}.hero-origin{font-size:10px}.hero-note{display:block}.hero-note span{display:block}.principles{gap:8px}.principles span{font-size:10px;letter-spacing:0}.practice-heading .micro{font-size:12px}}

/* Keep the five-character phrase intact inside the circular badge. */
.hero-seal{gap:7px}.hero-seal strong{flex:none}.hero-seal>span{flex:none;white-space:nowrap;letter-spacing:0}
@media(max-width:700px){.hero-seal{width:100px;height:100px;gap:5px}.hero-seal strong{font-size:44px}.hero-seal>span{font-size:10px;line-height:1.8}}
