:root{
  /* 水墨調：紙は灰みの生成り、文字は墨、見出しとボタンは藍、小見出しの番号は茶墨 */
  --green:#2e4e7e;--green-deep:#1f3658;--gold:#8a5a2b;--ink:#1d2430;--muted:#5a6472;
  --paper:#eef0ec;--paper-2:#e3e6e1;--white:#f7f7f3;--line:#c9cfc8;--wash:#e9eae4;
  --serif:"Shippori Mincho","Noto Serif JP","Hiragino Mincho ProN","Yu Mincho",serif;--zh:"Noto Serif TC","Shippori Mincho","Noto Serif JP",serif;--sans:"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;
  --container:1120px
}
/* site-shell.css（全ページ共通）の藍・紙の値を、このセクションのページだけ水墨調に寄せる。
   site-shell.css は後に読み込まれるため、:root:root で優先度を上げている。 */
:root:root{--lab-navy:#2e4e7e;--lab-navy-deep:#1f3658;--lab-teal:#4b6a8f;--lab-focus:#4b6a8f;--lab-surface:#eef0ec;--lab-surface-soft:#e3e6e1;--lab-card:#f7f7f3;--lab-border:#c9cfc8;--lab-ink:#1d2430;--lab-ink-soft:#5a6472;--site-shell-on-dark:#b7c1d1}
body .site-header{background:rgba(238,240,236,.95)}
@media(max-width:900px){body .site-header .global-nav{background:rgba(238,240,236,.99)}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.9}
body.nav-open{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
.container{width:min(var(--container),92%);margin-inline:auto}
.skip-link{position:fixed;left:16px;top:-100px;z-index:2000;padding:10px 16px;background:var(--white);border:1px solid var(--line)}
.skip-link:focus{top:16px}
.eyebrow{margin:0 0 12px;color:var(--gold);font-size:.72rem;font-weight:700;letter-spacing:.2em}
.section{padding:88px 0}
.section--white{background:var(--white)}
.section--tint{background:var(--paper-2)}
.section-head{display:grid;grid-template-columns:.85fr 1.15fr;gap:8vw;align-items:end;margin-bottom:46px}
.section-head h2,.heading h2{margin:0;color:var(--green);font-family:var(--serif);font-size:clamp(2rem,4vw,3.35rem);font-weight:600;line-height:1.42}
.section-head>p{margin:0;color:var(--muted)}
.lead{font-family:var(--serif);font-size:clamp(1.25rem,2.25vw,1.75rem);line-height:1.75}
.small-note{color:var(--muted);font-size:.88rem}

.site-header{position:sticky;top:0;z-index:1000;background:rgba(238,240,236,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
.brand{display:flex;flex-direction:column;flex:0 0 auto;line-height:1.2}
.brand strong{color:var(--green);font-family:var(--serif);font-size:1.2rem;letter-spacing:.08em}
.brand small{margin-top:4px;color:var(--muted);font-size:.61rem;letter-spacing:.12em}
.global-nav{display:flex;align-items:center;gap:21px}
.global-nav ul{display:flex;align-items:center;gap:20px;list-style:none;margin:0;padding:0}
.global-nav li a{position:relative;font-size:.73rem;white-space:nowrap}
.global-nav li a:hover,.global-nav li a[aria-current="page"]{color:var(--green)}
.global-nav li a[aria-current="page"]:after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;background:var(--green)}
.menu-toggle{display:none;width:44px;height:44px;padding:9px;border:0;background:none;cursor:pointer}
.menu-toggle span{display:block;height:1px;margin:7px 0;background:var(--green);transition:.2s}
.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:48px;padding:0 24px;border:1px solid var(--green);background:var(--green);color:#fff;font-size:.82rem;letter-spacing:.04em;transition:.2s}
.button:hover{background:var(--green-deep);border-color:var(--green-deep);transform:translateY(-1px)}
.button--small{min-height:40px;padding:0 17px;font-size:.72rem}
.button--outline{background:transparent;color:var(--green)}
.button--outline:hover{color:#fff}
.button--light{background:var(--white);border-color:var(--white);color:var(--green)}
.button--light:hover{background:var(--paper-2);border-color:var(--paper-2);color:var(--green)}

.breadcrumb{padding-top:24px;color:var(--muted);font-size:.72rem}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.breadcrumb li+li:before{content:"/";margin-right:8px}
.hero{position:relative;min-height:640px;margin-top:24px;background:url("/images/garden.jpg") center/cover no-repeat;isolation:isolate}
.hero:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(238,240,236,.98) 0%,rgba(238,240,236,.92) 48%,rgba(238,240,236,.4) 78%,rgba(238,240,236,.12) 100%)}
.hero-inner{padding:100px 0 92px}
.hero-copy{max-width:720px}
.hero h1{margin:0 0 28px;color:var(--green);font-family:var(--serif);font-size:clamp(2.8rem,6.4vw,5.7rem);font-weight:500;line-height:1.25;letter-spacing:.03em}
.hero-lead{max-width:640px;margin:0 0 34px;color:#454f5c;font-size:1rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px}
.hero-mark{position:absolute;right:8%;bottom:36px;color:rgba(46,78,126,.26);font-family:var(--serif);font-size:clamp(5rem,12vw,10rem);line-height:1}

.about-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:9vw;align-items:start}
.about-grid p{margin-top:0;color:var(--muted)}
.reason-grid,.concept-grid,.featured-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.reason-card,.concept-card,.article-card{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.reason-card{min-height:340px;padding:38px;background:rgba(247,247,243,.5)}
.reason-card span{color:var(--gold);font-family:var(--serif);font-size:1.35rem}
.reason-card h3{margin:50px 0 14px;color:var(--green);font-family:var(--serif);font-size:1.45rem;font-weight:600;line-height:1.6}
.reason-card p{margin:0;color:var(--muted);font-size:.92rem}
.concept-card{padding:38px;background:var(--white)}
.concept-card__glyph{margin:0 0 18px;color:var(--green);font-family:var(--serif);font-size:5rem;line-height:1}
.concept-card h3{margin:0 0 14px;color:var(--green);font-family:var(--serif);font-size:1.42rem}
.concept-card>p{color:var(--muted);font-size:.92rem}
.practical-question{margin-top:26px!important;padding-top:20px;border-top:1px solid var(--line);color:var(--ink)!important;font-family:var(--serif);font-size:1rem!important}
.context-note{margin-top:28px;padding:18px 22px;border-left:3px solid var(--gold);background:var(--white);color:var(--muted);font-size:.83rem}

.featured-grid{min-height:200px}
.featured-grid{grid-template-columns:repeat(2,1fr)}
.article-card{display:flex;flex-direction:column;min-height:430px;padding:34px;background:var(--white)}
.article-card[data-status="coming"]{background:rgba(247,247,243,.55)}
.article-card__meta{display:flex;align-items:center;justify-content:space-between;gap:14px;color:var(--muted);font-size:.72rem;letter-spacing:.08em}
.article-card h3{margin:42px 0 18px;color:var(--green);font-family:var(--serif);font-size:1.55rem;font-weight:600;line-height:1.55}
.article-card p{margin:0;color:var(--muted);font-size:.9rem}
.tags{display:flex;flex-wrap:wrap;gap:7px;list-style:none;margin:25px 0 0;padding:0}
.tags li{padding:4px 9px;border:1px solid var(--line);color:var(--muted);font-size:.7rem}
.article-card__action{margin-top:auto;padding-top:26px;color:var(--green);font-size:.8rem;font-weight:700}
.article-card a.article-card__action:hover{text-decoration:underline}
.coming-label{color:var(--muted)}

.filters{display:grid;grid-template-columns:minmax(260px,1fr) 1.6fr;gap:24px;margin-bottom:34px}
.search-box{position:relative}
.search-box input{width:100%;min-height:52px;padding:0 46px 0 17px;border:1px solid var(--line);background:var(--white);color:var(--ink);font-size:1rem}
.search-box:after{content:"⌕";position:absolute;right:17px;top:8px;color:var(--green);font-size:1.5rem}
.filter-buttons{display:flex;flex-wrap:wrap;gap:8px}
.filter-button{min-height:42px;padding:0 15px;border:1px solid var(--line);background:var(--white);color:var(--muted);cursor:pointer;font-size:.78rem}
.filter-button[aria-pressed="true"]{border-color:var(--green);background:var(--green);color:#fff}
.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.article-list .article-card{border:1px solid var(--line);min-height:380px}
.empty-results{display:none;padding:32px;border:1px solid var(--line);background:var(--white);color:var(--muted)}
.empty-results.is-visible{display:block}
.no-script-list{padding:22px;background:var(--white);border:1px solid var(--line)}

.policy-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:8vw;align-items:start}
.policy-steps{margin:0;padding:0;list-style:none;counter-reset:policy}
.policy-steps li{counter-increment:policy;display:grid;grid-template-columns:42px 1fr;gap:18px;padding:15px 0;border-bottom:1px solid var(--line)}
.policy-steps li:before{content:counter(policy,decimal-leading-zero);color:var(--gold);font-family:var(--serif)}
.policy-details{margin-top:28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.policy-details summary{cursor:pointer;padding:20px 36px 20px 0;color:var(--green);font-family:var(--serif);font-size:1.1rem}
.policy-details p{color:var(--muted);font-size:.88rem}
.question-list{display:grid;gap:14px;list-style:none;margin:0;padding:0;counter-reset:question}
.question-list li{counter-increment:question;display:grid;grid-template-columns:58px 1fr;gap:20px;align-items:start;padding:25px;border:1px solid var(--line);background:var(--white);font-family:var(--serif);font-size:1.18rem}
.question-list li:before{content:counter(question,decimal-leading-zero);color:var(--gold);font-size:1.3rem}
.cta{padding:64px 0;background:var(--green-deep);color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:46px}
.cta h2{margin:0 0 12px;font-family:var(--serif);font-size:clamp(2rem,4vw,3.1rem);font-weight:500}
.cta p{max-width:700px;margin:0;color:#c5ccd8}

.article-hero{padding:80px 0 68px;border-bottom:1px solid var(--line)}
.article-hero h1{max-width:900px;margin:15px 0 26px;color:var(--green);font-family:var(--serif);font-size:clamp(2.4rem,5.3vw,4.8rem);font-weight:500;line-height:1.35}
.article-hero__lead{max-width:800px;color:var(--muted);font-size:1.08rem}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:28px;color:var(--muted);font-size:.78rem}
.article-body{max-width:860px}
.article-body section{padding:46px 0;border-bottom:1px solid var(--line)}
.article-body h2{margin:0 0 22px;color:var(--green);font-family:var(--serif);font-size:clamp(1.7rem,3vw,2.35rem);font-weight:600;line-height:1.5}
.article-body h3{margin:32px 0 12px;color:var(--green);font-family:var(--serif);font-size:1.25rem}
.source-block{padding:32px;border-left:4px solid var(--green);background:var(--wash)}
.source-block blockquote{margin:0;font-family:var(--zh);font-size:1.2rem;line-height:2.05}
.vertical-text-wrap{max-width:100%;overflow-x:auto;overflow-y:hidden;padding:4px 0 12px;direction:rtl;overscroll-behavior-inline:contain}
.source-block .vertical-original{width:max-content;min-width:100%;height:36rem;padding:0 8px 12px;direction:ltr;writing-mode:vertical-rl;text-orientation:upright;white-space:normal;line-break:strict;letter-spacing:.08em;line-height:2.15}
.vertical-original .original-paragraph{display:block;margin-left:1.6em}
.source-status{margin:0;color:var(--muted);font-size:.85rem}
.source-citation{margin:20px 0 0;color:var(--muted);font-size:.76rem}
.source-citation a{text-decoration:underline;text-underline-offset:3px}
.kundoku-box{padding:28px;border:1px solid var(--line);background:var(--white);font-family:var(--serif);font-size:1.08rem;line-height:2.15}
.modern-translation-box{padding:30px;border-top:4px solid var(--green);background:var(--white)}
.kundoku-box p:first-child,.modern-translation-box p:first-child,.meaning-box p:first-child,.interpretation-box p:first-child{margin-top:0}
.kundoku-box p:last-child,.modern-translation-box p:last-child,.meaning-box p:last-child,.interpretation-box p:last-child{margin-bottom:0}
.modern-translation-box p{line-height:2.05}
.reading-note{margin:14px 0 0;color:var(--muted);font-size:.78rem}
.meaning-box,.interpretation-box{padding:28px;background:var(--white);border:1px solid var(--line)}
.meaning-box{border-top:4px solid var(--gold)}
.interpretation-box{border-top:4px solid var(--green)}
.action-box{padding:28px;background:var(--green);color:#fff}
.action-box h3{margin-top:0;color:#fff}
.practice-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.practice-item{padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white)}
.practice-item h3{margin:0 0 10px;font-size:1.08rem}
.practice-item p,.practice-item li{color:var(--muted);font-size:.88rem}
.practice-item ul{margin:0;padding-left:1.2em}
.editor-note{margin-top:24px;padding:18px 20px;border-left:3px solid var(--gold);background:var(--white);color:var(--muted);font-size:.85rem}
.editor-note a{text-decoration:underline;text-underline-offset:3px}
.article-nav{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:center;margin-top:42px;padding-top:28px;border-top:1px solid var(--line)}
.article-nav a{color:var(--green);font-size:.82rem}
.article-nav a:last-child{text-align:right}

.site-footer{padding:44px 0 22px;background:var(--green-deep);color:#fff}
.site-footer .brand small{color:#9aa6b8}
.footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:34px}
.footer-brand-copy{max-width:520px}
.footer-lead{margin:24px 0 0;color:#b7c1d1;font-size:.74rem;line-height:2}
.footer-links{display:flex;flex-wrap:wrap;gap:20px;color:#d2d8e2;font-size:.74rem}
.footer-bottom{display:flex;justify-content:space-between;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);color:#8894a8;font-size:.68rem}
.footer-note-link{margin-left:auto;color:#aab4c6;font-size:.75rem;letter-spacing:.04em;text-decoration:underline;text-underline-offset:3px}
.footer-note-link:hover{color:#fff}

@media(max-width:1050px){.global-nav{gap:14px}.global-nav ul{gap:14px}.global-nav li a{font-size:.68rem}}
@media(max-width:900px){
  .menu-toggle{display:block;position:relative;z-index:2}.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  .global-nav{position:fixed;inset:78px 0 auto 0;min-height:calc(100vh - 78px);padding:34px 5%;background:var(--paper);display:flex;flex-direction:column;align-items:stretch;clip-path:inset(0 0 0 100%);visibility:hidden;pointer-events:none;transition:clip-path .25s,visibility .25s}.global-nav.is-open{clip-path:inset(0);visibility:visible;pointer-events:auto}.global-nav ul{flex-direction:column;align-items:stretch}.global-nav li{border-bottom:1px solid var(--line)}.global-nav li a{display:block;padding:14px 0;font-size:.95rem}.global-nav li a[aria-current="page"]:after{display:none}.global-nav .button{align-self:flex-start}
  .section-head,.about-grid,.policy-grid{grid-template-columns:1fr;gap:32px}.reason-grid,.concept-grid,.featured-grid,.article-list{grid-template-columns:repeat(2,1fr)}.practice-grid{grid-template-columns:1fr}.filters{grid-template-columns:1fr}.hero{min-height:570px}.hero-mark{display:none}
}
@media(max-width:620px){
  .section{padding:66px 0}.brand small{display:none}.hero{min-height:auto;margin-top:16px;background-position:64% center}.hero:before{background:rgba(238,240,236,.88)}.hero-inner{padding:72px 0}.hero h1{font-size:2.65rem}.hero-actions{align-items:stretch;flex-direction:column}.reason-grid,.concept-grid,.featured-grid,.article-list{grid-template-columns:1fr}.reason-card{min-height:auto}.article-card{min-height:auto}.article-card__action{margin-top:28px}.cta-inner,.footer-top,.footer-bottom{align-items:flex-start;flex-direction:column}.question-list li{grid-template-columns:40px 1fr;padding:20px;font-size:1.04rem}.article-hero{padding:58px 0 46px}.source-block,.kundoku-box,.modern-translation-box,.meaning-box,.interpretation-box,.action-box{padding:22px}.source-block .vertical-original{height:29rem;font-size:1.08rem;line-height:2}.article-nav{grid-template-columns:1fr}.article-nav a:last-child{text-align:left}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button,.global-nav,.menu-toggle span{transition:none}}

/* ---- 原典記事（既存記事と同じ10段構成のページ）と一覧 ---- */
.classics-article .article-body a:not(.button){text-decoration:underline;text-underline-offset:4px}
.classics-article .article-body a:not(.button):hover{color:var(--green)}
.classics-article .source-block .vertical-original{min-width:0}
.classics-article .source-block .vertical-original--long{height:30rem}
.classics-article .kundoku-box p,.classics-article .modern-translation-box p{margin:0 0 1em}
.kundoku-label{margin:1.2em 0 .3em!important;color:var(--muted);font-family:var(--sans);font-size:.78rem;letter-spacing:.1em}
.kundoku-label:first-child{margin-top:0!important}
.classics-article .editor-note ul{margin:0;padding-left:1.1em}
.classics-article .editor-note li+li{margin-top:.5em}
.classics-article .editor-note .tag{margin-right:.4em;color:var(--gold);font-family:var(--sans);font-size:.8em;letter-spacing:.08em}
.classics-article .meaning-box h3,.classics-article .interpretation-box h3{margin:1.4em 0 .5em;font-size:1.08rem}
.classics-article .meaning-box ul,.classics-article .interpretation-box ul,.classics-article .action-box ol{padding-left:1.3em}
.classics-article .meaning-box li+li,.classics-article .action-box li+li{margin-top:.5em}
.classics-article .article-body section>h3{margin:28px 0 10px}
.classics-article .article-body section>h3+p{margin-top:0}
.classics-article #source code,.classics-article .article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;background:var(--paper-2);padding:.05em .35em}
.section-head--list{margin:56px 0 24px;align-items:end}
.section-head--list:first-of-type{margin-top:0}
.section-head--list h2{font-size:clamp(1.5rem,2.6vw,2.1rem)}
.article-list .article-card{min-height:0}
.article-list .article-card h3{margin:26px 0 12px;font-size:1.3rem}
.article-list .article-card h2{margin:26px 0 12px;color:var(--green);font-family:var(--serif);font-size:1.3rem;font-weight:600;line-height:1.55}
.article-list .article-card .tags{margin-top:16px}
.article-list .article-card__action{padding-top:18px}
#originals .article-list .article-card{border:1px solid var(--line)}
@media(max-width:620px){.classics-article .source-block .vertical-original--long{height:24rem}}