:root{--rose:#a83f60;--rose-dark:#823149;--pink:#f8e7ed;--pale:#fff8fa;--ink:#352b2f;--muted:#76676e;--line:#eadbe1;--serif:"Hiragino Mincho ProN","Yu Mincho",YuMincho,serif;--sans:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;color:var(--ink);background:white;font:16px/1.9 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:hover{color:var(--rose)}button,input,textarea,select{font:inherit}button,a,input,select,textarea,summary{touch-action:manipulation}:focus-visible{outline:3px solid var(--rose);outline-offset:5px}img{display:block;max-width:100%;object-fit:cover}h1,h2,h3,p{margin-top:0}h1,h2{font-family:var(--serif);font-weight:500}h1{font-size:clamp(32px,3.5vw,54px);line-height:1.65;letter-spacing:.075em}h2{font-size:clamp(26px,2.6vw,40px);line-height:1.6;letter-spacing:.06em}h3{font-size:20px;font-weight:500;line-height:1.7}p{margin-bottom:24px}.wrap{max-width:1180px;width:calc(100% - 96px);margin-inline:auto}.section-pad{padding-block:100px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.18em;line-height:1.7;color:var(--rose);margin-bottom:22px}.copy-note{font-size:13px;color:var(--muted)}.skip-link{position:fixed;left:15px;top:-90px;background:white;padding:14px;z-index:90}.skip-link:focus{top:10px}.site-header{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;min-height:94px;padding:16px max(32px,calc((100vw - 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1180px)/2)) 25px;background:#fff}.footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:40px}.footer-top nav{display:flex;align-items:center;gap:28px;font-size:14px}.footer-bottom{display:flex;justify-content:space-between;padding-top:24px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.mobile-only{display:none}
.page-hero{background:var(--pale);border-bottom:1px solid var(--line);padding:55px 0 60px}.page-hero h1{margin:0;font-size:44px}.page-hero p:last-child{margin:16px 0 0;color:var(--muted)}.page-hero .eyebrow{margin-bottom:10px}.breadcrumb{display:flex;gap:12px;font-size:12px;color:var(--muted);margin-bottom:28px}.body-section{padding-block:70px}.officers{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}.officers .photo-slot{aspect-ratio:4/5;min-height:0}.officers h3{margin:24px 0 8px;font-family:var(--serif);font-size:25px}.officers p{color:var(--muted);font-size:14px}.structure{background:var(--pale)}.structure .photo-slot{aspect-ratio:16/6;min-height:200px;background:white}.two-columns{display:grid;grid-template-columns:1fr 1fr;gap:60px}.rule-top{border-top:1px solid var(--line);padding-top:30px}.membership-intro{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:55px;margin-bottom:65px}.membership-intro .photo-slot{min-height:280px}.membership-list{display:grid;grid-template-columns:1fr 1fr;gap:25px}.membership-card{padding:35px;border:1px solid var(--line);background:white}.membership-card .number{font-size:13px;color:var(--rose);letter-spacing:.12em}.membership-card h3{font:28px var(--serif);margin:14px 0 20px}.membership-card .fee{display:flex;align-items:baseline;gap:16px;color:var(--rose);margin-bottom:20px}.membership-card .fee strong{font-size:26px;font-weight:500}.membership-card .fee small{font-size:13px}.membership-card p{font-size:15px;color:var(--muted)}.membership-card h4{font-size:16px;font-weight:500}.center{text-align:center;margin:45px 0}.fee-note{background:var(--pale);padding:22px 28px;margin:30px 0}.fee-note p{margin:0}.sponsor{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:45px 30px}.article-card{min-width:0}.article-card img,.article-card .photo-slot{aspect-ratio:3/2;min-height:0;width:100%}.article-image-link{display:block;overflow:hidden}.article-meta{display:flex;gap:15px;align-items:center;margin:20px 0 12px}.article-card h3{font-family:var(--serif);font-size:23px;line-height:1.65;margin-bottom:12px;overflow-wrap:anywhere}.article-card p{font-size:14px;color:var(--muted);line-height:1.9}.tags{display:flex;flex-wrap:wrap;gap:8px}.tags span{font-size:12px;color:var(--rose);border:1px solid var(--line);padding:1px 9px}.empty{padding:70px 25px;text-align:center;background:var(--pale);color:var(--muted)}.article-detail{max-width:780px;margin:0 auto;padding:60px 0 85px}.article-detail h1{font-size:36px;letter-spacing:.03em}.article-detail .article-cover{width:100%;aspect-ratio:3/2;margin:32px 0}.article-body{white-space:pre-wrap;overflow-wrap:anywhere;line-height:2.2;margin-bottom:45px}.sample-notice{border-left:3px solid var(--rose);padding:14px 20px;background:var(--pale);font-size:14px;margin:28px 0}.member-area{max-width:570px;margin:0 auto;padding:70px 0 90px}.member-panel{border:1px solid var(--line);padding:45px;background:white}.member-panel h2{text-align:center;font-size:32px;color:var(--rose)}.member-panel label{display:block;font-size:14px;margin-bottom:20px}.member-panel input{display:block;width:100%;padding:12px;border:1px solid var(--line);background:#f5f3f4;margin-top:6px;color:#8c8287}.member-panel .button{width:100%;justify-content:center}.member-panel p{font-size:14px;color:var(--muted)}.member-note{font-size:13px;color:var(--muted);margin-top:25px}.back-link{display:inline-block;margin:35px 0 0;color:var(--rose);border-bottom:1px solid var(--rose)}
@media(max-width:1000px){.desktop-nav{gap:18px}.wrap{width:calc(100% - 60px)}.hero{gap:35px}.philosophy-grid{gap:50px}.footer-top{flex-direction:column}.article-grid{grid-template-columns:1fr 1fr}.purpose-section{gap:35px}.officers{gap:25px}.news-section{grid-template-columns:230px 1fr;gap:30px}.news-list>a{grid-template-columns:95px 1fr 20px}.news-list .draft-badge{display:none}}
@media(max-width:760px){html{scroll-padding-top:85px}.site-header{min-height:75px;padding:14px 20px}.brand{font-size:21px;gap:10px}.brand-mark{width:36px;height:36px}.brand small{font-size:9px}.desktop-nav{display:none}.mobile-menu{display:block}.mobile-menu summary{display:flex;flex-direction:column;align-items:center;cursor:pointer;list-style:none;font-size:10px;line-height:1.5;color:var(--rose)}.mobile-menu summary::-webkit-details-marker{display:none}.menu-lines{font-size:25px}.mobile-menu nav{position:absolute;left:0;right:0;top:100%;display:flex;flex-direction:column;background:white;border-bottom:1px solid var(--line);padding:15px 25px 28px;max-height:calc(100dvh - 75px);overflow:auto;box-shadow:0 20px 35px #63324810}.mobile-menu nav a{padding:15px 10px;border-bottom:1px solid var(--line)}.mobile-menu nav a[aria-current]{color:var(--rose)}.preview-notice{font-size:12px;padding:8px 18px}.wrap{width:calc(100% - 40px)}.hero{grid-template-columns:1fr;padding-block:34px 40px;gap:25px}.hero h1{font-size:32px;letter-spacing:.025em}.hero .eyebrow{font-size:10px}.lead{font-size:16px}.hero-visual{padding:0;border:0}.hero-photo{aspect-ratio:4/3;max-height:340px}.visual-caption{font-size:9px}.section-pad{padding-block:60px}.news-section{grid-template-columns:1fr;gap:20px;padding-block:35px 50px}.section-side h2{font-size:27px}.news-list>a{grid-template-columns:90px 1fr 15px;gap:10px;padding:20px 0}.news-list strong{font-size:14px}.philosophy-grid{grid-template-columns:1fr;gap:30px}.philosophy-grid h2{font-size:34px}.purpose-section{grid-template-columns:1fr;gap:35px}.purpose-visual .photo-slot{min-height:250px}.research-grid{grid-template-columns:1fr}.research-grid article{padding:26px 10px}.research-grid article+article{border-left:0;border-top:1px solid var(--line)}.section-heading{flex-direction:column;align-items:start;gap:8px}.coming-links{grid-template-columns:1fr;gap:15px}.research-section{padding-bottom:55px}.join-banner{padding:55px 25px}.join-banner h2{font-size:28px}.mobile-only{display:inline}.site-footer{padding:45px 22px 25px}.footer-top nav{display:flex;flex-wrap:wrap;gap:20px 25px}.footer-bottom{flex-direction:column;gap:10px}.page-hero{padding:35px 0}.page-hero h1{font-size:34px}.body-section{padding-block:45px}.officers{grid-template-columns:1fr;gap:35px}.officers .photo-slot{aspect-ratio:4/3;max-width:420px}.officers h3{margin-top:18px}.two-columns,.membership-intro,.membership-list,.sponsor,.article-grid{grid-template-columns:1fr;gap:28px}.membership-intro{margin-bottom:35px}.membership-card{padding:25px}.membership-card h3{font-size:26px}.article-grid{gap:45px}.article-card h3{font-size:24px}.article-detail{padding-block:35px 55px}.article-detail h1{font-size:28px}.member-area{padding-block:40px 55px}.member-panel{padding:30px 22px}.fee-note{padding:20px}.button{max-width:100%}.structure .photo-slot{aspect-ratio:4/3}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.photo-slot{width:100%}.article-cover>.photo-slot{min-height:0;height:100%}.purpose-section>*,.membership-intro>*,.sponsor>*,.two-columns>*,.membership-list>*,.news-list>*{min-width:0}.article-detail h1,.article-card p,.tags span{overflow-wrap:anywhere}.draft-badge{white-space:normal;overflow-wrap:anywhere;max-width:100%}
@media(max-width:1000px){.news-list>a{grid-template-columns:95px 1fr 20px}.news-list .draft-badge{display:inline-block;grid-column:2;justify-self:start}.news-list strong{grid-column:1/3;grid-row:2;overflow-wrap:anywhere}.news-list>a>span:last-child{grid-column:3;grid-row:1/3}}
/* 2026-09-19: 提供原稿の箇条書き・組織体制・会員特典 */
.content-list{margin:12px 0 0;padding-left:1.35em;line-height:1.9;color:var(--muted);font-size:15px}
.content-list li{padding-left:.2em;margin-block:7px;overflow-wrap:anywhere}
.content-list li::marker{color:var(--rose)}
.research-grid-four{grid-template-columns:repeat(2,minmax(0,1fr))}
.research-grid-four article:nth-child(odd){border-left:0}
.research-grid-four article:nth-child(n+3){border-top:1px solid var(--line)}
.content-table{border-collapse:collapse;width:100%;table-layout:fixed;background:white;font-size:15px}
.content-table caption{text-align:left;color:var(--muted);font-size:14px;padding-bottom:14px}
.content-table th,.content-table td{border:1px solid var(--line);padding:18px 24px;text-align:left;vertical-align:top;overflow-wrap:anywhere}
.content-table thead th{background:var(--pink);font-weight:600}
.content-table tbody th{font-weight:500;width:26%}
.roles-table th:first-child{width:26%}
.organization-image{margin-top:40px}
.membership-target strong{font-weight:500;color:var(--ink)}
.membership-card .content-list{margin-bottom:0}
.support-memberships{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-top:50px}
.support-memberships h3,.activity-plans h3{font:26px/1.6 var(--serif)}
.support-fee{display:flex;flex-wrap:wrap;gap:5px 15px;align-items:baseline;color:var(--rose)}
.support-fee span{font-size:13px}.support-fee strong{font-size:24px;font-weight:500}
.support-conditions{margin-top:40px;border-top:1px solid var(--line);padding-top:30px}
.support-conditions p:last-child{margin-bottom:0}
.activity-plans{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:38px 60px;margin-top:35px}
@media(max-width:760px){
 .research-grid-four,.support-memberships,.activity-plans{grid-template-columns:minmax(0,1fr)}
 .research-grid-four article:nth-child(n+2){border-top:1px solid var(--line);border-left:0}
 .content-table{font-size:14px}.content-table th,.content-table td{padding:14px 12px}
.roles-table th:first-child{width:30%}.support-memberships{gap:20px}.activity-plans{gap:25px}
}
/* 2026-09-20: 提供画像を切り取らず表示し、スマートフォンはTOP画像を先頭に */
.content-photo{width:100%;height:auto;object-fit:contain}
.hero>*{min-width:0}
.hero h1{font-size:clamp(30px,2.65vw,40px);letter-spacing:.035em}
.hero-ending{display:inline-block}
.coming-links{grid-template-columns:minmax(0,1fr)}
.leadership-list{max-width:700px;margin:0 auto;font-family:var(--serif);font-size:clamp(22px,2.5vw,30px);line-height:1.8}
.leadership-list>div{display:grid;grid-template-columns:5em minmax(0,1fr);gap:32px;padding:28px 0;border-bottom:1px solid var(--line)}
.leadership-list>div:first-child{border-top:1px solid var(--line)}
.leadership-list dt{color:var(--rose)}
.leadership-list dd{margin:0;letter-spacing:.08em}
.leadership-list dd span{display:block}
.leadership-list dd span+span{margin-top:14px}
@media(max-width:760px){
 .hero-visual{order:-1}
 .hero h1{font-size:clamp(24px,7vw,32px);letter-spacing:.025em;text-wrap:balance}
 .leadership-list>div{grid-template-columns:4em minmax(0,1fr);gap:20px;padding:24px 0}
}