*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Noto Sans JP',sans-serif;font-weight:400;line-height:1.75;color:#1a1a1a;background:#f7f5f0;min-height:100vh;}
:root{
  --ink:#0e0e0d;--ink2:#3d3c38;--ink3:#7a7870;
  --paper:#f7f5f0;--paper2:#edeae3;--paper3:#e2dfd6;
  --accent:#1a3a5c;--accent2:#c8391a;
  --line:rgba(14,14,13,.12);--line2:rgba(14,14,13,.06);
  --serif:'DM Serif Display',serif;--mono:'Space Mono',monospace;
  --r:6px;--r2:12px;
}
h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.2;}
a{color:inherit;text-decoration:none;}
.container{max-width:1080px;margin:0 auto;padding:0 24px;}
.container--narrow{max-width:760px;margin:0 auto;padding:0 24px;}
.page{display:none;}.page.active{display:block;}
.eyebrow{font-family:var(--mono);font-size:.7rem;letter-spacing:.15em;text-transform:uppercase;color:var(--ink3);margin-bottom:.5rem;}

/* NAV */
.site-header{position:sticky;top:0;z-index:100;background:rgba(247,245,240,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;height:60px;gap:24px;}
.nav-logo{font-family:var(--serif);font-size:1.25rem;cursor:pointer;}
.nav-logo span{color:var(--accent2);}
.nav-links{display:flex;gap:0;margin-left:auto;}
.nav-link{padding:6px 12px;font-size:.78rem;font-weight:500;color:var(--ink3);border-radius:var(--r);cursor:pointer;transition:color .2s,background .2s;white-space:nowrap;}
.nav-link:hover,.nav-link.active{color:var(--accent);background:var(--paper2);}
.nav-cta{margin-left:8px;padding:8px 16px;background:var(--accent);color:#fff;font-size:.78rem;font-weight:500;border-radius:var(--r);cursor:pointer;transition:opacity .2s;white-space:nowrap;border:none;font-family:'Noto Sans JP',sans-serif;}
.nav-cta:hover{opacity:.85;}
.nav-hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;margin-left:auto;padding:8px;}
.nav-hamburger span{display:block;width:22px;height:1.5px;background:var(--ink);border-radius:2px;}
.nav-mobile{display:none;flex-direction:column;padding:8px 16px 16px;border-top:1px solid var(--line);}
.nav-mobile.open{display:flex;}
.nav-mobile .nav-link{padding:10px 12px;font-size:.9rem;}
.nav-mobile .nav-cta{margin:8px 12px 0;padding:12px;text-align:center;display:block;border-radius:var(--r);}

/* SECTIONS */
.section{padding:32px 0;border-bottom:1px solid var(--line);}
.section:last-child{border-bottom:none;}
.section-head{margin-bottom:40px;}
.page-hero{padding:56px 0 44px;border-bottom:1px solid var(--line);}
.page-hero h1{font-size:clamp(2rem,4vw,2.8rem);}
.page-hero p{margin-top:1rem;color:var(--ink2);font-size:.92rem;max-width:520px;}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:var(--r);font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s;border:1.5px solid transparent;font-family:'Noto Sans JP',sans-serif;text-decoration:none;}
.btn svg{width:16px;height:16px;flex-shrink:0;}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-primary:hover{background:#122d48;}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-outline:hover{background:var(--paper2);}
.btn-red{background:var(--accent2);color:#fff;border-color:var(--accent2);}
.btn-red:hover{background:#a82e14;}
.btn-lg{padding:14px 28px;font-size:.95rem;}
.btn-xl{padding:18px 36px;font-size:1rem;}

/* HERO */
.hero{padding:80px 0 72px;position:relative;overflow:hidden;
  background-image:url(../images/ICU_p.jpg);
  
}
.hero::before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent,transparent 39px,var(--line2) 39px,var(--line2) 40px),repeating-linear-gradient(90deg,transparent,transparent 39px,var(--line2) 39px,var(--line2) 40px);pointer-events:none;}
.hero-inner{position:relative;background: rgba(255,255,255,0.4);padding:2em;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:18px;}
.hero-eyebrow::before{content:'';display:block;width:20px;height:1px;background:var(--accent);}
.hero-title{font-size:clamp(2.4rem,5vw,3.8rem);line-height:1.1;margin-bottom:12px;}
.hero-title em{font-style:italic;color:var(--accent);}
.hero-subtitle{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;color:var(--ink3);margin-bottom:24px;}
.hero-body{font-size:.92rem;color:var(--ink2);max-width:580px;line-height:1.85;margin-bottom:32px;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r2);overflow:hidden;margin-top:52px;}
.hero-stat{background:var(--paper);padding:18px 20px;}
.hero-stat-num{font-family:var(--serif);font-size:1.8rem;color:var(--accent);line-height:1;}
.hero-stat-label{font-size:.72rem;color:var(--ink3);margin-top:4px;}

/* NEWS */
.news-list{display:flex;flex-direction:column;}
.news-item{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--line);}
.news-item:last-child{border-bottom:none;}
.news-date{font-family:var(--mono);font-size:.7rem;color:var(--ink3);white-space:nowrap;min-width:80px;padding-top:3px;}
.news-badge{font-size:.67rem;font-weight:500;padding:2px 9px;border-radius:20px;white-space:nowrap;flex-shrink:0;}
.badge-lecture{background:#dce8f5;color:#1a3a5c;}
.badge-paper{background:#d6eee1;color:#1e5c3a;}
.badge-recruit{background:#fce8d4;color:#7a3010;}
.badge-other{background:var(--paper3);color:var(--ink2);}
.news-text{flex:1;font-size:.86rem;line-height:1.65;}

/* MEMBERS */
.members-grid{display:flex;flex-direction:column;}
.member-card{display:grid;grid-template-columns:137px 1fr;gap:24px;padding:36px 0;border-bottom:1px solid var(--line);align-items:start;}
.member-card:last-child{border-bottom:none;}
.member-avatar{width:137px;height:137px;border-radius:50%;background:var(--paper3);border:2px solid var(--line);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:1.4rem;color:var(--accent);flex-shrink:0;}
.member-name{font-family:var(--serif);font-size:1.25rem;margin-bottom:2px;}
.member-role{font-size:.76rem;color:var(--ink3);margin-bottom:12px;font-family:var(--mono);}
.member-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px;}
.tag{font-size:.68rem;padding:3px 9px;border:1px solid var(--line);border-radius:20px;color:var(--ink2);background:var(--paper2);}
.member-message{font-size:.86rem;color:var(--ink2);line-height:1.85;padding-left:12px;border-left:2px solid var(--paper3);}

/* TRAINEES */
.trainee-card{border:1px solid var(--line);border-radius:var(--r2);overflow:hidden;margin-bottom:28px;background:var(--paper);}
.trainee-header{display:flex;gap:18px;align-items:center;padding:24px;background:var(--paper2);border-bottom:1px solid var(--line);flex-wrap:wrap;}
.trainee-photo{width:108px;height:108px;border-radius:50%;background:var(--paper3);flex-shrink:0;display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:1.1rem;color:var(--accent);}
.trainee-name{font-family:var(--serif);font-size:1.15rem;}
.trainee-meta{font-size:.76rem;color:var(--ink3);margin-top:2px;}
.trainee-badge{font-size:.68rem;font-weight:500;padding:3px 10px;border-radius:20px;background:#dce8f5;color:#1a3a5c;white-space:nowrap;}
.trainee-qa{padding:24px;}
.qa-item{margin-bottom:22px;}
.qa-item:last-child{margin-bottom:0;}
.qa-q{font-weight:500;font-size:.84rem;color:var(--accent);margin-bottom:7px;display:flex;gap:8px;align-items:flex-start;}
.qa-q::before{content:'Q';font-family:var(--serif);font-size:.95rem;color:var(--accent2);flex-shrink:0;line-height:1.4;}
.qa-a{font-size:.86rem;color:var(--ink2);line-height:1.85;padding-left:22px;}

/* PUBLICATIONS */
.pub-tabs{display:flex;border-bottom:2px solid var(--line);margin-bottom:28px;}
.pub-tab{padding:10px 18px;font-size:.84rem;font-weight:500;cursor:pointer;color:var(--ink3);border-bottom:2px solid transparent;margin-bottom:-2px;transition:color .2s,border-color .2s;}
.pub-tab.active{color:var(--accent);border-bottom-color:var(--accent);}
.pub-tab-content{display:none;}.pub-tab-content.active{display:block;}
.pub-list{display:flex;flex-direction:column;}
.pub-item{padding:18px 0;border-bottom:1px solid var(--line);display:flex;gap:14px;align-items:flex-start;}
.pub-item:last-child{border-bottom:none;}
.pub-year-badge{font-family:var(--mono);font-size:.68rem;padding:3px 7px;background:var(--paper2);border:1px solid var(--line);border-radius:var(--r);color:var(--ink3);white-space:nowrap;flex-shrink:0;margin-top:2px;}
.pub-body{flex:1;}
.pub-title{font-size:.88rem;font-weight:500;line-height:1.5;margin-bottom:3px;}
.pub-authors{font-size:.76rem;color:var(--ink3);margin-bottom:3px;}
.pub-journal{font-size:.76rem;color:var(--ink2);font-style:italic;}
.pub-link{font-size:.7rem;font-family:var(--mono);padding:2px 7px;border:1px solid var(--line);border-radius:var(--r);color:var(--accent);display:inline-block;margin-top:5px;transition:all .2s;}
.pub-link:hover{background:var(--accent);color:#fff;border-color:var(--accent);}
.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:44px;}
.stat-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r2);padding:22px;text-align:center;}
.stat-num{font-family:var(--serif);font-size:2rem;color:var(--accent);line-height:1;}
.stat-label{font-size:.76rem;color:var(--ink3);margin-top:5px;}

/* EDUCATION */
.edu-sub-nav{display:flex;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-bottom:44px;width:fit-content;}
.edu-sub-link{padding:10px 20px;font-size:.8rem;font-weight:500;cursor:pointer;color:var(--ink3);background:var(--paper2);border-right:1px solid var(--line);transition:all .2s;}
.edu-sub-link:last-child{border-right:none;}
.edu-sub-link.active{background:var(--accent);color:#fff;}
.edu-sub-link:hover:not(.active){background:var(--paper3);}
.edu-page{display:none;}.edu-page.active{display:block;}
.year-flow{display:grid;grid-template-columns:1fr 36px 1fr;align-items:center;margin-bottom:44px;}
.year-box{border:1px solid var(--line);border-radius:var(--r2);padding:24px;background:var(--paper);}
.year-box-head{font-family:var(--serif);font-size:1.2rem;margin-bottom:3px;}
.year-box-sub{font-size:.74rem;color:var(--ink3);font-family:var(--mono);margin-bottom:14px;}
.year-box ul{list-style:none;display:flex;flex-direction:column;gap:5px;}
.year-box li{font-size:.83rem;color:var(--ink2);display:flex;gap:8px;}
.year-box li::before{content:'→';color:var(--accent2);flex-shrink:0;}
.year-arrow{text-align:center;color:var(--ink3);}
.year-arrow svg{width:22px;height:22px;}

/* FACILITY */
.facility-accordion{margin-bottom:12px;}
.facility-header{display:flex;gap:14px;align-items:center;padding:20px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r2);cursor:pointer;transition:background .2s;}
.facility-header:hover{background:var(--paper2);}
.facility-header.open{border-radius:var(--r2) var(--r2) 0 0;border-bottom-color:transparent;}
.facility-avatar{width:94px;height:94px;border-radius:50%;background:var(--paper2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:1rem;color:var(--accent);flex-shrink:0;}
.facility-title{font-family:var(--serif);font-size:1rem;}
.facility-subtitle{font-size:.74rem;color:var(--ink3);margin-top:1px;}
.facility-badge{margin-left:auto;font-size:.66rem;font-weight:500;padding:2px 9px;border-radius:20px;white-space:nowrap;flex-shrink:0;}
.badge-core{background:#dce8f5;color:#1a3a5c;}
.facility-chevron{margin-left:6px;flex-shrink:0;transition:transform .3s;color:var(--ink3);}
.facility-chevron svg{width:16px;height:16px;}
.open .facility-chevron{transform:rotate(180deg);}
.facility-body{display:none;border:1px solid var(--line);border-top:none;border-radius:0 0 var(--r2) var(--r2);background:var(--paper);padding:24px;}
.facility-body.open{display:block;}
.facility-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:18px;}
.facility-item{padding:11px 13px;background:var(--paper2);border-radius:var(--r);}
.facility-item-label{font-size:.69rem;color:var(--ink3);font-family:var(--mono);margin-bottom:3px;}
.facility-item-val{font-size:.83rem;color:var(--ink);}
.facility-message{padding:10px 16px;border-left:2px solid var(--paper3);font-size:.85rem;color:var(--ink2);line-height:1.85;margin-top:7px;}
.salary-table{width:100%;border-collapse:collapse;margin-top:14px;}
.salary-table th,.salary-table td{padding:7px 11px;font-size:.8rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}
.salary-table th{color:var(--ink3);font-weight:400;font-family:var(--mono);width:36%;background:var(--paper2);}

/* APPLY */
.apply-note{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;color:var(--ink3);padding:7px 14px;background:var(--paper2);border-radius:20px;border:1px solid var(--line);}
.apply-note svg{width:14px;height:14px;flex-shrink:0;}

/* CTA BAND */
.cta-band{padding:64px 0;background:var(--accent);color:#fff;}
.cta-band h2{font-family:var(--serif);font-size:clamp(1.6rem,3vw,2.2rem);color:#fff;margin-bottom:14px;}

/* FOOTER */
.site-footer{border-top:1px solid var(--line);padding:36px 0;background:var(--paper2);}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;}
.footer-logo{font-family:var(--serif);font-size:1.05rem;}
.footer-logo span{color:var(--accent2);}
.footer-tagline{font-size:.68rem;color:var(--ink3);margin-top:3px;font-family:var(--mono);}
.footer-copy{font-size:.68rem;color:var(--ink3);margin-top:16px;}
.footer-contact{text-align:right;font-size:.76rem;color:var(--ink2);}
.footer-contact strong{display:block;font-size:.82rem;color:var(--ink);margin-bottom:2px;}

/* ANIMATIONS */
@keyframes fadeUp{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:translateY(0);}}
.page.active .animate{animation:fadeUp .4s ease both;}
.page.active .animate-d1{animation-delay:.06s;}
.page.active .animate-d2{animation-delay:.12s;}
.page.active .animate-d3{animation-delay:.18s;}
.page.active .animate-d4{animation-delay:.24s;}

/* RESPONSIVE */
@media(max-width:768px){
  .nav-links,.nav-cta{display:none;}
  .nav-hamburger{display:flex;}
  .aim-grid{grid-template-columns:1fr !important;}
  .hero{padding:48px 0 56px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .member-card{grid-template-columns:94px 1fr;gap:14px;}
  .member-avatar{width:94px;height:94px;font-size:1rem;}
  .year-flow{grid-template-columns:1fr;}
  .year-arrow{display:none;}
  .facility-grid{grid-template-columns:1fr;}
  .stats-row{grid-template-columns:1fr 1fr;}
  .footer-inner{flex-direction:column;align-items:flex-start;}
  .footer-contact{text-align:left;}
  .edu-sub-nav{flex-wrap:wrap;width:auto;}
  .edu-sub-link{flex:1;text-align:center;}
  .news-item{flex-direction:column;gap:6px;}
}
@media(max-width:480px){
  .hero-stats{grid-template-columns:1fr 1fr;}
  .stats-row{grid-template-columns:1fr;}
}
.divider{height:1px;background:var(--line);margin:28px 0;}

.qa-q {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 24px;
}

/* デフォルト（閉じてる） */
.qa-q::after {
  content: "+";
  position: absolute;
  right: 0;
  transition: transform 0.2s;
  font-weight: bold;
}

/* 開いてる状態 */
details[open] .qa-q::after {
  content: "−";
}

a {
  color: #0073e6;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: 0.2s;
}

a:hover {
  color: #005bb5;
  text-decoration-thickness: 2px;
}