:root{--ink:#122334;--muted:#66788a;--paper:#f7fafc;--white:#fff;--blue:#1689b7;--blue-deep:#0a5c7c;--cyan:#50c7d9;--green:#74bd73;--purple:#b985ca;--line:#dce7ee;--shadow:0 18px 45px rgba(22,71,97,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:var(--white);line-height:1.85}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1120px,calc(100% - 44px));margin:auto}.eyebrow{font-size:.76rem;font-weight:800;letter-spacing:.16em;color:var(--blue);text-transform:uppercase}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,231,238,.8)}.nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}.brand{max-width:520px;font-size:.92rem;font-weight:800;line-height:1.45}.brand small{display:block;font-size:.66rem;color:var(--muted);font-weight:700;letter-spacing:.08em;margin-bottom:2px}.nav{display:flex;align-items:center;gap:24px;font-size:.77rem;font-weight:800;letter-spacing:.08em}.nav a{position:relative;padding:28px 0 24px}.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:18px;height:2px;background:var(--blue);transition:.2s}.nav a:hover::after,.nav a.active::after{right:0}.menu-btn{display:none;border:0;background:none;font-size:1.7rem}
.hero{min-height:680px;display:grid;align-items:center;position:relative;overflow:hidden;background:linear-gradient(135deg,#f8fcff 0%,#eef9fb 55%,#fefefe 100%)}.hero::before{content:"";position:absolute;width:720px;height:720px;border:1px solid #cfe9f1;border-radius:50%;right:-250px;top:-210px;box-shadow:0 0 0 80px rgba(80,199,217,.05),0 0 0 180px rgba(22,137,183,.035)}.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;align-items:center;gap:64px;position:relative;z-index:2}.hero h1{font-size:clamp(2.55rem,5vw,5.3rem);line-height:1.18;letter-spacing:-.045em;margin:16px 0 24px}.hero h1 span{color:var(--blue)}.hero .lead{font-size:1.18rem;color:#425b6c;max-width:690px}.hero-meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:30px;font-size:.85rem;color:var(--muted)}.hero-meta b{color:var(--ink)}
.network-art{position:relative;aspect-ratio:1/1;background:radial-gradient(circle at 50% 50%,rgba(80,199,217,.16),transparent 56%)}.node{position:absolute;width:84px;height:84px;border-radius:20px;background:#fff;border:1px solid #cce6ef;box-shadow:var(--shadow);display:grid;place-items:center;font-weight:900;color:var(--blue-deep)}.node::after{content:"TEE";font-size:.72rem;letter-spacing:.08em}.n1{left:8%;top:20%}.n2{right:9%;top:12%}.n3{right:2%;bottom:25%}.n4{left:18%;bottom:9%}.n5{left:42%;top:41%;width:100px;height:100px;background:var(--blue);color:#fff;border-color:transparent}.edge{position:absolute;height:2px;background:linear-gradient(90deg,rgba(22,137,183,.15),var(--blue),rgba(22,137,183,.15));transform-origin:left center;z-index:-1}.e1{left:22%;top:31%;width:43%;transform:rotate(-20deg)}.e2{left:47%;top:27%;width:36%;transform:rotate(18deg)}.e3{left:49%;top:55%;width:43%;transform:rotate(13deg)}.e4{left:28%;top:73%;width:35%;transform:rotate(-36deg)}.e5{left:25%;top:37%;width:58%;transform:rotate(41deg)}
.section{padding:104px 0}.section.soft{background:var(--paper)}.section-head{display:grid;grid-template-columns:220px 1fr;gap:44px;margin-bottom:48px;align-items:start}.section-head h2{font-size:clamp(2rem,3vw,3.2rem);line-height:1.25;margin:0;letter-spacing:-.03em}.section-head p{margin:0;color:var(--muted);font-size:1.02rem}.statement{font-size:clamp(1.45rem,2.4vw,2.25rem);line-height:1.65;font-weight:700;max-width:900px;margin:0 auto;text-align:center}.statement em{font-style:normal;color:var(--blue)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:0 10px 28px rgba(29,67,88,.06)}.card .num{font-size:2.15rem;font-weight:900;color:#cbdbe3;line-height:1}.card h3{font-size:1.15rem;margin:16px 0 10px}.card p{margin:0;color:var(--muted);font-size:.94rem}.pill{display:inline-flex;padding:6px 10px;border-radius:999px;background:#eef8fb;color:var(--blue-deep);font-size:.72rem;font-weight:800;letter-spacing:.05em}
.links-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.link-card{min-height:250px;border-radius:24px;padding:30px;background:var(--ink);color:white;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end}.link-card:nth-child(2){background:var(--blue-deep)}.link-card:nth-child(3){background:#355566}.link-card::before{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(255,255,255,.18);border-radius:50%;right:-55px;top:-55px;box-shadow:0 0 0 40px rgba(255,255,255,.035)}.link-card small{opacity:.7;font-weight:700;letter-spacing:.12em}.link-card h3{font-size:1.55rem;margin:8px 0 0}.link-card .arrow{position:absolute;right:28px;bottom:27px;font-size:1.7rem}
.page-hero{padding:86px 0 62px;background:linear-gradient(135deg,#f8fcff,#eff8fb);border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(2.6rem,5vw,5rem);margin:8px 0 12px;line-height:1.12;letter-spacing:-.045em}.page-hero p{margin:0;color:var(--muted);font-size:1.04rem}.info-table{display:grid;grid-template-columns:180px 1fr;border-top:1px solid var(--line)}.info-table dt,.info-table dd{padding:18px 0;border-bottom:1px solid var(--line);margin:0}.info-table dt{font-weight:800}.info-table dd{color:#405668}
.figure{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:var(--shadow)}.figure img{margin:auto;max-height:720px;object-fit:contain}.figure figcaption{margin-top:12px;text-align:center;color:var(--muted);font-size:.84rem}.challenge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.challenge{border-top:4px solid var(--blue)}.challenge:nth-child(2){border-color:var(--green)}.challenge:nth-child(3){border-color:var(--purple)}.research-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.research-item h3{margin:12px 0 8px}.research-item strong{display:block;color:var(--blue);font-size:.78rem;letter-spacing:.07em}
.member-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.member{padding:0;overflow:hidden}.member-top{height:190px;background:linear-gradient(135deg,#e9f6fa,#d9eef4);display:grid;place-items:center}.member:nth-child(2) .member-top{background:linear-gradient(135deg,#eef8eb,#dff0d9)}.member:nth-child(3) .member-top{background:linear-gradient(135deg,#f7eff9,#eadcf0)}.initials{width:112px;height:112px;border-radius:50%;background:#fff;display:grid;place-items:center;font-size:2.25rem;font-weight:900;color:var(--blue-deep);box-shadow:0 14px 32px rgba(32,86,111,.12)}.member-body{padding:26px}.member h2{font-size:1.28rem;margin:0 0 3px}.member .role{color:var(--blue);font-weight:800;font-size:.84rem}.member .org{color:var(--muted);font-size:.9rem;margin-top:8px}.member .theme{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:.91rem}
.notice{padding:34px;border:1px dashed #b6cbd5;border-radius:18px;background:#fbfdfe;color:var(--muted)}.contact-box{max-width:760px;border-radius:24px;background:var(--ink);color:#fff;padding:44px}.contact-box p{color:#d5e0e7}.contact-box .label{font-size:.77rem;letter-spacing:.12em;color:#8dd4e5;font-weight:800}
.footer{background:#0d1d2a;color:#d9e3e9;padding:64px 0 34px}.footer-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:40px}.footer h3{margin-top:0;color:#fff}.footer p{color:#9db0bd;font-size:.9rem}.footer-nav{display:grid;grid-template-columns:1fr 1fr;gap:7px;font-size:.84rem}.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:42px;padding-top:22px;color:#78909e;font-size:.76rem}.reveal{opacity:0;transform:translateY(18px);transition:.7s ease}.reveal.visible{opacity:1;transform:none}
@media(max-width:900px){.nav{display:none;position:absolute;left:0;right:0;top:78px;background:#fff;padding:18px 24px 28px;flex-direction:column;align-items:flex-start;border-bottom:1px solid var(--line)}.nav.open{display:flex}.nav a{padding:8px 0}.menu-btn{display:block}.hero{min-height:auto;padding:76px 0}.hero-grid{grid-template-columns:1fr;gap:18px}.network-art{max-width:520px;margin:auto;width:100%}.section-head{grid-template-columns:1fr;gap:12px}.cards,.links-grid,.challenge-grid,.member-grid{grid-template-columns:1fr}.research-grid{grid-template-columns:1fr}.info-table{grid-template-columns:1fr}.info-table dt{padding-bottom:0;border-bottom:0}.footer-grid{grid-template-columns:1fr}.section{padding:76px 0}}
@media(max-width:560px){.container{width:min(100% - 28px,1120px)}.brand{font-size:.78rem}.hero h1{font-size:2.72rem}.network-art{transform:scale(.92)}.card{padding:22px}.contact-box{padding:30px}.page-hero{padding-top:64px}}