:root{color-scheme:light;--ink:#214b52;--accent:#984330;--line:#c6dcd9}
*{box-sizing:border-box}html{font-size:16px}
body{margin:0;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);background:linear-gradient(135deg,#dff4ef,#e8f3f6 55%,#f1f5e8);line-height:1.75;min-height:100vh;display:flex;flex-direction:column}
a{color:inherit;text-underline-offset:4px}button{font:inherit}
a:focus-visible,button:focus-visible{outline:3px solid #984330;outline-offset:5px}
.skip-link{position:absolute;top:-100px;left:16px;padding:10px;background:#fff;z-index:10}.skip-link:focus{top:8px}
.site-header{background:rgba(255,255,255,.85);border-bottom:1px solid var(--line)}
.header-inner{max-width:1240px;margin:auto;padding:20px 32px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.logo{text-decoration:none;font-size:1.1rem;font-weight:700;line-height:1.4;flex-shrink:0}.logo span{display:block;color:var(--accent);font-size:1.35rem;letter-spacing:.08em}
nav{display:flex;flex-wrap:wrap;gap:6px 12px;align-items:center}nav a{padding:8px 10px;text-decoration:none;border-radius:7px;font-size:.9375rem}
nav a:hover,nav a[aria-current=page]{background:#dcece8;color:var(--ink)}nav a[aria-current=page]{font-weight:700;box-shadow:inset 0 -2px var(--accent)}
.container{width:min(1120px,calc(100% - 64px));margin:0 auto;flex:1;padding-bottom:64px}
.hero{padding:72px 0 60px;border-bottom:1px solid var(--line)}.eyebrow{font-size:.875rem;font-weight:700;letter-spacing:.12em;color:#426760}h1,h2,h3,p{margin-top:0}
.hero h1{font-size:clamp(2.8rem,6vw,4.8rem);line-height:1.2;margin:20px 0 24px;letter-spacing:.03em}.hero h1 span{color:var(--accent)}.hero p{font-size:1.125rem;margin-bottom:28px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;border:0;border-radius:24px;background:var(--accent);color:white;text-decoration:none;padding:11px 25px;font-weight:600;cursor:pointer;white-space:normal}.button:hover{background:#7c3527}
.section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin:40px 0 22px}.section-heading h2{font-size:1.5rem;margin:0}.section-heading p{margin:0;color:#426760}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.card{display:block;text-decoration:none;border:1px solid rgba(33,75,82,.13);border-radius:18px;background:rgba(255,255,255,.84);padding:28px;transition:background .15s,border-color .15s}.card:hover{background:#fff;border-color:#739b94}
.card-index{font-size:.875rem;color:var(--accent);font-weight:700}.card h3{font-size:1.25rem;margin:14px 0 8px}.card p{color:#426760;margin-bottom:25px}.card-link{font-size:.9375rem;font-weight:600}
.page-heading{margin:40px 0 28px}.back-link{font-size:.9375rem}.page-heading h1{font-size:clamp(2rem,4vw,3rem);line-height:1.35;margin:24px 0 12px}.page-heading p{color:#426760;font-size:1.0625rem}
.empty,.join-panel{background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:20px;padding:44px;max-width:820px}.empty h2,.join-panel h2{font-size:1.5rem;line-height:1.5;margin:14px 0}.empty p,.join-panel p{max-width:620px}.empty .button{margin-top:12px}.join-panel{max-width:720px}
.number-wrap{padding:20px 0 26px}.number-label{display:block;font-size:.9375rem}#group-number{display:block;font-size:clamp(1.8rem,7vw,2.8rem);letter-spacing:.08em;overflow-wrap:anywhere}#copy-status{min-height:1.75em;margin:16px 0 8px}.muted{font-size:.9375rem;color:#426760}
footer{border-top:1px solid var(--line);background:rgba(255,255,255,.4)}.footer-inner{max-width:1184px;padding:24px 32px;margin:auto;display:flex;justify-content:space-between;gap:12px;font-size:.9375rem}.footer-inner p{margin:0}
@media(max-width:1000px){.header-inner{align-items:flex-start;gap:20px;flex-direction:column}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.header-inner{padding:20px}.container{width:calc(100% - 40px);padding-bottom:40px}nav{gap:4px}nav a{padding:9px 8px}.hero{padding:44px 0 36px}.hero p{font-size:1rem}.section-heading{display:block;margin-top:30px}.section-heading p{margin-top:6px}.cards{grid-template-columns:1fr;gap:14px}.card{padding:24px}.empty,.join-panel{padding:24px}.page-heading{margin-top:26px}.footer-inner{padding:24px 20px;flex-direction:column}.page-heading h1{overflow-wrap:anywhere}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* NEU Fujian association identity */
.site-header .logo{position:relative;display:block;padding-left:68px;min-height:56px;justify-content:center}
.site-header .logo::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:56px;height:56px;background:url('../images/neu-fujian-logo.svg?v=20260916-1') center/contain no-repeat}
@media(max-width:600px){.site-header .logo{padding-left:59px;min-height:50px}.site-header .logo::before{width:49px;height:49px}.site-header .logo span{font-size:1.22rem}}