:root{--bg:#0B0E1F;--surface:#13172E;--raised:#1B2040;--border:rgba(255,255,255,.10);--text:#F4F5FA;--muted:rgba(235,238,255,.66);--accent:#8B7CFF;--accent2:#5EC8F2;--radius:12px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--bg);color:var(--text);font-size:16px;line-height:1.6;min-height:100vh;display:flex;flex-direction:column}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 32px}
/* nav */
header.nav{position:sticky;top:0;z-index:50;background:rgba(11,14,31,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav .wrap{position:relative;display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;letter-spacing:.5px}
.brand .dot{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;font-size:15px}
.links{display:flex;gap:4px;position:absolute;left:50%;transform:translateX(-50%)}
.links a{padding:8px 14px;border-radius:8px;color:var(--muted);font-size:15px;transition:.2s}
.links a:hover{color:var(--text);background:var(--raised)}
.links a.active{color:var(--text);background:var(--raised)}
.menu-btn{display:none;background:none;border:1px solid var(--border);color:var(--text);border-radius:8px;width:44px;height:44px;font-size:20px;cursor:pointer}
/* hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border);background:#0A0D22 url(hero.jpg) right center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#070A1C 0%,rgba(7,10,28,.85) 40%,rgba(7,10,28,0) 75%)}
.hero .wrap{position:relative;padding-top:96px;padding-bottom:96px}
.badge{display:inline-block;padding:4px 14px;border:1px solid rgba(139,124,255,.5);background:rgba(139,124,255,.12);color:#CFC8FF;border-radius:999px;font-size:13px;margin-bottom:20px}
.hero h1{font-size:52px;line-height:1.15;font-weight:800;letter-spacing:1px}
.hero p{color:var(--muted);font-size:18px;margin-top:14px;max-width:520px}
.cta{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 22px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:.2s}
.btn-primary{background:linear-gradient(135deg,#7C6CFF,#5A8CFF);color:#fff}
.btn-primary:hover{filter:brightness(1.1)}
.btn-ghost{border-color:var(--border);color:var(--text);background:rgba(255,255,255,.04)}
.btn-ghost:hover{background:var(--raised)}
/* page head */
.page-head{padding:56px 0 8px}
.page-head h1{font-size:36px;font-weight:800}
.page-head p{color:var(--muted);margin-top:8px}
section{padding:48px 0}
.sec-title{display:flex;align-items:end;justify-content:space-between;margin-bottom:24px;gap:16px}
.sec-title h2{font-size:24px;font-weight:700}
.sec-title a{color:var(--muted);font-size:14px}
.sec-title a:hover{color:var(--text)}
/* category tiles */
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cat{padding:24px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);transition:.25s;display:block}
.cat:hover{transform:translateY(-3px);border-color:rgba(139,124,255,.5)}
.cat .ic{font-size:28px}
.cat h3{font-size:18px;margin-top:12px}
.cat p{color:var(--muted);font-size:14px;margin-top:4px}
.cat .count{margin-top:16px;font-size:13px;color:#CFC8FF}
/* toolbar */
.search{width:100%;max-width:360px;height:44px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);padding:0 14px;font-size:15px;outline:none}
.search:focus{border-color:var(--accent)}
/* cards */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{display:flex;flex-direction:column;padding:22px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);transition:.25s}
.card:hover{border-color:rgba(139,124,255,.45);background:#161B36}
.tag{align-self:flex-start;font-size:12px;padding:2px 10px;border-radius:999px;background:rgba(94,200,242,.12);color:#9FDDF7}
.tag.ai{background:rgba(139,124,255,.15);color:#CFC8FF}
.tag.ot{background:rgba(255,255,255,.08);color:var(--muted)}
.card h3{font-size:17px;line-height:1.45;margin-top:12px}
.card p{color:var(--muted);font-size:14px;margin-top:8px;flex:1}
.card .row{display:flex;gap:8px;margin-top:18px;align-items:center}
.card .row .btn{flex:1;padding:0 12px}
.card .date{font-size:12px;color:rgba(235,238,255,.45);margin-top:12px}
.empty{padding:48px;text-align:center;color:var(--muted);border:1px dashed var(--border);border-radius:var(--radius)}
/* donate */
.donate{display:grid;grid-template-columns:repeat(2,minmax(0,300px));gap:24px;justify-content:center;margin-top:16px}
.qr{padding:24px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);text-align:center}
.qr img{width:100%;aspect-ratio:1;object-fit:contain;border-radius:8px;background:#fff}
.qr .ph{width:100%;aspect-ratio:1;border-radius:8px;border:1px dashed var(--border);display:grid;place-items:center;color:var(--muted);font-size:14px}
.qr h3{margin-top:16px;font-size:17px}
.qr.wx h3::before{content:"● ";color:#46C17A}
.qr.ali h3::before{content:"● ";color:#4B9BFF}
.thanks{text-align:center;color:var(--muted);max-width:520px;margin:0 auto}
/* footer */
footer{margin-top:auto;border-top:1px solid var(--border);padding:28px 0;color:rgba(235,238,255,.45);font-size:13px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.toast{position:fixed;left:50%;bottom:32px;transform:translateX(-50%) translateY(20px);background:#fff;color:#111;padding:10px 18px;border-radius:8px;font-size:14px;opacity:0;transition:.25s;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
:focus-visible{outline:2px solid var(--accent2);outline-offset:2px}
@media (max-width:900px){.grid,.cats{grid-template-columns:repeat(2,1fr)}}
@media (max-width:680px){
 .wrap{padding:0 20px}
 .menu-btn{display:block}
 .links{display:none;position:absolute;top:64px;left:0;right:0;transform:none;flex-direction:column;background:#0E1228;border-bottom:1px solid var(--border);padding:8px 20px 16px}
 .links.open{display:flex}
 .links a{padding:12px 14px}
 .hero{background-position:70% center}
 .hero::before{background:linear-gradient(180deg,rgba(7,10,28,.65),rgba(7,10,28,.92))}
 .hero .wrap{padding-top:64px;padding-bottom:64px}
 .hero h1{font-size:36px}.hero p{font-size:16px}
 .grid,.cats{grid-template-columns:1fr}
 .donate{grid-template-columns:1fr}
 .page-head h1{font-size:28px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.menu-btn i{display:block;width:18px;height:2px;background:var(--text);margin:4px auto;border-radius:2px}
@media (max-width:680px){
 .menu-btn{display:flex;flex-direction:column;justify-content:center}
 .cat{display:grid;grid-template-columns:40px 1fr;column-gap:12px;padding:16px 18px}
 .cat .ic{grid-row:span 3;font-size:26px}
 .cat h3{margin-top:0}
 .cat .count{margin-top:6px}
}

/* 1:1 cover */
.card{padding:0;overflow:hidden}
.card .thumb{position:relative;aspect-ratio:1/1;background:linear-gradient(135deg,#1B2150,#2A1F5C 55%,#123A52);overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s}
.card:hover .thumb img{transform:scale(1.04)}
.card .thumb .ph{position:absolute;inset:0;display:grid;place-items:center;align-content:center;gap:10px;color:rgba(235,238,255,.55);font-size:13px}
.card .thumb .ph b{font-size:56px;line-height:1}
.card .body{display:flex;flex-direction:column;flex:1;padding:18px 20px 20px}
.card .thumb .tag{position:absolute;top:12px;left:12px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);background:rgba(11,14,31,.6)}
.card .body h3{margin-top:0}
@media (max-width:680px){.grid{grid-template-columns:repeat(2,1fr);gap:12px}.card .body{padding:12px 12px 14px}.card .body h3{font-size:14px}.card .body p{font-size:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card .row{flex-direction:column;gap:6px}.card .row .btn{width:100%;height:38px;font-size:13px}.card .thumb .ph b{font-size:40px}}
@media (min-width:681px) and (max-width:860px){.links{position:static;transform:none;margin-left:auto}}