:root{--green:#0b5b40;--green-dark:#073e2e;--green-soft:#eaf4ee;--gold:#d9b45b;--ink:#17251f;--muted:#68766f;--line:#e4ebe6;--paper:#fff;--bg:#f7faf8}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.6}
.wrap{width:min(1120px,calc(100% - 40px));margin-inline:auto}.site-header{height:82px;border-bottom:1px solid var(--line);background:#fff}.header-inner,.brand{display:flex;align-items:center}.header-inner{height:100%;justify-content:space-between}.brand{gap:12px;text-decoration:none;color:var(--green)}.brand-mark{width:45px;height:45px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:var(--gold);font-size:27px;border:2px solid var(--gold)}.brand strong,.brand span{display:block}.brand strong{font-size:13px;letter-spacing:.08em}.brand span{font-size:12px;color:var(--muted)}.admin-link{font-size:13px;color:var(--green);text-decoration:none;font-weight:650}
.hero{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--green-dark),var(--green));color:white;padding:88px 0 96px}.hero-content{position:relative;z-index:1}.eyebrow{font-size:11px;letter-spacing:.17em;font-weight:800;color:var(--gold)}.eyebrow.green{color:var(--green)}h1{font-size:clamp(42px,6vw,68px);line-height:1.08;letter-spacing:-.045em;margin:18px 0 18px;font-weight:800}h1 span{color:var(--gold)}.hero p{max-width:560px;color:#e0eee6;font-size:17px;margin:0 0 28px}.button{display:inline-flex;gap:18px;align-items:center;text-decoration:none;font-size:14px;font-weight:750;border-radius:8px;padding:13px 19px}.button-gold{background:var(--gold);color:#233326}.hero-decoration{position:absolute;right:10%;top:0;color:#ffffff0d;font-size:360px;line-height:1}
.collection-section{padding:66px 0 72px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:22px}.section-heading h2,.about-inner h2{font-size:30px;letter-spacing:-.03em;margin:5px 0 0}.count{font-size:12px;color:var(--muted);background:var(--bg);border:1px solid var(--line);padding:7px 11px;border-radius:30px}
.search-box{display:flex;align-items:center;gap:12px;border:1px solid #dce6df;border-radius:10px;padding:0 15px;height:54px;box-shadow:0 3px 12px #102f1b06}.search-box span{font-size:26px;color:var(--green)}.search-box input{border:0;outline:0;width:100%;font:inherit;font-size:14px;background:transparent}.filter-row{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0 25px}.filter{border:1px solid var(--line);background:#fff;border-radius:30px;padding:9px 14px;color:#526159;font-size:12px;font-weight:700;cursor:pointer}.filter.active,.filter:hover{background:var(--green);border-color:var(--green);color:#fff}
.lecture-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.lecture-card{border:1px solid var(--line);border-radius:13px;padding:20px;display:flex;gap:16px;align-items:flex-start;min-width:0;transition:box-shadow .2s,border-color .2s}.lecture-card:hover{border-color:#b8d1c1;box-shadow:0 8px 25px #123b2410}.play-button{flex:0 0 46px;height:46px;border:0;border-radius:50%;background:var(--green-soft);color:var(--green);font-size:18px;cursor:pointer}.lecture-body{min-width:0;flex:1}.tag{display:inline-block;color:var(--green);background:var(--green-soft);border-radius:4px;padding:3px 7px;font-size:10px;font-weight:800;letter-spacing:.04em}.lecture-card h3{font-size:17px;line-height:1.35;margin:9px 0 5px}.lecture-meta{font-size:12px;color:var(--muted);margin:0 0 12px}.audio-player{width:100%;height:36px;display:block;margin-top:8px}.audio-placeholder{font-size:12px;color:#8a6b25;background:#fff8e8;padding:9px 11px;border-radius:6px}.notice{font-size:12px;color:var(--muted);background:var(--bg);padding:13px 15px;border-radius:8px;margin-top:25px}.empty-state{text-align:center;padding:50px 20px;color:var(--muted)}.empty-icon{font-size:36px;color:var(--green)}.empty-state strong{color:var(--ink)}.empty-state p{font-size:13px}
.about-section{background:var(--bg);border-block:1px solid var(--line);padding:48px 0}.about-inner{display:flex;gap:22px;align-items:center}.about-symbol{flex:0 0 62px;height:62px;border-radius:14px;background:var(--green);color:var(--gold);display:grid;place-items:center;font-size:35px}.about-inner h2{font-size:24px}.about-inner p{max-width:700px;color:var(--muted);font-size:14px;margin-bottom:0}footer{padding:22px 0;color:var(--muted);font-size:11px}.footer-inner{display:flex;justify-content:space-between;gap:12px}
@media(max-width:700px){.wrap{width:min(100% - 28px,1120px)}.site-header{height:72px}.brand strong{font-size:11px}.brand-mark{width:40px;height:40px}.admin-link{font-size:12px}.hero{padding:65px 0 72px}.hero p{font-size:15px}.hero-decoration{right:-22%;top:25px;font-size:250px}.collection-section{padding:46px 0 50px}.section-heading h2{font-size:25px}.lecture-list{grid-template-columns:1fr}.lecture-card{padding:16px;gap:12px}.filter-row{gap:7px}.filter{font-size:11px;padding:8px 11px}.about-inner{align-items:flex-start}.about-inner h2{font-size:21px}.footer-inner{flex-direction:column;gap:4px}}