:root{
  --bg:#0a1728; --ink:#ffffff; --muted:#a8b6c8; --read:#c8d2df;
  --accent:#3f8a3c; --accent-h:#4f9a43;
  --gold:#4f9a43; --gold-txt-light:#8fc677;
  --border:rgba(255,255,255,.13); --card:rgba(255,255,255,.04);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--muted);line-height:1.62;-webkit-font-smoothing:antialiased}
a{color:#c4c9ff;text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1180px;margin:0 auto;padding:0 26px}
/* header */
header{position:sticky;top:0;z-index:50;background:rgba(10,14,28,.9);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;color:#fff;font-size:1.1rem;white-space:nowrap}
.brand img{height:42px;width:42px;object-fit:contain}
.brand .sm{font-size:.55em;vertical-align:super;font-weight:700}
.navlinks{display:flex;gap:22px;align-items:center}
.navlinks a{color:#c3cad8;font-size:.92rem;font-weight:600;white-space:nowrap}
.navlinks a:hover{color:#fff;text-decoration:none}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 24px;border-radius:999px;font-weight:700;font-size:.92rem;border:2px solid var(--accent)}
.btn:hover{background:var(--accent-h);border-color:var(--accent-h);text-decoration:none}
.btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn.ghost:hover{background:rgba(255,255,255,.08)}
.hamburger{display:none;font-size:1.7rem;color:#fff;cursor:pointer;background:none;border:0;line-height:1;padding:2px 6px}
.nav-toggle{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
@media(max-width:1040px){
  .hamburger{display:block}
  .navlinks{display:none;position:absolute;top:100%;left:0;right:0;background:#0c1a2e;flex-direction:column;align-items:stretch;gap:0;padding:6px 24px 16px;border-bottom:1px solid var(--border);box-shadow:0 18px 34px rgba(0,0,0,.45)}
  .nav-toggle:checked ~ .navlinks{display:flex}
  .navlinks a{padding:13px 2px;border-top:1px solid rgba(255,255,255,.07)}
}
/* article */
.kgold{color:var(--gold-txt-light);font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;font-weight:700}
.art-head{position:relative}
.art-head::after{content:"";position:absolute;right:0;bottom:-4px;width:280px;height:100px;background:url('roots-motif.png') right bottom/contain no-repeat;opacity:.32;pointer-events:none}
@media(max-width:760px){.art-head::after{display:none}}
.art-head{padding:84px 0 4px}
.art-head h1{color:#fff;font-size:2.7rem;font-weight:800;line-height:1.15;letter-spacing:-.01em;max-width:820px;margin-top:14px}
.art-head .meta{color:var(--muted);margin-top:14px;font-size:.98rem}
.art-head .rule{width:64px;height:5px;background:var(--gold);border-radius:3px;margin:22px 0 0}
.prose{max-width:740px;padding:14px 0 20px;font-size:1.15rem;line-height:1.82;color:var(--read)}
.prose p{margin:0 0 1.5rem}
.prose .deck{color:#fff;font-size:1.35rem;font-weight:700;line-height:1.35;margin-bottom:2rem}
.prose h2{color:#fff;font-size:1.5rem;font-weight:800;line-height:1.25;margin:2.6rem 0 1rem;letter-spacing:-.01em}
.prose strong{color:#fff;font-weight:800}
.prose a{color:#8fc677;text-decoration:underline;text-underline-offset:2px}
.art-foot{max-width:740px;margin-top:14px;padding-top:26px;border-top:1px solid var(--border)}
.art-foot .sig{color:#fff;font-weight:700}
.art-foot .links{display:flex;gap:22px;flex-wrap:wrap;margin-top:18px;font-size:.95rem}
/* index */
.idx-head{padding:50px 0 6px}
.idx-head h1{color:#fff;font-size:2.9rem;font-weight:800;margin-top:12px}
.idx-head p{color:var(--muted);font-size:1.14rem;max-width:660px;margin-top:12px}
/* magazine layout */
.feature{display:grid;grid-template-columns:1.5fr 1fr;background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;margin:18px 0 26px;text-decoration:none;transition:.15s}
.feature:hover{border-color:rgba(79,154,67,.55)}
.feat-body{padding:40px 42px}
.feat-tag{display:inline-block;background:var(--green);color:#fff;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;padding:5px 13px;border-radius:999px;margin-bottom:16px}
.feature .d{color:var(--gold-txt-light);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;margin-bottom:10px}
.feature h2{color:#fff;font-size:2rem;font-weight:800;line-height:1.16;margin-bottom:14px}
.feature p{color:var(--muted);font-size:1.05rem;line-height:1.6;margin-bottom:18px}
.feature .more{color:#8fc677;font-weight:700}
.feat-side{background:var(--navy);display:flex;align-items:center;justify-content:center;padding:30px}
.feat-side img{width:210px;max-width:72%;filter:drop-shadow(0 12px 32px rgba(0,0,0,.5))}
.art-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-bottom:10px}
.art-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:26px 28px;text-decoration:none;transition:.15s}
.art-card:hover{border-color:rgba(79,154,67,.5);transform:translateY(-2px)}
.art-card .d{color:var(--gold-txt-light);font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;margin-bottom:8px}
.art-card .d::before{content:"";display:inline-block;width:12px;height:13px;background:url('leaf.svg') center/contain no-repeat;margin-right:7px;vertical-align:-2px;transform:rotate(16deg)}
.art-card h3{color:#fff;font-size:1.2rem;font-weight:800;line-height:1.22;margin-bottom:10px}
.art-card p{color:var(--muted);font-size:.97rem;line-height:1.55;flex:1;margin-bottom:14px}
.art-card .more{color:#8fc677;font-weight:700;font-size:.92rem}
@media(max-width:820px){.feature{grid-template-columns:1fr}.feat-side{display:none}.art-grid{grid-template-columns:1fr}}
.tree-bg{position:fixed;right:0;bottom:0;width:min(26vw,360px);height:min(72vh,620px);background:url('student-tree.png') right bottom/contain no-repeat;opacity:.2;pointer-events:none;z-index:-1}
@media(max-width:1080px){.tree-bg{display:none}}
footer{border-top:1px solid rgba(255,255,255,.1);padding:36px 0 46px;text-align:center;margin-top:60px}
footer a{color:#fff;text-decoration:underline}
footer .brandline{color:#fff;font-weight:700;margin-bottom:10px}
footer .flinks{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;margin:14px 0}
footer .flinks a{color:#c3cad8;font-size:.92rem;font-weight:600;text-decoration:none}
footer .flinks a:hover{color:#fff;text-decoration:none}
footer .disc{font-size:.85rem;color:#8592a8;max-width:860px;margin:16px auto 0}
footer .visit{font-size:.9rem;color:#aeb8c8;margin-top:14px}
footer .visit b{color:#fff}