:root{--bg:#f4f7fb;--surface:#fff;--surface2:#eaf0f8;--text:#10213d;--muted:#5d6b80;--primary:#0b5ed7;--border:#d7e0ec;--shadow:0 20px 60px rgba(25,50,85,.12)}html[data-theme="dark"]{--bg:#07111f;--surface:#101d30;--surface2:#16253b;--text:#eef5ff;--muted:#aebdd0;--primary:#6ba9ff;--border:#293b54;--shadow:0 22px 70px rgba(0,0,0,.36)}*{box-sizing:border-box}html{color-scheme:light}html[data-theme="dark"]{color-scheme:dark}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,sans-serif;line-height:1.7;transition:.25s}.project-topbar{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}.project-nav{width:min(1120px,calc(100% - 32px));height:76px;margin:auto;display:flex;align-items:center;gap:14px}.project-brand{font-weight:900;font-size:1.25rem;color:var(--text);text-decoration:none}.project-spacer{flex:1}.return-home,.project-theme{height:42px;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:13px;display:inline-flex;align-items:center;gap:8px;padding:0 14px;text-decoration:none;font-weight:750;cursor:pointer}.project-theme{width:42px;justify-content:center;padding:0}.return-home:hover{border-color:var(--primary);color:var(--primary)}main{width:min(1000px,calc(100% - 32px));margin:48px auto 90px}.project-breadcrumb{font-size:.82rem;color:var(--muted);margin-bottom:18px}.project-breadcrumb a{color:var(--primary)}article.project-content{background:var(--surface);border:1px solid var(--border);border-radius:28px;padding:clamp(28px,5vw,64px);box-shadow:var(--shadow)}.badge{display:inline-flex;background:var(--surface2);color:var(--primary);padding:7px 12px;border-radius:999px;font-weight:800;font-size:.76rem}h1{font-size:clamp(2.6rem,6vw,5rem);line-height:1.02;letter-spacing:-.05em;margin:24px 0}h2{font-size:1.55rem;margin-top:42px}p,li,dd{color:var(--muted)}a{color:var(--primary)}.project-content ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding:0;list-style:none}.project-content li{padding:14px 16px;background:var(--surface2);border-radius:14px;border:1px solid var(--border)}dl{display:grid;grid-template-columns:190px 1fr;gap:12px 20px;padding-top:16px;border-top:1px solid var(--border)}dt{font-weight:850}dd{margin:0}.project-footer{width:min(1000px,calc(100% - 32px));margin:0 auto 40px;color:var(--muted);font-size:.82rem}.floating-return{position:fixed;right:22px;bottom:22px;z-index:12;width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:var(--primary);color:#fff;text-decoration:none;box-shadow:var(--shadow);font-size:1.4rem}@media(max-width:650px){.project-nav{height:66px}.return-home span{display:none}.project-content ul{grid-template-columns:1fr}dl{grid-template-columns:1fr}main{margin-top:28px}.project-theme{display:none}}