@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,wght@0,400;0,500;0,700;1,400&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --sidebar:#1a1a2e;--sidebar-text:#c7c7d9;--accent:#d97706;--accent-light:#fef3c7;
  --bg:#f5f0e8;--surface:#fff;--text:#292524;--muted:#78716c;--border:#e7e5e4;
  --font:'DM Sans',system-ui,sans-serif;
}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;min-height:100vh;display:flex}

.sidebar{width:260px;min-height:100vh;background:var(--sidebar);color:var(--sidebar-text);position:fixed;left:0;top:0;bottom:0;display:flex;flex-direction:column;padding:28px 20px;z-index:200}
.sidebar-brand{display:flex;align-items:center;gap:12px;margin-bottom:36px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar-brand img{width:44px;height:44px;border-radius:10px}
.sidebar-brand span{font-size:1.05rem;font-weight:700;color:#fff;line-height:1.3}
.sidebar nav{flex:1;display:flex;flex-direction:column;gap:4px}
.sidebar nav a{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:10px;color:var(--sidebar-text);font-weight:500;font-size:.95rem;transition:background .2s,color .2s}
.sidebar nav a:hover,.sidebar nav a.active{background:rgba(217,119,6,.2);color:#fff}
.sidebar nav a.active{border-left:3px solid var(--accent);padding-left:13px}
.sidebar .nav-icon{width:20px;text-align:center;opacity:.7}
.sidebar-dl{margin-top:auto;padding-top:20px}
.sidebar-dl a{display:block;text-align:center;padding:14px;background:var(--accent);color:#fff!important;font-weight:700;border-radius:10px}
.sidebar-dl a:hover{background:#b45309}

.main{margin-left:260px;flex:1;min-width:0}
.topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:16px 40px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:50}
.topbar .crumb{font-size:.85rem;color:var(--muted)}
.topbar .crumb strong{color:var(--text)}

.panel{padding:40px}
.panel-narrow{max-width:820px}

.hero-panel{background:var(--surface);border-radius:16px;border:1px solid var(--border);overflow:hidden;margin-bottom:32px;box-shadow:0 4px 24px rgba(0,0,0,.06)}
.hero-panel-grid{display:grid;grid-template-columns:1fr 1.1fr;min-height:380px}
.hero-panel-text{padding:48px 40px;display:flex;flex-direction:column;justify-content:center}
.hero-panel-text h1{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700;line-height:1.2;margin-bottom:16px;color:var(--text)}
.hero-panel-text h1 span{color:var(--accent)}
.hero-panel-text p{color:var(--muted);margin-bottom:28px;font-size:1.05rem}
.hero-panel-visual{position:relative;background:linear-gradient(135deg,#faf8f5,#ebe6df);display:flex;align-items:center;justify-content:center;padding:24px}
.hero-panel-visual img{border-radius:8px;box-shadow:0 12px 40px rgba(0,0,0,.12);max-height:320px;width:auto}
#canvas-record{position:absolute;inset:0;width:100%;height:100%;opacity:.25;pointer-events:none}

.btn-primary{display:inline-flex;padding:13px 26px;background:var(--accent);color:#fff!important;font-weight:700;border-radius:8px;border:none}
.btn-primary:hover{background:#b45309;color:#fff!important}
.btn-outline{display:inline-flex;padding:13px 26px;border:2px solid var(--border);color:var(--text)!important;border-radius:8px;font-weight:600;margin-left:12px}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)!important}

.step-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:32px 0}
.step-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:28px 24px;position:relative}
.step-card .num{position:absolute;top:16px;right:20px;font-size:2rem;font-weight:700;color:var(--accent-light);line-height:1}
.step-card h3{font-size:1.05rem;margin-bottom:10px;color:var(--text)}
.step-card p{font-size:.9rem;color:var(--muted)}

.feature-table{width:100%;border-collapse:collapse;background:var(--surface);border-radius:12px;overflow:hidden;border:1px solid var(--border);margin:24px 0}
.feature-table th,.feature-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--border);font-size:.92rem}
.feature-table th{background:var(--accent-light);color:#92400e;font-weight:700}
.feature-table td{color:var(--muted)}
.feature-table tr:last-child td{border-bottom:none}

.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:24px}
.news-item{background:var(--surface);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:box-shadow .2s}
.news-item:hover{box-shadow:0 8px 30px rgba(0,0,0,.08)}
.news-item img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-item-body{padding:20px}
.news-item time{font-size:.78rem;color:var(--accent);font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.news-item h3{margin:8px 0;font-size:1rem;line-height:1.45}
.news-item h3 a{color:var(--text)}
.news-item h3 a:hover{color:var(--accent)}
.news-item p{font-size:.88rem;color:var(--muted)}

.section-title{font-size:1.5rem;font-weight:700;margin:40px 0 20px;padding-bottom:12px;border-bottom:2px solid var(--accent-light)}

.dl-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.dl-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:32px 24px;text-align:center}
.dl-card .os{font-size:2rem;margin-bottom:12px}
.dl-card h3{margin-bottom:6px}
.dl-card .meta{color:var(--muted);font-size:.85rem;margin-bottom:20px}

.article-panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:40px;margin:0 40px 40px}
.article-panel h1{font-size:1.8rem;margin-bottom:8px}
.article-panel .meta{color:var(--muted);margin-bottom:28px;font-size:.88rem;border-bottom:1px solid var(--border);padding-bottom:20px}
.article-panel h2{font-size:1.2rem;margin:24px 0 12px;color:var(--accent)}
.article-panel p{color:var(--muted);margin-bottom:14px;line-height:1.85}
.article-panel img{border-radius:8px;margin:20px 0;border:1px solid var(--border)}

.site-foot{margin:40px;padding:24px;text-align:center;color:var(--muted);font-size:.82rem;border-top:1px solid var(--border)}
.footer-friends{margin-bottom:12px}
.footer-friends a{color:var(--muted);margin:0 8px}
.footer-friends a:hover{color:var(--accent)}

@media(max-width:960px){
  body{flex-direction:column}
  .sidebar{width:100%;min-height:auto;position:relative;flex-direction:row;flex-wrap:wrap;padding:16px}
  .sidebar-brand{margin-bottom:0;border:none;padding:0}
  .sidebar nav{flex-direction:row;flex-wrap:wrap;flex:none;width:100%;margin-top:12px}
  .sidebar-dl{margin-top:12px;width:100%}
  .main{margin-left:0}
  .hero-panel-grid{grid-template-columns:1fr}
  .step-cards,.news-list,.dl-cards{grid-template-columns:1fr}
  .panel{padding:24px 20px}
  .article-panel{margin:0 20px 24px;padding:24px}
}