:root{
  --bordeaux:#8f1b2f;
  --bordeaux-2:#b12a44;
  --ink:#161218;
  --muted:#6e6a6d;
  --paper:#ffffff;
  --bg:#faf9fa;
  --line:#eadfe3;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
a{color:inherit;text-decoration:none}
.container{max-width:1080px;margin:0 auto;padding:20px}

/* Header Bordeaux + large logo */
.header{background:var(--bordeaux);color:#fff;border-bottom:1px solid rgba(255,255,255,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 18px}
.logo-wrap{position:relative;display:flex;align-items:center;gap:16px}
.logo-pic{height:74px;width:auto;display:block;filter:drop-shadow(0 2px 6px rgba(0,0,0,.25))}
#logo-inline{height:82px;width:auto;display:block}
@keyframes stroke-draw{to{stroke-dashoffset:0}}
.logo-inline .ring-anim{animation:stroke-draw 1.9s ease-out forwards}
.top-buttons{display:flex;gap:10px;flex-wrap:wrap}
.btn-top{
  background:rgba(255,255,255,.14);
  color:#fff;border:1px solid rgba(255,255,255,.25);
  padding:10px 14px;border-radius:14px;font-weight:700;letter-spacing:.2px;backdrop-filter:blur(4px)
}
.btn-top:hover{background:rgba(255,255,255,.24)}
.install-tip{display:none;margin-left:10px;color:#fff;font-size:.9rem}

/* Hero */
.hero{padding:26px 20px 6px}
.hero h1{margin:0 0 6px 0;font-size:2.1rem}
.hero p{margin:0;color:var(--muted)}

/* Carousel */
.carousel{position:relative;overflow:hidden;border-radius:18px;border:1px solid var(--line);background:var(--paper);box-shadow:0 10px 30px rgba(0,0,0,.06)}
.slides{display:flex;transition:transform .6s ease}
.slide{min-width:100%;display:grid;grid-template-columns:1fr 1fr;gap:0}
@media(max-width:820px){.slide{grid-template-columns:1fr}}
.slide-visual{position:relative;min-height:300px;display:flex;align-items:center;justify-content:center;border-right:1px solid var(--line);overflow:hidden}
@media(max-width:820px){.slide-visual{border-right:0;border-bottom:1px solid var(--line)}}
.slide-visual img{width:100%;height:100%;object-fit:cover;display:block}
.slide-visual canvas{width:100%;height:100%;display:block}
.slide-content{padding:18px 18px 20px 18px}
.slide-content h3{margin:4px 0 8px 0;font-size:1.4rem}
.slide-content .meta{color:var(--muted);margin-bottom:8px}
.slide-content .summary{white-space:pre-wrap;line-height:1.6}

/* Arrows */
.arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.85);border:1px solid var(--line);box-shadow:0 6px 20px rgba(0,0,0,.08)}
.arrow svg{width:22px;height:22px}
.arrow-left{left:12px}
.arrow-right{right:12px}
.arrow:hover{background:#fff}

.dots{position:absolute;bottom:10px;left:0;right:0;display:flex;justify-content:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:rgba(0,0,0,.2)}
.dot.active{background:var(--bordeaux)}

/* Grid under carousel */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:16px}
@media(max-width:820px){.grid{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:0 8px 24px rgba(0,0,0,.06);overflow:hidden}
.card h4{margin:10px 0 6px 0}
.card .meta{color:var(--muted);font-size:.92rem}
.card .cover{width:100%;aspect-ratio:16/9;border-radius:12px;border:1px solid var(--line);margin-bottom:10px;overflow:hidden}
.card .cover img,.card .cover canvas{width:100%;height:100%;object-fit:cover;display:block}
.card:hover{transform:translateY(-2px);transition:transform .2s ease}

/* Bottom tabbar — expanded */
.tabbar{position:fixed;bottom:10px;left:0;right:0;display:flex;justify-content:center;pointer-events:none;z-index:20}
.tabbar-inner{pointer-events:auto;background:var(--paper);border:1px solid var(--line);border-radius:16px;display:flex;gap:6px;padding:10px 12px;box-shadow:0 12px 30px rgba(0,0,0,.08);flex-wrap:wrap;justify-content:center}
.tabbar a{padding:10px 14px;border-radius:12px;color:var(--muted);font-weight:700}
.tabbar a.active,.tabbar a:hover{background:rgba(143,27,47,.10);color:#7e1123}

footer{padding:56px 20px 120px 20px;color:var(--muted);text-align:center}
.back{display:inline-block;margin:6px 0 14px 0;color:var(--muted)}