:root{
    --bg: #0b0f1a;
    --panel: rgba(255,255,255,.06);
    --panel2: rgba(255,255,255,.09);
    --text: rgba(255,255,255,.92);
    --muted: rgba(255,255,255,.72);
    --muted2: rgba(255,255,255,.58);
    --border: rgba(255,255,255,.12);
    --brand1: #7c4dff;
    --brand2: #00d4ff;
    --ok: #2ef2a6;
    --warn: #ffcf5a;
    --shadow: 0 18px 60px rgba(0,0,0,.45);
    --radius: 18px;
    --radius2: 26px;
    --max: 1120px;
    --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, "Noto Sans CJK SC", "Noto Sans", sans-serif;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
    margin:0;
    font-family: var(--sans);
    color: var(--text);
    background:
    radial-gradient(900px 400px at 12% 8%, rgba(124,77,255,.35), transparent 55%),
    radial-gradient(700px 380px at 88% 20%, rgba(0,212,255,.25), transparent 50%),
    radial-gradient(900px 520px at 50% 90%, rgba(46,242,166,.12), transparent 55%),
    linear-gradient(180deg, #070a12 0%, #0b0f1a 55%, #080b14 100%);
    overflow-x:hidden;
}

a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 18px}
.nav{
    position:sticky; top:0; z-index:50;
    backdrop-filter: blur(14px);
    background: rgba(10,14,25,.55);
    border-bottom: 1px solid var(--border);
}
.nav-inner{
    display:flex; align-items:center; justify-content:space-between;
    gap:14px; padding:12px 0;
}
.brand{
    display:flex; align-items:center; gap:10px;
    font-weight:800; letter-spacing:.4px;
}
.logo{
    width:36px;height:36px;border-radius:12px;
    background: conic-gradient(from 230deg, var(--brand1), var(--brand2), var(--ok), var(--brand1));
    box-shadow: 0 10px 28px rgba(124,77,255,.18);
    position:relative;
}
.logo:after{
    content:""; position:absolute; inset:9px;
    background: rgba(0,0,0,.26); border-radius:10px;
    border:1px solid rgba(255,255,255,.10);
}
.nav-links{
    display:flex; align-items:center; gap:14px; flex-wrap:wrap;
    color: var(--muted);
    font-size: 14px;
}
.nav-links a{
    padding:8px 10px; border-radius: 12px;
    border:1px solid transparent;
}
.nav-links a:hover{
    color: var(--text);
    background: rgba(255,255,255,.06);
    border-color: rgba(255,255,255,.10);
}

.hero{padding:46px 0 20px}
.hero-grid{
    display:grid; grid-template-columns: 1.15fr .85fr;
    gap:18px; align-items:stretch;
}
@media (max-width: 920px){
    .hero-grid{grid-template-columns:1fr}
}

.card{
    background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
    border:1px solid var(--border);
    border-radius: var(--radius2);
    box-shadow: var(--shadow);
}

.hero-left{padding:26px 24px}
.badge{
    display:inline-flex; align-items:center; gap:8px;
    padding:8px 12px; border-radius: 999px;
    background: rgba(255,255,255,.07);
    border:1px solid rgba(255,255,255,.10);
    color: var(--muted);
    font-size: 13px;
}
.dot{
    width:9px;height:9px;border-radius:99px;
    background: var(--ok);
    box-shadow: 0 0 0 5px rgba(46,242,166,.12);
}
h1{
    margin:14px 0 10px;
    font-size: clamp(28px, 3.6vw, 44px);
    line-height: 1.08;
    letter-spacing: -.5px;
}
.sub{
    margin:0;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.7;
    max-width: 60ch;
}
.cta-row{
    display:flex; flex-wrap:wrap; gap:10px;
    margin-top: 18px;
}
.btn{
    display:inline-flex; align-items:center; justify-content:center;
    gap:10px;
    padding:12px 14px;
    border-radius: 14px;
    border:1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.06);
    color: var(--text);
    font-weight: 650;
    font-size: 14px;
    cursor:pointer;
    transition: transform .12s ease, background .12s ease, border-color .12s ease;
    user-select:none;
}
.btn:hover{transform: translateY(-1px); background: rgba(255,255,255,.09); border-color: rgba(255,255,255,.18);}
.btn.primary{
    background: linear-gradient(135deg, rgba(124,77,255,.95), rgba(0,212,255,.85));
    border-color: rgba(255,255,255,.10);
    color: #fff;
}
.btn.primary:hover{background: linear-gradient(135deg, rgba(124,77,255,1), rgba(0,212,255,1));}
.btn.ghost{background: rgba(255,255,255,.03);}
.btn small{font-weight:600; opacity:.9}
.btn .icon{
    width:18px;height:18px;border-radius:6px;
    background: rgba(0,0,0,.16);
    display:grid; place-items:center;
    border:1px solid rgba(255,255,255,.14);
    color: rgba(255,255,255,.88);
    font-size: 12px;
    font-family: var(--mono);
}

.hero-right{padding:18px}
.mock{
    height: 100%;
    border-radius: var(--radius2);
    border:1px solid rgba(255,255,255,.12);
    background:
    radial-gradient(500px 220px at 30% 30%, rgba(124,77,255,.28), transparent 55%),
    radial-gradient(500px 240px at 70% 30%, rgba(0,212,255,.20), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
    padding:18px;
    overflow:hidden;
    position:relative;
}
.mock:before{
    content:"";
    position:absolute; inset:-40px;
    background: radial-gradient(300px 180px at 20% 80%, rgba(46,242,166,.18), transparent 60%);
    filter: blur(2px);
}
.mock-top{
    position:relative;
    display:flex; align-items:center; justify-content:space-between;
    margin-bottom: 14px;
    color: var(--muted);
    font-size: 13px;
}
.pill{
    display:inline-flex; gap:8px; align-items:center;
    padding:8px 10px; border-radius: 999px;
    background: rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.10);
}
.bars{
    display:flex; gap:4px; align-items:flex-end;
}
.bars span{
    width:4px; border-radius: 99px;
    background: linear-gradient(180deg, rgba(0,212,255,.9), rgba(124,77,255,.85));
    opacity:.85;
    animation: bounce 1.1s infinite ease-in-out;
}
.bars span:nth-child(1){height:8px; animation-delay:.0s}
.bars span:nth-child(2){height:14px; animation-delay:.12s}
.bars span:nth-child(3){height:10px; animation-delay:.24s}
.bars span:nth-child(4){height:18px; animation-delay:.36s}
.bars span:nth-child(5){height:12px; animation-delay:.48s}
@keyframes bounce{
    0%,100%{transform: translateY(0); opacity:.72}
    50%{transform: translateY(-4px); opacity:1}
}

.mock-body{
    position:relative;
    display:grid; gap:10px;
    margin-top: 8px;
}
.mini{
    background: rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.10);
    border-radius: 18px;
    padding: 12px;
}
.mini h3{
    margin:0 0 6px;
    font-size: 14px;
    letter-spacing:.2px;
}
.mini p{margin:0; color: var(--muted); font-size: 13px; line-height: 1.6}
.kvs{
    display:grid; grid-template-columns: 1fr 1fr;
    gap:10px;
}
@media (max-width: 520px){
    .kvs{grid-template-columns:1fr}
}

section{padding:22px 0}
.section-title{
    display:flex; align-items:flex-end; justify-content:space-between; gap:14px;
    margin: 6px 0 14px;
}
.section-title h2{
    margin:0;
    font-size: 22px;
    letter-spacing: -.2px;
}
.section-title p{
    margin:0; color: var(--muted2); font-size: 13px;
}

.grid3{
    display:grid; grid-template-columns: repeat(3, 1fr);
    gap:12px;
}
@media (max-width: 920px){
    .grid3{grid-template-columns:1fr}
}

.feature{
    padding:16px;
    border-radius: var(--radius);
    background: rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.10);
}
.feature .tag{
    display:inline-flex; align-items:center; gap:8px;
    font-size: 12px; color: var(--muted);
    padding:6px 10px;
    border-radius: 999px;
    background: rgba(0,0,0,.18);
    border:1px solid rgba(255,255,255,.10);
    margin-bottom: 10px;
}
.feature h3{margin:0 0 8px; font-size: 16px}
.feature p{margin:0; color: var(--muted); line-height:1.7; font-size: 14px}

.download{
    padding:18px;
    display:grid;
    grid-template-columns: 1.2fr .8fr;
    gap:12px;
    align-items:center;
}
@media (max-width: 920px){
    .download{grid-template-columns:1fr}
}
.download .note{
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}
.download .box{
    background: rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.10);
    border-radius: var(--radius);
    padding: 14px;
}
.kv{
    display:grid; gap:8px;
    font-size: 13px;
    color: var(--muted);
}
.kv b{color: var(--text); font-weight: 700}
.kv .line{display:flex; justify-content:space-between; gap:10px; align-items:center}
.kv code{
    font-family: var(--mono);
    background: rgba(0,0,0,.22);
    border:1px solid rgba(255,255,255,.10);
    padding: 2px 8px;
    border-radius: 10px;
    color: rgba(255,255,255,.86);
}

.faq{
    padding: 16px;
    border-radius: var(--radius2);
    background: rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.10);
}
details{
    border:1px solid rgba(255,255,255,.10);
    background: rgba(255,255,255,.04);
    border-radius: 16px;
    padding: 12px 12px;
    margin: 10px 0;
}
summary{
    cursor:pointer;
    font-weight: 700;
    outline:none;
}
details p{
    margin:10px 0 0;
    color: var(--muted);
    line-height: 1.75;
    font-size: 14px;
}

.footer{
    padding: 26px 0 34px;
    color: var(--muted2);
    font-size: 13px;
    border-top: 1px solid rgba(255,255,255,.08);
    margin-top: 14px;
}
.footer .cols{
    display:grid; grid-template-columns: 1.2fr .8fr;
    gap: 12px;
}
@media (max-width: 920px){
    .footer .cols{grid-template-columns:1fr}
}
.footer a{color: rgba(255,255,255,.78)}
.footer a:hover{color: rgba(255,255,255,.92); text-decoration: underline}
.tiny{
    margin-top: 10px;
    opacity: .9;
    line-height: 1.7;
}

/* Toast */
.toast{
    position: fixed;
    left: 50%;
    bottom: 18px;
    transform: translateX(-50%);
    padding: 10px 12px;
    border-radius: 14px;
    background: rgba(10,14,25,.88);
    border: 1px solid rgba(255,255,255,.14);
    color: rgba(255,255,255,.92);
    font-size: 13px;
    backdrop-filter: blur(10px);
    box-shadow: 0 18px 60px rgba(0,0,0,.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
    max-width: min(560px, calc(100vw - 24px));
}
.toast.show{
    opacity: 1;
    transform: translateX(-50%) translateY(-2px);
}