:root,[data-theme=dark]{--bg: #0b0d17;--bg-soft: #121524;--bg-card: #161a2c;--border: #232a40;--text: #e8ecf5;--text-soft: #9aa4bf;--primary: #cc0000;--primary-soft: #ff2d2d;--accent: #5b8cff;--maxw: 1140px;--radius: 14px;--nav-bg: rgba(11, 13, 23, .72);--hero-bg: radial-gradient(1200px 600px at 50% -10%, #1a2138 0%, var(--bg) 60%);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}[data-theme=light]{--bg: #f6f7fb;--bg-soft: #eef0f6;--bg-card: #ffffff;--border: #e2e5ee;--text: #161a2c;--text-soft: #5b6480;--primary: #cc0000;--primary-soft: #ff2d2d;--accent: #2f6bff;--nav-bg: rgba(246, 247, 251, .8);--hero-bg: radial-gradient(1200px 600px at 50% -10%, #e7ecff 0%, var(--bg) 60%)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--hero-bg);background-attachment:fixed;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}a{color:inherit;text-decoration:none}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}.navbar{position:sticky;top:0;z-index:50;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:var(--nav-bg);border-bottom:1px solid var(--border)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}.brand img{width:30px;height:30px;border-radius:7px}.nav-links{display:flex;gap:26px}.nav-links a{color:var(--text-soft);font-size:15px;transition:color .2s}.nav-links a:hover{color:var(--text)}.nav-cta{background:var(--primary);color:#fff;padding:9px 18px;border-radius:8px;font-size:14px;font-weight:600;transition:background .2s}.nav-cta:hover{background:var(--primary-soft)}.nav-toggle{display:none;background:none;border:0;color:var(--text);font-size:24px;cursor:pointer}.nav-login{background:#c00;border:1px solid #CC0000;color:#fff;padding:8px 16px;border-radius:8px;font-size:14px;font-weight:600;transition:background .2s,border-color .2s,box-shadow .2s}.nav-login:hover{background:#ff1a1a;border-color:#ff1a1a;box-shadow:0 6px 18px #cc000059}.nav-user{display:flex;align-items:center;gap:10px}.nav-user-link{display:flex;align-items:center;gap:8px}.nav-avatar{width:28px;height:28px;border-radius:50%;object-fit:cover;border:1px solid var(--border)}.nav-name{font-size:14px;color:var(--text-soft);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-logout{font-size:13px;color:var(--text-soft);padding:6px 10px;border:1px solid var(--border);border-radius:8px;transition:border-color .2s,color .2s}.nav-logout:hover{border-color:var(--primary);color:var(--primary)}.nav-tools{display:flex;align-items:center;gap:8px}.nav-lang{position:relative}.nav-lang-btn{background:transparent;border:1px solid var(--border);color:var(--text);padding:7px 12px;border-radius:8px;font-size:13px;cursor:pointer;transition:border-color .2s,color .2s;white-space:nowrap}.nav-lang-btn:hover{border-color:var(--primary);color:var(--primary)}.nav-lang-menu{position:absolute;top:calc(100% + 8px);right:0;z-index:60;background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:6px;min-width:150px;box-shadow:0 12px 30px #00000040;display:flex;flex-direction:column;gap:2px}.nav-lang-item{background:transparent;border:0;color:var(--text-soft);text-align:left;padding:8px 10px;border-radius:7px;font-size:14px;cursor:pointer;transition:background .15s,color .15s}.nav-lang-item:hover{background:var(--bg-soft);color:var(--text)}.nav-lang-item.active{color:var(--primary);font-weight:600}.nav-theme{background:transparent;border:1px solid var(--border);color:var(--text);width:38px;height:36px;border-radius:8px;font-size:16px;cursor:pointer;transition:border-color .2s,color .2s}.nav-theme:hover{border-color:var(--primary);color:var(--primary)}.hero{position:relative;overflow:hidden;padding:110px 0 90px;text-align:center}.hero-glow{position:absolute;inset:-20% 0 auto 0;height:520px;background:radial-gradient(60% 60% at 50% 0%,rgba(204,0,0,.25),transparent 70%);pointer-events:none}.hero-badge{display:inline-block;padding:6px 14px;border:1px solid var(--border);border-radius:999px;font-size:13px;color:var(--text-soft);margin-bottom:22px}.hero h1{font-size:56px;line-height:1.1;font-weight:800;letter-spacing:-1px}.hero h1 .accent{color:var(--primary)}.hero p{max-width:680px;margin:22px auto 0;color:var(--text-soft);font-size:18px}.hero-actions{margin-top:36px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;border:1px solid transparent}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-soft)}.btn-outline{border-color:var(--border);color:var(--text)}.btn-outline:hover{border-color:var(--text-soft)}.hero-stats{margin-top:54px;display:flex;gap:36px;justify-content:center;flex-wrap:wrap}.stat .v{font-size:30px;font-weight:800}.stat .l{color:var(--text-soft);font-size:13px}.section{padding:84px 0}.section-head{text-align:center;margin-bottom:52px}.section-head h2{font-size:38px;font-weight:800}.section-head p{color:var(--text-soft);margin-top:12px;font-size:16px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:transform .2s,border-color .2s}.card:hover{transform:translateY(-4px);border-color:var(--primary)}.card .ico{font-size:28px}.card h3{margin:14px 0 8px;font-size:18px}.card p{color:var(--text-soft);font-size:14px}.engine{background:var(--bg-soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.engine-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}.engine-spec{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.spec{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:18px}.spec .k{color:var(--text-soft);font-size:13px}.spec .v{font-size:20px;font-weight:700;margin-top:6px}.dl-card{text-align:center;max-width:720px;margin:0 auto}.dl-platforms{display:flex;gap:16px;justify-content:center;margin-top:28px;flex-wrap:wrap}.dl-btn{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:18px 28px;min-width:160px}.dl-btn .p{font-size:16px;font-weight:600}.dl-btn .s{color:var(--text-soft);font-size:13px}.footer{border-top:1px solid var(--border);padding:40px 0;color:var(--text-soft);font-size:14px}.footer-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}.footer a:hover{color:var(--text)}@media (max-width: 860px){.nav-links{display:none}.nav-toggle{display:block}.nav-name{display:none}.nav-user,.nav-tools{gap:6px}.nav-lang-btn{padding:6px 8px;font-size:12px}.hero h1{font-size:38px}.grid,.engine-grid{grid-template-columns:1fr}}.pf-page{min-height:100vh;padding:88px 24px 48px;background:var(--hero-bg, #0b0d17);color:var(--text, #e8ecf5);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}.pf-wrap{position:relative;z-index:1;width:100%;max-width:780px;margin:0 auto}.pf-card{background:var(--card, #151823);border:1px solid var(--card-border, rgba(255,255,255,.08));border-radius:16px;padding:32px}.pf-head{display:flex;align-items:center;gap:16px;margin-bottom:24px}.pf-avatar{width:64px;height:64px;border-radius:50%;border:2px solid var(--brand, #cc0000);object-fit:cover;box-shadow:0 0 18px var(--brand-glow, rgba(204,0,0,.4));background:#1c1c28}.pf-head h1{font-size:20px;font-weight:700;color:var(--text, #e8ecf5)}.pf-sub{font-size:12px;color:var(--text-soft, #9aa4bf);margin-top:4px}.pf-msg{border-radius:8px;padding:10px 14px;margin-bottom:18px;font-size:13px;line-height:1.5}.pf-msg.ok{background:#22c55e1f;border:1px solid rgba(34,197,94,.3);color:#4ade80}.pf-msg.err{background:#ef44441f;border:1px solid rgba(239,68,68,.3);color:#f87171}.pf-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.pf-field label{display:block;font-size:13px;color:var(--text-soft, #9aa4bf);margin-bottom:6px}.pf-field input{width:100%;padding:11px 14px;border-radius:8px;font-size:14px;font-family:inherit;background:var(--card-2, #222);border:1px solid var(--card-border, rgba(255,255,255,.08));color:var(--text, #e8ecf5);transition:border-color .2s;box-sizing:border-box}.pf-field input:focus{outline:none;border-color:var(--brand, #cc0000)}.readonly{background:#111!important;color:var(--text-soft, #9aa4bf)!important;border-style:dashed!important;cursor:not-allowed}.pf-full{grid-column:1 / -1}.pf-actions{display:flex;gap:12px;margin-top:4px;grid-column:1 / -1}.pf-btn{display:inline-flex;align-items:center;justify-content:center;flex:1;padding:12px 0;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;font-family:inherit;transition:all .2s;box-sizing:border-box}.pf-btn-primary{background:var(--brand, #cc0000);border:1px solid var(--brand, #cc0000);color:#fff}.pf-btn-primary:hover{background:var(--brand-light, #ff1a1a);box-shadow:0 6px 20px var(--brand-glow, rgba(204,0,0,.4))}.pf-btn-primary:disabled{opacity:.6;cursor:default}.pf-btn-ghost{background:transparent;border:1px solid var(--brand, #cc0000);color:var(--brand, #cc0000)}.pf-btn-ghost:hover{background:var(--brand, #cc0000);color:#fff}.pf-hint{font-size:11px;color:var(--text-soft, #9aa4bf);margin-top:14px;line-height:1.6;text-align:center;grid-column:1 / -1}.pf-hint a{color:var(--brand, #cc0000);text-decoration:none;font-weight:500}@media (max-width: 640px){.pf-card{padding:24px 16px;border-radius:12px}.pf-grid{grid-template-columns:1fr;gap:12px}.pf-page{padding:80px 12px 40px}}