:root{--red: #c8102e;--red-soft: #fbe7ea;--ink: #1d2433;--muted: #5b6577;--line: #e6e8ee;--bg: #f7f8fb;--card: #ffffff;--gold: #d4a017;--green: #2e8b57;--shadow: 0 6px 24px rgba(29, 36, 51, .07)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}.wrap{max-width:1080px;margin:0 auto;padding:0 24px}.langswitch{position:fixed;top:16px;right:16px;z-index:50;display:flex;gap:2px;background:#fff;padding:4px;border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow)}.langswitch button{border:0;background:transparent;cursor:pointer;font-weight:800;font-size:13px;color:var(--muted);padding:7px 14px;border-radius:999px;transition:all .15s}.langswitch button.on{background:var(--red);color:#fff}.hero{background:linear-gradient(135deg,#fff 0%,var(--red-soft) 100%);border-bottom:4px solid var(--red);padding:64px 0 56px;text-align:center}.flag{display:inline-flex;flex-direction:column;width:96px;height:64px;border-radius:8px;overflow:hidden;box-shadow:var(--shadow);margin-bottom:22px}.flag span{flex:1}.flag .r{background:var(--red)}.flag .w{background:#fff}.hero h1{font-size:44px;letter-spacing:-.5px;line-height:1.1}.hero .sub{color:var(--red);font-weight:700;font-size:18px;margin-top:8px;text-transform:uppercase;letter-spacing:2px}.hero p{color:var(--muted);max-width:620px;margin:18px auto 0;font-size:17px}section{padding:56px 0}.section-head{display:flex;align-items:center;gap:14px;margin-bottom:30px}.section-head .num{width:42px;height:42px;flex:none;border-radius:12px;background:var(--red);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px}.section-head h2{font-size:27px;letter-spacing:-.3px}.section-head .de{color:var(--muted);font-size:14px;font-weight:600}.timeline{position:relative;padding-left:4px}.tl-row{display:grid;grid-template-columns:120px 1fr;gap:24px;position:relative}.tl-row:before{content:"";position:absolute;left:119px;top:8px;bottom:-28px;width:3px;background:var(--line)}.tl-row:last-child:before{display:none}.tl-year{font-size:22px;font-weight:800;color:var(--red);text-align:right;position:relative}.tl-year:after{content:"";position:absolute;right:-25px;top:6px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--red)}.tl-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:var(--shadow);margin-bottom:28px}.tl-card .icon{font-size:26px}.tl-card h3{font-size:17px;margin:6px 0 4px}.tl-card p{color:var(--muted);font-size:15px}.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}.cmp{border-radius:16px;padding:26px;box-shadow:var(--shadow);border:1px solid var(--line);background:var(--card)}.cmp.dict{border-top:5px solid #8a1c2b}.cmp.demo{border-top:5px solid var(--green)}.cmp .tag{font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:1px}.cmp.dict .tag{color:#8a1c2b}.cmp.demo .tag{color:var(--green)}.cmp .big{font-size:22px;font-weight:800;margin:4px 0 14px}.cmp ul{list-style:none;display:grid;gap:10px}.cmp li{display:flex;gap:10px;align-items:flex-start;font-size:15px}.cmp li .mk{flex:none;font-weight:800}.cmp.dict li .mk{color:#8a1c2b}.cmp.demo li .mk{color:var(--green)}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.pillar{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;text-align:center;box-shadow:var(--shadow)}.pillar .em{font-size:40px}.pillar h3{font-size:17px;margin:12px 0 6px}.pillar p{color:var(--muted);font-size:14px}.rebuild{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:stretch}.info-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:var(--shadow)}.info-card .em{font-size:34px}.info-card h3{font-size:18px;margin:10px 0 8px}.info-card p{color:var(--muted);font-size:15px}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.chip{background:var(--red-soft);color:var(--red);font-weight:700;font-size:13px;padding:6px 12px;border-radius:20px}.quiz{display:grid;gap:14px}.q{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--gold);border-radius:12px;padding:18px 20px;box-shadow:var(--shadow);cursor:pointer;transition:border-color .15s}.q:hover{border-left-color:var(--red)}.q .qhead{display:flex;gap:12px;align-items:flex-start}.q .chev{margin-left:auto;color:var(--gold);font-weight:800;font-size:16px}.q.is-open{border-left-color:var(--red)}.q .qn{flex:none;width:28px;height:28px;border-radius:8px;background:var(--gold);color:#fff;display:grid;place-items:center;font-weight:800;font-size:14px}.q .qt{font-weight:600;font-size:16px}.q .ans{margin-top:12px;padding:12px 14px;background:#eefcf3;border-radius:8px;color:var(--green);font-weight:700;font-size:15px;display:flex;gap:8px;align-items:flex-start}.q .ans .x{display:none}.q .hint{font-size:13px;color:var(--muted);margin-top:8px;font-style:italic}.keys{margin-top:12px;display:grid;gap:8px}.keyrow{display:flex;gap:10px;align-items:flex-start;font-size:14px;padding:8px 10px;background:#fafbfd;border:1px solid var(--line);border-radius:8px}.keyrow .kn{flex:none;min-width:40px;text-align:center;background:var(--red-soft);color:var(--red);font-weight:800;padding:3px 8px;border-radius:6px;font-size:13px}.keyrow .kqa{display:flex;flex-direction:column;gap:3px}.keyrow .kq{color:var(--ink)}.keyrow .ka{color:var(--green);font-weight:700}[dir=rtl] .keyrow{flex-direction:row-reverse}footer{background:var(--ink);color:#cdd3df;text-align:center;padding:32px 0;font-size:14px}footer b{color:#fff}[dir=rtl] body,[dir=rtl] .quiz,[dir=rtl] .cmp,[dir=rtl] .pillar,[dir=rtl] .info-card{text-align:right}[dir=rtl] .tl-row{direction:ltr}[dir=rtl] .tl-card{direction:rtl;text-align:right}[dir=rtl] .q{border-left:1px solid var(--line);border-right:5px solid var(--gold)}[dir=rtl] .q.is-open,[dir=rtl] .q:hover{border-right-color:var(--red)}[dir=rtl] .chev{margin-left:0;margin-right:auto}[dir=rtl] .cmp li{flex-direction:row}@media (max-width: 760px){.compare,.rebuild,.grid3{grid-template-columns:1fr}.hero h1{font-size:32px}.tl-row{grid-template-columns:80px 1fr}.tl-row:before{left:79px}}