:root{
  --red:#c81e1e;
  --red-d:#9d1218;
  --ink:#1c1414;
  --mut:#5e554f;
  --paper:#f4f0eb;
  --bg:#fff;
  --line:#e3dbd3;
  --dark:#1a1214;
  --ok:#1c6b45;
  --no:#a33b32;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Noto Naskh Arabic","Nirmala UI","Microsoft YaHei",serif;
  --sans:"Segoe UI","Helvetica Neue",Arial,"Noto Sans","Noto Sans Arabic","Noto Sans Devanagari","Nirmala UI","PingFang SC","Microsoft YaHei",sans-serif;
  --shadow:0 18px 40px rgba(28,20,20,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.6 var(--sans);color:var(--ink);background:var(--paper)}
img,video{max-width:100%;height:auto}
a{color:var(--red);text-underline-offset:2px}
h1,h2{font-family:var(--serif);font-weight:560;letter-spacing:-.02em;line-height:1.12}
h1{font-size:clamp(2.15rem,4.4vw,3.45rem);margin:.2em 0 .35em}
h2{font-size:clamp(1.7rem,3vw,2.35rem);margin:0 0 .6em}
h3{font-family:var(--sans);font-size:1.05rem;line-height:1.3;letter-spacing:0;margin:0 0 .4em}
p{margin:.6em 0}
::selection{background:#f3c9c6;color:var(--ink)}
:focus-visible{outline:2px solid var(--red);outline-offset:2px}

.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:720px}
.row{display:flex;align-items:center;gap:14px;min-height:72px}

.skip{position:absolute;inset-inline-start:8px;top:8px;transform:translateY(-150%);background:#fff;padding:8px 12px;z-index:40;border:1px solid var(--line)}
.skip:focus{transform:none}

.hdr{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
.logo{display:block;line-height:0;flex-shrink:0}
.logo img{display:block;height:30px;width:auto}
.lang,.nav-btn,.hdr .btn{flex-shrink:0}
.nav{display:flex;gap:22px;margin-inline-start:auto;align-items:center}
.nav a{color:var(--ink);text-decoration:none;font-size:14.5px;font-weight:600}
.nav a:hover{color:var(--red)}
.nav-toggle{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.nav-btn{display:none}
.nav-extra{display:none}

.lang{position:relative}
.lang-short{display:none}
.lang summary{cursor:pointer;list-style:none;padding:7px 10px;border:1px solid var(--line);border-radius:4px;font-size:14px;font-weight:600;background:#fff}
.lang summary::-webkit-details-marker{display:none}
.lang ul{position:absolute;inset-inline-end:0;top:calc(100% + 6px);background:#fff;border:1px solid var(--line);border-radius:6px;list-style:none;padding:6px;margin:0;min-width:190px;box-shadow:var(--shadow);z-index:30}
.lang li a{display:block;padding:8px 10px;color:var(--ink);text-decoration:none;border-radius:4px}
.lang li a:hover,.lang a[aria-current]{background:var(--paper);color:var(--red)}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;background:var(--red);color:#fff;text-decoration:none;border:1px solid var(--red);border-radius:4px;font-weight:700;font-size:15px;line-height:1}
.btn:hover{background:var(--red-d);border-color:var(--red-d);color:#fff}
.btn.ghost{background:transparent;color:var(--ink);border-color:#cfc6be}
.btn.ghost:hover{background:#fff;border-color:var(--ink);color:var(--ink)}
.btn.sm{min-height:38px;padding:0 12px;font-size:14px}
.btn.lg{min-height:48px;padding:0 20px}
.hdr .btn.ghost{border-color:transparent;color:var(--mut);background:transparent}
.hdr .btn.ghost:hover{color:var(--ink)}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 0}
.actions .btn{margin:0}

.hero{background:var(--paper);padding:64px 0 56px}
.hero h1{max-width:16ch}
.two{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}
.badge{display:block;background:none;border:0;border-radius:0;padding:0;color:var(--red);font-weight:700;font-size:13px;letter-spacing:.01em}
.lead{font-size:1.08rem;color:var(--mut);max-width:42rem}
.price-tag{font-family:var(--serif);font-size:1.45rem;font-weight:560;color:var(--ink);margin:14px 0 0}
.hero-img img,.two img{border-radius:8px;border:1px solid var(--line)}
.card img{width:48px;height:48px;border:0;border-radius:0}

.sec{padding:72px 0;background:#fff;border-top:1px solid var(--line)}
.hero + .sec{border-top:0}
.alt{background:var(--paper)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:28px 32px}
.card{background:transparent;border:0;border-radius:0;padding:0;text-decoration:none;color:inherit}
.card p{color:var(--mut);margin:0}
.cards:not(.three) .card{border-top:2px solid var(--red);padding-top:16px}
.card h2{font-family:var(--serif);font-size:1.35rem;font-weight:560;letter-spacing:-.02em;line-height:1.2;margin:0 0 .45em}
.card h2 a{color:inherit;text-decoration:none}
.card h2 a:hover,.card:hover h2{color:var(--red)}
.cards.three{gap:16px}
.cards.three .card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:28px 24px 24px}

.three{grid-template-columns:repeat(3,1fr);align-items:stretch}
.price{display:flex;flex-direction:column;min-height:100%}
.price .btn{margin-top:auto;align-self:flex-start}
.price ul{padding-inline-start:18px;margin:8px 0 22px;color:var(--mut)}
.price li{margin:6px 0}
.amt{font-family:var(--serif);font-size:2.8rem;font-weight:560;line-height:1;margin:.15em 0 .2em;color:var(--red)}
.amt small{font-size:.45em}
.cards.three .price.hot{background:var(--dark);border-color:var(--dark);color:#f6f1ec}
.price.hot p,.price.hot li{color:#d7cdc6}
.price.hot h3,.price.hot .amt{color:#fff}
.price.hot .btn{background:var(--red);border-color:var(--red);color:#fff}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;list-style:none;padding:8px 0 0;margin:0;counter-reset:s}
.steps li{background:transparent;border:0;border-radius:0;padding:0;counter-increment:s}
.steps li:before{content:counter(s,decimal-leading-zero);display:block;font-family:var(--serif);font-size:2.1rem;font-weight:560;color:var(--red);margin-bottom:8px}
.steps p{color:var(--mut)}

.demo{margin:36px 0 0}
.demo video{width:100%;border-radius:8px;border:1px solid var(--line);background:#111;display:block}

.faq{background:transparent;border:0;border-top:1px solid var(--line);border-radius:0;padding:0;margin:0}
.faq:last-of-type{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:650;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 2px;min-height:52px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";font-family:var(--serif);font-size:1.5rem;line-height:1;color:var(--red);flex:none}
.faq[open] summary:after{content:"–"}
.faq p{margin:0;padding:0 28px 16px 2px;color:var(--mut)}

.cta{background:var(--dark);color:#f6f1ec;border-top:0}
.cta h2,.cta p{color:#f6f1ec}
.cta p{color:#d7cdc6}
.cta-row{display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta .btn{background:var(--red);border-color:var(--red);color:#fff}
.cta .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.cta .btn.ghost:hover{border-color:#fff;color:#fff}

.links{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:0 32px}
.links a{display:flex;align-items:center;min-height:48px;padding:10px 0;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line)}
.links a:hover{color:var(--red)}
.bc{font-size:13px;color:var(--mut);padding-top:18px;padding-bottom:0}
.bc a{color:var(--mut);text-decoration:none}
.bc a:hover{color:var(--red)}
.prose h2{margin-top:1.5em}
.prose p,.prose li{color:var(--ink)}
.meta{color:var(--mut);font-size:.92rem}

.tbl{overflow-x:auto}
table{border-collapse:collapse;width:100%;margin:8px 0 24px}
th,td{border:0;border-bottom:1px solid var(--line);padding:12px 10px;text-align:start;vertical-align:top}
thead th{font-size:12px;font-weight:700;color:var(--mut);background:transparent}
tbody th{font-weight:650}

.code{background:var(--dark);color:#f6f1ec;padding:18px 20px;border-radius:8px;overflow:auto;direction:ltr;text-align:left;font-size:14px;line-height:1.55}

.ftr{background:var(--dark);color:#d7cdc6;padding:56px 0 88px;border-top:0}
.ftr a{color:#d7cdc6;text-decoration:none}
.ftr a:hover{color:#fff}
.ftr h3{color:#fff;font-size:.95rem;margin:0 0 12px}
.ftr ul{list-style:none;padding:0;margin:0}
.ftr li{margin:0}
.ftr li a{display:inline-flex;min-height:32px;align-items:center}
.grid4{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.copy{font-size:.82rem;color:#b7aaa4;margin-top:32px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12)}
.ftr img{filter:brightness(0) invert(1);height:26px;width:auto}

.wa-float{position:fixed;z-index:30;right:18px;bottom:calc(18px + env(safe-area-inset-bottom));width:60px;height:60px;display:block;line-height:0;filter:drop-shadow(0 8px 16px rgba(28,20,20,.28))}
.wa-float img{width:60px;height:60px;max-width:none;display:block}
.wa-float:hover{transform:translateY(-2px)}

.hero-viz{background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:none;padding:0;overflow:hidden;font:500 14px/1.4 ui-monospace,"Cascadia Mono",Consolas,monospace;direction:ltr}
.viz-h{display:flex;justify-content:space-between;align-items:center;color:#f6f1ec;background:var(--dark);margin:0;padding:12px 14px}
.viz-p{width:42%;height:4px;border-radius:4px;background:linear-gradient(90deg,var(--red) var(--w,0%),rgba(255,255,255,.2) 0);animation:prog 3.2s ease-out forwards}
@property --w{syntax:"<percentage>";inherits:false;initial-value:0%}
@keyframes prog{to{--w:100%}}
.hero-viz ul{list-style:none;margin:0;padding:8px}
.hero-viz li{display:flex;justify-content:space-between;padding:9px 10px;border-radius:6px;margin:5px 0;background:#f6f3ef;animation:mark .5s var(--d) forwards}
.hero-viz li b:after{content:"…";color:var(--mut)}
.hero-viz li.ok{--c:#e7f3ec}
.hero-viz li.no{--c:#f8e8e6}
.hero-viz li.ok b:after{content:"✓";color:var(--ok);animation:fade 0s var(--d) both}
.hero-viz li.no b:after{content:"✕";color:var(--no);animation:fade 0s var(--d) both}
.hero-viz li.no{animation:mark .5s var(--d) forwards,strike .4s calc(var(--d) + .5s) forwards}
@keyframes mark{to{background:var(--c)}}
@keyframes strike{to{opacity:.5;text-decoration:line-through}}
@keyframes fade{from{opacity:0}}
.viz-f{display:flex;gap:16px;margin:0;padding:10px 14px 12px;font-size:12px;border-top:1px solid var(--line)}
.viz-f .k{color:var(--ok)}
.viz-f .x{color:var(--no)}

@media(max-width:1180px) and (min-width:901px){
  .nav{gap:14px}
  .nav a{font-size:13.5px}
  .row{gap:10px}
}
@media(min-width:901px){
  .nav-toggle{display:none}
}
@media(max-width:900px){
  .nav-btn{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 12px;border:1px solid var(--line);border-radius:4px;background:#fff;font-weight:700;font-size:14px;cursor:pointer;order:4}
  .nav-bars{width:16px;height:2px;background:var(--ink);display:block;position:relative}
  .nav-bars:before,.nav-bars:after{content:"";position:absolute;inset-inline-start:0;width:16px;height:2px;background:var(--ink)}
  .nav-bars:before{top:-5px}
  .nav-bars:after{top:5px}
  .nav-toggle:focus-visible + .nav-btn{outline:2px solid var(--red);outline-offset:2px}
  .nav-toggle:checked ~ .nav-btn .nav-bars{background:transparent}
  .nav-toggle:checked ~ .nav-btn .nav-bars:before{top:0;transform:rotate(45deg)}
  .nav-toggle:checked ~ .nav-btn .nav-bars:after{top:0;transform:rotate(-45deg)}
  .logo{margin-inline-end:auto}
  .lang{order:2}
  .hdr .btn{order:3}
  .lang-long{display:none}
  .lang-short{display:inline;font-weight:700}
  .nav{display:none;position:absolute;inset-inline:0;top:100%;margin:0;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:4px 24px 12px;box-shadow:var(--shadow)}
  .nav > a{padding:14px 0;border-top:1px solid var(--line);font-size:16px}
  .nav-toggle:checked ~ .nav{display:flex}
  .nav-extra{display:flex;flex-direction:column;gap:8px;margin-top:4px;padding:14px 0 8px;border-top:1px solid var(--line)}
  .nav-extra .btn{width:100%;color:#fff;font-size:15px;font-weight:700;text-decoration:none}
  .nav-extra .btn.ghost{display:inline-flex;border-color:#cfc6be;color:var(--ink);background:#fff}
  .row > .btn{display:none}
  .logo img{height:28px}
  .lang ul{position:fixed;top:68px;inset-inline:12px;min-width:0;z-index:40}
  .two,.steps,.grid4,.three{grid-template-columns:1fr}
  .links{grid-template-columns:1fr}
  .hero{padding:36px 0 32px}
  .hero h1{max-width:none}
  .sec{padding:48px 0}
  .cta-row{flex-direction:column;align-items:stretch}
  .grid4{grid-template-columns:1fr 1fr;gap:24px}
  .wa-float{right:14px;bottom:calc(14px + env(safe-area-inset-bottom));width:56px;height:56px}
  .wa-float img{width:56px;height:56px}
}
@media(max-width:560px){
  .wrap{padding:0 16px}
  .grid4{grid-template-columns:1fr}
  .actions{flex-direction:column;align-items:stretch}
  .actions .btn{width:100%}
}
@media(max-width:400px){
  .nav-word{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
  h1{font-size:1.85rem}
  .hero{padding:28px 0 24px}
  .lead{font-size:1rem}
}
@media(prefers-reduced-motion:reduce){
  .hero-viz *{animation:none!important}
  .wa-float:hover{transform:none}
  html{scroll-behavior:auto}
}