:root,[data-theme="dark"]{
  --bg:#141417;--bg2:#1b1b1f;--text:#F3F0ED;--muted:#A8A29E;--faint:#78716c;
  --card:rgba(255,255,255,.045);--card-b:rgba(255,255,255,.10);--line:rgba(255,255,255,.07);
  --accent:#C96442;--accent-t:#E8896A;--accent-2:#B5532F;--on-accent:#fff;
  --glow:rgba(201,100,66,.20);--grid:rgba(255,255,255,.035);--shadow:0 10px 40px rgba(0,0,0,.35);
}
[data-theme="light"]{
  --bg:#FBF7F2;--bg2:#F4EDE4;--text:#2A211C;--muted:#6B5E55;--faint:#8c7e74;
  --card:rgba(255,255,255,.72);--card-b:rgba(80,50,30,.13);--line:rgba(80,50,30,.10);
  --accent:#C96442;--accent-t:#A9492A;--accent-2:#B04E2D;--on-accent:#fff;
  --glow:rgba(201,100,66,.16);--grid:rgba(80,50,30,.05);--shadow:0 10px 30px rgba(120,80,50,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:'Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);line-height:1.65;font-size:16px;
  background-image:
    radial-gradient(900px 480px at 50% -80px,var(--glow),transparent 70%),
    linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:auto,44px 44px,44px 44px;background-attachment:scroll;transition:background-color .2s,color .2s}
a{color:var(--accent-t);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,5.4vw,3.6rem);font-weight:800}
h2{font-size:clamp(1.5rem,3.2vw,2.1rem);font-weight:700}
h3{font-size:1.15rem;font-weight:650}
p{margin:0 0 1em}
.mono{font-family:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace}
.muted{color:var(--muted)}.small{font-size:.875rem}.center{text-align:center}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:820px}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:8px 14px;z-index:99}.skip:focus{left:8px;top:8px}
:focus-visible{outline:2px solid var(--accent-t);outline-offset:2px;border-radius:6px}

.site-header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.1rem;color:var(--text);letter-spacing:-.01em}.brand:hover{text-decoration:none}
.nav{display:flex;gap:4px;margin-left:12px}
.nav a{color:var(--muted);padding:8px 12px;border-radius:10px;font-size:.95rem;font-weight:500}
.nav a:hover,.nav a[aria-current=page]{color:var(--text);background:var(--card);text-decoration:none}
.bar-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.lang{color:var(--text);border:1px solid var(--card-b);background:var(--card);padding:6px 12px;border-radius:10px;font-size:.85rem;font-weight:600}.lang:hover{text-decoration:none;border-color:var(--accent)}
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:36px;border-radius:10px;border:1px solid var(--accent);background:var(--card);color:var(--accent-t);cursor:pointer}
.theme-toggle:hover{background:var(--accent);color:#fff}
[data-theme="dark"] .i-moon,[data-theme="light"] .i-sun{display:none}
.theme-toggle svg{display:block}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:11px 20px;font-weight:650;font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:transform .12s,box-shadow .12s,background .12s;font-family:inherit}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--on-accent);box-shadow:0 6px 22px var(--glow)}
.btn-ghost{background:var(--card);border-color:var(--card-b);color:var(--text)}.btn-ghost:hover{border-color:var(--accent)}
.btn-lg{padding:14px 28px;font-size:1.02rem}.btn-sm{padding:8px 14px;font-size:.88rem}

.card{background:var(--card);border:1px solid var(--card-b);border-radius:12px;padding:24px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:var(--shadow)}

.hero{padding:88px 24px 56px;text-align:center}
.eyebrow{display:inline-block;color:var(--accent-t);border:1px solid var(--card-b);background:var(--card);padding:5px 14px;border-radius:999px;font-size:.78rem;letter-spacing:.04em;margin-bottom:22px}
.hero h1{max-width:16em;margin:0 auto .5em}
.lead{color:var(--muted);font-size:1.12rem;max-width:44em;margin:0 auto 1.6em}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-note{margin-top:18px}
.section{padding:56px 24px}.section.tight{padding-top:8px}
.section>h2,.section>.sec-sub{text-align:center}.sec-sub{margin-bottom:28px}
.page-head{padding:64px 24px 24px;text-align:center}.page-head h1{font-size:clamp(1.9rem,4.4vw,2.8rem)}

.steps{display:flex;align-items:stretch;justify-content:center;gap:12px;padding:32px 24px;margin:0}
.step{flex:1;text-align:center;padding:8px 10px;position:relative}
.step-n{color:var(--accent-t);font-size:.8rem}
.step-ico{width:72px;height:72px;margin:10px auto 14px;border-radius:20px;display:grid;place-items:center;color:var(--accent-t);background:radial-gradient(circle at 30% 20%,var(--glow),transparent 70%),var(--card);border:1px solid var(--card-b)}
.step h3{margin-bottom:.4em}.step p{margin:0;font-size:.95rem}
.step-arrow{align-self:center;color:var(--accent-t);flex:none;opacity:.8}

.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:24px}
.feat h3{font-size:1.02rem}.feat p{margin:0;font-size:.93rem}

.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;align-items:stretch}
.plan{display:flex;flex-direction:column;position:relative}
.plan.featured{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),0 18px 50px var(--glow)}
.badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--accent);color:#fff;font-size:.75rem;font-weight:700;padding:3px 12px;border-radius:999px;white-space:nowrap}
.price{margin:.2em 0 0;display:flex;align-items:baseline;gap:8px}.amt{font-size:2.3rem;font-weight:800;letter-spacing:-.03em}.cur{color:var(--muted);font-size:.9rem}
.credits{color:var(--accent-t);margin:.1em 0 0;font-size:.95rem;word-break:break-word}
.ticks{list-style:none;padding:0;margin:14px 0 22px;flex:1}
.ticks li{position:relative;padding-left:24px;margin:8px 0;font-size:.92rem;color:var(--muted)}
.ticks li::before{content:'';position:absolute;left:2px;top:.5em;width:10px;height:6px;border-left:2px solid var(--accent-t);border-bottom:2px solid var(--accent-t);transform:rotate(-45deg)}

.faq{display:grid;gap:12px;margin-top:20px}
.faq details{padding:0}.faq summary{cursor:pointer;padding:18px 22px;font-weight:650;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';color:var(--accent-t);font-size:1.3rem;line-height:1}
.faq details[open] summary::after{content:'−'}
.faq details p{padding:0 22px 18px;margin:0}

.cta-band{text-align:center;padding:44px 24px;background:radial-gradient(600px 220px at 50% 0,var(--glow),transparent 70%),var(--card)}
.cta-band .btn{margin-top:8px}

.how{padding-left:1.2em}.how li{margin:.5em 0}
.prose-list{padding-left:1.2em}.prose-list li{margin:.5em 0;color:var(--muted)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.big{font-size:1.4rem;font-weight:700;margin:.1em 0 1em;word-break:break-all}

.legal{display:grid;grid-template-columns:240px 1fr;gap:32px;align-items:start;padding-bottom:64px}
.toc{position:sticky;top:84px;padding:18px 20px}.toc ol{margin:8px 0 0;padding-left:1.2em;font-size:.88rem}.toc li{margin:.4em 0}
.toc a{color:var(--muted)}.toc a:hover{color:var(--accent-t)}
.prose{max-width:760px}
.prose h2{font-size:1.3rem;margin-top:1.8em;scroll-margin-top:84px}.prose h2:first-child{margin-top:0}
.prose p,.prose li{color:var(--muted)}.prose b{color:var(--text)}
.prose ul,.prose ol{padding-left:1.3em}.prose li{margin:.45em 0}

.site-footer{border-top:1px solid var(--line);margin-top:40px;padding:44px 0 32px;background:color-mix(in srgb,var(--bg2) 60%,transparent)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
.foot-links{list-style:none;padding:0;margin:8px 0 0}.foot-links li{margin:6px 0}.foot-links a{color:var(--text)}
.legal-line{margin:28px 0 0;padding-top:20px;border-top:1px solid var(--line)}

@media(max-width:900px){
  .feats{grid-template-columns:repeat(2,1fr)}
  .plans{grid-template-columns:1fr;max-width:460px;margin:0 auto}
  .legal{grid-template-columns:1fr}.toc{position:static}
  .contact-grid{grid-template-columns:1fr}
  .nav{display:none}
}
@media(max-width:680px){
  .plans{grid-template-columns:1fr;max-width:460px;margin:0 auto}
  .steps{flex-direction:column;align-items:stretch}
  .step-arrow{transform:rotate(90deg);margin:0 auto}
  .foot-grid{grid-template-columns:1fr}
  .btn-sm{padding:8px 10px}
}
@media(max-width:520px){
  .wrap{padding:0 16px}
  .bar{gap:8px}.bar-right{gap:6px}
  .brand span{font-size:1rem}
  .feats{grid-template-columns:1fr}
  .hero{padding:56px 16px 36px}
  .section{padding:40px 16px}
  .page-head{padding:44px 16px 16px}
  .card{padding:20px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}