*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#f8fafc;--white:#fff;--ink:#0f172a;--muted:#64748b;
  --indigo:#4f46e5;--indigo2:#4338ca;--teal:#0d9488;--teal2:#14b8a6;
  --indigo-soft:#eef2ff;--teal-soft:#ccfbf1;--line:#e2e8f0;
  --display:"Space Grotesk","Noto Sans SC",system-ui,sans-serif;
  --body:"DM Sans","Noto Sans SC",system-ui,sans-serif;
  --max:1140px;--pad:clamp(20px,4vw,36px);--r:16px
}
html{scroll-behavior:smooth}
body{font-family:var(--body);background:var(--bg);color:var(--ink);line-height:1.65}
a{color:var(--indigo);text-decoration:none}
img{display:block;max-width:100%}

.hdr{
  position:sticky;top:0;z-index:100;background:rgba(248,250,252,.9);
  backdrop-filter:blur(12px);border-bottom:2px solid var(--indigo-soft)
}
.hdr-in{
  max-width:var(--max);margin:0 auto;padding:0 var(--pad);height:66px;
  display:flex;align-items:center;justify-content:space-between;gap:16px
}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:1.05rem;color:var(--ink);text-decoration:none}
.logo img{width:32px;height:32px;border-radius:10px}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{
  padding:8px 14px;border-radius:8px;font-size:.84rem;font-weight:600;
  color:var(--muted);text-decoration:none;transition:.2s
}
.nav a:hover{color:var(--ink);background:var(--indigo-soft)}
.nav a.on{background:var(--indigo);color:#fff}
.hdr-cta{
  padding:10px 18px;background:var(--teal);color:#fff;border-radius:8px;
  font-size:.82rem;font-weight:700;text-decoration:none;white-space:nowrap
}
.hdr-cta:hover{background:var(--teal2)}

.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.crumb{font-size:.72rem;color:var(--muted);padding:16px 0}
.crumb a{color:var(--indigo)}

/* Bento Hero */
.bento-hero{padding:clamp(40px,6vw,72px) 0;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:auto auto;gap:14px}
.bento-a{grid-row:1/3;background:var(--indigo);color:#fff;border-radius:var(--r);padding:clamp(28px,4vw,44px);display:flex;flex-direction:column;justify-content:flex-end;min-height:320px}
.bento-a h1{font-family:var(--display);font-size:clamp(2rem,4.5vw,3rem);font-weight:700;line-height:1.08;letter-spacing:-.03em}
.bento-a p{margin-top:14px;font-size:.92rem;opacity:.88;max-width:380px}
.bento-b{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);cursor:zoom-in;min-height:180px}
.bento-b img{width:100%;height:100%;object-fit:cover}
.bento-c{
  background:var(--teal-soft);border-radius:var(--r);padding:24px;
  border:1px solid rgba(13,148,136,.15);display:flex;flex-direction:column;justify-content:center
}
.bento-c b{font-family:var(--display);font-size:2rem;color:var(--teal);line-height:1}
.bento-c span{font-size:.78rem;color:var(--muted);margin-top:4px}
.btns{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap}
.btn{
  display:inline-flex;padding:12px 22px;border-radius:8px;font-weight:700;
  font-size:.86rem;text-decoration:none;transition:.2s;border:none;cursor:pointer
}
.btn-ind{background:#fff;color:var(--indigo)}
.btn-ind:hover{background:var(--indigo-soft)}
.btn-out{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-out:hover{background:rgba(255,255,255,.1)}
.btn-teal{background:var(--teal);color:#fff}
.btn-teal:hover{background:var(--teal2)}

.sec{padding:clamp(48px,7vw,72px) 0}
.sec-tag{font-family:var(--display);font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--teal);margin-bottom:8px}
.sec h2{font-family:var(--display);font-size:clamp(1.4rem,3vw,1.9rem);font-weight:700;letter-spacing:-.02em;margin-bottom:10px}
.sec-lead{color:var(--muted);font-size:.92rem;max-width:520px;margin-bottom:28px}

.bento-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.tile{
  padding:24px;border-radius:var(--r);background:var(--white);
  border:1px solid var(--line);border-left:4px solid var(--indigo);transition:.25s
}
.tile:hover{box-shadow:0 12px 32px rgba(79,70,229,.08);transform:translateY(-2px)}
.tile.teal{border-left-color:var(--teal)}
.tile h3{font-size:.92rem;font-weight:700;margin-bottom:6px}
.tile p{font-size:.82rem;color:var(--muted);line-height:1.55}

.method{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.method-card{
  padding:22px 16px;border-radius:var(--r);background:var(--white);
  border:1px solid var(--line);text-align:center
}
.method-card .n{font-family:var(--display);font-size:1.3rem;color:var(--indigo);margin-bottom:6px}
.method-card b{font-size:.82rem}

.timeline{position:relative;padding-left:28px;border-left:2px solid var(--indigo-soft)}
.tl{padding:0 0 32px 20px;position:relative}
.tl::before{
  content:'';position:absolute;left:-35px;top:4px;width:12px;height:12px;
  border-radius:50%;background:var(--indigo);border:3px solid var(--bg)
}
.tl time{font-size:.72rem;font-weight:700;color:var(--teal)}
.tl h3{font-size:1rem;font-weight:700;margin:6px 0 8px}
.tl p{font-size:.86rem;color:var(--muted);line-height:1.65;max-width:600px}
.tl img{margin-top:14px;border-radius:var(--r);border:1px solid var(--line);cursor:zoom-in;max-width:560px}

.dl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.dl-item{
  padding:22px 14px;border-radius:var(--r);background:var(--white);
  border:1px solid var(--line);text-align:center;text-decoration:none;color:var(--ink);transition:.2s
}
.dl-item:hover{border-color:var(--indigo);background:var(--indigo-soft)}
.dl-item .sym{font-family:var(--display);font-size:.72rem;font-weight:700;color:var(--indigo);margin-bottom:6px}
.dl-item b{display:block;font-size:.86rem}
.dl-item span{font-size:.72rem;color:var(--muted)}

.faq details{border:1px solid var(--line);border-radius:var(--r);padding:16px 20px;margin-bottom:10px;background:var(--white)}
.faq summary{font-weight:700;cursor:pointer;font-size:.9rem;list-style:none}
.faq summary::before{content:'+ ';color:var(--indigo);font-weight:800}
.faq details[open] summary::before{content:'- '}
.faq p{padding-top:10px;font-size:.84rem;color:var(--muted);line-height:1.65}

.page-h{padding:40px 0 28px;max-width:640px}
.page-h h1{font-family:var(--display);font-size:clamp(1.8rem,4vw,2.5rem);font-weight:700;margin-bottom:8px}
.page-h p{color:var(--muted)}
.hero-img{border-radius:var(--r);border:1px solid var(--line);margin-bottom:32px;cursor:zoom-in}

.foot{
  margin-top:64px;padding:28px 0;border-top:1px solid var(--line);
  font-size:.76rem;color:var(--muted)
}
.foot-row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:10px}
.foot a{font-weight:600}
.links{font-size:.74rem;padding-top:10px;border-top:1px solid var(--line)}

.prose-block{margin:32px 0;padding:28px 32px;background:#fff;border-radius:var(--r);border:1px solid var(--line)}
.prose-block h2{font-family:var(--display);font-size:1.45rem;margin-bottom:14px;color:var(--indigo)}
.prose-block h3{font-family:var(--display);font-size:1.05rem;margin:20px 0 8px}
.prose-block p,.prose-block li{font-size:.9rem;line-height:1.78;color:var(--text);margin-bottom:10px}
.prose-block ul,.prose-block ol{padding-left:22px;margin-bottom:14px}

.zoom{
  position:fixed;inset:0;z-index:999;background:rgba(15,23,42,.8);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:.3s;padding:24px
}
.zoom.open{opacity:1;visibility:visible}
.zoom img{max-width:900px;width:100%;border-radius:var(--r)}
.zoom-x{position:absolute;top:20px;right:24px;width:40px;height:40px;border-radius:8px;background:#fff;border:none;cursor:pointer}

@media(max-width:860px){
  .bento-hero,.bento-grid,.method,.dl-grid{grid-template-columns:1fr}
  .bento-a{grid-row:auto;min-height:auto}
  .nav{display:none}
}