.duo{position:relative;overflow:hidden;margin:0;isolation:isolate;}
.duo img{width:100%;height:100%;object-fit:cover;display:block;
  filter:grayscale(1) contrast(1.32) brightness(.92);}
.duo::before{content:'';position:absolute;inset:0;background:#0E3A79;mix-blend-mode:multiply;}
.duo::after{content:'';position:absolute;inset:0;background:#DDBA2A;mix-blend-mode:screen;opacity:.18;}
/* Grain : masque la montée en taille d'une photo de 320 px de large. */
.duo .grain,.grain{position:absolute;inset:0;pointer-events:none;opacity:.16;
  background-image:radial-gradient(rgba(255,255,255,.6) .5px,transparent .5px);
  background-size:3px 3px;mix-blend-mode:overlay;}
:root{--sp:0;--alt:#F3F6FB;}
.ob__orbit{position:fixed;top:50%;left:50%;width:min(1100px,120vw);transform:translate(-50%,-50%);
  z-index:0;pointer-events:none;}
.ob__orbit svg{width:100%;height:auto;}
.ob__r1,.ob__r2,.ob__r3{transform-origin:400px 400px;
  transform:rotate(calc(var(--orb,0) * 1deg));}
.ob__r2{transform:rotate(calc(var(--orb,0) * -1.6deg));}
.ob__r3{transform:rotate(calc(var(--orb,0) * 2.4deg));}
main{position:relative;z-index:1;}
.ob__in{max-width:1120px;margin:0 auto;padding:0 28px;}
.ob__hero{padding:108px 0 96px;}
.ob__hero h1{font-weight:800;font-size:clamp(2.3rem,6.4vw,4.6rem);line-height:1.02;
  letter-spacing:-.036em;max-width:15ch;color:var(--navy-800);}
.ob__phrase{margin-top:26px;font-size:1.14rem;line-height:1.56;max-width:52ch;color:var(--ink-700);}
.ob__acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.ob__s{padding:92px 0;border-top:1px solid var(--ink-100);
  background:rgba(255,255,255,.82);backdrop-filter:blur(3px);}
.ob__s--alt{background:rgba(243,246,251,.9);}
.ob__s h2{font-weight:800;font-size:clamp(1.9rem,4.2vw,2.9rem);line-height:1.06;letter-spacing:-.032em;
  color:var(--navy-800);}
.ob__sub{margin-top:16px;color:var(--ink-700);max-width:70ch;}
.ob__ints{margin-top:42px;border-top:1px solid var(--ink-100);}
.ob__i{display:block;padding:28px 0;border-bottom:1px solid var(--ink-100);text-decoration:none;
  transition:transform .3s var(--ease);}
.ob__i:hover{transform:translateX(14px);}
.ob__i b{font-family:var(--font-display);font-weight:700;font-size:clamp(1.25rem,2.8vw,1.8rem);
  letter-spacing:-.026em;color:var(--navy-800);}
.ob__i em{display:block;margin-top:7px;font-style:normal;color:var(--ink-700);}
.ob__forms{margin-top:36px;border-top:1px solid var(--ink-100);}
.ob__f{display:grid;grid-template-columns:minmax(0,1fr) 120px 180px;gap:18px;align-items:baseline;
  padding:18px 0;border-bottom:1px solid var(--ink-100);text-decoration:none;
  transition:transform .26s var(--ease);}
.ob__f:hover{transform:translateX(10px);}
.ob__f b{font-family:var(--font-display);font-weight:600;font-size:1.05rem;color:var(--navy-800);}
.ob__f span,.ob__f em{font-size:.9rem;font-style:normal;color:var(--ink-500);font-variant-numeric:tabular-nums;}
.ob__f em{text-align:right;font-weight:600;color:var(--gold-700);}
.ob__split{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:52px;align-items:center;}
.ob__split svg{width:100%;height:auto;}
.ob__dep{margin-top:16px;font-family:var(--font-display);font-weight:700;color:var(--navy-700);}
@media(max-width:900px){.ob__split{grid-template-columns:minmax(0,1fr);gap:32px;}
  .ob__f{grid-template-columns:minmax(0,1fr);gap:5px;} .ob__f em{text-align:left;}
  .ob__orbit{opacity:.5;}}