/* 공개 소개 페이지(body.landing) — rails8 sample/leads/about_e.html(9/9 확정) 이식. 전부 .landing 스코프(다른 화면에 영향 0). */
body.landing{--bg:#05070b;--text:#f4f7fb;--muted:#91a0b5;--line:rgba(255,255,255,.10);--cyan:#7dd3fc;--green:#34d399;
  background:var(--bg);color:var(--text);font-family:Inter,"Noto Sans KR",sans-serif;overflow-x:hidden;font-size:15px;line-height:1.6}
.landing .ld-stars{position:fixed;inset:0;z-index:0;pointer-events:none;width:100%;height:100%}
.landing .ld-noise{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.045;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.landing .ld-main{position:relative;z-index:2}
/* nav */
.landing .ld-nav{position:fixed;top:0;left:0;right:0;height:72px;z-index:20;border-bottom:1px solid transparent;transition:.3s}
.landing .ld-nav.scrolled{background:rgba(5,7,11,.72);backdrop-filter:blur(22px);border-color:var(--line)}
.landing .ld-nav-in{height:100%;max-width:1240px;margin:auto;padding:0 28px;display:flex;align-items:center;gap:34px}
.landing .ld-logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.04em;color:#fff}
.landing .ld-mark{width:28px;height:28px;border-radius:7px;background:url("/assets/odas-mark-65a799c0.svg") center/contain no-repeat;box-shadow:0 0 35px rgba(36,128,209,.45);position:relative}   /* E4b 앱 아이콘과 동일(9/19) */
.landing .ld-navcta{margin-left:auto;padding:10px 17px;border:1px solid rgba(255,255,255,.18);border-radius:999px;font-size:13px;background:rgba(255,255,255,.06);color:#fff}
/* hero */
.landing .ld-hero{display:flex;align-items:center;padding:140px 28px 70px;position:relative}
.landing .ld-hero-in{width:min(1240px,100%);margin:auto;display:grid;grid-template-columns:1.02fr .98fr;gap:70px;align-items:center}
.landing .ld-eyebrow{display:inline-flex;align-items:center;gap:9px;color:#b8c8dc;border:1px solid var(--line);background:rgba(255,255,255,.045);border-radius:999px;padding:8px 13px;font-size:12px;backdrop-filter:blur(14px)}
.landing .ld-dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 18px var(--green);display:inline-block}
.landing h1{font-size:clamp(46px,5.2vw,78px);line-height:1.04;letter-spacing:-.055em;margin:25px 0 25px;max-width:760px;word-break:keep-all;font-weight:800;color:#fff}
.landing .ld-grad{background:linear-gradient(100deg,#fff 20%,#bfe9ff 58%,#7dd3fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.landing .ld-copy{color:#9eabbc;font-size:17px;line-height:1.8;max-width:590px;margin:0}
.landing .ld-actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.landing .ld-btn{padding:14px 20px;border-radius:12px;font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:9px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#dce5ef}
.landing .ld-btn.p{background:#eef9ff;color:#071019;border-color:#eef9ff;box-shadow:0 15px 50px rgba(125,211,252,.18)}
.landing .ld-meta{display:flex;gap:35px;margin-top:48px;padding-top:24px;border-top:1px solid var(--line)}
.landing .ld-meta b{display:block;font-size:18px;color:#fff}.landing .ld-meta span{display:block;color:#718096;font-size:11px;margin-top:4px}
/* console mock */
.landing .ld-console{position:relative;border:1px solid rgba(255,255,255,.12);background:linear-gradient(145deg,rgba(18,25,37,.86),rgba(7,10,16,.72));border-radius:26px;padding:1px;box-shadow:0 50px 120px rgba(0,0,0,.55),0 0 80px rgba(96,165,250,.07);transform:perspective(1300px) rotateY(-7deg) rotateX(2deg);transition:transform .7s}
.landing .ld-console:hover{transform:perspective(1300px) rotateY(-2deg) rotateX(0)}
.landing .ld-console-top{height:48px;display:flex;align-items:center;gap:7px;padding:0 17px;border-bottom:1px solid var(--line);color:#607087;font-size:11px}
.landing .ld-console-top i{width:7px;height:7px;border-radius:50%;background:#526074;display:inline-block}
.landing .ld-url{margin-left:10px;padding:7px 12px;border-radius:7px;background:rgba(255,255,255,.035);flex:1}
.landing .ld-console-body{padding:22px}
.landing .ld-livebar{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.landing .ld-livebar b{font-size:15px;color:#fff}
.landing .ld-live{font-size:11px;color:var(--green);display:flex;gap:6px;align-items:center}
.landing .ld-card{border:1px solid var(--line);border-radius:16px;padding:15px;margin:10px 0;background:rgba(255,255,255,.025)}
.landing .ld-row{display:flex;align-items:center;gap:10px}
.landing .ld-src-ic{width:28px;height:28px;border-radius:8px;display:grid;place-items:center;font-size:11px;font-weight:800;color:#fff}
.landing .ld-src-ic.meta{background:#1877f2}.landing .ld-src-ic.tt{background:#111;border:1px solid #333}
.landing .ld-name{font-size:12px;font-weight:700;color:#fff}.landing .ld-time{margin-left:auto;color:#68788d;font-size:10px}
.landing .ld-detail{margin-top:9px;color:#7d8ca0;font-size:10.5px}
.landing .ld-status{display:inline-flex;margin-top:10px;padding:4px 8px;border-radius:999px;font-size:9px;font-weight:700}
.landing .ld-status.pending{color:#fbbf24;background:rgba(245,158,11,.08)}.landing .ld-status.done{color:var(--green);background:rgba(52,211,153,.08)}
/* sections */
.landing .ld-section{padding:110px 28px 90px;position:relative}
.landing #flow{background:linear-gradient(180deg,transparent,rgba(5,7,11,.82) 18%,rgba(5,7,11,.82) 82%,transparent)}
.landing .ld-container{width:min(1240px,100%);margin:auto}
.landing .ld-head{max-width:680px;margin-bottom:55px}
.landing .ld-label{color:var(--cyan);font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.landing h2{font-size:clamp(38px,5vw,62px);line-height:1.05;letter-spacing:-.055em;margin:14px 0 18px;word-break:keep-all;font-weight:800;color:#fff}
.landing .ld-sub{color:#8290a3;font-size:15px;line-height:1.8;margin:0}
.landing .ld-reveal{opacity:0;transform:translateY(18px);transition:opacity .8s ease,transform .8s ease}
.landing .ld-reveal.on{opacity:1;transform:none}
/* flow diagram */
.landing .ld-arch{position:relative;display:flex;justify-content:space-between;align-items:center;padding:20px 40px;min-height:260px}
.landing .ld-arch-svg{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;overflow:visible}
.landing .ld-col,.landing .ld-core{position:relative;z-index:1}
.landing .ld-col{display:flex;flex-direction:column;gap:44px;align-items:center}
.landing .ld-col:last-child{gap:14px;align-items:stretch}
.landing .ld-src,.landing .ld-dst{display:flex;flex-direction:column;align-items:center;gap:9px}
.landing .ld-src span{font-size:11.5px;color:#6f8299;white-space:nowrap}
.landing .ld-dst{flex-direction:row;gap:12px;padding:12px 20px 12px 12px;border:1px solid var(--line);border-radius:999px;background:rgba(11,16,24,.86);min-width:170px;transition:border-color .3s,box-shadow .3s}
.landing .ld-dst b{font-size:14px;white-space:nowrap;color:#fff}
.landing .ld-ico{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);background:rgba(11,16,24,.9);transition:box-shadow .3s,border-color .3s}
.landing .ld-ico svg{width:26px;height:26px}
.landing .ld-ico.fb{background:#1877f2;border-color:#1877f2}.landing .ld-ico.fb svg{fill:#fff}
.landing .ld-ico.tt{background:#0d0d0d;border-color:#2a2a2a}.landing .ld-ico.tt svg{fill:#fff}
.landing .ld-dst .ld-ico{width:38px;height:38px}
.landing .ld-ico.od{background:transparent;border:none;overflow:hidden}.landing .ld-ico.od img{width:38px;height:38px;border-radius:50%;display:block}
.landing .ld-ico.lk{color:#9fd8ff}.landing .ld-ico.lk svg{width:18px;height:18px}
.landing .ld-ico.tg{background:#229ED9;border-color:#229ED9}.landing .ld-ico.tg svg{fill:#fff;width:22px;height:22px}
.landing .ld-ico.gs{background:#1e8e3e;border-color:#1e8e3e;color:#fff}.landing .ld-ico.gs svg{width:18px;height:18px}
.landing .ld-src.emit .ld-ico{box-shadow:0 0 0 6px rgba(125,211,252,.18),0 0 30px rgba(125,211,252,.35)}
.landing .ld-dst.hit{border-color:rgba(52,211,153,.6);box-shadow:0 0 28px rgba(52,211,153,.18)}
.landing .ld-core{display:flex;align-items:center;gap:16px;padding:16px 26px 16px 16px;border-radius:999px;border:1px solid rgba(125,211,252,.28);background:radial-gradient(circle at 30% 50%,rgba(96,165,250,.16),transparent 60%),rgba(12,20,31,.92);box-shadow:0 20px 60px rgba(0,0,0,.35)}
.landing .ld-core b{font-size:16px;white-space:nowrap;color:#fff}.landing .ld-orb .ld-mark{width:26px;height:26px;border-radius:6px;box-shadow:none}
.landing .ld-orb{width:52px;height:52px;border-radius:50%;border:1px solid rgba(125,211,252,.6);display:grid;place-items:center;position:relative;box-shadow:0 0 30px rgba(125,211,252,.15),inset 0 0 20px rgba(125,211,252,.12)}
.landing .ld-orb::before{content:"";position:absolute;inset:-1px;border-radius:50%;border:1px solid rgba(125,211,252,.6);opacity:0}
.landing .ld-core.busy .ld-orb::before{animation:ld-ring .55s ease-out}.landing .ld-core.busy{border-color:rgba(125,211,252,.6)}
@keyframes ld-ring{0%{opacity:.9;transform:scale(1)}100%{opacity:0;transform:scale(2)}}
.landing .ld-arch-svg .rail{fill:none;stroke:rgba(125,211,252,.28);stroke-width:1.5;stroke-linecap:round}
.landing .ld-arch-svg .pkt{fill:#dff5ff;filter:drop-shadow(0 0 5px rgba(125,211,252,1)) drop-shadow(0 0 14px rgba(96,165,250,.6))}
.landing .ld-arch-svg .pkt.ok{fill:#bbf7e0;filter:drop-shadow(0 0 5px rgba(52,211,153,1)) drop-shadow(0 0 14px rgba(52,211,153,.5))}
.landing .ld-arch-svg .trail{fill:none;stroke-width:2;stroke-linecap:round;opacity:.6}
.landing .ld-trust{display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:center;margin-top:56px;padding-top:26px;border-top:1px solid var(--line);color:#8997aa;font-size:13px}
.landing .ld-trust i{color:var(--green);font-style:normal;margin-right:7px}
/* cta · footer */
.landing .ld-cta{padding:40px 28px 110px}
.landing .ld-cta-box{position:relative;overflow:hidden;border:1px solid rgba(125,211,252,.16);border-radius:28px;padding:65px;text-align:center;background:radial-gradient(circle at 50% 0,rgba(125,211,252,.13),transparent 55%),rgba(11,16,24,.75)}
.landing .ld-cta-box h2{margin-top:14px}.landing .ld-cta-box p{color:#8290a3;max-width:540px;margin:0 auto 28px}
.landing .ld-foot{position:relative;z-index:2;border-top:1px solid var(--line);padding:34px 28px 45px;color:#65748a;font-size:11.5px}
.landing .ld-biz{display:flex;flex-wrap:wrap;gap:6px 0;color:#7c8aa0;line-height:1.8;margin-bottom:14px}
.landing .ld-biz span+span::before{content:"";display:inline-block;width:1px;height:10px;background:#2b3542;margin:0 10px;vertical-align:-1px}
.landing .ld-biz a,.landing .ld-foot-in a{color:#8fa3bb}.landing .ld-foot-in a:hover{color:#fff}
.landing .ld-foot-in{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
@media(max-width:900px){.landing .ld-hero-in{grid-template-columns:1fr}.landing .ld-console{transform:none}.landing .ld-arch{flex-direction:column;gap:40px;padding:10px}.landing .ld-col{flex-direction:row;gap:28px}.landing .ld-col:last-child{flex-wrap:wrap;justify-content:center}.landing .ld-core{padding:14px 20px 14px 14px}}
@media(max-width:560px){.landing h1{font-size:42px}.landing .ld-hero,.landing .ld-section,.landing .ld-cta{padding-left:18px;padding-right:18px}.landing .ld-meta{gap:20px}.landing .ld-console-body{padding:15px}.landing .ld-cta-box{padding:42px 22px}}
@media(prefers-reduced-motion:reduce){.landing .ld-reveal{opacity:1;transform:none;transition:none}.landing .ld-console{transition:none;transform:none}}