:root{--cyan:#00c8ff;--blue:#0a46ff;--navy:#070b18;--purple:#7a2cff;--pink:#ff2f8f;--ink:#101827;--muted:#657083;--line:#e7ebf3;--soft:#eef8ff;--shadow:0 22px 60px rgba(7,11,24,.16)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:white;line-height:1.68}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.container{width:min(1200px,92vw);margin:auto}
.topbar{background:var(--navy);color:#fff;font-size:.92rem}.topbar .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:8px 0}.topbar a{color:#fff}
.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}.logo{display:flex;align-items:center;gap:12px;color:var(--ink);font-weight:900;text-decoration:none;letter-spacing:-.02em}.mark{width:50px;height:50px;border-radius:16px;background:linear-gradient(135deg,var(--cyan),var(--blue),var(--purple));box-shadow:0 14px 30px rgba(10,70,255,.25);display:grid;place-items:center;color:white;font-size:25px}.logo small{display:block;color:var(--muted);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase}.menu{display:flex;align-items:center;gap:19px;flex-wrap:wrap}.menu a{font-weight:850;color:#1f2937;font-size:.95rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 20px;border-radius:999px;background:linear-gradient(135deg,var(--blue),var(--purple));color:white!important;font-weight:900;text-decoration:none!important;border:0;box-shadow:0 12px 24px rgba(10,70,255,.20)}.btn.secondary{background:white;color:var(--blue)!important;border:2px solid var(--blue);box-shadow:none}.btn.dark{background:#0b1020;color:#fff!important}
.hero{position:relative;overflow:hidden;color:#fff;background:#070b18}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,11,24,.94),rgba(7,11,24,.72),rgba(10,70,255,.28)),url('blue-led-corridor.jpg') center/cover no-repeat;transform:scale(1.02)}.hero .container{position:relative;padding:112px 0 96px;display:grid;grid-template-columns:1.08fr .72fr;gap:56px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);font-weight:900;font-size:.82rem;letter-spacing:.09em;text-transform:uppercase}.hero h1{font-size:clamp(2.55rem,6vw,5.35rem);line-height:1.01;letter-spacing:-.055em;margin:18px 0}.hero p{font-size:1.18rem;color:#edf7ff;max-width:760px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.hero-card{background:rgba(255,255,255,.97);color:var(--ink);border:1px solid rgba(255,255,255,.5);border-radius:30px;padding:30px;box-shadow:var(--shadow)}.hero-card h3{margin-top:0}.checklist{list-style:none;margin:18px 0 0;padding:0}.checklist li{position:relative;padding:10px 0 10px 34px;border-bottom:1px solid #edf0f5;color:#394150}.checklist li:last-child{border-bottom:0}.checklist li:before{content:"✓";position:absolute;left:0;top:10px;width:23px;height:23px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--blue));color:white;display:grid;place-items:center;font-weight:900;font-size:.75rem}
.band{background:linear-gradient(90deg,var(--cyan),#fff,var(--pink));color:#0b1020}.band .container{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:18px 0}.stat strong{display:block;font-size:1.5rem}
.section{padding:82px 0}.alt{background:#f7f9fd}.soft{background:linear-gradient(180deg,#fff,#eef8ff)}.dark-section{background:#070b18;color:white}.dark-section p{color:#d7e4ff}.section-title{max-width:880px;margin-bottom:34px}.center{text-align:center;margin-left:auto;margin-right:auto}.section-title h2{font-size:clamp(2rem,4vw,3.35rem);line-height:1.08;margin:0 0 14px;letter-spacing:-.04em}.section-title p{color:var(--muted);font-size:1.08rem}.dark-section .section-title p{color:#d7e4ff}
.grid{display:grid;gap:24px}.cols-2{grid-template-columns:repeat(2,1fr)}.cols-3{grid-template-columns:repeat(3,1fr)}.cols-4{grid-template-columns:repeat(4,1fr)}.card{background:white;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:0 10px 28px rgba(15,23,42,.055)}.dark-section .card{background:#0e1730;border-color:#1c2c55;color:white}a.card{display:block;color:inherit;text-decoration:none}.card h3{margin-top:0;font-size:1.32rem;line-height:1.18}.card p,.card li{color:var(--muted)}.dark-section .card p,.dark-section .card li{color:#c9d6f2}.icon{width:52px;height:52px;border-radius:16px;background:var(--soft);color:var(--blue);display:grid;place-items:center;font-weight:900;margin-bottom:18px}.dark-section .icon{background:#12244b;color:#8eeaff}
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}.photo{border-radius:32px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);background:white}.photo img{display:block;width:100%;height:520px;object-fit:cover}.photo.small img{height:235px}.image-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}.image-strip .photo img{height:190px}
.page-hero{background:linear-gradient(118deg,#070b18,#071d48 62%,#0a46ff);color:white;padding:78px 0}.page-hero h1{font-size:clamp(2.2rem,4.8vw,4.1rem);line-height:1.05;letter-spacing:-.04em;margin:10px 0 14px}.page-hero p{max-width:820px;color:#edf7ff;font-size:1.12rem}.breadcrumb{font-size:.9rem;color:#8eeaff;font-weight:900}.content h2{font-size:2rem;margin-top:34px;letter-spacing:-.025em}.content h3{font-size:1.45rem;margin-top:28px}.content p,.content li{color:#4f5868}.content ul{padding-left:22px}.notice,.callout{background:#eef8ff;border-left:5px solid var(--cyan);padding:20px;border-radius:16px;color:#14365b}.table{width:100%;border-collapse:collapse;background:white;border:1px solid var(--line);border-radius:18px;overflow:hidden}.table th,.table td{padding:15px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.table th{background:#eef8ff;color:#073c85}.step-list{counter-reset:step;display:grid;gap:14px}.step{counter-increment:step;background:white;border:1px solid var(--line);border-radius:18px;padding:18px 18px 18px 62px;position:relative}.step:before{content:counter(step);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--blue));color:white;display:grid;place-items:center;font-weight:900}
.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.tool-box{background:white;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:0 10px 28px rgba(15,23,42,.055)}.tool-box label{display:block;font-weight:900;margin:12px 0 6px}.input,textarea,select{width:100%;padding:14px 16px;border:1px solid #d9dee8;border-radius:14px;font:inherit}textarea{min-height:150px}.result{margin-top:18px;background:#eef8ff;border-left:5px solid var(--blue);padding:18px;border-radius:16px;color:#0f2b5c;font-weight:900}
.faq details{background:white;border:1px solid var(--line);border-radius:18px;margin:12px 0;padding:18px}.faq summary{font-weight:900;cursor:pointer}.faq p{margin-bottom:0}
.cta{background:linear-gradient(135deg,#071d48,#0a46ff,#7a2cff);color:white;border-radius:32px;padding:44px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}.cta h2{margin:0 0 8px;font-size:2.25rem}.cta p{margin:0;color:#e9f5ff}.footer{background:#070b18;color:#cfd7e7;padding:60px 0 24px}.footer a{color:white}.footer-grid{display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:34px}.footer h4{margin-top:0;color:white}.footer ul{list-style:none;padding:0;margin:0}.footer li{padding:6px 0;color:#b9c2d0}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;color:#9aa4b3;font-size:.9rem}
@media(max-width:900px){.hero .container,.split,.cta,.tool-grid{grid-template-columns:1fr}.band .container,.cols-2,.cols-3,.cols-4,.footer-grid,.image-strip{grid-template-columns:1fr}.menu{display:none}.hero .container{padding:80px 0}.photo img{height:340px}}