:root { --navy: #0A1A2F; --blue: #0066FF; --ai: #6B4EFF; --cyan: #00E0FF; --green: #00C896; --ink: #1f2937; --muted: #6b7280; --line: #e5e7eb; --bg: #fff; --soft: #f6f8fb; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font: 16px/1.6 Inter, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; color: var(--ink); background: var(--bg); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; } .narrow { max-width: 720px; }
a { color: var(--blue); }
.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 18px; padding: 10px 20px; background: rgba(255, 255, 255, .92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top nav { display: flex; gap: 16px; margin-left: auto; } .top nav a { color: var(--ink); text-decoration: none; font-size: 14px; } .top nav a:hover { color: var(--blue); }
.brand { display: flex; align-items: center; gap: 8px; color: var(--navy); text-decoration: none; } .brand span { color: var(--blue); }
.lang { font-size: 13px; font-weight: 600; text-decoration: none; border: 1px solid var(--line); border-radius: 8px; padding: 4px 8px; color: var(--navy); }
.btn { display: inline-block; background: var(--blue); color: #fff; border: 0; border-radius: 10px; padding: 9px 16px; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn:hover { background: #0052cc; } .btn.big { padding: 13px 24px; font-size: 17px; } .btn.ghost { background: transparent; color: var(--blue); border: 1.5px solid var(--blue); }
.hero { background: radial-gradient(900px 500px at 15% 0%, #16356b 0, transparent 60%), radial-gradient(800px 500px at 95% 100%, rgba(107, 78, 255, .5), transparent 60%), var(--navy); color: #fff; padding: 84px 0 64px; }
.hero h1 { font-size: clamp(32px, 5vw, 54px); line-height: 1.1; letter-spacing: -.03em; margin: 0 0 18px; max-width: 800px; }
.lead { font-size: 19px; color: #c7d2fe; max-width: 720px; } .row { display: flex; gap: 12px; flex-wrap: wrap; margin: 26px 0; }
.badges { list-style: none; padding: 0; margin: 28px 0 0; display: flex; gap: 10px; flex-wrap: wrap; } .badges li { font-size: 13px; border: 1px solid rgba(255, 255, 255, .25); border-radius: 999px; padding: 5px 12px; color: #e0e7ff; }
section { padding: 64px 0; } .band { background: var(--soft); }
h2 { font-size: clamp(26px, 3.5vw, 36px); letter-spacing: -.02em; margin: 0 0 22px; color: var(--navy); } h3 { margin: 0 0 6px; color: var(--navy); }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); } .g3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 20px; box-shadow: 0 1px 2px rgba(10, 26, 47, .04); } .card p { margin: 0; color: #4b5563; }
.problems, .checks { padding-left: 20px; } .problems li, .checks li { margin: 8px 0; } .checks { list-style: none; padding: 0; } .checks li::before { content: '✓ '; color: var(--green); font-weight: 700; }
.muted { color: var(--muted); } .small { font-size: 13px; }
.tabs { display: flex; gap: 6px; margin: 16px 0; flex-wrap: wrap; } .tabs button { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 7px 16px; font: inherit; cursor: pointer; } .tabs button.on { background: var(--navy); color: #fff; border-color: var(--navy); }
.panel { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; align-items: end; background: var(--soft); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
label { display: grid; gap: 4px; font-size: 13px; font-weight: 600; color: #374151; } input, select { font: inherit; padding: 9px 10px; border: 1px solid #d1d5db; border-radius: 8px; width: 100%; background: #fff; }
.out { grid-column: 1 / -1; font-size: 15px; } .out .k { display: inline-block; margin: 4px 18px 4px 0; } .out b { font-size: 22px; color: var(--navy); } .out .tag { display: inline-block; padding: 3px 10px; border-radius: 999px; font-weight: 600; font-size: 13px; } .tag.good { background: #d1fae5; color: #065f46; } .tag.warn { background: #fef3c7; color: #92400e; }
form { display: grid; gap: 12px; } details { border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; margin: 8px 0; background: #fff; } summary { cursor: pointer; font-weight: 600; } details p { margin: 8px 0 0; color: #4b5563; }
footer { background: var(--navy); color: #cbd5e1; padding: 32px 0; text-align: center; } footer a { color: #93c5fd; } footer img { vertical-align: middle; }
@media (max-width: 720px) { .top nav { display: none; } .top { justify-content: space-between; } .hero { padding: 56px 0 44px; } section { padding: 44px 0; } }
.article { line-height: 1.7; } .article h1 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -.02em; color: var(--navy); margin: 8px 0 14px; } .article h2 { font-size: 22px; margin: 26px 0 8px; } .lead2 { font-size: 18px; color: #374151; }
.tablewrap { overflow-x: auto; } table { border-collapse: collapse; width: 100%; font-size: 14px; } th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; } th { background: var(--soft); }
.tag.bad { background: #fee2e2; color: #991b1b; } .tag { white-space: nowrap; } .card ul { margin: 8px 0 0; padding-left: 20px; }

.btn.ghost { margin-right: 6px; } .hero .btn.ghost { color: #fff; border-color: rgba(255,255,255,.5); } .hero .btn.ghost:hover { background: rgba(255,255,255,.12); } video { display: block; margin-top: 8px; }
@media (max-width: 720px) { .row .btn.big { width: 100%; text-align: center; } }
.consent { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; font-size: 13px; color: #4b5563; } .consent input { width: auto; margin-top: 3px; } form { position: relative; }