:root{--bg:#f7f8fb;--panel:#fff;--text:#172033;--muted:#647085;--primary:#4f46e5;--primary-dark:#3730a3;--accent:#f97316;--soft:#eef2ff;--border:#dfe4ef;--success:#0f9f6e;--danger:#dc2626;--shadow:0 18px 45px rgba(24,32,47,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:var(--bg);line-height:1.7}a{color:inherit}.container{width:min(1120px,calc(100% - 32px));margin:0 auto}.narrow{max-width:860px}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:20px}.brand{font-size:1.25rem;font-weight:900;color:var(--primary);text-decoration:none}.nav{display:flex;flex-wrap:wrap;gap:14px;color:var(--muted);font-size:.95rem}.nav a{text-decoration:none}.nav a:hover{color:var(--primary)}.menu-button{display:none}.hero,.page-hero{background:radial-gradient(circle at 20% 20%,rgba(79,70,229,.18),transparent 28%),radial-gradient(circle at 90% 5%,rgba(249,115,22,.15),transparent 28%),linear-gradient(135deg,#fff,#f1f5ff)}.hero{padding:82px 0 60px}.page-hero{padding:64px 0}.hero-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(280px,.75fr);gap:36px;align-items:center}.eyebrow{color:var(--primary);font-weight:850;letter-spacing:.04em;text-transform:uppercase;font-size:.8rem;margin:0 0 10px}h1{font-size:clamp(2.15rem,5.5vw,4.4rem);line-height:1.08;margin:0 0 20px;letter-spacing:-.055em}h2{font-size:clamp(1.45rem,3vw,2.25rem);line-height:1.18;letter-spacing:-.035em;margin:0 0 14px}h3{margin:0 0 8px}.hero-copy,.page-hero p{font-size:1.08rem;color:var(--muted);max-width:760px}.button{display:inline-flex;align-items:center;justify-content:center;padding:13px 18px;border-radius:14px;font-weight:800;border:1px solid transparent;text-decoration:none}.button.primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(79,70,229,.24)}.button.primary:hover{background:var(--primary-dark)}.button.ghost{background:#fff;border-color:var(--border);color:var(--text)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.summary-card,.calc-panel,.result-panel,.card,article,.notice,details,.table-wrap,.narrow,.checklist{background:var(--panel);border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow)}.summary-card,.card,.narrow,.checklist{padding:26px}.summary-card ul{padding-left:20px;color:var(--muted)}.section{padding:68px 0}.section.soft{background:var(--soft)}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.cards.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card{box-shadow:none}.card p,article p,.narrow p,details p,.source-note{color:var(--muted)}.article-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.article-grid article{padding:28px}.notice{padding:16px 18px;margin-bottom:18px;box-shadow:none}.notice p{margin:4px 0 0;color:var(--muted)}.notice.safe{border-color:#bbf7d0;background:#f0fdf4}.notice.safe strong{color:#047857}.calculator-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);gap:24px;align-items:start}.calc-panel{padding:24px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.full{grid-column:1/-1}label{display:grid;gap:6px;font-weight:800}.hint{display:block;color:var(--muted);font-weight:500;font-size:.84rem;line-height:1.35}input,select{width:100%;border:1px solid var(--border);border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text)}input:focus,select:focus{outline:3px solid rgba(79,70,229,.16);border-color:var(--primary)}.result-panel{padding:28px;position:sticky;top:86px}.result-label{margin:0;color:var(--muted);font-weight:800}.result-main{display:block;font-size:clamp(2.35rem,5vw,3.55rem);line-height:1.1;margin:8px 0 20px;letter-spacing:-.04em}.result-main.profit{color:var(--success)}.result-main.loss{color:var(--danger)}.result-list{display:grid;gap:10px}.result-list div{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px dashed var(--border)}.result-list span{color:var(--muted)}.result-message{margin:20px 0 0;padding:14px;border-radius:16px;background:#f8fafc;color:var(--muted)}.result-message.good{background:#ecfdf5;color:#047857}.result-message.bad{background:#fef2f2;color:#b91c1c}.formula{padding:18px;border-radius:16px;background:#111827;color:#f9fafb;font-weight:800;margin:20px 0;overflow-x:auto}.table-wrap{overflow-x:auto;box-shadow:none}table{width:100%;border-collapse:collapse;min-width:720px}th,td{padding:14px 16px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}th{background:#f8fafc}.faq-list{display:grid;gap:14px}details{padding:18px 20px;box-shadow:none}summary{cursor:pointer;font-weight:850}.checklist ol{margin:0;padding-left:24px}.site-footer{padding:32px 0;background:#111827;color:#d1d5db}.footer-grid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}.site-footer a{color:#e5e7eb;margin-right:12px}.site-footer p{margin:.2rem 0 0;color:#9ca3af}@media(max-width:860px){.hero-grid,.calculator-grid,.article-grid{grid-template-columns:1fr}.calc-panel{grid-template-columns:1fr}.result-panel{position:static}.cards,.cards.three{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){.nav-wrap{align-items:flex-start;flex-direction:column;padding:12px 0}.nav{gap:10px;font-size:.9rem}.hero{padding-top:48px}.section{padding:52px 0}.cards,.cards.three{grid-template-columns:1fr}table{min-width:640px}}