:root{--primary: #0ea5e9;--primary-dark: #0284c7;--secondary: #e0f2fe;--ink: #0f172a;--muted: #64748b;--line: #e2e8f0;--bg: #f8fafc;--white: #ffffff;--radius: 16px;--shadow: 0 10px 30px rgba(2, 132, 199, .08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--primary-dark);text-decoration:none}a:hover{text-decoration:underline}.container{width:100%;max-width:960px;margin:0 auto;padding:0 20px}.site-header{position:sticky;top:0;z-index:10;background:#ffffffd9;-webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:62px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;color:var(--ink)}.brand:hover{text-decoration:none}.brand-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--primary);color:#fff;font-size:1rem;font-weight:900}.nav{display:flex;gap:6px;flex-wrap:wrap}.nav a{padding:7px 12px;border-radius:999px;color:var(--muted);font-weight:600;font-size:.92rem}.nav a:hover{color:var(--ink);text-decoration:none;background:var(--secondary)}.nav a.active{color:var(--primary-dark);background:var(--secondary)}.main{padding:40px 20px 64px;min-height:60vh}.hero{text-align:center;padding:32px 0 12px}.pill{display:inline-block;padding:6px 14px;border-radius:999px;background:var(--secondary);color:var(--primary-dark);font-weight:700;font-size:.82rem;margin-bottom:18px}.hero h1{font-size:clamp(2rem,5vw,3rem);line-height:1.15;margin:0 0 16px;letter-spacing:-.02em}.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:620px;margin:0 auto 28px}.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:12px;font-weight:700;font-size:1rem;border:1px solid transparent;cursor:pointer;transition:transform .05s ease,background .15s ease}.btn:hover{text-decoration:none}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}.btn-ghost:hover{background:var(--bg)}.btn[disabled]{opacity:.6;cursor:not-allowed}.section{margin-top:56px}.section-title{text-align:center;font-size:1.6rem;margin:0 0 8px}.section-sub{text-align:center;color:var(--muted);margin:0 auto 28px;max-width:560px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.card .ico{font-size:1.6rem;margin-bottom:10px}.card h3{margin:0 0 6px;font-size:1.12rem}.card p{margin:0;color:var(--muted);font-size:.96rem}.steps{counter-reset:step;display:grid;gap:14px;max-width:640px;margin:0 auto}.step{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}.step .num{flex:none;width:34px;height:34px;border-radius:50%;background:var(--secondary);color:var(--primary-dark);display:grid;place-items:center;font-weight:800}.step h3{margin:2px 0 4px;font-size:1.05rem}.step p{margin:0;color:var(--muted);font-size:.95rem}.article{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow)}.article h1{margin:0 0 6px;font-size:1.9rem}.article .updated{color:var(--muted);font-size:.88rem;margin:0 0 24px}.article h2{font-size:1.2rem;margin:28px 0 8px}.article p,.article li{color:#334155}.article ul{padding-left:20px}.article .note{margin-top:28px;padding:14px 16px;background:var(--secondary);border-radius:12px;font-size:.9rem;color:var(--primary-dark)}.form{max-width:560px;margin:0 auto}.field{margin-bottom:16px}.field label{display:block;font-weight:600;margin-bottom:6px;font-size:.95rem}.field input,.field textarea,.field select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font-size:1rem;font-family:inherit;background:#fff;color:var(--ink)}.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #0ea5e926}.field textarea{resize:vertical;min-height:130px}.hint{color:var(--muted);font-size:.82rem;margin-top:6px}.alert{padding:14px 16px;border-radius:12px;margin-bottom:18px;font-size:.95rem}.alert-success{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}.alert-error{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}.alert-info{background:var(--secondary);color:var(--primary-dark);border:1px solid #bae6fd}.site-footer{border-top:1px solid var(--line);background:#fff}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 20px;color:var(--muted);font-size:.9rem}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.footer-links a{color:var(--muted)}.footer-links a:hover{color:var(--ink)}@media(max-width:560px){.header-inner{height:auto;flex-direction:column;gap:8px;padding:10px 0}.article{padding:24px}}.download{max-width:380px;margin:0 auto;padding:12px 0 8px;text-align:center;display:flex;flex-direction:column;align-items:center}.download-icon{width:96px;height:96px;border-radius:22px;box-shadow:var(--shadow);margin-bottom:20px}.download h1{font-size:1.7rem;margin:0 0 10px;letter-spacing:-.01em}.download-lead{color:var(--muted);font-size:1rem;margin:0 0 28px}.appstore-badge{display:inline-flex;align-items:center;gap:10px;width:100%;max-width:280px;justify-content:center;background:#000;color:#fff;padding:12px 22px;border-radius:14px;font-weight:700}.appstore-badge:hover{background:#1a1a1a;text-decoration:none}.appstore-badge:active{transform:translateY(1px)}.appstore-badge-text{display:flex;flex-direction:column;align-items:flex-start;line-height:1.15}.appstore-badge-text small{font-size:.72rem;font-weight:500;color:#d1d5db}.appstore-badge-text strong{font-size:1.2rem;letter-spacing:-.01em}.download-highlights{list-style:none;margin:32px 0 0;padding:0;text-align:left;width:100%;display:flex;flex-direction:column;gap:12px}.download-highlights li{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:.95rem;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px}.download-highlights .check{flex:none;display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--secondary);color:var(--primary-dark);font-weight:800;font-size:.8rem}