:root{--ink: #0f172a;--ink-2: #334155;--muted: #64748b;--line: #e2e8f0;--bg: #ffffff;--bg-soft: #f8fafc;--accent: #2563eb;--accent-hover: #1d4ed8;--radius: 12px;--shadow: 0 1px 2px rgb(15 23 42 / .06), 0 8px 24px rgb(15 23 42 / .07)}*{box-sizing:border-box;margin:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,Roboto,Helvetica Neue,PingFang SC,Microsoft YaHei,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}.container{max-width:1120px;margin:0 auto;padding:0 24px}a{color:inherit;text-decoration:none}h1,h2,h3{letter-spacing:-.02em;line-height:1.2}.site-header{position:sticky;top:0;z-index:50;background:#ffffffd9;backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;gap:32px;height:64px}.brand{display:flex;align-items:center;gap:10px;font-weight:700}.brand-mark{display:grid;place-items:center;width:32px;height:32px;background:var(--ink);color:#fff;border-radius:8px;font-size:13px;font-weight:800;letter-spacing:.02em}.nav{display:flex;gap:28px;margin-right:auto;align-items:center}.nav a{color:var(--ink-2);font-size:15px;font-weight:500}.nav a:hover{color:var(--ink)}.nav-item{position:relative}.nav-item>a{display:inline-flex;align-items:center;padding:8px 0}.nav-item>a:after{content:"▾";margin-left:5px;font-size:11px;color:var(--muted)}.nav-item .drop{display:none;position:absolute;top:100%;left:-12px;z-index:60;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:6px;min-width:180px;max-height:70vh;overflow-y:auto}.nav-item .drop-wide{width:380px;display:none;grid-template-columns:1fr 1fr;gap:2px}.nav-item:hover .drop,.nav-item:focus-within .drop{display:block}.nav-item:hover .drop-wide,.nav-item:focus-within .drop-wide{display:grid}.nav-item .drop a{display:block;padding:8px 12px;border-radius:6px;font-size:14px}.nav-item .drop a:hover{background:var(--bg-soft);color:var(--accent)}.mobile-menu{display:none;position:static}.mobile-menu summary{list-style:none;cursor:pointer;color:var(--ink-2);display:grid;place-items:center;width:36px;height:36px;border:1px solid var(--line);border-radius:8px}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu .mobile-panel{position:absolute;right:16px;top:calc(100% + 4px);z-index:70;width:min(320px,86vw);max-height:72vh;overflow-y:auto;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:16px;display:grid;grid-template-columns:1fr;gap:4px 16px}.mobile-panel h4{font-size:13px;color:var(--muted);margin:10px 0 4px;text-transform:uppercase;letter-spacing:.05em}.mobile-panel a{display:block;padding:7px 8px;border-radius:6px;font-size:14px;color:var(--ink-2)}.mobile-panel a:hover{background:var(--bg-soft);color:var(--ink)}.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto}.lang-menu{position:relative}.lang-menu summary{list-style:none;cursor:pointer;font-size:14px;font-weight:500;color:var(--muted);padding:6px 10px;border-radius:8px;border:1px solid var(--line)}.lang-menu summary::-webkit-details-marker{display:none}.lang-menu summary:hover{color:var(--ink);border-color:var(--muted)}.lang-list{position:absolute;right:0;top:calc(100% + 6px);z-index:60;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:6px;min-width:140px}.lang-list a{display:block;padding:7px 12px;border-radius:6px;font-size:14px;color:var(--ink-2)}.lang-list a:hover{background:var(--bg-soft);color:var(--ink)}.lang-list a.active{color:var(--accent);font-weight:600}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;font-weight:600;cursor:pointer;padding:12px 24px;font-size:16px;transition:all .15s ease;border:1px solid transparent}.btn-sm{padding:8px 16px;font-size:14px}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:#fff;color:var(--ink);border-color:var(--line)}.btn-secondary:hover{border-color:var(--muted)}section{padding:80px 0}section.soft{background:var(--bg-soft)}.section-head{max-width:640px;margin:0 auto 48px;text-align:center}.section-head .eyebrow{color:var(--accent);font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.08em}.section-head h2{font-size:34px;margin:12px 0}.section-head p{color:var(--muted);font-size:17px}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.card{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:#fff;display:flex;flex-direction:column;gap:10px;transition:box-shadow .15s ease,transform .15s ease}.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}.card h3{font-size:19px}.card p{color:var(--muted);font-size:15px;flex:1}.card .card-link{color:var(--accent);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}.badge{display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;width:fit-content}.badge-free{background:#ecfdf5;color:#047857}.badge-planned{background:#fffbeb;color:#b45309}.site-footer{border-top:1px solid var(--line);background:var(--bg-soft);padding:56px 0 32px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-bottom:32px;border-bottom:1px solid var(--line)}.footer-grid h4{font-size:14px;margin-bottom:14px}.footer-grid a{display:block;color:var(--muted);font-size:14px;padding:4px 0}.footer-grid a:hover{color:var(--ink)}.footer-tagline{color:var(--muted);font-size:14px;margin-top:12px;max-width:280px}.footer-note{display:flex;justify-content:space-between;gap:16px;color:var(--muted);font-size:13px;padding-top:24px}@media(max-width:860px){.nav{display:none}.mobile-menu{display:block}.card-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}section{padding:56px 0}.footer-note{flex-direction:column}}