:root{--primary: #4f46e5;--primary-hover: #4338ca;--primary-light: #eef2ff;--primary-border: #c7d2fe;--primary-dark: #3730a3;--accent: #06b6d4;--accent-hover: #0891b2;--accent-soft: #e0f2fe;--success: #10b981;--success-bg: #ecfdf5;--success-border: #a7f3d0;--danger: #ef4444;--danger-bg: #fef2f2;--danger-border: #fecaca;--warning: #f59e0b;--warning-bg: #fffbeb;--warning-border: #fde68a;--diff-add-bg: #ecfdf5;--diff-add-border: #10b981;--diff-add-text: #065f46;--diff-add-word: #bbf7d0;--diff-add-highlight: #bbf7d0;--diff-del-bg: #fef2f2;--diff-del-border: #ef4444;--diff-del-text: #991b1b;--diff-del-word: #fecdd3;--diff-del-highlight: #fecdd3;--bg-page: #f8fafc;--bg-card: #ffffff;--bg-card-hover: #f1f5f9;--bg-subtle: #f8fafc;--bg: #f8fafc;--surface: #ffffff;--surface-2: #f8fafc;--surface-3: #f1f5f9;--surface-card: #ffffff;--border: #e2e8f0;--border-strong: #cbd5e1;--border-focus: #4f46e5;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--text-faint: #94a3b8;--text: #0f172a;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-7: 48px;--space-8: 64px;--radius-xs: 4px;--radius-sm: 8px;--radius: 12px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 9999px;--shadow-xs: 0 1px 2px rgba(15, 23, 42, .04);--shadow-sm: 0 1px 3px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);--shadow-md: 0 4px 6px -1px rgba(15, 23, 42, .07), 0 2px 4px -2px rgba(15, 23, 42, .05);--shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, .08), 0 4px 6px -4px rgba(15, 23, 42, .04);--shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, .08), 0 8px 10px -6px rgba(15, 23, 42, .04);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .25s cubic-bezier(.4, 0, .2, 1);--max-width: 960px;--header-height: 64px;--font-sans: "Plus Jakarta Sans", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "SF Mono", "Fira Code", Menlo, Consolas, monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background-color:var(--bg-page);color:var(--text-primary);line-height:1.55;min-height:100vh;display:flex;flex-direction:column}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 20px}.site-header{position:sticky;top:0;z-index:100;background:#ffffffe6;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);height:var(--header-height);display:flex;align-items:center}.site-header-inner,.header-inner{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}.site-logo,.brand-link,.logo-link{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;color:var(--text-primary);text-decoration:none;letter-spacing:-.02em}.site-logo-icon,.brand-icon,.logo-badge{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 2px 6px #4f46e547;flex-shrink:0}.brand-name{color:var(--text-primary)}.badge-site,.badge-free{background:var(--primary-light);color:var(--primary);font-size:.65rem;font-weight:800;padding:3px 8px;border-radius:var(--radius-full);letter-spacing:.05em;text-transform:uppercase;border:1px solid var(--primary-border)}.lang-picker,.lang-picker-wrap{display:flex;align-items:center;gap:4px;background:var(--surface-3);padding:3px;border-radius:var(--radius-full);border:1px solid var(--border)}.lang-btn{background:transparent;border:none;font-family:var(--font-sans);font-size:.75rem;font-weight:700;color:var(--text-muted);padding:4px 10px;border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-fast)}.lang-btn:hover{color:var(--text-primary)}.lang-btn.active{background:#fff;color:var(--primary);box-shadow:var(--shadow-xs)}.main-content,.app-main{flex:1;padding:36px 0 60px}.hero,.hero-section{text-align:center;margin-bottom:32px;display:flex;flex-direction:column;align-items:center}.privacy-pill{display:inline-flex;align-items:center;gap:7px;background:var(--primary-light, #eef2ff);border:1px solid var(--primary-border, #c7d2fe);color:var(--primary, #4f46e5);font-size:.82rem;font-weight:600;padding:5px 16px;border-radius:var(--radius-full, 9999px);margin:0 auto 14px}.privacy-pill svg{width:14px;height:14px;color:var(--primary);flex-shrink:0}.hero-title,.hero h1,.hero-section h1{font-size:2.15rem;font-weight:800;color:var(--text-primary);letter-spacing:-.03em;line-height:1.2;margin:0 auto 12px;max-width:760px}@media(min-width:640px){.hero-title,.hero h1,.hero-section h1{font-size:2.4rem}}.hero-subtitle{font-size:1rem;color:var(--text-secondary);max-width:660px;margin:0 auto 18px;line-height:1.6}.trust-badges{display:flex;justify-content:center;flex-wrap:wrap;gap:10px 18px;margin-top:4px}.trust-badge-item,.trust-item,.trust-badge{display:inline-flex;align-items:center;gap:6px;font-size:.84rem;font-weight:600;color:var(--text-secondary)}.trust-badge-item svg,.trust-item svg,.trust-badge svg{width:15px;height:15px;color:var(--success);flex-shrink:0}.site-footer{background:#fff;border-top:1px solid var(--border);padding:44px 0 32px;margin-top:auto}.site-footer-inner{display:flex;flex-direction:column;gap:24px}@media(min-width:640px){.site-footer-inner{flex-direction:row;align-items:center;justify-content:space-between}}.footer-brand-info{display:flex;flex-direction:column;gap:6px}.footer-privacy-badge{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary);border:1px solid var(--primary-border);padding:4px 12px;border-radius:var(--radius-full);font-size:.78rem;font-weight:700;width:fit-content}.footer-tagline{font-size:.88rem;color:var(--text-secondary)}.footer-tagline a{color:var(--primary);text-decoration:none;font-weight:600}.footer-tagline a:hover{text-decoration:underline}.footer-nav{display:flex;flex-wrap:wrap;gap:16px}.footer-nav a{font-size:.88rem;color:var(--text-secondary);text-decoration:none;transition:color var(--transition-fast)}.footer-nav a:hover{color:var(--primary)}.footer-bottom{margin-top:32px;padding-top:24px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:16px;font-size:.8rem;color:var(--text-muted)}.footer-suite-links{line-height:1.8}.suite-title{font-weight:700;color:var(--text-primary);margin-right:6px}.footer-suite-links a{color:var(--text-secondary);text-decoration:none;transition:color var(--transition-fast)}.footer-suite-links a:hover{color:var(--primary)}.footer-copy{font-size:.8rem;color:var(--text-muted)}