*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
    --bg:#0a0e17;--bg-card:#111827;--bg-surface:#1a2332;--bg-elevated:#1e293b;
    --text:#e2e8f0;--text-muted:#94a3b8;--text-dim:#64748b;
    --primary:#00b4d8;--primary-hover:#00d4ff;--primary-glow:rgba(0,180,216,.15);
    --accent:#06d6a0;--accent-hover:#0aeaaf;
    --cyan:#00e5ff;--blue:#3b82f6;--purple:#8b5cf6;--orange:#f59e0b;
    --border:#1e293b;--border-light:#2d3a4d;
    --radius:10px;--radius-lg:16px;--radius-xl:24px;
    --shadow:0 4px 24px rgba(0,0,0,.4);--shadow-lg:0 8px 40px rgba(0,0,0,.5);
    --glow:0 0 20px rgba(0,180,216,.2);
    --font:'Inter',system-ui,-apple-system,sans-serif;
    --font-mono:'JetBrains Mono','Fira Code',monospace;
    --container:1200px;
}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--primary-hover)}
img{max-width:100%;height:auto}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:#fff}
h1{font-size:clamp(2rem,5vw,3.5rem)}
h2{font-size:clamp(1.5rem,3vw,2.5rem)}
h3{font-size:clamp(1.2rem,2vw,1.75rem)}
p{color:var(--text-muted)}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}

.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:var(--radius);font-weight:600;font-size:15px;border:none;cursor:pointer;transition:all .3s;text-decoration:none;line-height:1.4}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 16px rgba(0,180,216,.3)}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 6px 24px rgba(0,180,216,.4);color:#fff}
.btn-secondary{background:var(--bg-surface);color:var(--text);border:1px solid var(--border-light)}
.btn-secondary:hover{background:var(--bg-elevated);border-color:var(--primary);color:#fff}
.btn-accent{background:var(--accent);color:#0a0e17;box-shadow:0 4px 16px rgba(6,214,160,.3)}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-lg{padding:16px 36px;font-size:17px;border-radius:var(--radius-lg)}
.btn-sm{padding:8px 18px;font-size:13px}

.header{position:sticky;top:0;z-index:100;background:rgba(10,14,23,.92);backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:#fff;text-decoration:none;letter-spacing:-.5px}
.logo:hover{color:#fff}
.logo svg{width:36px;height:36px}
.logo span{color:var(--primary)}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:10px 16px;border-radius:var(--radius);font-size:14px;font-weight:500;color:var(--text-muted);transition:all .25s}
.nav a:hover,.nav a.active{color:#fff;background:var(--primary-glow)}
.nav-dropdown{position:relative}
.nav-dropdown-content{position:absolute;top:100%;left:0;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:12px;min-width:260px;opacity:0;visibility:hidden;transform:translateY(8px);transition:all .25s;box-shadow:var(--shadow-lg);z-index:200}
.nav-dropdown:hover .nav-dropdown-content{opacity:1;visibility:visible;transform:translateY(0)}
.nav-dropdown-content a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:8px;font-size:14px;white-space:nowrap}
.nav-dropdown-content a:hover{background:var(--primary-glow);color:var(--primary)}
.nav-dropdown-content a i{font-size:18px;width:22px;text-align:center;color:var(--primary)}
.header-actions{display:flex;align-items:center;gap:8px}
.mobile-toggle{display:none;background:none;border:none;color:var(--text);font-size:26px;cursor:pointer;padding:8px}

.hero{position:relative;padding:100px 0 80px;overflow:hidden;min-height:85vh;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;background:radial-gradient(ellipse at 30% 20%,rgba(0,180,216,.08) 0%,transparent 50%),radial-gradient(ellipse at 70% 80%,rgba(6,214,160,.06) 0%,transparent 50%);z-index:0}
.hero-grid-pattern{position:absolute;inset:0;background-image:linear-gradient(rgba(30,41,59,.3) 1px,transparent 1px),linear-gradient(90deg,rgba(30,41,59,.3) 1px,transparent 1px);background-size:60px 60px;z-index:0}
.hero-content{position:relative;z-index:2;max-width:640px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--primary-glow);border:1px solid rgba(0,180,216,.3);color:var(--primary);padding:8px 18px;border-radius:50px;font-size:13px;font-weight:600;margin-bottom:24px}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
.hero h1{margin-bottom:20px;letter-spacing:-1px}
.hero h1 .gradient-text{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:18px;margin-bottom:36px;line-height:1.7;color:var(--text-muted)}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-visual{position:relative;z-index:2;display:flex;align-items:center;justify-content:center}
.hero-gear-container{position:relative;width:420px;height:420px}
.hero-gear{position:absolute;animation:spin 20s linear infinite}
.hero-gear.gear-1{width:280px;height:280px;top:20px;left:70px}
.hero-gear.gear-2{width:180px;height:180px;top:180px;left:0;animation-direction:reverse;animation-duration:14s}
.hero-gear.gear-3{width:120px;height:120px;top:10px;left:260px;animation-duration:10s}
.hero-gear svg{width:100%;height:100%;filter:drop-shadow(0 0 20px rgba(0,180,216,.2))}
.hero-stats{display:flex;gap:40px;margin-top:48px}
.hero-stat{text-align:left}
.hero-stat h4{font-size:28px;color:var(--primary);font-weight:800}
.hero-stat p{font-size:13px;color:var(--text-dim);margin-top:2px}

@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

.section{padding:80px 0}
.section-dark{background:var(--bg-card)}
.section-header{text-align:center;max-width:700px;margin:0 auto 50px}
.section-header h2{margin-bottom:12px}
.section-header p{font-size:17px;color:var(--text-muted)}
.section-label{display:inline-block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:2px;color:var(--primary);margin-bottom:12px}

.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tool-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:36px;transition:all .35s;position:relative;overflow:hidden}
.tool-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:opacity .35s}
.tool-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--glow)}
.tool-card:hover::before{opacity:1}
.tool-card-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:20px}
.tool-card h3{font-size:20px;margin-bottom:10px}
.tool-card h3 a{color:#fff;text-decoration:none}
.tool-card h3 a:hover{color:var(--primary)}
.tool-card p{font-size:14px;color:var(--text-muted);margin-bottom:20px;line-height:1.7}
.tool-card-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;transition:gap .3s}
.tool-card:hover .tool-card-link{gap:10px}

.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{text-align:center;padding:32px 24px;border-radius:var(--radius-xl);background:var(--bg-card);border:1px solid var(--border);transition:all .3s}
.feature-card:hover{border-color:var(--border-light);transform:translateY(-3px)}
.feature-icon{width:60px;height:60px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:28px}
.feature-card h4{font-size:16px;margin-bottom:8px}
.feature-card p{font-size:13px;color:var(--text-dim);line-height:1.6}

.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;position:relative}
.step{text-align:center;position:relative}
.step-number{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;color:#fff;margin:0 auto 20px;position:relative;z-index:2}
.step h4{font-size:18px;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-muted)}

.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.blog-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);overflow:hidden;transition:all .3s;text-decoration:none}
.blog-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--glow)}
.blog-card-img{height:200px;background:var(--bg-surface);display:flex;align-items:center;justify-content:center;overflow:hidden}
.blog-card-img svg{width:80px;height:80px;opacity:.3}
.blog-card-body{padding:24px}
.blog-card-body h3{font-size:18px;margin-bottom:8px;color:#fff}
.blog-card-body p{font-size:14px;color:var(--text-muted);margin-bottom:12px;line-height:1.6}
.blog-card-meta{font-size:12px;color:var(--text-dim);display:flex;align-items:center;gap:6px}

.blog-layout{display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start}
.blog-article{min-width:0}
.blog-article-header{margin-bottom:32px}
.blog-article-header h1{font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:12px}
.blog-article-meta{display:flex;gap:16px;font-size:13px;color:var(--text-dim)}
.blog-article-meta span{display:flex;align-items:center;gap:6px}
.blog-excerpt{background:var(--bg-surface);border-left:3px solid var(--primary);border-radius:0 var(--radius) var(--radius) 0;padding:16px 20px;margin-bottom:28px}
.blog-excerpt p{font-size:16px;color:var(--text-muted);font-style:italic;margin:0}
.blog-content{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:40px}
.blog-sidebar{position:sticky;top:88px}
.sidebar-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:24px;margin-bottom:20px}
.sidebar-card h4{font-size:16px;margin-bottom:14px;color:#fff}
.sidebar-links{list-style:none;padding:0}
.sidebar-links li{margin-bottom:8px}
.sidebar-links a{color:var(--text-muted);font-size:14px;display:block;padding:6px 0;border-bottom:1px solid var(--border);transition:color .2s}
.sidebar-links a:hover{color:var(--primary)}

.tool-page{padding:40px 0 80px}
.tool-layout{display:grid;grid-template-columns:340px 1fr;gap:32px;align-items:start}
.tool-sidebar{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:28px;position:sticky;top:88px}
.tool-sidebar h3{font-size:18px;margin-bottom:20px;display:flex;align-items:center;gap:8px}
.tool-canvas-wrap{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:24px;min-height:500px;display:flex;flex-direction:column}
.tool-canvas-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.tool-canvas-header h2{font-size:20px}
.canvas-container{flex:1;display:flex;align-items:center;justify-content:center;background:var(--bg);border-radius:var(--radius-lg);border:1px solid var(--border);min-height:420px;position:relative;overflow:hidden}
.canvas-container canvas{max-width:100%}
.tool-specs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
.spec-item{background:var(--bg-surface);border-radius:var(--radius);padding:12px 16px}
.spec-item label{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--text-dim);display:block;margin-bottom:2px}
.spec-item span{font-size:15px;font-weight:600;color:var(--primary);font-family:var(--font-mono)}
.export-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}

.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px}
.form-group small{font-size:11px;color:var(--text-dim);margin-top:4px;display:block}
.form-control{width:100%;padding:10px 14px;background:var(--bg-surface);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;font-family:var(--font);transition:border-color .2s}
.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,180,216,.1)}
select.form-control{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}
textarea.form-control{resize:vertical;min-height:80px}
.range-wrap{display:flex;align-items:center;gap:12px}
.range-wrap input[type=range]{flex:1;-webkit-appearance:none;height:6px;border-radius:3px;background:var(--bg-surface);outline:none}
.range-wrap input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;box-shadow:0 0 8px rgba(0,180,216,.4)}
.range-value{min-width:44px;text-align:right;font-weight:600;font-family:var(--font-mono);color:var(--primary);font-size:14px}

.breadcrumbs{padding:16px 0;font-size:14px;color:var(--text-dim);border-bottom:1px solid var(--border)}
.breadcrumbs a{color:var(--text-muted)}
.breadcrumbs a:hover{color:var(--primary)}
.breadcrumbs span{margin:0 8px;opacity:.5}

.page-content{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:40px}
.page-content h1{font-size:32px;margin-bottom:16px}
.page-content h2{font-size:24px;margin-top:32px;margin-bottom:12px}
.page-content h3{font-size:20px;margin-top:24px;margin-bottom:10px}
.page-content p{margin-bottom:16px;line-height:1.8}
.page-content ul,.page-content ol{margin:16px 0;padding-left:24px}
.page-content li{margin-bottom:8px;color:var(--text-muted);line-height:1.7}
.page-content a{color:var(--primary)}

.footer{background:var(--bg-card);border-top:1px solid var(--border);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.footer h5{font-size:16px;margin-bottom:16px;color:#fff}
.footer p{font-size:14px;color:var(--text-muted);line-height:1.7}
.footer-links{list-style:none}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--text-muted);font-size:14px;transition:color .2s}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{margin-top:40px;padding:20px 0;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--text-dim)}
.footer-social{display:flex;gap:12px}
.footer-social a{width:36px;height:36px;border-radius:50%;background:var(--bg-surface);display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:all .3s;font-size:16px}
.footer-social a:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}

.flash{padding:14px 20px;border-radius:var(--radius);margin:16px 0;font-size:14px;font-weight:500}
.flash-success{background:rgba(6,214,160,.1);border:1px solid rgba(6,214,160,.3);color:var(--accent)}
.flash-error{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);color:#ef4444}

.pagination{display:flex;justify-content:center;gap:6px;margin-top:40px}
.pagination a,.pagination span{padding:8px 14px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text-muted);background:var(--bg-card);border:1px solid var(--border);transition:all .2s}
.pagination a:hover{border-color:var(--primary);color:var(--primary)}
.pagination .active{background:var(--primary);color:#fff;border-color:var(--primary)}

.cta-section{background:linear-gradient(135deg,rgba(0,180,216,.1),rgba(6,214,160,.05));border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:60px 0;text-align:center}
.cta-section h2{margin-bottom:12px}
.cta-section p{margin-bottom:28px;font-size:17px}

.scroll-top{position:fixed;bottom:24px;right:24px;width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;border:none;cursor:pointer;font-size:20px;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .3s;z-index:90;box-shadow:0 4px 16px rgba(0,180,216,.3)}
.scroll-top.visible{opacity:1;visibility:visible}
.scroll-top:hover{transform:translateY(-3px);background:var(--primary-hover)}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}

.about-hero{padding:80px 0 40px;text-align:center;background:radial-gradient(ellipse at 50% 0%,rgba(0,180,216,.08),transparent 60%)}
.about-hero h1{margin-bottom:16px}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:40px}
.about-value{padding:28px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);transition:all .3s}
.about-value:hover{border-color:var(--primary);transform:translateY(-2px)}
.about-value h4{font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.about-value p{font-size:14px;color:var(--text-muted);line-height:1.7}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.contact-info-card{background:var(--bg-surface);border-radius:var(--radius-lg);padding:20px;display:flex;align-items:flex-start;gap:14px;border:1px solid var(--border);transition:all .3s}
.contact-info-card:hover{border-color:var(--primary)}
.contact-info-card .icon{width:44px;height:44px;border-radius:12px;background:var(--primary-glow);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.contact-info-card .icon svg{width:20px;height:20px;color:var(--primary)}
.contact-info-card h4{font-size:15px;margin-bottom:4px}
.contact-info-card p{font-size:14px;color:var(--text-muted)}

@media(max-width:1024px){
    .tools-grid{grid-template-columns:repeat(2,1fr)}
    .features-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr}
    .tool-layout{grid-template-columns:1fr}
    .tool-sidebar{position:static}
    .hero-gear-container{width:300px;height:300px}
    .hero-gear.gear-1{width:200px;height:200px;top:20px;left:50px}
    .hero-gear.gear-2{width:130px;height:130px;top:130px;left:0}
    .hero-gear.gear-3{width:90px;height:90px;top:10px;left:190px}
    .about-grid{grid-template-columns:1fr}
    .contact-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
    .nav{display:none;position:fixed;top:72px;left:0;right:0;background:var(--bg-card);border-bottom:1px solid var(--border);flex-direction:column;padding:16px;gap:4px;z-index:100}
    .nav.show-mobile{display:flex}
    .nav-dropdown-content{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;background:transparent;padding:0 0 0 20px;min-width:auto}
    .mobile-toggle{display:block}
    .hero{min-height:auto;padding:60px 0}
    .hero .container{flex-direction:column}
    .hero-visual{display:none}
    .hero-stats{gap:24px}
    .tools-grid{grid-template-columns:1fr}
    .features-grid{grid-template-columns:1fr}
    .steps-grid{grid-template-columns:1fr;gap:24px}
    .blog-grid{grid-template-columns:1fr}
    .blog-layout{grid-template-columns:1fr}
    .blog-sidebar{position:static}
    .grid-2{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;gap:12px;text-align:center}
    .tool-specs{grid-template-columns:1fr}
    .hero h1{font-size:2rem}
    .section{padding:50px 0}
    .page-content{padding:24px}
}

.unit-toggle-wrap{margin-bottom:18px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.unit-toggle-label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px}
.unit-toggle{display:flex;gap:0;border-radius:8px;overflow:hidden;border:1px solid var(--border)}
.unit-btn{flex:1;padding:8px 10px;font-size:12px;font-weight:600;border:none;cursor:pointer;background:var(--bg-surface);color:var(--text-muted);transition:all .2s;font-family:var(--font)}
.unit-btn.active{background:var(--primary);color:#fff}
.unit-btn:hover:not(.active){background:var(--bg-elevated);color:var(--text)}

.presets-wrap{margin-bottom:18px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.presets-label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px}
.presets-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.preset-btn{padding:7px 8px;font-size:11px;font-weight:600;border:1px solid var(--border);border-radius:6px;background:var(--bg-surface);color:var(--text-muted);cursor:pointer;transition:all .2s;font-family:var(--font);text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.preset-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-glow)}

.validation-box{margin-top:16px}
.val-error{display:flex;align-items:flex-start;gap:8px;padding:8px 12px;background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.25);border-radius:6px;font-size:12px;color:#ef4444;margin-bottom:6px;line-height:1.4}
.val-error svg{flex-shrink:0;margin-top:1px}
.val-warning{display:flex;align-items:flex-start;gap:8px;padding:8px 12px;background:rgba(245,158,11,.08);border:1px solid rgba(245,158,11,.25);border-radius:6px;font-size:12px;color:#f59e0b;margin-bottom:6px;line-height:1.4}
.val-warning svg{flex-shrink:0;margin-top:1px}

.glossary-grid{display:grid;gap:16px;margin-top:24px}
.glossary-item{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;transition:border-color .2s}
.glossary-item:hover{border-color:var(--primary)}
.glossary-item h3{font-size:17px;margin-bottom:6px;display:flex;align-items:center;gap:8px}
.glossary-item h3 .tag{font-size:10px;padding:2px 8px;border-radius:4px;background:var(--primary-glow);color:var(--primary);font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.glossary-item p{font-size:14px;color:var(--text-muted);line-height:1.7;margin:0}
.glossary-item .formula{font-family:var(--font-mono);font-size:13px;color:var(--accent);margin-top:6px;display:block}
.glossary-search{margin-bottom:24px}
.glossary-search input{width:100%;padding:12px 16px 12px 44px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:15px;font-family:var(--font);transition:border-color .2s;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:14px center}
.glossary-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,180,216,.1)}

.changelog-list{margin-top:24px}
.changelog-entry{padding:24px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;position:relative;padding-left:32px}
.changelog-entry::before{content:'';position:absolute;left:12px;top:32px;bottom:-16px;width:2px;background:var(--border)}
.changelog-entry:last-child::before{display:none}
.changelog-entry .version-badge{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--primary);font-family:var(--font-mono);margin-bottom:4px}
.changelog-entry .version-date{font-size:12px;color:var(--text-dim);margin-bottom:12px;display:block}
.changelog-entry ul{list-style:none;padding:0;margin:0}
.changelog-entry li{font-size:14px;color:var(--text-muted);padding:4px 0;padding-left:20px;position:relative;line-height:1.6}
.changelog-entry li::before{content:'';position:absolute;left:4px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--primary)}
.changelog-entry .tag-new{color:#06d6a0;font-size:11px;font-weight:700;text-transform:uppercase;margin-right:4px}
.changelog-entry .tag-fix{color:#f59e0b;font-size:11px;font-weight:700;text-transform:uppercase;margin-right:4px}
.changelog-entry .tag-improve{color:#3b82f6;font-size:11px;font-weight:700;text-transform:uppercase;margin-right:4px}

.comparison-table-section{padding:60px 0}
.comparison-table-section h2{margin-bottom:8px}
.comparison-table-section>div>p{font-size:15px;color:var(--text-muted);margin-bottom:24px}
.comparison-table-wrap{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--border)}
.comparison-table{width:100%;border-collapse:collapse;font-size:14px}
.comparison-table thead th{background:var(--bg-surface);padding:14px 18px;text-align:left;font-weight:700;color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.5px;border-bottom:2px solid var(--primary)}
.comparison-table thead th:first-child{border-radius:var(--radius-lg) 0 0 0}
.comparison-table thead th:last-child{border-radius:0 var(--radius-lg) 0 0}
.comparison-table thead th.current{color:var(--primary);background:rgba(0,180,216,.08)}
.comparison-table tbody td{padding:13px 18px;border-bottom:1px solid var(--border);color:var(--text-muted);vertical-align:top;line-height:1.6}
.comparison-table tbody tr:last-child td{border-bottom:none}
.comparison-table tbody tr:hover td{background:rgba(0,180,216,.03)}
.comparison-table tbody td:first-child{font-weight:600;color:var(--text);white-space:nowrap}
.comparison-table tbody td.current{background:rgba(0,180,216,.04);color:var(--text)}
.comparison-table .rating-high{color:var(--accent);font-weight:600}
.comparison-table .rating-med{color:var(--orange);font-weight:600}
.comparison-table .rating-low{color:#ef4444;font-weight:600}

.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:border-color .2s}
.faq-item:hover,.faq-item[open]{border-color:rgba(0,180,216,.3)}
.faq-item summary{padding:20px 24px;cursor:pointer;font-weight:600;font-size:15px;color:var(--text);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;transition:color .2s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';font-size:20px;font-weight:400;color:var(--primary);transition:transform .2s;flex-shrink:0}
.faq-item[open] summary::after{content:'-'}
.faq-item[open] summary{color:var(--primary)}
.faq-item p{padding:0 24px 20px;color:var(--text-muted);line-height:1.7;font-size:14px}