*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#7C3AED;--primary-dark:#6D28D9;--primary-light:#A78BFA;--bg:#0F172A;--bg2:#1E293B;--bg3:#334155;--text:#F1F5F9;--text2:#94A3B8;--border:#475569;--radius:12px;--max-w:1200px}
body{font-family:'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}
a{color:var(--primary-light);text-decoration:none;transition:color .2s}
a:hover{color:#C4B5FD}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
header{background:rgba(15,23,42,.95);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;backdrop-filter:blur(10px)}
header .container{display:flex;align-items:center;justify-content:space-between;padding:14px 24px}
.logo{font-size:22px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px}
.logo-icon{font-size:28px}
nav{display:flex;gap:24px;flex-wrap:wrap}
nav a{color:var(--text2);font-size:15px;font-weight:500;padding:4px 0;position:relative}
nav a:hover,nav a.active{color:var(--primary-light)}
nav a.active::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:2px;background:var(--primary);border-radius:2px}
.breadcrumb{padding:14px 0;max-width:var(--max-w);margin:0 auto;padding-left:24px;padding-right:24px;font-size:14px;color:var(--text2)}
.breadcrumb a{color:var(--text2)}
.breadcrumb a:hover{color:var(--primary-light)}
.hero{background:linear-gradient(135deg,var(--bg) 0%,var(--bg2) 50%,#1a1035 100%);padding:80px 24px;text-align:center;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%237C3AED' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");opacity:.5}
.hero h1{font-size:48px;font-weight:800;margin-bottom:16px;background:linear-gradient(135deg,#F3E8FF,#C4B5FD,#7C3AED);-webkit-background-clip:text;-webkit-text-fill-color:transparent;position:relative}
.hero p{font-size:20px;color:var(--text2);max-width:600px;margin:0 auto 32px;position:relative}
.hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;position:relative}
.btn{background:var(--primary);color:#fff;padding:14px 28px;border-radius:var(--radius);font-weight:600;font-size:16px;border:none;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:8px;text-decoration:none}
.btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 25px rgba(124,58,237,.4);color:#fff}
.btn-outline{border:2px solid var(--primary);background:transparent;color:var(--primary-light)}
.btn-outline:hover{background:var(--primary);color:#fff}
.stats-bar{background:var(--bg2);border-bottom:1px solid var(--border);padding:24px 0}
.stats-bar .container{display:flex;justify-content:center;gap:48px;flex-wrap:wrap}
.stat{text-align:center}
.stat .num{font-size:32px;font-weight:800;color:var(--primary-light)}
.stat .label{font-size:13px;color:var(--text2);text-transform:uppercase;letter-spacing:1px}
.section{padding:60px 0}
.section h2{font-size:32px;font-weight:700;margin-bottom:8px;text-align:center}
.section .sub{text-align:center;color:var(--text2);margin-bottom:40px;font-size:16px}
.tools-grid,.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.tool-card,.article-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .25s;text-decoration:none;display:block}
.tool-card:hover,.article-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:0 12px 40px rgba(124,58,237,.2)}
.tool-icon{width:100%;aspect-ratio:2.5/1;display:flex;align-items:center;justify-content:center;font-size:48px;background:linear-gradient(135deg,var(--bg3),var(--bg2))}
.tool-body{padding:20px}
.tool-body h3{font-size:17px;font-weight:600;color:var(--text);margin-bottom:6px}
.tool-body p{font-size:14px;color:var(--text2);line-height:1.5}
.article-img{width:100%;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;font-size:40px}
.article-body{padding:20px}
.article-body h3{font-size:16px;font-weight:600;color:var(--text);margin-bottom:8px;line-height:1.4}
.article-body p{font-size:14px;color:var(--text2);margin-bottom:12px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-tag{display:inline-block;background:rgba(124,58,237,.15);color:var(--primary-light);font-size:11px;padding:2px 8px;border-radius:20px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px}
.article-meta{font-size:12px;color:var(--text2);display:flex;gap:12px}
.tool-page{max-width:700px;margin:0 auto;padding:40px 24px}
.tool-page h1{font-size:32px;margin-bottom:8px}
.tool-desc{color:var(--text2);margin-bottom:24px;font-size:16px}
.tool-page label{display:block;font-weight:600;margin-bottom:8px;font-size:14px;color:var(--text2)}
.tool-page input,.tool-page select,.tool-page textarea{width:100%;padding:12px 16px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:15px;margin-bottom:16px;font-family:inherit}
.tool-page input:focus,.tool-page select:focus,.tool-page textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(124,58,237,.2)}
.tool-page textarea{resize:vertical;min-height:100px}
.result-box{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;text-align:center;margin-bottom:16px}
.result-box .big{font-size:36px;font-weight:800;color:var(--primary-light);margin-bottom:4px}
.result-box .label{font-size:13px;color:var(--text2);text-transform:uppercase;letter-spacing:.5px}
.page-header{background:linear-gradient(135deg,var(--bg2),#1a1035);padding:60px 24px;text-align:center}
.page-header h1{font-size:36px;font-weight:800;margin-bottom:12px}
.page-header p{color:var(--text2);font-size:18px}
.page-content{max-width:800px;margin:0 auto;padding:40px 24px}
.page-content h2{font-size:24px;font-weight:700;margin:32px 0 16px;color:var(--text)}
.page-content p{color:var(--text2);margin-bottom:16px;font-size:16px;line-height:1.7}
.page-content ul{margin:16px 0 16px 24px;color:var(--text2);line-height:2}
.page-content li{margin-bottom:4px}
.page-content a{color:var(--primary-light)}
.page-content a:hover{text-decoration:underline}
.page-content .highlight{background:rgba(124,58,237,.1);border:1px solid rgba(124,58,237,.3);border-radius:var(--radius);padding:20px;margin:24px 0}
footer{background:var(--bg2);border-top:1px solid var(--border);padding:40px 0 0;margin-top:auto}
.footer-grid{max-width:var(--max-w);margin:0 auto;padding:0 24px 32px;display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:32px}
.footer-col h4{font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:1px;margin-bottom:12px;color:var(--primary-light)}
.footer-col ul{list-style:none;line-height:2.2}
.footer-col a{color:var(--text2);font-size:14px}
.footer-col a:hover{color:var(--primary-light)}
.footer-bottom{border-top:1px solid var(--border);padding:20px 24px;text-align:center;font-size:13px;color:var(--text2)}
.footer-bottom a{color:var(--text2)}
.footer-bottom a:hover{color:var(--primary-light)}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-weight:600;margin-bottom:8px;font-size:14px}
.form-group input,.form-group textarea{width:100%;padding:12px 16px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:15px;font-family:inherit}
.form-group textarea{min-height:120px;resize:vertical}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(124,58,237,.2)}
.toc{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin:24px 0}
.toc h4{font-size:14px;font-weight:700;margin-bottom:12px;text-transform:uppercase;letter-spacing:1px;color:var(--primary-light)}
.toc ul{list-style:none;line-height:2}
.toc a{color:var(--text2);font-size:14px}
.toc a:hover{color:var(--primary-light)}
.article-full{max-width:800px;margin:0 auto;padding:40px 24px}
.article-full .article-header{margin-bottom:40px}
.article-full .article-header h1{font-size:36px;font-weight:800;line-height:1.3;margin-bottom:16px}
.article-full .article-header .meta{font-size:14px;color:var(--text2);display:flex;gap:16px;flex-wrap:wrap}
.article-full .article-content h2{font-size:24px;font-weight:700;margin:40px 0 16px;padding-top:20px;border-top:1px solid var(--border)}
.article-full .article-content p{color:var(--text2);margin-bottom:20px;font-size:16px;line-height:1.8}
.article-full .article-content ul{margin:0 0 20px 24px;color:var(--text2);line-height:2}
.article-full .article-content li{margin-bottom:6px}
.article-full .article-content img{width:100%;border-radius:var(--radius);margin:24px 0;border:1px solid var(--border)}
.article-full .article-content blockquote{background:rgba(124,58,237,.1);border-left:4px solid var(--primary);padding:16px 20px;margin:24px 0;border-radius:0 var(--radius) var(--radius) 0;font-style:italic;color:var(--text2)}
.article-full .related{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-top:48px}
.article-full .related h3{font-size:18px;font-weight:700;margin-bottom:16px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.related-card{background:var(--bg3);border-radius:8px;padding:14px;text-decoration:none;display:block;transition:all .2s}
.related-card:hover{background:var(--primary);transform:translateY(-2px)}
.related-card .tag{font-size:11px;color:var(--primary-light);font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.related-card .title{font-size:14px;font-weight:600;color:var(--text);margin-top:4px;line-height:1.4}
.related-card:hover .tag,.related-card:hover .title{color:#fff}
.nav-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:32px;justify-content:center}
.nav-tag{background:var(--bg2);border:1px solid var(--border);color:var(--text2);padding:6px 16px;border-radius:20px;font-size:13px;cursor:pointer;text-decoration:none;transition:all .2s}
.nav-tag:hover,.nav-tag.active{background:var(--primary);border-color:var(--primary);color:#fff}
.search-bar{max-width:500px;margin:0 auto 32px}
.search-bar input{width:100%;padding:14px 20px;background:var(--bg2);border:1px solid var(--border);border-radius:50px;color:var(--text);font-size:16px}
.search-bar input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(124,58,237,.2)}
.top-bar{background:rgba(124,58,237,.1);padding:10px 0;text-align:center;font-size:14px;color:var(--text2)}
.top-bar a{color:var(--primary-light);font-weight:600}
#sitemap{columns:3;column-gap:32px}
#sitemap h3{font-size:18px;margin-bottom:16px;color:var(--primary-light);break-after:avoid}
#sitemap ul{list-style:none;margin-bottom:24px;line-height:2}
#sitemap a{color:var(--text2);font-size:14px}
.error-page{text-align:center;padding:100px 24px}
.error-page h1{font-size:120px;font-weight:800;color:var(--primary);opacity:.3}
.error-page h2{font-size:28px;margin-bottom:16px}
.error-page p{color:var(--text2);margin-bottom:32px}
.spinner{border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:40px;height:40px;animation:spin .8s linear infinite;margin:20px auto}
@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:768px){.hero h1{font-size:32px}.hero p{font-size:16px}nav{gap:12px;font-size:13px}.stats-bar .container{gap:24px}.tools-grid,.articles-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}.article-full .article-header h1{font-size:26px}#sitemap{columns:1}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.logo span:last-child{display:none}.hero{padding:50px 16px}.hero h1{font-size:26px}}