:root{--primary:#E65100;--primary-dark:#C44E2A;--primary-light:#FF8A65;--bg:#FDF8F5;--bg2:#F5EDE8;--bg3:#EDE4DC;--text:#2D1F1A;--text2:#6B5A54;--border:#DDD0C8;--radius:12px;--shadow:0 2px 8px rgba(45,31,26,.08);--max:1100px}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-dark)}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
header{background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.08);position:sticky;top:0;z-index:100}
header .container{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;max-width:var(--max)}
.logo{font-size:20px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px}
.logo-icon{font-size:24px}
nav{display:flex;gap:6px;flex-wrap:wrap}
nav a{padding:6px 12px;border-radius:8px;color:var(--text2);font-size:14px;font-weight:500;transition:all .2s}
nav a:hover,nav a.active{background:var(--primary);color:#fff}
.breadcrumb{background:var(--bg2);padding:10px 0;font-size:13px;color:var(--text2)}
.breadcrumb a{color:var(--text2)}
.breadcrumb span{margin:0 4px}
.page-header{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;text-align:center;padding:60px 20px}
.page-header h1{font-size:2.2em;margin-bottom:8px}
.page-header p{opacity:.9;font-size:1.1em}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;padding:20px 0}
.tool-card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);transition:all .2s;display:block;color:var(--text);border:2px solid transparent}
.tool-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 16px rgba(232,97,58,.15)}
.tool-icon{font-size:36px;margin-bottom:10px}
.tool-card h3{font-size:15px;margin-bottom:4px}
.tool-card p{font-size:13px;color:var(--text2)}
.tool-page{max-width:640px;margin:0 auto;padding:40px 20px}
.tool-page h1{font-size:1.8em;margin-bottom:8px}
.tool-desc{color:var(--text2);margin-bottom:24px;font-size:1.05em}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-weight:600;margin-bottom:6px;font-size:14px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 14px;border:2px solid var(--border);border-radius:8px;font-size:16px;background:#fff;transition:border-color .2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}
.btn{display:inline-flex;align-items:center;gap:6px;background:var(--primary);color:#fff;border:none;padding:12px 24px;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s}
.btn:hover{background:var(--primary-dark);color:#fff}
.result-box{background:#fff;border-radius:var(--radius);padding:24px;margin-top:16px;border:2px solid var(--primary-light);text-align:center}
.result-box .big{font-size:2.4em;font-weight:800;color:var(--primary)}
.result-box .label{font-size:14px;color:var(--text2);margin-top:4px;text-transform:uppercase;letter-spacing:.5px}
.sidebar{grid-column:2;grid-row:1/3}
.main-content{grid-column:1;min-width:0}
.index-grid{display:grid;grid-template-columns:1fr 300px;gap:32px;padding:40px 0}
.index-section{background:#fff;border-radius:var(--radius);padding:24px;margin-bottom:24px;box-shadow:var(--shadow)}
.index-section h2{font-size:1.1em;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--primary);color:var(--primary)}
.section-title{font-size:1.1em;color:var(--primary);margin:32px 0 16px;font-weight:700}
.section-title:first-of-type{margin-top:0}
.article-list{list-style:none}
.article-list li{border-bottom:1px solid var(--bg3);padding:14px 0}
.article-list li:last-child{border-bottom:none}
.article-list a{font-weight:600;color:var(--text);font-size:15px}
.article-list a:hover{color:var(--primary)}
.article-list .meta{font-size:12px;color:var(--text2);margin-top:4px}
.article-page{max-width:720px;margin:0 auto;padding:40px 20px}
.article-page h1{font-size:1.8em;margin-bottom:8px;line-height:1.3}
.article-meta{font-size:13px;color:var(--text2);margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.article-page img{width:100%;max-width:680px;border-radius:var(--radius);margin:20px auto;display:block}
.article-page p{margin-bottom:16px;font-size:16px;line-height:1.75}
.article-page h2{margin:28px 0 12px;font-size:1.3em;color:var(--primary)}
.article-page h3{margin:20px 0 8px;font-size:1.1em}
.article-page ul,.article-page ol{margin:12px 0 20px 24px}
.article-page li{margin-bottom:8px;font-size:15px;line-height:1.7}
.article-page strong{color:var(--primary-dark)}
footer{background:var(--text);color:rgba(255,255,255,.7);margin-top:60px;padding:32px 0}
footer a{color:rgba(255,255,255,.8)}
footer a:hover{color:#fff}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:13px}
.privacy-page,.contact-page{max-width:720px;margin:0 auto;padding:40px 20px}
.privacy-page h1,.contact-page h1{font-size:1.8em;margin-bottom:24px}
.privacy-page h2{margin:24px 0 12px;font-size:1.2em;color:var(--primary)}
.privacy-page p,.contact-page p{margin-bottom:14px;font-size:15px;line-height:1.75}
.privacy-page ul{margin:12px 0 16px 24px}
.privacy-page li{margin-bottom:8px;font-size:15px}
.contact-page .contact-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:20px;padding:16px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
.contact-page .contact-icon{font-size:24px;flex-shrink:0}
.related-articles{margin-top:40px;padding-top:24px;border-top:2px solid var(--border)}
.related-articles h3{font-size:1em;color:var(--primary);margin-bottom:12px}
.about-hero{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;text-align:center;padding:60px 20px;border-radius:var(--radius);margin-bottom:32px}
.about-hero h1{font-size:2em;margin-bottom:8px}
.about-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin:24px 0}
.about-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.about-card h3{color:var(--primary);margin-bottom:8px;font-size:1em}
.about-card p{font-size:14px;color:var(--text2);line-height:1.7}
.btn-secondary{display:inline-block;background:var(--bg2);color:var(--text);padding:10px 20px;border-radius:8px;font-size:14px;font-weight:600;transition:all .2s;border:none;cursor:pointer}
.btn-secondary:hover{background:var(--primary);color:#fff}
@media(max-width:768px){.index-grid{grid-template-columns:1fr}.sidebar{grid-column:1}.header .container{flex-direction:column;gap:10px}.nav{flex-wrap:wrap;justify-content:center}.tools-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.tools-grid{grid-template-columns:1fr}}