:root{--primary:#0c3547;--primary-dark:#071e2b;--primary-light:#1a6b8a;--accent:#c9963b;--accent-light:#e6b65c;--bg:#f7f5f2;--card:#ffffff;--text:#1c1c1c;--text-light:#5a5a5a;--border:#ddd8cf;--radius:8px;--shadow:0 2px 12px rgba(0,0,0,.06);--max-w:1080px;--nav-bg:rgba(12,53,71,.97)}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:Georgia,'Times New Roman',serif;background:var(--bg);color:var(--text);line-height:1.8}
a{color:var(--primary-light);text-decoration:none}a:hover{color:var(--accent)}
img{max-width:100%;height:auto}
.container{max-width:var(--max-w);margin:0 auto;padding:0 20px}
.navbar{background:var(--nav-bg);backdrop-filter:blur(12px);position:sticky;top:0;z-index:100;border-bottom:3px solid var(--accent)}
.nav-inner{max-width:var(--max-w);margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:58px}
.nav-logo{color:#fff;font-size:1.4rem;font-weight:700;font-family:Georgia,serif;letter-spacing:.5px}
.nav-logo span{color:var(--accent)}
.nav-links{display:flex;gap:22px}
.nav-links a{color:rgba(255,255,255,.85);font-size:.9rem;font-weight:500;font-family:-apple-system,sans-serif;transition:color .2s;letter-spacing:.3px}
.nav-links a:hover{color:var(--accent)}
.hamburger{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}
.hero{background:linear-gradient(160deg,var(--primary-dark) 0%,var(--primary) 50%,var(--primary-light) 100%);color:#fff;padding:58px 20px;text-align:center;border-bottom:4px solid var(--accent)}
.hero h1{font-family:Georgia,serif;font-size:2.3rem;font-weight:700;margin-bottom:12px;letter-spacing:.5px}
.hero p{font-family:-apple-system,sans-serif;font-size:1.05rem;opacity:.88;max-width:580px;margin:0 auto 24px;line-height:1.7}
.hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:11px 28px;border-radius:var(--radius);font-weight:600;font-size:.92rem;font-family:-apple-system,sans-serif;transition:all .2s;letter-spacing:.3px}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-light);transform:translateY(-1px)}
.btn-secondary{background:transparent;color:#fff;border:1.5px solid var(--accent)}
.btn-secondary:hover{background:rgba(201,150,59,.2)}
.section-title{font-family:Georgia,serif;font-size:1.6rem;font-weight:700;margin-bottom:22px;text-align:center;color:var(--primary-dark);padding-top:38px;border-bottom:2px solid var(--accent);display:inline-block;padding-left:20px;padding-right:20px}
.section-wrap{text-align:center;margin-bottom:8px}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(215px,1fr));gap:14px;padding-bottom:22px}
.tool-card{background:var(--card);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s;border:1px solid var(--border);display:block;color:var(--text);border-left:3px solid var(--accent)}
.tool-card:hover{transform:translateY(-3px);box-shadow:0 6px 20px rgba(12,53,71,.1)}
.tool-icon{font-size:1.6rem;display:block;margin-bottom:6px}
.tool-card h3{font-family:Georgia,serif;font-size:.95rem;font-weight:700;margin-bottom:3px;color:var(--primary-dark)}
.tool-card p{font-family:-apple-system,sans-serif;font-size:.8rem;color:var(--text-light)}
.tool-page{max-width:var(--max-w);margin:0 auto;padding:20px}
.breadcrumb{font-size:.84rem;color:var(--text-light);margin-bottom:14px;font-family:-apple-system,sans-serif}
.breadcrumb a{color:var(--primary-light)}
.tool-page h1{font-family:Georgia,serif;font-size:1.7rem;font-weight:700;margin-bottom:8px}
.desc{color:var(--text-light);margin-bottom:20px;font-family:-apple-system,sans-serif}
.calc-box{background:var(--card);padding:24px;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border)}
.calc-box label{display:block;font-weight:600;margin-bottom:5px;font-size:.88rem;font-family:-apple-system,sans-serif}
.calc-box input,.calc-box select{padding:10px 12px;border:1.5px solid var(--border);border-radius:var(--radius);font-size:.95rem;width:100%;max-width:300px;margin-bottom:11px;font-family:-apple-system,sans-serif}
.calc-box button{background:var(--primary);color:#fff;border:none;padding:11px 30px;border-radius:var(--radius);font-size:.95rem;font-weight:600;cursor:pointer;font-family:-apple-system,sans-serif;transition:background .2s}
.calc-box button:hover{background:var(--primary-light)}
.result-box{margin-top:14px;padding:14px;background:var(--bg);border-radius:var(--radius);border-left:3px solid var(--accent);display:none}
.result-box.show{display:block}
.result-box strong{font-size:1.2rem;color:var(--primary-dark)}
.article-page{max-width:800px;margin:0 auto;padding:20px}
.article-meta{display:flex;gap:14px;color:var(--text-light);font-size:.84rem;margin-bottom:20px;font-family:-apple-system,sans-serif}
.article-page h2{font-family:Georgia,serif;font-size:1.25rem;margin:24px 0 10px;color:var(--primary-dark)}
.article-page p{margin-bottom:11px;font-family:-apple-system,sans-serif}
.article-page img{border-radius:var(--radius);margin:16px 0;width:100%}
.tool-mention{color:var(--accent);font-weight:600}
.footer{background:var(--primary-dark);color:rgba(255,255,255,.8);padding:40px 20px 18px;margin-top:40px;border-top:3px solid var(--accent)}
.footer-grid{max-width:var(--max-w);margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:22px}
.footer h4{color:var(--accent);margin-bottom:10px;font-family:Georgia,serif;font-size:.95rem}
.footer a{color:rgba(255,255,255,.65);font-size:.85rem;display:block;margin-bottom:5px;font-family:-apple-system,sans-serif}
.footer a:hover{color:#fff}
.footer-bottom{text-align:center;margin-top:22px;padding-top:14px;border-top:1px solid rgba(255,255,255,.1);font-size:.8rem;font-family:-apple-system,sans-serif}
.static-page{max-width:800px;margin:0 auto;padding:20px}
.static-page h1{font-family:Georgia,serif;font-size:1.7rem;margin-bottom:16px;color:var(--primary-dark)}
.static-page h2{font-family:Georgia,serif;font-size:1.25rem;margin:24px 0 10px;color:var(--primary)}
.static-page p,.static-page li{margin-bottom:10px;color:var(--text-light);font-family:-apple-system,sans-serif}
.static-page ul{padding-left:22px}
@media(max-width:768px){.nav-links{display:none;position:absolute;top:58px;left:0;right:0;background:var(--nav-bg);flex-direction:column;padding:14px 20px;gap:12px}.nav-links.open{display:flex}.hamburger{display:block}.hero h1{font-size:1.55rem}.tool-grid{grid-template-columns:repeat(auto-fill,minmax(155px,1fr));gap:10px}}