:root{--teal:#5ebdd5;--teal-dark:#397180;--teal-mid:#4a91a3;--teal-light:#95c9d6;--teal-pale:#e8f6fa;--pink:#f3068f;--pink-light:#ff5a9e;--pink-pale:#fce4ec;--navy:#0f1b2d;--navy-light:#1a2d4a;--green:#22c55e;--amber:#f59e0b;--purple:#8b5cf6;--bg:#fafbfc;--surface:#fff;--surface-alt:#cbd5e1;--border:#e2e8f0;--text:#1e293b;--text-mid:#475569;--text-light:#94a3b8}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--teal-dark);text-decoration:none}a:hover{color:var(--pink)}.site-header{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-light) 100%);color:#fff}.header-inner{max-width:1200px;margin:0 auto;padding:1.5rem 2rem;display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center}.logo img{height:36px;width:auto}.header-nav a{color:var(--teal-light);margin-left:1.5rem;font-size:.95rem;font-weight:500}.header-nav a:hover{color:#fff}.header-nav a.btn-customer-area{background:var(--pink);color:#fff;padding:.45rem 1rem;border-radius:6px;font-weight:600}.header-nav a.btn-customer-area:hover{background:var(--pink-light);color:#fff}.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-light) 50%,var(--teal-dark) 100%);padding:3rem 2rem 3.5rem;text-align:center;color:#fff}.hero h1{font-size:2.2rem;font-weight:700;margin-bottom:.5rem}.hero p{font-size:1.15rem;color:var(--teal-light);max-width:600px;margin:0 auto}.search-wrap{max-width:560px;margin:1.5rem auto 0;position:relative}.search-wrap input{width:100%;padding:.85rem 1.2rem .85rem 3rem;border:2px solid rgba(255,255,255,.2);border-radius:12px;background:rgba(255,255,255,.1);color:#fff;font-size:1rem;outline:none;transition:border-color .2s}.search-wrap input::placeholder{color:var(--teal-light)}.search-wrap input:focus{border-color:var(--teal);background:rgba(255,255,255,.15)}.search-wrap .fa{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--teal-light);font-size:1.1rem}.search-results{display:none;position:absolute;width:100%;z-index:100;margin-top:.5rem;background:var(--surface);border:1px solid var(--border);border-radius:10px;max-height:400px;overflow-y:auto;box-shadow:0 8px 30px rgba(0,0,0,.15)}.search-results.active{display:block}.search-results a{display:block;padding:.7rem 1.2rem;border-bottom:1px solid var(--border);color:var(--text);font-size:.9rem}.search-results a:last-child{border-bottom:none}.search-results a:hover{background:var(--teal-pale)}.search-results a small{color:var(--text-light);display:block;font-size:.8rem}.search-results .no-results{padding:1rem 1.2rem;color:var(--text-light);font-size:.9rem}.container{max-width:1200px;margin:0 auto;padding:2.5rem 2rem}.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:1.5rem}.cat-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1.8rem;transition:box-shadow .2s,transform .15s}.cat-card:hover{box-shadow:0 8px 25px rgba(0,0,0,.08);transform:translateY(-2px)}.cat-card-header{display:flex;align-items:center;gap:.75rem;margin-bottom:.5rem}.cat-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}.cat-card-header h2{font-size:1.15rem;font-weight:600}.cat-card-header h2 a{color:var(--text)}.cat-card-header h2 a:hover{color:var(--pink)}.cat-desc{color:var(--text-mid);font-size:.9rem;margin-bottom:1rem}.cat-sections{list-style:none}.cat-sections li{padding:.35rem 0}.cat-sections a{font-size:.9rem;color:var(--teal-dark);display:flex;align-items:center;gap:.4rem}.cat-sections a:hover{color:var(--pink)}.cat-sections .fa{font-size:.7rem;color:var(--text-light)}.article-count{display:inline-block;background:var(--teal-pale);color:var(--teal-dark);font-size:.75rem;font-weight:600;padding:.1rem .5rem;border-radius:99px;margin-left:.3rem}.breadcrumb{font-size:.85rem;color:var(--text-light);margin-bottom:1.5rem;display:flex;align-items:center;gap:.4rem;flex-wrap:wrap}.breadcrumb a{color:var(--teal-mid)}.breadcrumb .sep{color:var(--text-light)}.page-header{margin-bottom:2rem}.page-header h1{font-size:1.8rem;font-weight:700;display:flex;align-items:center;gap:.6rem}.page-header p{color:var(--text-mid);margin-top:.3rem;font-size:1rem}.section-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:1.5rem}.section-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1.5rem;transition:box-shadow .2s}.section-card:hover{box-shadow:0 4px 15px rgba(0,0,0,.06)}.section-card h2{font-size:1.1rem;font-weight:600;margin-bottom:.3rem}.section-card h2 a{color:var(--text)}.section-card h2 a:hover{color:var(--pink)}.section-card .desc{color:var(--text-mid);font-size:.85rem;margin-bottom:1rem}.article-list{list-style:none}.article-list li{padding:.3rem 0;border-top:1px solid var(--border)}.article-list li:first-child{border-top:none}.article-list a{font-size:.88rem;color:var(--teal-dark);display:flex;align-items:center;gap:.4rem}.article-list a:hover{color:var(--pink)}.article-list .fa{font-size:.65rem;color:var(--text-light)}.article-layout{display:grid;grid-template-columns:1fr 280px;gap:3rem;align-items:start}.article-wrap{max-width:820px}.article-wrap h1{font-size:1.8rem;font-weight:700;margin-bottom:.5rem;line-height:1.3}.article-meta{color:var(--text-light);font-size:.85rem;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.article-body{font-size:1rem;line-height:1.75;color:var(--text)}.article-body h2{font-size:1.35rem;font-weight:600;margin:2rem 0 .75rem;color:var(--navy)}.article-body h3{font-size:1.15rem;font-weight:600;margin:1.5rem 0 .5rem;color:var(--navy-light)}.article-body p{margin-bottom:1rem}.article-body ul,.article-body ol{margin:.5rem 0 1rem 1.5rem}.article-body li{margin-bottom:.4rem}.article-body code{background:var(--teal-pale);padding:.15rem .4rem;border-radius:4px;font-size:.9em;color:var(--teal-dark)}.article-body pre{background:var(--navy);color:var(--teal-light);padding:1.2rem;border-radius:8px;overflow-x:auto;margin:1rem 0;font-size:.9rem;line-height:1.5}.article-body pre code{background:none;padding:0;color:inherit}.article-body a{color:var(--teal-dark);text-decoration:underline;text-decoration-color:var(--teal-light);text-underline-offset:2px}.article-body a:hover{color:var(--pink);text-decoration-color:var(--pink-light)}.article-body img{max-width:100%;height:auto;border-radius:8px;border:1px solid var(--border);margin:1rem 0}.article-body table{width:100%;border-collapse:collapse;margin:1rem 0}.article-body th,.article-body td{padding:.6rem .8rem;border:1px solid var(--border);text-align:left;font-size:.9rem}.article-body th{background:var(--teal-pale);font-weight:600;color:var(--teal-dark)}.article-body strong{color:var(--navy)}.sidebar{position:sticky;top:2rem}.sidebar-section{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1.2rem;margin-bottom:1rem}.sidebar-section h3{font-size:.85rem;font-weight:600;color:var(--text-mid);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.8rem}.sidebar-section ul{list-style:none}.sidebar-section li{padding:.25rem 0}.sidebar-section a{font-size:.85rem;color:var(--teal-dark)}.sidebar-section a:hover{color:var(--pink)}.sidebar-section a.active{color:var(--pink);font-weight:600}.site-footer{background:var(--navy);color:var(--text-light);text-align:center;padding:2rem;margin-top:3rem;font-size:.85rem}.site-footer a{color:var(--teal-light)}.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:.5rem;z-index:20}.nav-toggle span{display:block;width:24px;height:2px;background:var(--teal-light);margin:5px 0;border-radius:2px;transition:transform .3s,opacity .3s}.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-toggle.active span:nth-child(2){opacity:0}.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}@media(max-width:900px){.article-layout{grid-template-columns:1fr}.sidebar{position:static}}@media(max-width:768px){.nav-toggle{display:block}.header-inner{flex-wrap:wrap}.header-nav{display:none;flex-direction:column;width:100%;padding-top:1rem;gap:.25rem}.header-nav.open{display:flex}.header-nav a{margin-left:0;padding:.6rem 0;font-size:1rem;border-top:1px solid rgba(255,255,255,.1)}.header-nav a.btn-customer-area{display:inline-block;margin-top:.5rem;text-align:center;width:fit-content}}@media(max-width:600px){.cat-grid,.section-list{grid-template-columns:1fr}.hero h1{font-size:1.6rem}.header-inner{padding:1rem}.container{padding:1.5rem 1rem}}