:root{--navy:#1B3A6B;--navy-dark:#0D1B36;--navy-deeper:#070F1E;--gold:#E8A020;--gold-dark:#C8880A;--gold-light:#FFF3DC;--white:#FFFFFF;--off-white:#F4F6FF;--light-gray:#F8F9FC;--mid-gray:#E2E8F0;--text-dark:#1A1A2E;--text-mid:#4A5568;--text-light:#718096;--font-head:'Montserrat',sans-serif;--font-body:'Open Sans',sans-serif;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 2px 8px rgba(0,0,0,0.06);--shadow-md:0 8px 30px rgba(0,0,0,0.10);--shadow-lg:0 20px 60px rgba(0,0,0,0.12);--transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.arb-container{max-width:1200px;margin:0 auto;padding:0 24px}.arb-container-wide{max-width:1440px;margin:0 auto;padding:0 24px}.arb-section-pad{padding:100px 0}.arb-section-pad-sm{padding:70px 0}.arb-text-center{text-align:center}.arb-section-label{display:inline-flex;align-items:center;gap:8px;background:var(--gold-light);color:var(--navy);font-family:var(--font-head);font-size:0.75rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;padding:6px 16px;border-radius:50px;margin-bottom:18px;border:1px solid rgba(232,160,32,0.3)}.arb-section-label::before{content:'';width:6px;height:6px;background:var(--gold);border-radius:50%;display:inline-block}.arb-section-label.light{background:rgba(232,160,32,0.15);color:var(--gold)}.arb-btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:700;font-size:0.9rem;letter-spacing:0.3px;padding:14px 28px;border-radius:var(--radius-sm);border:2px solid transparent;cursor:pointer;transition:var(--transition);text-align:center;white-space:nowrap;text-decoration:none;box-sizing:border-box}.arb-btn-primary{background:var(--gold);color:#fff !important;border-color:var(--gold)}.arb-btn-primary:hover{background:var(--gold-dark);border-color:var(--gold-dark);transform:translateY(-2px);box-shadow:0 8px 25px rgba(232,160,32,0.35)}.arb-btn-outline{background:transparent;color:#fff !important;border-color:rgba(255,255,255,0.6)}.arb-btn-outline:hover{background:#fff;color:var(--navy) !important;border-color:#fff}.arb-btn-navy{background:var(--navy);color:#fff !important;border-color:var(--navy)}.arb-btn-navy:hover{background:var(--navy-dark);transform:translateY(-2px);box-shadow:0 8px 25px rgba(27,58,107,0.3)}.arb-btn-ghost{background:transparent;color:var(--navy) !important;border-color:var(--navy)}.arb-btn-ghost:hover{background:var(--navy);color:#fff !important}.arb-btn-sm{padding:10px 20px;font-size:0.82rem}.arb-btn-lg{padding:17px 36px;font-size:1rem}.arb-section-head{margin-bottom:56px}.arb-section-head.center{text-align:center}.arb-section-head h2{margin-bottom:16px}.arb-section-head p{font-size:1.05rem;max-width:620px;line-height:1.8}.arb-section-head.center p{margin:0 auto}.arb-fade-up{opacity:0;transform:translateY(30px);transition:opacity 0.7s ease,transform 0.7s ease}.arb-fade-up.visible{opacity:1;transform:translateY(0)}.arb-delay-1{transition-delay:0.1s}.arb-delay-2{transition-delay:0.2s}.arb-delay-3{transition-delay:0.3s}.arb-delay-4{transition-delay:0.4s}@media (max-width:768px){.arb-section-pad{padding:70px 0}.arb-section-pad-sm{padding:48px 0}}.arbtools{--brand:#1B3A6B;--brand-2:#2A5298;--brand-dark:#0D2A5A;--brand-light:#F4F6FF;--accent:#E8A020;--accent-dark:#C8880A;--accent-soft:#FFF8EC;--text:#1A1A2E;--text-soft:#718096;--muted:#4A5568;--card:#ffffff;--border:#E2E8F0;--bg-soft:#F8F9FC;--radius:16px;--radius-sm:10px;--shadow:0 4px 18px rgba(27,58,107,.07);--shadow-md:0 10px 30px rgba(27,58,107,.10);--shadow-lg:0 18px 48px rgba(27,58,107,.16);--grad-navy:linear-gradient(135deg,#1B3A6B 0%,#0D2A5A 100%);--grad-accent:linear-gradient(90deg,#E8A020,#C8880A);--font:'Open Sans',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;--font-head:'Montserrat','Open Sans',sans-serif;font-family:var(--font);color:var(--text);line-height:1.7;display:block;max-width:1440px;margin:0 auto}.arbtools *{box-sizing:border-box}.arbtools h1,.arbtools h2,.arbtools h3,.arbtools h4,.arbtools h5{font-family:var(--font-head);color:var(--text)}.arbtools .arb-pill{display:inline-flex;align-items:center;gap:7px;background:var(--accent-soft);border:1px solid rgba(232,160,32,.28);color:var(--accent-dark);font-family:var(--font-head);font-size:.7rem;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;padding:5px 14px;border-radius:50px;margin-bottom:14px}.arbtools .arb-pill::before{content:'';width:6px;height:6px;background:var(--accent);border-radius:50%}.arbtools .tool-header{text-align:center;margin:0 0 30px}.arbtools .tool-header h1,.arbtools .tool-header h2{font-size:clamp(1.6rem,3.2vw,2.2rem);font-weight:800;margin:0 0 10px;line-height:1.2}.arbtools .tool-header h1 span,.arbtools .tool-header h2 span{color:var(--brand)}.arbtools .tool-header p{color:var(--text-soft);max-width:620px;margin:0 auto;font-size:1.02rem}.arbtools .tool-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow-md);max-width:720px;margin:0 auto;position:relative;overflow:hidden}.arbtools .tool-box::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--brand),var(--brand-2),var(--accent))}.arbtools h3{font-family:var(--font-head);font-weight:700}.arbtools hr{border:none;border-top:1px solid var(--border)}.arbtools .arb-2col{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start;max-width:960px;margin:0 auto}.arbtools .arb-2col .tool-box{max-width:none;margin:0}.arbtools .field{margin-bottom:18px}.arbtools .field label{display:block;font-family:var(--font-head);font-weight:600;margin-bottom:7px;font-size:.92rem;color:var(--text)}.arbtools .field input[type=number],.arbtools .field input[type=text],.arbtools .field input[type=date],.arbtools .field input[type=url],.arbtools .field select,.arbtools .field textarea{width:100%;padding:13px 15px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;font-family:var(--font);outline:none;background:#fff;color:var(--text);transition:border-color .15s,box-shadow .15s}.arbtools .field input:focus,.arbtools .field select:focus,.arbtools .field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,58,107,.12)}.arbtools .field textarea{resize:vertical;min-height:120px}.arbtools .field-row{display:flex;gap:14px;flex-wrap:wrap}.arbtools .field-row .field{flex:1;min-width:140px}.arbtools input[type=range]{width:100%;accent-color:var(--accent)}.arbtools .field-hint{font-size:.78rem;color:var(--text-soft);margin-top:5px}.arbtools .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:#fff;border:none;padding:14px 26px;font-size:.98rem;font-weight:700;border-radius:var(--radius-sm);cursor:pointer;width:100%;font-family:var(--font-head);letter-spacing:.3px;text-decoration:none;text-align:center;transition:background .15s,transform .12s,box-shadow .15s}.arbtools .btn:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 22px rgba(232,160,32,.32)}.arbtools .btn-secondary{background:#fff;color:var(--brand);border:1.5px solid var(--brand);box-shadow:none}.arbtools .btn-secondary:hover{background:var(--brand);color:#fff;box-shadow:none}.arbtools .btn-row{display:flex;gap:12px;margin-top:6px;flex-wrap:wrap}.arbtools .btn-row .btn{width:auto;flex:1}.arbtools .result{margin-top:24px;padding:22px;background:var(--brand-light);border-radius:var(--radius-sm);text-align:center;border:1px solid #DDE6F5}.arbtools .result .big{font-family:var(--font-head);font-size:2.2rem;font-weight:900;color:var(--accent-dark);margin:6px 0;word-break:break-word}.arbtools .result .label{color:var(--text-soft);font-size:.92rem}.arbtools .result.hidden{display:none}.arbtools .result-hero{margin-top:0;padding:28px 24px;background:var(--grad-navy);border-radius:var(--radius);text-align:center;box-shadow:var(--shadow-md);position:relative;overflow:hidden}.arbtools .result-hero::after{content:'';position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.05) 1px,transparent 0);background-size:26px 26px}.arbtools .result-hero .label{font-family:var(--font-head);font-size:.72rem;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:rgba(255,255,255,.65);position:relative}.arbtools .result-hero .big{font-family:var(--font-head);font-size:2.8rem;font-weight:900;color:var(--accent);line-height:1.1;margin:6px 0;position:relative;word-break:break-word}.arbtools .result-hero .sub{font-size:.85rem;color:rgba(255,255,255,.7);position:relative}.arbtools .result-hero.hidden{display:none}.arbtools .result-grid{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:16px}.arbtools .result-grid .item{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 18px;min-width:120px;flex:1}.arbtools .result-grid .item .num{font-family:var(--font-head);font-size:1.35rem;font-weight:800;color:var(--brand)}.arbtools .result-grid .item .cap{font-size:.78rem;color:var(--text-soft);margin-top:2px}.arbtools .arb-bars{display:flex;flex-direction:column;gap:10px;margin-top:18px}.arbtools .arb-bar-row{display:flex;align-items:center;gap:12px}.arbtools .arb-bar-label{font-size:.8rem;color:var(--muted);width:120px;flex-shrink:0;font-family:var(--font-head);font-weight:600}.arbtools .arb-bar-track{flex:1;height:14px;background:var(--bg-soft);border-radius:50px;overflow:hidden}.arbtools .arb-bar-fill{height:100%;border-radius:50px;transition:width .6s ease}.arbtools .arb-bar-fill.navy{background:var(--grad-navy)}.arbtools .arb-bar-fill.gold{background:var(--grad-accent)}.arbtools .arb-bar-val{font-size:.82rem;font-weight:700;color:var(--text);width:90px;text-align:right;flex-shrink:0;font-family:var(--font-head)}.arbtools .arb-note{background:var(--accent-soft);border:1px solid rgba(232,160,32,.22);border-radius:var(--radius-sm);padding:12px 16px;font-size:.85rem;color:var(--muted);margin-top:16px}.arbtools .arb-note strong{color:var(--text)}.arbtools .article{max-width:880px;margin:38px auto 0;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:34px 40px;box-shadow:var(--shadow)}.arbtools .article h2{font-family:var(--font-head);font-size:1.45rem;font-weight:700;margin:26px 0 12px;padding-left:14px;border-left:4px solid var(--accent);line-height:1.3}.arbtools .article h2:first-child{margin-top:0}.arbtools .article h3{font-family:var(--font-head);font-size:1.12rem;font-weight:700;margin:20px 0 8px}.arbtools .article p{margin:0 0 14px;color:var(--muted)}.arbtools .article ul,.arbtools .article ol{margin:0 0 14px 20px}.arbtools .article li{margin-bottom:7px;color:var(--muted)}.arbtools .article strong{color:var(--text)}.arbtools .article a{color:var(--brand);font-weight:600}.arbtools .faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px 18px;color:var(--muted);margin-bottom:10px;background:var(--bg-soft)}.arbtools .faq-item strong{display:block;margin-bottom:5px;color:var(--text);font-family:var(--font-head)}.arbtools .ad-slot{max-width:880px;margin:28px auto;min-height:90px;background:repeating-linear-gradient(45deg,#f1f2f6,#f1f2f6 10px,#e9ebf2 10px,#e9ebf2 20px);border:1px dashed #c7ccd9;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#9aa1b1;font-size:.85rem;text-align:center}.arbtools .hidden{display:none}.arbtools .text-center{text-align:center}.arbtools .mt-2{margin-top:20px}.arbtools #sample{font-size:1.15rem;line-height:1.9;background:var(--brand-light);padding:18px 20px;border-radius:12px;margin-bottom:16px}.arbtools #sample span.correct{color:#10b981}.arbtools #sample span.wrong{color:#ef4444;background:#fee2e2;border-radius:3px}.arbtools #sample span.current{background:#c7d2fe;border-radius:3px}.arbtools #board{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;max-width:420px;margin:0 auto}.arbtools .card{aspect-ratio:1/1;background:var(--brand);border-radius:12px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:2rem;-webkit-user-select:none;user-select:none;transition:transform .15s,background .15s;color:transparent}.arbtools .card.flipped{background:var(--brand-light);color:#1f2937;transform:scale(1.03)}.arbtools .card.matched{background:#d1fae5;color:#059669;cursor:default}@media (max-width:760px){.arbtools .arb-2col{grid-template-columns:1fr}.arbtools .tool-box{padding:24px 20px}.arbtools .article{padding:24px 22px}.arbtools .result-hero .big{font-size:2.2rem}.arbtools .arb-bar-label{width:90px}}.ws-main .entry-content a:not(.button):not(.btn):not(.arb-btn),.ws-main .page-content a:not(.button):not(.btn):not(.arb-btn),.ws-main .post-content a:not(.button):not(.btn):not(.arb-btn){color:#1B3A6B;text-decoration:underline;text-underline-offset:2px;font-weight:600;transition:color 0.2s ease}.ws-main .entry-content a:not(.button):not(.btn):not(.arb-btn):hover,.ws-main .page-content a:not(.button):not(.btn):not(.arb-btn):hover,.ws-main .post-content a:not(.button):not(.btn):not(.arb-btn):hover{color:#E8A020;text-decoration:underline}.ws-compat{width:100%}.ws-gap{display:block}.ws-legal-menu{list-style:none;display:flex;flex-wrap:wrap;gap:6px 18px;margin:0;padding:0}.ws-legal-menu li{margin:0}.ws-legal-menu a{color:inherit;opacity:.82;font-size:.85rem}.ws-legal-menu a:hover{opacity:1;color:var(--gold)}