*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden;max-width:100%}:root{--primary:#c96442;--primary-dark:#b8533a;--primary-light:#d4785a;--accent:#c96442;--accent-dark:#b8533a;--bg-page:#faf6f1;--bg-card:#ffffff;--bg-dark:#1a1915;--bg-light:#f0ebe4;--bg-secondary:#f5f0e8;--text:#2d2a26;--text-muted:#6e6a63;--text-secondary:#4d4a44;--success:#2e7d4f;--error:#c53030;--border:#e5dfd6;--border-light:#ece7de;--shadow-sm:0 1px 2px rgba(0,0,0,0.04);--shadow-md:0 4px 16px rgba(0,0,0,0.06);--shadow-lg:0 8px 32px rgba(0,0,0,0.08);--radius:12px;--radius-lg:16px;--radius-xl:24px;--font-sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;--font-serif:'Georgia','Times New 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24px;display:flex;align-items:center;justify-content:space-between}.nav-logo{font-size:1.15rem;font-weight:600;color:var(--text);display:flex;align-items:center;gap:10px;letter-spacing:-0.01em}.nav-logo:hover{text-decoration:none;color:var(--text)}.nav-logo-img{width:44px;height:44px;border-radius:8px}@media (max-width:480px){.nav-logo-img{width:36px;height:36px}}.nav-links{display:flex;align-items:center;gap:8px}.nav-links a{color:var(--text-secondary);font-size:0.9rem;font-weight:450;padding:8px 14px;border-radius:8px;transition:background-color 0.12s ease,border-color 0.12s ease,color 0.12s ease,transform 0.12s ease}.nav-links a:hover{background:var(--bg-light);color:var(--text);text-decoration:none}.nav-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.3rem;cursor:pointer;padding:8px;border-radius:8px}.nav-toggle:hover{background:var(--bg-light)}.nav-user{display:inline-flex;align-items:center;gap:6px;color:var(--text-secondary);font-size:0.9rem;padding:8px 14px}.hero{text-align:center;padding:120px 24px 100px;background:linear-gradient(180deg,var(--bg-page) 0%,var(--bg-secondary) 100%);position:relative;overflow:hidden}.hero-content{position:relative;z-index:1;max-width:720px;margin:0 auto}.hero-logo{width:120px;height:120px;border-radius:24px;margin-bottom:32px;filter:drop-shadow(0 8px 24px rgba(201,100,66,0.18));animation:heroFloat 3.5s ease-in-out infinite;will-change:transform}@keyframes heroFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}@media (prefers-reduced-motion:reduce){.hero-logo{animation:none}}.hero h1{font-family:var(--font-serif);font-size:2.5rem;margin-bottom:20px;font-weight:400;letter-spacing:-0.03em;line-height:1.15;color:var(--text)}.hero-subtitle{font-size:1.2rem;color:var(--text-secondary);margin-bottom:40px;max-width:540px;margin-left:auto;margin-right:auto;line-height:1.7;font-weight:400}.hero-buttons{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:10px;border:1px solid var(--border);cursor:pointer;font-size:0.9rem;font-weight:500;transition:all 0.2s ease;background:var(--bg-card);color:var(--text);font-family:var(--font-sans)}.btn:hover{background:var(--bg-light);text-decoration:none;border-color:var(--border)}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff}.btn-large{padding:14px 32px;font-size:1rem;border-radius:12px}.hero-cta{font-weight:600;font-size:1.05rem;padding:16px 40px;border-radius:50px;background:var(--primary);color:#fff;border:none;box-shadow:0 0 20px rgba(201,100,66,0.35),0 0 40px rgba(201,100,66,0.15);transition:all 0.3s ease;animation:btnGlow 2.5s ease-in-out infinite}.hero-cta:hover{background:var(--primary-dark);box-shadow:0 0 30px rgba(201,100,66,0.5),0 0 60px rgba(201,100,66,0.25);transform:translateY(-1px);text-decoration:none;color:#fff}@keyframes btnGlow{0%,100%{box-shadow:0 0 20px rgba(201,100,66,0.35),0 0 40px rgba(201,100,66,0.15)}50%{box-shadow:0 0 30px rgba(201,100,66,0.5),0 0 60px rgba(201,100,66,0.25),0 0 80px rgba(201,100,66,0.1)}}.hero-trust-badges{display:flex;justify-content:center;gap:32px;margin-top:56px;flex-wrap:wrap}.trust-badge{display:flex;align-items:center;gap:10px;color:var(--text-secondary);font-size:0.88rem;font-weight:450}.trust-badge-icon{width:36px;height:36px;border-radius:10px;background:rgba(201,100,66,0.08);display:flex;align-items:center;justify-content:center;font-size:0.9rem;color:var(--primary)}.section-title{font-family:var(--font-serif);font-size:2.2rem;font-weight:400;text-align:center;margin-bottom:12px;letter-spacing:-0.02em;color:var(--text)}.section-subtitle{text-align:center;color:var(--text-muted);font-size:1.05rem;max-width:560px;margin:0 auto 48px;line-height:1.6}.features{padding:80px 0;background:var(--bg-page)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}.feature-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:32px 28px;transition:all 0.3s ease;animation:fadeInUp 0.6s ease both}.feature-card:nth-child(2){animation-delay:0.1s}.feature-card:nth-child(3){animation-delay:0.2s}.feature-card:nth-child(4){animation-delay:0.3s}.feature-card:nth-child(5){animation-delay:0.4s}.feature-card:nth-child(6){animation-delay:0.5s}.feature-card:hover{box-shadow:var(--shadow-md);border-color:var(--border);transform:translateY(-2px)}.feature-icon{width:44px;height:44px;border-radius:12px;background:rgba(201,100,66,0.08);display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:1.2rem;color:var(--primary)}.feature-card h3{font-size:1.1rem;font-weight:600;margin-bottom:10px;color:var(--text);letter-spacing:-0.01em}.feature-card p{color:var(--text-muted);font-size:0.92rem;line-height:1.65}.how-to{padding:80px 0;background:var(--bg-secondary)}.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;max-width:900px;margin:0 auto}.step{text-align:center;padding:32px 24px;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);animation:fadeInUp 0.6s ease both}.step:nth-child(2){animation-delay:0.1s}.step:nth-child(3){animation-delay:0.2s}.step-number{width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-weight:700;font-size:1.1rem}.step h3{font-size:1.05rem;font-weight:600;margin-bottom:8px;color:var(--text)}.step p{color:var(--text-muted);font-size:0.9rem;line-height:1.6}.faq-section{padding:80px 0;background:var(--bg-page)}.faq-list{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:12px}.faq-item{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);overflow:hidden;transition:background-color 0.12s ease,border-color 0.12s ease,color 0.12s ease,transform 0.12s ease}.faq-item:hover{border-color:var(--border)}.faq-question{display:flex;align-items:center;gap:14px;width:100%;padding:18px 20px;background:transparent;border:none;cursor:pointer;text-align:left;font-size:0.95rem;font-weight:550;color:var(--text);font-family:var(--font-sans);transition:background 0.2s}.faq-question:hover{background:var(--bg-light)}.faq-question-icon{width:32px;height:32px;min-width:32px;border-radius:8px;background:rgba(201,100,66,0.08);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:0.85rem}.faq-question span{flex:1}.faq-arrow{transition:transform 0.3s ease;color:var(--text-muted);font-size:0.8rem}.faq-item.open .faq-arrow{transform:rotate(180deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.3s ease,padding 0.3s ease}.faq-item.open .faq-answer{max-height:500px;padding:0 20px 18px 66px}.faq-answer p{color:var(--text-secondary);font-size:0.9rem;line-height:1.7}.embed-code-section{padding:60px 0;background:var(--bg-secondary)}.embed-code-box{max-width:680px;margin:0 auto;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);overflow:hidden}.embed-code-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:var(--bg-light);border-bottom:1px solid var(--border-light)}.embed-code-label{font-size:0.82rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:0.04em}.embed-copy-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:8px;border:1px solid var(--border);background:var(--bg-card);color:var(--text-secondary);font-size:0.82rem;font-weight:500;cursor:pointer;font-family:var(--font-sans);transition:all 0.2s}.embed-copy-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}.embed-code-content{padding:20px;font-family:'Courier New','Consolas',monospace;font-size:0.85rem;line-height:1.6;color:var(--text);white-space:pre-wrap;word-break:break-all;margin:0;background:var(--bg-card)}.content-block{padding:60px 0;background:var(--bg-page)}.content-block-body{max-width:800px;margin:0 auto;font-size:1rem;line-height:1.8;color:var(--text-secondary)}.content-block-body h2{font-family:var(--font-serif);font-size:1.6rem;font-weight:400;margin:32px 0 12px;color:var(--text)}.content-block-body h3{font-size:1.2rem;font-weight:600;margin:24px 0 8px;color:var(--text)}.content-block-body p{margin-bottom:16px}.content-block-body ul,.content-block-body ol{margin-bottom:16px;padding-left:24px}.content-block-body li{margin-bottom:6px;line-height:1.7}.content-block-body a{color:var(--primary);text-decoration:underline;text-decoration-color:rgba(201,100,66,0.3);text-underline-offset:3px}.content-block-body a:hover{text-decoration-color:var(--primary)}.content-block-body table{width:100%;border-collapse:collapse;margin:16px 0;border-radius:8px;overflow:hidden;border:1px solid var(--border-light)}.content-block-body table th,.content-block-body table td{padding:10px 14px;border:1px solid var(--border-light);text-align:left;font-size:0.9rem}.content-block-body table th{background:var(--bg-light);font-weight:600;color:var(--text)}.content-block-body table td{background:var(--bg-card)}.content-block-body img{border-radius:8px;border:1px solid var(--border-light)}.toc-section{padding:32px 0}.toc-container{max-width:600px;margin:0 auto;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);overflow:hidden}.toc-header{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;cursor:pointer;user-select:none;background:var(--bg-light)}.toc-title{font-weight:600;font-size:0.9rem}.toc-toggle{transition:transform 0.3s ease;font-size:0.8rem;color:var(--text-muted)}.toc-collapsed .toc-list{display:none}.toc-collapsed .toc-toggle{transform:rotate(-90deg)}.toc-list{list-style:none;padding:12px 20px 16px;counter-reset:toc-counter}.toc-item{padding:6px 0;border-bottom:1px solid var(--border-light)}.toc-item:last-child{border-bottom:none}.toc-item a{color:var(--text-secondary);font-size:0.88rem;transition:color 0.2s}.toc-item a:hover{color:var(--primary);text-decoration:none}.site-footer{background:var(--bg-dark);color:rgba(255,255,255,0.7);padding:0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;max-width:1120px;margin:0 auto;padding:56px 24px 24px}.footer-brand{color:rgba(255,255,255,0.5);font-size:0.88rem;line-height:1.7}.footer-brand p{margin-top:14px}.footer-brand .nav-logo{color:#fff}.footer-bottom{text-align:center;padding:20px 24px;border-top:1px solid rgba(255,255,255,0.08);color:rgba(255,255,255,0.5);font-size:0.82rem;max-width:1120px;margin:0 auto}.footer-col h4{font-size:0.8rem;text-transform:uppercase;letter-spacing:0.08em;margin-bottom:16px;color:rgba(255,255,255,0.45);font-weight:600}.footer-col ul{list-style:none}.footer-col ul li{margin-bottom:8px}.footer-col ul li a{color:rgba(255,255,255,0.6);font-size:0.88rem;transition:color 0.2s}.footer-col ul li a:hover{color:#fff;text-decoration:none}.ad-interstitial-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.78);z-index:9999;justify-content:center;align-items:center;contain:layout style paint}@media (min-width:768px){.ad-interstitial-overlay{backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}}.ad-interstitial-overlay.active{display:flex}.ad-interstitial-content{background:var(--bg-card);border-radius:var(--radius-lg);padding:32px;max-width:500px;width:90%;text-align:center;position:relative}.ad-interstitial-close{position:absolute;top:12px;right:12px;background:var(--bg-light);border:none;border-radius:8px;width:36px;height:36px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text);font-size:1rem}.ad-interstitial-close:disabled{opacity:0.3;cursor:not-allowed}.ad-interstitial-timer{color:var(--text-muted);font-size:0.85rem;margin-top:16px}.ad-bottom{position:fixed;bottom:0;left:0;right:0;background:var(--bg-card);border-top:1px solid var(--border);text-align:center;padding:8px;z-index:50}.ad-native{padding:16px 0;background:var(--bg-page)}.contact-page{padding:60px 0;background:var(--bg-page)}.contact-form{max-width:600px;margin:0 auto}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;font-size:0.88rem;font-weight:500;color:var(--text-secondary)}.form-group input,.form-group textarea,.form-group select{width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:10px;background:var(--bg-card);color:var(--text);font-size:0.92rem;font-family:var(--font-sans);transition:border-color 0.2s}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(201,100,66,0.1)}.alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:0.9rem}.alert-success{background:rgba(46,125,79,0.08);color:var(--success);border:1px solid rgba(46,125,79,0.15)}.alert-error{background:rgba(197,48,48,0.08);color:var(--error);border:1px solid rgba(197,48,48,0.15)}.btn-small{padding:6px 12px;font-size:0.82rem;border-radius:8px}.btn-danger{background:var(--error);color:#fff;border-color:var(--error)}.btn-danger:hover{background:#b91c1c;border-color:#b91c1c}.search-bar{display:flex;gap:8px;margin-bottom:20px}.search-bar input{flex:1;padding:10px 14px;border:1px solid var(--border);border-radius:10px;background:var(--bg-card);color:var(--text);font-size:0.9rem;font-family:var(--font-sans)}.pagination{display:flex;justify-content:center;gap:6px;margin-top:24px}.pagination a,.pagination span{padding:8px 14px;border-radius:8px;font-size:0.88rem;border:1px solid var(--border);color:var(--text-secondary)}.pagination span.active{background:var(--primary);color:#fff;border-color:var(--primary)}.pagination a:hover{background:var(--bg-light);text-decoration:none}.blog-list{padding:60px 0}.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}.blog-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);overflow:hidden;transition:all 0.3s ease}.blog-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.blog-card-image{width:100%;height:200px;object-fit:cover}.blog-card-content{padding:24px}.blog-card-title{font-size:1.15rem;font-weight:600;margin-bottom:8px;color:var(--text)}.blog-card-excerpt{color:var(--text-muted);font-size:0.9rem;line-height:1.6;margin-bottom:12px}.blog-card-meta{color:var(--text-muted);font-size:0.8rem}.blog-post{padding:60px 0}.blog-post-content{max-width:760px;margin:0 auto;font-size:1.05rem;line-height:1.85;color:var(--text-secondary)}.blog-post-content h1{font-family:var(--font-serif);font-size:2.4rem;font-weight:400;margin-bottom:16px;color:var(--text)}.blog-post-content h2{font-family:var(--font-serif);font-size:1.6rem;font-weight:400;margin:32px 0 12px;color:var(--text)}.blog-post-content h3{font-size:1.2rem;font-weight:600;margin:24px 0 8px;color:var(--text)}.blog-post-content p{margin-bottom:16px}.blog-post-content img{border-radius:8px;border:1px solid var(--border-light)}.calculator-page{display:flex;min-height:calc(100vh - 60px);gap:0;background:var(--bg-page)}.calculator-wrapper{flex:1;display:flex;justify-content:center;align-items:flex-start;padding:16px;overflow-y:auto}.calc-sidebar{width:300px;background:var(--bg-card);border-left:1px solid var(--border-light);padding:16px;overflow-y:auto}.ti84-body{background:linear-gradient(180deg,#1a1a1e 0%,#111114 40%,#0a0a0c 100%);border-radius:24px;padding:16px 14px 20px;width:400px;box-shadow:0 30px 80px rgba(0,0,0,0.3),0 10px 30px rgba(0,0,0,0.2);border:1px solid #2a2a2e;position:relative}.ti84-screen-bezel{background:#ddd;border-radius:8px;padding:6px;margin:0 4px 10px}.ti84-screen{background:#f0f0ee;border-radius:4px;padding:6px 8px;min-height:160px;border:1px solid #ccc;position:relative}.screen-content{font-family:'Courier New',monospace;color:#111}.screen-input{font-size:1.3rem;text-align:right;padding:2px 0;word-break:break-all;min-height:26px;font-weight:600}.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:0.75rem;font-weight:600;text-transform:capitalize}.badge-active,.badge-published{background:rgba(46,125,79,0.1);color:var(--success)}.badge-free{background:rgba(201,100,66,0.1);color:var(--primary)}.badge-premium{background:rgba(139,92,246,0.1);color:#8b5cf6}.badge-admin{background:rgba(37,99,235,0.1);color:#2563eb}.badge-banned{background:rgba(197,48,48,0.1);color:var(--error)}@media(max-width:768px){.nav-links{display:none;flex-direction:column;position:absolute;top:56px;left:0;right:0;background:rgba(250,246,241,0.98);backdrop-filter:blur(20px);padding:16px;border-bottom:1px solid var(--border-light);gap:4px}.nav-links.active{display:flex}.nav-toggle{display:block}.calc-sidebar{display:none}.calculator-wrapper{padding:8px}.ti84-body{width:100%;max-width:400px}.hero{padding:80px 20px 60px}.hero h1{font-size:2rem}.hero-subtitle{font-size:1.05rem}.hero-logo{width:96px;height:96px;border-radius:20px}.hero-trust-badges{gap:16px}.trust-badge{font-size:0.82rem}.features-grid{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.section-title{font-size:1.8rem}.footer-grid{grid-template-columns:1fr 1fr;gap:24px;padding:32px 20px 16px}}@media(max-width:480px){.hero h1{font-size:1.6rem}.hero{padding:60px 16px 50px}.hero-trust-badges{flex-direction:column;align-items:center;gap:12px}.footer-grid{grid-template-columns:1fr;gap:20px}.section-title{font-size:1.5rem}.hero-cta{padding:14px 32px;font-size:0.95rem}}