<style>
:root{--p:#4361ee;--a:#06d6a0;--w:#f59e0b;--dk:#1e293b;--dkr:#0f172a;--g1:#f1f5f9;--g2:#e2e8f0;--g3:#cbd5e1;--g5:#64748b;--gp:linear-gradient(135deg,#4361ee,#3a0ca3);--rl:24px;--rm:16px;--rs:12px;--t:all .3s ease;--sl:0 20px 60px rgba(0,0,0,.08);--sm:0 4px 12px rgba(0,0,0,.06);--ss:0 2px 8px rgba(0,0,0,.04);--sx:0 10px 40px rgba(67,97,238,.15);--primary:#4361ee;--chestnut:#4361ee;--chestnut-dark:#3a0ca3;--accent:#4cc9f0;--success:#06d6a0;--snow:#fff;--snow-dark:#f1f5f9;--gray-200:#e2e8f0;--gray-300:#cbd5e1;--gray-500:#64748b;--dark:#1e293b;--grad-primary:linear-gradient(135deg,#4361ee,#3a0ca3);--grad-accent:linear-gradient(135deg,#4cc9f0,#06d6a0);--shadow-sm:0 2px 8px rgba(0,0,0,0.06);--shadow-md:0 8px 25px rgba(67,97,238,0.1);--shadow-lg:0 20px 60px rgba(0,0,0,0.08);--radius-sm:12px;--radius-md:16px;--radius-lg:24px;--transition:all .25s ease;--ga:#64748b}
html[data-theme="dark"]{--p:#818cf8;--a:#34d399;--w:#fbbf24;--dk:#f1f5f9;--dkr:#0f172a;--g1:#1e293b;--g2:#334155;--g3:#475569;--g5:#94a3b8;--gp:linear-gradient(135deg,#818cf8,#6366f1);--primary:#818cf8;--chestnut:#818cf8;--chestnut-dark:#6366f1;--accent:#22d3ee;--success:#34d399;--snow:#1e293b;--snow-dark:#0f172a;--gray-200:#334155;--gray-300:#475569;--gray-500:#94a3b8;--dark:#f1f5f9;--bg-body:#0f172a;--bg-card:#1e293b;--bg-card-hover:#334155;--border:#334155;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;--shadow:0 4px 24px rgba(0,0,0,0.3);--shadow-sm:0 2px 8px rgba(0,0,0,0.2);--shadow-md:0 8px 25px rgba(0,0,0,0.3);--shadow-lg:0 20px 60px rgba(0,0,0,0.4);--ga:#475569}
#app-content{background:linear-gradient(160deg,#f8faff 0%,#f0f4ff 40%,#f5f0ff 100%);min-height:100vh;color:var(--dk)}
#app-content[data-theme="dark"]{background:linear-gradient(160deg,#0f172a 0%,#1e293b 40%,#0f172a 100%)}
#floatThemeToggle{position:fixed;top:80px;right:20px;z-index:999;width:44px;height:44px;border-radius:50%;border:none;background:var(--snow);color:var(--dark);font-size:1.3rem;cursor:pointer;box-shadow:var(--shadow-md);transition:var(--transition);display:flex;align-items:center;justify-content:center}
#floatThemeToggle:hover{transform:scale(1.1)}
#backToTop{position:fixed;bottom:90px;right:20px;z-index:999;width:44px;height:44px;border-radius:50%;border:none;background:var(--gp);color:#fff;font-size:1rem;cursor:pointer;box-shadow:var(--shadow-md);transition:var(--transition);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden}
#backToTop.show{opacity:1;visibility:visible}
#backToTop:hover{transform:translateY(-3px)}
.load-mask{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.55);backdrop-filter:blur(6px);z-index:9999;display:flex;flex-direction:column;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .3s ease}
.load-mask.active{opacity:1;visibility:visible}
.load-spinner{width:48px;height:48px;border:4px solid rgba(255,255,255,.2);border-top:4px solid #818cf8;border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.load-txt{color:#fff;font-size:1.1rem;font-weight:600;margin-top:16px}
.notification{position:fixed;top:100px;right:20px;padding:.8rem 1.3rem;border-radius:12px;color:white;font-weight:600;z-index:10001;opacity:0;transform:translateX(100%);transition:all .3s ease;max-width:340px;box-shadow:0 10px 30px rgba(0,0,0,.2);font-size:.95rem}
.notification.show{opacity:1;transform:translateX(0)}
.notification.success{background:linear-gradient(135deg,var(--a),#059669)}
.notification.error{background:linear-gradient(135deg,#ef4444,#dc2626)}
.notification.warning{background:linear-gradient(135deg,var(--w),#d97706)}
.notification.info{background:linear-gradient(135deg,var(--ga),#475569)}
body{font-family:'Inter',sans-serif;background:linear-gradient(160deg,#f0f4ff 0%,#e8eeff 40%,#f5f0ff 100%)}.hero-section{padding:120px 0 80px;background:linear-gradient(135deg,#4361ee 0%,#3a0ca3 50%,#7209b7 100%);color:#fff;position:relative;overflow:hidden}.hero-section::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:60px;background:linear-gradient(160deg,#f0f4ff 0%,#e8eeff 40%,#f5f0ff 100%);clip-path:ellipse(55% 100% at 50% 100%)}.hero-title{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;margin-bottom:12px}.hero-desc{font-size:1.05rem;opacity:.9;max-width:560px}.tool-wrapper{margin-top:-30px;position:relative;z-index:10;padding-bottom:2rem}.tool-card{background:#fff;border-radius:20px;padding:2rem;box-shadow:0 4px 24px rgba(67,97,238,0.08);border:1px solid rgba(67,97,238,0.08)}.upload-zone{border:2.5px dashed rgba(67,97,238,0.3);border-radius:16px;padding:2.5rem 1.5rem;text-align:center;background:rgba(67,97,238,0.03);cursor:pointer;transition:all .3s}.upload-zone:hover{border-color:var(--primary);background:rgba(67,97,238,0.07)}.content-section{padding:40px 0}.content-card{background:#fff;border-radius:20px;padding:40px;margin-bottom:32px;box-shadow:0 4px 24px rgba(67,97,238,0.08);border:1px solid rgba(67,97,238,0.08)}.content-card h2{font-size:1.4rem;margin-bottom:16px}.content-card p{color:#475569;margin-bottom:14px;line-height:1.8}.content-card ul{color:#475569;margin-bottom:14px;padding-left:20px}.content-card ul li{margin-bottom:6px}@media(max-width:768px){.tool-card{padding:1.2rem}}
img{max-width:100%;height:auto}
.main-nav{background:rgba(255,255,255,.98);backdrop-filter:blur(10px);box-shadow:0 4px 30px rgba(0,0,0,.08);border-bottom:1px solid rgba(0,0,0,.05);padding:1rem 0;position:fixed;width:100%;top:0;z-index:1000}
.navbar-brand{font-family:'Poppins',sans-serif;font-size:1.8rem;font-weight:800;background:var(--gp);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.breadcrumb-nav{background:white;border-bottom:1px solid var(--g2);padding:90px 0 12px;font-size:.9rem}
.breadcrumb-nav a{color:var(--p);text-decoration:none;font-weight:500}
.breadcrumb-nav a:hover{text-decoration:underline}
.breadcrumb-nav span{color:var(--g5);margin:0 8px}
.breadcrumb-nav .current{color:var(--dk);font-weight:600}
.hero-section{background:var(--gp);padding:80px 0 100px;color:white;position:relative;overflow:hidden}
.hero-section::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:80px;background:linear-gradient(to bottom,transparent,#f8fafc);z-index:2}
.hero-title{font-family:'Poppins',sans-serif;font-size:clamp(2rem,5vw,3.2rem);font-weight:900;line-height:1.2;margin-bottom:1.2rem}
.hero-sub{font-size:clamp(1rem,2vw,1.2rem);opacity:.92;margin-bottom:1.8rem;max-width:620px}
.hero-badges{display:flex;flex-wrap:wrap;gap:.7rem;margin-bottom:1.8rem}
.hero-badge{background:rgba(255,255,255,.18);backdrop-filter:blur(8px);border-radius:50px;padding:.4rem 1.2rem;font-weight:600;font-size:.88rem;display:flex;align-items:center;gap:.4rem}
.tool-section{margin-top:-50px;position:relative;z-index:10;padding-bottom:40px}
.tool-card{background:white;border-radius:var(--rl);padding:2rem;box-shadow:0 20px 60px rgba(79,70,229,.15);border:2px solid rgba(79,70,229,.1)}
.step-indicator{display:flex;justify-content:space-between;align-items:center;margin:2rem 0;position:relative}
.step-indicator::before{content:'';position:absolute;top:22px;left:15%;right:15%;height:3px;background:var(--g2);z-index:1}
.step{text-align:center;z-index:2;flex:1}
.step-num{width:46px;height:46px;border-radius:50%;background:var(--g2);color:var(--g5);display:flex;align-items:center;justify-content:center;margin:0 auto 8px;font-weight:700;font-size:1.1rem;border:3px solid white;transition:var(--t)}
.step.active .step-num{background:var(--p);color:white;box-shadow:0 0 0 5px rgba(79,70,229,.2);transform:scale(1.1)}
.step.done .step-num{background:var(--a);color:white}
.step-lbl{font-weight:600;color:var(--g5);font-size:.85rem;transition:var(--t)}
.step.active .step-lbl{color:var(--p);font-weight:700}
.upload-area{border:3px dashed rgba(79,70,229,.3);border-radius:var(--rm);padding:3rem 2rem;text-align:center;background:rgba(79,70,229,.03);transition:var(--t);position:relative;cursor:default!important;user-select:none}
.upload-area.dragover{border-color:var(--p);background:rgba(79,70,229,.08);transform:scale(1.01)}
.upload-icon{width:72px;height:72px;background:var(--gp);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1.2rem;font-size:1.8rem;color:white;box-shadow:0 10px 30px rgba(79,70,229,.3);animation:bob 2s infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.upload-text{font-size:1.3rem;font-weight:700;color:var(--dk);margin-bottom:10px}
.upload-sub{color:var(--g5);margin-bottom:24px;font-size:1rem}
.browse-btn{background:var(--gp);color:white;border:none;padding:14px 36px;border-radius:50px;font-weight:700;font-size:1rem;cursor:pointer!important;transition:var(--t);display:inline-flex;align-items:center;gap:10px;box-shadow:0 8px 25px rgba(79,70,229,.3);pointer-events:auto!important;position:relative;z-index:10}
.browse-btn:hover{transform:translateY(-2px) scale(1.03);box-shadow:0 12px 30px rgba(79,70,229,.4)}
.file-input-wrapper{position:relative;display:inline-block;cursor:pointer!important}
#file-input{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer!important;z-index:20;pointer-events:auto!important}
.preview-section{display:none;animation:fadeUp .5s ease}
.preview-section.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.selection-controls{background:var(--g1);border-radius:var(--rm);padding:20px;margin:20px 0;border:1px solid var(--g2)}
.selection-buttons{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:14px}
.selection-btn{background:white;border:2px solid var(--g3);padding:8px 16px;border-radius:10px;font-weight:600;cursor:pointer;transition:var(--t);display:flex;align-items:center;gap:6px;font-size:.9rem}
.selection-btn:hover{border-color:var(--p);background:rgba(79,70,229,.05);transform:translateY(-1px)}
.file-list-container{margin:20px 0;max-height:260px;overflow-y:auto;border:1px solid var(--g2);border-radius:var(--rm);background:white}
.file-list{list-style:none;padding:0;margin:0}
.file-item{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid var(--g2);transition:var(--t);cursor:pointer}
.file-item:hover{background:rgba(79,70,229,.04)}
.file-item:last-child{border-bottom:none}
.file-checkbox{margin-right:12px;width:18px;height:18px;cursor:pointer}
.file-info{flex:1;min-width:0}
.file-name{font-weight:600;margin-bottom:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:.95rem}
.file-details{display:flex;gap:12px;font-size:.85rem;color:var(--g5)}
.file-item.selected{background:rgba(16,185,129,.08);border-left:3px solid var(--a)}
.thumbnails-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:10px;margin-top:14px;max-height:180px;overflow-y:auto;padding:8px}
.thumbnail-item{position:relative;cursor:pointer;border-radius:8px;overflow:hidden;border:2px solid transparent;transition:var(--t)}
.thumbnail-item:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.1)}
.thumbnail-item.active{border-color:var(--p)}
.thumbnail-item.selected{border-color:var(--a)}
.thumbnail-img{width:100%;height:60px;object-fit:cover;display:flex;align-items:center;justify-content:center;background:var(--gp);color:white;font-weight:700;font-size:.9rem}
.thumbnail-index{position:absolute;top:3px;left:3px;background:rgba(0,0,0,.7);color:white;width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700}
.thumbnail-checkbox{position:absolute;top:3px;right:3px;width:16px;height:16px;cursor:pointer}
.preview-container{text-align:center;margin-bottom:30px;border-radius:var(--rm);background:white;padding:20px;min-height:200px;display:flex;align-items:center;justify-content:center;border:1px solid var(--g2)}
#pdf-preview{max-width:100%;max-height:400px;border-radius:var(--rs);box-shadow:var(--sm)}
.stats-card{background:var(--gp);color:white;border-radius:14px;padding:1.2rem;margin-bottom:1rem;box-shadow:0 8px 24px rgba(79,70,229,.2);transition:var(--t)}
.stats-card:hover{transform:translateY(-3px)}
.stats-icon{font-size:1.6rem;margin-bottom:.6rem;opacity:.9}
.stats-value{font-size:1.6rem;font-weight:800;line-height:1;margin-bottom:.3rem}
.settings-card{background:white;border-radius:14px;padding:1.3rem;margin-bottom:1.3rem;box-shadow:0 6px 24px rgba(0,0,0,.05);border:1px solid var(--g2);transition:var(--t)}
.settings-card:hover{border-color:var(--p);box-shadow:0 10px 30px rgba(79,70,229,.1)}
.settings-card .card-header{background:var(--gp);color:white;border-radius:10px 10px 0 0;padding:.8rem 1.2rem;margin:-1.3rem -1.3rem 1.2rem;font-weight:600;font-size:.95rem}
.control-label{display:block;font-weight:700;margin-bottom:10px;color:var(--dk);align-items:center;gap:10px;font-size:1rem}
.control-icon{color:var(--p)}
.control-select{width:100%;padding:12px 16px;border:2px solid var(--g3);border-radius:var(--rs);font-size:.95rem;font-weight:500;transition:var(--t);background:white;cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='%234f46e5' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;background-size:14px}
.control-select:focus{outline:none;border-color:var(--p);box-shadow:0 0 0 3px rgba(79,70,229,.1)}
.result-card{background:linear-gradient(135deg,var(--a),#059669);color:white;border-radius:var(--rl);padding:2.5rem;text-align:center;box-shadow:0 20px 50px rgba(16,185,129,.3);display:none;animation:slideUp .5s ease}
@keyframes slideUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.article-section{background:white;border-radius:var(--rl);padding:60px 50px;margin:60px auto;box-shadow:var(--sl);position:relative;overflow:hidden}
.article-section::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--gp)}
.article-section h2{font-family:'Poppins',sans-serif;font-size:clamp(1.8rem,3vw,2.5rem);font-weight:900;color:var(--dk);margin-bottom:8px}
.article-section h3{font-family:'Poppins',sans-serif;font-size:clamp(1.3rem,2.5vw,1.7rem);font-weight:800;color:var(--dk);margin:2rem 0 1rem}
.article-section p{color:#444;font-size:1.05rem;line-height:1.9;margin-bottom:1.2rem}
.article-section ul,.article-section ol{color:#444;font-size:1.05rem;line-height:2;margin-bottom:1.2rem;padding-left:1.5rem}
.article-section li{margin-bottom:.4rem}
.article-section strong{color:var(--dk)}
.article-img{border-radius:var(--rm);box-shadow:var(--sm);margin:2rem 0;width:100%;object-fit:cover}
.article-img.fr{float:right;margin:0 0 1.5rem 1.5rem;max-width:380px}
.article-img.fl{float:left;margin:0 1.5rem 1.5rem 0;max-width:380px}
.info-box{background:linear-gradient(135deg,rgba(79,70,229,.06),rgba(124,58,237,.04));border-left:4px solid var(--p);border-radius:0 var(--rs) var(--rs) 0;padding:24px 28px;margin:2rem 0}
.info-box h4{font-weight:800;color:var(--dk);margin-bottom:12px;font-size:1.15rem}
.highlight-box{background:linear-gradient(135deg,rgba(16,185,129,.08),rgba(79,70,229,.05));border-left:4px solid var(--a);border-radius:0 var(--rs) var(--rs) 0;padding:24px 28px;margin:2rem 0}
.highlight-box h4{font-weight:800;color:var(--dk);margin-bottom:12px;font-size:1.15rem}
.warning-box{background:rgba(245,158,11,.08);border-left:4px solid var(--w);border-radius:0 var(--rs) var(--rs) 0;padding:20px 24px;margin:2rem 0}
.warning-box h4{font-weight:800;color:var(--dk);margin-bottom:8px;font-size:1.1rem}
.use-case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin:1.5rem 0}
.use-case-item{background:var(--g1);border-radius:var(--rs);padding:20px;border:1px solid var(--g2);transition:var(--t)}
.use-case-item:hover{border-color:var(--p);transform:translateY(-3px);box-shadow:var(--sm)}
.use-case-item h5{font-weight:700;color:var(--dk);margin-bottom:8px;font-size:1rem}
.use-case-item p{font-size:.92rem;color:var(--g5);margin-bottom:0;line-height:1.7}
.format-table{width:100%;border-collapse:collapse;margin:2rem 0;font-size:.95rem;border-radius:var(--rs);overflow:hidden;box-shadow:var(--ss)}
.format-table thead{background:var(--gp);color:white}
.format-table th{padding:14px 16px;font-weight:700;text-align:left}
.format-table td{padding:12px 16px;border-bottom:1px solid var(--g2);color:#444}
.format-table tbody tr:hover{background:rgba(79,70,229,.04)}
.format-table tbody tr:nth-child(even){background:var(--g1)}
.why-section{background:linear-gradient(135deg,var(--dkr),#1a1a3e);color:white;padding:80px 0;position:relative;overflow:hidden}
.why-section::before{content:'';position:absolute;top:-100px;right:-100px;width:400px;height:400px;background:rgba(79,70,229,.1);border-radius:50%;filter:blur(80px)}
.why-section h2{font-family:'Poppins',sans-serif;font-size:clamp(1.8rem,3.5vw,2.8rem);font-weight:900;margin-bottom:1rem}
.why-section>p{color:rgba(255,255,255,.75);font-size:1.1rem;max-width:650px;margin:0 auto 3rem}
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px}
.why-card{background:rgba(255,255,255,.07);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.12);border-radius:var(--rm);padding:32px 28px;transition:var(--t)}
.why-card:hover{background:rgba(255,255,255,.12);transform:translateY(-5px);border-color:rgba(255,255,255,.25)}
.why-icon{width:56px;height:56px;background:var(--gp);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:white;margin-bottom:18px}
.why-card h4{font-weight:800;font-size:1.15rem;margin-bottom:10px}
.why-card p{color:rgba(255,255,255,.65);font-size:.95rem;line-height:1.7;margin-bottom:0}
.faq-section{background:white;border-radius:var(--rl);padding:60px 50px;margin:60px auto;box-shadow:var(--sl)}
.faq-section h2{font-family:'Poppins',sans-serif;font-size:clamp(1.8rem,3vw,2.5rem);font-weight:900;color:var(--dk);margin-bottom:12px}
.faq-item{background:var(--g1);border-radius:var(--rm);margin-bottom:16px;overflow:hidden;border:1px solid var(--g2);transition:var(--t)}
.faq-item:hover{border-color:var(--p);box-shadow:var(--ss)}
.faq-question{padding:22px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:700;font-size:1.05rem;color:var(--dk);transition:var(--t);background:none;border:none;width:100%;text-align:left;gap:16px}
.faq-question:hover{background:rgba(79,70,229,.04)}
.faq-icon{font-size:1.3rem;color:var(--p);transition:var(--t);min-width:20px;flex-shrink:0}
.faq-item.active .faq-icon{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease}
.faq-item.active .faq-answer{padding:0 24px 24px;max-height:600px}
.faq-answer p{color:#555;line-height:1.8;font-size:1rem;margin-bottom:.8rem}
.faq-answer ul{color:#555;font-size:.95rem;line-height:1.9}
.related-section{padding:60px 0 80px}
.related-section h2{font-family:'Poppins',sans-serif;font-size:clamp(1.8rem,3vw,2.5rem);font-weight:900;color:var(--dk);margin-bottom:12px}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:24px;margin-top:40px}
.tool-link{background:white;border-radius:var(--rm);padding:28px 22px;text-align:center;text-decoration:none;color:var(--dk);transition:var(--t);border:2px solid var(--g2);display:block}
.tool-link:hover{transform:translateY(-6px);box-shadow:var(--sx);border-color:var(--p);color:var(--p)}
.tool-link-icon{width:56px;height:56px;background:var(--gp);border-radius:14px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:1.5rem;color:white;transition:var(--t)}
.tool-link:hover .tool-link-icon{transform:rotate(8deg) scale(1.08)}
.tool-link h4{font-family:'Poppins',sans-serif;font-size:1.1rem;font-weight:800;margin-bottom:8px}
.tool-link p{color:var(--g5);font-size:.88rem;line-height:1.6;margin-bottom:0}
.gradient-text{background:var(--gp);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.clearfix::after{content:'';display:table;clear:both}
.rtf-preview-box{background:var(--g1);border:2px solid var(--g2);border-radius:var(--rm);padding:24px;font-family:'Segoe UI',Tahoma,sans-serif;font-size:.95rem;line-height:1.7;max-height:350px;overflow-y:auto;white-space:pre-wrap;word-wrap:break-word;color:var(--dk);margin-top:16px}
.custom-range-input{display:flex;align-items:center;gap:8px;margin-top:8px}
.custom-range-input input{flex:1;padding:8px 12px;border:2px solid var(--g3);border-radius:8px;font-size:.95rem}
@media(max-width:992px){.article-section{padding:40px 28px}.article-img.fr,.article-img.fl{float:none;max-width:100%;margin:1.5rem 0}.faq-section{padding:40px 28px}}
@media(max-width:768px){.hero-section{padding:100px 0 80px}.step-indicator{flex-direction:column;gap:1.2rem}.step-indicator::before{display:none}.selection-buttons{flex-direction:column}.tools-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.why-grid{grid-template-columns:1fr}.format-table{font-size:.85rem}.format-table th,.format-table td{padding:10px 12px}}
@media(max-width:480px){.tool-card{padding:1.2rem}.tools-grid{grid-template-columns:1fr}}
::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--g1)}::-webkit-scrollbar-thumb{background:var(--gp);border-radius:4px}
html[data-theme="dark"] body{background:#0f172a}
html[data-theme="dark"] .tool-card{background:var(--g1);border-color:var(--g2);box-shadow:0 20px 60px rgba(0,0,0,.3)}
html[data-theme="dark"] .content-card{background:var(--g1);border-color:var(--g2);box-shadow:0 4px 24px rgba(0,0,0,.3);color:var(--dk)}
html[data-theme="dark"] .content-card p{color:var(--g5)}
html[data-theme="dark"] .content-card ul{color:var(--g5)}
html[data-theme="dark"] .content-card h2{color:var(--dk)}
html[data-theme="dark"] .selection-btn{background:var(--g1);border-color:var(--g3);color:var(--dk)}
html[data-theme="dark"] .settings-card{background:var(--g1);border-color:var(--g2)}
html[data-theme="dark"] .settings-card .card-header{background:var(--gp)}
html[data-theme="dark"] .control-label{color:var(--dk)}
html[data-theme="dark"] .control-select{background:var(--g1);border-color:var(--g3);color:var(--dk)}
html[data-theme="dark"] .file-list-container{background:var(--g1);border-color:var(--g2)}
html[data-theme="dark"] .file-item{color:var(--dk)}
html[data-theme="dark"] .preview-container{background:var(--g1);border-color:var(--g2)}
html[data-theme="dark"] .upload-text{color:var(--dk)}
html[data-theme="dark"] .upload-sub{color:var(--g5)}
html[data-theme="dark"] .step-lbl{color:var(--g5)}
html[data-theme="dark"] .faq-section{background:var(--g1);border-color:var(--g2)}
html[data-theme="dark"] .faq-item{background:var(--g1);border-color:var(--g2)}
html[data-theme="dark"] .faq-question{color:var(--dk)}
html[data-theme="dark"] .rtf-preview-box{background:var(--g1);border-color:var(--g2);color:var(--dk)}
html[data-theme="dark"] .stats-card{background:var(--gp)}
html[data-theme="dark"] .related-tools .related-card{background:var(--g1);border-color:var(--g2);color:var(--dk)}
html[data-theme="dark"] .main-nav{background:rgba(15,23,42,.98);border-bottom:1px solid rgba(255,255,255,.05)}
html[data-theme="dark"] .breadcrumb-nav{background:var(--g1);border-bottom-color:var(--g2)}
html[data-theme="dark"] .article-section{background:var(--g1);border-color:var(--g2)}
html[data-theme="dark"] .article-section p{color:var(--g5)}
html[data-theme="dark"] .article-section h2{color:var(--dk)}
html[data-theme="dark"] .article-section h3{color:var(--dk)}
html[data-theme="dark"] .highlight-box{background:linear-gradient(135deg,rgba(52,211,153,.08),rgba(129,140,248,.05))}
html[data-theme="dark"] .info-box{background:linear-gradient(135deg,rgba(129,140,248,.06),rgba(99,102,241,.04))}
html[data-theme="dark"] .warning-box{background:rgba(251,191,36,.08)}
html[data-theme="dark"] .use-case-item{background:var(--g1);border-color:var(--g2)}
html[data-theme="dark"] .use-case-item h5{color:var(--dk)}
html[data-theme="dark"] .use-case-item p{color:var(--g5)}
html[data-theme="dark"] .format-table td{color:var(--g5);border-bottom-color:var(--g2)}
html[data-theme="dark"] .format-table tbody tr:nth-child(even){background:var(--g1)}
html[data-theme="dark"] .format-table tbody tr:hover{background:rgba(129,140,248,.08)}
html[data-theme="dark"] .gradient-text{background:var(--gp);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
html[data-theme="dark"] .trust-bar{background:var(--g1);border-color:var(--g2)}
html[data-theme="dark"] .case-card{background:var(--g1);border-color:var(--g2);color:var(--dk)}
html[data-theme="dark"] .case-card h3{color:var(--dk)}
html[data-theme="dark"] .case-detail{color:var(--g5)}
html[data-theme="dark"] .result-card{background:linear-gradient(135deg,var(--a),#059669)}
