:root{--primary-color:#4361ee;--secondary-color:#3a0ca3;--accent-color:#7209b7;--light-color:#f8f9fa;--dark-color:#212529;--gray-color:#6c757d;--success-color:#4cc9f0;--warning-color:#f72585;--ascii-primary:#65a30d;--ascii-gradient:linear-gradient(135deg,#84cc16 0%,#65a30d 100%);--border-radius:12px;--box-shadow:0 8px 24px rgba(0,0,0,0.1);--transition:all 0.3s ease}*{margin:0;padding:0;box-sizing:border-box;font-family:'Segoe UI','Microsoft YaHei',monospace}body{background-color:#f0f2f5;color:var(--dark-color);line-height:1.6}.container{width:100%;max-width:1400px;margin:0 auto;padding:0 20px}header{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:white;padding:20px 0;box-shadow:0 4px 12px rgba(0,0,0,0.1);position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:15px}.logo i{font-size:2.5rem}.logo h1{font-size:1.8rem;font-weight:700}.logo span{color:var(--success-color)}nav ul{display:flex;list-style:none;gap:25px}nav a{color:white;text-decoration:none;font-weight:600;font-size:1.1rem;padding:8px 12px;border-radius:6px;transition:var(--transition)}nav a:hover,nav a.active{background-color:rgba(255,255,255,0.2)}main{padding:40px 0}.section-title{font-size:1.8rem;margin-bottom:25px;color:var(--secondary-color);display:flex;align-items:center;gap:10px}.section-title i{color:var(--accent-color)}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px;margin-bottom:40px}.tool-card{background:white;border-radius:var(--border-radius);padding:25px;box-shadow:var(--box-shadow);transition:var(--transition);cursor:pointer;border:2px solid transparent}.tool-card:hover{transform:translateY(-5px);border-color:var(--primary-color)}.tool-card i{font-size:2.5rem;color:var(--primary-color);margin-bottom:15px}.tool-card h3{font-size:1.4rem;margin-bottom:10px;color:var(--dark-color)}.tool-card p{color:var(--gray-color);margin-bottom:20px}.use-tool-btn{background-color:var(--primary-color);color:white;border:none;padding:10px 20px;border-radius:6px;font-weight:600;cursor:pointer;transition:var(--transition);width:100%}.use-tool-btn:hover{background-color:var(--secondary-color)}.tool-detail{background:white;border-radius:var(--border-radius);padding:30px;box-shadow:var(--box-shadow);margin-top:30px;display:none}.tool-detail.active{display:block}.tool-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px;padding-bottom:15px;border-bottom:2px solid #f0f2f5}.tool-header h2{font-size:1.6rem;color:var(--secondary-color)}.close-tool{background:none;border:none;font-size:1.5rem;color:var(--gray-color);cursor:pointer;transition:var(--transition)}.close-tool:hover{color:var(--warning-color)}.ascii-wrapper{background:#f7fee7;border-radius:var(--border-radius);padding:20px;border:1px solid #ecfccb}.search-bar{margin-bottom:20px;position:relative}.search-input{width:100%;padding:12px 20px 12px 50px;border:2px solid #d9f99d;border-radius:10px;font-family:'Consolas',monospace;font-size:1.1rem;outline:none;transition:var(--transition)}.search-input:focus{border-color:var(--ascii-primary);box-shadow:0 0 0 3px rgba(101,163,13,0.1)}.search-icon{position:absolute;left:20px;top:50%;transform:translateY(-50%);color:#a3e635;font-size:1.2rem}.ascii-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:15px}.ascii-card{background:white;border:1px solid #d9f99d;border-radius:10px;padding:15px 10px;text-align:center;cursor:pointer;transition:var(--transition);position:relative}.ascii-card:hover{transform:translateY(-3px);box-shadow:0 5px 15px rgba(101,163,13,0.15);border-color:var(--ascii-primary)}.type-control{border-left:4px solid var(--gray-color)}.type-control .char-display{color:var(--gray-color);font-style:italic}.type-printable{border-left:4px solid var(--ascii-primary)}.type-printable .char-display{color:var(--dark-color);font-weight:700}.card-dec{font-size:0.75rem;color:#94a3b8;position:absolute;top:5px;left:8px}.card-hex{font-size:0.75rem;color:var(--ascii-primary);position:absolute;top:5px;right:8px;font-weight:600}.char-display{font-size:2rem;margin:15px 0;min-height:40px;line-height:40px;font-family:'Consolas',monospace}.is-space .char-display{border:1px dashed #cbd5e1;border-radius:4px;font-size:0.8rem;line-height:30px;color:var(--gray-color)}.card-name{font-size:0.8rem;color:#475569;background:#f1f5f9;padding:2px 6px;border-radius:4px;display:inline-block}@media (max-width:600px){.ascii-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:10px}.char-display{font-size:1.5rem}}