body{margin:0;padding:0;min-height:100vh;width:100%;overflow-x:hidden}#root{width:100%;min-height:100vh}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--yinmn-blue: #485696;--platinum: #e7e7e7;--sunset: #f9c784;--pumpkin: #fc7a1e;--golden-gate-bridge: #f24c00;--text-dark: #333333;--text-light: #666666;--text-muted: #888888;--white: #ffffff;--black: #000000;--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--bg-tertiary: #e9ecef;--bg-dark: #1a1a2e;--success: #28a745;--error: #dc3545;--warning: #ffc107;--info: #17a2b8;--gradient-primary: linear-gradient(135deg, var(--yinmn-blue) 0%, #3a4a7c 100%);--gradient-accent: linear-gradient(135deg, var(--pumpkin) 0%, var(--golden-gate-bridge) 100%);--gradient-warm: linear-gradient(135deg, var(--sunset) 0%, var(--pumpkin) 100%);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4rem;--radius-sm: .25rem;--radius: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-md: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, .25);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "Fira Code", "Consolas", monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: 2.25rem;--text-5xl: 3rem;--leading-tight: 1.25;--leading-normal: 1.5;--leading-relaxed: 1.625;--transition-fast: .15s ease;--transition: .2s ease;--transition-slow: .3s ease;--ad-margin: 24px;--ad-padding: 12px;--container-max: 1280px;--container-padding: 1rem}[data-theme=dark]{--text-dark: #f0f0f0;--text-light: #b0b0b0;--text-muted: #808080;--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-tertiary: #0f3460}html{font-size:16px;scroll-behavior:smooth;overflow-x:hidden}body{font-family:var(--font-family);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--text-dark);background-color:var(--bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:var(--leading-tight);color:var(--text-dark)}h1{font-size:var(--text-4xl)}h2{font-size:var(--text-3xl)}h3{font-size:var(--text-2xl)}h4{font-size:var(--text-xl)}h5{font-size:var(--text-lg)}h6{font-size:var(--text-base)}p{margin-bottom:var(--spacing-md);color:var(--text-light)}a{color:var(--yinmn-blue);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--pumpkin)}.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 var(--container-padding)}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.gap-lg{gap:var(--spacing-lg)}.grid{display:grid}.hidden{display:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-lg);font-size:var(--text-base);font-weight:600;border:none;border-radius:var(--radius);cursor:pointer;transition:all var(--transition);text-decoration:none}.btn-primary{background:var(--gradient-accent);color:var(--white)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-secondary{background:var(--bg-secondary);color:var(--text-dark);border:1px solid var(--platinum)}.btn-secondary:hover{background:var(--bg-tertiary)}.btn-lg{padding:var(--spacing-md) var(--spacing-xl);font-size:var(--text-lg)}.card{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden;transition:all var(--transition)}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.card-body{padding:var(--spacing-lg)}.form-group{margin-bottom:var(--spacing-md)}.form-label{display:block;margin-bottom:var(--spacing-xs);font-weight:500;color:var(--text-dark)}.form-input,.form-select,.form-textarea{width:100%;padding:var(--spacing-sm) var(--spacing-md);font-size:var(--text-base);font-family:var(--font-family);color:var(--text-dark);background:var(--bg-primary);border:2px solid var(--platinum);border-radius:var(--radius);transition:all var(--transition)}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--yinmn-blue);box-shadow:0 0 0 3px #4856961a}.form-input::placeholder{color:var(--text-muted)}.result-box{background:linear-gradient(135deg,#4856960d,#f9c7840d);border:2px solid var(--yinmn-blue);border-radius:var(--radius-lg);padding:var(--spacing-xl);margin:var(--spacing-lg) 0}.result-value{font-size:var(--text-4xl);font-weight:700;color:var(--yinmn-blue);margin-bottom:var(--spacing-sm)}.result-label{font-size:var(--text-sm);color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.badge{display:inline-flex;align-items:center;padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--text-xs);font-weight:600;border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.05em}.badge-primary{background:#4856961a;color:var(--yinmn-blue)}.badge-accent{background:#fc7a1e1a;color:var(--pumpkin)}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-lg)}.section{padding:var(--spacing-3xl) 0}.section-title{font-size:var(--text-3xl);font-weight:700;margin-bottom:var(--spacing-lg);text-align:center}.section-subtitle{font-size:var(--text-lg);color:var(--text-light);text-align:center;max-width:600px;margin:0 auto var(--spacing-xl)}.hero{background:var(--gradient-primary);color:var(--white);padding:var(--spacing-3xl) 0;text-align:center}.hero h1{color:var(--white);font-size:var(--text-5xl);margin-bottom:var(--spacing-md)}.hero p{color:#ffffffe6;font-size:var(--text-xl);margin-bottom:var(--spacing-xl)}.search-container{max-width:600px;margin:0 auto}.search-input{width:100%;padding:var(--spacing-md) var(--spacing-lg);font-size:var(--text-lg);border:none;border-radius:var(--radius-xl);box-shadow:var(--shadow-lg)}.category-pills{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);justify-content:center;margin:var(--spacing-xl) 0}.category-pill{padding:var(--spacing-sm) var(--spacing-lg);background:var(--bg-secondary);border-radius:var(--radius-full);font-weight:500;color:var(--text-dark);cursor:pointer;transition:all var(--transition)}.category-pill:hover,.category-pill.active{background:var(--yinmn-blue);color:var(--white)}.tool-card{background:var(--bg-primary);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow);transition:all var(--transition);text-decoration:none;display:block}.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.tool-card-icon{width:48px;height:48px;background:var(--gradient-accent);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:var(--text-xl);margin-bottom:var(--spacing-md)}.tool-card-title{font-size:var(--text-lg);font-weight:600;color:var(--text-dark);margin-bottom:var(--spacing-xs)}.tool-card-description{font-size:var(--text-sm);color:var(--text-light)}[data-theme=dark] .tool-card{background:#242449;border:1px solid rgba(255,255,255,.1);box-shadow:0 4px 12px #0000004d}[data-theme=dark] .tool-card:hover{border-color:#fc7a1e66;box-shadow:0 8px 24px #0006}.ad-box{margin:var(--ad-margin) 0;padding:var(--ad-padding);text-align:center;background:var(--bg-secondary);border:1px dashed var(--platinum);border-radius:var(--radius);min-height:100px;display:flex;flex-direction:column;align-items:center;justify-content:center}.ad-box-label{font-size:var(--text-xs);color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:var(--spacing-sm)}.ad-box-placeholder{color:var(--text-muted);font-size:var(--text-sm)}.faq-item{border-bottom:1px solid var(--platinum)}.faq-question{width:100%;padding:var(--spacing-md) 0;display:flex;justify-content:space-between;align-items:center;background:none;border:none;font-size:var(--text-base);font-weight:600;color:var(--text-dark);cursor:pointer;text-align:left}.faq-question:hover{color:var(--yinmn-blue)}.faq-answer{padding-bottom:var(--spacing-md);color:var(--text-light);line-height:var(--leading-relaxed)}.seo-content{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:var(--spacing-xl);margin:var(--spacing-xl) 0}.seo-content h2{font-size:var(--text-2xl);margin-bottom:var(--spacing-md)}.seo-content p{margin-bottom:var(--spacing-md);line-height:var(--leading-relaxed)}.seo-content ul,.seo-content ol{margin-left:var(--spacing-lg);margin-bottom:var(--spacing-md)}.seo-content li{margin-bottom:var(--spacing-sm);color:var(--text-light)}@media(max-width:768px){:root{--text-4xl: 1.875rem;--text-5xl: 2.25rem}.hero,.section{padding:var(--spacing-xl) 0}.tool-grid{grid-template-columns:1fr}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn var(--transition-slow) ease forwards}.copy-btn{padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--text-xs);background:var(--bg-tertiary);border:none;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition)}.copy-btn:hover{background:var(--yinmn-blue);color:var(--white)}.table-container{overflow-x:auto;margin:var(--spacing-md) 0}table{width:100%;border-collapse:collapse}th,td{padding:var(--spacing-sm) var(--spacing-md);text-align:left;border-bottom:1px solid var(--platinum)}th{background:var(--bg-secondary);font-weight:600}tr:hover{background:var(--bg-secondary)}.code-block{background:var(--bg-dark);color:#f0f0f0;padding:var(--spacing-md);border-radius:var(--radius);font-family:var(--font-mono);font-size:var(--text-sm);overflow-x:auto}.tabs{display:flex;border-bottom:2px solid var(--platinum);margin-bottom:var(--spacing-lg)}.tab-btn{padding:var(--spacing-sm) var(--spacing-lg);background:none;border:none;font-weight:500;color:var(--text-light);cursor:pointer;position:relative;transition:all var(--transition)}.tab-btn:hover{color:var(--text-dark)}.tab-btn.active{color:var(--yinmn-blue)}.tab-btn.active:after{content:"";position:absolute;bottom:-2px;left:0;width:100%;height:2px;background:var(--yinmn-blue)}.spinner{width:40px;height:40px;border:3px solid var(--platinum);border-top-color:var(--yinmn-blue);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.spinner-container{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-sm)}.spinner-inline{display:inline-flex;flex-direction:row;gap:var(--spacing-xs)}.spinner-circle{position:relative;display:flex;align-items:center;justify-content:center}.spinner-ring{border-radius:50%;border-style:solid;animation:spinner-rotate 1s linear infinite}.spinner-label{font-size:var(--text-sm);color:var(--text-light);text-align:center}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.spinner-tiny .spinner-ring{width:16px;height:16px;border-width:2px}.spinner-small .spinner-ring{width:24px;height:24px;border-width:3px}.spinner-medium .spinner-ring{width:40px;height:40px;border-width:3px}.spinner-large .spinner-ring{width:60px;height:60px;border-width:4px}.spinner-large .spinner-label{font-size:var(--text-base)}.spinner-primary .spinner-ring{border-color:var(--platinum);border-top-color:var(--yinmn-blue)}.spinner-accent .spinner-ring{border-color:var(--platinum);border-top-color:var(--pumpkin)}.spinner-light .spinner-ring{border-color:#ffffff4d;border-top-color:var(--white)}.spinner-dark .spinner-ring{border-color:var(--platinum);border-top-color:var(--text-dark)}@keyframes spinner-rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spinner-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#fffc;z-index:100;border-radius:inherit}.spinner-overlay-blur{backdrop-filter:blur(4px)}[data-theme=dark] .spinner-overlay{background:#1a1a2ecc}.loading-button{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm)}.loading-button-active{pointer-events:none}.loading-button-text{opacity:.8}@media(prefers-reduced-motion:reduce){.spinner-ring{animation-duration:2s}}.toast-container{position:fixed;bottom:24px;right:24px;z-index:9999;display:flex;flex-direction:column-reverse;gap:12px;max-width:400px;width:calc(100vw - 48px);pointer-events:none}.toast{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:10px;background:#fff;box-shadow:0 4px 20px #00000026,0 0 0 1px #0000000d;pointer-events:auto;animation:toast-slide-in .3s ease-out;font-size:14px;font-weight:500}@keyframes toast-slide-in{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.toast-icon{width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;flex-shrink:0}.toast-message{flex:1;line-height:1.4;color:#1a1a2e}.toast-close{background:none;border:none;font-size:20px;cursor:pointer;opacity:.5;padding:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;transition:opacity .2s ease;flex-shrink:0}.toast-close:hover{opacity:1}.toast-success{border-left:4px solid #28a745}.toast-success .toast-icon{background:#28a745;color:#fff}.toast-error{border-left:4px solid #dc3545}.toast-error .toast-icon{background:#dc3545;color:#fff}.toast-warning{border-left:4px solid #ffc107}.toast-warning .toast-icon{background:#ffc107;color:#1a1a2e}.toast-info{border-left:4px solid #485696}.toast-info .toast-icon{background:#485696;color:#fff}@media(prefers-color-scheme:dark){.toast{background:#2a2a3e;box-shadow:0 4px 20px #0006,0 0 0 1px #ffffff1a}.toast-message,.toast-close{color:#f0f0f0}}@media(max-width:480px){.toast-container{bottom:16px;right:16px;left:16px;width:auto;max-width:none}.toast{padding:12px 14px}}