:root{--ping-primary:#6366f1;--ping-primary-dark:#4f46e5;--ping-primary-light:#818cf8;--ping-secondary:#8b5cf6;--ping-success:#10b981;--ping-warning:#f59e0b;--ping-danger:#ef4444;--ping-info:#06b6d4;--ping-bg-dark:#0f172a;--ping-bg-darker:#020617;--ping-bg-card:#1e293b;--ping-bg-card-hover:#334155;--ping-text-primary:#f1f5f9;--ping-text-secondary:#cbd5e1;--ping-text-muted:#94a3b8;--ping-border:#334155;--ping-border-light:#475569;--ping-shadow-sm:0 2px 8px rgba(0, 0, 0, 0.1);--ping-shadow-md:0 4px 20px rgba(0, 0, 0, 0.15);--ping-shadow-lg:0 8px 40px rgba(0, 0, 0, 0.2)}.mip-wrapper{background:linear-gradient(180deg,var(--ping-bg-darker) 0,var(--ping-bg-dark) 100%);color:var(--ping-text-primary);min-height:100vh;padding-top:72px}.mip-container{max-width:1200px;margin:0 auto;padding:0 1rem}.mip-hidden{display:none!important}.mip-copy-feedback{position:fixed;top:100px;right:20px;background:linear-gradient(135deg,var(--ping-success),#059669);color:#fff;padding:16px 24px;border-radius:12px;box-shadow:var(--ping-shadow-lg);display:none;align-items:center;gap:12px;z-index:9999;animation:slideInRight .3s ease-out;font-size:15px;font-weight:500}.mip-copy-feedback::before{content:"";width:24px;height:24px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Cpath d='M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z'/%3E%3C/svg%3E") center/contain no-repeat}@keyframes slideInRight{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}.mip-back-to-top{position:fixed;bottom:30px;right:30px;width:50px;height:50px;background:linear-gradient(135deg,var(--ping-primary),var(--ping-secondary));border:none;border-radius:50%;color:#fff;cursor:pointer;box-shadow:var(--ping-shadow-md);opacity:0;visibility:hidden;transition:all .3s ease;z-index:999;display:flex;align-items:center;justify-content:center}.mip-back-to-top::before{content:"";width:24px;height:24px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Cpath d='M5 15l7-7 7 7'/%3E%3C/svg%3E") center/contain no-repeat}.mip-back-to-top.visible{opacity:1;visibility:visible}.mip-back-to-top:hover{transform:translateY(-4px);box-shadow:var(--ping-shadow-lg)}.mip-wrapper-main{padding:60px 0 80px}.mip-content-area{display:flex;flex-direction:column;gap:32px}.mip-card{background:rgba(22,32,50,.5);backdrop-filter:blur(20px);border:1px solid var(--ping-border);border-radius:24px;padding:48px;box-shadow:var(--ping-shadow-sm);animation:fadeIn .6s ease-out}@keyframes fadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.mip-h1{font-size:clamp(32px, 5vw, 48px);font-weight:800;line-height:1.2;margin:0 0 24px;color:var(--ping-text-primary);background:linear-gradient(135deg,#6366f1 0,#8b5cf6 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-align:center;position:relative;padding-bottom:16px}.mip-h1::after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:80px;height:3px;background:linear-gradient(90deg,var(--ping-primary),var(--ping-secondary));border-radius:3px}.mip-h2{font-size:clamp(24px, 4vw, 36px);font-weight:700;line-height:1.3;margin:0 0 20px;color:var(--ping-text-primary);text-align:center;position:relative;padding-bottom:16px}.mip-h2::after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:80px;height:3px;background:linear-gradient(90deg,var(--ping-primary),var(--ping-secondary));border-radius:3px}.mip-info-text{font-size:16px;line-height:1.7;color:var(--ping-text-secondary);margin-bottom:32px;text-align:center}.mip-info-text strong{color:var(--ping-text-primary);font-weight:600}.ping-input-container{margin-bottom:32px}.ping-form{display:flex;gap:12px;margin-bottom:20px;flex-wrap:wrap}.ping-form input[type=text]{flex:1;min-width:280px;padding:16px 20px;background:var(--ping-bg-card);border:2px solid var(--ping-border);border-radius:12px;color:var(--ping-text-primary);font-size:15px;transition:all .3s ease}.ping-form input[type=text]:focus{outline:0;border-color:var(--ping-primary);box-shadow:0 0 0 3px rgba(0,85,186,.1)}.ping-form input[type=text]::placeholder{color:var(--ping-text-muted)}.ping-options{display:flex;flex-wrap:wrap;gap:24px;padding:20px;background:var(--ping-bg-card);border:1px solid var(--ping-border);border-radius:12px}.ping-option{display:flex;align-items:center;gap:10px}.ping-option input[type=number]{width:70px;padding:8px 12px;background:var(--ping-bg-darker);border:1px solid 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input[type=text]{min-width:100%}.ping-options{flex-direction:column;gap:16px}.ping-stats{grid-template-columns:1fr}.ping-chart{height:250px}.mip-info-grid{grid-template-columns:1fr}.mip-feature-list{grid-template-columns:1fr}.mip-faq-question{padding:20px;font-size:15px}.mip-faq-item.active .mip-faq-answer{padding:0 20px 20px}.mip-ip-explain{padding:20px}.mip-copy-feedback{left:20px;right:20px;top:80px}.mip-back-to-top{bottom:20px;right:20px;width:45px;height:45px}.ping-history-item{flex-direction:column;align-items:flex-start}}@media (max-width:480px){.mip-card{padding:24px 16px}.mip-btn{padding:14px 24px;font-size:15px;width:100%}.mip-info-card{padding:20px}.ping-visualization{padding:20px}.ping-chart{height:200px}}img{height:auto;max-width:100%}@media (prefers-reduced-motion:reduce){*,::after,::before{animation-duration:0s!important;animation-iteration-count:1!important;transition-duration:0s!important}}@supports (font-display:swap){*{font-display:swap}}.mip-btn,.mip-feature-item,.mip-info-card,.ping-history-item,.ping-stat{will-change:transform;transform:translateZ(0)}.mip-btn:focus-visible,.mip-faq-question:focus-visible,.ping-form input:focus-visible{outline:2px solid var(--ping-primary);outline-offset:2px}@media print{.mip-back-to-top,.mip-copy-feedback{display:none!important}}