@keyframes toastSlideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes toastSlideOut{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(20px)}}@keyframes toolResultIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(1turn)}}@keyframes wizardFadeIn{0%{opacity:0;transform:translateX(10px)}to{opacity:1;transform:translateX(0)}}.base64Page{background:var(--color-bg-secondary,#f8fafc);color:var(--color-text-primary,#0f172a);min-height:100vh;padding:32px 5% 48px;transition:background .3s ease,color .3s ease}.base64MainContent{margin:0 auto;max-width:1000px}.base64__tabs{display:flex;margin-bottom:24px}.base64__tab,.base64__tabs{gap:8px;justify-content:center}.base64__tab{align-items:center;background:transparent;border:1px solid var(--color-border,#e2e8f0);border-radius:8px;color:var(--color-text-primary,#0f172a);cursor:pointer;display:inline-flex;font-size:1.6rem;font-weight:600;min-height:48px;padding:12px 24px;text-decoration:none;transition:border-color .15s cubic-bezier(.22,1,.36,1),color .15s cubic-bezier(.22,1,.36,1),background .15s cubic-bezier(.22,1,.36,1)}.base64__tab:hover{background:rgba(37,99,235,.08);border-color:#2563eb;color:#2563eb}.base64__tab:active{background:rgba(37,99,235,.12)}.base64__tab:focus-visible{outline:2px solid #2563eb;outline-offset:2px}.base64__tab:disabled{cursor:not-allowed;opacity:.5}.base64__tab_active{background:#2563eb;border-color:#2563eb;color:#fff}.base64__panel{display:none}.base64__panel_active{display:block}.base64__editor{display:grid;gap:24px;grid-template-columns:1fr auto 1fr}@media(max-width:768px){.base64__editor{grid-template-columns:1fr}}.base64__inputSection,.base64__outputSection{background:var(--color-bg-card,#fff);border:1px solid var(--color-border,#e2e8f0);border-radius:16px;margin-bottom:24px;padding:24px}.base64__inputSection h2,.base64__outputSection h2{font-size:1.8rem;font-weight:600;margin-bottom:16px}.base64__textarea{background:var(--color-bg-input,#f1f5f9);border:1px solid var(--color-border,#e2e8f0);border-radius:8px;color:var(--color-text-primary,#0f172a);font-family:monospace;font-size:1.6rem;font-size:1.5rem;line-height:1.5;line-height:1.6;min-height:120px;min-height:250px;padding:14px 18px;resize:vertical;transition:border-color .15s cubic-bezier(.22,1,.36,1),background .15s cubic-bezier(.22,1,.36,1);width:100%}.base64__textarea::-moz-placeholder{color:var(--color-text-muted,#94a3b8)}.base64__textarea::placeholder{color:var(--color-text-muted,#94a3b8)}.base64__textarea:focus{border-color:var(--color-accent,#2563eb);box-shadow:0 0 0 1px var(--color-accent,#2563eb);outline:none}.base64__textarea:focus-visible{outline:none}.base64__actions{display:flex;flex-direction:column;gap:8px;justify-content:center}@media(max-width:768px){.base64__actions{flex-direction:row;justify-content:center}}.base64__actionBtn{align-items:center;background:#2563eb;border:none;border-radius:8px;color:#fff;cursor:pointer;display:inline-flex;font-size:1.6rem;font-weight:600;gap:8px;justify-content:center;min-height:48px;padding:14px 28px;text-decoration:none;transition:background .15s cubic-bezier(.22,1,.36,1),box-shadow .15s cubic-bezier(.22,1,.36,1);white-space:nowrap}.base64__actionBtn:hover{background:#1d4ed8;box-shadow:0 4px 14px rgba(37,99,235,.15)}.base64__actionBtn:active{background:color-mix(in srgb,#2563eb 90%,#000)}.base64__actionBtn:focus-visible{outline:2px solid #1d4ed8;outline-offset:2px}.base64__actionBtn:disabled{box-shadow:none;cursor:not-allowed;opacity:.5}.base64__copyBtn{align-items:center;background:transparent;border:1px solid var(--color-border,#e2e8f0);border-radius:8px;color:var(--color-text-primary,#0f172a);cursor:pointer;display:inline-flex;font-size:1.6rem;font-weight:600;gap:8px;justify-content:center;margin-top:16px;min-height:48px;padding:14px 28px;text-decoration:none;transition:border-color .15s cubic-bezier(.22,1,.36,1),color .15s cubic-bezier(.22,1,.36,1),background .15s cubic-bezier(.22,1,.36,1);width:100%}.base64__copyBtn:hover{background:rgba(37,99,235,.08);border-color:#2563eb;color:#2563eb}.base64__copyBtn:active{background:rgba(37,99,235,.12)}.base64__copyBtn:focus-visible{outline:2px solid #2563eb;outline-offset:2px}.base64__copyBtn:disabled{cursor:not-allowed;opacity:.5}.base64__dropzone{background:var(--color-bg-card,#fff);border:2px dashed #e2e8f0;border-radius:16px;cursor:pointer;margin-bottom:24px;padding:48px;text-align:center;transition:all .15s cubic-bezier(.22,1,.36,1)}.base64__dropzone svg{color:#94a3b8;margin-bottom:16px}.base64__dropzone p{color:#475569}.base64__dropzone:hover,.base64__dropzone_active{background:rgba(37,99,235,.05);border-color:#2563eb}.base64__imagePreview{background:var(--color-bg-card,#fff);border:1px solid var(--color-border,#e2e8f0);border-radius:16px;margin-bottom:24px;margin-top:24px;padding:24px;text-align:center}.base64__imagePreview img{border-radius:8px;max-height:300px;max-width:100%}.base64__imageOutput{background:var(--color-bg-card,#fff);border:1px solid var(--color-border,#e2e8f0);border-radius:16px;margin-bottom:24px;margin-top:24px;padding:24px}.base64__imageOutput h2{font-size:1.8rem;font-weight:600;margin-bottom:16px}.base64__imageActions{display:flex;gap:16px;margin-top:16px}.base64Toast{animation:toastSlideIn .3s ease forwards;background:#22c55e;border-radius:12px;bottom:24px;box-shadow:0 4px 12px rgba(0,0,0,.08);color:#fff;display:none;font-weight:500;padding:14px 24px;position:fixed;right:24px;z-index:1000}@media(max-width:640px){.base64Toast{bottom:16px;left:16px;right:16px;text-align:center}}.base64Toast_success{background:#22c55e;color:#fff;display:block}.base64Toast_success:before{content:"✓ "}.base64Toast_error{background:#ef4444;color:#fff;display:block}.base64Toast_error:before{content:"✕ "}.base64Toast_info{background:#2563eb;color:#fff;display:block}.base64Toast_info:before{content:"ⓘ "}.base64Toast_warning{background:#eab308;color:#fff;display:block}.base64Toast_warning:before{content:"⚠ "}.base64__about{background:var(--color-bg-card,#fff);border:1px solid var(--color-border,#e2e8f0);border-radius:16px;margin-bottom:24px;margin-top:48px;padding:24px}.base64__aboutTitle{border-bottom:1px solid var(--color-border,#e2e8f0);color:var(--color-text-primary,#0f172a);font-size:2rem;font-weight:600;margin:0 0 16px;padding-bottom:8px}.base64__aboutText{color:#475569;line-height:1.8;margin-bottom:32px}.base64__features{display:grid;gap:16px}.base64__feature{align-items:flex-start;background:rgba(6,182,212,.05);border:1px solid rgba(6,182,212,.1);border-radius:12px;display:flex;gap:16px;padding:16px}.base64__feature h3{font-size:1.6rem;font-weight:600;margin-bottom:4px}.base64__feature p{color:#475569;font-size:1.5rem}.base64__featureIcon{flex-shrink:0;font-size:1.5rem}.base64__usecases{background:var(--color-bg-card,#fff);border:1px solid var(--color-border,#e2e8f0);border-radius:16px;margin-bottom:24px;margin-top:32px;padding:24px}.base64__usecasesTitle{border-bottom:1px solid var(--color-border,#e2e8f0);color:var(--color-text-primary,#0f172a);font-size:2rem;font-weight:600;margin:0 0 24px;padding-bottom:8px}.base64__usecaseGrid{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}@media(max-width:768px){.base64__usecaseGrid{grid-template-columns:1fr}}.base64__usecase{background:hsla(0,0%,100%,.5);border:1px solid #e2e8f0;border-radius:12px;padding:24px;text-align:center}.base64__usecase h3{font-size:1.6rem;font-weight:600;margin-bottom:4px}.base64__usecase p{color:#475569;font-size:1.5rem}.base64__usecaseIcon{display:block;font-size:2rem;margin-bottom:8px}.base64__faq{background:var(--color-bg-card,#fff);border:1px solid var(--color-border,#e2e8f0);border-radius:16px;margin-bottom:24px;margin-top:32px;padding:24px}.base64__faqTitle{border-bottom:1px solid var(--color-border,#e2e8f0);color:var(--color-text-primary,#0f172a);font-size:2rem;font-weight:600;margin:0 0 24px;padding-bottom:8px}.base64__faqList{display:flex;flex-direction:column;gap:16px}.base64__faqItem{background:hsla(0,0%,100%,.5);border:1px solid #e2e8f0;border-radius:12px;overflow:hidden}.base64__faqQ{font-weight:600;padding:16px}.base64__faqA{color:#475569;font-size:1.5rem;line-height:1.7;padding:0 16px 16px}.base64__faqA code{background:rgba(0,0,0,.3);border-radius:4px;font-size:1.4rem;padding:2px 6px}.base64__related{background:var(--color-bg-card,#fff);border:1px solid var(--color-border,#e2e8f0);border-radius:16px;margin-bottom:24px;margin-top:32px;padding:24px}.base64__relatedTitle{border-bottom:1px solid var(--color-border,#e2e8f0);color:var(--color-text-primary,#0f172a);font-size:2rem;font-weight:600;margin:0 0 24px;padding-bottom:8px}.base64__relatedGrid{display:grid;gap:16px;grid-template-columns:repeat(3,1fr)}@media(max-width:768px){.base64__relatedGrid{grid-template-columns:1fr}}.base64__relatedCard{align-items:center;background:hsla(0,0%,100%,.5);border:1px solid #e2e8f0;border-radius:12px;display:flex;flex-direction:column;padding:24px;text-align:center;text-decoration:none;transition:all .15s cubic-bezier(.22,1,.36,1)}.base64__relatedCard:hover{border-color:#06b6d4;transform:translateY(0)}.base64__relatedCard h3{color:#0f172a;font-size:1.6rem;font-weight:600;margin-bottom:4px}.base64__relatedCard p{color:#475569;font-size:1.5rem}.base64__relatedIcon{font-size:2rem;margin-bottom:8px}