:root{--font-sans:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-heading:'Outfit',sans-serif;--bg-base:#090d16;--bg-surface:#0f172a;--bg-surface-elevated:#1e293b;--bg-card:#131d33;--bg-card-hover:#1a2744;--border-subtle:rgba(255,255,255,0.08);--border-focus:rgba(56,189,248,0.5);--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--primary:#0284c7;--primary-hover:#0369a1;--primary-glow:rgba(2,132,199,0.25);--accent-cyan:#38bdf8;--accent-emerald:#10b981;--accent-amber:#f59e0b;--accent-rose:#ef4444;--radius-sm:6px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 2px 8px rgba(0,0,0,0.2);--shadow-md:0 8px 24px rgba(0,0,0,0.35);--shadow-glow:0 0 30px rgba(56,189,248,0.15);--transition:all 0.25s cubic-bezier(0.16,1,0.3,1)}
.theme-light{--bg-base:#f8fafc;--bg-surface:#ffffff;--bg-surface-elevated:#f1f5f9;--bg-card:#ffffff;--bg-card-hover:#f8fafc;--border-subtle:rgba(15,23,42,0.08);--border-focus:rgba(2,132,199,0.5);--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--primary:#0284c7;--primary-hover:#0369a1;--primary-glow:rgba(2,132,199,0.15);--shadow-sm:0 2px 8px rgba(15,23,42,0.06);--shadow-md:0 8px 24px rgba(15,23,42,0.08);--shadow-glow:0 0 25px rgba(2,132,199,0.08)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-family:var(--font-sans);font-size:16px;line-height:1.6;color:var(--text-primary);background-color:var(--bg-base);scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden}
body{min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden;background-color:var(--bg-base);color:var(--text-primary);transition:background-color 0.3s ease,color 0.3s ease}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
img,video,svg{display:block;max-width:100%}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.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}
.site-header{position:sticky;top:0;z-index:100;background:rgba(15,23,42,0.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border-subtle);transition:var(--transition)}
.theme-light .site-header{background:rgba(255,255,255,0.9)}
.nav-container{display:flex;align-items:center;justify-content:space-between;max-width:1240px;margin:0 auto;padding:12px 20px;height:70px}
.site-logo{display:flex;align-items:center;gap:10px;font-family:var(--font-heading);font-weight:700;font-size:1.35rem;color:var(--text-primary)}
.logo-icon{width:36px;height:36px;flex-shrink:0;border-radius:8px;box-shadow:var(--shadow-sm)}
.logo-text span{color:var(--accent-cyan)}
.theme-light .logo-text span{color:var(--primary)}
.main-nav{display:flex;align-items:center}
.nav-list{display:flex;align-items:center;gap:8px;list-style:none}
.nav-item{position:relative}
.nav-link,.dropdown-toggle{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;font-size:0.92rem;font-weight:500;color:var(--text-secondary);border-radius:var(--radius-sm);transition:var(--transition)}
.nav-link:hover,.dropdown-toggle:hover{color:var(--text-primary);background:var(--border-subtle)}
.chevron-icon{width:16px;height:16px;transition:transform 0.2s ease}
.dropdown:hover .chevron-icon,.dropdown.is-open .chevron-icon{transform:rotate(180deg)}
.dropdown-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);box-shadow:var(--shadow-md);opacity:0;visibility:hidden;pointer-events:none;transition:all 0.2s ease;z-index:110}
.dropdown:hover .dropdown-menu,.dropdown.is-open .dropdown-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.mega-menu{width:880px;max-width:92vw;padding:20px}
.mega-menu-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.mega-column{display:flex;flex-direction:column;gap:6px}
.mega-title{font-size:0.78rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--accent-cyan);padding-bottom:6px;border-bottom:1px solid var(--border-subtle);margin-bottom:4px}
.theme-light .mega-title{color:var(--primary)}
.mega-link{padding:6px 8px;font-size:0.83rem;color:var(--text-secondary);border-radius:var(--radius-sm);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mega-link:hover,.mega-link.active-link{color:var(--text-primary);background:var(--primary-glow)}
.mega-link.active-link{color:var(--accent-cyan);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px}
.theme-toggle-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-md);border:1px solid var(--border-subtle);background:var(--bg-surface-elevated);color:var(--text-secondary);transition:var(--transition)}
.theme-toggle-btn:hover{color:var(--accent-cyan);border-color:var(--accent-cyan)}
.theme-icon{width:20px;height:20px}
.sun-icon{display:none}
.moon-icon{display:block}
.theme-light .sun-icon{display:block}
.theme-light .moon-icon{display:none}
.mobile-menu-btn{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:40px;height:40px;border-radius:var(--radius-md);border:1px solid var(--border-subtle);background:var(--bg-surface-elevated);padding:8px}
.hamburger-bar{width:20px;height:2px;background:var(--text-primary);border-radius:2px;transition:var(--transition)}
.breadcrumb-nav{padding:14px 0;background:rgba(0,0,0,0.15);border-bottom:1px solid var(--border-subtle)}
.theme-light .breadcrumb-nav{background:rgba(241,245,249,0.7)}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-size:0.85rem;color:var(--text-muted)}
.breadcrumb-item a{color:var(--text-secondary)}
.breadcrumb-item a:hover{color:var(--accent-cyan)}
.breadcrumb-item.active{color:var(--accent-cyan);font-weight:600}
.breadcrumb-separator{color:var(--text-muted);user-select:none}
.hero-section{padding:48px 0 36px;background:radial-gradient(ellipse at 50% -20%,rgba(2,132,199,0.18) 0%,rgba(9,13,22,0) 70%);text-align:center}
.theme-light .hero-section{background:radial-gradient(ellipse at 50% -20%,rgba(2,132,199,0.1) 0%,rgba(248,250,252,0) 70%)}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:50px;font-size:0.82rem;font-weight:600;color:var(--accent-cyan);margin-bottom:20px;box-shadow:var(--shadow-sm)}
.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-emerald);box-shadow:0 0 10px var(--accent-emerald);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(0.85)}}
.hero-title{font-family:var(--font-heading);font-size:clamp(2rem,4vw,3.1rem);font-weight:800;letter-spacing:-0.03em;line-height:1.15;color:var(--text-primary);margin-bottom:14px}
.hero-subtitle{max-width:760px;margin:0 auto 36px;font-size:clamp(0.98rem,1.8vw,1.12rem);color:var(--text-secondary);line-height:1.6}
.app-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:24px;box-shadow:var(--shadow-md),var(--shadow-glow);text-align:left;position:relative}
.app-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--border-subtle);margin-bottom:20px}
.app-header-left{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.app-badge{display:inline-flex;align-items:center;gap:6px;font-size:0.82rem;font-weight:700;color:var(--text-primary);background:var(--bg-surface-elevated);padding:4px 10px;border-radius:var(--radius-sm);border:1px solid var(--border-subtle)}
.privacy-tag{display:inline-flex;align-items:center;gap:5px;font-size:0.78rem;font-weight:600;color:var(--accent-emerald)}
.app-select{background:var(--bg-surface-elevated);color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);padding:6px 12px;font-size:0.84rem;font-weight:500;outline:none;transition:var(--transition);cursor:pointer}
.app-select:focus{border-color:var(--accent-cyan)}
.dropzone{border:2px dashed rgba(56,189,248,0.35);background:rgba(15,23,42,0.5);border-radius:var(--radius-lg);padding:44px 20px;text-align:center;cursor:pointer;transition:var(--transition);outline:none}
.theme-light .dropzone{background:rgba(241,245,249,0.6)}
.dropzone:hover,.dropzone.dragover{border-color:var(--accent-cyan);background:var(--primary-glow);box-shadow:0 0 20px var(--primary-glow)}
.file-input-hidden{display:none}
.upload-icon-wrapper{position:relative;width:72px;height:72px;margin:0 auto 16px;display:flex;align-items:center;justify-content:center;background:var(--bg-surface-elevated);border-radius:50%;border:1px solid var(--border-subtle);color:var(--accent-cyan)}
.upload-icon{width:36px;height:36px}
.dropzone-title{font-family:var(--font-heading);font-size:1.4rem;font-weight:700;color:var(--text-primary);margin-bottom:6px}
.dropzone-sub{font-size:0.95rem;color:var(--text-secondary);margin-bottom:16px}
.btn-browse{color:var(--accent-cyan);font-weight:600;text-decoration:underline;text-underline-offset:3px}
.dropzone-chips{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.chip{padding:3px 10px;font-size:0.75rem;font-weight:700;background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:50px;color:var(--text-secondary)}
.dropzone-limits{font-size:0.82rem;color:var(--text-muted);margin-bottom:14px}
.btn-sample{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;font-size:0.82rem;font-weight:600;background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:50px;color:var(--text-primary);transition:var(--transition)}
.btn-sample:hover{border-color:var(--accent-cyan);color:var(--accent-cyan);background:var(--primary-glow)}
.error-banner{display:flex;align-items:center;gap:12px;padding:12px 16px;background:rgba(239,68,68,0.15);border:1px solid rgba(239,68,68,0.4);border-radius:var(--radius-md);color:#fca5a5;font-size:0.88rem;margin-top:16px}
.theme-light .error-banner{background:#fee2e2;color:#b91c1c;border-color:#f87171}
.btn-close-error{margin-left:auto;font-size:1.2rem;color:inherit;opacity:0.7}
.btn-close-error:hover{opacity:1}
.workspace-panel{margin-top:20px;animation:fadeIn 0.3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.video-preview-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}
.preview-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);overflow:hidden;display:flex;flex-direction:column}
.preview-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-surface-elevated);border-bottom:1px solid var(--border-subtle);font-size:0.88rem;font-weight:600}
.preview-title{display:flex;align-items:center;gap:8px}
.status-indicator{width:8px;height:8px;border-radius:50%}
.status-indicator.has-audio{background:var(--accent-amber);box-shadow:0 0 6px var(--accent-amber)}
.status-indicator.muted-audio{background:var(--accent-emerald);box-shadow:0 0 6px var(--accent-emerald)}
.badge-tag{font-size:0.72rem;font-weight:700;padding:2px 8px;border-radius:4px;background:var(--border-subtle);color:var(--text-secondary)}
.badge-success{background:rgba(16,185,129,0.2);color:var(--accent-emerald);border:1px solid rgba(16,185,129,0.3)}
.video-container{position:relative;background:#000;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;overflow:hidden}
.video-container video{width:100%;height:100%;object-fit:contain}
.placeholder-muted{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;text-align:center;color:var(--text-muted);gap:10px;background:rgba(15,23,42,0.92)}
.placeholder-muted svg{color:var(--text-muted);opacity:0.6}
.placeholder-muted p{font-size:0.85rem;max-width:260px}
.processing-overlay{position:absolute;inset:0;background:rgba(15,23,42,0.95);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;z-index:20;padding:20px;text-align:center}
.spinner{width:38px;height:38px;border:3px solid rgba(56,189,248,0.2);border-top-color:var(--accent-cyan);border-radius:50%;animation:spin 0.8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.proc-text{font-size:0.9rem;font-weight:600;color:var(--text-primary)}
.progress-track{width:80%;max-width:240px;height:6px;background:rgba(255,255,255,0.1);border-radius:3px;overflow:hidden}
.progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--primary),var(--accent-cyan));transition:width 0.15s ease}
.proc-percent{font-size:0.8rem;font-weight:700;color:var(--accent-cyan)}
.audio-analyser-bar{padding:10px 16px;background:var(--bg-surface-elevated);border-top:1px solid var(--border-subtle);display:flex;flex-direction:column;gap:6px}
.analyser-label{display:flex;align-items:center;justify-content:space-between;font-size:0.75rem;font-weight:600;color:var(--text-muted)}
.audio-detect-state{color:var(--accent-amber)}
.audio-muted-confirmed{display:inline-flex;align-items:center;gap:4px;color:var(--accent-emerald);font-weight:700}
.waveform-canvas{width:100%;height:32px;background:rgba(0,0,0,0.3);border-radius:var(--radius-sm)}
.flatline-waveform{width:100%;height:32px;background:rgba(0,0,0,0.3);border-radius:var(--radius-sm);position:relative}
.flatline-waveform::after{content:'';position:absolute;top:50%;left:5%;right:5%;height:2px;background:var(--accent-emerald);opacity:0.6;border-radius:1px}
.controls-toolbar{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:18px 20px;margin-bottom:20px}
.options-row{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-bottom:14px}
.custom-checkbox{display:inline-flex;align-items:center;gap:8px;font-size:0.86rem;font-weight:500;color:var(--text-secondary);cursor:pointer;user-select:none}
.custom-checkbox input{display:none}
.checkmark{width:18px;height:18px;border-radius:4px;border:1px solid var(--border-subtle);background:var(--bg-surface-elevated);display:inline-flex;align-items:center;justify-content:center;transition:var(--transition)}
.custom-checkbox input:checked + .checkmark{background:var(--primary);border-color:var(--primary)}
.custom-checkbox input:checked + .checkmark::after{content:'✓';color:#fff;font-size:12px;font-weight:bold}
.trim-container{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:14px;margin-bottom:16px}
.trim-row{display:grid;grid-template-columns:120px 1fr 120px;gap:14px;align-items:center}
.trim-input-col{display:flex;flex-direction:column;gap:4px;font-size:0.78rem;font-weight:600;color:var(--text-muted)}
.input-num{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);padding:6px 10px;font-size:0.85rem;color:var(--text-primary);outline:none}
.input-num:focus{border-color:var(--accent-cyan)}
.app-range{width:100%;accent-color:var(--accent-cyan);cursor:pointer}
.action-buttons-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:var(--radius-md);font-size:0.92rem;font-weight:600;transition:var(--transition);cursor:pointer;white-space:nowrap}
.btn:disabled{opacity:0.45;cursor:not-allowed;pointer-events:none}
.btn-primary{background:linear-gradient(135deg,#0284c7,#2563eb);color:#ffffff;box-shadow:0 4px 14px rgba(2,132,199,0.35)}
.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px rgba(2,132,199,0.5)}
.btn-success{background:linear-gradient(135deg,#059669,#10b981);color:#ffffff;box-shadow:0 4px 14px rgba(16,185,129,0.35)}
.btn-success:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px rgba(16,185,129,0.5)}
.btn-outline{border:1px solid var(--border-subtle);background:var(--bg-surface-elevated);color:var(--text-primary)}
.btn-outline:hover:not(:disabled){border-color:var(--accent-cyan);color:var(--accent-cyan)}
.btn-ghost{background:transparent;color:var(--text-muted);border:1px solid transparent}
.btn-ghost:hover{color:var(--accent-rose);background:rgba(239,68,68,0.1)}
.metadata-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.meta-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:10px 14px;display:flex;flex-direction:column;gap:4px}
.meta-label{font-size:0.72rem;font-weight:600;text-transform:uppercase;letter-spacing:0.04em;color:var(--text-muted)}
.meta-val{font-size:0.92rem;font-weight:700;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.highlight-warn{color:var(--accent-amber)}
.highlight-green{color:var(--accent-emerald)}
.tools-quick-section{width:100%;padding:36px 0;background:rgba(0,0,0,0.2);border-top:1px solid var(--border-subtle);border-bottom:1px solid var(--border-subtle);box-sizing:border-box}
.theme-light .tools-quick-section{background:rgba(241,245,249,0.5)}
.section-header-compact{text-align:center;margin-bottom:24px}
.section-title-sm{font-family:var(--font-heading);font-size:1.4rem;font-weight:700;color:var(--text-primary);margin-bottom:4px}
.section-subtitle-sm{font-size:0.88rem;color:var(--text-secondary)}
.quick-tools-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;width:100%;box-sizing:border-box}
.quick-tool-card{display:flex;align-items:center;gap:12px;padding:12px 14px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:var(--transition);min-width:0;width:100%;box-sizing:border-box}
.quick-tool-card:hover{transform:translateY(-2px);border-color:var(--accent-cyan);background:var(--bg-card-hover);box-shadow:var(--shadow-sm)}
.tool-icon-circle{width:38px;height:38px;border-radius:50%;background:var(--primary-glow);color:var(--accent-cyan);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.theme-light .tool-icon-circle{color:var(--primary)}
.quick-tool-info{min-width:0;flex:1;overflow:hidden}
.quick-tool-info h3{font-size:0.86rem;font-weight:700;color:var(--text-primary);margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.quick-tool-info p{font-size:0.75rem;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.features-section,.how-it-works-section,.seo-content-section,.faq-section,.cta-section{padding:54px 0}
.section-header{text-align:center;max-width:760px;margin:0 auto 40px}
.section-title{font-family:var(--font-heading);font-size:clamp(1.7rem,3vw,2.3rem);font-weight:800;letter-spacing:-0.02em;color:var(--text-primary);margin-bottom:10px}
.section-subtitle{font-size:0.98rem;color:var(--text-secondary)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:26px 22px;transition:var(--transition);display:flex;flex-direction:column;gap:12px}
.feature-card:hover{transform:translateY(-3px);border-color:var(--border-focus);box-shadow:var(--shadow-sm)}
.feature-icon{width:50px;height:50px;border-radius:var(--radius-md);background:var(--primary-glow);color:var(--accent-cyan);display:flex;align-items:center;justify-content:center}
.theme-light .feature-icon{color:var(--primary)}
.feature-title{font-family:var(--font-heading);font-size:1.15rem;font-weight:700;color:var(--text-primary)}
.feature-desc{font-size:0.88rem;color:var(--text-secondary);line-height:1.55}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:28px 24px;position:relative;display:flex;flex-direction:column;gap:14px;transition:var(--transition)}
.step-card:hover{border-color:var(--accent-cyan);transform:translateY(-2px)}
.step-number{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--primary),#2563eb);color:#fff;font-family:var(--font-heading);font-size:1.2rem;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(2,132,199,0.4)}
.step-title{font-family:var(--font-heading);font-size:1.15rem;font-weight:700;color:var(--text-primary)}
.step-desc{font-size:0.88rem;color:var(--text-secondary);line-height:1.55}
.seo-article-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:36px;box-shadow:var(--shadow-sm)}
.article-header{margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border-subtle)}
.article-title{font-family:var(--font-heading);font-size:1.6rem;font-weight:800;color:var(--text-primary);margin-bottom:8px}
.article-meta{display:flex;align-items:center;gap:10px;font-size:0.82rem;font-weight:600;color:var(--accent-cyan)}
.article-meta span{display:inline-flex;align-items:center;gap:5px}
.article-body{display:flex;flex-direction:column;gap:16px;font-size:0.95rem;line-height:1.75;color:var(--text-secondary)}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:0.85em;background:var(--bg-surface-elevated);color:var(--accent-cyan);padding:2px 6px;border-radius:4px;border:1px solid var(--border-subtle)}
.faq-accordion{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition)}
.faq-item[open]{border-color:var(--border-focus);box-shadow:var(--shadow-sm)}
.faq-question{padding:18px 20px;font-size:0.98rem;font-weight:700;color:var(--text-primary);display:flex;align-items:center;justify-content:space-between;cursor:pointer;list-style:none}
.faq-question::-webkit-details-marker{display:none}
.faq-icon{width:20px;height:20px;color:var(--text-muted);transition:transform 0.25s ease;flex-shrink:0}
.faq-item[open] .faq-icon{transform:rotate(180deg);color:var(--accent-cyan)}
.faq-answer{padding:0 20px 18px;font-size:0.9rem;color:var(--text-secondary);line-height:1.65}
.cta-card{background:linear-gradient(135deg,rgba(2,132,199,0.15) 0%,rgba(37,99,235,0.08) 100%),var(--bg-card);border:1px solid rgba(56,189,248,0.3);border-radius:var(--radius-xl);padding:44px 32px;text-align:center;box-shadow:var(--shadow-glow)}
.cta-content{max-width:680px;margin:0 auto}
.cta-title{font-family:var(--font-heading);font-size:clamp(1.6rem,2.8vw,2.2rem);font-weight:800;color:var(--text-primary);margin-bottom:12px}
.cta-desc{font-size:0.98rem;color:var(--text-secondary);margin-bottom:26px;line-height:1.6}
.cta-buttons{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
.btn-primary-cta{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;background:linear-gradient(135deg,#0284c7,#2563eb);color:#fff;border-radius:var(--radius-md);font-weight:700;font-size:1rem;box-shadow:0 6px 20px rgba(2,132,199,0.4);transition:var(--transition)}
.btn-primary-cta:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(2,132,199,0.6)}
.btn-secondary-cta{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;background:var(--bg-surface-elevated);color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);font-weight:700;font-size:1rem;transition:var(--transition)}
.btn-secondary-cta:hover{border-color:var(--accent-cyan);color:var(--accent-cyan);transform:translateY(-2px)}
.site-footer{background:var(--bg-surface);border-top:1px solid var(--border-subtle);padding:50px 0 24px}
.footer-top-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
.brand-col{display:flex;flex-direction:column;gap:14px}
.footer-tagline{font-size:0.86rem;color:var(--text-secondary);line-height:1.6}
.footer-badge-list{display:flex;flex-wrap:wrap;gap:8px}
.footer-chip{padding:4px 10px;font-size:0.75rem;font-weight:600;background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:50px;color:var(--text-secondary)}
.footer-heading{font-family:var(--font-heading);font-size:0.92rem;font-weight:700;text-transform:uppercase;letter-spacing:0.04em;color:var(--text-primary);margin-bottom:14px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:8px}
.footer-links a{font-size:0.84rem;color:var(--text-secondary)}
.footer-links a:hover{color:var(--accent-cyan);transform:translateX(2px)}
.footer-disclaimer-box{padding:16px 20px;background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);margin-bottom:28px}
.trademark-disclaimer{font-size:0.75rem;color:var(--text-muted);line-height:1.5}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-top:20px;border-top:1px solid var(--border-subtle);font-size:0.82rem;color:var(--text-muted)}
.footer-bottom-links{display:flex;align-items:center;gap:10px}
.footer-bottom-links a{color:var(--text-secondary)}
.footer-bottom-links a:hover{color:var(--accent-cyan)}
.cookie-banner{position:fixed;bottom:20px;left:20px;right:20px;max-width:580px;background:var(--bg-card);border:1px solid var(--border-focus);border-radius:var(--radius-lg);padding:18px 20px;box-shadow:var(--shadow-md);z-index:999;animation:slideUp 0.35s ease}
@keyframes slideUp{from{transform:translateY(100px);opacity:0}to{transform:translateY(0);opacity:1}}
.cookie-content{display:flex;gap:14px;align-items:flex-start}
.cookie-icon{color:var(--accent-cyan);flex-shrink:0;margin-top:2px}
.cookie-text{flex:1}
.cookie-title{font-family:var(--font-heading);font-size:0.95rem;font-weight:700;color:var(--text-primary);margin-bottom:4px}
.cookie-desc{font-size:0.82rem;color:var(--text-secondary);line-height:1.45}
.cookie-desc a{color:var(--accent-cyan);text-decoration:underline}
.cookie-actions{display:flex;gap:8px;margin-top:10px}
.btn-cookie-accept{padding:6px 14px;background:var(--primary);color:#fff;border-radius:var(--radius-sm);font-size:0.82rem;font-weight:700;transition:var(--transition)}
.btn-cookie-accept:hover{background:var(--primary-hover)}
.btn-cookie-dismiss{padding:6px 12px;background:var(--bg-surface-elevated);color:var(--text-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);font-size:0.82rem;font-weight:600;transition:var(--transition)}
.btn-cookie-dismiss:hover{color:var(--text-primary);border-color:var(--text-muted)}
.toast-container{position:fixed;bottom:24px;right:24px;z-index:1000;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{padding:12px 18px;border-radius:var(--radius-md);background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);color:var(--text-primary);font-size:0.86rem;font-weight:600;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:10px;pointer-events:auto;animation:toastIn 0.3s ease,toastOut 0.3s ease 2.7s forwards}
@keyframes toastIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes toastOut{from{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(16px)}}
.toast-success{border-color:rgba(16,185,129,0.5);border-left:4px solid var(--accent-emerald)}
.toast-info{border-color:rgba(56,189,248,0.5);border-left:4px solid var(--accent-cyan)}
.toast-error{border-color:rgba(239,68,68,0.5);border-left:4px solid var(--accent-rose)}
@media (max-width:1200px){.quick-tools-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:1024px){.features-grid,.steps-grid{grid-template-columns:repeat(2,1fr)}.quick-tools-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.metadata-grid{grid-template-columns:repeat(3,1fr)}.footer-top-grid{grid-template-columns:1fr 1fr;gap:24px}.mega-menu{width:700px}.mega-menu-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:768px){.mobile-menu-btn{display:flex}.main-nav{position:fixed;top:70px;left:0;right:0;bottom:0;background:var(--bg-surface);padding:20px;transform:translateX(-100%);transition:transform 0.3s ease;overflow-y:auto;border-bottom:1px solid var(--border-subtle)}.main-nav.is-open{transform:translateX(0)}.nav-list{flex-direction:column;align-items:stretch;gap:10px}.nav-link,.dropdown-toggle{justify-content:space-between;padding:12px 14px;font-size:1rem;background:var(--bg-surface-elevated)}.dropdown-menu{position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;box-shadow:none;border:none;padding:10px 0;width:100%;max-width:100%;display:none}.dropdown.is-open .dropdown-menu{display:block}.mega-menu-grid{grid-template-columns:1fr;gap:14px}.video-preview-grid{grid-template-columns:1fr}.trim-row{grid-template-columns:1fr}.features-grid,.steps-grid{grid-template-columns:1fr}.quick-tools-grid{grid-template-columns:1fr}.metadata-grid{grid-template-columns:repeat(2,1fr)}.footer-top-grid{grid-template-columns:1fr}.action-buttons-row{flex-direction:column;width:100%}.action-buttons-row .btn{width:100%}.cookie-banner{left:10px;right:10px;bottom:10px}}