:root{--primary-color:#2563eb;--primary-hover:#1d4ed8;--primary-active:#1e40af;--primary-glow:rgba(37,99,235,.15);--primary-gradient:linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);--primary-gradient-hover:linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);--accent-color:#0ea5e9;--bg-color:#fff;--card-bg:#fff;--card-border:#e2e8f0;--card-border-hover:#cbd5e1;--text-color:#0f172a;--text-secondary:#334155;--text-muted:#64748b;--text-light:#94a3b8;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--max-width:1200px;--radius-lg:12px;--radius-md:8px;--radius-sm:6px;--shadow-sm:0 1px 3px rgba(0,0,0,.05);--shadow-md:0 4px 16px -2px rgba(15,23,42,.06);--shadow-lg:0 10px 30px -4px rgba(37,99,235,.12);--transition:all .2s ease}*{box-sizing:border-box;margin:0;padding:0}[v-cloak]{display:none!important}body{color:var(--text-color);font-family:var(--font-sans);background-color:#fff;flex-direction:column;min-height:100vh;line-height:1.6;display:flex;overflow-x:hidden}.lang-nav-container{max-width:var(--max-width);z-index:100;width:100%;margin:0 auto;position:relative}.lang-nav{max-width:var(--max-width);border-bottom:1px solid var(--card-border);border-radius:0 0 var(--radius-md) var(--radius-md);background:rgba(255,255,255,.98);flex-wrap:wrap;gap:6px 12px;max-height:38px;margin:0 auto;padding:8px 12px;transition:max-height .25s,box-shadow .25s;display:flex;overflow:hidden}.lang-nav-container:hover .lang-nav,.lang-nav:hover{max-height:260px;box-shadow:var(--shadow-md);overflow-y:auto}.lang-nav a,.footer-lang-nav a{color:var(--text-muted);transition:var(--transition);border-radius:4px;padding:2px 6px;font-size:13px;font-weight:500;text-decoration:none}.lang-nav a:hover,.footer-lang-nav a:hover{color:var(--primary-color);background:rgba(37,99,235,.06)}.footer-lang-nav a{border:1px solid var(--card-border);background:#fff;padding:3px 8px;font-size:12px}.app-container{max-width:var(--max-width);flex-direction:column;flex:1;width:100%;margin:0 auto;padding:20px 16px;display:flex}.app-body{width:100%}.brand-section{justify-content:space-between;align-items:center;gap:24px;width:100%;margin-bottom:16px;display:flex}.brand-info{flex-direction:column;flex:1;align-items:flex-start;min-width:0;display:flex}.toolbox-badge-wrapper{margin-bottom:6px}.toolbox-badge{color:var(--primary-color);transition:var(--transition);background:rgba(37,99,235,.06);border:1px solid rgba(37,99,235,.18);border-radius:20px;align-items:center;gap:5px;padding:3px 10px;font-size:12px;font-weight:600;line-height:1;text-decoration:none;display:inline-flex}.toolbox-badge:hover{background:rgba(37,99,235,.12);transform:translateY(-1px)}.toolbox-badge svg{fill:currentColor;flex-shrink:0;width:12px;height:12px;display:block}.app-header{text-align:left}.app-title{color:var(--text-color);margin-bottom:4px;font-size:1.6rem;font-weight:700;line-height:1.25}.app-description{color:var(--text-muted);font-size:.95rem}.header-ad{border-radius:var(--radius-md);border:1px solid var(--card-border);background:#fff;flex-shrink:0;justify-content:center;align-items:center;width:728px;height:90px;display:flex;overflow:hidden}.tool-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;gap:16px;padding:20px;display:flex}.tool-settings-bar{border-bottom:1px solid var(--card-border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 20px;padding-bottom:14px;display:flex}.settings-left,.settings-right{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.setting-item{color:var(--text-color);cursor:pointer;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;align-items:center;gap:6px;font-size:14px;line-height:1;display:inline-flex}.setting-item input[type=checkbox]{cursor:pointer;accent-color:var(--primary-color);width:16px;height:16px;display:block}.prefix-input-group{color:var(--text-muted);align-items:center;gap:6px;font-size:13px;line-height:1;display:inline-flex}.subtle-input,.subtle-select{border:1px solid var(--card-border);border-radius:var(--radius-sm);color:var(--text-color);transition:var(--transition);background:#f8fafc;outline:none;padding:4px 8px;font-size:13px}.subtle-input{width:145px}.quality-input{width:75px}.subtle-select{cursor:pointer;padding-right:12px}.subtle-input:focus,.subtle-select:focus{border-color:var(--primary-color);box-shadow:0 0 0 2px var(--primary-glow);background:#fff}.paste-stage{border-radius:var(--radius-md);text-align:center;min-height:280px;transition:var(--transition);cursor:pointer;caret-color:transparent;background:#f8fafc;border:2px dashed #cbd5e1;outline:none;flex-direction:column;justify-content:center;align-items:center;padding:24px 16px;display:flex;position:relative}.paste-stage:hover,.paste-stage.is-dragover{border-color:var(--primary-color);background:rgba(37,99,235,.02)}.paste-stage.has-image{cursor:default;border-style:solid;border-color:var(--card-border);background:#fff;padding:16px}.empty-state{flex-direction:column;align-items:center;gap:12px;max-width:500px;display:flex}.paste-icon-wrap{width:64px;height:64px;color:var(--primary-color);transition:var(--transition);background:rgba(37,99,235,.08);border-radius:50%;justify-content:center;align-items:center;margin-bottom:4px;display:flex}.paste-stage:hover .paste-icon-wrap{background:rgba(37,99,235,.14)}.paste-icon-wrap svg{fill:currentColor;width:32px;height:32px}.empty-title{color:var(--text-color);font-size:1.15rem;font-weight:600}.empty-desc{color:var(--text-muted);font-size:13px;line-height:1.5}.keyboard-badge{color:#334155;background:#e2e8f0;border-bottom:2px solid #cbd5e1;border-radius:4px;padding:2px 6px;font-family:monospace;font-weight:600;display:inline-block}.preview-container{flex-direction:column;align-items:center;gap:16px;width:100%;display:flex}.image-wrapper{border-radius:var(--radius-md);border:1px solid var(--card-border);background-color:#fff;background-image:linear-gradient(45deg,#f1f5f9 25%,transparent 25%),linear-gradient(-45deg,#f1f5f9 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#f1f5f9 75%),linear-gradient(-45deg,transparent 75%,#f1f5f9 75%);background-position:0 0,0 8px,8px -8px,-8px 0;background-size:16px 16px;justify-content:center;align-items:center;width:100%;max-width:100%;max-height:520px;padding:12px;display:flex;overflow:auto}.preview-img{object-fit:contain;border-radius:4px;max-width:100%;height:auto;max-height:480px;box-shadow:0 2px 8px rgba(0,0,0,.08)}.image-meta-bar{color:var(--text-muted);border:1px solid var(--card-border);background:#f8fafc;border-radius:20px;flex-wrap:wrap;justify-content:center;align-items:center;gap:16px;padding:6px 16px;font-size:13px;display:flex}.meta-item strong{color:var(--text-color);font-weight:600}.action-toolbar{flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;margin-top:4px;display:flex}.btn{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;vertical-align:middle;border:1px solid transparent;justify-content:center;align-items:center;gap:6px;padding:8px 18px;font-size:14px;font-weight:600;line-height:1;text-decoration:none;display:inline-flex}.btn span{line-height:1;display:inline-block}.btn svg{fill:currentColor;flex-shrink:0;width:16px;height:16px;display:block}.btn-primary{background:var(--primary-gradient);color:#fff;box-shadow:0 2px 8px rgba(37,99,235,.25)}.btn-primary:hover{background:var(--primary-gradient-hover);transform:translateY(-1px);box-shadow:0 4px 12px rgba(37,99,235,.35)}.btn-secondary{color:var(--text-color);border-color:var(--card-border);background:#fff}.btn-secondary:hover{background:#f8fafc;border-color:#cbd5e1;transform:translateY(-1px)}.btn-paste{color:var(--primary-color);background:#fff;border:1px solid rgba(37,99,235,.3);box-shadow:0 1px 2px rgba(37,99,235,.05)}.btn-paste:hover{border-color:var(--primary-color);background:rgba(37,99,235,.06);transform:translateY(-1px);box-shadow:0 2px 5px rgba(37,99,235,.12)}.btn-outline-primary{color:var(--primary-color);background:#fff;border-color:rgba(37,99,235,.3)}.btn-outline-primary:hover{border-color:var(--primary-color);background:rgba(37,99,235,.05);transform:translateY(-1px)}.btn-sm{padding:6px 12px;font-size:13px}.btn-sm svg{width:14px;height:14px}.btn-icon{border-radius:var(--radius-sm);border:1px solid var(--card-border);width:28px;height:28px;color:var(--text-muted);cursor:pointer;transition:var(--transition);background:#f8fafc;outline:none;justify-content:center;align-items:center;padding:0;display:inline-flex}.btn-icon:hover{color:var(--primary-color);border-color:var(--primary-color);background:#fff;transform:rotate(-30deg)}.btn-icon svg{fill:currentColor;width:15px;height:15px}.dropdown-wrapper{display:inline-block;position:relative}.dropdown-arrow{fill:currentColor;width:14px;height:14px;margin-left:-2px;transition:transform .2s}.dropdown-wrapper:hover .dropdown-arrow{transform:rotate(180deg)}.dropdown-menu-list{border:1px solid var(--card-border);border-radius:var(--radius-md);min-width:130px;box-shadow:var(--shadow-md);z-index:1000;background:#fff;flex-direction:column;gap:2px;padding:4px;display:none;position:absolute;top:calc(100% + 4px);left:0}.dropdown-menu-list:before{content:"";width:100%;height:8px;position:absolute;top:-8px;left:0}.dropdown-wrapper:hover .dropdown-menu-list{display:flex}.dropdown-item{color:var(--text-color);border-radius:var(--radius-sm);cursor:pointer;text-align:left;transition:var(--transition);-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;padding:8px 12px;font-size:13px;font-weight:500}.dropdown-item:hover{color:var(--primary-color);background:rgba(37,99,235,.08)}.article-container{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;gap:32px;margin-top:16px;padding:32px 28px;display:flex}.feature-box{flex-direction:column;gap:16px;display:flex}.feature-box h2{color:var(--text-color);padding-left:12px;font-size:1.25rem;font-weight:700;line-height:1.4;position:relative}.feature-box h2:before{content:"";background:var(--primary-color);border-radius:2px;width:4px;position:absolute;top:4px;bottom:4px;left:0}.feature-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.feature-card{border:1px solid var(--card-border);border-radius:var(--radius-md);transition:var(--transition);background:#f8fafc;flex-direction:column;align-items:flex-start;gap:10px;padding:20px 16px;display:flex}.feature-card:hover{box-shadow:var(--shadow-md);background:#fff;border-color:rgba(37,99,235,.3);transform:translateY(-2px)}.feature-icon-wrap{border-radius:var(--radius-sm);width:40px;height:40px;color:var(--primary-color);transition:var(--transition);background:rgba(37,99,235,.08);flex-shrink:0;justify-content:center;align-items:center;display:flex}.feature-card:hover .feature-icon-wrap{background:rgba(37,99,235,.15)}.feature-icon-wrap svg{width:22px;height:22px;display:block}.feature-title{color:var(--text-color);font-size:15px;font-weight:700;line-height:1.3}.feature-desc{color:var(--text-muted);font-size:13px;line-height:1.6}@media (max-width:900px){.feature-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:600px){.feature-grid{grid-template-columns:1fr}}.article-section{flex-direction:column;gap:10px;display:flex}.article-section h2{color:var(--text-color);padding-left:12px;font-size:1.18rem;font-weight:700;line-height:1.4;position:relative}.article-section h2:before{content:"";background:var(--primary-color);border-radius:2px;width:4px;position:absolute;top:4px;bottom:4px;left:0}.article-text,.article-section p{color:#334155;font-size:14px;line-height:1.7}.article-list{color:#334155;flex-direction:column;gap:6px;padding-left:20px;font-size:14px;line-height:1.6;list-style:outside;display:flex}.article-list strong{color:var(--text-color)}.keyboard-inline{color:#0f172a;background:#f1f5f9;border:1px solid #cbd5e1;border-radius:4px;margin:0 2px;padding:1px 5px;font-family:monospace;font-size:12px;display:inline-block}.toast-msg{color:#fff;opacity:0;pointer-events:none;z-index:9999;background:#0f172a;border-radius:30px;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:500;transition:all .3s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;top:24px;left:50%;transform:translate(-50%)translateY(-20px);box-shadow:0 10px 25px -5px rgba(0,0,0,.3)}.toast-msg.show{opacity:1;transform:translate(-50%)translateY(0)}.app-footer{max-width:var(--max-width);border-top:1px solid var(--card-border);background:#fff;width:100%;margin:auto auto 0}.footer-content{max-width:var(--max-width);text-align:center;flex-direction:column;align-items:center;gap:12px;margin:0 auto;padding:16px;display:flex}.footer-lang-nav{flex-wrap:wrap;justify-content:center;gap:8px 10px;width:100%;display:flex}.footer-links{align-items:center;gap:16px;display:flex}.footer-link{color:var(--primary-color);font-size:13px;font-weight:500;text-decoration:none}.footer-link:hover{text-decoration:underline}.adblock-modal-overlay{-webkit-backdrop-filter:blur(8px);z-index:99999;background:rgba(15,23,42,.7);justify-content:center;align-items:center;padding:20px;animation:.2s ease-out fadeIn;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}.adblock-modal-card{background:var(--card-bg,#fff);border:1px solid var(--card-border,#e2e8f0);text-align:center;border-radius:16px;flex-direction:column;gap:16px;width:100%;max-width:480px;padding:28px 24px;display:flex;position:relative;box-shadow:0 20px 48px rgba(0,0,0,.25)}.adblock-close-btn{width:32px;height:32px;color:var(--text-muted,#64748b);cursor:pointer;transition:var(--transition,.2s ease);background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:18px;display:flex;position:absolute;top:14px;right:14px}.adblock-close-btn:hover{color:var(--text-color,#0f172a);background:#f1f5f9}.adblock-modal-header{flex-direction:column;align-items:center;gap:8px;display:flex}.adblock-warning-badge{font-size:36px;line-height:1}.adblock-title{color:var(--text-color,#0f172a);margin:0;font-size:19px;font-weight:800}.adblock-body{text-align:left;flex-direction:column;gap:10px;display:flex}.adblock-desc{color:#334155;margin:0;font-size:14px;line-height:1.5}.adblock-steps-box{border:1px solid var(--card-border,#e2e8f0);background:#f8fafc;border-radius:10px;margin-top:4px;padding:14px 16px}.steps-title{color:var(--primary-color,#2563eb);margin-bottom:8px;font-size:13px;font-weight:700}.steps-list{color:var(--text-muted,#475569);margin:0;padding-left:18px;font-size:12px;line-height:1.7}.adblock-footer{margin-top:6px;display:flex}.btn-retry-ad{cursor:pointer;border-radius:8px;width:100%;padding:11px 20px;font-size:14px;font-weight:700}.steps-flow{grid-template-columns:repeat(3,1fr);gap:14px;margin:6px 0 10px;display:grid}.step-item{border:1px solid var(--card-border);border-radius:var(--radius-md);transition:var(--transition);background:#f8fafc;align-items:flex-start;gap:12px;padding:14px;display:flex}.step-item:hover{box-shadow:var(--shadow-sm);background:#fff;border-color:rgba(37,99,235,.3);transform:translateY(-1px)}.step-num{background:var(--primary-color);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:13px;font-weight:700;line-height:1;display:inline-flex;box-shadow:0 2px 5px rgba(37,99,235,.25)}.step-content{flex-direction:column;gap:4px;display:flex}.step-content strong{color:var(--text-color);font-size:14px;line-height:1.3}.step-content span{color:var(--text-muted);font-size:12.5px;line-height:1.5}@media (max-width:1024px){.brand-section{flex-direction:column;align-items:flex-start;gap:16px}}@media (max-width:768px){.app-title{font-size:1.35rem}.header-ad{display:none}.tool-settings-bar{flex-direction:column;align-items:flex-start}.steps-flow{grid-template-columns:1fr;gap:10px}.action-toolbar{flex-direction:column;width:100%}.action-toolbar .btn{width:100%}}