:root {
  --bg: #f5f6fb;
  --surface: rgba(255,255,255,0.72);
  --surface-solid: #ffffff;
  --border: rgba(15,23,42,0.08);
  --text: #0f172a;
  --text-muted: #64748b;
  --primary: #6366f1;
  --primary-2: #8b5cf6;
  --accent: #06b6d4;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 16px;
  --shadow-sm: 0 2px 8px rgba(15,23,42,0.06);
  --shadow-md: 0 8px 24px rgba(15,23,42,0.08);
  --shadow-lg: 0 24px 60px -20px rgba(99,102,241,0.35);
  --grad: linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#06b6d4 100%);
  --ease: cubic-bezier(0.22,1,0.36,1);
}
[data-theme="dark"] {
  --bg: #0b0f1a;
  --surface: rgba(20,26,42,0.72);
  --surface-solid: #131a2b;
  --border: rgba(255,255,255,0.08);
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 24px 60px -20px rgba(99,102,241,0.5);
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;transition:background .4s var(--ease),color .4s var(--ease);}
.bg-orb{position:fixed;border-radius:50%;filter:blur(80px);opacity:.35;pointer-events:none;z-index:0;animation:float 20s var(--ease) infinite;}
.orb-1{width:500px;height:500px;background:#6366f1;top:-150px;left:-100px;}
.orb-2{width:400px;height:400px;background:#06b6d4;bottom:-120px;right:-80px;animation-delay:-7s;}
.orb-3{width:350px;height:350px;background:#8b5cf6;top:40%;right:30%;animation-delay:-14s;opacity:.2;}
@keyframes float{0%,100%{transform:translate(0,0) scale(1);}33%{transform:translate(40px,-40px) scale(1.1);}66%{transform:translate(-30px,30px) scale(.95);}}
.topbar{position:relative;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:16px 28px;backdrop-filter:blur(14px);background:var(--surface);border-bottom:1px solid var(--border);}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;color:inherit;}
.logo{width:44px;height:44px;border-radius:12px;background:var(--grad);color:white;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);animation:pulse 4s var(--ease) infinite;flex-shrink:0;}
@keyframes pulse{0%,100%{transform:scale(1);}50%{transform:scale(1.06);}}
.brand-text h1{margin:0;font-size:20px;font-weight:800;letter-spacing:-.02em;}
.brand-text .tag{margin:2px 0 0;font-size:12px;color:var(--text-muted);}
.topbar-right{display:flex;align-items:center;gap:20px;}
.top-nav{display:flex;gap:4px;align-items:center;}
.top-nav a{color:var(--text-muted);text-decoration:none;font-size:14px;font-weight:500;padding:7px 12px;border-radius:8px;transition:all .2s var(--ease);}
.top-nav a:hover{color:var(--primary);background:rgba(99,102,241,.07);}
.top-nav a.active{color:var(--primary);font-weight:600;}
.theme-toggle{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--surface-solid);color:var(--text);border:1px solid var(--border);cursor:pointer;transition:all .3s var(--ease);}
.theme-toggle:hover{transform:rotate(15deg) scale(1.05);box-shadow:var(--shadow-md);}
.theme-toggle .moon{display:none;}
[data-theme="dark"] .theme-toggle .sun{display:none;}
[data-theme="dark"] .theme-toggle .moon{display:block;}
.layout{position:relative;z-index:1;display:grid;grid-template-columns:260px 1fr;gap:24px;padding:24px;max-width:1400px;margin:0 auto;}
@media(max-width:900px){.layout{grid-template-columns:1fr;padding:16px;}}
.sidebar{background:var(--surface);backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:var(--radius);padding:14px;height:fit-content;position:sticky;top:24px;box-shadow:var(--shadow-sm);animation:slideIn .5s var(--ease);}
@keyframes slideIn{from{opacity:0;transform:translateX(-20px);}to{opacity:1;transform:translateX(0);}}
.sidebar-section-label{font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);padding:10px 14px 4px;margin:0;}
.tool-nav{display:flex;flex-direction:column;gap:4px;}
a.tool-btn,button.tool-btn{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;background:transparent;border:none;color:var(--text);cursor:pointer;font-size:14px;font-weight:500;text-align:left;text-decoration:none;transition:all .25s var(--ease);position:relative;overflow:hidden;font-family:inherit;}
a.tool-btn svg,button.tool-btn svg{width:18px;height:18px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .3s var(--ease);}
a.tool-btn:hover,button.tool-btn:hover{background:rgba(99,102,241,.08);transform:translateX(4px);}
a.tool-btn:hover svg,button.tool-btn:hover svg{transform:scale(1.15) rotate(-5deg);}
a.tool-btn.active,button.tool-btn.active{background:var(--grad);color:white;box-shadow:var(--shadow-lg);transform:translateX(0);}
a.tool-btn.active:hover,button.tool-btn.active:hover{transform:translateX(0);}
.content{min-height:calc(100vh - 120px);}
.panel{background:var(--surface);backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow-md);animation:panelIn .4s var(--ease);}
@keyframes panelIn{from{opacity:0;transform:translateY(12px) scale(.98);}to{opacity:1;transform:translateY(0) scale(1);}}
.panel-head{margin-bottom:24px;}
.panel-head h2{margin:0 0 6px;font-size:26px;font-weight:800;letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.panel-head p{margin:0;color:var(--text-muted);font-size:14px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px;}
.field-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;}
input[type="text"],input[type="number"],input[type="color"],input[type="email"],input[type="password"],select,textarea{width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:10px;background:var(--surface-solid);color:var(--text);font-family:inherit;font-size:14px;transition:all .2s var(--ease);}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(99,102,241,.12);}
input[type="color"]{padding:4px;height:44px;cursor:pointer;}
textarea{min-height:140px;resize:vertical;}
.dropzone{display:block;border:2px dashed var(--border);border-radius:14px;padding:40px 24px;text-align:center;cursor:pointer;background:rgba(99,102,241,.03);transition:all .3s var(--ease);position:relative;overflow:hidden;}
.dropzone::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:0;transition:opacity .3s var(--ease);z-index:0;}
.dropzone:hover,.dropzone.dragover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.dropzone.dragover::before{opacity:.06;}
.dropzone-icon{width:60px;height:60px;margin:0 auto 12px;border-radius:14px;background:var(--grad);color:white;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);animation:bounce 2.5s var(--ease) infinite;position:relative;z-index:1;}
@keyframes bounce{0%,100%{transform:translateY(0);}50%{transform:translateY(-6px);}}
.dropzone-icon svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.dropzone p{margin:6px 0 4px;font-weight:600;position:relative;z-index:1;}
.dropzone .hint{color:var(--text-muted);font-size:13px;font-weight:400;}
.dropzone input{display:none;}
.file-list{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.file-item{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:10px;background:var(--surface-solid);border:1px solid var(--border);animation:fileIn .3s var(--ease);}
@keyframes fileIn{from{opacity:0;transform:translateX(-8px);}to{opacity:1;transform:translateX(0);}}
.file-item .file-icon{width:32px;height:32px;border-radius:8px;background:rgba(99,102,241,.12);color:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.file-item .file-icon svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;}
.file-item .file-name{flex:1;min-width:0;font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.file-item .file-size{font-size:12px;color:var(--text-muted);}
.file-item .file-remove{border:none;background:transparent;color:var(--text-muted);cursor:pointer;padding:6px;border-radius:6px;transition:all .2s var(--ease);}
.file-item .file-remove:hover{background:rgba(239,68,68,.1);color:var(--danger);}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:12px;font-family:inherit;font-size:14px;font-weight:600;border:none;cursor:pointer;text-decoration:none;transition:all .25s var(--ease);position:relative;overflow:hidden;}
.btn-primary{background:var(--grad);color:white;box-shadow:var(--shadow-lg);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 28px 60px -16px rgba(99,102,241,.55);}
.btn-primary:active{transform:translateY(0);}
.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none;}
.btn-ghost{background:var(--surface-solid);color:var(--text);border:1px solid var(--border);}
.btn-ghost:hover{background:rgba(99,102,241,.06);}
.dl-fallback{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:14px;padding:13px 20px;border-radius:10px;cursor:pointer;background:rgba(16,185,129,.08);border:1px solid rgba(16,185,129,.25);color:#10b981;font-size:14px;font-weight:600;text-decoration:none;transition:background .15s;}
.dl-fallback:hover{background:rgba(16,185,129,.16);}
.btn::after{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:rgba(255,255,255,.3);transform:translate(-50%,-50%);transition:width .5s var(--ease),height .5s var(--ease);}
.btn:active::after{width:300px;height:300px;}
.actions{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap;}
.loader{display:inline-block;width:16px;height:16px;border:2.5px solid rgba(255,255,255,.3);border-top-color:white;border-radius:50%;animation:spin .7s linear infinite;}
@keyframes spin{to{transform:rotate(360deg);}}
.toast{position:fixed;bottom:24px;right:24px;padding:14px 20px;border-radius:12px;background:var(--surface-solid);color:var(--text);border:1px solid var(--border);box-shadow:var(--shadow-lg);font-size:14px;font-weight:500;opacity:0;transform:translateY(20px);transition:all .4s var(--ease);pointer-events:none;z-index:100;}
.toast.show{opacity:1;transform:translateY(0);}
.toast.success{border-left:4px solid var(--success);}
.toast.error{border-left:4px solid var(--danger);}
.help{font-size:12px;color:var(--text-muted);margin-top:6px;}
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:20px;background:rgba(99,102,241,.1);color:var(--primary);font-size:12px;font-weight:600;}
.preview-section{margin-top:20px;padding-top:20px;border-top:1px dashed var(--border);animation:panelIn .4s var(--ease);}
.preview-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;flex-wrap:wrap;gap:8px;}
.preview-header h3{margin:0;font-size:15px;font-weight:700;}
.preview-header .actions-mini{display:flex;gap:8px;}
.preview-header .btn-mini{padding:6px 12px;font-size:12px;font-weight:600;border-radius:8px;border:1px solid var(--border);background:var(--surface-solid);color:var(--text);cursor:pointer;transition:all .2s var(--ease);}
.preview-header .btn-mini:hover{background:rgba(99,102,241,.08);border-color:var(--primary);}
.preview-loader{display:flex;align-items:center;gap:10px;padding:16px;color:var(--text-muted);font-size:14px;}
.preview-loader .loader{border-color:rgba(99,102,241,.2);border-top-color:var(--primary);}
.preview-error{padding:12px 14px;border-radius:10px;background:rgba(239,68,68,.08);color:var(--danger);font-size:13px;}
.preview-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:14px;max-height:480px;overflow-y:auto;padding:4px 4px 8px;}
.preview-grid::-webkit-scrollbar{width:8px;}
.preview-grid::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px;}
.preview-card{position:relative;border-radius:10px;background:var(--surface-solid);border:2px solid var(--border);cursor:pointer;overflow:hidden;transition:all .25s var(--ease);animation:fileIn .3s var(--ease);}
.preview-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--primary);}
.preview-card.selected{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.18),var(--shadow-md);}
.preview-card.removed{border-color:var(--danger);box-shadow:0 0 0 3px rgba(239,68,68,.18);}
.preview-card.removed .preview-canvas-wrap{opacity:.35;filter:grayscale(.6);}
.preview-card.removed::after{content:"✕";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:36px;font-weight:800;color:var(--danger);text-shadow:0 2px 8px rgba(0,0,0,.2);pointer-events:none;}
.preview-canvas-wrap{display:flex;align-items:center;justify-content:center;background:#fff;aspect-ratio:.71;overflow:hidden;transition:transform .4s var(--ease);}
.preview-canvas-wrap canvas{max-width:100%;max-height:100%;display:block;}
.preview-card .preview-num{position:absolute;bottom:6px;left:6px;background:rgba(15,23,42,.78);color:white;font-size:11px;font-weight:700;padding:3px 8px;border-radius:6px;backdrop-filter:blur(4px);}
.preview-card .preview-rotation{position:absolute;top:6px;right:6px;width:26px;height:26px;border-radius:50%;background:var(--grad);color:white;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;box-shadow:var(--shadow-sm);opacity:0;transform:scale(.5);transition:all .25s var(--ease);}
.preview-card.selected .preview-rotation{opacity:1;transform:scale(1);}
.order-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px;margin-top:16px;}
.order-card{position:relative;background:var(--surface-solid);border:2px solid var(--border);border-radius:12px;overflow:hidden;cursor:grab;transition:transform .2s var(--ease),box-shadow .25s var(--ease),border-color .2s var(--ease),opacity .2s var(--ease);animation:fileIn .3s var(--ease);user-select:none;}
.order-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--primary);}
.order-card.dragging{opacity:.4;cursor:grabbing;transform:scale(.96);}
.order-card.drag-over{border-color:var(--primary);box-shadow:0 0 0 4px rgba(99,102,241,.18);transform:translateY(-2px);}
.order-thumb{position:relative;background:#f1f5f9;aspect-ratio:.74;display:flex;align-items:center;justify-content:center;overflow:hidden;}
[data-theme="dark"] .order-thumb{background:#0f172a;}
.order-thumb canvas,.order-thumb img{max-width:100%;max-height:100%;display:block;pointer-events:none;}
.order-thumb.thumb-loading::after{content:"";width:24px;height:24px;border:2.5px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;}
.order-thumb-pages{position:absolute;bottom:6px;right:6px;background:rgba(15,23,42,.78);color:white;font-size:10px;font-weight:700;padding:3px 7px;border-radius:6px;backdrop-filter:blur(4px);}
.order-pos{position:absolute;top:6px;left:6px;width:26px;height:26px;background:var(--grad);color:white;font-size:12px;font-weight:800;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);}
.order-handle{position:absolute;top:6px;right:36px;width:26px;height:26px;background:rgba(15,23,42,.62);color:white;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;line-height:1;letter-spacing:-1px;backdrop-filter:blur(4px);opacity:0;transition:opacity .2s var(--ease);}
.order-card:hover .order-handle{opacity:1;}
.order-remove{position:absolute;top:6px;right:6px;width:26px;height:26px;background:rgba(239,68,68,.92);color:white;border:none;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .2s var(--ease);}
.order-card:hover .order-remove{opacity:1;}
.order-remove:hover{transform:scale(1.1);}
.order-remove svg{width:12px;height:12px;stroke:currentColor;fill:none;stroke-width:2.5;}
.order-info{padding:10px 12px;border-top:1px solid var(--border);}
.order-name{font-size:12px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.order-meta{font-size:11px;color:var(--text-muted);margin-top:2px;}
.order-hint{font-size:12px;color:var(--text-muted);text-align:center;margin-top:14px;padding:8px;border-radius:8px;background:rgba(99,102,241,.06);}
.compress-result{margin-top:16px;padding:14px 18px;border-radius:12px;background:rgba(16,185,129,.08);border:1px solid rgba(16,185,129,.2);font-size:14px;display:none;}
.compress-result.warning{background:rgba(245,158,11,.08);border-color:rgba(245,158,11,.2);}
.ad-slot{background:rgba(99,102,241,.03);border:1px dashed rgba(99,102,241,.15);border-radius:12px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;}
.ad-slot-label{position:absolute;top:5px;left:50%;transform:translateX(-50%);font-size:9px;color:#94a3b8;letter-spacing:1px;text-transform:uppercase;}
.hero{position:relative;z-index:1;text-align:center;padding:80px 24px 60px;max-width:900px;margin:0 auto;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(99,102,241,.1);color:var(--primary);font-size:13px;font-weight:700;padding:6px 16px;border-radius:20px;margin-bottom:24px;letter-spacing:.02em;}
.hero h1{font-size:clamp(34px,5.5vw,62px);font-weight:900;letter-spacing:-.03em;line-height:1.1;margin:0 0 20px;color:var(--text);}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.hero p{font-size:clamp(16px,2vw,20px);color:var(--text-muted);line-height:1.65;margin:0 auto 36px;max-width:620px;}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.tools-section{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:0 24px 80px;}
.section-head{text-align:center;margin-bottom:40px;}
.section-head h2{font-size:clamp(26px,3.5vw,40px);font-weight:800;letter-spacing:-.025em;margin:0 0 12px;color:var(--text);}
.section-head p{color:var(--text-muted);font-size:16px;margin:0;}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;}
.tool-card{background:var(--surface-solid);border:1px solid var(--border);border-radius:16px;padding:24px 20px;text-decoration:none;color:var(--text);display:flex;flex-direction:column;gap:14px;transition:all .28s var(--ease);position:relative;overflow:hidden;}
.tool-card::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:0;transition:opacity .3s var(--ease);}
.tool-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--primary);}
.tool-card:hover::before{opacity:.04;}
.tool-card-icon{width:48px;height:48px;border-radius:12px;background:rgba(99,102,241,.1);color:var(--primary);display:flex;align-items:center;justify-content:center;transition:all .3s var(--ease);position:relative;z-index:1;}
.tool-card:hover .tool-card-icon{background:var(--grad);color:white;box-shadow:var(--shadow-lg);}
.tool-card-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.tool-card-body{position:relative;z-index:1;}
.tool-card-body h3{margin:0 0 6px;font-size:16px;font-weight:700;}
.tool-card-body p{margin:0;font-size:13px;color:var(--text-muted);line-height:1.6;}
.features-section{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:0 24px 80px;}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;}
.feature-card{background:var(--surface-solid);border:1px solid var(--border);border-radius:16px;padding:28px 24px;}
.feature-card-icon{width:44px;height:44px;border-radius:12px;background:var(--grad);color:white;display:flex;align-items:center;justify-content:center;margin-bottom:16px;box-shadow:var(--shadow-md);}
.feature-card-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.feature-card h3{margin:0 0 8px;font-size:17px;font-weight:700;}
.feature-card p{margin:0;font-size:14px;color:var(--text-muted);line-height:1.7;}
.seo-section{position:relative;z-index:1;max-width:900px;margin:0 auto;padding:0 24px 60px;}
.seo-card{background:var(--surface-solid);border:1px solid var(--border);border-radius:14px;padding:24px;margin-bottom:16px;}
.seo-card h3{margin:0 0 10px;font-size:16px;font-weight:700;color:var(--text);}
.seo-card p,.seo-card li{font-size:14px;color:var(--text-muted);line-height:1.75;margin:0;}
.seo-card ul,.seo-card ol{margin:8px 0 0 0;padding-left:20px;}
.seo-card li{margin-bottom:6px;}
.faq-section{position:relative;z-index:1;max-width:900px;margin:0 auto;padding:0 24px 80px;}
.faq-section h2{font-size:clamp(22px,3vw,34px);font-weight:800;letter-spacing:-.02em;margin:0 0 28px;color:var(--text);}
.faq-item{background:var(--surface-solid);border:1px solid var(--border);border-radius:12px;padding:20px 22px;margin-bottom:12px;}
.faq-item h3{margin:0 0 10px;font-size:15px;font-weight:700;color:var(--text);}
.faq-item p{margin:0;font-size:13px;color:var(--text-muted);line-height:1.72;}
.breadcrumb{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--text-muted);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-muted);text-decoration:none;transition:color .2s;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb span{color:var(--text);font-weight:600;}
.related-tools{margin-top:32px;}
.related-tools h2{font-size:18px;font-weight:800;margin:0 0 16px;color:var(--text);}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;}
.related-card{background:var(--surface-solid);border:1px solid var(--border);border-radius:12px;padding:16px;text-decoration:none;color:var(--text);display:flex;align-items:center;gap:12px;font-size:14px;font-weight:600;transition:all .22s var(--ease);}
.related-card svg{width:18px;height:18px;flex-shrink:0;fill:none;stroke:var(--primary);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.related-card:hover{border-color:var(--primary);box-shadow:var(--shadow-sm);transform:translateY(-2px);}
.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;margin-top:32px;}
.blog-card{background:var(--surface-solid);border:1px solid var(--border);border-radius:16px;overflow:hidden;text-decoration:none;color:var(--text);transition:all .28s var(--ease);}
.blog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary);}
.blog-card-img{height:180px;background:var(--grad);display:flex;align-items:center;justify-content:center;}
.blog-card-img svg{width:56px;height:56px;fill:none;stroke:white;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.blog-card-body{padding:22px;}
.blog-card-tag{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--primary);margin-bottom:8px;}
.blog-card-body h3{margin:0 0 10px;font-size:18px;font-weight:700;line-height:1.35;}
.blog-card-body p{margin:0 0 16px;font-size:14px;color:var(--text-muted);line-height:1.65;}
.blog-card-meta{font-size:12px;color:var(--text-muted);}
.article-wrap{position:relative;z-index:1;max-width:780px;margin:0 auto;padding:32px 24px 80px;}
.article-header{margin-bottom:40px;}
.article-header .article-tag{display:inline-block;background:rgba(99,102,241,.1);color:var(--primary);font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:5px 12px;border-radius:20px;margin-bottom:16px;}
.article-header h1{font-size:clamp(28px,4vw,46px);font-weight:900;letter-spacing:-.025em;line-height:1.15;margin:0 0 16px;color:var(--text);}
.article-header .article-meta{font-size:13px;color:var(--text-muted);}
.article-body h2{font-size:22px;font-weight:800;margin:36px 0 14px;color:var(--text);}
.article-body h3{font-size:17px;font-weight:700;margin:24px 0 10px;color:var(--text);}
.article-body p{font-size:16px;color:var(--text-muted);line-height:1.8;margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body li{font-size:15px;color:var(--text-muted);line-height:1.7;margin-bottom:8px;}
.article-body strong{color:var(--text);font-weight:700;}
.article-cta{margin-top:40px;padding:32px;background:rgba(99,102,241,.06);border:1px solid rgba(99,102,241,.15);border-radius:16px;text-align:center;}
.article-cta h3{margin:0 0 10px;font-size:20px;font-weight:800;color:var(--text);}
.article-cta p{margin:0 0 20px;color:var(--text-muted);font-size:15px;}
.site-footer{position:relative;z-index:1;background:var(--surface-solid);border-top:1px solid var(--border);padding:48px 24px 32px;}
.footer-inner{max-width:1200px;margin:0 auto;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px;}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;}  .top-nav{display:none;}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand p{font-size:13px;color:var(--text-muted);line-height:1.7;margin:12px 0 0;max-width:280px;}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--text-muted);margin:0 0 14px;}
.footer-col a{display:block;font-size:14px;color:var(--text-muted);text-decoration:none;margin-bottom:8px;transition:color .2s;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{padding-top:24px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--text-muted);}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;}
@media(max-width:700px){.contact-grid{grid-template-columns:1fr;}}
.contact-info h2{font-size:22px;font-weight:800;margin:0 0 14px;color:var(--text);}
.contact-info p{font-size:15px;color:var(--text-muted);line-height:1.75;}
.contact-info-item{display:flex;gap:14px;align-items:flex-start;margin-bottom:20px;}
.contact-info-icon{width:40px;height:40px;border-radius:10px;background:rgba(99,102,241,.1);color:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.contact-info-icon svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}