/* base.css */
:root{--bg-primary:#0a0a1a;--bg-secondary:#0f0f24;--bg-card:rgba(26,26,62,0.6);--bg-card-hover:rgba(34,34,85,0.7);--gradient-primary:linear-gradient(135deg,#667eea 0%,#764ba2 100%);--gradient-hero:linear-gradient(135deg,#f093fb 0%,#667eea 40%,#4facfe 100%);--text-primary:#e8e8f0;--text-secondary:#a0a0c0;--text-muted:#606080;--text-accent:#667eea;--glow-primary:0 0 20px rgba(102,126,234,0.4);--glow-card:0 0 15px rgba(102,126,234,0.15);--glow-card-hover:0 0 30px rgba(102,126,234,0.3);--font-sans:Inter,PingFang SC,Microsoft YaHei,sans-serif;--container-max:1200px;--section-gap:4rem;--card-gap:1.5rem;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--transition-fast:150ms ease;--transition-normal:300ms ease}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden}
body::before{content:'';position:fixed;top:0;left:0;right:0;bottom:0;background-image:linear-gradient(rgba(102,126,234,0.03)1px,transparent 1px),linear-gradient(90deg,rgba(102,126,234,0.03)1px,transparent 1px);background-size:60px 60px;pointer-events:none;z-index:0}
h1,h2,h3{font-weight:700;line-height:1.3;color:var(--text-primary)}h1{font-size:clamp(2rem,5vw,3rem)}h2{font-size:clamp(1.5rem,3.5vw,2.2rem)}h3{font-size:clamp(1.2rem,2.5vw,1.5rem)}a{color:var(--text-accent);text-decoration:none}a:hover{color:#8b9cf0}p{color:var(--text-secondary)}
.container{max-width:var(--container-max);margin:0 auto;padding:0 1.5rem;position:relative;z-index:1}.section{padding:var(--section-gap)0}
.hero{position:relative;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;padding:4rem 1rem}
.hero::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:var(--gradient-hero);opacity:0.08;animation:heroRotate 20s linear infinite}
@keyframes heroRotate{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}.hero-content{position:relative;z-index:1;max-width:800px}.hero h1{font-size:clamp(2.5rem,6vw,4rem);margin-bottom:1.5rem;line-height:1.2}
.gradient-text{background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero .subtitle{font-size:clamp(1rem,2vw,1.3rem);color:var(--text-secondary);margin-bottom:2.5rem;max-width:600px;margin-left:auto;margin-right:auto}.hero-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:0.5rem;padding:0.75rem 1.8rem;border-radius:var(--radius-md);font-size:1rem;font-weight:600;border:none;cursor:pointer;transition:all var(--transition-normal);text-decoration:none;font-family:var(--font-sans)}
.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--glow-primary)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(102,126,234,0.6);color:#fff}
.btn-outline{background:transparent;color:var(--text-primary);border:1px solid rgba(102,126,234,0.4)}.btn-outline:hover{border-color:var(--text-accent);background:rgba(102,126,234,0.1);transform:translateY(-2px)}
.btn-sm{padding:0.4rem 1rem;font-size:0.85rem}.btn-lg{padding:1rem 2.5rem;font-size:1.1rem}
.stats-bar{display:flex;justify-content:center;gap:3rem;flex-wrap:wrap;padding:2rem 0}.stat-item{text-align:center}.stat-number{font-size:2.5rem;font-weight:800;background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{font-size:0.9rem;color:var(--text-muted);margin-top:0.25rem}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--card-gap)}
.card{background:var(--bg-card);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(102,126,234,0.15);border-radius:var(--radius-lg);padding:1.5rem;transition:all var(--transition-normal);position:relative;overflow:hidden}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(135deg,rgba(102,126,234,0.3),rgba(118,75,162,0.3));opacity:0;transition:opacity var(--transition-normal)}
.card:hover{transform:translateY(-4px);box-shadow:var(--glow-card-hover);background:var(--bg-card-hover);border-color:rgba(102,126,234,0.3)}.card:hover::before{opacity:1}.card-icon{font-size:2.5rem;margin-bottom:0.75rem;display:block}.card-title{font-size:1.1rem;font-weight:700;margin-bottom:0.5rem}.card-desc{font-size:0.9rem;color:var(--text-secondary);margin-bottom:1rem;line-height:1.5}.category-card{text-align:center;padding:2rem 1.5rem}.category-card .card-icon{font-size:3rem}.tool-count{display:inline-block;background:rgba(102,126,234,0.15);color:var(--text-accent);padding:0.2rem 0.75rem;border-radius:20px;font-size:0.8rem;margin-top:0.5rem}
.tool-table{width:100%;border-collapse:separate;border-spacing:0 0.6rem}.tool-table thead th{padding:0.7rem 1rem;color:var(--text-primary);font-size:0.9rem;font-weight:600;background:rgba(102,126,234,0.12);border:none;white-space:nowrap}.tool-table thead tr th:first-child{border-radius:var(--radius-md)0 0 var(--radius-md)}.tool-table thead tr th:last-child{border-radius:0 var(--radius-md)var(--radius-md)0}.tool-table tbody tr{background:var(--bg-card);backdrop-filter:blur(10px);border:1px solid rgba(102,126,234,0.12);border-radius:var(--radius-lg);transition:all var(--transition-normal)}.tool-table tbody tr:hover{background:var(--bg-card-hover);box-shadow:var(--glow-card-hover);border-color:rgba(102,126,234,0.25);transform:translateY(-2px)}.tool-table tbody td{padding:1.1rem 1.25rem;vertical-align:middle}.tool-table tbody td:first-child{border-radius:var(--radius-lg)0 0 var(--radius-lg)}.tool-table tbody td:last-child{border-radius:0 var(--radius-lg)var(--radius-lg)0}.tool-table .rank{font-weight:700;font-size:1.15rem;text-align:center;width:52px;color:var(--text-muted)}.rank-1{color:#f5af19!important}.rank-2{color:#bdc3c7!important}.rank-3{color:#cd7f32!important}.tool-table .tool-name{font-weight:600;font-size:1rem}.tool-table .tool-name a{color:var(--text-primary)}.tool-table .tool-name a:hover{color:var(--text-accent)}.tool-table .tool-name small{display:block;font-weight:400;color:var(--text-muted);font-size:0.8rem;margin-top:0.15rem}.tool-table .stars-col{color:#f5af19;font-weight:600;white-space:nowrap;font-size:0.95rem}.tool-table .desc-cell{color:var(--text-secondary);font-size:0.9rem;line-height:1.55;max-width:380px}
.badge{display:inline-block;padding:0.2rem 0.6rem;border-radius:20px;font-size:0.75rem;font-weight:600;white-space:nowrap}.badge-primary{background:rgba(102,126,234,0.2);color:var(--text-accent)}.badge-success{background:rgba(72,199,142,0.2);color:#48c78e}.badge-warning{background:rgba(245,175,25,0.2);color:#f5af19}.badge-license{background:rgba(0,210,255,0.15);color:#00d2ff}
.breadcrumb{display:flex;align-items:center;gap:0.5rem;font-size:0.9rem;color:var(--text-muted);padding:1rem 0;flex-wrap:wrap}.breadcrumb a{color:var(--text-muted)}.breadcrumb a:hover{color:var(--text-accent)}.breadcrumb .separator{color:var(--text-muted)}.breadcrumb .current{color:var(--text-primary)}
.tool-hero{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start;padding:2rem 0}.tool-hero-info h1{margin-bottom:0.75rem}.tool-hero-meta{display:flex;gap:0.75rem;flex-wrap:wrap;margin:1rem 0}.tool-hero-desc{font-size:1.1rem;color:var(--text-secondary);margin:1rem 0 1.5rem}
.tool-hero-actions{background:var(--bg-card);backdrop-filter:blur(10px);border:1px solid rgba(102,126,234,0.2);border-radius:var(--radius-lg);padding:1.5rem}
.download-btn-primary{display:block;width:100%;padding:1rem;background:var(--gradient-primary);color:#fff;border:none;border-radius:var(--radius-md);font-size:1.1rem;font-weight:700;cursor:pointer;text-align:center;transition:all var(--transition-normal);text-decoration:none;margin-bottom:1rem}.download-btn-primary:hover{box-shadow:var(--glow-primary);transform:translateY(-2px);color:#fff}
.affiliate-section{margin-top:1.5rem}.affiliate-title{font-size:0.85rem;color:var(--text-muted);margin-bottom:0.75rem;text-align:center}.affiliate-links{display:grid;grid-template-columns:1fr 1fr;gap:0.75rem}.affiliate-link{display:block;padding:0.6rem 0.75rem;border-radius:var(--radius-sm);font-size:0.85rem;text-align:center;font-weight:600;transition:all var(--transition-fast)}.affiliate-link.baidu{background:rgba(41,128,185,0.2);color:#3498db;border:1px solid rgba(52,152,219,0.3)}.affiliate-link.quark{background:rgba(0,210,255,0.15);color:#00d2ff}
.feature-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem;list-style:none;padding:0}.feature-item{display:flex;align-items:flex-start;gap:0.75rem;padding:1rem;background:var(--bg-card);border-radius:var(--radius-md);border:1px solid rgba(102,126,234,0.1)}.feature-icon{color:var(--text-accent);font-size:1.2rem;flex-shrink:0}.feature-text{color:var(--text-secondary);font-size:0.95rem}
.info-table{width:100%;border-collapse:collapse}.info-table tr{border-bottom:1px solid rgba(102,126,234,0.1)}.info-table td{padding:0.75rem 0}.info-table td:first-child{color:var(--text-muted);width:150px;font-size:0.9rem}.info-table td:last-child{color:var(--text-primary);font-weight:500}
.platform-tabs{display:flex;gap:0.5rem;margin-bottom:1rem}.platform-tab{padding:0.5rem 1.2rem;border-radius:var(--radius-sm);font-size:0.9rem;font-weight:600;cursor:pointer;border:1px solid rgba(102,126,234,0.2);background:transparent;color:var(--text-secondary);font-family:var(--font-sans)}.platform-tab.active{background:rgba(102,126,234,0.2);color:var(--text-accent);border-color:var(--text-accent)}
.search-bar{position:relative;max-width:500px;margin:0 auto 2rem}.search-bar input{width:100%;padding:0.85rem 1rem 0.85rem 2.75rem;background:var(--bg-card);border:1px solid rgba(102,126,234,0.2);border-radius:var(--radius-xl);color:var(--text-primary);font-size:1rem;font-family:var(--font-sans)}.search-bar input::placeholder{color:var(--text-muted)}.search-bar input:focus{outline:none;border-color:var(--text-accent);box-shadow:var(--glow-card)}.search-bar .search-icon{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--text-muted);pointer-events:none}
.related-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--card-gap)}.related-tools.five-col{grid-template-columns:repeat(5,1fr)}
.cta-banner{text-align:center;padding:3rem 1rem;background:var(--gradient-primary);border-radius:var(--radius-xl);margin:var(--section-gap)0;overflow:hidden}.cta-banner h2{color:#fff;margin-bottom:0.75rem}.cta-banner .btn{background:#fff;color:#667eea}
.section-header{text-align:center;margin-bottom:2.5rem}.page-header{text-align:center;padding:1.5rem 1rem 1.5rem}.page-header .category-icon{font-size:3.5rem;display:block;margin-bottom:0.2rem}.page-header h1{margin-bottom:0.6rem}.page-header .lead{font-size:1.05rem;color:var(--text-secondary);max-width:600px;margin:0 auto}
.no-results{text-align:center;padding:3rem 1rem;color:var(--text-muted);display:none}.tutorial-placeholder{text-align:center;padding:3rem 1rem;background:var(--bg-card);border-radius:var(--radius-lg);border:2px dashed rgba(102,126,234,0.2);color:var(--text-muted)}
[data-theme="light"]{--bg-primary:#f5f5f8;--bg-secondary:#e8e8f0;--bg-card:rgba(255,255,255,0.85);--bg-card-hover:rgba(255,255,255,0.95);--text-primary:#1a1a2e;--text-secondary:#4a4a6a;--text-muted:#8888a0;--text-accent:#5a6fd6;--glow-primary:0 0 20px rgba(90,111,214,0.2);--glow-card:0 0 10px rgba(90,111,214,0.08);--glow-card-hover:0 0 20px rgba(90,111,214,0.15)}
[data-theme="light"] body::before{background-image:linear-gradient(rgba(90,111,214,0.04)1px,transparent 1px),linear-gradient(90deg,rgba(90,111,214,0.04)1px,transparent 1px)}
@media(max-width:1024px){.tool-hero{grid-template-columns:1fr;gap:2rem}.related-tools.five-col{grid-template-columns:repeat(3,1fr)}}@media(max-width:768px){:root{--section-gap:2.5rem}.hero{padding:3rem 1rem}.hero h1{font-size:2rem}.stats-bar{gap:1.5rem}.stat-number{font-size:1.8rem}.card-grid{grid-template-columns:1fr}.feature-list{grid-template-columns:1fr}.tool-table thead{display:none}.tool-table tbody tr{display:flex;flex-direction:column;padding:1rem;margin-bottom:0.75rem;border-radius:var(--radius-md)}.tool-table tbody td{padding:0.3rem 0}.affiliate-links{grid-template-columns:1fr}.related-tools{grid-template-columns:1fr}.hero-actions{flex-direction:column;align-items:center}}@media(max-width:480px){.container{padding:0 1rem}}