/* 车主宝 - PREMIUM EDITION */
:root{
--primary:#607d8b;--secondary:#37474f;--accent:#90a4ae;--bg:#080a0c;--card:#121620;--text:#eceff1;--muted:#687888;--grad:linear-gradient(135deg,#607d8b 0%,#263238 50%,#080a0c 100%);
--glass:rgba(255,255,255,.04);--glass-border:rgba(255,255,255,.08);--glass-hover:rgba(255,255,255,.07);
--shadow-sm:0 2px 8px rgba(0,0,0,.2);--shadow-md:0 8px 24px rgba(0,0,0,.3);--shadow-lg:0 16px 48px rgba(0,0,0,.4);
--shadow-glow:0 0 24px #607d8b44;--radius:14px;--radius-lg:20px;
--transition:cubic-bezier(.4,0,.2,1);--ease-out:cubic-bezier(0,0,.2,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
background:var(--bg);color:var(--text);line-height:1.85;min-height:100vh;
-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
text-rendering:optimizeLegibility;letter-spacing:.01em;
overflow-x:hidden;
}
body::before{
content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;
background:
radial-gradient(ellipse 60% 50% at 15% 10%,#607d8b11,transparent 60%),
radial-gradient(ellipse 50% 40% at 85% 80%,#90a4ae0d,transparent 60%),
radial-gradient(ellipse 40% 30% at 50% 50%,#37474f08,transparent 70%);
}
a{color:var(--accent);text-decoration:none;transition:color .3s var(--transition)}
a:hover{color:var(--primary)}
.container{max-width:1320px;margin:0 auto;padding:0 20px}

/* Reading Progress Bar */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--grad);z-index:9999;transition:width .1s linear;box-shadow:0 0 8px #607d8b88}

/* Header - Glassmorphism */
.site-header{position:sticky;top:0;z-index:1000}
.header-bar{
background:rgba(6,8,14,.85);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);
border-bottom:1px solid var(--glass-border);
box-shadow:0 1px 0 rgba(255,255,255,.03) inset,var(--shadow-sm);
}
.header-flex{display:flex;align-items:center;gap:24px;height:68px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);font-size:1.3em;font-weight:800;white-space:nowrap;letter-spacing:.02em}
.logo-icon{font-size:1.4em;filter:drop-shadow(0 2px 4px #607d8b66)}
.main-nav{display:flex;gap:2px;flex:1;overflow-x:auto;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.nav-item{padding:8px 14px;color:var(--text);border-radius:8px;font-size:14px;white-space:nowrap;transition:all .3s var(--transition);position:relative}
.nav-item:hover{background:var(--glass-hover);color:var(--accent);text-decoration:none}
.nav-item::after{content:'';position:absolute;bottom:2px;left:50%;width:0;height:2px;background:var(--grad);border-radius:2px;transition:all .3s var(--transition);transform:translateX(-50%)}
.nav-item:hover::after{width:60%}
.search-form{display:flex}
.search-input{
background:var(--glass);border:1px solid var(--glass-border);color:var(--text);
padding:8px 14px;border-radius:20px 0 0 20px;outline:none;width:200px;font-size:14px;
transition:all .3s var(--transition)}
.search-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #607d8b22;width:240px}
.search-input::placeholder{color:var(--muted)}
.search-btn{background:var(--grad);border:none;color:#fff;padding:8px 16px;border-radius:0 20px 20px 0;cursor:pointer;transition:all .3s var(--transition)}
.search-btn:hover{filter:brightness(1.15)}
.ticker{
background:linear-gradient(90deg,var(--card),var(--bg),var(--card));
overflow:hidden;white-space:nowrap;font-size:13px;color:var(--muted);
border-bottom:1px solid rgba(255,255,255,.03);padding:2px 0}
.ticker-inner{display:inline-block;padding:6px 0;animation:scroll 30s linear infinite;padding-left:100%}
@keyframes scroll{0%{transform:translateX(0)}100%{transform:translateX(-100%)}}

/* Hero - Premium Gradient */
.hero{position:relative;padding:80px 20px 60px;text-align:center;overflow:hidden}
.hero-bg{
position:absolute;inset:0;background:var(--grad);opacity:.1;
}
.hero-bg::before{
content:'';position:absolute;inset:0;
background:
radial-gradient(circle at 20% 30%,#90a4ae22,transparent 50%),
radial-gradient(circle at 80% 70%,#607d8b22,transparent 50%),
radial-gradient(circle at 50% 100%,#37474f11,transparent 60%);
animation:heroPulse 8s ease-in-out infinite alternate;
}
@keyframes heroPulse{0%{opacity:.7;transform:scale(1)}100%{opacity:1;transform:scale(1.05)}}
.hero-bg::after{
content:'';position:absolute;inset:0;
background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
background-size:40px 40px;
}
.hero-content{position:relative;max-width:900px;margin:0 auto;animation:fadeInUp .8s var(--ease-out)}
@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}100%{opacity:1;transform:translateY(0)}}
.hero-title{
font-size:3.2em;margin-bottom:14px;font-weight:900;letter-spacing:.02em;
background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
filter:drop-shadow(0 4px 12px #607d8b33);
}
.hero-slogan{font-size:1.4em;color:var(--accent);margin-bottom:14px;font-weight:600;text-shadow:0 2px 8px rgba(0,0,0,.3)}
.hero-desc{color:var(--muted);margin-bottom:28px;font-size:1.08em;max-width:680px;margin-left:auto;margin-right:auto}
.hero-actions{display:flex;gap:16px;justify-content:center;margin-bottom:32px}
.btn{padding:13px 32px;border-radius:28px;font-size:1.05em;font-weight:700;transition:all .35s var(--transition);cursor:pointer;border:none}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 4px 20px #607d8b55,0 0 0 1px #607d8b33 inset}
.btn-primary:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 8px 28px #607d8b66,0 0 0 1px #607d8b44 inset;text-decoration:none;color:#fff}
.btn-ghost{border:2px solid var(--accent);color:var(--accent);background:var(--glass)}
.btn-ghost:hover{background:var(--accent);color:var(--bg);text-decoration:none;box-shadow:0 4px 20px #90a4ae44}
.hero-features{list-style:none;display:flex;gap:28px;justify-content:center;flex-wrap:wrap;color:var(--muted);font-size:.95em}
.hero-features li{display:flex;align-items:center;gap:6px}

/* Stats Bar - Glass */
.stats-bar{display:flex;gap:8px;justify-content:center;padding:28px 20px;background:var(--glass);border-top:1px solid var(--glass-border);border-bottom:1px solid var(--glass-border);flex-wrap:wrap;backdrop-filter:blur(10px)}
.stat{text-align:center;padding:8px 32px}
.stat b{display:block;font-size:2em;color:var(--accent);font-weight:900;text-shadow:0 0 20px #90a4ae44}
.stat span{color:var(--muted);font-size:.85em;text-transform:uppercase;letter-spacing:.05em}

/* Main Layout */
.main-wrap{display:grid;grid-template-columns:1fr 340px;gap:32px;padding:44px 20px}
.content-main{min-width:0}
.block{margin-bottom:50px}
.block-title{
font-size:1.55em;margin-bottom:20px;padding-left:14px;
border-left:4px solid var(--primary);font-weight:800;letter-spacing:.01em;
display:flex;align-items:center;gap:8px;
}
.block-title::after{content:'';flex:1;height:1px;background:linear-gradient(90deg,var(--glass-border),transparent)}

/* Feature Cards - Glassmorphism */
.fcard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:900px){.fcard-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.fcard-grid{grid-template-columns:1fr}.main-wrap{grid-template-columns:1fr}}
.fcard{
background:var(--glass);border-radius:var(--radius);overflow:hidden;
border:1px solid var(--glass-border);
transition:all .4s var(--transition);position:relative;
backdrop-filter:blur(10px);
}
.fcard::before{content:'';position:absolute;inset:0;background:var(--grad);opacity:0;transition:opacity .4s var(--transition);pointer-events:none}
.fcard:hover{transform:translateY(-6px);border-color:var(--primary);box-shadow:var(--shadow-md),var(--shadow-glow)}
.fcard:hover::before{opacity:.05}
.fcard-icon{
height:130px;display:flex;align-items:center;justify-content:center;font-size:3.2em;
background:linear-gradient(135deg,var(--glass),transparent);
}
.fcard-info{padding:14px 16px}
.fcard-info h3{font-size:1.1em;margin-bottom:6px;color:var(--text)}
.fcard-info p{color:var(--muted);font-size:.88em;line-height:1.6}
.fcard-info a{color:var(--accent);font-size:.85em;font-weight:600}
.fcard-info a:hover{color:var(--primary)}

/* Article List Cards */
.alist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(max-width:760px){.alist{grid-template-columns:1fr}}
.acard{
background:var(--glass);border-radius:var(--radius);padding:18px 20px;
border:1px solid var(--glass-border);
transition:all .35s var(--transition);position:relative;overflow:hidden;
backdrop-filter:blur(8px);
}
.acard::after{content:'';position:absolute;top:0;left:0;width:3px;height:100%;background:var(--grad);transform:scaleY(0);transform-origin:top;transition:transform .35s var(--transition)}
.acard:hover{transform:translateX(4px);border-color:var(--glass-hover);background:var(--glass-hover);box-shadow:var(--shadow-sm)}
.acard:hover::after{transform:scaleY(1)}
.acard-cat{display:inline-block;font-size:.75em;color:var(--accent);background:#607d8b22;padding:2px 8px;border-radius:4px;margin-bottom:8px}
.acard h3{font-size:1.05em;margin-bottom:8px;line-height:1.5}
.acard h3 a{color:var(--text)}
.acard h3 a:hover{color:var(--accent)}
.acard p{color:var(--muted);font-size:.88em;line-height:1.6;margin-bottom:8px}
.acard-meta{font-size:.8em;color:var(--muted);display:flex;gap:12px}

/* Sidebar Widgets - Premium Glass */
.sidebar{display:flex;flex-direction:column;gap:20px}
.widget{
background:var(--glass);border-radius:var(--radius);overflow:hidden;
border:1px solid var(--glass-border);
backdrop-filter:blur(12px);
box-shadow:var(--shadow-sm);
}
.widget h3{
padding:14px 18px;font-size:1.05em;font-weight:700;
border-bottom:1px solid var(--glass-border);
background:linear-gradient(90deg,var(--glass-hover),transparent);
}
.widget-body{padding:14px 18px}
.side-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.03);transition:all .3s var(--transition)}
.side-item:last-child{border-bottom:none}
.side-item:hover{padding-left:4px}
.side-item a{color:var(--text);font-size:.9em;line-height:1.5;flex:1}
.side-item a:hover{color:var(--accent)}
.rank{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:6px;font-size:.8em;font-weight:700;background:var(--glass);color:var(--muted);flex-shrink:0}
.rank.top{background:var(--grad);color:#fff;box-shadow:0 2px 8px #607d8b44}

/* Category Navigation in Sidebar */
.cat-nav .cat-block{margin-bottom:10px}
.cat-link{display:block;color:var(--text);font-weight:600;font-size:.92em;padding:6px 0;transition:color .3s var(--transition)}
.cat-link:hover{color:var(--accent)}
.subcats{display:flex;flex-wrap:wrap;gap:4px;padding-left:8px}
.subcat-link{font-size:.82em;color:var(--muted);padding:2px 8px;border-radius:4px;background:var(--glass);transition:all .3s var(--transition)}
.subcat-link:hover{color:var(--accent);background:var(--glass-hover)}

/* Tag Cloud */
.tagcloud{display:flex;flex-wrap:wrap;gap:6px}
.cloudtag{display:inline-block;padding:4px 10px;border-radius:6px;font-size:13px;color:var(--muted);background:var(--glass);border:1px solid var(--glass-border);transition:all .3s var(--transition)}
.cloudtag:hover{color:#fff;background:var(--grad);border-color:var(--primary);text-decoration:none;transform:translateY(-2px)}

/* Tool Button */
.tool-btn{display:block;padding:14px;border-radius:var(--radius);background:var(--grad);color:#fff;text-align:center;font-weight:700;transition:all .35s var(--transition);box-shadow:0 4px 16px #607d8b33}
.tool-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px #607d8b55;text-decoration:none;color:#fff}

/* Contact Widget */
.widget-contact .big-contact{font-size:1.1em;color:var(--accent);font-weight:700;line-height:1.6;margin-bottom:6px}

/* Footer - Premium Dark */
.site-footer{
background:linear-gradient(180deg,transparent,var(--bg) 30%),var(--card);
border-top:1px solid var(--glass-border);
margin-top:60px;
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.5fr 1.5fr;gap:30px;padding:50px 20px 30px}
@media(max-width:760px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}
.fcol h3{font-size:1.1em;margin-bottom:14px;color:var(--accent);font-weight:700}
.fcol p{color:var(--muted);font-size:.9em;margin-bottom:8px;line-height:1.7}
.fcontact{color:var(--text);font-weight:600}
.fcontact-big{font-size:1.05em;color:var(--accent);font-weight:700;line-height:1.6}
.fnav{list-style:none}
.fnav li{margin-bottom:8px}
.fnav a{color:var(--muted);font-size:.9em;transition:color .3s var(--transition)}
.fnav a:hover{color:var(--accent)}
.flinks{display:flex;flex-wrap:wrap;gap:6px}
.flink{display:inline-block;padding:4px 10px;border-radius:6px;font-size:.82em;color:var(--muted);background:var(--glass);border:1px solid var(--glass-border);transition:all .3s var(--transition)}
.flink:hover{color:#fff;background:var(--grad);border-color:var(--primary);text-decoration:none;transform:translateY(-2px)}
.footer-bottom{padding:18px 20px;border-top:1px solid var(--glass-border);text-align:center}
.footer-bottom p{color:var(--muted);font-size:.85em;margin-bottom:4px}
.fbottom-contact{color:var(--accent);font-weight:600}

/* Back to Top */
.back-top{
position:fixed;bottom:30px;right:30px;width:48px;height:48px;
border-radius:50%;background:var(--grad);color:#fff;border:none;
font-size:20px;cursor:pointer;z-index:900;
box-shadow:0 4px 20px #607d8b55;transition:all .35s var(--transition);
opacity:0;transform:translateY(20px) scale(.8);pointer-events:none;
}
.back-top.visible{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}
.back-top:hover{transform:translateY(-4px) scale(1.1);box-shadow:0 8px 28px #607d8b66}

/* Article Page */
.article-wrap{max-width:860px;margin:0 auto;padding:40px 20px}
.breadcrumb{font-size:.85em;color:var(--muted);margin-bottom:20px;display:flex;gap:8px;align-items:center}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{color:var(--glass-border)}
.article-title{font-size:2em;font-weight:900;line-height:1.3;margin-bottom:16px;color:var(--text)}
.article-meta{display:flex;gap:16px;color:var(--muted);font-size:.88em;margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--glass-border)}
.article-content{font-size:1.05em;line-height:2;color:var(--text)}
.article-content p{margin-bottom:20px;text-indent:2em}
.article-content h2{font-size:1.4em;margin:30px 0 16px;padding-left:12px;border-left:4px solid var(--primary);color:var(--accent)}
.article-content h3{font-size:1.15em;margin:24px 0 12px;color:var(--text)}
.article-tags{margin-top:30px;padding-top:20px;border-top:1px solid var(--glass-border)}
.article-tags a{display:inline-block;padding:4px 12px;border-radius:6px;font-size:.85em;color:var(--muted);background:var(--glass);border:1px solid var(--glass-border);margin:0 4px 4px 0;transition:all .3s var(--transition)}
.article-tags a:hover{color:#fff;background:var(--grad);border-color:var(--primary);text-decoration:none}
.article-nav{display:flex;justify-content:space-between;margin-top:30px;padding:20px;background:var(--glass);border-radius:var(--radius);border:1px solid var(--glass-border);backdrop-filter:blur(8px)}
.article-nav a{color:var(--muted);font-size:.9em;max-width:45%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-nav a:hover{color:var(--accent)}
.related{margin-top:40px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:16px}
@media(max-width:600px){.related-grid{grid-template-columns:1fr}}
.related-item{background:var(--glass);border-radius:var(--radius);padding:14px;border:1px solid var(--glass-border);transition:all .35s var(--transition);backdrop-filter:blur(8px)}
.related-item:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--shadow-sm)}
.related-item a{color:var(--text);font-size:.92em;line-height:1.5}
.related-item a:hover{color:var(--accent)}

/* Category Page */
.cat-header{padding:40px 20px;text-align:center;background:var(--glass);border-radius:var(--radius-lg);border:1px solid var(--glass-border);margin-bottom:30px;backdrop-filter:blur(12px)}
.cat-header h1{font-size:2em;margin-bottom:10px;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.cat-header p{color:var(--muted);max-width:600px;margin:0 auto}
.subcat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:30px}
@media(max-width:760px){.subcat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.subcat-grid{grid-template-columns:1fr}}
.subcat-card{background:var(--glass);border-radius:var(--radius);padding:18px;text-align:center;border:1px solid var(--glass-border);transition:all .35s var(--transition);backdrop-filter:blur(8px)}
.subcat-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-md);background:var(--glass-hover)}
.subcat-card h3{color:var(--accent);font-size:1.05em;margin-bottom:6px}
.subcat-card p{color:var(--muted);font-size:.82em}
.subcat-card .count{display:inline-block;margin-top:8px;font-size:.8em;color:var(--primary);background:#607d8b22;padding:2px 10px;border-radius:4px}

/* Tools Page */
.tools-hero{padding:50px 20px;text-align:center;background:var(--glass);border-radius:var(--radius-lg);border:1px solid var(--glass-border);margin-bottom:30px;backdrop-filter:blur(12px)}
.tools-hero h1{font-size:2.4em;margin-bottom:12px;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tools-hero p{color:var(--muted);font-size:1.1em}
.tool-section{background:var(--glass);border-radius:var(--radius-lg);border:1px solid var(--glass-border);padding:30px;margin-bottom:24px;backdrop-filter:blur(12px)}
.tool-section h2{font-size:1.4em;margin-bottom:16px;color:var(--accent);display:flex;align-items:center;gap:8px}
.tool-box{background:var(--bg);border-radius:var(--radius);padding:24px;border:1px solid var(--glass-border)}
.tool-row{display:flex;gap:12px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.tool-label{font-size:.95em;color:var(--muted);min-width:100px}
.tool-input{background:var(--card);border:1px solid var(--glass-border);color:var(--text);padding:10px 14px;border-radius:8px;font-size:1em;outline:none;transition:all .3s var(--transition);width:120px}
.tool-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #607d8b22}
.tool-btn-calc{background:var(--grad);color:#fff;border:none;padding:10px 24px;border-radius:8px;font-size:1em;font-weight:700;cursor:pointer;transition:all .35s var(--transition)}
.tool-btn-calc:hover{transform:translateY(-2px);box-shadow:0 4px 16px #607d8b55}
.tool-result{background:var(--card);border-radius:8px;padding:16px;margin-top:14px;border-left:3px solid var(--primary)}
.tool-result b{color:var(--accent);font-size:1.3em}

/* Search Page */
.search-wrap{max-width:680px;margin:40px auto;padding:0 20px}
.search-box{display:flex;gap:0}
.search-box input{flex:1;background:var(--glass);border:1px solid var(--glass-border);color:var(--text);padding:14px 20px;border-radius:12px 0 0 12px;font-size:1.1em;outline:none;backdrop-filter:blur(8px)}
.search-box input:focus{border-color:var(--primary)}
.search-box button{background:var(--grad);color:#fff;border:none;padding:14px 28px;border-radius:0 12px 12px 0;font-size:1.1em;cursor:pointer;font-weight:700}
.search-results{margin-top:24px}

/* About/Contact */
.page-wrap{max-width:760px;margin:0 auto;padding:40px 20px}
.page-wrap h1{font-size:2em;margin-bottom:20px;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-wrap p{color:var(--muted);margin-bottom:16px;line-height:1.9}
.contact-card{background:var(--glass);border-radius:var(--radius-lg);border:1px solid var(--glass-border);padding:30px;margin:20px 0;backdrop-filter:blur(12px)}
.contact-card h2{color:var(--accent);margin-bottom:12px}
.contact-card p{color:var(--text);font-size:1.05em;margin-bottom:8px}

/* Fade-in Animation */
.fade-in{opacity:0;transform:translateY(20px);transition:opacity .6s var(--ease-out),transform .6s var(--ease-out)}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* Responsive */
@media(max-width:760px){
.hero-title{font-size:2.2em}
.hero-slogan{font-size:1.15em}
.stats-bar{gap:4px}
.stat{padding:6px 16px}
.stat b{font-size:1.5em}
.header-flex{height:60px;gap:12px}
.search-input{width:140px}
.search-input:focus{width:160px}
}