*{margin:0;padding:0;box-sizing:border-box}
:root{
--brand:#e8567a;
--brand-dark:#c73e60;
--brand-light:#fce8ee;
--brand-glow:rgba(232,86,122,.35);
--text:#2b2b2b;
--text-light:#666;
--bg:#fff;
--bg-alt:#faf7f8;
--border:#eee;
--shadow:0 2px 12px rgba(0,0,0,.06);
--glass:rgba(255,255,255,.65);
--glass-border:rgba(255,255,255,.6);
--radius:16px;
--grad:linear-gradient(135deg,#fce8ee 0%,#fff5f8 40%,#faf7f8 100%);
--grad-brand:linear-gradient(135deg,#e8567a 0%,#f0789a 50%,#ff9ab5 100%);
}
body.dark{
--text:#e8e8e8;
--text-light:#aaa;
--bg:#1a1a1e;
--bg-alt:#232328;
--border:#333;
--shadow:0 2px 12px rgba(0,0,0,.3);
--glass:rgba(35,35,40,.6);
--glass-border:rgba(255,255,255,.08);
--grad:linear-gradient(135deg,#2a1f26 0%,#232328 50%,#1a1a1e 100%);
--brand-light:#3a2530;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
color:var(--text);
background:var(--bg);
line-height:1.8;
font-size:16px;
transition:background .3s,color .3s;
overflow-x:hidden;
}
a{color:var(--brand);text-decoration:none;transition:color .2s}
a:hover{color:var(--brand-dark)}
img,svg{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:1180px;margin:0 auto;padding:0 20px}

/* Header */
.header{
position:sticky;top:0;z-index:1000;
background:var(--glass);
backdrop-filter:blur(14px);
-webkit-backdrop-filter:blur(14px);
border-bottom:1px solid var(--border);
box-shadow:var(--shadow);
transition:background .3s,border-color .3s;
}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--text);white-space:nowrap;transition:transform .25s}
.logo:hover{transform:scale(1.04);color:var(--brand)}
.logo svg{width:32px;height:32px;transition:transform .4s}
.logo:hover svg{transform:rotate(-12deg)}
.nav-links{display:flex;gap:22px;flex-wrap:wrap}
.nav-links a{color:var(--text);font-size:15px;font-weight:500;padding:6px 0;border-bottom:2px solid transparent;transition:.2s;position:relative}
.nav-links a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.nav-tools{display:flex;align-items:center;gap:10px}
.search-box{display:flex;align-items:center;border:1px solid var(--border);border-radius:20px;padding:4px 12px;background:var(--bg-alt);transition:border-color .2s,box-shadow .2s}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-glow)}
.search-box input{border:none;background:transparent;outline:none;color:var(--text);width:120px;font-size:14px}
.search-box input::placeholder{color:var(--text-light)}
.search-box button{border:none;background:transparent;cursor:pointer;color:var(--brand);font-size:14px;transition:transform .2s}
.search-box button:hover{transform:scale(1.2)}
.icon-btn{
border:1px solid var(--border);background:var(--bg-alt);
width:38px;height:38px;border-radius:50%;cursor:pointer;font-size:16px;
display:flex;align-items:center;justify-content:center;color:var(--text);
transition:transform .25s,background .25s,border-color .25s;
}
.icon-btn:hover{transform:rotate(20deg) scale(1.08);border-color:var(--brand);background:var(--brand-light)}
.menu-toggle{display:none;border:none;background:transparent;font-size:24px;cursor:pointer;color:var(--text);transition:transform .2s}
.menu-toggle:hover{transform:scale(1.1)}

/* Hero */
.hero{background:var(--grad);padding:56px 0 46px;position:relative;overflow:hidden}
.hero::before{
content:"";position:absolute;top:-120px;right:-80px;width:380px;height:380px;
background:radial-gradient(circle,var(--brand-glow),transparent 70%);
border-radius:50%;pointer-events:none;
}
.hero::after{
content:"";position:absolute;bottom:-140px;left:-60px;width:320px;height:320px;
background:radial-gradient(circle,rgba(255,154,181,.25),transparent 70%);
border-radius:50%;pointer-events:none;
}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;position:relative;z-index:1}
.hero h1{font-size:34px;line-height:1.35;margin-bottom:18px;color:var(--text);letter-spacing:.5px}
.hero h1 span{color:var(--brand);position:relative}
.hero h1 span::after{
content:"";position:absolute;left:0;bottom:2px;width:100%;height:8px;
background:var(--brand-glow);border-radius:4px;z-index:-1;
}
.hero p{color:var(--text-light);font-size:17px;margin-bottom:22px}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.hero-tags span{
background:var(--glass);border:1px solid var(--glass-border);
backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
padding:6px 14px;border-radius:20px;font-size:14px;color:var(--brand);font-weight:500;
transition:transform .25s,box-shadow .25s;
}
.hero-tags span:hover{transform:translateY(-3px);box-shadow:0 6px 16px var(--brand-glow)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{
display:inline-block;padding:12px 28px;border-radius:26px;font-size:15px;font-weight:600;
transition:.25s;border:2px solid var(--brand);position:relative;overflow:hidden;
}
.btn-primary{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:0 6px 18px var(--brand-glow)}
.btn-primary:hover{color:#fff;transform:translateY(-3px);box-shadow:0 10px 26px var(--brand-glow)}
.btn-outline{background:transparent;color:var(--brand)}
.btn-outline:hover{background:var(--brand);color:#fff;transform:translateY(-3px)}

/* Carousel */
.carousel{
position:relative;border-radius:var(--radius);overflow:hidden;
box-shadow:0 8px 30px rgba(232,86,122,.18);
background:var(--glass);
backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
border:1px solid var(--glass-border);
transition:transform .3s;
}
.carousel:hover{transform:translateY(-4px)}
.slide{display:none;padding:36px 30px;min-height:260px}
.slide.active{display:block;animation:fade .5s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.slide h3{color:var(--brand);font-size:20px;margin-bottom:12px}
.slide p{color:var(--text-light);font-size:15px}
.slide .big-num{font-size:44px;font-weight:800;color:var(--brand);line-height:1;margin:10px 0 6px;letter-spacing:1px}
.carousel-dots{display:flex;justify-content:center;gap:8px;padding:0 0 18px}
.carousel-dots button{
width:10px;height:10px;border-radius:50%;border:none;background:var(--border);
cursor:pointer;transition:background .25s,transform .25s,width .25s;
}
.carousel-dots button:hover{transform:scale(1.2)}
.carousel-dots button.active{background:var(--brand);width:24px;border-radius:6px}

/* Sections */
section{padding:60px 0;transition:background .3s}
.section-alt{background:var(--bg-alt)}
.section-head{text-align:center;max-width:760px;margin:0 auto 44px}
.section-head h2{font-size:28px;margin-bottom:14px;position:relative;display:inline-block;color:var(--text)}
.section-head h2::after{
content:"";display:block;width:56px;height:3px;
background:var(--grad-brand);margin:12px auto 0;border-radius:2px;
}
.section-head p{color:var(--text-light);font-size:16px}

/* Grids */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}

/* Cards */
.card{
background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
padding:26px;box-shadow:var(--shadow);
transition:transform .3s,box-shadow .3s,border-color .3s;
position:relative;overflow:hidden;
}
.card::before{
content:"";position:absolute;top:0;left:0;right:0;height:3px;
background:var(--grad-brand);transform:scaleX(0);transform-origin:left;
transition:transform .35s ease;
}
.card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(232,86,122,.16);border-color:var(--brand-light)}
.card:hover::before{transform:scaleX(1)}
.card h3{font-size:18px;margin-bottom:10px;color:var(--text)}
.card h4{font-size:16px;margin:14px 0 8px;color:var(--brand)}
.card p{color:var(--text-light);font-size:15px}
.card-icon{
width:46px;height:46px;border-radius:12px;background:var(--brand-light);
display:flex;align-items:center;justify-content:center;margin-bottom:14px;
color:var(--brand);font-size:20px;transition:transform .3s,background .3s;
}
.card:hover .card-icon{transform:rotate(-8deg) scale(1.1);background:var(--grad-brand);color:#fff}

/* Stats */
.stat{
text-align:center;padding:24px 16px;border-radius:var(--radius);
background:var(--bg);border:1px solid var(--border);
transition:transform .3s,box-shadow .3s;
}
.stat:hover{transform:translateY(-4px);box-shadow:0 10px 26px var(--brand-glow)}
.stat .num{font-size:38px;font-weight:800;color:var(--brand);letter-spacing:1px}
.stat .label{color:var(--text-light);font-size:15px;margin-top:6px}

/* Articles */
.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.article-item{
background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
padding:24px;box-shadow:var(--shadow);
transition:transform .3s,box-shadow .3s,border-color .3s;
}
.article-item:hover{transform:translateY(-5px);box-shadow:0 12px 30px rgba(232,86,122,.14);border-color:var(--brand-light)}
.article-item h3{font-size:18px;margin-bottom:8px;color:var(--text);transition:color .2s}
.article-item:hover h3{color:var(--brand)}
.article-meta{font-size:13px;color:var(--text-light);margin-bottom:10px}
.article-item p{color:var(--text-light);font-size:15px;margin-bottom:12px}
.read-more{font-size:14px;font-weight:600;display:inline-block;transition:transform .25s}
.read-more:hover{transform:translateX(4px)}

/* FAQ */
.faq-item{
border:1px solid var(--border);border-radius:12px;margin-bottom:14px;
overflow:hidden;background:var(--bg);transition:border-color .25s,box-shadow .25s;
}
.faq-item:hover{border-color:var(--brand-light)}
.faq-item.open{border-color:var(--brand);box-shadow:0 6px 20px var(--brand-glow)}
.faq-q{
width:100%;text-align:left;padding:18px 22px;background:transparent;border:none;
cursor:pointer;font-size:16px;font-weight:600;color:var(--text);
display:flex;justify-content:space-between;align-items:center;gap:16px;
transition:color .2s;font-family:inherit;
}
.faq-q:hover{color:var(--brand)}
.faq-q .arrow{transition:transform .3s;color:var(--brand)}
.faq-item.open .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 22px}
.faq-item.open .faq-a{max-height:600px;padding-bottom:18px}
.faq-a p{color:var(--text-light);font-size:15px}

/* HowTo */
.howto-step{display:flex;gap:18px;margin-bottom:26px;transition:transform .25s}
.howto-step:hover{transform:translateX(6px)}
.step-num{
flex-shrink:0;width:44px;height:44px;border-radius:50%;
background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:center;
font-weight:700;font-size:18px;box-shadow:0 4px 14px var(--brand-glow);
transition:transform .3s;
}
.howto-step:hover .step-num{transform:scale(1.1) rotate(-8deg)}
.howto-step h3{font-size:17px;margin-bottom:6px;color:var(--text)}
.howto-step p{color:var(--text-light);font-size:15px}

/* Cases */
.case-item{
background:var(--bg);border-left:4px solid var(--brand);
border-radius:0 12px 12px 0;padding:22px 26px;box-shadow:var(--shadow);
transition:transform .3s,box-shadow .3s,border-color .3s;
}
.case-item:hover{transform:translateX(6px);box-shadow:0 10px 26px rgba(232,86,122,.14);border-left-color:var(--brand-dark)}
.case-item h3{font-size:17px;margin-bottom:8px;color:var(--text)}
.case-item p{color:var(--text-light);font-size:15px}

/* Testimonials */
.testimonial{
background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
padding:26px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;
}
.testimonial:hover{transform:translateY(-5px);box-shadow:0 12px 30px rgba(232,86,122,.14)}
.testimonial .quote{font-size:15px;color:var(--text);margin-bottom:16px;font-style:italic;position:relative;padding-left:18px}
.testimonial .quote::before{content:"“";position:absolute;left:0;top:-6px;font-size:32px;color:var(--brand);opacity:.4;font-style:normal}
.testimonial .who{display:flex;align-items:center;gap:12px}
.avatar{
width:44px;height:44px;border-radius:50%;background:var(--brand-light);
display:flex;align-items:center;justify-content:center;color:var(--brand);font-weight:700;
transition:transform .3s;
}
.testimonial:hover .avatar{transform:scale(1.1)}
.who .name{font-weight:600;font-size:15px;color:var(--text)}
.who .role{font-size:13px;color:var(--text-light)}

/* News */
.news-item{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--border);transition:transform .25s}
.news-item:hover{transform:translateX(6px)}
.news-item:last-child{border-bottom:none}
.news-date{
flex-shrink:0;text-align:center;background:var(--brand-light);border-radius:10px;
padding:8px 14px;color:var(--brand);transition:background .25s,transform .25s;
}
.news-item:hover .news-date{background:var(--grad-brand);color:#fff;transform:scale(1.05)}
.news-date .d{font-size:22px;font-weight:800;line-height:1}
.news-date .m{font-size:12px}
.news-content h3{font-size:16px;margin-bottom:6px;color:var(--text);transition:color .2s}
.news-item:hover .news-content h3{color:var(--brand)}
.news-content p{color:var(--text-light);font-size:14px}

/* Breadcrumb */
.breadcrumb{font-size:14px;color:var(--text-light);padding:16px 0}
.breadcrumb a{color:var(--text-light)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span{margin:0 6px}

/* TOC */
.toc{
background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius);
padding:22px 26px;margin-bottom:30px;
backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
box-shadow:var(--shadow);
}
.toc h3{font-size:16px;margin-bottom:12px;color:var(--text)}
.toc ul{display:flex;flex-wrap:wrap;gap:10px 22px}
.toc a{font-size:14px;color:var(--text-light);transition:color .2s,padding-left .2s}
.toc a:hover{color:var(--brand);padding-left:4px}

/* Prose */
.prose p{margin-bottom:16px;color:var(--text)}
.prose h3{margin:24px 0 12px;color:var(--brand);font-size:19px}
.prose h4{margin:18px 0 10px;font-size:16px;color:var(--text)}
.prose ul,.prose ol{margin:0 0 16px 22px;color:var(--text)}
.prose ul li{list-style:disc}
.prose ol li{list-style:decimal}
.prose li{margin-bottom:8px}

/* Author box */
.author-box{
display:flex;gap:16px;background:var(--bg-alt);border:1px solid var(--border);
border-radius:var(--radius);padding:22px;margin-top:30px;
transition:box-shadow .3s,border-color .3s;
}
.author-box:hover{box-shadow:0 10px 26px rgba(232,86,122,.12);border-color:var(--brand-light)}
.author-box .avatar{width:56px;height:56px;font-size:20px;flex-shrink:0}
.author-box h4{font-size:16px;margin-bottom:4px;color:var(--text)}
.author-box p{font-size:14px;color:var(--text-light)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.contact-card{
background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
padding:24px;text-align:center;
transition:transform .3s,box-shadow .3s,border-color .3s;
}
.contact-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(232,86,122,.16);border-color:var(--brand-light)}
.contact-card .ico{font-size:26px;margin-bottom:10px;transition:transform .3s}
.contact-card:hover .ico{transform:scale(1.2) rotate(-6deg)}
.contact-card h4{font-size:15px;margin-bottom:6px;color:var(--text)}
.contact-card p{font-size:14px;color:var(--text-light)}

/* Badge */
.badge{
display:inline-block;background:var(--brand-light);color:var(--brand);
font-size:12px;padding:3px 10px;border-radius:12px;font-weight:600;margin-bottom:10px;
}

/* Footer */
.footer{background:#1f1f24;color:#cfcfcf;padding:50px 0 24px}
.footer a{color:#cfcfcf}
.footer a:hover{color:var(--brand)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;margin-bottom:36px}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer ul li{margin-bottom:10px;font-size:14px;transition:transform .2s}
.footer ul li:hover{transform:translateX(4px)}
.footer p{font-size:14px;line-height:1.9}
.footer-bottom{border-top:1px solid #333;padding-top:22px;font-size:13px;color:#999;text-align:center;line-height:1.9}

/* Back top */
.back-top{
position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
background:var(--grad-brand);color:#fff;border:none;cursor:pointer;font-size:20px;
display:none;align-items:center;justify-content:center;
box-shadow:0 4px 14px rgba(232,86,122,.4);z-index:999;
transition:transform .25s,box-shadow .25s;
}
.back-top.show{display:flex}
.back-top:hover{transform:translateY(-4px) scale(1.08);box-shadow:0 8px 22px rgba(232,86,122,.55)}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}

/* Focus accessibility */
a:focus-visible,button:focus-visible,input:focus-visible{
outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;
}

/* Responsive */
@media(max-width:960px){
.hero-inner{grid-template-columns:1fr}
.hero{padding:40px 0 34px}
.grid-3,.grid-4,.contact-grid{grid-template-columns:repeat(2,1fr)}
.article-list{grid-template-columns:1fr}
.footer-grid{grid-template-columns:repeat(2,1fr)}
.nav-links{
display:none;position:absolute;top:64px;left:0;right:0;
background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
flex-direction:column;padding:16px 20px;border-bottom:1px solid var(--border);gap:14px;
box-shadow:var(--shadow);
}
.nav-links.open{display:flex;animation:fade .3s ease}
.menu-toggle{display:block}
.search-box{display:none}
}
@media(max-width:600px){
.grid-3,.grid-4,.grid-2,.contact-grid{grid-template-columns:1fr}
.hero h1{font-size:26px}
.hero p{font-size:16px}
.footer-grid{grid-template-columns:1fr}
section{padding:44px 0}
.section-head h2{font-size:23px}
.slide{padding:28px 22px;min-height:220px}
.slide .big-num{font-size:36px}
.stat .num{font-size:32px}
.howto-step{gap:14px}
.back-top{right:16px;bottom:16px;width:42px;height:42px}
}
@media(prefers-reduced-motion:reduce){
*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
.reveal{opacity:1;transform:none}
}