*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:#2d2d2d;background:#fafafa;line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit}
::selection{background:#e94560;color:#fff}
:focus-visible{outline:2px solid #e94560;outline-offset:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:#1a1a2e;color:#fff;padding:10px 20px;z-index:10000;border-radius:0 0 8px 0}
.skip-link:focus{left:0}
.header{position:sticky;top:0;z-index:1000;background:rgba(26,26,46,.82);backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);transition:box-shadow .3s,background .3s}
.header.scrolled{box-shadow:0 2px 24px rgba(0,0,0,.25);background:rgba(26,26,46,.95)}
.header-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:20px;font-weight:700;letter-spacing:1px;flex-shrink:0}
.logo-mark{width:36px;height:36px;background:linear-gradient(135deg,#e94560,#533483);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff;font-weight:800;box-shadow:0 4px 12px rgba(233,69,96,.35)}
.nav{display:flex;gap:4px;align-items:center}
.nav a{color:rgba(255,255,255,.8);padding:8px 14px;border-radius:6px;font-size:14px;transition:all .2s;position:relative;white-space:nowrap}
.nav a:hover{color:#fff;background:rgba(233,69,96,.25)}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
.nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.search-box{position:relative;display:flex;align-items:center}
.search-box input{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:20px;padding:7px 16px;color:#fff;font-size:13px;width:160px;outline:none;transition:all .3s}
.search-box input::placeholder{color:rgba(255,255,255,.5)}
.search-box input:focus{width:220px;background:rgba(255,255,255,.18);border-color:#e94560;box-shadow:0 0 0 3px rgba(233,69,96,.15)}
.theme-toggle{background:none;border:none;cursor:pointer;color:rgba(255,255,255,.7);font-size:18px;padding:6px;border-radius:50%;transition:all .2s;line-height:1}
.theme-toggle:hover{color:#fff;background:rgba(255,255,255,.1);transform:rotate(20deg)}
.breadcrumb{max-width:1200px;margin:0 auto;padding:14px 24px;font-size:13px;color:#888}
.breadcrumb a{color:#e94560;transition:color .2s}
.breadcrumb a:hover{color:#c73550}
.breadcrumb span{margin:0 6px;color:#ccc}
.hero{position:relative;background:linear-gradient(135deg,#1a1a2e 0%,#16213e 50%,#533483 100%);color:#fff;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 20% 80%,rgba(233,69,96,.18) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(83,52,131,.25) 0%,transparent 50%);pointer-events:none}
.hero::after{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Ccircle cx='1' cy='1' r='1' fill='rgba(255,255,255,0.04)'/%3E%3C/svg%3E");pointer-events:none}
.hero-inner{max-width:1200px;margin:0 auto;padding:80px 24px 60px;position:relative;z-index:1}
.hero h1{font-size:clamp(28px,5vw,48px);font-weight:800;line-height:1.25;margin-bottom:20px;letter-spacing:1px}
.hero h1 em{font-style:normal;color:#e94560;background:linear-gradient(135deg,#e94560,#ff8a9e);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{font-size:clamp(15px,2vw,18px);color:rgba(255,255,255,.8);max-width:720px;margin-bottom:32px;line-height:1.9}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:50px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s;border:none;position:relative;overflow:hidden}
.btn-primary{background:linear-gradient(135deg,#e94560,#c73550);color:#fff;box-shadow:0 4px 16px rgba(233,69,96,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(233,69,96,.45);filter:brightness(1.08)}
.btn-outline{background:rgba(255,255,255,.06);color:#fff;border:1.5px solid rgba(255,255,255,.4);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.14);transform:translateY(-2px)}
.hero-stats{display:flex;gap:48px;margin-top:48px;flex-wrap:wrap}
.hero-stat .num{font-size:32px;font-weight:800;color:#e94560;line-height:1.2}
.hero-stat .label{font-size:13px;color:rgba(255,255,255,.6);margin-top:4px}
.section{max-width:1200px;margin:0 auto;padding:72px 24px}
.section-title{font-size:clamp(22px,3vw,32px);font-weight:800;color:#1a1a2e;margin-bottom:12px;position:relative;display:inline-block}
.section-title::after{content:'';position:absolute;bottom:-6px;left:0;width:48px;height:3px;background:linear-gradient(90deg,#e94560,#533483);border-radius:2px}
.section-desc{color:#666;font-size:15px;max-width:680px;margin-bottom:40px;margin-top:16px;line-height:1.9}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.card{background:rgba(255,255,255,.75);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:16px;padding:28px;box-shadow:0 2px 16px rgba(0,0,0,.06);transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s;border:1px solid rgba(255,255,255,.8)}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(233,69,96,.14)}
.card-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;transition:transform .35s}
.card:hover .card-icon{transform:scale(1.1) rotate(-6deg)}
.card h3{font-size:17px;font-weight:700;color:#1a1a2e;margin-bottom:10px}
.card p{font-size:14px;color:#777;line-height:1.8}
.bg-light{background:#f5f5f8}
.bg-dark{background:#1a1a2e;color:#fff}
.bg-dark .section-title{color:#fff}
.bg-dark .section-desc{color:rgba(255,255,255,.7)}
.bg-dark .card{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.1);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.bg-dark .card h3{color:#fff}
.bg-dark .card p{color:rgba(255,255,255,.65)}
.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.article-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 2px 16px rgba(0,0,0,.06);transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s;border:1px solid #f0f0f0;display:flex;flex-direction:column}
.article-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(233,69,96,.14)}
.article-cover{height:160px;display:flex;align-items:center;justify-content:center;font-size:40px;color:#fff;position:relative;overflow:hidden}
.article-cover::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.15),transparent 60%);opacity:0;transition:opacity .35s}
.article-card:hover .article-cover::after{opacity:1}
.article-body{padding:20px 24px 24px;flex:1;display:flex;flex-direction:column}
.article-meta{font-size:12px;color:#999;margin-bottom:8px;display:flex;gap:12px}
.article-body h3{font-size:16px;font-weight:700;color:#1a1a2e;margin-bottom:8px;line-height:1.5;transition:color .2s}
.article-card:hover .article-body h3{color:#e94560}
.article-body p{font-size:13px;color:#888;line-height:1.7;flex:1}
.article-link{display:inline-flex;align-items:center;gap:4px;color:#e94560;font-size:13px;font-weight:600;margin-top:12px;transition:gap .25s}
.article-card:hover .article-link{gap:8px}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{background:rgba(255,255,255,.8);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-radius:12px;margin-bottom:12px;border:1px solid #eee;overflow:hidden;transition:all .3s}
.faq-item.active{border-color:#e94560;box-shadow:0 4px 20px rgba(233,69,96,.12)}
.faq-item:hover{border-color:rgba(233,69,96,.4)}
.faq-q{padding:18px 24px;font-size:15px;font-weight:600;color:#1a1a2e;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;user-select:none}
.faq-q::after{content:'+';font-size:20px;color:#e94560;font-weight:300;transition:transform .3s;flex-shrink:0;line-height:1}
.faq-item.active .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;padding:0 24px}
.faq-item.active .faq-a{max-height:600px;padding:0 24px 20px}
.faq-a p{font-size:14px;color:#666;line-height:1.9}
.howto-steps{max-width:860px;margin:0 auto;counter-reset:step}
.howto-step{display:flex;gap:20px;margin-bottom:28px;position:relative}
.howto-step::before{counter-increment:step;content:counter(step);width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#e94560,#533483);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex-shrink:0;box-shadow:0 4px 12px rgba(233,69,96,.3)}
.howto-step-body h3{font-size:16px;font-weight:700;color:#1a1a2e;margin-bottom:6px}
.howto-step-body p{font-size:14px;color:#777;line-height:1.8}
.case-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.case-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 2px 16px rgba(0,0,0,.06);border:1px solid #f0f0f0;transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s}
.case-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(0,0,0,.18)}
.case-cover{height:140px;display:flex;align-items:center;justify-content:center;font-size:36px;color:#fff;position:relative;overflow:hidden}
.case-cover::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.12),transparent 60%)}
.case-body{padding:20px 24px}
.case-body h3{font-size:16px;font-weight:700;color:#1a1a2e;margin-bottom:8px}
.case-body p{font-size:13px;color:#888;line-height:1.7;margin-bottom:12px}
.case-tags{display:flex;gap:8px;flex-wrap:wrap}
.case-tag{font-size:11px;padding:3px 10px;border-radius:20px;background:#f5f5f8;color:#666;transition:all .2s}
.case-card:hover .case-tag{background:rgba(233,69,96,.1);color:#e94560}
.testimonial-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.testimonial{background:rgba(255,255,255,.8);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-radius:16px;padding:28px;box-shadow:0 2px 16px rgba(0,0,0,.06);border:1px solid #f0f0f0;transition:transform .35s,box-shadow .35s}
.testimonial:hover{transform:translateY(-4px);box-shadow:0 14px 36px rgba(233,69,96,.12)}
.testimonial-text{font-size:14px;color:#555;line-height:1.9;margin-bottom:20px;font-style:italic;position:relative;padding-left:20px}
.testimonial-text::before{content:'\201C';position:absolute;left:0;top:-8px;font-size:40px;color:#e94560;opacity:.3;font-family:Georgia,serif;line-height:1}
.testimonial-author{display:flex;align-items:center;gap:12px}
.testimonial-avatar{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:16px;flex-shrink:0}
.testimonial-info .name{font-size:14px;font-weight:600;color:#1a1a2e}
.testimonial-info .role{font-size:12px;color:#999}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:20px}
.contact-item{display:flex;gap:16px;align-items:flex-start}
.contact-icon{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,#e94560,#533483);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;flex-shrink:0;box-shadow:0 4px 12px rgba(233,69,96,.25);transition:transform .3s}
.contact-item:hover .contact-icon{transform:scale(1.08) rotate(-6deg)}
.contact-item h4{font-size:14px;font-weight:700;color:#1a1a2e;margin-bottom:2px}
.contact-item p{font-size:13px;color:#777}
.contact-form{background:rgba(255,255,255,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:16px;padding:32px;box-shadow:0 2px 16px rgba(0,0,0,.06);border:1px solid #f0f0f0}
.contact-form h3{font-size:18px;font-weight:700;color:#1a1a2e;margin-bottom:20px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:600;color:#555;margin-bottom:6px}
.form-group input,.form-group textarea{width:100%;padding:10px 14px;border:1px solid #ddd;border-radius:8px;font-size:14px;font-family:inherit;outline:none;transition:border-color .2s,box-shadow .2s;background:rgba(255,255,255,.6)}
.form-group input:focus,.form-group textarea:focus{border-color:#e94560;box-shadow:0 0 0 3px rgba(233,69,96,.12)}
.form-group textarea{resize:vertical;min-height:100px}
.footer{background:#1a1a2e;color:rgba(255,255,255,.7);padding:56px 24px 0}
.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.55)}
.footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px}
.footer ul li{margin-bottom:10px}
.footer ul li a{font-size:13px;color:rgba(255,255,255,.55);transition:color .2s,padding-left .2s}
.footer ul li a:hover{color:#e94560;padding-left:4px}
.footer-bottom{max-width:1200px;margin:40px auto 0;padding:24px 0;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:12px;color:rgba(255,255,255,.4)}
.footer-bottom a{color:rgba(255,255,255,.5);transition:color .2s}
.footer-bottom a:hover{color:#e94560}
.back-to-top{position:fixed;bottom:32px;right:32px;width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#e94560,#c73550);color:#fff;border:none;cursor:pointer;font-size:20px;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .3s;z-index:999;box-shadow:0 6px 20px rgba(233,69,96,.45)}
.back-to-top.visible{opacity:1;visibility:visible}
.back-to-top:hover{transform:translateY(-4px) scale(1.06)}
.sitemap-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:24px}
.sitemap-col h4{font-size:14px;font-weight:700;color:#1a1a2e;margin-bottom:12px}
.sitemap-col ul li{margin-bottom:8px}
.sitemap-col ul li a{font-size:13px;color:#777;transition:color .2s,padding-left .2s}
.sitemap-col ul li a:hover{color:#e94560;padding-left:4px}
.fade-in{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.8,.2,1)}
.fade-in.visible{opacity:1;transform:translateY(0)}
@media(max-width:900px){
.contact-grid{grid-template-columns:1fr}
.footer-inner{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
.nav{display:none;position:absolute;top:68px;left:0;right:0;background:rgba(26,26,46,.98);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);flex-direction:column;padding:16px;gap:4px;border-top:1px solid rgba(255,255,255,.1);box-shadow:0 12px 32px rgba(0,0,0,.3)}
.nav.open{display:flex}
.nav a{padding:12px 16px;width:100%}
.nav-toggle{display:flex}
.search-box input{width:120px}
.search-box input:focus{width:160px}
.hero-inner{padding:56px 24px 40px}
.hero-stats{gap:28px}
.hero-stat .num{font-size:26px}
.section{padding:48px 20px}
.footer-inner{grid-template-columns:1fr}
.footer-bottom{flex-direction:column;text-align:center}
.back-to-top{bottom:20px;right:20px}
}
@media(max-width:480px){
.hero h1{font-size:24px}
.hero-actions{flex-direction:column}
.btn{width:100%;justify-content:center}
.cards{grid-template-columns:1fr}
.article-grid{grid-template-columns:1fr}
.header-inner{padding:0 16px}
.breadcrumb{padding:12px 16px}
}
@media(prefers-reduced-motion:reduce){
*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
.fade-in{opacity:1;transform:none}
}
body.dark{background:#12121a;color:#c8c8d0}
body.dark .card,body.dark .article-card,body.dark .faq-item,body.dark .case-card,body.dark .testimonial,body.dark .contact-form{background:rgba(30,30,46,.85);border-color:#2a2a3e;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
body.dark .card h3,body.dark .article-body h3,body.dark .faq-q,body.dark .case-body h3,body.dark .testimonial-info .name,body.dark .contact-form h3,body.dark .sitemap-col h4,body.dark .contact-item h4{color:#e8e8f0}
body.dark .card p,body.dark .article-body p,body.dark .faq-a p,body.dark .case-body p,body.dark .testimonial-text,body.dark .contact-item p,body.dark .section-desc{color:#9a9ab0}
body.dark .section-title{color:#e8e8f0}
body.dark .bg-light{background:#16161f}
body.dark .breadcrumb{color:#6a6a80}
body.dark .breadcrumb a{color:#e94560}
body.dark .form-group input,body.dark .form-group textarea{background:#16161f;border-color:#2a2a3e;color:#c8c8d0}
body.dark .sitemap-col ul li a{color:#9a9ab0}
body.dark .sitemap-col ul li a:hover{color:#e94560}
body.dark .case-tag{background:#25253a;color:#9a9ab0}
body.dark .case-card:hover .case-tag{background:rgba(233,69,96,.18);color:#e94560}
body.dark .footer{background:#0d0d14}