:root{--brand:#c8102e;--brand-dark:#8f0b20;--brand-light:#fdecef;--ink:#1f2328;--ink-soft:#4a5158;--bg:#ffffff;--bg-soft:#f6f7f9;--line:#e5e8ec;--radius:14px;--shadow:0 6px 24px rgba(31,35,40,.08);--glass:rgba(255,255,255,.72);--glass-line:rgba(255,255,255,.6);--grad-a:#fff5f7;--grad-b:#ffffff;--grad-c:#ffe0e6}
*{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:var(--ink);background:var(--bg);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden;transition:background .3s ease,color .3s ease}
img,svg{display:block;max-width:100%}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{text-decoration:underline}
::selection{background:var(--brand);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;z-index:9999;border-radius:0 0 8px 0}
.skip-link:focus{left:8px;top:8px}
.site-header{position:sticky;top:0;z-index:1000;background:var(--glass);backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);border-bottom:1px solid var(--line);transition:background .3s ease,border-color .3s ease}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--ink);transition:transform .25s ease}
.brand:hover{text-decoration:none;transform:translateY(-1px)}
.brand-logo{width:38px;height:38px;flex:0 0 38px;transition:transform .4s cubic-bezier(.34,1.56,.64,1)}
.brand:hover .brand-logo{transform:rotate(-8deg) scale(1.06)}
.main-nav{margin-left:auto;display:flex;gap:4px}
.main-nav a{padding:8px 12px;border-radius:8px;color:var(--ink-soft);font-size:15px;position:relative;transition:background .2s ease,color .2s ease}
.main-nav a:hover{background:var(--brand-light);color:var(--brand);text-decoration:none}
.main-nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.main-nav a:hover::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:8px}
.btn-icon{width:38px;height:38px;border:1px solid var(--line);background:var(--glass);border-radius:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--ink-soft);transition:border-color .2s ease,color .2s ease,transform .2s ease,background .2s ease}
.btn-icon:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-icon:active{transform:scale(.94)}
.menu-toggle{display:none}
.search-box{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--glass);transition:border-color .2s ease,box-shadow .2s ease}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
.search-box input{border:0;outline:0;padding:8px 10px;width:150px;font-size:14px;font-family:inherit;background:transparent;color:var(--ink)}
.search-box input::placeholder{color:#9aa1a8}
.search-box button{border:0;background:var(--brand);color:#fff;padding:8px 12px;cursor:pointer;font-size:14px;font-family:inherit;transition:background .2s ease}
.search-box button:hover{background:var(--brand-dark)}
.hero{position:relative;background:linear-gradient(160deg,var(--grad-a) 0%,var(--grad-b) 55%,var(--grad-c) 100%);padding:56px 0 40px;border-bottom:1px solid var(--line);overflow:hidden;transition:background .3s ease}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;pointer-events:none;z-index:0}
.hero::before{width:420px;height:420px;background:radial-gradient(circle,#ffccd6,transparent 70%);top:-140px;right:-100px;animation:floatA 14s ease-in-out infinite}
.hero::after{width:360px;height:360px;background:radial-gradient(circle,#ffd7de,transparent 70%);bottom:-160px;left:-120px;animation:floatB 18s ease-in-out infinite}
@keyframes floatA{0%,100%{transform:translate(0,0)}50%{transform:translate(-30px,26px)}}
@keyframes floatB{0%,100%{transform:translate(0,0)}50%{transform:translate(26px,-20px)}}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.hero-eyebrow{display:inline-block;background:var(--glass);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--glass-line);color:var(--brand-dark);font-size:13px;font-weight:600;padding:5px 12px;border-radius:999px;margin-bottom:16px;box-shadow:0 2px 10px rgba(200,16,46,.08)}
.hero h1{font-size:34px;line-height:1.3;letter-spacing:.5px;margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--brand);position:relative;background:linear-gradient(120deg,var(--brand),#e0506a);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-lead{font-size:17px;color:var(--ink-soft);margin-bottom:22px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 22px;border-radius:10px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;font-family:inherit}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.98)}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;box-shadow:0 6px 18px rgba(200,16,46,.28)}
.btn-primary:hover{background:linear-gradient(135deg,var(--brand-dark),#6f0818);color:#fff;box-shadow:0 10px 26px rgba(200,16,46,.36)}
.btn-ghost{background:var(--glass);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--shadow)}
.hero-stats{display:flex;gap:28px;margin-top:28px;flex-wrap:wrap}
.stat b{display:block;font-size:26px;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums}
.stat span{font-size:13px;color:var(--ink-soft)}
.hero-art{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .5s cubic-bezier(.22,1,.36,1),box-shadow .5s ease}
.hero-art:hover{transform:translateY(-6px) scale(1.015);box-shadow:0 18px 42px rgba(31,35,40,.16)}
.section{padding:56px 0}
.section.alt{background:var(--bg-soft);transition:background .3s ease}
.section-head{max-width:820px;margin-bottom:34px}
.section-head h2{font-size:26px;margin-bottom:10px;line-height:1.4;position:relative;padding-left:14px}
.section-head h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--brand),#e0506a)}
.section-head p{color:var(--ink-soft)}
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:transform .28s cubic-bezier(.22,1,.36,1),box-shadow .28s ease,border-color .28s ease,background .3s ease}
.card:hover{box-shadow:var(--shadow);border-color:#f0c3cb;transform:translateY(-4px)}
.card h3{font-size:18px;margin-bottom:8px;transition:color .2s ease}
.card:hover h3{color:var(--brand-dark)}
.card p{color:var(--ink-soft);font-size:15px}
.card-icon{width:44px;height:44px;border-radius:12px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:var(--brand);transition:transform .3s cubic-bezier(.34,1.56,.64,1),background .3s ease}
.card:hover .card-icon{transform:rotate(-6deg) scale(1.08);background:#fbd9e0}
.article-card{display:flex;flex-direction:column;background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .28s cubic-bezier(.22,1,.36,1),box-shadow .28s ease,border-color .28s ease,background .3s ease}
.article-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:#f0c3cb}
.article-thumb{aspect-ratio:16/9;background:var(--bg-soft);overflow:hidden}
.article-thumb svg{transition:transform .55s cubic-bezier(.22,1,.36,1)}
.article-card:hover .article-thumb svg{transform:scale(1.06)}
.article-body{padding:20px;display:flex;flex-direction:column;flex:1}
.article-meta{font-size:13px;color:#8a9199;margin-bottom:8px;display:flex;gap:12px;flex-wrap:wrap}
.article-meta span{color:var(--brand);font-weight:600}
.article-body h3{font-size:17px;margin-bottom:8px;line-height:1.45;transition:color .2s ease}
.article-card:hover .article-body h3{color:var(--brand-dark)}
.article-body p{font-size:14.5px;color:var(--ink-soft);flex:1}
.read-more{margin-top:14px;font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:4px;transition:gap .2s ease,color .2s ease}
.read-more::after{content:"→";transition:transform .2s ease}
.read-more:hover{text-decoration:none;color:var(--brand-dark)}
.read-more:hover::after{transform:translateX(4px)}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease,background .3s ease}
.faq-item:hover{border-color:#f0c3cb;box-shadow:0 4px 16px rgba(200,16,46,.06)}
.faq-item summary{padding:18px 20px;cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center;transition:color .2s ease}
.faq-item summary:hover{color:var(--brand-dark)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;color:var(--brand);font-weight:400;transition:transform .25s ease;flex:0 0 auto}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-answer{padding:0 20px 20px;color:var(--ink-soft);font-size:15px;animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.howto-steps{counter-reset:step;display:flex;flex-direction:column;gap:18px}
.howto-step{background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:10px;padding:20px 22px;transition:transform .25s ease,box-shadow .25s ease,background .3s ease}
.howto-step:hover{transform:translateX(4px);box-shadow:var(--shadow)}
.howto-step h3{font-size:17px;margin-bottom:8px}
.howto-step h3::before{counter-increment:step;content:"步骤 " counter(step) "：";color:var(--brand)}
.howto-step p,.howto-step ul{color:var(--ink-soft);font-size:15px}
.howto-step ul{padding-left:20px;margin-top:6px}
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.team-card{background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-align:center;transition:transform .28s cubic-bezier(.22,1,.36,1),box-shadow .28s ease,border-color .28s ease,background .3s ease}
.team-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#f0c3cb}
.team-avatar{width:76px;height:76px;border-radius:50%;margin:0 auto 14px;overflow:hidden;transition:transform .35s cubic-bezier(.34,1.56,.64,1)}
.team-card:hover .team-avatar{transform:scale(1.08)}
.team-card h3{font-size:16px;margin-bottom:4px}
.team-card .role{font-size:13px;color:var(--brand);margin-bottom:8px}
.team-card p{font-size:13.5px;color:var(--ink-soft)}
.testimonial{background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .28s ease,box-shadow .28s ease,background .3s ease}
.testimonial:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.testimonial blockquote{font-size:15.5px;color:var(--ink-soft);margin-bottom:16px;position:relative;padding-left:22px}
.testimonial blockquote::before{content:"“";position:absolute;left:0;top:-6px;font-size:40px;color:var(--brand);opacity:.4}
.testimonial cite{font-style:normal;font-weight:600;font-size:14px}
.testimonial .who{font-size:13px;color:#8a9199}
.case-card{background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .28s cubic-bezier(.22,1,.36,1),box-shadow .28s ease,border-color .28s ease,background .3s ease}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#f0c3cb}
.case-card .case-art{aspect-ratio:16/9;background:var(--bg-soft);overflow:hidden}
.case-card .case-art svg{transition:transform .55s cubic-bezier(.22,1,.36,1)}
.case-card:hover .case-art svg{transform:scale(1.06)}
.case-card .case-body{padding:22px}
.case-card h3{font-size:17px;margin-bottom:8px;transition:color .2s ease}
.case-card:hover h3{color:var(--brand-dark)}
.case-card p{font-size:14.5px;color:var(--ink-soft)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{font-size:12.5px;background:var(--brand-light);color:var(--brand-dark);padding:4px 10px;border-radius:999px;transition:background .2s ease,color .2s ease,transform .2s ease}
.tag:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--line)}
.timeline-item{position:relative;padding-bottom:22px;transition:transform .25s ease}
.timeline-item:hover{transform:translateX(3px)}
.timeline-item::before{content:"";position:absolute;left:-22px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--brand);border:3px solid var(--bg);box-shadow:0 0 0 2px var(--brand-light);transition:transform .25s ease,box-shadow .25s ease}
.timeline-item:hover::before{transform:scale(1.25);box-shadow:0 0 0 4px var(--brand-light)}
.timeline-item h3{font-size:16px;margin-bottom:4px}
.timeline-item .year{font-size:13px;color:var(--brand);font-weight:600}
.timeline-item p{font-size:14.5px;color:var(--ink-soft)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.contact-info{background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:background .3s ease}
.contact-info dl{display:grid;grid-template-columns:88px 1fr;gap:12px 14px;font-size:15px}
.contact-info dt{color:#8a9199}
.contact-info dd{color:var(--ink);word-break:break-word}
.notice{background:var(--brand-light);border:1px solid #f6cdd4;border-radius:12px;padding:16px 20px;font-size:14.5px;color:var(--brand-dark);transition:background .3s ease}
.sitemap-list{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.sitemap-list h3{font-size:15px;margin-bottom:10px}
.sitemap-list ul{list-style:none;display:flex;flex-direction:column;gap:7px}
.sitemap-list a{font-size:14px;color:var(--ink-soft);transition:color .2s ease,padding-left .2s ease}
.sitemap-list a:hover{color:var(--brand);padding-left:3px}
.friend-links{display:flex;flex-wrap:wrap;gap:10px}
.friend-links a{font-size:14px;padding:7px 14px;border:1px solid var(--line);border-radius:8px;color:var(--ink-soft);background:var(--glass);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease}
.friend-links a:hover{border-color:var(--brand);color:var(--brand);text-decoration:none;transform:translateY(-2px);box-shadow:0 4px 14px rgba(200,16,46,.1)}
.site-footer{background:#1f2328;color:#c8ced4;padding:48px 0 24px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px;margin-bottom:32px}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:14px}
.site-footer a{color:#c8ced4;transition:color .2s ease}
.site-footer a:hover{color:#fff}
.site-footer ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.footer-bottom{border-top:1px solid #33383e;padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8a9199}
.back-top{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;border:0;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:0 6px 20px rgba(200,16,46,.35);z-index:900;transition:transform .25s ease,box-shadow .25s ease}
.back-top.show{display:flex;animation:popIn .3s ease}
.back-top:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 10px 28px rgba(200,16,46,.45)}
@keyframes popIn{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}
.breadcrumb{font-size:13.5px;color:#8a9199;padding:14px 0}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb li+li::before{content:"/";margin-right:6px;color:#c3c9cf}
.breadcrumb a{color:#8a9199}
.breadcrumb a:hover{color:var(--brand)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s cubic-bezier(.22,1,.36,1)}
.reveal.visible{opacity:1;transform:none}
.reveal:nth-child(2){transition-delay:.05s}
.reveal:nth-child(3){transition-delay:.1s}
.reveal:nth-child(4){transition-delay:.15s}
.reveal:nth-child(5){transition-delay:.2s}
.reveal:nth-child(6){transition-delay:.25s}
body.dark{--ink:#e8ebee;--ink-soft:#a8b0b8;--bg:#15181c;--bg-soft:#1b1f24;--line:#2a2f36;--brand-light:#3a1620;--shadow:0 6px 24px rgba(0,0,0,.4);--glass:rgba(27,31,36,.72);--glass-line:rgba(255,255,255,.08);--grad-a:#1e1519;--grad-b:#15181c;--grad-c:#241419}
body.dark .site-header{background:rgba(21,24,28,.82)}
body.dark .card,body.dark .article-card,body.dark .faq-item,body.dark .howto-step,body.dark .team-card,body.dark .testimonial,body.dark .case-card,body.dark .contact-info,body.dark .search-box input,body.dark .btn-icon,body.dark .btn-ghost,body.dark .friend-links a{background:#1b1f24;color:var(--ink)}
body.dark .card:hover,body.dark .article-card:hover,body.dark .case-card:hover,body.dark .team-card:hover{border-color:#5a2431}
body.dark .hero-eyebrow{color:#ffb3c0}
body.dark .hero h1 em{background:linear-gradient(120deg,#ff6b83,#e0506a);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
body.dark .timeline-item::before{border-color:#1b1f24}
body.dark .notice{background:#3a1620;border-color:#5a2431;color:#ffb3c0}
body.dark .tag{background:#3a1620;color:#ffb3c0}
body.dark .tag:hover{background:var(--brand);color:#fff}
body.dark .search-box input::placeholder{color:#6b7278}
body.dark .hero::before{background:radial-gradient(circle,rgba(200,16,46,.28),transparent 70%)}
body.dark .hero::after{background:radial-gradient(circle,rgba(224,80,106,.2),transparent 70%)}
@media(max-width:960px){
.hero-grid,.contact-grid{grid-template-columns:1fr}
.grid-3,.grid-4,.team-grid,.sitemap-list{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr}
.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);flex-direction:column;padding:12px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);animation:slideDown .25s ease}
.main-nav.open{display:flex}
.main-nav a{padding:12px 14px}
.main-nav a::after{display:none}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
body.dark .main-nav{background:rgba(27,31,36,.96)}
.menu-toggle{display:flex}
.search-box{display:none}
.hero h1{font-size:30px}
}
@media(max-width:600px){
.hero{padding:36px 0 30px}
.hero h1{font-size:26px}
.hero-lead{font-size:16px}
.grid-3,.grid-4,.team-grid,.sitemap-list,.grid-2{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.hero-stats{gap:16px 22px}
.stat b{font-size:22px}
.section{padding:40px 0}
.section-head h2{font-size:22px}
.card,.article-body,.case-body,.contact-info,.testimonial{padding:18px}
.contact-info dl{grid-template-columns:76px 1fr;font-size:14px}
.footer-bottom{flex-direction:column;gap:6px}
}
@media(prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
.reveal{opacity:1;transform:none}
}
@media print{
.site-header,.back-top,.hero-cta,.search-box,.menu-toggle,.btn-icon{display:none!important}
body{color:#000;background:#fff}
.card,.article-card,.faq-item,.howto-step,.team-card,.testimonial,.case-card{border-color:#ccc;box-shadow:none}
}