*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#f7f8fa;--card:#ffffff;--text:#1a1a2e;--sub:#5a5a72;--line:#e4e6eb;--brand:#e63946;--brand2:#1a1a2e;--accent:#f4a261;--radius:12px;--shadow:0 2px 12px rgba(0,0,0,.06);--glass:rgba(255,255,255,.72);--glass-border:rgba(255,255,255,.35)}
[data-theme="dark"]{--bg:#12121a;--card:#1c1c28;--text:#e8e8f0;--sub:#9a9ab0;--line:#2a2a3a;--shadow:0 2px 12px rgba(0,0,0,.3);--glass:rgba(28,28,40,.72);--glass-border:rgba(255,255,255,.08)}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;transition:background .3s,color .3s;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:color .2s}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
img,svg{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;z-index:100;background:var(--glass);border-bottom:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);transition:background .3s,border-color .3s}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:.5px}
.logo-mark{width:36px;height:36px;transition:transform .35s cubic-bezier(.34,1.56,.64,1)}
.logo:hover .logo-mark{transform:rotate(-8deg) scale(1.08)}
.nav-links{display:flex;gap:24px;font-size:15px}
.nav-links a{color:var(--sub);position:relative;padding:4px 0}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--brand);border-radius:2px;transition:width .28s ease}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:20px;padding:6px 14px;gap:6px;transition:border-color .25s,box-shadow .25s}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(230,57,70,.12)}
.search-box svg{color:var(--sub);flex-shrink:0}
.search-box input{border:none;background:transparent;outline:none;color:var(--text);font-size:14px;width:140px;font-family:inherit}
.search-box input::placeholder{color:var(--sub)}
.theme-btn{background:var(--bg);border:1px solid var(--line);border-radius:50%;width:38px;height:38px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text);transition:transform .3s,background .3s,border-color .3s}
.theme-btn:hover{transform:rotate(25deg) scale(1.06);border-color:var(--brand);color:var(--brand)}
.menu-btn{display:none;background:none;border:none;cursor:pointer;color:var(--text);font-size:24px;line-height:1;padding:4px}
.banner{position:relative;background:linear-gradient(135deg,#1a1a2e 0%,#2d1b3d 45%,#3d1a2e 100%);color:#fff;padding:64px 0 56px;overflow:hidden;isolation:isolate}
.banner::before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 15% 20%,rgba(230,57,70,.28),transparent 45%),radial-gradient(circle at 85% 80%,rgba(244,162,97,.22),transparent 50%);z-index:0;pointer-events:none}
.banner::after{content:"";position:absolute;top:-50%;right:-10%;width:520px;height:520px;background:radial-gradient(circle,rgba(230,57,70,.35),transparent 70%);border-radius:50%;animation:floatOrb 9s ease-in-out infinite;z-index:0;pointer-events:none}
@keyframes floatOrb{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-24px,28px) scale(1.08)}}
.banner-inner{position:relative;z-index:2}
.banner h1{font-size:clamp(26px,4vw,42px);font-weight:800;line-height:1.3;margin-bottom:16px;letter-spacing:.5px}
.banner h1 .hl{background:linear-gradient(90deg,#f4a261,#e63946);-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block}
.banner p{font-size:clamp(15px,1.8vw,18px);color:rgba(255,255,255,.85);max-width:720px;margin-bottom:24px}
.banner-stats{display:flex;gap:40px;flex-wrap:wrap;margin-top:30px}
.stat-item{text-align:left}
.stat-num{font-size:32px;font-weight:800;color:var(--accent);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-label{font-size:14px;color:rgba(255,255,255,.7)}
.section{padding:56px 0}
.section-alt{background:var(--card);transition:background .3s}
.section-head{margin-bottom:32px}
.section-head h2{font-size:clamp(22px,3vw,30px);font-weight:800;margin-bottom:10px;position:relative;padding-left:16px;letter-spacing:.3px}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;background:linear-gradient(180deg,var(--brand),var(--accent));border-radius:3px}
.section-head p{color:var(--sub);font-size:15px;max-width:760px}
.grid{display:grid;gap:20px}
.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(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s,border-color .3s,background .3s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--accent));transform:scaleX(0);transform-origin:left;transition:transform .35s ease}
.card:hover{transform:translateY(-5px);box-shadow:0 12px 32px rgba(0,0,0,.12);border-color:transparent}
.card:hover::before{transform:scaleX(1)}
.card h3{font-size:18px;font-weight:700;margin-bottom:10px;line-height:1.45}
.card p{color:var(--sub);font-size:14.5px}
.card p a{color:var(--brand);font-weight:600}
.card p a:hover{text-decoration:underline}
.icon-box{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;transition:transform .35s cubic-bezier(.34,1.56,.64,1)}
.card:hover .icon-box{transform:scale(1.1) rotate(-4deg)}
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--brand),var(--accent),var(--line))}
.tl-item{position:relative;margin-bottom:24px}
.tl-item::before{content:"";position:absolute;left:-24px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--brand);border:2px solid var(--card);box-shadow:0 0 0 3px rgba(230,57,70,.15);transition:transform .3s,box-shadow .3s}
.tl-item:hover::before{transform:scale(1.25);box-shadow:0 0 0 5px rgba(230,57,70,.22)}
.tl-year{font-weight:800;color:var(--brand);font-size:15px}
.tl-item p{color:var(--sub);font-size:14.5px}
.article-card{display:flex;flex-direction:column;gap:12px}
.article-meta{display:flex;gap:14px;font-size:13px;color:var(--sub);flex-wrap:wrap;align-items:center}
.article-card h3{font-size:17px;transition:color .25s}
.article-card:hover h3{color:var(--brand)}
.article-card .excerpt{color:var(--sub);font-size:14.5px;flex:1}
.read-more{color:var(--brand);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:4px;transition:gap .25s}
.article-card:hover .read-more{gap:8px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;background:var(--card);transition:border-color .25s,box-shadow .25s}
.faq-item:hover{border-color:rgba(230,57,70,.4)}
.faq-item.open{border-color:var(--brand);box-shadow:0 4px 16px rgba(230,57,70,.1)}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:18px 20px;font-size:16px;font-weight:600;color:var(--text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;font-family:inherit;transition:color .2s}
.faq-q:hover{color:var(--brand)}
.faq-q .arrow{transition:transform .35s ease;flex-shrink:0;color:var(--brand);font-size:14px}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;padding:0 20px;color:var(--sub);font-size:14.5px}
.faq-item.open .faq-a{max-height:520px;padding:0 20px 20px}
.steps{counter-reset:step}
.step-item{position:relative;padding:20px 20px 20px 64px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;transition:transform .3s,border-color .3s,box-shadow .3s}
.step-item:hover{transform:translateX(5px);border-color:rgba(230,57,70,.4);box-shadow:0 6px 20px rgba(0,0,0,.08)}
.step-item::before{counter-increment:step;content:counter(step);position:absolute;left:18px;top:18px;width:32px;height:32px;background:linear-gradient(135deg,var(--brand),#c1121f);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;box-shadow:0 3px 10px rgba(230,57,70,.35)}
.step-item h4{font-size:16px;margin-bottom:6px}
.step-item p{color:var(--sub);font-size:14.5px}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.contact-item{display:flex;gap:14px;align-items:flex-start;padding:20px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);transition:transform .3s,border-color .3s,box-shadow .3s}
.contact-item:hover{transform:translateY(-4px);border-color:rgba(230,57,70,.4);box-shadow:0 8px 24px rgba(0,0,0,.1)}
.contact-item .ci-icon{flex-shrink:0;width:42px;height:42px;border-radius:10px;background:var(--bg);display:flex;align-items:center;justify-content:center;transition:transform .3s}
.contact-item:hover .ci-icon{transform:scale(1.1)}
.contact-item h4{font-size:15px;margin-bottom:4px}
.contact-item p{color:var(--sub);font-size:14px;line-height:1.6}
footer{background:var(--brand2);color:rgba(255,255,255,.75);padding:48px 0 24px;font-size:14px;position:relative;overflow:hidden}
footer::before{content:"";position:absolute;top:-120px;left:-80px;width:340px;height:340px;background:radial-gradient(circle,rgba(230,57,70,.18),transparent 70%);border-radius:50%;pointer-events:none}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px;position:relative;z-index:1}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.3px}
.footer-col a{display:block;color:rgba(255,255,255,.65);margin-bottom:8px;transition:color .2s,transform .2s}
.footer-col a:hover{color:var(--accent);transform:translateX(3px)}
.footer-col p{line-height:1.8;color:rgba(255,255,255,.6)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:rgba(255,255,255,.5);position:relative;z-index:1}
.back-top{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--brand),#c1121f);color:#fff;border:none;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(230,57,70,.4);z-index:99;transition:transform .3s,box-shadow .3s}
.back-top.show{display:flex;animation:fadeInUp .35s ease}
.back-top:hover{transform:translateY(-4px) scale(1.06);box-shadow:0 8px 24px rgba(230,57,70,.55)}
@keyframes fadeInUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
.breadcrumb{font-size:13.5px;color:var(--sub);padding:16px 0;display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--brand)}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .65s cubic-bezier(.2,.7,.3,1),transform .65s cubic-bezier(.2,.7,.3,1)}
.reveal.visible{opacity:1;transform:none}
.tag{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;background:var(--bg);color:var(--sub);border:1px solid var(--line);transition:background .25s,color .25s,border-color .25s}
.card:hover .tag{background:rgba(230,57,70,.08);color:var(--brand);border-color:rgba(230,57,70,.3)}
@media(max-width:900px){
.grid-3,.grid-4,.contact-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr}
.banner{padding:52px 0 46px}
.banner-stats{gap:30px}
}
@media(max-width:640px){
.nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--card);flex-direction:column;padding:16px 20px;border-bottom:1px solid var(--line);gap:14px;box-shadow:0 12px 24px rgba(0,0,0,.12);animation:fadeInUp .25s ease}
.nav-links.open{display:flex}
.nav-links a::after{display:none}
.menu-btn{display:block}
.search-box input{width:100px}
.grid-3,.grid-4,.grid-2,.contact-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.banner-stats{gap:24px}
.stat-num{font-size:26px}
.section{padding:44px 0}
.card{padding:20px}
.step-item{padding:18px 18px 18px 58px}
.step-item::before{left:14px;top:16px;width:30px;height:30px;font-size:14px}
.back-top{right:16px;bottom:16px;width:42px;height:42px}
.footer-bottom{flex-direction:column;gap:6px}
}
@media(prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
.reveal{opacity:1;transform:none}
}