/* roulang page: index */
:root{--ink:#19352f;--ink-2:#284b42;--paper:#f7f5ef;--cream:#fffdf8;--mist:#e7eee9;--copper:#b77b43;--amber:#d39a59;--text:#27302d;--muted:#7a817b;--line:#d9dfd8;--radius:16px;--shadow:0 14px 36px rgba(25,53,47,.09);--ease:240ms ease}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--paper);line-height:1.8;font-size:16px}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;width:100%;object-fit:cover}button,input,textarea{font:inherit}button{cursor:pointer;border:0}.container{width:min(1180px,calc(100% - 48px));margin:auto}.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--copper);font-size:13px;font-weight:700;letter-spacing:.14em}.eyebrow:before{content:"";width:25px;height:1px;background:var(--copper)}h1,h2,h3{color:var(--ink);line-height:1.28;letter-spacing:-.025em}h1{font-size:clamp(38px,5vw,62px);font-weight:800}h2{font-size:clamp(29px,3.5vw,42px);font-weight:750}h3{font-size:20px}.section{padding:104px 0}.section-head{display:flex;justify-content:space-between;gap:35px;align-items:end;margin-bottom:46px}.section-head p{max-width:510px;color:var(--muted)}.btn{min-height:46px;padding:10px 20px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;transition:var(--ease);border:1px solid transparent}.btn-primary{background:var(--ink);color:#fff}.btn-primary:hover{background:var(--ink-2);transform:translateY(-2px);box-shadow:0 8px 18px #19352f2b}.btn-light{border-color:#cfd8d0;color:var(--ink);background:var(--cream)}.btn-light:hover{border-color:var(--copper);color:var(--copper);transform:translateY(-2px)}.btn:active{transform:translateY(1px)}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #d39a5980;outline-offset:3px}
.site-header{height:78px;display:flex;align-items:center;border-bottom:1px solid #dfe5df;background:#f7f5efee;position:sticky;top:0;z-index:10;backdrop-filter:blur(10px)}.nav{display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-weight:800;font-size:17px;white-space:nowrap}.brand-mark{width:31px;height:31px;border:1px solid var(--copper);position:relative;display:grid;place-items:center;color:var(--copper);font-size:14px}.brand-mark:after{content:"";position:absolute;inset:5px;border:1px solid var(--copper)}.nav-links{display:flex;align-items:center;gap:30px;font-size:14px;color:#54615b}.nav-links a{padding:25px 2px;position:relative}.nav-links a:hover,.nav-links a.active{color:var(--ink)}.nav-links a.active:after{content:"";position:absolute;bottom:17px;left:0;right:0;margin:auto;width:22px;height:2px;background:var(--copper)}.menu-btn{display:none;background:none;color:var(--ink);font-size:24px}
.hero{padding:72px 0 0;background:var(--paper);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1fr 1.03fr;gap:68px;align-items:center}.hero-copy p{font-size:18px;color:#5e6862;max-width:570px;margin:25px 0 30px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:38px}.tag{border:1px solid #cfd9d1;color:var(--ink-2);padding:4px 11px;border-radius:30px;font-size:13px;background:#fbfaf5}.hero-visual{position:relative;padding:18px 0 36px 28px}.hero-image{height:480px;border-radius:18px 18px 4px 18px;box-shadow:var(--shadow);background:#ced8d0}.hero-note{position:absolute;background:var(--cream);padding:15px 18px;box-shadow:var(--shadow);border:1px solid #e0e2d9}.note-one{left:-3px;bottom:61px;width:165px}.note-two{right:-15px;top:47px;width:145px}.hero-note small{display:block;color:var(--copper);font-size:12px;margin-bottom:4px}.hero-note strong{color:var(--ink);font-size:15px}.signal-bar{margin-top:55px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(3,1fr)}.signal{padding:20px 24px;border-right:1px solid var(--line);font-size:14px;color:#626e67}.signal:last-child{border:0}.signal b{color:var(--ink);display:block;font-size:18px;margin-bottom:2px}
.guide{background:var(--cream)}.guide-layout{display:grid;grid-template-columns:220px 1fr;gap:70px}.guide-index{font-size:64px;color:#d7ded6;font-weight:800;line-height:1}.guide-index span{display:block;font-size:17px;color:var(--ink);margin-top:15px}.guide-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}.guide-card{border:1px solid var(--line);border-radius:var(--radius);padding:27px;background:#faf9f4;min-height:205px;transition:var(--ease);position:relative;overflow:hidden}.guide-card:hover,.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.guide-card.large{grid-row:span 2;padding:0}.guide-card.large img{height:240px}.guide-card.large .guide-body{padding:22px}.card-no{color:var(--copper);font-weight:700;font-size:13px}.guide-card h3{margin:11px 0 8px}.guide-card p{font-size:14px;color:var(--muted);line-height:1.7}.arrow-link{display:inline-block;margin-top:14px;color:var(--ink);font-weight:700;font-size:14px}.arrow-link:after{content:"　→";color:var(--copper)}
.tempo{background:var(--mist)}.timeline{display:grid;grid-template-columns:repeat(4,1fr);position:relative;gap:25px}.timeline:before{content:"";height:1px;background:#bdc9c0;position:absolute;top:18px;left:10%;right:10%}.stage{position:relative;padding-top:52px}.stage-dot{position:absolute;top:10px;left:0;width:17px;height:17px;border-radius:50%;background:var(--copper);border:5px solid var(--mist);box-shadow:0 0 0 1px var(--copper)}.stage-no{color:var(--copper);font-weight:700;font-size:13px}.stage h3{margin:7px 0}.stage p{font-size:14px;color:#67736c}.stage .tag{display:inline-block;margin-top:14px}
.feature-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr;grid-template-rows:auto auto;gap:18px}.feature-card{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--cream);transition:var(--ease)}.feature-card.wide{grid-row:span 2}.feature-card.wide img{height:390px}.feature-card.tall img{height:220px}.feature-card.text{padding:25px}.feature-card .feature-body{padding:20px 23px}.feature-card p{font-size:14px;color:var(--muted);line-height:1.7;margin-top:6px}.feature-label{color:var(--copper);font-size:12px;font-weight:700;letter-spacing:.08em}
.updates{background:#f0f3ed}.updates-layout{display:grid;grid-template-columns:245px 1fr;gap:66px}.updates-intro p{color:var(--muted);font-size:14px;margin-top:18px}.post-list{border-top:1px solid var(--line)}.post{display:grid;grid-template-columns:105px 1fr auto;gap:22px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line);transition:var(--ease)}.post:hover{padding-left:8px;background:#ffffff55}.post-thumb{height:72px;border-radius:9px}.post-meta{font-size:12px;color:var(--copper);margin-bottom:4px}.post h3{font-size:18px}.post p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.post-arrow{font-size:22px;color:var(--copper)}.empty{padding:35px 0;color:var(--muted);border-bottom:1px solid var(--line)}
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}.faq-intro p{color:var(--muted);margin-top:18px}.faq-item{border-top:1px solid var(--line)}.faq-q{width:100%;background:none;text-align:left;padding:20px 0;display:flex;justify-content:space-between;gap:20px;color:var(--ink);font-weight:700;font-size:17px}.faq-q span:last-child{color:var(--copper);font-size:24px;line-height:1;transition:var(--ease)}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s ease}.faq-item.open .faq-a{max-height:180px;padding:0 40px 20px 0}
.cta{background:var(--ink);color:#fff;padding:70px 0}.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.cta h2{color:#fff}.cta p{color:#bdcbc3;margin-top:15px}.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:flex;flex-direction:column;gap:5px}.field.full{grid-column:1/-1}.field label{font-size:13px;color:#c5d0c9}.field input,.field textarea{background:#24443b;border:1px solid #547067;color:#fff;border-radius:8px;padding:11px 13px;min-height:46px}.field textarea{min-height:82px;resize:vertical}.field input:focus,.field textarea:focus{border-color:var(--amber)}.form-note{grid-column:1/-1;color:#91a79d;font-size:12px}.site-footer{background:#142b27;color:#c8d2cc;padding:50px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px;padding-bottom:42px}.footer-brand{color:#fff;font-size:18px;font-weight:800}.footer-summary{color:#9caf a5;color:#9caf a5;margin-top:15px;font-size:14px;max-width:350px}.footer-title{color:#fff;font-weight:700;margin-bottom:12px}.footer-links{display:grid;gap:7px;font-size:14px;color:#aabbb2}.footer-links a:hover{color:var(--amber)}.copyright{border-top:1px solid #345047;padding-top:18px;color:#80968c;font-size:12px;display:flex;justify-content:space-between}
.reveal{animation:rise .7s both}@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@media(max-width:1024px){.hero-grid{gap:35px}.guide-layout,.updates-layout{gap:35px}.section{padding:78px 0}.nav-links{gap:18px}}
@media(max-width:768px){.container{width:min(100% - 34px,620px)}.nav{height:78px}.menu-btn{display:block}.nav-links{display:none;position:absolute;top:78px;left:0;right:0;background:var(--cream);padding:15px 22px 25px;flex-direction:column;align-items:stretch;gap:0;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.nav-links.show{display:flex}.nav-links a{padding:13px 0;border-bottom:1px solid var(--line)}.nav-links a.active:after{left:0;right:auto;bottom:0}.nav .btn{display:none}.hero{padding-top:44px}.hero-grid,.faq-wrap,.cta-grid{grid-template-columns:1fr}.hero-visual{padding:25px 10px 35px}.hero-image{height:360px}.signal-bar{grid-template-columns:1fr}.signal{border-right:0;border-bottom:1px solid var(--line)}.guide-layout,.updates-layout{grid-template-columns:1fr}.guide-grid{grid-template-columns:1fr}.guide-card.large{grid-row:auto}.timeline{grid-template-columns:1fr;gap:12px;padding-left:35px}.timeline:before{top:18px;bottom:18px;left:8px;width:1px;height:auto;right:auto}.stage{padding-top:0;padding-bottom:17px}.stage-dot{left:-35px;top:5px}.feature-grid{grid-template-columns:1fr}.feature-card.wide{grid-row:auto}.feature-card.wide img{height:280px}.section-head{display:block}.section-head p{margin-top:15px}.contact-form{grid-template-columns:1fr}.field.full,.form-note{grid-column:auto}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
@media(max-width:480px){h1{font-size:34px}.section{padding:62px 0}.hero-actions .btn{width:100%}.hero-note{transform:scale(.9);transform-origin:bottom left}.note-two{right:-4px;top:37px}.post{grid-template-columns:1fr auto}.post-thumb{display:none}.post h3{font-size:16px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}}

/* roulang page: article */
:root{
  --ink:#19352f;
  --ink-2:#284b42;
  --paper:#f7f5ef;
  --cream:#fffdf8;
  --mist:#e7eee9;
  --copper:#b77b43;
  --amber:#d39a59;
  --text:#27302d;
  --muted:#7a817b;
  --line:#d9dfd8;
  --radius:16px;
  --shadow:0 14px 36px rgba(25,53,47,.09);
  --ease:240ms ease
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  background:var(--paper);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8
}
a{color:inherit;text-decoration:none}
a:hover{color:var(--copper)}
img{display:block;width:100%;max-width:100%;object-fit:cover}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{color:var(--ink);line-height:1.3}
h1{font-size:clamp(34px,4.5vw,56px);font-weight:800;letter-spacing:-.035em}
h2{font-size:clamp(28px,3vw,38px);font-weight:800}
h3{font-size:20px;font-weight:750}
.container{width:min(1180px,calc(100% - 48px));margin:auto}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;color:var(--copper);
  font-size:13px;font-weight:700;letter-spacing:.14em
}
.eyebrow:before{content:"";width:25px;height:1px;background:var(--copper)}
.btn{
  min-height:46px;padding:10px 20px;border-radius:9px;display:inline-flex;
  align-items:center;justify-content:center;gap:9px;font-weight:700;
  transition:var(--ease);border:1px solid transparent
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-2);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(25,53,47,.17)}
.btn-light{border-color:#cfd8d0;color:var(--ink);background:var(--cream)}
.btn-light:hover{border-color:var(--copper);color:var(--copper);transform:translateY(-2px)}
.btn:active{transform:translateY(1px)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(211,154,89,.5);outline-offset:3px
}
.site-header{
  height:78px;display:flex;align-items:center;border-bottom:1px solid #dfe5df;
  background:rgba(247,245,239,.94);position:sticky;top:0;z-index:20;
  backdrop-filter:blur(10px)
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-weight:800;font-size:17px;white-space:nowrap}
.brand-mark{
  width:31px;height:31px;border:1px solid var(--copper);position:relative;
  display:grid;place-items:center;color:var(--copper);font-size:14px
}
.brand-mark:after{content:"";position:absolute;inset:5px;border:1px solid var(--copper)}
.nav-links{display:flex;align-items:center;gap:30px;font-size:14px;color:#54615b}
.nav-links a{padding:25px 2px;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-links a.active:after{
  content:"";position:absolute;bottom:17px;left:0;right:0;margin:auto;
  width:22px;height:2px;background:var(--copper)
}
.menu-btn{display:none;background:none;color:var(--ink);font-size:24px;min-width:44px;min-height:44px}
.article-hero{
  padding:70px 0 76px;
  background:var(--cream);
  border-bottom:1px solid var(--line)
}
.breadcrumb{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  color:var(--muted);font-size:13px;margin-bottom:30px
}
.breadcrumb span:last-child{color:var(--ink);max-width:480px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.breadcrumb .slash{color:var(--copper)}
.article-head{
  display:grid;grid-template-columns:minmax(0,1fr) 390px;
  gap:70px;align-items:center
}
.article-title{max-width:760px;margin:14px 0 22px}
.article-summary{
  max-width:735px;color:#657069;font-size:17px;line-height:1.85;
  margin-bottom:26px
}
.article-meta{display:flex;align-items:center;gap:15px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.meta-divider{width:4px;height:4px;border-radius:50%;background:var(--copper)}
.article-cover{
  aspect-ratio:3/2;border-radius:18px 18px 4px 18px;
  overflow:hidden;background:#d5ded8;box-shadow:var(--shadow)
}
.article-cover img{height:100%;transition:transform .45s ease}
.article-cover:hover img{transform:scale(1.035)}
.article-back{margin-top:30px;display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-weight:700;font-size:14px}
.article-back:before{content:"←";color:var(--copper);font-size:18px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,800px) 250px;
  gap:72px;align-items:start;padding:88px 0 110px
}
.article-content{
  min-width:0;color:#39443f;font-size:17px;line-height:1.95
}
.article-content>*{max-width:100%}
.article-content h2{
  margin:58px 0 20px;padding-top:12px;border-top:1px solid var(--line);
  font-size:30px
}
.article-content h3{margin:36px 0 12px;font-size:21px}
.article-content p{margin:0 0 23px}
.article-content ul,.article-content ol{padding-left:1.5em;margin:0 0 25px}
.article-content li{padding-left:6px;margin:5px 0}
.article-content blockquote{
  margin:34px 0;padding:22px 26px;border-left:3px solid var(--copper);
  background:#edf2ed;color:var(--ink-2);font-size:18px
}
.article-content img{border-radius:12px;margin:30px auto 8px}
.article-content figure{margin:34px 0}
.article-content figcaption{text-align:center;color:var(--muted);font-size:13px}
.article-content a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--copper);text-underline-offset:4px}
.article-content hr{border:0;border-top:1px solid var(--line);margin:42px 0}
.table-wrap{overflow-x:auto;margin:28px 0}
.article-content table{width:100%;min-width:560px;border-collapse:collapse;background:var(--cream);font-size:15px}
.article-content th,.article-content td{padding:12px 15px;text-align:left;border-bottom:1px solid var(--line)}
.article-content th{color:var(--ink);background:var(--mist);font-weight:750}
.article-aside{position:sticky;top:110px}
.aside-card{
  border:1px solid var(--line);border-radius:14px;background:var(--cream);
  padding:23px 22px
}
.aside-title{display:flex;align-items:center;gap:9px;color:var(--ink);font-weight:800;margin-bottom:15px}
.aside-title:before{content:"";width:4px;height:18px;background:var(--copper);border-radius:4px}
.aside-card p{color:var(--muted);font-size:14px;line-height:1.75;margin-bottom:18px}
.aside-link{
  display:flex;justify-content:space-between;gap:10px;padding:12px 0;
  border-top:1px solid var(--line);font-size:14px;color:var(--ink)
}
.aside-link span{color:var(--copper)}
.article-end{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;border-top:1px solid var(--line);padding-top:26px;margin-top:48px
}
.article-tags{display:flex;gap:8px;flex-wrap:wrap}
.tag{
  border:1px solid #cfd9d1;color:var(--ink-2);padding:4px 11px;
  border-radius:30px;font-size:13px;background:#fbfaf5
}
.empty-state{
  padding:70px 30px;border:1px dashed #c6d1c9;border-radius:16px;
  background:var(--cream);text-align:center
}
.empty-icon{
  width:54px;height:54px;border:1px solid var(--copper);color:var(--copper);
  display:grid;place-items:center;margin:0 auto 20px;border-radius:12px;font-size:22px
}
.empty-state h2{font-size:28px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:24px}
.cta{background:var(--ink);color:#fff;padding:68px 0}
.cta-grid{display:grid;grid-template-columns:1fr auto;gap:50px;align-items:center}
.cta h2{color:#fff;margin-bottom:12px}
.cta p{color:#bdcbc3;margin:0;max-width:650px}
.cta .btn-light{background:#f8f6ef;border-color:#f8f6ef}
.site-footer{background:#122b26;color:#d7e0da;padding:60px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr .7fr .7fr;gap:60px}
.footer-brand{font-size:19px;font-weight:800;color:#fff;margin-bottom:12px}
.footer-summary{color:#9eafa6;font-size:14px;max-width:390px;margin:0;line-height:1.8}
.footer-title{color:#fff;font-size:14px;font-weight:800;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:8px;color:#aebdb5;font-size:14px}
.footer-links a{transition:var(--ease)}
.footer-links a:hover{color:#e0aa6a;transform:translateX(3px)}
.copyright{
  display:flex;justify-content:space-between;gap:20px;border-top:1px solid #315047;
  margin-top:48px;padding-top:18px;color:#81948a;font-size:12px
}
@media(max-width:1024px){
  .article-head{grid-template-columns:minmax(0,1fr) 330px;gap:38px}
  .article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:38px}
}
@media(max-width:768px){
  .container{width:min(100% - 36px,620px)}
  .site-header{height:68px}
  .nav-links{
    display:none;position:absolute;left:18px;right:18px;top:76px;
    flex-direction:column;align-items:stretch;gap:0;padding:12px 20px;
    background:var(--cream);border:1px solid var(--line);border-radius:14px;
    box-shadow:var(--shadow)
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 2px;border-bottom:1px solid var(--line)}
  .nav-links a:last-child{border-bottom:0}
  .nav-links a.active:after{left:auto;right:2px;bottom:0}
  .nav>.btn{display:none}
  .menu-btn{display:block}
  .article-hero{padding:48px 0 52px}
  .article-head{display:flex;flex-direction:column;align-items:stretch;gap:32px}
  .article-cover{max-width:100%}
  .article-layout{display:block;padding:56px 0 72px}
  .article-aside{position:static;margin-bottom:42px}
  .aside-card{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
  .aside-title{margin:0}
  .aside-card p{margin:0;flex:1;min-width:220px}
  .aside-link{padding:7px 0;border-top:0}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1.2fr .8fr;gap:35px}
  .footer-grid>div:first-child{grid-column:1/-1}
}
@media(max-width:520px){
  .container{width:calc(100% - 30px)}
  h1{font-size:34px}
  .article-title{font-size:32px}
  .article-summary{font-size:16px}
  .article-content{font-size:16px}
  .article-content h2{font-size:26px;margin-top:45px}
  .article-end{align-items:flex-start;flex-direction:column}
  .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
  .copyright{align-items:flex-start;flex-direction:column;gap:5px}
}

/* roulang page: category1 */
:root{--ink:#19352f;--ink2:#284b42;--paper:#f7f5ef;--cream:#fffdf8;--mist:#e7eee9;--copper:#b77b43;--amber:#d39a59;--text:#27302d;--muted:#7a817b;--line:#d9dfd8;--radius:16px;--shadow:0 14px 36px rgba(25,53,47,.09);--ease:240ms ease}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--paper);line-height:1.8;font-size:16px}a{color:inherit;text-decoration:none}img{display:block;width:100%;max-width:100%;object-fit:cover}button,input,textarea{font:inherit}button{cursor:pointer;border:0}.container{width:min(1180px,calc(100% - 48px));margin:auto}
.site-header{height:78px;display:flex;align-items:center;border-bottom:1px solid #dfe5df;background:#f7f5efee;position:sticky;top:0;z-index:10;backdrop-filter:blur(10px)}.nav{display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-weight:800;font-size:17px;white-space:nowrap}.brand-mark{width:31px;height:31px;border:1px solid var(--copper);position:relative;display:grid;place-items:center;color:var(--copper);font-size:14px}.brand-mark:after{content:"";position:absolute;inset:5px;border:1px solid var(--copper)}.nav-links{display:flex;align-items:center;gap:30px;font-size:14px;color:#54615b}.nav-links a{padding:25px 2px;position:relative}.nav-links a:hover,.nav-links a.active{color:var(--ink)}.nav-links a.active:after{content:"";position:absolute;bottom:17px;left:0;right:0;margin:auto;width:22px;height:2px;background:var(--copper)}.menu-btn{display:none;background:none;color:var(--ink);font-size:24px}
.btn{min-height:46px;padding:10px 20px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;transition:var(--ease);border:1px solid transparent}.btn-primary{background:var(--ink);color:#fff}.btn-primary:hover{background:var(--ink2);transform:translateY(-2px);box-shadow:0 8px 18px #19352f2b}.btn-light{border-color:#cfd8d0;color:var(--ink);background:var(--cream)}.btn-light:hover{border-color:var(--copper);color:var(--copper);transform:translateY(-2px)}.btn:active{transform:translateY(1px)}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #d39a5980;outline-offset:3px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--copper);font-size:13px;font-weight:700;letter-spacing:.14em}.eyebrow:before{content:"";width:25px;height:1px;background:var(--copper)}h1,h2,h3{color:var(--ink);line-height:1.3;margin-top:0}h1{font-size:clamp(34px,5vw,56px);letter-spacing:-.04em;margin:18px 0}h2{font-size:clamp(28px,3.5vw,38px);letter-spacing:-.025em}h3{font-size:20px}.section{padding:100px 0}.section-head{display:flex;justify-content:space-between;gap:35px;align-items:end;margin-bottom:42px}.section-head p{max-width:520px;color:var(--muted);margin:0}
.inner-hero{padding:72px 0 78px;background:var(--mist)}.inner-grid{display:grid;grid-template-columns:1fr .9fr;gap:70px;align-items:center}.crumb{font-size:13px;color:var(--muted);margin-bottom:22px}.crumb a{color:var(--ink);font-weight:700}.inner-copy p{max-width:600px;color:#5e6862;font-size:17px}.inner-image{height:330px;border-radius:18px 18px 4px 18px;box-shadow:var(--shadow)}
.index-layout{display:grid;grid-template-columns:210px 1fr;gap:70px}.index-number{font-size:76px;line-height:1;color:var(--copper);font-weight:800;letter-spacing:-.08em}.index-title{position:sticky;top:120px}.index-title p{color:var(--muted);font-size:14px}.index-list{border-top:1px solid var(--line)}.index-item{display:grid;grid-template-columns:45px 1fr auto;gap:20px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line);transition:var(--ease)}.index-item:hover{padding-left:8px;background:#faf9f4}.index-item b{color:var(--copper);font-size:13px}.index-item p{margin:5px 0 0;color:var(--muted);font-size:14px}.index-arrow{font-size:23px;color:var(--copper)}
.feature{background:var(--cream)}.split{display:grid;grid-template-columns:1fr 1fr;gap:25px;align-items:stretch}.split-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#faf9f4;transition:var(--ease)}.split-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.split-card img{height:270px}.split-body{padding:28px}.split-body p{color:var(--muted);margin:12px 0 18px}.tags{display:flex;flex-wrap:wrap;gap:8px}.tag{border:1px solid #cfd9d1;color:var(--ink2);padding:4px 11px;border-radius:30px;font-size:13px;background:#fbfaf5}
.points{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}.point{padding:28px 25px 28px 0;border-bottom:1px solid var(--line);position:relative}.point:not(:nth-child(3n+1)){padding-left:25px;border-left:1px solid var(--line)}.point-no{color:var(--copper);font-weight:800;font-size:13px}.point h3{margin:10px 0 7px}.point p{color:var(--muted);font-size:14px;margin:0}
.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:80px}.faq-intro p{color:var(--muted)}.faq-item{border-top:1px solid var(--line)}.faq-q{width:100%;background:none;text-align:left;padding:20px 0;display:flex;justify-content:space-between;gap:20px;color:var(--ink);font-weight:700;font-size:17px}.faq-q span:last-child{color:var(--copper);font-size:24px;line-height:1;transition:var(--ease)}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s ease}.faq-item.open .faq-a{max-height:180px;padding:0 40px 20px 0}
.cta{background:var(--ink);color:#fff;padding:68px 0}.cta-grid{display:grid;grid-template-columns:1fr .9fr;gap:70px;align-items:center}.cta h2{color:#fff}.cta p{color:#bdcbc3;margin:15px 0 0}.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field label{display:block;color:#bdcbc3;font-size:13px;margin-bottom:5px}.field input,.field textarea{width:100%;background:#24443b;border:1px solid #547067;color:#fff;border-radius:8px;padding:11px 13px;min-height:46px}.field textarea{min-height:80px;resize:vertical}.field.full{grid-column:1/-1}.form-note{grid-column:1/-1;color:#9eb1a7;font-size:12px;margin:0}.site-footer{background:#122b26;color:#d8e1da;padding:55px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr .7fr .7fr;gap:50px}.footer-brand{font-size:20px;font-weight:800;color:#fff}.footer-summary{color:#9eb1a7;max-width:390px;font-size:14px}.footer-title{color:var(--amber);font-size:13px;font-weight:700;margin-bottom:13px}.footer-links{display:grid;gap:8px;color:#c1cec6;font-size:14px}.footer-links a:hover{color:#fff}.copyright{border-top:1px solid #345148;margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;color:#82978d;font-size:12px}
@media(max-width:1024px){.inner-grid{gap:35px}.index-layout{gap:40px}.section{padding:78px 0}.cta-grid{gap:35px}}
@media(max-width:768px){.container{width:min(100% - 34px,600px)}.site-header{height:68px}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--cream);padding:15px 22px 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}.nav-links.show{display:flex}.nav-links a{padding:13px 0}.nav-links a.active:after{left:0;right:auto;bottom:7px}.nav>.btn{display:none}.menu-btn{display:block}.brand{font-size:15px}.inner-grid,.split,.faq-wrap,.cta-grid{grid-template-columns:1fr}.inner-hero{padding:48px 0 55px}.inner-image{height:260px}.index-layout{grid-template-columns:1fr;gap:28px}.index-title{position:static}.index-number{font-size:55px}.points{grid-template-columns:1fr}.point:not(:nth-child(3n+1)){padding-left:0;border-left:0}.section{padding:68px 0}.section-head{display:block;margin-bottom:28px}.section-head p{margin-top:14px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-bottom:5px}}
@media(max-width:520px){h1{font-size:34px}.inner-copy p{font-size:16px}.index-item{grid-template-columns:35px 1fr 20px;gap:12px}.split-card img{height:220px}.contact-form{grid-template-columns:1fr}.field.full,.form-note{grid-column:auto}.cta .btn{width:100%}.footer-grid{grid-template-columns:1fr}}