/* roulang page: index */
:root{
  --ink:#202426;--muted:#697276;--paper:#f7f5f0;--white:#fff;
  --line:#e4e2dc;--orange:#ee6948;--orange-dark:#d95335;
  --teal:#198d82;--teal-soft:#e4f3ef;--sand:#eee8da;
  --radius:14px;--shadow:0 14px 38px rgba(31,38,37,.08);
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"思源黑体","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.site-header{height:76px;background:rgba(247,245,240,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.header-inner{height:100%;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;min-width:220px;font-weight:800;letter-spacing:.02em}
.logo-mark{width:32px;height:32px;border-radius:9px;background:var(--orange);color:#fff;display:grid;place-items:center;font-size:18px}
.logo small{display:block;color:var(--muted);font-size:10px;letter-spacing:.08em;font-weight:500}
.nav{display:flex;align-items:center;gap:5px;flex:1}
.nav a{padding:9px 13px;border-radius:8px;color:#50595b;font-size:14px;transition:.2s}
.nav a:hover,.nav a:focus,.nav a.active{color:var(--orange-dark);background:#fbe8e1;outline:none}
.header-action{white-space:nowrap}
.menu-toggle{display:none;border:0;background:none;font-size:25px;color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;padding:12px 20px;font-weight:700;font-size:14px;transition:.2s;min-height:45px}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 7px 18px rgba(238,105,72,.22);outline:none}
.btn-outline{border-color:#c9cbc6;color:var(--ink);background:transparent}
.btn-outline:hover,.btn-outline:focus{border-color:var(--teal);color:var(--teal);outline:none}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
h1,h2,h3{line-height:1.2;letter-spacing:-.035em}
h1{font-size:clamp(42px,6vw,76px);max-width:760px}
h2{font-size:clamp(30px,4vw,48px)}
h3{font-size:20px}
.lead{color:var(--muted);font-size:18px;max-width:650px;line-height:1.8}
.hero{min-height:590px;display:flex;align-items:center;position:relative;overflow:hidden;background:#ebe7dc}
.hero:after{content:"";position:absolute;right:-10%;top:-25%;width:58%;height:150%;background:var(--teal);opacity:.09;transform:rotate(17deg)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:65px;position:relative;z-index:1;padding:75px 0 55px}
.hero h1{margin:22px 0 23px}
.hero-copy .lead{margin-bottom:30px}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-art{min-height:355px;position:relative;display:flex;align-items:center;justify-content:center}
.art-panel{width:82%;height:300px;background:var(--ink);border-radius:22px;padding:26px;color:#fff;box-shadow:var(--shadow);transform:rotate(3deg)}
.art-panel .topline{display:flex;justify-content:space-between;color:#b8c6c1;font-size:12px;border-bottom:1px solid #465052;padding-bottom:17px}
.art-title{font-size:31px;font-weight:800;margin:34px 0 20px;max-width:290px}
.art-row{display:flex;gap:9px}
.art-chip{height:48px;flex:1;border-radius:8px;background:#354344;border:1px solid #52605f}
.art-chip:first-child{background:var(--orange)}
.art-note{position:absolute;right:3%;bottom:20px;width:180px;background:#fff;color:var(--ink);padding:17px;border-radius:12px;box-shadow:var(--shadow);font-size:13px}
.section{padding:92px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:38px}
.section-head p{max-width:470px;color:var(--muted)}
.section-alt{background:#efede7}
.data-strip{border-bottom:1px solid var(--line);background:#fff}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:30px 0}
.data-item{padding:0 28px;border-left:1px solid var(--line)}
.data-item:first-child{border-left:0;padding-left:0}
.data-num{font-size:34px;font-weight:800;color:var(--orange)}
.data-label{font-size:14px;color:var(--muted)}
.advantage-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}
.advantage-layout .intro p{color:var(--muted);margin-top:22px}
.adv-list{display:grid;grid-template-columns:1fr 1fr;gap:0 35px;border-top:1px solid var(--line)}
.adv-item{padding:23px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:45px 1fr;gap:12px}
.index{color:var(--orange);font-weight:800;font-size:14px}
.adv-item p,.service-step p,.benefit p,.security-list p{color:var(--muted);font-size:14px;margin-top:7px}
.service-track{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid #cacbc4}
.service-step{position:relative;padding:29px 22px 0;border-right:1px solid var(--line)}
.service-step:first-child{padding-left:0}
.service-step:before{content:"";position:absolute;top:-5px;left:22px;width:9px;height:9px;background:var(--orange);border-radius:50%;box-shadow:0 0 0 5px var(--paper)}
.service-step:first-child:before{left:0}
.step-no{font-size:12px;color:var(--teal);font-weight:800;margin-bottom:13px}
.feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.feature-main,.news-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
.feature-main{min-height:310px;padding:35px;background:linear-gradient(135deg,#fff 55%,#dff0ec)}
.feature-main:hover,.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.feature-main h3{font-size:30px;max-width:430px;margin:22px 0 12px}
.feature-main p{color:var(--muted);max-width:520px}
.news-stack{display:flex;flex-direction:column;gap:12px}
.news-item{padding:21px 24px;display:grid;grid-template-columns:85px 1fr;gap:15px}
.news-item h3{font-size:17px}
.news-item p{color:var(--muted);font-size:13px;margin-top:4px}
.meta{font-size:12px;color:var(--teal);font-weight:700}
.scene-grid{display:grid;grid-template-columns:1.35fr .8fr .95fr;gap:14px}
.scene{min-height:180px;padding:25px;border-radius:var(--radius);background:var(--ink);color:#fff;display:flex;flex-direction:column;justify-content:space-between}
.scene:nth-child(2){background:var(--orange)}
.scene:nth-child(3){background:var(--teal)}
.scene strong{font-size:25px}
.scene span{font-size:13px;opacity:.78}
.benefit-list{max-width:900px;border-top:1px solid var(--line)}
.benefit{display:grid;grid-template-columns:190px 1fr 140px;align-items:center;gap:20px;padding:23px 0;border-bottom:1px solid var(--line)}
.benefit b{font-size:18px}.benefit small{color:var(--muted)}.benefit-tag{justify-self:end;color:var(--teal);background:var(--teal-soft);padding:5px 10px;border-radius:20px;font-size:12px}
.security-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:75px}
.security-layout>div:first-child{background:var(--teal);color:#fff;padding:35px;border-radius:var(--radius)}
.security-layout>div:first-child p{margin-top:18px;color:#d5eeea}
.security-list{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.security-list article{padding-left:18px;border-left:3px solid var(--orange)}
.security-list h3{font-size:18px}
.app-section{background:#252c2d;color:#fff;overflow:hidden}
.app-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:70px}
.app-section .lead{color:#c4cfcb;margin:20px 0 27px}
.device{height:380px;width:210px;border:8px solid #475151;border-radius:28px;background:#f2f0e8;color:var(--ink);padding:17px;transform:rotate(-7deg);margin-left:80px;box-shadow:25px 25px 0 rgba(238,105,72,.22)}
.device-top{font-size:12px;color:var(--teal);border-bottom:1px solid #ddd;padding-bottom:13px}
.device h3{font-size:22px;margin:25px 0}
.device-line{height:54px;border-radius:8px;background:#fff;margin:10px 0;padding:12px;font-size:12px}
.download-box{display:flex;gap:22px;align-items:center}
.qr{width:92px;height:92px;background:repeating-linear-gradient(45deg,#fff 0 4px,#202426 4px 8px);border:7px solid #fff;border-radius:5px}
.app-note{font-size:12px;color:#aab7b4;margin-top:16px}
.mobile-points{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.mobile-point{padding:22px;background:#fff;border:1px solid var(--line);border-radius:10px}
.mobile-point b{display:block;margin-bottom:8px}.mobile-point p{color:var(--muted);font-size:13px}
.timeline{border-left:2px solid #d8d8d1;margin-left:10px}
.timeline-item{position:relative;padding:0 0 28px 34px}
.timeline-item:before{content:"";position:absolute;left:-7px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--orange);border:3px solid var(--paper)}
.timeline-item h3{font-size:19px}.timeline-item p{color:var(--muted);font-size:14px;margin-top:5px}
.guide{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.guide-item{padding:24px;background:#fff;border-radius:var(--radius);border:1px solid var(--line)}
.guide-item strong{font-size:32px;color:var(--orange);display:block}.guide-item h3{margin:12px 0 7px}.guide-item p{font-size:13px;color:var(--muted)}
.faq{max-width:850px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:21px 0}.faq summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between}.faq summary:after{content:"+";color:var(--orange);font-size:22px}.faq details[open] summary:after{content:"−"}.faq details p{color:var(--muted);padding:13px 30px 0 0;font-size:14px}
.cta-band{background:var(--orange);color:#fff;padding:55px 0}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta-inner p{opacity:.88;margin-top:8px}.cta-band .btn{background:#fff;color:var(--orange-dark)}
.site-footer{background:#202627;color:#e8eeea;padding:55px 0 22px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px}.footer-brand p{color:#aab7b4;font-size:13px;margin-top:15px;max-width:280px}.footer-title{font-weight:700;margin-bottom:15px}.footer-links{display:grid;gap:8px;color:#aab7b4;font-size:13px}.footer-links a:hover,.footer-links a:focus{color:#fff;outline:none}.copyright{border-top:1px solid #3a4242;margin-top:42px;padding-top:18px;color:#899694;font-size:12px;display:flex;justify-content:space-between;gap:15px}
.empty-state{padding:45px 20px;text-align:center;border:1px dashed #c9cec8;border-radius:var(--radius);color:var(--muted);background:#fff}
@media(max-width:1024px){.nav{gap:0}.nav a{padding:8px 8px;font-size:13px}.header-inner{gap:15px}.advantage-layout,.security-layout{gap:35px}.container{width:min(var(--container),calc(100% - 36px))}}
@media(max-width:768px){
 .site-header{height:66px}.logo{min-width:auto}.logo-text{font-size:14px}.logo small{display:none}.nav{display:none;position:absolute;top:66px;left:0;right:0;background:var(--paper);padding:12px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px}.header-action{display:none}.menu-toggle{display:block;margin-left:auto}
 .hero{min-height:auto}.hero-grid{grid-template-columns:1fr;gap:25px;padding:58px 0 35px}.hero h1{font-size:46px}.hero-art{min-height:280px}.art-panel{width:88%;height:240px}.art-title{font-size:25px;margin:22px 0 14px}.section{padding:65px 0}.section-head{display:block;margin-bottom:27px}.section-head p{margin-top:14px}.data-grid{grid-template-columns:1fr 1fr;gap:24px}.data-item:nth-child(3){border-left:0;padding-left:0}.advantage-layout,.feature-layout,.security-layout,.app-grid{grid-template-columns:1fr}.adv-list{margin-top:25px}.service-track{grid-template-columns:1fr;gap:20px;border-top:0}.service-step,.service-step:first-child{border-right:0;border-left:1px solid var(--line);padding:0 0 0 28px}.service-step:before,.service-step:first-child:before{left:-5px;top:3px}.scene-grid{grid-template-columns:1fr 1fr}.scene:first-child{grid-column:span 2}.benefit{grid-template-columns:1fr;gap:6px}.benefit-tag{justify-self:start}.device{margin:0 auto}.mobile-points{grid-template-columns:1fr 1fr}.guide{grid-template-columns:1fr 1fr}.cta-inner{display:block}.cta-inner .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}
}
@media(max-width:520px){.container{width:min(100% - 30px,var(--container))}h2{font-size:31px}.hero h1{font-size:40px}.lead{font-size:16px}.hero-art{min-height:235px}.art-panel{height:210px;padding:19px}.art-note{right:0;bottom:0;width:145px;padding:12px}.data-grid{gap:18px 8px}.data-item{padding:0 10px}.data-num{font-size:28px}.adv-list,.security-list{grid-template-columns:1fr}.scene-grid,.mobile-points,.guide,.footer-grid{grid-template-columns:1fr}.scene:first-child{grid-column:auto}.download-box{align-items:flex-start}.qr{width:72px;height:72px;flex:none}.feature-main{min-height:270px;padding:25px}.feature-main h3{font-size:25px}.news-item{grid-template-columns:1fr;padding:18px}.device{height:330px;width:185px}.copyright{font-size:11px}}

/* roulang page: article */
:root{
      --ink:#202426;--muted:#697276;--paper:#f7f5f0;--white:#fff;
      --line:#e4e2dc;--orange:#ee6948;--orange-dark:#d95335;
      --teal:#198d82;--teal-soft:#e4f3ef;--sand:#eee8da;
      --radius:14px;--shadow:0 14px 38px rgba(31,38,37,.08);
      --container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"思源黑体","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(25,141,130,.35);outline-offset:3px}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:76px;background:rgba(247,245,240,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;min-width:220px;font-weight:800;letter-spacing:.02em}
    .logo-mark{width:32px;height:32px;border-radius:9px;background:var(--orange);color:#fff;display:grid;place-items:center;font-size:18px}
    .logo small{display:block;color:var(--muted);font-size:10px;letter-spacing:.08em;font-weight:500}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{padding:9px 13px;border-radius:8px;color:#50595b;font-size:14px;transition:.2s}
    .nav a:hover,.nav a:focus,.nav a.active{color:var(--orange-dark);background:#fbe8e1;outline:none}
    .header-action{white-space:nowrap}
    .menu-toggle{display:none;border:0;background:none;font-size:25px;color:var(--ink)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;padding:12px 20px;font-weight:700;font-size:14px;transition:.2s;min-height:45px}
    .btn-primary{background:var(--orange);color:#fff}
    .btn-primary:hover,.btn-primary:focus{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 7px 18px rgba(238,105,72,.22);outline:none}
    .btn-outline{border-color:#c9cbc6;color:var(--ink);background:transparent}
    .btn-outline:hover,.btn-outline:focus{border-color:var(--teal);color:var(--teal);outline:none}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
    .article-hero{padding:74px 0 58px;background:#ebe7dc;border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:28px}
    .breadcrumb a:hover{color:var(--orange-dark)}
    .breadcrumb span{color:#a4aaa6}
    .article-heading{max-width:900px}
    .article-heading h1{font-size:clamp(32px,5vw,58px);line-height:1.18;letter-spacing:-.035em;margin:18px 0 20px;font-weight:850}
    .article-intro{max-width:760px;color:var(--muted);font-size:18px;margin:0}
    .article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;margin-top:28px;color:var(--muted);font-size:13px}
    .meta-label{color:var(--teal);font-weight:750}
    .tag{display:inline-flex;align-items:center;padding:5px 11px;border-radius:20px;background:var(--teal-soft);color:var(--teal);font-size:12px;font-weight:700}
    .reading-section{padding:78px 0}
    .reading-layout{display:grid;grid-template-columns:minmax(0,800px) 260px;gap:72px;align-items:start;max-width:1135px;margin:auto}
    .article-content{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:48px 56px;box-shadow:0 8px 26px rgba(31,38,37,.035);overflow:hidden}
    .article-content>*:first-child{margin-top:0}
    .article-content h2{font-size:28px;line-height:1.35;margin:38px 0 16px}
    .article-content h3{font-size:21px;line-height:1.45;margin:30px 0 12px}
    .article-content p{margin:0 0 19px;color:#394144}
    .article-content ul,.article-content ol{padding-left:24px;margin:18px 0 24px;color:#394144}
    .article-content li{margin:7px 0}
    .article-content blockquote{margin:28px 0;padding:18px 22px;border-left:4px solid var(--orange);background:#fff4ef;color:#5d625f}
    .article-content a{color:var(--teal);text-decoration:underline;text-underline-offset:3px}
    .article-content img{width:100%;height:auto;border-radius:10px;margin:25px 0}
    .article-content table{width:100%;border-collapse:collapse;margin:25px 0;font-size:14px}
    .article-content th,.article-content td{padding:11px 13px;border:1px solid var(--line);text-align:left}
    .article-content th{background:var(--teal-soft)}
    .article-aside{position:sticky;top:106px}
    .aside-box{border-top:3px solid var(--orange);padding-top:16px;margin-bottom:28px}
    .aside-title{font-size:14px;font-weight:800;margin-bottom:13px}
    .aside-box p{font-size:13px;color:var(--muted);margin:7px 0}
    .aside-link{display:block;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;color:#4c5657;transition:.2s}
    .aside-link:hover{color:var(--orange-dark);padding-left:4px}
    .article-empty{padding:58px 20px;text-align:center}
    .empty-mark{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;margin:0 auto 18px;background:var(--teal-soft);color:var(--teal);font-size:23px;font-weight:800}
    .article-empty h2{margin:0 0 10px;font-size:25px}
    .article-empty p{color:var(--muted);margin:0 0 25px}
    .article-actions{padding:0 0 78px}
    .action-bar{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:28px 32px;background:var(--teal-soft);border:1px solid #cfe7e1;border-radius:var(--radius)}
    .action-bar h2{font-size:22px;margin:0 0 5px}
    .action-bar p{color:#55716e;font-size:14px;margin:0}
    .action-buttons{display:flex;flex-wrap:wrap;gap:10px}
    .support-section{padding:78px 0;background:#efede7;border-top:1px solid var(--line)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
    .section-head h2{font-size:30px;margin:12px 0 0}
    .section-head p{max-width:450px;color:var(--muted);margin:0}
    .support-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
    .support-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.25s}
    .support-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .support-card h3{font-size:19px;margin:0 0 10px}
    .support-card p{color:var(--muted);font-size:14px;margin:0 0 19px}
    .support-card .text-link{color:var(--teal);font-weight:700;font-size:14px}
    .support-card .text-link:hover{color:var(--orange-dark)}
    .site-footer{background:#252c2d;color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:38px}
    .footer-brand .logo{color:#fff;margin-bottom:18px}
    .footer-brand .logo small{color:#aebbb7}
    .footer-brand p{max-width:300px;color:#b9c4c1;font-size:14px}
    .footer-title{font-weight:800;margin:4px 0 15px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#b9c4c1;font-size:14px;transition:.2s}
    .footer-links a:hover{color:#fff;padding-left:3px}
    .copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#9daaa7;font-size:12px}
    @media(max-width:1024px){
      .header-inner{gap:16px}.logo{min-width:190px}.nav a{padding:8px 9px}
      .reading-layout{grid-template-columns:minmax(0,1fr) 220px;gap:35px}
      .article-content{padding:38px 40px}.footer-grid{grid-template-columns:1.4fr repeat(3,1fr);gap:22px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header{height:68px}.header-inner{justify-content:space-between}
      .logo{min-width:0}.logo small{display:none}.header-action,.nav{display:none}
      .menu-toggle{display:block}.nav.open{display:flex;position:absolute;top:68px;left:0;right:0;padding:12px 16px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open a{padding:12px 15px}
      .article-hero{padding:45px 0 42px}.article-heading h1{font-size:36px}
      .article-intro{font-size:16px}.reading-section{padding:45px 0}
      .reading-layout{display:block}.article-aside{position:static;margin-top:24px;display:grid;grid-template-columns:1fr 1fr;gap:25px}
      .article-content{padding:30px 23px}.article-content h2{font-size:24px}
      .article-actions{padding-bottom:45px}.action-bar{display:block;padding:24px}.action-buttons{margin-top:20px}
      .support-section{padding:50px 0}.section-head{display:block}.section-head p{margin-top:12px}
      .support-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
      .copyright{display:block}.copyright span{display:block;margin-top:5px}
    }
    @media(max-width:520px){
      .breadcrumb{font-size:12px}.article-heading h1{font-size:30px}
      .article-meta{gap:8px 14px}.article-aside{display:block}
      .aside-box{margin-bottom:22px}.action-buttons .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
    }

/* roulang page: category1 */
:root{
      --ink:#202426;--muted:#697276;--paper:#f7f5f0;--white:#fff;
      --line:#e4e2dc;--orange:#ee6948;--orange-dark:#d95335;
      --teal:#198d82;--teal-soft:#e4f3ef;--sand:#eee8da;
      --radius:14px;--shadow:0 14px 38px rgba(31,38,37,.08);
      --container:1200px
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"思源黑体","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    a:focus,button:focus,summary:focus{outline:3px solid rgba(25,141,130,.3);outline-offset:3px}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,h4,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,64px);line-height:1.16;letter-spacing:-.04em;margin-bottom:18px}
    h2{font-size:clamp(28px,3.2vw,42px);line-height:1.25;letter-spacing:-.025em;margin-bottom:12px}
    h3{line-height:1.35;margin-bottom:8px}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:76px;background:rgba(247,245,240,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;min-width:220px;font-weight:800;letter-spacing:.02em}
    .logo-mark{width:32px;height:32px;border-radius:9px;background:var(--orange);color:#fff;display:grid;place-items:center;font-size:18px}
    .logo small{display:block;color:var(--muted);font-size:10px;letter-spacing:.08em;font-weight:500}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{padding:9px 13px;border-radius:8px;color:#50595b;font-size:14px;transition:.2s}
    .nav a:hover,.nav a:focus,.nav a.active{color:var(--orange-dark);background:#fbe8e1;outline:none}
    .header-action{white-space:nowrap}
    .menu-toggle{display:none;border:0;background:none;font-size:25px;color:var(--ink)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;padding:12px 20px;font-weight:700;font-size:14px;transition:.2s;min-height:45px}
    .btn-primary{background:var(--orange);color:#fff}
    .btn-primary:hover,.btn-primary:focus{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 7px 18px rgba(238,105,72,.22);outline:none}
    .btn-outline{border-color:#c9cbc6;color:var(--ink);background:transparent}
    .btn-outline:hover,.btn-outline:focus{border-color:var(--teal);color:var(--teal);outline:none}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
    .muted{color:var(--muted)}
    .section{padding:86px 0}
    .section-alt{background:#efede7}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:36px}
    .section-head p{max-width:510px;color:var(--muted);margin-bottom:0}
    .page-intro{background:#ebe7dc;border-bottom:1px solid var(--line)}
    .intro-inner{padding:52px 0 48px;display:flex;align-items:end;justify-content:space-between;gap:40px}
    .crumb{font-size:13px;color:var(--muted);margin-bottom:18px}
    .crumb a{color:var(--teal)}
    .intro-copy{max-width:760px}
    .intro-copy p{font-size:18px;color:var(--muted);max-width:700px;margin:0}
    .intro-stamp{width:112px;height:112px;border:1px solid rgba(25,141,130,.35);border-radius:50%;display:grid;place-items:center;text-align:center;color:var(--teal);font-size:13px;font-weight:800;transform:rotate(-8deg)}
    .brand-overview{display:grid;grid-template-columns:.72fr 1.28fr;gap:76px}
    .brand-overview .lead{font-size:19px;color:var(--muted)}
    .index-list{border-top:1px solid var(--line)}
    .index-item{display:grid;grid-template-columns:65px 1fr 150px;gap:18px;align-items:center;padding:23px 0;border-bottom:1px solid var(--line);transition:.2s}
    .index-item:hover{padding-left:8px;background:rgba(255,255,255,.35)}
    .index-no{font-size:23px;font-weight:800;color:var(--orange)}
    .index-item h3{font-size:19px;margin:0}
    .index-item p{font-size:14px;color:var(--muted);margin:5px 0 0}
    .index-note{text-align:right;color:var(--teal);font-size:13px;font-weight:700}
    .content-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 25px rgba(31,38,37,.04)}
    .content-list{overflow:hidden}
    .content-list-head{padding:25px 28px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}
    .content-list-head h3{margin:0;font-size:20px}
    .content-list-body{padding:0 28px}
    .post-row{display:grid;grid-template-columns:92px 1fr 90px;gap:18px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
    .post-row:last-child{border-bottom:0}
    .post-date{color:var(--teal);font-size:13px;font-weight:700}
    .post-row h3{font-size:18px;margin:0}
    .post-row p{color:var(--muted);font-size:14px;margin:5px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .post-tag{justify-self:end;background:var(--teal-soft);color:var(--teal);border-radius:20px;padding:4px 10px;font-size:12px;white-space:nowrap}
    .post-row a:hover h3{color:var(--orange-dark)}
    .empty-state{text-align:center;padding:58px 20px;color:var(--muted)}
    .empty-icon{width:48px;height:48px;border-radius:50%;background:var(--teal-soft);color:var(--teal);display:grid;place-items:center;margin:0 auto 14px;font-size:22px}
    .feature-wrap{display:grid;grid-template-columns:1.08fr .92fr;gap:22px}
    .feature-block{min-height:295px;padding:35px;background:#252c2d;color:#fff;border-radius:var(--radius);position:relative;overflow:hidden}
    .feature-block:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(255,255,255,.2);border-radius:50%;right:-35px;bottom:-60px}
    .feature-block p{color:#c4cfcb;max-width:520px}
    .feature-block .eyebrow{color:#8bd3c6}
    .feature-block h3{font-size:29px;max-width:430px;margin:22px 0 14px}
    .feature-side{padding:30px;background:var(--teal-soft);border-radius:var(--radius);border:1px solid #cfe8e2}
    .feature-side h3{font-size:23px}
    .feature-side ul{list-style:none;padding:0;margin:22px 0 0}
    .feature-side li{padding:12px 0;border-bottom:1px solid rgba(25,141,130,.2);display:flex;justify-content:space-between;gap:20px}
    .feature-side li:last-child{border-bottom:0}
    .feature-side span{color:var(--muted);font-size:14px;text-align:right}
    .scene-strip{display:grid;grid-template-columns:1.3fr .9fr .8fr;gap:14px}
    .scene{min-height:174px;padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;position:relative;overflow:hidden}
    .scene:first-child{background:var(--sand)}
    .scene b{display:block;font-size:23px;margin:18px 0 5px}
    .scene p{font-size:14px;color:var(--muted);margin:0;max-width:250px}
    .scene-no{color:var(--orange);font-weight:800;font-size:13px}
    .tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .tool{padding:25px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
    .tool:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .tool-icon{width:40px;height:40px;border-radius:10px;background:var(--teal-soft);color:var(--teal);display:grid;place-items:center;font-weight:800;margin-bottom:20px}
    .tool h3{font-size:18px}
    .tool p{font-size:14px;color:var(--muted);margin:0}
    .faq{max-width:850px;border-top:1px solid var(--line)}
    .faq details{border-bottom:1px solid var(--line);padding:20px 0}
    .faq summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:20px}
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:after{content:"+";color:var(--orange);font-size:22px;line-height:1}
    .faq details[open] summary:after{content:"−"}
    .faq details p{color:var(--muted);font-size:14px;max-width:720px;margin:13px 0 0}
    .cta-band{background:var(--orange);color:#fff;padding:55px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-inner h2{margin-bottom:8px}
    .cta-inner p{margin:0;color:#fff0eb}
    .cta-band .btn{background:#fff;color:var(--orange-dark)}
    .cta-band .btn:hover{background:#fff7f4}
    .site-footer{background:#252c2d;color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:38px}
    .footer-brand .logo{color:#fff}
    .footer-brand p{color:#b8c2bf;font-size:14px;max-width:310px;margin-top:18px}
    .footer-title{font-weight:800;margin-bottom:15px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#b8c2bf;font-size:14px;transition:.2s}
    .footer-links a:hover{color:#fff0eb}
    .copyright{border-top:1px solid #414949;margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#9da9a5;font-size:12px}
    @media(max-width:1024px){
      .header-inner{gap:15px}.logo{min-width:190px}.nav a{padding:8px 9px}
      .brand-overview{gap:40px}.index-item{grid-template-columns:55px 1fr 120px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header{height:68px}.header-inner{justify-content:space-between}
      .nav{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:12px 14px}.header-action{display:none}.menu-toggle{display:block}
      .logo{min-width:0}.logo small{display:none}
      .intro-inner,.cta-inner{display:block}.intro-stamp{display:none}
      .intro-inner{padding:38px 0}.intro-copy p{font-size:16px}
      .section{padding:62px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:12px}
      .brand-overview,.feature-wrap{grid-template-columns:1fr;gap:30px}
      .index-item{grid-template-columns:45px 1fr}.index-note{display:none}
      .scene-strip,.tool-grid{grid-template-columns:1fr}
      .scene{min-height:135px}.post-row{grid-template-columns:74px 1fr}.post-tag{display:none}
      .cta-inner .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-bottom:5px}
    }
    @media(max-width:520px){
      h1{font-size:38px}.content-list-head{padding:20px}.content-list-body{padding:0 20px}
      .post-row{grid-template-columns:1fr;gap:5px;padding:19px 0}.post-date{font-size:12px}
      .feature-block,.feature-side{padding:25px}.feature-block h3{font-size:25px}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
    }

/* roulang page: category2 */
:root{
      --ink:#202426;--muted:#697276;--paper:#f7f5f0;--white:#fff;
      --line:#e4e2dc;--orange:#ee6948;--orange-dark:#d95335;
      --teal:#198d82;--teal-soft:#e4f3ef;--sand:#eee8da;
      --radius:14px;--shadow:0 14px 38px rgba(31,38,37,.08);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"思源黑体","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(34px,5vw,62px);line-height:1.18;letter-spacing:-.03em;font-weight:800}
    h2{font-size:clamp(28px,3.4vw,42px);line-height:1.25;letter-spacing:-.025em;font-weight:800}
    h3{line-height:1.35}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:76px;background:rgba(247,245,240,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;min-width:220px;font-weight:800;letter-spacing:.02em}
    .logo-mark{width:32px;height:32px;border-radius:9px;background:var(--orange);color:#fff;display:grid;place-items:center;font-size:18px}
    .logo small{display:block;color:var(--muted);font-size:10px;letter-spacing:.08em;font-weight:500}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{padding:9px 13px;border-radius:8px;color:#50595b;font-size:14px;transition:.2s}
    .nav a:hover,.nav a:focus,.nav a.active{color:var(--orange-dark);background:#fbe8e1;outline:none}
    .header-action{white-space:nowrap}
    .menu-toggle{display:none;border:0;background:none;font-size:25px;color:var(--ink)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;padding:12px 20px;font-weight:700;font-size:14px;transition:.2s;min-height:45px}
    .btn-primary{background:var(--orange);color:#fff}
    .btn-primary:hover,.btn-primary:focus{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 7px 18px rgba(238,105,72,.22);outline:none}
    .btn-outline{border-color:#c9cbc6;color:var(--ink);background:transparent}
    .btn-outline:hover,.btn-outline:focus{border-color:var(--teal);color:var(--teal);outline:none}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
    .section{padding:88px 0}
    .section-alt{background:#efede7}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:38px}
    .section-head p{max-width:500px;color:var(--muted);margin-bottom:0}
    .crumb-bar{padding:24px 0 0;color:var(--muted);font-size:13px}
    .crumb-bar a:hover{color:var(--orange-dark)}
    .category-hero{padding:54px 0 70px;border-bottom:1px solid var(--line)}
    .category-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:end}
    .category-hero h1{margin:18px 0 20px;max-width:720px}
    .lead{color:var(--muted);font-size:18px;max-width:680px;line-height:1.85}
    .hero-note{border-left:3px solid var(--orange);padding:22px 0 22px 26px;color:var(--muted)}
    .hero-note strong{display:block;color:var(--ink);font-size:18px;margin-bottom:8px}
    .value-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:85px}
    .value-intro p{color:var(--muted);margin-top:22px}
    .value-list{border-top:1px solid var(--line)}
    .value-item{display:grid;grid-template-columns:55px 1fr 120px;gap:20px;align-items:start;padding:25px 0;border-bottom:1px solid var(--line);transition:.2s}
    .value-item:hover{padding-left:8px;background:rgba(255,255,255,.4)}
    .value-number{font-size:24px;font-weight:800;color:var(--orange)}
    .value-item h3{font-size:20px;margin:0 0 6px}
    .value-item p{font-size:14px;color:var(--muted);margin:0}
    .value-mark{justify-self:end;color:var(--teal);font-size:13px;font-weight:700;background:var(--teal-soft);padding:5px 10px;border-radius:20px}
    .process-section{background:#252c2d;color:#fff}
    .process-section .section-head p{color:#c4cfcb}
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid rgba(255,255,255,.2)}
    .process-step{padding:30px 26px 20px 0;border-right:1px solid rgba(255,255,255,.18);margin-right:26px}
    .process-step:last-child{border-right:0;margin-right:0}
    .step-no{font-size:14px;color:#f48b70;font-weight:800;letter-spacing:.1em}
    .process-step h3{font-size:20px;margin:22px 0 10px}
    .process-step p{font-size:14px;color:#b9c7c2;margin:0}
    .scenario-grid{display:grid;grid-template-columns:1.2fr .8fr .95fr;gap:15px}
    .scenario{min-height:210px;border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:#fff;position:relative;overflow:hidden;transition:.25s}
    .scenario:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .scenario:first-child{background:var(--teal-soft)}
    .scenario:nth-child(2){background:#fff1e9}
    .scenario:nth-child(3){background:#ece9df}
    .scenario b{font-size:13px;color:var(--teal)}
    .scenario h3{font-size:24px;margin:24px 0 10px}
    .scenario p{font-size:14px;color:var(--muted);max-width:300px}
    .support-layout{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .support-card{padding:31px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);display:flex;gap:20px;align-items:flex-start;transition:.25s}
    .support-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
    .support-icon{width:45px;height:45px;flex:0 0 45px;border-radius:12px;background:#fbe8e1;color:var(--orange-dark);display:grid;place-items:center;font-weight:800}
    .support-card h3{margin:0 0 8px;font-size:19px}
    .support-card p{margin:0;color:var(--muted);font-size:14px}
    .app-strip{background:#e5f1ed;padding:46px 0}
    .app-layout{display:flex;align-items:center;justify-content:space-between;gap:35px}
    .app-layout h2{margin:12px 0 10px;font-size:31px}
    .app-layout p{color:var(--muted);margin:0}
    .app-badge{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
    .download-note{font-size:12px;color:var(--muted)}
    .faq{max-width:850px;border-top:1px solid var(--line)}
    .faq details{border-bottom:1px solid var(--line);padding:21px 0}
    .faq summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:20px}
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:after{content:"+";color:var(--orange);font-size:22px;font-weight:400;line-height:1}
    .faq details[open] summary:after{content:"−"}
    .faq details p{color:var(--muted);font-size:14px;margin:14px 35px 0 0}
    .cta{background:var(--orange);color:#fff;padding:52px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:32px;margin:0 0 8px}
    .cta p{margin:0;color:#fff3ee}
    .cta .btn{background:#fff;color:var(--orange-dark)}
    .cta .btn:hover,.cta .btn:focus{background:#252c2d;color:#fff}
    .site-footer{background:#252c2d;color:#fff;padding:58px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px}
    .footer-brand .logo{color:#fff}
    .footer-brand .logo small{color:#aab8b5}
    .footer-brand p{color:#b9c7c2;font-size:14px;max-width:300px;margin:20px 0 0}
    .footer-title{font-weight:800;margin-bottom:16px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#b9c7c2;font-size:14px;transition:.2s}
    .footer-links a:hover,.footer-links a:focus{color:#fff;outline:none;padding-left:4px}
    .copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:45px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#94a29e;font-size:12px}
    @media(max-width:1024px){
      .header-inner{gap:15px}.logo{min-width:190px}.nav a{padding:8px 9px}
      .category-hero-grid,.value-layout{gap:40px}
      .value-layout{grid-template-columns:.8fr 1.2fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 34px))}
      .site-header{height:68px}.header-inner{justify-content:space-between}
      .header-action{display:none}.menu-toggle{display:block}
      .nav{display:none;position:absolute;left:17px;right:17px;top:75px;padding:12px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:12px 14px}
      .category-hero{padding:40px 0 52px}.category-hero-grid,.value-layout{grid-template-columns:1fr}
      .section{padding:65px 0}.section-head{display:block;margin-bottom:28px}.section-head p{margin-top:14px}
      .value-list{margin-top:5px}.value-item{grid-template-columns:42px 1fr}.value-mark{grid-column:2;justify-self:start}
      .process-grid{grid-template-columns:1fr 1fr}.process-step{border-right:0;border-bottom:1px solid rgba(255,255,255,.18);margin:0;padding:25px 18px 25px 0}
      .scenario-grid,.support-layout{grid-template-columns:1fr}.scenario{min-height:170px}
      .app-layout,.cta-inner{display:block}.app-badge{margin-top:24px}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-bottom:5px}
    }
    @media(max-width:520px){
      h1{font-size:36px}.lead{font-size:16px}.process-grid{grid-template-columns:1fr}
      .value-item{gap:12px}.support-card{padding:23px}
      .footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category3 */
:root{
  --ink:#202426;
  --muted:#697276;
  --paper:#f7f5f0;
  --white:#fff;
  --line:#e4e2dc;
  --orange:#ee6948;
  --orange-dark:#d95335;
  --teal:#198d82;
  --teal-soft:#e4f3ef;
  --sand:#eee8da;
  --deep:#252c2d;
  --radius:14px;
  --shadow:0 14px 38px rgba(31,38,37,.08);
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--paper);
  font-family:"思源黑体","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  font-size:16px;
  line-height:1.7;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,textarea{font:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p{margin-top:0}
h1,h2,h3,h4{line-height:1.25;letter-spacing:.01em}
h1{font-size:clamp(34px,5vw,62px)}
h2{font-size:clamp(27px,3.5vw,42px)}
h3{font-size:20px}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{
  height:76px;
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(247,245,240,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.header-inner{height:100%;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;min-width:220px;font-weight:800}
.logo-mark{
  width:32px;height:32px;border-radius:9px;background:var(--orange);
  color:#fff;display:grid;place-items:center;font-size:18px
}
.logo small{display:block;color:var(--muted);font-size:10px;letter-spacing:.06em;font-weight:500}
.nav{display:flex;align-items:center;gap:5px;flex:1}
.nav a{
  padding:9px 13px;border-radius:8px;color:#50595b;font-size:14px;
  transition:.2s
}
.nav a:hover,.nav a:focus,.nav a.active{
  color:var(--orange-dark);background:#fbe8e1;outline:none
}
.header-action{white-space:nowrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:45px;padding:12px 20px;border:1px solid transparent;
  border-radius:9px;font-size:14px;font-weight:700;transition:.2s
}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover,.btn-primary:focus{
  background:var(--orange-dark);transform:translateY(-2px);
  box-shadow:0 7px 18px rgba(238,105,72,.22);outline:3px solid rgba(238,105,72,.18)
}
.btn-outline{background:transparent;border-color:#c9cbc6;color:var(--ink)}
.btn-outline:hover,.btn-outline:focus{border-color:var(--teal);color:var(--teal);outline:3px solid rgba(25,141,130,.13)}
.menu-toggle{display:none;border:0;background:none;color:var(--ink);font-size:25px}
.page-head{
  padding:74px 0 62px;
  background:#ebe7dc;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:24px}
.crumb span{color:var(--orange)}
.page-head-grid{display:grid;grid-template-columns:1fr .75fr;gap:70px;align-items:end}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;color:var(--teal);
  font-size:12px;font-weight:800;letter-spacing:.12em
}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
.page-head h1{margin:18px 0 17px}
.page-head p{max-width:670px;color:var(--muted);font-size:18px;margin-bottom:0}
.head-note{
  border-left:3px solid var(--orange);
  padding:6px 0 6px 22px;
  color:#50595b;
}
.head-note strong{display:block;color:var(--ink);font-size:22px;margin-bottom:7px}
.section{padding:88px 0}
.section-alt{background:#efede7}
.section-head{
  display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:36px
}
.section-head h2{margin-bottom:0}
.section-head p{max-width:470px;color:var(--muted);margin-bottom:0}
.news-layout{display:grid;grid-template-columns:.83fr 1.17fr;gap:32px;align-items:start}
.feature-news{
  min-height:370px;padding:36px;border-radius:var(--radius);
  background:var(--deep);color:#fff;position:relative;overflow:hidden
}
.feature-news:after{
  content:"";position:absolute;width:220px;height:220px;right:-75px;bottom:-90px;
  border:42px solid rgba(238,105,72,.75);border-radius:50%
}
.feature-news .eyebrow{color:#9ed8d0;position:relative;z-index:1}
.feature-news h3{font-size:30px;max-width:390px;margin:27px 0 16px;position:relative;z-index:1}
.feature-news p{color:#c5ceca;max-width:420px;position:relative;z-index:1}
.news-list{border-top:1px solid var(--line)}
.news-row{
  display:grid;grid-template-columns:104px 1fr auto;gap:20px;align-items:start;
  padding:22px 0;border-bottom:1px solid var(--line);transition:.2s
}
.news-row:hover{padding-left:8px;background:rgba(255,255,255,.38)}
.news-date{color:var(--teal);font-size:13px;font-weight:700;padding-top:3px}
.news-row h3{font-size:19px;margin:0 0 7px}
.news-row p{color:var(--muted);font-size:14px;margin:0;line-height:1.65}
.news-arrow{color:var(--orange);font-size:21px}
.tag{
  display:inline-flex;align-items:center;border-radius:30px;
  padding:4px 10px;background:var(--teal-soft);color:var(--teal);
  font-size:12px;font-weight:700
}
.updates-wrap{display:grid;grid-template-columns:1fr .72fr;gap:54px;align-items:start}
.timeline{border-left:1px solid #cfd2cc;padding-left:28px}
.timeline-item{position:relative;padding:0 0 30px}
.timeline-item:before{
  content:"";position:absolute;left:-35px;top:7px;width:13px;height:13px;
  border-radius:50%;background:var(--orange);border:3px solid var(--paper)
}
.timeline-item h3{font-size:19px;margin:10px 0 6px}
.timeline-item p{color:var(--muted);font-size:14px;margin:0}
.update-aside{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.update-aside h3{margin-bottom:15px}
.update-aside p{color:var(--muted);font-size:14px}
.aside-line{display:flex;justify-content:space-between;gap:15px;padding:14px 0;border-top:1px solid var(--line);font-size:14px}
.aside-line span{color:var(--teal);font-weight:700}
.scene-strip{display:grid;grid-template-columns:1.3fr .8fr .95fr;gap:14px}
.scene{
  min-height:190px;padding:25px;border-radius:var(--radius);
  border:1px solid var(--line);background:#fff;transition:.25s
}
.scene:first-child{background:var(--teal);color:#fff}
.scene:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.scene small{display:block;color:var(--orange);font-weight:800;margin-bottom:23px}
.scene:first-child small{color:#c8eee8}
.scene h3{margin-bottom:9px}
.scene p{font-size:14px;color:var(--muted);margin:0}
.scene:first-child p{color:#d7ece9}
.support-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
.support-card{
  padding:31px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)
}
.support-card.accent{background:var(--sand);border-color:transparent}
.support-card h3{font-size:24px;margin:15px 0 10px}
.support-card p{color:var(--muted);font-size:14px;margin-bottom:22px}
.support-icon{
  width:42px;height:42px;display:grid;place-items:center;border-radius:12px;
  color:#fff;background:var(--orange);font-weight:800
}
.faq{max-width:860px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:21px 0}
.faq summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;
  gap:20px;font-weight:700
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"＋";color:var(--orange);font-size:22px;line-height:1}
.faq details[open] summary:after{content:"－"}
.faq details p{color:var(--muted);font-size:14px;max-width:750px;margin:13px 32px 0 0}
.cta-band{padding:63px 0;background:var(--orange);color:#fff}
.cta-grid{display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta-grid h2{margin-bottom:10px}
.cta-grid p{margin:0;color:#ffe5dc}
.cta-band .btn{background:#fff;color:var(--orange-dark)}
.cta-band .btn:hover{background:#fff4ef}
.site-footer{background:var(--deep);color:#fff;padding:65px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:40px}
.footer-brand .logo{color:#fff}
.footer-brand p{max-width:300px;color:#aeb9b5;font-size:14px;margin:20px 0 0}
.footer-title{font-size:14px;font-weight:800;margin-bottom:16px}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#aeb9b5;font-size:13px;transition:.2s}
.footer-links a:hover,.footer-links a:focus{color:#fff;outline:none}
.copyright{
  display:flex;justify-content:space-between;gap:20px;
  border-top:1px solid #46504f;margin-top:45px;padding-top:18px;
  color:#899590;font-size:12px
}
.empty-state{
  padding:36px;border:1px dashed #c9cbc6;border-radius:var(--radius);
  color:var(--muted);text-align:center;background:rgba(255,255,255,.4)
}
@media(max-width:1024px){
  .header-inner{gap:15px}
  .logo{min-width:195px}
  .nav a{padding:8px 9px}
  .header-action{display:none}
  .page-head-grid,.news-layout,.updates-wrap,.support-grid{gap:35px}
}
@media(max-width:768px){
  .container{width:min(var(--container),calc(100% - 32px))}
  .site-header{height:68px}
  .header-inner{justify-content:space-between}
  .logo{min-width:0}
  .logo small{display:none}
  .nav{
    display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px;
    background:var(--paper);border-bottom:1px solid var(--line);
    box-shadow:0 12px 24px rgba(31,38,37,.08);flex-direction:column;align-items:stretch
  }
  .nav.open{display:flex}
  .nav a{padding:13px 14px}
  .menu-toggle{display:block}
  .page-head{padding:51px 0 45px}
  .page-head-grid,.news-layout,.updates-wrap,.support-grid{grid-template-columns:1fr}
  .head-note{margin-top:8px}
  .section{padding:62px 0}
  .section-head{display:block;margin-bottom:27px}
  .section-head p{margin-top:13px}
  .scene-strip{grid-template-columns:1fr}
  .scene{min-height:145px}
  .cta-grid{display:block}
  .cta-grid .btn{margin-top:23px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1/-1}
  .copyright{display:block}
  .copyright span{display:block;margin-bottom:6px}
}
@media(max-width:520px){
  h1{font-size:35px}
  h2{font-size:29px}
  .feature-news{min-height:320px;padding:27px}
  .feature-news h3{font-size:25px}
  .news-row{grid-template-columns:75px 1fr;gap:12px}
  .news-arrow{display:none}
  .support-card{padding:25px}
  .footer-grid{grid-template-columns:1fr}
}