/* roulang page: index */
:root{
  --ink:#17211d;
  --muted:#68736d;
  --line:#dfe6df;
  --paper:#f5f7f2;
  --card:#ffffff;
  --deep:#17251f;
  --deep-2:#21362d;
  --mint:#b9efcf;
  --green:#198957;
  --orange:#f0a45c;
  --soft:#e9f2e9;
  --radius:18px;
  --shadow:0 16px 42px rgba(28,52,39,.09);
  --container:1220px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{border:0;cursor:pointer}
img{display:block;max-width:100%}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.topline{background:var(--deep);color:#d7e6dc;font-size:13px}
.topline .container{height:36px;display:flex;align-items:center;justify-content:space-between}
.notice{display:flex;align-items:center;gap:9px}
.notice i{width:7px;height:7px;border-radius:50%;background:var(--mint);display:inline-block}
.topline a{color:var(--mint);font-weight:700}
.site-header{background:rgba(245,247,242,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:900;letter-spacing:-.5px;white-space:nowrap}
.logo-mark{width:33px;height:33px;border-radius:10px;background:var(--green);position:relative;display:grid;place-items:center}
.logo-mark:before{content:"";width:14px;height:14px;border:3px solid #fff;border-radius:50%}
.logo-mark:after{content:"";position:absolute;width:7px;height:3px;background:var(--orange);transform:rotate(-42deg);right:2px;top:7px;border-radius:4px}
.nav{display:flex;align-items:center;gap:7px;margin-left:auto}
.nav a{font-size:14px;color:#52605a;padding:9px 13px;border-radius:10px;transition:.2s}
.nav a:hover,.nav a.active{color:var(--green);background:var(--soft)}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 19px;border-radius:11px;font-size:14px;font-weight:800;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(25,137,87,.16)}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:#117449}
.btn-light{background:#edf5ed;color:var(--green);border:1px solid #d8e8da}
.btn-dark{background:#fff;color:var(--deep)}
.menu-btn{display:none;background:none;color:var(--ink);font-size:25px}
.hero{padding:82px 0 72px;background:linear-gradient(135deg,#f5f7f2 0%,#edf5ed 58%,#e5f1e8 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:70px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-weight:800;font-size:13px;margin-bottom:18px}
.eyebrow:before{content:"";width:25px;height:2px;background:var(--orange)}
h1{font-size:clamp(38px,5vw,65px);line-height:1.13;letter-spacing:-2.5px;max-width:680px}
.hero-copy{font-size:18px;color:var(--muted);max-width:590px;margin:24px 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.meta-row{display:flex;flex-wrap:wrap;gap:20px;color:#718078;font-size:13px;margin-top:24px}
.meta-row span{display:flex;align-items:center;gap:7px}
.meta-row b{color:var(--ink)}
.browser-scene{position:relative}
.browser{background:#fff;border:1px solid #d6e3d8;border-radius:18px;box-shadow:var(--shadow);overflow:hidden;transform:rotate(1.2deg)}
.browser-bar{height:45px;background:#f0f4ef;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:7px;padding:0 16px}
.dot{width:8px;height:8px;border-radius:50%;background:#cad6cd}
.dot:nth-child(2){background:#efc477}.dot:nth-child(3){background:#8ecda8}
.address{height:25px;flex:1;margin-left:12px;background:#fff;border-radius:6px;color:#9aa69e;font-size:11px;padding:3px 10px}
.screen{padding:23px;background:#f8faf7;min-height:315px}
.screen-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.screen-brand{font-size:16px;font-weight:900}.screen-badge{font-size:11px;color:var(--green);background:#dcf4e4;padding:4px 8px;border-radius:20px}
.screen-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:14px}
.screen-main,.screen-side{background:#fff;border:1px solid #e2ebe2;border-radius:12px;padding:15px}
.score-line{height:9px;background:#e2eee5;border-radius:9px;margin:12px 0}.score-line.short{width:62%}.score-line.tiny{width:38%;height:7px}
.screen-title{height:16px;width:72%;background:#294e3c;border-radius:4px}.mini-list{display:grid;gap:12px;margin-top:20px}.mini-item{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #edf1ed;padding-bottom:10px;font-size:11px;color:#66736c}.mini-item b{color:var(--green)}
.float-card{position:absolute;background:var(--deep);color:white;border-radius:15px;padding:15px 17px;right:-28px;bottom:-23px;width:164px;box-shadow:0 14px 28px rgba(23,37,31,.2)}
.float-card small{color:#adc5b5;font-size:11px}.float-card strong{display:block;color:var(--mint);font-size:20px;margin-top:4px}
.section{padding:92px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}.section-kicker{font-size:13px;color:var(--green);font-weight:900;letter-spacing:1px}.section h2{font-size:clamp(27px,3.5vw,42px);line-height:1.2;letter-spacing:-1.3px;margin-top:8px}.section-lead{max-width:510px;color:var(--muted);font-size:15px}
.quick-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:14px}
.quick{min-height:150px;padding:23px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);transition:.2s;display:flex;flex-direction:column;justify-content:space-between}
.quick:first-child{background:var(--deep);color:#fff;border-color:var(--deep)}
.quick:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#afd8ba}
.quick-icon{font-size:22px;color:var(--orange)}.quick h3{font-size:18px;margin-top:14px}.quick p{font-size:13px;color:var(--muted);margin-top:4px}.quick:first-child p{color:#b4c9bb}.arrow{align-self:flex-end;color:var(--green);font-size:22px}.quick:first-child .arrow{color:var(--mint)}
.news-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(320px,.7fr);gap:20px}
.feature-news{background:var(--deep);border-radius:var(--radius);overflow:hidden;color:#fff;display:grid;grid-template-columns:1fr 1fr;min-height:350px}
.news-visual{background:linear-gradient(145deg,#426e56,#1b2e25);padding:24px;position:relative;display:flex;align-items:end}
.data-art{width:100%;height:205px;border:1px solid rgba(255,255,255,.2);border-radius:13px;padding:18px;background:linear-gradient(180deg,rgba(255,255,255,.11),rgba(255,255,255,.02))}
.data-art .line{height:2px;background:var(--mint);margin:34px 0 0;transform:rotate(-8deg);box-shadow:0 0 0 5px rgba(185,239,207,.08)}
.data-art .bar{height:8px;background:var(--orange);width:58%;margin-top:32px;border-radius:5px}
.news-copy{padding:34px 30px;display:flex;flex-direction:column;align-items:flex-start}
.tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:#e4f5e7;color:var(--green);font-size:12px;font-weight:800}.tag.dark{background:rgba(185,239,207,.14);color:var(--mint)}
.news-copy h3{font-size:25px;line-height:1.35;margin:20px 0 12px}.news-copy p{color:#b5c5ba;font-size:14px}.news-copy .btn{margin-top:auto}
.news-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px 23px}
.news-item{display:grid;grid-template-columns:38px 1fr;gap:13px;padding:21px 0;border-bottom:1px solid var(--line)}.news-item:last-child{border-bottom:0}
.news-num{font-size:22px;font-weight:900;color:#c8d6ca}.news-item h4{font-size:15px;line-height:1.45}.news-item p{font-size:12px;color:var(--muted);margin-top:5px}.news-item time{font-size:11px;color:#93a098}
.entry-section{background:var(--deep);color:#fff}.entry-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px;align-items:center}.entry-section .section-lead{color:#b7c8bc}
.entry-points{list-style:none;margin:30px 0}.entry-points li{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:15px}.entry-points b{color:var(--mint);font-size:18px}.entry-points span{color:#c0cec4}
.device-panel{background:#263b31;border:1px solid rgba(185,239,207,.2);border-radius:22px;padding:22px}
.panel-top{display:flex;justify-content:space-between;color:#b9cbbf;font-size:12px;margin-bottom:18px}.status{color:var(--mint)}
.panel-window{background:#f5f8f3;border-radius:14px;padding:18px;color:var(--ink)}.panel-nav{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:14px}.panel-nav b{font-size:15px}.panel-nav span{font-size:11px;color:var(--green)}
.panel-content{display:grid;grid-template-columns:1.3fr .7fr;gap:14px;margin-top:16px}.panel-chart{height:155px;border-radius:10px;background:linear-gradient(155deg,#d8f0df,#eff6ef);position:relative;overflow:hidden}.panel-chart:after{content:"";position:absolute;left:15px;right:15px;bottom:32px;height:45px;border-top:3px solid var(--green);transform:skewY(-12deg)}.panel-side{border:1px solid var(--line);border-radius:10px;padding:13px;font-size:11px;color:var(--muted)}.panel-side div{padding:9px 0;border-bottom:1px solid var(--line)}.panel-side div:last-child{border:0}.panel-side strong{display:block;color:var(--ink);font-size:16px}
.download{background:#e9f3e9}.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.download-copy p{color:var(--muted);max-width:530px;margin:16px 0 23px}.platforms{display:flex;gap:9px;margin-bottom:25px}.platform{border:1px solid #c9dacb;background:#fff;border-radius:8px;padding:7px 12px;color:var(--green);font-weight:800;font-size:12px}
.phone-area{display:flex;justify-content:center;align-items:center;gap:25px}.phone{width:190px;height:348px;border:8px solid #1c2c24;border-radius:27px;background:#fff;box-shadow:var(--shadow);padding:13px 10px;position:relative}.phone:before{content:"";width:55px;height:5px;background:#1c2c24;border-radius:5px;position:absolute;top:5px;left:calc(50% - 27px)}.phone-screen{height:100%;border-radius:15px;background:#eff7ef;padding:16px 10px}.phone-screen h4{font-size:13px;margin:7px 0 18px}.phone-card{height:58px;background:#fff;border-radius:9px;margin:9px 0;padding:10px;font-size:10px;border:1px solid #dce9dd}.phone-card b{display:block;color:var(--green);font-size:14px}.qr-box{width:130px;height:130px;background:#fff;border:8px solid #fff;box-shadow:0 0 0 1px #c8daca;display:grid;place-items:center;position:relative}.qr-box:before{content:"";width:82px;height:82px;background:repeating-linear-gradient(45deg,#173d2b 0 4px,#fff 4px 8px);opacity:.82}.qr-box span{position:absolute;background:#fff;color:var(--green);font-size:10px;padding:2px 4px}
.steps{display:grid;grid-template-columns:1fr 1fr;gap:18px 42px;counter-reset:step}.step{display:grid;grid-template-columns:45px 1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}.step:before{counter-increment:step;content:counter(step,decimal-leading-zero);font-size:17px;font-weight:900;color:var(--green);background:var(--soft);width:45px;height:45px;border-radius:13px;display:grid;place-items:center}.step h3{font-size:17px}.step p{font-size:13px;color:var(--muted);margin-top:3px}
.topic-strip{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px}.topic{min-height:180px;padding:25px;border-radius:var(--radius);position:relative;overflow:hidden;color:#fff;background:var(--deep)}.topic:nth-child(2){background:#55775e}.topic:nth-child(3){background:#b8794d}.topic small{opacity:.72}.topic h3{font-size:21px;line-height:1.35;margin:28px 0 8px;max-width:240px}.topic a{font-size:13px;color:var(--mint)}
.faq-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}.faq-intro p{color:var(--muted);margin-top:15px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:19px 0}summary{cursor:pointer;list-style:none;font-weight:800;font-size:16px;display:flex;justify-content:space-between;gap:20px}summary::-webkit-details-marker{display:none}summary:after{content:"+";font-size:23px;color:var(--green);font-weight:400}details[open] summary:after{content:"−"}details p{color:var(--muted);font-size:14px;margin:11px 32px 0 0}
.cta{padding:68px 0;background:var(--orange)}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:clamp(25px,3.4vw,40px);line-height:1.2}.cta p{margin-top:9px;color:#664d36}.cta .btn-dark{background:var(--deep);color:#fff}
footer{background:var(--deep);color:#cad8ce;padding:52px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.13)}footer .logo{color:#fff}footer .logo-mark{background:var(--mint)}footer .logo-mark:before{border-color:var(--deep)}.footer-desc{font-size:13px;color:#9fb1a5;max-width:285px;margin-top:15px}.footer-col h4{color:#fff;font-size:14px;margin-bottom:13px}.footer-col a{display:block;color:#a9baae;font-size:13px;margin:8px 0;transition:.2s}.footer-col a:hover{color:var(--mint);transform:translateX(3px)}.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#82968a;font-size:12px}.risk{max-width:550px;text-align:right}
:focus-visible{outline:3px solid rgba(25,137,87,.35);outline-offset:3px}
@media(max-width:1024px){.nav-wrap{gap:18px}.nav a{padding:8px 8px}.hero-grid{gap:35px}.quick-grid{grid-template-columns:1fr 1fr}.quick:first-child{grid-column:span 2}.entry-grid{gap:35px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}}
@media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.topline .container{height:auto;min-height:36px;padding:7px 0}.topline .container>span{display:none}.nav-wrap{height:66px}.nav{display:none;position:absolute;top:66px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:13px 16px;flex-direction:column;align-items:stretch;box-shadow:0 12px 22px rgba(20,40,30,.08)}.nav.open{display:flex}.nav a{padding:12px 14px}.nav-actions{margin-left:auto}.nav-actions .btn{display:none}.menu-btn{display:block}.hero{padding:54px 0}.hero-grid,.entry-grid,.download-grid,.faq-wrap{grid-template-columns:1fr}.hero-copy{font-size:16px}.browser-scene{margin:10px 8px 25px}.news-layout{grid-template-columns:1fr}.feature-news{grid-template-columns:1fr}.news-visual{min-height:220px}.section{padding:66px 0}.section-head{display:block}.section-lead{margin-top:12px}.phone-area{justify-content:flex-start}.steps{grid-template-columns:1fr}.topic-strip{grid-template-columns:1fr}.cta-inner{display:block}.cta .btn{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.risk{text-align:left;margin-top:9px}}
@media(max-width:520px){h1{font-size:38px;letter-spacing:-1.5px}.hero-actions .btn{flex:1}.quick-grid{grid-template-columns:1fr}.quick:first-child{grid-column:auto}.screen-layout,.panel-content{grid-template-columns:1fr}.float-card{right:-8px}.news-copy{padding:25px 22px}.news-copy h3{font-size:22px}.phone-area{gap:14px;align-items:flex-end}.phone{width:158px;height:300px}.qr-box{width:105px;height:105px}.qr-box:before{width:67px;height:67px}.footer-grid{grid-template-columns:1fr}.logo{font-size:17px}}

/* roulang page: category1 */
:root{
      --ink:#17211d;
      --muted:#68736d;
      --line:#dfe6df;
      --paper:#f5f7f2;
      --card:#fff;
      --deep:#17251f;
      --deep-2:#21362d;
      --mint:#b9efcf;
      --green:#198957;
      --orange:#f0a45c;
      --soft:#e9f2e9;
      --radius:18px;
      --shadow:0 16px 42px rgba(28,52,39,.09);
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .topline{height:36px;background:var(--deep);color:#b8c9be;font-size:12px}
    .topline .container{height:36px;display:flex;align-items:center;justify-content:space-between}
    .topline a{color:var(--mint);font-weight:700}
    .site-header{background:rgba(245,247,242,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:76px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:900;letter-spacing:-.5px;white-space:nowrap}
    .logo-mark{width:33px;height:33px;border-radius:10px;background:var(--green);position:relative;display:grid;place-items:center}
    .logo-mark:before{content:"";width:14px;height:14px;border:3px solid #fff;border-radius:50%}
    .logo-mark:after{content:"";position:absolute;width:7px;height:3px;background:var(--orange);transform:rotate(-42deg);right:2px;top:7px;border-radius:4px}
    .nav{display:flex;align-items:center;gap:7px;margin-left:auto}
    .nav a{font-size:14px;color:#52605a;padding:9px 13px;border-radius:10px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--green);background:var(--soft)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 19px;border-radius:11px;font-size:14px;font-weight:800;transition:transform .2s,box-shadow .2s,background .2s}
    .btn:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(25,137,87,.16)}
    .btn:focus-visible,.nav a:focus-visible,.faq summary:focus-visible{outline:3px solid rgba(240,164,92,.5);outline-offset:3px}
    .btn-primary{background:var(--green);color:#fff}
    .btn-primary:hover{background:#117449;color:#fff}
    .btn-light{background:#edf5ed;color:var(--green);border:1px solid #d8e8da}
    .btn-dark{background:#fff;color:var(--deep)}
    .menu-btn{display:none;background:none;color:var(--ink);font-size:25px}
    .breadcrumb-wrap{padding:22px 0 0}
    .breadcrumb{margin:0;color:var(--muted);font-size:13px}
    .breadcrumb a{color:var(--green);font-weight:700}
    .page-hero{padding:48px 0 58px;background:linear-gradient(135deg,#f5f7f2 0%,#edf5ed 62%,#e5f1e8 100%)}
    .page-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:end}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-weight:800;font-size:13px;margin-bottom:16px}
    .eyebrow:before{content:"";width:25px;height:2px;background:var(--orange)}
    h1,h2,h3,h4,p{margin-top:0}
    h1{font-size:clamp(34px,5vw,62px);line-height:1.13;letter-spacing:-2px;margin-bottom:20px;font-weight:900}
    h2{font-size:clamp(27px,3.5vw,42px);line-height:1.2;letter-spacing:-1.3px;margin-bottom:12px;font-weight:900}
    h3{font-size:21px;line-height:1.4;font-weight:850}
    .hero-copy{font-size:17px;color:var(--muted);max-width:650px;margin-bottom:25px}
    .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:23px}
    .tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:#e4f5e7;color:var(--green);font-size:12px;font-weight:800}
    .tag.orange{background:#fff0df;color:#b66a21}
    .update-board{background:var(--deep);color:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .update-board:after{content:"";position:absolute;width:150px;height:150px;border:1px solid rgba(185,239,207,.23);border-radius:50%;right:-54px;top:-48px}
    .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.15);padding-bottom:17px;margin-bottom:18px}
    .board-top small{color:var(--mint);font-weight:800}
    .board-status{display:flex;align-items:center;gap:7px;font-size:12px;color:#b8c9be}
    .board-status i{width:7px;height:7px;background:var(--orange);border-radius:50%;display:inline-block}
    .board-row{display:grid;grid-template-columns:42px 1fr auto;gap:12px;align-items:center;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.11)}
    .board-row:last-child{border-bottom:0}
    .board-no{font-size:24px;color:var(--mint);font-weight:900}
    .board-row strong{display:block;font-size:14px}
    .board-row span{display:block;color:#aebfb3;font-size:12px;margin-top:3px}
    .board-arrow{color:var(--orange);font-size:20px}
    .section{padding:84px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:28px}
    .section-kicker{font-size:13px;color:var(--green);font-weight:900;letter-spacing:1px}
    .section-lead{max-width:540px;color:var(--muted);font-size:15px}
    .filter-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px 14px;margin-bottom:28px}
    .filter-list{display:flex;flex-wrap:wrap;gap:7px}
    .filter{padding:8px 14px;border-radius:9px;background:transparent;color:var(--muted);font-size:13px;font-weight:800;transition:.2s}
    .filter:hover,.filter.active{background:var(--soft);color:var(--green)}
    .filter-note{font-size:12px;color:#87938b;white-space:nowrap}
    .content-grid{display:grid;grid-template-columns:1.45fr .75fr;gap:22px;align-items:start}
    .feature-card{background:var(--deep);border-radius:var(--radius);color:#fff;overflow:hidden;box-shadow:var(--shadow)}
    .feature-visual{height:238px;padding:23px;background:linear-gradient(145deg,#294e3c,#17251f);position:relative}
    .visual-window{height:100%;border:1px solid rgba(255,255,255,.2);border-radius:13px;background:rgba(255,255,255,.08);padding:15px}
    .window-bar{display:flex;gap:6px;margin-bottom:24px}
    .window-bar i{width:7px;height:7px;border-radius:50%;background:var(--orange)}
    .window-bar i:nth-child(2){background:var(--mint)}
    .window-bar i:nth-child(3){background:#d7e6da}
    .visual-line{height:13px;width:62%;background:var(--mint);border-radius:4px;margin-bottom:16px}
    .visual-blocks{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:9px}
    .visual-blocks span{height:76px;border-radius:9px;background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.1)}
    .visual-blocks span:nth-child(2){background:rgba(240,164,92,.28)}
    .feature-body{padding:27px}
    .feature-body h3{font-size:26px;max-width:640px;margin:15px 0 10px}
    .feature-body p{color:#b7c8bc;font-size:14px;max-width:650px;margin-bottom:22px}
    .feature-foot{display:flex;align-items:center;justify-content:space-between;gap:15px;color:#aebfb3;font-size:12px}
    .news-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 22px}
    .news-item{display:grid;grid-template-columns:38px 1fr;gap:13px;padding:20px 0;border-bottom:1px solid var(--line)}
    .news-item:last-child{border-bottom:0}
    .news-item .number{font-size:22px;font-weight:900;color:var(--green);line-height:1.2}
    .news-item h4{font-size:15px;line-height:1.45;margin-bottom:4px}
    .news-item p{font-size:12px;color:var(--muted);margin-bottom:4px}
    .news-item time{font-size:11px;color:#93a098}
    .side-stack{display:grid;gap:16px}
    .side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px}
    .side-card h3{font-size:18px;margin-bottom:15px}
    .side-links{display:grid;gap:12px}
    .side-links a{display:flex;justify-content:space-between;gap:12px;padding-bottom:11px;border-bottom:1px solid #edf1ed;font-size:13px;font-weight:700;transition:.2s}
    .side-links a:last-child{border-bottom:0;padding-bottom:0}
    .side-links a:hover{color:var(--green);padding-left:4px}
    .side-links span{color:var(--orange)}
    .download-card{background:var(--soft);border-radius:var(--radius);padding:24px}
    .download-card p{font-size:13px;color:var(--muted);margin-bottom:17px}
    .timeline-section{background:#fff}
    .timeline-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px;align-items:start}
    .timeline-intro{position:sticky;top:110px}
    .timeline-intro p{color:var(--muted);font-size:15px}
    .timeline{position:relative;padding-left:32px}
    .timeline:before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:1px;background:#cbd9cd}
    .timeline-entry{position:relative;padding:0 0 30px}
    .timeline-entry:before{content:"";position:absolute;left:-30px;top:8px;width:15px;height:15px;border:4px solid var(--paper);background:var(--green);border-radius:50%;box-shadow:0 0 0 1px var(--green)}
    .timeline-entry time{font-size:12px;color:var(--green);font-weight:900}
    .timeline-entry h3{font-size:19px;margin:7px 0 5px}
    .timeline-entry p{font-size:14px;color:var(--muted);margin-bottom:0}
    .topic-section{background:var(--deep);color:#fff}
    .topic-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:15px}
    .topic-card{border:1px solid rgba(255,255,255,.14);border-radius:15px;padding:23px;background:rgba(255,255,255,.055);transition:.2s}
    .topic-card:hover{transform:translateY(-4px);border-color:var(--mint);background:rgba(255,255,255,.09)}
    .topic-card .topic-index{color:var(--mint);font-size:12px;font-weight:900}
    .topic-card h3{font-size:19px;margin:14px 0 8px}
    .topic-card p{font-size:13px;color:#b7c8bc;margin-bottom:18px}
    .topic-card a{color:var(--mint);font-size:13px;font-weight:800}
    .faq-section{background:#edf4ed}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:62px}
    .faq-intro p{color:var(--muted);font-size:15px}
    .faq-list{display:grid;gap:10px}
    .faq{background:#fff;border:1px solid var(--line);border-radius:13px;padding:0 19px}
    .faq summary{list-style:none;cursor:pointer;padding:18px 0;font-weight:850;display:flex;justify-content:space-between;gap:20px}
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:after{content:"+";color:var(--green);font-size:20px;line-height:1}
    .faq[open] summary:after{content:"−"}
    .faq p{border-top:1px solid var(--line);padding:14px 0 17px;color:var(--muted);font-size:14px;margin-bottom:0}
    .cta{padding:60px 0}
    .cta-box{background:var(--green);color:#fff;border-radius:var(--radius);padding:34px 40px;display:flex;justify-content:space-between;align-items:center;gap:28px}
    .cta-box h2{font-size:30px;margin-bottom:8px}
    .cta-box p{color:#d6f2df;margin-bottom:0;font-size:14px}
    footer{background:var(--deep);color:#fff;padding:57px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px}
    .footer-desc{color:#b7c8bc;font-size:13px;max-width:300px;margin-top:17px}
    .footer-col{display:grid;align-content:start;gap:9px}
    .footer-col h4{font-size:14px;margin-bottom:6px;color:var(--mint)}
    .footer-col a{font-size:13px;color:#b7c8bc;transition:.2s}
    .footer-col a:hover{color:#fff;padding-left:3px}
    .copyright{border-top:1px solid rgba(255,255,255,.13);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#91a79a;font-size:11px}
    .risk{text-align:right}
    @media(max-width:1024px){
      .nav-wrap{gap:18px}.nav a{padding:8px 8px}
      .page-hero-grid,.timeline-grid{gap:35px}
      .content-grid{grid-template-columns:1fr}
      .side-stack{grid-template-columns:1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .topline .container{font-size:11px}
      .topline .container span{display:none}
      .nav-wrap{height:68px}
      .nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}
      .nav a{padding:11px 13px}
      .nav-actions .btn{display:none}
      .menu-btn{display:block}
      .page-hero{padding:38px 0 45px}
      .page-hero-grid,.timeline-grid,.faq-grid{grid-template-columns:1fr}
      h1{letter-spacing:-1.2px}
      .update-board{margin-top:8px}
      .section{padding:62px 0}
      .filter-bar{align-items:flex-start;flex-direction:column}
      .filter-note{white-space:normal}
      .side-stack{grid-template-columns:1fr}
      .timeline-intro{position:static}
      .topic-grid{grid-template-columns:1fr}
      .cta-box{align-items:flex-start;flex-direction:column;padding:28px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .copyright{flex-direction:column;gap:8px}
      .risk{text-align:left}
    }
    @media(max-width:520px){
      .logo{font-size:16px;gap:8px}
      .logo-mark{width:30px;height:30px}
      .page-hero-grid{display:block}
      .hero-copy{font-size:15px}
      .update-board{margin-top:28px;padding:20px}
      .feature-visual{height:190px;padding:16px}
      .feature-body{padding:21px}
      .feature-body h3{font-size:21px}
      .feature-foot{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr}
      .footer-col{gap:7px}
    }

/* roulang page: category2 */
:root{
      --ink:#17211d;
      --muted:#68736d;
      --line:#dfe6df;
      --paper:#f5f7f2;
      --card:#ffffff;
      --deep:#17251f;
      --deep-2:#21362d;
      --mint:#b9efcf;
      --green:#198957;
      --orange:#f0a45c;
      --soft:#e9f2e9;
      --radius:18px;
      --shadow:0 16px 42px rgba(28,52,39,.09);
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:var(--paper);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .topline{background:var(--deep);color:#b8c8bd;font-size:12px}
    .topline .container{height:36px;display:flex;align-items:center;justify-content:space-between}
    .topline a{color:var(--mint);font-weight:700}
    .site-header{
      background:rgba(245,247,242,.94);
      border-bottom:1px solid var(--line);
      position:sticky;
      top:0;
      z-index:20;
      backdrop-filter:blur(14px);
    }
    .nav-wrap{height:76px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:900;letter-spacing:-.5px;white-space:nowrap}
    .logo-mark{
      width:33px;height:33px;border-radius:10px;background:var(--green);
      position:relative;display:grid;place-items:center
    }
    .logo-mark:before{content:"";width:14px;height:14px;border:3px solid #fff;border-radius:50%}
    .logo-mark:after{
      content:"";position:absolute;width:7px;height:3px;background:var(--orange);
      transform:rotate(-42deg);right:2px;top:7px;border-radius:4px
    }
    .nav{display:flex;align-items:center;gap:7px;margin-left:auto}
    .nav a{
      font-size:14px;color:#52605a;padding:9px 13px;border-radius:10px;
      transition:.2s
    }
    .nav a:hover,.nav a.active{color:var(--green);background:var(--soft)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      padding:12px 19px;border-radius:11px;font-size:14px;font-weight:800;
      transition:transform .2s,box-shadow .2s,background .2s
    }
    .btn:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(25,137,87,.16)}
    .btn:focus-visible,.menu-btn:focus-visible,.faq-question:focus-visible{
      outline:3px solid rgba(240,164,92,.55);outline-offset:3px
    }
    .btn-primary{background:var(--green);color:#fff}
    .btn-primary:hover{background:#117449}
    .btn-light{background:#edf5ed;color:var(--green);border:1px solid #d8e8da}
    .btn-dark{background:#fff;color:var(--deep)}
    .menu-btn{display:none;background:none;color:var(--ink);font-size:25px}
    .crumbbar{padding:22px 0 0;color:var(--muted);font-size:13px}
    .crumbbar a{color:var(--green);font-weight:700}
    .crumbbar span{margin:0 8px;color:#9aa69e}
    .page-hero{padding:38px 0 74px}
    .page-hero-grid{display:grid;grid-template-columns:1fr .9fr;gap:70px;align-items:center}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;color:var(--green);
      font-weight:800;font-size:13px;margin-bottom:18px
    }
    .eyebrow:before{content:"";width:25px;height:2px;background:var(--orange)}
    h1,h2,h3,h4,p{margin-top:0}
    h1{
      font-size:clamp(38px,5vw,68px);line-height:1.12;
      letter-spacing:-2.5px;margin-bottom:22px
    }
    .hero-copy{font-size:18px;color:var(--muted);max-width:590px;margin:0 0 28px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .meta-row{display:flex;flex-wrap:wrap;gap:20px;color:#718078;font-size:13px;margin-top:24px}
    .meta-row span{display:flex;align-items:center;gap:7px}
    .meta-row b{color:var(--ink)}
    .device-stage{
      min-height:420px;border-radius:28px;background:var(--deep);
      position:relative;display:flex;align-items:center;justify-content:center;
      overflow:hidden;padding:35px
    }
    .device-stage:before,.device-stage:after{
      content:"";position:absolute;border:1px solid rgba(185,239,207,.18);
      border-radius:50%
    }
    .device-stage:before{width:430px;height:430px}
    .device-stage:after{width:300px;height:300px}
    .phone{
      position:relative;z-index:1;width:218px;height:378px;background:#f7faf6;
      border:8px solid #304b3e;border-radius:31px;
      box-shadow:0 22px 45px rgba(0,0,0,.28);overflow:hidden
    }
    .phone-top{height:28px;background:#edf3ec;display:flex;align-items:center;justify-content:center}
    .phone-speaker{width:52px;height:5px;border-radius:5px;background:#b6c8ba}
    .phone-screen{padding:18px 14px}
    .phone-brand{font-size:12px;font-weight:900;color:var(--green);margin-bottom:17px}
    .phone-banner{height:76px;border-radius:13px;background:var(--deep-2);padding:13px;color:#fff}
    .phone-banner small{font-size:9px;color:var(--mint)}
    .phone-banner strong{display:block;font-size:16px;margin-top:7px}
    .phone-row{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e0e8e0;padding:14px 0;font-size:10px;color:var(--muted)}
    .phone-row b{color:var(--green)}
    .device-note{
      position:absolute;right:20px;bottom:24px;background:#fff;color:var(--ink);
      padding:13px 16px;border-radius:14px;box-shadow:var(--shadow);font-size:12px;
      z-index:2
    }
    .device-note strong{display:block;color:var(--green);font-size:16px}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-kicker{font-size:13px;color:var(--green);font-weight:900;letter-spacing:1px}
    .section h2{font-size:clamp(27px,3.5vw,42px);line-height:1.2;letter-spacing:-1.3px;margin:8px 0 0}
    .section-lead{max-width:540px;color:var(--muted);font-size:15px;margin-bottom:0}
    .download-panel{
      background:var(--deep);color:#fff;border-radius:var(--radius);
      padding:48px 52px;display:grid;grid-template-columns:1fr .86fr;gap:60px;
      align-items:center
    }
    .download-panel .section-lead{color:#b7c8bc}
    .tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:#e4f5e7;color:var(--green);font-size:12px;font-weight:800}
    .tag.dark{background:rgba(185,239,207,.14);color:var(--mint)}
    .download-panel h2{margin:16px 0 15px;font-size:clamp(28px,4vw,44px);line-height:1.22}
    .platforms{display:flex;gap:9px;margin:25px 0 22px;flex-wrap:wrap}
    .platform{border:1px solid #c9dacb;background:#fff;border-radius:8px;padding:7px 12px;color:var(--green);font-weight:800;font-size:12px}
    .download-actions{display:flex;flex-wrap:wrap;gap:11px}
    .download-detail{display:grid;grid-template-columns:130px 1fr;gap:25px;align-items:center}
    .qr{
      width:130px;height:130px;border-radius:14px;background:#fff;padding:11px;
      display:grid;place-items:center
    }
    .qr-pattern{
      width:100%;height:100%;
      background:
       linear-gradient(90deg,#17251f 10%,transparent 10% 18%,#17251f 18% 28%,transparent 28% 39%,#17251f 39% 48%,transparent 48% 58%,#17251f 58% 75%,transparent 75% 84%,#17251f 84%),
       linear-gradient(#17251f 10%,transparent 10% 22%,#17251f 22% 34%,transparent 34% 47%,#17251f 47% 59%,transparent 59% 72%,#17251f 72% 86%,transparent 86%);
      opacity:.92
    }
    .download-detail h3{font-size:20px;margin-bottom:8px}
    .download-detail p{font-size:13px;color:#b7c8bc;margin-bottom:0}
    .steps-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:55px;align-items:start}
    .steps{border-top:1px solid var(--line)}
    .step{
      display:grid;grid-template-columns:62px 1fr;gap:20px;
      padding:23px 0;border-bottom:1px solid var(--line)
    }
    .step-number{
      width:44px;height:44px;border-radius:13px;background:var(--soft);
      color:var(--green);display:grid;place-items:center;font-weight:900;font-size:18px
    }
    .step h3{font-size:18px;margin:0 0 5px}
    .step p{font-size:14px;color:var(--muted);margin-bottom:0}
    .info-card{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius);
      padding:28px;box-shadow:var(--shadow)
    }
    .info-card h3{font-size:21px;margin-bottom:18px}
    .check-list{padding:0;margin:0;list-style:none}
    .check-list li{
      position:relative;padding:12px 0 12px 27px;border-bottom:1px solid #edf1ed;
      color:#52605a;font-size:14px
    }
    .check-list li:last-child{border-bottom:0}
    .check-list li:before{content:"✓";position:absolute;left:0;top:11px;color:var(--green);font-weight:900}
    .notice{
      margin-top:20px;background:#fff8ed;border:1px solid #f2dfc2;
      border-radius:13px;padding:15px 17px;color:#775b39;font-size:13px
    }
    .version-section{background:#edf4ed}
    .version-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
    .version-main,.version-side{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px
    }
    .version-main{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center}
    .version-main h3,.version-side h3{font-size:22px;margin-bottom:8px}
    .version-main p,.version-side p{font-size:14px;color:var(--muted);margin-bottom:0}
    .version-badge{display:inline-flex;color:var(--green);background:var(--soft);padding:6px 10px;border-radius:8px;font-size:12px;font-weight:800;margin-bottom:12px}
    .update-list{margin:0;padding:0;list-style:none}
    .update-list li{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
    .update-list li:last-child{border-bottom:0}
    .update-list time{color:#89958e;white-space:nowrap;font-size:12px}
    .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px}
    .faq-intro h2{margin-bottom:16px}
    .faq-intro p{color:var(--muted);font-size:15px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{
      width:100%;display:flex;align-items:center;justify-content:space-between;
      gap:20px;background:none;text-align:left;padding:20px 0;color:var(--ink);
      font-size:16px;font-weight:800
    }
    .faq-question span:last-child{color:var(--green);font-size:23px;font-weight:400;line-height:1}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 0}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{
      background:var(--green);color:#fff;border-radius:var(--radius);
      padding:38px 45px;display:flex;align-items:center;justify-content:space-between;
      gap:30px
    }
    .cta h2{font-size:30px;margin-bottom:8px;line-height:1.25}
    .cta p{color:#d5f0dd;margin-bottom:0;font-size:14px}
    footer{background:var(--deep);color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-desc{color:#aebeb3;font-size:13px;max-width:300px;margin:18px 0 0}
    .footer-col{display:flex;flex-direction:column;gap:9px}
    .footer-col h4{font-size:14px;color:#fff;margin-bottom:8px}
    .footer-col a{color:#aebeb3;font-size:13px;transition:.2s}
    .footer-col a:hover{color:var(--mint);padding-left:3px}
    .copyright{
      border-top:1px solid rgba(255,255,255,.13);padding-top:19px;
      display:flex;justify-content:space-between;gap:25px;color:#91a198;font-size:12px
    }
    .risk{text-align:right}
    @media(max-width:1024px){
      .nav-wrap{gap:16px}
      .nav a{padding:8px 8px}
      .page-hero-grid,.download-panel,.steps-wrap,.faq-grid{gap:35px}
      .download-panel{padding:38px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .topline .container{height:auto;min-height:36px;padding:7px 0}
      .topline .container span{display:none}
      .nav-wrap{height:68px}
      .nav{
        display:none;position:absolute;left:16px;right:16px;top:69px;
        background:#fff;border:1px solid var(--line);border-radius:15px;
        box-shadow:var(--shadow);padding:10px;flex-direction:column;align-items:stretch
      }
      .nav.show{display:flex}
      .nav a{padding:12px 14px}
      .menu-btn{display:block}
      .nav-actions .btn{display:none}
      .crumbbar{padding-top:18px}
      .page-hero{padding:28px 0 55px}
      .page-hero-grid,.download-panel,.steps-wrap,.faq-grid,.version-grid{grid-template-columns:1fr}
      h1{font-size:clamp(36px,11vw,54px);letter-spacing:-1.8px}
      .hero-copy{font-size:16px}
      .device-stage{min-height:390px}
      .download-panel{padding:30px 24px}
      .download-detail{grid-template-columns:110px 1fr;gap:17px}
      .qr{width:110px;height:110px}
      .section{padding:65px 0}
      .section-head{display:block}
      .section-lead{margin-top:15px}
      .version-main{grid-template-columns:1fr}
      .cta{display:block;padding:30px 25px}
      .cta .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .copyright{display:block}
      .risk{text-align:left;margin-top:10px}
    }
    @media(max-width:520px){
      .logo{font-size:16px;gap:8px}
      .logo-mark{width:29px;height:29px;border-radius:8px}
      .hero-actions,.download-actions{display:grid;grid-template-columns:1fr}
      .hero-actions .btn,.download-actions .btn{width:100%}
      .device-stage{padding:20px;min-height:360px}
      .phone{transform:scale(.88)}
      .device-note{right:10px;bottom:12px}
      .download-detail{grid-template-columns:1fr}
      .qr{margin:auto}
      .step{grid-template-columns:48px 1fr;gap:14px}
      .step-number{width:38px;height:38px;font-size:16px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
      .copyright{font-size:11px}
    }

/* roulang page: category3 */
:root{
 --ink:#17211d;
 --muted:#68736d;
 --line:#dfe6df;
 --paper:#f5f7f2;
 --card:#ffffff;
 --deep:#17251f;
 --deep-2:#21362d;
 --mint:#b9efcf;
 --green:#198957;
 --orange:#f0a45c;
 --soft:#e9f2e9;
 --radius:18px;
 --shadow:0 16px 42px rgba(28,52,39,.09);
 --container:1220px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{border:0;cursor:pointer}
img{display:block;max-width:100%}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.topline{background:var(--deep);color:#b7c8bc;font-size:12px}
.topline .container{height:36px;display:flex;align-items:center;justify-content:space-between}
.topline a{color:var(--mint);font-weight:700}
.site-header{background:rgba(245,247,242,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:900;letter-spacing:-.5px;white-space:nowrap}
.logo-mark{width:33px;height:33px;border-radius:10px;background:var(--green);position:relative;display:grid;place-items:center}
.logo-mark:before{content:"";width:14px;height:14px;border:3px solid #fff;border-radius:50%}
.logo-mark:after{content:"";position:absolute;width:7px;height:3px;background:var(--orange);transform:rotate(-42deg);right:2px;top:7px;border-radius:4px}
.nav{display:flex;align-items:center;gap:7px;margin-left:auto}
.nav a{font-size:14px;color:#52605a;padding:9px 13px;border-radius:10px;transition:.2s}
.nav a:hover,.nav a.active{color:var(--green);background:var(--soft)}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 19px;border-radius:11px;font-size:14px;font-weight:800;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(25,137,87,.16)}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:#117449;color:#fff}
.btn-light{background:#edf5ed;color:var(--green);border:1px solid #d8e8da}
.btn-dark{background:#fff;color:var(--deep)}
.btn-outline{border:1px solid #bcd2c1;color:var(--green);background:transparent}
.btn:focus-visible,.nav a:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(240,164,92,.55);outline-offset:3px}
.menu-btn{display:none;background:none;color:var(--ink);font-size:25px}
.breadcrumbs{padding:25px 0 0;color:var(--muted);font-size:13px}
.breadcrumbs a{color:var(--green);font-weight:700}
.page-hero{padding:54px 0 66px}
.page-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:65px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-weight:800;font-size:13px;margin-bottom:16px}
.eyebrow:before{content:"";width:25px;height:2px;background:var(--orange)}
h1,h2,h3,h4,p{margin-top:0}
h1{font-size:clamp(36px,5vw,64px);line-height:1.13;letter-spacing:-2.3px;margin-bottom:22px}
h2{font-size:clamp(27px,3.5vw,42px);line-height:1.2;letter-spacing:-1.3px}
h3{font-size:21px;line-height:1.4}
.page-intro{max-width:650px;color:var(--muted);font-size:17px;margin-bottom:28px}
.meta-row{display:flex;flex-wrap:wrap;gap:18px;color:#718078;font-size:13px}
.meta-row span{display:flex;align-items:center;gap:7px}
.meta-row b{color:var(--ink)}
.guide-visual{background:var(--deep);border-radius:22px;padding:25px;color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
.guide-visual:after{content:"";position:absolute;width:240px;height:240px;border:1px solid rgba(185,239,207,.2);border-radius:50%;right:-80px;bottom:-100px}
.visual-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.15);padding-bottom:18px}
.visual-top small{color:#b7c8bc}
.visual-top strong{color:var(--mint)}
.visual-list{display:grid;gap:12px;margin-top:22px}
.visual-step{display:grid;grid-template-columns:38px 1fr auto;align-items:center;gap:13px;padding:15px;border-radius:13px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1)}
.visual-number{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--mint);color:var(--deep);font-weight:900;font-size:13px}
.visual-step span{font-size:13px;color:#d7e4d9}
.visual-step b{font-size:12px;color:var(--orange)}
.section{padding:82px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
.section-kicker{font-size:13px;color:var(--green);font-weight:900;letter-spacing:1px}
.section-head h2{margin:8px 0 0}
.section-lead{max-width:520px;color:var(--muted);font-size:15px;margin-bottom:0}
.guide-layout{display:grid;grid-template-columns:260px 1fr 260px;gap:24px;align-items:start}
.guide-nav,.side-card,.step-card,.note-card,.faq-box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 24px rgba(28,52,39,.045)}
.guide-nav{padding:18px;position:sticky;top:102px}
.guide-nav h3{font-size:16px;margin-bottom:13px}
.guide-nav a{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:14px;padding:11px 12px;border-radius:9px;margin:3px 0;transition:.2s}
.guide-nav a:hover,.guide-nav a.active{color:var(--green);background:var(--soft);font-weight:800}
.guide-nav a span{font-size:16px}
.steps{display:grid;gap:16px}
.step-card{padding:25px 27px;display:grid;grid-template-columns:62px 1fr;gap:20px;transition:.2s}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.step-index{width:52px;height:52px;border-radius:15px;background:var(--soft);color:var(--green);display:grid;place-items:center;font-size:22px;font-weight:900}
.step-card h3{margin-bottom:8px}
.step-card p{color:var(--muted);font-size:14px;margin-bottom:0}
.tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:#e4f5e7;color:var(--green);font-size:12px;font-weight:800;margin-bottom:12px}
.tag.orange{background:#fff0df;color:#b86c23}
.side-stack{display:grid;gap:16px}
.side-card{padding:21px}
.side-card h3{font-size:17px;margin-bottom:13px}
.side-card p{font-size:13px;color:var(--muted)}
.side-links{display:grid;gap:8px}
.side-links a{font-size:13px;color:var(--green);font-weight:700;padding:8px 0;border-bottom:1px solid var(--line)}
.side-links a:last-child{border-bottom:0}
.download-mini{background:var(--deep);color:#fff;border-radius:var(--radius);padding:22px}
.download-mini p{color:#b7c8bc;font-size:13px}
.download-mini .btn{width:100%;margin-top:8px}
.notice-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.note-card{padding:25px 28px;display:flex;gap:17px;align-items:flex-start}
.note-icon{width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:#fff0df;color:#b86c23;display:grid;place-items:center;font-weight:900}
.note-card h3{font-size:18px;margin-bottom:7px}
.note-card p{font-size:14px;color:var(--muted);margin:0}
.faq-section{background:#edf4ed}
.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px;align-items:start}
.faq-list{display:grid;gap:10px}
.faq-box{overflow:hidden}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;background:#fff;color:var(--ink);padding:18px 21px;font-weight:800;font-size:15px}
.faq-question span{font-size:22px;color:var(--green);transition:.2s}
.faq-answer{display:none;padding:0 21px 19px;color:var(--muted);font-size:14px}
.faq-box.open .faq-answer{display:block}
.faq-box.open .faq-question span{transform:rotate(45deg)}
.cta{background:var(--deep);color:#fff;border-radius:24px;padding:45px 52px;display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta h2{margin-bottom:10px}
.cta p{color:#b7c8bc;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:11px;flex-shrink:0}
footer{background:var(--deep);color:#fff;padding:66px 0 25px;margin-top:82px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
.footer-desc{color:#b7c8bc;font-size:14px;max-width:300px;margin-top:18px}
.footer-col{display:grid;align-content:start;gap:9px}
.footer-col h4{font-size:14px;color:var(--mint);margin-bottom:7px}
.footer-col a{font-size:13px;color:#c3d1c6;transition:.2s}
.footer-col a:hover{color:var(--orange);padding-left:3px}
.copyright{border-top:1px solid rgba(255,255,255,.14);padding-top:21px;display:flex;justify-content:space-between;gap:20px;color:#91a69a;font-size:12px}
.risk{color:#b6c5b9;text-align:right}
@media(max-width:1024px){
 .page-hero-grid{gap:35px}
 .guide-layout{grid-template-columns:220px 1fr}
 .side-stack{grid-column:1/-1;grid-template-columns:1fr 1fr}
 .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media(max-width:768px){
 .container{width:min(var(--container),calc(100% - 32px))}
 .topline .container{height:auto;min-height:36px;padding:7px 0}
 .nav-wrap{height:68px;gap:15px}
 .nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .nav.show{display:flex}
 .nav a{padding:12px 14px}
 .nav-actions{margin-left:auto}
 .nav-actions .btn{display:none}
 .menu-btn{display:block}
 .page-hero{padding:42px 0 50px}
 .page-hero-grid{grid-template-columns:1fr;gap:32px}
 h1{letter-spacing:-1.5px}
 .section{padding:60px 0}
 .section-head{display:block}
 .section-lead{margin-top:14px}
 .guide-layout{grid-template-columns:1fr}
 .guide-nav{position:static}
 .side-stack{grid-column:auto;grid-template-columns:1fr}
 .notice-grid{grid-template-columns:1fr}
 .faq-layout{grid-template-columns:1fr;gap:28px}
 .cta{display:block;padding:34px 25px}
 .cta-actions{margin-top:24px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
 .footer-grid>div:first-child{grid-column:1/-1}
 .copyright{display:block}
 .risk{text-align:left;margin-top:10px}
}
@media(max-width:520px){
 .logo{font-size:16px;gap:8px}
 .logo-mark{width:29px;height:29px;border-radius:8px}
 .logo-mark:before{width:12px;height:12px;border-width:2px}
 .guide-visual{padding:18px}
 .step-card{grid-template-columns:1fr;gap:14px;padding:21px}
 .step-index{width:44px;height:44px;font-size:19px}
 .note-card{padding:20px}
 .footer-grid{grid-template-columns:1fr}
 .footer-grid>div:first-child{grid-column:auto}
}

/* roulang page: category4 */
:root{
 --ink:#17211d;
 --muted:#68736d;
 --line:#dfe6df;
 --paper:#f5f7f2;
 --card:#fff;
 --deep:#17251f;
 --deep-2:#21362d;
 --mint:#b9efcf;
 --green:#198957;
 --orange:#f0a45c;
 --soft:#e9f2e9;
 --warning:#fff2df;
 --radius:18px;
 --shadow:0 16px 42px rgba(28,52,39,.09);
 --container:1220px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{border:0;cursor:pointer}
img{display:block;max-width:100%}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.topline{height:36px;background:var(--deep);color:#c5d4c9;font-size:12px}
.topline .container{height:36px;display:flex;align-items:center;justify-content:space-between}
.topline a{color:var(--mint);font-weight:700}
.site-header{background:rgba(245,247,242,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:900;letter-spacing:-.5px;white-space:nowrap}
.logo-mark{width:33px;height:33px;border-radius:10px;background:var(--green);position:relative;display:grid;place-items:center}
.logo-mark:before{content:"";width:14px;height:14px;border:3px solid #fff;border-radius:50%}
.logo-mark:after{content:"";position:absolute;width:7px;height:3px;background:var(--orange);transform:rotate(-42deg);right:2px;top:7px;border-radius:4px}
.nav{display:flex;align-items:center;gap:7px;margin-left:auto}
.nav a{font-size:14px;color:#52605a;padding:9px 13px;border-radius:10px;transition:.2s}
.nav a:hover,.nav a.active{color:var(--green);background:var(--soft)}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 19px;border-radius:11px;font-size:14px;font-weight:800;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(25,137,87,.16)}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:#117449}
.btn-light{background:#edf5ed;color:var(--green);border:1px solid #d8e8da}
.btn-dark{background:#fff;color:var(--deep)}
.menu-btn{display:none;background:none;color:var(--ink);font-size:25px}
.hero{padding:78px 0 66px;background:linear-gradient(135deg,#f5f7f2 0%,#edf5ed 58%,#e5f1e8 100%);overflow:hidden}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:30px}
.breadcrumb a{color:var(--green);font-weight:700}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:70px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-weight:800;font-size:13px;margin-bottom:18px}
.eyebrow:before{content:"";width:25px;height:2px;background:var(--orange)}
h1,h2,h3,h4,p{margin-top:0}
h1{font-size:clamp(36px,5vw,64px);line-height:1.13;letter-spacing:-2px;margin-bottom:20px}
.hero-copy{font-size:18px;color:var(--muted);max-width:610px;margin:0 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.meta-row{display:flex;flex-wrap:wrap;gap:20px;color:#718078;font-size:13px;margin-top:24px}
.meta-row span{display:flex;align-items:center;gap:7px}
.meta-row b{color:var(--ink)}
.hero-visual{background:var(--deep);border-radius:var(--radius);padding:22px;color:#fff;box-shadow:var(--shadow);position:relative}
.visual-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.14);padding-bottom:18px}
.visual-top strong{font-size:17px}
.visual-top span{font-size:11px;color:var(--mint);background:rgba(185,239,207,.14);padding:5px 9px;border-radius:20px}
.scoreboard{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:center;padding:27px 0;border-bottom:1px solid rgba(255,255,255,.14)}
.team{text-align:center}
.team-icon{width:48px;height:48px;margin:0 auto 8px;border-radius:14px;background:#2d4c3d;display:grid;place-items:center;color:var(--mint);font-weight:900}
.team small{display:block;color:#a8bbb0;font-size:11px}
.score{font-size:28px;font-weight:900;color:var(--mint);letter-spacing:2px}
.score small{display:block;color:#a8bbb0;font-size:10px;letter-spacing:0;font-weight:500;text-align:center}
.visual-lines{display:grid;gap:11px;margin-top:22px}
.visual-line{height:9px;border-radius:10px;background:#2e4d3e;overflow:hidden}
.visual-line i{display:block;height:100%;border-radius:10px;background:var(--orange)}
.visual-line:nth-child(1) i{width:72%}
.visual-line:nth-child(2) i{width:48%;background:var(--mint)}
.visual-line:nth-child(3) i{width:61%}
.visual-note{display:flex;justify-content:space-between;color:#a8bbb0;font-size:11px;margin-top:16px}
.section{padding:88px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
.section-kicker{font-size:13px;color:var(--green);font-weight:900;letter-spacing:1px}
.section h2{font-size:clamp(27px,3.5vw,42px);line-height:1.2;letter-spacing:-1.3px;margin:8px 0 0}
.section-lead{max-width:510px;color:var(--muted);font-size:15px;margin-bottom:0}
.topic-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.topic-bar button{padding:9px 16px;border:1px solid var(--line);border-radius:30px;background:#fff;color:var(--muted);font-size:13px;transition:.2s}
.topic-bar button:hover,.topic-bar button.active{background:var(--green);border-color:var(--green);color:#fff}
.feature-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
.feature-card{background:var(--deep);color:#fff;border-radius:var(--radius);padding:28px;min-height:360px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden}
.feature-card:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(185,239,207,.18),transparent 44%,rgba(240,164,92,.2))}
.feature-art{position:absolute;right:25px;top:24px;width:47%;height:145px;border:1px solid rgba(185,239,207,.35);border-radius:14px;padding:16px;transform:rotate(-3deg)}
.feature-art:before,.feature-art:after{content:"";display:block;height:7px;border-radius:5px;background:var(--mint);margin-bottom:16px;width:80%}
.feature-art:after{width:55%;background:var(--orange);box-shadow:0 24px 0 rgba(185,239,207,.55),0 48px 0 rgba(185,239,207,.25)}
.feature-content{position:relative;max-width:600px}
.tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:#e4f5e7;color:var(--green);font-size:12px;font-weight:800}
.tag.dark{background:rgba(185,239,207,.14);color:var(--mint)}
.feature-card h3{font-size:26px;line-height:1.35;margin:16px 0 10px}
.feature-card p{color:#b8c9bd;font-size:14px;margin-bottom:22px}
.feature-meta{display:flex;gap:16px;color:#b8c9bd;font-size:12px;margin-bottom:20px}
.update-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.panel-title{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:3px}
.panel-title h3{font-size:17px;margin:0}
.panel-title span{font-size:12px;color:var(--green)}
.update-item{padding:18px 0;border-bottom:1px solid var(--line)}
.update-item:last-child{border-bottom:0}
.update-item time{font-size:11px;color:#8b9790}
.update-item h4{font-size:15px;line-height:1.45;margin:6px 0}
.update-item p{font-size:12px;color:var(--muted);margin:0}
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:21px;transition:.2s}
.news-card:hover,.rank-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#badbc3}
.news-card .card-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:16px}
.news-card time{font-size:11px;color:#8a968f}
.news-card h3{font-size:18px;line-height:1.45;margin:0 0 9px}
.news-card p{font-size:13px;color:var(--muted);margin-bottom:18px}
.text-link{color:var(--green);font-size:13px;font-weight:800}
.hot-layout{display:grid;grid-template-columns:1fr 360px;gap:28px}
.timeline{position:relative;padding-left:27px}
.timeline:before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1px;background:#cddacf}
.timeline-item{position:relative;padding:0 0 28px 18px}
.timeline-item:before{content:"";position:absolute;left:-25px;top:7px;width:13px;height:13px;border-radius:50%;background:var(--paper);border:3px solid var(--green)}
.timeline-item time{font-size:12px;color:var(--green);font-weight:800}
.timeline-item h3{font-size:19px;line-height:1.45;margin:6px 0}
.timeline-item p{font-size:13px;color:var(--muted);margin:0}
.ranking{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.ranking h3{font-size:18px;margin-bottom:12px}
.rank-item{display:grid;grid-template-columns:34px 1fr auto;gap:10px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line);transition:.2s}
.rank-item:last-child{border-bottom:0}
.rank-no{font-size:18px;font-weight:900;color:var(--orange)}
.rank-item h4{font-size:14px;margin:0;line-height:1.4}
.rank-item small{display:block;color:var(--muted);font-size:11px;margin-top:3px}
.rank-arrow{color:var(--green);font-size:19px}
.entry-section{background:var(--deep);color:#fff}
.entry-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:65px;align-items:center}
.entry-section .section-lead{color:#b7c8bc}
.entry-points{display:grid;gap:13px;margin:26px 0}
.entry-point{display:flex;gap:13px;align-items:flex-start}
.point-icon{width:28px;height:28px;flex:0 0 28px;border-radius:8px;background:rgba(185,239,207,.14);color:var(--mint);display:grid;place-items:center;font-weight:900}
.entry-point strong{display:block;font-size:14px;margin-bottom:2px}
.entry-point span{display:block;font-size:12px;color:#aabdb0}
.browser-panel{background:#f6f8f5;border-radius:17px;padding:13px;color:var(--ink);box-shadow:0 18px 42px rgba(0,0,0,.18)}
.browser-bar{height:35px;background:#e7eee8;border-radius:10px;display:flex;align-items:center;gap:6px;padding:0 12px}
.browser-dot{width:7px;height:7px;border-radius:50%;background:#b1bdb4}
.browser-address{height:7px;background:#d2ddd4;border-radius:5px;flex:1;margin-left:7px}
.browser-body{display:grid;grid-template-columns:1.2fr .8fr;gap:12px;padding:15px 4px 3px}
.screen-box{min-height:175px;border:1px solid #d9e5da;border-radius:12px;padding:15px;background:#fff}
.screen-box h4{font-size:15px;margin:0 0 13px}
.screen-row{height:30px;border-bottom:1px solid #edf1ed;display:flex;align-items:center;justify-content:space-between;font-size:11px;color:#6e7d73}
.screen-row b{color:var(--green)}
.screen-side-box{background:var(--soft);border-radius:12px;padding:15px}
.screen-side-box strong{font-size:22px;color:var(--green)}
.screen-side-box p{font-size:11px;color:var(--muted);margin:6px 0 15px}
.guide-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.guide-step{background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px}
.guide-step b{display:block;font-size:28px;color:var(--green);line-height:1;margin-bottom:15px}
.guide-step h3{font-size:16px;margin-bottom:7px}
.guide-step p{font-size:13px;color:var(--muted);margin:0}
.notice{margin-top:30px;background:var(--warning);border:1px solid #f1d5ad;border-radius:13px;padding:15px 18px;color:#795b36;font-size:13px}
.faq-list{max-width:850px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;margin-bottom:11px;overflow:hidden}
.faq-question{width:100%;background:#fff;text-align:left;padding:18px 21px;display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--ink)}
.faq-question span{color:var(--green);font-size:22px;transition:.2s}
.faq-answer{display:none;padding:0 21px 19px;color:var(--muted);font-size:14px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span{transform:rotate(45deg)}
.cta{padding:74px 0}
.cta-box{background:linear-gradient(120deg,var(--green),#24714d);border-radius:var(--radius);color:#fff;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta-box h2{font-size:30px;line-height:1.3;margin:0 0 9px}
.cta-box p{color:#d7f1df;margin:0;font-size:14px}
footer{background:var(--deep);color:#fff;padding:58px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1fr;gap:35px}
.footer-desc{color:#aebeb3;font-size:13px;max-width:300px;margin-top:17px}
.footer-col{display:grid;align-content:start;gap:9px}
.footer-col h4{font-size:14px;margin-bottom:7px;color:var(--mint)}
.footer-col a{font-size:13px;color:#b6c4ba;transition:.2s}
.footer-col a:hover{color:#fff}
.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.14);padding-top:20px;margin-top:42px;color:#91a399;font-size:11px}
.risk{color:#b2c4b7;text-align:right}
:focus-visible{outline:3px solid rgba(25,137,87,.35);outline-offset:3px}
@media(max-width:1024px){
 .nav-wrap{gap:18px}
 .nav a{padding:8px 8px;font-size:13px}
 .hero-grid{gap:35px}
 .hot-layout{grid-template-columns:1fr 310px}
}
@media(max-width:768px){
 .container{width:min(var(--container),calc(100% - 32px))}
 .topline .container{font-size:11px}
 .topline .container span{display:none}
 .site-header{position:relative}
 .nav-wrap{height:68px}
 .nav{display:none;position:absolute;left:16px;right:16px;top:76px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .nav.open{display:flex}
 .nav a{padding:11px 13px}
 .menu-btn{display:block}
 .nav-actions .btn{display:none}
 .hero{padding:48px 0 48px}
 .hero-grid,.feature-layout,.hot-layout,.entry-grid{grid-template-columns:1fr}
 h1{font-size:42px;letter-spacing:-1.3px}
 .hero-copy{font-size:16px}
 .hero-visual{margin-top:8px}
 .section{padding:64px 0}
 .section-head{display:block}
 .section-lead{margin-top:15px}
 .feature-card{min-height:390px}
 .news-grid{grid-template-columns:1fr}
 .guide-strip{grid-template-columns:1fr 1fr}
 .entry-grid{gap:30px}
 .browser-body{grid-template-columns:1fr 1fr}
 .cta-box{display:block;padding:32px 25px}
 .cta-box .btn{margin-top:23px}
 .footer-grid{grid-template-columns:1fr 1fr}
 .copyright{display:block}
 .risk{text-align:left;margin-top:10px}
}
@media(max-width:520px){
 .logo{font-size:16px;gap:8px}
 .logo-mark{width:29px;height:29px;border-radius:8px}
 .hero{padding-top:38px}
 h1{font-size:35px}
 .hero-actions .btn{width:100%}
 .scoreboard{gap:7px}
 .score{font-size:22px}
 .feature-card{padding:21px}
 .feature-art{width:55%;right:18px}
 .feature-card h3{font-size:22px}
 .guide-strip{grid-template-columns:1fr}
 .browser-body{grid-template-columns:1fr}
 .screen-side-box{min-height:120px}
 .topic-bar{gap:7px}
 .topic-bar button{font-size:12px;padding:8px 12px}
 .footer-grid{grid-template-columns:1fr}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}