/* roulang page: index */
:root{
  --lime:#c9f23a;
  --lime-light:#dfff65;
  --coral:#ff6758;
  --ink:#191a1f;
  --text:#24252a;
  --muted:#6e7075;
  --paper:#f4f3ee;
  --white:#fff;
  --line:#d9d9d2;
  --soft:#ebeae3;
  --radius:8px;
  --shadow:0 12px 30px rgba(25,26,31,.08);
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;background:var(--paper);color:var(--text);line-height:1.8;font-size:16px}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{height:78px;background:rgba(244,243,238,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.header-inner{height:78px;display:flex;align-items:center;gap:30px}
.logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:.2px}
.logo-mark{width:31px;height:31px;background:var(--lime);border-radius:6px;display:grid;place-items:center;color:var(--ink);font-size:18px;font-weight:900}
.logo-text{font-size:16px;line-height:1.25}
.logo-text small{display:block;color:var(--muted);font-size:10px;font-weight:600;margin-top:2px;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:4px;flex:1}
.main-nav a{padding:8px 12px;font-size:14px;color:#55575c;border-bottom:3px solid transparent;transition:.2s}
.main-nav a:hover,.main-nav a.active{color:var(--ink);border-bottom-color:var(--lime)}
.header-action{white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border:1px solid var(--ink);border-radius:6px;font-weight:750;font-size:14px;transition:transform .2s,background .2s,color .2s,border-color .2s}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{background:var(--lime-light);transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:var(--white);border-color:var(--ink)}
.btn-dark:hover{background:#35363c;transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
.btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
.menu-toggle{display:none;background:none;border:0;font-size:25px;padding:8px}
.hero{min-height:590px;background:var(--ink);position:relative;overflow:hidden;color:var(--white)}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(25,26,31,.98) 0%,rgba(25,26,31,.86) 42%,rgba(25,26,31,.28) 100%);z-index:1}
.hero-grid{position:absolute;inset:0;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;max-width:1400px;margin:auto;padding:0 7%}
.hero-visual{position:absolute;right:4%;top:42px;width:50%;height:510px;opacity:.96}
.visual-frame{height:100%;border:1px solid #4d4e51;border-radius:14px;background:#25262c;padding:18px;transform:rotate(2deg);box-shadow:24px 25px 0 rgba(201,242,58,.16)}
.visual-top{height:36px;border-bottom:1px solid #45464b;display:flex;align-items:center;justify-content:space-between;color:#babcc0;font-size:12px}
.visual-dots{display:flex;gap:6px}.visual-dots i{width:7px;height:7px;border-radius:50%;background:var(--coral)}.visual-dots i:nth-child(2){background:var(--lime)}.visual-dots i:nth-child(3){background:#777}
.visual-body{display:grid;grid-template-columns:145px 1fr;gap:16px;height:calc(100% - 36px);padding-top:18px}
.visual-side{border-right:1px solid #414248;padding-right:14px}.side-line{height:10px;background:#484a50;margin:14px 0;border-radius:3px}.side-line.active{background:var(--lime);width:80%}
.visual-content{display:flex;flex-direction:column;gap:14px}.content-banner{height:145px;background:var(--coral);border-radius:7px;padding:24px;color:var(--ink);font-weight:900;font-size:27px;line-height:1.25}.content-banner span{display:block;font-size:12px;margin-top:18px;font-weight:700}.visual-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.visual-tile{height:102px;border:1px solid #494a50;border-radius:6px;padding:14px}.visual-tile b{display:block;color:var(--lime);font-size:22px}.visual-tile em{font-style:normal;color:#a9abb0;font-size:12px}
.hero-content{position:relative;z-index:2;max-width:620px;padding:84px 0}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:1px;margin-bottom:20px}.eyebrow:before{content:"";width:28px;height:3px;background:var(--lime)}
.hero h1{font-size:clamp(40px,5vw,58px);line-height:1.18;letter-spacing:0;font-weight:850;margin-bottom:22px}
.hero h1 strong{color:var(--lime);font-weight:850}
.hero-desc{color:#d1d1d0;max-width:555px;font-size:17px;line-height:1.85;margin-bottom:30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero .btn-outline{color:var(--white);border-color:#8b8c8d}.hero .btn-outline:hover{background:var(--white);color:var(--ink)}
.hero-note{display:flex;gap:25px;margin-top:32px;color:#aeb0b2;font-size:13px}.hero-note b{color:var(--white);font-size:15px;margin-right:5px}
.brand-strip{background:var(--lime);color:var(--ink);min-height:68px;display:flex;align-items:center}
.strip-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.strip-items{display:flex;gap:28px;flex-wrap:wrap;font-size:13px;font-weight:800}.strip-items span{display:inline-flex;align-items:center;gap:8px}.strip-items span:before{content:"";width:7px;height:7px;background:var(--ink);border-radius:50%}
.section{padding:92px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:34px}.section-kicker{color:var(--coral);font-size:12px;font-weight:850;letter-spacing:1.5px;text-transform:uppercase}.section h2{font-size:34px;line-height:1.3;margin-top:7px}.section-lead{color:var(--muted);max-width:480px;font-size:14px}
.news-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:28px}
.feature-news{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}.feature-news:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.news-art{height:245px;background:#2d3034;position:relative;padding:25px;overflow:hidden}.news-art:after{content:"NG28";position:absolute;right:-10px;bottom:-30px;font-size:105px;font-weight:900;color:var(--lime);opacity:.2}.news-art-label{position:relative;z-index:1;display:inline-block;background:var(--lime);padding:4px 9px;border-radius:4px;color:var(--ink);font-size:12px;font-weight:800}.news-art-title{position:absolute;z-index:1;left:25px;bottom:22px;color:#fff;font-size:27px;font-weight:800;max-width:410px;line-height:1.35}
.feature-body{padding:25px}.meta{display:flex;gap:14px;align-items:center;color:var(--muted);font-size:12px}.tag{color:var(--ink);background:var(--lime);border-radius:4px;padding:2px 8px;font-weight:750}.feature-body h3{font-size:23px;line-height:1.4;margin:13px 0 8px}.feature-body p{color:var(--muted);font-size:14px;margin-bottom:18px}
.news-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:78px 1fr 20px;gap:18px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line);transition:.2s}.news-item:hover{padding-left:8px;background:rgba(201,242,58,.1)}.news-date{font-size:12px;color:var(--coral);font-weight:800}.news-item h3{font-size:16px;line-height:1.45;margin-bottom:3px}.news-item p{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.arrow{font-size:20px;color:var(--coral)}
.empty-state{border:1px dashed var(--line);padding:34px;text-align:center;color:var(--muted);background:var(--white);border-radius:var(--radius)}.empty-state p{margin-bottom:14px}
.download-section{background:var(--ink);color:var(--white);padding:88px 0}.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.download-visual{min-height:325px;display:flex;align-items:center;justify-content:center;position:relative}.device{width:215px;height:365px;border:8px solid #45464b;border-radius:27px;background:#303238;padding:13px;transform:rotate(-7deg);box-shadow:18px 18px 0 var(--lime)}.device-notch{height:15px;width:70px;background:#18191d;border-radius:0 0 10px 10px;margin:-13px auto 16px}.device-screen{height:300px;background:var(--paper);border-radius:10px;color:var(--ink);padding:15px}.device-screen b{display:block;font-size:23px;line-height:1.2;margin:18px 0}.screen-block{height:53px;background:var(--lime);margin:10px 0;border-radius:5px}.screen-block.dark{background:#2e3035}.download-copy .section-kicker{color:var(--lime)}.download-copy h2{font-size:35px;line-height:1.3;margin:10px 0 16px}.download-copy p{color:#c4c5c7;max-width:490px}.download-info{display:flex;gap:25px;margin:25px 0;color:#b8babd;font-size:13px}.download-info strong{display:block;color:var(--white);font-size:16px}.download-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.download-actions small{color:#aeb0b2}.qr-box{width:74px;height:74px;background:repeating-linear-gradient(45deg,#fff 0 4px,#191a1f 4px 7px);border:7px solid #fff;border-radius:4px}
.guide-section{padding:90px 0}.guide-nav{display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.guide-link{padding:25px 16px 25px 0;border-right:1px solid var(--line);margin-right:20px;transition:.2s}.guide-link:last-child{border-right:0}.guide-link:hover{color:#596d00}.guide-no{font-size:12px;color:var(--coral);font-weight:800}.guide-link h3{font-size:17px;line-height:1.4;margin:8px 0}.guide-link p{font-size:12px;color:var(--muted);line-height:1.65}
.activity{background:var(--soft);padding:90px 0}.activity-bar{background:var(--white);border:1px solid var(--line);border-left:7px solid var(--coral);display:grid;grid-template-columns:145px 1fr auto;align-items:center;gap:28px;padding:24px 27px;border-radius:var(--radius)}.activity-status{color:var(--coral);font-weight:850;font-size:13px}.activity h3{font-size:21px}.activity p{font-size:14px;color:var(--muted);margin-top:4px}
.faq-section{padding:90px 0}.faq-wrap{max-width:850px;border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;background:none;border:0;padding:21px 0;text-align:left;display:flex;justify-content:space-between;align-items:center;color:var(--text);font-weight:750;font-size:17px}.faq-question span:last-child{font-size:25px;color:var(--coral);font-weight:400}.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 45px 21px 0}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question{color:#637800}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.final-cta{background:var(--lime);padding:50px 0}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta-inner h2{font-size:30px;line-height:1.35}.cta-inner p{font-size:14px;margin-top:5px}
.site-footer{background:var(--ink);color:#d5d6d5;padding:62px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:45px;padding-bottom:50px}.footer-brand p{color:#96989c;font-size:13px;max-width:270px;margin-top:15px}.footer-title{color:var(--lime);font-size:13px;font-weight:800;margin-bottom:15px}.footer-links{list-style:none;display:grid;gap:8px}.footer-links a{color:#b4b6b9;font-size:13px;transition:.2s}.footer-links a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid #393a3e;padding-top:20px;display:flex;justify-content:space-between;color:#85878a;font-size:12px;gap:15px}
@media(max-width:1024px){.main-nav{gap:0}.main-nav a{padding:8px 7px;font-size:13px}.logo{min-width:220px}.hero-grid{padding:0 5%}.guide-nav{grid-template-columns:repeat(3,1fr);row-gap:0}.guide-link:nth-child(3){border-right:0}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}}
@media(max-width:768px){.container{width:min(100% - 32px,600px)}.site-header,.header-inner{height:68px}.logo{min-width:0;flex:1}.logo-text{font-size:14px}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 16px;flex-direction:column;align-items:stretch}.main-nav.show{display:flex}.main-nav a{padding:12px 8px;border-bottom:1px solid var(--line)}.header-action{display:none}.menu-toggle{display:block}.hero{min-height:520px}.hero:before{background:linear-gradient(90deg,rgba(25,26,31,.98),rgba(25,26,31,.72))}.hero-grid{display:block;padding:0 16px}.hero-content{padding:72px 0 40px}.hero h1{font-size:40px}.hero-desc{font-size:15px}.hero-visual{width:88%;right:-15%;top:235px;height:250px;opacity:.25}.visual-body{grid-template-columns:70px 1fr}.visual-content{gap:7px}.content-banner{height:80px;font-size:17px;padding:13px}.visual-tile{height:65px;padding:8px}.visual-tile b{font-size:15px}.visual-tile em{font-size:9px}.visual-side{padding-right:7px}.strip-inner{align-items:flex-start;padding:17px 0}.strip-items{gap:10px 18px}.section,.guide-section,.activity,.faq-section{padding:58px 0}.section-head{display:block;margin-bottom:25px}.section-lead{margin-top:10px}.section h2,.download-copy h2{font-size:28px}.news-layout,.download-grid{grid-template-columns:1fr;gap:25px}.news-art{height:205px}.download-grid{gap:18px}.download-visual{min-height:300px}.download-copy{padding-bottom:10px}.guide-nav{grid-template-columns:repeat(2,1fr)}.guide-link{margin-right:12px;padding:20px 10px 20px 0}.guide-link:nth-child(2n){border-right:0}.activity-bar{grid-template-columns:1fr;gap:6px}.activity-bar .btn{margin-top:10px;width:max-content}.cta-inner{display:block}.cta-inner .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}}
@media(max-width:520px){.logo-mark{width:28px;height:28px;font-size:16px}.logo-text small{display:none}.hero h1{font-size:34px}.hero-content{padding-top:60px}.hero-note{gap:12px;flex-wrap:wrap}.hero-actions .btn{width:100%}.news-item{grid-template-columns:65px 1fr 15px;gap:10px}.news-item h3{font-size:14px}.news-item p{font-size:12px}.download-info{gap:14px}.download-actions{align-items:flex-start}.qr-box{width:62px;height:62px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}

/* roulang page: article */
:root{
      --lime:#c9f23a;
      --lime-light:#dfff65;
      --coral:#ff6758;
      --ink:#191a1f;
      --text:#24252a;
      --muted:#6e7075;
      --paper:#f4f3ee;
      --white:#fff;
      --line:#d9d9d2;
      --soft:#ebeae3;
      --radius:8px;
      --shadow:0 12px 30px rgba(25,26,31,.08);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(244,243,238,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .header-inner{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800}
    .logo-mark{width:31px;height:31px;background:var(--lime);border-radius:6px;display:grid;place-items:center;color:var(--ink);font-size:18px;font-weight:900}
    .logo-text{font-size:16px;line-height:1.25}
    .logo-text small{display:block;color:var(--muted);font-size:10px;font-weight:600;margin-top:2px;letter-spacing:1px}
    .main-nav{display:flex;align-items:center;gap:3px;flex:1}
    .main-nav a{padding:8px 11px;font-size:14px;color:#55575c;border-bottom:3px solid transparent;transition:.2s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);border-bottom-color:var(--lime)}
    .header-action{white-space:nowrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border:1px solid var(--ink);border-radius:6px;font-weight:750;font-size:14px;transition:transform .2s,background .2s,color .2s,border-color .2s}
    .btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
    .btn-primary:hover{background:var(--lime-light);transform:translateY(-2px)}
    .btn-dark{background:var(--ink);color:var(--white);border-color:var(--ink)}
    .btn-dark:hover{background:#35363c;transform:translateY(-2px)}
    .btn-outline{background:transparent;color:var(--ink)}
    .btn-outline:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .menu-toggle{display:none;background:none;border:0;font-size:25px;padding:8px;color:var(--ink)}
    .breadcrumb-bar{padding:28px 0 18px;color:var(--muted);font-size:13px}
    .breadcrumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .breadcrumb a:hover{color:var(--ink)}
    .breadcrumb .current{color:var(--text);max-width:480px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .crumb-separator{color:var(--coral)}
    .article-head{padding:22px 0 54px}
    .article-label{display:inline-flex;align-items:center;gap:8px;background:var(--lime);color:var(--ink);font-size:13px;font-weight:800;padding:4px 12px;border-radius:4px;margin-bottom:18px}
    .article-label:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ink)}
    .article-head h1{font-size:clamp(34px,5vw,56px);line-height:1.25;letter-spacing:0;max-width:930px;margin:0 0 22px;font-weight:850}
    .article-intro{max-width:780px;color:var(--muted);font-size:17px;margin:0 0 22px}
    .article-meta{display:flex;align-items:center;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:13px}
    .meta-dot{width:5px;height:5px;background:var(--coral);border-radius:50%}
    .cover-panel{height:300px;background:var(--ink);border-radius:var(--radius);position:relative;overflow:hidden;margin-bottom:64px;color:var(--white);padding:34px}
    .cover-panel:after{content:"";position:absolute;right:-90px;top:-120px;width:430px;height:430px;border:1px solid rgba(201,242,58,.35);transform:rotate(22deg)}
    .cover-label{position:relative;z-index:1;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:1px}
    .cover-title{position:relative;z-index:1;max-width:520px;font-size:34px;line-height:1.35;font-weight:850;margin-top:32px}
    .cover-grid{position:absolute;right:9%;bottom:34px;width:300px;height:150px;display:grid;grid-template-columns:1fr 1.4fr;gap:10px;transform:rotate(-6deg)}
    .cover-block{background:#303137;border:1px solid #4a4b50;border-radius:5px;position:relative}
    .cover-block.accent{background:var(--lime);border-color:var(--lime)}
    .cover-block:before,.cover-block:after{content:"";position:absolute;left:14px;right:14px;height:7px;background:#64656a;top:20px;border-radius:2px}
    .cover-block:after{top:42px;width:45%}
    .cover-block.accent:before,.cover-block.accent:after{background:var(--ink)}
    .article-layout{display:grid;grid-template-columns:minmax(0,780px) 250px;gap:86px;align-items:start}
    .article-content{font-size:16px;line-height:1.95}
    .article-content>*{max-width:100%}
    .article-content h2{font-size:30px;line-height:1.35;margin:46px 0 16px;font-weight:850}
    .article-content h3{font-size:22px;line-height:1.45;margin:34px 0 12px;font-weight:800}
    .article-content p{margin:0 0 22px}
    .article-content ul,.article-content ol{padding-left:25px;margin:0 0 25px}
    .article-content li{padding-left:5px;margin:7px 0}
    .article-content blockquote{border-left:4px solid var(--lime);background:var(--white);padding:18px 22px;margin:30px 0;font-weight:650}
    .article-content img{border-radius:var(--radius);margin:30px 0}
    .article-content table{width:100%;border-collapse:collapse;margin:28px 0;background:var(--white);font-size:14px}
    .article-content th,.article-content td{border:1px solid var(--line);padding:12px 14px;text-align:left}
    .article-content th{background:var(--soft);font-weight:800}
    .reading-side{position:sticky;top:110px;border-top:3px solid var(--lime);padding-top:16px}
    .side-title{font-size:13px;font-weight:850;margin-bottom:14px}
    .side-links{list-style:none;padding:0;margin:0}
    .side-links li{border-bottom:1px solid var(--line);padding:10px 0;color:var(--muted);font-size:13px}
    .side-links a:hover{color:var(--ink)}
    .side-download{margin-top:28px;background:var(--ink);color:var(--white);padding:19px;border-radius:var(--radius)}
    .side-download strong{display:block;color:var(--lime);font-size:17px;line-height:1.4;margin-bottom:7px}
    .side-download p{font-size:12px;color:#b9babe;line-height:1.65;margin:0 0 14px}
    .article-bottom{border-top:1px solid var(--line);margin-top:58px;padding:28px 0 80px}
    .article-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:27px}
    .article-tag{border:1px solid var(--line);border-radius:4px;padding:4px 10px;font-size:12px;color:var(--muted)}
    .article-tag:hover{border-color:var(--lime);color:var(--ink)}
    .article-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .article-nav a{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:18px;transition:.2s}
    .article-nav a:hover{border-color:var(--lime);transform:translateY(-2px);box-shadow:var(--shadow)}
    .nav-caption{display:block;color:var(--coral);font-size:12px;font-weight:800;margin-bottom:6px}
    .nav-title{font-weight:750;line-height:1.5}
    .not-found{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:70px 30px;text-align:center;margin:20px 0 90px}
    .not-found h1{font-size:34px;margin:0 0 12px}
    .not-found p{color:var(--muted);margin:0 0 25px}
    .site-footer{background:var(--ink);color:var(--white);padding:62px 0 22px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px}
    .footer-brand .logo{min-width:0;margin-bottom:18px}
    .footer-brand p{color:#aeb0b2;font-size:13px;max-width:260px;margin:0}
    .footer-title{font-size:13px;color:var(--lime);font-weight:800;margin-bottom:14px}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:7px 0}
    .footer-links a{color:#bfc0c1;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid #38393e;margin-top:45px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#8e9094;font-size:12px}
    @media (max-width:1024px){
      .main-nav a{padding-left:7px;padding-right:7px}
      .logo{min-width:215px}
      .article-layout{gap:45px}
      .cover-grid{right:4%}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.header-inner{height:68px}
      .header-inner{gap:10px}
      .logo{min-width:0;flex:1}
      .logo-text{font-size:14px}
      .logo-text small{font-size:9px}
      .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 16px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
      .main-nav.open{display:flex}
      .main-nav a{padding:11px 8px;border-bottom:1px solid var(--line)}
      .header-action .btn{min-height:40px;padding:0 12px;font-size:12px}
      .menu-toggle{display:block}
      .breadcrumb-bar{padding-top:20px}
      .article-head{padding-bottom:36px}
      .article-head h1{font-size:35px}
      .cover-panel{height:350px;margin-bottom:42px;padding:25px}
      .cover-title{font-size:27px;max-width:75%;margin-top:28px}
      .cover-grid{right:8%;bottom:28px;width:235px;height:120px}
      .article-layout{display:flex;flex-direction:column;gap:35px}
      .reading-side{position:static;width:100%;order:-1}
      .side-links{display:flex;gap:8px;overflow:auto}
      .side-links li{white-space:nowrap;border:1px solid var(--line);padding:7px 11px}
      .side-download{display:none}
      .article-content h2{font-size:26px}
      .article-nav{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{flex-direction:column;gap:5px}
    }
    @media (max-width:520px){
      .header-action{display:none}
      .article-head h1{font-size:30px}
      .article-intro{font-size:15px}
      .article-meta{gap:10px}
      .cover-panel{height:310px}
      .cover-title{max-width:100%;font-size:25px}
      .cover-grid{right:12px;bottom:20px;opacity:.78}
      .article-content{font-size:15px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:22px}
      .footer-links li{margin:5px 0}
    }

/* roulang page: category1 */
:root{
      --lime:#c9f23a;--lime-light:#dfff65;--coral:#ff6758;--ink:#191a1f;
      --text:#24252a;--muted:#6e7075;--paper:#f4f3ee;--white:#fff;
      --line:#d9d9d2;--soft:#ebeae3;--radius:8px;
      --shadow:0 12px 30px rgba(25,26,31,.08);--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(244,243,238,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .header-inner{height:78px;display:flex;align-items:center;gap:26px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800}
    .logo-mark{width:31px;height:31px;background:var(--lime);border-radius:6px;display:grid;place-items:center;color:var(--ink);font-size:18px;font-weight:900}
    .logo-text{font-size:16px;line-height:1.25;white-space:nowrap}
    .logo-text small{display:block;color:var(--muted);font-size:10px;font-weight:600;margin-top:2px;letter-spacing:1px}
    .main-nav{display:flex;align-items:center;gap:3px;flex:1}
    .main-nav a{padding:8px 11px;font-size:14px;color:#55575c;border-bottom:3px solid transparent;transition:.2s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);border-bottom-color:var(--lime)}
    .header-action{white-space:nowrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 20px;border:1px solid var(--ink);border-radius:6px;font-weight:750;font-size:14px;transition:.2s}
    .btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
    .btn-primary:hover{background:var(--lime-light);transform:translateY(-2px)}
    .btn-dark{background:var(--ink);color:var(--white);border-color:var(--ink)}
    .btn-dark:hover{background:#35363c;transform:translateY(-2px)}
    .btn-outline{background:transparent;color:var(--ink)}
    .btn-outline:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .menu-toggle{display:none;background:none;border:0;font-size:25px;padding:8px}
    .sub-hero{background:var(--ink);color:var(--white);min-height:390px;position:relative;overflow:hidden}
    .sub-hero:after{content:"";position:absolute;right:8%;top:55px;width:390px;height:270px;border:1px solid #494b4e;transform:skewY(-8deg)}
    .sub-hero:before{content:"01";position:absolute;right:13%;bottom:8px;color:#2b2d32;font-size:210px;font-weight:900;line-height:1}
    .sub-hero .container{position:relative;z-index:1;padding:74px 0 66px}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:1px;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--lime)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,58px);line-height:1.2;margin-bottom:20px;font-weight:850}
    h2{font-size:34px;line-height:1.3;margin-bottom:12px}
    h3{font-size:20px;line-height:1.45;margin-bottom:8px}
    .hero-desc{max-width:620px;color:#d1d1d0;font-size:17px;line-height:1.85}
    .crumbs{padding:20px 0;color:var(--muted);font-size:13px}
    .crumbs a:hover{color:var(--ink)}
    .crumbs span{padding:0 9px;color:#a5a6a5}
    .section{padding:78px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section-kicker{color:var(--coral);font-size:12px;font-weight:850;letter-spacing:1.5px}
    .section-lead{max-width:470px;color:var(--muted);font-size:14px}
    .filter-bar{display:flex;gap:12px;align-items:center;margin-bottom:30px;padding:16px 18px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
    .filter-bar label{font-size:13px;font-weight:750;white-space:nowrap}
    .search-box{display:flex;flex:1;max-width:420px}
    .search-box input,.filter-bar select{height:44px;border:1px solid var(--line);background:var(--paper);padding:0 13px;color:var(--text);border-radius:5px}
    .search-box input{width:100%;border-radius:5px 0 0 5px}
    .search-box button{width:48px;border:0;background:var(--ink);color:#fff;border-radius:0 5px 5px 0}
    .filter-bar select{min-width:145px}
    .news-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:start}
    .feature-news{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}
    .feature-news:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
    .news-visual{height:275px;background:var(--ink);position:relative;overflow:hidden;padding:28px}
    .news-visual:before{content:"NG28";position:absolute;right:18px;bottom:-23px;color:#2a2c31;font-size:104px;font-weight:900}
    .visual-lines{display:grid;gap:12px;width:62%;position:relative;z-index:1}
    .visual-lines i{display:block;height:13px;background:var(--lime);width:72%;border-radius:2px}
    .visual-lines i:nth-child(2){width:100%;height:34px;background:#f3f3ed}
    .visual-lines i:nth-child(3){width:82%;background:var(--coral)}
    .visual-lines i:nth-child(4){width:55%;background:#55575c}
    .feature-body{padding:25px}
    .meta{display:flex;gap:14px;align-items:center;color:var(--muted);font-size:12px}
    .tag{color:var(--ink);background:var(--lime);border-radius:4px;padding:2px 8px;font-weight:750}
    .feature-body h3{font-size:24px;margin:13px 0 8px}
    .feature-body p{color:var(--muted);font-size:14px;margin-bottom:20px}
    .news-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:78px 1fr 22px;gap:17px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line);transition:.2s}
    .news-item:hover{padding-left:8px;background:rgba(201,242,58,.1)}
    .news-date{font-size:12px;color:var(--muted);line-height:1.35}
    .news-date b{display:block;font-size:22px;color:var(--ink)}
    .news-item h3{font-size:16px;margin:0 0 3px}
    .news-item p{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0}
    .arrow{font-size:21px;color:var(--coral)}
    .notice-band{background:var(--soft);border-left:5px solid var(--coral);padding:22px 25px;display:flex;justify-content:space-between;gap:24px;align-items:center}
    .notice-band strong{font-size:18px}
    .notice-band p{margin:4px 0 0;color:var(--muted);font-size:14px}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .topic-card{padding:25px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);transition:.2s}
    .topic-card:hover{border-color:var(--ink);box-shadow:var(--shadow);transform:translateY(-2px)}
    .topic-num{color:var(--coral);font-weight:850;font-size:13px;margin-bottom:23px}
    .topic-card p{font-size:14px;color:var(--muted);margin-bottom:17px}
    .text-link{font-weight:800;font-size:14px;border-bottom:2px solid var(--lime);padding-bottom:3px}
    .faq-section{background:var(--white)}
    .faq-wrap{max-width:850px;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;background:none;border:0;padding:20px 0;text-align:left;display:flex;justify-content:space-between;align-items:center;color:var(--text);font-weight:750;font-size:17px}
    .faq-question span:last-child{font-size:25px;color:var(--coral);font-weight:400}
    .faq-ans{display:none;color:var(--muted);font-size:14px;padding:0 45px 20px 0}
    .faq-item.open .faq-ans{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{background:var(--lime);padding:58px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{margin-bottom:7px}
    .cta p{margin:0;color:#4c551d;font-size:14px}
    .site-footer{background:var(--ink);color:#fff;padding:62px 0 22px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:38px}
    .footer-brand p{color:#aeb0b2;font-size:14px;max-width:280px;margin-top:18px}
    .footer-title{font-size:14px;font-weight:800;color:var(--lime);margin-bottom:14px}
    .footer-links{list-style:none;margin:0;padding:0}
    .footer-links li{margin:7px 0;color:#bfc0c0;font-size:13px}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid #393b3f;margin-top:40px;padding-top:18px;color:#8e9094;font-size:12px;display:flex;justify-content:space-between;gap:15px}
    @media(max-width:1024px){.main-nav a{padding-left:7px;padding-right:7px}.logo{min-width:220px}.news-layout{gap:25px}}
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.header-inner{height:68px}.header-inner{gap:10px}.logo{min-width:0;flex:1}.logo-text{font-size:14px}.header-action{display:none}
      .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 16px;flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}.main-nav a{padding:11px 10px;border-bottom:0;border-left:3px solid transparent}.main-nav a.active{border-left-color:var(--lime);background:rgba(201,242,58,.16)}
      .menu-toggle{display:block}.sub-hero{min-height:350px}.sub-hero:after{right:-95px;top:150px}.sub-hero:before{right:-10px;font-size:150px}
      .sub-hero .container{padding:61px 0}.hero-desc{font-size:15px}.section{padding:56px 0}.section-head,.cta-inner{display:block}.section-lead{margin-top:15px}
      .filter-bar{display:grid;grid-template-columns:1fr 1fr}.filter-bar label{grid-column:1/-1}.search-box{max-width:none}.filter-bar select{min-width:0;width:100%}
      .news-layout{grid-template-columns:1fr}.topic-grid{grid-template-columns:1fr}.notice-band{display:block}.notice-band .btn{margin-top:17px}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
    }
    @media(max-width:520px){
      h1{font-size:38px}.news-visual{height:220px}.feature-body h3{font-size:21px}.news-item{grid-template-columns:60px 1fr 18px;gap:10px}.news-item p{white-space:normal;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical}
      .filter-bar{grid-template-columns:1fr}.search-box{grid-column:1}.filter-bar select{grid-column:1}.footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category3 */
:root{
      --lime:#c9f23a;
      --lime-light:#dfff65;
      --coral:#ff6758;
      --ink:#191a1f;
      --text:#24252a;
      --muted:#6e7075;
      --paper:#f4f3ee;
      --white:#fff;
      --line:#d9d9d2;
      --soft:#ebeae3;
      --radius:8px;
      --shadow:0 12px 30px rgba(25,26,31,.08);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(244,243,238,.98);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .header-inner{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800}
    .logo-mark{width:31px;height:31px;background:var(--lime);border-radius:6px;display:grid;place-items:center;color:var(--ink);font-size:18px;font-weight:900}
    .logo-text{font-size:16px;line-height:1.25}
    .logo-text small{display:block;color:var(--muted);font-size:10px;font-weight:600;margin-top:2px;letter-spacing:1px}
    .main-nav{display:flex;align-items:center;gap:4px;flex:1}
    .main-nav a{padding:8px 12px;font-size:14px;color:#55575c;border-bottom:3px solid transparent;transition:.2s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);border-bottom-color:var(--lime)}
    .header-action{white-space:nowrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border:1px solid var(--ink);border-radius:6px;font-weight:750;font-size:14px;transition:transform .2s,background .2s,color .2s,border-color .2s}
    .btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
    .btn-primary:hover{background:var(--lime-light);transform:translateY(-2px)}
    .btn-dark{background:var(--ink);color:var(--white);border-color:var(--ink)}
    .btn-dark:hover{background:#35363c;transform:translateY(-2px)}
    .btn-outline{background:transparent;color:var(--ink)}
    .btn-outline:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .menu-toggle{display:none;background:none;border:0;font-size:25px;padding:8px}
    .crumbs{padding:24px 0 0;color:var(--muted);font-size:13px}
    .crumbs a:hover{color:var(--ink)}
    .crumbs span{margin:0 9px;color:#aaa}
    .page-hero{padding:58px 0 76px;border-bottom:1px solid var(--line)}
    .page-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--coral);font-size:13px;font-weight:800;letter-spacing:1px;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--coral)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(40px,5vw,58px);line-height:1.2;letter-spacing:0;font-weight:850;margin-bottom:22px}
    h1 strong{color:#6b8515}
    .hero-desc{color:var(--muted);max-width:590px;font-size:17px;line-height:1.85;margin-bottom:28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero-note{display:flex;gap:24px;margin-top:26px;color:var(--muted);font-size:13px}
    .hero-note b{color:var(--ink);font-size:15px;margin-right:5px}
    .app-scene{background:var(--ink);min-height:350px;border-radius:12px;position:relative;overflow:hidden;padding:28px}
    .app-scene:before{content:"";position:absolute;left:0;top:0;width:100%;height:7px;background:var(--lime)}
    .scene-label{color:var(--lime);font-size:12px;font-weight:800;letter-spacing:1.5px}
    .device-row{display:flex;justify-content:center;align-items:end;gap:22px;height:260px;margin-top:10px}
    .phone{width:142px;height:245px;background:#f6f6f1;border:6px solid #44454b;border-radius:21px;padding:12px 9px;box-shadow:0 16px 28px rgba(0,0,0,.24);position:relative}
    .phone:first-child{height:215px;background:#dfe8c0;transform:rotate(-5deg)}
    .phone:last-child{height:267px;background:#fff;transform:rotate(5deg)}
    .phone-notch{height:9px;width:54px;background:#24252a;border-radius:8px;margin:0 auto 14px}
    .screen-top{height:28px;background:var(--lime);border-radius:5px;margin-bottom:11px}
    .screen-line{height:8px;background:#d6d7cf;border-radius:4px;margin:8px 0}
    .screen-line.short{width:60%}
    .screen-box{height:61px;background:#24252a;border-radius:6px;margin:12px 0;position:relative}
    .screen-box:after{content:"";position:absolute;left:10px;bottom:10px;width:48px;height:6px;background:var(--lime);border-radius:4px}
    .scene-footer{display:flex;justify-content:space-between;align-items:center;color:#c3c4c5;font-size:12px;margin-top:8px}
    .section{padding:88px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:34px}
    .section-kicker{color:var(--coral);font-size:12px;font-weight:850;letter-spacing:1.5px}
    .section h2{font-size:34px;line-height:1.3;margin:7px 0 0}
    .section-lead{color:var(--muted);max-width:500px;font-size:14px}
    .download-panel{background:var(--ink);color:var(--white);padding:58px 62px;border-radius:10px;display:grid;grid-template-columns:1fr 310px;gap:70px;align-items:center}
    .download-panel h2{font-size:34px;line-height:1.35;margin:9px 0 14px}
    .download-panel p{color:#c7c8c8;max-width:590px}
    .download-points{display:flex;flex-wrap:wrap;gap:10px;margin:23px 0 27px}
    .download-points span{border:1px solid #505158;border-radius:4px;padding:6px 11px;color:#ddd;font-size:13px}
    .download-side{border-left:1px solid #4a4b50;padding-left:35px}
    .qr-box{width:154px;height:154px;background:#fff;padding:13px;display:grid;grid-template-columns:repeat(7,1fr);gap:3px;margin-bottom:13px}
    .qr-box i{background:var(--ink);display:block}
    .qr-box i:nth-child(3n),.qr-box i:nth-child(5n){background:var(--lime)}
    .qr-note{font-size:12px;color:#b9babd;line-height:1.6}
    .status-line{display:flex;align-items:center;gap:8px;color:#aaa;font-size:12px;margin-top:20px}
    .status-dot{width:8px;height:8px;border-radius:50%;background:var(--lime)}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .feature-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:27px;min-height:195px;transition:.25s}
    .feature-card:hover{border-color:var(--lime);box-shadow:var(--shadow);transform:translateY(-3px)}
    .feature-number{color:var(--coral);font-size:13px;font-weight:850;letter-spacing:1px}
    .feature-card h3{font-size:20px;margin:16px 0 8px}
    .feature-card p{color:var(--muted);font-size:14px;line-height:1.75;margin-bottom:0}
    .update-layout{display:grid;grid-template-columns:280px 1fr;gap:68px}
    .update-intro{border-top:4px solid var(--lime);padding-top:19px}
    .update-intro h2{font-size:30px;line-height:1.35}
    .update-intro p{font-size:14px;color:var(--muted)}
    .update-list{border-top:1px solid var(--line)}
    .update-item{display:grid;grid-template-columns:105px 1fr 90px;gap:25px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
    .update-date{font-size:13px;color:var(--muted)}
    .update-item h3{font-size:18px;margin:0 0 4px}
    .update-item p{font-size:13px;color:var(--muted);margin:0}
    .badge{display:inline-flex;justify-content:center;border-radius:4px;padding:3px 9px;font-size:12px;font-weight:750;background:var(--lime);color:var(--ink)}
    .badge.waiting{background:#eee0c8;color:#855b16}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{padding:27px 24px;border-right:1px solid var(--line);position:relative}
    .step:last-child{border-right:0}
    .step-num{font-size:34px;color:var(--coral);font-weight:850;line-height:1}
    .step h3{font-size:18px;margin:17px 0 7px}
    .step p{font-size:14px;color:var(--muted);margin-bottom:0}
    .faq-section{background:var(--soft)}
    .faq-wrap{max-width:850px;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;background:none;border:0;padding:20px 0;text-align:left;display:flex;justify-content:space-between;align-items:center;color:var(--text);font-weight:750;font-size:17px}
    .faq-question span:last-child{font-size:25px;color:var(--coral);font-weight:400}
    .faq-answer{display:none;padding:0 50px 20px 0;color:var(--muted);font-size:14px}
    .faq-item.open{border-left:3px solid var(--lime);padding-left:16px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{color:var(--ink)}
    .cta-section{padding:75px 0}
    .cta-box{background:var(--lime);padding:39px 48px;border-radius:9px;display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-box h2{font-size:30px;line-height:1.35;margin:0 0 6px}
    .cta-box p{margin:0;font-size:14px}
    .site-footer{background:var(--ink);color:var(--white);padding:60px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:45px}
    .footer-brand p{color:#aeb0b2;font-size:13px;max-width:280px;margin-top:18px}
    .footer-title{font-size:14px;font-weight:800;color:var(--lime);margin-bottom:14px}
    .footer-links{padding:0;margin:0;list-style:none}
    .footer-links li{margin:7px 0}
    .footer-links a{color:#b9babd;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #37383d;padding-top:20px;margin-top:45px;color:#8e9094;font-size:12px}
    @media(max-width:1024px){
      .header-inner{gap:12px}.logo{min-width:205px}.main-nav a{padding:8px 7px;font-size:13px}
      .page-hero-grid{gap:35px}.download-panel{gap:35px;padding:42px}
      .update-layout{gap:35px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.header-inner{height:68px}.site-header{position:relative}
      .header-inner{gap:8px}.logo{min-width:0;flex:1}.logo-text{font-size:14px}.logo-text small{font-size:9px}
      .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 16px;flex-direction:column;align-items:stretch;z-index:30}
      .main-nav.open{display:flex}.main-nav a{padding:12px 8px;border-bottom:1px solid var(--line)}
      .header-action .btn{min-height:40px;padding:0 12px;font-size:12px}.menu-toggle{display:block}
      .crumbs{padding-top:18px;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
      .page-hero{padding:38px 0 48px}.page-hero-grid{grid-template-columns:1fr;gap:30px}
      h1{font-size:40px}.hero-desc{font-size:15px}.hero-note{gap:15px;flex-wrap:wrap}
      .app-scene{min-height:300px;padding:22px}.device-row{height:220px}.phone{transform:none!important;scale:.88}
      .section{padding:56px 0}.section-head{display:block;margin-bottom:24px}.section h2{font-size:28px}.section-lead{margin-top:12px}
      .download-panel{grid-template-columns:1fr;padding:32px 25px;gap:30px}.download-panel h2{font-size:28px}.download-side{border-left:0;border-top:1px solid #4a4b50;padding:25px 0 0}
      .feature-grid{grid-template-columns:1fr}.feature-card{min-height:0}
      .update-layout{grid-template-columns:1fr;gap:25px}.update-item{grid-template-columns:75px 1fr;gap:14px}.update-item .badge{grid-column:2;justify-self:start}
      .steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}
      .cta-box{display:block;padding:30px 25px}.cta-box .btn{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin:5px 0}
    }
    @media(max-width:520px){
      .header-action{display:none}.logo-text small{letter-spacing:0}.hero-actions .btn{width:100%}
      .device-row{gap:2px}.phone{width:125px}.feature-card{padding:22px}
      .update-item h3{font-size:16px}.faq-question{font-size:15px}.faq-answer{padding-right:0}
      .footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category2 */
:root{
      --lime:#c9f23a;
      --lime-light:#dfff65;
      --coral:#ff6758;
      --ink:#191a1f;
      --text:#24252a;
      --muted:#6e7075;
      --paper:#f4f3ee;
      --white:#fff;
      --line:#d9d9d2;
      --soft:#ebeae3;
      --radius:8px;
      --shadow:0 12px 30px rgba(25,26,31,.08);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:var(--paper);
      color:var(--text);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.8;
    }
    a{color:inherit;text-decoration:none}
    a:hover{color:inherit}
    img,svg{display:block;max-width:100%}
    button,input,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      height:78px;
      background:rgba(244,243,238,.97);
      border-bottom:1px solid var(--line);
      position:sticky;
      top:0;
      z-index:20;
    }
    .header-inner{
      height:78px;
      display:flex;
      align-items:center;
      gap:30px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:11px;
      min-width:245px;
      font-weight:800;
      letter-spacing:.2px;
    }
    .logo-mark{
      width:31px;
      height:31px;
      background:var(--lime);
      border-radius:6px;
      display:grid;
      place-items:center;
      color:var(--ink);
      font-size:18px;
      font-weight:900;
    }
    .logo-text{font-size:16px;line-height:1.25}
    .logo-text small{
      display:block;
      color:var(--muted);
      font-size:10px;
      font-weight:600;
      margin-top:2px;
      letter-spacing:1px;
    }
    .main-nav{
      display:flex;
      align-items:center;
      gap:4px;
      flex:1;
    }
    .main-nav a{
      padding:8px 12px;
      font-size:14px;
      color:#55575c;
      border-bottom:3px solid transparent;
      transition:.2s ease;
      white-space:nowrap;
    }
    .main-nav a:hover,.main-nav a.active{
      color:var(--ink);
      border-bottom-color:var(--lime);
    }
    .header-action{white-space:nowrap}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:0 20px;
      border:1px solid var(--ink);
      border-radius:6px;
      font-weight:750;
      font-size:14px;
      transition:transform .2s,background .2s,color .2s,border-color .2s;
    }
    .btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
    .btn-primary:hover{background:var(--lime-light);transform:translateY(-2px)}
    .btn-dark{background:var(--ink);color:var(--white);border-color:var(--ink)}
    .btn-dark:hover{background:#35363c;transform:translateY(-2px)}
    .btn-outline{background:transparent;color:var(--ink)}
    .btn-outline:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{
      outline:3px solid var(--coral);
      outline-offset:3px;
    }
    .menu-toggle{
      display:none;
      background:none;
      border:0;
      font-size:25px;
      padding:8px;
      color:var(--ink);
    }
    .breadcrumb-wrap{
      padding:24px 0 0;
      color:var(--muted);
      font-size:13px;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .breadcrumb li:not(:last-child):after{
      content:"/";
      margin-left:8px;
      color:#a4a59f;
    }
    .breadcrumb a:hover{color:var(--text)}
    .update-hero{
      padding:62px 0 76px;
      overflow:hidden;
    }
    .update-hero-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:78px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      color:var(--coral);
      font-size:13px;
      font-weight:800;
      letter-spacing:1px;
      margin-bottom:18px;
    }
    .eyebrow:before{
      content:"";
      width:28px;
      height:3px;
      background:var(--coral);
    }
    .update-hero h1{
      font-size:clamp(40px,5vw,58px);
      line-height:1.2;
      letter-spacing:0;
      font-weight:850;
      margin:0 0 20px;
      max-width:600px;
    }
    .update-hero h1 strong{color:#789600;font-weight:850}
    .hero-desc{
      color:var(--muted);
      max-width:565px;
      font-size:17px;
      line-height:1.85;
      margin:0 0 28px;
    }
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .status-line{
      display:flex;
      flex-wrap:wrap;
      gap:24px;
      margin-top:30px;
      color:var(--muted);
      font-size:13px;
    }
    .status-line b{color:var(--text);font-size:15px;margin-right:5px}
    .update-board{
      min-height:370px;
      background:var(--ink);
      border-radius:8px;
      color:var(--white);
      padding:28px;
      position:relative;
      overflow:hidden;
      box-shadow:var(--shadow);
    }
    .update-board:after{
      content:"";
      position:absolute;
      right:-42px;
      bottom:-48px;
      width:170px;
      height:170px;
      border:28px solid var(--lime);
      transform:rotate(45deg);
      opacity:.95;
    }
    .board-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      border-bottom:1px solid #3d3e43;
      padding-bottom:18px;
      position:relative;
      z-index:1;
    }
    .board-label{
      color:var(--lime);
      font-weight:800;
      font-size:13px;
      letter-spacing:1px;
    }
    .board-state{
      display:flex;
      align-items:center;
      gap:7px;
      color:#c3c4c2;
      font-size:12px;
    }
    .board-state:before{
      content:"";
      width:8px;
      height:8px;
      background:var(--lime);
      border-radius:50%;
    }
    .board-main{
      position:relative;
      z-index:1;
      padding:36px 0 25px;
      max-width:350px;
    }
    .board-version{
      font-size:58px;
      line-height:1;
      font-weight:850;
      color:var(--lime);
      margin-bottom:17px;
    }
    .board-main h2{font-size:25px;line-height:1.35;margin:0 0 9px}
    .board-main p{color:#b8b9b8;font-size:14px;margin:0;line-height:1.7}
    .board-footer{
      display:flex;
      gap:10px;
      position:absolute;
      left:28px;
      bottom:27px;
      z-index:2;
    }
    .board-chip{
      border:1px solid #505157;
      color:#d7d8d5;
      border-radius:4px;
      padding:4px 9px;
      font-size:12px;
    }
    .brand-strip{
      background:var(--lime);
      color:var(--ink);
      min-height:68px;
      display:flex;
      align-items:center;
    }
    .strip-items{
      display:flex;
      gap:28px;
      flex-wrap:wrap;
      font-size:13px;
      font-weight:800;
    }
    .strip-items span{display:inline-flex;align-items:center;gap:8px}
    .strip-items span:before{
      content:"";
      width:7px;
      height:7px;
      background:var(--ink);
      border-radius:50%;
    }
    .section{padding:92px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:25px;
      margin-bottom:38px;
    }
    .section-kicker{
      color:var(--coral);
      font-size:12px;
      font-weight:850;
      letter-spacing:1.5px;
    }
    .section h2{
      font-size:34px;
      line-height:1.3;
      margin:7px 0 0;
      font-weight:820;
    }
    .section-lead{
      color:var(--muted);
      max-width:490px;
      font-size:14px;
      margin:0;
    }
    .timeline{
      position:relative;
      max-width:960px;
      margin:0 auto;
      border-top:1px solid var(--line);
    }
    .timeline-item{
      display:grid;
      grid-template-columns:150px 22px 1fr 100px;
      gap:20px;
      align-items:start;
      padding:30px 0;
      border-bottom:1px solid var(--line);
      transition:background .2s,padding .2s;
    }
    .timeline-item:hover{
      background:rgba(201,242,58,.12);
      padding-left:14px;
      padding-right:14px;
    }
    .timeline-date{
      color:var(--muted);
      font-size:13px;
      padding-top:3px;
    }
    .timeline-date b{
      display:block;
      color:var(--text);
      font-size:17px;
      line-height:1.35;
      margin-bottom:3px;
    }
    .timeline-dot{
      width:14px;
      height:14px;
      border:3px solid var(--lime);
      border-radius:50%;
      background:var(--paper);
      margin-top:6px;
      position:relative;
    }
    .timeline-dot:after{
      content:"";
      width:1px;
      height:95px;
      background:var(--line);
      position:absolute;
      top:11px;
      left:4px;
    }
    .timeline-item:last-child .timeline-dot:after{display:none}
    .timeline-content h3{
      font-size:20px;
      line-height:1.45;
      margin:0 0 7px;
      font-weight:780;
    }
    .timeline-content p{
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
      margin:0;
      max-width:620px;
    }
    .timeline-meta{
      display:flex;
      justify-content:flex-end;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      color:var(--ink);
      background:var(--lime);
      border-radius:4px;
      padding:2px 8px;
      font-size:12px;
      line-height:1.7;
      font-weight:750;
      white-space:nowrap;
      height:max-content;
    }
    .tag-coral{background:var(--coral);color:var(--white)}
    .tag-muted{background:var(--soft);color:var(--muted)}
    .detail-link{
      display:inline-flex;
      align-items:center;
      gap:7px;
      color:var(--text);
      font-size:13px;
      font-weight:750;
      margin-top:13px;
    }
    .detail-link span{
      color:var(--coral);
      font-size:19px;
      transition:transform .2s;
    }
    .detail-link:hover span{transform:translateX(4px)}
    .dark-section{
      background:var(--ink);
      color:var(--white);
      padding:84px 0;
    }
    .dark-section .section-kicker{color:var(--lime)}
    .dark-section .section-lead{color:#b8b9b8}
    .update-focus{
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:70px;
      align-items:center;
    }
    .focus-title{
      font-size:35px;
      line-height:1.35;
      margin:8px 0 17px;
      font-weight:820;
    }
    .focus-copy{
      color:#c4c5c3;
      max-width:560px;
      font-size:15px;
      line-height:1.85;
      margin-bottom:25px;
    }
    .focus-list{
      list-style:none;
      margin:0;
      padding:0;
      border-top:1px solid #3e3f44;
    }
    .focus-list li{
      display:flex;
      align-items:center;
      gap:12px;
      padding:13px 0;
      border-bottom:1px solid #3e3f44;
      color:#dadbd8;
      font-size:14px;
    }
    .focus-list li:before{
      content:"✓";
      width:20px;
      height:20px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:var(--ink);
      background:var(--lime);
      font-size:12px;
      font-weight:900;
    }
    .change-panel{
      border-left:3px solid var(--lime);
      padding:12px 0 12px 28px;
    }
    .change-panel small{
      color:#999b9d;
      display:block;
      font-size:12px;
      margin-bottom:10px;
    }
    .change-panel strong{
      display:block;
      font-size:48px;
      line-height:1;
      color:var(--lime);
      margin-bottom:18px;
    }
    .change-panel p{color:#c3c4c2;margin:0;font-size:14px}
    .guide-section{padding:88px 0}
    .guide-nav{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      border-top:1px solid var(--line);
      border-bottom:1px solid var(--line);
    }
    .guide-entry{
      min-height:145px;
      padding:24px 25px;
      border-right:1px solid var(--line);
      transition:background .2s,transform .2s;
    }
    .guide-entry:nth-child(3n){border-right:0}
    .guide-entry:hover{background:var(--white);transform:translateY(-2px)}
    .guide-entry b{
      color:var(--coral);
      font-size:13px;
      display:block;
      margin-bottom:9px;
    }
    .guide-entry h3{font-size:19px;margin:0 0 6px;line-height:1.4}
    .guide-entry p{color:var(--muted);font-size:13px;line-height:1.65;margin:0}
    .faq-section{padding:88px 0;background:var(--white)}
    .faq-layout{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:90px;
    }
    .faq-intro h2{max-width:320px}
    .faq-intro p{color:var(--muted);font-size:14px;max-width:310px;margin-top:18px}
    .faq-wrap{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{
      width:100%;
      background:none;
      border:0;
      padding:21px 0;
      text-align:left;
      display:flex;
      justify-content:space-between;
      align-items:center;
      color:var(--text);
      font-weight:750;
      font-size:17px;
      gap:20px;
    }
    .faq-question span:last-child{
      font-size:25px;
      color:var(--coral);
      font-weight:400;
      min-width:20px;
      text-align:center;
    }
    .faq-ans{
      display:none;
      color:var(--muted);
      font-size:14px;
      padding:0 42px 20px 0;
      line-height:1.8;
    }
    .faq-item.open .faq-ans{display:block}
    .faq-item.open .faq-question{color:var(--ink)}
    .faq-item.open{border-left:3px solid var(--lime);padding-left:17px}
    .cta-section{padding:80px 0}
    .cta-band{
      background:var(--lime);
      border-radius:8px;
      padding:38px 48px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:30px;
    }
    .cta-band h2{font-size:30px;line-height:1.35;margin:0 0 7px;font-weight:820}
    .cta-band p{margin:0;color:#49530f;font-size:14px}
    .site-footer{
      background:var(--ink);
      color:var(--white);
      padding:62px 0 22px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.7fr 1fr 1fr 1fr;
      gap:40px;
      padding-bottom:47px;
      border-bottom:1px solid #3d3e43;
    }
    .footer-brand p{color:#aeb0b2;font-size:13px;max-width:285px;margin:18px 0 0}
    .footer-title{font-size:14px;font-weight:800;margin-bottom:14px}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:7px 0}
    .footer-links a{color:#aeb0b2;font-size:13px;transition:color .2s}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:20px;
      padding-top:19px;
      color:#8e9094;
      font-size:12px;
    }
    @media (max-width:1024px){
      .header-inner{gap:15px}
      .logo{min-width:220px}
      .main-nav a{padding-left:8px;padding-right:8px}
      .update-hero-grid{gap:40px}
      .faq-layout{gap:45px}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.header-inner{height:68px}
      .logo{min-width:0;flex:1}
      .logo-text{font-size:14px}
      .logo-text small{font-size:9px}
      .header-action .btn{min-height:40px;padding:0 13px;font-size:12px}
      .menu-toggle{display:block}
      .main-nav{
        display:none;
        position:absolute;
        top:68px;
        left:0;
        right:0;
        background:var(--paper);
        border-bottom:1px solid var(--line);
        padding:12px 16px 18px;
        flex-direction:column;
        align-items:stretch;
        gap:2px;
      }
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 9px;border-bottom:0;border-left:3px solid transparent}
      .main-nav a:hover,.main-nav a.active{border-left-color:var(--lime);border-bottom-color:transparent;background:rgba(201,242,58,.14)}
      .breadcrumb-wrap{padding-top:18px}
      .update-hero{padding:42px 0 52px}
      .update-hero-grid{grid-template-columns:1fr;gap:38px}
      .update-hero h1{font-size:40px}
      .hero-desc{font-size:15px}
      .update-board{min-height:300px;padding:23px}
      .board-version{font-size:46px}
      .board-main{padding-top:28px}
      .board-footer{left:23px;bottom:22px}
      .section,.guide-section,.faq-section{padding:58px 0}
      .section-head{display:block;margin-bottom:25px}
      .section-lead{margin-top:13px}
      .section h2{font-size:29px}
      .timeline-item{
        grid-template-columns:76px 17px 1fr;
        gap:12px;
        padding:24px 0;
      }
      .timeline-meta{grid-column:3;justify-content:flex-start;margin-top:9px}
      .timeline-content h3{font-size:17px}
      .timeline-content p{font-size:13px}
      .timeline-dot:after{height:125px}
      .dark-section{padding:58px 0}
      .update-focus{grid-template-columns:1fr;gap:38px}
      .focus-title{font-size:29px}
      .guide-nav{grid-template-columns:1fr 1fr}
      .guide-entry{border-bottom:1px solid var(--line)}
      .guide-entry:nth-child(3n){border-right:1px solid var(--line)}
      .guide-entry:nth-child(2n){border-right:0}
      .faq-layout{grid-template-columns:1fr;gap:25px}
      .faq-intro h2{max-width:none}
      .faq-intro p{max-width:500px}
      .cta-section{padding:50px 0}
      .cta-band{display:block;padding:29px 25px}
      .cta-band .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1.4fr 1fr;gap:30px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      .header-action{display:none}
      .logo-text{font-size:13px}
      .update-hero h1{font-size:35px}
      .update-board{min-height:275px}
      .board-main h2{font-size:21px}
      .board-version{font-size:41px}
      .strip-items{gap:12px 20px}
      .timeline-item{grid-template-columns:67px 14px 1fr;gap:9px}
      .timeline-date b{font-size:14px}
      .guide-nav{grid-template-columns:1fr}
      .guide-entry,.guide-entry:nth-child(3n){border-right:0}
      .footer-grid{grid-template-columns:1fr 1fr;gap:26px 18px}
      .footer-brand{grid-column:1/-1}
    }

/* roulang page: category5 */
:root{
      --lime:#c9f23a;
      --lime-light:#dfff65;
      --coral:#ff6758;
      --ink:#191a1f;
      --text:#24252a;
      --muted:#6e7075;
      --paper:#f4f3ee;
      --white:#fff;
      --line:#d9d9d2;
      --soft:#ebeae3;
      --radius:8px;
      --shadow:0 12px 30px rgba(25,26,31,.08);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(244,243,238,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .header-inner{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:.2px}
    .logo-mark{width:31px;height:31px;background:var(--lime);border-radius:6px;display:grid;place-items:center;color:var(--ink);font-size:18px;font-weight:900}
    .logo-text{font-size:16px;line-height:1.25}
    .logo-text small{display:block;color:var(--muted);font-size:10px;font-weight:600;margin-top:2px;letter-spacing:1px}
    .main-nav{display:flex;align-items:center;gap:4px;flex:1}
    .main-nav a{padding:8px 12px;font-size:14px;color:#55575c;border-bottom:3px solid transparent;transition:.2s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);border-bottom-color:var(--lime)}
    .header-action{white-space:nowrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border:1px solid var(--ink);border-radius:6px;font-weight:750;font-size:14px;transition:transform .2s,background .2s,color .2s,border-color .2s}
    .btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
    .btn-primary:hover{background:var(--lime-light);transform:translateY(-2px)}
    .btn-dark{background:var(--ink);color:var(--white);border-color:var(--ink)}
    .btn-dark:hover{background:#35363c;transform:translateY(-2px)}
    .btn-outline{background:transparent;color:var(--ink)}
    .btn-outline:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .menu-toggle{display:none;background:none;border:0;font-size:25px;padding:8px}
    
    .page-hero{background:var(--ink);color:var(--white);padding:88px 0 82px;position:relative;overflow:hidden}
    .page-hero:after{content:"05";position:absolute;right:7%;bottom:-45px;color:rgba(201,242,58,.1);font-size:220px;font-weight:900;line-height:1}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:#9b9da1;font-size:13px;margin-bottom:30px;position:relative;z-index:1}
    .breadcrumb a:hover{color:var(--lime)}
    .breadcrumb strong{color:var(--lime);font-weight:600}
    .hero-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:end;position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:1px;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--lime)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,58px);line-height:1.2;letter-spacing:0;font-weight:850;margin-bottom:22px}
    .hero-summary{max-width:650px;color:#d1d1d0;font-size:17px;line-height:1.85;margin-bottom:28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .page-hero .btn-outline{color:var(--white);border-color:#8b8c8d}
    .page-hero .btn-outline:hover{background:var(--white);color:var(--ink)}
    .notice-board{border-left:3px solid var(--lime);padding:23px 26px;background:#24252b}
    .notice-board .board-label{color:var(--lime);font-size:12px;font-weight:800;letter-spacing:1.5px;margin-bottom:15px}
    .board-row{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid #414247;padding:13px 0;font-size:14px}
    .board-row:last-child{border-bottom:0;padding-bottom:0}
    .board-row span{color:#aeb0b2}.board-row b{font-weight:700;color:#fff;text-align:right}
    
    .section{padding:88px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:34px}
    .section-kicker{color:var(--coral);font-size:12px;font-weight:850;letter-spacing:1.5px}
    h2{font-size:34px;line-height:1.3;margin:7px 0 0;font-weight:820}
    .section-lead{color:var(--muted);max-width:510px;font-size:14px;margin-bottom:0}
    .activity-feature{display:grid;grid-template-columns:1.05fr .95fr;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .activity-visual{min-height:360px;background:var(--lime);position:relative;padding:32px;display:flex;align-items:end}
    .activity-visual:before{content:"活动";position:absolute;top:28px;right:32px;font-size:100px;line-height:1;color:rgba(25,26,31,.1);font-weight:900}
    .visual-lines{position:absolute;inset:0;background:linear-gradient(135deg,transparent 48%,rgba(25,26,31,.12) 49%,transparent 50%),linear-gradient(45deg,transparent 48%,rgba(25,26,31,.09) 49%,transparent 50%);background-size:42px 42px}
    .visual-caption{position:relative;z-index:1}
    .visual-caption .status{display:inline-block;background:var(--ink);color:var(--lime);padding:5px 10px;border-radius:4px;font-size:12px;font-weight:800;margin-bottom:15px}
    .visual-caption h3{font-size:30px;line-height:1.3;margin-bottom:8px;font-weight:850}
    .visual-caption p{font-size:14px;margin-bottom:0}
    .activity-info{padding:39px 42px}
    .activity-info .meta{display:flex;gap:12px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:19px}
    .tag{color:var(--ink);background:var(--lime);border-radius:4px;padding:3px 9px;font-weight:750}
    .activity-info h3{font-size:25px;line-height:1.4;margin-bottom:14px}
    .activity-info p{color:var(--muted);font-size:15px}
    .info-list{list-style:none;margin:23px 0 27px;padding:0;border-top:1px solid var(--line)}
    .info-list li{display:flex;justify-content:space-between;gap:22px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
    .info-list span{color:var(--muted)}.info-list b{text-align:right}
    
    .notice-section{background:var(--soft)}
    .notice-layout{display:grid;grid-template-columns:280px 1fr;gap:70px}
    .notice-index{border-top:2px solid var(--ink)}
    .notice-index a{display:flex;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line);font-size:14px}
    .notice-index a:hover,.notice-index a.current{color:var(--coral)}
    .notice-index a.current{font-weight:800}
    .notice-list{border-top:1px solid var(--line)}
    .notice-item{display:grid;grid-template-columns:125px 1fr 25px;gap:24px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);transition:.2s}
    .notice-item:hover{padding-left:9px;background:rgba(255,255,255,.52)}
    .notice-date{font-size:13px;color:var(--muted)}
    .notice-date strong{display:block;font-size:22px;line-height:1.2;color:var(--ink)}
    .notice-item h3{font-size:18px;line-height:1.45;margin-bottom:5px}
    .notice-item p{font-size:14px;color:var(--muted);margin-bottom:0}
    .state{display:inline-block;font-size:11px;font-weight:800;padding:2px 8px;border-radius:4px;margin-bottom:7px}
    .state-open{background:var(--lime);color:var(--ink)}
    .state-soon{background:#ffe0a1;color:#674400}
    .state-closed{background:#deded9;color:#6e7075}
    .arrow{font-size:22px;color:var(--coral)}
    
    .steps-section{padding:92px 0}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{padding:28px 25px 32px;border-right:1px solid var(--line);position:relative}
    .step:last-child{border-right:0}
    .step-number{font-size:13px;color:var(--coral);font-weight:900;letter-spacing:1px}
    .step h3{font-size:20px;margin:24px 0 8px}
    .step p{color:var(--muted);font-size:14px;margin-bottom:0}
    
    .rules-section{background:var(--ink);color:var(--white)}
    .rules-section .section-kicker{color:var(--lime)}
    .rules-section .section-lead{color:#aeb0b2}
    .rules-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .rule{border:1px solid #3d3e44;padding:25px;background:#222329}
    .rule-mark{width:28px;height:28px;background:var(--lime);color:var(--ink);border-radius:4px;display:grid;place-items:center;font-weight:900;margin-bottom:18px}
    .rule h3{font-size:18px;margin-bottom:8px}
    .rule p{font-size:14px;color:#b8b9bb;margin-bottom:0}
    
    .faq-section{padding:88px 0}
    .faq-wrap{max-width:860px;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;background:none;border:0;padding:21px 0;text-align:left;display:flex;justify-content:space-between;align-items:center;color:var(--text);font-weight:750;font-size:17px}
    .faq-question span:last-child{font-size:25px;color:var(--coral);font-weight:400}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 44px 20px 0}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    
    .cta{background:var(--lime);padding:58px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:30px;margin:0 0 8px}.cta p{margin:0;font-size:14px}
    
    .site-footer{background:var(--ink);color:#fff;padding:64px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
    .footer-brand p{color:#9b9da1;font-size:13px;max-width:260px;margin:20px 0 0}
    .footer-title{font-size:14px;font-weight:800;margin-bottom:15px;color:var(--lime)}
    .footer-links{list-style:none;margin:0;padding:0}.footer-links li{margin:7px 0}
    .footer-links a{color:#b7b8bb;font-size:13px;transition:.2s}.footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid #38393f;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#85878b;font-size:12px}
    
    @media(max-width:1024px){
      .header-inner{gap:12px}.logo{min-width:210px}.main-nav a{padding:8px 7px}
      .hero-layout{gap:35px}.notice-layout{gap:35px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.header-inner{height:68px}.logo{min-width:0;flex:1}.logo-text{font-size:14px}
      .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 16px;flex-direction:column;align-items:stretch}
      .main-nav.show{display:flex}.main-nav a{padding:12px 8px;border-bottom:1px solid var(--line)}
      .header-action .btn{min-height:40px;padding:0 12px;font-size:13px}.menu-toggle{display:block}
      .page-hero{padding:58px 0 64px}.hero-layout{grid-template-columns:1fr;gap:34px}
      .page-hero:after{font-size:150px;right:-5px}.hero-summary{font-size:15px}
      .section,.steps-section,.faq-section{padding:58px 0}.section-head{display:block;margin-bottom:26px}.section-lead{margin-top:12px}
      h2{font-size:28px}.activity-feature{grid-template-columns:1fr}.activity-visual{min-height:270px}.activity-info{padding:28px 24px}
      .notice-layout{grid-template-columns:1fr;gap:35px}.notice-index{display:flex;overflow:auto;gap:20px;border-top:0;border-bottom:1px solid var(--line)}
      .notice-index a{white-space:nowrap;border-bottom:3px solid transparent;padding:10px 0}.notice-index a.current{border-bottom-color:var(--lime)}
      .notice-item{grid-template-columns:86px 1fr 18px;gap:13px}.notice-item h3{font-size:16px}.notice-item p{font-size:13px}
      .steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .rules-grid{grid-template-columns:1fr}.cta-inner{display:block}.cta .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}
    }
    @media(max-width:520px){
      .header-action{display:none}.logo-text small{font-size:9px}.page-hero h1{font-size:38px}
      .hero-actions .btn{width:100%}.notice-item{grid-template-columns:1fr 20px}.notice-date{display:flex;gap:8px;align-items:center}.notice-date strong{font-size:18px}.notice-item p{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
      .steps{grid-template-columns:1fr}.step{border-right:0!important;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
    }

/* roulang page: category4 */
:root{
      --lime:#c9f23a;
      --lime-light:#dfff65;
      --coral:#ff6758;
      --ink:#191a1f;
      --text:#24252a;
      --muted:#6e7075;
      --paper:#f4f3ee;
      --white:#fff;
      --line:#d9d9d2;
      --soft:#ebeae3;
      --radius:8px;
      --shadow:0 12px 30px rgba(25,26,31,.08);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;background:var(--paper);color:var(--text);line-height:1.8;font-size:16px}
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(244,243,238,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .header-inner{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:.2px}
    .logo-mark{width:31px;height:31px;background:var(--lime);border-radius:6px;display:grid;place-items:center;color:var(--ink);font-size:18px;font-weight:900}
    .logo-text{font-size:16px;line-height:1.25}
    .logo-text small{display:block;color:var(--muted);font-size:10px;font-weight:600;margin-top:2px;letter-spacing:1px}
    .main-nav{display:flex;align-items:center;gap:4px;flex:1}
    .main-nav a{padding:8px 12px;font-size:14px;color:#55575c;border-bottom:3px solid transparent;transition:.2s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);border-bottom-color:var(--lime)}
    .header-action{white-space:nowrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border:1px solid var(--ink);border-radius:6px;font-weight:750;font-size:14px;transition:transform .2s,background .2s,color .2s,border-color .2s}
    .btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
    .btn-primary:hover{background:var(--lime-light);transform:translateY(-2px)}
    .btn-dark{background:var(--ink);color:var(--white);border-color:var(--ink)}
    .btn-dark:hover{background:#35363c;transform:translateY(-2px)}
    .btn-outline{background:transparent;color:var(--ink)}
    .btn-outline:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .menu-toggle{display:none;background:none;border:0;font-size:25px;padding:8px;color:var(--ink)}
    .breadcrumb-bar{padding:22px 0 10px;color:var(--muted);font-size:13px}
    .breadcrumb-bar a:hover{color:var(--ink)}
    .breadcrumb-bar span{margin:0 9px;color:#a1a29e}
    .guide-hero{padding:42px 0 76px;position:relative;overflow:hidden}
    .guide-hero:after{content:"04";position:absolute;right:5%;bottom:-40px;color:rgba(25,26,31,.045);font-size:220px;font-weight:900;line-height:1;pointer-events:none}
    .hero-copy{max-width:760px;position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--coral);font-size:13px;font-weight:800;letter-spacing:1px;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--coral)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,58px);line-height:1.2;letter-spacing:0;font-weight:850;margin-bottom:20px}
    h1 strong{color:#6d8900;font-weight:850}
    .hero-intro{max-width:680px;color:var(--muted);font-size:17px;line-height:1.9;margin-bottom:28px}
    .hero-links{display:flex;gap:12px;flex-wrap:wrap}
    .guide-band{background:var(--ink);color:var(--white);padding:22px 0}
    .band-inner{display:flex;justify-content:space-between;align-items:center;gap:24px}
    .band-title{font-size:15px;font-weight:800}
    .band-items{display:flex;gap:28px;flex-wrap:wrap;color:#d2d3d0;font-size:13px}
    .band-items span{display:inline-flex;align-items:center;gap:8px}
    .band-items span:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .section{padding:88px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:34px}
    .section-kicker{color:var(--coral);font-size:12px;font-weight:850;letter-spacing:1.5px}
    .section h2{font-size:34px;line-height:1.3;margin:7px 0 0;font-weight:820}
    .section-lead{color:var(--muted);max-width:500px;font-size:14px;margin:0}
    .step-flow{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{min-height:258px;padding:27px 25px 25px;border-right:1px solid var(--line);position:relative;transition:.2s}
    .step:last-child{border-right:0}
    .step:hover{background:var(--white);box-shadow:var(--shadow)}
    .step-number{font-size:44px;line-height:1;color:var(--coral);font-weight:850;margin-bottom:25px}
    .step h3{font-size:20px;line-height:1.4;margin-bottom:10px}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .content-split{display:grid;grid-template-columns:4fr 7fr;gap:72px;align-items:start}
    .dark-panel{background:var(--ink);color:var(--white);padding:38px;border-radius:var(--radius);position:relative;overflow:hidden}
    .dark-panel:after{content:"NG28";position:absolute;right:-16px;bottom:-20px;color:rgba(255,255,255,.06);font-size:72px;font-weight:900}
    .dark-panel h3{font-size:25px;line-height:1.35;margin-bottom:16px;position:relative;z-index:1}
    .dark-panel p{color:#c9cacc;font-size:14px;position:relative;z-index:1}
    .tip-list{list-style:none;padding:0;margin:24px 0 0;position:relative;z-index:1}
    .tip-list li{display:flex;gap:10px;padding:12px 0;border-top:1px solid #3c3d42;color:#e1e1df;font-size:14px}
    .tip-list li:before{content:"✓";color:var(--lime);font-weight:900}
    .guide-table{border-top:1px solid var(--line)}
    .guide-row{display:grid;grid-template-columns:155px 1fr 90px;gap:22px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line)}
    .guide-row strong{font-size:16px}
    .guide-row p{font-size:14px;color:var(--muted);margin:0}
    .row-link{font-size:13px;color:#657d00;font-weight:800;text-align:right}
    .row-link:hover{color:var(--coral)}
    .notice-section{background:var(--soft);padding:76px 0}
    .notice-layout{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .notice-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.2s}
    .notice-card:hover{border-color:var(--lime);transform:translateY(-3px);box-shadow:var(--shadow)}
    .notice-card .tag{display:inline-block;color:var(--ink);background:var(--lime);border-radius:4px;padding:2px 8px;font-size:12px;font-weight:750;margin-bottom:14px}
    .notice-card h3{font-size:20px;line-height:1.45;margin-bottom:9px}
    .notice-card p{color:var(--muted);font-size:14px;margin-bottom:15px}
    .notice-card a{font-size:13px;font-weight:800;color:var(--ink)}
    .notice-card a:hover{color:#718b00}
    .faq-section{padding:88px 0}
    .faq-wrap{max-width:850px;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;background:none;border:0;padding:21px 0;text-align:left;display:flex;justify-content:space-between;align-items:center;color:var(--text);font-weight:750;font-size:17px}
    .faq-question span:last-child{font-size:25px;color:var(--coral);font-weight:400}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 45px 20px 0}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question{color:#657d00}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .download-cta{background:var(--lime);padding:52px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-inner h2{font-size:30px;line-height:1.35;margin:0 0 7px;font-weight:850}
    .cta-inner p{margin:0;color:#4b541e;font-size:14px}
    .site-footer{background:var(--ink);color:var(--white);padding:60px 0 22px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:38px;padding-bottom:44px}
    .footer-brand p{color:#aeb0b2;font-size:13px;max-width:260px;margin:18px 0 0}
    .footer-title{font-size:14px;font-weight:800;margin-bottom:15px}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:8px 0}
    .footer-links a{color:#aeb0b2;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #38393e;padding-top:20px;color:#8e9094;font-size:12px}
    @media (max-width:1024px){
      .header-inner{gap:15px}
      .logo{min-width:210px}
      .main-nav a{padding-left:8px;padding-right:8px}
      .content-split{gap:38px}
      .step-flow{grid-template-columns:repeat(2,1fr)}
      .step:nth-child(2){border-right:0}
      .step:nth-child(-n+2){border-bottom:1px solid var(--line)}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.header-inner{height:68px}
      .header-inner{gap:8px}
      .logo{min-width:0;flex:1}
      .logo-text{font-size:14px}
      .logo-text small{font-size:9px}
      .header-action .btn{min-height:40px;padding:0 12px;font-size:12px}
      .menu-toggle{display:block}
      .main-nav{display:none;position:absolute;left:0;right:0;top:68px;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 16px;flex-direction:column;align-items:stretch;gap:2px}
      .main-nav.show{display:flex}
      .main-nav a{padding:11px 12px;border-bottom:0;border-left:4px solid transparent}
      .main-nav a:hover,.main-nav a.active{border-left-color:var(--lime);background:var(--white)}
      .breadcrumb-bar{padding-top:17px}
      .guide-hero{padding:30px 0 55px}
      .guide-hero:after{font-size:150px;bottom:-15px}
      h1{font-size:40px;max-width:650px}
      .hero-intro{font-size:15px}
      .band-inner{display:block}
      .band-items{margin-top:10px;gap:14px}
      .section{padding:58px 0}
      .section-head{display:block;margin-bottom:25px}
      .section-lead{margin-top:12px}
      .content-split,.notice-layout{grid-template-columns:1fr;gap:24px}
      .guide-row{grid-template-columns:120px 1fr;gap:15px}
      .row-link{grid-column:2;text-align:left}
      .cta-inner{display:block}
      .cta-inner .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media (max-width:520px){
      .header-action{display:none}
      .logo-text{font-size:13px}
      h1{font-size:34px}
      .hero-links .btn{width:100%}
      .step-flow{grid-template-columns:1fr}
      .step{border-right:0;border-bottom:1px solid var(--line)!important;min-height:auto;padding:23px}
      .step:last-child{border-bottom:0!important}
      .step-number{font-size:36px;margin-bottom:15px}
      .guide-row{grid-template-columns:1fr;gap:4px}
      .row-link{grid-column:auto}
      .dark-panel{padding:26px}
      .footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category6 */
:root{
      --lime:#c9f23a;
      --lime-light:#dfff65;
      --coral:#ff6758;
      --ink:#191a1f;
      --text:#24252a;
      --muted:#6e7075;
      --paper:#f4f3ee;
      --white:#fff;
      --line:#d9d9d2;
      --soft:#ebeae3;
      --radius:8px;
      --shadow:0 12px 30px rgba(25,26,31,.08);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(244,243,238,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .header-inner{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:.2px}
    .logo-mark{width:31px;height:31px;background:var(--lime);border-radius:6px;display:grid;place-items:center;color:var(--ink);font-size:18px;font-weight:900}
    .logo-text{font-size:16px;line-height:1.25}
    .logo-text small{display:block;color:var(--muted);font-size:10px;font-weight:600;margin-top:2px;letter-spacing:1px}
    .main-nav{display:flex;align-items:center;gap:4px;flex:1}
    .main-nav a{padding:8px 12px;font-size:14px;color:#55575c;border-bottom:3px solid transparent;transition:.2s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);border-bottom-color:var(--lime)}
    .header-action{white-space:nowrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border:1px solid var(--ink);border-radius:6px;font-weight:750;font-size:14px;transition:transform .2s,background .2s,color .2s,border-color .2s}
    .btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
    .btn-primary:hover{background:var(--lime-light);transform:translateY(-2px)}
    .btn-dark{background:var(--ink);color:var(--white);border-color:var(--ink)}
    .btn-dark:hover{background:#35363c;transform:translateY(-2px)}
    .btn-outline{background:transparent;color:var(--ink)}
    .btn-outline:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .menu-toggle{display:none;background:none;border:0;font-size:25px;padding:8px}
    .page-hero{background:var(--ink);color:var(--white);padding:86px 0 78px;position:relative;overflow:hidden}
    .page-hero:after{content:"?";position:absolute;right:9%;top:-35px;color:rgba(201,242,58,.12);font-size:300px;font-weight:900;line-height:1}
    .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 330px;gap:70px;align-items:end}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:1px;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--lime)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(40px,5vw,58px);line-height:1.2;letter-spacing:0;font-weight:850;margin-bottom:18px}
    h2{font-size:34px;line-height:1.3;margin-bottom:12px}
    h3{font-size:20px;line-height:1.45}
    .hero-desc{color:#d1d1d0;max-width:690px;font-size:17px;line-height:1.85;margin-bottom:28px}
    .hero-note{border-left:3px solid var(--lime);padding:11px 0 11px 18px;color:#c8c9c9;font-size:14px;max-width:300px}
    .section{padding:84px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:34px}
    .section-kicker{color:var(--coral);font-size:12px;font-weight:850;letter-spacing:1.5px}
    .section-lead{color:var(--muted);max-width:520px;font-size:14px}
    .faq-layout{display:grid;grid-template-columns:245px 1fr;gap:78px;align-items:start}
    .faq-index{position:sticky;top:105px;border-top:2px solid var(--ink)}
    .faq-index a{display:flex;justify-content:space-between;align-items:center;padding:15px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted);transition:.2s}
    .faq-index a:hover{color:var(--ink);padding-left:7px}
    .faq-index a span{color:var(--coral);font-weight:800}
    .faq-group{margin-bottom:48px}
    .faq-group-title{display:flex;align-items:center;gap:13px;margin-bottom:13px}
    .faq-group-title .number{width:32px;height:32px;display:grid;place-items:center;background:var(--lime);border-radius:5px;font-size:13px;font-weight:900}
    .faq-wrap{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;background:none;border:0;padding:20px 0;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--text);font-weight:750;font-size:17px}
    .faq-question span:last-child{font-size:25px;color:var(--coral);font-weight:400;transition:.2s}
    .faq-answer{display:none;color:var(--muted);font-size:14px;line-height:1.9;padding:0 45px 21px 0}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg);color:var(--ink)}
    .faq-item.open{border-left:3px solid var(--lime);padding-left:16px}
    .quick-download{background:var(--ink);color:var(--white);padding:64px 0}
    .download-grid{display:grid;grid-template-columns:1fr auto;gap:45px;align-items:center}
    .download-grid p{color:#bfc0c1;max-width:650px;margin-bottom:0;font-size:15px}
    .download-meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:20px;color:#c7c8c8;font-size:13px}
    .download-meta b{color:var(--lime);margin-right:5px}
    .support-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px 30px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .support-panel p{color:var(--muted);font-size:14px;margin-bottom:0}
    .tag{display:inline-block;color:var(--ink);background:var(--lime);border-radius:4px;padding:2px 8px;font-size:12px;font-weight:750}
    .site-footer{background:var(--ink);color:var(--white);padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px;padding-bottom:45px}
    .footer-brand p{color:#9b9da1;font-size:13px;max-width:270px;margin-top:18px}
    .footer-title{font-size:14px;font-weight:800;margin-bottom:15px;color:var(--lime)}
    .footer-links{list-style:none;margin:0;padding:0}
    .footer-links li{margin:8px 0}
    .footer-links a{font-size:13px;color:#b8b9bc;transition:.2s}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid #38393e;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#85878c;font-size:12px}
    @media(max-width:1024px){
      .main-nav a{padding-left:7px;padding-right:7px}
      .logo{min-width:210px}
      .hero-inner{grid-template-columns:1fr 250px;gap:35px}
      .faq-layout{gap:40px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.header-inner{height:68px}
      .header-inner{gap:10px;justify-content:space-between}
      .logo{min-width:0}
      .logo-text{font-size:14px}
      .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:15px 16px;flex-direction:column;align-items:stretch;gap:0}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 5px;border-bottom:1px solid var(--line)}
      .header-action{margin-left:auto}
      .header-action .btn{min-height:40px;padding:0 13px;font-size:13px}
      .menu-toggle{display:block}
      .page-hero{padding:58px 0 56px}
      .hero-inner{display:block}
      .page-hero:after{right:-20px;top:35px;font-size:180px}
      h1{font-size:40px}
      .hero-note{margin-top:30px}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-lead{margin-top:14px}
      .faq-layout{display:block}
      .faq-index{position:static;display:grid;grid-template-columns:1fr 1fr;margin-bottom:48px}
      .faq-index a{padding:12px 8px}
      .download-grid{display:block}
      .download-grid .btn{margin-top:25px}
      .support-panel{display:block}
      .support-panel .btn{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      .logo-mark{width:28px;height:28px}
      .logo-text small{font-size:9px}
      .header-action{display:none}
      h1{font-size:35px}
      h2{font-size:28px}
      .faq-index{grid-template-columns:1fr}
      .faq-question{font-size:15px}
      .faq-answer{font-size:13px}
      .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}