/* roulang page: index */
:root{
  --ink:#211d29;--ink-2:#302a3b;--paper:#f7f4ef;--card:#fffdf9;--muted:#756f7f;
  --line:#e6ded5;--coral:#f36f55;--coral-dark:#d95742;--cyan:#62d6c9;--yellow:#f5d66b;
  --purple:#6e587c;--shadow:0 18px 42px rgba(45,32,48,.09);--radius:18px;--max:1220px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px}
a{color:inherit;text-decoration:none} img{max-width:100%;display:block}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{height:78px;background:var(--ink);color:#fff;display:flex;align-items:center;border-bottom:1px solid rgba(255,255,255,.1);position:sticky;top:0;z-index:20}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:11px;font-size:16px;font-weight:800;letter-spacing:.2px;white-space:nowrap}
.logo-mark{width:34px;height:34px;border:2px solid var(--cyan);border-radius:9px;position:relative;display:grid;place-items:center;color:var(--yellow);font-size:15px}
.logo-mark:after{content:"";width:8px;height:8px;background:var(--coral);border-radius:50%;position:absolute;right:-4px;top:-4px}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;color:#d7d1dc}
.nav-links a{padding:27px 0;position:relative;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a.active:after{content:"";position:absolute;bottom:16px;left:0;right:0;height:3px;background:var(--coral);border-radius:4px}
.nav-download{background:var(--coral);color:#fff!important;padding:9px 15px!important;border-radius:9px}
.nav-download:hover{background:var(--coral-dark)}
.menu-btn{display:none;background:none;color:#fff;font-size:25px}
.hero{background:var(--ink);color:#fff;padding:78px 0 88px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(98,214,201,.18);border-radius:50%;right:-180px;top:-220px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:70px;position:relative}
.eyebrow,.section-kicker{color:var(--coral);font-size:13px;font-weight:800;letter-spacing:2px;text-transform:uppercase}
.hero h1{font-size:clamp(38px,5vw,68px);line-height:1.16;letter-spacing:-2px;margin:18px 0 22px;max-width:700px}
.hero h1 em{color:var(--cyan);font-style:normal}
.hero p{color:#c9c2d0;max-width:650px;font-size:18px;line-height:1.9}
.actions{display:flex;gap:13px;margin-top:32px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:10px;font-weight:700;transition:.25s;border:1px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--coral);color:#fff}.btn-primary:hover{background:var(--coral-dark)}
.btn-outline{border-color:#675d6e;color:#fff}.btn-outline:hover{border-color:var(--cyan);color:var(--cyan)}
.hero-note{font-size:13px!important;color:#948b9d!important;margin-top:15px}
.screen-board{background:#302a3b;border:1px solid #63586d;border-radius:20px;padding:17px;box-shadow:0 24px 60px rgba(0,0,0,.27);transform:rotate(2deg)}
.screen-top{display:flex;justify-content:space-between;align-items:center;padding:6px 5px 16px;color:#dbd3df;font-size:12px}
.signal{display:flex;gap:5px}.signal i{width:7px;height:7px;border-radius:50%;background:var(--cyan)}
.screen-feature{background:linear-gradient(135deg,#665273,#45354f);border-radius:14px;padding:22px;min-height:180px;position:relative;overflow:hidden}
.screen-feature:after{content:"RP";position:absolute;right:15px;bottom:-22px;font-size:110px;font-weight:900;color:rgba(255,255,255,.07)}
.screen-feature small{color:var(--yellow)}.screen-feature h3{font-size:26px;margin:12px 0 4px}.screen-feature p{font-size:13px;color:#d8d0db}
.screen-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}.mini-tile{background:#40364b;border-radius:12px;padding:14px;color:#eee;font-size:13px}.mini-tile b{display:block;color:var(--cyan);font-size:18px}
.section{padding:88px 0}.section.alt{background:#eee9e3}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:34px}.section h2{font-size:clamp(28px,3vw,42px);line-height:1.25;letter-spacing:-1px}.section-intro{max-width:620px;color:var(--muted);margin-top:10px}.text-link{color:var(--coral-dark);font-weight:700;white-space:nowrap}
.status-strip{margin-top:-34px;position:relative;z-index:2}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}.status-item{padding:23px 26px;border-right:1px solid var(--line)}.status-item:last-child{border:0}.status-label{color:var(--muted);font-size:13px}.status-value{font-size:21px;font-weight:800;margin-top:3px}.dot{display:inline-block;width:8px;height:8px;background:#4cbd91;border-radius:50%;margin-right:6px}
.lobby-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:18px}.lobby-main{min-height:315px;background:var(--purple);color:#fff;border-radius:var(--radius);padding:34px;position:relative;overflow:hidden}.lobby-main:after{content:"PLAY";position:absolute;right:-5px;bottom:-35px;font-weight:900;font-size:125px;color:rgba(255,255,255,.08)}.lobby-main h3{font-size:30px;max-width:420px;line-height:1.3}.lobby-main p{color:#e3dbe7;max-width:440px;margin:13px 0 28px}.tag-row{display:flex;gap:8px;flex-wrap:wrap}.tag{display:inline-flex;padding:4px 10px;border-radius:99px;background:#eee8df;color:#655d6d;font-size:12px}.tag.dark{background:rgba(255,255,255,.15);color:#fff}.lobby-side{display:grid;gap:18px}.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:25px}.side-card strong{font-size:20px;display:block;margin:10px 0 5px}.side-card p{color:var(--muted);font-size:14px}
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.topic-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:23px;min-height:190px;transition:.25s}.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d2b9aa}.topic-index{color:var(--coral);font-weight:800;font-size:13px}.topic-card h3{font-size:19px;margin:22px 0 8px}.topic-card p{font-size:14px;color:var(--muted)}
.news-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px}.featured-news{background:var(--ink);color:#fff;border-radius:var(--radius);padding:32px;min-height:290px;display:flex;flex-direction:column;justify-content:space-between}.featured-news p{color:#c9c0cf;margin-top:12px}.news-list{display:grid;gap:10px}.news-item{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:16px 19px;display:flex;justify-content:space-between;gap:20px;align-items:center;transition:.25s}.news-item:hover{border-color:var(--coral);transform:translateX(3px)}.news-item h3{font-size:16px;line-height:1.5}.news-item p{font-size:13px;color:var(--muted);margin-top:3px}.news-meta{white-space:nowrap;color:var(--muted);font-size:12px}.empty-state{color:#aaa;font-size:14px;padding:25px 0}
.announcement{border-left:4px solid var(--coral);background:var(--card);padding:25px 30px;border-radius:0 14px 14px 0;display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);border-right:1px solid var(--line)}.announcement h3{font-size:21px}.announcement p{color:var(--muted);margin-top:4px}
.download-panel{background:var(--ink);color:#fff;border-radius:22px;padding:42px;display:grid;grid-template-columns:1fr .9fr;gap:48px;align-items:center}.download-panel p{color:#c7bfcc;margin:13px 0 24px}.device-line{display:flex;gap:15px;align-items:end;justify-content:center}.device{width:118px;height:220px;border:5px solid #817487;border-radius:20px;padding:25px 9px 9px;background:#40364b;position:relative}.device:before{content:"";position:absolute;top:9px;left:39px;width:30px;height:4px;background:#817487;border-radius:3px}.device.large{height:270px;width:145px;background:#5c4967}.device-screen{height:100%;border-radius:11px;background:linear-gradient(150deg,var(--cyan),#51405f 58%,var(--coral));opacity:.85}.download-info{display:grid;gap:10px}.info-line{display:flex;justify-content:space-between;border-bottom:1px solid #4a4050;padding:10px 0;font-size:14px}.info-line span{color:#a89eae}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}.step{padding:28px 22px 10px;border-right:1px solid var(--line);position:relative}.step:last-child{border:0}.step-num{width:34px;height:34px;background:var(--coral);color:#fff;border-radius:50%;display:grid;place-items:center;font-weight:800;margin-bottom:17px}.step h3{font-size:18px}.step p{font-size:14px;color:var(--muted);margin-top:7px}
.help-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.help-card{background:var(--card);border:1px solid var(--line);padding:22px;border-radius:14px}.help-card h3{font-size:17px}.help-card p{font-size:14px;color:var(--muted);margin-top:8px}.help-card a{display:inline-block;margin-top:15px;color:var(--coral-dark);font-size:13px;font-weight:700}
.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.security-box{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px}.security-box h3{font-size:21px;margin-bottom:10px}.security-box p{color:var(--muted)}.security-box ul{padding-left:20px;margin-top:14px;color:var(--muted)}
.benefit-bar{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.benefit{padding:25px;background:#e4ddd5;border-radius:14px}.benefit b{font-size:18px;display:block}.benefit span{color:var(--muted);font-size:14px}
.activity-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.activity-feature{background:var(--coral);color:#fff;padding:32px;border-radius:18px;min-height:215px}.activity-feature p{color:#ffe9e2;margin-top:10px}.activity-list{display:grid;gap:10px}.activity-item{background:var(--card);border:1px solid var(--line);padding:16px 20px;border-radius:12px}.activity-item b{display:block}.activity-item span{color:var(--muted);font-size:13px}
.faq-list{max-width:850px}.faq-item{border-top:1px solid var(--line);padding:18px 0}.faq-item:last-child{border-bottom:1px solid var(--line)}.faq-item summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between}.faq-item summary:after{content:"+";color:var(--coral);font-size:22px}.faq-item[open] summary:after{content:"−"}.faq-item p{color:var(--muted);padding:12px 30px 0 0}
.contact-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:30px;align-items:start}.contact-copy p{color:var(--muted);margin-top:12px}.form{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:grid;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700}.field input,.field textarea,.field select{border:1px solid var(--line);background:#fff;padding:11px 13px;border-radius:9px;outline:none}.field textarea{min-height:100px;resize:vertical}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--coral);box-shadow:0 0 0 3px rgba(243,111,85,.14)}
.site-footer{background:var(--ink);color:#fff;padding:52px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px}.footer-brand p{color:#a9a0ae;font-size:14px;margin-top:14px;max-width:300px}.footer-col h3{font-size:14px;color:var(--yellow);margin-bottom:13px}.footer-col a{display:block;color:#bcb3c1;font-size:14px;margin:7px 0;transition:.2s}.footer-col a:hover{color:var(--cyan)}.copyright{border-top:1px solid #43394a;margin-top:40px;padding-top:18px;color:#8e8493;font-size:12px;display:flex;justify-content:space-between;gap:20px}
@media(max-width:1024px){.nav-links{gap:13px}.hero-grid{gap:35px}.topic-grid,.help-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 32px,620px)}.site-header{height:68px}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:15px 20px 25px;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid #403646}.nav-links.open{display:flex}.nav-links a{padding:12px 0}.nav-links a.active:after{bottom:4px}.nav-download{text-align:center;margin-top:8px}.menu-btn{display:block}.hero{padding:58px 0 70px}.hero-grid,.lobby-layout,.news-layout,.download-panel,.security-grid,.activity-grid,.contact-layout{grid-template-columns:1fr}.hero h1{font-size:42px}.screen-board{max-width:430px;margin:auto}.status-grid{grid-template-columns:1fr 1fr}.status-item:nth-child(2){border-right:0}.status-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.section{padding:65px 0}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:15px}.steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
@media(max-width:520px){body{font-size:15px}.logo{font-size:13px;white-space:normal;line-height:1.2}.logo-mark{flex:none}.hero h1{font-size:35px}.hero p{font-size:16px}.status-grid,.topic-grid,.help-grid,.benefit-bar,.steps,.form{grid-template-columns:1fr}.status-item,.step{border-right:0!important;border-bottom:1px solid var(--line)}.status-item:last-child,.step:last-child{border-bottom:0}.download-panel{padding:27px 21px}.device-line{transform:scale(.82);margin:-15px 0}.announcement{display:block}.announcement .btn{margin-top:16px}.footer-grid{grid-template-columns:1fr}.form{padding:20px}.field.full{grid-column:auto}}

/* roulang page: article */
:root{
      --ink:#211d29;
      --ink-2:#302a3b;
      --paper:#f7f4ef;
      --card:#fffdf9;
      --muted:#756f7f;
      --line:#e6ded5;
      --coral:#f36f55;
      --coral-dark:#d95742;
      --cyan:#62d6c9;
      --yellow:#f5d66b;
      --purple:#6e587c;
      --shadow:0 18px 42px rgba(45,32,48,.09);
      --shadow-soft:0 8px 24px rgba(45,32,48,.06);
      --radius:18px;
      --max:1220px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    :focus-visible{outline:3px solid rgba(98,214,201,.8);outline-offset:3px}
    .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}

    .site-header{
      height:78px;
      display:flex;
      align-items:center;
      position:sticky;
      top:0;
      z-index:20;
      color:#fff;
      background:var(--ink);
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:11px;
      color:#fff;
      font-size:16px;
      font-weight:800;
      line-height:1.25;
      letter-spacing:.2px;
      white-space:nowrap;
    }
    .logo-mark{
      width:34px;
      height:34px;
      display:grid;
      place-items:center;
      position:relative;
      color:var(--yellow);
      border:2px solid var(--cyan);
      border-radius:9px;
      font-size:15px;
    }
    .logo-mark:after{
      content:"";
      position:absolute;
      top:-4px;
      right:-4px;
      width:8px;
      height:8px;
      background:var(--coral);
      border-radius:50%;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:24px;
      color:#d7d1dc;
      font-size:14px;
    }
    .nav-links a{
      position:relative;
      padding:27px 0;
      transition:color .25s ease;
    }
    .nav-links a:hover,
    .nav-links a.active{color:#fff}
    .nav-links a.active:after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:16px;
      height:3px;
      background:var(--coral);
      border-radius:4px;
    }
    .nav-links .nav-download{
      padding:9px 15px!important;
      color:#fff!important;
      background:var(--coral);
      border-radius:9px;
    }
    .nav-links .nav-download:hover{background:var(--coral-dark)}
    .menu-btn{
      display:none;
      padding:4px 8px;
      color:#fff;
      background:transparent;
      font-size:25px;
    }

    .article-hero{
      position:relative;
      padding:66px 0 60px;
      color:#fff;
      background:var(--ink);
      overflow:hidden;
    }
    .article-hero:before{
      content:"";
      width:410px;
      height:410px;
      position:absolute;
      right:-150px;
      top:-205px;
      border:1px solid rgba(98,214,201,.2);
      border-radius:50%;
    }
    .article-hero:after{
      content:"";
      width:170px;
      height:170px;
      position:absolute;
      left:8%;
      bottom:-105px;
      border:1px solid rgba(243,111,85,.25);
      transform:rotate(45deg);
    }
    .hero-inner{position:relative;z-index:1}
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:9px;
      margin:0 0 25px;
      color:#aaa2b2;
      font-size:13px;
    }
    .breadcrumb a{color:var(--cyan)}
    .breadcrumb .slash{color:#6f6678}
    .article-label{
      display:inline-flex;
      align-items:center;
      min-height:28px;
      padding:3px 12px;
      color:var(--yellow);
      background:rgba(245,214,107,.12);
      border:1px solid rgba(245,214,107,.3);
      border-radius:99px;
      font-size:12px;
      font-weight:700;
    }
    .article-hero h1{
      max-width:900px;
      margin:18px 0 18px;
      color:#fff;
      font-size:clamp(34px,5vw,62px);
      line-height:1.2;
      letter-spacing:-1.8px;
      overflow-wrap:anywhere;
    }
    .article-summary{
      max-width:820px;
      margin:0;
      color:#c9c2d0;
      font-size:18px;
      line-height:1.9;
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px 22px;
      margin-top:28px;
      color:#a9a1b0;
      font-size:13px;
    }
    .meta-item{display:inline-flex;align-items:center;gap:7px}
    .meta-item strong{color:#eee8f0;font-weight:600}

    .article-main{padding:70px 0 88px}
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) 280px;
      justify-content:center;
      gap:34px;
      align-items:start;
    }
    .article-body{
      min-width:0;
      padding:42px 48px;
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
    }
    .article-body h2{
      margin:38px 0 14px;
      padding-left:16px;
      border-left:4px solid var(--coral);
      color:var(--ink-2);
      font-size:28px;
      line-height:1.35;
    }
    .article-body h3{
      margin:28px 0 10px;
      color:var(--purple);
      font-size:21px;
      line-height:1.4;
    }
    .article-body p{margin:0 0 20px}
    .article-body ul,
    .article-body ol{
      margin:14px 0 24px;
      padding-left:25px;
    }
    .article-body li{margin:7px 0}
    .article-body blockquote{
      margin:28px 0;
      padding:20px 24px;
      color:#5e5666;
      background:#f1ece6;
      border-left:4px solid var(--cyan);
      border-radius:0 12px 12px 0;
    }
    .article-body table{
      width:100%;
      margin:25px 0;
      border-collapse:collapse;
      background:#fff;
      font-size:14px;
    }
    .article-body th,
    .article-body td{
      padding:12px 14px;
      border:1px solid var(--line);
      text-align:left;
    }
    .article-body th{background:#f1ece6;color:var(--ink-2)}
    .article-body img{
      width:auto;
      margin:28px auto 8px;
      border-radius:12px;
    }
    .article-body figure{margin:28px 0}
    .article-body figcaption{
      color:var(--muted);
      text-align:center;
      font-size:13px;
    }
    .article-body hr{
      margin:34px 0;
      border:0;
      border-top:1px solid var(--line);
    }
    .article-body a{
      color:var(--coral-dark);
      text-decoration:underline;
      text-decoration-thickness:1px;
      text-underline-offset:3px;
    }

    .side-stack{display:grid;gap:16px}
    .side-card{
      padding:24px;
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
    }
    .side-card.dark{
      color:#fff;
      background:var(--purple);
      border-color:var(--purple);
    }
    .side-card h2{
      margin:0 0 12px;
      font-size:19px;
      line-height:1.4;
    }
    .side-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .side-card.dark p{color:#e0d7e4}
    .side-list{display:grid;gap:12px;margin-top:17px}
    .side-list a{
      display:flex;
      justify-content:space-between;
      gap:12px;
      padding-bottom:10px;
      color:var(--ink-2);
      border-bottom:1px solid var(--line);
      font-size:14px;
      transition:color .2s ease;
    }
    .side-list a:last-child{border-bottom:0;padding-bottom:0}
    .side-list a:hover{color:var(--coral-dark)}
    .side-list span{color:var(--coral-dark);font-weight:700}
    .safe-note{
      display:flex;
      gap:12px;
      margin-top:18px;
      padding:15px;
      color:#5d5664;
      background:#faf1d3;
      border:1px solid #eadb9a;
      border-radius:12px;
      font-size:13px;
      line-height:1.65;
    }
    .safe-note b{color:var(--ink-2);white-space:nowrap}

    .article-support{
      padding:0 0 88px;
      background:var(--paper);
    }
    .support-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .support-card{
      padding:28px 30px;
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius);
      transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    }
    .support-card:hover{
      transform:translateY(-3px);
      border-color:#d5b8aa;
      box-shadow:var(--shadow-soft);
    }
    .support-card h2{
      margin:0 0 9px;
      font-size:21px;
      line-height:1.4;
    }
    .support-card p{margin:0;color:var(--muted);font-size:14px}
    .support-card .btn{margin-top:20px}

    .article-actions{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      margin-top:34px;
      padding-top:26px;
      border-top:1px solid var(--line);
    }
    .action-note{color:var(--muted);font-size:13px}
    .action-links{display:flex;flex-wrap:wrap;gap:10px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:0 20px;
      border:1px solid transparent;
      border-radius:10px;
      font-weight:700;
      transition:transform .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{color:#fff;background:var(--coral)}
    .btn-primary:hover{color:#fff;background:var(--coral-dark)}
    .btn-outline{
      color:var(--ink-2);
      background:transparent;
      border-color:#cfc4ba;
    }
    .btn-outline:hover{color:var(--coral-dark);border-color:var(--coral)}
    .btn-light{
      color:var(--ink-2);
      background:#fffdf9;
    }
    .btn-light:hover{color:var(--coral-dark);background:#fff}
    .not-found{
      padding:52px 20px;
      text-align:center;
    }
    .not-found h2{margin:0 0 10px;font-size:28px}
    .not-found p{margin:0 0 22px;color:var(--muted)}

    .site-footer{
      padding:58px 0 25px;
      color:#d7d0dc;
      background:var(--ink);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr repeat(3,1fr);
      gap:34px;
      padding-bottom:40px;
    }
    .footer-brand p{
      max-width:240px;
      margin:18px 0 0;
      color:#a9a1b0;
      font-size:14px;
    }
    .footer-col{display:grid;align-content:start;gap:8px}
    .footer-col h3{
      margin:0 0 8px;
      color:#fff;
      font-size:15px;
    }
    .footer-col a{
      width:max-content;
      color:#aaa2b0;
      font-size:14px;
      transition:color .2s ease;
    }
    .footer-col a:hover{color:var(--cyan)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:20px;
      padding-top:22px;
      color:#8e8695;
      border-top:1px solid rgba(255,255,255,.1);
      font-size:12px;
    }

    @media (max-width:1024px){
      .nav-links{gap:15px}
      .article-layout{grid-template-columns:minmax(0,820px)}
      .side-stack{grid-template-columns:1fr 1fr}
      .side-card.dark{grid-column:span 2}
      .footer-grid{grid-template-columns:1.3fr repeat(3,1fr);gap:22px}
    }
    @media (max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .site-header{height:70px}
      .menu-btn{display:block}
      .nav-links{
        display:none;
        position:absolute;
        top:70px;
        left:0;
        right:0;
        padding:15px 20px 22px;
        align-items:stretch;
        flex-direction:column;
        gap:0;
        color:#d7d1dc;
        background:var(--ink);
        border-top:1px solid rgba(255,255,255,.1);
        box-shadow:0 18px 28px rgba(0,0,0,.2);
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 0}
      .nav-links a.active:after{right:auto;bottom:5px;width:30px}
      .nav-links .nav-download{margin-top:8px;padding:11px 15px!important;text-align:center}
      .article-hero{padding:48px 0 45px}
      .article-hero h1{font-size:38px;letter-spacing:-1px}
      .article-summary{font-size:16px}
      .article-main{padding:38px 0 58px}
      .article-layout{display:block}
      .article-body{padding:30px 22px}
      .article-body h2{font-size:24px}
      .side-stack{display:grid;margin-top:20px;grid-template-columns:1fr}
      .side-card.dark{grid-column:auto}
      .support-grid{grid-template-columns:1fr}
      .article-actions{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:span 2}
      .copyright{flex-direction:column;gap:5px}
    }
    @media (max-width:520px){
      .logo{font-size:14px}
      .article-hero h1{font-size:31px}
      .article-meta{display:grid;gap:6px}
      .article-body{padding:25px 18px;border-radius:14px}
      .article-body table{display:block;overflow-x:auto;white-space:nowrap}
      .support-card{padding:23px 20px}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .footer-brand{grid-column:auto}
      .copyright{font-size:11px}
    }

/* roulang page: category1 */
:root{
      --ink:#211d29;--ink-2:#302a3b;--paper:#f7f4ef;--card:#fffdf9;--muted:#756f7f;
      --line:#e6ded5;--coral:#f36f55;--coral-dark:#d95742;--cyan:#62d6c9;--yellow:#f5d66b;
      --purple:#6e587c;--shadow:0 18px 42px rgba(45,32,48,.09);--radius:18px;--max:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    :focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:var(--ink);color:#fff;display:flex;align-items:center;border-bottom:1px solid rgba(255,255,255,.1);position:sticky;top:0;z-index:20}
    .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{display:flex;align-items:center;gap:11px;font-size:16px;font-weight:800;letter-spacing:.2px;white-space:nowrap;line-height:1.22}
    .logo-mark{width:34px;height:34px;border:2px solid var(--cyan);border-radius:9px;position:relative;display:grid;place-items:center;color:var(--yellow);font-size:15px;flex:0 0 auto}
    .logo-mark:after{content:"";width:8px;height:8px;background:var(--coral);border-radius:50%;position:absolute;right:-4px;top:-4px}
    .nav-links{display:flex;align-items:center;gap:24px;font-size:14px;color:#d7d1dc}
    .nav-links a{padding:27px 0;position:relative;transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:#fff}
    .nav-links a.active:after{content:"";position:absolute;bottom:16px;left:0;right:0;height:3px;background:var(--coral);border-radius:4px}
    .nav-download{background:var(--coral);color:#fff!important;padding:9px 15px!important;border-radius:9px}
    .nav-download:after{display:none}
    .nav-download:hover{background:var(--coral-dark)}
    .menu-btn{display:none;background:none;color:#fff;font-size:25px}
    .page-banner{background:var(--ink);color:#fff;padding:48px 0 54px;position:relative;overflow:hidden}
    .page-banner:before{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(98,214,201,.2);border-radius:50%;right:7%;top:-225px}
    .page-banner:after{content:"NOTICE";position:absolute;right:6%;bottom:-58px;color:rgba(255,255,255,.045);font-size:112px;font-weight:900;letter-spacing:-6px}
    .crumbs{display:flex;gap:9px;align-items:center;color:#bcb3c3;font-size:13px;position:relative}
    .crumbs a:hover{color:var(--cyan)}
    .crumbs span{color:#756b7c}
    .banner-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:end;position:relative}
    .section-kicker{color:var(--coral);font-size:13px;font-weight:800;letter-spacing:2px;margin-top:20px}
    .page-banner h1{font-size:clamp(33px,4.6vw,56px);line-height:1.2;letter-spacing:-1.8px;margin:11px 0 14px}
    .page-banner p{color:#cfc7d4;max-width:760px;margin:0;font-size:17px}
    .notice-chip{justify-self:end;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:19px 22px;min-width:245px}
    .notice-chip b{display:block;font-size:14px;color:var(--yellow);letter-spacing:.5px}
    .notice-chip strong{display:block;font-size:27px;line-height:1.1;margin:8px 0}
    .notice-chip span{display:block;color:#c8bfce;font-size:13px}
    main{overflow:hidden}
    .section{padding:76px 0}
    .section.alt{background:#eee9e3}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:28px}
    .section-head h2{font-size:clamp(27px,3vw,40px);line-height:1.25;letter-spacing:-1px;margin:5px 0 0}
    .section-intro{margin:9px 0 0;color:var(--muted);max-width:690px}
    .eyebrow{color:var(--coral-dark);font-weight:800;font-size:13px;letter-spacing:1.7px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border:1px solid transparent;border-radius:10px;font-weight:700;transition:.25s}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{color:#fff;background:var(--coral)}
    .btn-primary:hover{background:var(--coral-dark)}
    .btn-dark{background:var(--ink);color:#fff}
    .btn-dark:hover{background:#3d3448;color:var(--cyan)}
    .btn-outline{border-color:#c8bdc6;color:var(--ink)}
    .btn-outline:hover{border-color:var(--coral);color:var(--coral-dark);background:#fff8f5}
    .notice-summary{display:grid;grid-template-columns:1.1fr 1.9fr;gap:16px}
    .summary-lead{background:var(--purple);color:#fff;border-radius:var(--radius);padding:29px;position:relative;overflow:hidden}
    .summary-lead:after{content:"RP";position:absolute;right:-12px;bottom:-35px;font-size:112px;font-weight:900;color:rgba(255,255,255,.08)}
    .summary-lead h2{position:relative;font-size:25px;line-height:1.32;margin:12px 0}
    .summary-lead p{position:relative;color:#e2dae7;font-size:14px;margin:0}
    .summary-points{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .point{background:var(--card);padding:24px}
    .point-icon{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:#f8e3dc;color:var(--coral-dark);font-size:19px}
    .point:nth-child(2) .point-icon{background:#dff4ef;color:#277b70}
    .point:nth-child(3) .point-icon{background:#f9edc7;color:#896b10}
    .point h3{font-size:17px;margin:16px 0 7px}
    .point p{font-size:14px;color:var(--muted);margin:0}
    .filter-bar{display:flex;gap:12px;align-items:center;justify-content:space-between;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:13px 15px;margin-bottom:15px}
    .filter-tabs{display:flex;gap:8px;flex-wrap:wrap}
    .filter-tab{border:1px solid var(--line);background:#fff;border-radius:99px;padding:7px 13px;color:#675e6d;font-size:13px;font-weight:700;transition:.2s}
    .filter-tab:hover,.filter-tab.active{background:var(--ink);color:#fff;border-color:var(--ink)}
    .sort-note{font-size:13px;color:var(--muted)}
    .notice-list{display:grid;gap:12px}
    .notice-item{display:grid;grid-template-columns:112px minmax(0,1fr) auto;gap:22px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:15px;padding:20px 22px;box-shadow:0 5px 16px rgba(45,32,48,.025);transition:.25s}
    .notice-item:hover{border-color:#dca895;transform:translateX(4px);box-shadow:var(--shadow)}
    .date-block{border-right:1px solid var(--line);padding-right:18px}
    .date-block strong{display:block;font-size:23px;line-height:1;color:var(--coral-dark)}
    .date-block span{font-size:12px;color:var(--muted)}
    .notice-copy h3{font-size:18px;line-height:1.45;margin:0 0 5px}
    .notice-copy p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
    .notice-side{text-align:right;min-width:105px}
    .badge{display:inline-flex;align-items:center;border-radius:99px;padding:4px 9px;font-size:12px;font-weight:700;background:#f8e3dc;color:#a04432}
    .badge.update{background:#ddf3ed;color:#27796d}
    .badge.service{background:#f7ecc8;color:#8b6b12}
    .notice-side time{display:block;font-size:12px;color:var(--muted);margin-top:8px}
    .empty-state{padding:40px 20px;text-align:center;border:1px dashed #cfc4bb;border-radius:14px;background:var(--card);color:var(--muted)}
    .list-footer{margin-top:24px;text-align:center}
    .important-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
    .important-card{background:var(--ink);color:#fff;border-radius:var(--radius);padding:31px;position:relative;overflow:hidden}
    .important-card:before{content:"";position:absolute;inset:auto -85px -115px auto;width:270px;height:270px;border:32px solid rgba(98,214,201,.13);border-radius:50%}
    .important-card h2{font-size:29px;line-height:1.3;max-width:580px;margin:12px 0}
    .important-card p{max-width:590px;color:#c9c0cf;margin:0}
    .important-card .tagline{position:relative;display:inline-flex;margin-top:20px;padding:5px 11px;border-radius:99px;background:rgba(255,255,255,.12);font-size:13px;color:var(--cyan)}
    .version-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:27px}
    .version-panel h3{font-size:20px;margin:0 0 15px}
    .version-row{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
    .version-row:last-child{border-bottom:0}
    .version-row span{color:var(--muted)}
    .version-row b{font-weight:800;text-align:right}
    .timeline{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .timeline:before{content:"";position:absolute;top:29px;left:8%;right:8%;height:1px;background:#d5c9c1}
    .time-step{position:relative;background:transparent;padding-top:0}
    .time-no{display:grid;place-items:center;width:58px;height:58px;border-radius:50%;background:var(--card);border:1px solid var(--line);color:var(--coral-dark);font-weight:900;font-size:18px;position:relative;z-index:1}
    .time-step h3{font-size:18px;margin:16px 0 7px}
    .time-step p{margin:0;color:var(--muted);font-size:14px}
    .guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .guide-card{display:flex;gap:17px;background:var(--card);border:1px solid var(--line);border-radius:15px;padding:23px;transition:.25s}
    .guide-card:hover{box-shadow:var(--shadow);border-color:#dbc1b3}
    .guide-symbol{width:42px;height:42px;display:grid;place-items:center;flex:0 0 auto;border-radius:12px;background:#eee8df;color:var(--purple);font-size:19px}
    .guide-card h3{font-size:18px;margin:0 0 5px}
    .guide-card p{font-size:14px;color:var(--muted);margin:0}
    .faq-wrap{max-width:890px;margin:auto}
    .faq-item{background:var(--card);border:1px solid var(--line);border-radius:13px;margin-bottom:10px;overflow:hidden}
    .faq-item summary{list-style:none;cursor:pointer;padding:18px 52px 18px 20px;font-weight:800;position:relative}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:20px;top:13px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#f1eae3;color:var(--coral-dark);font-size:20px;font-weight:400;transition:.2s}
    .faq-item[open] summary:after{content:"−";background:var(--coral);color:#fff}
    .faq-answer{padding:0 20px 19px;color:var(--muted);font-size:14px}
    .closing{padding:0 0 82px}
    .closing-inner{background:var(--coral);border-radius:var(--radius);padding:34px 40px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .closing h2{font-size:28px;margin:0 0 6px}
    .closing p{margin:0;color:#fff0eb}
    .closing .btn{background:#fff;color:var(--coral-dark);white-space:nowrap}
    .closing .btn:hover{background:var(--yellow);color:var(--ink)}
    .site-footer{background:var(--ink);color:#fff;padding:59px 0 23px}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px}
    .footer-brand p{color:#bdb4c3;font-size:14px;max-width:260px;margin:17px 0 0}
    .footer-col{display:grid;align-content:start;gap:8px}
    .footer-col h3{font-size:15px;color:var(--yellow);margin:3px 0 9px}
    .footer-col a{font-size:14px;color:#c9c1cc;transition:.2s}
    .footer-col a:hover{color:var(--cyan);padding-left:3px}
    .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:19px;display:flex;justify-content:space-between;gap:20px;color:#a89fac;font-size:12px}
    @media (max-width:1024px){
      .nav-links{gap:15px}
      .notice-summary,.important-grid{grid-template-columns:1fr}
      .summary-points{grid-template-columns:repeat(3,1fr)}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
      .footer-col:last-child{grid-column:2}
    }
    @media (max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .site-header{height:68px}
      .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:10px 24px 22px;border-top:1px solid rgba(255,255,255,.1);box-shadow:0 18px 30px rgba(0,0,0,.2)}
      .nav-links.open{display:flex;flex-direction:column;align-items:stretch;gap:0}
      .nav-links a{padding:13px 0}
      .nav-links a.active:after{bottom:7px}
      .nav-download{text-align:center;margin:8px 0!important;padding:10px 14px!important}
      .menu-btn{display:block}
      .page-banner{padding:33px 0 38px}
      .banner-grid{grid-template-columns:1fr;gap:20px}
      .notice-chip{justify-self:start;width:100%}
      .page-banner:after{font-size:76px;right:-18px}
      .section{padding:58px 0}
      .section-head{display:block;margin-bottom:23px}
      .section-head .btn{margin-top:16px}
      .summary-points{grid-template-columns:1fr}
      .filter-bar{align-items:flex-start;flex-direction:column}
      .notice-item{grid-template-columns:76px minmax(0,1fr);gap:14px;padding:17px}
      .date-block{padding-right:12px}
      .notice-side{grid-column:2;text-align:left;display:flex;align-items:center;gap:10px;min-width:0}
      .notice-side time{margin:0}
      .timeline{grid-template-columns:1fr;gap:24px}
      .timeline:before{top:28px;bottom:28px;left:28px;right:auto;width:1px;height:auto}
      .guide-grid{grid-template-columns:1fr}
      .closing-inner{display:block;padding:29px}
      .closing .btn{margin-top:18px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .footer-col:last-child{grid-column:auto}
      .copyright{display:block}
      .copyright span{display:block;margin-bottom:8px}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .logo{font-size:14px}
      .logo-mark{width:32px;height:32px}
      .page-banner h1{font-size:32px}
      .page-banner p{font-size:15px}
      .notice-copy h3{font-size:16px}
      .notice-item{grid-template-columns:1fr}
      .date-block{border-right:0;border-bottom:1px solid var(--line);padding:0 0 10px;display:flex;align-items:center;gap:10px}
      .date-block strong{font-size:19px}
      .notice-side{grid-column:auto}
      .important-card,.version-panel{padding:24px}
      .important-card h2{font-size:25px}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
    }

/* roulang page: category3 */
:root{
      --ink:#211d29;--ink-2:#302a3b;--paper:#f7f4ef;--card:#fffdf9;--muted:#756f7f;
      --line:#e6ded5;--coral:#f36f55;--coral-dark:#d95742;--cyan:#62d6c9;
      --yellow:#f5d66b;--purple:#6e587c;--shadow:0 18px 42px rgba(45,32,48,.09);
      --radius:18px;--max:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    :focus-visible{outline:3px solid var(--yellow);outline-offset:3px}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:var(--ink);color:#fff;display:flex;align-items:center;border-bottom:1px solid rgba(255,255,255,.1);position:sticky;top:0;z-index:20}
    .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{display:flex;align-items:center;gap:11px;font-size:16px;font-weight:800;line-height:1.25;letter-spacing:.2px;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border:2px solid var(--cyan);border-radius:9px;position:relative;display:grid;place-items:center;color:var(--yellow);font-size:15px}
    .logo-mark:after{content:"";width:8px;height:8px;background:var(--coral);border-radius:50%;position:absolute;right:-4px;top:-4px}
    .nav-links{display:flex;align-items:center;gap:24px;font-size:14px;color:#d7d1dc}
    .nav-links a{padding:27px 0;position:relative;transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:#fff}
    .nav-links a.active:after{content:"";position:absolute;bottom:16px;left:0;right:0;height:3px;background:var(--coral);border-radius:4px}
    .nav-download{background:var(--coral);color:#fff!important;padding:9px 15px!important;border-radius:9px}
    .nav-download:hover{background:var(--coral-dark)}
    .menu-btn{display:none;background:none;color:#fff;font-size:25px}
    .page-intro{background:var(--ink);color:#fff;padding:55px 0 62px;position:relative;overflow:hidden}
    .page-intro:after{content:"GUIDE";position:absolute;right:-24px;bottom:-48px;font-size:150px;line-height:1;font-weight:900;color:rgba(98,214,201,.08);letter-spacing:-8px}
    .crumbs{display:flex;gap:9px;align-items:center;color:#bdb4c5;font-size:13px;margin-bottom:28px;position:relative;z-index:1}
    .crumbs a:hover{color:var(--cyan)}
    .crumbs span{color:var(--coral)}
    .intro-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:end;position:relative;z-index:1}
    .eyebrow,.section-kicker{color:var(--coral);font-size:13px;font-weight:800;letter-spacing:2px}
    .page-intro h1{font-size:clamp(34px,5vw,61px);line-height:1.17;letter-spacing:-2px;margin:15px 0 18px;max-width:760px}
    .page-intro h1 em{font-style:normal;color:var(--cyan)}
    .page-intro p{color:#c9c2d0;max-width:700px;font-size:17px;margin:0}
    .guide-summary{background:#40364a;border:1px solid rgba(255,255,255,.13);border-radius:16px;padding:24px}
    .guide-summary strong{display:block;color:var(--yellow);font-size:14px;margin-bottom:12px}
    .guide-summary ul{padding:0;margin:0;list-style:none;display:grid;gap:9px;color:#eee8f0;font-size:14px}
    .guide-summary li:before{content:"↗";color:var(--cyan);margin-right:8px}
    .section{padding:80px 0}
    .section.alt{background:#eee9e3}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;letter-spacing:-1px;margin:8px 0 0}
    .section-intro{max-width:640px;color:var(--muted);margin:12px 0 0}
    .tag-row{display:flex;gap:8px;flex-wrap:wrap}
    .tag{display:inline-flex;padding:4px 10px;border-radius:99px;background:#eee8df;color:#655d6d;font-size:12px}
    .tag.coral{background:#fde3dc;color:#b44938}
    .tag.cyan{background:#d9f5f0;color:#287c76}
    .path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .path-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:25px;min-height:215px;position:relative;transition:.25s}
    .path-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d6b8aa}
    .path-number{width:36px;height:36px;border-radius:10px;background:var(--ink);color:var(--yellow);display:grid;place-items:center;font-weight:800}
    .path-card h3{font-size:19px;margin:20px 0 8px}
    .path-card p{font-size:14px;color:var(--muted);margin:0}
    .path-card a,.guide-link{display:inline-block;margin-top:17px;color:var(--coral-dark);font-weight:700;font-size:13px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .feature-panel{background:var(--purple);color:#fff;border-radius:var(--radius);padding:32px;min-height:275px;position:relative;overflow:hidden}
    .feature-panel:after{content:"RP";position:absolute;right:18px;bottom:-28px;font-size:130px;font-weight:900;color:rgba(255,255,255,.08)}
    .feature-panel h3{font-size:28px;line-height:1.3;max-width:410px;margin:16px 0 12px}
    .feature-panel p{color:#e5dce8;max-width:470px;font-size:15px}
    .feature-panel .tag{background:rgba(255,255,255,.14);color:#fff}
    .note-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
    .note-panel h3{margin:0 0 13px;font-size:23px}
    .note-panel p{color:var(--muted);font-size:15px}
    .check-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:12px}
    .check-list li{display:flex;gap:10px;color:var(--ink-2);font-size:14px}
    .check-list li:before{content:"✓";width:21px;height:21px;flex:0 0 21px;border-radius:50%;display:grid;place-items:center;background:#d9f5f0;color:#287c76;font-weight:800;font-size:12px}
    .guide-table{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}
    .guide-row{display:grid;grid-template-columns:150px 1fr 150px;gap:22px;align-items:center;padding:19px 24px;border-bottom:1px solid var(--line)}
    .guide-row:last-child{border-bottom:0}
    .guide-row strong{font-size:16px}
    .guide-row p{margin:0;color:var(--muted);font-size:14px}
    .guide-row .status{justify-self:end;color:var(--purple);font-size:13px;font-weight:700}
    .help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .help-card{background:var(--card);border:1px solid var(--line);padding:23px;border-radius:14px;transition:.25s}
    .help-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
    .help-card h3{font-size:18px;margin:0 0 9px}
    .help-card p{font-size:14px;color:var(--muted);margin:0}
    .help-card a{display:inline-block;margin-top:15px;color:var(--coral-dark);font-size:13px;font-weight:700}
    .security-band{background:var(--ink);border-radius:var(--radius);padding:32px;color:#fff;display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center}
    .security-band h2{font-size:29px;line-height:1.3;margin:8px 0 12px}
    .security-band p{color:#c9c2d0;margin:0;font-size:15px}
    .security-points{display:grid;gap:12px}
    .security-point{display:flex;gap:13px;align-items:flex-start;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.12)}
    .security-point:last-child{border-bottom:0}
    .security-point b{color:var(--cyan);font-size:13px;min-width:74px}
    .security-point span{color:#e5dee8;font-size:14px}
    .faq-list{display:grid;gap:10px;max-width:900px}
    .faq-item{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:0 20px}
    .faq-item summary{cursor:pointer;list-style:none;padding:18px 30px 18px 0;font-weight:700;position:relative}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:2px;top:14px;color:var(--coral);font-size:24px;font-weight:400}
    .faq-item[open] summary:after{content:"−"}
    .faq-item p{border-top:1px solid var(--line);padding:14px 0 17px;margin:0;color:var(--muted);font-size:14px}
    .cta{background:var(--coral);color:#fff;padding:43px 0}
    .cta-wrap{display:flex;justify-content:space-between;gap:30px;align-items:center}
    .cta h2{font-size:30px;margin:0 0 8px;line-height:1.3}
    .cta p{margin:0;color:#ffeae5;font-size:15px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:10px;font-weight:700;transition:.25s;border:1px solid transparent}
    .btn:hover{transform:translateY(-2px)}
    .btn-light{background:#fff;color:var(--coral-dark)}
    .btn-light:hover{background:#fff4ef}
    .btn-outline{border-color:#756779;color:#fff}
    .btn-outline:hover{border-color:var(--cyan);color:var(--cyan)}
    .site-footer{background:var(--ink-2);color:#d8d0dc;padding:57px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:35px;padding-bottom:42px}
    .footer-brand p{color:#a9a0b0;font-size:14px;max-width:250px;margin-top:18px}
    .footer-col{display:flex;flex-direction:column;gap:9px;font-size:14px}
    .footer-col h3{color:#fff;font-size:15px;margin:0 0 8px}
    .footer-col a{color:#bcb3c3;transition:.2s}
    .footer-col a:hover{color:var(--cyan)}
    .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#978e9e;font-size:12px}
    @media(max-width:1024px){
      .nav-links{gap:14px}
      .intro-grid{gap:35px}
      .path-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1.3fr repeat(3,1fr);gap:22px}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .site-header{height:68px}
      .nav-wrap{position:relative}
      .menu-btn{display:block}
      .nav-links{display:none;position:absolute;top:54px;left:-16px;right:-16px;background:var(--ink);padding:10px 22px 20px;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid rgba(255,255,255,.12);box-shadow:0 18px 25px rgba(0,0,0,.2)}
      .nav-links.open{display:flex}
      .nav-links a{padding:13px 0}
      .nav-links a.active:after{bottom:7px;right:auto;width:35px}
      .nav-download{margin-top:7px;text-align:center}
      .page-intro{padding:38px 0 45px}
      .intro-grid,.split,.security-band{grid-template-columns:1fr}
      .page-intro h1{letter-spacing:-1px}
      .section{padding:60px 0}
      .section-head{display:block}
      .path-grid,.help-grid{grid-template-columns:1fr 1fr}
      .guide-row{grid-template-columns:110px 1fr;gap:13px}
      .guide-row .status{grid-column:2;justify-self:start}
      .cta-wrap{display:block}
      .cta .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .copyright{display:block}
      .copyright span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      .logo{font-size:14px}
      .logo-mark{width:31px;height:31px}
      .page-intro h1{font-size:35px}
      .path-grid,.help-grid{grid-template-columns:1fr}
      .guide-row{display:block}
      .guide-row strong,.guide-row p,.guide-row .status{display:block;margin-bottom:6px}
      .guide-row .status{margin-bottom:0}
      .feature-panel,.note-panel,.security-band{padding:24px}
      .security-band h2{font-size:25px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px 16px}
    }

/* roulang page: category2 */
:root{
      --ink:#211d29;--ink-2:#302a3b;--paper:#f7f4ef;--card:#fffdf9;--muted:#756f7f;
      --line:#e6ded5;--coral:#f36f55;--coral-dark:#d95742;--cyan:#62d6c9;--yellow:#f5d66b;
      --purple:#6e587c;--shadow:0 18px 42px rgba(45,32,48,.09);--radius:18px;--max:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:var(--ink);color:#fff;display:flex;align-items:center;border-bottom:1px solid rgba(255,255,255,.1);position:sticky;top:0;z-index:20}
    .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{display:flex;align-items:center;gap:11px;font-size:16px;font-weight:800;letter-spacing:.2px;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border:2px solid var(--cyan);border-radius:9px;position:relative;display:grid;place-items:center;color:var(--yellow);font-size:15px}
    .logo-mark:after{content:"";width:8px;height:8px;background:var(--coral);border-radius:50%;position:absolute;right:-4px;top:-4px}
    .nav-links{display:flex;align-items:center;gap:24px;font-size:14px;color:#d7d1dc}
    .nav-links a{padding:27px 0;position:relative;transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:#fff}
    .nav-links a.active:after{content:"";position:absolute;bottom:16px;left:0;right:0;height:3px;background:var(--coral);border-radius:4px}
    .nav-download{background:var(--coral);color:#fff!important;padding:9px 15px!important;border-radius:9px}
    .nav-download:hover{background:var(--coral-dark)}
    .menu-btn{display:none;background:none;color:#fff;font-size:25px}
    .page-intro{background:var(--ink);color:#fff;padding:68px 0 62px;position:relative;overflow:hidden}
    .page-intro:after{content:"APP";position:absolute;right:5%;bottom:-42px;color:rgba(98,214,201,.1);font-size:150px;font-weight:900;letter-spacing:-8px}
    .crumb{color:#bdb3c5;font-size:13px;margin-bottom:22px}
    .crumb a{color:var(--cyan)}
    .eyebrow,.section-kicker{color:var(--coral);font-size:13px;font-weight:800;letter-spacing:2px}
    .page-intro h1{font-size:clamp(34px,5vw,60px);line-height:1.2;letter-spacing:-2px;margin:14px 0 18px;max-width:800px;position:relative;z-index:1}
    .page-intro p{max-width:760px;color:#cec6d4;font-size:17px;position:relative;z-index:1}
    .section{padding:76px 0}
    .section.alt{background:#eee9e3}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;letter-spacing:-1px;margin:0}
    .section-intro{max-width:680px;color:var(--muted);margin:10px 0 0}
    .tag-row{display:flex;gap:8px;flex-wrap:wrap}
    .tag{display:inline-flex;padding:4px 10px;border-radius:99px;background:#eee8df;color:#655d6d;font-size:12px}
    .tag.coral{background:#fae1da;color:var(--coral-dark)}
    .download-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:stretch}
    .download-card{background:var(--ink-2);color:#fff;border-radius:var(--radius);padding:34px;position:relative;overflow:hidden}
    .download-card:before{content:"";position:absolute;width:230px;height:230px;border:1px solid rgba(98,214,201,.35);border-radius:50%;right:-70px;top:-70px}
    .download-card h3{font-size:30px;line-height:1.3;margin:17px 0 10px;position:relative}
    .download-card p{color:#d4cbd8;max-width:570px;position:relative}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:10px;font-weight:700;transition:.25s;border:1px solid transparent}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:var(--coral);color:#fff}
    .btn-primary:hover{background:var(--coral-dark)}
    .btn-outline{border-color:#675d6e;color:#fff}
    .btn-outline:hover{border-color:var(--cyan);color:var(--cyan)}
    .download-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px;position:relative}
    .device-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
    .device-tabs{display:flex;border-bottom:1px solid var(--line);gap:8px;margin-bottom:23px}
    .device-tabs button{background:none;color:var(--muted);padding:9px 13px;border-bottom:3px solid transparent}
    .device-tabs button.active,.device-tabs button:hover{color:var(--coral-dark);border-color:var(--coral)}
    .device-info{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .info-box{background:#f2eee8;border-radius:12px;padding:16px}
    .info-box small{display:block;color:var(--muted);font-size:12px}
    .info-box strong{display:block;font-size:17px;margin-top:4px}
    .version-bar{display:flex;justify-content:space-between;align-items:center;gap:15px;background:var(--yellow);padding:17px 20px;border-radius:12px;margin-top:18px}
    .version-bar small{color:#554d39}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .feature-card{background:var(--card);border:1px solid var(--line);border-radius:15px;padding:25px;transition:.25s}
    .feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d2b9aa}
    .feature-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#d9f4ef;color:#387e78;font-weight:900}
    .feature-card h3{font-size:19px;margin:19px 0 8px}
    .feature-card p{color:var(--muted);font-size:14px;margin:0}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);background:var(--card);border-radius:16px;overflow:hidden}
    .step{padding:25px;border-right:1px solid var(--line);min-height:190px}
    .step:last-child{border:0}
    .step-num{color:var(--coral);font-size:14px;font-weight:900;letter-spacing:1px}
    .step h3{font-size:18px;margin:24px 0 8px}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .notice{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .notice-panel{padding:29px;border-radius:16px;background:var(--purple);color:#fff}
    .notice-panel.light{background:var(--card);color:var(--ink);border:1px solid var(--line)}
    .notice-panel h3{font-size:23px;margin:0 0 12px}
    .notice-panel p{font-size:14px;color:#e7dfe9}
    .notice-panel.light p{color:var(--muted)}
    .check-list{padding:0;margin:18px 0 0;list-style:none}
    .check-list li{padding:10px 0 10px 25px;border-top:1px solid rgba(255,255,255,.15);position:relative;font-size:14px}
    .notice-panel.light .check-list li{border-color:var(--line)}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:900}
    .news-list{display:grid;gap:10px}
    .news-item{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:16px 19px;display:flex;justify-content:space-between;gap:20px;align-items:center;transition:.25s}
    .news-item:hover{border-color:var(--coral);transform:translateX(3px)}
    .news-item h3{font-size:16px;line-height:1.5;margin:6px 0 0}
    .news-item p{font-size:13px;color:var(--muted);margin:3px 0 0}
    .news-meta{white-space:nowrap;color:var(--muted);font-size:12px}
    .empty-state{padding:28px;background:var(--card);border:1px dashed #cfc3b9;border-radius:14px;color:var(--muted)}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .faq-item{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:0 20px}
    .faq-item summary{cursor:pointer;padding:18px 0;font-weight:700;list-style:none}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";float:right;color:var(--coral)}
    .faq-item[open] summary:after{content:"－"}
    .faq-item p{color:var(--muted);font-size:14px;padding:0 0 18px;margin:0}
    .cta{background:var(--coral);color:#fff;padding:42px;border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{font-size:30px;margin:0 0 8px}
    .cta p{margin:0;color:#ffe6df}
    .cta .btn{background:#fff;color:var(--coral-dark)}
    .site-footer{background:var(--ink);color:#fff;padding:58px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:35px}
    .footer-brand p{color:#aaa1b0;font-size:14px;margin-top:18px}
    .footer-col{display:flex;flex-direction:column;gap:9px}
    .footer-col h3{font-size:15px;color:var(--yellow);margin:0 0 8px}
    .footer-col a{color:#bcb4c1;font-size:14px;transition:.2s}
    .footer-col a:hover{color:var(--cyan)}
    .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#958c9b;font-size:12px}
    @media(max-width:1024px){
      .nav-links{gap:13px}.download-layout{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}.footer-grid{grid-template-columns:1.3fr repeat(3,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .site-header{height:68px}.menu-btn{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:12px 20px 22px;flex-direction:column;align-items:stretch;gap:0;box-shadow:0 15px 24px rgba(0,0,0,.2)}
      .nav-links.open{display:flex}.nav-links a{padding:13px 0;border-bottom:1px solid rgba(255,255,255,.08)}.nav-links a.active:after{bottom:7px;left:auto;width:32px}
      .nav-download{margin-top:10px;text-align:center}.page-intro{padding:48px 0}.section{padding:58px 0}.section-head{display:block}.feature-grid,.notice,.faq-grid{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)!important}.step:last-child{border-bottom:0!important}.news-item{display:block}.news-meta{display:block;margin-top:9px}.cta{display:block;padding:30px}.cta .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}
    }
    @media(max-width:520px){
      .logo{font-size:13px}.page-intro h1{font-size:36px}.download-card,.device-panel{padding:23px}.device-info{grid-template-columns:1fr}.version-bar{display:block}.version-bar .tag{margin-top:8px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
    }