/* roulang page: index */
:root{
      --paper:#F3F0E8;
      --oat:#E5DDCE;
      --ink:#202720;
      --moss:#8FA46B;
      --peach:#E99A6A;
      --muted:#697066;
      --line:rgba(32,39,32,.18);
      --soft-line:rgba(32,39,32,.10);
      --shadow:0 12px 30px rgba(32,39,32,.08);
      --radius:16px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      line-height:1.8;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.28;
      background-image:radial-gradient(rgba(32,39,32,.11) .45px,transparent .55px);
      background-size:7px 7px;
      mix-blend-mode:multiply;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    ::selection{background:var(--moss);color:#fff}
    .site-shell{max-width:1180px;margin:0 auto;padding:0 26px}
    .serif{font-family:Georgia,"Songti SC","STSong",serif}
    .topbar{
      position:sticky;top:0;z-index:50;
      background:rgba(243,240,232,.94);
      backdrop-filter:blur(12px);
      border-bottom:1px solid var(--line);
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:72px;
      font-size:13px;
      letter-spacing:.08em;
      color:#5b6359;
      transition:color .2s ease;
    }
    .nav-link:hover,.nav-link.active{color:var(--ink)}
    .nav-link.active:after{
      content:"";
      position:absolute;
      left:0;right:0;bottom:13px;
      height:3px;border-radius:999px;
      background:var(--moss);
    }
    .brand-mark{
      display:grid;
      width:28px;height:28px;
      place-items:center;
      border:1px solid var(--moss);
      color:var(--moss);
      font-size:11px;
      font-weight:800;
      border-radius:50%;
      flex:none;
    }
    .btn-main,.btn-line{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:45px;padding:0 18px;border-radius:9px;
      font-size:14px;font-weight:700;letter-spacing:.03em;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
    }
    .btn-main{background:var(--ink);border:1px solid var(--ink);color:#f8f5ec}
    .btn-main:hover{transform:translateY(-2px);background:#303b30;border-color:var(--moss);box-shadow:0 10px 20px rgba(32,39,32,.2)}
    .btn-line{background:transparent;border:1px solid var(--line);color:var(--ink)}
    .btn-line:hover{transform:translateY(-2px);border-color:var(--moss);background:#ece7dc;box-shadow:var(--shadow)}
    .btn-main:focus-visible,.btn-line:focus-visible,.nav-link:focus-visible,.list-card:focus-visible,summary:focus-visible,input:focus-visible{
      outline:3px solid rgba(143,164,107,.55);outline-offset:3px;
    }
    .hero-wrap{
      position:relative;
      overflow:hidden;
      margin-top:22px;
      border-radius:0 0 28px 28px;
      background:var(--ink);
      color:#f8f5ec;
      min-height:620px;
    }
    .hero-wrap:before{
      content:"";
      position:absolute;right:-90px;top:-130px;width:420px;height:420px;border-radius:50%;
      background:radial-gradient(circle,rgba(233,154,106,.9) 0 12%,transparent 12.5% 100%);
      opacity:.9;
    }
    .hero-wrap:after{
      content:"";
      position:absolute;inset:0;pointer-events:none;opacity:.18;
      background-image:radial-gradient(#e5ddce .75px,transparent .9px);
      background-size:8px 8px;
      mask-image:linear-gradient(120deg,transparent 10%,#000 45%,transparent 85%);
    }
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);gap:52px;padding:82px 64px 60px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:9px;
      color:#cdd7bb;font-size:12px;font-weight:700;letter-spacing:.15em;
    }
    .eyebrow:before{content:"";width:28px;height:1px;background:var(--moss)}
    .hero-title{
      max-width:760px;margin:24px 0 22px;
      font-size:clamp(40px,5.1vw,70px);
      line-height:1.16;letter-spacing:-.055em;font-weight:800;
    }
    .hero-copy{max-width:670px;font-size:16px;line-height:1.95;color:#d5d7d0}
    .mini-rule{height:1px;background:rgba(229,221,206,.25);margin:29px 0 20px}
    .age-note{
      display:flex;gap:10px;align-items:flex-start;
      max-width:650px;padding:12px 14px;
      border:1px solid rgba(229,221,206,.28);
      background:rgba(229,221,206,.08);
      color:#d9d8d0;font-size:12px;line-height:1.7;
    }
    .age-dot{width:8px;height:8px;margin-top:7px;border-radius:50%;background:var(--peach);flex:none}
    .guide-panel{
      align-self:end;background:#e9e3d7;color:var(--ink);
      padding:24px;border-radius:16px 16px 0 0;
      box-shadow:0 18px 35px rgba(0,0,0,.16);
    }
    .guide-item{display:grid;grid-template-columns:37px 1fr;gap:12px;padding:17px 0;border-top:1px solid var(--line)}
    .guide-item:first-of-type{border-top:0}
    .guide-num{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--peach)}
    .guide-item h3{margin:0 0 4px;font-size:16px;line-height:1.35;font-weight:800}
    .guide-item p{margin:0;color:#687065;font-size:13px;line-height:1.65}
    .section{padding:104px 0;border-bottom:1px solid var(--soft-line)}
    .section-intro{max-width:760px}
    .section-kicker{font-size:12px;color:#6d7d52;letter-spacing:.14em;font-weight:800}
    .section-title{margin:14px 0 15px;font-size:clamp(30px,4vw,50px);line-height:1.23;letter-spacing:-.04em;font-weight:800}
    .section-copy{margin:0;color:#5e665d;font-size:16px;line-height:1.9}
    .solution-grid{display:grid;grid-template-columns:250px 1fr;gap:56px;margin-top:46px}
    .vertical-index{border-left:1px solid var(--line);padding:3px 0 3px 22px}
    .vertical-index p{margin:0 0 15px;color:#677063;font-size:14px}
    .vertical-index strong{display:block;margin-bottom:16px;font-size:23px;line-height:1.35}
    .list-card{
      display:grid;grid-template-columns:74px 1fr auto;gap:22px;align-items:center;
      margin-bottom:14px;padding:24px 25px;border:1px solid var(--line);
      background:#ebe5d9;border-radius:14px;
      transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    }
    .list-card:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:var(--moss)}
    .list-card.featured{background:var(--ink);color:#f4f0e7;border-color:var(--ink)}
    .entry-no{font-size:29px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:800;color:var(--peach)}
    .entry-tag,.badge{
      display:inline-flex;align-items:center;border-radius:999px;padding:3px 9px;
      font-size:11px;line-height:1.55;letter-spacing:.05em;font-weight:700;
      background:rgba(143,164,107,.18);color:#54643d;
    }
    .featured .entry-tag{background:rgba(143,164,107,.25);color:#dbe6ca}
    .list-card h3{margin:8px 0 5px;font-size:20px;line-height:1.35;font-weight:800}
    .list-card p{margin:0;color:#687065;font-size:14px;line-height:1.7}
    .featured p{color:#c8cdc4}
    .entry-meta{font-size:12px;white-space:nowrap;color:#7b8379}
    .featured .entry-meta{color:#cbd1c4}
    .arrow{font-size:25px;color:var(--peach);transition:transform .2s ease}
    .list-card:hover .arrow{transform:translateX(5px)}
    .static-filter{
      display:flex;align-items:center;gap:8px;flex-wrap:wrap;
      margin-top:25px;padding:12px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    }
    .filter-label{font-size:12px;color:#6a7367;margin-right:6px}
    .chip{border:1px solid var(--line);padding:4px 10px;border-radius:999px;font-size:12px;background:#eee9de}
    .chip.active{border-color:var(--moss);background:#dce3cf;color:#33412d}
    .result-band{background:var(--ink);color:#f7f2e8;border-bottom:0}
    .result-band .section-copy{color:#c8cec3}
    .results-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:45px;border-top:1px solid rgba(229,221,206,.25);border-bottom:1px solid rgba(229,221,206,.25)}
    .result{padding:25px 23px 30px;border-left:1px solid rgba(229,221,206,.22)}
    .result:first-child{border-left:0}
    .result-number{font-size:47px;line-height:1;font-weight:800;color:var(--peach);letter-spacing:-.06em}
    .result h3{margin:13px 0 5px;font-size:15px}
    .result p{margin:0;color:#bec6b9;font-size:13px;line-height:1.7}
    .index-slip{margin-top:40px;padding:19px 22px;background:#e6dfd3;color:var(--ink);border-radius:10px;max-width:690px}
    .slip-head{display:flex;justify-content:space-between;padding-bottom:9px;border-bottom:1px solid var(--line);font-size:12px;letter-spacing:.08em}
    .slip-row{display:grid;grid-template-columns:44px 1fr auto;gap:12px;padding:10px 0;border-bottom:1px dashed rgba(32,39,32,.16);font-size:13px}
    .slip-row:last-child{border-bottom:0}
    .feedback-layout{display:grid;grid-template-columns:1.15fr .85fr 250px;gap:24px;margin-top:45px;align-items:start}
    .quote-card{padding:29px;background:#e8e1d4;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
    .quote-card.offset{margin-top:48px;background:#f8f5ec}
    .quote-symbol{font:42px/1 Georgia,serif;color:var(--peach)}
    .quote-card blockquote{margin:10px 0 22px;font-size:18px;line-height:1.8;font-weight:700}
    .quote-meta{font-size:12px;color:#6d756a}
    .side-note{padding:24px 0;border-top:2px solid var(--moss);border-bottom:1px solid var(--line)}
    .side-note h3{margin:0 0 12px;font-size:18px}
    .side-note p{margin:0;color:#697066;font-size:14px;line-height:1.8}
    .news-layout{display:grid;grid-template-columns:1fr 330px;gap:54px;margin-top:42px}
    .news-item{display:grid;grid-template-columns:90px 1fr auto;gap:18px;align-items:center;padding:18px 0;border-top:1px solid var(--line)}
    .news-date{font-family:ui-monospace,monospace;font-size:12px;color:#7c8865}
    .news-item h3{margin:0;font-size:18px;line-height:1.5}
    .news-item p{margin:4px 0 0;font-size:13px;color:#687065;line-height:1.65}
    .news-item:hover h3{color:#596f3d}
    .news-aside{padding:25px;background:#ded6c7;border-radius:15px}
    .news-aside h3{margin:9px 0;font-size:22px;line-height:1.4}
    .news-aside p{font-size:14px;color:#5d655c;line-height:1.8}
    .faq-wrap{max-width:830px;margin:44px auto 0}
    details{border-top:1px solid var(--line)}
    details:last-child{border-bottom:1px solid var(--line)}
    summary{position:relative;list-style:none;padding:20px 40px 20px 0;font-size:17px;font-weight:750;cursor:pointer}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:3px;top:16px;font-size:25px;font-weight:400;color:var(--moss)}
    details[open] summary:after{content:"−"}
    .faq-answer{padding:0 32px 20px 0;color:#60685f;font-size:15px;line-height:1.9}
    .cta-panel{
      position:relative;overflow:hidden;display:grid;grid-template-columns:1fr 410px;gap:45px;align-items:center;
      padding:48px 52px;background:var(--ink);color:#f7f2e7;border-radius:24px;
    }
    .cta-panel:after{content:"";position:absolute;right:-70px;bottom:-100px;width:300px;height:300px;border:1px solid rgba(143,164,107,.5);border-radius:50%}
    .cta-panel>*{position:relative;z-index:1}
    .cta-panel h2{margin:0 0 13px;font-size:clamp(28px,3.5vw,43px);line-height:1.3;letter-spacing:-.04em}
    .cta-panel p{margin:0;color:#c6cdc1;font-size:15px}
    .form-row{display:flex;gap:10px}
    .form-row input{min-width:0;flex:1;padding:0 14px;height:47px;border:1px solid rgba(229,221,206,.35);background:#f0ebe1;color:var(--ink);border-radius:8px}
    .form-row button{border:1px solid var(--moss);background:var(--moss);color:#182116;padding:0 16px;border-radius:8px;font-weight:800;transition:.2s}
    .form-row button:hover{background:#a7bb83;transform:translateY(-2px)}
    .form-tip{margin-top:11px;font-size:12px;color:#b8c0b2}
    .footer{margin-top:104px;background:var(--ink);color:#e7e0d4;padding:56px 0 28px}
    .footer-grid{display:grid;grid-template-columns:1.35fr .75fr 1fr;gap:42px}
    .footer-logo{font-size:18px;font-weight:800;line-height:1.45}
    .footer p{margin:10px 0 0;color:#bdc5b8;font-size:13px;line-height:1.8}
    .footer h3{margin:0 0 10px;color:#e9e3d8;font-size:13px;letter-spacing:.09em}
    .footer-links{display:flex;flex-direction:column;gap:7px;font-size:13px;color:#bdc5b8}
    .footer-links a:hover{color:#dce7ca}
    .copyright{margin-top:42px;padding-top:18px;border-top:1px solid rgba(229,221,206,.2);display:flex;justify-content:space-between;gap:15px;color:#aeb7aa;font-size:12px}
    .mobile-tabs{display:none}
    @media(max-width:1023px){
      .hero-grid{padding:64px 38px 48px;gap:28px}
      .solution-grid{grid-template-columns:190px 1fr;gap:30px}
      .results-grid{grid-template-columns:repeat(2,1fr)}
      .result:nth-child(3){border-left:0;border-top:1px solid rgba(229,221,206,.22)}
      .result:nth-child(4){border-top:1px solid rgba(229,221,206,.22)}
      .feedback-layout{grid-template-columns:1fr 1fr}
      .side-note{grid-column:1/-1}
      .news-layout{gap:30px}
      .cta-panel{grid-template-columns:1fr 350px;padding:40px}
    }
    @media(max-width:639px){
      body{padding-bottom:86px}
      .site-shell{padding:0 18px}
      .desktop-nav,.desktop-cta{display:none}
      .topbar{position:sticky}
      .hero-wrap{margin-top:0;border-radius:0;min-height:auto}
      .hero-grid{grid-template-columns:1fr;padding:53px 22px 0;gap:33px}
      .hero-title{font-size:40px}
      .hero-copy{font-size:15px}
      .guide-panel{margin:0 -22px;border-radius:16px 16px 0 0;padding:21px}
      .section{padding:70px 0}
      .section-title{font-size:32px}
      .section-copy{font-size:15px}
      .solution-grid{grid-template-columns:1fr;gap:26px;margin-top:33px}
      .vertical-index{padding-left:16px}
      .list-card{grid-template-columns:47px 1fr auto;gap:10px;padding:19px 15px}
      .entry-no{font-size:20px}
      .list-card h3{font-size:16px}
      .entry-meta{display:none}
      .list-card p{font-size:12px}
      .results-grid{margin-top:30px}
      .result{padding:20px 15px}
      .result-number{font-size:38px}
      .feedback-layout,.news-layout{grid-template-columns:1fr;gap:17px;margin-top:30px}
      .quote-card.offset{margin-top:0}
      .news-item{grid-template-columns:65px 1fr auto;gap:9px}
      .news-item h3{font-size:15px}
      .news-item p{display:none}
      .news-aside{margin-top:5px}
      .cta-panel{grid-template-columns:1fr;gap:27px;padding:31px 24px;border-radius:18px}
      .form-row{flex-direction:column}
      .form-row input,.form-row button{width:100%;height:48px}
      .footer{margin-top:70px;padding-bottom:30px}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .copyright{display:block;line-height:1.8}
      .mobile-tabs{
        position:fixed;left:0;right:0;bottom:0;z-index:60;
        display:grid;grid-template-columns:repeat(3,1fr);
        border-top:1px solid rgba(32,39,32,.18);
        background:rgba(243,240,232,.92);backdrop-filter:blur(12px);
        padding:7px 7px max(8px,env(safe-area-inset-bottom));
      }
      .tab-item{display:flex;flex-direction:column;align-items:center;gap:3px;padding:4px 3px;color:#6b7269;font-size:11px;line-height:1.25}
      .tab-item svg{width:20px;height:20px}
      .tab-item.active{color:var(--ink);font-weight:800}
      .tab-item.active svg{color:var(--moss)}
    }

/* roulang page: category1 */
:root{
      --paper:#F3F0E8;
      --oat:#E5DDCE;
      --ink:#202720;
      --moss:#8FA46B;
      --peach:#E99A6A;
      --muted:#697066;
      --line:rgba(32,39,32,.18);
      --soft-line:rgba(32,39,32,.10);
      --shadow:0 12px 30px rgba(32,39,32,.08);
      --radius:16px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;color:var(--ink);background:var(--paper);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      line-height:1.8;overflow-x:hidden;
    }
    body:before{
      content:"";position:fixed;inset:0;pointer-events:none;opacity:.28;z-index:-1;
      background-image:radial-gradient(rgba(32,39,32,.11) .45px,transparent .55px);
      background-size:7px 7px;mix-blend-mode:multiply;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    .site-shell{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:50;background:rgba(243,240,232,.94);
      backdrop-filter:blur(12px);border-bottom:1px solid var(--line)
    }
    .nav-link{
      position:relative;display:inline-flex;align-items:center;min-height:72px;
      font-size:13px;letter-spacing:.08em;color:#5b6359;transition:color .2s ease
    }
    .nav-link:hover,.nav-link.active{color:var(--ink)}
    .nav-link.active:after{
      content:"";position:absolute;left:0;right:0;bottom:13px;height:3px;
      border-radius:999px;background:var(--moss)
    }
    .brand-mark{
      display:grid;width:28px;height:28px;place-items:center;border:1px solid var(--moss);
      color:var(--moss);font-size:11px;font-weight:800;border-radius:50%;flex:none
    }
    .btn-main,.btn-line{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:45px;
      padding:0 18px;border-radius:9px;font-size:14px;font-weight:700;letter-spacing:.03em;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease
    }
    .btn-main{background:var(--ink);border:1px solid var(--ink);color:#f8f5ec}
    .btn-main:hover{transform:translateY(-2px);background:#303b30;border-color:var(--moss);box-shadow:0 10px 20px rgba(32,39,32,.2)}
    .btn-line{background:transparent;border:1px solid var(--line);color:var(--ink)}
    .btn-line:hover{transform:translateY(-2px);border-color:var(--moss);background:#ece7dc;box-shadow:var(--shadow)}
    .btn-main:focus-visible,.btn-line:focus-visible,.nav-link:focus-visible,
    .list-card:focus-visible,summary:focus-visible,input:focus-visible{
      outline:3px solid rgba(143,164,107,.55);outline-offset:3px
    }
    .page-head{padding:70px 0 58px;border-bottom:1px solid var(--line)}
    .eyebrow,.section-kicker{
      color:#6d7d52;font-size:12px;font-weight:800;letter-spacing:.14em
    }
    .page-title{
      max-width:850px;margin:16px 0 18px;font-size:clamp(38px,5.4vw,66px);
      line-height:1.16;letter-spacing:-.055em;font-weight:800
    }
    .page-copy{max-width:790px;color:#5e665d;font-size:16px;line-height:1.9}
    .crumbs{display:flex;gap:10px;align-items:center;color:#75806d;font-size:12px}
    .crumbs a:hover{color:var(--ink)}
    .meta-line{display:flex;flex-wrap:wrap;gap:18px;margin-top:28px;padding-top:16px;border-top:1px solid var(--soft-line);color:#697066;font-size:13px}
    .meta-line strong{color:var(--ink);margin-right:5px}
    .section{padding:78px 0;border-bottom:1px solid var(--soft-line)}
    .browse-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:54px;align-items:start}
    .filter-panel{
      position:sticky;top:98px;padding:23px;background:#e8e1d4;border:1px solid var(--line);
      border-radius:15px
    }
    .filter-panel h2{margin:0 0 18px;font-size:18px}
    .filter-group{padding:17px 0;border-top:1px solid var(--soft-line)}
    .filter-group:first-of-type{border-top:0;padding-top:0}
    .filter-label{display:block;margin-bottom:10px;font-size:12px;font-weight:800;color:#5e665d;letter-spacing:.08em}
    .chip{
      display:inline-flex;align-items:center;margin:0 5px 8px 0;padding:4px 10px;
      border:1px solid var(--line);border-radius:999px;font-size:12px;background:#eee9de;
      transition:.2s ease
    }
    .chip:hover,.chip.active{border-color:var(--moss);background:#dce3cf;color:#33412d}
    .index-note{
      display:flex;justify-content:space-between;gap:15px;margin-bottom:15px;padding:11px 14px;
      color:#687065;background:#ebe5d9;border-left:3px solid var(--moss);font-size:13px
    }
    .list-card{
      display:grid;grid-template-columns:62px minmax(0,1fr) auto;gap:20px;align-items:center;
      margin-bottom:13px;padding:21px 23px;background:#ebe5d9;border:1px solid var(--line);
      border-radius:14px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease
    }
    .list-card:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:var(--moss)}
    .list-card.featured{padding:29px 25px;background:var(--ink);color:#f4f0e7;border-color:var(--ink)}
    .serial{font-family:monospace;font-size:18px;color:#7d886d;letter-spacing:.04em}
    .featured .serial{color:#d3dfbd}
    .entry-tag,.badge{
      display:inline-flex;align-items:center;border-radius:999px;padding:3px 9px;
      font-size:11px;line-height:1.55;letter-spacing:.05em;font-weight:700;
      background:rgba(143,164,107,.18);color:#54643d
    }
    .featured .entry-tag{background:rgba(143,164,107,.25);color:#dbe6ca}
    .list-card h3{margin:8px 0 5px;font-size:19px;line-height:1.4;font-weight:800}
    .list-card p{margin:0;color:#687065;font-size:14px;line-height:1.7}
    .featured p{color:#c8cdc4}
    .entry-meta{display:flex;flex-wrap:wrap;gap:11px;margin-top:9px;color:#7b8379;font-size:12px}
    .featured .entry-meta{color:#cbd1c4}
    .arrow{font-size:25px;color:var(--peach);transition:transform .2s ease}
    .list-card:hover .arrow{transform:translateX(5px)}
    .access-panel{
      margin-top:35px;padding:22px 25px;background:var(--oat);border:1px solid var(--line);
      border-radius:14px;display:flex;justify-content:space-between;gap:24px;align-items:center
    }
    .access-panel h2{margin:0 0 5px;font-size:18px}
    .access-panel p{margin:0;color:#5f685e;font-size:14px}
    .faq-list{margin-top:28px;border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line)}
    summary{
      display:flex;justify-content:space-between;gap:20px;padding:20px 2px;
      list-style:none;font-size:16px;font-weight:700;cursor:pointer
    }
    summary::-webkit-details-marker{display:none}
    summary span{font-size:23px;font-weight:400;color:var(--peach);line-height:1;transition:transform .2s}
    details[open] summary span{transform:rotate(45deg)}
    details p{max-width:780px;margin:-7px 40px 20px 2px;color:#616a60;font-size:14px;line-height:1.8}
    .cta{
      margin:76px 0 0;padding:42px 45px;background:var(--ink);color:#f8f5ec;border-radius:24px;
      display:flex;justify-content:space-between;align-items:center;gap:35px;overflow:hidden;position:relative
    }
    .cta:after{content:"";position:absolute;right:-55px;bottom:-90px;width:220px;height:220px;border:1px solid rgba(143,164,107,.35);border-radius:50%}
    .cta h2{position:relative;z-index:1;margin:0 0 8px;font-size:clamp(25px,3vw,38px);line-height:1.3}
    .cta p{position:relative;z-index:1;margin:0;color:#c8cec3;font-size:14px}
    .cta-actions{position:relative;z-index:1;display:flex;gap:10px;flex:none}
    .cta .btn-line{color:#f8f5ec;border-color:rgba(229,221,206,.45)}
    .cta .btn-line:hover{color:var(--ink);background:var(--oat)}
    .footer{padding:58px 0 25px;background:var(--ink);color:#e5ddce}
    .footer-grid{display:grid;grid-template-columns:1.35fr .75fr 1fr;gap:70px}
    .footer-logo{font-size:18px;font-weight:800;margin-bottom:12px}
    .footer p{margin:0;color:#bfc7b9;font-size:13px;line-height:1.8}
    .footer h3{margin:0 0 12px;font-size:13px;color:#f3f0e8}
    .footer-links{display:grid;gap:7px;color:#bfc7b9;font-size:13px}
    .footer-links a{transition:color .2s ease}
    .footer-links a:hover{color:var(--peach)}
    .copyright{display:flex;justify-content:space-between;gap:20px;margin-top:45px;padding-top:18px;border-top:1px solid rgba(229,221,206,.2);color:#96a091;font-size:11px}
    .mobile-tabs{display:none}
    @media(max-width:1023px){
      .desktop-nav{gap:18px}.browse-layout{grid-template-columns:220px 1fr;gap:28px}
      .site-shell{width:min(100% - 32px,760px)}
      .footer-grid{gap:35px}
    }
    @media(max-width:639px){
      body{padding-bottom:72px}.site-shell{width:calc(100% - 30px)}
      .topbar .site-shell{height:64px}.desktop-nav,.desktop-cta{display:none}
      .page-head{padding:46px 0 38px}.page-title{font-size:40px}
      .browse-layout{display:block}.filter-panel{position:static;margin-bottom:26px}
      .filter-panel .filter-group:not(:first-of-type){display:none}
      .list-card,.list-card.featured{grid-template-columns:38px minmax(0,1fr);gap:13px;padding:19px 16px}
      .list-card .arrow{grid-column:2;position:absolute;right:16px;top:21px}
      .list-card{position:relative;padding-right:45px}
      .entry-meta{padding-right:15px}
      .access-panel,.cta{display:block;padding:25px 22px}
      .access-panel .btn-line{margin-top:18px;width:100%}
      .cta-actions{display:grid;margin-top:23px}.cta-actions a{width:100%}
      .section{padding:58px 0}.footer-grid{grid-template-columns:1fr;gap:27px}
      .copyright{display:block}.copyright span{display:block;margin-top:5px}
      .mobile-tabs{
        display:grid;grid-template-columns:repeat(4,1fr);position:fixed;z-index:60;bottom:0;left:0;right:0;
        height:68px;background:rgba(243,240,232,.96);backdrop-filter:blur(10px);border-top:1px solid var(--line)
      }
      .mobile-tabs a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:10px;color:#697066}
      .mobile-tabs a.active{color:var(--ink);font-weight:800}
      .mobile-tabs svg{width:20px;height:20px}.mobile-tabs a.active:after{content:"";width:20px;height:3px;background:var(--moss);border-radius:999px;position:absolute;bottom:4px}
    }

/* roulang page: category2 */
:root{
      --paper:#F3F0E8;
      --oat:#E5DDCE;
      --ink:#202720;
      --moss:#8FA46B;
      --peach:#E99A6A;
      --muted:#697066;
      --line:rgba(32,39,32,.18);
      --soft-line:rgba(32,39,32,.10);
      --shadow:0 12px 30px rgba(32,39,32,.08);
      --radius:16px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;color:var(--ink);background:var(--paper);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      line-height:1.8;overflow-x:hidden;
    }
    body:before{
      content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;opacity:.28;
      background-image:radial-gradient(rgba(32,39,32,.11) .45px,transparent .55px);
      background-size:7px 7px;mix-blend-mode:multiply;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    .site-shell{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:50;background:rgba(243,240,232,.94);
      backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
    }
    .nav-link{
      position:relative;display:inline-flex;align-items:center;min-height:72px;
      font-size:13px;letter-spacing:.08em;color:#5b6359;transition:color .2s ease;
    }
    .nav-link:hover,.nav-link.active{color:var(--ink)}
    .nav-link.active:after{
      content:"";position:absolute;left:0;right:0;bottom:13px;height:3px;
      border-radius:999px;background:var(--moss);
    }
    .brand-mark{
      display:grid;width:28px;height:28px;place-items:center;border:1px solid var(--moss);
      color:var(--moss);font-size:11px;font-weight:800;border-radius:50%;flex:none;
    }
    .btn-main,.btn-line{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:45px;
      padding:0 18px;border-radius:9px;font-size:14px;font-weight:700;letter-spacing:.03em;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
    }
    .btn-main{background:var(--ink);border:1px solid var(--ink);color:#f8f5ec}
    .btn-main:hover{transform:translateY(-2px);background:#303b30;border-color:var(--moss);box-shadow:0 10px 20px rgba(32,39,32,.2)}
    .btn-line{background:transparent;border:1px solid var(--line);color:var(--ink)}
    .btn-line:hover{transform:translateY(-2px);border-color:var(--moss);background:#ece7dc;box-shadow:var(--shadow)}
    .btn-main:focus-visible,.btn-line:focus-visible,.nav-link:focus-visible,.topic-card:focus-visible,summary:focus-visible,input:focus-visible{
      outline:3px solid rgba(143,164,107,.55);outline-offset:3px;
    }
    .cover{
      position:relative;overflow:hidden;margin-top:24px;border-radius:0 0 28px 28px;
      background:var(--ink);color:#f8f5ec;
    }
    .cover:before{
      content:"";position:absolute;right:-100px;top:-170px;width:470px;height:470px;border-radius:50%;
      background:radial-gradient(circle,rgba(233,154,106,.9) 0 12%,transparent 12.5% 100%);
      opacity:.9;
    }
    .cover:after{
      content:"";position:absolute;inset:0;opacity:.18;pointer-events:none;
      background-image:radial-gradient(#e5ddce .75px,transparent .9px);background-size:8px 8px;
      mask-image:linear-gradient(120deg,transparent 8%,#000 48%,transparent 90%);
    }
    .cover-inner{position:relative;z-index:1;padding:72px 64px 62px}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:#cdd7bb;font-size:12px;font-weight:700;letter-spacing:.15em}
    .eyebrow:before{content:"";width:28px;height:1px;background:var(--moss)}
    .cover h1{
      max-width:820px;margin:24px 0 18px;font-size:clamp(38px,5.2vw,68px);
      line-height:1.16;letter-spacing:-.055em;font-weight:800;
    }
    .cover-copy{max-width:690px;color:#d5d7d0;font-size:16px;line-height:1.95}
    .cover-meta{display:flex;flex-wrap:wrap;gap:14px 28px;margin-top:30px;padding-top:17px;border-top:1px solid rgba(229,221,206,.28);color:#c8cec3;font-size:13px}
    .cover-stamp{
      position:absolute;right:11%;bottom:45px;width:92px;height:92px;border:1px solid var(--peach);
      border-radius:50%;display:grid;place-items:center;color:#f0b08a;font-size:11px;
      line-height:1.35;text-align:center;transform:rotate(11deg);letter-spacing:.08em;
    }
    .section{padding:88px 0;border-bottom:1px solid var(--soft-line)}
    .section-kicker{font-size:12px;color:#6d7d52;letter-spacing:.14em;font-weight:800}
    .section-title{margin:12px 0 14px;font-size:clamp(30px,4vw,48px);line-height:1.23;letter-spacing:-.04em;font-weight:800}
    .section-copy{margin:0;color:#5e665d;font-size:16px;line-height:1.9;max-width:710px}
    .topic-block{margin-top:52px}
    .topic-head{display:grid;grid-template-columns:90px minmax(0,1fr);gap:22px;align-items:start;margin-bottom:22px}
    .topic-number{font:700 48px/1 Georgia,serif;color:var(--peach);letter-spacing:-.08em}
    .topic-head h2{margin:0;font-size:27px;line-height:1.35;font-weight:800}
    .topic-head p{margin:6px 0 0;color:var(--muted);font-size:14px}
    .topic-grid{display:grid;grid-template-columns:1.35fr .8fr;gap:16px}
    .topic-card{
      position:relative;min-height:205px;padding:27px;border:1px solid var(--line);
      border-radius:16px;background:#ebe5d9;transition:transform .2s,box-shadow .2s,border-color .2s;
      overflow:hidden;
    }
    .topic-card:hover{transform:translateY(-4px);border-color:var(--moss);box-shadow:var(--shadow)}
    .topic-card.wide{min-height:245px;background:#dfe6d3}
    .topic-card.dark{background:var(--ink);color:#f6f1e7;border-color:var(--ink)}
    .topic-card:after{
      content:"";position:absolute;right:-26px;bottom:-35px;width:140px;height:140px;
      border-radius:50%;border:1px solid rgba(32,39,32,.2);
      box-shadow:0 0 0 11px rgba(32,39,32,.04),0 0 0 22px rgba(32,39,32,.035);
    }
    .card-index{font-size:11px;letter-spacing:.12em;color:#68765a;font-weight:800}
    .dark .card-index{color:#becdad}
    .topic-card h3{margin:25px 0 8px;font-size:22px;line-height:1.35;font-weight:800}
    .topic-card p{margin:0;max-width:420px;color:#626b60;font-size:14px;line-height:1.8}
    .dark p{color:#c8cec4}
    .card-foot{position:absolute;left:27px;right:27px;bottom:22px;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#75806d}
    .dark .card-foot{color:#c8cec4}
    .guide-panel{margin-top:60px;padding:28px 30px;background:var(--oat);border:1px solid var(--line);border-radius:18px}
    .guide-panel h2{margin:0 0 18px;font-size:22px}
    .guide-rules{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
    .guide-rule{padding:8px 24px;border-left:1px solid var(--line);font-size:14px;color:#5f685d}
    .guide-rule:first-child{border-left:0;padding-left:0}
    .guide-rule strong{display:block;color:var(--ink);margin-bottom:5px}
    .faq{padding:74px 0 30px}
    .faq-list{max-width:820px;margin-top:30px;border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:0}
    summary{list-style:none;display:flex;justify-content:space-between;gap:18px;padding:20px 0;font-weight:800;cursor:pointer}
    summary::-webkit-details-marker{display:none}
    summary span:last-child{color:var(--peach);font-size:24px;line-height:1;transition:transform .2s}
    details[open] summary span:last-child{transform:rotate(45deg)}
    details p{margin:-5px 34px 20px 0;color:#626a61;font-size:14px;line-height:1.85}
    .cta{margin:58px 0 88px;padding:40px;border-radius:24px;background:var(--ink);color:#f8f5ec;position:relative;overflow:hidden}
    .cta:after{content:"";position:absolute;width:230px;height:230px;right:-90px;top:-120px;border:1px solid rgba(233,154,106,.55);border-radius:50%;box-shadow:0 0 0 18px rgba(233,154,106,.08),0 0 0 36px rgba(233,154,106,.05)}
    .cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{margin:0 0 8px;font-size:30px;line-height:1.3}
    .cta p{margin:0;color:#cdd2c9;font-size:14px}
    .footer{background:var(--ink);color:#e5ddce;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.3fr .8fr 1fr;gap:58px}
    .footer-logo{font-size:19px;font-weight:800;letter-spacing:-.03em}
    .footer p{margin:12px 0 0;color:#b9c0b5;font-size:13px;line-height:1.8;max-width:370px}
    .footer h3{margin:0 0 12px;color:#f2eee4;font-size:13px}
    .footer-links{display:grid;gap:7px;color:#b9c0b5;font-size:13px}
    .footer-links a{transition:color .2s}
    .footer-links a:hover{color:var(--peach)}
    .copyright{display:flex;justify-content:space-between;gap:15px;margin-top:48px;padding-top:17px;border-top:1px solid rgba(229,221,206,.2);color:#929b90;font-size:11px}
    .mobile-tabs{display:none}
    @media (max-width:1023px){
      .site-shell{width:min(100% - 32px,760px)}
      .desktop-nav{gap:20px}
      .cover-inner{padding:58px 35px}
      .topic-grid{grid-template-columns:1fr 1fr}
      .footer-grid{gap:28px}
    }
    @media (max-width:639px){
      body{padding-bottom:76px}
      .site-shell{width:calc(100% - 28px)}
      .topbar .site-shell{height:64px}
      .desktop-nav,.desktop-cta{display:none}
      .cover{margin-top:14px;border-radius:0 0 20px 20px}
      .cover-inner{padding:45px 22px 38px}
      .cover h1{font-size:40px}
      .cover-copy{font-size:15px}
      .cover-stamp{right:16px;bottom:24px;width:66px;height:66px;font-size:9px}
      .cover-meta{padding-right:72px;gap:5px 16px}
      .section{padding:62px 0}
      .topic-block{margin-top:38px}
      .topic-head{grid-template-columns:56px 1fr;gap:13px}
      .topic-number{font-size:37px}
      .topic-head h2{font-size:23px}
      .topic-grid{grid-template-columns:1fr}
      .topic-card,.topic-card.wide{min-height:220px}
      .guide-panel{margin-top:42px;padding:23px 20px}
      .guide-rules{display:block}
      .guide-rule{border-left:0;border-top:1px solid var(--line);padding:14px 0}
      .guide-rule:first-child{border-top:0;padding-top:0}
      .cta{margin:42px 0 55px;padding:28px 22px;border-radius:19px}
      .cta-inner{display:block}
      .cta h2{font-size:25px}
      .cta .btn-main{width:100%;margin-top:22px}
      .footer{padding:42px 0 28px}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .copyright{display:block;margin-top:35px}
      .copyright span{display:block;margin-top:5px}
      .mobile-tabs{
        position:fixed;display:grid;grid-template-columns:repeat(3,1fr);left:0;right:0;bottom:0;
        height:70px;z-index:60;background:rgba(243,240,232,.96);backdrop-filter:blur(12px);
        border-top:1px solid var(--line);box-shadow:0 -8px 22px rgba(32,39,32,.08);
      }
      .mobile-tabs a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;color:#70796c}
      .mobile-tabs a.active{color:var(--ink);font-weight:800}
      .mobile-tabs a.active:after{content:"";width:22px;height:3px;border-radius:99px;background:var(--moss);position:absolute;bottom:7px}
      .mobile-tabs svg{width:20px;height:20px}
    }