/* roulang page: index */
:root{
      --night:#1a121b;
      --plum:#3a2039;
      --plum-2:#241a25;
      --plum-3:#2d202d;
      --moss:#6e8d76;
      --moss-soft:#99ae9b;
      --moon:#f0e2cc;
      --paper:#e9ddcc;
      --ink:#382a35;
      --coral:#b96d67;
      --muted:#cdbfbd;
      --line:rgba(240,226,204,.22);
      --line-strong:rgba(240,226,204,.48);
      --shadow:0 20px 55px rgba(0,0,0,.26);
      --r-sm:12px;
      --r-md:16px;
      --r-lg:20px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--moon);
      background:var(--night);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.8;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.33;
      background-image:radial-gradient(rgba(240,226,204,.14) .7px,transparent .8px);
      background-size:8px 8px;
      mix-blend-mode:soft-light;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    ::selection{background:var(--moss);color:#fff}
    .container{max-width:1200px}
    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      background:rgba(58,32,57,.94);
      border-bottom:1px solid rgba(240,226,204,.16);
      transition:.25s ease;
    }
    .site-header.scrolled{
      background:rgba(35,23,36,.97);
      box-shadow:0 10px 32px rgba(0,0,0,.22);
    }
    .navbar{min-height:80px;padding:12px 0}
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--moon)!important;
      font-size:19px;
      font-weight:800;
      letter-spacing:.05em;
      white-space:nowrap;
    }
    .seal-mark{
      width:34px;height:34px;border:1px solid var(--moon);border-radius:50%;
      position:relative;display:inline-block;box-shadow:inset 0 0 0 4px rgba(240,226,204,.07);
    }
    .seal-mark:before,.seal-mark:after{
      content:"";position:absolute;border:1px solid var(--moss);border-radius:50%;
    }
    .seal-mark:before{inset:6px 10px}
    .seal-mark:after{inset:10px 5px;border-color:rgba(240,226,204,.55)}
    .navbar-toggler{
      border:1px solid var(--line-strong)!important;
      border-radius:10px;
      padding:8px 10px;
      box-shadow:none!important;
    }
    .navbar-toggler-icon{filter:invert(1)}
    .navbar-nav{gap:4px}
    .nav-link{
      color:rgba(240,226,204,.76)!important;
      padding:10px 13px!important;
      font-size:14px;font-weight:650;
      border-bottom:1px solid transparent;
      transition:.2s ease;
    }
    .nav-link:hover,.nav-link.active{color:var(--moon)!important;border-bottom-color:var(--moss)}
    .nav-status{display:flex;align-items:center;gap:8px;margin-left:14px}
    .age-badge,.state-badge,.mini-badge,.topic-tag{
      display:inline-flex;align-items:center;gap:6px;
      border:1px solid currentColor;border-radius:999px;
      padding:4px 9px;font-size:12px;font-weight:750;letter-spacing:.04em;
      line-height:1.2;
    }
    .age-badge{color:#efb7b2;background:rgba(185,109,103,.1)}
    .state-badge{color:#b9cfbd;border-color:rgba(110,141,118,.7);background:rgba(110,141,118,.12)}
    .nav-time{font-size:12px;color:var(--muted);white-space:nowrap}
    .nav-time strong{font-size:13px;color:var(--moon);font-variant-numeric:tabular-nums}
    .btn{
      min-height:44px;border-radius:12px;padding:10px 18px;
      font-weight:750;letter-spacing:.02em;transition:transform .2s ease,background .2s ease,border .2s ease,box-shadow .2s ease;
      box-shadow:none!important;
    }
    .btn:focus-visible,.nav-link:focus-visible,.accordion-button:focus-visible{outline:3px solid rgba(110,141,118,.72);outline-offset:3px}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(1px)}
    .btn-moon{background:var(--moon);color:var(--plum);border:1px solid var(--moon)}
    .btn-moon:hover{background:var(--moss);border-color:var(--moss);color:#fff}
    .btn-outline-moon{border:1px solid var(--line-strong);color:var(--moon);background:rgba(26,18,27,.12)}
    .btn-outline-moon:hover{border-color:var(--moss);background:rgba(110,141,118,.16);color:var(--moon)}
    .hero{
      position:relative;
      padding:78px 0 34px;
      min-height:680px;
      background:
        radial-gradient(circle at 79% 35%,rgba(110,141,118,.19),transparent 24%),
        radial-gradient(circle at 13% 82%,rgba(185,109,103,.09),transparent 28%),
        linear-gradient(135deg,#3a2039 0%,#241a25 52%,#171117 100%);
      overflow:hidden;
    }
    .hero:before{
      content:"";position:absolute;width:650px;height:650px;right:-170px;top:-170px;
      border:1px solid rgba(240,226,204,.16);border-radius:50%;
      box-shadow:0 0 0 40px rgba(240,226,204,.025),0 0 0 105px rgba(110,141,118,.035),0 0 0 176px rgba(240,226,204,.018);
    }
    .hero:after{
      content:"";position:absolute;left:-4%;right:-4%;bottom:-1px;height:115px;
      background:linear-gradient(160deg,transparent 30%,rgba(18,13,18,.72) 31%,rgba(18,13,18,.92) 62%,var(--night) 63%);
      clip-path:polygon(0 65%,14% 36%,27% 61%,43% 21%,57% 55%,70% 27%,84% 63%,100% 31%,100% 100%,0 100%);
      opacity:.56;
    }
    .hero-content{position:relative;z-index:1}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      color:#c7d8c9;text-transform:none;font-size:13px;font-weight:750;letter-spacing:.09em;
    }
    .eyebrow:before{content:"";width:27px;height:1px;background:var(--moss)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,55px);line-height:1.16;letter-spacing:.025em;font-weight:800;margin:18px 0}
    h1 .accent{display:block;color:var(--moon)}
    .hero-copy{max-width:700px;color:#ded1cf;font-size:17px;line-height:1.95;margin-bottom:24px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px}
    .safe-note{font-size:13px;color:#c7b9b8;display:flex;align-items:flex-start;gap:8px;max-width:660px}
    .safe-note i{color:var(--moss);font-style:normal}
    .icon-matrix{
      display:grid;grid-template-columns:repeat(4,1fr);gap:12px;
      margin-top:48px;max-width:845px;
    }
    .matrix-cell{
      min-height:105px;padding:16px;border:1px solid var(--line);border-radius:var(--r-md);
      background:linear-gradient(145deg,rgba(240,226,204,.07),rgba(255,255,255,.015));
      position:relative;overflow:hidden;
    }
    .matrix-cell:nth-child(2),.matrix-cell:nth-child(7){background:rgba(110,141,118,.12);border-color:rgba(110,141,118,.48)}
    .matrix-icon{
      width:28px;height:28px;border:1px solid rgba(240,226,204,.62);border-radius:50%;
      display:grid;place-items:center;color:var(--moss);font-weight:800;font-size:13px;margin-bottom:9px;
    }
    .matrix-cell b{display:block;font-size:14px;color:var(--moon)}
    .matrix-cell small{display:block;color:#baacab;font-size:12px;margin-top:2px}
    .overview-panel{
      margin-top:30px;position:relative;min-height:405px;border:1px solid var(--line-strong);border-radius:20px;
      background:linear-gradient(145deg,rgba(45,32,45,.88),rgba(20,14,20,.72));
      box-shadow:var(--shadow),inset 0 0 0 5px rgba(240,226,204,.025);
      overflow:hidden;padding:28px;
    }
    .overview-panel:before{
      content:"";position:absolute;width:280px;height:280px;left:50%;top:50%;transform:translate(-50%,-55%);
      border:1px dashed rgba(240,226,204,.28);border-radius:50%;
      box-shadow:0 0 0 24px rgba(110,141,118,.035),0 0 0 60px rgba(240,226,204,.025);
    }
    .overview-label{font-size:12px;color:#d7c8b8;letter-spacing:.12em;position:relative;z-index:1}
    .core-seal{
      position:absolute;top:50%;left:50%;transform:translate(-50%,-52%);
      z-index:2;width:130px;height:130px;border-radius:50%;border:1px solid var(--moon);
      display:flex;align-items:center;justify-content:center;text-align:center;
      background:radial-gradient(circle,rgba(240,226,204,.18),rgba(58,32,57,.9) 65%);
      box-shadow:0 0 34px rgba(240,226,204,.11),inset 0 0 0 8px rgba(240,226,204,.05);
      font-weight:800;line-height:1.4;
    }
    .core-seal span{font-size:12px;display:block;color:#cfc1b4;font-weight:600}
    .node{
      position:absolute;z-index:2;color:#dacdc7;font-size:12px;line-height:1.35;
      padding:8px 10px;border:1px solid rgba(240,226,204,.22);background:rgba(26,18,27,.64);border-radius:10px;
    }
    .node:before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--moss);margin-right:6px}
    .n1{top:82px;left:32px}.n2{top:77px;right:25px}.n3{bottom:84px;left:36px}.n4{bottom:82px;right:28px}
    .overview-bar{
      position:absolute;left:22px;right:22px;bottom:18px;border-top:1px solid var(--line);
      padding-top:13px;display:flex;justify-content:space-between;color:#cdbfbd;font-size:12px;
    }
    .overview-bar strong{color:var(--moon);font-size:14px}
    .status-strip{position:relative;z-index:2;margin-top:18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(21,15,21,.62)}
    .status-inner{min-height:62px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:13px;color:#cdbfbd}
    .status-item{display:flex;align-items:center;gap:8px}
    .status-dot{width:8px;height:8px;border-radius:50%;background:var(--moss);box-shadow:0 0 0 4px rgba(110,141,118,.12)}
    .section{padding:104px 0;position:relative}
    .section-head{max-width:720px;margin-bottom:42px}
    .section-kicker{color:var(--moss-soft);font-size:13px;font-weight:750;letter-spacing:.1em;margin-bottom:9px}
    h2{font-size:clamp(29px,3.5vw,40px);line-height:1.25;font-weight:800;letter-spacing:.02em;margin-bottom:13px}
    .section-head p{color:var(--muted);margin-bottom:0;font-size:16px}
    .chapter-section{background:var(--plum-2)}
    .chapter-wrap{display:grid;grid-template-columns:290px 1fr;gap:42px;align-items:stretch}
    .chapter-nav{position:relative;padding:8px 0}
    .chapter-nav:before{content:"";position:absolute;left:18px;top:32px;bottom:32px;width:1px;background:linear-gradient(var(--moss),rgba(240,226,204,.1))}
    .chapter-tab{
      position:relative;z-index:1;width:100%;display:flex;gap:14px;align-items:center;text-align:left;padding:15px 13px;
      color:#c8b9b8;background:transparent;border:0;border-left:2px solid transparent;transition:.2s ease;
    }
    .chapter-tab:hover,.chapter-tab.active{color:var(--moon);background:rgba(240,226,204,.05);border-left-color:var(--moss)}
    .chapter-no{width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line-strong);background:var(--plum);font-weight:800}
    .chapter-tab.active .chapter-no{background:var(--moss);border-color:var(--moss);color:#fff}
    .chapter-tab span:last-child{font-size:15px;font-weight:750}
    .feature-panel{
      min-height:370px;border:1px solid var(--line);border-radius:var(--r-lg);padding:42px;
      background:
        linear-gradient(135deg,rgba(240,226,204,.06),transparent 44%),
        var(--plum-3);
      box-shadow:var(--shadow),inset 0 0 0 5px rgba(240,226,204,.02);
      position:relative;overflow:hidden;
    }
    .feature-panel:after{content:"";position:absolute;width:250px;height:250px;border:1px solid rgba(110,141,118,.18);border-radius:50%;right:-90px;bottom:-100px}
    .feature-mark{width:58px;height:58px;border:1px solid var(--line-strong);display:grid;place-items:center;border-radius:15px;color:var(--moss-soft);font-size:24px;margin-bottom:22px}
    .feature-panel h3{font-size:27px;font-weight:800;margin-bottom:12px}
    .feature-panel p{color:var(--muted);max-width:650px}
    .feature-list{list-style:none;padding:0;margin:20px 0 26px;display:grid;grid-template-columns:1fr 1fr;gap:10px}
    .feature-list li{color:#e0d5cd;font-size:14px}
    .feature-list li:before{content:"◇";color:var(--moss);margin-right:9px}
    .feature-meta{display:flex;flex-wrap:wrap;gap:10px}
    .mini-badge{color:#d9ccc0;border-color:rgba(240,226,204,.25);font-size:12px}
    .scene-section{background:linear-gradient(180deg,var(--night),#211722)}
    .scene-map{position:relative;min-height:590px;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;background:rgba(45,32,45,.55);overflow:hidden}
    .scene-map:before{
      content:"";position:absolute;inset:14% 8%;border:1px dashed rgba(110,141,118,.4);border-radius:49% 51% 42% 58% / 54% 40% 60% 46%;
      transform:rotate(-8deg);
    }
    .scene-map:after{content:"";position:absolute;left:20%;top:48%;width:61%;height:1px;background:var(--moss);transform:rotate(-13deg);opacity:.55}
    .scene-card{position:absolute;width:270px;padding:21px;border:1px solid var(--line);border-radius:var(--r-md);background:rgba(36,26,37,.94);box-shadow:var(--shadow);transition:.25s ease}
    .scene-card:hover{transform:translateY(-4px);border-color:var(--moss)}
    .scene-card.s1{left:7%;top:13%}.scene-card.s2{right:8%;top:21%}.scene-card.s3{left:24%;bottom:10%}.scene-card.s4{right:13%;bottom:8%}
    .scene-number{font-size:12px;color:var(--moss-soft);font-weight:800;letter-spacing:.1em}
    .scene-card h3{font-size:19px;font-weight:800;margin:8px 0}
    .scene-card p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:12px}
    .scene-link{font-size:13px;color:var(--moon);font-weight:750}
    .scene-link:after{content:" →";color:var(--moss)}
    .case-section{background:var(--plum)}
    .case-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:22px}
    .case-featured,.case-index{
      border:1px solid var(--line);border-radius:var(--r-lg);background:rgba(26,18,27,.32);
      box-shadow:inset 0 0 0 5px rgba(240,226,204,.018);
    }
    .case-featured{padding:35px;position:relative;overflow:hidden}
    .case-featured:after{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(240,226,204,.16);border-radius:50%;right:-75px;top:-55px}
    .topic-tag{color:#bdd0be;border-color:rgba(110,141,118,.7);background:rgba(110,141,118,.1);font-size:12px}
    .case-featured h3{font-size:28px;font-weight:800;margin:18px 0 10px;position:relative;z-index:1}
    .case-featured p{color:var(--muted);max-width:620px;position:relative;z-index:1}
    .case-steps{display:flex;gap:9px;flex-wrap:wrap;margin:24px 0}
    .case-step{padding:8px 11px;border-left:2px solid var(--moss);background:rgba(240,226,204,.05);font-size:13px;color:#dfd4cc}
    .case-result{border-top:1px solid var(--line);padding-top:17px;font-size:14px;color:#cfc1b9}
    .case-result strong{color:var(--moon)}
    .case-stack{display:grid;gap:14px}
    .case-index{padding:20px;transition:.2s ease;cursor:pointer}
    .case-index:hover{border-color:var(--moss);transform:translateX(-3px)}
    .case-index small{color:var(--moss-soft);font-weight:800;letter-spacing:.08em}
    .case-index h3{font-size:17px;font-weight:800;margin:6px 0}
    .case-index p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .reference-note{margin-top:16px;font-size:12px;color:#b8a9aa}
    .paper-section{color:var(--ink);background:var(--paper);position:relative}
    .paper-section:before,.paper-section:after{content:"";position:absolute;left:0;right:0;height:18px;background:repeating-linear-gradient(90deg,transparent 0 16px,rgba(58,32,57,.12) 17px 18px);opacity:.35}
    .paper-section:before{top:0}.paper-section:after{bottom:0}
    .paper-section .section-kicker{color:#587360}
    .paper-section .section-head p{color:#675860}
    .plans{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:end}
    .plan{min-height:405px;padding:29px 25px;border-radius:var(--r-md);border:1px solid rgba(58,32,57,.35);background:#332333;color:var(--moon);box-shadow:0 14px 28px rgba(58,32,57,.12);display:flex;flex-direction:column}
    .plan.featured{min-height:430px;background:var(--moon);color:var(--plum);border-color:var(--moon);transform:translateY(-18px)}
    .plan-label{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--moss-soft)}
    .plan.featured .plan-label{color:#54755e}
    .plan h3{font-size:24px;font-weight:800;margin:13px 0 6px}
    .plan-sub{font-size:14px;line-height:1.65;opacity:.82;min-height:46px}
    .plan-price{font-size:26px;font-weight:800;margin:25px 0 15px}
    .plan-price small{font-size:13px;font-weight:600}
    .plan ul{padding:0;margin:0 0 25px;list-style:none;flex-grow:1}
    .plan li{font-size:14px;padding:7px 0;border-bottom:1px solid rgba(240,226,204,.13)}
    .plan.featured li{border-color:rgba(58,32,57,.15)}
    .plan li:before{content:"✓";color:var(--moss-soft);font-weight:900;margin-right:8px}
    .plan .btn{width:100%}
    .plan.featured .btn-moon{background:var(--plum);border-color:var(--plum);color:var(--moon)}
    .plan.featured .btn-moon:hover{background:var(--moss);border-color:var(--moss)}
    .plan-note{color:#725f66;font-size:13px;margin-top:23px}
    .updates-section{background:var(--night);padding:78px 0}
    .update-board{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--plum-2)}
    .update-row{display:grid;grid-template-columns:120px 1fr 150px 130px;gap:15px;align-items:center;padding:17px 22px;border-bottom:1px solid var(--line);transition:.2s ease}
    .update-row:last-child{border-bottom:0}
    .update-row:hover{background:rgba(240,226,204,.04)}
    .update-date{font-size:13px;color:var(--moss-soft);font-weight:750}
    .update-title{font-size:15px;font-weight:750}
    .update-desc{font-size:13px;color:var(--muted)}
    .update-status{justify-self:end}
    .faq-section{background:var(--plum-2)}
    .accordion{--bs-accordion-bg:transparent;--bs-accordion-border-color:var(--line);--bs-accordion-btn-color:var(--moon);--bs-accordion-active-color:var(--moon);--bs-accordion-active-bg:rgba(240,226,204,.05);--bs-accordion-btn-focus-box-shadow:none}
    .accordion-item{border-color:var(--line)!important;background:transparent!important}
    .accordion-button{color:var(--moon)!important;font-weight:750;padding:19px 20px;background:transparent!important}
    .accordion-button:after{filter:invert(1) sepia(.2);opacity:.75}
    .accordion-body{color:var(--muted);padding:0 20px 20px;font-size:15px;line-height:1.85}
    .bottom-cta{padding:68px 0;background:linear-gradient(120deg,#2d202d,#3a2039)}
    .cta-box{border:1px solid var(--line-strong);border-radius:var(--r-lg);padding:38px;display:flex;align-items:center;justify-content:space-between;gap:25px;background:rgba(26,18,27,.27);box-shadow:inset 0 0 0 5px rgba(240,226,204,.025)}
    .cta-box h2{font-size:31px;margin:0 0 8px}.cta-box p{margin:0;color:var(--muted)}
    footer{background:#120d13;padding:55px 0 22px;border-top:1px solid rgba(240,226,204,.12)}
    .footer-grid{display:grid;grid-template-columns:1.2fr .75fr 1fr;gap:40px;padding-bottom:36px}
    .footer-brand{font-size:19px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:12px}
    .footer-copy,.footer-list a{font-size:14px;color:#bcaeae}
    .footer-copy{max-width:365px;line-height:1.8}
    .footer-title{font-size:14px;font-weight:800;color:var(--moon);margin-bottom:12px}
    .footer-list{list-style:none;padding:0;margin:0}
    .footer-list li{margin-bottom:8px}.footer-list a:hover{color:var(--moss-soft)}
    .footer-bottom{border-top:1px solid rgba(240,226,204,.12);padding-top:19px;color:#9e9090;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    .modal-content{background:var(--plum-2);color:var(--moon);border:1px solid var(--line-strong);border-radius:var(--r-md)}
    .modal-header{border-bottom-color:var(--line)}.modal-footer{border-top-color:var(--line)}
    .btn-close{filter:invert(1)}
    @media(max-width:991px){
      .navbar-collapse{margin-top:13px;padding:13px;background:#241a25;border:1px solid var(--line);border-radius:12px}
      .nav-status{margin:10px 0;flex-wrap:wrap}
      .nav-cta{width:100%}
      .hero{padding-top:58px;min-height:auto}.overview-panel{max-width:620px;margin:35px auto 0}
      .chapter-wrap{grid-template-columns:1fr;gap:20px}.chapter-nav{display:flex;overflow-x:auto;padding-bottom:8px}.chapter-nav:before{display:none}
      .chapter-tab{min-width:190px;border:1px solid var(--line);border-radius:12px}.chapter-tab.active{border-color:var(--moss)}
      .scene-map{min-height:auto;display:grid;grid-template-columns:1fr 1fr;gap:15px}.scene-map:before,.scene-map:after{display:none}
      .scene-card{position:relative!important;left:auto!important;right:auto!important;top:auto!important;bottom:auto!important;width:auto}
      .case-grid{grid-template-columns:1fr}.plans{grid-template-columns:1fr 1fr}.plan.featured{transform:none}
      .update-row{grid-template-columns:100px 1fr 110px}.update-desc{display:none}
    }
    @media(max-width:767px){
      .navbar{min-height:70px}.navbar-brand{font-size:16px}.seal-mark{width:30px;height:30px}
      .hero{padding:48px 0 28px}.hero-copy{font-size:15px}.icon-matrix{grid-template-columns:repeat(2,1fr);margin-top:31px}.matrix-cell{min-height:93px;padding:13px}
      .overview-panel{min-height:370px;padding:19px}.core-seal{width:112px;height:112px}.n1{top:72px;left:17px}.n2{top:72px;right:17px}.n3{bottom:75px;left:17px}.n4{bottom:75px;right:17px}
      .section{padding:70px 0}.feature-panel{padding:27px;min-height:auto}.feature-list{grid-template-columns:1fr}.scene-map{grid-template-columns:1fr;padding:16px}.case-featured{padding:25px}.case-featured h3{font-size:23px}
      .plans{grid-template-columns:1fr}.plan{min-height:auto}.plan.featured{order:-1}.update-row{grid-template-columns:1fr auto;padding:15px}.update-date{grid-column:1}.update-status{grid-column:2;grid-row:1}.update-title{grid-column:1 / -1}
      .cta-box{padding:27px;display:block}.cta-box .btn{margin-top:19px;width:100%}.footer-grid{grid-template-columns:1fr;gap:27px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:6px}
    }
    @media(max-width:520px){
      h1{font-size:34px}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions .btn{width:100%}
      .icon-matrix{gap:8px}.matrix-cell b{font-size:13px}.matrix-cell small{font-size:11px}.node{font-size:10px;padding:6px}.overview-bar{font-size:10px}.overview-bar strong{font-size:11px}
      .section-head{margin-bottom:29px}.feature-panel h3{font-size:23px}.case-steps{display:grid}.status-inner{gap:10px;padding:10px 0}.status-item{font-size:12px}
    }
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category1 */
:root{
 --night:#1a121b;--plum:#3a2039;--plum-2:#241a25;--plum-3:#2d202d;
 --moss:#6e8d76;--moss-soft:#99ae9b;--moon:#f0e2cc;--paper:#e9ddcc;
 --ink:#382a35;--coral:#b96d67;--muted:#cdbfbd;
 --line:rgba(240,226,204,.22);--line-strong:rgba(240,226,204,.48);
 --shadow:0 20px 55px rgba(0,0,0,.26);--r-sm:12px;--r-md:16px;--r-lg:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--night);color:var(--moon);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.28;background-image:radial-gradient(rgba(240,226,204,.15) .65px,transparent .8px);background-size:8px 8px;mix-blend-mode:soft-light}
a{color:inherit;text-decoration:none} img{max-width:100%;display:block} button,input{font:inherit}.container{max-width:1200px}
.site-header{position:sticky;top:0;z-index:1030;background:rgba(58,32,57,.94);border-bottom:1px solid rgba(240,226,204,.16);transition:.25s ease}
.site-header.scrolled{background:rgba(35,23,36,.98);box-shadow:0 10px 32px rgba(0,0,0,.25)}
.navbar{min-height:80px;padding:12px 0}.navbar-brand{display:flex;align-items:center;gap:10px;color:var(--moon)!important;font-size:19px;font-weight:800;letter-spacing:.05em;white-space:nowrap}
.seal-mark{width:25px;height:25px;border:1px solid var(--moon);border-radius:50%;position:relative;display:inline-block;box-shadow:inset 0 0 0 4px rgba(110,141,118,.28)}
.seal-mark:before,.seal-mark:after{content:"";position:absolute;left:5px;right:5px;height:1px;background:var(--moss-soft);top:11px}.seal-mark:after{transform:rotate(90deg)}
.navbar-toggler{border:1px solid var(--line-strong)!important;border-radius:10px;padding:8px 10px;box-shadow:none!important}.navbar-toggler-icon{filter:invert(1)}
.navbar-nav{gap:4px}.nav-link{color:rgba(240,226,204,.76)!important;padding:10px 13px!important;font-size:14px;font-weight:650;border-bottom:1px solid transparent;transition:.2s ease}
.nav-link:hover,.nav-link.active{color:var(--moon)!important;border-bottom-color:var(--moss)}
.nav-status{display:flex;align-items:center;gap:8px;margin-left:14px}.age-badge,.state-badge,.mini-badge,.topic-tag{display:inline-flex;align-items:center;gap:6px;border:1px solid currentColor;border-radius:999px;padding:4px 9px;font-size:12px;font-weight:750;letter-spacing:.04em;line-height:1.2}
.age-badge{color:#efb7b2;background:rgba(185,109,103,.1)}.state-badge{color:#b9cfbd;border-color:rgba(110,141,118,.7);background:rgba(110,141,118,.12)}.nav-time{font-size:12px;color:var(--muted);white-space:nowrap}.nav-time strong{font-size:13px;color:var(--moon);font-variant-numeric:tabular-nums}
.btn{min-height:44px;border-radius:12px;padding:10px 18px;font-weight:750;letter-spacing:.02em;transition:transform .2s ease,background .2s ease,border .2s ease,box-shadow .2s ease;box-shadow:none!important}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(1px)}
.btn-moon{background:var(--moon);color:var(--plum);border:1px solid var(--moon)}.btn-moon:hover{background:var(--moss);border-color:var(--moss);color:#fff}.btn-outline-moon{border:1px solid var(--line-strong);color:var(--moon);background:rgba(26,18,27,.14)}.btn-outline-moon:hover{border-color:var(--moss);background:rgba(110,141,118,.16);color:var(--moon)}
.btn:focus-visible,.nav-link:focus-visible,.accordion-button:focus-visible,.filter-btn:focus-visible{outline:3px solid rgba(110,141,118,.72);outline-offset:3px}
.page-hero{position:relative;min-height:365px;padding:70px 0 62px;overflow:hidden;background:linear-gradient(130deg,#3a2039 0%,#251a28 57%,#181218 100%);border-bottom:1px solid var(--line)}
.page-hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(240,226,204,.16);border-radius:50%;right:-100px;top:-175px;box-shadow:0 0 0 34px rgba(240,226,204,.025),0 0 0 92px rgba(110,141,118,.035)}
.page-hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:85px;opacity:.35;background:linear-gradient(160deg,transparent 35%,var(--night) 36%);clip-path:polygon(0 55%,16% 25%,35% 62%,52% 19%,67% 59%,83% 31%,100% 66%,100% 100%,0 100%)}
.hero-inner{position:relative;z-index:1}.eyebrow,.section-kicker{display:flex;align-items:center;gap:8px;color:#c7d8c9;font-size:13px;font-weight:750;letter-spacing:.09em}.eyebrow:before{content:"";width:27px;height:1px;background:var(--moss)}
h1,h2,h3,p{margin-top:0}h1{max-width:760px;margin:13px 0 16px;font-size:44px;line-height:1.16;font-weight:800;letter-spacing:.02em}h2{font-size:32px;line-height:1.3;font-weight:800;margin-bottom:13px}h3{font-size:20px;line-height:1.45;font-weight:800}
.hero-copy{max-width:720px;margin:0;color:#ded1cf;font-size:16px;line-height:1.9}.hero-notes{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}.archive-seal{height:238px;margin-left:auto;max-width:360px;position:relative;display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--r-lg);background:linear-gradient(145deg,rgba(240,226,204,.09),rgba(45,32,45,.82));box-shadow:var(--shadow),inset 0 0 0 5px rgba(240,226,204,.025);overflow:hidden}
.archive-seal:before{content:"";width:145px;height:145px;border:1px solid var(--line-strong);border-radius:50%;box-shadow:0 0 0 13px rgba(110,141,118,.1),0 0 0 28px rgba(240,226,204,.035)}.archive-seal:after{content:"分类索引 · 01";position:absolute;color:var(--moon);font-weight:800;letter-spacing:.12em;font-size:13px}.seal-number{position:absolute;top:18px;right:20px;color:var(--moss-soft);font-size:12px;letter-spacing:.15em}
.section{padding:96px 0;position:relative}.section-head{max-width:760px;margin-bottom:34px}.section-head p{color:var(--muted);margin:0}.filter-bar{display:flex;gap:10px;flex-wrap:wrap;padding:14px;margin-bottom:30px;border:1px solid var(--line);border-radius:var(--r-md);background:rgba(45,32,45,.7)}
.filter-label{display:flex;align-items:center;color:var(--muted);font-size:13px;font-weight:700;padding:0 7px}.filter-btn{min-height:38px;border:1px solid var(--line);border-radius:10px;background:transparent;color:var(--moon);padding:6px 13px;font-size:13px;font-weight:700;transition:.2s ease}.filter-btn:hover,.filter-btn.active{color:#fff;background:rgba(110,141,118,.3);border-color:var(--moss)}
.archive-card{height:100%;position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--r-lg);background:linear-gradient(145deg,rgba(240,226,204,.055),transparent 45%),var(--plum-2);box-shadow:inset 0 0 0 5px rgba(240,226,204,.018);transition:.22s ease}.archive-card:hover{transform:translateY(-4px);border-color:var(--moss);background-color:#2a202b;box-shadow:var(--shadow),inset 0 0 0 5px rgba(240,226,204,.02)}
.archive-featured{min-height:350px;display:grid;grid-template-columns:38% 62%}.archive-art{min-height:220px;position:relative;overflow:hidden;background:radial-gradient(circle at 52% 36%,rgba(240,226,204,.28),transparent 10%),radial-gradient(circle at 50% 42%,rgba(110,141,118,.22),transparent 24%),linear-gradient(135deg,#4b3148,#261c2a 58%,#171217)}
.archive-art:before{content:"";position:absolute;width:185px;height:185px;border:1px solid rgba(240,226,204,.55);border-radius:50%;left:50%;top:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 14px rgba(240,226,204,.045),0 0 0 36px rgba(110,141,118,.08)}.archive-art:after{content:"档案 · 001";position:absolute;left:20px;bottom:18px;font-size:12px;letter-spacing:.15em;color:var(--moon)}
.card-body-custom{padding:28px}.topic-tag{color:var(--moss-soft);border-color:rgba(110,141,118,.64);background:rgba(110,141,118,.1)}.card-body-custom p{color:var(--muted);font-size:15px;line-height:1.8}.meta-line{display:flex;flex-wrap:wrap;gap:12px;color:#bdaeb0;font-size:12px;margin:17px 0 20px}.meta-line span:before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--moss);margin:0 7px 2px 0}
.compact-card{min-height:166px}.compact-card .card-body-custom{padding:21px 23px}.compact-card h3{font-size:18px;margin:10px 0 7px}.compact-card p{font-size:13px;margin-bottom:9px}.compact-index{position:absolute;right:18px;top:14px;font-size:12px;color:var(--moss-soft);font-weight:800}
.masonry-grid{columns:2;column-gap:24px;margin-top:24px}.masonry-item{break-inside:avoid;margin-bottom:24px}.masonry-item:nth-child(3n) .archive-art{min-height:150px;background:radial-gradient(circle at 70% 32%,rgba(240,226,204,.19),transparent 12%),linear-gradient(130deg,#37253a,#1e1720)}.masonry-item:nth-child(even) .archive-art{min-height:126px;background:radial-gradient(circle at 30% 52%,rgba(110,141,118,.25),transparent 17%),linear-gradient(130deg,#493043,#201824)}
.mini-art{height:128px}.mini-art:before{width:92px;height:92px;box-shadow:0 0 0 10px rgba(240,226,204,.04),0 0 0 21px rgba(110,141,118,.07)}.mini-art:after{font-size:11px}.browse-note{padding:31px;background:var(--paper);color:var(--ink);border:1px solid rgba(240,226,204,.65);border-radius:var(--r-lg);box-shadow:var(--shadow);position:relative;overflow:hidden}.browse-note:after{content:"阅览提示";position:absolute;right:-7px;top:12px;color:rgba(58,32,57,.12);font-size:36px;font-weight:800;writing-mode:vertical-rl}.browse-note h3{font-size:22px}.browse-note p{color:#5a4a54;margin-bottom:16px}.browse-note ul{padding-left:19px;margin:0;color:#584954;font-size:14px}.path-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--plum-3);padding:27px 0}.path-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:20px;align-items:center}.path-title{font-size:18px;font-weight:800}.path-step{position:relative;padding-left:28px;color:var(--muted);font-size:14px}.path-step:before{content:counter(step);counter-increment:step;position:absolute;left:0;top:4px;width:19px;height:19px;border:1px solid var(--moss);border-radius:50%;display:grid;place-items:center;color:var(--moss-soft);font-size:11px;line-height:1}.path-grid{counter-reset:step}
.pagination{gap:8px;margin:48px 0 0}.page-link{min-width:44px;height:44px;display:grid;place-items:center;padding:0;border:1px solid var(--line);border-radius:10px!important;background:transparent;color:var(--moon);font-weight:750;box-shadow:none!important}.page-link:hover{background:rgba(110,141,118,.17);border-color:var(--moss);color:var(--moon)}.page-item.active .page-link{background:var(--moon);border-color:var(--moon);color:var(--plum)}
.faq-section{background:var(--plum-2)}.accordion-item{border:1px solid var(--line)!important;background:var(--plum-3)!important;color:var(--moon)!important;border-radius:var(--r-sm)!important;overflow:hidden;margin-bottom:10px}.accordion-button{padding:18px 20px;background:transparent!important;color:var(--moon)!important;font-size:16px;font-weight:750;box-shadow:none!important}.accordion-button:not(.collapsed){color:var(--moon)!important;border-bottom:1px solid var(--line)}.accordion-button:after{filter:invert(1) sepia(.2)}.accordion-body{color:var(--muted);padding:0 20px 19px;font-size:15px}
footer{padding:67px 0 25px;background:#130e14;border-top:1px solid rgba(240,226,204,.13)}.footer-grid{display:grid;grid-template-columns:1.25fr .75fr 1fr;gap:48px}.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:.04em;margin-bottom:14px}.footer-copy{color:#bcaeb0;font-size:14px;line-height:1.8;margin:0}.footer-title{color:var(--moon);font-size:14px;font-weight:800;margin-bottom:12px}.footer-list{list-style:none;padding:0;margin:0}.footer-list li{margin:7px 0}.footer-list a{color:#bcaeb0;font-size:14px;transition:.2s}.footer-list a:hover{color:var(--moss-soft);padding-left:3px}.footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(240,226,204,.13);display:flex;justify-content:space-between;gap:18px;color:#978b91;font-size:12px}
@media(max-width:991.98px){.navbar-collapse{margin-top:12px;padding:14px;background:#281b29;border:1px solid var(--line);border-radius:var(--r-md)}.navbar-nav{align-items:stretch!important}.nav-link{padding:11px 5px!important}.nav-status{margin:12px 0 0;flex-wrap:wrap}.nav-cta{flex:1;text-align:center}.archive-seal{margin:32px 0 0;max-width:none}.page-hero{padding-top:54px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:span 2}.path-grid{grid-template-columns:1fr 1fr}.path-title{grid-column:span 2}.section{padding:76px 0}}
@media(max-width:767.98px){body{font-size:15px}.container{padding-left:18px;padding-right:18px}.navbar{min-height:72px}.navbar-brand{font-size:17px}.nav-time{display:none}h1{font-size:33px}h2{font-size:27px}.page-hero{min-height:auto;padding:48px 0 50px}.hero-copy{font-size:15px}.archive-featured{grid-template-columns:1fr}.archive-featured .archive-art{min-height:195px}.card-body-custom{padding:23px}.masonry-grid{columns:1;column-gap:0}.path-grid{grid-template-columns:1fr;gap:13px}.path-title{grid-column:auto}.path-step{padding-left:29px}.section{padding:64px 0}.filter-label{width:100%}.footer-grid{grid-template-columns:1fr;gap:28px}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{margin-top:32px;display:block;line-height:2}.footer-bottom span{display:block}.pagination{gap:5px}.page-link{min-width:40px;height:40px}.hide-mobile{display:none}}
@media(max-width:420px){.age-badge{font-size:11px}.nav-status{gap:6px}.btn{padding:10px 14px}.filter-btn{padding:6px 10px}.archive-seal{height:210px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}