/* roulang page: index */
:root{
      --paper:#f8f3e9;
      --paper-strong:#fffaf0;
      --ink:#20201d;
      --ink-soft:#3d3b35;
      --muted:#777164;
      --line:#e3dac8;
      --line-strong:#d4c8b4;
      --mint:#36c6a1;
      --mint-dark:#139578;
      --mint-soft:#e7f8f2;
      --amber:#f4a63a;
      --amber-soft:#fff0d7;
      --card:#fffdf7;
      --shadow:0 14px 38px rgba(50,42,28,.08);
      --shadow-hover:0 20px 48px rgba(45,38,25,.14);
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --container:1180px;
      --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Heiti SC",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 8%, rgba(54,198,161,.11), transparent 28%),
        radial-gradient(circle at 88% 18%, rgba(244,166,58,.12), transparent 24%),
        linear-gradient(180deg,var(--paper) 0%,#fbf7ee 48%,#f6efe2 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.35;
      background-image:
        linear-gradient(rgba(32,32,29,.035) 1px, transparent 1px),
        linear-gradient(90deg,rgba(32,32,29,.035) 1px, transparent 1px);
      background-size:34px 34px;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease,border-color .22s ease,transform .22s ease}
    a:hover,a:focus{color:var(--mint-dark)}
    img{max-width:100%;height:auto;display:block}
    button,input,select,textarea{font-family:inherit}
    button,.button{transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease}
    :focus-visible{outline:3px solid rgba(54,198,161,.36);outline-offset:3px}
    .site-wrap{min-height:100vh}
    .page-container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .section{
      padding:76px 0;
      position:relative;
    }
    .section.compact{padding:52px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-size:14px;
      font-weight:700;
      color:var(--mint-dark);
      background:var(--mint-soft);
      border:1px solid rgba(54,198,161,.28);
      border-radius:999px;
      padding:6px 12px;
      margin-bottom:12px;
    }
    .section-kicker:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--mint);
      box-shadow:0 0 0 5px rgba(54,198,161,.12);
    }
    .section-title{
      margin:0;
      font-size:clamp(28px,3.2vw,38px);
      line-height:1.2;
      letter-spacing:-.02em;
      color:var(--ink);
      font-weight:800;
    }
    .section-desc{
      max-width:650px;
      color:var(--muted);
      font-size:16px;
      margin:10px 0 0;
      line-height:1.85;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 11px;
      border-radius:999px;
      font-size:13px;
      line-height:1;
      font-weight:700;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .badge.mint{background:var(--mint-soft);color:var(--mint-dark);border-color:rgba(54,198,161,.24)}
    .badge.amber{background:var(--amber-soft);color:#9b6313;border-color:rgba(244,166,58,.28)}
    .badge.gray{background:#f1eadf;color:var(--muted);border-color:var(--line)}
    .badge.dark{background:var(--ink);color:var(--paper-strong)}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:46px;
      padding:13px 19px;
      border-radius:999px;
      font-weight:800;
      font-size:15px;
      border:1px solid var(--ink);
      cursor:pointer;
      line-height:1.1;
    }
    .btn-primary{
      background:var(--ink);
      color:var(--paper-strong);
      box-shadow:0 10px 24px rgba(32,32,29,.18);
    }
    .btn-primary:hover,.btn-primary:focus{
      background:var(--mint-dark);
      border-color:var(--mint-dark);
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 14px 30px rgba(19,149,120,.2);
    }
    .btn-secondary{
      background:rgba(255,253,247,.7);
      color:var(--ink);
      border-color:var(--line-strong);
    }
    .btn-secondary:hover,.btn-secondary:focus{
      background:var(--mint-soft);
      border-color:rgba(54,198,161,.45);
      color:var(--ink);
      transform:translateY(-2px);
    }
    .btn:active{
      transform:translateY(1px) scale(.99);
      box-shadow:none;
    }
    .button[disabled],button[disabled]{
      opacity:.55;
      cursor:not-allowed;
      transform:none;
      box-shadow:none;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      padding:12px 0;
      backdrop-filter:saturate(1.25) blur(18px);
      background:rgba(248,243,233,.84);
      border-bottom:1px solid rgba(227,218,200,.82);
    }
    .toolbar{
      width:min(var(--container), calc(100% - 28px));
      margin:0 auto;
      min-height:66px;
      display:flex;
      align-items:center;
      gap:16px;
      border:1px solid rgba(212,200,180,.82);
      border-radius:24px;
      background:rgba(255,253,247,.88);
      box-shadow:0 8px 28px rgba(52,43,29,.06);
      padding:10px 12px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:11px;
      min-width:max-content;
      font-weight:900;
      color:var(--ink);
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      border:1px solid rgba(32,32,29,.14);
      background:
        linear-gradient(90deg, transparent 0 18%, rgba(255,255,255,.35) 18% 23%, transparent 23% 38%, rgba(255,255,255,.35) 38% 43%, transparent 43% 58%, rgba(255,255,255,.35) 58% 63%, transparent 63%),
        linear-gradient(135deg,var(--ink) 0%,#3c3a34 62%,var(--mint-dark) 100%);
      position:relative;
      box-shadow:inset 0 -6px 12px rgba(0,0,0,.18);
      flex:0 0 auto;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      left:15px;
      top:12px;
      width:12px;
      height:16px;
      background:var(--paper-strong);
      clip-path:polygon(0 0,100% 50%,0 100%);
      opacity:.92;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.12;
    }
    .brand-text strong{font-size:16px}
    .brand-text span{font-size:12px;color:var(--muted);font-weight:700;margin-top:3px}
    .nav-center{
      flex:1;
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:9px 14px;
      border-radius:999px;
      font-size:14px;
      font-weight:800;
      color:var(--ink-soft);
      border:1px solid transparent;
    }
    .nav-link:hover,.nav-link:focus,.nav-link.active{
      background:var(--mint-soft);
      color:var(--ink);
      border-color:rgba(54,198,161,.28);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:10px;
      min-width:max-content;
    }
    .status-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      border-radius:999px;
      border:1px solid var(--line);
      background:#fffaf1;
      padding:9px 12px;
      font-size:13px;
      font-weight:800;
      color:var(--ink-soft);
    }
    .status-dot{
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--mint);
      box-shadow:0 0 0 6px rgba(54,198,161,.13);
    }
    .bell{
      width:40px;
      height:40px;
      border-radius:14px;
      border:1px solid var(--line);
      background:#fffaf1;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      position:relative;
      color:var(--ink);
    }
    .bell:before{content:"🔔";font-size:16px}
    .bell:after{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--amber);
      position:absolute;
      top:8px;
      right:9px;
      border:2px solid #fffaf1;
    }
    .mobile-title-bar{
      display:none;
      width:min(var(--container), calc(100% - 28px));
      margin:0 auto;
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(255,253,247,.94);
      color:var(--ink);
      padding:8px 10px;
      box-shadow:0 8px 24px rgba(52,43,29,.06);
    }
    .menu-icon:after{background:var(--ink);box-shadow:0 7px 0 var(--ink),0 14px 0 var(--ink)}
    .mobile-menu-panel{
      display:none;
      width:min(var(--container), calc(100% - 28px));
      margin:8px auto 0;
      background:var(--card);
      border:1px solid var(--line);
      border-radius:18px;
      padding:10px;
      box-shadow:var(--shadow);
    }
    .hero{
      padding:50px 0 66px;
    }
    .hero-stage{
      border:1px solid var(--line-strong);
      border-radius:34px;
      background:
        linear-gradient(90deg, rgba(255,253,247,.94), rgba(255,250,240,.86)),
        repeating-linear-gradient(90deg, rgba(32,32,29,.055) 0 1px, transparent 1px 26px);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-stage:before{
      content:"";
      position:absolute;
      inset:18px;
      border:1px dashed rgba(32,32,29,.08);
      border-radius:26px;
      pointer-events:none;
    }
    .hero-ribbon{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:16px 22px;
      border-bottom:1px solid var(--line);
      background:rgba(248,243,233,.62);
      position:relative;
      z-index:1;
    }
    .hero-ribbon strong{
      display:flex;
      align-items:center;
      gap:10px;
      font-size:14px;
      color:var(--ink-soft);
    }
    .hero-ribbon strong:before{
      content:"";
      width:11px;
      height:11px;
      border-radius:50%;
      background:var(--mint);
      box-shadow:0 0 0 6px rgba(54,198,161,.12);
    }
    .hero-main{
      position:relative;
      z-index:1;
      padding:44px;
    }
    .hero-title{
      max-width:900px;
      margin:0;
      font-size:clamp(32px,5vw,54px);
      line-height:1.14;
      font-weight:900;
      letter-spacing:-.045em;
      color:var(--ink);
    }
    .hero-title .mark{
      color:var(--mint-dark);
      position:relative;
      white-space:nowrap;
    }
    .hero-title .mark:after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:4px;
      height:10px;
      background:rgba(54,198,161,.18);
      z-index:-1;
      border-radius:999px;
    }
    .hero-intro{
      max-width:790px;
      margin:20px 0 0;
      font-size:18px;
      color:var(--ink-soft);
      line-height:1.9;
    }
    .group-panel{
      margin-top:28px;
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:18px;
      align-items:stretch;
    }
    .group-card{
      border:1px solid var(--line);
      border-radius:24px;
      background:#fffdf7;
      padding:20px;
      box-shadow:0 10px 28px rgba(52,43,29,.06);
    }
    .join-line{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:12px;
      margin-bottom:18px;
    }
    .join-avatars{
      display:flex;
      align-items:center;
    }
    .avatar-dot{
      width:34px;
      height:34px;
      border-radius:50%;
      border:2px solid #fffdf7;
      margin-left:-8px;
      background:linear-gradient(135deg,var(--mint-soft),var(--amber-soft));
      display:grid;
      place-items:center;
      font-size:13px;
      font-weight:900;
      color:var(--ink);
    }
    .avatar-dot:first-child{margin-left:0}
    .progress-wrap{
      background:#f2eadf;
      border-radius:999px;
      height:12px;
      overflow:hidden;
      border:1px solid var(--line);
    }
    .progress-bar{
      width:72%;
      height:100%;
      background:linear-gradient(90deg,var(--mint),var(--amber));
      border-radius:999px;
    }
    .hero-ctas{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:18px;
    }
    .mini-metrics{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
      margin-top:18px;
    }
    .mini-metric{
      border:1px solid var(--line);
      border-radius:18px;
      background:#fbf4e7;
      padding:12px;
    }
    .mini-metric b{display:block;font-size:22px;line-height:1.1;color:var(--ink)}
    .mini-metric span{display:block;margin-top:5px;font-size:13px;color:var(--muted);font-weight:700}
    .column-preview{
      position:relative;
      min-height:255px;
      overflow:hidden;
    }
    .cover-placeholder{
      height:116px;
      border-radius:18px;
      border:1px solid rgba(32,32,29,.08);
      background:
        linear-gradient(90deg, rgba(32,32,29,.12) 0 8px, transparent 8px 16px),
        radial-gradient(circle at 72% 34%, rgba(54,198,161,.42), transparent 20%),
        linear-gradient(135deg,#2b2a25,#555047 52%,#e9d1a0);
      position:relative;
      overflow:hidden;
    }
    .cover-placeholder:after{
      content:"";
      position:absolute;
      inset:0;
      background:repeating-linear-gradient(90deg, transparent 0 22px, rgba(255,255,255,.16) 22px 25px);
    }
    .preview-title{
      margin:16px 0 8px;
      font-size:20px;
      font-weight:900;
      line-height:1.35;
    }
    .line-skeleton{
      height:9px;
      border-radius:999px;
      background:#ece2d2;
      margin:9px 0;
    }
    .line-skeleton.short{width:66%}
    .trust-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .service-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .tool-card{
      display:grid;
      grid-template-columns:58px 1fr;
      gap:16px;
      padding:20px;
      border-radius:24px;
      border:1px solid var(--line);
      background:rgba(255,253,247,.9);
      box-shadow:0 10px 28px rgba(52,43,29,.045);
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .tool-card:hover{
      transform:translateY(-4px);
      border-color:rgba(54,198,161,.55);
      box-shadow:var(--shadow-hover);
    }
    .tool-icon{
      width:58px;
      height:58px;
      border-radius:18px;
      background:var(--mint-soft);
      border:1px solid rgba(54,198,161,.28);
      display:grid;
      place-items:center;
      font-size:25px;
    }
    .tool-card:nth-child(2) .tool-icon,.tool-card:nth-child(4) .tool-icon{background:var(--amber-soft);border-color:rgba(244,166,58,.28)}
    .tool-card h3{
      margin:0 0 6px;
      font-size:20px;
      line-height:1.35;
      font-weight:900;
    }
    .tool-card p{
      margin:0;
      color:var(--muted);
      font-size:15px;
      line-height:1.75;
    }
    .text-link{
      display:inline-flex;
      margin-top:12px;
      align-items:center;
      gap:6px;
      color:var(--mint-dark);
      font-weight:900;
      font-size:14px;
    }
    .text-link:hover{background:rgba(54,198,161,.12);border-radius:999px;padding-left:8px;padding-right:8px}
    .data-band{
      background:var(--ink);
      border-radius:32px;
      padding:28px;
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .data-band:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 18% 20%, rgba(54,198,161,.18), transparent 25%),
        repeating-linear-gradient(90deg, rgba(255,255,255,.045) 0 1px, transparent 1px 28px);
      pointer-events:none;
    }
    .data-band .section-kicker{position:relative;background:rgba(54,198,161,.14);color:#a9f5e3;border-color:rgba(54,198,161,.28)}
    .data-band .section-title{position:relative;color:var(--paper-strong)}
    .data-band .section-desc{position:relative;color:#c8c0b1}
    .data-grid{
      position:relative;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      margin-top:24px;
    }
    .data-card{
      border-radius:22px;
      background:var(--paper-strong);
      border:1px solid rgba(255,255,255,.12);
      padding:18px;
    }
    .data-num{
      display:flex;
      align-items:baseline;
      gap:5px;
      font-weight:900;
      color:var(--mint-dark);
      margin-bottom:8px;
    }
    .data-num b{font-size:34px;line-height:1}
    .data-num span{font-size:15px;color:var(--muted);font-weight:800}
    .data-card p{margin:0;color:var(--ink-soft);font-size:14px;line-height:1.65}
    .data-track{
      margin-top:14px;
      height:6px;
      background:#e8dfcf;
      border-radius:999px;
      overflow:hidden;
    }
    .data-track i{
      display:block;
      height:100%;
      width:68%;
      background:var(--mint);
      border-radius:999px;
    }
    .data-card:nth-child(2) .data-track i{width:54%;background:var(--amber)}
    .data-card:nth-child(3) .data-track i{width:82%}
    .data-card:nth-child(4) .data-track i{width:76%;background:linear-gradient(90deg,var(--mint),var(--amber))}
    .case-layout{
      display:grid;
      grid-template-columns:5fr 7fr;
      gap:22px;
      align-items:start;
    }
    .feature-article,.article-list-card,.empty-card,.quote-card,.path-card,.contact-card,.notice-card{
      border:1px solid var(--line);
      background:rgba(255,253,247,.94);
      border-radius:26px;
      box-shadow:0 10px 28px rgba(52,43,29,.055);
    }
    .feature-article{
      padding:20px;
      position:sticky;
      top:112px;
      overflow:hidden;
    }
    .feature-article:hover,.article-list-card:hover{
      border-color:rgba(54,198,161,.5);
      box-shadow:var(--shadow-hover);
      transform:translateY(-3px);
    }
    .article-thumb{
      height:176px;
      border-radius:22px;
      border:1px solid rgba(32,32,29,.08);
      background:
        linear-gradient(90deg, rgba(32,32,29,.14) 0 9px, transparent 9px 18px),
        radial-gradient(circle at 28% 35%, rgba(244,166,58,.34), transparent 18%),
        radial-gradient(circle at 72% 58%, rgba(54,198,161,.36), transparent 22%),
        linear-gradient(135deg,#36342e,#f7e8cd);
      overflow:hidden;
      position:relative;
    }
    .article-thumb.small{
      width:108px;
      height:88px;
      flex:0 0 108px;
      border-radius:18px;
    }
    .article-thumb:after{
      content:"";
      position:absolute;
      inset:0;
      background:repeating-linear-gradient(90deg, transparent 0 24px, rgba(255,255,255,.16) 24px 27px);
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      margin-top:14px;
      color:var(--muted);
      font-size:13px;
      font-weight:700;
    }
    .feature-article h3{
      margin:14px 0 9px;
      font-size:23px;
      line-height:1.35;
      font-weight:900;
    }
    .feature-article p,.article-list-card p{
      margin:0;
      color:var(--muted);
      line-height:1.78;
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .article-list{
      display:grid;
      gap:14px;
    }
    .article-list-card{
      display:flex;
      gap:15px;
      padding:15px;
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .article-list-card h3{
      margin:0 0 7px;
      font-size:18px;
      line-height:1.42;
      font-weight:900;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .article-list-card p{
      font-size:14px;
      -webkit-line-clamp:2;
    }
    .empty-card{
      padding:32px;
      text-align:center;
    }
    .empty-illu{
      width:86px;
      height:86px;
      margin:0 auto 16px;
      border-radius:28px;
      background:
        linear-gradient(90deg,rgba(32,32,29,.09) 0 8px,transparent 8px 18px),
        var(--mint-soft);
      border:1px solid rgba(54,198,161,.28);
      position:relative;
    }
    .empty-illu:after{
      content:"";
      position:absolute;
      left:31px;
      top:24px;
      width:25px;
      height:34px;
      border-radius:8px;
      border:2px solid var(--mint-dark);
      background:rgba(255,255,255,.55);
    }
    .solution-shell{
      display:grid;
      grid-template-columns:1fr;
      gap:20px;
    }
    .steps{
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:12px;
      position:relative;
    }
    .step{
      border:1px solid var(--line);
      background:var(--card);
      border-radius:22px;
      padding:18px;
      position:relative;
      box-shadow:0 8px 22px rgba(52,43,29,.045);
    }
    .step:after{
      content:"";
      position:absolute;
      top:32px;
      right:-13px;
      width:14px;
      height:2px;
      background:var(--line-strong);
    }
    .step:last-child:after{display:none}
    .step-num{
      width:31px;
      height:31px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:var(--ink);
      color:var(--paper-strong);
      font-weight:900;
      margin-bottom:13px;
      font-size:14px;
    }
    .step h3{
      margin:0 0 7px;
      font-size:17px;
      font-weight:900;
      line-height:1.35;
    }
    .step p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
    }
    .safe-note{
      border:1px solid rgba(244,166,58,.3);
      background:var(--amber-soft);
      border-radius:24px;
      padding:18px 20px;
      color:#6d4b1d;
      display:flex;
      gap:13px;
      align-items:flex-start;
      line-height:1.8;
    }
    .safe-note strong{color:#5d3b0b}
    .bubble-wall{
      display:grid;
      grid-template-columns:1fr 1.15fr .95fr;
      gap:16px;
      align-items:stretch;
    }
    .quote-card{
      padding:22px;
      min-height:170px;
      position:relative;
    }
    .quote-card:before{
      content:"“";
      position:absolute;
      top:6px;
      right:18px;
      font-size:68px;
      color:rgba(54,198,161,.16);
      line-height:1;
      font-weight:900;
    }
    .quote-card p{
      margin:0;
      color:var(--ink-soft);
      line-height:1.85;
      position:relative;
    }
    .quote-card .who{
      margin-top:16px;
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:14px;
      font-weight:800;
    }
    .who-dot{
      width:30px;
      height:30px;
      border-radius:50%;
      background:var(--mint-soft);
      border:1px solid rgba(54,198,161,.28);
      display:grid;
      place-items:center;
      color:var(--mint-dark);
    }
    .faq-list.accordion{
      background:transparent;
      border:none;
    }
    .faq-list .accordion-item{
      margin-bottom:12px;
      border:1px solid var(--line);
      border-radius:20px;
      overflow:hidden;
      background:var(--card);
      box-shadow:0 8px 22px rgba(52,43,29,.04);
    }
    .faq-list .accordion-title{
      border:none;
      color:var(--ink);
      padding:20px 48px 20px 56px;
      font-size:17px;
      font-weight:900;
      line-height:1.45;
      position:relative;
      background:var(--card);
    }
    .faq-list .accordion-title:before{
      right:22px;
      margin-top:-9px;
      font-size:24px;
      color:var(--mint-dark);
    }
    .faq-list .accordion-title:after{
      content:"?";
      position:absolute;
      left:20px;
      top:18px;
      width:24px;
      height:24px;
      border-radius:50%;
      background:var(--mint-soft);
      color:var(--mint-dark);
      display:grid;
      place-items:center;
      font-size:14px;
      font-weight:900;
    }
    .faq-list .is-active .accordion-title{
      background:var(--mint-soft);
      color:var(--ink);
    }
    .faq-list .accordion-content{
      border:none;
      border-top:1px solid rgba(54,198,161,.18);
      background:#fbfff9;
      padding:18px 22px 20px 56px;
      color:var(--ink-soft);
      line-height:1.8;
    }
    .faq-list ul{margin-bottom:0}
    .contact-layout{
      display:grid;
      grid-template-columns:7fr 5fr;
      gap:22px;
      align-items:start;
    }
    .contact-card{
      padding:24px;
    }
    .field-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .form-field{margin-bottom:14px}
    .form-field label{
      display:block;
      font-weight:900;
      color:var(--ink);
      margin-bottom:8px;
      font-size:14px;
    }
    .form-field input,.form-field select,.form-field textarea{
      width:100%;
      border:1px solid var(--line-strong);
      border-radius:16px;
      background:#fffaf1;
      min-height:48px;
      padding:12px 14px;
      color:var(--ink);
      box-shadow:none;
      margin:0;
    }
    .form-field textarea{min-height:128px;resize:vertical}
    .form-field input:focus,.form-field select:focus,.form-field textarea:focus{
      border-color:var(--mint);
      box-shadow:0 0 0 4px rgba(54,198,161,.16);
      background:#fffdf7;
    }
    .side-notes{
      display:grid;
      gap:14px;
    }
    .notice-card{
      padding:20px;
    }
    .notice-card h3{
      margin:0 0 8px;
      font-size:18px;
      font-weight:900;
    }
    .notice-card p{
      margin:0;
      color:var(--muted);
      line-height:1.8;
      font-size:15px;
    }
    .notice-icon{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:var(--mint-soft);
      border:1px solid rgba(54,198,161,.25);
      margin-bottom:12px;
      font-size:21px;
    }
    .subscribe-box{
      border-radius:30px;
      border:1px solid var(--line-strong);
      background:
        radial-gradient(circle at 15% 25%, rgba(54,198,161,.16), transparent 26%),
        linear-gradient(135deg,#fffdf7,#f7ecd8);
      box-shadow:var(--shadow);
      padding:30px;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:24px;
    }
    .subscribe-box h2{
      margin:0;
      font-size:28px;
      font-weight:900;
      line-height:1.25;
    }
    .subscribe-box p{
      margin:10px 0 0;
      max-width:690px;
      color:var(--muted);
      line-height:1.8;
    }
    .site-footer{
      border-top:1px solid var(--line);
      background:rgba(255,250,240,.72);
      padding:42px 0 30px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .8fr .8fr;
      gap:26px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      margin-bottom:12px;
    }
    .footer-text{
      color:var(--muted);
      max-width:520px;
      line-height:1.85;
      margin:0;
    }
    .footer-title{
      font-size:15px;
      font-weight:900;
      margin:0 0 12px;
      color:var(--ink);
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:8px;
    }
    .footer-links a{
      color:var(--muted);
      font-weight:700;
      font-size:14px;
    }
    .footer-links a:hover{
      color:var(--mint-dark);
      background:rgba(54,198,161,.12);
      border-radius:999px;
      padding:4px 8px;
      margin-left:-8px;
    }
    .copyright{
      margin-top:28px;
      padding-top:18px;
      border-top:1px solid var(--line);
      color:var(--muted);
      font-size:13px;
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:12px;
    }
    @media (max-width:1024px){
      .toolbar{gap:10px}
      .brand-text strong{font-size:14px}
      .status-pill{display:none}
      .hero-main{padding:34px}
      .group-panel,.case-layout,.contact-layout{grid-template-columns:1fr}
      .feature-article{position:relative;top:auto}
      .data-grid{grid-template-columns:repeat(2,1fr)}
      .steps{grid-template-columns:1fr}
      .step:after{
        top:auto;
        left:33px;
        bottom:-13px;
        width:2px;
        height:14px;
      }
      .bubble-wall{grid-template-columns:1fr 1fr}
      .subscribe-box{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:768px){
      .site-header{padding:8px 0}
      .toolbar{display:none}
      .mobile-title-bar{display:flex;align-items:center;justify-content:space-between}
      .mobile-menu-panel.is-open{display:block}
      .mobile-menu-panel .nav-link,.mobile-menu-panel .btn{width:100%;justify-content:center;margin:4px 0}
      .page-container{width:calc(100% - 36px)}
      .section{padding:56px 0}
      .section-head{display:block}
      .hero{padding:24px 0 48px}
      .hero-ribbon{display:block}
      .hero-ribbon .badge{margin-top:10px}
      .hero-main{padding:26px 20px}
      .hero-intro{font-size:16px}
      .group-panel{gap:14px}
      .hero-ctas{display:grid}
      .btn{width:100%}
      .mini-metrics{grid-template-columns:1fr}
      .service-grid,.field-grid,.footer-grid,.bubble-wall{grid-template-columns:1fr}
      .tool-card{grid-template-columns:50px 1fr;padding:18px}
      .tool-icon{width:50px;height:50px;border-radius:16px}
      .data-band{padding:22px 16px;border-radius:26px}
      .article-list-card{flex-direction:column}
      .article-thumb.small{width:100%;height:130px}
      .faq-list .accordion-title{padding:18px 44px 18px 48px;font-size:16px}
      .faq-list .accordion-title:after{left:16px}
      .faq-list .accordion-content{padding:16px 18px 18px 48px}
      .subscribe-box{padding:24px 20px;border-radius:24px}
      .copyright{display:block}
    }
    @media (max-width:520px){
      .brand-text span{display:none}
      .mobile-title-bar .brand-mark{width:38px;height:38px}
      .hero-title{font-size:32px}
      .section-title{font-size:27px}
      .cover-placeholder{height:98px}
      .data-grid{grid-template-columns:1fr}
      .safe-note{display:block}
      .safe-note span{display:block;margin-bottom:8px}
    }

/* roulang page: article */
:root{
      --paper:#f8f3e9;
      --paper-strong:#fffaf0;
      --ink:#20201d;
      --ink-soft:#3d3b35;
      --muted:#777164;
      --line:#e3dac8;
      --line-strong:#d4c8b4;
      --mint:#36c6a1;
      --mint-dark:#139578;
      --mint-soft:#e7f8f2;
      --amber:#f4a63a;
      --amber-soft:#fff0d7;
      --card:#fffdf7;
      --danger-soft:#fff1e9;
      --shadow:0 14px 38px rgba(50,42,28,.08);
      --shadow-hover:0 20px 48px rgba(45,38,25,.14);
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --container:1180px;
      --read:840px;
      --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Heiti SC",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 8%, rgba(54,198,161,.11), transparent 28%),
        radial-gradient(circle at 88% 18%, rgba(244,166,58,.12), transparent 24%),
        linear-gradient(180deg,var(--paper) 0%,#fbf7ee 48%,#f6efe2 100%);
      line-height:1.75;
      overflow-x:hidden;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.35;
      background-image:
        linear-gradient(rgba(32,32,29,.035) 1px, transparent 1px),
        linear-gradient(90deg,rgba(32,32,29,.035) 1px, transparent 1px);
      background-size:34px 34px;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease,border-color .22s ease,transform .22s ease}
    a:hover,a:focus{color:var(--mint-dark)}
    img{max-width:100%;height:auto;display:block}
    button,input,select,textarea{font-family:inherit}
    button,.button{transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease}
    ::selection{background:rgba(54,198,161,.22);color:var(--ink)}
    .page-container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .read-container{
      width:min(var(--read), calc(100% - 40px));
      margin:0 auto;
    }
    .section{
      padding:68px 0;
      position:relative;
    }
    .section.compact{padding:44px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-size:14px;
      font-weight:700;
      color:var(--mint-dark);
      background:var(--mint-soft);
      border:1px solid rgba(54,198,161,.28);
      border-radius:999px;
      padding:6px 12px;
      margin-bottom:12px;
    }
    .section-kicker:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--mint);
      box-shadow:0 0 0 5px rgba(54,198,161,.12);
    }
    .section-title{
      margin:0;
      font-size:clamp(28px,3.2vw,38px);
      line-height:1.2;
      letter-spacing:-.02em;
      color:var(--ink);
      font-weight:800;
    }
    .section-desc{
      max-width:650px;
      color:var(--muted);
      font-size:16px;
      margin:10px 0 0;
      line-height:1.85;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 11px;
      border-radius:999px;
      font-size:13px;
      line-height:1;
      font-weight:700;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .badge.mint{background:var(--mint-soft);color:var(--mint-dark);border-color:rgba(54,198,161,.24)}
    .badge.amber{background:var(--amber-soft);color:#9b6313;border-color:rgba(244,166,58,.28)}
    .badge.gray{background:#f1eadf;color:var(--muted);border-color:var(--line)}
    .badge.dark{background:var(--ink);color:var(--paper-strong)}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:46px;
      padding:13px 19px;
      border-radius:999px;
      font-weight:800;
      font-size:15px;
      border:1px solid var(--ink);
      cursor:pointer;
      line-height:1.1;
    }
    .btn-primary{
      background:var(--ink);
      color:var(--paper-strong);
      box-shadow:0 10px 24px rgba(32,32,29,.18);
    }
    .btn-primary:hover,.btn-primary:focus{
      background:var(--mint-dark);
      border-color:var(--mint-dark);
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 14px 30px rgba(19,149,120,.2);
    }
    .btn-secondary{
      background:rgba(255,253,247,.7);
      color:var(--ink);
      border-color:var(--line-strong);
    }
    .btn-secondary:hover,.btn-secondary:focus{
      background:var(--mint-soft);
      border-color:rgba(54,198,161,.45);
      color:var(--ink);
      transform:translateY(-2px);
    }
    .btn:active{
      transform:translateY(1px) scale(.99);
      box-shadow:none;
    }
    .button[disabled],button[disabled]{
      opacity:.55;
      cursor:not-allowed;
      transform:none;
      box-shadow:none;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      padding:12px 0;
      backdrop-filter:saturate(1.25) blur(18px);
      background:rgba(248,243,233,.84);
      border-bottom:1px solid rgba(227,218,200,.82);
    }
    .toolbar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      min-height:58px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:11px;
      min-width:max-content;
      font-weight:900;
      color:var(--ink);
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      border:1px solid rgba(32,32,29,.14);
      background:
        linear-gradient(90deg, transparent 0 18%, rgba(255,255,255,.35) 18% 23%, transparent 23% 38%, rgba(255,255,255,.35) 38% 43%, transparent 43% 58%, rgba(255,255,255,.35) 58% 63%, transparent 63%),
        linear-gradient(135deg,var(--ink) 0%,#3c3a34 62%,var(--mint-dark) 100%);
      position:relative;
      box-shadow:inset 0 -6px 12px rgba(0,0,0,.18);
      flex:0 0 auto;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      left:15px;
      top:12px;
      width:12px;
      height:16px;
      background:var(--paper-strong);
      clip-path:polygon(0 0,100% 50%,0 100%);
      opacity:.92;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.12;
    }
    .brand-text strong{font-size:16px}
    .brand-text span{font-size:12px;color:var(--muted);font-weight:700;margin-top:3px}
    .nav-center{
      flex:1;
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:9px 14px;
      border-radius:999px;
      color:var(--ink-soft);
      font-size:14px;
      font-weight:800;
      border:1px solid transparent;
    }
    .nav-link:hover,.nav-link:focus{
      color:var(--ink);
      background:var(--mint-soft);
      border-color:rgba(54,198,161,.28);
      outline:none;
    }
    .nav-link.active{
      color:var(--mint-dark);
      background:rgba(231,248,242,.86);
      border-color:rgba(54,198,161,.34);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:10px;
      min-width:max-content;
    }
    .status-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,253,247,.72);
      border:1px solid var(--line);
      color:var(--muted);
      font-size:13px;
      font-weight:800;
    }
    .status-dot{
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--mint);
      box-shadow:0 0 0 5px rgba(54,198,161,.14);
    }
    .notice-btn{
      width:40px;
      height:40px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:50%;
      border:1px solid var(--line);
      background:rgba(255,253,247,.72);
      color:var(--ink);
      position:relative;
    }
    .notice-btn:before{
      content:"";
      width:14px;
      height:16px;
      border:2px solid currentColor;
      border-bottom:none;
      border-radius:10px 10px 4px 4px;
      transform:translateY(1px);
    }
    .notice-btn:after{
      content:"";
      position:absolute;
      right:10px;
      top:9px;
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--amber);
      box-shadow:0 0 0 3px rgba(244,166,58,.18);
    }
    .notice-btn:hover,.notice-btn:focus{
      background:var(--amber-soft);
      border-color:rgba(244,166,58,.36);
      color:var(--ink);
      outline:none;
      transform:translateY(-1px);
    }
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border-radius:14px;
      border:1px solid var(--line);
      background:var(--card);
      position:relative;
    }
    .menu-toggle span,.menu-toggle:before,.menu-toggle:after{
      content:"";
      position:absolute;
      left:11px;
      right:11px;
      height:2px;
      border-radius:2px;
      background:var(--ink);
    }
    .menu-toggle span{top:20px}
    .menu-toggle:before{top:14px}
    .menu-toggle:after{top:26px}

    .article-hero{
      padding:56px 0 28px;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      color:var(--muted);
      font-size:14px;
      margin:0 0 20px;
    }
    .breadcrumb a{
      color:var(--ink-soft);
      font-weight:800;
      padding:5px 9px;
      border-radius:999px;
      background:rgba(255,253,247,.62);
      border:1px solid var(--line);
    }
    .breadcrumb a:hover,.breadcrumb a:focus{
      background:var(--mint-soft);
      border-color:rgba(54,198,161,.32);
      color:var(--mint-dark);
    }
    .breadcrumb .sep{color:var(--line-strong)}
    .article-header-card{
      background:rgba(255,253,247,.82);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .article-header-card:before{
      content:"";
      position:absolute;
      inset:0 0 auto 0;
      height:6px;
      background:linear-gradient(90deg,var(--mint),rgba(54,198,161,.18),var(--amber));
      opacity:.95;
    }
    .article-head-inner{
      padding:34px;
    }
    .article-kicker-row{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      margin-bottom:16px;
    }
    .article-title{
      margin:0;
      color:var(--ink);
      font-weight:900;
      letter-spacing:-.035em;
      line-height:1.18;
      font-size:clamp(30px,4.2vw,50px);
      max-width:980px;
      word-break:break-word;
    }
    .article-summary{
      margin:18px 0 0;
      max-width:860px;
      color:var(--muted);
      font-size:17px;
      line-height:1.9;
    }
    .meta-line{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px 12px;
      margin-top:22px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
    }
    .meta-item{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 10px;
      border-radius:999px;
      background:#f3ecdf;
      border:1px solid rgba(227,218,200,.88);
    }
    .meta-item:before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--mint);
    }
    .cover-panel{
      margin-top:28px;
      aspect-ratio:21/9;
      min-height:260px;
      border-radius:24px;
      border:1px solid var(--line);
      overflow:hidden;
      position:relative;
      background:
        linear-gradient(90deg, rgba(32,32,29,.08) 0 8%, transparent 8% 16%, rgba(32,32,29,.08) 16% 24%, transparent 24% 32%, rgba(32,32,29,.08) 32% 40%, transparent 40% 48%, rgba(32,32,29,.08) 48% 56%, transparent 56% 64%, rgba(32,32,29,.08) 64% 72%, transparent 72% 80%, rgba(32,32,29,.08) 80% 88%, transparent 88%),
        radial-gradient(circle at 28% 42%, rgba(54,198,161,.28), transparent 32%),
        radial-gradient(circle at 76% 30%, rgba(244,166,58,.22), transparent 28%),
        linear-gradient(135deg,#2c2b27 0%,#3d3b35 48%,#1d5e52 100%);
      box-shadow:inset 0 -30px 60px rgba(0,0,0,.24);
    }
    .cover-panel:before{
      content:"";
      position:absolute;
      left:34px;
      top:34px;
      width:70px;
      height:70px;
      border-radius:22px;
      border:1px solid rgba(255,250,240,.32);
      background:rgba(255,250,240,.12);
      backdrop-filter:blur(2px);
    }
    .cover-panel:after{
      content:"";
      position:absolute;
      left:61px;
      top:54px;
      width:21px;
      height:28px;
      background:var(--paper-strong);
      clip-path:polygon(0 0,100% 50%,0 100%);
      opacity:.88;
    }
    .cover-caption{
      position:absolute;
      left:34px;
      right:34px;
      bottom:30px;
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:20px;
      color:var(--paper-strong);
    }
    .cover-caption strong{
      display:block;
      font-size:24px;
      line-height:1.25;
      max-width:620px;
    }
    .cover-caption span{
      display:inline-flex;
      padding:7px 12px;
      border-radius:999px;
      border:1px solid rgba(255,250,240,.28);
      background:rgba(255,250,240,.12);
      font-size:13px;
      font-weight:800;
      white-space:nowrap;
    }

    .article-shell{
      padding:36px 0 20px;
    }
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0, 1fr) 300px;
      gap:34px;
      align-items:start;
    }
    .article-main{
      min-width:0;
    }
    .reader-card{
      background:rgba(255,253,247,.9);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      padding:38px;
    }
    .article-content{
      max-width:var(--read);
      margin:0 auto;
      color:var(--ink-soft);
      font-size:17px;
      line-height:1.9;
      word-break:break-word;
    }
    .article-content h2{
      margin:42px 0 16px;
      color:var(--ink);
      font-size:clamp(24px,2.6vw,32px);
      line-height:1.28;
      letter-spacing:-.02em;
      font-weight:900;
      padding-top:6px;
    }
    .article-content h3{
      margin:30px 0 12px;
      color:var(--ink);
      font-size:22px;
      line-height:1.35;
      font-weight:850;
    }
    .article-content h4{
      margin:24px 0 10px;
      color:var(--ink);
      font-size:18px;
      font-weight:850;
    }
    .article-content p{
      margin:0 0 20px;
    }
    .article-content a{
      color:var(--mint-dark);
      font-weight:800;
      border-bottom:1px solid rgba(54,198,161,.34);
      background:linear-gradient(180deg,transparent 58%,rgba(54,198,161,.12) 58%);
    }
    .article-content a:hover,.article-content a:focus{
      color:#0f765f;
      background:rgba(54,198,161,.16);
      border-bottom-color:var(--mint-dark);
      outline:none;
    }
    .article-content ul,.article-content ol{
      margin:0 0 22px 0;
      padding-left:24px;
    }
    .article-content li{
      margin:8px 0;
      padding-left:4px;
    }
    .article-content blockquote{
      margin:30px 0;
      padding:20px 22px 20px 24px;
      border-left:5px solid var(--mint);
      border-radius:0 var(--radius) var(--radius) 0;
      background:linear-gradient(90deg,var(--mint-soft),rgba(255,253,247,.72));
      color:var(--ink-soft);
      box-shadow:inset 0 0 0 1px rgba(54,198,161,.12);
    }
    .article-content blockquote p:last-child{margin-bottom:0}
    .article-content img{
      margin:30px auto;
      border-radius:20px;
      border:1px solid var(--line);
      box-shadow:0 14px 30px rgba(50,42,28,.08);
    }
    .article-content hr{
      border:0;
      height:1px;
      background:linear-gradient(90deg,transparent,var(--line-strong),transparent);
      margin:36px 0;
    }
    .article-content code{
      display:inline-block;
      padding:2px 7px;
      border-radius:8px;
      background:#f1eadf;
      color:var(--ink);
      border:1px solid var(--line);
      font-size:.92em;
    }
    .article-content pre{
      overflow:auto;
      padding:18px;
      border-radius:18px;
      background:#2b2924;
      color:#fff7e8;
      border:1px solid rgba(32,32,29,.15);
      line-height:1.75;
      margin:26px 0;
    }
    .article-content pre code{
      display:block;
      padding:0;
      background:transparent;
      border:0;
      color:inherit;
    }
    .article-content table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:28px 0;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:18px;
      background:var(--card);
      display:block;
      max-width:100%;
      overflow-x:auto;
      white-space:nowrap;
    }
    .article-content th,.article-content td{
      padding:13px 15px;
      border-bottom:1px solid var(--line);
      text-align:left;
    }
    .article-content th{
      background:#f1eadf;
      color:var(--ink);
      font-weight:900;
    }
    .article-content tr:last-child td{border-bottom:0}
    .article-note{
      margin-top:28px;
      padding:18px 20px;
      border-radius:22px;
      background:var(--amber-soft);
      border:1px solid rgba(244,166,58,.28);
      color:#71501b;
      font-size:15px;
      line-height:1.8;
    }
    .article-note strong{
      color:#8b5a12;
    }
    .empty-state{
      text-align:center;
      padding:54px 20px;
    }
    .empty-graphic{
      width:96px;
      height:96px;
      border-radius:28px;
      margin:0 auto 18px;
      border:1px solid var(--line);
      background:
        linear-gradient(90deg,transparent 0 20%,rgba(32,32,29,.07) 20% 26%,transparent 26% 42%,rgba(32,32,29,.07) 42% 48%,transparent 48% 64%,rgba(32,32,29,.07) 64% 70%,transparent 70%),
        linear-gradient(135deg,var(--paper-strong),var(--mint-soft));
      position:relative;
      box-shadow:var(--shadow);
    }
    .empty-graphic:after{
      content:"";
      position:absolute;
      left:38px;
      top:31px;
      width:23px;
      height:31px;
      background:var(--ink);
      clip-path:polygon(0 0,100% 50%,0 100%);
      opacity:.78;
    }
    .empty-state h2{
      margin:0 0 10px;
      font-size:28px;
      color:var(--ink);
      font-weight:900;
    }
    .empty-state p{
      max-width:560px;
      margin:0 auto 22px;
      color:var(--muted);
      line-height:1.85;
    }

    .side-card{
      background:rgba(255,253,247,.86);
      border:1px solid var(--line);
      border-radius:24px;
      box-shadow:var(--shadow);
      padding:22px;
      margin-bottom:18px;
    }
    .side-card.sticky{
      position:sticky;
      top:96px;
    }
    .side-title{
      margin:0 0 14px;
      font-size:18px;
      font-weight:900;
      color:var(--ink);
      display:flex;
      align-items:center;
      gap:9px;
    }
    .side-title:before{
      content:"";
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--mint);
      box-shadow:0 0 0 5px rgba(54,198,161,.12);
    }
    .toc-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:8px;
    }
    .toc-list a{
      display:flex;
      align-items:flex-start;
      gap:9px;
      padding:10px 11px;
      border-radius:14px;
      color:var(--muted);
      background:#f7f0e4;
      border:1px solid transparent;
      font-size:14px;
      font-weight:800;
      line-height:1.45;
    }
    .toc-list a:before{
      content:"";
      width:6px;
      height:6px;
      border-radius:50%;
      margin-top:7px;
      background:var(--line-strong);
      flex:0 0 auto;
    }
    .toc-list a:hover,.toc-list a:focus{
      background:var(--mint-soft);
      border-color:rgba(54,198,161,.28);
      color:var(--mint-dark);
      outline:none;
    }
    .quick-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:12px;
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
    }
    .quick-list li{
      padding:12px;
      border-radius:16px;
      background:#f7f0e4;
      border:1px solid var(--line);
    }
    .quick-list strong{
      display:block;
      color:var(--ink);
      margin-bottom:3px;
    }

    .recommend-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .recommend-card{
      display:flex;
      gap:15px;
      padding:18px;
      border-radius:24px;
      border:1px solid var(--line);
      background:rgba(255,253,247,.88);
      box-shadow:var(--shadow);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .recommend-card:hover,.recommend-card:focus-within{
      transform:translateY(-3px);
      border-color:rgba(54,198,161,.45);
      box-shadow:var(--shadow-hover);
    }
    .thumb-mini{
      width:82px;
      min-width:82px;
      height:82px;
      border-radius:18px;
      overflow:hidden;
      border:1px solid var(--line);
      background:
        linear-gradient(90deg,rgba(32,32,29,.08) 0 18%,transparent 18% 34%,rgba(32,32,29,.08) 34% 50%,transparent 50% 66%,rgba(32,32,29,.08) 66% 82%,transparent 82%),
        radial-gradient(circle at 34% 34%,rgba(54,198,161,.28),transparent 38%),
        linear-gradient(135deg,#393731,#1f6e60);
      position:relative;
    }
    .thumb-mini:after{
      content:"";
      position:absolute;
      left:32px;
      top:27px;
      width:18px;
      height:25px;
      background:var(--paper-strong);
      clip-path:polygon(0 0,100% 50%,0 100%);
      opacity:.9;
    }
    .recommend-body{
      min-width:0;
    }
    .recommend-card h3{
      margin:0 0 7px;
      font-size:17px;
      line-height:1.45;
      color:var(--ink);
      font-weight:900;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .recommend-card p{
      margin:0 0 10px;
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .recommend-meta{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      color:var(--muted);
      font-size:13px;
      font-weight:700;
    }

    .cta-band{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:
        radial-gradient(circle at 18% 18%, rgba(54,198,161,.22), transparent 30%),
        radial-gradient(circle at 86% 24%, rgba(244,166,58,.18), transparent 26%),
        linear-gradient(135deg,#25241f 0%,#39362e 58%,#174f45 100%);
      color:var(--paper-strong);
      border:1px solid rgba(32,32,29,.18);
      box-shadow:0 22px 48px rgba(32,32,29,.16);
      padding:34px;
    }
    .cta-band:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
      background-size:28px 100%;
      opacity:.55;
      pointer-events:none;
    }
    .cta-content{
      position:relative;
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:26px;
      align-items:center;
    }
    .cta-band h2{
      margin:0 0 10px;
      font-size:clamp(26px,3vw,36px);
      line-height:1.22;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .cta-band p{
      margin:0;
      color:rgba(255,250,240,.78);
      max-width:690px;
      line-height:1.85;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      justify-content:flex-end;
      flex-wrap:wrap;
    }
    .cta-band .btn-primary{
      background:var(--paper-strong);
      color:var(--ink);
      border-color:var(--paper-strong);
      box-shadow:none;
    }
    .cta-band .btn-primary:hover,.cta-band .btn-primary:focus{
      background:var(--mint);
      border-color:var(--mint);
      color:#073a31;
    }
    .cta-band .btn-secondary{
      background:rgba(255,250,240,.08);
      color:var(--paper-strong);
      border-color:rgba(255,250,240,.28);
    }
    .cta-band .btn-secondary:hover,.cta-band .btn-secondary:focus{
      background:rgba(54,198,161,.16);
      color:#fff;
      border-color:rgba(54,198,161,.45);
    }

    .site-footer{
      border-top:1px solid var(--line);
      background:rgba(255,250,240,.55);
      padding:46px 0 26px;
      margin-top:56px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .7fr .7fr;
      gap:34px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-size:18px;
      font-weight:900;
      color:var(--ink);
      margin-bottom:14px;
    }
    .footer-text{
      margin:0;
      color:var(--muted);
      max-width:560px;
      font-size:15px;
      line-height:1.85;
    }
    .footer-title{
      margin:0 0 12px;
      font-size:16px;
      color:var(--ink);
      font-weight:900;
    }
    .footer-links{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:8px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      padding:3px 0;
      display:inline-flex;
    }
    .footer-links a:hover,.footer-links a:focus{
      color:var(--mint-dark);
      transform:translateX(2px);
      outline:none;
    }
    .copyright{
      margin-top:32px;
      padding-top:18px;
      border-top:1px solid var(--line);
      display:flex;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
    }

    @media screen and (max-width:1024px){
      .nav-center{justify-content:flex-end}
      .status-pill{display:none}
      .article-layout{
        grid-template-columns:1fr;
      }
      .side-card.sticky{
        position:relative;
        top:auto;
      }
      .toc-list{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .cta-content{
        grid-template-columns:1fr;
      }
      .cta-actions{
        justify-content:flex-start;
      }
    }
    @media screen and (max-width:768px){
      .page-container,.read-container{
        width:min(100% - 36px, var(--container));
      }
      .section{padding:52px 0}
      .toolbar{
        gap:10px;
        flex-wrap:wrap;
      }
      .brand-text span{display:none}
      .brand-text strong{font-size:15px}
      .nav-center{
        order:3;
        width:100%;
        justify-content:flex-start;
        overflow-x:auto;
        padding-top:8px;
        scrollbar-width:none;
      }
      .nav-center::-webkit-scrollbar{display:none}
      .nav-link{
        min-height:36px;
        padding:8px 13px;
      }
      .nav-actions{
        margin-left:auto;
      }
      .notice-btn{display:none}
      .article-hero{
        padding:34px 0 16px;
      }
      .article-head-inner{
        padding:26px 22px;
      }
      .article-title{
        font-size:clamp(30px,8vw,38px);
      }
      .article-summary{
        font-size:16px;
      }
      .cover-panel{
        aspect-ratio:16/10;
        min-height:220px;
        border-radius:20px;
      }
      .cover-caption{
        left:22px;
        right:22px;
        bottom:22px;
        display:block;
      }
      .cover-caption strong{
        font-size:20px;
        margin-bottom:12px;
      }
      .reader-card{
        padding:26px 22px;
        border-radius:24px;
      }
      .article-content{
        font-size:16px;
        line-height:1.85;
      }
      .toc-list{
        grid-template-columns:1fr;
      }
      .recommend-grid{
        grid-template-columns:1fr;
      }
      .footer-grid{
        grid-template-columns:1fr;
        gap:24px;
      }
      .copyright{
        display:grid;
      }
    }
    @media screen and (max-width:520px){
      .page-container,.read-container{
        width:calc(100% - 32px);
      }
      .site-header{padding:8px 0}
      .brand-mark{
        width:38px;
        height:38px;
        border-radius:13px;
      }
      .brand-mark:after{
        left:14px;
        top:11px;
      }
      .nav-actions .btn{
        min-height:40px;
        padding:10px 13px;
        font-size:13px;
      }
      .article-header-card{
        border-radius:24px;
      }
      .article-head-inner{
        padding:24px 18px;
      }
      .article-title{
        letter-spacing:-.02em;
      }
      .meta-line{
        gap:8px;
      }
      .cover-panel{
        min-height:190px;
      }
      .cover-panel:before{
        left:20px;
        top:20px;
        width:58px;
        height:58px;
      }
      .cover-panel:after{
        left:42px;
        top:36px;
      }
      .reader-card{
        padding:22px 18px;
      }
      .article-content h2{
        margin-top:34px;
      }
      .recommend-card{
        flex-direction:column;
      }
      .thumb-mini{
        width:100%;
        height:128px;
      }
      .thumb-mini:after{
        left:calc(50% - 9px);
        top:50px;
      }
      .cta-band{
        padding:26px 20px;
      }
      .cta-actions .btn{
        width:100%;
      }
    }