/* roulang page: index */
:root{
      --bg:#101014;
      --bg-2:#17151f;
      --bg-3:#201b2a;
      --card:rgba(255,255,255,.065);
      --card-strong:#211d28;
      --text:#f6f3ef;
      --muted:#cfc8bf;
      --weak:#948b99;
      --line:rgba(255,255,255,.11);
      --line-strong:rgba(255,255,255,.18);
      --primary:#ff6b3d;
      --primary-2:#ff8d5b;
      --accent:#8c6cff;
      --accent-2:#55d6be;
      --cream:#f7f3ee;
      --ink:#241d22;
      --ink-muted:#6a6066;
      --shadow:0 22px 70px rgba(0,0,0,.34);
      --soft-shadow:0 16px 34px rgba(36,24,18,.10);
      --radius-xl:30px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1220px;
      --ease:all .22s ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 0%, rgba(140,108,255,.22), transparent 34%),
        radial-gradient(circle at 82% 10%, rgba(255,107,61,.16), transparent 28%),
        linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 42%,#120f17 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(255,107,61,.35);color:#fff}
    :focus-visible{outline:3px solid rgba(255,107,61,.75);outline-offset:4px;border-radius:12px}

    .container{
      width:min(var(--container),calc(100% - 64px));
      margin-inline:auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(18px);
      background:rgba(16,16,20,.78);
      border-bottom:1px solid var(--line);
    }
    .nav-wrap{
      height:74px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      letter-spacing:.02em;
      white-space:nowrap;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      display:grid;
      place-items:center;
      box-shadow:0 12px 28px rgba(255,107,61,.28);
      position:relative;
      overflow:hidden;
    }
    .brand-mark:before{
      content:"";
      width:0;
      height:0;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:13px solid #fff;
      margin-left:3px;
      filter:drop-shadow(0 3px 8px rgba(0,0,0,.22));
    }
    .brand-text{font-size:20px}
    .nav-menu{
      display:flex;
      align-items:center;
      gap:8px;
      list-style:none;
    }
    .nav-menu a{
      display:inline-flex;
      align-items:center;
      height:40px;
      padding:0 15px;
      border-radius:999px;
      color:var(--muted);
      font-size:15px;
      transition:var(--ease);
    }
    .nav-menu a:hover,
    .nav-menu a.active{
      color:#fff;
      background:rgba(255,255,255,.08);
    }
    .nav-actions{display:flex;align-items:center;gap:12px}
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border-radius:14px;
      background:rgba(255,255,255,.08);
      color:#fff;
      border:1px solid var(--line);
    }
    .menu-toggle span{
      display:block;
      width:18px;
      height:2px;
      background:#fff;
      margin:5px auto;
      border-radius:999px;
      transition:var(--ease);
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:0 22px;
      border-radius:999px;
      font-weight:700;
      font-size:15px;
      transition:var(--ease);
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 15px 34px rgba(255,107,61,.25);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 20px 44px rgba(255,107,61,.34);
      filter:saturate(1.08);
    }
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.07);
      border-color:var(--line-strong);
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      border-color:rgba(255,107,61,.55);
      background:rgba(255,107,61,.10);
    }
    .btn-dark{
      color:#fff;
      background:#211a20;
      border-color:rgba(255,255,255,.10);
    }
    .btn-dark:hover{background:#30242b;transform:translateY(-2px)}
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:#ffe5d9;
      background:rgba(255,107,61,.13);
      border:1px solid rgba(255,107,61,.28);
      font-size:13px;
      font-weight:700;
    }
    .tag.dot:before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 5px rgba(255,107,61,.13);
    }

    .hero{
      position:relative;
      padding:86px 0 96px;
      overflow:hidden;
      isolation:isolate;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(16,16,20,.94),rgba(16,16,20,.62),rgba(16,16,20,.92)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.58;
      z-index:-2;
    }
    .hero:after{
      content:"";
      position:absolute;
      width:520px;
      height:520px;
      right:-120px;
      top:110px;
      background:radial-gradient(circle,rgba(255,107,61,.25),transparent 65%);
      z-index:-1;
      pointer-events:none;
    }
    .hero-layout{
      display:grid;
      grid-template-columns:minmax(0,1.03fr) minmax(360px,.82fr);
      gap:58px;
      align-items:center;
    }
    .hero-copy h1{
      margin-top:22px;
      font-size:clamp(42px,6vw,70px);
      line-height:1.08;
      letter-spacing:-.04em;
      font-weight:850;
      max-width:820px;
    }
    .hero-copy .lead{
      margin-top:24px;
      max-width:700px;
      color:var(--muted);
      font-size:18px;
      line-height:1.85;
    }
    .hero-actions{
      margin-top:34px;
      display:flex;
      align-items:center;
      gap:14px;
      flex-wrap:wrap;
    }
    .trust-strip{
      margin-top:32px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      max-width:780px;
    }
    .trust-item{
      min-height:72px;
      padding:15px 16px;
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(10px);
      color:var(--muted);
      font-size:14px;
    }
    .trust-item strong{
      display:block;
      color:#fff;
      font-size:16px;
      margin-bottom:2px;
    }

    .cinema-panel{
      position:relative;
      border-radius:var(--radius-xl);
      padding:18px;
      background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.04));
      border:1px solid var(--line-strong);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .cinema-panel:before{
      content:"";
      position:absolute;
      inset:-1px;
      background:radial-gradient(circle at 70% 5%,rgba(140,108,255,.28),transparent 36%);
      pointer-events:none;
    }
    .screen-card{
      position:relative;
      border-radius:24px;
      min-height:420px;
      padding:22px;
      background:
        linear-gradient(180deg,rgba(18,16,22,.10),rgba(18,16,22,.86)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      overflow:hidden;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .screen-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:14px;
      color:#fff;
      position:relative;
      z-index:1;
    }
    .status-pill{
      padding:7px 12px;
      border-radius:999px;
      background:rgba(0,0,0,.36);
      border:1px solid rgba(255,255,255,.16);
      font-size:13px;
      color:#f6eee8;
    }
    .play-orbit{
      width:96px;
      height:96px;
      border-radius:50%;
      display:grid;
      place-items:center;
      margin:auto;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      box-shadow:0 0 0 18px rgba(255,255,255,.035);
      backdrop-filter:blur(12px);
    }
    .play-orbit span{
      width:0;height:0;
      border-top:15px solid transparent;
      border-bottom:15px solid transparent;
      border-left:23px solid #fff;
      margin-left:6px;
    }
    .preview-list{
      position:relative;
      z-index:1;
      display:grid;
      gap:12px;
    }
    .preview-row{
      display:flex;
      justify-content:space-between;
      gap:16px;
      align-items:center;
      padding:14px 15px;
      border-radius:16px;
      background:rgba(11,10,14,.58);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(12px);
    }
    .preview-row b{display:block;font-size:15px}
    .preview-row small{color:#cfc8bf}
    .preview-row em{
      font-style:normal;
      color:#ffd4c3;
      font-size:13px;
      white-space:nowrap;
    }

    main{position:relative}
    .section{padding:96px 0}
    .section-tight{padding:76px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:30px;
      margin-bottom:34px;
    }
    .section-kicker{
      color:var(--primary-2);
      font-weight:800;
      font-size:14px;
      letter-spacing:.08em;
      margin-bottom:10px;
    }
    .section-title{
      font-size:clamp(30px,4vw,44px);
      line-height:1.18;
      letter-spacing:-.03em;
    }
    .section-desc{
      max-width:610px;
      color:var(--muted);
      font-size:16px;
    }

    .path-shell{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      padding:14px;
      background:rgba(255,255,255,.045);
      box-shadow:var(--shadow);
    }
    .path-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr .95fr 1.05fr;
      gap:12px;
    }
    .path-item{
      position:relative;
      min-height:210px;
      padding:24px;
      border-radius:22px;
      background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.035));
      border:1px solid var(--line);
      transition:var(--ease);
      overflow:hidden;
    }
    .path-item:hover{
      transform:translateY(-4px);
      border-color:rgba(255,107,61,.38);
      background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.045));
    }
    .path-index{
      position:absolute;
      right:18px;
      top:14px;
      font-size:48px;
      line-height:1;
      font-weight:850;
      color:rgba(255,255,255,.06);
    }
    .icon{
      width:46px;height:46px;
      border-radius:16px;
      display:grid;place-items:center;
      background:rgba(255,107,61,.14);
      border:1px solid rgba(255,107,61,.25);
      color:#ffd8c9;
      margin-bottom:22px;
      font-weight:900;
    }
    .path-item h3{font-size:21px;line-height:1.3;margin-bottom:10px}
    .path-item p{color:var(--muted);font-size:15px}

    .feature-section{
      background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,.055));
      border-block:1px solid rgba(255,255,255,.06);
    }
    .feature-layout{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:24px;
      align-items:stretch;
    }
    .cover-card{
      min-height:520px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      border:1px solid var(--line-strong);
      background:#211d28;
      position:relative;
      box-shadow:var(--shadow);
    }
    .cover-card img{
      width:100%;
      height:100%;
      min-height:520px;
      object-fit:cover;
      filter:saturate(.92) contrast(1.04);
    }
    .cover-overlay{
      position:absolute;
      inset:0;
      padding:30px;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      background:linear-gradient(180deg,rgba(16,16,20,.05),rgba(16,16,20,.84));
    }
    .cover-overlay h3{
      margin-top:14px;
      font-size:32px;
      line-height:1.22;
      max-width:620px;
    }
    .cover-overlay p{
      margin-top:12px;
      color:#ddd4ce;
      max-width:620px;
    }
    .feature-cards{
      display:grid;
      gap:18px;
    }
    .feature-card{
      padding:26px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      transition:var(--ease);
    }
    .feature-card:hover{
      transform:translateY(-4px);
      border-color:rgba(140,108,255,.42);
      box-shadow:0 18px 45px rgba(0,0,0,.18);
    }
    .feature-card h3{font-size:22px;margin-bottom:10px}
    .feature-card p{color:var(--muted);font-size:15px}
    .mini-cover{
      display:grid;
      grid-template-columns:112px 1fr;
      gap:18px;
      align-items:center;
    }
    .mini-cover img{
      width:112px;
      height:92px;
      object-fit:cover;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.12);
    }

    .light-area{
      color:var(--ink);
      background:
        radial-gradient(circle at 5% 10%,rgba(255,107,61,.12),transparent 28%),
        linear-gradient(180deg,#f7f3ee 0%,#efe8df 100%);
    }
    .light-area .section-desc,
    .light-area .muted{color:var(--ink-muted)}
    .light-area .section-kicker{color:#d6542b}
    .updates-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:24px;
      align-items:start;
    }
    .updates-list{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .post-card{
      display:flex;
      flex-direction:column;
      min-height:238px;
      padding:24px;
      border-radius:22px;
      background:rgba(255,255,255,.76);
      border:1px solid rgba(65,42,35,.10);
      box-shadow:var(--soft-shadow);
      transition:var(--ease);
    }
    .post-card:hover{
      transform:translateY(-4px);
      box-shadow:0 18px 42px rgba(36,24,18,.14);
      border-color:rgba(255,107,61,.32);
    }
    .post-meta{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:center;
      margin-bottom:14px;
      color:#7b6d72;
      font-size:13px;
    }
    .post-tag{
      display:inline-flex;
      padding:5px 10px;
      border-radius:999px;
      color:#c54b25;
      background:rgba(255,107,61,.12);
      font-weight:800;
      max-width:148px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .post-card h3{
      color:#20191e;
      font-size:21px;
      line-height:1.38;
      margin-bottom:10px;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .post-card p{
      color:#665b61;
      font-size:15px;
      line-height:1.75;
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .post-link{
      margin-top:auto;
      padding-top:18px;
      color:#d6542b;
      font-weight:800;
      display:inline-flex;
      align-items:center;
      gap:8px;
    }
    .post-link:after{content:"→";transition:var(--ease)}
    .post-card:hover .post-link:after{transform:translateX(4px)}
    .updates-side{
      position:sticky;
      top:96px;
      border-radius:var(--radius-xl);
      padding:26px;
      color:#fff;
      background:
        linear-gradient(180deg,rgba(33,29,40,.82),rgba(18,15,23,.95)),
        url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.14);
      box-shadow:var(--soft-shadow);
      overflow:hidden;
    }
    .updates-side:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(16,16,20,.28),rgba(16,16,20,.86));
      pointer-events:none;
    }
    .updates-side > *{position:relative}
    .updates-side h3{font-size:24px;margin:16px 0 10px}
    .updates-side p{color:#ded4cd;font-size:15px}
    .side-list{
      list-style:none;
      margin-top:22px;
      display:grid;
      gap:12px;
    }
    .side-list li{
      padding-left:22px;
      position:relative;
      color:#efe7e0;
      font-size:14px;
    }
    .side-list li:before{
      content:"";
      position:absolute;
      left:0;
      top:.72em;
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--primary);
    }
    .empty-state{
      grid-column:1/-1;
      min-height:210px;
      border-radius:22px;
      padding:32px;
      background:rgba(255,255,255,.76);
      border:1px dashed rgba(103,72,58,.22);
      box-shadow:var(--soft-shadow);
      display:grid;
      align-content:center;
      justify-items:center;
      text-align:center;
      color:#665b61;
    }
    .empty-icon{
      width:58px;height:58px;
      border-radius:20px;
      display:grid;place-items:center;
      margin-bottom:14px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      font-weight:900;
      font-size:24px;
    }

    .guide-layout{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:34px;
      align-items:start;
    }
    .guide-intro{
      border-radius:var(--radius-xl);
      padding:34px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      position:sticky;
      top:96px;
    }
    .guide-intro p{color:var(--muted);margin-top:16px}
    .guide-list{
      display:grid;
      gap:14px;
    }
    .guide-item{
      display:grid;
      grid-template-columns:48px 1fr;
      gap:18px;
      padding:22px;
      border-radius:22px;
      background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.035));
      border:1px solid var(--line);
      transition:var(--ease);
    }
    .guide-item:hover{
      transform:translateX(4px);
      border-color:rgba(255,107,61,.38);
    }
    .check{
      width:48px;height:48px;
      border-radius:16px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--accent),var(--primary));
      font-weight:900;
    }
    .guide-item h3{font-size:20px;margin-bottom:6px}
    .guide-item p{color:var(--muted);font-size:15px}

    .stats-band{
      padding:0 0 96px;
    }
    .stats-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      padding:18px;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.045);
    }
    .stat-card{
      padding:24px;
      border-radius:22px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
    }
    .stat-card strong{
      display:block;
      color:#fff;
      font-size:34px;
      line-height:1.1;
      letter-spacing:-.03em;
      margin-bottom:8px;
    }
    .stat-card span{color:var(--muted);font-size:14px}

    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    .faq-item{
      border-radius:22px;
      background:rgba(255,255,255,.78);
      border:1px solid rgba(65,42,35,.10);
      box-shadow:var(--soft-shadow);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      min-height:72px;
      padding:20px 22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      text-align:left;
      color:#20191e;
      background:transparent;
      font-weight:800;
    }
    .faq-question span:last-child{
      width:30px;height:30px;
      border-radius:50%;
      display:grid;place-items:center;
      flex:0 0 auto;
      color:#fff;
      background:#211a20;
      transition:var(--ease);
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s ease;
    }
    .faq-answer p{
      padding:0 22px 22px;
      color:#665b61;
      font-size:15px;
    }
    .faq-item.open .faq-answer{max-height:180px}
    .faq-item.open .faq-question span:last-child{
      transform:rotate(45deg);
      background:var(--primary);
    }

    .subscribe-card{
      margin-top:40px;
      padding:24px;
      border-radius:var(--radius-xl);
      color:#fff;
      background:linear-gradient(135deg,rgba(33,29,40,.94),rgba(20,17,25,.98));
      border:1px solid rgba(255,255,255,.12);
      display:grid;
      grid-template-columns:1fr auto;
      gap:20px;
      align-items:center;
    }
    .search-form{
      display:flex;
      gap:10px;
      min-width:360px;
    }
    .search-form input{
      width:100%;
      min-height:48px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.08);
      color:#fff;
      padding:0 18px;
      outline:none;
      transition:var(--ease);
    }
    .search-form input::placeholder{color:#a99fa8}
    .search-form input:focus{
      border-color:rgba(255,107,61,.72);
      box-shadow:0 0 0 4px rgba(255,107,61,.14);
    }

    .cta-section{
      padding:96px 0;
      position:relative;
      overflow:hidden;
    }
    .cta-card{
      position:relative;
      overflow:hidden;
      border-radius:34px;
      padding:54px;
      background:
        radial-gradient(circle at 15% 10%,rgba(255,107,61,.32),transparent 26%),
        radial-gradient(circle at 84% 0%,rgba(140,108,255,.25),transparent 30%),
        linear-gradient(135deg,#211a20,#121017);
      border:1px solid rgba(255,255,255,.13);
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1fr auto;
      gap:34px;
      align-items:center;
    }
    .cta-card h2{
      font-size:clamp(30px,4vw,46px);
      line-height:1.16;
      letter-spacing:-.03em;
      margin-bottom:14px;
    }
    .cta-card p{color:#ded4cd;max-width:760px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}

    .site-footer{
      background:#0d0c10;
      border-top:1px solid rgba(255,255,255,.08);
      padding:54px 0 28px;
      color:#bdb3bd;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .9fr;
      gap:36px;
      align-items:start;
    }
    .footer-brand .brand{margin-bottom:18px}
    .footer-brand p{max-width:520px;color:#a99fa8;font-size:15px}
    .footer-title{
      color:#fff;
      font-weight:800;
      margin-bottom:14px;
    }
    .footer-links{
      list-style:none;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:#bdb3bd;
      transition:var(--ease);
      font-size:15px;
    }
    .footer-links a:hover{color:var(--primary-2)}
    .footer-note{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.08);
      font-size:14px;
      color:#a99fa8;
    }
    .copyright{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:#8f8794;
      font-size:14px;
    }

    @media (max-width:1100px){
      .container{width:min(var(--container),calc(100% - 48px))}
      .hero-layout{grid-template-columns:1fr;gap:38px}
      .cinema-panel{max-width:760px}
      .path-grid{grid-template-columns:repeat(2,1fr)}
      .feature-layout,.guide-layout{grid-template-columns:1fr}
      .guide-intro{position:relative;top:auto}
      .updates-layout{grid-template-columns:1fr}
      .updates-side{position:relative;top:auto}
      .stats-grid{grid-template-columns:repeat(2,1fr)}
      .cta-card{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
    }

    @media (max-width:820px){
      .nav-menu{
        position:absolute;
        left:24px;
        right:24px;
        top:82px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:14px;
        border-radius:22px;
        background:rgba(16,16,20,.96);
        border:1px solid var(--line);
        box-shadow:var(--shadow);
      }
      .nav-menu.open{display:flex}
      .nav-menu a{height:48px;justify-content:center}
      .menu-toggle{display:inline-block}
      .nav-actions .btn{display:none}
      .section,.cta-section{padding:72px 0}
      .section-tight{padding:62px 0}
      .section-head{display:block}
      .section-desc{margin-top:12px}
      .trust-strip{grid-template-columns:1fr}
      .updates-list{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .subscribe-card{grid-template-columns:1fr}
      .search-form{min-width:0}
      .footer-grid{grid-template-columns:1fr}
      .cover-card,.cover-card img{min-height:420px}
    }

    @media (max-width:560px){
      .container{width:calc(100% - 32px)}
      .nav-wrap{height:66px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-text{font-size:18px}
      .hero{padding:58px 0 70px}
      .hero-copy h1{font-size:38px}
      .hero-copy .lead{font-size:16px}
      .hero-actions,.cta-actions,.search-form{flex-direction:column;align-items:stretch}
      .btn{width:100%}
      .screen-card{min-height:360px;padding:18px}
      .path-grid,.stats-grid{grid-template-columns:1fr}
      .path-item{min-height:auto}
      .mini-cover{grid-template-columns:1fr}
      .mini-cover img{width:100%;height:170px}
      .cover-overlay{padding:22px}
      .cover-overlay h3{font-size:25px}
      .guide-item{grid-template-columns:1fr;padding:20px}
      .cta-card{padding:30px 22px;border-radius:26px}
      .post-card{min-height:auto}
      .subscribe-card{padding:20px}
    }

/* roulang page: article */
:root{
      --bg:#101014;
      --bg-2:#17151f;
      --bg-3:#201b2a;
      --card:rgba(255,255,255,.065);
      --card-strong:#211d28;
      --text:#f6f3ef;
      --muted:#cfc8bf;
      --weak:#948b99;
      --line:rgba(255,255,255,.11);
      --line-strong:rgba(255,255,255,.18);
      --primary:#ff6b3d;
      --primary-2:#ff8d5b;
      --accent:#8c6cff;
      --accent-2:#55d6be;
      --cream:#f7f3ee;
      --ink:#241d22;
      --ink-muted:#6a6066;
      --shadow:0 22px 70px rgba(0,0,0,.34);
      --soft-shadow:0 16px 34px rgba(36,24,18,.10);
      --radius-xl:30px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1220px;
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 0%, rgba(140,108,255,.22), transparent 33%),
        radial-gradient(circle at 86% 12%, rgba(255,107,61,.15), transparent 29%),
        linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 38%,#120f17 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body.menu-open{overflow:hidden}
    a{color:inherit;text-decoration:none}
    a:hover{color:inherit}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    ul,ol{margin:0;padding:0}
    :focus-visible{
      outline:3px solid rgba(255,107,61,.55);
      outline-offset:3px;
      border-radius:12px;
    }
    .container{
      width:min(var(--container),calc(100% - 64px));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(18px);
      background:rgba(16,16,20,.78);
      border-bottom:1px solid var(--line);
    }
    .nav-wrap{
      height:74px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      letter-spacing:.02em;
      white-space:nowrap;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      display:grid;
      place-items:center;
      box-shadow:0 12px 28px rgba(255,107,61,.28);
      position:relative;
      overflow:hidden;
      flex:0 0 auto;
    }
    .brand-mark:before{
      content:"";
      width:0;
      height:0;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:13px solid #fff;
      margin-left:3px;
      filter:drop-shadow(0 3px 8px rgba(0,0,0,.22));
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      inset:-14px;
      background:linear-gradient(120deg,transparent 10%,rgba(255,255,255,.28) 45%,transparent 68%);
      transform:translateX(-70%) rotate(12deg);
      transition:var(--ease);
    }
    .brand:hover .brand-mark:after{transform:translateX(70%) rotate(12deg)}
    .brand-text{font-size:20px;color:#fff}
    .nav-menu{
      display:flex;
      align-items:center;
      gap:8px;
      list-style:none;
    }
    .nav-menu a{
      display:inline-flex;
      align-items:center;
      height:40px;
      padding:0 15px;
      border-radius:999px;
      color:var(--muted);
      font-size:15px;
      transition:var(--ease);
    }
    .nav-menu a:hover,
    .nav-menu a.active{
      color:#fff;
      background:rgba(255,255,255,.08);
    }
    .nav-actions{display:flex;align-items:center;gap:12px}
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border-radius:14px;
      background:rgba(255,255,255,.08);
      color:#fff;
      border:1px solid var(--line);
      transition:var(--ease);
    }
    .menu-toggle:hover{background:rgba(255,255,255,.12)}
    .menu-toggle span{
      display:block;
      width:18px;
      height:2px;
      background:#fff;
      margin:5px auto;
      border-radius:999px;
      transition:var(--ease);
    }
    .menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .menu-toggle.is-open span:nth-child(2){opacity:0}
    .menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:0 22px;
      border-radius:999px;
      font-weight:700;
      font-size:15px;
      transition:var(--ease);
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 15px 34px rgba(255,107,61,.25);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 20px 44px rgba(255,107,61,.34);
      filter:saturate(1.08);
      color:#fff;
    }
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.07);
      border-color:var(--line-strong);
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      border-color:rgba(255,107,61,.55);
      background:rgba(255,107,61,.10);
      color:#fff;
    }
    .btn-dark{
      color:#fff;
      background:#211a20;
      border-color:rgba(255,255,255,.10);
    }
    .btn-dark:hover{background:#30242b;transform:translateY(-2px);color:#fff}
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:#ffe5d9;
      background:rgba(255,107,61,.13);
      border:1px solid rgba(255,107,61,.28);
      font-size:13px;
      font-weight:700;
    }
    .tag.dot:before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 5px rgba(255,107,61,.13);
    }
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      color:#efe9ff;
      background:rgba(140,108,255,.14);
      border:1px solid rgba(140,108,255,.28);
    }
    .article-hero{
      position:relative;
      padding:58px 0 70px;
      overflow:hidden;
      isolation:isolate;
      border-bottom:1px solid var(--line);
    }
    .article-hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(16,16,20,.96),rgba(16,16,20,.70),rgba(16,16,20,.93)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      opacity:.72;
      z-index:-2;
    }
    .article-hero:after{
      content:"";
      position:absolute;
      width:560px;
      height:560px;
      right:-180px;
      top:-160px;
      background:radial-gradient(circle,rgba(255,107,61,.26),transparent 67%);
      z-index:-1;
      pointer-events:none;
    }
    .crumbs{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      color:var(--weak);
      font-size:14px;
      margin-bottom:24px;
    }
    .crumbs a{
      color:var(--muted);
      transition:var(--ease);
    }
    .crumbs a:hover{color:#fff}
    .crumbs .sep{opacity:.55}
    .crumbs .current{
      max-width:560px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .article-hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 350px;
      gap:44px;
      align-items:end;
    }
    .article-head h1{
      margin:20px 0 0;
      max-width:900px;
      font-size:clamp(34px,5vw,58px);
      line-height:1.13;
      letter-spacing:-.035em;
      font-weight:850;
      color:#fff;
    }
    .article-summary{
      margin-top:20px;
      max-width:820px;
      color:var(--muted);
      font-size:17px;
      line-height:1.85;
    }
    .article-meta{
      margin-top:26px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:36px;
      padding:0 12px;
      border-radius:999px;
      color:var(--muted);
      background:rgba(255,255,255,.07);
      border:1px solid var(--line);
      font-size:13px;
    }
    .meta-pill svg{width:15px;height:15px;color:var(--primary)}
    .hero-cover{
      position:relative;
      border-radius:var(--radius-xl);
      overflow:hidden;
      min-height:250px;
      border:1px solid var(--line-strong);
      background:linear-gradient(135deg,rgba(140,108,255,.18),rgba(255,107,61,.14));
      box-shadow:var(--shadow);
    }
    .hero-cover img{
      width:100%;
      height:100%;
      min-height:250px;
      object-fit:cover;
      opacity:.82;
      filter:saturate(1.04) contrast(1.05);
    }
    .hero-cover:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent 20%,rgba(16,16,20,.86));
    }
    .cover-caption{
      position:absolute;
      left:20px;
      right:20px;
      bottom:20px;
      z-index:2;
      padding:16px;
      border-radius:18px;
      background:rgba(16,16,20,.64);
      border:1px solid rgba(255,255,255,.13);
      backdrop-filter:blur(14px);
    }
    .cover-caption strong{
      display:block;
      color:#fff;
      font-size:16px;
      margin-bottom:4px;
    }
    .cover-caption span{
      display:block;
      color:var(--muted);
      font-size:13px;
      line-height:1.65;
    }
    .main-shell{
      background:
        linear-gradient(180deg,rgba(247,243,238,.03),rgba(247,243,238,0) 18%),
        var(--cream);
      color:var(--ink);
      padding:74px 0 88px;
    }
    .read-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) 330px;
      gap:34px;
      align-items:start;
    }
    .article-card{
      background:#fff;
      border:1px solid rgba(36,29,34,.08);
      border-radius:var(--radius-xl);
      box-shadow:var(--soft-shadow);
      overflow:hidden;
    }
    .article-toolbar{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      justify-content:space-between;
      padding:18px 22px;
      border-bottom:1px solid rgba(36,29,34,.08);
      background:linear-gradient(135deg,#fff,#fbf7f2);
    }
    .toolbar-title{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--ink);
      font-weight:800;
      font-size:15px;
    }
    .toolbar-title:before{
      content:"";
      width:10px;
      height:10px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 6px rgba(255,107,61,.13);
    }
    .toolbar-note{
      color:var(--ink-muted);
      font-size:13px;
    }
    .article-body{
      padding:34px 42px 44px;
      color:#332930;
      font-size:17px;
      line-height:1.88;
      word-break:break-word;
    }
    .article-body h2{
      margin:42px 0 16px;
      color:#1f171d;
      font-size:30px;
      line-height:1.25;
      font-weight:820;
      letter-spacing:-.02em;
      padding-top:8px;
    }
    .article-body h2:first-child{margin-top:0}
    .article-body h3{
      margin:30px 0 12px;
      color:#261d23;
      font-size:22px;
      line-height:1.35;
      font-weight:780;
    }
    .article-body h4{
      margin:24px 0 10px;
      color:#2c2228;
      font-size:19px;
      font-weight:760;
    }
    .article-body p{
      margin:0 0 20px;
    }
    .article-body a{
      color:#d9532d;
      font-weight:700;
      border-bottom:1px solid rgba(217,83,45,.28);
      transition:var(--ease);
    }
    .article-body a:hover{
      color:#b53d1f;
      border-bottom-color:rgba(181,61,31,.65);
    }
    .article-body ul,
    .article-body ol{
      margin:18px 0 24px;
      padding-left:1.35em;
    }
    .article-body li{
      margin:9px 0;
      padding-left:4px;
    }
    .article-body blockquote{
      margin:28px 0;
      padding:22px 24px;
      border-left:5px solid var(--primary);
      border-radius:18px;
      background:#fff5ee;
      color:#503f47;
      box-shadow:inset 0 0 0 1px rgba(255,107,61,.10);
    }
    .article-body figure{
      margin:30px 0;
    }
    .article-body img{
      width:auto;
      max-width:100%;
      height:auto;
      border-radius:18px;
      box-shadow:0 16px 34px rgba(36,24,18,.12);
    }
    .article-body figcaption{
      margin-top:10px;
      text-align:center;
      color:#8a7e84;
      font-size:14px;
    }
    .article-body table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:28px 0;
      overflow:hidden;
      border:1px solid rgba(36,29,34,.10);
      border-radius:16px;
      display:block;
      max-width:100%;
    }
    .article-body table tbody,
    .article-body table thead,
    .article-body table tr{width:100%}
    .article-body th,
    .article-body td{
      padding:13px 15px;
      border-bottom:1px solid rgba(36,29,34,.08);
      color:#3d3137;
      vertical-align:top;
    }
    .article-body th{
      background:#fbf1ea;
      color:#241d22;
      font-weight:800;
    }
    .article-body tr:last-child td{border-bottom:0}
    .article-body code,
    .article-body pre{
      border-radius:12px;
      background:#261f27;
      color:#ffe5d9;
      border:1px solid rgba(255,107,61,.18);
    }
    .article-body code{
      padding:2px 7px;
      font-size:.92em;
    }
    .article-body pre{
      padding:18px;
      overflow:auto;
      line-height:1.65;
    }
    .article-body hr{
      margin:34px 0;
      border:0;
      border-top:1px solid rgba(36,29,34,.10);
    }
    .not-found-card{
      padding:44px;
      text-align:center;
      background:#fff;
      border:1px solid rgba(36,29,34,.08);
      border-radius:var(--radius-xl);
      box-shadow:var(--soft-shadow);
    }
    .not-found-icon{
      width:72px;
      height:72px;
      margin:0 auto 18px;
      border-radius:24px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,rgba(255,107,61,.16),rgba(140,108,255,.16));
      color:var(--primary);
      font-size:28px;
    }
    .not-found-card h2{
      margin:0 0 10px;
      font-size:28px;
      color:var(--ink);
      font-weight:850;
    }
    .not-found-card p{
      margin:0 auto 24px;
      max-width:520px;
      color:var(--ink-muted);
      line-height:1.8;
    }
    .side-stack{
      display:grid;
      gap:18px;
      position:sticky;
      top:96px;
    }
    .side-card{
      border-radius:var(--radius-lg);
      padding:22px;
      background:#fff;
      color:var(--ink);
      border:1px solid rgba(36,29,34,.08);
      box-shadow:var(--soft-shadow);
    }
    .side-card.dark{
      color:#fff;
      background:
        radial-gradient(circle at 100% 0%,rgba(255,107,61,.22),transparent 42%),
        linear-gradient(145deg,#211d28,#17151f);
      border-color:rgba(255,255,255,.12);
      box-shadow:var(--shadow);
    }
    .side-card h2,
    .side-card h3{
      margin:0 0 14px;
      font-size:20px;
      line-height:1.32;
      font-weight:820;
    }
    .side-card p{
      margin:0;
      color:var(--ink-muted);
      font-size:14px;
      line-height:1.75;
    }
    .side-card.dark p{color:var(--muted)}
    .point-list{
      list-style:none;
      display:grid;
      gap:12px;
      margin-top:16px;
    }
    .point-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:#43363d;
      font-size:14px;
      line-height:1.65;
    }
    .side-card.dark .point-list li{color:var(--muted)}
    .point-list li:before{
      content:"";
      width:18px;
      height:18px;
      flex:0 0 auto;
      margin-top:3px;
      border-radius:50%;
      background:
        linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 6px 14px rgba(255,107,61,.20);
    }
    .mini-cover{
      margin:16px 0 0;
      border-radius:18px;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.12);
      background:#201b2a;
      position:relative;
    }
    .mini-cover img{
      width:100%;
      aspect-ratio:16/10;
      object-fit:cover;
      opacity:.88;
    }
    .side-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:14px 0;
      border-bottom:1px solid rgba(36,29,34,.09);
      color:var(--ink);
      transition:var(--ease);
    }
    .side-link:last-child{border-bottom:0;padding-bottom:0}
    .side-link:hover{color:#d9532d;transform:translateX(3px)}
    .side-link span{
      font-weight:760;
      line-height:1.48;
      font-size:14px;
    }
    .side-link small{
      color:var(--ink-muted);
      white-space:nowrap;
      font-size:12px;
    }
    .article-end{
      margin-top:24px;
      padding:24px;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,rgba(255,107,61,.12),rgba(140,108,255,.10)),
        #fff;
      border:1px solid rgba(36,29,34,.08);
      box-shadow:var(--soft-shadow);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .article-end h2{
      margin:0 0 6px;
      font-size:22px;
      font-weight:850;
      color:var(--ink);
    }
    .article-end p{
      margin:0;
      color:var(--ink-muted);
      line-height:1.75;
    }
    .section{
      margin-top:76px;
    }
    .section-head{
      max-width:760px;
      margin-bottom:28px;
    }
    .section-eyebrow{
      color:#d9532d;
      font-size:14px;
      font-weight:850;
      letter-spacing:.04em;
      margin-bottom:8px;
    }
    .section-title{
      margin:0;
      font-size:clamp(28px,4vw,40px);
      line-height:1.22;
      font-weight:850;
      color:var(--ink);
      letter-spacing:-.025em;
    }
    .section-desc{
      margin:14px 0 0;
      color:var(--ink-muted);
      font-size:16px;
      line-height:1.82;
    }
    .info-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .info-card{
      min-height:210px;
      padding:24px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid rgba(36,29,34,.08);
      box-shadow:var(--soft-shadow);
      transition:var(--ease);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .info-card:hover{
      transform:translateY(-4px);
      box-shadow:0 20px 42px rgba(36,24,18,.13);
      border-color:rgba(255,107,61,.20);
    }
    .info-card .tag{align-self:flex-start;color:#c84b28;background:#fff3eb;border-color:rgba(255,107,61,.22)}
    .info-card h3{
      margin:18px 0 10px;
      font-size:20px;
      line-height:1.36;
      font-weight:820;
      color:var(--ink);
    }
    .info-card p{
      margin:0;
      color:var(--ink-muted);
      line-height:1.75;
      font-size:15px;
    }
    .info-card a{
      margin-top:18px;
      display:inline-flex;
      color:#d9532d;
      font-weight:800;
      font-size:14px;
    }
    .guide-panel{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:22px;
      padding:28px;
      border-radius:var(--radius-xl);
      background:
        radial-gradient(circle at 5% 0%,rgba(140,108,255,.22),transparent 35%),
        linear-gradient(145deg,#211d28,#15131b);
      color:#fff;
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .guide-panel:after{
      content:"";
      position:absolute;
      width:260px;
      height:260px;
      right:-80px;
      bottom:-100px;
      background:radial-gradient(circle,rgba(255,107,61,.24),transparent 65%);
      pointer-events:none;
    }
    .guide-intro{
      position:relative;
      z-index:1;
      padding:8px 4px;
    }
    .guide-intro h2{
      margin:12px 0 12px;
      font-size:32px;
      line-height:1.22;
      font-weight:850;
    }
    .guide-intro p{
      margin:0;
      color:var(--muted);
      line-height:1.82;
    }
    .guide-list{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
      list-style:none;
    }
    .guide-list li{
      padding:18px;
      border-radius:18px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
      transition:var(--ease);
    }
    .guide-list li:hover{
      transform:translateY(-3px);
      background:rgba(255,255,255,.10);
      border-color:rgba(255,107,61,.35);
    }
    .guide-list strong{
      display:block;
      color:#fff;
      font-size:16px;
      margin-bottom:7px;
    }
    .guide-list span{
      display:block;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
    }
    .faq-wrap{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:24px;
      align-items:start;
    }
    .faq-aside{
      padding:28px;
      border-radius:var(--radius-xl);
      background:#fff;
      border:1px solid rgba(36,29,34,.08);
      box-shadow:var(--soft-shadow);
    }
    .faq-aside h2{
      margin:0 0 12px;
      font-size:32px;
      line-height:1.22;
      font-weight:850;
      color:var(--ink);
    }
    .faq-aside p{
      margin:0;
      color:var(--ink-muted);
      line-height:1.82;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border-radius:20px;
      background:#fff;
      border:1px solid rgba(36,29,34,.08);
      box-shadow:var(--soft-shadow);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      min-height:64px;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      background:transparent;
      color:var(--ink);
      font-weight:820;
      text-align:left;
      transition:var(--ease);
    }
    .faq-question:hover{background:#fff8f3}
    .faq-question .plus{
      width:28px;
      height:28px;
      flex:0 0 auto;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      transition:var(--ease);
    }
    .faq-question .plus:before{content:"+";font-weight:900;line-height:1}
    .faq-item.is-open .plus{transform:rotate(45deg)}
    .faq-answer{
      display:none;
      padding:0 20px 20px;
      color:var(--ink-muted);
      line-height:1.8;
    }
    .faq-item.is-open .faq-answer{display:block}
    .cta-band{
      margin-top:76px;
      border-radius:var(--radius-xl);
      padding:34px;
      color:#fff;
      background:
        radial-gradient(circle at 15% 20%,rgba(255,107,61,.30),transparent 35%),
        radial-gradient(circle at 88% 0%,rgba(140,108,255,.24),transparent 34%),
        linear-gradient(135deg,#221c27,#111018);
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1fr auto;
      align-items:center;
      gap:24px;
    }
    .cta-band h2{
      margin:0 0 8px;
      font-size:30px;
      font-weight:850;
      line-height:1.25;
    }
    .cta-band p{
      margin:0;
      color:var(--muted);
      line-height:1.8;
      max-width:760px;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }
    .site-footer{
      background:#0e0d12;
      border-top:1px solid var(--line);
      padding:58px 0 26px;
      color:var(--muted);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .75fr 1fr;
      gap:36px;
      align-items:start;
    }
    .footer-brand p{
      margin:18px 0 0;
      max-width:470px;
      color:var(--weak);
      line-height:1.8;
      font-size:14px;
    }
    .footer-title{
      color:#fff;
      font-weight:820;
      margin-bottom:14px;
      font-size:16px;
    }
    .footer-links{
      list-style:none;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--weak);
      transition:var(--ease);
      font-size:14px;
    }
    .footer-links a:hover{
      color:var(--primary);
      padding-left:4px;
    }
    .footer-note{
      color:var(--weak);
      font-size:14px;
      line-height:1.85;
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.045);
      border:1px solid var(--line);
    }
    .copyright{
      margin-top:38px;
      padding-top:20px;
      border-top:1px solid var(--line);
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:#756f7b;
      font-size:13px;
    }
    @media (max-width:1100px){
      .article-hero-grid{
        grid-template-columns:1fr;
        gap:28px;
      }
      .hero-cover{
        max-width:560px;
      }
      .read-layout{
        grid-template-columns:1fr;
      }
      .side-stack{
        position:static;
        grid-template-columns:repeat(2,1fr);
      }
      .side-card.dark{grid-column:1/-1}
      .info-grid{grid-template-columns:repeat(2,1fr)}
      .guide-panel,
      .faq-wrap{
        grid-template-columns:1fr;
      }
      .cta-band{
        grid-template-columns:1fr;
      }
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:900px){
      .container{width:min(var(--container),calc(100% - 48px))}
      .nav-wrap{height:68px}
      .menu-toggle{display:inline-block}
      .nav-menu{
        position:fixed;
        left:24px;
        right:24px;
        top:78px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:8px;
        padding:16px;
        border-radius:22px;
        background:rgba(18,16,24,.96);
        border:1px solid var(--line-strong);
        box-shadow:var(--shadow);
        backdrop-filter:blur(18px);
      }
      .nav-menu.is-open{display:flex}
      .nav-menu a{
        width:100%;
        height:46px;
        justify-content:center;
      }
      .nav-actions .btn{display:none}
      .article-hero{padding:42px 0 56px}
      .main-shell{padding:56px 0 70px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:720px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .article-head h1{font-size:34px}
      .article-summary{font-size:16px}
      .crumbs .current{max-width:260px}
      .hero-cover,
      .hero-cover img{min-height:210px}
      .article-toolbar{
        align-items:flex-start;
        flex-direction:column;
        padding:16px 18px;
      }
      .article-body{padding:28px 22px 34px;font-size:16px;line-height:1.85}
      .article-body h2{font-size:25px;margin-top:34px}
      .article-body h3{font-size:20px}
      .article-end{
        flex-direction:column;
        align-items:flex-start;
      }
      .article-end .btn{width:100%}
      .side-stack{grid-template-columns:1fr}
      .info-grid{grid-template-columns:1fr}
      .guide-panel{padding:22px}
      .guide-list{grid-template-columns:1fr}
      .faq-aside h2{font-size:28px}
      .cta-band{padding:26px}
      .cta-band h2{font-size:26px}
      .cta-actions,
      .cta-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .copyright{flex-direction:column}
    }
    @media (max-width:430px){
      .container{width:min(var(--container),calc(100% - 28px))}
      .brand-text{font-size:18px}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .article-head h1{font-size:31px}
      .article-meta{gap:8px}
      .meta-pill{font-size:12px}
      .not-found-card{padding:32px 20px}
      .side-card,
      .faq-aside,
      .info-card{padding:20px}
      .nav-menu{left:14px;right:14px}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}