/* roulang page: index */
:root{
      --bg:#120C14;
      --bg-2:#171019;
      --panel:#211723;
      --panel-2:#2A1D2C;
      --panel-3:#332338;
      --line:rgba(255,255,255,.08);
      --line-strong:rgba(200,137,106,.38);
      --brand:#C8896A;
      --brand-2:#E0A75E;
      --violet:#9E6CFF;
      --text:#FFF7EF;
      --muted:#D8CDD8;
      --weak:#9F92A0;
      --safe:#8FD6B5;
      --shadow:0 24px 70px rgba(0,0,0,.34);
      --shadow-soft:0 14px 42px rgba(0,0,0,.25);
      --radius-xl:30px;
      --radius-lg:24px;
      --radius-md:18px;
      --radius-sm:14px;
      --container:1180px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      color:var(--muted);
      background:
        radial-gradient(circle at 12% 8%, rgba(158,108,255,.18), transparent 30%),
        radial-gradient(circle at 88% 18%, rgba(200,137,106,.16), transparent 32%),
        linear-gradient(180deg, #120C14 0%, #171019 48%, #100A12 100%);
      line-height:1.78;
      overflow-x:hidden;
    }
    body.menu-open{overflow:hidden}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(200,137,106,.34);color:var(--text)}
    :focus-visible{outline:3px solid rgba(200,137,106,.45);outline-offset:3px}

    .container{
      width:min(var(--container), calc(100% - 64px));
      margin:0 auto;
    }
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.045);
      color:var(--brand-2);
      font-size:13px;
      line-height:1.2;
      font-weight:650;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:999px;
      background:var(--brand-2);
      box-shadow:0 0 0 5px rgba(224,167,94,.12);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:28px;
      margin-bottom:34px;
    }
    .section-title{
      margin:14px 0 0;
      color:var(--text);
      font-size:clamp(26px, 3vw, 34px);
      line-height:1.22;
      letter-spacing:-.02em;
    }
    .section-desc{
      margin:14px 0 0;
      color:var(--weak);
      max-width:660px;
      font-size:16px;
    }
    .soft-divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.12), transparent);
    }

    .age-strip{
      background:#0E090F;
      border-bottom:1px solid var(--line);
      color:#D8C4AA;
      font-size:13px;
    }
    .age-strip .container{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      text-align:center;
    }
    .age-dot{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--brand-2);
      box-shadow:0 0 16px rgba(224,167,94,.65);
      flex:0 0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(18,12,20,.86);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
    }
    .nav-wrap{
      min-height:74px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      color:var(--text);
      font-weight:800;
      letter-spacing:-.02em;
    }
    .logo-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#1A1015;
      font-weight:900;
      background:
        linear-gradient(135deg, var(--brand), #F1C08D);
      box-shadow:0 12px 28px rgba(200,137,106,.24);
      flex:0 0 auto;
    }
    .logo-text{
      display:flex;
      flex-direction:column;
      line-height:1.14;
      min-width:0;
    }
    .logo-text strong{
      max-width:340px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      font-size:16px;
    }
    .logo-text span{
      margin-top:3px;
      color:var(--weak);
      font-size:12px;
      font-weight:600;
    }

    .main-nav{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      padding:6px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.035);
    }
    .main-nav a{
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:0 15px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:650;
      transition:background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease);
    }
    .main-nav a:hover{
      color:var(--text);
      background:rgba(255,255,255,.07);
      transform:translateY(-1px);
    }
    .main-nav a.active{
      color:#1B1116;
      background:linear-gradient(135deg, var(--brand), #EDC08F);
    }
    .header-action{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:16px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      color:var(--text);
    }
    .menu-toggle span{
      display:block;
      width:19px;
      height:2px;
      margin:5px auto;
      background:currentColor;
      border-radius:9px;
      transition:.25s var(--ease);
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:0 20px;
      border-radius:999px;
      font-weight:750;
      font-size:15px;
      transition:transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      color:#1B1116;
      background:linear-gradient(135deg, var(--brand), #EEC28E);
      box-shadow:0 16px 35px rgba(200,137,106,.22);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px rgba(200,137,106,.32)}
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.045);
      border:1px solid var(--line);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:var(--line-strong);background:rgba(200,137,106,.08)}
    .btn:active{transform:translateY(1px) scale(.99)}

    .hero{
      position:relative;
      min-height:720px;
      padding:88px 0 56px;
      display:flex;
      align-items:center;
      overflow:hidden;
      isolation:isolate;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(18,12,20,.94) 0%, rgba(18,12,20,.72) 52%, rgba(18,12,20,.92) 100%),
        url("/assets/images/backpic/back-1.jpg") center/cover no-repeat;
      z-index:-2;
      transform:scale(1.02);
      filter:saturate(.82) contrast(1.05);
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:0;
      opacity:.28;
      background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.8), transparent 82%);
      z-index:-1;
    }
    .hero-layout{
      display:grid;
      grid-template-columns:1.06fr .94fr;
      gap:54px;
      align-items:center;
    }
    .hero-copy{
      max-width:680px;
    }
    .brand-kicker{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:22px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.055);
      color:var(--muted);
      font-size:13px;
      font-weight:650;
    }
    .badge.safe{color:var(--safe);background:rgba(143,214,181,.09);border-color:rgba(143,214,181,.22)}
    .badge.warn{color:var(--brand-2);background:rgba(224,167,94,.09);border-color:rgba(224,167,94,.24)}
    .badge.purple{color:#D7C5FF;background:rgba(158,108,255,.1);border-color:rgba(158,108,255,.24)}
    .hero h1{
      margin:0;
      color:var(--text);
      font-size:clamp(32px, 5vw, 56px);
      line-height:1.13;
      font-weight:850;
      letter-spacing:-.045em;
      text-wrap:balance;
    }
    .hero-subtitle{
      margin:24px 0 0;
      max-width:660px;
      font-size:18px;
      color:#E4D9E0;
      line-height:1.85;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:34px;
    }
    .hero-notes{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:12px;
      margin-top:34px;
    }
    .note-card{
      min-height:92px;
      padding:16px;
      border-radius:20px;
      border:1px solid var(--line);
      background:rgba(33,23,35,.68);
      box-shadow:var(--shadow-soft);
    }
    .note-card b{
      display:block;
      color:var(--text);
      font-size:18px;
      line-height:1.2;
    }
    .note-card span{
      display:block;
      margin-top:8px;
      color:var(--weak);
      font-size:13px;
      line-height:1.5;
    }

    .visual-stack{
      position:relative;
      min-height:520px;
    }
    .cover-panel{
      position:absolute;
      border-radius:30px;
      overflow:hidden;
      border:1px solid var(--line);
      background:var(--panel);
      box-shadow:var(--shadow);
    }
    .cover-panel img{
      width:100%;
      height:100%;
      object-fit:cover;
      filter:saturate(.78) contrast(1.02);
    }
    .cover-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(18,12,20,.05), rgba(18,12,20,.86));
    }
    .panel-main{
      width:72%;
      height:390px;
      right:8%;
      top:28px;
      transform:rotate(2deg);
    }
    .panel-sub{
      width:50%;
      height:260px;
      left:0;
      bottom:18px;
      transform:rotate(-5deg);
    }
    .floating-board{
      position:absolute;
      right:0;
      bottom:0;
      width:min(360px, 78%);
      padding:22px;
      border-radius:26px;
      border:1px solid rgba(255,255,255,.12);
      background:linear-gradient(180deg, rgba(42,29,44,.92), rgba(23,16,25,.92));
      box-shadow:var(--shadow);
      backdrop-filter:blur(16px);
    }
    .board-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      margin-bottom:18px;
    }
    .board-title{
      color:var(--text);
      font-weight:800;
      line-height:1.25;
    }
    .status-pill{
      color:var(--safe);
      font-size:12px;
      padding:5px 9px;
      border-radius:999px;
      background:rgba(143,214,181,.09);
      border:1px solid rgba(143,214,181,.22);
      flex:0 0 auto;
    }
    .mini-lines{display:grid;gap:10px}
    .mini-line{
      height:12px;
      border-radius:99px;
      background:linear-gradient(90deg, rgba(200,137,106,.75), rgba(158,108,255,.45), rgba(255,255,255,.08));
    }
    .mini-line:nth-child(2){width:82%;opacity:.78}
    .mini-line:nth-child(3){width:62%;opacity:.58}
    .board-meta{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-top:18px;
    }

    .feature-layout{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:24px;
      align-items:stretch;
    }
    .feature-major{
      min-height:520px;
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:var(--panel);
      box-shadow:var(--shadow-soft);
    }
    .feature-major img{
      width:100%;
      height:100%;
      min-height:520px;
      object-fit:cover;
      filter:saturate(.74) brightness(.82);
    }
    .feature-major .overlay{
      position:absolute;
      inset:0;
      padding:34px;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      background:linear-gradient(180deg, rgba(18,12,20,.05), rgba(18,12,20,.88) 68%);
    }
    .feature-major h2{
      margin:12px 0 0;
      color:var(--text);
      font-size:32px;
      line-height:1.2;
    }
    .feature-major p{
      margin:14px 0 0;
      max-width:590px;
      color:#E0D4DE;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .card{
      position:relative;
      border:1px solid var(--line);
      background:linear-gradient(180deg, rgba(42,29,44,.9), rgba(33,23,35,.92));
      border-radius:var(--radius-lg);
      padding:24px;
      box-shadow:var(--shadow-soft);
      transition:transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease);
    }
    .card:hover{
      transform:translateY(-4px);
      border-color:var(--line-strong);
      background:linear-gradient(180deg, rgba(50,34,54,.96), rgba(33,23,35,.98));
      box-shadow:0 20px 54px rgba(0,0,0,.32);
    }
    .icon{
      width:44px;
      height:44px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:var(--brand);
      background:rgba(200,137,106,.1);
      border:1px solid rgba(200,137,106,.2);
      margin-bottom:18px;
      font-weight:900;
    }
    .card h3{
      margin:0;
      color:var(--text);
      font-size:20px;
      line-height:1.3;
    }
    .card p{
      margin:10px 0 0;
      color:var(--weak);
      font-size:15px;
      line-height:1.7;
    }

    .updates{
      background:
        radial-gradient(circle at 80% 10%, rgba(200,137,106,.1), transparent 35%),
        linear-gradient(180deg, rgba(255,255,255,.02), transparent);
      border-top:1px solid var(--line);
      border-bottom:1px solid var(--line);
    }
    .updates-layout{
      display:grid;
      grid-template-columns:280px 1fr;
      gap:28px;
      align-items:start;
    }
    .timeline-card{
      position:sticky;
      top:104px;
      padding:26px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:rgba(33,23,35,.72);
      box-shadow:var(--shadow-soft);
    }
    .timeline-card h3{
      margin:0;
      color:var(--text);
      font-size:22px;
    }
    .timeline-card p{
      margin:12px 0 0;
      color:var(--weak);
      font-size:15px;
    }
    .timeline-list{
      margin:22px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:13px;
    }
    .timeline-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
      font-size:14px;
    }
    .timeline-list li::before{
      content:"";
      width:8px;
      height:8px;
      margin-top:9px;
      border-radius:50%;
      background:var(--brand);
      box-shadow:0 0 0 5px rgba(200,137,106,.11);
      flex:0 0 auto;
    }
    .post-list{
      display:grid;
      gap:16px;
    }
    .post-card{
      display:grid;
      grid-template-columns:148px 1fr auto;
      gap:20px;
      align-items:center;
      padding:22px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:rgba(42,29,44,.72);
      transition:transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
    }
    .post-card:hover{
      transform:translateY(-3px);
      border-color:var(--line-strong);
      background:rgba(51,35,56,.84);
    }
    .post-date{
      padding:14px;
      border-radius:18px;
      color:var(--brand-2);
      background:rgba(224,167,94,.08);
      border:1px solid rgba(224,167,94,.16);
      text-align:center;
      font-size:13px;
      font-weight:750;
    }
    .post-body h3{
      margin:0;
      color:var(--text);
      font-size:21px;
      line-height:1.35;
    }
    .post-body h3 a{transition:color .2s var(--ease)}
    .post-body h3 a:hover{color:var(--brand)}
    .post-body p{
      margin:9px 0 0;
      color:var(--weak);
      font-size:15px;
      line-height:1.65;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .post-meta{
      margin-top:13px;
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:25px;
      padding:0 9px;
      border-radius:999px;
      color:#D9C8FF;
      background:rgba(158,108,255,.09);
      border:1px solid rgba(158,108,255,.18);
      font-size:12px;
      font-weight:650;
    }
    .read-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-width:108px;
      min-height:40px;
      border-radius:999px;
      color:var(--brand);
      border:1px solid rgba(200,137,106,.28);
      background:rgba(200,137,106,.07);
      font-size:14px;
      font-weight:750;
      transition:.25s var(--ease);
    }
    .read-link:hover{
      color:#1B1116;
      background:linear-gradient(135deg, var(--brand), #EEC28E);
      transform:translateY(-2px);
    }
    .empty-state{
      padding:42px;
      border-radius:var(--radius-xl);
      border:1px dashed rgba(200,137,106,.32);
      background:rgba(42,29,44,.56);
      text-align:center;
    }
    .empty-icon{
      width:58px;
      height:58px;
      margin:0 auto 16px;
      border-radius:22px;
      display:grid;
      place-items:center;
      color:var(--brand-2);
      background:rgba(224,167,94,.09);
      border:1px solid rgba(224,167,94,.18);
      font-size:24px;
    }
    .empty-state p{
      margin:0 0 20px;
      color:var(--weak);
    }

    .process-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:18px;
      counter-reset:step;
    }
    .step-card{
      counter-increment:step;
      position:relative;
      padding:24px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:var(--panel);
      min-height:210px;
    }
    .step-card::before{
      content:"0" counter(step);
      display:inline-grid;
      place-items:center;
      width:46px;
      height:46px;
      border-radius:17px;
      color:#1B1116;
      background:linear-gradient(135deg, var(--brand), #EEC28E);
      font-weight:900;
      margin-bottom:22px;
    }
    .step-card::after{
      content:"";
      position:absolute;
      top:47px;
      right:-18px;
      width:18px;
      height:1px;
      background:rgba(200,137,106,.38);
    }
    .step-card:last-child::after{display:none}
    .step-card h3{margin:0;color:var(--text);font-size:20px}
    .step-card p{margin:10px 0 0;color:var(--weak);font-size:15px;line-height:1.7}

    .proof-band{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:
        linear-gradient(90deg, rgba(18,12,20,.92), rgba(33,23,35,.78)),
        url("/assets/images/backpic/back-2.jpg") center/cover no-repeat;
      padding:34px;
      box-shadow:var(--shadow-soft);
    }
    .proof-grid{
      display:grid;
      grid-template-columns:1.1fr repeat(3, .7fr);
      gap:22px;
      align-items:center;
    }
    .proof-title h2{
      margin:10px 0 0;
      color:var(--text);
      font-size:30px;
      line-height:1.22;
    }
    .proof-title p{margin:12px 0 0;color:var(--weak)}
    .metric{
      padding:22px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.055);
    }
    .metric strong{
      display:block;
      color:var(--text);
      font-size:28px;
      line-height:1.1;
    }
    .metric span{
      display:block;
      margin-top:8px;
      color:var(--weak);
      font-size:13px;
    }

    .gallery-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:18px;
    }
    .cover-card{
      position:relative;
      min-height:310px;
      overflow:hidden;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:var(--panel);
      box-shadow:var(--shadow-soft);
      transition:.25s var(--ease);
    }
    .cover-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
    .cover-card img{
      width:100%;
      height:100%;
      min-height:310px;
      object-fit:cover;
      filter:saturate(.72) brightness(.84);
      transition:transform .45s var(--ease);
    }
    .cover-card:hover img{transform:scale(1.04)}
    .cover-card .cover-info{
      position:absolute;
      inset:auto 0 0;
      padding:24px;
      background:linear-gradient(180deg, transparent, rgba(18,12,20,.92));
    }
    .cover-info h3{
      margin:0;
      color:var(--text);
      font-size:21px;
      line-height:1.3;
    }
    .cover-info p{
      margin:9px 0 0;
      color:#D8CDD8;
      font-size:14px;
      line-height:1.65;
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:34px;
      align-items:start;
    }
    .faq-intro{
      position:sticky;
      top:104px;
    }
    .faq-list{
      display:grid;
      gap:14px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      background:rgba(42,29,44,.7);
      overflow:hidden;
      transition:border-color .25s var(--ease), background .25s var(--ease);
    }
    .faq-item[open]{
      border-color:var(--line-strong);
      background:rgba(51,35,56,.82);
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:20px 22px;
      color:var(--text);
      font-weight:750;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";
      width:30px;
      height:30px;
      display:grid;
      place-items:center;
      flex:0 0 auto;
      border-radius:999px;
      color:var(--brand);
      background:rgba(200,137,106,.09);
      border:1px solid rgba(200,137,106,.18);
      font-size:20px;
      line-height:1;
    }
    .faq-item[open] summary::after{content:"−"}
    .faq-item p{
      margin:0;
      padding:0 22px 22px;
      color:var(--weak);
      font-size:15px;
    }

    .feedback{
      position:relative;
    }
    .feedback-panel{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:28px;
      padding:34px;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:
        radial-gradient(circle at 0% 0%, rgba(200,137,106,.13), transparent 35%),
        linear-gradient(180deg, rgba(42,29,44,.92), rgba(33,23,35,.92));
      box-shadow:var(--shadow);
    }
    .feedback-copy h2{
      margin:14px 0 0;
      color:var(--text);
      font-size:32px;
      line-height:1.22;
    }
    .feedback-copy p{
      margin:14px 0 0;
      color:var(--weak);
    }
    .contact-list{
      margin:24px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .contact-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
      font-size:15px;
    }
    .contact-list li::before{
      content:"✓";
      color:var(--safe);
      font-weight:900;
    }
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .form-field{
      display:grid;
      gap:8px;
    }
    .form-field.full{grid-column:1/-1}
    label{
      color:var(--text);
      font-size:14px;
      font-weight:700;
    }
    input,select,textarea{
      width:100%;
      border:1px solid rgba(255,255,255,.1);
      border-radius:16px;
      background:#171019;
      color:var(--text);
      padding:13px 14px;
      min-height:48px;
      transition:border-color .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
    }
    textarea{min-height:128px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#7F7281}
    input:focus,select:focus,textarea:focus{
      outline:none;
      border-color:rgba(200,137,106,.72);
      box-shadow:0 0 0 4px rgba(200,137,106,.12);
      background:#1B121D;
    }
    .form-foot{
      grid-column:1/-1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      margin-top:4px;
    }
    .privacy-note{
      color:var(--weak);
      font-size:13px;
      line-height:1.55;
    }

    .site-footer{
      background:#0E090F;
      border-top:1px solid var(--line);
      padding:48px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr .85fr;
      gap:32px;
      align-items:start;
    }
    .footer-logo{
      color:var(--text);
      font-size:18px;
      font-weight:850;
      letter-spacing:-.02em;
    }
    .footer-desc{
      margin:12px 0 0;
      max-width:480px;
      color:var(--weak);
      font-size:14px;
    }
    .footer-col h3{
      margin:0 0 14px;
      color:var(--text);
      font-size:15px;
    }
    .footer-links{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:var(--weak);
      font-size:14px;
      transition:color .2s var(--ease);
    }
    .footer-links a:hover{color:var(--brand)}
    .copyright{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid var(--line);
      color:#867887;
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
    }

    @media (max-width:1024px){
      .container{width:min(var(--container), calc(100% - 48px))}
      .nav-wrap{gap:14px}
      .main-nav a{padding:0 11px}
      .header-action .btn{display:none}
      .hero{min-height:auto;padding:76px 0 48px}
      .hero-layout,.feature-layout,.updates-layout,.faq-wrap,.feedback-panel{grid-template-columns:1fr}
      .visual-stack{min-height:450px}
      .timeline-card,.faq-intro{position:relative;top:auto}
      .process-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
      .step-card::after{display:none}
      .proof-grid{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }

    @media (max-width:768px){
      .container{width:min(var(--container), calc(100% - 32px))}
      .section{padding:66px 0}
      .section-tight{padding:56px 0}
      .age-strip .container{justify-content:flex-start;text-align:left}
      .main-nav{
        position:fixed;
        left:16px;
        right:16px;
        top:120px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:12px;
        background:rgba(33,23,35,.98);
        box-shadow:var(--shadow);
      }
      .main-nav.open{display:flex}
      .main-nav a{justify-content:center;min-height:46px}
      .menu-toggle{display:block}
      .menu-open .menu-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
      .menu-open .menu-toggle span:nth-child(2){opacity:0}
      .menu-open .menu-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
      .logo-text strong{max-width:210px}
      .hero-notes{grid-template-columns:1fr}
      .hero-actions .btn{width:100%}
      .visual-stack{min-height:380px}
      .panel-main{width:80%;height:300px;right:0}
      .panel-sub{width:56%;height:200px}
      .floating-board{width:88%;padding:18px}
      .feature-grid,.gallery-grid,.form-grid{grid-template-columns:1fr}
      .feature-major,.feature-major img{min-height:420px}
      .section-head{display:block}
      .post-card{grid-template-columns:1fr;gap:14px}
      .post-date{text-align:left}
      .read-link{width:100%}
      .process-grid,.proof-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .form-foot{display:grid}
      .form-foot .btn{width:100%}
    }

    @media (max-width:520px){
      .nav-wrap{min-height:66px}
      .logo-mark{width:38px;height:38px;border-radius:14px}
      .logo-text strong{max-width:170px;font-size:14px}
      .hero{padding:58px 0 40px}
      .hero-subtitle{font-size:16px}
      .badge{font-size:12px}
      .card,.feedback-panel,.proof-band{padding:20px}
      .feature-major .overlay{padding:22px}
      .feature-major h2,.feedback-copy h2{font-size:26px}
      .empty-state{padding:28px 18px}
      .copyright{display:grid}
    }

/* roulang page: article */
:root{
      --bg:#120C14;
      --bg-2:#171019;
      --panel:#211723;
      --panel-2:#2A1D2C;
      --panel-3:#332338;
      --line:rgba(255,255,255,.08);
      --line-strong:rgba(200,137,106,.38);
      --brand:#C8896A;
      --brand-2:#E0A75E;
      --violet:#9E6CFF;
      --text:#FFF7EF;
      --muted:#D8CDD8;
      --weak:#9F92A0;
      --safe:#8FD6B5;
      --danger:#E38B7D;
      --shadow:0 24px 70px rgba(0,0,0,.34);
      --shadow-soft:0 14px 42px rgba(0,0,0,.25);
      --radius-xl:30px;
      --radius-lg:24px;
      --radius-md:18px;
      --radius-sm:14px;
      --container:1180px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      color:var(--muted);
      background:
        radial-gradient(circle at 12% 8%, rgba(158,108,255,.18), transparent 30%),
        radial-gradient(circle at 88% 18%, rgba(200,137,106,.16), transparent 32%),
        linear-gradient(180deg, #120C14 0%, #171019 48%, #100A12 100%);
      line-height:1.78;
      overflow-x:hidden;
    }
    body.menu-open{overflow:hidden}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(200,137,106,.35);color:var(--text)}

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible{
      outline:3px solid rgba(200,137,106,.42);
      outline-offset:3px;
    }

    .container{
      width:min(var(--container), calc(100% - 64px));
      margin:0 auto;
    }

    .section{padding:92px 0}
    .section-tight{padding:68px 0}

    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.045);
      color:var(--brand-2);
      font-size:13px;
      line-height:1.2;
      font-weight:650;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:999px;
      background:var(--brand-2);
      box-shadow:0 0 0 5px rgba(224,167,94,.12);
    }

    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:28px;
      margin-bottom:34px;
    }
    .section-title{
      margin:14px 0 0;
      color:var(--text);
      font-size:clamp(26px, 3vw, 34px);
      line-height:1.22;
      letter-spacing:-.02em;
      font-weight:780;
    }
    .section-desc{
      margin:14px 0 0;
      color:var(--weak);
      max-width:680px;
      font-size:16px;
    }
    .soft-divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.12), transparent);
    }

    .age-strip{
      background:rgba(14,9,15,.78);
      border-bottom:1px solid var(--line);
      color:var(--weak);
      font-size:13px;
    }
    .age-strip .container{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      text-align:center;
    }
    .age-dot{
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--brand-2);
      box-shadow:0 0 0 5px rgba(224,167,94,.12);
      flex:0 0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(18,12,20,.86);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
    }
    .nav-wrap{
      min-height:74px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      color:var(--text);
      font-weight:800;
      letter-spacing:-.02em;
    }
    .logo-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#1A1015;
      font-weight:900;
      background:linear-gradient(135deg, var(--brand), #F1C08D);
      box-shadow:0 12px 28px rgba(200,137,106,.24);
      flex:0 0 auto;
    }
    .logo-text{
      display:flex;
      flex-direction:column;
      line-height:1.14;
      min-width:0;
    }
    .logo-text strong{
      max-width:340px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      font-size:16px;
    }
    .logo-text span{
      margin-top:3px;
      color:var(--weak);
      font-size:12px;
      font-weight:600;
    }
    .main-nav{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      padding:6px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.035);
    }
    .main-nav a{
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:0 15px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:650;
      transition:background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease);
    }
    .main-nav a:hover{
      color:var(--text);
      background:rgba(255,255,255,.07);
      transform:translateY(-1px);
    }
    .main-nav a.active{
      color:#1B1116;
      background:linear-gradient(135deg, var(--brand), #EDC08F);
    }
    .header-action{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:16px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      color:var(--text);
    }
    .menu-toggle span{
      display:block;
      width:19px;
      height:2px;
      margin:5px auto;
      background:currentColor;
      border-radius:9px;
      transition:.25s var(--ease);
    }
    .menu-open .menu-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .menu-open .menu-toggle span:nth-child(2){opacity:0}
    .menu-open .menu-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:0 20px;
      border-radius:999px;
      font-weight:750;
      font-size:15px;
      transition:transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      color:#1B1116;
      background:linear-gradient(135deg, var(--brand), #EEC28E);
      box-shadow:0 16px 35px rgba(200,137,106,.22);
    }
    .btn-primary:hover{
      color:#1B1116;
      transform:translateY(-2px);
      box-shadow:0 20px 44px rgba(200,137,106,.32);
    }
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.045);
      border:1px solid var(--line);
    }
    .btn-secondary:hover{
      color:var(--text);
      transform:translateY(-2px);
      border-color:var(--line-strong);
      background:rgba(200,137,106,.08);
    }
    .btn:active{transform:translateY(1px) scale(.99)}

    .badge-soft,
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:6px 10px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.045);
      color:var(--muted);
      font-size:12px;
      font-weight:700;
      line-height:1.2;
    }
    .badge-soft.warning{
      color:var(--brand-2);
      border-color:rgba(224,167,94,.22);
      background:rgba(224,167,94,.08);
    }
    .badge-soft.safe{
      color:var(--safe);
      border-color:rgba(143,214,181,.2);
      background:rgba(143,214,181,.07);
    }
    .badge-soft.violet{
      color:#C9B4FF;
      border-color:rgba(158,108,255,.22);
      background:rgba(158,108,255,.08);
    }

    .article-hero{
      position:relative;
      padding:54px 0 72px;
      overflow:hidden;
      isolation:isolate;
    }
    .article-hero::before{
      content:"";
      position:absolute;
      inset:0;
      z-index:-2;
      background:
        linear-gradient(180deg, rgba(18,12,20,.38), rgba(18,12,20,.95)),
        url("/assets/images/backpic/back-2.jpg") center/cover no-repeat;
      opacity:.72;
      filter:saturate(.92);
    }
    .article-hero::after{
      content:"";
      position:absolute;
      width:460px;
      height:460px;
      right:-160px;
      top:20px;
      z-index:-1;
      border-radius:50%;
      background:radial-gradient(circle, rgba(200,137,106,.18), transparent 62%);
      filter:blur(2px);
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      margin:0 0 26px;
      color:var(--weak);
      font-size:13px;
    }
    .breadcrumb a{
      color:var(--muted);
      transition:color .25s var(--ease);
    }
    .breadcrumb a:hover{color:var(--brand)}
    .breadcrumb .current{
      color:var(--brand-2);
      max-width:520px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .breadcrumb .sep{color:rgba(255,255,255,.25)}
    .article-head-grid{
      display:grid;
      grid-template-columns:minmax(0, 1.12fr) minmax(320px, .88fr);
      gap:38px;
      align-items:end;
    }
    .article-kicker{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      margin-bottom:18px;
    }
    .article-title{
      margin:0;
      max-width:900px;
      color:var(--text);
      font-size:clamp(30px, 5vw, 54px);
      line-height:1.14;
      font-weight:820;
      letter-spacing:-.035em;
      text-wrap:balance;
    }
    .article-summary{
      margin:20px 0 0;
      max-width:760px;
      color:var(--muted);
      font-size:17px;
      line-height:1.86;
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .cover-card{
      position:relative;
      min-height:360px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      background:var(--panel-2);
    }
    .cover-card img{
      width:100%;
      height:100%;
      min-height:360px;
      object-fit:cover;
      filter:saturate(.82) contrast(1.03);
    }
    .cover-card::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(18,12,20,.02), rgba(18,12,20,.78)),
        radial-gradient(circle at 12% 12%, rgba(158,108,255,.18), transparent 36%);
    }
    .cover-note{
      position:absolute;
      left:22px;
      right:22px;
      bottom:22px;
      z-index:2;
      padding:18px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(18,12,20,.66);
      backdrop-filter:blur(14px);
    }
    .cover-note strong{
      display:block;
      color:var(--text);
      font-size:18px;
      line-height:1.35;
    }
    .cover-note span{
      display:block;
      margin-top:6px;
      color:var(--weak);
      font-size:13px;
      line-height:1.6;
    }

    .article-layout{
      display:grid;
      grid-template-columns:minmax(0, 790px) 320px;
      gap:38px;
      align-items:start;
    }
    .reader-card,
    .side-card,
    .info-card,
    .empty-state,
    .faq-item,
    .feedback-card{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg, rgba(42,29,44,.9), rgba(33,23,35,.92));
      box-shadow:var(--shadow-soft);
    }
    .reader-card{
      padding:42px;
      overflow:hidden;
    }
    .article-content{
      color:var(--muted);
      font-size:17px;
      line-height:1.88;
      word-break:break-word;
    }
    .article-content h2,
    .article-content h3,
    .article-content h4{
      color:var(--text);
      line-height:1.35;
      letter-spacing:-.02em;
      font-weight:780;
    }
    .article-content h2{
      margin:44px 0 16px;
      font-size:29px;
      padding-top:6px;
    }
    .article-content h3{
      margin:34px 0 14px;
      font-size:23px;
    }
    .article-content h4{
      margin:26px 0 12px;
      font-size:19px;
    }
    .article-content p{margin:0 0 22px}
    .article-content a{
      color:var(--brand);
      border-bottom:1px solid rgba(200,137,106,.35);
      transition:color .25s var(--ease), border-color .25s var(--ease);
    }
    .article-content a:hover{
      color:#F0BE92;
      border-color:#F0BE92;
    }
    .article-content ul,
    .article-content ol{
      margin:16px 0 24px;
      padding-left:1.35em;
    }
    .article-content li{margin:8px 0}
    .article-content blockquote{
      margin:30px 0;
      padding:22px 24px;
      border-left:4px solid var(--brand);
      border-radius:0 var(--radius-md) var(--radius-md) 0;
      background:rgba(255,255,255,.045);
      color:var(--text);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.04);
    }
    .article-content img{
      max-width:100%;
      height:auto;
      margin:28px auto;
      border-radius:22px;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .article-content figure{margin:30px 0}
    .article-content figcaption{
      margin-top:10px;
      text-align:center;
      color:var(--weak);
      font-size:13px;
    }
    .article-content table{
      width:100%;
      border-collapse:collapse;
      margin:26px 0;
      overflow:hidden;
      border-radius:16px;
      border:1px solid var(--line);
      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);
      color:var(--muted);
    }
    .article-content th{
      color:var(--text);
      background:rgba(255,255,255,.06);
      font-weight:760;
    }
    .article-content tr:last-child td{border-bottom:0}
    .article-content code{
      padding:2px 7px;
      border-radius:8px;
      background:rgba(255,255,255,.08);
      color:#F1C08D;
      font-size:.92em;
    }
    .article-content pre{
      margin:26px 0;
      padding:20px;
      overflow:auto;
      border-radius:18px;
      border:1px solid var(--line);
      background:#0E0910;
      color:var(--muted);
    }
    .article-content pre code{
      padding:0;
      background:transparent;
      color:inherit;
    }

    .empty-state{
      padding:44px 30px;
      text-align:center;
    }
    .empty-icon{
      width:64px;
      height:64px;
      margin:0 auto 18px;
      display:grid;
      place-items:center;
      border-radius:22px;
      background:rgba(224,167,94,.1);
      border:1px solid rgba(224,167,94,.2);
      color:var(--brand-2);
      font-size:30px;
    }
    .empty-state h2{
      margin:0;
      color:var(--text);
      font-size:28px;
      line-height:1.3;
    }
    .empty-state p{
      margin:12px auto 24px;
      max-width:520px;
      color:var(--weak);
    }

    .article-side{
      position:sticky;
      top:96px;
      display:grid;
      gap:16px;
    }
    .side-card{
      padding:24px;
    }
    .side-card h2,
    .side-card h3{
      margin:0 0 14px;
      color:var(--text);
      font-size:20px;
      line-height:1.35;
      font-weight:780;
    }
    .side-card p{
      margin:0;
      color:var(--weak);
      font-size:14px;
      line-height:1.7;
    }
    .side-list{
      display:grid;
      gap:12px;
      margin:16px 0 0;
      padding:0;
      list-style:none;
    }
    .side-list li{
      display:flex;
      justify-content:space-between;
      gap:14px;
      padding:12px 0;
      border-top:1px solid var(--line);
      color:var(--muted);
      font-size:14px;
    }
    .side-list span:first-child{color:var(--weak)}
    .side-list span:last-child{
      color:var(--text);
      text-align:right;
      max-width:170px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .notice-box{
      margin-top:16px;
      padding:16px;
      border-radius:18px;
      border:1px solid rgba(224,167,94,.2);
      background:rgba(224,167,94,.075);
      color:var(--brand-2);
      font-size:13px;
      line-height:1.65;
    }

    .quick-actions{
      display:grid;
      gap:10px;
      margin-top:18px;
    }
    .quick-actions .btn{
      width:100%;
      min-height:44px;
    }

    .updates-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:22px;
    }
    .info-card{
      padding:26px;
      transition:transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
    }
    .info-card:hover{
      transform:translateY(-3px);
      border-color:var(--line-strong);
      background:linear-gradient(180deg, rgba(51,35,56,.95), rgba(33,23,35,.92));
    }
    .info-card.feature{
      min-height:260px;
      background:
        linear-gradient(180deg, rgba(42,29,44,.76), rgba(33,23,35,.95)),
        url("/assets/images/coverpic/cover-3.webp") center/cover no-repeat;
      overflow:hidden;
      position:relative;
    }
    .info-card.feature::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg, rgba(18,12,20,.62), rgba(18,12,20,.2));
      pointer-events:none;
    }
    .info-card > *{position:relative;z-index:1}
    .info-card h3{
      margin:16px 0 10px;
      color:var(--text);
      font-size:22px;
      line-height:1.36;
      font-weight:780;
    }
    .info-card p{
      margin:0;
      color:var(--weak);
      font-size:15px;
      line-height:1.72;
    }
    .mini-list{
      display:grid;
      gap:14px;
    }
    .mini-card{
      padding:20px;
      border-radius:20px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.035);
      transition:transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
    }
    .mini-card:hover{
      transform:translateY(-2px);
      border-color:rgba(200,137,106,.28);
      background:rgba(200,137,106,.055);
    }
    .mini-card h3{
      margin:0 0 8px;
      color:var(--text);
      font-size:18px;
      line-height:1.4;
      font-weight:760;
    }
    .mini-card p{
      margin:0;
      color:var(--weak);
      font-size:14px;
      line-height:1.7;
    }

    .guide-strip{
      display:grid;
      grid-template-columns:repeat(4, 1fr);
      gap:16px;
      counter-reset:guide;
    }
    .guide-item{
      position:relative;
      padding:24px;
      min-height:190px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.038);
      transition:transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
      counter-increment:guide;
    }
    .guide-item:hover{
      transform:translateY(-3px);
      border-color:var(--line-strong);
      background:rgba(200,137,106,.055);
    }
    .guide-item::before{
      content:"0" counter(guide);
      display:grid;
      place-items:center;
      width:42px;
      height:42px;
      margin-bottom:18px;
      border-radius:15px;
      color:#1B1116;
      font-weight:900;
      background:linear-gradient(135deg, var(--brand), #EEC28E);
      box-shadow:0 12px 26px rgba(200,137,106,.18);
    }
    .guide-item h3{
      margin:0 0 8px;
      color:var(--text);
      font-size:18px;
      line-height:1.35;
      font-weight:760;
    }
    .guide-item p{
      margin:0;
      color:var(--weak);
      font-size:14px;
      line-height:1.7;
    }

    .faq-grid{
      display:grid;
      gap:14px;
      max-width:900px;
    }
    .faq-item{
      overflow:hidden;
    }
    .faq-button{
      width:100%;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding:22px 24px;
      background:transparent;
      color:var(--text);
      text-align:left;
      font-weight:760;
      line-height:1.45;
      transition:background .25s var(--ease);
    }
    .faq-button:hover{background:rgba(255,255,255,.035)}
    .faq-button .icon{
      width:28px;
      height:28px;
      display:grid;
      place-items:center;
      flex:0 0 auto;
      border-radius:999px;
      border:1px solid var(--line);
      color:var(--brand);
      transition:transform .25s var(--ease), background .25s var(--ease);
    }
    .faq-item.open .faq-button .icon{
      transform:rotate(45deg);
      background:rgba(200,137,106,.1);
    }
    .faq-panel{
      display:none;
      padding:0 24px 22px;
      color:var(--weak);
      font-size:15px;
      line-height:1.75;
    }
    .faq-item.open{
      border-color:var(--line-strong);
    }
    .faq-item.open .faq-panel{display:block}

    .feedback-card{
      position:relative;
      overflow:hidden;
      padding:34px;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:28px;
      align-items:center;
    }
    .feedback-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 8% 12%, rgba(158,108,255,.16), transparent 34%),
        radial-gradient(circle at 92% 82%, rgba(200,137,106,.15), transparent 36%);
      pointer-events:none;
    }
    .feedback-card > *{position:relative;z-index:1}
    .feedback-copy h2{
      margin:14px 0 12px;
      color:var(--text);
      font-size:clamp(26px, 3vw, 34px);
      line-height:1.22;
      font-weight:800;
    }
    .feedback-copy p{
      margin:0;
      color:var(--weak);
      max-width:560px;
    }
    .feedback-form{
      display:grid;
      gap:14px;
    }
    .form-row{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .form-control,
    .form-select{
      min-height:48px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.1);
      background:#171019;
      color:var(--text);
      padding:12px 14px;
      transition:border-color .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
    }
    textarea.form-control{
      min-height:118px;
      resize:vertical;
    }
    .form-control::placeholder{color:rgba(216,205,216,.48)}
    .form-control:focus,
    .form-select:focus{
      border-color:rgba(200,137,106,.62);
      box-shadow:0 0 0 4px rgba(200,137,106,.12);
      background:#1A111C;
      color:var(--text);
      outline:0;
    }
    .form-hint{
      margin:0;
      color:var(--weak);
      font-size:12px;
      line-height:1.6;
    }

    .site-footer{
      padding:64px 0 28px;
      background:#0D080F;
      border-top:1px solid var(--line);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .7fr .7fr;
      gap:42px;
      align-items:start;
    }
    .footer-logo{
      color:var(--text);
      font-size:20px;
      line-height:1.35;
      font-weight:820;
      letter-spacing:-.02em;
    }
    .footer-desc{
      margin:14px 0 0;
      max-width:520px;
      color:var(--weak);
      font-size:14px;
      line-height:1.8;
    }
    .footer-col h3{
      margin:0 0 14px;
      color:var(--text);
      font-size:15px;
      font-weight:760;
    }
    .footer-links{
      display:grid;
      gap:10px;
      padding:0;
      margin:0;
      list-style:none;
    }
    .footer-links a{
      color:var(--weak);
      font-size:14px;
      transition:color .25s var(--ease), transform .25s var(--ease);
    }
    .footer-links a:hover{
      display:inline-block;
      color:var(--brand);
      transform:translateX(2px);
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      margin-top:42px;
      padding-top:22px;
      border-top:1px solid var(--line);
      color:rgba(216,205,216,.62);
      font-size:13px;
      flex-wrap:wrap;
    }

    @media (max-width: 1024px){
      .container{width:min(var(--container), calc(100% - 48px))}
      .header-action .btn{display:none}
      .article-head-grid,
      .article-layout,
      .updates-grid,
      .feedback-card{
        grid-template-columns:1fr;
      }
      .article-side{
        position:static;
        grid-template-columns:repeat(2, minmax(0,1fr));
      }
      .guide-strip{grid-template-columns:repeat(2,1fr)}
      .cover-card{min-height:300px}
      .cover-card img{min-height:300px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid > div:first-child{grid-column:1/-1}
    }

    @media (max-width: 768px){
      .container{width:min(var(--container), calc(100% - 32px))}
      .section{padding:64px 0}
      .section-tight{padding:52px 0}
      .nav-wrap{min-height:68px}
      .logo-text strong{max-width:210px}
      .main-nav{
        position:fixed;
        left:16px;
        right:16px;
        top:82px;
        z-index:70;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border-radius:22px;
        background:rgba(24,15,26,.98);
        box-shadow:var(--shadow);
      }
      .menu-open .main-nav{display:flex}
      .main-nav a{
        justify-content:center;
        min-height:46px;
      }
      .menu-toggle{display:block}
      .article-hero{padding:38px 0 56px}
      .breadcrumb .current{max-width:260px}
      .article-summary{font-size:16px}
      .reader-card{padding:26px}
      .article-content{font-size:16px}
      .article-content h2{font-size:25px}
      .article-content h3{font-size:21px}
      .article-side{grid-template-columns:1fr}
      .guide-strip{grid-template-columns:1fr}
      .feedback-card{padding:24px}
      .form-row{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid}
    }

    @media (max-width: 520px){
      .container{width:min(var(--container), calc(100% - 28px))}
      .age-strip .container{font-size:12px;line-height:1.55;padding:6px 0}
      .logo-mark{width:38px;height:38px;border-radius:14px}
      .logo-text span{display:none}
      .logo-text strong{max-width:176px;font-size:14px}
      .article-title{font-size:30px}
      .article-meta{gap:8px}
      .badge-soft,.tag{font-size:11px}
      .cover-card,
      .cover-card img{min-height:250px}
      .cover-note{left:14px;right:14px;bottom:14px;padding:14px;border-radius:18px}
      .reader-card{padding:22px 18px;border-radius:22px}
      .article-content p{margin-bottom:18px}
      .section-head{display:block}
      .btn{width:100%}
      .footer-logo{font-size:18px}
    }

/* 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}