/* roulang page: index */
:root{
      --bg: #120c10;
      --bg-2: #171016;
      --surface: #1e1419;
      --surface-2: #281a21;
      --surface-3: #33222b;
      --line: rgba(240, 224, 217, .12);
      --line-strong: rgba(240, 224, 217, .18);
      --text: #f7efe9;
      --muted: #c8b7b0;
      --muted-2: #a48f88;
      --primary: #9d3856;
      --primary-2: #c04d73;
      --accent: #c99763;
      --accent-2: #e1c09a;
      --shadow: 0 18px 45px rgba(0, 0, 0, .28);
      --shadow-soft: 0 10px 30px rgba(0, 0, 0, .18);
      --radius-xl: 24px;
      --radius-lg: 20px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1240px;
      --gap: 24px;
      --gap-lg: 32px;
      --ease: cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 20% 10%, rgba(157,56,86,.18), transparent 30%),
        radial-gradient(circle at 82% 0%, rgba(201,151,99,.12), transparent 22%),
        linear-gradient(180deg, #140d12 0%, #120c10 42%, #0f0a0d 100%);
      line-height:1.7;
      letter-spacing:.2px;
      min-height:100vh;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
      background-size: 34px 34px;
      opacity:.12;
      pointer-events:none;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.9), rgba(0,0,0,.55) 52%, rgba(0,0,0,.2));
    }
    a{
      color:var(--text);
      text-decoration:none;
      transition: color .2s var(--ease), transform .2s var(--ease), opacity .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
    }
    img{
      display:block;
      max-width:100%;
      height:auto;
    }
    button,input,textarea,select{
      font:inherit;
    }
    button{
      border:0;
      background:none;
      color:inherit;
      cursor:pointer;
    }
    :focus-visible{
      outline:2px solid rgba(225,192,154,.95);
      outline-offset:3px;
    }

    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }

    .skip-link{
      position:absolute;
      left:-999px;
      top:auto;
      width:1px;
      height:1px;
      overflow:hidden;
    }
    .skip-link:focus{
      left:16px;
      top:16px;
      width:auto;
      height:auto;
      padding:10px 14px;
      background:var(--surface-3);
      border:1px solid var(--line-strong);
      border-radius:999px;
      z-index:9999;
    }

    .topbar{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(19, 12, 16, .94);
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .topbar__inner{
      min-height:40px;
      display:flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      color:var(--muted);
      font-size:13px;
      padding:8px 0;
    }
    .topbar__badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:5px 10px;
      border-radius:999px;
      background:rgba(157,56,86,.18);
      color:#f5d8df;
      border:1px solid rgba(157,56,86,.25);
      font-size:12px;
      white-space:nowrap;
    }

    .site-header{
      position:sticky;
      top:40px;
      z-index:999;
      background:rgba(17, 11, 14, .96);
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .site-header__inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:16px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand__mark{
      width:42px;
      height:42px;
      border-radius:14px;
      background:
        linear-gradient(145deg, rgba(201,151,99,.22), rgba(157,56,86,.95));
      box-shadow: inset 0 1px 0 rgba(255,255,255,.1), 0 10px 24px rgba(0,0,0,.24);
      position:relative;
      flex:0 0 auto;
    }
    .brand__mark::after{
      content:"";
      position:absolute;
      inset:10px;
      border:1px solid rgba(255,255,255,.25);
      border-radius:11px;
    }
    .brand__text{
      display:flex;
      flex-direction:column;
      min-width:0;
    }
    .brand__name{
      font-size:18px;
      font-weight:800;
      line-height:1.15;
      letter-spacing:.3px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand__sub{
      color:var(--muted-2);
      font-size:12px;
      margin-top:3px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }

    .nav{
      display:flex;
      align-items:center;
      gap:18px;
    }
    .nav__list{
      display:flex;
      align-items:center;
      gap:10px;
      list-style:none;
      padding:0;
      margin:0;
    }
    .nav__link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid transparent;
      font-size:14px;
    }
    .nav__link:hover{
      color:var(--text);
      background:rgba(255,255,255,.03);
      border-color:rgba(255,255,255,.06);
      transform:translateY(-1px);
    }
    .nav__link.is-active{
      color:#fff;
      background:rgba(157,56,86,.18);
      border-color:rgba(157,56,86,.28);
    }

    .header-actions{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 18px;
      border-radius:999px;
      font-weight:700;
      font-size:14px;
      border:1px solid transparent;
      white-space:nowrap;
      box-shadow:none;
    }
    .btn:hover{
      transform:translateY(-1px);
      box-shadow:var(--shadow-soft);
    }
    .btn:active{
      transform:translateY(0);
    }
    .btn--primary{
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      border-color:rgba(255,255,255,.04);
      box-shadow: 0 12px 30px rgba(157,56,86,.22);
    }
    .btn--primary:hover{
      box-shadow: 0 14px 34px rgba(157,56,86,.28);
    }
    .btn--secondary{
      color:var(--text);
      background:rgba(255,255,255,.03);
      border-color:rgba(255,255,255,.09);
    }
    .btn--secondary:hover{
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.14);
    }
    .btn--ghost{
      color:var(--muted);
      background:transparent;
      border-color:rgba(255,255,255,.08);
    }
    .menu-btn{
      display:none;
      align-items:center;
      justify-content:center;
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
    }
    .menu-btn span{
      display:block;
      width:18px;
      height:2px;
      background:var(--text);
      position:relative;
      border-radius:2px;
    }
    .menu-btn span::before,
    .menu-btn span::after{
      content:"";
      position:absolute;
      left:0;
      width:18px;
      height:2px;
      background:var(--text);
      border-radius:2px;
    }
    .menu-btn span::before{top:-6px}
    .menu-btn span::after{top:6px}

    main{
      padding:22px 0 64px;
    }

    .hero{
      position:relative;
      margin-top:14px;
      padding:28px 0 6px;
    }
    .hero__panel{
      position:relative;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(145deg, rgba(22,14,18,.92), rgba(30,19,24,.88)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .hero__panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 16% 18%, rgba(201,151,99,.16), transparent 24%),
        linear-gradient(90deg, rgba(18,12,16,.92) 0%, rgba(18,12,16,.85) 40%, rgba(18,12,16,.65) 100%);
      pointer-events:none;
    }
    .hero__inner{
      position:relative;
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:24px;
      padding:34px;
      min-height:560px;
      align-items:stretch;
    }
    .hero__content{
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:18px;
      padding:18px 4px 18px 6px;
      max-width:640px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      width:fit-content;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      color:var(--accent-2);
      border:1px solid rgba(255,255,255,.08);
      font-size:13px;
      letter-spacing:.25px;
    }
    .hero h1{
      margin:0;
      font-size:clamp(40px, 5vw, 72px);
      line-height:1.02;
      letter-spacing:.2px;
      font-weight:900;
    }
    .hero__lead{
      margin:0;
      color:var(--muted);
      font-size:17px;
      max-width:56ch;
    }
    .hero__actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:6px;
    }
    .hero__chips{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:4px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:#f4e7e2;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      font-size:13px;
    }
    .hero__visual{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:16px;
      padding:8px 0 8px 10px;
    }
    .hero__media{
      position:relative;
      min-height:360px;
      border-radius:22px;
      overflow:hidden;
      background:
        linear-gradient(180deg, rgba(19,12,16,.12), rgba(19,12,16,.72)),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .hero__media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(0,0,0,.02), rgba(0,0,0,.46));
    }
    .hero__media-copy{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      z-index:1;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .hero__media-title{
      font-size:20px;
      font-weight:800;
      line-height:1.25;
      margin:0;
      text-shadow:0 8px 20px rgba(0,0,0,.32);
    }
    .hero__media-text{
      margin:0;
      color:#f0dfd8;
      font-size:14px;
      max-width:32ch;
    }
    .hero__cards{
      display:grid;
      grid-template-columns:repeat(3, 1fr);
      gap:12px;
    }
    .hero-mini{
      padding:14px 14px 12px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      min-height:104px;
    }
    .hero-mini__tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:4px 8px;
      border-radius:999px;
      background:rgba(157,56,86,.18);
      color:#f6dbe2;
      font-size:12px;
      border:1px solid rgba(157,56,86,.22);
      margin-bottom:10px;
    }
    .hero-mini h3{
      margin:0 0 6px;
      font-size:15px;
      line-height:1.35;
    }
    .hero-mini p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
    }

    .section{
      padding:30px 0 0;
    }
    .section--tight{
      padding-top:22px;
    }
    .section__head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:18px;
    }
    .section__title{
      margin:0;
      font-size:28px;
      line-height:1.15;
      font-weight:900;
      letter-spacing:.2px;
    }
    .section__desc{
      margin:6px 0 0;
      color:var(--muted);
      font-size:14px;
      max-width:62ch;
    }
    .section__link{
      color:var(--accent-2);
      border-bottom:1px solid rgba(225,192,154,.28);
      padding-bottom:2px;
      white-space:nowrap;
      font-size:14px;
    }
    .section__link:hover{
      color:#fff;
      border-bottom-color:rgba(255,255,255,.42);
    }

    .proof-grid{
      display:grid;
      grid-template-columns:repeat(3, 1fr);
      gap:16px;
    }
    .proof-card{
      padding:18px;
      border-radius:22px;
      background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.02));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .proof-card__kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:10px;
      color:var(--accent-2);
      font-size:12px;
      letter-spacing:.22px;
    }
    .proof-card h3{
      margin:0 0 8px;
      font-size:18px;
      line-height:1.25;
    }
    .proof-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
    }

    .feature-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap:18px;
    }
    .feature-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid rgba(255,255,255,.08);
      background:var(--surface);
      box-shadow:var(--shadow-soft);
      min-height:320px;
    }
    .feature-card--large{
      min-height:420px;
      background:
        linear-gradient(180deg, rgba(20,12,16,.04), rgba(20,12,16,.78)),
        url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
    }
    .feature-card--small{
      min-height:calc(50% - 9px);
      background:
        linear-gradient(180deg, rgba(20,12,16,.1), rgba(20,12,16,.72)),
        url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat;
    }
    .feature-card--small.alt{
      background:
        linear-gradient(180deg, rgba(20,12,16,.08), rgba(20,12,16,.72)),
        url('/assets/images/coverpic/cover-3.webp') center/cover no-repeat;
    }
    .feature-card::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(0,0,0,.05), rgba(0,0,0,.56));
      pointer-events:none;
    }
    .feature-card__body{
      position:relative;
      z-index:1;
      height:100%;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      padding:24px;
      gap:10px;
    }
    .feature-card__tag{
      display:inline-flex;
      align-items:center;
      width:fit-content;
      padding:5px 10px;
      border-radius:999px;
      background:rgba(157,56,86,.2);
      color:#f7dfe6;
      border:1px solid rgba(157,56,86,.25);
      font-size:12px;
    }
    .feature-card h3{
      margin:0;
      font-size:24px;
      line-height:1.2;
      max-width:18ch;
    }
    .feature-card p{
      margin:0;
      color:#f1e3de;
      max-width:42ch;
      font-size:14px;
      line-height:1.7;
    }
    .feature-card__meta{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      color:#f3dfd8;
      font-size:12px;
    }
    .feature-stack{
      display:grid;
      gap:18px;
    }

    .cards-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:18px;
    }
    .content-card{
      overflow:hidden;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.02));
      box-shadow:var(--shadow-soft);
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
    }
    .content-card:hover{
      transform:translateY(-3px);
      border-color:rgba(255,255,255,.14);
      box-shadow:0 22px 45px rgba(0,0,0,.26);
    }
    .content-card__media{
      aspect-ratio: 16 / 10;
      background:#28181f;
      overflow:hidden;
    }
    .content-card__media img{
      width:100%;
      height:100%;
      object-fit:cover;
      filter:saturate(1.02) contrast(1.03);
      transition: transform .35s var(--ease);
    }
    .content-card:hover .content-card__media img{
      transform:scale(1.03);
    }
    .content-card__body{
      padding:18px;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .content-card__tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      min-height:28px;
      padding:0 10px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      color:var(--accent-2);
      border:1px solid rgba(255,255,255,.08);
      font-size:12px;
    }
    .content-card h3{
      margin:0;
      font-size:18px;
      line-height:1.35;
    }
    .content-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
    }
    .content-card__foot{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top:4px;
      color:var(--muted-2);
      font-size:12px;
    }
    .read-link{
      color:#fff;
      font-weight:700;
      white-space:nowrap;
    }
    .read-link:hover{
      color:var(--accent-2);
    }

    .news-wrap{
      display:grid;
      grid-template-columns:1fr;
      gap:14px;
    }
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:14px;
      align-items:start;
      padding:18px;
      border-radius:20px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      transition: transform .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
    }
    .news-item:hover{
      transform:translateY(-2px);
      border-color:rgba(255,255,255,.13);
      background:rgba(255,255,255,.045);
    }
    .news-item__time{
      min-width:82px;
      padding-top:2px;
      color:var(--accent-2);
      font-size:13px;
      white-space:nowrap;
    }
    .news-item__content{
      min-width:0;
    }
    .news-item__meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:8px;
      color:var(--muted-2);
      font-size:12px;
    }
    .news-item h3{
      margin:0 0 8px;
      font-size:18px;
      line-height:1.35;
    }
    .news-item p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
    }
    .news-item__action{
      align-self:center;
      padding-left:10px;
    }
    .news-empty{
      padding:24px;
      border-radius:20px;
      border:1px dashed rgba(255,255,255,.14);
      background:rgba(255,255,255,.025);
      color:var(--muted);
      text-align:center;
      font-size:14px;
    }

    .faq-list{
      display:grid;
      gap:12px;
    }
    details.faq{
      border-radius:18px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    details.faq[open]{
      background:rgba(255,255,255,.05);
      border-color:rgba(255,255,255,.12);
    }
    details.faq summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      font-weight:800;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      color:var(--text);
    }
    details.faq summary::-webkit-details-marker{display:none}
    details.faq summary span{
      color:var(--accent-2);
      font-size:12px;
      font-weight:700;
      white-space:nowrap;
    }
    .faq__body{
      padding:0 20px 20px;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }

    .cta{
      margin-top:30px;
      padding:28px;
      border-radius:var(--radius-xl);
      background:
        radial-gradient(circle at 18% 22%, rgba(157,56,86,.2), transparent 32%),
        linear-gradient(135deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .cta__content{
      min-width:0;
      max-width:760px;
    }
    .cta__content h2{
      margin:0 0 10px;
      font-size:30px;
      line-height:1.18;
      font-weight:900;
    }
    .cta__content p{
      margin:0;
      color:var(--muted);
      font-size:15px;
      line-height:1.8;
    }
    .cta__actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      flex:0 0 auto;
    }

    .site-footer{
      margin-top:36px;
      padding:28px 0 34px;
      border-top:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.015), rgba(255,255,255,.01));
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.3fr .7fr .8fr;
      gap:20px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .footer-brand__name{
      font-size:22px;
      font-weight:900;
      line-height:1.2;
    }
    .footer-brand__desc{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
      max-width:48ch;
    }
    .footer-block h3{
      margin:0 0 12px;
      font-size:16px;
      font-weight:800;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
    }
    .footer-links a:hover{
      color:#fff;
      transform:translateX(2px);
    }
    .footer-note{
      margin-top:22px;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      flex-wrap:wrap;
      gap:12px 18px;
      justify-content:space-between;
      color:var(--muted-2);
      font-size:13px;
      line-height:1.8;
    }

    .section-card{
      padding:20px;
      border-radius:22px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }

    @media (max-width: 1199px){
      .hero__inner{grid-template-columns:1fr}
      .hero__visual{padding:0}
      .hero__media{min-height:320px}
      .hero__cards{grid-template-columns:repeat(3,1fr)}
      .proof-grid{grid-template-columns:1fr}
      .feature-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 991px){
      .nav{display:none}
      .menu-btn{display:inline-flex}
      .site-header__inner{gap:12px}
      .header-actions .btn--ghost{display:none}
      .hero__inner{padding:24px}
      .hero h1{font-size:clamp(36px, 7vw, 56px)}
      .cards-grid{grid-template-columns:1fr 1fr}
      .section__head{align-items:flex-start;flex-direction:column}
      .cta{flex-direction:column;align-items:flex-start}
    }
    @media (max-width: 767px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .site-header{top:36px}
      .hero{padding-top:18px}
      .hero__inner{padding:20px; min-height:auto}
      .hero__content{padding:0}
      .hero__cards{grid-template-columns:1fr}
      .cards-grid{grid-template-columns:1fr}
      .news-item{grid-template-columns:1fr; gap:10px}
      .news-item__time{min-width:0}
      .news-item__action{padding-left:0; align-self:flex-start}
      .footer-grid{grid-template-columns:1fr}
      .footer-note{flex-direction:column}
      .cta{padding:22px}
      .cta__content h2{font-size:24px}
      .section__title{font-size:24px}
      .hero__media-title{font-size:18px}
      .menu-panel{
        display:none;
      }
      .site-header.is-open .menu-panel{
        display:block;
      }
      .menu-panel{
        position:absolute;
        left:0;
        right:0;
        top:100%;
        background:rgba(18,12,16,.98);
        border-bottom:1px solid rgba(255,255,255,.08);
        box-shadow:0 18px 30px rgba(0,0,0,.24);
      }
      .menu-panel .nav__list{
        flex-direction:column;
        align-items:stretch;
        padding:14px 0 16px;
      }
      .menu-panel .nav__link{
        justify-content:space-between;
        border-radius:14px;
      }
      .site-header__inner{
        position:relative;
      }
    }
    @media (max-width: 575px){
      .brand__sub{display:none}
      .hero__panel{border-radius:20px}
      .hero__media{min-height:260px}
      .hero__content{gap:14px}
      .hero__lead{font-size:15px}
      .section{padding-top:24px}
      .section__title{font-size:22px}
      .btn{width:100%}
      .hero__actions,.cta__actions{width:100%}
      .hero__actions .btn,.cta__actions .btn{width:100%}
      .news-item{padding:16px}
      .content-card__body{padding:16px}
      .feature-card__body{padding:18px}
    }

/* roulang page: article */
:root{
      --bg:#120c10;
      --bg-2:#171016;
      --surface:#1e1419;
      --surface-2:#281a21;
      --surface-3:#33222b;
      --line:rgba(240,224,217,.12);
      --line-strong:rgba(240,224,217,.2);
      --text:#f7efe9;
      --muted:#c8b7b0;
      --muted-2:#a48f88;
      --primary:#9d3856;
      --primary-2:#c04d73;
      --accent:#c99763;
      --accent-2:#e1c09a;
      --shadow:0 18px 45px rgba(0,0,0,.28);
      --shadow-soft:0 10px 30px rgba(0,0,0,.18);
      --radius-xl:24px;
      --radius-lg:20px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1240px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 18% 12%,rgba(157,56,86,.18),transparent 30%),
        radial-gradient(circle at 85% 0,rgba(201,151,99,.1),transparent 24%),
        linear-gradient(180deg,#140d12 0%,#120c10 48%,#0f0a0d 100%);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      line-height:1.7;
      letter-spacing:.15px;
      min-height:100vh;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.1;
      background-image:
        linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(180deg,#000,rgba(0,0,0,.25));
    }
    a{
      color:var(--text);
      text-decoration:none;
      transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
    }
    a:hover{color:var(--accent-2)}
    img{display:block;max-width:100%;height:auto}
    button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}

    .topbar{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(19,12,16,.95);
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .topbar__inner{
      min-height:40px;
      display:flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding:8px 0;
      color:var(--muted);
      font-size:13px;
    }
    .topbar__badge{
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border:1px solid rgba(157,56,86,.28);
      border-radius:999px;
      color:#f5d8df;
      background:rgba(157,56,86,.18);
      font-size:12px;
      white-space:nowrap;
    }
    .site-header{
      position:sticky;
      top:40px;
      z-index:999;
      background:rgba(17,11,14,.96);
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .site-header__inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:16px 0;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand__mark{
      position:relative;
      flex:0 0 auto;
      width:42px;
      height:42px;
      border-radius:14px;
      background:linear-gradient(145deg,rgba(201,151,99,.22),rgba(157,56,86,.95));
      box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 10px 24px rgba(0,0,0,.24);
    }
    .brand__mark::after{
      content:"";
      position:absolute;
      inset:10px;
      border:1px solid rgba(255,255,255,.25);
      border-radius:11px;
    }
    .brand__text{display:flex;flex-direction:column;min-width:0}
    .brand__name{
      overflow:hidden;
      color:var(--text);
      font-size:18px;
      font-weight:800;
      line-height:1.15;
      letter-spacing:.3px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .brand__sub{
      overflow:hidden;
      margin-top:3px;
      color:var(--muted-2);
      font-size:12px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .nav{display:flex;align-items:center;gap:18px}
    .nav__list{
      display:flex;
      align-items:center;
      gap:10px;
      list-style:none;
      margin:0;
      padding:0;
    }
    .nav__link{
      display:inline-flex;
      align-items:center;
      padding:10px 14px;
      border:1px solid transparent;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
    }
    .nav__link:hover{
      color:var(--text);
      background:rgba(255,255,255,.03);
      border-color:rgba(255,255,255,.06);
      transform:translateY(-1px);
    }
    .nav__link.is-active{
      color:#fff;
      background:rgba(157,56,86,.18);
      border-color:rgba(157,56,86,.3);
    }
    .header-actions{display:flex;align-items:center;gap:12px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 18px;
      border:1px solid transparent;
      border-radius:999px;
      font-size:14px;
      font-weight:700;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-soft)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,.menu-btn:focus-visible,.faq-item summary:focus-visible{
      outline:3px solid rgba(225,192,154,.55);
      outline-offset:3px;
    }
    .btn--primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 12px 30px rgba(157,56,86,.22);
    }
    .btn--ghost{color:var(--muted);background:transparent;border-color:rgba(255,255,255,.1)}
    .menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px}
    .menu-btn span,.menu-btn span::before,.menu-btn span::after{
      display:block;
      width:19px;
      height:2px;
      margin:auto;
      border-radius:2px;
      background:var(--accent-2);
      content:"";
      transition:transform .2s var(--ease);
    }
    .menu-btn span::before{transform:translateY(-6px)}
    .menu-btn span::after{transform:translateY(4px)}

    .article-banner{
      position:relative;
      isolation:isolate;
      padding:86px 0 76px;
      background:
        linear-gradient(90deg,rgba(18,12,16,.98) 12%,rgba(18,12,16,.78) 48%,rgba(18,12,16,.46)),
        url("/assets/images/backpic/back-2.webp") center/cover;
      border-bottom:1px solid var(--line);
    }
    .article-banner::after{
      position:absolute;
      z-index:-1;
      right:8%;
      bottom:18%;
      width:180px;
      height:180px;
      border:1px solid rgba(201,151,99,.2);
      border-radius:50%;
      content:"";
      opacity:.45;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:9px;
      margin-bottom:22px;
      color:var(--muted-2);
      font-size:13px;
    }
    .breadcrumb a{color:var(--accent-2)}
    .breadcrumb__divider{color:var(--muted-2)}
    .article-banner__content{max-width:890px}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:16px;
      color:var(--accent-2);
      font-size:13px;
      font-weight:700;
      letter-spacing:1px;
    }
    .eyebrow::before{
      width:28px;
      height:1px;
      background:var(--accent);
      content:"";
    }
    .article-banner h1{
      max-width:860px;
      margin:0;
      color:#fff8f3;
      font-size:clamp(34px,5vw,64px);
      font-weight:850;
      line-height:1.15;
      letter-spacing:.2px;
    }
    .article-intro{
      max-width:760px;
      margin:22px 0 26px;
      color:#d7c8c1;
      font-size:17px;
    }
    .article-meta{display:flex;flex-wrap:wrap;gap:10px}
    .meta-chip,.tag{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:4px 11px;
      border:1px solid var(--line);
      border-radius:999px;
      color:var(--muted);
      background:rgba(255,255,255,.045);
      font-size:12px;
    }
    .meta-chip strong{margin-right:5px;color:var(--accent-2);font-weight:700}

    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) 260px;
      justify-content:center;
      gap:56px;
      padding:64px 0 76px;
    }
    .article-main{
      min-width:0;
      padding:42px clamp(22px,4vw,62px);
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:rgba(30,20,25,.88);
      box-shadow:var(--shadow);
    }
    .article-cover{
      width:100%;
      aspect-ratio:16/8;
      margin:0 0 38px;
      overflow:hidden;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
    }
    .article-cover img{width:100%;height:100%;object-fit:cover}
    .article-content{color:#e1d4ce;font-size:16px;line-height:1.95}
    .article-content h2,.article-content h3{
      color:#fff4ed;
      line-height:1.35;
      margin:38px 0 16px;
      font-weight:800;
    }
    .article-content h2{font-size:28px}
    .article-content h3{font-size:21px}
    .article-content p{margin:0 0 22px}
    .article-content ul,.article-content ol{margin:0 0 24px;padding-left:22px}
    .article-content li{margin:7px 0}
    .article-content blockquote{
      margin:30px 0;
      padding:20px 22px;
      border-left:3px solid var(--accent);
      border-radius:0 var(--radius-sm) var(--radius-sm) 0;
      color:#f2dfd2;
      background:rgba(201,151,99,.09);
    }
    .article-content img{
      width:100%;
      margin:30px 0;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
    }
    .article-content a{color:var(--accent-2);text-decoration:underline;text-underline-offset:4px}
    .article-content strong{color:#fff3eb}
    .not-found{
      padding:54px 20px;
      text-align:center;
      color:var(--muted);
    }
    .not-found h2{margin:0 0 16px;color:var(--text);font-size:26px}
    .article-end{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      margin-top:42px;
      padding-top:24px;
      border-top:1px solid var(--line);
    }
    .article-end__note{color:var(--muted-2);font-size:13px}
    .side-card{
      position:sticky;
      top:122px;
      align-self:start;
      padding:20px;
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      background:rgba(40,26,33,.78);
    }
    .side-card h2{margin:0 0 15px;font-size:16px;color:#fff1e9}
    .side-card__line{height:1px;margin:0 0 15px;background:var(--line)}
    .side-card a{
      display:block;
      padding:10px 0;
      border-bottom:1px solid rgba(255,255,255,.07);
      color:var(--muted);
      font-size:13px;
    }
    .side-card a:last-child{border-bottom:0}
    .side-card a:hover{padding-left:4px;color:var(--accent-2)}

    .related{
      padding:0 0 84px;
    }
    .section-heading{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:24px;
    }
    .section-heading h2{margin:0;color:#fff5ee;font-size:30px;line-height:1.25}
    .section-heading p{max-width:430px;margin:0;color:var(--muted);font-size:14px}
    .related-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .related-card{
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:var(--surface);
      box-shadow:var(--shadow-soft);
      transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
    }
    .related-card:hover{
      transform:translateY(-5px);
      border-color:rgba(201,151,99,.3);
      box-shadow:var(--shadow);
    }
    .related-card__image{aspect-ratio:16/9;overflow:hidden}
    .related-card__image img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
    .related-card:hover .related-card__image img{transform:scale(1.04)}
    .related-card__body{padding:20px}
    .related-card__body h3{margin:12px 0 9px;color:#fff0e8;font-size:18px;line-height:1.4}
    .related-card__body p{min-height:52px;margin:0 0 16px;color:var(--muted);font-size:13px;line-height:1.7}
    .card-link{display:inline-flex;align-items:center;gap:7px;color:var(--accent-2);font-size:13px;font-weight:700}
    .card-link::after{content:"→";transition:transform .2s var(--ease)}
    .card-link:hover::after{transform:translateX(4px)}

    .cta{
      margin-bottom:84px;
      padding:42px clamp(24px,5vw,70px);
      overflow:hidden;
      border:1px solid rgba(201,151,99,.22);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(110deg,rgba(157,56,86,.3),rgba(40,26,33,.85) 56%),
        url("/assets/images/backpic/back-3.jpg") center/cover;
    }
    .cta__inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{margin:0 0 9px;color:#fff6f0;font-size:28px}
    .cta p{margin:0;color:#d8c5bc;font-size:14px}

    .site-footer{
      padding:58px 0 24px;
      border-top:1px solid var(--line);
      background:#0d090c;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .8fr .9fr;
      gap:45px;
      padding-bottom:42px;
    }
    .footer-brand__name{color:#fff2ea;font-size:19px;font-weight:800}
    .footer-brand__desc{max-width:370px;margin:14px 0 0;color:var(--muted-2);font-size:13px;line-height:1.8}
    .footer-block h3{margin:0 0 14px;color:#fff0e8;font-size:14px}
    .footer-links{display:flex;flex-direction:column;gap:9px}
    .footer-links a{color:var(--muted-2);font-size:13px}
    .footer-links a:hover{color:var(--accent-2);padding-left:3px}
    .footer-note{
      display:flex;
      justify-content:space-between;
      gap:16px;
      padding-top:20px;
      border-top:1px solid var(--line);
      color:#806f69;
      font-size:12px;
    }

    @media (max-width:1024px){
      .article-layout{grid-template-columns:minmax(0,820px);gap:28px}
      .side-card{display:none}
      .related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
    }
    @media (max-width:768px){
      .site-header__inner{padding:12px 0}
      .nav{
        position:absolute;
        top:100%;
        left:16px;
        right:16px;
        display:none;
        padding:12px;
        border:1px solid var(--line);
        border-radius:var(--radius-md);
        background:#1a1116;
        box-shadow:var(--shadow);
      }
      .nav.is-open{display:block}
      .nav__list{display:flex;flex-direction:column;align-items:stretch}
      .nav__link{display:flex;border-radius:10px}
      .header-actions .btn{display:none}
      .menu-btn{display:flex}
      .article-banner{padding:58px 0 52px}
      .article-banner h1{font-size:clamp(31px,9vw,46px)}
      .article-intro{font-size:15px}
      .article-layout{padding:36px 0 56px}
      .article-main{padding:28px 20px;border-radius:var(--radius-lg)}
      .article-content{font-size:15px;line-height:1.88}
      .article-content h2{font-size:24px}
      .article-content h3{font-size:19px}
      .related{padding-bottom:58px}
      .related-grid{grid-template-columns:1fr}
      .related-card__body p{min-height:0}
      .cta{margin-bottom:58px;padding:30px 24px}
      .cta__inner{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand{grid-column:1/-1}
      .footer-note{flex-direction:column;gap:5px}
    }
    @media (max-width:520px){
      .container{width:min(var(--container),calc(100% - 24px))}
      .topbar__inner{justify-content:flex-start;font-size:12px}
      .topbar__inner>span:last-child{display:none}
      .brand__name{max-width:190px;font-size:16px}
      .brand__sub{max-width:190px;font-size:11px}
      .brand__mark{width:38px;height:38px;border-radius:12px}
      .article-banner{padding:45px 0 42px}
      .breadcrumb{font-size:12px}
      .article-meta{gap:7px}
      .meta-chip{font-size:11px}
      .article-end{align-items:stretch;flex-direction:column}
      .article-end .btn{width:100%}
      .section-heading{display:block}
      .section-heading h2{font-size:25px;margin-bottom:8px}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
    }

/* 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}