/* roulang page: index */
:root{
      --bg:#fbf7ef;
      --bg-soft:#fffaf1;
      --surface:#ffffff;
      --surface-2:#fff4df;
      --ink:#211b14;
      --muted:#726757;
      --weak:#9a8d7a;
      --line:#eadfcf;
      --brand:#b9822a;
      --brand-dark:#8d5f1a;
      --brand-soft:#f8e3bd;
      --deep:#17140f;
      --deep-2:#242017;
      --success:#43805e;
      --danger:#b35a48;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow-sm:0 10px 24px rgba(52,38,17,.08);
      --shadow:0 18px 45px rgba(52,38,17,.12);
      --shadow-hover:0 24px 55px rgba(52,38,17,.18);
      --container:1180px;
      --nav-h:76px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 4%, rgba(185,130,42,.16), transparent 28%),
        radial-gradient(circle at 90% 12%, rgba(67,128,94,.10), transparent 24%),
        linear-gradient(180deg, #fffaf1 0%, var(--bg) 48%, #fff 100%);
      line-height:1.7;
      padding-bottom:86px;
      text-rendering:optimizeLegibility;
    }

    a{
      color:inherit;
      text-decoration:none;
      transition:color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
    }
    a:hover{color:var(--brand-dark)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0}
    ::selection{background:var(--brand-soft);color:var(--deep)}

    .container-xl{max-width:var(--container)}
    .section{
      padding:82px 0;
      position:relative;
    }
    .section-tight{padding:58px 0}
    .section-head{
      display:flex;
      justify-content:space-between;
      gap:28px;
      align-items:flex-end;
      margin-bottom:30px;
    }
    .section-title{
      font-size:clamp(1.75rem,2.4vw,2.7rem);
      line-height:1.18;
      letter-spacing:-.04em;
      margin:0 0 12px;
      color:var(--ink);
      font-weight:850;
    }
    .section-desc{
      margin:0;
      color:var(--muted);
      max-width:720px;
      font-size:1.02rem;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(185,130,42,.24);
      background:rgba(255,250,241,.72);
      color:var(--brand-dark);
      border-radius:999px;
      font-size:.86rem;
      font-weight:750;
      margin-bottom:14px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--brand);
      box-shadow:0 0 0 5px rgba(185,130,42,.12);
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      background:rgba(23,20,15,.96);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(255,255,255,.08);
      box-shadow:0 12px 30px rgba(0,0,0,.16);
    }
    .navbar{
      min-height:var(--nav-h);
      padding:0;
    }
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff!important;
      font-weight:900;
      letter-spacing:-.04em;
      font-size:1.12rem;
      max-width:58vw;
      white-space:normal;
      line-height:1.2;
    }
    .brand-mark{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:14px;
      color:#24180a;
      background:linear-gradient(135deg,#f8dc9c,#b9822a);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.55), 0 10px 24px rgba(185,130,42,.28);
      font-weight:950;
      flex:0 0 auto;
    }
    .navbar-toggler{
      border:1px solid rgba(255,255,255,.16);
      border-radius:14px;
      padding:9px 11px;
      color:#fff;
      box-shadow:none!important;
    }
    .navbar-toggler:focus{outline:3px solid rgba(248,220,156,.24)}
    .navbar-toggler-icon{
      filter:invert(1) brightness(2);
      width:1.2em;
      height:1.2em;
    }
    .navbar-nav{
      align-items:center;
      gap:8px;
    }
    .nav-link{
      color:rgba(255,255,255,.72)!important;
      font-weight:700;
      padding:10px 14px!important;
      border-radius:999px;
      font-size:.96rem;
    }
    .nav-link:hover,.nav-link:focus{
      color:#fff!important;
      background:rgba(255,255,255,.08);
    }
    .nav-link.active{
      color:#fff!important;
      background:rgba(185,130,42,.24);
      border:1px solid rgba(248,220,156,.24);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:42px;
      padding:10px 18px;
      border-radius:999px;
      color:#20170b!important;
      background:linear-gradient(135deg,#f4d28d,#b9822a);
      font-weight:850;
      box-shadow:0 12px 28px rgba(185,130,42,.24);
    }
    .nav-cta:hover{
      transform:translateY(-1px);
      box-shadow:0 16px 34px rgba(185,130,42,.34);
    }

    .btn-brand,.btn-ghost,.btn-darkline{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      font-weight:850;
      letter-spacing:-.02em;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
    }
    .btn-brand{
      color:#20170b;
      background:linear-gradient(135deg,#f4d28d,#b9822a);
      box-shadow:0 16px 34px rgba(185,130,42,.25);
    }
    .btn-brand:hover{
      color:#20170b;
      transform:translateY(-2px);
      box-shadow:0 22px 45px rgba(185,130,42,.35);
    }
    .btn-ghost{
      color:var(--ink);
      background:rgba(255,255,255,.72);
      border:1px solid var(--line);
    }
    .btn-ghost:hover{
      background:#fff;
      border-color:rgba(185,130,42,.35);
      transform:translateY(-2px);
      box-shadow:var(--shadow-sm);
    }
    .btn-darkline{
      color:#fff;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
    }
    .btn-darkline:hover{
      color:#fff;
      background:rgba(255,255,255,.13);
      transform:translateY(-2px);
    }
    .btn-brand:focus,.btn-ghost:focus,.btn-darkline:focus,.form-control:focus,.form-select:focus{
      outline:3px solid rgba(185,130,42,.22);
      box-shadow:none;
    }

    .hero{
      padding:56px 0 38px;
      background:
        linear-gradient(180deg, rgba(255,250,241,.38), rgba(255,255,255,0)),
        radial-gradient(circle at 50% 0%, rgba(185,130,42,.14), transparent 45%);
      overflow:hidden;
    }
    .hero-panel{
      border:1px solid rgba(234,223,207,.9);
      background:rgba(255,255,255,.72);
      border-radius:36px;
      box-shadow:var(--shadow);
      padding:32px;
      position:relative;
      overflow:hidden;
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      inset:auto -90px -120px auto;
      width:310px;
      height:310px;
      border-radius:50%;
      background:rgba(185,130,42,.10);
      pointer-events:none;
    }
    .status-strip{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:24px;
      position:relative;
      z-index:1;
    }
    .status-item{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 12px;
      border-radius:999px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--muted);
      font-size:.92rem;
      font-weight:700;
    }
    .status-dot{
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--success);
      box-shadow:0 0 0 5px rgba(67,128,94,.12);
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 390px;
      gap:32px;
      align-items:center;
      position:relative;
      z-index:1;
    }
    h1{
      font-size:clamp(2.25rem,5vw,4.9rem);
      line-height:1.04;
      letter-spacing:-.075em;
      margin:0 0 20px;
      font-weight:950;
    }
    .hero-lead{
      margin:0 0 24px;
      max-width:800px;
      color:var(--muted);
      font-size:clamp(1.02rem,1.5vw,1.18rem);
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-bottom:24px;
    }
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
      max-width:720px;
    }
    .metric{
      padding:16px;
      border-radius:18px;
      background:linear-gradient(180deg,#fff,#fff7e8);
      border:1px solid var(--line);
    }
    .metric strong{
      display:block;
      font-size:1.45rem;
      line-height:1;
      color:var(--brand-dark);
      font-weight:950;
      margin-bottom:7px;
    }
    .metric span{
      color:var(--muted);
      font-size:.9rem;
      font-weight:650;
    }
    .icon-matrix{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
    }
    .matrix-card{
      min-height:104px;
      border-radius:22px;
      border:1px solid var(--line);
      background:linear-gradient(180deg,#fff,#fffaf2);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      padding:16px;
      box-shadow:var(--shadow-sm);
      position:relative;
      overflow:hidden;
    }
    .matrix-card:nth-child(2n){
      background:linear-gradient(180deg,#211d16,#2f281b);
      color:#fff;
      border-color:rgba(255,255,255,.10);
    }
    .matrix-icon{
      width:36px;
      height:36px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:var(--brand-soft);
      color:var(--brand-dark);
      font-weight:900;
    }
    .matrix-card:nth-child(2n) .matrix-icon{
      background:rgba(248,220,156,.16);
      color:#f4d28d;
    }
    .matrix-card b{
      font-size:.92rem;
      letter-spacing:-.02em;
    }

    .rail-wrap{
      background:#fff;
      border-top:1px solid var(--line);
      border-bottom:1px solid var(--line);
      padding:18px 0;
    }
    .series-rail{
      display:flex;
      gap:12px;
      overflow:auto;
      scrollbar-width:none;
      padding:2px 0;
    }
    .series-rail::-webkit-scrollbar{display:none}
    .series-pill{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:10px;
      padding:13px 16px;
      border-radius:999px;
      background:var(--bg-soft);
      border:1px solid var(--line);
      color:var(--ink);
      font-weight:800;
      white-space:nowrap;
    }
    .series-pill:hover{
      background:var(--brand-soft);
      border-color:rgba(185,130,42,.34);
      transform:translateY(-1px);
    }
    .series-num{
      width:24px;
      height:24px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:#fff;
      color:var(--brand-dark);
      font-size:.78rem;
      font-weight:950;
    }

    .showcase-layout{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:stretch;
    }
    .feature-card{
      border-radius:var(--radius-lg);
      background:linear-gradient(135deg,#241f17,#3a2e1d);
      color:#fff;
      padding:30px;
      min-height:420px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .feature-card::before{
      content:"";
      position:absolute;
      width:260px;
      height:260px;
      right:-90px;
      top:-90px;
      border-radius:50%;
      background:rgba(248,220,156,.16);
    }
    .feature-card h3{
      font-size:clamp(1.65rem,2.4vw,2.35rem);
      line-height:1.16;
      margin:0 0 12px;
      font-weight:900;
      letter-spacing:-.04em;
      position:relative;
    }
    .feature-card p{
      color:rgba(255,255,255,.74);
      margin:0;
      max-width:620px;
      position:relative;
    }
    .benefit-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:28px;
      position:relative;
    }
    .benefit-mini{
      padding:15px;
      border-radius:18px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
    }
    .benefit-mini b{display:block;margin-bottom:4px}
    .benefit-mini span{font-size:.86rem;color:rgba(255,255,255,.66)}
    .product-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .product-card,.plain-card,.topic-card,.proof-card{
      border:1px solid var(--line);
      background:rgba(255,255,255,.84);
      border-radius:var(--radius);
      padding:22px;
      box-shadow:var(--shadow-sm);
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .product-card:hover,.plain-card:hover,.topic-card:hover,.proof-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(185,130,42,.34);
    }
    .product-card{
      min-height:201px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .product-top{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:flex-start;
      margin-bottom:16px;
    }
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 10px;
      border-radius:999px;
      background:var(--brand-soft);
      color:var(--brand-dark);
      font-size:.78rem;
      font-weight:850;
    }
    .product-card h3,.plain-card h3,.topic-card h3{
      font-size:1.12rem;
      margin:0 0 8px;
      font-weight:900;
      letter-spacing:-.025em;
    }
    .product-card p,.plain-card p,.topic-card p,.proof-card p{
      color:var(--muted);
      margin:0;
      font-size:.96rem;
    }
    .card-index{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:#241f17;
      color:#f4d28d;
      font-weight:950;
      flex:0 0 auto;
    }

    .news-zone{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:24px;
      align-items:start;
    }
    .news-list{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .news-item{
      display:grid;
      grid-template-columns:92px minmax(0,1fr) auto;
      gap:16px;
      align-items:center;
      padding:20px 22px;
      border-bottom:1px solid var(--line);
    }
    .news-item:last-child{border-bottom:0}
    .news-date{
      color:var(--weak);
      font-weight:800;
      font-size:.88rem;
    }
    .news-title{
      font-weight:850;
      letter-spacing:-.02em;
      margin-bottom:4px;
    }
    .news-summary{
      color:var(--muted);
      font-size:.92rem;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .news-arrow{
      width:34px;
      height:34px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:var(--bg-soft);
      color:var(--brand-dark);
      font-weight:950;
    }
    .news-item:hover{
      background:#fffaf1;
    }
    .news-item:hover .news-arrow{
      background:var(--brand);
      color:#fff;
      transform:translateX(2px);
    }
    .recommend-box{
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,#fffaf1,#fff);
      border:1px solid var(--line);
      padding:24px;
      box-shadow:var(--shadow-sm);
      position:sticky;
      top:96px;
    }
    .recommend-box h3{
      font-weight:900;
      font-size:1.25rem;
      margin:0 0 12px;
      letter-spacing:-.03em;
    }
    .recommend-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:12px;
    }
    .recommend-list a{
      display:flex;
      justify-content:space-between;
      gap:14px;
      padding:13px 0;
      border-bottom:1px dashed var(--line);
      color:var(--ink);
      font-weight:750;
    }
    .recommend-list li:last-child a{border-bottom:0}
    .recommend-list a span{color:var(--brand-dark)}

    .compare-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
      align-items:stretch;
    }
    .plan-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:24px;
      box-shadow:var(--shadow-sm);
      position:relative;
      overflow:hidden;
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .plan-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(185,130,42,.34);
    }
    .plan-card.recommended{
      border:2px solid rgba(185,130,42,.58);
      background:linear-gradient(180deg,#fff8e8,#fff);
      transform:translateY(-8px);
    }
    .plan-card.recommended:hover{transform:translateY(-12px)}
    .plan-label{
      position:absolute;
      right:18px;
      top:18px;
      padding:6px 10px;
      border-radius:999px;
      background:#241f17;
      color:#f4d28d;
      font-size:.78rem;
      font-weight:850;
    }
    .plan-card h3{
      margin:0 0 8px;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .price{
      display:flex;
      align-items:flex-end;
      gap:6px;
      margin:18px 0;
      color:var(--brand-dark);
    }
    .price strong{
      font-size:2.3rem;
      line-height:1;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .price span{color:var(--muted);font-weight:700}
    .check-list{
      list-style:none;
      padding:0;
      margin:18px 0 22px;
      display:grid;
      gap:10px;
    }
    .check-list li{
      display:flex;
      gap:10px;
      color:var(--muted);
      font-size:.95rem;
    }
    .check-list li::before{
      content:"✓";
      width:22px;
      height:22px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(67,128,94,.12);
      color:var(--success);
      font-weight:950;
      flex:0 0 auto;
    }

    .topic-wrap{
      display:grid;
      grid-template-columns:340px minmax(0,1fr);
      gap:24px;
      align-items:start;
    }
    .topic-card.dark{
      background:linear-gradient(135deg,#1d1912,#322719);
      color:#fff;
      min-height:100%;
    }
    .topic-card.dark p{color:rgba(255,255,255,.72)}
    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
    }
    .topic-tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:12px 15px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--line);
      color:var(--ink);
      font-weight:800;
      box-shadow:0 8px 18px rgba(52,38,17,.05);
    }
    .topic-tag:hover{
      background:var(--brand-soft);
      border-color:rgba(185,130,42,.38);
      transform:translateY(-2px);
    }
    .topic-tag em{
      font-style:normal;
      color:var(--brand-dark);
      font-size:.88rem;
    }

    .proof-band{
      background:linear-gradient(135deg,#fff,#fff4df);
      border-top:1px solid var(--line);
      border-bottom:1px solid var(--line);
    }
    .proof-grid{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:18px;
    }
    .proof-card strong{
      display:block;
      font-size:2rem;
      line-height:1;
      color:var(--brand-dark);
      font-weight:950;
      margin-bottom:10px;
    }
    .quote{
      display:flex;
      gap:14px;
      align-items:flex-start;
      margin-top:16px;
      padding-top:16px;
      border-top:1px dashed var(--line);
      color:var(--muted);
      font-size:.94rem;
    }
    .avatar{
      width:38px;
      height:38px;
      border-radius:50%;
      background:linear-gradient(135deg,#f4d28d,#b9822a);
      color:#27190a;
      display:grid;
      place-items:center;
      font-weight:950;
      flex:0 0 auto;
    }

    .accordion{
      --bs-accordion-border-color:var(--line);
      --bs-accordion-border-radius:24px;
      --bs-accordion-inner-border-radius:22px;
      --bs-accordion-bg:#fff;
      --bs-accordion-btn-focus-box-shadow:none;
      display:grid;
      gap:12px;
    }
    .accordion-item{
      border:1px solid var(--line)!important;
      border-radius:22px!important;
      overflow:hidden;
      box-shadow:0 10px 22px rgba(52,38,17,.05);
    }
    .accordion-button{
      font-weight:900;
      color:var(--ink);
      background:#fff;
      padding:20px 22px;
      letter-spacing:-.02em;
    }
    .accordion-button:not(.collapsed){
      color:var(--brand-dark);
      background:#fff8e9;
      box-shadow:none;
    }
    .accordion-button::after{
      width:1.05rem;
      height:1.05rem;
      background-size:1.05rem;
      filter:sepia(1) saturate(1.4);
    }
    .accordion-body{
      color:var(--muted);
      padding:0 22px 22px;
    }

    .member-section{
      padding-bottom:110px;
    }
    .member-panel{
      display:grid;
      grid-template-columns:minmax(0,1fr) 430px;
      gap:26px;
      border-radius:36px;
      background:linear-gradient(135deg,#211d16,#3a2d1c);
      color:#fff;
      padding:30px;
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .member-panel::before{
      content:"";
      position:absolute;
      inset:-120px -80px auto auto;
      width:300px;
      height:300px;
      border-radius:50%;
      background:rgba(248,220,156,.14);
    }
    .member-content,.apply-card{position:relative;z-index:1}
    .member-content .section-title{color:#fff}
    .member-content .section-desc{color:rgba(255,255,255,.72)}
    .rights-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:14px;
      margin-top:26px;
    }
    .right-item{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
    }
    .right-item b{display:block;margin-bottom:5px}
    .right-item span{color:rgba(255,255,255,.66);font-size:.92rem}
    .apply-card{
      background:#fff;
      color:var(--ink);
      border-radius:28px;
      padding:24px;
      box-shadow:0 22px 50px rgba(0,0,0,.22);
    }
    .apply-card h3{
      margin:0 0 8px;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .apply-card p{
      color:var(--muted);
      margin:0 0 18px;
      font-size:.94rem;
    }
    .form-label{
      color:var(--ink);
      font-weight:800;
      font-size:.9rem;
      margin-bottom:7px;
    }
    .form-control,.form-select{
      border:1px solid var(--line);
      border-radius:14px;
      min-height:46px;
      background:#fffaf4;
      color:var(--ink);
    }
    .form-control::placeholder{color:#b0a28e}
    .form-text-note{
      color:var(--weak);
      font-size:.84rem;
      margin-top:10px;
    }
    .form-result{
      display:none;
      margin-top:12px;
      padding:10px 12px;
      border-radius:14px;
      background:rgba(67,128,94,.12);
      color:#2f6547;
      font-weight:800;
      font-size:.9rem;
    }

    .footer{
      background:var(--deep);
      color:rgba(255,255,255,.72);
      padding:48px 0 104px;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .7fr;
      gap:30px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:950;
      letter-spacing:-.04em;
      font-size:1.1rem;
      margin-bottom:14px;
    }
    .footer p{
      max-width:680px;
      margin:0;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:12px;
    }
    .footer-links a{
      padding:9px 13px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      color:rgba(255,255,255,.78);
      font-weight:750;
    }
    .footer-links a:hover{
      color:#fff;
      background:rgba(248,220,156,.16);
    }
    .copyright{
      margin-top:24px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.08);
      color:rgba(255,255,255,.52);
      font-size:.92rem;
    }

    .fixed-cta{
      position:fixed;
      left:0;
      right:0;
      bottom:0;
      z-index:1040;
      background:rgba(23,20,15,.94);
      backdrop-filter:blur(16px);
      border-top:1px solid rgba(255,255,255,.10);
      padding:12px 0;
      box-shadow:0 -16px 40px rgba(0,0,0,.18);
    }
    .fixed-cta-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    .fixed-copy{
      color:#fff;
      display:flex;
      flex-direction:column;
      line-height:1.35;
    }
    .fixed-copy b{font-weight:950}
    .fixed-copy span{
      color:rgba(255,255,255,.62);
      font-size:.9rem;
    }
    .fixed-actions{
      display:flex;
      gap:10px;
      flex:0 0 auto;
    }

    @media (max-width:1024px){
      .hero-grid,.showcase-layout,.news-zone,.topic-wrap,.member-panel{
        grid-template-columns:1fr;
      }
      .icon-matrix{
        grid-template-columns:repeat(6,1fr);
      }
      .matrix-card{min-height:96px}
      .recommend-box{position:relative;top:auto}
      .feature-card{min-height:auto}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }

    @media (max-width:768px){
      body{padding-bottom:118px}
      .section{padding:62px 0}
      .section-tight{padding:44px 0}
      .section-head{
        display:block;
        margin-bottom:24px;
      }
      .hero{padding:28px 0 22px}
      .hero-panel{
        padding:22px;
        border-radius:28px;
      }
      .hero-metrics,.benefit-row,.product-grid,.compare-grid,.proof-grid,.rights-grid{
        grid-template-columns:1fr;
      }
      .icon-matrix{
        grid-template-columns:repeat(3,1fr);
      }
      .news-item{
        grid-template-columns:1fr auto;
        gap:8px 12px;
      }
      .news-date{
        grid-column:1 / -1;
      }
      .plan-card.recommended{transform:none}
      .plan-card.recommended:hover{transform:translateY(-5px)}
      .member-panel{
        padding:22px;
        border-radius:28px;
      }
      .fixed-cta-inner{
        align-items:stretch;
        flex-direction:column;
        gap:10px;
      }
      .fixed-actions{
        width:100%;
      }
      .fixed-actions a{
        flex:1;
        min-height:44px;
        padding:10px 12px;
      }
      .navbar-collapse{
        padding:14px 0 18px;
      }
      .navbar-nav{
        align-items:stretch;
      }
      .nav-link,.nav-cta{
        justify-content:center;
      }
    }

    @media (max-width:520px){
      .container-xl{padding-left:18px;padding-right:18px}
      .navbar-brand{font-size:.98rem;max-width:72vw}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      h1{font-size:2.22rem}
      .hero-panel,.feature-card,.member-panel{border-radius:24px}
      .icon-matrix{grid-template-columns:repeat(2,1fr)}
      .status-item{width:100%;justify-content:center}
      .hero-actions a{width:100%}
      .topic-tag{width:100%;justify-content:space-between}
      .news-summary{white-space:normal}
      .footer{padding-bottom:126px}
    }

/* 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}