/* roulang page: index */
:root{
      --bg:#F7F1E8;
      --ink:#171411;
      --muted:#736B61;
      --line:#E8DED1;
      --accent:#D96C2C;
      --accent-dark:#B9541E;
      --accent-soft:#FFF1E4;
      --green-soft:#DDE7D5;
      --card:#FFFCF7;
      --coffee:#241B16;
      --shadow:0 20px 60px rgba(38,25,12,.08);
      --shadow-lift:0 26px 70px rgba(38,25,12,.13);
      --radius:28px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 10% 0%, rgba(217,108,44,.12), transparent 28rem),
        radial-gradient(circle at 90% 12%, rgba(221,231,213,.8), transparent 24rem),
        var(--bg);
      line-height:1.75;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    img{max-width:100%;display:block}
    ::selection{background:var(--accent);color:#fff}
    .site-wrap{overflow:hidden}
    .container-x{width:min(1180px, calc(100% - 40px));margin:0 auto}
    .top-strip{
      background:var(--coffee);
      color:#F8EFE3;
      font-size:13px;
      letter-spacing:.02em;
    }
    .main-nav{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(247,241,232,.92);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(232,222,209,.9);
    }
    .brand-mark{
      width:38px;height:38px;border-radius:14px;
      background:linear-gradient(135deg,var(--accent),#F5B36B);
      color:#fff;
      display:grid;place-items:center;
      font-weight:900;
      box-shadow:0 12px 30px rgba(217,108,44,.24);
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:0 14px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:all .22s ease;
    }
    .nav-link:hover,.nav-link.active{
      color:var(--ink);
      background:var(--accent-soft);
    }
    .nav-link.active:after{
      content:"";
      position:absolute;
      left:18px;right:18px;bottom:5px;height:2px;
      background:var(--accent);
      border-radius:999px;
    }
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
      border-radius:999px;
      padding:13px 20px;
      font-weight:800;
      line-height:1;
      transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease;
      border:1px solid transparent;
      cursor:pointer;
      white-space:nowrap;
    }
    .btn-primary{background:var(--accent);color:#fff;box-shadow:0 14px 34px rgba(217,108,44,.24)}
    .btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 18px 42px rgba(217,108,44,.30)}
    .btn-secondary{background:#fff9f0;color:var(--ink);border-color:var(--line)}
    .btn-secondary:hover{background:var(--accent-soft);border-color:#efc29e;transform:translateY(-1px)}
    .btn-dark{background:var(--ink);color:#fff}
    .btn-dark:hover{background:#2c241f;transform:translateY(-2px)}
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:.45rem;
      padding:8px 12px;border:1px solid var(--line);
      border-radius:999px;background:rgba(255,252,247,.78);
      color:var(--accent-dark);
      font-size:13px;font-weight:900;
    }
    .badge{
      display:inline-flex;align-items:center;gap:.35rem;
      border:1px solid var(--line);
      border-radius:999px;
      padding:7px 11px;
      background:#fffaf2;
      color:var(--muted);
      font-size:13px;
      font-weight:700;
    }
    .badge.orange{background:var(--accent-soft);color:var(--accent-dark);border-color:#F2C7A4}
    .badge.green{background:var(--green-soft);color:#526244;border-color:#CBD8C1}
    .card{
      background:rgba(255,252,247,.9);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
    }
    .card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:#E4C5A9}
    .hero-ribbon{
      border-bottom:1px solid var(--line);
      background:
        linear-gradient(90deg, rgba(255,241,228,.88), rgba(247,241,232,.76)),
        repeating-linear-gradient(90deg, rgba(23,20,17,.045) 0, rgba(23,20,17,.045) 1px, transparent 1px, transparent 72px);
    }
    .hero-title{letter-spacing:-.055em;line-height:1.05}
    .menu-board{
      background:linear-gradient(180deg,#2A211B,#171411);
      color:#F8EFE3;
      border-radius:32px;
      position:relative;
      overflow:hidden;
    }
    .menu-board:before{
      content:"";
      position:absolute;inset:auto -12% -30% auto;
      width:360px;height:360px;border-radius:999px;
      background:rgba(217,108,44,.22);
      filter:blur(2px);
    }
    .matrix-item{
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.055);
      border-radius:20px;
      padding:16px;
      transition:all .22s ease;
    }
    .matrix-item:hover{background:rgba(255,255,255,.10);transform:translateY(-2px)}
    .step-card{position:relative}
    .step-card:after{
      content:"";
      position:absolute;
      top:34px;left:calc(100% - 8px);
      width:56px;height:1px;
      background:linear-gradient(90deg,var(--accent),transparent);
    }
    .step-card:last-child:after{display:none}
    .compare-grid{display:grid;grid-template-columns:1.05fr 1.15fr 1fr;gap:18px;align-items:stretch}
    .compare-feature{
      display:flex;align-items:center;justify-content:space-between;
      border-top:1px solid var(--line);
      padding:13px 0;
      gap:12px;
      color:var(--muted);
      font-size:14px;
    }
    .ticker-dot{
      width:8px;height:8px;border-radius:999px;background:var(--accent);
      box-shadow:0 0 0 8px rgba(217,108,44,.12);
      animation:pulseSoft 2.2s infinite;
    }
    .news-link{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:14px;
      align-items:center;
      padding:18px 0;
      border-bottom:1px solid var(--line);
      transition:padding-left .22s ease, color .22s ease;
    }
    .news-link:hover{padding-left:6px;color:var(--accent-dark)}
    .shelf-card{
      border:1px solid var(--line);
      border-radius:24px;
      background:#fffaf3;
      padding:20px;
      transition:all .22s ease;
    }
    .shelf-card:hover{border-color:#E4B28E;background:#fff6ea;transform:translateY(-2px)}
    details{
      border:1px solid var(--line);
      background:rgba(255,252,247,.82);
      border-radius:22px;
      padding:0 20px;
      transition:background .22s ease,border-color .22s ease;
    }
    details[open]{background:#fff8ef;border-color:#EBC19D}
    summary{
      cursor:pointer;
      list-style:none;
      padding:18px 0;
      font-weight:900;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      width:28px;height:28px;border-radius:999px;
      display:grid;place-items:center;
      background:var(--accent-soft);
      color:var(--accent-dark);
      flex:0 0 auto;
      transition:transform .22s ease;
    }
    details[open] summary:after{content:"–";transform:rotate(180deg)}
    .form-field{
      width:100%;
      min-height:52px;
      border:1px solid var(--line);
      border-radius:18px;
      background:#fffdf8;
      padding:12px 15px;
      outline:none;
      transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .form-field:focus{
      border-color:var(--accent);
      box-shadow:0 0 0 4px rgba(217,108,44,.14);
      background:#fff;
    }
    .footer{
      background:var(--coffee);
      color:#F8EFE3;
    }
    .footer a{color:#D8C9B9;transition:color .2s ease}
    .footer a:hover{color:#F2A36B}
    @keyframes pulseSoft{
      0%,100%{transform:scale(1);opacity:1}
      50%{transform:scale(.82);opacity:.72}
    }
    @keyframes fadeUp{
      from{opacity:0;transform:translateY(18px)}
      to{opacity:1;transform:translateY(0)}
    }
    .fade-up{animation:fadeUp .7s ease both}
    @media (max-width:1024px){
      .section{padding:78px 0}
      .compare-grid{grid-template-columns:1fr}
      .step-card:after{display:none}
    }
    @media (max-width:768px){
      .container-x{width:min(100% - 28px,1180px)}
      .desktop-nav{display:none}
      .mobile-panel{display:none}
      .mobile-panel.open{display:block}
      .hero-title{letter-spacing:-.035em}
      .section{padding:64px 0}
      .section-tight{padding:54px 0}
      .btn{width:100%;padding:14px 18px}
      .top-strip{font-size:12px}
      .news-link{grid-template-columns:auto 1fr}
      .news-link span:last-child{grid-column:2}
    }
    @media (min-width:769px){
      .mobile-toggle,.mobile-panel{display:none!important}
    }
    @media (max-width:520px){
      .brand-long{max-width:190px}
      .hero-title{font-size:38px!important}
      .card,.menu-board{border-radius:24px}
      summary{font-size:15px}
    }

/* roulang page: category1 */
:root{
      --bg:#F7F1E8;
      --paper:#FFFCF7;
      --ink:#171411;
      --muted:#736B61;
      --line:#E8DED1;
      --accent:#D96C2C;
      --accent-dark:#B9511F;
      --accent-soft:#FFF1E4;
      --green-soft:#DDE7D5;
      --dark:#211A14;
      --radius-xl:30px;
      --radius-lg:24px;
      --radius-md:16px;
      --shadow:0 20px 60px rgba(38,25,12,.08);
      --shadow-hover:0 24px 70px rgba(38,25,12,.13);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 10% 5%, rgba(217,108,44,.13), transparent 30%),
        radial-gradient(circle at 92% 18%, rgba(221,231,213,.85), transparent 27%),
        var(--bg);
      line-height:1.75;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    img,svg{max-width:100%;display:block}
    ::selection{background:rgba(217,108,44,.22)}
    .container-x{
      width:min(1180px, calc(100% - 40px));
      margin-inline:auto;
    }
    .top-strip{
      background:var(--dark);
      color:#F7F1E8;
      font-size:13px;
      letter-spacing:.01em;
    }
    .main-nav{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(247,241,232,.88);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(18px);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      flex:0 0 auto;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg, var(--accent), #F2A36B);
      box-shadow:0 14px 32px rgba(217,108,44,.25);
      position:relative;
      overflow:hidden;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      inset:7px;
      border:1px solid rgba(255,255,255,.36);
      border-radius:11px;
    }
    .brand-long{color:var(--ink)}
    .desktop-nav{display:flex}
    .nav-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 16px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:800;
      border:1px solid transparent;
      transition:color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease;
    }
    .nav-link:hover{
      color:var(--ink);
      background:var(--accent-soft);
      border-color:#F4D4BC;
      transform:translateY(-1px);
    }
    .nav-link.active{
      color:var(--ink);
      background:#fff;
      border-color:var(--line);
      box-shadow:0 10px 24px rgba(38,25,12,.06);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.5rem;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:900;
      line-height:1;
      transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,.nav-link:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
      outline:3px solid rgba(217,108,44,.25);
      outline-offset:3px;
    }
    .btn-primary{
      background:var(--accent);
      color:#fff;
      box-shadow:0 14px 34px rgba(217,108,44,.22);
    }
    .btn-primary:hover{
      background:var(--accent-dark);
      box-shadow:0 18px 42px rgba(217,108,44,.3);
    }
    .btn-secondary{
      background:#FFFCF7;
      color:var(--ink);
      border-color:var(--line);
    }
    .btn-secondary:hover{
      background:var(--accent-soft);
      border-color:#F1C7A9;
    }
    .mobile-toggle{display:none}
    .mobile-panel{display:none}
    .mobile-panel.open{display:block;animation:fadeUp .22s ease both}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid #F1D2BC;
      background:rgba(255,241,228,.86);
      color:#8B461E;
      border-radius:999px;
      font-size:13px;
      font-weight:900;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      padding:7px 12px;
      border:1px solid var(--line);
      background:#FFFCF7;
      color:var(--muted);
      font-size:13px;
      font-weight:800;
      white-space:nowrap;
    }
    .badge.hot{
      background:var(--accent-soft);
      border-color:#F3CFB7;
      color:#8F421B;
    }
    .badge.green{
      background:var(--green-soft);
      border-color:#CBD9C2;
      color:#44533B;
    }
    .section{
      padding:92px 0;
      position:relative;
    }
    .section-tight{padding:70px 0}
    .section-title{
      font-size:clamp(30px,4vw,52px);
      line-height:1.08;
      letter-spacing:-.055em;
      font-weight:950;
    }
    .section-lead{
      color:var(--muted);
      font-size:16px;
      max-width:720px;
      line-height:1.9;
    }
    .hero{
      padding:74px 0 86px;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.02fr .98fr;
      gap:34px;
      align-items:stretch;
    }
    .hero h1{
      font-size:clamp(38px,6vw,70px);
      line-height:1.03;
      letter-spacing:-.07em;
      font-weight:950;
    }
    .hero-card,.soft-card{
      border:1px solid var(--line);
      background:rgba(255,252,247,.86);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow);
      transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
    }
    .soft-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:#E0C9B4;
    }
    .choice-card{
      border:1px solid var(--line);
      background:#FFFCF7;
      border-radius:24px;
      padding:18px;
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .choice-card.recommend{
      background:linear-gradient(180deg,#FFF1E4,#FFFCF7);
      border-color:#E8A072;
      box-shadow:0 20px 52px rgba(217,108,44,.13);
    }
    .choice-card:hover{
      transform:translateY(-3px);
      border-color:#D96C2C;
      box-shadow:0 18px 44px rgba(38,25,12,.09);
    }
    .divider-line{
      height:1px;
      background:linear-gradient(90deg,transparent,var(--line),transparent);
    }
    .filter-pill{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:10px 15px;
      border-radius:999px;
      border:1px solid var(--line);
      background:#FFFCF7;
      color:var(--muted);
      font-size:14px;
      font-weight:850;
      transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
    }
    .filter-pill:hover,.filter-pill.active{
      background:var(--accent-soft);
      border-color:#EAAF88;
      color:#8A421C;
      transform:translateY(-1px);
    }
    .shelf-row{
      display:grid;
      grid-template-columns:72px 1fr auto;
      gap:20px;
      align-items:center;
      padding:22px;
      border:1px solid var(--line);
      background:#FFFCF7;
      border-radius:24px;
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .shelf-row:hover{
      transform:translateY(-2px);
      border-color:#D9B08D;
      box-shadow:var(--shadow);
    }
    .num-tag{
      width:54px;
      height:54px;
      border-radius:18px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--dark);
      color:#F5E7D7;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .stat-tile{
      border:1px dashed #E2C8B2;
      background:rgba(255,241,228,.55);
      border-radius:22px;
      padding:18px;
    }
    .guide-step{
      position:relative;
      padding-left:54px;
    }
    .guide-step:before{
      content:attr(data-step);
      position:absolute;
      left:0;
      top:0;
      width:36px;
      height:36px;
      border-radius:14px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--accent);
      color:#fff;
      font-weight:950;
      box-shadow:0 12px 28px rgba(217,108,44,.24);
    }
    .guide-step:not(:last-child):after{
      content:"";
      position:absolute;
      left:17px;
      top:42px;
      bottom:-24px;
      width:1px;
      background:var(--line);
    }
    details{
      border:1px solid var(--line);
      background:#FFFCF7;
      border-radius:22px;
      overflow:hidden;
      transition:border-color .2s ease, background .2s ease, box-shadow .2s ease;
    }
    details:hover,details[open]{
      border-color:#E4B18D;
      background:#FFF9F1;
      box-shadow:0 14px 36px rgba(38,25,12,.06);
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:20px 22px;
      font-weight:950;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      width:28px;
      height:28px;
      border-radius:999px;
      background:var(--accent-soft);
      color:var(--accent-dark);
      display:flex;
      align-items:center;
      justify-content:center;
      flex:0 0 auto;
      font-weight:950;
      transition:transform .2s ease;
    }
    details[open] summary:after{content:"−";transform:rotate(180deg)}
    details p{padding:0 22px 22px;color:var(--muted);font-size:15px}
    .form-field{
      width:100%;
      min-height:52px;
      border:1px solid var(--line);
      border-radius:18px;
      background:#FFFCF7;
      padding:13px 15px;
      color:var(--ink);
      transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .form-field:focus{
      outline:none;
      border-color:var(--accent);
      box-shadow:0 0 0 4px rgba(217,108,44,.14);
      background:#fff;
    }
    textarea.form-field{min-height:128px;resize:vertical}
    .footer{
      background:var(--dark);
      color:#fff;
    }
    .footer a{
      color:#D8C9B9;
      transition:color .2s ease, transform .2s ease;
    }
    .footer a:hover{
      color:#F2A36B;
      transform:translateX(2px);
    }
    .dark-cta{
      background:
        radial-gradient(circle at 18% 10%, rgba(242,163,107,.18), transparent 28%),
        linear-gradient(135deg,#211A14,#171411);
      color:#fff;
      border-radius:32px;
      overflow:hidden;
      position:relative;
    }
    .dark-cta:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
      background-size:44px 44px;
      opacity:.25;
      pointer-events:none;
    }
    .animated-float{animation:softFloat 4.8s ease-in-out infinite}
    @keyframes softFloat{
      0%,100%{transform:translateY(0)}
      50%{transform:translateY(-8px)}
    }
    @keyframes fadeUp{
      from{opacity:0;transform:translateY(10px)}
      to{opacity:1;transform:translateY(0)}
    }
    .fade-up{animation:fadeUp .55s ease both}
    @media (max-width:1024px){
      .hero-grid{grid-template-columns:1fr;gap:24px}
      .section{padding:76px 0}
      .shelf-row{grid-template-columns:60px 1fr}
      .shelf-row .row-action{grid-column:1 / -1}
    }
    @media (max-width:768px){
      .container-x{width:min(100% - 28px,1180px)}
      .desktop-nav,.main-nav .hidden.md\:flex{display:none!important}
      .mobile-toggle{display:inline-flex}
      .hero{padding:54px 0 68px}
      .section{padding:62px 0}
      .section-tight{padding:52px 0}
      .hero h1{letter-spacing:-.055em}
      .shelf-row{grid-template-columns:1fr;gap:14px;padding:18px}
      .num-tag{width:50px;height:50px}
      .btn{width:100%}
      .top-strip{text-align:center}
      .brand-long{max-width:calc(100vw - 150px)}
    }
    @media (max-width:520px){
      .container-x{width:min(100% - 22px,1180px)}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .hero-card,.soft-card{border-radius:24px}
      summary{padding:18px}
      details p{padding:0 18px 18px}
      .filter-pill{width:100%}
    }