/* roulang page: index */
:root{
      --color-primary:#0F6B58;
      --color-primary-dark:#083D37;
      --color-accent:#C49A4A;
      --color-bg:#F8F5EE;
      --color-card:#FFFFFF;
      --color-ink:#17211E;
      --color-muted:#6C746F;
      --color-line:rgba(15,107,88,.14);
      --radius-xl:28px;
      --shadow-soft:0 20px 60px rgba(8,61,55,.10);
      --shadow-lift:0 26px 70px rgba(8,61,55,.16);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--color-ink);
      background:
        radial-gradient(circle at 12% 8%, rgba(15,107,88,.12), transparent 34%),
        radial-gradient(circle at 88% 18%, rgba(196,154,74,.18), transparent 30%),
        linear-gradient(180deg,#FAF7F0 0%,#F8F5EE 58%,#EEF6F1 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    ::selection{background:rgba(196,154,74,.28);color:#083D37}
    .site-shell{position:relative;isolation:isolate}
    .site-shell:before{
      content:"";
      position:absolute;
      inset:0;
      z-index:-1;
      background-image:
        linear-gradient(115deg,rgba(15,107,88,.07) 0 1px,transparent 1px 120px),
        radial-gradient(circle,rgba(196,154,74,.20) 1px,transparent 1.8px);
      background-size:120px 120px,34px 34px;
      opacity:.42;
      pointer-events:none;
    }
    .container-main{width:min(1180px,calc(100% - 40px));margin-inline:auto}
    .section{padding:92px 0}
    .section-tight{padding:70px 0}
    .nav-wrap{
      position:sticky;top:14px;z-index:50;
      width:min(1180px,calc(100% - 28px));
      margin:14px auto 0;
      border:1px solid rgba(15,107,88,.12);
      background:rgba(250,247,240,.94);
      border-radius:999px;
      box-shadow:0 14px 40px rgba(8,61,55,.09);
      backdrop-filter:blur(14px);
    }
    .nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 18px 0 20px}
    .brand-mark{display:flex;align-items:center;gap:10px;font-weight:800;color:#083D37;letter-spacing:-.02em;white-space:nowrap}
    .brand-icon{
      width:40px;height:40px;border-radius:15px;
      background:linear-gradient(135deg,#083D37,#0F6B58 62%,#C49A4A);
      display:grid;place-items:center;color:#fff;font-weight:900;
      box-shadow:0 10px 25px rgba(8,61,55,.22);
    }
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-link{
      position:relative;
      padding:10px 14px;
      border-radius:999px;
      color:#33413C;
      font-size:15px;
      font-weight:600;
      transition:.22s ease;
    }
    .nav-link:hover,.nav-link:focus{background:rgba(15,107,88,.08);color:#083D37;outline:none}
    .nav-link.active{color:#083D37;background:rgba(196,154,74,.14)}
    .nav-link.active:after{
      content:"";position:absolute;left:50%;bottom:5px;width:5px;height:5px;border-radius:999px;
      transform:translateX(-50%);background:#C49A4A;
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .search-pill{
      min-width:156px;height:42px;border-radius:999px;border:1px solid rgba(15,107,88,.14);
      background:#fff;color:#6C746F;display:flex;align-items:center;gap:8px;padding:0 14px;font-size:14px;
    }
    .mobile-toggle{display:none;width:44px;height:44px;border-radius:16px;border:1px solid rgba(15,107,88,.16);background:#fff;color:#083D37}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border-radius:999px;padding:14px 22px;font-weight:700;line-height:1;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease;
      cursor:pointer;border:0;
    }
    .btn-primary{background:linear-gradient(135deg,#0F6B58,#083D37);color:#fff;box-shadow:0 15px 34px rgba(8,61,55,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 44px rgba(8,61,55,.28)}
    .btn-secondary{background:#fff;color:#0D5F52;border:1px solid rgba(15,107,88,.18)}
    .btn-secondary:hover{background:#EEF6F1;transform:translateY(-2px);border-color:rgba(196,154,74,.45)}
    .btn:focus-visible,.field:focus{outline:none;box-shadow:var(--shadow-glow,0 0 0 4px rgba(196,154,74,.18))}
    .badge{
      display:inline-flex;align-items:center;gap:7px;border-radius:999px;
      padding:7px 12px;font-size:13px;font-weight:700;
      color:#0D5F52;background:rgba(15,107,88,.09);border:1px solid rgba(15,107,88,.12);
    }
    .gold-badge{background:rgba(196,154,74,.16);border-color:rgba(196,154,74,.28);color:#7A5A1D}
    .card{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(15,107,88,.11);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-soft);
      transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
    }
    .card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:rgba(196,154,74,.40)}
    .hero-visual{
      position:relative;overflow:hidden;border-radius:38px;min-height:560px;
      border:1px solid rgba(196,154,74,.22);box-shadow:var(--shadow-soft);
      background:#083D37;
    }
    .hero-visual:after{
      content:"";position:absolute;inset:0;
      background:linear-gradient(135deg,rgba(8,61,55,.78),rgba(15,107,88,.20) 48%,rgba(196,154,74,.22));
      pointer-events:none;
    }
    .floating-panel{position:absolute;z-index:2;background:rgba(255,255,255,.92);border:1px solid rgba(255,255,255,.7);border-radius:24px;box-shadow:0 18px 46px rgba(8,61,55,.22)}
    .metric-number{font-size:42px;line-height:1;font-weight:900;letter-spacing:-.04em;color:#0F6B58}
    .matrix-card{position:relative;overflow:hidden}
    .matrix-card:before{
      content:"";position:absolute;top:0;left:22px;right:22px;height:4px;border-radius:99px;
      background:linear-gradient(90deg,#0F6B58,#C49A4A);
      opacity:.72;
    }
    .arrow-link span{transition:transform .22s ease}
    .arrow-link:hover span{transform:translateX(4px)}
    .compare-item{display:flex;align-items:flex-start;gap:10px;padding:12px 0;border-bottom:1px solid rgba(15,107,88,.10)}
    .compare-item:last-child{border-bottom:0}
    .faq-answer{display:none}
    .faq-item.open{background:#F2F7F2;border-color:rgba(196,154,74,.36)}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-icon{transform:rotate(45deg);background:#C49A4A;color:#fff}
    .faq-item{transition:.22s ease}
    .faq-icon{transition:.22s ease}
    .field{
      width:100%;height:52px;border-radius:16px;border:1px solid rgba(15,107,88,.18);
      background:#fff;padding:0 15px;color:#17211E;transition:.18s ease;
    }
    textarea.field{height:112px;padding-top:13px;resize:vertical}
    .field:focus{border-color:#0F6B58}
    .footer-link{color:rgba(250,247,240,.76);transition:.2s ease}
    .footer-link:hover{color:#F6DDA8;transform:translateX(2px)}
    @media (max-width:1024px){
      .nav-links,.search-pill{display:none}
      .mobile-toggle{display:grid;place-items:center}
      .nav-wrap{border-radius:28px}
      .nav-inner{height:66px}
      .mobile-menu.show{display:grid}
      .hero-visual{min-height:430px}
      .section{padding:70px 0}
    }
    @media (max-width:640px){
      .container-main{width:min(100% - 28px,1180px)}
      .nav-actions .btn-primary{display:none}
      .brand-mark span:last-child{font-size:14px}
      .brand-icon{width:38px;height:38px}
      .section{padding:56px 0}
      .section-tight{padding:48px 0}
      .hero-visual{min-height:360px;border-radius:28px}
      .metric-number{font-size:34px}
      .btn{width:100%;padding:14px 18px}
    }

/* roulang page: category1 */
:root{
      --color-primary:#0F6B58;
      --color-primary-dark:#083D37;
      --color-accent:#C49A4A;
      --color-bg:#F8F5EE;
      --color-card:#FFFFFF;
      --color-ink:#17211E;
      --color-muted:#6C746F;
      --color-line:rgba(15,107,88,.14);
      --radius-card:28px;
      --shadow-card:0 18px 52px rgba(8,61,55,.09);
      --shadow-hover:0 26px 80px rgba(8,61,55,.15);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--color-ink);
      background:
        radial-gradient(circle at 12% 6%, rgba(15,107,88,.12), transparent 32%),
        radial-gradient(circle at 82% 14%, rgba(196,154,74,.15), transparent 30%),
        linear-gradient(180deg,#FAF7F0 0%,#F8F5EE 42%,#FFFFFF 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      background-image:
        linear-gradient(120deg, rgba(15,107,88,.05) 0 1px, transparent 1px 100%),
        radial-gradient(circle, rgba(196,154,74,.16) 1px, transparent 1.5px);
      background-size:42px 42px, 26px 26px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15));
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container-main{
      width:min(100% - 32px, 1240px);
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:60;
      padding:14px 0;
      background:rgba(248,245,238,.88);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(15,107,88,.10);
    }
    .nav-shell{
      min-height:68px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      border:1px solid rgba(15,107,88,.12);
      border-radius:24px;
      background:rgba(255,255,255,.82);
      box-shadow:0 14px 45px rgba(8,61,55,.08);
      padding:10px 12px 10px 18px;
    }
    .brand-mark{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:-.02em;
      color:var(--color-primary-dark);
      white-space:nowrap;
    }
    .brand-icon{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:16px;
      color:#fff;
      font-weight:900;
      background:
        linear-gradient(145deg,#0F6B58 0%,#083D37 64%,#C49A4A 100%);
      box-shadow:0 10px 24px rgba(8,61,55,.18);
    }
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      padding:4px;
      border-radius:18px;
      background:rgba(232,242,237,.68);
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:0 16px;
      border-radius:14px;
      color:#40504A;
      font-weight:700;
      transition:.22s ease;
    }
    .nav-link:hover{
      color:var(--color-primary-dark);
      background:rgba(255,255,255,.86);
      transform:translateY(-1px);
    }
    .nav-link.active{
      color:var(--color-primary-dark);
      background:#fff;
      box-shadow:0 8px 22px rgba(8,61,55,.08);
    }
    .nav-link.active::after{
      content:"";
      position:absolute;
      left:50%;
      bottom:6px;
      width:6px;
      height:6px;
      transform:translateX(-50%);
      border-radius:99px;
      background:var(--color-accent);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .search-pill{
      display:flex;
      align-items:center;
      gap:8px;
      min-height:42px;
      padding:0 14px;
      border:1px solid rgba(15,107,88,.13);
      border-radius:999px;
      background:#fff;
      color:var(--color-muted);
      font-weight:700;
      font-size:14px;
    }
    .mobile-toggle{
      display:none;
      width:46px;
      height:46px;
      align-items:center;
      justify-content:center;
      border:1px solid rgba(15,107,88,.16);
      border-radius:16px;
      background:#fff;
      color:var(--color-primary-dark);
    }
    .btn-primary,.btn-secondary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      padding:13px 22px;
      border-radius:999px;
      font-weight:800;
      transition:.22s ease;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,#0F6B58,#083D37 72%,#C49A4A);
      box-shadow:0 14px 32px rgba(15,107,88,.22);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 48px rgba(15,107,88,.28)}
    .btn-secondary{
      color:var(--color-primary-dark);
      background:#fff;
      border:1px solid rgba(15,107,88,.16);
    }
    .btn-secondary:hover{background:#E8F2ED;transform:translateY(-2px)}
    .btn-primary:focus,.btn-secondary:focus,.nav-link:focus,.footer-link:focus,input:focus,select:focus,textarea:focus,button:focus{
      outline:3px solid rgba(196,154,74,.28);
      outline-offset:3px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      width:max-content;
      border-radius:999px;
      padding:7px 12px;
      font-size:13px;
      font-weight:800;
      line-height:1;
    }
    .green-badge{color:var(--color-primary-dark);background:#E8F2ED;border:1px solid rgba(15,107,88,.12)}
    .gold-badge{color:#5A4215;background:rgba(246,221,168,.18);border:1px solid rgba(246,221,168,.28)}
    .section{
      padding:86px 0;
      position:relative;
    }
    .section-tight{padding:64px 0}
    .section-title{
      font-size:clamp(30px,4vw,44px);
      line-height:1.18;
      letter-spacing:-.04em;
      font-weight:900;
      color:var(--color-primary-dark);
    }
    .section-lead{
      margin-top:16px;
      max-width:760px;
      color:var(--color-muted);
      font-size:17px;
    }
    .hero-card,.content-card,.aside-card,.faq-card{
      border:1px solid var(--color-line);
      border-radius:var(--radius-card);
      background:rgba(255,255,255,.88);
      box-shadow:var(--shadow-card);
    }
    .content-card,.aside-card{
      transition:.24s ease;
    }
    .content-card:hover,.aside-card:hover{
      transform:translateY(-3px);
      border-color:rgba(196,154,74,.42);
      box-shadow:var(--shadow-hover);
    }
    .image-frame{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      border:1px solid rgba(15,107,88,.13);
      background:#E8F2ED;
    }
    .image-frame::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(135deg,rgba(8,61,55,.42),rgba(15,107,88,.10) 52%,rgba(196,154,74,.20));
      pointer-events:none;
    }
    .filter-pill{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 16px;
      border-radius:999px;
      border:1px solid rgba(15,107,88,.14);
      background:#fff;
      color:#41514B;
      font-weight:800;
      transition:.22s ease;
    }
    .filter-pill:hover{
      color:var(--color-primary-dark);
      background:#E8F2ED;
      transform:translateY(-1px);
    }
    .filter-pill.active{
      color:#fff;
      background:var(--color-primary);
      border-color:var(--color-primary);
      box-shadow:0 12px 26px rgba(15,107,88,.18);
    }
    .timeline-item{
      position:relative;
      padding-left:26px;
    }
    .timeline-item::before{
      content:"";
      position:absolute;
      left:6px;
      top:12px;
      width:9px;
      height:9px;
      border-radius:99px;
      background:var(--color-accent);
      box-shadow:0 0 0 6px rgba(196,154,74,.16);
    }
    .timeline-item::after{
      content:"";
      position:absolute;
      left:10px;
      top:31px;
      bottom:-22px;
      width:1px;
      background:rgba(15,107,88,.16);
    }
    .timeline-item:last-child::after{display:none}
    .notice-strip{
      border-radius:28px;
      border:1px solid rgba(196,154,74,.26);
      background:linear-gradient(135deg,rgba(246,221,168,.35),rgba(232,242,237,.72));
    }
    .faq-card{
      padding:0;
      overflow:hidden;
    }
    .faq-card summary{
      list-style:none;
      cursor:pointer;
      padding:20px 22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      font-weight:900;
      color:var(--color-primary-dark);
    }
    .faq-card summary::-webkit-details-marker{display:none}
    .faq-card summary span:last-child{
      width:30px;
      height:30px;
      display:grid;
      place-items:center;
      border-radius:999px;
      background:#E8F2ED;
      color:var(--color-primary);
      transition:.22s ease;
      flex:0 0 auto;
    }
    .faq-card[open]{background:#F2F7F2;border-color:rgba(196,154,74,.35)}
    .faq-card[open] summary{border-left:4px solid var(--color-accent)}
    .faq-card[open] summary span:last-child{transform:rotate(45deg);background:#fff}
    .faq-card .answer{
      padding:0 24px 22px 26px;
      color:var(--color-muted);
      font-size:15.5px;
    }
    .form-input{
      width:100%;
      height:52px;
      border-radius:16px;
      border:1px solid rgba(15,107,88,.18);
      background:#fff;
      padding:0 15px;
      color:var(--color-ink);
      transition:.2s ease;
    }
    textarea.form-input{
      height:118px;
      padding-top:13px;
      resize:vertical;
    }
    .form-input:focus{
      border-color:var(--color-primary);
      box-shadow:0 0 0 4px rgba(196,154,74,.16);
    }
    .footer-link{
      color:rgba(255,255,255,.72);
      transition:.2s ease;
      width:max-content;
    }
    .footer-link:hover{color:#F6DDA8;transform:translateX(3px)}
    .mini-arrow{
      display:inline-block;
      transition:.22s ease;
    }
    a:hover .mini-arrow{transform:translateX(4px)}
    @media (max-width:1024px){
      .nav-actions .search-pill{display:none}
      .section{padding:68px 0}
    }
    @media (max-width:768px){
      .nav-shell{border-radius:22px;align-items:flex-start;flex-wrap:wrap}
      .mobile-toggle{display:flex;margin-left:auto}
      .nav-actions{display:none}
      .nav-links{
        display:none;
        width:100%;
        flex-direction:column;
        align-items:stretch;
        background:#fff;
        border:1px solid rgba(15,107,88,.10);
        margin-top:10px;
      }
      .nav-links.open{display:flex}
      .nav-link{justify-content:center}
      .section{padding:58px 0}
      .section-tight{padding:48px 0}
      .brand-mark span:last-child{font-size:15px}
    }
    @media (max-width:520px){
      .container-main{width:min(100% - 24px,1240px)}
      .brand-icon{width:38px;height:38px;border-radius:14px}
      .btn-primary,.btn-secondary{width:100%;min-height:50px}
      .filter-pill{min-height:40px;padding:0 13px;font-size:14px}
      .hero-card,.content-card,.aside-card,.faq-card{border-radius:22px}
    }