/* roulang page: index */
:root{
    --brand:#0B6E4F;
    --brand-bright:#059669;
    --brand-dark:#0A5B44;
    --brand-deep:#042F24;
    --energy:#F2A530;
    --energy-dark:#D98E2E;
    --body:#26342E;
    --weak:#5C6F64;
    --mist:#F7FAF8;
    --card:#FFFFFF;
    --line:#E2EAE6;
    --shadow:0 1px 2px rgba(16,25,22,.04),0 8px 20px rgba(16,25,22,.06);
    --shadow-lg:0 12px 30px rgba(16,25,22,.12);
  }
  html{scroll-behavior:smooth}
  body{
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    background:var(--mist);
    color:var(--body);
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  .font-title{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif}
  .container-ui{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  img{max-width:100%;display:block}
  h1,h2,h3,h4{font-weight:800;line-height:1.3;letter-spacing:-0.01em}
  p{line-height:1.8}
  .skip-link{position:absolute;left:-999px;top:0;z-index:1000;background:var(--brand);color:#fff;padding:12px 18px}
  .skip-link:focus{left:0;color:#fff}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:8px;
    font-weight:700;font-size:15px;line-height:1;
    transition:all .2s ease;
    cursor:pointer;border:2px solid transparent;
  }
  .btn:focus-visible,.nav-link:focus-visible,.brand-logo:focus-visible,.footer-link:focus-visible{
    outline:3px solid rgba(242,165,48,.75);outline-offset:2px;
  }
  .btn-primary{
    background:var(--brand);color:#fff;box-shadow:0 4px 14px rgba(11,110,79,.25);
  }
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(11,110,79,.28)}
  .btn-primary:active{background:#083f32;transform:translateY(0);box-shadow:none}
  .btn-outline{
    border-color:var(--brand);color:var(--brand);background:transparent;
  }
  .btn-outline:hover{background:#E9F3EF;border-color:var(--brand-dark);color:var(--brand-dark)}
  .btn-outline:active{background:#d9ece4}
  .btn-ghost{
    min-height:44px;padding:0 6px;color:var(--brand);background:transparent;
  }
  .btn-ghost i{transition:transform .2s}
  .btn-ghost:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:4px}
  .btn-ghost:hover i{transform:translateX(4px)}
  .btn-light{border-color:#fff;color:#fff;background:rgba(255,255,255,.08);backdrop-filter:blur(6px)}
  .btn-light:hover{background:rgba(255,255,255,.18)}
  .badge{
    display:inline-flex;align-items:center;gap:5px;
    min-height:24px;padding:0 10px;border-radius:999px;
    background:#EDF5F2;color:var(--brand);
    font-size:12px;font-weight:700;line-height:1.2;white-space:nowrap;
  }
  .badge-amber{background:#FEF4E4;color:#B8771F}
  .content-card{
    background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);
    transition:transform .25s ease, box-shadow .25s ease;
  }
  .content-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
  .section{
    padding-top:72px;padding-bottom:72px;
  }
  .section-sm{padding-top:48px;padding-bottom:48px}
  .eyebrow-text{
    color:var(--brand);font-weight:800;letter-spacing:.08em;font-size:14px;
  }
  :where(details.faq-item){border-bottom:1px solid var(--line)}
  details.faq-item:first-child{border-top:1px solid var(--line)}
  details.faq-item summary{
    list-style:none;cursor:pointer;
    padding:22px 44px 22px 20px;
    position:relative;
    font-size:17px;font-weight:800;color:#1B2A24;
    display:flex;align-items:center;gap:12px;
    transition:color .2s;
  }
  details.faq-item summary::-webkit-details-marker{display:none}
  details.faq-item summary:hover{color:var(--brand)}
  .faq-dot{
    width:28px;height:28px;flex:0 0 28px;border-radius:8px;
    background:#EDF5F2;color:var(--brand);
    display:flex;align-items:center;justify-content:center;
    transition:background .25s,color .25s;
  }
  details.faq-item summary i.fa-chevron-down{
    position:absolute;right:14px;top:50%;
    transform:translateY(-50%);
    color:var(--weak);
    transition:transform .3s,color .3s;
    font-size:13px;
  }
  details.faq-item[open] summary i.fa-chevron-down{transform:translateY(-50%) rotate(180deg);color:var(--brand)}
  details.faq-item[open] .faq-dot{background:var(--brand);color:#fff}
  details.faq-item .faq-answer{
    padding:2px 20px 26px 60px;
    color:#42554C;font-size:16px;max-width:880px;
  }
  details.faq-item .faq-answer p{margin-bottom:.4rem}
  .news-row{
    display:grid;grid-template-columns:110px 1fr 34px;
    align-items:center;gap:16px;
    padding:18px 14px;
    border-radius:12px;
    transition:background .2s;
  }
  .news-row:hover{background:#F0F7F4}
  .news-row + .news-row{border-top:1px solid #EEF3EF}
  .news-date{
    color:var(--weak);font-size:14px;font-weight:500;
    display:flex;align-items:center;gap:8px;
    border-left:3px solid #B8D4C8;padding-left:10px;
  }
  .news-title-link{
    font-size:16px;font-weight:800;line-height:1.45;color:#182620;
    transition:color .2s;
  }
  .news-title-link:hover{color:var(--brand)}
  .news-excerpt{
    color:var(--weak);font-size:14px;line-height:1.7;
    margin-top:4px;overflow:hidden;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  }
  .news-row a.read-link{
    width:32px;height:32px;border-radius:8px;background:#EDF5F2;
    color:var(--brand);
    display:flex;align-items:center;justify-content:center;
    transition:background .2s,color .2s;
  }
  .news-row a.read-link:hover{background:var(--brand);color:#fff}
  .site-header{
    position:sticky;top:0;z-index:80;width:100%;
    background:#fff;
    border-bottom:1px solid var(--line);
  }
  .header-top{height:64px;background:#fff}
  .nav-bar{
    border-top:1px solid var(--line);
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(10px);
    box-shadow:0 2px 10px rgba(16,25,22,.03);
  }
  .nav-inner{display:flex;align-items:center;min-height:52px;gap:24px}
  .nav-list{
    display:flex;align-items:center;gap:4px;
    margin:0;padding:0;list-style:none;
  }
  .nav-list a{
    display:inline-flex;align-items:center;gap:6px;
    padding:0 12px;min-height:40px;border-radius:8px;
    font-size:15px;font-weight:700;color:#2C3E36;
    transition:background .2s,color .2s;
  }
  .nav-list a:hover{color:var(--brand);background:#EDF5F2}
  .nav-list a.active{
    color:var(--brand);
    box-shadow:inset 0 -3px 0 var(--brand);
    border-radius:0;
  }
  .brand-logo{
    display:inline-flex;align-items:center;gap:12px;
    padding:4px;
  }
  .brand-mark{
    width:40px;height:40px;border-radius:10px;
    background:var(--brand);
    display:flex;align-items:center;justify-content:center;
    color:#fff;
    position:relative;
    overflow:hidden;
    box-shadow:0 4px 12px rgba(11,110,79,.2);
  }
  .brand-mark svg{width:26px;height:26px}
  .brand-copy{display:flex;flex-direction:column;line-height:1.1}
  .brand-name{
    font-size:19px;font-weight:900;letter-spacing:.02em;color:var(--brand);
  }
  .brand-sub{
    font-size:12px;font-weight:700;color:var(--energy-dark);
    letter-spacing:.12em;margin-top:2px;line-height:1;
  }
  .header-top-inner{
    height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  }
  .hdr-mini{
    font-size:14px;color:var(--weak);
    display:flex;align-items:center;gap:8px;
    white-space:nowrap;
  }
  .hdr-mini .hot-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--energy)}
  .icon-btn{
    width:40px;height:40px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    color:#22352E;background:#F1F6F3;
    transition:background .2s,color .2s;
  }
  .icon-btn:hover{background:var(--brand);color:#fff}
  .search-wrap{
    background:var(--brand-deep);
    color:#fff;
    box-shadow:0 20px 40px rgba(4,47,36,.45);
  }
  .search-panel{
    display:none;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  .search-panel.open{display:block}
  .search-panel .input-main{
    background:transparent;border:none;
    color:#fff;width:100%;
    font-size:20px;padding:20px 0;line-height:1.4;
  }
  .search-panel .input-main::placeholder{color:rgba(255,255,255,.5)}
  .search-panel .input-main:focus{outline:none}
  .search-panel .tag-hot a{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 12px;border-radius:999px;
    background:rgba(255,255,255,.12);color:#fff;font-size:13px;margin-right:8px;
    transition:background .2s,color .2s;
  }
  .search-panel .tag-hot a:hover{background:var(--energy);color:var(--brand-deep)}
  .hero-block{
    position:relative;
    background-position:center;
    background-size:cover;
    background-repeat:no-repeat;
    min-height:560px;
  }
  .hero-layer{
    position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(4,47,36,.96) 0%,rgba(4,47,36,.86) 34%,rgba(11,110,79,.68) 62%,rgba(11,110,79,.32) 100%);
  }
  .hero-content{position:relative;color:#fff;padding-top:84px;padding-bottom:96px;max-width:790px}
  .hero-kicker{
    display:inline-flex;align-items:center;gap:8px;
    color:#E7F6F0;background:rgba(242,165,48,.15);
    border:1px solid rgba(242,165,48,.3);
    border-radius:999px;padding:6px 14px;
    font-size:13px;font-weight:700;margin-bottom:22px;
  }
  .hero-title{font-weight:900;line-height:1.22;letter-spacing:-.01em}
  .hero-title span{color:var(--energy)}
  .hero-lead{margin-top:20px;font-size:18px;color:rgba(255,255,255,.85);max-width:600px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:31px}
  .hero-stats{
    position:relative;display:grid;grid-template-columns:repeat(4,1fr);
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.14);
    border-radius:16px;
    padding:18px 22px;gap:12px;
    backdrop-filter:blur(8px);
    margin-top:-10px;margin-bottom:44px;
  }
  .stat-key{color:rgba(255,255,255,.65);font-size:12px}
  .stat-value{color:#fff;font-size:18px;font-weight:900;font-family:"Inter","Roboto",sans-serif}
  .table-plan{
    border-bottom:1px solid var(--line);padding:14px 16px;
    font-size:15px;color:#42554C;
  }
  .plan-highlight{
    background:#EDF5F2;
    border-left:3px solid var(--brand) !important;
  }
  .footer-dist{
    background:var(--brand-deep);color:#cfe3d8;
  }
  .footer-link{color:#cfe3d8;transition:color .2s,padding-left .2s}
  .footer-link:hover{color:#fff;padding-left:3px}
  .level-orbit{position:relative}
  .level-orbit:before{
    content:"";position:absolute;top:0;bottom:0;left:50%;
    width:2px;background:#A6C9B9;transform:translateX(-50%);
  }
  .level-item{position:relative;z-index:1;padding:4px 0 42px}
  .level-item:last-child{padding-bottom:0}
  .level-item .level-circle{
    width:48px;height:48px;border-radius:50%;
    background:var(--brand-bright);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-weight:900;
    border:6px solid #fff;box-shadow:0 0 0 1px #CAE2D8;
  }
  .level-item:nth-child(2) .level-circle{background:#0F8F6A}
  .level-item:nth-child(3) .level-circle{background:var(--energy);color:#5A3A04}
  .level-desc{max-width:420px}
  .lock-card{
    background:#00382A;
    border:1px solid rgba(255,255,255,.12);border-radius:18px;overflow:hidden;
    transition:transform .25s ease,border-color .25s ease;
    height:100%;
  }
  .lock-card:hover{transform:translateY(-4px);border-color:rgba(242,165,48,.5)}
  .lock-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
  .lock-thumb img{width:100%;height:100%;object-fit:cover}
  .lock-thumb:after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(4,47,36,.1),rgba(4,47,36,.68));
  }
  .lock-chip{
    position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
    z-index:2;
    width:62px;height:62px;border-radius:50%;
    background:rgba(4,47,36,.72);
    border:1px solid rgba(242,165,48,.5);
    color:var(--energy);
    display:flex;align-items:center;justify-content:center;
    box-shadow:0 8px 20px rgba(0,0,0,.35);
  }
  .mobile-nav-toggle{display:none}
  @media (max-width:1024px){
    .hero-content{padding-top:72px;padding-bottom:94px}
    .hdr-mini{display:none}
  }
  @media (max-width:900px){
    .nav-inner{flex-wrap:wrap;align-items:stretch}
    .nav-list{flex-direction:column;width:100%;padding:4px 0 14px}
    .nav-list a{display:flex;width:100%;min-height:44px;justify-content:flex-start}
    .nav-list a.active{background:#EDF5F2;border-radius:8px;color:var(--brand)}
    .nav-list{display:none}
    .nav-list.open{display:flex}
    .mobile-nav-toggle{display:inline-flex}
    .desktop-actions{display:none}
    .hero-stats{grid-template-columns:repeat(2,1fr)}
    .section{padding-top:56px;padding-bottom:56px}
  }
  @media (max-width:768px){
    .container-ui{padding-left:20px;padding-right:20px}
    .hero-title{font-size:32px!important}
    .hero-lead{font-size:16px!important}
    .news-row{grid-template-columns:1fr 34px}
    .news-date{border-left:none;padding-left:0;font-size:13px}
  }
  @media (max-width:500px){
    .brand-name{font-size:18px}
    .brand-sub{font-size:11px}
    .hero-stats{grid-template-columns:1fr 1fr;gap:14px;padding:18px}
    details.faq-item .faq-answer{padding:2px 14px 22px 48px}
  }
  .fade-up{}
  .cover-fallback{
    background:linear-gradient(135deg,#dceee6,#E9F3EF);
    display:flex;align-items:center;justify-content:center;
    min-height:110px;border-radius:8px;
    color:rgba(11,110,79,.45);font-weight:900;font-size:32px;letter-spacing:.1em;
  }
  .plan-ok{color:var(--brand-bright);font-size:15px;line-height:1.6}
  .plan-minus{color:#A6B8AE;font-size:15px}
  .cta-card{
    background:#fff;border-radius:24px;
    box-shadow:0 20px 55px rgba(4,47,36,.14);
  }
  .stamp-yellow{background:var(--energy);color:#042F24;border-radius:8px;padding:2px 8px;font-size:12px;font-weight:900;line-height:1.6}
  @media print{
    .site-header{position:static}
  }

/* roulang page: article */
:root {
        --primary: #0B6E4F;
        --primary-brand: #059669;
        --primary-deep: #042F24;
        --primary-dark: #0A5B44;
        --primary-soft: #E9F3EF;
        --energy: #F2A530;
        --energy-deep: #D98E2E;
        --energy-light: #FEF4E4;
        --ink: #101916;
        --body: #26342E;
        --muted: #5C6F64;
        --page: #F7FAF8;
        --line: #E2EAE6;
        --white: #FFFFFF;
        --shadow: 0 1px 2px rgba(16,25,22,.04), 0 8px 20px rgba(16,25,22,.06);
        --shadow-md: 0 12px 32px rgba(4,47,36,.10), 0 2px 8px rgba(16,25,22,.06);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
        font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
        background: var(--page);
        color: var(--body);
        font-size: 16px;
        line-height: 1.75;
        margin: 0;
        -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; }
    ul, ol { margin: 0; padding: 0; list-style: none; }
    h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.3; color: var(--ink); margin: 0; }
    p { margin: 0; }
    button, input { font-family: inherit; }
    input:focus { outline: none; }

    .container-ui {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }

    /* ===== Header ===== */
    .site-header {
        background: var(--white);
        border-bottom: 1px solid rgba(226, 234, 230, .8);
        box-shadow: 0 1px 0 rgba(16, 25, 22, .02);
        position: relative;
        z-index: 50;
    }
    .header-top {
        background: var(--white);
        height: 64px;
        display: flex;
        align-items: center;
    }
    .header-top-inner {
        display: flex;
        align-items: center;
        gap: 18px;
        width: 100%;
        justify-content: space-between;
    }
    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        min-width: max-content;
    }
    .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 11px;
        background: linear-gradient(145deg, var(--primary), var(--primary-dark));
        color: #fff;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 6px 14px rgba(11, 110, 79, .25);
        flex: 0 0 auto;
        transition: transform .2s ease;
    }
    .brand-mark svg {
        width: 23px;
        height: 23px;
    }
    .brand-logo:hover .brand-mark { transform: translateY(-2px); }
    .brand-copy {
        display: flex;
        flex-direction: column;
        line-height: 1;
    }
    .brand-name {
        font-size: 22px;
        font-weight: 800;
        color: var(--primary);
        letter-spacing: .4px;
        font-family: "Montserrat", "Inter", sans-serif;
    }
    .brand-sub {
        font-size: 12px;
        color: var(--energy-deep);
        font-weight: 600;
        letter-spacing: 3px;
        margin-top: 5px;
        text-transform: uppercase;
    }
    .hdr-mini {
        color: var(--muted);
        font-size: 13px;
        line-height: 1;
    }
    .hot-dot {
        width: 8px;
        height: 8px;
        display: inline-block;
        margin-right: 6px;
        border-radius: 50%;
        background: var(--energy);
        box-shadow: 0 0 0 4px rgba(242,165,48,.18);
    }
    .icon-btn {
        width: 42px;
        height: 42px;
        border: none;
        border-radius: 10px;
        background: transparent;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 17px;
        cursor: pointer;
        transition: background .2s ease, transform .2s ease;
    }
    .icon-btn:hover { background: var(--primary-soft); }
    .icon-btn:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
    }
    .mobile-nav-toggle { display: none; }

    .nav-bar {
        background: var(--white);
        border-top: 1px solid #EEF3F0;
        transition: all .25s ease;
        position: sticky;
        top: 0;
        z-index: 40;
    }
    .nav-inner {
        display: flex;
        align-items: center;
        gap: 24px;
        min-height: 52px;
        flex-wrap: nowrap;
    }
    .nav-list { display: flex; align-items: center; gap: 6px; flex-wrap: nowrap; }
    .nav-link {
        position: relative;
        display: inline-block;
        padding: 15px 10px 13px;
        font-size: 15px;
        font-weight: 500;
        color: #33463D;
        transition: color .2s ease, background .2s ease;
        white-space: nowrap;
    }
    .nav-link::after {
        content: "";
        position: absolute;
        left: 10px;
        right: 10px;
        bottom: -1px;
        height: 3px;
        border-radius: 3px 3px 0 0;
        background: var(--primary);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform .25s ease;
    }
    .nav-link:hover { color: var(--primary); }
    .nav-link:hover::after { transform: scaleX(.65); }
    .nav-link.active { color: var(--primary); font-weight: 700; }
    .nav-link.active::after { transform: scaleX(1); }
    .badge {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        padding: 4px 10px;
        border-radius: 999px;
        font-size: 12px;
        font-weight: 600;
        white-space: nowrap;
    }
    .badge-amber {
        background: var(--energy-light);
        color: #A86B12;
    }
    .search-panel {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--deepgreen);
        border-top: 1px solid rgba(255,255,255,.16);
        box-shadow: 0 18px 40px rgba(4,47,36,.18);
    }
    .search-panel.active { display: block; }
    .input-main {
        flex: 1;
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        color: #fff;
        font-size: 16px;
        padding: 10px 4px;
    }
    .input-main::placeholder { color: rgba(255,255,255,.65); }

    /* Buttons */
    .btn-primary,
    .btn-outline,
    .btn-text {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 9px;
        font-size: 16px;
        font-weight: 700;
        border-radius: 10px;
        min-height: 46px;
        padding: 0 23px;
        cursor: pointer;
        border: none;
        transition: all .2s ease;
    }
    .btn-primary {
        background: var(--primary);
        color: #fff;
        box-shadow: 0 6px 16px rgba(11, 110, 79, .2);
    }
    .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(11,110,79,.28); }
    .btn-primary:focus-visible { outline: 2px solid var(--primary-dark); outline-offset: 3px; }
    .btn-outline {
        border: 1.5px solid var(--primary);
        color: var(--primary);
        background: transparent;
    }
    .btn-outline:hover { background: var(--primary-soft); border-color: var(--primary-dark); }
    .btn-outline:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
    .btn-text {
        color: var(--primary);
        padding: 0 4px;
        background: none;
        min-height: 40px;
        border-radius: 0;
        font-weight: 600;
    }
    .btn-text:hover { color: var(--primary-dark); }
    .btn-text::after { content: "→"; margin-left: 2px; transition: transform .2s ease; display: inline-block; }
    .btn-text:hover::after { transform: translateX(4px); }

    /* post hero */
    .post-hero {
        background:
            linear-gradient(100deg, rgba(4,47,36,.98) 10%, rgba(4,47,36,.87) 42%, rgba(11,110,79,.68) 100%),
            url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
        color: #EEF5F1;
        padding: 66px 0 48px;
        position: relative;
        border-bottom: 1px solid rgba(255,255,255,.1);
    }
    .post-hero::after {
        content: "";
        position: absolute;
        right: -4%;
        top: -20px;
        width: 250px;
        height: 250px;
        background: radial-gradient(circle, rgba(242,165,48,.18), transparent 68%);
        pointer-events: none;
    }
    .breadcrumb-wrap {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        font-size: 14px;
        color: #A3C9B8;
        gap: 6px;
        margin-bottom: 24px;
    }
    .breadcrumb-wrap a { color: #C9E4D8; transition: color .2s; }
    .breadcrumb-wrap a:hover { color: #fff; }
    .post-eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 7px;
        font-size: 13px;
        font-weight: 600;
        color: var(--energy);
        letter-spacing: .4px;
        margin-top: 6px;
    }
    .post-hero-title {
        color: #fff;
        font-size: clamp(30px, 4vw, 42px);
        letter-spacing: .4px;
        max-width: 850px;
        line-height: 1.35;
        font-weight: 800;
        margin-top: 12px;
        text-shadow: 0 4px 16px rgba(0,0,0,.2);
    }
    .post-lead-desc {
        margin-top: 16px;
        color: #B9D6C9;
        font-size: 16px;
        max-width: 720px;
        line-height: 1.8;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .post-meta-hero {
        margin-top: 24px;
        display: flex;
        flex-wrap: wrap;
        gap: 10px 24px;
        align-items: center;
        color: #A3C9B8;
        font-size: 14px;
        position: relative;
        z-index: 2;
    }
    .post-meta-hero i { color: var(--energy); margin-right: 7px; opacity: .9; }

    /* Article content shell */
    .article-zone {
        padding-top: 44px;
        padding-bottom: 24px;
        position: relative;
    }
    .article-grid {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 310px;
        gap: 46px;
        align-items: start;
    }
    .article-card {
        background: #fff;
        min-height: 500px;
        transform: translateY(-34px);
        border-radius: 16px;
        box-shadow: var(--shadow);
        padding: 42px clamp(22px, 5vw, 64px) 30px;
        border: 1px solid rgba(226,234,230,.6);
    }
    .article-content {
        font-size: 18px;
        line-height: 1.95;
        color: var(--body);
        word-break: break-word;
    }
    .article-content p { margin-bottom: 1.5em; }
    .article-content h2,
    .article-content h3,
    .article-content h4 {
        margin: 1.8em 0 .6em;
        color: var(--ink);
        line-height: 1.45;
    }
    .article-content h2 {
        font-size: 26px;
        border-left: 4px solid var(--primary);
        padding-left: 15px;
        background: linear-gradient(90deg, var(--primary-soft), #fff 85%);
        border-radius: 0 8px 8px 0;
        padding-top: 7px;
        padding-bottom: 7px;
    }
    .article-content h3 { font-size: 22px; color: var(--primary-dark); }
    .article-content img { border-radius: 14px; margin: 26px 0; box-shadow: var(--shadow); }
    .article-content blockquote {
        margin: 30px 0;
        background: var(--primary-soft);
        border-left: 4px solid var(--primary);
        padding: 16px 22px;
        border-radius: 0 14px 14px 0;
        color: #315143;
        font-size: 16px;
    }
    .article-content ul, .article-content ol { margin: 1.2em 0 1.6em; padding-left: 22px; }
    .article-content ul { list-style: disc; }
    .article-content ol { list-style: decimal; }
    .article-content li { margin-bottom: 8px; }
    .article-content a { color: var(--primary); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
    .article-content a:hover { color: var(--primary-dark); }
    .article-content table { width: 100%; border-collapse: collapse; margin: 28px 0; font-size: 15px; border-radius: 10px; overflow: hidden; }
    .article-content th, .article-content td { border: 1px solid var(--line); padding: 12px 14px; text-align: left; }
    .article-content th { background: var(--primary-soft); color: var(--primary-dark); font-weight: 700; }
    .article-content code { background: #F1F5F3; padding: 2px 7px; border-radius: 5px; font-size: 14px; color: #B33A3A; }

    .post-tag-row {
        margin-top: 44px;
        display: flex;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
        border-top: 1px dashed var(--line);
        padding-top: 22px;
    }
    .tag-chip {
        display: inline-block;
        background: var(--primary-soft);
        color: var(--primary-dark);
        font-size: 13px;
        padding: 6px 13px;
        border-radius: 999px;
        font-weight: 500;
    }
    .tag-chip i { color: var(--primary); margin-right: 5px; }

    .post-nav-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 14px;
        margin-top: 28px;
    }
    .post-nav-item {
        display: flex;
        flex-direction: column;
        background: var(--page);
        padding: 16px 18px;
        border-radius: 12px;
        border: 1px solid var(--line);
        transition: all .2s ease;
    }
    .post-nav-item:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: #C5DAD2; }
    .post-nav-item span { font-size: 13px; color: var(--muted); }
    .post-nav-item strong { font-size: 15px; color: var(--ink); margin-top: 7px; font-weight: 600; }

    /* aside */
    .aside-sticky { position: sticky; top: 88px; display: flex; flex-direction: column; gap: 18px; transform: translateY(-22px); }
    .aside-card {
        background: #fff;
        border-radius: 16px;
        padding: 22px;
        box-shadow: var(--shadow);
        border: 1px solid rgba(226,234,230,.6);
    }
    .aside-title {
        font-size: 17px;
        font-weight: 700;
        color: var(--primary-dark);
        padding-bottom: 12px;
        border-bottom: 2px solid var(--primary-soft);
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 15px;
    }
    .aside-title i { color: var(--primary); }
    .aside-info-item { display: flex; gap: 10px; padding: 7px 0; font-size: 14px; color: #41564C; }
    .aside-info-item i { margin-top: 3px; color: var(--energy-deep); }
    .aside-cat-list li a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 10px 4px;
        font-size: 15px;
        color: var(--body);
        border-bottom: 1px solid #F0F4F2;
        transition: color .2s, padding .2s;
    }
    .aside-cat-list li a:hover { color: var(--primary); padding-left: 10px; }

    /* related + CTA + FAQ */
    .related-wrap { background: #EFF5F1; padding: 56px 0 70px; margin-top: 20px; }
    .section-title {
        font-size: clamp(24px, 3vw, 30px);
        margin-bottom: 28px;
        position: relative;
        padding-left: 17px;
    }
    .section-title::before {
        content: "";
        position: absolute;
        left: 0; top: 6px; bottom: 6px;
        width: 6px;
        border-radius: 6px;
        background: var(--primary);
    }
    .cover-card {
        background: #fff;
        border-radius: var(--radius);
        overflow: hidden;
        border: 1px solid rgba(226,234,230,.8);
        box-shadow: var(--shadow);
        transition: all .25s ease;
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    .cover-card .card-img {
        aspect-ratio: 16/10;
        width: 100%;
        object-fit: cover;
    }
    .card-badge-overlay {
        position: absolute;
        top: 12px;
        left: 12px;
        background: var(--energy);
        color: var(--ink);
        border-radius: 999px;
        font-size: 12px;
        padding: 3px 10px;
        font-weight: 700;
    }
    .cover-card .card-body { padding: 18px 19px 20px; display: flex; flex: 1; flex-direction: column; }
    .cover-card h3 { font-size: 17px; line-height: 1.5; }
    .cover-card h3 a { color: var(--body); transition: color .2s; }
    .cover-card h3 a:hover { color: var(--primary); }
    .cover-card p.desc { color: var(--muted); font-size: 14px; margin: 9px 0 19px; flex: 1; }
    .tiny-read { font-size: 14px; color: var(--primary); font-weight: 600; }
    .cover-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

    .faq-light { background: var(--page); padding: 62px 0; }
    .faq-list { max-width: 860px; margin: 0 auto; background: #fff; border-radius: 18px; box-shadow: var(--shadow); border: 1px solid var(--line); overflow: hidden; }
    .faq-item { border-bottom: 1px solid var(--line); padding: 0 25px; }
    .faq-item:last-child { border-bottom: none; }
    .faq-item summary {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 21px;
        cursor: pointer;
        list-style: none;
        padding: 21px 0;
        color: var(--ink);
        font-weight: 600;
        font-size: 16px;
        transition: color .2s;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary:hover { color: var(--primary); }
    .faq-item[open] summary { color: var(--primary-dark); border-bottom: 1px solid #EDF2EF; }
    .faq-item summary i { color: var(--energy-deep); font-size: 15px; flex: 0 0 auto; }
    .faq-item[open] summary i { transform: rotate(180deg); }
    .faq-item .faq-answer { padding: 4px 45px 22px 0; color: var(--muted); font-size: 15px; line-height: 1.85; }

    .cta-zone { padding: 28px 0 76px; }
    .cta-deck {
        background: linear-gradient(115deg, #042F24 0%, #0B6E4F 100%);
        border-radius: 22px;
        padding: 42px 36px 44px;
        position: relative;
        overflow: hidden;
        box-shadow: var(--shadow-md);
    }
    .cta-deck::after {
        content: "bsports";
        position: absolute;
        right: 30px;
        bottom: -24px;
        font-size: 86px;
        color: rgba(255,255,255,.05);
        font-weight: 800;
        letter-spacing: 3px;
        pointer-events: none;
        font-family: "Inter", sans-serif;
    }
    .cta-deck h2 { color: #fff; font-size: 28px; }
    .cta-deck p { color: rgba(255,255,255,.75); margin-top: 12px; }

    /* footer */
    .footer-dist { background: var(--primary-deep); }
    .footer-link { color: #C7DCD1; transition: color .2s ease, padding-left .2s ease; }
    .footer-link:hover { color: #fff; padding-left: 4px; }

    /* not found */
    .notfound-panel {
        max-width: 780px;
        margin: 74px auto 110px;
        padding: 60px 40px;
        background: #fff;
        border-radius: 18px;
        box-shadow: var(--shadow);
        text-align: center;
        border: 1px solid var(--line);
    }

    /* responsive */
    @media (max-width: 1024px) {
        .article-grid { grid-template-columns: minmax(0, 1fr) 270px; gap: 30px; }
    }
    @media (max-width: 900px) {
        .article-grid { grid-template-columns: 1fr; }
        .aside-sticky { position: relative; top: auto; transform: none; margin-top: -10px; }
        .post-nav-row { grid-template-columns: 1fr; }
    }
    @media (max-width: 767px) {
        .hdr-mini.desktop-actions { display: none; } 
        .desktop-actions { display: none; }
        .nav-bar { position: relative; }
        .nav-bar.open {
            border-bottom: 2px solid var(--primary-soft);
            box-shadow: 0 12px 24px rgba(4,47,36,.10);
        }
        .nav-inner { flex-direction: column; align-items: stretch; padding-top: 10px; padding-bottom: 20px; display: none; }
        .nav-bar.open .nav-inner { display: flex; }
        .nav-list { flex-direction: column; gap: 0; align-items: stretch; padding: 10px 0; border-top: 1px dashed var(--line); }
        .nav-link { display: block; padding: 13px 2px; border-bottom: 1px solid #F0F4F2; }
        .nav-link::after { display: none; }
        .nav-link.active { background: var(--primary-soft); padding-left: 12px; border-radius: 8px; }
        .nav-inner .flex.items-center { display: flex !important; flex-wrap: wrap; }
        .mobile-nav-toggle { display: inline-flex; }
        .post-hero { padding: 38px 0 30px; }
        .article-card { padding: 28px 20px 20px; transform: translateY(-12px); }
        .post-meta-hero { gap: 12px 16px; }
        .tag-chip { font-size: 12px; }
    }
    @media (max-width: 520px) {
        .container-ui { padding-left: 17px; padding-right: 17px; }
        .brand-mark { width: 34px; height: 34px; }
        .brand-name { font-size: 18px; }
        .brand-sub { font-size: 11px; letter-spacing: 2px; }
        .post-hero-title { font-size: 26px; }
        .article-card { border-radius: 12px; }
        .faq-list { padding: 0; }
        .faq-item { padding: 0 14px; }
        .cta-deck { padding: 28px 18px 32px; }
    }

/* roulang page: category1 */
:root {
    --primary: #0B6E4F;
    --primary-high: #059669;
    --primary-press: #0A5B44;
    --primary-deep: #042F24;
    --primary-tint: #E9F3EF;
    --energy: #F2A530;
    --energy-press: #D98E2E;
    --bg-body: #F7FAF8;
    --text-body: #26342E;
    --text-muted: #5C6F64;
    --card-bg: #fff;
    --line: #E2EAE6;
    --shadow-soft: 0 1px 2px rgba(16,25,22,.04), 0 8px 20px rgba(16,25,22,.06);
    --shadow-lift: 0 16px 36px rgba(16,25,22,.12);
    --radius-card: 14px;
    --radius-btn: 8px;
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background: var(--bg-body);
    color: var(--text-body);
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

  img {
    max-width: 100%;
    display: block;
  }

  a {
    color: inherit;
    text-decoration: none;
    transition: color .2s ease;
  }

  button,
  input {
    font-family: inherit;
  }

  .container-ui {
    width: 100%;
    max-width: 1200px;
    margin-inline: auto;
    padding-inline: 24px;
  }

  .section {
    padding: 84px 0;
  }

  .section-tight {
    padding: 52px 0;
  }

  /* 站点头部 */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(226, 234, 230, .8);
  }

  .header-top {
    background: #fff;
  }

  .header-top-inner {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }

  .brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }

  .brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    color: #fff;
    background: linear-gradient(145deg, var(--primary-high), var(--primary));
    border-radius: 10px;
  }

  .brand-mark svg {
    width: 22px;
    height: 22px;
  }

  .brand-copy {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
  }

  .brand-name {
    font-weight: 800;
    font-size: 20px;
    letter-spacing: .01em;
    color: var(--primary-deep);
  }

  .brand-sub {
    font-size: 11px;
    letter-spacing: .2em;
    color: var(--energy);
    font-weight: 700;
  }

  .hdr-mini {
    color: var(--text-muted);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .hdr-mini:last-child {
    white-space: nowrap;
  }

  .hot-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--energy);
    box-shadow: 0 0 0 3px rgba(242, 165, 48, .2);
  }

  .icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--primary);
    font-size: 16px;
    cursor: pointer;
    transition: all .18s ease;
  }

  .icon-btn:hover {
    border-color: rgba(11, 110, 79, .35);
    background: var(--primary-tint);
  }

  .icon-btn:focus-visible {
    outline: 2px solid var(--energy);
    outline-offset: 2px;
  }

  .mobile-nav-toggle {
    display: none;
  }

  .nav-bar {
    border-top: 1px solid #f0f4f2;
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(8px);
  }

  .nav-inner {
    height: 52px;
    display: flex;
    align-items: center;
    gap: 24px;
    position: relative;
  }

  .nav-list {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 0;
  }

  .nav-link {
    display: block;
    padding: 14px 10px 12px;
    font-size: 15px;
    font-weight: 500;
    color: #31453d;
    line-height: 1;
    position: relative;
    border-radius: 5px;
  }

  .nav-link:hover {
    color: var(--primary);
  }

  .nav-link.active {
    color: var(--primary);
    font-weight: 700;
  }

  .nav-link.active::after {
    content: '';
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 6px;
    height: 3px;
    border-radius: 4px;
    background: var(--primary);
  }

  .nav-extra {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    color: var(--text-muted);
    font-size: 13px;
  }

  .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
  }

  .badge-amber {
    background: #FEF4E4;
    color: #A4680D;
  }

  .search-panel {
    display: none;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }

  .search-panel.open {
    display: block;
  }

  .search-panel .input-main {
    background: transparent;
    border: none;
    outline: none;
    font-size: 17px;
    padding: 14px 0;
    color: #fff;
    width: 100%;
  }

  .search-panel .input-main::placeholder {
    color: #A7C4B7;
  }

  .search-submit {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--energy);
    color: var(--primary-deep);
    font-weight: 700;
    border: 0;
    border-radius: 8px;
    padding: 8px 18px;
    cursor: pointer;
  }

  .search-submit:hover {
    background: #ffc057;
  }

  /* 通用按钮 */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    border-radius: 8px;
    padding: 10px 22px;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.2;
    cursor: pointer;
    border: 1.5px solid transparent;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  }

  .btn:focus-visible {
    outline: 3px solid rgba(242, 165, 48, .45);
    outline-offset: 2px;
  }

  .btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 16px rgba(11, 110, 79, .22);
  }

  .btn-primary:hover {
    background: var(--primary-press);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lift);
  }

  .btn-outline {
    border-color: rgba(11, 110, 79, .5);
    color: var(--primary);
    background: #fff;
  }

  .btn-outline:hover {
    background: var(--primary-tint);
    border-color: var(--primary);
    transform: translateY(-2px);
  }

  .btn-energy {
    background: var(--energy);
    color: var(--primary-deep);
    box-shadow: 0 8px 18px rgba(242, 165, 48, .22);
  }

  .btn-energy:hover {
    background: #ffbf50;
    transform: translateY(-2px);
  }

  /* 面包屑 */
  .breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    list-style: none;
    margin: 0;
    padding: 14px 0 0;
    font-size: 13px;
    color: var(--text-muted);
  }

  .breadcrumb li + li::before {
    content: '/';
    margin-right: 6px;
    color: #a2b6ac;
  }

  .breadcrumb a:hover {
    color: var(--primary);
  }

  .breadcrumb [aria-current="page"] {
    color: var(--primary);
    font-weight: 600;
  }

  /* 分类页头部 */
  .page-banner {
    position: relative;
    overflow: hidden;
    background-image: linear-gradient(115deg, rgba(247,250,248,.98) 15%, rgba(247,250,248,.86) 58%, rgba(233,243,239,.88) 100%), url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
  }

  .page-banner-inner {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    align-items: center;
    gap: 48px;
    padding: 72px 0 74px;
  }

  .mini-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 5px 13px;
    font-size: 12px;
    color: var(--primary);
    letter-spacing: .06em;
  }

  .hero-h1 {
    font-size: 38px;
    line-height: 1.24;
    color: var(--primary-deep);
    font-weight: 900;
    margin: 18px 0 16px;
    letter-spacing: -.01em;
  }

  .hero-lead {
    color: #465c52;
    font-size: 17px;
    max-width: 600px;
  }

  .banner-media {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 22px 46px rgba(4, 47, 36, .18);
  }

  .banner-media img {
    width: 100%;
    height: 340px;
    object-fit: cover;
  }

  .banner-media-caption {
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 16px;
    background: rgba(4, 47, 36, .72);
    backdrop-filter: blur(8px);
    color: #fff;
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
  }

  /* 卡片通用 */
  .soft-card {
    background: #fff;
    border: 1px solid rgba(226, 234, 230, .8);
    border-radius: 14px;
    box-shadow: var(--shadow-soft);
  }

  .soft-card-hover {
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  }

  .soft-card-hover:hover {
    transform: translateY(-4px);
    border-color: rgba(11, 110, 79, .2);
    box-shadow: 0 18px 38px rgba(16, 25, 22, .1);
  }

  .section-kicker {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    background: var(--primary-tint);
    color: var(--primary);
    font-weight: 700;
    font-size: 13px;
    border-radius: 999px;
    padding: 5px 14px;
  }

  .section-h2 {
    font-size: 30px;
    font-weight: 900;
    color: var(--primary-deep);
    line-height: 1.3;
    letter-spacing: -.01em;
    margin: 16px 0 10px;
  }

  .section-sub {
    font-size: 15px;
    color: var(--text-muted);
    max-width: 620px;
  }

  .paragraph-lg {
    max-width: 70ch;
  }

  .check-list {
    display: grid;
    gap: 10px 18px;
    padding: 0;
    margin: 0;
    list-style: none;
    font-size: 15px;
    color: #33483f;
  }

  .check-list li {
    display: flex;
    align-items: flex-start;
    gap: 9px;
  }

  .check-list li i {
    color: var(--primary);
    margin-top: 5px;
    font-size: 13px;
  }

  .channel-card {
    padding: 26px 24px;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .channel-card-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--primary-tint);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
    margin-bottom: 16px;
  }

  .channel-card h3 {
    font-size: 18px;
    font-weight: 800;
    color: var(--primary-deep);
    margin: 0 0 8px;
  }

  .channel-card p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    margin: 0 0 18px;
  }

  .card-read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 700;
    font-size: 14px;
    margin-top: auto;
  }

  .card-read-more:hover {
    color: var(--primary-press);
    text-decoration: underline;
    text-underline-offset: 4px;
  }

  .step-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: steps;
  }

  .step-item {
    position: relative;
    background: #fff;
    border: 1px solid rgba(226,234,230,.9);
    border-radius: 18px;
    padding: 26px 22px;
    box-shadow: var(--shadow-soft);
  }

  .step-item::before {
    counter-increment: steps;
    content: counter(steps, decimal-leading-zero);
    font-weight: 900;
    font-size: 34px;
    letter-spacing: -.03em;
    display: block;
    color: rgba(11,110,79,.2);
    line-height: 1;
    margin-bottom: 13px;
  }

  .step-item h3 {
    font-size: 17px;
    font-weight: 800;
    color: var(--primary-deep);
    margin: 0 0 7px;
  }

  .step-item p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
  }

  .tip-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
  }

  /* FAQ */
  .faq-list {
    max-width: 860px;
    margin: 0 auto;
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
  }

  .faq-item {
    border-bottom: 1px solid #e7efeb;
  }

  .faq-item:last-child {
    border-bottom: none;
  }

  .faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 20px 24px;
    font-weight: 700;
    color: #1e3229;
    font-size: 16px;
    transition: background .18s ease;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-item summary:hover {
    background: #f8fbf9;
  }

  .faq-item summary i {
    color: var(--primary);
    font-size: 14px;
    flex-shrink: 0;
    transition: transform .25s ease;
  }

  .faq-item[open] summary i {
    transform: rotate(180deg);
  }

  .faq-item .answer {
    padding: 0 24px 22px;
    color: #4f645a;
    font-size: 15px;
    line-height: 1.8;
  }

  /* CTA */
  .cta-box {
    position: relative;
    overflow: hidden;
    background: linear-gradient(130deg, #042F24, #0B3D2E);
    border-radius: 22px;
    padding: 46px 48px;
    color: #fff;
    box-shadow: 0 24px 60px rgba(4, 47, 36, .2);
  }

  .cta-box::after {
    content: '';
    position: absolute;
    right: -80px;
    top: -100px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(242, 165, 48, .11);
  }

  .cta-box h2 {
    font-size: 26px;
    line-height: 1.4;
    font-weight: 900;
    margin: 0 0 12px;
  }

  .cta-box p {
    color: #BFD9CD;
    font-size: 15px;
    max-width: 660px;
    margin-bottom: 24px;
  }

  .cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }

  /* footer */
  .footer-dist {
    background: #042F24;
    position: relative;
    margin-top: 100px;
  }

  .footer-link {
    color: #a0bfaf;
    transition: color .2s ease;
  }

  .footer-link:hover {
    color: #fff;
  }

  /* 移动端适配 */
  @media (max-width: 1023px) {
    .nav-extra {
      display: none;
    }

    .nav-inner {
      justify-content: flex-start;
    }

    .nav-list {
      gap: 4px;
    }
  }

  @media (max-width: 820px) {
    .container-ui {
      padding-inline: 20px;
    }

    .nav-bar {
      border-top: none;
    }

    .nav-inner {
      height: auto;
    }

    .nav-list {
      position: absolute;
      left: 0;
      right: 0;
      top: 52px;
      flex-direction: column;
      align-items: stretch;
      background: #fff;
      border-top: 1px solid #e7efeb;
      box-shadow: 0 10px 28px rgba(4,47,36,.08);
      padding: 12px 20px 18px;
      gap: 4px;
      pointer-events: none;
      opacity: 0;
      transform: translateY(-8px);
      transition: opacity .2s ease, transform .2s ease;
      z-index: 90;
    }

    .site-header.menu-open .nav-list {
      opacity: 1;
      transform: translateY(0);
      pointer-events: auto;
    }

    .nav-link {
      padding: 12px 14px;
      border-radius: 8px;
    }

    .nav-link.active {
      background: var(--primary-tint);
    }

    .nav-link.active::after {
      display: none;
    }

    .mobile-nav-toggle {
      display: inline-flex;
    }

    .hdr-mini {
      display: none;
    }

    .page-banner-inner {
      grid-template-columns: 1fr;
      padding: 48px 0 56px;
      gap: 28px;
    }

    .hero-h1 {
      font-size: 32px;
    }

    .banner-media {
      max-width: 560px;
    }

    .step-list {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 640px) {
    .section {
      padding: 60px 0;
    }

    .page-banner-inner {
      padding: 40px 0;
    }

    .hero-h1 {
      font-size: 27px;
    }

    .hero-lead {
      font-size: 15px;
    }

    .btn {
      width: 100%;
    }

    .cta-actions .btn {
      width: auto;
      flex: 1 1 100%;
    }

    .cta-box {
      padding: 34px 24px;
    }

    .step-list {
      grid-template-columns: 1fr;
    }

    .faq-item summary {
      padding: 17px 16px;
      font-size: 15px;
    }

    .faq-item .answer {
      padding-inline: 16px;
    }
  }

  @media (max-width: 480px) {
    .section-h2 {
      font-size: 25px;
    }

    .header-top-inner {
      height: 60px;
    }

    .nav-list {
      top: 48px;
    }
  }

/* roulang page: category2 */
:root {
    --primary: #0B6E4F;
    --primary-bright: #059669;
    --primary-dark: #0A5B44;
    --primary-ink: #042F24;
    --green-soft: #E9F3EF;
    --green-light: #EDF5F2;
    --amber: #F2A530;
    --amber-dark: #D98E2E;
    --amber-bg: #FEF4E4;
    --deep-bg: #101916;
    --body: #26342E;
    --muted: #5C6F64;
    --page-bg: #F7FAF8;
    --white: #FFFFFF;
    --line: #E2EAE6;
    --shadow: 0 1px 2px rgba(16,25,22,.04), 0 8px 20px rgba(16,25,22,.06);
    --shadow-hover: 0 10px 24px rgba(11,110,79,.12), 0 4px 12px rgba(16,25,22,.07);
    --radius: 14px;
    --radius-sm: 8px;
    --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
    --font-latin: "Inter", "Roboto", "Helvetica Neue", sans-serif;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    font-family: var(--font-sans);
    background-color: var(--page-bg);
    color: var(--body);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

  * {
    box-sizing: border-box;
  }

  img {
    max-width: 100%;
    display: block;
  }

  a {
    color: inherit;
    text-decoration: none;
    transition: color .2s ease;
  }

  button {
    font-family: inherit;
    cursor: pointer;
  }

  input {
    font-family: inherit;
  }

  ul,
  ol {
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .container-ui {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
    width: 100%;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 90;
    background: var(--white);
    box-shadow: 0 1px 0 rgba(16,25,22,.06);
  }

  .header-top {
    background: var(--white);
    border-bottom: 1px solid rgba(16,25,22,.06);
  }

  .header-top-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
    gap: 20px;
  }

  .brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
  }

  .brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    color: var(--white);
    background: linear-gradient(145deg, var(--primary-bright), var(--primary));
    border-radius: 10px;
    box-shadow: 0 6px 14px rgba(5,150,105,.25);
  }

  .brand-mark svg {
    width: 20px;
    height: 20px;
  }

  .brand-copy {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
  }

  .brand-name {
    font-size: 21px;
    font-weight: 900;
    color: var(--primary-ink);
    letter-spacing: -0.01em;
  }

  .brand-sub {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .16em;
    color: var(--amber-dark);
  }

  .hdr-mini {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .hot-dot {
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: var(--amber);
    box-shadow: 0 0 0 3px rgba(242,165,48,.16);
  }

  .icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    background: var(--white);
    border-radius: 10px;
    color: var(--primary-ink);
    transition: background .2s ease, border-color .2s ease, color .2s ease;
  }

  .icon-btn:hover {
    background: var(--green-soft);
    border-color: rgba(5,150,105,.3);
    color: var(--primary);
  }

  .icon-btn:focus-visible {
    outline: 2px solid var(--primary-bright);
    outline-offset: 2px;
  }

  .nav-bar {
    position: relative;
    background: var(--white);
    border-bottom: 1px solid var(--line);
  }

  .nav-inner {
    display: flex;
    align-items: center;
    gap: 24px;
    min-height: 52px;
  }

  .nav-list {
    display: flex;
    align-items: center;
    gap: 3px;
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    height: 52px;
    padding: 0 13px;
    font-size: 15px;
    font-weight: 600;
    color: var(--body);
    border-bottom: 3px solid transparent;
    border-top: 3px solid transparent;
    transition: color .2s ease, border-color .2s ease;
  }

  .nav-link:hover {
    color: var(--primary);
    border-bottom-color: rgba(11,110,79,.28);
  }

  .nav-link.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
  }

  .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 3px 11px;
    font-size: 12px;
    font-weight: 600;
  }

  .badge-amber {
    background: var(--amber-bg);
    color: #8A5A12;
  }

  .search-panel {
    display: none;
    background: var(--primary-ink);
  }

  .search-panel.open {
    display: block;
  }

  .input-main {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: 0;
    outline: none;
    color: #e6f2ed;
    font-size: 16px;
    padding: 12px 4px;
  }

  .input-main::placeholder {
    color: #9DBDB1;
  }

  .btn-search {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--amber);
    color: var(--primary-ink);
    font-weight: 700;
    border: 0;
    border-radius: 8px;
    padding: 10px 18px;
    font-size: 14px;
    transition: background .2s ease;
  }

  .btn-search:hover {
    background: #FFBE54;
  }

  .mobile-nav-toggle {
    display: none;
  }

  .footer-dist {
    background: var(--primary-ink);
  }

  .footer-link {
    color: #b6d5c8;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color .2s ease;
  }

  .footer-link:hover {
    color: var(--amber);
  }

  /* Category hero */
  .category-hero {
    position: relative;
    padding: 58px 0 50px;
    background: linear-gradient(180deg,#F2FAF6, #E4F0EB);
    color: var(--primary-ink);
    overflow: hidden;
  }

  .category-hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-3.webp');
    background-position: center 35%;
    background-size: cover;
    opacity: .18;
    pointer-events: none;
  }

  .category-hero .container-ui {
    position: relative;
    z-index: 1;
  }

  .crumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 9px;
    font-size: 13px;
    color: #6b8a7c;
    margin-bottom: 18px;
  }

  .crumb a {
    transition: color .2s ease;
  }

  .crumb a:hover {
    color: var(--primary);
  }

  .crumb i {
    font-size: 11px;
    color: #9bb1a8;
  }

  .hero-title {
    font-size: clamp(30px, 4vw, 42px);
    line-height: 1.2;
    font-weight: 900;
    margin: 0 0 12px;
    letter-spacing: -.02em;
  }

  .hero-title span {
    color: var(--primary);
  }

  .hero-lead {
    font-size: 17px;
    max-width: 760px;
    margin-bottom: 20px;
    color: #3e574c;
  }

  .tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }

  .chip {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(255,255,255,.8);
    border: 1px solid rgba(11,110,79,.12);
    color: var(--primary);
    border-radius: 999px;
    padding: 5px 13px;
    font-size: 13px;
    font-weight: 600;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 46px;
    padding: 0 22px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 15px;
    border: 1.5px solid transparent;
    transition: background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease;
  }

  .btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 8px 18px rgba(11,110,79,.22);
  }

  .btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 10px 22px rgba(11,110,79,.28);
    transform: translateY(-1px);
  }

  .btn-outline {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(255,255,255,.7);
  }

  .btn-outline:hover {
    background: var(--green-light);
  }

  .btn-ghost {
    background: transparent;
    color: var(--primary);
    border-color: transparent;
  }

  .btn-ghost:hover {
    background: rgba(11,110,79,.06);
  }

  .btn:focus-visible {
    outline: 2px solid var(--primary-bright);
    outline-offset: 3px;
  }

  /* Section basics */
  .page-section {
    padding: 72px 0;
  }

  .section-header {
    margin-bottom: 38px;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .08em;
    color: var(--amber-dark);
    text-transform: uppercase;
    margin-bottom: 8px;
  }

  .section-title {
    font-size: clamp(26px, 3vw, 34px);
    font-weight: 900;
    line-height: 1.3;
    color: var(--primary-ink);
    margin: 0;
    letter-spacing: -.02em;
  }

  .section-sub {
    font-size: 16px;
    color: var(--muted);
    max-width: 780px;
    margin-top: 12px;
  }

  .divider {
    width: 48px;
    height: 4px;
    border-radius: 999px;
    background: var(--amber);
    margin: 16px 0 18px;
  }

  /* Layout */
  .two-col {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 40px;
  }

  .main-col {
    min-width: 0;
  }

  .side-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  .panel-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
  }

  .panel-title {
    font-weight: 800;
    font-size: 17px;
    color: var(--primary-ink);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .panel-title i {
    color: var(--primary);
  }

  .side-nav {
    display: flex;
    flex-direction: column;
  }

  .side-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 4px;
    font-size: 14px;
    font-weight: 600;
    color: var(--body);
    border-bottom: 1px solid #EFF4F1;
    transition: color .2s ease, background .2s ease;
  }

  .side-nav a:last-child {
    border-bottom: 0;
  }

  .side-nav a:hover {
    color: var(--primary);
    background: #F6FBF8;
  }

  .side-nav a i {
    font-size: 12px;
    color: var(--amber-dark);
  }

  .mini-text {
    font-size: 13px;
    line-height: 1.8;
    color: var(--muted);
  }

  .link-group li {
    margin-bottom: 8px;
  }

  .link-group li a {
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
  }

  .link-group li a:hover {
    color: var(--amber-dark);
    text-decoration: underline;
  }

  /* Feature cards */
  .feature-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 20px;
    margin-top: 24px;
  }

  .feature-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px 22px;
    transition: transform .25s ease, box-shadow .25s ease;
  }

  .feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
  }

  .feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    background: var(--green-light);
    color: var(--primary);
    border-radius: 12px;
    font-size: 20px;
    margin-bottom: 18px;
  }

  .feature-card h3 {
    font-size: 18px;
    font-weight: 800;
    color: var(--primary-ink);
    margin-bottom: 8px;
    line-height: 1.4;
  }

  .feature-card p {
    font-size: 15px;
    line-height: 1.8;
    color: #4B6158;
    margin: 0;
  }

  /* inline-feature blocks */
  .inline-feature {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, .85fr);
    gap: 34px;
    align-items: center;
    margin-top: 32px;
    background: var(--white);
    box-shadow: var(--shadow);
    border-radius: 16px;
    overflow: hidden;
  }

  .inline-content {
    padding: 30px 24px 30px 30px;
  }

  .inline-content h3 {
    font-size: 22px;
    font-weight: 900;
    color: var(--primary-ink);
    margin-bottom: 8px;
  }

  .inline-content h4 {
    font-size: 17px;
    font-weight: 800;
    margin-top: 18px;
    margin-bottom: 5px;
    color: var(--primary-ink);
  }

  .inline-content p {
    font-size: 15px;
    line-height: 1.8;
    color: #455D53;
    margin-bottom: 8px;
  }

  .inline-media {
    min-height: 260px;
    background: var(--green-light);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
  }

  .inline-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    inset: 0;
  }

  /* Check list */
  .check-list {
    margin-top: 12px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 10px 14px;
  }

  .check-list li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 14px;
    color: #2c4138;
    line-height: 1.7;
  }

  .check-list i {
    color: var(--primary-bright);
    margin-top: 5px;
    font-size: 13px;
  }

  /* Workflow */
  .flow-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0,1fr));
    gap: 20px;
    margin-top: 34px;
  }

  .flow-item {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 26px 20px 22px;
    border-top: 4px solid var(--primary);
    position: relative;
  }

  .flow-step {
    font-size: 12px;
    font-weight: 800;
    color: var(--amber-dark);
    letter-spacing: .1em;
    margin-bottom: 10px;
  }

  .flow-item h3 {
    font-size: 17px;
    font-weight: 800;
    color: var(--primary-ink);
    margin-bottom: 8px;
  }

  .flow-item p {
    font-size: 14px;
    line-height: 1.75;
    color: #546a60;
    margin: 0;
  }

  .flow-num {
    position: absolute;
    right: 14px;
    top: 14px;
    font-family: var(--font-latin);
    font-size: 32px;
    font-weight: 800;
    color: #e1ebe6;
    letter-spacing: 0;
  }

  /* Scene cards */
  .scene-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 22px;
    margin-top: 32px;
  }

  .scene-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform .25s ease, box-shadow .25s ease;
  }

  .scene-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
  }

  .scene-thumb {
    height: 176px;
    background: var(--green-light);
    position: relative;
    overflow: hidden;
  }

  .scene-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .scene-body {
    padding: 20px;
  }

  .scene-body h3 {
    font-size: 17px;
    font-weight: 800;
    color: var(--primary-ink);
    margin-bottom: 8px;
  }

  .scene-body p {
    font-size: 14px;
    line-height: 1.8;
    color: #5a6f65;
    margin: 0;
  }

  /* Update list */
  .update-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 18px;
    margin-top: 30px;
  }

  .update-item {
    background: var(--white);
    border-radius: 14px;
    padding: 22px;
    border-left: 4px solid var(--primary);
    box-shadow: var(--shadow);
    transition: transform .25s ease, box-shadow .25s ease;
  }

  .update-item:hover {
    transform: translateX(3px);
    box-shadow: var(--shadow-hover);
  }

  .update-tag {
    display: inline-block;
    background: var(--green-light);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    border-radius: 999px;
    padding: 3px 10px;
    margin-bottom: 12px;
  }

  .update-item h3 {
    font-size: 17px;
    font-weight: 800;
    color: var(--primary-ink);
    margin-bottom: 7px;
  }

  .update-item p {
    font-size: 14px;
    color: #5e756b;
    line-height: 1.75;
    margin: 0;
  }

  /* FAQ */
  .faq-wrap {
    background: #EDF5F1;
    padding: 76px 0;
  }

  .faq-content {
    max-width: 900px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 14px 26px;
  }

  .faq-item {
    border-bottom: 1px solid #E3EBE7;
  }

  .faq-item:last-child {
    border-bottom: 0;
  }

  .faq-item summary {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 18px 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-ink);
    transition: color .2s ease;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-item summary:hover {
    color: var(--primary);
  }

  .faq-item summary i {
    color: var(--primary);
    transition: transform .25s ease;
    font-size: 15px;
  }

  .faq-item[open] summary i {
    transform: rotate(45deg);
    color: var(--amber-dark);
  }

  .faq-answer {
    padding: 0 22px 20px;
    font-size: 15px;
    line-height: 1.85;
    color: #567064;
    max-width: 820px;
  }

  .faq-answer a {
    color: var(--primary);
    font-weight: 600;
  }

  /* CTA */
  .cta-zone {
    padding: 66px 0 76px;
  }

  .cta-panel {
    background: var(--primary-ink);
    color: #d7e8df;
    border-radius: 20px;
    padding: 42px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 30px;
    align-items: center;
    box-shadow: 0 18px 36px rgba(4,47,36,.25);
    position: relative;
    overflow: hidden;
  }

  .cta-panel::after {
    content: "";
    position: absolute;
    width: 220px;
    height: 220px;
    border-radius: 999px;
    background: rgba(5,150,105,.12);
    top: -80px;
    right: -40px;
  }

  .cta-copy h2 {
    color: #fff;
    font-size: 26px;
    font-weight: 900;
    margin: 0 0 8px;
  }

  .cta-copy p {
    color: #B8D2C7;
    font-size: 15px;
    margin: 0 0 18px;
  }

  .cta-actions .btn {
    white-space: nowrap;
  }

  .cta-note {
    font-size: 13px;
    color: #85A99A;
    margin-top: 14px;
  }

  @media (max-width: 1024px) {
    .two-col {
      grid-template-columns: 1fr;
    }
    .nav-bar {
      border-bottom: 0;
    }
    .nav-inner {
      display: none;
      position: absolute;
      left: 0;
      right: 0;
      top: 100%;
      background: var(--white);
      flex-direction: column;
      align-items: stretch;
      gap: 0;
      padding: 8px 24px 18px;
      box-shadow: 0 18px 24px rgba(16,25,22,.12);
      border-bottom: 1px solid var(--line);
      min-height: auto;
    }
    .nav-inner.nav-open {
      display: block;
    }
    .nav-list {
      flex-direction: column;
      align-items: stretch;
      gap: 0;
    }
    .nav-link {
      height: 44px;
      border-bottom: 1px solid #ECF2EF;
      border-left: 3px solid transparent;
      border-top: 0;
    }
    .nav-link.active {
      border-left-color: var(--primary);
      border-bottom-color: #ECF2EF;
    }
    .nav-link:hover {
      border-bottom-color: #ECF2EF;
    }
    .mobile-nav-toggle {
      display: inline-flex;
    }
    .desktop-actions {
      display: none;
    }
    .hdr-mini {
      display: none;
    }
    .feature-grid {
      grid-template-columns: 1fr;
    }
    .flow-grid {
      grid-template-columns: repeat(2, minmax(0,1fr));
    }
    .scene-grid {
      grid-template-columns: repeat(2, minmax(0,1fr));
    }
    .update-list {
      grid-template-columns: 1fr;
    }
  }

  @media (max-width: 768px) {
    .container-ui {
      padding-left: 16px;
      padding-right: 16px;
    }
    .inline-feature {
      grid-template-columns: 1fr;
    }
    .inline-media {
      min-height: 200px;
    }
    .inline-content {
      padding: 24px 20px;
    }
    .flow-grid {
      grid-template-columns: 1fr;
      gap: 14px;
    }
    .hero-actions {
      flex-direction: column;
    }
    .hero-actions .btn {
      width: 100%;
    }
    .cta-panel {
      grid-template-columns: 1fr;
      padding: 28px 22px;
    }
    .cta-actions .btn {
      width: 100%;
    }
    .page-section {
      padding: 58px 0;
    }
    .faq-content {
      padding: 10px 18px;
    }
    .faq-answer {
      padding-left: 10px;
      padding-right: 10px;
    }
  }

  @media (max-width: 640px) {
    .feature-grid {
      grid-template-columns: 1fr;
    }
    .scene-grid {
      grid-template-columns: 1fr;
    }
    .check-list {
      grid-template-columns: 1fr;
    }
  }

/* roulang page: category3 */
:root {
            --primary: #0B6E4F;
            --primary-bright: #059669;
            --primary-dark: #0A5B44;
            --primary-deeper: #042F24;
            --primary-mist: #E9F3EF;
            --energy: #F2A530;
            --energy-dark: #D98E2E;
            --body-bg: #F7FAF8;
            --white: #FFFFFF;
            --text-body: #26342E;
            --muted: #5C6F64;
            --line: #E2EAE6;
            --light-yellow-bg: #FEF4E4;
            --radius-card: 14px;
            --shadow-card: 0 1px 2px rgba(16, 25, 22, .04), 0 8px 20px rgba(16, 25, 22, .06);
            --shadow-hover: 0 10px 24px rgba(16, 25, 22, .10), 0 2px 5px rgba(16, 25, 22, .06);
        }

        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background: var(--body-bg);
            color: var(--text-body);
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        h1,
        h2,
        h3,
        h4 {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--primary-deeper);
            margin: 0 0 10px;
            line-height: 1.4;
        }
        p {
            margin: 0 0 14px;
        }
        a {
            color: inherit;
            transition: color .2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select {
            font: inherit;
        }
        ul {
            margin: 0;
            padding: 0;
        }
        .container-ui {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container-ui {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: #fff;
            box-shadow: 0 1px 0 rgba(226, 234, 230, .9);
        }
        .header-top {
            background: #fff;
            border-bottom: 1px solid #EFF4F2;
            transition: all .25s ease;
        }
        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 64px;
            padding-block: 8px;
            transition: min-height .3s ease;
        }
        body.is-scrolled .header-top-inner {
            min-height: 44px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            border-radius: 10px;
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-bright));
            color: #fff;
            flex: 0 0 auto;
            box-shadow: 0 4px 10px rgba(11, 110, 79, .18);
        }
        .brand-mark svg {
            width: 22px;
            height: 22px;
        }
        .brand-copy {
            display: flex;
            flex-direction: column;
            line-height: 1.25;
        }
        .brand-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary-deeper);
            letter-spacing: .01em;
        }
        .brand-sub {
            font-size: 11px;
            color: var(--energy-dark);
            font-weight: 700;
            letter-spacing: 2px;
            margin-top: 2px;
        }
        .hdr-mini {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            color: var(--muted);
            background: #F5FAF8;
            border: 1px solid #EAF2EF;
            border-radius: 999px;
            padding: 4px 12px;
        }
        .hot-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--energy);
            box-shadow: 0 0 0 4px rgba(242, 165, 48, .14);
        }
        .icon-btn {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--line);
            background: #fff;
            color: var(--text-body);
            cursor: pointer;
            transition: all .2s ease;
        }
        .icon-btn:hover {
            color: var(--primary);
            border-color: var(--primary);
        }
        .icon-btn:focus-visible {
            outline: 3px solid rgba(11, 110, 79, .25);
            outline-offset: 2px;
        }
        .nav-bar {
            background: #fff;
            position: relative;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            min-height: 52px;
        }
        .nav-list {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 2px;
            margin: 0;
            padding: 0;
        }
        .nav-link {
            position: relative;
            display: block;
            padding: 15px 12px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 0;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 0;
            height: 3px;
            border-radius: 3px 3px 0 0;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .2s ease;
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after,
        .nav-link:hover::after {
            transform: scaleX(1);
        }
        .search-panel {
            display: none;
            background: var(--primary-deeper);
            color: #fff;
            box-shadow: 0 16px 30px rgba(4, 47, 36, .18);
        }
        .search-panel.open {
            display: block;
        }
        .input-main {
            flex: 1 1 auto;
            min-width: 0;
            background: transparent;
            border: 0;
            outline: 0;
            color: #fff;
            padding: 8px 2px;
            font-size: 15px;
        }
        .input-main::placeholder {
            color: #9FC7B7;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            background: #EDF5F2;
            color: var(--primary);
            line-height: 1.5;
            white-space: nowrap;
        }
        .badge-amber {
            background: rgba(242, 165, 48, .16);
            color: #9A6115;
        }
        .mobile-nav-toggle {
            display: none;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 46px;
            padding: 0 20px;
            border: 1px solid var(--primary);
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: all .2s ease;
            box-shadow: 0 6px 14px rgba(11, 110, 79, .14);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(11, 110, 79, .18);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(11, 110, 79, .32);
            outline-offset: 2px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 46px;
            padding: 0 20px;
            border: 1.5px solid var(--primary);
            border-radius: 8px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            cursor: pointer;
            transition: all .2s ease;
        }
        .btn-outline:hover {
            background: var(--primary-mist);
            transform: translateY(-2px);
        }
        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: .04em;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 800;
            color: var(--primary-deeper);
            margin-bottom: 10px;
        }
        .section-desc {
            color: var(--muted);
            font-size: 15px;
            max-width: 680px;
        }

        /* Category hero */
        .cat-hero {
            background: linear-gradient(135deg, #E9F3EF 0%, #F7FAF8 58%, #FEF4E4 100%);
            border-bottom: 1px solid var(--line);
        }
        .cat-hero-inner {
            display: grid;
            grid-template-columns: minmax(0, 1.08fr) minmax(280px, .92fr);
            align-items: center;
            gap: 44px;
            padding-top: 52px;
            padding-bottom: 58px;
        }
        .cat-hero-info h1 {
            font-size: clamp(32px, 4.4vw, 42px);
            font-weight: 900;
            letter-spacing: -.01em;
            margin: 6px 0 14px;
        }
        .cat-hero-info p {
            font-size: 17px;
            line-height: 1.8;
            color: #40594C;
            max-width: 620px;
        }
        .visual-frame {
            position: relative;
            border-radius: 22px;
            overflow: hidden;
            box-shadow: 0 20px 44px rgba(16, 25, 22, .14);
            border: 6px solid #fff;
            background: linear-gradient(135deg, #0B6E4F, #042F24);
        }
        .visual-frame img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }
        .visual-note {
            position: absolute;
            left: 16px;
            bottom: 16px;
            margin: 0;
            background: rgba(4, 47, 36, .78);
            color: #fff;
            border-radius: 10px;
            padding: 8px 14px;
            font-size: 13px;
            backdrop-filter: blur(6px);
        }
        @media (max-width: 900px) {
            .cat-hero-inner {
                grid-template-columns: 1fr;
                padding-top: 40px;
                padding-bottom: 48px;
            }
            .visual-frame img {
                height: 260px;
            }
        }

        /* Card style */
        .feature-card,
        .side-card,
        .flow-step,
        .preview-card {
            background: #fff;
            border: 1px solid #EDF2EF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }
        .feature-card {
            display: flex;
            overflow: hidden;
        }
        .feature-card .media {
            width: 44%;
            min-height: 220px;
            overflow: hidden;
        }
        .feature-card .media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }
        .feature-card:hover .media img {
            transform: scale(1.03);
        }
        .feature-body {
            flex: 1;
            padding: 24px 22px;
        }
        .feature-body h3 {
            font-size: 20px;
            margin: 8px 0 8px;
        }
        .feature-body p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
        }
        .min-feature {
            background: #F8FBF9;
            border: 1px solid #EAF2EF;
            border-radius: 14px;
            padding: 16px 14px;
            text-align: center;
            transition: all .2s ease;
        }
        .min-feature:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .min-feature i {
            display: block;
            color: var(--primary);
            font-size: 22px;
            margin-bottom: 8px;
        }
        .min-feature span {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-body);
            display: block;
            line-height: 1.5;
        }

        /* Side */
        .side-card {
            padding: 22px;
        }
        .side-card h3 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 14px;
            position: relative;
            padding-left: 14px;
        }
        .side-card h3::before {
            content: "";
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            border-radius: 4px;
            background: var(--energy);
        }
        .side-tier {
            list-style: none;
            display: grid;
            gap: 10px;
        }
        .side-tier li {
            background: #F8FBF9;
            border: 1px solid #EAF2EF;
            border-radius: 10px;
            padding: 10px 12px;
        }
        .side-tier .tier-name {
            display: block;
            font-weight: 700;
            font-size: 15px;
            color: var(--primary-deeper);
        }
        .side-tier .tier-tag {
            font-size: 13px;
            color: var(--muted);
        }
        .side-menu {
            list-style: none;
            display: grid;
            gap: 4px;
        }
        .side-menu a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 9px 10px;
            border-radius: 10px;
            color: #40594C;
            font-size: 14px;
            font-weight: 500;
            transition: all .2s ease;
        }
        .side-menu a i {
            color: #9AB9AE;
            font-size: 13px;
        }
        .side-menu a:hover {
            background: var(--primary-mist);
            color: var(--primary);
            padding-left: 14px;
        }
        .device-line {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            font-size: 14px;
            color: var(--muted);
        }
        .device-line i {
            width: 22px;
            color: var(--primary);
            text-align: center;
        }

        /* Compare table */
        .cmp-table {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .cmp-row {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1.05fr 1.15fr;
            gap: 14px;
            align-items: center;
            padding: 14px 18px;
        }
        .cmp-row + .cmp-row {
            border-top: 1px solid var(--line);
        }
        .cmp-head {
            background: var(--primary-deeper);
            color: #fff;
            gap: 12px;
        }
        .cmp-head .cmp-label,
        .cmp-head .cmp-cell {
            color: #fff;
        }
        .cmp-label,
        .cmp-cell {
            font-size: 14px;
        }
        .cmp-label {
            font-weight: 700;
            color: var(--text-body);
        }
        .cmp-cell {
            color: var(--muted);
        }
        .cmp-name {
            font-weight: 800;
            font-size: 17px;
            color: #fff;
        }
        .cmp-name small {
            display: block;
            font-size: 12px;
            color: #B9CEC2;
            font-weight: 400;
            margin-top: 2px;
        }
        .plan-recommended {
            background: rgba(11, 110, 79, .06);
            color: var(--primary) !important;
            font-weight: 600;
        }
        .cmp-head .plan-recommended {
            background: rgba(255, 255, 255, .08);
            color: #F6DFA7 !important;
        }
        .plan-mark {
            display: inline-block;
            background: var(--energy);
            color: #3A2C10;
            font-size: 11px;
            font-weight: 700;
            border-radius: 999px;
            padding: 1px 8px;
            margin-left: 6px;
        }

        /* Mobile price card */
        .price-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 18px;
            box-shadow: var(--shadow-card);
            padding: 24px;
            display: flex;
            flex-direction: column;
        }
        .price-card.premium {
            border: 1.5px solid var(--primary);
            box-shadow: 0 18px 36px rgba(11, 110, 79, .12);
        }
        .price-title {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary-deeper);
        }
        .price-feature-list {
            margin: 18px 0 0;
            list-style: none;
            display: grid;
            gap: 10px;
        }
        .price-feature-list li {
            position: relative;
            padding-left: 26px;
            font-size: 14px;
            color: var(--text-body);
        }
        .price-feature-list li::before {
            content: "\f00c";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--primary);
            font-size: 13px;
        }
        .price-note {
            margin-top: auto;
            padding-top: 16px;
            font-size: 12px;
            color: var(--muted);
        }

        /* Dark preview */
        .preview-dark {
            background: linear-gradient(180deg, rgba(4, 47, 36, .97), rgba(11, 110, 79, .90)), url('/assets/images/backpic/back-2.webp') center/cover fixed;
            color: #fff;
        }
        .preview-dark .section-title {
            color: #fff;
        }
        .preview-dark .section-desc {
            color: #B9CEC2;
        }
        .preview-card {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .16);
            box-shadow: none;
            overflow: hidden;
        }
        .preview-card h3 {
            color: #fff;
            font-size: 18px;
            margin: 6px 0;
        }
        .preview-card p {
            color: #B9CEC2;
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .preview-thumb {
            position: relative;
            height: 190px;
            overflow: hidden;
        }
        .preview-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .lock-layer {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: rgba(4, 47, 36, .55);
            backdrop-filter: blur(1.6px);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
        }
        .lock-layer i {
            color: var(--energy);
            font-size: 24px;
        }
        .lock-layer span {
            font-size: 12px;
            letter-spacing: .06em;
            background: rgba(255, 255, 255, .14);
            padding: 3px 10px;
            border-radius: 999px;
        }

        /* Flow */
        .flow-step {
            position: relative;
            padding: 24px 20px 22px;
            transition: all .2s ease;
        }
        .flow-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 14px;
            margin-bottom: 14px;
            box-shadow: 0 6px 12px rgba(11, 110, 79, .16);
        }
        .flow-step h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }
        .flow-step p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-list {
            max-width: 880px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--line);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--line);
        }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            background: transparent;
            border: 0;
            cursor: pointer;
            text-align: left;
            padding: 18px 12px 18px 0;
            color: var(--text-body);
            font-size: 16px;
            font-weight: 600;
            transition: color .2s ease;
        }
        .faq-q:hover {
            color: var(--primary);
        }
        .faq-q .faq-icon {
            flex: 0 0 30px;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            border: 1px solid var(--line);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            background: #fff;
            font-size: 14px;
            transition: all .25s ease;
        }
        .faq-item.open .faq-q .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
            padding-left: 2px;
        }
        .faq-item.open .faq-a {
            max-height: 520px;
        }
        .faq-answer {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
            padding: 0 40px 20px 0;
            margin: 0;
        }

        /* CTA */
        .cta-panel {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 24px;
            box-shadow: 0 22px 44px rgba(16, 25, 22, .08);
            padding: 32px;
        }
        .field-main {
            width: 100%;
            padding: 13px 14px;
            border: 1.5px solid var(--line);
            border-radius: 10px;
            background: #F9FBFA;
            color: var(--text-body);
            transition: all .2s ease;
            font-size: 16px;
        }
        .field-main::placeholder {
            color: #94A79C;
        }
        .field-main:focus {
            border-color: var(--primary);
            background: #fff;
            outline: 3px solid rgba(11, 110, 79, .12);
        }
        .cta-side-card {
            background: linear-gradient(135deg, var(--primary-deeper), var(--primary));
            border-radius: 18px;
            color: #fff;
            padding: 22px;
            height: 100%;
        }
        .cta-side-card .price-tag {
            color: var(--energy);
            font-weight: 800;
            font-size: 22px;
        }

        /* Footer */
        .footer-dist {
            background: var(--primary-deeper);
            color: #cfe3d8;
            margin-top: 0;
        }
        .footer-link {
            color: #cfe3d8;
        }
        .footer-link:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        /* Mobile */
        @media (min-width: 768px) {
            .mobile-nav-toggle {
                display: none !important;
            }
        }
        @media (max-width: 767.98px) {
            body.nav-open {
                overflow: hidden;
            }
            .hdr-mini {
                display: none;
            }
            .icon-btn.mobile-nav-toggle {
                display: inline-flex;
            }
            .nav-bar {
                position: fixed;
                top: 64px;
                right: 0;
                width: min(82vw, 340px);
                height: calc(100vh - 64px);
                transform: translateX(105%);
                transition: transform .26s ease;
                background: #fff;
                border-left: 1px solid var(--line);
                box-shadow: -16px 0 30px rgba(4, 47, 36, .16);
                overflow-y: auto;
                z-index: 60;
            }
            body.nav-open .nav-bar {
                transform: translateX(0);
            }
            .nav-inner {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 20px;
            }
            .nav-list {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .nav-link {
                padding: 13px 10px;
            }
            .nav-link::after {
                left: 10px;
                right: auto;
                width: 22px;
                height: 3px;
                bottom: 8px;
                transform: scaleX(0);
            }
            .nav-inner .flex.ml-auto {
                display: none;
            }
        }

/* roulang page: category4 */
:root {
            --c-primary: #0B6E4F;
            --c-primary-light: #059669;
            --c-primary-deep: #0A5B44;
            --c-ink: #042F24;
            --c-canvas: #F7FAF8;
            --c-panel: #FFFFFF;
            --c-text: #26342E;
            --c-muted: #5C6F64;
            --c-line: #E2EAE6;
            --c-amber: #F2A530;
            --c-amber-dark: #D98E2E;
            --c-navy: #101916;
            --c-soft-green: #E9F3EF;
            --c-soft-amber: #FEF4E4;
            --radius-lg: 14px;
            --radius-md: 10px;
            --radius-btn: 8px;
            --shadow-card: 0 1px 2px rgba(16, 25, 22, 0.04), 0 8px 20px rgba(16, 25, 22, 0.06);
            --shadow-hover: 0 4px 10px rgba(16, 25, 22, 0.06), 0 16px 34px rgba(16, 25, 22, 0.1);
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            background: var(--c-canvas);
            color: var(--c-text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        img {
            max-width: 100%;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }

        .container-ui {
            width: 100%;
            max-width: 1200px;
            margin-inline: auto;
            padding-inline: 24px;
        }

        @media (max-width: 767px) {
            .container-ui {
                padding-inline: 16px;
            }
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            width: 100%;
        }

        .header-top {
            height: 62px;
            background: var(--c-primary);
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .header-top-inner {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 12px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: #ffffff;
            color: var(--c-primary);
            box-shadow: 0 2px 8px rgba(4, 47, 36, 0.15);
        }

        .brand-mark svg {
            width: 25px;
            height: 25px;
        }

        .brand-copy {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }

        .brand-name {
            font-size: 20px;
            font-weight: 900;
            letter-spacing: -0.2px;
            color: #fff;
        }

        .brand-sub {
            margin-top: 3px;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.22em;
            color: var(--c-amber);
        }

        .hdr-mini {
            display: flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.82);
            font-size: 13px;
            white-space: nowrap;
        }

        .hdr-mini .hot-dot {
            width: 7px;
            height: 7px;
            border-radius: 99px;
            background: var(--c-amber);
            box-shadow: 0 0 0 4px rgba(242, 165, 48, 0.14);
        }

        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 0;
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 17px;
            cursor: pointer;
            transition: background .2s ease, transform .2s ease;
        }

        .icon-btn:hover {
            background: rgba(255, 255, 255, 0.22);
            transform: translateY(-1px);
        }

        .icon-btn:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 2px;
        }

        .mobile-nav-toggle {
            display: none;
        }

        .nav-bar {
            background: #fff;
            border-bottom: 1px solid var(--c-line);
            box-shadow: 0 1px 0 rgba(16, 25, 22, 0.02);
        }

        .nav-inner {
            min-height: 54px;
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .nav-list {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 0;
            margin: 0;
            flex: 1;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 54px;
            padding: 0 16px;
            color: var(--c-muted);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            white-space: nowrap;
            transition: color .2s ease;
        }

        .nav-link:hover {
            color: var(--c-primary);
        }

        .nav-link.active {
            color: var(--c-primary);
            font-weight: 700;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: -1px;
            height: 3px;
            border-radius: 4px 4px 0 0;
            background: var(--c-primary);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            padding: 3px 10px;
            line-height: 1.5;
        }

        .badge-amber {
            background: var(--c-soft-amber);
            color: #A5650B;
            border: 1px solid #F8DFAE;
        }

        .nav-inner .hdr-mini {
            color: var(--c-muted);
            font-size: 13px;
        }

        .search-panel {
            display: none;
            position: absolute;
            left: 0;
            right: 0;
            top: 116px;
            background: var(--c-ink);
            color: #fff;
            border-bottom: 1px solid rgba(242, 165, 48, 0.35);
            box-shadow: 0 16px 34px rgba(4, 47, 36, 0.16);
        }

        .search-panel.show {
            display: block;
        }

        .input-main {
            width: 100%;
            padding: 12px 4px;
            background: transparent;
            border: 0;
            outline: none;
            color: #fff;
            font-size: 17px;
            caret-color: var(--c-amber);
            -webkit-appearance: none;
        }

        .input-main::placeholder {
            color: rgba(255, 255, 255, 0.5);
            font-size: 15px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 46px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            border: 0;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: background .22s ease, transform .22s ease, box-shadow .22s ease, color .22s ease;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(5, 150, 105, 0.35);
            outline-offset: 2px;
        }

        .btn-solid {
            background: var(--c-primary);
            color: #fff;
            box-shadow: 0 8px 22px rgba(11, 110, 79, 0.2);
        }

        .btn-solid:hover {
            background: var(--c-primary-deep);
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(11, 110, 79, 0.25);
        }

        .btn-soft {
            background: #fff;
            color: var(--c-primary);
            border: 1.5px solid #B8D3C5;
        }

        .btn-soft:hover {
            background: var(--c-soft-green);
            border-color: var(--c-primary);
            transform: translateY(-2px);
        }

        .btn-ghost {
            background: transparent;
            color: var(--c-primary);
            padding-inline: 10px;
        }

        .btn-ghost:hover {
            background: var(--c-soft-green);
            color: var(--c-primary);
        }

        .page-hero {
            position: relative;
            padding: 70px 0 82px;
            border-bottom: 1px solid var(--c-line);
            background: linear-gradient(90deg, rgba(247, 250, 248, 0.98) 0%, rgba(247, 250, 248, 0.94) 56%, rgba(233, 243, 239, 0.85)), url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--c-muted);
            margin-bottom: 28px;
        }

        .breadcrumb a {
            color: var(--c-primary);
            font-weight: 500;
        }

        .breadcrumb i {
            color: #9BB4A6;
            font-size: 11px;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-primary);
            background: #fff;
            border: 1px solid #CBE0D4;
            border-radius: 999px;
            padding: 6px 14px;
            box-shadow: 0 4px 14px rgba(11, 110, 79, 0.05);
        }

        .hero-title {
            margin: 22px 0 16px;
            font-size: 44px;
            line-height: 1.25;
            font-weight: 900;
            color: var(--c-ink);
            letter-spacing: -0.02em;
        }

        .hero-title .accent {
            color: var(--c-primary);
        }

        .hero-desc {
            max-width: 650px;
            font-size: 17px;
            line-height: 1.85;
            color: #3E5148;
            margin: 0 0 30px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .hero-visual {
            position: relative;
        }

        .hero-visual .cover-wrap {
            border-radius: 20px;
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-hover);
        }

        .hero-visual img {
            width: 100%;
            min-height: 260px;
            object-fit: cover;
        }

        .visual-caption {
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 16px;
            background: rgba(4, 47, 36, 0.82);
            backdrop-filter: blur(6px);
            color: #fff;
            padding: 14px 16px;
            border-radius: 14px;
            border: 1px solid rgba(255, 255, 255, 0.16);
        }

        .visual-caption strong {
            display: block;
            font-size: 15px;
            font-weight: 800;
        }

        .visual-caption span {
            color: rgba(255, 255, 255, 0.74);
            font-size: 13px;
        }

        .section-pad {
            padding: 88px 0;
        }

        .section-pad-sm {
            padding: 72px 0;
        }

        .bg-muted-section {
            background: #F1F6F2;
        }

        .section-heading {
            max-width: 790px;
            margin-bottom: 44px;
        }

        .section-heading.center {
            margin-inline: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--c-primary);
            background: var(--c-soft-green);
            border: 1px solid #C7DFD2;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .08em;
            text-transform: uppercase;
        }

        .section-heading h2 {
            font-size: 31px;
            font-weight: 900;
            color: var(--c-ink);
            line-height: 1.35;
            margin: 18px 0 12px;
        }

        .section-heading p {
            color: var(--c-muted);
            font-size: 16px;
            line-height: 1.8;
            margin: 0;
        }

        .help-tile-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .help-tile {
            position: relative;
            background: #fff;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
        }

        .help-tile:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: #B8DCC9;
        }

        .tile-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 13px;
            background: var(--c-soft-green);
            color: var(--c-primary);
            font-size: 19px;
            margin-bottom: 18px;
        }

        .tile-title {
            font-size: 19px;
            font-weight: 800;
            color: var(--c-ink);
            margin: 0 0 8px;
        }

        .tile-desc {
            color: var(--c-muted);
            font-size: 14px;
            line-height: 1.75;
            margin: 0 0 14px;
        }

        .tile-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--c-primary);
        }

        .tile-more i {
            transition: transform .2s ease;
        }

        .help-tile:hover .tile-more i {
            transform: translateX(4px);
        }

        .process-band {
            background: linear-gradient(rgba(4, 47, 36, 0.93), rgba(4, 47, 36, 0.96)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            color: #fff;
            padding: 86px 0;
            border-top: 4px solid rgba(242, 165, 48, 0.5);
            border-bottom: 4px solid rgba(242, 165, 48, 0.18);
        }

        .process-band h2 {
            color: #fff;
        }

        .process-band h2 small {
            color: var(--c-amber);
        }

        .process-caption {
            color: rgba(255, 255, 255, 0.76);
            font-size: 15px;
            max-width: 720px;
            line-height: 1.8;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .process-item {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 16px;
            padding: 28px 24px;
            transition: background .22s ease, transform .22s ease;
        }

        .process-item:hover {
            background: rgba(255, 255, 255, 0.11);
            transform: translateY(-3px);
        }

        .step-no {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 34px;
            height: 30px;
            padding: 0 8px;
            border-radius: 999px;
            background: rgba(242, 165, 48, 0.14);
            color: #F7B84E;
            font-size: 14px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .process-item h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            margin: 0 0 10px;
        }

        .process-item p {
            color: rgba(255, 255, 255, 0.68);
            font-size: 14px;
            line-height: 1.78;
            margin: 0;
        }

        .context-row {
            display: grid;
            grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
            gap: 56px;
            align-items: center;
        }

        .context-title {
            font-size: 30px;
            line-height: 1.45;
            font-weight: 900;
            color: var(--c-ink);
            margin: 14px 0 18px;
        }

        .context-body {
            color: var(--c-muted);
            font-size: 15px;
            margin: 0 0 22px;
        }

        .context-card {
            background: #fff;
            border: 1px solid var(--c-line);
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .context-card img {
            width: 100%;
            height: 210px;
            object-fit: cover;
        }

        .context-card-body {
            padding: 24px;
        }

        .list-check {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 13px;
        }

        .list-check li {
            position: relative;
            padding-left: 30px;
            color: var(--c-text);
            font-size: 15px;
            line-height: 1.7;
        }

        .list-check li i {
            position: absolute;
            left: 0;
            top: 3px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--c-soft-green);
            color: var(--c-primary);
            font-size: 11px;
        }

        .side-note {
            background: #FEF9EF;
            border-left: 4px solid var(--c-amber);
            border-radius: 4px 14px 14px 4px;
            padding: 18px 20px;
            font-size: 14px;
            color: #6C5A2D;
            margin-top: 22px;
        }

        .faq-section {
            background: var(--c-canvas);
        }

        .faq-wrap {
            max-width: 900px;
        }

        .faq-wrap details {
            border-bottom: 1px solid var(--c-line);
            border-radius: 0;
            background: transparent;
            padding: 0 6px;
        }

        .faq-wrap details[open] {
            background: rgba(233, 243, 239, 0.25);
        }

        .faq-wrap summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 22px 0;
            transition: color .2s ease;
        }

        .faq-wrap summary::-webkit-details-marker {
            display: none;
        }

        .faq-wrap summary:hover .faq-q {
            color: var(--c-primary);
        }

        .faq-q {
            font-size: 17px;
            font-weight: 700;
            color: var(--c-ink);
            line-height: 1.55;
            transition: color .2s ease;
        }

        .faq-arrow {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--c-soft-green);
            border: 1px solid #CBE5D5;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--c-primary);
            font-size: 14px;
            flex-shrink: 0;
            margin-left: auto;
            transition: transform .25s ease, background .25s ease, color .25s ease;
        }

        .faq-wrap details[open] .faq-arrow {
            transform: rotate(135deg);
            background: var(--c-primary);
            color: #fff;
            border-color: var(--c-primary);
        }

        .faq-a {
            padding: 0 0 26px;
            color: var(--c-muted);
            font-size: 15px;
            line-height: 1.9;
            max-width: 860px;
        }

        .cta-panel {
            display: grid;
            grid-template-columns: 1fr auto;
            justify-content: space-between;
            gap: 28px;
            align-items: center;
            background: #fff;
            border: 1px solid #CDE1D5;
            border-radius: 24px;
            padding: 48px;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--c-primary), var(--c-amber));
        }

        .cta-panel h2 {
            font-size: 26px;
            font-weight: 900;
            color: var(--c-ink);
            margin: 0 0 12px;
        }

        .cta-panel p {
            margin: 0;
            color: var(--c-muted);
            font-size: 15px;
            max-width: 700px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-dist {
            background: var(--c-ink);
        }

        .footer-link {
            color: #A9C9B6;
            transition: color .2s ease, padding-left .2s ease;
        }

        .footer-link:hover {
            color: #fff;
            padding-left: 4px;
        }

        @media (max-width: 1023px) {
            .page-hero {
                padding: 56px 0 64px;
            }

            .hero-title {
                font-size: 38px;
            }

            .help-tile-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid {
                grid-template-columns: 1fr;
            }

            .context-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 767px) {
            .header-top {
                height: 58px;
            }

            .brand-name {
                font-size: 19px;
            }

            .hdr-mini {
                display: none !important;
            }

            .desktop-actions {
                margin-left: auto;
            }

            .icon-btn {
                width: 40px;
                height: 40px;
            }

            .mobile-nav-toggle {
                display: inline-flex;
            }

            .nav-bar {
                display: none;
            }

            .site-header.menu-open .nav-bar {
                display: block;
                max-height: calc(100vh - 58px);
                overflow-y: auto;
                position: absolute;
                left: 0;
                right: 0;
                top: 58px;
                background: #fff;
                border-bottom: 2px solid var(--c-primary);
                box-shadow: 0 26px 48px rgba(16, 25, 22, 0.18);
            }

            .nav-inner {
                flex-direction: column;
                align-items: stretch;
                padding-block: 12px;
                gap: 4px;
            }

            .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
            }

            .nav-link {
                height: auto;
                min-height: 48px;
                justify-content: flex-start;
                padding-inline: 12px;
                border-radius: 10px;
                font-size: 16px;
            }

            .nav-link.active {
                background: var(--c-soft-green);
            }

            .nav-link.active::after {
                left: auto;
                right: auto;
                width: 4px;
                height: 24px;
                top: 12px;
                bottom: auto;
                border-radius: 0 4px 4px 0;
            }

            .search-panel {
                top: 58px;
            }

            .section-pad {
                padding: 64px 0;
            }

            .section-pad-sm {
                padding: 56px 0;
            }

            .section-heading h2 {
                font-size: 26px;
                line-height: 1.45;
            }

            .hero-title {
                font-size: 32px;
            }

            .hero-desc {
                font-size: 16px;
            }

            .help-tile-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .help-tile {
                padding: 24px 20px;
            }

            .cta-panel {
                grid-template-columns: 1fr;
                padding: 30px 24px;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .faq-q {
                font-size: 16px;
            }

            .context-card img {
                height: 180px;
            }
        }

        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .brand-copy .brand-name {
                font-size: 17px;
            }
        }