/* roulang page: index */
:root{
        --paper:#F7F4EE;
        --surface:#FFFFFF;
        --ink:#18231F;
        --muted:#69746E;
        --line:#E6E1D6;
        --pine:#1B3A34;
        --pine-deep:#0E211D;
        --copper:#AE895F;
        --fs-h1:clamp(2.75rem,6vw,4.5rem);
        --fs-h2:clamp(1.75rem,3vw,2.5rem);
        --fs-h3:1.375rem;
        --shadow-sm:0 1px 2px rgba(23,33,30,0.05);
        --shadow-md:0 18px 40px -30px rgba(23,33,30,0.28);
        --radius:8px;
    }

    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
        margin:0;
        background:var(--paper);
        color:var(--ink);
        font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
        line-height:1.75;
        -webkit-font-smoothing:antialiased;
    }
    h1,h2,h3{
        font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
        font-weight:600;
        line-height:1.25;
        letter-spacing:.01em;
    }
    img{display:block;max-width:100%;height:auto}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit;color:inherit}
    .container-x{width:min(1200px,100% - 40px);margin-inline:auto}
    .section-space{padding-block:6.5rem}
    .section-kicker{
        display:inline-flex;align-items:center;gap:.75rem;
        color:var(--pine);
        font-size:.82rem;letter-spacing:.18em;font-weight:600;
    }
    .section-kicker::before{
        content:"";width:26px;height:1px;background:var(--copper);
        display:inline-block;
    }
    .section-title{
        font-size:var(--fs-h2);color:var(--pine-deep);
        margin:.8rem 0 1.2rem;
    }

    /* Header */
    .site-header{
        position:sticky;top:0;z-index:60;
        background:rgba(247,244,238,.93);
        backdrop-filter:blur(8px);
        border-bottom:1px solid var(--line);
        transition:box-shadow .3s ease;
    }
    .site-header.is-scrolled{box-shadow:0 20px 40px -45px rgba(0,0,0,.7)}
    .masthead{
        display:flex;align-items:center;justify-content:space-between;
        min-height:68px;gap:1rem;
    }
    .brand-lockup{display:flex;align-items:center;gap:.6rem;flex-shrink:0}
    .brand-mark{width:36px;height:36px;color:var(--pine)}
    .brand-type{display:flex;flex-direction:column;line-height:1.25}
    .brand-word{
        font-size:1.4rem;font-weight:700;color:var(--pine-deep);
        letter-spacing:.06em;font-family:"Songti SC","Noto Serif SC",serif;
    }
    .brand-note{
        font-size:.68rem;color:var(--muted);letter-spacing:.18em;
        border-left:2px solid var(--copper);
        padding-left:.5rem;margin-top:.1rem;
    }
    .brand-action .btn{min-height:38px;padding-inline:1.1rem;font-size:.9rem}
    .channel-nav{
        display:flex;align-items:center;gap:2rem;
        border-top:1px solid var(--line);
        min-height:48px;
        overflow-x:auto;scrollbar-width:none;
        scroll-snap-type:x proximity;
    }
    .channel-nav::-webkit-scrollbar{display:none}
    .channel-nav a{
        position:relative;color:var(--muted);
        font-size:.95rem;white-space:nowrap;
        padding:.7rem .1rem;
        transition:color .2s ease;
        scroll-snap-align:start;
        min-height:44px;display:inline-flex;align-items:center;
    }
    .channel-nav a::after{
        content:"";position:absolute;left:0;right:100%;bottom:0;
        height:2px;background:var(--copper);
        transition:right .28s ease;
    }
    .channel-nav a:hover{color:var(--pine-deep)}
    .channel-nav a:hover::after{right:0}
    .channel-nav a.is-active{color:var(--pine)}
    .channel-nav a.is-active::after{right:0}
    @media(max-width:520px){
        .brand-action .btn{font-size:.85rem;padding-inline:.9rem;min-height:38px}
        .brand-word{font-size:1.22rem}
        .brand-note{display:none}
    }

    /* buttons */
    .btn{
        display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
        min-height:44px;padding:.6rem 1.5rem;
        border-radius:6px;border:1px solid transparent;
        cursor:pointer;font-size:.95rem;font-weight:500;
        transition:all .2s ease;letter-spacing:.03em;
    }
    .btn-pine{background:var(--pine);color:#fff}
    .btn-pine:hover{background:#2a514a;transform:translateY(-1px);box-shadow:var(--shadow-md)}
    .btn-line{background:transparent;border-color:rgba(255,255,255,.65);color:#fff}
    .btn-line:hover{background:var(--pine);border-color:var(--pine)}
    .btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
    .btn-ghost:hover{background:var(--pine);border-color:var(--pine);color:#fff}
    .btn-white{background:#fff;border-color:transparent;color:var(--pine-deep)}
    .btn-white:hover{background:var(--copper);color:#fff}
    .btn:focus-visible,.site-header a:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{
        outline:2px solid var(--copper);outline-offset:2px;
    }

    /* hero */
    .hero{
        position:relative;
        min-height:86vh;
        display:flex;align-items:center;
        color:#fff;
        background:
            linear-gradient(90deg, rgba(12,26,22,.93) 0%, rgba(12,26,22,.72) 45%, rgba(12,26,22,.22) 100%),
            linear-gradient(0deg, rgba(12,26,22,.9) 0%, rgba(12,26,22,.1) 60%),
            url('/assets/images/backpic/back-1.png') center/cover no-repeat;
        padding-block:4rem;
    }
    .hero::after{
        content:"";position:absolute;left:0;right:0;bottom:0;
        height:90px;pointer-events:none;
        background:linear-gradient(0deg,var(--paper) 4%,rgba(247,244,238,.88) 30%,transparent);
    }
    .hero-inner{
        position:relative;z-index:2;
        display:grid;grid-template-columns:1fr 240px;gap:3.5rem;
    }
    .hero-kicker{
        display:flex;align-items:center;gap:.8rem;
        font-size:.8rem;letter-spacing:.22em;color:rgba(255,255,255,.85);
    }
    .hero-kicker::before{content:"";width:32px;height:1px;background:var(--copper)}
    .hero-title{
        font-size:clamp(3.4rem,8vw,7.1rem);
        color:#fff;
        margin:1.5rem 0 .4rem;
    }
    .hero-title .subline{
        display:block;
        font-size:clamp(1.3rem,2.4vw,2.1rem);
        color:rgba(255,255,255,.92);
        margin-top:.3rem;
        font-weight:500;
        letter-spacing:.06em;
        border-left:2px solid var(--copper);
        padding-left:1rem;
    }
    .hero-desc{
        max-width:780px;
        margin-top:1.8rem;
        margin-bottom:2.2rem;
        font-size:1.06rem;
        line-height:1.95;
        color:rgba(255,255,255,.82);
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:1rem;align-items:center}
    .hero-service-line{
        display:flex;align-items:center;gap:1rem;margin-top:1.6rem;
        font-size:.85rem;color:rgba(255,255,255,.7);
        border-top:1px solid rgba(255,255,255,.14);
        padding-top:1.2rem;
    }
    .hero-service-line b{color:#fff;font-weight:500;position:relative;padding-left:.8rem}
    .hero-service-line b::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:5px;height:5px;background:var(--copper);border-radius:50%}

    .hero-aside{
        align-self:end;border-left:1px solid rgba(255,255,255,.18);
        padding-left:1.6rem;padding-bottom:.8rem;
    }
    .hero-aside h2{
        font-size:.85rem;letter-spacing:.18em;font-weight:500;
        color:rgba(255,255,255,.85);font-family:inherit;margin:0 0 1.4rem;
    }
    .hero-aside a{
        display:flex;justify-content:space-between;gap:1rem;
        padding:.8rem 0;font-size:.92rem;
        color:rgba(255,255,255,.82);
        border-bottom:1px solid rgba(255,255,255,.1);
        transition:color .2s ease,padding-left .2s ease;
    }
    .hero-aside a:last-child{border-bottom:none}
    .hero-aside a:hover{color:var(--copper);padding-left:.3rem}
    @media(max-width:900px){
        .hero-inner{grid-template-columns:1fr}
        .hero-aside{display:none}
        .hero{min-height:720px;background:
            linear-gradient(90deg, rgba(12,26,22,.93) 0%, rgba(12,26,22,.78) 55%, rgba(12,26,22,.55) 100%),
            url('/assets/images/backpic/back-1.png') center/cover no-repeat;}
    }

    /* brand */
    .brand-layout{display:grid;grid-template-columns:minmax(250px,30%) 1fr;gap:5.5rem;align-items:start}
    .brand-sticky{position:sticky;top:130px}
    .brand-copy-title{
        font-family:"Noto Serif SC",serif;
        font-size:var(--fs-h2);
        color:var(--pine-deep);
        line-height:1.45;
        margin-bottom:2rem;
    }
    .lead-paragraph{
        font-size:1.5rem;line-height:1.65;font-weight:400;
        color:var(--ink);
        font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
        border-bottom:1px solid var(--line);
        padding-bottom:2rem;margin:0 0 1.8rem;
    }
    .paragraph-gap{margin-bottom:1.2rem;font-size:1.02rem;color:#34423d}
    .metric-grid{
        display:grid;grid-template-columns:repeat(3,1fr);
        margin-top:2.6rem;gap:1.6rem;
    }
    .metric-item{
        border-top:1px solid var(--pine);
        padding-top:1.4rem;
    }
    .metric-item strong{
        font-family:Georgia,"Times New Roman",serif;
        font-size:2.5rem;font-weight:500;color:var(--pine-deep);
    }
    .metric-item span{display:block;margin-top:.4rem;font-size:.9rem;color:var(--muted)}
    @media(max-width:1100px){.brand-layout{grid-template-columns:1fr;gap:2rem}.brand-sticky{position:static}}
    @media(max-width:640px){.metric-grid{grid-template-columns:1fr 1fr}.lead-paragraph{font-size:1.26rem}}

    /* featured */
    .section-featured{background:var(--paper)}
    .grid-featured{
        display:grid;grid-template-columns:1.35fr 1fr;
        grid-template-rows:repeat(2,auto);
        gap:1.6rem;
    }
    .card-main{grid-row:span 2}
    .feature-card{
        background:var(--surface);
        border:1px solid var(--line);
        border-radius:var(--radius);
        overflow:hidden;
        transition:box-shadow .3s ease,transform .3s ease;
    }
    .feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
    .feature-card .card-figure{position:relative;overflow:hidden;background:#DAD4CA;aspect-ratio:16/9}
    .card-main .card-figure{aspect-ratio:4/3}
    .feature-card .card-figure img{
        width:100%;height:100%;object-fit:cover;
        transition:transform .5s ease;
    }
    .feature-card:hover .card-figure img{transform:scale(1.03)}
    .card-channel{
        position:absolute;left:1rem;top:1rem;z-index:2;
        padding:.3rem .8rem;border-radius:999px;
        background:rgba(255,255,255,.9);color:var(--pine);
        font-size:.82rem;
    }
    .card-body{padding:1.6rem 1.6rem 1.3rem}
    .card-small-body{padding:1.4rem}
    .card-body h3,.card-small-body h3{
        font-family:"Noto Serif SC",serif;
        color:var(--pine-deep);
        margin:.2rem 0 .75rem;
    }
    .card-main h3{font-size:1.7rem}
    .feature-card p{color:var(--muted);margin-bottom:1.2rem;font-size:.98rem;line-height:1.8}
    .card-link{
        display:inline-flex;align-items:center;gap:.4rem;
        color:var(--pine);font-weight:600;
        border-bottom:1px solid transparent;
        transition:border-color .2s ease;
    }
    .card-link:hover{border-color:var(--copper);color:var(--pine-deep)}
    @media(max-width:1000px){.grid-featured{grid-template-columns:1fr}.card-main{grid-row:auto}}

    /* proof */
    .section-proof{
        background:var(--pine-deep);
        color:#fff;
    }
    .proof-meta{
        display:inline-block;font-size:.85rem;letter-spacing:.18em;
        color:rgba(255,255,255,.7);border-left:2px solid var(--copper);
        padding-left:.8rem;margin-bottom:1.2rem;
    }
    .proof-title{
        font-family:"Noto Serif SC",serif;
        font-size:var(--fs-h2);line-height:1.4;
        max-width:920px;margin-bottom:2.8rem;
    }
    .proof-grid{
        display:grid;grid-template-columns:repeat(4,1fr);
        border-top:1px solid rgba(255,255,255,.16);
    }
    .proof-grid .proof-cell{
        padding:1.8rem 1.6rem 1.8rem 0;
        border-left:1px solid rgba(255,255,255,.1);
    }
    .proof-grid .proof-cell:first-child{border-left:none}
    .proof-index{color:var(--copper);font-size:.8rem;letter-spacing:.1em;font-weight:600}
    .proof-cell h3{font-family:inherit;font-size:1.08rem;font-weight:600;margin:.9rem 0 .6rem;color:#fff}
    .proof-cell p{color:rgba(255,255,255,.68);font-size:.9rem;line-height:1.75;margin:0}
    @media(max-width:1000px){.proof-grid{grid-template-columns:repeat(2,1fr);gap:1rem}}
    @media(max-width:900px){.proof-grid .proof-cell{grid-column:span 1}.proof-title{font-size:1.9rem}}
    @media(max-width:570px){.proof-grid{grid-template-columns:1fr;border-left:none}.proof-grid .proof-cell{border-left:2px solid var(--copper);padding-left:1rem;border-top:1px solid rgba(255,255,255,.1);border-left-width:2px}}

    /* news */
    .section-news{background:#f1eee7}
    .news-head-row{
        display:flex;justify-content:space-between;align-items:end;
        margin-bottom:2.4rem;gap:2rem;
    }
    .news-list{border-top:1px solid var(--line)}
    .news-row{
        display:grid;grid-template-columns:110px minmax(0,1fr) 120px 30px;
        column-gap:2rem;align-items:baseline;
        border-bottom:1px solid var(--line);
        padding:1.6rem 0;
        transition:background .2s ease;
    }
    .news-row:hover{background:rgba(255,255,255,.65);padding-inline:1rem;margin-inline:-1rem;border-radius:4px}
    .news-date{
        color:var(--muted);font-size:.9rem;
        font-variant-numeric:tabular-nums;
    }
    .news-title{
        font-family:"Noto Serif SC",serif;
        font-size:1.35rem;margin:0 0 .35rem;color:var(--pine-deep);
    }
    .news-title a{transition:color .2s ease}
    .news-title a:hover{color:var(--copper)}
    .news-excerpt{
        display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
        overflow:hidden;color:var(--muted);
        font-size:.94rem;
    }
    .news-tag{
        justify-self:center;
        background:rgba(27,58,52,.06);color:var(--pine);
        border:1px solid rgba(27,58,52,.14);
        padding:.25rem .75rem;border-radius:999px;
        font-size:.78rem;white-space:nowrap;
    }
    .news-go{color:var(--copper);font-weight:600;text-align:center;font-size:1.2rem}
    .news-empty{
        padding:3.2rem 1rem;border-bottom:1px solid var(--line);
        color:var(--muted);font-size:1rem;text-align:center;
    }
    @media(max-width:860px){
        .news-row{grid-template-columns:1fr auto;row-gap:.8rem}
        .news-date{grid-column:1 / -1;order:-1;font-size:.82rem}
        .news-tag{order:1;justify-self:auto}
        .news-go{order:2}
    }

    /* faq */
    details.faq-item{
        border-bottom:1px solid var(--line);padding:.7rem 0;
    }
    details.faq-item summary{
        list-style:none;cursor:pointer;
        display:flex;justify-content:space-between;align-items:center;gap:1rem;
        padding:1.1rem .2rem;
        font-size:1.05rem;color:var(--pine-deep);
        font-weight:600;min-height:44px;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    .plus-icon{flex-shrink:0;transition:transform .25s ease;color:var(--copper)}
    details[open] .plus-icon{transform:rotate(45deg)}
    .faq-answer{color:var(--muted);padding:0 2rem 1.6rem .2rem;line-height:1.9;font-size:.98rem}
    .faq-note{
        font-size:.8rem;padding:.8rem 1rem .4rem 1rem;
        border-left:2px solid var(--copper);
        background:#eeeae1;border-radius:0 6px 6px 0;
        color:var(--muted);
    }

    /* contact */
    .section-contact{
        background:var(--pine-deep);color:#fff;
    }
    .contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
    .contact-heading{font-size:var(--fs-h2);line-height:1.4;margin-bottom:1.2rem}
    .contact-kicker{color:var(--copper);font-size:.85rem;letter-spacing:.2em}
    .contact-note{color:rgba(255,255,255,.7);line-height:1.95;max-width:560px}
    .form-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);padding:2rem;border-radius:var(--radius)}
    .form-label{display:block;font-size:.9rem;color:rgba(255,255,255,.82);margin-bottom:.5rem}
    .form-input{
        display:block;width:100%;background:rgba(255,255,255,.04);
        border:1px solid rgba(255,255,255,.25);border-radius:6px;
        min-height:48px;padding:.8rem .9rem;color:#fff;margin-bottom:1.5rem;
        transition:border .2s ease;
    }
    .form-input::placeholder{color:rgba(255,255,255,.4)}
    .form-input:focus{outline:none;border-color:var(--copper)}
    textarea.form-input{min-height:120px;resize:vertical}
    .form-note{font-size:.78rem;color:rgba(255,255,255,.52);margin-top:.8rem}
    @media(max-width:900px){.contact-grid{grid-template-columns:1fr}.form-card{margin-top:1.5rem}}

    /* footer */
    .site-footer{background:var(--pine-deep);color:rgba(255,255,255,.75)}
    .footer-top{
        display:grid;grid-template-columns:1.6fr 1fr 1fr;
        gap:3rem;padding:4rem 0 3rem;
    }
    .footer-brand .brand-word{color:#fff}
    .footer-desc{font-size:.9rem;color:rgba(255,255,255,.55);max-width:420px;line-height:1.9}
    .footer-title{color:#fff;font-size:.95rem;letter-spacing:.1em;margin-bottom:1.3rem;font-family:inherit}
    .footer-nav-item{display:block;padding:.3rem 0;font-size:.92rem;color:rgba(255,255,255,.68)}
    .footer-nav-item:hover{color:var(--copper)}
    .footer-copy{
        border-top:1px solid rgba(255,255,255,.12);
        padding:1.5rem 0;display:flex;justify-content:space-between;gap:1rem;
        font-size:.82rem;color:rgba(255,255,255,.5);
    }
    @media(max-width:960px){.footer-top{grid-template-columns:1fr}} 
    
    /* transition */
    .fade-up{opacity:0;transform:translateY(12px);transition:opacity .6s ease, transform .6s ease}
    .fade-up.is-visible{opacity:1;transform:translateY(0)}
    @media(prefers-reduced-motion:reduce){
        *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
        .fade-up{opacity:1;transform:none}
    }

/* roulang page: category1 */
:root {
            --paper: #F7F4EE;
            --surface: #FFFFFF;
            --ink: #18231F;
            --muted: #69746E;
            --line: #E6E1D6;
            --pine: #1B3A34;
            --pine-deep: #0E211D;
            --copper: #AE895F;
            --shadow-sm: 0 1px 2px rgba(23, 33, 30, 0.05);
            --shadow-md: 0 18px 40px -30px rgba(23, 33, 30, 0.25);
            --fs-h1: clamp(2.5rem, 5vw, 3.8rem);
            --fs-h2: clamp(2rem, 3.6vw, 3rem);
            --fs-h3: 1.25rem;
        }
        html { scroll-behavior: smooth; }
        body {
            background: var(--paper);
            color: var(--ink);
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.85;
        }
        .font-serif-display {
            font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
            font-weight: 500;
            letter-spacing: 0.01em;
        }
        .container-x { max-width: 1280px; margin: 0 auto; padding-left: 1.5rem; padding-right: 1.5rem; }
        h1, h2, h3 { letter-spacing: -0.01em; }
        a { text-decoration: none; color: inherit; }
        img { object-fit: cover; }
        .section-label {
            font-size: 0.8rem;
            letter-spacing: 0.2em;
            text-transform: uppercase;
            color: var(--copper);
            font-weight: 500;
        }
        .site-header {
            background: var(--paper);
            border-bottom: 1px solid var(--line);
            position: relative;
            z-index: 50;
        }
        .masthead {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            background: var(--paper);
        }
        .brand-lockup { display: flex; align-items: center; gap: 0.7rem; }
        .brand-mark { width: 40px; height: 40px; color: var(--pine); flex-shrink: 0; }
        .brand-type { display: flex; flex-direction: column; line-height: 1.3; }
        .brand-word { font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif; font-size: 1.4rem; color: var(--ink); font-weight: 600; letter-spacing: 0.01em; }
        .brand-note { font-size: 0.75rem; color: var(--muted); letter-spacing: 0.08em; }
        .channel-nav {
            display: flex;
            gap: 2rem;
            overflow-x: auto;
            white-space: nowrap;
            padding: 0.75rem 0;
            border-top: 1px solid var(--line);
            scrollbar-width: none;
        }
        .channel-nav::-webkit-scrollbar { display: none; }
        .channel-nav a {
            font-size: 0.95rem;
            padding: 0.25rem 0.15rem;
            color: var(--ink);
            opacity: 0.72;
            border-bottom: 2px solid transparent;
            font-weight: 500;
            transition: all 0.2s ease;
            flex: 0 0 auto;
        }
        .channel-nav a:hover { opacity: 1; color: var(--pine); border-bottom-color: color-mix(in srgb, var(--copper) 70%, transparent); }
        .channel-nav a.is-active { opacity: 1; color: var(--pine); border-bottom-color: var(--copper); }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 1.4rem;
            border-radius: 6px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.2s ease;
            cursor: pointer;
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .btn-pine { background: var(--pine); color: #fff; }
        .btn-pine:hover { background: var(--pine-deep); transform: translateY(-1px); box-shadow: var(--shadow-md); }
        .btn-ghost { background: transparent; border: 1px solid var(--ink); color: var(--ink); }
        .btn-ghost:hover { background: var(--pine); color: #fff; border-color: var(--pine); }
        .btn-copper { background: var(--copper); color: #fff; }
        .btn-copper:hover { background: #9a784f; transform: translateY(-1px); }
        .card-hover { transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; border: 1px solid var(--line); background: var(--surface); border-radius: 12px; }
        .card-hover:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--copper) 40%, var(--line)); }
        .index-row {
            transition: background .2s, padding .2s;
            border-bottom: 1px solid var(--line);
        }
        .index-row:hover { background: color-mix(in srgb, var(--pine) 4%, white); }
        .index-row:hover .index-no { color: var(--copper); }
        .index-no { font-size: 1.2rem; color: var(--muted); font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif; font-weight: 600; }
        .cover-shadow { box-shadow: 0 25px 50px -20px rgba(23, 33, 30, 0.5); }
        .backdrop-dark {
            background: linear-gradient(to right, rgba(14,33,29,0.85) 0%, rgba(14,33,29,0.5) 70%, rgba(14,33,29,0.1) 100%);
        }
        .backdrop-dark-2 {
            background: linear-gradient(180deg, rgba(14,33,29,0.55) 0%, rgba(14,33,29,0.85) 100%);
        }
        .tag {
            display: inline-flex;
            align-items: center;
            font-size: 0.8rem;
            height: 26px;
            padding: 0 0.7rem;
            border: 1px solid var(--line);
            background: var(--paper);
            color: var(--pine);
            border-radius: 999px;
            letter-spacing: 0.02em;
            transition: border-color .2s, color .2s;
        }
        .tag:hover { color: var(--copper); border-color: color-mix(in srgb, var(--copper) 45%, var(--line)); }
        details.faq-item { border-bottom: 1px solid var(--line); }
        details.faq-item summary {
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 2rem;
            padding: 1.5rem 0;
            cursor: pointer;
            outline: none;
            font-weight: 500;
            color: var(--ink);
        }
        details.faq-item summary::-webkit-details-marker { display: none; }
        details.faq-item summary .faq-icon {
            width: 20px;
            height: 20px;
            position: relative;
            flex-shrink: 0;
            transition: transform 0.3s;
        }
        details.faq-item summary .faq-icon:before,
        details.faq-item summary .faq-icon:after {
            content: '';
            position: absolute;
            background: var(--copper);
            border-radius: 2px;
            inset: 9px auto auto auto;
            width: 16px;
            height: 2px;
            left: 2px;
        }
        details.faq-item summary .faq-icon:after { transform: rotate(90deg); transition: transform 0.3s; }
        details.faq-item[open] summary .faq-icon:after { transform: rotate(0deg); }
        details.faq-item[open] summary .faq-icon { transform: rotate(45deg); }
        details.faq-item .faq-content { padding: 0 0 1.5rem; color: var(--muted); line-height: 1.9; }
        .footer-nav-col a { color: rgba(255,255,255,0.7); transition: color .2s, padding-left .2s; }
        .footer-nav-col a:hover { color: #fff; padding-left: 3px; }
        .hover-line {
            position: relative;
            display: inline-block;
            color: var(--pine);
            font-weight: 600;
        }
        .hover-line:after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -3px;
            width: 100%;
            height: 1px;
            background: var(--copper);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s;
        }
        .index-row:hover .hover-line:after { transform: scaleX(1); }
        .hero-cat { background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; }
        .site-footer { background: var(--pine-deep); color: rgba(255,255,255,0.8); font-size: 0.92rem; }
        .footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 3rem; padding: 4rem 0 2.5rem; }
        .footer-brand .brand-word { color: #fff; }
        .footer-brand .brand-note, .footer-desc { color: rgba(255,255,255,0.65); }
        .footer-title { color: #fff; font-weight: 600; letter-spacing: 0.05em; margin-bottom: 1rem; font-size: 0.95rem; }
        .footer-nav-col { display: flex; flex-direction: column; gap: 0.75rem; }
        .footer-copy {
            border-top: 1px solid rgba(255,255,255,0.12);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            padding: 1.4rem 0;
            font-size: 0.78rem;
            color: rgba(255,255,255,0.45);
            gap: 0.5rem;
        }
        .site-header.is-scrolled {
            box-shadow: 0 10px 30px -30px rgba(0,0,0,0.3);
        }
        .step-card { border-left: 2px solid var(--copper); }
        .entry-card { border: 1px solid var(--line); background: var(--surface); border-radius: 12px; transition: all .25s; }
        .entry-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .split-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 16px;
            overflow: hidden;
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-sm);
        }
        input, select, textarea { outline: none; }
        input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible, summary:focus-visible {
            outline: 2px solid var(--copper);
            outline-offset: 2px;
        }
        @media (max-width: 992px) {
            .footer-top { grid-template-columns: 1fr 1fr; gap: 2rem; }
        }
        @media (max-width: 768px) {
            .masthead { min-height: 60px; }
            .brand-note { display: none; }
            .channel-nav { gap: 1.1rem; padding-right: .5rem; }
            .footer-top { grid-template-columns: 1fr; }
            .split-card { flex-direction: column; }
        }
        @media (prefers-reduced-motion: reduce) {
            *, *:before, *:after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
        }
        .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
        .reveal.show { opacity: 1; transform: translateY(0); }

/* roulang page: article */
:root {
            --paper: #F7F4EE;
            --surface: #FFFFFF;
            --ink: #18231F;
            --muted: #69746E;
            --line: #E6E1D6;
            --pine: #1B3A34;
            --pine-deep: #0E211D;
            --copper: #AE895F;
            --radius: 8px;
            --radius-sm: 4px;
            --shadow-sm: 0 1px 2px rgba(23, 33, 30, 0.05);
            --shadow-md: 0 18px 40px -30px rgba(23, 33, 30, 0.25);
            --fs-h1: clamp(2.5rem, 6vw, 4rem);
            --fs-h2: clamp(1.75rem, 3vw, 2.4rem);
            --fs-h3: 1.375rem;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--paper);
            color: var(--ink);
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease, opacity .2s ease;
        }

        a:focus-visible,
        button:focus-visible,
        summary:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--copper);
            outline-offset: 3px;
            border-radius: 2px;
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: 100%;
        }

        .container-x {
            width: 100%;
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: clamp(72px, 9vw, 120px) 0;
        }

        .section-head {
            max-width: 740px;
            margin-bottom: 44px;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            letter-spacing: .2em;
            text-transform: uppercase;
            color: var(--copper);
            font-weight: 600;
            margin-bottom: 14px;
        }

        .eyebrow-line {
            width: 32px;
            height: 1px;
            background: var(--copper);
            display: inline-block;
        }

        .title-serif {
            font-family: var(--font-serif);
            font-weight: 500;
            line-height: 1.1;
            letter-spacing: .01em;
        }

        .section-desc {
            color: var(--muted);
            font-size: 1rem;
            margin-top: 18px;
            line-height: 1.85;
        }

        /* ---------- Header ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: var(--paper);
            border-bottom: 1px solid var(--line);
            transition: box-shadow .3s ease;
        }

        .site-header.is-scrolled {
            box-shadow: 0 18px 40px -32px rgba(0, 0, 0, .25);
        }

        .masthead {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 20px;
            padding-top: 10px;
        }

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

        .brand-mark {
            width: 40px;
            height: 40px;
            color: var(--pine);
            flex: 0 0 auto;
        }

        .brand-type {
            display: inline-flex;
            flex-direction: column;
            line-height: 1.3;
            gap: 2px;
        }

        .brand-word {
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: .02em;
            color: var(--ink);
            font-family: var(--font-sans);
        }

        .brand-note {
            font-size: 11px;
            letter-spacing: .12em;
            color: var(--muted);
            font-weight: 500;
        }

        .brand-action {
            flex: 0 0 auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: .03em;
            border: 1px solid transparent;
            cursor: pointer;
            line-height: 1;
            background: transparent;
            transition: all .22s ease;
            white-space: nowrap;
        }

        .btn-pine {
            background: var(--pine);
            color: #fff;
            border-color: var(--pine);
        }

        .btn-pine:hover {
            background: var(--pine-deep);
            border-color: var(--pine-deep);
            transform: translateY(-1px);
        }

        .btn-ghost-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, .6);
        }

        .btn-ghost-light:hover {
            background: var(--pine);
            border-color: var(--pine);
            color: #fff;
        }

        .channel-nav {
            display: flex;
            gap: 4px;
            overflow-x: auto;
            padding: 2px 0 0;
            scrollbar-width: none;
            align-items: stretch;
        }

        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .channel-nav a {
            display: inline-flex;
            align-items: center;
            position: relative;
            padding: 12px 16px;
            font-size: 14px;
            white-space: nowrap;
            color: var(--muted);
            font-weight: 500;
            flex: 0 0 auto;
        }

        .channel-nav a::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 0;
            height: 2px;
            background: var(--copper);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform .3s ease;
        }

        .channel-nav a:hover {
            color: var(--pine-deep);
        }

        .channel-nav a:hover::after {
            transform: scaleX(1);
        }

        .channel-nav a.is-active {
            color: var(--pine);
            font-weight: 700;
        }

        .channel-nav a.is-active::after {
            transform: scaleX(1);
        }

        /* ---------- Category Hero ---------- */
        .category-banner {
            position: relative;
            background: var(--pine-deep) url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
            color: #fff;
            isolation: isolate;
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: center;
            padding: 96px 0 84px;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(90deg, rgba(14, 33, 29, .9) 0%, rgba(14, 33, 29, .64) 55%, rgba(14, 33, 29, .24) 100%);
        }

        .banner-content {
            max-width: 820px;
        }

        .banner-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, .86);
            font-size: 12px;
            letter-spacing: .22em;
            font-weight: 500;
            margin-bottom: 28px;
        }

        .banner-eyebrow::before {
            content: '';
            width: 34px;
            height: 1px;
            background: var(--copper);
            display: inline-block;
        }

        .category-banner h1 {
            font-family: var(--font-serif);
            font-size: var(--fs-h1);
            font-weight: 500;
            line-height: 1.08;
            letter-spacing: .01em;
        }

        .category-banner .banner-sub {
            max-width: 680px;
            margin-top: 24px;
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .78);
            font-weight: 400;
        }

        .banner-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 36px;
        }

        .badge-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            font-size: 12px;
            letter-spacing: .12em;
            color: rgba(255, 255, 255, .9);
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 30px;
        }

        .badge-chip::before {
            content: '';
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--copper);
            flex: 0 0 auto;
        }

        /* ---------- Access Directory Board ---------- */
        .directory-section {
            background: var(--paper);
        }

        .directory-board {
            border-bottom: 1px solid var(--line);
            margin-top: 6px;
        }

        .directory-row {
            display: grid;
            grid-template-columns: 90px 1fr 40% 120px;
            align-items: center;
            gap: 24px;
            padding: 28px 12px;
            border-top: 1px solid var(--line);
            position: relative;
            background: transparent;
            transition: background .3s ease, transform .2s ease;
        }

        .directory-row::after {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--copper);
            transform: scaleY(0);
            transition: transform .35s ease;
            transform-origin: center;
        }

        .directory-row:hover {
            background: #fff;
        }

        .directory-row:hover::after {
            transform: scaleY(1);
        }

        .directory-index {
            font-family: var(--font-serif);
            font-size: 1.6rem;
            font-weight: 500;
            color: var(--pine);
            transition: color .25s;
            line-height: 1;
        }

        .directory-row:hover .directory-index {
            color: var(--copper);
        }

        .directory-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--ink);
            font-family: var(--font-sans);
            display: block;
        }

        .directory-desc {
            font-size: .9375rem;
            color: var(--muted);
            line-height: 1.7;
        }

        .directory-link {
            justify-self: end;
            white-space: nowrap;
        }

        .text-link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--pine);
        }

        .text-link-arrow .arrow-icon {
            transition: transform .25s ease;
        }

        .text-link-arrow:hover .arrow-icon {
            transform: translateX(4px);
        }

        /* ---------- Focus Feature Split ---------- */
        .focus-section {
            background: #fff;
        }

        .focus-card {
            display: grid;
            grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: var(--surface);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .focus-media {
            min-height: 280px;
            background: #eef0ea;
            position: relative;
        }

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

        .focus-body {
            padding: 48px 48px 44px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 22px;
        }

        .focus-body h2 {
            font-family: var(--font-serif);
            font-weight: 500;
            font-size: clamp(1.75rem, 3vw, 2.2rem);
            line-height: 1.25;
            color: var(--ink);
        }

        .focus-body .focus-text {
            color: var(--muted);
            line-height: 1.95;
            font-size: 15px;
        }

        .text-btn-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .btn-outline {
            border-color: var(--ink);
            color: var(--ink);
            background: transparent;
        }

        .btn-outline:hover {
            background: var(--pine);
            border-color: var(--pine);
            color: #fff;
        }

        .btn-copper {
            background: var(--copper);
            border-color: var(--copper);
            color: #fff;
        }

        .btn-copper:hover {
            background: #92754d;
            border-color: #92754d;
            transform: translateY(-1px);
        }

        /* ---------- Service Mini Proof ---------- */
        .service-proof {
            background: var(--pine-deep);
            color: rgba(255, 255, 255, .88);
        }

        .proof-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            border-left: 1px solid rgba(255, 255, 255, .08);
            border-right: 1px solid rgba(255, 255, 255, .08);
        }

        .proof-cell {
            padding: 44px 28px;
            border-left: 1px solid rgba(255, 255, 255, .08);
            position: relative;
        }

        .proof-cell:first-child {
            border-left: none;
        }

        .proof-copper::before {
            content: '';
            display: block;
            width: 22px;
            height: 2px;
            background: var(--copper);
            margin-bottom: 18px;
        }

        .proof-name {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .03em;
            margin-bottom: 8px;
        }

        .proof-desc {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .6);
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--paper);
        }

        .faq-wrap {
            max-width: 920px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
            background: transparent;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--line);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            cursor: pointer;
            padding: 24px 4px 22px;
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            transition: color .2s ease;
        }

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

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

        .faq-icon {
            flex: 0 0 auto;
            width: 18px;
            height: 18px;
            position: relative;
            display: inline-block;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--pine);
            transition: transform .3s ease, background .3s ease;
        }

        .faq-icon::before {
            left: 4px;
            right: 4px;
            top: 8px;
            height: 2px;
        }

        .faq-icon::after {
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 2px;
        }

        .faq-item[open] .faq-icon::after {
            transform: rotate(90deg);
        }

        .faq-item[open] .faq-icon::before {
            background: var(--copper);
        }

        .faq-answer {
            padding: 0 42px 24px 4px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.9;
        }

        /* ---------- CTA band ---------- */
        .cta-band {
            background: var(--pine-deep) url('/assets/images/backpic/back-3.webp') no-repeat center / cover;
            position: relative;
            color: #fff;
            isolation: isolate;
            text-align: center;
            padding: 110px 0;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14, 33, 29, .82);
            z-index: -1;
        }

        .cta-title {
            font-family: var(--font-serif);
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 500;
            line-height: 1.25;
            max-width: 760px;
            margin: 0 auto 18px;
        }

        .cta-desc {
            color: rgba(255, 255, 255, .68);
            max-width: 620px;
            margin: 0 auto 36px;
            line-height: 1.85;
            font-size: 15px;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--pine-deep);
            color: rgba(255, 255, 255, .68);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 64px;
            padding: 72px 0 52px;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .52);
            line-height: 1.9;
            margin-top: 18px;
            max-width: 360px;
        }

        .footer-nav {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        .footer-title {
            color: #fff;
            font-size: 13px;
            letter-spacing: .16em;
            font-weight: 700;
            margin-bottom: 12px;
            padding-top: 6px;
        }

        .footer-nav-item {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            line-height: 2;
            width: fit-content;
            position: relative;
        }

        .footer-nav-item:hover {
            color: #fff;
        }

        .footer-nav-item::before {
            content: '';
            display: inline-block;
            width: 0;
            height: 1px;
            background: var(--copper);
            transition: width .28s ease;
            vertical-align: middle;
            margin-right: 0;
        }

        .footer-nav-item:hover::before {
            width: 10px;
            margin-right: 6px;
        }

        .footer-copy {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 22px 0 26px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 24px;
            justify-content: space-between;
            font-size: 12px;
            color: rgba(255, 255, 255, .4);
            letter-spacing: .03em;
        }

        /* ---------- Reveal / Progress ---------- */
        .reading-progress {
            position: fixed;
            left: 0;
            top: 0;
            height: 2px;
            width: 0;
            background: var(--copper);
            z-index: 100;
            pointer-events: none;
            opacity: .85;
        }

        .js .reveal {
            opacity: 0;
            transform: translateY(14px);
            transition: opacity .65s ease, transform .65s ease;
        }

        .js .reveal.reveal-in {
            opacity: 1;
            transform: none;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: .01ms !important;
                scroll-behavior: auto !important;
            }

            .js .reveal {
                opacity: 1;
                transform: none;
            }
        }

        /* ---------- Responsive ---------- */
        @media (max-width: 1100px) {
            .directory-row {
                grid-template-columns: 70px 1fr 110px;
                gap: 16px;
            }

            .directory-desc {
                grid-column: 2 / -1;
            }

            .proof-grid {
                grid-template-columns: 1fr 1fr;
                border-right: none;
            }

            .proof-cell:nth-child(2) {
                border-right: none;
            }
        }

        @media (max-width: 900px) {
            .masthead {
                flex-wrap: wrap;
            }

            .brand-action {
                margin-left: auto;
            }

            .channel-nav {
                gap: 0;
                flex-wrap: nowrap;
                padding-top: 0;
            }

            .channel-nav a {
                padding: 12px 12px;
            }

            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 720px) {
            .section-pad {
                padding: 72px 0;
            }

            .container-x {
                padding: 0 18px;
            }

            .brand-word {
                font-size: 1.14rem;
            }

            .brand-note {
                font-size: 10px;
            }

            .brand-mark {
                width: 34px;
                height: 34px;
            }

            .masthead {
                min-height: 60px;
                padding-top: 8px;
            }

            .brand-action .btn {
                height: 38px;
                padding: 0 16px;
                font-size: 13px;
            }

            .category-banner {
                min-height: 340px;
                padding: 80px 0 68px;
            }

            .category-banner h1 {
                font-size: clamp(2rem, 11vw, 3rem);
            }

            .category-banner .banner-sub {
                font-size: 14px;
            }

            .banner-badge-row {
                gap: 8px;
                margin-top: 24px;
            }

            .badge-chip {
                padding: 4px 10px;
                font-size: 11px;
            }

            .directory-row {
                grid-template-columns: 1fr auto;
                gap: 12px;
                padding: 22px 6px;
            }

            .directory-index {
                grid-row: 1;
            }

            .directory-title {
                grid-column: 1;
                grid-row: 2;
            }

            .directory-desc {
                grid-column: 1;
                font-size: 14px;
            }

            .directory-link {
                grid-row: 1 / span 3;
                grid-column: 2;
                align-self: center;
                justify-self: end;
            }

            .focus-card {
                grid-template-columns: 1fr;
            }

            .focus-media {
                min-height: 240px;
            }

            .focus-media img {
                position: relative;
                height: 240px;
            }

            .focus-body {
                padding: 36px 24px;
            }

            .text-btn-row {
                flex-direction: column;
                align-items: stretch;
            }

            .text-btn-row .btn {
                width: 100%;
            }

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

            .proof-cell {
                border-left: none;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
                padding: 32px 12px;
            }

            .proof-cell:nth-child(2) {
                border-right: none;
            }

            .proof-cell:last-child {
                border-bottom: none;
            }

            .faq-section {
                padding: 72px 0;
            }

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

            .footer-copy {
                flex-direction: column;
                gap: 6px;
            }
        }

        @media (max-width: 480px) {
            .brand-note {
                display: none;
            }

            .channel-nav a {
                font-size: 13px;
                padding: 10px 10px;
            }

            .channel-nav a::after {
                left: 10px;
                right: 10px;
            }

            .directory-row {
                grid-template-columns: 1fr;
                align-items: start;
            }

            .directory-link {
                grid-row: auto;
                grid-column: 1;
                justify-self: start;
            }
        }

/* roulang page: category2 */
:root {
            --paper: #F7F4EE;
            --surface: #FFFFFF;
            --ink: #18231F;
            --muted: #69746E;
            --line: #E6E1D6;
            --pine: #1B3A34;
            --pine-deep: #0E211D;
            --copper: #AE895F;
            --shadow-sm: 0 1px 2px rgba(23, 33, 30, .05);
            --shadow-md: 0 18px 40px -30px rgba(23, 33, 30, .25);
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 120px;
        }
        body {
            margin: 0;
            background: var(--paper);
            color: var(--ink);
            font-family: var(--font-sans);
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }
        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
            border-radius: 4px;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        a,
        button,
        summary,
        input {
            transition: all .25s ease;
        }
        h1,
        h2,
        h3,
        h4,
        p,
        figure {
            margin: 0;
        }
        ::selection {
            background: rgba(30, 60, 52, .2);
            color: var(--pine-deep);
        }
        .container-x {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: clamp(16px, 4vw, 40px);
            padding-right: clamp(16px, 4vw, 40px);
        }
        .btn {
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            display: -webkit-inline-box;
            display: -ms-inline-flexbox;
            display: inline-flex;
            gap: .55rem;
            min-height: 44px;
            padding: 0 1.25rem;
            border: 1px solid transparent;
            border-radius: 6px;
            font-size: .9375rem;
            font-weight: 600;
            letter-spacing: .03em;
            white-space: nowrap;
            background: transparent;
            cursor: pointer;
            -webkit-transition: all .25s ease;
            transition: all .25s ease;
        }
        .btn-pine {
            background: var(--pine);
            color: #fff;
            border-color: var(--pine);
        }
        .btn-pine:hover {
            background: var(--pine-deep);
            border-color: var(--pine-deep);
            box-shadow: var(--shadow-md);
            -webkit-transform: translateY(-1px);
            transform: translateY(-1px);
        }
        .btn-line {
            border-color: rgba(255, 255, 255, .5);
            color: #fff;
        }
        .btn-line:hover {
            background: var(--copper);
            border-color: var(--copper);
            color: #fff;
        }
        .btn-ghost {
            border-color: var(--ink);
            color: var(--ink);
            background: transparent;
        }
        .btn-ghost:hover {
            background: var(--pine);
            border-color: var(--pine);
            color: #fff;
        }
        .btn:focus-visible,
        a:focus-visible,
        summary:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--copper);
            outline-offset: 2px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(247, 244, 238, .96);
            border-bottom: 1px solid transparent;
            -webkit-transition: box-shadow .25s ease, border-color .25s ease, background .25s ease;
            transition: box-shadow .25s ease, border-color .25s ease, background .25s ease;
        }
        .site-header.is-stuck {
            border-color: var(--line);
            box-shadow: 0 18px 36px -42px rgba(14, 33, 29, .45);
        }
        .masthead {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-pack: justify;
            -ms-flex-pack: justify;
            justify-content: space-between;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            min-height: 68px;
            gap: 1rem;
        }
        .brand-lockup {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            gap: .6rem;
        }
        .brand-mark {
            display: block;
            width: 40px;
            height: 40px;
            color: var(--pine);
            -webkit-flex: 0 0 40px;
            -ms-flex: 0 0 40px;
            flex: 0 0 40px;
        }
        .brand-type {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-orient: vertical;
            -webkit-box-direction: normal;
            -ms-flex-direction: column;
            flex-direction: column;
            line-height: 1.2;
        }
        .brand-word {
            font-family: var(--font-serif);
            font-size: 1.375rem;
            font-weight: 600;
            letter-spacing: .05em;
            color: var(--ink);
            white-space: nowrap;
        }
        .brand-note {
            margin-top: 2px;
            font-size: .7rem;
            letter-spacing: .18em;
            color: var(--muted);
        }
        .brand-action {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            gap: .75rem;
        }
        .channel-nav {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            gap: clamp(18px, 3vw, 38px);
            min-height: 50px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }
        .channel-nav a {
            position: relative;
            padding: 14px 0 12px;
            font-size: .9375rem;
            font-weight: 500;
            color: var(--muted);
            white-space: nowrap;
            -webkit-transition: color .2s;
            transition: color .2s;
        }
        .channel-nav a::after {
            content: "";
            position: absolute;
            bottom: 6px;
            left: 0;
            width: 18px;
            height: 2px;
            background: transparent;
            -webkit-transition: width .25s ease, background-color .25s;
            transition: width .25s ease, background-color .25s;
        }
        .channel-nav a:hover {
            color: var(--pine);
        }
        .channel-nav a:hover::after {
            background: var(--copper);
            width: 36px;
        }
        .channel-nav a.is-active {
            color: var(--pine);
        }
        .channel-nav a.is-active::after {
            background: var(--copper);
            width: 100%;
        }
        .page-banner {
            position: relative;
            min-height: 320px;
            background-position: center;
            background-size: cover;
            background-repeat: no-repeat;
            background-color: var(--pine-deep);
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            padding: 72px 0 64px;
            overflow: hidden;
        }
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(14, 33, 29, .92) 0%, rgba(14, 33, 29, .76) 55%, rgba(14, 33, 29, .45) 100%);
        }
        .banner-inner {
            position: relative;
            z-index: 1;
            max-width: 860px;
            color: #fff;
        }
        .banner-kicker {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            gap: .75rem;
            font-size: .8rem;
            letter-spacing: .22em;
            color: rgba(255, 255, 255, .78);
            margin-bottom: 1.35rem;
        }
        .kicker-line {
            display: inline-block;
            width: 38px;
            height: 1px;
            background: var(--copper);
        }
        .banner-inner h1 {
            font-family: var(--font-serif);
            font-weight: 600;
            font-size: clamp(2.35rem, 5vw, 4.15rem);
            line-height: 1.18;
            letter-spacing: .01em;
            color: #fff;
        }
        .banner-lead {
            margin-top: 1.35rem;
            font-size: clamp(1rem, 1.35vw, 1.2rem);
            line-height: 1.85;
            color: rgba(255, 255, 255, .86);
            max-width: 720px;
        }
        .banner-meta {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-orient: vertical;
            -webkit-box-direction: normal;
            -ms-flex-direction: column;
            flex-direction: column;
            gap: .4rem;
            margin-top: 2rem;
            padding-top: 1.6rem;
            border-top: 1px solid rgba(255, 255, 255, .18);
            font-size: .9rem;
            color: rgba(255, 255, 255, .8);
            max-width: 640px;
        }
        .banner-meta span {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            gap: .6rem;
        }
        .banner-meta svg {
            width: 18px;
            height: 18px;
            stroke: var(--copper);
        }
        section {
            position: relative;
        }
        .scope-section {
            padding: 32px 0;
            border-bottom: 1px solid var(--line);
        }
        .scope-grid {
            display: -ms-grid;
            display: grid;
            -ms-grid-columns: 1fr 1fr 1fr 1fr;
            grid-template-columns: repeat(4, 1fr);
        }
        .scope-item {
            padding: 20px 24px 16px 0;
            min-height: 100%;
        }
        .scope-item+.scope-item {
            border-left: 1px solid var(--line);
            padding-left: 24px;
        }
        .scope-icon {
            width: 32px;
            height: 32px;
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            -webkit-box-pack: center;
            -ms-flex-pack: center;
            justify-content: center;
            color: var(--copper);
            margin-bottom: .65rem;
        }
        .scope-title {
            font-family: var(--font-serif);
            font-size: 1.12rem;
            font-weight: 600;
            color: var(--ink);
        }
        .scope-desc {
            margin-top: .3rem;
            font-size: .85rem;
            line-height: 1.75;
            color: var(--muted);
        }
        .scene-main {
            padding: clamp(36px, 6vw, 64px) 0 clamp(24px, 4vw, 48px);
        }
        .scene-heading {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-pack: justify;
            -ms-flex-pack: justify;
            justify-content: space-between;
            -webkit-box-align: end;
            -ms-flex-align: end;
            align-items: flex-end;
            gap: 30px;
            margin-bottom: 28px;
        }
        .eyebrow {
            font-size: .78rem;
            letter-spacing: .2em;
            color: var(--copper);
        }
        .h2-title {
            font-family: var(--font-serif);
            font-weight: 600;
            font-size: clamp(1.85rem, 3vw, 2.6rem);
            line-height: 1.25;
            color: var(--ink);
        }
        .h2-sub {
            color: var(--muted);
            font-size: .9375rem;
            margin-top: .5rem;
        }
        .scene-row {
            display: -ms-grid;
            display: grid;
            -ms-grid-columns: repeat(12, 1fr);
            grid-template-columns: repeat(12, 1fr);
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            gap: clamp(24px, 5vw, 72px);
            padding: clamp(40px, 6vw, 72px) 0;
            border-top: 1px solid var(--line);
        }
        .scene-copy {
            -ms-grid-column: 1;
            -ms-grid-column-span: 5;
            grid-column: 1 / 6;
        }
        .scene-media {
            -ms-grid-column: 7;
            -ms-grid-column-span: 6;
            grid-column: 7 / 13;
        }
        .scene-row.reversed .scene-copy {
            -ms-grid-column: 7;
            -ms-grid-column-span: 5;
            grid-column: 7 / 12;
            -ms-grid-row: 1;
            grid-row: 1;
        }
        .scene-row.reversed .scene-media {
            -ms-grid-column: 1;
            -ms-grid-column-span: 5;
            grid-column: 1 / 6;
            -ms-grid-row: 1;
            grid-row: 1;
        }
        .scene-number {
            font-family: var(--font-serif);
            color: var(--copper);
            font-size: .9rem;
            letter-spacing: .16em;
            display: block;
            margin-bottom: .7rem;
        }
        .scene-tag {
            display: inline-block;
            border: 1px solid var(--line);
            background: var(--surface);
            color: var(--pine);
            border-radius: 999px;
            font-size: .78rem;
            padding: .12rem .65rem;
            margin-bottom: .9rem;
        }
        .scene-copy h3 {
            font-family: var(--font-serif);
            font-size: clamp(1.55rem, 2.4vw, 2.15rem);
            font-weight: 600;
            line-height: 1.35;
            color: var(--ink);
            margin: .2rem 0 .8rem;
        }
        .scene-copy p {
            color: var(--muted);
            font-size: .9625rem;
            line-height: 1.9;
            max-width: 510px;
        }
        .scene-list {
            margin: 1.1rem 0 1.25rem;
            padding: 0;
            list-style: none;
            display: -ms-grid;
            display: grid;
            gap: .35rem;
        }
        .scene-list li {
            position: relative;
            padding-left: 1.1rem;
            font-size: .9rem;
            color: var(--ink);
            line-height: 1.75;
        }
        .scene-list li::before {
            content: "";
            position: absolute;
            left: 2px;
            top: .8em;
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--copper);
        }
        .text-link {
            display: -webkit-inline-box;
            display: -ms-inline-flexbox;
            display: inline-flex;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            gap: .4rem;
            font-size: .9rem;
            font-weight: 600;
            color: var(--pine);
            border-bottom: 1px solid transparent;
            padding-bottom: 1px;
        }
        .text-link:hover {
            border-bottom-color: var(--copper);
            color: var(--pine-deep);
        }
        .text-link svg {
            width: 16px;
            height: 16px;
            -webkit-transition: -webkit-transform .2s;
            transition: transform .2s;
        }
        .text-link:hover svg {
            -webkit-transform: translateX(3px);
            transform: translateX(3px);
        }
        .media-figure {
            position: relative;
            background: #e9e6dd;
            border-radius: 4px;
            overflow: hidden;
        }
        .media-figure::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 30%;
            background: linear-gradient(180deg, rgba(235, 231, 221, 0), rgba(14, 33, 29, .04));
            pointer-events: none;
        }
        .media-figure img {
            width: 100%;
            aspect-ratio: 6 / 4;
            background: #e9e6dd;
            -webkit-transition: -webkit-transform .5s ease;
            transition: transform .5s ease;
        }
        .scene-row:hover .media-figure img {
            -webkit-transform: scale(1.03);
            transform: scale(1.03);
        }
        .media-caption {
            position: absolute;
            left: 16px;
            bottom: 12px;
            background: rgba(14, 33, 29, .74);
            color: #fff;
            font-size: .72rem;
            padding: .16rem .65rem;
            border-radius: 999px;
            letter-spacing: .08em;
            z-index: 1;
            backdrop-filter: blur(4px);
        }
        .path-section {
            background: var(--pine-deep);
            color: #fff;
            padding: clamp(48px, 7vw, 92px) 0;
            margin-top: 18px;
        }
        .path-inner {
            display: -ms-grid;
            display: grid;
            -ms-grid-columns: repeat(4, minmax(0, 1fr));
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 20px;
            margin-top: 2.5rem;
        }
        .path-step {
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 8px;
            padding: 24px;
            min-height: 186px;
        }
        .path-step span {
            color: var(--copper);
            font-size: .8rem;
            letter-spacing: .2em;
        }
        .path-step h3 {
            margin: .7rem 0 .3rem;
            font-family: var(--font-serif);
            font-weight: 500;
            font-size: 1.15rem;
        }
        .path-step p {
            color: rgba(255, 255, 255, .7);
            font-size: .85rem;
            line-height: 1.8;
        }
        .faq-section {
            padding: clamp(56px, 8vw, 100px) 0;
            border-top: 1px solid var(--line);
        }
        .faq-wrap {
            max-width: 950px;
            margin: 0 auto;
            padding-left: clamp(16px, 4vw, 40px);
            padding-right: clamp(16px, 4vw, 40px);
        }
        .faq-list {
            margin-top: 2rem;
            border-top: 1px solid var(--line);
        }
        .faq-item {
            border-bottom: 1px solid var(--line);
            background: var(--surface);
            border-radius: 0;
            -webkit-transition: background .2s;
            transition: background .2s;
        }
        .faq-item[open] {
            background: #fbfaf6;
        }
        .faq-item summary {
            list-style: none;
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-pack: justify;
            -ms-flex-pack: justify;
            justify-content: space-between;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            gap: 18px;
            padding: 20px 8px 18px 0;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--ink);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-plus {
            width: 20px;
            height: 20px;
            -webkit-flex: 0 0 20px;
            -ms-flex: 0 0 20px;
            flex: 0 0 20px;
            color: var(--copper);
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            -webkit-box-pack: center;
            -ms-flex-pack: center;
            justify-content: center;
        }
        .faq-plus svg {
            width: 16px;
            height: 16px;
            stroke: currentColor;
            stroke-width: 1.6;
            -webkit-transition: -webkit-transform .3s ease;
            transition: transform .3s ease;
        }
        .faq-item[open] .faq-plus svg {
            -webkit-transform: rotate(45deg);
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 25px 22px 0;
            max-width: 800px;
            color: var(--muted);
            font-size: .9375rem;
            line-height: 1.9;
        }
        .faq-answer a {
            color: var(--pine);
            border-bottom: 1px solid transparent;
        }
        .faq-answer a:hover {
            border-bottom-color: var(--copper);
        }
        .contact-section {
            background: var(--pine-deep);
            color: rgba(255, 255, 255, .85);
            padding: clamp(48px, 7vw, 84px) 0;
        }
        .contact-grid {
            display: -ms-grid;
            display: grid;
            -ms-grid-columns: 7fr 5fr;
            grid-template-columns: 7fr 5fr;
            gap: 32px;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
        }
        .contact-title {
            font-family: var(--font-serif);
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            line-height: 1.28;
            color: #fff;
            font-weight: 600;
        }
        .contact-title::before {
            content: "";
            display: block;
            width: 40px;
            height: 1px;
            background: var(--copper);
            margin-bottom: 1rem;
        }
        .contact-desc {
            margin-top: .85rem;
            max-width: 480px;
            color: rgba(255, 255, 255, .72);
            font-size: .9375rem;
            line-height: 1.8;
        }
        .contact-actions {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -ms-flex-wrap: wrap;
            flex-wrap: wrap;
            gap: .75rem;
            margin-top: 1.75rem;
        }
        .contact-note {
            margin-top: 1.7rem;
            padding-top: 1.2rem;
            border-top: 1px solid rgba(255, 255, 255, .16);
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-pack: justify;
            -ms-flex-pack: justify;
            justify-content: space-between;
            gap: 1rem;
            font-size: .82rem;
            color: rgba(255, 255, 255, .55);
        }
        .site-footer {
            background: var(--pine-deep);
            color: rgba(255, 255, 255, .72);
            padding: 64px 0 28px;
        }
        .site-footer .container-x {
            background: transparent;
        }
        .footer-top {
            display: -ms-grid;
            display: grid;
            -ms-grid-columns: 2fr 1fr 1fr;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .12);
        }
        .footer-brand .brand-word {
            color: #fff;
            font-size: 1.35rem;
        }
        .footer-brand .brand-note {
            color: rgba(255, 255, 255, .58);
        }
        .footer-desc {
            margin-top: 1rem;
            max-width: 360px;
            font-size: .89rem;
            line-height: 1.9;
            color: rgba(255, 255, 255, .68);
        }
        .footer-title {
            font-size: .82rem;
            letter-spacing: .16em;
            color: rgba(255, 255, 255, .92);
            margin-bottom: .65rem;
        }
        .footer-nav {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-orient: vertical;
            -webkit-box-direction: normal;
            -ms-flex-direction: column;
            flex-direction: column;
            gap: .32rem;
        }
        .footer-nav-item {
            font-size: .89rem;
            color: rgba(255, 255, 255, .67);
            line-height: 1.7;
            -webkit-transition: color .2s, padding-left .2s;
            transition: color .2s, padding-left .2s;
        }
        .footer-nav-item:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-copy {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-pack: justify;
            -ms-flex-pack: justify;
            justify-content: space-between;
            -webkit-box-align: center;
            -ms-flex-align: center;
            align-items: center;
            gap: 12px;
            -ms-flex-wrap: wrap;
            flex-wrap: wrap;
            padding-top: 22px;
            font-size: .75rem;
            color: rgba(255, 255, 255, .45);
        }
        html.js [data-reveal] {
            opacity: 0;
            -webkit-transform: translateY(16px);
            transform: translateY(16px);
            -webkit-transition: opacity .6s ease, -webkit-transform .6s ease;
            transition: opacity .6s ease, transform .6s ease;
        }
        html.js [data-reveal].is-revealed {
            opacity: 1;
            -webkit-transform: translateY(0);
            transform: translateY(0);
        }
        @media (min-width: 1100px) {
            .scene-row.reversed .scene-copy {
                -ms-grid-column: 7;
                grid-column: 7 / 13;
                -ms-grid-row: 1;
                grid-row: 1;
            }
            .scene-row.reversed .scene-media {
                -ms-grid-column: 1;
                grid-column: 1 / 6;
                -ms-grid-row: 1;
                grid-row: 1;
            }
        }
        @media (max-width: 1024px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
            .footer-desc {
                max-width: none;
            }
            .scene-copy,
            .scene-row.reversed .scene-copy {
                grid-column: 1 / 13;
                -ms-grid-column: 1;
                -ms-grid-column-span: 12;
            }
            .scene-media,
            .scene-row.reversed .scene-media {
                grid-column: 1 / 13;
                -ms-grid-column: 1;
                -ms-grid-column-span: 12;
                grid-row: 2;
                -ms-grid-row: 2;
            }
            .scene-row.reversed .scene-copy {
                grid-row: 1;
                -ms-grid-row: 1;
            }
            .scope-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
                row-gap: 18px;
            }
            .scope-item+.scope-item {
                border-left: 0;
                padding-left: 0;
            }
            .scope-item:nth-child(even) {
                border-left: 1px solid var(--line);
                padding-left: 20px;
            }
            .path-inner {
                grid-template-columns: repeat(2, minmax(0, 1fr));
                gap: 14px;
            }
        }
        @media (max-width: 768px) {
            .masthead {
                min-height: 60px;
            }
            .brand-mark {
                width: 34px;
                height: 34px;
                -webkit-flex-basis: 34px;
                -ms-flex-preferred-size: 34px;
                flex-basis: 34px;
            }
            .brand-word {
                font-size: 1.18rem;
            }
            .brand-note {
                font-size: .66rem;
                letter-spacing: .1em;
            }
            .brand-action .btn {
                padding: 0 .9rem;
                font-size: .85rem;
                min-height: 38px;
            }
            .channel-nav a {
                font-size: .88rem;
            }
            .page-banner {
                min-height: 285px;
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .banner-inner h1 {
                font-size: clamp(2rem, 8vw, 2.7rem);
            }
            .banner-meta {
                margin-top: 1.2rem;
                padding-top: 1rem;
            }
            .scope-grid {
                grid-template-columns: 1fr;
            }
            .scope-item+.scope-item {
                border-left: none;
                padding-left: 0;
            }
            .scene-heading {
                -webkit-box-orient: vertical;
                -webkit-box-direction: normal;
                -ms-flex-direction: column;
                flex-direction: column;
                -webkit-box-align: start;
                -ms-flex-align: start;
                align-items: flex-start;
                gap: 8px;
            }
            .path-inner {
                grid-template-columns: 1fr;
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 32px;
            }
            .footer-copy {
                -webkit-box-orient: vertical;
                -webkit-box-direction: normal;
                -ms-flex-direction: column;
                flex-direction: column;
                -webkit-box-align: start;
                -ms-flex-align: start;
                align-items: flex-start;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                scroll-behavior: auto !important;
                -webkit-transition: none !important;
                transition: none !important;
                -webkit-animation: none !important;
                animation: none !important;
            }
            html.js [data-reveal] {
                opacity: 1;
                -webkit-transform: none;
                transform: none;
            }
        }

/* roulang page: category3 */
:root {
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --ink:#18231F;
  --muted:#69746E;
  --line:#E6E1D6;
  --pine:#1B3A34;
  --pine-deep:#0E211D;
  --copper:#AE895F;
  --shadow-sm:0 1px 2px rgba(23,33,30,.05);
  --shadow-md:0 18px 40px -30px rgba(23,33,30,.25);
  --radius:8px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  --font-sans:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  font-size:1rem;
  line-height:1.85;
  background:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}
main{flex:1 0 auto}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
.container-x{width:min(100% - 2rem,1200px);margin-inline:auto}
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -30px rgba(0,0,0,.35)}
.masthead{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:68px;
  gap:1rem;
}
.brand-lockup{display:inline-flex;align-items:center;gap:.7rem;color:inherit}
.brand-mark{width:40px;height:40px;color:var(--pine);flex:none}
.brand-mark rect{fill:rgba(27,58,52,.04)}
.brand-type{display:flex;flex-direction:column;gap:2px;line-height:1.2}
.brand-word{font-size:1.2rem;font-weight:600;letter-spacing:.03em;color:var(--ink)}
.brand-note{font-size:.72rem;letter-spacing:.15em;color:var(--muted);white-space:nowrap}
.brand-action{display:flex;align-items:center}
.channel-nav{
  display:flex;
  align-items:center;
  gap:2rem;
  overflow-x:auto;
  border-top:1px solid var(--line);
  scrollbar-width:none;
}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  position:relative;
  display:inline-block;
  white-space:nowrap;
  padding:15px 1px 11px;
  color:var(--muted);
  font-weight:500;
  font-size:.95rem;
  letter-spacing:.02em;
  transition:color .2s ease;
}
.channel-nav a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  width:100%;
  height:2px;
  background:var(--copper);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s ease;
}
.channel-nav a:hover{color:var(--ink)}
.channel-nav a:hover::after{transform:scaleX(.55)}
.channel-nav a.is-active{color:var(--pine)}
.channel-nav a.is-active::after{transform:scaleX(.36)}
.channel-nav a.is-active:hover::after{transform:scaleX(.38)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 1.35rem;
  border-radius:6px;
  border:1px solid transparent;
  font-weight:500;
  font-size:.96rem;
  line-height:1;
  cursor:pointer;
  transition:background .2s,border-color .2s,color .2s,box-shadow .2s,transform .2s;
  text-align:center;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--copper);outline-offset:3px}
.btn-pine{background:var(--pine);color:#fff}
.btn-pine:hover{background:#274d46;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-paper{background:var(--paper);color:var(--pine);border-color:var(--line)}
.btn-paper:hover{background:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-copper{background:var(--copper);color:#fff}
.btn-copper:hover{background:#96764f;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-ghost-dark{border-color:var(--ink);color:var(--pine)}
.btn-ghost-dark:hover{background:var(--pine);color:#fff;transform:translateY(-1px)}
.btn-ghost-light{border-color:rgba(255,255,255,.7);color:#fff;background:transparent}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px)}
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--pine-deep);
  color:#fff;
  padding:7rem 0 6rem;
}
.page-hero .hero-bg{
  position:absolute;
  inset:0;
  background-image:linear-gradient(93deg,rgba(14,33,29,.97) 4%,rgba(14,33,29,.82) 48%,rgba(14,33,29,.32) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}
.page-hero .hero-tone{
  position:absolute;
  left:0;
  bottom:0;
  width:min(68%,320px);
  height:2px;
  background:var(--copper);
  opacity:.7;
}
.hero-kicker{
  display:flex;
  align-items:center;
  gap:.8rem;
  font-size:.75rem;
  letter-spacing:.22em;
  color:rgba(255,255,255,.74);
  margin:0 0 1.5rem;
}
.hero-kicker::before{content:"";width:28px;height:1px;background:var(--copper)}
.hero-title{
  font-family:var(--font-serif);
  font-size:clamp(2.5rem,5.6vw,3.7rem);
  line-height:1.15;
  font-weight:600;
  margin:0;
  max-width:900px;
  letter-spacing:.01em;
}
.hero-title .h1-append{display:block;font-size:.78em;font-weight:500;margin-top:.4rem;color:rgba(255,255,255,.93)}
.hero-summary{margin:2rem 0 0;max-width:720px;color:rgba(255,255,255,.76);font-size:clamp(1rem,1.2vw,1.16rem);line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2.4rem}
.hero-note{margin-top:1.4rem;font-size:.78rem;color:rgba(255,255,255,.55);letter-spacing:.05em}
.page-section{padding:7rem 0;position:relative}
.section-wing{grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:4.5rem;align-items:center}
.section-eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-size:.75rem;letter-spacing:.2em;color:var(--copper);font-weight:500;margin-bottom:1.1rem;text-transform:none}
.section-eyebrow::before{content:"";width:26px;height:1px;background:var(--copper)}
.section-title{font-family:var(--font-serif);font-size:clamp(1.9rem,3vw,2.6rem);line-height:1.28;font-weight:600;margin:0 0 1.2rem;letter-spacing:.01em;color:var(--ink)}
.section-lead{margin:0;color:var(--muted);max-width:760px;line-height:1.9}
.section-big-head{max-width:340px}
.flow-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.8fr);gap:4rem;align-items:center}
.flow-list{border-top:1px solid var(--line)}
.flow-item{display:grid;grid-template-columns:5.2rem 1fr;column-gap:1.6rem;padding:1.45rem 1rem;border-bottom:1px solid var(--line);transition:background .2s ease,transform .2s ease}
.flow-item:hover{background:rgba(27,58,52,.035);transform:translateX(6px)}
.flow-no{color:var(--copper);font-family:var(--font-serif);font-size:1.35rem;font-weight:500;line-height:1.2}
.flow-main h3{margin:0 0 .3rem;font-size:1.28rem;font-weight:600;color:var(--ink);font-family:var(--font-serif)}
.flow-main p{margin:0;color:var(--muted);line-height:1.85;font-size:.95rem}
.fact-figure{margin:0}
.fact-shape{
  display:block;
  width:100%;
  border-radius:6px;
  overflow:hidden;
  margin:0;
  background:var(--line);
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.fact-shape img{width:100%;height:auto;object-fit:cover;min-height:280px;transition:transform .5s ease}
.fact-shape:hover img{transform:scale(1.02)}
.fact-caption{margin-top:.9rem;color:var(--muted);font-size:.8rem;letter-spacing:.04em}
.guarantee-block{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2.4rem;padding:4rem 0}
.gd-title{display:block;font-size:1.2rem;font-weight:600;color:var(--pine);margin-bottom:.6rem;font-family:var(--font-serif)}
.gd-text{margin:0;color:var(--muted);font-size:.95rem;line-height:1.9}
.guarantee-grid .gd-num{display:block;font-size:.8rem;color:rgba(174,137,95,.95);letter-spacing:.12em;margin-bottom:.8rem}
.risk-section{background:var(--pine-deep);color:rgba(255,255,255,.8)}
.risk-section .section-title{color:#fff}
.risk-section .section-lead{color:rgba(255,255,255,.68)}
.risk-row{display:grid;grid-template-columns:.9fr 1.4fr 1.7fr;gap:1.2rem;padding:1.25rem 1.1rem;border-bottom:1px solid rgba(255,255,255,.12);transition:background .2s ease}
.risk-row:first-of-type{border-top:1px solid rgba(255,255,255,.12)}
.risk-row:hover{background:rgba(255,255,255,.045)}
.risk-label{color:var(--copper);font-weight:600;font-size:1rem}
.risk-desc p{margin:0;font-size:.94rem;line-height:1.85}
.risk-solve p{margin:0;font-size:.94rem;line-height:1.85;color:rgba(255,255,255,.75)}
.risk-table-note{margin-top:1.24rem;font-size:.8rem;color:rgba(255,255,255,.5)}
.notice-bar{display:flex;gap:1.1rem;align-items:flex-start;border:1px solid rgba(174,137,95,.28);background:rgba(174,137,95,.1);padding:1.1rem 1.3rem;border-radius:8px;margin-top:2rem}
.notice-bar svg{flex:none;margin-top:.25rem}
.notice-text p{margin:0;font-size:.92rem;line-height:1.85;color:rgba(255,255,255,.8)}
.faq-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:4rem}
.faq-intro{position:sticky;top:120px;align-self:start}
.faq-list{border-top:1px solid var(--line)}
.faq{border-bottom:1px solid var(--line);padding:0}
.faq summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1.2rem;
  padding:1.15rem .5rem;
  font-size:1.05rem;
  font-weight:600;
  color:var(--ink);
  transition:color .2s;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--pine)}
.faq-icon{
  flex:none;
  width:22px;
  height:22px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--copper);
  transition:transform .24s ease;
}
details[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 .5rem 1.3rem;color:var(--muted);font-size:.95rem;line-height:1.9;max-width:720px}
.faq-tag{display:inline-flex;align-items:center;border:1px solid var(--line);background:var(--paper);border-radius:999px;padding:.2rem .7rem;font-size:.74rem;color:var(--pine);margin-right:.6rem;height:24px}
.cta-final{
  background:var(--pine);
  color:#fff;
  padding:5.5rem 0;
  position:relative;
  overflow:hidden;
}
.cta-final::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:2px;
  background:var(--copper);
}
.cta-final .section-title{color:#fff}
.cta-final p{color:rgba(255,255,255,.75)}
.site-footer{
  background:var(--pine-deep);
  color:rgba(255,255,255,.72);
}
.site-footer .brand-word{color:#fff}
.site-footer .brand-note{color:rgba(255,255,255,.55)}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,.75fr) minmax(0,.75fr);
  gap:3.6rem;
  padding:4.6rem 0 3rem;
}
.footer-desc{margin:1rem 0 0;max-width:42rem;color:rgba(255,255,255,.62);font-size:.92rem;line-height:1.9}
.footer-nav{display:flex;flex-direction:column;gap:.7rem;align-items:flex-start}
.footer-title{font-size:.84rem;letter-spacing:.14em;color:#fff;margin:0 0 .2rem;font-weight:600}
.footer-nav-item{font-size:.92rem;color:rgba(255,255,255,.65);transition:color .2s ease}
.footer-nav-item:hover{color:#fff}
.footer-copy{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:.8rem;
  border-top:1px solid rgba(255,255,255,.14);
  padding:1.6rem 0 1.9rem;
  font-size:.75rem;
  color:rgba(255,255,255,.55);
}
html.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
html.js .reveal.is-visible{opacity:1;transform:none}
@media (max-width:1100px){
  .container-x{width:min(100% - 2rem,960px)}
  .flow-grid{grid-template-columns:1fr;gap:3rem}
  .fact-shape img{min-height:220px;max-height:520px}
  .guarantee-grid{grid-template-columns:repeat(2,1fr);gap:2rem 2.4rem}
  .risk-row{grid-template-columns:1fr 1.2fr 1.4fr}
}
@media (max-width:960px){
  .channel-nav{gap:1.7rem}
  .channel-nav a{font-size:.9rem}
  .footer-top{grid-template-columns:1fr;gap:2.2rem}
  .faq-layout{grid-template-columns:1fr;gap:2rem}
  .faq-intro{position:static}
  .risk-row{grid-template-columns:1fr;gap:.55rem}
}
@media (max-width:768px){
  .container-x{width:min(100% - 1.25rem,720px)}
  .masthead{min-height:60px}
  .brand-word{font-size:1.04rem}
  .brand-note{display:none}
  .brand-mark{width:34px;height:34px}
  .brand-action .btn{padding:0 .9rem;min-height:38px;font-size:.86rem}
  .channel-nav a{padding:12px 1px 9px}
  .page-section{padding:4.2rem 0}
  .page-hero{padding:4.6rem 0}
  .hero-actions{flex-direction:column;align-items:flex-start}
  .hero-actions .btn{width:100%;justify-content:center}
  .guarantee-grid{grid-template-columns:1fr;gap:1.8rem;padding:3rem 0}
  .flow-item{grid-template-columns:3.4rem 1fr;padding:1.2rem 0;column-gap:1rem}
  .flow-main h3{font-size:1.16rem}
  .footer-copy{flex-direction:column;gap:.5rem}
}
@media (max-width:520px){
  .cta-final .btn{width:100%;justify-content:center}
  .hero-title{font-size:clamp(2.15rem,10vw,2.8rem)}
}