/* roulang page: index */
:root{
    --pine:#145544;
    --pine-deep:#0A352B;
    --mist:#E4EFEA;
    --copper:#C47A3E;
    --paper:#F6F2EA;
    --white:#ffffff;
    --ink:#1A2923;
    --muted:#63776F;
    --line:#DEE6E1;
    --radius-lg:16px;
    --radius-md:12px;
    --shadow-soft:0 10px 30px rgba(10,53,47,.08);
    --shadow-hover:0 18px 40px rgba(10,53,47,.12);
    --transition:.3s cubic-bezier(.2,.6,.25,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    font-family:system-ui,-apple-system,'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans CJK SC',sans-serif;
    background:var(--paper);
    color:var(--ink);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
    margin:0;
  }
  a{text-decoration:none;color:inherit;}
  img{max-width:100%;display:block;}
  button{font-family:inherit;}
  .container{max-width:1280px;margin:0 auto;padding-left:32px;padding-right:32px;width:100%;}
  .section{padding:96px 0;}
  .section-sm{padding:72px 0;}
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:10px;padding:14px 32px;font-weight:600;font-size:15px;line-height:1;cursor:pointer;transition:all var(--transition);border:1px solid transparent;white-space:nowrap;}
  .btn-primary{background:var(--pine);color:#fff;}
  .btn-primary:hover{background:var(--pine-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(10,53,47,.18);}
  .btn-copper{background:var(--copper);color:var(--pine-deep);}
  .btn-copper:hover{background:#d68d4e;transform:translateY(-2px);box-shadow:0 12px 26px rgba(196,122,62,.3);}
  .btn-outline{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
  .btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.06);transform:translateY(-2px);}
  .btn-outline-dark{border-color:rgba(20,85,68,.4);color:var(--pine);background:transparent;}
  .btn-outline-dark:hover{border-color:var(--pine);background:var(--mist);}
  .btn:focus-visible,.faq-row button:focus-visible,.nav-btn:focus-visible{
    outline:3px solid rgba(196,122,62,.45);
    outline-offset:2px;
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;letter-spacing:.08em;
    text-transform:uppercase;color:var(--pine);
  }
  .eyebrow::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--copper);}
  .section-title{
    font-size:clamp(28px,4vw,42px);
    line-height:1.25;
    font-weight:700;
    letter-spacing:-.01em;
    color:var(--ink);
    margin:16px 0 0;
  }
  .section-lead{
    font-size:16px;color:var(--muted);
    max-width:640px;margin:16px 0 0;line-height:1.8;
  }
  .hl{color:var(--pine);}
  .card-soft{
    background:var(--white);
    border:1px solid rgba(222,230,225,.7);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-soft);
    transition:transform var(--transition),box-shadow var(--transition);
  }
  .card-soft:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-hover);
  }
  .footer-link{color:rgba(244,246,240,.72);transition:color .2s;}
  .footer-link:hover{color:#fff;}
  .nav-link{
    font-size:15px;font-weight:500;color:#2c3d36;
    padding:10px 4px;position:relative;transition:color .2s;
  }
  .nav-link:hover{color:var(--pine);}
  .nav-link.active{color:var(--pine);}
  .nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:2px;
    height:2px;background:var(--pine);border-radius:2px;
  }
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(246,242,234,.88);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(222,230,225,.7);
  }
  .header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;}
  .brand-name{
    font-size:19px;font-weight:800;color:var(--pine);
    letter-spacing:.01em;line-height:1.3;white-space:nowrap;
  }
  .brand-sub{display:block;font-size:10px;font-weight:600;letter-spacing:.28em;color:var(--copper);line-height:1;}
  @media(max-width:640px){
    .brand-name{font-size:16px;}
    .brand-sub{font-size:9px;}
    .section{padding:64px 0;}
    .section-sm{padding:48px 0;}
    .container{padding-left:20px;padding-right:20px;}
  }
  .hero-wrap{
    position:relative;
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;
    background-position:center;
    min-height:680px;
    display:flex;align-items:center;
    isolation:isolate;overflow:hidden;
  }
  .hero-wrap::before{
    content:"";position:absolute;inset:0;z-index:-1;
    background:linear-gradient(92deg,rgba(6,42,34,.92) 0%,rgba(8,56,45,.78) 45%,rgba(8,56,45,.24) 100%);
  }
  .hero-inner{padding:110px 0 90px;color:#fff;width:100%;}
  .hero-title{
    font-size:clamp(36px,5.4vw,62px);
    line-height:1.16;
    font-weight:800;
    max-width:780px;
    letter-spacing:-.015em;
  }
  .hero-sub{
    max-width:600px;margin-top:20px;
    font-size:17px;line-height:1.9;color:rgba(240,247,242,.85);
  }
  .hero-meta{
    margin-top:46px;display:flex;flex-wrap:wrap;gap:14px;
  }
  .hero-chip{
    display:inline-flex;align-items:center;gap:6px;margin-top:26px;
    font-size:14px;color:rgba(240,247,242,.8);
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.14);
    border-radius:40px;padding:8px 16px;
  }
  .hero-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--copper);}
  .img-deco{
    border-radius:var(--radius-lg);
    border:1px solid rgba(222,230,225,.8);
    box-shadow:0 18px 44px rgba(10,53,47,.1);
  }
  .news-feature-card{
    display:block;border-radius:var(--radius-lg);overflow:hidden;
    background:#fff;border:1px solid rgba(222,230,225,.7);
    box-shadow:var(--shadow-soft);transition:all var(--transition);
  }
  .news-feature-card:hover{
    transform:translateY(-4px);box-shadow:var(--shadow-hover);
  }
  .news-feature-card .thumb{overflow:hidden;}
  .news-feature-card .thumb img{transition:transform .6s ease;width:100%;height:100%;object-fit:cover;}
  .news-feature-card:hover .thumb img{transform:scale(1.04);}
  .list-row{
    display:flex;align-items:flex-start;gap:16px;
    padding:18px 0;border-bottom:1px solid var(--line);
    transition:background .2s;
  }
  .list-row:last-child{border-bottom:none;}
  .list-row:hover .title{color:var(--pine);}
  .list-row .date{
    flex:0 0 auto;font-size:13px;color:var(--muted);
    background:var(--mist);padding:4px 10px;border-radius:6px;
    margin-top:2px;
  }
  .text-need-2lines{
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .text-need-3lines{
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  }
  .badge-category{
    display:inline-block;font-size:12px;font-weight:600;
    padding:4px 12px;border-radius:20px;
    background:var(--mist);color:var(--pine);
  }
  .member-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;}
  .member-table{
    width:100%;border-collapse:separate;border-spacing:0;
    min-width:680px;background:#fff;border-radius:var(--radius-lg);overflow:hidden;
  }
  .member-table th{
    background:#DFEAE5;color:var(--ink);font-size:15px;
    padding:20px 22px;text-align:left;font-weight:600;
  }
  .member-table td{
    padding:17px 22px;border-bottom:1px solid var(--line);font-size:14px;
  }
  .member-table tr:last-child td{border-bottom:none;}
  .member-table .reco-col{
    background:#FFF8EF;
    box-shadow:inset 0 2px 0 var(--copper), inset 0 -1px 0 rgba(196,122,62,.16);
    border-bottom:1px solid rgba(196,122,62,.14);
  }
  .level-item{
    display:grid;grid-template-columns:64px 1fr;
    gap:22px;padding:26px 0;border-bottom:1px dashed var(--line);
  }
  .level-item:last-child{border-bottom:none;}
  .level-no{color:var(--copper);font-size:24px;font-weight:800;letter-spacing:-.02em;}
  .faq-row{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    margin-bottom:12px;overflow:hidden;transition:border-color .2s;
  }
  .faq-row button{
    width:100%;display:flex;justify-content:space-between;align-items:center;
    gap:24px;padding:20px 22px;background:none;border:none;cursor:pointer;
    text-align:left;font-size:15px;font-weight:600;color:var(--ink);
  }
  .faq-row button .faq-icon{
    position:relative;flex:0 0 28px;height:28px;border-radius:50%;
    background:var(--mist);transition:background .2s;
  }
  .faq-row button .faq-icon::before,
  .faq-row button .faq-icon::after{
    content:"";position:absolute;background:var(--pine);
    border-radius:2px;transition:transform .3s;
  }
  .faq-row button .faq-icon::before{width:12px;height:2px;left:8px;top:13px;}
  .faq-row button .faq-icon::after{width:2px;height:12px;left:13px;top:8px;}
  .faq-row.open button .faq-icon::after{transform:scaleY(0);}
  .faq-answer{display:none;padding:0 22px 22px;color:var(--muted);font-size:14px;line-height:1.9;}
  .faq-row.open .faq-answer{display:block;}
  .empty-state{
    border:2px dashed #C9D6D0;
    border-radius:var(--radius-lg);
    padding:60px 20px;
    text-align:center;
    color:var(--muted);
    font-size:15px;
  }
  .lock-mask{
    position:relative;overflow:hidden;border-radius:14px;
  }
  .lock-mask::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(to top,rgba(6,42,34,.92) 0%,rgba(6,42,34,.2) 100%);
    z-index:1;
  }
  .lock-item{
    position:absolute;left:50%;bottom:14px;transform:translateX(-50%);
    z-index:2;color:#fff;font-size:13px;
    background:rgba(10,53,47,.55);
    border:1px solid rgba(255,255,255,.28);
    padding:6px 16px;border-radius:30px;
    backdrop-filter:blur(4px);
    white-space:nowrap;
  }
  .footer-cta{
    background:#0A352B;
    color:#fff;
  }
  .footer-cta::before{
    content:"";position:absolute;right:0;bottom:0;width:340px;height:340px;
    background:radial-gradient(circle,rgba(255,255,255,.055) 0%,transparent 70%);pointer-events:none;
  }
  .nav-panel{
    display:none;
  }
  @media(max-width:920px){
    .nav-menu{display:none;}
    .nav-panel{
      display:block;
      position:absolute;left:0;right:0;top:76px;
      padding:14px 20px;background:#fff;
      border-bottom:1px solid var(--line);
      box-shadow:0 16px 30px rgba(10,53,47,.06);
      z-index:60;
    }
    .nav-panel a{
      display:block;padding:13px 10px;font-size:15px;
      border-bottom:1px solid rgba(222,230,225,.6);
      color:var(--ink);
    }
    .nav-panel a:last-child{border-bottom:none;}
    .nav-panel a:active{background:var(--mist);}
    .nav-toggle-btn{
      display:flex;align-items:center;justify-content:center;
      width:40px;height:40px;border-radius:8px;
      background:none;border:1px solid transparent;color:var(--pine);
    }
    .nav-toggle-btn:hover{background:var(--mist);}
  }
  @media(max-width:768px){
    .hero-wrap{min-height:560px;}
    .hero-title{font-size:34px;}
    .hero-sub{font-size:15px;}
  }
  @media(max-width:520px){
    .hero-wrap{min-height:520px;}
    .hero-inner{padding:84px 0 60px;}
    .btn{width:100%;justify-content:center;}
    .hero-meta{flex-direction:column;align-items:stretch;}
    .level-item{grid-template-columns:44px 1fr;gap:14px;}
    .list-row{flex-direction:column;gap:8px;}
    .list-row .date{margin-left:0;}
  }

/* roulang page: article */
:root {
            --primary: #145544;
            --primary-dark: #0A352B;
            --primary-soft: #E4EFEA;
            --copper: #C47A3E;
            --paper: #F6F2EA;
            --card: #FFFFFF;
            --text: #1A2923;
            --muted: #63776F;
            --border: #DEE6E1;
            --deep-text: #F2F5F2;
            --deep-line: rgba(255, 255, 255, 0.14);
            --radius-lg: 16px;
            --radius-md: 12px;
            --shadow-card: 0 14px 34px rgba(10, 53, 47, 0.08);
            --shadow-lift: 0 20px 40px rgba(10, 53, 47, 0.12);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background-color: var(--paper);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        .brand-name {
            font-size: 19px;
            font-weight: 800;
            letter-spacing: 0.01em;
            color: var(--primary-dark);
            white-space: nowrap;
        }

        .nav-link {
            position: relative;
            display: inline-block;
            padding: 8px 2px 10px;
            color: #3A5047;
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: color 0.22s ease;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 2px;
            width: 0;
            height: 2px;
            border-radius: 99px;
            background-color: var(--primary);
            transition: width 0.22s ease;
        }

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

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            width: 100%;
        }

        .mobile-link {
            display: block;
            padding: 14px 4px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            border-bottom: 1px solid #EDF0EE;
            transition: color 0.2s;
        }

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

        .btn-primary,
        .btn-copper,
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.2;
            border: 1px solid transparent;
            cursor: pointer;
            min-height: 46px;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 10px 24px rgba(20, 85, 68, 0.18);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(20, 85, 68, 0.22);
        }

        .btn-primary:focus-visible,
        .btn-copper:focus-visible,
        .btn-outline:focus-visible {
            outline: 3px solid rgba(20, 85, 68, 0.35);
            outline-offset: 2px;
        }

        .btn-copper {
            background-color: var(--copper);
            color: #1A2923;
            box-shadow: 0 10px 22px rgba(196, 122, 62, 0.24);
        }

        .btn-copper:hover {
            background-color: #D99243;
            color: #0A352B;
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(196, 122, 62, 0.28);
        }

        .btn-outline {
            border-color: rgba(20, 85, 68, 0.4);
            color: var(--primary);
            background: transparent;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background-color: var(--primary-soft);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .breadcrumb-line {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 9px;
            font-size: 14px;
            color: var(--muted);
        }

        .breadcrumb-line a {
            transition: color 0.2s;
        }

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

        .breadcrumb-line .sep {
            opacity: 0.45;
            font-size: 13px;
        }

        .category-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            background-color: var(--primary-soft);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            line-height: 1.2;
        }

        .article-shell {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: 16px;
            box-shadow: var(--shadow-card);
            padding: 44px 52px;
        }

        @media (max-width: 640px) {
            .article-shell {
                padding: 28px 22px;
                border-radius: 14px;
            }
        }

        .article-body {
            font-size: 16.5px;
            line-height: 1.95;
            color: #1F2E27;
            word-wrap: break-word;
            overflow-wrap: break-word;
        }

        .article-body p {
            margin-bottom: 1.5rem;
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 750;
            color: var(--primary-dark);
            margin: 2.6rem 0 1.1rem;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-soft);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin: 2rem 0 0.85rem;
            line-height: 1.5;
        }

        .article-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin: 1.6rem 0 0.6rem;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 1.6rem 1.4rem;
            padding-left: 0.25rem;
        }

        .article-body ul {
            list-style: disc;
        }

        .article-body ul li::marker {
            color: var(--copper);
        }

        .article-body ol {
            list-style: decimal;
        }

        .article-body ol li::marker {
            color: var(--copper);
            font-weight: 600;
        }

        .article-body li {
            margin: 0.4rem 0;
            padding-left: 0.2rem;
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1px;
        }

        .article-body a:hover {
            color: var(--primary-dark);
        }

        .article-body blockquote {
            border-left: 3px solid var(--copper);
            background: var(--primary-soft);
            color: #35604F;
            padding: 1.15rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
            line-height: 1.85;
        }

        .article-body blockquote p {
            margin-bottom: 0;
        }

        .article-body img {
            width: auto;
            max-width: 100%;
            margin: 2rem auto 1rem;
            border-radius: 14px;
            box-shadow: 0 12px 28px rgba(10, 53, 47, 0.1);
        }

        .article-body figcaption {
            font-size: 0.83rem;
            color: var(--muted);
            text-align: center;
            margin-bottom: 1.2rem;
            margin-top: 0.4rem;
        }

        .article-body table {
            display: block;
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            overflow-x: auto;
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--border);
            padding: 12px 16px;
            text-align: left;
        }

        .article-body th {
            background-color: var(--primary-soft);
            font-weight: 600;
            color: var(--primary-dark);
        }

        .article-body hr {
            border: 0;
            border-top: 1px solid var(--border);
            margin: 2.5rem 0;
        }

        .article-empty-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 14px;
            padding: 64px 28px;
            border: 1.5px dashed #C6D4CC;
            border-radius: 16px;
            background: #FBFAF6;
            color: var(--muted);
            text-align: center;
        }

        .footer-link a {
            color: rgba(242, 245, 242, 0.72);
            transition: color 0.2s;
        }

        .footer-link a:hover {
            color: #FFFFFF;
        }

        .related-card {
            border: 1px solid var(--border);
            background-color: var(--card);
            border-radius: 16px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .related-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lift);
            border-color: #C6D8D0;
        }

        .related-card .img-wrap {
            overflow: hidden;
        }

        .related-card .img-wrap img {
            width: 100%;
            height: 210px;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .related-card:hover .img-wrap img {
            transform: scale(1.04);
        }

        .bottom-meta-line {
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .copper-rule {
            display: inline-block;
            width: 58px;
            height: 3px;
            border-radius: 4px;
            background: var(--copper);
        }

        @media (max-width: 640px) {
            .brand-name {
                font-size: 16px;
            }

            .article-body {
                font-size: 16px;
            }

            .article-body h2 {
                font-size: 22px;
            }

            .article-body h3 {
                font-size: 19px;
            }
        }

/* roulang page: category2 */
:root {
    --pine: #145544;
    --deeppine: #0A352B;
    --mist: #E4EFEA;
    --copper: #C47A3E;
    --paper: #F6F2EA;
    --ink: #1A2923;
    --muted: #63776F;
    --line: #DEE6E1;
    --white: #FFFFFF;
  }
  
  html { scroll-behavior: smooth; }
  
  body {
    font-family: system-ui, -apple-system, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
    color: var(--ink);
    background-color: var(--paper);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  
  *, *::before, *::after { box-sizing: border-box; }
  
  body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
  
  img { max-width: 100%; display: block; }
  
  a { text-decoration: none; color: inherit; transition: color .25s ease, border-color .25s ease, background-color .25s ease; }
  
  button { cursor: pointer; font-family: inherit; }
  
  .container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
  }
  
  @media (min-width: 640px) {
    .container { padding-left: 32px; padding-right: 32px; }
  }
  
  @media (min-width: 768px) {
    .container { padding-left: 40px; padding-right: 40px; }
  }
  
  /* ===== TOP BAR ===== */
  .top-bar {
    background: #ECE5D9;
    border-bottom: 1px solid rgba(10, 53, 43, .08);
    font-size: 13px;
    color: #4F6159;
  }
  
  /* ===== HEADER ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background-color: rgba(246, 242, 234, .86);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(222, 230, 225, .9);
    height: 76px;
  }
  
  .logo-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  
  .logo-dot {
    width: 8px;
    height: 8px;
    background: var(--copper);
    border-radius: 50%;
    flex-shrink: 0;
  }
  
  .site-logo-text {
    font-size: 19px;
    font-weight: 700;
    letter-spacing: .02em;
    color: var(--pine);
    white-space: nowrap;
  }
  
  .nav-link {
    position: relative;
    font-size: 15px;
    font-weight: 500;
    color: #34473F;
    padding: 6px 2px;
    letter-spacing: .02em;
    transition: color .25s ease;
  }
  
  .nav-link:hover {
    color: var(--pine);
  }
  
  .nav-link.active {
    color: var(--pine);
    font-weight: 600;
  }
  
  .nav-link.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    background: var(--pine);
    border-radius: 2px;
  }
  
  .nav-link.active::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--copper);
  }
  
  /* Mobile Nav */
  .mobile-drawer {
    display: none;
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: #FDFCF9;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 36px rgba(8, 48, 39, .08);
    border-radius: 0 0 18px 18px;
    padding: 20px 0;
    z-index: 49;
  }
  
  .mobile-drawer.open { display: block; }
  
  .mobile-drawer a {
    display: block;
    padding: 14px 24px;
    font-size: 16px;
    color: #283C34;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: all .2s ease;
  }
  
  .mobile-drawer a:hover {
    background: #F1EEE7;
    border-left-color: var(--pine);
    color: var(--pine);
  }
  
  .mobile-drawer a.m-active {
    border-left-color: var(--copper);
    color: var(--pine);
    background: #F9F7F2;
    font-weight: 600;
  }
  
  /* ===== PAGE BANNER ===== */
  .page-banner {
    background:
      linear-gradient(112deg, rgba(7, 48, 38, .72), rgba(13, 83, 68, .38)),
      url('/assets/images/backpic/back-2.webp') no-repeat center center / cover;
    padding: 86px 0 80px;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  
  /* ===== GENERAL SECTIONS ===== */
  .section-gap { padding: 100px 0; }
  
  @media (max-width: 768px) {
    .section-gap { padding: 68px 0; }
  }
  
  .section-side-gap { padding: 86px 0; }
  
  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--copper);
    letter-spacing: .08em;
    text-transform: none;
  }
  
  .eyebrow::before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 1px;
    background: var(--copper);
  }
  
  .light-eyebrow::before { background: rgba(255,255,255,.6); }
  .light-eyebrow { color: #E0C4A6; }
  
  .section-title {
    font-size: clamp(26px, 3.4vw, 40px);
    line-height: 1.25;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: .01em;
  }
  
  .section-lead {
    font-size: 16px;
    line-height: 1.9;
    color: var(--muted);
  }
  
  /* ===== BUTTONS ===== */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: var(--pine);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    padding: 13px 30px;
    border-radius: 12px;
    border: 1px solid transparent;
    transition: all .3s ease;
    box-shadow: 0 6px 18px rgba(21, 92, 55, .15);
  }
  
  .btn-primary:hover {
    background-color: var(--deeppine);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(21, 92, 55, .2);
  }
  
  .btn-white {
    background-color: #fff;
    color: var(--pine);
    border: 1px solid transparent;
  }
  
  .btn-white:hover { background-color: #F3F7F4; color: var(--deeppine); }
  
  .btn-copper {
    background-color: var(--copper);
    color: var(--deeppine);
    box-shadow: 0 8px 22px rgba(196, 122, 62, .22);
  }
  
  .btn-copper:hover {
    background-color: #D49456;
    color: var(--deeppine);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(196, 122, 62, .3);
  }
  
  .btn-outline-light {
    background: transparent;
    color: rgba(255,255,255,.92);
    border: 1px solid rgba(255,255,255,.45);
    font-size: 15px;
    font-weight: 500;
    padding: 12px 28px;
    border-radius: 12px;
    transition: all .3s ease;
  }
  
  .btn-outline-light:hover {
    background: rgba(255,255,255,.09);
    border-color: rgba(255,255,255,.8);
    color: #fff;
  }
  
  .btn-outline-dark {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(20, 85, 68, .35);
    color: var(--pine);
    font-size: 15px;
    font-weight: 500;
    padding: 12px 28px;
    border-radius: 12px;
    background: transparent;
    transition: all .3s ease;
  }
  
  .btn-outline-dark:hover {
    border-color: var(--pine);
    background: rgba(20, 85, 68, .06);
  }
  
  /* ===== CARDS ===== */
  .content-card {
    background: #fff;
    border: 1px solid rgba(222, 230, 225, .82);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(10, 53, 47, .06);
    overflow: hidden;
    transition: box-shadow .35s ease, transform .35s ease;
  }
  
  .content-card:hover {
    box-shadow: 0 18px 44px rgba(10, 53, 47, .11);
    transform: translateY(-4px);
  }
  
  .white-card {
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--line);
    box-shadow: 0 8px 28px rgba(10, 53, 47, .04);
    transition: transform .3s ease, box-shadow .3s ease;
  }
  
  .point-card { padding: 40px 36px; border-top: 3px solid transparent; }
  
  .point-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 44px rgba(10, 53, 47, .09);
    border-top-color: var(--copper);
  }
  
  .icon-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    flex-shrink: 0;
    background: var(--mist);
    color: var(--pine);
  }
  
  .icon-lg { width: 62px; height: 62px; border-radius: 16px; font-size: 20px; }
  
  /* ===== TAGS ===== */
  .chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(228, 239, 234, .7);
    color: #2E5D4F;
    border: 1px solid rgba(20, 85, 68, .08);
  }
  
  .chip-copper {
    background: rgba(196, 122, 62, .12);
    color: #9A5924;
    border-color: rgba(196, 122, 62, .12);
  }
  
  .chip-dark {
    background: rgba(255,255,255,.1);
    color: rgba(255,255,255,.85);
    border-color: rgba(255,255,255,.14);
  }
  
  /* ===== LIST STYLES ===== */
  .feature-list li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 9px 0;
    font-size: 15px;
  }
  
  .feature-list li i {
    margin-top: 5px;
    font-size: 13px;
  }
  
  .step-line {
    position: relative;
    padding-left: 30px;
  }
  
  .step-line::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 8px;
    bottom: -8px;
    width: 1px;
    background: var(--line);
  }
  
  /* ===== FAQ ===== */
  .faq-list { max-width: 820px; margin: 0 auto; }
  
  .faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: box-shadow .25s ease;
  }
  
  .faq-item:hover { box-shadow: 0 6px 20px rgba(10, 53, 47, .06); }
  
  .faq-toggle {
    width: 100%;
    background: transparent;
    border: none;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 14px;
    transition: background .2s ease;
  }
  
  .faq-toggle:focus-visible {
    outline: 2px solid var(--pine);
    outline-offset: -2px;
  }
  
  .faq-icon {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--mist);
    color: var(--pine);
    transition: all .3s ease;
  }
  
  .faq-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height .45s ease;
  }
  
  .faq-body-inner {
    padding: 0 24px 22px;
    font-size: 15px;
    line-height: 1.85;
    color: var(--muted);
  }
  
  .faq-item.active .faq-icon { transform: rotate(180deg); background: var(--pine); color: #fff; }
  
  /* ===== FOOTER ===== */
  .footer-link a {
    color: rgba(242, 245, 242, .62);
    transition: color .25s ease;
  }
  
  .footer-link a:hover { color: #fff; text-decoration: none; }
  
  @media (min-width: 768px) {
    .md\:hide { display: none !important; }
  }
  
  @media (max-width: 767px) {
    .mobile-only { display: flex; }
  }
  
  @media (min-width: 768px) {
    .mobile-only { display: none; }
  }
  
  ::-webkit-scrollbar { width: 10px; }
  ::-webkit-scrollbar-track { background: #F1EEE8; }
  ::-webkit-scrollbar-thumb { background: #B9CBC2; border-radius: 10px; }
  ::-webkit-scrollbar-thumb:hover { background: #8DA898; }
  
  ::selection { background: rgba(20, 85, 68, .2); }
  
  :focus-visible { outline: 2px solid var(--copper); outline-offset: 3px; border-radius: 4px; }
  
  .horizon-line { border: none; border-top: 1px solid var(--line); margin: 0; }
  
  .metric-item {
    padding: 24px 0;
    border-bottom: 1px solid rgba(222, 230, 225, .7);
  }

/* roulang page: category1 */
:root {
            --pine: #145544;
            --pine-deep: #0A352B;
            --mist: #E4EFEA;
            --copper: #C47A3E;
            --paper: #F6F2EA;
            --card: #FFFFFF;
            --ink: #1A2923;
            --muted: #63776F;
            --line: #DEE6E1;
            --dark-text: #F2F5F2;
            --dark-line: rgba(255, 255, 255, 0.14);
            --radius: 16px;
            --radius-sm: 12px;
            --shadow: 0 10px 30px rgba(10, 53, 47, 0.08);
            --space-section: 96px;
            --space-mobile: 64px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 96px;
        }

        body {
            margin: 0;
            background: var(--paper);
            color: var(--ink);
            font-family: system-ui, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        summary {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            height: 76px;
            background: rgba(246, 242, 234, 0.82);
            border-bottom: 1px solid transparent;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
        }

        .site-header.scrolled {
            background: rgba(250, 248, 244, 0.94);
            border-bottom-color: rgba(222, 230, 225, 0.9);
            box-shadow: 0 6px 24px rgba(10, 53, 47, 0.04);
        }

        .brand-logo {
            display: inline-flex;
            align-items: baseline;
            gap: 8px;
            color: var(--pine);
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

        .brand-logo small {
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.12em;
            color: var(--copper);
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 2px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.2;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

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

        .nav-link.active {
            color: var(--pine);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            border-radius: 99px;
            background: var(--pine);
        }

        .mobile-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            color: var(--pine);
            cursor: pointer;
            border: 1px solid var(--line);
            background: #fff;
            transition: border-color 0.2s ease, background 0.2s ease;
        }

        .mobile-toggle:hover {
            border-color: var(--pine);
            background: var(--mist);
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: calc(76px + 12px);
            left: 20px;
            right: 20px;
            z-index: 60;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 20px;
            padding: 16px;
            box-shadow: 0 20px 50px rgba(10, 53, 47, 0.12);
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-link {
            display: block;
            padding: 13px 14px;
            border-radius: 12px;
            color: var(--ink);
            font-size: 16px;
            font-weight: 500;
            transition: background 0.18s ease, color 0.18s ease;
        }

        .mobile-link:hover {
            background: var(--mist);
            color: var(--pine);
        }

        .mobile-link.active {
            background: var(--mist);
            color: var(--pine);
            font-weight: 600;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 600;
            line-height: 1.2;
            cursor: pointer;
            border: 1px solid transparent;
            transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
            outline: none;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(196, 122, 62, 0.7);
            outline-offset: 3px;
        }

        .btn-primary {
            background: var(--pine);
            color: #fff;
            padding: 13px 26px;
            font-size: 15px;
        }

        .btn-primary:hover {
            background: var(--pine-deep);
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(10, 53, 47, 0.16);
        }

        .btn-copper {
            background: var(--copper);
            color: var(--pine-deep);
            padding: 14px 28px;
            font-size: 15px;
        }

        .btn-copper:hover {
            background: #d58b4c;
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(196, 122, 62, 0.22);
        }

        .btn-ghost-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.8);
            color: #fff;
            padding: 13px 26px;
            font-size: 15px;
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(10, 53, 47, 0.35);
            color: var(--pine-deep);
            padding: 13px 26px;
            font-size: 15px;
        }

        .btn-outline:hover {
            border-color: var(--pine);
            color: var(--pine);
            background: rgba(20, 85, 68, 0.04);
            transform: translateY(-2px);
        }

        .section {
            padding: var(--space-section) 0;
        }

        .section-title {
            font-size: 32px;
            line-height: 1.3;
            color: var(--pine-deep);
            letter-spacing: -0.01em;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--copper);
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.08em;
        }

        .section-eyebrow::before {
            content: "";
            width: 18px;
            height: 2px;
            background: var(--copper);
            border-radius: 99px;
        }

        .card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid rgba(20, 85, 68, 0.08);
            box-shadow: var(--shadow);
        }

        .topic-row {
            display: grid;
            grid-template-columns: auto 1fr auto;
            align-items: start;
            gap: 28px;
            border-bottom: 1px solid var(--line);
            padding: 34px 8px;
            transition: padding-left 0.25s ease;
        }

        .topic-row:hover {
            padding-left: 18px;
        }

        .topic-row .topic-index {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.1em;
            color: var(--copper);
            padding-top: 8px;
        }

        .topic-row h3 {
            margin: 0 0 8px;
            font-size: 22px;
            font-weight: 700;
            color: var(--pine-deep);
        }

        .topic-row p {
            margin: 0;
            color: var(--muted);
            font-size: 16px;
            line-height: 1.8;
            max-width: 640px;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            background: var(--mist);
            color: var(--pine);
            white-space: nowrap;
        }

        .topic-tag.copper {
            background: rgba(196, 122, 62, 0.12);
            color: #9a5425;
        }

        .figure-card {
            border-radius: 20px;
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow);
            border: 1px solid rgba(20, 85, 68, 0.08);
        }

        .figure-panel img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .dot-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .dot-list li {
            position: relative;
            padding: 14px 0 14px 28px;
            border-bottom: 1px solid var(--line);
            color: var(--muted);
            font-size: 16px;
            line-height: 1.7;
        }

        .dot-list li:last-child {
            border-bottom: 0;
        }

        .dot-list li::before {
            content: "";
            position: absolute;
            left: 6px;
            top: 25px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--pine);
        }

        .doc-list {
            display: grid;
            gap: 12px;
            margin: 20px 0 0;
            padding: 0;
            list-style: none;
        }

        .doc-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: #fbfaf7;
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 16px 18px;
            font-size: 15px;
            color: var(--ink);
            transition: border-color 0.2s ease, background 0.2s ease;
        }

        .doc-list li:hover {
            border-color: rgba(20, 85, 68, 0.3);
            background: #fff;
        }

        .doc-type {
            flex: 0 0 auto;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            background: var(--mist);
            color: var(--pine);
        }

        .trust-panel {
            border-radius: 20px;
            background: var(--mist);
            padding: 14px 0;
        }

        .trust-panel .trust-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            padding: 22px 20px;
            border-bottom: 1px solid rgba(20, 85, 68, 0.14);
        }

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

        .trust-item .trust-num {
            flex: 0 0 auto;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--pine);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 4px;
        }

        .trust-item h3 {
            margin: 0 0 4px;
            font-size: 17px;
            font-weight: 700;
            color: var(--pine-deep);
        }

        .trust-item p {
            margin: 0;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
        }

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

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 24px 6px;
            font-size: 17px;
            font-weight: 600;
            color: var(--pine-deep);
            transition: color 0.2s ease;
        }

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

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

        .faq-icon {
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1.5px solid var(--line);
            border-radius: 50%;
            color: var(--pine);
            font-size: 20px;
            font-weight: 300;
            transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
        }

        details[open] .faq-icon {
            transform: rotate(45deg);
            border-color: var(--pine);
            background: var(--mist);
        }

        .faq-answer {
            padding: 2px 6px 28px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.9;
            max-width: 650px;
        }

        .category-cta {
            background: linear-gradient(145deg, #0A352B 0%, #145544 100%);
            border-radius: 28px;
            padding: 42px;
            color: var(--dark-text);
            position: relative;
            overflow: hidden;
        }
        .category-cta::before {
            content: "";
            position: absolute;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            border: 1px solid rgba(255,255,255,0.08);
            top: -120px;
            right: -80px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(242, 245, 242, 0.62);
        }

        .breadcrumb a {
            transition: color 0.18s ease;
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .footer-link a {
            color: rgba(242, 245, 242, 0.66);
            transition: color 0.2s ease;
        }

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

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .section {
                padding: var(--space-mobile) 0;
            }

            .section-title {
                font-size: 26px;
            }

            .brand-logo {
                font-size: 16px;
                gap: 6px;
            }

            .brand-logo small {
                font-size: 11px;
            }

            .topic-row {
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 24px 4px;
            }

            .topic-row .topic-index {
                padding-top: 0;
            }

            .topic-row:hover {
                padding-left: 8px;
            }

            .category-cta {
                padding: 34px 26px;
            }
        }