/* roulang page: index */
:root{
    --paper:#F5F0E7;
    --paper-2:#EDE5D9;
    --paper-deep:#E4DACC;
    --ink-strong:#15231D;
    --ink-body:#3A4640;
    --ink-muted:#6A746E;
    --line:rgba(21,35,29,0.12);
    --brand-deep:#103C30;
    --brand-primary:#1D5B45;
    --brand-light:#3E7C65;
    --accent:#DF6A2F;
    --accent-deep:#B94D23;
    --accent-soft:#F9E6DC;
    --footer-bg:#10211B;
    --footer-text:#AAB8B1;
    --radius-outer:18px;
    --radius-card:12px;
    --radius-ctl:999px;
    --shadow-card:0 8px 30px rgba(16,35,26,0.08);
  }

  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink-body);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    line-height:1.75;
    letter-spacing:0.01em;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none}
  img{display:block;max-width:100%}
  input,button,select,textarea{font:inherit;color:inherit}
  h1,h2,h3,h4{color:var(--ink-strong);font-weight:800;line-height:1.35;margin:0 0 .6em;letter-spacing:-0.02em}
  p{margin:0 0 1.2em}
  ul{margin:0;padding:0}
  li{list-style:none}

  .container-x{max-width:1280px;margin-inline:auto;padding-inline:24px}

  a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
    outline:3px solid rgba(223,106,47,.5);
    outline-offset:3px;
    border-radius:6px;
  }

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:var(--radius-ctl);
    padding:11px 22px;
    font-weight:700;
    border:1px solid transparent;
    transition:background .22s ease,border-color .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease;
    white-space:nowrap;
    text-align:center;
    min-height:44px;
  }
  .btn-sm{padding:7px 16px;min-height:38px;font-size:14px}
  .btn-lg{padding:14px 30px;font-size:16px}
  .btn-primary{background:var(--accent);color:#1D1810;border-color:var(--accent)}
  .btn-primary:hover{background:var(--accent-deep);border-color:var(--accent-deep);transform:translateY(-1px);box-shadow:0 10px 20px rgba(185,77,35,.22)}
  .btn-outline{background:transparent;border-color:rgba(21,35,29,.3);color:var(--ink-strong)}
  .btn-outline:hover{border-color:var(--brand-primary);background:var(--brand-primary);color:var(--paper)}
  .btn-light{background:var(--paper);color:var(--ink-strong);border-color:var(--paper)}
  .btn-light:hover{background:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(1,1,1,.15)}
  .btn-dark{background:transparent;border-color:rgba(245,240,231,.5);color:var(--paper)}
  .btn-dark:hover{border-color:var(--accent);color:var(--accent)}

  .tag{
    display:inline-flex;
    align-items:center;
    gap:6px;
    border-radius:999px;
    background:var(--paper-deep);
    color:var(--ink-strong);
    font-size:12.5px;
    font-weight:600;
    padding:4px 12px;
    letter-spacing:.02em;
  }
  .tag-green{background:rgba(29,91,69,.14);color:var(--brand-deep)}
  .tag-orange{background:var(--accent-soft);color:var(--accent-deep)}
  .tag-light{background:rgba(245,240,231,.14);color:var(--paper)}

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:10px;
    color:var(--brand-primary);
    font-size:14px;
    font-weight:700;
    letter-spacing:.08em;
    margin-bottom:12px;
    text-transform:uppercase;
  }
  .eyebrow:before{content:"";width:32px;height:3px;background:var(--accent);border-radius:2px}

  .section{position:relative;padding:112px 0}
  .section-alt{background:var(--paper-2)}
  .section-deep{background:var(--brand-deep)}
  .section-head{max-width:860px;margin-bottom:54px}
  .section-head h2{font-size:clamp(1.7rem,3.4vw,2.7rem);margin:0;line-height:1.3}
  .section-head .lead{color:var(--ink-muted);font-size:16.5px;margin-top:18px}

  .site-header{position:sticky;top:0;z-index:70;background:rgba(245,240,231,.95);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
  .header-line{border-bottom:1px solid var(--line)}
  .topbar{display:flex;align-items:center;justify-content:space-between;gap:22px;padding-block:13px}
  .brand-logo{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
  .brand-name{display:block;font-size:24px;font-weight:900;line-height:1.1;color:var(--ink-strong);letter-spacing:-.02em}
  .brand-name em{font-style:normal;color:var(--brand-primary)}
  .brand-note{display:block;font-size:11.5px;color:var(--ink-muted);letter-spacing:.1em;margin-top:4px}
  .top-right{display:flex;align-items:center;gap:12px}
  .search-form{display:flex;align-items:center;background:var(--paper-2);border:1px solid transparent;border-radius:999px;padding:0 14px;height:42px;width:250px;transition:border-color .2s,width .2s}
  .search-form:focus-within{border-color:var(--brand-primary);background:#fff;width:300px}
  .search-form svg{flex:0 0 auto}
  .search-form input{border:none;background:transparent;outline:none;padding:0 8px;width:100%;font-size:14px}
  .search-form input::placeholder{color:var(--ink-muted)}

  .navrow{border-bottom:1px solid var(--line);background:rgba(245,240,231,.9)}
  .navtabs{display:flex;gap:4px;overflow-x:auto;padding-block:8px;scrollbar-width:none;-ms-overflow-style:none}
  .navtabs::-webkit-scrollbar{display:none}
  .navtab{
    display:inline-flex;align-items:center;justify-content:center;
    white-space:nowrap;
    min-height:44px;
    padding:0 18px;
    border-radius:999px;
    font-size:15px;
    font-weight:700;
    color:var(--ink-body);
    border:1px solid transparent;
    transition:background .22s,color .22s,border-color .22s;
    flex:0 0 auto;
  }
  .navtab:hover{background:var(--paper-deep);color:var(--ink-strong)}
  .navtab.active{background:var(--brand-primary);color:var(--paper)}
  .navtab.active:hover{background:var(--brand-deep)}

  .hero{position:relative;overflow:hidden;background:#10211B}
  .hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;transform:scale(1.01)}
  .hero-shade{position:absolute;inset:0;background:linear-gradient(104deg,rgba(16,35,26,.96) 0%,rgba(16,35,26,.78) 45%,rgba(29,91,69,.45) 100%)}
  .hero-grid{position:relative;z-index:2;padding:104px 0 112px;color:#EAE4D8}
  .hero-kicker{display:flex;align-items:center;gap:8px;color:#F2C9A8;font-size:14px;font-weight:600;letter-spacing:.06em;margin-bottom:24px}
  .hero-kicker:before{content:"";width:32px;height:2px;background:#DF6A2F}
  .hero h1{color:#fff;font-size:clamp(2.2rem,5vw,4.4rem);line-height:1.16;font-weight:900;max-width:780px;text-wrap:balance}
  .hero-sub{color:#C9D4CE;font-size:clamp(1rem,1.6vw,1.22rem);margin-top:16px;max-width:600px;line-height:1.8}
  .hero-points{display:flex;flex-wrap:wrap;gap:16px 28px;margin-top:34px;max-width:720px}
  .hero-point{display:flex;align-items:center;gap:10px;color:var(--paper);font-size:14.5px}
  .hero-point svg{opacity:.8;flex:0 0 auto}
  .hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:46px}
  .hero-note{color:var(--footer-text);font-size:13px;margin-left:4px}

  .table-shell{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-outer);background:#FFFDF8;box-shadow:0 1px 0 rgba(255,255,255,.6) inset}
  .table-scroll{overflow-x:auto;scrollbar-color:rgba(29,91,69,.3) transparent}
  .table-scroll::-webkit-scrollbar{height:8px}
  .table-scroll::-webkit-scrollbar-track{background:var(--paper-2)}
  .table-scroll::-webkit-scrollbar-thumb{background:rgba(29,91,69,.3);border-radius:8px}
  .compare-table{border-collapse:separate;border-spacing:0;width:100%;min-width:810px}
  .compare-table th{text-align:left;padding:20px 18px;font-size:14px;background:var(--paper);border-bottom:1px solid var(--line);color:var(--ink-strong);white-space:nowrap;vertical-align:bottom}
  .compare-table td{padding:15px 18px;font-size:14px;border-bottom:1px solid rgba(21,35,29,.07);color:var(--ink-body);white-space:nowrap;max-width:240px;overflow:hidden;text-overflow:ellipsis}
  .compare-table tbody tr:last-child td{border-bottom:0}
  .compare-table tbody tr{transition:background .18s}
  .compare-table tbody tr:hover td{background:rgba(21,35,29,.025)}
  .col-hot{background:rgba(29,91,69,.055);box-shadow:inset 0 4px 0 var(--brand-primary),inset 0 -4px 0 rgba(29,91,69,.08)}
  .col-hot th,.compare-table .col-hot td{background:rgba(29,91,69,.05)}
  .hot-badge{display:inline-flex;align-items:center;background:var(--accent);color:#1B150F;font-size:11.5px;padding:3px 10px;border-radius:99px;font-weight:800;margin-top:6px}
  .check{color:var(--brand-light);font-weight:900}
  .minus{color:var(--ink-muted)}

  .tier-stack{display:grid;gap:24px}
  .tier-card{display:grid;grid-template-columns:minmax(180px,0.9fr) 1.4fr minmax(140px,.6fr);gap:26px;align-items:center;background:rgba(255,255,255,.7);border:1px solid var(--line);border-radius:var(--radius-outer);padding:34px 36px;transition:box-shadow .24s,transform .24s}
  .tier-card:hover{box-shadow:var(--shadow-card);transform:translateY(-2px)}
  .tier-index{font-size:13px;font-weight:700;color:var(--ink-muted);letter-spacing:.1em}
  .tier-title{font-size:1.55rem;font-weight:900;margin:10px 0 4px;line-height:1.3}
  .tier-for{color:var(--ink-muted);font-size:14px;margin-top:8px}
  .tier-lists{display:flex;flex-wrap:wrap;gap:8px 10px}
  .tier-feature{display:inline-flex;align-items:center;gap:8px;background:var(--paper);border:1px solid var(--line);padding:8px 12px;border-radius:10px;font-size:13px;color:var(--ink-strong)}
  .tier-feature svg{color:var(--brand-light);flex:0 0 auto}
  .tier-cta{text-align:left}

  .tier-hot{background:linear-gradient(140deg,#EAF1ED,#E1EAE5);border-color:rgba(29,91,69,.4);box-shadow:0 0 0 4px rgba(29,91,69,.04);position:relative}
  .tier-hot .tier-title{color:var(--brand-primary)}
  .tier-special{background:var(--brand-deep);border-color:var(--brand-deep);color:#BCC8C1}
  .tier-special .tier-title,.tier-special .tier-index{color:#fff}
  .tier-special .tier-for{color:var(--footer-text)}
  .tier-special .tier-feature{background:rgba(255,255,255,.08);border-color:rgba(245,240,231,.15);color:var(--paper)}
  .tier-badge{position:absolute;top:-13px;right:30px;background:var(--accent);color:#1B150F;font-size:12px;font-weight:800;padding:4px 14px;border-radius:999px}

  .preview-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
  .preview-main{grid-column:span 12}
  .preview-card{grid-column:span 6}
  .preview-cell{position:relative;overflow:hidden;border-radius:var(--radius-outer);border:1px solid var(--line);background:var(--paper-2);transition:box-shadow .24s,transform .24s}
  .preview-cell:hover{box-shadow:var(--shadow-card);transform:translateY(-3px)}
  .preview-media{position:relative;overflow:hidden;min-height:190px;background:var(--brand-deep)}
  .preview-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
  .preview-cell:hover .preview-media img{transform:scale(1.03)}
  .preview-lock{position:absolute;top:14px;right:14px;display:inline-flex;align-items:center;gap:6px;background:rgba(16,35,26,.82);color:var(--paper);font-size:12px;padding:6px 12px;border-radius:999px}
  .preview-body{padding:22px 24px 26px;background:#FFFDF8}
  .preview-body h3{margin:14px 0 8px;font-size:20px;line-height:1.45}
  .preview-body p{color:var(--ink-muted);font-size:14px;margin:0}
  .preview-meta{display:flex;align-items:center;justify-content:space-between;margin-top:18px;color:var(--ink-muted);font-size:13px}
  .textlink{display:inline-flex;align-items:center;gap:6px;color:var(--brand-primary);font-weight:700}
  .textlink:hover{color:var(--accent-deep);text-decoration:underline;text-underline-offset:4px}
  .preview-main .preview-cell{display:grid;grid-template-columns:1.2fr .8fr;min-height:340px}
  .preview-main .preview-media{min-height:100%}
  .preview-main .preview-body{padding:48px 42px}

  .news-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:28px}
  .news-primary{background:var(--brand-deep);border-radius:var(--radius-outer);padding:36px 42px;color:var(--paper);display:flex;flex-direction:column;justify-content:space-between;min-height:420px}
  .news-top{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:30px}
  .news-primary h3{color:#fff;font-size:clamp(1.3rem,2.2vw,1.85rem);line-height:1.5;margin:0 0 16px}
  .news-primary .news-summary{color:#C4CFC9;font-size:14.5px;margin-bottom:34px}
  .news-itemlist{display:flex;flex-direction:column;gap:0;border-top:1px solid rgba(21,35,29,.08)}
  .news-item{border-bottom:1px solid rgba(21,35,29,.08);padding:20px 4px 20px 0;display:flex;flex-direction:column;gap:8px;transition:background .2s}
  .news-item:hover{background:rgba(245,240,231,.45)}
  .news-item h4{font-size:16px;margin:0;line-height:1.55}
  .news-item h4 a{color:var(--ink-strong)}
  .news-item h4 a:hover{color:var(--brand-primary)}
  .news-item .meta-row{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-muted)}
  .news-item .meta-row .sep{width:3px;height:3px;border-radius:50%;background:var(--ink-muted)}
  .news-empty{border:1px dashed rgba(21,35,29,.2);border-radius:var(--radius-outer);padding:64px 32px;text-align:center;color:var(--ink-muted);background:rgba(245,240,231,.6);font-weight:600}

  .faq-area{max-width:860px;margin-inline:auto}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item summary{
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    gap:20px;
    font-size:17px;
    font-weight:700;
    color:var(--ink-strong);
    padding:28px 4px;
    cursor:pointer;
    list-style:none;
    transition:color .2s,padding-left .2s;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--brand-primary)}
  .faq-item summary .icon{color:var(--brand-primary);font-size:22px;font-weight:400;flex:0 0 auto}
  .faq-item[open] summary{color:var(--brand-primary);border-left:3px solid var(--accent);padding-left:22px}
  .faq-item p{padding:0 8px 28px 24px;color:var(--ink-muted);font-size:15.5px;max-width:94%}

  .joinbox{position:relative;overflow:hidden;background:var(--brand-deep);border-radius:var(--radius-outer);color:var(--paper);padding:76px 72px}
  .joinbox:before{content:"";position:absolute;width:360px;height:360px;border-radius:50%;background:rgba(223,106,47,.25);top:-150px;right:-120px}
  .join-content{position:relative;z-index:2;max-width:700px}
  .join-content h2{color:#fff;font-size:clamp(1.8rem,3.4vw,2.8rem);line-height:1.32;margin-bottom:20px}
  .join-content p{color:#C4CFC9;font-size:16px;margin-bottom:30px}
  .join-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-top:12px}
  .join-foot{color:var(--footer-text);font-size:13px;margin-top:26px}

  .footer{background:var(--footer-bg);color:var(--footer-text);padding-top:76px}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr .9fr;gap:40px 60px;padding-bottom:58px}
  .footer-brand .brand-name{color:#fff;font-size:26px}
  .footer-brand .brand-note{color:var(--footer-text)}
  .footer p.desc{font-size:14px;line-height:1.9;margin-top:18px;max-width:340px;color:#8FA099}
  .footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
  .footer ul{display:flex;flex-direction:column;gap:10px}
  .footer-link{color:var(--footer-text);font-size:14px;transition:color .2s,padding-left .2s}
  .footer-link:hover{color:var(--paper);padding-left:6px}
  .footer-bottom{border-top:1px solid rgba(245,240,231,.1);padding:26px 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
  .footer-bottom p{margin:0;font-size:13px;color:#88968F}

  @media (max-width:1024px){
    .section{padding:84px 0}
    .tier-card{grid-template-columns:1fr;gap:20px;padding:28px}
    .tier-cta{text-align:left}
    .preview-main .preview-cell{grid-template-columns:1fr;min-height:0}
    .preview-main .preview-media{min-height:260px}
    .preview-main .preview-body{padding:30px}
    .news-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr}
  }
  @media (max-width:768px){
    .section{padding:68px 0}
    .container-x{padding-inline:18px}
    .topbar{gap:12px}
    .brand-name{font-size:21px}
    .brand-note{display:none}
    .search-form{display:none}
    .navtab{padding:0 14px;font-size:14px}
    .hero-grid{padding:72px 0 88px}
    .hero-cta .btn{width:100%;justify-content:center}
    .compare-table th,.compare-table td{padding:14px 14px;font-size:13px}
    .tier-card{padding:26px}
    .preview-grid{grid-template-columns:1fr}
    .preview-card,.preview-main{grid-column:auto}
    .joinbox{padding:50px 28px}
    .joinbox:before{width:260px;height:260px}
    .footer-grid{grid-template-columns:1fr;gap:34px}
    .hero-points{gap:12px 16px}
  }
  @media (max-width:520px){
    .section{padding:56px 0}
    .btn-lg{font-size:15px}
    .topbar{padding-block:12px}
    .cta-mini{font-size:13px;padding:8px 16px;min-height:38px}
    .navtab{min-height:42px;padding:0 13px;font-size:13.5px}
    .hero h1{font-size:2.1rem}
    .table-scroll{margin-inline:-6px}
    .tier-feature{padding:7px 10px}
    .news-primary{padding:26px 24px;min-height:auto}
    .preview-body h3{font-size:17px}
    .footer-bottom{flex-direction:column;text-align:center}
  }
  @media (prefers-reduced-motion: reduce){
    *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  }

/* roulang page: category1 */
:root {
    --paper: #F5F0E7;
    --paper-2: #EDE5D9;
    --paper-deep: #E4DACC;
    --ink-strong: #15231D;
    --ink-body: #3A4640;
    --ink-muted: #6A746E;
    --line: rgba(21, 35, 29, .12);
    --brand-deep: #103C30;
    --brand-primary: #1D5B45;
    --brand-light: #3E7C65;
    --accent: #DF6A2F;
    --accent-deep: #B94D23;
    --accent-soft: #F9E6DC;
    --footer-bg: #10211B;
    --footer-text: #AAB8B1;
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-card: 0 8px 30px rgba(16, 35, 26, .08);
    --shadow-deep: 0 16px 40px rgba(16, 35, 26, .14);
  }

  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
    background: var(--paper);
    color: var(--ink-body);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }
  img {
    display: block;
    max-width: 100%;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
  button,
  input {
    font-family: inherit;
  }
  :focus-visible {
    outline: 3px solid rgba(223, 106, 47, .5);
    outline-offset: 2px;
    border-radius: 4px;
  }

  .container-x {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .no-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
  }
  .no-scrollbar::-webkit-scrollbar {
    display: none;
  }

  /* ===== site header ===== */
  .site-header {
    position: relative;
    z-index: 50;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }
  .header-line {
    background: #fff;
  }
  .topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    padding: 18px 0 16px;
  }
  .brand-logo {
    display: inline-flex;
    flex-direction: column;
    line-height: 1.25;
    flex-shrink: 0;
  }
  .brand-name {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--ink-strong);
    white-space: nowrap;
  }
  .brand-name em {
    font-style: normal;
    color: var(--brand-primary);
  }
  .brand-note {
    font-size: .78rem;
    color: var(--ink-muted);
    margin-top: 2px;
    letter-spacing: .05em;
  }
  .top-right {
    display: flex;
    align-items: center;
    gap: 14px;
  }
  .search-form {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 7px 16px;
    width: 250px;
    transition: border-color .2s ease, box-shadow .2s ease;
  }
  .search-form:focus-within {
    border-color: rgba(29, 91, 69, .5);
    box-shadow: 0 0 0 4px rgba(29, 91, 69, .08);
  }
  .search-form input {
    border: 0;
    outline: none;
    background: transparent;
    font-size: .9rem;
    width: 100%;
    color: var(--ink-strong);
  }
  .search-form input::placeholder {
    color: #8C938F;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: .01em;
    transition: all .2s ease;
    cursor: pointer;
    border: 1px solid transparent;
    white-space: nowrap;
  }
  .btn-primary {
    background: var(--accent);
    color: #1A1A1A;
    border-color: var(--accent);
  }
  .btn-primary:hover {
    background: var(--accent-deep);
    border-color: var(--accent-deep);
    color: #fff;
    transform: translateY(-1px);
  }
  .btn-sm {
    font-size: .87rem;
    padding: 9px 22px;
  }
  .cta-mini {
    padding: 9px 20px;
  }

  .navrow {
    background: #fff;
    border-top: 1px solid rgba(255, 255, 255, .05);
  }
  .navtabs {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 6px 0 14px;
    white-space: nowrap;
  }
  .navtab {
    font-size: .96rem;
    font-weight: 500;
    color: var(--ink-muted);
    padding: 8px 18px;
    border-radius: 999px;
    transition: background .2s ease, color .2s ease;
    min-height: 40px;
    display: inline-flex;
    align-items: center;
  }
  .navtab:hover {
    color: var(--brand-primary);
    background: var(--paper-2);
  }
  .navtab.active {
    background: var(--brand-deep);
    color: #F5F0E7;
    font-weight: 600;
  }

  /* ===== common section styles ===== */
  .section {
    padding-top: 96px;
    padding-bottom: 96px;
  }
  .section-tight {
    padding-top: 68px;
    padding-bottom: 68px;
  }
  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: .83rem;
    font-weight: 600;
    color: var(--brand-light);
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: 5px 12px;
    border: 1px solid rgba(29, 91, 69, .4);
    border-radius: 999px;
    background: rgba(29, 91, 69, .05);
  }
  .section-head {
    margin-bottom: 48px;
  }
  .section-title {
    font-size: clamp(1.7rem, 3.2vw, 2.5rem);
    font-weight: 800;
    color: var(--ink-strong);
    letter-spacing: -0.02em;
    line-height: 1.25;
    margin-top: 16px;
  }
  .section-sub {
    color: var(--ink-muted);
    font-size: 1.05rem;
    margin-top: 12px;
    max-width: 720px;
  }

  .text-body {
    color: var(--ink-body);
  }
  .bg-paper-deep {
    background: var(--paper-2);
  }

  .shadow-card {
    box-shadow: var(--shadow-card);
  }

  /* ===== hero ===== */
  .cat-hero {
    position: relative;
    background: var(--brand-deep) url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
    overflow: hidden;
  }
  .cat-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, rgba(16, 33, 27, .97) 0%, rgba(16, 33, 27, .82) 54%, rgba(16, 33, 27, .42) 100%);
    z-index: 1;
  }
  .cat-hero-inner {
    position: relative;
    z-index: 2;
    padding: 100px 0 104px;
    max-width: 900px;
  }
  .cat-hero .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(245, 240, 231, .12);
    border: 1px solid rgba(245, 240, 231, .24);
    padding: 7px 16px;
    border-radius: 999px;
    color: #EDE5D9;
    font-size: .85rem;
    font-weight: 500;
    margin-bottom: 26px;
    backdrop-filter: blur(8px);
  }
  .cat-hero h1 {
    font-size: clamp(2.4rem, 5.4vw, 4.1rem);
    font-weight: 900;
    color: #FAF6EE;
    letter-spacing: -0.02em;
    line-height: 1.08;
  }
  .cat-hero .lead {
    font-size: 1.16rem;
    color: rgba(245, 240, 231, .86);
    margin-top: 22px;
    max-width: 660px;
    line-height: 1.8;
  }
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 38px;
  }
  .btn-hero {
    background: var(--accent);
    color: #1A1A1A;
    padding: 14px 30px;
    font-size: .98rem;
    border-radius: 999px;
    font-weight: 700;
    transition: all .2s ease;
  }
  .btn-hero:hover {
    background: var(--accent-deep);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(223, 106, 47, .3);
  }
  .btn-ghost-light {
    padding: 14px 28px;
    border: 1px solid rgba(245, 240, 231, .4);
    border-radius: 999px;
    color: #F5F0E7;
    font-weight: 600;
    font-size: .96rem;
    transition: background .2s ease, border-color .2s ease;
  }
  .btn-ghost-light:hover {
    background: rgba(245, 240, 231, .1);
    border-color: rgba(245, 240, 231, .8);
  }

  /* ===== stat strip ===== */
  .stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: -50px;
  }
  .stat-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 24px 26px;
    border: 1px solid var(--line);
    box-shadow: 0 4px 18px rgba(16, 35, 26, .05);
    position: relative;
    z-index: 3;
  }
  .stat-num {
    font-size: 2.1rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--brand-primary);
    letter-spacing: -0.02em;
  }
  .stat-num em {
    font-style: normal;
    color: var(--accent);
  }
  .stat-label {
    color: var(--ink-muted);
    font-size: .9rem;
    margin-top: 6px;
  }

  /* ===== trending pick section ===== */
  .spotlight-card {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-card);
    transition: transform .25s ease, box-shadow .25s ease;
  }
  .spotlight-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-deep);
  }
  .spotlight-media {
    min-height: 300px;
    background-size: cover;
    background-position: center;
    position: relative;
  }
  .tag-chip {
    position: absolute;
    left: 18px;
    top: 18px;
    background: rgba(16, 35, 26, .82);
    color: #F5F0E7;
    font-size: .8rem;
    padding: 5px 14px;
    border-radius: 999px;
    backdrop-filter: blur(6px);
  }
  .spotlight-body {
    padding: 42px 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .match-code {
    font-size: .82rem;
    font-weight: 600;
    color: var(--accent-deep);
    text-transform: uppercase;
    letter-spacing: .1em;
  }
  .spotlight-body h2 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--ink-strong);
    margin: 10px 0 14px;
    letter-spacing: -0.01em;
    line-height: 1.3;
  }
  .spotlight-body p {
    color: var(--ink-body);
    font-size: 1rem;
    line-height: 1.8;
  }

  .meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 22px;
    font-size: .86rem;
    color: var(--ink-muted);
  }
  .mini-link {
    margin-top: 24px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 600;
    color: var(--brand-primary);
    border-bottom: 1px solid rgba(29, 91, 69, .35);
    padding-bottom: 2px;
    transition: border-color .2s ease;
  }
  .mini-link:hover {
    border-color: var(--brand-deep);
    color: var(--brand-deep);
  }

  .secondary-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 24px;
  }
  .secondary-card {
    display: flex;
    gap: 20px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 18px;
    transition: border-color .2s ease, box-shadow .2s ease;
  }
  .secondary-card:hover {
    border-color: rgba(29, 91, 69, .4);
    box-shadow: var(--shadow-card);
  }
  .secondary-thumb {
    flex: 0 0 120px;
    border-radius: 10px;
    overflow: hidden;
    background-color: var(--paper-deep);
  }
  .secondary-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .secondary-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .category-tag {
    font-size: .76rem;
    color: var(--brand-light);
    font-weight: 600;
  }
  .secondary-info h3 {
    font-size: 1.12rem;
    font-weight: 700;
    color: var(--ink-strong);
    line-height: 1.45;
    margin-top: 5px;
  }
  .secondary-info .time {
    margin-top: 10px;
    font-size: .82rem;
    color: var(--ink-muted);
  }

  /* ===== deep method section (dark green) ===== */
  .deep-green-section {
    background: var(--brand-deep);
    color: #E7E1D6;
  }
  .deep-green-section .section-title {
    color: #F7F2E9;
  }
  .deep-green-section .section-sub {
    color: rgba(232, 225, 213, .7);
  }
  .method-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .method-card {
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: var(--radius-lg);
    padding: 34px 30px;
    transition: transform .2s ease, background .2s ease;
  }
  .method-card:hover {
    background: rgba(255, 255, 255, .1);
    transform: translateY(-3px);
  }
  .method-step {
    font-size: .84rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: .1em;
    text-transform: uppercase;
  }
  .method-card h3 {
    color: #F5F0E7;
    font-size: 1.25rem;
    font-weight: 700;
    margin-top: 10px;
  }
  .method-card p {
    color: rgba(232, 225, 213, .72);
    margin-top: 12px;
    font-size: .96rem;
  }

  /* ===== field / data listing ===== */
  .coverage-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
  }
  .coverage-item {
    border-top: 2px solid var(--line);
    padding-top: 16px;
    transition: border-color .2s ease;
  }
  .coverage-item:hover {
    border-color: var(--brand-primary);
  }
  .coverage-item h3 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--ink-strong);
    letter-spacing: -0.01em;
  }
  .coverage-item p {
    font-size: .92rem;
    color: var(--ink-muted);
    margin-top: 6px;
    line-height: 1.75;
  }

  /* ===== brand point split ===== */
  .split-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-card);
  }
  .split-left {
    padding: 44px 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .split-right {
    background: var(--paper-2);
    padding: 44px 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .feature-list {
    margin-top: 0px;
  }
  .feature-list li {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
    font-size: 1rem;
    color: var(--ink-body);
    line-height: 1.7;
    align-items: flex-start;
  }
  .feature-list li:last-child {
    border-bottom: 0;
  }
  .feature-dot {
    flex: 0 0 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    margin-top: 12px;
  }
  .topic-tag {
    display: inline-block;
    font-size: .8rem;
    font-weight: 600;
    background: rgba(29, 91, 69, .08);
    color: var(--brand-primary);
    border-radius: 999px;
    padding: 4px 14px;
  }

  /* ===== comparison-mini ===== */
  .lane-list {
    display: flex;
    flex-direction: column;
  }
  .lane-row {
    display: grid;
    grid-template-columns: 96px 1fr auto;
    align-items: center;
    gap: 20px;
    padding: 18px 4px;
    border-bottom: 1px solid var(--line);
  }
  .lane-row .lane-icon {
    font-size: .8rem;
    font-weight: 700;
    color: var(--accent-deep);
    background: var(--accent-soft);
    width: 38px;
    height: 38px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .lane-row .lane-name {
    font-weight: 700;
    color: var(--ink-strong);
  }
  .lane-row .lane-copy {
    color: var(--ink-muted);
    font-size: .9rem;
  }

  /* ===== faq ===== */
  .faq-wrap {
    max-width: 860px;
    margin: 0 auto;
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    overflow: hidden;
  }
  .faq-item {
    border-bottom: 1px solid var(--line);
  }
  .faq-item:last-child {
    border-bottom: 0;
  }
  .faq-q {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding: 24px 28px;
    background: transparent;
    border: 0;
    text-align: left;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--ink-strong);
    cursor: pointer;
    transition: background .2s ease, color .2s ease, padding-right .2s;
  }
  .faq-q:hover {
    background: var(--paper);
    color: var(--brand-deep);
  }
  .faq-item.active .faq-q {
    color: var(--accent-deep);
  }
  .faq-icon {
    position: relative;
    width: 16px;
    height: 16px;
    flex: 0 0 16px;
  }
  .faq-icon::before,
  .faq-icon::after {
    content: '';
    position: absolute;
    background: currentColor;
    transition: all .25s ease;
  }
  .faq-icon::before {
    top: 7px;
    left: 0;
    width: 16px;
    height: 2px;
  }
  .faq-icon::after {
    left: 7px;
    top: 0;
    width: 2px;
    height: 16px;
  }
  .faq-item.active .faq-icon::after {
    transform: scaleY(0);
  }
  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }
  .faq-a-inner {
    padding: 0 28px 22px;
    color: var(--ink-body);
    font-size: .98rem;
    line-height: 1.8;
  }

  /* ===== cta ===== */
  .cta-block {
    background: var(--brand-deep) url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    padding: 68px 56px;
  }
  .cta-block::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(16, 35, 26, .94) 20%, rgba(16, 35, 26, .65) 100%);
    z-index: 1;
  }
  .cta-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
  }
  .cta-content h2 {
    color: #F9F4EB;
    font-size: clamp(1.7rem, 3.4vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.02em;
  }
  .cta-content p {
    color: rgba(245, 240, 231, .82);
    margin-top: 14px;
    font-size: 1.05rem;
    line-height: 1.8;
  }
  .cta-actions {
    display: flex;
    gap: 14px;
    margin-top: 28px;
    flex-wrap: wrap;
  }
  .cta-note {
    color: rgba(245, 240, 231, .55);
    font-size: .82rem;
    margin-top: 16px;
  }

  /* ===== footer ===== */
  .footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 72px 0 30px;
    margin-top: 96px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.2fr;
    gap: 56px;
    margin-bottom: 52px;
  }
  .footer-brand .brand-name {
    color: #F9F4EB;
    display: inline-flex;
    align-items: baseline;
    gap: 2px;
  }
  .footer-brand .brand-note {
    display: block;
    color: #7C8C84;
    margin-top: 2px;
    font-size: .82rem;
  }
  .footer-brand .desc {
    margin-top: 18px;
    max-width: 360px;
    color: #9DAAA3;
    font-size: .95rem;
    line-height: 1.8;
  }
  .footer h4 {
    color: #F5EFE5;
    font-size: 1.05rem;
    margin-bottom: 18px;
    font-weight: 700;
  }
  .footer ul {
    list-style: none;
  }
  .footer ul li {
    margin-bottom: 12px;
  }
  .footer-link {
    color: #9DAAA3;
    font-size: .95rem;
    transition: color .2s ease, padding-left .2s ease;
    display: inline-block;
  }
  .footer-link:hover {
    color: #fff;
    padding-left: 6px;
  }
  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .09);
    padding-top: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px 32px;
    justify-content: space-between;
    font-size: .86rem;
    color: #7B8E85;
  }

  /* ===== responsive ===== */
  @media (max-width: 1024px) {
    .stat-grid {
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }
    .stat-card {
      padding: 18px;
    }
    .secondary-grid {
      grid-template-columns: 1fr 1fr;
    }
    .method-grid {
      grid-template-columns: 1fr 1fr;
    }
    .coverage-list {
      grid-template-columns: repeat(2, 1fr);
    }
    .split-card {
      grid-template-columns: 1fr;
    }
    .footer-grid {
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 36px;
    }
  }

  @media (max-width: 820px) {
    .container-x {
      padding-left: 20px;
      padding-right: 20px;
    }
    .section {
      padding-top: 64px;
      padding-bottom: 64px;
    }
    .spotlight-card {
      grid-template-columns: 1fr;
    }
    .spotlight-media {
      min-height: 240px;
    }
    .spotlight-body {
      padding: 28px;
    }
    .secondary-grid {
      grid-template-columns: 1fr;
    }
    .topbar {
      gap: 12px;
    }
    .brand-note {
      display: none;
    }
    .search-form {
      width: 46px;
      padding: 7px 10px;
      border-radius: 50%;
      justify-content: center;
    }
    .search-form input {
      display: none;
    }
    .cta-mini {
      font-size: .82rem;
      padding: 8px 16px;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 30px;
    }
    .stat-grid {
      grid-template-columns: repeat(2, 1fr);
      margin-top: 0;
    }
    .method-grid {
      grid-template-columns: 1fr;
    }
    .coverage-list {
      grid-template-columns: 1fr;
    }
    .cat-hero-inner {
      padding: 60px 0 60px;
    }
    .lane-row {
      grid-template-columns: 1fr;
      gap: 6px;
    }
    .cta-block {
      padding: 44px 28px;
    }
  }

  @media (max-width: 520px) {
    .navtabs {
      padding-bottom: 8px;
    }
    .header-line .container-x {
      padding-left: 16px;
      padding-right: 16px;
    }
    .topbar {
      padding: 14px 0;
    }
    .brand-name {
      font-size: 1.2rem;
    }
    .brand-logo .brand-name {
      display: flex;
      flex-direction: column;
      line-height: 1.3;
    }
    .stat-card {
      padding: 16px 14px;
    }
    .stat-num {
      font-size: 1.6rem;
    }
    .footer {
      padding-top: 52px;
    }
  }

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

/* roulang page: article */
:root {
        --paper: #F5F0E7;
        --paper-2: #EDE5D9;
        --paper-deep: #E4DACC;
        --ink-strong: #15231D;
        --ink-body: #3A4640;
        --ink-muted: #6A746E;
        --line: rgba(21, 35, 29, 0.12);
        --brand-deep: #103C30;
        --brand-primary: #1D5B45;
        --brand-light: #3E7C65;
        --accent: #DF6A2F;
        --accent-deep: #B94D23;
        --accent-soft: #F9E6DC;
        --footer-bg: #10211B;
        --footer-text: #AAB8B1;
        --radius-lg: 20px;
        --radius-md: 12px;
        --radius-sm: 8px;
        --shadow-hover: 0 8px 30px rgba(16, 35, 26, 0.08);
        --ease: 200ms cubic-bezier(0.22, 1, 0.36, 1);
        --container: 1280px;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        background: var(--paper);
        color: var(--ink-body);
        font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        font-size: 16px;
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
        text-rendering: optimizeLegibility;
    }

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

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

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

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

    ul, ol {
        margin: 0;
        padding: 0;
    }

    h1, h2, h3, h4 {
        margin: 0;
        font-weight: 700;
        color: var(--ink-strong);
        line-height: 1.2;
    }

    .container-x {
        max-width: var(--container);
        margin: 0 auto;
        padding-left: 28px;
        padding-right: 28px;
    }

    @media (max-width: 640px) {
        .container-x {
            padding-left: 18px;
            padding-right: 18px;
        }
    }

    .no-scrollbar {
        -ms-overflow-style: none;
        scrollbar-width: none;
    }
    .no-scrollbar::-webkit-scrollbar {
        display: none;
    }

    .site-header {
        position: relative;
        z-index: 50;
        background: rgba(245, 240, 231, 0.96);
        border-bottom: 1px solid var(--line);
        backdrop-filter: blur(10px);
    }

    .header-line {
        border-bottom: 1px solid var(--line);
        background: rgba(250, 247, 240, 1);
    }

    .topbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 76px;
        gap: 20px;
    }

    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
        transition: opacity var(--ease), transform var(--ease);
    }

    .brand-logo:hover {
        opacity: 0.86;
        transform: translateY(-1px);
    }

    .brand-name {
        display: block;
        color: var(--ink-strong);
        font-size: 1.9rem;
        font-weight: 800;
        letter-spacing: -0.02em;
        line-height: 1;
        white-space: nowrap;
    }

    .brand-name em {
        font-style: normal;
        color: var(--brand-primary);
    }

    .brand-note {
        display: block;
        font-size: 0.78rem;
        font-weight: 500;
        letter-spacing: 0.05em;
        color: var(--ink-muted);
        border-top: 1px solid rgba(21, 35, 29, 0.1);
        margin-top: 5px;
        padding-top: 5px;
        white-space: nowrap;
    }

    .top-right {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }

    .search-form {
        display: flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.55);
        border: 1px solid var(--line);
        border-radius: 999px;
        padding: 8px 14px;
        min-width: 220px;
        transition: border-color var(--ease), background var(--ease), box-shadow var(--ease);
    }

    .search-form:focus-within {
        border-color: var(--brand-primary);
        background: #fff;
        box-shadow: 0 0 0 3px rgba(29, 91, 69, 0.12);
    }

    .search-form input {
        width: 100%;
        border: none;
        outline: none;
        background: transparent;
        color: var(--ink-strong);
        font-size: 0.9rem;
        line-height: 1.2;
    }

    .search-form input::placeholder {
        color: var(--ink-muted);
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 999px;
        font-weight: 600;
        line-height: 1;
        letter-spacing: 0.02em;
        white-space: nowrap;
        border: 1px solid transparent;
        transition: color var(--ease), background var(--ease), border-color var(--ease), box-shadow var(--ease), transform var(--ease);
        cursor: pointer;
    }

    .btn:focus-visible {
        outline: 3px solid rgba(223, 106, 47, 0.35);
        outline-offset: 2px;
    }

    .btn-primary {
        background: var(--accent);
        color: #15231D;
        border-color: var(--accent);
    }

    .btn-primary:hover {
        background: var(--accent-deep);
        border-color: var(--accent-deep);
        color: #fff;
        box-shadow: 0 8px 22px rgba(185, 77, 35, 0.25);
        transform: translateY(-1px);
    }

    .btn-primary:active {
        transform: translateY(0);
        box-shadow: none;
    }

    .btn-sm {
        padding: 11px 20px;
        font-size: 0.82rem;
    }

    .cta-mini {
        padding: 11px 22px;
    }

    .btn-outline {
        background: var(--paper);
        border-color: var(--brand-primary);
        color: var(--brand-primary);
    }

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

    .btn-dark {
        background: var(--ink-strong);
        color: var(--paper);
        border-color: var(--ink-strong);
    }

    .btn-dark:hover {
        background: #23362c;
        color: #ffffff;
    }

    .navrow {
        border-bottom: 1px solid var(--line);
        background: var(--paper);
    }

    .navtabs {
        display: flex;
        align-items: center;
        gap: 8px;
        overflow-x: auto;
        white-space: nowrap;
        padding: 10px 0;
    }

    .navtab {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 11px 20px;
        border-radius: 999px;
        color: var(--ink-body);
        font-weight: 500;
        font-size: 0.9rem;
        border: 1px solid transparent;
        background: transparent;
        min-height: 44px;
        transition: color var(--ease), background var(--ease), border-color var(--ease);
    }

    .navtab:hover {
        color: var(--brand-primary);
        background: rgba(29, 91, 69, 0.08);
        border-color: rgba(29, 91, 69, 0.1);
    }

    .navtab.active {
        background: var(--brand-deep);
        color: #F9F5EE;
        font-weight: 600;
        border-color: var(--brand-deep);
    }

    .navtab.active:hover {
        background: var(--brand-primary);
        color: #fff;
        border-color: var(--brand-primary);
    }

    @media (max-width: 900px) {
        .topbar {
            min-height: 66px;
            gap: 12px;
        }
        .brand-logo {
            gap: 8px;
        }
        .brand-name {
            font-size: 1.5rem;
        }
        .search-form {
            min-width: 150px;
            padding: 7px 12px;
        }
        .cta-mini {
            padding: 10px 16px;
            font-size: 0.78rem;
        }
    }

    @media (max-width: 640px) {
        .topbar {
            flex-wrap: nowrap;
        }
        .brand-note {
            display: none;
        }
        .search-form {
            display: none;
        }
        .cta-mini {
            padding: 9px 14px;
        }
        .navtabs {
            padding: 8px 0 10px;
        }
        .navtab {
            font-size: 0.84rem;
            padding: 9px 16px;
        }
    }

    /* 文章页框架 */
    .article-shell {
        padding-bottom: 80px;
    }

    .article-banner {
        position: relative;
        min-height: 320px;
        background: var(--brand-deep);
        display: flex;
        align-items: flex-end;
        overflow: hidden;
    }

    .article-banner-bg {
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-position: center;
        opacity: 0.25;
    }

    .article-banner::after {
        content: '';
        display: block;
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(16, 44, 35, 0.15) 0%, rgba(16, 44, 35, 0.84) 76%, #f5f0e7 100%);
    }

    .article-banner-inner {
        position: relative;
        z-index: 2;
        width: min(1120px, 92%);
        margin: 0 auto;
        padding-top: 64px;
        padding-bottom: 70px;
        color: var(--paper);
    }

    .crumb {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px;
        margin-bottom: 28px;
        font-size: 0.88rem;
        color: rgba(245, 240, 231, 0.68);
    }

    .crumb a {
        color: rgba(245, 240, 231, 0.82);
        transition: color var(--ease);
        display: inline-flex;
        align-items: center;
    }

    .crumb a:hover {
        color: #ffffff;
    }

    .crumb-sep {
        display: inline-block;
        color: rgba(245, 240, 231, 0.35);
        padding: 0 3px;
    }

    .crumb .tag-em {
        background: var(--accent);
        color: #15231D;
        font-weight: 600;
        padding: 3px 12px;
        border-radius: 999px;
        font-size: 0.75rem;
        margin-left: 4px;
    }

    .post-cat {
        display: inline-block;
        font-size: 0.8rem;
        font-weight: 600;
        color: #F7DFC8;
        background: rgba(223, 106, 47, 0.16);
        border: 1px solid rgba(223, 106, 47, 0.4);
        border-radius: 999px;
        padding: 4px 14px;
        margin-bottom: 20px;
    }

    .article-heading {
        font-size: clamp(1.9rem, 4.2vw, 3.4rem);
        font-weight: 800;
        color: #ffffff;
        letter-spacing: -0.025em;
        margin-bottom: 22px;
        max-width: 940px;
    }

    .article-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 16px 24px;
        color: rgba(245, 240, 231, 0.74);
        font-size: 0.88rem;
        margin-bottom: 8px;
    }

    .article-meta .meta-item {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .article-body-wrap {
        width: min(1180px, 92%);
        margin: -32px auto 0;
        position: relative;
        z-index: 8;
    }

    .article-layout {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
        gap: 36px;
        padding-bottom: 40px;
    }

    .reading-column {
        background: #fffdf8;
        border: 1px solid var(--line);
        border-radius: 20px;
        box-shadow: 0 4px 24px rgba(16, 35, 26, 0.05);
        padding: clamp(26px, 5vw, 72px) clamp(22px, 5vw, 82px);
        width: min(880px, 100%);
        margin: 0 auto;
    }

    .prose-body {
        font-size: 1.03rem;
        line-height: 1.9;
        color: var(--ink-body);
        word-break: break-word;
    }

    .prose-body p {
        margin: 0 0 1.6em;
    }

    .prose-body > *:first-child {
        margin-top: 0;
    }

    .prose-body > *:last-child {
        margin-bottom: 0;
    }

    .prose-body h2 {
        font-size: clamp(1.3rem, 2.4vw, 1.7rem);
        line-height: 1.4;
        margin: 1.6em 0 0.65em;
        padding-top: 0.3em;
        letter-spacing: -0.01em;
    }

    .prose-body h3 {
        font-size: 1.18rem;
        line-height: 1.5;
        margin: 1.45em 0 0.5em;
        color: var(--brand-deep);
    }

    .prose-body h4 {
        font-size: 1.02rem;
        margin: 1.3em 0 0.4em;
        color: var(--ink-strong);
    }

    .prose-body blockquote {
        margin: 1.75em 0;
        padding: 16px 24px;
        border-left: 4px solid var(--brand-primary);
        background: #F2EDE4;
        color: var(--ink-body);
        border-radius: 0 12px 12px 0;
        font-style: normal;
    }

    .prose-body ul,
    .prose-body ol {
        margin: 0 0 1.6em 1.1em;
        display: grid;
        gap: 0.4em;
    }

    .prose-body li {
        padding-left: 4px;
    }

    .prose-body a {
        color: var(--brand-primary);
        text-decoration: underline;
        text-underline-offset: 3px;
        text-decoration-color: rgba(29, 91, 69, 0.32);
        transition: color var(--ease), text-decoration-color var(--ease);
    }

    .prose-body a:hover {
        text-decoration-color: var(--brand-primary);
        color: var(--brand-deep);
    }

    .prose-body img {
        border-radius: 12px;
        margin: 2em 0;
    }

    .prose-body figure {
        margin: 2em 0;
    }

    .prose-body figure img {
        margin: 0 0 10px;
    }

    .prose-body figure figcaption {
        color: var(--ink-muted);
        font-size: 0.86rem;
        text-align: center;
    }

    .prose-body table {
        width: 100%;
        border-collapse: collapse;
        margin: 2em 0;
        background: #fff;
        border-radius: 12px;
        overflow: hidden;
        font-size: 0.94rem;
    }

    .prose-body th,
    .prose-body td {
        border: 1px solid rgba(21, 35, 29, 0.1);
        padding: 12px 16px;
        text-align: left;
    }

    .prose-body th {
        background: #EDE7DC;
        color: var(--ink-strong);
        font-weight: 700;
    }

    .article-divider {
        border: none;
        border-top: 1px solid var(--line);
        margin: 34px 0;
    }

    .post-tagline {
        display: flex;
        align-items: center;
        gap: 8px;
        font-weight: 600;
        color: var(--ink-muted);
        font-size: 0.85rem;
        margin-top: 40px;
        padding-top: 22px;
        border-top: 1px solid var(--line);
    }

    .post-tagline .taglabel {
        margin-right: 6px;
        color: var(--brand-deep);
    }

    .tag-chip {
        display: inline-block;
        background: var(--paper-2);
        border: 1px solid rgba(29, 91, 69, 0.15);
        color: var(--brand-deep);
        border-radius: 999px;
        font-size: 0.78rem;
        padding: 5px 14px;
        transition: background var(--ease), border-color var(--ease);
    }

    .tag-chip:hover {
        background: var(--brand-deep);
        color: #fff;
    }

    /* 相关栏目 */
    .related-section {
        width: min(1180px, 92%);
        margin: 0 auto;
        padding: 24px 0 20px;
    }

    .rel-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 24px;
        margin-bottom: 22px;
    }

    .rel-head h2 {
        font-size: clamp(1.2rem, 2.2vw, 1.7rem);
        letter-spacing: -0.02em;
    }

    .rel-head .into {
        color: var(--ink-muted);
        font-size: 0.9rem;
    }

    .relation-grid {
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 16px;
    }

    .relation-card {
        background: #fffaf3;
        border: 1px solid var(--line);
        border-radius: 14px;
        padding: 24px 22px;
        transition: background var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease);
        display: flex;
        flex-direction: column;
        gap: 14px;
        position: relative;
    }

    .relation-card:hover {
        border-color: rgba(29, 91, 69, 0.25);
        background: #FFFFFF;
        box-shadow: var(--shadow-hover);
        transform: translateY(-2px);
    }

    .relation-card .rcode {
        font-size: 0.76rem;
        font-weight: 700;
        color: var(--accent);
        letter-spacing: 0.05em;
    }

    .relation-card h3 {
        font-size: 1.04rem;
        color: var(--ink-strong);
        line-height: 1.4;
    }

    .relation-card p {
        margin: 0;
        font-size: 0.84rem;
        color: var(--ink-muted);
        flex: 1;
        line-height: 1.65;
    }

    .relation-card .relgo {
        display: inline-flex;
        align-items: center;
        justify-content: space-between;
        margin-top: 12px;
        color: var(--brand-primary);
        font-weight: 600;
        font-size: 0.84rem;
        gap: 8px;
    }

    .relation-card .arrow {
        transition: transform var(--ease);
    }

    .relation-card:hover .arrow {
        transform: translateX(4px);
    }

    @media (max-width: 1024px) {
        .relation-grid {
            grid-template-columns: repeat(2, minmax(0, 1fr));
            row-gap: 18px;
        }
    }

    @media (max-width: 900px) {
        .article-banner {
            min-height: 280px;
        }
        .reading-column {
            padding: 28px;
        }
    }

    @media (max-width: 640px) {
        .article-banner-inner {
            padding-top: 44px;
            padding-bottom: 50px;
        }
        .article-banner {
            min-height: 240px;
        }
        .crumb {
            font-size: 0.78rem;
            margin-bottom: 18px;
        }
        .post-cat {
            margin-bottom: 14px;
        }
        .article-meta {
            gap: 10px 16px;
            font-size: 0.8rem;
        }
        .reading-column {
            padding: 22px 18px;
            border-radius: 12px;
            margin-top: -20px;
        }
        .prose-body {
            font-size: 0.98rem;
            line-height: 1.85;
        }
        .relation-grid {
            grid-template-columns: 1fr;
        }
        .rel-head {
            flex-direction: column;
            align-items: flex-start;
            gap: 6px;
        }
        .article-body-wrap {
            margin-top: -18px;
        }
    }

    /* 未找到状态 */
    .notfound-card {
        display: block;
        background: #fffdf8;
        border: 1px solid var(--line);
        border-radius: 20px;
        padding: clamp(24px, 5vw, 60px);
        text-align: center;
    }

    .notfound-card .nfcode {
        font-size: 0.86rem;
        letter-spacing: 0.1em;
        color: var(--accent);
        font-weight: 700;
        margin-bottom: 12px;
    }

    .notfound-card h1 {
        font-size: clamp(1.6rem, 3vw, 2.4rem);
        margin-bottom: 14px;
    }

    .notfound-card p {
        color: var(--ink-muted);
        max-width: 420px;
        margin: 0 auto 24px;
    }

    .notfound-actions {
        display: flex;
        justify-content: center;
        gap: 12px;
        flex-wrap: wrap;
    }

    /* Footer */
    .footer {
        background: var(--footer-bg);
        color: var(--footer-text);
        margin-top: 70px;
        padding: 70px 0 38px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.8fr 1fr 1fr;
        gap: 40px 60px;
        padding-bottom: 48px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-brand .brand-name {
        color: #ffffff;
        margin-bottom: 14px;
    }

    .footer .desc {
        max-width: 460px;
        font-size: 0.88rem;
        line-height: 1.75;
        margin-top: 18px;
        color: #9bada5;
    }

    .footer h4 {
        color: #fff;
        font-size: 0.94rem;
        font-weight: 600;
        margin-bottom: 20px;
        letter-spacing: 0.03em;
    }

    .footer ul {
        list-style: none;
        display: grid;
        gap: 11px;
    }

    .footer-link {
        font-size: 0.82rem;
        color: var(--footer-text);
        transition: color var(--ease), padding-left var(--ease);
        line-height: 1.4;
    }

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

    .footer-bottom {
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 16px 30px;
        padding-top: 28px;
        color: #70847a;
        font-size: 0.76rem;
        line-height: 1.5;
    }

    .footer-bottom p {
        margin: 0;
    }

    @media (max-width: 980px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 40px 30px;
        }

        .footer-brand {
            grid-column: span 2;
        }
    }

    @media (max-width: 600px) {
        .footer .brand-note {
            white-space: normal;
            border-top: none;
            margin-top: 0;
            padding-top: 0;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            row-gap: 34px;
        }
        .footer-brand {
            grid-column: span 1;
        }
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
        }
    }

    @media (prefers-reduced-motion: reduce) {
        * {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
            scroll-behavior: auto !important;
        }
    }

/* roulang page: category2 */
:root {
    --paper: #F5F0E7;
    --paper-2: #EDE5D9;
    --paper-deep: #E4DACC;
    --ink-strong: #15231D;
    --ink-body: #3A4640;
    --ink-muted: #6A746E;
    --line: rgba(21, 35, 29, 0.12);
    --brand-deep: #103C30;
    --brand-primary: #1D5B45;
    --brand-light: #3E7C65;
    --accent: #DF6A2F;
    --accent-deep: #B94D23;
    --accent-soft: #F9E6DC;
    --footer-bg: #10211B;
    --footer-text: #AAB8B1;
    --radius-lg: 22px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow-soft: 0 8px 30px rgba(16, 35, 26, 0.08);
  }

  * {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    background: var(--paper);
    color: var(--ink-body);
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }
  a {
    text-decoration: none;
    color: inherit;
  }
  img {
    max-width: 100%;
    display: block;
  }
  input,
  button,
  summary {
    font-family: inherit;
  }
  h1,
  h2,
  h3,
  h4 {
    color: var(--ink-strong);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin: 0 0 .6em;
  }
  ul {
    margin: 0;
    padding: 0;
    list-style: none;
  }
  p {
    margin: 0 0 1em;
  }

  :focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
  }

  @media (prefers-reduced-motion: reduce) {
    * {
      animation: none !important;
      transition: none !important;
      scroll-behavior: auto !important;
    }
  }

  .container-x {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .section {
    padding: 88px 0;
  }
  .section-head {
    max-width: 860px;
    margin: 0 0 44px;
  }
  .section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-deep);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .16em;
    text-transform: uppercase;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 7px;
    margin-bottom: 16px;
  }
  .section h2 {
    font-size: clamp(1.85rem, 3.6vw, 2.9rem);
    letter-spacing: -0.025em;
    margin-bottom: 14px;
  }
  .section-intro {
    color: var(--ink-muted);
    font-size: 1.05rem;
    max-width: 720px;
    line-height: 1.9;
    margin: 0;
  }

  /* header */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(245, 240, 231, .97);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
  }
  .topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
  }
  .top-right {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    line-height: 1.1;
  }
  .brand-name {
    display: inline-block;
    font-size: 23px;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--ink-strong);
    line-height: 1.2;
  }
  .brand-name em {
    font-style: normal;
    color: var(--accent-deep);
  }
  .brand-note {
    display: block;
    font-size: 12px;
    color: var(--ink-muted);
    letter-spacing: .04em;
    margin-top: 3px;
    font-weight: 400;
  }

  .search-form {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 240px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .55);
    border-radius: 999px;
    padding: 8px 14px;
    transition: border-color .2s ease, box-shadow .2s ease;
  }
  .search-form:focus-within {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(29, 91, 69, .08);
  }
  .search-form input {
    border: 0;
    background: transparent;
    outline: none;
    width: 100%;
    font-size: 14px;
    color: var(--ink-strong);
  }
  .search-form input::placeholder {
    color: #6A746E;
  }

  .navrow {
    border-top: 1px solid var(--line);
    background: rgba(237, 229, 217, .42);
  }
  .navtabs {
    display: flex;
    align-items: center;
    gap: 6px;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
    padding: 6px 0;
  }
  .no-scrollbar::-webkit-scrollbar {
    display: none;
  }
  .navtab {
    display: inline-flex;
    align-items: center;
    height: 46px;
    padding: 0 18px;
    border-radius: 999px;
    font-size: .92rem;
    font-weight: 600;
    color: var(--ink-body);
    transition: background .2s ease, color .2s ease;
  }
  .navtab:hover {
    background: var(--paper-deep);
    color: var(--brand-deep);
  }
  .navtab.active {
    background: var(--brand-deep);
    color: #F5F0E7;
  }

  /* buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border-radius: 999px;
    line-height: 1.2;
    font-weight: 700;
    border: 1px solid transparent;
    text-decoration: none;
    cursor: pointer;
    transition: background .22s ease, color .22s ease, border-color .22s ease, box-shadow .22s ease, transform .22s ease;
  }
  .btn-primary {
    background: var(--accent);
    color: #15231D;
    padding: 12px 22px;
  }
  .btn-primary:hover {
    background: var(--accent-deep);
    color: #fff;
    box-shadow: 0 8px 20px rgba(185, 77, 35, .18);
    transform: translateY(-1px);
  }
  .btn-primary:active {
    transform: translateY(0);
    background: #9d3e1b;
  }
  .btn-outline {
    border-color: rgba(21, 35, 29, .35);
    color: var(--ink-strong);
    background: transparent;
    padding: 12px 20px;
  }
  .btn-outline:hover {
    background: var(--brand-deep);
    border-color: var(--brand-deep);
    color: #fff;
  }
  .btn-outline-light {
    border-color: rgba(245, 240, 231, .5);
    color: #F5F0E7;
    background: transparent;
    padding: 12px 20px;
  }
  .btn-outline-light:hover {
    background: #fff;
    border-color: #fff;
    color: var(--brand-deep);
  }
  .btn-lg {
    padding: 15px 28px;
    font-size: 1rem;
  }
  .btn-sm {
    padding: 8px 16px;
    font-size: .88rem;
  }

  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 600;
    color: rgba(245, 240, 231, .85);
    border-bottom: 1px solid rgba(245, 240, 231, .3);
    transition: color .2s ease, border-color .2s ease;
  }
  .text-link:hover {
    color: #fff;
    border-color: #fff;
  }

  /* hero */
  .page-hero-wrap {
    padding: 48px 0 24px;
  }
  .hero-cat {
    position: relative;
    border-radius: 26px;
    overflow: hidden;
    color: #F5F0E7;
    background-image: linear-gradient(105deg, rgba(12, 36, 30, .95), rgba(16, 60, 48, .86), rgba(25, 78, 59, .55)),
      url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
    padding: 58px 56px;
    min-height: 520px;
    display: flex;
    align-items: center;
  }
  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 760px;
  }
  .hero-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(245, 240, 231, .7);
    font-size: .82rem;
    margin-bottom: 22px;
  }
  .hero-breadcrumb a {
    transition: color .2s;
  }
  .hero-breadcrumb a:hover {
    color: #fff;
  }
  .hero-cat .eyebrow {
    display: inline-flex;
    border: 1px solid rgba(255, 255, 255, .35);
    padding: 5px 14px;
    border-radius: 999px;
    font-size: .76rem;
    letter-spacing: .14em;
    color: rgba(245, 240, 231, .9);
    background: rgba(16, 33, 27, .2);
  }
  .hero-cat h1 {
    color: #fff;
    font-size: clamp(2.3rem, 5vw, 4rem);
    line-height: 1.12;
    letter-spacing: -0.03em;
    margin: 18px 0 16px;
  }
  .hero-lead {
    color: rgba(245, 240, 231, .82);
    font-size: 1.12rem;
    line-height: 1.9;
    max-width: 660px;
    margin: 0 0 30px;
  }
  .hero-cta-row {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
  }
  .hero-notes {
    display: flex;
    gap: 30px;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 44px;
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, .14);
    font-size: .88rem;
    color: rgba(245, 240, 231, .75);
  }
  .hero-notes span {
    position: relative;
    padding-left: 16px;
  }
  .hero-notes span::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    transform: translateY(-50%) rotate(45deg);
    background: var(--accent);
  }

  /* feature */
  .feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  .feature-card {
    background: rgba(255, 255, 255, .45);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 28px 22px;
    transition: background .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease;
  }
  .feature-card:hover {
    background: rgba(255, 255, 255, .8);
    border-color: rgba(16, 60, 48, .28);
    box-shadow: var(--shadow-soft);
    transform: translateY(-2px);
  }
  .feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--accent-soft);
    color: var(--accent-deep);
    display: grid;
    place-items: center;
    font-size: 20px;
    margin-bottom: 16px;
  }
  .feature-card h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
  }
  .feature-card p {
    color: var(--ink-muted);
    font-size: .93rem;
    line-height: 1.75;
    margin: 0;
  }

  /* levels */
  .levels-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1fr;
    gap: 20px;
    align-items: stretch;
  }
  .level-card {
    background: rgba(255, 255, 255, .58);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: box-shadow .25s ease, transform .25s ease;
  }
  .level-card:hover {
    box-shadow: var(--shadow-soft);
    transform: translateY(-2px);
  }
  .level-featured {
    background: var(--brand-deep);
    border-color: var(--brand-deep);
    color: #F5F0E7;
  }
  .level-featured h3,
  .level-featured .level-amount,
  .level-featured .level-people {
    color: #F5F0E7;
  }
  .level-featured .level-card:hover {
    box-shadow: 0 22px 50px rgba(16, 60, 48, .18);
  }
  .level-dark {
    background: #102820;
    border-color: #102820;
    color: rgba(245, 240, 231, .78);
  }
  .level-dark h3,
  .level-dark .level-people {
    color: #F5F0E7;
  }
  .level-tag {
    display: inline-block;
    align-self: flex-start;
    font-size: .74rem;
    font-weight: 700;
    letter-spacing: .08em;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--paper-deep);
    color: var(--brand-deep);
    margin-bottom: 18px;
  }
  .level-featured .level-tag {
    background: var(--accent);
    color: #15231D;
  }
  .level-dark .level-tag {
    background: rgba(245, 240, 231, .12);
    color: #F5F0E7;
  }
  .level-amount {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--ink-strong);
    letter-spacing: -0.02em;
    margin-bottom: 10px;
  }
  .level-people {
    font-size: .88rem;
    color: var(--ink-muted);
    border-bottom: 1px solid var(--line);
    padding-bottom: 18px;
    margin-bottom: 18px;
  }
  .level-featured .level-people,
  .level-dark .level-people {
    border-bottom-color: rgba(255, 255, 255, .16);
  }
  .level-list {
    margin-bottom: 26px;
    flex: 1;
  }
  .level-list li {
    position: relative;
    padding: 6px 0 6px 26px;
    font-size: .94rem;
    line-height: 1.65;
  }
  .level-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 9px;
    font-weight: 800;
    color: var(--accent);
  }
  .level-dark .level-list li::before {
    color: #E9915A;
  }
  .level-featured .level-list li::before {
    color: #E9915A;
  }

  /* split card */
  .split-card {
    display: grid;
    grid-template-columns: 1.08fr 1fr;
    border: 1px solid var(--line);
    border-radius: 26px;
    overflow: hidden;
    background: rgba(255, 255, 255, .4);
  }
  .split-img {
    min-height: 320px;
    object-fit: cover;
    width: 100%;
    height: 100%;
  }
  .split-body {
    padding: 40px 44px 36px;
  }
  .split-body h2 {
    font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  }
  .split-note {
    color: var(--ink-muted);
    margin: 0 0 24px;
    line-height: 1.9;
  }
  .reading-list {
    border-top: 1px solid var(--line);
  }
  .reading-list li {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    border-bottom: 1px solid var(--line);
    padding: 14px 0;
    transition: background .2s ease, padding-left .2s ease;
  }
  .reading-list li:hover {
    background: rgba(237, 229, 217, .5);
    padding-left: 8px;
  }
  .reading-icon {
    color: var(--accent-deep);
    font-size: 18px;
    line-height: 1.4;
  }
  .reading-list strong {
    display: block;
    color: var(--ink-strong);
    font-size: .95rem;
    line-height: 1.4;
  }
  .reading-list small {
    color: var(--ink-muted);
    font-size: .84rem;
    line-height: 1.6;
    display: block;
  }

  /* table */
  .table-scroll {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(255, 255, 255, .42);
  }
  .matrix {
    width: 100%;
    min-width: 720px;
    border-collapse: collapse;
  }
  .matrix th,
  .matrix td {
    padding: 16px 18px;
    text-align: center;
    border-bottom: 1px solid var(--line);
    vertical-align: middle;
    font-size: .92rem;
  }
  .matrix th {
    background: var(--paper-deep);
    color: var(--ink-strong);
    font-size: .9rem;
    letter-spacing: .04em;
  }
  .matrix th:first-child,
  .matrix td:first-child {
    text-align: left;
    width: 34%;
    color: var(--ink-strong);
    font-weight: 600;
  }
  .matrix tbody tr:last-child th,
  .matrix tbody tr:last-child td {
    border-bottom: 0;
  }
  .matrix tbody tr:hover {
    background: rgba(237, 229, 217, .5);
  }
  .matrix thead .col-hot {
    background: var(--brand-deep);
    color: #F5F0E7;
  }
  .matrix tbody .col-hot {
    background: var(--accent-soft);
  }
  .matrix tbody tr:hover .col-hot {
    background: #F4DDD0;
  }
  .compare-note {
    color: var(--ink-muted);
    font-size: .84rem;
    margin-top: 14px;
  }

  /* audience */
  .audience-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .audience-card {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 26px 24px;
    background: rgba(255, 255, 255, .45);
    transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
  }
  .audience-card:hover {
    background: #fff;
    box-shadow: var(--shadow-soft);
    transform: translateY(-2px);
  }
  .audience-card .no {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent-deep);
    line-height: 1;
    display: block;
    margin-bottom: 20px;
  }
  .audience-card h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
  }
  .audience-card p {
    margin: 0;
    color: var(--ink-muted);
    font-size: .93rem;
    line-height: 1.75;
  }

  /* steps */
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    counter-reset: step;
  }
  .step-card {
    border-radius: 20px;
    background: rgba(255, 255, 255, .45);
    border: 1px solid var(--line);
    padding: 26px 22px;
    position: relative;
    transition: background .2s ease;
  }
  .step-card:hover {
    background: #fff;
  }
  .step-num {
    color: var(--accent-deep);
    font-weight: 800;
    font-size: 1.7rem;
    line-height: 1;
    display: block;
    margin-bottom: 22px;
  }
  .step-card h3 {
    font-size: 1::rem;
    margin-bottom: 8px;
  }
  .step-card p {
    margin: 0;
    color: var(--ink-muted);
    font-size: .9rem;
    line-height: 1.75;
  }

  /* FAQ */
  .faq-list {
    max-width: 860px;
    margin: 0 auto;
    border-top: 1px solid var(--line);
  }
  .faq-item {
    border-bottom: 1px solid var(--line);
  }
  .faq-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    padding: 22px 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 650;
    color: var(--ink-strong);
    list-style: none;
    transition: color .2s ease, padding-left .2s ease;
    position: relative;
  }
  .faq-item summary::-webkit-details-marker {
    display: none;
  }
  .faq-item summary::after {
    content: "+";
    font-size: 22px;
    font-weight: 300;
    color: var(--accent-deep);
    line-height: 1;
    transition: transform .25s ease, color .25s ease;
  }
  .faq-item[open] summary {
    color: var(--brand-deep);
    padding-left: 6px;
  }
  .faq-item[open] summary::after {
    content: "−";
    transform: rotate(180deg);
    color: var(--accent);
  }
  .faq-item summary:hover {
    color: var(--brand-deep);
  }
  .faq-answer {
    padding: 0 40px 22px 6px;
    color: var(--ink-muted);
    line-height: 1.95;
    font-size: .95rem;
  }
  .faq-answer p:last-child {
    margin-bottom: 0;
  }

  /* cta */
  .cta-band {
    border-radius: 28px;
    background-image: linear-gradient(118deg, rgba(12, 36, 30, .96), rgba(20, 70, 53, .88)),
      url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    color: #F5F0E7;
    padding: 72px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .cta-band h2 {
    color: #fff;
    font-size: clamp(1.7rem, 3.4vw, 2.7rem);
    max-width: 820px;
    margin: 0 auto 14px;
  }
  .cta-band p {
    color: rgba(245, 240, 231, .72);
    max-width: 680px;
    margin: 0 auto 30px;
    font-size: 1.02rem;
  }
  .cta-note {
    display: block;
    margin-top: 18px;
    color: rgba(245, 240, 231, .5);
    font-size: .8rem;
  }

  /* footer */
  .footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 64px 0 28px;
    margin-top: 88px;
  }
  .footer .brand-name {
    color: #fff;
  }
  .footer .brand-note {
    color: #94A39B;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1.2fr 1.2fr;
    gap: 40px;
    padding-bottom: 42px;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
  }
  .footer-brand .desc {
    margin: 18px 0 0;
    color: #91A29B;
    max-width: 500px;
    font-size: .92rem;
    line-height: 1.9;
  }
  .footer h4 {
    color: #fff;
    font-size: 1rem;
    letter-spacing: .02em;
    margin-bottom: 18px;
  }
  .footer ul li + li {
    margin-top: 8px;
  }
  .footer-link {
    color: var(--footer-text);
    font-size: .9rem;
    transition: color .2s ease, padding-left .2s ease;
  }
  .footer-link:hover {
    color: #fff;
    padding-left: 4px;
  }
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    padding-top: 22px;
    font-size: .82rem;
    color: #81918A;
  }
  .footer-bottom p {
    margin: 0;
  }

  /* responsive */
  @media (max-width: 1024px) {
    .feature-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .levels-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .level-featured {
      order: -1;
      grid-column: span 2;
    }
    .audience-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .steps-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .split-body {
      padding: 32px 28px;
    }
  }

  @media (max-width: 768px) {
    .section {
      padding: 64px 0;
    }
    .container-x {
      padding-left: 18px;
      padding-right: 18px;
    }
    .search-form {
      display: none;
      width: auto;
    }
    .topbar {
      padding: 12px 0;
    }
    .brand-name {
      font-size: 20px;
    }
    .brand-note {
      display: none;
    }
    .navtab {
      padding: 0 15px;
      height: 46px;
    }
    .hero-cat {
      min-height: auto;
      padding: 42px 28px;
    }
    .hero-notes {
      gap: 12px 22px;
      margin-top: 30px;
    }
    .feature-grid {
      grid-template-columns: 1fr;
    }
    .feature-card {
      padding: 24px 20px;
    }
    .levels-grid {
      grid-template-columns: 1fr;
    }
    .level-featured {
      order: 0;
      grid-column: span 1;
    }
    .split-card {
      grid-template-columns: 1fr;
    }
    .split-img {
      min-height: 220px;
      height: 260px;
    }
    .split-body {
      padding: 28px 22px;
    }
    .audience-grid {
      grid-template-columns: 1fr;
    }
    .steps-grid {
      grid-template-columns: 1fr;
    }
    .cta-band {
      padding: 52px 24px;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 32px;
    }
    .footer-bottom {
      flex-direction: column;
    }
    .faq-answer {
      padding-right: 8px;
    }
  }

  @media (max-width: 480px) {
    .brand-logo svg {
      width: 28px;
    }
    .brand-name {
      font-size: 17px;
    }
    .cta-mini {
      padding: 7px 12px;
      font-size: .8rem;
    }
    .hero-cat {
      padding: 36px 20px;
      border-radius: 20px;
    }
    .hero-breadcrumb {
      font-size: .76rem;
    }
    .level-card,
    .audience-card,
    .step-card {
      padding: 24px 18px;
    }
  }

/* roulang page: category3 */
:root {
    --paper: #F5F0E7;
    --paper-2: #EDE5D9;
    --paper-deep: #E4DACC;
    --ink-strong: #15231D;
    --ink-body: #3A4640;
    --ink-muted: #6A746E;
    --line: rgba(21, 35, 29, 0.12);
    --brand-deep: #103C30;
    --brand-primary: #1D5B45;
    --brand-light: #3E7C65;
    --accent: #DF6A2F;
    --accent-deep: #B94D23;
    --accent-soft: #F9E6DC;
    --footer-bg: #10211B;
    --footer-text: #AAB8B1;
    --font-body: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", sans-serif;
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
    scroll-padding-top: 118px;
  }

  body {
    margin: 0;
    background: var(--paper);
    color: var(--ink-body);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  body.no-scroll {
    overflow: hidden;
  }

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

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

  a:hover {
    color: inherit;
  }

  button,
  input,
  textarea,
  select {
    font-family: inherit;
    font-size: 1rem;
    border-radius: 0;
  }

  h1, h2, h3, h4, h5 {
    margin: 0;
    color: var(--ink-strong);
    font-weight: 800;
    line-height: 1.22;
    letter-spacing: -0.02em;
    text-wrap: balance;
  }

  p {
    margin: 0;
  }

  ul, ol {
    margin: 0;
    padding: 0;
  }

  ::selection {
    background: var(--accent);
    color: #fff;
  }

  :focus-visible {
    outline: 3px solid var(--accent-deep);
    outline-offset: 3px;
    border-radius: 6px;
  }

  .container-x {
    width: 100%;
    max-width: 1280px;
    margin-inline: auto;
    padding-inline: clamp(20px, 4vw, 48px);
  }

  .text-accent {
    color: var(--accent);
  }

  .text-brand {
    color: var(--brand-primary);
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(245, 240, 231, 0.9);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
  }

  .header-line {
    border-bottom: 1px solid rgba(21, 35, 29, 0.07);
  }

  .topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding-block: 12px;
    min-height: 76px;
  }

  .brand-logo {
    display: inline-flex;
    flex: 1 1 auto;
    font-weight: 800;
    min-width: 0;
  }

  .brand-logo > span {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
    min-width: 0;
  }

  .brand-name {
    font-size: 1.3rem;
    line-height: 1.15;
    font-weight: 900;
    color: var(--ink-strong);
    letter-spacing: -0.02em;
    white-space: nowrap;
  }

  .brand-name em {
    font-style: normal;
    color: var(--accent-deep);
  }

  .brand-note {
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--ink-muted);
    white-space: nowrap;
  }

  .top-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    flex: 0 0 auto;
  }

  .search-form {
    display: flex;
    align-items: center;
    gap: 8px;
    width: min(270px, 24vw);
    height: 42px;
    padding: 0 15px;
    background: #fffdf9;
    border: 1px solid var(--line);
    border-radius: 999px;
    transition: border-color .25s ease, box-shadow .25s ease;
  }

  .search-form:focus-within {
    border-color: var(--brand-deep);
    box-shadow: 0 0 0 4px rgba(29, 91, 69, 0.12);
  }

  .search-form input {
    flex: 1;
    min-width: 0;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--ink-strong);
    font-size: 0.9rem;
  }

  .search-form input::placeholder {
    color: var(--ink-muted);
    opacity: .8;
  }

  .navrow {
    position: relative;
  }

  .navtabs {
    display: flex;
    align-items: center;
    gap: 6px;
    overflow-x: auto;
    scrollbar-width: none;
    padding-top: 10px;
    padding-bottom: 12px;
    white-space: nowrap;
  }

  .navtabs::-webkit-scrollbar {
    display: none;
    height: 0;
  }

  .navtab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 21px;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--ink-strong);
    line-height: 1;
    transition: background .25s ease, color .25s ease, transform .2s ease;
  }

  .navtab:hover {
    background: var(--paper-deep);
  }

  .navtab:active {
    transform: scale(0.97);
  }

  .navtab.active {
    background: var(--brand-deep);
    color: var(--paper);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 0;
    border-radius: 10px;
    min-height: 48px;
    padding: 0 24px;
    font-weight: 800;
    line-height: 1;
    cursor: pointer;
    text-decoration: none;
    transition: background .25s ease, border-color .25s ease, color .25s ease, box-shadow .25s ease, transform .2s ease;
  }

  .btn-sm {
    min-height: 38px;
    padding: 0 17px;
    font-size: .88rem;
  }

  .btn-primary {
    background: var(--accent);
    color: #fff;
  }

  .btn-primary:hover {
    background: var(--accent-deep);
    box-shadow: 0 10px 26px rgba(185, 77, 35, 0.28);
    transform: translateY(-1px);
  }

  .btn-primary:active {
    transform: translateY(1px);
  }

  .btn-outline {
    border: 1px solid var(--line);
    background: transparent;
    color: var(--ink-strong);
  }

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

  .btn-line-light {
    border: 1px solid rgba(245, 240, 231, 0.58);
    background: transparent;
    color: #fff;
  }

  .btn-line-light:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
  }

  .cta-mini {
    border-radius: 999px;
  }

  /* Hero */
  .hero {
    position: relative;
    overflow: hidden;
    color: #fff;
    background-position: center;
    background-size: cover;
  }

  .hero-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    min-height: clamp(540px, 76vh, 720px);
    padding-block: clamp(72px, 9vw, 132px);
  }

  .hero h1 {
    color: #fff;
    font-size: clamp(2.5rem, 5.6vw, 4.6rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    max-width: 900px;
    line-height: 1.1;
  }

  .hero h1 .hero-hl {
    color: var(--accent);
  }

  .hero .hero-lead {
    margin-top: 26px;
    max-width: 660px;
    font-size: clamp(1.04rem, 1.5vw, 1.2rem);
    line-height: 1.9;
    color: rgba(245, 240, 231, 0.88);
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.86rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    color: var(--accent-deep);
    text-transform: uppercase;
  }

  .eyebrow::before {
    content: "";
    width: 28px;
    height: 2px;
    background: var(--accent);
    display: inline-block;
    border-radius: 2px;
  }

  .eyebrow-light {
    color: #f4c4aa;
  }

  .eyebrow-light::before {
    background: rgba(223, 106, 47, 0.9);
  }

  .hero-points {
    display: flex;
    flex-wrap: wrap;
    gap: 18px 34px;
    margin-top: 34px;
  }

  .hero-points li {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: rgba(245, 240, 231, 0.88);
  }

  .hero-points li strong {
    font-size: 1.35rem;
    font-weight: 900;
    color: #fff;
  }

  .hero-points li em {
    font-style: normal;
    color: var(--accent);
    font-weight: 800;
  }

  .hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 42px;
  }

  .crumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 28px;
    color: rgba(245, 240, 231, 0.72);
    font-size: 0.85rem;
  }

  .crumb a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: inherit;
    transition: color .2s ease;
  }

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

  .crumb i {
    font-style: normal;
    color: rgba(255, 255, 255, 0.4);
  }

  .crumb span {
    color: #fff;
  }

  /* Sections */
  .section {
    padding-block: clamp(68px, 8vw, 130px);
  }

  .section-tint {
    background: var(--paper-2);
  }

  .section-deep {
    background: var(--brand-deep);
    color: rgba(245, 240, 231, 0.86);
  }

  .section-head {
    max-width: 780px;
    margin-bottom: 52px;
  }

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

  .section-head h2 {
    margin-top: 18px;
    font-size: clamp(1.8rem, 3.6vw, 2.9rem);
    line-height: 1.2;
  }

  .section-head .section-desc {
    margin-top: 18px;
    color: var(--ink-muted);
    font-size: 1rem;
    line-height: 1.9;
    max-width: 680px;
  }

  .section-head.center .section-desc {
    margin-inline: auto;
  }

  .split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: clamp(32px, 6vw, 84px);
  }

  .split-copy .split-sub {
    margin-top: 26px;
    color: var(--ink-muted);
    max-width: 540px;
    line-height: 1.9;
  }

  .feature-list {
    margin-top: 28px;
    max-width: 560px;
  }

  .feature-list li {
    list-style: none;
    display: grid;
    grid-template-columns: 34px 1fr;
    gap: 14px;
    align-items: baseline;
    padding-block: 16px;
    border-top: 1px solid var(--line);
  }

  .feature-list li:last-child {
    border-bottom: 1px solid var(--line);
  }

  .feature-list .li-num {
    font-size: 0.8rem;
    font-weight: 900;
    color: var(--accent-deep);
  }

  .feature-list strong {
    display: block;
    font-size: 1rem;
    color: var(--ink-strong);
  }

  .feature-list p {
    margin-top: 4px;
    font-size: 0.9rem;
    color: var(--ink-muted);
    line-height: 1.7;
  }

  .figure-card {
    position: relative;
    overflow: hidden;
    border-radius: 22px;
    background: var(--brand-deep);
    box-shadow: 0 20px 60px rgba(16, 35, 26, 0.12);
  }

  .figure-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .7s cubic-bezier(.2, .8, .2, 1);
  }

  .figure-card:hover img {
    transform: scale(1.03);
  }

  .figure-card figcaption {
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 16px;
    padding: 14px 16px;
    background: rgba(16, 33, 27, 0.72);
    backdrop-filter: blur(8px);
    border-radius: 14px;
    color: #fff;
    font-size: 0.92rem;
    border: 1px solid rgba(255, 255, 255, 0.15);
  }

  /* steps */
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;
  }

  .step-card {
    position: relative;
    overflow: hidden;
    min-height: 224px;
    padding: 26px 20px 24px;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 16px;
    transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;
  }

  .step-card:hover {
    border-color: var(--brand-deep);
    box-shadow: 0 14px 34px rgba(21, 35, 29, 0.1);
    transform: translateY(-2px);
  }

  .step-card .step-index {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--brand-deep);
    color: var(--paper);
    font-weight: 900;
    font-size: 0.95rem;
    margin-bottom: 20px;
  }

  .step-card h3 {
    font-size: 1.14rem;
    line-height: 1.45;
    margin-bottom: 10px;
  }

  .step-card p {
    color: var(--ink-muted);
    font-size: 0.9rem;
    line-height: 1.8;
  }

  .step-card::after {
    content: "";
    position: absolute;
    top: -20px;
    right: -12px;
    width: 88px;
    height: 88px;
    border-radius: 50%;
    background: rgba(223, 106, 47, 0.06);
    transition: background .3s ease;
  }

  .step-card:hover::after {
    background: rgba(223, 106, 47, 0.12);
  }

  /* Column guide */
  .guide-grid {
    display: grid;
    grid-template-columns: minmax(260px, 0.95fr) 1.35fr;
    gap: clamp(22px, 4vw, 56px);
    align-items: stretch;
  }

  .guide-feature {
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--brand-deep);
    border-radius: 22px;
    color: #fff;
  }

  .guide-feature .gf-media {
    overflow: hidden;
  }

  .guide-feature .gf-media img {
    width: 100%;
    height: 230px;
    object-fit: cover;
    opacity: .9;
  }

  .guide-feature .gf-text {
    padding: 26px 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
    justify-content: space-between;
    gap: 18px;
  }

  .guide-feature .gf-text p {
    color: rgba(245, 240, 231, 0.75);
    line-height: 1.9;
    font-size: .92rem;
  }

  .gf-tag {
    display: inline-flex;
    align-self: flex-start;
    align-items: center;
    gap: 8px;
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: #f5cbb8;
  }

  .gf-tag::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
  }

  .guide-rows {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .guide-row {
    display: grid;
    grid-template-columns: 50px 1fr 20px;
    gap: 16px;
    align-items: center;
    padding: 20px 22px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid var(--line);
    border-radius: 14px;
    transition: background .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease;
  }

  .guide-row + .guide-row {
    margin-top: 12px;
  }

  .guide-row:hover {
    background: #fff;
    border-color: var(--brand-deep);
    box-shadow: 0 12px 30px rgba(16, 35, 27, 0.1);
    transform: translateY(-2px);
  }

  .guide-row.is-current {
    border-color: var(--brand-deep);
    background: var(--brand-deep);
    color: #fff;
  }

  .guide-row .guide-index {
    display: grid;
    place-items: center;
    width: 50px;
    height: 50px;
    background: var(--paper-deep);
    border-radius: 12px;
    font-weight: 900;
    color: var(--brand-deep);
    transition: background .25s ease, color .25s ease;
  }

  .guide-row.is-current .guide-index {
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
  }

  .guide-row:hover .guide-index {
    background: var(--accent);
    color: #fff;
  }

  .guide-row .g-title {
    display: block;
    font-weight: 900;
    color: var(--ink-strong);
  }

  .guide-row.is-current .g-title {
    color: #fff;
  }

  .guide-row .g-sub {
    display: block;
    margin-top: 4px;
    font-size: 0.86rem;
    color: var(--ink-muted);
  }

  .guide-row.is-current .g-sub {
    color: rgba(245, 240, 231, 0.78);
  }

  .guide-row .arrow {
    font-weight: 800;
    color: var(--accent-deep);
    transition: transform .25s ease;
  }

  .guide-row.is-current .arrow {
    color: #fff;
    opacity: 0.8;
  }

  .guide-row:hover .arrow {
    transform: translateX(5px);
  }

  /* Membership mini */
  .levels-wrap {
    max-width: 1120px;
    margin-inline: auto;
  }

  .levels-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: stretch;
  }

  .level-card {
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 30px 26px 28px;
    border-radius: 20px;
    border: 1px solid var(--line);
    background: var(--paper);
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  }

  .level-card:hover {
    transform: translateY(-3px);
    border-color: var(--brand-deep);
    box-shadow: 0 18px 46px rgba(16, 35, 27, 0.12);
  }

  .level-1 {
    border-color: var(--line);
    background: rgba(255, 255, 255, 0.72);
  }

  .level-2 {
    border-color: rgba(29, 91, 69, 0.5);
    background: #fff;
  }

  .level-3 {
    border-color: var(--brand-deep);
    background: var(--brand-deep);
    color: #fff;
  }

  .level-card .lv-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
  }

  .level-card .lv-rank {
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    color: var(--accent-deep);
  }

  .level-3 .lv-rank {
    color: #f4a27c;
  }

  .level-card h3 {
    font-size: 1.4rem;
    margin: 8px 0 10px;
  }

  .level-3 h3 {
    color: #fff;
  }

  .level-card .lv-desc {
    font-size: 0.9rem;
    line-height: 1.85;
    color: var(--ink-muted);
    margin-top: 4px;
  }

  .level-3 .lv-desc {
    color: rgba(245, 240, 231, 0.76);
  }

  .level-card .lv-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
  }

  .tag-mini {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 11px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    background: var(--paper-deep);
    color: var(--ink-body);
  }

  .level-3 .tag-mini {
    background: rgba(255, 255, 255, 0.14);
    color: #f7f1ea;
  }

  /* Scenario */
  .scenario-list {
    max-width: 920px;
    margin-inline: auto;
  }

  .scenario-row {
    display: grid;
    grid-template-columns: 84px 1fr auto;
    gap: 18px 26px;
    align-items: center;
    padding-block: 26px;
    border-top: 1px solid var(--line);
  }

  .scenario-row:last-child {
    border-bottom: 1px solid var(--line);
  }

  .scenario-row .sc-no {
    font-size: 0.88rem;
    font-weight: 900;
    color: var(--accent-deep);
    letter-spacing: .1em;
  }

  .scenario-row h3 {
    font-size: 1.2rem;
    margin-bottom: 4px;
  }

  .scenario-row p {
    color: var(--ink-muted);
    font-size: 0.94rem;
    line-height: 1.8;
  }

  .scenario-row .sc-mark {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--brand-deep);
    color: var(--brand-deep);
    font-weight: 900;
    font-size: 1rem;
    transition: background .25s ease, color .25s ease;
  }

  .scenario-row:hover .sc-mark {
    background: var(--brand-deep);
    color: var(--paper);
  }

  /* FAQ */
  .faq-wrap {
    max-width: 830px;
    margin-inline: auto;
  }

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

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

  .faq-question {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    padding: 24px 14px 24px 4px;
    border: 0;
    background: transparent;
    text-align: left;
    cursor: pointer;
    transition: color .25s ease;
  }

  .faq-question span {
    font-size: 1.04rem;
    font-weight: 800;
    color: var(--ink-strong);
    line-height: 1.6;
  }

  .faq-item.open .faq-question span {
    color: var(--accent-deep);
  }

  .faq-icon {
    position: relative;
    width: 24px;
    height: 24px;
    flex: 0 0 24px;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: transparent;
    transition: border-color .25s ease, transform .35s ease;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    background: var(--ink-strong);
    transition: background .25s ease, transform .35s ease, opacity .2s ease;
  }

  .faq-icon::before {
    width: 10px;
    height: 2px;
    transform: translate(-50%, -50%);
  }

  .faq-icon::after {
    width: 2px;
    height: 10px;
    transform: translate(-50%, -50%);
  }

  .faq-item.open .faq-icon {
    border-color: var(--accent-deep);
    transform: rotate(180deg);
  }

  .faq-item.open .faq-icon::after {
    transform: translate(-50%, -50%) scaleY(0);
    opacity: 0;
  }

  .faq-item.open .faq-icon::before {
    background: var(--accent-deep);
  }

  .faq-question:hover .faq-icon {
    border-color: var(--brand-deep);
  }

  .faq-body {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows .35s cubic-bezier(.33, 1, .68, 1);
  }

  .faq-item.open .faq-body {
    grid-template-rows: 1fr;
  }

  .faq-body-inner {
    min-height: 0;
    overflow: hidden;
    padding-right: 14px;
  }

  .faq-body p {
    padding: 0 0 26px 4px;
    color: var(--ink-muted);
    line-height: 1.9;
    max-width: 720px;
    font-size: .96rem;
  }

  /* CTA panel */
  .cta-section {
    position: relative;
    padding-block: clamp(30px, 6vw, 112px);
  }

  .cta-panel {
    position: relative;
    overflow: hidden;
    border-radius: 28px;
    background-color: var(--brand-deep);
    background-position: center;
    background-size: cover;
    color: #fff;
    padding: clamp(40px, 7vw, 92px) clamp(24px, 5vw, 76px);
  }

  .cta-panel .cta-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, rgba(16, 33, 27, 0.98), rgba(16, 46, 35, 0.82));
  }

  .cta-panel .cta-content {
    position: relative;
    z-index: 3;
    max-width: 720px;
  }

  .cta-panel h2 {
    color: #fff;
    font-size: clamp(1.9rem, 4vw, 3.1rem);
    line-height: 1.2;
    margin-top: 16px;
  }

  .cta-panel .cta-desc {
    color: rgba(245, 240, 231, 0.8);
    margin-top: 20px;
    max-width: 600px;
    line-height: 1.9;
  }

  .cta-panel .cta-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
  }

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

  .btn-accent:hover {
    background: var(--accent-deep);
    box-shadow: 0 14px 30px rgba(223, 106, 47, 0.36);
    transform: translateY(-1px);
  }

  .cta-panel .cta-small {
    margin-top: 18px;
    color: rgba(245, 240, 231, 0.58);
    font-size: 0.83rem;
  }

  /* Footer */
  .footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding-top: 68px;
    padding-bottom: 30px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: minmax(260px, 1.5fr) 1fr 1fr;
    gap: clamp(30px, 5vw, 80px);
  }

  .footer-brand .brand-name {
    color: #fff;
  }

  .footer-brand .brand-name em {
    color: #fff;
    font-style: normal;
  }

  .footer-brand .brand-note {
    color: rgba(170, 184, 177, 0.72);
    display: block;
    margin-top: 2px;
  }

  .footer .desc {
    max-width: 330px;
    margin-top: 20px;
    font-size: 0.9rem;
    line-height: 1.8;
    color: rgba(170, 184, 177, 0.68);
  }

  .footer h4 {
    color: #fff;
    font-size: 0.95rem;
    letter-spacing: 0.04em;
    margin-bottom: 18px;
    font-weight: 800;
  }

  .footer ul {
    list-style: none;
  }

  .footer ul li + li {
    margin-top: 6px;
  }

  .footer .footer-link {
    color: rgba(170, 184, 177, 0.84);
    font-size: 0.92rem;
    transition: color .25s ease, padding-left .25s ease;
    display: inline-block;
  }

  .footer .footer-link:hover {
    color: #fff;
    padding-left: 3px;
  }

  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px 28px;
    margin-top: 56px;
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
    color: rgba(170, 184, 177, 0.5);
  }

  /* Responsive */
  @media (max-width: 1100px) {
    .steps-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .navtabs {
      padding-inline: 2px;
    }
  }

  @media (max-width: 900px) {
    .topbar {
      min-height: 68px;
    }

    .brand-name {
      font-size: 1.18rem;
    }

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

    .figure-card {
      min-height: 260px;
    }

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

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

    .level-3 {
      grid-column: 1 / -1;
    }

    .scenario-row {
      grid-template-columns: 60px 1fr 40px;
    }

    .search-form {
      display: none;
    }

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

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

  @media (max-width: 768px) {
    body {
      font-size: 15px;
    }

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

    .topbar {
      gap: 8px;
    }

    .brand-note {
      display: none;
    }

    .brand-name {
      font-size: 1.15rem;
      white-space: normal;
    }

    .hero-inner {
      min-height: 0;
    }

    .hero h1 {
      font-size: clamp(2.2rem, 9vw, 3.4rem);
    }

    .hero .hero-lead {
      font-size: 1rem;
    }

    .hero-points {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px 20px;
    }

    .hero-points li + li {
      margin-top: 0;
    }

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

    .step-card {
      min-height: 0;
    }

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

    .level-3 {
      grid-column: auto;
    }

    .scenario-row {
      grid-template-columns: 1fr;
      gap: 6px;
    }

    .sc-no {
      margin-bottom: 4px;
    }

    .scenario-row .sc-mark {
      display: none;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 34px;
    }

    .footer-bottom {
      display: block;
      text-align: left;
    }

    .footer-bottom p + p {
      margin-top: 6px;
    }
  }

  @media (max-width: 520px) {
    .navtab {
      padding-inline: 15px;
      min-height: 40px;
    }

    .cta-mini {
      padding-inline: 13px;
      font-size: 0.84rem;
      min-height: 36px;
      border-radius: 10px;
    }

    .cta-panel h2 {
      font-size: 1.8rem;
    }

    .faq-question {
      align-items: flex-start;
    }

    .faq-question span {
      font-size: 0.98rem;
    }

    .btn {
      width: auto;
      padding-inline: 20px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      scroll-behavior: auto !important;
      animation-delay: -0.01ms !important;
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
    }
  }

/* roulang page: category4 */
:root{
        --paper:#F5F0E7;
        --paper-2:#EDE5D9;
        --paper-deep:#E4DACC;
        --ink-strong:#15231D;
        --ink-body:#3A4640;
        --ink-muted:#6A746E;
        --line:rgba(21,35,29,0.12);
        --brand-deep:#103C30;
        --brand-primary:#1D5B45;
        --brand-light:#3E7C65;
        --accent:#DF6A2F;
        --accent-deep:#B94D23;
        --accent-soft:#F9E6DC;
        --footer-bg:#10211B;
        --footer-text:#AAB8B1;
        --radius-lg:22px;
        --radius-md:12px;
        --shadow-soft:0 8px 30px rgba(16,35,26,0.08);
        --shadow-hover:0 16px 40px rgba(16,35,26,0.12);
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html,body{scroll-behavior:smooth}
    body{
        font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB','Helvetica Neue',Arial,sans-serif;
        background:var(--paper);
        color:var(--ink-body);
        line-height:1.75;
        -webkit-font-smoothing:antialiased;
        text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    ul,ol{list-style:none}
    .container-x{
        width:min(1280px,100% - 48px);
        margin-inline:auto;
    }
    @media (max-width:640px){
        .container-x{width:min(100% - 32px,1280px)}
    }
    ::selection{background:var(--accent);color:var(--ink-strong)}
    :focus-visible{
        outline:3px solid rgba(223,106,47,.55);
        outline-offset:3px;border-radius:6px;
    }

    /* ======= header ======= */
    .site-header{
        position:sticky;top:0;z-index:50;
        background:rgba(245,240,231,.92);
        backdrop-filter:blur(12px);
        -webkit-backdrop-filter:blur(12px);
        border-bottom:1px solid var(--line);
    }
    .header-line{border-bottom:1px solid rgba(21,35,29,.08);background:rgba(245,240,231,.9)}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}
    .brand-logo{display:inline-flex;align-items:center;gap:12px;color:var(--ink-strong);flex-shrink:0}
    .brand-seal{
        width:44px;height:44px;border-radius:14px;
        background:var(--brand-deep);color:var(--paper);
        display:flex;align-items:center;justify-content:center;
        font-size:22px;font-weight:900;letter-spacing:-.05em;
        box-shadow:inset 0 0 0 1px rgba(255,255,255,.16),0 4px 14px rgba(16,60,48,.2);
    }
    .brand-name{display:block;font-size:20px;font-weight:900;letter-spacing:-.02em;line-height:1.25;white-space:nowrap}
    .brand-name em{font-style:normal;color:var(--accent)}
    .brand-note{display:block;font-size:11px;color:var(--ink-muted);letter-spacing:.06em;margin-top:3px;white-space:nowrap}
    .top-right{display:flex;align-items:center;gap:14px}
    .search-form{
        display:flex;align-items:center;gap:8px;
        background:#FFF9F2;
        border:1px solid var(--line);
        border-radius:999px;
        padding:0 12px 0 14px;
        height:42px;transition:border-color .2s,box-shadow .2s;
    }
    .search-form:focus-within{border-color:var(--brand-primary);box-shadow:0 0 0 3px rgba(29,91,69,.12)}
    .search-form input{border:0;outline:0;background:transparent;width:180px;font-size:14px;color:var(--ink-strong)}
    .search-form input::placeholder{color:var(--ink-muted)}
    .cta-mini{flex-shrink:0}
    .navrow{position:relative;z-index:2}
    .navtabs{
        display:flex;align-items:center;gap:6px;
        overflow-x:auto;padding:10px 0;
        scrollbar-width:none;-ms-overflow-style:none;
    }
    .navtabs::-webkit-scrollbar{display:none}
    .navtab{
        display:inline-flex;align-items:center;justify-content:center;
        min-height:44px;padding:0 20px;
        border-radius:999px;border:1px solid transparent;
        font-size:15px;font-weight:600;color:var(--ink-body);
        white-space:nowrap;transition:all .22s ease;
        letter-spacing:.02em;
    }
    .navtab:hover{background:var(--paper-2);color:var(--brand-deep);border-color:transparent}
    .navtab.active{background:var(--brand-deep);color:var(--paper);box-shadow:0 6px 14px rgba(16,60,48,.22)}
    .navtab.active:hover{background:var(--brand-primary);color:#FFF9F2}

    /* ======= buttons ======= */
    .btn{
        display:inline-flex;align-items:center;justify-content:center;gap:8px;
        border-radius:999px;font-weight:700;line-height:1;
        padding:0 22px;height:44px;
        transition:background-color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s;
        white-space:nowrap;border:1px solid transparent;
        cursor:pointer;text-decoration:none;
    }
    .btn-sm{height:36px;padding:0 16px;font-size:14px}
    .btn-lg{height:56px;padding:0 30px;font-size:17px}
    .btn-primary{background:var(--accent);color:var(--ink-strong)}
    .btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 24px rgba(185,77,35,.22)}
    .btn-primary:active{transform:translateY(0);box-shadow:none}
    .btn-dark{background:var(--brand-deep);color:var(--paper)}
    .btn-dark:hover{background:#0b3226;color:#fff;transform:translateY(-1px)}
    .btn-line{background:transparent;border-color:rgba(16,60,48,.35);color:var(--brand-deep)}
    .btn-line:hover,.btn-line:focus-visible{background:var(--brand-deep);border-color:var(--brand-deep);color:var(--paper)}
    .btn-ghost-light{border-color:rgba(255,255,255,.4);color:#f6f1e8;background:rgba(255,255,255,.07)}
    .btn-ghost-light:hover{background:#F9E6DC;color:#15231D;border-color:#F9E6DC}
    .text-link{position:relative;display:inline-flex;align-items:center;gap:8px;color:var(--brand-deep);font-weight:700;text-decoration:none}
    .text-link:hover{color:var(--accent-deep)}
    .text-link::after{content:'';position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);transition:width .25s}
    .text-link:hover::after{width:100%}
    .text-link.light{color:#faf5ed}
    .text-link.light:hover{color:var(--accent)}

    /* ======= hero ======= */
    .hero{
        position:relative;overflow:hidden;
        background:
            linear-gradient(90deg,rgba(16,35,26,.94) 0%,rgba(16,35,26,.72) 42%,rgba(16,35,26,.34) 100%),
            url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
        color:#f7f2e9;
        padding:120px 0 108px;
        border-bottom:1px solid rgba(21,35,29,.12);
    }
    .hero .container-x{position:relative;z-index:2}
    .hero-kicker{
        display:inline-flex;align-items:center;gap:10px;
        background:rgba(255,255,255,.1);
        border:1px solid rgba(255,255,255,.22);
        border-radius:999px;padding:6px 14px;font-size:13px;letter-spacing:.08em;
        backdrop-filter:blur(6px);
        margin-bottom:22px;
    }
    .hero-kicker i{color:var(--accent)}
    .hero h1{
        font-size:clamp(2.35rem,5vw,4.3rem);
        line-height:1.12;letter-spacing:-.04em;
        font-weight:900;color:var(--paper);
        max-width:920px;
        text-wrap:balance;
    }
    .hero h1 span{color:var(--accent)}
    .hero-desc{
        margin-top:26px;font-size:clamp(1.05rem,1.6vw,1.25rem);
        line-height:1.8;color:rgba(245,240,231,.88);
        max-width:680px;
        font-weight:400;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;align-items:center}
    .hero-metrics{
        display:flex;flex-wrap:wrap;gap:18px;margin-top:50px;
        padding-top:24px;border-top:1px solid rgba(255,255,255,.18);
        max-width:760px;
    }
    .hero-metric{
        background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
        border-radius:var(--radius-md);padding:12px 20px;
        backdrop-filter:blur(8px);
    }
    .hero-metric b{display:block;font-size:28px;font-weight:900;color:#fff;letter-spacing:-.03em;line-height:1.2}
    .hero-metric b i{font-style:normal;color:var(--accent)}
    .hero-metric span{font-size:12px;color:rgba(240,235,225,.75);letter-spacing:.04em}

    /* ======= sections general ======= */
    .segment-shape{padding:100px 0;position:relative}
    .segment-soft{padding:100px 0;background:var(--paper-2)}
    .kicker{
        display:inline-flex;align-items:center;gap:10px;
        color:var(--accent-deep);font-size:15px;font-weight:700;letter-spacing:.22em;
        text-transform:uppercase;margin-bottom:12px;
    }
    .kicker::before{content:'';width:26px;height:2px;background:var(--accent);display:inline-block;border-radius:2px}
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:40px;flex-wrap:wrap}
    .section-title{
        font-size:clamp(1.8rem,3.4vw,2.8rem);
        font-weight:900;line-height:1.2;color:var(--ink-strong);
        letter-spacing:-.02em;max-width:800px;text-wrap:balance;
    }
    .section-title em{font-style:normal;color:var(--accent-deep)}
    .text-lead{color:var(--ink-muted);max-width:570px;font-size:16px}
    .meta-note{font-size:14px;color:var(--ink-muted)}

    /* ======= guide grid ======= */
    .guide-card{
        position:relative;display:block;
        background:#FFFBF4;border:1px solid var(--line);
        border-radius:var(--radius-lg);
        overflow:hidden;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
    }
    .guide-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(29,91,69,.2)}
    .guide-card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper-deep)}
    .guide-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease}
    .guide-card:hover .guide-card-media img{transform:scale(1.035)}
    .guide-card-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 46%,rgba(21,35,29,.35))}
    .media-index{
        position:absolute;left:16px;bottom:14px;z-index:2;
        background:var(--accent);color:var(--ink-strong);
        border-radius:999px;padding:3px 12px;font-size:13px;font-weight:800;letter-spacing:.04em;
    }
    .guide-body{padding:22px 22px 24px}
    .guide-card h3{font-size:20px;font-weight:900;color:var(--ink-strong);letter-spacing:-.01em;line-height:1.35}
    .guide-card p{font-size:14.5px;line-height:1.7;color:var(--ink-muted);margin-top:10px}
    .guide-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:14px;border-top:1px dashed rgba(21,35,29,.14);color:var(--brand-primary);font-weight:600;font-size:14px}
    .guide-foot i{transition:transform .22s}
    .guide-card:hover .guide-foot i{transform:translateX(4px);color:var(--accent)}
    .grid-main{display:grid;grid-template-columns:1.25fr .75fr;gap:24px}
    .grid-split{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
    @media(max-width:1024px){
        .segment-shape,.segment-soft{padding:76px 0}
        .grid-main,.grid-split{grid-template-columns:repeat(2,1fr)}
        .grid-main{grid-template-columns:1fr 1fr}
    }
    @media(max-width:640px){
        .grid-main,.grid-split{grid-template-columns:1fr}
        .segment-shape,.segment-soft{padding:60px 0}
    }

    /* ======= featured editorial / wide block ======= */
    .feature-row{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:stretch}
    @media(max-width:980px){.feature-row{grid-template-columns:1fr}}
    .feature-image{
        position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:320px;
        background:var(--paper-deep);box-shadow:var(--shadow-soft);
    }
    .feature-image img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
    .feature-image .cover-tag{
        position:absolute;top:18px;left:18px;background:rgba(245,240,231,.92);
        color:var(--brand-deep);font-weight:700;font-size:13px;border-radius:999px;
        padding:4px 12px;backdrop-filter:blur(8px);box-shadow:0 4px 14px rgba(0,0,0,.12)
    }
    .feature-content{
        background:#FFFBF4;border:1px solid var(--line);border-radius:var(--radius-lg);
        padding:clamp(24px,4vw,40px);display:flex;flex-direction:column;gap:18px;justify-content:center;
    }
    .feature-content h3{font-size:clamp(1.6rem,2.4vw,2.3rem);font-weight:900;color:var(--ink-strong);line-height:1.3;letter-spacing:-.02em}
    .feature-content p{font-size:16px;color:var(--ink-muted);line-height:1.85}
    .feature-list{display:grid;gap:10px;margin-top:4px}
    .feature-list li{display:flex;gap:12px;align-items:flex-start;font-weight:500;color:var(--ink-body);font-size:15px}
    .feature-list li i{color:var(--accent);margin-top:6px}

    /* ======= number steps ======= */
    .process-track{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:process}
    .process-card{
        background:#FFF9F0;border:1px solid var(--line);border-radius:var(--radius-lg);
        padding:32px 28px;position:relative;overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s;
        counter-increment:process;
    }
    .process-card:hover{transform:translateY(-4px);border-color:rgba(29,91,69,.16);box-shadow:var(--shadow-hover)}
    .process-card::before{
        content:counter(process, decimal-leading-zero);
        font-size:clamp(3.4rem,6vw,5rem);font-weight:900;line-height:1;
        position:absolute;right:20px;top:18px;color:rgba(21,35,29,.06);letter-spacing:-.06em;
    }
    .process-icon{
        width:52px;height:52px;border-radius:16px;background:var(--brand-deep);
        color:var(--paper);display:flex;align-items:center;justify-content:center;font-size:24px;
        margin-bottom:20px;box-shadow:0 6px 16px rgba(16,60,48,.18);
    }
    .process-card h3{font-size:20px;font-weight:900;color:var(--ink-strong);letter-spacing:-.01em}
    .process-card p{font-size:15px;line-height:1.7;color:var(--ink-muted);margin-top:12px}
    @media(max-width:900px){.process-track{grid-template-columns:1fr}}

    /* ======= darker member band ======= */
    .band-deep{
        background:linear-gradient(120deg,var(--footer-bg) 0%,var(--brand-deep) 100%);
        border-radius:var(--radius-lg);color:rgba(245,240,231,.9);
        padding:clamp(30px,5vw,56px);
        display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center;
        overflow:hidden;position:relative;
    }
    .band-deep::after{content:'';position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(223,106,47,.2),transparent 70%);right:-140px;top:-140px;pointer-events:none}
    .band-deep h3{font-size:clamp(1.5rem,3vw,2.3rem);font-weight:900;color:#fff;line-height:1.3;letter-spacing:-.02em}
    .band-deep p{margin-top:16px;line-height:1.85;color:rgba(238,232,220,.8)}
    .band-deep .point-row{display:flex;gap:20px;margin-top:18px;flex-wrap:wrap}
    .point-row b{color:#fff;font-size:17px;display:block}
    .point-row span{color:rgba(238,232,220,.7);font-size:14px}
    .band-actions{display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap;position:relative;z-index:2}
    @media(max-width:768px){
        .band-deep{grid-template-columns:1fr}
        .band-actions{justify-content:flex-start}
    }

    /* ======= faq ======= */
    .faq-wrap{max-width:860px;margin:0 auto}
    .faq-item{
        border-bottom:1px solid var(--line);background:transparent;transition:background .25s,border-color .25s;
    }
    .faq-item:first-child{border-top:1px solid var(--line)}
    .faq-item.open{background:var(--paper-2);}
    .faq-q{
        width:100%;display:flex;justify-content:space-between;align-items:center;gap:22px;
        padding:24px 6px;background:transparent;border:0;text-align:left;
        font-size:17px;font-weight:700;color:var(--ink-strong);line-height:1.5;cursor:pointer;
        transition:color .2s;
    }
    .faq-item.open .faq-q{color:var(--brand-deep)}
    .faq-q .qa{cursor:pointer}
    .faq-toggle{
        flex:0 0 32px;width:32px;height:32px;border-radius:50%;
        display:flex;align-items:center;justify-content:center;
        border:1px solid var(--line);background:#fff;color:var(--brand-deep);
        transition:transform .3s,background .3s,color .3s;
        font-size:17px;
    }
    .faq-item.open .faq-toggle{background:var(--accent);border-color:var(--accent);color:var(--ink-strong);transform:rotate(135deg)}
    .faq-panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
    .faq-item.open .faq-panel{grid-template-rows:1fr}
    .faq-ans{overflow:hidden}
    .faq-ans-inner{padding:2px 6px 24px;color:var(--ink-body);font-size:15.5px;line-height:1.85;max-width:780px}

    /* ======= newsletter/cta style ======= */
    .cta-band{
        background:var(--brand-deep);border-radius:var(--radius-lg);
        padding:clamp(32px,5vw,56px);display:flex;
        justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap;
    }
    .cta-band h3{font-size:clamp(1.4rem,2.4vw,2rem);color:#fff;font-weight:900;line-height:1.3;letter-spacing:-.02em;max-width:480px}
    .cta-band h3 span{color:var(--accent)}
    @media(max-width:640px){.cta-band a{width:100%;justify-content:center}}

    /* ======= footer ======= */
    .footer{
        background:var(--footer-bg);color:var(--footer-text);
        padding:76px 0 32px;margin-top:0;position:relative;overflow:hidden;
    }
    .footer::before{
        content:'';position:absolute;right:-130px;top:-130px;width:360px;height:360px;
        border-radius:50%;background:radial-gradient(circle,rgba(223,106,47,.12),transparent 70%);pointer-events:none;
    }
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:32px 40px;margin-bottom:44px;position:relative;z-index:2}
    .footer-brand .brand-name{font-size:20px;color:#fff}
    .footer-brand .brand-name em{font-style:normal;color:var(--accent)}
    .footer-brand .brand-note{color:rgba(240,230,218,.6);display:block;margin-top:8px;font-size:12px;letter-spacing:.12em;text-transform:uppercase}
    .footer-brand .desc{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(215,225,218,.6);max-width:360px}
    .footer h4{color:#fff;font-size:15px;font-weight:800;letter-spacing:.08em;margin:6px 0 18px}
    .footer ul li{margin-bottom:10px}
    .footer-link{color:rgba(215,225,218,.66);font-size:14px;position:relative;transition:color .2s,padding-left .2s}
    .footer-link:hover{color:var(--accent);padding-left:16px}
    .footer-link::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:0;height:1.5px;background:var(--accent);transition:width .2s}
    .footer-link:hover::before{width:10px}
    .footer-bottom{
        border-top:1px solid rgba(255,255,255,.11);
        padding-top:28px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
        color:rgba(200,210,205,.5);font-size:12.5px;
    }
    @media(max-width:768px){
        .footer-grid{grid-template-columns:1fr 1fr}
        .footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
        .footer-grid{grid-template-columns:1fr}
        .footer-bottom{flex-direction:column}
    }

    /* quick utility */
    .bordered-block{
        border:1px dashed rgba(21,35,29,.2);border-radius:var(--radius-lg);padding:24px;
        background:rgba(237,229,217,.4);
    }
    .dotted-line{border-top:1px dashed rgba(21,35,29,.16)}
    .shadow-card{box-shadow:var(--shadow-soft)}
    .rounded-card{border-radius:var(--radius-lg)}

    @media (prefers-reduced-motion: reduce){
        *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important;scroll-behavior:auto!important}
    }