/* roulang page: index */
:root {
  --brand-deep:#063F3E;
  --brand-main:#0B6661;
  --brand-soft:#D6EAE6;
  --accent-gold:#D99A26;
  --accent-light:#F3DCA7;
  --paper:#F4F1EA;
  --surface:#FFFFFF;
  --ink:#1B2B2A;
  --ink-secondary:#4D6765;
  --line:#E2DED4;
  --radius-card:16px;
  --radius-large:24px;
  --shadow-card:0 1px 2px rgba(6,63,62,.06), 0 8px 20px rgba(6,63,62,.06);
  --shadow-hover:0 12px 28px rgba(6,63,62,.12);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
*{box-sizing:border-box}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit}
a{color:inherit;text-decoration:none}
button{cursor:pointer}
h1,h2,h3,h4,h5,p{line-height:1.5}
:focus-visible{outline:none;box-shadow:0 0 0 2px var(--background,#F4F1EA),0 0 0 5px var(--accent-gold);border-radius:6px}
.container-site{width:min(1200px,92vw);margin-left:auto;margin-right:auto}
.bg-grid-pattern{
  background-image:linear-gradient(rgba(6,63,62,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(6,63,62,.045) 1px,transparent 1px);
  background-size:44px 44px;
}
.nav-wrap{
  position:sticky;top:0;z-index:60;
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
  border-bottom:1px solid rgba(255,255,255,.12);
  background:rgba(6,63,62,.72);
  backdrop-filter:saturate(150%);
}
.nav-wrap.scrolled{background:rgba(6,63,62,.95);box-shadow:0 10px 26px rgba(6,63,62,.1)}
.nav-link{position:relative;color:#EAF3F1;letter-spacing:.01em;transition:color .2s}
.nav-link:hover{color:#F3DCA7}
.nav-link.active{color:#F3DCA7}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;margin:0 auto;
  width:18px;height:3px;border-radius:999px;background:var(--accent-gold);
}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;transition:all .2s ease;letter-spacing:.01em}
.btn:focus-visible{box-shadow:0 0 0 2px var(--paper),0 0 0 5px var(--accent-gold)}
.btn-primary{background:var(--brand-main);color:#fff;box-shadow:0 6px 16px rgba(11,102,97,.25)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-gold{background:var(--accent-gold);color:#1B2B2A;box-shadow:0 8px 18px rgba(217,154,38,.32)}
.btn-gold:hover{background:#f0b545;transform:translateY(-2px);color:#063F3E}
.btn-gold:active{transform:translateY(1px);box-shadow:none}
.btn-outline{border:1px solid rgba(255,255,255,.65);background:transparent;color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-on-light{border:1px solid var(--line);background:var(--surface);color:var(--brand-main)}
.btn-on-light:hover{background:var(--brand-soft);border-color:var(--brand-soft)}
.menu-icon{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.2);border-radius:12px;color:#EAF3F1}
.tag-pill{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;background:var(--brand-soft);color:var(--brand-deep);font-size:13px;font-weight:600}
.data-badge{background:#fff;border-radius:14px;padding:12px 16px;box-shadow:var(--shadow-card);display:inline-flex;gap:12px;align-items:center;min-width:0}
.data-badge .num{font-size:24px;font-weight:700;color:var(--accent-gold);font-variant-numeric:tabular-nums;line-height:1.2}
.eva-card{scroll-snap-align:start;border:1px solid var(--line);border-left:1px solid var(--line);box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease}
.eva-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.faq-item{border:1px solid var(--line);border-radius:18px;background:#fff;transition:background .3s ease,border-color .3s ease}
.faq-item.open{background:var(--brand-soft);border-color:rgba(11,102,97,.35)}
.faq-a{display:none;padding:0 20px 18px;color:var(--ink-secondary)}
.faq-item.open .faq-a{display:block}
.faq-icon{transition:transform .3s ease;border-radius:999px;background:rgba(6,63,62,.05);border:1px solid rgba(6,63,62,.14)}
.faq-item.open .faq-icon{background:#fff;color:var(--brand-main)}
.footer-link{display:inline-flex;color:#AECAC6;gap:6px;align-items:center;font-size:14px;transition:color .2s}
.footer-link:hover{color:#fff}
.hover-rise{transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.hover-rise:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:transparent}
.hover-rise{position:relative;overflow:hidden}
.hover-rise::after{content:"";position:absolute;right:0;top:0;height:100%;width:3px;background:var(--accent-gold);transform:scaleY(0);transform-origin:top;transition:transform .3s ease}
.hover-rise:hover::after{transform:scaleY(1)}
.eva-track::-webkit-scrollbar{height:6px}
.eva-track::-webkit-scrollbar-thumb{background:rgba(6,63,62,.28);border-radius:999px}
.eva-track::-webkit-scrollbar-track{background:rgba(6,63,62,.05);border-radius:999px}
.bg-radial-gold{background-image:radial-gradient(circle at 80% 20%, rgba(217,154,38,.28), transparent 40%),radial-gradient(circle at 10% 90%, rgba(214,234,230,.55), transparent 46%)}
.bg-angle{background-image:linear-gradient(135deg,#063F3E,#0B6661)}
@keyframes float-up{0%{transform:translateY(16px);opacity:0}100%{transform:translateY(0);opacity:1}}
.review-dot{width:8px;height:8px;border-radius:999px;background:rgba(6,63,62,.25);transition:background .3s}
.review-dot.active{background:var(--brand-main);width:24px}
@media (max-width:1023px){
  .nav-mobile-panel{display:block;background:#063F3E;border-radius:0 0 16px 16px;padding:10px 6px 22px}
}
@media (max-width:767px){
  .nav-desktop-actions{display:none}
  .mobile-menu-open .nav-mobile-hide{display:none}
}

/* roulang page: category1 */
:root {
      --brand-deep: #063F3E;
      --brand-main: #0B6661;
      --brand-soft: #D6EAE6;
      --accent-gold: #D99A26;
      --accent-light: #F3DCA7;
      --paper: #F4F1EA;
      --surface: #FFFFFF;
      --ink: #1B2B2A;
      --ink-secondary: #4D6765;
      --line: #E2DED4;
      --radius-card: 16px;
      --radius-panel: 24px;
      --shadow-card: 0 1px 2px rgba(6, 63, 62, .06), 0 8px 20px rgba(6, 63, 62, .06);
      --shadow-hover: 0 12px 28px rgba(6, 63, 62, .12);
      --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

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

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

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

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

    @media (max-width: 520px) {
      .container-site {
        padding: 0 18px;
      }
    }

    ::selection {
      background: var(--brand-soft);
      color: var(--brand-deep);
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(255, 255, 255, .94);
      border-bottom: 1px solid rgba(226, 222, 212, .8);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }

    .site-header.is-scrolled {
      box-shadow: 0 8px 24px rgba(6, 63, 62, .08);
    }

    .logo-mark {
      width: 34px;
      height: 34px;
      border-radius: 11px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-light));
      color: var(--brand-deep);
      font-weight: 800;
      font-size: 18px;
      box-shadow: 0 4px 12px rgba(217, 154, 38, .2);
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      color: var(--ink-secondary);
      transition: color .2s ease;
    }

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

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

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 18px;
      height: 3px;
      border-radius: 999px;
      background: var(--accent-gold);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 44px;
      padding: 0 24px;
      border-radius: 999px;
      font-weight: 600;
      font-size: 15px;
      border: 1px solid transparent;
      transition: background .2s ease, transform .2s ease, box-shadow .2s ease, color .2s ease, border-color .2s ease;
    }

    .btn-sm {
      height: 38px;
      padding: 0 18px;
      font-size: 14px;
    }

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

    .btn-primary:hover {
      background: var(--brand-deep);
      border-color: var(--brand-deep);
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(6, 63, 62, .18);
    }

    .btn-gold {
      background: var(--accent-gold);
      color: var(--brand-deep);
    }

    .btn-gold:hover {
      background: var(--accent-light);
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(217, 154, 38, .18);
    }

    .btn-ghost-light {
      border-color: rgba(255, 255, 255, .38);
      color: #fff;
    }

    .btn-ghost-light:hover {
      border-color: var(--accent-light);
      color: var(--accent-light);
      background: rgba(255, 255, 255, .08);
    }

    .btn-ghost {
      border-color: var(--brand-main);
      color: var(--brand-main);
    }

    .btn-ghost:hover {
      background: var(--brand-soft);
      color: var(--brand-deep);
    }

    .btn-deep {
      background: var(--brand-deep);
      color: var(--accent-light);
    }

    .btn-deep:hover {
      background: #052e2d;
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(6, 63, 62, .16);
    }

    .texture-grid {
      background-image:
        linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
      background-size: 42px 42px;
    }

    .hero-cut {
      position: absolute;
      bottom: -2px;
      left: -6%;
      right: -6%;
      height: 34px;
      background: var(--paper);
      border-radius: 50% 50% 0 0 / 100% 100% 0 0;
      pointer-events: none;
    }

    .stat-item {
      background: rgba(255, 255, 255, .1);
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 14px;
      padding: 14px 16px;
    }

    .stat-num {
      color: var(--accent-light);
      font-weight: 700;
      font-size: 26px;
      line-height: 1.2;
      font-variant-numeric: tabular-nums;
    }

    .section-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 34px;
      height: 34px;
      padding: 0 10px;
      border-radius: 10px;
      background: var(--brand-soft);
      color: var(--brand-main);
      font-weight: 700;
      font-size: 15px;
    }

    .kicker {
      font-size: 14px;
      font-weight: 600;
      color: var(--brand-main);
      letter-spacing: .08em;
    }

    .rounded-card {
      border-radius: var(--radius-card);
    }

    .rounded-panel {
      border-radius: var(--radius-panel);
    }

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

    .step-item {
      position: relative;
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 24px;
      transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
      display: flex;
      gap: 20px;
      align-items: flex-start;
    }

    .step-item::before {
      content: "";
      position: absolute;
      right: 0;
      top: 16px;
      width: 3px;
      height: 0;
      border-radius: 999px 0 0 999px;
      background: var(--accent-gold);
      transition: height .25s ease;
    }

    .step-item:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(11, 102, 97, .22);
    }

    .step-item:hover::before {
      height: 44px;
    }

    .step-num {
      flex: 0 0 auto;
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--brand-main), var(--brand-deep));
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 700;
      box-shadow: 0 6px 16px rgba(6, 63, 62, .14);
    }

    .check-line {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      padding: 10px 0;
    }

    .check-icon {
      flex: 0 0 auto;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: var(--brand-main);
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 700;
      margin-top: 3px;
    }

    .icon-badge {
      flex: 0 0 auto;
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: var(--brand-soft);
      color: var(--brand-main);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: background .2s ease, color .2s ease;
    }

    .trouble-list {
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      background: var(--surface);
      box-shadow: var(--shadow-card);
      overflow: hidden;
    }

    .trouble-item {
      display: grid;
      grid-template-columns: 1fr 220px;
      gap: 20px;
      padding: 20px 24px;
      border-bottom: 1px solid var(--line);
      transition: background .2s ease;
    }

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

    .trouble-item:hover {
      background: #FAF8F3;
    }

    .trouble-icon {
      width: 34px;
      height: 34px;
      border-radius: 10px;
      background: var(--accent-light);
      color: var(--brand-deep);
      font-weight: 700;
      font-size: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
    }

    .action-arrow {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--brand-main);
      font-weight: 600;
      font-size: 14px;
      white-space: nowrap;
      transition: color .2s ease, gap .2s ease;
    }

    .action-arrow:hover {
      color: var(--accent-gold);
      gap: 10px;
    }

    @media (max-width: 767px) {
      .trouble-item {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 18px;
      }
    }

    .toc-link {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 9px 12px;
      border-radius: 10px;
      color: var(--ink-secondary);
      font-size: 14px;
      font-weight: 500;
      transition: background .2s ease, color .2s ease;
    }

    .toc-link:hover {
      background: var(--brand-soft);
      color: var(--brand-deep);
    }

    .toc-index {
      width: 22px;
      height: 22px;
      border-radius: 7px;
      background: rgba(11, 102, 97, .1);
      color: var(--brand-main);
      font-size: 12px;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
    }

    .safe-card {
      background: linear-gradient(145deg, var(--brand-deep), var(--brand-main));
      border-radius: var(--radius-card);
      color: #fff;
      padding: 22px;
    }

    .footer-link {
      color: rgba(255, 255, 255, .58);
      transition: color .2s ease, padding-left .2s ease;
      font-size: 14px;
    }

    .footer-link:hover {
      color: var(--accent-light);
      padding-left: 4px;
    }

    .details-mobile summary {
      list-style: none;
    }

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

    @keyframes floatSoft {
      0%, 100% {
        transform: translateY(0);
      }
      50% {
        transform: translateY(-8px);
      }
    }

    .float-soft {
      animation: floatSoft 3.8s ease-in-out infinite;
    }

/* roulang page: article */
:root {
      --brand-deep: #063F3E;
      --brand-main: #0B6661;
      --brand-soft: #D6EAE6;
      --accent-gold: #D99A26;
      --accent-light: #F3DCA7;
      --paper: #F4F1EA;
      --surface: #FFFFFF;
      --ink: #1B2B2A;
      --ink-secondary: #4D6765;
      --line: #E2DED4;
      --radius-lg: 24px;
      --radius-md: 16px;
      --shadow-card: 0 1px 2px rgba(6, 63, 62, 0.06), 0 8px 20px rgba(6, 63, 62, 0.06);
      --shadow-hover: 0 12px 28px rgba(6, 63, 62, 0.12);
    }

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

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

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

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

    button,
    input {
      font-family: inherit;
      border: 0;
      outline: none;
    }

    button {
      cursor: pointer;
      background: none;
      padding: 0;
    }

    .container-site {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .text-balance {
      text-wrap: balance;
    }

    .site-header {
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 8px 24px rgba(6, 63, 62, 0.08);
      transition: background 0.3s ease, border-color 0.3s ease;
    }

    .site-header .logo-mark {
      border-radius: 12px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-light));
      color: var(--brand-deep);
      width: 34px;
      height: 34px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      box-shadow: 0 4px 10px rgba(217, 154, 38, 0.35);
    }

    .nav-link {
      position: relative;
      color: rgba(255, 255, 255, 0.78);
      letter-spacing: 0.01em;
      transition: color 0.2s ease;
      padding: 6px 2px;
    }

    .nav-link:hover {
      color: #ffffff;
    }

    .nav-link.active {
      color: var(--accent-gold);
    }

    .nav-link.active::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: -2px;
      height: 4px;
      width: 18px;
      border-radius: 999px;
      background: var(--accent-gold);
      transform: translateX(-50%);
    }

    .icon-btn {
      width: 36px;
      height: 36px;
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: rgba(255, 255, 255, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.14);
      transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    }

    .icon-btn:hover {
      background: rgba(255, 255, 255, 0.1);
      color: var(--accent-gold);
      border-color: rgba(217, 154, 38, 0.45);
    }

    .btn-header {
      height: 38px;
      padding: 0 18px;
      border-radius: 999px;
      background: var(--accent-gold);
      color: #1B2B2A;
      font-size: 14px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
      box-shadow: 0 6px 16px rgba(217, 154, 38, 0.25);
    }

    .btn-header:hover {
      background: #eaa834;
      color: #06201f;
      box-shadow: 0 10px 22px rgba(217, 154, 38, 0.35);
    }

    .btn-header:active {
      transform: translateY(1px);
      box-shadow: 0 4px 10px rgba(217, 154, 38, 0.2);
    }

    .mobile-menu-panel {
      position: fixed;
      top: 60px;
      left: 0;
      right: 0;
      background: var(--brand-deep);
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 18px 24px 26px;
      z-index: 60;
      box-shadow: 0 20px 30px rgba(6, 63, 62, 0.25);
    }

    .mobile-menu-panel a {
      color: rgba(255, 255, 255, 0.86);
      display: block;
      padding: 10px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 15px;
    }

    .mobile-menu-panel a.active {
      color: var(--accent-gold);
    }

    .search-panel {
      position: fixed;
      top: 60px;
      right: 20px;
      width: min(380px, calc(100vw - 32px));
      z-index: 70;
      background: #ffffff;
      border-radius: 18px;
      box-shadow: 0 16px 36px rgba(6, 63, 62, 0.18);
      padding: 8px;
      border: 1px solid var(--line);
    }

    .search-panel form {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .search-panel input {
      height: 40px;
      background: #f7f5f0;
      border-radius: 12px;
      padding: 0 12px;
      font-size: 14px;
      color: var(--ink);
      flex: 1;
      width: 100%;
      min-width: 0;
    }

    .search-panel input:focus {
      box-shadow: inset 0 0 0 2px var(--accent-gold);
    }

    .search-panel button {
      height: 40px;
      padding: 0 16px;
      border-radius: 12px;
      background: var(--brand-main);
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      transition: background 0.2s ease;
    }

    .search-panel button:hover {
      background: var(--brand-deep);
    }

    .breadcrumb-link {
      color: rgba(255, 255, 255, 0.66);
      font-size: 13px;
      transition: color 0.2s ease;
    }

    .breadcrumb-link:hover {
      color: var(--accent-gold);
    }

    .article-hero {
      background: linear-gradient(135deg, #063F3E 0%, #0B6661 70%, #0a5e53 100%);
      position: relative;
      overflow: hidden;
    }

    .article-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      opacity: 0.14;
      pointer-events: none;
    }

    .article-hero::after {
      content: '';
      position: absolute;
      right: 4%;
      bottom: -40%;
      width: 220px;
      height: 220px;
      background: radial-gradient(circle, rgba(217, 154, 38, 0.5) 0%, rgba(217, 154, 38, 0) 70%);
      pointer-events: none;
    }

    .article-body-wrap {
      background: var(--paper);
    }

    .article-card {
      background: var(--surface);
      border: 1px solid rgba(226, 222, 212, 0.8);
      border-radius: 26px;
      box-shadow: var(--shadow-card);
    }

    .btn-primary-custom {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 46px;
      padding: 0 26px;
      border-radius: 999px;
      background: var(--brand-main);
      color: #ffffff;
      font-size: 15px;
      font-weight: 600;
      transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
      box-shadow: 0 10px 20px rgba(11, 102, 97, 0.18);
    }

    .btn-primary-custom:hover {
      background: var(--brand-deep);
      box-shadow: 0 14px 26px rgba(6, 63, 62, 0.22);
    }

    .btn-primary-custom:active {
      transform: translateY(2px);
      box-shadow: 0 6px 12px rgba(6, 63, 62, 0.16);
    }

    .btn-gold-custom {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 46px;
      padding: 0 28px;
      border-radius: 999px;
      background: var(--accent-gold);
      color: #1B2B2A;
      font-size: 15px;
      font-weight: 700;
      transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
      box-shadow: 0 10px 22px rgba(217, 154, 38, 0.28);
    }

    .btn-gold-custom:hover {
      background: #eaa834;
      color: #06201f;
      transform: translateY(-1px);
      box-shadow: 0 14px 26px rgba(217, 154, 38, 0.35);
    }

    .btn-gold-custom:active {
      transform: translateY(1px);
      box-shadow: 0 4px 12px rgba(217, 154, 38, 0.2);
    }

    .btn-ghost-light {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 46px;
      padding: 0 24px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.3);
      color: #ffffff;
      font-size: 15px;
      font-weight: 500;
      transition: background 0.2s ease, border-color 0.2s ease;
    }

    .btn-ghost-light:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(217, 154, 38, 0.8);
    }

    .article-content {
      font-size: 17px;
      line-height: 1.95;
      color: #263b39;
      word-break: break-word;
    }

    .article-content p {
      margin: 1.2em 0;
    }

    .article-content h2 {
      font-size: 28px;
      font-weight: 700;
      line-height: 1.4;
      margin: 2em 0 0.8em;
      color: var(--brand-deep);
      padding-left: 16px;
      border-left: 4px solid var(--accent-gold);
    }

    .article-content h3 {
      font-size: 21px;
      font-weight: 700;
      line-height: 1.5;
      margin: 1.8em 0 0.7em;
      color: #0b4c45;
    }

    .article-content ul,
    .article-content ol {
      padding-left: 1.4em;
      margin: 1.2em 0;
    }

    .article-content li {
      margin: 0.55em 0;
    }

    .article-content ul li::marker {
      color: var(--accent-gold);
    }

    .article-content ol li::marker {
      color: var(--brand-main);
      font-weight: 700;
    }

    .article-content blockquote {
      margin: 1.8em 0;
      padding: 20px 24px;
      background: #eaf4f0;
      border-radius: 16px;
      border-left: 4px solid var(--brand-main);
      color: #1f4642;
      font-size: 16px;
    }

    .article-content a {
      color: var(--brand-main);
      text-decoration: underline;
      text-decoration-color: rgba(217, 154, 38, 0.6);
      text-underline-offset: 4px;
      transition: color 0.2s ease, text-decoration-color 0.2s ease;
    }

    .article-content a:hover {
      color: var(--brand-deep);
      text-decoration-color: var(--accent-gold);
    }

    .article-content img {
      width: 100%;
      height: auto;
      border-radius: 20px;
      margin: 2rem auto;
      box-shadow: var(--shadow-card);
    }

    .article-content figure {
      margin: 2rem auto;
    }

    .article-content figcaption {
      font-size: 13px;
      color: var(--ink-secondary);
      text-align: center;
      margin-top: -1rem;
    }

    .article-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 2rem 0;
      font-size: 15px;
    }

    .article-content th,
    .article-content td {
      border: 1px solid var(--line);
      padding: 12px 14px;
      text-align: left;
    }

    .article-content th {
      background: #eaf4f0;
      font-weight: 700;
    }

    .article-content pre {
      background: #102f2c;
      color: #f3f1e9;
      padding: 20px;
      border-radius: 16px;
      font-size: 14px;
      overflow-x: auto;
      line-height: 1.7;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    }

    .article-content code {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      background: #e7f0ec;
      border-radius: 6px;
      padding: 2px 7px;
      color: #0a4f46;
      font-size: 0.9em;
    }

    .article-content pre code {
      background: transparent;
      color: inherit;
      padding: 0;
    }

    .pill-tag {
      display: inline-block;
      background: var(--brand-soft);
      color: var(--brand-deep);
      font-size: 13px;
      font-weight: 500;
      border-radius: 999px;
      padding: 7px 16px;
      line-height: 1.3;
      margin-right: 8px;
      margin-bottom: 8px;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .pill-tag:hover {
      background: var(--accent-gold);
      color: #06201f;
    }

    .quote-icon {
      color: var(--accent-gold);
      font-family: Georgia, "Times New Roman", serif;
      font-size: 54px;
      line-height: 1;
    }

    .footer-link {
      color: rgba(255, 255, 255, 0.6);
      font-size: 14px;
      transition: color 0.2s ease, padding-left 0.2s ease;
    }

    .footer-link:hover {
      color: var(--accent-gold);
      padding-left: 4px;
    }

    :focus-visible {
      outline: 2px solid var(--accent-gold);
      outline-offset: 3px;
      border-radius: 6px;
    }

    @media (max-width: 639px) {
      .article-content h2 {
        font-size: 23px;
      }

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

      .article-content blockquote {
        padding: 16px;
      }

      .search-panel {
        left: 16px;
        right: 16px;
        width: auto;
      }
    }

/* roulang page: category2 */
:root {
            --brand-deep: #063F3E;
            --brand-main: #0B6661;
            --brand-soft: #D6EAE6;
            --accent-gold: #D99A26;
            --accent-light: #F3DCA7;
            --paper: #F4F1EA;
            --surface: #FFFFFF;
            --ink: #1B2B2A;
            --ink-secondary: #4D6765;
            --line: #E2DED4;
            --radius-card: 16px;
            --radius-hero: 24px;
            --shadow-card: 0 1px 2px rgba(6, 63, 62, .06), 0 8px 20px rgba(6, 63, 62, .06);
            --shadow-hover: 0 12px 28px rgba(6, 63, 62, .12);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background-color: var(--paper);
            color: var(--ink);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            transition: color .25s, border-color .25s, background-color .25s, transform .25s, box-shadow .25s;
        }

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

        .container-site {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .scroll-none::-webkit-scrollbar {
            display: none;
        }

        .text-balance {
            text-wrap: balance;
        }

        /* Navigation */
        .nav-wrap {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(6, 63, 62, .96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .nav-link {
            color: rgba(255, 255, 255, .78);
            position: relative;
            padding-top: .4rem;
            padding-bottom: .4rem;
            letter-spacing: .02em;
        }

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

        .nav-link.active {
            color: var(--accent-gold);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: -4px;
            width: 18px;
            height: 3px;
            border-radius: 999px;
            background: var(--accent-gold);
        }

        .header-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-gold);
            color: var(--brand-deep);
            font-weight: 600;
            border-radius: 999px;
            height: 36px;
            padding: 0 16px;
            font-size: 14px;
            transition: all .25s;
        }

        .header-cta-btn:hover {
            background: var(--accent-light);
            transform: translateY(-1px);
        }

        .mobile-menu-panel {
            background: var(--brand-deep);
            border-top: 1px solid rgba(255, 255, 255, .08);
        }

        /* Footer links */
        .footer-link {
            color: rgba(255, 255, 255, .6);
            transition: color .25s;
        }

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

        /* General Card */
        .card-base {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 222, 212, .5);
            transition: transform .3s ease, box-shadow .3s ease;
        }

        /* Detail CTA Focus */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
            border-radius: 6px;
        }

        /* Section tag */
        .sec_tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-soft);
            color: var(--brand-deep);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: .04em;
        }

        /* Steps */
        .step-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-deep), var(--brand-main));
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }

        .arrow-process {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--brand-deep);
            font-weight: 700;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .arrow-process {
                transform: rotate(90deg);
            }
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--line);
            background-color: var(--surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color .3s, background-color .3s;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 22px;
            cursor: pointer;
            user-select: none;
            gap: 16px;
        }

        .faq-q-mark {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            background: var(--brand-soft);
            color: var(--brand-main);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            font-weight: 700;
            font-size: 14px;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease, padding .4s ease;
            padding-left: 22px;
            padding-right: 22px;
            line-height: 1.8;
            background: var(--surface);
        }

        .faq-answer p {
            margin: 0;
            padding-bottom: 18px;
            font-size: 15px;
            color: var(--ink-secondary);
        }

        .faq-item.active {
            background-color: var(--brand-soft);
            border-color: rgba(11, 102, 97, .35);
        }

        .faq-item.active .faq-q-mark {
            background: var(--brand-main);
            color: #fff;
        }

        .faq-item.active .faq-answer {
            max-height: 280px;
        }

        /* Banner pattern for main page */
        .banner-grid-pattern {
            background-image: radial-gradient(rgba(217, 154, 38, .15) 1px, transparent 1px);
            background-size: 18px 18px;
        }

        .banner-grid2 {
            background-image: linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
            background-size: 26px 26px;
        }

        /* CTA wave bottom */
        .cta-wave::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 80px;
            border-radius: 0 0 24px 24px;
        }

        .data-badge {
            background: var(--surface);
            border-radius: 12px;
            padding: 10px 14px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 222, 212, .55);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .data-badge-number {
            font-size: 22px;
            font-weight: 700;
            color: var(--accent-gold);
            font-variant-numeric: tabular-nums;
            line-height: 1.1;
        }

        .data-badge-label {
            font-size: 12px;
            color: var(--brand-deep);
        }

        .data-badge-sub {
            font-size: 11px;
            color: var(--ink-secondary);
            line-height: 1.3;
        }

        /* hover elevate for cards */
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(11, 102, 97, .28);
        }

        .shadow-deep-card {
            box-shadow: 0 16px 32px rgba(6, 63, 62, .16);
        }

        .gold-shadow {
            box-shadow: 0 6px 0 rgba(0, 0, 0, .08);
        }

        .content-container-max {
            max-width: 1080px;
            margin-left: auto;
            margin-right: auto;
        }

        /* line clamp just in case */
        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .line-clamp-3 {
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        @media (max-width: 520px) {
            .nav-mobile-sub-text {
                font-size: 13px;
            }
        }