/* roulang page: index */
:root {
    --brand: #0E6B5F; 
    --brand-dark: #075248;
    --brand-soft: #E4F1EE;
    --brand-deep: #123B34;
    --accent: #E86E34;
    --accent-soft: #FFF1E8;
    --bg-cream: #F7F8F6;
    --ink: #17211E;
    --muted: #5D6A65;
    --line: #E0E6E2;
    --radius-lg: 18px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow: 0 10px 30px rgba(18,59,52,.06);
    --shadow-hover: 0 18px 40px rgba(18,59,52,.1);
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', sans-serif;
    background: #F7F8F6;
    color: #17211E;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }
  *, *::before, *::after { box-sizing: border-box; }
  body, h1, h2, h3, h4, p, ul, ol, figure { margin: 0; padding: 0; list-style: none; }
  img, svg { display: block; max-width: 100%; }
  a { text-decoration: none; color: inherit; }
  button { font: inherit; border: none; background: none; cursor: pointer; }
  input, select, textarea { font: inherit; }
  :focus-visible {
    outline: 3px solid rgba(14,107,95,.35);
    outline-offset: 2px;
    border-radius: 4px;
  }
  ::selection { background: rgba(14,107,95,.15); }
  .container { max-width: 1320px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }
  @media (min-width: 768px) {
    .container { padding-left: 24px; padding-right: 24px; }
  }
  @media (min-width: 1024px) {
    .container { padding-left: 32px; padding-right: 32px; }
  }
  .btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    background: #E86E34; color: #fff; font-weight: 600; font-size: 15px;
    height: 48px; padding: 0 28px; border-radius: 10px; transition: all .2s ease;
    box-shadow: 0 4px 14px rgba(232,110,52,.2); border: 1px solid transparent;
  }
  .btn-primary:hover { background: #d05a24; transform: translateY(-2px); box-shadow: 0 8px 22px rgba(232,110,52,.3); }
  .btn-primary:active { transform: translateY(0); }
  .btn-ghost {
    display: inline-flex; align-items: center; justify-content: center;
    background: transparent; color: #123B34; font-weight: 600; font-size: 15px;
    height: 48px; padding: 0 28px; border-radius: 10px; transition: all .2s ease;
    border: 1px solid rgba(18,59,52,.35);
  }
  .btn-ghost:hover { background: rgba(14,107,95,.08); border-color: #0E6B5F; color: #075248; }
  .card-shadow { box-shadow: 0 10px 30px rgba(18,59,52,.06); }
  .card-shadow:hover { box-shadow: 0 18px 40px rgba(18,59,52,.1); }
  .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; }
  .pill-nav { scrollbar-width: none; -ms-overflow-style: none; }
  .pill-nav::-webkit-scrollbar { display: none; }
  .list-arrow ul { padding-left: 0; }
  .list-arrow li { position: relative; padding-left: 24px; }
  .list-arrow li:before { content: ''; position: absolute; left: 4px; top: 11px; width: 8px; height: 8px; border-right: 2px solid #0E6B5F; border-top: 2px solid #0E6B5F; transform: rotate(45deg); }
  .index-nav .nav-link {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 18px; border-radius: 999px; white-space: nowrap;
    color: #3a4741; font-weight: 500; font-size: 15px; transition: all .18s ease;
  }
  .index-nav .nav-link:hover { background: rgba(14,107,95,.06); color: #0E6B5F; }
  .index-nav .nav-link.active { background: rgba(14,107,95,.12); color: #075248; font-weight: 600; }
  @media (min-width: 1024px) {
    .index-nav .nav-link.active { background: #0E6B5F; color: #fff; box-shadow: 0 3px 10px rgba(14,107,95,.25); }
  }
  .index-nav .nav-link.active-dot { position: relative; }
  .index-nav .nav-link.active-dot.active:before {
    content: ''; position: absolute; left: 8px; right: 8px; bottom: 5px; height: 2px; border-radius: 2px;
    background: #0E6B5F;
  }
  .num-font { font-variant-numeric: tabular-nums; font-feature-settings: 'tnum'; }
  .hero-bg {
    background-image: linear-gradient(96deg, rgba(18,59,52,.92) 0%, rgba(18,59,52,.68) 42%, rgba(14,107,95,.28) 100%), url('/assets/images/backpic/back-1.webp');
    background-size: cover; background-position: center;
  }
  .deep-bg-texture { position: relative; }
  .deep-bg-texture:before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background-image: radial-gradient(rgba(255,255,255,.08) 1px, transparent 1px);
    background-size: 24px 24px;
  }
  .section-number { color: #0E6B5F; font-variant-numeric: tabular-nums; letter-spacing: .02em; }
  .badge-tag {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 4px 12px; border-radius: 999px; background: rgba(14,107,95,.09);
    color: #075248; font-size: 12.5px; font-weight: 600;
  }
  .badge-orange {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 4px 12px; border-radius: 999px; background: #FFF1E8;
    color: #E86E34; font-size: 12.5px; font-weight: 600;
  }
  .input-field {
    width: 100%; height: 46px; padding: 0 14px;
    border: 1px solid #D6DED9; border-radius: 10px; background: #fff;
    font-size: 14px; transition: border-color .2s, box-shadow .2s;
  }
  .input-field:focus {
    border-color: #0E6B5F;
    box-shadow: 0 0 0 4px rgba(14,107,95,.15);
    outline: none;
  }
  textarea.input-field { height: auto; padding: 12px 14px; resize: vertical; }
  select.input-field { appearance: none; background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="%235D6A65" stroke-width="2"><polyline points="6 9 12 15 18 9"></polyline></svg>'); background-repeat: no-repeat; background-position: right 14px center; padding-right: 42px; }
  .faq-box { border-bottom: 1px solid #E0E6E2; }
  .faq-box summary { cursor: pointer; padding: 20px 40px 20px 0; font-size: 16px; font-weight: 600; color: #17211E; list-style: none; transition: color .2s; position: relative; }
  .faq-box summary::-webkit-details-marker { display: none; }
  .faq-box summary:hover { color: #0E6B5F; }
  .faq-box summary:after { content: ''; position: absolute; right: 4px; top: 28px; width: 12px; height: 12px; border-right: 2px solid #0E6B5F; border-bottom: 2px solid #0E6B5F; transform: rotate(45deg); transition: transform .25s ease; }
  .faq-box[open] summary:after { transform: rotate(-135deg); top: 30px; }
  .faq-box .faq-answer { padding: 0 0 22px; color: #5D6A65; line-height: 1.8; max-width: 860px; }
  .logo-mark {
    width: 38px; height: 38px; border-radius: 10px;
    background: linear-gradient(135deg, #0E6B5F, #123B34);
    display: inline-flex; align-items: center; justify-content: center; flex: none;
  }
  .logo-mark svg { width: 22px; height: 22px; stroke: #fff; }
  .animated-arrow { transition: transform .2s; }
  .group:hover .animated-arrow { transform: translate(3px, -3px); }
  .cover-img { object-fit: cover; width: 100%; height: 100%; }
  .footer-title { color: #D7E5E1; font-size: 16px; font-weight: 600; margin-bottom: 16px; letter-spacing: .02em; }
  @media (max-width: 640px) {
    .hero-title { letter-spacing: -.02em; }
  }
  .bg-grid-soft { background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 46px 46px; }
  .link-under { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(14,107,95,.3); }
  .footer-link { color: #AFBDB8; transition: all .18s ease; font-size: 14px; line-height: 2.2; }
  .footer-link:hover { color: #E4F1EE; padding-left: 4px; }
  .card-hover { transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
  .card-hover:hover { transform: translateY(-6px); box-shadow: 0 20px 44px rgba(18,59,52,.1); }
  h1, h2, h3 { text-wrap: balance; }

/* roulang page: category1 */
:root {
    --brand: #0E6B5F;
    --brand-dark: #075248;
    --brand-soft: #E4F1EE;
    --deep: #123B34;
    --deep-2: #0B2D26;
    --cream: #F7F8F6;
    --white: #FFFFFF;
    --ink: #17211E;
    --muted: #5D6A65;
    --line: #E0E6E2;
    --accent: #E86E34;
    --accent-soft: #FFF1E8;
    --radius-lg: 18px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-1: 0 10px 30px rgba(18, 59, 52, 0.06);
    --shadow-2: 0 18px 44px rgba(18, 59, 52, 0.12);
    --container: 1320px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
    background: var(--cream);
    color: var(--ink);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

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

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

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

  button {
    cursor: pointer;
  }

  h1,
  h2,
  h3,
  p,
  ul,
  ol {
    margin: 0;
  }

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

  .container {
    max-width: var(--container);
    margin: 0 auto;
    padding-left: 32px;
    padding-right: 32px;
  }

  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .section {
    padding: 96px 0;
  }

  .section-soft {
    background: #EFF2EF;
  }

  .section-head {
    margin-bottom: 40px;
  }

  .overline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--brand);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.18em;
  }

  .overline::before {
    content: "";
    width: 22px;
    height: 2px;
    background: var(--accent);
    display: inline-block;
    border-radius: 2px;
  }

  .section-title {
    font-size: clamp(1.45rem, 2.2vw, 1.9rem);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.02em;
    margin-top: 10px;
    color: var(--ink);
  }

  .section-desc {
    color: var(--muted);
    margin-top: 14px;
    max-width: 700px;
    font-size: 15px;
    line-height: 1.85;
  }

  .eyebrow {
    color: #B7CEC6;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(255, 255, 255, 0.86);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    box-shadow: 0 6px 20px rgba(18, 59, 52, 0.05);
  }

  .header-top {
    border-bottom: 1px solid rgba(224, 230, 226, 0.8);
  }

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

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

  .logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--brand);
    color: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 18px rgba(14, 107, 95, 0.22);
    flex-shrink: 0;
  }

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

  .brand-copy {
    line-height: 1.15;
  }

  .brand-name {
    display: block;
    font-size: 22px;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: -0.02em;
    white-space: nowrap;
  }

  .brand-en {
    display: block;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: #8E9B96;
    margin-top: 2px;
  }

  .header-tools {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .mini-search {
    display: flex;
    align-items: center;
    background: #f1f4f1;
    border: 1px solid transparent;
    border-radius: 999px;
    padding: 0 6px 0 0;
    transition: 0.2s ease;
    height: 40px;
  }

  .mini-search:focus-within {
    border-color: var(--brand);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(14, 107, 95, 0.12);
  }

  .mini-search input {
    border: 0;
    outline: none;
    background: transparent;
    width: 192px;
    padding: 0 14px;
    font-size: 14px;
    color: var(--ink);
  }

  .mini-search button {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    background: var(--brand);
    color: #fff;
    transition: 0.2s ease;
    flex-shrink: 0;
  }

  .mini-search button svg {
    width: 15px;
    height: 15px;
  }

  .mini-search button:hover {
    background: var(--brand-dark);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 28px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    border: 1px solid transparent;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
    cursor: pointer;
    line-height: 1;
  }

  .btn-sm {
    min-height: 40px;
    padding: 0 20px;
    font-size: 14px;
    border-radius: 10px;
  }

  .btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 8px 22px rgba(232, 110, 52, 0.22);
  }

  .btn-primary:hover {
    background: #D85C25;
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(232, 110, 52, 0.3);
  }

  .btn-primary:focus-visible,
  .btn-ghost:focus-visible,
  .nav-link:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(14, 107, 95, 0.28);
  }

  .btn-ghost {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.55);
    color: #fff;
  }

  .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: #fff;
  }

  .icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
  }

  .icon-btn svg {
    width: 19px;
    height: 19px;
  }

  .site-channel-nav {
    background: var(--cream);
    border-bottom: 1px solid rgba(224, 230, 226, 0.9);
  }

  .index-nav {
    display: flex;
    align-items: center;
    height: 44px;
    overflow-x: auto;
    scrollbar-width: none;
    gap: 6px;
  }

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

  .nav-link {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    min-height: 32px;
    padding: 0 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    color: var(--muted);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
    white-space: nowrap;
  }

  .nav-link:hover {
    background: #fff;
    color: var(--brand);
    box-shadow: 0 4px 10px rgba(18, 59, 52, 0.05);
  }

  .nav-link.active {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 6px 14px rgba(14, 107, 95, 0.22);
  }

  .mobile-panel {
    display: none;
    border-top: 1px solid rgba(224, 230, 226, 0.8);
    background: #fff;
  }

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

  .mobile-panel-inner {
    padding: 14px 20px 22px;
  }

  .mobile-panel a {
    display: block;
    padding: 10px 0;
    border-bottom: 1px solid #EDF0EE;
    color: var(--ink);
    font-weight: 600;
    font-size: 15px;
  }

  .mobile-panel a:last-child {
    border-bottom: 0;
  }

  .page-hero {
    position: relative;
    overflow: hidden;
    background: var(--deep);
    padding: 90px 0 78px;
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
  }

  .hero-scrim {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11, 40, 35, 0.94), rgba(13, 69, 59, 0.78) 54%, rgba(18, 59, 52, 0.42));
    z-index: 1;
  }

  .page-hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
    max-width: 820px;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: 22px;
  }

  .breadcrumb a {
    transition: 0.2s ease;
  }

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

  .breadcrumb span {
    color: rgba(255, 255, 255, 0.4);
  }

  .page-hero h1 {
    font-size: clamp(2.1rem, 4.6vw, 3rem);
    font-weight: 750;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-top: 16px;
  }

  .hero-lead {
    font-size: 16px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.84);
    max-width: 680px;
    margin-top: 20px;
  }

  .hero-actions {
    margin-top: 34px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }

  .card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-1);
    overflow: hidden;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
  }

  .card-hover:hover {
    box-shadow: var(--shadow-2);
    transform: translateY(-3px);
  }

  .feature-wrap {
    display: grid;
    grid-template-columns: 1.03fr 0.97fr;
    gap: 56px;
    align-items: center;
  }

  .feature-media {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-2);
  }

  .feature-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 16/10;
  }

  .feature-media-cap {
    position: absolute;
    left: 16px;
    bottom: 16px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--ink);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 700;
  }

  .feature-content .tag {
    display: inline-flex;
    color: var(--brand);
    background: var(--brand-soft);
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 13px;
    font-weight: 700;
  }

  .feature-content h2 {
    font-size: clamp(1.45rem, 2.2vw, 1.9rem);
    line-height: 1.35;
    letter-spacing: -0.02em;
    margin: 22px 0 16px;
    color: var(--ink);
  }

  .feature-content p {
    color: var(--muted);
    line-height: 1.9;
    margin-top: 6px;
  }

  .feature-list {
    margin-top: 22px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 22px;
  }

  .feature-list li {
    position: relative;
    padding-left: 24px;
    color: var(--ink);
    font-size: 14px;
  }

  .feature-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.58em;
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 2px;
    transform: rotate(45deg);
  }

  .news-list {
    border-top: 1px solid var(--line);
  }

  .news-row {
    display: grid;
    grid-template-columns: 120px 130px 1fr 36px;
    gap: 28px;
    align-items: center;
    padding: 28px 16px;
    border-bottom: 1px solid var(--line);
    transition: background 0.2s ease, padding-left 0.25s ease;
  }

  .news-row:hover {
    background: rgba(228, 241, 238, 0.44);
    padding-left: 22px;
  }

  .news-date {
    color: var(--muted);
    font-size: 14px;
    font-variant-numeric: tabular-nums;
    font-weight: 600;
  }

  .news-cat {
    justify-self: start;
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    background: var(--white);
    border: 1px solid var(--line);
    color: var(--brand);
    border-radius: 999px;
    padding: 0 13px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
  }

  .news-cat.accent {
    background: var(--accent-soft);
    border-color: #F7D8C2;
    color: #B14E1F;
  }

  .news-content h3 {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.5;
  }

  .news-content h3 a {
    color: var(--ink);
    transition: color 0.2s ease;
  }

  .news-content h3 a:hover {
    color: var(--brand);
  }

  .news-content p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.8;
    margin-top: 6px;
  }

  .news-arrow {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--brand);
    background: var(--brand-soft);
    font-size: 18px;
    transition: 0.2s ease;
  }

  .news-row:hover .news-arrow {
    background: var(--brand);
    color: #fff;
    transform: translateX(3px);
  }

  .guide-strip {
    display: grid;
    grid-template-columns: 1.15fr 1fr 1fr 1fr;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #fff;
    box-shadow: var(--shadow-1);
  }

  .guide-cell {
    padding: 34px 28px;
    border-right: 1px solid var(--line);
    transition: background 0.2s ease;
  }

  .guide-cell:last-child {
    border-right: 0;
  }

  .guide-cell:hover {
    background: var(--brand-soft);
  }

  .guide-count {
    color: var(--accent);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
  }

  .guide-cell h3 {
    font-size: 18px;
    font-weight: 700;
    margin-top: 14px;
    color: var(--ink);
  }

  .guide-cell p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.85;
    margin-top: 10px;
  }

  .guide-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--brand);
    font-weight: 700;
    font-size: 14px;
    margin-top: 16px;
    transition: gap 0.2s ease;
  }

  .guide-cell:hover .guide-link {
    gap: 11px;
  }

  .split-resource {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-1);
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
  }

  .resource-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 16 / 9;
  }

  .resource-body {
    padding: 38px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .resource-body .badge {
    display: inline-flex;
    align-self: flex-start;
    background: var(--accent-soft);
    color: #B14E1F;
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.04em;
  }

  .resource-body h3 {
    font-size: 1.45rem;
    line-height: 1.4;
    font-weight: 700;
    margin-top: 16px;
    color: var(--ink);
    letter-spacing: -0.02em;
  }

  .resource-body p {
    margin-top: 14px;
    color: var(--muted);
    line-height: 1.85;
  }

  .resource-body .meta-line {
    margin-top: 18px;
    color: #92A19B;
    font-size: 13px;
  }

  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--brand);
    font-weight: 700;
    margin-top: 22px;
    transition: gap 0.2s ease;
  }

  .text-link:hover {
    gap: 12px;
  }

  .faq-list {
    max-width: 880px;
    border-top: 1px solid var(--line);
  }

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

  details.faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 24px 8px;
    font-size: 16px;
    font-weight: 700;
    color: var(--ink);
    transition: color 0.2s ease;
  }

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

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

  details.faq-item summary::after {
    content: "+";
    width: 30px;
    height: 30px;
    border-radius: 10px;
    background: var(--brand-soft);
    color: var(--brand);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 400;
    transition: transform 0.25s ease, background 0.2s ease, color 0.2s ease;
    flex-shrink: 0;
  }

  details.faq-item[open] summary::after {
    transform: rotate(45deg);
    background: var(--brand);
    color: #fff;
  }

  details.faq-item .answer {
    padding: 0 44px 26px 8px;
    color: var(--muted);
    line-height: 1.9;
    font-size: 15px;
  }

  .contact-section {
    position: relative;
    background: var(--deep);
    overflow: hidden;
  }

  .contact-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
    opacity: 0.18;
  }

  .contact-layout {
    position: relative;
    display: grid;
    grid-template-columns: 0.92fr 1.08fr;
    gap: 56px;
    align-items: center;
  }

  .contact-copy {
    color: #fff;
  }

  .contact-copy .section-title {
    color: #fff;
    margin-top: 12px;
  }

  .contact-copy .section-desc {
    color: rgba(255, 255, 255, 0.76);
  }

  .contact-list {
    margin-top: 30px;
    display: grid;
    gap: 14px;
  }

  .contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 14px;
    line-height: 1.7;
  }

  .contact-list svg {
    width: 18px;
    height: 18px;
    margin-top: 3px;
    color: #75B7AA;
    flex-shrink: 0;
  }

  .form-card {
    background: #fff;
    border-radius: 20px;
    padding: 40px 36px;
    box-shadow: 0 20px 46px rgba(0, 0, 0, 0.18);
  }

  .form-card h3 {
    font-size: 22px;
    font-weight: 750;
    color: var(--ink);
  }

  .form-card > p {
    color: var(--muted);
    font-size: 14px;
    margin-top: 8px;
  }

  .lead-form {
    margin-top: 26px;
  }

  .form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .form-field.full {
    grid-column: 1 / -1;
  }

  .form-field label {
    font-size: 13px;
    font-weight: 700;
    color: var(--ink);
  }

  .form-field label span {
    color: var(--accent);
  }

  .form-field input,
  .form-field select,
  .form-field textarea {
    border: 1px solid #D6DED9;
    background: #FBFCFA;
    border-radius: 10px;
    padding: 10px 14px;
    min-height: 46px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    color: var(--ink);
    line-height: 1.6;
    width: 100%;
  }

  .form-field textarea {
    min-height: 96px;
    resize: vertical;
  }

  .form-field input:focus,
  .form-field select:focus,
  .form-field textarea:focus {
    border-color: var(--brand);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(14, 107, 95, 0.14);
  }

  .form-tools {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 24px;
    flex-wrap: wrap;
  }

  .form-note {
    color: #a3ada8;
    font-size: 12px;
    line-height: 1.8;
    max-width: 230px;
  }

  footer {
    background: var(--deep-2);
    color: #AFBDB8;
  }

  .footer-title {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: 0.02em;
  }

  .footer-link {
    font-size: 14px;
    line-height: 2;
    color: #93A9A2;
    transition: color 0.2s ease;
  }

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

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 40px;
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    color: #71857e;
  }

  .footer-bottom a {
    color: #9fb7b0;
  }

  @media (max-width: 1080px) {
    .container {
      padding-left: 24px;
      padding-right: 24px;
    }

    .feature-wrap {
      gap: 32px;
    }

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

    .guide-cell:nth-child(2) {
      border-right: 0;
    }

    .guide-cell:nth-child(-n + 2) {
      border-bottom: 1px solid var(--line);
    }

    .contact-layout {
      grid-template-columns: 1fr;
      gap: 44px;
    }

    .news-row {
      grid-template-columns: 100px 110px 1fr 32px;
      gap: 18px;
    }

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

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

    .section {
      padding: 64px 0;
    }

    .brand-name {
      font-size: 20px;
    }

    .mini-search input {
      width: 110px;
    }

    .header-tools .btn-sm {
      display: none;
    }

    .feature-wrap {
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .feature-content h2,
    .section-title {
      font-size: 1.55rem;
    }

    .news-row {
      grid-template-columns: 1fr auto;
      gap: 10px 16px;
      padding: 24px 6px;
    }

    .news-date {
      font-size: 13px;
    }

    .news-cat {
      grid-column: 1;
    }

    .news-content {
      grid-column: 1;
    }

    .news-arrow {
      grid-column: 2;
      grid-row: 1 / 4;
    }

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

    .guide-cell {
      border-right: 0;
      border-bottom: 1px solid var(--line);
      padding: 26px 24px;
    }

    .guide-cell:last-child {
      border-bottom: 0;
    }

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

    .resource-body {
      padding: 26px 24px;
    }

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

    .form-card {
      padding: 28px 20px;
    }

    .form-tools {
      flex-direction: column;
      align-items: flex-start;
    }

    .page-hero {
      padding: 58px 0 54px;
    }

    .hero-actions {
      flex-direction: column;
      align-items: stretch;
    }

    .footer-bottom {
      flex-direction: column;
      align-items: flex-start;
    }
  }

  @media (max-width: 480px) {
    .page-hero h1 {
      font-size: 2.05rem;
    }

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

    .brand-en {
      display: none;
    }

    .mini-search input {
      width: 0;
      padding: 0;
      border: 0;
    }

    .mini-search {
      padding: 0;
      background: transparent;
      width: 40px;
      height: 40px;
      justify-content: center;
    }

    .mini-search:focus-within {
      width: auto;
      background: #fff;
    }

    .mini-search:focus-within input {
      width: 140px;
      padding: 0 14px;
    }

    .news-row {
      grid-template-columns: 1fr;
    }

    .news-arrow {
      display: none;
    }

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

    details.faq-item .answer {
      padding-right: 12px;
    }
  }

/* roulang page: article */
:root {
    --primary: #0E6B5F;
    --primary-dark: #075248;
    --primary-soft: #E4F1EE;
    --cream: #F7F8F6;
    --ink: #17211E;
    --muted: #5D6A65;
    --line: #E0E6E2;
    --action: #E86E34;
    --action-dark: #C9511F;
    --action-soft: #FFF1E8;
    --deep: #123B34;
    --footer: #0B2D26;
    --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
    --shadow: 0 10px 30px rgba(18, 59, 52, .06);
  }
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--cream);
    color: var(--ink);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }
  img {
    display: block;
    max-width: 100%;
  }
  a {
    color: inherit;
    text-decoration: none;
    outline: none;
  }
  button,
  input,
  select,
  textarea {
    font-family: inherit;
    outline: none;
    border: none;
    background: transparent;
  }
  a:focus-visible,
  button:focus-visible {
    outline: 3px solid rgba(14, 107, 95, .25);
    outline-offset: 3px;
    border-radius: 8px;
  }
  .container {
    width: 100%;
    max-width: 1332px;
    margin-inline: auto;
    padding-inline: 32px;
  }
  .readable-wrap {
    max-width: 938px;
    margin-inline: auto;
    padding-inline: 32px;
  }
  .site-head-sticky {
    position: sticky;
    top: 0;
    z-index: 60;
  }
  .site-head-sticky > header {
    background: rgba(255, 255, 255, .86);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
  }
  .logo-mark {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border-radius: 14px;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .brand-text {
    font-size: clamp(20px, 1.8vw, 24px);
    font-weight: 750;
    letter-spacing: -.02em;
    color: var(--ink);
    line-height: 1.2;
  }
  .brand-sub {
    color: var(--muted);
    font-size: 10px;
    letter-spacing: .18em;
    margin-top: 3px;
    text-transform: uppercase;
  }
  .searchbox {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 224px;
    height: 42px;
    border: 1px solid var(--line);
    background: var(--cream);
    border-radius: 999px;
    padding: 0 16px;
    transition: width .25s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
  }
  .searchbox:focus-within {
    width: 296px;
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(14, 107, 95, .10);
  }
  .searchbox svg {
    width: 16px;
    height: 16px;
    color: var(--muted);
    flex-shrink: 0;
  }
  .searchbox input {
    width: 100%;
    min-width: 0;
    color: var(--ink);
    font-size: 14px;
  }
  .searchbox input::placeholder {
    color: #9AA7A1;
  }
  .second-row-nav {
    background: rgba(247, 248, 246, .92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  .index-nav {
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .index-nav::-webkit-scrollbar {
    display: none;
  }
  .nav-link {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    height: 34px;
    padding: 0 18px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 550;
    color: var(--muted);
    transition: background .2s, color .2s, box-shadow .2s;
  }
  .nav-link:hover {
    background: var(--primary-soft);
    color: var(--primary-dark);
  }
  .nav-link.active {
    background: var(--primary);
    color: #fff;
    font-weight: 550;
    box-shadow: 0 4px 12px rgba(14, 107, 95, .18);
  }
  .menu-burger {
    width: 42px;
    height: 42px;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
    cursor: pointer;
    transition: border-color .2s, background .2s;
  }
  .menu-burger:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
  }
  .menu-burger span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--ink);
    border-radius: 99px;
    transition: transform .3s ease;
  }
  .menu-burger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .menu-burger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }
  .menu-burger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .mobile-nav-link {
    display: block;
    padding: 13px 16px;
    border-radius: 14px;
    font-size: 15px;
    font-weight: 550;
    color: var(--ink);
    transition: background .2s, color .2s;
  }
  .mobile-nav-link:hover {
    background: var(--primary-soft);
    color: var(--primary-dark);
  }
  .mobile-nav-link.active {
    background: var(--primary-soft);
    color: var(--primary-dark);
    font-weight: 700;
  }
  .btn-primary,
  .btn-outline,
  .btn-white,
  .btn-ghost-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 48px;
    padding: 0 28px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 650;
    transition: transform .2s ease, box-shadow .2s ease, background .2s, color .2s, border-color .2s;
    cursor: pointer;
    border: 1px solid transparent;
    white-space: nowrap;
  }
  .btn-primary {
    background: var(--action);
    color: #fff;
    box-shadow: 0 8px 18px rgba(232, 110, 52, .16);
  }
  .btn-primary:hover {
    background: var(--action-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 12px 24px rgba(232, 110, 52, .22);
  }
  .btn-outline {
    background: transparent;
    border-color: var(--primary);
    color: var(--primary);
  }
  .btn-outline:hover {
    background: var(--primary-soft);
    color: var(--primary-dark);
    transform: translateY(-1px);
  }
  .btn-white {
    background: #fff;
    color: var(--primary-dark);
    box-shadow: 0 8px 18px rgba(0, 0, 0, .08);
  }
  .btn-white:hover {
    background: var(--primary-soft);
    transform: translateY(-1px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, .10);
  }
  .btn-ghost-light {
    background: rgba(255, 255, 255, .08);
    border-color: rgba(255, 255, 255, .55);
    color: #fff;
  }
  .btn-ghost-light:hover {
    background: rgba(255, 255, 255, .16);
    border-color: #fff;
    transform: translateY(-1px);
  }
  .btn-compact {
    height: 42px;
    padding-inline: 20px;
    font-size: 14px;
  }
  .chip {
    display: inline-flex;
    align-items: center;
    height: 28px;
    padding: 0 14px;
    border-radius: 999px;
    background: var(--primary-soft);
    border: 1px solid rgba(14, 107, 95, .12);
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 600;
  }
  .article-hero {
    padding: 52px 0 12px;
  }
  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 22px;
  }
  .breadcrumb a:hover {
    color: var(--primary);
  }
  .breadcrumb .br-sep {
    color: #AEBAB5;
    font-size: 12px;
  }
  .breadcrumb-current {
    color: var(--ink);
    display: inline-block;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .article-title {
    font-size: clamp(2rem, 5vw, 3.05rem);
    font-weight: 800;
    line-height: 1.24;
    letter-spacing: -.022em;
    margin: 18px 0 22px;
    color: var(--ink);
  }
  .article-summary {
    margin: 0 0 24px;
    font-size: 16px;
    line-height: 1.95;
    color: #465651;
    background: linear-gradient(0deg, rgba(14, 107, 95, .03), rgba(14, 107, 95, .03));
    border: 1px solid rgba(14, 107, 95, .08);
    border-left: 4px solid var(--primary);
    border-radius: 4px 16px 16px 4px;
    padding: 18px 22px;
  }
  .meta-line {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 18px;
    color: var(--muted);
    font-size: 13.5px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
  }
  .meta-line .dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #B4C0BB;
  }
  .meta-line svg {
    width: 15px;
    height: 15px;
    margin-right: 5px;
    vertical-align: -2px;
    color: var(--primary);
  }
  .article-cover {
    margin: 38px 0 8px;
  }
  .article-cover img {
    width: 100%;
    aspect-ratio: 16 / 7;
    object-fit: cover;
    border-radius: 18px;
    box-shadow: 0 24px 60px rgba(18, 59, 52, .12);
  }
  .article-cover figcaption {
    margin-top: 12px;
    text-align: center;
    color: var(--muted);
    font-size: 13px;
  }
  .article-body {
    font-size: 16.5px;
    line-height: 1.95;
    color: #26352F;
    padding-bottom: 20px;
  }
  .article-body p {
    margin: 0 0 1.4em;
  }
  .article-body h2 {
    font-size: 26px;
    font-weight: 700;
    line-height: 1.4;
    margin: 2.1em 0 .8em;
    padding-left: 16px;
    border-left: 5px solid var(--primary);
    color: var(--ink);
  }
  .article-body h3 {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.5;
    margin: 1.9em 0 .6em;
    color: var(--ink);
  }
  .article-body ul,
  .article-body ol {
    margin: 1.2em 0 1.4em;
    padding-left: 1.4em;
  }
  .article-body ul {
    list-style: disc;
  }
  .article-body ol {
    list-style: decimal;
  }
  .article-body li {
    margin-bottom: .55em;
    line-height: 1.85;
  }
  .article-body blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-soft);
    color: var(--primary-dark);
    border-radius: 0 14px 14px 0;
    padding: 18px 22px;
    margin: 1.6em 0;
    line-height: 1.85;
  }
  .article-body a {
    color: var(--primary);
    text-decoration: underline;
    text-decoration-color: rgba(14, 107, 95, .32);
    text-underline-offset: 3px;
    transition: color .2s, text-decoration-color .2s;
  }
  .article-body a:hover {
    color: var(--primary-dark);
    text-decoration-color: var(--primary);
  }
  .article-body img {
    margin: 28px auto;
    height: auto;
    border-radius: 16px;
  }
  .article-body pre {
    background: #0B2D26;
    color: #DCEBE6;
    border-radius: 16px;
    padding: 22px;
    overflow-x: auto;
    line-height: 1.7;
    margin: 1.6em 0;
  }
  .article-body code {
    background: #E7EFEA;
    padding: 3px 7px;
    border-radius: 6px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: .92em;
    color: #16574D;
  }
  .article-body pre code {
    background: transparent;
    padding: 0;
    color: #DCEBE6;
  }
  .article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.6em 0;
    font-size: 15px;
  }
  .article-body th,
  .article-body td {
    border: 1px solid var(--line);
    padding: 12px 14px;
    text-align: left;
  }
  .article-body th {
    background: var(--cream);
    color: var(--ink);
    font-weight: 650;
  }
  .article-body hr {
    border: 0;
    border-top: 1px solid var(--line);
    margin: 2.2em 0;
  }
  .article-footnote {
    padding: 18px 0 24px;
    border-bottom: 1px solid var(--line);
    background: var(--cream);
  }
  .note-line {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px 20px;
    font-size: 13.5px;
    color: var(--muted);
  }
  .note-line strong {
    color: var(--ink);
    font-weight: 600;
  }
  .cta-strip {
    padding: 44px 0 92px;
  }
  .cta-panel {
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    background-image: linear-gradient(100deg, rgba(9, 44, 36, .95), rgba(18, 59, 52, .78)), url('/assets/images/backpic/back-2.webp');
    background-position: center;
    background-size: cover;
    padding: 64px 56px;
    text-align: center;
    color: #fff;
  }
  .cta-panel .cta-overline {
    display: inline-block;
    color: rgba(255, 255, 255, .72);
    letter-spacing: .12em;
    font-size: 13px;
    margin-bottom: 10px;
  }
  .cta-panel h2 {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 750;
    letter-spacing: -.02em;
    margin: 0 0 14px;
    line-height: 1.3;
  }
  .cta-panel p {
    max-width: 680px;
    margin: 0 auto 30px;
    color: rgba(255, 255, 255, .82);
    font-size: 15.5px;
    line-height: 1.85;
  }
  .related-section {
    background: #fff;
    padding: 88px 0 104px;
    border-top: 1px solid var(--line);
  }
  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 30px;
  }
  .section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 650;
    color: var(--primary);
    letter-spacing: .05em;
    margin-bottom: 8px;
  }
  .section-label::before {
    content: "";
    width: 22px;
    height: 2px;
    background: var(--action);
    border-radius: 99px;
  }
  .section-title {
    font-size: clamp(1.65rem, 2.5vw, 2.1rem);
    font-weight: 750;
    line-height: 1.3;
    letter-spacing: -.02em;
    color: var(--ink);
    margin: 0;
  }
  .section-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    transition: gap .2s, color .2s;
  }
  .section-link:hover {
    color: var(--primary-dark);
    gap: 12px;
  }
  .rel-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 28px;
    transition: border-color .25s, box-shadow .25s, transform .25s;
  }
  .rel-card:hover {
    border-color: rgba(14, 107, 95, .3);
    box-shadow: 0 18px 40px rgba(18, 59, 52, .09);
    transform: translateY(-3px);
  }
  .rel-card .rel-tag {
    align-self: flex-start;
    margin-bottom: 22px;
  }
  .rel-card h3 {
    margin: 0;
    font-size: 19px;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: -.01em;
    color: var(--ink);
  }
  .rel-card h3 a:hover {
    color: var(--primary);
  }
  .rel-card p {
    margin: 14px 0 22px;
    color: var(--muted);
    font-size: 14.5px;
    line-height: 1.85;
    flex: 1;
  }
  .rel-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--line);
    padding-top: 16px;
    color: var(--muted);
    font-size: 13px;
  }
  .rel-foot .arr {
    color: var(--primary);
    transition: transform .2s;
  }
  .rel-card:hover .rel-foot .arr {
    transform: translateX(4px);
  }
  .empty-state {
    text-align: center;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 90px 30px;
    margin-top: 20px;
  }
  .empty-state h1 {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 750;
    margin: 0 0 14px;
  }
  .empty-state p {
    color: var(--muted);
    font-size: 15px;
    max-width: 520px;
    margin: 0 auto 26px;
  }
  .footer-title {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: .02em;
    margin: 0 0 18px;
  }
  .footer-link {
    color: #AFBDB8;
    font-size: 14px;
    line-height: 1.8;
    transition: color .2s;
  }
  .footer-link:hover {
    color: #fff;
  }
  @media (max-width: 1023px) {
    .container,
    .readable-wrap {
      padding-inline: 24px;
    }
    .article-cover img {
      aspect-ratio: 16 / 8;
    }
    .cta-panel {
      padding: 52px 32px;
    }
  }
  @media (max-width: 767px) {
    .container,
    .readable-wrap {
      padding-inline: 16px;
    }
    body {
      font-size: 15px;
    }
    .article-hero {
      padding-top: 34px;
    }
    .article-title {
      font-size: clamp(1.85rem, 8vw, 2.4rem);
    }
    .article-summary {
      font-size: 15px;
      padding: 16px 18px;
    }
    .article-cover {
      margin-top: 28px;
    }
    .article-cover img {
      aspect-ratio: 16 / 10;
      border-radius: 14px;
    }
    .article-body {
      font-size: 16px;
    }
    .article-body h2 {
      font-size: 22px;
    }
    .article-body h3 {
      font-size: 18px;
    }
    .article-body table {
      display: block;
      overflow-x: auto;
    }
    .cta-strip {
      padding: 20px 0 64px;
    }
    .cta-panel {
      padding: 44px 20px;
      border-radius: 18px;
    }
    .cta-panel h2 {
      font-size: 1.6rem;
    }
    .related-section {
      padding: 64px 0 72px;
    }
    .rel-card {
      padding: 24px;
    }
  }
  @media (max-width: 520px) {
    .breadcrumb-current {
      max-width: 180px;
    }
    .article-title {
      letter-spacing: -.015em;
    }
    .cta-panel p {
      font-size: 14.5px;
    }
    .note-line {
      flex-direction: column;
      align-items: flex-start;
    }
  }

/* roulang page: category2 */
:root {
            --brand: #0E6B5F;
            --brand-dark: #075248;
            --brand-soft: #E4F1EE;
            --dark: #123B34;
            --bg: #F7F8F6;
            --white: #FFFFFF;
            --ink: #17211E;
            --sub: #5D6A65;
            --line: #E0E6E2;
            --accent: #E86E34;
            --accent-bg: #FFF1E8;
            --radius-lg: 18px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(18, 59, 52, .06);
            --shadow-hover: 0 16px 38px rgba(18, 59, 52, .12);
            --container: 1320px;
        }

        html {
            scroll-behavior: smooth;
        }

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

        body {
            margin: 0;
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            background: var(--bg);
            color: var(--ink);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        a:focus-visible, button:focus-visible {
            outline: 3px solid rgba(14, 107, 95, .4);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin-left: auto;
            margin-right: auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        /* 顶部双层导航 */
        .top-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, .94);
            backdrop-filter: blur(10px);
            box-shadow: 0 1px 0 rgba(23, 33, 30, .04), 0 6px 20px rgba(18, 59, 52, .03);
        }

        .sub-nav {
            background: var(--bg);
            border-top: 1px solid rgba(255, 255, 255, .8);
        }

        .pill-nav .nav-link {
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            padding: 6px 15px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: #43514C;
            transition: all .25s ease;
            flex: 0 0 auto;
        }

        .pill-nav .nav-link:hover {
            color: var(--brand);
            background: var(--brand-soft);
        }

        .pill-nav .nav-link.active {
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(14, 107, 95, .25);
        }

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

        .logo-mark {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand-soft);
            color: var(--brand);
            border-radius: 12px;
            flex: 0 0 auto;
        }
        .logo-mark svg {
            width: 24px;
            height: 24px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            background: var(--accent);
            color: #fff;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            transition: all .3s ease;
            box-shadow: 0 6px 18px rgba(232, 110, 52, .2);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: #c95a24;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(232, 110, 52, .28);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 10px rgba(232, 110, 52, .2);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            background: transparent;
            color: var(--brand);
            border: 1.5px solid var(--brand);
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            transition: all .3s ease;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: var(--brand-soft);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }

        /* 页面头部 */
        .page-hero {
            background-color: var(--brand);
            background-image: linear-gradient(135deg, rgba(7, 82, 72, .92), rgba(14, 107, 95, .78)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
            position: relative;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .85);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb span {
            margin: 0 8px;
            color: rgba(255, 255, 255, .4);
        }

        /* 章节标题 */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .18em;
            text-transform: uppercase;
            color: var(--brand);
            margin-bottom: 14px;
        }
        .section-label:before {
            content: '';
            width: 26px;
            height: 2px;
            background: var(--accent);
            display: inline-block;
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.45rem, 2.2vw, 1.9rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--ink);
            margin: 0 0 12px 0;
            letter-spacing: -0.01em;
        }

        .section-sub {
            color: var(--sub);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
        }

        /* 左侧数字导航 */
        .side-docs {
            position: sticky;
            top: 130px;
            display: flex;
            flex-direction: column;
            gap: 2px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 12px;
        }

        .side-docs a {
            padding: 10px 16px;
            border-radius: 8px;
            font-size: 14px;
            color: #43514C;
            line-height: 1.4;
            border-left: 3px solid transparent;
            transition: all .25s ease;
            font-weight: 500;
        }

        .side-docs a:hover {
            background: var(--brand-soft);
            color: var(--brand);
            border-left-color: var(--brand);
        }
        .side-docs a:active {
            background: var(--brand);
            color: #fff;
            border-left-color: var(--accent);
        }

        .side-docs .layer-mark {
            font-family: "SFMono-Regular", ui-monospace, Menlo, monospace;
            color: #8aa39b;
            font-size: 12px;
            font-weight: 400;
            margin-right: 6px;
        }

        /* 方案卡片 */
        .plan-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .plan-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            transition: all .35s ease;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .plan-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: #cadbd5;
            transform: translateY(-2px);
        }

        .plan-top {
            background: linear-gradient(135deg, #fff, #F3F7F5);
            padding: 28px 30px 22px;
            border-bottom: 1px solid #EDF1EE;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 20px;
            flex-wrap: wrap;
        }
        .plan-icon {
            width: 44px;
            height: 44px;
            background: var(--brand-soft);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
        }
        .plan-icon svg {
            width: 22px;
            height: 22px;
            color: var(--brand);
        }
        .plan-body {
            padding: 24px 30px 8px;
            flex: 1;
        }
        .plan-footer {
            padding: 14px 30px 26px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .badge-soft {
            background: var(--brand-soft);
            color: var(--brand-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 13px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            letter-spacing: .02em;
        }

        .badge-orange {
            background: var(--accent-bg);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 13px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            letter-spacing: .02em;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            line-height: 1.7;
            color: #3D4C47;
        }
        .feature-list li + li {
            margin-top: 8px;
        }
        .feature-list .check-icon {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--brand-soft);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
            margin-top: 4px;
        }
        .feature-list .check-icon svg {
            width: 11px;
            height: 11px;
            color: var(--brand);
        }

        /* 场景区分 */
        .compare-strip {
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            background: #fff;
            overflow: hidden;
        }
        .compare-row {
            display: grid;
            grid-template-columns: 1fr;
        }
        @media (min-width: 760px) {
            .compare-row:not(:last-child) {
                border-bottom: 1px solid var(--line);
            }
        }
        .compare-left {
            padding: 22px 24px;
            border-bottom: 1px solid var(--line);
        }
        @media (min-width: 760px) {
            .compare-row {
                grid-template-columns: 200px 1fr 180px;
            }
            .compare-left {
                border-bottom: none;
                display: flex;
                align-items: center;
                background: #F9FBFA;
                border-right: 1px solid var(--line);
                padding: 20px 24px;
            }
        }
        .compare-cell {
            padding: 18px 24px;
            border-bottom: 1px solid var(--line);
        }
        .compare-cell:last-child {
            border-bottom: none;
        }
        @media (min-width: 760px) {
            .compare-cell {
                display: flex;
                align-items: center;
                padding: 16px 24px;
            }
            .compare-cell:first-of-type {
                border-right: 1px solid var(--line);
            }
        }

        /* FAQ 手风琴 */
        .faq-item {
            border-bottom: 1px solid var(--line);
        }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 20px 4px;
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            transition: color .25s ease;
            line-height: 1.5;
        }
        .faq-q:hover {
            color: var(--brand);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            flex: 0 0 auto;
            border-radius: 50%;
            background: var(--brand-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            transition: all .35s ease;
        }
        .faq-icon:before,
        .faq-icon:after {
            content: '';
            position: absolute;
            background: var(--brand);
            border-radius: 2px;
            transition: all .35s ease;
        }
        .faq-icon:before {
            width: 12px;
            height: 2px;
        }
        .faq-icon:after {
            width: 2px;
            height: 12px;
        }
        .faq-item.open .faq-icon {
            background: var(--accent);
        }
        .faq-item.open .faq-icon:before,
        .faq-item.open .faq-icon:after {
            background: #fff;
        }
        .faq-item.open .faq-icon:after {
            transform: scaleY(0);
        }
        .faq-a {
            display: none;
            padding: 0 38px 22px 4px;
            color: var(--sub);
            font-size: 15px;
            line-height: 1.9;
        }
        .faq-item.open .faq-a {
            display: block;
        }

        /* 页脚 */
        .footer-title {
            font-size: 14px;
            color: #fff;
            font-weight: 600;
            letter-spacing: .04em;
            margin-bottom: 16px;
        }
        .footer-link {
            font-size: 14px;
            color: #93a9a2;
            transition: color .25s ease;
            list-style: none;
        }
        .footer-link:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 24px;
            margin-top: 48px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 13px;
            color: #71857e;
        }

        .cover-img {
            border-radius: var(--radius-md);
            object-fit: cover;
            background: #DDE6E2;
        }

        .img-frame {
            background-color: #DDE6E2;
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            min-height: 160px;
        }
        .img-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .img-frame:hover img {
            transform: scale(1.05);
        }

        .sticky-wrap {
            position: sticky;
            top: 140px;
        }

/* roulang page: category3 */
:root {
    --brand: #0E6B5F;
    --brand-deep: #075248;
    --brand-soft: #E4F1EE;
    --deep-bg: #123B34;
    --footer-deep: #0B2D26;
    --cream: #F7F8F6;
    --white: #FFFFFF;
    --ink: #17211E;
    --muted: #5D6A65;
    --line: #E0E6E2;
    --orange: #E86E34;
    --orange-soft: #FFF1E8;
    --danger-deep: #B4562A;
    --radius-lg: 18px;
    --radius-md: 12px;
    --shadow-1: 0 10px 30px rgba(18,59,52,.06);
    --shadow-2: 0 16px 44px rgba(18,59,52,.12);
    --font-sans: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
    --topbar-h: 64px;
    --nav-h: 46px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 130px;
}

body {
    background: var(--cream);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
    list-style: none;
}

button {
    background: none;
    border: none;
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    cursor: pointer;
}

input, select, textarea {
    font-family: inherit;
    font-size: 15px;
}

:focus-visible {
    outline: 3px solid rgba(14, 107, 95, .2);
    outline-offset: 2px;
}

.container {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding-left: 32px;
    padding-right: 32px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 90;
    width: 100%;
    box-shadow: 0 1px 0 rgba(18, 59, 52, .04);
}

.topbar {
    background: rgba(251, 252, 250, .92);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid rgba(224, 230, 226, .85);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: var(--topbar-h);
}

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

.logo-mark {
    width: 38px;
    height: 38px;
    padding: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    color: #fff;
    background: var(--brand);
    box-shadow: 0 6px 16px rgba(14, 107, 95, .18);
    flex-shrink: 0;
}

.logo-mark svg {
    width: 100%;
    height: 100%;
}

.brand-copy {
    display: inline-flex;
    flex-direction: column;
    line-height: 1.16;
}

.brand-copy strong {
    font-size: 23px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--ink);
}

.brand-copy small {
    font-size: 11px;
    letter-spacing: .1em;
    color: var(--muted);
    margin-top: 4px;
    font-weight: 600;
}

.desktop-search {
    flex: 0 1 440px;
    display: flex;
    justify-content: center;
    margin-left: auto;
}

.search-wrap {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    height: 42px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 0 6px 0 14px;
    transition: border-color .25s ease, box-shadow .25s ease;
}

.search-wrap:focus-within {
    border-color: var(--brand);
    box-shadow: 0 0 0 4px rgba(14, 107, 95, .08);
}

.search-wrap svg {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
    color: var(--muted);
}

.search-wrap input {
    border: 0;
    outline: 0;
    background: transparent;
    flex: 1;
    min-width: 0;
    font-size: 14px;
    color: var(--ink);
}

.search-wrap input::placeholder {
    color: #899791;
}

.search-submit {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 9px;
    color: #fff;
    background: var(--brand);
    flex-shrink: 0;
    transition: background .25s, transform .25s;
}

.search-submit:hover,
.search-submit:focus-visible {
    background: var(--brand-deep);
}

.search-submit svg {
    color: #fff;
    width: 15px;
    height: 15px;
}

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

.header-icon-btn {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 11px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
    transition: border-color .25s, background .25s, transform .25s;
}

.header-icon-btn:hover,
.header-icon-btn:focus-visible {
    border-color: var(--brand);
    background: var(--brand-soft);
    color: var(--brand-deep);
}

.header-icon-btn svg {
    width: 19px;
    height: 19px;
}

.mobile-menu-panel {
    display: none;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 12px 16px 14px;
}

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

.mobile-menu-panel .search-wrap {
    max-width: none;
    margin-bottom: 10px;
}

.mobile-menu-panel .search-wrap input {
    flex: 1;
    min-width: 0;
}

.channel-bar {
    background: var(--cream);
}

.channel-bar .container {
    overflow: hidden;
}

.channel-nav {
    display: flex;
    align-items: center;
    height: var(--nav-h);
    overflow-x: auto;
    gap: 6px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

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

.nav-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    height: 34px;
    padding: 0 16px;
    border-radius: 99px;
    font-size: 14px;
    font-weight: 600;
    color: var(--muted);
    white-space: nowrap;
    border: 1px solid transparent;
    transition: color .2s, background .2s, box-shadow .2s;
}

.nav-link:hover {
    color: var(--brand-deep);
    background: #fff;
    box-shadow: 0 4px 12px rgba(18, 59, 52, .06);
}

.nav-link.active {
    color: var(--brand-deep);
    background: var(--brand-soft);
    border-color: rgba(14, 107, 95, .08);
    box-shadow: 0 4px 12px rgba(14, 107, 95, .08);
    font-weight: 700;
}

.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 28px;
    border: 1px solid transparent;
    border-radius: 11px;
    font-size: 15px;
    font-weight: 650;
    line-height: 1;
    letter-spacing: 0;
    white-space: nowrap;
    transition: background .25s ease, border-color .25s ease, color .25s ease, box-shadow .25s ease, transform .25s ease;
}

.btn svg {
    width: 16px;
    height: 16px;
}

.btn-primary {
    background: var(--orange);
    color: #fff;
    box-shadow: 0 8px 20px rgba(232, 110, 52, .16);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background: #cc591f;
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(232, 110, 52, .2);
}

.btn-ghost-light {
    border-color: rgba(255, 255, 255, .78);
    color: #fff;
    background: rgba(255, 255, 255, .06);
}

.btn-ghost-light:hover,
.btn-ghost-light:focus-visible {
    background: rgba(255, 255, 255, .14);
    border-color: #fff;
    transform: translateY(-1px);
}

.btn-dark-green {
    background: var(--brand);
    color: #fff;
}

.btn-dark-green:hover,
.btn-dark-green:focus-visible {
    background: var(--brand-deep);
    transform: translateY(-1px);
    box-shadow: var(--shadow-1);
}

.btn-sm {
    min-height: 40px;
    padding: 0 18px;
    font-size: 14px;
    border-radius: 10px;
}

.cta-nav-btn {
    min-height: 42px;
    padding: 0 18px;
    border-radius: 11px;
}

.mobile-flex-link {
    min-height: 38px;
}

.hero-cat-page {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: 94px 0 50px;
    color: #fff;
}

.hero-cat-page::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -2;
    background:
        linear-gradient(78deg, rgba(5, 59, 51, .94) 0%, rgba(11, 78, 66, .86) 42%, rgba(14, 107, 95, .62) 100%),
        url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
}

.hero-cat-page::after {
    content: "";
    position: absolute;
    right: -120px;
    bottom: -160px;
    width: 420px;
    height: 420px;
    z-index: -1;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, .14);
    box-shadow: 0 0 0 60px rgba(255, 255, 255, .04), 0 0 0 120px rgba(255, 255, 255, .025);
}

.hero-cat-content {
    max-width: 820px;
}

.hero-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, .72);
    margin-bottom: 26px;
}

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

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .1em;
    color: #F7B294;
    background: rgba(255, 255, 255, .1);
    border-radius: 99px;
    padding: 7px 14px;
    margin-bottom: 18px;
}

.hero-eyebrow::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--orange);
}

.hero-title {
    font-size: clamp(2.1rem, 4.6vw, 3rem);
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: #fff;
    max-width: 760px;
}

.hero-lead {
    max-width: 760px;
    margin-top: 20px;
    font-size: 16px;
    line-height: 1.85;
    color: rgba(255, 255, 255, .86);
}

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

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 58px;
    padding-top: 34px;
    border-top: 1px solid rgba(255, 255, 255, .18);
}

.hero-stat strong {
    display: block;
    font-size: 30px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: #fff;
    font-variant-numeric: tabular-nums;
}

.hero-stat strong i {
    font-style: normal;
    color: #F7A77E;
    font-size: 22px;
    margin-left: 2px;
}

.hero-stat span {
    display: block;
    margin-top: 7px;
    font-size: 13px;
    color: rgba(255, 255, 255, .76);
}

.main-section {
    padding: 96px 0;
}

.section-white {
    background: #fff;
}

.section-heading {
    max-width: 780px;
    margin-bottom: 44px;
}

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

.section-overline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    letter-spacing: .1em;
    font-weight: 700;
    color: var(--orange);
    margin-bottom: 12px;
}

.section-heading h2 {
    font-size: clamp(1.45rem, 2.2vw, 1.9rem);
    font-weight: 750;
    line-height: 1.3;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-top: 4px;
}

.section-heading .section-sub {
    margin-top: 16px;
    font-size: 15.5px;
    line-height: 1.8;
    color: var(--muted);
}

.industry-strip {
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 46px 0;
}

.industry-strip .section-heading {
    margin-bottom: 22px;
    max-width: 100%;
}

.industry-strip .section-heading p {
    margin-top: 8px;
}

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

.pill-date {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 15px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--ink);
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: 99px;
    transition: all .25s ease;
}

.pill-date:hover,
.pill-date:focus-visible {
    border-color: var(--brand);
    color: var(--brand-deep);
    background: var(--brand-soft);
}

.pill-date svg {
    width: 14px;
    height: 14px;
    color: var(--brand);
}

.case-results-section {
    background: #fff;
    padding: 96px 0 72px;
    border-bottom: 1px solid var(--line);
}

.case-row {
    display: grid;
    grid-template-columns: 1fr 1.05fr;
    gap: clamp(32px, 4.8vw, 78px);
    align-items: center;
    padding: 62px 0;
    border-top: 1px solid var(--line);
}

.case-row:first-of-type {
    border-top: none;
    padding-top: 0;
}

.case-row.rev .case-media {
    order: 2;
}

.case-row.rev .case-body {
    order: 1;
}

.case-media {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: var(--brand-soft);
    box-shadow: var(--shadow-1);
}

.case-media a {
    display: block;
}

.case-media img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform .55s ease, opacity .3s ease;
}

.case-media:hover img {
    transform: scale(1.035);
}

.case-media .case-media-tag {
    position: absolute;
    left: 16px;
    top: 16px;
    padding: 6px 13px;
    background: rgba(11, 45, 38, .82);
    color: #fff;
    border-radius: 99px;
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: .04em;
    backdrop-filter: blur(6px);
}

.case-body {
    position: relative;
}

.case-no {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--orange);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .1em;
}

.case-no::before {
    content: "";
    width: 28px;
    height: 2px;
    background: var(--orange);
}

.case-body h3 {
    font-size: clamp(1.35rem, 1.8vw, 1.75rem);
    line-height: 1.3;
    font-weight: 750;
    letter-spacing: -0.02em;
    margin-top: 12px;
    margin-bottom: 14px;
}

.case-purpose {
    font-size: 13px;
    font-weight: 700;
    color: var(--brand);
    background: var(--brand-soft);
    display: inline-flex;
    border-radius: 99px;
    padding: 4px 11px;
    margin-bottom: 10px;
}

.case-desc {
    color: var(--muted);
    line-height: 1.8;
    font-size: 15.5px;
}

.result-band {
    margin-top: 23px;
    background: var(--orange-soft);
    border-left: 3px solid var(--orange);
    padding: 14px 17px;
    border-radius: 0 12px 12px 0;
    font-size: 14.5px;
    line-height: 1.75;
    color: #552913;
}

.result-band strong {
    display: block;
    color: #8B3C18;
    font-size: 17px;
    font-weight: 750;
    margin-bottom: 4px;
}

.case-meta-stack {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 24px;
}

.case-meta-item {
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 11px 13px;
    min-width: 0;
}

.case-meta-item span {
    display: block;
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 3px;
}

.case-meta-item strong {
    display: block;
    font-size: 14px;
    line-height: 1.5;
    font-weight: 650;
    color: var(--ink);
}

.quote-band {
    background: var(--deep-bg);
    color: #fff;
    padding: 64px 0;
}

.quote-band blockquote {
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
    font-size: clamp(1.15rem, 1.5vw, 1.4rem);
    line-height: 1.7;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.quote-band footer {
    margin-top: 18px;
    color: rgba(255, 255, 255, .7);
    font-size: 13px;
    letter-spacing: .14em;
}

.process-section {
    padding: 96px 0;
    background: var(--cream);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 50px;
    margin-top: 44px;
}

.process-step {
    border-top: 2px solid rgba(14, 107, 95, .16);
    padding-top: 22px;
    position: relative;
}

.process-step .step-num {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .1em;
    color: var(--brand);
}

.process-step h3 {
    margin: 9px 0 8px;
    font-size: 17px;
    line-height: 1.5;
    font-weight: 700;
    color: var(--ink);
}

.process-step p {
    font-size: 14.5px;
    line-height: 1.75;
    color: var(--muted);
}

.faq-section {
    background: #fff;
    padding: 96px 0;
}

.faq-list {
    max-width: 900px;
    margin: 20px auto 0;
}

.faq-item {
    border-bottom: 1px solid var(--line);
    transition: background .25s;
}

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 25px 5px;
    cursor: pointer;
    list-style: none;
    font-size: 16px;
    font-weight: 650;
    color: var(--ink);
    transition: color .2s;
}

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

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

.faq-item .faq-plus {
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: var(--cream);
    transition: transform .3s, border-color .3s, box-shadow .3s;
}

.faq-item .faq-plus svg {
    width: 14px;
    height: 14px;
    color: var(--brand);
}

.faq-item[open] .faq-plus {
    transform: rotate(45deg);
    border-color: var(--brand);
    color: var(--brand);
    background: var(--brand-soft);
}

.faq-item .faq-answer {
    padding: 0 5px 26px;
    color: var(--muted);
    line-height: 1.85;
    font-size: 15px;
    max-width: 860px;
}

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

.contact-cta {
    position: relative;
    isolation: isolate;
    padding: 96px 0;
    color: #fff;
    background: var(--footer-deep);
}

.contact-cta::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -2;
    background:
        linear-gradient(115deg, rgba(5, 39, 32, .96) 0%, rgba(5, 62, 52, .9) 50%, rgba(11, 88, 71, .82) 100%),
        url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
}

.contact-heading {
    max-width: 720px;
    margin-bottom: 38px;
}

.contact-heading h2 {
    font-size: clamp(1.45rem, 2.2vw, 1.9rem);
    line-height: 1.3;
    font-weight: 750;
    letter-spacing: -0.02em;
    color: #fff;
}

.contact-heading .section-overline {
    color: #F7A77E;
}

.contact-heading p {
    margin-top: 15px;
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255, 255, 255, .78);
}

.contact-form-card {
    max-width: 980px;
    margin: 0 auto;
    background: #fff;
    color: var(--ink);
    border-radius: 22px;
    padding: clamp(22px, 4vw, 40px);
    box-shadow: 0 18px 46px rgba(2, 20, 16, .22);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 17px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.field.full {
    grid-column: 1 / -1;
}

.field label {
    font-size: 14px;
    font-weight: 650;
    color: var(--ink);
}

.field label span {
    color: var(--orange);
    margin-left: 3px;
}

.field input,
.field select,
.field textarea {
    width: 100%;
    border: 1px solid #D6DED9;
    background: #FCFDFC;
    border-radius: 10px;
    padding: 11px 14px;
    color: var(--ink);
    transition: border-color .25s, background .25s, box-shadow .25s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: 0;
    border-color: var(--brand);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(14, 107, 95, .08);
}

.field input::placeholder,
.field textarea::placeholder {
    color: #99A59F;
}

.field select {
    cursor: pointer;
}

.field textarea {
    min-height: 110px;
    resize: vertical;
}

.form-submit-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    margin-top: 20px;
}

.form-privacy {
    margin-top: 17px;
    font-size: 12.5px;
    color: #8A9690;
    line-height: 1.6;
}

.site-footer {
    background: var(--footer-deep);
    color: #AFBDB8;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-brand .logo-mark {
    width: 40px;
    height: 40px;
}

.footer-brand strong {
    color: #fff;
    font-size: 20px;
    line-height: 1.2;
    font-weight: 800;
}

.footer-brand span {
    display: block;
    color: #71857e;
    font-size: 11px;
    letter-spacing: .13em;
    margin-top: 4px;
    font-weight: 600;
}

.footer-title {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-link {
    display: inline-block;
    font-size: 14px;
    color: #93A9A2;
    padding: 5px 0;
    line-height: 1.5;
    transition: color .2s, transform .2s;
}

.footer-link:hover,
.footer-link:focus-visible {
    color: #fff;
    transform: translateX(2px);
}

.footer-icon-list li {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    font-size: 14px;
    color: #93a9a2;
    line-height: 1.7;
}

.footer-icon-list svg {
    width: 17px;
    height: 17px;
    margin-top: 3px;
    flex-shrink: 0;
    color: #3f8f81;
}

.copyright {
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding-top: 24px;
    margin-top: 30px;
    font-size: 13px;
    color: #7e958e;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
}

@media (max-width: 1024px) {
    .case-row,
    .case-row.rev {
        grid-template-columns: 1fr;
        gap: 34px;
    }
    .case-row.rev .case-media {
        order: 0;
    }
    .case-row.rev .case-body {
        order: 0;
    }
    .process-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 767px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }
    .topbar-inner {
        min-height: 58px;
        gap: 10px;
    }
    .brand-copy small {
        display: none;
    }
    .brand-copy strong {
        font-size: 21px;
    }
    .site-logo .logo-mark {
        width: 34px;
        height: 34px;
    }
    .desktop-search {
        display: none;
    }
    .header-actions {
        gap: 6px;
    }
    .header-cta {
        min-height: 36px;
        padding: 0 12px;
        font-size: 13px;
        border-radius: 9px;
    }
    .header-icon-btn {
        width: 36px;
        height: 36px;
    }
    .channel-nav .nav-link {
        height: 32px;
        padding: 0 14px;
        font-size: 13.5px;
    }
    .hero-cat-page {
        padding: 62px 0 34px;
    }
    .hero-title {
        font-size: 2rem;
    }
    .hero-stats {
        grid-template-columns: 1fr 1fr;
        gap: 24px 18px;
        margin-top: 38px;
        padding-top: 24px;
    }
    .hero-stat strong {
        font-size: 24px;
    }
    .main-section,
    .case-results-section,
    .faq-section,
    .process-section,
    .contact-cta {
        padding: 64px 0;
    }
    .case-results-section {
        padding-top: 60px;
    }
    .case-row {
        padding: 48px 0 40px;
        gap: 28px;
    }
    .case-row:first-of-type {
        padding-top: 0;
    }
    .case-media img {
        max-height: 300px;
    }
    .case-meta-stack {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .process-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
    .field.full {
        grid-column: auto;
    }
    .form-submit-row .btn {
        width: 100%;
    }
    .copyright {
        flex-direction: column;
        gap: 4px;
    }
}
@media (max-width: 520px) {
    .hero-actions .btn {
        width: 100%;
    }
    .contact-form-card {
        padding: 20px;
    }
    .footer-brand strong {
        font-size: 18px;
    }
}