/* roulang page: index */
:root{
    --pine:#1C6D67;
    --pine-dark:#0F3F3C;
    --pine-mid:#13524E;
    --brass:#C8913C;
    --brass-dark:#A47027;
    --cream:#FAF9F5;
    --paper:#FFFFFF;
    --sand:#F2EDE5;
    --line:#E2DCD0;
    --ink:#263330;
    --muted:#5C6965;
    --muted-light:#84908C;
  }
  *{ box-sizing:border-box; }
  html{ scroll-behavior:smooth; }
  body{
    margin:0;
    background:var(--cream);
    color:var(--ink);
    font-family:-apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
    font-size:15px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  button, input, textarea{ font-family:inherit; }
  h1,h2,h3{ line-height:1.3; }
  ::selection{ background:var(--brass); color:#fff; }
  :focus-visible{ outline:2px solid var(--brass); outline-offset:2px; }

  .container-x{ max-width:1260px; margin:0 auto; padding-left:1rem; padding-right:1rem; }
  .container-narrow{ max-width:880px; margin:0 auto; padding-left:1rem; padding-right:1rem; }

  .font-tight{ font-variant-numeric:tabular-nums; }

  .line-btn{
    display:inline-flex;
    align-items:center;
    gap:0.4rem;
    min-height:44px;
    padding:0 1.4rem;
    border-radius:8px;
    border:1px solid var(--pine);
    color:var(--pine);
    font-weight:600;
    transition:all .2s ease;
  }
  .line-btn:hover{ background:rgba(28,109,103,.08); color:var(--pine-mid); border-color:var(--pine-mid); }
  .solid-btn{
    display:inline-flex;
    align-items:center;
    gap:0.4rem;
    min-height:44px;
    padding:0 1.4rem;
    border-radius:8px;
    background:var(--pine);
    color:#fff;
    font-weight:600;
    transition:all .2s ease;
    border:1px solid transparent;
  }
  .solid-btn:hover{ background:var(--pine-mid); box-shadow:0 6px 18px rgba(19,82,78,.22); }
  .gold-btn{
    display:inline-flex;
    align-items:center;
    gap:0.4rem;
    min-height:44px;
    padding:0 1.4rem;
    border-radius:8px;
    background:var(--brass);
    color:#fff;
    font-weight:600;
    transition:all .2s ease;
  }
  .gold-btn:hover{ background:var(--brass-dark); box-shadow:0 6px 18px rgba(164,112,39,.25); }

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:0.5rem;
    font-size:13px;
    font-weight:600;
    letter-spacing:.04em;
    color:var(--brass-dark);
  }
  .eyebrow::before{
    content:"";
    width:22px;
    height:2px;
    background:var(--brass);
  }

  .article-card{
    transition:transform .2s ease, border-color .2s ease, box-shadow .2s ease;
  }
  .article-card:hover{
    transform:translateY(-2px);
    border-color:var(--brass) !important;
    box-shadow:0 8px 24px rgba(20,40,36,.08);
  }

  details.faq-item summary::-webkit-details-marker{ display:none; }
  details.faq-item summary{ list-style:none; cursor:pointer; }
  details.faq-item summary .faq-icon{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:24px;
    height:24px;
    border-radius:999px;
    border:1px solid var(--line);
    color:var(--pine);
    font-weight:400;
    font-size:18px;
    line-height:1;
    transition:all .2s ease;
    flex-shrink:0;
  }
  details.faq-item[open] summary .faq-icon{
    transform:rotate(45deg);
    background:var(--pine);
    color:#fff;
    border-color:var(--pine);
  }

  .text-link-arrow{
    display:inline-flex;
    align-items:center;
    gap:.25rem;
    color:var(--pine);
    font-weight:600;
    transition:gap .2s ease;
  }
  .text-link-arrow:hover{ gap:.55rem; color:var(--pine-mid); }

  .cover-shade{
    background:linear-gradient(to right, rgba(15,63,60,.92), rgba(15,63,60,.72));
  }

  .feature-cover{
    overflow:hidden;
  }
  .feature-cover img{
    transition:transform .3s ease;
  }
  .group:hover .feature-cover img{
    transform:scale(1.02);
  }

  .point-list li{
    position:relative;
    padding-left:1.1rem;
  }
  .point-list li::before{
    content:"";
    position:absolute;
    left:0;
    top:.68em;
    width:6px;
    height:6px;
    border-radius:9999px;
    background:var(--brass);
  }

  .promo-bg{
    background-image:linear-gradient(to top, rgba(15,63,60,.78), rgba(15,63,60,.9)), url('/assets/images/backpic/back-2.png');
    background-position:center;
    background-size:cover;
    background-repeat:no-repeat;
  }

  @media (max-width:640px){
    body{ font-size:14px; }
    .mobile-nav-link{ font-size:15px; padding:10px 0; }
  }

/* roulang page: article */
:root {
      --pine: #1C6D67;
      --pine-dark: #0F3F3C;
      --pine-mid: #13524E;
      --brass: #C8913C;
      --brass-dark: #A47027;
      --canvas: #FAF9F5;
      --surface: #FFFFFF;
      --sand: #F2EDE5;
      --line: #E2DCD0;
      --ink: #263330;
      --muted: #5C6965;
      --weak: #84908C;
      --radius-card: 12px;
      --radius-img: 16px;
      --radius-btn: 6px;
      --shadow-card: 0 1px 2px rgba(20,40,36,.04), 0 4px 16px rgba(20,40,36,.05);
      --shadow-lift: 0 8px 24px rgba(20,40,36,.09);
    }

    ::selection {
      background: rgba(28,109,103,.14);
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--canvas);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

    img,
    svg,
    video {
      max-width: 100%;
      height: auto;
    }

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

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

    .container-x {
      width: 100%;
      max-width: 80rem;
      margin-inline: auto;
      padding-inline: 1.25rem;
    }

    @media (min-width: 1024px) {
      .container-x {
        padding-inline: 2rem;
      }
    }

    .container-narrow {
      width: 100%;
      max-width: 920px;
      margin-inline: auto;
      padding-inline: 1.25rem;
    }

    @media (min-width: 1024px) {
      .container-narrow {
        padding-inline: 0;
      }
    }

    .solid-btn,
    .outline-btn,
    .brass-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: .375rem;
      min-height: 44px;
      padding: .625rem 1.25rem;
      border-radius: var(--radius-btn);
      font-size: 15px;
      font-weight: 600;
      line-height: 1;
      white-space: nowrap;
      transition: background-color .2s, border-color .2s, color .2s, transform .2s, box-shadow .2s;
    }

    .solid-btn {
      background: var(--pine);
      color: #fff;
      border: 1px solid var(--pine);
    }

    .solid-btn:hover {
      background: var(--pine-mid);
      border-color: var(--pine-mid);
      box-shadow: var(--shadow-lift);
      transform: translateY(-1px);
    }

    .solid-btn:active {
      transform: translateY(0);
    }

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

    .outline-btn:hover {
      background: rgba(28,109,103,.06);
      color: var(--pine-dark);
      border-color: var(--pine-dark);
    }

    .brass-btn {
      background: var(--brass);
      color: #fff;
      border: 1px solid var(--brass);
    }

    .brass-btn:hover {
      background: var(--brass-dark);
      border-color: var(--brass-dark);
    }

    .section-pad {
      padding: 3rem 0;
    }

    @media (min-width: 1024px) {
      .section-pad {
        padding: 5rem 0;
      }
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: .5rem;
      padding: .325rem .875rem;
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: 999px;
      font-size: 13px;
      color: var(--pine);
      font-weight: 500;
      letter-spacing: .03em;
    }

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

    .hover-card {
      transition: transform .25s, box-shadow .25s, border-color .25s;
    }

    .hover-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-lift);
      border-color: rgba(28,109,103,.35);
    }

    .tag-chip {
      display: inline-flex;
      align-items: center;
      gap: .25rem;
      padding: .325rem .9rem;
      border: 1px solid rgba(200,145,60,.5);
      border-radius: 999px;
      font-size: 13px;
      color: var(--brass-dark);
      background: rgba(200,145,60,.05);
      transition: background-color .2s, border-color .2s, color .2s;
    }

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

    .mlink-list li {
      position: relative;
      padding-left: 1.4rem;
    }

    .mlink-list li::before {
      content: "→";
      position: absolute;
      left: 0;
      top: 0;
      color: var(--brass);
      font-weight: 600;
    }

    .arrow-link {
      display: inline-flex;
      align-items: center;
      gap: .375rem;
      color: var(--pine);
      font-weight: 500;
      font-size: 15px;
      transition: gap .2s, color .2s;
    }

    .arrow-link:hover {
      gap: .75rem;
      color: var(--pine-dark);
    }

    .footer-sec-title {
      font-size: 14px;
      font-weight: 600;
      color: rgba(242,237,229,.8);
      letter-spacing: .02em;
    }

    .footer-link {
      color: rgba(242,237,229,.7);
      transition: color .2s;
    }

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

    /* 正文排版 */
    .article-prose {
      color: #2E3C38;
      font-size: 16px;
      line-height: 1.9;
      overflow-wrap: break-word;
    }

    .article-prose p {
      margin: 0 0 1.375rem;
    }

    .article-prose h2 {
      font-size: 1.5rem;
      font-weight: 700;
      line-height: 1.4;
      margin-top: 2.25rem;
      margin-bottom: 1rem;
      color: var(--ink);
      scroll-margin-top: 6rem;
    }

    .article-prose h3 {
      font-size: 1.2rem;
      font-weight: 700;
      line-height: 1.5;
      margin-top: 1.75rem;
      margin-bottom: .875rem;
      padding-left: .75rem;
      border-left: 4px solid var(--pine);
      color: var(--ink);
      scroll-margin-top: 6rem;
    }

    .article-prose h4 {
      font-size: 1.05rem;
      font-weight: 600;
      margin-top: 1.5rem;
      margin-bottom: .625rem;
      color: var(--ink);
    }

    .article-prose ul,
    .article-prose ol {
      margin: 0 0 1.375rem;
      padding-left: 1.375rem;
    }

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

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

    .article-prose li {
      margin-bottom: .4rem;
      padding-left: .25rem;
    }

    .article-prose blockquote {
      margin: 1.5rem 0;
      padding: 1rem 1.25rem;
      background: var(--sand);
      border-left: 4px solid var(--pine);
      border-radius: 0 12px 12px 0;
      color: var(--muted);
      font-size: 15.5px;
    }

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

    .article-prose a {
      color: var(--pine);
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 3px;
      transition: color .2s;
    }

    .article-prose a:hover {
      color: var(--pine-dark);
    }

    .article-prose img {
      border-radius: var(--radius-img);
      margin: 1.75rem 0;
    }

    .article-prose table {
      width: 100%;
      border-collapse: collapse;
      display: block;
      overflow-x: auto;
      margin: 1.5rem 0;
      font-size: 14px;
      line-height: 1.6;
    }

    .article-prose table thead {
      background: var(--sand);
    }

    .article-prose th,
    .article-prose td {
      border: 1px solid var(--line);
      padding: .625rem .875rem;
      text-align: left;
      vertical-align: top;
    }

    .article-prose th {
      font-weight: 600;
      color: var(--ink);
      font-variant-numeric: tabular-nums;
    }

    .article-prose td {
      color: var(--muted);
      font-variant-numeric: tabular-nums;
    }

    .article-prose pre {
      background: var(--pine-dark);
      color: #EAF1EF;
      border-radius: 12px;
      padding: 1.25rem;
      overflow-x: auto;
      font-size: 14px;
      line-height: 1.7;
      margin: 1.5rem 0;
    }

    .article-prose code {
      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
      font-size: .9em;
    }

    .article-prose :not(pre)>code {
      background: rgba(28,109,103,.08);
      padding: .15em .35em;
      border-radius: 6px;
    }

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

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

    .faq-details summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 1.25rem .25rem;
      font-size: 16px;
      font-weight: 600;
      color: var(--ink);
    }

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

    .faq-details summary::after {
      content: "+";
      font-size: 22px;
      line-height: 1;
      color: var(--pine);
      font-weight: 400;
      transition: transform .2s;
      font-variant-numeric: tabular-nums;
    }

    .faq-details[open] summary::after {
      content: "−";
    }

    .faq-details .faq-answer {
      padding: 0 .25rem 1.25rem;
      color: var(--muted);
      font-size: 15px;
      max-width: 720px;
    }

    .faq-details p {
      margin: 0;
    }

    .breadcrumb-link {
      color: var(--muted);
      transition: color .2s;
    }

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

    .breadcrumb-sep {
      color: var(--weak);
      padding: 0 .5rem;
    }

    @media (max-width: 640px) {
      .article-prose {
        font-size: 15px;
      }
      .article-prose h2 {
        font-size: 1.3rem;
      }
      .article-prose h3 {
        font-size: 1.12rem;
      }
    }

/* roulang page: category2 */
:root {
    --pine: #1C6D67;
    --pine-dark: #0F3F3C;
    --pine-mid: #13524E;
    --brass: #C8913C;
    --brass-deep: #A47027;
    --canvas: #FAF9F5;
    --surface: #FFFFFF;
    --cream: #F2EDE5;
    --line: #E2DCD0;
    --ink: #263330;
    --muted: #5C6965;
    --faint: #84908C;
    --radius-card: 12px;
    --radius-panel: 16px;
    --shadow-soft: 0 1px 2px rgba(20,40,36,.04), 0 4px 16px rgba(20,40,36,.05);
    --shadow-lift: 0 8px 24px rgba(20,40,36,.09);
  }
  * {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
    background: var(--canvas);
    color: var(--ink);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    font-variant-numeric: tabular-nums;
  }
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
  button, input {
    font-family: inherit;
  }
  .container-x {
    width: 100%;
    max-width: 1240px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
  @media (min-width: 768px) {
    .container-x {
      padding-left: 2rem;
      padding-right: 2rem;
    }
  }
  /* 数字表格 */
  .num {
    font-variant-numeric: tabular-nums;
  }
  /* focus-visible */
  a:focus-visible,
  button:focus-visible {
    outline: 2px solid var(--pine);
    outline-offset: 2px;
  }
  input:focus-visible {
    outline: none;
    border-color: var(--pine) !important;
    box-shadow: 0 0 0 4px rgba(28, 109, 103, 0.12);
  }
  /* 按钮 */
  .solid-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    min-height: 44px;
    padding: .5rem 1.4rem;
    background: var(--pine);
    color: #fff;
    border-radius: 6px;
    font-size: .9rem;
    font-weight: 600;
    border: 1px solid var(--pine);
    transition: background .2s, border-color .2s, transform .15s, box-shadow .2s;
  }
  .solid-btn:hover {
    background: var(--pine-mid);
    border-color: var(--pine-mid);
    box-shadow: 0 6px 18px rgba(19, 82, 78, .18);
  }
  .solid-btn:active {
    transform: translateY(1px);
  }
  .ghost-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    min-height: 44px;
    padding: .5rem 1.4rem;
    background: transparent;
    color: var(--pine);
    border: 1px solid var(--pine);
    border-radius: 6px;
    font-size: .9rem;
    font-weight: 600;
    transition: background .2s, color .2s, border-color .2s;
  }
  .ghost-btn:hover {
    background: rgba(28, 109, 103, .06);
    color: var(--pine-mid);
    border-color: var(--pine-mid);
  }
  .brass-btn-dark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    min-height: 44px;
    padding: .5rem 1.4rem;
    background: var(--brass);
    color: #0F3F3C;
    border-radius: 6px;
    font-size: .9rem;
    font-weight: 700;
    transition: background .2s, transform .15s, box-shadow .2s;
  }
  .brass-btn-dark:hover {
    background: #dba44d;
    box-shadow: 0 6px 18px rgba(200, 145, 60, .3);
  }
  .arrow-link {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-size: .9rem;
    font-weight: 600;
    color: var(--pine);
    transition: gap .2s, color .2s;
  }
  .arrow-link:hover {
    gap: .55rem;
    color: var(--pine-mid);
  }
  /* 资讯卡 hover — 边框与阴影 */
  .card-hover {
    transition: transform .2s, box-shadow .25s, border-color .2s;
  }
  .card-hover:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lift);
    border-color: rgba(28, 109, 103, .28);
  }
  /* FAQ 手风琴 */
  .faq-item summary {
    list-style: none;
    cursor: pointer;
  }
  .faq-item summary::-webkit-details-marker {
    display: none;
  }
  .faq-icon {
    position: relative;
    width: 20px;
    height: 20px;
    flex: none;
    color: var(--pine);
  }
  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    background: currentColor;
    border-radius: 2px;
    transition: transform .2s;
  }
  .faq-icon::before {
    width: 12px;
    height: 2px;
    left: 4px;
    top: 9px;
  }
  .faq-icon::after {
    width: 2px;
    height: 12px;
    left: 9px;
    top: 4px;
  }
  details[open] > summary .faq-icon::after {
    transform: rotate(90deg);
  }
  /* 分类页2 filter 标签 */
  .filter-pill {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: .2rem .9rem;
    border-radius: 999px;
    border: 1px solid var(--pine);
    color: var(--pine);
    font-size: .8rem;
    font-weight: 600;
    transition: background .2s, color .2s;
    background: transparent;
  }
  .filter-pill:hover {
    background: rgba(28, 109, 103, .06);
  }
  .filter-pill.active {
    background: var(--pine);
    color: #fff;
  }
  /* 动态小卡片 */
  .mini-card {
    background: var(--surface);
    border: 1px solid #eee7dc;
    border-radius: 12px;
    transition: box-shadow .2s, border-color .2s, transform .2s;
  }
  .mini-card:hover {
    border-color: rgba(28, 109, 103, .18);
    box-shadow: var(--shadow-soft);
    transform: translateY(-1px);
  }
  /* 表格 */
  .entry-table { width: 100%; border-collapse: collapse; }
  @media (max-width: 767px) {
    .table-scroll { overflow-x: auto; display:block; }
    .table-scroll table { min-width: 540px; }
  }
  /* 顶部渐变 */
  .hero-gradient {
    background: linear-gradient(180deg, rgba(15,63,60,.55), rgba(15,63,60,.82)), url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  }
  .strip-line {
    height: 2px;
    width: 36px;
    background: var(--brass);
    border-radius: 2px;
  }
  .base-grid {
    background-image:
      linear-gradient(rgba(28,109,103,.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(28,109,103,.05) 1px, transparent 1px);
    background-size: 32px 32px;
  }

/* roulang page: category1 */
:root {
    --pine: #1C6D67;
    --pine-dark: #0F3F3C;
    --pine-mid: #13524E;
    --brass: #C8913C;
    --brass-dark: #A47027;
    --canvas: #FAF9F5;
    --surface: #FFFFFF;
    --cream: #F2EDE5;
    --ink: #263330;
    --muted: #5C6965;
    --faint: #84908C;
    --line: #E2DCD0;
    --radius-card: 12px;
    --radius-soft: 16px;
    --shadow-card: 0 1px 2px rgba(20,40,36,.04), 0 4px 16px rgba(20,40,36,.05);
    --shadow-lift: 0 8px 24px rgba(20,40,36,.09);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", "Noto Sans SC", sans-serif;
    background-color: var(--canvas);
    color: var(--ink);
    font-size: 15px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    font-variant-numeric: tabular-nums;
  }

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

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

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

  .container-x {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .06em;
    color: var(--pine);
  }

  .eyebrow::before {
    content: "";
    width: 22px;
    height: 2px;
    background-color: var(--brass);
    border-radius: 2px;
  }

  .eyebrow-light::before {
    background-color: rgba(255,255,255,.6);
  }

  .eyebrow-light {
    color: rgba(255,255,255,.78);
  }

  .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border: 1px solid rgba(200,145,60,.5);
    background-color: rgba(255,255,255,.6);
    border-radius: 999px;
    color: var(--brass-dark);
    font-size: 12.5px;
    font-weight: 600;
    line-height: 1.4;
  }

  .solid-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 20px;
    border-radius: 6px;
    background-color: var(--pine);
    color: #fff;
    border: 1px solid transparent;
    font-weight: 600;
    line-height: 1.2;
    box-shadow: 0 1px 2px rgba(20,40,36,.06);
    transition: background-color .2s ease, transform .2s ease, box-shadow .2s ease, opacity .2s ease;
    cursor: pointer;
  }

  .solid-btn:hover {
    background-color: var(--pine-mid);
    box-shadow: var(--shadow-lift);
  }

  .solid-btn:active {
    transform: translateY(1px) scale(.995);
  }

  .outline-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 20px;
    border-radius: 6px;
    background-color: transparent;
    color: var(--pine);
    border: 1px solid rgba(28,109,103,.45);
    font-weight: 600;
    line-height: 1.2;
    transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
  }

  .outline-btn:hover {
    background-color: rgba(28,109,103,.07);
    border-color: var(--pine);
  }

  .outline-btn:active {
    transform: translateY(1px) scale(.995);
  }

  .line-link {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    color: var(--pine);
    font-weight: 600;
    font-size: 14px;
  }

  .line-link .arrow {
    display: inline-flex;
    transition: transform .2s ease;
  }

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

  .tag {
    display: inline-flex;
    align-items: center;
    border: 1px solid rgba(200,145,60,.4);
    color: var(--brass-dark);
    background-color: rgba(255,255,255,.55);
    font-size: 12px;
    padding: 2px 9px;
    border-radius: 999px;
    line-height: 1.6;
    white-space: nowrap;
  }

  .entry-row {
    display: grid;
    grid-template-columns: 52px 1fr auto;
    gap: 16px;
    padding: 22px 8px;
    border-bottom: 1px solid var(--line);
    transition: background-color .2s ease;
    border-radius: 8px;
  }

  .entry-row:hover {
    background-color: rgba(28,109,103,.035);
  }

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

  .entry-num {
    font-size: 14px;
    font-weight: 700;
    color: var(--brass);
    padding-top: 3px;
    font-variant-numeric: tabular-nums;
    letter-spacing: .02em;
  }

  .entry-row h3 {
    font-size: 17px;
    color: var(--ink);
    font-weight: 700;
    line-height: 1.45;
    margin: 0 0 6px;
  }

  .entry-row h3 a {
    transition: color .2s ease;
  }

  .entry-row h3 a:hover {
    color: var(--pine);
  }

  .entry-summary {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
    margin: 0 0 10px;
    max-width: 76ch;
  }

  .entry-more {
    align-self: center;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 36px;
    padding: 6px 12px;
    border-radius: 6px;
    color: var(--pine);
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    border: 1px solid rgba(28,109,103,.18);
    transition: border-color .2s ease, background-color .2s ease, transform .2s ease;
  }

  .entry-more:hover {
    border-color: rgba(28,109,103,.5);
    background-color: rgba(28,109,103,.06);
    transform: translateX(2px);
  }

  .side-card {
    background-color: var(--surface);
    border-radius: 14px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-card);
    overflow: hidden;
  }

  .side-card-head {
    border-left: 3px solid var(--brass);
    padding: 18px 22px 0;
  }

  .side-card-head h2 {
    margin: 6px 0 0;
    font-size: 17px;
    font-weight: 700;
  }

  .side-card-head p {
    margin: 6px 0 16px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.6;
  }

  .side-nav {
    list-style: none;
    margin: 0;
    padding: 4px 16px 18px;
  }

  .side-nav li + li {
    border-top: 1px solid rgba(226,220,208,.7);
  }

  .side-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 12px 8px;
    font-size: 14px;
    color: var(--muted);
    transition: color .2s ease, transform .2s ease, padding-left .2s ease;
  }

  .side-nav a:hover {
    color: var(--pine);
    transform: translateX(4px);
  }

  .side-note {
    padding: 16px 22px 22px;
    border-top: 1px solid var(--line);
    background-color: rgba(250,249,245,.6);
  }

  .side-note h3 {
    margin: 10px 0 8px;
    font-size: 14px;
    color: var(--ink);
    font-weight: 700;
  }

  .side-note ul {
    margin: 0 0 12px;
    padding: 0;
    list-style: none;
  }

  .side-note li {
    position: relative;
    padding-left: 16px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.75;
    margin-bottom: 6px;
  }

  .side-note li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 10px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background-color: var(--brass);
  }

  .hop-card {
    display: block;
    background-color: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 24px;
    min-height: 152px;
    box-shadow: var(--shadow-card);
    transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
  }

  .hop-card:hover {
    box-shadow: var(--shadow-lift);
    border-color: rgba(28,109,103,.35);
    transform: translateY(-3px);
  }

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

  .arrow-icon {
    display: inline-flex;
    transition: transform .2s ease;
  }

  .data-probe {
    position: relative;
    overflow: hidden;
  }

  .data-probe::after {
    content: "";
    position: absolute;
    right: -44px;
    bottom: -62px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 30px solid rgba(255,255,255,.05);
    pointer-events: none;
  }

  .faq-item {
    border-bottom: 1px solid var(--line);
    padding: 4px 0;
  }

  .faq-item summary {
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 28px;
    padding: 18px 4px 12px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.5;
    transition: color .2s ease;
  }

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

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

  .faq-item summary::after {
    content: "+";
    flex: 0 0 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 99px;
    background-color: rgba(28,109,103,.08);
    color: var(--pine);
    font-size: 20px;
    font-weight: 300;
    line-height: 1;
  }

  .faq-item[open] summary::after {
    content: "−";
  }

  .faq-item p {
    margin: 0;
    padding: 0 44px 22px 4px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.8;
    max-width: 78ch;
  }

  input, textarea {
    width: 100%;
    border-radius: 6px;
    border: 1px solid var(--line);
    background-color: #fff;
    color: var(--ink);
    padding: 10px 14px;
    line-height: 1.5;
    transition: border-color .2s ease, box-shadow .2s ease;
  }

  input:focus, textarea:focus {
    outline: none;
    border-color: var(--pine);
    box-shadow: 0 0 0 3px rgba(28,109,103,.12);
  }

  a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible {
    outline: 3px solid rgba(28,109,103,.45);
    outline-offset: 3px;
  }

  .form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--muted);
  }

  @media (max-width: 1023px) {
    .container-x {
      padding-left: 20px;
      padding-right: 20px;
    }
  }

  @media (max-width: 639px) {
    body {
      font-size: 14px;
    }

    .entry-row {
      grid-template-columns: 34px 1fr;
      gap: 12px;
      padding: 16px 4px;
    }

    .entry-more {
      grid-column: 2;
      justify-self: start;
      margin-top: 4px;
    }

    .entry-row h3 {
      font-size: 16px;
    }

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

    .hop-card {
      padding: 20px;
      min-height: 0;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: .01ms !important;
      transition-duration: .01ms !important;
    }
  }
</script>
<link rel="stylesheet" href="/assets/css/style.css">
<style id="roulang-fallback-style">
  body{font-family:"Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.7;color:#1f2937;background:#f7f9fc}
  header,footer{background:#0f172a;color:#fff} header a,footer a{color:inherit;text-decoration:none}
  main section{padding:64px 0} .container{max-width:1180px}
  .hero,.site-hero{background:linear-gradient(135deg,#0f172a,#1d4ed8);color:#fff}
  .card,.feature-card,.service-card,.category-card{border:1px solid rgba(15,23,42,.08);box-shadow:0 12px 32px rgba(15,23,42,.08);border-radius:16px}
  .btn,.button,a[class*="btn"]{border-radius:999px;font-weight:700}
  img{max-width:100%;height:auto} @media(max-width:768px){main section{padding:42px 0} h1{font-size:2rem}}