/* roulang page: index */
:root {
      --color-primary: #0f8f86;
      --color-primary-dark: #08756e;
      --color-primary-soft: #e6f5f3;
      --color-secondary: #f2a84b;
      --color-secondary-soft: #fff2df;
      --color-ink: #172322;
      --color-text: #344744;
      --color-muted: #6c7c79;
      --color-light: #f7fbfa;
      --color-cream: #fffaf2;
      --color-white: #ffffff;
      --color-border: #dce8e5;
      --shadow-soft: 0 18px 50px rgba(20, 68, 63, .10);
      --shadow-card: 0 14px 34px rgba(20, 68, 63, .08);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1180px;
      --header-height: 76px;
      --ease: all .22s ease;
    }

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

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

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", Arial, sans-serif;
      color: var(--color-text);
      background: linear-gradient(180deg, #f8fcfb 0%, #ffffff 38%, #f9fbf9 100%);
      line-height: 1.72;
      font-size: 16px;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--ease);
    }

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

    button,
    input,
    textarea {
      font: inherit;
    }

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

    input,
    textarea {
      width: 100%;
      border: 1px solid var(--color-border);
      background: rgba(255,255,255,.9);
      border-radius: 14px;
      padding: 13px 15px;
      color: var(--color-ink);
      outline: none;
      transition: var(--ease);
    }

    input:focus,
    textarea:focus,
    button:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(15,143,134,.22);
      outline-offset: 3px;
    }

    input:focus,
    textarea:focus {
      border-color: rgba(15,143,134,.65);
      box-shadow: 0 0 0 4px rgba(15,143,134,.08);
    }

    .container {
      width: min(var(--container), calc(100% - 44px));
      margin: 0 auto;
    }

    .section {
      padding: 88px 0;
      position: relative;
    }

    .section-header {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 34px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--color-primary-dark);
      font-weight: 700;
      font-size: 14px;
      background: var(--color-primary-soft);
      border: 1px solid rgba(15,143,134,.12);
      padding: 7px 12px;
      border-radius: 999px;
      margin-bottom: 14px;
    }

    .section-kicker::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--color-primary);
      box-shadow: 0 0 0 5px rgba(15,143,134,.12);
    }

    h1,
    h2,
    h3 {
      color: var(--color-ink);
      line-height: 1.18;
      letter-spacing: -0.02em;
    }

    h1 {
      font-size: clamp(34px, 5vw, 58px);
      font-weight: 800;
    }

    h2 {
      font-size: clamp(26px, 3.2vw, 38px);
      font-weight: 780;
    }

    h3 {
      font-size: 21px;
      font-weight: 760;
    }

    .section-desc {
      max-width: 660px;
      color: var(--color-muted);
      font-size: 17px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: 999px;
      font-weight: 700;
      border: 1px solid transparent;
      transition: var(--ease);
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary) 0%, #0c766f 100%);
      box-shadow: 0 14px 28px rgba(15,143,134,.22);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      background: linear-gradient(135deg, #0b827a 0%, #06665f 100%);
      box-shadow: 0 18px 34px rgba(15,143,134,.28);
    }

    .btn-secondary {
      color: var(--color-primary-dark);
      background: rgba(255,255,255,.78);
      border-color: rgba(15,143,134,.22);
    }

    .btn-secondary:hover {
      background: var(--color-primary-soft);
      transform: translateY(-2px);
      border-color: rgba(15,143,134,.38);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 700;
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      border: 1px solid rgba(15,143,134,.12);
    }

    .badge-warm {
      color: #9a5c11;
      background: var(--color-secondary-soft);
      border-color: rgba(242,168,75,.25);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-height);
      background: rgba(255,255,255,.88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(220,232,229,.75);
      box-shadow: 0 8px 28px rgba(23,35,34,.04);
    }

    .nav-wrap {
      height: var(--header-height);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 850;
      color: var(--color-ink);
      font-size: 22px;
      flex: 0 0 auto;
    }

    .logo-mark {
      width: 39px;
      height: 39px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #fff;
      background:
        radial-gradient(circle at 27% 28%, rgba(255,255,255,.95) 0 3px, transparent 4px),
        radial-gradient(circle at 70% 32%, rgba(255,255,255,.82) 0 3px, transparent 4px),
        radial-gradient(circle at 53% 72%, rgba(255,255,255,.78) 0 3px, transparent 4px),
        linear-gradient(135deg, var(--color-primary), #074f4a);
      box-shadow: 0 10px 20px rgba(15,143,134,.20);
      position: relative;
    }

    .logo-mark::after {
      content: "";
      position: absolute;
      inset: 11px;
      border: 1px solid rgba(255,255,255,.46);
      border-radius: 10px;
      transform: rotate(8deg);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 5px;
      list-style: none;
      margin-left: auto;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 9px 14px;
      border-radius: 999px;
      color: var(--color-text);
      font-weight: 650;
      font-size: 15px;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
    }

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

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      border: 1px solid var(--color-border);
      background: #fff;
      align-items: center;
      justify-content: center;
    }

    .menu-toggle span {
      width: 18px;
      height: 2px;
      background: var(--color-ink);
      border-radius: 2px;
      position: relative;
      transition: var(--ease);
    }

    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
      width: 18px;
      height: 2px;
      background: var(--color-ink);
      border-radius: 2px;
      transition: var(--ease);
    }

    .menu-toggle span::before {
      top: -6px;
    }

    .menu-toggle span::after {
      top: 6px;
    }

    .menu-toggle.open span {
      background: transparent;
    }

    .menu-toggle.open span::before {
      top: 0;
      transform: rotate(45deg);
    }

    .menu-toggle.open span::after {
      top: 0;
      transform: rotate(-45deg);
    }

    .hero {
      position: relative;
      min-height: calc(100vh - var(--header-height));
      padding: 92px 0 74px;
      overflow: hidden;
      background:
        linear-gradient(120deg, rgba(244,253,251,.96), rgba(255,255,255,.88) 45%, rgba(255,246,232,.90)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(15,143,134,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,143,134,.055) 1px, transparent 1px);
      background-size: 34px 34px;
      mask-image: linear-gradient(90deg, rgba(0,0,0,.72), transparent 78%);
      pointer-events: none;
    }

    .hero::after {
      content: "";
      position: absolute;
      right: -150px;
      top: 80px;
      width: 420px;
      height: 420px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(15,143,134,.18), rgba(15,143,134,0) 68%);
      pointer-events: none;
    }

    .hero-layout {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
      align-items: center;
      gap: 54px;
    }

    .hero-copy {
      max-width: 690px;
    }

    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 13px;
      border-radius: 999px;
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(15,143,134,.18);
      color: var(--color-primary-dark);
      font-weight: 750;
      margin-bottom: 22px;
      box-shadow: 0 10px 26px rgba(23,35,34,.05);
    }

    .hero-eyebrow i {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--color-secondary);
      box-shadow: 0 0 0 6px rgba(242,168,75,.18);
      display: inline-block;
    }

    .hero-title span {
      color: var(--color-primary-dark);
      position: relative;
      display: inline-block;
    }

    .hero-title span::after {
      content: "";
      position: absolute;
      left: 2px;
      right: 2px;
      bottom: 5px;
      height: 12px;
      background: rgba(242,168,75,.22);
      z-index: -1;
      border-radius: 999px;
    }

    .hero-subtitle {
      margin-top: 22px;
      font-size: 19px;
      color: var(--color-text);
      max-width: 630px;
    }

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

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 30px;
    }

    .hero-showcase {
      display: grid;
      gap: 18px;
    }

    .showcase-main {
      min-height: 390px;
      border-radius: var(--radius-xl);
      padding: 26px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.62), rgba(255,255,255,.88)),
        url("/assets/images/backpic/back-1.jpg") center/cover no-repeat;
      border: 1px solid rgba(255,255,255,.76);
      box-shadow: var(--shadow-soft);
      position: relative;
      overflow: hidden;
    }

    .showcase-main::before {
      content: "";
      position: absolute;
      inset: 22px;
      border-radius: 24px;
      border: 1px solid rgba(15,143,134,.13);
      pointer-events: none;
    }

    .pulse-map {
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 24% 25%, rgba(15,143,134,.32) 0 4px, transparent 5px),
        radial-gradient(circle at 68% 22%, rgba(242,168,75,.38) 0 5px, transparent 6px),
        radial-gradient(circle at 78% 66%, rgba(15,143,134,.24) 0 4px, transparent 5px),
        radial-gradient(circle at 34% 72%, rgba(15,143,134,.18) 0 6px, transparent 7px);
      opacity: .85;
    }

    .showcase-panel {
      position: absolute;
      left: 28px;
      right: 28px;
      bottom: 28px;
      border-radius: 22px;
      padding: 20px;
      background: rgba(255,255,255,.88);
      backdrop-filter: blur(14px);
      border: 1px solid rgba(220,232,229,.9);
      box-shadow: 0 14px 36px rgba(23,35,34,.08);
    }

    .showcase-panel h2 {
      font-size: 24px;
      margin-bottom: 10px;
    }

    .showcase-panel p {
      color: var(--color-muted);
    }

    .mini-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .mini-card {
      background: rgba(255,255,255,.92);
      border: 1px solid var(--color-border);
      border-radius: 20px;
      padding: 18px;
      box-shadow: 0 10px 28px rgba(20,68,63,.06);
    }

    .mini-card strong {
      display: block;
      color: var(--color-ink);
      font-size: 22px;
      line-height: 1.2;
      margin-bottom: 5px;
    }

    .mini-card span {
      color: var(--color-muted);
      font-size: 14px;
    }

    .value-strip {
      padding-top: 34px;
      padding-bottom: 80px;
      background: #fff;
    }

    .value-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: -30px;
      position: relative;
      z-index: 3;
    }

    .value-card {
      background: rgba(255,255,255,.96);
      border: 1px solid var(--color-border);
      border-radius: 20px;
      padding: 22px;
      box-shadow: var(--shadow-card);
      transition: var(--ease);
    }

    .value-card:hover {
      transform: translateY(-4px);
      border-color: rgba(15,143,134,.28);
      box-shadow: 0 18px 42px rgba(20,68,63,.12);
    }

    .value-icon {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      display: grid;
      place-items: center;
      font-weight: 850;
      margin-bottom: 16px;
    }

    .value-card h3 {
      font-size: 18px;
      margin-bottom: 8px;
    }

    .value-card p {
      color: var(--color-muted);
      font-size: 15px;
    }

    .service-section {
      background: linear-gradient(180deg, #fff 0%, var(--color-light) 100%);
    }

    .service-layout {
      display: grid;
      grid-template-columns: 380px minmax(0, 1fr);
      gap: 28px;
      align-items: start;
    }

    .scenario-list {
      display: grid;
      gap: 14px;
      position: sticky;
      top: 98px;
    }

    .scenario-item {
      border: 1px solid var(--color-border);
      background: rgba(255,255,255,.92);
      border-radius: 18px;
      padding: 18px 18px 18px 52px;
      position: relative;
      transition: var(--ease);
    }

    .scenario-item::before {
      content: attr(data-no);
      position: absolute;
      left: 17px;
      top: 18px;
      width: 24px;
      height: 24px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      background: var(--color-primary);
      color: #fff;
      font-weight: 800;
      font-size: 12px;
    }

    .scenario-item:hover {
      transform: translateX(4px);
      border-color: rgba(15,143,134,.32);
      box-shadow: var(--shadow-card);
    }

    .scenario-item h3 {
      font-size: 18px;
      margin-bottom: 6px;
    }

    .scenario-item p {
      color: var(--color-muted);
      font-size: 15px;
    }

    .feature-board {
      display: grid;
      grid-template-columns: 1.08fr .92fr;
      gap: 20px;
    }

    .feature-card {
      border: 1px solid var(--color-border);
      background: var(--color-white);
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: var(--ease);
    }

    .feature-card:hover {
      transform: translateY(-4px);
      border-color: rgba(15,143,134,.3);
      box-shadow: var(--shadow-soft);
    }

    .feature-image {
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: var(--color-primary-soft);
    }

    .feature-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .45s ease;
    }

    .feature-card:hover .feature-image img {
      transform: scale(1.04);
    }

    .feature-content {
      padding: 24px;
    }

    .feature-content h3 {
      margin: 13px 0 10px;
    }

    .feature-content p {
      color: var(--color-muted);
      margin-bottom: 18px;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--color-primary-dark);
      font-weight: 750;
    }

    .text-link:hover {
      gap: 12px;
      color: var(--color-primary);
    }

    .insight-panel {
      border-radius: var(--radius-xl);
      padding: 26px;
      background: linear-gradient(150deg, #123b38, #0f6f68);
      color: rgba(255,255,255,.84);
      box-shadow: var(--shadow-soft);
      min-height: 100%;
      position: relative;
      overflow: hidden;
    }

    .insight-panel::after {
      content: "";
      position: absolute;
      right: -60px;
      bottom: -70px;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      background: rgba(242,168,75,.22);
    }

    .insight-panel h3 {
      color: #fff;
      margin: 14px 0 12px;
      font-size: 25px;
    }

    .insight-panel p {
      position: relative;
      z-index: 1;
    }

    .check-list {
      list-style: none;
      display: grid;
      gap: 12px;
      margin-top: 22px;
      position: relative;
      z-index: 1;
    }

    .check-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
    }

    .check-list li::before {
      content: "✓";
      flex: 0 0 22px;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: rgba(255,255,255,.16);
      color: #fff;
      font-weight: 800;
      margin-top: 2px;
    }

    .latest-section {
      background: #fff;
    }

    .news-layout {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 22px;
      align-items: stretch;
    }

    .news-card {
      display: flex;
      flex-direction: column;
      min-height: 220px;
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: 22px;
      padding: 23px;
      box-shadow: 0 10px 28px rgba(20,68,63,.06);
      transition: var(--ease);
    }

    .news-card:hover {
      transform: translateY(-4px);
      border-color: rgba(15,143,134,.32);
      box-shadow: var(--shadow-card);
    }

    .news-card.featured {
      min-height: 100%;
      padding: 0;
      overflow: hidden;
    }

    .news-cover {
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: var(--color-primary-soft);
    }

    .news-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .45s ease;
    }

    .news-card.featured:hover .news-cover img {
      transform: scale(1.04);
    }

    .news-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .news-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
      align-items: center;
      color: var(--color-muted);
      font-size: 13px;
      margin-bottom: 12px;
    }

    .news-card h3 {
      margin-bottom: 10px;
      font-size: 22px;
    }

    .news-card h3 a:hover {
      color: var(--color-primary-dark);
    }

    .news-card p {
      color: var(--color-muted);
      margin-bottom: 20px;
    }

    .news-list {
      display: grid;
      gap: 14px;
    }

    .news-list .news-card {
      min-height: auto;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 18px;
      align-items: center;
    }

    .news-list .news-card h3 {
      font-size: 19px;
    }

    .news-arrow {
      width: 40px;
      height: 40px;
      border-radius: 14px;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      display: grid;
      place-items: center;
      font-weight: 900;
      transition: var(--ease);
    }

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

    .empty-state {
      grid-column: 1 / -1;
      border: 1px dashed rgba(15,143,134,.32);
      border-radius: var(--radius-xl);
      padding: 38px;
      background: linear-gradient(135deg, #fbfffe, #fffaf2);
      text-align: center;
      box-shadow: 0 10px 28px rgba(20,68,63,.05);
    }

    .empty-icon {
      width: 54px;
      height: 54px;
      margin: 0 auto 16px;
      border-radius: 18px;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      display: grid;
      place-items: center;
      font-size: 24px;
      font-weight: 850;
    }

    .evidence-section {
      background: linear-gradient(180deg, var(--color-light), #fff);
    }

    .evidence-grid {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 18px;
    }

    .evidence-card {
      border-radius: 22px;
      padding: 24px;
      background: rgba(255,255,255,.92);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
      min-height: 210px;
    }

    .evidence-card strong {
      display: block;
      color: var(--color-primary-dark);
      font-size: 32px;
      line-height: 1;
      margin-bottom: 12px;
    }

    .evidence-card h3 {
      font-size: 19px;
      margin-bottom: 10px;
    }

    .evidence-card p {
      color: var(--color-muted);
      font-size: 15px;
    }

    .workflow {
      background: #fff;
    }

    .steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      counter-reset: step;
      position: relative;
    }

    .step-card {
      counter-increment: step;
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: 22px;
      padding: 24px;
      box-shadow: 0 10px 28px rgba(20,68,63,.06);
      position: relative;
      transition: var(--ease);
    }

    .step-card:hover {
      transform: translateY(-3px);
      border-color: rgba(15,143,134,.3);
      box-shadow: var(--shadow-card);
    }

    .step-no {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: var(--color-ink);
      color: #fff;
      font-weight: 850;
      margin-bottom: 18px;
    }

    .step-card h3 {
      font-size: 19px;
      margin-bottom: 9px;
    }

    .step-card p {
      color: var(--color-muted);
      font-size: 15px;
    }

    .contact-section {
      background:
        linear-gradient(135deg, rgba(230,245,243,.82), rgba(255,242,223,.62)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
    }

    .contact-card {
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      gap: 32px;
      align-items: stretch;
      border-radius: var(--radius-xl);
      padding: 28px;
      background: rgba(255,255,255,.90);
      border: 1px solid rgba(255,255,255,.82);
      box-shadow: var(--shadow-soft);
      backdrop-filter: blur(12px);
    }

    .contact-visual {
      border-radius: 24px;
      overflow: hidden;
      min-height: 420px;
      position: relative;
      background: var(--color-primary-soft);
    }

    .contact-visual img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .visual-caption {
      position: absolute;
      left: 20px;
      right: 20px;
      bottom: 20px;
      border-radius: 18px;
      padding: 18px;
      background: rgba(18,59,56,.82);
      color: rgba(255,255,255,.86);
      backdrop-filter: blur(10px);
    }

    .visual-caption strong {
      display: block;
      color: #fff;
      font-size: 20px;
      margin-bottom: 5px;
    }

    .contact-form {
      display: grid;
      gap: 15px;
      align-content: center;
      padding: 10px 8px;
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .field label {
      display: block;
      font-weight: 700;
      color: var(--color-ink);
      margin-bottom: 7px;
      font-size: 14px;
    }

    textarea {
      min-height: 118px;
      resize: vertical;
    }

    .form-note {
      color: var(--color-muted);
      font-size: 14px;
    }

    .faq-section {
      background: #fff;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 360px minmax(0, 1fr);
      gap: 34px;
      align-items: start;
    }

    .faq-aside {
      border-radius: var(--radius-xl);
      padding: 26px;
      background: linear-gradient(180deg, var(--color-primary-soft), #fff);
      border: 1px solid rgba(15,143,134,.16);
      position: sticky;
      top: 98px;
    }

    .faq-aside p {
      margin-top: 14px;
      color: var(--color-muted);
    }

    .faq-list {
      display: grid;
      gap: 13px;
    }

    .faq-item {
      border: 1px solid var(--color-border);
      border-radius: 20px;
      background: var(--color-white);
      overflow: hidden;
      transition: var(--ease);
    }

    .faq-item:hover {
      border-color: rgba(15,143,134,.28);
      box-shadow: 0 10px 26px rgba(20,68,63,.06);
    }

    .faq-question {
      width: 100%;
      min-height: 66px;
      padding: 18px 22px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      color: var(--color-ink);
      text-align: left;
      font-weight: 780;
    }

    .faq-question .icon {
      flex: 0 0 30px;
      width: 30px;
      height: 30px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      transition: var(--ease);
      font-size: 20px;
      line-height: 1;
    }

    .faq-item.active .faq-question .icon {
      transform: rotate(45deg);
      background: var(--color-primary);
      color: #fff;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .28s ease;
    }

    .faq-answer p {
      padding: 0 22px 20px;
      color: var(--color-muted);
    }

    .cta-section {
      padding-top: 20px;
      padding-bottom: 96px;
      background: #fff;
    }

    .cta-card {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 24px;
      align-items: center;
      border-radius: 30px;
      padding: 34px;
      background:
        radial-gradient(circle at 16% 24%, rgba(242,168,75,.24), transparent 30%),
        linear-gradient(135deg, #123b38, #0d7b73);
      color: rgba(255,255,255,.86);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
      position: relative;
    }

    .cta-card::after {
      content: "";
      position: absolute;
      right: -44px;
      top: -44px;
      width: 160px;
      height: 160px;
      border: 1px solid rgba(255,255,255,.18);
      border-radius: 50%;
    }

    .cta-card h2 {
      color: #fff;
      margin-bottom: 10px;
    }

    .cta-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      position: relative;
      z-index: 1;
    }

    .cta-card .btn-secondary {
      background: rgba(255,255,255,.12);
      border-color: rgba(255,255,255,.26);
      color: #fff;
    }

    .cta-card .btn-secondary:hover {
      background: rgba(255,255,255,.2);
    }

    .site-footer {
      background: #102725;
      color: rgba(255,255,255,.72);
      padding: 54px 0 26px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: 34px;
      padding-bottom: 34px;
      border-bottom: 1px solid rgba(255,255,255,.10);
    }

    .footer-logo {
      color: #fff;
      margin-bottom: 14px;
    }

    .footer-about p {
      max-width: 430px;
    }

    .footer-title {
      color: #fff;
      font-weight: 780;
      margin-bottom: 14px;
    }

    .footer-links {
      list-style: none;
      display: grid;
      gap: 9px;
    }

    .footer-links a:hover {
      color: #fff;
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .footer-bottom {
      padding-top: 22px;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      font-size: 14px;
      color: rgba(255,255,255,.56);
    }

    .back-top {
      color: rgba(255,255,255,.78);
    }

    .back-top:hover {
      color: #fff;
    }

    @media (max-width: 1024px) {
      .hero-layout,
      .service-layout,
      .faq-layout,
      .contact-card {
        grid-template-columns: 1fr;
      }

      .hero {
        min-height: auto;
      }

      .scenario-list,
      .faq-aside {
        position: static;
      }

      .value-grid,
      .steps {
        grid-template-columns: repeat(2, 1fr);
      }

      .feature-board,
      .news-layout {
        grid-template-columns: 1fr;
      }

      .contact-visual {
        min-height: 320px;
      }
    }

    @media (max-width: 768px) {
      :root {
        --header-height: 66px;
      }

      .container {
        width: min(100% - 36px, var(--container));
      }

      .section {
        padding: 60px 0;
      }

      .site-header {
        height: var(--header-height);
      }

      .nav-wrap {
        height: var(--header-height);
      }

      .menu-toggle {
        display: inline-flex;
      }

      .header-actions .btn {
        display: none;
      }

      .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 18px;
        right: 18px;
        display: grid;
        gap: 6px;
        padding: 14px;
        background: rgba(255,255,255,.96);
        border: 1px solid var(--color-border);
        border-radius: 20px;
        box-shadow: var(--shadow-soft);
        transform: translateY(-12px);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: var(--ease);
      }

      .nav-menu.open {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
      }

      .nav-link {
        width: 100%;
        justify-content: center;
      }

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

      .hero-layout {
        gap: 34px;
      }

      .hero-subtitle {
        font-size: 17px;
      }

      .hero-actions .btn {
        flex: 1 1 100%;
      }

      .showcase-main {
        min-height: 320px;
      }

      .value-strip {
        padding-bottom: 58px;
      }

      .value-grid,
      .evidence-grid,
      .steps,
      .mini-grid {
        grid-template-columns: 1fr;
      }

      .section-header {
        display: block;
      }

      .section-desc {
        margin-top: 12px;
      }

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

      .news-arrow {
        justify-self: start;
      }

      .form-row,
      .footer-grid,
      .cta-card {
        grid-template-columns: 1fr;
      }

      .cta-actions .btn {
        width: 100%;
      }
    }

    @media (max-width: 520px) {
      body {
        font-size: 15px;
      }

      .container {
        width: min(100% - 32px, var(--container));
      }

      .logo {
        font-size: 20px;
      }

      .logo-mark {
        width: 36px;
        height: 36px;
        border-radius: 13px;
      }

      .hero-eyebrow {
        font-size: 14px;
      }

      .showcase-panel {
        left: 16px;
        right: 16px;
        bottom: 16px;
        padding: 16px;
      }

      .feature-content,
      .news-body,
      .contact-card,
      .cta-card {
        padding: 22px;
      }

      .empty-state {
        padding: 28px 18px;
      }

      .footer-bottom {
        display: grid;
      }
    }

/* roulang page: article */
:root {
      --color-primary: #0f8f86;
      --color-primary-dark: #08756e;
      --color-primary-soft: #e6f5f3;
      --color-secondary: #f2a84b;
      --color-secondary-soft: #fff2df;
      --color-ink: #172322;
      --color-text: #344744;
      --color-muted: #6c7c79;
      --color-light: #f7fbfa;
      --color-cream: #fffaf2;
      --color-white: #ffffff;
      --color-border: #dce8e5;
      --shadow-soft: 0 18px 50px rgba(20, 68, 63, .10);
      --shadow-card: 0 14px 34px rgba(20, 68, 63, .08);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1180px;
      --header-height: 76px;
      --ease: all .22s ease;
    }

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

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

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", Arial, sans-serif;
      color: var(--color-text);
      background: linear-gradient(180deg, #f8fcfb 0%, #ffffff 38%, #f9fbf9 100%);
      line-height: 1.72;
      font-size: 16px;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--ease);
    }

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

    ul, ol {
      padding-left: 0;
      margin-bottom: 0;
    }

    button,
    input,
    textarea {
      font: inherit;
    }

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

    input,
    textarea {
      width: 100%;
      border: 1px solid var(--color-border);
      background: rgba(255,255,255,.9);
      border-radius: 14px;
      padding: 13px 15px;
      color: var(--color-ink);
      outline: none;
      transition: var(--ease);
    }

    input:focus,
    textarea:focus,
    button:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(15,143,134,.22);
      outline-offset: 3px;
    }

    input:focus,
    textarea:focus {
      border-color: rgba(15,143,134,.65);
      box-shadow: 0 0 0 4px rgba(15,143,134,.08);
    }

    .container {
      width: min(var(--container), calc(100% - 44px));
      margin: 0 auto;
    }

    .section {
      padding: 88px 0;
      position: relative;
    }

    .section-header {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 34px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--color-primary-dark);
      font-weight: 700;
      font-size: 14px;
      background: var(--color-primary-soft);
      border: 1px solid rgba(15,143,134,.12);
      padding: 7px 12px;
      border-radius: 999px;
      margin-bottom: 14px;
    }

    .section-kicker::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--color-primary);
      box-shadow: 0 0 0 5px rgba(15,143,134,.12);
    }

    .section-title {
      color: var(--color-ink);
      font-size: clamp(26px, 3vw, 38px);
      line-height: 1.25;
      font-weight: 850;
      letter-spacing: -.02em;
      margin-bottom: 12px;
    }

    .section-desc {
      max-width: 660px;
      color: var(--color-muted);
      font-size: 17px;
      margin: 0;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: 999px;
      font-weight: 700;
      border: 1px solid transparent;
      transition: var(--ease);
      white-space: nowrap;
      line-height: 1.2;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary) 0%, #0c766f 100%);
      box-shadow: 0 14px 28px rgba(15,143,134,.22);
    }

    .btn-primary:hover {
      color: #fff;
      transform: translateY(-2px);
      background: linear-gradient(135deg, #0b827a 0%, #06665f 100%);
      box-shadow: 0 18px 34px rgba(15,143,134,.28);
    }

    .btn-secondary {
      color: var(--color-primary-dark);
      background: rgba(255,255,255,.78);
      border-color: rgba(15,143,134,.22);
    }

    .btn-secondary:hover {
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      transform: translateY(-2px);
      border-color: rgba(15,143,134,.38);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 700;
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      border: 1px solid rgba(15,143,134,.12);
      line-height: 1.1;
    }

    .badge-warm {
      color: #9a5c11;
      background: var(--color-secondary-soft);
      border-color: rgba(242,168,75,.25);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-height);
      background: rgba(255,255,255,.88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(220,232,229,.75);
      box-shadow: 0 8px 28px rgba(23,35,34,.04);
    }

    .nav-wrap {
      height: var(--header-height);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 850;
      color: var(--color-ink);
      font-size: 22px;
      flex: 0 0 auto;
    }

    .logo:hover {
      color: var(--color-primary-dark);
    }

    .logo-mark {
      width: 39px;
      height: 39px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #fff;
      background:
        radial-gradient(circle at 27% 28%, rgba(255,255,255,.95) 0 3px, transparent 4px),
        radial-gradient(circle at 70% 32%, rgba(255,255,255,.82) 0 3px, transparent 4px),
        radial-gradient(circle at 53% 72%, rgba(255,255,255,.78) 0 3px, transparent 4px),
        linear-gradient(135deg, var(--color-primary), #074f4a);
      box-shadow: 0 10px 20px rgba(15,143,134,.20);
      position: relative;
      flex: 0 0 auto;
    }

    .logo-mark::after {
      content: "";
      position: absolute;
      inset: 11px;
      border: 1px solid rgba(255,255,255,.46);
      border-radius: 10px;
      transform: rotate(8deg);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 5px;
      list-style: none;
      margin-left: auto;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 9px 14px;
      border-radius: 999px;
      color: var(--color-text);
      font-weight: 650;
      font-size: 15px;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
    }

    .header-cta {
      flex: 0 0 auto;
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      border: 1px solid var(--color-border);
      background: var(--color-white);
      position: relative;
      transition: var(--ease);
    }

    .menu-toggle span {
      position: absolute;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--color-ink);
      border-radius: 99px;
      transition: var(--ease);
    }

    .menu-toggle span:nth-child(1) {
      top: 14px;
    }

    .menu-toggle span:nth-child(2) {
      top: 21px;
    }

    .menu-toggle span:nth-child(3) {
      top: 28px;
    }

    .menu-toggle.is-open span:nth-child(1) {
      top: 21px;
      transform: rotate(45deg);
    }

    .menu-toggle.is-open span:nth-child(2) {
      opacity: 0;
    }

    .menu-toggle.is-open span:nth-child(3) {
      top: 21px;
      transform: rotate(-45deg);
    }

    .article-hero {
      position: relative;
      padding: 54px 0 68px;
      background:
        linear-gradient(120deg, rgba(230,245,243,.96), rgba(255,250,242,.88)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      overflow: hidden;
      border-bottom: 1px solid rgba(220,232,229,.75);
    }

    .article-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(15,143,134,.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,143,134,.08) 1px, transparent 1px);
      background-size: 44px 44px;
      mask-image: linear-gradient(90deg, rgba(0,0,0,.42), rgba(0,0,0,.08));
      pointer-events: none;
    }

    .article-hero::after {
      content: "";
      position: absolute;
      width: 360px;
      height: 360px;
      right: -130px;
      top: -160px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(242,168,75,.25), rgba(242,168,75,0) 68%);
      pointer-events: none;
    }

    .breadcrumb-wrap {
      position: relative;
      z-index: 1;
      display: flex;
      align-items: center;
      gap: 9px;
      flex-wrap: wrap;
      color: var(--color-muted);
      font-size: 14px;
      margin-bottom: 28px;
    }

    .breadcrumb-wrap a {
      color: var(--color-primary-dark);
      font-weight: 650;
    }

    .breadcrumb-wrap a:hover {
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .breadcrumb-sep {
      color: rgba(108,124,121,.7);
    }

    .article-hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 340px;
      gap: 36px;
      align-items: end;
    }

    .article-labels {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 18px;
    }

    .article-title {
      max-width: 830px;
      color: var(--color-ink);
      font-size: clamp(32px, 4.6vw, 54px);
      line-height: 1.16;
      font-weight: 900;
      letter-spacing: -.035em;
      margin: 0 0 20px;
    }

    .article-summary {
      max-width: 780px;
      color: var(--color-text);
      font-size: 18px;
      line-height: 1.78;
      margin: 0;
    }

    .article-meta {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px 18px;
      margin-top: 24px;
      color: var(--color-muted);
      font-size: 14px;
    }

    .article-meta span {
      display: inline-flex;
      align-items: center;
      gap: 7px;
    }

    .article-meta span::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: rgba(15,143,134,.5);
    }

    .hero-note-card {
      border: 1px solid rgba(220,232,229,.88);
      background: rgba(255,255,255,.78);
      backdrop-filter: blur(12px);
      box-shadow: var(--shadow-soft);
      border-radius: var(--radius-xl);
      padding: 18px;
    }

    .hero-note-card img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border-radius: 22px;
      margin-bottom: 16px;
    }

    .hero-note-card h2 {
      color: var(--color-ink);
      font-size: 19px;
      line-height: 1.35;
      font-weight: 820;
      margin: 0 0 8px;
    }

    .hero-note-card p {
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.7;
      margin: 0;
    }

    .article-shell {
      padding: 78px 0 42px;
    }

    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 820px) 300px;
      align-items: start;
      justify-content: center;
      gap: 42px;
    }

    .article-card {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-card);
      padding: clamp(24px, 4vw, 46px);
      min-width: 0;
    }

    .article-content {
      color: var(--color-text);
      font-size: 17px;
      line-height: 1.86;
      overflow-wrap: break-word;
      word-break: break-word;
    }

    .article-content > *:first-child {
      margin-top: 0;
    }

    .article-content p {
      margin: 0 0 1.25em;
    }

    .article-content a {
      color: var(--color-primary-dark);
      font-weight: 700;
      border-bottom: 1px solid rgba(15,143,134,.28);
    }

    .article-content a:hover {
      color: var(--color-primary);
      border-bottom-color: rgba(15,143,134,.7);
    }

    .article-content h2 {
      color: var(--color-ink);
      font-size: clamp(24px, 2.6vw, 32px);
      line-height: 1.32;
      font-weight: 850;
      margin: 2.1em 0 .78em;
      padding-left: 16px;
      position: relative;
    }

    .article-content h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: .18em;
      width: 5px;
      height: 1.1em;
      border-radius: 99px;
      background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
    }

    .article-content h3 {
      color: var(--color-ink);
      font-size: clamp(20px, 2vw, 24px);
      line-height: 1.4;
      font-weight: 800;
      margin: 1.7em 0 .68em;
    }

    .article-content h4,
    .article-content h5,
    .article-content h6 {
      color: var(--color-ink);
      font-weight: 800;
      margin: 1.5em 0 .6em;
    }

    .article-content ul,
    .article-content ol {
      margin: 0 0 1.35em;
      padding-left: 1.35em;
    }

    .article-content li {
      margin: .42em 0;
      padding-left: .15em;
    }

    .article-content blockquote {
      margin: 1.6em 0;
      padding: 20px 22px;
      border-left: 5px solid var(--color-primary);
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      background: linear-gradient(90deg, rgba(230,245,243,.95), rgba(255,255,255,.72));
      color: var(--color-text);
    }

    .article-content blockquote p:last-child {
      margin-bottom: 0;
    }

    .article-content img {
      width: auto;
      max-width: 100%;
      height: auto;
      border-radius: var(--radius-lg);
      margin: 1.8em auto;
      box-shadow: 0 16px 38px rgba(20,68,63,.10);
    }

    .article-content figure {
      margin: 1.9em 0;
    }

    .article-content figure img {
      margin: 0 auto;
    }

    .article-content figcaption,
    .article-content caption {
      color: var(--color-muted);
      font-size: 14px;
      text-align: center;
      margin-top: 10px;
    }

    .article-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 1.7em 0;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: block;
      max-width: 100%;
      overflow-x: auto;
      white-space: nowrap;
    }

    .article-content th,
    .article-content td {
      border-bottom: 1px solid var(--color-border);
      padding: 13px 15px;
      text-align: left;
      min-width: 120px;
    }

    .article-content th {
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      font-weight: 800;
    }

    .article-content tr:last-child td {
      border-bottom: 0;
    }

    .article-content code {
      color: #0a625c;
      background: rgba(230,245,243,.95);
      border: 1px solid rgba(15,143,134,.14);
      border-radius: 8px;
      padding: 2px 6px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: .92em;
    }

    .article-content pre {
      margin: 1.7em 0;
      padding: 18px 20px;
      border-radius: var(--radius-md);
      background: #102523;
      color: #e9fffc;
      overflow-x: auto;
      box-shadow: 0 18px 38px rgba(16,37,35,.16);
    }

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

    .not-found-card {
      text-align: center;
      border: 1px dashed rgba(15,143,134,.38);
      background: linear-gradient(180deg, rgba(230,245,243,.65), rgba(255,250,242,.55));
      border-radius: var(--radius-lg);
      padding: 46px 24px;
    }

    .not-found-icon {
      width: 62px;
      height: 62px;
      border-radius: 22px;
      margin: 0 auto 18px;
      background:
        radial-gradient(circle at 32% 32%, rgba(255,255,255,.9) 0 4px, transparent 5px),
        linear-gradient(135deg, var(--color-primary), #075d57);
      box-shadow: 0 18px 32px rgba(15,143,134,.18);
    }

    .not-found-card h2 {
      color: var(--color-ink);
      font-size: 28px;
      font-weight: 850;
      margin: 0 0 10px;
    }

    .not-found-card p {
      color: var(--color-muted);
      margin: 0 0 22px;
    }

    .article-side {
      position: sticky;
      top: calc(var(--header-height) + 24px);
      display: grid;
      gap: 18px;
    }

    .side-card {
      background: rgba(255,255,255,.86);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      padding: 22px;
    }

    .side-card h2,
    .side-card h3 {
      color: var(--color-ink);
      font-size: 18px;
      line-height: 1.4;
      font-weight: 820;
      margin: 0 0 12px;
    }

    .side-card p {
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.72;
      margin: 0 0 14px;
    }

    .side-list {
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .side-list a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 13px;
      border-radius: 14px;
      background: var(--color-light);
      border: 1px solid transparent;
      color: var(--color-text);
      font-size: 14px;
      font-weight: 700;
    }

    .side-list a::after {
      content: "→";
      color: var(--color-primary);
      transition: var(--ease);
    }

    .side-list a:hover {
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      border-color: rgba(15,143,134,.18);
      transform: translateY(-2px);
    }

    .side-list a:hover::after {
      transform: translateX(3px);
    }

    .cover-mini {
      overflow: hidden;
      padding: 0;
    }

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

    .cover-mini-body {
      padding: 18px 20px 20px;
    }

    .info-strip {
      padding: 34px 0 78px;
    }

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

    .info-card {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 22px;
      box-shadow: 0 10px 26px rgba(20,68,63,.06);
      transition: var(--ease);
    }

    .info-card:hover {
      transform: translateY(-3px);
      border-color: rgba(15,143,134,.25);
      box-shadow: var(--shadow-card);
    }

    .info-card .icon {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      font-weight: 900;
    }

    .info-card h3 {
      color: var(--color-ink);
      font-size: 18px;
      font-weight: 820;
      margin: 0 0 6px;
    }

    .info-card p {
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.68;
      margin: 0;
    }

    .related-section {
      padding: 38px 0 92px;
      background:
        radial-gradient(circle at 8% 10%, rgba(15,143,134,.08), transparent 30%),
        radial-gradient(circle at 88% 75%, rgba(242,168,75,.12), transparent 28%);
    }

    .related-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 24px;
      align-items: stretch;
    }

    .related-feature {
      position: relative;
      overflow: hidden;
      min-height: 310px;
      border-radius: var(--radius-xl);
      background:
        linear-gradient(90deg, rgba(8,117,110,.92), rgba(8,117,110,.58)),
        url("/assets/images/coverpic/cover-2.webp") center/cover no-repeat;
      color: #fff;
      box-shadow: var(--shadow-soft);
      padding: 34px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
    }

    .related-feature::before {
      content: "";
      position: absolute;
      inset: 18px;
      border: 1px solid rgba(255,255,255,.18);
      border-radius: 22px;
      pointer-events: none;
    }

    .related-feature .badge {
      align-self: flex-start;
      background: rgba(255,255,255,.16);
      color: #fff;
      border-color: rgba(255,255,255,.22);
      margin-bottom: 18px;
    }

    .related-feature h2 {
      position: relative;
      z-index: 1;
      font-size: clamp(26px, 3vw, 36px);
      line-height: 1.26;
      font-weight: 880;
      margin: 0 0 12px;
    }

    .related-feature p {
      position: relative;
      z-index: 1;
      max-width: 560px;
      color: rgba(255,255,255,.86);
      margin: 0 0 22px;
      font-size: 16px;
    }

    .related-feature .btn {
      position: relative;
      z-index: 1;
      align-self: flex-start;
      background: #fff;
      color: var(--color-primary-dark);
    }

    .related-feature .btn:hover {
      background: var(--color-secondary-soft);
      color: #87500e;
      transform: translateY(-2px);
    }

    .related-list {
      display: grid;
      gap: 16px;
    }

    .related-card {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-card);
      transition: var(--ease);
    }

    .related-card:hover {
      transform: translateY(-3px);
      border-color: rgba(15,143,134,.25);
      box-shadow: var(--shadow-soft);
    }

    .related-card .badge {
      margin-bottom: 12px;
    }

    .related-card h3 {
      color: var(--color-ink);
      font-size: 20px;
      line-height: 1.38;
      font-weight: 820;
      margin: 0 0 8px;
    }

    .related-card p {
      color: var(--color-muted);
      margin: 0 0 16px;
      font-size: 15px;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--color-primary-dark);
      font-weight: 800;
    }

    .text-link:hover {
      color: var(--color-primary);
      gap: 10px;
    }

    .faq-section {
      padding: 84px 0;
      background: var(--color-light);
      border-top: 1px solid rgba(220,232,229,.75);
      border-bottom: 1px solid rgba(220,232,229,.75);
    }

    .faq-grid {
      display: grid;
      grid-template-columns: .75fr 1.25fr;
      gap: 34px;
      align-items: start;
    }

    .faq-intro {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-card);
      padding: 28px;
    }

    .faq-intro h2 {
      color: var(--color-ink);
      font-size: 30px;
      line-height: 1.28;
      font-weight: 850;
      margin: 0 0 12px;
    }

    .faq-intro p {
      color: var(--color-muted);
      margin: 0 0 20px;
    }

    .faq-list {
      display: grid;
      gap: 14px;
    }

    .faq-item {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      box-shadow: 0 10px 28px rgba(20,68,63,.06);
      overflow: hidden;
      transition: var(--ease);
    }

    .faq-item:hover {
      border-color: rgba(15,143,134,.22);
      box-shadow: var(--shadow-card);
    }

    .faq-question {
      width: 100%;
      min-height: 62px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 18px 22px;
      text-align: left;
      color: var(--color-ink);
      font-weight: 820;
    }

    .faq-question .plus {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      transition: var(--ease);
      font-weight: 900;
    }

    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      color: var(--color-muted);
      line-height: 1.75;
    }

    .faq-item.is-open .faq-answer {
      display: block;
    }

    .faq-item.is-open .plus {
      transform: rotate(45deg);
      background: var(--color-primary);
      color: #fff;
    }

    .cta-section {
      padding: 88px 0;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(242,168,75,.24);
      background:
        linear-gradient(105deg, rgba(255,250,242,.96), rgba(230,245,243,.92)),
        url("/assets/images/backpic/back-1.jpg") center/cover no-repeat;
      box-shadow: var(--shadow-soft);
      padding: clamp(28px, 5vw, 48px);
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 28px;
      align-items: center;
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      right: -90px;
      bottom: -100px;
      background: radial-gradient(circle, rgba(15,143,134,.16), transparent 68%);
      pointer-events: none;
    }

    .cta-content {
      position: relative;
      z-index: 1;
    }

    .cta-content h2 {
      color: var(--color-ink);
      font-size: clamp(27px, 3.2vw, 40px);
      line-height: 1.25;
      font-weight: 880;
      margin: 0 0 12px;
    }

    .cta-content p {
      max-width: 720px;
      color: var(--color-text);
      font-size: 17px;
      margin: 0;
    }

    .cta-actions {
      position: relative;
      z-index: 1;
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .site-footer {
      background: #102523;
      color: rgba(255,255,255,.78);
      padding: 64px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .8fr;
      gap: 38px;
      padding-bottom: 36px;
      border-bottom: 1px solid rgba(255,255,255,.10);
    }

    .footer-logo {
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-logo:hover {
      color: #fff;
      opacity: .9;
    }

    .footer-about p {
      max-width: 460px;
      color: rgba(255,255,255,.68);
      margin: 0;
    }

    .footer-title {
      color: #fff;
      font-size: 16px;
      font-weight: 820;
      margin-bottom: 14px;
    }

    .footer-links {
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: rgba(255,255,255,.68);
    }

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

    .footer-bottom {
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      color: rgba(255,255,255,.58);
      font-size: 14px;
    }

    .back-top {
      color: rgba(255,255,255,.74);
      font-weight: 700;
    }

    .back-top:hover {
      color: #fff;
    }

    @media (max-width: 1024px) {
      :root {
        --header-height: 66px;
      }

      .header-cta {
        display: none;
      }

      .article-hero-grid,
      .article-layout,
      .faq-grid,
      .related-grid,
      .cta-panel {
        grid-template-columns: 1fr;
      }

      .article-side {
        position: static;
        grid-template-columns: repeat(2, 1fr);
      }

      .info-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .related-feature {
        min-height: 270px;
      }

      .cta-actions {
        justify-content: flex-start;
      }
    }

    @media (max-width: 768px) {
      .container {
        width: min(100% - 36px, var(--container));
      }

      .menu-toggle {
        display: inline-block;
      }

      .nav-menu {
        position: fixed;
        left: 18px;
        right: 18px;
        top: calc(var(--header-height) + 10px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        padding: 14px;
        border: 1px solid var(--color-border);
        border-radius: 22px;
        background: rgba(255,255,255,.96);
        box-shadow: var(--shadow-soft);
        backdrop-filter: blur(16px);
      }

      .nav-menu.is-open {
        display: flex;
      }

      .nav-link {
        justify-content: center;
        width: 100%;
      }

      .article-hero {
        padding: 34px 0 48px;
      }

      .article-title {
        letter-spacing: -.02em;
      }

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

      .hero-note-card {
        max-width: 420px;
      }

      .article-shell {
        padding: 48px 0 28px;
      }

      .article-card {
        border-radius: 22px;
      }

      .article-content {
        font-size: 16px;
        line-height: 1.82;
      }

      .article-side {
        grid-template-columns: 1fr;
      }

      .info-strip {
        padding: 24px 0 56px;
      }

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

      .section,
      .faq-section,
      .cta-section {
        padding: 62px 0;
      }

      .section-header {
        display: block;
      }

      .related-section {
        padding: 30px 0 66px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

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

    @media (max-width: 520px) {
      .container {
        width: min(100% - 32px, var(--container));
      }

      .logo {
        font-size: 20px;
      }

      .logo-mark {
        width: 36px;
        height: 36px;
        border-radius: 13px;
      }

      .article-hero-grid {
        gap: 24px;
      }

      .article-meta {
        display: grid;
        gap: 8px;
      }

      .article-card {
        padding: 22px 18px;
      }

      .article-content table {
        font-size: 14px;
      }

      .related-feature,
      .related-card,
      .faq-intro,
      .side-card,
      .cta-panel {
        border-radius: 22px;
      }

      .related-feature {
        padding: 26px 22px;
      }

      .faq-question {
        padding: 17px 18px;
      }

      .faq-answer {
        padding: 0 18px 18px;
      }

      .btn {
        width: 100%;
        min-height: 48px;
      }

      .cta-actions {
        width: 100%;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}