/* roulang page: index */
:root {
      --bg: #f7f4ef;
      --surface: #ffffff;
      --surface-soft: #fbfaf7;
      --ink: #23211d;
      --muted: #6f675e;
      --weak: #91897f;
      --line: #e6ded3;
      --brand: #7b4f35;
      --brand-strong: #5f3825;
      --accent: #2f6f63;
      --accent-soft: #e5f0ec;
      --gold: #b88a42;
      --gold-soft: #f5ead8;
      --danger: #a64235;
      --radius-sm: 8px;
      --radius: 14px;
      --radius-lg: 22px;
      --shadow-sm: 0 8px 22px rgba(56, 43, 30, .08);
      --shadow: 0 18px 50px rgba(56, 43, 30, .13);
      --container: 1180px;
      --header-h: 76px;
      --ease: .22s ease;
    }

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

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

    body {
      min-height: 100vh;
      font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      color: var(--ink);
      background: var(--bg);
      line-height: 1.72;
      font-size: 16px;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--ease), background-color var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease);
    }

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

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

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

    :focus-visible {
      outline: 3px solid rgba(47, 111, 99, .28);
      outline-offset: 3px;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-h);
      background: rgba(247, 244, 239, .92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(230, 222, 211, .85);
    }

    .nav-wrap {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 800;
      color: var(--ink);
      letter-spacing: 0;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      color: #fff;
      background: linear-gradient(135deg, var(--brand), var(--accent));
      box-shadow: var(--shadow-sm);
      flex: 0 0 auto;
      font-size: 18px;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.22;
      min-width: 0;
    }

    .brand-title {
      font-size: 17px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 420px;
    }

    .brand-sub {
      color: var(--muted);
      font-size: 12px;
      font-weight: 600;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      color: var(--muted);
      font-weight: 700;
      font-size: 14px;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--brand-strong);
      background: var(--gold-soft);
    }

    .nav-links a:active {
      transform: translateY(1px);
    }

    .menu-btn {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      border: 1px solid var(--line);
      background: var(--surface);
      color: var(--ink);
      align-items: center;
      justify-content: center;
    }

    .menu-btn span,
    .menu-btn::before,
    .menu-btn::after {
      content: "";
      width: 20px;
      height: 2px;
      border-radius: 2px;
      background: currentColor;
      transition: transform var(--ease), opacity var(--ease);
    }

    .menu-btn {
      flex-direction: column;
      gap: 5px;
    }

    .menu-btn.is-open span {
      opacity: 0;
    }

    .menu-btn.is-open::before {
      transform: translateY(7px) rotate(45deg);
    }

    .menu-btn.is-open::after {
      transform: translateY(-7px) rotate(-45deg);
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 88px 0;
    }

    .section.alt {
      background: var(--surface-soft);
      border-block: 1px solid var(--line);
    }

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

    .section-kicker,
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 7px 12px;
      border: 1px solid rgba(184, 138, 66, .32);
      border-radius: 999px;
      background: var(--gold-soft);
      color: var(--brand-strong);
      font-size: 13px;
      font-weight: 800;
    }

    h1,
    h2,
    h3 {
      line-height: 1.18;
      letter-spacing: 0;
      color: var(--ink);
    }

    h1 {
      margin-top: 18px;
      font-size: clamp(38px, 6vw, 72px);
      max-width: 900px;
    }

    h2 {
      font-size: clamp(28px, 4vw, 44px);
    }

    h3 {
      font-size: 21px;
    }

    p {
      color: var(--muted);
    }

    .lead {
      margin-top: 22px;
      max-width: 740px;
      font-size: 18px;
      color: #554c43;
    }

    .hero {
      position: relative;
      min-height: calc(100vh - var(--header-h));
      display: flex;
      align-items: center;
      padding: 70px 0 56px;
      background-image:
        linear-gradient(90deg, rgba(247, 244, 239, .96) 0%, rgba(247, 244, 239, .82) 48%, rgba(247, 244, 239, .36) 100%),
        url("/assets/images/backpic/back-1.png");
      background-size: cover;
      background-position: center;
    }

    .hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 120px;
      background: linear-gradient(180deg, rgba(247, 244, 239, 0), var(--bg));
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.12fr) minmax(320px, .68fr);
      align-items: center;
      gap: 52px;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 22px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 800;
      line-height: 1;
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: var(--brand);
      box-shadow: 0 12px 28px rgba(123, 79, 53, .2);
    }

    .btn-primary:hover {
      background: var(--brand-strong);
      transform: translateY(-2px);
      box-shadow: 0 18px 36px rgba(123, 79, 53, .24);
    }

    .btn-secondary {
      color: var(--brand-strong);
      background: rgba(255, 255, 255, .72);
      border-color: rgba(123, 79, 53, .26);
    }

    .btn-secondary:hover {
      border-color: var(--brand);
      background: #fff;
      transform: translateY(-2px);
    }

    .hero-panel {
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .86);
      border: 1px solid rgba(255, 255, 255, .72);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .hero-panel img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .panel-body {
      padding: 24px;
    }

    .panel-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding-top: 16px;
      margin-top: 18px;
      border-top: 1px solid var(--line);
    }

    .status-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 6px rgba(47, 111, 99, .14);
      flex: 0 0 auto;
    }

    .hero-strip {
      position: relative;
      z-index: 2;
      margin-top: -26px;
    }

    .strip-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .stat-card {
      padding: 22px;
      border-radius: var(--radius);
      background: var(--surface);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
    }

    .stat-card strong {
      display: block;
      color: var(--brand-strong);
      font-size: 28px;
      line-height: 1;
      margin-bottom: 10px;
    }

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

    .feature-layout {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 28px;
      align-items: stretch;
    }

    .feature-media {
      position: relative;
      min-height: 430px;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .feature-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .feature-media .caption {
      position: absolute;
      left: 22px;
      right: 22px;
      bottom: 22px;
      padding: 18px;
      border-radius: var(--radius);
      background: rgba(255, 255, 255, .9);
      border: 1px solid rgba(255, 255, 255, .72);
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .card {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }

    .card:hover {
      transform: translateY(-4px);
      border-color: rgba(123, 79, 53, .28);
      box-shadow: var(--shadow);
    }

    .info-card {
      padding: 24px;
    }

    .info-card .num {
      display: inline-grid;
      place-items: center;
      width: 38px;
      height: 38px;
      margin-bottom: 18px;
      border-radius: 11px;
      background: var(--accent-soft);
      color: var(--accent);
      font-weight: 900;
    }

    .info-card p {
      margin-top: 10px;
      font-size: 15px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      width: fit-content;
      min-height: 28px;
      padding: 0 10px;
      border-radius: 999px;
      background: var(--accent-soft);
      color: var(--accent);
      font-size: 12px;
      font-weight: 800;
    }

    .content-board {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 22px;
      align-items: stretch;
    }

    .primary-topic {
      min-height: 420px;
      overflow: hidden;
    }

    .primary-topic img {
      width: 100%;
      aspect-ratio: 16 / 9;
      object-fit: cover;
    }

    .primary-topic .topic-body {
      padding: 28px;
    }

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

    .topic-item {
      display: grid;
      grid-template-columns: 112px 1fr;
      gap: 16px;
      padding: 14px;
      align-items: center;
    }

    .topic-item img {
      width: 112px;
      aspect-ratio: 1 / 1;
      border-radius: 12px;
      object-fit: cover;
    }

    .topic-item p {
      margin-top: 6px;
      font-size: 14px;
    }

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

    .post-item {
      display: grid;
      grid-template-columns: 150px 1fr auto;
      gap: 20px;
      align-items: center;
      padding: 20px;
    }

    .post-meta {
      display: flex;
      flex-direction: column;
      gap: 8px;
      color: var(--weak);
      font-size: 13px;
    }

    .post-title {
      font-size: 20px;
      font-weight: 900;
      color: var(--ink);
      line-height: 1.32;
    }

    .post-title:hover {
      color: var(--brand);
    }

    .post-excerpt {
      margin-top: 8px;
      color: var(--muted);
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .read-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 96px;
      min-height: 40px;
      border-radius: 999px;
      color: var(--brand-strong);
      border: 1px solid rgba(123, 79, 53, .25);
      font-weight: 800;
      font-size: 14px;
    }

    .read-link:hover {
      background: var(--gold-soft);
      border-color: var(--brand);
    }

    .empty-state {
      padding: 34px;
      text-align: center;
      color: var(--muted);
      background: var(--surface);
      border: 1px dashed rgba(123, 79, 53, .35);
      border-radius: var(--radius);
    }

    .proof-grid {
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 26px;
      align-items: start;
    }

    .quote-box {
      padding: 30px;
      background: var(--brand-strong);
      color: #fff;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
    }

    .quote-box p {
      color: rgba(255, 255, 255, .82);
      margin-top: 12px;
    }

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

    .proof-item {
      padding: 22px;
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }

    .check {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      background: var(--accent-soft);
      color: var(--accent);
      font-weight: 900;
    }

    .category-entry {
      display: grid;
      grid-template-columns: 1fr .92fr;
      gap: 30px;
      align-items: center;
      padding: 30px;
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
    }

    .category-entry img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border-radius: 18px;
    }

    .category-entry p {
      margin-top: 14px;
    }

    .category-points {
      display: grid;
      gap: 10px;
      margin: 22px 0;
      list-style: none;
    }

    .category-points li {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--muted);
    }

    .category-points li::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--gold);
      flex: 0 0 auto;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .72fr 1.28fr;
      gap: 34px;
      align-items: start;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      min-height: 62px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 20px;
      color: var(--ink);
      font-weight: 900;
      text-align: left;
    }

    .faq-question:hover {
      background: var(--surface-soft);
    }

    .faq-question::after {
      content: "+";
      display: grid;
      place-items: center;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--gold-soft);
      color: var(--brand-strong);
      flex: 0 0 auto;
      transition: transform var(--ease);
    }

    .faq-item.is-open .faq-question::after {
      transform: rotate(45deg);
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px;
    }

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

    .contact-cta {
      background:
        linear-gradient(135deg, rgba(95, 56, 37, .96), rgba(47, 111, 99, .92)),
        url("/assets/images/backpic/back-2.webp");
      background-size: cover;
      background-position: center;
      color: #fff;
      border-radius: 28px;
      padding: 42px;
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 34px;
      align-items: start;
      box-shadow: var(--shadow);
    }

    .contact-cta h2,
    .contact-cta p {
      color: #fff;
    }

    .contact-cta p {
      opacity: .82;
      margin-top: 14px;
    }

    .contact-form {
      display: grid;
      gap: 14px;
      padding: 22px;
      border-radius: var(--radius);
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .22);
    }

    .field-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .form-field {
      display: grid;
      gap: 7px;
    }

    .form-field label {
      color: rgba(255, 255, 255, .86);
      font-size: 13px;
      font-weight: 800;
    }

    .form-field input,
    .form-field textarea,
    .form-field select {
      width: 100%;
      border: 1px solid rgba(255, 255, 255, .24);
      background: rgba(255, 255, 255, .92);
      color: var(--ink);
      border-radius: 12px;
      padding: 12px 14px;
      min-height: 46px;
      transition: border-color var(--ease), box-shadow var(--ease), background-color var(--ease);
    }

    .form-field textarea {
      min-height: 104px;
      resize: vertical;
      grid-column: 1 / -1;
    }

    .form-field input:focus,
    .form-field textarea:focus,
    .form-field select:focus {
      outline: none;
      border-color: var(--gold);
      box-shadow: 0 0 0 4px rgba(184, 138, 66, .22);
      background: #fff;
    }

    .form-note {
      color: rgba(255, 255, 255, .72);
      font-size: 13px;
    }

    .site-footer {
      background: #211c18;
      color: rgba(255, 255, 255, .86);
      padding: 56px 0 24px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .8fr .95fr;
      gap: 42px;
      padding-bottom: 36px;
      border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
      font-weight: 900;
      color: #fff;
    }

    .footer-brand .brand-mark {
      box-shadow: none;
    }

    .footer-title {
      color: #fff;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .footer-links {
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, .72);
    }

    .footer-links a:hover {
      color: #fff;
      transform: translateX(3px);
    }

    .footer-bottom {
      padding-top: 22px;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      color: rgba(255, 255, 255, .58);
      font-size: 14px;
    }

    @media (max-width: 1024px) {
      .brand-title {
        max-width: 280px;
      }

      .hero-inner,
      .feature-layout,
      .content-board,
      .proof-grid,
      .category-entry,
      .faq-wrap,
      .contact-cta {
        grid-template-columns: 1fr;
      }

      .hero {
        min-height: auto;
      }

      .hero-panel {
        max-width: 620px;
      }

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

      .post-item {
        grid-template-columns: 120px 1fr;
      }

      .post-item .read-link {
        grid-column: 2;
        justify-self: start;
      }
    }

    @media (max-width: 768px) {
      :root {
        --header-h: 68px;
      }

      .container {
        width: min(100% - 28px, var(--container));
      }

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

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

      .brand-title {
        max-width: 210px;
        font-size: 15px;
      }

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

      .nav-links {
        display: none;
        width: 100%;
        padding: 0 0 14px;
        flex-direction: column;
        align-items: stretch;
      }

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

      .nav-links a {
        border-radius: 12px;
        justify-content: flex-start;
        padding: 0 14px;
        background: rgba(255, 255, 255, .55);
      }

      .section {
        padding: 62px 0;
      }

      .section-head {
        display: grid;
        gap: 14px;
      }

      .hero {
        padding: 44px 0 42px;
        background-image:
          linear-gradient(180deg, rgba(247, 244, 239, .96), rgba(247, 244, 239, .78)),
          url("/assets/images/backpic/back-1.png");
      }

      h1 {
        font-size: clamp(34px, 11vw, 48px);
      }

      h2 {
        font-size: clamp(26px, 8vw, 36px);
      }

      .lead {
        font-size: 16px;
      }

      .hero-actions,
      .field-grid,
      .footer-bottom {
        flex-direction: column;
        display: grid;
        grid-template-columns: 1fr;
      }

      .btn {
        width: 100%;
      }

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

      .feature-media {
        min-height: 320px;
      }

      .topic-item {
        grid-template-columns: 92px 1fr;
      }

      .topic-item img {
        width: 92px;
      }

      .post-item {
        grid-template-columns: 1fr;
      }

      .post-item .read-link {
        grid-column: auto;
      }

      .contact-cta {
        padding: 28px 18px;
        border-radius: 20px;
      }
    }

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

      .brand-mark {
        width: 38px;
        height: 38px;
      }

      .brand-sub {
        display: none;
      }

      .hero-panel .panel-body,
      .info-card,
      .primary-topic .topic-body,
      .quote-box,
      .category-entry {
        padding: 20px;
      }

      .panel-row {
        align-items: flex-start;
        flex-direction: column;
      }

      .post-title {
        font-size: 18px;
      }

      .footer-bottom {
        font-size: 13px;
      }
    }

/* roulang page: article */
:root {
      --bg: #f7f4ef;
      --surface: #fff;
      --surface-soft: #fbfaf7;
      --ink: #23211d;
      --muted: #6f675e;
      --weak: #91897f;
      --line: #e6ded3;
      --brand: #7b4f35;
      --brand-strong: #5f3825;
      --accent: #2f6f63;
      --accent-soft: #e5f0ec;
      --gold: #b88a42;
      --gold-soft: #f5ead8;
      --danger: #a64235;
      --radius-sm: 8px;
      --radius: 14px;
      --radius-lg: 22px;
      --shadow-sm: 0 8px 22px rgba(56,43,30,.08);
      --shadow: 0 18px 50px rgba(56,43,30,.13);
      --container: 1180px;
      --header-h: 76px;
      --ease: .22s ease;
    }
    *,*::before,*::after { box-sizing:border-box; }
    html { scroll-behavior:smooth; text-size-adjust:100%; }
    body {
      min-height:100vh;
      margin:0;
      color:var(--ink);
      background:var(--bg);
      font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.72;
    }
    a { color:inherit; text-decoration:none; transition:color var(--ease),background-color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease); }
    img { display:block; max-width:100%; height:auto; }
    button,input,textarea,select { font:inherit; }
    button { border:0; cursor:pointer; background:none; }
    :focus-visible { outline:3px solid rgba(47,111,99,.35); outline-offset:3px; }
    .container { width:min(calc(100% - 40px),var(--container)); margin-inline:auto; }
    .site-header {
      position:sticky; top:0; z-index:50; height:var(--header-h);
      background:rgba(247,244,239,.94); backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(230,222,211,.9);
    }
    .nav-wrap { height:100%; display:flex; align-items:center; justify-content:space-between; gap:24px; }
    .brand { display:inline-flex; align-items:center; gap:12px; min-width:0; font-weight:800; }
    .brand-mark {
      width:42px; height:42px; display:grid; place-items:center; flex:0 0 auto;
      border-radius:12px; color:#fff; background:linear-gradient(135deg,var(--brand),var(--accent));
      box-shadow:var(--shadow-sm); font-size:18px;
    }
    .brand-text { display:flex; flex-direction:column; min-width:0; line-height:1.22; }
    .brand-title { max-width:420px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:17px; }
    .brand-sub { color:var(--muted); font-size:12px; font-weight:600; }
    .nav-links { display:flex; align-items:center; gap:8px; }
    .nav-links a {
      display:inline-flex; align-items:center; min-height:42px; padding:0 16px;
      border-radius:999px; color:var(--muted); font-size:14px; font-weight:700;
    }
    .nav-links a:hover,.nav-links a.active { color:var(--brand-strong); background:var(--gold-soft); }
    .nav-links a:active { transform:translateY(1px); }
    .menu-btn {
      display:none; width:44px; height:44px; align-items:center; justify-content:center; flex-direction:column;
      gap:5px; border:1px solid var(--line); border-radius:12px; background:var(--surface); color:var(--ink);
    }
    .menu-btn span,.menu-btn::before,.menu-btn::after { content:""; width:20px; height:2px; border-radius:2px; background:currentColor; transition:transform var(--ease),opacity var(--ease); }
    .menu-btn.is-open span { opacity:0; }
    .menu-btn.is-open::before { transform:translateY(7px) rotate(45deg); }
    .menu-btn.is-open::after { transform:translateY(-7px) rotate(-45deg); }
    main { overflow:hidden; }
    .article-banner {
      position:relative; padding:86px 0 76px; color:#fff;
      background-image:linear-gradient(90deg,rgba(35,33,29,.86),rgba(35,33,29,.55)),url("/assets/images/backpic/back-2.webp");
      background-position:center; background-size:cover;
    }
    .article-banner::after { content:""; position:absolute; left:0; right:0; bottom:0; height:1px; background:rgba(255,255,255,.22); }
    .breadcrumb { display:flex; flex-wrap:wrap; gap:9px; margin-bottom:25px; color:rgba(255,255,255,.72); font-size:14px; }
    .breadcrumb a:hover { color:#fff; }
    .breadcrumb span { color:rgba(255,255,255,.45); }
    .banner-inner { max-width:880px; }
    .eyebrow {
      display:inline-flex; width:fit-content; align-items:center; gap:8px; padding:7px 12px;
      border:1px solid rgba(245,234,216,.4); border-radius:999px; background:rgba(245,234,216,.13);
      color:#f5ead8; font-size:13px; font-weight:800;
    }
    .article-banner h1 { max-width:880px; margin:20px 0 18px; color:#fff; font-size:clamp(32px,5vw,58px); line-height:1.18; letter-spacing:0; }
    .banner-summary { max-width:760px; margin:0; color:rgba(255,255,255,.84); font-size:18px; }
    .article-meta { display:flex; flex-wrap:wrap; gap:18px; margin-top:28px; color:rgba(255,255,255,.68); font-size:14px; }
    .article-layout { display:grid; grid-template-columns:minmax(0,1fr) 310px; align-items:start; gap:48px; padding:72px 0 92px; }
    .reading-card { min-width:0; padding:clamp(26px,4vw,58px); border:1px solid var(--line); border-radius:var(--radius-lg); background:var(--surface); box-shadow:var(--shadow-sm); }
    .reading-intro { padding-bottom:25px; margin-bottom:30px; border-bottom:1px solid var(--line); color:var(--muted); font-size:15px; }
    .article-content { color:#3e3933; font-size:17px; line-height:1.95; overflow-wrap:anywhere; }
    .article-content h2 { margin:42px 0 16px; color:var(--ink); font-size:29px; line-height:1.35; }
    .article-content h3 { margin:32px 0 12px; color:var(--brand-strong); font-size:22px; line-height:1.45; }
    .article-content p { margin:0 0 20px; }
    .article-content ul,.article-content ol { padding-left:1.5em; margin:0 0 24px; }
    .article-content li { margin:7px 0; }
    .article-content blockquote { padding:18px 22px; margin:28px 0; border-left:4px solid var(--gold); background:var(--gold-soft); color:var(--brand-strong); }
    .article-content img { width:100%; margin:30px 0; border-radius:var(--radius); }
    .article-content hr { margin:34px 0; border:0; border-top:1px solid var(--line); }
    .article-content code { padding:2px 7px; border-radius:5px; background:#f0ebe4; color:var(--brand-strong); font-size:.9em; }
    .article-content pre { overflow:auto; padding:20px; margin:25px 0; border-radius:var(--radius); background:#27231f; color:#f9f5ef; }
    .side-column { display:grid; gap:18px; position:sticky; top:98px; }
    .side-card { padding:25px; border:1px solid var(--line); border-radius:var(--radius); background:var(--surface); box-shadow:var(--shadow-sm); }
    .side-card h2 { margin:0 0 15px; font-size:19px; }
    .side-card p { margin:0; color:var(--muted); font-size:14px; }
    .side-link { display:flex; align-items:center; justify-content:space-between; gap:12px; padding:12px 0; border-bottom:1px solid var(--line); color:var(--brand-strong); font-weight:700; font-size:14px; }
    .side-link:last-child { border-bottom:0; padding-bottom:0; }
    .side-link:hover { color:var(--accent); padding-left:4px; }
    .side-image { overflow:hidden; aspect-ratio:1.4; margin:-25px -25px 20px; border-radius:var(--radius) var(--radius) 0 0; }
    .side-image img { width:100%; height:100%; object-fit:cover; transition:transform .45s ease; }
    .side-card:hover .side-image img { transform:scale(1.04); }
    .action-row { display:flex; flex-wrap:wrap; gap:12px; margin-top:34px; padding-top:28px; border-top:1px solid var(--line); }
    .btn { display:inline-flex; align-items:center; justify-content:center; min-height:46px; padding:0 20px; border:1px solid transparent; border-radius:999px; font-weight:800; line-height:1; white-space:nowrap; }
    .btn-primary { color:#fff; background:var(--brand); box-shadow:0 10px 24px rgba(123,79,53,.18); }
    .btn-primary:hover { color:#fff; background:var(--brand-strong); transform:translateY(-2px); box-shadow:0 15px 30px rgba(123,79,53,.25); }
    .btn-secondary { color:var(--brand-strong); border-color:var(--brand); background:transparent; }
    .btn-secondary:hover { color:var(--brand-strong); background:var(--gold-soft); transform:translateY(-2px); }
    .missing { text-align:center; padding:46px 20px; }
    .missing h2 { margin:0 0 12px; font-size:28px; }
    .missing p { color:var(--muted); margin:0 0 24px; }
    .cta-band { padding:72px 0; background:var(--accent); color:#fff; }
    .cta-inner { display:flex; align-items:center; justify-content:space-between; gap:30px; }
    .cta-inner h2 { margin:0 0 8px; font-size:32px; line-height:1.3; }
    .cta-inner p { margin:0; color:rgba(255,255,255,.76); }
    .cta-band .btn-primary { color:var(--accent); background:#fff; box-shadow:none; }
    .cta-band .btn-primary:hover { color:var(--accent); background:var(--gold-soft); }
    .site-footer { padding:58px 0 25px; background:#29251f; color:#f9f5ef; }
    .footer-grid { display:grid; grid-template-columns:1.4fr .7fr 1fr; gap:55px; padding-bottom:44px; }
    .footer-brand { display:flex; align-items:center; gap:12px; font-size:19px; font-weight:800; }
    .footer-brand .brand-mark { width:38px; height:38px; font-size:16px; box-shadow:none; }
    .footer-grid p { max-width:430px; margin:18px 0 0; color:#bdb4a9; font-size:14px; }
    .footer-title { margin-bottom:15px; color:#fff; font-weight:800; }
    .footer-links { display:grid; gap:10px; color:#bdb4a9; font-size:14px; }
    .footer-links a:hover { color:#fff; padding-left:3px; }
    .footer-bottom { display:flex; justify-content:space-between; gap:20px; padding-top:22px; border-top:1px solid rgba(255,255,255,.14); color:#9e958a; font-size:13px; }
    @media (max-width:1024px) {
      .article-layout { grid-template-columns:minmax(0,1fr) 260px; gap:28px; }
      .footer-grid { gap:30px; }
    }
    @media (max-width:768px) {
      :root { --header-h:68px; }
      .container { width:min(100% - 30px,var(--container)); }
      .menu-btn { display:flex; }
      .nav-links {
        display:none; position:absolute; top:calc(100% + 1px); left:15px; right:15px; padding:10px;
        flex-direction:column; align-items:stretch; border:1px solid var(--line); border-radius:var(--radius);
        background:var(--surface); box-shadow:var(--shadow);
      }
      .nav-links.is-open { display:flex; }
      .nav-links a { justify-content:flex-start; min-height:46px; }
      .article-banner { padding:58px 0 52px; }
      .article-banner h1 { font-size:36px; }
      .article-layout { grid-template-columns:1fr; padding:45px 0 62px; }
      .side-column { position:static; grid-template-columns:repeat(2,minmax(0,1fr)); }
      .cta-inner { align-items:flex-start; flex-direction:column; }
      .footer-grid { grid-template-columns:1fr 1fr; }
      .footer-grid > div:first-child { grid-column:1 / -1; }
    }
    @media (max-width:520px) {
      .brand-title { max-width:210px; font-size:15px; }
      .brand-sub { font-size:11px; }
      .article-banner h1 { font-size:30px; }
      .banner-summary { font-size:16px; }
      .reading-card { padding:23px 19px; border-radius:var(--radius); }
      .article-content { font-size:16px; }
      .article-content h2 { font-size:25px; }
      .side-column,.footer-grid { grid-template-columns:1fr; }
      .footer-grid > div:first-child { grid-column:auto; }
      .footer-bottom { flex-direction:column; gap:5px; }
      .action-row .btn { width:100%; }
    }

/* roulang page: category1 */
:root {
      --bg: #f7f4ef;
      --surface: #ffffff;
      --surface-soft: #fbfaf7;
      --ink: #23211d;
      --muted: #6f675e;
      --weak: #91897f;
      --line: #e6ded3;
      --brand: #7b4f35;
      --brand-strong: #5f3825;
      --accent: #2f6f63;
      --accent-soft: #e5f0ec;
      --gold: #b88a42;
      --gold-soft: #f5ead8;
      --danger: #a64235;
      --radius-sm: 8px;
      --radius: 14px;
      --radius-lg: 22px;
      --shadow-sm: 0 8px 22px rgba(56, 43, 30, .08);
      --shadow: 0 18px 50px rgba(56, 43, 30, .13);
      --container: 1180px;
      --header-h: 76px;
      --ease: .22s ease;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; text-size-adjust: 100%; }
    body {
      margin: 0;
      min-height: 100vh;
      color: var(--ink);
      background: var(--bg);
      font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.72;
    }
    a { color: inherit; text-decoration: none; transition: color var(--ease), background-color var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease); }
    img { display: block; max-width: 100%; height: auto; }
    button, input, textarea, select { font: inherit; }
    button { border: 0; cursor: pointer; background: none; }
    :focus-visible { outline: 3px solid rgba(47, 111, 99, .35); outline-offset: 3px; }
    .container { width: min(100% - 40px, var(--container)); margin-inline: auto; }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-h);
      background: rgba(247, 244, 239, .94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(230, 222, 211, .85);
    }
    .nav-wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; font-weight: 800; }
    .brand-mark {
      width: 42px; height: 42px; display: grid; place-items: center; flex: 0 0 auto;
      border-radius: 12px; color: #fff; background: linear-gradient(135deg, var(--brand), var(--accent)); box-shadow: var(--shadow-sm); font-size: 18px;
    }
    .brand-text { display: flex; flex-direction: column; min-width: 0; line-height: 1.22; }
    .brand-title { max-width: 420px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 17px; }
    .brand-sub { color: var(--muted); font-size: 12px; font-weight: 600; }
    .nav-links { display: flex; align-items: center; gap: 8px; }
    .nav-links a {
      display: inline-flex; align-items: center; min-height: 42px; padding: 0 16px;
      border-radius: 999px; color: var(--muted); font-size: 14px; font-weight: 700;
    }
    .nav-links a:hover, .nav-links a.active { color: var(--brand-strong); background: var(--gold-soft); }
    .nav-links a:active { transform: translateY(1px); }
    .menu-btn {
      display: none; width: 44px; height: 44px; align-items: center; justify-content: center; flex-direction: column; gap: 5px;
      border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink);
    }
    .menu-btn span, .menu-btn::before, .menu-btn::after { content: ""; width: 20px; height: 2px; border-radius: 2px; background: currentColor; transition: transform var(--ease), opacity var(--ease); }
    .menu-btn.is-open span { opacity: 0; }
    .menu-btn.is-open::before { transform: translateY(7px) rotate(45deg); }
    .menu-btn.is-open::after { transform: translateY(-7px) rotate(-45deg); }

    main { overflow: hidden; }
    .section { padding: 82px 0; }
    .section.alt { background: var(--surface-soft); border-block: 1px solid var(--line); }
    .eyebrow, .section-kicker {
      display: inline-flex; align-items: center; width: fit-content; padding: 7px 12px;
      border: 1px solid rgba(184, 138, 66, .32); border-radius: 999px; background: var(--gold-soft);
      color: var(--brand-strong); font-size: 13px; font-weight: 800;
    }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 32px; }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 760px; margin: 20px 0 18px; font-size: clamp(2.35rem, 5vw, 4.8rem); line-height: 1.14; letter-spacing: 0; }
    h2 { margin-bottom: 12px; font-size: clamp(1.8rem, 3vw, 2.65rem); line-height: 1.25; }
    h3 { margin-bottom: 10px; font-size: 1.18rem; line-height: 1.4; }
    .lead { max-width: 720px; margin-bottom: 0; color: #554c43; font-size: 18px; }
    .muted { color: var(--muted); }
    .hero {
      position: relative;
      padding: 84px 0 74px;
      background-image: linear-gradient(90deg, rgba(247,244,239,.97) 0%, rgba(247,244,239,.84) 52%, rgba(247,244,239,.45) 100%), url("/assets/images/backpic/back-2.webp");
      background-size: cover; background-position: center;
      border-bottom: 1px solid var(--line);
    }
    .hero-inner { display: grid; grid-template-columns: minmax(0, 1fr) 390px; gap: 64px; align-items: end; }
    .hero-copy { padding-bottom: 20px; }
    .hero-copy p { max-width: 680px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px;
      border: 1px solid transparent; border-radius: 999px; font-weight: 800; line-height: 1; white-space: nowrap;
    }
    .btn-primary { color: #fff; background: var(--brand); box-shadow: 0 12px 28px rgba(123,79,53,.2); }
    .btn-primary:hover { color: #fff; background: var(--brand-strong); transform: translateY(-2px); box-shadow: 0 18px 36px rgba(123,79,53,.24); }
    .btn-secondary { color: var(--brand-strong); background: rgba(255,255,255,.66); border-color: var(--brand); }
    .btn-secondary:hover { color: var(--brand-strong); background: var(--gold-soft); transform: translateY(-2px); }
    .hero-note {
      padding: 24px; border: 1px solid rgba(123,79,53,.16); border-radius: var(--radius-lg);
      background: rgba(255,255,255,.84); box-shadow: var(--shadow); backdrop-filter: blur(6px);
    }
    .hero-note strong { display: block; margin-bottom: 8px; color: var(--brand-strong); font-size: 1.35rem; }
    .hero-note p { margin-bottom: 0; color: var(--muted); font-size: 14px; }

    .signal-bar { padding: 18px 0; background: var(--brand-strong); color: #fff; }
    .signal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
    .signal-item { padding: 6px 28px; border-right: 1px solid rgba(255,255,255,.2); }
    .signal-item:first-child { padding-left: 0; }
    .signal-item:last-child { border-right: 0; }
    .signal-item b { display: block; color: #f7dfb0; font-size: 1.25rem; }
    .signal-item span { color: rgba(255,255,255,.72); font-size: 14px; }

    .intro-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 68px; align-items: start; }
    .intro-grid p { color: var(--muted); }
    .rule-list { display: grid; gap: 16px; margin: 0; padding: 0; list-style: none; }
    .rule-list li { display: flex; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line); }
    .rule-number { color: var(--gold); font-weight: 900; font-size: 14px; }
    .rule-list strong { display: block; margin-bottom: 3px; }
    .rule-list span { color: var(--muted); font-size: 14px; }

    .topic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .topic-card {
      overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface);
      box-shadow: var(--shadow-sm); transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .topic-card:hover { transform: translateY(-5px); border-color: rgba(123,79,53,.36); box-shadow: var(--shadow); }
    .topic-card img { width: 100%; aspect-ratio: 1.7 / 1; object-fit: cover; }
    .topic-content { padding: 22px; }
    .tag { display: inline-flex; padding: 5px 9px; border-radius: 6px; background: var(--accent-soft); color: var(--accent); font-size: 12px; font-weight: 800; }
    .topic-content h3 { margin-top: 14px; }
    .topic-content p { min-height: 50px; margin-bottom: 18px; color: var(--muted); font-size: 14px; }
    .text-link { color: var(--brand); font-size: 14px; font-weight: 800; }
    .text-link:hover { color: var(--accent); }

    .browse-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 40px; align-items: start; }
    .filter-box { position: sticky; top: 100px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
    .filter-box h3 { font-size: 1rem; }
    .filter-box p { margin-bottom: 16px; color: var(--muted); font-size: 14px; }
    .filter-points { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
    .filter-points li { padding: 10px 12px; border-radius: var(--radius-sm); background: var(--surface-soft); color: var(--muted); font-size: 14px; }
    .filter-points li.current { background: var(--gold-soft); color: var(--brand-strong); font-weight: 800; }
    .content-list { display: grid; gap: 14px; }
    .content-item {
      display: grid; grid-template-columns: 158px minmax(0, 1fr); gap: 20px; padding: 14px;
      border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface);
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .content-item:hover { transform: translateX(4px); border-color: rgba(47,111,99,.35); box-shadow: var(--shadow-sm); }
    .content-item img { width: 158px; height: 112px; object-fit: cover; border-radius: var(--radius-sm); }
    .item-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; color: var(--weak); font-size: 12px; }
    .content-item h3 { margin-bottom: 6px; }
    .content-item p { margin-bottom: 6px; color: var(--muted); font-size: 14px; }

    .faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; }
    .faq-list { display: grid; gap: 10px; }
    details { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); }
    summary { position: relative; padding: 18px 48px 18px 20px; cursor: pointer; list-style: none; font-weight: 800; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 20px; color: var(--brand); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { margin: 0; padding: 0 20px 20px; color: var(--muted); font-size: 14px; }

    .cta-section { padding: 70px 0; background: var(--accent); color: #fff; }
    .cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
    .cta-inner h2 { margin-bottom: 10px; color: #fff; }
    .cta-inner p { max-width: 650px; margin-bottom: 0; color: rgba(255,255,255,.76); }
    .cta-section .btn-primary { background: #f2d8a8; color: var(--brand-strong); box-shadow: none; }
    .cta-section .btn-primary:hover { background: #fff; }

    .site-footer { padding: 54px 0 20px; background: #28231f; color: #fff; }
    .footer-grid { display: grid; grid-template-columns: 1.35fr .7fr 1fr; gap: 56px; padding-bottom: 42px; }
    .footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 17px; font-weight: 800; }
    .footer-brand .brand-mark { width: 36px; height: 36px; border-radius: 10px; font-size: 16px; box-shadow: none; }
    .site-footer p { max-width: 410px; margin-bottom: 0; color: rgba(255,255,255,.62); font-size: 14px; }
    .footer-title { margin-bottom: 14px; color: #f2d8a8; font-weight: 800; }
    .footer-links { display: grid; gap: 9px; color: rgba(255,255,255,.62); font-size: 14px; }
    .footer-links a:hover { color: #fff; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.45); font-size: 12px; }

    @media (max-width: 1024px) {
      .hero-inner { grid-template-columns: 1fr 330px; gap: 36px; }
      .intro-grid, .faq-grid { gap: 36px; }
      .section { padding: 68px 0; }
    }
    @media (max-width: 768px) {
      :root { --header-h: 68px; }
      .container { width: min(100% - 32px, var(--container)); }
      .menu-btn { display: flex; }
      .nav-links {
        position: absolute; top: calc(100% + 1px); left: 16px; right: 16px; display: none; padding: 10px;
        flex-direction: column; align-items: stretch; border: 1px solid var(--line); border-radius: var(--radius);
        background: var(--surface); box-shadow: var(--shadow);
      }
      .nav-links.is-open { display: flex; }
      .nav-links a { justify-content: flex-start; min-height: 46px; }
      .hero { padding: 64px 0 56px; }
      .hero-inner, .intro-grid, .faq-grid, .browse-layout { grid-template-columns: 1fr; }
      .hero-note { max-width: 520px; }
      .filter-box { position: static; }
      .topic-grid { grid-template-columns: repeat(2, 1fr); }
      .cta-inner { align-items: flex-start; flex-direction: column; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
      .footer-grid > div:first-child { grid-column: 1 / -1; }
    }
    @media (max-width: 520px) {
      h1 { font-size: 2.35rem; }
      .lead { font-size: 16px; }
      .section { padding: 56px 0; }
      .section-head { display: block; margin-bottom: 24px; }
      .section-head .muted { margin-top: 10px; }
      .signal-grid { grid-template-columns: 1fr; }
      .signal-item, .signal-item:first-child { padding: 10px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.2); }
      .signal-item:last-child { border-bottom: 0; }
      .topic-grid { grid-template-columns: 1fr; }
      .content-item { grid-template-columns: 1fr; gap: 13px; }
      .content-item img { width: 100%; height: auto; aspect-ratio: 1.7 / 1; }
      .hero-actions .btn { width: 100%; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-grid > div:first-child { grid-column: auto; }
      .footer-bottom { flex-direction: column; gap: 6px; }
    }