/* roulang page: index */
:root {
      --bg: #111111;
      --bg-soft: #151313;
      --panel: #1c1a1a;
      --panel-2: #241e1f;
      --paper: #f7f2ec;
      --paper-2: #efe5da;
      --primary: #8a1f2d;
      --primary-dark: #701724;
      --accent: #c38a52;
      --accent-soft: rgba(195, 138, 82, .14);
      --text: #f5efe8;
      --text-soft: #d8ccc2;
      --muted: #afa19a;
      --dark-text: #201b1b;
      --dark-muted: #5f5550;
      --border: rgba(255, 255, 255, .10);
      --border-dark: rgba(32, 27, 27, .12);
      --shadow: 0 18px 40px rgba(0, 0, 0, .28);
      --shadow-soft: 0 12px 28px rgba(0, 0, 0, .18);
      --radius: 8px;
      --radius-btn: 6px;
      --container: 1180px;
      --section: 88px;
      --ease: 180ms ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      min-height: 100vh;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      color: var(--text);
      background:
        radial-gradient(circle at 18% 8%, rgba(138, 31, 45, .18), transparent 32%),
        linear-gradient(180deg, #111111 0%, #151313 42%, #111111 100%);
      overflow-x: hidden;
    }

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

    a:hover {
      color: var(--accent);
    }

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

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

    button {
      border: 0;
      cursor: pointer;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 3px;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(17, 17, 17, .86);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
    }

    .nav-wrap {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 26px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      letter-spacing: 0;
      color: var(--text);
      white-space: nowrap;
    }

    .brand-mark {
      width: 34px;
      height: 34px;
      border-radius: var(--radius-btn);
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 10px 24px rgba(138, 31, 45, .32);
      position: relative;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 9px;
      border: 2px solid rgba(255, 255, 255, .72);
      border-radius: 3px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-left: auto;
    }

    .nav-links a {
      padding: 10px 12px;
      border-radius: var(--radius-btn);
      color: var(--text-soft);
      font-size: 15px;
      line-height: 1.2;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text);
      background: rgba(138, 31, 45, .22);
    }

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

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: var(--radius-btn);
      color: var(--text);
      background: rgba(255, 255, 255, .06);
      border: 1px solid var(--border);
    }

    .menu-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      margin: 4px auto;
      background: currentColor;
      border-radius: 2px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 11px 18px;
      border-radius: var(--radius-btn);
      font-weight: 700;
      font-size: 15px;
      border: 1px solid transparent;
      transition: transform var(--ease), background var(--ease), border-color var(--ease), color var(--ease), box-shadow var(--ease);
    }

    .btn-primary {
      color: var(--text);
      background: var(--primary);
      box-shadow: 0 12px 26px rgba(138, 31, 45, .28);
    }

    .btn-primary:hover {
      color: var(--text);
      background: var(--primary-dark);
      transform: translateY(-1px);
    }

    .btn-secondary {
      color: var(--text);
      border-color: rgba(195, 138, 82, .48);
      background: rgba(255, 255, 255, .04);
    }

    .btn-secondary:hover {
      color: var(--text);
      border-color: var(--accent);
      background: var(--accent-soft);
      transform: translateY(-1px);
    }

    .btn:active {
      transform: translateY(1px);
    }

    .hero {
      min-height: calc(100vh - 72px);
      display: flex;
      align-items: center;
      padding: 74px 0 92px;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(17, 17, 17, .92) 0%, rgba(17, 17, 17, .70) 48%, rgba(17, 17, 17, .86) 100%),
        url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
      opacity: .9;
    }

    .hero::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 120px;
      background: linear-gradient(180deg, transparent, var(--bg-soft));
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.04fr) minmax(320px, .72fr);
      gap: 56px;
      align-items: end;
    }

    .eyebrow,
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 6px 10px;
      border-radius: var(--radius-btn);
      color: var(--accent);
      background: var(--accent-soft);
      border: 1px solid rgba(195, 138, 82, .28);
      font-size: 13px;
      font-weight: 700;
      line-height: 1.2;
    }

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

    h1 {
      margin-top: 18px;
      max-width: 780px;
      font-size: clamp(32px, 5vw, 52px);
      line-height: 1.14;
      letter-spacing: 0;
      font-weight: 800;
    }

    .hero-lead {
      max-width: 720px;
      margin-top: 22px;
      color: var(--text-soft);
      font-size: 17px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 30px;
    }

    .hero-meta {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 10px;
      margin-top: 34px;
      max-width: 760px;
    }

    .meta-chip {
      padding: 14px;
      border-radius: var(--radius);
      background: rgba(28, 26, 26, .78);
      border: 1px solid var(--border);
    }

    .meta-chip strong {
      display: block;
      color: var(--text);
      font-size: 18px;
      line-height: 1.2;
    }

    .meta-chip span {
      display: block;
      margin-top: 5px;
      color: var(--muted);
      font-size: 13px;
    }

    .hero-panel {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(28, 26, 26, .82);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .hero-panel-img {
      aspect-ratio: 4 / 3;
      overflow: hidden;
      position: relative;
    }

    .hero-panel-img img {
      height: 100%;
      object-fit: cover;
      filter: saturate(.9) contrast(1.05);
      transition: transform 360ms ease;
    }

    .hero-panel:hover .hero-panel-img img {
      transform: scale(1.04);
    }

    .hero-panel-img::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 30%, rgba(17, 17, 17, .76));
    }

    .panel-body {
      padding: 22px;
    }

    .panel-row {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      padding: 13px 0;
      border-top: 1px solid var(--border);
      color: var(--text-soft);
      font-size: 14px;
    }

    .panel-row:first-child {
      border-top: 0;
      padding-top: 0;
    }

    .panel-row b {
      color: var(--text);
    }

    .section {
      padding: var(--section) 0;
    }

    .section-paper {
      color: var(--dark-text);
      background: var(--paper);
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 34px;
    }

    .section-kicker {
      color: var(--accent);
      font-size: 14px;
      font-weight: 800;
      margin-bottom: 8px;
    }

    h2 {
      font-size: clamp(26px, 3.2vw, 34px);
      line-height: 1.24;
      letter-spacing: 0;
      font-weight: 800;
    }

    .section-desc {
      max-width: 590px;
      color: var(--muted);
      font-size: 16px;
    }

    .section-paper .section-desc,
    .section-paper .muted {
      color: var(--dark-muted);
    }

    .category-layout {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 18px;
      align-items: stretch;
    }

    .feature-card,
    .category-card,
    .update-card,
    .guide-card,
    .proof-card,
    .faq-item,
    .notice-card {
      border-radius: var(--radius);
      border: 1px solid var(--border);
      background: var(--panel);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
    }

    .feature-card {
      display: grid;
      grid-template-columns: .94fr 1fr;
      min-height: 420px;
    }

    .feature-media {
      position: relative;
      min-height: 100%;
      overflow: hidden;
    }

    .feature-media img,
    .category-media img {
      height: 100%;
      object-fit: cover;
      transition: transform 360ms ease;
    }

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

    .feature-media::after,
    .category-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(17, 17, 17, .08), rgba(17, 17, 17, .62));
    }

    .feature-content {
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 26px;
    }

    .feature-content h3,
    .category-card h3,
    .update-card h3,
    .guide-card h3,
    .proof-card h3 {
      font-size: 22px;
      line-height: 1.32;
      letter-spacing: 0;
    }

    .feature-content p,
    .category-card p,
    .guide-card p,
    .proof-card p,
    .notice-card p {
      margin-top: 10px;
      color: var(--text-soft);
      font-size: 15px;
    }

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

    .category-card {
      display: grid;
      grid-template-columns: 168px 1fr;
      min-height: 128px;
      transition: border-color var(--ease), transform var(--ease), background var(--ease);
    }

    .category-card:hover {
      border-color: rgba(138, 31, 45, .76);
      transform: translateY(-2px);
      background: var(--panel-2);
    }

    .category-media {
      aspect-ratio: 4 / 3;
      height: 100%;
      overflow: hidden;
      position: relative;
    }

    .category-content {
      padding: 20px;
    }

    .inline-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-top: 16px;
      color: var(--accent);
      font-weight: 800;
      border-bottom: 1px solid transparent;
    }

    .inline-link:hover {
      border-color: currentColor;
    }

    .updates-grid {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 18px;
      align-items: start;
    }

    .updates-intro {
      position: sticky;
      top: 96px;
      padding: 28px;
      border-radius: var(--radius);
      background: var(--panel-2);
      border: 1px solid var(--border);
    }

    .updates-intro p {
      margin-top: 14px;
      color: var(--text-soft);
    }

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

    .update-card {
      padding: 20px;
      transition: border-color var(--ease), transform var(--ease), background var(--ease);
    }

    .update-card:hover {
      border-color: rgba(195, 138, 82, .5);
      transform: translateY(-1px);
      background: var(--panel-2);
    }

    .update-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 10px;
    }

    .update-card h3 {
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .update-card p {
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-top: 8px;
      color: var(--text-soft);
      font-size: 15px;
    }

    .time {
      color: var(--muted);
      font-size: 13px;
      white-space: nowrap;
    }

    .empty-state {
      padding: 34px;
      border-radius: var(--radius);
      border: 1px dashed rgba(195, 138, 82, .45);
      background: rgba(195, 138, 82, .08);
      color: var(--text-soft);
      text-align: center;
    }

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

    .guide-card {
      padding: 24px;
      background: #fffaf4;
      border-color: var(--border-dark);
      color: var(--dark-text);
      position: relative;
    }

    .guide-card::before {
      counter-increment: guide;
      content: counter(guide, decimal-leading-zero);
      display: inline-flex;
      margin-bottom: 18px;
      color: var(--primary);
      font-weight: 900;
      font-size: 15px;
      letter-spacing: 0;
    }

    .guide-card p {
      color: var(--dark-muted);
    }

    .safety-band {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 28px;
      align-items: center;
      padding: 34px;
      border-radius: var(--radius);
      background:
        linear-gradient(90deg, rgba(36, 30, 31, .96), rgba(28, 26, 26, .92)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-soft);
    }

    .safety-image {
      aspect-ratio: 4 / 3;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
    }

    .safety-image img {
      height: 100%;
      object-fit: cover;
    }

    .notice-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-top: 24px;
    }

    .notice-card {
      padding: 18px;
      background: rgba(255, 255, 255, .045);
      box-shadow: none;
    }

    .notice-card h3 {
      font-size: 18px;
    }

    .proof-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .proof-card {
      padding: 24px;
    }

    .proof-card .num {
      display: block;
      margin-bottom: 14px;
      color: var(--accent);
      font-size: 28px;
      font-weight: 900;
      line-height: 1;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: .82fr 1.18fr;
      gap: 28px;
      align-items: start;
    }

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

    .faq-item {
      background: var(--panel);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 18px 20px;
      color: var(--text);
      background: transparent;
      text-align: left;
      font-weight: 800;
    }

    .faq-question::after {
      content: "+";
      flex: 0 0 auto;
      width: 24px;
      height: 24px;
      display: grid;
      place-items: center;
      border-radius: var(--radius-btn);
      background: rgba(195, 138, 82, .16);
      color: var(--accent);
    }

    .faq-item.open .faq-question::after {
      content: "−";
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px;
      color: var(--text-soft);
      font-size: 15px;
    }

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

    .feedback {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 28px;
      align-items: start;
      padding: 34px;
      border-radius: var(--radius);
      background: var(--paper);
      color: var(--dark-text);
    }

    .feedback p {
      margin-top: 12px;
      color: var(--dark-muted);
    }

    .feedback-form {
      display: grid;
      gap: 14px;
    }

    .field label {
      display: block;
      margin-bottom: 7px;
      color: var(--dark-text);
      font-size: 14px;
      font-weight: 800;
    }

    .field input,
    .field textarea,
    .field select {
      width: 100%;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-btn);
      padding: 12px 13px;
      color: var(--dark-text);
      background: #fffaf4;
      transition: border-color var(--ease), box-shadow var(--ease);
    }

    .field textarea {
      min-height: 108px;
      resize: vertical;
    }

    .field input::placeholder,
    .field textarea::placeholder {
      color: #8b7f77;
    }

    .field input:focus,
    .field textarea:focus,
    .field select:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(195, 138, 82, .18);
      outline: none;
    }

    .cta {
      padding: 62px 0;
      background:
        linear-gradient(90deg, rgba(138, 31, 45, .94), rgba(36, 30, 31, .96)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
    }

    .cta-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .cta p {
      max-width: 660px;
      margin-top: 10px;
      color: rgba(245, 239, 232, .82);
    }

    .site-footer {
      padding: 54px 0 28px;
      background: #0d0d0d;
      border-top: 1px solid var(--border);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr .85fr;
      gap: 34px;
      margin-bottom: 34px;
    }

    .footer-text {
      margin-top: 14px;
      max-width: 460px;
      color: var(--muted);
      font-size: 14px;
    }

    .footer-title {
      margin-bottom: 14px;
      color: var(--text);
      font-weight: 900;
    }

    .footer-links {
      display: grid;
      gap: 9px;
    }

    .footer-links a {
      color: var(--muted);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--accent);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      padding-top: 22px;
      border-top: 1px solid var(--border);
      color: #8e817a;
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      :root {
        --section: 70px;
      }

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

      .hero-inner,
      .category-layout,
      .updates-grid,
      .safety-band,
      .faq-grid,
      .feedback {
        grid-template-columns: 1fr;
      }

      .updates-intro {
        position: static;
      }

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

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

      .feature-media {
        aspect-ratio: 16 / 9;
        min-height: auto;
      }
    }

    @media (max-width: 768px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .nav-wrap {
        height: 66px;
      }

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

      .nav-links {
        position: absolute;
        left: 0;
        right: 0;
        top: 66px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 10px 14px 18px;
        background: rgba(17, 17, 17, .98);
        border-bottom: 1px solid var(--border);
      }

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

      .nav-links a {
        padding: 14px;
      }

      .hero {
        min-height: auto;
        padding: 54px 0 70px;
      }

      .hero-inner {
        gap: 28px;
      }

      .hero-meta,
      .notice-list,
      .proof-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .section-head,
      .cta-inner,
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }

      .category-card {
        grid-template-columns: 128px 1fr;
      }

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

      .feedback,
      .safety-band {
        padding: 24px;
      }
    }

    @media (max-width: 520px) {
      h1 {
        font-size: 32px;
      }

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

      .btn {
        width: 100%;
      }

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

      .category-media {
        aspect-ratio: 16 / 9;
      }

      .feature-content,
      .panel-body {
        padding: 20px;
      }

      .meta-chip strong {
        font-size: 16px;
      }
    }

/* roulang page: article */
:root {
      --bg: #111111;
      --bg-soft: #151313;
      --panel: #1c1a1a;
      --panel-strong: #241e1f;
      --paper: #f7f2ec;
      --paper-soft: #efe5da;
      --text: #f5efe8;
      --muted: #d8ccc2;
      --weak: #afa19a;
      --ink: #201b1b;
      --ink-soft: #5f5550;
      --primary: #8a1f2d;
      --primary-dark: #701624;
      --accent: #c38a52;
      --accent-soft: rgba(195, 138, 82, .14);
      --line: rgba(255, 255, 255, .1);
      --line-dark: rgba(32, 27, 27, .12);
      --shadow: 0 18px 42px rgba(0, 0, 0, .28);
      --shadow-soft: 0 12px 26px rgba(0, 0, 0, .18);
      --radius: 8px;
      --radius-sm: 6px;
      --container: 1180px;
      --focus: 0 0 0 3px rgba(195, 138, 82, .32);
      --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font);
      color: var(--text);
      background:
        radial-gradient(circle at 18% 8%, rgba(138, 31, 45, .16), transparent 28%),
        linear-gradient(180deg, #151313 0%, #111111 42%, #151313 100%);
      line-height: 1.7;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }

    body.no-scroll {
      overflow: hidden;
    }

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

    a:hover {
      color: var(--accent);
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible {
      outline: none;
      box-shadow: var(--focus);
      border-color: var(--accent);
    }

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

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

    button {
      cursor: pointer;
      border: 0;
    }

    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(17, 17, 17, .88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--line);
    }

    .header-inner {
      min-height: 74px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

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

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

    .brand-mark {
      width: 34px;
      height: 34px;
      flex: 0 0 auto;
      border-radius: var(--radius-sm);
      background:
        linear-gradient(135deg, var(--primary), #4b1119 58%, var(--accent));
      position: relative;
      box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .16), 0 10px 22px rgba(138, 31, 45, .2);
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      left: 9px;
      top: 9px;
      width: 16px;
      height: 16px;
      border: 2px solid rgba(247, 242, 236, .9);
      border-top-color: transparent;
      transform: rotate(45deg);
      border-radius: 3px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      flex: 1 1 auto;
    }

    .nav-links a {
      color: var(--muted);
      padding: 10px 13px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      white-space: nowrap;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text);
      background: rgba(138, 31, 45, .82);
    }

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

    .btn,
    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 42px;
      padding: 10px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      font-weight: 700;
      font-size: 15px;
      line-height: 1.2;
      transition: transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
    }

    .btn-primary,
    .nav-cta {
      background: var(--primary);
      color: var(--text);
      box-shadow: 0 12px 24px rgba(138, 31, 45, .22);
    }

    .btn-primary:hover,
    .nav-cta:hover {
      background: var(--primary-dark);
      color: var(--text);
      transform: translateY(-1px);
    }

    .btn-secondary {
      background: transparent;
      color: var(--text);
      border-color: rgba(195, 138, 82, .55);
    }

    .btn-secondary:hover {
      color: var(--text);
      border-color: var(--accent);
      background: rgba(195, 138, 82, .1);
      transform: translateY(-1px);
    }

    .btn:active,
    .nav-cta:active,
    .menu-toggle:active {
      transform: translateY(1px);
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, .06);
      border: 1px solid var(--line);
      color: var(--text);
      align-items: center;
      justify-content: center;
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
    }

    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      display: block;
      width: 18px;
      height: 2px;
      background: currentColor;
      border-radius: 2px;
      position: relative;
      transition: transform .2s ease, opacity .2s ease;
    }

    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
    }

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

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

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

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

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

    .article-shell {
      padding: 42px 0 86px;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 9px;
      margin: 18px 0 28px;
      color: var(--weak);
      font-size: 14px;
    }

    .breadcrumb a {
      color: var(--muted);
      border-bottom: 1px solid transparent;
    }

    .breadcrumb a:hover {
      color: var(--accent);
      border-bottom-color: rgba(195, 138, 82, .5);
    }

    .breadcrumb span {
      color: var(--weak);
    }

    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 820px) 320px;
      gap: 38px;
      align-items: start;
    }

    .article-main {
      min-width: 0;
    }

    .article-head {
      padding: 34px 0 28px;
      border-bottom: 1px solid var(--line);
    }

    .kicker-row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 18px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      min-height: 28px;
      padding: 5px 10px;
      border-radius: var(--radius-sm);
      background: var(--accent-soft);
      color: #f0c08d;
      border: 1px solid rgba(195, 138, 82, .24);
      font-size: 13px;
      font-weight: 700;
    }

    .badge::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
    }

    .article-title {
      margin: 0;
      color: var(--text);
      font-size: clamp(32px, 4vw, 48px);
      line-height: 1.18;
      font-weight: 800;
      letter-spacing: 0;
      overflow-wrap: anywhere;
    }

    .article-desc {
      margin: 18px 0 0;
      max-width: 760px;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.85;
    }

    .meta-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 18px;
      margin-top: 22px;
      color: var(--weak);
      font-size: 14px;
    }

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

    .meta-dot {
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: rgba(195, 138, 82, .9);
      flex: 0 0 auto;
    }

    .article-cover {
      margin: 28px 0 0;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-soft);
      background: var(--panel);
      position: relative;
      aspect-ratio: 16 / 7;
    }

    .article-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      filter: saturate(.92) contrast(1.02) brightness(.86);
    }

    .article-cover::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(17, 17, 17, .04), rgba(17, 17, 17, .42));
      pointer-events: none;
    }

    .reading-note {
      margin: 26px 0 0;
      padding: 16px 18px;
      border-radius: var(--radius);
      border: 1px solid rgba(195, 138, 82, .28);
      background: rgba(195, 138, 82, .08);
      color: var(--muted);
      font-size: 15px;
    }

    .content-card {
      margin-top: 30px;
      padding: 38px 42px;
      background: var(--paper);
      color: var(--ink);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      border: 1px solid rgba(247, 242, 236, .3);
    }

    .article-content {
      font-size: 17px;
      line-height: 1.85;
      overflow-wrap: break-word;
    }

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

    .article-content h2 {
      margin: 2em 0 .75em;
      color: var(--ink);
      font-size: 28px;
      line-height: 1.35;
      font-weight: 800;
      padding-top: .2em;
    }

    .article-content h3 {
      margin: 1.7em 0 .65em;
      color: var(--ink);
      font-size: 22px;
      line-height: 1.4;
      font-weight: 800;
    }

    .article-content h4 {
      margin: 1.4em 0 .55em;
      font-size: 18px;
      color: var(--ink);
    }

    .article-content a {
      color: #8a1f2d;
      border-bottom: 1px solid rgba(138, 31, 45, .35);
      font-weight: 700;
    }

    .article-content a:hover {
      color: #701624;
      border-bottom-color: #701624;
    }

    .article-content ul,
    .article-content ol {
      margin: 0 0 1.35em 1.2em;
      padding: 0;
    }

    .article-content li {
      margin: .45em 0;
      padding-left: .15em;
    }

    .article-content blockquote {
      margin: 1.6em 0;
      padding: 18px 20px;
      border-left: 4px solid var(--primary);
      background: #fffaf4;
      color: var(--ink-soft);
      border-radius: 0 var(--radius) var(--radius) 0;
    }

    .article-content img {
      width: auto;
      max-width: 100%;
      height: auto;
      border-radius: var(--radius);
      margin: 1.5em auto;
      box-shadow: 0 12px 28px rgba(32, 27, 27, .16);
    }

    .article-content figure {
      margin: 1.6em 0;
    }

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

    .article-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 1.6em 0;
      font-size: 15px;
      overflow: hidden;
      border-radius: var(--radius);
    }

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

    .article-content th {
      background: #eaded1;
      font-weight: 800;
    }

    .article-content code {
      padding: 2px 6px;
      border-radius: 4px;
      background: #eaded1;
      color: #701624;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: .92em;
    }

    .not-found-box {
      text-align: center;
      padding: 52px 20px;
    }

    .not-found-box h2 {
      margin: 0 0 12px;
      color: var(--ink);
      font-size: 28px;
    }

    .not-found-box p {
      margin: 0 auto 22px;
      max-width: 520px;
      color: var(--ink-soft);
    }

    .article-footer-nav {
      margin-top: 26px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .next-card {
      display: block;
      padding: 18px;
      border-radius: var(--radius);
      background: var(--panel);
      border: 1px solid var(--line);
      color: var(--muted);
      min-height: 94px;
    }

    .next-card strong {
      display: block;
      color: var(--text);
      font-size: 17px;
      margin-bottom: 6px;
    }

    .next-card:hover {
      border-color: rgba(195, 138, 82, .6);
      transform: translateY(-2px);
      box-shadow: var(--shadow-soft);
    }

    .article-sidebar {
      position: sticky;
      top: 96px;
      display: grid;
      gap: 18px;
    }

    .side-card {
      border-radius: var(--radius);
      background: rgba(28, 26, 26, .86);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
    }

    .side-card.pad {
      padding: 20px;
    }

    .side-title {
      margin: 0 0 14px;
      color: var(--text);
      font-size: 18px;
      line-height: 1.35;
      font-weight: 800;
    }

    .side-text {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .side-cover {
      aspect-ratio: 4 / 3;
      overflow: hidden;
      background: #201b1b;
    }

    .side-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .35s ease;
      filter: brightness(.86) saturate(.92);
    }

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

    .side-body {
      padding: 18px;
    }

    .side-list {
      display: grid;
      gap: 10px;
    }

    .side-list a {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 11px 0;
      border-bottom: 1px solid var(--line);
      color: var(--muted);
      font-size: 14px;
    }

    .side-list a:last-child {
      border-bottom: 0;
    }

    .side-list a:hover {
      color: var(--accent);
      transform: translateX(2px);
    }

    .side-list small {
      color: var(--weak);
      white-space: nowrap;
    }

    .tip-list {
      margin: 14px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 11px;
    }

    .tip-list li {
      display: flex;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .tip-list li::before {
      content: "";
      width: 7px;
      height: 7px;
      margin-top: 9px;
      border-radius: 50%;
      background: var(--accent);
      flex: 0 0 auto;
    }

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

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 24px;
      border-top: 1px solid var(--line);
      padding-top: 34px;
    }

    .section-head h2 {
      margin: 0;
      font-size: 30px;
      line-height: 1.28;
      color: var(--text);
    }

    .section-head p {
      margin: 8px 0 0;
      max-width: 620px;
      color: var(--weak);
      font-size: 15px;
    }

    .recommend-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .recommend-card {
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }

    .recommend-img {
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: var(--panel-strong);
    }

    .recommend-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      filter: brightness(.86) saturate(.92);
      transition: transform .35s ease;
    }

    .recommend-card:hover {
      border-color: rgba(138, 31, 45, .72);
      transform: translateY(-2px);
    }

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

    .recommend-body {
      padding: 18px;
    }

    .recommend-body h3 {
      margin: 0 0 8px;
      font-size: 19px;
      line-height: 1.4;
      color: var(--text);
    }

    .recommend-body p {
      margin: 0 0 14px;
      color: var(--weak);
      font-size: 14px;
      line-height: 1.75;
    }

    .text-link {
      color: var(--accent);
      font-weight: 800;
      border-bottom: 1px solid rgba(195, 138, 82, .36);
    }

    .text-link:hover {
      color: #e0a76d;
      border-bottom-color: #e0a76d;
    }

    .cta-band {
      padding: 72px 0;
      background: var(--paper);
      color: var(--ink);
    }

    .cta-box {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
      padding: 34px;
      border-radius: var(--radius);
      background:
        linear-gradient(135deg, rgba(138, 31, 45, .09), rgba(195, 138, 82, .14)),
        #fffaf4;
      border: 1px solid var(--line-dark);
    }

    .cta-box h2 {
      margin: 0 0 8px;
      font-size: 30px;
      line-height: 1.3;
    }

    .cta-box p {
      margin: 0;
      color: var(--ink-soft);
      max-width: 720px;
    }

    .site-footer {
      background: #0e0e0e;
      border-top: 1px solid var(--line);
      padding: 58px 0 24px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .8fr;
      gap: 34px;
      align-items: start;
    }

    .footer-text {
      margin: 16px 0 0;
      max-width: 520px;
      color: var(--weak);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-title {
      color: var(--text);
      font-weight: 800;
      margin-bottom: 12px;
      font-size: 16px;
    }

    .footer-links {
      display: grid;
      gap: 9px;
    }

    .footer-links a {
      color: var(--weak);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--accent);
      transform: translateX(2px);
    }

    .footer-bottom {
      margin-top: 34px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      display: flex;
      justify-content: space-between;
      gap: 20px;
      color: rgba(216, 204, 194, .72);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .container {
        width: min(100% - 32px, var(--container));
      }

      .nav-links {
        position: fixed;
        left: 16px;
        right: 16px;
        top: 82px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding: 14px;
        background: rgba(21, 19, 19, .98);
        border: 1px solid var(--line);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
      }

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

      .nav-links a {
        padding: 13px 14px;
        width: 100%;
      }

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

      .header-actions .nav-cta {
        display: none;
      }

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

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

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

      .cta-box {
        grid-template-columns: 1fr;
      }
    }

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

      .brand {
        font-size: 15px;
      }

      .brand-mark {
        width: 30px;
        height: 30px;
      }

      .article-shell {
        padding: 26px 0 62px;
      }

      .article-head {
        padding-top: 22px;
      }

      .article-title {
        font-size: clamp(30px, 9vw, 38px);
      }

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

      .article-cover {
        aspect-ratio: 16 / 10;
      }

      .content-card {
        padding: 28px 22px;
      }

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

      .article-content h2 {
        font-size: 24px;
      }

      .article-content h3 {
        font-size: 20px;
      }

      .article-footer-nav,
      .article-sidebar,
      .recommend-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .section-head {
        display: block;
      }

      .cta-band {
        padding: 56px 0;
      }

      .cta-box {
        padding: 26px 20px;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .breadcrumb {
        margin-top: 12px;
        font-size: 13px;
      }

      .kicker-row {
        gap: 8px;
      }

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

      .content-card {
        margin-left: -2px;
        margin-right: -2px;
        padding: 24px 18px;
      }

      .article-content table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
      }

      .btn,
      .nav-cta {
        width: 100%;
      }

      .recommend-body h3 {
        font-size: 18px;
      }
    }

/* roulang page: category1 */
:root {
      --bg: #111111;
      --bg-soft: #151313;
      --panel: #1c1a1a;
      --panel-2: #241e1f;
      --paper: #f7f2ec;
      --paper-2: #eee5dc;
      --text: #f5efe8;
      --text-soft: #d8ccc2;
      --muted: #afa19a;
      --dark-text: #201b1b;
      --dark-muted: #5f5550;
      --primary: #8a1f2d;
      --primary-dark: #6f1723;
      --accent: #c38a52;
      --accent-2: #d5a06b;
      --border: rgba(255, 255, 255, .10);
      --border-dark: rgba(32, 27, 27, .12);
      --shadow: 0 18px 42px rgba(0, 0, 0, .24);
      --shadow-soft: 0 12px 28px rgba(0, 0, 0, .16);
      --radius: 8px;
      --radius-sm: 6px;
      --container: 1180px;
      --ease: 180ms ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      min-height: 100vh;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.7;
      color: var(--text);
      background: var(--bg);
      overflow-x: hidden;
    }

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

    a:hover {
      color: var(--accent-2);
    }

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

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

    button {
      border: 0;
      cursor: pointer;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 3px;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(17, 17, 17, .92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
    }

    .header-inner {
      min-height: 74px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      color: var(--text);
      font-weight: 800;
      letter-spacing: 0;
      white-space: nowrap;
    }

    .brand-mark {
      width: 32px;
      height: 32px;
      border-radius: 7px;
      background:
        linear-gradient(135deg, rgba(195, 138, 82, .95), rgba(138, 31, 45, .95)),
        #8a1f2d;
      position: relative;
      box-shadow: 0 8px 22px rgba(138, 31, 45, .28);
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 8px;
      border: 1px solid rgba(255, 255, 255, .58);
      border-radius: 4px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      margin-left: auto;
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      min-height: 40px;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      color: var(--text-soft);
      font-size: 15px;
      font-weight: 600;
    }

    .nav-links a:hover {
      background: rgba(195, 138, 82, .10);
      color: var(--text);
    }

    .nav-links a.active {
      background: rgba(138, 31, 45, .92);
      color: var(--text);
    }

    .header-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 9px 16px;
      border-radius: var(--radius-sm);
      background: var(--primary);
      color: var(--text);
      font-weight: 700;
      font-size: 15px;
      box-shadow: 0 10px 26px rgba(138, 31, 45, .22);
    }

    .header-cta:hover {
      background: var(--primary-dark);
      color: var(--text);
      transform: translateY(-1px);
    }

    .header-cta:active,
    .btn:active {
      transform: translateY(0);
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, .06);
      border: 1px solid var(--border);
      color: var(--text);
      align-items: center;
      justify-content: center;
    }

    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      display: block;
      width: 18px;
      height: 2px;
      background: currentColor;
      border-radius: 2px;
      position: relative;
      transition: transform var(--ease), opacity var(--ease);
    }

    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
    }

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

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

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

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

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

    .section {
      padding: 84px 0;
    }

    .section-tight {
      padding: 64px 0;
    }

    .section-paper {
      background: var(--paper);
      color: var(--dark-text);
    }

    .section-panel {
      background: var(--bg-soft);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, .9fr) minmax(260px, .55fr);
      gap: 36px;
      align-items: end;
      margin-bottom: 34px;
    }

    .section-kicker,
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--accent-2);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .section-kicker::before,
    .eyebrow::before {
      content: "";
      width: 22px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    h1,
    h2,
    h3 {
      line-height: 1.18;
      letter-spacing: 0;
    }

    h1 {
      font-size: clamp(32px, 5vw, 50px);
      max-width: 880px;
      font-weight: 800;
    }

    h2 {
      font-size: clamp(28px, 3.2vw, 34px);
      font-weight: 800;
    }

    h3 {
      font-size: 21px;
      font-weight: 750;
    }

    .lead {
      color: var(--text-soft);
      font-size: 17px;
      max-width: 760px;
      margin-top: 18px;
    }

    .section-paper .lead,
    .section-paper .muted,
    .section-paper .card p,
    .section-paper .step p {
      color: var(--dark-muted);
    }

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

    .hero-category {
      position: relative;
      min-height: calc(100vh - 74px);
      max-height: 820px;
      display: flex;
      align-items: center;
      overflow: hidden;
      border-bottom: 1px solid var(--border);
      background: #151313;
    }

    .hero-category::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(17, 17, 17, .92) 0%, rgba(17, 17, 17, .76) 46%, rgba(17, 17, 17, .42) 100%),
        linear-gradient(0deg, rgba(17, 17, 17, .94) 0%, rgba(17, 17, 17, .18) 48%, rgba(17, 17, 17, .32) 100%),
        url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
    }

    .hero-category .container {
      position: relative;
      z-index: 1;
      padding: 58px 0 72px;
    }

    .hero-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 360px;
      gap: 46px;
      align-items: center;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 28px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: var(--radius-sm);
      font-weight: 800;
      font-size: 15px;
      transition: transform var(--ease), background var(--ease), border-color var(--ease), color var(--ease), box-shadow var(--ease);
    }

    .btn-primary {
      background: var(--primary);
      color: var(--text);
      box-shadow: 0 12px 28px rgba(138, 31, 45, .28);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      color: var(--text);
      transform: translateY(-1px);
    }

    .btn-secondary {
      border: 1px solid rgba(195, 138, 82, .55);
      color: var(--text);
      background: rgba(255, 255, 255, .04);
    }

    .btn-secondary:hover {
      border-color: var(--accent);
      background: rgba(195, 138, 82, .12);
      color: var(--accent-2);
      transform: translateY(-1px);
    }

    .hero-panel {
      border: 1px solid var(--border);
      background: rgba(28, 26, 26, .84);
      box-shadow: var(--shadow);
      border-radius: var(--radius);
      overflow: hidden;
    }

    .hero-panel figure {
      position: relative;
      aspect-ratio: 4 / 3;
      overflow: hidden;
    }

    .hero-panel img {
      height: 100%;
      object-fit: cover;
      filter: saturate(.92) contrast(1.04);
      transition: transform 420ms ease;
    }

    .hero-panel:hover img {
      transform: scale(1.04);
    }

    .hero-panel figure::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(17, 17, 17, 0) 34%, rgba(17, 17, 17, .82) 100%);
    }

    .hero-panel-body {
      padding: 20px;
    }

    .hero-panel-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 10px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      min-height: 26px;
      padding: 4px 9px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(195, 138, 82, .36);
      background: rgba(195, 138, 82, .12);
      color: var(--accent-2);
      font-size: 12px;
      font-weight: 800;
      white-space: nowrap;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
      margin-top: 26px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 32px;
      padding: 5px 11px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, .07);
      color: var(--text-soft);
      border: 1px solid var(--border);
      font-size: 13px;
      font-weight: 700;
    }

    .feature-strip {
      margin-top: -32px;
      position: relative;
      z-index: 2;
    }

    .strip-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      border: 1px solid var(--border);
      background: rgba(28, 26, 26, .96);
      box-shadow: var(--shadow-soft);
      border-radius: var(--radius);
      overflow: hidden;
    }

    .strip-item {
      padding: 22px;
      border-right: 1px solid var(--border);
    }

    .strip-item:last-child {
      border-right: 0;
    }

    .strip-num {
      display: block;
      color: var(--accent-2);
      font-size: 22px;
      font-weight: 850;
      line-height: 1;
      margin-bottom: 9px;
    }

    .strip-item p {
      color: var(--text-soft);
      font-size: 14px;
      line-height: 1.6;
    }

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

    .selection-card {
      display: grid;
      grid-template-columns: 190px minmax(0, 1fr);
      gap: 0;
      min-height: 214px;
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
    }

    .selection-card.large {
      grid-row: span 2;
      grid-template-columns: 1fr;
      min-height: 450px;
    }

    .selection-card:hover {
      transform: translateY(-3px);
      border-color: rgba(138, 31, 45, .78);
      box-shadow: var(--shadow);
    }

    .selection-media {
      position: relative;
      overflow: hidden;
      min-height: 100%;
    }

    .selection-card:not(.large) .selection-media {
      aspect-ratio: 4 / 3;
    }

    .selection-card.large .selection-media {
      aspect-ratio: 16 / 9;
    }

    .selection-media img {
      height: 100%;
      object-fit: cover;
      transition: transform 420ms ease;
    }

    .selection-card:hover .selection-media img {
      transform: scale(1.04);
    }

    .selection-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(17, 17, 17, 0) 22%, rgba(17, 17, 17, .64) 100%);
    }

    .selection-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 18px;
    }

    .selection-body p {
      color: var(--text-soft);
      margin-top: 10px;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--accent-2);
      font-weight: 800;
      width: fit-content;
      border-bottom: 1px solid transparent;
    }

    .text-link:hover {
      border-color: currentColor;
      color: var(--accent);
    }

    .filter-band {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 36px;
      align-items: start;
    }

    .filter-box {
      background: var(--paper);
      color: var(--dark-text);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 28px;
      box-shadow: 0 12px 34px rgba(32, 27, 27, .10);
    }

    .filter-list {
      display: grid;
      gap: 14px;
      list-style: none;
    }

    .filter-list li {
      display: grid;
      grid-template-columns: 32px minmax(0, 1fr);
      gap: 14px;
      padding: 18px;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, .54);
    }

    .check {
      width: 32px;
      height: 32px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: var(--text);
      font-weight: 900;
      line-height: 1;
    }

    .filter-list strong {
      display: block;
      color: var(--dark-text);
      margin-bottom: 4px;
    }

    .filter-list span {
      color: var(--dark-muted);
      font-size: 15px;
    }

    .criteria-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 18px;
    }

    .criteria-card {
      min-height: 170px;
      padding: 22px;
      border-radius: var(--radius);
      background: var(--panel-2);
      border: 1px solid var(--border);
      transition: transform var(--ease), border-color var(--ease);
    }

    .criteria-card:hover {
      transform: translateY(-2px);
      border-color: rgba(195, 138, 82, .55);
    }

    .criteria-card .badge {
      margin-bottom: 14px;
    }

    .criteria-card p {
      color: var(--text-soft);
      margin-top: 10px;
      font-size: 15px;
    }

    .recommend-layout {
      display: grid;
      grid-template-columns: 360px minmax(0, 1fr);
      gap: 26px;
      align-items: start;
    }

    .visual-note {
      position: sticky;
      top: 98px;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
      background: var(--panel);
      box-shadow: var(--shadow-soft);
    }

    .visual-note figure {
      aspect-ratio: 4 / 5;
      overflow: hidden;
      position: relative;
    }

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

    .visual-note figure::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(17, 17, 17, .05), rgba(17, 17, 17, .86));
    }

    .visual-note-body {
      padding: 22px;
    }

    .resource-list {
      display: grid;
      gap: 14px;
      list-style: none;
    }

    .resource-item {
      display: grid;
      grid-template-columns: 140px minmax(0, 1fr) auto;
      gap: 18px;
      align-items: center;
      padding: 18px;
      border-radius: var(--radius);
      background: var(--panel);
      border: 1px solid var(--border);
      transition: transform var(--ease), border-color var(--ease), background var(--ease);
    }

    .resource-item:hover {
      transform: translateY(-2px);
      border-color: rgba(138, 31, 45, .78);
      background: #211d1d;
    }

    .resource-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 8px;
    }

    .resource-item p {
      color: var(--text-soft);
      margin-top: 6px;
      font-size: 15px;
    }

    .mini-label {
      display: inline-flex;
      min-height: 24px;
      align-items: center;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, .06);
      border: 1px solid var(--border);
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
    }

    .arrow-btn {
      width: 42px;
      height: 42px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(195, 138, 82, .12);
      border: 1px solid rgba(195, 138, 82, .35);
      color: var(--accent-2);
      font-size: 20px;
      line-height: 1;
    }

    .resource-item:hover .arrow-btn {
      background: var(--primary);
      border-color: var(--primary);
      color: var(--text);
    }

    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      counter-reset: step;
    }

    .step {
      counter-increment: step;
      position: relative;
      padding: 24px;
      border-radius: var(--radius);
      border: 1px solid var(--border-dark);
      background: rgba(255, 255, 255, .64);
      min-height: 210px;
    }

    .step::before {
      content: counter(step, decimal-leading-zero);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 32px;
      border-radius: var(--radius-sm);
      background: var(--dark-text);
      color: var(--paper);
      font-weight: 850;
      margin-bottom: 20px;
    }

    .step h3 {
      color: var(--dark-text);
      margin-bottom: 10px;
    }

    .notice-panel {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 28px;
      align-items: center;
      padding: 34px;
      background: var(--panel-2);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow-soft);
    }

    .notice-list {
      display: grid;
      gap: 12px;
      list-style: none;
    }

    .notice-list li {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      color: var(--text-soft);
      padding: 13px 0;
      border-bottom: 1px solid var(--border);
    }

    .notice-list li:last-child {
      border-bottom: 0;
    }

    .dot {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--accent);
      margin-top: 9px;
      flex: 0 0 auto;
    }

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

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

    .faq-item {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--panel);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      min-height: 62px;
      padding: 18px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 18px;
      color: var(--text);
      background: transparent;
      text-align: left;
      font-weight: 800;
    }

    .faq-question:hover {
      background: rgba(195, 138, 82, .08);
    }

    .faq-icon {
      width: 26px;
      height: 26px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(195, 138, 82, .12);
      color: var(--accent-2);
      flex: 0 0 auto;
      transition: transform var(--ease), background var(--ease);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 240ms ease;
    }

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

    .faq-item.is-open .faq-answer {
      max-height: 220px;
    }

    .cta {
      position: relative;
      overflow: hidden;
      background:
        linear-gradient(90deg, rgba(32, 27, 27, .88), rgba(32, 27, 27, .56)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .cta-box {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 26px;
      align-items: center;
      padding: 62px 0;
    }

    .cta p {
      color: var(--text-soft);
      margin-top: 12px;
      max-width: 700px;
    }

    .site-footer {
      background: #0d0d0d;
      border-top: 1px solid var(--border);
      padding: 54px 0 28px;
      color: var(--text-soft);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .6fr .6fr;
      gap: 42px;
      align-items: start;
    }

    .footer-text {
      margin-top: 16px;
      max-width: 520px;
      color: var(--muted);
      font-size: 15px;
    }

    .footer-title {
      color: var(--text);
      font-weight: 800;
      margin-bottom: 14px;
    }

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

    .footer-links a {
      color: var(--muted);
      width: fit-content;
      border-bottom: 1px solid transparent;
    }

    .footer-links a:hover {
      color: var(--accent-2);
      border-color: currentColor;
    }

    .footer-bottom {
      margin-top: 42px;
      padding-top: 22px;
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      color: #8f827b;
      font-size: 14px;
    }

    @media (max-width: 1024px) {
      .header-cta {
        display: none;
      }

      .hero-layout,
      .filter-band,
      .recommend-layout,
      .faq-grid,
      .notice-panel,
      .section-head {
        grid-template-columns: 1fr;
      }

      .visual-note {
        position: static;
      }

      .visual-note figure {
        aspect-ratio: 16 / 8;
      }

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

      .strip-item:nth-child(2) {
        border-right: 0;
      }

      .strip-item:nth-child(1),
      .strip-item:nth-child(2) {
        border-bottom: 1px solid var(--border);
      }

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

      .selection-card.large {
        min-height: auto;
      }
    }

    @media (max-width: 768px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .header-inner {
        min-height: 66px;
      }

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

      .nav-links {
        position: absolute;
        left: 0;
        right: 0;
        top: 66px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px 14px 18px;
        background: rgba(17, 17, 17, .98);
        border-bottom: 1px solid var(--border);
      }

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

      .nav-links a {
        min-height: 46px;
        justify-content: space-between;
      }

      .hero-category {
        min-height: auto;
        max-height: none;
      }

      .hero-category .container {
        padding: 48px 0 66px;
      }

      .hero-layout {
        gap: 28px;
      }

      .hero-panel {
        max-width: 480px;
      }

      .section {
        padding: 58px 0;
      }

      .section-tight {
        padding: 48px 0;
      }

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

      .strip-item {
        border-right: 0;
        border-bottom: 1px solid var(--border);
      }

      .strip-item:last-child {
        border-bottom: 0;
      }

      .selection-card,
      .resource-item {
        grid-template-columns: 1fr;
      }

      .selection-card:not(.large) .selection-media {
        aspect-ratio: 16 / 9;
      }

      .resource-item .arrow-btn {
        width: 100%;
      }

      .cta-box {
        grid-template-columns: 1fr;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

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

      h1 {
        font-size: 32px;
      }

      .brand span:last-child {
        max-width: 190px;
        overflow-wrap: anywhere;
      }

      .hero-actions,
      .cta-box .hero-actions {
        flex-direction: column;
      }

      .btn {
        width: 100%;
      }

      .filter-box,
      .notice-panel,
      .selection-body,
      .criteria-card,
      .step {
        padding: 20px;
      }

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

/* roulang page: category3 */
:root {
      --bg: #111111;
      --bg-soft: #151313;
      --panel: #1c1a1a;
      --panel-strong: #241e1f;
      --paper: #f7f2ec;
      --paper-soft: #eee5dc;
      --primary: #8a1f2d;
      --primary-dark: #6f1723;
      --accent: #c38a52;
      --accent-soft: rgba(195, 138, 82, .16);
      --text: #f5efe8;
      --text-muted: #d8ccc2;
      --text-faint: #afa19a;
      --dark-text: #201b1b;
      --dark-muted: #5f5550;
      --line: rgba(255, 255, 255, .10);
      --line-dark: rgba(32, 27, 27, .12);
      --shadow: 0 18px 45px rgba(0, 0, 0, .28);
      --shadow-soft: 0 12px 28px rgba(0, 0, 0, .18);
      --radius: 8px;
      --radius-btn: 6px;
      --container: 1180px;
      --nav-h: 74px;
      --ease: 180ms ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      min-height: 100vh;
      background: var(--bg);
      color: var(--text);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      letter-spacing: 0;
      overflow-x: hidden;
    }

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

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

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

    button {
      border: 0;
      cursor: pointer;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 3px;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--nav-h);
      background: rgba(17, 17, 17, .92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--line);
    }

    .header-inner {
      height: var(--nav-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: max-content;
      color: var(--text);
      font-weight: 700;
      font-size: 18px;
      line-height: 1;
    }

    .brand-mark {
      width: 28px;
      height: 28px;
      border-radius: 6px;
      background:
        linear-gradient(135deg, rgba(195, 138, 82, .95), rgba(138, 31, 45, .95)),
        #8a1f2d;
      box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .18);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 7px;
      border: 2px solid rgba(255, 255, 255, .82);
      border-left-color: transparent;
      border-bottom-color: transparent;
      transform: rotate(45deg);
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      margin-left: auto;
    }

    .nav-links a {
      padding: 9px 13px;
      border-radius: var(--radius-btn);
      color: var(--text-muted);
      font-size: 14px;
      font-weight: 500;
      line-height: 1.2;
    }

    .nav-links a:hover {
      color: var(--text);
      background: rgba(255, 255, 255, .06);
    }

    .nav-links a.active {
      color: #fff;
      background: var(--primary);
    }

    .header-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 0 16px;
      border-radius: var(--radius-btn);
      background: var(--accent);
      color: #1f1712;
      font-weight: 700;
      font-size: 14px;
      box-shadow: 0 10px 22px rgba(195, 138, 82, .18);
    }

    .header-cta:hover {
      transform: translateY(-1px);
      background: #d39a61;
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: var(--radius-btn);
      background: rgba(255, 255, 255, .06);
      border: 1px solid var(--line);
      color: var(--text);
      position: relative;
    }

    .menu-toggle span,
    .menu-toggle::before,
    .menu-toggle::after {
      content: "";
      position: absolute;
      left: 11px;
      right: 11px;
      height: 2px;
      background: currentColor;
      border-radius: 2px;
      transition: transform var(--ease), top var(--ease), opacity var(--ease);
    }

    .menu-toggle span {
      top: 20px;
    }

    .menu-toggle::before {
      top: 13px;
    }

    .menu-toggle::after {
      top: 27px;
    }

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

    .menu-toggle.is-open::before {
      top: 20px;
      transform: rotate(45deg);
    }

    .menu-toggle.is-open::after {
      top: 20px;
      transform: rotate(-45deg);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 0 18px;
      border-radius: var(--radius-btn);
      font-weight: 700;
      line-height: 1.1;
      transition: transform var(--ease), background-color var(--ease), border-color var(--ease), color var(--ease), box-shadow var(--ease);
    }

    .btn-primary {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 14px 30px rgba(138, 31, 45, .25);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-1px);
    }

    .btn-secondary {
      color: var(--text);
      border: 1px solid rgba(195, 138, 82, .58);
      background: rgba(255, 255, 255, .03);
    }

    .btn-secondary:hover {
      color: #fff;
      border-color: var(--accent);
      background: rgba(195, 138, 82, .12);
      transform: translateY(-1px);
    }

    .btn:active {
      transform: translateY(1px);
    }

    .section {
      padding: 84px 0;
    }

    .section-tight {
      padding: 66px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--accent);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0;
      margin-bottom: 14px;
    }

    .eyebrow::before {
      content: "";
      width: 26px;
      height: 1px;
      background: var(--accent);
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 34px;
    }

    .section-head h2 {
      color: var(--text);
      font-size: clamp(28px, 3vw, 34px);
      line-height: 1.22;
      letter-spacing: 0;
      margin-bottom: 12px;
    }

    .section-head p {
      color: var(--text-muted);
      font-size: 16px;
    }

    .hero {
      position: relative;
      min-height: calc(100vh - var(--nav-h) - 36px);
      display: flex;
      align-items: center;
      overflow: hidden;
      background:
        linear-gradient(90deg, rgba(17, 17, 17, .96) 0%, rgba(17, 17, 17, .86) 44%, rgba(17, 17, 17, .62) 100%),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      border-bottom: 1px solid var(--line);
    }

    .hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 120px;
      background: linear-gradient(180deg, rgba(17, 17, 17, 0), var(--bg));
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(320px, .82fr);
      gap: 48px;
      align-items: center;
      padding: 72px 0 86px;
    }

    .hero-copy {
      max-width: 760px;
    }

    .hero h1 {
      font-size: clamp(34px, 5vw, 50px);
      line-height: 1.16;
      letter-spacing: 0;
      margin-bottom: 18px;
      color: var(--text);
    }

    .hero-lead {
      color: var(--text-muted);
      font-size: 17px;
      max-width: 680px;
      margin-bottom: 28px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 30px;
    }

    .update-strip {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 700px;
    }

    .strip-item {
      padding: 15px 16px;
      background: rgba(28, 26, 26, .82);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow-soft);
    }

    .strip-item strong {
      display: block;
      color: var(--text);
      font-size: 18px;
      line-height: 1.2;
      margin-bottom: 4px;
    }

    .strip-item span {
      display: block;
      color: var(--text-faint);
      font-size: 13px;
      line-height: 1.55;
    }

    .hero-panel {
      background: rgba(28, 26, 26, .82);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .hero-panel-media {
      position: relative;
      aspect-ratio: 4 / 3;
      overflow: hidden;
      background: #211c1d;
    }

    .hero-panel-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      filter: saturate(.9) contrast(1.05);
      transition: transform 420ms ease;
    }

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

    .hero-panel-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(17, 17, 17, .08), rgba(17, 17, 17, .48));
    }

    .panel-body {
      padding: 22px;
    }

    .panel-badge {
      display: inline-flex;
      align-items: center;
      min-height: 26px;
      padding: 0 9px;
      border-radius: 5px;
      background: var(--accent-soft);
      color: var(--accent);
      font-size: 12px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .panel-body h2 {
      font-size: 22px;
      line-height: 1.32;
      margin-bottom: 9px;
      color: var(--text);
    }

    .panel-body p {
      color: var(--text-muted);
      font-size: 15px;
    }

    .timeline-wrap {
      display: grid;
      grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
      gap: 34px;
      align-items: start;
    }

    .summary-card {
      position: sticky;
      top: calc(var(--nav-h) + 22px);
      background: var(--panel-strong);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: var(--shadow-soft);
    }

    .summary-card h2 {
      font-size: 26px;
      line-height: 1.25;
      margin-bottom: 12px;
    }

    .summary-card p {
      color: var(--text-muted);
      margin-bottom: 18px;
    }

    .summary-list {
      display: grid;
      gap: 10px;
      list-style: none;
      margin-bottom: 22px;
    }

    .summary-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--text-muted);
      font-size: 15px;
    }

    .summary-list li::before {
      content: "";
      width: 7px;
      height: 7px;
      margin-top: 10px;
      border-radius: 50%;
      background: var(--accent);
      flex: 0 0 auto;
    }

    .timeline {
      position: relative;
      display: grid;
      gap: 18px;
    }

    .timeline::before {
      content: "";
      position: absolute;
      left: 19px;
      top: 8px;
      bottom: 8px;
      width: 1px;
      background: rgba(195, 138, 82, .28);
    }

    .timeline-item {
      position: relative;
      display: grid;
      grid-template-columns: 40px minmax(0, 1fr);
      gap: 18px;
    }

    .time-dot {
      position: relative;
      z-index: 1;
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: var(--primary);
      border: 1px solid rgba(255, 255, 255, .16);
      box-shadow: 0 12px 24px rgba(138, 31, 45, .22);
    }

    .time-dot::after {
      content: "";
      position: absolute;
      inset: 12px;
      border-radius: 50%;
      background: var(--accent);
    }

    .timeline-card {
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 22px;
      transition: transform var(--ease), border-color var(--ease), background-color var(--ease);
    }

    .timeline-card:hover {
      transform: translateY(-2px);
      border-color: rgba(138, 31, 45, .72);
      background: #211d1d;
    }

    .timeline-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 10px;
      color: var(--text-faint);
      font-size: 13px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 24px;
      padding: 0 8px;
      border-radius: 5px;
      background: rgba(138, 31, 45, .18);
      color: #f3c0c7;
      border: 1px solid rgba(138, 31, 45, .32);
      font-size: 12px;
      font-weight: 700;
    }

    .tag-copper {
      background: var(--accent-soft);
      color: var(--accent);
      border-color: rgba(195, 138, 82, .32);
    }

    .timeline-card h3 {
      font-size: 22px;
      line-height: 1.32;
      margin-bottom: 8px;
      color: var(--text);
    }

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

    .paper-section {
      background: var(--paper);
      color: var(--dark-text);
    }

    .paper-section .eyebrow {
      color: var(--primary);
    }

    .paper-section .eyebrow::before {
      background: var(--primary);
    }

    .paper-section .section-head h2,
    .paper-section h2,
    .paper-section h3 {
      color: var(--dark-text);
    }

    .paper-section .section-head p {
      color: var(--dark-muted);
    }

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

    .feature-update {
      position: relative;
      min-height: 430px;
      border-radius: var(--radius);
      overflow: hidden;
      background: #211b1b;
      box-shadow: 0 18px 42px rgba(32, 27, 27, .18);
    }

    .feature-update img {
      width: 100%;
      height: 100%;
      min-height: 430px;
      object-fit: cover;
      transition: transform 420ms ease;
    }

    .feature-update:hover img {
      transform: scale(1.035);
    }

    .feature-update::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(17, 17, 17, .12), rgba(17, 17, 17, .78));
    }

    .feature-content {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      padding: 28px;
      color: var(--text);
      z-index: 1;
    }

    .feature-content p {
      color: var(--text-muted);
      margin-top: 8px;
      max-width: 640px;
    }

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

    .type-card {
      display: grid;
      grid-template-columns: 54px minmax(0, 1fr);
      gap: 15px;
      padding: 18px;
      border: 1px solid var(--line-dark);
      border-radius: var(--radius);
      background: #fffaf5;
      transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
    }

    .type-card:hover {
      transform: translateY(-2px);
      border-color: rgba(138, 31, 45, .35);
      box-shadow: 0 16px 30px rgba(32, 27, 27, .08);
    }

    .type-icon {
      display: grid;
      place-items: center;
      width: 54px;
      height: 54px;
      border-radius: var(--radius);
      background: rgba(138, 31, 45, .1);
      color: var(--primary);
      font-weight: 800;
      font-size: 18px;
    }

    .type-card h3 {
      font-size: 20px;
      line-height: 1.32;
      margin-bottom: 4px;
    }

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

    .notice-layout {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .notice-card {
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 24px;
      min-height: 220px;
      transition: transform var(--ease), border-color var(--ease), background-color var(--ease);
    }

    .notice-card:hover {
      transform: translateY(-2px);
      border-color: rgba(195, 138, 82, .44);
      background: var(--panel-strong);
    }

    .notice-card .num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 32px;
      border-radius: 6px;
      background: var(--accent-soft);
      color: var(--accent);
      font-weight: 800;
      margin-bottom: 18px;
    }

    .notice-card h3 {
      font-size: 21px;
      line-height: 1.3;
      margin-bottom: 9px;
    }

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

    .compare {
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      gap: 24px;
      align-items: center;
    }

    .compare-media {
      border-radius: var(--radius);
      overflow: hidden;
      aspect-ratio: 4 / 3;
      background: #211b1b;
      box-shadow: 0 18px 42px rgba(32, 27, 27, .16);
    }

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

    .check-panel {
      background: #fffaf5;
      border: 1px solid var(--line-dark);
      border-radius: var(--radius);
      padding: 28px;
    }

    .check-list {
      display: grid;
      gap: 13px;
      list-style: none;
      margin-top: 18px;
    }

    .check-list li {
      position: relative;
      padding-left: 26px;
      color: var(--dark-muted);
      font-size: 15px;
    }

    .check-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 8px;
      width: 14px;
      height: 14px;
      border-radius: 4px;
      background: var(--primary);
    }

    .check-list li::after {
      content: "";
      position: absolute;
      left: 4px;
      top: 11px;
      width: 6px;
      height: 3px;
      border-left: 2px solid #fff;
      border-bottom: 2px solid #fff;
      transform: rotate(-45deg);
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 34px;
      align-items: start;
    }

    .faq-intro {
      background: var(--panel-strong);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 26px;
    }

    .faq-intro h2 {
      font-size: 28px;
      line-height: 1.25;
      margin-bottom: 12px;
    }

    .faq-intro p {
      color: var(--text-muted);
    }

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

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

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 20px;
      background: transparent;
      color: var(--text);
      text-align: left;
      font-weight: 700;
      line-height: 1.45;
    }

    .faq-question::after {
      content: "+";
      display: grid;
      place-items: center;
      width: 24px;
      height: 24px;
      border-radius: 5px;
      background: rgba(255, 255, 255, .06);
      color: var(--accent);
      flex: 0 0 auto;
      transition: transform var(--ease), background-color var(--ease);
    }

    .faq-item.is-open .faq-question::after {
      content: "−";
      background: var(--primary);
      color: #fff;
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px;
      color: var(--text-muted);
      font-size: 15px;
    }

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

    .cta-band {
      position: relative;
      overflow: hidden;
      background:
        linear-gradient(90deg, rgba(138, 31, 45, .92), rgba(36, 30, 31, .95)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .cta-inner {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 24px;
      align-items: center;
      padding: 56px 0;
    }

    .cta-inner h2 {
      font-size: clamp(26px, 3vw, 34px);
      line-height: 1.22;
      margin-bottom: 10px;
    }

    .cta-inner p {
      color: var(--text-muted);
      max-width: 720px;
    }

    .site-footer {
      background: #0d0d0d;
      border-top: 1px solid var(--line);
      padding: 54px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .65fr .65fr;
      gap: 42px;
      align-items: start;
      margin-bottom: 34px;
    }

    .footer-text {
      color: var(--text-faint);
      font-size: 14px;
      margin-top: 14px;
      max-width: 520px;
    }

    .footer-title {
      color: var(--text);
      font-weight: 700;
      margin-bottom: 12px;
    }

    .footer-links {
      display: grid;
      gap: 8px;
    }

    .footer-links a {
      color: var(--text-faint);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--accent);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      padding-top: 22px;
      border-top: 1px solid var(--line);
      color: var(--text-faint);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .header-cta {
        display: none;
      }

      .hero-grid,
      .timeline-wrap,
      .update-grid,
      .compare,
      .faq-wrap {
        grid-template-columns: 1fr;
      }

      .summary-card {
        position: static;
      }

      .notice-layout {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .hero {
        min-height: auto;
      }

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

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

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

      .menu-toggle {
        display: block;
      }

      .nav-links {
        position: fixed;
        left: 14px;
        right: 14px;
        top: calc(var(--nav-h) + 8px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: rgba(17, 17, 17, .98);
        box-shadow: var(--shadow);
      }

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

      .nav-links a {
        padding: 13px 14px;
      }

      .hero-grid {
        gap: 28px;
        padding: 54px 0 66px;
      }

      .hero-lead {
        font-size: 16px;
      }

      .update-strip,
      .notice-layout,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 58px 0;
      }

      .section-tight {
        padding: 48px 0;
      }

      .feature-update,
      .feature-update img {
        min-height: 360px;
      }

      .cta-inner {
        grid-template-columns: 1fr;
        padding: 44px 0;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      .brand {
        font-size: 16px;
      }

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

      .btn {
        width: 100%;
      }

      .timeline-item {
        grid-template-columns: 30px minmax(0, 1fr);
        gap: 12px;
      }

      .timeline::before {
        left: 14px;
      }

      .time-dot {
        width: 30px;
        height: 30px;
        border-radius: 6px;
      }

      .time-dot::after {
        inset: 9px;
      }

      .timeline-card,
      .summary-card,
      .notice-card,
      .check-panel,
      .faq-intro {
        padding: 20px;
      }

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

      .feature-content {
        padding: 22px;
      }
    }

/* roulang page: category2 */
:root {
      --bg: #111111;
      --bg-2: #151313;
      --panel: #1c1a1a;
      --panel-2: #241e1f;
      --paper: #f7f2ec;
      --text: #f5efe8;
      --text-2: #d8ccc2;
      --text-3: #afa19a;
      --dark-text: #201b1b;
      --muted: #5f5550;
      --accent: #8a1f2d;
      --accent-2: #c38a52;
      --line: rgba(255, 255, 255, 0.10);
      --line-dark: rgba(32, 27, 27, 0.12);
      --shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
      --shadow-soft: 0 8px 20px rgba(0, 0, 0, 0.14);
      --radius: 8px;
      --radius-sm: 6px;
      --container: 1180px;
      --transition: 180ms ease;
    }

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

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

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      background:
        radial-gradient(1200px 500px at 20% -10%, rgba(138, 31, 45, 0.18), transparent 55%),
        radial-gradient(900px 420px at 90% 0%, rgba(195, 138, 82, 0.12), transparent 52%),
        linear-gradient(180deg, #131111 0%, #111111 35%, #171414 100%);
      color: var(--text);
      line-height: 1.65;
      letter-spacing: 0;
      min-height: 100vh;
    }

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

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

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

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

    :focus-visible {
      outline: 2px solid var(--accent-2);
      outline-offset: 2px;
    }

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

    .container {
      width: min(calc(100% - 32px), var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      backdrop-filter: blur(10px);
      background: rgba(17, 17, 17, 0.93);
      border-bottom: 1px solid var(--line);
    }

    .header-inner {
      display: flex;
      align-items: center;
      gap: 16px;
      min-height: 72px;
      position: relative;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: var(--text);
      font-weight: 700;
      letter-spacing: 0;
      white-space: nowrap;
      flex: 0 0 auto;
    }

    .brand-mark {
      width: 16px;
      height: 16px;
      border-radius: 4px;
      background:
        linear-gradient(135deg, var(--accent) 0%, #5b101b 55%, var(--accent-2) 100%);
      box-shadow: 0 0 0 1px rgba(255,255,255,0.12) inset;
      position: relative;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 3px;
      border-radius: 2px;
      border: 1px solid rgba(255, 255, 255, 0.34);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-left: 12px;
      flex: 1 1 auto;
      min-width: 0;
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 0 14px;
      border-radius: 6px;
      border: 1px solid transparent;
      color: var(--text-2);
      background: transparent;
      transition: transform var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition);
      white-space: nowrap;
    }

    .nav-links a:hover,
    .nav-links a:focus-visible {
      color: var(--text);
      border-color: rgba(195, 138, 82, 0.35);
      background: rgba(195, 138, 82, 0.08);
      transform: translateY(-1px);
    }

    .nav-links a.active {
      color: #fff;
      background: rgba(138, 31, 45, 0.94);
      border-color: rgba(138, 31, 45, 0.95);
      box-shadow: 0 8px 18px rgba(138, 31, 45, 0.18);
    }

    .header-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 0 16px;
      border-radius: 6px;
      background: var(--accent);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.06);
      box-shadow: 0 10px 20px rgba(138, 31, 45, 0.22);
      transition: transform var(--transition), background-color var(--transition), box-shadow var(--transition);
      white-space: nowrap;
      flex: 0 0 auto;
    }

    .header-cta:hover,
    .header-cta:focus-visible {
      background: #9a2434;
      transform: translateY(-1px);
      box-shadow: 0 14px 24px rgba(138, 31, 45, 0.24);
    }

    .menu-toggle {
      display: none;
      margin-left: auto;
      width: 42px;
      height: 42px;
      border-radius: 6px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, 0.03);
      align-items: center;
      justify-content: center;
      gap: 4px;
      flex-direction: column;
      transition: background-color var(--transition), border-color var(--transition);
    }

    .menu-toggle span {
      width: 16px;
      height: 2px;
      background: var(--text);
      border-radius: 999px;
    }

    .menu-toggle:hover,
    .menu-toggle:focus-visible {
      background: rgba(195, 138, 82, 0.10);
      border-color: rgba(195, 138, 82, 0.34);
    }

    .hero {
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--line);
      background:
        linear-gradient(180deg, rgba(17, 17, 17, 0.24) 0%, rgba(17, 17, 17, 0.88) 100%),
        url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(17, 17, 17, 0.90) 0%, rgba(17, 17, 17, 0.68) 42%, rgba(17, 17, 17, 0.44) 100%);
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      padding: 72px 0 56px;
      display: grid;
      grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
      gap: 36px;
      align-items: end;
    }

    .crumbs {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 14px;
      color: rgba(245, 239, 232, 0.68);
      margin-bottom: 18px;
    }

    .crumbs a {
      color: rgba(245, 239, 232, 0.78);
      transition: color var(--transition);
    }

    .crumbs a:hover,
    .crumbs a:focus-visible {
      color: #fff;
    }

    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 28px;
      padding: 0 12px;
      border-radius: 999px;
      border: 1px solid rgba(195, 138, 82, 0.28);
      background: rgba(195, 138, 82, 0.08);
      color: #f1dcc7;
      font-size: 13px;
      margin-bottom: 18px;
    }

    .hero h1 {
      margin: 0;
      font-size: clamp(32px, 4vw, 50px);
      line-height: 1.12;
      letter-spacing: 0;
      max-width: 12em;
    }

    .hero-summary {
      margin: 18px 0 0;
      max-width: 36rem;
      font-size: 17px;
      color: var(--text-2);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 0 18px;
      border-radius: 6px;
      border: 1px solid transparent;
      transition: transform var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 10px 22px rgba(138, 31, 45, 0.20);
    }

    .btn-primary:hover,
    .btn-primary:focus-visible {
      background: #9b2434;
      transform: translateY(-1px);
      box-shadow: 0 14px 24px rgba(138, 31, 45, 0.24);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.02);
      border-color: rgba(195, 138, 82, 0.36);
      color: var(--text);
    }

    .btn-secondary:hover,
    .btn-secondary:focus-visible {
      background: rgba(195, 138, 82, 0.10);
      transform: translateY(-1px);
      border-color: rgba(195, 138, 82, 0.52);
    }

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 32px;
      padding: 0 12px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.12);
      background: rgba(255, 255, 255, 0.04);
      color: var(--text-2);
      font-size: 13px;
    }

    .hero-side {
      align-self: stretch;
      display: grid;
      gap: 14px;
    }

    .hero-figure {
      margin: 0;
      background: rgba(17, 17, 17, 0.22);
      border: 1px solid rgba(255, 255, 255, 0.10);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .hero-figure .media {
      aspect-ratio: 4 / 3;
      width: 100%;
      object-fit: cover;
      filter: saturate(0.86) contrast(1.04);
    }

    .hero-figure figcaption {
      padding: 14px 16px 16px;
      background: rgba(17, 17, 17, 0.72);
      color: var(--text-2);
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .hero-panel {
      display: grid;
      gap: 10px;
      padding: 16px;
      border-radius: var(--radius);
      background: rgba(36, 30, 31, 0.72);
      border: 1px solid rgba(255, 255, 255, 0.09);
      box-shadow: var(--shadow-soft);
    }

    .panel-title {
      color: var(--text);
      font-weight: 700;
      font-size: 15px;
    }

    .panel-list {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .panel-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--text-2);
      font-size: 14px;
    }

    .panel-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent-2);
      box-shadow: 0 0 0 4px rgba(195, 138, 82, 0.12);
      margin-top: 6px;
      flex: 0 0 auto;
    }

    .section {
      padding: 84px 0;
    }

    .section + .section {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .section-head {
      display: grid;
      gap: 10px;
      margin-bottom: 28px;
    }

    .eyebrow {
      color: var(--accent-2);
      font-size: 13px;
      letter-spacing: 0;
      text-transform: none;
    }

    .section h2 {
      margin: 0;
      font-size: clamp(28px, 3vw, 34px);
      line-height: 1.18;
      letter-spacing: 0;
    }

    .section-lead {
      margin: 0;
      color: var(--text-2);
      font-size: 16px;
      max-width: 62rem;
    }

    .grid-steps {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
    }

    .step-card {
      position: relative;
      padding: 20px 20px 22px;
      border-radius: var(--radius);
      background: linear-gradient(180deg, rgba(36, 30, 31, 0.98), rgba(28, 26, 26, 0.96));
      border: 1px solid rgba(255, 255, 255, 0.09);
      box-shadow: var(--shadow-soft);
      transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
      min-height: 100%;
    }

    .step-card:hover {
      transform: translateY(-1px);
      border-color: rgba(138, 31, 45, 0.42);
      box-shadow: 0 14px 26px rgba(0, 0, 0, 0.20);
    }

    .step-index {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 34px;
      height: 34px;
      padding: 0 10px;
      border-radius: 6px;
      background: rgba(138, 31, 45, 0.95);
      color: #fff;
      font-weight: 700;
      font-size: 14px;
      box-shadow: 0 10px 20px rgba(138, 31, 45, 0.16);
    }

    .step-card h3 {
      margin: 16px 0 10px;
      font-size: 21px;
      line-height: 1.25;
      letter-spacing: 0;
    }

    .step-card p {
      margin: 0;
      color: var(--text-2);
      font-size: 15px;
    }

    .step-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }

    .mini-tag {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 0 10px;
      border-radius: 6px;
      background: rgba(195, 138, 82, 0.10);
      border: 1px solid rgba(195, 138, 82, 0.20);
      color: #f2dcc8;
      font-size: 12px;
    }

    .split-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(340px, 0.92fr);
      gap: 24px;
      align-items: start;
    }

    .info-box {
      padding: 24px;
      border-radius: var(--radius);
      background: var(--paper);
      color: var(--dark-text);
      border: 1px solid rgba(32, 27, 27, 0.08);
      box-shadow: var(--shadow-soft);
    }

    .info-box h3 {
      margin: 0 0 12px;
      font-size: 24px;
      line-height: 1.2;
      letter-spacing: 0;
    }

    .info-box p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .check-list {
      list-style: none;
      margin: 18px 0 0;
      padding: 0;
      display: grid;
      gap: 12px;
    }

    .check-list li {
      position: relative;
      padding-left: 22px;
      color: var(--dark-text);
      font-size: 15px;
      line-height: 1.7;
    }

    .check-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 9px;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 4px rgba(138, 31, 45, 0.10);
    }

    .media-card {
      background: rgba(28, 26, 26, 0.92);
      border: 1px solid rgba(255, 255, 255, 0.10);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .media-card .media {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
      filter: saturate(0.9) contrast(1.02);
    }

    .media-card .media-copy {
      padding: 16px 18px 18px;
      background: rgba(20, 18, 18, 0.84);
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .media-card .media-copy strong {
      display: block;
      font-size: 18px;
      margin-bottom: 8px;
      color: #fff;
    }

    .media-card .media-copy p {
      margin: 0;
      color: var(--text-2);
      font-size: 14px;
    }

    .note-grid {
      display: grid;
      gap: 12px;
      margin-top: 14px;
    }

    .note-item {
      padding: 16px 16px 17px;
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--line);
    }

    .note-item strong {
      display: block;
      margin-bottom: 6px;
      color: var(--text);
      font-size: 16px;
    }

    .note-item span {
      color: var(--text-2);
      font-size: 14px;
    }

    .issue-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }

    .issue-card {
      padding: 18px;
      border-radius: var(--radius);
      background: rgba(28, 26, 26, 0.94);
      border: 1px solid rgba(255, 255, 255, 0.09);
      transition: transform var(--transition), border-color var(--transition), background-color var(--transition);
      min-height: 100%;
    }

    .issue-card:hover {
      transform: translateY(-1px);
      border-color: rgba(195, 138, 82, 0.34);
      background: rgba(36, 30, 31, 0.96);
    }

    .issue-card h3 {
      margin: 0 0 10px;
      font-size: 18px;
      line-height: 1.28;
    }

    .issue-card p {
      margin: 0;
      color: var(--text-2);
      font-size: 14px;
      line-height: 1.72;
    }

    .issue-card ul {
      margin: 14px 0 0;
      padding-left: 18px;
      color: var(--text-3);
      font-size: 14px;
    }

    .issue-card li + li {
      margin-top: 6px;
    }

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

    details.faq {
      border-radius: var(--radius);
      background: rgba(28, 26, 26, 0.95);
      border: 1px solid rgba(255, 255, 255, 0.09);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }

    details.faq[open] {
      border-color: rgba(138, 31, 45, 0.34);
    }

    details.faq summary {
      list-style: none;
      cursor: pointer;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: var(--text);
      font-weight: 700;
      font-size: 16px;
    }

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

    .faq-marker {
      width: 28px;
      height: 28px;
      border-radius: 6px;
      border: 1px solid rgba(195, 138, 82, 0.26);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-2);
      flex: 0 0 auto;
      transition: transform var(--transition), border-color var(--transition), background-color var(--transition);
      background: rgba(195, 138, 82, 0.06);
    }

    details.faq[open] .faq-marker {
      transform: rotate(45deg);
      border-color: rgba(138, 31, 45, 0.42);
      background: rgba(138, 31, 45, 0.12);
      color: #fff;
    }

    .faq-body {
      padding: 0 20px 18px;
      color: var(--text-2);
      font-size: 15px;
      line-height: 1.8;
    }

    .faq-body p {
      margin: 0;
    }

    .cta-band {
      margin: 24px 0 0;
      padding: 28px;
      border-radius: var(--radius);
      background: linear-gradient(180deg, #f8f4ee 0%, #f4ece5 100%);
      color: var(--dark-text);
      border: 1px solid rgba(32, 27, 27, 0.08);
      box-shadow: var(--shadow-soft);
      display: grid;
      gap: 18px;
      align-items: center;
      grid-template-columns: minmax(0, 1fr) auto;
    }

    .cta-band h2 {
      margin: 0 0 10px;
      font-size: clamp(24px, 2.6vw, 32px);
      line-height: 1.18;
    }

    .cta-band p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
      max-width: 60rem;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: flex-end;
    }

    .btn-light {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 12px 22px rgba(138, 31, 45, 0.18);
    }

    .btn-light:hover,
    .btn-light:focus-visible {
      background: #9b2434;
      transform: translateY(-1px);
    }

    .btn-ghost {
      border: 1px solid rgba(32, 27, 27, 0.16);
      background: rgba(255, 255, 255, 0.55);
      color: var(--dark-text);
    }

    .btn-ghost:hover,
    .btn-ghost:focus-visible {
      border-color: rgba(195, 138, 82, 0.50);
      background: rgba(255, 255, 255, 0.82);
      transform: translateY(-1px);
    }

    .site-footer {
      margin-top: 0;
      padding: 46px 0 18px;
      background: #111111;
      border-top: 1px solid var(--line);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr 0.8fr;
      gap: 24px;
      padding-bottom: 28px;
    }

    .footer-text {
      margin: 16px 0 0;
      color: var(--text-2);
      max-width: 34rem;
      font-size: 15px;
      line-height: 1.8;
    }

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

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

    .footer-links a {
      color: var(--text-2);
      width: fit-content;
      transition: color var(--transition), transform var(--transition);
    }

    .footer-links a:hover,
    .footer-links a:focus-visible {
      color: #fff;
      transform: translateX(1px);
    }

    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 10px 18px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      color: var(--text-3);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .hero-inner {
        grid-template-columns: 1fr;
        padding: 60px 0 46px;
      }

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

      .issue-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

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

      .footer-grid > :first-child {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        min-height: 68px;
        align-items: center;
      }

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

      .nav-links {
        display: none;
        order: 4;
        margin: 0;
        width: 100%;
        padding: 14px 0 2px;
        flex-wrap: wrap;
        gap: 8px;
      }

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

      .header-cta {
        margin-left: auto;
      }

      .hero-inner {
        padding: 48px 0 40px;
      }

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

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

      .cta-band {
        grid-template-columns: 1fr;
      }

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

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

      .site-footer {
        padding-top: 40px;
      }
    }

    @media (max-width: 520px) {
      .container {
        width: min(calc(100% - 24px), var(--container));
      }

      .header-cta {
        padding: 0 12px;
        min-height: 38px;
      }

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

      .hero h1 {
        max-width: 100%;
        font-size: 32px;
      }

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

      .section {
        padding: 54px 0;
      }

      .section h2 {
        font-size: 28px;
      }

      .step-card,
      .issue-card,
      .info-box,
      .cta-band {
        padding-left: 16px;
        padding-right: 16px;
      }

      details.faq summary {
        padding: 16px;
        font-size: 15px;
      }

      .faq-body {
        padding: 0 16px 16px;
      }
    }

/* roulang page: category4 */
:root {
      --bg: #111111;
      --bg-soft: #151313;
      --panel: #1c1a1a;
      --panel-strong: #241e1f;
      --paper: #f7f2ec;
      --paper-soft: #eee5dc;
      --text: #f5efe8;
      --text-muted: #d8ccc2;
      --text-faint: #afa19a;
      --ink: #201b1b;
      --ink-muted: #5f5550;
      --primary: #8a1f2d;
      --primary-dark: #6f1723;
      --accent: #c38a52;
      --accent-soft: rgba(195, 138, 82, .14);
      --border: rgba(255, 255, 255, .1);
      --border-dark: rgba(32, 27, 27, .12);
      --shadow: 0 18px 45px rgba(0, 0, 0, .28);
      --shadow-soft: 0 10px 26px rgba(0, 0, 0, .18);
      --radius: 8px;
      --radius-sm: 6px;
      --container: 1180px;
      --header-h: 76px;
    }

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

    html {
      scroll-behavior: smooth;
      background: var(--bg);
    }

    body {
      min-height: 100vh;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 15% 8%, rgba(138, 31, 45, .2), transparent 32%),
        linear-gradient(180deg, #151313 0%, #111111 44%, #171313 100%);
      line-height: 1.75;
      letter-spacing: 0;
      overflow-x: hidden;
    }

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

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

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

    button {
      border: 0;
      cursor: pointer;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 3px;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      min-height: var(--header-h);
      background: rgba(17, 17, 17, .88);
      border-bottom: 1px solid var(--border);
      backdrop-filter: blur(18px);
    }

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

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: fit-content;
      color: var(--text);
      font-weight: 800;
      font-size: 20px;
      line-height: 1.2;
    }

    .brand-mark {
      width: 30px;
      height: 30px;
      border-radius: 7px;
      background:
        linear-gradient(135deg, var(--primary), #421018),
        linear-gradient(90deg, transparent 0 40%, rgba(255,255,255,.28) 40% 45%, transparent 45%);
      position: relative;
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.16), 0 8px 18px rgba(138,31,45,.28);
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 8px;
      border: 1px solid rgba(247,242,236,.76);
      border-radius: 4px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 4px;
      padding: 6px;
      background: rgba(255,255,255,.035);
      border: 1px solid var(--border);
      border-radius: var(--radius);
    }

    .nav-links a {
      color: var(--text-muted);
      font-size: 14px;
      font-weight: 600;
      padding: 9px 13px;
      border-radius: var(--radius-sm);
      white-space: nowrap;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text);
      background: var(--primary);
    }

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

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: var(--radius-sm);
      background: rgba(255,255,255,.06);
      border: 1px solid var(--border);
      color: var(--text);
      position: relative;
    }

    .menu-toggle span,
    .menu-toggle::before,
    .menu-toggle::after {
      content: "";
      position: absolute;
      left: 11px;
      right: 11px;
      height: 2px;
      background: currentColor;
      border-radius: 2px;
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }

    .menu-toggle span {
      top: 20px;
    }

    .menu-toggle::before {
      top: 14px;
    }

    .menu-toggle::after {
      top: 26px;
    }

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

    .menu-toggle.is-open::before {
      top: 20px;
      transform: rotate(45deg);
    }

    .menu-toggle.is-open::after {
      top: 20px;
      transform: rotate(-45deg);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 42px;
      padding: 10px 18px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 15px;
      border: 1px solid transparent;
      transition: background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease, color .2s ease;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary);
      color: var(--text);
      box-shadow: 0 12px 22px rgba(138,31,45,.24);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 16px 30px rgba(138,31,45,.3);
    }

    .btn-secondary {
      background: transparent;
      color: var(--text);
      border-color: rgba(195,138,82,.45);
    }

    .btn-secondary:hover {
      border-color: var(--accent);
      color: var(--accent);
      transform: translateY(-1px);
    }

    .btn:active {
      transform: translateY(1px);
      box-shadow: none;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      width: fit-content;
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      background: var(--accent-soft);
      color: #e6b67e;
      border: 1px solid rgba(195,138,82,.28);
      font-size: 13px;
      font-weight: 700;
      line-height: 1.2;
    }

    .badge::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
    }

    .hero {
      position: relative;
      padding: 84px 0 76px;
      isolation: isolate;
      overflow: hidden;
      border-bottom: 1px solid var(--border);
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(17,17,17,.94) 0%, rgba(17,17,17,.76) 50%, rgba(17,17,17,.5) 100%),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      z-index: -2;
    }

    .hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 120px;
      background: linear-gradient(180deg, transparent, var(--bg));
      z-index: -1;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.02fr) minmax(320px, .78fr);
      gap: 48px;
      align-items: center;
    }

    .hero-content {
      max-width: 760px;
    }

    .eyebrow {
      color: var(--accent);
      font-size: 14px;
      font-weight: 800;
      margin-bottom: 18px;
    }

    h1 {
      font-size: clamp(34px, 5vw, 50px);
      line-height: 1.14;
      font-weight: 800;
      margin-bottom: 20px;
      letter-spacing: 0;
    }

    .hero-lead {
      color: var(--text-muted);
      font-size: 17px;
      max-width: 700px;
      margin-bottom: 28px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 30px;
    }

    .hero-notes {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 780px;
    }

    .note {
      min-height: 92px;
      padding: 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(28,26,26,.72);
      box-shadow: var(--shadow-soft);
    }

    .note strong {
      display: block;
      font-size: 21px;
      color: var(--text);
      line-height: 1.25;
      margin-bottom: 6px;
    }

    .note span {
      display: block;
      color: var(--text-faint);
      font-size: 13px;
      line-height: 1.55;
    }

    .hero-panel {
      border: 1px solid rgba(255,255,255,.14);
      border-radius: var(--radius);
      background: rgba(28,26,26,.76);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .hero-image {
      aspect-ratio: 4 / 3;
      position: relative;
      overflow: hidden;
    }

    .hero-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      filter: saturate(.9) contrast(1.02);
      transition: transform .35s ease;
    }

    .hero-panel:hover img {
      transform: scale(1.035);
    }

    .hero-panel-body {
      padding: 22px;
      display: grid;
      gap: 14px;
    }

    .check-row {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      color: var(--text-muted);
      font-size: 14px;
    }

    .check-row i {
      width: 20px;
      height: 20px;
      flex: 0 0 auto;
      border-radius: 50%;
      background: rgba(195,138,82,.14);
      border: 1px solid rgba(195,138,82,.4);
      position: relative;
      margin-top: 2px;
    }

    .check-row i::after {
      content: "";
      position: absolute;
      width: 8px;
      height: 4px;
      border-left: 2px solid var(--accent);
      border-bottom: 2px solid var(--accent);
      transform: rotate(-45deg);
      left: 5px;
      top: 6px;
    }

    main {
      background: var(--bg);
    }

    .section {
      padding: 86px 0;
      position: relative;
    }

    .section-alt {
      background: var(--paper);
      color: var(--ink);
    }

    .section-tight {
      padding-top: 66px;
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 34px;
    }

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

    .section-kicker {
      color: var(--accent);
      font-size: 14px;
      font-weight: 800;
      margin-bottom: 10px;
    }

    h2 {
      font-size: clamp(28px, 3vw, 34px);
      line-height: 1.22;
      font-weight: 800;
      margin-bottom: 14px;
      letter-spacing: 0;
    }

    h3 {
      font-size: 21px;
      line-height: 1.35;
      font-weight: 800;
      letter-spacing: 0;
    }

    .section-desc {
      color: var(--text-muted);
      font-size: 16px;
      max-width: 740px;
    }

    .section-alt .section-desc {
      color: var(--ink-muted);
    }

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

    .feature-card {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--panel);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .feature-card:hover {
      transform: translateY(-3px);
      border-color: rgba(138,31,45,.72);
      box-shadow: var(--shadow);
    }

    .feature-image {
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #221f1f;
    }

    .feature-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .35s ease;
    }

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

    .feature-body {
      padding: 24px;
    }

    .feature-body h3 {
      margin: 14px 0 10px;
    }

    .feature-body p {
      color: var(--text-muted);
      font-size: 15px;
    }

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

    .risk-item {
      padding: 20px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: linear-gradient(180deg, rgba(36,30,31,.94), rgba(28,26,26,.94));
      display: grid;
      grid-template-columns: 42px 1fr;
      gap: 14px;
      align-items: start;
    }

    .risk-icon {
      width: 42px;
      height: 42px;
      border-radius: var(--radius-sm);
      background: rgba(138,31,45,.22);
      border: 1px solid rgba(138,31,45,.45);
      color: var(--accent);
      display: grid;
      place-items: center;
      font-weight: 900;
    }

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

    .risk-item p {
      color: var(--text-muted);
      font-size: 14px;
    }

    .privacy-layout {
      display: grid;
      grid-template-columns: .85fr 1.15fr;
      gap: 32px;
      align-items: start;
    }

    .privacy-panel {
      position: sticky;
      top: 104px;
      padding: 28px;
      border-radius: var(--radius);
      background: var(--ink);
      color: var(--text);
      box-shadow: 0 16px 36px rgba(32,27,27,.18);
    }

    .privacy-panel p {
      color: var(--text-muted);
      margin-top: 12px;
      font-size: 15px;
    }

    .privacy-panel .btn {
      margin-top: 20px;
    }

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

    .setting-row {
      display: grid;
      grid-template-columns: 54px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border-radius: var(--radius);
      background: #fffaf4;
      border: 1px solid var(--border-dark);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .setting-row:hover {
      transform: translateX(4px);
      border-color: rgba(195,138,82,.5);
      box-shadow: 0 12px 24px rgba(32,27,27,.08);
    }

    .setting-num {
      width: 54px;
      height: 54px;
      border-radius: var(--radius-sm);
      background: var(--accent-soft);
      color: var(--primary);
      display: grid;
      place-items: center;
      font-weight: 900;
    }

    .setting-row h3 {
      color: var(--ink);
      font-size: 19px;
      margin-bottom: 5px;
    }

    .setting-row p {
      color: var(--ink-muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .setting-tag {
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
      border: 1px solid rgba(138,31,45,.2);
      padding: 6px 9px;
      border-radius: var(--radius-sm);
      background: rgba(138,31,45,.06);
      white-space: nowrap;
    }

    .compare-wrap {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .compare-card {
      padding: 24px;
      min-height: 100%;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--panel);
      transition: transform .2s ease, border-color .2s ease;
    }

    .compare-card:hover {
      transform: translateY(-3px);
      border-color: rgba(195,138,82,.5);
    }

    .compare-card h3 {
      margin: 12px 0 12px;
    }

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

    .mini-icon {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background: rgba(195,138,82,.12);
      border: 1px solid rgba(195,138,82,.32);
      color: var(--accent);
      display: grid;
      place-items: center;
      font-size: 20px;
      font-weight: 900;
    }

    .checklist {
      display: grid;
      grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
      gap: 30px;
      align-items: center;
    }

    .checklist-visual {
      position: relative;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
    }

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

    .checklist-visual::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(17,17,17,.06), rgba(17,17,17,.58));
    }

    .checklist-box {
      display: grid;
      gap: 12px;
    }

    .checkline {
      display: flex;
      gap: 12px;
      padding: 16px 18px;
      border-radius: var(--radius);
      background: rgba(255,255,255,.045);
      border: 1px solid var(--border);
      color: var(--text-muted);
    }

    .checkline strong {
      color: var(--text);
      display: block;
      margin-bottom: 2px;
    }

    .check-dot {
      width: 22px;
      height: 22px;
      flex: 0 0 auto;
      border-radius: 50%;
      background: var(--primary);
      margin-top: 2px;
      position: relative;
    }

    .check-dot::after {
      content: "";
      position: absolute;
      width: 8px;
      height: 4px;
      border-left: 2px solid var(--text);
      border-bottom: 2px solid var(--text);
      left: 6px;
      top: 7px;
      transform: rotate(-45deg);
    }

    .notice-band {
      background: linear-gradient(135deg, #241e1f, #171313);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

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

    .notice-card {
      padding: 24px;
      border-radius: var(--radius);
      background: rgba(255,255,255,.045);
      border: 1px solid var(--border);
    }

    .notice-card h3 {
      margin-bottom: 8px;
    }

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

    .faq-list {
      max-width: 880px;
      margin: 0 auto;
      display: grid;
      gap: 12px;
    }

    .faq-item {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--panel);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 22px;
      background: transparent;
      color: var(--text);
      text-align: left;
      font-weight: 800;
      border-radius: 0;
    }

    .faq-question:hover {
      color: var(--accent);
      background: rgba(255,255,255,.025);
    }

    .faq-question span {
      min-width: 24px;
      height: 24px;
      border: 1px solid rgba(195,138,82,.45);
      color: var(--accent);
      display: grid;
      place-items: center;
      border-radius: var(--radius-sm);
      transition: transform .2s ease;
      flex: 0 0 auto;
    }

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

    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      color: var(--text-muted);
      font-size: 15px;
      border-top: 1px solid rgba(255,255,255,.06);
    }

    .faq-item.is-open .faq-answer {
      display: block;
      padding-top: 16px;
    }

    .cta {
      padding: 72px 0;
      background:
        linear-gradient(90deg, rgba(138,31,45,.9), rgba(36,30,31,.94)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      border-top: 1px solid rgba(255,255,255,.12);
    }

    .cta-box {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
    }

    .cta h2 {
      margin-bottom: 8px;
    }

    .cta p {
      color: rgba(245,239,232,.82);
      max-width: 720px;
    }

    .site-footer {
      padding: 56px 0 24px;
      background: #0d0d0d;
      border-top: 1px solid var(--border);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .8fr .8fr;
      gap: 34px;
      padding-bottom: 34px;
    }

    .footer-text {
      margin-top: 16px;
      color: var(--text-faint);
      font-size: 14px;
      max-width: 520px;
    }

    .footer-title {
      color: var(--text);
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 14px;
    }

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

    .footer-links a {
      color: var(--text-faint);
      font-size: 14px;
      width: fit-content;
      border-bottom: 1px solid transparent;
    }

    .footer-links a:hover {
      color: var(--accent);
      border-bottom-color: var(--accent);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      padding-top: 20px;
      border-top: 1px solid var(--border);
      color: #8f8580;
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .header-inner {
        gap: 14px;
      }

      .nav-links a {
        padding: 9px 10px;
        font-size: 13px;
      }

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

      .hero-grid,
      .safety-grid,
      .privacy-layout,
      .checklist {
        grid-template-columns: 1fr;
      }

      .privacy-panel {
        position: static;
      }

      .hero-notes,
      .compare-wrap {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .cta-box {
        grid-template-columns: 1fr;
      }
    }

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

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

      .site-header {
        background: rgba(17,17,17,.95);
      }

      .brand {
        font-size: 18px;
      }

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

      .nav-links {
        position: absolute;
        left: 14px;
        right: 14px;
        top: calc(var(--header-h) + 8px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 10px;
        border-radius: var(--radius);
        background: rgba(17,17,17,.98);
        box-shadow: var(--shadow);
      }

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

      .nav-links a {
        padding: 13px 14px;
        font-size: 15px;
      }

      .hero {
        padding: 56px 0 58px;
      }

      .hero-grid {
        gap: 30px;
      }

      .hero-notes,
      .compare-wrap,
      .notice-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 58px 0;
      }

      .section-tight {
        padding-top: 48px;
      }

      .setting-row {
        grid-template-columns: 48px 1fr;
      }

      .setting-tag {
        grid-column: 2;
        width: fit-content;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      body {
        line-height: 1.7;
      }

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

      .btn {
        width: 100%;
        min-height: 44px;
      }

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

      .note {
        min-height: auto;
      }

      .feature-body,
      .privacy-panel,
      .compare-card,
      .notice-card {
        padding: 20px;
      }

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

      .risk-icon {
        width: 38px;
        height: 38px;
      }

      .faq-question {
        padding: 18px;
      }

      .faq-answer {
        padding-left: 18px;
        padding-right: 18px;
      }
    }