/* roulang page: index */
:root {
      --bg: #11120f;
      --bg-soft: #171914;
      --panel: #1f211b;
      --panel-2: #26291f;
      --text: #f5f1e8;
      --muted: #b8b2a5;
      --weak: #827b6d;
      --gold: #d9aa4a;
      --gold-2: #f0c86b;
      --cyan: #39d7c4;
      --green: #78e08f;
      --red: #ff756b;
      --border: rgba(245, 241, 232, .12);
      --border-strong: rgba(217, 170, 74, .42);
      --shadow: 0 18px 46px rgba(0, 0, 0, .34);
      --shadow-soft: 0 10px 26px rgba(0, 0, 0, .22);
      --radius: 8px;
      --radius-lg: 14px;
      --container: 1180px;
      --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      min-height: 100vh;
      font-family: var(--font);
      color: var(--text);
      line-height: 1.75;
      background:
        radial-gradient(circle at 18% 0%, rgba(217, 170, 74, .14), transparent 34%),
        linear-gradient(135deg, #11120f 0%, #171914 48%, #0e1614 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      opacity: .18;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
      background-size: 28px 28px;
      mask-image: linear-gradient(to bottom, #000, transparent 78%);
      z-index: -1;
    }

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

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

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid var(--border);
      background: rgba(17, 18, 15, .86);
      backdrop-filter: blur(16px);
    }

    .nav-wrap {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 900;
      letter-spacing: 0;
    }

    .brand-mark {
      width: 40px;
      height: 40px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border: 1px solid var(--border-strong);
      border-radius: var(--radius);
      color: #15120a;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      box-shadow: 0 0 0 4px rgba(217, 170, 74, .09);
    }

    .brand-text {
      display: grid;
      line-height: 1.25;
      min-width: 0;
    }

    .brand-text strong {
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
      font-size: 15px;
    }

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

    .nav-toggle {
      display: none;
    }

    .nav-button {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.04);
      align-items: center;
      justify-content: center;
    }

    .nav-button span,
    .nav-button span::before,
    .nav-button span::after {
      content: "";
      display: block;
      width: 20px;
      height: 2px;
      border-radius: 999px;
      background: var(--text);
      transition: .2s ease;
    }

    .nav-button span::before {
      transform: translateY(-7px);
    }

    .nav-button span::after {
      transform: translateY(5px);
    }

    .main-nav {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 6px;
    }

    .main-nav a {
      position: relative;
      padding: 10px 13px;
      border-radius: var(--radius);
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      transition: color .2s ease, background .2s ease, transform .2s ease;
    }

    .main-nav a:hover,
    .main-nav a:focus-visible {
      color: var(--text);
      background: rgba(255,255,255,.06);
      transform: translateY(-1px);
      outline: none;
    }

    .main-nav a.active {
      color: #17120a;
      background: var(--gold);
    }

    .hero {
      padding: 46px 0 34px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.1fr) minmax(340px, .72fr);
      gap: 28px;
      align-items: stretch;
    }

    .hero-copy {
      min-height: 520px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 44px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(125deg, rgba(217,170,74,.16), rgba(57,215,196,.06) 42%, rgba(255,255,255,.03)),
        linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.015));
      box-shadow: var(--shadow);
      overflow: hidden;
      position: relative;
    }

    .hero-copy::after {
      content: "";
      position: absolute;
      right: -80px;
      bottom: -80px;
      width: 260px;
      height: 260px;
      border: 1px solid rgba(217,170,74,.16);
      transform: rotate(16deg);
      background:
        repeating-linear-gradient(45deg, rgba(217,170,74,.08) 0 8px, transparent 8px 18px);
    }

    .eyebrow {
      width: fit-content;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 18px;
      padding: 8px 11px;
      border: 1px solid rgba(57, 215, 196, .34);
      border-radius: 999px;
      color: var(--cyan);
      background: rgba(57, 215, 196, .08);
      font-size: 13px;
      font-weight: 800;
    }

    .pulse {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 0 6px rgba(57, 215, 196, .12);
    }

    h1 {
      position: relative;
      z-index: 1;
      max-width: 820px;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.12;
      font-weight: 950;
      letter-spacing: 0;
    }

    .hero-lead {
      position: relative;
      z-index: 1;
      margin-top: 18px;
      max-width: 720px;
      color: var(--muted);
      font-size: 18px;
    }

    .hero-points {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 24px 0 26px;
      list-style: none;
    }

    .hero-points li {
      padding: 8px 11px;
      border: 1px solid var(--border);
      border-radius: 999px;
      color: var(--text);
      background: rgba(255,255,255,.04);
      font-size: 13px;
      font-weight: 700;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 44px;
      padding: 11px 16px;
      border-radius: var(--radius);
      border: 1px solid transparent;
      font-weight: 900;
      transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease, color .2s ease;
    }

    .btn svg {
      width: 18px;
      height: 18px;
      transition: transform .2s ease;
    }

    .btn-primary {
      color: #16130a;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      box-shadow: 0 12px 26px rgba(217, 170, 74, .24);
    }

    .btn-primary:hover,
    .btn-primary:focus-visible {
      transform: translateY(-2px);
      border-color: rgba(255,255,255,.32);
      box-shadow: 0 18px 32px rgba(217, 170, 74, .32);
      outline: none;
    }

    .btn-primary:hover svg {
      transform: translateY(2px);
    }

    .btn-outline {
      color: var(--text);
      border-color: var(--border);
      background: rgba(255,255,255,.035);
    }

    .btn-outline:hover,
    .btn-outline:focus-visible {
      transform: translateY(-2px);
      border-color: var(--cyan);
      color: var(--cyan);
      outline: none;
    }

    .download-panel {
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, rgba(38,41,31,.96), rgba(25,27,21,.96));
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .download-visual {
      min-height: 188px;
      padding: 24px;
      background:
        linear-gradient(135deg, rgba(217,170,74,.2), rgba(57,215,196,.08)),
        repeating-linear-gradient(135deg, rgba(255,255,255,.05) 0 1px, transparent 1px 12px);
      border-bottom: 1px solid var(--border);
      display: grid;
      align-content: end;
      gap: 10px;
    }

    .app-badge {
      width: 62px;
      height: 62px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      color: #15120a;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      font-size: 30px;
      font-weight: 950;
      box-shadow: 0 12px 24px rgba(0,0,0,.28);
    }

    .download-visual strong {
      font-size: 22px;
      line-height: 1.25;
    }

    .download-visual p {
      color: var(--muted);
      font-size: 14px;
    }

    .download-body {
      padding: 22px;
    }

    .version-row {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
      margin-bottom: 16px;
    }

    .version-item {
      padding: 12px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.035);
    }

    .version-item span {
      display: block;
      color: var(--weak);
      font-size: 12px;
      font-weight: 700;
    }

    .version-item strong {
      display: block;
      margin-top: 2px;
      color: var(--text);
      font-size: 15px;
    }

    .qr-wrap {
      display: grid;
      grid-template-columns: 96px 1fr;
      gap: 14px;
      align-items: center;
      margin: 14px 0 18px;
      padding: 13px;
      border-radius: var(--radius);
      border: 1px dashed rgba(57,215,196,.36);
      background: rgba(57,215,196,.06);
    }

    .qr {
      width: 96px;
      height: 96px;
      border-radius: var(--radius);
      background:
        linear-gradient(90deg, #f5f1e8 10px, transparent 10px 18px, #f5f1e8 18px 28px, transparent 28px),
        linear-gradient(#f5f1e8 10px, transparent 10px 18px, #f5f1e8 18px 28px, transparent 28px),
        #171914;
      background-size: 38px 38px;
      border: 8px solid #f5f1e8;
    }

    .qr-wrap p {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
    }

    .install-note {
      display: flex;
      gap: 9px;
      align-items: flex-start;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }

    .latest-strip {
      margin-top: 18px;
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 14px 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.04);
    }

    .strip-label {
      padding: 5px 8px;
      border-radius: 999px;
      color: #15120a;
      background: var(--cyan);
      font-size: 12px;
      font-weight: 900;
    }

    .latest-strip p {
      color: var(--muted);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .latest-strip a {
      color: var(--gold-2);
      font-weight: 900;
    }

    main {
      padding-bottom: 54px;
    }

    .section {
      padding: 42px 0;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 20px;
    }

    .section-kicker {
      color: var(--cyan);
      font-size: 13px;
      font-weight: 900;
    }

    .section-title {
      margin-top: 4px;
      font-size: clamp(24px, 3vw, 36px);
      line-height: 1.25;
      font-weight: 950;
    }

    .section-desc {
      max-width: 620px;
      color: var(--muted);
      font-size: 15px;
    }

    .text-link {
      color: var(--gold-2);
      font-weight: 900;
      transition: color .2s ease;
    }

    .text-link:hover,
    .text-link:focus-visible {
      color: var(--cyan);
      outline: none;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 22px;
      align-items: start;
    }

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

    .news-card {
      display: grid;
      grid-template-columns: 164px minmax(0, 1fr);
      gap: 16px;
      padding: 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.035);
      transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
    }

    .news-card:hover {
      transform: translateY(-2px);
      border-color: rgba(217,170,74,.38);
      background: rgba(255,255,255,.055);
      box-shadow: var(--shadow-soft);
    }

    .thumb {
      min-height: 118px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      background:
        linear-gradient(135deg, rgba(217,170,74,.34), rgba(57,215,196,.12)),
        linear-gradient(45deg, rgba(255,255,255,.09) 25%, transparent 25% 50%, rgba(255,255,255,.09) 50% 75%, transparent 75%);
      background-size: auto, 28px 28px;
      position: relative;
      overflow: hidden;
    }

    .thumb::after {
      content: attr(data-mark);
      position: absolute;
      left: 12px;
      bottom: 10px;
      color: rgba(255,255,255,.86);
      font-weight: 950;
      font-size: 22px;
    }

    .card-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 7px;
      align-items: center;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      padding: 4px 8px;
      border-radius: 999px;
      border: 1px solid rgba(217,170,74,.28);
      color: var(--gold-2);
      background: rgba(217,170,74,.08);
      font-size: 12px;
      font-weight: 800;
      line-height: 1.4;
    }

    .time {
      color: var(--weak);
      font-size: 12px;
      font-weight: 700;
    }

    .news-card h3 {
      font-size: 19px;
      line-height: 1.38;
      margin-bottom: 6px;
    }

    .news-card p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .side-panel,
    .tool-panel,
    .proof-panel {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.02));
      box-shadow: var(--shadow-soft);
    }

    .side-panel {
      padding: 18px;
      position: sticky;
      top: 92px;
    }

    .side-panel h3 {
      margin-bottom: 12px;
      font-size: 20px;
    }

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

    .quick-list a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      color: var(--muted);
      background: rgba(255,255,255,.025);
      font-weight: 800;
      transition: .2s ease;
    }

    .quick-list a:hover,
    .quick-list a:focus-visible {
      color: var(--text);
      border-color: var(--cyan);
      transform: translateX(3px);
      outline: none;
    }

    .download-section {
      display: grid;
      grid-template-columns: 360px minmax(0, 1fr);
      gap: 22px;
      align-items: stretch;
    }

    .tool-panel {
      padding: 22px;
    }

    .tool-panel h3 {
      font-size: 24px;
      margin-bottom: 8px;
    }

    .tool-panel p {
      color: var(--muted);
      margin-bottom: 16px;
    }

    .spec-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }

    .spec {
      padding: 14px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      background: rgba(255,255,255,.03);
    }

    .spec span {
      color: var(--weak);
      font-size: 12px;
      font-weight: 800;
    }

    .spec strong {
      display: block;
      margin-top: 3px;
      font-size: 18px;
    }

    .steps {
      display: grid;
      gap: 12px;
      counter-reset: step;
      list-style: none;
    }

    .steps li {
      position: relative;
      padding: 16px 16px 16px 54px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.03);
    }

    .steps li::before {
      counter-increment: step;
      content: counter(step);
      position: absolute;
      left: 14px;
      top: 16px;
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #15120a;
      background: var(--gold);
      font-weight: 950;
    }

    .steps strong {
      display: block;
      margin-bottom: 2px;
      font-size: 17px;
    }

    .steps p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.6;
    }

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

    .category-card {
      min-height: 230px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 20px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      background: linear-gradient(180deg, rgba(255,255,255,.052), rgba(255,255,255,.02));
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }

    .category-card:hover {
      transform: translateY(-3px);
      border-color: var(--border-strong);
      background: linear-gradient(180deg, rgba(217,170,74,.10), rgba(255,255,255,.025));
    }

    .category-icon {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: var(--radius);
      color: #15120a;
      background: var(--gold);
      font-weight: 950;
      margin-bottom: 15px;
    }

    .category-card h3 {
      font-size: 21px;
      margin-bottom: 8px;
    }

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

    .category-card .text-link {
      margin-top: 18px;
      display: inline-flex;
    }

    .rank-board {
      display: grid;
      grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
      gap: 20px;
    }

    .headline-card {
      min-height: 390px;
      padding: 24px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      background:
        linear-gradient(180deg, rgba(217,170,74,.18), rgba(255,255,255,.035)),
        repeating-linear-gradient(90deg, rgba(255,255,255,.04) 0 1px, transparent 1px 24px);
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
    }

    .headline-card h3 {
      font-size: 30px;
      line-height: 1.25;
      margin: 12px 0 8px;
    }

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

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

    .rank-list li {
      display: grid;
      grid-template-columns: 42px minmax(0, 1fr) auto;
      gap: 12px;
      align-items: center;
      padding: 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.035);
      transition: .2s ease;
    }

    .rank-list li:hover {
      border-color: rgba(57,215,196,.38);
      transform: translateY(-2px);
    }

    .rank-no {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #15120a;
      background: var(--cyan);
      font-weight: 950;
    }

    .rank-list strong {
      display: block;
      line-height: 1.4;
    }

    .rank-list span {
      color: var(--muted);
      font-size: 13px;
    }

    .status {
      color: var(--green);
      font-size: 13px;
      font-weight: 900;
      white-space: nowrap;
    }

    .proof-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }

    .proof-panel {
      padding: 18px;
    }

    .proof-panel strong {
      display: block;
      color: var(--gold-2);
      font-size: 28px;
      line-height: 1.2;
    }

    .proof-panel span {
      color: var(--muted);
      font-size: 13px;
    }

    .notice-band {
      padding: 22px;
      border-radius: var(--radius);
      border: 1px solid rgba(57,215,196,.28);
      background: linear-gradient(135deg, rgba(57,215,196,.10), rgba(217,170,74,.08));
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 18px;
      align-items: center;
    }

    .notice-band h2 {
      font-size: 25px;
      line-height: 1.32;
      margin-bottom: 4px;
    }

    .notice-band p {
      color: var(--muted);
    }

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

    details {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.035);
      overflow: hidden;
    }

    summary {
      list-style: none;
      cursor: pointer;
      padding: 16px 18px;
      font-weight: 900;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: center;
    }

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

    summary::after {
      content: "+";
      width: 26px;
      height: 26px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #15120a;
      background: var(--gold);
      flex: 0 0 auto;
      transition: transform .2s ease;
    }

    details[open] summary::after {
      transform: rotate(45deg);
    }

    details p {
      padding: 0 18px 18px;
      color: var(--muted);
      border-top: 1px solid var(--border);
      padding-top: 14px;
    }

    .footer {
      border-top: 1px solid var(--border);
      background: rgba(10, 11, 9, .78);
      padding: 34px 0 24px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) repeat(3, minmax(160px, .45fr));
      gap: 26px;
      align-items: start;
    }

    .footer h3,
    .footer h4 {
      margin-bottom: 12px;
      font-size: 17px;
    }

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

    .footer ul {
      list-style: none;
      display: grid;
      gap: 8px;
    }

    .footer a:hover,
    .footer a:focus-visible {
      color: var(--gold-2);
      outline: none;
    }

    .footer-bottom {
      margin-top: 24px;
      padding-top: 18px;
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      gap: 14px;
      color: var(--weak);
      font-size: 13px;
      flex-wrap: wrap;
    }

    @media (max-width: 1024px) {
      .hero-grid,
      .news-layout,
      .download-section,
      .rank-board {
        grid-template-columns: 1fr;
      }

      .hero-copy {
        min-height: auto;
      }

      .side-panel {
        position: static;
      }

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

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

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

      .nav-button {
        display: flex;
      }

      .main-nav {
        position: absolute;
        left: 14px;
        right: 14px;
        top: 72px;
        display: grid;
        gap: 8px;
        padding: 12px;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        background: rgba(17, 18, 15, .98);
        box-shadow: var(--shadow);
        transform: translateY(-8px);
        opacity: 0;
        pointer-events: none;
        transition: .2s ease;
      }

      .nav-toggle:checked ~ .main-nav {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
      }

      .nav-toggle:checked + .nav-button span {
        background: transparent;
      }

      .nav-toggle:checked + .nav-button span::before {
        transform: translateY(0) rotate(45deg);
      }

      .nav-toggle:checked + .nav-button span::after {
        transform: translateY(-2px) rotate(-45deg);
      }

      .hero {
        padding-top: 28px;
      }

      .hero-copy {
        padding: 28px;
      }

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

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

      .latest-strip p {
        white-space: normal;
      }

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

      .thumb {
        min-height: 150px;
      }

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

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

      .section-head {
        display: grid;
      }
    }

    @media (max-width: 520px) {
      .brand-text strong {
        max-width: 220px;
        font-size: 13px;
      }

      .brand-text span {
        display: none;
      }

      .nav-wrap {
        height: 66px;
      }

      .main-nav {
        top: 66px;
      }

      .hero-copy {
        padding: 22px;
      }

      h1 {
        font-size: 31px;
      }

      .actions,
      .btn {
        width: 100%;
      }

      .version-row,
      .spec-grid,
      .qr-wrap,
      .proof-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .qr {
        margin: 0 auto;
      }

      .rank-list li {
        grid-template-columns: 36px minmax(0, 1fr);
      }

      .rank-list .status {
        grid-column: 2;
      }
    }

/* roulang page: category2 */
:root {
      --bg: #11120f;
      --bg-soft: #171914;
      --panel: #1f211b;
      --panel-2: #26291f;
      --text: #f5f1e8;
      --muted: #b8b2a5;
      --weak: #827b6d;
      --gold: #d9aa4a;
      --gold-2: #f0c86b;
      --cyan: #39d7c4;
      --green: #78e08f;
      --red: #ff756b;
      --border: rgba(245, 241, 232, .12);
      --border-strong: rgba(217, 170, 74, .42);
      --shadow: 0 18px 46px rgba(0, 0, 0, .34);
      --shadow-soft: 0 10px 26px rgba(0, 0, 0, .22);
      --radius: 8px;
      --radius-lg: 14px;
      --container: 1180px;
      --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
    }
    * {
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      min-height: 100vh;
      margin: 0;
      font-family: var(--font);
      color: var(--text);
      line-height: 1.75;
      background:
        radial-gradient(circle at 18% 0%, rgba(217, 170, 74, .14), transparent 34%),
        linear-gradient(135deg, #11120f 0%, #171914 48%, #0e1614 100%);
      overflow-x: hidden;
    }
    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      opacity: .18;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
      background-size: 28px 28px;
      mask-image: linear-gradient(to bottom, #000, transparent 78%);
      z-index: -1;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    img,
    svg {
      max-width: 100%;
      display: block;
    }
    button,
    input {
      font: inherit;
    }
    button {
      border: 0;
      cursor: pointer;
    }
    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid var(--border);
      background: rgba(17, 18, 15, .86);
      backdrop-filter: blur(16px);
    }
    .nav-wrap {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 900;
      letter-spacing: 0;
    }
    .brand-mark {
      width: 40px;
      height: 40px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border: 1px solid var(--border-strong);
      border-radius: var(--radius);
      color: #15120a;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      box-shadow: 0 0 0 4px rgba(217, 170, 74, .09);
    }
    .brand-text {
      display: grid;
      line-height: 1.25;
      min-width: 0;
    }
    .brand-text strong {
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
      font-size: 15px;
    }
    .brand-text span {
      color: var(--muted);
      font-size: 12px;
      font-weight: 600;
    }
    .nav-toggle {
      display: none;
    }
    .nav-button {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.04);
      align-items: center;
      justify-content: center;
    }
    .nav-button span,
    .nav-button span::before,
    .nav-button span::after {
      content: "";
      display: block;
      width: 20px;
      height: 2px;
      border-radius: 999px;
      background: var(--text);
      transition: .2s ease;
    }
    .nav-button span::before {
      transform: translateY(-7px);
    }
    .nav-button span::after {
      transform: translateY(5px);
    }
    .main-nav {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 6px;
    }
    .main-nav a {
      position: relative;
      padding: 10px 13px;
      border-radius: var(--radius);
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      transition: color .2s ease, background .2s ease, transform .2s ease;
    }
    .main-nav a:hover,
    .main-nav a:focus-visible {
      color: var(--text);
      background: rgba(255,255,255,.06);
      transform: translateY(-1px);
      outline: none;
    }
    .main-nav a.active {
      color: #17120a;
      background: var(--gold);
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 44px;
      padding: 11px 18px;
      border-radius: var(--radius);
      border: 1px solid transparent;
      font-size: 14px;
      font-weight: 900;
      line-height: 1.2;
      transition: transform .2s ease, border-color .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
    }
    .btn-primary {
      color: #17120a;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      box-shadow: 0 12px 24px rgba(217,170,74,.18);
    }
    .btn-primary:hover,
    .btn-primary:focus-visible {
      color: #17120a;
      transform: translateY(-2px);
      border-color: rgba(255,255,255,.4);
      box-shadow: 0 16px 28px rgba(217,170,74,.24);
      outline: none;
    }
    .btn-outline {
      color: var(--text);
      border-color: var(--border);
      background: rgba(255,255,255,.04);
    }
    .btn-outline:hover,
    .btn-outline:focus-visible {
      color: var(--gold-2);
      border-color: var(--border-strong);
      background: rgba(217,170,74,.08);
      transform: translateY(-2px);
      outline: none;
    }
    .page-hero {
      padding: 46px 0 26px;
    }
    .hero-panel {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(300px, .72fr);
      gap: 26px;
      align-items: stretch;
      padding: 38px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(125deg, rgba(217,170,74,.15), rgba(57,215,196,.06) 42%, rgba(255,255,255,.03)),
        linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.015));
      box-shadow: var(--shadow);
    }
    .hero-panel::after {
      content: "";
      position: absolute;
      right: -90px;
      top: -120px;
      width: 320px;
      height: 320px;
      border: 1px solid rgba(217,170,74,.16);
      transform: rotate(20deg);
      background: repeating-linear-gradient(45deg, rgba(217,170,74,.08) 0 8px, transparent 8px 18px);
    }
    .hero-content,
    .download-console {
      position: relative;
      z-index: 1;
    }
    .eyebrow {
      width: fit-content;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
      padding: 8px 11px;
      border: 1px solid rgba(57, 215, 196, .34);
      border-radius: 999px;
      color: var(--cyan);
      background: rgba(57, 215, 196, .08);
      font-size: 13px;
      font-weight: 800;
    }
    h1,
    h2,
    h3,
    p {
      margin-top: 0;
    }
    h1 {
      max-width: 760px;
      margin-bottom: 16px;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.08;
      font-weight: 950;
      letter-spacing: 0;
    }
    .hero-desc {
      max-width: 760px;
      margin-bottom: 22px;
      color: var(--muted);
      font-size: 17px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 24px;
    }
    .hero-meta {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .hero-meta li {
      padding: 13px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.04);
    }
    .hero-meta strong {
      display: block;
      color: var(--gold-2);
      font-size: 20px;
      line-height: 1.2;
    }
    .hero-meta span {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }
    .download-console {
      border: 1px solid rgba(217,170,74,.24);
      border-radius: var(--radius-lg);
      background: rgba(17,18,15,.72);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
    }
    .console-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 15px 16px;
      border-bottom: 1px solid var(--border);
      background: rgba(255,255,255,.035);
    }
    .console-head strong {
      font-size: 15px;
    }
    .status-dot {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: var(--green);
      font-size: 12px;
      font-weight: 900;
    }
    .status-dot::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--green);
      box-shadow: 0 0 0 5px rgba(120,224,143,.1);
    }
    .console-body {
      padding: 18px;
    }
    .version-line {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-bottom: 14px;
    }
    .version-item {
      padding: 12px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.035);
    }
    .version-item span {
      display: block;
      color: var(--weak);
      font-size: 12px;
      font-weight: 800;
    }
    .version-item strong {
      color: var(--text);
      font-size: 18px;
    }
    .qr-box {
      display: grid;
      grid-template-columns: 96px 1fr;
      gap: 14px;
      align-items: center;
      margin: 16px 0;
      padding: 14px;
      border: 1px dashed rgba(57,215,196,.34);
      border-radius: var(--radius);
      background: rgba(57,215,196,.055);
    }
    .qr {
      width: 96px;
      height: 96px;
      padding: 8px;
      border-radius: var(--radius);
      background:
        linear-gradient(90deg, #f5f1e8 10px, transparent 10px) 0 0 / 20px 20px,
        linear-gradient(#f5f1e8 10px, transparent 10px) 0 0 / 20px 20px,
        #151711;
      border: 8px solid #f5f1e8;
      box-shadow: inset 0 0 0 8px #151711;
    }
    .qr-text strong {
      display: block;
      margin-bottom: 3px;
      color: var(--cyan);
      font-size: 15px;
    }
    .qr-text p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }
    .install-note {
      margin: 12px 0 0;
      color: var(--muted);
      font-size: 13px;
    }
    .section {
      padding: 34px 0;
    }
    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 18px;
    }
    .section-kicker {
      margin-bottom: 8px;
      color: var(--cyan);
      font-size: 13px;
      font-weight: 900;
    }
    .section h2 {
      margin-bottom: 0;
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.22;
      font-weight: 950;
    }
    .section-head p {
      max-width: 520px;
      margin-bottom: 0;
      color: var(--muted);
      font-size: 14px;
    }
    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.035);
      box-shadow: var(--shadow-soft);
    }
    .filter-tabs {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .filter-tabs a {
      padding: 8px 12px;
      border: 1px solid var(--border);
      border-radius: 999px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 900;
      background: rgba(255,255,255,.03);
      transition: .2s ease;
    }
    .filter-tabs a:hover,
    .filter-tabs a.active {
      color: #17120a;
      border-color: var(--gold);
      background: var(--gold);
    }
    .search-box {
      min-width: 260px;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 9px 12px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      color: var(--weak);
      background: rgba(17,18,15,.66);
    }
    .search-box input {
      width: 100%;
      min-width: 0;
      border: 0;
      outline: 0;
      color: var(--text);
      background: transparent;
    }
    .search-box input::placeholder {
      color: var(--weak);
    }
    .content-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 320px;
      gap: 22px;
      align-items: start;
    }
    .release-list {
      display: grid;
      gap: 14px;
    }
    .release-card {
      display: grid;
      grid-template-columns: 112px minmax(0, 1fr) auto;
      gap: 16px;
      align-items: center;
      padding: 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.02));
      box-shadow: var(--shadow-soft);
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }
    .release-card:hover {
      transform: translateY(-2px);
      border-color: rgba(217,170,74,.34);
      background: rgba(255,255,255,.055);
    }
    .release-icon {
      min-height: 96px;
      display: grid;
      place-items: center;
      border: 1px solid rgba(217,170,74,.26);
      border-radius: var(--radius);
      background:
        linear-gradient(145deg, rgba(217,170,74,.18), rgba(57,215,196,.08)),
        rgba(255,255,255,.035);
      color: var(--gold-2);
      font-size: 34px;
      font-weight: 950;
    }
    .release-body h3 {
      margin-bottom: 6px;
      font-size: 20px;
      line-height: 1.35;
      font-weight: 950;
    }
    .release-body p {
      margin-bottom: 10px;
      color: var(--muted);
      font-size: 14px;
    }
    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 7px;
    }
    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 26px;
      padding: 4px 8px;
      border: 1px solid var(--border);
      border-radius: 999px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 800;
      background: rgba(255,255,255,.035);
    }
    .tag.gold {
      color: var(--gold-2);
      border-color: rgba(217,170,74,.28);
      background: rgba(217,170,74,.08);
    }
    .tag.cyan {
      color: var(--cyan);
      border-color: rgba(57,215,196,.25);
      background: rgba(57,215,196,.07);
    }
    .release-action {
      min-width: 132px;
      display: grid;
      gap: 8px;
      justify-items: end;
      color: var(--weak);
      font-size: 12px;
      font-weight: 800;
      text-align: right;
    }
    .side-stack {
      display: grid;
      gap: 14px;
      position: sticky;
      top: 92px;
    }
    .side-card,
    .info-card,
    .step-card,
    .faq-item,
    .cta-panel {
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.018));
      box-shadow: var(--shadow-soft);
    }
    .side-card {
      padding: 18px;
    }
    .side-card h3 {
      margin-bottom: 12px;
      font-size: 18px;
      font-weight: 950;
    }
    .side-card p {
      color: var(--muted);
      font-size: 14px;
    }
    .side-list {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .side-list li {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--border);
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }
    .side-list li:last-child {
      padding-bottom: 0;
      border-bottom: 0;
    }
    .side-list strong {
      color: var(--text);
    }
    .compat-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }
    .info-card {
      padding: 18px;
      min-height: 168px;
      transition: transform .2s ease, border-color .2s ease;
    }
    .info-card:hover {
      transform: translateY(-2px);
      border-color: rgba(57,215,196,.28);
    }
    .info-card .num {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      border-radius: var(--radius);
      color: #11120f;
      background: var(--cyan);
      font-weight: 950;
    }
    .info-card h3 {
      margin-bottom: 8px;
      font-size: 17px;
      font-weight: 950;
    }
    .info-card p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 14px;
    }
    .steps {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
    }
    .step-card {
      padding: 20px;
      position: relative;
      overflow: hidden;
    }
    .step-card::after {
      content: attr(data-step);
      position: absolute;
      right: 14px;
      top: 4px;
      color: rgba(217,170,74,.12);
      font-size: 58px;
      line-height: 1;
      font-weight: 950;
    }
    .step-card h3 {
      position: relative;
      z-index: 1;
      margin-bottom: 10px;
      font-size: 19px;
      font-weight: 950;
    }
    .step-card p {
      position: relative;
      z-index: 1;
      margin-bottom: 0;
      color: var(--muted);
      font-size: 14px;
    }
    .notice-band {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 18px;
      border: 1px solid rgba(217,170,74,.3);
      border-radius: var(--radius-lg);
      background: rgba(217,170,74,.08);
    }
    .notice-band strong {
      display: block;
      margin-bottom: 4px;
      color: var(--gold-2);
      font-size: 18px;
    }
    .notice-band p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }
    .pagination {
      display: flex;
      justify-content: center;
      gap: 8px;
      margin: 20px 0 0;
    }
    .pagination a {
      min-width: 40px;
      height: 40px;
      display: grid;
      place-items: center;
      padding: 0 12px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      color: var(--muted);
      font-weight: 900;
      background: rgba(255,255,255,.035);
      transition: .2s ease;
    }
    .pagination a:hover,
    .pagination a.active {
      color: #17120a;
      border-color: var(--gold);
      background: var(--gold);
      transform: translateY(-1px);
    }
    .faq-wrap {
      display: grid;
      gap: 10px;
    }
    .faq-item {
      overflow: hidden;
    }
    .faq-item summary {
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 16px 18px;
      cursor: pointer;
      font-weight: 950;
      transition: color .2s ease, background .2s ease;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary::after {
      content: "+";
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      color: var(--gold-2);
      background: rgba(255,255,255,.035);
    }
    .faq-item[open] summary {
      color: var(--gold-2);
      background: rgba(217,170,74,.06);
    }
    .faq-item[open] summary::after {
      content: "−";
    }
    .faq-item p {
      margin: 0;
      padding: 0 18px 18px;
      color: var(--muted);
      font-size: 14px;
    }
    .cta-panel {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 18px;
      align-items: center;
      padding: 28px;
      background:
        linear-gradient(135deg, rgba(217,170,74,.13), rgba(57,215,196,.075)),
        rgba(255,255,255,.025);
    }
    .cta-panel h2 {
      margin-bottom: 8px;
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 950;
    }
    .cta-panel p {
      margin-bottom: 0;
      color: var(--muted);
    }
    .footer {
      margin-top: 38px;
      padding: 42px 0 24px;
      border-top: 1px solid var(--border);
      background: rgba(12,13,10,.72);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .8fr .95fr 1fr;
      gap: 24px;
    }
    .footer h3,
    .footer h4 {
      margin-bottom: 12px;
      font-weight: 950;
    }
    .footer h3 {
      font-size: 18px;
    }
    .footer h4 {
      color: var(--gold-2);
      font-size: 15px;
    }
    .footer p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }
    .footer ul {
      display: grid;
      gap: 8px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .footer li,
    .footer a {
      color: var(--muted);
      font-size: 14px;
      transition: color .2s ease;
      word-break: break-word;
    }
    .footer a:hover {
      color: var(--gold-2);
    }
    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-top: 28px;
      padding-top: 18px;
      border-top: 1px solid var(--border);
      color: var(--weak);
      font-size: 13px;
    }
    @media (max-width: 1024px) {
      .hero-panel,
      .content-layout {
        grid-template-columns: 1fr;
      }
      .side-stack {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
      .compat-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
      .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }
    @media (max-width: 768px) {
      .container {
        width: min(100% - 28px, var(--container));
      }
      .nav-wrap {
        height: 66px;
      }
      .nav-button {
        display: flex;
      }
      .main-nav {
        position: absolute;
        left: 14px;
        right: 14px;
        top: 72px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 10px;
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        background: rgba(17,18,15,.97);
        box-shadow: var(--shadow);
      }
      .main-nav a {
        width: 100%;
      }
      .nav-toggle:checked ~ .main-nav {
        display: flex;
      }
      .nav-toggle:checked + .nav-button span {
        background: transparent;
      }
      .nav-toggle:checked + .nav-button span::before {
        transform: translateY(1px) rotate(45deg);
      }
      .nav-toggle:checked + .nav-button span::after {
        transform: translateY(-1px) rotate(-45deg);
      }
      .page-hero {
        padding-top: 26px;
      }
      .hero-panel {
        padding: 24px;
      }
      .hero-meta,
      .steps,
      .side-stack {
        grid-template-columns: 1fr;
      }
      .section-head,
      .notice-band,
      .cta-panel {
        grid-template-columns: 1fr;
        align-items: start;
      }
      .filter-bar {
        align-items: stretch;
      }
      .search-box {
        min-width: 100%;
      }
      .release-card {
        grid-template-columns: 88px minmax(0, 1fr);
      }
      .release-action {
        grid-column: 1 / -1;
        justify-items: start;
        text-align: left;
      }
      .release-icon {
        min-height: 88px;
      }
      .version-line {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 520px) {
      .brand-text strong {
        max-width: 210px;
        font-size: 13px;
      }
      .brand-text span {
        font-size: 11px;
      }
      .brand-mark {
        width: 36px;
        height: 36px;
      }
      h1 {
        font-size: 32px;
      }
      .hero-panel {
        padding: 20px;
      }
      .hero-actions,
      .filter-tabs {
        flex-direction: column;
        align-items: stretch;
      }
      .btn,
      .filter-tabs a {
        width: 100%;
      }
      .qr-box,
      .release-card,
      .compat-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .qr {
        margin: 0 auto;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

/* roulang page: category1 */
:root{
 --bg:#11120f;--bg-soft:#171914;--panel:#1f211b;--panel-2:#26291f;--text:#f5f1e8;--muted:#b8b2a5;--weak:#827b6d;
 --gold:#d9aa4a;--gold-2:#f0c86b;--cyan:#39d7c4;--green:#78e08f;--red:#ff756b;
 --border:rgba(245,241,232,.12);--border-strong:rgba(217,170,74,.42);--shadow:0 18px 46px rgba(0,0,0,.34);
 --shadow-soft:0 10px 26px rgba(0,0,0,.22);--radius:8px;--radius-lg:14px;--container:1180px;
 --font:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{min-height:100vh;margin:0;font-family:var(--font);color:var(--text);line-height:1.75;background:radial-gradient(circle at 18% 0%,rgba(217,170,74,.14),transparent 34%),linear-gradient(135deg,#11120f 0%,#171914 48%,#0e1614 100%);overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.18;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:28px 28px;mask-image:linear-gradient(to bottom,#000,transparent 78%);z-index:-1}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%;display:block}
button,input{font:inherit}
button{border:0;cursor:pointer}
.container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--border);background:rgba(17,18,15,.86);backdrop-filter:blur(16px)}
.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:12px;min-width:0;font-weight:900;letter-spacing:0}
.brand-mark{width:40px;height:40px;flex:0 0 auto;display:grid;place-items:center;border:1px solid var(--border-strong);border-radius:var(--radius);color:#15120a;background:linear-gradient(135deg,var(--gold-2),var(--gold));box-shadow:0 0 0 4px rgba(217,170,74,.09)}
.brand-text{display:grid;line-height:1.25;min-width:0}
.brand-text strong{overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:15px}
.brand-text span{color:var(--muted);font-size:12px;font-weight:600}
.nav-toggle{display:none}
.nav-button{display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:var(--radius);background:rgba(255,255,255,.04);align-items:center;justify-content:center}
.nav-button span,.nav-button span::before,.nav-button span::after{content:"";display:block;width:20px;height:2px;border-radius:999px;background:var(--text);transition:.2s ease}
.nav-button span::before{transform:translateY(-7px)}
.nav-button span::after{transform:translateY(5px)}
.main-nav{display:flex;align-items:center;justify-content:flex-end;gap:6px}
.main-nav a{position:relative;padding:10px 13px;border-radius:var(--radius);color:var(--muted);font-size:14px;font-weight:700;transition:color .2s ease,background .2s ease,transform .2s ease}
.main-nav a:hover,.main-nav a:focus-visible{color:var(--text);background:rgba(255,255,255,.06);transform:translateY(-1px);outline:none}
.main-nav a.active{color:#17120a;background:var(--gold)}
.page-hero{padding:52px 0 28px}
.breadcrumbs{display:flex;align-items:center;gap:9px;margin-bottom:20px;color:var(--weak);font-size:13px}
.breadcrumbs a{transition:color .2s ease}
.breadcrumbs a:hover{color:var(--gold-2)}
.breadcrumbs b{color:var(--gold)}
.hero-panel{position:relative;overflow:hidden;padding:42px 46px;border:1px solid var(--border);border-radius:var(--radius-lg);background:linear-gradient(110deg,rgba(217,170,74,.17),rgba(31,33,27,.89) 47%,rgba(57,215,196,.09));box-shadow:var(--shadow)}
.hero-panel::after{content:"";position:absolute;right:-50px;top:-75px;width:265px;height:265px;border:1px solid rgba(240,200,107,.19);border-radius:50%;box-shadow:0 0 0 24px rgba(240,200,107,.035),0 0 0 50px rgba(240,200,107,.025)}
.eyebrow{position:relative;z-index:1;width:max-content;display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;padding:7px 11px;border:1px solid rgba(57,215,196,.34);border-radius:999px;color:var(--cyan);background:rgba(57,215,196,.08);font-size:13px;font-weight:800}
.dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
h1,h2,h3,h4,p{margin-top:0}
h1{position:relative;z-index:1;max-width:760px;margin-bottom:14px;font-size:clamp(32px,5vw,53px);line-height:1.18;letter-spacing:-.04em;font-weight:900}
.hero-panel p{position:relative;z-index:1;max-width:760px;margin-bottom:24px;color:var(--muted);font-size:17px}
.hero-meta{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px}
.meta-chip{padding:7px 11px;border:1px solid var(--border);border-radius:999px;color:var(--text);background:rgba(17,18,15,.35);font-size:13px;font-weight:700}
.meta-chip strong{color:var(--gold-2)}
.main-area{padding:18px 0 78px}
.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin:0 0 16px}
.section-head h2{margin:0;font-size:25px;font-weight:900;letter-spacing:-.02em}
.section-head p{margin:0;color:var(--muted);font-size:14px}
.filter-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);background:rgba(255,255,255,.03)}
.filter-tabs{display:flex;flex-wrap:wrap;gap:7px}
.filter-tabs button{padding:7px 12px;border:1px solid transparent;border-radius:6px;color:var(--muted);background:transparent;font-size:13px;font-weight:800;transition:.2s ease}
.filter-tabs button:hover,.filter-tabs button:focus-visible{border-color:var(--border);color:var(--text);background:rgba(255,255,255,.06);outline:none}
.filter-tabs button.active{border-color:rgba(217,170,74,.42);color:#191409;background:var(--gold)}
.result-count{flex:0 0 auto;color:var(--weak);font-size:13px}
.news-list{display:grid;gap:12px}
.news-card{display:grid;grid-template-columns:152px minmax(0,1fr);gap:18px;min-height:154px;padding:14px;border:1px solid var(--border);border-radius:var(--radius-lg);background:linear-gradient(135deg,rgba(255,255,255,.045),rgba(255,255,255,.015));box-shadow:var(--shadow-soft);transition:transform .22s ease,border-color .22s ease,background .22s ease}
.news-card:hover{transform:translateY(-3px);border-color:var(--border-strong);background:linear-gradient(135deg,rgba(217,170,74,.09),rgba(255,255,255,.035))}
.news-visual{position:relative;min-height:124px;overflow:hidden;border:1px solid rgba(255,255,255,.09);border-radius:7px;background:#24261e}
.news-visual::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(217,170,74,.72),rgba(50,54,42,.18) 52%,rgba(57,215,196,.35))}
.news-visual::after{content:"金年会";position:absolute;left:16px;bottom:12px;color:#fff7dc;font-size:20px;font-weight:900;letter-spacing:.04em}
.visual-update::before{background:linear-gradient(135deg,#796025,#25271f 48%,#197266)}
.visual-event::before{background:linear-gradient(135deg,#b94835,#3a241e 48%,#d9aa4a)}
.visual-guide::before{background:linear-gradient(135deg,#1c897c,#27352d 53%,#d9aa4a)}
.visual-notice::before{background:linear-gradient(135deg,#5c4a8d,#23221f 54%,#4bb8a8)}
.news-body{display:flex;flex-direction:column;align-items:flex-start;min-width:0}
.news-top{display:flex;align-items:center;gap:9px;margin-bottom:7px;color:var(--weak);font-size:12px}
.tag{display:inline-flex;align-items:center;padding:3px 8px;border-radius:999px;color:var(--gold-2);background:rgba(217,170,74,.12);font-weight:800}
.tag.cyan{color:var(--cyan);background:rgba(57,215,196,.1)}
.tag.green{color:var(--green);background:rgba(120,224,143,.1)}
.news-card h3{margin:0 0 6px;font-size:18px;line-height:1.42;font-weight:900;transition:color .2s ease}
.news-card:hover h3{color:var(--gold-2)}
.news-card p{display:-webkit-box;overflow:hidden;margin:0;color:var(--muted);font-size:14px;line-height:1.68;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-bottom{display:flex;align-items:center;justify-content:space-between;width:100%;gap:12px;margin-top:auto;padding-top:9px;color:var(--weak);font-size:12px}
.read-link{color:var(--cyan);font-weight:800;transition:color .2s ease,transform .2s ease}
.read-link:hover{color:#a0fff2;transform:translateX(3px)}
.pagination-wrap{display:flex;justify-content:center;margin-top:28px}
.pagination{display:flex;gap:7px;list-style:none;margin:0;padding:0}
.pagination a,.pagination span{display:grid;place-items:center;min-width:39px;height:39px;padding:0 11px;border:1px solid var(--border);border-radius:7px;color:var(--muted);background:rgba(255,255,255,.025);font-size:14px;font-weight:800;transition:.2s ease}
.pagination a:hover,.pagination a:focus-visible{border-color:var(--border-strong);color:var(--text);background:rgba(217,170,74,.11);outline:none}
.pagination .current{border-color:var(--gold);color:#17120a;background:var(--gold)}
.sidebar{display:grid;gap:16px}
.side-card{padding:20px;border:1px solid var(--border);border-radius:var(--radius-lg);background:rgba(31,33,27,.82);box-shadow:var(--shadow-soft)}
.side-card h3{margin-bottom:13px;font-size:18px;font-weight:900}
.download-card{border-color:rgba(57,215,196,.25);background:linear-gradient(145deg,rgba(57,215,196,.12),rgba(31,33,27,.9) 58%)}
.version-row{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--border);font-size:13px}
.version-row:last-of-type{border-bottom:0}
.version-row span{color:var(--weak)}
.version-row strong{color:var(--text)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 16px;border:1px solid transparent;border-radius:7px;font-weight:900;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease}
.btn-primary{width:100%;margin-top:16px;color:#161209;background:var(--gold);box-shadow:0 10px 20px rgba(217,170,74,.16)}
.btn-primary:hover,.btn-primary:focus-visible{transform:translateY(-2px);border-color:var(--gold-2);background:var(--gold-2);box-shadow:0 14px 25px rgba(217,170,74,.28);outline:none}
.hot-list{display:grid;gap:2px;list-style:none;margin:0;padding:0}
.hot-list a{display:flex;align-items:flex-start;gap:10px;padding:10px 0;border-bottom:1px solid var(--border);font-size:14px;font-weight:700;line-height:1.5;transition:color .2s ease}
.hot-list li:last-child a{border-bottom:0}
.hot-list a:hover{color:var(--gold-2)}
.rank{display:grid;place-items:center;flex:0 0 auto;width:22px;height:22px;border-radius:5px;color:#17120a;background:var(--gold);font-size:12px;font-weight:900}
.rank.low{color:var(--muted);background:rgba(255,255,255,.09)}
.notice-text{margin:0;color:var(--muted);font-size:14px}
.notice-text strong{color:var(--gold-2)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{padding:6px 9px;border:1px solid var(--border);border-radius:999px;color:var(--muted);background:rgba(255,255,255,.025);font-size:12px;font-weight:700;transition:.2s ease}
.tag-cloud a:hover{border-color:rgba(57,215,196,.4);color:var(--cyan);background:rgba(57,215,196,.07)}
.feature-section{padding:0 0 76px}
.feature-box{display:grid;grid-template-columns:1fr 1.1fr;overflow:hidden;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--panel);box-shadow:var(--shadow)}
.feature-visual{min-height:290px;position:relative;background:linear-gradient(145deg,#b57c2c 0%,#48351f 42%,#113c37 100%)}
.feature-visual::before{content:"本周焦点";position:absolute;left:32px;top:30px;padding:7px 11px;border:1px solid rgba(255,255,255,.3);border-radius:999px;color:#fff7e5;background:rgba(0,0,0,.18);font-size:13px;font-weight:900}
.feature-visual::after{content:"金年会";position:absolute;left:32px;bottom:22px;color:#fff8e7;font-size:clamp(40px,5vw,65px);font-weight:900;letter-spacing:-.06em}
.feature-copy{padding:34px}
.feature-copy .eyebrow{margin-bottom:12px}
.feature-copy h2{margin-bottom:12px;font-size:28px;line-height:1.34;font-weight:900}
.feature-copy p{color:var(--muted);font-size:15px}
.feature-link{display:inline-flex;align-items:center;gap:8px;margin-top:7px;color:var(--cyan);font-weight:900;transition:gap .2s ease,color .2s ease}
.feature-link:hover{gap:12px;color:#a0fff2}
.faq-section{padding:0 0 76px}
.section-title{text-align:center;max-width:700px;margin:0 auto 26px}
.section-title span{color:var(--cyan);font-size:13px;font-weight:900;letter-spacing:.08em}
.section-title h2{margin:6px 0 8px;font-size:30px;font-weight:900}
.section-title p{margin:0;color:var(--muted);font-size:15px}
.faq-list{max-width:900px;margin:auto;display:grid;gap:10px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);background:rgba(255,255,255,.025);overflow:hidden}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 19px;cursor:pointer;list-style:none;font-size:16px;font-weight:900}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"＋";color:var(--gold-2);font-size:22px;line-height:1;transition:transform .2s ease}
.faq-item[open] summary{border-bottom:1px solid var(--border);background:rgba(217,170,74,.06)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{margin:0;padding:15px 19px 18px;color:var(--muted);font-size:14px}
.cta{padding:0 0 80px}
.cta-box{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:31px 35px;border:1px solid rgba(217,170,74,.36);border-radius:var(--radius-lg);background:linear-gradient(105deg,rgba(217,170,74,.19),rgba(31,33,27,.94) 62%);box-shadow:var(--shadow)}
.cta-box h2{margin:0 0 5px;font-size:27px;font-weight:900}
.cta-box p{margin:0;color:var(--muted);font-size:15px}
.cta-actions{display:flex;flex:0 0 auto;gap:10px}
.btn-outline{color:var(--text);border-color:var(--border);background:rgba(255,255,255,.04)}
.btn-outline:hover,.btn-outline:focus-visible{transform:translateY(-2px);border-color:var(--cyan);color:var(--cyan);background:rgba(57,215,196,.08);outline:none}
.footer{border-top:1px solid var(--border);background:rgba(10,11,9,.62)}
.footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1.2fr;gap:30px;padding:48px 0 34px}
.footer h3{margin-bottom:11px;color:var(--gold-2);font-size:17px;font-weight:900}
.footer h4{margin-bottom:12px;font-size:15px;font-weight:900}
.footer p{max-width:400px;margin:0;color:var(--muted);font-size:13px}
.footer ul{display:grid;gap:7px;margin:0;padding:0;list-style:none;color:var(--muted);font-size:13px}
.footer a{transition:color .2s ease}
.footer a:hover{color:var(--gold-2)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:17px 0;border-top:1px solid var(--border);color:var(--weak);font-size:12px}
@media(max-width:1024px){
 .content-grid{grid-template-columns:minmax(0,1fr) 270px}
 .hero-panel{padding:36px}
 .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
 .footer-grid>div:last-child{grid-column:span 3}
}
@media(max-width:768px){
 .container{width:min(var(--container),calc(100% - 28px))}
 .nav-wrap{height:64px}
 .nav-button{display:flex;flex:0 0 auto}
 .main-nav{position:absolute;top:64px;left:0;right:0;display:none;align-items:stretch;flex-direction:column;gap:3px;padding:12px 14px 16px;border-bottom:1px solid var(--border);background:rgba(17,18,15,.98)}
 .main-nav a{padding:11px 13px}
 .nav-toggle:checked~.main-nav{display:flex}
 .nav-toggle:checked+.nav-button span{background:transparent}
 .nav-toggle:checked+.nav-button span::before{transform:rotate(45deg) translate(5px,5px)}
 .nav-toggle:checked+.nav-button span::after{transform:rotate(-45deg) translate(5px,-5px)}
 .page-hero{padding:32px 0 22px}
 .hero-panel{padding:28px 22px}
 .content-grid{grid-template-columns:1fr}
 .sidebar{grid-template-columns:repeat(2,1fr)}
 .sidebar .download-card{grid-column:span 2}
 .feature-box{grid-template-columns:1fr}
 .feature-visual{min-height:220px}
 .cta-box{align-items:flex-start;flex-direction:column;padding:28px}
 .footer-grid{grid-template-columns:1fr 1fr}
 .footer-grid>div:last-child{grid-column:auto}
}
@media(max-width:520px){
 .brand-text strong{max-width:205px;font-size:13px}
 .brand-text span{font-size:11px}
 h1{font-size:33px}
 .hero-panel p{font-size:15px}
 .section-head{align-items:flex-start;flex-direction:column;gap:4px}
 .filter-bar{align-items:flex-start;flex-direction:column}
 .result-count{padding-left:4px}
 .news-card{grid-template-columns:1fr;gap:13px}
 .news-visual{min-height:108px}
 .sidebar{grid-template-columns:1fr}
 .sidebar .download-card{grid-column:auto}
 .feature-copy{padding:25px 21px}
 .feature-copy h2{font-size:23px}
 .cta-actions{width:100%;flex-direction:column}
 .cta-actions .btn{width:100%}
 .footer-grid{grid-template-columns:1fr;gap:24px;padding-top:36px}
 .footer-bottom{align-items:flex-start;flex-direction:column;gap:5px}
 .pagination a,.pagination span{min-width:34px;height:36px;padding:0 8px}
}

/* roulang page: category3 */
:root {
      --bg: #11120f;
      --bg-soft: #171914;
      --panel: #1f211b;
      --panel-2: #26291f;
      --text: #f5f1e8;
      --muted: #b8b2a5;
      --weak: #827b6d;
      --gold: #d9aa4a;
      --gold-2: #f0c86b;
      --cyan: #39d7c4;
      --green: #78e08f;
      --red: #ff756b;
      --border: rgba(245, 241, 232, .12);
      --border-strong: rgba(217, 170, 74, .42);
      --shadow: 0 18px 46px rgba(0, 0, 0, .34);
      --shadow-soft: 0 10px 26px rgba(0, 0, 0, .22);
      --radius: 8px;
      --radius-lg: 14px;
      --container: 1180px;
      --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      min-height: 100vh;
      margin: 0;
      font-family: var(--font);
      color: var(--text);
      line-height: 1.75;
      background:
        radial-gradient(circle at 18% 0%, rgba(217, 170, 74, .14), transparent 34%),
        linear-gradient(135deg, #11120f 0%, #171914 48%, #0e1614 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      opacity: .18;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
      background-size: 28px 28px;
      mask-image: linear-gradient(to bottom, #000, transparent 78%);
      z-index: -1;
    }

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

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

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid var(--border);
      background: rgba(17, 18, 15, .86);
      backdrop-filter: blur(16px);
    }

    .nav-wrap {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 900;
      letter-spacing: 0;
    }

    .brand-mark {
      width: 40px;
      height: 40px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border: 1px solid var(--border-strong);
      border-radius: var(--radius);
      color: #15120a;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      box-shadow: 0 0 0 4px rgba(217, 170, 74, .09);
    }

    .brand-text {
      display: grid;
      line-height: 1.25;
      min-width: 0;
    }

    .brand-text strong {
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
      font-size: 15px;
    }

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

    .nav-toggle {
      display: none;
    }

    .nav-button {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.04);
      align-items: center;
      justify-content: center;
    }

    .nav-button span,
    .nav-button span::before,
    .nav-button span::after {
      content: "";
      display: block;
      width: 20px;
      height: 2px;
      border-radius: 999px;
      background: var(--text);
      transition: .2s ease;
    }

    .nav-button span::before {
      transform: translateY(-7px);
    }

    .nav-button span::after {
      transform: translateY(5px);
    }

    .main-nav {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 6px;
    }

    .main-nav a {
      position: relative;
      padding: 10px 13px;
      border-radius: var(--radius);
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      transition: color .2s ease, background .2s ease, transform .2s ease;
    }

    .main-nav a:hover,
    .main-nav a:focus-visible {
      color: var(--text);
      background: rgba(255,255,255,.06);
      transform: translateY(-1px);
      outline: none;
    }

    .main-nav a.active {
      color: #17120a;
      background: var(--gold);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 44px;
      padding: 11px 18px;
      border-radius: var(--radius);
      border: 1px solid transparent;
      font-weight: 900;
      line-height: 1.2;
      transition: transform .2s ease, border-color .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
    }

    .btn:hover,
    .btn:focus-visible {
      transform: translateY(-2px);
      outline: none;
    }

    .btn-primary {
      color: #15120a;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      box-shadow: 0 10px 24px rgba(217, 170, 74, .18);
    }

    .btn-primary:hover,
    .btn-primary:focus-visible {
      color: #15120a;
      border-color: rgba(255,255,255,.34);
      box-shadow: 0 14px 30px rgba(217, 170, 74, .28);
    }

    .btn-outline {
      color: var(--text);
      border-color: var(--border);
      background: rgba(255,255,255,.04);
    }

    .btn-outline:hover,
    .btn-outline:focus-visible {
      border-color: var(--cyan);
      color: var(--cyan);
      background: rgba(57, 215, 196, .08);
    }

    .badge,
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      width: fit-content;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 900;
      line-height: 1;
    }

    .badge {
      padding: 8px 10px;
      color: var(--cyan);
      border: 1px solid rgba(57, 215, 196, .35);
      background: rgba(57, 215, 196, .08);
    }

    .tag {
      padding: 7px 9px;
      color: var(--gold-2);
      border: 1px solid rgba(217, 170, 74, .28);
      background: rgba(217, 170, 74, .08);
    }

    .section {
      padding: 54px 0;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 24px;
    }

    .section-kicker {
      margin: 0 0 8px;
      color: var(--cyan);
      font-size: 13px;
      font-weight: 900;
    }

    .section-title {
      margin: 0;
      font-size: clamp(26px, 3vw, 40px);
      line-height: 1.18;
      font-weight: 950;
      letter-spacing: 0;
    }

    .section-desc {
      max-width: 720px;
      margin: 10px 0 0;
      color: var(--muted);
      font-size: 16px;
    }

    .page-hero {
      padding: 48px 0 28px;
    }

    .guide-hero {
      min-height: 430px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 360px;
      gap: 24px;
      align-items: stretch;
    }

    .guide-title-panel {
      position: relative;
      overflow: hidden;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 42px;
      background:
        linear-gradient(125deg, rgba(217,170,74,.18), rgba(57,215,196,.07) 45%, rgba(255,255,255,.035)),
        linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.015));
      box-shadow: var(--shadow);
    }

    .guide-title-panel::after {
      content: "";
      position: absolute;
      right: -70px;
      top: 36px;
      width: 250px;
      height: 250px;
      border: 1px solid rgba(217,170,74,.16);
      transform: rotate(18deg);
      background: repeating-linear-gradient(45deg, rgba(217,170,74,.08) 0 8px, transparent 8px 18px);
    }

    .guide-title-panel > * {
      position: relative;
      z-index: 1;
    }

    .eyebrow {
      width: fit-content;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 18px;
      padding: 8px 11px;
      border: 1px solid rgba(57, 215, 196, .34);
      border-radius: 999px;
      color: var(--cyan);
      background: rgba(57, 215, 196, .08);
      font-size: 13px;
      font-weight: 800;
    }

    h1 {
      margin: 0;
      max-width: 760px;
      font-size: clamp(34px, 5vw, 60px);
      line-height: 1.08;
      font-weight: 950;
      letter-spacing: 0;
    }

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

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

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 30px;
    }

    .metric {
      padding: 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(255,255,255,.04);
    }

    .metric strong {
      display: block;
      color: var(--gold-2);
      font-size: 22px;
      line-height: 1.1;
      font-weight: 950;
    }

    .metric span {
      display: block;
      margin-top: 6px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
    }

    .notice-panel {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 18px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 24px;
      background: linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.02));
      box-shadow: var(--shadow-soft);
    }

    .notice-panel h2 {
      margin: 0;
      font-size: 24px;
      font-weight: 950;
    }

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

    .notice-list li {
      padding: 13px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(0,0,0,.14);
    }

    .notice-list strong {
      display: block;
      font-size: 14px;
    }

    .notice-list span {
      display: block;
      margin-top: 4px;
      color: var(--muted);
      font-size: 12px;
    }

    .download-strip {
      display: grid;
      gap: 10px;
      padding: 14px;
      border-radius: var(--radius);
      border: 1px solid rgba(57,215,196,.28);
      background: rgba(57,215,196,.07);
    }

    .download-strip small {
      color: var(--muted);
      font-weight: 700;
    }

    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.035);
      box-shadow: var(--shadow-soft);
    }

    .filter-tabs {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .filter-tabs a {
      padding: 9px 12px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      color: var(--muted);
      font-size: 13px;
      font-weight: 900;
      background: rgba(255,255,255,.035);
      transition: .2s ease;
    }

    .filter-tabs a:hover,
    .filter-tabs a:focus-visible,
    .filter-tabs a.active {
      color: #17120a;
      border-color: var(--gold);
      background: var(--gold);
      outline: none;
      transform: translateY(-1px);
    }

    .search-box {
      display: flex;
      align-items: center;
      min-width: 260px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: rgba(0,0,0,.16);
      overflow: hidden;
    }

    .search-box input {
      width: 100%;
      min-height: 42px;
      padding: 0 12px;
      color: var(--text);
      border: 0;
      outline: 0;
      background: transparent;
    }

    .search-box input::placeholder {
      color: var(--weak);
    }

    .search-box button {
      min-height: 42px;
      padding: 0 13px;
      color: #15120a;
      background: var(--gold);
      font-weight: 950;
      transition: .2s ease;
    }

    .search-box button:hover,
    .search-box button:focus-visible {
      background: var(--gold-2);
      outline: none;
    }

    .content-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 318px;
      gap: 24px;
      align-items: start;
      margin-top: 22px;
    }

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

    .guide-card {
      display: grid;
      grid-template-columns: 166px minmax(0, 1fr);
      gap: 18px;
      padding: 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: rgba(31, 33, 27, .84);
      box-shadow: var(--shadow-soft);
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }

    .guide-card:hover {
      transform: translateY(-3px);
      border-color: rgba(217, 170, 74, .36);
      background: rgba(38, 41, 31, .9);
    }

    .thumb {
      min-height: 132px;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
      background:
        linear-gradient(135deg, rgba(217,170,74,.3), rgba(57,215,196,.12)),
        repeating-linear-gradient(45deg, rgba(255,255,255,.06) 0 7px, transparent 7px 16px);
      position: relative;
    }

    .thumb::before {
      content: "";
      position: absolute;
      inset: 16px;
      border: 1px solid rgba(245,241,232,.2);
      border-radius: 6px;
    }

    .thumb::after {
      content: attr(data-label);
      position: absolute;
      left: 14px;
      bottom: 12px;
      padding: 6px 8px;
      border-radius: 999px;
      color: #15120a;
      background: var(--gold);
      font-size: 12px;
      font-weight: 950;
    }

    .card-body {
      min-width: 0;
    }

    .card-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 10px;
    }

    .guide-card h3 {
      margin: 0;
      font-size: 22px;
      line-height: 1.32;
      font-weight: 950;
    }

    .guide-card p {
      margin: 9px 0 0;
      color: var(--muted);
      font-size: 15px;
    }

    .card-foot {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: 14px;
      color: var(--weak);
      font-size: 13px;
      font-weight: 700;
    }

    .text-link {
      color: var(--cyan);
      font-weight: 950;
      transition: color .2s ease, transform .2s ease;
    }

    .text-link:hover,
    .text-link:focus-visible {
      color: var(--gold-2);
      outline: none;
    }

    .sidebar {
      display: grid;
      gap: 16px;
      position: sticky;
      top: 92px;
    }

    .side-card {
      padding: 18px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: rgba(31, 33, 27, .82);
      box-shadow: var(--shadow-soft);
    }

    .side-card h3 {
      margin: 0 0 12px;
      font-size: 18px;
      font-weight: 950;
    }

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

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

    .version-list li {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--border);
      color: var(--muted);
      font-size: 13px;
    }

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

    .version-list strong {
      color: var(--text);
    }

    .hot-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .hot-tags a {
      padding: 7px 9px;
      border: 1px solid var(--border);
      border-radius: 999px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 800;
      background: rgba(255,255,255,.035);
      transition: .2s ease;
    }

    .hot-tags a:hover,
    .hot-tags a:focus-visible {
      color: var(--cyan);
      border-color: rgba(57,215,196,.36);
      outline: none;
      transform: translateY(-1px);
    }

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

    .step-card {
      padding: 20px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
      box-shadow: var(--shadow-soft);
    }

    .step-number {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      border-radius: var(--radius);
      color: #15120a;
      background: var(--gold);
      font-weight: 950;
    }

    .step-card h3 {
      margin: 0;
      font-size: 18px;
      font-weight: 950;
    }

    .step-card p {
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 14px;
    }

    .feature-band {
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      background: rgba(0,0,0,.13);
    }

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

    .feature-card {
      padding: 22px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: rgba(31, 33, 27, .72);
    }

    .feature-card strong {
      display: block;
      color: var(--gold-2);
      font-size: 15px;
      margin-bottom: 9px;
    }

    .feature-card h3 {
      margin: 0;
      font-size: 20px;
      font-weight: 950;
    }

    .feature-card p {
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 14px;
    }

    .pagination {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
      margin-top: 24px;
    }

    .pagination a,
    .pagination span {
      min-width: 42px;
      min-height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0 13px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      color: var(--muted);
      background: rgba(255,255,255,.035);
      font-weight: 900;
      transition: .2s ease;
    }

    .pagination a:hover,
    .pagination a:focus-visible,
    .pagination .current {
      color: #15120a;
      border-color: var(--gold);
      background: var(--gold);
      outline: none;
      transform: translateY(-1px);
    }

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

    .faq-item {
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: rgba(31, 33, 27, .82);
      overflow: hidden;
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 18px 20px;
      cursor: pointer;
      font-weight: 950;
      list-style: none;
    }

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

    .faq-item summary::after {
      content: "+";
      width: 26px;
      height: 26px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      color: var(--cyan);
      transition: .2s ease;
    }

    .faq-item[open] summary::after {
      content: "−";
      color: #15120a;
      background: var(--gold);
      border-color: var(--gold);
    }

    .faq-item p {
      margin: 0;
      padding: 0 20px 18px;
      color: var(--muted);
    }

    .cta {
      padding: 40px;
      border: 1px solid var(--border-strong);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(125deg, rgba(217,170,74,.18), rgba(57,215,196,.08)),
        rgba(31, 33, 27, .9);
      box-shadow: var(--shadow);
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      align-items: center;
      gap: 22px;
    }

    .cta h2 {
      margin: 0;
      font-size: clamp(24px, 3vw, 38px);
      font-weight: 950;
      line-height: 1.18;
    }

    .cta p {
      margin: 10px 0 0;
      color: var(--muted);
      max-width: 740px;
    }

    .cta-actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .footer {
      padding: 54px 0 28px;
      border-top: 1px solid var(--border);
      background: rgba(10, 11, 9, .78);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .8fr .9fr 1fr;
      gap: 26px;
    }

    .footer h3,
    .footer h4 {
      margin: 0 0 12px;
      font-weight: 950;
    }

    .footer h3 {
      font-size: 20px;
    }

    .footer h4 {
      font-size: 15px;
      color: var(--gold-2);
    }

    .footer p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .footer ul {
      display: grid;
      gap: 8px;
      margin: 0;
      padding: 0;
      list-style: none;
      color: var(--muted);
      font-size: 14px;
    }

    .footer a {
      color: var(--muted);
      transition: color .2s ease;
    }

    .footer a:hover,
    .footer a:focus-visible {
      color: var(--cyan);
      outline: none;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      margin-top: 30px;
      padding-top: 18px;
      border-top: 1px solid var(--border);
      color: var(--weak);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .guide-hero,
      .content-layout,
      .cta {
        grid-template-columns: 1fr;
      }

      .sidebar {
        position: static;
        grid-template-columns: repeat(3, 1fr);
      }

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

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

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

      .nav-wrap {
        height: 66px;
      }

      .brand-text strong {
        max-width: 210px;
      }

      .nav-button {
        display: flex;
      }

      .main-nav {
        position: absolute;
        left: 14px;
        right: 14px;
        top: 74px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        padding: 12px;
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        background: rgba(17,18,15,.98);
        box-shadow: var(--shadow);
      }

      .nav-toggle:checked ~ .main-nav {
        display: flex;
      }

      .nav-toggle:checked + .nav-button span {
        background: transparent;
      }

      .nav-toggle:checked + .nav-button span::before {
        transform: translateY(2px) rotate(45deg);
      }

      .nav-toggle:checked + .nav-button span::after {
        transform: translateY(0) rotate(-45deg);
      }

      .main-nav a {
        padding: 12px;
      }

      .page-hero {
        padding-top: 28px;
      }

      .guide-title-panel {
        padding: 28px;
      }

      .hero-metrics,
      .sidebar,
      .steps-grid,
      .feature-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 40px 0;
      }

      .section-head {
        display: block;
      }

      .filter-bar {
        align-items: stretch;
      }

      .search-box {
        min-width: 100%;
      }

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

      .thumb {
        min-height: 160px;
      }

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

    @media (max-width: 520px) {
      .brand-mark {
        width: 36px;
        height: 36px;
      }

      .brand-text strong {
        max-width: 176px;
        font-size: 13px;
      }

      .brand-text span {
        font-size: 11px;
      }

      .guide-title-panel,
      .notice-panel,
      .cta {
        padding: 22px;
      }

      h1 {
        font-size: 32px;
      }

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

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

      .filter-tabs a {
        flex: 1 1 auto;
        justify-content: center;
        text-align: center;
      }

      .card-foot {
        display: grid;
      }

      .pagination a,
      .pagination span {
        min-width: 38px;
      }
    }

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