/* roulang page: index */
:root {
      --color-primary: #2563eb;
      --color-primary-dark: #1d4ed8;
      --color-primary-soft: #e8f0ff;
      --color-sky: #f4f8ff;
      --color-ice: #f8fbff;
      --color-cream: #fffaf0;
      --color-warm: #f59e0b;
      --color-text: #182033;
      --color-muted: #647086;
      --color-soft-text: #7c8799;
      --color-border: #dce5f2;
      --color-card: #ffffff;
      --color-footer: #101827;
      --shadow-sm: 0 8px 22px rgba(37, 99, 235, .08);
      --shadow-md: 0 16px 36px rgba(24, 32, 51, .12);
      --shadow-lg: 0 24px 60px rgba(30, 64, 175, .16);
      --radius-sm: 6px;
      --radius-md: 8px;
      --radius-lg: 14px;
      --space-section: 86px;
      --container: 1180px;
      --ease: all .22s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      color: var(--color-text);
      background: linear-gradient(180deg, #f7fbff 0%, #ffffff 42%, #f8fbff 100%);
      line-height: 1.68;
      letter-spacing: 0;
      text-rendering: optimizeLegibility;
    }

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

    a:hover,
    a:focus {
      color: var(--color-primary);
      outline: none;
    }

    button,
    input {
      font: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
    }

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

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

    .skip-link {
      position: absolute;
      left: -999px;
      top: 12px;
      z-index: 1000;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      background: var(--color-primary);
      color: #fff;
    }

    .skip-link:focus {
      left: 12px;
      color: #fff;
    }

    .topbar {
      position: sticky;
      top: 0;
      z-index: 99;
      background: rgba(255, 255, 255, .88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(220, 229, 242, .85);
    }

    .nav-shell {
      min-height: 76px;
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: max-content;
      font-weight: 800;
      color: var(--color-text);
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), #38bdf8);
      box-shadow: 0 12px 24px rgba(37, 99, 235, .24);
    }

    .brand-text {
      font-size: 17px;
      white-space: nowrap;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-left: auto;
    }

    .main-nav a {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 8px 13px;
      border-radius: 999px;
      color: var(--color-muted);
      font-size: 14px;
      font-weight: 650;
    }

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

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-left: 4px;
    }

    .command-search {
      width: 230px;
      height: 40px;
      display: flex;
      align-items: center;
      gap: 9px;
      padding: 0 12px;
      border: 1px solid var(--color-border);
      border-radius: 999px;
      background: #fff;
      color: var(--color-soft-text);
      box-shadow: var(--shadow-sm);
    }

    .command-search i {
      color: var(--color-primary);
      font-size: 13px;
    }

    .command-search input {
      width: 100%;
      min-width: 0;
      border: 0;
      outline: 0;
      background: transparent;
      color: var(--color-text);
      font-size: 13px;
    }

    .command-search input::placeholder {
      color: #95a0b3;
    }

    .kbd {
      padding: 2px 6px;
      border-radius: 6px;
      border: 1px solid var(--color-border);
      background: var(--color-sky);
      font-size: 11px;
      color: var(--color-muted);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 42px;
      padding: 11px 17px;
      border-radius: 8px;
      font-weight: 760;
      line-height: 1.1;
      transition: var(--ease);
      border: 1px solid transparent;
      user-select: none;
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), #1e40af);
      box-shadow: 0 14px 26px rgba(37, 99, 235, .24);
    }

    .btn-primary:hover,
    .btn-primary:focus {
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 18px 34px rgba(37, 99, 235, .3);
    }

    .btn-primary:active {
      transform: translateY(1px);
      box-shadow: 0 9px 18px rgba(37, 99, 235, .2);
    }

    .btn-secondary {
      color: var(--color-primary-dark);
      background: #fff;
      border-color: var(--color-border);
      box-shadow: var(--shadow-sm);
    }

    .btn-secondary:hover,
    .btn-secondary:focus {
      color: var(--color-primary-dark);
      border-color: #b7c8f3;
      transform: translateY(-1px);
      box-shadow: var(--shadow-md);
    }

    .btn-soft {
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      border-color: #cfe0ff;
    }

    .btn-soft:hover {
      background: #dceaff;
      color: var(--color-primary-dark);
    }

    .mobile-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 8px;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
    }

    main {
      overflow: hidden;
    }

    section {
      position: relative;
    }

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

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

    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 10px;
      margin-bottom: 13px;
      border-radius: 999px;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      font-size: 13px;
      font-weight: 760;
    }

    .section-title {
      margin: 0 0 12px;
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.16;
      font-weight: 850;
      color: var(--color-text);
    }

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

    .hero {
      padding: 72px 0 72px;
      background:
        radial-gradient(circle at 88% 12%, rgba(37, 99, 235, .13), transparent 28%),
        linear-gradient(135deg, #f8fbff 0%, #eef6ff 48%, #ffffff 100%);
      border-bottom: 1px solid rgba(220, 229, 242, .75);
    }

    .hero-grid {
      align-items: center;
    }

    .hero-copy {
      position: relative;
      z-index: 2;
      padding: 24px 0;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      color: var(--color-primary-dark);
      font-size: 13px;
      font-weight: 760;
      margin-bottom: 18px;
    }

    h1 {
      margin: 0 0 20px;
      font-size: clamp(34px, 5.2vw, 62px);
      line-height: 1.08;
      font-weight: 900;
      color: #111827;
      letter-spacing: 0;
    }

    .hero-desc {
      max-width: 610px;
      margin: 0 0 26px;
      color: var(--color-muted);
      font-size: 17px;
      line-height: 1.8;
    }

    .hero-actions,
    .download-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
      margin-bottom: 26px;
    }

    .kpi-row {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 620px;
    }

    .kpi-card {
      padding: 16px;
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, .82);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
    }

    .kpi-value {
      display: block;
      font-size: 23px;
      font-weight: 900;
      color: var(--color-primary-dark);
      line-height: 1.15;
    }

    .kpi-label {
      display: block;
      margin-top: 5px;
      color: var(--color-soft-text);
      font-size: 13px;
    }

    .hero-visual {
      position: relative;
      min-height: 500px;
      transform: rotate(-1.6deg) translateX(12px);
    }

    .dp-cover {
      position: absolute;
      inset: 18px 0 0 34px;
      border-radius: 18px;
      overflow: hidden;
      background: #fff;
      border: 1px solid rgba(190, 205, 230, .9);
      box-shadow: var(--shadow-lg);
    }

    .cover-top {
      height: 58px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 18px;
      background: linear-gradient(90deg, #f6faff, #eef5ff);
      border-bottom: 1px solid var(--color-border);
    }

    .window-dots {
      display: flex;
      gap: 7px;
    }

    .window-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #b7c8f3;
    }

    .cover-title {
      color: var(--color-muted);
      font-size: 13px;
      font-weight: 760;
    }

    .cover-body {
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      gap: 18px;
      padding: 22px;
      background:
        linear-gradient(145deg, rgba(37, 99, 235, .07), transparent 38%),
        #fff;
    }

    .cover-panel {
      border-radius: 12px;
      background: var(--color-sky);
      border: 1px solid var(--color-border);
      padding: 18px;
      min-height: 372px;
    }

    .cover-panel h3,
    .cover-stack h3 {
      margin: 0 0 14px;
      font-size: 16px;
      font-weight: 850;
    }

    .check-line {
      display: flex;
      align-items: flex-start;
      gap: 9px;
      padding: 11px 0;
      border-bottom: 1px solid rgba(220, 229, 242, .9);
      color: var(--color-muted);
      font-size: 14px;
    }

    .check-line:last-child {
      border-bottom: 0;
    }

    .check-line i {
      color: var(--color-primary);
      margin-top: 4px;
    }

    .cover-stack {
      display: grid;
      gap: 14px;
    }

    .matrix-card {
      padding: 16px;
      border-radius: 12px;
      border: 1px solid var(--color-border);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .matrix-card strong {
      display: block;
      margin-bottom: 6px;
      font-size: 15px;
      color: var(--color-text);
    }

    .matrix-card p {
      margin: 0;
      color: var(--color-muted);
      font-size: 13px;
    }

    .floating-note {
      position: absolute;
      right: -2px;
      bottom: 22px;
      width: 230px;
      padding: 16px;
      border-radius: 14px;
      background: #fff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-lg);
      transform: rotate(1.6deg);
    }

    .floating-note span {
      display: block;
      color: var(--color-soft-text);
      font-size: 12px;
      margin-bottom: 5px;
    }

    .floating-note strong {
      display: block;
      color: var(--color-text);
      font-size: 16px;
      line-height: 1.35;
    }

    .slider-section {
      background: #fff;
    }

    .screenshot-stage {
      padding: 20px;
      border-radius: 16px;
      background: linear-gradient(135deg, #f8fbff, #eef5ff);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-md);
    }

    .screen-frame {
      position: relative;
      aspect-ratio: 16 / 8.2;
      border-radius: 12px;
      overflow: hidden;
      background: #fff;
      border: 1px solid var(--color-border);
    }

    .slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      transform: translateX(24px);
      transition: opacity .35s ease, transform .35s ease;
      padding: 28px;
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 24px;
      align-items: stretch;
      background:
        linear-gradient(120deg, rgba(37, 99, 235, .08), transparent 42%),
        #fff;
    }

    .slide.active {
      opacity: 1;
      transform: translateX(0);
      z-index: 1;
    }

    .slide-copy h3 {
      margin: 0 0 12px;
      font-size: 25px;
      font-weight: 850;
    }

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

    .ui-lines {
      display: grid;
      gap: 10px;
    }

    .ui-line {
      height: 12px;
      border-radius: 999px;
      background: #dbeafe;
    }

    .ui-line.short {
      width: 70%;
      background: #fdecc8;
    }

    .ui-line.mid {
      width: 84%;
    }

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

    .mini-tile {
      min-height: 96px;
      padding: 14px;
      border-radius: 12px;
      background: var(--color-sky);
      border: 1px solid var(--color-border);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .mini-tile i {
      color: var(--color-primary);
      font-size: 19px;
    }

    .mini-tile strong {
      font-size: 14px;
    }

    .slider-controls {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-top: 18px;
    }

    .pager {
      display: flex;
      gap: 8px;
    }

    .pager button {
      width: 34px;
      height: 8px;
      border-radius: 999px;
      background: #cbd8ee;
      transition: var(--ease);
    }

    .pager button.active {
      width: 54px;
      background: var(--color-primary);
    }

    .arrow-group {
      display: flex;
      gap: 8px;
    }

    .icon-btn {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      display: grid;
      place-items: center;
      color: var(--color-primary-dark);
      background: #fff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
    }

    .icon-btn:hover,
    .icon-btn:focus {
      transform: translateY(-1px);
      box-shadow: var(--shadow-md);
    }

    .requirements {
      background: var(--color-ice);
    }

    .require-grid,
    .directory-grid,
    .value-grid,
    .review-grid {
      display: grid;
      gap: 18px;
    }

    .require-grid {
      grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .info-card,
    .directory-card,
    .value-card,
    .review-card,
    .news-panel,
    .lead-card,
    .faq-item {
      border-radius: var(--radius-md);
      background: var(--color-card);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
    }

    .info-card:hover,
    .directory-card:hover,
    .value-card:hover,
    .review-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: #bfd0f7;
    }

    .info-card {
      padding: 18px;
    }

    .info-icon {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 10px;
      color: var(--color-primary);
      background: var(--color-primary-soft);
      margin-bottom: 14px;
    }

    .info-card h3 {
      margin: 0 0 8px;
      font-size: 17px;
      font-weight: 850;
    }

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

    .directory {
      background: #fff;
    }

    .directory-layout {
      display: grid;
      grid-template-columns: .86fr 1.14fr;
      gap: 28px;
      align-items: start;
    }

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

    .entry-button {
      min-height: 76px;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--color-border);
      background: #fff;
      display: flex;
      align-items: center;
      gap: 12px;
      box-shadow: var(--shadow-sm);
    }

    .entry-button:hover {
      color: var(--color-primary-dark);
      transform: translateY(-2px);
      border-color: #b7c8f3;
      box-shadow: var(--shadow-md);
    }

    .entry-button i {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      display: grid;
      place-items: center;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      flex: 0 0 auto;
    }

    .entry-button strong {
      display: block;
      font-size: 15px;
      line-height: 1.2;
    }

    .entry-button span {
      display: block;
      margin-top: 4px;
      color: var(--color-soft-text);
      font-size: 12px;
    }

    .directory-card {
      padding: 22px;
    }

    .directory-card h3 {
      margin: 0 0 10px;
      font-size: 22px;
      font-weight: 850;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 16px 0 18px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 28px;
      padding: 5px 10px;
      border-radius: 999px;
      background: var(--color-sky);
      border: 1px solid var(--color-border);
      color: var(--color-muted);
      font-size: 12px;
      font-weight: 700;
    }

    .value-section {
      background:
        linear-gradient(180deg, #ffffff 0%, #f5f9ff 100%);
    }

    .value-grid {
      grid-template-columns: 1.1fr .9fr 1fr;
    }

    .value-card {
      padding: 24px;
      min-height: 226px;
    }

    .value-card.featured {
      background: linear-gradient(135deg, #eff6ff, #fffaf0);
    }

    .value-card h3 {
      margin: 0 0 12px;
      font-size: 21px;
      font-weight: 850;
    }

    .value-card p,
    .review-card p,
    .lead-card p {
      margin: 0;
      color: var(--color-muted);
      font-size: 15px;
    }

    .value-list {
      display: grid;
      gap: 10px;
      margin-top: 18px;
    }

    .value-list span {
      display: flex;
      align-items: center;
      gap: 9px;
      color: var(--color-text);
      font-size: 14px;
    }

    .value-list i {
      color: var(--color-primary);
    }

    .news-section {
      background: #fff;
    }

    .news-layout {
      display: grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 24px;
      align-items: stretch;
    }

    .news-panel {
      padding: 8px;
    }

    .news-list {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .news-list li + li {
      border-top: 1px solid var(--color-border);
    }

    .news-link {
      display: grid;
      grid-template-columns: 86px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border-radius: 8px;
    }

    .news-link:hover {
      background: var(--color-sky);
    }

    .news-date {
      color: var(--color-primary-dark);
      font-weight: 850;
      font-size: 14px;
    }

    .news-link strong {
      display: block;
      font-size: 16px;
      margin-bottom: 5px;
    }

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

    .recommend-box {
      border-radius: var(--radius-md);
      padding: 24px;
      background: linear-gradient(135deg, #1d4ed8, #38bdf8);
      color: #fff;
      box-shadow: var(--shadow-lg);
    }

    .recommend-box h3 {
      margin: 0 0 12px;
      font-size: 24px;
      font-weight: 850;
    }

    .recommend-box p {
      margin: 0 0 18px;
      color: rgba(255, 255, 255, .86);
    }

    .recommend-box .tag {
      background: rgba(255, 255, 255, .14);
      border-color: rgba(255, 255, 255, .28);
      color: #fff;
    }

    .update-section {
      background: var(--color-ice);
    }

    .timeline {
      display: grid;
      gap: 14px;
      max-width: 880px;
    }

    .timeline-item {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 18px;
      padding: 18px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .timeline-time {
      color: var(--color-primary-dark);
      font-weight: 850;
    }

    .timeline-item h3 {
      margin: 0 0 5px;
      font-size: 17px;
      font-weight: 850;
    }

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

    .review-section {
      background: #fff;
    }

    .review-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .review-card {
      padding: 22px;
    }

    .reviewer {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      color: #fff;
      font-weight: 850;
      background: linear-gradient(135deg, var(--color-primary), var(--color-warm));
    }

    .reviewer strong {
      display: block;
      font-size: 15px;
    }

    .reviewer span {
      display: block;
      color: var(--color-soft-text);
      font-size: 12px;
    }

    .download-section {
      background:
        radial-gradient(circle at 8% 18%, rgba(245, 158, 11, .18), transparent 24%),
        linear-gradient(135deg, #eef5ff 0%, #ffffff 52%, #fffaf0 100%);
    }

    .download-wrap {
      display: grid;
      grid-template-columns: 1fr .82fr;
      gap: 24px;
      align-items: stretch;
    }

    .lead-card {
      padding: 30px;
    }

    .lead-card h2 {
      margin: 0 0 12px;
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.15;
      font-weight: 900;
    }

    .download-meta {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin: 22px 0;
    }

    .meta-pill {
      padding: 13px;
      border-radius: var(--radius-md);
      background: var(--color-sky);
      border: 1px solid var(--color-border);
    }

    .meta-pill strong {
      display: block;
      font-size: 18px;
      color: var(--color-primary-dark);
    }

    .meta-pill span {
      color: var(--color-soft-text);
      font-size: 12px;
    }

    .lead-form {
      padding: 24px;
      border-radius: var(--radius-md);
      background: #fff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-md);
    }

    .lead-form h3 {
      margin: 0 0 14px;
      font-size: 21px;
      font-weight: 850;
    }

    .form-field {
      margin-bottom: 13px;
    }

    .form-field label {
      display: block;
      margin-bottom: 7px;
      font-size: 13px;
      font-weight: 760;
      color: var(--color-text);
    }

    .form-field input {
      height: 44px;
      width: 100%;
      padding: 0 13px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--color-border);
      background: var(--color-ice);
      box-shadow: none;
      transition: var(--ease);
    }

    .form-field input:focus {
      border-color: var(--color-primary);
      background: #fff;
      box-shadow: 0 0 0 4px rgba(37, 99, 235, .12);
    }

    .form-note {
      margin: 12px 0 0;
      color: var(--color-soft-text);
      font-size: 12px;
      line-height: 1.6;
    }

    .faq-section {
      background: #fff;
    }

    .faq-list {
      display: grid;
      gap: 12px;
      max-width: 900px;
    }

    .faq-item {
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      min-height: 58px;
      padding: 16px 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      background: #fff;
      color: var(--color-text);
      font-weight: 850;
      text-align: left;
    }

    .faq-question i {
      color: var(--color-primary);
      transition: var(--ease);
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: var(--color-muted);
      font-size: 15px;
    }

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

    .faq-item.open .faq-question i {
      transform: rotate(180deg);
    }

    .site-footer {
      background: var(--color-footer);
      color: rgba(255, 255, 255, .82);
      padding: 44px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: 28px;
      align-items: start;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
      color: #fff;
      font-weight: 850;
    }

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

    .footer-copy {
      margin: 0;
      max-width: 520px;
      color: rgba(255, 255, 255, .68);
      font-size: 14px;
    }

    .footer-col h3 {
      margin: 0 0 12px;
      color: #fff;
      font-size: 15px;
      font-weight: 850;
    }

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

    .footer-links a {
      color: rgba(255, 255, 255, .68);
      font-size: 14px;
    }

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

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      margin-top: 34px;
      padding-top: 22px;
      border-top: 1px solid rgba(255, 255, 255, .12);
      color: rgba(255, 255, 255, .55);
      font-size: 13px;
    }

    .focus-ring:focus-visible,
    .btn:focus-visible,
    .icon-btn:focus-visible,
    .faq-question:focus-visible,
    .mobile-toggle:focus-visible {
      outline: 3px solid rgba(37, 99, 235, .24);
      outline-offset: 2px;
    }

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

      .nav-shell {
        flex-wrap: wrap;
        padding: 14px 0;
      }

      .main-nav {
        order: 3;
        width: 100%;
        margin-left: 0;
        overflow-x: auto;
        padding-bottom: 2px;
      }

      .nav-actions {
        margin-left: auto;
      }

      .command-search {
        width: 210px;
      }

      .hero-visual {
        min-height: 460px;
        transform: none;
      }

      .dp-cover {
        inset: 12px 0 0 0;
      }

      .floating-note {
        right: 12px;
      }

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

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

      .value-card.featured {
        grid-column: span 2;
      }
    }

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

      .mobile-toggle {
        display: grid;
        place-items: center;
        margin-left: auto;
      }

      .nav-actions {
        width: 100%;
        order: 4;
        display: none;
      }

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

      .command-search {
        flex: 1;
        width: auto;
      }

      .main-nav {
        display: none;
        flex-direction: column;
        align-items: stretch;
        border-top: 1px solid var(--color-border);
        padding-top: 10px;
      }

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

      .main-nav a {
        border-radius: 8px;
      }

      .hero {
        padding: 48px 0 56px;
      }

      .hero-copy {
        padding: 0 0 18px;
      }

      .kpi-row,
      .download-meta {
        grid-template-columns: 1fr;
      }

      .hero-visual {
        min-height: 520px;
      }

      .cover-body,
      .slide,
      .directory-layout,
      .news-layout,
      .download-wrap,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .screen-frame {
        aspect-ratio: 1 / 1.12;
      }

      .slide-board,
      .entry-matrix,
      .require-grid,
      .value-grid,
      .review-grid {
        grid-template-columns: 1fr;
      }

      .value-card.featured {
        grid-column: auto;
      }

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

      .news-date {
        grid-column: 1 / -1;
      }

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

      .copyright {
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      h1 {
        font-size: 34px;
      }

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

      .hero-actions,
      .download-actions,
      .nav-actions.open {
        align-items: stretch;
        flex-direction: column;
      }

      .btn,
      .command-search {
        width: 100%;
      }

      .hero-visual {
        min-height: 610px;
      }

      .dp-cover {
        position: relative;
        inset: auto;
      }

      .floating-note {
        position: relative;
        right: auto;
        bottom: auto;
        width: 100%;
        margin-top: 14px;
      }

      .cover-body {
        padding: 14px;
      }

      .cover-panel {
        min-height: auto;
      }

      .slide {
        padding: 18px;
      }

      .slider-controls {
        align-items: flex-start;
        flex-direction: column;
      }
    }

/* roulang page: category1 */
:root {
      --blue-700: #1457d9;
      --blue-600: #1d6cf2;
      --blue-500: #3d86ff;
      --blue-100: #eaf3ff;
      --blue-50: #f5f9ff;
      --ink-900: #172033;
      --ink-700: #334155;
      --ink-500: #64748b;
      --ink-300: #9aa7b8;
      --line: #dbe5f2;
      --paper: #ffffff;
      --warm: #fff8ee;
      --warm-line: #f3dfbd;
      --success: #18a058;
      --warning: #d98b16;
      --danger: #d94a4a;
      --shadow-sm: 0 10px 24px rgba(20, 87, 217, .08);
      --shadow-md: 0 18px 45px rgba(23, 32, 51, .12);
      --radius: 8px;
      --radius-lg: 14px;
      --container: 1180px;
      --ease: all .22s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      color: var(--ink-900);
      background:
        radial-gradient(circle at 20% 0%, rgba(61, 134, 255, .12), transparent 34%),
        linear-gradient(180deg, #f7fbff 0%, #ffffff 46%, #f8fbff 100%);
      line-height: 1.65;
      letter-spacing: 0;
      overflow-x: hidden;
    }

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

    a:hover,
    a:focus {
      color: var(--blue-700);
    }

    button,
    input,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

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

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

    .skip-link {
      position: absolute;
      left: 16px;
      top: -80px;
      z-index: 1000;
      padding: 10px 14px;
      background: var(--ink-900);
      color: #fff;
      border-radius: var(--radius);
    }

    .skip-link:focus {
      top: 16px;
      color: #fff;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, .9);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(219, 229, 242, .86);
    }

    .nav-shell {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: max-content;
      font-weight: 800;
      color: var(--ink-900);
    }

    .brand-mark {
      width: 34px;
      height: 34px;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
      box-shadow: 0 10px 22px rgba(29, 108, 242, .24);
    }

    .brand span:last-child {
      white-space: nowrap;
      letter-spacing: 0;
    }

    .main-nav {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 6px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .main-nav a {
      display: inline-flex;
      align-items: center;
      min-height: 36px;
      padding: 0 15px;
      border-radius: 999px;
      color: var(--ink-700);
      font-size: 14px;
      font-weight: 700;
    }

    .main-nav a:hover {
      background: var(--blue-50);
      color: var(--blue-700);
    }

    .main-nav a.active {
      color: #fff;
      background: var(--blue-700);
      box-shadow: 0 8px 18px rgba(20, 87, 217, .2);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 10px;
      min-width: 330px;
    }

    .command-search {
      height: 40px;
      width: 198px;
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 0 12px;
      color: var(--ink-500);
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #fff;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .75);
      font-size: 13px;
    }

    .command-search kbd {
      margin-left: auto;
      padding: 1px 7px;
      border: 1px solid var(--line);
      border-bottom-width: 2px;
      border-radius: 6px;
      background: #f8fafc;
      color: var(--ink-500);
      font-size: 12px;
      font-family: inherit;
    }

    .quick-link {
      width: 40px;
      height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--ink-700);
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #fff;
    }

    .quick-link:hover {
      transform: translateY(-1px);
      border-color: rgba(29, 108, 242, .38);
      box-shadow: var(--shadow-sm);
    }

    .btn {
      min-height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      padding: 0 18px;
      border: 1px solid transparent;
      border-radius: 10px;
      font-weight: 800;
      line-height: 1;
      transition: var(--ease);
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
      box-shadow: 0 12px 24px rgba(29, 108, 242, .24);
    }

    .btn-primary:hover,
    .btn-primary:focus {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 16px 32px rgba(29, 108, 242, .3);
    }

    .btn-secondary {
      color: var(--blue-700);
      background: #fff;
      border-color: rgba(29, 108, 242, .28);
    }

    .btn-secondary:hover,
    .btn-secondary:focus {
      background: var(--blue-50);
      border-color: var(--blue-500);
      transform: translateY(-1px);
    }

    .btn-ghost {
      color: var(--ink-700);
      background: #f8fbff;
      border-color: var(--line);
    }

    .btn-ghost:hover {
      color: var(--blue-700);
      background: #fff;
      border-color: rgba(29, 108, 242, .3);
    }

    .mobile-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #fff;
      color: var(--ink-900);
    }

    .page-hero {
      padding: 68px 0 36px;
    }

    .hero-card {
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(219, 229, 242, .95);
      border-radius: 18px;
      background: linear-gradient(135deg, rgba(255, 255, 255, .96), rgba(245, 249, 255, .96));
      box-shadow: var(--shadow-md);
    }

    .hero-inner {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
      gap: 34px;
      align-items: stretch;
      padding: 34px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      margin-bottom: 14px;
      padding: 6px 10px;
      border: 1px solid rgba(29, 108, 242, .18);
      border-radius: 999px;
      background: var(--blue-100);
      color: var(--blue-700);
      font-size: 13px;
      font-weight: 800;
    }

    h1,
    h2,
    h3 {
      margin: 0;
      color: var(--ink-900);
      line-height: 1.18;
      letter-spacing: 0;
    }

    h1 {
      max-width: 720px;
      font-size: clamp(34px, 5vw, 56px);
      font-weight: 900;
    }

    .hero-copy {
      max-width: 680px;
      margin: 16px 0 24px;
      color: var(--ink-700);
      font-size: 17px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 22px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 620px;
    }

    .metric {
      padding: 14px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .metric strong {
      display: block;
      color: var(--blue-700);
      font-size: 22px;
      line-height: 1.15;
    }

    .metric span {
      display: block;
      margin-top: 4px;
      color: var(--ink-500);
      font-size: 13px;
    }

    .demo-panel {
      border: 1px solid var(--line);
      border-radius: 14px;
      background: #fff;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .demo-top {
      min-height: 54px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      padding: 14px 16px;
      border-bottom: 1px solid var(--line);
      background: #f8fbff;
    }

    .demo-title {
      display: flex;
      align-items: center;
      gap: 9px;
      font-weight: 850;
    }

    .status-dot {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--success);
      box-shadow: 0 0 0 4px rgba(24, 160, 88, .12);
    }

    .demo-body {
      padding: 16px;
    }

    .demo-search {
      display: flex;
      align-items: center;
      gap: 10px;
      min-height: 46px;
      padding: 0 13px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #fff;
      color: var(--ink-500);
    }

    .demo-row {
      display: grid;
      grid-template-columns: 42px 1fr auto;
      gap: 12px;
      align-items: center;
      margin-top: 12px;
      padding: 12px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: linear-gradient(180deg, #fff, #fbfdff);
      transition: var(--ease);
    }

    .demo-row:hover {
      transform: translateY(-1px);
      box-shadow: var(--shadow-sm);
    }

    .demo-icon {
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      color: var(--blue-700);
      background: var(--blue-100);
    }

    .demo-row strong {
      display: block;
      color: var(--ink-900);
      font-size: 15px;
      line-height: 1.25;
    }

    .demo-row small {
      display: block;
      margin-top: 4px;
      color: var(--ink-500);
      font-size: 12px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 26px;
      padding: 0 9px;
      border-radius: 999px;
      background: var(--blue-100);
      color: var(--blue-700);
      font-size: 12px;
      font-weight: 800;
      white-space: nowrap;
    }

    main {
      padding-bottom: 80px;
    }

    .section {
      padding: 42px 0;
    }

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

    .section-head h2 {
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 900;
    }

    .section-head p {
      max-width: 600px;
      margin: 8px 0 0;
      color: var(--ink-500);
    }

    .toolbar-card {
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: rgba(255, 255, 255, .92);
      box-shadow: var(--shadow-sm);
    }

    .search-filter {
      display: grid;
      grid-template-columns: minmax(220px, 1fr) 160px 160px auto;
      gap: 12px;
      align-items: center;
    }

    .field {
      position: relative;
    }

    .field i {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--ink-300);
      pointer-events: none;
    }

    .field input,
    .field select {
      width: 100%;
      height: 46px;
      margin: 0;
      padding: 0 14px 0 40px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #fff;
      color: var(--ink-900);
      box-shadow: none;
    }

    .field select {
      padding-left: 14px;
      color: var(--ink-700);
      appearance: none;
      background-image: linear-gradient(45deg, transparent 50%, var(--ink-500) 50%), linear-gradient(135deg, var(--ink-500) 50%, transparent 50%);
      background-position: calc(100% - 18px) 19px, calc(100% - 13px) 19px;
      background-size: 5px 5px, 5px 5px;
      background-repeat: no-repeat;
    }

    .field input:focus,
    .field select:focus {
      border-color: var(--blue-500);
      outline: 3px solid rgba(61, 134, 255, .16);
      box-shadow: none;
    }

    .quick-filters,
    .sort-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
    }

    .quick-filters {
      margin-top: 14px;
    }

    .sort-row {
      justify-content: space-between;
      margin-top: 18px;
      padding-top: 16px;
      border-top: 1px solid var(--line);
    }

    .filter-chip {
      min-height: 34px;
      padding: 0 12px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: #fff;
      color: var(--ink-700);
      font-size: 13px;
      font-weight: 750;
      transition: var(--ease);
    }

    .filter-chip:hover,
    .filter-chip.active {
      color: var(--blue-700);
      border-color: rgba(29, 108, 242, .4);
      background: var(--blue-50);
    }

    .result-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
      margin-top: 22px;
    }

    .result-card {
      display: flex;
      flex-direction: column;
      min-height: 318px;
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
    }

    .result-card:hover {
      transform: translateY(-3px);
      border-color: rgba(29, 108, 242, .34);
      box-shadow: var(--shadow-md);
    }

    .card-visual {
      position: relative;
      min-height: 112px;
      margin-bottom: 15px;
      overflow: hidden;
      border-radius: var(--radius);
      background:
        linear-gradient(135deg, rgba(29, 108, 242, .9), rgba(84, 160, 255, .78)),
        repeating-linear-gradient(90deg, rgba(255, 255, 255, .18) 0 1px, transparent 1px 26px);
    }

    .card-visual::after {
      content: "";
      position: absolute;
      inset: 18px;
      border: 1px solid rgba(255, 255, 255, .35);
      border-radius: 8px;
    }

    .visual-lines {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      display: grid;
      gap: 8px;
      z-index: 1;
    }

    .visual-lines span {
      height: 8px;
      border-radius: 99px;
      background: rgba(255, 255, 255, .72);
    }

    .visual-lines span:nth-child(2) {
      width: 68%;
    }

    .visual-lines span:nth-child(3) {
      width: 46%;
    }

    .result-card h3 {
      font-size: 19px;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .result-card p {
      margin: 0;
      color: var(--ink-500);
      font-size: 14px;
      flex: 1;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 14px 0 16px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 26px;
      padding: 0 9px;
      border-radius: 999px;
      background: #f4f7fb;
      color: var(--ink-700);
      font-size: 12px;
      font-weight: 750;
    }

    .card-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: auto;
    }

    .card-actions .btn {
      min-height: 38px;
      padding: 0 13px;
      font-size: 13px;
      border-radius: 9px;
      flex: 1;
    }

    .info-band {
      display: grid;
      grid-template-columns: 1fr 1.25fr;
      gap: 18px;
      align-items: stretch;
    }

    .panel {
      padding: 22px;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .panel h2 {
      margin-bottom: 10px;
      font-size: 26px;
      font-weight: 900;
    }

    .panel p {
      margin: 0;
      color: var(--ink-500);
    }

    .requirement-list {
      display: grid;
      gap: 10px;
      margin-top: 18px;
    }

    .requirement-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 14px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #fbfdff;
    }

    .requirement-item strong {
      color: var(--ink-900);
      font-size: 14px;
    }

    .requirement-item span {
      color: var(--ink-500);
      font-size: 13px;
      text-align: right;
    }

    .process-list {
      counter-reset: step;
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }

    .process-item {
      position: relative;
      display: grid;
      grid-template-columns: 42px 1fr;
      gap: 12px;
      align-items: start;
      padding: 14px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #fbfdff;
    }

    .process-item::before {
      counter-increment: step;
      content: counter(step);
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      background: var(--blue-100);
      color: var(--blue-700);
      font-weight: 900;
    }

    .process-item strong {
      display: block;
      margin-bottom: 4px;
      color: var(--ink-900);
    }

    .process-item span {
      color: var(--ink-500);
      font-size: 14px;
    }

    .pagination-block {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-top: 22px;
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .page-buttons {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .page-btn {
      width: 38px;
      height: 38px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--line);
      border-radius: 9px;
      background: #fff;
      color: var(--ink-700);
      font-weight: 800;
      transition: var(--ease);
    }

    .page-btn:hover,
    .page-btn.active {
      color: #fff;
      border-color: var(--blue-700);
      background: var(--blue-700);
    }

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

    .state-card {
      padding: 20px;
      border: 1px dashed rgba(29, 108, 242, .36);
      border-radius: var(--radius-lg);
      background: #fff;
    }

    .state-card .state-icon {
      width: 44px;
      height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 12px;
      border-radius: 10px;
      color: var(--blue-700);
      background: var(--blue-100);
    }

    .state-card h3 {
      margin-bottom: 8px;
      font-size: 20px;
      font-weight: 900;
    }

    .state-card p {
      margin: 0;
      color: var(--ink-500);
    }

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

    .review-card {
      padding: 20px;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .review-head {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }

    .avatar {
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      color: #fff;
      background: linear-gradient(135deg, var(--blue-700), #7ab4ff);
      font-weight: 900;
    }

    .review-head strong {
      display: block;
      line-height: 1.2;
    }

    .review-head span {
      color: var(--ink-500);
      font-size: 13px;
    }

    .review-card p {
      margin: 0;
      color: var(--ink-700);
      font-size: 14px;
    }

    .faq-wrap {
      max-width: 860px;
      margin: 0 auto;
    }

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

    .faq-item + .faq-item {
      margin-top: 12px;
    }

    .faq-question {
      width: 100%;
      min-height: 58px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 0 18px;
      border: 0;
      background: #fff;
      color: var(--ink-900);
      font-weight: 900;
      text-align: left;
    }

    .faq-question i {
      color: var(--blue-700);
      transition: var(--ease);
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: var(--ink-500);
    }

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

    .faq-item.open .faq-question i {
      transform: rotate(180deg);
    }

    .cta-section {
      padding: 54px 0 74px;
    }

    .cta-card {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
      padding: 30px;
      border: 1px solid rgba(29, 108, 242, .22);
      border-radius: 18px;
      background:
        linear-gradient(135deg, rgba(234, 243, 255, .96), rgba(255, 248, 238, .92)),
        #fff;
      box-shadow: var(--shadow-md);
    }

    .cta-card h2 {
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 900;
    }

    .cta-card p {
      max-width: 700px;
      margin: 10px 0 0;
      color: var(--ink-700);
    }

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

    .site-footer {
      padding: 44px 0 28px;
      border-top: 1px solid var(--line);
      background: #f7fbff;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr .8fr .8fr;
      gap: 34px;
      margin-bottom: 26px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
      color: var(--ink-900);
      font-weight: 900;
    }

    .footer-copy {
      max-width: 440px;
      margin: 0;
      color: var(--ink-500);
      font-size: 14px;
    }

    .footer-col h3 {
      margin: 0 0 12px;
      font-size: 15px;
      font-weight: 900;
    }

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

    .footer-links a {
      color: var(--ink-500);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--blue-700);
      transform: translateX(2px);
    }

    .copyright {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      color: var(--ink-500);
      font-size: 13px;
    }

    .hide {
      display: none !important;
    }

    @media (max-width: 1024px) {
      .nav-shell {
        flex-wrap: wrap;
        padding: 14px 0;
      }

      .main-nav {
        order: 3;
        width: 100%;
        justify-content: flex-start;
        overflow-x: auto;
      }

      .nav-actions {
        min-width: 0;
      }

      .command-search {
        width: 168px;
      }

      .hero-inner {
        grid-template-columns: 1fr;
      }

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

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

      .search-filter {
        grid-template-columns: 1fr 1fr;
      }

      .search-filter .btn {
        grid-column: span 2;
      }
    }

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

      .nav-actions {
        width: 100%;
        justify-content: space-between;
      }

      .command-search {
        flex: 1;
        width: auto;
      }

      .hero-inner {
        padding: 24px;
      }

      .hero-metrics,
      .result-grid,
      .reviews,
      .state-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .section-head {
        display: block;
      }

      .search-filter {
        grid-template-columns: 1fr;
      }

      .search-filter .btn {
        grid-column: auto;
      }

      .sort-row,
      .pagination-block,
      .cta-card,
      .copyright {
        align-items: flex-start;
        flex-direction: column;
      }

      .cta-card {
        display: block;
      }

      .cta-actions {
        justify-content: flex-start;
        margin-top: 18px;
      }
    }

    @media (max-width: 520px) {
      .brand span:last-child {
        max-width: 178px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .quick-link {
        display: none;
      }

      .main-nav a {
        padding: 0 12px;
      }

      .page-hero {
        padding-top: 34px;
      }

      h1 {
        font-size: 32px;
      }

      .hero-copy {
        font-size: 15px;
      }

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

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

      .demo-row {
        grid-template-columns: 38px 1fr;
      }

      .demo-row .badge {
        grid-column: 1 / -1;
        width: fit-content;
      }

      .requirement-item {
        align-items: flex-start;
        flex-direction: column;
      }

      .requirement-item span {
        text-align: left;
      }
    }