/* roulang page: index */
:root {
      --primary: #3f8cff;
      --primary-dark: #2f72d6;
      --primary-soft: #eaf3ff;
      --accent: #19c6d4;
      --accent-soft: #e7fbfd;
      --warning: #ffb454;
      --warning-soft: #fff6e7;
      --bg: #f6faff;
      --surface: #ffffff;
      --surface-soft: #f0f7ff;
      --text: #172033;
      --muted: #66758f;
      --weak: #91a1b7;
      --border: #dce8f7;
      --border-strong: #bed4ef;
      --shadow-sm: 0 8px 24px rgba(45, 97, 152, .08);
      --shadow-md: 0 16px 42px rgba(45, 97, 152, .13);
      --shadow-lg: 0 24px 70px rgba(45, 97, 152, .17);
      --radius-sm: 12px;
      --radius-md: 18px;
      --radius-lg: 28px;
      --radius-xl: 36px;
      --container: 1180px;
      --nav-h: 86px;
      --ease: all .25s ease;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(63, 140, 255, .12), transparent 28%),
        radial-gradient(circle at 88% 18%, rgba(25, 198, 212, .12), transparent 24%),
        linear-gradient(180deg, #fbfdff 0%, var(--bg) 48%, #ffffff 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

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

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

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

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

    button:focus-visible,
    a:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible {
      outline: 3px solid rgba(63, 140, 255, .28);
      outline-offset: 3px;
      border-radius: 10px;
    }

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

    .section {
      padding: 86px 0;
      position: relative;
    }

    .section-tight {
      padding: 58px 0;
    }

    .section-band {
      background: linear-gradient(180deg, rgba(240, 247, 255, .72), rgba(255, 255, 255, .88));
      border-top: 1px solid rgba(220, 232, 247, .85);
      border-bottom: 1px solid rgba(220, 232, 247, .85);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border: 1px solid var(--border);
      background: rgba(255, 255, 255, .78);
      color: var(--primary-dark);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .03em;
      box-shadow: var(--shadow-sm);
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 99px;
      background: var(--accent);
      box-shadow: 0 0 0 5px rgba(25, 198, 212, .12);
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 26px;
      margin-bottom: 30px;
    }

    .section-title {
      margin: 14px 0 0;
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.12;
      letter-spacing: -.04em;
      font-weight: 900;
      color: var(--text);
    }

    .section-desc {
      max-width: 610px;
      margin: 14px 0 0;
      color: var(--muted);
      font-size: 16px;
    }

    .btn-brand {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: 999px;
      border: 1px solid transparent;
      background: linear-gradient(135deg, var(--primary), #5ba5ff);
      color: #fff;
      font-weight: 800;
      box-shadow: 0 14px 30px rgba(63, 140, 255, .24);
      transition: var(--ease);
      cursor: pointer;
    }

    .btn-brand:hover {
      transform: translateY(-2px);
      color: #fff;
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      box-shadow: 0 18px 38px rgba(63, 140, 255, .32);
    }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: 999px;
      border: 1px solid var(--border-strong);
      background: rgba(255, 255, 255, .74);
      color: var(--text);
      font-weight: 800;
      transition: var(--ease);
      cursor: pointer;
    }

    .btn-ghost:hover {
      transform: translateY(-2px);
      color: var(--primary-dark);
      border-color: rgba(63, 140, 255, .46);
      background: var(--primary-soft);
      box-shadow: var(--shadow-sm);
    }

    .badge-soft {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-size: 12px;
      font-weight: 800;
      border: 1px solid rgba(63, 140, 255, .14);
      white-space: nowrap;
    }

    .badge-cyan {
      background: var(--accent-soft);
      color: #087a86;
      border-color: rgba(25, 198, 212, .2);
    }

    .badge-warn {
      background: var(--warning-soft);
      color: #9b6816;
      border-color: rgba(255, 180, 84, .25);
    }

    .mag-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(251, 253, 255, .92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(220, 232, 247, .92);
      box-shadow: 0 12px 35px rgba(72, 112, 160, .06);
    }

    .masthead {
      min-height: var(--nav-h);
      display: flex;
      align-items: center;
      gap: 22px;
      padding: 14px 0;
    }

    .brand-mark {
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: 310px;
    }

    .brand-icon {
      width: 44px;
      height: 44px;
      border-radius: 16px;
      background:
        linear-gradient(135deg, rgba(63, 140, 255, .9), rgba(25, 198, 212, .86)),
        radial-gradient(circle at 30% 25%, #fff, transparent 26%);
      box-shadow: 0 12px 28px rgba(63, 140, 255, .24);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-icon::after {
      content: "";
      position: absolute;
      width: 16px;
      height: 16px;
      border-radius: 6px;
      right: 8px;
      bottom: 8px;
      background: #fff;
      opacity: .88;
    }

    .brand-title {
      font-size: clamp(18px, 2.6vw, 27px);
      line-height: 1.08;
      font-weight: 950;
      letter-spacing: -.05em;
      color: var(--text);
    }

    .nav-divider {
      width: 1px;
      height: 42px;
      background: var(--border);
      flex: 0 0 auto;
    }

    .channel-nav {
      display: flex;
      align-items: center;
      gap: 5px;
      flex: 1;
      min-width: 0;
    }

    .channel-nav .nav-link {
      padding: 10px 13px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 800;
      white-space: nowrap;
      position: relative;
    }

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

    .quick-search {
      display: flex;
      align-items: center;
      gap: 8px;
      width: 230px;
      padding: 9px 12px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 999px;
      box-shadow: var(--shadow-sm);
    }

    .quick-search span {
      color: var(--weak);
      font-size: 15px;
    }

    .quick-search input {
      width: 100%;
      border: 0;
      outline: none;
      color: var(--text);
      background: transparent;
      font-size: 13px;
    }

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

    .navbar-toggler {
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 9px 10px;
      box-shadow: none;
      background: #fff;
    }

    .hero {
      padding: 72px 0 64px;
    }

    .hero-wrap {
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 42px;
      align-items: center;
    }

    .hero-copy {
      position: relative;
      z-index: 2;
    }

    .hero h1 {
      margin: 18px 0 18px;
      font-size: clamp(38px, 6vw, 72px);
      line-height: .98;
      letter-spacing: -.07em;
      font-weight: 950;
      color: var(--text);
    }

    .hero-intro {
      max-width: 560px;
      font-size: 17px;
      color: var(--muted);
      margin: 0 0 24px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin: 26px 0 28px;
    }

    .hero-kpis {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 580px;
    }

    .kpi-chip {
      background: rgba(255, 255, 255, .82);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 15px 14px;
      box-shadow: var(--shadow-sm);
    }

    .kpi-chip strong {
      display: block;
      font-size: 22px;
      line-height: 1;
      font-weight: 950;
      color: var(--primary-dark);
      letter-spacing: -.03em;
      font-variant-numeric: tabular-nums;
    }

    .kpi-chip span {
      display: block;
      margin-top: 7px;
      font-size: 12px;
      color: var(--muted);
      font-weight: 700;
    }

    .dp-stage {
      position: relative;
      min-height: 520px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .dp-cover {
      width: min(100%, 720px);
      min-height: 472px;
      transform: rotate(-3.5deg) translateX(8px);
      border-radius: 36px;
      overflow: hidden;
      background:
        linear-gradient(135deg, rgba(255, 255, 255, .96), rgba(231, 244, 255, .93)),
        radial-gradient(circle at 20% 20%, rgba(25, 198, 212, .25), transparent 28%);
      border: 1px solid rgba(190, 212, 239, .88);
      box-shadow: var(--shadow-lg);
      position: relative;
      padding: 26px;
    }

    .dp-cover::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(120deg, transparent 0 42%, rgba(63, 140, 255, .08) 42% 44%, transparent 44% 100%),
        radial-gradient(circle at 82% 14%, rgba(255, 180, 84, .18), transparent 18%);
      pointer-events: none;
    }

    .cover-top {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: center;
      margin-bottom: 24px;
      position: relative;
      z-index: 1;
    }

    .cover-title {
      font-size: 17px;
      font-weight: 950;
      letter-spacing: -.03em;
    }

    .cover-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 16px;
    }

    .cover-panel {
      background: rgba(255, 255, 255, .78);
      border: 1px solid var(--border);
      border-radius: 24px;
      padding: 18px;
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
    }

    .cover-panel:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: rgba(63, 140, 255, .32);
    }

    .cover-panel.large {
      min-height: 235px;
      background:
        linear-gradient(180deg, rgba(63, 140, 255, .1), rgba(255, 255, 255, .72)),
        repeating-linear-gradient(90deg, transparent 0 24px, rgba(63, 140, 255, .04) 24px 25px);
    }

    .metric-line {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px dashed var(--border);
    }

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

    .metric-line span {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .metric-line b {
      color: var(--text);
      font-size: 18px;
      font-weight: 950;
      font-variant-numeric: tabular-nums;
    }

    .mini-bars {
      display: flex;
      align-items: end;
      gap: 8px;
      height: 112px;
      margin-top: 18px;
    }

    .mini-bars i {
      flex: 1;
      border-radius: 999px 999px 8px 8px;
      background: linear-gradient(180deg, var(--accent), var(--primary));
      opacity: .82;
      min-height: 22px;
    }

    .mini-bars i:nth-child(1) { height: 36%; }
    .mini-bars i:nth-child(2) { height: 64%; }
    .mini-bars i:nth-child(3) { height: 48%; }
    .mini-bars i:nth-child(4) { height: 82%; }
    .mini-bars i:nth-child(5) { height: 58%; }
    .mini-bars i:nth-child(6) { height: 92%; }

    .float-note {
      position: absolute;
      right: -8px;
      bottom: 34px;
      z-index: 3;
      width: 238px;
      padding: 16px;
      border-radius: 22px;
      background: rgba(255, 255, 255, .92);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
      transform: rotate(2.8deg);
    }

    .float-note strong {
      display: block;
      font-size: 15px;
      font-weight: 950;
      margin-bottom: 5px;
    }

    .float-note p {
      margin: 0;
      font-size: 13px;
      color: var(--muted);
      line-height: 1.55;
    }

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

    .directory-card {
      padding: 28px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
      height: 100%;
    }

    .directory-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(63, 140, 255, .36);
    }

    .directory-main {
      background:
        linear-gradient(135deg, rgba(63, 140, 255, .09), transparent 44%),
        #fff;
    }

    .dir-list {
      display: grid;
      gap: 12px;
      margin-top: 22px;
    }

    .dir-item {
      display: grid;
      grid-template-columns: 42px 1fr auto;
      align-items: center;
      gap: 14px;
      padding: 14px;
      border-radius: 18px;
      background: rgba(246, 250, 255, .82);
      border: 1px solid var(--border);
      transition: var(--ease);
    }

    .dir-item:hover {
      background: var(--primary-soft);
      border-color: rgba(63, 140, 255, .28);
    }

    .dir-icon {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      background: linear-gradient(135deg, var(--primary-soft), #fff);
      color: var(--primary-dark);
      font-weight: 950;
      box-shadow: inset 0 0 0 1px rgba(63, 140, 255, .12);
    }

    .dir-item h3 {
      margin: 0;
      font-size: 16px;
      font-weight: 950;
    }

    .dir-item p {
      margin: 2px 0 0;
      font-size: 13px;
      color: var(--muted);
      line-height: 1.55;
    }

    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }

    .task-card {
      grid-column: span 2;
      padding: 22px;
      border-radius: 24px;
      border: 1px solid var(--border);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, .94), rgba(247, 251, 255, .94));
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
      position: relative;
      overflow: hidden;
    }

    .task-card:nth-child(2),
    .task-card:nth-child(5) {
      grid-column: span 2;
      transform: translateY(18px);
    }

    .task-card::after {
      content: "";
      position: absolute;
      width: 130px;
      height: 130px;
      right: -52px;
      top: -54px;
      border-radius: 50%;
      background: rgba(63, 140, 255, .08);
      transition: var(--ease);
    }

    .task-card:hover {
      transform: translateY(-6px);
      border-color: rgba(63, 140, 255, .4);
      box-shadow: var(--shadow-md);
    }

    .task-card:nth-child(2):hover,
    .task-card:nth-child(5):hover {
      transform: translateY(12px);
    }

    .task-card:hover::after {
      transform: scale(1.25);
      background: rgba(25, 198, 212, .1);
    }

    .task-icon {
      width: 48px;
      height: 48px;
      border-radius: 17px;
      display: grid;
      place-items: center;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-weight: 950;
      font-size: 20px;
      margin-bottom: 18px;
      transition: var(--ease);
    }

    .task-card:hover .task-icon {
      transform: rotate(-6deg) scale(1.05);
      background: var(--accent-soft);
      color: #087a86;
    }

    .task-card h3 {
      margin: 0 0 8px;
      font-size: 19px;
      line-height: 1.28;
      font-weight: 950;
      letter-spacing: -.03em;
    }

    .task-card p {
      margin: 0 0 16px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .value-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
      margin-top: 28px;
    }

    .value-item {
      padding: 18px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .value-item strong {
      display: block;
      font-size: 24px;
      color: var(--primary-dark);
      font-weight: 950;
      font-variant-numeric: tabular-nums;
      line-height: 1;
    }

    .value-item span {
      display: block;
      margin-top: 9px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

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

    .compare-card {
      padding: 26px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      height: 100%;
    }

    .compare-card.highlight {
      border-color: rgba(63, 140, 255, .34);
      background:
        linear-gradient(135deg, rgba(63, 140, 255, .1), transparent 52%),
        #fff;
      box-shadow: var(--shadow-md);
    }

    .compare-card h3 {
      margin: 0 0 16px;
      font-weight: 950;
      letter-spacing: -.03em;
    }

    .compare-row {
      display: grid;
      grid-template-columns: 92px 1fr auto;
      align-items: center;
      gap: 14px;
      padding: 13px 0;
      border-bottom: 1px dashed var(--border);
    }

    .compare-row:last-child {
      border-bottom: 0;
    }

    .compare-row span {
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
    }

    .compare-bar {
      height: 10px;
      border-radius: 999px;
      background: var(--surface-soft);
      overflow: hidden;
    }

    .compare-bar i {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--primary), var(--accent));
    }

    .compare-row b {
      font-size: 13px;
      color: var(--text);
      font-variant-numeric: tabular-nums;
    }

    .thin-callout {
      margin-top: 24px;
      padding: 14px 18px;
      border-radius: 18px;
      background: linear-gradient(90deg, var(--primary-soft), var(--accent-soft));
      border: 1px solid rgba(63, 140, 255, .18);
      color: #30506f;
      font-weight: 800;
      font-size: 14px;
    }

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

    .entry-link {
      min-height: 122px;
      padding: 18px;
      border-radius: 24px;
      border: 1px solid var(--border);
      background: rgba(255, 255, 255, .9);
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .entry-link:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(63, 140, 255, .34);
      background: #fff;
    }

    .entry-link b {
      font-size: 17px;
      font-weight: 950;
      letter-spacing: -.03em;
    }

    .entry-link span {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
    }

    .news-layout {
      display: grid;
      grid-template-columns: 1.35fr .65fr;
      gap: 24px;
      align-items: start;
    }

    .news-list,
    .recommend-box,
    .calendar-box,
    .changelog-box {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .news-item {
      display: grid;
      grid-template-columns: 92px 1fr;
      gap: 18px;
      padding: 18px 0;
      border-bottom: 1px solid var(--border);
    }

    .news-item:first-child {
      padding-top: 0;
    }

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

    .news-date {
      width: 76px;
      height: 64px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-weight: 950;
      line-height: 1.15;
      text-align: center;
      font-variant-numeric: tabular-nums;
    }

    .news-date small {
      display: block;
      color: var(--muted);
      font-size: 11px;
      font-weight: 800;
    }

    .news-item h3 {
      margin: 0 0 6px;
      font-size: 18px;
      line-height: 1.35;
      font-weight: 950;
    }

    .news-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .recommend-box h3,
    .calendar-box h3,
    .changelog-box h3 {
      font-size: 19px;
      font-weight: 950;
      margin: 0 0 16px;
      letter-spacing: -.03em;
    }

    .side-link {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      align-items: center;
      padding: 13px 0;
      border-bottom: 1px dashed var(--border);
      color: var(--muted);
      font-size: 14px;
      font-weight: 800;
    }

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

    .side-link:hover {
      color: var(--primary-dark);
      padding-left: 6px;
    }

    .update-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
    }

    .timeline {
      display: grid;
      gap: 14px;
      margin-top: 10px;
    }

    .timeline-item {
      position: relative;
      display: grid;
      grid-template-columns: 84px 1fr;
      gap: 16px;
      padding: 14px;
      border-radius: 20px;
      background: var(--surface-soft);
      border: 1px solid var(--border);
    }

    .timeline-item time {
      color: var(--primary-dark);
      font-weight: 950;
      font-variant-numeric: tabular-nums;
    }

    .timeline-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.6;
    }

    .security-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      padding: 18px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .security-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 14px;
      border-radius: 18px;
      background: var(--surface-soft);
    }

    .security-item i {
      width: 36px;
      height: 36px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      background: #fff;
      color: var(--primary-dark);
      font-style: normal;
      font-weight: 950;
      box-shadow: inset 0 0 0 1px var(--border);
      flex: 0 0 auto;
    }

    .security-item b {
      display: block;
      font-size: 14px;
      font-weight: 950;
    }

    .security-item span {
      display: block;
      font-size: 12px;
      color: var(--muted);
      margin-top: 2px;
    }

    .accordion {
      display: grid;
      gap: 12px;
    }

    .accordion-item {
      border: 1px solid var(--border) !important;
      border-radius: 20px !important;
      overflow: hidden;
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .accordion-button {
      padding: 18px 20px;
      background: #fff;
      color: var(--text);
      font-weight: 950;
      letter-spacing: -.02em;
      box-shadow: none !important;
      gap: 12px;
    }

    .accordion-button::before {
      content: attr(data-no);
      width: 34px;
      height: 34px;
      border-radius: 13px;
      display: inline-grid;
      place-items: center;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 950;
      flex: 0 0 auto;
    }

    .accordion-button:not(.collapsed) {
      background: linear-gradient(90deg, var(--primary-soft), #fff);
      color: var(--primary-dark);
    }

    .accordion-button:focus {
      border-color: transparent;
      box-shadow: none;
    }

    .accordion-body {
      padding: 0 22px 22px 68px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .lead-form-wrap {
      border-radius: 34px;
      background:
        linear-gradient(135deg, rgba(63, 140, 255, .16), rgba(25, 198, 212, .09)),
        #eef6ff;
      border: 1px solid var(--border-strong);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .lead-form-inner {
      display: grid;
      grid-template-columns: .82fr 1.18fr;
      gap: 0;
    }

    .lead-aside {
      padding: 36px;
      background:
        radial-gradient(circle at 20% 18%, rgba(255, 255, 255, .8), transparent 28%),
        linear-gradient(180deg, rgba(255, 255, 255, .46), rgba(255, 255, 255, .16));
      border-right: 1px solid rgba(190, 212, 239, .7);
    }

    .lead-aside h2 {
      margin: 14px 0 14px;
      font-size: clamp(26px, 3.5vw, 42px);
      line-height: 1.12;
      font-weight: 950;
      letter-spacing: -.05em;
    }

    .lead-aside p {
      color: var(--muted);
      margin: 0 0 22px;
    }

    .trust-list {
      display: grid;
      gap: 12px;
      margin-top: 20px;
    }

    .trust-list li {
      list-style: none;
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(255, 255, 255, .72);
      border: 1px solid rgba(220, 232, 247, .86);
      color: #40536c;
      font-weight: 800;
      font-size: 14px;
    }

    .lead-form {
      padding: 36px;
      background: rgba(255, 255, 255, .74);
    }

    .form-label {
      color: var(--text);
      font-weight: 900;
      font-size: 14px;
      margin-bottom: 8px;
    }

    .form-control,
    .form-select {
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 13px 15px;
      background-color: #fff;
      color: var(--text);
      box-shadow: none;
      transition: var(--ease);
    }

    .form-control:hover,
    .form-select:hover {
      border-color: var(--border-strong);
    }

    .form-control:focus,
    .form-select:focus {
      border-color: rgba(63, 140, 255, .55);
      box-shadow: 0 0 0 4px rgba(63, 140, 255, .12);
    }

    .form-text {
      color: var(--weak);
      font-size: 12px;
      margin-top: 7px;
    }

    .form-check-input {
      border-color: var(--border-strong);
      width: 18px;
      height: 18px;
      margin-top: .32em;
    }

    .form-check-input:checked {
      background-color: var(--primary);
      border-color: var(--primary);
    }

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

    .site-footer {
      padding: 48px 0 28px;
      background: #ffffff;
      border-top: 1px solid var(--border);
    }

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

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

    .footer-brand .brand-title {
      font-size: 22px;
    }

    .footer-text {
      color: var(--muted);
      max-width: 520px;
      font-size: 14px;
      margin: 0;
    }

    .footer-col h3 {
      margin: 0 0 14px;
      font-size: 15px;
      font-weight: 950;
    }

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

    .footer-links a {
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
    }

    .footer-links a:hover {
      color: var(--primary-dark);
      transform: translateX(3px);
    }

    .copyright {
      margin-top: 34px;
      padding-top: 20px;
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: var(--weak);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      :root {
        --nav-h: auto;
      }

      .masthead {
        align-items: flex-start;
        flex-wrap: wrap;
      }

      .brand-mark {
        min-width: 0;
        flex: 1;
      }

      .nav-divider,
      .quick-search {
        display: none;
      }

      .channel-nav {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 4px;
      }

      .hero-wrap,
      .directory-grid,
      .compare-wrap,
      .news-layout,
      .update-grid,
      .lead-form-inner {
        grid-template-columns: 1fr;
      }

      .dp-stage {
        min-height: 440px;
      }

      .dp-cover {
        min-height: 410px;
      }

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

      .task-card,
      .task-card:nth-child(2),
      .task-card:nth-child(5) {
        grid-column: span 1;
        transform: none;
      }

      .task-card:nth-child(2):hover,
      .task-card:nth-child(5):hover {
        transform: translateY(-6px);
      }

      .entry-matrix,
      .security-strip,
      .value-strip {
        grid-template-columns: repeat(2, 1fr);
      }

      .lead-aside {
        border-right: 0;
        border-bottom: 1px solid rgba(190, 212, 239, .7);
      }
    }

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

      .section {
        padding: 62px 0;
      }

      .hero {
        padding: 48px 0 50px;
      }

      .hero h1 {
        font-size: clamp(34px, 12vw, 50px);
      }

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

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

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

      .dp-stage {
        min-height: auto;
        display: block;
      }

      .dp-cover {
        transform: none;
        min-height: auto;
        padding: 18px;
        border-radius: 28px;
      }

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

      .float-note {
        position: static;
        width: auto;
        transform: none;
        margin-top: 14px;
      }

      .section-head {
        display: block;
      }

      .matrix-grid,
      .entry-matrix,
      .security-strip,
      .value-strip {
        grid-template-columns: 1fr;
      }

      .dir-item {
        grid-template-columns: 42px 1fr;
      }

      .dir-item .badge-soft {
        grid-column: 2;
        justify-self: start;
      }

      .compare-row {
        grid-template-columns: 78px 1fr;
      }

      .compare-row b {
        grid-column: 2;
      }

      .news-item {
        grid-template-columns: 1fr;
        gap: 10px;
      }

      .timeline-item {
        grid-template-columns: 1fr;
        gap: 6px;
      }

      .accordion-button {
        align-items: flex-start;
        line-height: 1.45;
      }

      .accordion-body {
        padding: 0 18px 20px 18px;
      }

      .lead-aside,
      .lead-form {
        padding: 24px;
      }

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

    @media (max-width: 520px) {
      .brand-icon {
        width: 38px;
        height: 38px;
        border-radius: 14px;
      }

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

      .masthead {
        gap: 12px;
      }

      .channel-nav .nav-link {
        padding: 9px 11px;
        font-size: 13px;
      }

      .cover-top {
        align-items: flex-start;
        flex-direction: column;
      }

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

      .directory-card,
      .compare-card,
      .news-list,
      .recommend-box,
      .calendar-box,
      .changelog-box {
        padding: 20px;
        border-radius: 24px;
      }

      .security-item {
        align-items: flex-start;
      }

      .copyright {
        display: block;
      }

      .copyright span {
        display: block;
        margin-top: 8px;
      }
    }

/* roulang page: category1 */
:root {
      --primary: #3d8bff;
      --primary-strong: #1f6fe5;
      --primary-soft: #eaf4ff;
      --cyan: #24c6dc;
      --mint: #dffaf8;
      --warning: #ffb84d;
      --danger: #ff6b6b;
      --ink: #14213d;
      --text: #35445f;
      --muted: #71809a;
      --line: #dce8f6;
      --bg: #f6faff;
      --panel: #ffffff;
      --panel-blue: #f0f7ff;
      --shadow: 0 18px 45px rgba(45, 101, 170, .12);
      --shadow-soft: 0 10px 28px rgba(45, 101, 170, .08);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1180px;
      --speed: .22s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      color: var(--text);
      line-height: 1.75;
      background:
        radial-gradient(circle at 8% 8%, rgba(36, 198, 220, .14), transparent 28%),
        radial-gradient(circle at 92% 12%, rgba(61, 139, 255, .13), transparent 30%),
        linear-gradient(180deg, #fbfdff 0%, var(--bg) 48%, #ffffff 100%);
      overflow-x: hidden;
    }

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

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

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

    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible,
    a:focus-visible {
      outline: 4px solid rgba(61, 139, 255, .22);
      outline-offset: 3px;
      border-radius: 10px;
    }

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

    .mag-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, .88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(220, 232, 246, .9);
      box-shadow: 0 10px 30px rgba(31, 111, 229, .06);
    }

    .masthead {
      min-height: 84px;
      display: flex;
      align-items: center;
      gap: 22px;
      padding: 14px 0;
    }

    .brand-mark,
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
    }

    .brand-icon {
      width: 38px;
      height: 38px;
      flex: 0 0 auto;
      border-radius: 14px;
      background:
        linear-gradient(135deg, #76c7ff 0%, #3d8bff 48%, #24c6dc 100%);
      box-shadow: inset 0 -8px 16px rgba(255, 255, 255, .28), 0 10px 20px rgba(61, 139, 255, .22);
      position: relative;
    }

    .brand-icon::after {
      content: "";
      position: absolute;
      width: 13px;
      height: 13px;
      border-radius: 5px;
      background: #fff;
      top: 8px;
      left: 8px;
      box-shadow: 12px 12px 0 rgba(255,255,255,.62);
    }

    .brand-title {
      font-weight: 900;
      letter-spacing: -.04em;
      color: var(--ink);
      font-size: clamp(18px, 2.4vw, 28px);
      line-height: 1.12;
      white-space: nowrap;
    }

    .nav-divider {
      width: 1px;
      height: 38px;
      background: var(--line);
      flex: 0 0 auto;
    }

    .channel-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      flex: 1 1 auto;
      min-width: 0;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .channel-nav::-webkit-scrollbar {
      display: none;
    }

    .nav-link {
      color: var(--muted);
      font-weight: 800;
      padding: 10px 14px;
      border-radius: 999px;
      white-space: nowrap;
      border: 1px solid transparent;
    }

    .nav-link:hover {
      color: var(--primary-strong);
      background: var(--primary-soft);
      border-color: rgba(61, 139, 255, .16);
    }

    .nav-link.active {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-strong));
      box-shadow: 0 10px 22px rgba(61, 139, 255, .22);
    }

    .quick-search {
      display: flex;
      align-items: center;
      gap: 8px;
      background: #f4f9ff;
      border: 1px solid var(--line);
      color: var(--muted);
      border-radius: 999px;
      padding: 8px 13px;
      min-width: 210px;
      transition: border-color var(--speed), box-shadow var(--speed), background var(--speed);
    }

    .quick-search:focus-within {
      background: #fff;
      border-color: rgba(61, 139, 255, .52);
      box-shadow: 0 0 0 4px rgba(61, 139, 255, .12);
    }

    .quick-search input {
      width: 100%;
      border: 0;
      outline: 0;
      background: transparent;
      color: var(--ink);
      font-size: 14px;
    }

    .hero {
      padding: 58px 0 38px;
    }

    .hero-shell {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(330px, .92fr);
      gap: 28px;
      align-items: stretch;
    }

    .hero-copy {
      background: linear-gradient(135deg, rgba(255,255,255,.96), rgba(239,247,255,.88));
      border: 1px solid rgba(220, 232, 246, .95);
      border-radius: var(--radius-xl);
      padding: clamp(26px, 4vw, 46px);
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
    }

    .hero-copy::before {
      content: "";
      position: absolute;
      right: -86px;
      top: -86px;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      background: rgba(36, 198, 220, .18);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary-strong);
      background: #eef7ff;
      border: 1px solid rgba(61, 139, 255, .18);
      border-radius: 999px;
      padding: 7px 12px;
      font-size: 13px;
      font-weight: 900;
      margin-bottom: 18px;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 99px;
      background: var(--cyan);
      box-shadow: 0 0 0 5px rgba(36,198,220,.14);
    }

    h1 {
      margin: 0 0 16px;
      color: var(--ink);
      font-weight: 950;
      letter-spacing: -.06em;
      line-height: 1.08;
      font-size: clamp(34px, 5.4vw, 64px);
      max-width: 820px;
      position: relative;
      z-index: 1;
    }

    .hero-subtitle {
      font-size: clamp(16px, 1.8vw, 20px);
      color: #4f6078;
      max-width: 760px;
      margin: 0 0 24px;
      position: relative;
      z-index: 1;
    }

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

    .btn-brand {
      border: 0;
      background: linear-gradient(135deg, var(--primary), var(--primary-strong));
      color: #fff;
      border-radius: 999px;
      padding: 12px 20px;
      font-weight: 900;
      box-shadow: 0 14px 26px rgba(61, 139, 255, .24);
    }

    .btn-brand:hover,
    .btn-brand:active {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(31, 111, 229, .28);
    }

    .btn-ghost {
      border: 1px solid rgba(61, 139, 255, .28);
      color: var(--primary-strong);
      background: rgba(255,255,255,.75);
      border-radius: 999px;
      padding: 12px 18px;
      font-weight: 900;
    }

    .btn-ghost:hover,
    .btn-ghost:active {
      color: var(--primary-strong);
      background: var(--primary-soft);
      border-color: rgba(61, 139, 255, .55);
      transform: translateY(-2px);
    }

    .demo-panel {
      border-radius: var(--radius-xl);
      background: #fff;
      border: 1px solid rgba(220,232,246,.95);
      box-shadow: var(--shadow);
      padding: 22px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .demo-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--line);
    }

    .demo-title {
      color: var(--ink);
      font-weight: 950;
      letter-spacing: -.03em;
      margin: 0;
    }

    .status-pill,
    .chip,
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      padding: 6px 10px;
      font-size: 12px;
      font-weight: 900;
      white-space: nowrap;
    }

    .status-pill {
      background: var(--mint);
      color: #087a78;
    }

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

    .metric-card {
      background: linear-gradient(180deg, #f8fbff, #ffffff);
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 16px;
      min-height: 116px;
      position: relative;
      overflow: hidden;
    }

    .metric-card::after {
      content: "";
      position: absolute;
      inset: auto 12px 12px auto;
      width: 48px;
      height: 30px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(61,139,255,.18), rgba(36,198,220,.2));
    }

    .metric-value {
      color: var(--ink);
      font-size: 30px;
      line-height: 1;
      font-weight: 950;
      letter-spacing: -.04em;
      margin-bottom: 8px;
    }

    .metric-name {
      color: var(--muted);
      font-weight: 800;
      font-size: 13px;
    }

    .progress-mini {
      height: 7px;
      border-radius: 99px;
      background: #e8f1fb;
      margin-top: 14px;
      overflow: hidden;
    }

    .progress-mini span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--primary), var(--cyan));
    }

    .filter-strip {
      margin-top: 20px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .chip {
      background: #fff;
      border: 1px solid var(--line);
      color: var(--muted);
    }

    .chip.active,
    .chip:hover {
      color: var(--primary-strong);
      border-color: rgba(61,139,255,.36);
      background: var(--primary-soft);
      transform: translateY(-1px);
    }

    .section {
      padding: 56px 0;
    }

    .section-divider {
      background: linear-gradient(180deg, rgba(240,247,255,.86), rgba(255,255,255,.96));
      border-top: 1px solid rgba(220,232,246,.88);
      border-bottom: 1px solid rgba(220,232,246,.62);
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, .82fr) minmax(260px, .36fr);
      gap: 24px;
      align-items: end;
      margin-bottom: 24px;
    }

    .section-kicker {
      color: var(--primary-strong);
      font-weight: 950;
      font-size: 13px;
      letter-spacing: .08em;
      margin-bottom: 8px;
    }

    h2 {
      color: var(--ink);
      font-size: clamp(26px, 3vw, 40px);
      line-height: 1.16;
      font-weight: 950;
      letter-spacing: -.05em;
      margin: 0;
    }

    .section-lead {
      color: var(--muted);
      margin: 10px 0 0;
      max-width: 760px;
    }

    .head-note {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 14px 16px;
      box-shadow: var(--shadow-soft);
      color: var(--muted);
      font-weight: 750;
      font-size: 14px;
    }

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

    .task-card {
      min-height: 242px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-soft);
      padding: 18px;
      transition: transform var(--speed), box-shadow var(--speed), border-color var(--speed);
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .task-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow);
      border-color: rgba(61,139,255,.45);
    }

    .thumb {
      height: 116px;
      border-radius: 18px;
      background:
        linear-gradient(135deg, rgba(61,139,255,.12), rgba(36,198,220,.16)),
        radial-gradient(circle at 24% 30%, #fff 0 10px, transparent 11px),
        radial-gradient(circle at 76% 72%, rgba(255,184,77,.42) 0 13px, transparent 14px);
      border: 1px solid rgba(220,232,246,.95);
      position: relative;
      overflow: hidden;
    }

    .thumb::before {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 22px;
      height: 10px;
      border-radius: 99px;
      background: rgba(255,255,255,.82);
      box-shadow: 0 -22px 0 rgba(255,255,255,.55), 0 -44px 0 rgba(255,255,255,.35);
    }

    .task-card h3 {
      color: var(--ink);
      font-weight: 950;
      font-size: 19px;
      letter-spacing: -.03em;
      margin: 0;
    }

    .task-card p {
      color: var(--muted);
      margin: 0;
      font-size: 14px;
      line-height: 1.65;
    }

    .task-meta {
      margin-top: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      flex-wrap: wrap;
    }

    .tag {
      background: #eef7ff;
      color: var(--primary-strong);
      border: 1px solid rgba(61,139,255,.16);
    }

    .heat {
      color: #60718d;
      font-weight: 900;
      font-size: 13px;
    }

    .matrix {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 18px;
      align-items: stretch;
    }

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

    .mission-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 18px;
      box-shadow: var(--shadow-soft);
      transition: transform var(--speed), box-shadow var(--speed), border-color var(--speed);
    }

    .mission-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
      border-color: rgba(61,139,255,.45);
    }

    .mission-icon {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      background: linear-gradient(135deg, #eaf4ff, #dffaf8);
      color: var(--primary-strong);
      font-weight: 950;
      margin-bottom: 12px;
      transition: transform var(--speed);
    }

    .mission-card:hover .mission-icon {
      transform: rotate(-5deg) scale(1.04);
    }

    .mission-card h3 {
      margin: 0 0 6px;
      color: var(--ink);
      font-weight: 950;
      font-size: 18px;
    }

    .mission-card p {
      margin: 0 0 12px;
      color: var(--muted);
      font-size: 14px;
    }

    .score-panel {
      background: linear-gradient(160deg, #ffffff, #eef7ff);
      border: 1px solid var(--line);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 100%;
    }

    .score-ring {
      width: 172px;
      height: 172px;
      border-radius: 50%;
      margin: 6px auto 20px;
      background:
        conic-gradient(var(--primary) 0deg 252deg, #e5effa 252deg 360deg);
      display: grid;
      place-items: center;
      box-shadow: inset 0 0 0 18px #fff, 0 18px 34px rgba(61,139,255,.16);
    }

    .score-ring strong {
      color: var(--ink);
      font-size: 36px;
      font-weight: 950;
      letter-spacing: -.04em;
    }

    .score-panel h3 {
      color: var(--ink);
      font-weight: 950;
      text-align: center;
      margin: 0 0 8px;
    }

    .score-panel p {
      color: var(--muted);
      text-align: center;
      margin: 0;
    }

    .compare-wrap {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .compare-row {
      display: grid;
      grid-template-columns: 190px 1fr 1fr;
      min-width: 720px;
      border-bottom: 1px solid var(--line);
    }

    .compare-row:last-child {
      border-bottom: 0;
    }

    .compare-cell {
      padding: 18px;
      border-right: 1px solid var(--line);
    }

    .compare-cell:last-child {
      border-right: 0;
    }

    .compare-head {
      background: #f2f8ff;
      color: var(--ink);
      font-weight: 950;
    }

    .compare-label {
      color: var(--ink);
      font-weight: 950;
    }

    .good {
      color: #0b7f79;
      font-weight: 900;
    }

    .normal {
      color: #7a8497;
      font-weight: 900;
    }

    .compare-scroll {
      overflow-x: auto;
    }

    .notice-band {
      margin-top: 18px;
      border-radius: 18px;
      background: linear-gradient(90deg, #eaf4ff, #f7fbff);
      border: 1px solid rgba(61,139,255,.16);
      padding: 14px 18px;
      color: #51627b;
      font-weight: 800;
    }

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

    .step-card {
      counter-increment: step;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 20px;
      box-shadow: var(--shadow-soft);
      position: relative;
    }

    .step-card::before {
      content: "0" counter(step);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background: var(--primary-soft);
      color: var(--primary-strong);
      font-weight: 950;
      margin-bottom: 14px;
    }

    .step-card h3 {
      color: var(--ink);
      font-weight: 950;
      font-size: 18px;
      margin: 0 0 8px;
    }

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

    .accordion {
      --bs-accordion-border-width: 0;
      --bs-accordion-bg: transparent;
    }

    .faq-box {
      max-width: 920px;
    }

    .accordion-item {
      border: 1px solid var(--line) !important;
      border-radius: 18px !important;
      overflow: hidden;
      margin-bottom: 12px;
      background: #fff;
      box-shadow: var(--shadow-soft);
    }

    .accordion-button {
      color: var(--ink);
      background: #fff;
      font-weight: 950;
      padding: 18px 20px;
      gap: 12px;
      box-shadow: none !important;
    }

    .accordion-button::before {
      content: attr(data-no);
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: inline-grid;
      place-items: center;
      background: var(--primary-soft);
      color: var(--primary-strong);
      font-weight: 950;
      flex: 0 0 auto;
    }

    .accordion-button:not(.collapsed) {
      background: linear-gradient(180deg, #f3f9ff, #ffffff);
      color: var(--primary-strong);
    }

    .accordion-body {
      color: var(--muted);
      padding: 0 22px 20px 66px;
    }

    .lead-panel {
      background:
        radial-gradient(circle at 8% 10%, rgba(36,198,220,.2), transparent 25%),
        linear-gradient(135deg, #eef7ff, #ffffff);
      border: 1px solid var(--line);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow);
      padding: clamp(22px, 4vw, 36px);
    }

    .lead-grid {
      display: grid;
      grid-template-columns: .88fr 1.12fr;
      gap: 28px;
      align-items: start;
    }

    .trust-list {
      display: grid;
      gap: 12px;
      margin-top: 20px;
    }

    .trust-item {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: #53647f;
      font-weight: 780;
      background: rgba(255,255,255,.7);
      border: 1px solid rgba(220,232,246,.9);
      border-radius: 16px;
      padding: 12px;
    }

    .trust-item span {
      color: var(--primary-strong);
      font-weight: 950;
    }

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

    .form-label {
      color: var(--ink);
      font-weight: 900;
      font-size: 14px;
      margin-bottom: 7px;
    }

    .form-control,
    .form-select {
      border-radius: 14px;
      border: 1px solid var(--line);
      background-color: #f9fcff;
      padding: 12px 14px;
      color: var(--ink);
      transition: border-color var(--speed), box-shadow var(--speed), background var(--speed);
    }

    .form-control:focus,
    .form-select:focus {
      border-color: rgba(61,139,255,.62);
      box-shadow: 0 0 0 4px rgba(61,139,255,.13);
      background-color: #fff;
    }

    .form-check-input {
      border-color: #b8cbe1;
    }

    .form-check-input:checked {
      background-color: var(--primary);
      border-color: var(--primary);
    }

    .form-hint {
      color: var(--muted);
      font-size: 13px;
      margin-top: 10px;
    }

    .site-footer {
      padding: 46px 0 26px;
      background: #ffffff;
      border-top: 1px solid var(--line);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .8fr;
      gap: 28px;
      align-items: start;
    }

    .footer-text {
      color: var(--muted);
      margin: 14px 0 0;
      max-width: 560px;
    }

    .footer-col h3 {
      color: var(--ink);
      font-size: 16px;
      font-weight: 950;
      margin: 0 0 12px;
    }

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

    .footer-links a {
      color: var(--muted);
      font-weight: 750;
    }

    .footer-links a:hover {
      color: var(--primary-strong);
      transform: translateX(3px);
    }

    .copyright {
      margin-top: 28px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 12px;
      color: #7c8aa0;
      font-size: 13px;
      font-weight: 750;
    }

    @media (max-width: 1024px) {
      .masthead {
        flex-wrap: wrap;
      }

      .quick-search {
        order: 3;
        width: 100%;
        min-width: 0;
      }

      .hero-shell,
      .matrix,
      .lead-grid {
        grid-template-columns: 1fr;
      }

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

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

      .section-head {
        grid-template-columns: 1fr;
      }
    }

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

      .masthead {
        min-height: auto;
        gap: 12px;
        padding: 12px 0;
      }

      .brand-title {
        white-space: normal;
        font-size: 18px;
      }

      .nav-divider {
        display: none;
      }

      .channel-nav {
        width: 100%;
        order: 2;
        padding-bottom: 2px;
      }

      .nav-link {
        padding: 9px 12px;
        font-size: 14px;
      }

      .hero {
        padding-top: 34px;
      }

      .hero-copy,
      .demo-panel,
      .lead-panel {
        border-radius: 22px;
      }

      .metric-grid,
      .matrix-list,
      .task-grid,
      .steps,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 42px 0;
      }

      .compare-row {
        grid-template-columns: 150px 260px 260px;
      }

      .accordion-body {
        padding-left: 22px;
      }

      .copyright {
        display: grid;
      }
    }

    @media (max-width: 520px) {
      .hero-actions,
      .cta-actions {
        display: grid;
      }

      .btn-brand,
      .btn-ghost {
        width: 100%;
        text-align: center;
      }

      .metric-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
      }

      .metric-card {
        padding: 13px;
        min-height: 104px;
      }

      .metric-value {
        font-size: 25px;
      }

      .filter-strip {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 4px;
      }

      .chip {
        flex: 0 0 auto;
      }

      .hero-copy {
        padding: 24px 20px;
      }

      .demo-panel {
        padding: 16px;
      }

      .form-card {
        padding: 16px;
      }
    }

/* roulang page: category2 */
:root{
      --blue-50:#f4f9ff;
      --blue-80:#eaf4ff;
      --blue-100:#dceeff;
      --blue-200:#b9ddff;
      --blue-400:#63a7ff;
      --blue-500:#3c8df2;
      --blue-600:#216fd0;
      --cyan:#32c7d4;
      --mint:#dffbf7;
      --orange:#ffb45c;
      --red:#ff6b7a;
      --ink:#152033;
      --muted:#607089;
      --light-muted:#8797ad;
      --line:#d9e7f7;
      --card:#ffffff;
      --bg:#f7fbff;
      --shadow-sm:0 8px 24px rgba(38,92,143,.08);
      --shadow-md:0 16px 42px rgba(42,103,165,.14);
      --shadow-lg:0 24px 70px rgba(40,100,170,.18);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:28px;
      --radius-xl:36px;
      --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","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 4%, rgba(99,167,255,.18), transparent 34%),
        radial-gradient(circle at 88% 10%, rgba(50,199,212,.14), transparent 32%),
        linear-gradient(180deg,#fbfdff 0%,var(--bg) 48%,#fff 100%);
      line-height:1.72;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
      outline:3px solid rgba(99,167,255,.36);
      outline-offset:3px;
    }
    .site-container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .mag-header{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(217,231,247,.9);
      box-shadow:0 10px 34px rgba(58,100,150,.06);
    }
    .masthead{
      min-height:82px;
      display:flex;
      align-items:center;
      gap:18px;
      padding:14px 0;
    }
    .brand-mark,.footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-icon{
      width:38px;
      height:38px;
      border-radius:14px;
      background:
        linear-gradient(135deg, #63a7ff 0%, #32c7d4 100%);
      box-shadow:inset 0 -5px 12px rgba(255,255,255,.28),0 10px 22px rgba(60,141,242,.22);
      position:relative;
      flex:0 0 auto;
    }
    .brand-icon::before{
      content:"";
      position:absolute;
      width:14px;
      height:14px;
      left:7px;
      top:7px;
      border-radius:6px;
      background:rgba(255,255,255,.82);
      box-shadow:13px 12px 0 rgba(255,255,255,.48);
    }
    .brand-title{
      font-size:clamp(18px,2vw,27px);
      font-weight:900;
      letter-spacing:-.04em;
      color:#0f2a4d;
      line-height:1.15;
    }
    .nav-divider{
      width:1px;
      height:42px;
      background:linear-gradient(180deg,transparent,var(--line),transparent);
      flex:0 0 auto;
    }
    .channel-nav{
      display:flex;
      align-items:center;
      gap:4px;
      flex:1 1 auto;
      overflow-x:auto;
      scrollbar-width:none;
      white-space:nowrap;
    }
    .channel-nav::-webkit-scrollbar{display:none}
    .nav-link{
      display:inline-flex;
      align-items:center;
      padding:9px 13px;
      border-radius:999px;
      color:#52647c;
      font-weight:800;
      font-size:14px;
      border:1px solid transparent;
    }
    .nav-link:hover{
      color:var(--blue-600);
      background:var(--blue-50);
      border-color:var(--blue-100);
      transform:translateY(-1px);
    }
    .nav-link.active{
      color:#115da9;
      background:linear-gradient(180deg,#edf7ff,#dff0ff);
      border-color:#c5e1ff;
      box-shadow:0 8px 18px rgba(60,141,242,.12);
    }
    .quick-search{
      flex:0 0 235px;
      display:flex;
      align-items:center;
      gap:8px;
      background:#f4f9ff;
      border:1px solid var(--line);
      border-radius:999px;
      padding:8px 12px;
      color:var(--light-muted);
      transition:var(--ease);
    }
    .quick-search:focus-within{
      background:#fff;
      border-color:#9bcaff;
      box-shadow:0 0 0 4px rgba(99,167,255,.12);
    }
    .quick-search input{
      border:0;
      outline:0;
      min-width:0;
      width:100%;
      background:transparent;
      color:var(--ink);
      font-size:14px;
    }
    .hero{
      padding:68px 0 44px;
    }
    .hero-shell{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(340px,.72fr);
      gap:30px;
      align-items:stretch;
    }
    .crumbs{
      display:flex;
      gap:10px;
      align-items:center;
      flex-wrap:wrap;
      margin-bottom:20px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
    }
    .crumbs span{
      color:#9aa9bb;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:#eef8ff;
      color:#216fd0;
      border:1px solid #cae5ff;
      font-size:13px;
      font-weight:900;
      margin-bottom:18px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 0 6px rgba(50,199,212,.13);
    }
    h1{
      margin:0;
      max-width:850px;
      font-size:clamp(35px,5vw,66px);
      line-height:1.06;
      letter-spacing:-.06em;
      font-weight:950;
      color:#10213a;
    }
    .hero-text{
      margin:20px 0 0;
      max-width:760px;
      color:#52647c;
      font-size:18px;
    }
    .hero-actions{
      margin-top:28px;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
    }
    .btn-primary-soft,.btn-ghost-soft{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      padding:12px 18px;
      border-radius:999px;
      font-weight:900;
      border:1px solid transparent;
      transition:var(--ease);
      cursor:pointer;
    }
    .btn-primary-soft{
      color:#fff;
      background:linear-gradient(135deg,var(--blue-500),var(--blue-600));
      box-shadow:0 14px 28px rgba(60,141,242,.24);
    }
    .btn-primary-soft:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 18px 36px rgba(60,141,242,.32);
      filter:saturate(1.05);
    }
    .btn-ghost-soft{
      background:#fff;
      color:#1d5f9f;
      border-color:#cfe5fa;
      box-shadow:var(--shadow-sm);
    }
    .btn-ghost-soft:hover{
      transform:translateY(-2px);
      border-color:#9bcaff;
      background:#f3f9ff;
      color:#0f579b;
      box-shadow:var(--shadow-md);
    }
    .chip-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--line);
      color:#586b84;
      font-size:13px;
      font-weight:800;
      box-shadow:0 6px 18px rgba(60,120,180,.06);
    }
    .chip.active{
      color:#1264b1;
      background:#e9f5ff;
      border-color:#b8ddff;
    }
    .lead-panel{
      background:rgba(255,255,255,.88);
      border:1px solid #dbeaf8;
      border-radius:var(--radius-xl);
      padding:24px;
      box-shadow:var(--shadow-lg);
      position:relative;
      overflow:hidden;
    }
    .lead-panel::before{
      content:"";
      position:absolute;
      inset:0 0 auto;
      height:8px;
      background:linear-gradient(90deg,var(--blue-400),var(--cyan),#9fd3ff);
    }
    .panel-title{
      margin:8px 0 6px;
      font-size:22px;
      line-height:1.25;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .panel-note{
      margin:0 0 18px;
      color:var(--muted);
      font-size:14px;
    }
    .mini-form{
      display:grid;
      gap:12px;
    }
    .form-control,.form-select{
      border:1px solid #d5e6f7;
      border-radius:16px;
      min-height:48px;
      background:#fbfdff;
      color:var(--ink);
      box-shadow:none!important;
    }
    .form-control:focus,.form-select:focus{
      border-color:#8ec4ff;
      box-shadow:0 0 0 4px rgba(99,167,255,.13)!important;
      background:#fff;
    }
    .hint{
      font-size:12px;
      color:#7d8ea4;
      margin:0;
    }
    .section{
      padding:64px 0;
    }
    .section.alt{
      background:linear-gradient(180deg,rgba(235,246,255,.72),rgba(248,252,255,.92));
      border-top:1px solid rgba(217,231,247,.75);
      border-bottom:1px solid rgba(217,231,247,.75);
    }
    .section-head{
      display:grid;
      grid-template-columns:minmax(0,.8fr) minmax(280px,.45fr);
      gap:26px;
      align-items:end;
      margin-bottom:28px;
    }
    .section-kicker{
      color:#216fd0;
      font-weight:950;
      font-size:13px;
      letter-spacing:.08em;
      margin-bottom:8px;
    }
    .section-title{
      margin:0;
      font-size:clamp(26px,3.2vw,42px);
      line-height:1.16;
      letter-spacing:-.045em;
      font-weight:950;
      color:#10213a;
    }
    .section-desc{
      margin:0;
      color:var(--muted);
      font-size:16px;
    }
    .dashboard-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:16px;
    }
    .metric-card,.task-card,.compare-card,.step-card,.scenario-card{
      background:var(--card);
      border:1px solid #dceafa;
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      overflow:hidden;
    }
    .metric-card:hover,.task-card:hover,.compare-card:hover,.step-card:hover,.scenario-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow-md);
      border-color:#b8ddff;
    }
    .metric-card{
      padding:22px;
      min-height:180px;
      position:relative;
    }
    .metric-card.large{
      grid-row:span 2;
      background:
        linear-gradient(145deg,#ffffff 0%,#f0f8ff 100%);
    }
    .metric-top{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:flex-start;
      margin-bottom:18px;
    }
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      background:#eef8ff;
      color:#1768b9;
      border:1px solid #c8e4ff;
      font-size:12px;
      font-weight:900;
    }
    .badge-warn{
      background:#fff7e8;
      color:#a86000;
      border-color:#ffe0aa;
    }
    .badge-safe{
      background:#eafbf8;
      color:#08756e;
      border-color:#bcece6;
    }
    .metric-number{
      font-variant-numeric:tabular-nums;
      font-size:clamp(34px,4.3vw,58px);
      font-weight:950;
      letter-spacing:-.06em;
      line-height:1;
      color:#10213a;
    }
    .metric-label{
      margin-top:8px;
      color:#5b6e86;
      font-weight:800;
    }
    .spark{
      height:56px;
      display:flex;
      align-items:end;
      gap:7px;
      margin-top:24px;
    }
    .spark i{
      flex:1;
      min-width:9px;
      border-radius:9px 9px 3px 3px;
      background:linear-gradient(180deg,#79bbff,#d9efff);
    }
    .progress-soft{
      height:9px;
      background:#e6f2ff;
      border-radius:999px;
      overflow:hidden;
      margin-top:18px;
    }
    .progress-soft span{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--blue-500),var(--cyan));
    }
    .matrix-grid{
      display:grid;
      grid-template-columns:repeat(6,1fr);
      gap:16px;
    }
    .task-card{
      grid-column:span 2;
      padding:20px;
      min-height:205px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .task-card.wide{grid-column:span 3}
    .task-icon{
      width:48px;
      height:48px;
      border-radius:18px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,#eef8ff,#dff7fb);
      color:#1b79c9;
      font-size:23px;
      margin-bottom:15px;
      transition:var(--ease);
    }
    .task-card:hover .task-icon{
      transform:rotate(-4deg) scale(1.06);
    }
    .task-card h3,.scenario-card h3,.step-card h3{
      margin:0 0 8px;
      font-size:19px;
      font-weight:950;
      letter-spacing:-.025em;
    }
    .task-card p,.scenario-card p,.step-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .card-meta{
      margin-top:18px;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:10px;
      color:#8192a8;
      font-size:12px;
      font-weight:800;
    }
    .compare-wrap{
      display:grid;
      grid-template-columns:.88fr 1.12fr;
      gap:18px;
      align-items:stretch;
    }
    .compare-card{
      padding:24px;
    }
    .compare-title{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      margin-bottom:18px;
    }
    .compare-title h3{
      margin:0;
      font-weight:950;
      font-size:22px;
      letter-spacing:-.03em;
    }
    .check-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:12px;
    }
    .check-list li{
      display:grid;
      grid-template-columns:26px 1fr;
      gap:10px;
      align-items:start;
      color:#52647c;
    }
    .check-list li::before{
      content:"✓";
      width:26px;
      height:26px;
      display:grid;
      place-items:center;
      border-radius:10px;
      background:#e8f7ff;
      color:#1674c8;
      font-weight:950;
      line-height:1;
    }
    .risk-list li::before{
      content:"!";
      background:#fff1f1;
      color:#d44c5a;
    }
    .compare-table{
      border:1px solid var(--line);
      border-radius:22px;
      overflow:hidden;
      background:#fff;
    }
    .compare-row{
      display:grid;
      grid-template-columns:1fr 1.15fr 1.15fr;
      border-bottom:1px solid #edf3fb;
    }
    .compare-row:last-child{border-bottom:0}
    .compare-row > div{
      padding:15px 16px;
      color:#566980;
      font-size:14px;
    }
    .compare-row.head > div{
      background:#f1f8ff;
      color:#16375e;
      font-weight:950;
    }
    .compare-row > div:first-child{
      font-weight:900;
      color:#24405f;
      background:#fbfdff;
    }
    .steps{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .step-card{
      padding:22px;
      position:relative;
    }
    .step-num{
      width:36px;
      height:36px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:#eaf5ff;
      color:#176fc7;
      font-weight:950;
      margin-bottom:16px;
      box-shadow:inset 0 -3px 8px rgba(255,255,255,.8);
    }
    .scenario-grid{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:16px;
    }
    .scenario-card{
      padding:0;
      display:grid;
      grid-template-columns:150px 1fr;
      min-height:168px;
    }
    .thumb{
      min-height:100%;
      background:
        linear-gradient(135deg,rgba(99,167,255,.86),rgba(50,199,212,.68)),
        radial-gradient(circle at 30% 20%,rgba(255,255,255,.5),transparent 35%);
      position:relative;
      overflow:hidden;
    }
    .thumb::after{
      content:"";
      position:absolute;
      width:120px;
      height:120px;
      border-radius:34px;
      background:rgba(255,255,255,.2);
      right:-38px;
      bottom:-42px;
      transform:rotate(18deg);
    }
    .scenario-body{
      padding:20px;
    }
    .tag-cloud{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-top:16px;
    }
    .tag{
      padding:7px 10px;
      border:1px solid #d7e8f8;
      border-radius:999px;
      background:#fbfdff;
      color:#607089;
      font-size:12px;
      font-weight:850;
    }
    .band{
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,#eaf6ff 0%,#f8fcff 58%,#e9fbf8 100%);
      border:1px solid #d4e9fa;
      box-shadow:var(--shadow-md);
      padding:24px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .band strong{
      display:block;
      font-size:20px;
      letter-spacing:-.02em;
      margin-bottom:4px;
    }
    .band p{
      margin:0;
      color:var(--muted);
    }
    .accordion{
      display:grid;
      gap:12px;
    }
    .accordion-item{
      border:1px solid #d7e8f8!important;
      border-radius:20px!important;
      overflow:hidden;
      box-shadow:var(--shadow-sm);
      background:#fff;
    }
    .accordion-button{
      padding:18px 20px;
      font-weight:950;
      color:#14345a;
      background:#fff;
      box-shadow:none!important;
      gap:10px;
    }
    .accordion-button::before{
      content:attr(data-no);
      width:30px;
      height:30px;
      border-radius:12px;
      display:inline-grid;
      place-items:center;
      background:#eaf5ff;
      color:#176fc7;
      font-size:13px;
      font-weight:950;
      flex:0 0 auto;
    }
    .accordion-button:not(.collapsed){
      color:#0f5ea8;
      background:#f1f9ff;
    }
    .accordion-body{
      color:#5b6e86;
      padding:0 20px 20px 60px;
    }
    .lead-section{
      padding:68px 0 76px;
    }
    .lead-card{
      border-radius:var(--radius-xl);
      background:#102c4d;
      color:#fff;
      padding:34px;
      box-shadow:0 24px 70px rgba(16,44,77,.22);
      overflow:hidden;
      position:relative;
    }
    .lead-card::before{
      content:"";
      position:absolute;
      width:360px;
      height:360px;
      border-radius:50%;
      background:rgba(99,167,255,.24);
      right:-120px;
      top:-120px;
    }
    .lead-grid{
      position:relative;
      display:grid;
      grid-template-columns:.8fr 1fr;
      gap:28px;
      align-items:start;
    }
    .lead-card h2{
      margin:0 0 12px;
      font-size:clamp(25px,3.3vw,42px);
      line-height:1.16;
      font-weight:950;
      letter-spacing:-.045em;
    }
    .lead-card p{
      color:#c9d9ea;
      margin:0 0 18px;
    }
    .trust-list{
      list-style:none;
      padding:0;
      margin:22px 0 0;
      display:grid;
      gap:10px;
    }
    .trust-list li{
      display:flex;
      gap:10px;
      align-items:center;
      color:#e6f2ff;
      font-weight:800;
      font-size:14px;
    }
    .trust-list li::before{
      content:"";
      width:10px;
      height:10px;
      border-radius:50%;
      background:#7ee6de;
      box-shadow:0 0 0 6px rgba(126,230,222,.12);
      flex:0 0 auto;
    }
    .lead-form{
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.18);
      border-radius:26px;
      padding:20px;
      backdrop-filter:blur(10px);
    }
    .lead-form .form-control,.lead-form .form-select{
      background:rgba(255,255,255,.96);
      border-color:rgba(255,255,255,.28);
    }
    .form-check-label{
      color:#d5e5f5;
      font-size:14px;
    }
    .site-footer{
      background:#f2f8ff;
      border-top:1px solid var(--line);
      padding:42px 0 24px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .6fr .6fr;
      gap:28px;
      align-items:start;
    }
    .footer-brand .brand-title{
      font-size:22px;
    }
    .footer-text{
      margin:16px 0 0;
      color:#5f7088;
      max-width:560px;
    }
    .footer-col h3{
      font-size:15px;
      margin:0 0 12px;
      font-weight:950;
      color:#17365a;
    }
    .footer-links{
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:#5f7088;
      font-weight:750;
      font-size:14px;
    }
    .footer-links a:hover{
      color:var(--blue-600);
      transform:translateX(2px);
    }
    .copyright{
      margin-top:32px;
      padding-top:18px;
      border-top:1px solid #dceafa;
      display:flex;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      color:#7c8ca2;
      font-size:13px;
      font-weight:750;
    }
    @media (max-width:1024px){
      .masthead{
        flex-wrap:wrap;
        min-height:auto;
      }
      .brand-mark{flex:1 1 auto}
      .nav-divider{display:none}
      .channel-nav{
        order:3;
        flex-basis:100%;
        padding-top:4px;
      }
      .quick-search{flex:0 1 280px}
      .hero-shell,.section-head,.compare-wrap,.lead-grid{
        grid-template-columns:1fr;
      }
      .dashboard-grid{
        grid-template-columns:1fr 1fr;
      }
      .metric-card.large{
        grid-row:auto;
        grid-column:span 2;
      }
      .task-card,.task-card.wide{
        grid-column:span 3;
      }
      .steps{
        grid-template-columns:repeat(2,1fr);
      }
      .scenario-grid{
        grid-template-columns:1fr;
      }
      .footer-grid{
        grid-template-columns:1fr 1fr;
      }
      .footer-grid > div:first-child{
        grid-column:1/-1;
      }
    }
    @media (max-width:768px){
      .site-container{
        width:min(100% - 28px, var(--container));
      }
      .hero{
        padding:42px 0 30px;
      }
      .brand-title{
        font-size:18px;
      }
      .quick-search{
        order:2;
        flex:1 1 100%;
      }
      .hero-shell{
        gap:20px;
      }
      .lead-panel,.lead-card{
        border-radius:26px;
        padding:20px;
      }
      .dashboard-grid,.matrix-grid,.steps{
        grid-template-columns:1fr;
      }
      .metric-card.large,.task-card,.task-card.wide{
        grid-column:auto;
      }
      .section{
        padding:46px 0;
      }
      .compare-table{
        overflow-x:auto;
      }
      .compare-row{
        min-width:620px;
      }
      .scenario-card{
        grid-template-columns:1fr;
      }
      .thumb{
        min-height:130px;
      }
      .band{
        align-items:flex-start;
        flex-direction:column;
      }
      .accordion-body{
        padding-left:20px;
      }
      .footer-grid{
        grid-template-columns:1fr;
      }
    }
    @media (max-width:520px){
      h1{
        font-size:34px;
      }
      .hero-text,.section-desc{
        font-size:15px;
      }
      .hero-actions{
        align-items:stretch;
      }
      .btn-primary-soft,.btn-ghost-soft{
        width:100%;
      }
      .crumbs{
        font-size:13px;
      }
      .metric-number{
        font-size:40px;
      }
      .compare-card,.metric-card,.task-card,.step-card{
        border-radius:22px;
        padding:18px;
      }
      .lead-grid{
        gap:18px;
      }
    }