/* roulang page: index */
:root {
      --bg: #0b0d12;
      --bg-2: #101520;
      --surface: rgba(16, 21, 32, 0.78);
      --surface-2: rgba(255, 255, 255, 0.04);
      --surface-3: rgba(255, 255, 255, 0.07);
      --line: rgba(255, 255, 255, 0.09);
      --line-strong: rgba(255, 255, 255, 0.16);
      --text: #eef2f8;
      --muted: #aab3c4;
      --muted-2: #7f899b;
      --brand: #ff4fb2;
      --brand-2: #7a63ff;
      --brand-3: #2dd8e6;
      --accent: #ff8f62;
      --success: #61d2a6;
      --warning: #ffd166;
      --danger: #ff6b7a;
      --shadow: 0 20px 60px rgba(0, 0, 0, 0.34);
      --shadow-hover: 0 28px 72px rgba(0, 0, 0, 0.52);
      --radius-xl: 30px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --container: 1200px;
      --container-pad: 24px;
      --grad: linear-gradient(135deg, var(--brand-2) 0%, var(--brand) 52%, var(--accent) 100%);
      --grad-soft: linear-gradient(135deg, rgba(122, 99, 255, 0.22), rgba(255, 79, 178, 0.18) 60%, rgba(255, 143, 98, 0.22));
      --focus: 0 0 0 3px rgba(45, 216, 230, 0.22), 0 0 0 1px rgba(45, 216, 230, 0.4) inset;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      color: var(--text);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background:
        radial-gradient(circle at 8% 2%, rgba(122, 99, 255, 0.24), transparent 32%),
        radial-gradient(circle at 88% 0%, rgba(255, 79, 178, 0.18), transparent 28%),
        radial-gradient(circle at 50% 100%, rgba(45, 216, 230, 0.10), transparent 34%),
        linear-gradient(180deg, #0b0d12 0%, #0e1118 45%, #0b0d12 100%);
      overflow-x: hidden;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
      background-size: 88px 88px;
      opacity: 0.24;
      mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 92%);
    }

    ::selection {
      background: rgba(122, 99, 255, 0.35);
      color: #fff;
    }

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

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

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

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

    input,
    textarea {
      color: var(--text);
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--line);
      border-radius: 16px;
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    input::placeholder,
    textarea::placeholder {
      color: rgba(170, 179, 196, 0.72);
    }

    input:focus,
    textarea:focus,
    select:focus {
      border-color: rgba(45, 216, 230, 0.45);
      box-shadow: var(--focus);
      background: rgba(255, 255, 255, 0.06);
    }

    .page-shell {
      position: relative;
      z-index: 1;
    }

    .container {
      width: min(var(--container), calc(100% - var(--container-pad) * 2));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(18px) saturate(150%);
      background: rgba(11, 13, 18, 0.72);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 16px 0 10px;
    }

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

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: var(--grad);
      box-shadow: 0 14px 30px rgba(122, 99, 255, 0.22);
      color: #fff;
      font-weight: 800;
      letter-spacing: 0.02em;
      flex: 0 0 auto;
    }

    .brand-text {
      font-size: 1.02rem;
      font-weight: 800;
      letter-spacing: 0.01em;
      line-height: 1.1;
      white-space: nowrap;
    }

    .header-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 14px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--muted);
      font-size: 0.92rem;
      white-space: nowrap;
    }

    .chip-nav {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 0 0 14px;
      overflow-x: auto;
      scrollbar-width: none;
      -webkit-overflow-scrolling: touch;
    }

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

    .chip {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 11px 16px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.08);
      background: rgba(255, 255, 255, 0.04);
      color: var(--muted);
      font-size: 0.93rem;
      letter-spacing: 0.01em;
      transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
      white-space: nowrap;
    }

    .chip:hover {
      transform: translateY(-1px);
      color: var(--text);
      border-color: rgba(255, 255, 255, 0.16);
      background: rgba(255, 255, 255, 0.06);
    }

    .chip:focus-visible {
      outline: none;
      box-shadow: var(--focus);
    }

    .chip.is-active {
      color: #fff;
      border-color: transparent;
      background: var(--grad);
      box-shadow: 0 12px 26px rgba(122, 99, 255, 0.26);
    }

    main {
      display: block;
    }

    .section {
      position: relative;
      padding: clamp(72px, 7vw, 110px) 0;
    }

    .section-alt {
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.005)),
        linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.015));
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }

    section[id] {
      scroll-margin-top: 110px;
    }

    .section-header {
      display: grid;
      gap: 12px;
      margin-bottom: 28px;
      max-width: 760px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 8px 12px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.09);
      background: rgba(255, 255, 255, 0.04);
      color: rgba(238, 242, 248, 0.82);
      font-size: 0.86rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .section-header h2 {
      margin: 0;
      font-size: clamp(1.7rem, 3vw, 2.65rem);
      line-height: 1.12;
      letter-spacing: -0.03em;
    }

    .section-header p {
      margin: 0;
      color: var(--muted);
      line-height: 1.8;
      font-size: 1.02rem;
      max-width: 68ch;
    }

    .hero {
      padding-top: clamp(34px, 3vw, 54px);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
      gap: 28px;
      align-items: center;
    }

    .hero-copy {
      position: relative;
      display: grid;
      gap: 18px;
      z-index: 1;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      width: fit-content;
      padding: 9px 14px;
      border-radius: 999px;
      color: rgba(255, 255, 255, 0.84);
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
      font-size: 0.92rem;
    }

    .eyebrow .dot {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--success);
      box-shadow: 0 0 0 5px rgba(97, 210, 166, 0.16);
    }

    .hero-copy h1 {
      margin: 0;
      font-size: clamp(2.4rem, 4.7vw, 4.95rem);
      line-height: 1.03;
      letter-spacing: -0.045em;
      max-width: 11.5ch;
    }

    .hero-copy p {
      margin: 0;
      max-width: 62ch;
      color: var(--muted);
      font-size: clamp(1rem, 1.25vw, 1.12rem);
      line-height: 1.9;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 4px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 48px;
      padding: 0 18px;
      border-radius: 16px;
      font-weight: 700;
      letter-spacing: 0.01em;
      transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease, opacity 0.18s ease;
      user-select: none;
      outline: none;
    }

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

    .btn:active {
      transform: translateY(0) scale(0.98);
    }

    .btn:focus-visible {
      box-shadow: var(--focus);
    }

    .btn-primary {
      color: #fff;
      background: var(--grad);
      box-shadow: 0 16px 34px rgba(122, 99, 255, 0.24);
    }

    .btn-primary:hover {
      box-shadow: 0 18px 38px rgba(122, 99, 255, 0.32);
    }

    .btn-secondary {
      color: var(--text);
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.11);
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.06);
      border-color: rgba(255, 255, 255, 0.18);
    }

    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 6px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.08);
      background: rgba(255, 255, 255, 0.05);
      color: rgba(238, 242, 248, 0.86);
      font-size: 0.86rem;
      letter-spacing: 0.01em;
    }

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

    .stage-shell {
      position: relative;
      width: 100%;
      padding: 22px;
      border-radius: var(--radius-xl);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
        rgba(14, 18, 26, 0.72);
      border: 1px solid rgba(255, 255, 255, 0.09);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .stage-shell::before,
    .stage-shell::after {
      content: "";
      position: absolute;
      border-radius: 50%;
      filter: blur(10px);
      pointer-events: none;
    }

    .stage-shell::before {
      width: 240px;
      height: 240px;
      right: -60px;
      top: -60px;
      background: radial-gradient(circle, rgba(255, 79, 178, 0.2), transparent 68%);
    }

    .stage-shell::after {
      width: 260px;
      height: 260px;
      left: -80px;
      bottom: -100px;
      background: radial-gradient(circle, rgba(45, 216, 230, 0.14), transparent 68%);
    }

    .stage-topline {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 18px;
      position: relative;
      z-index: 1;
    }

    .stage-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 9px 12px;
      border-radius: 999px;
      font-size: 0.84rem;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: rgba(238, 242, 248, 0.82);
    }

    .stage-pill-soft {
      color: #fff;
      background: linear-gradient(135deg, rgba(122, 99, 255, 0.22), rgba(255, 79, 178, 0.18));
      border-color: rgba(255, 255, 255, 0.12);
    }

    .stage-focus {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(180px, 0.85fr);
      gap: 16px;
      align-items: stretch;
      z-index: 1;
    }

    .stage-card,
    .mini-tile,
    .track-row {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(10px);
    }

    .stage-card {
      border-radius: 26px;
      padding: 22px;
      min-height: 280px;
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
    }

    .stage-card-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      color: rgba(238, 242, 248, 0.88);
      font-weight: 700;
      margin-bottom: 20px;
    }

    .stage-card-head strong {
      font-size: clamp(2rem, 4vw, 3rem);
      line-height: 1;
      letter-spacing: -0.04em;
      color: #fff;
    }

    .stage-meter {
      position: relative;
      height: 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.08);
      overflow: hidden;
      margin: 14px 0 14px;
    }

    .stage-meter span {
      position: absolute;
      inset: 0 auto 0 0;
      width: 74%;
      border-radius: inherit;
      background: var(--grad);
      box-shadow: 0 0 22px rgba(255, 79, 178, 0.22);
    }

    .stage-caption {
      color: var(--muted);
      line-height: 1.7;
      font-size: 0.96rem;
    }

    .stage-aside {
      display: grid;
      gap: 12px;
    }

    .mini-tile {
      border-radius: 22px;
      padding: 18px 16px;
      display: grid;
      gap: 8px;
      min-height: 84px;
      align-content: center;
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.14);
    }

    .mini-tag {
      color: rgba(238, 242, 248, 0.74);
      font-size: 0.82rem;
    }

    .mini-tile strong {
      font-size: 1.55rem;
      line-height: 1;
      letter-spacing: -0.04em;
    }

    .stage-track {
      margin-top: 16px;
      display: grid;
      gap: 10px;
      position: relative;
      z-index: 1;
    }

    .track-row {
      border-radius: 18px;
      padding: 12px 14px;
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 10px;
      align-items: center;
      color: rgba(238, 242, 248, 0.88);
      font-size: 0.92rem;
    }

    .track-row i {
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
      display: block;
    }

    .track-row b {
      color: #fff;
      font-weight: 700;
      letter-spacing: 0.02em;
    }

    .pain-grid,
    .solution-grid,
    .results-grid,
    .testimonials-grid,
    .faq-grid {
      display: grid;
      gap: 18px;
    }

    .pain-grid {
      grid-template-columns: repeat(12, minmax(0, 1fr));
    }

    .pain-card {
      grid-column: span 3;
      min-height: 214px;
      padding: 22px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)),
        rgba(16, 21, 32, 0.72);
      border: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.16);
      display: grid;
      gap: 14px;
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
      position: relative;
      overflow: hidden;
    }

    .pain-card::after {
      content: "";
      position: absolute;
      inset: auto -40px -55px auto;
      width: 130px;
      height: 130px;
      background: radial-gradient(circle, rgba(255, 79, 178, 0.12), transparent 68%);
      pointer-events: none;
    }

    .pain-card:hover,
    .solution-card:hover,
    .news-card:hover,
    .testimonial-card:hover {
      transform: translateY(-4px);
      border-color: rgba(255, 255, 255, 0.16);
      box-shadow: var(--shadow-hover);
    }

    .card-rank {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: fit-content;
      min-width: 42px;
      height: 30px;
      border-radius: 999px;
      padding: 0 12px;
      background: rgba(255, 255, 255, 0.07);
      color: rgba(255, 255, 255, 0.82);
      font-size: 0.84rem;
      letter-spacing: 0.02em;
    }

    .pain-card h3,
    .solution-card h3,
    .testimonial-card h3,
    .news-card h3,
    .cta-card h3 {
      margin: 0;
      font-size: 1.12rem;
      line-height: 1.35;
      letter-spacing: -0.02em;
    }

    .card-text,
    .solution-card p,
    .pain-card p,
    .testimonial-card p,
    .news-card p,
    .cta-card p,
    .latest-aside p,
    .faq-copy {
      margin: 0;
      color: var(--muted);
      line-height: 1.8;
      font-size: 0.98rem;
    }

    .card-icon {
      width: 44px;
      height: 44px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, rgba(122, 99, 255, 0.25), rgba(255, 79, 178, 0.2));
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: #fff;
      font-size: 1.08rem;
      box-shadow: 0 12px 28px rgba(122, 99, 255, 0.12);
    }

    .pain-card:nth-child(2n) {
      transform: translateY(18px);
    }

    .pain-card:nth-child(3n) {
      grid-column: span 4;
    }

    .pain-card:nth-child(4n) {
      grid-column: span 5;
    }

    .solution-grid {
      grid-template-columns: repeat(12, minmax(0, 1fr));
      align-items: stretch;
    }

    .solution-card {
      padding: 24px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)),
        rgba(16, 21, 32, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.14);
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
      position: relative;
      overflow: hidden;
    }

    .solution-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 40%);
      pointer-events: none;
    }

    .solution-card-wide {
      grid-column: span 7;
      min-height: 320px;
      display: grid;
      gap: 16px;
    }

    .solution-card-small {
      grid-column: span 5;
      display: grid;
      gap: 16px;
    }

    .solution-stack {
      grid-column: span 4;
      display: grid;
      gap: 18px;
    }

    .solution-card .badge {
      width: fit-content;
    }

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

    .check-list li {
      position: relative;
      padding-left: 28px;
      color: rgba(238, 242, 248, 0.92);
      line-height: 1.7;
    }

    .check-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      width: 18px;
      height: 18px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      font-size: 0.78rem;
      color: #fff;
      background: linear-gradient(135deg, rgba(97, 210, 166, 0.95), rgba(45, 216, 230, 0.92));
      box-shadow: 0 10px 20px rgba(97, 210, 166, 0.18);
    }

    .mini-grid {
      display: grid;
      gap: 14px;
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .mini-card {
      min-height: 126px;
      padding: 18px;
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      display: grid;
      gap: 10px;
      align-content: start;
    }

    .mini-card strong {
      font-size: 1.05rem;
      letter-spacing: -0.02em;
    }

    .mini-card span {
      color: var(--muted);
      line-height: 1.7;
      font-size: 0.93rem;
    }

    .solution-stat {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.05);
      color: rgba(238, 242, 248, 0.84);
      font-size: 0.86rem;
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .results-grid {
      grid-template-columns: minmax(0, 1.18fr) minmax(300px, 0.82fr);
      align-items: stretch;
    }

    .kpi-board,
    .results-side,
    .latest-aside,
    .cta-card {
      border-radius: var(--radius-xl);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03)),
        rgba(16, 21, 32, 0.74);
      border: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 16px 34px rgba(0, 0, 0, 0.18);
    }

    .kpi-board {
      padding: 24px;
      display: grid;
      gap: 18px;
      overflow: hidden;
      position: relative;
    }

    .kpi-board::before {
      content: "";
      position: absolute;
      inset: auto -120px -120px auto;
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(255, 79, 178, 0.12), transparent 70%);
      pointer-events: none;
    }

    .kpi-top {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: center;
      flex-wrap: wrap;
    }

    .kpi-top h3 {
      margin: 0;
      font-size: 1.2rem;
      letter-spacing: -0.02em;
    }

    .kpi-ring {
      width: 90px;
      height: 90px;
      border-radius: 50%;
      background:
        conic-gradient(from 180deg, #ff4fb2 0 32%, #7a63ff 32% 68%, #2dd8e6 68% 100%);
      display: grid;
      place-items: center;
      box-shadow: 0 12px 30px rgba(122, 99, 255, 0.22);
    }

    .kpi-ring::after {
      content: "";
      width: 66px;
      height: 66px;
      border-radius: 50%;
      background: #0f1420;
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .kpi-metrics {
      display: grid;
      gap: 14px;
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .kpi-card {
      padding: 18px;
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      display: grid;
      gap: 8px;
    }

    .kpi-card strong {
      font-size: clamp(1.45rem, 2.4vw, 2rem);
      line-height: 1;
      letter-spacing: -0.04em;
    }

    .kpi-card span {
      color: var(--muted);
      line-height: 1.6;
      font-size: 0.92rem;
    }

    .kpi-bars {
      display: grid;
      gap: 12px;
    }

    .bar-row {
      display: grid;
      gap: 8px;
    }

    .bar-row .bar-label {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      color: rgba(238, 242, 248, 0.84);
      font-size: 0.92rem;
    }

    .bar {
      height: 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.06);
      overflow: hidden;
    }

    .bar span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: var(--grad);
      box-shadow: 0 0 18px rgba(255, 79, 178, 0.18);
    }

    .results-side {
      padding: 24px;
      display: grid;
      gap: 14px;
      align-content: start;
    }

    .result-note {
      display: grid;
      gap: 12px;
      padding: 18px;
      border-radius: 22px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .result-note h3 {
      margin: 0;
      font-size: 1.05rem;
    }

    .result-note p {
      margin: 0;
      color: var(--muted);
      line-height: 1.8;
      font-size: 0.95rem;
    }

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

    .stack-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 15px 16px;
      border-radius: 18px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .stack-item strong {
      font-size: 0.98rem;
    }

    .stack-item span {
      color: var(--muted);
      font-size: 0.92rem;
    }

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

    .testimonial-card {
      padding: 22px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)),
        rgba(16, 21, 32, 0.72);
      border: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.14);
      display: grid;
      gap: 16px;
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
    }

    .testimonial-head {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .avatar {
      width: 50px;
      height: 50px;
      border-radius: 18px;
      background: var(--grad);
      display: grid;
      place-items: center;
      font-weight: 800;
      color: #fff;
      flex: 0 0 auto;
      box-shadow: 0 12px 24px rgba(122, 99, 255, 0.24);
    }

    .persona {
      display: grid;
      gap: 5px;
      min-width: 0;
    }

    .persona strong {
      font-size: 1rem;
      letter-spacing: -0.02em;
    }

    .persona span {
      color: var(--muted);
      font-size: 0.9rem;
    }

    .rating {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      color: var(--warning);
      font-size: 0.9rem;
    }

    .quote {
      margin: 0;
      color: rgba(238, 242, 248, 0.92);
      line-height: 1.84;
      font-size: 0.98rem;
    }

    .latest-layout {
      display: grid;
      grid-template-columns: minmax(280px, 0.86fr) minmax(0, 1.14fr);
      gap: 18px;
      align-items: start;
    }

    .latest-aside {
      padding: 24px;
      display: grid;
      gap: 16px;
      position: sticky;
      top: 124px;
    }

    .latest-aside h3 {
      margin: 0;
      font-size: 1.45rem;
      line-height: 1.22;
      letter-spacing: -0.03em;
    }

    .latest-search {
      display: grid;
      gap: 10px;
      padding: 16px;
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .mini-form {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 10px;
    }

    .mini-form input {
      min-height: 48px;
      padding: 0 14px;
      border-radius: 16px;
    }

    .mini-form button {
      min-height: 48px;
      padding: 0 16px;
      border-radius: 16px;
      color: #fff;
      background: var(--grad);
      font-weight: 700;
      box-shadow: 0 14px 30px rgba(122, 99, 255, 0.22);
      transition: transform 0.18s ease, box-shadow 0.18s ease;
    }

    .mini-form button:hover {
      transform: translateY(-1px);
      box-shadow: 0 16px 34px rgba(122, 99, 255, 0.28);
    }

    .aside-points {
      display: grid;
      gap: 10px;
    }

    .aside-point {
      display: flex;
      align-items: center;
      gap: 10px;
      color: rgba(238, 242, 248, 0.88);
      font-size: 0.94rem;
    }

    .aside-point .mini-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--brand-3);
      box-shadow: 0 0 0 5px rgba(45, 216, 230, 0.14);
      flex: 0 0 auto;
    }

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

    .news-card {
      padding: 20px 22px;
      border-radius: 24px;
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)),
        rgba(16, 21, 32, 0.72);
      border: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.14);
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
      display: grid;
      gap: 12px;
    }

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

    .news-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 7px 11px;
      border-radius: 999px;
      background: rgba(122, 99, 255, 0.18);
      color: rgba(255, 255, 255, 0.9);
      border: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.84rem;
    }

    .news-time {
      color: var(--muted-2);
      font-size: 0.9rem;
    }

    .news-card h3 a {
      transition: color 0.18s ease, opacity 0.18s ease;
    }

    .news-card h3 a:hover {
      color: #fff;
      opacity: 0.94;
    }

    .news-card p {
      max-width: 74ch;
    }

    .news-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }

    .news-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #fff;
      font-weight: 700;
    }

    .news-link::after {
      content: "→";
      transition: transform 0.18s ease;
    }

    .news-link:hover::after {
      transform: translateX(2px);
    }

    .news-note {
      color: var(--muted-2);
      font-size: 0.88rem;
    }

    .empty-state {
      padding: 26px;
      border-radius: 24px;
      border: 1px dashed rgba(255, 255, 255, 0.16);
      background: rgba(255, 255, 255, 0.03);
      color: rgba(238, 242, 248, 0.92);
      font-size: 1rem;
      line-height: 1.8;
    }

    .faq-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
      align-items: start;
    }

    .faq-card {
      padding: 0;
      overflow: hidden;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)),
        rgba(16, 21, 32, 0.72);
      border: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.14);
    }

    details {
      display: block;
    }

    summary {
      list-style: none;
      cursor: pointer;
      padding: 20px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      font-weight: 700;
      line-height: 1.5;
      outline: none;
    }

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

    summary::after {
      content: "+";
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: rgba(255, 255, 255, 0.06);
      color: #fff;
      transition: transform 0.18s ease, background 0.18s ease;
    }

    details[open] summary::after {
      content: "–";
      background: rgba(255, 79, 178, 0.18);
    }

    summary:focus-visible {
      box-shadow: var(--focus);
    }

    .faq-answer {
      padding: 0 22px 20px;
    }

    .faq-answer p {
      margin: 0;
      color: var(--muted);
      line-height: 1.85;
      font-size: 0.98rem;
    }

    .cta-wrap {
      padding-bottom: 84px;
    }

    .cta-card {
      position: relative;
      overflow: hidden;
      padding: clamp(28px, 5vw, 42px);
      background:
        radial-gradient(circle at 0% 0%, rgba(255, 79, 178, 0.2), transparent 30%),
        radial-gradient(circle at 100% 0%, rgba(45, 216, 230, 0.18), transparent 28%),
        linear-gradient(135deg, rgba(122, 99, 255, 0.34), rgba(255, 79, 178, 0.24) 56%, rgba(255, 143, 98, 0.28));
      border: 1px solid rgba(255, 255, 255, 0.14);
      box-shadow: 0 22px 60px rgba(0, 0, 0, 0.28);
    }

    .cta-card::before {
      content: "";
      position: absolute;
      inset: auto -50px -80px auto;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255, 255, 255, 0.14), transparent 65%);
      pointer-events: none;
    }

    .cta-inner {
      position: relative;
      z-index: 1;
      display: grid;
      gap: 18px;
      max-width: 760px;
    }

    .cta-card h3 {
      font-size: clamp(1.6rem, 3vw, 2.5rem);
      line-height: 1.1;
      letter-spacing: -0.03em;
    }

    .cta-card p {
      color: rgba(255, 255, 255, 0.88);
      max-width: 66ch;
    }

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

    .cta-actions .btn-secondary {
      background: rgba(15, 20, 30, 0.22);
      border-color: rgba(255, 255, 255, 0.16);
      color: #fff;
    }

    .site-footer {
      padding: 30px 0 42px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      background: rgba(8, 10, 15, 0.42);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(180px, 0.8fr));
      gap: 18px;
      align-items: start;
    }

    .footer-brand {
      display: grid;
      gap: 14px;
      max-width: 52ch;
    }

    .footer-brand p {
      margin: 0;
      color: var(--muted);
      line-height: 1.8;
    }

    .footer-title {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 1.05rem;
    }

    .footer-column {
      display: grid;
      gap: 12px;
      align-content: start;
    }

    .footer-column h4 {
      margin: 0;
      font-size: 1rem;
      letter-spacing: -0.01em;
    }

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

    .footer-links a {
      color: var(--muted);
      transition: color 0.18s ease, transform 0.18s ease;
      width: fit-content;
    }

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

    .footer-meta {
      display: grid;
      gap: 8px;
      color: var(--muted);
      line-height: 1.7;
      font-size: 0.94rem;
    }

    .footer-meta strong {
      color: var(--text);
    }

    .footer-legal {
      margin-top: 18px;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      color: var(--muted-2);
      font-size: 0.9rem;
    }

    .footer-legal .domain {
      color: rgba(238, 242, 248, 0.88);
    }

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

    @media (max-width: 1280px) {
      .hero-grid {
        grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
      }

      .pain-card {
        grid-column: span 4;
      }

      .pain-card:nth-child(4n) {
        grid-column: span 4;
      }

      .latest-layout {
        grid-template-columns: minmax(280px, 0.88fr) minmax(0, 1.12fr);
      }
    }

    @media (max-width: 1024px) {
      .hero-grid,
      .results-grid,
      .latest-layout,
      .footer-grid {
        grid-template-columns: 1fr;
      }

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

      .pain-grid {
        grid-template-columns: repeat(6, minmax(0, 1fr));
      }

      .pain-card,
      .pain-card:nth-child(3n),
      .pain-card:nth-child(4n) {
        grid-column: span 3;
        transform: none;
      }

      .solution-grid {
        grid-template-columns: repeat(6, minmax(0, 1fr));
      }

      .solution-card-wide,
      .solution-card-small,
      .solution-stack {
        grid-column: span 6;
      }

      .testimonials-grid,
      .faq-grid {
        grid-template-columns: 1fr;
      }

      .latest-aside {
        position: static;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        flex-wrap: wrap;
      }

      .header-badge {
        width: 100%;
        justify-content: center;
      }

      .brand-text {
        font-size: 0.98rem;
      }

      .section {
        padding: 64px 0;
      }

      .hero-copy h1 {
        max-width: 100%;
        font-size: clamp(2.15rem, 11vw, 3.35rem);
      }

      .stage-focus {
        grid-template-columns: 1fr;
      }

      .mini-grid,
      .kpi-metrics {
        grid-template-columns: 1fr 1fr;
      }

      .pain-grid,
      .solution-grid {
        grid-template-columns: 1fr;
      }

      .pain-card,
      .pain-card:nth-child(3n),
      .pain-card:nth-child(4n),
      .solution-card-wide,
      .solution-card-small,
      .solution-stack {
        grid-column: auto;
      }

      .pain-card:nth-child(2n) {
        transform: none;
      }

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

    @media (max-width: 520px) {
      .container {
        width: min(100% - 20px, var(--container));
      }

      .header-inner {
        padding: 14px 0 10px;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 13px;
      }

      .chip {
        padding: 10px 14px;
        font-size: 0.9rem;
      }

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

      .btn {
        width: 100%;
      }

      .kpi-metrics,
      .mini-grid {
        grid-template-columns: 1fr;
      }

      .news-top,
      .news-bottom {
        align-items: flex-start;
      }

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

      .mini-form {
        grid-template-columns: 1fr;
      }

      .mini-form button {
        width: 100%;
      }
    }

    @media (max-width: 480px) {
      .brand-text {
        white-space: normal;
        font-size: 0.94rem;
      }

      .header-badge {
        font-size: 0.84rem;
      }

      .section-header h2,
      .cta-card h3 {
        word-break: break-word;
      }

      .pain-card,
      .solution-card,
      .testimonial-card,
      .news-card,
      .faq-card {
        border-radius: 22px;
      }

      .stage-shell,
      .kpi-board,
      .results-side,
      .latest-aside,
      .cta-card {
        border-radius: 24px;
      }

      .stage-card {
        min-height: 240px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }

      *,
      *::before,
      *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
      }
    }

/* roulang page: article */
:root {
      --bg: #0b0d12;
      --bg-2: #101520;
      --surface: rgba(16, 21, 32, 0.78);
      --surface-2: rgba(255, 255, 255, 0.04);
      --surface-3: rgba(255, 255, 255, 0.07);
      --line: rgba(255, 255, 255, 0.09);
      --line-strong: rgba(255, 255, 255, 0.16);
      --text: #eef2f8;
      --muted: #aab3c4;
      --muted-2: #7f899b;
      --brand: #ff4fb2;
      --brand-2: #7a63ff;
      --brand-3: #2dd8e6;
      --accent: #ff8f62;
      --success: #61d2a6;
      --warning: #ffd166;
      --danger: #ff6b7a;
      --shadow: 0 20px 60px rgba(0, 0, 0, 0.34);
      --shadow-hover: 0 28px 72px rgba(0, 0, 0, 0.52);
      --radius-xl: 30px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --container: 1200px;
      --container-pad: 24px;
      --grad: linear-gradient(135deg, var(--brand-2) 0%, var(--brand) 52%, var(--accent) 100%);
      --grad-soft: linear-gradient(135deg, rgba(122, 99, 255, 0.22), rgba(255, 79, 178, 0.18) 60%, rgba(255, 143, 98, 0.22));
      --focus: 0 0 0 3px rgba(45, 216, 230, 0.22), 0 0 0 1px rgba(45, 216, 230, 0.4) inset;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      color: var(--text);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background:
        radial-gradient(circle at 8% 2%, rgba(122, 99, 255, 0.24), transparent 32%),
        radial-gradient(circle at 88% 0%, rgba(255, 79, 178, 0.18), transparent 28%),
        radial-gradient(circle at 50% 100%, rgba(45, 216, 230, 0.10), transparent 34%),
        linear-gradient(180deg, #0b0d12 0%, #0e1118 45%, #0b0d12 100%);
      overflow-x: hidden;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
      background-size: 88px 88px;
      opacity: 0.24;
      mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 92%);
      z-index: 0;
    }

    ::selection {
      background: rgba(122, 99, 255, 0.35);
      color: #fff;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
    }

    a:hover {
      color: #fff;
    }

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

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

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

    input,
    textarea {
      color: var(--text);
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--line);
      border-radius: 16px;
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    input::placeholder,
    textarea::placeholder {
      color: rgba(170, 179, 196, 0.72);
    }

    input:focus,
    textarea:focus,
    select:focus {
      border-color: rgba(45, 216, 230, 0.45);
      box-shadow: var(--focus);
      background: rgba(255, 255, 255, 0.06);
    }

    h1,
    h2,
    h3,
    h4,
    p,
    ul,
    ol,
    dl,
    dt,
    dd,
    figure {
      margin: 0;
    }

    .container {
      width: min(var(--container), calc(100% - var(--container-pad) * 2));
      margin: 0 auto;
      position: relative;
      z-index: 1;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(18px) saturate(150%);
      background: rgba(11, 13, 18, 0.72);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 16px 0 10px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      outline: none;
      border-radius: 18px;
    }

    .brand:focus-visible {
      box-shadow: var(--focus);
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: var(--grad);
      box-shadow: 0 14px 30px rgba(122, 99, 255, 0.22);
      color: #fff;
      font-weight: 800;
      letter-spacing: 0.02em;
      flex: 0 0 auto;
    }

    .brand-text {
      font-size: 1.02rem;
      font-weight: 800;
      letter-spacing: 0.01em;
      line-height: 1.1;
      white-space: nowrap;
    }

    .header-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 14px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--muted);
      font-size: 0.92rem;
      white-space: nowrap;
    }

    .chip-nav {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 0 0 14px;
      overflow-x: auto;
      scrollbar-width: none;
      -webkit-overflow-scrolling: touch;
      mask-image: linear-gradient(90deg, transparent, #000 2%, #000 98%, transparent);
    }

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

    .chip {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 11px 16px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.08);
      background: rgba(255, 255, 255, 0.04);
      color: var(--muted);
      font-size: 0.93rem;
      letter-spacing: 0.01em;
      transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
      white-space: nowrap;
      outline: none;
    }

    .chip:hover {
      transform: translateY(-1px);
      color: var(--text);
      border-color: rgba(255, 255, 255, 0.16);
      background: rgba(255, 255, 255, 0.06);
    }

    .chip:focus-visible {
      box-shadow: var(--focus);
    }

    .chip.is-active {
      color: #fff;
      border-color: transparent;
      background: var(--grad);
      box-shadow: 0 12px 26px rgba(122, 99, 255, 0.26);
    }

    main {
      display: block;
      position: relative;
      z-index: 1;
    }

    .section {
      position: relative;
      padding: clamp(68px, 6.4vw, 104px) 0;
    }

    .section-alt {
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01)),
        radial-gradient(circle at 16% 0%, rgba(122, 99, 255, 0.10), transparent 26%);
    }

    .section-head {
      display: grid;
      gap: 14px;
      max-width: 760px;
      margin-bottom: 28px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 8px 13px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--muted);
      font-size: 0.9rem;
      letter-spacing: 0.03em;
    }

    .section-head h2 {
      font-size: clamp(1.56rem, 2.5vw, 2.3rem);
      line-height: 1.18;
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .section-head p {
      color: var(--muted);
      line-height: 1.8;
      font-size: 1rem;
      max-width: 66ch;
    }

    .article-hero {
      display: grid;
      grid-template-columns: minmax(0, 1.22fr) minmax(320px, 0.78fr);
      gap: 24px;
      align-items: stretch;
    }

    .hero-copy,
    .hero-panel,
    .content-card,
    .aside-card,
    .info-card,
    .metric-card,
    .quote-card,
    .latest-card,
    .faq-item,
    .cta-card,
    .empty-state {
      border: 1px solid var(--line);
      background: var(--surface);
      backdrop-filter: blur(16px) saturate(140%);
      box-shadow: var(--shadow);
    }

    .hero-copy {
      position: relative;
      border-radius: var(--radius-xl);
      padding: clamp(24px, 3vw, 40px);
      overflow: hidden;
    }

    .hero-copy::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 85% 14%, rgba(255, 79, 178, 0.16), transparent 20%),
        radial-gradient(circle at 15% 0%, rgba(45, 216, 230, 0.10), transparent 25%);
      pointer-events: none;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      color: var(--muted);
      font-size: 0.92rem;
      margin-bottom: 18px;
      position: relative;
      z-index: 1;
    }

    .breadcrumb span {
      color: rgba(170, 179, 196, 0.55);
    }

    .article-title {
      position: relative;
      z-index: 1;
      font-size: clamp(2rem, 4.2vw, 4.1rem);
      line-height: 1.08;
      font-weight: 900;
      letter-spacing: -0.03em;
      margin-bottom: 18px;
      text-wrap: balance;
    }

    .hero-summary {
      position: relative;
      z-index: 1;
      color: rgba(238, 242, 248, 0.86);
      line-height: 1.9;
      font-size: 1.04rem;
      max-width: 66ch;
    }

    .hero-meta {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .meta-pill,
    .tag-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 14px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--muted);
      font-size: 0.92rem;
      line-height: 1;
    }

    .hero-actions {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 48px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 700;
      letter-spacing: 0.01em;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
      outline: none;
      user-select: none;
    }

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

    .btn:active {
      transform: translateY(0) scale(0.99);
    }

    .btn:focus-visible {
      box-shadow: var(--focus);
    }

    .btn-primary {
      background: var(--grad);
      color: #fff;
      box-shadow: 0 18px 34px rgba(122, 99, 255, 0.24);
    }

    .btn-primary:hover {
      box-shadow: 0 22px 40px rgba(122, 99, 255, 0.32);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.05);
      color: var(--text);
      border: 1px solid var(--line);
    }

    .btn-secondary:hover {
      border-color: rgba(255, 255, 255, 0.16);
      background: rgba(255, 255, 255, 0.07);
    }

    .hero-panel {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-xl);
      padding: 22px;
      background:
        linear-gradient(180deg, rgba(16, 21, 32, 0.92), rgba(16, 21, 32, 0.76)),
        radial-gradient(circle at 100% 0%, rgba(255, 79, 178, 0.20), transparent 34%),
        radial-gradient(circle at 0% 100%, rgba(45, 216, 230, 0.12), transparent 34%);
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 35%),
        radial-gradient(circle at 50% 10%, rgba(122, 99, 255, 0.16), transparent 26%);
      opacity: 0.75;
    }

    .panel-top {
      position: relative;
      z-index: 1;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 18px;
    }

    .panel-label {
      font-weight: 800;
      letter-spacing: 0.02em;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(97, 210, 166, 0.12);
      color: #c8f7e5;
      border: 1px solid rgba(97, 210, 166, 0.22);
      font-size: 0.88rem;
      white-space: nowrap;
    }

    .panel-feature {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 104px 1fr;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border-radius: 22px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .panel-feature .big-mark {
      width: 104px;
      height: 104px;
      border-radius: 28px;
      background: var(--grad);
      display: grid;
      place-items: center;
      box-shadow: 0 16px 30px rgba(122, 99, 255, 0.24);
      color: #fff;
      font-size: 2rem;
      font-weight: 900;
      letter-spacing: 0.02em;
    }

    .panel-feature h3 {
      font-size: 1.12rem;
      line-height: 1.35;
      margin-bottom: 8px;
    }

    .panel-feature p {
      color: var(--muted);
      line-height: 1.76;
      font-size: 0.95rem;
    }

    .panel-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
      margin-top: 14px;
    }

    .mini-stat {
      padding: 16px;
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      min-height: 110px;
    }

    .mini-stat strong {
      display: block;
      font-size: 1.42rem;
      font-weight: 900;
      letter-spacing: -0.02em;
      margin-bottom: 8px;
    }

    .mini-stat span {
      display: inline-flex;
      margin-bottom: 10px;
      color: var(--muted);
      font-size: 0.92rem;
    }

    .mini-stat p {
      color: var(--muted-2);
      line-height: 1.72;
      font-size: 0.92rem;
    }

    .progress-box {
      position: relative;
      z-index: 1;
      margin-top: 14px;
      padding: 16px;
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .progress-line {
      height: 10px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.08);
      overflow: hidden;
    }

    .progress-line span {
      display: block;
      height: 100%;
      width: 74%;
      border-radius: inherit;
      background: var(--grad);
      box-shadow: 0 12px 24px rgba(122, 99, 255, 0.24);
    }

    .progress-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: 10px;
      color: var(--muted);
      font-size: 0.9rem;
    }

    .info-grid {
      display: grid;
      grid-template-columns: repeat(12, minmax(0, 1fr));
      gap: 18px;
    }

    .info-card {
      grid-column: span 3;
      border-radius: var(--radius-lg);
      padding: 22px;
      position: relative;
      overflow: hidden;
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .info-card::before {
      content: "";
      position: absolute;
      inset: auto auto 0 0;
      width: 100%;
      height: 44%;
      background: radial-gradient(circle at 20% 0%, rgba(122, 99, 255, 0.15), transparent 50%);
      pointer-events: none;
    }

    .info-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--line-strong);
    }

    .card-index {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 44px;
      height: 32px;
      padding: 0 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: #fff;
      font-weight: 800;
      font-size: 0.9rem;
      margin-bottom: 14px;
      position: relative;
      z-index: 1;
    }

    .info-card h3 {
      position: relative;
      z-index: 1;
      font-size: 1.12rem;
      line-height: 1.35;
      margin-bottom: 10px;
    }

    .info-card p {
      position: relative;
      z-index: 1;
      color: var(--muted);
      line-height: 1.8;
      font-size: 0.95rem;
    }

    .info-card .mini-tag {
      position: relative;
      z-index: 1;
      display: inline-flex;
      margin-top: 14px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(122, 99, 255, 0.12);
      border: 1px solid rgba(122, 99, 255, 0.18);
      color: #d7d0ff;
      font-size: 0.86rem;
    }

    .info-card.span-6 {
      grid-column: span 6;
    }

    .info-card.span-4 {
      grid-column: span 4;
    }

    .content-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.55fr) minmax(290px, 0.85fr);
      gap: 24px;
      align-items: start;
    }

    .content-card {
      border-radius: var(--radius-xl);
      padding: clamp(22px, 2.6vw, 36px);
      overflow: hidden;
    }

    .article-content {
      color: var(--text);
      line-height: 1.95;
      font-size: 1.02rem;
    }

    .article-content > :first-child {
      margin-top: 0;
    }

    .article-content :where(h2, h3) {
      line-height: 1.25;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin: 1.7em 0 0.8em;
    }

    .article-content h2 {
      font-size: clamp(1.42rem, 2vw, 2rem);
      padding-top: 0.1em;
    }

    .article-content h3 {
      font-size: 1.18rem;
    }

    .article-content p {
      margin: 0.95em 0;
      color: rgba(238, 242, 248, 0.9);
    }

    .article-content :where(ul, ol) {
      padding-left: 1.2em;
      margin: 1em 0;
    }

    .article-content li {
      margin: 0.45em 0;
      color: rgba(238, 242, 248, 0.9);
    }

    .article-content blockquote {
      margin: 1.4em 0;
      padding: 18px 20px;
      border-left: 4px solid transparent;
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)),
        linear-gradient(135deg, rgba(122, 99, 255, 0.16), rgba(255, 79, 178, 0.08));
      border-radius: 18px;
      color: #f1f4fa;
    }

    .article-content strong {
      color: #fff;
    }

    .article-content a {
      color: #fff;
      text-decoration: underline;
      text-decoration-color: rgba(255, 255, 255, 0.25);
      text-underline-offset: 0.18em;
    }

    .article-content a:hover {
      text-decoration-color: rgba(255, 255, 255, 0.6);
    }

    .article-content code {
      padding: 0.18rem 0.42rem;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.07);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: #fff;
      font-size: 0.93em;
    }

    .article-content pre {
      margin: 1.3em 0;
      padding: 18px;
      border-radius: 18px;
      background: #0a0d13;
      color: #dce4f3;
      border: 1px solid var(--line);
      overflow: auto;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
    }

    .article-content pre code {
      padding: 0;
      background: none;
      border: 0;
      color: inherit;
    }

    .article-content img {
      margin: 1.2em 0;
      border-radius: 18px;
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .article-content table {
      width: 100%;
      border-collapse: collapse;
      display: block;
      overflow-x: auto;
      margin: 1.3em 0;
      border-radius: 18px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, 0.03);
    }

    .article-content th,
    .article-content td {
      padding: 12px 14px;
      border-bottom: 1px solid var(--line);
      text-align: left;
      white-space: nowrap;
    }

    .article-content th {
      color: #fff;
      background: rgba(255, 255, 255, 0.04);
    }

    .article-content tr:last-child td {
      border-bottom: 0;
    }

    .sidebar {
      display: grid;
      gap: 18px;
      position: sticky;
      top: 102px;
    }

    .aside-card {
      border-radius: var(--radius-lg);
      padding: 20px;
    }

    .aside-card h3 {
      font-size: 1.08rem;
      margin-bottom: 14px;
      line-height: 1.3;
    }

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

    .meta-list li {
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--muted);
      line-height: 1.7;
    }

    .meta-list strong {
      color: #fff;
    }

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

    .side-links a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 14px;
      border-radius: 14px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--text);
    }

    .side-links a:hover {
      transform: translateY(-1px);
      border-color: rgba(255, 255, 255, 0.16);
      background: rgba(255, 255, 255, 0.06);
    }

    .side-links span {
      color: var(--muted);
      font-size: 0.9rem;
    }

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

    .metric-card {
      border-radius: var(--radius-lg);
      padding: 22px;
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--line-strong);
    }

    .metric-card strong {
      display: block;
      font-size: clamp(1.8rem, 3vw, 2.5rem);
      font-weight: 900;
      letter-spacing: -0.03em;
      margin-bottom: 10px;
    }

    .metric-card span {
      display: inline-flex;
      margin-bottom: 10px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: #fff;
      font-size: 0.88rem;
    }

    .metric-card p {
      color: var(--muted);
      line-height: 1.8;
    }

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

    .quote-card {
      border-radius: var(--radius-lg);
      padding: 22px;
      position: relative;
      overflow: hidden;
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .quote-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--line-strong);
    }

    .quote-top {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .avatar {
      width: 48px;
      height: 48px;
      border-radius: 16px;
      background: var(--grad);
      box-shadow: 0 14px 30px rgba(122, 99, 255, 0.22);
      display: grid;
      place-items: center;
      color: #fff;
      font-weight: 900;
      letter-spacing: 0.04em;
      flex: 0 0 auto;
    }

    .quote-top h3 {
      font-size: 1.04rem;
      line-height: 1.25;
      margin-bottom: 4px;
    }

    .quote-top p {
      color: var(--muted);
      font-size: 0.9rem;
      line-height: 1.4;
    }

    .quote-card blockquote {
      margin-top: 14px;
      color: rgba(238, 242, 248, 0.92);
      line-height: 1.86;
    }

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

    .quote-meta .tag-pill {
      background: rgba(255, 255, 255, 0.04);
    }

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

    .latest-card {
      border-radius: 24px;
      padding: 20px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 16px;
      align-items: center;
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .latest-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--line-strong);
    }

    .latest-title {
      font-size: 1.08rem;
      font-weight: 800;
      line-height: 1.35;
    }

    .latest-desc {
      color: var(--muted);
      line-height: 1.8;
      margin-top: 8px;
    }

    .latest-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 12px;
    }

    .latest-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 11px 14px;
      border-radius: 999px;
      background: var(--grad);
      color: #fff;
      font-weight: 700;
      box-shadow: 0 14px 28px rgba(122, 99, 255, 0.24);
      white-space: nowrap;
    }

    .latest-link:hover {
      transform: translateY(-1px);
      color: #fff;
    }

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

    .faq-item {
      border-radius: 24px;
      overflow: hidden;
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .faq-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: var(--line-strong);
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      font-weight: 800;
      outline: none;
    }

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

    .faq-item summary::after {
      content: "+";
      width: 32px;
      height: 32px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: #fff;
      transition: transform 0.2s ease, background 0.2s ease;
    }

    .faq-item[open] summary::after {
      content: "−";
      background: rgba(122, 99, 255, 0.18);
    }

    .faq-item summary:focus-visible {
      box-shadow: var(--focus);
    }

    .faq-body {
      padding: 0 20px 18px;
      color: var(--muted);
      line-height: 1.85;
    }

    .cta-card {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-xl);
      padding: clamp(24px, 3vw, 38px);
      background:
        linear-gradient(135deg, rgba(122, 99, 255, 0.34), rgba(255, 79, 178, 0.24) 50%, rgba(255, 143, 98, 0.20)),
        linear-gradient(180deg, rgba(16, 21, 32, 0.95), rgba(16, 21, 32, 0.84));
    }

    .cta-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 15% 18%, rgba(45, 216, 230, 0.14), transparent 20%),
        radial-gradient(circle at 82% 12%, rgba(255, 255, 255, 0.10), transparent 18%);
      pointer-events: none;
    }

    .cta-card h2 {
      position: relative;
      z-index: 1;
      font-size: clamp(1.48rem, 2.6vw, 2.25rem);
      line-height: 1.18;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .cta-card p {
      position: relative;
      z-index: 1;
      color: rgba(238, 242, 248, 0.88);
      line-height: 1.9;
      max-width: 70ch;
    }

    .cta-actions {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 22px;
    }

    .empty-state {
      max-width: 720px;
      margin: 0 auto;
      border-radius: var(--radius-xl);
      padding: clamp(28px, 4vw, 48px);
      text-align: center;
    }

    .empty-state h1 {
      font-size: clamp(1.6rem, 3vw, 2.4rem);
      line-height: 1.15;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .empty-state p {
      color: var(--muted);
      line-height: 1.9;
      margin-bottom: 22px;
      max-width: 58ch;
      margin-left: auto;
      margin-right: auto;
    }

    .site-footer {
      padding: 42px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      background:
        linear-gradient(180deg, rgba(11, 13, 18, 0.86), rgba(11, 13, 18, 0.98)),
        radial-gradient(circle at 25% 0%, rgba(122, 99, 255, 0.09), transparent 28%);
      position: relative;
      z-index: 1;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.25fr) minmax(180px, 0.72fr) minmax(240px, 0.9fr);
      gap: 24px;
      align-items: start;
    }

    .footer-title {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .footer-brand p {
      color: var(--muted);
      line-height: 1.8;
      margin-top: 14px;
    }

    .footer-legal {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      color: var(--muted-2);
      font-size: 0.9rem;
      line-height: 1.7;
      margin-top: 18px;
    }

    .footer-column h4 {
      font-size: 1.02rem;
      margin-bottom: 12px;
    }

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

    .footer-links a {
      color: var(--muted);
      width: fit-content;
    }

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

    .footer-meta {
      display: grid;
      gap: 12px;
      color: var(--muted);
      line-height: 1.65;
    }

    .domain {
      color: #cbd4e4;
    }

    .article-shell {
      display: grid;
      gap: 24px;
    }

    .article-shell .section-head {
      margin-bottom: 24px;
    }

    .section-tight {
      padding-top: clamp(42px, 4.8vw, 70px);
    }

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

    @media (max-width: 1280px) {
      .article-hero {
        grid-template-columns: minmax(0, 1fr) minmax(320px, 0.88fr);
      }

      .info-card {
        grid-column: span 4;
      }

      .info-card.span-6 {
        grid-column: span 6;
      }
    }

    @media (max-width: 1024px) {
      .article-hero {
        grid-template-columns: 1fr;
      }

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

      .sidebar {
        position: static;
      }

      .stats-grid,
      .quote-grid {
        grid-template-columns: 1fr;
      }

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

      .info-card {
        grid-column: span 6;
      }

      .info-card.span-4,
      .info-card.span-6 {
        grid-column: span 6;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        flex-wrap: wrap;
        padding-top: 14px;
      }

      .header-badge {
        display: none;
      }

      .chip-nav {
        width: 100%;
        padding-bottom: 12px;
      }

      .section {
        padding: 56px 0;
      }

      .hero-copy,
      .hero-panel,
      .content-card,
      .aside-card,
      .metric-card,
      .quote-card,
      .latest-card,
      .cta-card,
      .empty-state,
      .info-card {
        border-radius: 22px;
      }

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

      .panel-feature .big-mark {
        width: 88px;
        height: 88px;
        border-radius: 24px;
      }

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

      .info-card,
      .info-card.span-4,
      .info-card.span-6 {
        grid-column: span 12;
      }

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

      .latest-link {
        width: 100%;
      }

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

      .btn {
        width: auto;
      }
    }

    @media (max-width: 520px) {
      .container {
        width: min(var(--container), calc(100% - 20px));
      }

      .brand-text {
        font-size: 0.98rem;
      }

      .article-title {
        font-size: clamp(1.7rem, 8vw, 2.6rem);
      }

      .hero-summary {
        font-size: 0.98rem;
      }

      .meta-pill,
      .tag-pill,
      .chip {
        font-size: 0.88rem;
      }

      .btn {
        width: 100%;
      }

      .cta-actions,
      .hero-actions {
        gap: 10px;
      }

      .article-content {
        font-size: 1rem;
      }

      .faq-item summary {
        padding: 16px 18px;
      }

      .faq-body {
        padding: 0 18px 16px;
      }
    }