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

    :root {
      --bg: #FFFFFF;
      --surface: #F5F7FA;
      --surface-2: #EEF1F5;
      --ink: #0F1620;
      --ink-dim: #5B6672;
      --line: #E3E7EC;
      --blue: #0B5FFF;
      --blue-dim: #EAF1FF;
      --amber: #FF8A1E;
    }

    body {
      font-family: -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;
      background: var(--bg);
      color: var(--ink);
      line-height: 1.65;
    }

    a {
      color: var(--blue);
      text-decoration: none;
      border-bottom: 1px solid var(--blue-dim);
    }

    .wrap {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* LAYOUT: main + sidebar */
    .blog-layout {
      display: flex;
      gap: 40px;
      align-items: flex-start;
      padding: 24px 0 48px;
    }

    .main-content {
      flex: 1;
      min-width: 0;
    }

    /* SIDEBAR (right) */
    .sidebar-right {
      width: 260px;
      flex-shrink: 0;
      position: sticky;
      top: 24px;
      align-self: flex-start;
    }

    /* LEFT TOPICS */
    .topics-left {
      width: 220px;
      flex-shrink: 0;
      align-self: flex-start;
      position: sticky;
      top: 24px;
    }

    .topics-box {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 20px 16px;
    }

    .topics-box h4 {
      font-size: 14px;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--ink-dim);
      border-bottom: 1px solid var(--line);
      padding-bottom: 12px;
      margin-bottom: 16px;
      font-weight: 800;
    }

    .topic-list {
      padding: 0;
      margin: 0;
    }

    .topic-list li {
      padding: 10px 0 10px 0;
      border-bottom: 1px solid var(--line);
      font-size: 14px;
      line-height: 1.4;
    }

    .topic-list li:last-child {
      border-bottom: none;
    }

    .topic-list a {
      border-bottom: none;
      font-weight: 600;
      display: inline;
      color: var(--ink);
      transition: color 0.1s;
    }

    .topic-list a:hover {
      color: var(--blue);
    }

    .topic-list .tag {
      display: inline-block;
      font-size: 10px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.04em;
      background: var(--blue-dim);
      color: var(--blue);
      padding: 2px 8px;
      border-radius: 12px;
      margin-top: 4px;
    }

    .topic-list li::before {
        display: none;
        content: none;
    }

    /* TOP BAR */
    .topbar {
      border-bottom: 1px solid var(--line);
      padding: 16px 0;
    }
    .topbar .row {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand {
      font-weight: 900;
      letter-spacing: .02em;
      font-size: 18px;
      color: var(--ink);
    }
    .brand span {
      color: var(--blue);
    }
    .nav {
      display: flex;
      gap: 22px;
      font-size: 13.5px;
      color: var(--ink-dim);
      font-weight: 600;
    }
    .nav a {
      border-bottom: none;
      color: var(--ink-dim);
    }
    .quote-btn {
      background: var(--ink);
      color: #fff;
      font-size: 13px;
      font-weight: 700;
      padding: 9px 16px;
      border-radius: 6px;
      border-bottom: none;
    }

    /* HERO */
    .hero {
      padding: 40px 0 32px;
      border-bottom: 1px solid var(--line);
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--blue);
      font-weight: 800;
      padding: 6px 12px;
      border: 1px solid var(--blue-dim);
      border-radius: 20px;
      background: var(--blue-dim);
    }
    h1 {
      font-size: 38px;
      line-height: 1.1;
      letter-spacing: -.01em;
      margin: 20px 0 16px;
      font-weight: 900;
      color: var(--ink);
    }
    h1 em {
      font-style: normal;
      color: var(--blue);
    }
    .dek {
      font-size: 18px;
      color: var(--ink-dim);
      max-width: 620px;
      margin: 0 0 26px;
    }
    .stat-row {
      display: flex;
      gap: 0;
      border: 1px solid var(--line);
      border-radius: 10px;
      overflow: hidden;
    }
    .stat {
      flex: 1;
      padding: 16px 18px;
      border-right: 1px solid var(--line);
    }
    .stat:last-child {
      border-right: none;
    }
    .stat b {
      display: block;
      font-size: 22px;
      font-weight: 900;
      color: var(--ink);
    }
    .stat span {
      font-size: 12px;
      color: var(--ink-dim);
      text-transform: uppercase;
      letter-spacing: .05em;
    }

    /* ARTICLE */
    article {
      padding: 12px 0 24px;
    }
    h2 {
      font-size: 25px;
      font-weight: 900;
      letter-spacing: -.01em;
      margin: 50px 0 16px;
      color: var(--ink);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    h2::before {
      content: "";
      width: 20px;
      height: 20px;
      border-radius: 5px;
      flex: none;
      background: var(--blue);
    }
    h3 {
      font-size: 18px;
      font-weight: 800;
      margin: 26px 0 10px;
      color: var(--ink);
    }
    p {
      font-size: 16.5px;
      color: #333B45;
      margin: 0 0 16px;
    }
    ul {
      margin: 0 0 18px;
      padding-left: 0;
      list-style: none;
    }
    li {
      font-size: 16px;
      color: #333B45;
      padding: 11px 0 11px 26px;
      border-bottom: 1px solid var(--line);
      position: relative;
    }
    li:last-child {
      border-bottom: none;
    }
    li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 19px;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--blue);
    }
    .spec-table {
      width: 100%;
      border-collapse: collapse;
      margin: 20px 0 28px;
      font-size: 14.5px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 8px;
      overflow: hidden;
    }
    .spec-table th {
      text-align: left;
      padding: 12px 14px;
      background: var(--surface);
      color: var(--ink);
      font-size: 12px;
      letter-spacing: .06em;
      text-transform: uppercase;
      border-bottom: 1px solid var(--line);
      font-weight: 800;
    }
    .spec-table td {
      padding: 12px 14px;
      border-bottom: 1px solid var(--line);
      color: #333B45;
    }
    .spec-table tr:last-child td {
      border-bottom: none;
    }
    .screen-frame {
      margin: 32px 0;
      border-radius: 12px;
      background: var(--surface);
      border: 1px solid var(--line);
      padding: 14px;
    }
    .screen-inner {
      position: relative;
      aspect-ratio: 16/8;
      border-radius: 6px;
      background: linear-gradient(135deg, #F0F3F7, #E6EBF1 50%, #F0F3F7);
      border: 1px dashed #C9D1DB;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }
    .screen-inner .ph-icon {
      text-align: center;
      color: #9AA5B1;
    }
    .screen-inner .ph-icon svg {
      width: 42px;
      height: 42px;
      opacity: .6;
      margin-bottom: 8px;
    }
    .screen-inner .ph-icon span {
      display: block;
      font-size: 11px;
      letter-spacing: .08em;
      text-transform: uppercase;
    }
    .screen-frame .cap {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 10px 4px 2px;
      font-size: 12px;
      color: var(--ink-dim);
    }
    .pitch-box {
      margin: 34px 0;
      padding: 0;
      border-radius: 10px;
      border: 1px solid var(--line);
      overflow: hidden;
    }
    .pitch-box .head {
      background: var(--ink);
      color: #fff;
      padding: 14px 18px;
      font-size: 13px;
      letter-spacing: .08em;
      text-transform: uppercase;
      font-weight: 800;
    }
    .pitch-box table {
      width: 100%;
      border-collapse: collapse;
      font-size: 14.5px;
    }
    .pitch-box th {
      text-align: left;
      padding: 12px 18px;
      background: var(--surface);
      font-size: 12px;
      color: var(--ink-dim);
      text-transform: uppercase;
      letter-spacing: .05em;
      border-bottom: 1px solid var(--line);
    }
    .pitch-box td {
      padding: 12px 18px;
      border-bottom: 1px solid var(--line);
      color: #333B45;
    }
    .pitch-box tr:last-child td {
      border-bottom: none;
    }
    .pitch-box td b {
      color: var(--ink);
    }
    .steps {
      margin: 24px 0;
      display: flex;
      flex-direction: column;
      gap: 0;
    }
    .step {
      display: flex;
      gap: 16px;
      padding: 16px 0;
      border-bottom: 1px solid var(--line);
    }
    .step:last-child {
      border-bottom: none;
    }
    .step .num {
      flex: none;
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background: var(--blue-dim);
      color: var(--blue);
      font-weight: 900;
      font-size: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .step .body b {
      display: block;
      font-size: 15.5px;
      color: var(--ink);
      margin-bottom: 2px;
    }
    .step .body span {
      font-size: 14.5px;
      color: var(--ink-dim);
    }
    .cta {
      margin: 56px 0 20px;
      padding: 34px;
      border-radius: 12px;
      text-align: center;
      background: var(--surface);
      border: 1px solid var(--line);
    }
    .cta h3 {
      margin: 0 0 8px;
      font-size: 22px;
    }
    .cta p {
      max-width: 520px;
      margin: 0 auto 20px;
      color: var(--ink-dim);
    }
    .cta-btn {
      display: inline-block;
      padding: 13px 26px;
      border-radius: 6px;
      background: var(--blue);
      color: #fff;
      font-weight: 800;
      font-size: 14px;
      border-bottom: none;
    }
    footer {
      border-top: 1px solid var(--line);
      padding: 28px 0 60px;
      font-size: 13px;
      color: var(--ink-dim);
    }

    @media(max-width: 900px) {
      .blog-layout {
        flex-direction: column;
      }
      .topics-left,
      .sidebar-right {
        width: 100%;
        position: static;
      }
      .topics-box {
        width: 100%;
      }
    }

    @media(max-width: 560px) {
      h1 {
        font-size: 31px;
      }
      .hero {
        padding: 32px 0 24px;
      }
      .nav {
        display: none;
      }
      .stat-row {
        flex-wrap: wrap;
      }
      .stat {
        flex: 1 1 50%;
        border-right: none;
        border-bottom: 1px solid var(--line);
      }
    }

/* ── Accessibility: Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.01ms !important; }
}

/* ── Accessibility: Focus Visible ── */
:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
.quote-btn:focus-visible,
.cta-btn:focus-visible,
.topic-list a:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* ── Breadcrumb Navigation ── */
.breadcrumb {
  padding: 10px 0 0;
  font-size: 13px;
  color: var(--ink-dim);
}
.breadcrumb ol {
  list-style: none;
  display: flex;
  gap: 0;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}
.breadcrumb li {
  display: flex;
  align-items: center;
}
.breadcrumb li + li::before {
  content: '›';
  margin: 0 8px;
  color: var(--ink-dim);
}
.breadcrumb a {
  color: var(--blue);
  text-decoration: none;
}
.breadcrumb a:hover {
  text-decoration: underline;
}

/* ── FAQ Accordion (details/summary) ── */
.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 0;
}
.faq-q {
  padding: 16px 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::after {
  content: '+';
  font-size: 20px;
  font-weight: 300;
  color: var(--blue);
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform 0.2s;
}
details[open] .faq-q::after {
  content: '−';
}
.faq-a {
  padding: 0 0 16px;
  color: var(--ink-dim);
  line-height: 1.7;
}
.faq-a p {
  margin: 0;
}