:root {
      --blue:       #00579c;
      --blue-dim:   #004a85;
      --blue-deep:  #003a6e;
      --blue-glow:  rgba(0,87,156,0.22);
      --blue-faint: rgba(0,87,156,0.07);
      --blue-mid:   rgba(0,87,156,0.14);
      --orange:     #e65100;
      --orange-dim: rgba(230,81,0,0.10);
      --teal:       #00897b;
      --teal-dim:   rgba(0,137,123,0.10);
      --bg:         #ffffff;
      --bg-alt:     #f8fafc;
      --bg-card:    #ffffff;
      --border:     rgba(148,163,184,0.28);
      --border-hi:  rgba(0,87,156,0.20);
      --t1: #0f172a;
      --t2: #475569;
      --t3: #94a3b8;
      --font: 'Inter', system-ui, sans-serif;
      --mono: 'JetBrains Mono', monospace;
      --radius: 14px;
    }
    html { scroll-behavior: smooth; }
    body { font-family: var(--font); background: var(--bg); color: var(--t1); line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
    a { color: inherit; text-decoration: none; }
    .lbl--orange { color: var(--orange); background: var(--orange-dim); border-color: rgba(230,81,0,0.25); }
    .lbl--teal   { color: var(--teal);   background: var(--teal-dim);   border-color: rgba(0,137,123,0.25); }
    .h2 { font-size: 52px; font-weight: 500; letter-spacing: -0.03em; line-height: 1.12; }
    .h2 em { font-style: normal; color: var(--blue); }
    .sec-sub { font-size: 18px; color: var(--t2); line-height: 1.7; margin-top: 16px; }
    .sec-header { margin-bottom: 56px; }
    .sec-header.center { text-align: center; }
    .sec-header.center .sec-sub { max-width: 580px; margin-left: auto; margin-right: auto; }
    .btn {
      display: inline-flex; align-items: center; gap: 8px;
      font-family: var(--font); font-weight: 700; border-radius: 10px;
      border: none; cursor: pointer; transition: all .2s; text-decoration: none;
    }
    .btn--lg { padding: 15px 30px; font-size: 18px; }
    .btn--md { padding: 11px 22px; font-size: 14px; }
    .btn--sm { padding: 8px 18px;  font-size: 13px; }
    .btn--primary { background: var(--blue); color: #fff; }
    .btn--primary:hover { background: var(--blue-dim); transform: translateY(-1px); box-shadow: 0 8px 24px var(--blue-glow); }
    .btn--ghost { background: transparent; color: var(--t1); border: 1.5px solid var(--border); }
    .btn--ghost:hover { border-color: var(--blue); color: var(--blue); }
    .btn--outline-white { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.35); }
    .btn--outline-white:hover { background: rgba(255,255,255,0.10); border-color: rgba(255,255,255,0.70); }
    .section { padding: 100px 0; }
    .section--alt { background: var(--bg-alt); }
    .fade { opacity: 0; transform: translateY(22px); transition: opacity .55s ease, transform .55s ease; }
    .fade.in { opacity: 1; transform: none; }

    /* ?T?T TRUST BAR ?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T */
    .trust-bar { background: var(--bg-alt); padding: 56px 0; }
    .trust-bar-inner { display: flex; align-items: center; justify-content: center; gap: 28px; flex-wrap: wrap; }
    .trust-card {
      display: flex; align-items: center; gap: 20px;
      background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
      padding: 20px 28px; flex: 1; min-width: 280px; max-width: 420px;
      transition: border-color .2s;
    }
    .trust-card:hover { border-color: var(--border-hi); }
    .trust-org { font-size: 18px; font-weight: 900; letter-spacing: -0.02em; color: var(--blue); flex-shrink: 0; font-family: var(--font); min-width: 56px; text-align: center; }
    .trust-logo { height: 26px; width: auto; display: block; }
    .trust-divider { width: 1px; height: 40px; background: var(--border); flex-shrink: 0; }
    .trust-report { font-size: 18px; font-weight: 600; color: var(--t1); line-height: 1.4; margin-bottom: 4px; }
    .trust-meta { font-size: 11.5px; color: var(--t3); font-family: var(--font); }

    /* ?T?T ENGINEERED CARD BASE — blueprint texture, no corner brackets ?T?T */
    .why-card,.uc-card {
      --accent:#00579c;
      background-color: var(--bg-card);
      background-image:
        linear-gradient(180deg, color-mix(in srgb, var(--accent) 5.5%, transparent) 0%, transparent 40%),
        radial-gradient(circle, rgba(0,87,156,0.055) 1px, transparent 1.3px);
      background-size: auto, 22px 22px;
      border: 1px solid var(--border);
      position: relative; overflow: hidden;
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease;
    }
    .why-card:hover,.uc-card:hover {
      border-color: rgba(0,87,156,0.32); transform: translateY(-5px);
      box-shadow: 0 22px 40px -18px rgba(0,87,156,0.22), inset 0 1px 0 rgba(255,255,255,0.7);
    }

    /* ?T?T INFRASTRUCTURE CHALLENGES (2??2 — clean editorial w/ watermark) ?T?T */
    .why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 56px; }
    .why-card { border-radius: var(--radius); padding: 30px 32px 28px; display: flex; flex-direction: column; min-height: 196px; }
    .why-card:nth-child(1) { --accent:#0277bd; }
    .why-card:nth-child(2) { --accent:#00579c; }
    .why-card:nth-child(3) { --accent:#0288d1; }
    .why-card:nth-child(4) { --accent:#004a85; }
    .why-title { font-size: 18.5px; font-weight: 500; letter-spacing: -0.02em; color: var(--t1); line-height: 1.25; margin-bottom: 11px; position: relative; z-index: 1; }
    .why-txt { font-size: 18px; color: var(--t2); line-height: 1.65; position: relative; z-index: 1; }
    .why-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 20px; position: relative; z-index: 1; }
    .why-tag { font-size: 11.5px; color: var(--t2); background: color-mix(in srgb, var(--accent) 7%, transparent);
      border: 1px solid color-mix(in srgb, var(--accent) 18%, transparent); border-radius: 100px; padding: 4px 12px; }
    .why-tag b { color: var(--accent); font-weight: 700; }
    .why-mark { position: absolute; right: -16px; bottom: -16px; width: 124px; height: 124px; color: var(--accent);
      opacity: .07; pointer-events: none; transition: opacity .4s ease, transform .5s cubic-bezier(.2,.7,.2,1); }
    .why-mark svg { width: 100%; height: 100%; }
    .why-card:hover .why-mark { opacity: .16; transform: translate(-6px,-6px); }

    /* ?T?T PLATFORM ARCHITECTURE — spacious layered cards ?T?T */
    .arch-banner {
      background: var(--blue-faint); border: 1px solid var(--border-hi); border-radius: 12px;
      padding: 13px 24px; margin-bottom: 22px;
      display: flex; align-items: center; justify-content: center; gap: 12px;
      font-size: 12.5px; font-weight: 600; color: var(--blue); font-family: var(--font); letter-spacing: .02em;
    }
    .arch-banner-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); animation: pulse 2.4s ease-in-out infinite; }
    .arch-layers { display: flex; flex-direction: column; gap: 18px; }
    .alayer {
      --accent:#0277bd; border-radius: 16px; position: relative; overflow: hidden;
      background-color: var(--bg-card);
      background-image:
        linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, transparent) 0%, transparent 26%),
        radial-gradient(circle, rgba(0,87,156,0.05) 1px, transparent 1.3px);
      background-size: auto, 22px 22px;
      border: 1px solid var(--border);
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease;
    }
    .alayer::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent); }
    .alayer:hover { border-color: rgba(0,87,156,0.30); transform: translateY(-3px);
      box-shadow: 0 18px 40px -22px rgba(0,87,156,0.22), inset 0 1px 0 rgba(255,255,255,0.7); }
    .alayer--top  { --accent:#0277bd; }
    .alayer--mid  { --accent:#00579c; }
    .alayer--base { --accent:#003c6e; }
    .alayer-in { padding: 30px 34px; }
    .alayer-head { display: flex; align-items: center; gap: 18px; }
    .alayer-ic { width: 54px; height: 54px; border-radius: 14px; flex-shrink: 0; display: grid; place-items: center;
      color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent);
      box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent);
      transition: background .35s ease, box-shadow .35s ease; }
    .alayer-ic svg { width: 27px; height: 27px; }
    .alayer:hover .alayer-ic { background: color-mix(in srgb, var(--accent) 13%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 38%, transparent); }
    .alayer-eyebrow { font-family: var(--font); font-size: 10.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin-bottom: 5px; }
    .alayer-name { font-size: 21px; font-weight: 500; letter-spacing: -.025em; color: var(--t1); line-height: 1.15; }
    .alayer-tags { margin-left: auto; display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; max-width: 330px; }
    .alayer-tag { font-size: 10.5px; font-weight: 600; font-family: var(--font); border-radius: 5px; padding: 3px 9px;
      color: var(--accent); background: color-mix(in srgb, var(--accent) 9%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent); }
    .alayer-lead { font-size: 18px; color: var(--t1); font-weight: 500; line-height: 1.6; margin: 18px 0 0; max-width: 780px; }
    .alayer-detail { margin-top: 20px; padding-top: 20px; border-top: 1px dashed var(--border); }
    .alayer-detail-k { font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; font-family: var(--font); color: var(--t3); margin-bottom: 14px; }
    .alayer-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 40px; align-items: start; }
    .alayer-feat { position: relative; padding-left: 17px; font-size: 13px; color: var(--t2); line-height: 1.6; }
    .alayer-feat::before { content: ''; position: absolute; left: 0; top: 8px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
    .alayer-feat strong { color: var(--t1); font-weight: 800; letter-spacing: -.01em; }
    @media (max-width: 760px) {
      .alayer-head { flex-wrap: wrap; }
      .alayer-tags { margin-left: 0; justify-content: flex-start; max-width: none; width: 100%; }
      .alayer-feats { grid-template-columns: 1fr; }
    }

    /* ?T?T PRODUCT ADVANTAGES — auto carousel ?T?T */
    .adv-carousel { --accent:#0277bd; max-width: 1000px; margin: 56px auto 0; }
    .adv-tabs { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-bottom: 30px; }
    .adv-tab { font-size: 17px; font-weight: 700; letter-spacing: -.015em; color: var(--t2); background: var(--bg-card); border: 1px solid var(--border);
      border-radius: 100px; padding: 13px 30px; cursor: pointer; transition: color .3s ease, border-color .3s ease, background .3s ease, box-shadow .3s ease; }
    .adv-tab:hover { color: var(--t1); border-color: var(--border-hi); }
    .adv-tab.active { color: #fff; border-color: transparent;
      background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 60%, #4fc3f7));
      box-shadow: 0 6px 16px -6px color-mix(in srgb, var(--accent) 60%, transparent); }
    .adv-stage { position: relative; border: 1px solid var(--border); border-radius: 18px; overflow: hidden; min-height: 232px;
      background-color: var(--bg-card);
      background-image:
        linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, transparent) 0%, transparent 30%),
        radial-gradient(circle, rgba(0,87,156,0.05) 1px, transparent 1.3px);
      background-size: auto, 22px 22px;
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.7), 0 24px 60px -40px rgba(0,87,156,0.28);
      transition: border-color .4s ease; }
    .adv-rail { position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent); transition: background .5s ease; z-index: 2; }
    .adv-prog { position: absolute; left: 0; top: 0; height: 3px; width: 100%; background: var(--accent); transform: scaleX(0); transform-origin: left; z-index: 3; }
    .adv-slide { position: absolute; inset: 0; display: flex; align-items: center; gap: 36px; padding: 44px 50px;
      opacity: 0; visibility: hidden; transform: translateY(10px);
      transition: opacity .5s ease, transform .5s ease, visibility .5s ease; }
    .adv-slide.active { opacity: 1; visibility: visible; transform: none; position: relative; }
    .adv-slide-ic { flex-shrink: 0; color: var(--accent); display: grid; place-items: center; }
    .adv-slide-ic svg { width: 78px; height: 78px; }
    .adv-slide-body { flex: 1; }
    .adv-slide-k { font-family: var(--font); font-size: 10.5px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
    .adv-slide-title { font-size: 24px; font-weight: 500; letter-spacing: -.025em; color: var(--t1); margin-bottom: 12px; line-height: 1.15; }
    .adv-slide-txt { font-size: 14.5px; color: var(--t2); line-height: 1.7; max-width: 560px; }
    @media (max-width: 640px) {
      .adv-slide { flex-direction: column; align-items: flex-start; gap: 18px; padding: 30px 26px; }
      .adv-slide-ic svg { width: 54px; height: 54px; }
      .adv-slide-title { font-size: 20px; }
    }

    /* ?T?T USE CASES ?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T */
    .uc-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 0 20px; margin-top: 56px; grid-template-rows: auto auto auto 1fr auto; }
    .uc-card { border-radius: var(--radius); padding: 32px 28px; display: grid; grid-template-rows: subgrid; grid-row: span 5; }
    .uc-card:nth-child(1) { --accent:#00579c; }
    .uc-card:nth-child(2) { --accent:#0277bd; }
    .uc-card:nth-child(3) { --accent:#003c6e; }
    .uc-eyebrow { font-family: var(--font); font-size: 10px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; position: relative; z-index: 1; }
    .uc-title { font-size: 21px; font-weight: 500; letter-spacing: -0.02em; color: var(--t1); margin-bottom: 6px; position: relative; z-index: 1; }
    .uc-for { font-size: 18px; font-weight: 600; font-style: italic; line-height: 1.4; color: var(--accent); margin-bottom: 16px; min-height: 40px; position: relative; z-index: 1; }
    .uc-txt { font-size: 18px; color: var(--t2); line-height: 1.68; position: relative; z-index: 1; }
    .uc-tags { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding-top: 16px; border-top: 1px dashed var(--border); position: relative; z-index: 1; }
    .uc-tag { font-size: 11px; font-weight: 600; color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent); border-radius: 6px; padding: 5px 10px; text-align: center; font-family: var(--font); white-space: nowrap; }
    .uc-mark { position: absolute; right: -14px; bottom: -16px; width: 142px; height: 142px; color: var(--accent); opacity: .09; pointer-events: none; animation: uc-drift 14s ease-in-out infinite; }
    .uc-mark svg { width: 100%; height: 100%; }
    .uc-card:hover .uc-mark { opacity: .24; animation: uc-spin 18s linear infinite; }
    @keyframes uc-drift { 0%,100%{transform:rotate(-4deg) translate(0,0)} 50%{transform:rotate(4deg) translate(-4px,-4px)} }
    @keyframes uc-spin { from{transform:rotate(0) scale(1.08)} to{transform:rotate(360deg) scale(1.08)} }
    @media (max-width: 760px) {
      .uc-grid { grid-template-rows: none; gap: 20px; }
      .uc-card { display: flex; flex-direction: column; grid-row: auto; }
    }

    /* ?T?T COMPATIBILITY ?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T */
    .compat-panel { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 32px; margin-bottom: 20px; }
    .compat-panel-title { font-size: 13px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--t3); font-family: var(--font); margin-bottom: 24px; display: flex; align-items: center; gap: 10px; }
    .compat-panel-title::after { content: ''; flex: 1; height: 1px; background: var(--border); }
    .compat-grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
    .compat-grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
    .compat-card { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 20px; transition: border-color .2s, transform .2s; }
    .compat-card:hover { border-color: var(--border-hi); transform: translateY(-2px); }
    .compat-head { display: flex; align-items: center; gap: 13px; margin-bottom: 14px; }
    .compat-icon { flex-shrink: 0; color: var(--blue); display: grid; place-items: center; transition: color .3s ease, transform .3s ease; }
    .compat-icon svg { width: 30px; height: 30px; }
    .compat-card:hover .compat-icon { color: var(--blue-dim); transform: translateY(-1px); }
    .compat-name { font-size: 18px; font-weight: 700; color: var(--t1); line-height: 1.25; }
    .compat-models { font-size: 12px; color: var(--t3); line-height: 1.55; margin-bottom: 12px; }
    .compat-status { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; font-weight: 600; font-family: var(--font); }
    .compat-status-dot { width: 6px; height: 6px; border-radius: 50%; }
    .compat-status--ok  { color: var(--blue); }
    .compat-status--ok  .compat-status-dot { background: var(--blue); }
    .compat-status--beta { color: #b45309; }
    .compat-status--beta .compat-status-dot { background: #f59e0b; }
    /* Platform cards */
    .platform-card { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 20px; transition: border-color .2s, transform .2s; }
    .platform-card:hover { border-color: var(--border-hi); transform: translateY(-2px); }
    .platform-card--overlay { background: linear-gradient(135deg,var(--blue-faint),rgba(0,137,123,0.05)); border-color: var(--border-hi); box-shadow: 0 4px 16px rgba(0,87,156,0.08); }
    .platform-tag { font-size: 12px; font-weight: 800; letter-spacing: 0.06em; font-family: var(--font); border-radius: 6px; padding: 4px 10px; display: inline-block; margin-bottom: 10px; }
    .platform-tag--blue { background: var(--blue);  color: #fff; }
    .platform-tag--teal { background: var(--teal);  color: #fff; }
    .platform-tag--dark { background: #1a2744;      color: #fff; }
    .platform-name { font-size: 14px; font-weight: 700; color: var(--t1); margin-bottom: 4px; }
    .platform-desc { font-size: 12px; color: var(--t3); line-height: 1.55; }

    /* ?T?T CUSTOMER STORIES ?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T */
    .stories-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-top: 56px; }
    .story-card { border-radius: var(--radius); padding: 30px 28px; display: flex; flex-direction: column; gap: 16px; }
    .story-card:nth-child(1) { --accent:#00579c; }
    .story-card:nth-child(2) { --accent:#0277bd; }
    .story-card:nth-child(3) { --accent:#003c6e; }
    .story-industry { font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); font-family: var(--font); display: inline-flex; align-items: center; gap: 7px; position: relative; z-index: 1; }
    .story-industry::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
    .story-quote { font-size: 14.5px; color: var(--t2); line-height: 1.72; flex: 1; position: relative; z-index: 1; padding-top: 16px; }
    .story-quote::before { content: '\201C'; position: absolute; top: -8px; left: -3px; font-family: var(--font); font-size: 50px; line-height: 1; color: var(--accent); opacity: .16; }
    .story-divider { height: 1px; background: var(--border); position: relative; z-index: 1; }
    .story-org { display: flex; align-items: stretch; gap: 13px; position: relative; z-index: 1; }
    .story-spine { width: 3px; flex-shrink: 0; min-height: 36px; border-radius: 3px; background: linear-gradient(180deg, var(--accent), color-mix(in srgb, var(--accent) 55%, #0d83d4)); }
    .story-name { font-size: 14px; font-weight: 500; color: var(--t1); }
    .story-type { font-size: 11.5px; color: var(--t3); font-family: var(--font); margin-top: 3px; }
    .story-link { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; font-weight: 700; color: var(--accent); transition: gap .25s; position: relative; z-index: 1; }
    .story-card:hover .story-link { gap: 9px; }
    .story-mark { position: absolute; right: -8px; top: -4px; width: 90px; height: 90px; color: var(--accent); opacity: .07; pointer-events: none; }
    .story-mark svg { width: 100%; height: 100%; }

    /* ?T?T RESPONSIVE ?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T?T */
    @media (max-width: 1024px) {
      .adv-grid { grid-template-columns: repeat(3,1fr); }
      .compat-grid-3, .compat-grid-4 { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 900px) {
      .why-grid, .uc-grid, .stories-grid { grid-template-columns: 1fr; }
      .layer-feat-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 640px) {
      .adv-grid { grid-template-columns: 1fr 1fr; }
      .compat-grid-3, .compat-grid-4 { grid-template-columns: 1fr; }
    }

    /* ?T?T ZVF — shared section header (centered) ?T?T */
    .zsec-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
    .zsec-head .lbl { margin-bottom: 16px; }
    .zsec-head .h2 { font-size: 46px; }
    .zsec-head .sec-sub { max-width: 600px; margin-left: auto; margin-right: auto; }

    /* ?T?T ZVF — PAIN POINTS (2??2 editorial + icon) ?T?T */
    .pain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .pain-card {
      --accent:#0277bd; border-radius: var(--radius); padding: 28px 30px; display: flex; gap: 18px;
      background-color: var(--bg-card);
      background-image:
        linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, transparent) 0%, transparent 38%),
        radial-gradient(circle, rgba(0,87,156,0.05) 1px, transparent 1.3px);
      background-size: auto, 22px 22px;
      border: 1px solid var(--border); box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease;
    }
    .pain-card:nth-child(1){--accent:#0277bd} .pain-card:nth-child(2){--accent:#00579c}
    .pain-card:nth-child(3){--accent:#0288d1} .pain-card:nth-child(4){--accent:#004a85}
    .pain-card:hover { border-color: rgba(0,87,156,0.30); transform: translateY(-4px); box-shadow: 0 20px 38px -20px rgba(0,87,156,0.20), inset 0 1px 0 rgba(255,255,255,0.7); }
    .pain-ic { width: 46px; height: 46px; flex-shrink: 0; border-radius: 12px; display: grid; place-items: center; color: var(--accent);
      background: color-mix(in srgb, var(--accent) 8%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 20%, transparent);
      transition: background .35s ease, color .35s ease, box-shadow .35s ease; }
    .pain-ic svg { width: 22px; height: 22px; }
    .pain-card:hover .pain-ic { background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 58%, #4fc3f7)); color: #fff; box-shadow: 0 6px 14px -5px color-mix(in srgb, var(--accent) 55%, transparent), inset 0 1px 0 rgba(255,255,255,0.25); }
    .pain-title { font-size: 21px; font-weight: 500; letter-spacing: -0.02em; color: var(--t1); margin-bottom: 8px; }
    .pain-txt { font-size: 14px; color: var(--t2); line-height: 1.66; }
    .pain-coda { position: relative; overflow: hidden; margin-top: 48px; border-radius: 18px; text-align: center;
      padding: 52px 32px; background: linear-gradient(150deg, #001d3d 0%, #003a6e 50%, #005b9f 100%);
      box-shadow: 0 24px 60px -34px rgba(0,58,110,0.65); }
    .pain-coda::before { content: ''; position: absolute; inset: 0; pointer-events: none;
      background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
      background-size: 46px 46px; mask-image: radial-gradient(ellipse 80% 90% at 50% 50%, #000 35%, transparent 78%); }
    .pain-coda::after { content: ''; position: absolute; inset: 0; pointer-events: none;
      background: radial-gradient(ellipse 55% 70% at 22% 50%, rgba(79,195,247,0.18) 0%, transparent 60%), radial-gradient(ellipse 50% 60% at 82% 50%, rgba(13,131,212,0.16) 0%, transparent 62%); }
    .pain-coda p { position: relative; z-index: 1; font-size: 34px; font-weight: 500; letter-spacing: -0.025em; color: #fff; line-height: 1.25; }
    .pain-coda span { background: linear-gradient(125deg, #60b8ff 0%, #a8d8ff 55%, #7fe0d4 100%); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 900; }
    @media (max-width:760px){ .pain-grid{ grid-template-columns: 1fr; } }

    /* ?T?T ZVF — CAPABILITIES TABLE ?T?T */
    .cap-tablewrap { border: 1px solid var(--border); border-radius: 16px; overflow: hidden; box-shadow: inset 0 1px 0 rgba(255,255,255,0.7); }
    .cap-table { width: 100%; border-collapse: collapse; font-size: 14px; }
    .cap-table th, .cap-table td { text-align: left; padding: 15px 22px; border-bottom: 1px solid var(--border); }
    .cap-table thead th { font-size: 18px; font-weight: 800; letter-spacing: -.01em; color: var(--t1); background: var(--bg-alt); text-transform: none; padding: 20px 22px; border-bottom: 2px solid var(--border-hi); vertical-align: bottom; }
    .cap-table thead th .cap-th-k { display: block; font-family: var(--font); font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--t3); margin-bottom: 7px; }
    .cap-table thead th.cap-zcol { color: var(--blue); background: var(--blue-faint); border-bottom: 2px solid var(--blue); box-shadow: inset 0 3px 0 var(--blue); }
    .cap-table thead th.cap-zcol .cap-th-k { color: var(--blue); }
    .cap-table tbody tr:last-child td { border-bottom: none; }
    .cap-table tbody tr:hover { background: color-mix(in srgb, var(--blue) 3%, transparent); }
    .cap-feat { font-weight: 600; color: var(--t1); }
    .cap-vmware { color: var(--t2); font-family: var(--font); font-size: 12.5px; }
    .cap-zcol { background: color-mix(in srgb, var(--blue) 4.5%, transparent); color: var(--t1); font-weight: 600; }
    .cap-chk { display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: var(--blue); color: #fff; font-size: 11px; font-weight: 800; margin-right: 4px; vertical-align: -2px; }
    .cap-dash { color: var(--t3); font-size: 18px; }
    .cap-bdg { display: inline-block; font-family: var(--font); font-size: 10.5px; font-weight: 600; color: var(--blue); background: var(--blue-faint); border: 1px solid var(--border-hi); border-radius: 5px; padding: 1px 7px; }
    .cap-bdg--m { color: var(--t3); background: var(--bg-alt); border-color: var(--border); }
    .cap-beyond-head { text-align: center; margin: 44px 0 22px; }
    .cap-beyond-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
    .cap-bi { display: flex; align-items: center; gap: 11px; padding: 16px 18px; border: 1px solid var(--border); border-radius: 12px; background: var(--bg-card);
      transition: border-color .3s ease, transform .3s cubic-bezier(.2,.7,.2,1), box-shadow .3s ease; }
    .cap-bi:hover { border-color: var(--border-hi); transform: translateY(-3px); box-shadow: 0 14px 30px -20px var(--blue-glow); }
    .cap-bi-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; background: linear-gradient(135deg, var(--blue), #4fc3f7); box-shadow: 0 0 0 4px var(--blue-faint); }
    .cap-bi-name { font-size: 21px; font-weight: 700; color: var(--t1); letter-spacing: -.01em; }
    @media (max-width:760px){ .cap-beyond-grid{ grid-template-columns: 1fr; } .cap-table th, .cap-table td{ padding: 12px 14px; } }

    /* ?T?T ZVF — SIX PILLARS ?T?T */
    .pil-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
    .pil {
      --accent:#0277bd; position: relative; overflow: hidden; border-radius: var(--radius); padding: 28px 26px;
      display: flex; flex-direction: column;
      background-color: var(--bg-card);
      background-image:
        linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, transparent) 0%, transparent 30%),
        radial-gradient(circle, rgba(0,87,156,0.05) 1px, transparent 1.3px);
      background-size: auto, 22px 22px;
      border: 1px solid var(--border); box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease;
    }
    .pil::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent); opacity: .55; transition: opacity .3s ease; }
    .pil:hover { border-color: rgba(0,87,156,0.30); transform: translateY(-4px); box-shadow: 0 20px 40px -22px rgba(0,87,156,0.20), inset 0 1px 0 rgba(255,255,255,0.7); }
    .pil:hover::before { opacity: 1; }
    .pil:nth-child(1){--accent:#0277bd} .pil:nth-child(2){--accent:#00579c} .pil:nth-child(3){--accent:#0288d1}
    .pil:nth-child(4){--accent:#004a85} .pil:nth-child(5){--accent:#0d83d4} .pil:nth-child(6){--accent:#003c6e}
    .pil-ghost { position: absolute; right: 6px; top: -14px; font-family: var(--font); font-size: 96px; font-weight: 700; line-height: 1; color: var(--accent); opacity: .07; pointer-events: none; letter-spacing: -.04em; transition: opacity .35s ease; }
    .pil:hover .pil-ghost { opacity: .13; }
    .pil-num { font-family: var(--font); font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin-bottom: 8px; position: relative; z-index: 1; }
    .pil-title { font-size: 21px; font-weight: 500; letter-spacing: -.025em; color: var(--t1); margin-bottom: 8px; position: relative; z-index: 1; }
    .pil-tl { font-size: 14px; color: var(--t2); line-height: 1.55; margin-bottom: 18px; position: relative; z-index: 1; min-height: 40px; }
    .pil-items { display: flex; flex-direction: column; gap: 10px; padding-top: 16px; border-top: 1px dashed var(--border); position: relative; z-index: 1; flex: 1; }
    .pil-item { display: flex; align-items: flex-start; gap: 10px; font-size: 12.5px; color: var(--t2); line-height: 1.5; }
    .pil-item-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); flex-shrink: 0; margin-top: 6px; }
    .pil-item strong { color: var(--t1); font-weight: 700; }
    .pil-stat { display: inline-block; align-self: flex-start; margin-top: 18px; font-family: var(--font); font-size: 10.5px; font-weight: 600; color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent); border-radius: 6px; padding: 4px 11px; position: relative; z-index: 1; }
    @media (max-width:900px){ .pil-grid{ grid-template-columns: 1fr 1fr; } }
    @media (max-width:600px){ .pil-grid{ grid-template-columns: 1fr; } }

    /* ?T?T ZVF — MIGRATION STEPS ?T?T */
    .mig-steps { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: stretch; gap: 0 14px; }
    .mig-step {
      --accent:#0277bd; border-radius: var(--radius); padding: 28px 26px 30px; text-align: left;
      display: flex; flex-direction: column; position: relative; overflow: hidden;
      background-color: var(--bg-card);
      background-image: radial-gradient(circle, rgba(0,87,156,0.05) 1px, transparent 1.3px); background-size: 22px 22px;
      border: 1px solid var(--border); box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease;
    }
    .mig-step--1{--accent:#0277bd} .mig-step--2{--accent:#00579c} .mig-step--3{--accent:#003c6e}
    /* animated blue top line, sweeping left??right across the three cards */
    .mig-step::before { content: ''; position: absolute; top: 0; left: 0; height: 3px; width: 0;
      background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 50%, #4fc3f7));
      animation: mig-line .7s cubic-bezier(.2,.7,.2,1) forwards; }
    .mig-step--1::before { animation-delay: .15s; }
    .mig-step--2::before { animation-delay: .85s; }
    .mig-step--3::before { animation-delay: 1.55s; }
    @keyframes mig-line { from { width: 0; } to { width: 100%; } }
    .mig-conn { align-self: center; display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%;
      color: var(--blue); background: var(--bg-card); border: 1px solid var(--border-hi); box-shadow: 0 4px 12px -6px var(--blue-glow); }
    .mig-conn svg { width: 17px; height: 17px; }
    .mig-step:hover { border-color: rgba(0,87,156,0.30); transform: translateY(-4px); box-shadow: 0 20px 38px -22px rgba(0,87,156,0.20), inset 0 1px 0 rgba(255,255,255,0.7); }
    .mig-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
    .mig-ic { width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0; display: grid; place-items: center; color: var(--accent);
      background: color-mix(in srgb, var(--accent) 8%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent);
      transition: background .35s ease, color .35s ease, box-shadow .35s ease; }
    .mig-ic svg { width: 23px; height: 23px; }
    .mig-step:hover .mig-ic { background: color-mix(in srgb, var(--accent) 14%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 40%, transparent); }
    .mig-num { font-family: var(--font); font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
    .mig-title { font-size: 21px; font-weight: 500; letter-spacing: -.02em; color: var(--t1); margin-bottom: 9px; min-height: 48px; }
    .mig-txt { font-size: 14px; color: var(--t2); line-height: 1.62; }
    .mig-footer { text-align: center; margin-top: 40px; font-size: 18px; color: var(--t2); font-weight: 600; }
    .mig-footer b { display: inline-grid; place-items: center; width: 17px; height: 17px; border-radius: 50%; background: var(--blue); color: #fff; font-size: 10px; vertical-align: -2px; margin-right: 4px; }
    @media (max-width:860px){ .mig-steps{ grid-template-columns: 1fr; gap: 12px 0; } .mig-title{ min-height: 0; } .mig-conn{ transform: rotate(90deg); } }

    /* ?T?T ZVF — USE CASES (4 scenarios, subgrid) ?T?T */
    .zuc-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 0 18px; grid-template-rows: auto auto 1fr auto; }
    .zuc {
      --accent:#0277bd; border-radius: var(--radius); padding: 28px 24px; display: grid; grid-template-rows: subgrid; grid-row: span 4; position: relative; overflow: hidden;
      background-color: var(--bg-card);
      background-image:
        linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, transparent) 0%, transparent 36%),
        radial-gradient(circle, rgba(0,87,156,0.05) 1px, transparent 1.3px);
      background-size: auto, 22px 22px;
      border: 1px solid var(--border); box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease;
    }
    .zuc:nth-child(1){--accent:#0277bd} .zuc:nth-child(2){--accent:#00579c} .zuc:nth-child(3){--accent:#0288d1} .zuc:nth-child(4){--accent:#003c6e}
    .zuc:hover { border-color: rgba(0,87,156,0.30); transform: translateY(-5px); box-shadow: 0 22px 40px -20px rgba(0,87,156,0.20), inset 0 1px 0 rgba(255,255,255,0.7); }
    .zuc-eyebrow { font-family: var(--font); font-size: 10px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
    .zuc-title { font-size: 21px; font-weight: 500; letter-spacing: -.02em; color: var(--t1); line-height: 1.25; margin-bottom: 16px; }
    .zuc-tags { display: flex; flex-direction: column; gap: 7px; align-items: flex-start; }
    .zuc-tag { font-size: 11px; font-weight: 600; font-family: var(--font); color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent); border-radius: 6px; padding: 4px 11px; }
    .zuc-metric { margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--border); font-size: 12px; font-weight: 600; color: var(--t1); line-height: 1.45; }
    @media (max-width:900px){ .zuc-grid{ grid-template-columns: 1fr 1fr; } }
    @media (max-width:560px){ .zuc-grid{ grid-template-columns: 1fr; grid-template-rows: none; gap: 18px; } .zuc{ display: flex; flex-direction: column; grid-row: auto; } }

    /* ?T?T ZVF — COMPATIBILITY (chips) ?T?T */
    .zcompat-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-bottom: 18px; }
    .zarch-chip { display: inline-flex; align-items: center; gap: 9px; font-size: 13px; font-weight: 700; color: var(--t1);
      background: var(--bg-card); border: 1px solid var(--border); border-radius: 100px; padding: 10px 20px;
      transition: border-color .3s ease, transform .3s cubic-bezier(.2,.7,.2,1), box-shadow .3s ease, color .3s ease; }
    .zarch-chip svg { width: 17px; height: 17px; color: var(--blue); }
    .zarch-chip:hover { border-color: var(--border-hi); transform: translateY(-2px); box-shadow: 0 10px 22px -14px var(--blue-glow); }
    .zvendor-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
    .zvendor-chip { font-size: 13px; font-weight: 700; font-family: var(--font); color: var(--t2); background: var(--bg-alt); border: 1px solid var(--border); border-radius: 8px; padding: 9px 18px; transition: color .3s ease, border-color .3s ease, background .3s ease; }
    .zvendor-chip:hover { color: var(--blue); border-color: var(--border-hi); background: var(--blue-faint); }
    .zcompat-link { text-align: center; margin-top: 32px; }
    .zcompat-link a { display: inline-flex; align-items: center; gap: 6px; font-size: 18px; font-weight: 700; color: var(--blue); transition: gap .25s; }
    .zcompat-link a:hover { gap: 9px; }

    /* ?T?T HCI — generic icon-card grids (Why / Capabilities / Deployment) ?T?T */
    .hci-cardbase {
      --accent:#0277bd; border-radius: var(--radius); position: relative; overflow: hidden;
      background-color: var(--bg-card);
      background-image:
        linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, transparent) 0%, transparent 38%),
        radial-gradient(circle, rgba(0,87,156,0.05) 1px, transparent 1.3px);
      background-size: auto, 22px 22px;
      border: 1px solid var(--border); box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease;
    }
    .hci-cardbase:hover { border-color: rgba(0,87,156,0.30); transform: translateY(-4px); box-shadow: 0 20px 38px -20px rgba(0,87,156,0.20), inset 0 1px 0 rgba(255,255,255,0.7); }
    .hci-ic { border-radius: 12px; display: grid; place-items: center; color: var(--accent);
      background: color-mix(in srgb, var(--accent) 8%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 20%, transparent);
      transition: background .35s ease, color .35s ease, box-shadow .35s ease; flex-shrink: 0; }
    .hci-cardbase:hover .hci-ic { background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 58%, #4fc3f7)); color: #fff; box-shadow: 0 6px 14px -5px color-mix(in srgb, var(--accent) 55%, transparent), inset 0 1px 0 rgba(255,255,255,0.25); }

    /* Why HCI — 2??2, icon left */
    .why-hci-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .why-hci-grid .hci-card { padding: 28px 30px; display: flex; gap: 18px; }
    .why-hci-grid .hci-card:nth-child(1){--accent:#0277bd} .why-hci-grid .hci-card:nth-child(2){--accent:#00579c}
    .why-hci-grid .hci-card:nth-child(3){--accent:#0288d1} .why-hci-grid .hci-card:nth-child(4){--accent:#004a85}
    .why-hci-grid .hci-ic { width: 40px; height: 40px; background: none; box-shadow: none; border-radius: 0; color: var(--accent); justify-content: flex-start; }
    .why-hci-grid .hci-ic svg { width: 30px; height: 30px; stroke-width: 1.4; }
    .why-hci-grid .hci-card:hover .hci-ic { background: none; box-shadow: none; color: color-mix(in srgb, var(--accent) 78%, #4fc3f7); transform: translateY(-1px); }
    .hci-card-title { font-size: 17px; font-weight: 500; letter-spacing: -0.02em; color: var(--t1); margin-bottom: 8px; }
    .hci-card-txt { font-size: 14px; color: var(--t2); line-height: 1.66; }

    /* Core Capabilities — 5 across, centered */
    .feat-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 16px; }
    .feat-grid .hci-card { padding: 28px 20px; text-align: center; display: flex; flex-direction: column; align-items: center; }
    .feat-grid .hci-card:nth-child(1){--accent:#0277bd} .feat-grid .hci-card:nth-child(2){--accent:#00579c} .feat-grid .hci-card:nth-child(3){--accent:#0288d1}
    .feat-grid .hci-card:nth-child(4){--accent:#004a85} .feat-grid .hci-card:nth-child(5){--accent:#0d83d4}
    .feat-grid .hci-ic { width: 44px; height: 44px; margin-bottom: 16px; } .feat-grid .hci-ic svg { width: 21px; height: 21px; }
    .feat-grid .hci-card-title { font-size: 18px; margin-bottom: 8px; }
    .feat-grid .hci-card-txt { font-size: 14px; }
    @media (max-width:1024px){ .feat-grid{ grid-template-columns: repeat(3,1fr); } }
    @media (max-width:640px){ .feat-grid{ grid-template-columns: 1fr 1fr; } }

    /* Deployment Options — 3 across */
    .dep-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
    .dep-grid .hci-card { padding: 34px 28px; }
    .dep-grid .hci-card:nth-child(1){--accent:#0277bd} .dep-grid .hci-card:nth-child(2){--accent:#00579c} .dep-grid .hci-card:nth-child(3){--accent:#003c6e}
    .dep-grid .hci-card { position: relative; }
    .dep-grid .hci-ic { width: 46px; height: 46px; margin-bottom: 20px; background: none; box-shadow: none; border-radius: 0; color: var(--accent); justify-content: flex-start; }
    .dep-grid .hci-ic svg { width: 32px; height: 32px; stroke-width: 1.4; }
    .dep-grid .hci-card:hover .hci-ic { background: none; box-shadow: none; color: color-mix(in srgb, var(--accent) 78%, #4fc3f7); }
    .dep-grid .hci-card::after { content: ''; position: absolute; right: 0; bottom: 0; width: 96px; height: 96px; pointer-events: none; opacity: .5;
      background-image:
        linear-gradient(to right, color-mix(in srgb, var(--accent) 22%, transparent) 1px, transparent 1px),
        linear-gradient(to bottom, color-mix(in srgb, var(--accent) 22%, transparent) 1px, transparent 1px);
      background-size: 18px 18px; background-position: right bottom;
      -webkit-mask-image: radial-gradient(circle at bottom right, #000 0%, transparent 72%);
      mask-image: radial-gradient(circle at bottom right, #000 0%, transparent 72%);
      transition: opacity .35s ease; }
    .dep-grid .hci-card:hover::after { opacity: .85; }
    .dep-grid .hci-card-title { font-size: 18px; margin-bottom: 10px; }
    .dep-grid .hci-card-txt { font-size: 14px; }
    @media (max-width:760px){ .why-hci-grid, .dep-grid{ grid-template-columns: 1fr; } }

    /* ?T?T HCI — TCO economics (ghost-number cards) ?T?T */
    .tco-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
    .tco-card { --accent:#0277bd; position: relative; overflow: hidden; border-radius: var(--radius); padding: 28px 24px;
      background-color: var(--bg-card);
      background-image: linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, transparent) 0%, transparent 30%), radial-gradient(circle, rgba(0,87,156,0.05) 1px, transparent 1.3px);
      background-size: auto, 22px 22px; border: 1px solid var(--border); box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease; }
    .tco-card::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent); opacity: .55; transition: opacity .3s ease; }
    .tco-card:hover { border-color: rgba(0,87,156,0.30); transform: translateY(-4px); box-shadow: 0 20px 40px -22px rgba(0,87,156,0.20), inset 0 1px 0 rgba(255,255,255,0.7); }
    .tco-card:hover::before { opacity: 1; }
    .tco-card:nth-child(1){--accent:#0277bd} .tco-card:nth-child(2){--accent:#00579c} .tco-card:nth-child(3){--accent:#0288d1} .tco-card:nth-child(4){--accent:#003c6e}
    .tco-ghost { position: absolute; right: 8px; top: -12px; font-family: var(--font); font-size: 76px; font-weight: 700; line-height: 1; color: var(--accent); opacity: .08; pointer-events: none; letter-spacing: -.04em; transition: opacity .35s ease; }
    .tco-card:hover .tco-ghost { opacity: .15; }
    .tco-title { font-size: 18px; font-weight: 500; letter-spacing: -.02em; color: var(--t1); margin-bottom: 8px; position: relative; z-index: 1; }
    .tco-txt { font-size: 13px; color: var(--t2); line-height: 1.6; position: relative; z-index: 1; }
    @media (max-width:900px){ .tco-grid{ grid-template-columns: 1fr 1fr; } }
    @media (max-width:520px){ .tco-grid{ grid-template-columns: 1fr; } }

    /* ?T?T HCI — Use Cases (rich scenario cards, subgrid aligned) ?T?T */
    .huc-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; grid-template-rows: auto auto auto 1fr auto; }
    .huc { --accent:#0277bd; border-radius: var(--radius); padding: 30px 28px; display: grid; grid-template-rows: subgrid; grid-row: span 5; position: relative; overflow: hidden;
      background-color: var(--bg-card);
      background-image: linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, transparent) 0%, transparent 34%), radial-gradient(circle, rgba(0,87,156,0.05) 1px, transparent 1.3px);
      background-size: auto, 22px 22px; border: 1px solid var(--border); box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease; }
    .huc:nth-child(1){--accent:#0277bd} .huc:nth-child(2){--accent:#00579c} .huc:nth-child(3){--accent:#0288d1} .huc:nth-child(4){--accent:#003c6e}
    .huc:hover { border-color: rgba(0,87,156,0.30); transform: translateY(-5px); box-shadow: 0 22px 42px -22px rgba(0,87,156,0.20), inset 0 1px 0 rgba(255,255,255,0.7); }
    .huc-head { display: flex; align-items: center; gap: 13px; }
    .huc-ic { width: 44px; height: 44px; border-radius: 11px; flex-shrink: 0; display: grid; place-items: center; color: var(--accent);
      background: color-mix(in srgb, var(--accent) 8%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 20%, transparent);
      transition: background .35s ease, color .35s ease, box-shadow .35s ease; }
    .huc-ic svg { width: 21px; height: 21px; }
    .huc:hover .huc-ic { background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 58%, #4fc3f7)); color: #fff; box-shadow: 0 6px 14px -5px color-mix(in srgb, var(--accent) 55%, transparent), inset 0 1px 0 rgba(255,255,255,0.25); }
    .huc-scene { font-family: var(--font); font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
    .huc-title { font-size: 17px; font-weight: 500; letter-spacing: -.02em; color: var(--t1); line-height: 1.2; margin-top: 2px; }
    .huc-value { font-size: 13px; font-weight: 700; color: var(--accent); }
    .huc-txt { font-size: 18px; color: var(--t2); line-height: 1.65; }
    .huc-tags { display: flex; gap: 7px; flex-wrap: wrap; padding-top: 16px; border-top: 1px dashed var(--border); }
    .huc-tag { font-size: 11px; font-weight: 600; font-family: var(--font); color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent); border-radius: 6px; padding: 4px 11px; }
    @media (max-width:760px){ .huc-grid{ grid-template-columns: 1fr; grid-template-rows: none; gap: 18px; } .huc{ display: flex; flex-direction: column; gap: 13px; grid-row: auto; } }

    /* ?T?T HCI — Use Cases reuse ZCF .uc-* in 4 columns ?T?T */
    .uc-grid--4 { grid-template-columns: 1fr 1fr; gap: 28px 20px; margin-top: 0; grid-template-rows: auto auto auto 1fr auto auto auto auto 1fr auto; }
    .uc-grid--4 .uc-card:nth-child(1), .uc-grid--4 .uc-card:nth-child(2) { grid-row: 1 / span 5; }
    .uc-grid--4 .uc-card:nth-child(3), .uc-grid--4 .uc-card:nth-child(4) { grid-row: 6 / span 5; }
    @media (max-width:720px){ .uc-grid--4 { grid-template-columns: 1fr; grid-template-rows: none; } .uc-grid--4 .uc-card { grid-row: auto; } }
    /* tighten card height: less padding + smaller internal gaps */
    .uc-grid--4 .uc-card { padding: 26px 26px; }
    .uc-grid--4 .uc-eyebrow { margin-bottom: 10px; }
    .uc-grid--4 .uc-title { font-size: 19px; margin-bottom: 5px; }
    .uc-grid--4 .uc-for { margin-bottom: 12px; min-height: 0; }
    .uc-grid--4 .uc-txt { line-height: 1.6; }
    .uc-grid--4 .uc-tags { padding-top: 14px; margin-top: 14px; }
    /* tags keep uniform size whether a card has 2 or 3 — no stretching */
    .uc-grid--4 .uc-tags { display: flex; flex-wrap: wrap; gap: 8px; align-content: flex-start; }
    .uc-grid--4 .uc-tag { flex: 0 0 auto; }

    /* ?T?T HCI — Architecture tweaks (spacing + short dashed divider) ?T?T */
    .alayer-detail--hci { margin-top: 22px; border-top: none; padding-top: 22px; position: relative; }
    .alayer-detail--hci::before { content: ''; position: absolute; top: 0; left: 0; width: 64px; height: 0; border-top: 2px dashed color-mix(in srgb, var(--accent) 55%, transparent); }
    .alayer-detail--hci .alayer-feats { gap: 16px 36px; }
    .alayer-detail--hci .alayer-feat { line-height: 1.6; }

    /* ?T?T HCI — Platform ecosystem flow (carousel + you-are-here) ?T?T */
    .pflow { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 10px; padding-top: 14px; }
    .pflow-node { position: relative; border-radius: 12px; padding: 18px 26px; font-size: 18px; font-weight: 800; letter-spacing: -.01em; border: 1px solid var(--border); background: var(--bg-card); color: var(--t2);
      transition: border-color .3s ease, transform .3s cubic-bezier(.2,.7,.2,1), box-shadow .3s ease, color .3s ease; }
    .pflow-node::after { content: ''; position: absolute; inset: -2px; border-radius: 14px; pointer-events: none; box-shadow: 0 0 0 2px transparent;
      animation: pflow-ring 3.6s ease-in-out infinite; animation-delay: var(--rd, 0s); }
    @keyframes pflow-ring { 0%,70%,100% { box-shadow: 0 0 0 2px transparent; } 16% { box-shadow: 0 0 0 2px var(--blue), 0 12px 28px -14px var(--blue-glow); } }
    .pflow-node:hover { transform: translateY(-3px); border-color: var(--border-hi); box-shadow: 0 14px 30px -20px var(--blue-glow); }
    .pflow-node--active { color: #fff; border-color: transparent; overflow: visible;
      background: linear-gradient(135deg, var(--blue), #0277bd); box-shadow: 0 12px 26px -12px var(--blue-glow); }
    .pflow-pin { width: 16px; height: 16px; vertical-align: -3px; margin-right: 7px; }
    .pflow-here { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); white-space: nowrap;
      display: inline-flex; align-items: center; gap: 5px; font-family: var(--font); font-size: 9.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
      color: #fff; background: linear-gradient(135deg, #0288d1, #29b6f6); border: 2px solid #fff; border-radius: 100px; padding: 4px 11px;
      box-shadow: 0 6px 16px -5px var(--blue-glow); animation: pflow-bob 2.4s ease-in-out infinite; z-index: 2; }
    .pflow-here svg { width: 11px; height: 11px; }
    @keyframes pflow-bob { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-3px); } }
    .pflow-arrow { color: var(--t3); display: grid; place-items: center; }
    .pflow-arrow svg { width: 20px; height: 20px; }
    @media (max-width:760px){ .pflow{ flex-direction: column; } .pflow-arrow{ transform: rotate(90deg); } }

    /* ?T?T AIOS — Architecture integration banner ?T?T */
    .arch-banner { display: flex; align-items: center; gap: 14px; padding: 16px 22px; margin-bottom: 18px; border-radius: 12px;
      background: var(--blue-faint); border: 1px solid var(--border-hi); }
    .arch-banner-ic { width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0; display: grid; place-items: center; color: #fff;
      background: linear-gradient(135deg, var(--blue), #0277bd); box-shadow: 0 4px 10px -4px var(--blue-glow); }
    .arch-banner-ic svg { width: 17px; height: 17px; }
    .arch-banner-label { font-family: var(--font); font-size: 12px; font-weight: 700; letter-spacing: .04em; color: var(--blue); }
    .arch-banner-text { font-size: 13px; color: var(--t2); }
    @media (max-width:640px){ .arch-banner { flex-direction: column; align-items: flex-start; gap: 6px; } }

    /* ?T?T AIOS — Product Advantages (5 in a row) ?T?T */
    .adv-row { display: grid; grid-template-columns: repeat(5,1fr); gap: 16px; }
    .adv-card {
      --accent:#0277bd; border-radius: var(--radius); padding: 28px 24px; position: relative; overflow: hidden;
      background-color: var(--bg-card);
      background-image: radial-gradient(circle, rgba(0,87,156,0.05) 1px, transparent 1.3px);
      background-size: 22px 22px;
      border: 1px solid var(--border); box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease;
    }
    /* large faint grid watermark, bottom-right */
    .adv-card::after { content: ''; position: absolute; right: -20px; bottom: -20px; width: 130px; height: 130px; pointer-events: none; opacity: .5;
      background-image:
        linear-gradient(to right, color-mix(in srgb, var(--accent) 15%, transparent) 1px, transparent 1px),
        linear-gradient(to bottom, color-mix(in srgb, var(--accent) 15%, transparent) 1px, transparent 1px);
      background-size: 26px 26px;
      -webkit-mask-image: radial-gradient(circle at bottom right, #000 0%, transparent 72%);
      mask-image: radial-gradient(circle at bottom right, #000 0%, transparent 72%);
      transition: opacity .35s ease; }
    .adv-card:hover::after { opacity: .9; }
    .adv-card:nth-child(1){--accent:#0277bd} .adv-card:nth-child(2){--accent:#00579c} .adv-card:nth-child(3){--accent:#0288d1}
    .adv-card:nth-child(4){--accent:#004a85} .adv-card:nth-child(5){--accent:#0d83d4}
    .adv-card:hover { border-color: rgba(0,87,156,0.30); transform: translateY(-4px); box-shadow: 0 20px 38px -22px rgba(0,87,156,0.20), inset 0 1px 0 rgba(255,255,255,0.7); }
    .adv-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; position: relative; z-index: 1; }
    .adv-ic { width: 38px; height: 38px; flex-shrink: 0; color: var(--accent); display: grid; place-items: center; }
    .adv-ic svg { width: 28px; height: 28px; stroke-width: 1.4; }
    .adv-card:hover .adv-ic { color: color-mix(in srgb, var(--accent) 78%, #4fc3f7); }
    .adv-title { font-size: 18px; font-weight: 500; letter-spacing: -.02em; color: var(--t1); line-height: 1.2; }
    .adv-body { font-size: 12.5px; color: var(--t2); line-height: 1.6; position: relative; z-index: 1; }
    @media (max-width:1024px){ .adv-row { grid-template-columns: repeat(2,1fr); } }
    @media (max-width:560px){ .adv-row { grid-template-columns: 1fr; } }

    /* ?T?T AIOS — Compatibility (two core capabilities) ?T?T */
    .compat-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
    .compat-panel {
      --accent:#00579c; border-radius: 18px; padding: 0; position: relative; overflow: hidden;
      background: var(--bg-card); border: 1px solid var(--border); box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, box-shadow .35s ease; display: flex; flex-direction: column;
    }
    .compat-panel:hover { border-color: var(--border-hi); box-shadow: 0 20px 44px -26px var(--blue-glow), inset 0 1px 0 rgba(255,255,255,0.7); }
    /* header band: engineering-blue + grid texture + glass */
    .compat-band { position: relative; overflow: hidden; padding: 30px 30px 26px;
      background: linear-gradient(135deg, #003a6e 0%, #00579c 55%, #0277bd 100%); }
    .compat-band::before { content: ''; position: absolute; inset: 0; pointer-events: none;
      background-image: linear-gradient(rgba(255,255,255,0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.07) 1px, transparent 1px);
      background-size: 26px 26px; mask-image: radial-gradient(ellipse 90% 120% at 15% 0%, #000 30%, transparent 80%); }
    .compat-band::after { content: ''; position: absolute; inset: 0; pointer-events: none; backdrop-filter: blur(1px);
      background: radial-gradient(ellipse 60% 80% at 85% 30%, rgba(79,195,247,0.22) 0%, transparent 62%); }
    .compat-band-title { position: relative; z-index: 1; font-size: 22px; font-weight: 500; letter-spacing: -.025em; line-height: 1.15; color: #fff;
      background: linear-gradient(120deg, #ffffff 0%, #cfe8ff 55%, #9fd8ff 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
    .compat-band-sub { position: relative; z-index: 1; margin-top: 10px; font-size: 13px; line-height: 1.6; color: rgba(255,255,255,0.82); max-width: 90%; }
    .compat-body { padding: 24px 26px 26px; display: flex; flex-direction: column; gap: 11px; flex: 1; }
    /* capability item with semantic linear icon */
    .compat-item { display: flex; align-items: flex-start; gap: 14px; padding: 15px 16px; border-radius: 12px; border: 1px solid var(--border); background: var(--bg-alt);
      transition: border-color .3s ease, transform .3s cubic-bezier(.2,.7,.2,1), box-shadow .3s ease; }
    .compat-item:hover { border-color: var(--border-hi); transform: translateX(3px); box-shadow: 0 12px 26px -20px var(--blue-glow); }
    .compat-item-ic { width: 30px; height: 30px; flex-shrink: 0; display: grid; place-items: center; color: var(--blue);
      transition: color .3s ease, transform .3s cubic-bezier(.2,.7,.2,1); }
    .compat-item-ic svg { width: 24px; height: 24px; stroke-width: 1.5; }
    .compat-item:hover .compat-item-ic { color: color-mix(in srgb, var(--blue) 75%, #4fc3f7); transform: translateY(-1px); }
    .compat-item-name { font-size: 14px; font-weight: 800; color: var(--t1); letter-spacing: -.01em; }
    .compat-item-desc { font-size: 12px; color: var(--t2); margin-top: 2px; line-height: 1.5; }
    .compat-item-tag { display: inline-block; margin-top: 5px; font-family: var(--font); font-size: 9.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--blue); background: var(--blue-faint); border: 1px solid var(--border-hi); border-radius: 5px; padding: 1px 7px; }
    .compat-item--accent { border-color: transparent; background: linear-gradient(135deg, var(--blue), #0277bd); }
    .compat-item--accent .compat-item-ic { color: #fff; }
    .compat-item--accent .compat-item:hover .compat-item-ic, .compat-item--accent:hover .compat-item-ic { color: #fff; }
    .compat-item--accent .compat-item-name { color: #fff; }
    .compat-item--accent .compat-item-desc { color: rgba(255,255,255,0.82); }
    .compat-note { margin: 0 26px 24px; padding-top: 15px; border-top: 1px dashed var(--border); font-size: 12.5px; color: var(--t2); line-height: 1.6; }
    @media (max-width:860px){ .compat-panels { grid-template-columns: 1fr; } }

    /* ?T?T RESOURCE — Documentation accordion (attachment-1 inspired) ?T?T */
    .doc-acc { display: flex; flex-direction: column; gap: 14px; max-width: 920px; margin: 0 auto; }
    .doc-acc-item { border-radius: var(--radius); border: 1px solid var(--border); background: var(--bg-card); overflow: hidden;
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.7); transition: border-color .3s ease, box-shadow .3s ease; }
    .doc-acc-item.open { border-color: var(--border-hi); box-shadow: 0 16px 38px -24px var(--blue-glow), inset 0 1px 0 rgba(255,255,255,0.7); }
    .doc-acc-head { width: 100%; display: flex; align-items: center; gap: 16px; padding: 22px 26px; cursor: pointer; background: none; border: none; text-align: left; }
    .doc-acc-eyebrow { font-family: var(--font); font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--blue); margin-bottom: 4px; }
    .doc-acc-name { font-size: 18px; font-weight: 500; letter-spacing: -.02em; color: var(--t1); line-height: 1.2; }
    .doc-acc-toggle { margin-left: auto; flex-shrink: 0; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--blue-faint); color: var(--blue); transition: background .3s ease, transform .3s ease; }
    .doc-acc-item.open .doc-acc-toggle { background: var(--blue); color: #fff; transform: rotate(45deg); }
    .doc-acc-toggle svg { width: 16px; height: 16px; }
    .doc-acc-panel { max-height: 0; overflow: hidden; transition: max-height .4s cubic-bezier(.2,.7,.2,1); }
    .doc-acc-item.open .doc-acc-panel { max-height: 420px; }
    .doc-acc-inner { padding: 0 26px 26px; }
    .doc-acc-desc { font-size: 18px; color: var(--t2); line-height: 1.62; margin-bottom: 16px; }
    .doc-acc-checks { display: grid; gap: 10px; margin-bottom: 20px; }
    .doc-acc-check { display: flex; align-items: center; gap: 11px; font-size: 13px; color: var(--t2); }
    .doc-acc-check-ic { flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; background: var(--blue-faint); color: var(--blue); display: grid; place-items: center; }
    .doc-acc-check-ic svg { width: 13px; height: 13px; }
    .doc-acc-rule { height: 2px; width: 64px; background: var(--blue); border-radius: 2px; margin-bottom: 20px; opacity: .85; }

    /* ── RESOURCE — Services (image + body, blue hover) ── */
    #services.section{
      padding:var(--space-section) 0;
      background:var(--bg-alt);
    }
    #services .zsec-head{
      text-align:center;
      max-width:760px;
      margin:0 auto var(--space-module);
    }

    #services .zsec-head .h2{
      margin:0;
      font-size:var(--font-size-display);
      font-weight:700;
      letter-spacing:-.03em;
      line-height:1.15;
      color:var(--color-title);
    }
    #services .zsec-head .h2 em{
      font-style:normal;
      color:inherit;
    }
    #services .zsec-head .sec-sub{
      margin:16px auto 0;
      max-width:700px;
      font-size:var(--font-size-base);
      line-height:1.7;
      color:var(--color-text-secondary);
    }
    #services .svc-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:var(--space-card);
    }
    #services .svc-card{
      display:flex;
      flex-direction:column;
      min-height:100%;
      border-radius:var(--radius-md);
      border:1px solid var(--color-border);
      background:var(--bg-card);
      overflow:hidden;
      text-decoration:none;
      color:inherit;
      box-sizing:border-box;
      transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease;
    }
    #services .svc-cover{
      position:relative;
      aspect-ratio:16 / 7;
      overflow:hidden;
      background:var(--bg-alt);
      line-height:0;
    }
    #services .svc-cover img{
      display:block;
      width:100%;
      height:100%;
      object-fit:cover;
      object-position:center;
      transition:transform .4s ease;
    }
    #services .svc-body{
      display:flex;
      flex-direction:column;
      flex:1;
      padding:var(--space-card) calc(var(--space-card) + 8px) calc(var(--space-card) + 4px);
      background:var(--bg-card);
      transition:background .28s ease;
    }
    #services .svc-name{
      margin:0 0 10px;
      font-size:var(--font-size-module-title);
      font-weight:700;
      letter-spacing:-.02em;
      line-height:1.3;
      color:var(--color-title);
      transition:color .28s ease;
    }
    #services .svc-desc{
      margin:0 0 var(--space-card);
      font-size:var(--font-size-body);
      line-height:1.7;
      color:var(--color-text-secondary);
      flex:1;
      transition:color .28s ease;
    }
    #services .svc-card .cta-btn{
      margin-top:auto;
      align-self:flex-start;
      width:fit-content;
      max-width:100%;
    }
    #services .svc-card:hover{
      border-color:transparent;
      box-shadow:var(--shadow-selected);
      transform:translateY(-4px);
    }
    #services .svc-card:hover .svc-cover img{
      transform:scale(1.03);
    }
    #services .svc-card:hover .svc-body{
      background-color:var(--color-primary);
      background-image:
        radial-gradient(120% 75% at 50% -10%,rgba(120,180,255,.22) 0%,rgba(120,180,255,0) 55%),
        var(--gradient-1);
      background-repeat:no-repeat,no-repeat;
      background-position:center,center;
      background-size:cover,cover;
    }
    #services .svc-card:hover .svc-name{
      color:var(--color-text-on-dark);
    }
    #services .svc-card:hover .svc-desc{
      color:var(--color-text-on-dark-muted);
    }
    #services .svc-card:hover .cta-btn{
      background:var(--bg);
      color:var(--color-primary);
      box-shadow:0 8px 22px -8px rgba(0,0,0,.28);
    }
    #services .svc-card:hover .cta-btn-ic{
      background:var(--color-primary);
      color:var(--color-text-on-dark);
    }

    @media (max-width:960px){
      #services .svc-grid{
        grid-template-columns:1fr;
        max-width:520px;
        margin:0 auto;
      }
      #services .svc-body{
        padding:var(--space-card);
      }
    }

    /* ── RESOURCE — Academy (left media + right body, stacked) ── */
    #academy.section{
      padding:var(--space-section) 0;
    }
    #academy .zsec-head{
      text-align:center;
      margin:0 auto var(--space-module);
    }

    #academy .zsec-head .h2{
      margin:0;
      font-size:var(--font-size-display);
      font-weight:700;
      letter-spacing:-.03em;
      line-height:1.15;
      color:var(--color-title);
    }
    #academy .zsec-head .h2 em{
      font-style:normal;
      color:inherit;
    }
    #academy .zsec-head .sec-sub{
      margin:16px auto 0;
      max-width:700px;
      font-size:var(--font-size-base);
      line-height:1.7;
      color:var(--color-text-secondary);
    }
    #academy .acad-grid{
      display:flex;
      flex-direction:column;
      gap:var(--space-card);
    }
    #academy .acad-card{
      display:grid;
      grid-template-columns:minmax(200px,.8fr) minmax(0,1.3fr);
  
    }
    #academy .acad-media{
      display:flex;
      align-items:center;
      justify-content:center;
      min-width:0;
      line-height:0;
     
    }
    #academy .acad-media img{
      display:block;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    #academy .acad-body{
      display:flex;
      flex-direction:column;
      align-items:flex-start;
      min-width:0;
      background: linear-gradient(342deg, #d2e7ff4d 14%, #d2e7ff1a 76%);
      box-sizing: border-box;
      border: 1px solid #E7EAF0;
      padding: var(--space-card) var(--space-module);
    }
    #academy .acad-name{
      margin:0 0 8px;
      font-size:var(--font-size-page-title);
      font-weight:700;
      letter-spacing:-.02em;
      line-height:1.25;
      color:var(--color-title);
    }
    #academy .acad-cat{
      margin:0 0 14px;
      font-family:var(--font-sans,var(--font));
      font-size:var(--font-size-caption);
      font-weight:600;
      letter-spacing:.04em;
      color:var(--t3);
    }
    #academy .acad-desc{
      margin:0 0 var(--space-card);
      font-size:var(--font-size-body);
      line-height:1.7;
      color:var(--color-text-secondary);
    }
    #academy .acad-tags{
      display:flex;
      flex-wrap:wrap;
      gap:12px 28px;
      margin:0 0 var(--space-card);
      padding:0;
      border:none;
    }
    #academy .acad-tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:0;
      border:none;
      border-radius:0;
      background:transparent;
      font-size:var(--font-size-body);
      font-weight:600;
      line-height:1.4;
      color:var(--color-text-secondary);
    }
    #academy .acad-tag::before{
      content:'';
      width:6px;
      height:6px;
      border-radius:50%;
      background:var(--color-primary);
      flex-shrink:0;
    }
    #academy .acad-tag b{
      color:inherit;
      font-weight:600;
      margin:0;
    }
    #academy .acad-card .cta-btn{
      margin-top:4px;
      width:fit-content;
      max-width:100%;
    }
    #academy .acad-card .cta-btn:hover{
      background:var(--color-primary-dim);
      color:var(--color-text-on-dark);
    }

    @media (max-width:960px){
      #academy .acad-card{
        grid-template-columns:1fr;
        gap:var(--space-card);
        padding:var(--space-card);
        text-align:left;
      }
      #academy .acad-media img{
        max-width:280px;
        margin:0 auto;
      }
      #academy .acad-name{
        font-size:var(--font-size-3xl);
      }
    }
    @media (max-width:640px){
      #academy .acad-tags{
        flex-direction:column;
        gap:10px;
      }
      #academy .acad-media img{
        max-width:220px;
      }
    }

    /* ?T?T RESOURCE — Contents (linear icon top-left) ?T?T */
    .res-ic { width: 38px; height: 38px; color: var(--accent); display: grid; place-items: center; margin-bottom: 14px; }
    .res-ic svg { width: 26px; height: 26px; stroke-width: 1.5; }
    .res-card:hover .res-ic { color: color-mix(in srgb, var(--accent) 78%, #4fc3f7); }

    /* ?T?T RESOURCE — card grids ?T?T */
    .res-grid { display: grid; gap: 18px; }
    .res-grid--3 { grid-template-columns: repeat(3,1fr); }
    .res-grid--2 { grid-template-columns: repeat(2,1fr); }
    @media (max-width:980px){ .res-grid--3 { grid-template-columns: 1fr 1fr; } }
    @media (max-width:680px){ .res-grid--3, .res-grid--2 { grid-template-columns: 1fr; } }
    /* API full-width banner card */

    .res-card {
      --accent:#0277bd; border-radius: var(--radius); padding: 28px 26px; position: relative; overflow: hidden;
      display: flex; flex-direction: column;
      background-color: var(--bg-card);
      background-image:
        linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, transparent) 0%, transparent 36%),
        radial-gradient(circle, rgba(0,87,156,0.05) 1px, transparent 1.3px);
      background-size: auto, 22px 22px;
      border: 1px solid var(--border); box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
      transition: border-color .35s ease, transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease;
    }
    .res-card:hover { border-color: rgba(0,87,156,0.30); transform: translateY(-4px); box-shadow: 0 20px 40px -22px rgba(0,87,156,0.20), inset 0 1px 0 rgba(255,255,255,0.7); }
    .res-grid--3 .res-card:nth-child(3n+1){--accent:#0277bd} .res-grid--3 .res-card:nth-child(3n+2){--accent:#00579c} .res-grid--3 .res-card:nth-child(3n+3){--accent:#0288d1}
    .res-grid--2 .res-card:nth-child(2n+1){--accent:#0277bd} .res-grid--2 .res-card:nth-child(2n+2){--accent:#00579c}
    .res-cat { font-family: var(--font); font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin-bottom: 11px; }
    .res-name { font-size: 18px; font-weight: 500; letter-spacing: -.02em; color: var(--t1); line-height: 1.25; margin-bottom: 10px; }
    .res-desc { font-size: 14px; color: var(--t2); line-height: 1.62; flex: 1; }
    .res-list { list-style: none; margin: 16px 0 0; padding: 14px 0 0; border-top: 1px dashed var(--border); display: flex; flex-direction: column; gap: 8px; }
    .res-list li { font-size: 12.5px; color: var(--t2); }
    .res-list li.sub { padding-left: 12px; position: relative; }
    .res-list li.sub::before { content: ''; position: absolute; left: 0; top: 8px; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); }
    .res-list a { color: var(--blue); font-weight: 600; }
    .res-list a:hover { text-decoration: underline; }
    .res-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; font-size: 18px; font-weight: 700; color: var(--accent); transition: gap .25s ease; align-self: flex-start; }
    .res-link svg { width: 14px; height: 14px; }
    .res-card:hover .res-link { gap: 10px; }

    /* ── RESOURCE — Documentation (design: 3+2 cards, blue hover) ── */
    #docs.section{
      padding:var(--space-section) 0;
    }
    #docs .zsec-head{
      text-align:center;
      max-width:760px;
      margin:0 auto var(--space-module);
    }

    #docs .zsec-head .h2{
      margin:0;
      font-size:var(--font-size-display);
      font-weight:700;
      letter-spacing:-.03em;
      line-height:1.15;
      color:var(--color-title);
    }
    #docs .zsec-head .h2 em{
      font-style:normal;
      color:inherit;
    }
    #docs .zsec-head .sec-sub{
      margin:16px auto 0;
      max-width:700px;
      font-size:var(--font-size-base);
      line-height:1.7;
      color:var(--color-text-secondary);
    }
    #docs .doc-grid{
      display:grid;
      grid-template-columns:repeat(6,minmax(0,1fr));
      gap:var(--space-card);
    }
    #docs .doc-card{
      grid-column:span 2;
      display:flex;
      flex-direction:column;
      min-height:280px;
      padding:var(--space-card) calc(var(--space-card) + 8px);
      border-radius:var(--radius-md);
      background: linear-gradient(3deg, #d2e7ff4d 5%, #d2e7ff1a 64%);
      border:1px solid var(--color-border);
      box-sizing:border-box;
      position:relative;
      overflow:hidden;
      transition:background .28s ease,border-color .28s ease,box-shadow .28s ease,transform .28s ease;
    }
    #docs .doc-card:nth-child(4){grid-column:2 / 4}
    #docs .doc-card:nth-child(5){grid-column:4 / 6}
    #docs .doc-cat{
      display:inline-flex;
      align-items:center;
      align-self:flex-start;
      height:28px;
      padding:0 12px;
      margin-bottom:14px;
      border-radius:var(--radius-pill);
      border:1px solid var(--border-hi);
      background:rgba(255,255,255,.72);
      color:var(--color-primary);
      font-family:var(--font-sans,var(--font));
      font-size:var(--font-size-caption);
      font-weight:700;
      letter-spacing:.06em;
      text-transform:uppercase;
      transition:background .28s ease,border-color .28s ease,color .28s ease;
    }
    #docs .doc-name{
      margin:0 0 12px;
      font-size:var(--font-size-module-title);
      font-weight:700;
      letter-spacing:-.02em;
      line-height:1.3;
      color:var(--color-title);
      transition:color .28s ease;
    }
    #docs .doc-name::after{display:none}
    #docs .doc-desc{
      margin:0 0 var(--space-card);
      font-size:var(--font-size-body);
      line-height:1.7;
      color:var(--color-text-secondary);
      flex:1;
      transition:color .28s ease;
    }
    #docs .doc-card .cta-btn{
      margin-top:auto;
      align-self:flex-start;
      width:fit-content;
      max-width:100%;
    }
    #docs .doc-card:hover{
      background-color:var(--color-primary);
      background-image:
        radial-gradient(120% 75% at 50% -10%,rgba(120,180,255,.30) 0%,rgba(120,180,255,0) 55%),
        url('/static/skin/images/single/resource/block-1-hover-bg.png'),
        var(--gradient-1);
      background-repeat:no-repeat,no-repeat,no-repeat;
      background-position:center,center,center;
      background-size:cover,cover,cover;
      border-color:transparent;
      box-shadow:var(--shadow-selected);
      transform:translateY(-4px);
    }
    #docs .doc-card:hover .doc-cat{
      background:rgba(255,255,255,.14);
      border-color:rgba(255,255,255,.45);
      color:var(--color-text-on-dark);
    }
    #docs .doc-card:hover .doc-name{
      color:var(--color-text-on-dark);
    }
    #docs .doc-card:hover .doc-desc{
      color:var(--color-text-on-dark-muted);
    }
    #docs .doc-card:hover .cta-btn{
      background:var(--bg);
      color:var(--color-primary);
      box-shadow:0 8px 22px -8px rgba(0,0,0,.28);
    }
    #docs .doc-card:hover .cta-btn-ic{
      background:var(--color-primary);
      color:var(--color-text-on-dark);
    }

    @media (max-width:960px){
      #docs .doc-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      #docs .doc-card,
      #docs .doc-card:nth-child(4),
      #docs .doc-card:nth-child(5){
        grid-column:auto;
      }
      #docs .doc-card{
        min-height:0;
        padding:var(--space-card);
      }
    }
    @media (max-width:640px){
      #docs .doc-grid{
        grid-template-columns:1fr;
      }
      #docs .doc-card .cta-btn{
        width:fit-content;
      }
    }

    /* ── RESOURCE — Contents (3-col cards, blue hover) ── */
    #contents.section{
      padding:var(--space-section) 0;
      background:var(--bg-alt);
    }
    #contents .zsec-head{
      text-align:center;
      max-width:760px;
      margin:0 auto var(--space-module);
    }

    #contents .zsec-head .h2{
      margin:0;
      font-size:var(--font-size-display);
      font-weight:700;
      letter-spacing:-.03em;
      line-height:1.15;
      color:var(--color-title);
    }
    #contents .zsec-head .h2 em{
      font-style:normal;
      color:inherit;
    }
    #contents .zsec-head .sec-sub{
      margin:16px auto 0;
      max-width:720px;
      font-size:var(--font-size-base);
      line-height:1.7;
      color:var(--color-text-secondary);
    }
    #contents .ccard-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:var(--space-card);
    }
    #contents .ccard{
      display:flex;
      flex-direction:column;
      min-height:260px;
      padding:var(--space-card) calc(var(--space-card) + 8px);
      border-radius:var(--radius-md);
      background:#FFFFFF;
      border:1px solid var(--color-border);
      box-sizing:border-box;
      position:relative;
      overflow:hidden;
      transition:background .28s ease,border-color .28s ease,box-shadow .28s ease,transform .28s ease;
    }
    #contents .ccard::before,
    #contents .ccard::after{display:none}
    #contents .ccard-cat{
      display:inline-flex;
      align-items:center;
      align-self:flex-start;
      height:28px;
      padding:0 12px;
      margin-bottom:14px;
      border-radius:var(--radius-pill);
      background: rgba(255, 255, 255, 0.01);
box-shadow: inset 0px -7px 12px 0px rgba(0, 87, 156, 0.12);
      color:var(--color-primary);
      font-family:var(--font-sans,var(--font));
      font-size:var(--font-size-caption);
      font-weight:700;
      letter-spacing:.06em;
      text-transform:uppercase;
      transition:background .28s ease,border-color .28s ease,color .28s ease;
    }
    #contents .ccard-name{
      margin:0 0 12px;
      font-size:var(--font-size-module-title);
      font-weight:700;
      letter-spacing:-.02em;
      line-height:1.3;
      color:var(--color-title);
      transition:color .28s ease;
    }
    #contents .ccard-desc{
      margin:0 0 var(--space-card);
      font-size:var(--font-size-body);
      line-height:1.7;
      color:var(--color-text-secondary);
      flex:1;
      transition:color .28s ease;
    }
    #contents .ccard .cta-btn{
      margin-top:auto;
      align-self:flex-start;
      width:fit-content;
      max-width:100%;
    }
    #contents .ccard:hover{
      background-color:var(--color-primary);
      background-image:
        radial-gradient(120% 75% at 50% -10%,rgba(120,180,255,.30) 0%,rgba(120,180,255,0) 55%),
        url('/static/skin/images/single/resource/block-4-hover-bg.png'),
        var(--gradient-1);
      background-repeat:no-repeat,no-repeat,no-repeat;
      background-position:center,center,center;
      background-size:cover,cover,cover;
      border-color:transparent;
      box-shadow:var(--shadow-selected);
      transform:translateY(-4px);
    }
    #contents .ccard:hover .ccard-cat{
      background: rgba(255, 255, 255, 0.01);

      box-shadow: inset 0px -7px 12px 0px rgba(255, 255, 255, 0.12);
      color:var(--color-text-on-dark);
    }
    #contents .ccard:hover .ccard-name{
      color:var(--color-text-on-dark);
    }
    #contents .ccard:hover .ccard-desc{
      color:var(--color-text-on-dark-muted);
    }
    #contents .ccard:hover .cta-btn{
      background:var(--bg);
      color:var(--color-primary);
      box-shadow:0 8px 22px -8px rgba(0,0,0,.28);
    }
    #contents .ccard:hover .cta-btn-ic{
      background:var(--color-primary);
      color:var(--color-text-on-dark);
    }

    @media (max-width:960px){
      #contents .ccard-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      #contents .ccard{
        min-height:0;
        padding:var(--space-card);
      }
    }
    @media (max-width:640px){
      #contents .ccard-grid{
        grid-template-columns:1fr;
      }
    }