.fumee-article {
      --ink: #173650;
      --muted: #526b80;
      --blue: #2777ad;
      --blue-deep: #185984;
      --pale: #eef7fc;
      --line: #d8e7f0;
      --white: #fff;
      --gold-bg: #fff8e9;
      --gold-line: #ead8ad;
      max-width: 1180px;
      margin: 0 auto;
      padding: 0 18px;
      color: var(--ink);
      font: 16px/1.72 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background: linear-gradient(180deg, #f3f9fd 0, #fff 500px);
    }
    .fumee-article *, .fumee-article *::before, .fumee-article *::after { box-sizing: border-box; }
    .fumee-article a { color: var(--blue-deep); text-underline-offset: .2em; }
    .fumee-article a:hover { color: #10456b; }
    .fumee-article .hero {
      position: relative;
      overflow: hidden;
      margin: 18px 0 24px;
      padding: clamp(30px, 6vw, 62px);
      border: 1px solid #cbdfea;
      border-radius: 25px;
      background: radial-gradient(circle at 92% 10%, rgba(190, 224, 245, .72), transparent 16rem), linear-gradient(120deg, #fff, #eff8fd 76%, #e7f3fb);
      box-shadow: 0 18px 42px rgba(22, 73, 111, .07);
    }
    .fumee-article .hero::after {
      content: "";
      position: absolute;
      right: -110px;
      bottom: -180px;
      width: 360px;
      height: 360px;
      border: 1px solid rgba(39, 119, 173, .16);
      border-radius: 50%;
      box-shadow: 0 0 0 35px rgba(39, 119, 173, .035), 0 0 0 72px rgba(39, 119, 173, .025);
      pointer-events: none;
    }
    .fumee-article .eyebrow {
      position: relative;
      z-index: 1;
      display: inline-flex;
      align-items: center;
      gap: 9px;
      margin: 0 0 16px;
      color: var(--blue-deep);
      font-size: .78rem;
      font-weight: 800;
      letter-spacing: .13em;
      text-transform: uppercase;
    }
    .fumee-article .eyebrow::before { content: ""; width: 24px; height: 2px; background: #65a3cf; }
    .fumee-article h1, .fumee-article h2, .fumee-article h3 { color: var(--ink); line-height: 1.23; }
    .fumee-article h1 {
      position: relative;
      z-index: 1;
      max-width: 900px;
      margin: 0;
      font-size: clamp(2rem, 5vw, 3.3rem);
      letter-spacing: -.04em;
    }
    .fumee-article .hero-lead {
      position: relative;
      z-index: 1;
      max-width: 760px;
      margin: 18px 0 0;
      color: var(--muted);
      font-size: clamp(1.02rem, 2vw, 1.18rem);
    }
    .fumee-article .byline { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 22px; color: #688197; font-size: .9rem; }
    .fumee-article .byline span::before { content: "•"; margin-right: 8px; color: #5797c9; }
    .fumee-article .layout { display: grid; grid-template-columns: minmax(0, 1fr) 255px; align-items: start; gap: 24px; margin-bottom: 50px; }
    .fumee-article article, .fumee-article .side-card, .fumee-article .callout, .fumee-article .cost-card, .fumee-article .faq details {
      border: 1px solid var(--line);
      border-radius: 16px;
      background: var(--white);
      box-shadow: 0 8px 24px rgba(26, 65, 98, .045);
    }
    .fumee-article article { min-width: 0; padding: clamp(22px, 4vw, 42px); }
    .fumee-article .summary { margin: 0 0 28px; padding: 19px 21px; border: 1px solid #c9e0ef; border-left: 4px solid var(--blue); border-radius: 12px; background: linear-gradient(110deg, #eff8fe, #fbfdff); }
    .fumee-article .summary strong { display: block; margin-bottom: 5px; }
    .fumee-article .summary p { margin: 0; color: var(--muted); }
    .fumee-article section { scroll-margin-top: 24px; }
    .fumee-article article section + section { margin-top: 38px; }
    .fumee-article h2 { margin: 0 0 13px; font-size: clamp(1.4rem, 3vw, 1.85rem); letter-spacing: -.025em; }
    .fumee-article h3 { margin: 0 0 8px; font-size: 1.1rem; }
    .fumee-article p { margin: 0 0 14px; }
    .fumee-article .lede { color: var(--muted); font-size: 1.04rem; }
    .fumee-article .cost-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 19px 0; }
    .fumee-article .cost-card { padding: 18px; background: linear-gradient(160deg, #fff, #f7fbfe); }
    .fumee-article .cost-card .amount { display: block; margin: 8px 0 4px; color: var(--blue-deep); font-size: 1.55rem; font-weight: 800; letter-spacing: -.03em; }
    .fumee-article .cost-card p { margin: 0; color: var(--muted); font-size: .91rem; }
    .fumee-article .table-wrap { overflow-x: auto; margin: 18px 0; border: 1px solid var(--line); border-radius: 13px; }
    .fumee-article table { width: 100%; min-width: 620px; border-collapse: collapse; background: #fff; }
    .fumee-article th, .fumee-article td { padding: 13px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
    .fumee-article th { background: #edf7fc; color: var(--ink); font-size: .9rem; }
    .fumee-article td { color: var(--muted); font-size: .93rem; }
    .fumee-article tr:last-child td { border-bottom: 0; }
    .fumee-article .caption { margin-top: -7px; color: #71879a; font-size: .86rem; }
    .fumee-article .formula { margin: 18px 0; padding: 17px 19px; border: 1px solid #c9e0ef; border-radius: 12px; background: var(--pale); color: var(--ink); font-weight: 700; }
    .fumee-article .formula span { display: block; margin-top: 5px; color: var(--muted); font-size: .9rem; font-weight: 400; }
    .fumee-article .checklist { margin: 12px 0 0; padding-left: 1.2rem; }
    .fumee-article .checklist li { margin: 9px 0; padding-left: 3px; }
    .fumee-article .checklist li::marker { color: var(--blue); }
    .fumee-article .callout { margin-top: 23px; padding: 22px; border-color: #c7deed; background: linear-gradient(115deg, #eaf6fd, #fff 80%); }
    .fumee-article .callout-label { display: block; margin-bottom: 6px; color: var(--blue-deep); font-size: .76rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
    .fumee-article .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; margin-top: 5px; padding: 12px 17px; border: 1px solid var(--blue-deep); border-radius: 999px; background: var(--blue-deep); color: #fff; font-weight: 700; text-decoration: none; transition: background .18s ease, transform .18s ease; }
    .fumee-article .button:hover { transform: translateY(-1px); background: #124a77; color: #fff; }
    .fumee-article .notice { margin: 17px 0 0; padding: 16px 18px; border: 1px solid var(--gold-line); border-radius: 12px; background: var(--gold-bg); color: #5c4b2b; }
    .fumee-article .notice p { margin: 0; }
    .fumee-article .faq { display: grid; gap: 10px; margin-top: 17px; }
    .fumee-article .faq details { overflow: hidden; }
    .fumee-article .faq summary { position: relative; padding: 15px 46px 15px 17px; cursor: pointer; list-style: none; color: var(--ink); font-weight: 700; }
    .fumee-article .faq summary::-webkit-details-marker { display: none; }
    .fumee-article .faq summary::after { content: "+"; position: absolute; top: 50%; right: 17px; transform: translateY(-50%); color: var(--blue); font-size: 1.35rem; font-weight: 500; }
    .fumee-article .faq details[open] summary { background: #f2f9fd; }
    .fumee-article .faq details[open] summary::after { content: "−"; }
    .fumee-article .answer { padding: 0 17px 16px; color: var(--muted); }
    .fumee-article .answer p:last-child { margin-bottom: 0; }
    .fumee-article .references { padding-left: 1.15rem; }
    .fumee-article .references li { margin: 9px 0; }
    .fumee-article .fineprint { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); color: #71859a; font-size: .87rem; }
    .fumee-article aside { position: sticky; top: 18px; }
    .fumee-article .side-card { padding: 20px; }
    .fumee-article .side-card h2 { margin-bottom: 11px; font-size: 1.05rem; }
    .fumee-article .side-card ol { margin: 0; padding-left: 1.15rem; color: var(--muted); font-size: .92rem; }
    .fumee-article .side-card li { margin: 8px 0; }
    .fumee-article .side-card a { text-decoration: none; }
    .fumee-article .side-card a:hover { text-decoration: underline; }
    .fumee-article .side-note { margin-top: 14px; padding: 14px; border-radius: 11px; background: var(--pale); color: var(--muted); font-size: .89rem; }
    .fumee-article .article-footer { margin: 22px 0 0; padding: 18px 0 30px; border-top: 1px solid var(--line); color: #74889a; font-size: .86rem; }
    @media (max-width: 850px) {
      .fumee-article .layout { grid-template-columns: 1fr; }
      .fumee-article aside { position: static; order: -1; }
      .fumee-article .side-card ol { columns: 2; column-gap: 26px; }
    }
    @media (max-width: 620px) {
      .fumee-article { padding: 0 12px; }
      .fumee-article .hero { margin-top: 12px; padding: 27px 20px; border-radius: 19px; }
      .fumee-article .hero::after { width: 220px; height: 220px; right: -100px; bottom: -125px; }
      .fumee-article .layout { gap: 13px; margin-bottom: 34px; }
      .fumee-article article { padding: 21px 17px; border-radius: 14px; }
      .fumee-article .cost-grid { grid-template-columns: 1fr; }
      .fumee-article .side-card ol { columns: 1; }
      .fumee-article .callout { padding: 18px; }
      .fumee-article .button { width: 100%; text-align: center; }
      .fumee-article .faq summary { padding-left: 14px; }
      .fumee-article .answer { padding-right: 14px; padding-left: 14px; }
    }
    @media (prefers-reduced-motion: reduce) { .fumee-article * { scroll-behavior: auto !important; transition-duration: .01ms !important; } }