.photonOpticalArticle {
      --ink: #17202c;
      --muted: #687484;
      --paper: #ffffff;
      --card: #ffffff;
      --line: #e3e8f3;
      --navy: #162b46;
      --blue: #2a73a8;
      --cyan: #4bb6b5;
      --orange: #e9784c;
      --yellow: #efbf5a;
      --shadow: 0 10px 28px rgba(56, 75, 120, .07);
      --radius: 24px;
    }

    .photonOpticalArticle * { box-sizing: border-box; }
        .photonOpticalArticle {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    .photonOpticalArticle a { color: inherit; }
    .progress { position: fixed; inset: 0 0 auto; height: 4px; background: linear-gradient(90deg, var(--orange), var(--yellow), var(--cyan)); transform-origin: left; transform: scaleX(0); z-index: 20; }
    .photonOpticalShell { width: min(900px, calc(100% - 40px)); margin: 0 auto; }
    .photonOpticalEyebrow { text-transform: uppercase; letter-spacing: .16em; font-size: 11px; font-weight: 800; color: var(--orange); }
    .topbar { padding: 26px 0 8px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: flex; align-items: center; gap: 11px; text-decoration: none; font-size: 12px; font-weight: 800; letter-spacing: .05em; }
    .brand-mark { width: 28px; height: 28px; border-radius: 9px; background: var(--navy); position: relative; box-shadow: 5px 5px 0 var(--cyan); }
    .brand-mark::after { content: ""; position: absolute; left: 8px; top: 8px; width: 12px; height: 12px; border: 2px solid #fff; border-radius: 50%; }
    .source-link { font-size: 12px; color: var(--muted); text-decoration: none; border-bottom: 1px solid #c6c2ba; }

    .photonOpticalHero { padding: 34px 0 38px; position: relative; overflow: hidden; }
    .photonOpticalHero::before, .photonOpticalHero::after { display: none; }
    .photonOpticalHeroGrid { display: block; position: relative; z-index: 1; }
    .photonOpticalArticle h1, .photonOpticalArticle h2, .photonOpticalArticle h3, .photonOpticalArticle p { margin-top: 0; }
    h1 { font-size: clamp(35px, 5vw, 50px); line-height: 1.16; letter-spacing: -.045em; max-width: 840px; margin: 10px 0 15px; font-weight: 850; }
    .photonOpticalDek { color: #455779; max-width: 900px; font-size: 16px; line-height: 1.7; background: #f3f6ff; border-left: 5px solid #5b6cff; border-radius: 0 15px 15px 0; padding: 18px 22px; margin: 31px 0 0; }
    .photonOpticalHeroMet.photonOpticalArticle a { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 2px; color: #9aa4b4; }
    .photonOpticalChip { padding: 0; border: 0; background: transparent; border-radius: 0; font-size: 14px; font-weight: 500; color: #9aa4b4; }
    .photonOpticalChip:not(:last-child)::after { content: "·"; color: #c4cad4; margin-left: 16px; }
    .photonOpticalHeroArt { display: none; }
    .orb { position: absolute; width: 290px; height: 290px; border: 1px solid rgba(42,115,168,.22); border-radius: 50%; transform: rotate(-18deg); }
    .orb::before, .orb::after { content: ""; position: absolute; border: 1px solid rgba(75,182,181,.35); border-radius: 50%; inset: 26px -12px; transform: rotate(42deg); }
    .orb::after { inset: 68px -31px; border-color: rgba(233,120,76,.4); transform: rotate(-65deg); }
    .core { width: 134px; height: 134px; border-radius: 36px; background: var(--navy); color: #fff; display: grid; place-items: center; text-align: center; line-height: 1.15; font-weight: 800; letter-spacing: -.02em; box-shadow: 16px 16px 0 var(--orange), 0 22px 45px rgba(22,43,70,.25); }
    .core small { display: block; color: #97d8d5; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 7px; }
    .orbit-label { position: absolute; font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--navy); }
    .orbit-label.one { top: 18px; right: 38px; }
    .orbit-label.two { bottom: 30px; left: 18px; }

    .photonOpticalSection { padding: 42px 0; }
    .photonOpticalSectionHead { display: block; margin-bottom: 22px; }
    .photonOpticalSectionHead h2 { font-size: clamp(27px, 4vw, 34px); line-height: 1.15; letter-spacing: -.04em; margin: 8px 0 10px; }
    .photonOpticalSectionIntro { max-width: 900px; color: #7f8ba0; margin: 0; font-size: 15px; }
    .photonOpticalRouteCard { background: #fff; color: var(--ink); border: 1px solid var(--line); border-radius: 20px; padding: 20px; box-shadow: none; overflow: hidden; position: relative; }
    .photonOpticalRouteCard::before { display: none; }
    .photonOpticalRouteCaption { color: #5c6cff; text-transform: uppercase; letter-spacing: .14em; font-size: 11px; font-weight: 800; }
    .photonOpticalRouteCard h3 { max-width: 620px; font-size: 20px; line-height: 1.35; letter-spacing: -.025em; margin: 8px 0 20px; }
    .photonOpticalRoute { display: grid; grid-template-columns: repeat(7, 1fr); gap: 7px; position: relative; }
    .photonOpticalRoute::before { display: none; }
    .photonOpticalRouteStep { position: relative; z-index: 1; }
    .photonOpticalRouteDot { width: 100%; min-height: 46px; border-radius: 12px; display: grid; place-items: center; background: #eef1ff; border: 0; color: #5465d8; font-weight: 850; margin-bottom: 8px; font-size: 17px; }
    .photonOpticalRouteStep:nth-child(2) .photonOpticalRouteDot { background: #ebf8f2; color: #1d9a61; }
    .photonOpticalRouteStep:nth-child(3) .photonOpticalRouteDot { background: #fff5e7; color: #d58417; }
    .photonOpticalRouteStep:nth-child(4) .photonOpticalRouteDot { background: #fff0f4; color: #d15d78; }
    .photonOpticalRouteStep:nth-child(5) .photonOpticalRouteDot { background: #f4edff; color: #8953d3; }
    .photonOpticalRouteStep:nth-child(6) .photonOpticalRouteDot { background: #edf5ff; color: #3e86c4; }
    .photonOpticalRouteStep:nth-child(7) .photonOpticalRouteDot { background: #e9f8fb; color: #1595ac; }
    .photonOpticalRouteStep strong { display: none; }
    .photonOpticalRouteStep span { display: block; color: #8490a2; font-size: 12px; line-height: 1.35; text-align: center; }
    .photonOpticalRouteFoot { margin: 14px 0 0; padding-top: 13px; border-top: 0; color: #a1aaba; display: flex; justify-content: space-between; gap: 20px; font-size: 12px; }

    .photonOpticalTechGrid { display: grid; grid-template-columns: 1fr; gap: 16px; }
    .photonOpticalTechCard { background: var(--card); border: 1px solid #dfe6fa; border-radius: 20px; padding: 25px; position: relative; overflow: hidden; transition: transform .25s ease, box-shadow .25s ease; }
    .photonOpticalTechCard:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
    .photonOpticalTechCard.photonOpticalFeature { grid-column: span 1; background: var(--card); border-color: #dfe6fa; }
    .photonOpticalTechCard::after { content: attr(data-code); position: absolute; right: 20px; top: 8px; font-size: 55px; font-weight: 900; letter-spacing: -.08em; color: rgba(82,101,216,.055); }
    .photonOpticalTechTop { display: flex; align-items: center; gap: 12px; position: relative; z-index: 1; }
    .photonOpticalTechCode { width: 76px; height: 42px; border-radius: 11px; background: #5465d8; color: #fff; display: grid; place-items: center; font-weight: 900; font-size: 13px; }
    .photonOpticalTechCard:nth-child(2) .photonOpticalTechCode, .photonOpticalTechCard:nth-child(5) .photonOpticalTechCode { background: #df9a3e; }
    .photonOpticalTechCard:nth-child(3) .photonOpticalTechCode, .photonOpticalTechCard:nth-child(6) .photonOpticalTechCode { background: #2da77e; }
    .photonOpticalTechTop h3 { font-size: 22px; letter-spacing: -.035em; margin: 0; }
    .photonOpticalTechName { color: var(--muted); font-size: 12px; font-weight: 700; margin-top: 1px; }
    .photonOpticalOneLiner { font-size: 16px; line-height: 1.65; margin: 20px 0 22px; max-width: 820px; }
    .photonOpticalTechColumns { display: grid; grid-template-columns: 1fr 1fr; gap: 23px; }
    .photonOpticalTechBlock { border-top: 1px solid var(--line); padding-top: 13px; }
    .photonOpticalTechBlock h4 { margin: 0 0 6px; font-size: 10px; text-transform: uppercase; letter-spacing: .14em; color: var(--orange); }
    .photonOpticalTechBlock p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }
    .photonOpticalTechProgress { border-top: 1px solid var(--line); margin-top: 20px; padding-top: 14px; color: #536071; font-size: 12px; }
    .photonOpticalTechProgress strong { color: var(--ink); }

    .photonOpticalTableWrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow); }
    table { border-collapse: collapse; width: 100%; min-width: 1050px; font-size: 12px; }
    th, td { padding: 15px 13px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
    thead th { background: var(--navy); color: #fff; font-size: 12px; position: sticky; top: 0; z-index: 2; }
    thead th:first-child { border-radius: 23px 0 0 0; width: 145px; }
    thead th:last-child { border-radius: 0 23px 0 0; }
    tbody tr:last-child td { border-bottom: 0; }
    tbody td:first-child { font-weight: 800; color: var(--navy); background: #faf8f3; }
    tbody tr:nth-child(even) td:not(:first-child) { background: #fcfbf7; }
    .photonOpticalTableNote { display: flex; justify-content: space-between; gap: 20px; color: var(--muted); font-size: 12px; margin: 14px 3px 0; }

    .photonOpticalBattle { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .photonOpticalBattleCard { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 27px; }
    .photonOpticalBattleCard h3 { font-size: 18px; margin-bottom: 9px; letter-spacing: -.025em; }
    .photonOpticalBattleCard p { color: var(--muted); font-size: 14px; line-height: 1.65; margin: 0; }
    .photonOpticalBattleCard.photonOpticalWide { grid-column: span 2; background: var(--navy); color: #fff; }
    .photonOpticalBattleCard.photonOpticalWide h3 { color: #91d2cf; }
    .photonOpticalBattleCard.photonOpticalWide p { color: #c4cfd7; max-width: 850px; }

    .photonOpticalQuick { display: grid; grid-template-columns: .7fr 1.3fr; gap: 20px; align-items: stretch; }
    .photonOpticalQuickLead { background: var(--orange); color: #fff; border-radius: var(--radius); padding: 32px; display: flex; flex-direction: column; justify-content: space-between; min-height: 330px; }
    .photonOpticalQuickLead h2 { font-size: 42px; letter-spacing: -.055em; line-height: 1; margin: 9px 0 0; }
    .photonOpticalQuickLead p { font-size: 14px; color: #fff3e7; }
    .photonOpticalQuickList { display: grid; gap: 10px; }
    .photonOpticalQuickRow { display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: center; padding: 17px 20px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; }
    .photonOpticalQuickRow span { color: var(--muted); font-size: 13px; }
    .photonOpticalQuickRow strong { color: var(--navy); font-size: 18px; letter-spacing: -.03em; }

    .photonOpticalClosing { padding: 92px 0 110px; }
    .photonOpticalClosingCard { border-radius: 30px; background: var(--navy); color: #fff; padding: clamp(28px, 6vw, 72px); position: relative; overflow: hidden; }
    .photonOpticalClosingCard::after { content: ""; position: absolute; width: 300px; height: 300px; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; right: -120px; bottom: -140px; }
    .photonOpticalClosingCard h2 { font-size: clamp(37px, 6vw, 72px); line-height: .98; letter-spacing: -.065em; max-width: 700px; margin: 10px 0 23px; position: relative; z-index: 1; }
    .photonOpticalClosingCard p { max-width: 760px; color: #c8d2d9; font-size: 16px; position: relative; z-index: 1; }
    .photonOpticalClosingCard .photonOpticalAccent { color: #91d2cf; }
    
    @media (max-width: 900px) {
      .photonOpticalHeroGrid, .photonOpticalQuick { grid-template-columns: 1fr; gap: 30px; }
      .photonOpticalHero { padding-top: 50px; }
      .photonOpticalHeroArt { min-height: 290px; }
      .photonOpticalSectionHead { display: block; }
      .photonOpticalSectionIntro { margin-top: 16px; }
      .photonOpticalRoute { grid-template-columns: repeat(4, 1fr); row-gap: 27px; }
      .photonOpticalRoute::before { display: none; }
      .photonOpticalTechGrid { grid-template-columns: 1fr; }
      .photonOpticalTechCard.photonOpticalFeature { grid-column: span 1; }
      .photonOpticalBattle { grid-template-columns: 1fr; }
      .photonOpticalBattleCard.photonOpticalWide { grid-column: span 1; }
    }
    @media (max-width: 620px) {
      .photonOpticalShell { width: min(100% - 28px, 1180px); }
      .topbar { padding-top: 20px; }
      .source-link { display: none; }
      h1 { font-size: 51px; }
      .photonOpticalSection { padding: 52px 0; }
      .photonOpticalRoute { grid-template-columns: repeat(2, 1fr); }
      .photonOpticalRouteFoot,       .photonOpticalRouteFoot span, footer span { display: block; margin-top: 8px; }
      .photonOpticalTechCard { padding: 22px; }
      .photonOpticalTechColumns { grid-template-columns: 1fr; gap: 18px; }
      .photonOpticalQuickLead { min-height: 240px; }
      .photonOpticalQuickRow { grid-template-columns: 1fr; gap: 3px; }
    }
  
.photonOpticalArticle {
  width: min(900px, calc(100% - 40px));
  margin: 34px auto 72px;
  padding: 0;
  background: #fff;
  color: #17202c;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
.photonOpticalArticle .photonOpticalShell { width: 100%; }
.photonOpticalBrandline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 0 22px;
  border-bottom: 1px solid #e5eaf2;
}
.photonOpticalBrandline a { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.photonOpticalBrandline img { width: 118px; height: auto; max-height: 58px; object-fit: contain; }
.photonOpticalBrandline strong { color: #0f2742; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.photonOpticalBrandline span { color: #8a96a8; font-size: 12px; }
.photonOpticalContactCard {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 18px;
  margin: 30px 0 0;
  padding: 24px;
  border: 1px solid #d8e5f0;
  border-radius: 18px;
  background: linear-gradient(135deg, #eef7fc, #f8fbff);
}
.photonOpticalContactCard h3 { margin: 0 0 7px; color: #0f2742; font-size: 21px; line-height: 1.2; }
.photonOpticalContactCard p { margin: 0; color: #68778b; font-size: 13px; line-height: 1.6; }
.photonOpticalContactLinks { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 9px; }
.photonOpticalContactLinks a { padding: 9px 13px; border-radius: 999px; background: #0f2742; color: #fff; font-size: 12px; font-weight: 700; text-decoration: none; }
.photonOpticalContactLinks a:nth-child(2) { background: #11a6e4; }
.photonOpticalContactLinks a:nth-child(3) { background: #f07c00; }
.photonOpticalArticle .photonOpticalHero { padding-top: 46px; }
.photonOpticalArticle .photonOpticalRoute { margin-top: 4px; }
.photonOpticalArticle .photonOpticalTechGrid { grid-template-columns: 1fr; }
.photonOpticalArticle .photonOpticalTechCard.photonOpticalFeature { grid-column: span 1; }
.photonOpticalArticle .photonOpticalTechCard { box-shadow: none; }
.photonOpticalArticle .photonOpticalHeroArt { display: none; }
@media (max-width: 620px) {
  .photonOpticalArticle { width: min(100% - 28px, 900px); margin-top: 18px; }
  .photonOpticalBrandline { align-items: flex-start; }
  .photonOpticalBrandline span { max-width: 120px; text-align: right; }
  .photonOpticalContactCard { grid-template-columns: 1fr; }
  .photonOpticalContactLinks { justify-content: flex-start; }
}