.length-guide {
    --ink: #171715;
    --muted: #6f6b63;
    --paper: #fffdf8;
    --soft: #f4f0e8;
    --line: #ded7ca;
    --accent: #a77824;
    --accent-light: #d6b46d;
    max-width: 920px;
    margin: 0 auto;
    color: var(--ink);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 18px;
    line-height: 1.78;
  }
  .length-guide * { box-sizing: border-box; }
  .length-guide .hero {
    margin: 0 0 42px;
    overflow: hidden;
    border-radius: 4px 4px 28px 4px;
    background: linear-gradient(135deg, #111 0%, #24221e 70%, #583c16 100%);
    box-shadow: 0 24px 60px rgba(35, 29, 20, .16);
  }
  .length-guide .hero-visual {
    min-height: 260px;
    padding: clamp(28px, 5vw, 54px);
    background:
      radial-gradient(circle at 70% 30%, rgba(214,180,109,.28), transparent 26%),
      linear-gradient(160deg, transparent 0 50%, rgba(255,255,255,.08) 50% 51%, transparent 51%),
      #181713;
  }
  .length-guide .scale {
    display: grid;
    gap: 16px;
    max-width: 520px;
    color: #f5f1e9;
    font-family: Arial, sans-serif;
    font-size: 13px;
  }
  .length-guide .scale span { display: grid; grid-template-columns: 60px 1fr; align-items: center; gap: 14px; }
  .length-guide .scale i { height: 3px; border-radius: 999px; background: linear-gradient(90deg, var(--accent-light), #fff0c8); }
  .length-guide .scale span:nth-child(1) i { width: 52%; }
  .length-guide .scale span:nth-child(2) i { width: 66%; }
  .length-guide .scale span:nth-child(3) i { width: 82%; }
  .length-guide .scale span:nth-child(4) i { width: 100%; }
  .length-guide .hero-copy { padding: 34px clamp(24px, 5vw, 54px) 38px; color: #fff; background: linear-gradient(135deg, #111 0%, #24221e 72%, #493719 100%); }
  .length-guide .kicker { display: block; margin-bottom: 12px; color: var(--accent-light); font-family: Arial, sans-serif; font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
  .length-guide h1 { max-width: 790px; margin: 0; color: #fff; font-size: clamp(38px, 7vw, 68px); font-weight: 500; line-height: .98; letter-spacing: -.035em; }
  .length-guide .dek { max-width: 700px; margin: 22px 0 0; color: #d8d4cc; font-family: Arial, sans-serif; font-size: 16px; line-height: 1.65; }
  .length-guide .meta { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
  .length-guide .meta span { padding: 7px 11px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; color: #f1eee8; font-family: Arial, sans-serif; font-size: 12px; }
  .length-guide .lead { margin: 0 0 38px; padding: 4px clamp(0px, 3vw, 30px); font-size: 21px; line-height: 1.65; }
  .length-guide .toc { margin: 36px 0 54px; padding: 26px 28px 24px; border: 1px solid var(--line); border-left: 5px solid var(--accent); background: var(--paper); }
  .length-guide .toc strong { display: block; margin-bottom: 14px; font-family: Arial, sans-serif; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; }
  .length-guide .toc ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 30px; margin: 0; padding-left: 22px; }
  .length-guide .toc a { color: var(--ink); font-family: Arial, sans-serif; font-size: 14px; text-decoration-color: #c7aa70; text-underline-offset: 4px; }
  .length-guide h2 { position: relative; margin: 68px 0 20px; padding-top: 18px; border-top: 1px solid var(--line); font-size: clamp(28px, 4vw, 40px); font-weight: 500; line-height: 1.12; letter-spacing: -.02em; }
  .length-guide h2::before { content: ""; position: absolute; top: -2px; left: 0; width: 76px; height: 3px; background: var(--accent); }
  .length-guide h3 { margin-top: 34px; font-size: 23px; line-height: 1.3; }
  .length-guide p { margin: 0 0 20px; }
  .length-guide a { color: #7f5717; text-underline-offset: 3px; }
  .length-guide ul, .length-guide ol { margin: 24px 0 30px; padding-left: 28px; }
  .length-guide li { margin-bottom: 10px; padding-left: 6px; }
  .length-guide figure { margin: 34px 0; }
  .length-guide .feature-figure,
  .length-guide .image-pair figure {
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 5px 24px 5px 5px;
    background: #fff;
    box-shadow: 0 18px 42px rgba(36, 27, 14, .09);
  }
  .length-guide figure img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 3px 18px 3px 3px;
  }
  .length-guide figcaption {
    margin: 12px 2px 2px;
    color: var(--muted);
    font-family: Arial, sans-serif;
    font-size: 13px;
    line-height: 1.55;
  }
  .length-guide .image-pair {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin: 30px 0 38px;
  }
  .length-guide .image-pair figure { margin: 0; }
  .length-guide .card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 28px 0 34px; padding: 0; list-style: none; }
  .length-guide .card-grid li { margin: 0; padding: 20px; border: 1px solid var(--line); background: var(--paper); }
  .length-guide .card-grid strong { display: block; margin-bottom: 5px; color: var(--accent); font-family: Arial, sans-serif; font-size: 13px; letter-spacing: .05em; text-transform: uppercase; }
  .length-guide .note { margin: 30px 0; padding: 22px 24px; border-radius: 3px 18px 3px 3px; color: #f5f1e9; background: #1c1b18; }
  .length-guide .note strong { color: var(--accent-light); }
  .length-guide .product-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin: 34px 0 12px;
  }
  .length-guide .product-links a {
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: 3px 16px 3px 3px;
    color: var(--ink);
    background: var(--paper);
    font-family: Arial, sans-serif;
    font-size: 14px;
    font-weight: 700;
    text-decoration-color: var(--accent-light);
  }
  .length-guide .faq { margin-top: 72px; padding: 2px clamp(22px, 5vw, 44px) 28px; border-radius: 4px 28px 4px 4px; background: var(--soft); }
  .length-guide .faq h2 { margin-top: 38px; }
  @media (max-width: 680px) {
    .length-guide { font-size: 17px; line-height: 1.72; }
    .length-guide .hero { margin-left: -10px; margin-right: -10px; border-radius: 0 0 22px 0; }
    .length-guide .hero-copy { padding: 28px 22px 32px; }
    .length-guide h1 { font-size: clamp(38px, 12vw, 56px); }
    .length-guide .lead { font-size: 19px; }
    .length-guide .toc ol,
    .length-guide .card-grid,
    .length-guide .image-pair,
    .length-guide .product-links { grid-template-columns: 1fr; }
  }