html { scroll-behavior: smooth; }
body { margin: 0; background: #f3f6fa; }
.el-laser-guide { --ink: #132b4b; --text: #3c4e65; --blue: #2367b4; --teal: #157a80; --line: #dbe5ef; --pale: #edf5fc; color: var(--text); font: 17px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; }
.el-laser-guide *, .el-laser-guide *::before, .el-laser-guide *::after { box-sizing: border-box; }
.el-laser-guide a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.el-laser-guide a:hover { color: #154676; }
.el-laser-guide a:focus-visible, .el-laser-guide summary:focus-visible, .el-laser-guide .el-table-wrap:focus-visible { outline: 3px solid #1d7bcf; outline-offset: 5px; }
.el-laser-guide p { margin: 0 0 18px; }
.el-laser-guide h1, .el-laser-guide h2, .el-laser-guide h3 { color: var(--ink); line-height: 1.25; letter-spacing: -.025em; }
.el-laser-guide h2 { margin: 0 0 20px; font-size: 32px; }
.el-laser-guide h3 { margin: 0 0 13px; font-size: 21px; }
.el-laser-guide ul, .el-laser-guide ol { padding-left: 22px; margin: 12px 0 22px; }
.el-laser-guide li { margin-bottom: 9px; }
.el-laser-guide strong { color: var(--ink); }
.el-laser-guide figure { margin: 0; }
.el-laser-guide img { display: block; max-width: 100%; height: auto; }
.el-laser-guide .el-shell { max-width: 1260px; margin: 28px auto; background: #fff; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; }
.el-laser-guide .el-width { width: calc(100% - 112px); max-width: 1136px; margin: 0 auto; }
.el-laser-guide .el-brandline { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 25px 0; border-bottom: 1px solid var(--line); font-size: 11px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.el-laser-guide .el-brand { color: var(--ink); font-size: 16px; letter-spacing: .22em; }
.el-laser-guide .el-hero { background: linear-gradient(120deg, #fff 50%, #edf5fc); }
.el-laser-guide .el-hero-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 38px; align-items: center; padding: 55px 0 52px; }
.el-laser-guide .el-kicker { color: var(--blue); font-weight: 700; font-size: 11px; letter-spacing: .17em; text-transform: uppercase; margin: 0 0 18px; }
.el-laser-guide h1 { margin: 0 0 22px; font-size: clamp(36px, 4vw, 53px); font-weight: 750; }
.el-laser-guide h1 span { display: block; font-size: .61em; line-height: 1.37; margin-top: 15px; letter-spacing: -.02em; font-weight: 600; }
.el-laser-guide .el-lead { font-size: 18px; line-height: 1.7; max-width: 610px; }
.el-laser-guide .el-meta { font-size: 12px; color: #63738a; display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 23px; }
.el-laser-guide .el-hero-photo { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 15px; }
.el-laser-guide .el-hero-photo img { width: 100%; aspect-ratio: 1; object-fit: contain; border-radius: 10px; }
.el-laser-guide .el-hero-photo figcaption { font-size: 11px; color: #65758a; padding: 12px 6px 2px; line-height: 1.6; }
.el-laser-guide .el-body { padding-bottom: 32px; }
.el-laser-guide .el-answer { background: var(--pale); border-left: 4px solid var(--blue); border-radius: 0 12px 12px 0; padding: 30px 34px; margin: 36px 0 0; }
.el-laser-guide .el-answer h2 { font-size: 24px; margin-bottom: 13px; }
.el-laser-guide .el-answer p:last-child { margin-bottom: 0; }
.el-laser-guide .el-section { padding: 50px 0; border-bottom: 1px solid var(--line); }
.el-laser-guide .el-section-label { display: flex; align-items: center; gap: 12px; font-size: 11px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--blue); margin-bottom: 12px; }
.el-laser-guide .el-section-label::before { content: ""; width: 28px; height: 2px; background: var(--blue); }
.el-laser-guide .el-copy { max-width: 850px; }
.el-laser-guide .el-cite { font-size: 11px; white-space: nowrap; margin-left: 4px; vertical-align: super; }
.el-laser-guide .el-caption { color: #63758a; font-size: 13px; line-height: 1.65; margin-top: 14px; }
.el-laser-guide .el-table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; margin-top: 25px; }
.el-laser-guide table { border-collapse: collapse; min-width: 850px; width: 100%; font-size: 14px; line-height: 1.65; }
.el-laser-guide caption { text-align: left; padding: 16px 20px; background: #f6f9fc; font-weight: 650; color: var(--ink); }
.el-laser-guide th, .el-laser-guide td { padding: 18px 19px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.el-laser-guide thead th { background: var(--ink); color: #fff; font-size: 16px; font-weight: 650; }
.el-laser-guide thead th:first-child { width: 19%; }
.el-laser-guide tbody th { background: #f7f9fc; font-weight: 650; color: var(--ink); }
.el-laser-guide tbody tr:last-child th, .el-laser-guide tbody tr:last-child td { border-bottom: 0; }
.el-laser-guide .el-table-wave { display: block; font-size: 12px; color: #c2d8f1; margin-top: 4px; }
.el-laser-guide .el-three { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 28px; }
.el-laser-guide .el-tech { border-top: 3px solid var(--blue); background: #f6f9fd; border-radius: 0 0 12px 12px; padding: 25px; }
.el-laser-guide .el-tech:nth-child(2) { border-color: var(--teal); }
.el-laser-guide .el-tech:nth-child(3) { border-color: #606da0; }
.el-laser-guide .el-tech p { font-size: 15px; line-height: 1.75; }
.el-laser-guide .el-tech p:last-child { margin-bottom: 0; }
.el-laser-guide .el-wave { font-size: 11px; letter-spacing: .12em; font-weight: 700; color: var(--blue); margin-bottom: 11px; }
.el-laser-guide .el-note { padding: 24px 28px; border: 1px solid #c7e0e4; border-radius: 12px; background: #f2fafb; margin-top: 28px; }
.el-laser-guide .el-note p:last-child { margin-bottom: 0; }
.el-laser-guide .el-evidence { display: grid; grid-template-columns: 135px minmax(0, 1fr)); column-gap: 25px; padding: 24px 0; border-top: 1px solid var(--line); }
.el-laser-guide .el-evidence:first-of-type { margin-top: 24px; }
.el-laser-guide .el-evidence-year { color: var(--blue); font-size: 32px; line-height: 1.2; font-weight: 700; }
.el-laser-guide .el-evidence-year small { display: block; margin-top: 8px; font-size: 10px; letter-spacing: .08em; line-height: 1.5; text-transform: uppercase; }
.el-laser-guide .el-evidence p { margin-bottom: 0; font-size: 15px; }
.el-laser-guide .el-scenarios { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 25px; }
.el-laser-guide .el-scenario { border: 1px solid var(--line); border-radius: 12px; padding: 25px 27px; }
.el-laser-guide .el-scenario h3 { font-size: 19px; }
.el-laser-guide .el-scenario p { font-size: 15px; margin-bottom: 0; }
.el-laser-guide .el-number { font-size: 11px; font-weight: 700; letter-spacing: .12em; color: var(--blue); display: block; margin-bottom: 11px; }
.el-laser-guide .el-buy-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 34px; list-style: none; padding: 0; margin: 24px 0 0; counter-reset: buy; }
.el-laser-guide .el-buy-list li { counter-increment: buy; margin: 0; padding: 21px 0 21px 39px; border-top: 1px solid var(--line); position: relative; font-size: 15px; }
.el-laser-guide .el-buy-list li::before { content: counter(buy, decimal-leading-zero); position: absolute; left: 0; top: 23px; font-size: 11px; font-weight: 700; color: var(--blue); }
.el-laser-guide .el-buy-list strong { display: block; margin-bottom: 5px; font-size: 16px; }
.el-laser-guide .el-product { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 36px; align-items: center; background: var(--ink); color: #d6e2f0; padding: 38px; border-radius: 16px; margin-top: 30px; }
.el-laser-guide .el-product h3, .el-laser-guide .el-product strong { color: #fff; }
.el-laser-guide .el-product h3 { font-size: 27px; }
.el-laser-guide .el-product p { font-size: 15px; }
.el-laser-guide .el-product .el-kicker { color: #a9cbea; }
.el-laser-guide .el-product a:not(.el-button) { color: #b9dafe; }
.el-laser-guide .el-button { display: inline-flex; align-items: center; justify-content: center; gap: 18px; background: #fff; color: var(--ink); padding: 13px 21px; border-radius: 7px; font-size: 14px; font-weight: 700; text-decoration: none; margin-top: 5px; }
.el-laser-guide .el-button:hover { background: #e8f3fd; color: var(--ink); }
.el-laser-guide .el-product-photo { background: #fff; padding: 12px; border-radius: 10px; }
.el-laser-guide .el-product-photo img { width: 100%; aspect-ratio: 1; object-fit: contain; }
.el-laser-guide .el-product-photo figcaption { color: #5b6f85; font-size: 11px; padding: 12px 5px 4px; line-height: 1.6; }
.el-laser-guide details { border-top: 1px solid var(--line); }
.el-laser-guide details:last-child { border-bottom: 1px solid var(--line); }
.el-laser-guide summary { cursor: pointer; padding: 21px 38px 21px 0; list-style: none; font-size: 17px; font-weight: 650; line-height: 1.5; color: var(--ink); position: relative; }
.el-laser-guide summary::-webkit-details-marker { display: none; }
.el-laser-guide summary::after { content: "+"; position: absolute; right: 4px; top: 18px; font-weight: 400; font-size: 26px; color: var(--blue); }
.el-laser-guide details[open] summary::after { content: "−"; }
.el-laser-guide details p { max-width: 850px; font-size: 15px; padding-right: 22px; margin-bottom: 23px; }
.el-laser-guide .el-sources { list-style: none; padding: 0; margin: 22px 0 0; counter-reset: ref; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 35px; }
.el-laser-guide .el-sources li { counter-increment: ref; position: relative; padding-left: 27px; margin: 0; font-size: 12px; line-height: 1.7; overflow-wrap: anywhere; }
.el-laser-guide .el-sources li::before { content: counter(ref); position: absolute; left: 0; color: var(--blue); font-weight: 700; }
.el-laser-guide .el-sources span { display: block; margin-top: 4px; color: #6b7d91; }
.el-laser-guide .el-footer-note { font-size: 12px; color: #6b7b8f; padding: 25px 0 2px; max-width: 900px; }

@media (max-width: 1000px) {
  .el-laser-guide .el-shell { margin: 16px; }
  .el-laser-guide .el-width { width: calc(100% - 64px); }
  .el-laser-guide .el-hero-grid { gap: 24px; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); }
  .el-laser-guide .el-three { gap: 14px; }
  .el-laser-guide .el-tech { padding: 20px; }
}

@media (max-width: 760px) {
  .el-laser-guide { font-size: 16px; }
  .el-laser-guide .el-shell { margin: 0; border: 0; border-radius: 0; }
  .el-laser-guide .el-width { width: calc(100% - 40px); }
  .el-laser-guide .el-brandline { padding: 20px 0; gap: 10px; align-items: flex-start; }
  .el-laser-guide .el-brand { font-size: 14px; }
  .el-laser-guide .el-brandline > span:last-child { font-size: 9px; letter-spacing: .1em; max-width: 125px; text-align: right; }
  .el-laser-guide .el-hero-grid { grid-template-columns: 1fr; padding: 34px 0; gap: 28px; }
  .el-laser-guide h1 { font-size: 38px; }
  .el-laser-guide h1 span { font-size: 25px; }
  .el-laser-guide .el-lead { font-size: 16px; }
  .el-laser-guide .el-hero-photo { max-width: 380px; width: 100%; margin: 0 auto; }
  .el-laser-guide .el-answer { padding: 24px 22px; margin-top: 27px; }
  .el-laser-guide .el-answer h2 { font-size: 23px; }
  .el-laser-guide .el-section { padding: 36px 0; }
  .el-laser-guide h2 { font-size: 28px; }
  .el-laser-guide .el-three, .el-laser-guide .el-scenarios, .el-laser-guide .el-buy-list, .el-laser-guide .el-product, .el-laser-guide .el-sources { grid-template-columns: 1fr; }
  .el-laser-guide .el-tech { padding: 24px; }
  .el-laser-guide .el-note { padding: 23px; }
  .el-laser-guide .el-evidence { grid-template-columns: 1fr; gap: 15px; }
  .el-laser-guide .el-evidence-year { font-size: 26px; }
  .el-laser-guide .el-evidence-year small { display: inline; margin-left: 10px; font-size: 10px; }
  .el-laser-guide .el-product { padding: 26px; gap: 26px; }
  .el-laser-guide .el-product-photo { max-width: 370px; width: 100%; margin: auto; }
  .el-laser-guide summary { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media print {
  body { background: #fff; }
  .el-laser-guide .el-shell { margin: 0; border: 0; }
  .el-laser-guide .el-width { width: 100%; }
  .el-laser-guide .el-table-wrap { overflow: visible; }
  .el-laser-guide table { min-width: 0; font-size: 11px; }
  .el-laser-guide .el-section { padding: 24px 0; }
  .el-laser-guide details > p { display: block; }
  .el-laser-guide summary::after { display: none; }
}