@font-face {
  font-family: Amarna;
  font-style: normal;
  font-weight: 100 700;
  font-display: swap;
  src: url("media/fonts/Amarna-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: Amarna;
  font-style: normal;
  font-weight: 100 700;
  font-display: swap;
  src: url("media/fonts/Amarna-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
:root { --blue: #2b78b8; --blue-dark: #1e5c91; --ink: #25282d; --muted: #6b7077; --line: #d9dde2; --soft: #f7f8fa; --orange: #ee764f; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: Amarna, sans-serif; font-size: 16px; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.scene-card { min-width: 0; padding: 10px; border: 1px solid var(--line); border-radius: 12px; }
.scene-card h3 { margin: 14px 6px 8px; color: var(--blue-dark); font-size: 1rem; }
.scene-card ul { margin: 0 6px 10px; padding-left: 20px; color: var(--muted); font-size: .82rem; line-height: 1.6; }
.scene-card .scene-viewer { cursor: default; background: #eef3f6; }
.scene-card .scene-viewer img { display: block; width: 100%; height: 235px; object-fit: cover; }
.scene-launch { position: absolute; right: 12px; bottom: 11px; padding: 7px 12px; color: #fff; background: rgba(28,92,145,.9); border: 1px solid rgba(255,255,255,.65); border-radius: 999px; cursor: pointer; font-size: .72rem; font-weight: 700; }
.scene-launch:hover, .scene-launch:focus-visible { background: var(--blue-dark); outline: 2px solid #fff; outline-offset: 2px; }
.gaussian-modal[hidden] { display: none; }
.gaussian-modal { position: fixed; z-index: 100; inset: 0; display: grid; place-items: center; padding: 24px; background: rgba(7,18,28,.84); }
.gaussian-dialog { width: min(1120px, 96vw); overflow: hidden; background: #111a20; border: 1px solid rgba(255,255,255,.22); border-radius: 14px; box-shadow: 0 24px 80px rgba(0,0,0,.45); }
.gaussian-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 12px 16px; color: #fff; background: #17242e; }
.gaussian-toolbar div { display: grid; }.gaussian-toolbar small { color: #b8c8d3; font-size: .74rem; }
.gaussian-close { width: 36px; height: 36px; padding: 0; color: #fff; background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.25); border-radius: 50%; cursor: pointer; font-size: 1.5rem; line-height: 1; }
.gaussian-stage { position: relative; width: 100%; height: min(72vh, 720px); min-height: 420px; overflow: hidden; background: #eaf0f3; }
.gaussian-stage canvas { display: block; width: 100% !important; height: 100% !important; }
.gaussian-status { position: absolute; z-index: 2; left: 50%; top: 50%; margin: 0; padding: 8px 12px; color: #fff; background: rgba(15,31,42,.76); border-radius: 6px; transform: translate(-50%, -50%); }
body.modal-open { overflow: hidden; }
.gaussian-retry { position: absolute; z-index: 4; left: 50%; top: 65%; transform: translateX(-50%); padding: 8px 16px; border: 0; border-radius: 6px; background: #2878b8; color: white; cursor: pointer; }
.gaussian-status { pointer-events: none; max-width: 90%; text-align: center; }
.site-header { position: sticky; z-index: 10; top: 0; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(8px); }
.summary-video { display: block; width: 100%; aspect-ratio: 16 / 9; border: 1px solid #ccd5dc; border-radius: 12px; background: #111820; object-fit: contain; }
.header-inner { display: flex; align-items: center; justify-content: space-between; max-width: 1160px; min-height: 58px; margin: auto; padding: 0 24px; }
.site-brand { display: inline-flex; align-items: center; color: var(--ink); font-weight: 700; }.brand-logo { display: block; width: 132px; height: 36px; object-fit: contain; object-position: left center; }
.top-nav { display: flex; gap: 24px; color: var(--muted); font-size: .85rem; }.top-nav a:hover { color: var(--blue); }.menu-toggle { display: none; border: 1px solid var(--line); border-radius: 6px; padding: 5px 10px; color: var(--muted); background: #fff; }
.page-shell { max-width: 1160px; margin: auto; padding: 0 24px; }.paper-header { max-width: 1010px; margin: auto; padding: 66px 0 58px; text-align: center; }.venue-label { margin: 0 0 17px; color: var(--blue); font-size: .76rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }.paper-header h1 { max-width: 970px; margin: 0 auto 20px; color: #222; font-size: clamp(2rem, 3.5vw, 3rem); font-weight: 700; line-height: 1.1; letter-spacing: -.045em; }.paper-header h1 span { color: var(--blue); }.resource-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 23px; }.resource-pill { display: inline-flex; align-items: center; gap: 8px; padding: 9px 15px; color: #30343a; border: 1px solid #cfd4da; border-radius: 999px; background: #f6f7f8; font-size: .84rem; }.resource-pill span { color: var(--blue); font-weight: 700; }.resource-pill small { color: #92979d; font-size: .67rem; }.resource-pill:disabled { cursor: not-allowed; opacity: .82; }
.page-layout { display: grid; grid-template-columns: 260px minmax(0, 790px); gap: 56px; justify-content: center; align-items: start; }.main-column { min-width: 0; }.toc { position: sticky; top: 82px; width: 260px; padding: 26px 21px 24px; border: 1px solid #d1d8df; border-radius: 22px; background: #fff; box-shadow: 0 12px 30px rgba(34, 54, 70, .08); }.toc-title { margin: 0 0 18px; padding-bottom: 16px; border-bottom: 1px solid #bcc5cd; font-size: 2rem; font-weight: 400; line-height: 1.05; letter-spacing: -.03em; }.toc-link { display: block; padding: 8px 0 8px 16px; color: #0878dc; border-left: 3px solid transparent; font-size: .99rem; line-height: 1.42; }.toc-link:hover, .toc-link.active { color: #0878dc; border-left-color: #1387ed; }.toc-link.active { font-weight: 700; }.toc-subitem { padding-left: 17px; }.article { min-width: 0; }.content-section { scroll-margin-top: 86px; padding: 0 0 78px; }.content-section h2 { width: fit-content; margin: 0 auto 15px; padding: 0 10px 4px; border-bottom: 4px solid var(--blue); font-size: clamp(1.8rem, 3vw, 2.5rem); line-height: 1.17; text-align: center; }.content-section p { color: #43484e; font-size: .96rem; }.section-caption { margin: 0 auto 27px; color: var(--muted) !important; text-align: center; font-size: .88rem !important; }.summary-section { padding-bottom: 76px; }.video-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; min-height: 400px; border: 1px solid #ccd5dc; border-radius: 12px; background: #111820; color: #eef4f7; }.video-placeholder .play-button { display: grid; place-items: center; width: 58px; height: 58px; padding-left: 4px; border: 2px solid rgba(255,255,255,.72); border-radius: 50%; font-size: 1.35rem; }.video-placeholder span { font-size: .88rem; }.video-placeholder code { color: #9cb2be; font-size: .69rem; }
.paper-figure { margin: 28px 0 0; text-align: center; }.paper-figure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 10px; background: #fff; }.paper-figure figcaption { max-width: 760px; margin: 12px auto 0; color: var(--muted); font-size: .78rem; line-height: 1.5; text-align: center; }.paper-figure figcaption strong { color: #4b5965; }.paper-figure-bordered img { padding: 8px; }.compact-figure { max-width: 760px; margin-left: auto; margin-right: auto; }
.figure-heading { margin: 32px 0 0; color: #26313a; font-size: 1.08rem; font-weight: 700; text-align: center; }.figure-heading + .paper-figure { margin-top: 12px; }
.figure-placeholder { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 13px; min-height: 90px; margin-top: 25px; padding: 15px 17px; border: 1px dashed #a9bccb; border-radius: 10px; background: #fafcfd; }.figure-icon { display: grid; place-items: center; width: 34px; height: 34px; color: #fff; background: var(--blue); border-radius: 8px; }.figure-placeholder strong { display: block; font-size: .88rem; }.figure-placeholder span { display: block; color: var(--muted); font-size: .75rem; }.figure-placeholder code { color: #9ba3aa; font-size: .65rem; }
.phenomena-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }.phenomenon-card { padding: 10px; border: 1px solid var(--line); border-radius: 11px; background: #fff; }.phenomenon-visual { position: relative; height: 170px; overflow: hidden; border-radius: 7px; background: linear-gradient(145deg, #203646, #b4633e); }.vapor .phenomenon-visual { background: linear-gradient(145deg, #405b68, #aebec4); }.bubbles .phenomenon-visual { background: linear-gradient(145deg, #214a5e, #68a0ae); }.phenomenon-visual i { position: absolute; display: block; width: 16px; height: 16px; border-radius: 50%; background: rgba(255,229,160,.8); box-shadow: 0 0 22px rgba(255,229,160,.8); }.flame .phenomenon-visual i:nth-child(1) { left: 41%; top: 57%; width: 38px; height: 38px; background: #f3b04f; }.flame .phenomenon-visual i:nth-child(2) { left: 54%; top: 35%; background: #f27745; }.flame .phenomenon-visual i:nth-child(3) { left: 35%; top: 27%; width: 9px; height: 9px; }.flame .phenomenon-visual i:nth-child(4) { left: 63%; top: 53%; width: 11px; height: 11px; }.vapor .phenomenon-visual i { background: rgba(235,246,244,.55); box-shadow: 0 0 22px rgba(235,246,244,.4); }.vapor .phenomenon-visual i:nth-child(1) { left: 34%; top: 53%; width: 40px; height: 40px; }.vapor .phenomenon-visual i:nth-child(2) { left: 55%; top: 32%; width: 48px; height: 48px; }.vapor .phenomenon-visual i:nth-child(3) { left: 44%; top: 19%; }.vapor .phenomenon-visual i:nth-child(4) { left: 69%; top: 49%; width: 11px; height: 11px; }.bubbles .phenomenon-visual i { background: transparent; border: 1px solid rgba(218,246,255,.82); box-shadow: inset 0 0 8px rgba(218,246,255,.25); }.bubbles .phenomenon-visual i:nth-child(1) { left: 35%; top: 55%; width: 33px; height: 33px; }.bubbles .phenomenon-visual i:nth-child(2) { left: 57%; top: 32%; width: 17px; height: 17px; }.bubbles .phenomenon-visual i:nth-child(3) { left: 68%; top: 50%; width: 10px; height: 10px; }.bubbles .phenomenon-visual i:nth-child(4) { left: 47%; top: 17%; width: 12px; height: 12px; }.phenomenon-card h3 { margin: 13px 3px 3px; font-size: 1rem; }.phenomenon-card p { margin: 0 3px 9px; color: var(--muted); font-size: .78rem; }.phenomenon-card > span { margin: 0 3px 3px; color: var(--blue); font-size: .66rem; text-transform: uppercase; letter-spacing: .06em; }
.phenomena-videos { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 24px; }
.phenomena-video-card { overflow: hidden; border: 1px solid var(--line); border-radius: 11px; background: #f8fafb; }
.phenomena-video-card h3 { width: fit-content; margin: 0 auto; padding: 8px 10px; color: var(--blue-dark); font-size: .85rem; text-align: center; }
.phenomena-video-card video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: #fff; }
.media-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; }.media-card { display: grid; grid-template-columns: 43px 1fr; grid-template-rows: auto auto; align-items: start; min-height: 146px; padding: 17px; overflow: hidden; border: 1px solid var(--line); border-radius: 10px; background: #f8fafb; }.media-card > span { grid-column: 1; grid-row: 1; color: var(--blue); font: 700 1.45rem Amarna, sans-serif; }.media-card strong { grid-column: 2; grid-row: 1; align-self: center; font-size: .88rem; }.media-card video { grid-column: 1 / -1; grid-row: 2; display: block; width: 100%; aspect-ratio: 16 / 9; margin-top: 13px; border-radius: 7px; background: #0c1318; object-fit: cover; }
.carousel { position: relative; display: flex; align-items: center; gap: 9px; }.carousel-viewport { min-width: 0; overflow: hidden; flex: 1; }.carousel-track { display: flex !important; gap: 13px; transition: transform .3s ease; }.carousel-track > * { flex: 0 0 calc((100% - 26px) / 3); }.carousel-arrow { z-index: 2; display: grid; place-items: center; width: 34px; height: 34px; flex: 0 0 34px; color: var(--blue-dark); border: 1px solid #c7d5df; border-radius: 50%; background: #fff; box-shadow: 0 3px 10px rgba(34,54,70,.12); cursor: pointer; font-size: 1.7rem; line-height: 1; }.carousel-arrow:hover { color: #fff; background: var(--blue); }.scene-viewer { position: relative; min-height: 0; overflow: hidden; border: 1px solid #b8cbd7; border-radius: 10px; background: #111820; }.scene-viewer video { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }.scene-viewer span { position: absolute; left: 12px; bottom: 45px; padding: 4px 7px; color: #fff; background: rgba(18,35,43,.65); border-radius: 5px; font-size: .7rem; }
.site-footer { display: flex; justify-content: space-between; gap: 15px; padding: 25px 0 60px; color: var(--muted); border-top: 1px solid var(--line); font-size: .75rem; }.site-footer a { color: var(--blue); }
.gaussian-comparison { margin: 30px 0; padding: 25px; border: 1px solid var(--line); border-radius: 14px; background: #f8fafb; }.comparison-heading { max-width: 620px; margin: 0 auto 22px; text-align: center; }.comparison-heading > span { color: var(--blue); font-size: .7rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }.comparison-heading h3 { margin: 7px 0 6px; color: var(--text); font-size: 1.35rem; }.comparison-heading p { margin: 0; color: var(--muted); font-size: .82rem; }.comparison-videos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }.comparison-card { overflow: hidden; border: 1px solid var(--line); border-radius: 10px; background: #fff; }.comparison-card h4 { margin: 0; padding: 12px 14px; color: var(--blue-dark); border-bottom: 1px solid var(--line); font-size: .86rem; text-align: center; }.comparison-card video { display: block; width: 100%; aspect-ratio: 16 / 9; background: #111820; object-fit: contain; }.comparison-result { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 22px; max-width: 500px; margin: 20px auto 0; text-align: center; }.comparison-result strong { display: block; color: var(--blue); font: 700 2rem/1 Amarna, sans-serif; }.comparison-result span { display: block; margin-top: 6px; color: var(--muted); font-size: .7rem; }.comparison-versus { color: #929ba3; font-size: .78rem; font-weight: 700; }
.content-section#real-world-validation .gaussian-comparison { width: 100%; box-sizing: border-box; margin-top: 22px; margin-bottom: 22px; }
@media (max-width: 900px) { .page-layout { grid-template-columns: 1fr; gap: 0; }.toc { position: sticky; top: 58px; z-index: 5; display: flex; width: auto; gap: 16px; overflow-x: auto; padding: 10px 13px; border-radius: 0; }.toc-title { display: none; }.toc-link { flex: 0 0 auto; padding: 4px 0; border-left: 0; border-bottom: 2px solid transparent; white-space: nowrap; }.toc-link.active { border-bottom-color: var(--blue); }.article { padding-top: 44px; } }
@media (max-width: 640px) { .header-inner, .page-shell { padding-left: 16px; padding-right: 16px; }.top-nav { display: none; position: absolute; top: 58px; left: 16px; right: 16px; flex-direction: column; gap: 0; padding: 7px 13px; border: 1px solid var(--line); border-radius: 8px; background: #fff; box-shadow: 0 8px 25px rgba(0,0,0,.08); }.top-nav.open { display: flex; }.top-nav a { padding: 7px 0; }.menu-toggle { display: block; }.paper-header { padding-top: 45px; }.paper-header h1 { font-size: 2rem; }.phenomena-grid, .phenomena-videos, .media-grid, .scene-grid, .comparison-videos { grid-template-columns: 1fr; }.carousel-track > * { flex-basis: 100%; }.carousel-arrow { width: 30px; height: 30px; flex-basis: 30px; }.video-placeholder { min-height: 240px; }.figure-placeholder { grid-template-columns: auto 1fr; }.figure-placeholder code { grid-column: 2; }.gaussian-comparison { padding: 18px; }.comparison-video-placeholder { min-height: 170px; }.site-footer { flex-direction: column; } }
.comparison-card h4 { display: flex; align-items: center; justify-content: center; min-height: 74px; }
.media-card > p { grid-column: 1 / -1; grid-row: 2; margin: 7px 0 0; color: var(--muted); font-size: .76rem; line-height: 1.4; }
.media-card > video { grid-row: 3; }