@font-face {
  font-family: "Inter Display";
  src: url("assets/fonts/inter-display.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Inter Display";
  src: url("assets/fonts/satoshi-variable.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "Space Grotesk";
  src: url("assets/fonts/space-grotesk-400.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Space Grotesk";
  src: url("assets/fonts/space-grotesk-600.ttf") format("truetype");
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Space Grotesk";
  src: url("assets/fonts/space-grotesk-700.ttf") format("truetype");
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/fonts/ibm-plex-mono-400.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/fonts/ibm-plex-mono-600.ttf") format("truetype");
  font-weight: 600;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #030405;
  --bg-deep: #000;
  --surface: #090b0c;
  --surface-2: #0f1214;
  --surface-3: #15191b;
  --line: rgba(205, 216, 224, 0.1);
  --line-strong: rgba(205, 216, 224, 0.2);
  --text: #f5f7f8;
  --text-soft: rgba(235, 240, 242, 0.78);
  --text-muted: rgba(219, 226, 230, 0.54);
  --text-faint: rgba(219, 226, 230, 0.34);
  --platinum: #d8e0e4;
  --gold: #a89a79;
  --gold-bright: #d0c09a;
  --stable: #b8c7c7;
  --stable-soft: #91a9a3;
  --btc: #c4a363;
  --risk-low: #97b2a6;
  --risk-medium: #b3aa91;
  --risk-high: #bd9c91;
  --max: 1280px;
  --header: 76px;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --font-display: "Space Grotesk", "PingFang SC", "Hiragino Sans GB", "Yu Gothic UI", sans-serif;
  --font-body: "Inter Display", "PingFang SC", "Hiragino Sans GB", "Yu Gothic UI", sans-serif;
  --font-data: "IBM Plex Mono", "PingFang SC", "Yu Gothic UI", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header) + 24px);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    linear-gradient(180deg, rgba(170, 188, 198, 0.018), transparent 18%, transparent 78%, rgba(169, 156, 126, 0.018)),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.55;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

button,
a {
  font: inherit;
}

button {
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

img,
svg {
  display: block;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 4px;
}

::selection {
  background: rgba(207, 193, 159, 0.28);
  color: #fff;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.section-shell {
  width: min(calc(100% - 64px), var(--max));
  margin: 0 auto;
}

.section-pad {
  padding: 152px 0;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--gold-bright);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.section-intro {
  max-width: 1080px;
  margin-bottom: 76px;
}

.section-intro h2 {
  margin: 0;
  max-width: 1040px;
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 600;
  line-height: 1.01;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-intro > p:last-child {
  max-width: 680px;
  margin: 28px 0 0;
  color: var(--text-muted);
  font-size: 17px;
  text-wrap: pretty;
}

.metal-title {
  background: linear-gradient(104deg, #f9f8f2 0%, #d3c6a5 38%, #eef3f4 54%, #a99c7e 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto minmax(220px, 1fr);
  align-items: center;
  height: var(--header);
  padding: 0 32px;
  border-bottom: 1px solid rgba(205, 216, 224, 0.09);
  background: linear-gradient(180deg, rgba(4, 5, 6, 0.92), rgba(4, 5, 6, 0.76));
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(22px) saturate(108%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  width: max-content;
}

.brand img {
  width: 114px;
  height: 24px;
}

.brand span {
  padding-left: 14px;
  border-left: 1px solid var(--line-strong);
  color: var(--text-soft);
  font-size: 14px;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.desktop-nav a {
  position: relative;
  color: var(--text-muted);
  font-size: 13px;
  transition: color 180ms var(--ease);
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 1px;
  background: var(--gold-bright);
  content: "";
  opacity: 0;
  transform: scaleX(0.4);
  transition: opacity 180ms var(--ease), transform 180ms var(--ease);
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible {
  color: var(--text);
}

.desktop-nav a:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 3px;
  font-size: 14px;
  font-weight: 650;
  transition: background 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease), transform 180ms var(--ease);
}

.header-cta,
.button-primary {
  background: #f2f2ef;
  color: #090a0b;
}

.header-cta:hover,
.button-primary:hover {
  background: #fff;
  transform: translateY(-1px);
}

.button-ghost {
  border-color: var(--line-strong);
  background: rgba(7, 9, 10, 0.48);
  color: var(--text-soft);
}

.button-ghost:hover {
  border-color: rgba(207, 193, 159, 0.5);
  color: var(--text);
}

.button svg {
  width: 17px;
  height: 17px;
  margin-left: 10px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(9, 10, 11, 0.72);
  cursor: pointer;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.icon-button:hover {
  border-color: var(--line-strong);
  background: var(--surface-2);
}

.language-menu {
  position: relative;
}

.language-trigger {
  display: flex;
  width: auto;
  min-width: 72px;
  padding: 0 11px;
  gap: 8px;
}

.language-trigger svg,
.menu-toggle svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
}

.language-trigger span {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
}

.language-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  display: grid;
  min-width: 156px;
  padding: 6px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: rgba(11, 13, 14, 0.98);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.46);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 160ms var(--ease), transform 160ms var(--ease);
}

.language-menu.is-open .language-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.language-dropdown button {
  padding: 10px 12px;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  text-align: left;
  cursor: pointer;
}

.language-dropdown button:hover,
.language-dropdown button[aria-pressed="true"] {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.menu-toggle,
.mobile-menu,
.mobile-backdrop {
  display: none;
}

.hero {
  position: relative;
  display: flex;
  min-height: min(860px, calc(100svh - 12px));
  padding-top: var(--header);
  overflow: hidden;
  isolation: isolate;
}

.hero-media,
.hero-vignette {
  position: absolute;
  inset: 0;
}

.hero-media {
  z-index: -3;
  background: url("assets/images/strategy-dual-hero.jpg") center 54% / cover no-repeat;
  filter: saturate(0.72) contrast(1.06) brightness(0.92);
  transform: scale(1.02);
  animation: hero-settle 1200ms var(--ease) both;
}

.hero-vignette {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.96) 0%, rgba(0, 0, 0, 0.78) 34%, rgba(0, 0, 0, 0.18) 72%, rgba(0, 0, 0, 0.58) 100%),
    linear-gradient(0deg, #030405 0%, transparent 32%, rgba(0, 0, 0, 0.34) 100%);
}

.hero-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: min(calc(100% - 64px), var(--max));
  min-height: 100%;
  margin: 0 auto;
  padding: 104px 0 46px;
}

.hero-copy {
  width: min(820px, 70%);
  margin: auto 0;
}

.hero-copy h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 88px;
  font-weight: 600;
  line-height: 0.96;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero-copy h1 span {
  display: block;
}

.hero-lede {
  max-width: 620px;
  margin: 30px 0 0;
  color: var(--text-soft);
  font-size: 19px;
  line-height: 1.6;
  text-wrap: pretty;
}

.hero-actions,
.closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-routes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  width: min(820px, 70%);
  margin-top: auto;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(13, 16, 17, 0.34), rgba(13, 16, 17, 0.05));
}

.hero-route {
  display: grid;
  gap: 3px;
  padding: 24px 28px 20px 0;
}

.hero-route + .hero-route {
  padding-left: 28px;
  border-left: 1px solid var(--line-strong);
}

.hero-route > span,
.hero-route small {
  color: var(--text-muted);
  font-size: 13px;
}

.hero-route strong {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 560;
}

.hero-route-stable strong {
  color: var(--stable);
}

.hero-route-btc strong {
  color: var(--gold-bright);
}

.portfolio-jobs {
  position: relative;
  border-bottom: 1px solid var(--line);
  background: #050708;
}

.portfolio-jobs::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(207, 193, 159, 0.3), transparent);
  content: "";
}

.job-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: auto auto auto minmax(0, 1fr) auto;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.job-column {
  position: relative;
  display: grid;
  grid-row: 1 / span 5;
  grid-template-rows: subgrid;
  isolation: isolate;
  overflow: hidden;
  min-height: 420px;
  padding: 58px 60px 54px 0;
}

.job-column:first-child {
  grid-column: 1;
}

.job-column:last-child {
  grid-column: 2;
}

.job-column + .job-column {
  padding-right: 0;
  padding-left: 60px;
  border-left: 1px solid var(--line-strong);
}

.job-index {
  display: block;
  margin-bottom: 82px;
  color: var(--text-faint);
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
}

.job-kicker {
  margin: 0 0 14px;
  color: var(--text-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}

.job-column h3 {
  max-width: 520px;
  margin: 0;
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 600;
  line-height: 1.08;
  text-wrap: balance;
}

.job-column > p:not(.job-kicker) {
  max-width: 560px;
  margin: 22px 0 0;
  color: var(--text-muted);
  font-size: 17px;
  text-wrap: pretty;
}

.job-column::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  background-position: center;
  background-size: cover;
  content: "";
  filter: saturate(0.55) contrast(1.08);
  opacity: 0.11;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(90deg, transparent 8%, #000 72%);
  mask-image: linear-gradient(90deg, transparent 8%, #000 72%);
}

.stable-tone::after {
  background-image: url("assets/images/stablecoin-rail.webp");
}

.btc-tone::after {
  background-image: url("assets/images/btc-rail.webp");
  transform: scaleX(-1);
}

.job-column > a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 34px;
  color: var(--text-soft);
  font-size: 14px;
}

.job-column > a svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  transition: transform 180ms var(--ease);
}

.job-column > a:hover svg {
  transform: translateX(4px);
}

.stable-tone h3 {
  color: var(--stable);
}

.btc-tone h3 {
  color: var(--gold-bright);
}

.workbench-section {
  background:
    linear-gradient(180deg, rgba(170, 189, 192, 0.035), transparent 30%, transparent 74%, rgba(169, 156, 126, 0.025)),
    var(--bg);
}

.mode-switch {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(190px, 1fr));
  margin-bottom: 20px;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: rgba(7, 8, 9, 0.84);
}

.mode-switch button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 54px;
  padding: 0 18px;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}

.mode-switch button + button {
  border-left: 1px solid var(--line);
}

.mode-switch button.is-active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.mode-switch small {
  font-family: "IBM Plex Mono", monospace;
  color: var(--text-faint);
}

.workbench {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: #07090a;
  box-shadow: 0 40px 110px rgba(0, 0, 0, 0.34), inset 0 1px rgba(255, 255, 255, 0.025);
}

.workbench-visual {
  position: relative;
  height: 430px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-strong);
  background: #050607;
}

.workbench-visual::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(5, 6, 7, 0.88) 0%, transparent 42%), linear-gradient(90deg, rgba(0, 0, 0, 0.16), transparent 35%);
  content: "";
  pointer-events: none;
}

.workbench-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.72) contrast(1.05) brightness(0.92);
  transition: opacity 200ms var(--ease), transform 700ms var(--ease);
}

.workbench.is-switching .workbench-visual img,
.workbench.is-switching .strategy-spotlight {
  opacity: 0.3;
}

.workbench:hover .workbench-visual img {
  transform: scale(1.015);
}

.visual-caption {
  position: absolute;
  z-index: 1;
  right: 28px;
  bottom: 24px;
  left: 28px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}

.visual-caption span {
  color: var(--text-soft);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  text-transform: uppercase;
}

.visual-caption strong {
  color: var(--stable);
  font-family: var(--font-display);
  font-size: 46px;
  font-weight: 600;
}

.btc-mode .visual-caption strong {
  color: var(--gold-bright);
}

.workbench-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.75fr);
}

.vip-access {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 34px;
  align-items: start;
  padding: 24px 30px 28px;
  border-top: 1px solid var(--line-strong);
  background: linear-gradient(90deg, rgba(201, 183, 139, 0.075), rgba(255, 255, 255, 0.012) 52%, transparent);
}

.vip-access span {
  color: var(--gold-bright);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  line-height: 1.6;
}

.vip-access p {
  max-width: 940px;
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.7;
}

.strategy-spotlight {
  min-width: 0;
  padding: 54px 58px 58px;
  border-right: 1px solid var(--line-strong);
  transition: opacity 180ms var(--ease);
}

.strategy-spotlight.is-updating {
  opacity: 0.25;
}

.spotlight-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.strategy-code {
  display: block;
  color: var(--text);
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
  font-weight: 600;
}

.strategy-code-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.featured-mark,
.featured-tag {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 3px 7px;
  border: 1px solid rgba(216, 194, 137, 0.42);
  border-radius: 2px;
  background: linear-gradient(110deg, rgba(216, 194, 137, 0.16), rgba(216, 194, 137, 0.035));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.07);
  color: var(--gold-bright);
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;
}

.featured-mark[hidden] {
  display: none;
}

.strategy-spotlight.is-featured {
  background: linear-gradient(135deg, rgba(216, 194, 137, 0.06), transparent 42%);
  box-shadow: inset 2px 0 rgba(216, 194, 137, 0.7);
}

.spotlight-head p {
  margin: 8px 0 0;
  color: var(--text-muted);
  font-size: 14px;
}

.risk-label {
  flex: none;
  padding: 7px 10px;
  border: 1px solid currentColor;
  border-radius: 3px;
  color: var(--risk-low);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
}

.risk-label.risk-medium-low {
  color: #9caab1;
}

.risk-label.risk-medium {
  color: var(--risk-medium);
}

.risk-label.risk-high {
  color: var(--risk-high);
}

.strategy-spotlight h3 {
  max-width: 720px;
  margin: 56px 0 0;
  font-family: var(--font-display);
  font-size: 50px;
  font-weight: 600;
  line-height: 1.06;
  text-wrap: balance;
}

.strategy-summary {
  max-width: 740px;
  margin: 22px 0 0;
  color: var(--text-soft);
  font-size: 18px;
  text-wrap: pretty;
}

.return-source {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 24px;
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.return-source > span {
  color: var(--text-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  text-transform: uppercase;
}

.return-source p {
  margin: 0;
  color: var(--text-soft);
}

.strategy-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 44px 0 0;
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line-strong);
}

.strategy-metrics > div {
  min-width: 0;
  padding: 22px;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.strategy-metrics dt,
.best-fit > span {
  color: var(--text-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  text-transform: uppercase;
}

.strategy-metrics dd {
  margin: 8px 0 0;
  overflow-wrap: anywhere;
  color: var(--text);
  font-size: 16px;
}

.strategy-metrics > div:first-child dd {
  color: var(--gold-bright);
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 560;
}

.best-fit {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 24px;
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.best-fit p {
  margin: 0;
  color: var(--text-soft);
}

.mechanism-mini {
  margin-top: 32px;
}

.mechanism-mini > span {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--line);
}

.mechanism-mini b {
  display: grid;
  place-items: center;
  min-height: 64px;
  padding: 8px;
  background: var(--surface);
  color: var(--text-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  font-weight: 400;
  text-align: center;
}

.mechanism-mini b.is-active {
  color: var(--text);
  animation: mechanism-light 700ms var(--ease) both;
}

.strategy-note {
  margin: 24px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 13px;
}

.strategy-selector {
  min-width: 0;
  background: rgba(255, 255, 255, 0.018);
}

.selector-head {
  display: flex;
  justify-content: space-between;
  padding: 22px 24px;
  border-bottom: 1px solid var(--line-strong);
  color: var(--text-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  text-transform: uppercase;
}

.strategy-options {
  display: grid;
}

.strategy-option {
  position: relative;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  width: 100%;
  min-height: 100px;
  padding: 16px 22px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--text-muted);
  text-align: left;
  cursor: pointer;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}

.strategy-option::before {
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 0;
  width: 2px;
  background: var(--stable);
  content: "";
  opacity: 0;
  transform: scaleY(0.4);
  transition: opacity 180ms var(--ease), transform 180ms var(--ease);
}

.btc-mode .strategy-option::before {
  background: var(--gold-bright);
}

.strategy-option:hover,
.strategy-option.is-active {
  background: rgba(255, 255, 255, 0.045);
  color: var(--text);
}

.strategy-option.is-active::before {
  opacity: 1;
  transform: scaleY(1);
}

.option-code {
  color: inherit;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  font-weight: 600;
}

.option-copy {
  min-width: 0;
}

.option-copy strong,
.option-copy span {
  display: block;
  overflow-wrap: anywhere;
}

.option-copy .option-status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.option-status .featured-tag {
  min-height: 19px;
  margin: 0;
  padding: 3px 6px;
  font-size: 8px;
}

.strategy-option.is-featured {
  background: linear-gradient(90deg, rgba(216, 194, 137, 0.065), transparent 72%);
}

.strategy-option.is-featured::before {
  background: var(--gold-bright);
  opacity: 0.8;
  transform: scaleY(1);
}

.strategy-option.is-featured .option-yield {
  color: var(--gold-bright);
}

.option-copy strong {
  color: var(--text-soft);
  font-size: 14px;
  font-weight: 520;
}

.option-copy span {
  margin-top: 4px;
  color: var(--text-faint);
  font-size: 12px;
}

.option-yield {
  color: var(--stable);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 560;
  white-space: nowrap;
}

.btc-mode .option-yield {
  color: var(--gold-bright);
}

.mobile-strategy-detail {
  display: none;
}

.comparison-section {
  border-top: 1px solid var(--line);
  background: #070809;
}

.comparison-toolbar {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}

.comparison-toolbar button {
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 180ms var(--ease), background 180ms var(--ease), color 180ms var(--ease);
}

.comparison-toolbar button:hover,
.comparison-toolbar button.is-active {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.comparison-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: #07090a;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.22);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.comparison-table th,
.comparison-table td {
  padding: 20px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  overflow-wrap: anywhere;
  text-align: left;
}

.comparison-table th:last-child,
.comparison-table td:last-child {
  border-right: 0;
}

.comparison-table th {
  position: sticky;
  z-index: 2;
  top: 0;
  background: rgba(14, 17, 19, 0.98);
  color: var(--text-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  font-weight: 400;
  text-transform: uppercase;
}

.comparison-table th:nth-child(1) { width: 10%; }
.comparison-table th:nth-child(2) { width: 15%; }
.comparison-table th:nth-child(3) { width: 24%; }
.comparison-table th:nth-child(4) { width: 12%; }
.comparison-table th:nth-child(5) { width: 11%; }
.comparison-table th:nth-child(6) { width: 12%; }
.comparison-table th:nth-child(7) { width: 16%; }

.comparison-table td {
  color: var(--text-muted);
  font-size: 13px;
}

.comparison-table tbody tr {
  cursor: pointer;
  transition: background 180ms var(--ease);
}

.comparison-table tbody tr:hover,
.comparison-table tbody tr.is-selected {
  background: rgba(190, 205, 211, 0.045);
}

.comparison-table tbody tr.is-featured {
  background: linear-gradient(90deg, rgba(216, 194, 137, 0.06), rgba(216, 194, 137, 0.015) 62%, transparent);
}

.table-strategy strong,
.table-strategy span {
  display: block;
}

.table-strategy strong {
  color: var(--text);
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
}

.table-strategy span {
  margin-top: 8px;
  color: var(--text-faint);
  font-size: 11px;
  text-transform: uppercase;
}

.table-strategy .featured-tag {
  display: inline-flex;
  margin-top: 10px;
  font-size: 8px;
}

.table-yield {
  color: var(--gold-bright) !important;
  font-family: var(--font-display);
  font-size: 18px !important;
  font-weight: 560;
}

.comparison-cards {
  display: none;
}

.returns-section {
  background: #030506;
}

.return-architecture {
  overflow: hidden;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: linear-gradient(180deg, #080a0b, #050708);
}

.return-mode-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-bottom: 1px solid var(--line-strong);
}

.return-mode-switch button {
  position: relative;
  display: grid;
  gap: 8px;
  min-height: 122px;
  padding: 28px 34px;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  text-align: left;
  cursor: pointer;
  transition: background 190ms var(--ease), color 190ms var(--ease);
}

.return-mode-switch button + button {
  border-left: 1px solid var(--line-strong);
}

.return-mode-switch button::after {
  position: absolute;
  right: 34px;
  bottom: -1px;
  left: 34px;
  height: 1px;
  background: currentColor;
  content: "";
  opacity: 0;
  transform: scaleX(0.3);
  transition: opacity 190ms var(--ease), transform 190ms var(--ease);
}

.return-mode-switch button:hover,
.return-mode-switch button.is-active {
  background: rgba(255, 255, 255, 0.025);
  color: var(--text);
}

.return-mode-switch button.is-active::after {
  opacity: 0.8;
  transform: scaleX(1);
}

.return-mode-switch [data-return-mode="stablecoin"].is-active {
  color: var(--stable);
}

.return-mode-switch [data-return-mode="btc"].is-active {
  color: var(--gold-bright);
}

.return-mode-switch span {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
}

.return-mode-switch small {
  color: var(--text-muted);
  font-family: var(--font-data);
  font-size: 11px;
}

.return-engine {
  opacity: 1;
  transform: none;
  transition: opacity 190ms var(--ease), transform 190ms var(--ease);
}

.return-engine[hidden] {
  display: none;
}

.return-architecture.is-switching .return-engine {
  opacity: 0;
  transform: translateY(8px);
}

.engine-thesis {
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr);
  border-bottom: 1px solid var(--line-strong);
}

.engine-thesis > div {
  min-width: 0;
  padding: 52px 46px;
}

.engine-thesis > div + div {
  border-left: 1px solid var(--line-strong);
}

.engine-thesis span,
.engine-facts span,
.engine-stages small {
  display: block;
  color: var(--text-faint);
  font-family: var(--font-data);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
}

.engine-thesis strong {
  display: block;
  max-width: 780px;
  margin-top: 16px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 600;
  line-height: 1.08;
}

.return-architecture:not(.is-btc) .engine-thesis > div:first-child strong,
.return-architecture:not(.is-btc) .engine-index,
.return-architecture:not(.is-btc) .engine-facts strong {
  color: var(--stable);
}

.return-architecture.is-btc .engine-thesis > div:first-child strong,
.return-architecture.is-btc .engine-index,
.return-architecture.is-btc .engine-facts strong {
  color: var(--gold-bright);
}

.engine-stages {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.engine-stages li {
  min-width: 0;
  min-height: 304px;
  padding: 38px 32px 42px;
}

.engine-stages li + li {
  border-left: 1px solid var(--line);
}

.engine-index {
  display: block;
  margin-bottom: 58px;
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 400;
  line-height: 1;
  opacity: 0.62;
}

.engine-stages small {
  color: var(--text-muted);
}

.engine-stages p {
  margin: 16px 0 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.6;
}

.engine-codes {
  display: block;
  margin-top: 22px;
  color: var(--text-faint);
  font-family: var(--font-data);
  font-size: 10px;
}

.engine-facts {
  display: grid;
  grid-template-columns: 1.4fr 0.7fr 0.9fr;
  border-top: 1px solid var(--line-strong);
  background: rgba(0, 0, 0, 0.2);
}

.engine-facts > div {
  min-width: 0;
  padding: 28px 32px 32px;
}

.engine-facts > div + div {
  border-left: 1px solid var(--line);
}

.engine-facts strong {
  display: block;
  margin-top: 11px;
  overflow-wrap: anywhere;
  font-size: 15px;
  font-weight: 500;
}

.risk-section {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, #07090a, #050708);
}

.risk-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.risk-column {
  padding: 56px 56px 60px 0;
}

.risk-column + .risk-column {
  padding-right: 0;
  padding-left: 56px;
  border-left: 1px solid var(--line-strong);
}

.risk-heading {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 52px;
}

.risk-heading svg {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: var(--gold-bright);
  stroke-width: 1.25;
}

.risk-heading span {
  color: var(--text-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  text-transform: uppercase;
}

.risk-heading h3 {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 560;
}

.risk-column ol {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.risk-column li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  min-height: 66px;
  border-bottom: 1px solid var(--line);
}

.risk-column li span {
  color: var(--text-faint);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
}

.risk-column li strong {
  color: var(--text-soft);
  font-size: 15px;
  font-weight: 500;
}

.closing-section {
  position: relative;
  min-height: 660px;
  overflow: hidden;
  background: #020303;
  isolation: isolate;
}

.closing-bg {
  position: absolute;
  z-index: -2;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.96) 0%, rgba(0, 0, 0, 0.7) 52%, rgba(0, 0, 0, 0.2) 100%),
    url("assets/images/strategy-dual-hero.jpg") center / cover no-repeat;
  filter: saturate(0.66) contrast(1.05);
  opacity: 0.68;
}

.closing-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 660px;
}

.closing-inner h2 {
  max-width: 780px;
  margin: 0;
  font-family: var(--font-display);
  font-size: 68px;
  font-weight: 620;
  line-height: 1.02;
  text-wrap: balance;
}

.closing-inner > p:not(.eyebrow) {
  max-width: 580px;
  margin: 24px 0 0;
  color: var(--text-soft);
  font-size: 18px;
}

.disclosure {
  padding: 42px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #050607;
}

.disclosure .section-shell {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 40px;
}

.disclosure strong {
  color: var(--text-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  text-transform: uppercase;
}

.disclosure p {
  max-width: 1000px;
  margin: 0;
  color: var(--text-faint);
  font-size: 12px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 104px;
  padding: 0 max(32px, calc((100% - var(--max)) / 2));
  background: #020303;
  color: var(--text-faint);
  font-size: 12px;
}

.site-footer .brand img {
  opacity: 0.82;
}

.hero-copy h1,
.hero-route strong,
.job-column h3,
.section-intro h2,
.strategy-spotlight h3,
.strategy-metrics > div:first-child dd,
.option-yield,
.table-yield,
.return-mode-switch span,
.engine-thesis strong,
.risk-heading h3,
.closing-inner h2 {
  font-family: var(--font-display);
  font-feature-settings: "ss01" 1, "ss02" 1, "tnum" 1;
  letter-spacing: 0;
}

.hero-copy h1,
.strategy-spotlight h3,
.closing-inner h2 {
  font-weight: 600;
}

.hero-route strong,
.strategy-metrics dd,
.option-yield,
.table-yield,
.engine-index {
  font-variant-numeric: tabular-nums;
}

html[lang="zh-CN"] .hero-copy h1,
html[lang="zh-CN"] .section-intro h2,
html[lang="zh-CN"] .closing-inner h2 {
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-weight: 600;
  line-height: 1.12;
}

html[lang="ja"] .hero-copy h1,
html[lang="ja"] .section-intro h2,
html[lang="ja"] .closing-inner h2 {
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif CJK JP", serif;
  font-weight: 600;
  line-height: 1.14;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes hero-settle {
  from { opacity: 0; transform: scale(1.05); }
  to { opacity: 1; transform: scale(1.02); }
}

@keyframes mechanism-light {
  from { background: var(--surface); color: var(--text-faint); }
  to { background: rgba(207, 193, 159, 0.08); color: var(--text); }
}

@media (max-width: 1120px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .desktop-nav {
    display: none;
  }

  .menu-toggle {
    display: inline-grid;
  }

  .menu-toggle .close-icon {
    display: none;
  }

  body.menu-open .menu-toggle .menu-icon {
    display: none;
  }

  body.menu-open .menu-toggle .close-icon {
    display: block;
  }

  .mobile-backdrop {
    position: fixed;
    z-index: 89;
    inset: var(--header) 0 0;
    display: block;
    background: rgba(0, 0, 0, 0.58);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms var(--ease);
  }

  .mobile-menu {
    position: fixed;
    z-index: 90;
    top: var(--header);
    right: 0;
    display: flex;
    flex-direction: column;
    width: min(400px, 92vw);
    height: calc(100svh - var(--header));
    padding: 28px;
    border-left: 1px solid var(--line-strong);
    background: rgba(8, 9, 10, 0.98);
    transform: translateX(102%);
    transition: transform 220ms var(--ease);
  }

  .mobile-menu nav {
    display: grid;
  }

  .mobile-menu nav a {
    padding: 17px 0;
    border-bottom: 1px solid var(--line);
    color: var(--text-soft);
  }

  .mobile-menu .button {
    margin-top: auto;
  }

  body.menu-open .mobile-menu {
    transform: translateX(0);
  }

  body.menu-open .mobile-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .hero-copy h1 {
    font-size: 72px;
  }

  .section-intro h2 {
    font-size: 56px;
  }

  .workbench-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  }

  .strategy-spotlight {
    padding: 42px 38px 46px;
  }

  .strategy-spotlight h3 {
    font-size: 41px;
  }

  .engine-stages {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .engine-stages li:nth-child(odd) {
    border-left: 0;
  }

  .engine-stages li:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

}

@media (max-width: 820px) {
  :root {
    --header: 66px;
  }

  .section-shell,
  .hero-inner {
    width: min(calc(100% - 40px), var(--max));
  }

  .section-pad {
    padding: 104px 0;
  }

  .site-header {
    padding: 0 20px;
  }

  .header-cta {
    display: none;
  }

  .hero {
    min-height: 760px;
  }

  .hero-vignette {
    background:
      linear-gradient(90deg, rgba(0, 0, 0, 0.93), rgba(0, 0, 0, 0.52)),
      linear-gradient(0deg, #050607 0%, transparent 38%);
  }

  .hero-inner {
    padding-top: 84px;
  }

  .hero-copy,
  .hero-routes {
    width: 100%;
  }

  .hero-copy h1 {
    max-width: 660px;
    font-size: 62px;
  }

  .section-intro h2 {
    font-size: 47px;
  }

  .job-split,
  .risk-grid {
    grid-template-columns: 1fr;
  }

  .job-column,
  .job-column + .job-column,
  .risk-column,
  .risk-column + .risk-column {
    padding: 42px 0;
    border-left: 0;
  }

  .job-column + .job-column,
  .risk-column + .risk-column {
    border-top: 1px solid var(--line-strong);
  }

  .job-column {
    display: block;
    grid-column: 1;
    grid-row: auto;
    min-height: 0;
  }

  .job-column::after {
    opacity: 0.08;
  }

  .job-index {
    margin-bottom: 48px;
  }

  .workbench-visual {
    height: 320px;
  }

  .workbench-grid {
    grid-template-columns: 1fr;
  }

  .vip-access {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 22px 20px 24px;
  }

  .strategy-spotlight {
    display: none;
  }

  .strategy-option {
    grid-template-columns: 58px minmax(0, 1fr) auto;
  }

  .strategy-option.is-active {
    grid-template-rows: auto auto;
  }

  .strategy-option .mobile-strategy-detail {
    display: none;
    grid-column: 1 / -1;
    padding: 18px 0 8px;
    border-top: 1px solid var(--line);
    color: var(--text-muted);
    font-size: 13px;
  }

  .strategy-option.is-active .mobile-strategy-detail {
    display: grid;
    gap: 14px;
  }

  .mobile-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .mobile-detail-grid span {
    display: block;
    color: var(--text-faint);
    font-family: "IBM Plex Mono", monospace;
    font-size: 9px;
    text-transform: uppercase;
  }

  .mobile-detail-grid strong {
    display: block;
    margin-top: 4px;
    color: var(--text-soft);
    font-size: 12px;
    font-weight: 500;
  }

  .comparison-table-wrap {
    display: none;
  }

  .comparison-cards {
    display: grid;
    border-top: 1px solid var(--line-strong);
  }

  .return-mode-switch button {
    min-height: 104px;
    padding: 24px;
  }

  .return-mode-switch button::after {
    right: 24px;
    left: 24px;
  }

  .return-mode-switch span {
    font-size: 23px;
  }

  .engine-thesis {
    grid-template-columns: 1fr;
  }

  .engine-thesis > div {
    padding: 36px 30px;
  }

  .engine-thesis > div + div {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .engine-thesis strong {
    font-size: 31px;
  }

  .engine-facts {
    grid-template-columns: 1fr;
  }

  .engine-facts > div + div {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .comparison-card {
    display: grid;
    grid-template-columns: 90px minmax(0, 1fr) auto;
    gap: 16px;
    padding: 24px 0;
    border-bottom: 1px solid var(--line-strong);
    background: transparent;
    color: var(--text-muted);
    text-align: left;
    cursor: pointer;
  }

  .comparison-card .card-code {
    color: var(--text);
    font-family: "IBM Plex Mono", monospace;
    font-size: 13px;
  }

  .comparison-card.is-featured {
    padding-right: 14px;
    padding-left: 14px;
    background: linear-gradient(90deg, rgba(216, 194, 137, 0.07), transparent 72%);
    box-shadow: inset 2px 0 rgba(216, 194, 137, 0.7);
  }

  .comparison-card .card-code .featured-tag {
    display: inline-flex;
    margin-top: 10px;
    white-space: nowrap;
  }

  .comparison-card .card-copy strong,
  .comparison-card .card-copy span {
    display: block;
  }

  .comparison-card .card-copy strong {
    color: var(--text-soft);
    font-size: 14px;
    font-weight: 500;
  }

  .comparison-card .card-copy span {
    margin-top: 5px;
    color: var(--text-faint);
    font-size: 12px;
  }

  .comparison-card .card-yield {
    color: var(--gold-bright);
    font-size: 18px;
    white-space: nowrap;
  }

  .comparison-card .card-details {
    display: grid;
    grid-column: 2 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 22px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    color: var(--text-muted);
    font-size: 12px;
  }

  .comparison-card .card-details > span {
    display: block;
  }

  .comparison-card .card-details b {
    display: block;
    margin-bottom: 5px;
    color: var(--text-faint);
    font-family: "IBM Plex Mono", monospace;
    font-size: 9px;
    font-weight: 400;
    text-transform: uppercase;
  }

  .closing-inner h2 {
    font-size: 54px;
  }
}

@media (max-width: 560px) {
  .section-shell,
  .hero-inner {
    width: min(calc(100% - 32px), var(--max));
  }

  .section-pad {
    padding: 82px 0;
  }

  .site-header {
    padding: 0 16px;
  }

  .brand {
    gap: 10px;
  }

  .brand img {
    width: 100px;
    height: auto;
  }

  .brand span {
    display: none;
  }

  .header-actions {
    gap: 8px;
  }

  .language-trigger {
    min-width: 42px;
    padding: 0;
  }

  .language-trigger span {
    display: none;
  }

  .hero {
    min-height: 710px;
  }

  .hero-media {
    background-position: 62% center;
  }

  .hero-inner {
    padding-top: 70px;
    padding-bottom: 28px;
  }

  .hero-copy h1 {
    font-size: 48px;
    line-height: 1.02;
  }

  .hero-lede {
    font-size: 17px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-routes {
    grid-template-columns: 1fr;
  }

  .hero-route {
    padding: 16px 0;
  }

  .hero-route + .hero-route {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .hero-route strong {
    font-size: 26px;
  }

  .section-intro {
    margin-bottom: 44px;
  }

  .section-intro h2 {
    font-size: 38px;
    line-height: 1.07;
  }

  .section-intro > p:last-child {
    font-size: 16px;
  }

  .job-column h3 {
    font-size: 34px;
  }

  .mode-switch {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mode-switch button {
    min-width: 0;
    padding: 0 12px;
  }

  .mode-switch button span {
    overflow-wrap: anywhere;
    text-align: left;
  }

  .workbench-visual {
    height: 250px;
  }

  .visual-caption {
    right: 18px;
    bottom: 16px;
    left: 18px;
  }

  .visual-caption span {
    max-width: 58%;
    font-size: 9px;
  }

  .visual-caption strong {
    font-size: 28px;
  }

  .selector-head {
    padding: 18px 16px;
  }

  .strategy-option {
    grid-template-columns: 48px minmax(0, 1fr) auto;
    gap: 10px;
    min-height: 84px;
    padding: 14px 16px;
  }

  .option-yield {
    font-size: 17px;
  }

  .mobile-detail-grid {
    grid-template-columns: 1fr;
  }

  .comparison-toolbar {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .comparison-toolbar button {
    min-width: 0;
    padding: 0 8px;
    overflow-wrap: anywhere;
  }

  .comparison-card {
    grid-template-columns: 62px minmax(0, 1fr);
  }

  .comparison-card .card-yield {
    grid-column: 2;
  }

  .comparison-card .card-details {
    grid-column: 1 / -1;
    grid-template-columns: 1fr;
  }

  .return-mode-switch {
    grid-template-columns: 1fr;
  }

  .return-mode-switch button {
    min-height: 88px;
    padding: 20px 22px;
  }

  .return-mode-switch button + button {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .return-mode-switch button::after {
    right: 22px;
    left: 22px;
  }

  .return-mode-switch span {
    font-size: 21px;
  }

  .engine-thesis > div {
    padding: 28px 22px;
  }

  .engine-thesis strong {
    font-size: 26px;
  }

  .engine-stages {
    grid-template-columns: 1fr;
  }

  .engine-stages li,
  .engine-stages li:nth-child(odd) {
    min-height: 0;
    padding: 30px 22px 34px;
    border-left: 0;
  }

  .engine-stages li + li {
    border-top: 1px solid var(--line);
  }

  .engine-index {
    margin-bottom: 28px;
    font-size: 32px;
  }

  .engine-facts > div {
    padding: 24px 22px 26px;
  }

  .risk-heading h3 {
    font-size: 27px;
  }

  .closing-section,
  .closing-inner {
    min-height: 570px;
  }

  .closing-inner h2 {
    font-size: 44px;
  }

  .closing-actions {
    display: grid;
  }

  .disclosure .section-shell {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .site-footer {
    padding: 0 16px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}