:root {
  color-scheme: dark;
  --ink: #f5f2e9;
  --muted: #a8b0bd;
  --soft: #7f8998;
  --bg: #05080d;
  --bg-2: #080d14;
  --surface: #0c131e;
  --surface-2: #111a27;
  --line: rgba(255, 255, 255, 0.09);
  --line-gold: rgba(229, 178, 75, 0.28);
  --gold: #e5b24b;
  --gold-2: #f5d481;
  --gold-deep: #a87318;
  --cyan: #55c7d8;
  --green: #69d09c;
  --danger: #ff8e8e;
  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 30px;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.34);
  --container: 1180px;
  --header-h: 76px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background:
    radial-gradient(circle at 85% 2%, rgba(229, 178, 75, 0.08), transparent 25rem),
    radial-gradient(circle at 10% 42%, rgba(85, 199, 216, 0.045), transparent 32rem),
    var(--bg);
  color: var(--ink);
  font-family: Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  word-break: keep-all;
}

body.nav-open {
  overflow: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

a {
  color: inherit;
}

button,
input,
textarea,
select {
  font: inherit;
}

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

:focus-visible {
  outline: 3px solid rgba(85, 199, 216, 0.75);
  outline-offset: 4px;
}

::selection {
  color: #0b0c0d;
  background: var(--gold-2);
}

.skip-link {
  position: fixed;
  z-index: 999;
  top: 10px;
  left: 10px;
  padding: 10px 16px;
  border-radius: 10px;
  color: #071018;
  background: var(--cyan);
  font-weight: 800;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin-inline: auto;
}

.narrow {
  width: min(820px, calc(100% - 40px));
  margin-inline: auto;
}

.section {
  position: relative;
  padding: 104px 0;
}

.section-sm {
  padding: 72px 0;
}

.section-rule {
  border-top: 1px solid var(--line);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  color: var(--gold-2);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 22px;
  height: 1px;
  background: var(--gold);
  content: "";
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.25;
  letter-spacing: -0.035em;
}

h1 {
  font-size: clamp(2.6rem, 6vw, 5.25rem);
}

h2 {
  font-size: clamp(2rem, 4.3vw, 3.5rem);
}

h3 {
  font-size: 1.32rem;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  align-items: end;
  gap: 50px;
  margin-bottom: 48px;
}

.section-heading h2 {
  max-width: 780px;
  margin-bottom: 0;
}

.section-heading p {
  margin-bottom: 4px;
  color: var(--muted);
}

.text-gold {
  color: var(--gold-2);
}

.text-cyan {
  color: var(--cyan);
}

.muted {
  color: var(--muted);
}

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  background: rgba(5, 8, 13, 0.66);
  backdrop-filter: blur(18px) saturate(130%);
  transition: border-color 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(5, 8, 13, 0.91);
}

.header-inner {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  min-width: max-content;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  filter: drop-shadow(0 5px 14px rgba(229, 178, 75, 0.22));
}

.brand-text {
  display: grid;
  line-height: 1.08;
}

.brand-text strong {
  color: var(--gold-2);
  font-size: 1.05rem;
  letter-spacing: -0.025em;
}

.brand-text span {
  margin-top: 5px;
  color: var(--soft);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.11em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  position: relative;
  padding: 10px 13px;
  border-radius: 9px;
  color: #c2c9d3;
  font-size: 0.91rem;
  font-weight: 700;
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.055);
}

.site-nav a[aria-current="page"]::after {
  position: absolute;
  right: 13px;
  bottom: 4px;
  left: 13px;
  height: 2px;
  border-radius: 2px;
  background: var(--gold);
  content: "";
}

.header-cta {
  display: inline-flex;
  min-width: max-content;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--line-gold);
  border-radius: 10px;
  color: var(--gold-2);
  background: rgba(229, 178, 75, 0.07);
  font-size: 0.88rem;
  font-weight: 800;
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.header-cta:hover {
  border-color: rgba(229, 178, 75, 0.55);
  background: rgba(229, 178, 75, 0.13);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  background: var(--surface);
  cursor: pointer;
}

.nav-toggle-lines,
.nav-toggle-lines::before,
.nav-toggle-lines::after {
  display: block;
  width: 19px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle-lines {
  position: relative;
}

.nav-toggle-lines::before,
.nav-toggle-lines::after {
  position: absolute;
  left: 0;
  content: "";
}

.nav-toggle-lines::before {
  top: -6px;
}

.nav-toggle-lines::after {
  top: 6px;
}

.nav-open .nav-toggle-lines {
  background: transparent;
}

.nav-open .nav-toggle-lines::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-open .nav-toggle-lines::after {
  top: 0;
  transform: rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 820px;
  padding: calc(var(--header-h) + 92px) 0 84px;
  border-bottom: 1px solid var(--line);
  isolation: isolate;
  overflow: hidden;
}

.hero::before {
  position: absolute;
  z-index: -2;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 8, 13, 0.96) 0%, rgba(5, 8, 13, 0.82) 42%, rgba(5, 8, 13, 0.35) 100%),
    url("../images/hero-grid.png") center bottom / cover no-repeat;
  opacity: 0.86;
  content: "";
}

.hero::after {
  position: absolute;
  z-index: -1;
  top: 8%;
  right: -11rem;
  width: 42rem;
  height: 42rem;
  border: 1px solid rgba(229, 178, 75, 0.12);
  border-radius: 50%;
  box-shadow: 0 0 0 80px rgba(229, 178, 75, 0.018), 0 0 0 160px rgba(229, 178, 75, 0.012);
  content: "";
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(400px, 0.97fr);
  align-items: center;
  gap: 64px;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  padding: 7px 12px;
  border: 1px solid var(--line-gold);
  border-radius: 999px;
  color: var(--gold-2);
  background: rgba(229, 178, 75, 0.06);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(105, 208, 156, 0.11);
}

.hero h1 {
  max-width: 720px;
  margin-bottom: 26px;
  font-size: clamp(3rem, 5.8vw, 5.35rem);
}

.hero h1 span {
  display: block;
  background: linear-gradient(110deg, #fff4cd 0%, var(--gold-2) 45%, #c58a25 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  max-width: 650px;
  margin-bottom: 34px;
  color: #b8c1cd;
  font-size: clamp(1.03rem, 1.7vw, 1.18rem);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 20px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 0.94rem;
  font-weight: 850;
  text-decoration: none;
  transition: transform 170ms ease, box-shadow 170ms ease, border-color 170ms ease, background 170ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #12100a;
  background: linear-gradient(135deg, #f6d77e, #d99c2d);
  box-shadow: 0 14px 34px rgba(192, 126, 18, 0.2);
}

.button-primary:hover {
  box-shadow: 0 17px 40px rgba(192, 126, 18, 0.31);
}

.button-secondary {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.035);
}

.button-secondary:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.07);
}

.hero-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  max-width: 610px;
  margin: 26px 0 0;
  color: var(--soft);
  font-size: 0.8rem;
}

.hero-note svg {
  flex: 0 0 auto;
  margin-top: 3px;
  color: var(--cyan);
}

.hero-visual {
  position: relative;
  min-height: 530px;
}

.orbit {
  position: absolute;
  inset: 7% 3% 2% 7%;
  border: 1px solid rgba(229, 178, 75, 0.12);
  border-radius: 50%;
  transform: rotate(-12deg);
}

.orbit::before,
.orbit::after {
  position: absolute;
  border: 1px solid rgba(85, 199, 216, 0.1);
  border-radius: 50%;
  content: "";
}

.orbit::before {
  inset: 13%;
}

.orbit::after {
  inset: 27%;
}

.app-window {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  width: min(590px, 104%);
  padding: 10px;
  border: 1px solid rgba(229, 178, 75, 0.3);
  border-radius: 20px;
  background: rgba(8, 13, 20, 0.83);
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.6), 0 0 70px rgba(229, 178, 75, 0.08);
  transform: translate(-50%, -49%) rotate(1.2deg);
  backdrop-filter: blur(14px);
}

.window-top {
  display: flex;
  height: 28px;
  align-items: center;
  gap: 6px;
  padding: 0 5px;
}

.window-top i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
}

.window-top i:first-child {
  background: var(--gold);
}

.app-window img {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
}

.floating-ball {
  position: absolute;
  z-index: 3;
  display: grid;
  width: 66px;
  height: 66px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  color: #14100a;
  background: radial-gradient(circle at 32% 27%, #fff7cb 0%, #f1c453 25%, #bd7415 75%, #70400c 100%);
  box-shadow: inset -8px -10px 15px rgba(67, 31, 0, 0.28), 0 14px 32px rgba(0, 0, 0, 0.4);
  font-size: 1.22rem;
  font-weight: 900;
}

.ball-a {
  top: 2%;
  right: 12%;
}

.ball-b {
  right: 1%;
  bottom: 11%;
  width: 52px;
  height: 52px;
  color: #eef9ff;
  background: radial-gradient(circle at 32% 27%, #8ee3ec 0%, #2799af 32%, #105569 78%, #08303b 100%);
  font-size: 1rem;
}

.ball-c {
  bottom: 3%;
  left: 6%;
  width: 45px;
  height: 45px;
  color: #effff4;
  background: radial-gradient(circle at 32% 27%, #9ee7bd 0%, #3f9d6b 34%, #175737 80%, #0a3520 100%);
  font-size: 0.9rem;
}

.trust-strip {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.018);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.trust-item {
  display: flex;
  min-height: 118px;
  align-items: center;
  gap: 15px;
  padding: 22px 26px;
  border-right: 1px solid var(--line);
}

.trust-item:first-child {
  border-left: 1px solid var(--line);
}

.trust-icon,
.icon-box {
  display: grid;
  flex: 0 0 auto;
  width: 43px;
  height: 43px;
  place-items: center;
  border: 1px solid var(--line-gold);
  border-radius: 12px;
  color: var(--gold-2);
  background: rgba(229, 178, 75, 0.06);
}

.trust-item strong {
  display: block;
  margin-bottom: 3px;
  font-size: 0.94rem;
}

.trust-item span {
  color: var(--soft);
  font-size: 0.75rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

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

.card {
  position: relative;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(17, 26, 39, 0.92), rgba(9, 14, 22, 0.86));
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.14);
  overflow: hidden;
}

.card::after {
  position: absolute;
  right: -55px;
  bottom: -75px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: var(--card-glow, rgba(229, 178, 75, 0.055));
  filter: blur(2px);
  content: "";
}

.card h3 {
  position: relative;
  z-index: 1;
  margin: 20px 0 10px;
}

.card p {
  position: relative;
  z-index: 1;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.feature-card:nth-child(2) {
  --card-glow: rgba(85, 199, 216, 0.06);
}

.feature-card:nth-child(3) {
  --card-glow: rgba(105, 208, 156, 0.055);
}

.feature-card:nth-child(2) .icon-box {
  border-color: rgba(85, 199, 216, 0.25);
  color: var(--cyan);
  background: rgba(85, 199, 216, 0.055);
}

.feature-card:nth-child(3) .icon-box {
  border-color: rgba(105, 208, 156, 0.22);
  color: var(--green);
  background: rgba(105, 208, 156, 0.05);
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: 72px;
}

.visual-panel {
  position: relative;
  min-height: 490px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(229, 178, 75, 0.07), transparent 45%),
    var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.analysis-board {
  position: absolute;
  inset: 20px;
  display: grid;
  grid-template-rows: auto 1fr;
  border: 1px solid rgba(229, 178, 75, 0.18);
  border-radius: 20px;
  background: #080d14;
  overflow: hidden;
}

.analysis-board-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}

.analysis-board-top strong {
  color: var(--gold-2);
}

.status-chip {
  padding: 5px 9px;
  border-radius: 999px;
  color: var(--green);
  background: rgba(105, 208, 156, 0.08);
  font-size: 0.68rem;
  font-weight: 800;
}

.analysis-board-main {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 12px;
  padding: 14px;
}

.mini-panel {
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}

.mini-panel span {
  color: var(--soft);
  font-size: 0.72rem;
}

.number-cloud {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 7px;
  margin-top: 15px;
}

.number-cloud i {
  display: grid;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: #cdd4dd;
  background: #0a1019;
  font-size: 0.7rem;
  font-style: normal;
}

.number-cloud i:nth-child(2),
.number-cloud i:nth-child(7),
.number-cloud i:nth-child(13) {
  border-color: rgba(229, 178, 75, 0.45);
  color: #14100a;
  background: var(--gold-2);
}

.chart-svg {
  width: 100%;
  height: 150px;
  margin-top: 18px;
}

.check-list {
  display: grid;
  gap: 15px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 34px;
  color: #cbd2dc;
}

.check-list li::before {
  position: absolute;
  top: 5px;
  left: 0;
  display: grid;
  width: 21px;
  height: 21px;
  place-items: center;
  border: 1px solid rgba(105, 208, 156, 0.28);
  border-radius: 50%;
  color: var(--green);
  background: rgba(105, 208, 156, 0.055);
  content: "✓";
  font-size: 0.67rem;
  font-weight: 900;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  counter-reset: principle;
}

.principle-item {
  min-height: 260px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(12, 19, 30, 0.7);
  counter-increment: principle;
}

.principle-item::before {
  display: block;
  margin-bottom: 48px;
  color: var(--gold);
  content: "0" counter(principle);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  font-weight: 800;
}

.principle-item h3 {
  margin-bottom: 10px;
}

.principle-item p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.topic-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}

.topic-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.018);
  font-size: 0.82rem;
  font-weight: 750;
  text-decoration: none;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}

.topic-nav a:hover {
  border-color: var(--line-gold);
  color: var(--ink);
  background: rgba(229, 178, 75, 0.045);
}

.topic-nav span {
  color: var(--gold);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.7rem;
}

.article-card {
  display: flex;
  min-height: 330px;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.article-card:hover {
  border-color: var(--line-gold);
  background: var(--surface-2);
  transform: translateY(-4px);
}

.article-card--featured {
  min-height: 280px;
  grid-column: 1 / -1;
  background:
    radial-gradient(circle at 84% 20%, rgba(229, 178, 75, 0.14), transparent 32%),
    linear-gradient(135deg, rgba(229, 178, 75, 0.055), var(--surface) 52%);
}

.article-card--featured h3 {
  max-width: 720px;
  font-size: clamp(1.55rem, 3vw, 2.25rem);
}

.article-card--featured p {
  max-width: 760px;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 52px;
  color: var(--soft);
  font-size: 0.72rem;
}

.article-tag {
  color: var(--cyan);
  font-weight: 800;
}

.article-card h3 {
  margin-bottom: 14px;
  font-size: 1.35rem;
}

.article-card p {
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 0.9rem;
}

.article-more {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  color: var(--gold-2);
  font-size: 0.84rem;
  font-weight: 800;
}

.notice-box {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  padding: 24px;
  border: 1px solid rgba(85, 199, 216, 0.2);
  border-radius: var(--radius);
  background: rgba(85, 199, 216, 0.045);
}

.notice-box.warning {
  border-color: rgba(229, 178, 75, 0.22);
  background: rgba(229, 178, 75, 0.045);
}

.notice-box h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.notice-box p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.89rem;
}

.cta-panel {
  position: relative;
  padding: 62px;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 88% 8%, rgba(229, 178, 75, 0.16), transparent 20rem),
    linear-gradient(135deg, #111924, #090e15 68%);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.cta-panel::after {
  position: absolute;
  right: 7%;
  bottom: -80px;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(229, 178, 75, 0.14);
  border-radius: 50%;
  box-shadow: 0 0 0 45px rgba(229, 178, 75, 0.025), 0 0 0 90px rgba(229, 178, 75, 0.015);
  content: "";
}

.cta-panel > * {
  position: relative;
  z-index: 1;
}

.cta-panel h2 {
  max-width: 800px;
  margin-bottom: 18px;
}

.cta-panel > p {
  max-width: 720px;
  margin-bottom: 30px;
  color: var(--muted);
}

.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 90px) 0 80px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-hero::after {
  position: absolute;
  top: -20rem;
  right: -15rem;
  width: 48rem;
  height: 48rem;
  border: 1px solid rgba(229, 178, 75, 0.12);
  border-radius: 50%;
  box-shadow: 0 0 0 90px rgba(229, 178, 75, 0.018), 0 0 0 180px rgba(229, 178, 75, 0.012);
  content: "";
  pointer-events: none;
}

.page-hero h1 {
  max-width: 900px;
  margin-bottom: 24px;
  font-size: clamp(2.55rem, 5.4vw, 4.8rem);
}

.page-hero .lead {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 30px;
  color: var(--soft);
  font-size: 0.76rem;
}

.breadcrumb a {
  color: #c9d0da;
  text-decoration: none;
}

.breadcrumb span:not(:last-child)::after,
.breadcrumb a::after {
  margin-left: 8px;
  color: #4f5967;
  content: "/";
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  align-items: start;
  gap: 70px;
}

.article-body {
  color: #cbd2dc;
}

.article-body h2 {
  margin: 64px 0 20px;
  padding-top: 12px;
  font-size: clamp(1.65rem, 3vw, 2.25rem);
}

.article-body h3 {
  margin: 38px 0 14px;
}

.article-body p,
.article-body li {
  color: #bdc5d0;
}

.article-body p {
  margin-bottom: 22px;
}

.article-body ul,
.article-body ol {
  display: grid;
  gap: 10px;
  margin: 18px 0 28px;
  padding-left: 24px;
}

.article-body strong {
  color: var(--ink);
}

.article-body a {
  color: var(--cyan);
}

.article-body blockquote {
  margin: 34px 0;
  padding: 22px 24px;
  border-left: 3px solid var(--gold);
  border-radius: 0 14px 14px 0;
  color: #d8dfe8;
  background: rgba(229, 178, 75, 0.055);
}

.article-byline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 28px;
  color: var(--soft);
  font-size: 0.78rem;
}

.article-byline span:not(:first-child)::before {
  margin-right: 22px;
  color: #39414d;
  content: "·";
}

.article-figure {
  margin: 34px 0 46px;
}

.article-figure img {
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

.article-figure figcaption {
  margin-top: 12px;
  color: var(--soft);
  font-size: 0.76rem;
  line-height: 1.65;
}

.comparison-box {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 26px 0;
}

.comparison-box > div {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}

.comparison-box > div:first-child {
  border-color: rgba(85, 199, 216, 0.22);
}

.comparison-box strong {
  display: block;
  margin-bottom: 10px;
  color: var(--cyan);
  font-size: 0.8rem;
}

.comparison-box > div:last-child strong {
  color: var(--gold-2);
}

.comparison-box p {
  margin: 0;
  font-size: 0.88rem;
}

.data-example {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 28px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
}

.data-example > div {
  display: grid;
  gap: 7px;
  padding: 22px;
  background: var(--surface);
}

.data-example span,
.data-example small {
  color: var(--soft);
  font-size: 0.72rem;
}

.data-example strong {
  color: var(--gold-2);
  font-size: 1.25rem;
}

.definition-item dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.75;
}

.record-table-wrap {
  margin: 26px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow-x: auto;
}

.record-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  font-size: 0.84rem;
}

.record-table th,
.record-table td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.record-table thead th {
  color: var(--gold-2);
  background: rgba(229, 178, 75, 0.045);
}

.record-table tbody th {
  width: 150px;
  color: var(--ink);
}

.record-table td {
  color: var(--muted);
}

.record-table tbody tr:last-child th,
.record-table tbody tr:last-child td {
  border-bottom: 0;
}

.start-checklist {
  padding-left: 0 !important;
  list-style: none;
  counter-reset: starter;
}

.start-checklist li {
  display: grid;
  grid-template-columns: 34px 150px 1fr;
  align-items: center;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  counter-increment: starter;
}

.start-checklist li::before {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid var(--line-gold);
  border-radius: 50%;
  color: var(--gold);
  content: counter(starter);
  font-size: 0.72rem;
  font-weight: 800;
}

.start-checklist span {
  color: var(--muted);
  font-size: 0.85rem;
}

.formula-box {
  margin: 30px 0;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.formula-box code {
  color: var(--gold-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1rem;
}

.article-aside {
  position: sticky;
  top: calc(var(--header-h) + 28px);
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.article-aside strong {
  display: block;
  margin-bottom: 16px;
}

.article-aside nav {
  display: grid;
  gap: 10px;
}

.article-aside a {
  color: var(--muted);
  font-size: 0.84rem;
  text-decoration: none;
}

.article-aside a:hover {
  color: var(--gold-2);
}

.aside-note {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.aside-note span {
  color: var(--gold);
  font-size: 0.7rem;
  font-weight: 800;
}

.aside-note p {
  margin: 8px 0 12px;
  color: var(--soft);
  font-size: 0.75rem;
  line-height: 1.65;
}

.aside-note a {
  color: var(--cyan);
  font-weight: 750;
}

.channel-proof {
  display: grid;
  max-width: 650px;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  margin-top: 30px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}

.channel-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 12px;
  color: #fff;
  background: #e12828;
  font-size: 0.8rem;
}

.channel-proof strong,
.channel-proof span {
  display: block;
}

.channel-proof div span {
  margin-top: 3px;
  color: var(--soft);
  font-size: 0.74rem;
}

.channel-proof a {
  color: var(--gold-2);
  font-size: 0.78rem;
  font-weight: 800;
  text-decoration: none;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.video-grid-two {
  grid-template-columns: repeat(2, 1fr);
}

.video-card {
  display: flex;
  min-height: 350px;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: inherit;
  background: var(--surface);
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.video-card:hover {
  border-color: var(--line-gold);
  background: var(--surface-2);
  transform: translateY(-4px);
}

.video-card--primary,
.video-card--wide {
  background:
    radial-gradient(circle at 82% 13%, rgba(229, 178, 75, 0.15), transparent 32%),
    var(--surface);
}

.video-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 44px;
}

.video-play {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--line-gold);
  border-radius: 50%;
  color: var(--gold-2);
  background: rgba(229, 178, 75, 0.06);
  font-size: 0.8rem;
}

.video-duration {
  padding: 5px 9px;
  border-radius: 7px;
  color: var(--muted);
  background: #080c12;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.68rem;
}

.video-category {
  margin-bottom: 10px;
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 800;
}

.video-card h3 {
  margin-bottom: 14px;
  font-size: 1.25rem;
  line-height: 1.45;
}

.video-card p {
  margin-bottom: 26px;
  color: var(--muted);
  font-size: 0.86rem;
}

.video-card .article-more {
  margin-top: auto;
}

.guide-link-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.guide-link-row a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: inherit;
  text-decoration: none;
}

.guide-link-row a:hover {
  border-color: rgba(85, 199, 216, 0.3);
}

.guide-link-row span {
  color: var(--cyan);
  font-size: 0.74rem;
  text-align: right;
}

.video-caution {
  margin-top: 18px;
}

.shorts-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.shorts-grid a {
  display: flex;
  min-height: 220px;
  flex-direction: column;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: inherit;
  background:
    linear-gradient(160deg, rgba(229, 178, 75, 0.05), transparent 44%),
    var(--surface);
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease;
}

.shorts-grid a:hover {
  border-color: var(--line-gold);
  transform: translateY(-3px);
}

.shorts-grid span {
  color: var(--gold);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
}

.shorts-grid strong {
  margin: 34px 0 22px;
  font-size: 1rem;
  line-height: 1.55;
}

.shorts-grid small {
  margin-top: auto;
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 750;
}

.definition-list {
  display: grid;
  gap: 14px;
}

.definition-item {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.definition-item dt {
  margin-bottom: 8px;
  color: var(--gold-2);
  font-weight: 850;
}

.definition-item dd {
  margin: 0;
  color: var(--muted);
}

.step-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.step-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  counter-increment: steps;
}

.step-list li::before {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--line-gold);
  border-radius: 12px;
  color: var(--gold-2);
  background: rgba(229, 178, 75, 0.055);
  content: counter(steps);
  font-weight: 900;
}

.step-list h3 {
  margin: 2px 0 7px;
  font-size: 1.05rem;
}

.step-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}

.faq-list details[open] {
  border-color: var(--line-gold);
}

.faq-list summary {
  position: relative;
  padding: 22px 60px 22px 24px;
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 24px;
  color: var(--gold-2);
  content: "+";
  font-size: 1.4rem;
  transform: translateY(-50%);
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 24px 24px;
  color: var(--muted);
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.site-footer {
  padding: 66px 0 28px;
  border-top: 1px solid var(--line);
  background: #04070b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr 0.75fr;
  gap: 70px;
  padding-bottom: 46px;
}

.footer-brand p {
  max-width: 430px;
  margin: 20px 0 0;
  color: var(--soft);
  font-size: 0.84rem;
}

.footer-title {
  display: block;
  margin-bottom: 16px;
  color: #d9dee5;
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.footer-links {
  display: grid;
  gap: 10px;
}

.footer-links a {
  color: var(--soft);
  font-size: 0.82rem;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--gold-2);
}

.footer-bottom {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: #687381;
  font-size: 0.72rem;
}

.footer-bottom p {
  max-width: 760px;
  margin: 0;
}

.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

.error-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 40px;
  text-align: center;
}

.error-page strong {
  display: block;
  margin-bottom: 20px;
  color: var(--gold-2);
  font-size: clamp(4rem, 12vw, 8rem);
  line-height: 1;
}

@media (max-width: 1060px) {
  .site-nav a {
    padding-inline: 9px;
    font-size: 0.84rem;
  }

  .header-cta {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr 0.9fr;
    gap: 28px;
  }

  .floating-ball {
    width: 56px;
    height: 56px;
  }

  .trust-item {
    padding-inline: 18px;
  }

  .principle-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  :root {
    --header-h: 68px;
  }

  body {
    word-break: normal;
  }

  .container,
  .narrow {
    width: min(100% - 30px, var(--container));
  }

  .section {
    padding: 78px 0;
  }

  .section-heading,
  .split,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .section-heading {
    gap: 20px;
    margin-bottom: 34px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    z-index: 101;
    top: 100%;
    right: 0;
    bottom: auto;
    left: 0;
    display: grid;
    height: calc(100vh - var(--header-h));
    align-content: start;
    gap: 4px;
    padding: 20px 15px 40px;
    border-top: 1px solid var(--line);
    background: #05080d;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.58);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 220ms ease;
  }

  .nav-open .site-nav {
    transform: none;
  }

  .site-nav a {
    padding: 16px 18px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    font-size: 1rem;
  }

  .site-nav a[aria-current="page"]::after {
    top: 50%;
    right: 18px;
    bottom: auto;
    left: auto;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    transform: translateY(-50%);
  }

  .hero {
    min-height: auto;
    padding: calc(var(--header-h) + 62px) 0 60px;
  }

  .hero::before {
    background:
      linear-gradient(180deg, rgba(5, 8, 13, 0.98) 0%, rgba(5, 8, 13, 0.87) 54%, rgba(5, 8, 13, 0.48) 100%),
      url("../images/hero-grid.png") center bottom / cover no-repeat;
  }

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

  .hero-copy {
    text-align: center;
  }

  .hero-kicker,
  .button-row,
  .hero-note {
    justify-content: center;
  }

  .hero-lead,
  .hero-note {
    margin-inline: auto;
  }

  .hero-visual {
    min-height: 410px;
    margin-top: 18px;
  }

  .app-window {
    width: min(650px, 96%);
  }

  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-item:nth-child(3) {
    border-left: 1px solid var(--line);
  }

  .trust-item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .card-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

  .article-card {
    min-height: 260px;
  }

  .article-meta {
    margin-bottom: 30px;
  }

  .split {
    gap: 42px;
  }

  .visual-panel {
    min-height: 450px;
  }

  .article-aside {
    position: static;
    order: -1;
  }

  .topic-nav,
  .shorts-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .video-grid,
  .video-grid-two {
    grid-template-columns: 1fr;
  }

  .video-card {
    min-height: 300px;
  }

  .data-example {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 38px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .brand-text span {
    display: none;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .hero h1 {
    font-size: clamp(2.65rem, 14vw, 4rem);
  }

  .hero-lead {
    font-size: 0.98rem;
  }

  .button-row {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 310px;
  }

  .floating-ball {
    width: 45px;
    height: 45px;
    font-size: 0.9rem;
  }

  .ball-b {
    width: 38px;
    height: 38px;
  }

  .ball-c {
    display: none;
  }

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

  .trust-item,
  .trust-item:nth-child(3) {
    min-height: 96px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }

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

  .principle-item {
    min-height: 220px;
  }

  .visual-panel {
    min-height: 390px;
    padding: 12px;
  }

  .analysis-board {
    inset: 12px;
  }

  .analysis-board-main {
    grid-template-columns: 1fr;
  }

  .mini-panel:last-child {
    display: none;
  }

  .cta-panel {
    padding: 36px 24px;
  }

  .page-hero {
    padding: calc(var(--header-h) + 58px) 0 58px;
  }

  .page-hero h1 {
    font-size: 2.55rem;
  }

  .notice-box {
    grid-template-columns: 1fr;
  }

  .topic-nav,
  .comparison-box,
  .guide-link-row,
  .shorts-grid {
    grid-template-columns: 1fr;
  }

  .article-byline {
    display: grid;
    gap: 5px;
  }

  .article-byline span:not(:first-child)::before {
    display: none;
  }

  .start-checklist li {
    grid-template-columns: 34px 1fr;
  }

  .start-checklist span {
    grid-column: 2;
  }

  .channel-proof {
    grid-template-columns: auto 1fr;
  }

  .channel-proof > a {
    grid-column: 2;
  }

  .guide-link-row a {
    display: grid;
  }

  .guide-link-row span {
    text-align: left;
  }

  .step-list li {
    grid-template-columns: 1fr;
  }

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

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

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

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