:root {
  --page-bg: #f6f6f2;
  --surface: #ffffff;
  --surface-muted: #ededE8;
  --surface-strong: #111111;
  --text-primary: #111111;
  --text-secondary: #60645f;
  --text-inverse: #ffffff;
  --border-color: #d8d8d0;
  --brand-primary: #111111;
  --brand-primary-dark: #000000;
  --brand-accent: #315c4f;
  --hero-bg: #efefeb;
  --focus-ring: rgba(49, 92, 79, 0.24);
  --card-radius: 10px;
  --button-radius: 6px;
  --content-width: 1160px;
  --space-section: clamp(56px, 9vw, 108px);
  --heading-font: Georgia, "Times New Roman", "Noto Serif TC", serif;
  --body-font: Arial, "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scrollbar-gutter: stable;
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  margin: 0;
  color: var(--text-primary);
  background: var(--page-bg);
  font-family: var(--body-font);
  line-height: 1.7;
}

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

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--brand-accent);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--focus-ring);
}

.site-header {
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.96);
  font-family: Arial, "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

.site-header-inner,
.section-inner {
  width: min(var(--content-width), calc(100% - 32px));
  max-width: 100%;
  margin: 0 auto;
}

.site-header-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.brand,
.site-nav,
.footer-nav,
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.brand {
  gap: 10px;
  min-height: 44px;
  color: var(--brand-primary-dark);
  font-weight: 900;
  line-height: 1.2;
  text-decoration: none;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border: 8px solid var(--brand-primary);
  border-right-color: var(--brand-accent);
  border-radius: 50%;
}

.brand-text {
  line-height: 1.2;
  white-space: nowrap;
}

.site-nav {
  gap: 4px 14px;
}

.site-nav a,
.footer-nav a,
.footer-nav span {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--text-secondary);
  font-weight: 800;
  text-decoration: none;
}

.site-nav a {
  line-height: 1.2;
}

.site-nav a:hover,
.footer-nav a:hover {
  color: var(--brand-primary);
}

.nav-cta,
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--button-radius);
  font-weight: 900;
  text-decoration: none;
}

.nav-cta {
  padding: 10px 15px;
  color: var(--text-inverse);
  background: var(--brand-primary);
  line-height: 1.2;
}

.nav-cta:hover,
.button-primary:hover {
  background: var(--brand-primary-dark);
}

.button {
  padding: 11px 18px;
}

.button-primary {
  color: var(--text-inverse);
  background: var(--brand-primary);
}

.button-secondary {
  border-color: var(--border-color);
  color: var(--brand-primary-dark);
  background: var(--surface);
}

.hero-section {
  overflow: clip;
  border-bottom: 1px solid var(--border-color);
  background: var(--hero-bg);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(300px, 0.68fr);
  gap: clamp(22px, 3.5vw, 44px);
  align-content: center;
  align-items: center;
  min-height: 0;
  padding: clamp(40px, 5vw, 60px) 0 clamp(32px, 4vw, 46px);
}

.hero-content {
  display: grid;
  gap: 20px;
  min-width: 0;
}

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

.hero-media {
  position: relative;
  display: grid;
  gap: 10px;
  align-self: center;
  min-width: 0;
  place-items: center;
  padding: clamp(10px, 1.8vw, 18px);
  isolation: isolate;
}

.hero-media::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  border: 1px solid rgba(17, 17, 17, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.58);
  content: "";
}

.hero-disclaimer {
  max-width: 560px;
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand-accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1,
h2,
h3 {
  color: var(--text-primary);
  font-family: var(--heading-font);
  line-height: 1.14;
  letter-spacing: 0;
}

h1 {
  max-width: 790px;
  margin-bottom: 22px;
  font-size: clamp(2.45rem, 5vw, 4.35rem);
  text-wrap: balance;
}

#hero-title .hero-title-etf {
  margin-left: 0.18em;
  white-space: nowrap;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 4vw, 3.1rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 1.14rem;
}

.hero-lead,
.section-heading p,
.value-card p,
.article-card p,
.method-list p,
.risk-grid p,
.footer-note {
  color: var(--text-secondary);
}

.hero-lead {
  max-width: 640px;
  margin-bottom: 0;
  font-size: clamp(1.02rem, 2vw, 1.18rem);
}

.hero-actions {
  gap: 12px;
  margin-top: 32px;
}

.hero-image-frame {
  width: min(84%, 315px);
  max-width: 100%;
  aspect-ratio: 928 / 1695;
  overflow: hidden;
  border: 0;
  border-radius: 6px;
  background: #eeeeeb;
}

.hero-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: 50% 50%;
}

.hero-stat-card {
  position: relative;
  margin-top: -6px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  width: min(100%, 255px);
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  background: rgba(255, 255, 255, 0.95);
}

.hero-stat-result,
.hero-stat-context {
  display: grid;
  gap: 1px;
  min-width: 0;
}

.hero-stat-context {
  justify-items: end;
  text-align: right;
}

.hero-stat-result span,
.hero-stat-context span,
.hero-stat-context small {
  color: var(--text-secondary);
  font-size: 0.76rem;
  line-height: 1.35;
}

.hero-stat-result span {
  white-space: nowrap;
}

.hero-stat-result strong {
  color: var(--brand-primary-dark);
  font-size: 1.56rem;
  line-height: 1.2;
}

.section-block {
  padding: var(--space-section) 0;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1fr);
  gap: clamp(24px, 5vw, 56px);
  align-items: start;
}

.section-heading {
  display: grid;
  gap: 8px;
  max-width: 780px;
  min-width: 0;
}

.section-heading p {
  margin-bottom: 0;
}

.compact-heading {
  margin-bottom: 32px;
}

.feature-panel,
.value-grid,
.article-grid,
.method-list,
.risk-grid {
  min-width: 0;
}

.feature-panel {
  display: grid;
  gap: 14px;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  background: var(--surface);
}

.feature-panel article,
.value-card,
.article-card,
.method-list article {
  min-width: 0;
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  background: var(--surface);
}

.feature-panel article {
  padding: 16px;
  background: var(--surface-muted);
}

.feature-panel p,
.value-card p,
.article-card p,
.method-list p {
  margin-bottom: 0;
}

.feature-index {
  display: inline-flex;
  margin-bottom: 8px;
  color: var(--brand-accent);
  font-weight: 900;
}

.values-section,
.method-section {
  background: var(--surface);
}

.value-grid,
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.value-card,
.article-card {
  padding: 20px;
}

.articles-section {
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: #f1f1ec;
}

.article-card {
  display: grid;
  gap: 12px;
}

.article-visual {
  min-height: 112px;
  border: 1px solid var(--border-color);
  border-radius: var(--button-radius);
  background: var(--surface-muted);
}

.article-visual-bars {
  background:
    linear-gradient(to top, rgba(17, 17, 17, 0.72) 0 36%, transparent 36%),
    linear-gradient(90deg, transparent 0 12%, var(--surface) 12% 18%, transparent 18% 32%, var(--surface) 32% 38%, transparent 38% 52%, var(--surface) 52% 58%, transparent 58% 72%, var(--surface) 72% 78%, transparent 78%),
    var(--surface-muted);
}

.article-visual-rings {
  background:
    radial-gradient(circle at 35% 50%, transparent 0 26px, var(--brand-primary) 27px 36px, transparent 37px),
    radial-gradient(circle at 62% 50%, transparent 0 38px, var(--brand-accent) 39px 48px, transparent 49px),
    var(--surface-muted);
}

.article-visual-lines {
  background:
    linear-gradient(135deg, transparent 12%, var(--brand-primary) 12% 15%, transparent 15% 38%, var(--brand-accent) 38% 41%, transparent 41% 68%, var(--brand-primary) 68% 71%, transparent 71%),
    var(--surface-muted);
}

.article-category {
  margin-bottom: 0;
  color: var(--brand-accent);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.placeholder-link {
  display: inline-flex;
  width: fit-content;
  min-height: 34px;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--button-radius);
  color: var(--text-secondary);
  background: var(--surface-muted);
  font-size: 0.88rem;
  font-weight: 900;
}

.method-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.method-list article {
  padding: 18px;
}

.risk-section {
  background: var(--surface-strong);
}

.risk-panel {
  color: var(--text-inverse);
}

.risk-panel .eyebrow,
.risk-panel h2 {
  color: var(--text-inverse);
}

.risk-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.risk-grid p {
  margin-bottom: 0;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--card-radius);
  color: #dfdfda;
}

.not-found-body {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.not-found-body .not-found-page {
  flex: 1;
}

.not-found-body .not-found-footer {
  margin-top: auto;
}

.not-found-page {
  display: grid;
  min-height: clamp(520px, 72vh, 760px);
  align-items: center;
  padding: clamp(36px, 6vw, 72px) 0;
}

.not-found-hero {
  width: min(100% - 32px, var(--content-width));
}

.not-found-stage {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  background: #f7f2e9;
  box-shadow: 0 24px 70px rgba(17, 17, 17, 0.1);
}

.not-found-visual,
.not-found-visual img {
  width: 100%;
}

.not-found-visual img {
  height: auto;
}

.not-found-content {
  position: absolute;
  top: 50%;
  left: clamp(28px, 5vw, 72px);
  z-index: 1;
  width: min(430px, 42%);
  transform: translateY(-50%);
}

.not-found-eyebrow {
  margin: 0 0 12px;
  color: var(--brand-accent);
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.not-found-content h1 {
  margin: 0;
  font-size: clamp(2rem, 4.4vw, 4.35rem);
  line-height: 1.08;
}

.not-found-copy {
  max-width: 31rem;
  margin: 18px 0 0;
  color: var(--text-secondary);
  font-size: clamp(0.95rem, 1.35vw, 1.08rem);
  line-height: 1.75;
}

.not-found-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.not-found-actions .button {
  min-height: 48px;
}

.site-footer {
  border-top: 1px solid var(--border-color);
  background: var(--surface);
}

.footer-layout {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  align-items: center;
  justify-content: space-between;
  padding: 30px 0;
}

.footer-brand {
  margin-bottom: 4px;
  font-weight: 900;
}

.footer-note {
  max-width: 420px;
  margin-bottom: 0;
  font-size: 0.92rem;
}

.footer-nav {
  gap: 2px 16px;
}

.footer-nav span {
  cursor: default;
}

@media (min-width: 941px) and (max-width: 1100px) {
  .hero-layout {
    grid-template-columns: minmax(0, 1.16fr) minmax(270px, 0.64fr);
    gap: clamp(18px, 2.8vw, 30px);
    padding: 38px 0 32px;
  }

  .hero-media {
    padding: 10px;
    gap: 8px;
  }

  .hero-image-frame {
    width: min(82%, 275px);
  }

  .hero-stat-card {
    width: min(100%, 220px);
    padding: 9px 11px;
  }

  .hero-stat-result strong {
    font-size: 1.4rem;
  }
}

@media (max-width: 940px) {
  .hero-section {
    background: var(--hero-bg);
  }

  .hero-layout {
    grid-template-columns: 1fr;
    grid-template-areas:
      "copy"
      "media"
      "disclaimer";
    gap: 14px;
    min-height: 0;
    padding: 48px 0 42px;
  }

  .hero-content {
    display: contents;
  }

  .hero-copy {
    grid-area: copy;
  }

  .hero-disclaimer {
    grid-area: disclaimer;
  }

  .hero-media {
    grid-area: media;
    width: min(100%, 440px);
    justify-self: center;
    gap: 10px;
    padding: 12px;
  }

  .split-layout,
  .value-grid,
  .article-grid,
  .risk-grid {
    grid-template-columns: 1fr;
  }

  .hero-image-frame {
    width: min(68%, 290px);
  }

  .not-found-content {
    left: clamp(24px, 4vw, 48px);
    width: min(390px, 41%);
  }

  .not-found-copy {
    margin-top: 14px;
    line-height: 1.65;
  }

  .not-found-actions {
    margin-top: 18px;
  }
}

@media (max-width: 840px) {
  .site-header-inner,
  .section-inner {
    width: min(100% - 24px, var(--content-width));
  }

  .site-nav {
    order: 3;
    width: 100%;
  }

  .site-nav a {
    min-height: 44px;
  }

  .nav-cta {
    margin-left: auto;
  }

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

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

  .not-found-page {
    min-height: auto;
    padding: 32px 0 48px;
  }
}

@media (max-width: 767px) {
  .not-found-hero {
    width: min(100% - 24px, var(--content-width));
  }

  .not-found-stage {
    display: grid;
  }

  .not-found-visual {
    order: 2;
    aspect-ratio: 1 / 1.08;
    overflow: hidden;
  }

  .not-found-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center bottom;
  }

  .not-found-content {
    position: static;
    top: auto;
    left: auto;
    order: 1;
    width: auto;
    padding: 18px;
    background: #f7f2e9;
    transform: none;
  }

  .not-found-actions {
    display: grid;
    width: min(100%, 360px);
  }

  .not-found-actions .button {
    width: 100%;
  }
}

@media (min-width: 521px) and (max-width: 900px) {
  #hero-title .hero-title-intro {
    display: block;
  }

  #hero-title .hero-title-plan,
  #hero-title .hero-title-etf {
    white-space: nowrap;
  }
}

@media (max-width: 520px) {
  #hero-title .hero-title-intro,
  #hero-title .hero-title-plan,
  #hero-title .hero-title-etf {
    display: block;
    white-space: nowrap;
  }

  #hero-title .hero-title-etf {
    margin-left: 0;
  }

  .site-nav {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
  }

  .site-nav a {
    justify-content: center;
    padding: 5px 4px;
    border: 1px solid var(--border-color);
    border-radius: var(--button-radius);
    background: var(--surface);
    font-size: 0.92rem;
    text-align: center;
    white-space: normal;
  }

  .hero-media {
    width: min(100%, 320px);
    padding: 10px;
  }

  .hero-image-frame {
    width: min(72%, 230px);
  }

  .not-found-eyebrow {
    margin-bottom: 8px;
    font-size: 0.78rem;
    letter-spacing: 0.03em;
  }

  .not-found-content h1 {
    font-size: clamp(1.65rem, 8.2vw, 2.2rem);
  }

  .not-found-copy {
    margin-top: 10px;
    font-size: 0.88rem;
    line-height: 1.55;
  }

  .not-found-actions {
    display: grid;
    gap: 8px;
    margin-top: 14px;
  }

  .not-found-actions .button {
    width: 100%;
    min-height: 46px;
    padding: 9px 12px;
  }
}

@media (max-width: 420px) {
  .site-header-inner,
  .section-inner {
    width: min(100% - 20px, var(--content-width));
  }

  h1 {
    font-size: clamp(2.12rem, 11vw, 3rem);
  }

  h2 {
    font-size: clamp(1.7rem, 8vw, 2.25rem);
  }

  .brand-text {
    white-space: normal;
  }

  .hero-layout {
    gap: 10px;
    padding: 36px 0 34px;
  }

  .hero-actions {
    margin-top: 24px;
  }

  .hero-image-frame {
    width: min(72%, 220px);
  }

  .hero-stat-card {
    grid-template-columns: 1fr;
    gap: 6px;
    width: min(100%, 220px);
    padding: 11px 12px;
  }

  .hero-stat-context {
    justify-items: start;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}