:root {
  --bg: #09111b;
  --bg-deep: #050a12;
  --panel: rgba(12, 24, 37, 0.72);
  --panel-strong: rgba(11, 21, 33, 0.92);
  --line: rgba(236, 245, 255, 0.12);
  --line-strong: rgba(124, 243, 221, 0.28);
  --text: #ecf5ff;
  --muted: #93a8bf;
  --accent: #7cf3dd;
  --gold: #dcb86a;
  --gold-bright: #f5ddac;
  --amber: #f2b85e;
  --danger: #ff9f90;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
  --radius: 28px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Space Grotesk", "Noto Sans TC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 10%, rgba(124, 243, 221, 0.14), transparent 30%),
    radial-gradient(circle at 78% 18%, rgba(242, 184, 94, 0.13), transparent 28%),
    linear-gradient(180deg, var(--bg), var(--bg-deep) 65%, #03060b);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.78), transparent 78%);
  z-index: -1;
}

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { cursor: pointer; }

.progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(255,255,255,0.05);
  z-index: 1000;
}
.progress span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--gold-bright));
  box-shadow: 0 0 18px rgba(124, 243, 221, 0.65);
}

.site-shell {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 16px;
  margin: 18px 0 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(5, 10, 18, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.brand-orb {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--gold-bright), var(--gold) 35%, rgba(124,243,221,0.7) 70%, rgba(255,255,255,0.05));
  box-shadow: 0 0 28px rgba(220,184,106,0.45);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.92rem;
}
.nav-links a { transition: color .2s ease; }
.nav-links a:hover { color: var(--accent); }
.lang-toggle {
  display: flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
}
.lang-btn {
  border: 0;
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--muted);
  background: transparent;
}
.lang-btn.active {
  color: #061017;
  background: var(--accent);
}

.section-pad { padding: 74px 0; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(360px, 0.97fr);
  align-items: center;
  gap: 48px;
  min-height: calc(100vh - 130px);
  padding-top: 28px;
}
.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}
h1, h2, h3 {
  margin: 0;
  line-height: 1.04;
  letter-spacing: -0.035em;
}
h1, h2 { font-family: "Fraunces", "Noto Sans TC", serif; }
h1 {
  font-size: clamp(3rem, 7vw, 6.5rem);
  max-width: 880px;
}
h2 { font-size: clamp(2.15rem, 4.2vw, 4.55rem); }
h3 { font-size: 1.2rem; }
.hero-summary,
.section-heading p,
.article-copy p,
.estimate-copy p,
.cta-section p,
.brand-copy p,
.detail-card p,
.audience-card p,
.caution-card p,
.signal-card p,
.side-card li,
.practice-card li {
  color: var(--muted);
  line-height: 1.78;
}
.hero-summary {
  font-size: clamp(1.06rem, 1.7vw, 1.26rem);
  max-width: 720px;
  margin: 24px 0 0;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255,255,255,0.04);
  transition: transform .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-2px); border-color: var(--line-strong); }
.btn.primary {
  color: #031116;
  background: linear-gradient(135deg, var(--accent), #c5fff2);
  box-shadow: 0 14px 36px rgba(124,243,221,0.22);
  border-color: transparent;
  font-weight: 700;
}
.btn.secondary { color: var(--gold-bright); }
.btn.large { min-height: 54px; padding: 0 30px; }
.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 42px;
}
.metric-card {
  padding: 22px 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,0.045);
}
.metric-card strong {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2.35rem);
  color: var(--gold-bright);
}
.metric-card span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}
.hero-visual {
  position: relative;
  min-height: 540px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: radial-gradient(circle at 50% 42%, rgba(124,243,221,0.14), rgba(255,255,255,0.035) 35%, rgba(5,10,18,0.82) 78%);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.hero-visual::before,
.hero-visual::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(8px);
  opacity: 0.45;
}
.hero-visual::before {
  width: 240px;
  height: 240px;
  background: rgba(220,184,106,0.16);
  right: -60px;
  top: 40px;
}
.hero-visual::after {
  width: 190px;
  height: 190px;
  background: rgba(124,243,221,0.18);
  left: -40px;
  bottom: -30px;
}
#signalSphere {
  width: 100%;
  max-width: 530px;
  aspect-ratio: 1;
  position: relative;
  z-index: 1;
}
.hero-float-card {
  position: absolute;
  z-index: 3;
  width: min(270px, 70%);
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(5,10,18,0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 60px rgba(0,0,0,0.28);
}
.hero-float-card.top { top: 28px; left: 24px; }
.hero-float-card.bottom { bottom: 28px; right: 24px; }
.hero-float-card span {
  display: block;
  color: var(--accent);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 8px;
}
.hero-float-card strong { color: var(--text); }

.brand-module {
  position: relative;
  display: grid;
  grid-template-columns: 240px 1fr auto;
  align-items: center;
  gap: 26px;
  padding: 22px;
  margin: 8px 0 54px;
  border: 1px solid rgba(220,184,106,0.24);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(220,184,106,0.13), transparent 28%),
    rgba(255,255,255,0.035);
  overflow: hidden;
  box-shadow: 0 22px 70px rgba(0,0,0,0.26);
}
.brand-video-wrap {
  position: relative;
  height: 190px;
  border-radius: 24px;
  overflow: hidden;
  background: transparent;
  mask-image: radial-gradient(circle at center, #000 58%, rgba(0,0,0,0.72) 78%, transparent 100%);
}
.brand-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  mix-blend-mode: screen;
  opacity: 0.76;
  filter: saturate(1.15) contrast(1.08);
}
.video-blend {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at center, transparent 34%, rgba(9,17,27,0.18) 62%, rgba(9,17,27,0.72) 94%),
    linear-gradient(90deg, rgba(9,17,27,0.18), rgba(9,17,27,0.42));
  pointer-events: none;
}
.brand-copy h2 { font-size: clamp(1.8rem, 3vw, 3.1rem); }
.brand-copy p:not(.eyebrow) { max-width: 640px; margin: 14px 0 18px; }
.brand-contact-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.brand-contact-list a,
.source-strip a,
.contact-links a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 13px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--gold-bright);
  background: rgba(255,255,255,0.035);
}
.brand-cta { white-space: nowrap; color: var(--gold-bright); border-color: rgba(220,184,106,0.45); }

.hero-panel,
.estimate-section,
.cta-section,
.source-strip {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}
.hero-panel { padding: 34px; }
.section-heading {
  max-width: 780px;
  margin-bottom: 32px;
}
.section-heading.compact {
  margin-bottom: 22px;
}
.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.signal-card {
  text-align: left;
  min-height: 230px;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 22px;
  color: var(--text);
  background: rgba(255,255,255,0.038);
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.signal-card:hover,
.signal-card.active {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  background: rgba(124,243,221,0.08);
}
.signal-card span,
.detail-card span,
.audience-card span,
.caution-card span,
.side-card span,
.stats-card span,
.practice-card span,
.result-panel span {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--accent);
  text-transform: uppercase;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
}
.signal-card strong { display: block; font-size: 1.25rem; }
.signal-card p { margin-bottom: 0; }
.segment-note {
  margin-top: 18px;
  padding: 16px 18px;
  color: var(--gold-bright);
  border: 1px solid rgba(220,184,106,0.24);
  border-radius: 18px;
  background: rgba(220,184,106,0.07);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.detail-card,
.audience-card,
.caution-card,
.side-card,
.stats-card,
.practice-card,
.calculator-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255,255,255,0.04);
  padding: 24px;
}
.detail-card h3,
.audience-card h3,
.caution-card h3 { margin-bottom: 12px; color: var(--text); }
.detail-card p,
.audience-card p,
.caution-card p { margin: 0; }

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.42fr);
  gap: 22px;
  align-items: stretch;
  padding: 74px 0;
}
.split-section.reverse { grid-template-columns: minmax(320px, 0.42fr) minmax(0, 1fr); }
.split-section.reverse .article-copy { grid-column: 2; }
.split-section.reverse .stats-card { grid-column: 1; grid-row: 1; }
.article-copy {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.035);
}
.article-copy p { font-size: 1.03rem; }
.article-copy p:last-child { margin-bottom: 0; }
.side-card,
.stats-card,
.practice-card {
  background:
    linear-gradient(135deg, rgba(124,243,221,0.08), transparent 38%),
    rgba(255,255,255,0.045);
}
.side-card ol,
.practice-card ul { margin: 18px 0 0; padding-left: 20px; }
.side-card li + li,
.practice-card li + li { margin-top: 16px; }
.stats-card { display: flex; flex-direction: column; justify-content: center; }
.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.stat-row:last-child { border-bottom: 0; }
.stat-row strong {
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  color: var(--gold-bright);
}
.stat-row span {
  margin: 0;
  color: var(--muted);
  text-transform: none;
  letter-spacing: 0;
  font-size: .98rem;
}

.audience-grid,
.caution-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.caution-grid { grid-template-columns: repeat(3, 1fr); }
.caution-section { padding-top: 42px; }

.estimate-section {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: 28px;
  padding: 34px;
  margin: 54px 0;
  align-items: center;
}
.estimate-copy { padding: 10px 8px; }
.calculator-card {
  background: var(--panel-strong);
}
.calculator-card label {
  display: block;
  margin: 16px 0 8px;
  color: var(--text);
  font-weight: 700;
}
.calculator-card label:first-child { margin-top: 0; }
.input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,0.06);
  padding: 0 16px;
}
.input-wrap span { color: var(--gold-bright); font-weight: 700; }
input, select {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: 18px;
  color: var(--text);
  background: rgba(255,255,255,0.06);
  padding: 0 15px;
  outline: none;
}
.input-wrap input { border: 0; background: transparent; padding-left: 0; }
select { appearance: none; }
.hint,
.disclaimer {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.6;
}
.checkbox-list { margin: 18px 0; display: grid; gap: 10px; }
.checkbox-list label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0;
  color: var(--muted);
  font-weight: 500;
}
.checkbox-list input { width: 18px; height: 18px; min-height: 0; accent-color: var(--accent); margin-top: 4px; }
.result-panel {
  margin-top: 18px;
  padding: 20px;
  border: 1px solid rgba(124,243,221,0.24);
  border-radius: 22px;
  background: rgba(124,243,221,0.07);
}
.result-panel h3 { margin-bottom: 14px; }
.result-panel p { color: var(--muted); line-height: 1.7; margin-bottom: 0; }
.result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 16px 0;
}
.result-grid div {
  padding: 16px;
  border-radius: 16px;
  background: rgba(255,255,255,0.055);
}
.result-grid small { color: var(--muted); display: block; margin-bottom: 6px; }
.result-grid strong { color: var(--gold-bright); font-size: 1.25rem; }

.mytake { padding-top: 68px; }
.article-copy .lead { color: var(--text); font-size: 1.1rem; }

.source-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 18px;
  margin: 8px 0 70px;
}
.source-strip .eyebrow { margin: 0 12px 0 0; }
.source-strip a { color: var(--muted); }
.source-strip a:hover { color: var(--accent); border-color: var(--line-strong); }

.cta-section {
  text-align: center;
  padding: clamp(42px, 8vw, 86px) 28px;
  margin: 30px 0 64px;
  background:
    radial-gradient(circle at 50% 20%, rgba(124,243,221,0.15), transparent 36%),
    radial-gradient(circle at 18% 72%, rgba(220,184,106,0.13), transparent 28%),
    var(--panel);
}
.cta-section h2 { max-width: 850px; margin: 0 auto; }
.cta-section p { max-width: 720px; margin: 22px auto 0; }
.brand-line { color: var(--gold-bright) !important; }
.contact-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 24px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 30px 0 50px;
  color: var(--muted);
  font-size: .92rem;
  border-top: 1px solid var(--line);
}

.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease;
}
.contact-modal.open { opacity: 1; pointer-events: auto; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(10px);
}
.modal-panel {
  position: relative;
  width: min(560px, calc(100% - 36px));
  margin: min(10vh, 80px) auto;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background:
    radial-gradient(circle at 80% 10%, rgba(124,243,221,0.14), transparent 38%),
    #07111d;
  box-shadow: 0 40px 120px rgba(0,0,0,0.58);
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255,255,255,0.05);
  font-size: 1.5rem;
}
.modal-panel h2 { font-size: clamp(2rem, 5vw, 3.6rem); }
.modal-panel p:not(.eyebrow) { color: var(--muted); line-height: 1.7; }
.modal-options { display: grid; gap: 10px; margin-top: 22px; }
.modal-options a {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,0.045);
}
.modal-options a:hover { border-color: var(--line-strong); }
.modal-options strong { color: var(--gold-bright); }
.modal-options span { color: var(--muted); }

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .72s ease, transform .72s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1020px) {
  .site-header { border-radius: 28px; align-items: flex-start; flex-wrap: wrap; }
  .nav-links { order: 3; width: 100%; justify-content: space-between; gap: 10px; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-visual { min-height: 460px; }
  .brand-module { grid-template-columns: 210px 1fr; }
  .brand-cta { grid-column: 1 / -1; justify-self: start; }
  .signal-grid, .detail-grid, .caution-grid { grid-template-columns: 1fr 1fr; }
  .audience-grid { grid-template-columns: 1fr 1fr; }
  .split-section, .split-section.reverse, .estimate-section { grid-template-columns: 1fr; }
  .split-section.reverse .article-copy,
  .split-section.reverse .stats-card { grid-column: auto; grid-row: auto; }
  .site-footer { flex-direction: column; }
}

@media (max-width: 720px) {
  .site-shell { width: min(100% - 24px, var(--max)); }
  .site-header { margin-top: 12px; }
  .brand-mark span:last-child { max-width: 170px; overflow: hidden; text-overflow: ellipsis; }
  .nav-links { font-size: .82rem; overflow-x: auto; padding-bottom: 4px; }
  .lang-btn { padding: 7px 10px; }
  .section-pad { padding: 54px 0; }
  .hero { gap: 28px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
  .metrics, .signal-grid, .detail-grid, .audience-grid, .caution-grid, .result-grid { grid-template-columns: 1fr; }
  .metric-card { padding: 18px; }
  .hero-visual { min-height: 390px; border-radius: 24px; }
  .hero-float-card { position: relative; width: calc(100% - 28px); left: auto !important; right: auto !important; top: auto !important; bottom: auto !important; margin: 8px auto; }
  #signalSphere { max-width: 340px; }
  .brand-module { grid-template-columns: 1fr; padding: 18px; }
  .brand-video-wrap { height: 220px; }
  .brand-contact-list a, .source-strip a, .contact-links a { width: 100%; justify-content: center; }
  .hero-panel, .article-copy, .estimate-section, .cta-section { padding: 24px; }
  .split-section { padding: 52px 0; }
  .source-strip { align-items: stretch; }
  .source-strip .eyebrow { width: 100%; margin: 0 0 8px; }
  .modal-options a { flex-direction: column; }
}