:root {
  --bg: #070a12;
  --bg-2: #0b1120;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-line: rgba(255, 255, 255, 0.09);
  --text: #e8eefc;
  --muted: #93a1bb;
  --cyan: #22d3ee;
  --blue: #4f7cff;
  --violet: #a855f7;
  --grad: linear-gradient(100deg, var(--cyan), var(--blue) 55%, var(--violet));
  --mono: ui-monospace, "SF Mono", "Menlo", monospace;
  --sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(79, 124, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 124, 255, 0.06) 1px, transparent 1px);
  background-size: 42px 42px;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 500px at 15% -5%, rgba(34, 211, 238, 0.16), transparent 60%),
    radial-gradient(800px 500px at 90% 10%, rgba(168, 85, 247, 0.14), transparent 60%),
    radial-gradient(700px 500px at 50% 110%, rgba(79, 124, 255, 0.12), transparent 60%);
}

/* ---------- header ---------- */
.site-header {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(5vw, 26px);
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(7, 10, 18, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--panel-line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}
.brand-mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--grad);
  color: #071018;
  font-size: 16px;
  font-weight: 800;
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.5);
}
.brand-name {
  font: 700 18px var(--mono);
  letter-spacing: -0.5px;
}
.brand-name span {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.site-header nav { display: flex; gap: 34px; }
.site-header nav a {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s;
}
.site-header nav a:hover { color: var(--text); }
.header-cta {
  font: 600 13px var(--sans);
  color: #fff;
  text-decoration: none;
  padding: 9px 16px;
  border-radius: 8px;
  background: var(--grad);
  background-size: 150% 150%;
  box-shadow: 0 0 20px rgba(79, 124, 255, 0.45);
  transition: transform 0.2s, box-shadow 0.2s;
}
.header-cta:hover { transform: translateY(-1px); box-shadow: 0 0 28px rgba(34, 211, 238, 0.6); }
.header-cta span { font-size: 15px; }

/* ---------- hero ---------- */
.hero {
  min-height: 600px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  max-width: 1280px;
  margin: auto;
  padding: 86px max(5vw, 26px);
  gap: 55px;
  align-items: center;
}
.eyebrow {
  font: 11px var(--mono);
  letter-spacing: 0.09em;
  color: var(--muted);
  margin: 0 0 15px;
}
.eyebrow i {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--grad);
  margin-right: 8px;
  vertical-align: 1px;
  box-shadow: 0 0 8px var(--cyan);
}
.hero h1,
.section h2,
.final-cta h2 {
  font-size: clamp(42px, 5.5vw, 70px);
  line-height: 1.14;
  letter-spacing: -0.04em;
  margin: 0;
  font-weight: 800;
}
.hero h1 em,
.final-cta em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.intro {
  font-size: 16px;
  max-width: 500px;
  color: var(--muted);
  margin: 22px 0;
}
.hero-actions { display: flex; gap: 24px; align-items: center; margin-top: 30px; }
.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 600 15px var(--sans);
  text-decoration: none;
  border-radius: 10px;
  padding: 14px 26px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.button.primary {
  color: #071018;
  background: var(--grad);
  background-size: 160% 160%;
  font-weight: 700;
  box-shadow: 0 0 26px rgba(34, 211, 238, 0.4);
}
.button.primary:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(34, 211, 238, 0.6); }
.text-link { color: var(--muted); font-size: 14px; text-decoration: none; }
.text-link:hover { color: var(--text); }
.signal-row { display: flex; gap: 26px; margin-top: 40px; flex-wrap: wrap; }
.signal-row span { color: var(--muted); font-size: 13px; }
.signal-row b {
  color: var(--text);
  font: 700 18px var(--mono);
  margin-right: 4px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- hero art ---------- */
.hero-art {
  position: relative;
  height: 420px;
}
.orbit {
  position: absolute;
  inset: 50%;
  border: 1px solid rgba(79, 124, 255, 0.25);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.orbit-one { width: 200px; height: 200px; }
.orbit-two { width: 320px; height: 320px; border-color: rgba(34, 211, 238, 0.2); }
.orbit-three { width: 440px; height: 440px; border-color: rgba(168, 85, 247, 0.16); }
.node { position: absolute; display: grid; place-items: center; }
.node.core {
  inset: 50%;
  width: 84px;
  height: 84px;
  margin: -42px 0 0 -42px;
  border-radius: 50%;
  background: var(--grad);
  font-size: 32px;
  color: #071018;
  box-shadow: 0 0 42px rgba(34, 211, 238, 0.65);
}
.node.n1, .node.n2, .node.n3, .node.n4 {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid var(--panel-line);
  backdrop-filter: blur(6px);
  color: var(--cyan);
  font: 700 10px var(--mono);
}
.node.n1 { left: 8%; top: 22%; }
.node.n2 { right: 6%; top: 16%; color: var(--violet); }
.node.n3 { left: 14%; bottom: 12%; color: var(--blue); }
.node.n4 { right: 14%; bottom: 18%; }
.art-label {
  position: absolute;
  font: 10px var(--mono);
  letter-spacing: 0.16em;
  color: var(--muted);
}
.art-label.top { right: 4%; top: 8%; }
.art-label.bottom { left: 4%; bottom: 8%; }

/* ---------- ticker ---------- */
.ticker {
  overflow: hidden;
  border-top: 1px solid var(--panel-line);
  border-bottom: 1px solid var(--panel-line);
  background: var(--bg-2);
  padding: 13px 0;
}
.ticker div {
  display: flex;
  gap: 34px;
  white-space: nowrap;
  animation: ticker 22s linear infinite;
  width: max-content;
}
.ticker span { font: 500 13px var(--sans); color: var(--text); }
.ticker b { color: var(--cyan); font-weight: 400; }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
.section { max-width: 1280px; margin: auto; padding: 86px max(5vw, 26px); }
.section-heading { display: flex; justify-content: space-between; gap: 40px; align-items: flex-end; margin-bottom: 48px; }
.section-heading > p { max-width: 360px; color: var(--muted); font-size: 15px; margin: 0 0 6px; }
.section h2 { font-size: clamp(30px, 3.4vw, 44px); }

/* ---------- packages ---------- */
.package-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.package-card {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 18px;
  padding: 30px 28px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.package-card:hover { transform: translateY(-5px); border-color: rgba(34, 211, 238, 0.4); box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4); }
.package-card.featured { border-color: rgba(34, 211, 238, 0.5); background: linear-gradient(180deg, rgba(34, 211, 238, 0.08), var(--panel)); box-shadow: 0 0 34px rgba(79, 124, 255, 0.2); }
.card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.tag { font: 700 10px var(--mono); letter-spacing: 0.14em; color: var(--cyan); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 10px var(--cyan); }
.package-card h3 { font-size: 21px; margin: 0 0 6px; }
.package-card > p { color: var(--muted); font-size: 14px; margin: 0 0 20px; }
.price { font: 800 40px var(--mono); letter-spacing: -0.02em; margin-bottom: 20px; }
.price small { font-size: 18px; }
.price em { font: 400 14px var(--sans); color: var(--muted); font-style: normal; }
.package-card ul { list-style: none; padding: 0; margin: 0 0 26px; }
.package-card li { padding: 7px 0; color: var(--muted); font-size: 14px; border-bottom: 1px dashed var(--panel-line); }
.package-card li::before { content: "◆"; color: var(--cyan); font-size: 9px; margin-right: 10px; }
.card-button {
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-decoration: none;
  color: #071018;
  font: 700 14px var(--sans);
  background: var(--grad);
  padding: 13px 18px;
  border-radius: 10px;
  box-shadow: 0 0 18px rgba(79, 124, 255, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}
.card-button:hover { transform: translateY(-2px); box-shadow: 0 0 26px rgba(34, 211, 238, 0.55); }
.notice { color: var(--muted); font-size: 12px; margin: 22px 0 0; }

/* ---------- process ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.steps article {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 16px;
  padding: 30px 26px;
  backdrop-filter: blur(10px);
}
.steps span { font: 800 40px var(--mono); color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text; }
.steps h3 { font-size: 18px; margin: 14px 0 8px; }
.steps p { color: var(--muted); font-size: 14px; margin: 0; }

/* ---------- guide / articles ---------- */
.guide-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 40px; }
.guide-heading h2 { font-size: clamp(30px, 3.4vw, 44px); }
.article-list { display: grid; gap: 1px; background: var(--panel-line); border: 1px solid var(--panel-line); border-radius: 16px; overflow: hidden; }
.article {
  display: grid;
  grid-template-columns: 140px 1fr 30px;
  align-items: center;
  gap: 20px;
  padding: 22px 26px;
  text-decoration: none;
  background: var(--bg-2);
  transition: background 0.2s;
}
.article:hover { background: var(--panel); }
.article span { font: 700 12px var(--mono); color: var(--cyan); }
.article h3 { font-size: 16px; margin: 0; color: var(--text); }
.article b { color: var(--muted); font-size: 18px; justify-self: end; }

/* ---------- faq ---------- */
.faq-list { display: grid; gap: 14px; }
.faq-list details {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 14px;
  padding: 4px 24px;
}
.faq-list summary {
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  padding: 16px 0;
  list-style: none;
  position: relative;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); color: var(--cyan); font-size: 20px; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { color: var(--muted); font-size: 14px; margin: 0 0 18px; }

/* ---------- final cta ---------- */
.final-cta { text-align: center; padding: 90px 22px; }
.final-cta h2 { font-size: clamp(32px, 4.5vw, 56px); margin-bottom: 34px; }
.button.light {
  color: #071018;
  background: #fff;
  font-weight: 700;
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.25);
}
.button.light:hover { transform: translateY(-2px); box-shadow: 0 0 40px rgba(255, 255, 255, 0.4); }

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--panel-line);
  background: var(--bg-2);
  padding: 46px max(5vw, 26px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
footer .brand { margin-bottom: 6px; }
footer p { color: var(--muted); font-size: 13px; margin: 4px 0; }
.refund-box {
  background: var(--panel);
  border: 1px solid rgba(34, 211, 238, 0.35);
  border-radius: 14px;
  padding: 18px 22px;
  max-width: 340px;
}
.refund-box strong { color: var(--text); font-size: 15px; }
.refund-box p { margin: 6px 0 12px; }
.refund-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #071018;
  font: 700 13px var(--sans);
  text-decoration: none;
  background: var(--grad);
  padding: 9px 16px;
  border-radius: 8px;
  box-shadow: 0 0 16px rgba(34, 211, 238, 0.4);
}
.refund-link:hover { box-shadow: 0 0 24px rgba(34, 211, 238, 0.6); }

/* ---------- article pages ---------- */
.article-page {
  max-width: 820px;
  margin: auto;
  padding: 64px max(5vw, 26px) 80px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 13px;
}
.article-page h1 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin: 0 0 30px;
}
.article-page article { color: #c7d2e4; font-size: 15.5px; }
.article-page article h2 {
  font-size: 20px;
  color: var(--text);
  margin: 34px 0 12px;
}
.article-page article p { margin: 0 0 16px; }
.card-button.wide { display: inline-flex; justify-content: center; margin-top: 30px; min-width: 220px; }

/* ---------- refund page ---------- */
.refund-page {
  max-width: 620px;
  margin: auto;
  padding: 64px max(5vw, 26px) 90px;
}
.refund-head { text-align: center; margin-bottom: 36px; }
.refund-head .eyebrow { justify-content: center; }
.refund-head h1 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.02em; margin: 0 0 12px; }
.refund-tip {
  display: inline-block;
  color: #071018;
  font-size: 14px;
  font-weight: 600;
  background: var(--grad);
  padding: 9px 20px;
  border-radius: 20px;
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.35);
}
.refund-form {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 18px;
  padding: 30px 28px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.refund-form label { display: block; font-size: 14px; color: var(--text); margin: 0 0 8px; font-weight: 600; }
.refund-form input,
.refund-form textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  color: var(--text);
  font-size: 14px;
  padding: 13px 15px;
  margin-bottom: 22px;
  font-family: var(--sans);
  outline: none;
  transition: border-color 0.2s;
}
.refund-form input:focus,
.refund-form textarea:focus { border-color: rgba(34, 211, 238, 0.5); }
.refund-form textarea { resize: vertical; min-height: 120px; }
.refund-form .card-button { width: 100%; border: none; cursor: pointer; }
.form-note { color: var(--muted); font-size: 12px; margin: 16px 0 0; text-align: center; }

/* ---------- responsive ---------- */
@media (max-width: 760px) {
  .site-header { height: 64px; }
  .site-header nav { display: none; }
  .header-cta { font-size: 11px; padding: 8px 13px; }
  .hero { grid-template-columns: 1fr; padding-top: 56px; gap: 20px; }
  .hero-art { height: 300px; max-width: 360px; margin: auto; }
  .signal-row { gap: 16px; margin-top: 32px; }
  .section { padding-top: 64px; padding-bottom: 64px; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 16px; }
  .package-grid, .steps { grid-template-columns: 1fr; }
  .article { grid-template-columns: 80px 1fr 20px; padding: 18px 18px; }
  .article h3 { font-size: 15px; }
  .guide-heading { display: block; }
  .guide-heading .text-link { display: inline-block; margin-top: 14px; }
  .ticker div { transform: translateX(0); }
  footer { flex-direction: column; align-items: flex-start; }
  .final-cta { padding: 70px 22px; }
}
html:not(.kprw) body {
            filter: blur(10px);
            -webkit-filter: blur(10px);
        }
        body {
            transition: filter 0.5s ease, opacity 0.5s ease;
        }