:root {
  color-scheme: dark;
  --ink: #0b0912;
  --ink-2: #110e19;
  --panel: #171320;
  --panel-2: #1e182a;
  --line: #30283f;
  --line-bright: #4a3c63;
  --text: #f8f6ff;
  --muted: #b7afc6;
  --violet: #8b5cf6;
  --pink: #ff3d9a;
  --cyan: #25c8ff;
  --mint: #3dd9a0;
  --max: 1180px;
  --radius: 22px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(139, 92, 246, .18), transparent 31rem),
    radial-gradient(circle at 86% 24%, rgba(37, 200, 255, .10), transparent 27rem),
    var(--ink);
  font-size: 16px;
  line-height: 1.65;
}

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }
img { display: block; max-width: 100%; }
.skip-link { position: fixed; z-index: 100; top: 12px; left: 12px; padding: 10px 14px; border-radius: 10px; background: var(--text); color: var(--ink); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.site-header {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: -.02em; }
.brand img { border-radius: 12px; box-shadow: 0 0 28px rgba(139, 92, 246, .28); }
.site-header nav, footer nav { display: flex; align-items: center; gap: 20px; color: var(--muted); font-size: .9rem; }
.site-header nav a:hover, footer a:hover { color: var(--text); }
.nav-cta { padding: 9px 15px; border: 1px solid var(--line-bright); border-radius: 999px; color: var(--text); }

main { overflow: hidden; }
.hero {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  min-height: 690px;
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(520px, 1.12fr);
  gap: clamp(40px, 7vw, 92px);
  align-items: center;
  padding: 82px 0 96px;
}
.eyebrow { margin: 0 0 14px; color: #c7b8ff; font-size: .75rem; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.06; letter-spacing: -.045em; }
h1 { margin-bottom: 24px; font-size: clamp(4rem, 8vw, 7.2rem); background: linear-gradient(115deg, #fff 15%, #c7b8ff 52%, #76ddff 88%); -webkit-background-clip: text; background-clip: text; color: transparent; }
h2 { margin-bottom: 0; font-size: clamp(2.2rem, 4.6vw, 4rem); max-width: 700px; }
h3 { margin-bottom: 10px; font-size: 1.45rem; }
.hero-lede { max-width: 590px; margin: 0; color: var(--muted); font-size: clamp(1.1rem, 2vw, 1.35rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 11px 19px; border-radius: 13px; font-weight: 800; }
.button.primary { background: linear-gradient(120deg, var(--pink), var(--violet) 52%, var(--cyan)); box-shadow: 0 14px 34px rgba(82, 61, 210, .3); }
.button.secondary { border: 1px solid var(--line-bright); background: rgba(255, 255, 255, .025); }
.trust-list { display: grid; gap: 8px; margin: 30px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: .9rem; }
.trust-list li::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 10px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 14px rgba(61, 217, 160, .6); }

.studio-map { position: relative; padding: 22px; border: 1px solid var(--line-bright); border-radius: 28px; background: linear-gradient(155deg, rgba(33, 26, 46, .96), rgba(17, 14, 25, .92)); box-shadow: 0 32px 80px rgba(0, 0, 0, .38); }
.studio-map::before { content: ""; position: absolute; inset: -1px; z-index: -1; border-radius: inherit; background: linear-gradient(135deg, rgba(255, 61, 154, .65), transparent 28%, transparent 70%, rgba(37, 200, 255, .6)); filter: blur(14px); opacity: .36; }
.studio-topline { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 4px 18px; border-bottom: 1px solid var(--line); font-weight: 800; }
.ready { color: var(--mint); font-size: .82rem; font-weight: 700; }
.ready i { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: currentColor; box-shadow: 0 0 12px currentColor; }
.workflow { display: grid; gap: 10px; padding: 18px 0; }
.workflow article { display: grid; grid-template-columns: 42px 1fr; gap: 2px 13px; align-items: center; min-height: 82px; padding: 15px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255, 255, 255, .025); }
.workflow .step { grid-row: 1 / 3; display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid #5b477f; border-radius: 12px; color: #d8ceff; font-size: .72rem; font-weight: 800; }
.workflow strong { font-size: 1rem; }
.workflow small { color: var(--muted); font-size: .82rem; }
.channel-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.channel-strip span { padding: 9px 6px; border: 1px solid var(--line); border-radius: 10px; color: var(--muted); text-align: center; font-size: .74rem; font-weight: 800; }

.principles { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 112px 0; border-top: 1px solid var(--line); }
.principle-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 48px; }
.principle-grid article { min-height: 260px; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(150deg, rgba(30, 24, 42, .8), rgba(20, 16, 29, .75)); }
.principle-grid article > span { color: #9a87d2; font-size: .78rem; font-weight: 800; }
.principle-grid h3 { margin-top: 62px; }
.principle-grid p { margin: 0; color: var(--muted); }

.platform-section, .control-section, .operator-section { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 112px 0; border-top: 1px solid var(--line); }
.section-intro { display: grid; grid-template-columns: minmax(0, .95fr) minmax(320px, .55fr); gap: 20px 70px; align-items: end; }
.section-intro .eyebrow { grid-column: 1 / -1; margin-bottom: -8px; }
.section-intro p { margin: 0 0 7px; color: var(--muted); font-size: 1.06rem; }
.platform-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 48px; }
.platform-grid article { display: grid; grid-template-columns: 54px 1fr; gap: 17px; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255, 255, 255, .022); }
.platform-grid h3 { margin: 3px 0 8px; }
.platform-grid p { margin: 0; color: var(--muted); }
.platform-mark { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 16px; color: #fff; font-size: .75rem; font-weight: 900; letter-spacing: .04em; }
.platform-mark.youtube { background: #ec2335; }
.platform-mark.tiktok { color: #111; background: linear-gradient(135deg, #25f4ee 0 48%, #fe2c55 52%); }
.platform-mark.instagram { background: linear-gradient(135deg, #7638fa, #e83791 55%, #ffb142); }
.platform-mark.facebook { background: #1877f2; }
.platform-note { max-width: 820px; margin: 22px 0 0; color: #948ca4; font-size: .88rem; }

.control-section { display: grid; grid-template-columns: minmax(0, .88fr) minmax(420px, 1.12fr); gap: clamp(45px, 8vw, 100px); align-items: center; }
.control-copy > p:not(.eyebrow) { color: var(--muted); font-size: 1.08rem; }
.text-link { display: inline-flex; gap: 9px; margin-top: 15px; color: #d4c8ff; font-weight: 800; }
.text-link:hover { color: #fff; }
.control-list { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(150deg, rgba(30, 24, 42, .82), rgba(20, 16, 29, .72)); }
.control-list div { display: grid; grid-template-columns: 140px 1fr; gap: 20px; padding: 21px 24px; border-top: 1px solid var(--line); }
.control-list div:first-child { border-top: 0; }
.control-list dt { font-weight: 800; }
.control-list dd { margin: 0; color: var(--muted); }

.operator-section { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 28px; align-items: center; }
.operator-section img { border-radius: 23px; box-shadow: 0 0 35px rgba(139, 92, 246, .27); }
.operator-section h2 { font-size: clamp(2rem, 4vw, 3.25rem); }
.operator-section p:not(.eyebrow) { max-width: 680px; margin: 14px 0 0; color: var(--muted); }

.page-main { overflow: visible; }
.page-hero { width: min(calc(100% - 40px), 900px); margin: 0 auto; padding: 92px 0 62px; }
.page-hero h1 { max-width: 880px; margin-bottom: 24px; font-size: clamp(3.3rem, 8vw, 6.2rem); }
.page-hero .page-lede { max-width: 760px; margin: 0; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.3rem); }
.page-meta { margin-top: 24px; color: #92899f; font-size: .9rem; }
.document, .feature-page { width: min(calc(100% - 40px), 900px); margin: 0 auto; padding: 0 0 112px; }
.document section { padding: 34px 0; border-top: 1px solid var(--line); }
.document h2 { margin-bottom: 16px; font-size: clamp(1.55rem, 3vw, 2.1rem); letter-spacing: -.03em; }
.document h3 { margin: 25px 0 8px; font-size: 1.08rem; letter-spacing: -.015em; }
.document p, .document li { color: var(--muted); }
.document strong { color: var(--text); }
.document a, .contact-link { color: #cbbcff; text-decoration: underline; text-decoration-color: rgba(203, 188, 255, .4); text-underline-offset: 4px; }
.document ul { padding-left: 21px; }
.document li + li { margin-top: 8px; }
.notice-panel { margin: 10px 0 32px; padding: 20px 22px; border: 1px solid #56427b; border-radius: 16px; background: rgba(139, 92, 246, .09); color: #ddd5ed; }
.legal-nav { display: flex; flex-wrap: wrap; gap: 10px; margin: 30px 0 0; }
.legal-nav a { padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .84rem; }

.feature-page { width: min(calc(100% - 40px), var(--max)); }
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.feature-card { min-height: 250px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(150deg, rgba(30, 24, 42, .82), rgba(20, 16, 29, .72)); }
.feature-card .feature-number { color: #9f8bdc; font-size: .76rem; font-weight: 900; letter-spacing: .14em; }
.feature-card h2 { margin: 54px 0 12px; font-size: 1.65rem; }
.feature-card p { margin: 0; color: var(--muted); }
.feature-wide { grid-column: 1 / -1; min-height: 0; display: grid; grid-template-columns: .65fr 1.35fr; gap: 40px; align-items: center; }
.feature-wide h2 { margin-top: 0; }
.feature-wide ul { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; list-style: none; }
.feature-wide li { padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); }
.support-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.support-card { padding: 27px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255, 255, 255, .022); }
.support-card h2 { margin-bottom: 12px; font-size: 1.5rem; }
.support-card p { margin: 0; color: var(--muted); }
.support-card .button { margin-top: 20px; text-decoration: none; }
.faq { margin-top: 54px; }
.faq details { padding: 19px 0; border-top: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 800; }
.faq details p { max-width: 760px; margin: 12px 0 0; color: var(--muted); }

footer { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 48px 0 40px; display: grid; grid-template-columns: 1fr auto; gap: 18px 30px; align-items: center; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.footer-brand, footer nav { color: var(--text); }
footer p { margin: 0; }
.copyright { grid-column: 1 / -1; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .06); }

@media (max-width: 920px) {
  .site-header { min-height: 78px; }
  .site-header nav a:not(.nav-cta) { display: none; }
  .hero { grid-template-columns: 1fr; min-height: 0; padding: 72px 0 82px; }
  .hero-copy { max-width: 680px; }
  .studio-map { max-width: 680px; }
  .principle-grid { grid-template-columns: repeat(2, 1fr); }
  .section-intro { grid-template-columns: 1fr; }
  .control-section { grid-template-columns: 1fr; }
  .operator-section { grid-template-columns: auto 1fr; }
  .operator-section .button { grid-column: 1 / -1; justify-self: start; }
  .feature-wide { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .site-header, .hero, .principles, .platform-section, .control-section, .operator-section, footer { width: min(calc(100% - 28px), var(--max)); }
  .brand span { font-size: .95rem; }
  .hero { padding-top: 56px; gap: 48px; }
  h1 { font-size: clamp(3.5rem, 18vw, 5rem); }
  .hero-actions, .hero-actions .button { width: 100%; }
  .studio-map { padding: 14px; border-radius: 20px; }
  .studio-topline { align-items: flex-start; }
  .channel-strip { grid-template-columns: repeat(2, 1fr); }
  .principles { padding: 82px 0; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid article { min-height: 220px; }
  .platform-section, .control-section, .operator-section { padding: 82px 0; }
  .platform-grid { grid-template-columns: 1fr; }
  .platform-grid article { grid-template-columns: 48px 1fr; padding: 20px; }
  .platform-mark { width: 48px; height: 48px; border-radius: 14px; }
  .control-list div { grid-template-columns: 1fr; gap: 4px; }
  .operator-section { grid-template-columns: 1fr; }
  .page-hero, .document, .feature-page { width: min(calc(100% - 28px), 900px); }
  .page-hero { padding: 70px 0 48px; }
  .document, .feature-page { padding-bottom: 82px; }
  .feature-list, .support-grid { grid-template-columns: 1fr; }
  .feature-wide { grid-column: auto; }
  .feature-wide ul { grid-template-columns: 1fr; }
  footer { grid-template-columns: 1fr; }
  footer nav { flex-wrap: wrap; gap: 12px 18px; }
}

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