:root {
  --ink: #07152b;
  --ink-soft: #0d2341;
  --paper: #f5efe3;
  --paper-dim: #c8c4bb;
  --amber: #f4ad2f;
  --coral: #f06a45;
  --teal: #3e9a95;
  --slate: #aab5c8;
  --line: rgba(245, 239, 227, 0.16);
  --line-dark: rgba(7, 21, 43, 0.14);
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --container: 1240px;
  --radius: 12px;
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--ink);
  color: var(--paper);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--paper);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  opacity: 0.36;
  background-image: linear-gradient(rgba(245, 239, 227, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(245, 239, 227, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

::selection { background: var(--amber); color: var(--ink); }

a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 5px;
}

.skip-link {
  position: fixed;
  z-index: 50;
  top: 16px;
  left: 16px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--amber);
  color: var(--ink);
  transform: translateY(-160%);
  transition: transform 160ms var(--ease-out);
}

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

.container {
  width: min(var(--container), calc(100% - 64px));
  margin-inline: auto;
}

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  right: 0;
  left: 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-lockup img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.brand-copy { display: grid; gap: 1px; }
.brand-copy strong { font-size: 19px; font-weight: 600; letter-spacing: 0.08em; line-height: 1.2; }
.brand-copy small { color: var(--slate); font-size: 9px; letter-spacing: 0.16em; line-height: 1.4; }

.main-nav { display: flex; align-items: center; gap: 34px; color: var(--slate); font-size: 13px; }
.main-nav a { transition: color 160ms var(--ease-out); }
.main-nav a:hover { color: var(--paper); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border: 1px solid rgba(244, 173, 47, 0.65);
  border-radius: 999px;
  background: transparent;
  color: var(--paper);
  cursor: pointer;
  transition: background-color 160ms var(--ease-out), color 160ms var(--ease-out), transform 160ms var(--ease-out);
}

.nav-cta:hover { background: var(--amber); color: var(--ink); }
.nav-cta:active, .button:active { transform: scale(0.97); }

.menu-toggle { display: none; }

.hero-section {
  position: relative;
  min-height: max(720px, 100svh);
  padding: 174px 0 76px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  align-items: center;
  min-height: 612px;
}

.hero-copy { position: relative; z-index: 2; padding-bottom: 24px; }
.eyebrow, .section-kicker { margin: 0 0 26px; color: var(--amber); font-size: 11px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; }
.eyebrow span { margin-inline: 7px; color: var(--coral); }

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

h1 {
  max-width: 8ch;
  margin-bottom: 30px;
  color: var(--paper);
  font-size: clamp(52px, 6.2vw, 98px);
  font-weight: 600;
  letter-spacing: -0.065em;
  line-height: 1.02;
}

h1 span { color: var(--amber); }

.hero-description {
  max-width: 25em;
  margin-bottom: 38px;
  color: var(--slate);
  font-size: clamp(16px, 1.45vw, 20px);
  line-height: 1.8;
}

.hero-actions { display: flex; align-items: center; gap: 28px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  min-width: 160px;
  padding: 16px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  transition: background-color 160ms var(--ease-out), border-color 160ms var(--ease-out), color 160ms var(--ease-out), transform 160ms var(--ease-out);
}

.button-primary { background: var(--amber); color: var(--ink); }
.button-primary:hover { background: #ffc45a; }
.button-light { background: var(--paper); color: var(--ink); }
.button-light:hover { background: var(--amber); }

.text-link, .arrow-link { display: inline-flex; align-items: center; gap: 12px; color: var(--paper-dim); font-size: 14px; transition: color 160ms var(--ease-out), gap 160ms var(--ease-out); }
.text-link { border-bottom: 1px solid rgba(245, 239, 227, 0.42); padding-bottom: 4px; }
.text-link:hover, .arrow-link:hover { gap: 16px; color: var(--amber); }

.hero-footnote { display: flex; align-items: center; gap: 9px; margin-top: 68px; color: rgba(245, 239, 227, 0.52); font-size: 12px; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 4px rgba(240, 106, 69, 0.14); }

.hero-media { position: relative; min-height: 620px; }
.media-glow { position: absolute; z-index: -1; top: 16%; right: -6%; width: 74%; height: 62%; border-radius: 50%; background: rgba(240, 106, 69, 0.2); filter: blur(68px); }
.hero-tv { position: absolute; top: 50%; right: -9%; width: 122%; max-width: none; height: auto; transform: translateY(-50%); filter: drop-shadow(0 32px 32px rgba(0, 0, 0, 0.24)); }
.media-index { position: absolute; z-index: 1; top: 6%; left: 6%; color: var(--slate); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; letter-spacing: 0.14em; }
.media-caption { position: absolute; z-index: 1; right: 2%; bottom: 6%; display: grid; gap: 2px; color: var(--paper); font-size: 12px; text-align: right; }
.media-caption span:last-child { color: var(--slate); }

.hero-scroll { display: flex; align-items: center; gap: 16px; margin-top: 22px; color: rgba(245, 239, 227, 0.48); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; }
.scroll-line { width: 84px; height: 1px; background: var(--line); }

.manifesto-section { padding: 156px 0 140px; }
.manifesto-grid { display: grid; grid-template-columns: 1fr minmax(280px, 0.53fr); gap: 80px; align-items: end; }
.manifesto-grid h2, .section-head h2, .brand-stage h2 { margin-bottom: 0; color: var(--paper); font-size: clamp(36px, 4.4vw, 68px); font-weight: 500; letter-spacing: -0.06em; line-height: 1.12; }
.manifesto-grid h2 em { color: var(--coral); font-style: normal; }
.manifesto-aside { max-width: 360px; padding-bottom: 6px; }
.manifesto-aside p, .section-head > p, .brand-stage-copy > p, .closing-action p { margin-bottom: 26px; color: var(--slate); font-size: 16px; line-height: 1.85; }
.arrow-link { color: var(--amber); }
.manifesto-rule { width: 100%; height: 1px; margin-top: 84px; background: var(--line); }

.features-section { padding: 126px 0 160px; background: var(--paper); color: var(--ink); }
.features-section .section-kicker { color: var(--coral); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 64px; margin-bottom: 86px; }
.section-head h2 { color: var(--ink); }
.section-head > p { max-width: 330px; margin-bottom: 4px; color: rgba(7, 21, 43, 0.63); }

.feature-rail { border-top: 1px solid var(--line-dark); }
.feature-item { display: grid; grid-template-columns: 72px 120px minmax(0, 1fr) 34px; align-items: center; gap: 26px; min-height: 178px; border-bottom: 1px solid var(--line-dark); }
.feature-number { align-self: start; padding-top: 26px; color: rgba(7, 21, 43, 0.42); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.feature-mark { position: relative; display: block; width: 92px; height: 92px; }
.feature-mark i { position: absolute; display: block; background: var(--ink); }
.mark-screen { border: 1px solid rgba(7, 21, 43, 0.4); border-radius: 16px; }
.mark-screen i:nth-child(1) { top: 24px; left: 20px; width: 52px; height: 36px; border-radius: 7px; background: var(--coral); }
.mark-screen i:nth-child(2) { top: 64px; left: 43px; width: 7px; height: 16px; }
.mark-screen i:nth-child(3) { top: 79px; left: 32px; width: 30px; height: 4px; border-radius: 5px; }
.mark-stack i { width: 58px; height: 58px; border: 1px solid var(--ink); border-radius: 14px; }
.mark-stack i:nth-child(1) { top: 0; left: 20px; background: var(--amber); }
.mark-stack i:nth-child(2) { top: 17px; left: 8px; background: var(--teal); }
.mark-stack i:nth-child(3) { top: 34px; left: 32px; background: var(--coral); }
.mark-orbit { border: 1px solid var(--ink); border-radius: 50%; }
.mark-orbit i { width: 21px; height: 21px; border-radius: 50%; }
.mark-orbit i:nth-child(1) { top: 7px; left: 34px; background: var(--coral); }
.mark-orbit i:nth-child(2) { right: 9px; bottom: 14px; background: var(--teal); }
.mark-orbit i:nth-child(3) { bottom: 7px; left: 14px; background: var(--amber); }
.feature-content h3 { margin-bottom: 9px; color: var(--ink); font-size: 24px; font-weight: 600; letter-spacing: -0.04em; }
.feature-content p { max-width: 520px; margin-bottom: 0; color: rgba(7, 21, 43, 0.62); font-size: 15px; line-height: 1.8; }
.feature-arrow { color: var(--coral); font-size: 24px; transition: transform 180ms var(--ease-out); }

.brand-section { padding: 148px 0 160px; }
.brand-stage { display: grid; grid-template-columns: 0.88fr 1.12fr; gap: 80px; align-items: center; }
.brand-stage-copy { max-width: 440px; }
.brand-stage-copy .section-kicker { color: var(--amber); }
.brand-stage-copy > p { margin-top: 30px; }
.brand-stage-mark { position: relative; display: grid; min-height: 460px; place-items: center; overflow: hidden; }
.brand-stage-mark img { position: relative; z-index: 1; width: min(62%, 350px); height: auto; object-fit: contain; filter: drop-shadow(0 28px 34px rgba(0, 0, 0, 0.26)); }
.brand-stage-mark > span { position: absolute; right: 3%; bottom: 6%; color: var(--slate); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; letter-spacing: 0.12em; }
.brand-orbit { position: absolute; width: min(80%, 470px); aspect-ratio: 1; border: 1px solid rgba(244, 173, 47, 0.32); border-radius: 50%; box-shadow: 0 0 0 28px rgba(244, 173, 47, 0.04), 0 0 0 62px rgba(240, 106, 69, 0.03); }
.brand-orbit::before, .brand-orbit::after { content: ""; position: absolute; width: 8px; height: 8px; border-radius: 50%; background: var(--amber); }
.brand-orbit::before { top: 9%; right: 17%; }
.brand-orbit::after { bottom: 20%; left: 10%; background: var(--coral); }

.closing-section { padding: 140px 0 148px; background: var(--coral); color: var(--ink); }
.closing-grid { display: grid; grid-template-columns: 1fr minmax(260px, 0.55fr); gap: 80px; align-items: end; }
.section-kicker-light { color: rgba(7, 21, 43, 0.64); }
.closing-section h2 { margin-bottom: 0; color: var(--ink); font-size: clamp(42px, 5.6vw, 84px); font-weight: 500; letter-spacing: -0.065em; line-height: 1.08; }
.closing-section h2 span { color: var(--paper); }
.closing-action { max-width: 320px; }
.closing-action p { color: rgba(7, 21, 43, 0.68); }

.site-footer { background: var(--coral); color: rgba(7, 21, 43, 0.65); }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; padding: 20px 0 28px; border-top: 1px solid rgba(7, 21, 43, 0.22); font-size: 11px; }

.toast { position: fixed; z-index: 30; right: 24px; bottom: 24px; max-width: min(320px, calc(100% - 48px)); padding: 14px 18px; border: 1px solid rgba(245, 239, 227, 0.18); border-radius: 10px; background: var(--ink-soft); color: var(--paper); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25); opacity: 0; transform: translateY(16px); pointer-events: none; transition: opacity 220ms var(--ease-out), transform 220ms var(--ease-out); font-size: 13px; }
.toast.is-visible { opacity: 1; transform: translateY(0); }

.reveal { opacity: 0; transform: translateY(18px); animation: reveal-in 700ms var(--ease-out) forwards; }
.reveal-delay-1 { animation-delay: 80ms; }
.reveal-delay-2 { animation-delay: 150ms; }
.reveal-delay-3 { animation-delay: 220ms; }
.reveal-delay-4 { animation-delay: 290ms; }
@keyframes reveal-in { to { opacity: 1; transform: translateY(0); } }

@media (hover: hover) and (pointer: fine) {
  .feature-item:hover .feature-arrow { transform: translate(5px, -5px); }
  .feature-item:hover .feature-mark { transform: translateY(-3px); }
  .feature-mark { transition: transform 180ms var(--ease-out); }
}

@media (max-width: 900px) {
  .container { width: min(var(--container), calc(100% - 40px)); }
  .main-nav { gap: 18px; }
  .hero-section { padding-top: 138px; }
  .hero-grid { grid-template-columns: 0.9fr 1.1fr; }
  .hero-tv { right: -18%; width: 135%; }
  .manifesto-grid, .brand-stage, .closing-grid { gap: 48px; }
  .feature-item { grid-template-columns: 56px 100px minmax(0, 1fr) 24px; gap: 18px; }
}

@media (max-width: 720px) {
  .container { width: min(var(--container), calc(100% - 36px)); }
  .site-header { position: absolute; }
  .header-inner { min-height: 78px; }
  .brand-lockup img { width: 42px; height: 42px; }
  .brand-copy strong { font-size: 17px; }
  .brand-copy small { font-size: 8px; }
  .menu-toggle { display: grid; place-content: center; gap: 5px; width: 42px; height: 42px; border: 1px solid rgba(245, 239, 227, 0.26); border-radius: 50%; background: transparent; color: var(--paper); cursor: pointer; }
  .menu-toggle span { display: block; width: 14px; height: 1px; background: currentColor; transition: transform 180ms var(--ease-out); }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }
  .main-nav { position: absolute; top: 70px; right: 18px; left: 18px; display: grid; gap: 0; padding: 8px; border: 1px solid rgba(245, 239, 227, 0.18); border-radius: 14px; background: rgba(13, 35, 65, 0.98); opacity: 0; transform: translateY(-8px); pointer-events: none; transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out); }
  .main-nav.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .main-nav a, .nav-cta { width: 100%; padding: 13px 14px; }
  .main-nav a { border-bottom: 1px solid rgba(245, 239, 227, 0.08); }
  .nav-cta { justify-content: space-between; margin-top: 8px; border-radius: 8px; background: var(--amber); color: var(--ink); }
  .hero-section { min-height: auto; padding: 128px 0 56px; }
  .hero-grid { display: block; min-height: auto; }
  .hero-copy { padding-bottom: 0; }
  h1 { max-width: 7.5ch; margin-bottom: 22px; font-size: clamp(52px, 15vw, 78px); }
  .hero-description { max-width: 21em; margin-bottom: 28px; font-size: 16px; }
  .hero-footnote { margin-top: 42px; }
  .hero-media { min-height: 330px; margin: 22px -18px 0; }
  .hero-tv { top: 51%; right: -17%; width: 122%; }
  .media-index { top: 9%; left: 9%; }
  .media-caption { right: 6%; bottom: 6%; }
  .hero-scroll { margin-top: 14px; }
  .manifesto-section { padding: 100px 0 98px; }
  .manifesto-grid, .brand-stage, .closing-grid { display: block; }
  .manifesto-grid h2, .section-head h2, .brand-stage h2 { font-size: clamp(36px, 11vw, 56px); }
  .manifesto-aside { margin-top: 38px; }
  .manifesto-rule { margin-top: 58px; }
  .features-section { padding: 92px 0 100px; }
  .section-head { display: block; margin-bottom: 54px; }
  .section-head > p { max-width: 29em; margin-top: 28px; }
  .feature-item { grid-template-columns: 38px 74px minmax(0, 1fr); gap: 12px; min-height: 154px; }
  .feature-mark { transform: scale(0.76); transform-origin: left center; }
  .feature-content h3 { font-size: 20px; }
  .feature-content p { font-size: 14px; line-height: 1.7; }
  .feature-arrow { display: none; }
  .brand-section { padding: 100px 0 102px; }
  .brand-stage-copy > p { margin-top: 26px; }
  .brand-stage-mark { min-height: 360px; margin-top: 42px; }
  .brand-stage-mark img { width: min(70%, 280px); }
  .closing-section { padding: 96px 0 88px; }
  .closing-action { margin-top: 38px; }
  .footer-inner { display: grid; gap: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; }
  .reveal { opacity: 1; transform: none; }
}