:root {
  font-family: "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #18201f;
  background: #f4f6f2;
  font-synthesis: none;
  --ink: #18201f;
  --muted: #68706c;
  --line: #d8ddd7;
  --paper: #f4f6f2;
  --accent: #2e6655;
  --accent-deep: #1f4c40;
  --dark: #17211f;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); }
a { color: inherit; text-decoration: none; }

.nav-shell { position: sticky; top: 0; z-index: 10; padding: 14px 24px 0; background: linear-gradient(to bottom, rgba(244,246,242,.97) 72%, rgba(244,246,242,0)); }
.nav-bar { max-width: 1400px; min-height: 58px; margin: 0 auto; padding: 0 18px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border: 1px solid rgba(216,221,215,.9); background: rgba(255,255,255,.78); backdrop-filter: blur(18px); box-shadow: inset 0 1px 0 rgba(255,255,255,.8), 0 10px 30px rgba(24,32,31,.05); }
.brand { display: inline-flex; align-items: center; gap: 10px; width: max-content; font-size: 14px; font-weight: 650; }
.brand b { color: var(--accent); font-weight: 700; }
.brand-mark { width: 32px; height: 32px; display: inline-grid; place-items: center; color: #e7f0eb; background: var(--accent); }
.brand-mark svg { width: 22px; height: 22px; }
.nav-status { display: flex; align-items: center; gap: 9px; color: var(--muted); font: 500 11px/1.4 "Courier New", monospace; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #58a87e; animation: breathe 2.8s ease-in-out infinite; }
.nav-link { justify-self: end; color: var(--accent-deep); font-size: 13px; font-weight: 650; }
.nav-link:hover { text-decoration: underline; text-underline-offset: 4px; }

.hero { position: relative; min-height: 700px; overflow: hidden; padding: 126px 24px 0; border-bottom: 1px solid var(--line); }
.hero-grid { position: absolute; inset: 0; pointer-events: none; opacity: .44; background-image: linear-gradient(rgba(46,102,85,.09) 1px, transparent 1px), linear-gradient(90deg, rgba(46,102,85,.09) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to right, #000, transparent 82%); }
.hero-orbit { position: absolute; top: 90px; right: 8vw; width: 270px; aspect-ratio: 1; border: 1px solid rgba(46,102,85,.18); border-radius: 50%; box-shadow: inset 0 0 0 48px var(--paper), inset 0 0 0 49px rgba(46,102,85,.13), inset 0 0 0 96px var(--paper), inset 0 0 0 97px rgba(46,102,85,.1); opacity: .8; }
.hero-content { position: relative; z-index: 1; max-width: 1400px; margin: 0 auto; display: grid; grid-template-columns: 1.15fr .85fr; gap: 10vw; align-items: end; }
.eyebrow, .section-label { margin: 0 0 28px; color: var(--accent); font: 600 11px/1.4 "Courier New", monospace; letter-spacing: .04em; text-transform: uppercase; }
h1 { max-width: 850px; margin: 0; font-size: clamp(48px, 6.1vw, 94px); line-height: .98; font-weight: 600; letter-spacing: -.045em; }
h1 span, .premise h2 span { color: var(--accent); }
.hero-copy { padding-bottom: 8px; }
.hero-lead { max-width: 540px; margin: 0 0 36px; color: #38423f; font-size: clamp(19px, 2vw, 25px); line-height: 1.55; }
.hero-actions { display: flex; align-items: center; gap: 12px; }
.primary-button, .outline-button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 0 20px; font-size: 14px; font-weight: 650; transition: transform .25s cubic-bezier(.16,1,.3,1), background .25s, border-color .25s; }
.primary-button { color: white; background: var(--accent); }
.primary-button:hover { background: var(--accent-deep); transform: translateY(-2px); }
.outline-button { border: 1px solid #aeb6b1; color: var(--accent-deep); }
.outline-button:hover { border-color: var(--accent); background: rgba(255,255,255,.48); transform: translateY(-2px); }
.signal-strip { margin-top: 68px; padding-top: 24px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); color: var(--muted); font: 500 10px/1.4 "Courier New", monospace; }
.signal-strip span { display: grid; gap: 5px; }
.signal-strip b { color: var(--ink); font: 600 18px/1 "Courier New", monospace; }
.ticker { position: absolute; left: 0; right: 0; bottom: 0; overflow: hidden; border-top: 1px solid var(--line); padding: 17px 0; color: #77807c; font: 500 11px/1 "Courier New", monospace; white-space: nowrap; }
.ticker span { display: inline-block; width: max-content; animation: ticker 34s linear infinite; }

.premise { max-width: 1400px; margin: 0 auto; padding: 128px 24px; }
.premise h2, .section-heading h2, .cta-band h2 { margin: 0; font-size: clamp(36px, 4.3vw, 62px); line-height: 1.08; font-weight: 600; letter-spacing: -.035em; }
.premise h2 { max-width: 1080px; color: #9aa09c; }
.direction-grid { margin-top: 92px; margin-left: 24%; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.direction-grid article { min-height: 180px; padding: 24px 36px 0 0; }
.card-index { color: var(--accent); font: 600 11px "Courier New", monospace; }
.direction-grid h3 { margin: 22px 0 11px; font-size: 18px; }
.direction-grid p { max-width: 260px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }

.index-section { padding: 112px 24px 140px; background: #edf0eb; border-top: 1px solid var(--line); }
.section-heading, .episode-list { max-width: 1400px; margin-left: auto; margin-right: auto; }
.section-heading { display: grid; grid-template-columns: 1fr 400px; gap: 80px; align-items: end; }
.section-heading > p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.episode-list { margin-top: 62px; border-top: 1px solid #cdd3cd; }
.episode-row { min-height: 126px; display: grid; grid-template-columns: 66px 1fr auto; gap: 20px; align-items: center; border-bottom: 1px solid #cdd3cd; }
.episode-number { color: #8a928e; font: 500 12px "Courier New", monospace; }
.episode-meta { color: var(--accent); font: 600 10px "Courier New", monospace; letter-spacing: .04em; }
.episode-row h3 { max-width: 900px; margin: 13px 0 0; font-size: clamp(18px, 2vw, 27px); line-height: 1.3; font-weight: 560; }
.episode-state { color: #7d8681; font: 500 10px "Courier New", monospace; }
.cta-band { min-height: 390px; padding: 80px max(24px, calc((100vw - 1400px)/2)); display: grid; grid-template-columns: 1.1fr .8fr; gap: 70px; align-items: center; color: #edf5f0; background: var(--dark); }
.cta-band .eyebrow { color: #77b59d; }
.cta-band > p { max-width: 450px; margin: 0; color: #aebbb6; font-size: 15px; line-height: 1.8; }
.footer { max-width: 1400px; margin: 0 auto; padding: 34px 24px; display: grid; grid-template-columns: 1fr 1.3fr 1fr; align-items: center; color: #7d8581; font: 500 11px/1.5 "Courier New", monospace; }
.footer span:nth-child(2) { text-align: center; }
.footer a { justify-self: end; color: var(--accent-deep); }

@keyframes breathe { 0%, 100% { opacity: .45; transform: scale(.8); } 50% { opacity: 1; transform: scale(1.2); } }
@keyframes ticker { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } }
@media (max-width: 900px) {
  .nav-bar { grid-template-columns: 1fr auto; }
  .nav-status { display: none; }
  .hero { min-height: 760px; padding-top: 105px; }
  .hero-content { grid-template-columns: 1fr; gap: 58px; align-items: start; }
  .hero-orbit { right: -140px; top: 115px; }
  .direction-grid { margin-left: 0; }
  .section-heading { grid-template-columns: 1fr; gap: 22px; }
  .cta-band { grid-template-columns: 1fr; gap: 28px; }
  .footer { grid-template-columns: 1fr auto; gap: 16px; }
  .footer span:nth-child(2) { display: none; }
}
@media (max-width: 620px) {
  .nav-shell { padding: 8px 8px 0; }
  .nav-bar { min-height: 54px; padding: 0 12px; }
  .brand { font-size: 12px; }
  .brand-mark { width: 30px; height: 30px; }
  .nav-link { font-size: 11px; }
  .hero { min-height: 725px; padding: 100px 18px 0; }
  h1 { font-size: clamp(43px, 12.8vw, 66px); }
  .hero-lead { font-size: 17px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .signal-strip { margin-top: 45px; gap: 12px; }
  .signal-strip b { font-size: 16px; }
  .premise { padding: 86px 18px; }
  .premise h2 { font-size: 32px; }
  .direction-grid { margin-top: 58px; grid-template-columns: 1fr; gap: 26px; }
  .direction-grid article { min-height: 0; padding: 20px 0 0; border-top: 1px solid var(--line); }
  .index-section { padding: 84px 18px 100px; }
  .section-heading h2, .cta-band h2 { font-size: 37px; }
  .episode-list { margin-top: 42px; }
  .episode-row { grid-template-columns: 36px 1fr; gap: 10px; padding: 23px 0; }
  .episode-state { grid-column: 2; }
  .episode-row h3 { font-size: 18px; }
  .cta-band { padding: 70px 20px; }
  .footer { padding: 28px 18px; grid-template-columns: 1fr; }
  .footer a { justify-self: start; }
}