:root {
  --paper: #f4f8ff;
  --paper-2: #e9f1fd;
  --surface: #ffffff;
  --ink: #0d1b34;
  --text: #1d2c49;
  --muted: #5c6a84;
  --cyan: #1fb7e8;
  --cyan-deep: #0f93c7;
  --violet: #7b6cf0;
  --magenta: #ff5f9e;
  --gold: #f0a92e;
  --gold-soft: #ffd27a;
  --line: rgba(13, 27, 52, .12);
  --line-strong: rgba(13, 27, 52, .24);
  --container: 1440px;
  --header-h: 84px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --serif: "Songti SC", "STSong", "Noto Serif SC", "SimSun", serif;
  --sans: "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --shadow-card: 0 2px 4px rgba(13, 27, 52, .05), 0 16px 40px rgba(13, 27, 52, .09);
  --shadow-float: 0 26px 70px rgba(13, 27, 52, .16);
  --grad-cta: linear-gradient(135deg, #22b8ea 0%, #6f8bf2 52%, #8f6ff0 100%);
  --grad-title: linear-gradient(115deg, #1fb7e8 10%, #7b6cf0 55%, #ff5f9e 95%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--paper);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.modal-open,
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.serif { font-family: var(--serif); }

.container { width: min(var(--container), calc(100% - 72px)); margin: 0 auto; }
.noise {
  position: fixed; inset: 0; z-index: 99; pointer-events: none; opacity: .028;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
}
.cursor-light {
  position: fixed; left: 0; top: 0; z-index: 0; width: 520px; height: 520px; border-radius: 50%;
  pointer-events: none; opacity: 0; transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(31, 183, 232, .09), transparent 66%); transition: opacity .4s;
}
@media (pointer: fine) { body:hover .cursor-light { opacity: 1; } }

/* Loader */
.page-loader {
  position: fixed; inset: 0; z-index: 9999; display: grid; place-content: center; gap: 24px;
  color: var(--muted); text-align: center; letter-spacing: .3em; font-size: 14px;
  background: var(--paper); transition: opacity .7s var(--ease), visibility .7s;
}
body.loaded .page-loader { opacity: 0; visibility: hidden; }
.loader-logo { width: min(240px, 62vw); height: auto; display: block; }
.loader-mark, .brand-mark { position: relative; display: inline-block; width: 44px; height: 34px; margin: auto; }
.loader-mark i, .brand-mark i {
  position: absolute; left: 50%; bottom: 2px; width: 4px; border-radius: 8px; background: var(--cyan);
  transform-origin: 50% 100%;
}
.loader-mark i:nth-child(1), .brand-mark i:nth-child(1) { height: 10px; transform: translateX(-22px) rotate(-10deg); }
.loader-mark i:nth-child(2), .brand-mark i:nth-child(2) { height: 20px; transform: translateX(-12px) rotate(-5deg); }
.loader-mark i:nth-child(3), .brand-mark i:nth-child(3) { height: 30px; transform: translateX(-2px); background: var(--violet); }
.loader-mark i:nth-child(4), .brand-mark i:nth-child(4) { height: 20px; transform: translateX(8px) rotate(5deg); }
.loader-mark i:nth-child(5), .brand-mark i:nth-child(5) { height: 10px; transform: translateX(18px) rotate(10deg); }
.loader-mark i { animation: loaderPulse 1.1s ease-in-out infinite alternate; }
.loader-mark i:nth-child(2), .loader-mark i:nth-child(4) { animation-delay: .15s; }
.loader-mark i:nth-child(3) { animation-delay: .3s; }
@keyframes loaderPulse { to { opacity: .22; transform: translateX(var(--x, 0)) scaleY(.35); } }

/* Header */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 120; height: var(--header-h); display: flex; align-items: center;
  padding: 0 max(36px, calc((100vw - var(--container)) / 2)); color: var(--ink);
  background: rgba(244, 248, 255, .76); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line);
  transition: height .4s var(--ease), background .4s, border-color .4s, box-shadow .4s;
}
.site-header.scrolled { height: 70px; background: rgba(255, 255, 255, .92); box-shadow: 0 10px 34px rgba(13, 27, 52, .08); }
.brand { display: flex; align-items: center; gap: 13px; flex-shrink: 0; }
.brand-logo { display: block; width: 190px; height: auto; }
.brand-logo-opcbook { width: 176px; }
.footer-brand .brand-logo { width: 210px; }
.brand-mark { width: 42px; height: 30px; margin: 0; transform: scale(.78); transform-origin: left center; }
.brand-copy { display: flex; flex-direction: column; gap: 2px; }
.brand-copy b { font-size: 18px; font-weight: 800; letter-spacing: .08em; }
.brand-copy small { font-size: 14px; color: var(--muted); letter-spacing: .18em; }
.desktop-nav { display: flex; align-items: center; gap: clamp(22px, 2.4vw, 42px); margin: 0 auto; }
.desktop-nav a { position: relative; font-size: 14px; color: rgba(13, 27, 52, .62); transition: color .25s; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -9px; height: 2px; background: linear-gradient(90deg, var(--cyan), var(--violet)); transition: right .35s var(--ease); }
.desktop-nav a:hover { color: var(--ink); }
.desktop-nav a:hover::after { right: 0; }
.desktop-nav a.is-active,
.desktop-nav a[aria-current="true"],
.desktop-nav a[aria-current="page"] { color: var(--ink); font-weight: 700; }
.desktop-nav a.is-active::after,
.desktop-nav a[aria-current="true"]::after,
.desktop-nav a[aria-current="page"]::after { right: 0; }
.header-actions { display: flex; align-items: center; gap: 20px; flex-shrink: 0; }
.header-date { font-size: 14px; letter-spacing: .14em; color: var(--muted); font-weight: 550; }
.btn {
  min-height: 48px; border: 0; border-radius: 999px; padding: 0 26px; display: inline-flex; align-items: center; justify-content: center; gap: 24px;
  cursor: pointer; font-size: 14px; font-weight: 650; letter-spacing: .04em; transition: transform .35s var(--ease), background .3s, color .3s, border-color .3s, box-shadow .3s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: var(--surface); background: var(--grad-cta); box-shadow: 0 12px 28px rgba(111, 139, 242, .36); }
.btn-primary:hover { box-shadow: 0 16px 36px rgba(111, 139, 242, .48); }
.btn-primary i { font-style: normal; font-size: 18px; }
.btn-nav { min-height: 42px; padding: 0 20px; color: var(--ink); background: rgba(255, 255, 255, .72); border: 1px solid var(--line-strong); }
.btn-nav:hover { background: var(--ink); color: var(--surface); border-color: var(--ink); }
.btn-ghost { color: var(--ink); background: transparent; border: 1px solid var(--line-strong); }
.btn-ghost:hover { background: var(--surface); border-color: var(--ink); }
.btn-glass { color: var(--ink); background: rgba(255, 255, 255, .68); border: 1px solid rgba(13, 27, 52, .2); backdrop-filter: blur(10px); }
.btn-glass:hover { background: rgba(255, 255, 255, .94); border-color: var(--ink); }
.btn-light { color: var(--ink); background: var(--gold-soft); box-shadow: 0 12px 30px rgba(13, 27, 52, .2); }
.btn-light:hover { background: #ffe29a; }
.btn-outline-light { color: var(--surface); background: transparent; border: 1px solid rgba(255, 255, 255, .55); }
.btn-outline-light:hover { background: rgba(255, 255, 255, .14); border-color: var(--surface); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line-strong); border-radius: 12px; background: var(--surface); cursor: pointer; }
.menu-toggle i { display: block; width: 18px; height: 2px; margin: 5px auto; background: var(--ink); transition: .3s; }
.menu-open .menu-toggle i:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-open .menu-toggle i:last-child { transform: translateY(-3.5px) rotate(-45deg); }
.mobile-menu { position: fixed; inset: 0; z-index: 110; display: none; color: var(--ink); background: rgba(244, 248, 255, .98); visibility: hidden; opacity: 0; transition: .35s; }
.mobile-menu-inner { width: min(620px, calc(100% - 48px)); margin: 110px auto 0; display: grid; }
.mobile-menu .menu-index { margin-bottom: 28px; color: var(--muted); font-size: 14px; letter-spacing: .2em; }
.mobile-menu a { padding: 18px 0; font-size: 28px; font-weight: 750; border-bottom: 1px solid var(--line); }
.mobile-menu a b { display: inline-block; width: 50px; color: var(--cyan); font-size: 14px; font-weight: 700; }
.mobile-menu a.is-active { color: #665ed4; }
.mobile-menu a.is-active b { color: #665ed4; }
.mobile-menu .btn { margin-top: 30px; }

/* Hero */
.hero { position: relative; min-height: max(820px, 100svh); overflow: hidden; color: var(--ink); background: var(--paper); }
.hero-bg { position: absolute; inset: 0; background: url("assets/hero-life-wide-hd.webp") 54% 50% / cover no-repeat; transform: none; }
.hero-veil { position: absolute; inset: 0; pointer-events: none; background:
  linear-gradient(90deg, rgba(247, 250, 255, .98) 0%, rgba(247, 250, 255, .93) 23%, rgba(247, 250, 255, .68) 39%, rgba(247, 250, 255, .08) 63%, transparent 78%),
  linear-gradient(180deg, rgba(247, 250, 255, .18) 0%, transparent 28%, transparent 68%, rgba(244, 248, 255, .58) 100%); }
#sparkCanvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .54; }
.hero-inner {
  position: relative; z-index: 3; width: min(var(--container), calc(100% - 96px)); min-height: max(820px, 100svh); margin: 0 auto;
  display: grid; grid-template-columns: minmax(0, .88fr) minmax(540px, 1.12fr); align-items: center; padding: 128px 0 116px;
}
.hero-copy { position: relative; z-index: 2; max-width: 660px; padding-top: 2vh; }
.hero-kicker { display: flex; align-items: center; justify-content: flex-start; gap: 16px; margin-bottom: 28px; color: var(--muted); font-size: 14px; letter-spacing: .18em; font-weight: 650; white-space: nowrap; }
.hero-kicker i { width: 56px; height: 1px; background: linear-gradient(90deg, transparent, var(--cyan), transparent); }
.hero-kicker sup { color: var(--cyan); font-size: 14px; font-weight: 800; }
.hero h1 { margin: 0; line-height: .94; letter-spacing: -.06em; text-shadow: 0 8px 48px rgba(255, 255, 255, .92); }
.hero h1 > span { display: block; width: max-content; max-width: 100%; font-weight: 850; font-size: clamp(76px, 6.2vw, 104px); }
.hero h1 .title-accent { margin-top: 12px; background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-subtitle { max-width: 570px; margin: 34px 0 0; padding-top: 25px; border-top: 1px solid rgba(13, 27, 52, .2); font-size: clamp(17px, 1.28vw, 20px); letter-spacing: .045em; line-height: 1.7; color: var(--ink); }
.hero-subtitle small { display: block; margin-top: 2px; color: var(--muted); font-size: 14px; letter-spacing: .1em; }
.hero-info-card {
  position: absolute; right: 0; bottom: 92px; width: min(470px, 35vw); padding: 24px 26px 22px; color: var(--ink);
  border: 1px solid rgba(255, 255, 255, .76); border-radius: 24px; background: rgba(250, 252, 255, .56);
  box-shadow: 0 24px 70px rgba(69, 93, 146, .16), inset 0 1px 0 rgba(255, 255, 255, .85); backdrop-filter: blur(22px) saturate(1.25);
}
.hero-info-card::before { content: ""; position: absolute; inset: 8px; pointer-events: none; border: 1px solid rgba(83, 111, 171, .1); border-radius: 17px; }
.hero-info-topline { position: relative; display: flex; align-items: center; gap: 10px; padding-bottom: 16px; color: var(--muted); font-size: 14px; letter-spacing: .13em; }
.hero-info-topline i { width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px rgba(31, 183, 232, .8); }
.hero-info-topline b { margin-left: auto; color: var(--ink); font-size: 14px; font-weight: 700; letter-spacing: .08em; }
.hero-info-grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid rgba(13, 27, 52, .12); border-bottom: 1px solid rgba(13, 27, 52, .12); }
.hero-info-item { padding: 19px 14px 18px 0; }
.hero-info-item + .hero-info-item { padding-left: 22px; border-left: 1px solid rgba(13, 27, 52, .12); }
.hero-info-item > span { display: block; color: var(--violet); font-size: 14px; font-weight: 800; letter-spacing: .14em; }
.hero-info-item strong { display: block; margin-top: 8px; color: var(--ink); font-size: 20px; font-weight: 800; letter-spacing: -.02em; }
.hero-info-item small { display: block; margin-top: 4px; color: var(--muted); font-size: 14px; }
.hero-info-countdown { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-top: 19px; }
.countdown-label { color: var(--muted); font-size: 14px; letter-spacing: .16em; font-weight: 700; }
.countdown { display: flex; align-items: center; gap: 14px; }
.countdown div { display: grid; gap: 2px; text-align: center; }
.countdown strong { font-size: 28px; font-weight: 850; font-variant-numeric: tabular-nums; line-height: 1; background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; }
.countdown small { font-size: 14px; letter-spacing: .1em; color: var(--muted); }
.countdown > i { color: var(--violet); font-style: normal; font-weight: 800; }
@keyframes orbitSpin { to { transform: rotate(360deg); } }
.hero-cta { display: flex; justify-content: flex-start; align-items: center; gap: 28px; margin-top: 34px; }
.hero-cta .btn { min-width: 182px; min-height: 56px; }
.hero-partner-link { display: inline-flex; align-items: center; gap: 18px; min-height: 48px; padding: 0; border: 0; border-bottom: 1px solid rgba(13, 27, 52, .34); color: var(--ink); background: transparent; cursor: pointer; font-size: 14px; font-weight: 700; letter-spacing: .06em; }
.hero-partner-link span { transition: transform .3s var(--ease); }
.hero-partner-link:hover span { transform: translateX(6px); }
.hero-audience { margin: 38px 0 0; color: rgba(13, 27, 52, .52); font-size: 14px; line-height: 1.5; letter-spacing: .12em; }
.text-link, .arrow-link { display: inline-flex; gap: 18px; align-items: center; font-size: 14px; font-weight: 650; }
.text-link span, .arrow-link span { transition: transform .3s var(--ease); }
.text-link:hover span { transform: translateY(5px); }
.arrow-link:hover span { transform: translateX(6px); }
.hero-scroll-cue { position: absolute; left: 50%; bottom: 28px; z-index: 5; display: flex; align-items: center; gap: 14px; color: rgba(13, 27, 52, .5); transform: translateX(-50%); font-size: 14px; letter-spacing: .15em; }
.hero-scroll-cue i { width: 46px; height: 1px; background: linear-gradient(90deg, var(--violet), transparent); animation: scrollLine 1.8s ease-in-out infinite; transform-origin: left; }
@keyframes scrollLine { 0% { transform: scaleX(0); opacity: 0; } 35% { opacity: 1; } 100% { transform: scaleX(1); opacity: 0; } }

.hero-copy .reveal:nth-child(2) { transition-delay: .06s; }
.hero-copy .reveal:nth-child(3) { transition-delay: .12s; }
.hero-copy .reveal:nth-child(4) { transition-delay: .18s; }
.hero-copy .reveal:nth-child(5) { transition-delay: .24s; }
.hero-info-card.reveal { transition-delay: .25s; }

/* Marquee */
.marquee { overflow: hidden; padding: 34px 0; border-bottom: 1px solid var(--line); background: var(--paper); }
.marquee-track { display: flex; align-items: center; gap: 34px; width: max-content; animation: marqueeMove 34s linear infinite; white-space: nowrap; }
.marquee-track span { font-size: clamp(30px, 3.6vw, 52px); font-weight: 800; letter-spacing: -.02em; color: var(--ink); }
.marquee-track i { color: var(--cyan); font-style: normal; font-size: 18px; }
@keyframes marqueeMove { to { transform: translateX(-50%); } }

/* Section head */
.section-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 22px; border-bottom: 1px dashed var(--line-strong); }
.eyebrow { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 14px; font-weight: 650; letter-spacing: .16em; }
.eyebrow i { width: 9px; height: 9px; border-radius: 50%; background: var(--grad-cta); box-shadow: 0 0 12px rgba(111, 139, 242, .6); }
.chapter-no { font-size: clamp(64px, 7vw, 108px); line-height: .85; color: transparent; -webkit-text-stroke: 1px rgba(13, 27, 52, .2); font-weight: 850; }
.display-heading { margin: 0; font-size: clamp(34px, 3.4vw, 58px); line-height: 1.26; letter-spacing: -.035em; font-weight: 850; color: var(--ink); text-wrap: balance; }
.display-heading em { background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; font-style: normal; }

/* Manifesto */
.manifesto { position: relative; min-height: 900px; padding: 72px 0 58px; overflow: hidden; scroll-margin-top: 70px; background: linear-gradient(180deg, #f9fbff 0%, #fff 58%, #f5f8ff 100%); }
.manifesto-stage { position: relative; z-index: 2; width: min(var(--container), calc(100% - 112px)); min-height: 770px; }
.manifesto-head { display: flex; align-items: center; justify-content: space-between; min-height: 34px; }
.manifesto-narrative { position: relative; min-height: 540px; }
.manifesto-thesis { position: relative; z-index: 3; width: min(960px, 56vw); padding-top: 58px; }
.manifesto-thesis h2 { margin: 0; color: var(--ink); font-size: clamp(52px, 3.4vw, 68px); line-height: 1.08; letter-spacing: -.05em; font-weight: 850; }
.manifesto-thesis h2 > span { display: block; }
.manifesto-thesis h2 em { background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; font-style: normal; }
.manifesto-copy { width: min(500px, 38vw); margin-top: 40px; }
.manifesto-copy p { margin: 0 0 22px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.manifesto-quote { position: absolute; z-index: 4; right: 0; top: 150px; width: min(500px, 37vw); margin: 0; padding: 0; color: var(--ink); }
.quote-mark { position: absolute; left: -46px; top: -42px; color: var(--violet); font-family: Georgia, serif; font-size: 72px; line-height: 1; opacity: .72; }
.manifesto-quote p { margin: 0; font-family: var(--serif); font-size: clamp(40px, 3.8vw, 58px); line-height: 1.2; letter-spacing: -.04em; font-weight: 850; background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; text-shadow: 0 4px 30px rgba(255, 255, 255, .9); }
.manifesto-quote p strong { color: inherit; font-weight: 850; }
.manifesto-quote footer { margin-top: 22px; color: var(--muted); font-size: 14px; letter-spacing: .1em; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.manifesto-axis { position: absolute; left: 0; right: 0; bottom: 0; margin: 0; border-bottom: 1px solid rgba(75, 106, 171, .2); }
.manifesto-axis .stat { position: relative; min-height: 148px; padding: 0 12px 24px; border: 0; text-align: center; }
.manifesto-axis .stat::after { content: ""; position: absolute; left: 50%; bottom: -5px; width: 9px; height: 9px; border-radius: 50%; background: #b9a5ff; border: 3px solid rgba(255, 255, 255, .88); box-shadow: 0 0 18px rgba(123, 108, 240, .7); transform: translateX(-50%); }
.stat > span { color: var(--muted); font-size: 14px; letter-spacing: .12em; font-weight: 650; }
.stat > div { display: flex; align-items: flex-start; justify-content: center; margin: 15px 0 8px; }
.stat strong { font-size: clamp(46px, 4.2vw, 64px); line-height: .95; letter-spacing: -.05em; font-weight: 850; background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; }
.stat b { background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; font-size: 26px; font-weight: 800; }
.stat p { margin: 0; color: var(--text); font-size: 14px; }

/* Highlights */
.highlights { position: relative; padding: 120px 0 140px; overflow: hidden; background: linear-gradient(180deg, var(--paper), var(--paper-2)); }
.highlights::before { content: ""; position: absolute; inset: 0; pointer-events: none; background:
  radial-gradient(circle at 12% 20%, rgba(31, 183, 232, .08), transparent 28%),
  radial-gradient(circle at 88% 72%, rgba(255, 95, 158, .07), transparent 30%); }
.intro-row { position: relative; display: grid; grid-template-columns: 1.45fr .55fr; gap: 6vw; align-items: end; padding: 84px 0 74px; }
.intro-row > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 2; }
.collage { position: relative; display: grid; grid-template-columns: repeat(12, 1fr); grid-auto-rows: auto; gap: 22px; align-items: start; }
.collage-card {
  position: relative; display: flex; flex-direction: column; justify-content: flex-end; min-height: 300px; padding: 26px;
  background: var(--surface); border: 1px solid rgba(13, 27, 52, .13); border-radius: 24px; box-shadow: var(--shadow-card);
  transition: transform .35s var(--ease), box-shadow .35s, border-color .35s;
}
.collage-card:hover { box-shadow: var(--shadow-float); border-color: rgba(123, 108, 240, .42); }
.collage-index { position: absolute; top: 22px; left: 26px; color: var(--muted); font-size: 14px; letter-spacing: .14em; font-weight: 650; }
.collage-art { height: 230px; margin: 0 0 18px; overflow: hidden; border-radius: 16px; background: var(--paper-2); border: 1px solid var(--line); }
.collage-art img { width: 100%; height: 100%; object-fit: cover; display: block; }
.collage-card h3 { margin: 12px 0 10px; font-size: 24px; line-height: 1.4; font-weight: 800; color: var(--ink); }
.collage-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.collage-feature { grid-column: 1 / 6; grid-row: span 2; min-height: 610px; padding: 30px; }
.collage-feature h3 { font-size: 31px; }
.collage-art-lg { height: 420px; margin-bottom: 24px; }
.collage-card:nth-child(2) { grid-column: 6 / 12; }
.collage-card:nth-child(3) { grid-column: 6 / 12; }
.collage-years { grid-column: 1 / 7; margin-top: 58px; }
.collage-eight { grid-column: 7 / 12; margin-top: 18px; }
.years { display: flex; align-items: center; gap: 22px; margin: 54px 0 20px; }
.years > div { display: flex; gap: 10px; align-items: end; }
.years strong { font-size: 62px; line-height: .8; background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 850; }
.years span { color: var(--muted); font-size: 14px; line-height: 1.5; letter-spacing: .06em; }
.years > i { width: 1px; height: 38px; background: var(--line-strong); }
.anniversary-eight { position: absolute; right: 20px; top: -8px; color: rgba(123, 108, 240, .12); font-family: var(--serif); font-size: 200px; line-height: .72; font-weight: 900; }
.anniversary-eight span { font-size: 26px; }

/* Agenda */
.agenda { position: relative; padding: 120px 0 130px; overflow: hidden; }
.agenda-word { position: absolute; right: -3vw; top: 9%; color: transparent; -webkit-text-stroke: 1px rgba(13, 27, 52, .06); font-family: var(--serif); font-size: 17vw; line-height: .8; font-weight: 800; letter-spacing: -.04em; pointer-events: none; transform: rotate(-5deg); }
.agenda-header { display: grid; grid-template-columns: 1fr auto; align-items: end; padding: 84px 0 56px; }
.agenda-meta { display: grid; gap: 8px; text-align: right; }
.agenda-meta b { font-size: 19px; font-weight: 800; }
.agenda-meta span { color: var(--muted); font-size: 14px; }
.agenda-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 10px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--surface); }
.agenda-tabs button { position: relative; height: 60px; border: 0; border-radius: 999px; color: var(--muted); background: transparent; cursor: pointer; text-align: center; font-size: 14px; font-weight: 650; transition: .3s; }
.agenda-tabs button span { margin-right: 14px; color: var(--violet); font-size: 14px; }
.agenda-tabs button.active { color: var(--surface); background: var(--ink); box-shadow: 0 10px 24px rgba(13, 27, 52, .24); }
.agenda-panels { min-height: 520px; }
.agenda-panel { display: none; }
.agenda-panel.active { display: block; animation: panelIn .6s var(--ease); }
@keyframes panelIn { from { opacity: 0; transform: translateY(14px); } }
.agenda-panel article { position: relative; display: grid; grid-template-columns: 130px 22px 1fr auto; gap: 30px; align-items: center; min-height: 128px; padding: 22px 8px 22px 0; border-bottom: 1px dashed var(--line-strong); transition: padding-left .4s var(--ease), background .3s; }
.agenda-panel article:hover { padding-left: 20px; background: linear-gradient(90deg, rgba(123, 108, 240, .08), transparent 55%); }
.agenda-panel article time { font-size: 26px; letter-spacing: -.02em; color: var(--ink); font-weight: 800; font-variant-numeric: tabular-nums; }
.agenda-dot { position: relative; width: 11px; height: 11px; border: 2px solid var(--paper); border-radius: 50%; background: var(--violet); box-shadow: 0 0 0 1px var(--violet), 0 0 12px rgba(123, 108, 240, .55); }
.agenda-dot::after { content: ""; position: absolute; left: 4px; top: 15px; width: 1px; height: 114px; border-left: 1px dashed var(--line-strong); }
.agenda-panel article:last-child .agenda-dot::after { display: none; }
.agenda-panel small { color: var(--cyan); font-size: 14px; letter-spacing: .14em; font-weight: 650; }
.agenda-panel h3 { margin: 6px 0; font-size: 20px; font-weight: 800; color: var(--ink); }
.agenda-panel p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.agenda-panel article > b { color: rgba(13, 27, 52, .09); font-family: var(--serif); font-size: 44px; font-weight: 800; }
.agenda-note { margin: 20px 0 0; color: var(--muted); font-size: 14px; text-align: right; }
.agenda-note small { font-size: 14px; }

/* Guests */
.guests { position: relative; padding: 120px 0 130px; overflow: hidden; background: linear-gradient(180deg, var(--paper-2), var(--paper)); }
.guests::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at 80% 14%, rgba(123, 108, 240, .08), transparent 30%), radial-gradient(circle at 10% 88%, rgba(31, 183, 232, .08), transparent 28%); }
.guest-intro { position: relative; display: grid; grid-template-columns: 1fr auto; align-items: end; padding: 84px 0 70px; }
.guest-status { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 14px; line-height: 1.6; }
.guest-status i { width: 9px; height: 9px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 14px rgba(31, 183, 232, .7); animation: pulse 1.8s infinite; }
.guest-status small { color: var(--muted); font-size: 14px; }
@keyframes pulse { 50% { opacity: .3; transform: scale(.75); } }
.guest-cards { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.guest-card {
  position: relative; display: grid; grid-template-columns: 96px 1fr; gap: 4px 26px; align-items: center; min-height: 190px; padding: 28px;
  background: var(--surface); border: 1px solid rgba(13, 27, 52, .13); border-radius: 24px; box-shadow: var(--shadow-card);
  transition: transform .35s var(--ease), box-shadow .35s, border-color .35s;
}
.guest-card:hover { box-shadow: var(--shadow-float); border-color: rgba(31, 183, 232, .5); }
.guest-card-offset { transform: translateY(38px); }
.guest-thumb { position: relative; grid-row: span 3; width: 96px; height: 96px; margin: 0; overflow: hidden; border: 1px solid rgba(13, 27, 52, .14); border-radius: 20px; background: var(--paper-2); transform: rotate(-2deg); box-shadow: var(--shadow-card); }
.guest-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.guest-thumb b { position: absolute; left: 7px; bottom: 7px; min-width: 24px; height: 24px; padding: 0 7px; display: grid; place-items: center; color: var(--surface); font-size: 14px; font-weight: 700; border-radius: 8px; background: rgba(13, 27, 52, .78); }
.guest-card small { grid-column: 2; color: var(--muted); font-size: 14px; letter-spacing: .14em; }
.guest-card h3 { grid-column: 2; margin: 7px 0 0; font-size: 25px; font-weight: 800; color: var(--ink); }
.guest-card p { grid-column: 2; margin: 8px 0 0; color: var(--muted); font-size: 14px; }
.guest-badge { position: absolute; right: 24px; top: 24px; padding: 6px 13px; color: var(--violet); font-size: 14px; font-weight: 650; letter-spacing: .1em; border: 1px solid rgba(123, 108, 240, .4); border-radius: 999px; background: rgba(123, 108, 240, .08); }
.guest-more { grid-column: 1 / -1; min-height: 150px; display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 30px 38px; border: 1px dashed var(--line-strong); border-radius: 24px; background: rgba(255, 255, 255, .55); }
.guest-more span { color: var(--muted); font-size: 14px; letter-spacing: .16em; }
.guest-more h3 { margin: 10px 0 0; font-size: 26px; font-weight: 800; color: var(--ink); }

/* Competition */
.competition { position: relative; padding: 120px 0 110px; overflow: hidden; background: linear-gradient(180deg, var(--paper), #f2f7ff); }
.competition-grid { display: grid; grid-template-columns: .9fr 1fr; gap: 10vw; padding: 90px 0 70px; }
.micro-label { background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; font-size: 14px; letter-spacing: .16em; font-weight: 800; }
.competition-copy h2 { margin: 24px 0; font-size: clamp(42px, 4.2vw, 64px); line-height: 1.14; letter-spacing: -.05em; font-weight: 850; color: var(--ink); text-wrap: balance; }
.competition-copy h2 em { background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; font-style: normal; }
.competition-copy p { max-width: 540px; margin: 0 0 36px; color: var(--muted); font-size: 14px; line-height: 2; }
.competition-numbers { position: relative; }
.competition-numbers article { display: grid; grid-template-columns: 44px 1fr; gap: 26px; align-items: center; min-height: 122px; padding-left: 6px; border-bottom: 1px dashed var(--line-strong); }
.competition-numbers article > span { position: relative; z-index: 2; width: 30px; height: 30px; display: grid; place-items: center; color: var(--surface); border-radius: 50%; background: var(--grad-cta); font-size: 14px; font-weight: 700; }
.competition-numbers strong { font-size: clamp(38px, 4vw, 56px); font-weight: 850; letter-spacing: -.04em; color: var(--ink); font-variant-numeric: tabular-nums; }
.competition-numbers sup { background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; font-size: 19px; }
.competition-numbers p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.number-track { position: absolute; left: 20px; top: 60px; bottom: 60px; width: 2px; background: rgba(123, 108, 240, .16); border-radius: 2px; }
.number-track i { display: block; width: 2px; height: 25%; background: linear-gradient(180deg, var(--cyan), var(--violet)); box-shadow: 0 0 12px rgba(123, 108, 240, .5); animation: trackMove 3.5s ease-in-out infinite alternate; }
@keyframes trackMove { to { transform: translateY(300%); } }
.competition-art { position: relative; margin: 0 0 26px; overflow: hidden; border-radius: 28px; border: 1px solid rgba(13, 27, 52, .13); box-shadow: var(--shadow-card); transform: rotate(-.6deg); }
.competition-art img { width: 100%; height: 430px; object-fit: cover; display: block; }
.competition-art picture { display: block; width: 100%; }
.competition-benefits { min-height: 96px; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 0 36px; border: 1px dashed var(--line-strong); border-radius: 22px; background: var(--surface); color: var(--text); font-size: 14px; font-weight: 650; }
.competition-benefits i { width: 6px; height: 6px; border-radius: 50%; background: var(--grad-cta); flex-shrink: 0; }

/* History */
.history { padding: 120px 0 150px; }
.history-heading { display: grid; grid-template-columns: 1.45fr .55fr; gap: 6vw; align-items: end; padding: 84px 0 110px; }
.history-heading p { margin: 0; color: var(--muted); font-size: 14px; line-height: 2; }
.history-track { position: relative; display: grid; grid-template-columns: repeat(6, minmax(150px, 1fr)); gap: 24px; padding: 0; }
.history-line { position: absolute; left: 0; right: 0; top: 126px; height: 2px; background-image: linear-gradient(90deg, rgba(13, 27, 52, .3) 45%, transparent 45%); background-size: 14px 2px; background-repeat: repeat-x; }
.history-line i { display: block; width: 18%; height: 2px; background: linear-gradient(90deg, var(--cyan), var(--violet)); background-image: none; }
.history-track article { position: relative; padding-top: 142px; }
.history-track article > span { position: absolute; left: 50%; top: 120px; z-index: 2; width: 13px; height: 13px; transform: translateX(-50%); border: 3px solid var(--paper); border-radius: 50%; background: var(--violet); box-shadow: 0 0 0 1px var(--violet), 0 0 14px rgba(123, 108, 240, .55); }
.history-card { display: grid; gap: 6px; padding: 20px 18px; border-radius: 18px; background: var(--surface); border: 1px solid rgba(13, 27, 52, .13); box-shadow: var(--shadow-card); text-align: left; transition: transform .35s var(--ease), box-shadow .35s; }
.history-card:hover { box-shadow: var(--shadow-float); }
.history-track article.up .history-card { transform: rotate(-1.2deg); }
.history-track article.down .history-card { transform: rotate(1deg) translateY(24px); }
.history-card time { color: var(--muted); font-size: 14px; letter-spacing: .06em; font-weight: 650; }
.history-card small { color: var(--muted); font-size: 14px; }
.history-card h3 { margin: 10px 0 0; font-size: 19px; line-height: 1.45; font-weight: 800; color: var(--ink); }
.history-card p { margin: 8px 0 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
.history-track article.future .history-card { background: var(--grad-cta); border-color: transparent; color: var(--surface); }
.history-track article.future .history-card time, .history-track article.future .history-card small, .history-track article.future .history-card p { color: rgba(255, 255, 255, .88); }
.history-track article.future .history-card h3 { color: var(--surface); }

/* Organizers */
.organizers { padding: 0 0 120px; }
.organizers-head { display: grid; grid-template-columns: 1fr .5fr; gap: 8vw; align-items: end; padding: 64px 0 54px; border-top: 1px dashed var(--line-strong); }
.organizers-head span { background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; font-size: 14px; letter-spacing: .16em; font-weight: 800; }
.organizers-head h2 { margin: 14px 0 0; font-size: 37px; line-height: 1.25; letter-spacing: -.035em; font-weight: 850; color: var(--ink); }
.organizers-head p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.org-groups { border-top: 1px solid rgba(58, 85, 143, .18); }
.org-group { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 34px; align-items: center; min-height: 130px; padding: 25px 0; border-bottom: 1px solid rgba(58, 85, 143, .18); }
.org-label { display: flex; align-items: center; gap: 14px; color: var(--muted); }
.org-label small { min-width: 30px; color: #7585aa; font-size: 14px; letter-spacing: .1em; }
.org-label span { font-size: 14px; font-weight: 700; letter-spacing: .08em; }
.org-list { display: flex; align-items: center; flex-wrap: wrap; gap: 18px 38px; min-width: 0; }
.org-name { display: inline-flex; align-items: center; min-height: 64px; max-width: 300px; color: var(--ink); font-size: 16px; line-height: 1.6; font-weight: 760; letter-spacing: .01em; }
.org-logo { height: 68px; min-width: 150px; max-width: 270px; margin: 0; display: flex; align-items: center; justify-content: flex-start; }
.org-logo img { display: block; max-width: 100%; max-height: 52px; width: auto; height: auto; object-fit: contain; }
.org-logo-rwari { min-width: 232px; padding: 10px 14px; border-radius: 12px; background: #101f4f; }
.org-logo-rwari img { width: 202px; max-height: 48px; }
.org-logo-xiaoyao { min-width: 220px; }
.org-logo-xiaoyao img { width: 215px; }
.org-logo-seeyon { min-width: 170px; }
.org-logo-seeyon img { width: 164px; }
.org-logo-flc { min-width: 170px; gap: 12px; }
.org-logo-flc img { width: 48px; height: 48px; }
.org-logo-flc figcaption { display: grid; gap: 3px; color: #10204b; }
.org-logo-flc figcaption b { font-size: 23px; line-height: 1; letter-spacing: .08em; }
.org-logo-flc figcaption span { color: #647193; font-size: 14px; letter-spacing: .06em; }
.org-logo-opcbook { min-width: 220px; }
.org-logo-opcbook img { width: 215px; }
.org-logo-opctalk { min-width: 250px; }
.org-logo-opctalk img { width: 245px; }

/* Final CTA */
.final-cta { position: relative; min-height: 620px; display: grid; place-items: center; overflow: hidden; color: var(--surface); background: linear-gradient(135deg, #1153b8 0%, #3f5fd9 34%, #6d5fe8 62%, #a150d8 100%); }
.final-cta::before { content: ""; position: absolute; inset: 0; opacity: .3; background-image: radial-gradient(rgba(255, 255, 255, .3) 1px, transparent 1px); background-size: 22px 22px; }
.final-cta-art { position: absolute; right: -5%; top: 50%; z-index: 1; width: min(46vw, 660px); transform: translateY(-50%) rotate(-4deg); opacity: .52; pointer-events: none; mix-blend-mode: screen; mask-image: linear-gradient(90deg, transparent, black 34%, black 72%, transparent); }
.final-cta-art img { width: 100%; height: auto; display: block; filter: saturate(1.08); }
.final-word { position: absolute; right: -2vw; bottom: -8%; color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, .3); font-family: var(--serif); font-size: 26vw; line-height: .8; font-weight: 900; letter-spacing: -.04em; pointer-events: none; }
.final-sparks i { position: absolute; width: 6px; height: 6px; border-radius: 50%; background: var(--gold-soft); box-shadow: 0 0 16px rgba(255, 210, 122, .9); animation: sparkFloat 5s ease-in-out infinite; }
.final-sparks i:nth-child(1) { left: 12%; top: 22%; animation-delay: 0s; }
.final-sparks i:nth-child(2) { left: 24%; top: 66%; animation-delay: .7s; width: 4px; height: 4px; }
.final-sparks i:nth-child(3) { left: 38%; top: 34%; animation-delay: 1.3s; width: 5px; height: 5px; }
.final-sparks i:nth-child(4) { left: 52%; top: 76%; animation-delay: 2s; }
.final-sparks i:nth-child(5) { left: 66%; top: 18%; animation-delay: 2.5s; width: 4px; height: 4px; }
.final-sparks i:nth-child(6) { left: 78%; top: 58%; animation-delay: 3.1s; width: 5px; height: 5px; }
.final-sparks i:nth-child(7) { left: 88%; top: 30%; animation-delay: 3.7s; }
.final-sparks i:nth-child(8) { left: 8%; top: 80%; animation-delay: 4.2s; width: 4px; height: 4px; }
@keyframes sparkFloat { 0%, 100% { transform: translateY(0); opacity: .85; } 50% { transform: translateY(-34px); opacity: .35; } }
.final-cta-content { position: relative; z-index: 2; max-width: 980px; margin: 0 auto; text-align: center; padding: 86px 0; }
.final-cta .micro-label { color: rgba(255, 255, 255, .88); }
.final-cta h2 { margin: 26px 0 18px; font-size: clamp(44px, 5vw, 78px); line-height: 1.14; letter-spacing: -.05em; font-weight: 850; }
.final-cta h2 em { color: var(--gold-soft); font-style: normal; }
.final-cta p { color: rgba(255, 255, 255, .88); font-size: 14px; letter-spacing: .14em; }
.final-chips { display: flex; justify-content: center; align-items: center; gap: 14px; margin-top: 26px; color: rgba(255, 255, 255, .82); font-size: 14px; font-weight: 600; }
.final-chips i { width: 5px; height: 5px; border-radius: 50%; background: var(--gold-soft); flex-shrink: 0; }
.final-actions { display: flex; justify-content: center; gap: 16px; margin-top: 34px; }
.final-actions .btn { min-height: 56px; padding: 0 34px; font-size: 15px; }
.final-contact-link { display: inline-flex; width: auto; margin-top: 36px; padding: 0 0 4px; color: rgba(255, 255, 255, .74); font-size: 14px; border: 0; border-bottom: 1px dashed rgba(255, 255, 255, .45); background: transparent; cursor: pointer; transition: color .3s, border-color .3s; }
.final-contact-link:hover { color: var(--surface); border-color: var(--surface); }

/* Footer */
.site-footer { padding: 64px 0 28px; color: var(--text); background: var(--paper-2); border-top: 1px solid var(--line); }
.footer-top { display: grid; grid-template-columns: .7fr 1fr .6fr; gap: 60px; align-items: center; padding-bottom: 55px; }
.footer-top > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.footer-contact { display: grid; gap: 9px; text-align: right; }
.footer-contact span { color: var(--muted); font-size: 14px; letter-spacing: .12em; }
.footer-contact a, .footer-contact button { justify-self: end; padding: 0; border: 0; color: var(--ink); background: transparent; cursor: pointer; font-size: 14px; font-weight: 650; }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; padding-top: 24px; border-top: 1px dashed var(--line-strong); color: var(--muted); font-size: 14px; }

/* Modal */
.modal { position: fixed; inset: 0; z-index: 1000; display: grid; place-items: center; padding: 24px; visibility: hidden; opacity: 0; transition: .35s; }
.modal.is-open { visibility: visible; opacity: 1; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(13, 27, 52, .5); backdrop-filter: blur(10px); }
.modal-panel { position: relative; width: min(680px, 100%); max-height: min(860px, calc(100svh - 36px)); overflow-y: auto; padding: 54px; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 26px; box-shadow: var(--shadow-float); transform: translateY(28px) scale(.98); transition: transform .45s var(--ease); }
.modal.is-open .modal-panel { transform: none; }
.modal-close { position: absolute; right: 18px; top: 16px; z-index: 3; width: 38px; height: 38px; border: 0; background: transparent; color: var(--muted); font-size: 28px; font-weight: 200; cursor: pointer; }
.modal-kicker { background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; font-size: 14px; font-weight: 800; letter-spacing: .16em; }
.modal h2 { margin: 14px 0 8px; font-size: 39px; letter-spacing: -.04em; color: var(--ink); font-weight: 850; }
.modal-desc { margin: 0 0 30px; color: var(--muted); font-size: 14px; }
.apply-types { display: grid; grid-template-columns: repeat(3, 1fr); margin-bottom: 28px; border: 1px solid var(--line-strong); border-radius: 14px; overflow: hidden; }
.apply-types button { height: 48px; border: 0; border-right: 1px solid var(--line-strong); color: var(--muted); background: transparent; cursor: pointer; font-size: 14px; }
.apply-types button:last-child { border-right: 0; }
.apply-types button.active { color: var(--surface); background: var(--ink); }
#applyForm { display: grid; gap: 18px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
#applyForm label:not(.consent) { display: grid; gap: 8px; }
#applyForm label > span { color: var(--muted); font-size: 14px; }
#applyForm input, #applyForm textarea { width: 100%; border: 0; border-bottom: 1px solid var(--line-strong); padding: 11px 0; outline: 0; border-radius: 0; background: transparent; resize: vertical; font-size: 14px; transition: border-color .3s; }
#applyForm input:focus, #applyForm textarea:focus { border-color: var(--cyan); }
.consent { display: flex; align-items: flex-start; gap: 9px; cursor: pointer; }
.consent input { width: auto !important; margin-top: 2px; accent-color: var(--violet); }
.consent span { line-height: 1.5; font-size: 14px; }
.form-submit { margin-top: 6px; }
.demo-tip { color: var(--muted); font-size: 14px; text-align: center; }
.success-step { min-height: 520px; display: none; place-content: center; text-align: center; }
.success-step.is-active { display: grid; }
.form-step.is-hidden { display: none; }
.success-step p { max-width: 430px; margin: 0 auto 30px; color: var(--muted); font-size: 14px; line-height: 1.8; }
.success-orbit { position: relative; width: 130px; height: 130px; display: grid; place-items: center; margin: 0 auto 32px; }
.success-orbit i { position: absolute; inset: 0; border: 1px solid rgba(31, 183, 232, .5); border-radius: 50%; animation: orbitSpin 9s linear infinite; }
.success-orbit i:nth-child(2) { inset: 18px; border-color: rgba(123, 108, 240, .5); animation-direction: reverse; }
.success-orbit span { position: relative; z-index: 2; width: 56px; height: 56px; display: grid; place-items: center; border-radius: 50%; color: var(--surface); background: var(--grad-cta); font-size: 25px; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .85s var(--ease), transform .85s var(--ease); }
.reveal.in-view { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 1100px) {
  .desktop-nav, .header-date { display: none; }
  .site-header { padding-inline: 28px; }
  .header-actions { margin-left: auto; }
  .menu-toggle { display: block; }
  .mobile-menu { display: block; }
  .menu-open .mobile-menu { visibility: visible; opacity: 1; }
  .hero-inner { width: calc(100% - 56px); grid-template-columns: minmax(0, .9fr) minmax(430px, 1.1fr); padding-top: 124px; }
  .hero-copy { max-width: 540px; }
  .hero h1 > span { font-size: clamp(68px, 8.2vw, 88px); }
  .hero-info-card { width: 430px; right: 0; }
  .manifesto-thesis { width: 100%; }
  .manifesto-thesis h2 { font-size: clamp(46px, 5vw, 56px); }
  .manifesto-copy { width: min(560px, 52vw); }
  .manifesto-quote { right: 0; top: 430px; width: 43vw; }
  .manifesto-quote p { font-size: clamp(38px, 4.4vw, 50px); }
  .collage { grid-template-columns: 1fr 1fr; }
  .collage-feature { grid-column: 1 / -1; grid-row: auto; }
  .collage-card:nth-child(2), .collage-card:nth-child(3) { grid-column: auto; }
  .collage-years { grid-column: 1 / 2; }
  .collage-eight { grid-column: 2 / 3; }
  .history-track { min-width: 1040px; }
  .history { overflow-x: auto; }
}

@media (max-width: 760px) {
  :root { --header-h: 68px; }
  .container { width: calc(100% - 40px); }
  .site-header { padding-inline: 20px; }
  .brand-logo { width: 148px; }
  .brand-logo-opcbook { width: 142px; }
  .footer-brand .brand-logo { width: 184px; }
  .brand-copy b { font-size: 16px; }
  .brand-copy small { display: none; }
  .btn-nav { display: none; }
  .hero { min-height: 1080px; }
  .hero-bg { background-image: url("assets/hero-life-mobile-v2.png"); background-position: 50% 0; background-size: cover; transform: none; }
  .hero-veil { background:
    linear-gradient(180deg, rgba(247, 250, 255, .5) 0%, rgba(247, 250, 255, .32) 36%, rgba(247, 250, 255, .02) 54%, rgba(247, 250, 255, .04) 76%, rgba(244, 248, 255, .86) 100%); }
  #sparkCanvas { opacity: .36; }
  .hero-inner { display: block; width: calc(100% - 40px); min-height: 1080px; padding: 106px 0 32px; }
  .hero-copy { max-width: none; padding-top: 0; }
  .hero-kicker { width: 100%; display: grid; grid-template-columns: auto minmax(60px, 1fr); gap: 9px 14px; align-items: center; margin-bottom: 24px; font-size: 13px; line-height: 1.2; letter-spacing: .13em; white-space: nowrap; }
  .hero-kicker span:first-child { grid-column: 1; grid-row: 1; }
  .hero-kicker i { grid-column: 2; grid-row: 1; width: min(96px, 100%); }
  .hero-kicker span:last-child { grid-column: 1 / -1; grid-row: 2; max-width: none; font-size: 12px; line-height: 1.25; letter-spacing: .12em; }
  .hero h1 { line-height: .96; letter-spacing: -.055em; }
  .hero h1 > span { font-size: clamp(50px, 14.2vw, 56px); }
  .hero h1 .title-accent { margin-top: 6px; }
  .hero-subtitle { max-width: none; margin-top: 22px; padding-top: 17px; font-size: 14px; line-height: 1.65; letter-spacing: .025em; }
  .hero-subtitle small { margin-top: 4px; font-size: 14px; }
  .hero-cta { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
  .hero-cta .btn,
  .hero-partner-link { width: 100%; min-width: 0; min-height: 52px; padding: 0 16px; justify-content: center; border-radius: 999px; font-size: 14px; }
  .hero-partner-link { gap: 14px; border: 1px solid rgba(13, 27, 52, .25); background: rgba(255, 255, 255, .38); backdrop-filter: blur(10px); }
  .hero-audience { display: none; }
  .hero-info-card { left: 0; right: auto; bottom: 42px; width: 100%; padding: 20px 20px 18px; border-radius: 22px; background: rgba(250, 252, 255, .66); }
  .hero-info-topline { padding-bottom: 14px; letter-spacing: .08em; }
  .hero-info-topline b { letter-spacing: .04em; }
  .hero-info-grid { grid-template-columns: 1fr 1fr; }
  .hero-info-item { padding: 16px 10px 15px 0; }
  .hero-info-item + .hero-info-item { padding-left: 16px; }
  .hero-info-item strong { font-size: 18px; }
  .hero-info-countdown { padding-top: 16px; gap: 10px; }
  .countdown { gap: 10px; }
  .countdown strong { font-size: 24px; }
  .hero-scroll-cue { display: none; }
  .marquee { padding: 26px 0; }
  .marquee-track { gap: 22px; }
  .marquee-track span { font-size: 30px; }
  .display-heading { font-size: 37px; }
  .highlights, .agenda, .guests, .competition, .history { padding: 82px 0; }
  .intro-row, .history-heading, .organizers-head { grid-template-columns: 1fr; gap: 35px; padding: 58px 0 66px; }
  .manifesto { min-height: 1540px; padding: 62px 0 48px; }
  .manifesto-stage { width: calc(100% - 40px); min-height: 1430px; }
  .manifesto-head { align-items: flex-start; }
  .manifesto-narrative { min-height: 1110px; }
  .manifesto-thesis { width: 100%; padding-top: 42px; }
  .manifesto-thesis h2 { font-size: clamp(32px, 8.8vw, 36px); line-height: 1.22; letter-spacing: -.035em; text-wrap: balance; }
  .manifesto-thesis h2 > span { display: inline; }
  .manifesto-thesis h2 > span + span::before { content: " "; }
  .manifesto-thesis h2 em { display: inline; }
  .manifesto-copy { width: 100%; margin-top: 30px; }
  .manifesto-copy p { margin-bottom: 18px; font-size: 14px; line-height: 1.86; }
  .manifesto-quote { left: 0; right: auto; top: 760px; width: 100%; padding: 28px 0; }
  .quote-mark { left: 0; top: -26px; font-size: 62px; }
  .manifesto-quote p { font-size: clamp(38px, 10.8vw, 46px); line-height: 1.22; }
  .manifesto-quote footer { margin-top: 20px; }
  .stats.manifesto-axis { grid-template-columns: 1fr 1fr; border-top: 1px solid rgba(75, 106, 171, .16); }
  .manifesto-axis .stat { min-height: 148px; padding: 24px 10px 24px 0; }
  .manifesto-axis .stat:nth-child(even) { padding-left: 16px; }
  .manifesto-axis .stat strong { font-size: 42px; }
  .manifesto-axis .stat::after { left: 6px; }
  .collage { grid-template-columns: 1fr; }
  .collage-card, .collage-feature, .collage-years, .collage-eight { grid-column: 1; margin-top: 0; min-height: auto; }
  .collage-feature { min-height: 0; }
  .collage-art-lg { height: 320px; }
  .collage-art { height: 210px; }
  .collage-years { margin-top: 0; }
  .anniversary-eight { font-size: 160px; }
  .agenda-header { grid-template-columns: 1fr; gap: 25px; padding: 58px 0 38px; }
  .agenda-meta { text-align: left; }
  .agenda-tabs { border-radius: 20px; padding: 6px; grid-template-columns: 1fr; gap: 6px; }
  .agenda-tabs button { height: 52px; font-size: 14px; border-radius: 16px; }
  .agenda-tabs button span { display: none; }
  .agenda-panel article { grid-template-columns: 62px 12px 1fr; gap: 14px; min-height: 152px; }
  .agenda-panel article time { font-size: 18px; }
  .agenda-panel article > b { display: none; }
  .agenda-panel h3 { font-size: 16px; }
  .agenda-dot::after { height: 138px; }
  .guest-intro { grid-template-columns: 1fr; gap: 35px; padding: 58px 0 48px; }
  .guest-cards { grid-template-columns: 1fr; gap: 16px; }
  .guest-card, .guest-card-offset { grid-template-columns: 82px 1fr; gap: 3px 20px; min-height: 168px; padding: 24px 20px; transform: none; }
  .guest-thumb { width: 82px; height: 82px; grid-row: span 3; }
  .guest-card p { display: none; }
  .guest-card h3 { font-size: 21px; }
  .guest-badge { right: 16px; top: 16px; padding: 5px 11px; }
  .guest-more { grid-column: 1; flex-direction: column; align-items: flex-start; padding: 26px 24px; }
  .competition-grid { grid-template-columns: 1fr; gap: 60px; padding: 60px 0; }
  .competition-copy h2 { font-size: 46px; }
  .competition-art img { height: 230px; }
  .competition-benefits { padding: 22px; flex-wrap: wrap; justify-content: center; gap: 16px; }
  .competition-benefits i { display: none; }
  .history { overflow: hidden; }
  .history-track { min-width: 0; grid-template-columns: 1fr; gap: 0; padding: 30px 0 20px; }
  .history-line { left: 19px; top: 0; bottom: 0; right: auto; width: 2px; height: auto; background-image: linear-gradient(180deg, rgba(13, 27, 52, .3) 45%, transparent 45%); background-size: 2px 14px; background-repeat: repeat-y; }
  .history-line i { width: 2px; height: 20%; background-image: none; }
  .history-track article { padding: 0 0 34px 58px; text-align: left; }
  .history-track article > span { position: absolute; left: 14px; top: 14px; transform: none; }
  .history-track article.up .history-card, .history-track article.down .history-card { transform: none; }
  .history-card { padding: 18px; }
  .organizers { padding-bottom: 82px; }
  .org-group { grid-template-columns: 1fr; gap: 18px; min-height: 0; padding: 28px 0; }
  .org-list { gap: 14px 24px; }
  .org-name { min-height: 48px; max-width: 100%; font-size: 14px; }
  .org-logo { height: 58px; min-width: 142px; }
  .org-logo-rwari { min-width: 216px; height: 64px; }
  .org-logo-opctalk { min-width: 230px; }
  .final-cta { min-height: 560px; }
  .final-cta-art { width: 92%; right: -22%; opacity: .35; }
  .final-cta h2 { font-size: 44px; }
  .final-chips { flex-wrap: wrap; gap: 10px 14px; }
  .final-actions .btn { min-height: 52px; padding: 0 26px; }
  .final-actions { flex-direction: column; }
  .footer-top { grid-template-columns: 1fr; gap: 34px; }
  .footer-contact { text-align: left; }
  .footer-contact button { justify-self: start; }
  .footer-bottom { flex-direction: column; gap: 9px; }
  .modal { padding: 10px; }
  .modal-panel { padding: 44px 22px 30px; max-height: calc(100svh - 20px); }
  .modal h2 { font-size: 32px; }
  .field-row { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* V6 continuum — selected highlights concept + restrained closing chapters */
:root { --container: 1520px; }
.container { width: min(var(--container), calc(100% - 64px)); }
main { position: relative; background: #f5f8ff; }
main > section { isolation: isolate; scroll-margin-top: 70px; }
.agenda > .container,
.guests > .container,
.competition > .container,
.history > .container,
.organizers > .container { position: relative; z-index: 2; }
.section-head { border-bottom-style: solid; border-bottom-color: rgba(60, 85, 137, .14); }
.agenda .chapter-no,
.guests .chapter-no,
.competition .chapter-no,
.history .chapter-no { font-size: clamp(50px, 5vw, 76px); -webkit-text-stroke-color: rgba(59, 84, 136, .14); }

/* Highlights — one continuous living signal, never a card wall */
.highlights {
  min-height: 1020px;
  padding: 56px 0 60px;
  background: #f5f8ff;
}
.highlights::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(244, 248, 255, .98) 0%, rgba(244, 248, 255, .2) 24%, rgba(244, 248, 255, .04) 76%, #f6f9ff 100%);
}
.highlights::after,
.agenda::after,
.guests::after,
.competition::after,
.history::after,
.organizers::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  z-index: 4;
  height: 100px;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(247, 250, 255, .94));
}
.signal-river-art { position: absolute; inset: 124px 0 0; z-index: 0; margin: 0; overflow: hidden; pointer-events: none; }
.signal-river-art img { width: 100%; height: 850px; display: block; object-fit: cover; object-position: 50% 50%; filter: saturate(1.04) contrast(1.01); animation: signalBreathe 10s ease-in-out infinite alternate; }
@keyframes signalBreathe { to { transform: scale(1.016) translate3d(4px, -4px, 0); } }
.highlights-stage { position: relative; z-index: 2; }
.highlights .section-head { position: relative; z-index: 3; }
.signal-intro { position: relative; z-index: 3; width: min(760px, 55vw); padding-top: 58px; }
.signal-intro .display-heading { font-size: clamp(48px, 4vw, 64px); line-height: 1.14; }
.signal-intro > p { max-width: 620px; margin: 28px 0 0; color: var(--muted); font-size: 15px; line-height: 1.9; }
.signal-map { position: relative; z-index: 3; min-height: 590px; margin-top: -18px; }
.signal-node {
  position: absolute;
  max-width: 340px;
  padding: 18px 18px 18px 22px;
  border-left: 1px solid rgba(80, 111, 180, .32);
  background: rgba(248, 251, 255, .34);
  backdrop-filter: blur(8px) saturate(1.08);
  text-shadow: 0 2px 18px rgba(255, 255, 255, .95);
  transition: transform .45s var(--ease), border-color .35s, background .35s;
}
.signal-node::before { content: ""; position: absolute; left: -5px; top: 22px; width: 8px; height: 8px; border-radius: 50%; background: #7b6cf0; box-shadow: 0 0 0 4px rgba(255,255,255,.72), 0 0 18px rgba(123,108,240,.72); }
.signal-node:hover,
.signal-node:focus-visible { transform: translateY(-8px); border-left-color: rgba(31, 183, 232, .82); background: rgba(255, 255, 255, .66); outline: 0; }
.signal-index { display: flex; align-items: baseline; gap: 8px; color: var(--muted); font-size: 14px; line-height: 1.4; letter-spacing: .11em; font-weight: 650; }
.signal-index b { color: #4d83ef; font-size: 42px; line-height: .8; letter-spacing: -.05em; font-weight: 500; }
.signal-node h3 { margin: 17px 0 9px; color: var(--ink); font-size: 24px; line-height: 1.35; letter-spacing: -.025em; }
.signal-node p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.signal-node-primary { left: 17%; top: 110px; max-width: 330px; }
.signal-node-primary h3 { font-size: 28px; }
.signal-node-life { right: 2%; top: 18px; max-width: 280px; }
.signal-node-opc { right: 8%; top: 190px; max-width: 320px; }
.signal-node-years { left: 34%; bottom: 70px; max-width: 500px; }
.signal-node-eight { right: 1%; bottom: 0; max-width: 345px; }
.signal-years { display: flex; align-items: center; gap: 20px; margin: 22px 0 15px; }
.signal-years > div { display: flex; gap: 10px; align-items: end; }
.signal-years strong { font-size: 58px; line-height: .8; letter-spacing: -.05em; font-weight: 600; background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; }
.signal-years span { color: var(--muted); font-size: 14px; line-height: 1.45; letter-spacing: .05em; }
.signal-years > i { width: 1px; height: 42px; background: rgba(70, 95, 151, .2); }
.signal-eight { display: flex; align-items: flex-start; float: left; margin: 13px 18px 4px 0; background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; }
.signal-eight strong { font-size: 82px; line-height: .78; letter-spacing: -.08em; }
.signal-eight span { margin: 4px 0 0 5px; font-size: 18px; font-weight: 800; }
.signal-node-eight h3 { margin-top: 22px; font-size: 22px; }

/* Closing chapters — editorial, calm, and easy to scan */
.agenda { padding: 112px 0 122px; background: #f7faff; }
.agenda-word { top: 16%; right: 1vw; font-size: 13vw; transform: none; -webkit-text-stroke-color: rgba(65, 92, 151, .045); }
.agenda-header { padding: 72px 0 44px; }
.agenda-tabs { gap: 0; padding: 0; border-width: 1px 0; border-radius: 0; background: transparent; }
.agenda-tabs button { height: 64px; border-radius: 0; }
.agenda-tabs button::after { content: ""; position: absolute; left: 24%; right: 76%; bottom: -1px; height: 2px; background: var(--grad-cta); transition: right .35s var(--ease); }
.agenda-tabs button.active { color: var(--ink); background: transparent; box-shadow: none; }
.agenda-tabs button.active::after { right: 24%; }
.agenda-panels { min-height: 500px; }
.agenda-panel article { min-height: 118px; border-bottom-style: solid; border-bottom-color: rgba(59, 85, 142, .13); }
.agenda-panel article:hover { padding-left: 14px; background: rgba(255,255,255,.44); }

.guests { padding: 112px 0 120px; background: #f2f7ff; }
.guests::before { opacity: .52; }
.guest-intro { padding: 72px 0 56px; }
.guest-cards { grid-template-columns: repeat(4, 1fr); gap: 0; border-bottom: 1px solid rgba(63, 89, 146, .15); }
.guest-card,
.guest-card-offset {
  display: block;
  min-height: 408px;
  padding: 22px 20px 30px;
  border: 0;
  border-top: 1px solid rgba(63, 89, 146, .18);
  border-right: 1px solid rgba(63, 89, 146, .12);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  transform: none;
}
.guest-card:first-child { border-left: 1px solid rgba(63, 89, 146, .12); }
.guest-card:hover { border-color: rgba(63, 89, 146, .2); box-shadow: none; background: rgba(255,255,255,.46); }
.guest-thumb { width: 100%; height: 220px; margin-bottom: 24px; border: 0; border-radius: 2px; box-shadow: none; transform: none; }
.guest-card small,
.guest-card h3,
.guest-card p { grid-column: auto; }
.guest-card h3 { margin-top: 10px; font-size: 23px; }
.guest-card p { margin-top: 10px; line-height: 1.65; }
.guest-badge { top: 36px; right: 34px; background: rgba(248,251,255,.72); backdrop-filter: blur(8px); }
.guest-more { grid-column: 1 / -1; min-height: 126px; margin-top: 28px; padding: 24px 0; border: 0; border-top: 1px solid rgba(63, 89, 146, .16); border-bottom: 1px solid rgba(63, 89, 146, .16); border-radius: 0; background: transparent; }

.competition { padding: 112px 0 118px; background: #f7faff; }
.competition-grid { gap: clamp(70px, 9vw, 150px); padding: 74px 0 58px; }
.competition-numbers article { min-height: 108px; border-bottom-style: solid; border-bottom-color: rgba(60, 87, 147, .14); }
.competition-art { margin-top: 8px; border-radius: 18px; box-shadow: 0 24px 70px rgba(66, 92, 150, .12); transform: none; }
.competition-art img { height: 390px; object-position: 50% 54%; }
.competition-benefits { min-height: 82px; padding: 0 20px; border: 0; border-top: 1px solid rgba(60,87,147,.16); border-bottom: 1px solid rgba(60,87,147,.16); border-radius: 0; background: transparent; }

.history { position: relative; padding: 112px 0 128px; overflow: hidden; background: #f3f8ff; }
.history-heading { padding: 72px 0 88px; }
.history-track { gap: 28px; }
.history-card,
.history-track article.future .history-card {
  padding: 20px 6px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: var(--text);
}
.history-card:hover { box-shadow: none; }
.history-track article.up .history-card,
.history-track article.down .history-card { transform: none; }
.history-track article.future .history-card { border-top: 2px solid #7b6cf0; }
.history-track article.future .history-card time { color: #5d61d9; }
.history-track article.future .history-card small,
.history-track article.future .history-card p { color: var(--muted); }
.history-track article.future .history-card h3 { color: var(--ink); }

.organizers { position: relative; padding: 20px 0 106px; background: #f7faff; }
.organizers-head { padding-top: 72px; }
.org-group { min-height: 116px; }

.final-cta {
  min-height: 650px;
  place-items: stretch;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 32%, rgba(255,224,168,.22) 0%, rgba(123,108,240,.13) 11%, rgba(31,183,232,.08) 24%, transparent 44%),
    radial-gradient(circle at 80% 48%, rgba(255,255,255,.96) 0%, rgba(228,239,255,.82) 24%, rgba(224,235,255,.24) 48%, transparent 68%),
    linear-gradient(115deg, #eef6ff 0%, #eaf3ff 48%, #e8f0ff 100%);
}
.final-cta::before { opacity: .28; background-image: radial-gradient(rgba(97, 119, 174, .22) 1px, transparent 1px); }
.final-cta-art {
  top: 50%;
  right: 0;
  bottom: auto;
  width: auto;
  height: calc(100% - 48px);
  transform: translateY(-50%);
  opacity: .80;
  mix-blend-mode: normal;
  mask-image: none;
}
.final-cta-art img {
  width: auto;
  height: 100%;
  object-fit: contain;
  filter: saturate(.86) brightness(1.04) drop-shadow(0 22px 46px rgba(94, 120, 214, .14));
}
.final-word { color: transparent; -webkit-text-stroke-color: rgba(67, 91, 145, .12); }
.final-sparks { opacity: .7; }
.final-cta-content { display: grid; align-content: center; width: min(var(--container), calc(100% - 64px)); max-width: none; margin: 0 auto; padding: 96px 0; text-align: left; }
.final-cta-content > * { width: min(720px, 53vw); }
.final-cta .micro-label { color: #60708d; }
.final-cta h2 { margin: 25px 0 18px; color: var(--ink); font-size: clamp(48px, 5.1vw, 76px); text-wrap: balance; text-shadow: 0 3px 22px rgba(238,246,255,.98); }
.final-cta h2 > span { display: block; white-space: nowrap; }
.final-cta h2 em { background: var(--grad-title); -webkit-background-clip: text; background-clip: text; color: transparent; }
.final-cta p { color: var(--muted); }
.final-chips { justify-content: flex-start; color: var(--muted); }
.final-actions { justify-content: flex-start; }
.final-actions .btn-light { color: #fff; background: var(--grad-cta); box-shadow: 0 14px 34px rgba(87,105,215,.28); }
.final-actions .btn-outline-light { color: var(--ink); border-color: rgba(13,27,52,.28); background: rgba(255,255,255,.38); }
.final-actions .btn-outline-light:hover { color: var(--ink); background: rgba(255,255,255,.72); border-color: rgba(13,27,52,.5); }
.final-contact-link { color: var(--muted); border-bottom-color: rgba(13,27,52,.28); }
.final-contact-link:hover { color: var(--ink); border-bottom-color: var(--ink); }

.site-footer { padding-top: 56px; background: #f8fbff; }
.footer-top { grid-template-columns: .75fr 1.2fr .7fr; padding-bottom: 42px; }

@media (max-width: 1100px) {
  .signal-river-art { top: 240px; }
  .signal-river-art img { height: 920px; object-position: 55% 50%; opacity: .84; }
  .highlights { min-height: auto; }
  .signal-intro { width: min(760px, 78vw); }
  .signal-map { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; min-height: 0; padding-top: 410px; margin-top: 0; }
  .signal-node,
  .signal-node-primary,
  .signal-node-life,
  .signal-node-opc,
  .signal-node-years,
  .signal-node-eight { position: relative; inset: auto; max-width: none; background: rgba(250,252,255,.72); }
  .signal-node-primary,
  .signal-node-years { grid-column: 1 / -1; }
  .guest-cards { grid-template-columns: 1fr 1fr; }
  .guest-card:nth-child(odd) { border-left: 1px solid rgba(63, 89, 146, .12); }
  .final-cta-art { right: -4%; width: auto; height: calc(100% - 40px); opacity: .72; }
  .final-cta-content > * { width: min(650px, 62vw); }
}

@media (max-width: 760px) {
  .container,
  .final-cta-content { width: calc(100% - 40px); }
  .highlights { padding: 56px 0 64px; }
  .signal-river-art { top: 300px; height: 740px; }
  .signal-river-art img { height: 740px; object-position: 59% 50%; opacity: .78; }
  .signal-intro { width: 100%; padding-top: 42px; }
  .signal-intro .display-heading { font-size: clamp(40px, 11vw, 48px); }
  .signal-intro > p { font-size: 14px; line-height: 1.82; }
  .signal-map { grid-template-columns: 1fr; gap: 12px; padding-top: 360px; }
  .signal-node-primary,
  .signal-node-years { grid-column: auto; }
  .signal-node { padding: 18px 16px 18px 20px; backdrop-filter: blur(12px); }
  .signal-index b { font-size: 34px; }
  .signal-node h3,
  .signal-node-primary h3 { font-size: 22px; }
  .signal-node p { line-height: 1.68; }
  .signal-node-eight { display: grid; grid-template-columns: 78px 1fr; column-gap: 12px; align-items: start; }
  .signal-node-eight .signal-index { grid-column: 1 / -1; }
  .signal-node-eight .signal-eight { grid-column: 1; grid-row: 2 / 4; float: none; margin: 18px 0 0; }
  .signal-node-eight h3 { grid-column: 2; grid-row: 2; margin: 18px 0 8px; font-size: 20px; }
  .signal-node-eight p { grid-column: 1 / -1; grid-row: 4; margin-top: 10px; }
  .signal-years { gap: 12px; }
  .signal-years strong { font-size: 48px; }
  .signal-years > i { height: 34px; }
  .agenda,
  .guests,
  .competition,
  .history { padding: 78px 0 86px; }
  .agenda-header,
  .guest-intro,
  .history-heading { padding-top: 52px; }
  .agenda-tabs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-bottom: 1px solid rgba(60,87,147,.16);
  }
  .agenda-tabs button {
    min-width: 0;
    height: 58px;
    padding: 0 4px;
    border-bottom: 0;
    font-size: 14px;
    white-space: nowrap;
  }
  .agenda-tabs button + button { border-left: 1px solid rgba(60,87,147,.11); }
  .agenda-panel.active { animation: none; }
  .agenda-panel article,
  .agenda-panel article:hover,
  .agenda-panel article:focus-within {
    padding-left: 0;
    background: transparent;
    transform: none;
    transition: none;
  }
  .guest-cards { grid-template-columns: 1fr; }
  .guest-card,
  .guest-card-offset { display: grid; grid-template-columns: 96px 1fr; gap: 4px 18px; min-height: 164px; padding: 20px 0; border-right: 0; border-left: 0 !important; }
  .guest-thumb { width: 96px; height: 104px; grid-row: span 3; margin: 0; }
  .guest-card p { display: block; }
  .guest-badge { top: 28px; right: 6px; }
  .competition-grid { gap: 48px; padding-top: 52px; }
  .competition-art img { height: 260px; }
  .competition-benefits { justify-content: flex-start; padding: 22px 0; }
  .history-track {
    display: flex;
    gap: 14px;
    width: calc(100% + 40px);
    min-width: 0;
    margin-left: -20px;
    padding: 8px 20px 24px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-padding-inline: 20px;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .history-track::-webkit-scrollbar { display: none; }
  .history-line { display: none; }
  .history-track article {
    flex: 0 0 min(78vw, 300px);
    padding: 22px 0 0;
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }
  .history-track article > span {
    left: 0;
    top: 0;
    transform: none;
  }
  .history-card,
  .history-track article.future .history-card {
    min-height: 220px;
    padding: 24px 22px;
    border: 1px solid rgba(64,91,150,.15);
    border-radius: 20px;
    background: rgba(248,251,255,.84);
    box-shadow: 0 18px 42px rgba(65,90,150,.09);
  }
  .history-track article.future .history-card { border-top: 2px solid #7b6cf0; }
  .final-cta { min-height: 720px; align-items: start; }
  .final-cta-art { top: auto; right: -18%; bottom: 12px; width: 108%; height: auto; transform: none; opacity: .58; mask-image: none; }
  .final-cta-art img { width: 100%; height: auto; }
  .final-cta-content { align-content: start; padding: 82px 0 300px; }
  .final-cta-content > * { width: 100%; }
  .final-cta h2 { font-size: clamp(42px, 12vw, 52px); }
  .final-cta h2 > span { white-space: normal; }
  .final-chips { justify-content: flex-start; }
  .final-actions { align-items: stretch; }
  .footer-top { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .signal-river-art img { animation: none !important; }
}

/* V7 third screen reset — asymmetric editorial field + continuous signal rail */
.highlights {
  min-height: 960px;
  padding: 54px 0 76px;
  background: #f6f9ff;
}
.highlights::before { background: none; }
.signal-river-art {
  inset: auto;
  top: 116px;
  right: -3.5%;
  width: min(900px, 62vw);
  height: 560px;
  overflow: hidden;
  opacity: .92;
  mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,.78) 20%, #000 48%, #000 86%, transparent 100%);
}
.signal-river-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 76% 48%;
  filter: saturate(.96) contrast(1.02);
}
.signal-river-art picture { display: block; width: 100%; height: 100%; }
.signal-intro {
  width: min(1020px, 78vw);
  min-height: 520px;
  padding-top: 62px;
}
.signal-intro .display-heading {
  font-size: clamp(48px, 4vw, 62px);
  line-height: 1.12;
}
.signal-intro .display-heading > span { display: block; white-space: nowrap; }
.signal-intro > p {
  max-width: 560px;
  margin-top: 28px;
  font-size: 15px;
  line-height: 1.86;
}
.signal-map {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.08fr 1.35fr 1.12fr;
  min-height: 0;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(64, 91, 150, .2);
  border-bottom: 1px solid rgba(64, 91, 150, .15);
}
.signal-node,
.signal-node-primary,
.signal-node-life,
.signal-node-opc,
.signal-node-years,
.signal-node-eight {
  position: relative;
  inset: auto;
  max-width: none;
  min-width: 0;
  min-height: 218px;
  padding: 30px 20px 24px;
  border: 0;
  border-left: 1px solid rgba(64, 91, 150, .14);
  background: transparent;
  backdrop-filter: none;
  text-shadow: none;
  transform: none;
}
.signal-node:first-child { border-left: 0; padding-left: 0; }
.signal-node:last-child { padding-right: 0; }
.signal-node::before {
  left: 19px;
  top: -5px;
  width: 8px;
  height: 8px;
  background: #6d7cf0;
  box-shadow: 0 0 0 4px #f6f9ff, 0 0 16px rgba(109,124,240,.55);
}
.signal-node:first-child::before { left: 0; }
.signal-node:hover,
.signal-node:focus-visible {
  transform: none;
  background: rgba(255, 255, 255, .34);
  outline: 0;
}
.signal-index {
  display: block;
  color: #66738d;
  font-size: 14px;
  line-height: 1.4;
  letter-spacing: .1em;
}
.signal-index b {
  display: block;
  margin-bottom: 9px;
  color: #4f7fe7;
  font-size: 31px;
  line-height: .9;
  letter-spacing: -.04em;
  font-weight: 520;
}
.signal-node h3,
.signal-node-primary h3,
.signal-node-eight h3 {
  margin: 18px 0 9px;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.36;
  letter-spacing: -.02em;
}
.signal-node-primary h3 { font-size: 23px; }
.signal-node p {
  margin: 0;
  color: #68758e;
  font-size: 14px;
  line-height: 1.68;
}
.signal-years {
  gap: 11px;
  margin: 20px 0 12px;
}
.signal-years > div { gap: 7px; }
.signal-years strong { font-size: 40px; }
.signal-years span { font-size: 14px; line-height: 1.35; }
.signal-years > i { height: 31px; }
.signal-node-eight {
  display: grid;
  grid-template-columns: 64px 1fr;
  column-gap: 10px;
  align-content: start;
}
.signal-node-eight .signal-index { grid-column: 1 / -1; }
.signal-node-eight .signal-eight {
  grid-column: 1;
  grid-row: 2 / 4;
  float: none;
  margin: 19px 0 0;
}
.signal-node-eight .signal-eight strong { font-size: 60px; }
.signal-node-eight h3 {
  grid-column: 2;
  grid-row: 2;
  margin-top: 20px;
  font-size: 18px;
}
.signal-node-eight p {
  grid-column: 1 / -1;
  grid-row: 4;
  margin-top: 10px;
}

@media (max-width: 1100px) {
  .signal-river-art {
    top: 152px;
    right: -14%;
    width: 74vw;
    height: 500px;
  }
  .signal-intro { width: 100%; min-height: 500px; }
  .signal-map {
    grid-template-columns: 1.35fr 1fr 1fr;
  }
  .signal-node,
  .signal-node-primary,
  .signal-node-life,
  .signal-node-opc,
  .signal-node-years,
  .signal-node-eight {
    min-height: 210px;
    padding: 28px 18px 24px;
    border-top: 1px solid rgba(64,91,150,.12);
    background: transparent;
  }
  .signal-node:nth-child(-n+3) { border-top: 0; }
  .signal-node-years { grid-column: 1 / 3; border-left: 0; padding-left: 0; }
  .signal-node-eight { grid-column: 3; }
}

@media (max-width: 760px) {
  .highlights { min-height: 0; padding: 46px 0 62px; }
  .signal-river-art {
    top: 372px;
    left: 0;
    right: 0;
    width: 100%;
    height: 330px;
    opacity: .82;
    mask-image: linear-gradient(180deg, transparent 0%, #000 18%, #000 78%, transparent 100%);
  }
  .signal-river-art img { object-position: 70% 44%; opacity: .92; }
  .signal-intro {
    width: 100%;
    min-height: 620px;
    padding-top: 40px;
  }
  .signal-intro .display-heading {
    font-size: clamp(38px, 10.6vw, 45px);
    line-height: 1.14;
  }
  .signal-intro .display-heading > span { white-space: normal; }
  .signal-intro > p { margin-top: 24px; line-height: 1.78; }
  .signal-map {
    display: flex;
    gap: 12px;
    width: calc(100% + 40px);
    margin-left: -20px;
    padding: 4px 20px 18px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-padding-inline: 20px;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    border-bottom: 0;
    -webkit-overflow-scrolling: touch;
  }
  .signal-map::-webkit-scrollbar { display: none; }
  .signal-node,
  .signal-node-primary,
  .signal-node-life,
  .signal-node-opc,
  .signal-node-years,
  .signal-node-eight {
    display: block;
    position: relative;
    inset: auto;
    flex: 0 0 min(82vw, 310px);
    max-width: none;
    min-height: 250px;
    padding: 24px 22px 26px;
    border: 1px solid rgba(64,91,150,.15);
    border-radius: 22px;
    background: rgba(248,251,255,.84);
    box-shadow: 0 18px 42px rgba(65,90,150,.1);
    backdrop-filter: blur(14px);
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }
  .signal-node:first-child {
    padding-left: 22px;
    border-left: 1px solid rgba(64,91,150,.15);
  }
  .signal-node:last-child { padding-right: 22px; }
  .signal-node::before,
  .signal-node:first-child::before { left: 22px; top: -5px; }
  .signal-index { display: flex; align-items: baseline; gap: 9px; }
  .signal-index b { display: inline; margin: 0; font-size: 28px; }
  .signal-node h3,
  .signal-node-primary h3,
  .signal-node-eight h3 { margin-top: 15px; font-size: 21px; }
  .signal-node p { max-width: none; }
  .signal-node-eight .signal-eight { display: inline-flex; float: none; margin: 16px 14px 0 0; }
  .signal-node-eight .signal-eight strong { font-size: 58px; }
  .signal-node-eight h3 { display: block; width: auto; margin-top: 15px; }
  .signal-node-eight p { margin-top: 12px; }
}

/* The lifeform is now real right-side content; the title uses the remaining editorial field. */
.final-cta-content > h2 { width: min(900px, 72vw); max-width: none; }
@media (max-width: 760px) {
  .final-cta-content > h2 { width: 100%; }
}

/* Home guest roster — dense six-column portrait matrix for a large roster. */
.guest-showcase {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 54px 28px;
  padding: 10px 0 6px;
}
.home-guest-card { position: relative; min-width: 0; text-align: center; }
.home-guest-card:nth-child(even) { transform: none; }
.home-guest-card figure {
  position: relative;
  width: min(100%, 154px);
  aspect-ratio: 1;
  margin: 0 auto;
  overflow: hidden;
  border: 4px solid rgba(255,255,255,.86);
  border-radius: 50%;
  background: linear-gradient(145deg, #e9f2ff, #f8fbff);
  box-shadow: 0 18px 42px rgba(55, 82, 143, .16), 0 0 0 1px rgba(91, 114, 170, .14);
}
.home-guest-card figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: 50%;
  background: linear-gradient(150deg, rgba(255,255,255,.18), transparent 48%, rgba(57,89,158,.12));
}
.home-guest-card img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: 50% 24%;
  filter: saturate(.82) contrast(.98);
  transition: transform .65s var(--ease), filter .5s ease;
}
.home-guest-card:hover img { transform: scale(1.025); filter: saturate(.96) contrast(1); }
.home-guest-card > div { position: relative; min-height: 132px; padding: 18px 0 0; }
.home-guest-card small { display: block; min-height: 40px; color: var(--muted); font-size: 14px; line-height: 1.4; letter-spacing: .08em; }
.home-guest-card h3 { margin: 8px 0 8px; color: var(--ink); font-family: var(--serif); font-size: 24px; line-height: 1.1; letter-spacing: -.035em; }
.home-guest-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.home-guest-card > div > span {
  display: none;
}
.guest-directory-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  margin-top: 88px;
  padding: 30px 0;
  border-top: 1px solid rgba(63, 89, 146, .18);
  border-bottom: 1px solid rgba(63, 89, 146, .18);
}
.guest-directory-cta span { color: var(--muted); font-size: 14px; letter-spacing: .14em; font-weight: 700; }
.guest-directory-cta h3 { margin: 8px 0 4px; color: var(--ink); font-family: var(--serif); font-size: 28px; line-height: 1.2; }
.guest-directory-cta p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.guest-directory-cta .btn { flex-shrink: 0; min-width: 206px; }
.guest-directory-cta .btn b { margin-left: 12px; }

@media (max-width: 1100px) {
  .guest-showcase { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 46px 24px; }
  .home-guest-card:nth-child(even) { transform: none; }
}

@media (max-width: 760px) {
  .guest-showcase { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 30px 8px; }
  .home-guest-card figure { width: min(100%, 74px); border-width: 3px; box-shadow: 0 10px 26px rgba(55,82,143,.14), 0 0 0 1px rgba(91,114,170,.12); }
  .home-guest-card > div { min-height: 92px; padding: 10px 0 0; }
  .home-guest-card small { display: none; }
  .home-guest-card h3 { margin: 0 0 6px; font-size: 16px; line-height: 1.1; }
  .home-guest-card p { display: -webkit-box; overflow: hidden; min-height: 32px; font-size: 11px; line-height: 1.42; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
  .guest-directory-cta { align-items: stretch; flex-direction: column; gap: 24px; margin-top: 54px; padding: 26px 0; }
  .guest-directory-cta .btn { width: 100%; }
}

/* Mobile manifesto — natural content flow, without desktop's fixed stage gaps. */
@media (max-width: 760px) {
  .manifesto {
    min-height: 0;
    padding: 54px 0 58px;
  }
  .manifesto-stage {
    min-height: 0;
  }
  .manifesto-narrative {
    min-height: 0;
  }
  .manifesto-thesis {
    padding-top: 40px;
  }
  .manifesto-quote {
    position: relative;
    inset: auto;
    width: 100%;
    margin-top: 46px;
    padding: 58px 0 0;
    border-top: 1px solid rgba(75,106,171,.16);
  }
  .manifesto-quote .quote-mark {
    left: 0;
    top: 20px;
    font-size: 54px;
  }
  .manifesto-quote p {
    font-size: clamp(34px, 9.4vw, 40px);
    line-height: 1.22;
  }
  .stats.manifesto-axis {
    position: relative;
    inset: auto;
    margin-top: 52px;
    border-top: 1px solid rgba(75,106,171,.16);
    border-bottom: 1px solid rgba(75,106,171,.16);
  }
  .manifesto-axis .stat {
    min-height: 142px;
    padding: 24px 8px;
  }
  .manifesto-axis .stat:nth-child(even) {
    padding-left: 8px;
    border-left: 1px solid rgba(75,106,171,.12);
  }
  .manifesto-axis .stat:nth-child(n+3) {
    border-top: 1px solid rgba(75,106,171,.12);
  }
  .manifesto-axis .stat::after { display: none; }
}