:root {
  --red: #f52235;
  --red-hot: #ff3d1f;
  --orange: #ff7900;
  --magenta: #ff3d79;
  --yellow: #ffd447;
  --red-deep: #c70d20;
  --ink: #171211;
  --cream: #f8f1e8;
  --paper: #fffaf4;
  --pink: #f7d8d4;
  --line: rgba(23, 18, 17, 0.16);
  --muted: #766b67;
  --radius: 28px;
  --page: min(1240px, calc(100vw - 80px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.skip-link { position: fixed; top: -80px; left: 16px; z-index: 100; padding: 10px 18px; background: #fff; color: #000; border-radius: 8px; }
.skip-link:focus { top: 16px; }
.eyebrow { margin: 0 0 20px; font-size: .75rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  padding: 14px max(40px, calc((100vw - 1240px) / 2));
  color: #fff;
  background: linear-gradient(to bottom, rgba(20, 4, 4, .72), transparent);
  transition: background .25s ease, color .25s ease, min-height .25s ease;
}
.site-header.scrolled { min-height: 68px; color: var(--ink); background: rgba(255, 250, 244, .92); backdrop-filter: blur(18px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { display: grid; place-items: center; width: 44px; aspect-ratio: 1; border-radius: 14px; color: #fff; background: var(--red); font-weight: 900; transform: rotate(-5deg); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 1.05rem; letter-spacing: .08em; }
.brand-text small { margin-top: 5px; font-size: .55rem; letter-spacing: .15em; opacity: .64; }
.site-nav { display: flex; align-items: center; gap: 30px; font-size: .9rem; font-weight: 650; }
.site-nav a { position: relative; }
.site-nav a:not(.nav-cta):not(.nav-library)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -6px; height: 2px; background: currentColor; transition: right .25s ease; }
.site-nav a:hover::after, .site-nav a:focus-visible::after { right: 0; }
.nav-library { padding: 10px 16px; border: 1px solid rgba(245,34,53,.22); border-radius: 999px; color: var(--red); background: #fff0eb; font-weight: 850; }
.nav-cta { padding: 11px 18px; border-radius: 999px; color: #fff; background: var(--red); }
.menu-toggle { display: none; border: 0; color: inherit; background: transparent; font-weight: 700; }

.hero {
  position: relative;
  min-height: 920px;
  display: grid;
  place-items: center;
  padding: 125px max(40px, calc((100vw - 1240px) / 2)) 105px;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 15% 18%, rgba(255, 212, 71, .5), transparent 19%),
    radial-gradient(circle at 88% 22%, rgba(255, 61, 121, .6), transparent 25%),
    radial-gradient(circle at 50% 88%, rgba(255, 121, 0, .65), transparent 34%),
    linear-gradient(145deg, #b60719 0%, #f51d32 42%, #ff4a20 72%, #ff7a00 100%);
}
.hero::after { content: "爆火"; position: absolute; left: 50%; bottom: -11vw; color: rgba(255,255,255,.07); font-size: min(38vw, 560px); font-weight: 1000; line-height: 1; letter-spacing: -.12em; white-space: nowrap; transform: translateX(-50%); }
.hero-orbit { position: absolute; left: 50%; top: 50%; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; pointer-events: none; }
.orbit-one { width: 720px; height: 720px; transform: translate(-50%, -50%); animation: pulse-ring 6s ease-in-out infinite; }
.orbit-two { width: 470px; height: 470px; border-style: dashed; transform: translate(-50%, -50%); animation: spin-ring 24s linear infinite; }
.hero-content { position: relative; z-index: 2; width: min(920px, 100%); }
.hero-burst { text-align: center; }
.hero-promise { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 7px; margin: 0 auto 22px; isolation: isolate; animation: promise-entrance .8s cubic-bezier(.2,.9,.25,1.15) both; }
.hero-promise::before { content: ""; position: absolute; left: 18%; right: 18%; top: 50%; z-index: -1; border-top: 2px dashed rgba(255,255,255,.45); transform: rotate(-3deg); }
.hero-promise::after { content: "✦"; position: absolute; right: -17px; top: -16px; color: var(--yellow); font-size: 1rem; text-shadow: 0 0 16px rgba(255,212,71,.8); animation: promise-twinkle 1.8s ease-in-out infinite; }
.promise-choice, .promise-hit { display: block; padding: 7px 15px; border-radius: 999px; font-size: .78rem; font-style: normal; font-weight: 950; letter-spacing: .08em; line-height: 1.2; white-space: nowrap; }
.promise-choice { color: var(--red-deep); background: rgba(255,255,255,.96); box-shadow: 0 9px 24px rgba(89,0,9,.2); transform: rotate(-3deg); }
.promise-hit { position: relative; color: #9b1018; background: var(--yellow); box-shadow: 0 9px 24px rgba(255,212,71,.28); transform: rotate(3deg); animation: promise-glow 2.8s ease-in-out infinite; }
.promise-hit::after { content: ""; position: absolute; left: 13%; right: 9%; bottom: -7px; height: 7px; border-bottom: 3px solid #fff; border-radius: 50%; transform: rotate(-2deg); opacity: .9; }
.promise-flame { display: grid; place-items: center; z-index: 2; width: 32px; height: 32px; margin-inline: -11px; border: 2px solid rgba(255,255,255,.88); border-radius: 50%; background: linear-gradient(145deg, #ff4d6d, #ff7900); box-shadow: 0 7px 18px rgba(113,0,10,.28); font-size: .9rem; font-style: normal; animation: promise-flame 1.5s ease-in-out infinite; }
.hero h1 { display: flex; flex-direction: column; align-items: center; margin: 0; font-size: clamp(4.4rem, 7.5vw, 7.8rem); line-height: .9; letter-spacing: -.08em; font-weight: 950; text-shadow: 0 14px 44px rgba(111, 0, 6, .24); }
.hero h1 span { font-size: .72em; color: var(--yellow); transform: rotate(-2deg); }
.hero h1 em { margin-top: 18px; color: #fff; font-size: .76em; font-style: normal; }
.section-title em, .section-heading em, .contact h2 em { color: #ffb5ae; font-style: normal; }
.hero-copy { max-width: 720px; margin: 24px auto 0; font-size: 1.12rem; color: rgba(255,255,255,.88); }
.hero-stats { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; max-width: 720px; margin: 24px auto 0; }
.hero-stats > div { grid-column: span 3; }
.hero-stats div { padding: 13px 14px; border: 1px solid rgba(255,255,255,.28); border-radius: 22px; background: rgba(112, 0, 9, .22); backdrop-filter: blur(12px); box-shadow: inset 0 1px rgba(255,255,255,.14); }
.hero-stats span { display: block; font-size: .72rem; color: rgba(255,255,255,.72); }
.hero-stats strong { display: block; margin-top: 4px; color: #fff; font-size: 1.85rem; line-height: 1; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 30px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; padding: 0 24px; border: 1px solid rgba(255,255,255,.35); border-radius: 999px; font-weight: 800; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--red-deep); background: var(--yellow); border-color: var(--yellow); box-shadow: 0 12px 32px rgba(255, 212, 71, .32); }
.button-ghost { color: #fff; }
.snapshot-note { margin: 14px 0 0; color: rgba(255,255,255,.62); font-size: .7rem; }
.danmaku-layer { position: absolute; inset: 0; z-index: 3; pointer-events: none; }
.danmaku { position: absolute; display: block; padding: 9px 16px; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; color: #fff; background: rgba(104,0,12,.28); box-shadow: 0 12px 34px rgba(86,0,8,.18); font-size: .7rem; font-weight: 850; letter-spacing: .04em; white-space: nowrap; backdrop-filter: blur(10px); animation: danmaku-cycle 8.8s ease-in-out infinite; }
.danmaku-a { left: 3vw; top: 25%; color: #9a2014; background: rgba(255,212,71,.9); transform: rotate(-6deg); animation-duration: 5.2s; }
.danmaku-b { right: 2vw; top: 22%; background: rgba(255,61,121,.68); animation-delay: -2.1s; animation-duration: 4.3s; }
.danmaku-c { left: -1vw; top: 52%; background: rgba(38,155,67,.72); animation-delay: -3.7s; animation-duration: 5.8s; }
.danmaku-d { right: 2vw; top: 50%; background: rgba(255,108,0,.76); animation-delay: -1.4s; animation-duration: 4.7s; }
.danmaku-e { right: 8vw; bottom: 14%; animation-delay: -4.2s; animation-duration: 6.1s; }
.heat-particle-field { position: absolute; inset: 0; }
.heat-particle { position: absolute; left: var(--x); top: var(--y); display: grid; place-items: center; margin: 0; color: #fff; font-style: normal; pointer-events: none; opacity: 0; will-change: transform, opacity, filter; animation: heat-particle-drift var(--duration) linear var(--delay) infinite; }
.heat-particle.icon { width: 48px; height: 48px; border: 1px solid rgba(255,255,255,.3); border-radius: 17px; background: rgba(112,0,16,.32); box-shadow: 0 0 0 7px rgba(255,255,255,.035), 0 12px 34px rgba(80,0,12,.24); font-size: 1.35rem; backdrop-filter: blur(10px); }
.heat-particle.badge { min-height: 34px; padding: 7px 13px; border: 1px solid rgba(255,255,255,.24); border-radius: 999px; box-shadow: 0 10px 30px rgba(74,0,9,.2); font-size: .67rem; font-weight: 900; letter-spacing: .02em; white-space: nowrap; backdrop-filter: blur(10px); }
.heat-particle.warm { background: linear-gradient(145deg, rgba(255,212,71,.54), rgba(255,121,0,.68)); }
.heat-particle.hot { background: linear-gradient(145deg, rgba(255,75,104,.66), rgba(236,24,41,.72)); }
.heat-particle.pink { background: linear-gradient(145deg, rgba(255,61,148,.7), rgba(151,0,69,.64)); }
.heat-particle.gold { color: #fff4a8; background: linear-gradient(145deg, rgba(255,190,0,.62), rgba(255,91,0,.68)); }
.heat-particle.green { color: #e7ffed; background: rgba(21,143,64,.76); }
.heat-particle.blue { color: #eaf7ff; background: rgba(24,118,205,.68); }
.hero-scroll { position: absolute; left: max(40px, calc((100vw - 1240px) / 2)); bottom: 34px; z-index: 2; display: flex; align-items: center; gap: 12px; font-size: .6rem; letter-spacing: .18em; opacity: .65; }
.hero-scroll span { display: block; width: 70px; height: 1px; background: currentColor; }

.ticker { overflow: hidden; padding: 15px 0; color: #fff; background: linear-gradient(90deg, #ff3d79, #f52235 45%, #ff7900); font-size: .82rem; font-weight: 800; letter-spacing: .1em; white-space: nowrap; }
.ticker div { width: max-content; animation: ticker 24s linear infinite; }
.ticker i { margin: 0 30px; color: var(--yellow); font-style: normal; }

.section { width: var(--page); margin: 0 auto; padding: 130px 0; }
.section-label { display: flex; align-items: center; gap: 14px; margin-bottom: 82px; font-size: .7rem; font-weight: 850; letter-spacing: .18em; }
.section-label span { display: grid; place-items: center; width: 40px; height: 40px; border: 1px solid currentColor; border-radius: 50%; }
.about-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 100px; }
.section-title h2, .section-heading h2 { margin: 0; font-size: clamp(3rem, 5vw, 5.8rem); line-height: 1.08; letter-spacing: -.06em; }
.section-title h2 em, .section-heading h2 em { color: var(--red); }
.about-copy { align-self: end; font-size: 1.05rem; color: var(--muted); }
.about-copy .lead { color: var(--ink); font-size: 1.32rem; font-weight: 750; }
.pending-note { margin-top: 28px; padding: 16px 18px; border-left: 3px solid var(--red); background: #fff; font-size: .85rem; }
.fact-strip { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 86px; border-block: 1px solid var(--line); }
.fact-strip div { padding: 28px 30px; border-right: 1px solid var(--line); }
.fact-strip div:last-child { border-right: 0; }
.fact-strip strong { display: block; color: var(--red); font-size: clamp(1.8rem, 3vw, 3rem); line-height: 1.1; }
.fact-strip span { color: var(--muted); font-size: .85rem; }

.team-section { position: relative; display: grid; grid-template-columns: 1fr 1fr; align-items: center; min-height: 720px; padding: 80px max(40px, calc((100vw - 1240px) / 2)); overflow: hidden; color: #fff; background: radial-gradient(circle at 12% 20%, rgba(255,212,71,.5), transparent 26%), linear-gradient(135deg, #ff3d79, #f52235 48%, #ff7900); }
.team-number { font-size: clamp(15rem, 32vw, 32rem); font-weight: 1000; line-height: .7; letter-spacing: -.13em; transform: translateX(-4%); }
.team-copy { position: relative; z-index: 2; max-width: 560px; }
.team-copy h2 { margin: 0 0 24px; font-size: clamp(3rem, 5vw, 5.6rem); line-height: 1.05; letter-spacing: -.06em; }
.team-copy p:last-child { color: rgba(255,255,255,.74); }
.team-stamp { position: absolute; right: 5vw; bottom: 38px; display: grid; place-items: center; width: 150px; aspect-ratio: 1; border: 1px solid rgba(255,255,255,.45); border-radius: 50%; transform: rotate(10deg); }
.team-stamp::before { content: ""; position: absolute; inset: 7px; border: 1px dashed rgba(255,255,255,.38); border-radius: 50%; }
.team-stamp span { font-size: .65rem; letter-spacing: .2em; }
.team-stamp b { font-size: .9rem; }

.capabilities { background: var(--paper); }
.section-heading { max-width: 1040px; }
.capability-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 76px; }
.capability-card { position: relative; min-height: 360px; padding: 38px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: color .3s ease, background .3s ease, transform .3s ease; }
.capability-card:hover { color: #fff; background: var(--red); transform: translateY(-6px); }
.card-number { font-size: .72rem; font-weight: 850; letter-spacing: .15em; }
.capability-card h3 { max-width: 360px; margin: 88px 0 20px; font-size: clamp(2rem, 3vw, 3.5rem); line-height: 1.08; letter-spacing: -.04em; }
.capability-card p { max-width: 480px; color: var(--muted); }
.capability-card:hover p { color: rgba(255,255,255,.78); }
.card-line { position: absolute; right: 38px; top: 38px; width: 70px; height: 70px; border-top: 2px solid currentColor; border-right: 2px solid currentColor; border-radius: 0 22px 0 0; opacity: .3; }

.gene-section { padding: 130px max(40px, calc((100vw - 1240px) / 2)); color: #fff; background: radial-gradient(circle at 8% 15%, rgba(255,212,71,.28), transparent 24%), radial-gradient(circle at 90% 82%, rgba(255,61,121,.28), transparent 28%), #1a0f12; }
.gene-inner { width: min(1240px, 100%); margin: 0 auto; }
.gene-heading { display: grid; grid-template-columns: 1fr 360px; align-items: end; gap: 70px; }
.gene-heading h2 { margin: 0; font-size: clamp(3.2rem, 5.5vw, 6rem); line-height: 1.02; letter-spacing: -.065em; }
.gene-heading h2 em { color: var(--yellow); font-style: normal; }
.gene-heading > p { color: rgba(255,255,255,.58); }
.gene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 72px; }
.gene-card { min-height: 390px; padding: 34px; border: 1px solid rgba(255,255,255,.13); border-radius: 28px; background: linear-gradient(155deg, rgba(255,255,255,.08), rgba(255,255,255,.025)); }
.gene-card > span { color: var(--yellow); font-size: .72rem; font-weight: 900; }
.gene-card > small { display: block; margin-top: 8px; color: rgba(255,255,255,.42); font-size: .62rem; letter-spacing: .14em; }
.gene-card h3 { margin: 125px 0 18px; font-size: clamp(2rem, 3vw, 3.2rem); letter-spacing: -.05em; }
.gene-card p { color: rgba(255,255,255,.62); }

.accounts-section { color: #fff; background: radial-gradient(circle at 80% 20%, rgba(255,61,121,.28), transparent 26%), radial-gradient(circle at 10% 90%, rgba(255,121,0,.28), transparent 30%), #1b1012; }
.accounts-inner { padding-bottom: 150px; }
.accounts-heading { display: grid; grid-template-columns: 1fr 340px; align-items: end; gap: 60px; }
.accounts-heading h2 { margin: 0; max-width: 760px; font-size: clamp(3.2rem, 5.5vw, 6rem); line-height: 1.04; letter-spacing: -.06em; }
.accounts-heading > p { color: rgba(255,255,255,.55); }
.account-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 72px; }
.account-card { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 24px; min-height: 180px; padding: 28px; border: 1px solid rgba(255,255,255,.13); border-radius: 28px; background: rgba(255,255,255,.04); }
.account-avatar { display: grid; place-items: center; width: 96px; aspect-ratio: 1; border-radius: 32px; color: #fff; background: linear-gradient(145deg, var(--magenta), var(--red-hot) 52%, var(--orange)); font-size: 2.6rem; font-weight: 950; box-shadow: 0 14px 34px rgba(245,34,53,.28); }
.account-avatar img { width: 100%; height: 100%; border-radius: inherit; object-fit: cover; }
.account-card span { color: rgba(255,255,255,.45); font-size: .65rem; letter-spacing: .12em; }
.account-card h3 { margin: 8px 0 4px; font-size: 2rem; }
.account-card p { margin: 0; color: rgba(255,255,255,.6); font-size: .85rem; }
.account-card .account-arrow { color: #fff; font-size: 1.4rem; }
.account-more { grid-template-columns: 1fr auto; color: var(--ink); background: var(--cream); }
.account-more span, .account-more p { color: var(--muted); }

.section-heading.compact h2 { font-size: clamp(2.8rem, 4.6vw, 5rem); }
.process-list { margin: 76px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.process-list li { display: grid; grid-template-columns: 80px .7fr 1fr; gap: 40px; align-items: center; padding: 32px 6px; border-bottom: 1px solid var(--line); }
.process-list li > span { color: var(--red); font-size: .75rem; font-weight: 850; letter-spacing: .18em; }
.process-list h3 { margin: 0; font-size: 1.75rem; }
.process-list p { margin: 0; color: var(--muted); }

.scene-section { padding: 130px max(40px, calc((100vw - 1240px) / 2)); background: var(--pink); }
.scene-heading { display: grid; grid-template-columns: 1fr 390px; align-items: end; gap: 70px; }
.scene-heading h2 { margin: 0; font-size: clamp(3.2rem, 5.2vw, 5.7rem); line-height: 1.03; letter-spacing: -.06em; }
.scene-heading h2 em { color: var(--red); font-style: normal; }
.scene-heading > p { color: var(--muted); }
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 70px; }
.scene-card { min-height: 310px; padding: 30px; border: 1px solid rgba(23,18,17,.12); border-radius: 26px; background: rgba(255,255,255,.72); transition: transform .25s ease, background .25s ease; }
.scene-card:hover { color: #fff; background: linear-gradient(145deg, var(--magenta), var(--red-hot) 56%, var(--orange)); transform: translateY(-5px); }
.scene-card > div { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.scene-card span { color: var(--red); font-size: .72rem; font-weight: 900; }
.scene-card small { color: var(--muted); font-size: .62rem; letter-spacing: .12em; }
.scene-card h3 { margin: 92px 0 16px; font-size: 2rem; letter-spacing: -.04em; }
.scene-card p { color: var(--muted); }
.scene-card:hover span, .scene-card:hover small, .scene-card:hover p { color: rgba(255,255,255,.75); }

.contact { padding: 150px max(40px, calc((100vw - 1240px) / 2)) 80px; color: #fff; background: radial-gradient(circle at 86% 20%, rgba(255,212,71,.46), transparent 25%), linear-gradient(125deg, #f52235, #ff3d79 55%, #ff7900); }
.contact h2 { max-width: 1100px; margin: 0; font-size: clamp(4rem, 8vw, 8.5rem); line-height: .96; letter-spacing: -.075em; }
.contact h2 em { color: #fff; text-decoration: underline; text-decoration-thickness: .06em; text-underline-offset: .1em; }
.contact-bottom { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-top: 100px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,.35); }
.contact-bottom p { margin: 0; color: rgba(255,255,255,.72); }
.contact-bottom a { font-size: clamp(1.4rem, 3vw, 2.8rem); font-weight: 850; }
.contact-bottom a span { display: inline-block; margin-left: 10px; transition: transform .2s ease; }
.contact-bottom a:hover span { transform: translate(5px, -5px); }

.site-footer { display: grid; grid-template-columns: 1.3fr 1fr 1fr auto; align-items: center; gap: 32px; padding: 38px max(40px, calc((100vw - 1240px) / 2)); color: rgba(255,255,255,.58); background: #110e0d; font-size: .75rem; }
.footer-brand { display: flex; align-items: center; gap: 14px; color: #fff; font-size: 1rem; }
.footer-brand .brand-mark { width: 36px; border-radius: 11px; }

.reveal { opacity: 1; transform: translateY(24px); transition: transform .7s ease; }
.reveal.is-visible { transform: translateY(0); }
@keyframes float { 0%, 100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-16px) rotate(5deg); } }
@keyframes pulse-ring { 0%, 100% { opacity: .55; transform: translate(-50%, -50%) scale(.96); } 50% { opacity: 1; transform: translate(-50%, -50%) scale(1.04); } }
@keyframes spin-ring { to { transform: translate(-50%, -50%) rotate(360deg); } }
@keyframes ticker { to { transform: translateX(-50%); } }
@keyframes danmaku-cycle { 0%, 100% { opacity: 0; translate: -16px 8px; scale: .82; } 22%, 58% { opacity: 1; translate: 0 0; scale: 1; } 78% { opacity: .18; translate: 16px -8px; scale: .9; } }
@keyframes heat-particle-drift { 0% { opacity: 0; transform: translate3d(0, 0, 0) rotate(var(--tilt)) scale(.72); } 6% { opacity: 1; } 38% { opacity: 1; } 54% { opacity: .94; } 70% { opacity: .72; } 84% { opacity: .4; } 94% { opacity: .18; } 100% { opacity: 0; transform: translate3d(var(--travel-x), var(--travel-y), 0) rotate(var(--end-tilt)) scale(.62); } }
@keyframes promise-entrance { from { opacity: 0; filter: blur(8px); transform: translateY(-16px) scale(.82); } to { opacity: 1; filter: blur(0); transform: translateY(0) scale(1); } }
@keyframes promise-twinkle { 0%, 100% { opacity: .35; transform: rotate(-12deg) scale(.72); } 50% { opacity: 1; transform: rotate(10deg) scale(1.18); } }
@keyframes promise-glow { 0%, 100% { box-shadow: 0 9px 24px rgba(255,212,71,.24); } 50% { box-shadow: 0 9px 30px rgba(255,212,71,.64), 0 0 0 5px rgba(255,212,71,.1); } }
@keyframes promise-flame { 0%, 100% { transform: translateY(0) rotate(-5deg) scale(.94); } 50% { transform: translateY(-3px) rotate(5deg) scale(1.08); } }

@media (max-width: 980px) {
  :root { --page: min(100% - 44px, 760px); }
  .site-header { padding-inline: 24px; }
  .menu-toggle { display: block; }
  .site-nav { position: absolute; top: 72px; left: 18px; right: 18px; display: none; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; padding: 14px; color: var(--ink); background: var(--paper); border-radius: 20px; box-shadow: 0 20px 60px rgba(0,0,0,.18); }
  .site-nav.open { display: grid; }
  .site-nav a { padding: 14px; border: 1px solid rgba(23,18,17,.08); border-radius: 14px; background: #fff; text-align: center; }
  .site-nav a::after { display: none; }
  .site-nav .nav-library { grid-column: 1 / -1; color: #fff; border-color: transparent; background: linear-gradient(120deg, #ff1744, #ff3d79 58%, #ff7900); }
  .site-nav .nav-cta { grid-column: 1 / -1; margin-top: 0; color: #fff; border-color: transparent; background: var(--red); text-align: center; }
  .hero { min-height: 860px; padding-inline: 28px; padding-top: 130px; }
  .hero h1 { font-size: clamp(4rem, 11vw, 6rem); }
  .hero-stats { max-width: 650px; }
  .danmaku-a, .danmaku-c { left: 1vw; }
  .danmaku-b, .danmaku-d { right: 1vw; }
  .orbit-one { width: 650px; height: 650px; }
  .about-grid, .team-section, .accounts-heading, .gene-heading, .scene-heading { grid-template-columns: 1fr; }
  .about-grid { gap: 42px; }
  .team-section { gap: 50px; padding-block: 110px; }
  .team-number { font-size: min(56vw, 25rem); }
  .capability-grid, .account-grid { grid-template-columns: 1fr; }
  .gene-grid, .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .accounts-heading { gap: 30px; }
  .process-list li { grid-template-columns: 55px 1fr; }
  .process-list p { grid-column: 2; }
  .gene-heading, .scene-heading { gap: 28px; }
  .site-footer { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  :root { --page: calc(100% - 32px); --radius: 22px; }
  .site-header { min-height: 68px; padding: 10px 16px; }
  .brand-mark { width: 38px; border-radius: 12px; }
  .brand-text strong { font-size: .92rem; }
  .hero { min-height: 780px; padding: 110px 18px 76px; }
  .hero-promise { top: 18px; margin-bottom: 26px; }
  .hero h1 { font-size: clamp(3.35rem, 16vw, 5.1rem); }
  .hero h1 em { margin-top: 12px; font-size: .68em; }
  .hero-copy { font-size: 1rem; }
  .button { width: 100%; }
  .hero-stats { gap: 8px; margin-top: 28px; }
  .hero-stats div { padding: 16px 8px; border-radius: 18px; }
  .hero-stats strong { font-size: 1.7rem; }
  .hero-stats span { font-size: .66rem; }
  .danmaku { display: none; }
  .heat-particle:nth-child(n+25) { display: none; }
  .heat-particle.icon { width: 34px; height: 34px; border-radius: 12px; font-size: .92rem; }
  .heat-particle.badge { min-height: 28px; padding: 5px 9px; font-size: .56rem; }
  .orbit-one { width: 520px; height: 520px; }
  .orbit-two { width: 340px; height: 340px; }
  .hero-scroll { display: none; }
  .section { padding: 90px 0; }
  .section-label { margin-bottom: 50px; }
  .section-title h2, .section-heading h2, .accounts-heading h2, .gene-heading h2, .scene-heading h2 { font-size: clamp(2.6rem, 12vw, 4rem); }
  .fact-strip { grid-template-columns: 1fr; }
  .fact-strip div { border-right: 0; border-bottom: 1px solid var(--line); }
  .fact-strip div:last-child { border-bottom: 0; }
  .team-section { padding-inline: 20px; min-height: 620px; }
  .team-copy h2 { font-size: 3.1rem; }
  .team-stamp { width: 120px; }
  .capability-card { min-height: 300px; padding: 28px; }
  .capability-card h3 { margin-top: 70px; }
  .account-card { grid-template-columns: auto 1fr; gap: 18px; }
  .account-avatar { width: 68px; border-radius: 22px; }
  .account-arrow { display: none; }
  .process-list li { gap: 18px; }
  .gene-section, .scene-section, .contact { padding-inline: 20px; padding-block: 90px; }
  .gene-grid, .scene-grid { grid-template-columns: 1fr; margin-top: 48px; }
  .gene-card { min-height: 310px; padding: 28px; }
  .gene-card h3 { margin-top: 80px; }
  .scene-card { min-height: 270px; }
  .scene-card h3 { margin-top: 70px; }
  .contact h2 { font-size: clamp(3.7rem, 16vw, 6rem); }
  .contact-bottom { align-items: flex-start; flex-direction: column; margin-top: 70px; }
  .site-footer { grid-template-columns: 1fr; padding: 34px 20px; }
}

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