:root {
  --cyber: #422CB0;
  --curio: #FC7D55;
  --canvas: #F6F5F2;
  --raised: #FFFFFF;
  --ink: #202027;
  --muted: #65636E;
  --dark: #16151C;
  --on-dark: #F7F6F2;
  --line: #DCD9D4;
  --max: 1160px;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--canvas);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--canvas); }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 4px; }
a:hover { color: var(--cyber); }
a:focus-visible { outline: 3px solid var(--cyber); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 10; top: -4rem; left: 1rem; padding: .75rem 1rem; background: var(--raised); border: 1px solid var(--cyber); border-radius: 12px; }
.skip-link:focus { top: 1rem; }
.shell { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 4; background: color-mix(in srgb, var(--canvas) 93%, transparent); border-bottom: 1px solid color-mix(in srgb, var(--line) 72%, transparent); backdrop-filter: blur(16px); }
.header-content { display: flex; min-height: 72px; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; color: var(--ink); text-decoration: none; font-size: 1rem; font-weight: 760; letter-spacing: -.025em; white-space: nowrap; }
.brand img { display: block; width: 31px; height: 31px; }
.nav { display: flex; align-items: center; gap: 1.15rem; font-size: .94rem; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--ink); }
.nav .locale-link { color: var(--cyber); font-weight: 760; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { text-wrap: balance; }
.eyebrow { margin: 0 0 1rem; color: var(--cyber); font-size: .98rem; font-weight: 780; letter-spacing: .06em; text-transform: uppercase; }
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-layout { display: grid; grid-template-columns: minmax(0, 1.14fr) minmax(290px, .56fr); align-items: center; min-height: min(775px, calc(100vh - 72px)); padding: clamp(5.5rem, 11vw, 9.75rem) 0 clamp(3rem, 6vw, 5rem); gap: clamp(2rem, 5vw, 5.5rem); }
.hero-content { position: relative; z-index: 1; max-width: 42rem; }
h1 { max-width: 11ch; margin-bottom: 1.55rem; font-size: clamp(3.35rem, 6vw, 6rem); line-height: .99; letter-spacing: -.066em; }
.hero-title { max-width: none; font-size: clamp(3.25rem, 5.5vw, 5.5rem); }
.hero-title .title-line { display: block; white-space: nowrap; }
.hero-copy { max-width: 38rem; margin-bottom: 2rem; color: var(--muted); font-size: clamp(1.13rem, 1.75vw, 1.33rem); line-height: 1.63; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.35rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: .72rem 1.1rem; border: 1px solid transparent; border-radius: 999px; font-size: 1rem; font-weight: 760; text-decoration: none; transition: background .22s ease, color .22s ease, transform .22s ease; }
.button-primary { background: var(--cyber); color: #FFFFFF; }
.button-primary:hover { background: #321E91; color: #FFFFFF; transform: translateY(-2px); }
.text-link { color: var(--ink); font-size: 1rem; font-weight: 720; }
.text-link span, .email-link span, .product-status span { color: var(--curio); font-size: 1.1em; }
.orbit-stage { position: relative; justify-self: end; width: min(100%, 450px); aspect-ratio: 1; }
.orbit-stage::before { position: absolute; inset: 20% 22%; border-radius: 50%; background: color-mix(in srgb, var(--curio) 15%, transparent); content: ""; filter: blur(2px); animation: breathe 6s ease-in-out infinite; }
.orbit-art { position: relative; display: block; width: 100%; height: 100%; overflow: visible; }
.orbit-ring, .orbit-path, .orbit-spark { stroke: var(--curio); stroke-width: 2; }
.orbit-ring { opacity: .5; }
.orbit-ring-one { stroke-dasharray: 6 10; transform-origin: 260px 260px; animation: orbit 24s linear infinite; }
.orbit-ring-two { opacity: .25; stroke-dasharray: 3 9; transform-origin: 260px 260px; animation: orbit-reverse 29s linear infinite; }
.orbit-path { opacity: .88; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 12 9; animation: trace 11s linear infinite; }
.orbit-spark { stroke-width: 2.5; stroke-linecap: round; }
.orbit-dot { fill: var(--curio); transform-origin: 260px 260px; }
.orbit-dot-large { animation: orbit 15s linear infinite; }
.orbit-dot-small { animation: orbit-reverse 20s linear infinite; }
.orbit-dot-mid { animation: orbit 17s linear infinite; }
.section { padding: clamp(5.25rem, 10vw, 8rem) 0; }
.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(250px, .56fr); column-gap: clamp(2.5rem, 8vw, 9rem); align-items: end; }
.section-heading .eyebrow { grid-column: 1 / -1; }
.section-heading h2 { margin: 0; max-width: 12ch; }
.section-heading > p:not(.eyebrow) { max-width: 27rem; margin: 0; color: var(--muted); font-size: 1.08rem; line-height: 1.66; }
h2 { margin-bottom: 0; font-size: clamp(2.35rem, 4.4vw, 4.25rem); line-height: 1.02; letter-spacing: -.06em; }
.product-list { margin-top: clamp(2.6rem, 6vw, 4.75rem); border-top: 1px solid var(--line); }
.product-row { display: grid; grid-template-columns: 68px minmax(0, 1fr) max-content; align-items: center; gap: clamp(1.1rem, 2.6vw, 2rem); padding: clamp(1.5rem, 2.5vw, 2.15rem) .35rem; border-bottom: 1px solid var(--line); transition: background .22s ease, padding .22s ease, transform .22s ease; }
.product-row:hover { padding-right: 1.05rem; padding-left: 1.05rem; background: color-mix(in srgb, var(--raised) 66%, transparent); transform: translateX(3px); }
.product-icon { display: grid; width: 52px; height: 52px; place-items: center; color: var(--curio); border: 1.5px solid var(--curio); border-radius: 50%; }
.product-icon svg { width: 34px; height: 34px; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.product-name { margin: 0 0 .4rem; font-size: clamp(1.25rem, 2vw, 1.6rem); font-weight: 790; letter-spacing: -.035em; }
.product-copy { max-width: 44rem; margin: 0; color: var(--muted); font-size: 1.02rem; line-height: 1.58; }
.product-status { margin: 0; color: var(--cyber); font-size: 1rem; font-weight: 760; white-space: nowrap; }
.approach { border-top: 1px solid var(--line); }
.approach-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(260px, .7fr); gap: clamp(2.5rem, 9vw, 10rem); align-items: end; }
.section-copy { max-width: 34rem; margin: .25rem 0 0; color: var(--muted); font-size: 1.14rem; line-height: 1.72; }
.principles { padding: clamp(4.75rem, 9vw, 7.25rem) 0; background: var(--dark); color: var(--on-dark); }
.principle-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.5rem, 4vw, 4rem); }
.principle { position: relative; min-height: 300px; padding: .5rem 0 0; border-top: 1px solid color-mix(in srgb, var(--on-dark) 28%, transparent); }
.principle-number { display: block; margin: 1.1rem 0 3.1rem; color: var(--curio); font-size: .88rem; font-weight: 780; letter-spacing: .08em; }
.principle-mark { position: absolute; top: 1.4rem; right: .1rem; color: var(--curio); font-size: 2rem; font-weight: 360; line-height: 1; }
.principle h3 { margin: 0 0 .75rem; font-size: clamp(1.4rem, 2vw, 1.8rem); letter-spacing: -.04em; }
.principle p { max-width: 22rem; margin: 0; color: color-mix(in srgb, var(--on-dark) 72%, transparent); font-size: 1rem; line-height: 1.65; }
.contact { border-bottom: 1px solid var(--line); }
.contact-layout { display: grid; grid-template-columns: minmax(0, 1.03fr) minmax(260px, .72fr); gap: clamp(2.5rem, 9vw, 9rem); align-items: end; }
.contact-layout h2 { max-width: 10ch; }
.contact-layout > div:last-child > p { max-width: 29rem; margin: 0 0 1.25rem; color: var(--muted); font-size: 1.13rem; line-height: 1.68; }
.email-link { display: inline-block; color: var(--cyber); font-size: clamp(1.3rem, 2vw, 1.7rem); font-weight: 780; letter-spacing: -.035em; text-decoration: none; border-bottom: 1px solid currentColor; }
.email-link:hover { color: var(--curio); }
.site-footer { padding: 1.7rem 0 2.5rem; }
.footer-row { display: flex; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: .9rem; }
.footer-row a { color: var(--muted); }
.footer-row a:hover { color: var(--cyber); }
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }
.js .product-row:nth-child(2) { transition-delay: .08s; }
.js .product-row:nth-child(3) { transition-delay: .16s; }

@keyframes orbit { to { transform: rotate(360deg); } }
@keyframes orbit-reverse { to { transform: rotate(-360deg); } }
@keyframes trace { to { stroke-dashoffset: -210; } }
@keyframes breathe { 50% { transform: scale(1.08); opacity: .7; } }

@media (max-width: 760px) {
  .shell { width: min(calc(100% - 32px), var(--max)); }
  .header-content { min-height: 64px; }
  .brand { gap: .52rem; font-size: .93rem; }
  .brand img { width: 27px; height: 27px; }
  .nav { gap: .65rem; font-size: .82rem; }
  .nav a:not(.locale-link) { display: none; }
  .hero-layout { grid-template-columns: 1fr; min-height: 0; padding: 5.25rem 0 4.5rem; gap: 1.75rem; }
  h1 { max-width: 10.5ch; font-size: clamp(3rem, 13.5vw, 4.1rem); }
  .hero-title { max-width: none; }
  .hero-title-en .title-line { display: inline; white-space: normal; }
  .hero-title-zh { font-size: clamp(2.7rem, 11.2vw, 3.1rem); letter-spacing: -.075em; }
  .hero-copy { margin-bottom: 1.6rem; font-size: 1.08rem; }
  .orbit-stage { width: min(76vw, 350px); margin: 0 auto -1rem; justify-self: center; }
  .section { padding: 4.75rem 0; }
  .section-heading, .approach-grid, .contact-layout { grid-template-columns: 1fr; gap: 1.55rem; }
  .section-heading .eyebrow { grid-column: auto; }
  .section-heading h2, .contact-layout h2 { max-width: 12ch; }
  h2 { font-size: clamp(2.25rem, 10vw, 3.25rem); }
  .product-list { margin-top: 2.4rem; }
  .product-row { grid-template-columns: 48px minmax(0, 1fr); gap: 1rem; padding: 1.4rem 0; }
  .product-row:hover { padding-right: .45rem; padding-left: .45rem; transform: none; }
  .product-icon { width: 42px; height: 42px; }
  .product-icon svg { width: 28px; height: 28px; }
  .product-copy { font-size: .98rem; }
  .product-status { grid-column: 2; margin-top: .15rem; font-size: .96rem; }
  .section-copy { font-size: 1.08rem; }
  .principle-grid { grid-template-columns: 1fr; gap: 0; }
  .principle { min-height: 0; padding: 0 0 2.3rem; border-top: 1px solid color-mix(in srgb, var(--on-dark) 28%, transparent); }
  .principle + .principle { padding-top: 2.3rem; }
  .principle-number { margin: 1.1rem 0 1.65rem; }
  .principle-mark { top: 1.3rem; }
  .contact-layout > div:last-child > p { font-size: 1.08rem; }
  .footer-row { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}