:root {
  --ink: #101820;
  --muted: #5d6871;
  --line: #dce2e5;
  --paper: #f6f8f8;
  --white: #ffffff;
  --green: #2ce09b;
  --green-dark: #0f9f6e;
  --navy: #0b1721;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0; }
a { color: inherit; text-decoration: none; }

.site-header {
  position: absolute; z-index: 10; top: 0; left: 0; width: 100%; height: 88px; padding: 0 clamp(24px, 5vw, 80px);
  display: flex; align-items: center; justify-content: space-between; color: var(--white); border-bottom: 1px solid rgba(255,255,255,.14);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; color: var(--navy); background: var(--green); font-size: 20px; font-weight: 800; }
.brand-text { display: flex; flex-direction: column; gap: 2px; }
.brand-text strong { font-size: 15px; font-weight: 600; }
.brand-text small { color: rgba(255,255,255,.6); font-size: 9px; letter-spacing: 2px; }
nav { display: flex; gap: clamp(24px, 3vw, 48px); font-size: 14px; }
nav a { color: rgba(255,255,255,.72); transition: color .2s; }
nav a:hover { color: var(--green); }
.header-contact { padding: 11px 18px; border: 1px solid rgba(255,255,255,.4); font-size: 13px; }

.hero { position: relative; min-height: min(820px, 92vh); overflow: hidden; display: flex; align-items: center; padding: 130px clamp(24px, 10vw, 168px) 80px; color: var(--white); background: var(--navy); }
#network-canvas, .hero-grid { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-grid { opacity: .16; background-image: linear-gradient(rgba(255,255,255,.14) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.14) 1px, transparent 1px); background-size: 80px 80px; mask-image: linear-gradient(90deg, #000 0%, transparent 70%); }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,23,33,.18), rgba(11,23,33,.05) 52%, rgba(11,23,33,.32)); pointer-events: none; }
.hero-content { position: relative; z-index: 2; width: min(780px, 100%); }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 28px; color: rgba(255,255,255,.64); font-size: 11px; font-weight: 600; letter-spacing: 2.5px; }
.eyebrow span { width: 32px; height: 2px; background: var(--green); }
.eyebrow.dark { color: var(--muted); }
h1 { margin: 0; font-size: clamp(46px, 6vw, 84px); line-height: 1.15; font-weight: 650; }
.hero-summary { max-width: 610px; margin: 32px 0 36px; color: rgba(255,255,255,.66); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; gap: 14px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-width: 148px; min-height: 48px; padding: 0 22px; font-size: 14px; transition: .2s; }
.button-primary { color: var(--navy); background: var(--green); }
.button-primary:hover { background: #54e8ad; }
.button-ghost { border: 1px solid rgba(255,255,255,.32); }
.button-ghost:hover { border-color: var(--green); color: var(--green); }
.hero-index { position: absolute; z-index: 2; right: clamp(24px, 5vw, 80px); bottom: 45px; display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.46); font-size: 10px; }
.hero-index i { width: 68px; height: 1px; background: linear-gradient(90deg, var(--green) 25%, rgba(255,255,255,.22) 25%); }

.section { padding: 112px clamp(24px, 8vw, 128px); }
.section-label { color: #859099; font-size: 10px; font-weight: 700; letter-spacing: 2px; }
.section-label.light { color: rgba(255,255,255,.45); }
.intro { background: var(--white); }
.intro-content { max-width: 1200px; margin: 48px auto 0; display: grid; grid-template-columns: 1fr 1fr; gap: 11%; }
h2 { margin: 0; font-size: clamp(34px, 4vw, 56px); line-height: 1.28; font-weight: 600; }
.intro-copy { padding-top: 44px; }
.intro-copy p { margin: 0 0 20px; color: var(--muted); font-size: 16px; line-height: 2; }

.services { color: var(--white); background: #12222c; }
.section-heading { max-width: 1200px; margin: 0 auto 52px; display: flex; align-items: end; justify-content: space-between; gap: 32px; }
.section-heading h2 { margin-top: 24px; }
.section-heading > p { max-width: 430px; margin: 0; color: rgba(255,255,255,.55); line-height: 1.9; }
.service-list { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); }
.service-list article { position: relative; min-height: 330px; padding: 36px; border-right: 1px solid rgba(255,255,255,.16); transition: background .25s; }
.service-list article:last-child { border-right: 0; }
.service-list article:hover { background: rgba(44,224,155,.07); }
.service-number { color: rgba(255,255,255,.35); font-size: 11px; }
.service-symbol { margin: 56px 0 32px; color: var(--green); font-size: 35px; }
.service-list h3 { margin: 0 0 16px; font-size: 22px; font-weight: 500; }
.service-list p { margin: 0; color: rgba(255,255,255,.52); font-size: 14px; line-height: 1.9; }

.process { background: var(--paper); }
.process-layout { max-width: 1200px; margin: 48px auto 0; display: grid; grid-template-columns: .8fr 1.2fr; gap: 10%; }
.steps { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.steps li { display: grid; grid-template-columns: 68px 1fr; gap: 18px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.steps > li > span { color: var(--green-dark); font-size: 12px; font-weight: 700; }
.steps h3 { margin: 0 0 8px; font-size: 18px; font-weight: 600; }
.steps p { margin: 0; color: var(--muted); font-size: 14px; }

.contact { color: var(--white); background: #0c171f; }
.contact-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1.15fr .85fr; gap: 10%; align-items: end; }
.contact h2 { font-size: clamp(38px, 4.5vw, 62px); }
.company-card { padding: 34px 0; border-top: 2px solid var(--green); border-bottom: 1px solid rgba(255,255,255,.18); }
.company-card small { color: var(--green); font-size: 10px; letter-spacing: 2px; }
.company-card > strong { display: block; margin: 18px 0 30px; font-size: 20px; font-weight: 500; }
.company-card dl, .company-card dd { margin: 0; }
.company-card dl > div { display: flex; justify-content: space-between; padding: 13px 0; border-top: 1px solid rgba(255,255,255,.1); font-size: 13px; }
.company-card dt { color: rgba(255,255,255,.45); }
.company-card dd { max-width: 68%; text-align: right; overflow-wrap: anywhere; }
.company-card a:hover { color: var(--green); }

footer { padding: 38px clamp(24px, 8vw, 128px); display: flex; align-items: center; justify-content: space-between; gap: 28px; color: var(--white); background: #071016; border-top: 1px solid rgba(255,255,255,.08); }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand > div { display: flex; flex-direction: column; gap: 5px; }
.footer-brand strong { font-size: 13px; }
.footer-brand small { color: rgba(255,255,255,.32); font-size: 8px; letter-spacing: 1.5px; }
.footer-meta { text-align: right; color: rgba(255,255,255,.42); font-size: 11px; line-height: 1.8; }
.footer-meta p { margin: 0; }
.footer-meta .filing { color: rgba(255,255,255,.65); }

@media (max-width: 800px) {
  .site-header { height: 72px; }
  nav, .header-contact { display: none; }
  .hero { min-height: 720px; padding-top: 120px; }
  h1 { font-size: clamp(40px, 12vw, 58px); }
  .hero-summary { font-size: 15px; }
  .section { padding-top: 80px; padding-bottom: 80px; }
  .intro-content, .process-layout, .contact-inner { grid-template-columns: 1fr; gap: 48px; }
  .intro-copy { padding-top: 0; }
  .section-heading { align-items: start; flex-direction: column; }
  .service-list { grid-template-columns: 1fr; }
  .service-list article { min-height: auto; padding: 30px 24px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.16); }
  .service-list article:last-child { border-bottom: 0; }
  .service-symbol { margin: 28px 0 20px; }
  footer { align-items: flex-start; flex-direction: column; }
  .footer-meta { text-align: left; }
  .company-card dl > div { align-items: flex-start; gap: 18px; }
  .company-card dd { max-width: 62%; }
}

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